Production process of an anti-fouling and wear-resistant popcorn sole

Abstract

The present invention discloses a production process for an anti-fouling and wear-resistant popcorn sole, which has a molding step and also includes a film placing step, a film sucking step, a film cutting step, and a patch attaching step. The film placing step, the film sucking step, the molding step, the film cutting step, and the patch attaching step are sequentially operated in order. In the production process for an anti-fouling and wear-resistant popcorn sole of the present invention, the film sheet for anti-fouling is in a sheet structure, and the film placing is operated outside the molding machine. In this way, when the molding machine is working, workers can separately place the film for the female mold without interference, and the molding efficiency is not affected by the film placing. Moreover, the film placing operation is simple and does not adopt an online form. The entire molding machine does not need to be modified, and only the original female mold needs to be replaced, so that the entire molding machine can adapt to the production of popcorn soles with and without films, with high versatility, and the use of wear-resistant patches makes the entire popcorn sole have a better wear-resistant effect.

Description

Technical Field

[0001] The present invention relates to the technical field of sole production, and particularly relates to a production process of a stain-resistant and wear-resistant popcorn sole. Background Technique

[0002] The existing forming process of popcorn soles is that the upper mold and the lower mold are closed. After closing the mold, the material flows from the upper mold into the mold cavity, and then the popcorn sole is formed under a certain temperature and a certain pressure. Such popcorn soles have the advantages of light weight and good elasticity and are widely used in sports shoes. However, popcorn soles are not stain-resistant. Once they get dirty, they are very difficult to clean and cannot be worn for a long time. To overcome this problem, a stain-resistant popcorn sole with a thin film covered on the outer surface has emerged on the market. For example, a film-coated integrated molding machine and molding process suitable for popcorn soles with Chinese invention patent publication number CN119348060A. The process is as follows: S1. The output roller and the recovery roller cooperate to convey the film material, so that the film material is between the concave mold and the convex mold, and the projection of the film material in the direction of the concave mold covers the cavity, and the film material stops conveying; S2. The first bracket and the second bracket move closer, until the convex mold approaches the film material, and the steam generator injects steam into the steam cavity of the convex mold. The steam blows out towards the film material through the corresponding second air holes, and the film material is heated and softened; S3. The positive and negative pressure generator evacuates the air pressure cavity of the concave mold to make the air pressure cavity in a negative pressure state. The first air hole generates negative pressure suction, and the film material is sucked into the cavity. And because the film material is heated and softened and has ductility, the film material sucked into the cavity deforms and evenly adheres to the inner wall of the cavity; S4. The first bracket and the second bracket move closer, until the convex mold closes the cavity, and popcorn particles are injected and filled into the cavity through the injection port; The steam generator injects steam into the steam cavity of the convex mold. The steam enters the cavity through the corresponding second air holes of the steam cavity, and then is discharged through the corresponding second air holes of the exhaust cavity. The passing steam heats the popcorn particles and makes their surfaces sticky; S5. The first bracket and the second bracket move closer, until the convex mold and the concave mold are combined and pressed tightly. During this process, the cutter is placed in the cutting groove to cut the film material, and the film material in the cavity is cut into independent pieces; The insert block squeezes towards the cavity, and the popcorn particles are squeezed and adhered to each other to form a sole blank, and the film material is adhered and covered on the bottom and side surfaces of the sole blank; S6. The first bracket and the second bracket move away from each other, until there is a discharge gap between the convex mold and the concave mold. The positive and negative pressure generator injects positive pressure into the air pressure cavity, and the first air hole generates a thrust to push the sole blank out of the cavity. The sole blank falls out through the discharge gap; S7. The output roller and the recovery roller cooperate to rotate, and the cut part of the film material is wound into the recovery roller. Return to step one and repeat the next round to start the sole forming process. However, in this forming process, the online cutting of the thin film prolongs the entire injection molding process, is time-consuming, and reduces the molding efficiency. Moreover, the online cutting operation of the thin film makes the thin film can only use ordinary non-sticky thin films, which makes the thin film easy to separate from the sole after molding. At the same time, the online cutting operation will cause a large change in the entire injection mold, and can only be used for the molding of film-covered popcorn soles, and cannot be used for the molding of non-film-covered popcorn, so the versatility is small. Summary of the Invention

[0003] The object of the present invention is to provide a production process for an anti-fouling and wear-resistant popcorn sole to solve the problems of low forming efficiency, large changes in injection molds, and small versatility in existing forming processes.

