Automatic turning device for insole of sports shoes, automatic forming device and forming method thereof

By designing an automatic flipping device for sports shoe linings, the automatic flipping and gluing of the linings were achieved, solving the problem of low efficiency in manual operation, improving the degree of automation and reducing production costs.

CN115813089BActive Publication Date: 2026-02-17NINGBO ZHENHAI PUERBEI SEWING MASCH EQUIP CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202211611203.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-13
Publication Date
2026-02-17
Estimated Expiration
2042-12-13

AI Technical Summary

Technical Problem

In existing technologies, the flipping and gluing processes for athletic shoe linings rely on manual operation, which is inefficient, resulting in low automation and high production costs.

Method used

An automatic flipping device for sports shoe linings was designed, including a fixed frame, a shoe upper moving device, a shoe rack lifting device, a shoe upper mold frame, a shoe upper clamping device, a lining clamping device, a glue spraying device, a bonding lifting device, and a lining flipping device, etc., to realize the automatic flipping and glue application of the lining. Combined with a heat setting device and a material transfer device, it forms an automated production process.

Benefits of technology

It enables automated flipping and gluing of the lining, improving production efficiency, reducing production costs, and enhancing the level of automation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115813089B_ABST
    Figure CN115813089B_ABST
Patent Text Reader

Abstract

The application relates to a shoe making device, in particular to an automatic turning-over device for the insole of sports shoes, which comprises a fixing frame, a fixing bottom plate arranged on the fixing frame, a shoe upper moving device arranged on the fixing frame, a shoe rack lifting device arranged on the shoe upper moving device, a shoe upper mold rack arranged on the shoe rack lifting device, a shoe upper clamping device arranged on the shoe upper mold rack, an insole clamping device arranged on the shoe upper mold rack, a glue spraying device arranged on the shoe upper moving device, a fitting lifting device arranged on the shoe upper moving device, a shoe upper fitting device arranged on the fitting lifting device, an insole turning-over device fixed on the fixing bottom plate and located above the shoe upper mold rack, an insole chuck arranged on the insole turning-over device and used for clamping the insole, and an insole moving device arranged on the fixing bottom plate and connected with the insole turning-over device and used for moving the insole turning-over device. The device can automatically turn over the insole to the inner side of the shoe upper and automatically apply glue, and the production cost is low.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to a shoe making device, in particular to an automatic turning-over device for a lining of a sports shoe, an automatic forming device and a forming method thereof. BACKGROUND

[0002] The upper of a sports shoe comprises a vamp and a lining, and the vamp and the lining of the sports shoe are sewn together along a shoe opening, and the lining is wrapped outside the vamp during sewing, and after sewing, the lining is turned over to the inside of the vamp to form a shoe opening, and the sewing position is on the inside, which does not affect the appearance. Therefore, the vamp with the sewn lining needs to be turned over to the inside of the vamp, and the lining is bonded together by glue. The lining bonding needs to be glued on the inside of the vamp, and then the lining is turned over to the inside of the vamp, and the lining is pressed tightly on the inside of the vamp to fix the lining.

[0003] At present, the turning-over of the lining is all done by hand, and the manual turning-over and gluing are low in efficiency, require more workers, reduce the degree of automation, and result in high cost. SUMMARY

[0004] To solve the above problems, the present application provides an automatic turning-over device for a lining of a sports shoe, which can automatically turn over the lining to the inside of the vamp, automatically glue, realize the lining being attached to the inside of the vamp, has high degree of automation, is convenient to use, and is low in production cost, and the specific technical scheme is as follows.

[0005] The automatic turning-over device for a lining of a sports shoe comprises a fixing frame, a vamp moving device, a shoe rack lifting device, a vamp mold rack, a vamp clamping device, a lining clamping device, a glue spraying device, a lining turning-over device, a lining chuck, and a lining moving device. The vamp moving device is installed on the fixing frame, the shoe rack lifting device is installed on the vamp moving device, the vamp mold rack is installed on the shoe rack lifting device and used for placing an upper, the vamp clamping device is installed on the vamp mold rack and used for clamping the vamp, the lining clamping device is installed on the vamp mold rack and used for clamping the lining, the glue spraying device is installed on the vamp moving device and used for gluing the vamp and the lining, the lining turning-over device is fixed on the fixing frame and located above the vamp mold rack and used for turning over the lining, the lining chuck is installed on the lining turning-over device and used for clamping the lining, and the lining moving device is installed on the fixing frame and connected with the lining turning-over device and used for moving the lining turning-over device.

[0006] Further, the vamp mold frame comprises a mold frame plate installed on the shoe rack lifting device, and a plurality of separation plates symmetrically arranged along the outer side of the mold frame plate, wherein the separation plates are provided with separation protrusions.

[0007] Further, a plurality of vamp clamping devices are arranged along the vamp mold frame, wherein each vamp clamping device comprises a first pressing seat fixed on the vamp mold frame, a first pressing plate rotatably installed on the first pressing seat and located inside the vamp mold frame, a first pressing rod rotatably connected to the bottom of the first pressing plate, and a first pressing cylinder fixed on the first pressing seat and connected to the first pressing rod; a plurality of lining clamping devices are arranged along the vamp mold frame, wherein each lining clamping device comprises a second pressing seat fixed on the vamp mold frame, a second pressing plate rotatably installed on the second pressing seat and located inside the vamp mold frame, a second pressing rod rotatably connected to the bottom of the second pressing plate, and a second pressing cylinder fixed on the second pressing seat or the shoe rack base and connected to the second pressing rod.

[0008] Further, the glue spraying device comprises a glue spraying head, a glue spraying rod, and a glue spraying linear module, wherein the glue spraying head comprises a glue spraying seat provided with a glue spraying surface, glue outlet holes, and air outlet holes, the glue spraying surface corresponds to a surface to be glued, the glue spraying surface is provided with not less than one air outlet hole, the glue outlet holes are arranged on one side of the glue spraying surface and are not less than one, the glue outlet holes are arranged opposite to the air outlet holes, and the air outlet holes are used for atomizing and blowing glue mist onto the surface to be glued when the glue outlet holes are used for glue outlet; the top of the glue spraying rod is provided with the glue spraying head; the glue spraying linear module is fixed on the shoe upper moving device, and the glue spraying rod is fixed on the sliding table of the glue spraying linear module.

[0009] Further, the shoe upper fitting device comprises a clamping bottom plate fixed on the fitting lifting device, a rear floating clamping device installed on one end of the clamping bottom plate, and a front floating clamping device installed on the other end of the clamping bottom plate, wherein the front floating clamping device and the rear floating clamping device are used for pressing the shoe upper on the vamp mold frame.

[0010] Further, the lining turning device comprises a turning lifting plate, the bottom of which is rotationally connected with the lining chuck; a turning frame, one end of which is rotationally connected with the tail of the lining chuck; a lower turning fixing device, which is fixed on the turning frame and is used to control whether the lining chuck turns or not; a turning bottom plate, which is fixed on the fixing frame, and the turning lifting plate is slidingly installed on the turning bottom plate; an upper turning fixing device, which is installed on the turning bottom plate and is used to fix the position of the turning lifting plate when the lining chuck turns, so as to limit the turning position; and a turning cylinder, one end of which is rotationally installed on the turning bottom plate and the other end is rotationally installed on the turning frame.

[0011] Further, the lining chuck comprises a fixed chuck, which is rotationally installed on the lining turning device, and the fixed chuck is provided with a pneumatic cavity, an air inlet hole and a spring hole, and the pneumatic cavity is communicated with the air inlet hole; a chuck piston, which is slidingly inserted into the pneumatic cavity; a first rotation shaft, which is rotationally installed on the fixed chuck; a second rotation shaft, which is rotationally installed on the tail of the fixed chuck; a movable chuck, which is rotationally installed on the first rotation shaft and is oppositely arranged with the fixed chuck, and the chuck piston is used to drive the movable chuck to press on the fixed chuck; and a spreading spring, which is movably inserted into the spring hole and is located between the movable chuck and the fixed chuck, and the spreading spring is used to drive the movable chuck to open.

[0012] Further, the lining moving device comprises a turning fixing frame, which is installed on the fixed bottom plate; a transverse moving device, which is slidingly installed on the turning fixing frame, and the lining turning device is installed on the transverse moving device; and a longitudinal moving device, which is slidingly installed on the turning fixing frame, and the lining turning device is installed on the longitudinal moving device, and the transverse moving device is symmetrically located on both sides of the longitudinal moving device; the upper moving device comprises a feeding base, which is installed on the fixing frame; a feeding bottom plate, which is slidingly installed on the feeding base; and a feeding cylinder, which is fixed on the feeding base and is connected with the feeding bottom plate.

[0013] The automatic forming device of the insole of sports shoes comprises: the automatic turning device of the insole of sports shoes; a heat setting device fixed on the fixed bottom plate and located on one side of the automatic turning device of the insole of sports shoes, used for heating and drying glue of the upper and setting the upper; and a material moving device installed on the fixed frame and located above the upper mold frame and the heat setting device, used for moving the turned upper to the heat setting device and moving the heat set upper out of the heat setting device.

