CN111431012A - SR cable production method and SR cable - Google Patents
SR cable production method and SR cable Download PDFInfo
- Publication number
- CN111431012A CN111431012A CN202010155532.8A CN202010155532A CN111431012A CN 111431012 A CN111431012 A CN 111431012A CN 202010155532 A CN202010155532 A CN 202010155532A CN 111431012 A CN111431012 A CN 111431012A
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- Prior art keywords
- cable
- solvent
- production method
- mold
- joint
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
- H01R43/24—Assembling by moulding on contact members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/56—Means for preventing chafing or fracture of flexible leads at outlet from coupling part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
- H01R13/5845—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable the strain relief being achieved by molding parts around cable and connections
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a SR cable production method, which comprises the following steps: (1) melting: a joint of the cable outer cover is coated with a meltable solvent; (2) and (3) loading a mold: assembling an SR mold at a joint of the cable jacket; (3) injection molding: injecting an SR raw material into an SR mold, and performing injection molding; (4) removing the mold: and disassembling the SR die to obtain a SR cable finished product. The invention simplifies the production process, improves the production efficiency and greatly improves the separation strength of SR.
Description
Technical Field
The invention relates to the field of cable production, in particular to an SR cable production method and an SR cable.
Background
SR (strain relief) is a positioning buckle formed on the cable in an injection molding mode, can be arranged at the tail of the plug and is used for eliminating the swinging stress of the wire and preventing the core wire at the joint of the wire from being broken, and can also be used for clamping and fixing the cable and the structural member of the equipment.
The conventional method for producing the SR is to add a copper button on the SR molding part to increase the bonding strength of the SR plastic and the wire. However, the technical means has the following disadvantages: 1. different sizes of copper buttons are needed for wires with different diameters; 2. the wire outer cover is easy to damage when the copper button is pressed and connected; 3. the hoisting weight is only about 5kg, and the separation strength is limited; 4. in order to cover the copper button after injection molding, the SR volume is greatly increased.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the SR cable production method and the SR cable are provided, the SR production process is simplified, and the strength of the SR is improved.
In order to solve the technical problems, the invention adopts the technical scheme that:
a SR cable production method comprises the following steps:
(1) melting: a joint of the cable outer cover is coated with a meltable solvent;
(2) and (3) loading a mold: assembling an SR die at a joint coated with a meltable solvent outside a cable;
(3) injection molding: injecting an SR raw material into an SR mold, wherein the meltable solvent reacts with the joint of the cable jacket and the SR raw material respectively to realize injection molding;
(4) removing the mold: and disassembling the SR die to obtain a SR cable finished product.
The SR cable produced by the SR cable production method comprises a cable body and an SR connector, wherein the SR connector is sleeved on the outer side of the cable body.
The invention has the beneficial effects that: the adoption can dissolve the solvent and be melted outside the cable to the mode through injection moulding becomes an organic whole with SR and cable, can make SR and cable combine together, has promoted SR's separation strength greatly, has replaced the copper among the prior art and has detained, reduction in production cost has reduced SR's volume, makes the SR cable have the characteristic of small volume, high strength, and the manufacturing process is simple and convenient, has improved production efficiency, has very big industrial value.
Drawings
Fig. 1 is a first schematic structural diagram of an SR cable according to an embodiment of the present invention;
FIG. 2 is a second schematic structural diagram of an SR cable according to an embodiment of the present invention;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3;
fig. 5 is a cross-sectional view taken along the plane B-B in fig. 3.
Description of reference numerals:
1. a cable body; 2. an SR linker.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
A SR cable production method comprises the following steps:
(1) melting: a joint of the cable outer cover is coated with a meltable solvent;
(2) and (3) loading a mold: assembling an SR die at a joint coated with a meltable solvent outside a cable;
(3) injection molding: injecting an SR raw material into an SR mold, wherein the meltable solvent reacts with the joint of the cable jacket and the SR raw material respectively to realize injection molding;
(4) removing the mold: and disassembling the SR die to obtain a SR cable finished product.
The working principle of the invention is as follows:
after the cable is coated with the meltable solvent, SR injection molding is carried out on one end of the cable coated with the meltable solvent, and in the injection molding process, the SR is fused with the fused cable at the end coated with the meltable solvent into a whole and is molded to form the integrated SR cable.
From the above description, the beneficial effects of the present invention are: the adoption can dissolve the solvent and be melted outside the cable to the mode through injection moulding becomes an organic whole with SR and cable, can make SR and cable combine together, has promoted SR's separation strength greatly, has replaced the copper among the prior art and has detained, reduction in production cost has reduced SR's volume, makes the SR cable have the characteristic of small volume, high strength, and the manufacturing process is simple and convenient, has improved production efficiency, has very big industrial value.
Furthermore, the cable is covered by PVC material.
Furthermore, the SR is made of PVC material.
