CN214872330U

CN214872330U - Prevent mould of sealing device wearing and tearing

Info

Publication number: CN214872330U
Application number: CN202121005033.7U
Authority: CN
Inventors: 蔡达伟
Original assignee: Guangzhou Bosen Plastic Products Co ltd
Current assignee: Guangzhou Bosen Plastic Products Co ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2021-11-26
Anticipated expiration: 2031-05-11

Abstract

The utility model relates to a mould manufacturing field especially relates to a prevent mould of sealing device wearing and tearing, the utility model discloses an all set up a seal groove in the horizontal plane of front mould benevolence and front mould frame contact position and in the horizontal plane of back mould benevolence and back mould frame contact position, be provided with a sealing device in the seal groove, optimize the side seal that traditional mould selected for use to horizontal seal, make sealing device can not take place the contact with front mould frame and back mould frame when drawing a pattern and compound die, avoid producing the friction and then influence the sealing device life-span with front mould frame and back mould frame to solve the most side seals that adopt of present traditional mould, the in-process sealing device who has drawing a pattern and compound die easily takes place the friction with mould frame and mould benevolence, produce wearing and tearing, influence the defect of the sealed effect of sealing device's life-span and mould, be fit for injection-moulded and use.

Description

Prevent mould of sealing device wearing and tearing

Technical Field

The utility model relates to a mould field of making especially relates to a prevent mould of sealing device wearing and tearing.

Background

The injection molding of a mold is also called injection molding, and is a molding method combining injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like. The technology of present injection moulding is comparatively ripe, but the mould that uses still has the easy problem of wearing and tearing of sealing device at present, and at the mould in-process of moulding plastics, mould benevolence side edge is located mostly to the sealing device of current mould, adopts the side seal, and the in-process sealing device of drawing a pattern and compound die rubs with die carrier and mould benevolence emergence easily, produces wearing and tearing, influences sealing device's life-span and the sealed effect of mould.

SUMMERY OF THE UTILITY MODEL

The utility model aims to remedy prior art's defect, provide a prevent mould of sealing device wearing and tearing to solve present traditional mould and adopt the side seal mostly, there is the in-process sealing device of drawing a pattern and compound die to rub easily with front mould benevolence and back mould benevolence emergence, produce wearing and tearing, influence sealing device's life-span and the defect of the sealed effect of mould.

Specifically, the technical scheme of the utility model is that:

a mould for preventing the abrasion of a sealing device comprises a front mould and a rear mould; the front mould comprises a front mould frame, a front mould frame top plate and a positioning guide sleeve arranged in the front mould frame, the rear mould comprises a rear mould frame, a rear mould frame base and a positioning guide pillar arranged on the rear mould frame, the front mould frame top plate is provided with a feed inlet, the front mould and the rear mould are connected with the positioning guide sleeve through the positioning guide pillar, and the rear mould frame base is provided with a demoulding mechanism; the front die frame and the rear die frame respectively comprise a front die core and a rear die core, the front die core and the rear die core surround to form a molding cavity, a sealing groove is formed in the horizontal plane of the contact position of the front die core and the front die frame and the horizontal plane of the contact position of the rear die core and the rear die frame, a sealing device is arranged in the sealing groove, most of the sealing devices of the existing die are arranged on the side wall of the vertical surface of the contact position of the front die core and the front die frame and the side wall of the vertical surface of the contact position of the rear die core and the rear die frame, and the sealing devices can be subjected to stress and shear stress in the horizontal direction due to extrusion among the die frame, the die core and the sealing devices in the die drawing and die assembly processes, so that the abrasion and deformation of the sealing devices can be caused, and the service life of the sealing devices can be influenced; after the sealing mode is optimized to horizontal sealing through side sealing, the sealing device only can be stressed in the vertical direction, abrasion can be reduced, deformation is not prone to occurring, and the sealing device is prevented from being rapidly reduced due to abrasion in the machining process.

Furthermore, the sealing device is a U-shaped ring and is used for reducing friction and abrasion and prolonging the service life.

Furthermore, the demolding mechanism is a thimble, a thimble fixing plate is arranged between the thimble and the rear die carrier base, and the ejector pin can be adjusted to eject the molded product out of the molding cavity to realize demolding.

Furthermore, a plurality of auxiliary feed inlets are formed in the top plate of the front die frame, so that the feeding speed can be increased, and the product processing speed is increased.

