Last fixing jig
By designing a shoe last fixing fixture and utilizing the cooperation of a drive mechanism and a locking mechanism, the problem of unstable clamping of shoe lasts during processing was solved, thereby improving the stability of shoe lasts and processing precision, and increasing shoe manufacturing efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东腾誉龙自动化设备有限公司
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-21
AI Technical Summary
In the existing technology, when pneumatic grippers are used to fix the shoe last during the production and processing, the clamping area is insufficient, resulting in poor clamping and fixing effect.
A shoe last fixing fixture is designed, including a base, a drive mechanism, a movable mechanism, and a locking mechanism. The shoe last is precisely controlled by a drive shaft, a drive wheel, and a transmission belt. The movable mechanism is used to fix the sides of the shoe last, and the locking mechanism is used to fix the ends of the shoe last, ensuring the stability and efficiency of the shoe last during the processing.
This improves the stability and efficiency of shoe lasts during processing, prevents lateral shifting or wobbling, ensures the overall stability and processing precision of shoe lasts, and enhances the quality and consistency of shoemaking processes.
Smart Images
Figure CN224522482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shoemaking technology, specifically to a shoe last fixing fixture. Background Technology
[0002] The shoe last is a traditional Chinese shoemaking tool. It is the base of the shoe and the mold for shaping it. The shoe last not only determines the shape and style of the shoe, but also whether the shoe fits the foot and can protect it. Therefore, the shoe last plays a very important role in the shoe production process.
[0003] In the current production and processing of shoe lasts, it is necessary to fix them. Usually, pneumatic clamps are used to fix the shoe lasts directly. However, this method can only clamp the part of the pneumatic clamps that is in contact with the shoe last. The clamping area is not large enough, and the clamping and fixing effect is poor. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a shoe last fixing fixture, which solves the problem that in the existing shoe last production and processing, when it is necessary to fix the shoe last, pneumatic clamps are usually used to fix the shoe last directly. However, this method can only clamp the part of the pneumatic clamp that is in contact with the shoe last, resulting in an insufficient clamping area and poor clamping and fixing effect. The technical solution adopted by this utility model is as follows: a shoe last fixing fixture, including a base, a driving mechanism, a movable mechanism, and a locking mechanism; the driving mechanism includes a driving shaft, a driving wheel, a driven wheel, and a transmission belt; the driving shaft is movable on the base, the driving wheel is disposed on the driving shaft, the driven wheel is movable within the movable mechanism and connected to the locking mechanism, and the transmission belt is respectively sleeved on the driving wheel and the driven wheel; one end of the driving shaft is connected to drive the driving wheel to drive the movable mechanism and the locking mechanism for positioning and locking through the transmission belt and the driven wheel; the movable mechanism is used to fix the two sides of the shoe last, and the locking mechanism is used to fix the end of the shoe last.
[0005] A further improvement to the above solution is that an assembly plate is provided on the base, and multiple assembly pins are provided on the assembly plate. The multiple assembly pins are located on both sides of the assembly plate for positioning and assembly of the drive mechanism.
[0006] A further improvement to the above scheme is that the drive wheel also includes an upper wheel and a lower wheel, which are respectively sleeved on both ends of the drive shaft to assist the drive wheel in driving; the outer wall surface of the driven wheel is provided with an external thread, which is encircled on the driven wheel.
[0007] A further improvement to the above solution is that the movable mechanism includes a movable rod, a movable block, and a clamping block; the movable rod is movably inserted into the driven wheel, the movable block is disposed on both sides of the movable rod, and the clamping block is disposed on the movable block; the movable block moves up and down along the movable rod to drive the clamping block to perform opening and closing clamping activities.
[0008] A further improvement to the above solution is that the outer ring of the movable rod is provided with an internal thread, which cooperates with the external thread so that the drive mechanism drives the movable mechanism to move.
[0009] A further improvement to the above solution is that when the movable rod moves up or down, the movable rod drives the clamping block through the movable block to relatively press or open the two sides of the shoe last, so that the clamping block fixes the two sides of the shoe last.
