Anti-overflow plastic mold

Abstract

The utility model relates to the technical field of plastic mould, and disclose a plastic mould of anti -spilling material, including upper mould and lower mould, the surface fixedly connected with anti -spill bin of lower mould, the surface of lower mould is opened the annular groove, both sides of upper mould all are fixedly connected with handle, the surface fixedly connected with annular bin of upper mould, the size of annular bin is compatible with the size of annular groove, the upper surface of anti -spill bin is opened four square grooves, four anti -spill bin's square groove slidingly inserts leak -proof gasket, both sides of anti -spill bin all are opened the recess, the surface fixedly connected with round bar of anti -spill bin recess. This one kind of plastic mould of anti -spilling material, avoid in the process of extruding of upper mould and lower mould, the possible overflow part plastic in lower mould, overflow plastic easily causes product flash, burr, surface flaw, even lead to product structure is not complete, need additional investment rework, cause the situation of cost increase appears.

Description

Technical Field

[0001] This utility model relates to the field of plastic mold technology, and in particular to a plastic mold that prevents material overflow. Background Technology

[0002] Plastic molds are the core equipment in the injection molding process. After the mold is closed, molten plastic is injected into the mold cavity, which then cools and solidifies to form the product. However, during the use of existing plastic molds, due to problems such as tiny gaps on the mold closing surface, fluctuations in injection pressure, or aging of sealing components, molten plastic easily overflows from the gaps. This not only wastes raw materials but also causes defects such as burrs and missing material on the product edges. In addition, the overflowing plastic can stick to the mold surface, increasing the difficulty of cleaning and maintenance costs.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: during the extrusion process of the upper and lower molds, some plastic may overflow from the lower mold. The overflowing plastic can easily cause flash, burrs, surface defects, and even result in incomplete product structure, requiring additional rework and increasing costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is that in the prior art, during the extrusion process of the upper and lower molds, some plastic may overflow from the lower mold. The overflowing plastic can easily cause flash, burrs and surface defects in the product. Therefore, we propose a plastic mold to prevent overflow.

[0005] To achieve the above objectives, this application adopts the following technical solution: a plastic mold for preventing spillage, comprising an upper mold and a lower mold, wherein an anti-spillage chamber is fixedly connected to the surface of the lower mold, and an annular groove is formed on the surface of the lower mold; handles are fixedly connected to both sides of the upper mold, and an annular chamber is fixedly connected to the surface of the upper mold, wherein the size of the annular chamber is adapted to the size of the annular groove.

[0006] Preferably, the upper surface of the overflow compartment has four square grooves, and the four overflow compartments are slidably fitted with anti-leakage gaskets.

[0007] Preferably, the overflow containment has grooves on both sides, a round rod is fixedly connected to the surface of the groove, a single-hole plate is fixedly connected to one end of the round rod, an insert rod is slidably inserted into the single-hole plate, a round plate is fixedly connected to one end of the insert rod, and a round hole is opened on the surface of the leak-proof gasket, the size of the round hole of the leak-proof gasket is adapted to the size of the insert rod.

[0008] Preferably, the arc surface of the insertion rod is fitted with a spring, and the two ends of the spring are fixedly connected to the circular plate and the single-hole plate, respectively.

[0009] Preferably, a connecting rod is fixedly connected to the surface of the circular plate, a limit plate is rotatably connected to the arc surface of the connecting rod, and a blocking plate is fixedly connected to the surface of the anti-overflow groove.

[0010] Preferably, the surface of the leak-proof gasket is coated with a special coating, and the material of the special coating of the leak-proof gasket is an alumina ceramic coating.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] This invention achieves the effect of preventing plastic from overflowing from the lower mold, avoiding the possibility of plastic overflowing from the lower mold during the extrusion process of the upper and lower molds. Overflowing plastic can easily cause flash, burrs, surface defects, and even lead to incomplete product structure, requiring additional rework and increasing costs, thus improving the practicality of the device. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the anti-overflow compartment 6 in this utility model;

[0016] Figure 3 This is a schematic diagram of the leak-proof gasket in this utility model;

[0017] Figure 4 In this utility model Figure 4 A structural diagram.

