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CN-224224295-U - Core mold for producing rubber pipeline

CN224224295UCN 224224295 UCN224224295 UCN 224224295UCN-224224295-U

Abstract

The invention relates to the technical field of rubber pipe processing, and provides a core mold for producing a rubber pipeline, which comprises a mold inner pipe, a protection supporting component and a protection supporting component, wherein a supporting inner core is arranged in the mold inner pipe; the support adjusting component comprises a connecting block, the tail end of the swinging rod is provided with an arc-shaped connector, an arc-shaped connecting piece is connected to the arc-shaped connector through a pin shaft, the tail end of the arc-shaped connecting piece is provided with a connecting short rod, and the tail end of the connecting short rod is provided with a support shaft. Through the technical scheme, the problems that in the traditional rubber pipeline production in the prior art, a core mold is used as a key component, a series of production restriction exists, the early core mold is simple in structure, an integral rigid design is often adopted, when the rubber pipeline with a complex shape is produced, demolding is difficult, uniformity of the wall thickness of the pipeline is difficult to ensure, and the rejection rate is high are solved.

Inventors

  • WU GUOYI
  • WANG SHAN

Assignees

  • 河北艾青矿山机械设备有限公司

Dates

Publication Date
20260512
Application Date
20250611

Claims (8)

  1. 1. A mandrel for use in producing a rubber pipeline, comprising: The inner mold comprises an inner mold pipe (1), wherein a supporting inner core (2) is arranged in the inner mold pipe (1); A support adjustment assembly (3), the support adjustment assembly (3) being arranged inside the in-mold tube (1); the protective propping-up assembly (4) is arranged on the outer side wall of the inner mold tube (1); The support adjusting assembly (3) comprises a connecting block (3-1), the connecting block (3-1) is arranged on the side wall of the support inner core (2), a swinging rod (3-2) is connected to the connecting block (3-1) through a pin shaft, an arc-shaped connecting head (3-3) is arranged at the tail end of the swinging rod (3-2), an arc-shaped connecting sheet (3-4) is connected to the arc-shaped connecting head (3-3) through a pin shaft, a connecting short rod (3-5) is arranged at the tail end of the arc-shaped connecting sheet (3-4), and a supporting shaft (3-6) is arranged at the tail end of the connecting short rod (3-5).
  2. 2. A core mould for producing rubber pipes according to claim 1, characterized in that the inner side wall of the inner mould tube (1) is provided with a positioning hole (3-7), one end of the support shaft (3-6) is inserted into the positioning hole (3-7), one end of the support shaft (3-6) inserted into the positioning hole (3-7) is provided with a limit disc (3-8), and the limit disc (3-8) is in contact with the inner mould tube (1).
  3. 3. A mandrel for producing a rubber pipeline according to claim 1, characterized in that the protective propping-up assembly (4) comprises a high temperature protective cover (4-1), the high temperature protective cover (4-1) is arranged on the outer side wall of the inner mold pipe (1), a propping-up cavity (4-2) is arranged between the high temperature protective cover (4-1) and the inner mold pipe (1), one end of the supporting shaft (3-6) is inserted into the propping-up cavity (4-2), a propping-up sheet (4-3) is arranged at the tail end of the supporting shaft (3-6), and the propping-up sheet (4-3) is embedded into the inner part of the high temperature protective cover (4-1).
  4. 4. A mandrel for use in the production of rubber tubing according to claim 3, wherein said high temperature shield (4-1) is of a circular configuration, said support tabs (4-3) are matched with the internal configuration of said high temperature shield (4-1), a number of said support tabs (4-3) are spliced between a plurality of said support tabs (4-3) to form a circular configuration.
  5. 5. A mandrel for use in the production of rubber tubing according to claim 3, wherein said high temperature shield (4-1) is made of high temperature resistant high temperature vulcanized silicone rubber, and the edges of said high temperature shield (4-1) are in a sealed adhesive connection with the outer side wall of said inner tube (1).
  6. 6. A mandrel for use in the production of rubber tubing according to claim 2, wherein the number of said locating holes (3-7) is several, a plurality of said locating holes (3-7) are uniformly distributed on the inner side wall of said inner tube (1), and a support shaft (3-6) is inserted into each of said locating holes (3-7).
  7. 7. A core mould for producing a rubber pipeline according to claim 3, characterized in that the high temperature protection cover (4-1) is fitted around the outer wall of the inner mould tube (1) along a circle, and the high temperature protection cover (4-1) is supported in a wrinkled state by the supporting sheet (4-3).
  8. 8. A mandrel for use in the production of rubber tubing according to claim 2, wherein the number of said connection blocks (3-1) is several, a plurality of said connection blocks (3-1) are uniformly distributed on the side wall of said support core (2) along a circumference, and the positions of said connection blocks (3-1) correspond to the positions of said positioning holes (3-7).

