A forming device for a soft shoe sole

By combining mold station switching and multiple cooling methods, the problem of low production efficiency and low automation of soft sole molding devices is solved, achieving efficient and automated sole molding.

CN224323426UActive Publication Date: 2026-06-05GUANGDONG ROTHYS FOOTWEAR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG ROTHYS FOOTWEAR CO LTD
Filing Date
2025-09-09
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing soft sole molding equipment uses only one heating, pressurizing, and cooling method, resulting in low production efficiency and automation, making it difficult to meet the needs of large-scale production.

Method used

The system employs four sets of upper and lower mold bases in conjunction with a rotating base to achieve precise switching of the mold at different workstations. It combines a hydraulic press and a hydraulic cylinder to drive the hot press base to provide precise pressure, and uses a cooling coil and atomizing nozzle for cooling. An electric push rod and a vacuum suction cup assist in unloading.

Benefits of technology

It improves production efficiency, ensures uniform sole density, shortens molding time, enhances automation, prevents deformation, and increases product qualification rate and service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224323426U_ABST
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Abstract

The utility model discloses a forming device of soft shoe sole, specifically relates to the shoe sole manufacturing technical field, and including the base, the upper end fixedly connected with support frame of base, the upper end rotationally connected with rotary seat of support frame, the outside fixedly connected with lower mould seat of rotary seat, the upper end rotationally connected with upper mould seat of lower mould seat, the inside fixedly connected with cooling coil pipe of lower mould seat, the left side fixedly connected with oil press of base upper end, the inside of oil press is provided with two heat pressure seats that are symmetrical up and down, the rear side fixedly connected with water cooling frame of base upper end, the upper end fixedly connected with water spray pipe of water cooling frame inner wall, be provided with atomizing spray head at the lower end of water spray pipe, the right side fixedly connected with blanking frame of base upper end. The utility model discloses through setting four groups upper and lower mould seat, and the accurate switching of mould in different stations is realized to cooperation rotary seat, makes the feeding, pressurizing heating, cooling shaping and blanking procedure synchronous, improves production efficiency, satisfies large -scale production demand.
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Description

Technical Field

[0001] This utility model relates to the field of shoe sole manufacturing technology, and more specifically, to a molding device for soft shoe soles. Background Technology

[0002] In the footwear industry, soft soles made of materials such as rubber, silicone, and EVA are in increasing market demand due to their excellent comfort. In the production process of soft soles, the performance of the molding device directly affects product quality and production efficiency. The molding process needs to achieve precise material molding, uniform curing, and non-destructive demolding.

[0003] Existing soft sole molding equipment has independent processes, which makes it difficult to meet the needs of large-scale production. The heating, pressurization and cooling methods are singular, the sole molding time is long, the overall production efficiency is low, the mold is prone to sticking and jamming when the material is unloaded, the operation is inconvenient, the degree of automation is low, and it is easy to cause sole deformation or damage, which affects the product qualification rate.

[0004] In summary, to achieve efficient production of soft shoe soles, it is necessary to address the problems of existing soft shoe sole molding devices, such as their simplistic heating, pressurization, and cooling methods, resulting in low production efficiency and automation. This will enable efficient molding of soft shoe soles. Utility Model Content

[0005] The present invention provides a molding device for soft shoe soles, which aims to solve the problem that existing molding devices for soft shoe soles have a single heating, pressurizing and cooling method, resulting in low production efficiency and low degree of automation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molding device for a soft shoe sole, comprising a base, a support frame fixedly connected to the upper end of the base, a rotating seat rotatably connected to the upper end of the support frame, a lower mold base fixedly connected to the outer side of the rotating seat, an upper mold base rotatably connected to the upper end of the lower mold base, a cooling coil fixedly connected inside the lower mold base, a hydraulic press fixedly connected to the left side of the upper end of the base, two hot press seats symmetrically arranged inside the hydraulic press, a water cooling frame fixedly connected to the rear side of the upper end of the base, a water spray pipe fixedly connected to the upper end of the inner wall of the water cooling frame, an atomizing nozzle provided at the lower end of the water spray pipe, and a material unloading rack fixedly connected to the right side of the upper end of the base, with a vacuum suction cup provided inside the material unloading rack.

[0007] In a preferred embodiment, a rotary motor is fixedly connected to the upper end of the inner wall of the support frame, and the output shaft of the rotary motor is fixedly connected to the rotating seat. The rotary motor is used to drive the rotating seat to rotate.

[0008] In a preferred embodiment, four lower mold bases are arranged in a circular array, an electric heating wire is installed inside the upper mold base, a cooling circulating water tank is fixedly connected to the upper end of the rotating base, and four pipe fittings are fixedly connected to the outside of the cooling circulating water tank.

