Mould for insole forming and processing equipment
By using plastic molds instead of metal molds, the production cost of insoles has been reduced and the environmental friendliness has been improved. At the same time, the cushioning and shock absorption performance of insoles has been enhanced, solving the problems of high cost and harmful gas emissions in existing technologies.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN BAOMIN SHOES CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
The current insole production process involves high costs for metal molds, requires heating chambers for processing, resulting in high costs and labor consumption, and also poses the problem of harmful gas emissions.
Plastic molds are used instead of metal molds, including bottom and top molds. Both bottom and top molds are plastic molds. The insole material is formed by pressing it together, avoiding heating and spraying release agents. Combined with the low-viscosity design of the plastic molds, the production process is simplified.
It reduces mold and labor costs, reduces harmful gas emissions, improves the environmental friendliness of production, and enhances the cushioning and shock absorption performance of the insoles.
Smart Images
Figure CN224183615U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of shoe insole processing equipment technology, and in particular to a mold and processing equipment for shoe insole molding. Background Technology
[0002] Insoles are widely used in the footwear industry, for health purposes, and for special functions; they are generally divided into two types: footwear factory-application insoles and market-commercial insoles. Footwear factory-application insoles are mainly designed to fit the outsole and midsole of shoes, creating a corresponding shape. Market-commercial insoles are products designed by developers and sold directly in the market.
[0003] Currently, insole manufacturers typically use metal molds for production. Specifically, a release agent is sprayed into a mold with two or more layers, then liquid insole material is poured in, the mold is closed, and the closed mold is placed in a heating chamber to heat the material, causing it to foam and solidify. However, metal molds for insoles are expensive, and the need for heating during processing leads to high costs and the generation of harmful gases. Even if the formula is adjusted to eliminate the need for heating, the original molds, due to their adhesive properties, still require workers to spray release agent onto each mold individually beforehand, consuming labor costs. Summary of the Invention
[0004] In order to reduce the production cost of insoles, this application provides a mold and processing equipment for insole molding.
[0005] On the one hand, the mold for molding insoles provided in this application adopts the following technical solution:
[0006] A mold for molding insoles includes a bottom mold and a top mold, both of which are plastic molds. The bottom mold includes a forefoot shell, a rearfoot shell, and an abutment portion. The forefoot shell is flat and connected to the rearfoot shell. The width of the connection between the forefoot shell and the rearfoot shell gradually decreases from the forefoot shell to the rearfoot shell. The abutment portion is connected around the periphery of the forefoot shell and the rearfoot shell. The top mold is adapted to the top side of the abutment portion.
[0007] By adopting the above technical solution, when it is necessary to produce shoe insoles, the shoe insoles raw materials with the prepared formula can be added to the forefoot shell and the heel shell. Then, the top mold is placed on top of the bottom mold, and the shoe insoles raw materials are formed under the action of pressing and mixing. This replaces the use of metal molds for production, reducing mold costs. Since both the bottom mold and the top mold are plastic molds with low viscosity, there is no need to spray release agent, thereby reducing labor costs.
[0008] Optionally, a rear foot stacked shell is provided between the rear foot shell and the abutment portion, the rear foot stacked shell surrounds the periphery of the rear foot shell, and the abutment portion is in the form of a streamlined smooth plate at the position corresponding to the connection between the front foot shell and the rear foot shell.
[0009] By adopting the above technical solution, the heel stack shell is placed between the heel shell and the contact part, which can increase the thickness of the heel part of the produced insole and improve the cushioning and shock absorption performance of the insole.
[0010] Optionally, the inner wall of the abutment portion is provided with a stepped loop, which connects the forefoot shell and the hindfoot stacked shell respectively.
[0011] By adopting the above technical solution, a circular stepped structure can be formed around the periphery of the finished insole, which facilitates cutting by workers.
[0012] Optionally, a positioning abutment is provided at the top of the hind foot shell, and a positioning insert is provided at the end of the positioning abutment.
[0013] By adopting the above technical solution, before injecting the insole raw material, shock-absorbing parts such as plastic blocks or rubber blocks can be inserted into the positioning blocks, so that the shock-absorbing parts are located inside the finished insole after molding, thereby improving the shock-absorbing function of the finished insole. After the insole is molded, it can be directly pulled out of the positioning blocks, making demolding convenient.
[0014] Optionally, the thickness of the forefoot shell and the hindfoot shell ranges from 2 to 5 mm.
[0015] By adopting the above technical solution, the forefoot shell and the rearfoot shell have sufficient hardness and strength to meet the molding requirements of the finished insole, and further control the mold cost.
