Manual fixing type popcorn sole forming mold

Abstract

The utility model discloses a manual fixing type popcorn sole forming die which is provided with a male die and a female die, the female die is provided with a die cavity, the female die is provided with a bottom plate, an upper female die and a lower female die, a detachable installation structure is arranged on the bottom plate, the lower female die is detachably installed on the top face of the bottom plate, and a lower cavity is formed in the top face of the lower female die in a sunken mode. The upper female die and the lower female die are detachably installed and matched, an upper cavity is formed in the upper female die, the upper cavity and the lower female cavity form a die cavity, and fixing structures for fixing a diaphragm are arranged on the upper surface and the lower bottom face of the upper female die and located outside the upper cavity in a protruding mode. And the upper surface of the lower female die and the lower bottom surface of the male die are provided with insertion structures in insertion fit with the fixing structures at the fixing structures. Compared with the prior art, the whole membrane is not required to be installed in a forming machine, the forming time is not required to be occupied, the forming efficiency is not influenced by the placement of the membrane, the membrane releasing operation is simple and easy, the whole forming mold can realize the forming of popcorn soles with membranes or without membranes, the universality is high, and the forming machine does not need to be changed.

Description

Technical Field

[0001] This utility model relates to the field of shoe sole production technology, and in particular to a manually fixed popcorn shoe sole forming mold. Background Technology

[0002] Existing popcorn shoe soles are formed using a molding machine, which includes an upper mold frame and a lower mold frame. A punch is installed in the upper mold frame, and a die is located in the lower mold frame. When the upper and lower mold frames are closed, the punch and die close to form a mold cavity. After closing, the material flows through the upper mold frame and punch into the mold cavity, and then, under certain temperature and pressure, the popcorn shoe sole is formed. This type of popcorn shoe sole is lightweight and has good elasticity, making it widely used in athletic shoes. However, popcorn shoe soles are not resistant to dirt and are difficult to clean once dirty, making them unsuitable for long-term wear. To overcome this problem, a type of anti-fouling popcorn shoe sole with a thin film coated on the outer surface has emerged on the market. For example, CN119348060A describes a film-coating integrated molding machine and molding process suitable for popcorn shoe soles. 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 positioned between the concave and convex molds, with the projection of the film material towards the concave mold covering the cavity; the film material conveying stops. S2. The first support and the second support move closer together until the convex mold approaches the film material, and steam is generated. Steam is introduced into the steam chamber of the punch by the steam generator. The steam is blown out towards the film material through the corresponding second air hole, and the film material softens due to heat. S3. The positive and negative pressure generator draws air into the air pressure chamber of the die to create a negative pressure state in the air pressure chamber. The first air hole generates negative pressure suction, and the film material is drawn into the cavity. Due to the extensibility of the film material after being softened by heat, the film material drawn into the cavity deforms and evenly adheres to the inner wall of the cavity. S4. The first support and the second support move closer together until the punch closes the cavity. The material is injected and filled into the cavity through the injection port. Popcorn kernels; Steam is introduced into the steam chamber of the punch by the steam generator. The steam enters the cavity through the second vent corresponding to the steam chamber, and then exits through the second vent corresponding to the exhaust chamber. The steam heats the popcorn kernels and makes their surface sticky; S5. The first support and the second support move closer together until the punch and the die are pressed together. During this process, the cutter is placed in the cutting groove to cut the film material, separating the film material in the cavity; The insert is pressed towards the cavity, and the popcorn kernels are squeezed and... The shoe sole blanks are bonded together, and the film is bonded and applied to the bottom and sides of the shoe sole blank; S6. The first support and the second support separate and move until there is a material discharge gap between the punch and the die. The positive and negative pressure generator introduces positive pressure into the air pressure chamber, and the first air hole generates a thrust that pushes the shoe sole blank out of the cavity. The shoe sole blank falls out through the material discharge gap; S7. The output roller and the recovery roller rotate in cooperation, and the cut part of the film is wound into the recovery roller. Returning to step one, the next round of shoe sole molding process is repeated. However, the molding mold of this molding process is only suitable for the online film installation method. This requires film conveying, film conveying and film adsorption operations in injection molding, which prolongs the entire injection molding process, is time-consuming, and reduces molding efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a manually fixed popcorn shoe sole forming mold to solve the problem of low forming efficiency caused by existing forming molds that only allow online cutting of the film.

