A shoe vamp forming mechanism

Abstract

This invention discloses a shoe upper forming mechanism, relating to the field of shoe manufacturing equipment technology. It includes a lifting platform and a gluing platform distributed outside the lifting platform. A ring of clamping components is distributed outside the gluing platform. A positioning mechanism for pre-installing the shoe upper is provided on the top of each clamping component. The positioning mechanism includes a frame distributed above the clamping components. An inner mold is fixedly installed in the middle of the frame. The inner mold engages and is fixed to the outer edge of the shoe upper to be processed, causing the shoe upper to suspend above the clamping components. A cover template is slidably connected to the top of the frame via several sliding rods. The cover template is distributed above the shoe upper to be processed and makes compression contact with the top of the shoe upper. This shoe upper forming mechanism disclosed in this invention has the effects of self-positioning and smoothing shoe upper wrinkles, significantly improving operational convenience.

Description

Technical Field

[0001] This invention relates to the field of shoe manufacturing equipment technology, and in particular to a shoe upper forming mechanism. Background Technology

[0002] In shoe manufacturing, the clamping and positioning of the upper and the forefoot is a key process that affects the bonding quality between the upper and the sole. In traditional forefoot machine operation, workers need to place the shoe last with the upper attached on the support table, and then insert the leather layer at the bottom of the upper into the clamping claws distributed around the machine one by one to fix it. During this process, the edges of the leather must be precisely aligned with the clamping claws, and the upper must be kept upright on the last. Otherwise, the upper will be crooked and wrinkled after clamping, which will affect the subsequent pressing quality.

[0003] In existing technologies, during actual operation, manual operation relies heavily on experience to feed the leather into the grippers. Manual operation is not only inefficient, but the positioning accuracy is also greatly affected by the worker's skill level. When the leather is inserted, it often accumulates or wrinkles near the gripping point because it is not straightened. Therefore, there is a technological gap in the initial positioning and leather pre-processing stages of the upper in existing vamp machines. There is an urgent need for an auxiliary mechanism that can automatically complete the upper posture correction and leather smoothing before gripping. Summary of the Invention

[0004] This invention discloses a shoe upper forming mechanism, which aims to solve the technical problems of shoe upper positioning relying on manual labor and leather wrinkling in traditional upper forming machine operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A shoe upper forming mechanism includes a lifting platform and a glue application platform distributed outside the lifting platform. The lifting platform is supported on the bottom of the shoe upper to be processed. The glue application platform is attached to the outer edge of the shoe upper. A ring of clamping components is distributed outside the glue application platform, and the clamping components clamp and fix the outer edge of the shoe upper to be processed. The top of the clamping components is provided with a positioning mechanism for pre-installing the shoe upper. The positioning mechanism includes a frame distributed above the clamping components. An inner mold is fixedly installed in the middle of the frame. The inner mold is engaged and fixed to the outer edge of the shoe upper to be processed, causing the shoe upper to be suspended above the top of several clamping components. A cover template is slidably connected to the top of the frame through several sliding rods. The cover template is distributed above the shoe upper to be processed and makes extrusion contact with the top of the shoe upper.

[0006] By incorporating a positioning mechanism along the top of the clamping assembly into the traditional shoe upper machine, and using an inner mold frame that matches the shoe last's contour, workers no longer need to precisely align the shoe upper with the clamping assembly when placing it. They simply need to roughly place the shoe upper into the frame, and the inner wall of the mold automatically completes the circumferential positioning and posture correction of the shoe upper. This significantly reduces the skill requirements for workers. Furthermore, the relative movement between the mold edge and the leather layer during the shoe insertion process pushes outward and straightens the originally wrinkled or rolled-up leather layer of the shoe upper, eliminating the wrinkles at the clamping point caused by leather layer accumulation in traditional processes. This improves the smoothness of the subsequent bonding between the upper and the sole. As the positioning mechanism brings the shoe upper closer to the clamping assembly, the further opening and closing of the clamping assembly can cause the additional cover template pressed on the top of the shoe upper to move downward, thereby pushing and smoothing the positioned shoe upper. This ensures that the edge of the shoe upper is precisely inserted into the interior of the clamping assembly, assisting the clamping assembly in clamping the shoe upper, thus greatly improving the positioning capability of this equipment in replacing manual labor.

