Plastic key mold

Abstract

The embodiment of the utility model discloses a plastic key mould, which comprises an upper mould, the bottom of the upper mould is provided with a forming groove of a plastic key, the upper mould is provided with a glue inlet hole, a main runner, a branch runner and a glue injection runner which are sequentially communicated, the middle part in the glue injection runner is provided with a glue injection hole, and the glue injection hole is communicated with the forming groove. According to the utility model, the branch runners and the main runner are additionally arranged, and the glue injection hole is formed in the middle of the glue injection runner for intercepting and storing cold glue, so that the glue is more uniformly fed, a plastic key product is smoother to demold, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of plastic button technology, and in particular to a plastic button mold. Background Technology

[0002] Plastic button molds consist of an upper mold and a lower mold, both with molding grooves. After the molds are closed, these grooves form the molding cavity for the plastic button. After the plastic is injected and cooled, the plastic button is obtained. Existing molds for plastic button products suffer from uneven glue distribution, leading to increased defect rates and low production capacity. Therefore, this problem needs to be addressed. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a plastic button mold to improve yield.

[0004] To solve the above-mentioned technical problems, this utility model provides a plastic button mold, including an upper mold, a molding groove for the plastic button at the bottom of the upper mold, and a glue inlet hole, a main channel, a branch channel and a glue injection channel connected in sequence on the upper mold. A glue injection hole is provided in the middle of the glue injection channel and the glue injection hole communicates with the molding groove.

[0005] Furthermore, there are n main channels, 2n branch channels, and 4n glue injection channels, where n is a positive integer. One end of the main channel is connected to the glue inlet hole, and the other end of the main channel is connected to one end of a branch channel on each side. The other end of the branch channel is connected to one end of a glue injection channel on each side. A main intercepting groove is provided at the connection between the main channel and the branch channel, and a branch intercepting groove is provided at the connection between the branch channel and the glue injection channel.

[0006] Furthermore, the main intercepting channel is located on the opposite side of the main channel, and the branch intercepting channel is located on the opposite side of the branch channel.

[0007] Furthermore, the main intercepting channel, the other end of the main channel, and the branches on both sides of the other end of the main channel intersect in a cross shape.

[0008] Furthermore, there are 16n molding grooves, and the injection holes in each injection channel are connected to the four molding grooves respectively.

[0009] The beneficial effects of this utility model are as follows: This utility model adds more branch channels and main channels, and sets the injection hole in the middle of the injection channel to intercept and cool the glue, making the glue flow more uniform, making the plastic button products demold more smoothly, and greatly improving production efficiency. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the plastic button mold according to an embodiment of the present utility model.

[0011] Figure 2This is a structural diagram of the upper mold at one angle according to an embodiment of the present invention.

[0012] Figure 3 This is a structural diagram of the upper mold from another angle in an embodiment of this utility model.

[0013] Explanation of icon numbers

[0014] 1. Upper mold, 2. Molding groove, 3. Injection hole, 4. Main runner, 5. Branch runner, 6. Injection channel, 7. Main cut-off groove, 8. Branch cut-off groove, 9. Lower mold, 10. Injection hole. Detailed Implementation

[0015] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will also change accordingly.

[0017] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0018] Please refer to Figures 1-3 The plastic button mold of this utility model embodiment includes an upper mold. In a specific implementation, it also includes a lower mold, which has a molding groove for the other half of the plastic button. A positioning mechanism is also provided between the upper mold and the lower mold. These parts are all prior art.

[0019] The bottom of the upper mold has a molding groove for the plastic button, and the upper mold has a sequentially connected injection port, main runner, branch runner, and injection channel. Compared with the existing method of using only one main runner and then branching, this invention provides more uniform glue flow and is easier to adjust.

[0020] A glue injection hole is located in the center of the glue injection channel, allowing the end of the channel away from the branch channel to intercept and retain the glue, resulting in more uniform glue flow. The glue injection hole is connected to the molding groove.

[0021] In one implementation, there are n main channels, 2n branch channels, and 4n injection channels, where n is a positive integer. One end of the main channel is connected to the injection port, and the other end of the main channel is connected to one end of a branch channel on each side. The other end of each branch channel is connected to one end of an injection channel on each side. A main intercepting groove is provided at the connection between the main channel and the branch channel, and a branch intercepting groove is provided at the connection between the branch channel and the injection channel. The main intercepting groove and the branch intercepting groove can intercept and retain the glue, making the glue flow more uniform.

[0022] In one implementation, the main intercepting channel is located on the opposite side of the main flow channel, and the branch intercepting channel is located on the opposite side of the branch flow channel. The main intercepting channel, the other end of the main flow channel, and one end of the branch flow channels on both sides of the other end of the main flow channel intersect in a cross shape. There are 16n molding grooves, and the injection holes in each injection channel are connected to four molding grooves. This invention makes the glue flow more uniform while allowing more molding grooves to be set on the upper mold, thus improving production efficiency.

[0023] 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 plastic button mold, comprising an upper mold, wherein the bottom of the upper mold is provided with a molding groove for the plastic button, characterized in that, The upper mold is provided with a sequentially connected injection hole, main channel, branch channel and injection runner. An injection hole is provided in the middle of the injection runner, and the injection hole is connected to the molding groove.

2. The plastic button mold as described in claim 1, characterized in that, There are n main channels, 2n branch channels, and 4n glue injection channels, where n is a positive integer. One end of the main channel is connected to the glue inlet hole, and the other end of the main channel is connected to one end of a branch channel on each side. The other end of the branch channel is connected to one end of a glue injection channel on each side. A main intercepting groove is provided at the connection between the main channel and the branch channel, and a branch intercepting groove is provided at the connection between the branch channel and the glue injection channel.

3. The plastic button mold as described in claim 2, characterized in that, The main intercepting channel is located on the opposite side of the main channel, and the branch intercepting channel is located on the opposite side of the branch channel.

4. The plastic button mold as described in claim 3, characterized in that, The main intercepting channel, the other end of the main channel, and the branches on both sides of the other end of the main channel intersect in a cross shape.

5. The plastic button mold as described in claim 2, characterized in that, There are 16n molding grooves, and the injection holes in each injection channel are connected to the four molding grooves respectively.

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