[0004] To achieve its purpose, this utility model adopts the following technical solution:

[0005] A manually fixed popcorn shoe sole forming mold has a punch and a die. The die has a cavity. The die has a base plate, an upper die, and a lower die. The base plate has a disassembly and installation structure. The lower die is disassembled and installed on the top surface of the base plate, and the top surface of the lower die has a recessed cavity. The upper die and the lower die are stacked and fitted together, and the upper die and the lower die are disassembled and fitted together. The upper die has a through upper cavity. The upper cavity and the lower cavity constitute the mold cavity. The upper surface and the lower bottom surface of the upper die are both provided with fixing structures for fixing a diaphragm outside the upper cavity. The upper surface of the lower die and the lower bottom surface of the punch are both provided with insertion structures that fit into the fixing structures.

[0006] The aforementioned base plate is a square plate with several through holes around its perimeter for locking and installation. Each through hole is fitted with a bolt for locking, and the through holes and bolts together form the aforementioned disassembly and installation structure.

[0007] The outer contours of the upper and lower concave molds match the outer contours of the shoe sole. With the length direction of the concave mold as the front-to-back direction, the front and rear ends of the lower concave mold are respectively welded to the upper and lower through positioning sleeves. The bottom plate is fixed with a positioning post extending into the positioning sleeve at the positioning sleeve.

[0008] The outer wall of the lower die is welded with several lower positioning blocks that are spaced around the lower die in the circumferential direction. Each lower positioning block has an upper protruding post protruding upward on its top surface. The lower outer wall of the upper die is welded with lower stacking blocks that are aligned with each lower positioning block and stacked vertically. Each lower stacking block has a lower positioning hole that allows the upper protruding post to be inserted into it and penetrate vertically. The upper outer wall of the upper die is welded with several upper stacking blocks that are spaced around the upper die in the circumferential direction. Each upper stacking block has an upper positioning hole that penetrates vertically. The lower outer wall of the punch has an upper positioning block that overlaps with each upper stacking block. The bottom surface of the upper positioning block has a lower protruding post protruding downward and extending into the positioning hole.

[0009] The upper surface and lower bottom surface of the upper die are provided with a number of vertically arranged positioning pins that are spaced around the upper die circumferentially. The positioning pins on the same plane constitute the fixing structure. The upper surface of the lower die and the lower bottom surface of the punch are provided with positioning pin grooves corresponding to each positioning pin, which are fully accommodated within the positioning pins. The positioning pin grooves constitute the insertion structure.

[0010] This utility model discloses a manually fixed popcorn shoe sole forming mold. In application, the upper concave mold is directly removed from the lower concave mold. Then, the diaphragm is laid flat on the upper concave mold. Next, the worker fixes one edge of the diaphragm to the upper surface of the upper concave mold using a fixing structure. Then, the other edge of the diaphragm is pulled down and passed through the upper cavity to the lower bottom surface of the upper concave mold, and fixed to the lower bottom surface of the lower concave mold using a fixing structure. In this way, the diaphragm is pulled taut from top to bottom and attached to the cavity wall of the upper cavity, thus completing the fixing of the diaphragm. After fixing, the upper concave mold is reinstalled in the lower concave mold to carry out the forming operation. Compared with existing technologies, only one additional upper concave mold is needed for each molding die. In this way, when the molding die is molding, the extra upper concave mold can be fixed by the worker by setting the diaphragm on the upper concave mold. After the molding die is formed, the upper concave mold with the shoe sole is removed, and the upper concave mold with the diaphragm is installed on the lower concave mold to carry out the next molding operation. The entire installation of the diaphragm does not need to be done in the molding machine, does not occupy molding time, the molding efficiency is not affected by the placement of the diaphragm, and the film placement operation is simple. The entire molding die can realize the molding of popcorn shoe soles with or without film, which is highly versatile and does not require modification of the molding machine. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the die structure;

[0012] Figure 2 The three-dimensional view of the upper die is omitted for the purpose of creating the die cavity. Detailed Implementation

[0013] To further explain the technical solution of this utility model, a detailed description is provided below in conjunction with the accompanying drawings.

[0014] This utility model discloses a manually fixed popcorn shoe sole forming mold, such as Figure 1 , 2 As shown, the device has a punch (not shown) and a die 1. The die 1 has a cavity. The punch has an existing structure, that is, the punch has a mold base that overlaps with the die. The bottom surface of the mold base has a forming core that extends into the die cavity. The die 1 has a base plate 11, a lower die 12 and an upper die 13. The base plate 11 has a disassembly and installation structure. This disassembly and installation structure can be used to install it in the lower mold frame of the molding machine. Preferably, the base plate 11 is a square plate. Several bolt holes 111 for locking are opened around the base plate 11. Preferably, the bolt holes 111 have an expanding section and a reducing section. The expanding section is above the reducing section. Each bolt hole 111 is provided with a bolt for locking (not shown). The bolt holes and bolts constitute the disassembly and installation structure. During installation, the bolt passes through the bolt hole into the lower mold frame of the molding machine and is locked together with the molding machine. The head of the bolt is located inside the expansion section and will not protrude outwards.

