A sole polishing device

Abstract

The utility model discloses a kind of sole polishing device, the utility model relates to the field of shoe production auxiliary equipment, scheme includes: a kind of sole polishing device, including: base;Bearing platform, bearing platform sliding guide installation is in base;Two positioning supports, two positioning supports are oppositely set in the two sides of bearing platform;Positioning baffle, positioning baffle is set in the inboard of positioning support, and it is enclosed to form positioning area between two positioning baffles, and positioning baffle can self-adapting compensation displacement irregular contour fit;At least one drive component, drive component can drive one of positioning baffle relative to another positioning baffle movement;Supporting component, supporting component is installed in base;Guide sliding table, guide sliding table sliding guide installation is in supporting component, and guide sliding table can be moved to preset position;It can improve and sole irregular edge's fit tightness, effectively improve sole polishing processing precision.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for footwear production, specifically to a sole grinding device. Background Technology

[0002] In the footwear manufacturing production chain, sole polishing is a core process for ensuring product quality. For shoes using adhesive bonding, the surfaces where the sole meets the upper and midsole must be polished to effectively remove residual mold release agent, surface impurities, and factory protective coatings. By creating a moderately rough interface, the adhesive wetting and adhesion are strengthened, preventing later delamination at the bonded areas. For soles with burrs, protrusions, or flatness deviations at the edges after molding, precise polishing is required to achieve a regularized contour. This ensures the overall flatness of the sole and reduces early abnormal wear caused by burr friction. This process is particularly suitable for footwear with complex tread structures or high precision requirements.

[0003] A grinding device for shoe sole processing, disclosed in authorization announcement number (CN 222199980U), includes a worktable with a grinding table fixed on its upper surface. In actual operation, the shoe sole is placed between limiting plates on the fixed table, with the surface to be ground facing upwards to accommodate the grinding operation. Rotating the adjusting bolt drives the limiting plates to move inwards until they are tightly fitted to the edge of the shoe sole, thus achieving fixation. Finally, the area of ​​the shoe sole to be ground is ground.

[0004] The structure disclosed in this patent has defects in practical applications, specifically as follows: During the grinding of the sole surface, two limiting plates clamp the two edges of the sole, but the limiting plates are designed as straight plates, while the actual sole edges have irregular shapes. This insufficient adaptability of the structure results in the limiting plates not forming a fully fitted contact with the sole edges, making reliable clamping and positioning difficult. Under these circumstances, unstable sole positioning during grinding can easily cause displacement or wobbling, leading to deviations in grinding accuracy and affecting the processing quality of the sole. Utility Model Content

[0005] The purpose of this utility model is to provide a shoe sole grinding device, which addresses the problem of poor compatibility between the straight plate-shaped limiting structure and the irregular edge of the shoe sole in the existing technology, which leads to deviations in grinding accuracy. The device can improve the tightness of the fit with the irregular edge of the shoe sole and effectively improve the grinding accuracy of the shoe sole.

[0006] This utility model is achieved through the following technical solution:

[0007] A shoe sole grinding device includes: a base; a support platform, which is slidably mounted on the base; two positioning brackets, which are disposed opposite to each other on both sides of the support platform; positioning baffles, which are disposed inside the positioning brackets, and the two positioning baffles enclose a positioning area, wherein the positioning baffles can adaptively compensate for displacement and conform to irregular contours; at least one driving component, which can drive one of the positioning baffles to move relative to the other positioning baffle; a support component, which is mounted on the base; a guide slide, which is slidably mounted on the support component and can move to a preset position; and a grinding component, which is mounted on the guide slide and can perform grinding operations on various aspects of the shoe sole within the positioning area.

[0008] Furthermore, in this utility model, positioning grooves are respectively provided on both sides of the positioning bracket, and elastic elements are provided in the positioning grooves; positioning guide rods are respectively installed on both sides of the positioning baffle away from the positioning area, and the two positioning guide rods are respectively inserted into the corresponding positioning grooves; one end of the elastic element is connected to the inner wall of the positioning groove, and the other end of the elastic element is connected to the positioning guide rod.

[0009] Furthermore, in this utility model, positioning contact bodies are respectively provided on both sides of the positioning baffle near the positioning area, and the two positioning contact bodies can adaptively compensate for displacement and fit the irregular contour.

[0010] Furthermore, in this utility model, the aforementioned driving component includes an adjusting screw; the positioning bracket has an adjusting screw hole, and the adjusting screw passes through the adjusting screw hole, with the adjusting screw hole and the adjusting screw being threaded together; one end of the adjusting screw abuts against the positioning baffle, and the other end of the adjusting screw is located outside the adjusting screw hole.