[0010] A further improvement to the above solution is that a fixing component is provided on the side of the active mechanism near the locking mechanism, and the fixing component is used to fix the shoe toe; the fixing component includes a fixing seat, a fixing rod, and a fixing head; the fixing seat is disposed on the drive mechanism, the fixing rod is disposed on the fixing seat, and the fixing head is disposed on the fixing rod.
[0011] A further improvement to the above solution is that the locking mechanism includes a pull rod, a shrinking element, and shrinking blocks. The pull rod is mounted on a movable rod, the shrinking element is mounted on the pull rod, and the shrinking blocks are mounted on both sides of the shrinking element. The pull rod moves through the movable rod to push the shrinking element to expand and contract with the mounting hole in the shoe last, and is fixed by the shrinking blocks.
[0012] A further improvement to the above scheme is that a push block is provided at the bottom of the expansion and contraction block, and two sets of push blocks are provided, with the two sets of push blocks arranged opposite to each other. The push blocks are used to assist the expansion and contraction block in its expansion and contraction activities.
[0013] A further improvement to the above solution is that when the movable rod moves up or down, the pull rod drives the expansion and contraction element to rise or fall, so that the expansion and contraction block can be relatively compressed or opened through the push block, so that the expansion and contraction element can adapt to the mounting holes on the shoe last, so that the locking mechanism locks the end of the shoe last. The beneficial effects of this utility model are: Compared to existing shoe manufacturing processes, this invention achieves precise control of the moving and locking mechanisms through a drive mechanism. When the drive shaft rotates, the drive wheel rotates accordingly, and the power is transmitted to the driven wheel through the transmission belt, thereby driving the moving and locking mechanisms to position and lock, ensuring the stability and efficiency of the shoe last during the fixing process. The moving mechanism is used to fix the sides of the shoe last, which can closely fit the contour of the shoe last and effectively prevent it from shifting or shaking during processing. The locking mechanism focuses on fixing the ends of the shoe last. Through precise adjustment and locking, the overall stability of the shoe last is ensured. The overall structure is compact and highly practical. Attached Figure Description
[0014] Figure 1 This is a perspective view of the shoe last fixing fixture of this utility model; Figure 2 This is a schematic diagram of the structure of the shoe last fixing fixture of this utility model; Figure 3 for Figure 2 Top view in the middle; Figure 4 for Figure 3 Sectional view at point AA; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 3 Sectional view at point B_B.
[0015] Explanation of reference numerals in the attached drawings: base 10, mounting plate 11, mounting pin 12; Drive mechanism 20, drive shaft 21, drive wheel 22, upper wheel 221, lower wheel 223, driven wheel 23, external thread 231, transmission belt 24; 30. Movable mechanism; 31. Movable rod; 32. Movable block; 33. Clamping block; 34. Fixing component; 35. Fixing base; 36. Fixing rod; 37. Fixing head; Locking mechanism 40, pull rod 41, expansion and contraction element 42, expansion and contraction block 43, push block 431. Detailed Implementation
[0016] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0017] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0019] like Figure 1-6 As shown in the embodiment of this utility model, a shoe last fixing fixture for fixing shoe lasts includes a base 10, a drive mechanism 20, a movable mechanism 30, and a locking mechanism 40. The drive mechanism 20 includes a drive shaft 21, a drive wheel 22, a driven wheel 23, and a transmission belt 24. The drive shaft 21 is movable on the base 10, the drive wheel 22 is disposed on the drive shaft 21, the driven wheel 23 is movable within the movable mechanism 30 and connected to the locking mechanism 40, and the transmission belt 24 is respectively sleeved on the drive wheel 22 and the driven wheel 23. One end of the drive shaft 21 is connected to drive the drive wheel 22 to drive the movable mechanism 30 and the locking mechanism 40 for positioning and locking through the transmission belt 24 and the driven wheel 23. The movable mechanism 30 is used to fix the two sides of the shoe last, and the locking mechanism 40 is used to fix the end of the shoe last. In this embodiment, the drive mechanism 20 enables precise control of the movable mechanism 30 and the locking mechanism 40. When the drive shaft 21 rotates, the drive wheel 22 rotates accordingly and transmits power to the driven wheel 23 through the transmission belt 24, thereby driving the movable mechanism 30 and the locking mechanism 40 to perform positioning and locking, ensuring the stability and efficiency of the shoe last during the fixing process. The movable mechanism 30 is used to fix the sides of the shoe last, which can closely fit the contour of the shoe last and effectively prevent it from shifting or shaking during processing. The locking mechanism 40 focuses on fixing the end of the shoe last. Through precise adjustment and locking, the overall stability of the shoe last is ensured. The overall structure is compact and highly practical.
