IP sole mold with 3D printing insert

Abstract

The utility model relates to the technical field of molds, and particularly discloses an IP sole mold with a 3D printing insert. The mold comprises an upper mold body, a lower mold body and an insert which is detachably fixed to the upper mold body and formed through 3D printing, the upper mold body is provided with an insert groove used for containing the insert, the lower mold body is provided with a forming groove matched with the insert, and the forming groove and the insert are combined to form a forming cavity; a feeding groove structure which is used for feeding and protrudes out of the lower side of the lower die is arranged below the lower die, and an adjusting structure used for adjusting the feeding flow is arranged on the feeding groove structure. An exhaust groove structure for exhausting is arranged above the upper die and the lower die, the exhaust groove structure is connected with an air extractor, the air extractor is used for extracting air in the forming cavity, and a positioning assembly is arranged between the upper die and the lower die. The die is simple in structure, high in production efficiency and good in forming effect.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an IP shoe sole mold with 3D printed inserts. Background Technology

[0002] In recent years, with the maturity of 3D metal printing technology, the footwear industry has begun to slowly try to introduce 3D metal printing technology into production. One-time foamed IP soles have excellent cushioning, shock absorption, resilience and support. The structure of the mold directly affects the performance and appearance of the sole. The texture of IP sole molds is usually processed by etching, electroplating and other methods after the mold frame is completed, which makes the mold production efficiency low. The feeding method and positioning method of the mold during production will directly affect the texture of the sole. An inappropriate structure can easily lead to a decline in appearance quality. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an IP shoe sole mold with 3D printed inserts, which has a simple structure, high production efficiency, and good molding effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An IP shoe sole mold with 3D printed inserts includes an upper mold, a lower mold, and a 3D printed insert detachably fixed to the upper mold. The upper mold has an insert groove for placing the insert, and the lower mold has a molding groove that mates with the insert. The molding groove and the insert combine to form a molding cavity.

[0006] The lower mold has a feeding groove structure protruding from the lower side for feeding material, and the feeding groove structure has an adjustment structure for adjusting the feeding flow rate; the upper mold has an exhaust groove structure for venting, and the exhaust groove structure is connected to an air extraction device for extracting air from the molding cavity; a positioning component is provided between the upper mold and the lower mold.

[0007] According to some embodiments of the present invention, the feeding groove structure includes a main material groove, a distribution groove that extends to both sides of the forming groove and communicates with the main material groove, and a V-shaped injection groove disposed in the lower mold. The two ends of the injection groove are respectively connected to the forming cavity and the distribution groove.

[0008] According to some embodiments of the present invention, the adjustment structure includes an adjustment screw disposed in the material distribution groove on the lower mold, the lower mold having a threaded hole matching the adjustment screw, and the adjustment screw being used to adjust the feed flow rate of the feed groove.

[0009] According to some embodiments of the present invention, the venting groove structure includes a main venting groove disposed on the upper mold, a large arc-shaped venting groove disposed on the lower mold and communicating with the main venting groove, an extension groove disposed at the end of the large arc-shaped venting groove, and a shallow groove communicating with the extension groove and the molding cavity.

[0010] According to some embodiments of the present invention, the adjusting structure includes a blocking rod that penetrates the upper mold and can move up and down within the upper mold, and the feeding groove structure has a blocking groove that matches the blocking rod. The blocking rod is used to insert into the blocking groove to block the material from entering or exiting.

[0011] According to some embodiments of the present invention, the positioning component includes two guide posts disposed at one diagonal of the upper mold and a guide sleeve disposed at one diagonal of the lower mold that matches the guide posts, the guide posts being used for positioning by inserting into the guide sleeve.

[0012] According to some embodiments of the present invention, the positioning component includes a mold stop block disposed on the top of the upper mold, two mold stops blocks disposed on the left and right sides of the upper mold, a mold stop groove disposed on the top of the lower mold that matches the mold stops, and mold stop grooves disposed on the left and right sides of the lower mold that match the mold stops. The mold stops are used to be inserted into the mold stop grooves for positioning.

[0013] According to some embodiments of the present invention, the positioning component includes two locking holes provided at one diagonal of the upper mold and two locking holes provided at one diagonal of the lower mold, wherein the locking holes of the upper mold and the locking holes of the lower mold are aligned with each other after mold closing.

