Cold-hot setting machine for shoe processing and setting process thereof

Abstract

The present application relates to shoe making equipment technical field, particularly to a kind of cold and hot setting machine for shoe processing and its setting process, wherein the cold and hot setting machine for shoe processing includes machine body, hot die assembly, shoe die assembly and cold die assembly, hot die assembly is located at one side of machine body, for the hot setting of toe material, shoe die assembly and cold die assembly are both arranged on machine body, and cold die assembly is opposite to shoe die assembly, and cold die assembly is used to cool the toe material after hot setting.This application sets up intermediate flexible pad, and the material at the thicker position of the flanging part is dispersed to each part of the flanging part by the intermittent rotation of the two intermediate flexible pads, thereby increasing the thickness consistency of each part of the toe material, so that the cooling speed of each part of the toe material is basically consistent when the toe material is cooled and set subsequently, thereby making the cooling and setting effect of the shoe die assembly to the toe material better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shoe-making equipment, in particular to a cold and hot setting machine for shoe processing and a setting process thereof. BACKGROUND

[0002] The cold and hot toe setting machine is a special equipment used for heating and pressure setting treatment of shoe toe (especially leather shoes, sports shoes and other shoes that need to be fixed modeling) in the shoe-making industry. Through the synergistic effect of specific temperature, pressure and time, the shoe toe material (such as leather, mesh composite layer, etc.) forms the three-dimensional shape (such as round head, square head, sharp head, and tilted head) required by design, while enhancing the stiffness, shape retention and durability of the shoe toe. It is a key equipment for determining the aesthetic and structural stability of shoes in shoe production.

[0003] In specific operation, the staff first puts the shoe toe material into the steam setting module of the cold and hot toe setting machine to pre-set the shoe toe material at high temperature, and then puts the heated shoe toe material into the cold setting module. The hydraulic machine drives the pressing component (the core is a silica gel pressing pad) to move downward, so as to press the shoe toe material through the pressing component, so that the shoe toe material is attached to the last, and the cooling liquid in the last is circulated to cool and set the shoe toe material. However, since the shoe toe material is pressed into a three-dimensional shape from an approximately planar shape, the material thickness is not uniform at the turning area, and the closer to the turning area, the thicker the material. This also causes the shoe toe material to have inconsistent pressure at different positions after the silica gel pressing pad is in close contact with the shoe toe material, thereby affecting the subsequent cooling and setting effect of the shoe toe material. SUMMARY

[0004] Therefore, it is necessary to provide a cold and hot setting machine for shoe processing and a setting process thereof to solve the problem of inconsistent thickness of the shoe toe material at different positions, which leads to poor cooling and setting effect.

[0005] The above-mentioned purpose is achieved by the following technical solutions:

[0006] A cold and hot setting machine for shoe processing comprises:

[0007] a machine body;

[0008] a hot module component arranged on one side of the machine body for hot setting of the shoe toe material;

[0009] a shoe mold component arranged on the machine body;

[0010] a cold module component arranged on the machine body, the cold module component being opposite to the shoe mold component, and the cold module component being used for cold setting of the hot set shoe toe material;

[0011] The cold die assembly comprises a first hydraulic rod, a rigid support part, an upper flexible pressing pad, a lower flexible pressing pad and an intermediate flexible pressing piece, the fixed end of the first hydraulic rod is arranged on the machine body, the telescopic end is fixedly connected with the rigid support part, the upper flexible pressing pad and the lower flexible pressing pad are arranged in a spaced manner in the vertical direction and are connected to the rigid support part, and the shaped curved surfaces of the upper flexible pressing pad and the lower flexible pressing pad coincide in the vertical direction, the intermediate flexible pressing piece is arranged on the rigid support part and is located between the upper flexible pressing pad and the lower flexible pressing pad.

[0012] The intermediate flexible pressing piece comprises an intermediate flexible pressing pad, a driving unit and a support unit, the support unit is arranged on the rigid support part, the intermediate flexible pressing pad has two, the two intermediate flexible pressing pads are rotationally connected to the support unit, the shaped curved surfaces of the two intermediate flexible pressing pads are matched with the shaped curved surfaces of the upper flexible pressing pad and the lower flexible pressing pad, and the driving unit is arranged on the support unit and is used for driving the intermediate flexible pressing pad to rotate intermittently.

[0013] Preferably, the intermediate flexible pressing piece further comprises a plurality of pressing rollers, the plurality of pressing rollers are arranged at intervals along the outer side surface of the intermediate flexible pressing pad and are rotationally connected to the intermediate flexible pressing pad.

[0014] Preferably, the support unit comprises an outer support frame, a first support, a second support, a first gear and a second gear, the outer support frame is fixedly connected with the rigid support part, the first support and the second support each have two, the two first supports are arranged at two ends of the outer support frame, the two second supports are arranged at intervals on the outer support frame and are located between the two first supports, the first gear is rotationally arranged on the first support and is engaged with the inner side surface of one end of the intermediate flexible pressing pad, and the second gear is rotationally arranged on the second support and is engaged with the inner side surface of the other end of the intermediate flexible pressing pad.

[0015] Preferably, the driving unit comprises a driving motor and a transmission module, the driving motor is arranged on the first support, and the transmission module is connected between the output shaft of the driving motor and the first gear.

