Temperature-stabilized injection mold heat flow mechanism

Abstract

This application relates to a temperature-stabilized injection mold heat flow mechanism, which includes, from top to bottom, an upper fixed plate, an upper mold base, a mold cavity base, and a lower mold base. The upper fixed plate has a sprue for material injection. A connecting channel is provided inside the upper mold base, through which the material from the sprue is injected. The connecting channel passes through the mold cavity base and carries the material into it. A connecting pipe is provided on the connecting channel, connecting to the mold cavity base. The application also includes a heat flow mechanism mounted on the connecting channel to maintain a stable material temperature during injection. This application offers the advantages of reduced injection time, faster mold molding, and stable temperature during injection.

Description

Technical Field

[0001] This application relates to the field of mold technology, and in particular to a temperature-stabilized injection mold heat flow mechanism. Background Technology

[0002] In the mold industry, molds are various dies and tools used in injection molding, blow molding, extrusion, die casting, forging, smelting, stamping, and other methods to obtain the desired products. In short, a mold is a tool used to create shaped objects; this tool is composed of various parts, and different molds are composed of different parts.

[0003] In common molds, when the raw material is injected into the mold cavity from the injection port during injection molding, the raw material needs to maintain a high temperature and the temperature needs to be stable. The mold temperature in different areas of the mold cavity should be consistent. Inconsistent mold temperature can easily lead to the high temperature areas cooling slowly and having a high surface gloss, while the low temperature areas cooling quickly have a low surface gloss or even become hazy. This results in obvious differences in appearance between different areas of the same product or between products from different mold batches. Utility Model Content

[0004] In order to stabilize the temperature during mold injection, this application provides a temperature-stabilized injection mold heat flow mechanism.

[0005] This application provides a temperature-stabilized injection mold heat flow mechanism, which adopts the following technical solution:

[0006] A temperature-stabilized injection mold heat flow mechanism includes an upper fixed plate, an upper mold base, a mold cavity base, and a lower mold base arranged sequentially from top to bottom. The upper fixed plate has a sprue for injecting raw material. The upper mold base has a connecting channel through which the raw material from the sprue is injected. The connecting channel passes through the mold cavity base and carries the raw material into the mold cavity base. A connecting pipe is provided on the connecting channel and connects to the mold cavity base. The mechanism also includes a heat flow mechanism disposed on the connecting channel to maintain a stable temperature of the raw material during injection molding.

[0007] By adopting the above technical solution, during mold injection, the raw material is injected through the sprue, and the injected raw material flows into the connecting pipe through the sprue. It then enters the mold cavity through the connecting pipe. The heat flow mechanism set on the connecting channel controls the temperature of the raw material in the connecting channel, so that the temperature of the raw material remains stable when it is injected into the mold cavity, and the temperature is stable during mold injection.

[0008] Optionally, the heat flow mechanism includes an injection nozzle body disposed on the connecting channel and a heat pipe disposed on the connecting channel. The injection nozzle body passes through the connecting channel and is located inside the connecting pipe. The heat pipe is connected to the injection nozzle body, and the raw material is injected into the mold cavity through the injection nozzle body.

[0009] By adopting the above technical solution, the heat pipe provides a stable temperature. The heat pipe is connected to the injection nozzle body, and the raw material is injected into the mold cavity through the injection nozzle body. The heat pipe makes the temperature of the raw material in the injection nozzle body stable.

[0010] Optionally, several connecting tubes are provided, and several injection nozzle bodies are provided, with each injection nozzle body corresponding to a connecting tube.

[0011] By adopting the above technical solution, the use of multiple connecting pipes enables faster mold injection molding time and improves mold production efficiency.

[0012] Optionally, heat pipes are provided at both the top and bottom of the connection channel.

[0013] By adopting the above technical solution, the two-layer heat pipes enable the mold temperature to rise faster and be more stable during injection molding.

[0014] Optionally, the heat pipe is provided with several temperature sensing wires.

[0015] By adopting the above technical solution, the temperature sensing wire is used to detect the temperature of the heat pipe, which facilitates the control system to adjust the temperature.

[0016] Optionally, the upper mold base has a groove, and the connecting channel is disposed in the groove.

[0017] By adopting the above technical solution, the groove facilitates the installation of the connecting channel, and the installation of the connecting channel is faster.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The heat flow mechanism on the connecting channel controls the temperature of the material raw material in the connecting channel, so that the temperature of the material raw material remains stable when it is injected into the mold cavity, and the temperature of the mold is stabilized during injection through the heat flow mechanism;

[0020] 2. Several connecting pipes improve mold production efficiency;

[0021] 3. The two-layer heat pipes allow the mold temperature to rise faster and be more stable during injection molding. Attached Figure Description

[0022] Figure 1 This is an overall schematic diagram of the temperature-stabilized injection mold heat flow mechanism in the embodiment.

[0023] Figure 2 This is a partial structural schematic diagram of the temperature-stabilized injection mold heat flow mechanism in an embodiment.

[0024] Figure 3 This is a schematic diagram of the connection channel in an embodiment.

