CN111761789A

CN111761789A - Novel injection mold and using method thereof

Info

Publication number: CN111761789A
Application number: CN202010611689.7A
Authority: CN
Inventors: 耿敏敏; 张坤; 卫春军
Original assignee: Jiangyin Jiusheng Technology Co ltd
Current assignee: Jiangyin Jiusheng Technology Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-10-13

Abstract

The invention provides a novel injection mold and a using method thereof, wherein the novel injection mold comprises an injection mold and an extrusion device; the injection mold comprises an injection molding cavity and a rotating shaft located at the center of the injection mold, a protrusion is arranged at the bottom of the injection molding cavity, the extruding device comprises a first extruding device and a second extruding device, the first extruding device and the injection molding cavity surround to form a first cavity, the second extruding device and the first cavity surround to form a second cavity, and the first extruding device and the second extruding device are the same in quantity. The invention has the beneficial effects that: the technical problems that the limitation of a die in a rubber ring production line in the prior art is limited and the cost cannot be solved are solved, the cost in the rubber ring production process can be effectively reduced through the technical scheme provided by the invention, and a large amount of rubber rings can be produced simultaneously.

Description

Novel injection mold and using method thereof

Technical Field

The invention relates to an injection mold, in particular to a novel injection mold and a using method thereof.

Background

Because the working environment of the rubber ring for cutting has high requirements on the material, the rubber ring is produced by adopting an integrally formed high-strength polymer material in the market, but the material has high cost and is difficult to produce.

Disclosure of Invention

In order to solve the technical problems, the invention discloses a novel injection mold and a using method thereof, and the technical scheme of the invention is implemented as follows:

a novel injection mold comprises an injection mold and an extrusion device; the injection mold comprises an injection molding cavity and a rotating shaft located at the center of the injection mold, a protrusion is arranged at the bottom of the injection molding cavity, the extruding device comprises a first extruding device and a second extruding device, the first extruding device and the injection molding cavity surround to form a first cavity, and the second extruding device and the first cavity surround to form a second cavity.

Preferably, the number of injection molding cavities is 2 or a multiple of 2.

Preferably, the convex cross-sectional shape is triangular.

Preferably, the first cavity cross-sectional shape is a V-shape.

Preferably, the injection molding machine further comprises a buffer device, and the buffer device is connected with the injection molding mold.

A plastic molding machine comprising a novel injection mold according to claim 1.

A method for producing a rubber ring by using the plastic molding machine of claim 6, comprising the steps of,

s1: primary extrusion forming: enclosing the injection molding cavity and the first extrusion device to form the first cavity, injecting a high-strength high polymer material into the first cavity, and carrying out extrusion molding;

s2: rotating the mold: rotating the injection mold by 180 degrees;

s3: secondary extrusion forming: and enclosing the injection molding cavity and the second extrusion device to form the second cavity, injecting a common high polymer material into the second cavity, and carrying out extrusion molding.

Preferably, the step S3 is performed by secondary extrusion using scraps and/or scraps.

A rubber grommet made using the method of claim 8, wherein: including driving layer and protective layer, the driving layer shape is the V type, the protective layer is provided with V type recess, the driving layer embedding in the V type recess and through the extrusion with the protective layer forms an organic whole.

By implementing the technical scheme of the invention, the technical problems of high production cost and difficult production of the cutting rubber ring in the prior art can be solved; by implementing the technical scheme of the invention, the technical effects of reducing the cost and improving the production efficiency on the basis of ensuring the strength of the rubber ring can be realized through twice extrusion forming.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of an injection mold in example 1;

FIG. 2 is a schematic structural diagram of a first cavity;

FIG. 3 is a schematic view of a second cavity structure;

fig. 4 is a schematic diagram of a rubber ring structure.

In the above drawings, the reference numerals denote:

1, injection mold

1-1, injection molding cavity 1-2, rotating shaft 1-3 and protrusion

2, extruding device

2-1, a first extrusion device 2-2, a second extrusion device

3, first cavity

4, second cavity

5, a buffer device

6, drive layer

7, protective layer

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

In a specific embodiment 1, as shown in fig. 1, 2 and 3, a novel injection mold comprises an injection mold 1 and an extrusion device 2; the injection mold 1 comprises an injection molding cavity 1-1 and a rotating shaft 1-2 located in the center of the injection mold, a protrusion 1-3 is arranged at the bottom of the injection molding cavity 1-1, the extrusion device 2 comprises a first extrusion device 2-1 and a second extrusion device 2-2, the first extrusion device and the injection molding cavity are surrounded to form a first cavity 3, the second extrusion device 2-2 and the first cavity 3 are surrounded to form a second cavity 4, and the first extrusion device 2-1 and the second extrusion device 2-2 are identical in quantity.

In this embodiment, the injection mold 1 can rotate around the rotating shaft 1-2, the first cavity 3 formed by the injection molding cavity 1-1 and the first extrusion device 2-1 is used for injecting high-strength wear-resistant polymer materials, such materials are expensive, the materials are cooled to form a ring after extrusion molding, then the second cavity 4 is formed by the second extrusion device 2-2 surrounding the cooled high-strength wear-resistant polymer materials and the injection molding cavity 1-1, the second cavity 4 is used for injecting general polymer materials, such materials are low in price, waste polymer materials used by other processes can also be used, the resource utilization efficiency is improved, pollution is reduced, and the cost can also be effectively reduced.

