Full-automatic button burr trimming machine

Abstract

The present application relates to a kind of full-automatic button sanding machine, which includes machine box, conveying device, sanding device and conveying device. Conveying track is arranged on the machine box, sanding device is arranged on one side of conveying track, and sanding device includes first drive unit and first sand belt. First drive unit drives first sand belt to rotate in the direction opposite to the conveying direction of conveying track. First sand belt is provided with friction reference surface for rubbing the edge of button. Transmission device is arranged on the other side of conveying track, and the rotation direction of transmission device is opposite to that of sanding device, so that the button is tightly attached to the friction reference surface of first sand belt and is driven to move along the conveying direction of conveying track. Sanding device and transmission device rotate in opposite directions to control the movement of button on conveying track towards the conveying direction, and the rotation speed of sanding device is less than that of transmission device, so that the button can be polished while being transported, significantly improving the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of button sanding machine equipment, and particularly relates to a full-automatic button sanding machine. BACKGROUND

[0002] The existing button processing die casting machine generally uses a feeding hopper to add molten metal into the machine body, and the molten metal liquid needs to be added to the machine body before each die casting; the plastic button production process flow is mold closing-filling-pressure maintaining-cooling-mold opening-ejection, the mold closing forms a complete mold, the filling fills the molten plastic in the high-pressure feeding groove into the mold, the pressure maintaining compacts the melt to increase the plastic density, the cooling cools the molten plastic, and the mold opening and ejection take out the finished product in the mold. The edges of the taken-out buttons generally have burrs, so polishing and cleaning are needed, but each process needs to be operated by workers, which is time-consuming and laborious, affects the production efficiency, and the existing button polishing equipment needs to transfer the buttons through multiple transfer devices for polishing, which makes the buttons need to be transferred for multiple times and the production steps become complex.

[0003] Therefore, a full-automatic button sanding machine is needed to solve the above problems. SUMMARY

[0004] The present application relates to a full-automatic button sanding machine, which sets a friction reference surface on the first sanding belt of the sanding device, so that the burrs of the button are polished at the friction reference surface, the sanding device and the transmission device rotate in opposite directions to control the movement of the button on the conveying track in the conveying direction, the rotation speed of the sanding device is less than that of the transmission device, so that the button can be polished while being transported, which significantly improves the production efficiency and solves the problem of low production efficiency caused by the need for workers to operate the polishing process of the button and the need for multiple transfers and sequential polishing during polishing in the prior art.

[0005] To solve the above problems, the content of the present application is: a full-automatic button sanding machine, which comprises:

[0006] a machine box;

[0007] a conveying device comprising a conveying track, the conveying track is arranged on the machine box and used for conveying buttons;

[0008] The sand edge device is arranged on one side of the conveying track, and comprises a first driving unit and a first sand belt; the first driving unit is arranged on the case, the first sand belt is rotationally connected with the first driving unit, and the first driving unit is used for driving the first sand belt to rotate in the direction opposite to the conveying direction of the conveying track; the first sand belt is provided with a friction reference surface for rubbing the edge of the button; and

[0009] The transmission device is arranged on the other side of the conveying track, is opposite to the rotation direction of the sand edge device, is used for making the button close to the friction reference surface of the first sand belt and driving the button to move in the conveying direction of the conveying track, and the rotation speed of the sand edge device is less than the rotation speed of the transmission device.

[0010] Further, the first driving unit comprises a first motor, a first transmission wheel and a second transmission wheel. The first motor, the first transmission wheel and the second transmission wheel are sequentially arranged along the conveying direction of the conveying track. The first motor is fixedly arranged on the case, one end of the first sand belt is rotationally connected with the first motor, and the other end of the first sand belt is sequentially connected with the first transmission wheel and the second transmission wheel. The distance from the first transmission wheel to the conveying track is greater than the distance from the second transmission wheel to the conveying track, so that the tension degree of the first sand belt is improved.

[0011] Further, the distance from the first transmission wheel to the first motor is greater than the distance between the first transmission wheel and the second transmission wheel, so that the tension of the feeding port is reduced, and the feeding of the button is facilitated.