[0004] To achieve the object, the present invention adopts the following technical solution:

[0005] A production process for an anti-fouling and wear-resistant popcorn sole has a forming step. In the forming step, there is a forming machine for forming the sole. The forming machine has a mold frame and a mold within the mold frame. The mold frame has an upper mold frame and a lower mold frame. The mold has a convex mold and a concave mold. The convex mold is installed on the upper mold frame, and the concave mold is installed on the lower mold frame. The concave mold has a cavity. It also includes a film placing step, a film sucking step, a film cutting step, and a patch pasting step. The concave mold includes an upper concave mold and a lower concave mold. The upper concave mold has an upper cavity penetrating through from top to bottom. The lower concave mold has a lower cavity with an open top and a closed bottom. The lower concave mold is detachably installed on the lower mold frame. The upper cavity and the lower cavity form the cavity. A number of suction holes are arranged on the bottom of the lower cavity. The suction holes are connected to the outside of the lower concave mold through a ventilation structure. The lower concave mold and the upper concave mold are stacked and fitted together. And there is a fastening structure on the upper concave mold and the lower concave mold that are tightly fastened and connected together. And there is an airtight structure with a sealing fit on the stacked surface where the upper concave mold and the lower concave mold are stacked.

[0006] The film placing step, the film sucking step, the forming step, the film cutting step, and the patch pasting step are operated in sequence.

[0007] In the film placing step, the concave mold is removed from the lower mold frame. First, the lower concave mold and the upper concave mold are separated. Then, an easily wiped and light-transmitting protective film is placed on the lower concave mold. Finally, the upper concave mold is stacked on the lower concave mold and fastened together through the fastening structure to complete the film placing step.

[0008] In the film sucking step, compressed air is injected into each suction hole of the concave mold inside the lower mold frame or outside the forming machine for vacuum pumping. The easily wiped and light-transmitting protective film is attached to the lower bottom surface and the inner side wall of the lower cavity under the vacuum suction of the suction holes to complete the film sucking step.

[0009] In the forming step, the forming temperature of the mold is 100 - 180 °C. After forming, a formed sole with a film is obtained, and the upper edge of the film is higher than the upper edge of the formed sole.

[0010] In the film cutting step, the part of the film that is higher than the upper edge of the formed sole is cut to obtain a sole with a trimmed film.

[0011] In the patch pasting step, a wear-resistant bottom film is pasted on the bottom surface of the sole with a trimmed film. And the wear-resistant bottom film has an extension tongue that extends upward and is higher than the upper edge of the sole with a trimmed film at the front end corresponding to the sole with a trimmed film. After pasting the patch, an anti-fouling popcorn sole is obtained.

[0012] The above-mentioned easily erasable and light-transmitting protective film is a TPU film with a thickness of 10 - 50 filaments. The length of the above-mentioned easily erasable and light-transmitting protective film is 40 - 90 cm, and the width is 5 - 10 cm.

[0013] The temperature resistance of the above-mentioned easily erasable and light-transmitting protective film is 100 - 180 °C.

[0014] In the above-mentioned film suction step, the female die is subjected to vacuum pumping treatment outside the molding machine. And a vacuum chamber is provided below the lower cavity in the lower female die. Each air suction hole is within the range of the vacuum chamber. A vacuum suction pipe communicating with the vacuum chamber is installed on the outer side wall of the lower female die.

[0015] In the above-mentioned film suction step, the female die is subjected to vacuum pumping treatment within the lower die frame. Air suction channels with their upper ends communicating with the air suction holes and their lower ends directly leading to the outside of the bottom surface of the lower female die are provided corresponding to each air suction hole in the lower female die. A placement platform for placing the female die on it and above the bottom surface of the lower die frame is provided within the lower die frame. An air flow channel is provided between the placement platform and the side wall of the lower die frame. And through holes are provided in the placement platform within the range of the lower cavity.

