CN109724665B - Intelligent automatic constant volume system - Google Patents
Intelligent automatic constant volume system Download PDFInfo
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- CN109724665B CN109724665B CN201910131620.1A CN201910131620A CN109724665B CN 109724665 B CN109724665 B CN 109724665B CN 201910131620 A CN201910131620 A CN 201910131620A CN 109724665 B CN109724665 B CN 109724665B
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- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 51
- 230000000670 limiting effect Effects 0.000 claims description 27
- 230000005484 gravity Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 13
- 230000010355 oscillation Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000007306 turnover Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The invention discloses an intelligent automatic constant volume system, which comprises a constant volume platform, a placing mechanism, a dripping mechanism, a covering mechanism and an oscillating mechanism, wherein the covering mechanism is used for enabling a glass plug to plug a volumetric flask; the placing mechanism is used for placing the volumetric flask, and the dripping mechanism is used for dripping water into the volumetric flask; the placing mechanism comprises a turntable and a first motor; a placing frame for placing the volumetric flask is arranged on the turntable; the turntable is provided with a fixed plate, and the fixed plate is provided with a lifting assembly for lifting the placing frame; the dropping mechanism comprises a dropping device, a first controller for controlling the opening and closing of the dropping device and a liquid level sensor for calculating the dropping amount; when the first controller receives an electric signal from the liquid level sensor, the first controller controls the drip feeder to drip a proper amount of water into the volumetric flask; the covering mechanism comprises a glass plug, a placing pipe for placing the glass plug and a mandril for driving the glass plug to move downwards; the system can automatically fix the volume, is very convenient and labor-saving, and has more accurate fixed volume.
Description
Technical Field
The invention relates to a constant volume system, in particular to an intelligent automatic constant volume system.
Background
The constant volume is the process of adding water to the position 1 cm to 2 cm away from the scale mark when the volumetric flask is used for preparing the solution with accurate concentration, then using the rubber head dropper to suck water and inject the water into the volumetric flask, and enabling the sight line to be level with the lowest position of the concave liquid level so as to enable the sight line to reach the scale mark. At present, the constant volume process can only be completed by experimenters, which is time-consuming and labor-consuming, and errors are easy to generate in the constant volume process, thereby influencing the subsequent experiments. However, no system capable of automatically fixing the volume exists in the market at present.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an intelligent automatic constant volume system which can automatically fix volume, is very convenient and labor-saving and has more accurate constant volume.
In order to achieve the above purpose, the present invention provides the following technical solutions: an intelligent automatic constant volume system comprises a constant volume platform, a placing mechanism, a dripping mechanism, a covering mechanism and an oscillating mechanism for oscillating a volumetric flask; the placing mechanism is used for placing the volumetric flask, and the dripping mechanism is used for dripping a proper amount of water into the volumetric flask; the placing mechanism, the dripping mechanism, the covering mechanism and the oscillating mechanism are all distributed on the constant volume platform;
The placing mechanism comprises a rotary table and a first motor, wherein the rotary table is rotationally connected with the constant volume platform, and the first motor is used for driving the rotary table to rotate; the rotary table is fixedly connected with an output shaft of the first motor, and a placing frame for placing the volumetric flask is arranged on the rotary table; the turntable is also provided with a fixed plate, and the fixed plate is provided with a lifting assembly for lifting the placing frame;
The dropping mechanism comprises a dropping device, a first controller for controlling the opening and closing of the dropping device and a liquid level sensor for calculating the dropping amount; the liquid level sensor is in communication connection with the first controller; when the first controller receives an electric signal from the liquid level sensor, the first controller controls the drip feeder to drip a proper amount of water into the volumetric flask;
The covering mechanism comprises a plug, a placing pipe for placing the plug and a mandril for driving the plug to move downwards; the placing pipe is positioned above the constant volume platform, an annular groove is formed in the placing pipe, the plug is positioned in the annular groove, and a limiting component used for limiting the plug to slide out of the annular groove is arranged on one side, close to the constant volume platform, of the annular groove; the limiting assembly comprises a baffle and a torsion spring, the baffle is rotationally connected with the inner wall of the annular groove, one end of the torsion spring is connected with the inner wall of the annular groove, the other end of the torsion spring is connected with the baffle, and the torsion spring is used for keeping the baffle to limit the plug to slide downwards; the ejector rod is positioned at one side of the annular groove, which is away from the constant volume platform, and is in sliding connection with the annular groove, the sliding direction of the ejector rod is close to or far away from the constant volume platform, and one end of the ejector rod, which is away from the baffle, is fixedly connected with an output shaft of the first telescopic motor; when the ejector rod moves to one side close to the constant volume platform, the ejector rod is in contact with the plug, and then the plug is driven to move downwards until the plug plugs the volumetric flask.
As a further improvement of the invention, a first chute is arranged in the fixed plate, the lifting assembly is positioned in the first chute, the lifting assembly comprises two transmission gears, a transmission chain connected to the transmission gears and a driving motor, and an output shaft of the driving motor is fixedly connected with one of the transmission gears; the frame is placed towards one side of first spout and is provided with the driving medium, driving medium and frame fixed connection is placed to the driving medium, driving medium and drive chain fixed connection.