[0014] The forming method of the insole of sports shoes comprises the following steps:

[0015] S1, the upper mold frame is in the position of loading the upper, the upper mold frame is extended, the upper is inserted into the upper mold frame, the upper is separated from the insole, and the upper clamping device clamps the upper on the upper mold frame; S2, the upper moving device moves the upper mold frame below the insole turning device and above the insole clamp; S3, the upper mold frame is retracted, the insole is inserted into the insole clamp, and the insole clamp clamps the edge of the insole; S4, the insole turning device lifts the insole clamp to the insole turning position and turns the insole clamp, so that the insole clamp changes from upward to downward; S5, the insole moving device drives the insole turning device to move above the mouth of the upper; S6, the insole turning device continues to drive the insole clamp to rise to the insole straightening position; S7, the glue spraying device sprays glue on the insole and / or the inner side of the upper; S8, the upper fitting device rises to the insole turning position and presses the upper on the upper mold frame, and the upper fitting device fixes the joint of the upper and the insole; S9, the insole turning device continues to drive the insole clamp to descend to the inside of the mouth, completes the turning of the insole, and covers the insole to the inner side of the upper; S10, the insole clamping device clamps the insole on the inner side of the upper; S11, the insole turning device drives the insole clamp to rise above the mouth, and the upper fitting device descends and separates from the upper; S12, the insole moving device drives the insole turning device to move to the outside above the mouth; S13, the insole turning device drives the insole clamp to turn, so that the insole clamp turns from downward to upward; S14, the insole turning device drives the insole clamp to descend to the initial position, the upper moving device moves the upper mold frame to the position of loading the upper, and the upper mold frame is extended.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] The automatic turning device of the insole of sports shoes can automatically turn the insole to the inner side of the upper, automatically apply glue, realize the insole covering the inner side of the upper, has high automation degree, is convenient to use, and has low production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a front view of the automatic turning device of the insole of sports shoes;

[0019] Figure 2 is a structural schematic diagram of the automatic forming device of sports shoes;

[0020] Figure 3 is a schematic diagram of the assembly structure of the vamp mold frame, vamp clamping device and insole clamping device;

[0021] Figure 4 is a top view of Figure 3 ;

[0022] Figure 5 is a sectional view along the line C-C in Figure 4 ;

[0023] Figure 6 is a structural schematic diagram of the vamp fitting device;

[0024] Figure 7 is a side view of the vamp fitting device;

[0025] Figure 8 is a top view of the vamp fitting device;

[0026] Figure 9 is a schematic diagram of the assembly structure of the front clamping lever and the front clamping plate;

[0027] Figure 10 is a schematic diagram of the assembly structure of the rear clamping lever and the rear clamping plate;

[0028] Figure 11 is a structural schematic diagram of the glue spraying device;

[0029] Figure 12 is a structural schematic diagram of the glue spraying head;

[0030] Figure 13 is an exploded structural schematic diagram of the glue spraying head;

[0031] Figure 14 is a top view of the glue spraying head;

[0032] Figure 15 is a sectional view along the line A-A in Figure 14 ;

[0033] Figure 16 is a sectional view along the line B-B in Figure 15 ;

[0034] Figure 17 is a structural schematic diagram of the vamp moving device;

[0035] Figure 18 is a front view of the upper moving device;

[0036] Figure 19 is a structural schematic view of the lining clamp;

[0037] Figure 20 is a sectional view of the lining clamp;

[0038] Figure 21 is a structural schematic view of the assembly of the lower turning fixing device, the turning frame and the lining clamp;

[0039] Figure 22 is a structural schematic view of the lining turning device;

[0040] Figure 23 is a front view of the lining turning device;

[0041] Figure 24 is a sectional view along the line D-D in Figure 23

[0042] Figure 25 is a structural schematic view of the lower positioning block;

[0043] Figure 26 is a schematic view of the action of the turning device;

[0044] Figure 27 is a structural schematic view of the turning detection device when the lining clamp is from the initial state to the turning state;

[0045] Figure 28 is a structural schematic view of the assembly of the lining turning device, the lining clamp and the lining moving device;

[0046] Figure 29 is a side view of Figure 28 ;

[0047] Figure 30 is a structural schematic view of the material moving device;

[0048] Figure 31 is a sectional structural schematic view of the lining and the upper being stretched, and the lining is not turned over; DETAILED DESCRIPTION

[0049] The present application will be further described in conjunction with the accompanying drawings.

[0050] Example 1:

[0051] As Figures 1 to 30 ​As shown, the automatic turning device of the insole of the sports shoes comprises a fixing frame 91, a fixing bottom plate 92 is arranged on the fixing frame 91; a vamp moving device is arranged on the fixing frame 91; a shoe rack lifting device is arranged on the vamp moving device; a vamp mold rack is arranged on the shoe rack lifting device, and the vamp mold rack is used for placing the upper; a vamp clamping device is arranged on the vamp mold rack and used for clamping the vamp; an insole clamping device is arranged on the vamp mold rack and used for clamping the insole; a glue spraying device is arranged on the vamp moving device and used for gluing the vamp and the insole; a fitting lifting device is arranged on the vamp moving device; a vamp fitting device is arranged on the fitting lifting device, used for fitting the vamp on the vamp mold rack and supporting the vamp; an insole turning device is fixed on the fixing bottom plate 92 and located above the vamp mold rack, used for turning the insole; an insole chuck is arranged on the insole turning device and used for clamping the insole; and an insole moving device is arranged on the fixing bottom plate 92 and connected with the insole turning device, used for moving the insole turning device.

[0052] The vamp moving device comprises a feeding base 81, the feeding base 81 is arranged on the fixing frame 91; a feeding bottom plate 82 is slidingly arranged on the feeding base 81; and a feeding cylinder 83 is fixed on the feeding base 81 and connected with the feeding bottom plate 82.

[0053] The feeding bottom plate 82 is slidingly arranged on the feeding base 81 through a linear guide pair. The feeding cylinder 83 can be one of a pneumatic cylinder, a hydraulic cylinder or an electric cylinder. The feeding bottom plate 82 is switched between the vamp loading station and the insole turning station, facilitating the loading and unloading of the vamp.

[0054] The vamp mold rack comprises a mold rack plate 21 and a plurality of separation plates 211 symmetrically arranged along the outer side of the mold rack plate 21, and the separation plates 211 are provided with separation protrusions 2111.

[0055] Specifically, the mold rack plate 21 is U-shaped or approximately U-shaped formed by three plates. The mold rack plate 21 is arranged on a shoe rack base 29.

[0056] The shoe rack lifting device comprises a shoe rack lifting cylinder 84, the shoe rack lifting cylinder 84 is fixed on the feeding bottom plate 82, a piston rod of the shoe rack lifting cylinder 84 is fixed on the bottom of the shoe rack base 29, and the shoe rack lifting cylinder 84 is symmetrically arranged on both sides of the shoe rack base 29. The shoe rack lifting cylinder 84 can be a double-shaft or triple-shaft cylinder, so that the vamp mold rack is stably lifted. The shoe rack base 29 can be lifted, so that the insole can be automatically inserted into the insole turning device for clamping and turning.

[0057] The U-shaped mold frame plate 21 matches the shape of the vamp, facilitating the fixing of the vamp. The separation plate 211 can separate the insole from the vamp, forming a gap, facilitating the clamping of the insole during subsequent turning over. The separation protrusion 2111 protrudes outward from the mold frame plate 21, which can increase the gap between the insole and the vamp, facilitating the clamping of the insole by the chuck.

[0058] In at least one embodiment, the end of the mold frame plate 21 is provided with a circular arc corner 213. The circular arc corner 213 can prevent scratching the vamp or insole. And can reduce the height of the end of the mold frame plate 21, facilitating the insertion of the vamp.

[0059] The mold frame plate 21 is made of iron plate or stainless steel plate and is bent, and matches the shape of the shoe, forming a U shape, facilitating insertion between the vamp and the insole.

[0060] The separation plate 211 is bent once to form a V-shaped protrusion, which can effectively separate the insole from the vamp, facilitating subsequent grasping and turning over of the insole. The three outer sides of the mold frame plate 21 are each provided with two separation plates 211.

[0061] As shown in Figures 2 to 5 The vamp clamping device is symmetrically provided with a plurality of vamp clamping devices along the vamp mold frame. The vamp clamping device comprises: a first pressing seat 25 fixed on the vamp mold frame; a first pressing plate 22 rotatably mounted on the first pressing seat 25 and located inside the vamp mold frame; a first pressing rod 23, one end of the first pressing rod 23 is rotatably connected with the bottom of the first pressing plate 22; and a first pressing cylinder 242 fixed on the first pressing seat 25 and connected with the first pressing rod 23.

[0062] Specifically, the first pressing seat 25 is fixed on the shoe rack base 29, and the mold frame plate 21 is fixed on the top of the first pressing seat 25.

[0063] After the vamp is inserted into the mold frame plate 21, the first pressing plate 22 can press the vamp inside the mold frame plate 21, so that the vamp does not move during subsequent turning over of the insole, making the turning over of the insole convenient.

[0064] In at least one embodiment, the vamp clamping device is provided with four vamp clamping devices, which are symmetrically arranged in pairs. Two of the vamp clamping devices are located on both sides of the mold frame plate 21, and the other two are symmetrically located on both sides of the end of the mold frame plate 21.

[0065] In at least one embodiment, the mold frame plate 21 is provided with a first connecting plate 215 fixed on the top of the first pressing seat 25.

