CN113334733A

CN113334733A - Plasticizing section pin exhaust extruder with adjustable vacuum section flow

Info

Publication number: CN113334733A
Application number: CN202110417633.2A
Authority: CN
Inventors: 姚央军; 应再兴; 徐荣国
Original assignee: Zhejiang Baina Rubber Equipment Co ltd
Current assignee: Zhejiang Baina Rubber Equipment Co ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-09-03

Abstract

The invention belongs to the field of extruders, in particular to a vacuum section flow-adjustable plasticizing section pin exhaust extruder, comprising a frame, a first casing, a second casing, a screw, an exhaust component and a plasticizer. The first shell is installed on the top of the rack; the top of the first shell is provided with a feeding slot; the second shell is fixed on the side of the first shell; the screw is arranged on the first shell Inside the casing and the second casing; the end of the screw rod is installed in the first casing; by setting the adjusting ring, the screw and the adjusting rod, and relying on the above-mentioned parts to cooperate with each other, the size of the shear groove section can be adjusted so that the The cross-section of the shearing groove matches the extrusion performance of the material, so there is no need to replace the screw according to the material alone.

Description

Plasticizing section pin exhaust extruder with adjustable vacuum section flow

Technical Field

The invention relates to the field of extruders, in particular to a vacuum section flow adjustable plasticizing section pin exhaust extruder.

Background

The extruder is one of machines for producing plastic rubber, and can be roughly classified into a twin-screw extruder, a single-screw extruder, a multi-screw extruder, and a non-screw extruder.

In the prior art, an extruder can be divided into a feeding section, a plasticizing section, an exhaust section, an air exhaust section and an extrusion section, materials are conveyed from the feeding section to the extrusion section by a screw rod, the materials are extruded and molded by the extrusion section, the plasticizing section melts the materials by high temperature, an exhaust end discharges air in the materials by a shearing groove and the screw rod, and the air exhaust section extracts air discharged by the materials by a vacuum machine, so that the physical properties of the materials can be enhanced, but the types of the materials are various, the viscosity, the hardness and the extrusion properties of different materials are different, the area of the shearing groove of the existing extruder is fixed, the area of the shearing groove cannot be adjusted according to the materials, the applicability is poor, the materials with good extrusion properties can pass through the shearing groove in large quantity, so that an air exhaust port of the vacuum machine is blocked, the materials with poor extrusion properties can pass through the shearing groove in small quantity, and the extrusion section is further caused to lack of glue, therefore, the vacuum section flow adjustable pin exhaust extruder for the plasticizing section is provided for solving the problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the area of a shear groove of the conventional extruder is fixed, the area of the shear groove cannot be adjusted according to materials, the applicability is poor, the materials with good extrusion performance can pass through the shear groove in a large amount, so that an air suction opening of a vacuum machine is blocked, the materials with poor extrusion performance can pass through the shear groove in a small amount, and further, the extrusion section is short of glue.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a vacuum section flow adjustable plasticizing section pin exhaust extruder which comprises a frame, a first shell, a second shell, a screw, an exhaust assembly and a plasticizing assembly, wherein the frame is provided with a first end and a second end; the first shell is mounted at the top of the rack; a feeding groove is formed in the top of the first shell; the second shell is fixedly connected to the side surface of the first shell; the screw is arranged in the first shell and the second shell; the end part of the screw rod is arranged in the first shell; the exhaust assembly is arranged on one side of the second shell, which is far away from the first shell; the plasticizing component is arranged on the surface of the second shell; an air exhaust device is arranged on one side of the exhaust assembly, which is far away from the second shell; the side surface of the air exhaust device is provided with an extrusion device; the exhaust assembly includes an adjustment ring; the adjusting ring is fixedly connected to one side of the second shell, which is far away from the first shell; the screw rod penetrates through the adjusting ring; a shearing groove is formed in the inner side wall of the adjusting ring; one side of the shearing groove, which is far away from the screw rod, is provided with a group of first thread grooves; the first thread grooves are arranged on the side surfaces of the shearing grooves in a surrounding array manner; a screw is connected in the first thread groove through threads; a shearing rod is fixedly connected to one end of the screw, which is positioned in the first thread groove; the shearing rod penetrates through the wall body of the first thread groove close to the shearing groove side and is connected with the wall body in a sliding mode, the length of the shearing rod can be adjusted through the rotating screw, the size of the cross section of the shearing groove is adjusted, the cross section of the shearing groove is matched with the material extrusion performance, the screw rod does not need to be replaced independently according to materials, the applicability is high, the production of a factory is facilitated, and the stability of the cross section of a product is improved.

