Linear feeding structure of injection mold

Abstract

The utility model discloses a linear type feeding structure of an injection mold. The linear type feeding structure comprises an injection mold body, the first mold cavities are formed in the injection mold body, the number of the first mold cavities is at least three, the edges of every two first mold cavities make contact with each other, and a first injection runner allowing rubber materials to flow into the first mold cavities is formed between the edges of every two first mold cavities; the first injection port is formed in one end of the first injection runner; through the arrangement of the first injection runner, the first injection port and the first excess material groove, waste of sizing materials in traditional design is avoided, through the unique design, the number and the length of the injection runners can be well reduced, only one first excess material groove can be formed in each group of cavities, the waste edge volume ratio is greatly reduced, and the utilization rate of the sizing materials is increased.

Description

Technical Field

[0001] The utility model specifically relates to a linear material feeding structure of an injection mold. Background Art

[0002] The layer injection mold mainly adopts mechanical automation control. Through the equipment setting, the rubber is injected into the mold cavity, eliminating the complicated procedure of processing preforms of various sizes, thereby ensuring the stability of product quality; the double-layer injection mold realizes the equipment robot to autonomously grab the product out of the mold and spray the release agent, which greatly saves the auxiliary time in the production process, effectively improves the production efficiency and improves the ability of manual work.

[0003] However, there is still a lot of room for improvement in the design of injection molds, mainly because the injection runner accounts for a large proportion. The injection mold currently adopts an "eight"-shaped feeding method, which is divided into two parts by the feeding port to inject rubber into each cavity; the cavity is designed with a residual material groove at the other end 180° from the injection port and connected to the exhaust hole. There is a waste of rubber in the injection runner and the residual material groove. For this reason, we propose a linear feeding structure for the injection mold. Utility Model Content

[0004] The purpose of the utility model is to provide a linear material feeding structure of an injection mold to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a linear feeding structure of an injection mold, comprising:

[0006] Injection mold body;

[0007] A first cavity is provided on the injection mold body, and the first cavity is provided at least three times, the edges of every two first cavities are in contact with each other, and a first injection flow channel for flowing rubber material into the first cavity is opened between the edges of every two first cavities;

[0008] A first injection port, disposed at one end of the first injection channel;

[0009] The first residual material groove is arranged at one edge of the first cavity.

[0010] Preferably, a second flow channel is provided on one side wall of the first residual material trough, and a first exhaust hole is provided at one end of the second flow channel.

[0011] Preferably, four first exhaust holes are provided.

[0012] Preferably, the first injection channel is in the shape of a straight line.

[0013] Preferably, the first cavity is annular, and the centers of three first cavities intersect to form an equilateral triangle.

[0014] Preferably, a frame-shaped sealing groove is provided on the injection mold body, and a sealing strip is provided inside the sealing groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] By providing a first injection channel, at least three first cavities, a first injection port and a first residual material trough, the waste of rubber in the traditional design is avoided. The unique design of the device can well reduce the number and length of injection channels, and only one first residual material trough can be provided for each group of cavities, which greatly reduces the waste edge volume ratio and improves the utilization rate of the rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the first injection port structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the existing injection mold structure. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 3 The utility model provides a technical solution: a linear feeding structure of an injection mold, comprising:

[0022] Injection mold body 1;

[0023] The first cavity 3 is arranged on the injection mold body 1, and the first cavity 3 is arranged at least three places, and the edges of every two first cavities 3 are in contact with each other, which is convenient for arranging the first injection flow channel 7, so that the first injection flow channel 7 can better inject the rubber material into the inner sides of the two contacting first cavities 3, and the first injection flow channel 7 for flowing the rubber material into the inner sides is opened between the edges of every two first cavities 3;

[0024] A first injection port 2 is provided at one end of the first injection channel 7 for easy injection;

[0025] The first excess material groove 4 is arranged at the edge of one of the first cavities 3 to facilitate the discharge and accommodation of excess rubber material.

[0026] In this embodiment, preferably, a second flow channel is provided on one side wall of the first residual material trough 4, and a first exhaust hole 5 is provided at one end of the second flow channel to facilitate exhausting the gas in the cooling and molding process.

[0027] In this embodiment, preferably, four first exhaust holes 5 are provided to facilitate better exhaust effect.

[0028] In this embodiment, preferably, the first injection channel 7 is in the shape of a straight line, so as to better inject the rubber into the two contacting first cavities 3 .

[0029] In this embodiment, preferably, the first cavity 3 is annular, and the centers of the three first cavities 3 intersect to form an equilateral triangle, which is convenient for shortening the length of the first injection channel 7 and thus reducing the waste of rubber.

[0030] In this embodiment, preferably, a frame-shaped sealing groove 6 is provided on the injection mold body 1, and a sealing strip is provided inside the sealing groove 6 to facilitate mold closing and sealing at a later stage.

[0031] The working principle and use process of the utility model: the existing injection mold such as Figure 3 As shown, the second injection channel 9 is in an "eight" shape, and the rubber material flowing in through the second injection port 8 flows into the inner side of the second cavity 10 through the second injection channel 9, and each second cavity 10 is provided with a second residual material groove 11 at the edge, and then the excess rubber material flows into the inner side of the second residual material groove 11, and finally the gas of the rubber material is discharged from the second exhaust hole 12;

[0032] The device can make the rubber material flow from the first injection port 2 to the inner sides of the three first cavities 3 through the first injection channel 7, and then the residual material inside the three first cavities 3 flows into the first residual material groove 4, and the gas of the rubber material is discharged from the first exhaust hole 5. Compared with the existing structure, the "eight"-shaped injection channel is changed to a "one"-shaped first injection channel 7, one injection channel is reduced, and the length of the first injection channel 7 is shorter, which can reduce the waste of rubber material. The other three first cavities 3 constitute a group of cavities, and each group of cavities only processes one first residual material groove 4, which reduces the waste edge volume ratio to a certain extent and improves the utilization rate of the rubber material.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A linear feeding structure of an injection mold, characterized in that: include: Injection mold body (1); A first mold cavity (3) is arranged on the injection mold body (1), and the first mold cavity (3) is arranged at least three times, the edges of every two of the first mold cavities (3) are in contact with each other, and a first injection flow channel (7) for flowing rubber material into the first mold cavity (3) is opened between the edges of every two of the first mold cavities (3); A first injection port (2) is arranged at one end of the first injection channel (7); A first residual material groove (4) is arranged on the edge of one of the first cavities (3).

2. The linear feeding structure of an injection mold according to claim 1, characterized in that: A second flow channel is provided on one side wall of the first residual material trough (4), and a first exhaust hole (5) is provided at one end of the second flow channel.

3. The linear feeding structure of an injection mold according to claim 2, characterized in that: Four first exhaust holes (5) are provided.

4. The linear feeding structure of an injection mold according to claim 1, characterized in that: The first injection channel (7) is in the shape of a straight line.

5. The linear feeding structure of an injection mold according to claim 1, characterized in that: The first mold cavity (3) is annular, and the centers of three of the first mold cavities (3) intersect to form an equilateral triangle.

6. The linear feeding structure of an injection mold according to claim 1, characterized in that: A frame-shaped sealing groove (6) is provided on the injection mold body (1), and a sealing strip is provided inside the sealing groove (6).

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