[0009] In a preferred embodiment, two cooling coils are symmetrically arranged. An inlet pipe and two outlet pipes are fixedly connected to one end of the lower mold base near the rotating seat. One end of the inlet pipe is fixedly connected to the inlet of the cooling coil, and the outlet of the cooling coil is fixedly connected to the corresponding outlet pipe. The other ends of the inlet pipe and the outlet pipe are fixedly connected to the corresponding connectors via flexible hoses.

[0010] In a preferred embodiment, hydraulic cylinder one and hydraulic cylinder two are fixedly connected to the upper and lower ends of the inner wall of the hydraulic press. The output ends of hydraulic cylinder one and hydraulic cylinder two are fixedly connected to the corresponding hot press base. Hydraulic cylinder one and hydraulic cylinder two are used to drive the hot press base to move up and down.

[0011] In a preferred embodiment, the rear end of the water cooling rack is fixedly connected to an inlet water distribution pipe, and three water spray pipes are arranged at equal intervals. The rear end of each water spray pipe is connected to the inlet water distribution pipe. Each group of atomizing nozzles has four nozzles arranged at equal intervals, and a water collection trough is provided at the lower end of the inner wall of the water cooling rack.

[0012] In a preferred embodiment, a lifting cylinder is fixedly connected to the upper end of the inner wall of the unloading rack, and the output end of the lifting cylinder is fixedly connected to a vacuum suction cup. The lifting cylinder is used to drive the vacuum suction cup to move up and down. An electric push rod is fixedly connected to the lower end of the inner wall of the unloading rack, and a rubber top block is fixedly connected to the output end of the electric push rod. The rubber top block is in contact with the upper mold base.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model sets up four sets of upper and lower mold bases, which, together with the rotating base, enable precise switching of the mold at different work positions. This allows the feeding, pressurizing and heating, cooling and shaping, and unloading processes to be carried out simultaneously, improving production efficiency and meeting the needs of large-scale production. During unloading, the electric push rod drives the rubber top block to automatically push open the upper mold base, and the vacuum suction cup completes the material removal. The high degree of automation avoids deformation caused by manual operation, improves the product qualification rate, and ensures production continuity.

[0015] This invention optimizes the pressurization, heating, and cooling processes. The hydraulic press and cylinder drive the hot press base, ensuring precise pressure control. It can provide stable and accurate pressure according to the needs of different shoe sole materials, ensuring uniform sole density. Combined with internal cooling of the cooling coil and external cooling of the atomizing nozzle, the cooling efficiency is improved through internal and external synergy, shortening the sole shaping time and increasing production efficiency. The combination of these two methods results in better sole molding quality, significantly improved softness and service life, meeting the production needs of different materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the rotating seat structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the water-cooled frame structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the material unloading rack structure of this utility model.

[0021] The attached diagram is labeled as follows: 1. Base; 2. Support frame; 3. Rotating seat; 4. Lower mold base; 5. Upper mold base; 6. Cooling coil; 7. Hydraulic press; 8. Hot press base; 9. Water cooling frame; 10. Water spray pipe; 11. Atomizing nozzle; 12. Unloading rack; 13. Vacuum suction cup; 14. Rotary motor; 15. Cooling circulating water tank; 16. Connecting pipe seat; 17. Liquid inlet pipe; 18. Liquid outlet pipe; 19. Hydraulic cylinder one; 20. Hydraulic cylinder two; 21. Inlet water distribution pipe; 22. Water collection tank; 23. Lifting cylinder; 24. Electric push rod; 25. Rubber top block. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5 A molding device for a soft shoe sole includes a base 1, a support frame 2 fixedly connected to the upper end of the base 1, a rotating seat 3 rotatably connected to the upper end of the support frame 2, a lower mold seat 4 fixedly connected to the outer side of the rotating seat 3, an upper mold seat 5 rotatably connected to the upper end of the lower mold seat 4, a cooling coil 6 fixedly connected inside the lower mold seat 4, a hydraulic press 7 fixedly connected to the left side of the upper end of the base 1, two hot press seats 8 symmetrically arranged inside the hydraulic press 7, a water cooling frame 9 fixedly connected to the rear side of the upper end of the base 1, a water spray pipe 10 fixedly connected to the upper end of the inner wall of the water cooling frame 9, an atomizing nozzle 11 provided at the lower end of the water spray pipe 10, and a material unloading rack 12 fixedly connected to the right side of the upper end of the base 1, with a vacuum suction cup 13 provided inside the material unloading rack 12.

[0024] It should be noted that the support frame 2 provides installation support for the rotating seat 3. The hot press seat 8 is made of heat-resistant alloy material and has a heating element inside. It is equipped with a temperature sensor to monitor the temperature of the hot press seat 8 in real time and automatically adjusts the heating power according to the material of the shoe sole to ensure stable hot pressing temperature. The atomizing nozzle 11 can atomize water into fine water droplets, increase the contact area with the mold, and improve cooling efficiency.