Preferably, the plasticizing component comprises a pin; a group of annular cavities is formed in the surface of the second shell; a first sealing cover plate and a group of second sealing cover plates are bolted on one side of the annular cavity, which is far away from the screw rod; the first sealing cover plate is provided with a transfusion hole and a liquid outlet hole; a group of second thread grooves are formed in the side wall of the second shell; the pin is connected in the second thread groove through threads; an annular groove is formed in the surface of the screw rod at a position corresponding to the pin; the end part of the pin is inserted into the annular groove, and the contact area of the pin and the material can be increased, so that the melting speed of the material can be increased.

Preferably, a feeding hopper is fixedly connected to the top of the feeding groove; a first motor is fixedly connected to the side wall of the bottom of the feeding hopper; the output end of the first motor is fixedly connected with a first crushing rod; the end part of the first crushing rod penetrates through the side wall of the feeding hopper and is rotatably connected with the feeding hopper; one end of the first crushing rod, which is far away from the first motor, is fixedly connected with a first gear; a second crushing rod is arranged on the side surface of the first crushing rod; two ends of the second crushing rod penetrate through the side wall of the feeding hopper and are rotatably connected with the feeding hopper; a second gear is fixedly connected to one end, far away from the first motor, of the second crushing rod; the first gear and the second gear are meshed with each other; first blade and second blade are fixed connection respectively on first broken pole and the second broken pole, can smash the material of conglomeration through this setting to can make more abundant of material plastify.

Preferably, the side surface of the feeding hopper is fixedly connected with an absorbing assembly; the suction assembly comprises a suction shell and a collection unit; the suction shell is fixedly connected to the side surface of the feeding hopper; the bottom end of the suction shell is fixedly connected with a collecting shell; the collecting shell is fixedly connected with the feeding hopper; a cavity is formed in the collecting shell; the bottom of the collecting shell is fixedly connected with an exhaust pipe; a housing is fixedly connected to one side of the suction shell, which is far away from the feeding hopper; a second motor is fixedly connected to the inner side wall of the top of the housing; the output end of the second motor is fixedly connected with a first rotating shaft; the first rotating shaft penetrates through the side wall of the suction shell and is connected with the side wall in a rotating mode; one end of the first rotating shaft, which is positioned in the suction shell, is fixedly connected with a fan blade; the collecting unit is arranged inside the collecting shell, and powdery materials scattered by air can be sucked through the collecting unit, so that the physical health of workers is protected.

Preferably, the collecting unit comprises a fixed frame; the fixing frame is hinged on the inner side wall of one side of the collecting box, which is far away from the feeding hopper; the fixing frame is obliquely arranged; the top of the fixed frame is fixedly connected with a filter screen; the top side of the fixed frame is fixedly connected with a first magnetic strip; a second magnetic strip is fixedly connected to the top side of the cavity at a position corresponding to the first magnetic strip; an elastic rope is fixedly connected between the top side of the fixing frame and the side wall of the cavity; a material guide groove is formed in the bottom of one side, close to the feeding hopper, of the cavity; the bottom side of the fixed frame is fixedly connected with a wind-shielding cloth; the bottom of the wind-shield cloth is fixedly connected with the bottom side of the cavity; the wind shield is arranged on one side, close to the feeding hopper, of the fixing frame, and materials can be recycled through the arrangement, so that waste of the materials can be reduced.

Preferably, a second rotating shaft is rotatably connected to the inner side wall of the bottom of the cavity; a cam is fixedly connected to the second rotating shaft; a third rotating shaft is arranged on one side of the cavity far away from the feeding hopper; the third rotating shaft penetrates through the side wall of the cavity and is in rotating connection with the side wall of the cavity; a flexible shaft is fixedly connected between the second rotating shaft and the third rotating shaft; one end of the third rotating shaft, which is positioned outside the cavity, is fixedly connected with a first belt wheel; a second belt wheel is fixedly connected to the first rotating shaft; the belt is sleeved on the first belt wheel and the second belt wheel, and the falling speed of materials can be improved through the arrangement, so that the air quantity of air flow entering the feeding hopper is reduced.

