Rubber tube production mold

Abstract

The utility model provides a rubber pipe production mould, which comprises an inner mould and an outer mould, the outer mould is sleeved on the inner mould, an extrusion channel is formed between the outer mould and the inner mould, a roll shaft channel is arranged in the middle of the inner mould, and a plurality of positioning columns are arranged at the end part of the inner mould. According to the rubber tube production die, one-time forming can be achieved, exhaust holes can be formed without other tools, and produced rubber tubes are high in inner diameter roundness, high in yield and high in production efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber tube production technical field, concretely relates to a rubber tube production mould. BACKGROUND

[0002] Rubber tube has been widely applied in many fields due to its good chemical performance. In a 3D printer, the rubber tube is used to cover the roller shaft part, and in order to have certain exhaust and deformation capacity, the rubber tube is provided with a plurality of exhaust holes. Therefore, in the production process of the rubber tube, a special mould needs to be used for the extruder to produce. In the existing mould, it is difficult to realize one-time forming, resulting in low inner diameter roundness of the produced rubber tube, low yield and low production efficiency. SUMMARY

[0003] The utility model discloses a rubber tube production mould which aims at solving the problems of low inner diameter roundness and low yield of the existing rubber tube production mould.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a rubber tube production mould, including inner mould and outer mould, the outer mould is sleeved in the inner mould, and the extrusion channel is formed between the outer mould and the inner mould, the middle part of the inner mould is equipped with the roller shaft channel, and the end of the inner mould is equipped with a plurality of positioning columns.

[0006] Optionally, one end of the inner mould is provided with a threaded part, the threaded part is used for connecting with the core shaft of the extruder, and the other end of the inner mould is provided with the positioning column.

[0007] Optionally, part of the positioning column is located inside the outer mould, and the other part of the positioning column is located outside the outer mould.

[0008] Optionally, the inner mould includes a boss part and a cylindrical part, and the positioning column is arranged on the cylindrical part.

[0009] Optionally, the extrusion channel is inclined along the radial direction of the inner mould towards the middle part of the inner mould.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] In the rubber pipe production mold, the inner mold is provided with a plurality of positioning columns, the roller shaft passes through the core shaft of the extruder, the inner mold and the outer mold, when the rubber pipe with the exhaust hole is produced, the rubber in the molten state passes through the extrusion channel and is attached to the roller shaft, the roller shaft is pushed by the external mechanism, the movement of the roller shaft and the extrusion of the rubber are carried out at the same time, the rubber can be attached to the roller shaft to form the rubber pipe, and in this process, the positioning columns of the inner mold can make the rubber pipe form the exhaust hole extending along the axial direction, so that the whole forming process of the rubber pipe with the exhaust hole is completed, one-time forming can be realized, other tools are not needed to form the exhaust hole, the rubber pipe produced has high inner diameter roundness and high yield, and the production efficiency is also higher. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor under the premise of the drawings.

[0013] Figure 1 It is the structure schematic view of the rubber pipe production mold of the utility model;

[0014] Figure 2 It is the structure schematic view of the rubber pipe production mold and the roller shaft of the utility model;

[0015] Figure 3 It is the internal structure schematic view of the rubber pipe production mold and the roller shaft of the utility model;

[0016] Figure 4 It is the structure schematic view of the inner mold of the rubber pipe production mold of the utility model.

[0017] In the drawing: 1, inner mold;2, outer mold;3, positioning column;4, extrusion channel;5, threaded portion;6, boss portion;7, cylindrical portion;8, roller shaft. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiment of the utility model will be described clearly and completely below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0020] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0021] The utility model discloses a rubber pipe production mold. Figures 1 to 4 The utility model discloses a rubber pipe production mold.

[0022] As shown in Figures 1 to 4 The utility model provides a rubber pipe production mold, including inner mould 1 and outer mould 2, and outer mould 2 is sleeved in inner mould 1, and the extrusion channel 4 is formed between outer mould 2 and inner mould 1, and the middle part of inner mould 1 is equipped with roller shaft channel, and the end of inner mould 1 is equipped with a plurality of positioning column 3.

[0023] For the convenience of explanation, in the embodiment, each orientation is as shown in Figure 1 .

[0024] In the rubber pipe production mold provided in the embodiment, the inner mould 1 is provided with a plurality of positioning columns 3, the positioning columns 3 extend along the left-right direction and are located on the left side of the inner mould 1, the roller shaft 8 passes through the core shaft of the extruder, the inner mould 1 and the outer mould 2 from right to left, when producing the rubber pipe with the exhaust hole, the rubber in the molten state passes through the extrusion channel 4 and adheres to the roller shaft 8, the roller shaft 8 is pushed to move from right to left by the external mechanism, the movement of the roller shaft 8 and the extrusion of the rubber are carried out at the same time, the rubber adheres to the roller shaft 8 to form the rubber pipe, and in the process, the positioning columns 3 of the inner mould 1 can make the rubber pipe form the exhaust hole extending along the axial direction, so that the whole forming process of the rubber pipe with the exhaust hole is completed, one-time forming can be realized, other tools are not needed to form the exhaust hole, the rubber pipe produced has high inner diameter roundness, the yield is higher, and the production efficiency is also higher.

[0025] In some embodiments, one end of the inner mould 1 is provided with a threaded part 5, the threaded part 5 is used for being connected with the core shaft of the extruder, the other end of the inner mould 1 is provided with the positioning column 3, specifically, the threaded part 5 is located at the right end of the inner mould 1, and the roller shaft 8 passes through the core shaft of the extruder, the inner mould 1 and the outer mould 2 from right to left, so that the extrusion function can be better realized.

[0026] In some embodiments, a part of the positioning column 3 is located inside the outer mold 2, and another part of the positioning column 3 is located outside the outer mold 2, and the molding effect is better.

[0027] In some embodiments, the inner mold 1 includes a boss part 6 and a cylindrical part 7, and the positioning column 3 is arranged in the cylindrical part 7, so that an inclined extrusion channel 4 can be formed, facilitating molding.

[0028] In some embodiments, the extrusion channel 4 is inclined along the radial direction of the inner mold 1 towards the middle part of the inner mold 1, facilitating molding.

[0029] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, is also included in the patent protection range of the present application.

Claims

1. A rubber tube production mold characterized by comprising: It comprises an inner mold (1) and an outer mold (2), the outer mold (2) is sleeved on the inner mold (1), an extrusion channel (4) is formed between the outer mold (2) and the inner mold (1), the middle part of the inner mold (1) is provided with a roller channel, and the end part of the inner mold (1) is provided with a plurality of positioning columns (3).

2. The rubber tube production mold according to claim 1, characterized by One end of the inner mold (1) is provided with a threaded part (5) for connecting with the core shaft of an extruder, and the other end of the inner mold (1) is provided with the positioning column (3).

3. The rubber tube production mold according to claim 1, characterized by Part of the positioning column (3) is located inside the outer mold (2), and the other part of the positioning column (3) is located outside the outer mold (2).

4. The rubber tube production mold according to claim 1, characterized by The inner mold (1) comprises a boss part (6) and a cylindrical part (7), and the positioning column (3) is arranged on the cylindrical part (7).

5. The rubber tube production mold according to claim 1, characterized by The extrusion channel (4) is inclined along the radial direction of the inner mold (1) towards the middle part of the inner mold (1).

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