CN114242312A - Spiral spring wire and preparation method thereof - Google Patents
Spiral spring wire and preparation method thereof Download PDFInfo
- Publication number
- CN114242312A CN114242312A CN202111581167.8A CN202111581167A CN114242312A CN 114242312 A CN114242312 A CN 114242312A CN 202111581167 A CN202111581167 A CN 202111581167A CN 114242312 A CN114242312 A CN 114242312A
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- Prior art keywords
- wire
- spring wire
- spiral
- winding
- spiral spring
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- 238000002360 preparation method Methods 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 54
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 7
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/06—Extensible conductors or cables, e.g. self-coiling cords
- H01B7/065—Extensible conductors or cables, e.g. self-coiling cords having the shape of an helix
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Abstract
According to the spiral spring wire and the preparation method thereof, the outgoing lines are arranged at the two ends of the spiral coil, the axial direction of the outgoing lines is parallel to the axial direction of the spiral coil, and the axial projection of the outgoing lines is located in the diameter range of the spiral coil, so that the maximum diameter of the spiral spring wire is ensured to be the diameter of the spiral coil, the friction between the joint of the outgoing lines and the spiral coil and the inner wall of the telescopic rod is avoided in the length change process of the telescopic rod, the service life of the spiral spring wire is prolonged, and meanwhile, the flat wire body is adopted, so that the use of the spiral spring wire in a narrow space can be met.
Description
Technical Field
The invention relates to the technical field of cable design and manufacture, in particular to a spiral spring wire and a preparation method thereof.
Background
The cable is used as a main component for transmitting electric energy and control signals in an electronic product, and comprises a wire core and an insulating layer coated outside the wire core, the existing cable is generally in a linear structure or a spiral structure, the cable in the spiral structure is generally used in a working environment with small space or the length of the cable needing to be changed, for example, a spring cable in the spiral structure is generally needed in a telescopic rod of the electronic product, and the length of the cable is changed along with the length of the telescopic rod.
Referring to fig. 1, the spring cable includes a plurality of turns of spiral cables, which have a length adjusting function, two ends of the plurality of turns of spiral cables are respectively provided with linear outgoing lines, the outgoing lines are used for connecting electronic components, the outgoing lines extend along the normal direction of the spiral cable coil, about 90 degrees is formed between the outgoing lines and the axis of the spiral cable, when the spring cable moves in the telescopic rod, the connection between the spiral cable and the outgoing lines is easily rubbed with the inside of the telescopic rod, and the cable is damaged.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the spiral spring wire and the preparation method thereof, and the friction between the spiral spring wire and the telescopic rod is avoided and the service life is prolonged by changing the structure of the joint of the end part of the spiral cable and the outgoing line.
The invention is realized by the following technical scheme:
the utility model provides a helical spring line, includes the spiral coil, and the both ends of spiral coil are provided with the lead-out wire, and the axis of lead-out wire is parallel with the axis of spiral coil to the axis projection of lead-out wire is located the diameter range of spiral coil, and the lead-out wire is connected with the both ends smooth transition of spiral coil.
Preferably, the spiral coil and the outgoing line are both flat wires, and the cross section of each flat wire is rectangular.
Preferably, the flat wire comprises a plurality of wire cores arranged in parallel and an insulating layer coated on the wire cores, and the width direction of the flat wire is arranged along the axial direction of the spiral coil.
Preferably, the diameter of the wire core is less than 0.1mm of the copper wire.
Preferably, the insulating layer is made of TPU, and the thickness of the insulating layer is larger than 1 mm.
A method for preparing a helical spring wire comprises the following steps:
step 4, winding the flat wire on a winding device according to the preset winding number of turns to form a spiral spring wire on the winding device;
and 7, reversing the non-reversed spiral spring wire obtained in the step 6 to obtain a compact spiral spring wire.
Preferably, step 4 the winding device, including the winding rod, the both ends of winding rod are equipped with respectively the cover and are equipped with the fixer that can extend its axial displacement, are provided with the wire casing on the fixer, and the wire casing sets up and runs through the fixer along the axial of winding rod, still is provided with fixed cover on the winding rod and is located the outside of fixer.
Preferably, the fixing sleeve is a high-temperature resistant magic tape.
Preferably, the fixer is provided with a shaft hole for being sleeved on the winding rod, the fixer is provided with a positioning screw, and the end of the positioning screw is used for abutting against the winding rod.
Compared with the prior art, the invention has the following beneficial technical effects:
according to the spiral spring wire provided by the invention, the outgoing lines are arranged at the two ends of the spiral coil, the axial directions of the outgoing lines are parallel to the axial direction of the spiral coil, and the axial line projection of the outgoing lines is positioned in the diameter range of the spiral coil, so that the maximum diameter of the spiral spring wire is ensured to be the diameter of the spiral coil, the friction between the joint of the outgoing lines and the spiral coil and the inner wall of the telescopic rod is avoided in the length change process of the telescopic rod, the service life of the spiral spring wire is prolonged, and meanwhile, the flat wire body is adopted, so that the use of the spiral spring wire in a narrow space can be met.