[0066] The bottom of the first pressing plate 22 is provided with a first rotating hole 222 and a first limiting slot 223. The first rotating hole 222 is a circular hole, and the first limiting slot 223 is communicated with the first rotating hole 222, and the width of the first limiting slot 223 is smaller than the diameter of the first rotating hole 222. One end of the first pressing rod 23 is provided with a first ball head 231 with a diameter larger than that of the first pressing rod 23, the first ball head 231 is movably inserted into the first rotating hole 222, and the first pressing rod 23 is movably inserted into the first limiting slot 223. The first ball head 231 facilitates the rotation of the first pressing plate 22, so that the first pressing rod 23 moves along the axis reciprocatingly, and the rotating space is small.

[0067] The shoe rack base 29 is provided with a first through slot 291 which can be a U-shaped slot and is matched with the inner side surface of the mold frame plate 21, facilitating the installation of other devices. The first pressing seat 25 is located at the side of the first through slot 291.

[0068] The first pressing rod 23 is movably inserted into the through hole of the first pressing seat 25, and the first pressing rod 23 moves along the axis reciprocatingly. The first pressing rod 23 can only move along the axis reciprocatingly, facilitating the control of the opening and closing of the first pressing plate 22, especially the opening of the first pressing plate 22, preventing the vamp from being inserted into the outer side surface of the first pressing plate 22 when the vamp is inserted, and affecting the clamping of the vamp.

[0069] The first pressing plate 22 is rotatably installed on the first rotating shaft 241, and the first rotating shaft 241 is fixed on the first pressing seat 25. A bearing can also be installed between the first rotating shaft 241 and the first pressing plate 22.

[0070] In no less than one embodiment, the top of the first pressing plate 22 is provided with a first anti-skid pattern 221. The first anti-skid pattern 221 can ensure that the vamp is fixed on the mold frame plate 21 without sliding.

[0071] In no less than one embodiment, the first pressing seat 25 is provided with a first pressing slot 251, the first rotating shaft 241 is fixed on both sides of the first pressing slot 251, the first pressing plate 22 is movably located in the first pressing slot 251, and the first pressing rod 23 is movably inserted into the through hole at the bottom of the first pressing slot 251. The first pressing slot 251 facilitates the installation of the first pressing plate 22, so that the first pressing seat 25 does not protrude into the first through slot 291, and the structure is compact.

[0072] The lining clamping device is provided with a plurality of lining clamping devices along the vamp mold frame, and the lining clamping device comprises a second pressing seat 271 fixed on the vamp mold frame, a second pressing plate 26 rotatably installed on the second pressing seat 271 and located inside the vamp mold frame, a second pressing rod 28, one end of which is rotatably connected to the bottom of the second pressing plate 26, and a second pressing cylinder 272 fixed on the second pressing seat 271 and connected with the second pressing rod 28.

[0073] Specifically, the second pressing seat 271 is fixed on the shoe rack base 29, and the second pressing plate 26 is located inside the mold frame plate 21.

[0074] In at least one embodiment, the lining clamping device is provided with three, two of which are symmetrically arranged on both sides of the mold frame plate 21, and the other is arranged at the end of the mold frame plate 21 and located between the two vamp clamping devices.

[0075] The bottom of the second pressing plate 26 is provided with a second rotating hole 261 and a second limiting groove 262, the second rotating hole 261 is a circular hole, the second limiting groove 262 is communicated with the second rotating hole 261, and the width of the second limiting groove 262 is smaller than the diameter of the second rotating hole 261; one end of the second pressing rod 28 is provided with a second ball head 281 with a diameter larger than that of the second pressing rod 28, the second ball head 281 is movably inserted into the second rotating hole 261, and the second pressing rod 28 is movably inserted into the second limiting groove 262.

[0076] The lining fixing device can press the lining against the inner side of the vamp after the lining is turned over, so as to avoid separation of the lining from the vamp.

[0077] The top of the second pressing plate 26 is provided with a second anti-skid pattern 261. The second anti-skid pattern 261 can fix the lining on the inner side of the vamp to prevent the lining from falling off.

[0078] The structure of the second pressing plate 26 is similar to that of the first pressing plate 22. The second pressing plate 26 is rotatably installed on the second rotating shaft 272, and the second rotating shaft 272 is fixed on the second pressing seat 271. A bearing can also be installed between the second pressing rod 28 and the second pressing plate 26.

[0079] The inner side of the vamp is glued before the lining is turned over, then the lining is turned over to make the lining and the inner side of the vamp fit together, and then the position of the lining needs to be fixed to ensure that the relative position of the lining and the vamp does not change when the vamp and the lining are taken out as a whole. The second pressing plate 26 is located inside the first through groove 291.

[0080] In at least one embodiment, the second pressing rod 28 is movably inserted into the through hole on the shoe rack base 29 and reciprocates along the axis. The second pressing rod 28 can only reciprocate along the axis, facilitating the opening and closing of the second pressing plate 26, especially the opening of the second pressing plate 26, preventing the inner lining from being inserted into the outer side of the second pressing plate 26 after being turned over due to incomplete opening of the second pressing plate 26, and affecting the clamping of the inner lining. The second pressing rod 28 is movably inserted into the shoe rack base 29, making the structure more compact, occupying less space, and facilitating the installation of other devices.

[0081] As shown in Figures 11 to 16 The glue spraying device comprises: a glue spraying head, the glue spraying head comprising: a glue spraying seat, the glue spraying seat being provided with a glue spraying surface 11, glue outlet holes 13 and air injection holes 12, the glue spraying surface 11 corresponding to the surface to be glued, the glue spraying surface 11 being provided with at least one air injection hole 12, the glue outlet holes 13 being arranged on one side of the glue spraying surface 11 and being at least one, the glue outlet holes 13 being oppositely arranged with the air injection holes 12, the air injection holes 12 being used for atomizing and blowing the glue onto the surface to be glued when the glue outlet holes 13 are used for glue outlet; a glue spraying rod 191, the top of the glue spraying rod 191 being provided with the glue spraying head; and a glue spraying linear module 192, the glue spraying rod 191 being fixed on the sliding table of the glue spraying linear module 192.

[0082] The glue spraying linear module 192 drives the glue spraying head to ascend and descend, realizing the full glue spraying of the inner side of the upper and the inner lining.

[0083] The glue spraying head can be located in the first through groove 291 to ascend and descend for glue spraying. The glue spraying rod 191 facilitates the installation of the glue spraying head, solving the problem that the linear module is too large to be inserted into the shoe opening. The glue spraying surface 11 corresponding to the surface to be glued enables the glue to be directionally sprayed, ensuring that the glue can be sprayed onto the inner side of the upper. When the glue is extruded, the high-pressure gas sprayed from the air injection hole 12 atomizes, that is, the high-pressure gas blows the glue apart to form many small droplets and blows them onto the inner surface of the upper, realizing the spraying of the glue. When the glue is atomized, a large range of spraying can be formed, and the glue is distributed more uniformly, greatly reducing the amount of glue used. Since the range of glue spraying is large, the full gluing of the inner side of the upper can be completed at one time, thus greatly improving the speed of upper gluing, reducing the working hours, and effectively reducing the cost due to the small amount of glue used.

[0084] The glue outlet holes 13 correspond to the air injection holes 12 one by one, that is, the glue outlet holes 13 directly face the air injection holes 12, forming a fan-shaped glue spraying surface 11 with a large spraying range. The glue outlet holes 13 are used for extruding glue, the air injection holes 12 are connected with a high-pressure gas source and the opening and closing of the air injection holes 12 are controlled by an electromagnetic valve.

[0085] Specifically, the glue outlet holes 13 are arranged on a glue outlet plate 16, and the glue outlet plate 16 is located above the glue spraying surface 11 and perpendicular to the glue spraying surface 11.

[0086] In at least one embodiment, the glue spraying seat is provided with an air inlet hole 151, which is communicated with the air jet hole 12. One air inlet hole 151 is convenient for connecting with a high-pressure air source.

[0087] In at least one embodiment, the glue spraying seat can be provided as two parts, namely an upper glue spraying seat 14 and a lower glue spraying seat 15. The upper glue spraying seat 14 is provided with a glue outlet hole 13, and the lower glue spraying seat 15 is provided with a glue spraying surface 11 and an air jet hole 12. The glue spraying seat is divided into two parts, which is convenient for processing.

[0088] The vamp fitting device comprises: a clamping bottom plate 31 fixed on a fitting lifting device; a rear floating clamping device installed at one end of the clamping bottom plate 31; and a front floating clamping device installed at the other end of the clamping bottom plate 31; the front floating clamping device and the rear floating clamping device are used to press the vamp tightly on the vamp mold frame.

[0089] Specifically, the vamp fitting device is located in the first through groove 291 and the mold frame plate 21.

[0090] The rear floating clamping device and the front floating device are symmetrically installed on the clamping bottom plate 31.

[0091] The rear floating clamping device comprises: a rear clamping seat 361 fixed at one end of the clamping bottom plate 31; a rear clamping lever 37 rotatably installed on the rear clamping seat 361; a rear clamping plate 38 fixed at one end of the rear clamping lever 37; a rear clamping cylinder 362 fixed on the rear clamping seat 361 and movably connected with the other end of the rear clamping lever 37; and a rear clamping electromagnetic valve connected with the rear clamping cylinder 362 and being a five-port three-position middle exhaust electromagnetic valve.

[0092] When the rear clamping electromagnetic valve is in a power-off state, the middle exhaust, the cylinder can be freely moved, so that the rear clamping plate 38 can be freely moved when the upper is taken out, that is, it can move with the taper surface of the upper, and the insole and the vamp will not be separated.

