Soft core of frosted rubber hose

Abstract

The utility model discloses a soft core of a frosted rubber tube. The rubber tube comprises a rubber tube body, a rubber tube outer surface and an inflation assembly. The rubber pipe main body comprises a rubber pipe inner surface and a rubber pipe outer surface, frosted particles are uniformly and fixedly connected to the surface of the rubber pipe outer surface, an extrusion layer is arranged in the rubber pipe main body, a ball is fixedly connected to the interior of the extrusion layer, and a liquid outlet hole is formed in the rubber pipe outer surface. By means of the structure, when the core is withdrawn, the gas supply system injects gas to enable the expansion body to expand, along with continuous expansion of the expansion body, the supporting ring finally extrudes and breaks the ball, and therefore the core is withdrawn. The lubricant forms a uniform lubricating film on the outer surface of the rubber tube through the liquid outlet holes, the frosted particles on the inner surface of the rubber tube form tiny gaps, air and the lubricant are reserved, and the core withdrawing resistance is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber tube production technical field, especially a kind of frosted rubber tube soft core. BACKGROUND

[0002] In rubber tube manufacturing, mandrel is used to support the inner wall of rubber tube, to ensure the shape and dimensional accuracy of rubber tube during forming, vulcanization or curing process, traditional mandrel is usually made of metal or hard material, but when manufacturing flexible or complex shape rubber tube, hard mandrel has problems such as difficult demolding, easy to damage the inner wall of rubber tube, etc., such as China patent discloses a frosted nylon rubber tube mandrel, its application number is: 201620312015.6, it is drawn into small particle frosted glass-like outer surface through the outer surface of nylon rubber tube mandrel, so that more air and stripping agent can be stored between mandrel body and rubber tube, so that nylon rubber tube mandrel is easy to be taken out when stripping, but the frosted surface also increases the friction between mandrel and the inner wall of rubber tube, which may cause damage to the inner surface of rubber tube, affecting the quality and performance of rubber tube. SUMMARY

[0003] The utility model discloses a kind of frosted rubber tube soft core, ball is extruded rupture by inflation assembly, release the lubricant inside, lubricant flows out by liquid outlet hole, and form uniform lubricating film layer on the outer surface of rubber tube, the inner surface of rubber tube is uniformly distributed with frosted particle, small gap is formed between rubber tube main body and mandrel, air and lubricant can be stored, to significantly reduce stripping resistance.

[0004] The utility model discloses still have the above-mentioned one kind of frosted rubber tube soft core, a kind of frosted rubber tube soft core, it include: rubber tube main body, rubber tube outer surface and inflation assembly;The rubber tube main body includes rubber tube inner surface and rubber tube outer surface, the surface of the rubber tube outer surface is uniformly fixedly connected with frosted particle, the inside of the rubber tube main body is equipped with extrusion layer, the inside of the extrusion layer is fixedly connected with ball, the inside of the rubber tube outer surface is equipped with liquid outlet hole, the ball is located in the inside of extrusion layer and rubber tube outer surface, and with liquid outlet hole each other staggered, the inside of the ball is equipped with lubricant, by the surface of the rubber tube inner surface is uniformly fixedly connected with frosted particle, there is gap between rubber tube main body and rubber tube, air and lubricant can be stored.

[0005] According to the utility model discloses a kind of frosted rubber tube soft core, the inflation assembly includes expansion body, the periphery of the expansion body is uniformly fixedly connected with spring, the side of the spring is fixedly connected with support ring, the side of the expansion body is fixedly connected with connecting joint, ball can be extruded rupture, to release the lubricant inside.

[0006] The utility model discloses a kind of sanding rubber tube soft core, the one end of the rubber tube main body is designed as 3°-5°'s draw mould taper, when withdrawing, contact surface gradually reduces, avoids jamming phenomenon.

[0007] The utility model discloses a kind of sanding rubber tube soft core, the outer surface of the support ring is in close contact with rubber tube inner surface, the support ring and expansion body have bending property, the expansion body is made of natural latex, inflatable assembly with bending property, can adapt to complex working environment.

[0008] The utility model discloses a kind of sanding rubber tube soft core, the connecting joint is fixedly connected with outer tube.

[0009] The utility model discloses a kind of sanding rubber tube soft core, the diameter of the sanding particle is 45 microns-125 microns.

[0010] Beneficial effect: the utility model discloses ball and inflatable assembly and other structures are set, when core is withdrawn, gas injection system injects gas and makes expansion body swell, with the continuous swelling of expansion body, support ring finally extrudes and breaks ball, lubricant forms uniform lubricating film on rubber tube outer surface by liquid outlet hole, sanding particle in rubber tube inner surface forms small gap, air and lubricant are retained, reduce core withdrawal resistance, rubber tube main body one end is designed as 3°-5°'s draw mould taper, when core is withdrawn, contact surface gradually reduces, avoid jamming, ensure that core is withdrawn smoothly. BRIEF DESCRIPTION OF DRAWINGS

[0011] The utility model is further illustrated below in connection with drawings and embodiment;

[0012] Fig. 1 It is the structure diagram of the utility model as a whole;

[0013] Fig. 2 It is the structure diagram of rubber tube main body section of the utility model;

[0014] Fig. 3 It is the structure diagram of inflatable assembly of the utility model.