Furthermore, a plurality of fixed blocks are inlaid in the front die frame and the rear die frame, and the fixed blocks are used for limiting the front die frame and the rear die frame and preventing the front die frame and the rear die frame from shaking to influence the product quality.

Furthermore, a mold temperature adjusting pipeline is arranged on the side wall of the front mold base and used for adding cooling water or warm water to adjust the temperature inside the mold.

The utility model has the advantages that the utility model discloses a front mould benevolence with in the horizontal plane of front mould frame contact position reach a seal groove has all been seted up in the back mould benevolence with in the horizontal plane of back mould frame contact position, sets up sealing device in the seal groove. Most of sealing devices of the existing mold are arranged on the side wall of the vertical surface of the contact position of a front mold core and a front mold base and the side wall of the vertical surface of the contact position of a rear mold core and a rear mold base, and the sealing devices can be subjected to stress and shear stress in the horizontal direction due to extrusion between the mold bases and the mold cores and the sealing devices in the stripping and die assembly processes, so that the abrasion and deformation of the sealing devices can be caused, and the service life of the sealing devices is influenced. After the sealing mode is optimized to horizontal sealing by side sealing, the sealing device only can receive the stress action in the vertical direction, can reduce wear and tear, also be difficult for taking place to warp, prevent that sealing device from leading to life to descend rapidly because of wearing and tearing in the course of working to solve present traditional mould and adopt side sealing mostly, there is the in-process sealing device of drawing a pattern and compound die to take place the friction with die carrier and mould benevolence easily, produce wearing and tearing, influence sealing device's life-span and the defect of the sealed effect of mould.

Drawings

Fig. 1 is a schematic view of a mold for preventing a sealing device from being worn according to a first embodiment.

Fig. 2 is a top view of the mold for preventing the abrasion of the sealing device according to the first embodiment.

Fig. 3 is a sectional view of the mold for preventing the abrasion of the sealing device according to the first embodiment taken along the direction a-a.

Fig. 4 is a schematic view of a front mold core according to a first embodiment.

Fig. 5 is a schematic structural diagram of a front mold core according to a first embodiment.

FIG. 6 is a cross-sectional view of the front core along the direction B-B according to the first embodiment.

Fig. 7 is a top view of the front mold frame according to the first embodiment.

In the figure: 1. the mould comprises a front mould frame top plate, 2 parts of a front mould frame, 3 parts of a feeding hole, 4 parts of a rear mould frame, 5 parts of a rear mould frame base, 6 parts of a positioning guide sleeve, 7 parts of a positioning guide pillar, 8 parts of an ejector pin, 9 parts of a front mould core, 10 parts of a rear mould core, 11 parts of a sealing groove, 12 parts of an ejector pin fixing plate, 13 parts of an auxiliary feeding hole, 14 parts of a fixing block and 15 parts of a mould temperature adjusting pipeline.

Detailed Description

The embodiments described below are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, the present embodiment provides a mold for preventing a sealing device from being worn, which includes a front mold and a rear mold; the front mould comprises a front mould frame 2, a front mould frame top plate 1 and a positioning guide sleeve 6 arranged in the front mould frame 2, the rear mould comprises a rear mould frame 4, a rear mould frame base 5 and a positioning guide post 7 arranged on the rear mould frame 4, the front mould frame top plate 1 is provided with a feed inlet 3, the front mould and the rear mould are connected with the positioning guide sleeve 6 through the positioning guide post 7, and the rear mould frame base 5 is provided with a demoulding mechanism. Referring to fig. 4, 5, 6 and 7, the front mold frame 2 and the rear mold frame 4 respectively include a front mold core 9 and a rear mold core 10 therein, the front mold core 9 and the rear mold core 10 surround to form a molding cavity, a sealing groove is formed in a horizontal plane of a contact position of the front mold core 9 and the front mold frame 2 and a horizontal plane of a contact position of the rear mold core 10 and the rear mold frame 4, and a sealing device is disposed in the sealing groove 11.

