CN-224210183-U - Outer die of core lifting pipe making machine

CN224210183UCN 224210183 UCN224210183 UCN 224210183UCN-224210183-U

Abstract

An outer mold of a lifting core pipe making machine relates to the lifting core pipe making field. The novel wear-resistant outer die comprises an outer die body, wherein an outer die top ring is arranged at the top end of the outer die body and is detachably connected with the outer die body, and a wear-resistant layer is arranged on the inner surface of the outer die top ring. Further, the wear-resistant layer is a wear-resistant alloy ring. Further, the wear-resistant layer is a plurality of arc wear-resistant alloy sheets uniformly distributed on the inner wall of the top ring of the outer mold. Further, a first flange plate is fixedly arranged on the top surface of the outer die body, and a second flange plate matched with the first flange plate is fixedly arranged on the bottom surface of the outer die top ring. The utility model effectively solves the problem that the top of the outer die opening is worn under the spinning of the outer die, the inner die and the socket grinding disc in the process of manufacturing the pipe, and only the top ring or the wear-resistant layer of the outer die is needed to be replaced when the wear is generated, thereby greatly reducing the cost of replacing the outer die.

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: 20260508
Application Date: 20250520

Claims (5)

1. An outer die of a core lifting pipe making machine comprises an outer die body (1), and is characterized in that an outer die top ring (11) is arranged at the top end of the outer die body (1), and the outer die top ring (11) is detachably connected with the outer die body (1); the inner surface of the outer mold top ring (11) is provided with a wear-resistant layer (113).
2. An outer die of a core-lifting tube making machine according to claim 1, characterized in that the wear-resistant layer (113) is a wear-resistant alloy ring.
3. An outer die of a core-lifting pipe making machine according to claim 1, characterized in that the wear-resistant layer (113) is a plurality of arc-shaped wear-resistant alloy sheets uniformly distributed on the inner wall of the outer die top ring (11).
4. An outer die of a core-lifting pipe making machine according to claim 1, 2 or 3, characterized in that the top surface of the outer die body (1) is fixedly provided with a flange plate one (111); And a second flange (112) matched with the first flange (111) is fixedly arranged on the bottom surface of the outer die top ring (11).
5. An outer die of a core-lifting pipe making machine according to claim 1, 2 or 3, wherein the outer die top ring (11) is thickened, the inner annular surface of the outer die top ring (11) and the inner surface of the outer die body (1) are positioned on the same inner cylindrical surface, and a positioning step structure is arranged on the bottom surface of the outer die top ring (11).

Description

Outer die 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 outer 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. 5, under the pressure of the socket grinding disc 3 at the top of the die orifice, the top edge of the tube blank 4 is extruded by the outer die 1, the inner die 2 and the socket grinding disc 3 in the gradual forming process in the tube forming process, so that abrasion can be formed inside the mouth edge of the outer die 1, the abrasion of the outer die 1 can directly affect the forming quality and size of the tube, poor matching with the socket, and reduced sealing performance. In order to solve the problems, the existing measures only can replace the whole outer die, but the cost of remanufacturing the whole outer die is high. Therefore, how to improve the wear resistance of the outer mold and reduce the cost is a technical problem to be solved in the field. Disclosure of Invention Aiming at the technical problems, the utility model provides a core lifting pipe making machine which can conveniently replace an easily worn area and further reduce the replacement cost. The technical scheme of the utility model is that the novel plastic composite die comprises an outer die body, wherein an outer die top ring is arranged at the top end of the outer die body, and the outer die top ring is detachably connected with the outer die body; And a wear-resistant layer is arranged on the inner surface of the outer die top ring. Further, the wear-resistant layer is a wear-resistant alloy ring. Further, the wear-resistant layer is a plurality of arc wear-resistant alloy sheets uniformly distributed on the inner wall of the top ring of the outer mold. Further, a first flange plate is fixedly arranged on the top surface of the outer die body; And a second flange plate matched with the first flange plate is fixedly arranged on the bottom surface of the outer die top ring. Further, the outer die top ring is thickened, the inner ring surface of the outer die top ring and the inner surface of the outer die body are positioned on the same inner cylindrical surface, and the bottom surface of the outer die top ring is provided with a positioning step structure. The utility model avoids the situation of replacing the whole outer die when the outer die is partially worn through the detachable replacement outer die top ring and the wear-resistant layer, and the flange type outer die top ring is more convenient to replace in the two different embodiments proposed under the conception above, and can be continuously applied by adopting cutting measures to remove the worn outer die top ring and then welding a new outer die top ring when the outer die top ring is replaced in a welding mode. The wear generated under the spinning of the outer die, the inner die and the socket grinding disc at the top of the outer die opening in the process of manufacturing the pipe is effectively solved, and only the top ring or the wear-resistant layer of the outer die needs to be replaced when the wear is generated, so that the cost of replacing the outer die is greatly reduced. 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 some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Figure 1 is a schematic view of the structure of a first embodiment of the utility model, Figure 2 is an enlarged view at M in figure 1, Figure 3 is a schematic view of the structure of a second embodiment of the utility model, Figure 4 is an enlarged view at N in figure 3, Fig. 5 is a schematic diagram of a background art structure of the present utility model. In the figure: 1 is an outer die body, 11 is an outer die top ring, 111 is a first flange, 112 is a second flange, 113 is a wear-resistant layer, 2 is an inner die, 3 is a socket grinding disc, and 4 is a tube blank; the hollow arrow in the figure indicates the direc