CN-224224296-U - Large-size cylindrical composite material workpiece demolding supporting device

CN224224296UCN 224224296 UCN224224296 UCN 224224296UCN-224224296-U

Abstract

The invention provides a large-size cylindrical composite material workpiece demolding supporting device which comprises a plurality of supporting units, wherein each supporting unit comprises a fixing seat, an ejection block is arranged on each fixing seat through an elastic adjusting component, each elastic adjusting component comprises a limiting rod, an elastic piece is arranged on each limiting rod, a limiting seat is arranged in each ejection block, each limiting rod is fixed with each limiting seat, each ejection block fixing piece on each fixing seat is connected with each ejection block, when the connection between each ejection block fixing piece and each ejection block is released, each ejection block is pushed to one side far away from the center of a mold through each elastic piece, a polytetrafluoroethylene sliding plate on the outer side of each ejection block is in contact with the inner wall of a workpiece, and each polytetrafluoroethylene sliding plate is in sliding fit with the inner wall of the workpiece in the demolding process. According to the invention, the plurality of groups of supporting units are arranged on the die, and the die is dragged into the product along with the steel wire rope, so that the metal die does not contact the inner surface of a workpiece in the demolding process, but contacts the workpiece through the polytetrafluoroethylene sliding plate, and the damage to the product is reduced.

Inventors

ZHU CHAO
TANG ZEHUI
MENG XIANHUI
LIU XICHAO
ZHANG YUAN
SUN QIUYING
WANG XIANGHUA

Assignees

天津爱思达航天科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20231213

Claims (7)

1. The large-size cylindrical composite material workpiece demolding supporting device is characterized by comprising a plurality of supporting units which are arranged on the end surface of a mold at intervals along the circumferential direction; The supporting unit comprises a fixed seat, an ejection block is arranged on the fixed seat through an tightness adjusting assembly, an ejection block fixing piece is arranged between the fixed seat and the ejection block, and a polytetrafluoroethylene sliding plate is arranged on the outer side of the ejection block; The elastic adjusting assembly comprises a limiting rod, an elastic piece is arranged on the limiting rod, a limiting seat which floats along the radial direction of the die is arranged in the ejection block, the limiting rod stretches into the ejection block and is fixed with the limiting seat through the limiting piece, and an ejection block fixing piece on the fixing seat is connected with the ejection block to realize the storage of the ejection block; when the connection between the ejector block fixing piece and the ejector block is released, the ejector block is pushed to the side far away from the center of the die by the elastic piece, so that the polytetrafluoroethylene sliding plate at the outer side of the ejector block is contacted with the inner wall of the workpiece, and the elastic piece is always propped against the ejector block in the demolding process, so that the polytetrafluoroethylene sliding plate is kept in sliding fit with the inner wall of the workpiece.
2. The device for supporting a large-sized cylindrical composite workpiece by demolding of claim 1, wherein the elastic member comprises a spring, the spring is sleeved on the limiting rod, one end of the elastic member is propped against the fixed seat, and the other end is propped against the ejection block.
3. The large-size cylindrical composite workpiece demolding supporting device as claimed in claim 1, wherein the polytetrafluoroethylene slide plate is mounted on the ejection block through a slide plate connecting screw, mounting holes are formed in the polytetrafluoroethylene slide plate, and the outer edge of the slide plate connecting screw is located inside the surface of the polytetrafluoroethylene slide plate.
4. The large-size cylindrical composite workpiece demolding supporting device as claimed in claim 1, wherein the polytetrafluoroethylene sliding plate is of an arc-shaped plate structure.
5. The large-size cylindrical composite workpiece demolding supporting device as claimed in claim 1, wherein two ejector block fixing pieces are respectively arranged on two sides of the limiting rod, and the two ejector block fixing pieces are symmetrically arranged on two sides of the limiting rod.
6. The large-size cylindrical composite workpiece demolding supporting device as claimed in claim 1 or 5, wherein the ejector block fixing piece is a full-thread screw, threads of the full-thread screw are screwed on the fixing seat, and a threaded connection hole matched with the threaded structure of the ejector block fixing piece is formed in the end face of one side of the ejector block, facing the fixing seat.
7. The large-size cylindrical composite workpiece demolding supporting device according to claim 1, wherein the fixing base is detachably mounted on the mold through fixing screws.

