Sole edging device

Abstract

The utility model provides a sole edging device which comprises a rotating disc, the rotating disc is installed on a bottom column, a plurality of supporting plates are arranged on the rotating disc, and the supporting plates are evenly distributed in the circumferential direction of the rotating disc. A supporting assembly and two grinding wheels are arranged above the bottom column, the supporting assembly is installed on the bottom column in a lifting mode, the two grinding wheels are movably arranged on the supporting assembly, the two grinding wheels are adjacently arranged above the rotating disc, and meanwhile the multiple supporting plates sequentially move to the position between the two grinding wheels; the two polishing wheels are arranged above the rotary table, the rotary table is provided with the supporting plate used for supporting the shoe sole, and the rotary table can drive the supporting plate to rotate, so that the shoe sole to be polished can be conveniently and continuously moved to the polishing wheels, the current situation that a polishing device corresponding to the shoe sole is manually held for polishing is changed, and the polishing efficiency is correspondingly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of shoe sole finishing equipment, and in particular to a shoe sole edge grinding device. Background Technology

[0002] During the manufacturing process of shoe soles, burrs, flash, or excess material are inevitably produced at the edges due to mold closing, material injection, and other processes. If these defects are not addressed, they will affect the overall structural strength and stability of the sole. Therefore, the processed soles need to be edge-ground using a grinding device to remove burrs, flash, or excess material, ensuring neat edges, improving overall quality, and reducing the risk of sole damage caused by edge defects.

[0003] Currently, there are many devices used for shoe sole edge grinding, such as vertical shoe sole edge grinding machines. When using a vertical shoe sole edge grinding machine, workers need to pick up the shoe sole one by one and control the contact between the sole and the grinding device of the machine. Simultaneously, the worker operates the sole to rotate relative to the grinding device according to the grinding progress, thus completing the grinding of one shoe sole. While this grinding method can complete the grinding of shoe soles, its efficiency needs improvement for batch shoe sole grinding, and it can easily cause worker fatigue.

[0004] To address the aforementioned issues, shoe sole edge grinding devices that reduce the labor intensity of workers have emerged on the market. For example, a shoe sole edge grinding machine disclosed in Chinese Patent Publication No. CN109330111A includes a frame and a lower mold. A conveyor belt is located on one side of the frame, and a material box is located on the other side. A conveying device is located above the frame. A first motor is fixed below the lower mold. Edge grinding mechanisms are located on both sides of the lower mold, each including a grinding wheel, a second motor, and a fixed base. The fixed base is connected to the frame via a telescopic rod, and a compression spring is fitted onto the telescopic rod. The fixed base abuts against the lower mold under the action of the compression spring. The conveying device facilitates the transport of the shoe sole between the conveyor belt, the lower mold, and the material box, enabling assembly line operation and improving production efficiency. By setting the lower mold to the same shape as the shoe sole outline and using the compression spring to make the fixed base abut against the lower mold, the contact positioning between the lower mold and the lower end of the fixed base controls the distance between the grinding wheel and the edge of the shoe sole, ensuring dimensional accuracy during grinding. This improves the edge grinding quality while preventing direct contact between the grinding wheel and the lower mold, thus avoiding damage to both.

[0005] While the device provided by the aforementioned patent can clamp and transfer shoe soles using vacuum suction cups, it has some drawbacks. For example, to clamp the shoe sole using a vacuum suction cup, the sole needs to be flat and in sealed contact with the suction cup. However, shoe soles produced in reality are usually non-planar. This design reduces material usage and lowers the sole's weight, but it prevents contact with the vacuum suction cup for clamping and transfer, thus limiting the applicability of the device provided by the aforementioned patent. Utility Model Content

[0006] This utility model discloses a shoe sole edge grinding device, which mainly solves the problems of low efficiency, high labor intensity, or limited applicability of traditional shoe sole edge grinding devices.

