A gate structure of a vehicle lamp injection mold

By designing the gate structure of the automotive headlight injection mold and utilizing a rotating screw system to adapt to gates of different diameters, the high cost problem caused by mold replacement was solved, thereby improving production efficiency and product price competitiveness.

CN224527889UActive Publication Date: 2026-07-21JIANGSU NINGTAI MOLD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU NINGTAI MOLD CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing technology, the gate structure of automotive lamp injection molds needs to be changed according to the injection gate diameter of different automotive lamp injection parts, resulting in high production costs and affecting the market price advantage of the products.

Method used

Design a gate structure for automotive headlight injection molds, including a gate sleeve, a gating channel, and a rotating screw system. The rotating screw is driven by a motor to achieve locking adaptation for different gate diameters. The integrated gate head and flared design ensure smooth injection of the molding solution.

Benefits of technology

This achieves universality of the gate structure for different automotive lamp injection molded parts, reduces production costs, and enhances the market competitiveness of the products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to car lamp injection mold gate technical field, especially for a kind of car lamp injection mold gate structure, including pouring mouth cover, the rear side of pouring mouth cover is connected with pouring outer sleeve tube, the inside of pouring mouth cover and located at intermediate position are connected with pouring runner through, the one end of pouring runner extending out pouring outer sleeve tube is connected with gate head in communication, in the utility model, by setting a kind of car lamp injection mold gate structure, when the production pouring of different car lamp injection parts is carried out, whether the caliber of pouring mouth is same or not can use this pouring mouth connecting device, solve the existing technology in the production of different car lamp injection parts, the caliber of its injection port is not same, need to use different injection gate mold and carry out injection molding, lead to the production cost of gate structure to be higher, can lead to manufacturing cost to increase, make the product of production lack the problem of price advantage in market.
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Description

Technical Field

[0001] This utility model relates to the field of gate technology for automotive lamp injection molds, specifically a gate structure for automotive lamp injection molds. Background Technology

[0002] The gate is the channel through which molten plastic enters the mold cavity, determining the speed, direction, and filling of the plastic flow. In the design of automotive headlight injection molds, the gate structure is a crucial part, directly affecting product quality and production efficiency.

[0003] However, in the existing technology, the diameter of the injection gate is not the same when producing different automotive light injection molded parts. Different injection gate molds are required for injection molding, which leads to higher production costs for the gate structure, resulting in increased manufacturing costs and making the products lack price competitiveness in the market.

[0004] Therefore, it is particularly important to design a gate structure for automotive headlight injection molds to overcome the aforementioned technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of this utility model is to provide a gate structure for automotive headlight injection molds to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A gate structure for an automotive headlight injection mold includes a gate sleeve, a gate sleeve tube connected to the rear side of the gate sleeve, a pouring channel penetrating through the middle of the gate sleeve, a gate nozzle extending from one end of the pouring channel through the gate sleeve tube, a connecting sleeve fixedly fitted to the outer side of the gate sleeve tube at its rear end, symmetrically fixed vertically to the outer side of the connecting sleeve tube near its rear end, a fixing rod sleeve installed at the end of the folding bracket away from the connecting sleeve, a forward and reverse motor provided at one end of the fixing rod sleeve, the output end of the forward and reverse motor penetrating through the interior of the fixing rod sleeve and connected to a rotating screw, a screw sleeve threaded onto the outer side of the rotating screw, a guide rod fixed to the outer side of the screw sleeve, and a locking bend connected to the end of the guide rod away from the screw sleeve.

[0008] As a preferred embodiment of this utility model, the pouring port outer sleeve is designed with a flared structure that opens forward, and the front end of the pouring channel extends out of the pouring port outer sleeve.

[0009] The above technical solution enables the injection molding solution to be successfully injected through the casting channel.

[0010] As a preferred embodiment of this utility model, the pouring channel and the pouring nozzle are designed as an integrated structure, and the pouring nozzle is a conical structure with the tip pointing backward.

