Focusing lens machining device

Abstract

The utility model relates to the technical field of lens production, in particular to a focusing lens processing device which comprises a working table, and a lower die and a pressurizing device are fixedly arranged on the working table. The pressurizing device comprises a mounting column fixedly arranged on the workbench, a mounting plate fixedly arranged on the mounting column, a forming air cylinder arranged on the mounting plate, a forming plate arranged at the lower end of a piston rod of the forming air cylinder and an upper mold fixedly arranged at the lower end of the forming plate. A medium flow channel is arranged in the lower die, and an exhaust pipeline is arranged in the upper die. By arranging the medium flow channel and the exhaust pipeline, the glass blank forming quality is effectively improved, the yield is improved, the demolding operation is simplified, meanwhile, the forming temperature is stabilized, the rejection rate is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lens manufacturing technology, and specifically to a focusing lens processing device. Background Technology

[0002] Aspherical lenses are widely used in automotive lighting. Common projection lighting systems in automobiles typically include a light source, a reflector, a light shield, and a lens. The reflector is ellipsoidal, with the light-emitting center of the light source located near the focal point of the ellipsoidal reflector. The light emitted by the light source is reflected by the ellipsoidal reflector and converges near the far focal point. In the manufacturing process, rod-shaped materials are typically cut into blocks of specified dimensions, softened at high temperatures in a rotary kiln, shaped using a mold, and then cooled and solidified in a cooling box to obtain the aspherical lens.

[0003] In actual production, the existing molding mechanism is inconvenient to operate. There is a gap in the operation between when the worker takes the die-cast blank out of the die-casting mold and when the second blank is placed on the die-casting mold. During this period, the heat on the mold will slowly dissipate, resulting in a large temperature difference between the mold and the blank when the second blank is heated. Ultimately, the surface of the die-cast blank will be deformed, affecting the product quality. The production and processing time is long and the surface of the produced products will have bubbles or unevenness, resulting in a low yield. Utility Model Content

[0004] This invention provides a focusing lens processing device to address the problems of the prior art.

[0005] The objective of this utility model can be achieved through the following technical solution: A focusing lens processing device, comprising: a worktable, on which a lower mold and a pressurizing device are fixedly mounted, the pressurizing device comprising a mounting column fixedly mounted on the worktable, a mounting plate fixedly mounted on the mounting column, a forming cylinder mounted on the mounting plate, a forming plate mounted at the lower end of the piston rod of the forming cylinder, and an upper mold fixedly mounted at the lower end of the forming plate, wherein a medium flow channel is provided inside the lower mold, and an exhaust pipe is provided inside the upper mold.

[0006] In a further improvement, the exhaust pipe includes a first exhaust pipe and a second exhaust pipe arranged perpendicularly to each other. One end of the first exhaust pipe is connected to the mold cavity of the upper mold, and one end of the second exhaust pipe is connected to the first exhaust pipe, while the other end is connected to the side wall of the upper mold.

[0007] In a further improvement, the medium flow channel includes a first channel arranged around the lower mold cavity and a second channel communicating with an external constant temperature system, wherein the first channel and the second channel are connected.

[0008] As a further improvement, the first channel is configured with two sets.

[0009] In a further improvement, the mounting plate has a through hole in the middle and guide seats on both sides. The piston rod of the forming cylinder is slidably disposed in the through hole. A guide rod is fixedly disposed at the upper end of the forming plate and is slidably disposed in the guide seat.

[0010] In a further improvement, the lower mold and the upper mold are provided in multiple sets.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In actual use, the worker places the glass blank in the lower mold of the lower worktable, and drives the upper mold to move downward through the forming cylinder, closing with the lower mold to pressurize and form the raw material. During the die casting process, the constant temperature liquid in the medium flow channel circulates to maintain the temperature of the lower mold. The air between the upper mold and the blank flows to the outside through the first and second inlet and outlet pipes, avoiding the accumulation of gas in the mold cavity, which affects the flatness of the glass blank surface during forming, and improving the quality and yield of the product. At the same time, after the die casting is completed, the forming cylinder drives the upper mold to move upward, and the air in the inlet and outlet pipes is blown by external equipment to facilitate the demolding of the blank and prevent the blank from accidentally falling after rising synchronously with the upper mold. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the upper mold of this utility model;

[0014] Figure 3 This is a schematic diagram of the lower mold of this utility model.

[0015] In the diagram, 1 is the workbench; 2 is the lower mold; 21 is the medium flow channel; 211 is the first channel; 212 is the second channel; 3 is the pressurizing device; 31 is the mounting column; 32 is the mounting plate; 321 is the guide seat; 33 is the forming cylinder; 34 is the forming plate; 341 is the guide rod; 35 is the upper mold; 351 is the exhaust pipe; 3511 is the first inlet and outlet pipe; and 3512 is the second inlet and outlet pipe. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The following is a description of the embodiments and appendices. Figures 1-3 The technical solution of this utility model will be further described below.

