In-mold insert and popcorn foaming particle integrated forming sole equipment

Abstract

The utility model discloses in-mold insert and popcorn foaming particle integrated forming sole equipment, which relates to the technical field of sole foaming forming and comprises a frame body, a fixed mold frame capable of translating is arranged in the frame body, and a movable mold frame capable of getting close to or away from the fixed mold frame is arranged above the fixed mold frame by taking the translating direction of the fixed mold frame in the frame body as the left-right direction. A fixed mold and a movable mold are installed in the fixed mold frame and the movable mold frame correspondingly and are integrally formed through 3D printing, and a plurality of nanoscale holes which are formed in a penetrating mode and can allow steam or water flow to enter are formed in the inner circumferential wall of the top of a mold cavity of the fixed mold and the inner circumferential wall of the top of a mold cavity of the movable mold correspondingly. A plurality of elastic telescopic positioning pieces used for fixing a carbon plate are arranged in die cavities of the fixed die and the movable die, a feeding port used for feeding and a plurality of air holes used for steam to pass through are formed in the bottom of the die cavity of the fixed die, and a vacuumizing assembly is further arranged on one side of the frame body. According to the scheme, the sole and the carbon plate can be integrally formed, and the carbon plate of the formed sole cannot be subjected to performance reduction or damage.

Description

Technical Field

[0001] The utility model relates to the technical field of sole foaming and molding, in particular to a sole molding device that integrates in-mold inserts and popcorn foaming particles. Background Art

[0002] Popcorn foam particles are usually called thermoplastic polyurethane foam beads (ETPU), which are a high-performance thermoplastic polyurethane with good mechanical properties, wear resistance and chemical resistance. When it is foamed into small popcorn-shaped particles, these small particles are connected to each other to form a three-dimensional network structure with a large number of gaps. The soles made of this material are lightweight, highly elastic and have good shock absorption performance. In order to enhance the toughness and strength of the soles made of the above materials, a support member is usually added to the sole. The purpose of the support member is to enhance the structural strength of the sole and provide additional support to improve the performance of the sole. The material of the support member can be made of EVA, PU, ​​carbon fiber and other materials. They can help the sole better withstand pressure and impact, greatly improving the comfort and performance of the shoes. Among them, the support member made of carbon fiber is also called a carbon plate, which is composited by bonding resin and carbon fiber.

[0003] The manufacturing process of the existing carbon plate sole is usually to first form the first bottom and the second bottom of the sole by steam foaming, then air cooling or water cooling, demolding after cooling, and then bonding the carbon plate between the first bottom and the second bottom. The molding process of this carbon plate sole is complicated and the operation is cumbersome. Different molds need to be used in the manufacturing process. After the sole is formed, it needs to be bonded with glue. Not only is the bonding not firm, but the volatilization of the glue components will also cause great harm to the health of the staff.

[0004] A Chinese utility model patent with publication number CN216723351U discloses a sole integrally foamed with a carbon plate, comprising a midsole and a carbon plate; the midsole and the carbon plate are integrally foamed by a mold, the carbon plate divides the midsole into an upper area above the carbon plate and a lower area below the carbon plate, a positioning structure for being positioned by the mold is provided on the carbon plate, a mold-molded hole is formed at the midsole position corresponding to the positioning structure, a foaming material is injected into the mold, and then the foaming particles in the mold are foamed with water vapor, so that the carbon plate and the midsole can be integrally molded, thereby improving the efficiency of sole molding.

[0005] However, in actual production, we found that the performance of the carbon plate of the sole formed by the above scheme was greatly reduced, and the carbon plate was damaged. We found that the reason was that during steam heating, the mold was in a nearly sealed state, which resulted in not only a slow heating rate in the cavity, but also a slow cooling rate when the sole was cooled after molding in the cavity. In this case, the carbon plate was above the heat resistance limit for a long time and could not be cooled quickly, which would cause the carbon plate to degrade in performance or be damaged due to high temperature.