[0016] Optionally, both the bottom mold and the top mold are PP / PE mixed plastic molds.
[0017] By adopting the above technical solution, the stickiness of the bottom mold and top mold to the finished insole can be reduced, the adhesion of the insole product can be reduced, and demolding can be facilitated.
[0018] Optionally, a ventilation channel is provided on the top side of the abutment portion, and the ventilation channel connects the inner side and the outer side of the abutment portion.
[0019] By adopting the above technical solution, the ventilation channel facilitates the discharge of gas from the mold during the foaming and molding of the insole.
[0020] On the other hand, the processing equipment for insole molding provided in this application adopts the following technical solution:
[0021] A processing device for molding insoles includes a processing table, in which a forefoot shell and a rearfoot shell are inserted into the processing table, an abutment portion is connected to the top side of the processing table, a processing frame is provided on the processing table, a mold closing drive is provided on the processing frame, a top mold is provided at the driving end of the mold closing drive, and the mold closing drive is used to close the top mold onto the abutment portion.
[0022] By adopting the above technical solution, during production, the insole material can be placed into the forefoot shell and the rearfoot shell, and the mold closing drive can be used to drive the top mold to close on the top side of the contact part, thereby forming the insole.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. When it is necessary to produce shoe insoles, the shoe insoles raw materials with the prepared formula can be added to the forefoot shell and the heel shell. Then, the top mold is placed on top of the bottom mold, and the shoe insoles raw materials are formed under the action of pressing and mixing. This replaces the use of metal molds for production, reducing mold costs. Since both the bottom mold and the top mold are plastic molds with low viscosity, there is no need to spray release agent, thereby reducing labor costs.
[0025] 2. Before injecting the insole raw material, shock-absorbing parts such as plastic blocks or rubber blocks can be inserted into the positioning blocks so that the shock-absorbing parts are located inside the finished insole after molding, thereby improving the shock absorption function of the finished insole. After the insole is molded, it can be directly removed from the positioning blocks, making demolding convenient.
[0026] 3. During production, the insole material can be placed into the forefoot shell and the rearfoot shell, and the mold closing drive can be used to drive the top mold to close on the top side of the contact part, thereby forming the insole. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.
[0028] Figure 2 This is a schematic diagram of the bottom mold in an embodiment of this application.
[0029] Figure 3 This is a schematic diagram of the processing equipment in the embodiments of this application.
[0030] Explanation of reference numerals in the attached figures:
[0031] 1. Bottom mold; 11. Front foot shell; 12. Rear foot shell; 13. Abutment part; 131. Countersunk hole; 132. Ventilation channel; 14. Rear foot stacked shell; 15. Stepped loop; 16. Positioning abutment; 17. Positioning insert; 2. Top mold; 3. Machining table; 31. Machining frame; 32. Mold closing drive component; 33. Detachment seat. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0033] This application discloses a mold for molding shoe insoles.
[0034] Reference Figure 1 and Figure 2 A mold for molding insoles includes a bottom mold 1 and a top mold 2, both of which are plastic molds. The bottom mold 1 includes a forefoot shell 11, a rearfoot shell 12, and an abutment portion 13. The number of forefoot shells 11 is not less than two; in this embodiment, there are two forefoot shells 11 arranged symmetrically. The number of rearfoot shells 12 is not less than two; in this embodiment, there are two rearfoot shells 12 arranged symmetrically. The interiors of both the forefoot shell 11 and the rearfoot shell 12 are concave. The foot shell 11 is flat. The outline of the forefoot shell 11 is the same as the outer outline of the forefoot part of the insole. The forefoot shell 11 is connected to the rearfoot shell 12. The width of the forefoot shell 11 is greater than the width of the rearfoot shell 12. The width of the connection between the forefoot shell 11 and the rearfoot shell 12 gradually decreases from the forefoot shell 11 to the rearfoot shell 12, and is narrowed inward on both sides. The abutment part 13 is connected around the outer periphery of the forefoot shell 11 and the rearfoot shell 12. The shape of the top mold 2 is adapted to the top side shape of the abutment part 13.
[0035] When producing insoles, the prepared insole raw materials can be poured into the forefoot shell 11 and the heel shell 12. The insole cloth is then placed on the bottom mold 1, and the top mold 2 is placed on top of the bottom mold 1. The insole raw materials are then pressed and mixed to form the insole. During the forming process, since both the bottom mold 1 and the top mold 2 are plastic molds, metal molds are not required, which saves on mold manufacturing or purchase costs. Heating is also not required. Furthermore, since the bottom mold 1 and the top mold 2 are plastic molds, they have very low viscosity, so there is no need to spray a release agent before processing, thus saving on labor costs. Since heating is not required, the amount of waste gas generated during processing can be reduced, which helps to reduce pollution and improve environmental friendliness.
