GCU sole trimming-free mold for shoemaking

Abstract

The utility model discloses a kind of GCU outsole deburring-free mould for shoemaking, it is related to mould technical field.The utility model includes upper die and lower die, the bottom end of the upper die is equipped with upper die cavity, the top of the lower die is equipped with lower die cavity, upper die cavity periphery is equipped with sliding slot, sliding slot is slidably connected with cutter, sealing ring is fixedly connected on sliding slot side wall, the groove bottom of the sliding slot is equipped with first air hole, the side wall of the upper die is equipped with the first air hole intercommunication first air hole, lower die cavity periphery is equipped with cutter groove, the cross-sectional shape of cutter groove is same with cutter blade cross section, by the cooperation of sliding slot, cutter, sealing ring, cutter groove, after GCU outsole forming after mould closing, by cutter to GCU outsole flash, burr is removed, without using other trimming equipment again, reduce work flow and labor cost, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a GCU outsole mold for shoemaking that requires no trimming. Background Technology

[0002] The GCU outsole is an all-weather, non-slip, and wear-resistant outsole made of cast polyurethane elastomer. The core of the material selection for the GCU outsole mold is to be compatible with polyurethane casting and high-temperature vulcanization processes, and to meet key requirements such as temperature resistance, wear resistance, and corrosion resistance. The mainstream material is alloy.

[0003] While existing GCU molds have the advantages of high surface smoothness of the mold cavity, which can reduce GCU material adhesion and ensure that the outsole surface is burr-free and has clear and complete texture, the inventors found in actual use that after demolding, the edges of the GCU outsole will have excess material such as flash and burrs, which need to be trimmed with an edge trimming machine, increasing production time and labor costs, resulting in low production efficiency and high cost. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a GCU outsole trimming-free mold for shoe manufacturing, so as to solve the technical problems of low production efficiency and high cost.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a GCU outsole trimming-free mold for shoemaking, comprising an upper mold and a lower mold, wherein the bottom end of the upper mold has an upper mold cavity, the top end of the lower mold has a lower mold cavity, a groove is formed around the periphery of the upper mold cavity, a cutting blade is slidably connected in the groove, a sealing ring is fixedly connected to the side wall of the groove, a first air hole is formed at the bottom of the groove, a first air guide hole communicating with the first air hole is formed on the side wall of the upper mold, and a cutting groove is formed around the periphery of the lower mold cavity, the cross-sectional shape of the cutting groove being the same as the cross-sectional shape of the cutting blade.

[0006] By adopting the above technical solution, firstly, through the matching setting of the upper and lower molds, the upper mold cavity and the lower mold cavity are precisely connected to form a complete GCU outsole forming space. At the same time, the cutting blade connected in the slide groove is precisely matched with the cutting groove of the lower mold, so that the edge of the outsole can be directly cut during the forming process, realizing the core function of no trimming, eliminating the need for subsequent separate trimming process, effectively simplifying the production process. The sealing ring on the side wall of the slide groove can prevent gas leakage and ensure the normal working process of the cutting blade.

[0007] Furthermore, a cushioning pad is laid at the bottom of the chopping blade, and the cushioning pad is fixedly connected to the bottom of the chopping blade by bolts. The shape of the cushioning pad fits the shape of the bottom of the chopping blade.

[0008] By adopting the above technical solution, firstly, a buffer pad is laid at the bottom of the cleaver and fixed with bolts. The buffer pad fits the shape of the bottom of the cleaver and can play an effective buffering role when the cleaver retracts after cutting the bottom edge, avoiding excessive impact force generated by rigid contact between the cleaver and the groove, reducing wear on the cleaver and the mold. The bolt fixing method makes the installation and replacement of the buffer pad more convenient. When the buffer pad ages or wears, it can be quickly disassembled and replaced without complex adjustments to the cleaver or mold body, ensuring the continuity of production.

[0009] Furthermore, the upper mold has a positioning hole that mates with the positioning rod.