[0007] To achieve the aforementioned objective, the technical solution of this utility model is implemented as follows:

[0008] This utility model provides a shoe sole edge grinding device, including a turntable, which is mounted on a base column, and multiple support plates are provided on the turntable, which are evenly distributed along the circumference of the turntable; a support assembly and two grinding wheels are provided above the base column, the support assembly is elliptical mounted on the base column, the two grinding wheels are movably mounted on the support assembly, and the two grinding wheels are positioned adjacent to each other above the turntable, while the multiple support plates move sequentially to the two grinding wheels.

[0009] In one embodiment, the top of the base column is set as an opening, and a plurality of screws are fixedly provided on the upper side of the base column. At the same time, a top plate is provided above the base column, and the top plate is sleeved on the screws.

[0010] In one embodiment, the turntable is configured as a ring structure, and an inner ring plate is fixedly disposed on the inner side of the turntable. The inner ring plate is sleeved on the top plate through a bearing connection. A gear ring is disposed at the bottom of the inner ring plate, and a fifth motor is disposed on the bottom column. A first gear is fixedly disposed on the output shaft of the fifth motor, and the first gear meshes with the gear ring.

[0011] In one embodiment, a plurality of through holes are provided on the turntable, and a support plate is disposed at the through holes and located above the turntable. Meanwhile, a central shaft fixedly disposed at the bottom of the support plate passes through the through holes. In addition, the central shaft is connected to a bracket via a bearing and the bracket is installed on the lower side of the turntable.

[0012] In one embodiment, a second gear is provided on the central shaft, and a first motor is provided on the bottom column. The first motor is located adjacent to the bottom of the grinding wheel, and a third gear is provided on the power output shaft of the first motor. The third gear is meshed with and connected to the second gear.

[0013] In one embodiment, the support assembly includes a main board and a support frame; the main board is configured with an L-shaped structure, and a drive plate is inserted into the side of the main board, and a second threaded rod is threaded through the end of the drive plate, the bottom of the second threaded rod being connected to the power output shaft of a third motor; the support frame is vertically disposed at the end of the main board, and a first threaded rod is disposed on the support frame, the end of the first threaded rod being connected to the power output shaft of a fourth motor.

[0014] In one embodiment, a through hole is provided on the top plate, the through hole is adapted to the main board, and the bottom of the main board is provided through the through hole; the power output shaft of the third motor is connected through the top plate via a bearing; multiple insertion holes are provided on the main board, the multiple insertion holes are distributed along the height direction of the main board, and the end of the drive plate is inserted into the insertion holes.

[0015] In one embodiment, the central shafts of the two grinding wheels are respectively connected through two sets of bearing seats, which are respectively mounted on two base frames. The tops of the two base frames are connected to a horizontal plate, which is connected through a support frame and the support frame is connected through a sleeve groove in the middle of the horizontal plate. At the same time, the first threaded rod is threaded through the horizontal plate. A snap-fit ​​groove is provided at both ends below the horizontal plate. A snap-fit ​​plate is fixedly installed on the top of the base frame. A guide rod is fixedly installed on the side of the snap-fit ​​plate, and the guide rod is connected through a blocking plate. The snap-fit ​​plate is located in the snap-fit ​​groove, and the blocking plate is bolted to the end of the snap-fit ​​groove. A spring is sleeved on the guide rod, which is in a compressed state, and its two ends are respectively connected to the blocking plate and the snap-fit ​​plate.

[0016] In one embodiment, a second sprocket is provided on the central shaft of the grinding wheel, and four third sprockets are also provided. The four third sprockets are located at the corners of a rectangle and are distributed on both sides of two second sprockets. The distance between the two second sprockets is greater than the width of the rectangle formed by the third sprockets. The central shaft of one of the third sprockets is connected to the power output shaft of a second motor, and the second sprocket and the third sprocket are connected by a chain.

