Mold core and injection mold

Abstract

The utility model discloses a mold core and an injection mold, and relates to the technical field of injection molds, the injection mold comprises a mold core, the mold core comprises a mold core main body and an air suction positioning structure arranged on the mold core main body, the air suction positioning structure comprises a first air suction insert core and a second air suction insert core which are detachably connected, the first air suction insert core and the second air suction insert core jointly define a main air channel and a wavy-line-shaped air suction port, the main air channel is located in the mold core body and communicates with the air suction port and an air suction channel of the mold core body, and the air suction port is located in a product cavity of the mold core body and used for sucking and positioning screen cloth of a product. According to the mold core and the injection mold provided by the utility model, the problem that the air suction positioning structure is blocked and is difficult to clean is solved, a large amount of mold repairing time is saved, meanwhile, suction marks on the screen cloth are eliminated, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a mold core and an injection mold. Background Technology

[0002] In the field of injection molding products, some products contain mesh fabric with a thickness between 0.04 and 0.1 mm. The mesh fabric is relatively soft, non-magnetic, non-elastic, and has fine mesh holes. The mold core of the injection mold needs to use an air suction positioning structure to assist in positioning the mesh fabric.

[0003] Because the mesh of the mesh fabric is extremely small, the suction holes of the suction positioning structure can only be made very small, with a diameter of about 0.2mm. Although this can pick up and position the mesh fabric, the suction holes are easily blocked by material debris during the injection molding process and are difficult to clean. At the same time, because air is highly compressible, the pneumatic device has poor operational stability. If the suction pressure is slightly increased, suction marks will appear on the mesh fabric, resulting in poor product appearance. Utility Model Content

[0004] In view of the above-mentioned defects in the existing technology, the first objective of this utility model is to provide a mold core that solves the problem of difficult cleaning of the suction positioning structure, saves a lot of mold repair time, eliminates suction marks on the mesh, and ensures product quality.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A mold core includes a mold core body and an air suction positioning structure disposed on the mold core body. The air suction positioning structure includes a first air suction inlet and a second air suction inlet that are detachably connected. The first air suction inlet and the second air suction inlet together form a main air channel and a wavy air suction port. The main air channel is located inside the mold core body and connects the air suction port with the air suction channel of the mold core body. The air suction port is located inside the product cavity of the mold core body and is used to suck up and position the mesh fabric of the product.

[0007] The first suction inlet includes a first mounting part and a first forming suction part connected together; the second suction inlet includes a second mounting part and a second forming suction part connected together; the first mounting part and the second mounting part cooperate to form the mounting body of the suction positioning structure; the main air passage is located inside the mounting body; the first forming suction part and the second forming suction part cooperate to form the forming suction head of the suction positioning structure; the suction port is located on the forming suction head.

[0008] The first forming suction part is provided with a first toothed structure, and the second forming suction part is provided with a second toothed structure adapted to the first toothed structure. The first toothed structure and the second toothed structure together form the air intake.

[0009] The first molding suction part is provided with a molding suction part receiving groove for installing the second molding suction part, the first toothed structure is disposed in the molding suction part receiving groove, and the second toothed structure is disposed on the side of the second molding suction part close to the first toothed structure.

[0010] The first mounting part is provided with an air passage groove that communicates with the accommodating groove of the forming and suction part, and the second mounting part and the air passage groove together form the main air passage.

[0011] The first mounting part is provided with a mounting part receiving groove for mounting the second mounting part, and the air passage groove is located in the mounting part receiving groove.

[0012] The first mounting part is provided with an air hole that communicates with the air passage groove, and the air hole is connected to the air intake passage.

[0013] The first suction inlet and the second suction inlet are detachably connected by a pin.

[0014] The mold core body is provided with a mounting hole that communicates with the product cavity and is adapted to the mounting body. The wall of the mounting hole is provided with a limiting groove that is adapted to the pin. The mounting body is installed in the mounting hole, and the pin is limited in the limiting groove.

[0015] By adopting the above technical solution, the beneficial effects of this utility model are:

[0016] The mold core provided by this utility model has an optimized structure. Its suction positioning structure is assembled from two detachably connected first suction inlets and second suction inlets. At the same time, the suction port of the suction positioning structure is designed in a wavy shape. When the suction port is blocked by material debris, it can be disassembled for cleaning, which is convenient and efficient. This solves the problem of difficult cleaning when the suction positioning structure is blocked, saving a lot of mold repair time. The wavy suction port increases the suction area and suction boundary, which can not only prevent the mesh from curling during placement, but also eliminate suction marks on the mesh caused by excessive suction pressure, thus ensuring product quality.

[0017] Based on the same inventive concept, the second objective of this utility model is to provide an injection mold that solves the problem of difficult cleaning of the suction positioning structure, saves a lot of mold repair time, and eliminates suction marks on the mesh, thus ensuring product quality.

[0018] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0019] An injection mold, the injection mold comprising the mold core described in the above technical solution.

