CN219114614U

CN219114614U - Mould of cladding insulator composite layer

Info

Publication number: CN219114614U
Application number: CN202320010336.0U
Authority: CN
Inventors: 赵希文; 蒲峰; 牛志森; 刘捷; 孙晶
Original assignee: Shengshi Tianyi Zibo New Material Technology Co ltd; Shandong Zibo Electric Porcelain Factory Co ltd
Current assignee: Shengshi Tianyi Zibo New Material Technology Co ltd; Shandong Zibo Electric Porcelain Factory Co ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-02
Anticipated expiration: 2033-01-04

Abstract

The utility model belongs to the technical field of special equipment for manufacturing insulators, and particularly relates to a die for coating an insulator composite layer, which is characterized in that: the lower die comprises an inner die and an outer die sleeved on the inner die, a cladding cavity is formed between the outer die and the inner die, or the outer die, the inner die and the upper die jointly form the cladding cavity, the outer die comprises a first outer die and a second outer die which are symmetrically arranged, the outer die is provided with a glue injection hole, and the glue injection hole is communicated with the cladding cavity; the upper die is internally provided with a steel cap positioning cavity, the steel cap positioning cavity is provided with a bayonet communicated with the coating cavity, the bayonet is positioned on the bottom wall of the upper die, the inner die is internally provided with a steel foot positioning cavity, the steel foot positioning cavity is provided with a socket communicated with the coating cavity, the socket is arranged on the top wall of the inner die, and the steel cap positioning cavity and the steel foot positioning cavity are coaxially arranged; an upper die cavity is formed in the bottom of the upper die, and the outer die can be inserted into the upper die cavity. The utility model can improve the integrity of the mould and reduce the position deviation of the mould in the glue injection process.

Description

Mould of cladding insulator composite layer

Technical Field

The utility model belongs to the technical field of special equipment for manufacturing insulators, and particularly relates to a die for coating an insulator composite layer.

Background

An insulator is a special insulating control, and is usually installed between conductors with different electric potentials or between a conductor and a grounding member to play roles of electric insulation and mechanical fixation. The insulators are generally classified into disc-shaped suspension insulators and column insulators according to the installation manner thereof, wherein the disc-shaped suspension insulators are used in the majority. The disc-shaped suspension insulator generally adopts a porcelain insulator, dust is easy to deposit on the porcelain insulator, and the deposited dust is easy to cause flashover in humid environments such as rainwater, dew and the like, so that the insulating performance of the insulator is affected.

Therefore, chinese patent application 201910383341.4 discloses a new-structured composite disc-shaped insulator and a method for manufacturing the same, in which a silicone rubber umbrella skirt is formed on a working portion of an insulating core at one time, and the advantages of high insulating strength, hydrophobicity and hydrophobic migration of the silicone rubber are utilized to improve the anti-fouling capability of the insulator, but the silicone rubber umbrella skirt is easy to deform under the action of external force, and even one umbrella skirt is caused to touch an adjacent umbrella skirt when the insulator has more than two umbrella skirts, so that the expectation of theoretically increasing creepage distance cannot be reached, and the insulator still stays on the ceramic umbrella skirt.

Chinese patent 202022192934.3 discloses a disk-shaped double-skirt porcelain composite insulator, which is characterized in that an upper sheath and a lower sheath made of fluorosilicone rubber are respectively coated on an upper umbrella skirt and a lower umbrella skirt, an upper bonding sealing layer is arranged at the joint of the upper sheath and a steel cap, a lower bonding sealing layer is arranged at the joint of the lower sheath and the lower end face of a porcelain body, and the upper sheath and the lower sheath are connected by an intermediate bonding sealing layer at the joint between the upper umbrella skirt and the lower umbrella skirt. The insulator realizes the comprehensive coating of the upper umbrella skirt and the lower umbrella skirt, but has low integrity, and the bonding sealing part is easy to lose efficacy under the outdoor natural condition, so that the upper sheath and the lower sheath fall off, and the protection time is short.

Therefore, developing a mold capable of integrally coating an insulator is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a die for coating an insulator composite layer, which can improve the integrity of the die and the coating quality.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a mould of cladding insulator composite layer, includes mould and lower mould, its characterized in that: the lower die comprises an inner die and an outer die sleeved on the inner die, a cladding cavity is formed between the outer die and the inner die, or the outer die, the inner die and the upper die jointly form the cladding cavity, the outer die comprises a first outer die and a second outer die which are symmetrically arranged, the outer die is provided with a glue injection hole, and the glue injection hole is communicated with the cladding cavity; the upper die is internally provided with a steel cap positioning cavity, the steel cap positioning cavity is provided with a bayonet communicated with the coating cavity, the bayonet is positioned on the bottom wall of the upper die, the inner die is internally provided with a steel foot positioning cavity, the steel foot positioning cavity is provided with a socket communicated with the coating cavity, the socket is arranged on the top wall of the inner die, and the steel cap positioning cavity and the steel foot positioning cavity are coaxially arranged; an upper die cavity is formed in the bottom of the upper die, and the outer die can be inserted into the upper die cavity.