[0017] In one embodiment, a second adjusting plate assembly is provided between two third sprockets located on the same side of the second sprocket. The second adjusting plate assembly includes a sleeve and two side frames. The sleeve is connected to the support frame through a top connecting plate, and a rotating shaft is connected to the bottom of the sleeve through a bearing. Third threaded rods with opposite thread directions are fixedly provided at both ends of the rotating shaft. The two side frames are respectively installed on the bearing seats of the two third sprockets, and an insert plate is fixedly provided at the end of the two side frames that are close to each other. The insert plate is inserted into the sleeve, and the third threaded rod is threaded through the side frame.

[0018] The advantages or beneficial effects of the above technical solutions include at least the following:

[0019] 1. This utility model has two grinding wheels above the turntable, and a support plate for holding the shoe sole is provided on the turntable. The turntable can drive the support plate to rotate, which makes it easier to continuously move the shoe sole to be ground to the grinding wheels. This changes the current situation where the shoe sole is manually held and ground by the corresponding grinding device, and improves the grinding efficiency accordingly.

[0020] 2. The grinding wheels provided in this utility model can move along the length of the support frame, and the grinding wheels are distributed on both sides of the sole. The sole can be ground during the movement of the two grinding wheels to eliminate burrs, flash, or excess material. Attached Figure Description

[0021] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the turntable of this utility model;

[0024] Figure 3 This is a structural schematic diagram of the base column and top plate of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the support plate of this utility model;

[0026] Figure 5 This is a structural schematic diagram of the grinding wheel and support assembly of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the support component of this utility model;

[0028] Figure 7 This is a structural schematic diagram of the grinding wheel, the first adjusting plate group, and the second adjusting plate group of this utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the first adjusting plate assembly of this utility model;

[0030] Figure 9 This is a schematic diagram of the structure of the second adjustment plate assembly of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Turntable;

[0033] 11. Base column; 12. Through hole; 13. First gear; 14. Gear ring; 15. First motor; 16. Inner ring plate; 17. Top plate; 18. Screw; 19. Through hole;

[0034] 2. Support plate;

[0035] 21. Bracket;

[0036] 3. Grinding wheel;

[0037] 31. Second sprocket; 32. Third sprocket; 33. Second motor;

[0038] 4. Support components;

[0039] 41. Mainboard; 42. Third motor; 43. Drive plate; 44. Socket; 45. Fourth motor; 46. Support frame; 47. First threaded rod; 48. Pressing rod; 49. Second threaded rod;

[0040] 5. First adjusting plate group;

[0041] 51. Horizontal plate; 52. Threaded hole; 53. Sleeve groove; 54. Snap-on groove; 55. Base frame; 56. Spring; 57. Snap-on plate; 58. Guide rod; 59. Blocking plate;

[0042] 6. Second adjusting plate group;

[0043] 61. Sleeve; 62. Connecting plate; 63. Insert plate; 64. Side frame; 65. Rotating shaft; 66. Third threaded rod. Detailed Implementation

[0044] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0045] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0046] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0047] It should be noted that the terms "a" and "a plurality of" used in this invention are illustrative rather than restrictive. Those skilled in the art should understand that, unless explicitly stated otherwise in the context, they should be interpreted as "one or more". The names of messages or information exchanged between multiple devices in the embodiments of this invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0048] Example 1