In this embodiment, when the mold for preventing the abrasion of the sealing device works, an operator closes the front mold and the rear mold, and adds raw materials from the feed port 3 and the auxiliary feed port 13, the raw materials enter a molding cavity formed by the front mold core 9 and the rear mold core 10 in a surrounding manner to be cooled and molded, then the operator lifts the front mold and the rear mold, separates the front mold from the rear mold, and ejects a cooled and molded product from the molding cavity through the demolding mechanism to complete processing; most of the existing dies are provided with sealing devices for sealing at the side edges, the sealing devices are arranged on the vertical side wall of the contact position of a front die core and a front die frame and the vertical side wall of the contact position of a rear die core and a rear die frame, and the sealing devices can be stressed and shear stress in the horizontal direction due to extrusion between the die frame and the die core and between the die frame and the sealing devices in the stripping and die assembly processes, so that the abrasion and deformation of the sealing devices can be caused, and the service life of the sealing devices is influenced. The liquid leakage is prevented in a side sealing mode, but the friction between the sealing device at the side edge and the die core and the die carrier is easily caused by the operations of die closing and die stripping in the die processing process, so that the service life of the sealing device is reduced, therefore, in the embodiment, a sealing groove is formed in the horizontal plane of the contact position of the front die core 9 and the front die carrier 2 and the horizontal plane of the contact position of the rear die core 10 and the rear die carrier 4, the sealing device is arranged in the sealing groove 11, after the sealing mode is optimized from side sealing to horizontal sealing, the sealing device only can be stressed in the vertical direction, the abrasion can be reduced, the deformation is not easy to occur, the service life of the sealing device is prevented from being rapidly reduced due to abrasion in the processing process, the service life of the sealing device is about four times that of a traditional die, and the cost required by replacing the sealing device is greatly reduced.

Preferably, the sealing device is a U-shaped ring, the single surface of the U-shaped ring is flat, and the other surface of the U-shaped ring is an elliptical protrusion, so that friction and abrasion can be reduced, and the service life can be prolonged. The demolding mechanism is a thimble 8, a thimble fixing plate 12 is arranged between the thimble 8 and the rear die carrier base 5, and the demolding can be realized by ejecting a molded product from the molding cavity by adjusting the position of the thimble 8. A plurality of fixing blocks 14 are embedded in the front die carrier 2 and the rear die carrier 4, and the fixing blocks 14 are used for limiting the front die carrier 2 and the rear die carrier 4 and preventing the fixing blocks from shaking to influence the product quality. And a mold temperature adjusting pipeline 15 is arranged on the side wall of the front mold frame 2 and used for adding cooling water or warm water to adjust the temperature inside the mold.

The utility model discloses a front mould benevolence with reach in the horizontal plane of front mould frame contact position back mould benevolence with a seal groove has all been seted up in the horizontal plane of back mould frame contact position, set up sealing device in the seal groove, the side seal optimization that selects for use with traditional mould is horizontal seal, make sealing device can not take place the contact with front mould frame and back mould frame when drawing a pattern and compound die, avoid producing the friction and then influence the sealing device life-span with front mould frame and back mould frame, it is sealed to solve the most adoption sides of present traditional mould, the in-process sealing device who has drawing a pattern and compound die easily takes place the friction with front mould benevolence and back mould benevolence, produce wearing and tearing, influence sealing device's life-span and the defect of the sealed effect of mould, be fit for injection-moulded and use.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. A mould for preventing a sealing device from being worn comprises a front mould and a rear mould, wherein the front mould comprises a front mould frame, a front mould frame top plate and a positioning guide sleeve arranged in the front mould frame, and the rear mould comprises a rear mould frame, a rear mould frame base and a positioning guide pillar arranged on the rear mould frame; the device is characterized in that a feed inlet is formed in a top plate of the front die frame, the front die and the rear die are connected with the positioning guide sleeve through the positioning guide pillar, and a demolding mechanism is arranged on a base of the rear die frame; the front mould frame and contain a front mould benevolence and a back mould benevolence in the back mould frame respectively, front mould benevolence with back mould benevolence surrounds and forms a die cavity, front mould benevolence with in the horizontal plane of front mould frame contact position and back mould benevolence with all seted up a seal groove in the horizontal plane of back mould frame contact position, be provided with a sealing device in the seal groove for realize horizontal seal.

2. The mold for preventing the sealing device from being abraded as recited in claim 1, wherein the sealing device is a U-shaped ring.

3. The mold of claim 1, wherein the demolding mechanism is a thimble, and a thimble-fixing plate is disposed between the thimble and the base of the rear mold frame.

4. The mold for preventing the sealing device from being abraded as claimed in claim 1, wherein a plurality of auxiliary feed inlets are formed in a top plate of the front mold frame.

5. The mold for preventing the sealing device from being worn as claimed in claim 1, wherein a plurality of fixing blocks are embedded in the front mold frame and the rear mold frame.

6. The mold for preventing the sealing device from being abraded as claimed in claim 1, wherein a mold temperature adjusting pipeline is arranged on the side wall of the front mold frame.