Further, a first through hole communicated with the steel cap positioning cavity is formed in the upper die.

Further, an air vent groove is formed in the side wall of the steel cap positioning cavity, the lower end of the air vent groove is communicated with the cladding cavity, and the upper end of the air vent groove is communicated with the first through hole.

Further, the first through hole is communicated with the top wall of the upper die, and a first vertically downward ejection mechanism is arranged in the first through hole in a penetrating mode.

Further, a second through hole communicated with the steel foot positioning cavity is formed in the inner die.

Further, the second through hole is communicated with the bottom wall of the inner die, and a second ejection mechanism which is vertically upwards penetrates through the second through hole.

Further, the inner die is fixed on the moving platform, and the first outer die and the second outer die are respectively connected with the moving platform in a sliding manner.

Further, the first outer die and the second outer die are respectively connected with the moving platform in a sliding way through a linear guide rail, and a limiting mechanism is arranged on the linear guide rail.

Further, an outer die frame is arranged on the moving platform, the first outer die and the second outer die are located in the outer die frame, and the first outer die and the second outer die are connected to the inner wall of the outer die frame through linear guide rails respectively.

Further, the mobile platform is connected with a lifting device.

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

1. because the steel cap positioning cavity is arranged in the upper die, the steel cap positioning cavity is provided with a bayonet, the steel foot positioning cavity is arranged in the inner die, the steel foot positioning cavity is provided with a socket, and the steel cap positioning cavity and the steel foot positioning cavity are coaxially arranged, so that after the insulator is placed in the die, the steel cap positioning cavity and the steel foot positioning cavity can limit the insulator in the horizontal direction, and the insulator is prevented from horizontally displacing in the glue injection process. Because the lower mould includes centre form and the external mold of suit on the centre form, go up the mould cavity has been seted up to the mould bottom, and the external mold can insert and establish in the mould cavity for go up the mould and wrap up whole lower mould wherein, improved the wholeness of mould, can avoid each part to take place the displacement in the injection molding process, thereby improve the stability of full skirt cladding process.

2. Because the top of the steel cap positioning cavity is communicated with the first through hole, the side wall of the steel cap positioning cavity is provided with the ventilation groove, and the bottom of the ventilation groove is communicated with the cladding cavity, so that air generated in the cladding cavity in the injection molding process can be discharged through the ventilation groove, the steel cap positioning cavity and the first through hole; the bottom of same steel foot positioning chamber communicates the second through-hole, and the air of cladding chamber lower part can be discharged through steel foot positioning chamber, second through-hole to can guarantee that silicone rubber flows completely in the cladding intracavity, the complete cladding umbrella skirt surface improves cladding quality.

3. Because the top of the steel cap positioning cavity and the bottom of the steel foot positioning cavity are respectively provided with the vertical ejection mechanisms, the ejection mechanisms can apply assistance to the insulator during demolding, so that demolding is easier, and damage of a coating layer or damage of a ceramic umbrella skirt can be avoided.

4. Because the moving platform is arranged below the lower die, the first outer die and the second outer die are respectively connected with the moving platform in a sliding way, so that the first outer die and the second outer die can move more smoothly, and damage to an insulator in the die assembly or die stripping process is avoided.

5. Because the first outer die and the second outer die are respectively connected with the moving platform in a sliding way through the linear guide rail, the linear guide rail is provided with a limiting mechanism, the limiting mechanism can limit the moving distance of the first outer die and the second outer die, the outer die and the inner die after die assembly are ensured to be coaxial, and the umbrella skirt of the insulator is coaxial with the cladding cavity, so that collision damage of the outer die to the umbrella skirt can be avoided.

6. Because the movable platform is provided with the outer die frame, the first outer die and the second outer die are positioned in the outer die frame, the first outer die and the second outer die are respectively connected to the inner wall of the outer die frame through the linear guide rail, and the outer die frame can further limit the first outer die and the second outer die, so that the running stability of the outer die is ensured.

7. Because the movable platform is connected with the lifting device, the lifting device can drive the movable platform to move up and down, so that the die assembly or die opening process of the upper die and the lower die is easier to operate.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of the explosive structure of FIG. 1;

fig. 3 is a schematic view of the structure of the direction a in fig. 2.

