CN101262122A - An expansion method for cool contraction cable accessory - Google Patents
An expansion method for cool contraction cable accessory Download PDFInfo
- Publication number
- CN101262122A CN101262122A CNA2008100604881A CN200810060488A CN101262122A CN 101262122 A CN101262122 A CN 101262122A CN A2008100604881 A CNA2008100604881 A CN A2008100604881A CN 200810060488 A CN200810060488 A CN 200810060488A CN 101262122 A CN101262122 A CN 101262122A
- Authority
- CN
- China
- Prior art keywords
- cloth bag
- electric cable
- cable accessories
- hole
- template
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
An expansion method for cold shrinkable cable accessories is provided, which relates to a manufacturing method of cable accessories. The method comprises the following steps: 1) a through hole is installed on a template and the whole mouth of a columnar cloth bag is fixed to the right edge of the through hole at the right of the template; 2) the rest of the columnar cloth bag is pulled leftward to go through the through hole and a through hole at the center of a cable accessory; 3) the conical head of an expansion die is pointed to the through hole at the right of the template and a force is applied to the expansion die to ensure that the conical head and the thin wall column body go through the through hole of the template leftward and then enter into the through hole of the cable accessory; 4) the conical head is removed, the rest part of the columnar cloth bag is pulled from the right to go through the through hole of the cable accessory and then strained, and then a support tube is inserted into the cloth bag; 5) the expansion die moves rightward until the thin wall column body and the cloth bag totally leave the cable accessory and the support tube. The expansion method of the invention takes the cloth bag as a medium, which obviously improves the quality and grade of the product; the cloth bag can be reused and the method has simple operation steps, is convenient and high efficient and reduces the intensity of labor strength of the operators.
Description
Technical field
The present invention relates to the manufacture method of electric cable accessories, the expansion method of especially cable cold-contraction type transition joint, cold-contraction type terminal and shrinkage insulated tube.
Background technology
The cold-contraction type electric cable accessories has characteristics such as volume is little, easy to operate, product specification is few.Before installing and using, the cold-contraction type electric cable accessories is in the high-tension state, causes electric cable accessories permanent deformation or relaxation etc. easily and be in the high-tension state for a long time.Therefore adopt on-the-spot expansion for requiring than higher 110kV and above cold-contraction type electric cable accessories.And relatively require low slightly 35kV and following cold-contraction type electric cable accessories generally to adopt both at home and abroad before dispatching from the factory, to finish expansion (generally to expand on stay pipe; The cylindrical support pipe of certain-length twines welding by narrower plastics strip to be made, and puts into the electric cable accessories after the expansion, then an end of plastics strip progressively is pulled away from remove stay pipe after, electric cable accessories is fixed on the cable with regard to obvolvent).
Cold-contraction type electric cable accessories at factory's intramedullary expansion generally adopts the method for machinery and air pressure combination technology to expand at present.This method has two shortcomings: one, can leave a trace when attached cable annex two ends, serious meeting produces local deformation; Both influence the attractive in appearance of product, also influenced product quality.Two, dilatation mold directly contacts with the electric cable accessories inwall in process of expansion, can make the cold-contraction type electric cable accessories impaired or booties such as the dust on the dilatation mold are brought into the electric cable accessories inwall and cause potential safety hazard.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned background technology, a kind of improvement of expansion method of cold-contraction type electric cable accessories is provided, this method has the advantages that safety swift to operate, electric cable accessories can be not impaired, and simple to operation.