The invention has the advantages that:

1. according to the invention, by arranging the adjusting ring, the screw and the adjusting rod and depending on the mutual matching of the parts, the size of the section of the shearing groove can be adjusted, so that the section of the shearing groove is matched with the material extrusion performance, the screw rod does not need to be replaced independently according to the material, the applicability is high, the production of a factory is facilitated, and the stability of the section of a product can be improved.

2. According to the invention, the feeding hopper, the first crushing rod, the second crushing rod, the first motor, the first gear, the second gear, the first blade and the second blade are arranged, and the parts are matched with each other, so that agglomerated materials can be crushed, and the problem that the materials cannot be thoroughly plasticized is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of a first sealing cover structure according to a first embodiment;

FIG. 2 is a schematic structural diagram of a pin according to the first embodiment;

FIG. 3 is a schematic view of a hopper according to the first embodiment;

FIG. 4 is a schematic view showing the structure of a second crushing rod according to the first embodiment;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

FIG. 6 is an enlarged view of a portion of FIG. 2 at B;

FIG. 7 is an enlarged view of a portion of FIG. 2 at C;

FIG. 8 is an enlarged view of a portion of FIG. 3 at D;

FIG. 9 is a schematic view of a cam structure according to the first embodiment;

fig. 10 is a schematic structural view of the mesh-shaped shield according to the second embodiment.

In the figure: 11. a frame; 12. a first housing; 13. a second housing; 14. a screw; 15. a feeding groove; 21. an adjusting ring; 22. shearing a groove; 23. a first thread groove; 24. a screw; 25. a shear bar; 31. an annular cavity; 32. a first sealing cover plate; 33. a second sealing cover plate; 34. a transfusion hole; 35. a liquid outlet hole; 36. a pin; 37. an annular groove; 41. feeding into a hopper; 42. a first motor; 43. a first crushing bar; 44. a second crushing bar; 45. a first gear; 46. a second gear; 47. a first blade; 48. a second blade; 51. a suction housing; 52. collecting the shells; 53. an exhaust pipe; 54. a housing; 55. a second motor; 56. a first rotating shaft; 57. a fan blade; 61. a fixing frame; 62. a filter screen; 63. a first magnetic strip; 64. a second magnetic strip; 65. an elastic cord; 66. a material guide chute; 67. a wind-blocking cloth; 71. a second rotating shaft; 72. a cam; 73. a third rotating shaft; 74. a first pulley; 75. a second pulley; 8. a mesh-shaped shield.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-9, a vacuum-section flow-adjustable pin degassing extruder for a plasticizing section includes a frame 11, a first housing 12, a second housing 13, a screw 14, a degassing assembly, and a plasticizing assembly; the first shell 12 is mounted on the top of the frame 11; a feeding groove 15 is formed in the top of the first shell 12; the second shell 13 is fixedly connected to the side surface of the first shell 12; the screw 14 is arranged inside the first shell 12 and the second shell 13; the end of the screw 14 is arranged in the first shell 12; the exhaust assembly is arranged on one side of the second shell 13 far away from the first shell 12; the plasticizing component is arranged on the surface of the second shell 13; an air extracting device is arranged on one side of the exhaust assembly, which is far away from the second shell 13; the side surface of the air exhaust device is provided with an extrusion device; the exhaust assembly includes an adjusting ring 21; the adjusting ring 21 is fixedly connected to the side of the second housing 13 away from the first housing 12; the screw 14 penetrates through the adjusting ring 21; a shearing groove 22 is formed in the inner side wall of the adjusting ring 21; a group of first thread grooves 23 are formed in one side, away from the screw 14, of the shearing groove 22; the first thread grooves 23 are arranged on the side surfaces of the shearing grooves 22 in a surrounding array; a screw 24 is connected in the first thread groove 23 through threads; a shearing rod 25 is fixedly connected to one end of the screw 24 positioned in the first thread groove 23; the shearing rod 25 penetrates through the wall body of the first thread groove 23 close to one side of the shearing groove 22 and is connected with the wall body in a sliding mode; in the prior art, a motor is installed on the first housing 12, and gears are fixedly connected to the screw 14 and the output end of the motor; the two gears are meshed with each other, so that the screw 14 is driven by the motor to rotate, the material is poured into the first shell 12 through the feeding groove 15, the material is transported to the second housing 13 by means of the screw 14, melted by means of the plasticizing assembly, and then transported into the adjusting ring 21, the screw 14 is matched with the shearing groove 22 and the shearing rod 25, so that the materials are sheared, thereby discharging the air in the raw material, by rotating the screw 24, whereby the length of the shear bar 25 can be adjusted, thereby adjusting the size of the section of the shear groove 22, so that the section of the shear groove 22 is matched with the material extrusion performance, thereby the screw 14 does not need to be replaced independently according to the materials, the applicability is high, the production of factories is convenient, meanwhile, the stability of the section of the product is improved, the exhausted gas is extracted by the air extraction device, and the material is extruded by the extrusion device and the screw 14.