As a further improvement of the invention, the transmission piece comprises a transmission block and a first sliding block which is connected with the transmission block in a sliding way, the transmission block is fixedly connected with the placement frame, and the first sliding block is fixedly connected with the transmission chain; limiting grooves are formed in the inner walls of the two sides of the transmission block, and limiting blocks used for sliding in the limiting grooves are arranged on the first sliding blocks.
As a further improvement of the invention, the covering mechanism further comprises a conveying assembly for conveying the plugs into the placing tube, wherein the conveying assembly comprises a conveying belt for conveying the plugs, a conveying table for placing the conveying belt and a rotating motor; the conveying platform is positioned on the constant volume platform; the rotating motor is positioned on the conveying table and is used for driving the conveying belt to move; when the rotating motor works, the rotating motor drives the conveying belt to move, so that the plug is driven to move in the direction close to the placing pipe until the plug is conveyed into the annular groove; the cross section of the ejector rod is circular, and the radius of the circular shape is the same as the radius of the notch of the annular groove; when the ejector rod is inserted into the annular groove, the ejector rod limits the plug to enter the annular groove.
As a further improvement of the invention, the stopper comprises a stopper head and a stopper body connected with the stopper head, the stopper body is used for being inserted into a volumetric flask; the mass of the plug head is larger than that of the plug body, the cross section of the plug head is square, the cross section of the plug body is round, and meanwhile, the diameter length of the round is equal to the length of the side length of the square; the conveyor belt comprises a first conveyor belt and a second conveyor belt, and the first conveyor belt is positioned on one side of the conveyor table, which is away from the placing pipe; the rotating motor comprises a first rotating motor and a second rotating motor, the first rotating motor is used for driving the first conveyor belt to move, the second rotating motor is used for driving the second conveyor belt to move, and meanwhile, the conveying speed of the second conveyor belt is greater than that of the first conveyor belt; a gap exists between the first conveyor belt and the second conveyor belt, and the gap length is larger than the plug length and smaller than the plug body length; the conveying table is provided with a first groove, and the first groove is located between the first conveying belt and the second conveying belt.
As a further improvement of the invention, a sliding block for bearing the plug is arranged at the bottom of the first groove, the sliding block is in sliding connection with the first groove, the moving direction of the sliding block is close to or far from the constant volume platform, the sliding block is fixedly connected with an output shaft of a second telescopic motor, and the second telescopic motor is used for driving the sliding block to move towards the notch direction of the first groove; the conveying table is provided with a fixed column, the fixed column is provided with a swinging assembly for conveying the plug on the sliding block to the second conveying belt, and the swinging assembly comprises a rotating column, a swinging block and a working motor; the rotary column is rotationally connected with the fixed column, the working motor is positioned on the fixed column, and an output shaft of the working motor is fixedly connected with the rotary column; the swinging block is connected with the rotating column through the connecting column and is used for driving the plug on the sliding block to move.
As a further improvement of the invention, the sliding block is provided with a first control component for controlling the second telescopic motor, the first control component comprises a gravity sensor and a second controller, the gravity sensor is positioned on the sliding block, the second controller is used for controlling the second telescopic motor, and the gravity sensor is electrically connected with the second controller; when the plug is positioned on the sliding block, the gravity sensor sends out a signal, and the second controller controls the second telescopic motor to work, so that the sliding block is driven to move towards the direction approaching to the notch of the first groove; when the plug is not on the sliding block, the gravity sensor sends out a signal, and the second controller controls the second telescopic motor to work, so that the sliding block is restored to the initial position.
The invention has the beneficial effects that: through being provided with the placing frame, experimenters place the volumetric flask needing to be fixed in volume on the placing frame; after the volumetric flask is placed, the first motor is controlled to work, and as the output shaft of the first motor is fixedly connected with the turntable, the turntable moves circumferentially relative to the constant volume platform until the placement frame rotates to a position close to the drip feeder; then the placing frame is lifted by the lifting component, so that the volumetric flask is adjusted to a proper position, on one hand, the liquid level sensor is beneficial to accurately calculating the required dripping amount, and meanwhile, the dripping device is beneficial to accurately dripping; when the volumetric flask reaches a proper position, the liquid level sensor accurately calculates the dripping amount according to the distance between the liquid level in the volumetric flask and the scale mark; After calculation, the liquid level sensor sends a signal to the first controller, and the first controller controls the drip feeder to drip a proper amount of water into the volumetric flask after receiving the signal, so that the liquid level in the volumetric flask is aligned with the standard scale mark; compared with