[0049] like Figure 1 , Figure 5 As shown, in order to improve the efficiency of shoe sole edge grinding and enhance the flexibility of the grinding device, this embodiment provides a new grinding device, which includes a turntable 1, support plates 2, support components 4, and two grinding wheels 3. The turntable 1 is connected to the top of the bottom column 11 via bearings and can rotate under external force. In addition, multiple support plates 2 are disposed on the turntable 1 and are distributed along the circumference of the turntable 1. Therefore, when the turntable 1 rotates, the multiple support plates 2 rotate synchronously with the turntable 1. The structure of the support plate 2 here is adapted to the structure of the bottom of the shoe sole. It is best to set it with the mold used to manufacture the shoe sole as a reference. At the same time, the size of the support plate 2 is smaller than the size of the shoe sole. Therefore, it is convenient for workers to place the shoe sole to be edged directly on the support plate 2. Under the action of the support plate 2, the shoe sole is driven to rotate with the turntable 1, so that multiple shoe soles are moved sequentially to the two grinding wheels 3. This changes the current situation of using vacuum suction cups to pick up and transfer shoe soles. Moreover, the support plate 2 can be disassembled and replaced according to different types of shoe soles to adapt to different shoe sole edged treatments. Under the action of the support component 4, the two grinding wheels 3 are stably and adjustablely positioned above the turntable 1. Therefore, after the shoe sole moves to the two grinding wheels 3, the two sides of the shoe sole are edged simultaneously with the cooperation of the two grinding wheels 3. This edged treatment method changes the current situation of manually holding the shoe sole for edged treatment, and correspondingly improves the efficiency of batch shoe sole edged treatment.

[0050] like Figure 2 , Figure 3As shown, to enable the movable installation of the turntable 1, the top of the base column 11 is designed to be open, and a top plate 17 is provided above the base column 11. An inner ring plate 16 is sleeved on the top plate 17 via a bearing connection. The inner ring plate 16 is installed inside the annular turntable 1, enabling the turntable 1 to be installed stably and movably, and providing support for the rotation of the turntable 1 under external force. To achieve a stable connection between the top plate 17 and the base column 11, multiple screws 18 are fixedly provided on the upper side of the base column 11. The top plate 17 is provided above the base column 11, and the top plate 17 is sleeved on the screws 18, with a nut threaded onto the top of the screw 18.

[0051] like Figure 2 As shown, in order to control the rotation of the turntable 1, a gear ring 14 is provided at the bottom of the inner ring plate 16, and a fifth motor is provided on the bottom column 11. A first gear 13 is fixedly provided on the output shaft of the fifth motor. The first gear 13 is meshed with the gear ring 14. Therefore, when the fifth motor is working, it drives the first gear 13 to rotate, which forces the gear ring 14 to rotate, thereby driving the inner ring plate 16 and the turntable 1 to rotate.

[0052] like Figure 5 , Figure 7 As shown, in order to ensure the stable installation of the grinding wheels 3, the central shafts of the two grinding wheels 3 are respectively set through two sets of bearing seats. The two sets of bearing seats are respectively installed at both ends below the first adjusting plate group 5, and the first adjusting plate group 5 is movably installed on the support component 4. Therefore, with the cooperation of the first adjusting plate group 5 and the support component 4, the grinding wheels 3 are stably installed, and the position of the grinding wheels 3 can be adjusted according to the needs, providing support for the edge grinding of the shoe sole.

[0053] like Figure 7 As shown, specifically, the first adjusting plate group 5 includes a horizontal plate 51, a base frame 55, etc. Two sets of base frames 55 are provided, each mounted on the bearing seats of one of the two grinding wheels 3, and a snap-fit ​​plate 57 is fixedly installed on the top of the base frame 55. Snap-fit ​​grooves 54 are provided at both ends below the horizontal plate 51, extending along the length of the horizontal plate 51. The ends of the two snap-fit ​​grooves 54 that are far apart from each other are open, thus allowing the snap-fit ​​plate 57 to be installed within the snap-fit ​​grooves 54 to achieve stable installation of the base frame 55.

[0054] like Figure 8As shown, in order to adjust the position of the base frame 55 and thus the relative position of the two grinding wheels 3 to provide support for the edge grinding of the shoe sole, a guide rod 58 is fixedly installed on the side of the buckle plate 57. The guide rod 58 passes through the blocking plate 59, which is bolted to the end of the buckle groove 54. A spring 56 is sleeved on the guide rod 58. The spring 56 is in a compressed state, and its two ends are connected to the blocking plate 59 and the buckle plate 57 respectively. Therefore, under the action of the spring 56, the two base frames 55 are forced to move closer to each other, and their relative positions can be adjusted according to the shape of the shoe sole, which facilitates the edge grinding of the shoe sole.

