CN205159021U - Composite covering prevents into jelly mold utensil - Google Patents
Composite covering prevents into jelly mold utensil Download PDFInfo
- Publication number
- CN205159021U CN205159021U CN201520898608.0U CN201520898608U CN205159021U CN 205159021 U CN205159021 U CN 205159021U CN 201520898608 U CN201520898608 U CN 201520898608U CN 205159021 U CN205159021 U CN 205159021U
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- die cavity
- insulating cylinder
- push rod
- framed
- left end
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a composite covering prevents into jelly mold utensil, including framed, die cavity, runner, injecting glue hole, insulating cylinder, bush, protective sheath, telescoping device, left ejector pin and right ejector rod, die cavity, runner and injecting glue hole three are linked together, the bush is arranged in the insulating cylinder and is cooperated the insulating cylinder to use, the protective sheath sets up the left end at the bush, the telescoping device sets up the right -hand member at the bush, the insulating cylinder sets up between protective sheath and telescoping device, left side ejector pin setting is on die cavity left end framed, right ejector rod sets up on die cavity right -hand member framed, its characterized in that: the left end of die cavity is provided with overflow tank, overflow tank is linked together with the die cavity. The utility model discloses an advantage: simple structure, convenient operation can avoid in the sizing material gets into the insulating cylinder effectively, the best use amount that can come meticulous silicon rubber according to the excessive volume of gluing in the overflow tank simultaneously to improve the product percent of pass and practice thrift the production materials.
Description
Technical field
The utility model relates to a kind of mould, specifically, relates to a kind of composite sheath and prevents into sealing rubber die, belong to voltage levels polymeric metal oxide surge arrester technical field.
Background technology
The core body that voltage levels polymeric metal oxide surge arrester is mainly become with resistor disc combo by composite sheath and other related components form.The injection moulding of composite sheath is an important procedure in lightning arrester manufacturing process.
There is following defect in conventional composite sheath mould:
1, there is certain headspace in the die cavity end of mould and insulating cylinder end face area, because insulating cylinder does not also expand during injection, sizing material can enter in the space of insulating cylinder, lining, die cavity end three formation along gap under huge injection pressure.
2, the sizing material entered is owing to can not contact completely with mould, and temperature can not reach cures requirements, and insulating cylinder and lining can bond together by it.Shaping complete after, lining is difficult to take out in insulating cylinder.
3, enter into insulating cylinder silk tooth, the silicon rubber of sleeve surface is difficult to clear up.
4, the low temperature phenomenon that the silicon rubber of composite sheath end causes because of mould structure defect often there will be rubber state, produces waste product, reduces conforming product rate.
For this reason, a kind of new technical scheme is needed to solve the problems referred to above.
Summary of the invention
The purpose of this utility model is to provide a kind of composite sheath to prevent into sealing rubber die.
The technical solution adopted in the utility model is:
A kind of composite sheath is prevented into sealing rubber die, comprise framed, die cavity, runner, hole for injecting glue, insulating cylinder, lining, protective sleeve, retractor device, left push rod and right push rod, described die cavity, runner is connected with hole for injecting glue three, described lining is placed in also coordinated insulation cylinder use in insulating cylinder, described protective sleeve is arranged on the left end of lining, described retractor device is arranged on the right-hand member of lining, described insulating cylinder is arranged between protective sleeve and retractor device, described left push rod be arranged on die cavity left end framed on, described right push rod be arranged on die cavity right-hand member framed on, the left end of described die cavity is provided with excessive glue groove, described excessive glue groove is connected with die cavity.
Further, the center line of described left push rod, right push rod and die cavity three is located along the same line.
Advantage of the present utility model: structure is simple, easy to operate, can avoid sizing material to enter in insulating cylinder effectively, can carry out the optimum quantum of utilization of meticulous silicon rubber, thus materials is produced in raising conforming product rate and saving according to the excessive glue amount in excessive glue groove simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Wherein: 1, framed, 2, die cavity, 3, runner, 4, hole for injecting glue, 5, insulating cylinder, 6, lining, 7, protective sleeve, 8, retractor device, 9, left push rod, 10, right push rod, 11, overflow glue groove.
Embodiment
As shown in Figure 1, a kind of composite sheath is prevented into sealing rubber die, comprises framed 1, die cavity 2, runner 3, hole for injecting glue 4, insulating cylinder 5, lining 6, protective sleeve 7, retractor device 8, left push rod 9 and right push rod 10.Die cavity 2, runner 3 are connected with hole for injecting glue 4 three; lining 6 is placed in the interior also coordinated insulation cylinder 5 of insulating cylinder 5 and uses; protective sleeve 7 is arranged on the left end of lining 6; retractor device 8 is arranged on the right-hand member of lining 6; insulating cylinder 5 is arranged between protective sleeve 7 and retractor device 8; left push rod 9 is arranged on framed 1 of die cavity 2 left end; right push rod 10 is arranged on framed 1 of die cavity 2 right-hand member; the center line of left push rod 9, right push rod 10 and die cavity 2 three is located along the same line; the left end of die cavity 2 is provided with excessive glue groove 11, and the glue groove 11 that overflows is connected with die cavity 2.
When producing; first lining, protective sleeve, insulating cylinder and retractor device are assembled (two end faces of protective sleeve and retractor device protection insulating cylinder); then be placed in the die cavity of mould, left push rod, right push rod tightened fixing, after matched moulds, carries out silicon rubber injection.Because protective sleeve and retractor device fit tightly with insulating cylinder both ends of the surface respectively, silicon rubber can not enter in insulating cylinder and can not enter into the contact-making surface of insulating cylinder and lining in injection process.In addition, in order to when preventing from injecting, unnecessary sizing material may impact distortion to left and right push rod under the injection pressure of up to a hundred tons, the left end of die cavity 2 is provided with excessive glue groove 11, the glue groove 11 that overflows is connected with die cavity 2, sizing material unnecessary so then flows out in excessive glue groove 11, and reasonably judged by the sizing material discharge of observing in excessive glue groove 11 and control the injection volume of sizing material, avoid the waste of sizing material.
Claims (2)
1. a composite sheath is prevented into sealing rubber die, comprise framed, die cavity, runner, hole for injecting glue, insulating cylinder, lining, protective sleeve, retractor device, left push rod and right push rod, described die cavity, runner is connected with hole for injecting glue three, described lining is placed in also coordinated insulation cylinder use in insulating cylinder, described protective sleeve is arranged on the left end of lining, described retractor device is arranged on the right-hand member of lining, described insulating cylinder is arranged between protective sleeve and retractor device, described left push rod be arranged on die cavity left end framed on, described right push rod be arranged on die cavity right-hand member framed on, it is characterized in that: the left end of described die cavity is provided with excessive glue groove, described excessive glue groove is connected with die cavity.
2. a kind of composite sheath according to claim 1 is prevented, into sealing rubber die, it is characterized in that: the center line of described left push rod, right push rod and die cavity three is located along the same line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520898608.0U CN205159021U (en) | 2015-11-12 | 2015-11-12 | Composite covering prevents into jelly mold utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520898608.0U CN205159021U (en) | 2015-11-12 | 2015-11-12 | Composite covering prevents into jelly mold utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159021U true CN205159021U (en) | 2016-04-13 |
Family
ID=55694688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520898608.0U Active CN205159021U (en) | 2015-11-12 | 2015-11-12 | Composite covering prevents into jelly mold utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159021U (en) |
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2015
- 2015-11-12 CN CN201520898608.0U patent/CN205159021U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |