Sprue structure of car lamp injection mold

Abstract

The utility model discloses a car lamp injection mold sprue structure, and relates to the technical field of injection molding processing, the car lamp injection mold sprue structure comprises a bushing assembly, one end of the bushing assembly is fixedly connected with a connecting mechanism, one side of the connecting mechanism is in threaded connection with a communicating assembly, the bushing assembly comprises a bushing main body, and a No.1 runner is arranged at the central position of the bushing main body. According to the sprue bushing, the connecting pipe is in threaded connection with the fixing sleeve, the communicating assembly and the bushing assembly are installed and connected, the bushing assembly does not need to be integrally replaced when different molds are subjected to injection molding, the injection molding cost is reduced, meanwhile, when the sprue bushing of an injection molding machine is used for injection molding, the same bushing assembly is used, and the injection molding efficiency is improved. The situation that a new lining assembly and the sprue are insufficient in adaptation degree, and consequently materials leak in the injection molding process can be avoided, and the stability in the injection molding process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to a gate structure of an injection mold for a vehicle lamp. Background Art

[0002] The gate is the channel for the molten plastic to enter the mold cavity, which determines the speed, direction and filling of the plastic flow. In the design of the headlight injection mold, the gate structure is a very critical part, which directly affects the product quality and production efficiency.

[0003] However, in the prior art, different injection molds are required to be used for production of different headlight injection molded parts. Different molds require different gate structures. The bushing in the gate structure is a structure that directly interfaces with the nozzle of the injection molded part. Due to its high manufacturing precision requirements, the production cost of the gate structure is relatively high. When completely different gate structures are used for different headlight injection molded parts, the manufacturing cost will increase, resulting in the lack of price advantage of the products produced in the market. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that different molds need different gate structures in the prior art, and the bushing in the gate structure is a structure that is directly connected to the nozzle of the injection molded part. Due to its high manufacturing precision requirements, the production cost of the gate structure is relatively high. When completely different gate structures are used for different car light injection molds, the manufacturing cost will increase. A gate structure for a car light injection mold is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a gate structure of a car lamp injection mold, comprising a bushing assembly, one end of the bushing assembly is fixedly connected with a connecting mechanism, one side of the connecting mechanism is threadedly connected with a connecting assembly, the bushing assembly comprises a bushing body, a No. 1 flow channel is arranged at the center of the bushing body, the connecting mechanism comprises a fixed sleeve and a sealing ring, the fixed sleeve is fixedly connected with one end of the bushing body, and the sealing ring is located inside the fixed sleeve and fixedly connected with the bushing body;

[0006] The connecting component includes a connecting pipe, which is threadedly connected to a fixed sleeve, and a discharge head is fixedly connected to one side of the connecting pipe. A second flow channel is arranged at the center of the connecting pipe, and a third flow channel is arranged at the center of the discharge head.

[0007] Preferably, an alumina ceramic layer is fixedly connected inside the bushing body, and a limiting block is fixedly connected to the upper part of the bushing body.

[0008] Preferably, a sealing gasket is sleeved on the surface of the sealing ring, and the sealing gasket is respectively fitted with the surface of the bushing body and the fixed sleeve.

[0009] Preferably, the sealing gasket is made of perfluoroether rubber gasket.

[0010] Preferably, the No. 1 flow channel, the No. 2 flow channel and the No. 3 flow channel are all trumpet-shaped, the large end diameter of the No. 1 flow channel is the same as the small end diameter of the No. 2 flow channel, and the large end diameter of the No. 2 flow channel is the same as the small end diameter of the No. 3 flow channel.

[0011] Preferably, a raised circular ring is provided at one end of the second flow channel, the raised circular ring is located between the fixed sleeve and the sealing ring, and one end of the raised circular ring is tightly fitted with the surface of the sealing gasket.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the connecting assembly and the bushing assembly are installed and connected by threaded connection between the connecting pipe and the fixed sleeve. When injection molding is performed on different molds, the bushing assembly does not need to be replaced as a whole, thereby reducing the cost of injection molding. At the same time, when the nozzle of the injection molding machine is used for injection molding, the same bushing assembly is used, which can avoid the lack of adaptability between the new bushing assembly and the nozzle, causing material leakage during injection molding, thereby improving the stability of the injection molding process.

