Insulator injection mold structure

Abstract

The utility model relates to the technical field of molds, in particular to an insulator injection mold structure which comprises an upper mold base and a lower mold base, a lower mold cavity is formed in the upper end face of the lower mold base, and an upper mold cavity is formed in the lower end face of the upper mold base. A front end positioning assembly is arranged at one end of the lower die cavity, a reciprocating core pulling driving piece is arranged at the other end of the lower die cavity, an umbrella skirt shaping cylinder is arranged at the front end of the reciprocating core pulling driving piece, an abutting shaft body is arranged in the middle of the front end of the umbrella skirt shaping cylinder, and an inner umbrella skirt shaping cavity is formed in the umbrella skirt shaping cylinder. And an outer umbrella skirt shaping cavity is formed among the outer wall of the umbrella skirt shaping cylinder, the upper die cavity and the lower die cavity. According to the utility model, the front-end positioning assembly and the umbrella skirt shaping cylinder can be used for positioning the two ends of the core rod respectively and then performing injection molding on the umbrella skirts, so that the working stability is high and the structure is reliable; the device can adapt to production and manufacturing of various different insulators, is flexible, convenient and simple to use, and is beneficial to improving the production efficiency and reducing the labor cost.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an insulator injection mold structure. Background Art

[0002] The injection mold is an important tool in the production process of composite insulators. It mainly plays the role of shaping and vulcanization to ensure the appearance and electrical performance of the product. The composite insulator consists of three parts: core rod, silicone rubber, and end fittings. For the existing injection mold structure design of composite insulators, it mainly produces conventional domestic composite insulator umbrella products, and cannot produce special umbrella structure products. Due to the company's development needs, the umbrella shape of the product in the overseas market is very different from the ordinary domestic umbrella shape due to different environments and design concepts. Therefore, a new injection mold design is required for special umbrella shapes to meet production needs. Summary of the invention

[0003] The utility model provides an insulator injection mold structure in view of the problems of the prior art. The front end positioning component and the shed molding cylinder can be used to respectively position the two ends of the core rod before the shed molding is injection molded. The working stability is high and the structure is reliable. Under the action of the shed molding cylinder, the shed molding can be conveniently carried out in the outer shed molding cavity and the inner shed molding cavity at the same time. The utility model can be adapted to the production and manufacturing of a variety of different insulators. The use is flexible, convenient and simple, which is conducive to improving production efficiency and reducing labor costs.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides an insulator injection mold structure, which comprises an upper mold base and a lower mold base, the upper end surface of the lower mold base is provided with a lower mold cavity, and the lower end surface of the upper mold base is provided with an upper mold cavity; one end of the lower mold cavity is provided with a front end positioning component, and the other end of the lower mold cavity is provided with a reciprocating core-pulling driving component, the output shaft of the reciprocating core-pulling driving component extends into the lower mold cavity, and the front end of the output shaft of the reciprocating core-pulling driving component is equipped with an umbrella skirt molding cylinder, the front end positioning component is used to position one end of the insulator core rod, the front end middle part of the umbrella skirt molding cylinder is provided with a positioning plug hole for the insulator core rod to penetrate, an inner umbrella skirt molding cavity is provided in the umbrella skirt molding cylinder, when the upper mold base and the lower mold base are molded together, an injection space is formed between the upper mold cavity and the lower mold cavity, and an outer umbrella skirt molding cavity is formed between the outer wall of the umbrella skirt molding cylinder and the upper mold cavity and the lower mold cavity.

[0006] Wherein, an injection port is arranged on the upper mold base, and the injection port is communicated with the upper mold cavity.

[0007] Wherein, the reciprocating core-pulling driving member is an oil cylinder, an air cylinder or an electric push rod.

[0008] Among them, the front end positioning assembly includes a fixed block, an adjusting rod threadedly connected to the fixed block, and a positioning block installed at one end of the adjusting rod. The fixed block is installed at one end of the lower mold base. The fixed block is penetrated by a threaded connection hole. The adjusting rod is threaded through the threaded connection hole. The positioning block is provided with a positioning groove at one end close to the lower mold cavity.