[0015] The lower die 12 is detachably installed on the top surface of the base plate 11, and the top surface of the lower die 12 has a recessed cavity 100. The bottom of the cavity 100 has several vacuum extraction holes, each of which leads to the outside of the bottom surface of the base plate 11. The outer contours of the upper die 13 and the lower die 12 match the outer contours of the shoe sole. The length direction of the lower die 12 is the front-to-back direction. The front and rear ends of the lower die 12 are respectively welded to the upper and lower through positioning sleeves 121. The base plate 11 is fixed with a positioning post 112 extending into the positioning sleeve at the positioning sleeve 121. During installation, the positioning sleeve 121 of the lower die 12 is directly aligned with the positioning post 112 of the base plate 11, which is convenient for disassembly and assembly.

[0016] The upper concave mold 13 and the lower concave mold 12 are stacked and fitted together, and the upper concave mold 13 and the lower concave mold 12 can be disassembled and installed together. The upper concave mold 13 has an upper cavity that runs through it from top to bottom (not shown in the figure). The upper cavity and the lower cavity constitute the mold cavity. The upper surface and the lower bottom surface of the upper concave mold 13 are provided with fixing structures for fixing the diaphragm outside the upper cavity. The upper surface of the lower concave mold 13 and the lower bottom surface of the punch are provided with insertion structures that are inserted and fitted into the fixing structures at the fixing structures.

[0017] Preferably, the outer wall of the lower die 12 is welded with a plurality of lower positioning blocks 122 distributed circumferentially around the lower die 12. The top surface of each lower positioning block 122 is provided with an upper protruding post 123. The lower outer wall of the upper die 13 is welded with lower stacking blocks 131 that are aligned one-to-one with each lower positioning block 122. Each lower stacking block 131 has a lower positioning hole (not shown in the figure) for the upper protruding post to be embedded in and pass through vertically. The upper outer wall of the upper die 13 is welded with a plurality of lower positioning blocks 122. Several upper stacking blocks 132 are distributed circumferentially around the upper die. Each upper stacking block 132 has an upper positioning hole (not shown in the figure) that extends vertically. The lower outer side wall of the punch has an upper positioning block that overlaps with each upper stacking block. That is, the die base and the upper die are stacked and fitted together. The lower bottom surface of the die base, located outside the die core, has an upper positioning block that aligns with each upper stacking block. The bottom surface of the upper positioning block has a lower protruding post (not shown in the figure) that protrudes downward and extends into the positioning hole. In application, the upper positioning post of the lower positioning block is inserted into the lower positioning hole of the lower stacking block 131 of the upper die to achieve fixed positioning and stacking of the upper and lower dies. When closing the die, the lower positioning post and the upper positioning hole are used to achieve fixed positioning and closing of the punch and die.

[0018] The upper surface and lower bottom surface of the upper die 13 are provided with a plurality of vertically arranged positioning pins 133 that are spaced around the upper die circumferentially. The positioning pins on the same plane constitute the fixing structure, that is, the positioning pins on the upper surface of the upper die constitute the fixing structure of the upper die, and the positioning pins on the lower bottom surface of the upper die constitute the fixing structure of the lower bottom surface of the upper die. The upper surface of the lower die 12 and the lower bottom surface of the punch are respectively provided with positioning pin grooves 124 for the positioning pins to be completely accommodated. The positioning pin grooves constitute the insertion structure.