Description

Core mold for producing rubber pipeline Technical Field The embodiment of the disclosure relates to the technical field of rubber pipe processing, in particular to a core mold for producing a rubber pipeline. Background Rubber pipelines are widely applied in various fields, such as fuel oil, cooling and braking systems in automobile manufacture, medium transportation in petrochemical industry, special pipeline requirements in high-end fields such as aerospace and the like, and the production quality and efficiency of the rubber pipelines are directly related to the product performance and cost of downstream industries. In traditional rubber pipeline production, the mandrel has a series of problems restricting production as key components, the early mandrel has a simple structure, an integral rigid design is often adopted, when the production of the rubber pipeline with a complex shape is faced, the demolding is difficult, the uniformity of the wall thickness of the pipeline is difficult to ensure, the rejection rate is high, for example, when the rubber pipeline with a variable diameter, bending and other special-shaped structures is produced, the mandrel cannot meet the molding requirement, and the product diversified development is greatly limited. From the production technology perspective, the conventional core mold is insufficient in supporting stability of a rubber pipe blank in the vulcanization process, the pipe blank is easy to deform, bulge and other defects under the high-temperature and high-pressure environment, the product quality is affected, the conventional core mold is single in function, the conventional core mold cannot adapt to the characteristics of different rubber materials and the changes of production process parameters, the conventional core mold is similar to some novel rubber materials, such as high-temperature-resistant and strong-corrosion-resistant rubber, the requirements on the thermal stability and chemical resistance of the core mold are extremely high during processing, and the common core mold is difficult to adequate. In addition, along with the increase of the industrial development to the rubber pipeline demand, production efficiency becomes outstanding problem, and traditional mandrel loading and unloading, clearance are loaded down with trivial details, and the change mandrel of different specifications is consuming time for a long time, has seriously restricted production rhythm, and under the large-scale production scene, frequent mandrel adjustment operation leads to equipment downtime to be long, and manufacturing cost increases by a wide margin. Disclosure of utility model In order to overcome the above-mentioned defect, the embodiment of the present disclosure provides a mandrel for producing a rubber pipeline, which solves the technical problems that in the conventional rubber pipeline production in the prior art, the mandrel is used as a key component, a series of production restrictions exist, the early mandrel has a simple structure, an integral rigid design is often adopted, when the complex-shape rubber pipeline is produced, the demolding is difficult, the uniformity of the pipeline wall thickness is difficult to ensure, and the rejection rate is high. According to one aspect, at least one embodiment of the present disclosure provides a mandrel for producing a rubber pipeline, comprising: A support inner core is arranged in the inner mold pipe; a support adjustment assembly disposed inside the mold inner tube; The protection supporting component is arranged on the outer side wall of the inner mold pipe; The support adjusting assembly comprises a connecting block, the connecting block is arranged on the side wall of the support inner core, a swinging rod is connected to the connecting block through a pin shaft, an arc-shaped connector is arranged at the tail end of the swinging rod, an arc-shaped connecting piece is connected to the arc-shaped connector through a pin shaft, a connecting short rod is arranged at the tail end of the arc-shaped connecting piece, and a support shaft is arranged at the tail end of the connecting short rod. As a further technical scheme, the inner side wall of the inner mold pipe is provided with a positioning hole, one end of the supporting shaft is inserted into the positioning hole, one end of the supporting shaft, inserted into the positioning hole, is provided with a limiting disc, and the limiting disc is in contact with the inner mold pipe. As a further technical scheme, the protection supporting component comprises a high-temperature protection cover, the high-temperature protection cover is arranged on the outer side wall of the mold inner pipe, a supporting cavity is arranged between the high-temperature protection cover and the mold inner pipe, one end of the supporting shaft is inserted into the supporting cavity, the tail end of the supporting shaft is provided with a supporting sheet, and the supporting sheet is