[0012] Further, the first transmission wheel is slidingly connected with the case. The first driving unit further comprises a first elastic member and a fixing block. The fixing block is fixedly arranged on the case and is arranged between the first transmission wheel and the conveying track. One end of the first elastic member is fixedly connected with the fixing block, and the other end of the first elastic member is connected with the first transmission wheel. The compatibility of the equipment is improved, and the equipment is suitable for buttons of different sizes to be processed, and the feeding of the button is facilitated.

[0013] Further, the sand edge device further comprises a reference plate, the reference plate is arranged on the side, away from the conveying track, of the first sand belt, and is used for providing the first sand belt with the friction reference surface. The structure is simple, and the cost is saved.

[0014] Further, the transmission device comprises a second abrasive belt. The full-automatic button edge grinding machine further comprises a tensioning device for adjusting the tension of the second abrasive belt. The tensioning device comprises a first tensioning wheel, a second tensioning wheel and a third tensioning wheel. The first tensioning wheel, the second tensioning wheel and the third tensioning wheel are sequentially arranged on the machine box in the conveying direction of the button, and are in close contact with the side of the second abrasive belt away from the conveying track. Compatibility is improved, and the machine is suitable for buttons of different sizes to be processed, and the grinding precision can also be improved.

[0015] Further, the distance between the second tensioning wheel and the first tensioning wheel is greater than the distance between the second tensioning wheel and the third tensioning wheel, and the horn structure is automatically arranged to facilitate feeding. At the same time, the purpose of rough grinding and then fine grinding of the button can be achieved, and the grinding precision can be improved.

[0016] Further, the tensioning device further comprises three sets of adjusting units, and the adjusting unit comprises a push rod, a supporting block and a mounting block. The mounting block is movably connected with the machine box, the supporting block is fixedly connected with the machine box, one end of the push rod is fixedly connected with the mounting block, and the other end of the push rod is clampedly connected with the supporting block. The first tensioning wheel, the second tensioning wheel and the third tensioning wheel are fixedly connected with the mounting block of one set of the adjusting unit, for adjusting the tension of the second abrasive belt and improving the compatibility of the equipment.

[0017] Further, the conveying device further comprises a pressing strip, a connecting plate and two supporting rods. One end of the two supporting rods is vertically arranged on the machine box. One side of the connecting plate is screw-connected with the other end of the two supporting rods, and the other side of the connecting plate is screw-connected with one side of the pressing strip. The other side of the pressing strip is located above the conveying track, for limiting the button on the conveying track, preventing the button from shifting during grinding and affecting the grinding precision. The friction reference surface of the first abrasive belt is located below the connecting plate and between the supporting rods and the pressing strip, and the structure is compact and saves space.

[0018] Further, the pressing strip comprises a connecting portion and a pressing portion. An adjusting groove is arranged on the connecting portion, and the connecting portion is connected with the connecting plate through the adjusting groove, for adjusting the height of the pressing portion. One side of the connecting portion connected with the pressing portion is provided as an inclined surface, and the width of the connecting portion in the conveying direction of the button is sequentially increased, for arranging the pressing portion and the conveying track to have the same inclination, and improving the pressing effect.

[0019] The application has the beneficial effects that: the full-automatic button sanding machine comprises a machine box, a conveying device, a sanding device and a transmission device. The conveying track is arranged on the machine box and is used for conveying buttons. The sanding device is arranged on one side of the conveying track and comprises a first driving unit and a first sand belt. The first driving unit is arranged on the machine box, and the first sand belt is rotationally connected with the first driving unit. The first driving unit is used for driving the first sand belt to rotate in the direction opposite to the conveying direction of the conveying track. The first sand belt is provided with a friction reference surface and is used for rubbing the edge of the button. The transmission device is arranged on the other side of the conveying track and is opposite to the rotation direction of the sanding device and is used for making the button tightly contact with the friction reference surface of the first sand belt and driving the button to move along the conveying direction of the conveying track. The full-automatic button sanding machine sets the friction reference surface on the first sand belt of the sanding device, so that the burrs of the button are polished at the friction reference surface. The sanding device and the transmission device rotate in opposite directions to control the button to move along the conveying direction on the conveying track. The rotation speed of the sanding device is less than the rotation speed of the transmission device, so that the button can be polished while being conveyed. The production efficiency is significantly improved, and the problem of low production efficiency caused by the polishing process of the button, the need for workers to operate and the need for multiple transfer and polishing in sequence in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings needed to be used in the embodiments. The drawings in the following description are only corresponding drawings of some embodiments of the present application.

