CN214294373U

CN214294373U - Rubber spare negative pressure environment extrusion moulding mould structure

Info

Publication number: CN214294373U
Application number: CN202023260886.3U
Authority: CN
Inventors: 贺前猛; 卢萍; 乔志壮
Original assignee: Cooper Standard Automotive Kunshan Co Ltd
Current assignee: Cooper Standard Automotive Kunshan Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-28
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a rubber piece negative pressure environment extrusion molding die structure, which comprises a molding die structure, a feed pipe which runs through the interior of the molding die structure, an extrusion flow channel which is arranged in the molding die structure and is communicated with the feed pipe for extruding rubber, a molding groove which is arranged on the end surface of the molding die structure and is positioned at the periphery of the extrusion flow channel for molding the rubber structure, and an exhaust block which is embedded in the extrusion flow channel and is positioned in the molding groove; the surface of the exhaust block is provided with a negative pressure hole which penetrates through the inside of the forming die structure and is communicated with the outside. The utility model discloses an exit position negative pressure environment of mould extrudes rubber spare, rubber spare shaping stable in structure.

Description

Rubber spare negative pressure environment extrusion moulding mould structure

Technical Field

The utility model belongs to the technical field of extrusion tooling, especially, relate to a rubber spare negative pressure environment extrusion moulding mould structure.

Background

The link is extruded at the bush to car rubber sealing strip, can be through hot-blast admission and vulcanization for the sizing material from the original moulding time mould become the elastomer when ripe, the quick even solidification of high-temperature heating process, because the discharge gate effect of blowing is aimed at to hot-blast, lead to rubber sealing strip at the mold in-process entering air of discharging, cause the inflation of the inside cavity structure of rubber sealing strip, the shaping structure that the rubber sealing strip can't reach the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem, and provide rubber spare negative pressure environment extrusion moulding mould structure to realize that the exit position negative pressure environment of mould extrudes the rubber spare, rubber spare shaping stable in structure. In order to achieve the above purpose, the utility model discloses technical scheme as follows:

the rubber piece negative pressure environment extrusion molding die structure comprises a molding die structure, a feeding pipe penetrating the molding die structure, an extrusion flow channel arranged in the molding die structure and communicated with the feeding pipe for extruding rubber, a molding groove arranged on the end face of the molding die structure and positioned at the periphery of the extrusion flow channel for molding the rubber structure, and an exhaust block embedded in the extrusion flow channel and positioned in the molding groove; the surface of the exhaust block is provided with a negative pressure hole which penetrates through the inside of the forming die structure and is communicated with the outside.

Specifically, the forming die structure includes fixed plate, runner plate, a plurality of mouth template that according to the preface coincide and set up and the locking board of each face of locking fixed.

Specifically, the inside of locking plate is equipped with the shaping groove, and the surface of locking plate is equipped with the aspirating hole of intercommunication negative pressure hole.

Specifically, the periphery of the exhaust block is surrounded by the extrusion flow channel.

Specifically, rubber spare negative pressure environment extrusion moulding mould structure is still including locating the structural supplementary subassembly of extruding that is used for with the rubber co-extrusion shaping coating of forming die, supplementary subassembly of extruding including installing the extrusion pipe on the locking plate, with the butt joint of extrusion pipe and be located the feed chute of oral siphon board, feed chute and extrusion flow channel intercommunication.

Compared with the prior art, the utility model discloses rubber spare negative pressure environment extrusion moulding mould structure's beneficial effect mainly embodies:

through set up the exhaust piece in extruding the runner for the inner chamber position of exhaust piece periphery shaping rubber structure is in the negative pressure environment, avoids because the excessive expansion problem that the local position pressure imbalance that high temperature vulcanization blown arouses leads to, and rubber demolding shaping stable in structure accords with the dimensional requirement of setting for.