The invention provides following technical scheme:
A kind of expansion method of cold shrinking power cable adjunct, carry out according to the following steps:
1) make a perforation on the fixing template of erectting, the aperture of perforation is greater than dilatation mold; The whole sack of tubular cloth bag is fixed on the edge of the perforation on template right side;
2) electric cable accessories is horizontal is arranged in the template left side and aims at perforation, the remainder of tubular cloth bag is passed more the through hole of perforation and electric cable accessories central authorities to the Zola;
3) conical head of dilatation mold is aimed at perforation on the template right side, force in dilatation mold and make conical head and thin-walled stack shell pass the through hole that enters electric cable accessories after template is bored a hole left, after conical head passes through whole electric cable accessories, stopped; At this moment, the outer circumference surface of the thin-walled stack shell of dilatation mold is the electric cable accessories that coats, and cloth bag is clipped between thin-walled stack shell and the electric cable accessories;
4) take off conical head, the remainder of tubular cloth bag is strained after drawing the through hole that passes electric cable accessories more to the right; And in cloth bag, inject stay pipe, keep the locus of stay pipe and electric cable accessories accurate;
5) dilatation mold moves right, to discharge the lax cloth bag in back simultaneously and be pulled away from dilatation mold continuously to the right, the electric cable accessories of backing off gradually together with the cloth bag surface from the thin-walled stack shell just progressively obvolvent on the outer circumference surface of stay pipe, leave electric cable accessories and stay pipe fully until thin-walled stack shell and cloth bag.
Described cloth bag is made with carbon fiber bar and chemical fibre.
Described template is fixed on the lathe, and the straight reciprocating motion of described dilatation mold is realized by mechanical motion mechanism.
The present invention adopts the method for original creation, with cloth bag as medium, enter in the process of electric cable accessories at dilatation mold, electric cable accessories only is subjected to expansionary force radially, and axial pressure is born by cloth bag fully, thereby cold-contraction type electric cable accessories two ends need not mechanical fixation, electric cable accessories integral body all is same expansion multiplying power, does not have local deformation phenomenon bigger than normal, and the electric cable accessories surface after the expansion is without any the expansion vestige, be bright and clean having no time on the contrary, significantly promoted product quality and class; And cloth bag also can repeatedly reuse.In addition, the simple, convenient, efficient rate of whole dilation procedure step has also alleviated labor intensity of operating personnel.
Description of drawings
Fig. 1 is that cloth bag is fixed on the structural representation on the template.
Fig. 2 forms the conical head of dilatation mold and the structural representation of thin-walled stack shell.
Fig. 3 represents that the remainder of cloth bag passes the through hole of electric cable accessories central authorities, the schematic diagram that dilatation mold begins to expand.
Fig. 4 represent dilatation mold fully jacking the through hole of electric cable accessories central authorities.
Fig. 5 represents that conical head unloads earlier, and cloth bag is worn the right side of moving template to from thin-walled stack shell central authorities again; Afterwards, stay pipe begins to inject in the cloth bag of thin-walled stack shell central authorities from the left side.
After Fig. 6 represented that stay pipe inserts thin-walled stack shell and cloth bag fully, thin-walled stack shell and cloth bag were together toward moving right; The part of electric cable accessories is shunk obvolvent because of the thin-walled stack shell detaches and is lived stay pipe.
Fig. 7 represents that thin-walled stack shell and cloth bag leave electric cable accessories fully, and stay pipe is lived in the then whole obvolvents of electric cable accessories.
Embodiment
Further describe below in conjunction with accompanying drawing:
Cold-contraction type electric cable accessories 3 shown in the figure comprises transition joint, indoor outer terminal and cold shrink tube and needs through any one of predilation product that its material can be selected liquid or solid silicon rubber or ethylene propylene diene rubber etc. for use, and by annotating rubber or molded vulcanization moulding.
Among Fig. 1, the template 2 of setting is fixed on the equipment, makes a perforation on the template, and the aperture of perforation should be greater than dilatation mold; The whole sack of tubular cloth bag 1 is fixed on the edge of the perforation on template right side; Cloth bag is reusable, and breaking until it just needs to change; Cloth bag can be made with high-quality high tenacity nonwoven fabrics or carbon fiber bar and chemical fibre.
Dilatation mold shown in Figure 2 comprises conical head 6 and thin-walled stack shell 5, is shaped on plug-in embedding mouth between the two.The diameter of dilatation mold should be determined according to the expansion process choice of cold-contraction type electric cable accessories.
Fig. 3 represents that the remainder (except sack) of cloth bag passes the through hole of electric cable accessories central authorities, and dilatation mold begins left electric cable accessories 3 to be expanded on the right side, and electric cable accessories one end needs with hand a little firmly to its location in process of expansion.
