Popcorn sole and rubber outsole integrated foaming forming mold

Abstract

The utility model discloses a popcorn sole and rubber outsole integrated foaming forming mould, which relates to the technical field of shoemaking moulds, and comprises a concave mould fixedly arranged on a fixed mould plate and a convex mould fixedly arranged on a movable mould plate, the concave mould and the convex mould are matched with each other, a cavity for sole foaming forming is formed after the convex mould and the concave mould are closed, and the convex mould and the concave mould are matched with each other. A plurality of positioning grooves are formed in the edge, making contact with the male die, of the top of a cavity of the female die in a concave mode, and a plurality of positioning protrusions which are used for fixing a shoe sole structure assembly and can be clamped into the positioning grooves are arranged on the edge of the die closing face of the male die in a protruding mode. A plurality of nano-scale holes which are arranged in a penetrating manner and through which steam or cooling water can pass are formed in the inner peripheral wall of the top of the cavity of the female die, and a plurality of supporting pieces used for preventing the shoe sole structure assembly from deviating are arranged at the bottom of the cavity of the female die in a protruding manner. According to the forming die disclosed by the utility model, the insole and the sole structure component can be integrally formed by foaming, so that the forming efficiency of the sole is greatly improved, and the firmness of the sole is better.

Description

Technical Field

[0001] The utility model relates to the technical field of shoemaking molds, in particular to a popcorn sole and a rubber outsole integrated foaming molding mold. Background Art

[0002] In the production process of existing soles, the midsole of the shoe is usually foamed and formed by steam heating, and then the foamed midsole is fixed to the sole structure component (outsole, patch, carbon plate) by adhesive. When fixing the outsole or patch to the sole structure component, the worker first applies adhesive to the joint surface of the outsole or patch or carbon plate and the midsole, and then joins the midsole coated with adhesive to the outsole or patch or carbon plate. Then the worker applies a certain amount of pressure to promote the bonding process of the adhesive. After the adhesive is cured, the molded sole is corrected to ensure that the joint surface is flat. When fixing the carbon plate, it is necessary to apply adhesive on both sides of the carbon plate, and then join one side of the carbon plate to the midsole and the other side to the outsole.

[0003] Since the entire bonding process is manually operated, not only is the bonding efficiency of the soles low, but there is also the possibility of operators making operational errors due to uneven force during the bonding process, which leads to a significant increase in the defective product rate. The volatile components of the glue during the bonding process can also cause great harm to the workers' health. In addition, the soles bonded together by adhesives are not firmly bonded and are prone to debonding, making it difficult to guarantee product quality.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned issues, which led to the creation of this case. Utility Model Content

[0005] The utility model provides a popcorn sole and a rubber outsole integrally foamed and formed mold, aiming to solve the problems of low bonding efficiency, complicated operation and weak bonding of the existing soles.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A popcorn sole and rubber outsole integrated foaming molding mold, including a concave mold fixed on a fixed mold plate and a convex mold fixed on a movable mold plate, the concave mold and the convex mold being adapted to each other, forming a cavity for sole foaming molding when the convex mold and the concave mold are joined, a plurality of positioning grooves are concavely provided on the edge of the cavity top of the concave mold in contact with the convex mold, a plurality of positioning protrusions are convexly provided on the edge of the joining surface of the convex mold for fixing the sole structure component and capable of being snapped into the positioning grooves, a plurality of nano-scale holes are provided through the inner peripheral wall of the cavity top of the concave mold and capable of allowing steam or cooling water to pass through, and a plurality of support members are convexly provided on the cavity bottom of the concave mold for preventing the sole structure component from shifting.

[0008] Furthermore, the area of ​​the nanoscale holes accounts for 1 / 2 or 1 / 3 of the depth of the concave mold cavity.

[0009] Furthermore, the support member is a vertically arranged support column, one end of which is arranged inside the fixed mold plate, and the other end extends upward out of the cavity of the female mold.

[0010] Furthermore, the support member is an upright elastic telescopic column, one end of which is sleeved with a spring and arranged inside the fixed mold plate, and the other end of which extends upward out of the cavity of the female mold.

[0011] Furthermore, a feed port for the foaming material to enter and a plurality of air holes for the external steam to pass through are provided at the bottom of the cavity of the above-mentioned concave mold.

[0012] Furthermore, the outer wall of the above-mentioned die is densely covered with a plurality of blind holes for steam to pass through.