[0016] Preferably, the first support is arranged on the outer support frame through a second hydraulic rod, the second hydraulic rod is used for driving the first support to move horizontally, the second support is arranged on the outer support frame through a third hydraulic rod, and the third hydraulic rod is used for driving the second support to move horizontally.

[0017] Preferably, the upper flexible pressing pad and the lower flexible pressing pad are annular and are rotationally connected to the rigid support part.

[0018] Preferably, the cold die assembly further comprises a positioning rod, a positioning pressing head and a first elastic piece, the positioning rod is vertically arranged and is slidingly arranged on the rigid support part, the positioning pressing head is arranged at the lower end of the positioning rod, the first elastic piece is sleeved on the outside of the positioning rod, and the two ends of the first elastic piece are connected with the rigid support part and the positioning pressing head respectively.

[0019] Preferably, a one-way transmission assembly is connected between the positioning rod and the upper flexible pressing pad.

[0020] The one-way transmission assembly is configured to rotate the upper flexible pressing pad circumferentially when the positioning rod moves downward relative to the rigid support part.

[0021] Preferably, a linkage assembly is connected between the one-way transmission assembly and the lower flexible pressing pad.

[0022] The linkage assembly is configured to rotate the lower flexible pressing pad simultaneously when the upper flexible pressing pad rotates circumferentially.

[0023] A cold and hot setting process for shoe processing using the cold and hot setting machine for shoe processing, comprising the following steps:

[0024] First step: pre-pressing and turning up the toe material through the lower flexible pressing pad;

[0025] Second step: driving the pressing roller to roll the turning-up part of the toe material through the circumferential rotation of the intermediate flexible pressing pad;

[0026] Third step: final setting of the turning-up part of the toe material through the upper flexible pressing pad.

[0027] The beneficial effects of the present application are:

[0028] The present application sets up an intermediate flexible pressing pad, which promotes the dispersion of the material at the thicker position of the turning-up part to all around the turning-up part through the intermittent rotation of the two intermediate flexible pressing pads, thereby increasing the thickness consistency of all around the toe material, which is beneficial to make the cooling speed of all around the toe material substantially consistent during the subsequent cooling setting of the toe material, thereby making the cooling setting effect of the shoe mold assembly on the toe material better. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a whole schematic view of the cold and hot setting machine for shoe processing of the present application;

[0030] Figure 2 It is a structural schematic view of the cold mold assembly in the cold and hot setting machine for shoe processing of the present application;

[0031] Figure 3 It is a front view of Figure 2 ;

[0032] Figure 4 It is an A-A sectional view of Figure 3 ;

[0033] Figure 5 It is an exploded view of Figure 2 ;

[0034] Figure 6 This is a schematic diagram of the intermediate flexible pressing component in a cold and heat setting machine for shoe processing according to the present invention;

[0035] Figure 7 for Figure 6 Exploded view;

[0036] Figure 8 This is a schematic diagram of the structure of the intermediate flexible pressure pad in a cold and heat setting machine for shoe processing according to the present invention;

[0037] Figure 9 This is a schematic diagram of the transmission module in a cold and heat setting machine for shoe processing according to the present invention;

[0038] Figure 10 This is a schematic diagram of the internal structure of the intermediate support seat in a cold and hot setting machine for shoe processing according to the present invention;

[0039] Figure 11 This is a schematic diagram of the unidirectional transmission component in a cold and heat setting machine for shoe processing according to the present invention;

[0040] Figure 12 This is a schematic diagram of a preferred structure of the upper mounting frame in a cold and hot setting machine for shoe processing according to the present invention;

[0041] Figure 13 This is a diagram showing the location of the stitching lines.

[0042] in:

[0043] 100. Body;

[0044] 200. Thermal mold assembly;

[0045] 300. Shoe mold assembly; 310. Base; 320. Lower positioning plate; 330. First compression spring; 340. Cooling module; 350. Shoe last; 360. Second compression spring; 370. Top plate; 380. Support frame;

[0046] 400. Cold mold assembly; 410. First hydraulic rod; 420. Rigid support part; 421. Intermediate support seat; 422. Side connecting block; 423. Upper mounting bracket; 424. Lower mounting bracket; 425. Upper cover plate; 426. Lower cover plate; 430. Upper flexible pressure pad; 440. Lower flexible pressure pad; 450. Intermediate flexible pressure member; 460. Positioning rod; 470. Positioning pressure head; 480. First elastic element; 490. Guide plate;

[0047] 451. Intermediate flexible pressure pad; 452. Drive unit; 453. Support unit; 454. Pressure roller; 455. Inner support steel plate;

[0048] 4531. External support frame; 4532. First bracket; 4533. Second bracket; 4534. First gear; 4535. Second gear; 4536. Second hydraulic rod; 4537. Third hydraulic rod;

[0049] 4521, Drive motor; 4522, Transmission module; 45221, Third gear; 45222, Fourth gear; 45223, Fifth gear;

[0050] 500, One-way transmission assembly; 510, Sixth gear; 520, One-way bearing; 530, Rotating ring; 531, Helical groove; 540, Guide post; 550, Seventh gear; 560, Eighth gear;

[0051] 600. Linkage component; 610. Ninth gear; 620. Tenth gear; 630. Eleventh gear;

[0052] 710, First bolt; 720, Second bolt; 730, Third bolt;