[0016] Closed annular grooves are concavely provided on the lower bottom surface of the above-mentioned upper female die and the upper surface of the lower female die. Closed annular sealing gaskets protruding outside the closed annular grooves are embedded in the closed annular grooves. The closed annular groove and the closed annular sealing gasket constitute the airtight structure.

[0017] Upper positioning blocks are convexly provided on the outer side wall of the above-mentioned upper female die. Positioning columns extend downward from the top surface of the upper positioning blocks. Lower positioning blocks are correspondingly convexly provided on the outer side wall of the lower female die corresponding to the upper positioning blocks. A positioning notch penetrating up and down and for the positioning column to extend into is concavely provided on the outer side wall of the lower positioning block.

[0018] Fastening members are provided on the outer side wall of the above-mentioned lower female die. The fastening member has a mounting piece, a pressing rod, and a fastening rod. The mounting piece is adhesively locked and cooperated with the outer side wall of the lower female die. A wing plate extending towards the mounting piece is provided at the first end of the pressing rod. The mounting piece and the wing plate are movably hinged together through a pin shaft. The fastening rod has a cross bar and two side bars. The two ends of the cross bar are correspondingly connected to one end of the two side bars and integrally formed. The cross bar is located on the pressing rod. The wing plate is between the two side bars. And the wing plate and the two side bars are movably hinged together through a pin shaft. Fastening seats for the cross bar to be pressed on are correspondingly locked on the outer side wall of the upper female die corresponding to each fastening member. The fastening member and the fastening seat constitute the fastening structure.

[0019] In the film placement step, one side of the easily erasable and light-transmitting protective film has a release paper. When placing the easily erasable and light-transmitting protective film on the lower female die, the release paper is set upwards. After placement, the release paper is torn off and then the upper female die is placed on the lower female die.

[0020] The production process of an anti - pollution and wear - resistant popcorn sole of the present invention. The film used for anti - pollution is in a sheet structure, and the film is placed outside the molding machine. In this way, when the molding machine is working, workers can separately place the film on the female mold without interference. The molding efficiency is not affected by film placement, and the film - placing operation is simple. It does not adopt an online form. The entire molding machine does not need to be modified, only the original female mold needs to be replaced, so that the entire molding machine can adapt to the production of popcorn soles with and without film, with high versatility. And wear - resistant patches are used to make the entire popcorn sole have better wear - resistance effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three - dimensional view of the female mold;

[0022] Figure 2 is a three - dimensional view of the upper female mold;

[0023] Figure 3 is a three - dimensional view of the lower female mold;

[0024] Figure 4 is a three - dimensional view of another structure of the lower female mold. DETAILED DESCRIPTION OF THE INVENTION

[0025] In order to further explain the technical solution of the present invention, it will be elaborated in detail below with reference to the accompanying drawings.

[0026] The production process of an anti - pollution and wear - resistant popcorn sole of the present invention has a molding step. In the molding step, there is a molding machine for molding the sole. The molding machine has a mold frame (not shown in the figure) and a mold inside the mold frame. The mold frame has an upper mold frame and a lower mold frame. The mold has a male mold and a female mold 1. The male mold is installed on the upper mold frame, and the female mold is installed on the lower mold frame. The female mold has a cavity, and there are air holes on the side wall of the cavity. The principle of the molding machine of the present invention is the same as that of the existing traditional molding machine for popcorn soles, and will not be repeated here. And the structures of the mold frame and the male mold in the molding machine are all prior arts and are not the improvement points of the present invention.

[0027] The production process of an anti - pollution and wear - resistant popcorn sole of the present invention further includes a film - placing step, a film - sucking step, a film - cutting step and a patch - attaching step. Among them, the female mold used by the mold is different from the female mold of the existing molding machine. Specifically, as Figures 1-3As shown, the female die 1 has an upper female die 11 and a lower female die 12. The upper female die 11 has an upper cavity 100 that penetrates up and down, and the lower female die 12 has a lower cavity 200 with an open top surface. The upper cavity 100 and the lower cavity 200 form the cavity. A number of suction holes 201 are arranged on the bottom of the lower cavity 200, and the suction holes 201 are connected to the outside of the lower female die 12 through a ventilation structure. The upper female die 11 and the lower female die 12 are stacked and fitted up and down. The upper female die 11 and the lower female die 12 are provided with a fastening structure that is fastened and connected to each other, and an airtight structure with a sealed fit is provided on the stacked surface where the upper female die 11 and the lower female die 12 are stacked.