[0011] Furthermore, in this utility model, the base is provided with two oppositely arranged first guide slides; the bottom of the bearing platform is provided with two oppositely arranged first slide blocks, and the two first slide blocks are respectively slidably engaged with the two first guide slides.

[0012] Furthermore, in this utility model, the aforementioned support assembly includes: two support columns, which are respectively installed on both sides of the base; and a transverse truss, which is installed between the two support columns.

[0013] Furthermore, in this utility model, the aforementioned transverse truss is provided with two oppositely arranged second guide rails; the bottom end of the guide slide is provided with two oppositely arranged second slide blocks, and the two second slide blocks are respectively slidably engaged with the two second guide rails; a drive assembly is provided on the transverse truss, and the drive assembly can drive the guide slide to move to a preset position.

[0014] Furthermore, in this utility model, the aforementioned drive assembly includes: a first motor, which is mounted on a transverse truss; and a first lead screw, one end of which is connected to the first motor, and the other end of which passes through a guide slide, wherein the first lead screw and the guide slide are connected by a thread.

[0015] Furthermore, in this utility model, the above-mentioned grinding assembly includes: a second motor mounted on a guide slide; a driving pulley mounted on the output end of the second motor; a transmission bracket disposed below the guide slide; a transmission shaft rotatably mounted on the transmission bracket; a driven pulley mounted on one end of the transmission shaft; a grinding disc mounted on the other end of the transmission shaft; and a transmission belt tensioned and fitted onto the outer circumferential surfaces of the driving pulley and the driven pulley to form a transmission engagement.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0017] 1. This application adopts an adaptive positioning baffle and a multi-component collaborative positioning structure. The gap fit between the positioning guide rod and the positioning slide provides freedom for the positioning baffle posture adjustment. The buffer feedback of the elastic element and the multi-point contact of the positioning contact body form a contour adaptation mechanism, which fundamentally solves the problem of insufficient adaptability of the traditional straight plate-shaped limiting structure to the irregular edge of the shoe sole, and ensures that the shoe sole always maintains a stable fit during the grinding process.

[0018] 2. The sliding guide of the bearing platform and the base of this application, combined with the lateral adjustment mechanism of the guide slide, constructs a multi-dimensional spatial adjustment system. The relative position of the grinding components and the sole can be flexibly adjusted according to the processing requirements of the sole, effectively overcoming the problem of limited grinding range in the fixed workstation mode, and significantly improving the all-round processing capability of complex contour soles. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 A schematic diagram of a shoe sole polishing device;

[0021] Figure 2 A schematic diagram showing the grinding assembly mounted on the guide slide via a lifting component;

[0022] Figure 3 This is a schematic diagram showing the cooperation between the positioning bracket and the positioning baffle.

[0023] Figure 4 This is a cross-sectional view showing the positioning bracket and positioning baffle working together.

[0024] The attached diagram shows the markings and corresponding component names:

[0025] 1-Base, 2-Bearing platform, 3-Positioning bracket, 4-Positioning baffle, 5-Adjusting screw, 6-Positioning contact body, 7-First guide rail, 8-First slide block, 9-Supporting column, 10-Transverse truss, 11-Second guide rail, 12-Second slide block, 13-Guide slide table, 14-First motor, 15-First lead screw, 16-Second motor, 17-Driving pulley, 18-Driven pulley, 19-Transmission belt, 20-Transmission bracket, 21-Transmission shaft, 22-Grinding disc, 23-Third motor, 24-Second lead screw, 25-Fourth motor, 26-Lifting bracket, 27-Third lead screw, 28-Guide spindle, 29-Positioning guide rod, 30-Positioning groove, 31-Elastic element, 32-Adjusting screw hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0027] Example

[0028] Please refer to Figures 1 to 4 This utility model provides a shoe sole grinding device. It includes a base 1, a support platform 2, two positioning brackets 3, two positioning baffles 4, at least one drive assembly, a support assembly, a guide slide 13, and a grinding assembly. The support platform 2 is mounted on the base 1 using a sliding guide structure, and can be translated along a first direction of the base 1 to a preset work position. The two positioning brackets 3 are arranged opposite each other on both sides of the support platform 2. The positioning baffles 4 are disposed inside the positioning brackets 3, and the two positioning baffles 4 enclose a positioning area for accommodating the shoe sole. The positioning baffles 4 have an adaptive displacement compensation function, enabling them to conform to the irregular contours of the shoe sole for positioning. The drive assembly is connected to the positioning baffles 4, and can drive one positioning baffle 4 to move relative to the other positioning baffle 4 to adjust the width of the positioning area to adapt to different shoe sole specifications.