[0053] 810. Sewing thread. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0055] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] like Figures 1 to 13 As shown, a hot and cold setting machine for shoe processing includes a machine body 100, a hot mold assembly 200, a shoe mold assembly 300, and a cold mold assembly 400. The hot mold assembly 200 is located on one side of the machine body 100 and is used for heat setting of the shoe toe fabric. The shoe mold assembly 300 and the cold mold assembly 400 are both located on the machine body 100, and the cold mold assembly 400 is vertically opposite to the shoe mold assembly 300. The cold mold assembly 400 is used for cold setting of the heat-set shoe toe fabric. The cold mold assembly 400 includes a first hydraulic rod 410, a rigid support part 420, an upper flexible pressure pad 430, a lower flexible pressure pad 440, and an intermediate flexible pressure member 450. The fixed end of the first hydraulic rod 410 is located on the machine body 100, and the telescopic end is fixedly connected to the rigid support part 420. In the initial state, the telescopic end of the first hydraulic rod 410 is at its maximum extension length, the rigid support part 420 is at its upper limit position, and the upper flexible pressure pad 430 and the lower flexible pressure member 450 are at their maximum extension length. Flexible pressure pads 440 are arranged at intervals and connected to the rigid support part 420. The shaping surfaces of the upper flexible pressure pad 430 and the lower flexible pressure pad 440 coincide in the vertical direction. The intermediate flexible pressure member 450 is disposed on the rigid support part 420 and is located between the upper flexible pressure pad 430 and the lower flexible pressure pad 440. The intermediate flexible pressure member 450 includes an intermediate flexible pressure pad 451, a driving unit 452 and a support unit 453. The support unit 453 is disposed on the rigid support part 420. There are two intermediate flexible pressure pads 451, which are rotatably connected to the support unit 453. The shaping surfaces of the two intermediate flexible pressure pads 451 are adapted to the shaping surfaces of the upper flexible pressure pad 430 and the lower flexible pressure pad 440. The driving unit 452 is disposed on the support unit 453 and is used to drive the intermediate flexible pressure pads 451 to rotate intermittently.

[0058] When shaping the toe cap, the worker first places the toe cap into the hot mold assembly 200. The heating elements (such as electric heating tubes) within the hot mold assembly 200 heat the toe cap, softening it and enhancing its plasticity for easier subsequent shaping. After the set heating time, the worker removes the toe cap from the hot mold assembly 200 and places it in a predetermined position on the shoe mold assembly 300. Next, the telescopic end of the first hydraulic rod 410 retracts. When the telescopic end of the first hydraulic rod 410 moves the rigid support part 420 downwards synchronously, the upper flexible pressure pad 430, the lower flexible pressure pad 440, and the middle flexible pressure member 450 are all connected to the rigid support part 420. Therefore, the upper flexible pressure pad 430, the lower flexible pressure pad 440, and the middle flexible pressure member 450 move downwards synchronously with the rigid support part 420. At this time, the lower flexible pressure pad 440 first comes into close contact with the toe fabric. Under the squeezing action of the lower flexible pressure pad 440 and the shoe mold assembly 300, the toe fabric is pressed down and flipped over. As the telescopic end of the hydraulic rod 410 continues to retract, the lower flexible pad 440 moves to the underside of the toe cap, and the middle flexible pad 451 moves to be in close contact with the toe cap. Because the shaped curved surface of the middle flexible pad 451 matches the shaped curved surface of the lower flexible pad 440—specifically, the shaped curved surface of the middle flexible pad 451 and the oriented curved surface of the lower flexible pad 440 coincide in the vertical direction—the middle flexible pad 451 can smoothly move to be in close contact with the toe cap without causing unnecessary compression. When the pressure pad 451 moves down to its maximum contact area with the toe fabric, the telescopic end of the first hydraulic rod 410 stops retracting. At this point, the intermediate flexible pressure pad 451 remains at its current height. Next, the drive unit 452 is activated, driving the two intermediate flexible pressure pads 451 to rotate intermittently for a preset time. It should be noted that during the intermittent rotation of the two intermediate flexible pressure pads 451, the rotation directions of the two intermediate flexible pressure pads 451 should be opposite, and they should move from the toe part to the heel part within the shaped curved surface (within...). Figure 6As shown, the left-side flexible pressure pad 451 rotates intermittently clockwise, and the right-side flexible pressure pad 451 rotates intermittently counterclockwise. Because the flexible pressure pad 451 is in close contact with the folded edge of the toe cap, there is significant friction between the flexible pressure pad 451 and the folded edge, especially at the thicker parts of the folded edge. Furthermore, because the toe cap becomes more pliable when heated, the intermittent rotation of the two flexible pressure pads 451 helps distribute material from the thicker parts of the folded edge to all areas around the folded edge, increasing the uniformity of thickness throughout the toe cap. This ensures a more consistent cooling rate throughout the toe cap during subsequent cooling and shaping, resulting in better cooling and shaping of the toe cap by the shoe mold assembly 300. After the intermittent rotation of the two flexible pressure pads 451 reaches the preset duration, the drive unit is turned off. At step 452, the two intermediate flexible pressure pads 451 stop rotating. Next, the first hydraulic rod 410 continues to move downwards until the contact area between the upper flexible pressure pad 430 and the toe fabric reaches its maximum. At this point, the toe fabric is tightly attached to the upper flexible pressure pad 430 and the shoe mold assembly 300. The cooling system then cools the shoe mold assembly 300, rapidly reducing its temperature. The heat from the toe fabric is absorbed by the shoe mold assembly 300 through heat transfer, causing the temperature of the toe fabric to drop rapidly. The softened material molecules of the toe fabric then re-solidify. Under sustained pressure, the shape of the toe fabric is gradually "locked," forming a fixed shape consistent with the shoe mold assembly 300. After cooling for the preset time, the first hydraulic rod 410 returns to its initial position. Finally, the formed toe fabric is removed from the shoe mold assembly 300. Repeating the above steps completes the shaping of the next toe fabric.

