Gas-assisted injection mold for automobile plug production

Abstract

The utility model provides a gas-assisted injection mold for automobile plug production, and relates to the technical field of gas-assisted injection molds, and the gas-assisted injection mold comprises a plug gas-assisted injection mold body and a gas release assembly. A gas exhaust preformed hole is formed in the plug gas-assisted injection mold body; a U-shaped mounting frame is arranged on the side face of the plug gas-assisted injection mold body, a pressure relief needle is connected to the U-shaped mounting frame, the U-shaped mounting frame is mounted on the side face of the plug gas-assisted injection mold body, so that the pressure relief needle can be located in a gas exhaust preformed hole, and a gas flow control valve and a one-way electromagnetic valve are mounted at the position, located outside the plug gas-assisted injection mold body, of the pressure relief needle. And through the arrangement of the one-way electromagnetic valve, external gas can be prevented from entering the mold through the pressure relief needle when the gas is exhausted, and the influence on the appearance and the quality of the automobile plug during exhausting is prevented. And through the arrangement of the gas flow control valve, the gas discharging speed can be controlled, the gas discharging effect is improved, and then the attractiveness of the automobile plug is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of gas-assisted injection molds, and in particular, to a gas-assisted injection mold for producing automobile plugging parts. Background Art

[0002] When producing automobile plugging parts, gas-assisted injection molds are generally used for production. After gas-assisted molding, the high-pressure gas in the hollow cavity of the product is not discharged, resulting in a large pressure difference between the internal and external environments of the product, which will cause surface scratches on the product drop cavity and mold opening and bursting at weak points of the product or weak areas of the overflow well, seriously affecting the product yield and factory quality, and increasing subsequent maintenance and investment costs. Therefore, it is necessary to depressurize the product. For example, a gas-assisted injection mold degassing device disclosed in China's publication number CN217729544U discharges gas through a degassing needle. However, when the internal gas is discharged, external air can easily enter the mold through the degassing needle, thereby affecting the appearance and quality of the automobile plugging parts. Summary of the invention

[0003] In order to overcome the existing deficiencies, an embodiment of the present application provides a gas-assisted injection mold for the production of automobile plugging parts, which can solve the problem that the above-mentioned deflation needle discharges gas therefrom, but when the internal gas is discharged, the external air can easily enter the mold through the deflation needle, thereby affecting the appearance and quality of the automobile plugging parts.

[0004] The technical solution adopted by the embodiment of the present application to solve its technical problem is: a gas-assisted injection mold for producing automobile plugging parts, including a plugging part gas-assisted injection mold body and a venting component.

[0005] A plugging gas-assisted injection mold body, wherein a gas exhaust reserved hole is arranged inside the plugging gas-assisted injection mold body;

[0006] The air relief component includes a U-shaped mounting frame, to which a pressure relief needle is connected. The U-shaped mounting frame is installed on the side of the plugging gas-assisted injection mold body so that the pressure relief needle can be located inside the gas exhaust reserved hole. The pressure relief needle is located outside the plugging gas-assisted injection mold body and is equipped with a gas flow control valve and a one-way solenoid valve.

[0007] In a specific implementation manner, a moving part is threadedly provided on the U-shaped mounting frame, and the moving part is connected to the pressure relief needle.

[0008] In a specific embodiment, the moving part includes a knob and an adjusting screw, wherein the adjusting screw is fixedly connected to the knob, and the other end of the adjusting screw is threadedly connected through the U-shaped mounting frame and is rotatably connected to the pressure relief needle.

[0009] In a specific implementation manner, a connecting piece is provided on the pressure relief needle, and the adjusting screw is rotatably connected to the connecting piece.

[0010] In a specific embodiment, the connecting member includes a fixed sleeve, which is fixedly arranged on the end of the pressure relief needle, and connecting rods are arranged in a ring array on the fixed sleeve. A connecting plate is fixedly connected to the other opposite side of the connecting rod, and the adjusting screw is rotatably connected to the connecting plate.

[0011] In a specific embodiment, guide members are provided on the top and bottom of the connecting plate, and the two guide members are slidably connected to the opposite surfaces of the inner wall of the U-shaped mounting frame respectively.

[0012] In a specific embodiment, the two guide members each include a guide rod and a slider, the two guide rods are respectively fixedly connected to the top and bottom of the connecting plate, the slider is connected to the other end of the guide rod, and the two sliders are respectively slidably connected to the opposite surfaces of the inner wall of the U-shaped mounting frame.

[0013] In a specific implementation manner, the opposite surfaces of the inner wall of the U-shaped mounting frame are provided with sliding grooves that cooperate with the sliding block.

[0014] The advantages of the embodiments of the present application are:

[0015] 1. The setting of the one-way solenoid valve can prevent external gas from entering the mold through the pressure relief needle when exhausting gas, thereby preventing the appearance and quality of automobile plugging parts from being affected during exhaust.

