CN211591001U

CN211591001U - Seal ring gas cap mould

Info

Publication number: CN211591001U
Application number: CN201921965933.9U
Authority: CN
Inventors: 余兵浩; 张亮; 冯越; 张萌; 周庆庆
Original assignee: Qidong Jinqiao Bearing Co ltd
Current assignee: Qidong Jinqiao Bearing Co ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-09-29
Anticipated expiration: 2029-11-14

Abstract

The utility model discloses a sealing washer gas cap mould, include: the sealing ring lower die core and the sealing ring upper die core are pressed on the upper part of the sealing ring lower die core, and a forming cavity is reserved between the sealing ring upper die core and the sealing ring lower die core for forming a sealing ring product; it is characterized in that; the outer edge of the sealing ring lower die core is provided with at least one circle of annular exhaust grooves, and the inner ring of the sealing ring lower die core is provided with at least one air inlet. The utility model provides high sealing washer production efficiency, reduce sealing washer manufacturing cost, stop the potential safety hazard of scald the utility model relates to a rationally, the mould is longe-lived, and production efficiency is fast.

Description

Seal ring gas cap mould

Technical Field

The utility model relates to a sealing washer mould technical field specifically is a sealing washer gas cap mould.

Background

The existing sealing ring production process has low automation degree of a vulcanization process. After the vulcanizing operation of the sealing ring is finished under high temperature and high pressure, the sealing ring is stuck to a mold, so that the sealing ring is not suitable for taking a part.

The vulcanizing worker can take out the sealing piece from the die cavity by using a method of manually taking the piece and matching with an air gun for blowing and cooling. The sealing ring is soft in quality, thin in wall and small in size, the sealing ring is easily torn by the method, the framework is folded, and the sealing ring is scrapped, and potential safety hazards of scalding workers exist. The time spent on taking the sealing ring is long, so that the production efficiency is low, and the production cost of the sealing ring is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects of the prior art, the utility model aims to provide a novel sealing washer gas cap mould. Specifically, the sealing ring is ejected out by the gas cap more easily in a deep and closed vacuum state through the gas cap of the sealing ring, so that smooth demolding of the sealing ring product is realized.

In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

a seal ring gas cap mold, comprising:

the sealing ring lower die core and the sealing ring upper die core are pressed on the upper part of the sealing ring lower die core, and a forming cavity is reserved between the sealing ring upper die core and the sealing ring lower die core for forming a sealing ring product; wherein;

the outer edge of the sealing ring lower die core is provided with at least one circle of annular exhaust grooves, and the inner ring of the sealing ring lower die core is provided with at least one air inlet.

In a preferred embodiment of the present invention, the molding cavity is located at the head and the tail of the sealing ring product, and the first glue overflow groove and the second glue overflow groove are respectively formed in the molding cavity, so that the excess rubber can overflow along with the first glue overflow groove and the second glue overflow groove, thereby avoiding the thickness of the sealing ring product from being out of tolerance and causing flash.

In the utility model discloses a preferred embodiment, the middle part of sealing washer lower mould core with the middle part of mould core adopts mutual concave-convex structure cooperation on the sealing washer the middle part of sealing washer lower mould core with seted up on the sealing washer on the mould core the middle part complex fitting surface first overflow and glue the groove.

In a preferred embodiment of the present invention, the first glue overflow groove is of an annular structure.

In a preferred embodiment of the present invention, an inclined plane is disposed on the mold core on the sealing ring, the inclined plane is located between the molding cavity and the annular exhaust groove, and the second glue overflow groove is located below the inclined plane.

In a preferred embodiment of the present invention, the second glue overflow groove is of an annular structure.

In a preferred embodiment of the present invention, an O-ring groove is formed at the bottom of the outer periphery of the lower mold core for mounting an O-ring therein, so that the lower mold core is assembled with the lower mold core fixing mold plate to form a sealing structure.

The beneficial effects of the utility model reside in that:

improve sealing washer production efficiency, reduce sealing washer manufacturing cost, stop the potential safety hazard of scald the utility model relates to a rationally, the mould is longe-lived, and production efficiency is fast.

Drawings

Fig. 1 is a schematic structural view (sectional view) of the present invention.

Fig. 2 is a schematic view of the sealing ring product of the present invention.

Fig. 3 is a schematic structural diagram (top view) of the present invention.

Detailed Description

The structure and the working principle of the present invention are further explained by the following specific embodiments:

the seal ring gas cap mold 100 shown in fig. 1 and 3 includes a seal ring lower mold core 110 and a seal ring upper mold core 120 pressing on an upper portion of the seal ring lower mold core 110, and a molding cavity 130 is left between the seal ring upper mold core 120 and the seal ring lower mold core 110 for molding a seal ring product 140.

The outer edge 111 of the lower mold core 110 is provided with a plurality of annular exhaust grooves 150. The material of the lower mold core 110 is preferably a heat-resistant and pressure-resistant material having a moderate thickness, so that compressed air is uniformly discharged through the annular exhaust groove 150 after the mold is removed.

Meanwhile, 8 air inlets 160 are formed in the inner ring 112 of the sealing ring lower mold core 110; the 8 air inlet holes 160 are formed along the inner ring 112 at intervals. The number of the air inlet holes 160 is not suitable for being too large, and too large can reduce the air pressure of compressed air, so that the ejection force is reduced, and the demoulding is not smooth. The quantity is too small to meet the requirement of gas quantity.

