Car lamp lens injection mold with quick mold changing function

Abstract

The utility model discloses a car lamp lens injection mould with a quick mould changing function, which comprises a mould base, a lower mould assembly and an upper mould assembly, a circular groove is arranged on the mould base, a sealing ring is arranged on the inner wall of the groove, a sucker is arranged at the bottom of the groove, a small hole for an air pipe to penetrate through is arranged at the bottom of the groove, and the upper mould assembly is arranged on the lower mould assembly. The top of the suction cup is clamped into the small hole and connected with an air pipe, the air pipe is connected with an air pump, the lower die assembly is connected with the die base, a plurality of circular clamping blocks matched with the grooves are arranged on the lower surface of the lower die assembly, the clamping blocks are inserted into the grooves and connected with the suction cup in an adsorption mode, and a positioning hole is formed in the upper surface of the lower die assembly. A positioning hole is formed in the lower die assembly, the hole bottom of the positioning hole is connected with the neodymium iron boron magnet, an upper die assembly is arranged above the lower die assembly, a positioning pin matched with the positioning hole is arranged on the lower surface of the upper die assembly, the positioning pin is made of magnetic metal, a hydraulic locking device is arranged above the upper die assembly and comprises a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the upper die assembly.

Description

Technical Field

[0001] This utility model relates to an injection mold for automotive headlight lenses with a quick mold change function. Background Technology

[0002] Automotive headlight lenses are a crucial component of automotive lighting systems. Their production involves frequent and highly precise mold changes. Traditional mold changeover processes for automotive headlight lenses have significant shortcomings. First, due to the large size and weight of the molds, conventional mold changes are not only time-consuming and labor-intensive but can also lead to improper operation and precision deviations, affecting product quality. Second, existing mold changeover devices generally rely on manual operation, failing to achieve rapid and accurate mold positioning and locking, further reducing production efficiency and increasing downtime.

[0003] In addition, traditional injection molding systems lack effective fast locking and fast disassembly mechanisms during the connection and disassembly of mold components, resulting in slow mold changeover speed. Especially in cases of frequent mold changes, the mold changeover process consumes a significant amount of production time, severely impacting the operational efficiency of the production line.

[0004] Therefore, how to achieve fast, accurate and stable mold changing for automotive headlight lens injection molds has become an urgent problem to be solved in the industry. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a car headlight lens injection mold with a quick mold change function.

[0006] A headlight lens injection mold with quick mold change function includes a mold base, a lower mold assembly, and an upper mold assembly. The mold base has several circular grooves, and the inner walls of the grooves have several sealing rings. The bottom of the grooves has a suction cup with an outer diameter equal to the inner diameter of the groove. The bottom of the groove has a small hole for an air pipe to pass through. The top of the suction cup is inserted into the small hole and connected to the air pipe, which is connected to an air pump. The lower mold assembly is connected to the mold base. The lower surface of the lower mold assembly has several circular locking blocks that match the grooves. The locking blocks are inserted into the grooves and connected to the suction cup by adsorption. The upper surface of the lower mold assembly has several positioning holes, and the bottom of the positioning holes is connected to a neodymium iron boron magnet. The upper mold assembly is located above the lower mold assembly. The lower surface of the upper mold assembly has several positioning pins that match the positioning holes. The positioning pins are made of magnetic metal. The upper mold assembly has a hydraulic locking device, which includes a hydraulic cylinder. The piston rod of the hydraulic cylinder is connected to the upper mold assembly.

[0007] As a further improvement, the upper mold assembly is connected to a heating device, which includes an electric heating tube and a heat-conducting base. The electric heating tube is welded to the heat-conducting base, and the heat-conducting base is connected to the upper mold assembly through a heat-conducting pad.

[0008] As a further improvement, the lower mold assembly is connected to a cooling device, which includes a cooling water channel located inside the lower mold assembly. The cooling water channel is connected to a water pump and a water storage tank via water pipes.

[0009] As a further improvement, a guiding device is provided between the upper mold assembly and the lower mold assembly. The guiding device includes a guide post on the lower mold assembly and a corresponding guide hole on the upper mold assembly.

[0010] As a further improvement, both the upper mold assembly and the lower mold assembly are made of aluminum.

[0011] As a further improvement, the suction cup is made of silicone rubber.

[0012] Beneficial effects:

[0013] Improved mold-changing efficiency: This invention utilizes multiple suction cups and locking blocks designed on the mold base. These suction cups are connected to air pipes, and combined with a hydraulic locking device, the mold can be automatically disassembled and installed in a shorter time. This significantly reduces mold-changing time, thereby improving production efficiency and minimizing downtime during production.

[0014] Precise alignment and positioning: The upper and lower mold components are connected by magnetic positioning pins and positioning holes. The strong magnetic force of neodymium iron boron magnets ensures that the molds can be precisely aligned during installation, avoiding the accuracy errors that may be caused by manual positioning and ensuring the injection molding quality of the headlight lens.

[0015] Improved mold stability: The hydraulic locking device in this invention can quickly and stably fix the mold to the base, avoiding injection molding quality problems caused by mold loosening. The hydraulic device, through precise adjustment of the locking force, can meet the requirements of different working environments, ensuring that the mold will not loosen or shift during operation.