[0055] like Figure 6 As shown, in order to further adjust the position of the grinding wheel 3 and facilitate its movement from one end of the sole to the other, the support assembly 4 includes a main board 41 and a support frame 46. The main board 41 is L-shaped, and the support frame 46 is vertically positioned at the end of the main board 41. A first threaded rod 47 is provided on the support frame 46, and the end of the first threaded rod 47 is connected to the power output shaft of the fourth motor 45. A pressure bar 48 is provided in the middle of the lower part of the support frame 46. When the sole moves with the support plate 2 to the lower part of the support frame 46, the pressure bar 48 presses down, making the sole stably positioned relative to the support frame 46, providing support for the grinding wheel 3 to grind the sole. A fitting groove 53 is provided in the middle of the horizontal plate 51. The cross section of the fitting groove 53 is the same as the cross section of the support frame 46. Therefore, the horizontal plate 51 is fitted onto the support frame 46. The first threaded rod 47 is threaded through the threaded hole 52 of the horizontal plate 51. Therefore, under the operation of the fourth motor 45, the horizontal plate 51 can be controlled to move along the length direction of the support frame 46, thereby allowing the grinding wheel 3 to move from one end of the sole to the other end. During the movement, the grinding wheel 3 is used to grind the sole.

[0056] like Figure 3 , Figure 6 As shown, in order to adjust the height of the pressure rod 48, a drive plate 43 is inserted into the side of the main board 41. A second threaded rod 49 is threaded through the end of the drive plate 43, and the bottom of the second threaded rod 49 is connected to the power output shaft of the third motor 42. A through hole 19 is provided on the top plate 17, which is adapted to the main board 41, and the bottom of the main board 41 is provided through the through hole 19. The third motor 42 is installed below the top plate 17, and the power output shaft is connected through the top plate 17 via a bearing. Under the action of the through hole 19, the main board 41 is stably installed on the top plate 17, and the main board 41 can be raised and lowered relative to the top plate 17. Therefore, when the third motor 42 is working, the second threaded rod 49 rotates, controlling the rise and fall of the drive plate 43, thereby controlling the rise and fall of the main board 41, realizing the adjustment of the height of the support frame 46 and the pressure rod 48.

[0057] like Figure 6As shown, in order to stably mount the drive board 43 on the motherboard 41 and adapt to different needs, multiple sockets 44 are provided on the motherboard 41. The multiple sockets 44 are distributed along the height direction of the motherboard 41, and the end of the drive board 43 is inserted into the socket 44.

[0058] like Figure 7 As shown, the grinding wheel 3 can rotate when it can move along the support frame 46. A second sprocket 31 is provided at the top of the central shaft of the grinding wheel 3, and four third sprockets 32 are connected to the end of the support frame 46 via bearing seats. The four third sprockets 32 are located at the corners of the rectangle and are distributed on both sides of the two second sprockets 31. The distance between the two second sprockets 31 is greater than the width of the rectangle formed by the third sprockets 32. Therefore, when the second sprockets 31 and the third sprockets 32 are connected by the same tensioned chain, the second sprockets 31 have a long contact section with the chain. Thus, the rotation of the second sprockets 31 can be controlled under the transmission of the chain, thereby forcing the grinding wheel 3 to rotate. In order to control the rotation of the grinding wheel 3, the central shaft of one of the third sprockets 32 is connected to the power output shaft of the second motor 33. The second motor 33 is installed on the side of the support frame 46. Therefore, under the action of the second motor 33, the rotation of the third sprockets 32 and the second sprockets 31 can be controlled, driving the grinding wheel 3 to rotate.