Description

Large-size cylindrical composite material workpiece demolding supporting device Technical Field The invention belongs to the technical field of composite material part production equipment, and particularly relates to a large-size cylindrical composite material workpiece demolding supporting device. Background The fiber reinforced composite material integrates the advantages of light weight, high temperature resistance, noise elimination, moisture resistance, fire resistance, corrosion resistance, high strength and the like, and is gradually applied to the fields of aerospace and military industry. When a large-size cylindrical composite material workpiece is demolded in actual production, the workpiece and a die are often scratched, damage is caused to a product, the quality of the product is even affected, and the workpiece cannot be used and scrapped normally finally. In the prior art, in order to avoid the loss caused by sinking of the tail end of a workpiece, a product is generally axially erected during demolding, and then the demolding is performed in the height direction by using a crane, but the operation is limited by a field, and many factory building equipment cannot meet the requirement of vertical demolding in the height direction. Therefore, it is necessary to design a device for assisting in demolding in the horizontal direction to protect the product from damage. Disclosure of Invention In view of the above, the present invention is directed to overcoming the defects in the prior art, and provides a large-sized cylindrical composite workpiece demolding supporting device. In order to achieve the above purpose, the technical scheme of the invention is realized as follows: The large-size cylindrical composite material workpiece demolding supporting device comprises a plurality of supporting units, wherein the supporting units are arranged on the end face of a mold at intervals along the circumferential direction, each supporting unit comprises a fixed seat, an ejection block is arranged on the fixed seat through an elastic adjusting assembly, an ejection block fixing piece is arranged between the fixed seat and the ejection block, and a polytetrafluoroethylene sliding plate is arranged on the outer side of the ejection block; The elastic adjusting assembly comprises a limiting rod, an elastic piece is arranged on the limiting rod, a limiting seat which floats along the radial direction of the die is arranged in the ejection block, the limiting rod stretches into the ejection block and is fixed with the limiting seat through the limiting piece, and the ejection block is connected with the ejection block through an ejection block fixing piece on the fixing seat, so that the ejection block is accommodated, namely, the ejection block is contracted within the coverage range of the die, or in other words, the ejection block does not protrude out of the outer surface of the die along the radial direction of the die; when the connection between the ejector block fixing piece and the ejector block is released, the ejector block is pushed to the side far away from the center of the die by the elastic piece, so that the polytetrafluoroethylene sliding plate at the outer side of the ejector block is contacted with the inner wall of the workpiece, and the elastic piece is always propped against the ejector block in the demolding process, so that the polytetrafluoroethylene sliding plate is kept in sliding fit with the inner wall of the workpiece. Further, the elastic piece comprises a spring, the spring is sleeved on the limiting rod, one end of the elastic piece abuts against the fixing seat, and the other end of the elastic piece abuts against the ejection block. Furthermore, the polytetrafluoroethylene slide plate is arranged on the ejection block through a slide plate connecting screw, the polytetrafluoroethylene slide plate is provided with a mounting hole, and the outer edge of the slide plate connecting screw is positioned in the surface of the polytetrafluoroethylene slide plate. Further, the polytetrafluoroethylene sliding plate is of an arc-shaped plate structure. Furthermore, two sides of the limiting rod are respectively provided with an ejection block fixing piece, and the two ejection block fixing pieces are symmetrically arranged on two sides of the limiting rod. Further, the ejector block fixing piece adopts a full-thread screw, the thread of the full-thread screw is screwed on the fixing seat, and a threaded connection hole matched with the thread structure of the ejector block fixing piece is formed in the end face of one side of the ejector block, which faces the fixing seat. Further, the locating part includes the spacer pin, and the spacing seat is installed in the gag lever post end through the spacer pin rotation to ejecting piece inside is used for installing the space of spacing seat, leaves the clearance that floats along mould radial direction, both realizes connecting, guarantee