[0013] Furthermore, the die-matching surface of the male die is provided with a plurality of air holes for the passage of external steam.

[0014] Furthermore, the pores are regular hexagonal pores composed of a plurality of holes.

[0015] From the above description of the structure of the utility model, it can be seen that the utility model has the following advantages:

[0016] Firstly, the utility model has a plurality of positioning grooves on the edge of the top of the cavity of the die that contacts the punch, and a plurality of positioning protrusions on the edge of the die-jointing surface of the punch for fixing the sole structure component and capable of being snapped into the above-mentioned positioning grooves, so that the sole structure component can be fixed to the die-jointing surface of the punch through the positioning protrusions, and a plurality of nanometer-scale holes are provided on the inner peripheral wall of the top of the die cavity that are penetrated and can allow steam or cooling water to flow through, and a plurality of supporting members are provided on the bottom of the cavity of the die for preventing the sole structure component from shifting. In this way, when the punch with the sole structure component fixed thereon is joined with the die, the foaming material in the cavity formed after the punch and the die are joined is heated by steam, so that the foaming material gradually expands and is welded to the sole structure component, thereby realizing the integrated molding of the foamed sole and the sole structure component. The molded sole is more firm and less prone to cracking or degumming.

[0017] Secondly, the inner peripheral wall at the top of the concave mold cavity of the utility model is provided with several nanometer-scale holes for the passage of steam or cooling water. The nanometer-scale holes can not only increase the heating speed of the molded sole in the molding mold, but also when the molded sole is cooled, since the height of the carbon plate is consistent with the height of the inner peripheral wall with nanometer-scale holes, the cooling water can quickly cool down the molded sole of this part, so that the carbon plate wrapped in this part can be quickly cooled, avoiding the performance degradation or damage of the carbon plate due to untimely cooling.

[0018] Third, the bottom of the cavity of the die and the closing surface of the punch of the utility model are provided with a number of air holes for the passage of external steam. The air holes are regular hexagonal air holes composed of multiple small holes. When the cavity formed after the die and the punch are closed is heated, part of the steam will enter the cavity through the air holes, thereby increasing the heating rate of the cavity.

[0019] Fourthly, the outer wall of the die of the utility model is densely covered with a number of blind holes for steam to pass through. The blind holes can improve the heat exchange efficiency during steam heating, thereby allowing the cavity after the die and punch are combined to heat up quickly and also to cool down quickly during cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the concave mold of the utility model.

[0021] Figure 2 It is a structural schematic diagram of the punch of the utility model.

[0022] Figure numerals: 10 - fixed template; 11 - concave mold; 111 - nanometer-scale hole; 112 - positioning groove; 113 - feed port; 114 - blind hole; 20 - movable template; 21 - punch; 211 - protrusion; 212 - positioning protrusion; 30 - air hole; 40 - support member. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1 and Figure 2A mold for integrally forming a popcorn sole and a rubber outsole comprises a concave mold 11 fixed on a fixed mold plate 10 and a convex mold 21 fixed on a movable mold plate 20. The concave mold 11 and the convex mold 21 are adapted to each other. When the convex mold 21 and the concave mold 11 are combined, a cavity for foaming the sole is formed. The bottom of the cavity of the concave mold 11 is provided with a feed port 114 for feeding foaming particles and a plurality of air holes 30 for passing external steam. In this embodiment, the air holes 30 are regular hexagonal air holes composed of a plurality of small holes. By providing a plurality of air holes 30, the top of the cavity of the concave mold 11 and the convex mold 21 are connected. The contacting edges are provided with a number of positioning grooves 113, the edges of the mold surface of the punch 21 are provided with a number of positioning protrusions 212 for fixing the sole structure assembly and which can be snapped into the above-mentioned positioning grooves 113, the inner peripheral wall of the top of the cavity of the die 11 is provided with a number of nano-scale holes 112 which are set through and can allow steam or cooling water to pass through, and the bottom of the cavity of the die 11 is provided with a number of support members 40 for preventing the sole structure assembly from shifting. The support members 40 can fix the sole structure assembly during the foaming molding of the sole to prevent the sole structure assembly from shifting due to the expansion of the foaming material.