[0019] This utility model discloses a manually fixed popcorn shoe sole forming mold. In application, each forming mold requires an additional upper concave mold. When loading the mold, the film to be formed is cut into strips, the length of which is slightly shorter than the circumference of the mold cavity, and the width of which is greater than the depth of the mold cavity. During loading, first pull the upper concave mold 13 upwards to remove it from the lower concave mold 12, then remove it from the forming machine. The film is placed vertically in the upper concave cavity of the upper concave mold 13. Then, manually pull the upper edge of the film to the upper surface of the upper concave mold 13, allowing the positioning pins 133 to pass through the film. After all the positioning pins on the upper surface of the upper concave mold have passed through the film, turn the upper concave mold over, tighten the film, and then pull the lower edge of the film to the lower bottom surface of the upper concave mold, allowing the positioning pins 133 to pass through the film. In this way, the film adheres tightly to the wall of the upper concave cavity of the upper concave mold, and is secured by the positioning pins on the upper surface and lower bottom surface of the upper concave mold, completing the placement of the film. After the film is placed and the molding machine finishes molding the sole and then opens the mold, the upper concave mold inside the molding machine is pulled upwards, and the upper concave mold with the film placed is inserted into the lower concave mold of the molding machine, allowing the molding machine to proceed with the next molding cycle. Compared with existing technologies, this new molding die features a split-type concave mold, and the cooperation between the positioning pins on the upper and lower concave molds allows the entire concave mold to be suitable for molding popcorn soles with or without film, offering strong versatility. It requires no modification to the molding machine, serving two purposes in one. Furthermore, when molding popcorn with film, the film is placed outside the molding machine. During the molding process, idle workers can install the film on the separately set upper concave mold, ensuring that the molding time is not affected by the film and does not occupy molding time, thus reducing molding efficiency. Additionally, the disassembly and assembly of the upper and lower concave molds are relatively simple, making it convenient to use and simplifying the film placement operation.

[0020] In this new type of invention, in order to improve production efficiency, two concave molds can be installed on each base plate, with the two molds arranged laterally at intervals.

[0021] The product form of this utility model is not limited to the illustrations and embodiments in this case. Any appropriate changes or modifications made to it based on similar ideas should be considered as not departing from the patent scope of this utility model.

Claims

1. A manually fixed popcorn shoe sole forming mold, comprising a punch and a die, the die having a cavity, characterized in that: The aforementioned concave mold has a base plate, an upper concave mold, and a lower concave mold. The base plate is provided with a disassembly and installation structure. The lower concave mold is disassembled and installed on the top surface of the base plate, and the top surface of the lower concave mold has a recessed cavity. The upper and lower concave molds are stacked and fitted together, and the upper and lower concave molds are disassembled and fitted together. The upper concave mold has an upper cavity that runs through it from top to bottom. The upper cavity and the lower cavity constitute the mold cavity. The upper surface and the lower bottom surface of the upper concave mold are both provided with a fixing structure for fixing the diaphragm outside the upper cavity. The upper surface of the lower concave mold and the lower bottom surface of the punch are both provided with an insertion structure that engages with the fixing structure at the fixing structure.

2. The manually fixed popcorn shoe sole forming mold according to claim 1, characterized in that: The aforementioned base plate is a square plate with several through holes around its perimeter for locking and installation. Each through hole is fitted with a bolt for locking, and the through holes and bolts together form the aforementioned disassembly and installation structure.

3. The manually fixed popcorn shoe sole forming mold according to claim 1, characterized in that: The outer contours of the upper and lower concave molds match the outer contours of the shoe sole. With the length direction of the concave mold as the front-to-back direction, the front and rear ends of the lower concave mold are respectively welded to the upper and lower through positioning sleeves. The bottom plate is fixed with a positioning post extending into the positioning sleeve at the positioning sleeve.

4. The manually fixed popcorn shoe sole forming mold according to claim 1, characterized in that: The outer wall of the lower die is welded with several lower positioning blocks that are spaced around the lower die in the circumferential direction. Each lower positioning block has an upper protruding post protruding upward on its top surface. The lower outer wall of the upper die is welded with lower stacking blocks that are aligned with each lower positioning block and stacked vertically. Each lower stacking block has a lower positioning hole that allows the upper protruding post to be inserted into it and penetrate vertically. The upper outer wall of the upper die is welded with several upper stacking blocks that are spaced around the upper die in the circumferential direction. Each upper stacking block has an upper positioning hole that penetrates vertically. The lower outer wall of the punch has an upper positioning block that overlaps with each upper stacking block. The bottom surface of the upper positioning block has a lower protruding post protruding downward and extending into the positioning hole.

5. The manually fixed popcorn shoe sole forming mold according to claim 1, characterized in that: The upper surface and lower bottom surface of the upper die are provided with a number of vertically arranged positioning pins that are spaced around the upper die circumferentially. The positioning pins on the same plane constitute the fixing structure. The upper surface of the lower die and the lower bottom surface of the punch are provided with positioning pin grooves corresponding to each positioning pin, which are fully accommodated within the positioning pins. The positioning pin grooves constitute the insertion structure.

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