[0006] In view of this, the inventor of the present invention conducted an in-depth study on the above-mentioned issues, which resulted in the present case. Utility Model Content

[0007] The utility model provides a shoe sole device integrating in-mold inserts and popcorn foam particles, aiming to solve the problems that the performance of the carbon plate is greatly reduced and the carbon plate is easily damaged after the existing shoe sole and carbon plate are integrally formed.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A shoe sole forming device with mold inserts and popcorn foam particles integrally formed, comprising a frame, a fixed mold frame which can be translated is provided in the frame, the translation direction of the fixed mold frame in the frame is the left and right direction, a movable mold frame which can approach or move away from the fixed mold frame is provided above the fixed mold frame, a fixed mold and a movable mold are respectively installed in the fixed mold frame and the movable mold frame, the fixed mold and the movable mold are integrally formed by 3D printing, the inner peripheral wall at the top of the fixed mold cavity and the inner peripheral wall at the top of the movable mold cavity are both provided with a plurality of nanometer-scale holes which are penetrated and can allow steam or water to pass through, a plurality of elastic telescopic positioning parts for fixing carbon plates are provided in the mold cavities of the fixed mold and the movable mold, a feed port for feeding and a plurality of air holes for steam to pass through are provided at the bottom of the mold cavity of the fixed mold, a vacuum pumping component is also provided on one side of the frame, the vacuum pumping component is connected to the plurality of air holes and vacuums the cavity formed after the fixed mold and the movable mold are combined.

[0010] Furthermore, the total area of ​​the nanoscale holes accounts for 1 / 2 or 1 / 3 of the sum of the depth of the fixed mold cavity and the depth of the movable mold cavity.

[0011] Furthermore, the elastic telescopic positioning member includes a plurality of positioning columns penetrating the movable mold cavity and the fixed mold cavity, and the ends of the plurality of positioning columns are all convexly provided with circular ends, and the diameter of the circular ends is smaller than the diameter of the positioning columns.

[0012] Furthermore, the frame body is provided with a first slide rail lying along the left-right direction, and at least two of the fixed mold frames are installed on the first slide rail; the left and right sides of the top of the frame body are provided with second slide rails lying along the left-right direction, and the two second slide rails are installed with material barrels that can be translated left and right, and the two barrels are provided with discharge ports on the opposite sides, and the two discharge ports are connected with barrel feeding pipes, and the ends of the two barrel feeding pipes are respectively connected to the two fixed mold frames.

[0013] Furthermore, the peripheral walls of the plurality of movable molds and the plurality of fixed molds are densely covered with a plurality of blind holes for cooling water or steam to pass through.

[0014] Furthermore, at least one elastic telescopic protrusion for demoulding is convexly provided in the mold cavity of the movable mold, the elastic telescopic protrusion is vertically arranged, and a plurality of the above-mentioned air holes are opened on the top surface of the elastic telescopic protrusion.

[0015] Furthermore, the vacuum pump assembly includes a vacuum tank and a vacuum pump. A vacuum port is provided at the bottom of the frame. The vacuum tank and the vacuum port are connected via a vacuum hose.

[0016] Furthermore, the mold cavity of the movable mold and the mold cavity of the fixed mold are respectively provided with at least two positioning pins.

[0017] Furthermore, the pores are regular hexagonal deformation pores composed of a plurality of pores.

[0018] From the above description of the structure of the utility model, it can be seen that the utility model has the following advantages:

[0019] Firstly, the utility model provides a plurality of nanometer-scale holes for steam or water flow to pass through on the inner peripheral wall at the top of the fixed mold cavity and the inner peripheral wall at the top of the movable mold cavity, and provides a feed port for feeding and a plurality of air holes for steam to pass through at the bottom of the mold cavity of the fixed mold. When the fixed mold and the movable mold are closed and steam heating molding begins, steam can enter the cavity formed by the closing of the fixed mold and the movable mold from the nanometer-scale holes and the air holes, thereby accelerating the heating speed in the cavity. After the foaming material in the cavity is formed, when the cooling water cools the outer peripheral wall of the fixed mold and the outer peripheral wall of the movable mold, the nanometer-scale holes provided on the inner peripheral wall at the top of the fixed mold and the movable mold can accelerate the cooling of the outer surface of the molded sole corresponding to this part in the cavity, so that the carbon plate inside the molded sole can be quickly cooled, avoiding the situation that the performance of the carbon plate is degraded or damaged due to long-term high temperature, and the vacuum assembly of the utility model can extract part of the cooling water that penetrates into the cavity from the nanometer-scale holes, so that the cavities of the fixed mold and the movable mold remain dry, which is convenient for subsequent sole molding processing.