[0019] Example 1

[0020] A focusing lens processing apparatus includes: a worktable 1, on which a lower mold 2 and a pressurizing device 3 are fixedly mounted. The pressurizing device 3 includes a mounting column 31 fixedly mounted on the worktable 1, a mounting plate 32 fixedly mounted on the mounting column 31, a forming cylinder 33 mounted on the mounting plate 32, a forming plate 34 mounted at the lower end of the piston rod of the forming cylinder 33, and an upper mold 35 fixedly mounted at the lower end of the forming plate 34. The lower mold 2 has a medium flow channel 21 inside, and the upper mold 35 has an exhaust pipe 351 inside. The exhaust pipe 351 includes a first inlet and outlet pipe 3511 and a second inlet and outlet pipe 3512 arranged perpendicularly to each other. One end of the first inlet and outlet pipe 3511 is connected to the mold cavity of the upper mold 35, and one end of the second inlet and outlet pipe 3512 is connected to the first inlet and outlet pipe 3511, and the other end is connected to the side wall of the upper mold 35.

[0021] like Figures 1-3As shown, in actual use, the worker places the glass blank in the lower mold 2 of the lower worktable 1. The upper mold 35 is driven to move downwards by the forming cylinder 33 and close with the lower mold 2 to pressurize and form the raw material. During the die casting process, the constant temperature liquid in the medium flow channel 21 circulates to maintain the temperature of the lower mold. The air between the upper mold 35 and the blank flows to the outside through the first air inlet and exhaust pipe 3211 and the second air inlet and exhaust pipe 3212 to prevent gas from accumulating in the mold cavity and affecting the flatness of the glass blank surface during forming, thereby improving the quality and yield of the product. At the same time, after the die casting is completed, the forming cylinder 33 drives the upper mold 35 to move upwards. Air is blown into the air inlet and exhaust pipe 351 by external equipment to facilitate the demolding of the blank and prevent the blank from accidentally falling after rising synchronously with the upper mold 35.

[0022] As a further preferred embodiment, the medium flow channel 21 includes a first channel 211 arranged around the cavity of the lower mold 2 and a second channel 212 communicating with an external constant temperature system, wherein the first channel 211 and the second channel 212 are connected.

[0023] Specifically, during the processing, cooling water enters the first channel 211 from the external constant temperature system through the second channel 212, carrying away the heat generated by the mold during processing, thereby maintaining the working temperature of the mold and improving processing efficiency and product quality; at the same time, this layout of the medium flow channel 21 can also effectively reduce the thermal deformation of the mold and extend the service life of the mold.

[0024] As a further preferred embodiment, the first channel 211 is provided in two sets to improve the cooling effect.

[0025] As a further preferred embodiment, the mounting plate 32 has a through hole in the middle and guide seats 321 on both sides. The piston rod of the forming cylinder 33 is slidably disposed in the through hole. A guide rod 341 is fixedly disposed at the upper end of the forming plate 34, and the guide rod 341 is slidably disposed in the guide seat 321.

[0026] Specifically, the cooperation between the guide seats 321 on both sides and the guide rod 341 further ensures the stability and straightness of the forming plate 34 during the movement process, effectively preventing the forming plate 34 from tilting or shifting during the pressurization or return process.

[0027] As a further preferred embodiment, the lower mold 2 and the upper mold 35 are provided in multiple sets.

[0028] Specifically, the setup of multiple molds allows for the simultaneous processing of multiple focusing lenses, improving production efficiency.

[0029] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A focusing lens processing apparatus, characterized in that, include: A workbench is provided, on which a lower mold and a pressurizing device are fixedly mounted. The pressurizing device includes a mounting column fixedly mounted on the workbench, a mounting plate fixedly mounted on the mounting column, a forming cylinder mounted on the mounting plate, a forming plate mounted at the lower end of the piston rod of the forming cylinder, and an upper mold fixedly mounted at the lower end of the forming plate. The lower mold has a medium flow channel inside, and the upper mold has an exhaust pipe inside.

2. The focusing lens processing apparatus according to claim 1, wherein The exhaust pipe includes a first exhaust pipe and a second exhaust pipe arranged perpendicularly to each other. One end of the first exhaust pipe is connected to the mold cavity of the upper mold, and one end of the second exhaust pipe is connected to the first exhaust pipe, while the other end is connected to the side wall of the upper mold.

3. The focusing lens processing apparatus according to claim 1, wherein The medium flow channel includes a first channel arranged around the lower mold cavity and a second channel communicating with an external constant temperature system, wherein the first channel and the second channel are connected.

4. The focusing lens processing apparatus according to claim 3, wherein The first channel is configured with two sets.

5. The focusing lens processing apparatus according to claim 1, wherein The mounting plate has a through hole in the middle and guide seats on both sides. The piston rod of the forming cylinder is slidably disposed in the through hole. A guide rod is fixedly disposed at the upper end of the forming plate and is slidably disposed in the guide seat.

6. The focusing lens processing apparatus according to claim 1, wherein The lower mold and the upper mold are provided in multiple sets.

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