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CN-224224172-U - Internal mold of core lifting pipe making machine

CN224224172UCN 224224172 UCN224224172 UCN 224224172UCN-224224172-U

Abstract

An internal mold of a lifting core pipe making machine relates to the lifting core pipe making field. The novel inner die comprises an inner die body, wherein a conical section is arranged at the top end of the inner die body, a pressure-bearing wear-resisting section is arranged at the lower edge of the conical section, the lower edge of the pressure-bearing wear-resisting section is detachably connected with the inner die body, and the conical section, the pressure-bearing wear-resisting section and the inner die body are coaxial. Further, the pressure-bearing wear-resisting section comprises an annular wear-resisting section body and a first flange plate fixedly connected to the bottom surface; the top edge of the inner die body is provided with a second flange plate, and the first flange plate is matched with the second flange plate and detachably connected. The wear-resistant layer arranged on the thickened wear-resistant section body further improves the wear-resistant performance, and effectively solves the problem that the top socket grinding disc is worn on the pressure-bearing wear-resistant section in the process of rolling and spinning.

Inventors

  • MENG XIANFENG
  • CHEN GUOJUN
  • SHI YONGJUN
  • GAO CHUANFANG
  • MA XIANG

Assignees

  • 江苏江扬建材机械有限公司

Dates

Publication Date
20260512
Application Date
20250520

Claims (7)

  1. 1. The utility model provides an internal mold of rising core tubulation machine, includes centre form body (1) the top of centre form body (1) is equipped with toper section (11), its characterized in that the lower limb of toper section (11) is equipped with pressure-bearing wear-resisting section (12), the lower limb of pressure-bearing wear-resisting section (12) with centre form body (1) can dismantle and be connected, toper section (11), pressure-bearing wear-resisting section (12) and centre form body (1) are coaxial.
  2. 2. An inner die of a core-lifting pipe making machine according to claim 1, wherein the pressure-bearing wear-resisting section (12) comprises an annular wear-resisting section body and a first flange plate (13) fixedly connected to the bottom surface, The top edge of the inner die body (1) is provided with a second flange plate (14), and the first flange plate (13) is matched with the second flange plate (14) and detachably connected.
  3. 3. An inner die of a core-lifting pipe making machine according to claim 2, characterized in that the top edge of the body of the pressure-bearing wear section (12) is connected with the lower edge of the conical section (11).
  4. 4. An inner die of a core-lifting pipe making machine according to claim 1, wherein the pressure-bearing wear-resisting section (12) comprises an annular thickened wear-resisting section body (15), a wear-resisting layer (16) is arranged on the outer surface of the thickened wear-resisting section body (15), The top edge of the thickened wear-resistant section body (15) is connected with the bottom edge of the conical section (11), and the bottom edge of the thickened wear-resistant section body (15) is connected with the top edge of the inner die body (1).
  5. 5. An inner die of a core-lifting pipe making machine according to claim 4, characterized in that the wear-resistant layer (16) is a wear-resistant alloy ring.
  6. 6. An inner die of a core-lifting pipe making machine according to claim 4, wherein the wear-resistant layer (16) is a plurality of arc-shaped wear-resistant alloy sheets uniformly distributed on the outer surface of the thickened wear-resistant section body (15).
  7. 7. An inner die of a core lifting pipe making machine according to claim 1, characterized in that a plurality of spokes (17) which are uniformly distributed are arranged in the cylinder body of the pressure-bearing wear-resisting section (12).

Description

Internal mold of core lifting pipe making machine Technical Field The utility model relates to the field of core-lifting pipe making, in particular to an improvement of an internal mold structure of a core-lifting pipe making machine. Background The core-lifting pipe making machine is novel concrete pipe making equipment combining the advantages of radial extrusion and core mould vibration technology, and high-efficiency and high-compactness pipeline forming is realized through high-frequency vibration and automatic control. The inner die of the core-lifting pipe making machine is vertically lifted through a hydraulic system and matched with the outer die to form a pipe body cavity. Concrete is injected from a bottom distributing device, the faucet is compacted through high-frequency vibration and mechanical rolling, and finally, one-step forming of the pipe body is realized. As shown in fig. 6, under the pressure of the socket grinding disc 3 at the top of the die orifice, the top edge of the tube blank 5 is pressed by the internal die 1, the external die 2 and the socket grinding disc 3 in the gradual forming process, so that abrasion is formed on the die orifice top 4 (the shadow part in fig. 6) of the internal die 1, the abrasion of the internal die 1 can directly affect the forming quality and size of the tube, and the problems of poor fit with the socket, reduced sealing performance and the like are caused. In order to solve the problems, the existing measure can only replace the whole internal mold, but the method has higher cost. Therefore, how to improve the wear resistance of the inner mold and reduce the cost is a technical problem to be solved in the art. Disclosure of utility model Aiming at the technical problems, the utility model provides the internal mold of the core-lifting pipe making machine, which can conveniently replace a vulnerable area and further reduce the processing cost. The novel inner mold comprises an inner mold body, wherein a conical section is arranged at the top end of the inner mold body, a pressure-bearing wear-resisting section is arranged at the lower edge of the conical section, the lower edge of the pressure-bearing wear-resisting section is detachably connected with the inner mold body, and the conical section, the pressure-bearing wear-resisting section and the inner mold body are coaxial. Further, the pressure-bearing wear-resisting section comprises an annular wear-resisting section body and a first flange plate fixedly connected to the bottom surface; The top edge of the inner die body is provided with a second flange plate, and the first flange plate is matched with the second flange plate and detachably connected. Further, the top edge of the pressure-bearing wear-resisting section body is connected with the lower edge of the conical section. Further, the pressure-bearing wear-resisting section comprises an annular thickened wear-resisting section body, and a wear-resisting layer is arranged on the outer surface of the thickened wear-resisting section body; The top edge of the thickened wear-resistant section body is connected with the bottom edge of the conical section, and the bottom edge of the thickened wear-resistant section body is connected with the top edge of the inner die body. Further, the wear-resistant layer is a wear-resistant alloy ring. Further, the wear-resistant layer is a plurality of arc-shaped wear-resistant alloy sheets uniformly distributed on the outer surface of the thickened wear-resistant section body. Further, a plurality of spokes which are uniformly distributed are arranged in the cylinder body of the pressure-bearing wear-resisting section. According to the utility model, the detachable and replaceable pressure-bearing wear-resistant section is arranged at the bottom of the conical section and the top edge of the inner die body, so that the whole inner die is prevented from being replaced after partial abrasion. The mold can be reused only by replacing local components, so that the use cost is greatly saved. The utility model provides two different embodiments under the conception, namely, the flange type is more convenient to replace, and the welding type pressure-bearing wear-resisting section is removed by adopting cutting measures during replacement, and new parts are welded to continue to be applied. In addition, the wear-resistant layer arranged on the thickened wear-resistant section body further improves the wear-resistant performance, and effectively solves the problem that the top socket grinding disc is worn on the pressure-bearing wear-resistant section in the process of spinning in the rolling process. Drawings In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only s