The plasticizing component includes a pin 36; a group of annular cavities 31 are formed in the surface of the second shell 13; a first sealing cover plate 32 and a group of second sealing cover plates 33 are bolted on one side of the annular cavity 31 away from the screw 14; the first sealing cover plate 32 is provided with a transfusion hole 34 and a liquid outlet hole 35; a group of second thread grooves are formed in the side wall of the second shell 13; the pin 36 is connected in the second thread groove through threads; an annular groove 37 is formed in the surface of the screw 14 at a position corresponding to the pin 36; the end of the pin 36 is inserted into the annular groove 37; when using, liquid pipeline and infusion hole 34 and play liquid hole 35 rigid coupling, high temperature liquid enters into annular chamber 31 through infusion hole 34 in, then liquid flows out through going out liquid hole 35, heats second casing 13 through high temperature liquid to this heats the material in the second casing 13, can increase the area of contact with the material through pin 36, with this can improve the speed of melting of material.

A feeding hopper 41 is fixedly connected to the top of the feeding groove 15; a first motor 42 is fixedly connected to the side wall of the bottom of the feeding hopper 41; the output end of the first motor 42 is fixedly connected with a first crushing rod 43; the end part of the first crushing rod 43 penetrates through the side wall of the feeding hopper 41 and is rotatably connected with the side wall; a first gear 45 is fixedly connected to one end of the first crushing rod 43 far away from the first motor 42; the second crushing rod 44 is arranged on the side surface of the first crushing rod 43; both ends of the second crushing rod 44 penetrate through the side wall of the feeding hopper 41 and are rotatably connected with the feeding hopper; a second gear 46 is fixedly connected to one end of the second crushing rod 44 far away from the first motor 42; the first gear 45 and the second gear 46 are meshed with each other; the first crushing rod 43 and the second crushing rod 44 are fixedly connected with a first blade 47 and a second blade 48 respectively; in the use, when powdery material takes place to receive the tide, the material can agglomerate, the length of second casing 13 is fixed, consequently, can lead to the unable complete plastify of agglomerated material central point department, when using, first motor 42 carries out work, first motor 42 drives first crushing pole 43 and rotates, first crushing pole 43 drives first gear 45 and rotates, first gear 45 drives second crushing pole 44 through second gear 46 and rotates, thereby make first blade 47 and second blade 48 rotate, smash the agglomerated material with this, thereby can make the plastify more abundant of material.

The side surface of the feeding hopper 41 is fixedly connected with an absorption assembly; the suction assembly includes a suction housing 51 and a collection unit; the suction shell 51 is fixedly connected to the side surface of the feeding hopper 41; the bottom end of the suction shell 51 is fixedly connected with a collecting shell 52; the collecting shell 52 is fixedly connected with the feeding hopper 41; a cavity is formed inside the collecting shell 52; the bottom of the collecting shell 52 is fixedly connected with an exhaust pipe 53; a housing 54 is fixedly connected to one side of the suction shell 51 far away from the feeding hopper 41; a second motor 55 is fixedly connected to the inner side wall of the top of the housing 54; a first rotating shaft 56 is fixedly connected to the output end of the second motor 55; the first rotating shaft 56 penetrates through the side wall of the suction housing 51 and is rotatably connected therewith; one end of the first rotating shaft 56 positioned in the suction shell 51 is fixedly connected with a fan blade 57; the collection unit is provided inside the collection case 52; when using, powdery material is when empting and smashing, the material is wafted and is scattered in the air into 41 tops of hopper, and then can harm the healthy of process personnel, when using, second motor 55 works, second motor 55 drives first pivot 56 and rotates, first pivot 56 drives flabellum 57 and rotates, rely on flabellum 57 to extract the air into 41 tops of hopper, these air can be inhaled and collect shell 52, can carry out the material in the filtered air through collecting the unit, then the air is discharged through blast pipe 53, blast pipe 53 bottom is installed outdoors, with this can protect the healthy of staff.