[0093] The rear clamping lever 37 and the rear clamping plate 38 realize a longer lever arm, which is convenient for pushing the piston rod of the rear clamping cylinder 362 to move, and the required force is smaller, so that the insole and the vamp are not easily separated when the upper is taken out.

[0094] The rear clamping lever 37 is a straight rod, and the rear clamping cylinder 362 is horizontally arranged.

[0095] The other end of the rear clamping lever 37 is provided with a rear sliding groove 371 and a rear limiting groove 372, the rear sliding groove 371 and the rear limiting groove 372 are perpendicular and communicated; further comprising a rear driving shaft 363, the rear driving shaft 363 is movably inserted in the rear sliding groove 371, and is fixed on the piston rod of the rear clamping cylinder 362, the piston rod of the rear clamping cylinder 362 is movably inserted in the rear limiting groove 372.

[0096] The rear sliding groove 371, the rear limiting groove 372 and the rear driving shaft 363 are used to drive the rear clamping lever 37 to move, so that the position of the rear clamping cylinder 362 is fixed, the rear clamping cylinder 362 does not need to be rotatably installed on the rear clamping seat 361, the space occupied is small, and the structure is compact.

[0097] In at least one embodiment, the rear clamping plate 38 is provided with a waist-shaped rear adjusting hole 381. The rear adjusting hole 381 facilitates adjustment of the length of the rear clamping plate 38, facilitates adjustment of the position according to different uppers, and facilitates position adjustment, so as to ensure that the position of the lining is accurate. The edges of the rear clamping plate 38 are arc-shaped, which will not scratch the vamp and the lining. The rear clamping plate 38 is fixed on the rear clamping lever 37 through the rear fixing plate 364 and the screw.

[0098] The front floating clamping device comprises: a front clamping seat 321 fixed on the other end of the clamping bottom plate 31; a front clamping lever 33 rotatably installed on the front clamping seat 321; a front clamping plate 35 fixed on one end of the front clamping lever 33; a front clamping cylinder 322 fixed on the front clamping seat 321 and movably connected with the other end of the front clamping lever 33; and a front clamping electromagnetic valve connected with the front clamping cylinder 322, the front clamping electromagnetic valve being a five-port three-position middle exhaust electromagnetic valve.

[0099] The front floating clamping device has the same function as the rear floating clamping device, so that the vamp and the vamp mold are well fitted, the position of the lining of all protruding high points is accurate, and the upper is convenient to take out.

[0100] The other end of the front clamping lever 33 is provided with a front sliding groove 331 and a front limiting groove 332, the front sliding groove 331 and the front limiting groove 332 are perpendicular and communicated; further comprising a front driving shaft 34, the front driving shaft 34 is movably inserted in the front sliding groove 331, and is fixed on the piston rod of the front clamping cylinder 322, the piston rod of the front clamping cylinder 322 is movably inserted in the front limiting groove 332.

[0101] The front sliding groove 331, the front limiting groove 332 and the front driving shaft 34 are used to drive the front clamping lever 33 to move, so that the position of the front clamping cylinder 322 is fixed, the front clamping cylinder 322 does not need to be rotatably installed on the front clamping seat 321, the space occupied is small, and the structure is compact.

[0102] The front clamping lever 33 is symmetrically installed at both ends of the front clamping seat 321, the front clamping lever 33 is L-shaped, and the front clamping lever 33 is provided with an avoiding slot 333, and the front driving shaft 34 is movably located in the avoiding slot 333.

[0103] The front clamping seat 321 is a bridge type integral structure, which is compact in structure and convenient to install.

[0104] The front clamping lever 33 is L-shaped, so that the front clamping cylinder 322 is vertically arranged, and the structure is compact. The avoiding slot 333 enables the front clamping plate 35 to be symmetrically arranged, so that the overall structure is compact.

[0105] In at least one embodiment, the front clamping plate 35 is provided with a waist-shaped front adjusting hole 351. The front adjusting hole 351 facilitates adjustment of the length of the front clamping plate 35, is convenient for adjusting the position according to different uppers, and is also convenient for position adjustment, so as to ensure the accurate position of the lining turning. The edges of the front clamping plate 35 are arc-shaped, which will not scratch the upper and the lining. The front clamping plate 35 is fixed on the front clamping lever 33 through the front fixing plate 323 and the screw.

[0106] Four clamping plates are used to fix the upper on the upper mold frame, so that the upper will not be turned over when the lining is turned over, the position of the upper is fixed, and the clamping plate can move with the upper when the upper is removed, so that the lining and the upper will not be separated, and the use is convenient.

[0107] The front clamping plate 35 and the rear clamping plate 38 can press the upper on the upper mold frame during turning, so as to ensure that the lining will not turn over with the upper during turning, and at the same time, the high point of the upper will not be turned over. The high point of the upper refers to the position higher on the shoe opening. When the lining is turned to the inside of the upper and stretched, the high point is easy to turn over with the lining, which causes defects in the upper. The front clamping plate 35 and the rear clamping plate 38 are pressed at the high point, which effectively solves the problem and ensures that the upper has no defects after the lining is turned over.

[0108] The fitting lifting device comprises: a fitting lifting cylinder 861, the fitting lifting cylinder 861 is fixed on the feeding bottom plate 82, and the piston rod of the fitting lifting cylinder 861 is connected with the clamping bottom plate 31; and lifting guide rods 862, the number of the lifting guide rods 862 is not less than two, and the lifting guide rods 862 are fixed on the clamping bottom plate 31 and movably inserted into the feeding bottom plate 82.

[0109] The fitting lifting device is used to drive the rear clamping plate 38 and the front clamping plate 35 to press the upper on the upper mold frame before the lining is turned over, and to drive the front clamping plate 35 and the rear clamping plate 38 to pull out between the lining and the upper after the lining is turned over, so as to realize the insertion and pulling out of the front clamping plate 35 and the rear clamping plate 38, and at the same time, the upper can be loaded onto the mold frame plate 21 without affecting.

[0110] The lining turning device comprises a turning lifting plate 618, the bottom of which is rotationally connected with the lining chuck; a turning frame 631, one end of which is rotationally connected with the tail of the lining chuck; a lower turning fixing device, which is fixed on the turning frame 631 and is used to control whether the lining chuck turns or not; a turning bottom plate 612, which is fixed on the fixing frame 91, and the turning lifting plate 618 is slidingly installed on the turning bottom plate 612; an upper turning fixing device, which is installed on the turning bottom plate 612 and is used to fix the position of the turning lifting plate 618 when the lining chuck turns, so as to limit the turning position; and a turning cylinder 621, one end of which is rotationally installed on the turning bottom plate 612 and the other end of which is rotationally installed on the turning frame 631.

[0111] The lining turns above the shoe opening, so the lining needs to be lifted to the upper part of the shoe opening first. The turning cylinder 621 drives the lining chuck to rise to the turning position first, then the lining is turned, and after the turning is completed, the lining is inserted into the inside of the shoe opening, so that the lining is tightly attached to the inside of the upper, the lining is loosened, the turning of the lining is completed, and the turning cylinder 621 drives the lining chuck to rise to the upper part of the shoe opening.

[0112] The lining chuck first clamps the edge of the lining, the lower turning fixing device first fixes the lining chuck, the lining chuck cannot be turned, the turning cylinder 621 is retracted, the lining chuck rises, when it rises to the turning position, the upper turning fixing device fixes the turning lifting plate 618, the lower turning fixing device loosens the lining chuck, the lining chuck turns to turn the edge of the lining from the downward state to the upward state, after the turning is completed, the upper turning fixing device loosens the turning lifting plate 618, the turning cylinder 621 continues to retract, the turning lifting plate 618 continues to rise to the highest position, the lining is straightened, the glue is coated, then the turning cylinder 621 extends to insert the lining into the inside of the shoe opening, so that the lining is attached to the inside of the upper, finally the turning cylinder 621 drives the lining chuck to rise to the upper part of the shoe opening, so that the upper is taken off.

[0113] The turning cylinder 621 can be used to turn the lining chuck, and at the same time, the lifting of the lining chuck is also realized. One turning cylinder 621 realizes multiple functions, greatly simplifies the structure, makes the structure compact, occupies small space, and is easy to control.

[0114] As Figure 19 and Figure 20As shown, the inner lining clamp includes: a fixed clamp 51, the fixed clamp 51 is provided with a pneumatic cavity 511, an air inlet hole 512 and a spring hole 515, the pneumatic cavity 511 communicates with the air inlet hole 512; a clamp piston 52, the clamp piston 52 is slidingly inserted in the pneumatic cavity 511; a first rotating shaft 55, the first rotating shaft 55 is rotatably installed on the fixed clamp 51; a second rotating shaft 56, the second rotating shaft 56 is rotatably installed at the tail of the fixed clamp 51; a movable clamp 53, the movable clamp 53 is rotatably installed on the first rotating shaft 55, and is oppositely arranged with the fixed clamp 51, the clamp piston 52 is used for driving the movable clamp 53 to be pressed on the fixed clamp 51; and a spread spring 54, the spread spring 54 is movably inserted in the spring hole 515, and is located between the movable clamp 53 and the fixed clamp 51, the spread spring 54 is used for driving the movable clamp 53 to be opened.