[0014] 2. In the utility model, a sealing gasket is used to seal the connection between the No. 1 flow channel and the fixed sleeve to prevent material leakage from the connection. A limit block is used to limit the position between the mold and the bushing body to reduce the impact force on the mold when the nozzle and the bushing body are plugged in, thereby maintaining the overall stability of the mold. The alumina ceramic layer is used to improve the strength and wear resistance of the contact surface between the bushing body and the nozzle, thereby improving the service life of the bushing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a first three-dimensional structural schematic diagram of a gate structure of a vehicle lamp injection mold;

[0016] Figure 2 A second three-dimensional structural schematic diagram of a gate structure of a vehicle lamp injection mold is provided for the utility model;

[0017] Figure 3 The utility model provides a side view structural schematic diagram of a gate structure of a headlight injection mold;

[0018] Figure 4 The utility model provides a cross-sectional structural schematic diagram of a gate structure of an injection mold for a vehicle lamp.

[0019] Legend: 1. Bushing assembly; 11. Bushing body; 12. Alumina ceramic layer; 13. Flow channel No. 1; 14. Limit block; 2. Connecting mechanism; 21. Fixed sleeve; 22. Sealing ring; 23. Sealing gasket; 3. Connecting assembly; 31. Connecting pipe; 32. Discharge head; 33. Flow channel No. 2; 34. Flow channel No. 3. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0022] Embodiment 1

[0023] like Figure 1-4 As shown, the utility model provides a gate structure of a headlight injection mold, including a bushing component 1, one end of the bushing component 1 is fixedly connected with a connecting mechanism 2, one side of the connecting mechanism 2 is threadedly connected with a connecting component 3, the bushing component 1 includes a bushing body 11, a first flow channel 13 is arranged at the center of the bushing body 11, the connecting mechanism 2 includes a fixed sleeve 21 and a sealing ring 22, the fixed sleeve 21 is fixedly connected to one end of the bushing body 11, the sealing ring 22 is located inside the fixed sleeve 21 and fixedly connected to the bushing body 11, the connecting component 3 includes a connecting pipe 31, the connecting pipe 31 is threadedly connected to the fixed sleeve 21, and one side of the connecting pipe 31 is fixedly connected with a discharge head 32, a second flow channel 33 is arranged at the center of the connecting pipe 31, and a third flow channel 34 is arranged at the center of the discharge head 32.

[0024] The specific settings and functions of this embodiment are described in detail below. A connecting component 3 suitable for the injection mold is selected, and the connecting component 3 is threadedly connected to the fixed sleeve 21 through the connecting pipe 31. The connecting component 3 is installed and connected to the bushing component 1. When injection molding different molds, the bushing component 1 does not need to be replaced as a whole, thereby reducing the cost of injection molding. At the same time, when using the nozzle of the injection molding machine for injection molding, the same bushing component 1 is used to avoid insufficient compatibility between the new bushing component 1 and the nozzle, causing material leakage during injection molding, thereby improving the stability of the injection molding process.

[0025] Embodiment 2

[0026] like Figure 1-4As shown, an alumina ceramic layer 12 is fixedly connected to the inside of the bushing body 11, a limiting block 14 is fixedly connected to the upper part of the bushing body 11, a sealing gasket 23 is sleeved on the surface of the sealing ring 22, and the sealing gasket 23 is respectively fitted with the surface of the bushing body 11 and the fixed sleeve 21, and the sealing gasket 23 is made of perfluoroether rubber gasket, and the No. 1 flow channel 13, the No. 2 flow channel 33 and the No. 3 flow channel 34 are all trumpet-shaped, the big head diameter of the No. 1 flow channel 13 is the same as the small head diameter of the No. 2 flow channel 33, and the big head diameter of the No. 2 flow channel 33 is the same as the small head diameter of the No. 3 flow channel 34, and a raised ring is arranged at one end of the No. 2 flow channel 33, and the raised ring is located between the fixed sleeve 21 and the sealing ring 22, and one end of the raised ring is tightly fitted with the surface of the sealing gasket 23.