manual dripping, the method is more accurate and rapid; after the dripping is finished, the turntable continues to rotate until the placing frame rotates to the position of the placing pipe, and the volumetric flask is just positioned under the placing pipe at the moment; due to the limiting effect of the baffle, the plug cannot slide out of the annular groove under the action of gravity; when the first telescopic motor works, the output end of the first telescopic motor is fixedly connected with the ejector rod, the first telescopic motor can drive the ejector rod to move towards the direction close to the baffle plate, and the ejector rod can enter the annular groove and then is in contact with the plug; Under the action of the ejector rod, the torsion spring is deformed, and the baffle plate does not continue to play a limiting role, so that the plug can slide out of the placing pipe and then be inserted into the volumetric flask, and can be deeply inserted into the volumetric flask, so that preparation is made for the subsequent oscillation process, and the solution in the volumetric flask is ensured not to spill outside during oscillation; when the plug is inserted into the volumetric flask, the first telescopic motor drives the ejector rod to return to the initial position, and the baffle plate returns to the initial position under the action of the elasticity of the torsion spring, so that the limiting effect is continuously achieved; then the turntable is rotated again until the placing frame is moved to a position close to the oscillating mechanism, the oscillating mechanism comprises a manipulator, a turnover motor and a third telescopic motor, the manipulator comprises an upper clamping piece and a lower clamping piece, the upper clamping piece is used for being in contact with the plug, and the lower clamping piece is used for being in contact with the bottom of the volumetric flask; The placing frame is provided with a placing groove for placing the volumetric flask, the bottom of the placing groove is provided with a supporting plate for supporting the volumetric flask, the supporting plate is fixedly connected with the inner wall of the volumetric flask, the placing frame is also provided with a second groove, and the second groove is communicated with the placing groove; when the volumetric flask reaches a certain position, the third telescopic motor starts to work, so that the manipulator moves towards the direction close to the volumetric flask until the manipulator clamps the volumetric flask under the clamping action of the upper clamping piece and the lower clamping piece; after the mechanical arm clamps the volumetric flask, the volumetric flask passes through the second groove and is separated from the placement frame under the action of the third telescopic motor; after separation, the overturning motor works, so that the volumetric flask is overturned up and down and shaken uniformly, and the solute is ensured to be completely dissolved in the solvent to form a solution; After the oscillation is finished, the whole constant volume process is finished, and an experimenter takes away the volumetric flask. The whole volume-fixing process is very intelligent, manual operation is not needed, the time required for volume fixing is short and quick, and the volume fixing is accurate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a lifting assembly according to the present invention;
FIG. 3 is a schematic diagram of a dripping mechanism in the present invention;
FIG. 4 is a schematic circuit diagram of a dripping structure in the present invention;
FIG. 5 is a schematic view of the structure of the plug of the present invention;
FIG. 6 is a schematic view of the structure of the ejector pin of the present invention when it is not inserted into the placement tube;
FIG. 7 is a schematic view showing the structure of the ejector pin inserted into the placement tube according to the present invention;
FIG. 8 is a schematic view of the structure of the invention with the plugs properly placed on the conveyor;
FIG. 9 is a schematic view of the structure of the present invention when a stopper is erroneously placed on a conveyor belt;
FIG. 10 is a schematic view of the invention with a misplaced plug entering a first recess;
FIG. 11 is a schematic circuit diagram of a first control assembly according to the present invention;
FIG. 12 is a schematic view of a conveying assembly and a swinging assembly according to the present invention;
FIG. 13 is a schematic view of a placement frame according to the present invention;
FIG. 14 is a schematic diagram of an oscillating mechanism according to the present invention;
Reference numerals: 1. a constant volume platform; 2. a placement mechanism; 21. a turntable; 22. a first motor; 23. placing a frame; 231. a placement groove; 232. a support plate; 233. a second groove; 24. a fixing plate; 241. a first chute; 3. a dropping mechanism; 31. a drip feeder; 32. a first controller; 33. a liquid level sensor; 34. a camera positioner; 4. a covering mechanism; 41. a plug; 411. a plug head; 412. a plug body; 42. placing a tube; 421. an annular groove; 43. a push rod; 431. a first telescopic motor; 44. a limit component; 441. a baffle; 442. a torsion spring; 45. a first groove; 46. a sliding block; 47. a second telescopic motor; 48. fixing the column; 5. an oscillating mechanism; 51. a manipulator; 511. an upper clamping piece; 512. a lower clamping piece; 52. a third telescopic motor; 53. a turnover motor; 6. a lifting assembly; 61. a transmission gear; 62. a drive chain; 63. a driving motor; 64. a transmission member; 641. a transmission block; 642. a first slider; 643. a limit groove; 644. a limiting block; 7. a transfer assembly; 71. a conveyor belt; 711. a first conveyor belt; 712. a second conveyor belt; 72. a transfer station; 73. a rotating motor; 731. a first rotating motor; 732. a second rotating motor; 8. a swing assembly; 81. rotating the column; 82. a swinging block; 83. a working motor; 84. a connecting column; 9. a first control assembly; 91. a gravity sensor; 92. a second controller;
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals.
