A shoe last self-adapting adjustment fixing clamp

Abstract

The utility model relates to the technical field of clamps, provide a kind of shoe tree self-adapting adjustment fixing clamp, comprising: workbench, still include: multiple fixed plates, equidistant fixed connection in the top of the workbench.The utility model, by rotating handle with hand, make it drive screw rod rotate, can make slider move along the outer surface of screw rod to one side, make limit roller two and the other side contact of shoe tree, shoe tree is clamped and fixed, simultaneously through the movement of movable plate, can drive movable block along the inside of L-shaped groove to one side sliding, make adjusting block exert a thrust to round bar two, simultaneously drive limit wheel two towards shoe tree front end moves, exert an action on shoe tree, and under the cooperation of limit wheel one, shoe tree is positioned before and after, such that only need to rotate handle, it can be realized to shoe tree's up and down left and right before and after clamping and fixing, operation is relatively simple, to improve the efficiency of shoe tree punching.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and in particular to a shoe last self-adjusting fixing clamp. Background Technology

[0002] The shoe last is the core mold in shoemaking, and its shape directly determines the internal structure and wearing comfort of the shoe. Based on the skeletal and motor characteristics of the human foot, it simulates the foot shape through three-dimensional curved surfaces, encompassing the curvature and space distribution of key areas such as the arch, toes, and heel. Traditional shoe lasts are mostly made of wood or plastic carving, while modern technology combines 3D scanning and digital modeling to achieve personalized customization.

[0003] In the prior art, such as Chinese Patent No. CN221734901U, a shoe last punching fixture belongs to the field of shoe manufacturing equipment technology. This shoe last punching fixture includes a base plate and a first clamping mechanism, a second clamping mechanism, and a third clamping mechanism installed on the base plate. The upper surface of the base plate is provided with a workstation for placing the shoe last. The first clamping mechanism is set at both ends of the workstation to fix the shoe last from both ends. The second clamping mechanism is set at the rear of both sides of the workstation to fix the heel of the shoe last from both sides. The third clamping mechanism is set at the front of one side of the workstation to fix the toe of the shoe last. With this structure, by setting the first clamping mechanism, the second clamping mechanism, and the third clamping mechanism, the two ends, the heels on both sides, and the toe on one side of the shoe last are clamped and fixed respectively, so that the shoe last is firmly fixed on the workstation, and the fixation is more secure, preventing longitudinal and lateral displacement or shaking during the punching operation, thereby improving the punching accuracy.

[0004] While the above-mentioned solution has the advantages mentioned above, its disadvantages are as follows: Although it can clamp and fix the two ends, the two sides of the heel, and one side of the toe of the shoe last by setting up the first clamping mechanism, the second clamping mechanism, and the third clamping mechanism respectively, so that the shoe last is firmly fixed in the work position and prevents longitudinal and lateral displacement or shaking during the drilling operation, thereby improving the drilling accuracy, it requires multiple rotations of the hand crank to fix the shoe last, which is relatively troublesome and reduces the efficiency of drilling the shoe last. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the existing technology that, although it can clamp and fix the two ends, the two sides of the heel, and one side of the toe of the shoe last by setting a first clamping mechanism, a second clamping mechanism, and a third clamping mechanism respectively, so that the shoe last is firmly fixed on the work position and the longitudinal and lateral displacement or shaking occurs during the drilling operation, thereby improving the drilling accuracy, it requires multiple rotations of the hand crank to fix the shoe last, which is relatively troublesome and reduces the efficiency of shoe last drilling.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a shoe last self-adjusting fixing clamp, comprising: a workbench, and further comprising:

[0007] Multiple fixed plates are equidistantly fixedly connected to the top of the workbench. Two mounting brackets are symmetrically fixedly connected to one side of each fixed plate. Two limiting rollers are symmetrically and detachably installed on one side of each mounting bracket. A sliding groove is provided on the top of the workbench. A lead screw is rotatably connected to the opposite side of the inner wall of the sliding groove. Multiple sliders are equidistantly threaded on the outer surface of the lead screw. A movable plate is fixedly connected to the top of each slider. Two mounting brackets are symmetrically fixedly connected to one side of each movable plate. Two limiting rollers are symmetrically and detachably installed on one side of each mounting bracket.