Marked in the figure as:

1. an insulator; 11. a steel cap; 12. umbrella skirt; 13. steel feet; 2. an upper die; 20. an upper die cavity; 21. a steel cap positioning cavity; 210. a vent groove; 22. a first through hole; 23. a third through hole; 3. a lower die; 30. a cladding cavity; 31. an inner mold; 310. a steel foot positioning cavity; 311. a second through hole; 32. an outer mold; 321. a first outer mold; 322. a second outer mold; 41. a first ejection cylinder; 42. a second ejection cylinder; 5. a glue injection hole; 6. a mobile platform; 7. a linear guide rail; 8. a lifting oil cylinder; 9. and (5) an outer mold frame.

Detailed Description

The utility model is further described below with reference to the accompanying examples:

in the utility model, the position relation between the inner mold and other parts in the horizontal direction is taken as a reference, the direction facing the center of the inner mold is regarded as the inner side, and the direction far from the center of the inner mold is regarded as the outer side.

In this embodiment, taking a double-skirt porcelain insulator 1 as an example, the insulator 1 is composed of a steel cap 11, two layers of disc-shaped umbrella skirts 12 and steel feet 13 which are fixed together.

The utility model provides a die for coating an insulator composite layer, which consists of an upper die 2 and a lower die 3. The lower die 3 comprises an inner die 31 and an outer die 32 sleeved on the inner die 31, the outer die 32 comprises a first outer die 321 and a second outer die 322 which are oppositely arranged, the first outer die 321 and the second outer die 322 are coated on the inner die 31, the upper die 2, the outer die 32 and the inner die 31 jointly enclose a coating cavity 30, and the shape of the coating cavity 30 is matched with that of the insulator umbrella skirt 12. The side wall of the outer die 32 is provided with a glue injection hole 5, and the glue injection hole 5 is communicated with the lower part of the cladding cavity 30. The cladding cavity 30 can also be enclosed by the inner die 31 and the upper die 2 together, but the upper die 2, the outer die 32 and the inner die 31 together can facilitate demoulding.

The bottom of the upper die 2 is provided with a steel cap positioning cavity 21, the steel cap positioning cavity 21 is provided with a bayonet, and the bayonet is positioned on the bottom wall of the upper die 2; the steel foot positioning cavity 310 has been seted up in the middle of centre at centre mould 31 upper portion, and steel foot positioning cavity 310 has the socket, and the socket is seted up on the roof of centre mould 31, and steel cap positioning cavity 21 and steel foot positioning cavity 310 coaxial setting, steel cap positioning cavity 21 can restrict the displacement of steel cap 11 in the horizontal direction, and steel foot positioning cavity 310 can restrict the displacement of steel foot 13 in the horizontal direction, has avoided insulator 1 to take place the displacement in the horizontal direction and has influenced product quality. The upper die top wall is provided with a first through hole 22 communicated with the steel cap positioning cavity 21, the side wall of the steel cap positioning cavity 21 is provided with a ventilation groove 210, the upper end of the ventilation groove 210 is communicated with the first through hole, and the lower end of the ventilation groove is communicated with the top of the cladding cavity 30. A second through hole 311 communicated with the steel foot positioning cavity 310 is formed in the bottom wall of the inner die, a first vertically downward ejection cylinder 41 is arranged in the first through hole 22 in a penetrating manner, and a second vertically upward ejection cylinder 42 is arranged in the second through hole 311 in a penetrating manner.

An upper die cavity 20 is formed in the bottom of the upper die 2, the shape of the upper die cavity 20 is matched with the shape of the outer wall of the outer die 32, the outer die 32 can be inserted into the upper die cavity 20, and a third through hole 23 is formed in the position, corresponding to the glue injection hole 5, of the upper die 2.

The lower die 3 is provided with a moving platform 6 below, the inner die 31 is fixed with the moving platform 6, an outer die frame 9 is arranged on the moving platform 6, a linear guide rail 7 is arranged on the side wall of the outer die frame 9, the linear guide rail 7 is perpendicular to the opposite surface between the first outer die 321 and the second outer die 322, sliding blocks (not shown in the figure) assembled on the linear guide rail are respectively arranged on the side walls of the first outer die 321 and the second outer die 322, the first outer die 321 and the second outer die 322 are respectively connected with the moving platform 6 in a sliding manner through the linear guide rail 7, a limiting mechanism (not shown in the figure) is arranged on the linear guide rail 7, the limiting mechanism can limit the moving distance of the first outer die 321 and the second outer die 322, and when the first outer die 321 and the second outer die 322 move inwards to the maximum extent, the cladding cavity 30 is coaxial with the inner die 31. The bottom of the movable platform 6 is connected with a lifting oil cylinder 8. The specific structures of the linear guide rail and the limiting mechanism are all of the prior art, and are not described in detail herein.