[0020] By adopting the above technical solution, the beneficial effects of this utility model are:

[0021] The injection mold provided by this utility model has the mold core described in the above technical solution, thus solving the problem of difficult cleaning of the suction positioning structure, saving a lot of mold repair time, and eliminating suction marks on the mesh, thereby ensuring product quality. Attached Figure Description

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

[0023] Figure 2 yes Figure 1 One of the sectional views;

[0024] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0025] Figure 4 yes Figure 1 Another sectional view;

[0026] Figure 5 yes Figure 1 Explosion-proof diagram of the mid-intake positioning structure and mesh fabric;

[0027] Figure 6 yes Figure 5 Explosion-proof diagram of the mid-intake positioning structure;

[0028] Figure 7 yes Figure 6 A structural diagram of the other side;

[0029] In the diagram: 1. Mold core body; 11. Suction channel; 12. Limiting groove; 13. Installation clearance groove; 2. Suction positioning structure; 21. First suction inlet; 211. First mounting part; 212. First molding suction part; 213. First toothed structure; 214. Molding suction part receiving groove; 215. Air passage groove; 216. Mounting part receiving groove; 217. Air hole; 22. Second suction inlet; 221. Second mounting part; 222. Second molding suction part; 223. Second toothed structure; 23. Main air passage; 24. Suction port; 25. Pin hole; 26. Pin; 3. Product; 31. Mesh fabric. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0031] like Figures 1 to 7 As shown, this embodiment discloses a mold core, including a mold core body 1 and an air suction positioning structure 2 disposed on the mold core body 1. The air suction positioning structure 2 includes a first air suction inlet 21 and a second air suction inlet 22 that are detachably connected. The first air suction inlet 21 and the second air suction inlet 22 together form a main air channel 23 and a wavy air suction port 24. The main air channel 23 is located inside the mold core body 1 and connects the air suction port 24 with the air suction channel 11 of the mold core body 1. The air suction port 24 is located inside the product cavity of the mold core body 1 and is used to pick up and position the mesh fabric 31 of the product 3.

[0032] In this embodiment, the mold core's suction positioning structure 2 is assembled from two detachably connected first suction inlets 21 and second suction inlets 22. The suction port 24 of the suction positioning structure 2 is designed in a wavy shape. When material debris clogs the suction port 24, it can be disassembled for cleaning, which is convenient and efficient, solving the problem of difficult cleaning when the suction positioning structure 2 is clogged and saving a significant amount of mold repair time. The wavy suction port 24 increases the suction area and suction boundary, preventing the mesh fabric 31 from curling during placement and eliminating suction marks caused by excessive suction pressure on the mesh fabric 31, thus ensuring the quality of the product 3.

[0033] In this embodiment, the first suction inlet 21 includes a first mounting portion 211 and a first forming suction portion 212 connected together. The second suction inlet 22 includes a second mounting portion 221 and a second forming suction portion 222 connected together. The first mounting portion 211 and the second mounting portion 221 cooperate to form the mounting body of the suction positioning structure 2. The mounting body is used to be installed inside the mold core body 1, and the main air passage 23 is located inside the mounting body. The first forming suction portion 212 and the second forming suction portion 222 cooperate to form the forming suction head of the suction positioning structure 2. The forming suction head is used to cooperate with the mold core body 1 to form a product cavity, and the suction port 24 is located on the forming suction head. This configuration makes the structure of the suction positioning structure 2 simpler, which is not only easier to process, but also facilitates the assembly of the suction positioning structure 2 with the mold core body 1, thus improving assembly efficiency.

[0034] In this embodiment, the first forming suction part 212 is provided with a first toothed structure 213, and the second forming suction part 222 is provided with a second toothed structure 223 adapted to the first toothed structure 213. The first toothed structure 213 and the second toothed structure 223 together form a wavy air intake 24.

[0035] Specifically, the first forming suction part 212 is provided with a forming suction part receiving groove 214 for installing the second forming suction part 222. The first toothed structure 213 is disposed in the forming suction part receiving groove 214, and the second toothed structure 223 is disposed on the side of the second forming suction part 222 near the first toothed structure 213. When the second forming suction part 222 is installed into the forming suction part receiving groove 214, the first toothed structure 213 and the second toothed structure 223 together form a wavy air intake 24. Of course, the air intake 24 can also be straight or S-shaped, depending on the requirements. This embodiment does not limit this.

[0036] In this embodiment, the first mounting part 211 is provided with an air passage groove 215 that communicates with the molding suction part receiving groove 214, and the second mounting part 221 and the air passage groove 215 together form the main air passage 23.

[0037] Specifically, the first mounting part 211 is provided with a mounting part receiving groove 216 for mounting the second mounting part 221, and the air passage groove 215 is provided in the mounting part receiving groove 216.

[0038] In this embodiment, the second mounting part 221 and the second molding suction part 222 are arranged in an L-shape, that is, the second suction inlet 22 is L-shaped; the mounting part receiving groove 216 and the molding suction part receiving groove 214 are connected to form an L-shaped mounting groove, and the second suction inlet 22 is installed in the L-shaped mounting groove.