[0115] When the air inlet hole 512 is inhaled high-pressure air, the clamp piston 52 is pushed to press the movable clamp 53 on the fixed clamp 51, so that the inner lining is clamped. When the air inlet hole 512 is exhausted, the spread spring 54 opens the movable clamp 53, so that the clamp is opened. The structure is simple, compact, small in space occupation, convenient to control, and convenient to insert into the shoe opening.

[0116] When the inner lining clamp clamps the inner lining, a larger pressure can be generated, and the inner lining clamp can be automatically opened when the air is cut off.

[0117] The movable clamp 53 is clamped through a lever, and the clamping force is large.

[0118] The first rotating shaft 56 is located at the middle part of the movable clamp 53, the spread spring 54 is close to the rotating connection part, the elastic force is small, the cross-sectional area of the clamp piston 52 is reduced, the movable clamp 53 is clamped through a lever, and the clamping force is large.

[0119] In at least one embodiment, the inner lining clamp can also use a micro electric clamp jaw or a pneumatic clamp jaw.

[0120] In at least one embodiment, the movable clamp 53 and / or the fixed clamp 51 is provided with a clamp anti-skid pattern. The clamp anti-skid pattern increases the friction force, and ensures that the inner lining is clamped.

[0121] In at least one embodiment, the top of the clamp piston 52 is semispherical.

[0122] The semispherical friction force is small, so that the opening and closing of the movable clamp 53 is smooth.

[0123] In at least one embodiment, the clamp piston 53 is provided with a sealing gasket and / or a sealing ring.

[0124] In at least one embodiment, bearings are arranged between the first rotating shaft 55 and the fixed chuck 51, and the first rotating shaft 55 is fixed on the movable chuck 53. Bearings are arranged between the second rotating shaft 56 and the fixed chuck 51 and the turnover lifting plate 618.

[0125] In at least one embodiment, the fixed chuck 51 is provided with a first chuck positioning block 514 and a second chuck positioning block 513 on both sides, and the first chuck positioning block 514 and the second chuck positioning block 513 are respectively located on both sides of the first rotating shaft 55.

[0126] The first chuck positioning block 514 and the second chuck positioning block 513 can accurately position the position of the lining chuck, avoid the influence of the turnover position on the clamping of the lining, and make the overall structure simple and stable. The first chuck positioning block 514 is used for positioning the initial state of the lining chuck, that is, limiting the lining chuck when starting to clamp the lining, so as to ensure that the lining chuck can smoothly clamp the lining. The second chuck positioning block 513 is used for positioning the lining chuck after clamping the lining for turnover, so that the lining chuck is almost in a vertical state after turnover, thereby ensuring that the back of the lining can be straightened, facilitating the glue spraying of the lining.

[0127] The lower turnover fixing device comprises a lower positioning cylinder 633 fixed on the turnover frame 631, and a lower positioning block 632 fixed on the piston rod of the lower positioning cylinder 633 and movably inserted into the lower positioning sliding groove of the turnover frame 631. The lower positioning block 632 is used for limiting the rotation of the lining chuck by pressing on the fixed chuck 51 through the lower positioning cylinder 633.

[0128] The lower positioning cylinder 633 facilitates the limitation of the turnover of the lining chuck through the lower positioning block 632, has a simple structure, and is convenient to control.

[0129] In at least one embodiment, the lower positioning block 632 is provided with a first positioning surface 6322 and a second positioning surface 6321. The first positioning surface 6322 is used for limiting the turnover of the lining chuck before turnover, and the second positioning surface 6321 is used for limiting the turnover of the lining chuck after turnover.

[0130] The positioning surface has a large contact area with the fixed chuck 51, which can effectively prevent the fixed chuck 51 from turning over after being stressed, and ensure reliability.

[0131] The upper turnover fixing device comprises an upper positioning cylinder 621 fixed on the turnover bottom plate 612, and an upper positioning rod 620 fixed on the upper positioning cylinder 621 and movably inserted into the turnover bottom plate 612. The turnover lifting plate 618 is provided with an upper turnover positioning hole 6181 matched with the upper positioning rod 620, and the upper positioning rod 620 is used for inserting or pulling out the upper turnover positioning hole 6181 through the upper positioning cylinder 621.

[0132] The upper positioning rod 620 is inserted into the turnover lifting, and since the upper positioning rod 620 is also inserted on the turnover bottom plate 612, the position of the turnover lifting plate 618 can be fixed, and the turnover cylinder 621 can be turned over.

[0133] When the inner lining chuck is in the initial state, the first chuck positioning block 514 is pressed against the outer side of the turnover lifting plate 618, and the lower positioning block 632 is pressed against the fixed chuck 51 under the action of the lower positioning cylinder 633, so that the relative position of the inner lining chuck and the turnover frame 631 is fixed by the first chuck positioning block 514 and the lower positioning block 632, and the inner lining chuck is prevented from rotating; when the lower positioning block 632 releases the fixed chuck 51, the inner lining chuck can rotate. After the inner lining chuck is turned over, it is in a downward vertical state, and the second chuck positioning block 513 is pressed against the inner side of the turnover lifting plate 618, so that the relative position of the inner lining chuck and the turnover frame 631 is fixed by the second chuck positioning block 513 and the lower positioning block 632, and the inner lining chuck is prevented from rotating.

[0134] In at least one embodiment, bearings are arranged on both sides of the upper turnover positioning hole 6181. The bearings can make the upper positioning rod 620 be inserted and pulled out smoothly, have small friction, avoid being stuck, and improve stability.

[0135] In at least one embodiment, the turnover device further comprises a first positioning plate 615 fixed on the turnover bottom plate 612, a second positioning plate 613 fixed on the turnover lifting plate 618 and located above the first positioning plate 615, and a third positioning plate 614 fixed on the turnover lifting plate 618 and located below the first positioning plate 615.

[0136] The positioning plates can limit the highest position and the lowest position of the inner lining chuck, and at least ensure that the edge of the inner lining can be accurately clamped. The highest position can stretch the inner lining to a straight state, and avoid that the position of the upper changes due to the straight position being too high.

[0137] Compared with the prior art in which the maximum extension position and the minimum retraction position of the cylinder are used for positioning, the positioning is more accurate, and the impact on the cylinder is small.

[0138] The turnover bottom plate 612 is provided with one positioning plate, and the turnover lifting plate 618 is provided with two positioning plates, so that the number of positioning plates is minimized, and installation and use are convenient.

[0139] The lining moving device comprises: a turnover fixed frame 71 fixedly installed on the bottom plate 92; a transverse moving device slidably installed on the turnover fixed frame 71, and provided with the lining turnover device; and a longitudinal moving device slidably installed on the turnover fixed frame 71, and provided with the lining turnover device, wherein the transverse moving device is symmetrically arranged on both sides of the longitudinal moving device.

[0140] The transverse moving device and the longitudinal moving device are arranged in a T shape, the transverse moving device is used for moving along the two sides of the upper, and the longitudinal moving device is used for reciprocating in the direction of the heel.

[0141] The lining turnover device is not less than three, so that the lining turnover device is arranged along the contour of the lining, and the two sides and the root of the lining are driven to turn over, thereby ensuring stable and complete turnover of the lining.

[0142] In at least one embodiment, two lining turnover devices are symmetrically arranged on the longitudinal moving device.

[0143] The longitudinal moving device comprises: a longitudinal moving seat 73 slidably installed on the turnover fixed frame 71 and connected with the lining turnover device; and a longitudinal moving cylinder 76 fixed on the turnover fixed frame 71 and connected with the longitudinal moving seat 73; and the transverse moving device comprises: a transverse moving seat 74 slidably installed on the turnover fixed frame 71 and connected with the lining turnover device; and a transverse moving cylinder 75 fixed on the turnover fixed frame 71 and connected with the transverse moving seat 74.

[0144] The longitudinal moving seat 73 and the transverse moving seat 74 are both connected with the turnover bottom plate 612, so as to drive the lining turnover device to move.

[0145] The longitudinal moving seat 73 and the transverse moving seat 74 are both connected with the turnover bottom plate 612, so as to drive the lining turnover device to move.

[0146] Specifically, the turnover bottom plate 612 is fixed on the longitudinal moving seat 73 and the transverse moving seat 74 respectively. The longitudinal moving seat 73 and the transverse moving seat 74 are both installed on the turnover fixed frame 71 through a linear guide pair.