[0021] Figure 1 It is a structural schematic view of an embodiment of the full-automatic button sanding machine of the present application.

[0022] Figure 2 It is a structural schematic view of an embodiment of the full-automatic button sanding machine of the present application.

[0023] Figure 3 It is a top view of an embodiment of the full-automatic button sanding machine of the present application.

[0024] Figure 4 It is a front view of an embodiment of the pressing strip of the full-automatic button sanding machine of the present application.

[0025] Figure 5 It is a structural schematic view of an embodiment of the sanding device of the full-automatic button sanding machine of the present application.

[0026] Figure 6 It is a structural schematic view of an embodiment of the transmission device and the tensioning device of the full-automatic button sanding machine of the present application.

[0027] In the figure: 10. Automatic button sanding machine, 20. Machine box, 21. Shell, 22. First movable plate, 23. Second movable plate, 24. Baffle, 25. Screw rod, 30. Conveying device, 31. Feeding bin, 32. Conveying track, 33. Pressing strip, 331. Connecting part, 332. Pressing part, 333. Adjusting groove, 34. Connecting plate, 35. Support rod, 36. Buffer motor, 37. Buffer material wheel, 38. Discharge channel, 40. Sanding device, 411. First motor, 412. First transmission wheel, 413. Second transmission wheel, 414. First elastic member, 415. Fixed block, 416. First sliding rail, 417. First sliding block, 42. Reference plate, 50. Transmission device, 511. Second motor, 512. Third transmission wheel, 513. Fourth transmission wheel, 514. Second elastic member, 515. Stop block, 516. Second sliding rail, 517. Second sliding block, 60. Tensioning device, 61. First tensioning wheel, 62. Second tensioning wheel, 63. Third tensioning wheel, 64. Adjusting unit, 641. Push rod, 642. Support block, 643. Mounting block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] The direction terms mentioned in the present application, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", are only the orientation of the drawings, and the direction terms are used to illustrate and understand the present application, but not to limit the present application.

[0030] In the drawings, similar structures are denoted by the same reference numerals.

[0031] Please refer to Figure 1 , Figure 2 , Figure 3 In the present embodiment, the automatic button sanding machine 10 includes a machine box 20, a conveying device 30, a sanding device 40, a transmission device 50 and a tensioning device 60. The sanding device 40 and the transmission device 50 are respectively arranged on both sides of the conveying device 30, and the tensioning device 60 is used to adjust the tensioning degree of the transmission device 50. The sanding device 40 and the transmission device 50 jointly clamp the button and frictionally process the edge impurities of the button, so that the side edge of the button is smooth.

[0032] In the present embodiment, please refer to Figure 1 ,Figure 2 The machine case 20 is provided with a shell 21, which covers the processing device inside to improve safety during processing and effectively prevent polishing dust from polluting the environment and facilitate cleaning. The upper end of the machine case 20 is provided with a first movable plate 22, a second movable plate 23, two baffles 24, and a lead screw 25. The first movable plate 22 and the second movable plate 23 are arranged at the upper end of the machine case 20. Each of the first movable plate 22 and the second movable plate 23 is provided with a baffle 24 on the side close to each other, and the gap between the baffles 24 provides a space for the transportation of the button to prevent the button from shifting. The lead screw 25 is connected to the first movable plate 22 and the second movable plate 23. By rotating the lead screw 25 in and out, the distance between the first movable plate 22 and the second movable plate 23 can be adjusted, thereby adjusting the distance between the two baffles 24 to adapt to buttons of different sizes and improve compatibility.

[0033] In this embodiment, please refer to Figure 2 、 Figure 4 The conveying device 30 includes a feeding bin 31, a conveying track 32, a pressing strip 33, a connecting plate 34, two support rods 35, a buffer motor 36, and a buffer material wheel 37. The feeding bin 31 is arranged on one side of the machine case 20. The feeding inlet of the conveying track 32 is connected to the feeding bin 31. The height of the feeding inlet of the conveying track 32 is higher than the height of the discharging outlet of the conveying track 32, facilitating the transportation of the button. The buffer motor 36 is arranged on the machine case 20. The output shaft of the buffer motor 36 is connected to the buffer material wheel 37. The buffer material wheel 37 is located above the discharging outlet and is used to block and limit the speed of the material. The buffer material wheel 37 is arranged at the position of the discharging outlet. The buffer motor 36 drives the buffer material wheel 37 to rotate, so that the button at the discharging outlet is pushed out of the conveying track 32 and into the discharging channel 38. The speed of the button discharging can be adjusted by adjusting the rotating speed of the buffer material wheel 37.