[0020] like Figures 1 to 3 An assembly plate 11 is provided on the base 10, and a plurality of assembly pins 12 are provided on the assembly plate 11. These assembly pins 12 are located on both sides of the assembly plate 11 and are used for positioning and assembling the drive mechanism 20. In this embodiment, the assembly pins 12 on the assembly plate 11 provide precise positioning points for the drive mechanism 20, ensuring its stability and accuracy during the assembly process. like Figure 4As shown, the drive wheel 22 also includes an upper wheel 221 and a lower wheel 223, which are respectively sleeved on both ends of the drive shaft 21 to assist the drive wheel 22 in driving. In this embodiment, the rotational movement of the upper wheel 221 and the lower wheel 223 can distribute the driving load, improve driving efficiency, ensure that the shoe last fixing fixture operates more smoothly and reliably, reduce maintenance costs and replacement frequency, optimize the performance of the shoe last fixing fixture, and improve its working efficiency and service life.
[0021] The outer wall of the driven wheel 23 is provided with an external thread 231, which is arranged around the driven wheel 23. In this embodiment, the external thread 231 arranged around the driven wheel 23 greatly enhances the connection stability and tightness between the driven wheel 23 and the movable rod 31; it allows the driven wheel 23 to lock the shoe last more firmly, preventing displacement or shaking during processing, thereby improving the accuracy and efficiency of shoe last processing.
[0022] like Figures 4 to 6 As shown, the movable mechanism 30 includes a movable rod 31, a movable block 32, and a clamping block 33. The movable rod 31 is movably inserted into the driven wheel 23. The movable block 32 is disposed on both sides of the movable rod 31, and the clamping block 33 is disposed on the movable block 32. The movable block 32 moves up and down along the movable rod 31 to drive the clamping block 33 to open and close for clamping. In this embodiment, through the synergistic effect of the movable rod 31, the movable block 32, and the clamping block 33, a highly efficient shoe last fixing function is achieved. The movable rod 31, inserted into the driven wheel 23, ensures the stable operation of the mechanism. The movable block 32, disposed on both sides of the movable rod 31, can move up and down freely along the rod, giving the mechanism flexible adjustment performance. The clamping block 33 is installed on the movable block 32 and opens and closes with the movement of the movable block 32, precisely controlling the clamping force, effectively fixing the shoe last, and preventing it from shifting or loosening during processing.
[0023] The outer ring of the movable rod 31 is provided with an internal thread, which mates with the external thread 231, so that the drive mechanism 20 drives the movable mechanism 30 to move. In this embodiment, the precise mating between the internal thread and the external thread 231 on the outer ring of the movable rod 31 ensures that the drive mechanism 20 can effectively and stably transmit power to the movable mechanism 30, enhancing the structural stability and improving the transmission accuracy; thus meeting the high requirements of precision and stability in shoemaking processes.
[0024] When the movable rod 31 moves up or down, it drives the clamping block 33 via the movable block 32 to relatively press or open the two sides of the shoe last, thus fixing the two sides of the shoe last with the clamping block 33. In this embodiment, through the linkage of the movable block 32, the clamping block 33 is effectively driven to relatively press or open the two sides of the shoe last; this allows the clamping block 33 to flexibly adapt to shoe lasts of different sizes and shapes, ensuring that the shoe last remains stable and fixed during processing; it achieves precise clamping and fixing of the two sides of the shoe last, which not only improves the accuracy and efficiency of shoe last processing, but also helps to reduce processing errors caused by shoe last shaking, thereby ensuring the quality and consistency of the finished shoe last.