[0020] Secondly, the utility model has a movable mold frame and a fixed mold frame respectively corresponding to the fixed mold frame, and the mold cavities of the fixed mold and the movable mold are both provided with a plurality of elastic telescopic positioning parts for fixing the carbon plate. In this way, when the foamed particles in the cavity after the fixed mold and the movable mold are molded together are heated and expanded by steam, the carbon plate located in the middle of the cavity will be wrapped by the foamed particles and then formed as one piece. The molded sole has higher strength and the carbon plate and the sole are not easy to fall off.

[0021] Thirdly, in the device for molding soles of the utility model, multiple fixed molds and multiple movable molds can be installed in the fixed mold frame and the movable mold frame, so that multiple soles can be molded at one time, and the utility model can also be provided with a double-station fixed mold frame, thereby realizing continuous molding processing of soles, greatly improving the molding efficiency of soles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0023] Figure 2 It is a top view of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the fixed mold of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the movable mold of the utility model.

[0026] Figure 5 It is a schematic diagram of the structure of the movable mold and the fixed mold after the utility model is molded together.

[0027] Figure markings: 10-frame; 101-control console; 11-first slide rail; 12-second slide rail; 13-vacuum port; 14-drain port; 15-water inlet; 16-steam port; 17-air inlet; 20-fixed mold frame; 21-fixed mold; 211-air hole; 212-feeding port; 213-limiting protrusion; 30-movable mold frame; 31-movable mold; 311-elastic telescopic protrusion; 312-limiting groove; 401-positioning column; 4011-circular end; 402-positioning pin; 403-blind hole; 404-nanoscale hole; 50-vacuum assembly; 60-barrel; 601-barrel discharge port; 602-barrel feeding pipe. DETAILED DESCRIPTION

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0029] Reference Figures 1 to 5A shoe sole forming device with in-mold inserts and popcorn foam particles integrally formed includes a frame 10, a fixed mold frame 20 which can be translated is arranged in the frame 10, the translation direction of the fixed mold frame 20 in the frame 10 is the left and right direction, a movable mold frame 30 which can approach or move away from the fixed mold frame 20 is arranged above the fixed mold frame 20, a fixed mold 21 is installed in the fixed mold frame 20, a movable mold 31 is installed in the movable mold frame 30, the movable mold 31 is adapted to the fixed mold 21, and when the movable mold frame 30 is fitted with the fixed mold frame 20, a cavity for sole foaming forming is formed between the movable mold 31 and the fixed mold 21. The fixed mold 21 and the movable mold 31 are both integrally formed by 3D printing, and the printing material is preferably a high-temperature resistant material. The inner circumferential wall at the top of the mold cavity of the fixed mold 21 and the inner circumferential wall at the top of the mold cavity of the movable mold 31 are both provided with a plurality of nano-scale holes 404 that are arranged through and can allow steam or water to pass through, and the mold cavities of the movable mold 31 and the fixed mold 21 are both convexly provided with a plurality of elastic telescopic positioning parts for fixing the carbon plate, and the mold cavity of the fixed mold 21 is provided with a plurality of air holes 211 for steam to pass through and a feed port 212 for feeding, and the air holes 211 are regular hexagonal air holes composed of a plurality of small holes, and one side of the frame 10 is provided with a vacuum assembly 50 that is connected to the plurality of the above-mentioned air holes 211 and can evacuate the cavity, and the other side is provided with a control console 101.

[0030] The control console 101 is used to control various components in the frame 10. In order to improve the sealing performance of the fixed mold frame 20 and the movable mold frame 30 after being joined together, a sealing strip for sealing can also be provided at the contact edge of the fixed mold frame 20 and the movable mold frame 30. The sealing strip is preferably made of a high-temperature resistant material. In this embodiment, a plurality of fixed molds 21 can be installed in the fixed mold frame 20, and a plurality of movable molds 31 can be installed in the movable mold frame 30. In this way, a plurality of soles can be formed at one time during processing, and the forming efficiency is higher.