Drawings

Fig. 1 is one of the schematic structural diagrams of the embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of the present embodiment;

FIG. 3 is a schematic structural diagram of an extrusion flow channel according to the present embodiment;

the figures in the drawings represent:

1 forming die structure, 11 feeding pipes, 2 extrusion flow channels, 3 forming grooves, 4 exhaust blocks, 41 negative pressure holes, 5 fixing plates, 51 flow channel plates, 52-port die plates, 53 locking plates, 6 air suction holes, 7 extrusion pipes and 71 feeding grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1-3, the present embodiment is a rubber piece negative pressure environment extrusion molding mold structure, including a molding mold structure 1, a feeding pipe 11 penetrating through the molding mold structure 1, an extrusion flow channel 2 disposed in the molding mold structure 1 and communicating with the feeding pipe 11 for extruding rubber, a molding groove 3 disposed on an end surface of the molding mold structure 1 and located at the periphery of the extrusion flow channel 2 for molding a rubber structure, and an exhaust block 4 embedded in the extrusion flow channel 2 and located in the molding groove 3; the surface of the exhaust block 4 is provided with a negative pressure hole 41 which penetrates from the inside of the molding die structure 1 to communicate with the outside.

The molding die structure 1 includes a fixing plate 5, a runner plate 51, a plurality of opening plates 52, and a locking plate 53 for locking and fixing the surfaces of the plates.

The inside of locking plate 53 is equipped with profiled groove 3, and the surface of locking plate 53 is equipped with the aspirating hole 6 of intercommunication negative pressure hole 41.

A feed pipe 11 is connected to the extruder for feeding in the rubber material in the molten state.

The outer periphery of the exhaust block 4 is surrounded by the extrusion flow path.

The rubber part negative pressure environment extrusion molding die structure further comprises an auxiliary extrusion assembly arranged on the molding die structure 1 and used for co-extruding the molding coating with rubber, the auxiliary extrusion assembly comprises an extrusion pipe 7 arranged on the locking plate 53, a feed chute 71 which is in butt joint with the extrusion pipe 7 and is positioned in the die plate 52, and the feed chute 71 is communicated with the extrusion flow channel 2. The coating material enters the feeding groove 71 from the extrusion pipe 7, and when extruding the rubber along with the extrusion flow channel 2, the coating is formed on the surface of the rubber, so that the practicability of the rubber is enhanced, and the coating has good appearance.

When using this embodiment, through set up exhaust block 4 in extruding runner 2 for the inner chamber position of exhaust block 4 periphery shaping rubber structure 1 is in negative pressure environment, avoids because the excessive expansion problem that the local position pressure imbalance that high temperature vulcanization blown and arouse leads to, and rubber demolding shaping stable in structure accords with the dimensional requirement of setting for.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Rubber spare negative pressure environment extrusion moulding mould structure, its characterized in that: the device comprises a forming die structure, a feeding pipe penetrating the forming die structure, an extrusion flow channel arranged in the forming die structure and communicated with the feeding pipe for extruding rubber, a forming groove arranged on the end face of the forming die structure and positioned at the periphery of the extrusion flow channel for forming the rubber structure, and an exhaust block embedded in the extrusion flow channel and positioned in the forming groove; the surface of the exhaust block is provided with a negative pressure hole which penetrates through the inside of the forming die structure and is communicated with the outside.

2. The rubber part negative pressure environment extrusion molding die structure of claim 1, characterized in that: the forming die structure comprises a fixing plate, a runner plate, a plurality of opening templates and a locking plate, wherein the fixing plate, the runner plate, the plurality of opening templates and the locking plate are arranged in a superposition mode according to the sequence.

3. The rubber part negative pressure environment extrusion molding die structure of claim 2, characterized in that: the inside of locking plate is equipped with the shaping groove, and the surface of locking plate is equipped with the aspirating hole of intercommunication negative pressure hole.

4. The rubber part negative pressure environment extrusion molding die structure of claim 1, characterized in that: the periphery of the exhaust block is surrounded by the extrusion flow channel.

5. The rubber part negative pressure environment extrusion molding die structure of claim 2, characterized in that: the rubber part negative pressure environment extrusion molding mould structure is still including locating the supplementary subassembly of extruding that the forming die is structural to be used for with the rubber co-extrusion molding coating, supplementary subassembly of extruding including installing the extrusion pipe on the locking plate, with extrude the feed chute that the pipe butt joint just is located the oral siphon board, feed chute and extrusion flow channel intercommunication.