[0016] 2. By setting the gas flow control valve, the speed of gas discharge can be controlled, thereby improving the effect of gas discharge and ensuring the aesthetics of the automobile plug. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a gas-assisted injection mold for producing automobile plugging parts provided in an embodiment of the present application;

[0018] Figure 2 A schematic diagram of the structure of the deflation assembly provided in the embodiment of the present application;

[0019] Figure 3 A schematic diagram of the connection relationship between the moving part and the connecting part provided in the embodiment of the present application;

[0020] Figure 4 Provided for the implementation of this application Figure 2 Enlarged structural diagram at A in the middle.

[0021] In the figure: 10-blocking gas-assisted injection mold body; 20-air relief component; 210-U-shaped mounting frame; 211-slide; 220-pressure relief needle; 230-gas flow control valve; 240-one-way solenoid valve; 250-connecting part; 251-fixing sleeve; 252-connecting rod; 253-connecting plate; 260-moving part; 261-knob; 262-adjusting screw; 270-guide part; 271-guide rod; 272-slider; 280-mounting plate. DETAILED DESCRIPTION

[0022] The technical solution in the embodiment of the present application is to solve the problem that the above-mentioned deflation needle discharges gas, but when the internal gas is discharged, the external air can easily enter the mold through the deflation needle, thereby affecting the appearance and quality of the automobile sealing part. The overall idea is as follows:

[0023] See also Figure 1-Figure 4 A gas-assisted injection mold for producing automobile plugging parts includes a plugging part gas-assisted injection mold body 10 and a venting component 20.

[0024] Among them, the plugging part gas-assisted injection molding mold body 10 can perform injection molding on automobile plugging parts, and the air release component 20 can discharge the gas injected during the mold injection molding, thereby improving the product quality of the automobile plugging parts.

[0025] See also Figure 1 , a gas-assisted injection mold body 10 of the plugging part, and a gas exhaust reserved hole is arranged inside the gas-assisted injection mold body 10 of the plugging part; wherein, the automobile plugging part is injection-molded inside the gas-assisted injection mold body 10, and after the completion, excess gas is discharged through the gas exhaust reserved hole to prevent gas residue inside the automobile plugging part product and affect the finished product quality of the automobile plugging part.

[0026] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The air release assembly 20 includes a U-shaped mounting frame 210. Specifically, mounting plates 280 are fixedly connected at both ends of the U-shaped mounting frame 210, and the mounting plates 280 are connected to the side of the mold. A pressure relief needle 220 is connected to the U-shaped mounting frame 210. The U-shaped mounting frame 210 is installed on the side of the plugging gas-assisted injection mold body 10, so that the pressure relief needle 220 can be located inside the gas discharge reserved hole. The pressure relief needle 220 is located outside the plugging gas-assisted injection mold body 10. A gas flow control valve 230 and a one-way solenoid valve 240 are installed. Specifically, a limit plate is also fixedly connected to the pressure relief needle 220, which can limit the maximum distance of the pressure relief needle 220 inside the mold to prevent damage to the one-way solenoid valve 240. A length scale can also be set on the pressure relief needle 220 to understand the length of the pressure relief needle 220 inside the mold. Among them, the pressure relief needle 220 is inserted into the gas exhaust reserved hole, and then the U-shaped mounting frame 210 is installed on the side of the plug gas-assisted injection mold body 10, and then the gas flow control valve 230 and the one-way solenoid valve 240 on the pressure relief needle 220 are opened, and the gas can be discharged through the pressure relief needle 220. Through the setting of the one-way solenoid valve 240, it is possible to prevent the external gas from entering the mold through the pressure relief needle 220 when the gas is discharged, and prevent the appearance and quality of the automobile plug from being affected during exhaust. Through the setting of the gas flow control valve 230, the speed of gas discharge can be controlled, the effect of gas discharge is improved, and the aesthetics of the automobile plug is guaranteed.

[0027] A movable member 260 is screwed on the U-shaped mounting frame 210, and the movable member 260 is connected to the pressure relief needle 220. The movable member 260 includes a knob 261 and an adjusting screw 262, the adjusting screw 262 is fixedly connected to the knob 261, and the other end of the adjusting screw 262 is screwed through the U-shaped mounting frame 210 and is rotatably connected to the pressure relief needle 220. A connecting member 250 is provided on the pressure relief needle 220, and the adjusting screw 262 is rotatably connected to the connecting member 250. The connecting member 250 includes a fixed sleeve 251, which is fixedly provided at the end of the pressure relief needle 220, and a connecting rod 252 is provided in a ring array on the fixed sleeve 251, and a connecting plate 253 is fixedly connected to the other opposite bank of the connecting rod 252, and the adjusting screw 262 is rotatably connected to the connecting plate 253. When it is necessary to adjust the position of the pressure relief needle 220 inside the mold, the knob 261 is turned to rotate the adjusting screw 262, thereby displacing the pressure relief needle 220, thereby changing the position of the pressure relief needle 220 inside the mold to prevent damage to the product.