[0007] In a preferred embodiment, the clamping assembly includes cylinders distributed on the outside of the glue application table. Each cylinder has a lower clamping jaw fixedly mounted on its top side. An upper clamping jaw is rotatably mounted on the top of the lower clamping jaw. The upper clamping jaw is rotatably connected to the output end of the cylinder. Several clamping assemblies are evenly distributed along the shape that conforms to the outer edge of the shoe upper.

[0008] The upper gripper, driven by a cylinder, works in conjunction with the lower gripper to clamp the shoe upper. The upper gripper can operate in two modes: clamping and outward expansion, driven by the cylinder. When expanding outward, it works in conjunction with the movement of the positioning mechanism to drive the cover template, thus maintaining the integrity of the equipment's operation.

[0009] In a preferred embodiment, a vertical clamping edge is provided above the center of the inner mold to clamp the outer side of the shoe upper, and an inclined clamping edge is provided below the center of the inner mold. The vertical clamping edge and the inclined clamping edge are connected to guide the shoe upper during installation.

[0010] By further incorporating interconnected vertical and inclined clamping edges on the inner mold, the shoe upper is clamped. During shoe upper installation, the inclined clamping edges increase the installation diameter of the inner mold, assisting workers in installing the shoe upper. Simultaneously, the vertical clamping edges create relative movement with the shoe upper leather, pushing outwards and straightening any wrinkles or curls in the leather. When the shoe upper is moved downwards, the inclined clamping edges again utilize relative movement with the shoe upper leather to push it outwards and guide it to the clamping components, thereby significantly improving the functionality of the equipment.

[0011] In a preferred embodiment, the bottoms of several of the slide bars are jointly fixedly connected to a pair of locking strips, and the moving locking strips and the ends of the lower grippers are pressed and engaged.

[0012] By setting a locking strip structure at the bottom of the slide bar, the vertically moving clamping mechanism can drive the locking strip and the upper jaw to form a quick connection. In conjunction with the cylinder driving the upper jaw to open and close and rotate, the locking strip can drive the cover template to move, thereby maintaining the integrity of the equipment operation.

[0013] In a preferred embodiment, a cover mold is fixedly installed below the center of the cover template. The cover mold is adapted to fit the shape of the shoe upper and presses against the top of the shoe upper to be processed.

[0014] By further setting a cover mold structure along the inside of the cover mold on the basis of the cover template, the cover mold is used to match the shape of the top of the shoe upper and to fit and squeeze the shoe upper. When the worker installs the shoe upper, the cover mold can help the worker control the installation depth of the shoe upper, thereby improving the perfection and convenience of the equipment operation.

[0015] As can be seen from the above, the shoe front forming mechanism provided by the present invention has the following technical effects.

[0016] Firstly, by adding an inner mold frame that matches the shoe last contour to the traditional shoe upper machine, workers do not need to deliberately align the upper and lower clamps when placing the upper. They only need to insert the upper upwards into the frame, and the inner wall of the mold will automatically complete the circumferential positioning and smoothing of wrinkles of the upper and the leather layer. This greatly reduces the difficulty of assembly calibration. In addition, the relative movement between the edge of the mold and the leather layer during the process of workers inserting the shoe pushes the originally wrinkled or rolled-up leather layer of the upper outwards and straightens it, eliminating the clamping point wrinkles caused by the accumulation of leather layer in the traditional process, and improving the flatness of the subsequent bonding of the upper and the sole.

[0017] Secondly, as the positioning mechanism brings the shoe upper closer to the clamping component, the further opening and closing of the upper jaws can cause the additional cover template pressed on the top of the shoe upper to move downward, thereby pushing and smoothing the positioned shoe upper. This causes the lower edge of the shoe upper leather to be precisely inserted into the interior of the clamping component, assisting the clamping component in clamping the shoe upper leather, thus greatly improving the positioning capability of this device to replace manual labor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0019] Figure 2 This is a schematic diagram of the shoe upper structure after installation according to the present invention.

[0020] Figure 3This is a top view of the device structure proposed in this invention.

[0021] Figure 4 This is a schematic diagram of the clamping component structure proposed in this invention.

[0022] Figure 5 This is an exploded view of the overall structure proposed in this invention.

[0023] Figure 6 This is a schematic diagram of the positioning mechanism proposed in this invention.

[0024] Figure 7 This is a schematic diagram of the internal structure of the positioning mechanism proposed in this invention.