[0059] like Figure 9 As shown, in order to adjust the position of the third sprocket 32 ​​as needed, a second adjusting plate group 6 is provided between the two third sprockets 32 located on the same side of the second sprocket 31. The second adjusting plate group 6 includes a sleeve 61 and two side frames 64. The sleeve 61 is connected to the support frame 46 through a connecting plate 62 at the top, and a rotating shaft 65 is provided below the sleeve 61 through a bearing connection. Third threaded rods 66 with opposite thread directions are fixedly provided at both ends of the rotating shaft 65. The two side frames 64 are respectively installed on the bearing seats of the two third sprockets 32, and an insert plate 63 is fixedly provided at the end of the two side frames 64 that are close to each other. The insert plate 63 is inserted into the sleeve 61 to realize the movable connection between the side frame 64 and the sleeve 61. At the same time, the third threaded rods 66 are threaded through the side frames 64. Therefore, when the rotating shaft 65 is rotated, the two third threaded rods 66 can be controlled to rotate, forcing the side frames 64 to move relative to the sleeve 61, thereby realizing the adjustment of the relative position of the third sprockets 32.

[0060] Example 2

[0061] like Figure 2 , Figure 4As shown, based on Embodiment 1, in order to achieve comprehensive grinding of the sole, multiple through holes 12 are provided on the turntable 1, and each of the multiple through holes 12 is paired with a multiple support plates 2. A central shaft is detachably installed below the support plate 2 by bolts. The central shaft passes through the through holes 12 and is sleeved on the bracket 21 by bearing connection. At the same time, the bracket 21 is installed on the lower side of the turntable 1 to achieve stable installation of the support plate 2.

[0062] In addition, a second gear is also provided on the central shaft, located below the first sprocket 22. A first motor 15 is provided on the base column 11, positioned adjacent to the grinding wheel 3 below it. A third gear is provided on the power output shaft of the first motor 15, meshing with the second gear. Therefore, when the turntable 1 moves the support plate 2 below the grinding wheel 3, the second and third gears mesh. Then, under the action of the first motor 15, the central shaft can be controlled to rotate the support plate 2, thereby adjusting the orientation of the sole so that the end of the sole contacts the grinding wheel 3, achieving the grinding treatment of the sole end. To facilitate the adjustment of the sole orientation, the pressure rod 48 should be movably connected to the support frame 46, for example, the top of the pressure rod 48 can be connected to the support frame 46 via a bearing.

[0063] To enable the various motors to work together, they can be configured as servo motors, stepper motors, etc. Additionally, an electrical control box is provided, which includes at least a controller (such as a PLC), relays, contactors, terminal blocks, a frequency converter, and a power module. The motors are connected to this control box. Specifically, each motor can be connected to a corresponding contactor or frequency converter, and the controller controls the contactor and frequency converter to start and stop the motor. During manufacturing, appropriate sensors, such as proximity sensors, can be installed as needed to detect when the shoe sole moves into position, sending a signal to the controller to trigger subsequent operations.

[0064] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0065] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. A shoe sole edging device characterized by, The rotating disc is installed on the bottom column, and a plurality of supporting plates are arranged on the rotating disc and evenly distributed along the circumferential direction of the rotating disc; A supporting assembly and two polishing wheels are arranged above the bottom column, the supporting assembly is installed on the bottom column in a lifting manner, the two polishing wheels are movably arranged on the supporting assembly, and the two polishing wheels are arranged adjacent to the upper side of the rotating disc, and the plurality of supporting plates are sequentially moved to the two polishing wheels.

2. The shoe sole edging device of claim 1, wherein The top of the bottom column is provided with an opening, and a plurality of screw rods are fixedly arranged on the upper side of the bottom column, and a top plate is arranged above the bottom column and sleeved on the screw rods.