[0018] Illustrations: 1. Lower mold; 2. Upper mold; 3. Annular chamber; 4. Handle; 5. Annular groove; 6. Overflow chamber; 7. Leak-proof gasket; 8. Round rod; 9. Single-hole plate; 10. Insert rod; 11. Round plate; 12. Connecting rod; 13. Limiting plate; 14. Blocking plate; 15. Spring. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this utility model. Therefore, the following specific embodiments and accompanying drawings are merely exemplary descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction on the technical solution of this utility model.

[0020] Reference Figures 1-4 As shown, this utility model provides a technical solution: a plastic mold for preventing material overflow, including an upper mold 2 and a lower mold 1. An overflow chamber 6 is fixedly connected to the surface of the lower mold 1, and an annular groove 5 is formed on the surface of the lower mold 1. Handles 4 are fixedly connected to both sides of the upper mold 2, and an annular chamber 3 is fixedly connected to the surface of the upper mold 2. The size of the annular chamber 3 matches the size of the annular groove 5, achieving the effect of preventing plastic overflow from the lower mold 1. This avoids the possibility of plastic overflowing from the lower mold 1 during the extrusion process between the upper mold 2 and the lower mold 1. Overflowing plastic can easily cause flash, burrs, surface defects, and even lead to incomplete product structure, requiring additional rework and increasing costs. The situation improves the practicality of the device. Four square slots are provided on the upper surface of the overflow chamber 6. Leak-proof gaskets 7 are slidably inserted into these slots, effectively filling the gap between the upper mold 2 and the lower mold 1. This reduces the likelihood of wear and deformation on the surfaces of the upper mold 2 and lower mold 1 after prolonged use, preventing gaps from forming. The elastic deformation of the leak-proof gaskets 7 fills these gaps, preventing plastic overflow and thus avoiding burrs and rough edges. Grooves are provided on both sides of the overflow chamber 6. A round rod 8 is fixedly connected to the surface of each groove. A single-hole plate 9 is fixedly connected to one end of the round rod 8. An insert rod 10 is slidably inserted into the single-hole plate 9. One end of the insert rod 10... A circular plate 11 is fixedly connected to the end of the insert rod 10. A circular hole is formed on the surface of the leak-proof gasket 7, the size of which matches the size of the insert rod 10. This allows for the replacement of the leak-proof gasket 7 and prevents wear and aging that could affect its ability to fill gaps and reduce its sealing performance after prolonged use. A spring 15 is fitted onto the arc surface of the insert rod 10. The two ends of the spring 15 are fixedly connected to the circular plate 11 and the single-hole plate 9, respectively, improving the stability of the insert rod 10 and continuously applying a stable elastic force to ensure that the insert rod 10 always fits tightly against the leak-proof gasket 7, maintaining constant pressure. A connecting rod 1 is fixedly connected to the surface of the circular plate 11. 2. The arc surface of the connecting rod 12 is rotatably connected to the limiting plate 13, and the surface of the anti-overflow chamber 6 is fixedly connected to the blocking plate 14, which achieves the effect of limiting the position of the insertion rod 10. This prevents the insertion rod 10 from being affected by external forces when the workers are installing the anti-leakage gasket 7, which could cause the insertion rod 10 to shift. The shifted insertion rod 10 may affect the installation of the anti-leakage gasket 7, and the workers would have to pull the insertion rod 10 by hand, which would increase the workload of the workers. The surface of the anti-leakage gasket 7 is coated with a special coating. The material of the special coating of the anti-leakage gasket 7 is an alumina ceramic coating, which is fully compatible with the high temperature injection molding scenario of engineering plastics and will not soften, deform or fail due to high temperature.