[0025] Refer to the instruction manual appendix Figure 3 A rotating motor 14 is fixedly connected to the upper end of the inner wall of the support frame 2. The output shaft of the rotating motor 14 is fixedly connected to the rotating seat 3. The rotating motor 14 is used to drive the rotating seat 3 to rotate.

[0026] It should be noted that the rotating motor 14 drives the rotating seat 3 to rotate 90 degrees in sequence, so as to realize the precise switching of the mold between different work stations and realize continuous operation.

[0027] Refer to the instruction manual appendix Figure 3 The lower mold base 4 is arranged in a circular array of four, the upper mold base 5 is equipped with an electric heating wire, the upper end of the rotating base 3 is fixedly connected to a cooling circulating water tank 15, and the outer side of the cooling circulating water tank 15 is fixedly connected to four pipe fittings 16.

[0028] It should be noted that the lower mold base 4 and the upper mold base 5 are made of aluminum alloy, which has good thermal conductivity. The heating wire generates heat when energized, providing a heat source for shoe sole molding. The cooling circulating water tank 15 is used to store and circulate coolant.

[0029] Refer to the instruction manual appendix Figure 3 There are two cooling coils 6 symmetrically arranged. The end of the lower mold base 4 near the rotating seat 3 is fixedly connected to the liquid inlet pipe 17 and two liquid outlet pipes 18. One end of the liquid inlet pipe 17 is fixedly connected to the inlet of the cooling coil 6, and the outlet of the cooling coil 6 is fixedly connected to the corresponding liquid outlet pipe 18. The other ends of the liquid inlet pipe 17 and the liquid outlet pipe 18 are respectively fixedly connected to the corresponding pipe fitting 16 through hoses.

[0030] It should be noted that the cooling coil 6 is made of copper, which has good thermal conductivity. The coolant is delivered to the inlet pipe 17 and the cooling coil 6 through the connector 16 and the hose, and discharged from the outlet pipe 18, forming a complete cooling circulation loop, which carries away the heat of the lower mold base 4 to achieve cooling.

[0031] Refer to the instruction manual appendix Figure 2 Hydraulic cylinder 19 and hydraulic cylinder 20 are fixedly connected to the upper and lower ends of the inner wall of the hydraulic press 7. The output ends of hydraulic cylinder 19 and hydraulic cylinder 20 are fixedly connected to the corresponding hot press base 8. Hydraulic cylinder 19 and hydraulic cylinder 20 are used to drive the hot press base 8 to move up and down.

[0032] It should be noted that the extension and retraction of hydraulic cylinder 19 and hydraulic cylinder 20 drive the two hot press seats 8 to fit against the mold, thereby pressurizing and heating the mold. The pressure control is highly accurate and can meet the molding requirements of shoe soles made of different materials.

[0033] Refer to the instruction manual appendix Figure 4The water cooling rack 9 is fixedly connected to the rear end of the water inlet pipe 21. There are three water spray pipes 10 arranged at equal intervals. The rear end of each water spray pipe 10 is connected to the water inlet pipe 21. There are four atomizing nozzles 11 arranged at equal intervals in each group. A water collection trough 22 is opened at the lower end of the inner wall of the water cooling rack 9.

[0034] It should be noted that the rear end of the water inlet pipe 21 is connected to an external water source. Water is sprayed onto the mold from the atomizing nozzle 11 through the water spray pipe 10 to achieve cooling. The water collection tank 22 is used to collect the wastewater after cooling and can be discharged in time to avoid water accumulation.

[0035] Refer to the instruction manual appendix Figure 5 A lifting cylinder 23 is fixedly connected to the upper end of the inner wall of the unloading rack 12. The output end of the lifting cylinder 23 is fixedly connected to the vacuum suction cup 13. The lifting cylinder 23 is used to drive the vacuum suction cup 13 to move up and down. An electric push rod 24 is fixedly connected to the lower end of the inner wall of the unloading rack 12. A rubber top block 25 is fixedly connected to the output end of the electric push rod 24. The rubber top block 25 is in contact with the upper mold base 5.

[0036] It should be noted that the electric push rod 24 pushes the rubber top block 25 to open the upper mold base 5 for easy material removal. The vacuum suction cup 13 is connected to the external vacuum system. The vacuum suction cup 13 is driven to move up and down by the extension and retraction of the lifting cylinder 23 to achieve the adsorption and material removal of the finished shoe sole.