Referring to fig. 1 to 14, an intelligent automated constant volume system of the present embodiment includes a constant volume platform 1, a placement mechanism 2, a drip mechanism 3, a cover mechanism 4 for plugging a volumetric flask with a plug 41, and an oscillation mechanism 5 for oscillating the volumetric flask; the placing mechanism 2 is used for placing a volumetric flask, and the dripping mechanism 3 is used for dripping a proper amount of water into the volumetric flask; the placing mechanism 2, the dropping mechanism 3, the covering mechanism 4 and the oscillating mechanism 5 are all distributed on the constant volume platform 1;
The placing mechanism 2 comprises a rotary table 21 rotatably connected with the constant volume platform 1 and a first motor 22 for driving the rotary table 21 to rotate; the rotary table 21 is fixedly connected with an output shaft of the first motor 22, and a placing frame 23 for placing the volumetric flask is arranged on the rotary table 21; the turntable 21 is also provided with a fixed plate 24, and the fixed plate 24 is provided with a lifting assembly 6 for lifting the placing frame 23;
The dropping mechanism 3 comprises a dropping device 31, a first controller 32 for controlling the opening and closing of the dropping device 31 and a liquid level sensor 33 for calculating the dropping amount; the dropping device 31 is fixedly connected to the constant volume platform 1, and the liquid level sensor 33 is in communication connection with the first controller 32; when the first controller 32 receives an electric signal from the liquid level sensor 33, thereby controlling the drip 31 to drip an appropriate amount of water into the volumetric flask;
The covering mechanism 4 comprises a plug 41, a placing pipe 42 for placing the plug 41 and a mandril 43 for driving the plug 41 to move downwards; the placing pipe 42 is positioned above the constant volume platform 1, an annular groove 421 is arranged in the placing pipe 42, the plug 41 is positioned in the annular groove 421, and a limiting component 44 for limiting the plug 41 to slide out of the annular groove 421 is arranged on one side of the annular groove 421, which is close to the constant volume platform 1; the limiting assembly 44 comprises a baffle 441 and a torsion spring 442, the baffle 441 is rotationally connected with the inner wall of the annular groove 421, one end of the torsion spring 442 is connected with the inner wall of the annular groove 421, the other end of the torsion spring 442 is connected with the baffle 441, and the torsion spring 442 is used for keeping the baffle 441 to limit the plug 41 to slide downwards; the ejector rod 43 is positioned at one side of the annular groove 421, which is away from the constant volume platform 1, the ejector rod 43 is in sliding connection with the annular groove 421, the sliding direction of the ejector rod 43 is close to or far away from the constant volume platform 1, and one end of the ejector rod 43, which is away from the baffle 441, is fixedly connected with an output shaft of the first telescopic motor 431; when the ejector rod 43 moves to the side close to the constant volume platform 1, the ejector rod 43 is abutted against the plug 41, and then the plug 41 is driven to move downwards until the plug 41 plugs the volumetric flask. As an improved embodiment of the present invention,
Through the technical scheme: by arranging the placing frame 23, an experimenter places a volumetric flask with a fixed volume on the placing frame 23; after the volumetric flask is placed, the first motor 22 is controlled to work, and as the output shaft of the first motor 22 is fixedly connected with the turntable 21, the turntable 21 moves circumferentially relative to the constant volume platform 1 until the placement frame 23 rotates to a position close to the drip feeder 31; then the placing frame 23 is lifted by the lifting component 6, so that the volumetric flask is adjusted to a proper position, on one hand, the liquid level sensor 33 is beneficial to accurately calculating the required dripping amount, and on the other hand, the dripping device 31 is beneficial to accurately dripping; when the volumetric flask reaches a proper position, the liquid level sensor 33 accurately calculates the dripping amount according to the distance between the liquid level in the volumetric flask and the scale mark; After calculation, the liquid level sensor 33 sends a signal to the first controller 32, and after the first controller 32 receives the signal, the first controller controls the drip feeder 31 to drip a proper amount of water into the volumetric flask so that the liquid level in the volumetric flask is aligned with the standard scale mark; compared with manual dripping, the method is more accurate and rapid; preferably, a camera positioning instrument 34 can be placed on the drip feeder 31, the camera positioning instrument 34 is coupled with the controller, the camera positioning instrument 34 is used for determining whether the volumetric flask reaches a designated position, and if so, drip feeding is started; if not, continuing to adjust the position of the volumetric flask through the lifting assembly 6; after the dripping is finished, the turntable 21 continues to rotate until the placement frame 23 is rotated to the position of the placement tube 42, and the volumetric flask is positioned right below the placement tube 42; Preferably, a checker is arranged on the placing pipe 42, and is used for checking whether the liquid level in the volumetric flask is consistent with the standard scale mark, if so, the subsequent operation is carried out, and if not, the placing frame 23 is rotated to a position close to the dropping device 31 again for dropping again, so that the accuracy of dropping amount and the success of volume fixing are further ensured; as can be seen from fig. 6 and 7; initially, the stopper 41 does not slip out of the annular groove 421 due to gravity due to the limiting action of the baffle 441; after the first telescopic motor 431 works, the output end of the first telescopic motor 431 is fixedly connected with the ejector rod 43, so that the first telescopic motor 431 drives the ejector rod 43 to move towards the direction close to the baffle 441, and the ejector rod 43 enters the annular groove 421 and then is in contact with the plug 41; Under the action of the ejector rod 43, the torsion spring 442 is deformed, the baffle 441 does not continue to play a limiting role, so that the plug 41 can slide out of the placing pipe 42 and then be inserted into the volumetric flask, and can be deeply inserted into the volumetric flask, so that preparation is made for the subsequent oscillation process, and the solution in the volumetric flask is ensured not to spill outside during oscillation; when the plug 41 is inserted into the volumetric flask, the first telescopic motor 431 drives the ejector rod 43 to return to the initial position, and the baffle 441 returns to the initial position under the elastic force of the torsion spring 442, so that the limiting function is continuously achieved; the turntable 21 is then turned again until the placement frame 23 is moved close to the oscillating mechanism 5; The oscillating mechanism 5 comprises a manipulator 51, a turnover motor 53 and a third telescopic motor 52, the manipulator 51 comprises an upper clamping piece 511 and a lower clamping piece 512, the upper clamping piece 511 is used for being abutted against the plug 41, and the lower clamping piece 512 is used for being abutted against the bottom of the volumetric flask; as shown in fig. 13, the placement frame 23 is provided with a placement groove 231 for placing a volumetric flask, a support plate 232 for supporting the volumetric flask is arranged at the bottom of the placement groove 231, the support plate 232 is fixedly connected with the inner wall of the volumetric flask, the placement frame 23 is also provided with a second groove 233, and the second groove 233 is communicated with the placement groove 231; when the volumetric flask reaches a certain position, the third telescopic motor 52 starts to work, so that the manipulator 51 moves towards the direction close to the volumetric flask until the manipulator 51 clamps the volumetric flask under the clamping action of the upper clamping piece 511 and the lower clamping piece 512; After the mechanical arm 51 clamps the volumetric flask, the volumetric flask passes through the second groove 233 and is separated from the placement frame 23 under the action of the third telescopic motor 52; after separation, the overturning motor 53 works, so that the volumetric flask is overturned up and down and shaken uniformly, and the solute is ensured to be completely dissolved in the solvent to form a solution; after the oscillation is finished, the whole constant volume process is finished, and an experimenter takes away the volumetric flask. The whole volume-fixing process is very intelligent, manual operation is not needed, the time required for volume fixing is short and quick, and the volume fixing is accurate.