[0147] When working, the fitting lifting cylinder 861, the transverse moving cylinder 75 and the longitudinal moving cylinder 76 are all in the retracted state; the feeding cylinder 83, the shoe rack lifting cylinder 84, the first pressing cylinder 242, the second pressing cylinder 272 and the turnover cylinder 621 are all in the extended state; firstly, the upper is inserted into the inner side of the mold frame plate 21, and the lining is inserted into the outer side of the separation plate 211, and the lining is separated from the upper; then the first pressing cylinder is extended, and the first pressing plate 22 presses the upper on the mold frame plate 21; the glue spraying device starts to spray glue, or the glue spraying device sprays glue when the mold frame plate 21 moves to the lining turnover device; the feeding cylinder 83 is retracted, the upper moves to the lower side of the lining turnover device, the lining clamp surrounds the outer side of the upper, and the lining clamp is in the open state, then the shoe rack lifting cylinder is retracted, the edge of the lining is inserted between the fixed clamp 51 and the movable clamp 53 of the lining clamp, then the air inlet hole 512 is ventilated, the clamp piston 52 lifts the movable clamp 53, and the movable clamp 53 presses the lining on the fixed clamp 51. At this time, the lining clamp is in the lowest position, the upper positioning cylinder 621 is in the retracted state, the turnover lifting plate 618 is in the state of being able to be lifted and lowered, the lower positioning cylinder 633 is in the extended state, the lower positioning block 632 is pressed on the fixed clamp 51, the fixed clamp 51 and the position of the turnover frame 631 are relatively fixed, and the fixed clamp 51 cannot rotate around the second rotating shaft 56.Then the turnover cylinder 621 starts to retract, because the relative position of the insole clamp and the turnover frame 631 is fixed, the insole clamp drives the turnover lifting plate 618 to rise, when the insole clamp rises to the turnover position, that is, rises to no lower than the shoe opening of the upper, the insole clamp is not affected by the turnover; the upper positioning cylinder 621 extends, the upper positioning rod 620 is inserted into the upper turnover positioning hole 6181 of the turnover lifting plate 618, the position of the turnover lifting plate 618 is fixed and cannot rise and fall, then the lower positioning cylinder 633 retracts, the lower positioning block 632 leaves the fixed clamp 51, the fixed clamp 51 can rotate around the second rotating shaft 56, the turnover cylinder 621 continues to retract, the fixed clamp 51 is driven to rotate by the turnover cylinder 621, the insole clamp is turned from the obliquely upward state to the vertically downward state, the turnover of the insole is completed, the lower positioning cylinder 633 extends to press the lower positioning block 632 to the fixed clamp 51, the position of the insole clamp is fixed and cannot rotate; then the transverse moving cylinder 75 and the longitudinal moving cylinder 76 both extend to move the insole clamp to the upper side of the shoe opening, the upper positioning cylinder 621 retracts, the upper positioning rod 620 is pulled out of the upper turnover positioning hole 6181, the turnover cylinder 621 is still in the retracted state, therefore the turnover lifting plate 618 continues to rise until it rises to the highest point, at this time the insole is straightened, which facilitates the glue spraying on the insole, after the glue spraying is completed, the fitting lifting cylinder 861 extends, the front clamping cylinder 322 and the rear clamping cylinder 362 press the front clamping plate 35 and the rear clamping plate 38 on the upper respectively, and the upper is pressed on the mold frame plate 21; then the turnover cylinder 621 extends, the insole clamp is driven to descend to the lowest point by the turnover cylinder 621, the insole is pressed on the inside of the upper, so that the insole is bonded to the inside of the upper by the glue, then the air inlet hole 512 exhausts, the movable clamp 53 leaves the fixed clamp 51 under the action of the unfolding spring 54, and the insole is loosened, the turnover and fitting of the insole are completed. Finally, the turnover cylinder 621 retracts to drive the insole clamp to rise to the turnover position or the highest point, then the transverse moving cylinder 75 and the longitudinal moving cylinder 76 drive the insole clamp to move to the outside of the upper, the insole clamp is turned again to turn the insole clamp to the initial state of upward; the front clamping electromagnetic valve and the rear clamping electromagnetic valve become the intermediate state, the fitting lifting cylinder 861 retracts, the front clamping plate 35 and the rear clamping plate 38 are pulled out of the upper and the insole, the upper is taken off, a new upper is put into the insole to be turned over, the insole clamp is lowered to the edge of the insole to clamp the insole and continue to turn over. When the insole clamp rises to the turnover position, the upper positioning cylinder 621 extends, so that the insole clamp moves and turns over at the turnover position, the stroke of the turnover lifting plate 618 is reduced, and the efficiency is improved.

[0148] As shown in Figure 31 The cross-sectional structure diagram of the insole 902 and the upper 901 being expanded, and the insole 902 not being turned over. The automatic turnover device of the sports shoe insole is used to turn over the insole 902 to the inside of the upper 901, and to apply glue on the upper 901 and the insole 902.

[0149] Embodiment 2:

[0150] On the basis of the above embodiment one, the end of the vamp mold frame plate 21 is provided with an extension slot 214. The extension slot 214 can extend the length of the mold frame plate 21 inside the vamp, fix the vamp more stably, and the extension slot 214 matches the vamp because the vamp is inclined, avoiding lifting the vamp.

[0151] Embodiment 3:

[0152] The difference between this embodiment and embodiment one is the relative position of the air injection hole 12 and the glue outlet hole 13. The glue outlet hole 13 of this embodiment is staggered with the air injection hole 12.

[0153] The glue outlet hole 13 is staggered with the air injection hole 12, that is, the glue outlet hole 13 is arranged on the side of the air injection hole 12, the diffusion of the glue is better, and the distribution is uniform.

[0154] In at least one embodiment, the air injection hole 12 is not less than three, and is arranged at equal intervals; the glue outlet hole 13 is not less than two, the glue outlet hole 13 is arranged at equal intervals, and is located between the adjacent two air injection holes 12.

[0155] When the glue outlet hole 13 is directly opposite the air injection hole 12, the glue receives a larger air pressure and a faster airflow speed, forming a larger impact. Although a fan-shaped glue injection surface 11 can be formed, there is more glue in the center and less glue on both sides, and the uniformity is poor. Therefore, multiple glue outlet holes 13 and air injection holes 12 need to be arranged.

[0156] When the air injection hole 12 is staggered with the glue outlet hole 13, the influence of air injection on the glue can be reduced. The turbulent flow can be formed between the adjacent two air injection holes 12, which can uniformly atomize the glue. The air pressure and airflow speed are smaller, the glue atomization time is longer, the glue atomization is more thorough, and the glue can be uniformly distributed and sprayed on the inner side of the vamp under the pushing of the airflow, forming a uniform glue coating.

[0157] In at least one example, the air injection hole 12 is provided with eight, and the glue outlet hole 13 is provided with four. The glue outlet hole 13 is located between the adjacent two air injection holes 12.

[0158] In at least one example, the air injection hole 12 is arranged in two rows from top to bottom. The two rows of air injection holes 12 can ensure the atomization effect of the glue, and can form a stable injection direction to ensure the stability of the spraying area.

[0159] In at least one embodiment, the glue spraying surface 11 is a circular arc surface. The circular arc surface can match the inner side of the upper, ensuring that the glue covers the position where glue is needed. The glue outlet holes 13 and the air outlet holes 12 are arranged at equal intervals along the circular arc-shaped glue spraying surface 11, the coverage of the glue spraying matches the inner side of the upper, and the circular arc surface can be sprayed without rotating the nozzle, greatly improving the glue spraying efficiency and simplifying the glue spraying structure.

[0160] In at least one embodiment, the top of the glue spraying seat is provided with a glue tank 141, the bottom of the glue tank 141 is provided with a glue outlet hole 13; and the upper cover plate 18 is fixed on the top of the glue spraying seat, and the upper cover plate 18 is provided with a glue inlet hole 181 which communicates with the glue tank 141.

[0161] The glue tank 141 facilitates the processing of the glue spraying seat and the feeding of glue. After the glue enters the glue tank 141, it can flow out uniformly from each glue outlet hole 13.

[0162] Specifically, the glue spraying seat is provided with a sealing gasket 17 between the glue spraying seat and the upper cover plate 18.

[0163] The number of parts is small, and the processing and cleaning are convenient.

[0164] In at least one embodiment, the bottom of the glue tank 141 is provided with a glue collecting tank 142, and the glue collecting tank 142 is located on one side of the glue outlet hole 13. When the feeding of glue is stopped, the glue collecting tank 142 can make the glue flow back into the glue collecting tank 142, avoiding continuous dripping of the glue from the glue outlet hole 13.

[0165] In at least one embodiment, the glue spraying seat is further provided with a guide plate 17, and the guide plate 17 is located on the other side of the glue spraying surface 11. The glue spraying surface 11, the guide plate 17 and the glue outlet plate 16 where the glue outlet hole 13 is located together form a glue spraying groove, which can limit the position of the upward and downward diffusion of the glue during glue spraying, avoiding the large diffusion range of the glue sprayed onto the upper. The guide plate 17 and the glue outlet plate 16 are used to limit the position of the upward and downward diffusion of the glue, so that the sprayed glue is constrained within a certain width.

[0166] Embodiment 4:

[0167] The embodiment further comprises a shoe rack lifting and limiting device based on any of the above embodiments, and the shoe rack lifting and limiting device comprises: a shoe rack limiting plate 85 fixed on the fixed bottom plate 92 and located on both sides of the shoe rack base 29, and the shoe rack limiting plate 85 is provided with a shoe rack limiting groove 851; and a shoe rack limiting roller 872 fixed on both sides of the shoe rack base 29 and movably located in the shoe rack limiting groove 851.

[0168] The shoe rack limiting roller 872 is symmetrically fixed on both sides of the shoe rack base 29, and two shoe rack limiting rollers 872 are arranged on each side. The shoe rack limiting roller 872 is rotatably installed on the limiting connecting frame 871, and the limiting connecting frame 871 is fixed on the shoe rack base 29.

[0169] The diameter of the shoe rack limiting roller 872 is smaller than the width of the shoe rack limiting groove 851, so that the shoe rack base 29 has a certain up-down lifting distance. The shoe rack limiting roller 872 can roll in the shoe rack limiting groove 851, which can limit the up-down position of the pressing bottom plate 29, and facilitate the movement of the shoe rack base 29, so that the shoe rack base 29 is stable and reliable.