[0025] A fixing component 34 is provided on the side of the movable mechanism 30 near the locking mechanism 40. The fixing component 34 is used to fix the shoe toe. The fixing component 34 includes a fixing base 35, a fixing rod 36, and a fixing head 37. The fixing base 35 is mounted on the drive mechanism 20, the fixing rod 36 is mounted on the fixing base 35, and the fixing head 37 is mounted on the fixing rod 36. In this embodiment, the fixing component 34 is used to fix the shoe toe and cooperates with the movable mechanism 30 and the locking mechanism 40 to greatly enhance the stability of the shoe last, so as to facilitate the processing and use of the shoe last. The structure is compact and highly practical.
[0026] The locking mechanism 40 includes a pull rod 41, an expansion / contraction element 42, and expansion / contraction blocks 43. The pull rod 41 is mounted on a movable rod 31, the expansion / contraction element 42 is mounted on the pull rod 41, and the expansion / contraction blocks 43 are located on both sides of the expansion / contraction element 42. The pull rod 41 moves through the movable rod 31 to push the expansion / contraction element 42 to expand / contract with the assembly hole inside the shoe last, and is fixed by the expansion / contraction blocks 43. In this embodiment, the cooperation between the pull rod 41 and the movable rod 31 achieves flexible control and can precisely drive the expansion / contraction element 42. The design of the expansion / contraction element 42 and the expansion / contraction blocks 43 on both sides allows the mechanism to tightly fit with the assembly hole inside the shoe last, realizing the expansion / contraction function and improving the convenience of assembly; effectively meeting the precision and efficiency requirements of the shoe last fixing fixture.
[0027] The bottom of the expansion / contraction block 43 is provided with a push block 431. Two sets of push blocks 431 are arranged opposite each other, and the push blocks 431 assist the expansion / contraction block 43 in its expansion and contraction activities. In this embodiment, the two sets of oppositely arranged push blocks 431 effectively improve the working performance of the expansion / contraction block 43. As an auxiliary actuator, the push blocks 431 form a linkage mechanism with the expansion / contraction block 43. The bidirectional push block layout achieves symmetrical force application, ensuring the balance of the expansion and contraction actions. The push blocks 431 act directly on the bottom of the expansion / contraction block 43, resulting in a short force transmission path and enhanced positioning stability of the fixture.
[0028] When the movable rod 31 moves up or down, the pull rod 41 drives the expansion and contraction element 42 to rise or fall, causing the expansion and contraction block 43 to be relatively compressed or expanded through the push block 431. This allows the expansion and contraction element 42 to adaptively match the mounting holes on the shoe last, enabling the locking mechanism 40 to lock the end of the shoe last. In this embodiment, the up and down movement of the movable rod 31 drives the pull rod 41 in conjunction, causing the expansion and contraction element 42 to generate axial displacement. Under the action of the push block 431, the expansion and contraction block 43 achieves radial compression or expansion movement, forming an adaptive adjustment mechanism. This allows the expansion and contraction element 42 to automatically adjust according to the actual size of the mounting holes on the shoe last, ensuring a precise fit between the locking mechanism 40 and the end of the shoe last.
[0029] A shoe last fixing fixture for fixing shoe lasts includes a base 10, a drive mechanism 20, a movable mechanism 30, and a locking mechanism 40. The drive mechanism 20 includes a drive shaft 21, a drive wheel 22, a driven wheel 23, and a transmission belt 24. The drive shaft 21 is movable on the base 10, the drive wheel 22 is mounted on the drive shaft 21, the driven wheel 23 is movable within the movable mechanism 30 and connected to the locking mechanism 40, and the transmission belt 24 is respectively sleeved on the drive wheel 22 and the driven wheel 23. One end of the drive shaft 21 is connected to drive the drive wheel 22 to drive the movable mechanism 30 and the locking mechanism 40 for positioning and locking via the transmission belt 24 and the driven wheel 23. The movable mechanism 30 is used to fix the two sides of the shoe last, and the locking mechanism 40 is used to fix the end of the shoe last. In this embodiment, the drive mechanism 20 enables precise control of the movable mechanism 30 and the locking mechanism 40. When the drive shaft 21 rotates, the drive wheel 22 rotates accordingly and transmits power to the driven wheel 23 through the transmission belt 24, thereby driving the movable mechanism 30 and the locking mechanism 40 to perform positioning and locking, ensuring the stability and efficiency of the shoe last during the fixing process. The movable mechanism 30 is used to fix the sides of the shoe last, which can closely fit the contour of the shoe last and effectively prevent it from shifting or shaking during processing. The locking mechanism 40 focuses on fixing the end of the shoe last. Through precise adjustment and locking, the overall stability of the shoe last is ensured. The overall structure is compact and highly practical.