As a modified specific embodiment, the fixing plate 24 is provided with a first sliding slot 241, the lifting assembly 6 is located in the first sliding slot 241, the lifting assembly 6 includes two transmission gears 61, a transmission chain 62 connected to the transmission gears 61, and a driving motor 63, and an output shaft of the driving motor 63 is fixedly connected with one of the transmission gears 61; the side of the placing frame 23 facing the first chute 241 is provided with a transmission member 64, the transmission member 64 is fixedly connected with the placing frame 23, and the transmission member 64 is fixedly connected with the transmission chain 62.
Through the technical scheme: in order to ensure smooth completion of operations such as the insertion of the stopper 41 into the volumetric flask and the accurate placement of the volumetric flask into the oscillator by the manipulator 51, etc. in the whole volumetric process, the height of the volumetric flask relative to the volumetric platform 1 needs to be changed to some extent; when the height of the volumetric flask relative to the constant volume platform 1 needs to be changed, the driving motor 63 is controlled to work, after the driving motor 63 works, the transmission gear 61 rotates, the transmission chain 62 connected with the transmission gear 61 moves, and the placing frame 23 also moves due to the fixed connection of the transmission piece 64 on the placing frame 23 and the transmission chain 62, so that the height of the volumetric flask relative to the constant volume platform 1 can be accurately changed, various operations are ensured to be completed smoothly, and the whole lifting assembly 6 is simple in structure, practical and easy to manufacture.
As an improved specific embodiment, the transmission member 64 includes a transmission block 641 and a first sliding block 642 slidingly connected with the transmission block 641, the transmission block 641 is fixedly connected with the placement frame 23, and the first sliding block 642 is fixedly connected with the transmission chain 62; limiting grooves 643 are formed in the inner walls of the two sides of the transmission block 641, and limiting blocks 644 used for sliding in the limiting grooves 643 are arranged on the first sliding blocks 642.
Through the technical scheme: the first sliding block 642 is in sliding connection with the transmission block 641, and the sliding direction of the first sliding block 642 relative to the transmission block 641 is horizontal movement, namely, when the driving motor 63 does not work, the placing frame 23 cannot move towards a direction approaching or away from the constant volume platform 1; when the driving motor 63 works, the driving chain 62 moves to drive the first sliding block 642 to move, and the first sliding block 642 then drives the driving block 641 to move, so that the placing frame 23 moves up and down; this structure ensures that the transmission chain 62 can drive the placement frame 23 to stably and smoothly perform lifting movement; through setting up the spacing groove 643 on setting up the transmission piece 641, there is stopper 644 on the first slider 642, and stopper 644 is used for sliding in spacing groove 643, further guarantees that first slider 642 can carry out horizontal slip relative to transmission piece 641, can not carry out the upper and lower slip.
As an improved embodiment, the covering mechanism 4 further comprises a conveying assembly 7 for conveying the plugs 41 into the placing tube 42, wherein the conveying assembly 7 comprises a conveying belt 71 for conveying the plugs 41, a conveying table 72 for placing the conveying belt 71 and a rotating motor 73; the conveying table 72 is positioned on the constant volume platform 1; the rotating motor 73 is positioned on the conveying table 72, and the rotating motor 73 is used for driving the conveying belt 71 to move; when the rotary motor 73 works, the rotary motor 73 drives the conveyor belt 71 to move, so that the plug 41 is driven to move in a direction approaching to the placing pipe 42 until the plug 41 is conveyed into the annular groove 421; the cross section of the ejector rod 43 is circular, and the radius of the circular shape is the same as the radius of the notch of the annular groove 421; when the plunger 43 is inserted into the annular groove 421, the plunger 43 restricts the plug 41 from entering the annular groove 421.