[0014] According to some embodiments of the present invention, the positioning component includes a first prying opening disposed on the top side of the lower mold and a second prying opening disposed on the bottom side of the lower mold.

[0015] According to some embodiments of this utility model, the insert is formed by printing aluminum alloy powder.

[0016] This utility model has at least the following beneficial effects:

[0017] Compared to traditional cast inserts, 3D printed inserts reduce mold production steps, improve efficiency, produce smaller and finer textures, and achieve better molding results. Inserts are fixed in the insert grooves using screws and other fixing structures, making them easy to replace and maintain. The feed chute structure connects to external feeding equipment, and the adjustment structure can regulate the flow rate of the incoming material. The venting structure accelerates the flow of the material and also helps reduce bubbles and defects during the molding process, improving the product's appearance and production speed. Positioning components ensure the accuracy of the mold. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the lower mold structure according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the upper mold and insert according to one embodiment of the present invention;

[0020] Figure 3 This is a cross-sectional view of one embodiment of the present invention. Detailed Implementation

[0021] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0022] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0024] An embodiment of this utility model provides an IP shoe sole mold with 3D printed inserts, such as... Figure 1-3 As shown, the device includes an upper mold 101, a lower mold 102, and a 3D-printed insert 103 detachably fixed to the upper mold 101. The upper mold 101 has an insert groove for placing the insert 103, and the lower mold 102 has a molding groove 104 that mates with the insert 103. The molding groove 104 and the insert 103 are combined to form a molding cavity.

[0025] The lower mold 102 is provided with a feeding groove structure 201 protruding from the lower side of the lower mold 102 for feeding material. The feeding groove structure 201 has an adjustment structure 301 for adjusting the feeding flow rate. The upper mold 102 is provided with an exhaust groove structure 401 for exhausting air. The exhaust groove structure 401 is connected to an air extraction device, which is used to extract air from the molding cavity. A positioning component 501 is provided between the upper mold 101 and the lower mold 102.

[0026] This mold is a specialized mold for IP injection molding machines. After the granular EVA material is melted at high temperature by the feeding equipment, it is injected into the molding cavity of the mold through the feeding groove structure 201. The vacuum equipment expels the air from the molding cavity through the exhaust groove structure 401, creating a vacuum state, which facilitates the molten EVA material entering the molding cavity from the feeding groove structure 201. The product foams and ejects instantly when the mold opens. Specifically, the insert 103 is 3D printed, resulting in smaller and finer textures and better molding effect. Compared to traditional cast inserts, the 3D printed insert 103 reduces mold production steps and improves efficiency. The insert 103 is fixed in the insert groove by screws and other fixing structures, facilitating replacement and maintenance. The insert 103 has two molding grooves, corresponding to the two molding grooves 104 on the upper mold 101, allowing for one-time molding of the entire shoe assembly. The feeding trough structure 201 is connected to an external feeding device, and the adjustment structure 301 can adjust the flow rate of the incoming material. The venting trough structure 401 is connected to an air extraction device to extract air from the molding cavity, accelerate the flow of the material, and also help reduce bubbles and defects during the molding process, improve the appearance and structural integrity of the product. The upper mold 101 and the lower mold 102 are separate and are aligned vertically by the positioning component 501. In practice, the positioning component 501 will have a variety of different positioning methods to further ensure the accuracy of the mold.

[0027] In some embodiments, such as Figure 1 , 3 As shown, the feed trough structure 201 includes a main feed trough 202, a distribution trough 203 that extends to the molding troughs 104 on both sides and communicates with the main feed trough 202, and a V-shaped injection trough 204 disposed in the lower mold 102. The two ends of the injection trough 204 are respectively connected to the molding cavity and the distribution trough 203.

[0028] The material distribution channel 203 allows the material to be distributed into the two molding cavities. The injection channel 204 is V-shaped, with one end connected to the material distribution channel 203 and extending downwards, then bending upwards and extending upwards. The other end connects to the molding cavity, forming a V-shaped flow channel, which effectively increases the injection pressure of the material.

