Injection mold for producing automobile driving lamp

Abstract

The utility model relates to the technical field of automobile production molds, in particular to an injection mold for automobile driving lamp production, which comprises an injection molding machine, an injection molding pressing mold assembly and a demolding assembly for preventing mold sticking are arranged in the injection molding machine, the injection molding pressing mold assembly comprises a fixed mold plate and a movable mold plate, and the demolding assembly is positioned in a movable mold plate forming rod. The demolding assembly comprises an exhaust assembly, an ejection assembly and a gas ejection assembly. The exhaust assembly comprises a ventilation ejector rod, a spring and a sliding block. The exhaust assembly, the ejection assembly and the gas ejection assembly are integrally arranged on the side of the movable mold plate, the demolding efficiency is improved, the vacuum influence is eliminated through the exhaust assembly, and a product is easily separated from the mold plate; the ejection assembly provides an auxiliary demolding function; the air ejection assembly is in an ejection mode by introducing cold air, so that the mold sticking problem is avoided, the stability of the product is ensured, good expandability is achieved, different assemblies can be flexibly configured according to different product design and process requirements, and the production requirements of different products are met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production molds, in particular to an injection mold for producing automobile driving lights. Background Art

[0002] Car running lights are lighting devices installed on cars. Their main function is to provide drivers with better visibility at night or in bad weather conditions to ensure driving safety. In addition to providing drivers with a clear view, car running lights can also alert other road users to the presence of the vehicle, thereby avoiding potential dangers. Modern cars are usually equipped with multiple sets of lighting devices, including high beams, low beams, daytime running lights, and turn signals.

[0003] Existing molds for producing automotive lamps are prone to sticking during the demolding process. The existing demolding solutions are to strengthen the demolding springs, polish and spray the demolding agent, extend the cooling time and add demolding ejectors. However, strengthening the demolding springs makes a lot of noise, spraying the demolding agent is cumbersome and increases production costs, extending the cooling time leads to low production efficiency, and the ejectors are prone to leave marks on the lamp cover after molding, which can easily cause product defects. Utility Model Content

[0004] The purpose of the utility model is to provide an injection mold for producing automobile driving lights to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An injection mold for producing automobile driving lights, comprising an injection molding machine, wherein an injection molding die assembly and a demolding assembly for preventing mold sticking are arranged inside the injection molding machine, the injection molding die assembly comprises a fixed mold plate and a movable mold plate, the demolding assembly is located inside the movable mold plate molding rod, the demolding assembly comprises an exhaust assembly, an ejection assembly and an air ejector assembly, the exhaust assembly comprises a vent ejector rod, a spring and a sliding block, a through groove is opened inside the movable mold plate molding rod, the through groove is arranged in an I-shaped structure, the through groove is connected with a sealing groove near the outside, the sealing groove is arranged in a T-shaped structure, the vent ejector rod passes through the sealing groove and extends into the through groove, the spring is sleeved on the outer circumferential wall of the vent ejector rod inside the through groove, the sliding block is sleeved on the outer wall of the vent ejector rod at the bottom of the spring, one end of the spring is fixed to the inner wall of the through groove near one end of the sealing groove, and the other end of the spring is fixed to the sliding block.

[0007] As a preferred solution of the utility model, the ventilation push rod located inside the sealing groove matches the sealing groove structure and the outer wall abuts against the inner wall of the sealing groove.

[0008] As a preferred solution of the utility model, the ejection assembly includes push rods that are located on both sides of the movable template forming rod in a supporting structure, and a slide structure matching the outer walls on both sides of the movable template forming rod is provided at the bottom of each push rod, and the push rods are connected to an external driving device.

[0009] As a preferred solution of the utility model, the gas cap assembly includes a high-pressure air pipe, the high-pressure air pipe is located inside the through groove of the dynamic template, and the high-pressure air pipe is connected to an external high-pressure cold air pump.

[0010] As a preferred solution of the utility model, the outer wall below the ventilation push rod does not abut against the inner wall of the sealing groove, and a ventilation channel is formed.

[0011] As a preferred solution of the utility model, a controller is embedded on the external housing of the injection molding machine, and the controller is connected to an alarm light via a wire, and the alarm light is located at a top corner of one end of the top of the injection molding machine.

[0012] As a preferred solution of the utility model, a protective transparent observation door is provided on the injection molding machine.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In view of the problems raised in the background technology, the present application integrates an exhaust component, an ejection component and a gas cap component on the movable mold plate side to improve demoulding efficiency, eliminates the vacuum effect through the exhaust component to ensure that the molded product is easy to demould, and assists in demoulding by setting the ejection component. The gas cap component is set to eject the product by gas ventilation to prevent mold sticking, and the gas introduced is cold air, thereby improving demoulding efficiency and ensuring product stability;

[0015] The function of the exhaust component is to eliminate the influence of vacuum and make it easier for the product to detach from the template; the ejection component provides the function of auxiliary demoulding; and the air ejector component ejects by introducing cold air, which not only avoids the problem of sticking mold, but also ensures the stability of the product. It has good scalability and can flexibly configure different components according to different product designs and process requirements to meet the production needs of different products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the front view of the overall injection molding machine of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the integral fixed template and the movable template of the utility model;

[0018] Figure 3 This is a top view schematic diagram of the integral moving template of the utility model;

[0019] Figure 4This is a schematic diagram of the structure of the demoulding component of the utility model;

[0020] Figure 5 It is a schematic diagram of the demoulding displacement structure of the demoulding component of the utility model.