[0034] One end of each of the two support rods 35 is arranged on the machine case 20 in a spaced-apart manner. One side of the connecting plate 34 is screw-connected to the other end of each of the two support rods 35. The other side of the connecting plate 34 is screw-connected to one side of the pressing strip 33. The other side of the pressing strip 33 is located above the conveying track 32 and is used to limit the button on the conveying track 32 to prevent the button from shifting during polishing, thereby affecting the polishing precision. The friction reference surface of the first abrasive belt is located below the connecting plate 34 and between the support rod 35 and the pressing strip 33, which has a compact structure and saves space.

[0035] The pressing strip 33 comprises a connecting part 331 and a pressing part 332. The connecting part 331 is provided with an adjusting groove 333, and the connecting part 331 is connected with the connecting plate 34 through the adjusting groove 333. The adjusting groove 333 can adjust the installation height of the pressing part 332, so that it can be suitable for buttons with different thicknesses, and the compatibility of the equipment is improved. The side of the connecting part 331 connected with the pressing part 332 is provided with an inclined surface, and the width of the connecting part 331 along the conveying direction of the button increases in turn, so that the pressing part 332 is arranged to have the same inclination as the conveying track 32, and the pressing effect is improved. The position of the pressing part 332 close to the discharge port is provided with an inclined surface which avoids the buffer material wheel 37, and the pressing effect is improved.

[0036] In this embodiment, please refer to Figure 2 、 Figure 3 、 Figure 5 The sanding device 40 comprises a first driving unit, a reference plate 42 and a first sand belt. The first driving unit is arranged on the case 20, and the first sand belt is rotationally connected with the first driving unit. The first driving unit is used to drive the first sand belt to rotate in the direction opposite to the conveying direction of the conveying track 32, so as to provide friction force for the button, thereby smoothing the edge of the button. The first sand belt is provided with a friction reference surface for frictionally smoothing the edge of the button. The reference plate 42 is arranged on the side of the first sand belt away from the conveying track 32, and is used to provide the first sand belt with a friction reference surface, which has a simple structure and saves cost.

[0037] The first driving unit comprises a first motor 411, a first transmission wheel 412, a second transmission wheel 413, a first elastic member 414, a fixed block 415, a first sliding rail 416 and a first sliding block 417. The first motor 411, the first transmission wheel 412 and the second transmission wheel 413 are arranged in turn along the conveying direction of the conveying track 32. The first motor 411 is fixedly arranged on the case 20, one end of the first sand belt is rotationally connected with the first motor 411, and the other end of the first sand belt is connected with the first transmission wheel 412 and the second transmission wheel 413 in turn. The distance between the first transmission wheel 412 and the first motor 411 is greater than the distance between the first transmission wheel 412 and the second transmission wheel 413, so as to slow down the tension of the feeding port and facilitate feeding. The distance between the first transmission wheel 412 and the conveying track 32 is greater than the distance between the second transmission wheel 413 and the conveying track 32, so as to improve the tension of the first sand belt.

[0038] The first transmission wheel 412 is slidingly connected with the case 20, and the second transmission wheel 413 is fixedly connected with the case 20. The first sliding rail 416 is fixedly arranged on the case 20, the first sliding block 417 is slidingly connected with the first sliding rail 416, the first transmission wheel 412 is fixedly connected with the first sliding block 417, and the first transmission wheel 412 is used for adjusting the tension degree of the first abrasive belt. The fixed block 415 is fixedly arranged on the case 20, and the fixed block 415 is arranged between the first transmission wheel 412 and the conveying track 32. One end of the first elastic member 414 is fixedly connected with the fixed block 415, and the other end of the first elastic member 414 is connected with the first sliding block 417. The compatibility of the equipment is improved, and the equipment is suitable for different sizes of the to-be-processed buttons and facilitates button feeding. Because the residual materials of edges of different buttons are different, the sizes of the buttons are different. When the large-size button enters, the first elastic member 414 is compressed, and the first transmission wheel 412 moves towards the conveying track 32; when the small-size button enters, the first elastic member 414 pushes the first transmission wheel 412 to move away from the conveying track 32, the distance between the first abrasive belt and the second abrasive belt is automatically adjusted, and the polishing efficiency is significantly improved.

