A runner mold and lens manufacturing apparatus for lens production

Abstract

This utility model relates to a runner mold and lens production apparatus for lens manufacturing, including a lens forming mold and a runner mold for lens manufacturing. The runner mold for lens manufacturing includes a glue inlet and glue inlet channels. The glue inlet channels include several main channels and branch channels. One end of each main channel is connected to the glue inlet, and the other end is connected to three branch channels. Each branch channel has a glue outlet at its end. The lens forming mold has several mold cavities, and each mold cavity corresponds to the glue outlet of one of the branch channels. This utility model's runner mold for lens manufacturing, by setting three branch channels in each main channel, increases the number of parts produced per mold cycle, improves the production efficiency of a single hot runner, and reduces production costs.

Description

Technical Field

[0001] This utility model relates to the field of optical lens manufacturing equipment, specifically to a flow channel mold and lens manufacturing device for lens manufacturing. Background Technology

[0002] The main runner of existing lens production runner molds is usually divided into two runners, which results in low production efficiency. Each mold also requires a corresponding hot runner, and due to the high price of hot runners, this production method is costly. Utility Model Content

[0003] Based on this, the purpose of this utility model is to provide a flow channel mold for lens production, which increases the number of molds produced by a single mold under the same molding cycle, improves production efficiency, reduces the amount of hot runners used, and lowers costs.

[0004] First aspect:

[0005] A flow channel mold for lens production includes a glue inlet and a glue inlet flow channel. The glue inlet flow channel includes several main channels and branch channels. One end of each main channel is connected to the glue inlet, and the other end is connected to three branch channels. Each branch channel has a glue outlet at its end.

[0006] The present invention discloses a flow channel mold for lens production, which sets three branch channels in each main flow channel, increases the number of molds that can be produced at one time, improves the production efficiency of a single hot nozzle, and reduces production costs.

[0007] As a preferred embodiment, the three branch channels connected to the same main channel are divided into one intermediate branch channel and two side branch channels. The intermediate branch channel is located at the end of the main channel, and the side branch channels are located on both sides of the main channel.

[0008] As a preferred embodiment, the two side branch channels connected to the same main channel are symmetrically arranged with respect to the middle branch channel.

[0009] As a preferred embodiment, any one of the main flow channels and the three branch flow channels connected to it are located on the same horizontal plane. Having the main flow channel and branch flow channels on the same horizontal plane makes the flow of raw materials within the main flow channel more stable and also makes the flow of raw materials from the main flow channel to the branch flow channels smoother, thus improving the consistency of the lens products.

[0010] As a preferred embodiment, the main channel is arc-shaped. Since the intermediate branch channel is located at the end of the main channel, the resistance to the material entering the intermediate branch channel from the main channel is minimal, and the speed of entering the intermediate branch channel is also the fastest. Therefore, setting the main channel to be arc-shaped avoids the intermediate branch channel being in a straight line with the main channel. At the same time, it slows down the flow rate of the material in the main channel, making the flow rate of the material entering the intermediate branch channel and the two branch channels similar, further improving the consistency of the lens products.

[0011] As a preferred embodiment, several of the main channels are radially distributed around the glue inlet.

[0012] As a preferred embodiment, the main flow channels have 8 channels. Each mold is designed with 8 main flow channels, and each main flow channel connects to 3 branch flow channels. That is, a single mold can produce 24 lenses at a time. Compared with most existing lens production molds that only have 6 main flow channels, each main flow channel connects to 2 branch flow channels or have no branch flow channels, the production efficiency is greatly improved. To produce the same number of lenses, the number of molds required is greatly reduced, and therefore fewer hot runners are needed, thus reducing production costs.

[0013] As a preferred embodiment, the main runner also includes a material suction platform. After the sprue column is cut after injection molding, the remaining sprue column waste needs to be ejected. This waste is typically collected by a suction nozzle, and the material suction platform provides a supporting surface for the waste sprue column to be collected.