Through the scheme: by arranging the conveying assembly 7, the stopper 41 is placed on the conveying belt 71, and when the rotating motor 73 works, the rotating motor 73 drives the conveying belt 71 to move, so that the stopper 41 moves towards the direction close to the placing pipe 42 until the stopper 41 enters the annular groove 421 of the placing pipe 42, and the stopper 41 is convenient to be inserted into a volumetric flask subsequently; when the ejector rod 43 pushes the plug 41 in the annular groove 421 to enter the volumetric flask, the ejector rod 43 plays a limiting role, and at the moment, the plug 41 positioned on the conveyor belt 71 cannot enter the annular groove 421, so that the plug 41 is prevented from being contacted with the plug 41 to cause damage; when the stopper 41 originally located in the annular groove 421 is inserted into the volumetric flask, the ejector rod 43 returns to the initial position, at this time, no stopper 41 is located in the annular groove 421, and the ejector rod 43 does not play a limiting role any more, at this time, the stopper 41 located on the conveyor belt 71 can enter the annular groove 421, so that the subsequent use is facilitated.
As an improved embodiment, the plug 41 comprises a plug head 411 and a plug body 412 connected with the plug head 411, wherein the plug body 412 is used for being inserted into a volumetric flask; the mass of the plug 411 is larger than that of the plug body 412, the cross section of the plug 411 is square, the cross section of the plug body 412 is round, and the diameter length of the round is equal to the side length of the square; the conveyor 71 comprises a first conveyor 71171 and a second conveyor 71271, the first conveyor 71171 being located on a side of the conveyor table 72 facing away from the placement tube 42; the rotating motor 73 includes a first rotating motor 73173 and a second rotating motor 73273, the first rotating motor 73173 is used for driving the first conveyor belt 71171 to move, the second rotating motor 73273 is used for driving the second conveyor belt 71271 to move, and meanwhile, the conveying speed of the second conveyor belt 71271 is greater than that of the first conveyor belt 71171; a gap exists between the first conveyor 71171 and the second conveyor 71271, and the gap length is greater than the length of the plug 411 and less than the length of the plug body 412; the conveying table 72 is provided with a first groove 45, and the first groove 45 is located between the first conveying belt 71171 and the second conveying belt 71271.
Through the technical scheme: the plug body 412 in the plug 41 is used for being inserted into the volumetric flask, the plug 411 is convenient for an experiment experimenter to hold, and due to the different shapes and sizes of the plug 411 and the plug body 412, when the plug 41 is conveyed by the conveyor belt 71, the plug body 412 needs to be oriented to the side close to the placing tube 42, so that the plug body 412 can be accurately inserted into the volumetric flask for subsequent oscillation operation; when the plug 411 faces to the side close to the placing tube 42, the plug body 412 cannot be inserted into the volumetric flask, so that the subsequent oscillation operation cannot be performed, i.e. the whole volumetric process cannot be completed, which means that the volumetric failure; to avoid this, the conveyor 71 of the present invention includes a first conveyor 71171 and a second conveyor 71271, with a gap between the first conveyor 71171 and the second conveyor 71271; when the plug 41 is conveyed, when the plug 41 is placed in a manner that the plug body 412 faces to the side close to the placing pipe 42, as the gap length between the first conveyor belt 71171 and the second conveyor belt 71271 is larger than the plug 411 length and smaller than the plug body 412 length, and meanwhile, the mass of the plug 411 is larger than the mass of the plug body 412 and the conveying speed of the second conveyor belt 71271 is larger than the conveying speed of the first conveyor belt 71171, the plug 41 can enter the second conveyor belt 71271 from the first conveyor belt 71171 even if a gap exists between the first conveyor belt 71171 and the second conveyor belt 71271, and then is conveyed into the placing pipe 42, and the whole constant volume process is ensured to be continuously carried out; when the plug 41 is placed in such a way that the plug 411 faces the side close to the placement tube 42, the plug 41 cannot be conveyed from the first conveyor 71171 to the second conveyor 71271 of the conveyor 71 but falls directly into the first groove 45, so that the incorrect placement is removed, the accuracy of volume metering is ensured, and each volume metering of the invention can be successfully performed as much as possible.
As an improved specific embodiment, a sliding block 46 for bearing the plug 41 is arranged at the bottom of the first groove 45, the sliding block 46 is slidably connected with the first groove 45, the moving direction of the sliding block 46 is close to or far from the constant volume platform 1, the sliding block 46 is fixedly connected with an output shaft of a second telescopic motor 47, and the second telescopic motor 47 is used for driving the sliding block 46 to move towards the notch direction of the first groove 45; the conveying table 72 is provided with a fixed column 48, the fixed column 48 is provided with a swinging assembly 8 for conveying the plugs 41 on the sliding blocks 46 to the second conveying belt 71271, and the swinging assembly 8 comprises a rotating column 81, a swinging block 82 and a working motor 83; the rotating column 81 is rotationally connected with the fixed column 48, the working motor 83 is positioned on the fixed column 48, and an output shaft of the working motor 83 is fixedly connected with the rotating column 81; the swinging block 82 is connected with the rotating column 81 through a connecting column 84, and the swinging block 82 is used for driving the plug 41 on the sliding block 46 to move.