[0028] The top and bottom of the connecting plate 253 are both provided with guide members 270, and the two guide members 270 are respectively slidably connected to the opposite surfaces of the inner wall of the U-shaped mounting frame 210. The two guide members 270 each include a guide rod 271 and a slider 272. The two guide rods 271 are respectively fixedly connected to the top and bottom of the connecting plate 253, the slider 272 is connected to the other end of the guide rod 271, and the two sliders 272 are respectively slidably connected to the opposite surfaces of the inner wall of the U-shaped mounting frame 210. The opposite surfaces of the inner wall of the U-shaped mounting frame 210 are both provided with a slide groove 211 that matches the slider 272. When the connecting plate 253 moves, the slider 272 also moves inside the slide groove 211, so that the pressure relief needle 220 has better stability when moving.

[0029] When using this application:

[0030] Insert the pressure relief needle 220 into the gas exhaust reserved hole, then install the U-shaped mounting frame 210 on the side of the plugging gas-assisted injection mold body 10, and then open the gas flow control valve 230 and the one-way solenoid valve 240 on the pressure relief needle 220 to discharge the gas through the pressure relief needle 220. The one-way solenoid valve 240 can prevent the external gas from entering the mold through the pressure relief needle 220 when the gas is discharged, thereby preventing the appearance and quality of the automobile plug from being affected during exhaust. The gas flow control valve 230 can be set to control the speed of gas discharge, improve the effect of gas discharge, and thus ensure the aesthetics of the automobile plug.

[0031] In summary, the present application can prevent external gas from entering the mold through the pressure relief needle 220 when exhausting gas through the one-way solenoid valve 240, thereby preventing the appearance and quality of the automobile plug from being affected during exhaust. The setting of the gas flow control valve 230 makes it possible to control the speed of gas exhaust, improve the effect of gas exhaust, and thus ensure the aesthetics of the automobile plug.

[0032] It should be noted that the specific model specifications of the gas flow control valve 230 and the one-way solenoid valve 240 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be described in detail.

[0033] The power supply and principle of the gas flow control valve 230 and the one-way solenoid valve 240 are clear to those skilled in the art and will not be described in detail herein.

[0034] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A gas-assisted injection mold for automobile plugging production, characterized in that: include A plugging gas-assisted injection mold body (10), wherein a gas discharge reserved hole is arranged inside the plugging gas-assisted injection mold body (10); The air relief component (20) comprises a U-shaped mounting frame (210), to which a pressure relief needle (220) is connected. The U-shaped mounting frame (210) is mounted on the side of the plugging gas-assisted injection mold body (10), so that the pressure relief needle (220) can be located inside the gas exhaust reserved hole. The pressure relief needle (220) is located outside the plugging gas-assisted injection mold body (10), and a gas flow control valve (230) and a one-way solenoid valve (240) are installed.

2. The gas-assisted injection mold for automobile plugging production according to claim 1, characterized in that: A moving part (260) is threadedly provided on the U-shaped mounting frame (210), and the moving part (260) is connected to the pressure relief needle (220).

3. The gas-assisted injection mold for automobile plugging parts production according to claim 2, characterized in that: The moving member (260) comprises a knob (261) and an adjusting screw (262), wherein the adjusting screw (262) is fixedly connected to the knob (261), and the other end of the adjusting screw (262) is threadedly connected to penetrate the U-shaped mounting frame (210) and is rotatably connected to the pressure relief needle (220).

4. The gas-assisted injection mold for automobile plugging production according to claim 3, characterized in that: The pressure relief needle (220) is provided with a connecting piece (250), and the adjusting screw (262) is rotatably connected to the connecting piece (250).

5. The gas-assisted injection mold for automobile plugging production according to claim 4, characterized in that: The connecting member (250) comprises a fixing sleeve (251), wherein the fixing sleeve (251) is fixedly arranged at the end of the pressure relief needle (220), and connecting rods (252) are arranged in a ring array on the fixing sleeve (251), and a connecting plate (253) is fixedly connected to the other opposite side of the connecting rod (252), and the adjusting screw (262) is rotatably connected to the connecting plate (253).

6. The gas-assisted injection mold for automobile plugging production according to claim 5, characterized in that: The top and bottom of the connecting plate (253) are both provided with guide members (270), and the two guide members (270) are respectively slidably connected to the opposite surfaces of the inner wall of the U-shaped mounting frame (210).

7. The gas-assisted injection mold for automobile plugging production according to claim 6, characterized in that: The two guide members (270) each comprise a guide rod (271) and a slider (272); the two guide rods (271) are respectively fixedly connected to the top and bottom of the connecting plate (253); the slider (272) is connected to the other end of the guide rod (271); and the two sliders (272) are respectively slidably connected to the opposite surface of the inner wall of the U-shaped mounting frame (210).

8. The gas-assisted injection mold for automobile plugging production according to claim 7, characterized in that: The opposite surfaces of the inner wall of the U-shaped mounting frame (210) are provided with sliding grooves (211) matching with the sliding block (272).

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