[0009] Wherein, the other end of the adjusting rod is provided with a handle.

[0010] Beneficial effects of the utility model:

[0011] Specifically, when the utility model is working, the core rod of the insulator is placed in the lower mold cavity, one end of the core rod is positioned by the front end positioning component, the reciprocating core pulling driving member drives the shed molding cylinder to move close to the core rod in the lower mold cavity, and the other end of the core rod extends into the positioning plug hole. After the two ends of the core rod are positioned respectively by the front end positioning component and the shed molding cylinder, the upper mold base is molded with the lower mold base under the drive of the external injection device, and an injection space is formed between the upper mold cavity and the lower mold cavity. Plastic is injected from the injection port for injection molding, so that the core rod is in the shed molding cavity of the inner shed molding cavity and the outer shed molding cavity. Injection molding, after molding, the reciprocating core-pulling driving member drives the shed molding cylinder to retreat, so that the shed and the core rod after injection molding are conveniently taken out; the utility model utilizes the front-end positioning component and the shed molding cylinder to respectively position the two ends of the core rod before injection molding the shed, and has high working stability and reliable structure; further, under the action of the shed molding cylinder, it is convenient to mold the shed in the outer shed molding cavity and the inner shed molding cavity at the same time, and can be adapted to the production and manufacturing of a variety of different insulators, and is flexible, convenient and simple to use, which is conducive to improving production efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a structural schematic diagram of an insulator injection mold structure.

[0013] Figure 2 It is a structural schematic diagram of the lower die base of the utility model.

[0014] Figure 3 It is a structural schematic diagram of the umbrella skirt shaping cylinder of the utility model.

[0015] exist Figures 1 to 3 Reference numerals in the drawings include:

[0016] 1. Upper mold base; 2. Lower mold base; 3. Lower mold cavity; 4. Front end positioning assembly; 5. Reciprocating core-pulling drive; 6. Umbrella skirt molding cylinder; 7. Positioning socket; 8. Inner umbrella skirt molding cavity; 9. Injection port; 10. Fixing block; 11. Adjusting rod; 12. Positioning block; 13. Handle. DETAILED DESCRIPTION

[0017] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0018] An insulator injection mold structure, such as Figures 1 to 3 As shown, it comprises an upper die base 1 and a lower die base 2, wherein the upper end surface of the lower die base 2 is provided with a lower die cavity 3, and the lower end surface of the upper die base is provided with an upper die cavity; a front end positioning component 4 is provided at one end of the lower die cavity 3, and a reciprocating core-pulling driving member 5 is provided at the other end of the lower die cavity 3, wherein the output shaft of the reciprocating core-pulling driving member 5 extends into the lower die cavity 3, and an umbrella skirt shaping cylinder 6 is installed at the front end of the output shaft of the reciprocating core-pulling driving member 5, and the front end positioning component 4 is used to adjust the insulator core rod. One end is positioned, a positioning socket 7 for the insertion of the insulator core rod is arranged in the middle of the front end of the umbrella skirt shaping cylinder 6, an inner umbrella skirt shaping cavity 8 is arranged in the umbrella skirt shaping cylinder 6, when the upper mold base 1 and the lower mold base 2 are molded, an injection space is formed between the upper mold cavity and the lower mold cavity 3, and an outer umbrella skirt shaping cavity is formed between the outer wall of the umbrella skirt shaping cylinder 6 and the upper mold cavity and the lower mold cavity 3; wherein, an injection port 9 is arranged on the upper mold base 1, and the injection port 9 is communicated with the upper mold cavity.