[0036] A rear foot stacked shell 14 is provided between the rear foot shell 12 and the abutment portion 13. The rear foot stacked shell 14 surrounds the outer periphery of the rear foot shell 12. The bottom inner side of the rear foot stacked shell 14 is connected to the rear foot shell 12, and the top of the rear foot stacked shell 14 is connected to the inner wall of the abutment portion 13. The inner side wall of the rear foot stacked shell 14 is curved and sloping. The abutment portion 13 is a streamlined and smooth plate-like surface at the connection point between the front foot shell 11 and the rear foot shell 12.
[0037] During the insole processing, when the insole material is injected into the forefoot shell 11 and the rearfoot shell 12, the rearfoot overlapping shell 14 is located between the rearfoot shell 12 and the abutment part 13, which increases the thickness of the rearfoot part of the insole, making the thickness of the rearfoot part greater than that of the forefoot part, thus giving the produced insole a good cushioning performance in the rearfoot part.
[0038] The inner wall of the abutment portion 13 is provided with a stepped loop 15. The top side height of the stepped loop 15 is lower than the top side height of the abutment portion 13. The stepped loop 15 surrounds the outer periphery of the forefoot shell 11 and the hindfoot stacked shell 14. The stepped loop 15 connects the outer side wall of the forefoot shell 11 and the top outer side wall of the hindfoot stacked shell 14 respectively. The top side height of the stepped loop 15 is higher than the top side height of the forefoot shell 11 and the top side height of the hindfoot stacked shell 14.
[0039] After the insole material is formed, a ring-shaped stepped structure can be formed at position 15 of the stepped loop, which surrounds the final insole body and forms a clear boundary with the final insole body, making it easier for workers to cut.
[0040] A positioning post 16 is provided on the top side of the rear foot shell 12. The positioning post 16 is cylindrical. A positioning block 17 is provided at the end of the positioning post 16 away from the rear foot shell 12. The positioning block 17 is cylindrical. The cross-sectional size of the positioning post 16 is larger than the cross-sectional size of the positioning block 17. The positioning block 17 can be used to temporarily insert components embedded inside the insole during molding.
[0041] Before pouring the insole material into the forefoot shell 11 and rearfoot shell 12, shock-absorbing parts such as synthetic plastic blocks or rubber blocks with shock-absorbing properties can be temporarily inserted into the positioning insert 17. After the insole material is poured in and formed, the shock-absorbing parts are located inside the heel part of the insole, thereby improving the shock absorption function of the finished insole. After the insole is formed, the positioning insert 17 and the positioning abutment 16 will form an insertion relationship with the bottom side of the insole. Since the bottom mold 1 and the top mold 2 are both plastic molds, not metal molds, the positioning insert 17 and the positioning abutment 16 have basically no adhesiveness to the insole. The insole can be pulled out directly without damaging the insole. The positioning abutment 16 can play the role of abutting and limiting the shock-absorbing parts.
[0042] Both the forefoot shell 11 and the rearfoot shell 12 have granular textures on their top sides (not shown in the figure), which can make the bottom side of the produced insole have certain irregular textures, thereby increasing the bottom side friction of the finished insole and reducing slipping.
[0043] The thickness of the forefoot shell 11 and the rearfoot shell 12 ranges from 2 to 5 mm. In this embodiment, the thickness of the forefoot shell 11 and the rearfoot shell 12 is 3 mm. The 3 mm thick forefoot shell 11 and the rearfoot shell 12 have sufficient hardness and strength to form the insole, which can further reduce the mold manufacturing cost of the insole.
[0044] The top side of the abutment part 13 is provided with a countersunk hole 131, which makes it easy to install the abutment part 13 on the processing equipment for processing by using countersunk bolts.
[0045] Both the bottom mold 1 and the top mold 2 are PP / PE mixed plastic molds. PP / PE mixed plastic molds have good impact resistance, wear resistance and chemical resistance, and can resist the erosion of chemical substances in the insole raw materials. At the same time, they can reduce the stickiness of the insole product and reduce the adhesion of the insole product to the surface of the forefoot shell 11 and the rearfoot shell 12, making demolding easier.
[0046] A ventilation channel 132 is provided on the top side of the contact part 13. The ventilation channel 132 connects the inner side and the outer side of the contact part 13. The ventilation channel 132 can discharge gas during the process of forming the insole finished product in the forefoot shell 11, the rearfoot shell 12 and the rearfoot stacked shell 14 from the insole raw material, thereby reducing the situation of too many air holes in the finished insole and improving the quality of insole molding.
