KR102003399B1 - Double side grinding apparatus capable of continuous processing - Google Patents

Abstract

Double head grinding device according to the present invention, the base plate; A part of which is seated on an upper surface of the base plate and mounted to be rotatable about a vertical center axis, and a plurality of through holes into which a base material can be inserted is arranged in a circle around the axis of rotation; A base material supply unit supplying a base material one by one to a through hole positioned on the rotating plate; A pair of grinding wheels covering the top and bottom of the portion of the rotary plate that is not seated on the base plate, and by rotating the pair of grinding wheels for grinding the top and bottom of the base material located between the pair of grinding wheels It includes; a grinding portion having a rotating motor.
Using the two-head grinding device according to the present invention, it is possible to continuously supply a plurality of base materials without a separate clamp or carrier, there is an advantage that can adjust the pressing force between the grinding wheel and the base material when an overload occurs.

Description

Double side grinding apparatus capable of continuous processing

The present invention relates to a double head grinding device capable of simultaneously grinding both sides of the base material, and more particularly, to a double head grinding device capable of stably processing a plurality of base materials.

Generally, the grinding device refers to a device for grinding a base material by rotating a grinding wheel, and is configured to rotate by grinding a grinding wheel in a state in which a base material is fixed on a table of the grinding device.

A grinding device, in which two grinding wheels are provided to correspond to each other, is called a double head grinding device. In general, the two-head grinding device is disposed so that the two grinding wheels face each other on both sides of the table, and is configured to grind and discharge the base material introduced between the two grinding wheels. In this case, a separate clamp or carrier is used to insert the base material between the two grinding wheels.In this case, when the base material is input and discharged using the clamp or the carrier, the internal structure becomes complicated and the input and discharge of the base material is complicated. It takes a lot of time and has the disadvantage of low productivity.

In addition, if the pressing force between the grinding wheel and the base material is excessively high, an overload may occur in the motor that rotates the grinding wheel, and the damage may occur in the conventional double head grinding device. There is a dimness in preventing damage to parts. Of course, stopping the operation of the two-head grinding machine in the event of overload can prevent component damage.However, when the operation of the two-head grinding machine is stopped and restarted, productivity is not only significantly reduced but also a lot of power is consumed. There is a problem that the manufacturing cost increases.

KR 10-2012-0117308 A

The present invention has been proposed to solve the above problems, it is possible to continuously supply a plurality of base materials without a separate clamp or carrier, to provide a double head grinding device that can adjust the pressing force between the grinding wheel and the base material when an overload occurs There is a purpose.

Double head grinding device according to the present invention for achieving the above object,

Base plate;

A part of which is seated on an upper surface of the base plate and mounted to be rotatable about a vertical center axis, and a plurality of through holes into which a base material can be inserted is arranged in a circle around the axis of rotation;

A base material supply unit supplying a base material one by one to a through hole positioned on the rotating plate;

A pair of grinding wheels covering the top and bottom of the portion of the rotary plate that is not seated on the base plate, and by rotating the pair of grinding wheels for grinding the top and bottom of the base material located between the pair of grinding wheels Grinding unit having a rotating motor;

It includes.

Further comprising a guide portion mounted between the base material supply portion and the grinding portion of the rotating plate to support the top and bottom of the base material inserted into the through hole of the rotating plate,

The guide part may include a guide pad covering a portion located between the base material supply part and the grinding part among the upper surfaces of the rotating plate, a fixed block fixed to be positioned above the guide pad, and a liftable structure coupled to the fixed block. And a pressing block for pressing the guide pad to the upper surface of the rotating plate.

The base plate is provided with a tilting portion capable of rotating inclined downward so as to be spaced apart from the bottom surface of the rotating plate,

The loading unit further includes a loading unit on which the base material discharged on the upper surface of the tilting unit is loaded.