[0031] It should be noted here that the movable mold frame 30 can be moved up and down in the frame 10 through the cooperation of guide columns and hydraulic cylinders. This is a technical means well known to those skilled in the art, so it will not be described in detail here.

[0032] Reference Figures 1 to 5In this embodiment, the nanometer-scale holes 404 are respectively arranged at the top of the inner peripheral wall of the fixed mold 21 cavity and the top of the inner peripheral wall of the movable mold 31 cavity. When the fixed mold 21 and the movable mold 31 are molded, the nanometer-scale holes 404 are located in the middle of the fixed mold 21 and the movable mold 31 after the molds are closed, that is, located at the junction of the fixed mold 21 and the movable mold 31, and the total area of ​​the nanometer-scale holes 404 accounts for 1 / 2 or 1 / 3 of the sum of the cavity depth of the fixed mold 21 and the cavity depth of the movable mold 31. During operation, the carbon plate is first installed on the elastic telescopic positioning piece set in the mold cavity of the fixed mold 21, and then the movable mold 31 is molded together with the fixed mold 21 to form a cavity for sole foaming. At this time, a plurality of nanometer-scale holes 404 are opened on the surrounding wall of the cavity at the same height as the carbon plate. In this way, when the fixed mold 21 and the movable mold 31 are cooled, the nanometer-scale holes 404 can improve the cooling efficiency of the carbon plate wrapped by the molded sole in the cavity, thereby avoiding the situation where the carbon plate is degraded or damaged due to untimely cooling.

[0033] Reference Figures 1 to 5 In this embodiment, limiting protrusions 213 are convexly provided at both ends of the fixed mold 21, and limiting grooves 312 are concavely provided at both ends of the movable mold 31. When the movable mold 31 is molded with the fixed mold 21, the limiting protrusions 213 of the fixed mold 21 are located in the limiting grooves of the movable mold 31. Through such a setting, when the movable mold 31 is molded with the fixed mold 21, it can play an auxiliary positioning effect to prevent the movable mold 31 from deviating from the fixed mold 21.

[0034] Reference Figures 1 to 4 The elastic telescopic positioning member includes a plurality of positioning posts 401 penetrating the mold cavity of the movable mold 31 and the mold cavity of the fixed mold 21. The ends of the plurality of positioning posts 401 are all convexly provided with a circular end 4011. The diameter of the circular end 4011 is smaller than the diameter of the positioning post 401, so that the carbon plate can be fixed more stably. It should be noted here that a spring is provided at the bottom of the positioning post 401. When the movable mold 31 and the fixed mold 21 are molded together to start foaming molding, the spring is compressed to make the positioning post 401 retract toward the bottom of the mold cavity of the fixed mold 21 and the bottom of the mold cavity of the movable mold 31. When the movable mold 31 is away from the fixed mold 21, the spring is compressed to make the positioning post 401 retract toward the bottom of the mold cavity of the fixed mold 21 and the bottom of the mold cavity of the movable mold 31. When the mold 21 is formed, the positioning column 401 rebounds under the action of the spring; the carbon plate used in the utility model is concavely provided with positioning holes on both sides corresponding to the positioning columns 401 arranged in the mold cavity of the fixed mold 21 and the movable mold 31. When fixing the carbon plate, it is only necessary to align the positioning holes set in the carbon plate with the positioning columns 401 set in the mold cavity of the fixed mold 21 to achieve fixation. In this way, when the sole is foamed, the carbon plate can be wrapped by the foamed particles, so that the carbon plate and the foamed particles are completely combined with the foamed particles, the firmness is stronger, and it is not easy to cause the sole to fall off due to loose glue bonding.

