Injection mold with easy demolding

Abstract

The utility model relates to injection mold technical field especially, it relates to an injection mold convenient to demould, including mould body, the shunt plate of setting in mould body, the hot runner cavity of setting in the shunt plate, the injection entrance of setting on mould body, the injection cavity of setting in mould body, the mould cooling assembly of setting in the injection cavity four weeks, the utility model injection cavity outside is provided with mould cooling assembly, the heat -conducting copper ring can absorb and conduct the heat generated in the injection cavity and go out, the cooling of surrounding type setting makes the distance of cooling cavity and heat source very close, and heat transfer path is short and efficient, and multiple partition board, cooperate cooling water through -hole, make cooling water can form even, continuous, large -area flow path in the periphery of entire heat -conducting copper ring, can take away the heat of injection cavity and the heat of the shaped product very fast, improve the demoulding speed, greatly shorten injection cycle, can effectively promote production efficiency.

Description

Technical fields:

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold that is easy to demold. Background technology:

[0002] Injection molding is a method of shaping industrial products. Products are usually made using rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding compression molding and die casting. An injection molding machine (or injection molding machine for short) is the main molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting materials. Injection molding is achieved through the injection molding machine and the mold. Currently, most injection molds on the market require waiting for the mold to cool down before demolding. However, this method wastes a lot of time waiting for the mold to cool down, making it difficult to achieve rapid separation between the injection molded product and the mold, affecting injection molding production efficiency and making it inconvenient to use. Utility Model Content:

[0003] The purpose of this invention is to provide an injection mold that is easy to demold, addressing the shortcomings of existing technologies. It can quickly cool down the molding mold and allow for rapid demolding, making it convenient to use.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an injection mold that facilitates demolding, comprising a mold body, a manifold plate disposed within the mold body, a hot runner cavity disposed within the manifold plate, an injection inlet disposed on the mold body, an injection cavity disposed within the mold body, and a mold cooling assembly disposed around the injection cavity. The injection inlet is connected to the hot runner cavity, and the hot runner cavity is connected to the injection cavity. The mold cooling assembly comprises a heat-conducting copper ring, a cooling sleeve sleeved outside the heat-conducting copper ring, a plurality of partition plates evenly disposed vertically between the heat-conducting copper ring and the cooling sleeve, a water inlet and a water outlet disposed on the cooling sleeve, a plurality of cooling cavities formed between the plurality of partition plates, and cooling water through holes disposed on the partition plates. Each cooling cavity is connected to the others through the cooling water through holes, and both the water outlet and the water inlet are connected to the cooling cavities.

[0005] A further improvement to the above scheme is that the cooling water through holes between two adjacent partition plates are staggered along the axial direction of the cooling sleeve.

[0006] A further improvement to the above solution is that the mold cooling assembly further includes a plurality of cooling water exchange holes, which are inclinedly inserted through a plurality of partition plates, and the cooling water exchange holes between two adjacent partition plates are staggered from each other along the axial direction of the cooling sleeve.

[0007] A further improvement to the above solution is that the partition plate is made of copper, and one end of the partition plate is fixedly connected to the cooling sleeve, while the other end of the partition plate is fixedly connected to the heat-conducting copper ring.

[0008] A further improvement to the above scheme is that solenoid valves are installed at both the water outlet and the water inlet.

[0009] A further improvement to the above solution is that it also includes an auxiliary demolding assembly. The demolding assembly includes a movable groove disposed below the injection cavity, a support plate slidably disposed within the injection cavity, and a sliding drive mechanism for driving the support plate to slide. The support plate is provided with a plurality of auxiliary demolding rods, the bottom of which is fixedly connected to the support plate. The bottom of the injection cavity is provided with a plurality of demolding rod through holes, and the auxiliary demolding rods are disposed through the demolding rod through holes. The top end face of the auxiliary demolding rods is flush with the bottom inner wall of the injection cavity. The power output end of the sliding drive mechanism is driven and connected to the support plate.

[0010] A further improvement to the above solution is that the sliding drive mechanism includes a sliding drive motor disposed at the bottom of the mold body and a drive rod slidably disposed in the movable groove. The power output end of the sliding drive motor is driven and connected to the bottom of the drive rod, and the top of the drive rod is fixedly connected to the bottom of the support plate.

[0011] The beneficial effects of this utility model are as follows: This utility model includes a mold body, a manifold plate disposed within the mold body, a hot runner cavity disposed within the manifold plate, an injection inlet disposed on the mold body, an injection cavity disposed within the mold body, and a mold cooling assembly disposed around the injection cavity. The injection inlet is connected to the hot runner cavity, and the hot runner cavity is connected to the injection cavity. The mold cooling assembly includes a heat-conducting copper ring, a cooling sleeve sleeved outside the heat-conducting copper ring, a plurality of partition plates evenly disposed vertically between the heat-conducting copper ring and the cooling sleeve, a water inlet and a water outlet disposed on the cooling sleeve, a plurality of cooling cavities formed between the plurality of partition plates, and cooling water through holes disposed on the partition plates. Each of the cooling cavities is connected to the other through the cooling water through holes, and the water outlet and the water inlet are both connected to the cooling cavities.

