Injection mold with high cooling efficiency

Abstract

The utility model discloses an injection mold with high cooling efficiency, which relates to the technical field of efficient cooling of injection molds and comprises a supporting table, a T-shaped fixing frame is fixedly connected to one side of the supporting table, an abutting plate is fixedly connected to the other side of the T-shaped fixing frame, limiting rods are fixedly connected to four corners of the other side of the abutting plate, and an upper mold plate is mounted in the supporting table. According to the utility model, the upper mold plate and the lower mold plate are matched, and the shape-following water channel is designed in the upper mold plate and the lower mold plate, so that the problems of non-uniform cooling and low efficiency possibly caused by the design that a straight hole cooling channel is usually used in a traditional cooling system are solved; the cooling efficiency is improved; and through cooperation of the lower mold plate and the cooling cover, the problems that traditional cooling time is long, and interface cooling is not uniform are solved, and the cooling quality and the cooling efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of high-efficiency cooling technology for injection molds, and in particular to an injection mold with high cooling efficiency. Background Technology

[0002] The cooling efficiency of injection molds directly affects the production cycle and product quality. Traditional cooling systems typically use straight-hole cooling channels, but this design may suffer from uneven cooling and low efficiency. Traditional molds often use straight-hole or spiral cooling channels, which are difficult to fully conform to the complex curved surfaces of the cavity, resulting in large local temperature gradients and uneven cooling. Cooling time accounts for 70%-80% of the injection molding cycle. Conventional water cooling requires the mold temperature to be reduced to below 60°C, which is time-consuming. The thermal conductivity of steel is about 50 W / (m·K), while the thermal conductivity of plastic parts is only 0.2 W / (m·K). Interface thermal resistance becomes a bottleneck for heat dissipation, affecting the heat dissipation effect of the mold. Therefore, the above problems need to be improved. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an injection mold with high cooling efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a high-cooling-efficiency injection mold, comprising a support platform, a T-shaped fixing frame fixedly connected to one side of the support platform, a backing plate fixedly connected to the other side of the T-shaped fixing frame, limit rods fixedly connected to the four corners of the other side of the backing plate, and an upper mold plate installed inside the support platform, a conformal water channel installed inside the upper mold plate, and a feed pipe fixedly connected to the other end of the upper mold plate.

[0005] Preferably, a lower mold plate is provided between the upper mold plate and the abutment plate. One end of the lower mold plate has a heat dissipation groove, and a cooling cover is fixedly connected to one end of the heat dissipation groove. A conformal water channel is installed inside the lower mold plate.

[0006] Preferably, the T-shaped fixing frame has a double-layer structure, and four sets of telescopic cylinders are installed inside the upper part of the T-shaped fixing frame. The output shafts of the four sets of telescopic cylinders pass through the abutment plate and are connected to the lower mold plate.

[0007] Preferably, a boss is fixed to the other side of the abutment plate, and the other end of the boss abuts against a fixing rod. The other end of the fixing rod passes through the lower mold plate and is fixed to a push plate. A spring is sleeved on the outside of the fixing rod, one end of the spring abuts against the fixing rod, and the other end of the spring abuts against the lower mold plate.

[0008] Preferably, the limiting rod passes through the cooling cover and the lower mold plate, and the limiting rod passes through and is fixed to one end of the upper mold plate.

[0009] Preferably, a collection box is installed at the lower end of the support platform. The collection box is located at the lower end where the upper mold plate and the lower mold plate are attached, and the collection box is installed at the lower end of the lower mold plate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation between the upper mold plate and the lower mold plate, and due to its internal design of conformal water channels, solves the problem that traditional cooling systems usually use straight hole cooling channels, which may have problems such as uneven cooling and low efficiency, thus improving the cooling efficiency; through the cooperation between the lower mold plate and the cooling cover, it is easy to solve the problems of long cooling time and uneven interface cooling in traditional systems, thus improving the cooling quality and cooling efficiency. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0012] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model;

[0013] Figure 2 This is a half-sectional schematic diagram of the overall structure proposed in this utility model;

[0014] Figure 3 This is a schematic diagram of the lower mold plate structure proposed in this utility model;

[0015] Figure 4 This is a schematic diagram of the cooling shroud structure proposed in this utility model;

[0016] Figure 5 This is a schematic diagram of the fixing rod structure proposed in this utility model.

[0017] The following are the components listed in the diagram: 1. Support platform; 2. T-shaped fixing frame; 3. Telescopic cylinder; 4. Support plate; 5. Limiting rod; 6. Feed pipe; 7. Upper mold plate; 8. Lower mold plate; 9. Cooling cover; 10. Collection box; 11. Fixing rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example: See Figure 1-5This utility model discloses a high-efficiency injection mold, including a support platform 1, which facilitates stable operation of the tool; a T-shaped fixing frame 2 is fixedly connected to one side of the support platform 1, which facilitates the fixing of a telescopic cylinder 3; a back plate 4 is fixedly connected to the other side of the T-shaped fixing frame 2, which facilitates the limiting of the lower mold plate 8 and the upper mold plate 7 by means of limiting rods 5; limiting rods 5 are fixedly connected to the four corners of the other side of the back plate 4, and the upper mold plate 7 is installed inside the support platform 1. The upper mold plate 7 has a conformal water channel installed inside, which facilitates rapid cooling of the mold; and a feed pipe 6 is fixedly connected to the other end of the upper mold plate 7. A lower mold plate 8 is provided between the upper mold plate 7 and the back plate 4. A heat dissipation groove is opened at one end of the lower mold plate 8, and a cooling cover 9 is fixedly connected to one end of the heat dissipation groove, which facilitates rapid cooling of the mold by means of different cooling methods; and conformal water channels are installed inside the lower mold plate 8.