[0011] The above technical solution ensures that the pouring channel is inserted into the interior of the inlet.

[0012] As a preferred embodiment of this utility model, a controller is provided on the outside of the connecting sleeve, wherein the controller is connected to the forward and reverse motors by wires, and the connection is an electrical connection.

[0013] As a preferred embodiment of this utility model, both ends of the rotating screw are rotatably connected to the inside of the fixed sleeve through bearing seats, and the inside of the fixed sleeve is provided with a rectangular groove that extends along the height direction and allows the screw sleeve to move.

[0014] As a preferred embodiment of this utility model, anti-slip rubber pads are attached to the opposite sides of both sets of locking plates.

[0015] The above technical solutions increase the firmness and stability after locking.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, a gate structure for a car light injection mold is provided. When producing different car light injection molded parts, regardless of the diameter of the gate, this gate connection device can be used. The connecting sleeve is fitted onto the outside of the gate of the car light injection mold, ensuring that the pouring channel is inserted into the interior of the gate. This guarantees that the injection solution can smoothly flow through the pouring channel. Then, the controller is activated, causing the forward and reverse motors to drive the rotating screw. Under the thread drive, the screw sleeve moves, ultimately bringing the two sets of locking plates closer together and locking the gates of different diameters. This adapts to different gates, solving the problem in the prior art where, when producing different car light injection molded parts, the diameter of the injection gates varies, requiring different injection molds for injection molding. This results in higher production costs for the gate structure, leading to increased manufacturing costs and a lack of price competitiveness in the market. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the connecting sleeve in the separated state of this utility model;

[0021] Figure 4 This is a partial structural diagram of the present utility model.

[0022] In the diagram: 1. Pouring spout outer sleeve; 2. Pouring outer sleeve pipe; 3. Pouring flow channel; 4. Pouring spout; 5. Connecting pipe sleeve; 501. Folding support; 502. Fixing rod sleeve; 503. Forward and reverse motor; 504. Rotating screw; 505. Screw sleeve; 506. Guide support rod; 507. Locking bend plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0025] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0026] A gate structure for an injection mold for automotive lights includes a gate sleeve 1, a gate sleeve tube 2 connected to the rear side of the gate sleeve 1, a pouring channel 3 penetrating through the middle of the gate sleeve 1, a gate nozzle 4 extending from one end of the pouring channel 3 out of the pouring sleeve tube 2, and a connecting sleeve 5 fixedly sleeved on the outer side of the pouring sleeve tube 2 at the rear end.

[0027] The pouring nozzle sleeve 1 has a flared structure with the opening facing forward, and the front end of the pouring channel 3 extends out of the pouring nozzle sleeve 1, so that the injection solution can be smoothly injected through the pouring channel.

[0028] The pouring channel 3 and the pouring nozzle 4 are designed as an integrated structure. The pouring nozzle 4 is a conical structure with the tip pointing backward, which ensures that the pouring channel is inserted into the interior of the pouring nozzle.

[0029] In this embodiment, a folding bracket 501 is symmetrically fixed at the outer side of the connecting sleeve 5 and near the rear end. A fixing rod sleeve 502 is installed at the end of the folding bracket 501 away from the connecting sleeve 5. A forward and reverse motor 503 is provided at one end of the fixing rod sleeve 502. The output end of the forward and reverse motor 503 passes through the interior of the fixing rod sleeve 502 and is connected to a rotating screw 504. A screw slide sleeve 505 is threaded onto the outer side of the rotating screw 504. A guide support rod 506 is fixed on the outer side of the screw slide sleeve 505. A locking bend plate 507 is connected to the end of the guide support rod 506 away from the screw slide sleeve 505.

[0030] A controller is provided on the outside of the connecting sleeve 5. The controller is connected to the forward and reverse motor 503 by a wire and the connection is electrical. Both ends of the rotating screw 504 are rotatably connected to the inside of the fixed sleeve 502 through bearing seats. The inside of the fixed sleeve 502 is provided with a rectangular groove that extends along the height direction and allows the screw sleeve 505 to move.