The collecting unit comprises a fixed frame 61; the fixing frame 61 is hinged on the inner side wall of the collecting box at one side far away from the feeding hopper 41; the fixing frame 61 is obliquely arranged; the top of the fixed frame 61 is fixedly connected with a filter screen 62; a first magnetic strip 63 is fixedly connected to the top side of the fixed frame 61; a second magnetic strip 64 is fixedly connected to the top side of the cavity at a position corresponding to the first magnetic strip 63; an elastic rope 65 is fixedly connected between the top side of the fixing frame 61 and the side wall of the cavity; a material guide groove 66 is formed in the bottom of the cavity close to one side of the material inlet hopper 41; the bottom side of the fixed frame 61 is fixedly connected with a wind-shielding cloth 67; the bottom of the wind-shielding cloth 67 is fixedly connected with the bottom side of the cavity; the wind-proof cloth 67 is arranged on one side of the fixed frame 61 close to the feeding hopper 41; when using, can filter the air that flabellum 57 sucked through filter screen 62, filter screen 62 sets up for the slope, can pile up in filter screen 62 lower department with this material, when the material piles up the certain degree, first magnetic strip 63 and second magnetic strip 64 take place the separation, then stretch cord 65, the material can roll into baffle box 66 under the effect of air current and gravity in, later get into hopper 41 through baffle box 66 in, with this recovery of accomplishing the material, thereby reduce the waste to the material, after the material clearance is accomplished, cord 65 contracts, with this drive fixed frame 61 and rotate reset, fix fixed frame 61 through first magnetic strip 63 and second magnetic strip 64, the wind-blocking cloth 67 that the bottom set up can avoid the air current to enter into in baffle box 66 from filter screen 62 bottom, with this material of avoiding the air current to blow and fly away in the baffle box 66.

A second rotating shaft 71 is rotatably connected to the inner side wall of the bottom of the cavity; a cam 72 is fixedly connected to the second rotating shaft 71; a third rotating shaft 73 is arranged on one side of the cavity far away from the feeding hopper 41; the third rotating shaft 73 penetrates through the side wall of the cavity and is rotatably connected with the side wall of the cavity; a flexible shaft is fixedly connected between the second rotating shaft 71 and the third rotating shaft 73; one end of the third rotating shaft 73, which is positioned outside the cavity, is fixedly connected with a first belt pulley 74; a second belt wheel 75 is fixedly connected to the first rotating shaft 56; a belt is sleeved on the first belt wheel 74 and the second belt wheel 75; when using, first pivot 56 drives second band pulley 75 and rotates, second band pulley 75 drives first band pulley 74 through the belt and rotates, then second pivot 71 drives third pivot 73 through the flexible axle and rotates, third pivot 73 drives cam 72 and rotates, when fixed frame 61 falls, cam 72 can strike fixed frame 61 bottom side to this makes the material shake off on the filter screen 62, can improve the speed that drops of material through this setting, thereby reduce the air current and enter into the interior amount of wind of hopper 41.

Example two

Referring to fig. 10, in a first comparative example, as another embodiment of the present invention, a mesh-shaped cover 8 is fixed to an opening at the top of the suction casing 51; in use, mosquitoes and other foreign objects are prevented from entering the suction shell 51 by the mesh-like cover 8.