[0021] In the figure: 1. injection molding machine; 2. injection molding die assembly; 21. fixed platen; 22. movable platen; 3. demoulding assembly; 31. vent ejector pin; 32. spring; 33. sliding block; 331. through groove; 333. sealing groove; 34. push rod; 35. high-pressure air pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the embodiments of the present invention.

[0023] Example

[0024] See also Figure 1-5 The utility model provides a technical solution: an injection mold for producing automobile driving lights, including an injection molding machine 1, a controller is embedded on the outer shell of the injection molding machine 1, the controller is connected to an alarm light through a wire, and the alarm light is located at the top corner of one end of the top of the injection molding machine 1; a protective transparent observation door is provided on the injection molding machine 1; an injection molding die assembly 2 and a demolding assembly 3 for preventing mold sticking are arranged inside the injection molding machine 1, the injection molding die assembly 2 includes a fixed mold plate 21 and a movable mold plate 22, the demolding assembly 3 is located inside the molding rod of the movable mold plate 22, the demolding assembly 3 includes an exhaust assembly, an ejection assembly and an air ejector assembly, the exhaust assembly includes a vent ejector rod 31, a spring 32 and a sliding block 33, a through groove 331 is opened inside the molding rod of the movable mold plate 22, the through groove 331 is arranged in an I-shaped structure, and the through groove 331 is connected with a sealing groove near the outside 333, the sealing groove 333 is arranged in a T-shaped structure, the ventilation ejector rod 31 passes through the sealing groove 333 and extends into the through groove 331, the spring 32 is sleeved on the outer circumferential wall of the ventilation ejector rod 31 inside the through groove 331, the sliding block 33 is sleeved on the outer wall of the ventilation ejector rod 31 at the bottom of the spring 32, one end of the spring 32 is fixed to the inner wall of the through groove 331 close to one end of the sealing groove 333, and the other end of the spring 32 is fixed to the sliding block 33; the ventilation ejector rod 31 located in the sealing groove 333 matches the structure of the sealing groove 333 and the outer wall abuts against the inner wall of the sealing groove 333; the ejection assembly includes push rods 34 located on both sides of the forming rod of the moving template 22 in a supporting structure, and each push rod 34 is provided with a landslide structure matching the outer walls on both sides of the forming rod of the moving template 22 at the bottom, and the push rod 34 is connected to an external driving device.

[0025] It should be noted that the present application improves demoulding efficiency by integrating an exhaust assembly, an ejection assembly and a gas cap assembly on the side of the movable template 22, eliminates the vacuum effect by the exhaust assembly, ensures that the molded product is easy to demould, and assists in demoulding by setting an ejection assembly. The gas cap assembly is set to eject the product by gas ventilation to prevent mold sticking, and the gas introduced is cold air, thereby improving demoulding efficiency and ensuring product stability;

[0026] Furthermore, the exhaust component is used to eliminate the vacuum effect and make it easier for the product to be separated from the template; the ejection component provides the function of assisting demoulding; and the air ejection component ejects by introducing cold air, which not only avoids the problem of mold sticking, but also ensures the stability of the product. It has good scalability and can flexibly configure different components according to different product designs and process requirements to meet the production needs of different products.

[0027] Furthermore, when the fixed mold plate 21 and the movable mold plate 22 are injection molded, the vent pin 31 is located inside the sealing groove 333 due to the pressure of the spring 32, and the inner wall of the sealing groove 333 abuts against the outer wall of the vent pin 31 to prevent glue leakage during stamping. When the stamping is completed, when the movable mold plate 22 and the fixed mold plate 21 are displaced and opened, the push rod 34 pushes the molded product at the bottom of the molding rod to displace, and at the same time drives the vent pin 31 to move. When the vent pin 31 moves, gas enters the molded product through the gap formed by the displacement of both sides of the vent pin 31, eliminates the vacuum, and performs demolding.

[0028] See also Figure 4 and 5 The air top assembly includes a high-pressure air pipe 35, which is located inside the through groove 331 of the dynamic template 22, and is connected to an external high-pressure cold air pump; the outer wall below the ventilation top rod 31 does not abut against the inner wall of the sealing groove 333, and a ventilation channel is formed.

[0029] It should be noted that, in this embodiment, the air ejector assembly is ejected by passing cold air, which not only avoids the mold sticking problem, but also ensures the stability of the product, and has good scalability. Different components can be flexibly configured according to different product designs and process requirements to meet the production needs of different products.