[0170] The shoe rack limiting roller 872 and the shoe rack limiting plate 85 mainly solve the problem that the lifting positions of the shoe rack lifting cylinders 84 on both sides of the shoe rack base 29 are not uniform, and make the shoe rack base 29 not located at the extreme position of the shoe rack lifting cylinder 84 when being lifted and retracted, so as to ensure reliable pressing force and accurate position of the mold base plate 21 when being lifted and retracted.

[0171] The use of the shoe rack limiting roller 872 and the shoe rack limiting plate 85 also solves the problem of compact space, because the shoe rack base 29 moves above the fixed bottom plate 92, avoiding interference and large space occupation caused by other positioning devices.

[0172] Embodiment 5:

[0173] On the basis of the above-mentioned embodiment one, further comprising: an upper sliding frame 622, the upper sliding frame 622 being fixed on the turnover bottom plate 612, and an upper positioning cylinder 621 being fixed on the upper sliding frame 622; and an upper linkage frame 623, one end of the upper linkage frame 623 being connected with a piston rod of the upper positioning cylinder 621, and the other end of the upper linkage frame 623 being provided with an upper positioning rod 620. The upper sliding frame 622 and the upper linkage frame 623 make the turnover cylinder 621 not interfere with the upper positioning rod 620, so as to make the structure compact. Because the shoe opening is small, the use of the upper sliding frame 622 and the upper linkage frame 623 can change the position of the upper positioning rod 620, so that multiple turnover devices can be combined for use, and the complete turnover of the lining is ensured.

[0174] Embodiment 6:

[0175] On the basis of any one of the above-mentioned embodiments, further comprising an elastic device 634, the elastic device 634 being fixed on the turnover frame 631 and corresponding to the turnover lifting plate 618, and being used for lifting the turnover frame 631 when resetting after turnover.

[0176] When the lining clamp head is turned to a state close to vertical, the lining clamp head is at a dead point, the turnover cylinder 621 cannot push the lining clamp head to turn over, and the elastic device 634 can lift the lining clamp head to make the lining clamp head rotate by a certain angle and leave the dead point, so that the turnover cylinder 621 can normally push the lining clamp head to turn over.

[0177] In order to facilitate subsequent spraying of the lining, the lining needs to be straightened vertically, so the lining clamp needs to be rotated to a nearly vertical state, which makes the lining clamp nearly parallel to the turnover lifting plate 618, thus forming a dead angle, causing the turnover cylinder 621 to fail to drive the lining clamp to rotate, and the elastic device 634 can provide an elastic force to lift the lining clamp away from the turnover lifting plate 618, forming a small angle of departure from the dead point, and then enabling the turnover cylinder 621 to rotate the lining clamp to the initial position.

[0178] In at least one embodiment, the elastic device 634 can be a nitrogen spring, or a spring plunger or other existing device with elasticity, which provides an initial force for the lining clamp to rotate.

[0179] Embodiment 7:

[0180] On the basis of any one of the above embodiments, further comprising a turnover detection device, the turnover detection device comprising: a first turnover sensor 651, the first turnover sensor 651 being fixed on the turnover frame 631; a second turnover sensor 652, the second turnover sensor 652 being fixed on the turnover frame 631 and located below the first turnover sensor 651; a turnover detection plate 66, the turnover detection plate 66 being provided with a first detection rod 661 and a second detection rod 662, the first turnover sensor 651 being oppositely arranged with the second detection rod 662 when the lining clamp is not turned over, and the second turnover sensor 652 being oppositely arranged with the first detection rod 661 after the lining clamp is turned over.

[0181] The first turnover sensor 651 and the second turnover sensor 652 are used to determine the position of the lining clamp to prevent false operation.

[0182] The first detection rod 661 is horizontally arranged, and the second detection rod 662 is vertically arranged. In order to facilitate installation, the first detection rod 661 and the second detection rod 662 are both arranged on the turnover detection plate 66.

[0183] In at least one embodiment, the first turnover sensor 651 and the second turnover sensor 652 are both mounted on the turnover fixing plate 653, and the turnover fixing plate 653 is provided with a sensor fixing groove to facilitate fixing the position of the sensor and facilitate installation.

[0184] When the lining clamp is in the initial state of clamping the lining, the first turnover sensor 651 is directly opposite the second detection rod 662, and when the lining clamp is turned over, the second turnover sensor 652 is directly opposite the first detection rod 661.

[0185] In no less than one embodiment, a third turnover sensor 773, a fourth turnover sensor 772 and a fifth turnover sensor 771 are further included, wherein the third turnover sensor 773 is used for detecting when the lining clamp is in the lowest position, the fourth turnover sensor 772 is used for detecting when the lining clamp is raised to the turnover position, so as to control the upper turnover fixing device to lock the turnover lifting plate 618, and the fifth turnover sensor 771 is used for detecting when the lining clamp is raised to the highest position, i.e., the third turnover sensor 773, the fourth turnover sensor 772 and the fifth turnover sensor 771 are respectively used for detecting the three working positions of the turnover cylinder 621.

[0186] The third turnover sensor 773, the fourth turnover sensor 772 and the fifth turnover sensor 771 are all fixed on a sensor fixing plate 774, and the sensor fixing plate 774 is fixed on the turnover fixing frame 71. The turnover detection rod 775 is arranged on the turnover lifting plate 618, and the turnover detection rod 775 is used for detection of the turnover sensor.

[0187] Without the fourth turnover sensor 772, the upper positioning cylinder 621 is in the extended state when the turnover cylinder 621 is in the retracted state, and the upper positioning rod 620 is pressed on the turnover lifting plate 618. When the turnover lifting plate 618 is raised to the upper turnover positioning hole 6181 opposite to the upper positioning rod 620, the upper positioning rod 620 is inserted into the upper turnover positioning hole 6181, and there is sliding friction between the upper positioning rod 620 and the turnover lifting plate 618. The sliding friction can be changed into rolling friction by rollers, but there is pressure on the turnover lifting plate 618, which easily affects the work of the turnover lifting plate 618. The fourth turnover sensor 772 can be used to start the upper positioning cylinder 621 when the turnover lifting plate 618 is raised to the turnover position, and the upper positioning cylinder 321 does not need to be in the extended state when the turnover cylinder 621 is retracted, so that the work of the turnover lifting plate 618 is smooth.

[0188] The first turnover sensor 651, the second turnover sensor 652, the third turnover sensor 773, the fourth turnover sensor 772 and the fifth turnover sensor 771 can all be proximity switches.

[0189] Embodiment 8:

[0190] The automatic lining forming device for sports shoes comprises: an automatic turnover device for sports shoe lining; a heat setting device 94 fixed on a fixed bottom plate 92 and located on one side of the automatic turnover device for sports shoe lining, which is used for heating and drying glue water of the upper and setting the upper; and a material moving device installed on a fixed frame 91 and located above the upper mold frame and the heat setting device 94, which is used for moving the turned and formed upper to the heat setting device 94 and moving the heat set upper out of the heat setting device 94.

[0191] Specifically, the heat setting device 94 is a mature device in the prior art, which presses and heats the upper through a cylinder and a clamp to make the glue quickly solidify. The clamp is a profiling clamp similar to the shape of the upper.

[0192] The material moving device comprises a material moving linear module 931 installed on the fixed frame 91 and located above the upper mold frame, two sliding tables are arranged on the material moving linear module 931, and the distance between the two sliding tables is the distance between the upper mold frame and the heat setting device 94; a material moving lifting cylinder 932 fixed on the sliding table of the material moving linear module 931; and material moving clamping jaws 933 fixed on the piston rods of the material moving lifting cylinder 932 and symmetrically arranged.

[0193] The material moving clamping jaws 933 are pneumatic clamping jaws, and the material moving lifting cylinder 932 is a multi-axis cylinder. The material moving lifting cylinder 932 first drives the material moving clamping jaws 933 to descend to the upper of the upper mold frame and the heat setting device 94, the material moving clamping jaws 933 clamp the upper, the material moving lifting cylinder 932 retracts, then the material moving linear module 931 drives the material moving clamping jaws 933 to move, so that the upper after the insole is turned over is moved to the heat setting device 94 for heat curing and setting, the upper after the curing and setting is moved out of the heat setting device 94 and falls into the turnover box, the degree of automation is high, the efficiency is high, the waiting time is shortened, and the process continuity is strong.

[0194] Embodiment 9:

[0195] The method for forming the insole of the sports shoes comprises the following steps:

[0196] S1, the upper mold frame is located at a position for loading the upper, the upper mold frame is extended, the upper is inserted into the upper mold frame, the upper is separated from the insole, and the upper clamping device clamps the upper on the upper mold frame;

[0197] S2, the upper moving device moves the upper mold frame to the lower side of the insole turning device and to the upper side of the insole clamp head;

[0198] S3, the upper mold frame is retracted, the insole is inserted into the insole clamp head, and the insole clamp head clamps the edge of the insole;

[0199] S4, the insole turning device lifts the insole clamp head to an insole turning position and turns the insole clamp head, so that the insole clamp head changes from upward to downward;

[0200] S5, the insole moving device drives the insole turning device to move to the upper side of the shoe opening of the upper;

[0201] S6, the insole turning device continues to lift the insole clamp head to an insole straightening position;

[0202] S7, the glue spraying device sprays glue on the insole and / or the inner side of the upper.