[0027] The effect achieved by the entire embodiment is that the connection between the No. 1 flow channel 13 and the fixed sleeve 21 is sealed by the sealing gasket 23 to prevent material leakage from the connection, the mold and the bushing body 11 are limited by the limit block 14, the impact force on the mold when the nozzle and the bushing body 11 are plugged in, and the overall stability of the mold is maintained, the strength and wear resistance of the contact surface between the bushing body 11 and the nozzle are improved by the alumina ceramic layer 12, and the service life of the bushing body 11 is improved, the No. 1 flow channel 13, the No. 2 flow channel 33 and the No. 3 flow channel 34 are designed to be trumpet-mouthed, and the design that the big head diameter of the No. 1 flow channel 13 is the same as the small head diameter of the No. 2 flow channel 33, and the big head diameter of the No. 2 flow channel 33 is the same as the small head diameter of the No. 3 flow channel 34, allows the material to flow into the mold more smoothly.

[0028] The use method and working principle of the device: When the utility model is used, a connecting component 3 suitable for the injection mold is selected, and the connecting component 3 is threadedly connected with the fixed sleeve 21 through the connecting pipe 31, and the connecting component 3 is installed and connected with the bushing component 1. When different molds are injected, the bushing component 1 does not need to be replaced as a whole. At the same time, when the nozzle of the injection molding machine is used for injection molding, the same bushing component 1 is used to avoid the lack of adaptability between the new bushing component 1 and the nozzle, which causes material leakage during injection molding;

[0029] The connection between the No. 1 flow channel 13 and the fixed sleeve 21 is sealed by the sealing gasket 23 to prevent material leakage from the connection. The limit block 14 is used to limit the position between the mold and the bushing body 11 to reduce the impact force on the mold when the nozzle and the bushing body 11 are plugged in. The alumina ceramic layer 12 is used to improve the strength and wear resistance of the contact surface between the bushing body 11 and the nozzle.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A gate structure of a car lamp injection mold, characterized in that: The invention comprises a bushing assembly (1), one end of which is fixedly connected to a connection mechanism (2), one side of which is threadedly connected to a connecting assembly (3), the bushing assembly (1) comprises a bushing body (11), a first flow channel (13) is arranged at the center of the bushing body (11), the connection mechanism (2) comprises a fixed sleeve (21) and a sealing ring (22), the fixed sleeve (21) is fixedly connected to one end of the bushing body (11), and the sealing ring (22) is located inside the fixed sleeve (21) and fixedly connected to the bushing body (11); The connecting component (3) comprises a connecting pipe (31), the connecting pipe (31) is threadedly connected to the fixed sleeve (21), and a discharge head (32) is fixedly connected to one side of the connecting pipe (31), a second flow channel (33) is arranged at the center of the connecting pipe (31), and a third flow channel (34) is arranged at the center of the discharge head (32).

2. The gate structure of the car lamp injection mold according to claim 1, characterized in that: An alumina ceramic layer (12) is fixedly connected inside the bushing body (11), and a limiting block (14) is fixedly connected to the upper part of the bushing body (11).

3. The gate structure of the car lamp injection mold according to claim 1, characterized in that: A sealing gasket (23) is sleeved on the surface of the sealing ring (22), and the sealing gasket (23) is respectively fitted with the surfaces of the bushing body (11) and the fixed sleeve (21).

4. The gate structure of the car lamp injection mold according to claim 3, characterized in that: The sealing gasket (23) is made of perfluoroether rubber.

5. The gate structure of the car lamp injection mold according to claim 1, characterized in that: The first flow channel (13), the second flow channel (33) and the third flow channel (34) are all in a bell-mouth shape; the large end diameter of the first flow channel (13) is the same as the small end diameter of the second flow channel (33); and the large end diameter of the second flow channel (33) is the same as the small end diameter of the third flow channel (34).

6. The gate structure of the vehicle lamp injection mold according to claim 1, characterized in that: A raised circular ring is provided at one end of the second flow channel (33), the raised circular ring is located between the fixed sleeve (21) and the sealing ring (22), and one end of the raised circular ring is tightly fitted to the surface of the sealing gasket (23).

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