[0035] Reference Figures 1 to 4A first slide rail 11 lying horizontally along the left and right directions is provided in the frame 10, and at least two of the above-mentioned fixed mold frames 20 are installed on the first slide rail 11, and second slide rails 12 lying horizontally along the left and right directions are provided on the left and right sides of the top of the frame 10, and a material barrel 60 that can be translated left and right is installed on the two second slide rails 12, and a material barrel discharge port 601 is provided on the opposite side of the two material barrels 60, and the two material barrel discharge ports 601 are connected with a material barrel feeding pipe 602, and the ends of the two material barrel feeding pipes 602 are respectively connected with the two above-mentioned fixed mold frames 20, and a material feeding pipeline (not shown in the figure) is provided in the two above-mentioned fixed mold frames 20, and the feeding port of the material feeding pipeline is connected with the material barrel feeding pipe 602, and the feeding port thereof is respectively connected with the feeding ports 212 of multiple fixed molds 21, so as to supply material to the cavity formed by the fixed mold 21 and the movable mold 31.

[0036] It should be noted here that the movement of the fixed mold frame 20 on the first slide rail 11 and the movement of the barrel 60 on the second slide rail 12 can be achieved by a motor-driven screw rod. This is an existing conventional technical means, so it will not be elaborated here and is not marked in the figure.

[0037] Reference Figures 1 to 4 At least one elastic telescopic protrusion 311 for demoulding is convexly provided in the mold cavity of the movable mold 31. The elastic telescopic protrusion 311 is vertically arranged, and a plurality of air holes 211 are opened on the top surface of the elastic telescopic protrusion 311. Through such an arrangement, when the movable mold frame 30 drives the movable mold 31 to separate from the fixed mold 21, the elastic telescopic protrusion 311 rebounds under the action of a spring (not shown in the figure), which can assist in demoulding, making it easier to take the molded sole out of the mold after molding, and the air holes 211 opened on the top surface of the elastic telescopic protrusion 311 can also allow steam to enter during steam heating or to evacuate the cavity through the vacuum assembly 50.

[0038] Reference Figures 1 to 4 The outer walls of the movable mold 31 and the fixed mold 21 are densely covered with a plurality of blind holes 403 for cooling water or steam to pass through, and the blind holes 403 are located at the lower part of the nanoscale holes 404. When the cavity after the movable mold 31 and the fixed mold 21 are molded together is heated or cooled by steam or cooling water, the blind holes 403 densely covered on the outer walls of the movable mold 31 and the fixed mold 21 can increase the heating rate or cooling rate of the cavity, thereby making the quality of the molded sole more stable.

[0039] Reference Figures 1 to 4 The vacuum assembly 50 includes a vacuum tank and a vacuum pump. A vacuum port 13 is provided at the bottom of the frame. The vacuum tank is connected to the vacuum port 13 through a vacuum hose (not shown in the figure) and can vacuum the cavity after the fixed mold 21 and the movable mold 31 are molded together. Figures 1 to 4A drain port 14 is provided below the vacuum port 13 on one side of the frame 10, and the drain port 14 is used to discharge cooling water; a water inlet 15 for connecting external cooling water is provided on the front side of the top of the frame 10, and a steam port 16 for connecting external steam is provided on the rear side of the top of the frame 10, and the steam port 16 is connected to the fixed mold frame 20 and the movable mold frame 30 through a pipeline, and the water inlet is connected to the movable mold frame 30 through a pipeline, and the front and rear sides of the top of the frame 10 are respectively provided with air inlets 17 for external gas to enter, and the air inlets 17 are respectively connected to the movable mold frame 30 and the fixed mold frame 20. The frame 30 is connected to the fixed mold frame 20. Through such an arrangement, when the fixed mold 21 and the movable mold 31 are molded together, the fixed mold frame 20 and the movable mold frame 30 release steam to heat the outer walls of the fixed mold 21 and the movable mold 31, so as to promote the foaming molding of the foaming particles in the cavity; after the sole is foamed and molded, the movable mold frame 30 injects cooling water to cool the outer walls of the fixed mold 21 and the movable mold 31, thereby accelerating the demolding speed of the sole. When air cooling is performed, the external air cooling equipment can cool the cavity after the fixed mold 20 and the movable mold 30 are molded together through the air inlet 17.

[0040] Reference Figures 1 to 4 At least two positioning pins 402 are respectively provided at the front of the plurality of movable mold 31 cavities and the front of the plurality of fixed mold 21 cavities. The positioning pins 402 can not only assist in positioning during the molding of the sole, but also control the size of the sole during molding and reduce size deviation.