[0029] The support assembly is installed on the base 1, and the guide slide 13 is assembled on the support assembly through a sliding guide mechanism. The guide slide 13 can be translated to a preset position along the second direction of the support assembly, thereby driving the grinding assembly installed on it to move synchronously along the second direction. By coordinating the movement of the bearing platform 2 along the first direction with the movement of the guide slide 13 along the second direction, the working range of the grinding assembly can cover the entire surface of the sole to be ground, thereby realizing the grinding processing of the sole in all directions within the positioning area.

[0030] During the sole positioning process, the sole is placed within the positioning area. The positioning baffles 4 on both sides clamp and position the sole from multiple contact points. Furthermore, the positioning baffles 4 can adaptively adjust according to the contour changes of the sole's sides, ensuring the sole maintains a stable posture during the polishing process. The operator adjusts the relative position of the positioning baffles 4 via the drive assembly to change the width of the positioning area to accommodate different sole models. Then, the polishing assembly is activated to perform the polishing operation on the surface of the sole to be polished.

[0031] It should be noted that this device is specifically designed for grinding and processing shoe outsoles, which consist of a midsole and an outsole. When positioning the outsole, it should be placed in the positioning area with the surface to be ground facing upwards. After the grinding components complete the preset grinding process, it can directly proceed to the bonding process with the midsole.

[0032] Please refer to Figure 3 and Figure 4 In some embodiments of this application, positioning slots 30 are provided on both sides of the positioning bracket 3, and each positioning slot 30 is equipped with an elastic element 31 (reset spring); positioning guide rods 29 are fixedly installed on both sides of the positioning baffle 4 away from the positioning area, and the two positioning guide rods 29 correspond one-to-one with the two positioning slots 30 and slide into the interior of the positioning slots 30. One end of the elastic element 31 is fixedly connected to the inner side wall of the positioning slot 30, and the other end is fixedly connected to the end of the positioning guide rod 29.

[0033] When the positioning baffle 4 moves under force, it drives the elastic element 31 to undergo tensile or compressive deformation. When the positioning baffle 4 contacts the edge of the sole, it can rely on the sliding engagement of the positioning guide rod 29 along the positioning groove 30, combined with the real-time elastic feedback of the elastic element 31, to adaptively adjust its posture according to the irregular contour of the sole edge, so that the positioning baffle 4 closely contacts the sole edge in an inclined state that conforms to the contour. This structure, through the guiding constraint of the positioning guide rod 29 and the positioning groove 30 and the buffer compensation of the elastic element 31, ensures positioning stability and avoids damage to the sole caused by rigid contact, thus realizing the adaptive positioning function.

[0034] Please refer to Figure 4 It should be noted that the inner diameter of the positioning groove 30 is larger than the outer diameter of the positioning guide rod 29, creating a circumferential offset gap for the positioning guide rod 29 within the positioning groove 30. When the positioning baffle 4 contacts the irregular contour of the shoe sole, the positioning baffle 4 tilts according to the contour shape, simultaneously causing the positioning guide rod 29 to adaptively offset along the circumferential direction within the positioning groove 30.

[0035] The gap between the positioning groove 30 and the positioning guide rod 29 provides the necessary degree of freedom for the posture adjustment of the positioning baffle 4, ensuring that the positioning baffle 4 can change the contact angle in real time according to the contour of the shoe sole. This overcomes the limitations of rigid connection, improves the adaptability of the positioning structure to irregular contours through the gap compensation mechanism, and ensures contact stability through dynamic posture adjustment, laying a structural foundation for the implementation of grinding operations.

[0036] Please refer to Figure 3 In some embodiments of this application, positioning contact bodies 6 are respectively installed on both sides of the positioning baffle 4 near the positioning area. The positioning contact bodies 6 integrate adaptive displacement compensation functions, enabling a close fit with the irregular contours of the shoe sole. During positioning, the positioning baffle 4 adjusts its tilt angle in real time according to the contour of the shoe sole, thereby creating positioning support for the shoe sole from the two positioning contact bodies 6. When the positioning baffle 4 tilts, it synchronously drives the two positioning contact bodies 6 to complete their posture adaptation, allowing the positioning contact bodies 6 to achieve surface contact with the edge of the shoe sole at an angle matching the contour. This effectively avoids positioning instability caused by single-point contact, comprehensively improving the reliability of the positioning system.