The base material supply unit is fixed to one side of the base plate, and coupled to the fixed plate so as to be transported in the horizontal direction, the opening is formed at a point corresponding to the through hole when one side is transported to cover the upper surface of the rotating plate A transport plate, three or more fastening brackets coupled to the transport plate in a horizontally movable structure toward the center of the opening, and fixed to each fastening bracket so as to stand vertically to support a plurality of vertically stacked edges of the base material It includes three or more vertical rods.

The grinding unit rotates the grinding wheel while gradually moving the grinding wheel toward the base material to grind the base material, and if an overload occurs in the rotary motor until the overload of the rotary motor falls below a reference value. In the state where the movement of the grinding wheel is stopped, the rotating plate is idling one or more revolutions.

Using the two-head grinding device according to the present invention, it is possible to continuously supply a plurality of base materials without a separate clamp or carrier, there is an advantage that can adjust the pressing force between the grinding wheel and the base material when an overload occurs.

1 is a perspective view of a double head grinding device according to the present invention.
Figure 2 is a perspective view showing the internal structure of the double head grinding device according to the present invention.
3 and 4 are perspective views illustrating a structure in which the grinding part and the guide part are mounted on the rotating plate.
5 and 6 are a plan view and a bottom perspective view of a guide unit included in the double head grinding device according to the present invention.
7 and 8 are side views showing the operation of the tilting unit included in the double head grinding device according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a double head grinding device according to the present invention.

1 is a perspective view of a double head grinding device according to the present invention, Figure 2 is a perspective view showing the internal structure of the double head grinding device according to the present invention.

The double head grinding device according to the present invention is a device capable of simultaneously grinding both sides of the base material 10 by supplying the base material 10 between a pair of grinding wheels 410, without having a separate clamp or tray. ) Can be supplied one by one in order to increase productivity.

That is, the two-head grinding device according to the present invention, the base plate 100 is fixedly seated on the ground, and is mounted on the upper surface of the base plate 100 so as to be rotatable about a vertical central axis and the base material 10 A plurality of through holes 210 into which a plurality of through holes 210 can be inserted are arranged in a circle around a rotating shaft, and the base material 10 is supplied one by one to the through holes 210 positioned on the rotating plate 200. The base material supply part 300 and the grinding part 400 provided with the pair of grinding wheels 410 which cover the upper surface and the bottom surface of the part which is not seated in the said base plate 100 of the said rotation plate 200.

The base material 10 inserted into the through hole 210 of the rotating plate 200 by the base material supplying part 300 is inserted between the pair of grinding wheels 410 as the rotating plate 200 rotates, and thus, the pair of grinding wheels. The upper surface and the lower surface are ground by 410. At this time, since the rotating plate 200 is manufactured to have a thickness thinner than that of the base material 10, when the pair of grinding wheels 410 grind the top and bottom surfaces of the base material 10 inserted into the through hole 210, the rotating plate ( 200) shall not be ground.

On the other hand, the grinding unit 400, provided with a rotary motor 420 for rotating the grinding wheel 410, as described above to rotate the grinding wheel 410 by using the rotational force generated in the rotary motor 420. The power transmission structure is applied substantially the same in the conventional double head grinding device, and a detailed description thereof will be omitted.

As described above, in the double head grinding device according to the present invention, a plurality of base materials 10 are automatically supplied one by one between a pair of grinding wheels 410 according to the speed at which the rotating plate 200 rotates. There is an advantage that the base material 10 can be continuously ground. In addition, the double head grinding device according to the present invention does not pick up the base materials 10 one by one and transfer them to the grinding wheel 410 side, but simply rotate the rotating plate 200 to move the base material 10 to the grinding wheel 410 side. Since it is configured to transfer, it is possible to obtain the effect that the device for grinding the base material 10 becomes very simple and the productivity is improved.

3 and 4 are perspective views illustrating a structure in which the grinding unit 400 and the guide unit 500 are mounted on the rotating plate 200.

The base material 10 inserted into the through hole by the base material supply part 300 is partially or entirely through the through hole by the vibration or shock applied from the outside while being drawn to the grinding part 400 as the rotating plate 200 is rotated. Can be withdrawn to the outside. As such, when the base material 10 is transferred between the pair of grinding wheels 410 in a state in which all or a part of the base material 10 is drawn out of the through hole, the base material 10 is broken or the grinding wheel 410. An accident such as being damaged may occur.