[0019] Specifically, when the utility model is working, the core rod of the insulator is placed in the lower mold cavity 3, one end of the core rod is positioned by the front end positioning component 4, the reciprocating core pulling driving member 5 drives the umbrella skirt shaping cylinder 6 to move close to the core rod in the lower mold cavity 3, and the other end of the core rod extends into the positioning plug hole 7. After the two ends of the core rod are positioned by the front end positioning component 4 and the umbrella skirt shaping cylinder 6 respectively, the upper mold base 1 is driven by the external injection device to close the mold with the lower mold base 2, and an injection space is formed between the upper mold cavity and the lower mold cavity 3, and plastic is injected from the injection port 9 for injection molding, so that the core rod is fixed in the inner umbrella skirt shaping cavity 8 and the outer umbrella skirt shaping cavity 8. The shed in the cavity is injection molded. After molding, the reciprocating core-pulling driving member 5 drives the shed molding cylinder 6 to retreat, so that the shed and the core rod after injection molding can be taken out conveniently. The utility model utilizes the front-end positioning component 4 and the shed molding cylinder 6 to respectively position the two ends of the core rod before injection molding the shed, and has high working stability and reliable structure. Furthermore, under the action of the shed molding cylinder 6, it is convenient to mold the shed in the outer shed molding cavity and the inner shed molding cavity 8 at the same time, which can be adapted to the production and manufacturing of a variety of different insulators, is convenient and simple to use, and is conducive to improving production efficiency and reducing labor costs.

[0020] In this embodiment, the reciprocating core-pulling driving member 5 is an oil cylinder, an air cylinder or an electric push rod. Specifically, under the above arrangement, it is convenient to drive the umbrella skirt shaping cylinder 6 to move back and forth, which is convenient for demoulding.

[0021] In this embodiment, the front end positioning assembly 4 includes a fixed block 10, an adjusting rod 11 threadedly connected to the fixed block 10, and a positioning block 12 installed at one end of the adjusting rod 11. The fixed block 10 is installed at one end of the lower die seat 2. The fixed block 10 is provided with a threaded connection hole. The adjusting rod 11 is threadedly inserted into the threaded connection hole. The positioning block 12 is provided with a positioning groove at one end close to the lower die cavity 3. Among them, the other end of the adjusting rod 11 is provided with a handle 13. Specifically, when using the front end positioning assembly 4, one end of the core rod of the insulator is inserted into the positioning groove of the positioning block 12, and the other end of the core rod of the insulator is inserted into the shed shaping cylinder 6. The positioning groove is used to position one end of the core rod, and then the adjusting rod 11 is twisted through the handle 13 to drive the positioning block 12 to move forward into the lower die cavity 3, and cooperate with the shed shaping cylinder 6 to tighten the two ends of the core rod.

[0022] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. An insulator injection mold structure, characterized in that: The invention comprises an upper die seat and a lower die seat, wherein the upper end surface of the lower die seat is provided with a lower die cavity, and the lower end surface of the upper die seat is provided with an upper die cavity; a front end positioning assembly is provided at one end of the lower die cavity, and a reciprocating core-pulling driving member is provided at the other end of the lower die cavity, the output shaft of the reciprocating core-pulling driving member extends into the lower die cavity, and an umbrella skirt molding cylinder is installed at the front end of the output shaft of the reciprocating core-pulling driving member, the front end positioning assembly is used to position one end of the insulator core rod, a positioning plug hole for the insulator core rod to be inserted is provided at the middle part of the front end of the umbrella skirt molding cylinder, an inner umbrella skirt molding cavity is provided in the umbrella skirt molding cylinder, and when the upper die seat is molded with the lower die seat, an injection space is formed between the upper die cavity and the lower die cavity, and an outer umbrella skirt molding cavity is formed between the outer wall of the umbrella skirt molding cylinder and the upper die cavity and the lower die cavity.

2. The insulator injection mold structure according to claim 1, characterized in that: The upper mold base is provided with an injection port, and the injection port is communicated with the upper mold cavity.

3. The insulator injection mold structure according to claim 1, characterized in that: The reciprocating core-pulling driving member is an oil cylinder, an air cylinder or an electric push rod.

4. The insulator injection mold structure according to claim 1, characterized in that: The front end positioning assembly includes a fixed block, an adjusting rod threadedly connected to the fixed block, and a positioning block installed at one end of the adjusting rod. The fixed block is installed at one end of the lower mold base. The fixed block is penetrated by a threaded connection hole. The adjusting rod is threadedly passed through the threaded connection hole. The positioning block is provided with a positioning groove at one end close to the lower mold cavity.

5. The insulator injection mold structure according to claim 4, characterized in that: The other end of the adjusting rod is provided with a handle.

Images