[0029] Furthermore, the adjustment structure 301 includes an adjustment screw 302 disposed in the material distribution groove 203 on the lower mold 102. The lower mold 102 has a threaded hole that matches the adjustment screw 302. The adjustment screw 302 is used to adjust the feed flow rate of the feed groove.

[0030] The adjusting screw 302 can individually adjust the flow rate of each section of the material distribution groove 203 leading to the molding cavity, and can individually adjust the production of each molding cavity according to the situation, which is convenient for production.

[0031] In some embodiments, such as Figure 1-3As shown, the venting groove structure 401 includes a main venting groove 402 disposed on the upper mold 101, a large arc-shaped venting groove 403 disposed on the lower mold 102 and communicating with the main venting groove 402, an extension groove 404 disposed at the end of the large arc-shaped venting groove 403, and a shallow groove 405 communicating with the extension groove 404 and the molding cavity.

[0032] The main exhaust groove 402 is connected to an air extraction device. The main exhaust groove 402 is set on the upper mold 101 and can be set vertically or obliquely to facilitate air extraction by the air extraction device. The design of the large arc-shaped exhaust groove 403 allows the gas in the molding cavities on both sides to be extracted at the same time. The expansion groove 404 facilitates the absorption of more gas. Due to the poor fluidity of the material, the design of the shallow groove 405 can effectively prevent the liquid material from being discharged during vacuuming.

[0033] In some embodiments, such as Figure 1-3 As shown, the adjustment structure 301 includes a blocking rod 303 that passes through the upper mold 101 and can move up and down within the upper mold 101. The feed groove structure 201 has a blocking groove 304 that matches the blocking rod 303. The blocking rod 303 is used to insert into the blocking groove 304 to block the material from entering or exiting.

[0034] After the feeding equipment completes the feeding, the blocking rod 303 is inserted into the blocking groove 304 to block the material from entering and exiting, so that the material inside the mold cannot flow back and the pressure in the mold remains unchanged.

[0035] In some embodiments, such as Figure 1-2 As shown, the positioning component 501 includes two guide posts 502 disposed at one diagonal of the upper mold 101 and a guide sleeve 503 disposed at one diagonal of the lower mold 102 that matches the guide posts 502. The guide posts 502 are used for positioning by inserting into the guide sleeve 503.

[0036] The upper mold 101 and the lower mold 102 are provided with guide posts 502 at the first diagonal, which are inserted into the guide sleeve 503 for positioning, so as to better align the positioning of the upper mold 101 and the lower mold 102 at the first diagonal.

[0037] In some embodiments, such as Figure 1-2 As shown, the positioning component 501 includes a mold stop 504 disposed on the top of the upper mold 101, two mold stops 504 disposed on the left and right sides of the upper mold 101, a mold stop groove 505 disposed on the top of the lower mold 102 that matches the mold stop 504, and a mold stop groove 505 disposed on the left and right sides of the lower mold 102 that matches the mold stop 504. The mold stop 504 is used to be inserted into the mold stop groove 505 for positioning.

[0038] The upper mold 101 and the lower mold 102 are provided with multiple mold blocks, which, together with the mold block slot 505 for positioning, can better align the upper mold 101 and the lower mold 102.

[0039] In some embodiments, such as Figure 1-2 As shown, the positioning component 501 includes two locking holes 506 provided at one diagonal of the upper mold 101 and two locking holes 506 provided at one diagonal of the lower mold 102. The locking holes 506 of the upper mold 101 and the locking holes 506 of the lower mold 102 are aligned with each other after mold closing.

[0040] After the mold is closed, the locking holes 506 of the upper mold 101 and the lower mold 102 need to be aligned with each other to better align the second diagonal of the upper mold 101 and the lower mold 102, thus achieving further positioning alignment.

[0041] In some embodiments, such as Figure 1-2 As shown, the positioning component 501 includes a first prying opening 507 disposed on the top side of the lower mold 102 and a second prying opening 508 disposed on the bottom side of the lower mold 102.

[0042] The upper and lower pry holes make it easy to pry open the mold from different directions and remove the product.

[0043] In some embodiments, the insert 103 is formed by printing aluminum alloy powder.

[0044] Unprinted aluminum alloy powder inserts 103 effectively reduce product weight while maintaining excellent structural strength. Compared to other high-performance materials, aluminum alloy powder has a cost advantage.