As can be seen from the above description, PVC is a polar polymer, which has a strong affinity for conductive substances, and the softening temperature of PVC is only 85 ℃, and the PVC can be softened without an excessively high temperature, and can be extruded to form a cable jacket, and the PVC is a meltable material, so that the SR and the cable jacket can be integrated by using PVC as the raw materials of the cable jacket and the SR.
Further, the solvent is acetone.
Further, the solvent is methanol.
Further, the solvent is heptane.
From the above description, it can be seen that the three kinds of melting can be adopted to melt PVC, so that both SR and the cable jacket can be melted, and further can be integrated, and dried and formed in the subsequent steps.
Further, the SR outer diameter is at least 1mm larger than the cable.
As can be seen from the above description, the SR outer diameter is at least 1mm larger than the cable, ensuring maximum separation strength between the SR and the cable.
Further, the steps (1) to (4) are carried out at normal temperature.
As can be seen from the above description, since the SR and the cable jacket are both made of PVC, and the PVC can be solidified and molded at 80 ℃ for two hours, in order to accelerate the molding speed of the SR and ensure that the SR has enough time to be melted and integrated with the cable jacket, the molding cooling temperature of the SR should not be too low, and the SR molding time should not be too short, the above steps (1) - (4) performed at normal temperature can ensure that the SR and the cable have enough melting time, and can accelerate the solidification and molding speed of the SR and the cable jacket, and improve the production efficiency.
Further, the outer diameter of the cable is 3.0mm, 3.5mm or 4.5 mm.
Further, the temperature of the SR die in the step (3) is 40-60 ℃.
Furthermore, in the step (3), the cable outer coating is melted by the solvent and then is integrated with the unsolidified SR raw material, and then cooling, drying and forming are carried out.
As can be seen from the above description, after the SR material is injected into the SR mold, the SR material is melted into a single body with the melted cable jacket, and is gradually cooled and dried to form a shape, so that the SR and the cable jacket can be integrated into a single structure, thereby improving the separation strength.
The SR cable produced by the SR cable production method comprises a cable body and an SR connector, wherein the SR connector is sleeved on the outer side of the cable body.
Further, the SR connector and the cable body are integrally formed.
From the above description, it can be known that, compared with the SR and cable bonding mode or the copper buckle injection molding mode, the SR connector and the cable body are integrally formed, and the strength of the SR cable can be greatly improved.
The first embodiment of the invention is as follows:
referring to fig. 1 to 5, a method for producing an SR cable includes the following steps:
(1) melting: a joint of the cable outer cover is coated with a meltable solvent;
(2) and (3) loading a mold: assembling an SR die at a joint coated with a meltable solvent outside a cable;
(3) injection molding: injecting an SR raw material into an SR mold, wherein the meltable solvent reacts with the joint of the cable jacket and the SR raw material respectively to realize injection molding;
(4) removing the mold: and disassembling the SR die to obtain a SR cable finished product.
Preferably, the cable is externally made of PVC material.
Preferably, the SR is made of PVC.
Preferably, the solvent is acetone;
preferably, the steps (1) to (4) are carried out at normal temperature.
Preferably, the inner diameter a of the cable is 4.5mm, the minimum b of the SR cable outer diameter is 8.5mm, and the maximum c of the SR cable outer diameter is 10.5 mm.
Specifically, in the step (3), the cable outer coating is dissolved by the solvent and then is dissolved with the unsolidified SR raw material into a whole, and then cooling, drying and forming are carried out.
The SR cable produced by the SR cable production method comprises a cable body 1 and an SR connector 2, wherein the SR connector 2 is sleeved outside the cable body 1.
Referring to fig. 1 to 4, the SR tab 2 is integrally formed with the cable body 1.
The second embodiment of the invention is as follows:
referring to fig. 1 to 5, a method for producing an SR cable includes the following steps:
(1) melting: a joint of the cable outer cover is coated with a meltable solvent;
(2) and (3) loading a mold: assembling an SR die at a joint coated with a meltable solvent outside a cable;
(3) injection molding: injecting an SR raw material into an SR mold, wherein the meltable solvent reacts with the joint of the cable jacket and the SR raw material respectively to realize injection molding;
(4) removing the mold: and disassembling the SR die to obtain a SR cable finished product.
Preferably, the cable is externally made of PVC material.
Preferably, the SR is made of PVC.
Preferably, the solvent is methanol;
preferably, the steps (1) to (4) are carried out at normal temperature.
Preferably, the inner diameter of the cable is 3.5mm, the minimum outer diameter of the SR cable is 7.5mm, and the maximum outer diameter of the SR cable is 9.5 mm.
Specifically, in the step (3), the cable outer coating is dissolved by the solvent and then is dissolved with the unsolidified SR raw material into a whole, and then cooling, drying and forming are carried out.
The SR cable produced by the SR cable production method comprises a cable body 1 and an SR connector 2, wherein the SR connector 2 is sleeved outside the cable body 1.
Referring to fig. 1 to 4, the SR tab 2 is integrally formed with the cable body 1.