[0059] It should be noted that the upper flexible pad 430, the lower flexible pad 440, and the middle flexible pad 451 can all be made of the same silicone material as in the existing technology.

[0060] It should also be noted that the function of the lower flexible pad 440 is to pre-shape the toe fabric, while the function of the upper flexible pad 430 is to finalize the toe fabric. Therefore, the height of the lower flexible pad 440 should be less than the width of the upper flexible pad 430, while the height of the upper flexible pad 430 should be slightly greater than the width of the toe fabric's folded edge. The function of the middle flexible pad 451 is to evenly distribute the material in the folded part of the toe fabric. Therefore, it is preferable that the height of the middle flexible pad 451 is the same as the height of the upper flexible pad 430.

[0061] Furthermore, such as Figure 2As shown, the shoe mold assembly 300 includes a base 310, a lower positioning plate 320, a first compression spring 330, a cooling module 340, a shoe last 350, a second compression spring 360, an upper top plate 370, and a support frame 380. The base 310 is mounted on the machine body 100, the shoe last 350 is mounted on the base 310, and the cooling module 340 is located between the base 310 and the shoe last 350. It is used to deliver cooling water to the shoe last 350 to cool it down. The cooling module 340 can be identical to the cooling module 340 of an existing shoe toe heat and cold setting machine. The shoe last 350... A support frame 380 is provided at the front end to support the tail of the shoe toe fabric. A first compression spring 330 is sleeved outside the fixed end of the first hydraulic rod 410, and the lower end of the first compression spring 330 is fixedly connected to the base 310, and the upper end is fixedly connected to the lower positioning plate 320. The lower positioning plate 320 is slidably sleeved outside the fixed end of the first hydraulic rod 410. The lower end of the second compression spring 360 is fixedly connected to the lower positioning plate 320, and the upper end of the second compression spring 360 is fixedly connected to the upper top plate 370. A positioning block is provided on the upper top plate 370 to position the shoe toe fabric placed on it.

[0062] Furthermore, such as Figure 4 As shown, the cold mold assembly 400 also includes a positioning rod 460, a positioning pressure head 470, and a first elastic element 480. The axis of the positioning rod 460 is vertical and is slidably mounted on the rigid support part 420. A limit ring is provided at the upper end of the positioning rod 460, and the diameter of the limit ring is larger than the diameter of the positioning rod 460. The positioning pressure head 470 is located at the lower end of the positioning rod 460. The first elastic element 480 is a compression spring. The first elastic element 480 is sleeved on the outside of the positioning rod 460, and both ends of the first elastic element 480 are respectively connected to the rigid support part 420 and the positioning pressure head 470.

[0063] When the first hydraulic rod 410 moves downward, it drives the rigid support part 420 to move downward synchronously. Since the positioning rod 460 is slidably sleeved on the rigid support part 420, and the upper end of the positioning rod 460 is provided with a limiting ring with a diameter larger than that of the positioning rod 460, the positioning rod 460 moves downward synchronously with the intermediate support seat 421. When the positioning pressure head 470 indirectly abuts against the shoe last 350 through the shoe toe fabric, as the first hydraulic rod 410 continues to move downward, the positioning rod 460 and the positioning pressure head 470 move upward relative to the intermediate support seat 421. At this time, the first elastic element 480 is gradually compressed, and the positioning pressure head 470 and the shoe last... The positive pressure between 350 increases, thereby clamping the middle part of the toe fabric between the positioning head 470 and the last 350, preventing the toe fabric from shifting and achieving the effect of positioning the toe fabric. At the same time, the rigid support part 420 pushes the upper plate 370 downward, causing the upper plate 370 to move downward, and the side of the last 350 is gradually exposed. At the same time, the second compression spring 360 and the first compression spring 330 are compressed simultaneously. As the upper plate 370 continues to move upward, the lower positioning plate 320 also moves downward until the lower positioning plate 320 moves downward to the lower limit position. At this time, the side of the last 350 is fully exposed and fits against the folded part of the toe fabric.

[0064] In a further embodiment, such as Figures 6 to 8 As shown, the intermediate flexible pressing element 450 also includes pressing rollers 454. There are multiple pressing rollers 454, which are equally spaced along the outer side of the intermediate flexible pressing pad 451 and rotatably connected to the intermediate flexible pressing pad 451. Specifically, an installation groove is provided at the upper end of the intermediate flexible pressing pad 451. The portion of the installation groove less than half of its circumference extends to the outer side of the intermediate flexible pressing pad 451. The pressing rollers 454 are rotatably connected in the installation groove. In addition, in this embodiment, it should be ensured that the shaping surfaces of the two intermediate flexible pressing pads 451 are offset to the left and right sides by 1-2 mm respectively compared to the shaping surfaces of the upper flexible pressing pad 430 and the lower flexible pressing pad 440. At the same time, it should be ensured that the pressing rollers 454 located in the shaping area of ​​the intermediate flexible pressing pad 451 are tangent to the shaping surfaces of the upper flexible pressing pad 430 and the lower flexible pressing pad 440.