[0025] It should be noted that the fixed platen 10 and movable platen 20 of the present invention are hinged structures. After the mold is closed, the staff pushes them into the corresponding steam heating equipment for heating and foaming. Since the use of steam to heat and foam the sole mold is a conventional technical means in the existing sole molding field, it will not be described in detail here. In the present invention, the provision of a feed port 114 at the bottom of the cavity of the die 11 is not a necessary technical feature. Since the mold closing method in this solution is left-right closing, manual discharge can be adopted. The provision of a feed port 114 at the bottom of the cavity of the die 11 is a preferred method.

[0026] Reference Figure 1 and Figure 2 The area of ​​the nano-scale pores 112 accounts for 1 / 2 or 1 / 3 of the depth of the cavity of the die 11. In this way, after the carbon plate is placed in the cavity of the die 11, due to the effect of the support, the carbon plate and the surrounding wall of the die 11 with the nano-scale pores 112 are at the same height, so that the molded sole and the carbon plate wrapped in the molded sole can be quickly cooled during cooling.

[0027] Reference Figure 1 and Figure 2 The support member 40 is an upright support column, one end of which is arranged inside the fixed mold plate 10, and the other end extends upward from the cavity of the die 11. When the die 11 and the punch 21 are closed, the end of the support column abuts against the outsole or patch fixed by the positioning protrusion 212 of the punch 21, thereby preventing the outsole or patch from shifting during foaming.

[0028] Reference Figure 1and Figure 2 In the second embodiment of the present invention, the support member is an upright elastic telescopic column, one end of which is equipped with a spring and is arranged inside the fixed template 10, and the other end extends upward from the cavity of the die 21. The end of the elastic telescopic column can abut against the carbon plate, thereby preventing the carbon plate from shifting during foaming of the sole. Since the spring has the rebound characteristic, it can also play a role in assisting demolding.

[0029] Reference Figure 1 and Figure 2 In the present invention, the die 11 is roughly a sole-shaped cavity, the punch 21 is roughly in the shape of a sole, and the die surface of the punch 21 is also provided with a plurality of air holes 30 for external steam to pass through and a plurality of protrusions 211 for forming sole patterns. The air holes 30 can increase the temperature rise rate in the cavity after the die 11 and the punch 21 are molded together, and the protrusions 211 can form a plurality of concave holes on the sole after the foaming midsole and the outsole are integrally formed, thereby achieving an anti-slip effect.

[0030] Reference Figures 1 to 2 The outer wall of the die 11 is densely covered with a number of blind holes 115, which can improve the heat exchange efficiency, thereby accelerating the heating rate or cooling rate of the cavity formed after the die 11 and the punch 21 are combined, reducing the time of the sole foaming molding and improving the molding efficiency.

[0031] Reference Figure 1 and Figure 2 When foaming the outsole and midsole in the present invention, the cut outsole (usually made of rubber) is first fixed to the positioning protrusion 212 on the mold surface of the male mold 21. Then, the movable mold 20 is pulled up to drive the male mold 21 to move so that the male mold 21 is molded with the female mold 11 of the fixed mold 10 to form a cavity for molding the sole. At this time, the support part abuts the outsole. Then, the foaming material for making the midsole is injected into the cavity through the feed port 114 of the female mold 11. Then, the mold after the mold is molded is pushed into the steam heating equipment. The cavity is heated and formed by steam. During the forming process, part of the steam will enter the cavity through the air holes 30 of the die 11 and the air holes 30 of the punch 21, thereby accelerating the temperature rise rate in the cavity. After reaching a certain temperature, the foaming material injected into the cavity will begin to expand and fuse with the outsole, so that the outsole and the midsole are formed in one piece without the need for adhesive bonding and fixing. The forming mold is then sent to a cooling device for cooling. The cooling method can be water cooling. After cooling is completed, the forming mold can be opened and the formed sole can be taken out.

[0032] Reference Figure 1 and Figure 2When the midsole and patch are foamed and molded in the present invention, the cut patch is first fixed to the positioning protrusion 212 on the mold surface of the male mold 21, and then the above-mentioned steam heating step is repeated. After the steam heating is completed, the midsole formed by the foamed particles will be welded together with the patch to achieve one-piece molding without the use of adhesive.