[0008] Preferably, the outer surfaces of the plurality of sliders are equidistantly slidably connected inside the slide groove, one end of the lead screw is fixedly connected to a crank handle, and the diameters of the plurality of limiting rollers one and the plurality of limiting rollers two are different.

[0009] Preferably, the top of the workbench is rotatably connected with multiple round rods at equal intervals, and one end of each round rod is fixedly connected to a limit wheel.

[0010] Preferably, the workbench has multiple L-shaped grooves equidistantly spaced at the top away from the first round rod. An I-shaped block is slidably connected inside the L-shaped groove. A second round rod is rotatably connected to the center of the I-shaped block. One end of the second round rod is fixedly connected to a second limit wheel.

[0011] Preferably, a movable block is slidably connected inside the L-shaped groove, and the movable block is fixedly connected to the movable plate.

[0012] Preferably, a circular block is fixedly connected to the bottom of the movable block, and a screw is threadedly connected to the bottom of the circular block.

[0013] Preferably, an adjusting block is movably connected to the outer surface of the screw, and a rubber pad is movably connected to the outer surface of the screw.

[0014] Preferably, the top of the adjusting block is provided with a guide groove, and the other end of the second round rod is movably connected inside the guide groove.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. This utility model allows the slider to move to one side along the outer surface of the screw by manually turning the crank handle. Simultaneously, this moves the movable plate, mounting bracket two, and limiting roller two to one side, bringing the limiting roller two into contact with the other side of the shoe last. One of the limiting roller two is located on the upper surface of the front end of the shoe last, clamping and fixing it. Simultaneously, the movement of the movable plate causes the movable block to slide to one side along the inside of the L-shaped groove, simultaneously moving the round block, screw, and adjusting block to one side. The adjusting block applies a pushing force to the round rod two, causing it to slide inside the guide groove. Simultaneously, the I-shaped block slides towards the center along the L-shaped groove, and the limiting wheel two moves towards the front end of the shoe last, applying a force to it. With the cooperation of the limiting wheel one, the shoe last is limited in its forward and backward movement. Thus, simply turning the crank handle achieves clamping and fixing of the shoe last in all directions, making operation simple and improving the efficiency of shoe last drilling.

[0017] 2. In this utility model, by manually rotating the screw downwards a suitable distance, the rubber pad is released from its tight position on the adjusting block. At this time, the adjusting block can rotate around the screw at a suitable angle, applying a force to the round rod two, causing the round rod two to slide along the guide groove a suitable distance. Simultaneously, the I-shaped block slides along the inside of the L-shaped groove a suitable distance, adjusting the initial position of the limiting wheel two appropriately. Then, the screw is rotated in the opposite direction, causing it to rotate into the round block, applying pressure to the adjusting block with the rubber pad, keeping the adjusting block in a relatively fixed state. This allows for appropriate adjustment according to the length of the shoe last, facilitating the application of a force to the shoe last when the limiting wheel two moves towards the front end of the shoe last. Attached Figure Description

[0018] Figure 1 A side view of the adaptive adjustment and fixing clamp for shoe lasts provided by this utility model;

[0019] Figure 2 A bottom view of the structure of a shoe last self-adjusting fixing clamp provided by this utility model;

[0020] Figure 3 This utility model provides a shoe last self-adjusting fixing clamp. Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a partially disassembled structural diagram of a shoe last adaptive adjustment and fixing clamp provided by this utility model.

[0022] Legend:

[0023] 1. Workbench; 101. Slide groove; 102. L-shaped groove; 103. Round rod one; 104. Limiting wheel one; 2. Fixed plate; 201. Mounting bracket one; 202. Limiting roller one; 203. Movable plate; 204. Mounting bracket two; 205. Limiting roller two; 206. Slider; 207. Lead screw; 208. Handle; 3. I-shaped block; 301. Round rod two; 302. Limiting wheel two; 303. Round block; 304. Adjusting block; 305. Guide groove; 306. Screw; 307. Rubber pad; 308. Movable block. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Examples, such as Figure 1 - Figure 4 As shown, this utility model provides a shoe last adaptive adjustment and fixing clamp, including: a workbench 1, and multiple fixing plates 2, which are equidistantly fixedly connected to the top of the workbench 1. Two mounting brackets 201 are symmetrically fixedly connected to one side of the fixing plates 2. Two limiting rollers 202 are symmetrically and detachably installed on one side of the mounting brackets 201. A slide groove 101 is provided on the top of the workbench 1. A lead screw 207 is rotatably connected to the opposite side of the inner wall of the slide groove 101. Multiple sliders 206 are equidistantly threaded on the outer surface of the lead screw 207. A movable plate 203 is fixedly connected to the top of the sliders 206. Two mounting brackets 204 are symmetrically fixedly connected to one side of the movable plate 203. Two limiting rollers 205 are symmetrically and detachably installed on one side of the mounting brackets 204.