[0039] In the embodiment, please refer to Figure 2 , Figure 3 , Figure 6 The transmission device 50 is arranged on the other side of the conveying track 32, the transmission device 50 is opposite to the rotating direction of the sanding device 40, and is used for making the button close to the friction reference surface of the first abrasive belt and driving the button to move along the conveying direction of the conveying track 32. The rotating speed of the sanding device 40 is less than the rotating speed of the transmission device 50.

[0040] The transmission device 50 includes a second driving unit and a second abrasive belt. The second driving unit is arranged on the case 20, the second abrasive belt is rotationally connected with the second driving unit, and the second driving unit is used for driving the second abrasive belt to rotate in the same direction as the conveying direction of the conveying track 32, and providing the transportation power for the button.

[0041] The second driving unit comprises a second motor 511, a third transmission wheel 512, a fourth transmission wheel 513, a second elastic member 514, a stop block 515, a second sliding rail 516 and a second sliding block 517. The second motor 511, the third transmission wheel 512 and the fourth transmission wheel 513 are sequentially arranged along the conveying direction of the conveying track 32. The second motor 511 is fixedly arranged on the cabinet 20, and the second motor 511 is arranged at the discharge port, and the first motor 411 is arranged at the feeding port, so that the structure is compact and the space utilization is improved. One end of the second abrasive belt is rotatably connected with the second motor 511, and the other end of the second abrasive belt is sequentially connected with the third transmission wheel 512 and the fourth transmission wheel 513. The distance between the third transmission wheel 512 and the second motor 511 is greater than the distance between the third transmission wheel 512 and the fourth transmission wheel 513, so as to slow down the tension of the feeding port and facilitate feeding. The distance between the third transmission wheel 512 and the conveying track 32 is greater than the distance between the fourth transmission wheel 513 and the conveying track 32, so as to improve the tension degree of the second abrasive belt.

[0042] The third transmission wheel 512 is slidably connected with the cabinet 20, and the fourth transmission wheel 513 is fixedly connected with the cabinet 20. The second sliding rail 516 is fixedly arranged on the cabinet 20, the second sliding block 517 is slidably connected with the second sliding rail 516, the third transmission wheel 512 is fixedly connected with the second sliding block 517, and the second sliding block 517 is used for adjusting the tension degree of the second abrasive belt. The stop block 515 is fixedly arranged on the cabinet 20, and the stop block 515 is arranged between the third transmission wheel 512 and the conveying track 32. One end of the second elastic member 514 is fixedly connected with the stop block 515, and the other end of the second elastic member 514 is connected with the second sliding block 517. The compatibility of the equipment is improved, and the equipment is suitable for different sizes of the to-be-processed button, and the feeding of the button is facilitated. Because the residual materials of the edges of different buttons are different, the sizes of the buttons are different. When the large-size button enters, the second elastic member 514 is compressed, and the third transmission wheel 512 moves towards the conveying track 32; when the small-size button enters, the second elastic member 514 pushes the third transmission wheel 512 to move away from the conveying track 32, so as to automatically adjust the distance between the first abrasive belt and the second abrasive belt, and the polishing efficiency is significantly improved.

[0043] In the embodiment, please refer to Figure 6The tensioning device 60 is used to adjust the tensioning degree of the second abrasive belt. The tensioning device 60 comprises a first tensioning wheel 61, a second tensioning wheel 62, a third tensioning wheel 63 and three sets of adjusting units 64. The first tensioning wheel 61, the second tensioning wheel 62 and the third tensioning wheel 63 are sequentially arranged on the cabinet 20 along the conveying direction of the button, located between the second motor 511 and the fourth transmission wheel 513, and are in close contact with the side of the second abrasive belt away from the conveying track 32. The compatibility can be improved, which is suitable for buttons of different sizes to be processed, and the polishing precision can also be improved. The distance between the second tensioning wheel 62 and the first tensioning wheel 61 is greater than the distance between the second tensioning wheel 62 and the third tensioning wheel 63, the horn structure is automatically set, and the feeding is facilitated. At the same time, the purpose of rough polishing and then fine polishing of the button can be achieved, and the polishing precision can be improved.