[0025] Figure 8 This is a schematic diagram of the equipment operation process proposed in this invention.

[0026] Figure 9 The present invention proposes Figure 8 Enlarged diagram of point A in the middle.

[0027] In the diagram: 1. Lifting platform; 2. Glue application platform; 3. Clamping assembly; 301. Cylinder; 302. Lower gripper; 3021. Grip teeth; 303. Upper gripper; 4. Positioning mechanism; 401. Frame; 402. Lifting platform; 403. Inner mold; 4031. Vertical clamping edge; 4032. Inclined clamping edge; 404. Slide rod; 405. Cover template; 4051. Cover mold; 406. Side plate; 407. Spring; 408. Clamping strip. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] The shoe vamp forming mechanism disclosed in this invention is mainly used in the process of shoe manufacturing, in the scenario of shaping and binding the shoe vamp.

[0030] Reference Figures 1 to 9 A shoe upper forming mechanism includes a lifting platform 1 and an adhesive application platform 2 distributed on the outside of the lifting platform 1. The lifting platform 1 is supported on the bottom of the shoe upper to be processed. The adhesive application platform 2 is attached to the outer edge of the shoe upper. A ring of clamping components 3 is distributed on the outside of the adhesive application platform 2. The clamping components 3 clamp and fix the outer edge of the shoe upper to be processed. A positioning mechanism 4 for pre-installing the shoe upper is provided on the top of the clamping components 3. The positioning mechanism 4 includes a frame 401 distributed above the clamping components 3. An inner mold 403 is fixedly installed in the middle of the frame 401. The inner mold 403 is engaged and fixed to the outer edge of the shoe upper to be processed, so that the shoe upper is suspended above the top of several clamping components 3. A cover template 405 is slidably connected to the top of the frame 401 through several sliding rods 404. The cover template 405 is distributed above the shoe upper to be processed and makes extrusion contact with the top of the shoe upper.

[0031] In this embodiment: The worker holds the shoe upper to be processed and presses it vertically upward along the middle of the inner mold 403. Simultaneously, the inner mold 403 moves relative to the shoe upper leather, pushing outwards and straightening the originally wrinkled or rolled-up leather until the top of the shoe upper contacts the cover template 405. At this point, the worker starts the entire device. First, the frame 401 moves the shoe upper vertically downwards. Simultaneously, the clamping component 3 engages with the sliding rod 404. The clamping component 3 opens outwards, pulling the sliding rod 404 downwards. 04 will cause the cover template 405 to move synchronously. The moving cover template 405 will squeeze the top of the shoe upper, pushing the shoe upper downward along the inner side of the inner mold 403 until the edge of the shoe upper leather is inserted into the clamping component 3. At this time, the clamping component 3 will close inward, clamping and fixing the edge of the shoe upper leather. At the same time, the positioning mechanism 4 will move upward to reset, and the lifting platform 1 will start simultaneously. The lifting platform 1 will squeeze upward along the bottom of the shoe upper, cooperating with the clamping component 3 to clamp the shoe upper leather, stretching the leather and tightly adhering it to the outside of the shoe upper. At the same time, the glue application platform 2 will operate synchronously (the glue application platform 2 and the lifting platform 1 only operate in...). Figure 2 (As shown in the figure, but not shown in the other figures), glue is applied to the bottom of the shoe upper. Then, the clamping component 3 releases the clamp on the shoe upper leather layer. At the same time, the external cutter cuts into the gap between the shoe upper and the lifting platform 1, and squeezes and guides the stretched leather layer inward, so that the leather layer covers the outside of the glue coating on the bottom of the shoe upper, thus completing the processing of the shoe upper.

[0032] The top of the frame 401 is fixedly connected to an external lifting platform 402. The lifting platform 402 drives the entire frame 401 to be vertically lifted. Side plates 406 are symmetrically installed on both sides of the top of the frame 401. A sliding rod 404 passes through the inside of the side plate 406. At the same time, the cover plate 405 is mounted on the top of the two side plates 406.

[0033] Furthermore, a spring 407 is fixedly sleeved on the outer side of the slide rod 404. The spring 407 and the side plate 406 are in compression contact. After the slide rod 404 loses its connection with the clamping assembly 3, the slide rod 404 will be pushed by the compression spring 407, which will then drive the cover template 405 to reset and move.