[0033] Reference Figure 1 and Figure 2 When the outsole, carbon plate, and midsole are integrally molded in the present invention, the cut outsole is first secured to the positioning protrusions 212 on the mating surface of the male mold 21. The carbon plate is then secured to the positioning protrusions 212 on the mating surface of the male mold 21. The movable mold plate 20 is then pulled to move the male mold 21, causing it to mate with the female mold 11 of the fixed mold plate 10 to form a cavity for molding the sole. At this point, the support member abuts the carbon plate. The foaming material used to make the midsole is then injected into the cavity through the feed port 114 of the female mold 11. The mold is then pushed into a steam heating device for heating and molding. During the molding process, some steam enters the cavity through the pores 30 of the female mold 11 and the male mold 21, accelerating the temperature rise within the cavity. After reaching a certain temperature, the foaming material begins to expand and fuses with the carbon plate and the outsole. After foaming and molding, it is sent to the cooling equipment to cool the molding mold. Because the top of the inner wall of the die 11 is provided with a nano-scale hole 111 that is set through, the molded sole of this part and the carbon plate wrapped therein can be cooled quickly. After cooling is completed, the molding mold can be opened to take out the molded sole.

[0034] The utility model is provided with a plurality of positioning grooves 112 on the edge of the top of the cavity of the die 11 that contacts the punch 21, and a plurality of positioning protrusions 212 for fixing the sole structure component and capable of being snapped into the above-mentioned positioning grooves 112 are provided on the edge of the mating surface of the punch 21, so that the sole structure component can be fixed to the mating surface of the punch 21 through the positioning protrusions 212, and a plurality of nano-scale holes 111 are provided on the inner peripheral wall of the top of the cavity of the die 11, which are penetrated and can allow steam or cooling water to flow through, and a plurality of supporting members 40 are provided on the bottom of the cavity of the die 11 for preventing the sole structure component from shifting. In this way, when the punch 21 with the sole structure component fixed thereon is mated with the die 11, the foaming material in the cavity formed after the die 21 and the die 11 are mated is heated by steam, so that the foaming material gradually expands and is welded to the sole structure component, thereby realizing the integrated molding of the foamed sole and the sole structure component. The molded sole is more firm and less prone to cracking or degumming.

[0035] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A popcorn sole and rubber outsole integrated foaming molding die, characterized in that: It includes a concave mold fixed on a fixed mold plate and a convex mold fixed on a movable mold plate, the concave mold and the convex mold are adapted to each other, and when the convex mold and the concave mold are molded together, a cavity for foaming and molding the sole is formed, a plurality of positioning grooves are concavely arranged on the edge of the cavity top of the concave mold that contacts the convex mold, a plurality of positioning protrusions that are used to fix the sole structure component and can be inserted into the positioning grooves are convexly arranged on the edge of the mold surface of the convex mold, a plurality of nanometer-scale holes that are penetrated and can allow steam or cooling water to pass through are provided on the inner peripheral wall of the top of the cavity of the concave mold, and a plurality of supporting members that are used to prevent the sole structure component from shifting are convexly arranged on the bottom of the cavity of the concave mold.

2. The popcorn sole and rubber outsole integrated foaming molding die according to claim 1, characterized in that: The area of ​​the nanoscale holes occupies 1 / 2 or 1 / 3 of the depth of the concave mold cavity.

3. The popcorn sole and rubber outsole integrated foaming molding die according to claim 1, characterized in that: The support member is a vertically arranged support column, one end of which is arranged inside the fixed mold plate, and the other end of which extends upward out of the cavity of the concave mold.

4. The popcorn sole and rubber outsole integrated foaming molding die according to claim 1, characterized in that: The support member is an elastic telescopic column arranged vertically, one end of which is sleeved with a spring and arranged inside the fixed mold plate, and the other end of which extends upward out of the cavity of the concave mold.

5. The popcorn sole and rubber outsole integrated foaming molding die according to claim 1, characterized in that: The bottom of the cavity of the concave mold is provided with a feed port for the foaming material to enter.

6. The popcorn sole and rubber outsole integrated foaming molding die according to claim 1, characterized in that: The bottom of the cavity of the concave mold is provided with a plurality of air holes for external steam to pass through.

7. The popcorn sole and rubber outsole integrated foaming molding die according to claim 3 or 4, characterized in that: The peripheral wall of the concave mold is densely covered with a plurality of blind holes for steam to pass through.

8. The popcorn sole and rubber outsole integrated foaming molding die according to claim 3 or 4, characterized in that: The die surface of the male die is provided with a plurality of air holes for external steam to pass through.

9. The popcorn sole and rubber outsole integrated foaming molding die according to claim 6, characterized in that: The pores are regular hexagonal pores composed of a plurality of holes.

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