[0041] Reference Figures 1 to 5 During the molding process, the carbon plate is first fixed on the positioning column 401 of the fixed mold 21, and then the material is injected. The movable mold frame 30 is driven to approach the fixed mold frame 20 through the control console 101, so that the movable mold 31 and the fixed mold 21 are pre-molded. After the pre-molding, the gap between the movable mold 31 and the fixed mold 21 is 1mm-3mm, and then the barrel 60 injects the foaming particles from the feed port 212 of the fixed mold 21 into the cavity formed after the fixed mold 21 and the movable mold 31 are molded.

[0042] Then, preheating is performed, and the external steam released through the movable mold frame 30 and the fixed mold frame 20 is used to preheat the cavity formed after the movable mold 31 and the fixed mold 21 are pre-molded. The preheating temperature is 130℃-180℃, the preheating time is 10s-45s, and the preheating pressure is 0.8bar-1.5bar. In this embodiment, the preheating temperature is preferably 150℃-160℃, and the preheating time is preferably 15s-30s. The preheating step can melt the plastic film on the surface of the carbon plate to facilitate subsequent welding with the foamed particles. The mold is locked after the preheating is completed.

[0043] Further penetration heating is performed, and the external steam released through the movable mold frame 30 and the fixed mold frame 20 is used to heat the cavity formed after the movable mold 31 and the fixed mold 21 are locked. The penetration heating temperature is 130°C-180°C, the heating time is 90s-135s, and the heating pressure is 1.4bar-1.75bar. In this embodiment, the penetration heating temperature is preferably 150°C-160°C, and the heating time is preferably 110s-125s.

[0044] Further heating is performed, and the movable mold frame 30 and the fixed mold frame 20 release the connected external steam to heat the movable mold 31 and the fixed mold 21, the heating temperature is 130℃-180℃, the heating time is 30s-70s, and the heating pressure is 1.3bar-1.6bar. In this process, part of the steam will enter the cavity through the air holes 211 set in the mold cavity of the fixed mold 21 and the air holes 211 set on the top surface of the elastic telescopic protrusion 311 of the mold cavity of the movable mold 31, so as to promote the foaming particles in the cavity to foam and form, and then the carbon plate is also wrapped in the molded sole. In this embodiment, the heating temperature is preferably 150℃-160℃, and the heating time is preferably 45s-65s.

[0045] After heating is completed, water cooling is performed, and cooling water is injected into the movable mold frame 30 to cool the outer walls of the movable mold 31 and the fixed mold 21. The cooling time is 60s-120s. Since a number of nanoscale holes 404 are provided on the peripheral wall at the same height as the cavity and the carbon plate, the cooling speed of the molded sole in contact with the peripheral wall of the nanoscale holes 404 is increased, and the cooling speed of the carbon plate wrapped in the sole is further increased. In this process, a little cooling water will penetrate into the cavity from the nanoscale holes 404. In this embodiment, the cooling time is preferably 80s-110s.

[0046] Then, air cooling is performed, and external air connected to the movable mold frame 30 and the fixed mold frame 20 is injected into the cavity for air cooling. The cooling time is 5s-15s, so that the moisture in the cavity can be discharged.

[0047] Finally, the console 101 starts the vacuum assembly 50, the vacuum pressure is 0.3MPa-0.9MPa, and the vacuum time is 15s-45s. The moisture that has penetrated into the cavity is extracted through the air holes 211 set in the cavity of the fixed mold 21 and the air holes 211 set on the top surface of the elastic retractable protrusion 311 of the cavity of the movable mold 31, so that the cavity remains dry. In this embodiment, the vacuum pressure is preferably 0.4MPa-0.7MPa, and the vacuum time is preferably 20s-30s.