[0027] Furthermore, such as Figure 1 - Figure 4 As shown, the outer surfaces of multiple sliders 206 are equidistantly slidably connected to the inside of the slide groove 101. One end of the lead screw 207 is fixedly connected to a crank handle 208. The diameters of multiple limiting rollers 1 202 and multiple limiting rollers 205 are different. Through the above settings, the sliders 206 can slide along the inside of the slide groove 101. The crank handle 208 facilitates the rotation of the lead screw 207. The different diameters of the limiting rollers 1 202 and limiting rollers 205 facilitate their cooperation with the side of the shoe last.

[0028] Furthermore, such as Figure 1 - Figure 4 As shown, multiple round rods 103 are equidistantly rotatably connected to the top of the workbench 1. One end of each round rod 103 is fixedly connected to a limiting wheel 104. The limiting wheel 104 facilitates the limiting of the heel of the shoe last.

[0029] Furthermore, such as Figure 1 - Figure 4 As shown, the workbench 1 has multiple L-shaped grooves 102 equidistantly spaced at the top away from the round rod 103. An I-shaped block 3 is slidably connected inside the L-shaped groove 102. A round rod 301 is rotatably connected to the center of the I-shaped block 3. One end of the round rod 301 is fixedly connected to a limiting wheel 302. With the above arrangement, the I-shaped block 3 can slide along the inside of the L-shaped groove 102, and simultaneously drive the limiting wheel 302 to move. The limiting wheel 302 can apply a force to the shoe last to limit its movement.

[0030] Furthermore, such as Figure 1 - Figure 4 As shown, a movable block 308 is slidably connected inside the L-shaped groove 102. The movable block 308 is fixedly connected to the movable plate 203. With the above arrangement, when the movable plate 203 moves, it can drive the movable block 308 to slide along the inside of the L-shaped groove 102.

[0031] Furthermore, such as Figure 1 - Figure 4 As shown, a circular block 303 is fixedly connected to the bottom of the movable block 308, and a screw 306 is threadedly connected to the bottom of the circular block 303. With the above arrangement, the screw 306 can be rotated into or out of the circular block 303.

[0032] Furthermore, such as Figure 1 - Figure 4 As shown, an adjusting block 304 is movably connected to the outer surface of the screw 306, and a rubber pad 307 is movably connected to the outer surface of the screw 306. With the above arrangement, when the screw 306 rotates into the round block 303, the rubber pad 307 can apply pressure to the adjusting block 304, so that the adjusting block 304 remains in a relatively fixed state.

[0033] Furthermore, such as Figure 1 - Figure 4 As shown, the top of the adjusting block 304 is provided with a guide groove 305, and the other end of the round rod 301 is movably connected to the inside of the guide groove 305. With the above arrangement, when the adjusting block 304 moves, the round rod 301 can be subjected to a force, causing the round rod 301 to slide along the inside of the guide groove 305.