Fig. 4 represents that dilatation mold constantly advances under the promotion of feed mechanism, just stop (in the dilatation mold motion process embrace the thin-walled stack shell 5 of dilatation mold fully until whole electric cable accessories after, cloth bag is isolated dilatation mold and electric cable accessories all the time, has avoided dilatation mold to make the electric cable accessories impaired); At this moment, cloth bag then is clipped between thin-walled stack shell and the electric cable accessories.
Fig. 5 represents stay pipe 7 is inserted the cloth bag that is positioned at thin-walled stack shell central authorities; Should earlier conical head 6 be unloaded before this, and the cloth bag movable part is worn the right side of moving template to from thin-walled stack shell central authorities.
After Fig. 6 represented that stay pipe inserts thin-walled stack shell and cloth bag fully, the feed mechanism band the thin-walled stack shell and is turned right mobilely, and cloth bag is also together pulled out to the right gradually; Electric cable accessories is then answered stopping of template and can't displacement, makes the thin-walled stack shell leave electric cable accessories gradually; The part of electric cable accessories is shunk the beginning obvolvent and is lived stay pipe because of the thin-walled stack shell in the through hole detaches.
Fig. 7 represents the thin-walled stack shell and leave electric cable accessories fully along with the feed mechanism band, and whole electric cable accessories embraced stay pipe fully; Whole process of expansion finishes.
Claims (3)
1, a kind of expansion method of cold shrinking power cable adjunct, carry out according to the following steps:
1) make a perforation on the fixing template of erectting (2), the aperture of perforation is greater than dilatation mold; The whole sack of tubular cloth bag is fixed on the edge of the perforation on template right side;
2) electric cable accessories (3) is horizontal is arranged in the template left side and aims at perforation, the remainder of tubular cloth bag is passed more the through hole of perforation and electric cable accessories central authorities to the Zola;
3) conical head (6) of dilatation mold is aimed at perforation on the template right side, force in dilatation mold and make conical head and thin-walled stack shell (5) pass the through hole that enters electric cable accessories after template is bored a hole left, after conical head passes through whole electric cable accessories, stopped; At this moment, the outer circumference surface of the thin-walled stack shell of dilatation mold is the electric cable accessories that coats, and cloth bag is clipped between thin-walled stack shell and the electric cable accessories;
4) take off conical head, the remainder of tubular cloth bag is strained after drawing the through hole that passes electric cable accessories more to the right; And in cloth bag, inject stay pipe, keep the locus of stay pipe and electric cable accessories accurate;
5) dilatation mold moves right, to discharge the lax cloth bag in back simultaneously and be pulled away from dilatation mold continuously to the right, the electric cable accessories of backing off gradually together with the cloth bag surface from the thin-walled stack shell just progressively obvolvent on the outer circumference surface of stay pipe, leave electric cable accessories and stay pipe fully until thin-walled stack shell and cloth bag.
2, the expansion method of a kind of cold shrinking power cable adjunct according to claim 1 is characterized in that described cloth bag makes with carbon fiber bar and chemical fibre.