[0012] This utility model features a mold cooling assembly outside the injection cavity. The heat-conducting copper ring absorbs and conducts the heat generated inside the injection cavity. The surrounding cooling arrangement brings the cooling cavity very close to the heat source, resulting in a short and efficient heat transfer path. Multiple partitions, along with cooling water through-holes, allow the cooling water to form a uniform, continuous, and large-area flow path around the entire heat-conducting copper ring. This rapidly removes heat from the injection cavity and the molded product, increasing demolding speed, significantly shortening the injection cycle, and effectively improving production efficiency. Attached image description:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the present invention.

[0015] Figure 3 This is a schematic diagram of the mold cooling assembly of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the auxiliary demolding component of this utility model.

[0017] Explanation of reference numerals in the attached drawings: Mold body 1, Injection inlet 11, Manifold 2, Hot runner cavity 3, Injection cavity 4, Demolding rod through hole 41, Mold cooling assembly 5, Thermal conductive copper ring 51, Cooling sleeve 52, Partition plate 53, Water inlet 521, Water outlet 522, Solenoid valve 523, Cooling cavity 54, Cooling water through hole 55, Cooling water exchange hole 56, Auxiliary demolding assembly 6, Movable groove 61, Support plate 62, Sliding drive mechanism 63, Sliding drive motor 631, Drive rod 632, Auxiliary demolding rod 64. Detailed implementation method:

[0018] The present invention will be further described below with reference to the accompanying drawings, such as... Figure 1-4As shown, this utility model provides an injection mold that facilitates demolding, including a mold body 1, a manifold 2 disposed within the mold body 1, a hot runner cavity 3 disposed within the manifold 2, an injection inlet 11 disposed on the mold body 1, an injection cavity 4 disposed within the mold body 1, and a mold cooling assembly 5 disposed around the injection cavity 4. The injection inlet 11 is connected to the hot runner cavity 3, and the hot runner cavity 3 is connected to the injection cavity 4. The mold cooling assembly 5 includes a heat-conducting copper ring 51, a cooling sleeve 52 sleeved outside the heat-conducting copper ring 51, a plurality of partition plates 53 evenly disposed vertically between the heat-conducting copper ring 51 and the cooling sleeve 52, a water inlet 521 and a water outlet 522 disposed on the cooling sleeve 52, and a plurality of partition plates 53 formed between the partition plates 53. Each cooling cavity 54 has a partition plate 53 with cooling water through holes 55. The cooling cavities 54 are connected to each other through the cooling water through holes 55. The water outlet 522 and the water inlet 521 are both connected to the cooling cavity 54. The injection cavity 4 of this utility model is provided with a mold cooling component 5. The heat-conducting copper ring 51 can absorb and conduct the heat generated in the injection cavity 4. The surrounding cooling arrangement makes the distance between the cooling cavity 54 and the heat source very close, and the heat transfer path is short and efficient. Multiple partition plates 53, together with the cooling water through holes 55, enable the cooling water to form a uniform, continuous and large-area flow path around the entire heat-conducting copper ring 51, which can quickly remove the heat from the injection cavity 4 and the molded product, improve the demolding speed, greatly shorten the injection cycle, and effectively improve production efficiency.

[0019] The cooling water through holes 55 between two adjacent partition plates 53 of this utility model are staggered along the axial direction of the cooling sleeve 52. The staggered cooling water through holes 55 design can effectively increase the flow path of cooling water in the cooling chamber 54. The cooling water flows in multiple cooling chambers 54, effectively reducing the cooling dead zone and preventing uneven local temperature from causing warping and deformation of the injection molded product.

[0020] The mold cooling assembly 5 of this utility model also includes a plurality of cooling water exchange holes 56. The plurality of cooling water exchange holes 56 are inclinedly inserted through a plurality of partition plates 53, and the cooling water exchange holes 56 between two adjacent partition plates 53 are staggered along the axial direction of the cooling sleeve 52. The channels are at a non-orthogonal angle to the wall of the cooling cavity 54. After the forced water flow hits the cavity wall, a vortex is generated. The water flow forms a high-intensity turbulence in the cavity, which completely destroys the thermal boundary layer and can effectively improve the heat exchange capacity and increase the cooling speed.

[0021] The partition plate 53 of this utility model is made of copper, and one end of the partition plate 53 is fixedly connected to the cooling sleeve 52, and the other end of the partition plate 53 is fixedly connected to the heat-conducting copper ring 51. The copper partition plate 53 has a faster heat exchange rate and improves the cooling rate.

[0022] This utility model is equipped with a solenoid valve 523 at both the water outlet 522 and the water inlet 521. Both the water outlet 522 and the water inlet 521 are connected to an external water source. The solenoid valve 523 can control the flow of cooling water and replace the cooling water as needed.