[0047] This application also discloses a processing device for molding insoles.
[0048] Reference Figure 1 and Figure 3 A processing device for molding insoles includes a processing table 3, a forefoot shell 11 and a rearfoot shell 12 inserted into the top side of the processing table 3, and a groove adapted to the forefoot shell 11, the rearfoot shell 12 and the rearfoot stacked shell 14 on the top side of the processing table 3. An abutment part 13 is connected to the top side of the processing table 3, and a countersunk bolt is provided at the countersunk hole 131 of the abutment part 13. The abutment part 13 is connected to the top side of the processing table 3 by the countersunk bolt. A processing frame 31 is provided on the top of the processing table 3, and a mold closing drive 32 is provided on the processing frame 31. The mold closing drive 32 is a cylinder. The top mold 2 is located above the bottom mold 1 and is located at the driving end of the mold closing drive 32. The driving end of the mold closing drive 32 is connected to a disassembly seat 33. The top mold 2 is installed at the bottom of the disassembly seat 33 by bolts. The mold closing drive 32 is used to drive the top mold 2 to close onto the top side of the abutment part 13.
[0049] During production, the insole material can be placed into the forefoot shell 11, the rearfoot shell 12 and the rearfoot overlapping shell 14, and the mold closing drive 32 can drive the top mold 2 to move downward, thereby covering the top side of the abutment part 13 to form the insole.
[0050] The implementation principle of this application embodiment is as follows: When it is necessary to produce shoe insoles, the shoe insoles raw materials with the prepared formula can be added to the forefoot shell 11 and the heel shell 12. Then, the top mold 2 is placed on top of the bottom mold 1, and the shoe insoles raw materials are formed under the action of pressing and mixing. This helps to adopt or develop new room temperature molding processes for production, instead of using metal molds, reducing mold costs. Molding at room temperature reduces the production cost of heating and also reduces the harmful gases generated by heating, improving environmental protection. Furthermore, since both the bottom mold 1 and the top mold 2 are PP / PE mixed plastic molds with low viscosity, it is not necessary to spray a release agent before processing, further saving production and labor costs.
[0051] The above are all preferred embodiments of this application. These embodiments are only explanations of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A mold for molding shoe insoles, characterized in that, The mold includes a bottom mold (1) and a top mold (2), both of which are plastic molds. The bottom mold (1) includes a front foot shell (11), a rear foot shell (12), and an abutment part (13). The front foot shell (11) is flat and connected to the rear foot shell (12). The width of the connection between the front foot shell (11) and the rear foot shell (12) gradually decreases from the front foot shell (11) to the rear foot shell (12). The abutment part (13) is connected around the periphery of the front foot shell (11) and the rear foot shell (12). The top mold (2) is adapted to the top side of the abutment part (13).
2. The mold for insole forming according to claim 1, characterized in that, A hind foot stacked shell (14) is provided between the hind foot shell (12) and the abutment part (13). The hind foot stacked shell (14) surrounds the hind foot shell (12). The abutment part (13) is in the shape of a streamlined smooth plate at the position corresponding to the connection between the front foot shell (11) and the hind foot shell (12).
3. A mold for forming shoe insoles according to claim 2, characterized in that, The inner wall of the abutment part (13) is provided with a stepped loop (15), which is connected to the forefoot shell (11) and the hindfoot stacked shell (14).
4. A mold for molding shoe insoles according to claim 1, characterized in that, The top of the hind foot shell (12) is provided with a positioning abutment (16), and the end of the positioning abutment (16) is provided with a positioning plug (17).
5. A mold for molding shoe insoles according to claim 1, characterized in that, The thickness of the forefoot shell (11) and the hindfoot shell (12) ranges from 2 to 5 mm.
6. The mold for forming an insole according to claim 1, wherein Both the bottom mold (1) and the top mold (2) are PP / PE mixed plastic molds.
7. The mold for forming an insole according to claim 1, wherein The top side of the abutment part (13) is provided with a ventilation channel (132), which connects the inner side and the outer side of the abutment part (13).
8. A processing apparatus for forming an insole, which employs the mold for forming an insole according to any one of claims 1 to 7, characterized by, The machine includes a processing table (3), the front foot shell (11) and the rear foot shell (12) are inserted into the processing table (3), the abutment part (13) is connected to the top side of the processing table (3), the processing table (3) is provided with a processing frame (31), the processing frame (31) is provided with a mold closing drive (32), the top mold (2) is provided at the driving end of the mold closing drive (32), and the mold closing drive (32) is used to cover the top mold (2) with the abutment part (13).