[0021] Working principle: When the operator needs to use the upper mold 2 and lower mold 1, the operator can fill the lower mold 1 with plastic. Then, the operator can push the upper mold 2 to move the annular chamber 3 within the lower mold 1. When the upper mold 2 and lower mold 1 are about to be completely fitted, the plastic in the lower mold 1 is squeezed upward by the upper mold 2 and comes into contact with the surface of the anti-overflow chamber 6. The operator then continues to push the upper mold 2 to move the annular chamber 3 within the annular groove 5 until the surface of the upper mold 2 is in contact with the surface of the anti-leakage gasket 7. The surface of the anti-leakage gasket 7 is coated with an alumina ceramic coating, which is fully suitable for high-temperature injection molding of engineering plastics and will not soften, deform, or fail due to high temperatures. At this point, there is no gap between the upper mold 2 and lower mold 1, and the operator can then proceed with further operations. When the operator needs to replace the anti-leakage gasket 7, the operator first rotates the limiting plate 13 on the arc surface of the connecting rod 12 until the limiting plate... After rotating 13 to 90 degrees, the operator can pull the insertion rod 10 to slide within the single-hole plate 9. At this time, the spring 15 is stretched until the position of the limiting plate 13 passes the blocking plate 14. At this time, the arc surface of the insertion rod 10 is completely separated from the round hole of the anti-leakage gasket 7. Then, the operator can rotate the limiting plate 13 until the surface of the limiting plate 13 is in contact with the blocking plate 14. Then, the operator can pull the anti-leakage gasket 7 to slide on the surface of the square groove of the anti-overflow chamber 6 until the surface of the anti-leakage gasket 7 is separated from the square groove of the anti-overflow chamber 6. Then, the operator can replace the new anti-leakage gasket 7, which achieves the effect of preventing plastic from overflowing from the lower mold 1. This avoids the possibility of some plastic overflowing from the lower mold 1 during the extrusion process of the upper mold 2 and the lower mold 1. Overflowing plastic can easily cause flash, burrs, surface defects, and even lead to incomplete product structure, requiring additional rework and increasing costs. This improves the practicality of the device.

[0022] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A plastic mold for preventing material spillage, characterized in that, It includes an upper mold (2) and a lower mold (1). The surface of the lower mold (1) is fixedly connected to an anti-overflow chamber (6). The surface of the lower mold (1) is provided with an annular groove (5). Both sides of the upper mold (2) are fixedly connected to handles (4). The surface of the upper mold (2) is fixedly connected to an annular chamber (3). The size of the annular chamber (3) is adapted to the size of the annular groove (5).

2. The plastic mold for preventing material spillage according to claim 1, characterized in that: The upper surface of the overflow chamber (6) is provided with four square grooves, and the four overflow chambers (6) are slidably inserted with anti-leakage gaskets (7).

3. A plastic mold for preventing material spillage according to claim 2, characterized in that: The overflow chamber (6) has grooves on both sides. A round rod (8) is fixedly connected to the surface of the groove of the overflow chamber (6). A single-hole plate (9) is fixedly connected to one end of the round rod (8). A plug rod (10) is slidably inserted into the single-hole plate (9). A round plate (11) is fixedly connected to one end of the plug rod (10). A round hole is opened on the surface of the leak-proof gasket (7). The size of the round hole of the leak-proof gasket (7) is adapted to the size of the plug rod (10).

4. A plastic mold for preventing material spillage according to claim 3, characterized in that: The arc surface of the insertion rod (10) is fitted with a spring (15), and the two ends of the spring (15) are fixedly connected to the circular plate (11) and the single-hole plate (9) respectively.

5. A plastic mold for preventing material spillage according to claim 3, characterized in that: A connecting rod (12) is fixedly connected to the surface of the circular plate (11), and a limiting plate (13) is rotatably connected to the arc surface of the connecting rod (12). A blocking plate (14) is fixedly connected to the surface of the groove of the anti-overflow chamber (6).

6. A plastic mold for preventing material spillage according to claim 2, characterized in that: The surface of the leak-proof gasket (7) is coated with a coating material, which is an alumina ceramic coating.

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