[0048] The utility model has a movable mold frame 30 and a fixed mold frame 20 respectively correspondingly provided with a fixed mold 21 and a movable mold 31, and the sole molding efficiency is high. The inner peripheral wall of the top of the mold cavity of the fixed mold 21 and the inner peripheral wall of the top of the mold cavity of the movable mold 31 are provided with a plurality of nanometer-scale holes 404 for steam or water to pass through, and a feed port 212 for feeding and a plurality of air holes 211 for steam to pass through are provided at the bottom of the mold cavity of the fixed mold 21. When the fixed mold 21 and the movable mold 31 are molded together and steam heating molding is started, steam can enter the cavity formed by the mold combination of the fixed mold 21 and the movable mold 31 through the nanometer-scale holes 404 and the air holes, thereby accelerating the temperature rise speed in the cavity; After the foaming material in the body is formed, when the cooling water cools the outer peripheral wall of the fixed mold 21 and the outer peripheral wall of the movable mold 31, the nanometer-scale holes 404 set on the inner peripheral wall of the top of the fixed mold 21 and the movable mold 31 can accelerate the cooling of the outer surface of the molded sole corresponding to this part in the cavity, so that the carbon plate inside the molded sole can be cooled quickly, avoiding the performance degradation or damage of the carbon plate due to long-term high temperature, and the air cooling step and vacuum assembly of the present invention can discharge part of the cooling water that penetrates into the cavity from the nanometer-scale holes 404, so that the cavity of the fixed mold 21 and the movable mold 31 remains dry, which is convenient for subsequent sole molding processing.

[0049] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A shoe sole forming device with in-mold inserts and popcorn foam particles, characterized in that: The invention comprises a frame, wherein a fixed mold frame which can be translated is arranged in the frame, and the translation direction of the fixed mold frame in the frame is the left-right direction, and a movable mold frame which can approach or move away from the fixed mold frame is arranged above the fixed mold frame, and a fixed mold and a movable mold are respectively installed in the fixed mold frame and the movable mold frame, and the fixed mold and the movable mold are both integrally formed by 3D printing, and the inner peripheral wall at the top of the mold cavity of the fixed mold and the inner peripheral wall at the top of the mold cavity of the movable mold are both provided with a plurality of nanometer-scale holes which are penetrated and can allow steam or water to pass through, and the mold cavities of the fixed mold and the movable mold are both provided with a plurality of elastic telescopic positioning parts for fixing carbon plates, and the bottom of the mold cavity of the fixed mold is provided with a feeding port for feeding materials and a plurality of air holes for steam to pass through, and a vacuuming component is also arranged on one side of the frame, and the vacuuming component is connected with the plurality of air holes and vacuums the cavity formed after the fixed mold and the movable mold are combined.

2. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: The total area of ​​the nanoscale holes accounts for 1 / 2 or 1 / 3 of the sum of the depth of the fixed mold cavity and the depth of the movable mold cavity.

3. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: The elastic telescopic positioning member includes a plurality of positioning columns penetrating the movable mold cavity and the fixed mold cavity, and the ends of the plurality of positioning columns are all convexly provided with circular ends, and the diameter of the circular ends is smaller than the diameter of the positioning columns.

4. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: A first slide rail lying horizontally along the left-right direction is provided in the frame body, and at least two fixed mold frames are installed on the first slide rail; second slide rails lying horizontally along the left-right direction are provided on the left and right sides of the top of the frame body, and barrels that can be translated left and right are installed on the two second slide rails, and discharge ports are provided on the opposite sides of the two barrels, and the two discharge ports are connected to barrel feeding pipes, and the ends of the two barrel feeding pipes are respectively connected to the two fixed mold frames.

5. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: The peripheral walls of the plurality of movable molds and the plurality of fixed molds are densely covered with a plurality of blind holes for cooling water or steam to pass through.

6. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: At least one elastic telescopic protrusion for demoulding is convexly arranged in the mold cavity of the movable mold, the elastic telescopic protrusion is vertically arranged, and a plurality of air holes are opened on the top surface of the elastic telescopic protrusion.

7. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: The vacuum pump assembly comprises a vacuum tank and a vacuum pump. A vacuum port is provided at the bottom of the frame. The vacuum tank and the vacuum port are connected via a vacuum hose.

8. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: The mold cavity of the movable mold and the mold cavity of the fixed mold are respectively protruded with at least two positioning pins.

9. The in-mold insert and popcorn foam particle integrated sole forming equipment according to claim 1, characterized in that: The pores are regular hexagonal deformed pores composed of a plurality of pores.

Images