[0028] Specifically, a closed annular groove (not shown in the figure) is concavely provided on the lower bottom surface of the upper female die 11 outside the upper cavity 100. A first closed annular sealing gasket 2 with its lower part protruding outside the closed annular groove is embedded in this closed annular groove. A closed annular groove (not shown in the figure) is concavely provided on the upper surface of the lower female die 12 outside the lower cavity 200. A second closed annular sealing gasket 3 protruding outside the closed annular groove is embedded in this closed annular groove. The two closed annular grooves, the first closed annular sealing gasket, and the second closed annular sealing gasket 3 form the airtight structure. During application, the first closed annular sealing gasket and the second closed annular sealing gasket 3 make the upper female die 11 and the lower female die 12 fit tightly when stacked up and down.

[0029] Taking the length direction of the lower female die 12 as the front-back direction, two fastening members arranged at intervals front and back are locked on each of the left and right outer side walls of the lower female die 12. The fastening member has a mounting piece 41, a pressing rod 42, and a fastening rod 43. Preferably, there are two mounting pieces 41, and the two mounting pieces 41 are arranged front and back. The mounting piece 41 is locked to the lower female die 12. Specifically, the mounting piece 41 has a horizontal part and a vertical part perpendicular to the horizontal part. The horizontal part is attached to the outer side wall of the lower female die 12 and is locked together by screws. The vertical part extends in the direction away from the lower female die 12. The vertical parts of the two mounting pieces 41 are attached to each other front and back. Two wing plates 421 that extend into the vertical part and are spaced relatively front and back are provided at the first end of the pressing rod 42. The two vertical parts are between the two wing plates 421, and the two vertical parts and the two wing plates 421 are movably hinged together by a pin shaft. Through this pin shaft, the pressing rod 42 can rotate up and down relative to the mounting piece 41. The fastening rod 43 has a cross bar and two side bars. The two ends of the cross bar are correspondingly connected to one end of the two side bars and are integrally formed. The cross bar is on the second end of the pressing rod 42. The two wing plates 421 are between the two side bars, and the two wing plates 421 and the two side bars are movably hinged together by a pin shaft. On the left and right outer side walls of the upper female die 11, fastening seats 5 are locked correspondingly at positions corresponding to each fastening member. The fastening seat 5 has a back plate and side wing plates. There are two side wing plates. The back plate is attached to the outer side wall of the upper female die 11. The two side wing plates are arranged front and back relatively, and a horizontal section for the cross bar to press on is provided at the end of the two side wing plates facing away from the upper female die 11. The fastening member and the fastening seat 5 form the fastening structure.

[0030] The film placing step, film sucking step, forming step, film cutting step and patch pasting step are sequentially operated in order; in the film placing step, first, the entire female mold is disassembled from the lower mold frame, the upper female mold is separated from the lower female mold, then a piece of easily wiped and light-transmitting protective film is prepared. One side of this easily wiped and light-transmitting protective film has a release paper. The easily wiped and light-transmitting protective film is placed on the top surface of the lower female mold 12, and the release paper is set upward. Then the release paper is torn off. After that, the upper female mold 11 is stacked on the lower female mold 12. The pressing rod 42 is lifted upward, and the buckling rod 43 is correspondingly lifted upward. Then the buckling rod 43 is lifted upward so that the cross bar of the buckling rod 43 is above the horizontal section of the buckling seat 5. Finally, the pressing rod 42 is pressed downward. The downward pressing of the pressing rod 42 pulls the buckling rod 43 to move downward. At this time, the cross bar of the buckling rod 43 is pressed tightly on the horizontal section of the buckling seat 5 and cannot move downward with the downward movement of the pressing rod 42. The buckling rod 43 is buckled with the buckling seat, and the upper female mold 11 is buckled with the lower female mold 12, and sealed cooperation is achieved by using a closed annular sealing ring, thus completing the film placing step. In the present invention, the easily wiped and light-transmitting protective film is preferably a TPU film with a thickness of 10 - 50 filaments, and the length of the easily wiped and light-transmitting protective film is 40 - 90 cm, the width is 5 - 10 cm, and the temperature resistance of the easily wiped and light-transmitting protective film is 100 - 180 °C. In the present invention, the easily wiped and light-transmitting protective film can adopt TPU films of different colors, so that the colors of the formed popcorn soles can be selected diversely. In addition, the setting of the release paper on the easily wiped and light-transmitting protective film can keep the side of the easily wiped and light-transmitting protective film that is in contact with the sole clean during film placing.