[0016] Extending mold lifespan: By using aluminum as the main material for the mold base, upper mold assembly, and lower mold assembly, the mold is made lightweight, and the wear and tear caused by excessive weight during frequent mold changes is effectively reduced, thus extending the mold's lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an injection mold for automotive headlight lenses with a quick mold change function;

[0018] Figure 2This is a schematic diagram of the connection structure between the mold base and the lower mold assembly;

[0019] 1. Mold base 2. Lower mold assembly 3. Upper mold assembly 4. Guide pillar 5. Hydraulic locking device 6. Groove 7. Sealing ring 8. Suction cup 9. Air pipe 10. Clamping block. Detailed Implementation

[0020] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0021] like Figures 1-2 As shown, a car headlight lens injection mold with quick mold changing function includes a mold base 1, a lower mold assembly 2, an upper mold assembly 3, a guide post 4, a hydraulic locking device 5, a groove 6, a sealing ring 7, a suction cup 8, an air pipe 9, and a locking block 10.

[0022] A headlight lens injection mold with quick mold change function includes a mold base 1, a lower mold assembly 2, and an upper mold assembly 3. Both the upper mold assembly 3 and the lower mold assembly 2 are made of aluminum. The mold base 1 has several circular grooves 6, and several sealing rings 7 are provided on the inner wall of each groove 6. A suction cup 8, made of silicone rubber, is located at the bottom of each groove 6. The outer diameter of the suction cup 8 is equal to the inner diameter of the groove 6. A small hole for an air pipe 9 to pass through is provided at the bottom of each groove 6. The top of the suction cup 8 is inserted into the small hole and connected to the air pipe 9, which is connected to an air pump. The lower mold assembly 2 is connected to the mold base 1. Several circular locking blocks 10, matching the grooves 6, are provided on the lower surface of the lower mold assembly 2. The locking blocks 10 are inserted into the grooves 6 and connected to the suction cups 8 by adsorption. Several positioning holes are provided on the upper surface of the lower mold assembly 2, with the bottom of the positioning holes connected to neodymium iron boron magnets. The upper mold assembly 3 is connected to the lower mold assembly 2. The lower surface of the upper mold assembly 3 is provided with several positioning pins that match the positioning holes. The positioning pins are made of magnetic metal. The upper mold assembly 3 is provided with a hydraulic locking device 5, which includes a hydraulic cylinder. The piston rod of the hydraulic cylinder is connected to the upper mold assembly 3. The upper mold assembly 3 is connected to a heating device, which includes an electric heating tube and a heat-conducting base. The electric heating tube is welded to the heat-conducting base. The heat-conducting base is connected to the upper mold assembly 3 through a heat-conducting pad. The lower mold assembly 2 is connected to a cooling device, which includes a cooling water channel inside the lower mold assembly 2. The cooling water channel is connected to a water pump and a water storage tank through a water pipe. A guide device is provided between the upper mold assembly 3 and the lower mold assembly 2. The guide device includes a guide post 4 on the lower mold assembly 2 and a corresponding guide hole on the upper mold assembly 3.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A headlight lens injection mold with quick mold change function, characterized in that, The system includes a mold base, a lower mold assembly, and an upper mold assembly. The mold base has several circular grooves with several sealing rings on the inner walls of the grooves. A suction cup is located at the bottom of the groove, with the outer diameter of the suction cup equal to the inner diameter of the groove. A small hole for an air pipe to pass through is provided at the bottom of the groove. The top of the suction cup is inserted into the small hole and connected to the air pipe, which is connected to an air pump. The lower mold assembly is connected to the mold base. The lower surface of the lower mold assembly has several circular locking blocks that match the grooves. The locking blocks are inserted into the grooves and connected to the suction cups by adsorption. The upper surface of the lower mold assembly has several positioning holes, with the bottom of the positioning holes connected to neodymium iron boron magnets. The upper mold assembly is located above the lower mold assembly. The lower surface of the upper mold assembly has several positioning pins that match the positioning holes. The positioning pins are made of magnetic metal. A hydraulic locking device is located above the upper mold assembly. The hydraulic locking device includes a hydraulic cylinder, and the piston rod of the hydraulic cylinder is connected to the upper mold assembly.

2. The injection mold for a car headlight lens with quick mold change function according to claim 1, characterized in that, The upper mold assembly is connected to a heating device, which includes an electric heating tube and a heat-conducting base. The electric heating tube is welded to the heat-conducting base, and the heat-conducting base is connected to the upper mold assembly through a heat-conducting pad.

3. The injection mold for a car headlight lens with quick mold change function according to claim 1, characterized in that, The lower mold assembly is connected to a cooling device, which includes a cooling water channel located inside the lower mold assembly. The cooling water channel is connected to a water pump and a water storage tank via water pipes.

4. The injection mold for a car headlight lens with quick mold change function according to claim 1, characterized in that, A guiding device is provided between the upper mold assembly and the lower mold assembly. The guiding device includes a guide post on the lower mold assembly and a corresponding guide hole on the upper mold assembly.

5. A headlight lens injection mold with quick mold change function according to claim 1, characterized in that, Both the upper mold assembly and the lower mold assembly are made of aluminum.

6. A headlight lens injection mold with quick mold change function according to claim 1, characterized in that, The suction cup is made of silicone rubber.

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