[0034] Reference Figures 1 to 4 , Figure 8 In a preferred embodiment, the clamping assembly 3 includes cylinders 301 distributed on the outside of the glue application table 2. Each cylinder 301 has a lower clamping claw 302 fixedly installed on its top side. An upper clamping claw 303 is rotatably installed on the top of the lower clamping claw 302. The upper clamping claw 303 is rotatably connected to the output end of the cylinder 301. Several clamping assemblies 3 are evenly distributed along the shape that fits the outer edge of the shoe upper.

[0035] When the worker starts the entire equipment, the frame 401 first causes the shoe upper to move vertically downward. At the same time, the end of the upper clamp 303 will be connected with the slide bar 404. At this time, the cylinder 301 drives the upper clamp 303 to open outward. While opening, the slide bar 404 is pulled downward and moves vertically. The moving slide bar 404 will drive the cover plate 405 to move synchronously. The moving cover plate 405 will squeeze the top of the shoe upper, pushing the shoe upper downward along the inner side of the inner mold 403 until the edge of the shoe upper leather is stuck in the interior of the lower clamp 302. At this time, the cylinder 301 drives the upper clamp 303 to rotate inward and close, clamping and fixing the edge of the shoe upper leather. At the same time, the positioning mechanism 4 moves upward to reset, and the lifting platform 1 starts synchronously. The lifting platform 1 presses upward along the bottom of the shoe upper, and with the clamping component 3 clamping the shoe upper leather, the leather is stretched and tightly attached to the outside of the shoe upper.

[0036] Among them, the bottom of several sliding rods 404 are fixedly connected to a pair of locking strips 408. When the locking strips 408 move, they are pressed and engaged with the end of the upper jaw 303. The cylinder 301 drives the upper jaw 303 to open outward first. At the same time as the opening, the locking strips 408 pull the sliding rods 404 downward to move vertically.

[0037] Furthermore, each lower gripper 302 has a claw tooth 3021 on its upper surface to improve the fixing efficiency of the gripping component 3 on the upper leather layer.

[0038] Reference Figures 5 to 6 In a preferred embodiment, a vertical clamping edge 4031 is provided above the middle of the inner mold 403 to clamp the outer side of the shoe upper. An inclined clamping edge 4032 is provided below the middle of the inner mold 403. The vertical clamping edge 4031 and the inclined clamping edge 4032 are connected to each other and guide the shoe upper during installation through the inclined clamping edge 4032.

[0039] When the worker is installing the shoe upper, he holds the shoe upper to be processed and presses it vertically upward along the middle of the inner mold 403. At this time, the inclined clamping edge 4032 can increase the installation diameter of the inner mold 403, assisting the worker in installing the shoe upper. At the same time, the vertical clamping edge 4031 will generate relative movement with the shoe upper leather, pushing the originally wrinkled or rolled shoe upper leather outward and straightening it, so that the shoe upper leather and the shoe upper fit tightly together. It is worth noting that when the cover template 405 applies a downward pushing force to the upper and the upper leather, relative friction is generated between the upper, the upper leather, and the vertical clamping edge 4031 as the cover template 405 pushes the upper. This causes the lower edge of the upper leather in the middle to curl outward, so that the lower edge of the upper leather can be located between the lower clamping claw 302 and the upper clamping claw 303, improving the clamping accuracy. The inclined clamping edge 4032 can provide reserved space for the lower edge of the upper leather to curl up.

[0040] Among them, a cover mold 4051 is fixedly installed in the lower middle part of the cover template 405. The cover mold 4051 is adapted to fit the shape of the shoe upper and makes contact with the top of the shoe upper to be processed.