[0031] After the film placing step is completed, the film sucking step is carried out. In the film sucking step, compressed air is injected into each air suction hole of the female mold inside the lower mold frame or outside the molding machine for vacuum pumping treatment, and the easily wiped and light-transmitting protective film adheres to the lower bottom surface and the inner side wall of the lower cavity.

[0032] In the forming step, the forming process of the forming step is the same as that of the existing popcorn soles, which will not be repeated here. The difference is only that the forming temperature is 100 - 180 °C, preferably 145 °C. After forming, a formed sole with a film piece is obtained, and the upper edge of the film piece is higher than the upper side edge of the formed sole.

[0033] In the film cutting step, the part of the film piece that is higher than the upper side edge of the formed sole is cut off, and a sole with a trimmed film is obtained after the cutting treatment; the cutting treatment can be achieved by using a cutter.

[0034] In the patch pasting step, a wear-resistant bottom piece is pasted on the bottom surface of the sole with a trimmed film, and the wear-resistant bottom piece has an extension tongue that extends upward and is higher than the upper side edge of the sole with a trimmed film at the front end corresponding to the sole with a trimmed film. After pasting the patch, a stain-proof popcorn sole is obtained. This wear-resistant bottom piece can be a rubber outsole, and the extension tongue can cover the wrinkles of the film piece at the toe of the shoe.

[0035] Production process of an anti-fouling and wear-resistant popcorn sole of the present invention. The film sheet for anti-fouling adopts a sheet structure, and the film is placed outside the molding machine. In this way, when the molding machine is working, workers can separately place the film on the female mold without interference. The molding efficiency is not affected by film placement, and the film placement operation is simple. It does not adopt an online form. The entire molding machine does not need to be modified. Only the original female mold needs to be replaced, so that the entire molding machine can adapt to the production of popcorn soles with and without film, with high versatility, and a wear-resistant patch is used to make the entire popcorn sole have better wear resistance.

[0036] In the present invention, in the film suction step, the female mold is subjected to vacuum treatment outside the molding machine. As Figure 4 shown, a vacuum chamber (not shown in the figure) is provided below the lower cavity in the lower female mold 12. The vacuum chamber is not connected to the lower cavity. Each suction hole is within the range of the vacuum chamber. A vacuum extraction pipe 6 connected to the vacuum chamber is installed on the outer side wall of the lower female mold 12. In this way, the entire female mold can be transferred to a vacuum machine through this vacuum extraction pipe 6 for vacuum extraction of the vacuum extraction pipe 6. At this time, since the easy-to-wipe light-transmitting protective film and the lower female mold 12 enclose a sealed chamber, in this way, each suction hole evacuates this chamber, and the easy-to-wipe light-transmitting protective film is turned downwards and tightly attached to the lower cavity 200 of the lower female mold 12 under the suction force of each suction hole. After the vacuum extraction is completed, the entire female mold is transferred to the molding machine for molding.