Example 2

In a preferred embodiment 2, the number of injection cavities 1-1 is 2 or a multiple of 2.

When the number of the injection molding cavities 1-1 is 2, the injection mold 1 rotates 180 degrees, and the production process of a rubber ring can be completed.

When the number of the injection molding cavities 1-1 is 4, the injection mold 1 rotates 180 degrees to complete the production process of two rubber rings.

When the number of the injection molding cavities 1-1 is larger, the injection mold 1 rotates 180 degrees to complete the production process of a plurality of rubber rings. This embodiment has realized large batch rubber ring production.

In a preferred embodiment, the projections 1-3 are triangular in cross-sectional shape.

This embodiment mainly used cutting rubber ring's production, the during operation of cutting rubber ring, the outer lane need contact with the wire and violently rotate, through the incessant rotatory cutting that realizes of wire, this wherein is very big to the wearing and tearing of rubber ring, and traditional rubber ring wholly adopts high strength macromolecular material to make, and the cost is very high, and this embodiment sets up the arch into triangle-shaped, is exactly in order to produce the recess that cutting rubber ring reserved fixed wire.

In a preferred embodiment, the first cavity 3 has a V-shaped cross-sectional shape.

The embodiment further optimizes the technical effect of reducing the cost, and when the cross section of the first cavity 3 is in the V shape, the high-strength high polymer material adopted for producing the rubber ring is the least, and the cost is the lowest.

Example 3

In a preferred embodiment 3, the injection mold further comprises a buffer device 5, and the buffer device 5 is connected with the injection mold 1.

In the present embodiment, the buffer device 5 is designed to optimize the stability during the extrusion process, reduce the vibration during the production process, and improve the quality of the rubber gasket.

Example 4

In a specific embodiment 4, a plastic molding machine comprising a novel injection mold according to claim 1.

In this embodiment, the novel injection mold according to claim 1 is used to produce plastic rubber rings, which not only can be mass produced, but also can greatly reduce the production cost and improve the resource utilization efficiency.

Example 5

In a specific embodiment 5, a method for producing a rubber ring using the plastic molding machine of claim 6, comprising S1: primary extrusion forming: enclosing the injection molding cavity 1-1 and the first extrusion device 2-1 to form a first cavity 3, injecting a high-strength high polymer material into the first cavity 3, and carrying out extrusion molding;

s2: rotating the mold: rotating the injection mold 1 by 180 degrees;

s3: secondary extrusion forming: and enclosing the injection molding cavity 1-1 and the second extrusion device 2-2 to form a second cavity 4, injecting a common high polymer material into the second cavity 4, and carrying out extrusion molding.

The rubber ring manufactured by the method of the embodiment can effectively reduce the manufacturing cost, the required high-strength polymer material is only used in the step S1, the common material used in the step S3 can effectively reduce the cost, and the extruded common polymer layer in the step S3 can also effectively protect the high-strength polymer layer in the step S1.

In a preferred embodiment, the S3 step uses scrap and/or scraps to perform secondary extrusion.

In the embodiment, the cost for producing the rubber ring in the embodiment 5 is further reduced, the resource utilization rate can be effectively improved, the pollution is reduced, and the rubber ring is environment-friendly and economical.

Example 6

In a specific example 6, as shown in fig. 4, a rubber gasket manufactured by the method of claim 8 comprises a driving layer 6 and a protective layer 7, wherein the driving layer 6 is V-shaped, the protective layer 7 is provided with a V-shaped groove, and the driving layer 6 is embedded in the V-shaped groove and is integrated with the protective layer 7 through extrusion.

The rubber ring in this embodiment adopts secondary extrusion for cutting the rubber ring, compares with traditional rubber ring, and the high strength macromolecular material who uses in this embodiment still less, guarantees the rubber ring quality on reduce cost's basis.

It should be understood that the above-described embodiments are merely exemplary of the present invention, and are not intended to limit the present invention, and that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a novel injection mold which characterized in that: comprises an injection mould and an extrusion device; the injection mold comprises an injection molding cavity and a rotating shaft located at the center of the injection mold, a protrusion is arranged at the bottom of the injection molding cavity, the extruding device comprises a first extruding device and a second extruding device, the first extruding device and the injection molding cavity surround to form a first cavity, and the second extruding device and the first cavity surround to form a second cavity.

2. A novel injection mold according to claim 1, characterized in that: the number of the injection molding cavities is 2 or a multiple of 2.

3. A novel injection mold according to claim 1, characterized in that: the cross section of the bulge is triangular.

4. A novel injection mold according to claim 3, characterized in that: the cross section of the first cavity is V-shaped.

5. A novel injection mold according to claim 1, characterized in that: the injection mold further comprises a buffering device, and the buffering device is connected with the injection mold.

6. A plastic molding machine is characterized in that: comprising a new injection mold according to claim 1.

7. A method of producing a rubber ring using the plastic molding machine of claim 6, characterized in that: comprises the following steps of preparing a mixture of a plurality of raw materials,

s2: rotating the mold: rotating the injection mold by 180 degrees;

8. A method of producing a rubber ring according to claim 7, wherein: in the step S3, leftover materials and/or waste materials are used for secondary extrusion forming.

9. A rubber grommet made using the method of claim 8, wherein: comprises a driving layer and a protective layer; the driving layer is V-shaped, the protective layer is provided with a V-shaped groove, and the driving layer is embedded into the V-shaped groove and is integrated with the protective layer through extrusion.