[0039] In order to achieve communication with the air intake channel 11, this embodiment provides an air hole 217 on the first mounting part 211 that communicates with the air passage groove 215, and the air hole 217 is connected to the air intake channel 11.

[0040] For ease of disassembly, in this embodiment, the first suction inlet 21 and the second suction inlet 22 are preferably detachably connected by a pin 26.

[0041] Specifically, the mounting body of the suction positioning structure 2 is provided with a pin hole 25 that penetrates the first mounting part 211 and the second mounting part 221, and the pin 26 is inserted into the pin hole 25.

[0042] In this embodiment, the mold core body 1 is provided with a mounting hole that connects to the product cavity and is adapted to the mounting body of the suction positioning structure 2. The wall of the mounting hole is provided with a limiting groove 12 that is adapted to the pin 26. The mounting body of the suction positioning structure 2 is installed in the mounting hole, and one end of the pin 26 is limited in the limiting groove 12. That is, the pin 26 not only serves to connect the first mounting part 211 and the second mounting part 221, but also cooperates with the limiting groove 12 to perform the limiting function.

[0043] To facilitate the installation of the suction positioning structure 2, this embodiment also provides an installation clearance groove 13 on the side wall of the mounting hole, which is positioned opposite to the limiting groove 12.

[0044] The above describes one embodiment of the mold core of this utility model in detail. Many other embodiments are not described here. In summary, the mold core of this utility model solves the problem of blockage and difficulty in cleaning the suction positioning structure 2, saving a significant amount of mold repair time. Simultaneously, the wavy suction port 24 increases the suction area and suction boundary, preventing the mesh fabric 31 from curling during placement and eliminating suction marks caused by excessive suction pressure on the mesh fabric 31, thus ensuring the quality of the product 3.

[0045] This embodiment also provides an injection mold, which includes the mold core described above. Since the suction positioning structure 2 of the mold core is assembled from two detachably connected first suction inlets 21 and second suction inlets 22, and the suction port 24 of the suction positioning structure 2 is designed in a wavy shape, it can be disassembled and cleaned when material debris blocks the suction port 24, which is convenient and efficient. This solves the problem of difficult cleaning when the suction positioning structure 2 is blocked, saving a lot of mold repair time. The wavy suction port 24 increases the suction area and suction boundary, which can not only prevent the mesh fabric 31 from curling during placement, but also eliminate suction marks caused by excessive suction pressure on the mesh fabric 31, thus ensuring the quality of the product.

[0046] This utility model is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort shall fall within the protection scope of this utility model.

Claims

1. A mold core, comprising a mold core body and an air suction positioning structure disposed on the mold core body, characterized in that, The suction positioning structure includes a first suction inlet and a second suction inlet that are detachably connected. The first suction inlet and the second suction inlet together form a main air channel and a wavy suction port. The main air channel is located inside the mold core body and connects the suction port with the suction channel of the mold core body. The suction port is located inside the product cavity of the mold core body and is used to suck up and position the mesh of the product.

2. The mold core according to claim 1, characterized in that, The first suction inlet includes a first mounting part and a first forming suction part connected together. The second suction inlet includes a second mounting part and a second forming suction part connected together. The first mounting part and the second mounting part cooperate to form the mounting body of the suction positioning structure. The main air passage is located inside the mounting body. The first forming suction part and the second forming suction part cooperate to form the forming suction head of the suction positioning structure. The suction port is located on the forming suction head.

3. The mold core according to claim 2, characterized in that, The first forming suction part is provided with a first toothed structure, and the second forming suction part is provided with a second toothed structure adapted to the first toothed structure. The first toothed structure and the second toothed structure together form the air intake.

4. The mold core according to claim 3, characterized in that, The first molding suction part is provided with a molding suction part receiving groove for installing the second molding suction part, the first toothed structure is disposed in the molding suction part receiving groove, and the second toothed structure is disposed on the side of the second molding suction part close to the first toothed structure.

5. The mold core according to claim 4, characterized in that, The first mounting part is provided with an air passage groove that communicates with the receiving groove of the forming suction part, and the second mounting part and the air passage groove together form the main air passage.

6. The mold core according to claim 5, characterized in that, The first mounting part is provided with a mounting part receiving groove for mounting the second mounting part, and the air passage groove is located in the mounting part receiving groove.

7. The mold core according to claim 6, characterized in that, The first mounting part is provided with an air hole that communicates with the air passage groove, and the air hole is connected to the air intake passage.

8. The mold core according to any one of claims 2 to 7, characterized in that, The first intake manifold and the second intake manifold are detachably connected by a pin.

9. The mold core according to claim 8, characterized in that, The mold core body is provided with a mounting hole that communicates with the product cavity and is adapted to the mounting body. The wall of the mounting hole is provided with a limiting groove that is adapted to the pin. The mounting body is installed in the mounting hole, and the pin is limited in the limiting groove.

10. An injection mold, characterized in that, The injection mold includes the mold core as described in any one of claims 1 to 9.

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