The first ejection cylinder 41 and the second ejection cylinder 42 may adopt other ejection mechanisms such as an air cylinder and a telescopic rod, so long as the insulator can be properly impacted, and good demoulding can be realized.

The working procedure of this embodiment is:

firstly, the steel feet 13 are vertically placed into the sockets of the steel foot positioning cavities 310, and the steel caps 11 and the umbrella skirt 12 are positioned above the inner mold 31. The first outer die 321 and the second outer die 322 are pushed to move inwards until the die assembly is completed, then the lifting oil cylinder 8 is started, the lifting oil cylinder 8 drives the movable platform 6 and the lower die 3 above the movable platform 6 to move upwards until the die assembly of the upper die 2 and the lower die 3 is completed, the outer die 32 is sleeved in the upper die cavity 20, and the steel cap 11 is sleeved in the steel cap positioning cavity 310 through a bayonet. After the mold closing is completed, the silicone rubber can be injected into the coating cavity 30 through the rubber injection hole 5, and then the procedures of heating, vulcanizing and the like are performed.

In demolding, first, the first ejection cylinder 41 is started to help the silicone rubber on the upper surface of the umbrella skirt 12 to separate from the inner walls of the first outer mold 321 and the second outer mold 322. Then, the lifting oil cylinder 8 is started, and the lifting oil cylinder 8 drives the movable platform 6 and the lower die 3 above the movable platform to move downwards until the movable platform is completely separated from the upper die 2. The first and second

outer molds

321 and 322 are pushed outward until the first and second

outer molds

321 and 322 are completely separated from the insulator umbrella skirt 12. The second ejection cylinder 42 is started to help the silicon rubber layer to separate from the upper surface of the inner mold 31, and the insulator is taken out to complete demolding.

The above description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make modifications or alterations to the disclosed technical content to the equivalent embodiments. Any simple modification, equivalent variation and variation of the above embodiments according to the technical substance of the present utility model are possible without departing from the technical substance of the present utility model.

Claims

1. The utility model provides a mould of cladding insulator composite layer, includes mould and lower mould, its characterized in that: the lower die comprises an inner die and an outer die sleeved on the inner die, a cladding cavity is formed between the outer die and the inner die, or the outer die, the inner die and the upper die jointly form the cladding cavity, the outer die comprises a first outer die and a second outer die which are symmetrically arranged, the outer die is provided with a glue injection hole, and the glue injection hole is communicated with the cladding cavity; the upper die is internally provided with a steel cap positioning cavity, the steel cap positioning cavity is provided with a bayonet communicated with the coating cavity, the bayonet is positioned on the bottom wall of the upper die, the inner die is internally provided with a steel foot positioning cavity, the steel foot positioning cavity is provided with a socket communicated with the coating cavity, the socket is arranged on the top wall of the inner die, and the steel cap positioning cavity and the steel foot positioning cavity are coaxially arranged; an upper die cavity is formed in the bottom of the upper die, and the outer die can be inserted into the upper die cavity.

2. A mold for cladding an insulator composite layer according to claim 1, wherein: the upper die is provided with a first through hole communicated with the steel cap positioning cavity.

3. A mold for cladding an insulator composite layer according to claim 2, wherein: and the side wall of the steel cap positioning cavity is provided with an air vent groove, the lower end of the air vent groove is communicated with the cladding cavity, and the upper end of the air vent groove is communicated with the first through hole.

4. A mold for cladding an insulator composite layer according to claim 3, wherein: the first through hole is communicated with the top wall of the upper die, and a first vertically downward ejection mechanism is arranged in the first through hole in a penetrating mode.

5. A mold for cladding an insulator composite layer according to claim 1, wherein: and a second through hole communicated with the steel foot positioning cavity is formed in the inner die.

6. The mold for cladding an insulator composite layer according to claim 5, wherein: the second through hole is communicated with the bottom wall of the inner die, and a second ejection mechanism vertically upwards penetrates through the second through hole.

7. A mould for cladding an insulator composite according to any one of claims 1 to 6, wherein: the inner die is fixed on the moving platform, and the first outer die and the second outer die are respectively connected with the moving platform in a sliding manner.

8. The mold for cladding an insulator composite layer according to claim 7, wherein: the first outer die and the second outer die are respectively connected with the moving platform in a sliding way through a linear guide rail, and a limiting mechanism is arranged on the linear guide rail.

9. The mold for cladding an insulator composite layer according to claim 8, wherein: the movable platform is provided with an outer die frame, the first outer die and the second outer die are positioned in the outer die frame, and the first outer die and the second outer die are respectively connected to the inner wall of the outer die frame through linear guide rails.

10. The mold for cladding an insulator composite layer according to claim 7, wherein: the movable platform is connected with a lifting device.