According to the working principle, a liquid pipeline is fixedly connected with a liquid conveying hole 34 and a liquid outlet hole 35, a motor is installed on the first shell 12, and gears are fixedly connected with the output ends of the screw 14 and the motor; the two gears are meshed with each other, so that the screw 14 is driven by the motor to rotate, materials are poured into the first shell 12 through the feeding groove 15, the materials are conveyed to the second shell 13 through the screw 14, high-temperature liquid enters the annular cavity 31 through the liquid conveying hole 34, then the liquid flows out through the liquid outlet hole 35, the second shell 13 is heated through the high-temperature liquid, the materials in the second shell 13 are heated, the contact area between the materials and the materials can be increased through the pin 36, the melting speed of the materials can be improved, then the materials are conveyed into the adjusting ring 21, the materials are sheared through the cooperation of the screw 14, the shearing groove 22 and the shearing rod 25, air in the raw materials is discharged, the length of the shearing rod 25 can be adjusted through rotating the screw 24, the size of the section of the shearing groove 22 is adjusted, and the section of the shearing groove 22 is matched with the extrusion performance of the materials, therefore, the screw 14 does not need to be replaced independently according to the materials, the applicability is high, the production of a factory is convenient, the stability of the section of a product is improved, exhausted gas is extracted through the air extractor, the materials are extruded through the extruding device and the screw 14, when the powdery materials are wet, the materials are agglomerated, the length of the second shell 13 is fixed, so that the center position of the agglomerated materials cannot be completely plasticized, when the device is used, the first motor 42 works, the first motor 42 drives the first crushing rod 43 to rotate, the first crushing rod 43 drives the first gear 45 to rotate, the first gear 45 drives the second crushing rod 44 to rotate through the second gear 46, the first blade 47 and the second blade 48 rotate to crush the agglomerated materials, the plasticization of the materials can be more sufficient, and when the powdery materials are poured and crushed, when the material is used, the second motor 55 works, the second motor 55 drives the first rotating shaft 56 to rotate, the first rotating shaft 56 drives the fan blades 57 to rotate, the fan blades 57 are used for extracting air fed into the top of the material hopper 41, the air is sucked into the collecting shell 52 and then is exhausted through the exhaust pipe 53, the air sucked by the fan blades 57 can be filtered through the filter screen 62, the filter screen 62 is arranged obliquely, so that the material can be stacked at the lower part of the filter screen 62, when the material is stacked to a certain degree, the first magnetic strip 63 and the second magnetic strip 64 are separated, then the elastic rope 65 is stretched, the material can roll into the guide chute 66 under the action of air flow and gravity, then the material enters the material hopper 41 through the guide chute 66, the recovery of the material is completed, and the waste of the material is reduced, after the materials are cleaned, the elastic rope 65 contracts to drive the fixing frame 61 to rotate and reset, the fixed frame 61 is fixed by the first magnetic strip 63 and the second magnetic strip 64, the wind-blocking cloth 67 arranged at the bottom can prevent the airflow from entering the material guiding groove 66 from the bottom of the filter screen 62, so as to prevent the airflow from blowing away the material in the material guiding groove 66, in use, the first shaft 56 rotates the second pulley 75, the second pulley 75 rotates the first pulley 74 via a belt, then the second rotating shaft 71 drives the third rotating shaft 73 to rotate through the flexible shaft, the third rotating shaft 73 drives the cam 72 to rotate, when the fixed frame 61 falls down, the cam 72 will strike the bottom side of the fixing frame 61, so that the material on the filter screen 62 can be shaken off, the falling speed of the materials can be improved through the arrangement, so that the air quantity of the air flow entering the feeding hopper 41 is reduced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. A vacuum section flow-adjustable plasticizing section pin exhaust extruder, characterized in that it comprises a frame (11), a first casing (12), a second casing (13), a screw (14) , exhaust assembly and plasticizing assembly; the first shell (12) is installed on the top of the frame (11); the top of the first shell (12) is provided with a feeding slot (15); the second shell (12) The casing (13) is fixed on the side surface of the first casing (12); the screw rod (14) is arranged inside the first casing (12) and the second casing (13); the end of the screw rod (14) is installed in the first casing (12); the exhaust assembly is arranged on the side of the second casing (13) away from the first casing (12); the plasticizing assembly is arranged on the second casing (13) ) surface; an air extraction device is installed on the side of the exhaust assembly away from the second housing (13); an extrusion device is installed on the side of the air extraction device;

The exhaust assembly comprises an adjustment ring (21); the adjustment ring (21) is fixedly connected to the side of the second casing (13) away from the first casing (12); the screw rod (14) penetrates through the adjustment ring (21); a shear groove (22) is formed on the inner side wall of the adjusting ring (21); a group of first thread grooves (23) are formed on the side of the shear groove (22) away from the screw (14); The first thread grooves (23) are arranged in a surrounding array on the side of the shear groove (22); the first thread grooves (23) are threadedly connected with screws (24); the screws (24) are located in the first thread grooves One end in the (23) is fixed with a shear rod (25); the shear rod (25) penetrates the wall of the first threaded groove (23) close to the side of the shear groove (22) and is slidably connected therewith.