[0034] Working principle: In use, the shoe last is placed on the workbench 1, with the heel of the shoe last in contact with the limiting wheel 104, causing one side of the shoe last to contact the limiting roller 202. Since the multiple limiting rollers 202 have different diameters, they respectively engage with the surface of one side of the shoe last. One limiting roller 202 is located on the upper surface of the front end of the shoe last. Then, by manually turning the crank handle 208, the screw 207 is rotated. Under the action of the threaded connection between the screw 207 and the slider 206, and with the cooperation of the guide groove 101 for limiting 106, the slider 206 can move along the outer surface of the screw 207. Moving to one side simultaneously moves the movable plate 203, mounting bracket 204, and limiting roller 205 to one side, causing the limiting roller 205 to contact the other side of the shoe last. One of the limiting rollers 205 is located on the upper surface of the front end of the shoe last, clamping and fixing it. Simultaneously, the movement of the movable plate 203 causes the movable block 308 to slide to one side along the interior of the L-shaped groove 102, simultaneously moving the round block 303, screw 306, and adjusting block 304 to one side. This causes the adjusting block 304 to apply a pushing force to the round rod 301, causing the round rod 301 to slide inside the guide groove 305. The synchronous movement of the I-shaped block 3 along the L-shaped groove 102 towards the center simultaneously drives the second limiting wheel 302 to move towards the front end of the shoe last, applying a force to the shoe last. With the cooperation of the first limiting wheel 104, the shoe last is limited in both directions. Thus, simply turning the crank handle 208 is sufficient to clamp and fix the shoe last in all directions, making operation relatively simple and improving the efficiency of drilling holes in the shoe last. By manually rotating the screw 306 downwards a suitable distance, the rubber pad 307 is released from its tight position against the adjusting block 304. At this point, the adjusting block 304 can rotate around the screw 306 at a suitable angle, allowing the adjusting block... 304 applies a force to the second round rod 301, causing the second round rod 301 to slide a suitable distance along the guide groove 305, simultaneously driving the I-shaped block 3 to slide a suitable distance along the inside of the L-shaped groove 102, thus appropriately adjusting the initial position of the second limiting wheel 302. Then, the screw 306 is rotated in the opposite direction, causing it to rotate into the round block 303, so that the rubber pad 307 applies pressure to the adjusting block 304, keeping the adjusting block 304 in a relatively fixed state. This allows for appropriate adjustment according to the length of the shoe last, making it convenient to apply a force to the shoe last when the second limiting wheel 302 moves towards the front end of the shoe last.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A shoe last self-adjusting fixing clamp, comprising: The workbench (1) is characterized by further comprising: Multiple fixed plates (2) are fixedly connected at equal intervals to the top of the workbench (1). Two mounting brackets (201) are symmetrically fixedly connected to one side of the fixed plate (2). Two limiting rollers (202) are symmetrically and detachably installed on one side of the mounting bracket (201). A slide groove (101) is provided on the top of the workbench (1). A lead screw (207) is rotatably connected to the opposite side of the inner wall of the slide groove (101). Multiple sliders (206) are equidistantly threaded on the outer surface of the lead screw (207). A movable plate (203) is fixedly connected to the top of the slider (206). Two mounting brackets (204) are symmetrically fixedly connected to one side of the movable plate (203). Two limiting rollers (205) are symmetrically and detachably installed on one side of the mounting brackets (204).

2. The shoe last self-adjusting fixing clamp according to claim 1, characterized in that: The outer surfaces of the multiple sliders (206) are equidistantly slidably connected to the inside of the slide groove (101), and one end of the lead screw (207) is fixedly connected to a crank (208). The diameters of the multiple limiting rollers (202) are different, and the diameters of the multiple limiting rollers (205) are different.

3. The shoe last self-adjusting fixing clamp according to claim 1, characterized in that: The top of the workbench (1) is equidistantly connected to a plurality of round rods (103), and one end of each round rod (103) is fixedly connected to a limit wheel (104).

4. The shoe last self-adjusting fixing clamp according to claim 3, characterized in that: The workbench (1) has multiple L-shaped grooves (102) equidistantly opened at the top away from the first round rod (103). The L-shaped groove (102) is slidably connected to the inside of the I-shaped block (3). The center of the I-shaped block (3) is rotatably connected to the second round rod (301). One end of the second round rod (301) is fixedly connected to the second limit wheel (302).

5. The shoe last self-adjusting fixing clamp according to claim 4, characterized in that: The L-shaped groove (102) has a sliding connection to a movable block (308), which is fixedly connected to the movable plate (203).

6. The shoe last self-adjusting fixing clamp according to claim 5, characterized in that: The bottom of the movable block (308) is fixedly connected to a round block (303), and the bottom of the round block (303) is threadedly connected to a screw (306).

7. A shoe last self-adjusting fixing clamp according to claim 6, characterized in that: An adjusting block (304) is movably connected to the outer surface of the screw (306), and a rubber pad (307) is movably connected to the outer surface of the screw (306).

8. The shoe last self-adjusting fixing clamp according to claim 7, characterized in that: The top of the adjusting block (304) is provided with a guide groove (305), and the other end of the round rod (301) is movably connected to the inside of the guide groove (305).

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