Through the technical scheme: by being provided with the sliding block 46, the sliding block 46 is positioned at the bottom of the first groove 45; when the misplaced plug 41 falls into the first groove 45, the plug 41 eventually falls onto the slider 46; to increase resource utilization, plugs 41 in first grooves 45 are returned to second conveyor 71271; according to the invention, the second telescopic motor 47 is arranged, when the second telescopic motor 47 works, the second telescopic motor 47 drives the sliding block 46 to move towards the direction close to the notch of the first groove 45, and the plug 41 moves along with the sliding block until the sliding block 46 moves to a certain position; at this time, only the working motor 83 is required to work, after the working motor 83 works, the rotating column 81 fixedly connected with the output shaft of the working motor 83 rotates, at this time, the swinging block 82 moves along with the working motor, and in the process of the swinging block, the swinging block 82 contacts with the plug body 412 of the plug 41, so as to drive the plug 41 to move, and the plug 41 returns to the second conveyor 71271, so that the second conveyor 71271 can convey the plug 41 into the placing tube 42, and resources are effectively utilized. Preferably, a layer of buffer pad can be paved on the sliding block 46, and the buffer pad is made of rubber and has certain elasticity, so that damage caused when the plug 41 falls onto the sliding block 46 is avoided.
As a modified specific embodiment, the sliding block 46 is provided with a first control assembly 9 for controlling the second telescopic motor 47, the first control assembly 9 comprises a gravity sensor 91 and a second controller 92, the gravity sensor 91 is positioned on the sliding block 46, the second controller 92 is used for controlling the second telescopic motor 47, and the gravity sensor 91 is electrically connected with the second controller 92; when the plug 41 is positioned on the sliding block 46, the gravity sensor 91 sends out a signal, and the second controller 92 controls the second telescopic motor 47 to work, so that the sliding block 46 is driven to move towards the direction approaching to the notch of the first groove 45; when the stopper 41 is not on the slider 46, the gravity sensor 91 sends a signal, and the second controller 92 controls the second telescopic motor 47 to operate, so that the slider 46 is restored to the original position.
Through the technical scheme: by arranging the first control component 9, when the plug 41 falls onto the sliding block 46, the gravity sensor 91 sends out a signal, and the second controller 92 controls the second telescopic motor 47 to work, so that the sliding block 46 moves towards the notch of the first sliding groove 241 until the sliding block 46 is moved to a proper position, thereby facilitating the driving of the swinging component 8, and enabling the plug 41 to return to the second conveyor 71271; when the plug 41 returns to the second conveyor 71271, the sliding block 46 returns to the initial position under the driving of the second telescopic motor 47, so as to facilitate the next operation.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (5)
1. An intelligent automatic constant volume system, which is characterized in that: comprises a constant volume platform (1), a placing mechanism (2), a dripping mechanism (3), a covering mechanism (4) and an oscillating mechanism (5) for oscillating a volumetric flask; the placing mechanism (2) is used for placing a volumetric flask, and the dripping mechanism (3) is used for dripping a proper amount of water into the volumetric flask; the placing mechanism (2), the dropping mechanism (3), the covering mechanism (4) and the oscillating mechanism (5) are all distributed on the constant volume platform (1); the placing mechanism (2) comprises a rotary table (21) which is rotationally connected with the constant volume platform (1) and a first motor (22) which is used for driving the rotary table (21) to rotate; the rotary table (21) is fixedly connected with an output shaft of the first motor (22), and a placing frame (23) for placing the volumetric flask is arranged on the rotary table (21); the turntable (21) is also provided with a fixed plate (24), and the fixed plate (24) is provided with a lifting assembly (6) for lifting the placing frame (23);
The dropping mechanism (3) comprises a dropping device (31), a first controller (32) for controlling the opening and closing of the dropping device (31) and a liquid level sensor (33) for calculating the dropping amount; the liquid level sensor (33) is in communication connection with the first controller (32); when the first controller (32) receives an electric signal from the liquid level sensor (33), the first controller controls the drip feeder (31) to drip a proper amount of water into the volumetric flask;
The covering mechanism (4) comprises a plug (41), a placing pipe (42) for placing the plug (41) and a push rod (43) for driving the plug (41) to move downwards; the placing pipe (42) is arranged above the constant volume platform (1), an annular groove (421) is formed in the placing pipe (42), the plug (41) is arranged in the annular groove (421), and a limiting component (44) used for limiting the plug (41) to slide out of the annular groove (421) is arranged on one side, close to the constant volume platform (1), of the annular groove (421); the limiting assembly (44) comprises a baffle (441) and a torsion spring (442), the baffle (441) is rotationally connected with the inner wall of the annular groove (421), one end of the torsion spring (442) is connected with the inner wall of the annular groove (421), the other end of the torsion spring (442) is connected with the baffle (441), and the torsion spring (442) is used for keeping the baffle (441) to limit the plug (41) to slide downwards; the ejector rod (43) is positioned at one side of the annular groove (421) away from the constant volume platform (1), the ejector rod (43) is in sliding connection with the annular groove (421), the sliding direction of the ejector rod (43) is close to or far away from the constant volume platform (1), and one end of the ejector rod (43) away from the baffle (441) is fixedly connected with an output shaft of the first telescopic motor (431); when the ejector rod (43) moves to one side close to the constant volume platform (1), the ejector rod (43) is in contact with the plug (41), and then the plug (41) is driven to move downwards until the plug (41) plugs the volumetric flask;