[0044] The adjusting unit 64 comprises a push rod 641, a supporting block 642 and a mounting block 643. The mounting block 643 is movably connected with the cabinet 20. In the embodiment, the mounting block 643 is movably connected with the cabinet 20 in the mode of the sliding block cooperating with the sliding rail. The supporting block 642 is fixedly connected with the cabinet 20. One end of the push rod 641 is fixedly connected with the mounting block 643, and the other end of the push rod 641 is clampedly connected with the supporting block 642. The first tensioning wheel 61, the second tensioning wheel 62 and the third tensioning wheel 63 are fixedly connected with the mounting block 643 of one set of adjusting units 64, which is used to manually adjust the distance between the first tensioning wheel 61, the second tensioning wheel 62, the third tensioning wheel 63 and the conveying track 32, and improve the compatibility of the equipment. When the size of the buttons in the batch is large, the push rod 641 is retracted towards the supporting block 642, so that the first tensioning wheel 61, the second tensioning wheel 62 and the third tensioning wheel 63 are away from the conveying track 32, and the distance between the first abrasive belt and the second abrasive belt is increased. When the size of the buttons in the batch is small, the push rod 641 is pushed towards the conveying track 32, and then locked, so that the first tensioning wheel 61, the second tensioning wheel 62 and the third tensioning wheel 63 are close to the conveying track 32, and the distance between the first abrasive belt and the second abrasive belt is reduced. In the embodiment, the first abrasive belt and the second abrasive belt are not drawn in the figure.

[0045] In use, first, the positions of the first tensioning wheel 61, the second tensioning wheel 62 and the third tensioning wheel 63 are adjusted according to the size of the button. The button enters the conveying track 32 from the feeding bin 31. At the feeding port of the conveying track 32, the friction force of the second sand belt provides power for the button to move forward in the conveying direction, and the first sand belt provides friction force in the opposite direction of the second sand belt, for smoothing the edges of the button. Because the rotation speed of the second sand belt is faster than that of the first sand belt, the contact area of the second sand belt with the button is larger, so that the friction force provided by the second sand belt is greater than that of the first sand belt, ensuring that the second sand belt can drive the button to move towards the discharge port. Because the distance between the first tensioning wheel 61 and the second tensioning wheel 62 is large, the button is subjected to small extrusion force in this region, so that the button can be coarsely ground. When the button is conveyed to the friction reference surface, the distance between the first sand belt and the second sand belt is reduced, the extrusion force on the button is increased, and the friction force is increased, so that the button is finely ground in this region, improving the grinding effect of the button. The ground button is conveyed to the discharge port position, and the button is conveyed out of the discharge channel 38 under the action of the buffer material wheel 37.

[0046] In the embodiment, the application relates to a full-automatic button sanding machine, which comprises a machine box, a conveying device, a sanding device and a transmission device. The conveying track is arranged on the machine box and is used for conveying buttons. The sanding device is arranged on one side of the conveying track, and the sanding device comprises a first driving unit and a first sand belt. The first driving unit is arranged on the machine box, the first sand belt is rotationally connected with the first driving unit, and the first driving unit is used for driving the first sand belt to rotate in the direction opposite to the conveying direction of the conveying track. The first sand belt is provided with a friction reference surface and is used for rubbing the edges of the button. The transmission device is arranged on the other side of the conveying track, the transmission device is opposite to the rotation direction of the sanding device, and is used for making the button tightly contact with the friction reference surface of the first sand belt and driving the button to move along the conveying direction of the conveying track. The full-automatic button sanding machine sets the friction reference surface on the first sand belt of the sanding device, so that the burrs of the button are ground at the friction reference surface. The sanding device and the transmission device rotate in opposite directions to control the button to move along the conveying direction on the conveying track. The rotation speed of the sanding device is less than that of the transmission device, so that the button can be ground while being conveyed, the production efficiency is significantly improved, and the problem of low production efficiency caused by the fact that the grinding process of the button needs to be operated by workers and the button needs to be conveyed and ground for multiple times in sequence in the prior art is solved.

[0047] To sum up, although the application has been disclosed as above with preferred embodiments, the above preferred embodiments are not used to limit the application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the application, so the protection scope of the application is subject to the range defined by the claims.