[0031] Both sets of locking bends 507 have anti-slip pads attached to the opposite side to increase the firmness and stability after locking.

[0032] The workflow of this utility model is as follows: Using the injection mold gate structure for automotive lights designed in this solution, during operation, when producing different automotive light injection molded parts, regardless of the diameter of the injection port, this injection port connection device can be used. The connecting sleeve 5 is fitted onto the outside of the injection mold gate, ensuring that the injection channel 3 is inserted into the interior of the gate, guaranteeing that the injection solution can smoothly pass through the injection channel 3. Then, the controller is activated, causing the forward and reverse motors 503 to drive the rotating screw 504 to rotate, thereby driving the screw sleeve 505 to move under the thread drive. Finally, the two sets of locking plates 507 approach and lock the injection ports of different diameters, thus adapting to different injection ports. This solves the problem in the prior art where, when producing different automotive light injection molded parts, the diameter of the injection port is not the same, requiring the use of different injection molds for injection processing, resulting in high production costs for the injection gate structure, leading to increased manufacturing costs and a lack of price competitiveness in the market.

[0033] The controller and the forward and reverse motor used in this utility model are both existing known electrical devices, and both can be purchased and used directly on the market. Their structure, circuit and control principle are all existing known technologies. Therefore, the structure, circuit and control principle of the controller and the forward and reverse motor will not be described in detail here.

[0034] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gate structure for an injection mold for automotive lights, comprising a gate sleeve (1), characterized in that: The back of the pouring port sleeve (1) is connected to a pouring outer sleeve pipe (2). A pouring flow channel (3) is connected through the inside of the pouring port sleeve (1) at the middle position. One end of the pouring flow channel (3) extending out of the pouring outer sleeve pipe (2) is connected to a pouring nozzle (4). A connecting sleeve (5) is fixedly sleeved on the outside of the pouring outer sleeve pipe (2) at the rear end position. A folding bracket (501) is symmetrically fixed on the outside of the connecting sleeve (5) near the rear end position. The folding bracket (501) is away from the connecting pipe. A fixing rod sleeve (502) is installed at one end of the sleeve (5). A forward and reverse motor (503) is provided at one end of the fixing rod sleeve (502). The output end of the forward and reverse motor (503) passes through the interior of the fixing rod sleeve (502) and is connected to a rotating screw (504). A screw sleeve (505) is threaded onto the outer side of the rotating screw (504). A guide rod (506) is fixed on the outer side of the screw sleeve (505). A locking plate (507) is connected to the end of the guide rod (506) away from the screw sleeve (505).

2. The gate structure of a vehicle headlight injection mold according to claim 1, characterized in that: The pouring port sleeve (1) is designed with a flared structure that opens forward, and the front end of the pouring channel (3) extends out of the pouring port sleeve (1).

3. The gate structure of a vehicle headlight injection mold according to claim 2, characterized in that: The pouring channel (3) and the pouring nozzle (4) are designed as an integrated structure, and the pouring nozzle (4) is a cone-shaped structure with the tip pointing backward.

4. The gate structure of a vehicle headlight injection mold according to claim 2, characterized in that: A controller is provided on the outside of the connecting sleeve (5), wherein the controller is connected to the forward and reverse motor (503) by a wire and the connection is an electrical connection.

5. The gate structure of a vehicle headlight injection mold according to claim 2, characterized in that: Both ends of the rotating screw (504) are rotatably connected to the inside of the fixed sleeve (502) through bearing seats. The inside of the fixed sleeve (502) is provided with a rectangular groove that extends along the height direction and allows the screw sleeve (505) to move.

6. The gate structure of a vehicle headlight injection mold according to claim 2, characterized in that: Both sets of locking bends (507) have anti-slip pads attached to the opposite side.