[0065] Understandably, during the circumferential rotation of the intermediate flexible pad 451, the pressure roller 454 revolves with the intermediate flexible pad 451. At the same time, since the pressure roller 454 is also in close contact with the toe fabric, it also rotates around its own axis under the action of friction. At this time, the pressure of the pressure roller 454 on the toe fabric is gradually transmitted with the rotation of the pressure roller 454, which can conform to the slight undulations of the toe fabric and press the uneven parts of the toe fabric point by point, effectively reducing stress concentration and making the thickness of the toe fabric more uniform.

[0066] In a further embodiment, such asFigure 6 and Figure 7 As shown, the support unit 453 includes an outer support frame 4531, a first bracket 4532, a second bracket 4533, a first gear 4534, and a second gear 4535. The outer support frame 4531 is fixedly connected to the rigid support part 420. There are two first brackets 4532 and two second brackets 4533. Both the first brackets 4532 and the second brackets 4533 are U-shaped, with their openings facing the central flexible pressure pad 451. The spacing between the openings is adapted to the height of the central flexible pressure pad 451, and they are used to support the two ends of the central flexible pressure pad 451. The two first brackets 4532 are respectively located at both ends of the outer support frame 4531. Two second supports 4533 are spaced apart on the outer support frame 4531 and located between the two first supports 4532. The first gear 4534 is rotatably mounted on the first support 4532 and meshes with the inner side of one end of the intermediate flexible pressure pad 451. The second gear 4535 is rotatably mounted on the second support 4533 and meshes with the inner side of the other end of the intermediate flexible pressure pad 451. Specifically, a number of toothed grooves are equally spaced on the inner side of the intermediate flexible pressure pad 451, and both the first gear 4534 and the second gear 4535 mesh with the toothed grooves on the inner side of the intermediate flexible pressure pad 451.

[0067] When it is necessary for the intermediate flexible pad 451 to rotate circumferentially, the first gear 4534 can be rotated. At this time, the first gear 4534 can drive the intermediate flexible pad 451 to rotate through gear meshing.

[0068] Furthermore, in order to support the inner side of the intermediate flexible pressure pad 451, an inner support steel plate 455 is installed on the inner side of the intermediate flexible pressure pad 451. The inner support steel plate 455 is in contact with the inner side of the intermediate flexible pressure pad 451. In order to limit the support of the inner support steel plate 455, the width of the first bracket 4532 and the second bracket 4533 is greater than the width of the inner support steel plate 455. In this way, the first bracket 4532 and the second bracket 4533 can lift the two ends of the inner support steel plate 455, thereby achieving the limiting support of the inner support steel plate 455.

[0069] Furthermore, in order to fix the outer support frame 4531 to the rigid support part 420, first threaded holes are provided at both ends of the outer support frame 4531, with the axis of the threaded holes being vertical. Correspondingly, second threaded holes are provided on the rigid support part 420. The third bolt 730 (simplified in the attached figure) is screwed into the first threaded hole and the second threaded hole from bottom to top, thereby fixing the outer support frame 4531 and the rigid support part 420 together.

[0070] In a further embodiment, such as Figures 6 to 9As shown, the drive unit 452 includes a drive motor 4521 and a transmission module 4522. The drive motor 4521 is mounted on the first bracket 4532, and the transmission module 4522 is connected between the output shaft of the drive motor 4521 and the first gear 4534.

[0071] When it is necessary to rotate the intermediate flexible pad 451 circumferentially, the drive motor 4521 is started. At this time, the output shaft of the drive motor 4521 drives the first gear 4534 to rotate through the transmission module 4522. The first gear 4534 drives the intermediate flexible pad 451 to rotate, thus making the intermediate flexible pad 451 rotate circumferentially.

[0072] Furthermore, such as Figure 9 As shown, the transmission module 4522 includes a third gear 45221, a fourth gear 45222, and a fifth gear 45223. The third gear 45221 is coaxially and fixedly connected to the output shaft of the drive motor 4521. The fourth gear 45222 meshes with the third gear 45221 and is rotatably connected to the upper end of the first bracket 4532. The fifth gear 45223 is coaxially and fixedly connected to the first gear 4534 and meshes with the fourth gear 45222.

[0073] In a further embodiment, such as Figure 6 and Figure 7 As shown, the first bracket 4532 is mounted on the outer support frame 4531 via the second hydraulic rod 4536. Specifically, the fixed end of the second hydraulic rod 4536 is mounted on the outer support frame 4531, and the telescopic end of the second hydraulic rod 4536 is mounted on the first bracket 4532. The second hydraulic rod 4536 is used to drive the first bracket 4532 to move horizontally. The second bracket 4533 is mounted on the outer support frame 4531 via the third hydraulic rod 4537. Specifically, the fixed end of the third hydraulic rod 4537 is mounted on the outer support frame 4531, and the telescopic end of the third hydraulic rod 4537 is mounted on the second bracket 4533. The third hydraulic rod 4537 is used to drive the second bracket 4533 to move horizontally.