[0025] Figure 4 yes Figure 2 Enlarged view at point A.

[0026] Explanation of reference numerals in the attached drawings: 1. Upper fixing plate; 2. Upper mold base; 3. Mold cavity base; 4. Lower mold base; 5. Sprue; 6. Connecting channel; 7. Connecting pipe; 8. Heat flow mechanism; 81. Injection nozzle body; 82. Heat pipe; 91. Temperature sensing wire; 92. Groove. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] This application discloses a temperature-stabilized injection mold heat flow mechanism. (Refer to...) Figure 1 , Figure 2 , Figure 3 The temperature-stabilized injection mold heat flow mechanism includes an upper fixed plate 1, an upper mold base 2, a mold cavity base 3, and a lower mold base 4 arranged sequentially from top to bottom. The upper fixed plate 1 has a sprue 5 for material injection. The upper mold base 2 has a connecting channel 6, through which the material from the sprue 5 is injected. The connecting channel 6 passes through the mold cavity base 3 and flows the material into the mold cavity base 3. A connecting pipe 7 is fixed on the connecting channel 6 and connects to the mold cavity base 3. Several connecting pipes 7 are fixed. The upper mold base 2 has a groove 92, and the connecting channel 6 is fixed in the groove 92 without protruding from the groove opening. Several through holes for the connecting pipe 7 to pass through are opened at the bottom of the groove 92.

[0029] Reference Figure 2 , Figure 3 , Figure 4 The temperature-stabilized injection mold heat flow mechanism also includes a heat flow mechanism 8 disposed on the connecting channel 6. The heat flow mechanism 8 is used to maintain a stable temperature of the raw material during injection molding. The heat flow mechanism 8 includes an injection nozzle body 81 disposed on the connecting channel 6 and a heat pipe 82 fixed on the connecting channel 6. The injection nozzle body 81 passes through the connecting channel 6 and is located inside the connecting pipe 7.

[0030] Reference Figure 2 , Figure 3 , Figure 4 Heat pipe 82 is connected to a temperature control box, which monitors and controls the temperature of the entire system, setting and adjusting the temperature accordingly. Heat pipe 82 is connected to the injection nozzle body 81, through which raw materials are injected into the mold cavity. Several injection nozzle bodies 81 are fixed, each corresponding to a connecting pipe 7. Heat pipes 82 are installed at both the top and bottom of the connecting channel 6. Several temperature sensing wires 91 are installed on the heat pipe 82.

[0031] The implementation principle of the temperature-stabilized injection mold heat flow mechanism in this application embodiment is as follows: During mold injection, the raw material is injected through the sprue 5, and the injected raw material flows into the connecting pipe 7 through the sprue 5. The temperature control box raises the temperature of the heat pipe 82 to a preset value, and the raw material is injected into the mold cavity through the injection nozzle body 81. The heat pipe 82 stabilizes the temperature of the raw material in the injection nozzle body, so that the temperature remains stable when the raw material is injected into the mold cavity. Multiple connecting pipes 7 reduce the mold injection time, make the mold injection molding faster, and stabilize the temperature during mold injection.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A temperature-stabilized injection mold heat flow mechanism, comprising an upper fixed plate (1), an upper mold base (2), a mold cavity base (3), and a lower mold base (4) arranged sequentially from top to bottom, characterized in that: The upper fixed plate (1) is provided with a sprue (5) for material injection. The upper mold base (2) is provided with a connecting channel (6) for material injection into the connecting channel (6). The connecting channel (6) passes through the mold cavity base (3) and flows the material into the mold cavity base (3). The connecting channel (6) is provided with a connecting pipe (7) which connects to the mold cavity base (3). The connecting channel (6) also includes a heat flow mechanism (8) provided on the connecting channel (6) for maintaining the temperature of the material stable during injection molding.

2. The temperature-stabilized injection mold heat flow mechanism according to claim 1, characterized in that: The heat flow mechanism (8) includes an injection nozzle body (81) disposed on the connecting channel (6) and a heat pipe (82) disposed on the connecting channel (6). The injection nozzle body (81) passes through the connecting channel (6) and is located inside the connecting pipe (7). The heat pipe (82) is connected to the injection nozzle body (81). The raw material is injected into the mold cavity through the injection nozzle body (81).

3. The temperature-stabilized injection mold heat flow mechanism according to claim 2, characterized in that: Several connecting tubes (7) are provided, and several injection nozzle bodies (81) are provided. The injection nozzle bodies (81) and connecting tubes (7) are provided in a one-to-one correspondence.

4. The temperature-stabilized injection mold heat flow mechanism according to claim 2, characterized in that: Heat pipes (82) are provided at both the top and bottom of the connecting channel (6).

5. The temperature-stabilized injection mold heat flow mechanism according to claim 2, characterized in that: The heat pipe (82) is provided with several temperature sensing wires (91).

6. The temperature-stabilized injection mold heat flow mechanism according to claim 1, characterized in that: The upper mold base (2) has a groove (92) and the connecting channel (6) is disposed in the groove (92).

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