Therefore, a guide part for preventing a phenomenon in which the base material 10 escapes to the outside of the through hole 210 between the base material supply part 300 and the grinding part 400 of the rotating plate 200, that is, the base material 10 splashes. 500 may be further provided. The guide part 500 may include a guide pad 510 covering a portion of the upper surface of the rotating plate 200 located between the base material supply part 300 and the grinding part 400, and an upper side of the guide pad 510. The fixed block 520 is fixed to position and is coupled to the fixed block 520 in a liftable structure is configured to include a pressure block 530 for pressing the guide pad 510 to the upper surface of the rotating plate 200. .

The guide pad 510 is not completely in close contact with the upper surface of the rotating plate 200, but is positioned to be slightly spaced apart from the upper surface of the rotating plate 200 in accordance with the thickness of the base material 10, thereby inserting the base material inserted into the through hole 210 ( 10 may be maintained by the guide pad 510 while passing through the guide portion 500. At this time, the guide unit 500 is provided with one each for the purpose of guiding the base material 10 which is conveyed toward the grinding part 400, and for the purpose of guiding the base material 10 discharged through the grinding part 400. Can be.

As such, when the guide part 500 is provided between the base material supply part 300 and the grinding part 400, the phenomenon in which the base material 10 transferred by the rotating plate 200 is drawn out of the through hole 210 may be prevented. Therefore, in the process of grinding the base material 10, the base material 10 may be damaged or the grinding wheel 410 may be prevented from being damaged.

On the other hand, the base plate 100 is mounted so as to support only the remaining portion of the rotary plate 200 except for the portion where the grinding wheel 410 is located, a pair of grinding wheel 410 included in the grinding portion 400 ) Is not in contact with the base plate 100 is in direct contact with the base material 10 to grind the upper and lower surfaces of the base material 10.

In addition, if the grinding wheel 410 is too small to be pressed against the base material 10, even if the grinding wheel 410 is rotated, the base material 10 is not effectively ground, the grinding wheel 410 is a predetermined level or more It is rotated in the state pressed by the base material 10 by a force, and is comprised so that the base material 10 may be ground. At this time, when the grinding wheel 410 is pressed against the base material 10 with excessively large force, the rotation motor 420 may be overloaded and the rotating motor 420 may be damaged or the surface of the base material 10 may be damaged. It may occur.

Therefore, when the grinding wheel 410 is excessively compressed to the base material 10 and the rotary motor 420 is overloaded, the grinding wheel 410 should be spaced apart from the base material 10 or the rotating motor 420 should be stopped. However, when the grinding wheel 410 is spaced apart from the base material 10 or the rotating motor 420 is stopped, the grinding process of the base material 10 is stopped, and the base material 10 must be ground again from the beginning. That is, a problem arises that the productivity of the base material 10 is significantly reduced.

Double head grinding device according to the present invention, in order to solve such problems, when the grinding wheel 410 and the base material 10 is excessively compressed in the grinding process of the base material 10, the height of the grinding wheel 410 is fixed While maintaining the rotation of the grinding wheel 410 in the state, the rotating plate 200 is rotated 360 degrees, that is, one rotation idle so that the pressing force between the grinding wheel 410 and the base material 10 falls below the reference value of the base material 10 The process of grinding the surface is carried out. At this time, when the rotary plate 200 is rotated once, if the pressing force between the grinding wheel 410 and the base material 10 does not fall below the reference value, the rotary plate 200 is further rotated by one or two or more revolutions.