[0010] By adopting the above technical solution, multiple positioning rods fixedly connected to the top of the lower mold are precisely matched with the positioning holes of the upper mold, which can play a role in precise guidance and positioning during the mold closing process, ensuring that the upper mold and the lower mold are quickly aligned when closing the mold and avoiding misalignment deviation.

[0011] Furthermore, a decorative rod is fixedly connected inside the upper mold cavity wall, and one end of the decorative rod facing the lower mold cavity is in contact with the cavity wall of the lower mold cavity.

[0012] By adopting the above technical solution, the end of the flower rod fixedly connected inside the upper mold cavity wall facing the lower mold cavity fits against the cavity wall of the lower mold cavity. During the outsole forming process, the flower rod can directly press the preset pattern or structural texture on the outsole surface without the need for subsequent additional embossing processes. The forming and embossing operations are completed in one integrated manner, simplifying the production process and improving production efficiency. At the same time, the pressed pattern can enhance the anti-slip performance and appearance decoration effect of the GCU outsole.

[0013] Furthermore, the initial position of the cutting blade is lower than the forming surface of the upper mold.

[0014] By adopting the above technical solution, the initial position of the cutting blade is lower than the forming surface of the upper mold, which can ensure that the raw material is fully filled and formed in the mold cavity in the early stage of mold closing, avoiding the cutting blade from contacting the raw material too early, which would lead to uneven distribution of raw material or incomplete forming, thus ensuring the forming quality of the main body of the outsole. At the same time, after the raw material in the mold cavity is filled in place, the cutting blade then slides to achieve edge trimming.

[0015] Furthermore, the first air inlet is connected to an external air pump via an air pipe.

[0016] By adopting the above technical solution, the first air guide hole is connected to an external air pump through an air pipe, which can use the power of the air pump to realize the rapid discharge and filling of gas in the mold cavity, thereby realizing the control of the up and down sliding of the cutter. When the air pump extracts the gas between the slide and the cutter, the cutter slides towards the bottom of the slide in the slide. At this time, the cutter is in the initial position. When the air pump fills in the gas, the cutter is subjected to the gas pressure in the slide and begins to slide down the slide.

[0017] Furthermore, the bottom of the cutter groove is provided with multiple air blowing holes, and the side wall of the lower mold is provided with a second air guide hole that communicates with the air blowing holes. The second air guide hole is connected to an external air pump through an air pipe.

[0018] By adopting the above technical solution, multiple air blowing holes at the bottom of the cutter groove are connected to the second air guide hole, and the second air guide hole is connected to an external air pump through an air pipe. After the cutter finishes cutting, the airflow provided by the air pump blows out from the air blowing hole, quickly cleaning the waste material generated during cutting from the cutter groove, avoiding the accumulation of waste material in the cutter groove that affects subsequent cutting operations or causes contamination of the bottom edge, and ensuring the continuous and stable operation of the mold.

[0019] In summary, the present invention has the following main advantages:

[0020] 1. This utility model, through the cooperation of the slide groove, the cutting blade, the sealing ring, and the cutting groove, allows the flash and burrs of the GCU outsole to be removed by the cutting blade after the mold is closed and the outsole is formed. There is no need to use other cutting equipment, which reduces the workflow and labor costs and improves work efficiency.

[0021] 2. This utility model ensures the airtightness of the space between the cleaver and the slide by setting a sealing ring, ensuring that the slide can only be supplied and evacuated by an external air pump, thus ensuring the stable operation of the cleaver. The setting of the buffer pad reduces the rigid collision and wear between the cleaver and the mold, increasing the service life of the cleaver and the mold. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lower mold structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the upper mold of this utility model;

[0025] Figure 4 This is a schematic diagram of the tool groove structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the internal structure of the groove of this utility model.