[0037] In some embodiments of this application, if it is necessary to adjust the positioning area to fit the shoe sole specifications, the operator can rotate the adjusting screw 5 to drive the adjusting screw 5 to move using the transmission characteristics of the thread: when the adjusting screw 5 moves towards the positioning baffle 4, the end of the adjusting screw 5 pushes against the positioning baffle 4 to approach another positioning baffle 4 until the positioning baffle 4 contacts the edge of the shoe sole; at this time, the adjusting screw 5 is continuously driven, and the positioning baffle 4 will complete the posture adjustment with the edge contour of the shoe sole based on the aforementioned adaptive structure, and finally achieve stable positioning of the shoe sole through the two positioning contact bodies 6.

[0038] When it is necessary to move the two positioning baffles 4 away from each other, the adjusting screw 5 is rotated in the opposite direction to move it away from the positioning baffles 4. Under the action of the reset elastic force of the elastic element 31, the positioning baffles 4 move in the opposite direction synchronously, thereby expanding the positioning area.

[0039] Please refer to Figure 1 In some embodiments of this application, two first guide rails 7 are installed in parallel on the base 1, and two first slide blocks 8 are correspondingly provided at the bottom of the support platform 2. The two first slide blocks 8 and the two first guide rails form a matching sliding structure. The support platform 2 can reciprocate along the extension direction of the first guide rails 7, thereby driving the sole of the shoe in the positioning area to complete the spatial position adjustment, providing a suitable working alignment reference for the grinding components.

[0040] The base 1 integrates and mounts the third motor 23. The output end of the third motor 23 is rigidly connected to the second lead screw 24. The end of the second lead screw 24 away from the third motor 23 forms a rotational support for the base 1 through the bearing seat. At the same time, the second lead screw 24 passes through the bottom of the bearing platform 2 and forms a helical transmission.

[0041] In some embodiments of this application, the support assembly adopts a double-column portal frame design, consisting of two support columns 9 and a transverse truss 10: the two support columns 9 are symmetrically installed on both sides of the base 1 to form support, and the transverse truss 10 is rigidly connected to the top of the two support columns 9 to form an overall frame. The guide slide 13 is slidably assembled on the transverse truss 10, and the guide slide 13 can move along the extension direction of the transverse truss 10, thereby carrying the grinding assembly and adjusting it to the preset working position, providing a spatial positioning reference for the shoe sole grinding operation.

[0042] Specifically, two parallel second guide rails 11 are arranged on the transverse truss 10, and two parallel second slide blocks 12 are fitted on the bottom of the guide slide 13. The two second slide blocks 12 and the two second guide rails 11 form a one-to-one sliding engagement. The transverse truss 10 is equipped with a drive assembly, which can drive the guide slide 13 to reciprocate linearly along the extension direction of the second guide rails 11, thereby adjusting the guide slide 13 to a preset working position.

[0043] The first motor 14 is mounted on the transverse truss 10. The input end of the first lead screw 15 is rigidly connected to the output shaft of the first motor 14 through a coupling. The output end of the first lead screw 15 passes through the guide slide 13 axially and forms a threaded engagement. The output end of the first lead screw 15 is rotatably connected through a bearing seat.

[0044] During operation, the rotational motion output by the first motor 14 is transmitted to the first lead screw 15, causing the first lead screw 15 to rotate. Relying on the helical transmission characteristics of the first lead screw 15 and the guide slide 13, the guide slide 13 is driven to move linearly along the second guide slide rail 11.

[0045] In some embodiments of this application, the grinding assembly is mounted on the guide slide 13 via a lifting assembly, and the output end of the second motor 16 is fitted with a drive pulley 17. A transmission bracket 20 is fixedly installed at the bottom of the lifting assembly, and a transmission shaft 21 is rotatably supported on the transmission bracket 20 via rolling bearings. One end of the transmission shaft 21 is fitted with a driven pulley 18, and the other end is fixedly connected to the grinding disc 22. The transmission belt 19 is fitted in a taut, closed-loop manner around the outer circumferential surfaces of the drive pulley 17 and the driven pulley 18, forming a friction transmission engagement. The second motor 16 drives the drive pulley 17 to rotate, which in turn drives the driven pulley 18 to rotate via the transmission belt 19, thereby causing the transmission shaft 21 to drive the grinding disc 22 to rotate at high speed to perform the grinding operation.

[0046] It should be noted that the transmission belt 19 adopts a tensioning sleeve structure, and the preset tension ensures that it forms sufficient contact pressure with the outer circumferential surfaces of the driving pulley 17 and the driven pulley 18, thereby increasing the contact area between the transmission belt 19 and the pulleys to improve the stability of the wrap angle and avoid transmission failure caused by an excessively small wrap angle.