[0074] When the toe fabric's folded edge needs to be rolled by the pressure roller 454, the extension and retraction of the second hydraulic rod 4536 and the third hydraulic rod 4537 are controlled so that the pressure roller 454 in the shaping area of ​​the middle flexible pressure pad 451 is tangent to the shaping curved surfaces of the upper flexible pressure pad 430 and the lower flexible pressure pad 440. After the toe fabric has cooled for a preset time, the extension and retraction ends of the second hydraulic rod 4536 and the third hydraulic rod 4537 are extended outward by a certain amount, about 1-2 mm. At this time, the pressure roller 454 is located below the folded edge of the toe fabric. Then, when the first hydraulic rod 410 returns to its original position, the first hydraulic rod 410... The rigid support part 420 drives the upper flexible pressure pad 430, the lower flexible pressure pad 440 and the middle flexible pressure piece 450 to move upward synchronously. The pressure roller 454 can drag the shoe toe fabric upward a certain distance, thereby assisting the shoe toe fabric to separate from the shoe mold assembly 300, achieving the purpose of assisting demolding. After the first hydraulic rod 410 is reset, the second hydraulic rod 4536 and the third hydraulic rod 4537 are reset, so that the pressure roller 454 in the shaping area of ​​the middle flexible pressure pad 451 is tangent to the shaping curved surface of the upper flexible pressure pad 430 and the lower flexible pressure pad 440, so as to shape the next shoe toe fabric.

[0075] It is understandable that, such as Figure 13 As shown, most shoe types, such as athletic shoes and outdoor shoes, have stitched seams 810 on their uppers. The areas with stitched seams 810 protrude further than other areas, resulting in significant deformation at the points where the upper flexible pad 430 and lower flexible pad 440 contact the stitched seams 810. Over time, this can easily lead to fatigue damage in these areas of the upper flexible pad 430 and lower flexible pad 440. During the shaping process, insufficient bonding pressure between the toe fabric near the stitched seams 810 and the shoe mold assembly 300 can easily cause shaping defects in this area. To solve this problem, in a further embodiment, such as... Figure 4 and Figure 5As shown, both the upper flexible pressure pad 430 and the lower flexible pressure pad 440 are annular and rotatably connected to the rigid support part 420. Specifically, the rigid support part 420 includes an intermediate support base 421, a side connecting block 422, an upper mounting bracket 423, and a lower mounting bracket 424. The intermediate support base 421 is fixedly connected to the side connecting block 422, the side connecting block 422 is fixedly connected to the upper mounting bracket 423 by a first bolt 710, and the upper mounting bracket 423 and the lower mounting bracket 424 are fixedly connected by a second bolt 720. The upper flexible pressure pad 430 and the lower flexible pressure pad 440 are fixedly connected with steel strips. The shape of the steel strips is adapted to the shape of the upper flexible pressure pad 430 and the lower flexible pressure pad 440. The outer surface of the steel strips is provided with toothed grooves. The width of the steel strips is smaller than the width of the corresponding upper flexible pressure pad 430 and lower flexible pressure pad 440. The inner side surfaces of the upper mounting bracket 423 and the lower mounting bracket 424 are provided with U-shaped through grooves for supporting the steel strips. The steel strips are rotatably connected in the corresponding U-shaped through grooves.

[0076] After the toe cap material is shaped, the workers rotate the upper flexible pad 430 and the lower flexible pad 440 for a preset time. This way, when shaping the next toe cap material, the parts of the upper flexible pad 430 and the lower flexible pad 440 that were in contact with the stitching 810 of the previous toe cap material will no longer be in contact with the stitching 810 of the current toe cap material. This avoids excessive pressure on local areas of the upper flexible pad 430 and the lower flexible pad 440 for a long time, which could lead to fatigue damage.

[0077] Furthermore, such as Figure 12 As shown, in order to guide and limit the portion of the upper flexible pad 430 protruding from the intermediate support 421, two guide plates 490, which are adapted to the shape of the protruding portion, can be provided at the front end of the upper mounting frame 423. Similarly, in order to guide and limit the portion of the lower flexible pad 440 protruding from the intermediate support 421, two guide plates 490, which are adapted to the shape of the protruding portion, can be provided at the front end of the lower mounting frame 424.

[0078] Furthermore, the front of the upper flexible pad 430 and the lower flexible pad 440 are expanded to prevent the upper flexible pad 430 and the lower flexible pad 440 from interfering with the support frame 380.

[0079] In a further embodiment, such as Figure 4 and Figure 5 As shown, a one-way transmission assembly 500 is connected between the positioning rod 460 and the upper flexible pressure pad 430. The one-way transmission assembly 500 is configured to cause the upper flexible pressure pad 430 to rotate circumferentially when the positioning rod 460 moves downward relative to the rigid support part 420.

[0080] When the positioning rod 460 moves downward relative to the rigid support part 420, the upper flexible pressure pad 430 rotates circumferentially through the one-way transmission component 500. This causes the upper flexible pressure pad 430 to rotate for a preset time. When shaping the next toe fabric, the parts of the upper flexible pressure pad 430 and the lower flexible pressure pad 440 that were in contact with the stitching of the previous toe fabric will no longer be in contact with the stitching of the current toe fabric. This can prevent the upper flexible pressure pad 430 and the lower flexible pressure pad 440 from being subjected to excessive pressure for a long time and thus fatigue damage.

