CN212266392U

CN212266392U - BPS piston rubber mold

Info

Publication number: CN212266392U
Application number: CN202020747394.8U
Authority: CN
Inventors: 郝永波; 邓振宇; 王明明; 刘宏彬; 韩庆超; 杨克军; 周朝强; 计长红; 金宇
Original assignee: Harbin Limin Rubber Co ltd
Current assignee: Harbin Limin Rubber Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-01-01
Anticipated expiration: 2030-05-08

Abstract

A BPS piston rubber mold relates to a mold. The mould, mould and mould lower mould are the ring body structure and stack the setting from top to bottom in the mould, mould outer wall has last mould jump ring groove on the mould, it is protruding that the annular notes material is gone up to the lower surface, mould outer wall has well jump ring groove in the mould, the upper surface has and annotates the protruding assorted annular mould material room of material with the annular, lower surface inner edge department has the standing groove, standing groove top surface has die cavity and a plurality of notes material hole on the mould, annotate the material hole and communicate with mould material room and establish the die cavity outside on the mould, the inner edge department of mould lower mould upper surface has and standing groove assorted epirelief, the inner edge department of epirelief upper surface is equipped with die cavity down, mould lower mould lateral wall has lower mould jump ring groove, the mould core inserts in the mould lower mould and there is ejecting. The utility model discloses guaranteed that the sizing material is full of the die cavity, taken place product lip when having avoided the product demolding and torn, production waste product, product quality unstability scheduling problem, realized preparation BPS piston purpose.

Description

BPS piston rubber mold

Technical Field

The utility model relates to a mould, especially a BPS piston rubber mold.

Background

The BPS piston product is vulcanized by rubber and a framework, and rubber without elasticity is vulcanized into a rubber body with certain elasticity and strength by vulcanization equipment under certain temperature, pressure and time in the vulcanization process. In this process, the rubber mold is a key tool for meeting the size and shape requirements of the product, and the design of the rubber vulcanization mold is particularly important for the purpose.

The existing rubber mold design has the problems that a rubber material is not full of a cavity, and rubber parts such as product lips and the like are torn when a product is demoulded, so that production waste products, unstable product quality and the like are caused.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the background art, the utility model provides a BPS piston rubber mold.

The purpose is achieved, the utility model adopts the following technical proposal: a BPS piston rubber mould comprises an upper mould, a middle mould, a lower mould and a mould core; the upper die, the middle die and the lower die are all in ring body structures and are stacked up and down, the outer side wall of the upper die is provided with an upper die clamp spring groove, the lower surface of the upper die is provided with an annular material injection bulge, the outer side wall of the middle die of the die is provided with a middle die clamp spring groove, the upper surface of the middle die of the die is provided with an annular die material chamber matched with the annular material injection bulge, the inner edge of the lower surface of the middle die of the die is provided with a placing groove, the top surface of the placing groove is provided with an upper die cavity and a plurality of material injection holes, the material injection holes are communicated with the die material chamber and are arranged on the outer side of the upper die cavity, the interior edge department of mould lower mould upper surface is equipped with standing groove assorted last arch, the interior edge department of last arch upper surface is equipped with mould lower die cavity, and the lateral wall of mould lower mould is equipped with lower mould jump ring groove along its circumference, the mould core inserts closely in the mould lower mould and the upper end is equipped with the ejecting arch of product.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses have vulcanized rubber's function, guaranteed that the sizing material is full of the die cavity, take place the tearing problem of product lip when having avoided the product demolding, avoided production waste product, product quality unstability scheduling problem, realized preparation BPS piston purpose.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of the upper mold of the mold;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a schematic view of the structure of a mold in the mold;

FIG. 5 is a bottom view of FIG. 4;

FIG. 6 is an enlarged view at A of FIG. 5;

FIG. 7 is a schematic structural view of a lower mold of the mold;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is an enlarged view at B of FIG. 7;

FIG. 10 is a schematic view of the construction of the mold core;