3. The shoe sole edging device of claim 2, wherein The rotating disc is provided in a ring structure, an inner ring plate is fixedly arranged on the inner side of the rotating disc, and the inner ring plate is sleeved on the top plate through a bearing; a gear ring is arranged at the bottom of the inner ring plate, a fifth motor is arranged on the bottom column, a first gear is fixedly arranged on the output shaft of the fifth motor, and the first gear is connected in meshing with the gear ring.

4. The shoe sole edging device of claim 3, wherein A plurality of through holes are arranged on the rotating disc, the supporting plates are arranged at the through holes, the supporting plates are arranged above the rotating disc, a central shaft fixedly arranged at the bottom of each supporting plate penetrates the through holes, in addition, the central shaft penetrates a support through a bearing, and the support is installed on the lower side of the rotating disc.

5. The shoe sole edging device of claim 4, wherein A second gear is arranged on the central shaft, a first motor is arranged on the bottom column, the first motor is arranged adjacent to the lower side of the polishing wheel, a third gear is arranged on the power output shaft of the first motor, and the third gear is connected in meshing with the second gear.

6. The shoe sole edging device of claim 2, wherein The supporting assembly comprises a main plate and a supporting frame; the main plate is provided in an L-shaped structure, a driving plate is inserted and connected at the side edge of the main plate, a second threaded rod is threadedly penetrated at the end of the driving plate, and the bottom of the second threaded rod is connected with the power output shaft of a third motor; the supporting frame is vertically arranged at the end of the main plate, a first threaded rod is arranged on the supporting frame, and the end of the first threaded rod is connected with the power output shaft of a fourth motor.

7. The shoe sole edging device of claim 6, wherein A through hole is arranged on the top plate, the through hole is matched with the main plate, and the bottom of the main plate penetrates the through hole; the power output shaft of the third motor penetrates the top plate through a bearing; a plurality of insertion holes are arranged on the main plate, the insertion holes are distributed along the height direction of the main plate, and the end of the driving plate is inserted into the insertion hole.

8. The shoe sole edging device of claim 6, wherein The central shafts of the two polishing wheels respectively penetrate two sets of bearing seats, the two sets of bearing seats are respectively installed on two bottom frames, the top of the two bottom frames is connected with a horizontal plate, the horizontal plate penetrates the supporting frame, the supporting frame penetrates a sleeve slot in the middle of the horizontal plate, and the first threaded rod threadedly penetrates the horizontal plate; buckle grooves are arranged at the two ends below the horizontal plate, a buckle plate is fixedly arranged at the top of the bottom frame, guide rods are fixedly arranged at the side edges of the buckle plate, the guide rods penetrate plug plates, the buckle plate is arranged in the buckle groove, the plug plates are connected with the ends of the buckle groove through bolts, springs are sleeved on the guide rods, the springs are in a compressed state, and the two ends are respectively connected with the plug plates and the buckle plates.

9. The shoe sole edging device of claim 8, wherein The central shaft of the polishing wheel is provided with a second sprocket, and four third sprockets are provided at the corners of the rectangle and are distributed on the two sides of the two second sprockets, and the distance between the two second sprockets is greater than the width of the rectangle formed by the third sprockets; the central shaft of a certain third sprocket is connected with the power output shaft of the second motor, and the second sprocket and the third sprocket are connected through a chain.

10. The shoe sole edging device of claim 9, wherein A second adjusting plate set is arranged between the two third sprockets on the same side of the second sprocket, the second adjusting plate set comprises a sleeve and two side frames, the sleeve is connected with the supporting frame through the connecting plate at the top, and a rotating shaft is connected below the sleeve through a bearing, opposite third threaded rods are fixedly arranged at the two ends of the rotating shaft, the two side frames are respectively mounted on the bearing seats of the two third sprockets, and the ends of the two side frames close to each other are fixedly provided with an inserting plate, the inserting plate is inserted into the sleeve, and the third threaded rods are threaded through the side frames.

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