The arrangement distance of the 8 air inlets 160 and the position in the inner ring of the sealing ring lower mold core 110 are proper, improper selection of the arrangement distance and the position can cause unsmooth ejection, and the sealing ring product 140 is adhered to the sealing ring lower mold core 110, so that the applicant designs that the 8 air inlets 160 are annularly arranged on the inner ring 112 of the sealing ring lower mold core 110 at intervals, and as found through a large number of experimental studies, the sealing ring 140 can be ejected smoothly by the positions and the number.

Specifically, after vulcanization, compressed air enters through the air inlet holes 160 and exits through the annular exhaust channel 150, forming an air cushion between the seal ring lower mold core 110 and the seal ring product 140.

During demolding, compressed air enters the inner cavity 130 from the air inlet 160 and is discharged through the annular exhaust groove 150, so that a gap is formed between the molding surface of the molding cavity 130 (the sealing ring product 140 and the sealing ring lower mold core 110), and an air cushion is formed between the sealing ring 140 and the sealing ring lower mold core 110 through the gap, so that the sealing ring 120 is smoothly ejected away from the mold core by the compressed air within a preset time.

The molding cavity 130 is provided with a glue overflow groove 171 and a glue overflow groove 172 at the head and tail of the sealing ring product 140. The glue overflow groove 171 and the glue overflow groove 172 are both ring-shaped structures. Specifically, the middle of the lower sealing ring mold core 110 and the middle of the upper sealing ring mold core 120 are matched in a mutual concave-convex structure, for example, a protrusion 113 is arranged in the middle of the lower sealing ring mold core 110, a groove 121 is arranged in the middle of the upper sealing ring mold core 120, and the protrusion 113 and the groove 121 are in positioning fit, so that the lower sealing ring mold core 110 and the upper sealing ring mold core 120 are in positioning fit. The glue overflow groove 171 is provided on the mating surface 114 where the middle portion of the sealing ring lower mold core 110 mates with the middle portion of the sealing ring upper mold core 120.

The upper mold core 120 of the sealing ring is provided with an inclined surface 120a, the inclined surface 120a is located between the molding cavity 130 and the annular exhaust groove 150, and the glue overflow groove 172 is located below the inclined surface 120 a.

The provision of the glue overflow groove 171 and the glue overflow groove 172 enables excess rubber to overflow along with the glue overflow groove 171 and the glue overflow groove 172, thereby avoiding the product thickness from being out of tolerance and causing flash.

An O-ring annular groove 180 is formed in the outer bottom 114 of the sealing ring lower mold core 110, and an O-ring is installed in the O-ring annular groove 180, so that the sealing ring lower mold core 110 is assembled with a sealing ring lower mold core fixing mold plate (not shown) to form a sealing structure.

Owing to possess above-mentioned structure, the utility model discloses a theory of operation lies in:

and when the vulcanization forming of the sealing ring 140 is finished, the vulcanizing machine moves the mold and opens the mold.

The upper and lower mold plates (not shown) respectively drive the upper seal ring mold core 120 and the lower seal ring mold core 110 to separate.

When the sealing ring upper mold core 120 and the sealing ring lower mold core 110 are separated to a certain distance; the compressed air is blown out through the air inlet 160 of the sealing ring lower mold core 110 to generate a gap between the sealing ring 140 and the sealing ring product 140 and the sealing ring lower mold core 110, and further the gap is filled up to form an air cushion, so that the sealing ring 140 is ejected out. While compressed air is uniformly discharged from the annular discharge groove 150.

The utility model has the advantages that:

the non-rigid demoulding mode of the pneumatic ejection sealing element is adopted, so that the defect that the rigid ejection demoulding is easy to generate scars is effectively avoided. The application of the gas cap eliminates the trouble of the die in the design and manufacturing process of the thimble.

Claims

1. A seal ring gas cap mold, comprising:

the sealing ring lower die core and the sealing ring upper die core are pressed on the upper part of the sealing ring lower die core, and a forming cavity is reserved between the sealing ring upper die core and the sealing ring lower die core for forming a sealing ring product; it is characterized in that;

2. The seal ring airlock mold as defined in claim 1, wherein a first glue overflow groove and a second glue overflow groove are respectively formed in the molding cavity at the head and tail of the seal ring product.

3. The seal ring gas cap mold according to claim 2, wherein the middle part of the seal ring lower mold core and the middle part of the seal ring upper mold core are matched by a mutual concave-convex structure, and the matching surface of the middle part of the seal ring lower mold core and the middle part of the seal ring upper mold core is provided with the first glue overflow groove.

4. The seal ring airlock mold of claim 3, wherein the first flash groove is of annular configuration.

5. The seal ring airlock mold as defined in claim 2, wherein said seal ring upper mold core has a bevel disposed therebetween, said second glue-overflowing groove being disposed below said bevel.

6. The seal ring airlock mold of claim 5, wherein said second flash groove is of annular configuration.

7. The seal ring gas cap mold according to any one of claims 1 to 6, wherein an O-ring annular groove is provided at a bottom portion of an outer periphery of the seal ring lower mold core, and an O-ring is fitted in the O-ring annular groove, so that the seal ring lower mold core is assembled with the seal ring lower mold core fixing die plate to form a sealing structure.