[0030] When the vent pin 31 moves, gas enters the molded product through the gap formed by the displacement of both sides of the vent pin 31, eliminating the failure of vacuum demolding. The high-pressure air pipe 35 allows external high-pressure cold air to enter the molded product through the gap, and the cold air is used to demold the product. The air top component is ejected by the introduction of cold air, which not only avoids the problem of mold sticking, but also ensures the stability of the product.

[0031] The working process of the utility model is as follows: during use, when the fixed template 21 and the movable template 22 are injection molded, the vent ejector pin 31 is located inside the sealing groove 333 by the pressure of the spring 32, and the inner wall of the sealing groove 333 abuts against the outer wall of the vent ejector pin 31 to prevent glue leakage during stamping. When the stamping is completed, when the movable template 22 and the fixed template 21 are displaced and opened, the push rod 34 pushes the molded product at the bottom of the molding rod to displace, and at the same time drives the vent ejector pin 31 to move. When the vent ejector pin 31 moves, gas enters the molded product through the gap formed by the displacement of both sides of the vent ejector pin 31 to eliminate the vacuum. The high-pressure air pipe 35 allows external high-pressure cold air to enter the molded product through the gap and demold the product through the cold air. The air ejector assembly is ejected by the introduction of cold air, which not only avoids the problem of mold sticking, but also ensures the stability of the product. ; An exhaust component, an ejector component and an air-top component are integrated on the side of the movable template 22 to improve the demoulding efficiency. The exhaust component eliminates the vacuum effect to ensure that the molded product is easy to demould. The ejector component is provided to assist in demoulding. The air-top component is provided to eject the product through gas ventilation to prevent mold sticking, and the gas introduced is cold air, thereby improving the demoulding efficiency and ensuring the stability of the product. The exhaust component eliminates the vacuum effect and makes it easy for the product to separate from the template. The ejector component provides the function of assisting demoulding. The air-top component ejects by introducing cold air, which not only avoids the problem of mold sticking, but also ensures the stability of the product. It has good scalability and can flexibly configure different components according to different product designs and process requirements to meet the production needs of different products.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for producing automobile driving lights, comprising an injection molding machine (1), characterized in that: The injection molding machine (1) is provided with an injection mold assembly (2) and a mold release assembly (3) for preventing mold sticking. The injection mold assembly (2) includes a fixed mold plate (21) and a movable mold plate (22). The mold release assembly (3) is located inside a molding rod of the movable mold plate (22). The mold release assembly (3) includes an exhaust assembly, an ejection assembly and an air ejection assembly. The exhaust assembly includes a vent ejector rod (31), a spring (32) and a sliding block (33). A through groove (331) is provided inside the molding rod of the movable mold plate (22). The through groove (331) is arranged in an I-shaped structure. The through groove (331) is close to the outside. A sealing groove (333) is connected through the through groove (333), and the sealing groove (333) is arranged in a T-shaped structure. The ventilation rod (31) passes through the sealing groove (333) and extends into the interior of the through groove (331). The spring (32) is sleeved on the outer circumferential wall of the ventilation rod (31) inside the through groove (331). The sliding block (33) is sleeved on the outer wall of the ventilation rod (31) located at the bottom of the spring (32). One end of the spring (32) is fixed to the inner wall of the through groove (331) close to one end of the sealing groove (333), and the other end of the spring (32) is fixed to the sliding block (33).

2. The injection mold for producing automobile driving lights according to claim 1, characterized in that: The ventilation push rod (31) located inside the sealing groove (333) matches the structure of the sealing groove (333) and its outer wall abuts against the inner wall of the sealing groove (333).

3. The injection mold for producing automobile driving lights according to claim 1, characterized in that: The ejection assembly comprises push rods (34) which are located on both sides of the forming rod of the movable plate (22) in a supporting structure, and a sliding structure matching the outer walls on both sides of the forming rod of the movable plate (22) is arranged at the bottom of each push rod (34), and the push rods (34) are connected to an external driving device.

4. The injection mold for producing automobile driving lights according to claim 1, characterized in that: The gas cap assembly comprises a high-pressure gas pipe (35), the high-pressure gas pipe (35) is located inside the through groove (331) of the moving template (22), and the high-pressure gas pipe (35) is connected to an external high-pressure cold air pump.

5. The injection mold for producing automobile driving lights according to claim 2, characterized in that: The lower outer wall of the ventilation top rod (31) does not abut against the inner wall of the sealing groove (333), and a ventilation channel is formed.

6. The injection mold for producing automobile driving lights according to claim 1, characterized in that: A controller is embedded in the outer shell of the injection molding machine (1), and the controller is connected to an alarm light via a wire. The alarm light is located at a top corner of one end of the top of the injection molding machine (1).

7. The injection mold for producing automobile driving lights according to claim 1, characterized in that: The injection molding machine (1) is provided with a protective transparent observation door.

Images