3, according to the expansion method of claim or 2 described a kind of cold shrinking power cable adjuncts, it is characterized in that described template is fixed on the lathe, the straight reciprocating motion of described dilatation mold is realized by mechanical motion mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100604881A CN101262122A (en) | 2008-04-14 | 2008-04-14 | An expansion method for cool contraction cable accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100604881A CN101262122A (en) | 2008-04-14 | 2008-04-14 | An expansion method for cool contraction cable accessory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101262122A true CN101262122A (en) | 2008-09-10 |
Family
ID=39962407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100604881A Pending CN101262122A (en) | 2008-04-14 | 2008-04-14 | An expansion method for cool contraction cable accessory |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101262122A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290777A (en) * | 2011-08-08 | 2011-12-21 | 保定冀开电力器材有限公司 | Power cable accessory terminal and expansion method thereof |
| CN102623945A (en) * | 2012-03-31 | 2012-08-01 | 安徽省浩辉电力技术有限公司 | Cooling-shrinkage forming device for cable connection terminal |
| CN101814708B (en) * | 2009-02-19 | 2012-08-29 | 泉州七星电气有限公司 | Method for pre-expanding cold-shrinking cable accessory |
| CN107979048A (en) * | 2017-12-22 | 2018-05-01 | 江苏华强电气设备有限公司 | A kind of insulating tube type busbar annex expansion device and its application process |
| CN109647970A (en) * | 2018-12-29 | 2019-04-19 | 江苏沃能电气科技有限公司 | A kind of expansion technique of cable accessory |
| CN109760347A (en) * | 2018-12-29 | 2019-05-17 | 东莞市裕天硅橡胶科技有限公司 | A kind of production method of environment-friendly silicon rubber foaming tube |
| CN112186657A (en) * | 2020-10-13 | 2021-01-05 | 长缆电工科技股份有限公司 | Method for installing cable intermediate joint |
-
2008
- 2008-04-14 CN CNA2008100604881A patent/CN101262122A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814708B (en) * | 2009-02-19 | 2012-08-29 | 泉州七星电气有限公司 | Method for pre-expanding cold-shrinking cable accessory |
| CN102290777A (en) * | 2011-08-08 | 2011-12-21 | 保定冀开电力器材有限公司 | Power cable accessory terminal and expansion method thereof |
| CN102623945A (en) * | 2012-03-31 | 2012-08-01 | 安徽省浩辉电力技术有限公司 | Cooling-shrinkage forming device for cable connection terminal |
| CN107979048A (en) * | 2017-12-22 | 2018-05-01 | 江苏华强电气设备有限公司 | A kind of insulating tube type busbar annex expansion device and its application process |
| CN109647970A (en) * | 2018-12-29 | 2019-04-19 | 江苏沃能电气科技有限公司 | A kind of expansion technique of cable accessory |
| CN109760347A (en) * | 2018-12-29 | 2019-05-17 | 东莞市裕天硅橡胶科技有限公司 | A kind of production method of environment-friendly silicon rubber foaming tube |
| CN112186657A (en) * | 2020-10-13 | 2021-01-05 | 长缆电工科技股份有限公司 | Method for installing cable intermediate joint |
| CN112186657B (en) * | 2020-10-13 | 2022-06-07 | 长缆电工科技股份有限公司 | Method for installing cable intermediate joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101262122A (en) | An expansion method for cool contraction cable accessory | |
| KR101712898B1 (en) | Component with sealing plug and method for the insert moulding of a component insert | |
| CA2364488A1 (en) | Thermoplastic tube | |
| JPS63202421A (en) | Production unit for plastic hollow body with movable mandrel | |
| CN101712198B (en) | Fuel tank opening | |
| CN114179327B (en) | Rubber tube takes off core chuck | |
| US9908280B2 (en) | Method of manufacturing fuel tank and fuel tank | |
| PL1646566T3 (en) | Method for the production of a tube | |
| US3272896A (en) | Method and apparatus for forming plastic articles | |
| US10583587B2 (en) | Method for producing a fiber-reinforced plastic component | |
| EP1114711A3 (en) | Blow-moulded articles and blowmoulding methods for producing them | |
| CN204019811U (en) | Automobile-used sealing shroud product goes out the modified node method of die craft equipment | |
| CN100448129C (en) | Cold shrinking cable fitting expanded by new method | |
| KR100479168B1 (en) | Molding method of a Fill Tube Check Vvalve-spud and its device | |
| EP0818297B1 (en) | Method and apparatus for the production of an article of elastomeric material | |
| CN104384855A (en) | Manufacturing process of electromagnetic valve pilot head connected magnetic shielding tube | |
| CN214082428U (en) | Embedded part fixing device with positioning mechanism | |
| JP2020138520A (en) | Method for manufacturing tubular member for vehicle body | |
| CN204927949U (en) | Shrinkage cable accessories's extension fixture | |
| CN220864669U (en) | Plastic tag presss from both sides mould thrustor | |
| CN221127079U (en) | Novel glue filling device for motor stator | |
| JP3751376B2 (en) | Hose base mounting method and apparatus | |
| JP4504519B2 (en) | Bulge processing equipment | |
| CN219522921U (en) | Traceless ejection structure and die | |
| CN215785738U (en) | Automatic elastic telescopic plug clamping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080910 |