[0081] Furthermore, such as Figure 4 , Figure 5 and Figure 11 As shown, the one-way transmission assembly 500 includes a sixth gear 510, a one-way bearing 520, a rotating ring 530, a guide post 540, a seventh gear 550, and an eighth gear 560. A spiral groove 531 is formed on the inner circumferential surface of the rotating ring 530. The upper and lower ends of the spiral groove 531 are flared to facilitate the guide post 540 moving into or out of the spiral groove 531. The guide post 540 is fixedly connected to the positioning rod 460, and the guide post 540 is helically engaged with the spiral groove 531. The one-way bearing 520 is disposed between the sixth gear 510 and the rotating ring 530. The one-way bearing 520 is configured such that the positioning rod 460 moves downward relative to the rigid support portion 420. When in motion, the inner and outer rings of the one-way bearing 520 rotate synchronously. At this time, the rotating ring 530 drives the sixth gear 510 to rotate synchronously through the one-way bearing 520. Conversely, when the positioning rod 460 moves upward relative to the rigid support part 420, the inner and outer rings of the one-way bearing 520 rotate relative to each other. At this time, the rotating ring 530 rotates relative to the sixth gear 510, and the seventh gear 550 meshes with the sixth gear 510. The seventh gear 550 is rotatably connected in the upper mounting bracket 423. The seventh gear 550 is coaxially fixedly connected with the eighth gear 560 and located in the upper mounting bracket 423. The eighth gear 560 meshes with the tooth groove on the inner side of the steel strip corresponding to the upper flexible pressure pad 430.

[0082] During the resetting process of the first hydraulic rod 410, the positioning rod 460 moves downward relative to the rigid support part 420. When the positioning rod 460 moves downward relative to the rigid support part 420 until the guide post 540 is located inside the spiral groove 531, as the positioning rod 460 continues to move downward relative to the rigid support part 420, under the spiral cooperation of the guide post 540 and the spiral groove 531, the rotating ring 530 rotates circumferentially. At this time, the inner and outer rings of the one-way bearing 520 rotate synchronously. The rotating ring 530 drives the sixth gear 510 to rotate synchronously through the one-way bearing 520. The sixth gear 510 drives the seventh gear 550 to rotate synchronously. Since the seventh gear 550 and the eighth gear 560 are coaxially fixedly connected, the eighth gear 560 rotates synchronously. Thus, the eighth gear 560 drives the upper flexible pressure pad 430 to rotate circumferentially through the tooth groove on the inner side of the steel strip corresponding to the upper flexible pressure pad 430.

[0083] Furthermore, to prevent the axis of the rotating ring 530 from shifting, a cover plate is fixedly installed on the top of the intermediate support 421, and the upper end face of the rotating ring 530 is in rotatable contact with the lower surface of the cover plate. In addition, an upper cover plate 425 is fixedly installed on the top of the upper mounting frame 423 to protect the eighth gear 560 inside the upper mounting frame 423, and a lower cover plate 426 is fixedly installed on the top of the lower mounting frame 424 to protect the eleventh gear 630 and the tenth gear 620 installed inside the lower mounting frame 424.

[0084] Furthermore, to prevent the positioning rod 460 from rotating circumferentially, multiple limiting straight grooves are provided in the circumference of the positioning rod 460. The limiting straight grooves extend along the axis of the positioning rod 460. Multiple limiting strips are correspondingly provided on the inner circumferential wall of the mounting hole for mounting the positioning rod 460 on the intermediate support 421. The limiting strips are slidably connected in the limiting straight grooves.

[0085] In a further embodiment, such as Figure 4 and Figure 5 As shown, a linkage component 600 is connected between the unidirectional transmission component 500 and the lower flexible pressure pad 440. The linkage component 600 is configured such that when the upper flexible pressure pad 430 rotates circumferentially, the lower flexible pressure pad 440 rotates simultaneously.

[0086] The linkage component 600 is set so that when the upper flexible pad 430 rotates circumferentially, the lower flexible pad 440 can rotate simultaneously, thereby adjusting the part of the lower flexible pad 440 that contacts the sewing line.

[0087] Furthermore, such as Figure 4 and Figure 5As shown, the linkage assembly 600 includes a ninth gear 610, a tenth gear 620, and an eleventh gear 630. The ninth gear 610 and the tenth gear 620 are coaxially fixedly connected. The ninth gear 610 is located in the upper mounting bracket 423 and meshes with the eighth gear 560. The tenth gear 620 is rotatably connected in the lower mounting bracket 424. The eleventh gear 630 is rotatably connected in the lower mounting bracket 424, and one side of the eleventh gear 630 meshes with the tenth gear 620, while the other side meshes with the tooth groove on the inner side of the steel strip corresponding to the lower flexible pressure pad 440.

[0088] When the eighth gear 560 rotates, the eighth gear 560 drives the ninth gear 610 to rotate synchronously, the ninth gear 610 drives the tenth gear 620 to rotate synchronously, the tenth gear 620 drives the eleventh gear 630 to rotate synchronously, and the eleventh gear 630 drives the lower flexible pressure pad 440 to rotate synchronously through the tooth groove on the inner side of the steel strip corresponding to the lower flexible pressure pad 440.