That is, the grinding unit 400, while rotating the grinding wheel 410 while gradually moving the grinding wheel 410 toward the base material 10 to grind the base material 10, the rotary motor ( When the overload occurs in the 420 or more than the reference value is configured to idle the rotation plate 200 at least one revolution in the state of stopping the movement of the grinding wheel 410 until the overload of the rotary motor 420 falls below the reference value. This is preferred. In general, when the rotary motor 420 is overloaded, the current consumption of the rotary motor 420 is increased. By measuring the current consumption of the rotary motor 420, it is determined whether the rotary motor 420 is overloaded. Can be configured to determine. Of course, if it is only possible to determine whether the overload of the rotary motor 420, a variety of methods can be applied in addition to the method of measuring the current consumption of the rotary motor 420.

When the rotary motor 420 is overloaded as described above, when the rotary plate 200 is idling (operation of rotating only the rotary plate 200 while maintaining the height of the grinding wheel 410 and the rotation of the grinding wheel 410), By preventing the overload of the rotary motor 420 to prevent the damage of the rotary motor 420, it is possible to obtain the advantage that the grinding wheel 410 can be prevented from sticking to the base material (10).

5 and 6 are a plan view and a bottom perspective view of the base material supply unit 300 included in the double head grinding device according to the present invention.

The double head grinding device according to the present invention has another feature in that it is configured to supply the base material 10 one by one to the through hole 210 of the rotating plate 200 without a separate clamp or carrier.

That is, the base material supply unit 300 is coupled to the fixing plate 310 to be transported in the horizontal direction and the fixed plate 310 fixed to one side of the base plate 100, as shown in Figures 5 and 6 However, when one side is transported to cover the upper surface of the rotating plate 200, the conveying plate 320 is formed at the point corresponding to the through hole 210 and the transfer plate 320, toward the central portion of the opening 322 Four fastening brackets 350 coupled to the transfer plate 320 in a horizontally movable structure, and a plurality of edges of the plurality of base materials 10 fixedly coupled to each fastening bracket 350 so as to stand vertically and stacked vertically. Four vertical rods 340 are supported. A fastening slot 352 is formed at a portion of the fastening bracket 350 that is coupled to the transfer plate 320, and the fastening bracket 350 penetrates the fastening slot 352 to the transfer plate 320. It may be coupled to the transfer plate 320 by a separate fastening bolt (not shown) to be fastened. After the user stacks the plurality of base materials 10 between the four vertical bars 340, and transfers and fixes the brackets such that each of the vertical bars 340 contacts the outer surface of the base material 10, The transfer cylinder 330 is operated to adjust the position of the transfer plate 320 so that the loaded base material 10 is positioned on the transfer path of the through hole 210.

As mentioned above, when the rotating plate 200 is rotated after the position of the base material 10 is set, the base material 10 is placed at its own weight when any one of the through holes 210 is positioned below the stacked base material 10. It enters the through hole 210 by falling down by. At this time, since the rotating plate 200 is manufactured to have a thickness thinner than that of the base material 10, only the base material 10 positioned at the bottom of the plurality of stacked base materials 10 is inserted into the through hole 210 to rotate the plate 200. It is rotated integrally, and then the base material 10 (more specifically, the base material 10 which is directly above the base material 10 inserted into the through hole 210) is in sliding contact with the upper surface of the rotating plate 200. It is inserted into the through hole 210 and rotated integrally with the rotating plate 200.

That is, the base material supply unit 300 included in the present invention is only the operation of rotating the rotating plate 200 in a state in which the plurality of stacked base materials 10 are positioned on the transfer path of the through holes 210, and each through The base material 10 may be continuously introduced into the ball 210 one by one. Therefore, using the double head grinding device according to the present invention, since the base material 10 can be provided to the grinding unit 400 one by one without a clamp for holding the base material 10 or a carrier for transporting the base material 10, unit time There is an advantage in that a large number of the base material 10 can be ground.

7 and 8 are side views illustrating the operation of the butyl portion 110 included in the double head grinding device according to the present invention.