The covering mechanism (4) further comprises a conveying assembly (7) for conveying the plugs (41) into the placing tube (42), wherein the conveying assembly (7) comprises a conveying belt (71) for conveying the plugs (41), a conveying table (72) for placing the conveying belt (71) and a rotating motor (73); the conveying table (72) is positioned on the constant volume platform (1); the rotating motor (73) is positioned on the conveying table (72), and the rotating motor (73) is used for driving the conveying belt (71) to move; when the rotary motor (73) works, the rotary motor (73) drives the conveying belt (71) to move, so that the plug (41) is driven to move towards the direction close to the placing pipe (42) until the plug (41) is conveyed into the annular groove (421); the cross section of the ejector rod (43) is circular, and the radius of the circular shape is the same as the radius of a notch of the annular groove (421); when the ejector rod (43) is inserted into the annular groove (421), the ejector rod (43) limits the plug (41) to enter the annular groove (421);
the plug (41) comprises a plug head (411) and a plug body (412) connected with the plug head (411), wherein the plug body (412) is used for being inserted into a volumetric flask; the mass of the plug head (411) is larger than that of the plug body (412), the cross section of the plug head (411) is square, the cross section of the plug body (412) is round, and meanwhile, the diameter length of the round is equal to the side length of the square; the conveyor belt (71) comprises a first conveyor belt (711) (71) and a second conveyor belt (712) (71), wherein the first conveyor belt (711) (71) is positioned on one side of the conveyor table (72) away from the placing tube (42); the rotating motor (73) comprises a first rotating motor (731) (73) and a second rotating motor (732) (73), the first rotating motor (731) (73) is used for driving the first conveyor belt (711) (71) to move, and the second rotating motor (732) (73) is used for driving the second conveyor belt (712) (71) to move, and meanwhile, the conveying speed of the second conveyor belt (712) (71) is larger than that of the first conveyor belt (711) (71); a gap exists between the first conveyor belt (711) (71) and the second conveyor belt (712) (71), and the gap length is larger than the length of the plug head (411) and smaller than the length of the plug body (412); the conveying table (72) is provided with a first groove (45), and the first groove (45) is positioned between the first conveying belt (711) (71) and the second conveying belt (712) (71).
2. An intelligent automated constant volume system according to claim 1, wherein: a first sliding groove (241) is formed in the fixed plate (24), the lifting assembly (6) is located in the first sliding groove (241), the lifting assembly (6) comprises two transmission gears (61), a transmission chain (62) connected to the transmission gears (61) and a driving motor (63), and an output shaft of the driving motor (63) is fixedly connected with one of the transmission gears (61); one side of the placing frame (23) facing the first sliding groove (241) is provided with a transmission piece (64), the transmission piece (64) is fixedly connected with the placing frame (23), and the transmission piece (64) is fixedly connected with a transmission chain (62).
3. An intelligent automated constant volume system according to claim 2, wherein: the transmission piece (64) comprises a transmission block (641) and a first sliding block (642) which is in sliding connection with the transmission block (641), the transmission block (641) is fixedly connected with the placement frame (23), and the first sliding block (642) is fixedly connected with the transmission chain (62); limiting grooves (643) are formed in the inner walls of the two sides of the transmission block (641), and limiting blocks (644) used for sliding in the limiting grooves (643) are arranged on the first sliding blocks (642).
4. An intelligent automated constant volume system according to claim 1, wherein: the bottom of the first groove (45) is provided with a sliding block (46) for bearing the plug (41), the sliding block (46) is in sliding connection with the first groove (45), the moving direction of the sliding block (46) is close to or far away from the constant volume platform (1), the sliding block (46) is fixedly connected with an output shaft of a second telescopic motor (47), and the second telescopic motor (47) is used for driving the sliding block (46) to move towards the notch direction of the first groove (45); the conveying table (72) is provided with a fixed column (48), the fixed column (48) is provided with a swinging assembly (8) for conveying a plug (41) on the sliding block (46) to a second conveying belt (712) (71), and the swinging assembly (8) comprises a rotating column (81), a swinging block (82) and a working motor (83); the rotary column (81) is rotationally connected with the fixed column (48), the working motor (83) is positioned on the fixed column (48), and an output shaft of the working motor (83) is fixedly connected with the rotary column (81); the swinging block (82) is connected with the rotating column (81) through the connecting column (84), and the swinging block (82) is used for driving the plug (41) on the sliding block (46) to move.
5. The intelligent automated volumetric system of claim 4, wherein: the sliding block (46) is provided with a first control component (9) for controlling the second telescopic motor (47), the first control component (9) comprises a gravity sensor (91) and a second controller (92), the gravity sensor (91) is positioned on the sliding block (46), the second controller (92) is used for controlling the second telescopic motor (47), and the gravity sensor (91) is electrically connected with the second controller (92); when the plug (41) is positioned on the sliding block (46), the gravity sensor (91) sends out a signal, and the second controller (92) controls the second telescopic motor (47) to work, so that the sliding block (46) is driven to move towards the direction approaching to the notch of the first groove (45); when the plug (41) is not on the sliding block (46), the gravity sensor (91) sends out a signal, and the second controller (92) controls the second telescopic motor (47) to work, so that the sliding block (46) is restored to the initial position.
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| CN201910131620.1A CN109724665B (en) | 2019-02-22 | 2019-02-22 | Intelligent automatic constant volume system |
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| CN201910131620.1A CN109724665B (en) | 2019-02-22 | 2019-02-22 | Intelligent automatic constant volume system |
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| CN112505341A (en) * | 2020-12-15 | 2021-03-16 | 宁波然诺科学仪器有限公司 | Full-automatic oil smoke tester |
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