[0037] In the present invention, in the above-mentioned film sucking step, the female mold can be subjected to vacuum treatment in the lower mold frame, that is, at each suction hole in the lower female mold 12, there is a suction channel with its upper end communicating with the suction hole and its lower end directly leading to the outside of the bottom plate. There is a placement platform in the lower mold frame for placing the female mold on it and above the bottom surface of the lower mold frame. This placement platform is a placement plate. There is an air flow channel between the placement platform and the side wall of the lower mold frame, and the placement platform is provided with through holes within the range of the lower cavity, that is, a partition plate that divides the lower mold frame into upper and lower two chambers is provided in the lower mold frame. This partition plate is the aforementioned placement platform, and at least one side of the four side edges of the partition plate does not contact the inner side wall of the lower mold frame and has a spacing, and this spacing is the air flow channel. The partition plate is provided with a square through hole communicating with a chamber below at the position of the lower female mold 12, and this square through hole is the through hole. During application, after the film placement step is completed, the female mold is placed on the placement platform, and then the upper mold frame moves downward to close the mold with the lower mold frame. A vacuum chamber is formed when the upper mold frame and the lower mold frame are closed. A vacuum treatment is carried out once before the molding process step is started. At this time, the female mold in the vacuum chamber is correspondingly subjected to vacuum treatment. The vacuum gas sequentially passes through the air flow channel, the through hole, the suction channel and the suction hole to the lower cavity, realizing vacuum pumping of the lower cavity. At this time, the easily wiped light-transmitting protective film in the lower female mold 12 is turned downward by the vacuum suction force and tightly adheres to the lower cavity 200 of the lower female mold 12, realizing the film sucking operation in the molding machine. By adopting this operation, the setting of a vacuum machine can be omitted, and the film sucking operation only takes 5 - 10 seconds and does not occupy too much time, so it will not affect the molding efficiency.

[0038] In the present invention, in order to ensure the airtightness between the upper female mold 11 and the lower female mold 12, upper positioning blocks 111 can be convexly provided on the left and right outer side walls of the upper female mold 11. The bottom surface of the upper positioning block 111 extends downward with positioning columns 112. Corresponding to the upper positioning blocks 111, lower positioning blocks 121 are convexly provided on the outer side wall of the lower female mold 12. The top surface of the lower positioning block 121 is recessed with a positioning notch 122 extending in the up and down direction for the positioning columns 112 to extend into. During application, the cooperation of the positioning columns 112 and the positioning notches 122 can play a guiding role in closing the mold between the upper female mold 11 and the lower female mold 12.

[0039] In the present invention, during application, the female mold can be directly placed in the lower mold frame, or a positioning and installation structure can be provided on the female mold and the lower mold frame, that is, sleeves can be welded to the outer side wall of the lower female mold 12, and sleeve tightening columns for the sleeves to be sleeved on are welded in the lower mold frame.

[0040] The product form of the present invention is not limited to the illustrations and embodiments of this case. Any person's appropriate changes or modifications with a similar idea should be regarded as not departing from the patent scope of the present invention.

Claims

1. A production process for an anti-fouling and wear-resistant popcorn sole, which has a molding step. In the molding step, there is a molding machine for molding the sole. The molding machine has a mold frame and a mold within the mold frame. The mold frame has an upper mold frame and a lower mold frame. The mold has a male mold and a female mold. The male mold is installed on the upper mold frame, and the female mold is installed on the lower mold frame. The female mold has a cavity; it is characterized in that: It also includes a film placing step, a film sucking step, a film cutting step and a patch attaching step. The female die includes an upper female die and a lower female die. The upper female die has an upper cavity penetrating through from top to bottom, and the lower female die has a lower cavity with an open top surface and a closed bottom surface. The lower female die is detachably installed on the lower die frame. The upper cavity and the lower cavity form the cavity. A plurality of air suction holes are arranged on the bottom of the lower cavity, and the air suction holes are communicated to the outside of the lower female die through a ventilation structure. The lower female die and the upper female die are stacked and fitted together up and down, and there is a fastening structure on the upper female die and the lower female die that are fastened and connected together, and there is an airtight structure with a sealed fit on the stacked surface where the upper female die and the lower female die are stacked; The film placing step, the film sucking step, the forming step, the film cutting step and the patch attaching step are sequentially operated in order; In the film placing step, the female die is removed from the lower die frame. First, the lower female die and the upper female die are separated and arranged. Then, the easy-to-wipe light-transmitting protective film is placed on the lower female die. Finally, the upper female die is stacked on the lower female die and fastened together through the fastening structure, completing the film placing step; In the film sucking step, compressed air is injected into each air suction hole of the female die inside the lower die frame or outside the molding machine for vacuum pumping. The easy-to-wipe light-transmitting protective film is attached to the lower bottom surface and the inner side wall of the lower cavity under the vacuum suction of the air suction holes, completing the film sucking step; In the forming step, the forming temperature of the mold is 100 - 180 °C. After forming, a formed sole with a film is obtained, and the upper edge of the film is higher than the upper side edge of the formed sole; In the film cutting step, the part of the film that is higher than the upper side edge of the formed sole is cut off, and a film-repaired sole is obtained after processing; In the patch attaching step, a wear-resistant bottom film is attached to the bottom surface of the film-repaired sole, and the wear-resistant bottom film has an extension tongue that extends upward and is higher than the upper side edge of the film-repaired sole at the front end corresponding to the film-repaired sole. After patch attaching, a stain-proof popcorn sole is obtained.

2. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: The above-mentioned easy-to-wipe light-transmitting protective film is a TPU film with a thickness of 10 - 50 filaments. The length of the above-mentioned easy-to-wipe light-transmitting protective film is 40 - 90 cm, and the width is 5 - 10 cm.

3. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: The temperature resistance of the above-mentioned easy-to-wipe light-transmitting protective film is 100 - 180 °C.

4. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: In the above-mentioned film sucking step, the female die is subjected to vacuum pumping outside the molding machine, and there is a vacuum chamber below the lower cavity inside the lower female die. Each air suction hole is within the range of the vacuum chamber, and a vacuum extraction pipe connected to the vacuum chamber is installed on the outer side wall of the lower female die.

5. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: In the above-mentioned film sucking step, the female die is subjected to vacuum pumping inside the lower die frame. There is an air suction channel at each air suction hole in the lower female die, with its upper end communicating with the air suction hole and its lower end directly leading to the outside of the bottom surface of the lower female die. There is a placement platform in the lower die frame for placing the female die on it and above the bottom surface of the lower die frame. There is an air flow channel between the placement platform and the side wall of the lower die frame, and through holes are opened on the placement platform within the range of the lower cavity.

6. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: Closed annular grooves are recessed on the lower bottom surface of the upper female die and the upper surface of the lower female die. Closed annular sealing gaskets protruding outside the closed annular grooves are embedded in the closed annular grooves. The closed annular grooves and the closed annular sealing gaskets form the airtight structure.

7. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: On the outer side wall of the upper female die, an upper positioning block is convexly provided. A positioning post extends downward from the top surface of the upper positioning block. Corresponding to the upper positioning block, a lower positioning block is convexly provided on the outer side wall of the lower female die. A positioning notch that penetrates up and down and allows the positioning post to extend into is concavely provided on the outer side wall of the lower positioning block.

8. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: A fastening member is provided on the outer side wall of the lower female die. The fastening member has a mounting piece, a pressing rod, and a fastening rod. The mounting piece is adhesively locked and cooperated with the outer side wall of the lower female die. A wing plate extending towards the mounting piece is provided at the first end of the pressing rod. The mounting piece and the wing plate are movably hinged together by a pin shaft. The fastening rod has a cross bar and two side bars. The two ends of the cross bar are correspondingly connected to one ends of the two side bars and integrally formed. The cross bar is located on the pressing rod. The wing plate is located between the two side bars. The wing plate and the two side bars are movably hinged together by a pin shaft. On the outer side wall of the upper female die, fastening seats for pressing and placing the cross bar on are correspondingly and lockingly provided at positions corresponding to the fastening members. The fastening member and the fastening seat constitute the fastening structure.

9. The production process of an anti-fouling and wear-resistant popcorn sole according to claim 1, characterized in that: In the step of placing the film, one side of the easily wiped light-transmitting protective film has a release paper. When placing the easily wiped light-transmitting protective film on the lower female die, the release paper is arranged upward. After placement, the release paper is torn off and then the upper female die is placed on the lower female die.

Images