The double head grinding device according to the present invention may be configured to automatically discharge the base material 10 having completed grinding of the upper and lower surfaces through the grinding part 400 without a separate clamp. That is, the base plate 100 is composed of a butyl portion 110 which can be inclined downward so as to be spaced apart from the bottom surface of the rotating plate 200 is a portion of the rotating plate 200 is seated. The butyl part 110 is initially horizontally arranged as shown in FIG. 7 to support the base material 10 inserted into the through hole 210. When the tilting cylinder 120 is compressed, it is shown in FIG. As described above, the base material 10 inserted into the through hole 210 may be inclined so that the outer end thereof faces downward, and be discharged down the upper surface of the butyl part 110 by falling down by its own weight. In this case, a loading part 600 on which the discharged base material 10 is loaded may be provided at the point where the base material 10 is discharged, as shown in FIGS. 1 and 2. Since the present invention is commercialized in various structures in the corresponding field, a detailed description of the structure of the loading part 600 will be omitted.

As the butyl part 110 is inclined as described above, when the base material 10 in the through-hole 210 positioned on the butyl part 110 is discharged downward, the grinding material is completed without a separate clamp or carrier. Since the 10 can be sequentially loaded in the stacking unit 600 one by one, the configuration of the double head grinding device is very simple and the power consumption can be significantly reduced.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example and should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

10: base material 100: base plate
110: tilting unit 120: tilting cylinder
200: rotating plate 210: through hole
300: base material supply part 310: fixed plate
320: transfer plate 322: opening
330: transfer cylinder 340: vertical rod
350: fastening bracket 400: grinding part
410: grinding wheel 420: rotary motor
500: guide part 510: guide pad
520: fixed block 530: pressure block
600: loading part

Claims (5)

A base plate 100;
A part of which is rotatably disposed on an upper surface of the base plate 100, and a plurality of through holes 210 into which the base material 10 can be inserted is arranged in a circle around a rotation axis;
A base material supply unit 300 supplying the base material 10 one by one to the through-hole 210 positioned on the rotating plate 200;
Grinding part 400 for covering the upper surface and the bottom surface of the portion of the rotating plate 200 that is not seated on the base plate 100, while grinding the upper surface and the bottom surface of the base material 10 while being rotated by the power of the rotary motor 420 );
The base material supply unit 300 is fixed to one side of the base plate 100 and the fixed plate 310 is coupled to the fixed plate 310 so as to be transported in a horizontal direction, one side of the cover the upper surface of the rotating plate 200 The transfer plate 320 having an opening 322 formed at a point corresponding to the through hole 210 and a horizontally movable toward the center of the opening 322. At least three fastening brackets 350 to be coupled, and three or more vertical rods 340 fixedly coupled to each fastening bracket 350 so as to stand vertically and supporting the edges of the plurality of base materials 10 stacked vertically. Double head grinding device, characterized in that.
The method according to claim 1,
A guide mounted between the base material supply part 300 and the grinding part 400 of the rotating plate 200 to support the top and bottom surfaces of the base material 10 inserted into the through hole 210 of the rotating plate 200. Further comprising a portion 500,
The guide part 500 may include a guide pad 510 covering a portion of the upper surface of the rotating plate 200 located between the base material supply part 300 and the grinding part 400, and the guide pad 510. A fixed block 520 fixed to be positioned at an upper side, and a pressure block 530 coupled to the fixed block 520 in a liftable structure to press the guide pad 510 to the upper surface of the rotating plate 200. Double head grinding device, characterized in that.
The method according to claim 1,
The base plate 100 is provided with a butyl portion 110 that can be rotated inclined downward so as to be spaced apart from the bottom surface of the rotating plate 200,
Double head grinding device, characterized in that it further comprises a loading portion 600 is loaded with the base material 10 discharged on the upper surface of the butyl portion (110).
delete The method according to claim 1,
The grinding part 400 rotates the grinding wheel 410 while gradually moving the grinding wheel 410 toward the base material 10 to grind the base material 10 to the rotating motor 420. When the overload occurs more than a reference value double head characterized in that the rotating plate 200 is idling one or more revolutions in the state in which the movement of the grinding wheel 410 is stopped until the overload of the rotary motor 420 falls below the reference value Grinding device.

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