[0041] Working principle: During use, the worker holds the shoe upper to be processed and presses it vertically upwards along the middle of the inner mold 403. Simultaneously, the inner mold 403 moves relative to the shoe upper leather, pushing outwards and straightening any wrinkles or curls until it contacts the cover mold 4051. At this point, the worker starts the entire machine. First, the frame 401 moves the shoe upper vertically downwards. Simultaneously, the end of the upper gripper 303 engages with the locking strip 408 and connects with the sliding rod 404. Then, the cylinder 301 causes the upper gripper 303 to open outwards, pulling the sliding rod 404 downwards. The moving sliding rod 404 moves the cover mold 4051 synchronously, squeezing the top of the shoe upper and pushing it downwards along the inner side of the inner mold 403 until the lower edge of the shoe upper leather is engaged with the lower gripper 302. Specific changes are shown in the attached diagram. Figure 8 As shown; at this time, the cylinder 301 drives the upper clamp 303 to rotate inward and close, clamping and fixing the edge of the shoe upper leather layer. At the same time, the positioning mechanism 4 moves upward to reset, and the lifting platform 1 starts synchronously. The lifting platform 1 presses upward along the bottom of the shoe upper, and with the clamping component 3 clamping the shoe upper leather layer, stretches the leather layer and tightly adheres it to the outside of the shoe upper. At the same time, the glue application platform 2 runs synchronously to apply glue to the bottom of the shoe upper. After that, the clamping component 3 releases the clamp on the shoe upper leather layer, and at the same time, the external cutter cuts into the gap between the shoe upper and the lifting platform 1, and squeezes and guides the stretched leather layer inward, so that the leather layer covers the outside of the glue coating on the bottom of the shoe upper, completing the processing of the shoe upper.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A shoe upper forming mechanism, comprising a lifting platform (1) and a glue-applying platform (2) distributed outside the lifting platform (1), wherein the lifting platform (1) is supported on the bottom of the shoe upper to be processed, and the glue-applying platform (2) is fitted to the outer edge of the shoe upper, characterized in that, A ring of clamping components (3) is distributed on the outer side of the glue application table (2), and the clamping components (3) clamp and fix the outer edge of the shoe upper to be processed; the top of the clamping components (3) is provided with a positioning mechanism (4) for pre-installing the shoe upper. The positioning mechanism (4) includes a frame (401) distributed above the clamping components (3). An inner mold (403) is fixedly installed in the middle of the frame (401). The inner mold (403) is engaged and fixed to the outer edge of the shoe upper to be processed, so that the shoe upper is suspended above the top of several clamping components (3). A cover template (405) is slidably connected to the top of the frame (401) through several slide rods (404). The cover template (405) is distributed above the shoe upper to be processed and makes extrusion contact with the top of the shoe upper. The clamping assembly (3) includes cylinders (301) distributed on the outside of the glue application table (2). Each cylinder (301) has a lower clamping jaw (302) fixedly installed on its top side. An upper clamping jaw (303) is rotatably installed on the top of the lower clamping jaw (302). The upper clamping jaw (303) is rotatably connected to the output end of the cylinder (301). Several clamping assemblies (3) are evenly distributed along the shape that fits the outer edge of the shoe upper.

2. The shoe forefoot forming mechanism according to claim 1, characterized in that, Each of the lower jaws (302) has teeth (3021) on its upper surface.

3. The shoe forefoot forming mechanism according to claim 1, characterized in that, The top of the frame (401) is fixedly connected to an external lifting platform (402), and the lifting platform (402) drives the entire frame (401) to be vertically lifted.

4. The shoe forefoot forming mechanism according to claim 1, characterized in that, A vertical clamping edge (4031) is provided above the middle part of the inner mold (403), which clamps the outer side of the shoe upper.

5. The shoe forefoot forming mechanism according to claim 4, characterized in that, An inclined retaining edge (4032) is provided at the lower center of the inner mold (403). The vertical retaining edge (4031) and the inclined retaining edge (4032) are connected to each other, and the inclined retaining edge (4032) guides the shoe upper during installation.

6. The shoe forefoot forming mechanism according to claim 1, characterized in that, Side plates (406) are symmetrically installed on both sides of the top of the frame (401), and the slide rod (404) extends through the inside of the side plate (406). Meanwhile, the cover plate (405) is mounted on the top of the two side plates (406).

7. A shoe upper forming mechanism according to claim 6, characterized in that, A spring (407) is fixedly sleeved on the outer side of the slide bar (404), and the spring (407) and the side plate (406) are in compression contact.

8. The shoe forefoot forming mechanism according to claim 2, characterized in that, The bottoms of several of the slide bars (404) are fixedly connected to a pair of locking strips (408), and the moving locking strips (408) and the ends of the upper jaws (303) are pressed and engaged.

9. A shoe forefoot forming mechanism according to claim 1, characterized in that, A cover mold (4051) is fixedly installed below the middle part of the cover template (405). The cover mold (4051) is adapted to fit the shape of the shoe upper and is pressed into contact with the top of the shoe upper to be processed.

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