[0047] Please refer to Figure 2 The lifting assembly consists of a lifting bracket 26, a fourth motor 25, a third lead screw 27, and a guide spindle 28. The fourth motor 25 is mounted on the lifting bracket 26, and its output end is rigidly connected to the third lead screw 27. The third lead screw 27 passes through the guide slide 13 axially and forms a threaded engagement. One end of the guide spindle 28 is rigidly connected to the lifting bracket 26, and the other end passes through the guide slide 13 axially to form a sliding guide engagement. The rotational power output by the fourth motor 25 drives the third lead screw 27 to rotate synchronously, thereby driving the grinding disc 22 to complete the feed adjustment.

[0048] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A sole grinding device, characterized by, include: Base (1); A support platform (2) is slidably mounted on the base (1); Two positioning brackets (3) are arranged opposite to each other on both sides of the bearing platform (2); Positioning baffle (4), the positioning baffle (4) is disposed on the inner side of the positioning bracket (3), and the two positioning baffles (4) enclose a positioning area. The positioning baffle (4) can adaptively compensate for displacement and fit irregular contours. At least one drive component, the drive component being capable of driving one of the positioning baffles (4) to move relative to the other positioning baffle (4); A support assembly, which is mounted on the base (1); A guide slide (13) is slidably mounted on the support assembly and can be moved to a preset position; A polishing assembly is mounted on the guide slide (13) and is capable of polishing the sole of the shoe in the positioning area in various directions.

2. The shoe sole grinding device according to claim 1, characterized in that, The positioning bracket (3) has positioning grooves (30) on both sides, and an elastic element (31) is provided in the positioning groove (30); Positioning guide rods (29) are respectively installed on both sides of the positioning baffle (4) away from the positioning area, and the two positioning guide rods (29) are respectively inserted into the corresponding positioning grooves (30); One end of the elastic element (31) is connected to the inner wall of the positioning groove (30), and the other end of the elastic element (31) is connected to the positioning guide rod (29).

3. The shoe sole grinding device according to claim 2, characterized in that, The positioning baffle (4) is provided with positioning contact bodies (6) on both sides near the positioning area. The two positioning contact bodies (6) can adaptively compensate for displacement and fit the irregular contour.

4. The shoe sole grinding device according to claim 3, characterized in that, The drive assembly includes an adjusting screw (5); The positioning bracket (3) has an adjusting screw hole (32), and the adjusting screw (5) passes through the adjusting screw hole (32). The adjusting screw hole (32) and the adjusting screw (5) are threaded together. One end of the adjusting screw (5) abuts against the positioning baffle (4), and the other end of the adjusting screw (5) is located outside the adjusting screw hole (32).

5. The shoe sole polishing apparatus according to any one of claims 1 to 4, characterized in that, The base (1) is provided with two opposing first guide slides (7); The bottom end of the bearing platform (2) is provided with two oppositely arranged first slide blocks (8), and the two first slide blocks (8) are respectively slidably engaged with the two first guide slide rails (7).

6. The shoe sole polishing apparatus according to any one of claims 1 to 4, characterized in that, The support components include: Two support columns (9) are respectively installed on both sides of the base (1); A transverse truss (10) is installed between two of the supporting columns (9).

7. The shoe sole grinding device according to claim 6, characterized in that, The transverse truss (10) is provided with two oppositely arranged second guide rails (11); The bottom end of the guide slide (13) is provided with two oppositely arranged second slide blocks (12), and the two second slide blocks (12) are respectively in one-to-one sliding cooperation with the two second guide slide rails (11); A drive assembly is provided on the transverse truss (10), which can drive the guide slide (13) to move to a preset position.

8. The shoe sole grinding device according to claim 7, characterized in that, The driving component includes: The first motor (14) is mounted on the transverse truss (10); The first lead screw (15) is connected at one end to the first motor (14), and at the other end of the first lead screw (15) passes through the guide slide (13). The first lead screw (15) and the guide slide (13) are connected by a thread.

9. The shoe sole grinding device according to claim 7 or 8, characterized in that, The polishing components include: The second motor (16) is mounted on the guide slide (13); A drive pulley (17) is mounted on the output end of the second motor (16); A transmission bracket (20) is disposed below the guide slide (13); A drive shaft (21) is rotatably mounted on the drive bracket (20); Driven pulley (18), the driven pulley (18) is mounted on one end of the drive shaft (21); A grinding disc (22) is mounted on the other end of the drive shaft (21); A transmission belt (19) is tensioned and fitted onto the outer circumferential surfaces of the driving pulley (17) and the driven pulley (18) to form a transmission engagement.

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