The third embodiment of the invention is as follows:
referring to fig. 1 to 5, a method for producing an SR cable includes the following steps:
(1) melting: a joint of the cable outer cover is coated with a meltable solvent;
(2) and (3) loading a mold: assembling an SR die at a joint coated with a meltable solvent outside a cable;
(3) injection molding: injecting an SR raw material into an SR mold, wherein the meltable solvent reacts with the joint of the cable jacket and the SR raw material respectively to realize injection molding;
(4) removing the mold: and disassembling the SR die to obtain a SR cable finished product.
Preferably, the cable is externally made of PVC material.
Preferably, the SR is made of PVC.
Preferably, the solvent is heptane;
preferably, the steps (1) to (4) are carried out at normal temperature.
Preferably, the inner diameter of the cable is 3.0mm, the minimum position of the SR cable outer diameter is 6mm, and the maximum position of the SR cable outer diameter is 8 mm.
Specifically, in the step (3), the cable outer coating is dissolved by the solvent and then is dissolved with the unsolidified SR raw material into a whole, and then cooling, drying and forming are carried out.
The SR cable produced by the SR cable production method comprises a cable body 1 and an SR connector 2, wherein the SR connector 2 is sleeved outside the cable body 1.
Referring to fig. 1 to 4, the SR tab 2 is integrally formed with the cable body 1.
In summary, according to the SR production method and the SR cable provided by the invention, the SR and the cable jacket form an integrated structure by adopting a way of dissolving PVC with a solvent, so that a copper buckle in the prior art is replaced, the production cost is reduced, the volume of the SR connector is reduced, the separation strength of the SR connector is greatly improved, the separation strength can reach 10kg, namely the maximum separation stress which can be borne by the SR connector is 10kg, the production process is simplified, the production efficiency is improved, and the SR cable has great industrial value.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (12)
1. A SR cable production method is characterized by comprising the following steps:
(1) melting: a joint of the cable outer cover is coated with a meltable solvent;
(2) and (3) loading a mold: assembling an SR die at a joint coated with a meltable solvent outside a cable;
(3) injection molding: injecting an SR raw material into an SR mold, wherein the meltable solvent reacts with the joint of the cable jacket and the SR raw material respectively to realize injection molding;
(4) removing the mold: and disassembling the SR die to obtain a SR cable finished product.
2. The SR cable production method of claim 1, wherein said cable jacket is PVC.
3. The method as claimed in claim 1, wherein the SR cable is made of PVC.
4. The SR cable production method of claim 1, wherein said solvent is acetone.
5. The SR cable production method of claim 1, wherein said solvent is methanol.
6. The SR cable production method of claim 1, wherein said solvent is heptane.
7. The SR cable production method of claim 1, wherein said SR outer diameter is at least 1mm greater than the cable.
8. The SR cable production method of claim 1, wherein said steps (1) - (4) are performed at normal temperature.
9. The SR cable production method of claim 1, wherein said cable outer diameter is 3.0mm, 3.5mm, or 4.5 mm.
10. The SR cable production method of claim 1, wherein the temperature of the SR mold in step (3) is 40-60 ℃.
11. The method for producing the SR cable as claimed in claim 1, wherein in said step (3), the cable is melted by the solvent and then integrated with the unsolidified SR raw material, and then cooled, dried and formed.
12. An SR cable produced by the method for producing SR cable according to any one of claims 1 to 10, comprising a cable body and an SR connector, wherein the SR connector is sleeved outside the cable body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155532.8A CN111431012A (en) | 2020-03-09 | 2020-03-09 | SR cable production method and SR cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155532.8A CN111431012A (en) | 2020-03-09 | 2020-03-09 | SR cable production method and SR cable |
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| Publication Number | Publication Date |
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| CN111431012A true CN111431012A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010155532.8A Pending CN111431012A (en) | 2020-03-09 | 2020-03-09 | SR cable production method and SR cable |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616557A (en) * | 2003-11-12 | 2005-05-18 | 张哲� | Quick adhesive for PVC cable soft wire |
| CN105295302A (en) * | 2015-10-21 | 2016-02-03 | 安徽亚南电缆厂 | High-temperature-resistant and ageing-resistant cable insulation layer |
| CN108148327A (en) * | 2018-03-08 | 2018-06-12 | 廊坊崔氏电缆材料有限公司 | PVC charging pile CABLE MATERIALSs and preparation method thereof |
-
2020
- 2020-03-09 CN CN202010155532.8A patent/CN111431012A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616557A (en) * | 2003-11-12 | 2005-05-18 | 张哲� | Quick adhesive for PVC cable soft wire |
| CN105295302A (en) * | 2015-10-21 | 2016-02-03 | 安徽亚南电缆厂 | High-temperature-resistant and ageing-resistant cable insulation layer |
| CN108148327A (en) * | 2018-03-08 | 2018-06-12 | 廊坊崔氏电缆材料有限公司 | PVC charging pile CABLE MATERIALSs and preparation method thereof |
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Application publication date: 20200717 |