[0014] The second aspect:

[0015] A lens manufacturing apparatus includes a lens forming mold and a runner mold for lens manufacturing as described in the first aspect. The lens forming mold has a plurality of mold cavities, each of which corresponds to a glue outlet of one of the runners. The mold cavities are used for lens forming. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a flow channel mold used in lens manufacturing.

[0017] Figure 2 This is a top view of a runner mold used in lens manufacturing;

[0018] Figure 3 This is a bottom view of a runner mold used in lens manufacturing;

[0019] Among them, 1-inlet, 21-main channel, 22-middle branch channel, 23-side branch channel, 24-suction platform, 25-outlet. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0023] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0024] The lens production apparatus of this utility model includes a lens forming mold and a runner mold for lens production. The lens forming mold has a plurality of mold cavities. In this embodiment of the utility model, the lens forming mold is a sprue column.

[0025] like Figure 1-3 As shown, the runner mold for lens production includes a sprue 1 and sprue channels. The sprue 1 is connected to a hot runner (not shown). The sprue channels include 8 main runners 21 and 24 branch runners, all located on the same horizontal plane. The 8 main runners 21 are radially distributed around the sprue 1. Each main runner 21 is arc-shaped, with one end connected to the sprue 1 and the other end connected to 3 branch runners. The 3 branch runners are divided into 1 central branch runner 22 and 2 side branch runners 23. Each branch runner also has an outlet 25 at its end, and each outlet 25 corresponds to one of the mold cavities of the sprue post. The central branch runner 22 is located in the extension direction of the end of the main runner 21, and the side branch runners 23 are symmetrically arranged on the left and right sides of the main runner 21. The angle between the central branch runner 22 and the adjacent side branch runners 23 on the left and right sides is 90°. A circular suction platform 24 is also provided on the main runner 21.

[0026] The working principle of the lens production device of this utility model is as follows:

[0027] A sprue column is placed above the mold. The sprue column has several mold cavities. The outlet 25 of each runner is connected to one of the mold cavities. After the raw material is heated by the hot nozzle, it flows into the inlet runner through the inlet 1. It flows into the runner through the arc-shaped main runner 21 and then into the runner through the outlet 25 of the middle runner 22 and the side runner 23. After the lens is formed in the sprue column, the cutting device cuts the lens in the sprue column, separates and collects the lens. After the cutting is completed, the suction nozzle is aligned with the top of the suction platform 24 to suck up the waste material of the sprue column and throw it out, thus completing one lens production.

[0028] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. For those skilled in the art, various modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A runner mold for lens production, characterized by, It includes an inlet and an inlet channel. The inlet channel includes several main channels and branch channels. One end of each main channel is connected to the inlet and the other end is connected to three branch channels. Each branch channel has an outlet at its end.

2. The runner mold for lens production according to claim 1, wherein The three branch channels connected to the same main channel are divided into one intermediate branch channel and two side branch channels. The intermediate branch channel is located at the end of the main channel, and the side branch channels are located on both sides of the main channel.

3. The runner mold for lens production according to claim 2, wherein The two side branch channels connected to the same main channel are symmetrically arranged with respect to the middle branch channel.

4. The runner mold for lens production according to claim 3, wherein Each of the main flow channels and the three branch flow channels connected to it are located on the same horizontal plane.

5. The runner mold for lens production according to claim 4, wherein the main runner is arc-shaped.

6. A flow channel mold for lens production according to claim 1, characterized in that, Several of the main channels are radially distributed around the glue inlet.

7. The runner mold for lens production according to claim 1, wherein There are 8 main roads.

8. The runner mold for lens production according to claim 1, wherein The main channel also includes a material suction platform.

9. A lens manufacturing apparatus, comprising a lens forming mold and a flow channel mold for lens manufacturing as described in any one of claims 1 to 8, wherein the lens forming mold has a plurality of mold cavities, and each mold cavity corresponds to the glue outlet of one of the flow channels.

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