[0023] This utility model also includes an auxiliary demolding component 6. The demolding component includes a movable groove 61 disposed below the injection cavity 4, a support plate 62 slidably disposed within the injection cavity 4, and a sliding drive mechanism 63 for driving the support plate 62 to slide. The support plate 62 is provided with a plurality of auxiliary demolding rods 64. The bottom of the auxiliary demolding rods 64 is fixedly connected to the support plate 62. The bottom of the injection cavity 4 is provided with a plurality of demolding rod through holes 41. The auxiliary demolding rods 64 are disposed through the demolding rod through holes 41, and the top end face of the auxiliary demolding rods 64 is flush with the bottom inner wall of the injection cavity 4. The power output end of the sliding drive mechanism 63 drives the support plate 62. After the demolding cooling component cools the injection molded part in the injection cavity 4, the sliding drive mechanism 63 drives the support plate 62, causing the auxiliary demolding rods 64 to slide upward. The auxiliary demolding rods 64 pass through the demolding rod through holes 41 to push out the cooled and formed injection molded part, which facilitates demolding of the injection molded part and effectively improves demolding efficiency.

[0024] The sliding drive mechanism 63 of this utility model includes a sliding drive motor 631 disposed at the bottom of the mold body 1 and a drive rod 632 slidably disposed in the movable groove 61. The power output end of the sliding drive motor 631 drives and connects to the bottom of the drive rod 632. The top of the drive rod 632 is fixedly connected to the bottom of the support plate 62. The motor drives the drive rod 632 to move the support plate 62 up and down, thereby driving the auxiliary demolding rod 64 on the support plate 62 to slide. When the injection molded product in the injection cavity 4 has cooled down, the auxiliary demolding rod 64 pushes the injection molded product out, effectively improving the demolding efficiency.

[0025] Of course, the above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An injection mold that facilitates demolding, characterized in that: The mold includes a mold body (1), a manifold (2) disposed within the mold body (1), a hot runner cavity (3) disposed within the manifold (2), an injection inlet (11) disposed on the mold body (1), an injection cavity (4) disposed within the mold body (1), and a mold cooling assembly (5) disposed around the injection cavity (4). The injection inlet (11) is connected to the hot runner cavity (3), and the hot runner cavity (3) is connected to the injection cavity (4). The mold cooling assembly (5) includes a thermally conductive copper ring (51) and a cooling sleeve fitted outside the thermally conductive copper ring (51). The cooling sleeve (52) consists of a cylinder (52), several partition plates (53) evenly arranged vertically between the heat-conducting copper ring (51) and the cooling sleeve (52), a water inlet (521) and a water outlet (522) on the cooling sleeve (52), several cooling chambers (54) formed between the partition plates (53), cooling water through holes (55) provided on the partition plates (53), and each cooling chamber (54) connected to each other through the cooling water through holes (55). The water outlet (522) and the water inlet (521) are both connected to the cooling chambers (54).

2. The injection mold for easy demolding according to claim 1, characterized in that: The cooling water through holes (55) between two adjacent partition plates (53) are offset from each other along the axial direction of the cooling sleeve (52).

3. The injection mold for easy demolding according to claim 1, characterized in that: The mold cooling assembly (5) also includes a plurality of cooling water exchange holes (56), which are inclinedly inserted through a plurality of partition plates (53), and the cooling water exchange holes (56) between two adjacent partition plates (53) are staggered from each other along the axial direction of the cooling sleeve (52).

4. The injection mold for easy demolding according to claim 1, characterized in that: The partition plate (53) is made of copper, and one end of the partition plate (53) is fixedly connected to the cooling sleeve (52), and the other end of the partition plate (53) is fixedly connected to the heat-conducting copper ring (51).

5. The injection mold for easy demolding according to claim 1, characterized in that: Solenoid valves (523) are installed in both the outlet (522) and the inlet (521).

6. The injection mold for easy demolding according to claim 1, characterized in that: It also includes an auxiliary demolding assembly (6), which includes an active groove (61) disposed below the injection cavity (4), a support plate (62) slidably disposed in the injection cavity (4), and a sliding drive mechanism (63) for driving the support plate (62) to slide. The support plate (62) is provided with a plurality of auxiliary demolding rods (64), the bottom of the auxiliary demolding rods (64) is fixedly connected to the support plate (62), the bottom of the injection cavity (4) is provided with a plurality of demolding rod through holes (41), the auxiliary demolding rods (64) are disposed through the demolding rod through holes (41), and the top end face of the auxiliary demolding rods (64) is flush with the bottom inner wall of the injection cavity (4). The power output end of the sliding drive mechanism (63) is connected to the support plate (62).

7. The injection mold for easy demolding according to claim 6, characterized in that: The sliding drive mechanism (63) includes a sliding drive motor (631) disposed at the bottom of the mold body (1) and a drive rod (632) slidably disposed in the movable groove (61). The power output end of the sliding drive motor (631) is driven and connected to the bottom of the drive rod (632), and the top of the drive rod (632) is fixedly connected to the bottom of the support plate (62).

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