[0020] In this utility model, the T-shaped fixing frame 2 has a double-layer structure, and four sets of telescopic cylinders 3 are installed inside the upper part of the T-shaped fixing frame 2. The telescopic cylinders 3 facilitate the movement of the lower mold plate 8. The output shafts of the four sets of telescopic cylinders 3 pass through the abutment plate 4 and are connected to the lower mold plate 8. A boss is fixed to the other side of the abutment plate 4, and the other end of the boss abuts against the fixing rod 11. The fixing rod 11 facilitates the pushing of the cooled mold into the collection box 10. The other end of the fixing rod 11 passes through the lower mold plate 8 and is fixed to a push plate. A spring is sleeved on the outside to provide self-driving force for the fixing rod 11; one end of the spring abuts against the fixing rod 11 and the other end of the spring abuts against the lower mold plate 8; the limiting rod 5 passes through the cooling cover 9 and the lower mold plate 8, and the limiting rod 5 passes through and is fixed to one end of the upper mold plate 7; a collection box 10 is installed at the lower end of the support platform 1 to facilitate the collection of cooling molds; the collection box 10 is placed at the lower end where the upper mold plate 7 and the lower mold plate 8 are attached; the collection box 10 is installed at the lower end of the lower mold plate 8.

[0021] Working principle: When using this utility model, power on the equipment and start the telescopic cylinder 3 at the upper end of the T-shaped fixing frame 2. The telescopic cylinder 3 pushes the lower mold plate 8 along the limiting rod 5 to the upper mold plate 7 fixed by the support platform 1. The injection plastic enters the upper mold plate 7 through the feed pipe 6 and stops injection. Cooling liquid is introduced into the conformal water channel in the upper mold plate 7 and the lower mold plate 8, as well as into the cooling cover 9 on one side of the lower mold plate 8, to remove the heat from the mold. After cooling, the telescopic cylinder 3 will retract. Since the mold volume in the lower mold plate 8 is mostly large, the lower mold plate 8 will carry the cooled mold out of the upper mold plate 7. When the telescopic cylinder 3 drives the lower mold plate 8 to retract to a certain position, one end of the fixing rod 11 will gradually abut against the boss on the abutment plate 4. Through the spring at one end of the cooling cover 9, the end of the fixing rod 11 that abuts against the lower mold plate 8 will extend out, pushing the cooled mold into the collection box 10. The above steps can be repeated.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-cooling-efficiency injection mold, comprising a support platform (1), characterized in that: A T-shaped fixing frame (2) is fixedly connected to one side of the support platform (1), and a backing plate (4) is fixedly connected to the other side of the T-shaped fixing frame (2). Limiting rods (5) are fixedly connected to the four corners of the other side of the backing plate (4). An upper mold plate (7) is installed inside the support platform (1). A conformal water channel is installed inside the upper mold plate (7), and a feed pipe (6) is fixedly connected to the other end of the upper mold plate (7).

2. The injection mold with high cooling efficiency according to claim 1, characterized in that: A lower mold plate (8) is provided between the upper mold plate (7) and the abutment plate (4). A heat dissipation groove is opened at one end of the lower mold plate (8), and a cooling cover (9) is fixedly connected to one end of the heat dissipation groove. A conformal water channel is installed inside the lower mold plate (8).

3. The injection mold with high cooling efficiency according to claim 1, characterized in that: The T-shaped fixing frame (2) has a double-layer structure, and four sets of telescopic cylinders (3) are installed inside the upper part of the T-shaped fixing frame (2). The output shafts of the four sets of telescopic cylinders (3) pass through the abutment plate (4) and are connected to the lower mold plate (8).

4. The injection mold with high cooling efficiency according to claim 3, characterized in that: A boss is fixed to the other side of the abutment plate (4), and the other end of the boss abuts against the fixing rod (11). The other end of the fixing rod (11) passes through the lower mold plate (8) and is fixed to a push plate. A spring is sleeved on the outside of the fixing rod (11). One end of the spring abuts against the fixing rod (11), and the other end of the spring abuts against the lower mold plate (8).

5. The injection mold with high cooling efficiency according to claim 2, characterized in that: The limiting rod (5) passes through the cooling cover (9) and the lower mold plate (8), and the limiting rod (5) passes through and is fixed to one end of the upper mold plate (7).

6. The injection mold with high cooling efficiency according to claim 4, characterized in that: A collection box (10) is installed at the lower end of the support platform (1). The collection box (10) is placed at the lower end where the upper mold plate (7) and the lower mold plate (8) are attached. The collection box (10) is installed at the lower end of the lower mold plate (8).

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