fig. 11 is a top view of fig. 10.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 11, the utility model discloses a BPS piston rubber mold, which comprises an upper mold 1, a middle mold 2, a lower mold 3 and a core 4; the upper die 1, the middle die 2 and the lower die 3 are all in ring body structures and are arranged in an up-and-down stacking manner, the outer side wall of the upper die 1 is provided with an upper die clamp spring groove 1-2 along the circumferential direction, and the upper die clamp spring groove 1-2 can bear a clamp spring to ensure that the upper die 1 is connected with equipment; the lower surface of the upper die 1 of the die is provided with an annular material injection bulge 1-1, and the annular material injection bulge 1-1 plays a role of a plug and transfers the rubber material downwards; the outer side wall of the middle die 2 in the die is provided with a middle die clamp spring groove 2-2 along the circumferential direction, and the middle die clamp spring groove 2-2 can be used for bearing a clamp spring to ensure that the middle die 2 in the die is connected with equipment; the upper surface of the middle die 2 in the die is provided with an annular die material chamber 2-1 matched with the annular material injection bulge 1-1, the annular die material chamber 2-1 plays a role of containing sizing materials, the inner edge of the lower surface of the middle die 2 in the die is provided with a placing groove 2-5, the top surface of the placing groove 2-5 is provided with an upper die cavity 2-4 and a plurality of (six) material injection holes 2-3, the upper die cavity 2-4 is arranged to prevent the rubber lip from being torn, the plurality of (six) material injection holes 2-3 are communicated with the material chamber 2-1 of the mold and are arranged at the outer side of the upper cavity 2-4 of the mold, the material injection holes 2-3 are flow channels for rubber materials, and rubber is injected under the action of the annular material injection bulge 1-1 and is led to the upper cavity 2-4 of the mold and the lower cavity 3-1 of the lower mold 3 of the mold through the material injection holes 2-3; an upper bulge 3-3 matched with the placing groove 2-5 is arranged at the inner edge of the upper surface of the lower die 3 of the die, a lower die cavity 3-1 is arranged at the inner edge of the upper surface of the upper bulge 3-3, and the lower die cavity 3-1 and an upper die cavity 2-4 are combined to form a rubber part of a product; the outer side wall of the lower die 3 of the die is provided with a lower die clamp spring groove 3-2 along the circumferential direction, and the lower die clamp spring groove 3-2 can be used for bearing a clamp spring to ensure that the lower die 3 of the die is connected with equipment; the mold core 4 is tightly inserted into the lower mold 3 of the mold, the upper end of the mold core is provided with a product ejection bulge 4-1, and the product ejection bulge 4-1 is used for dragging the product when the product is demoulded, so that the product is guaranteed to be demoulded smoothly without deformation.

The second embodiment is as follows: as shown in fig. 2, this embodiment is further described as a first embodiment, and the annular injection protrusion 1-1 is disposed in the middle of the lower surface of the upper die 1 of the die.

The third concrete implementation mode: as shown in fig. 5, this embodiment is a further description of the second embodiment, and the plurality (six) of injection holes 2-3 are uniformly distributed along the circumferential direction of the mold 2 in the mold.

The utility model discloses application method and principle:

the utility model discloses do benefit to 4RT curing press or cold runner injection machine and vulcanize, specifically do: the pre-formed AEM or ACM rubber is uniformly distributed in the annular die material chamber 2-1 along the periphery, which is beneficial to providing vulcanization parameters for a flat vulcanizing machine, wherein the general temperature is selected to be 170-180 ℃, the vulcanization pressure is 5-10MPa, and the vulcanization time is 300-360S, so that vulcanization molding is carried out, and the rubber molding of a product is completed.

The shrinkage rates of the upper die cavity 2-4 and the lower die cavity 3-1 of the die are 2-3%, and the size requirement of the product is met.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A BPS piston rubber mold which is characterized in that: comprises an upper die (1), a middle die (2), a lower die (3) and a die core (4); the die is characterized in that the die upper die (1), the die middle die (2) and the die lower die (3) are of ring-shaped structures and are stacked up and down, an upper clamp spring groove (1-2) is formed in the outer side wall of the die upper die (1), an annular injection bulge (1-1) is formed in the lower surface of the die upper die (1), a middle clamp spring groove (2-2) is formed in the outer side wall of the die middle die (2), an annular die material chamber (2-1) matched with the annular injection bulge (1-1) is formed in the upper surface of the die middle die (2), a placing groove (2-5) is formed in the inner edge of the lower surface of the die middle die (2), an upper die cavity (2-4) and a plurality of injection holes (2-3) are formed in the groove top surface of the placing groove (2-5), and the plurality of injection holes (2-3) and the die material chamber (2-1) are communicated with each other and are formed in The side, the interior edge department of mould lower mould (3) upper surface is equipped with standing groove (2-5) assorted and goes up arch (3-3), the interior edge department of going up arch (3-3) upper surface is equipped with mould lower cavity (3-1), and the lateral wall of mould lower mould (3) is equipped with lower mould jump ring groove (3-2), mould core (4) closely insert in mould lower mould (3) and the upper end is equipped with ejecting arch (4-1) of product.

2. The BPS piston rubber mold according to claim 1, wherein: the annular material injection bulge (1-1) is arranged in the middle of the lower surface of the upper die (1) of the die.

3. The BPS piston rubber mold according to claim 2, wherein: the plurality of material injection holes (2-3) are uniformly distributed along the circumferential direction of the middle die (2) in the die.