[0089] In other embodiments, motors may be separately installed in the upper mounting bracket 423 and the lower mounting bracket 424, and gears may be installed on the output shaft of the motors so that the gears mesh with the tooth grooves on the inner side surfaces of the steel strips corresponding to the upper flexible pad 430 and the lower flexible pad 440.

[0090] A cold and heat setting process for shoe manufacturing, using the aforementioned cold and heat setting machine for shoe manufacturing, specifically includes the following steps:

[0091] Step 1: Pre-press and shape the toe fabric by using a flexible pressure pad 440;

[0092] Step 2: The circumferential rotation of the intermediate flexible pad 451 drives the pressure roller 454 to roll the edge of the toe fabric.

[0093] Step 3: Use the upper flexible pad 430 to finalize the shape of the turned-up edge of the toe fabric.

[0094] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0095] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A cold and heat setting machine for shoe processing, characterized in that, include: Organism; The heat mold assembly, located on one side of the machine body, is used for heat setting of the shoe toe fabric; The shoe mold assembly is located on the machine body; The cold mold assembly is located on the machine body and is positioned opposite the shoe mold assembly. The cold mold assembly is used to cold-set the heat-set shoe toe fabric. The cold mold assembly includes a first hydraulic rod, a rigid support, an upper flexible pad, a lower flexible pad, and an intermediate flexible pressing member. The fixed end of the first hydraulic rod is located on the machine body, and the telescopic end is fixedly connected to the rigid support. The upper and lower flexible pads are arranged at intervals and connected to the rigid support. The shaping surfaces of the upper and lower flexible pads coincide in the vertical direction. The intermediate flexible pressing member is located on the rigid support and is situated between the upper and lower flexible pads. The intermediate flexible pressure component includes an intermediate flexible pressure pad, a driving unit, and a support unit. The support unit is mounted on the rigid support part. There are two intermediate flexible pressure pads, which are rotatably connected to the support unit. The shaped curved surfaces of the two intermediate flexible pressure pads are adapted to the shaped curved surfaces of the upper and lower flexible pressure pads. The driving unit is mounted on the support unit and is used to drive the intermediate flexible pressure pads to rotate intermittently.

2. The cold and heat setting machine for shoe processing according to claim 1, characterized in that, The intermediate flexible pressure component also includes multiple pressure rollers, which are arranged at intervals along the outer side of the intermediate flexible pressure pad and are rotatably connected to the intermediate flexible pressure pad.

3. The cold and heat setting machine for shoe processing according to claim 2, characterized in that, The support unit includes an outer support frame, a first bracket, a second bracket, a first gear, and a second gear. The outer support frame is fixedly connected to the rigid support part. There are two first brackets and two second brackets. The two first brackets are respectively located at both ends of the outer support frame. The two second brackets are spaced apart on the outer support frame and located between the two first brackets. The first gear is rotatably mounted on the first bracket and meshes with the inner side of one end of the intermediate flexible pressure pad. The second gear is rotatably mounted on the second bracket and meshes with the inner side of the other end of the intermediate flexible pressure pad.

4. A cold and heat setting machine for shoe processing according to claim 2, characterized in that, The drive unit includes a drive motor and a transmission module. The drive motor is mounted on the first bracket, and the transmission module is connected between the output shaft of the drive motor and the first gear.

5. A cold and heat setting machine for shoe processing according to claim 3, characterized in that, The first support is mounted on the outer support frame via a second hydraulic rod, which is used to drive the first support to move horizontally. The second support is mounted on the outer support frame via a third hydraulic rod, which is also used to drive the second support to move horizontally.

6. A cold and heat setting machine for shoe processing according to claim 1, characterized in that, Both the upper and lower flexible pads are annular and rotatably connected to the rigid support.

7. A cold and heat setting machine for shoe processing according to claim 6, characterized in that, The cold mold assembly also includes a positioning rod, a positioning pressure head, and a first elastic element. The axis of the positioning rod is vertical and it is slidably mounted on the rigid support. The positioning pressure head is located at the lower end of the positioning rod. The first elastic element is sleeved on the outside of the positioning rod, and both ends of the first elastic element are connected to the rigid support and the positioning pressure head, respectively.

8. A cold and heat setting machine for shoe processing according to claim 7, characterized in that, A one-way transmission assembly is connected between the positioning rod and the upper flexible pressure pad; The one-way drive assembly is configured such that when the positioning rod moves downward relative to the rigid support, the upper flexible pressure pad rotates circumferentially.

9. A cold and heat setting machine for shoe processing according to claim 8, characterized in that, A linkage component is connected between the unidirectional transmission component and the lower flexible pressure pad. The linkage component is configured such that when the upper flexible pad rotates circumferentially, the lower flexible pad rotates simultaneously.

10. A cold and heat setting process for shoe manufacturing, characterized in that, The use of the cold and heat setting machine for shoe processing according to any one of claims 1-9 includes the following steps: Step 1: Pre-press and shape the toe cap material by applying a flexible pressure pad; Step 2: The circumferential rotation of the intermediate flexible pad drives the pressure roller to roll the folded edge of the toe fabric. Step 3: Use a flexible pad to finalize the shape of the turned-up edge of the toe fabric.

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