[0030] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A shoe last fixing fixture for fixing shoe lasts, characterized in that: Includes a base, drive mechanism, moving mechanism, and locking mechanism; The driving mechanism includes a drive shaft, a drive wheel, a driven wheel, and a transmission belt. The drive shaft is movable on the base, the drive wheel is mounted on the drive shaft, the driven wheel is movable within the movable mechanism and connected to the locking mechanism, and the transmission belt is respectively sleeved on the drive wheel and the driven wheel. One end of the drive shaft is connected to drive the drive wheel, which drives the movable mechanism and the locking mechanism through the transmission belt and the driven wheel for positioning and locking. The movable mechanism is used to fix the two sides of the shoe last, and the locking mechanism is used to fix the end of the shoe last.
2. The shoe last fixing fixture according to claim 1, characterized in that: An assembly plate is provided on the base, and multiple assembly pins are provided on the assembly plate. The multiple assembly pins are located on both sides of the assembly plate and are used for positioning and assembling the drive mechanism.
3. The shoe last fixing fixture according to claim 1, characterized in that: The drive wheel also includes an upper wheel and a lower wheel, which are respectively sleeved on both ends of the drive shaft to assist the drive wheel in driving; the outer wall of the driven wheel is provided with an external thread, which is encircled on the driven wheel.
4. The shoe last fixing fixture according to claim 3, characterized in that: The movable mechanism includes a movable rod, a movable block, and a clamping block; the movable rod is movably inserted into the driven wheel, the movable block is disposed on both sides of the movable rod, and the clamping block is disposed on the movable block; the movable block moves up and down along the movable rod to drive the clamping block to perform opening and closing clamping activities.
5. The shoe last fixing fixture according to claim 4, characterized in that: The outer ring of the movable rod is provided with an internal thread, which engages with the external thread so that the drive mechanism can drive the movable mechanism to move.
6. The shoe last fixing fixture according to claim 5, characterized in that: When the movable rod moves up or down, the movable rod drives the clamping block through the movable block to relatively press or open the two sides of the shoe last, so that the clamping block fixes the two sides of the shoe last.
7. The shoe last fixing fixture according to claim 1, characterized in that: The moving mechanism is provided with a fixing component on the side near the locking mechanism. The fixing component is used to fix the shoe toe. The fixing component includes a fixing base, a fixing rod, and a fixing head. The fixing base is set on the driving mechanism, the fixing rod is set on the fixing base, and the fixing head is set on the fixing rod.
8. The shoe last fixing fixture according to claim 1, characterized in that: The locking mechanism includes a pull rod, a shrinking element, and shrinking blocks. The pull rod is mounted on a movable rod, the shrinking element is mounted on the pull rod, and the shrinking blocks are mounted on both sides of the shrinking element. The pull rod moves through the movable rod to push the shrinking element to expand and contract with the mounting holes in the shoe last, and is fixed by the shrinking blocks.
9. The shoe last fixing fixture according to claim 8, characterized in that: The bottom of the expansion and contraction block is provided with a pusher block, and there are two sets of pushers. The two sets of pushers are arranged opposite each other and are used to assist the expansion and contraction block in its expansion and contraction activities.
10. The shoe last fixing fixture according to claim 9, characterized in that: When the movable rod moves up or down, the pull rod drives the expansion and contraction element to rise or fall, so that the expansion and contraction block can be relatively compressed or opened by the push block. The expansion and contraction element can adapt to the mounting holes on the shoe last, so that the locking mechanism locks the end of the shoe last.