2 . The plasticizing section pin exhaust extruder with adjustable vacuum section flow according to claim 1 , wherein: the plasticizing component comprises a pin (36); the second casing (13) A group of annular cavities (31) are opened on the surface; a first sealing cover plate (32) and a group of second sealing cover plates (33) are bolted on the side of the annular cavity (31) away from the screw (14); the The first sealing cover plate (32) is provided with an infusion hole (34) and a liquid outlet hole (35); a group of second thread grooves are formed on the side wall of the second housing (13); the pin (36) passes through The thread is connected in the second thread groove; an annular groove (37) is formed at the corresponding position of the surface of the screw (14) and the pin (36); the end of the pin (36) is inserted into the annular groove (37).

3. A vacuum section flow-adjustable plasticizing section pin exhaust extruder according to claim 2, characterized in that: a feeding hopper (41) is fixedly connected to the top of the feeding trough (15); the A first motor (42) is fixedly connected to the side wall of the bottom of the feeding hopper (41); a first crushing rod (43) is fixedly connected to the output end of the first motor (42); the first crushing rod (43) The end penetrates into the side wall of the hopper (41) and is rotatably connected with it; the end of the first crushing rod (43) away from the first motor (42) is fixed with a first gear (45); the first crushing rod (43) A second crushing rod (44) is arranged on the side; both ends of the second crushing rod (44) penetrate into the side wall of the hopper (41) and are rotatably connected with it; the second crushing rod (44) is far away from A second gear (46) is fixedly connected to one end of the first motor (42); the first gear (45) and the second gear (46) mesh with each other; the first crushing rod (43) and the second crushing rod The first blade (47) and the second blade (48) are respectively fixed on the (44).

4. A vacuum section flow-adjustable plasticizing section pin exhaust extruder according to claim 3, characterized in that: a suction component is fixed on the side of the feeding hopper (41); the suction component includes a suction component. A shell (51) and a collection unit; the suction shell (51) is fixed on the side of the hopper (41); the bottom end of the suction shell (51) is fixed with a collection shell (52); the collection shell (52) ) is fixedly connected with the feeding hopper (41); the collecting shell (52) is provided with a cavity inside; the bottom of the collecting shell (52) is fixedly connected to the exhaust pipe (53); the suction shell (51) is far away from the feeding hopper A cover (54) is fixed on one side of the cover (41); a second motor (55) is fixed on the inner side wall of the top of the cover (54); the output end of the second motor (55) is fixed with a A first rotating shaft (56); the first rotating shaft (56) penetrates through the side wall of the suction casing (51) and is rotatably connected with it; one end of the first rotating shaft (56) located in the suction casing (51) is fixed with a fan Leaf (57); the collecting unit is arranged inside the collecting shell (52).

5. The plasticizing section pin exhaust extruder with adjustable vacuum section flow rate according to claim 4, characterized in that: the collecting unit comprises a fixed frame (61); the fixed frame (61) is hinged on the The collection box is on the inner side wall of the side away from the feeding hopper (41); the fixing frame (61) is inclined; the top of the fixing frame (61) is fixed with a filter screen (62); the fixing frame (61) A first magnetic strip (63) is fixedly connected to the top side; a second magnetic strip (64) is fixed to the position corresponding to the top side of the cavity and the first magnetic strip (63); the top side of the fixing frame (61) An elastic rope (65) is fixedly connected with the side wall of the cavity; a material guide groove (66) is provided at the bottom of the cavity close to the side of the feeding hopper (41); the bottom side of the fixing frame (61) is fixedly connected There is a windshield cloth (67); the bottom of the windshield cloth (67) is fixedly connected with the bottom side of the cavity; the windshield cloth (67) is arranged on the side of the fixing frame (61) close to the feeding hopper (41).

6. A vacuum section flow-adjustable plasticizing section pin exhaust extruder according to claim 5, characterized in that: a second rotating shaft (71) is rotatably connected to the inner side wall of the bottom of the cavity; A cam (72) is fixed on the second rotating shaft (71); a third rotating shaft (73) is arranged on the side of the cavity away from the feeding hopper (41); the third rotating shaft (73) penetrates through the side of the cavity A flexible shaft is fixed between the second rotating shaft (71) and the third rotating shaft (73); the end of the third rotating shaft (73) outside the cavity is fixed with a first pulley (74); a second pulley (75) is fixed on the first rotating shaft (56); a belt is sleeved on the first pulley (74) and the second pulley (75).