[0027] In the diagram: 1. Upper mold; 2. Lower mold; 3. Upper mold cavity; 4. Lower mold cavity; 5. Slide groove; 6. Cutter; 7. Sealing ring; 8. First air hole; 9. First air guide hole; 10. Cutter groove; 11. Buffer pad; 12. Bolt; 13. Positioning rod; 14. Positioning hole; 15. Flower rod; 17. Air blowing hole; 18. Second air guide hole. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In this embodiment:

[0030] A type of GCU outsole mold for shoemaking that requires no trimming, such as Figure 1-5 As shown, the system includes an upper mold 1 and a lower mold 2, which are precisely aligned and fitted together. Both are made of high-strength, wear-resistant alloy. The upper mold 1 has an upper cavity 3 at its bottom, with a pre-defined shape and curvature based on the GCU outsole. The lower mold 2 has a lower cavity 4 at its top, which corresponds to and perfectly matches the upper cavity 3. A groove 5 is formed around the periphery of the upper cavity 3, evenly circumferentially. A cutting blade 6 is slidably connected within the groove 5, with its sidewall fitting snugly against the inner wall of the groove 5. A sealing ring 7 is fixedly connected to the sidewall of the groove 5. 7 is fixed around the entire circumference of the side wall of the slide groove 5. Both sides of the slide groove 5 are fixedly connected with sealing rings 7. The bottom of the slide groove 5 is provided with first air holes 8. The first air holes 8 are evenly distributed at the bottom of the groove. The side wall of the upper mold 1 is provided with first air guide holes 9 that communicate with the first air holes 8. The first air guide holes 9 communicate with all the first air holes 8. A sealing joint is provided at the port of the first air guide holes 9. The lower mold 2 is provided with a cutting groove 10 around the mold cavity. The cutting groove 10 is opened at the outer edge of the mold cavity and corresponds precisely to the position of the cutting blade 6. The cross-sectional shape of the cutting groove 10 is the same as the cross-sectional shape of the cutting blade 6. The shapes of the cutting groove 10 and the cutting blade 6 are matched and the clearance fit is controlled within a reasonable range.

[0031] See Figure 5 A cushioning pad 11 is laid at the bottom of the chopping knife 6. The cushioning pad 11 is fixedly connected to the bottom of the chopping knife 6 by bolts 12. The cushioning pad 11 is fixedly connected to the side of the chopping knife 6 away from the blade and is made of a material with high elastic recovery performance and wear resistance. It is detachably connected by multiple bolts 12 evenly distributed along the length of the chopping knife 6. The shape of the cushioning pad 11 fits the shape of the bottom of the chopping knife 6. The shape of the cushioning pad 11 fits the shape of the bottom of the chopping knife 6 perfectly and the edges are flush.

[0032] See Figure 1 , Figure 2 Multiple positioning rods 13 are fixedly connected to the top of the lower mold 2. Positioning rods 13 with dual functions of guiding and positioning are fixedly connected to the four corners of the top of the lower mold 2 where the force is balanced. The upper mold 1 has positioning holes 14 that cooperate with the positioning rods 13. The positioning rods 13 are inserted into the positioning holes 14, and the positioning rods 13 and the positioning holes 14 are precisely matched.

[0033] See Figure 3 A decorative rod 15 is fixedly connected inside the cavity wall of the upper mold cavity 3. The decorative rod 15 is laid out according to a preset pattern. One end of the decorative rod 15 facing the lower mold cavity 4 is attached to the cavity wall of the lower mold cavity 4. The decorative rod 15 attached to the lower mold cavity 4 can form a perforated effect on the GCU outsole. The decorative rod 15 attached to the lower mold cavity 4 is used to press anti-slip patterns or markings.

[0034] See Figure 5 The initial position of the cutting blade 6 is lower than the forming surface of the upper mold 1 to prevent the cutting blade 6 from affecting the forming of the GCU outsole during the forming process.

[0035] See Figure 1 , Figure 3 The first air guide hole 9 is connected to an external air pump through an air pipe. The end of the first air guide hole 9 is fixedly connected to a sealing interface, which facilitates connection with an external cylinder through an air pipe.

[0036] See Figure 4 The bottom of the cutter groove 10 is provided with multiple air blowing holes 17, which are perpendicular to the horizontal plane to ensure upward air blowing. The side wall of the lower mold 2 is provided with a second air guide hole 18 that communicates with the air blowing holes 17. The second air guide hole 18 is connected to the air blowing holes 17 and is connected to the air blowing holes 17. The second air guide hole 18 is connected to an external air pump through an air pipe, and the external air pump provides an upward airflow with a certain pressure.