Claims

1. A fully automatic button sanding machine, characterized in that, include: Chassis; A conveying device, comprising a conveying track disposed on the chassis for conveying buttons; An edge-sanding device is disposed on one side of the conveying track. The device includes a first drive unit and a first sanding belt. The first drive unit is mounted on the housing, and the first sanding belt is rotatably connected to the first drive unit. The first drive unit drives the first sanding belt to rotate in the opposite direction to the conveying direction of the conveying track. The first sanding belt has a friction reference surface for rubbing the edge of the button. A transmission device is disposed on the other side of the conveying track. The transmission device rotates in the opposite direction to the sanding device, and is used to ensure that the button is in close contact with the friction reference surface of the first sanding belt and to drive the button to move along the conveying direction of the conveying track. The rotation speed of the sanding device is less than the rotation speed of the transmission device. The transmission device includes a second sanding belt. The fully automatic button sanding machine also includes a tensioning device for adjusting the tension of the second sanding belt. The tensioning device includes a first tensioning wheel, a second tensioning wheel, and a third tensioning wheel. The first tensioning wheel, the second tensioning wheel, and the third tensioning wheel are sequentially and movably disposed on the machine housing along the conveying direction of the button, and are all in close contact with the side of the second sanding belt opposite to the conveying track. The distance between the second tensioning wheel and the first tensioning wheel is greater than the distance between the second tensioning wheel and the third tensioning wheel. The tensioning device also includes three sets of adjustment units. The first tensioning wheel, the second tensioning wheel, and the third tensioning wheel are each connected to one set of adjustment units for adjusting the tension of the second sanding belt.

2. The fully automatic button sanding machine according to claim 1, characterized in that, The first drive unit includes a first motor, a first transmission wheel, and a second transmission wheel. The first motor, the first transmission wheel, and the second transmission wheel are arranged sequentially along the conveying direction of the conveying track. The first motor is fixedly mounted on the housing. One end of the first sanding belt is rotatably connected to the first motor, and the other end of the first sanding belt is sequentially connected to the first transmission wheel and the second transmission wheel. The distance from the first transmission wheel to the conveying track is greater than the distance from the second transmission wheel to the conveying track.

3. The fully automatic button sanding machine according to claim 2, characterized in that, The distance between the first transmission wheel and the first motor is greater than the distance between the first transmission wheel and the second transmission wheel.

4. The fully automatic button sanding machine according to claim 2, characterized in that, The first transmission wheel is slidably connected to the chassis; the first drive unit further includes a first elastic element and a fixing block; the fixing block is fixedly disposed on the chassis and disposed between the first transmission wheel and the conveying track; one end of the first elastic element is fixedly connected to the fixing block, and the other end of the first elastic element is connected to the first transmission wheel.

5. The fully automatic button sanding machine according to claim 1, characterized in that, The sanding device also includes a reference plate, which is disposed on the side of the first sanding belt away from the conveying track, and is used to provide the friction reference surface for the first sanding belt.

6. The fully automatic button sanding machine according to claim 1, characterized in that, The adjustment unit includes a push rod, a support block, and a mounting block. The mounting block is movably connected to the chassis, the support block is fixedly connected to the chassis, one end of the push rod is fixedly connected to the mounting block, and the other end of the push rod is engaged with the support block. The first tensioning wheel, the second tensioning wheel, and the third tensioning wheel are all fixedly connected to the mounting blocks of a set of adjustment units, and are used to adjust the tension of the second sanding belt.

7. The fully automatic button sanding machine according to claim 1, characterized in that, The conveying device further includes a pressing strip, a connecting plate, and two support rods. One end of each of the two support rods is vertically mounted on the chassis at a distance from each other. One side of the connecting plate is screwed to the other end of each of the two support rods, and the other side of the connecting plate is screwed to one side of the pressing strip. The other side of the pressing strip is located above the conveying track and is used to limit the buttons on the conveying track to prevent the buttons from shifting during the grinding process. The friction reference surface of the first sanding belt is located below the connecting plate and between the support rods and the pressing strip.

8. The fully automatic button sanding machine according to claim 7, characterized in that, The pressing strip includes a connecting part and a pressing part. The connecting part is provided with an adjustment groove. The connecting part is connected to the connecting plate through the adjustment groove for adjusting the height of the pressing part. The side of the connecting part connected to the pressing part is set as an inclined surface. The width of the connecting part increases sequentially along the conveying direction of the button to make the inclination of the pressing part the same as that of the conveying track.

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