[0037] Working principle: The raw material for the shoe sole is placed in the lower mold base 4 to complete the loading. The rotating motor 14 drives the rotating seat 3 to rotate 90 degrees, rotating the lower mold base 4 and the upper mold base 5 containing the raw material into the hydraulic press 7. The hydraulic cylinder 19 and the hydraulic cylinder 20 drive the hot press base 8 to clamp the mold. The heating wire in the upper mold base 5 and the heating element in the hot press base 8 are heated synchronously, so that the raw material is formed in the mold. After heating and pressurization, the rotating seat 3 rotates to move the mold into the water cooling rack 9. Water is sprayed onto the mold from the water spray pipe 10 through the atomizing nozzle 11. At the same time, the coolant is cooled by the cooling coil 6 to cool the lower mold base 4, which quickly cools down and accelerates the shaping of the shoe sole. After cooling, the rotating seat 3 rotates to move the mold into the unloading rack 12. The electric push rod 24 pushes the rubber top block 25 to open the upper mold base 5. The lifting cylinder 3 drives the vacuum suction cup 13 to descend. The vacuum suction cup 13 generates negative pressure to adsorb the finished shoe sole and remove the shoe sole. The cycle continues.

[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A molding device for a soft shoe sole, characterized in that: It includes a base (1), a support frame (2) fixedly connected to the upper end of the base (1), a rotating seat (3) rotatably connected to the upper end of the support frame (2), a lower mold seat (4) fixedly connected to the outer side of the rotating seat (3), an upper mold seat (5) rotatably connected to the upper end of the lower mold seat (4), a cooling coil (6) fixedly connected inside the lower mold seat (4), a hydraulic press (7) fixedly connected to the left side of the upper end of the base (1), two hot press seats (8) symmetrically arranged inside the hydraulic press (7), a water cooling frame (9) fixedly connected to the rear side of the upper end of the base (1), a water spray pipe (10) fixedly connected to the upper end of the inner wall of the water cooling frame (9), an atomizing nozzle (11) provided at the lower end of the water spray pipe (10), a material unloading rack (12) fixedly connected to the right side of the upper end of the base (1), and a vacuum suction cup (13) provided inside the material unloading rack (12).

2. The molding apparatus for a soft shoe sole according to claim 1, characterized in that: A rotating motor (14) is fixedly connected to the upper end of the inner wall of the support frame (2). The output shaft of the rotating motor (14) is fixedly connected to the rotating seat (3). The rotating motor (14) is used to drive the rotating seat (3) to rotate.

3. The molding apparatus for a soft shoe sole according to claim 1, characterized in that: The lower mold base (4) is arranged in a ring array of four, the upper mold base (5) is equipped with heating wires, the upper end of the rotating base (3) is fixedly connected to a cooling circulating water tank (15), and the outer side of the cooling circulating water tank (15) is fixedly connected to four pipe fittings (16).

4. The molding apparatus for a soft shoe sole according to claim 3, characterized in that: There are two symmetrical cooling coils (6). The lower mold base (4) near the rotating seat (3) is fixedly connected to an inlet pipe (17) and two outlet pipes (18). One end of the inlet pipe (17) is fixedly connected to the inlet of the cooling coil (6), and the outlet of the cooling coil (6) is fixedly connected to the corresponding outlet pipe (18). The other ends of the inlet pipe (17) and the outlet pipe (18) are fixedly connected to the corresponding connector (16) through hoses.

5. The molding apparatus for a soft shoe sole according to claim 1, characterized in that: Hydraulic cylinder one (19) and hydraulic cylinder two (20) are fixedly connected to the upper and lower ends of the inner wall of the hydraulic press (7). The output ends of hydraulic cylinder one (19) and hydraulic cylinder two (20) are fixedly connected to the corresponding hot press base (8). Hydraulic cylinder one (19) and hydraulic cylinder two (20) are used to drive the hot press base (8) to move up and down.

6. The molding apparatus for a soft shoe sole according to claim 1, characterized in that: The water cooling rack (9) is fixedly connected to the rear end of the water inlet pipe (21), and three water spray pipes (10) are arranged at equal intervals. The rear end of each water spray pipe (10) is connected to the water inlet pipe (21). Each group of atomizing nozzles (11) is distributed at equal intervals with four nozzles. A water collection trough (22) is opened at the lower end of the inner wall of the water cooling rack (9).

7. The molding apparatus for a soft shoe sole according to claim 1, characterized in that: A lifting cylinder (23) is fixedly connected to the upper end of the inner wall of the unloading rack (12). The output end of the lifting cylinder (23) is fixedly connected to the vacuum suction cup (13). The lifting cylinder (23) is used to drive the vacuum suction cup (13) to move up and down. An electric push rod (24) is fixedly connected to the lower end of the inner wall of the unloading rack (12). A rubber top block (25) is fixedly connected to the output end of the electric push rod (24). The rubber top block (25) is in contact with the upper mold base (5).