[0037] The implementation principle of this embodiment is as follows: First, the GCU outsole material is injected into the lower mold cavity 4 of the lower mold 2. Then, the upper mold 1 and the lower mold 2 are closed by the precise cooperation of the positioning rod 13 and the positioning hole 14. The upper mold cavity 3 and the lower mold cavity 4 are connected to form a closed molding space. In the initial stage of mold closing, after the mold closing is completed, the GCU outsole material is allowed to solidify. Then, the material is fully filled in the mold cavity. At the same time, the flower rod 15 in the upper mold cavity 3 is attached to the cavity wall of the lower mold cavity 4. During the material molding process, the preset pattern is pressed out and the material is compacted. After the material is filled and formed, the cutting blade 6 in the slide groove 5 is driven to slide downward by the power provided by the external air pump through the first air guide hole 9 and the first air hole 8, and the cutting blade 6 in the slide groove 5 slides downward and engages with the lower mold. The tool 2's groove 10 precisely fits and cuts the edge of the GCU outsole. After cutting, the external air pump reduces the air in the slide 5, causing the cutting blade 6 to slide upward, detach from the groove 10, and return to its initial position. The buffer pad 11 reduces the rigid collision between the cutting blade 6 and the bottom of the slide 5. After cutting, the second air guide hole 18 is connected to the external air pump, and airflow is blown out through the air blowing hole 17 at the bottom of the groove 10 to clean the corner waste in the groove 10 and assist in the outsole demolding. Finally, the outsole forming, pattern pressing, edge cutting, and waste cleaning are completed in one integrated process, achieving edge-free production without the need for additional process intervention, which not only ensures product quality but also improves production efficiency.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A GCU outsole trimming-free mold for shoemaking, characterized in that: The mold includes an upper mold (1) and a lower mold (2). The upper mold (1) has an upper mold cavity (3) at its bottom end and a lower mold cavity (4) at its top end. The upper mold cavity (3) has a groove (5) around its periphery. A slidable blade (6) is connected in the groove (5). A sealing ring (7) is fixedly connected to the side wall of the groove (5). A first air hole (8) is provided at the bottom of the groove (5). A first air guide hole (9) communicating with the first air hole (8) is provided on the side wall of the upper mold (1). A blade groove (10) is provided around the cavity of the lower mold (2). The cross-sectional shape of the blade groove (10) is the same as that of the blade (6).

2. The shoe-making GCU outsole trimming-free mold according to claim 1, characterized in that: The bottom of the chopping knife (6) is covered with a buffer pad (11), which is fixedly connected to the bottom of the chopping knife (6) by bolts (12). The shape of the buffer pad (11) fits the shape of the bottom of the chopping knife (6).

3. The shoe-making GCU outsole trimming-free mold according to claim 1, characterized in that: The lower mold (2) is fixedly connected to a plurality of positioning rods (13), and the upper mold (1) is provided with positioning holes (14) that cooperate with the positioning rods (13).

4. The shoe-making GCU outsole trimming-free mold according to claim 1, characterized in that: A flower rod (15) is fixedly connected inside the cavity wall of the upper mold cavity (3), and one end of the flower rod (15) facing the lower mold cavity (4) is in contact with the cavity wall of the lower mold cavity (4).

5. The shoe-making GCU outsole trimming-free mold according to claim 1, characterized in that: The initial position of the cutting blade (6) is lower than the forming surface of the upper mold (1).

6. The shoe-making GCU outsole trimming-free mold according to claim 1, characterized in that: The first air guide hole (9) is connected to an external air pump through an air pipe.

7. The shoe-making GCU outsole trimming-free mold according to claim 1, characterized in that: The bottom of the cutter groove (10) is provided with multiple air blowing holes (17), and the side wall of the lower mold (2) is provided with a second air guide hole (18) that communicates with the air blowing holes (17). The second air guide hole (18) is connected to an external air pump through an air pipe.

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