[0015] Legend:

[0016] 1, rubber tube main body;2, inflatable assembly;

[0017] 101, rubber tube inner surface;102, rubber tube outer surface;103, sanding particle;104, extrusion layer;1041, ball;201, support ring;202, spring;203, expansion body;204, connecting joint. DETAILED DESCRIPTION

[0018] The detailed embodiments of the utility model will be described in detail in this part, the preferred embodiment of the utility model is shown in the drawings, the role of the drawings is to supplement the description of the written part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0019] Referring to Figs. 1-3 The utility model discloses a kind of abrasive tube soft core, including: rubber tube main body 1, rubber tube outer surface 102 and inflation assembly 2;Rubber tube main body 1 includes rubber tube inner surface 101 and rubber tube outer surface 102, the surface of rubber tube outer surface 102 is uniformly fixedly connected with abrasive particle 103, extrusion layer 104 is set in the inside of rubber tube main body 1, ball 1041 is fixedly connected in the inside of extrusion layer 104, liquid outlet hole is set in the inside of rubber tube outer surface 102, ball 1041 is located in the inside of extrusion layer 104 and rubber tube outer surface 102, and with each other staggered, lubricant is arranged in the inside of ball 1041, one end of rubber tube main body 1 is designed as 3 °-5 °'s pullout taper, the diameter of abrasive particle 103 is 45 microns-125 microns.

[0020] Specifically, when rubber tube main body 1 is removed, the surface of rubber tube inner surface 101 is uniformly fixedly connected with abrasive particle 103, so that there is gap between rubber tube main body 1 and rubber tube, air and lubricant can be stored, by designing one end of rubber tube main body 1 as 3 °-5 °'s pullout taper, the contact surface is gradually reduced when being removed, and the jamming phenomenon is avoided.

[0021] Inflation assembly 2 includes expansion body 203, spring 202 is uniformly fixedly connected around expansion body 203, support ring 201 is fixedly connected on one side of spring 202, connecting joint 204 is fixedly connected on one side of expansion body 203, the outer surface of support ring 201 is in close contact with rubber tube inner surface 101, support ring 201 and expansion body 203 have bending property, expansion body 203 is made of natural rubber, and connecting joint 204 is fixedly connected with external air pipe.

[0022] Specifically, connecting joint 204 is fixedly connected with external air pipe, gas injection system starts to inject gas, when gas enters the inside of expansion body 203, expansion body 203 expands, and support ring 201 is extruded, so that support ring 201 is in contact with rubber tube inner surface 101, with the continuous expansion of expansion body 203, support ring 201 finally extrudes and breaks ball 1041, so that the lubricant in the inside of ball 1041 comes out through liquid outlet hole, and uniform lubricating film layer is formed on rubber tube outer surface 102.

[0023] Working principle: when the rubber tube main body 1 is removed, first, the connecting joint 204 is fixedly connected with the external air pipe, the gas supply system is started to inject gas, when the gas enters the inside of the expansion body 203, the expansion body 203 is inflated, the supporting ring 201 is expanded outward, and is in close contact with the inner surface 101 of the rubber tube, with the continuous inflation of the expansion body 203, the supporting ring 201 finally extrudes and breaks the sphere 1041, the internal lubricant is released, the lubricant flows out through the liquid outlet hole, and forms a uniform lubricating film layer on the outer surface 102 of the rubber tube, since the inner surface 101 of the rubber tube is uniformly distributed with the sanding particles 103, a small gap is formed between the rubber tube main body 1 and the mandrel, air and lubricant can be stored, so that the resistance of the core removal is significantly reduced, in addition, one end of the rubber tube main body 1 is designed as a 3°-5° demolding taper, so that the contact area is gradually reduced when the core is removed, the jamming phenomenon is effectively avoided, and the core removal process is more smooth.

[0024] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A sanding hose core, characterized in that, Include: The rubber tube body (1), the rubber tube outer surface (102) and the inflation assembly (2); The rubber tube body (1) includes rubber tube inner surface (101) and rubber tube outer surface (102), the surface of the rubber tube outer surface (102) is uniformly connected with ground glass particles (103), the inside of the rubber tube body (1) is provided with extrusion layer (104), the inside of the extrusion layer (104) is fixedly connected with the sphere (1041), the inside of the rubber tube outer surface (102) is provided with liquid outlet hole, the sphere (1041) is located in the inside of the extrusion layer (104) and the rubber tube outer surface (102), and is staggered with the liquid outlet hole, the inside of the sphere (1041) is provided with lubricant.

2. A flexible abrasive tube according to claim 1, wherein The inflation assembly (2) includes expansion body (203), the periphery of the expansion body (203) is uniformly connected with spring (202), one side of the spring (202) is fixedly connected with support ring (201), one side of the expansion body (203) is fixedly connected with connecting joint (204).

3. A flexible abrasive tube according to claim 1 wherein, One end of the rubber tube body (1) is designed as 3°-5° of the pullout taper.

4. A flexible abrasive tube according to claim 2, wherein The outer surface of the support ring (201) is in close contact with the rubber tube inner surface (101), the support ring (201) and the expansion body (203) have bending property, the expansion body (203) is made of natural rubber.

5. A flexible abrasive tube as defined in claim 2, wherein The connecting joint (204) is fixedly connected with the external trachea.

6. A flexible abrasive tube as defined in claim 1, wherein The diameter of the ground glass particles (103) is 45-125 microns.

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