[0203] S8, the upper fitting device is raised to the insole turning position and presses the upper on the upper mold, and the upper fitting device fixes the joint of the upper and the insole;

[0204] S9, the insole turning device continues to drive the insole clamp to descend to the inside of the shoe opening, completes the turning of the insole, and covers the insole to the inner side of the upper;

[0205] S10, the insole clamp device clamps the insole to the inner side of the upper;

[0206] S11, the insole turning device drives the insole clamp to rise above the shoe opening, and the upper fitting device descends and separates from the upper;

[0207] S12, the insole moving device drives the insole turning device to move to the outside above the shoe opening;

[0208] S13, the insole turning device drives the insole clamp to turn, so that the insole clamp turns from downward to upward;

[0209] S14, the insole turning device drives the insole clamp to descend to the initial position, the upper moving device moves the upper mold to the position of loading the upper, and the upper mold extends.

[0210] In step S2, the glue spraying device sprays glue on the inner side of the upper.

[0211] S4 and S5 can be performed synchronously. In S11, the insole clamp can be raised and the upper fitting device can be descended respectively or synchronously.

[0212] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be explained as the limitation of the protection scope of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these embodiments will fall within the protection scope of the claims of the present application.

Claims

1. An automatic flipping device for the lining of athletic shoes, characterized in that, include: A fixed frame, on which a fixed base plate is mounted; A shoe upper moving device, wherein the shoe upper moving device is mounted on the fixed frame; A shoe rack lifting device, wherein the shoe rack lifting device is mounted on the shoe upper moving device; A shoe upper mold frame, which is installed on the shoe rack lifting device, is used to hold the shoe upper; A shoe upper clamping device is installed on the shoe upper mold frame and is used to clamp the shoe upper; A lining clamping device is installed on the shoe upper mold frame and is used to clamp the lining; A glue spraying device, which is installed on the shoe upper moving device, is used for applying glue to the shoe upper and lining; A fitting and lifting device is mounted on the shoe upper moving device; A shoe upper bonding device is mounted on the bonding lifting device and is used to bond the shoe upper to the shoe upper mold frame and support the shoe upper. A lining flipping device is fixed on the fixed base plate and located above the shoe upper mold frame, for flipping the lining; Lining clamp, which is mounted on the lining flipping device, is used to clamp the lining; and A lining moving device is mounted on a fixed base plate and connected to the lining flipping device for moving the lining flipping device. Multiple shoe upper clamping devices are provided along the shoe upper mold frame, and the shoe upper clamping devices include: The first clamping seat is fixed on the shoe upper mold frame; The first pressing plate is rotatably mounted on the first pressing seat and is located inside the shoe upper mold frame; A first clamping rod, one end of which is rotatably connected to the bottom of the first clamping plate; and The first clamping cylinder is fixed on the first clamping seat and connected to the first clamping rod; The lining clamping device is provided in multiple units along the shoe upper mold frame, and the lining clamping device includes: The second clamping seat is fixed on the shoe upper mold frame; The second pressing plate is rotatably mounted on the second pressing seat and is located inside the shoe upper mold frame; A second clamping rod, one end of which is rotatably connected to the bottom of the second clamping plate; and The second clamping cylinder is fixed on the second clamping seat and connected to the second clamping rod; The shoe upper mold frame includes: The mold frame plate is mounted on the shoe rack lifting device; and Separation plates are provided, with multiple separation plates symmetrically arranged along the outer side of the mold frame plate, and separation protrusions are provided on the separation plates.

2. The automatic flipping device for sports shoe lining according to claim 1, characterized in that, The adhesive spraying device includes: A glue spray head includes a glue spray base, which has a glue spraying surface, a glue outlet, and a jet nozzle. The glue spraying surface corresponds to the surface to be coated with glue. The glue spraying surface has at least one jet nozzle. The glue outlet is located on one side of the glue spraying surface and has at least one outlet. The glue outlet is opposite to the jet nozzle. The jet nozzle is used to atomize the glue and blow it onto the surface to be coated with glue when the glue is dispensed from the glue outlet. A glue spraying rod, wherein the glue spraying head is mounted on the top of the glue spraying rod; A glue spraying linear module is fixed on the shoe upper moving device, and a glue spraying rod is fixed on the slide table of the glue spraying linear module.

3. The automatic flipping device for sports shoe lining according to claim 1, characterized in that, It also includes an upper bonding device, the upper bonding device comprising: A clamping base plate is fixed to the fitting lifting device; A rear floating clamping device is installed at one end of the clamping base plate; A front floating clamping device, wherein the front floating clamping device is mounted at the other end of the clamping base plate; and The front floating clamping device and the rear floating clamping device are used to press the shoe upper onto the shoe upper mold frame.

4. The automatic flipping device for the lining of athletic shoes according to claim 1, characterized in that, The lining flipping device includes: A tilting lifting plate, the bottom of which is rotatably connected to the lining clamp; A flipping frame, one end of which is rotatably connected to the tail of the lining clamp; A lower flip-up fixing device is fixed on the flip-up frame and is used to control whether the lining clamp flips. A flip-up base plate is fixed on the fixed frame, and a flip-up lifting plate is slidably mounted on the flip-up base plate. The upper flipping fixing device is installed on the flipping base plate and is used to fix the position of the flipping lifting plate when the lining clamp flips, thus limiting the flipping position; and A tilting cylinder, one end of which is rotatably mounted on the tilting base plate, and the other end of which is rotatably mounted on the tilting frame.

5. The automatic flipping device for the lining of athletic shoes according to claim 1, characterized in that, The lining clamp includes: A fixed clamp is rotatably mounted on the lining flipping device. The fixed clamp is provided with a pneumatic cavity, an air inlet, and a spring hole. The pneumatic cavity communicates with the air inlet. A chuck piston, which is slidably inserted into the pneumatic chamber; A first rotating shaft is rotatably mounted on the fixed clamp. The second rotating shaft is rotatably mounted at the tail of the fixed clamp; A movable chuck is rotatably mounted on the first rotating shaft and is disposed opposite to the fixed chuck. A chuck piston is used to drive the movable chuck to press against the fixed chuck. An opening spring is movably inserted into the spring hole and located between the movable clamp and the fixed clamp. The opening spring is used to drive the movable clamp to open.

6. The automatic flipping device for the lining of athletic shoes according to claim 1, characterized in that, The lining moving device includes: A flip-up fixing frame is mounted on the fixing base plate; A lateral moving device, slidably mounted on the flipping fixing frame, wherein a lining flipping device is mounted on the lateral moving device; and A longitudinal moving device is slidably mounted on the flipping and fixing frame, and a lining flipping device is mounted on the longitudinal moving device. The transverse moving device is symmetrically located on both sides of the longitudinal moving device. The shoe upper moving device includes: A feeding base, which is mounted on the fixed frame; A feeding base plate, wherein the feeding base plate is slidably mounted on the feeding base; and A feeding cylinder is fixed on the feeding base and connected to the feeding base plate.

7. An automatic forming device for sports shoe linings, characterized in that, include: The automatic flipping device for the lining of athletic shoes according to any one of claims 1 to 6; A heat-setting device is fixed on the fixed base plate and located on one side of the automatic flipping device for the lining of the sports shoe, and is used to heat and dry the glue on the shoe upper and set the shoe upper. A material transfer device is installed on the fixed frame and located above the shoe upper mold frame and the heat setting device. The material transfer device is used to move the flipped and formed shoe upper onto the heat setting device and to move the heat-set shoe upper out of the heat setting device.

8. A method for forming the lining of athletic shoes, based on the automatic forming device for the lining of athletic shoes as described in claim 7, characterized in that, Includes the following steps: S1. The shoe upper mold frame is in the position of inserting the shoe upper. The shoe upper mold frame extends out, and the shoe upper is inserted into the shoe upper mold frame. The shoe upper is separated from the lining. The shoe upper clamping device clamps the shoe upper onto the shoe upper mold frame. S2. The shoe upper moving device moves the shoe upper mold frame below the lining flipping device and above the lining clamp; S3. The shoe upper mold frame retracts, the lining is inserted into the lining clamp, and the lining clamp clamps the edge of the lining; S4. The lining flipping device lifts the lining clamp to the lining flipping position and flips the lining clamp so that the lining clamp changes from facing up to facing down. S5. The lining moving device drives the lining flipping device to move above the shoe opening of the shoe upper. S6. The lining flipping device continues to drive the lining clamp to rise to the lining straightening position; S7. The adhesive spraying device sprays adhesive onto the lining and / or the inside of the shoe upper. S8. The shoe upper bonding device rises to the lining flip position and presses the shoe upper onto the shoe upper mold frame, while the shoe upper bonding device fixes the joint between the shoe upper and the lining. S9. The lining flipping device continues to drive the lining clamp down to the inside of the shoe opening, completing the flipping of the lining and attaching the lining to the inner side of the shoe surface. S10, the lining clamping device clamps the lining to the inner side of the shoe upper; S11. The lining flipping device drives the lining clamp to rise above the shoe opening, and the shoe upper bonding device descends and detaches from the shoe upper. S12, The lining moving device drives the lining flipping device to move to the outer side above the shoe opening; S13. The lining flipping device drives the lining clamp to flip, so that the lining clamp flips from facing down to facing up; S14. The lining flipping device drives the lining clamp to descend to the initial position, the shoe upper moving device moves the shoe upper mold frame to the shoe upper insertion station, and the shoe upper mold frame extends.

Citation Information

Patent Citations

  • High-efficiency safety shoe production line

    CN113229571A

  • Preparation safety shoe assembly line

    CN208176184U

  • Automatic flipping device and automatic forming device for athletic shoe lining

    CN218852078U