[0045] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. An IP shoe sole mold with 3D printed inserts, characterized in that: The device includes an upper mold (101), a lower mold (102), and a 3D-printed insert (103) detachably fixed to the upper mold (101). The upper mold (101) has an insert groove for placing the insert (103), and the lower mold (102) has a molding groove (104) that mates with the insert (103). The molding groove (104) and the insert (103) combine to form a molding cavity. The lower mold (102) is provided with a feeding groove structure (201) protruding from the lower side of the lower mold (102) for feeding material. The feeding groove structure (201) has an adjustment structure (301) for adjusting the feeding flow rate. The upper mold (101) and the lower mold (102) are provided with an exhaust groove structure (401) for exhausting air. The exhaust groove structure (401) is connected to an air extraction device. The air extraction device is used to extract air from the molding cavity. A positioning component (501) is provided between the upper mold (101) and the lower mold (102).

2. The IP shoe sole mold with 3D printed inserts according to claim 1, characterized in that: The feeding groove structure (201) includes a main material groove (202), a material distribution groove (203) that is connected to the main material groove (202) and extends to the molding grooves (104) on both sides, and a V-shaped injection groove (204) that is disposed in the lower mold (102). The two ends of the injection groove (204) are connected to the molding cavity and the material distribution groove (203) respectively.

3. The IP shoe sole mold with 3D printed inserts according to claim 2, characterized in that: The adjustment structure (301) includes an adjustment screw (302) disposed in the material distribution groove (203) on the lower mold (102). The lower mold (102) has a threaded hole that matches the adjustment screw (302). The adjustment screw (302) is used to adjust the feed flow rate of the feed groove.

4. The IP shoe sole mold with 3D printed inserts according to claim 1, characterized in that: The venting structure (401) includes a main venting groove (402) disposed on the upper mold (101), a large arc-shaped venting groove (403) disposed on the lower mold (102) and communicating with the main venting groove (402), an extension groove (404) disposed at the end of the large arc-shaped venting groove (403), and a shallow groove (405) communicating with the extension groove (404) and the molding cavity.

5. An IP shoe sole mold with 3D printed inserts according to claim 1, characterized in that: The adjustment structure (301) includes a blocking rod (303) that penetrates the upper mold (101) and can move up and down within the upper mold (101). The feed groove structure (201) has a blocking groove (304) that matches the blocking rod (303). The blocking rod (303) is used to insert into the blocking groove (304) to block the material from entering or exiting.

6. An IP shoe sole mold with 3D printed inserts according to any one of claims 1-5, characterized in that: The positioning component (501) includes two guide posts (502) disposed at one diagonal of the upper mold (101) and a guide sleeve (503) disposed at one diagonal of the lower mold (102) that matches the guide posts (502), wherein the guide posts (502) are used to be inserted into the guide sleeve (503) for positioning.

7. An IP shoe sole mold with 3D printed inserts according to any one of claims 1-5, characterized in that: The positioning component (501) includes a mold stop (504) provided on the top of the upper mold (101), two mold stops (504) provided on the left and right sides of the upper mold (101), a mold stop groove (505) provided on the top of the lower mold (102) that matches the mold stop (504), and a mold stop groove (505) provided on the left and right sides of the lower mold (102) that matches the mold stop (504). The mold stop (504) is used to be inserted into the mold stop groove (505) for positioning.

8. An IP shoe sole mold with 3D printed inserts according to any one of claims 1-5, characterized in that: The positioning component (501) includes two locking holes (506) provided at one diagonal of the upper mold (101) and two locking holes (506) provided at one diagonal of the lower mold (102). The locking holes (506) of the upper mold (101) and the locking holes (506) of the lower mold (102) are aligned with each other after mold closing.

9. An IP shoe sole mold with 3D printed inserts according to any one of claims 1-5, characterized in that: The positioning component (501) includes a first prying opening (507) disposed on the top side of the lower mold (102) and a second prying opening (508) disposed on the bottom side of the lower mold (102).

10. An IP shoe sole mold with 3D printed inserts according to any one of claims 1-5, characterized in that: The insert (103) is formed by printing aluminum alloy powder.

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