Drawings
FIG. 1 is a diagram of a conventional spring wire;
FIG. 2 is a structural view of the helical spring wire of the present invention;
FIG. 3 is a schematic structural diagram of a winding device according to the present invention.
In the figure: 1. a helical coil; 2. an outgoing line; 3. winding the rod; 4. a holder; 5. a wire slot; 6. and (4) fixing sleeves.
Detailed Description
The present invention will now be described in further detail with reference to the attached drawings, which are illustrative, but not limiting, of the present invention.
Referring to fig. 2, the spiral spring wire comprises a spiral coil 1, wherein outgoing lines are arranged at two ends of the spiral coil 1, the axes of the outgoing lines are parallel to the axis of the spiral coil 1, the projection of the axes of the outgoing lines is located within the diameter range of the spiral coil 1, and the outgoing lines are connected with two ends of the spiral coil 1 in a smooth transition mode.
The spiral coil and the outgoing line are both flat wires, and the cross section of each flat wire is rectangular. The flat wire comprises a plurality of wire cores arranged in parallel and an insulating layer coated on the outer layer, the width of each wire core is arranged along the axial direction of the spiral coil 1, and the thickness of each wire core is arranged along the radial direction of the spiral coil 1.
Because the width direction of the flat wire comprises a plurality of side-by-side wire cores and the insulating layer coated on the wire cores, and only one wire core and the coated insulating layer are arranged in the thickness direction, the width of the flat wire is at least smaller than the thickness by the diameter of one core wire, the cross section of the flat wire forms a rectangular structure, and the thickness part of the flat wire is wound on the winding rod during winding. The diameter of the existing round wire is equal to the width of the flat wire, that is, the round wire is used for winding, and the width part of the flat wire is wound on the winding rod. Therefore, the same winding rod is wound by the two winding modes, the diameter of the spring wire coil wound by the flat wire is at least smaller than that of the spring wire coil wound by the round wire by the diameter of two core wires, and therefore the flat wire is used for saving more space.
The diameter of sinle silk is less than 0.1mm, and the material of wire is the copper line, and the diameter is preferred 0.08mm, and the copper line has excellent electric conductivity, and the resistivity is low, and the heat conductivity is good, and intensity is big and tensile nature is good.
The insulating layer is the TPU material, and the thickness of insulating layer is greater than 1 mm. The TPU has excellent elasticity and wear resistance, ensures good abrasion resistance and elasticity of the spring wire, and prolongs the service life.
In another embodiment, the axis of the leading-out wire is arranged coaxially with the axis of the spiral coil 1, the end of the spiral coil 1 is connected with a guide wire, one end of the guide wire is smoothly connected with the end of the spiral coil 1, and the other end of the guide wire extends to the center of the spiral coil 1 and is smoothly connected with the guide wire.
According to the spiral spring wire provided by the invention, the outgoing lines are arranged at the two ends of the spiral coil, the axial directions of the outgoing lines are parallel to the axial direction of the spiral coil, and the axial line projection of the outgoing lines is positioned in the diameter range of the spiral coil, so that the maximum diameter of the spiral spring wire is ensured to be the diameter of the spiral coil, the friction between the joint of the outgoing lines and the spiral coil and the inner wall of the telescopic rod is avoided in the length change process of the telescopic rod, the service life of the spiral spring wire is prolonged, and meanwhile, the flat wire body is adopted, so that the use of the spiral spring wire in a narrow space can be met.
The following describes in detail a method for manufacturing a helical spring wire according to the present invention, including the steps of:
s10, stranding a plurality of copper wires with the diameter of 0.08 together by using a special machine to form a stranded copper wire;
s11, pouring the material of the insulating layer into an oven to be baked, wherein the baking temperature is 105 +/-10 ℃, and the baking time is 2H;
the material of the insulating layer includes PVC and polyether TPU.
S12, covering a PVC insulating layer on the stranded copper wire obtained in the step 1 by using a 70-type extruder, and cooling to obtain a wire core;
and (3) installing the first extrusion die to a 70-type extrusion machine, setting the forming temperature, and cooling the copper wire coated with the PVC layer to obtain the wire core.
The molding temperature includes 160 + -10 ℃ for the first section, 165 + -10 ℃ for the second section, 170 + -10 ℃ for the third section, 175 + -10 ℃ for the fourth section, 170 + -10 ℃ for the neck, 175 + -10 ℃ for the nose and 175 + -10 ℃ for the eye mold.
S13, mounting the second extrusion die to a 90-type extrusion machine, setting the forming temperature, coating a TPU (thermoplastic polyurethane) layer on the plurality of wire cores, and cooling to obtain a flat wire;
the molding temperature includes 178 + -10 ℃ of the first section, 188 + -10 ℃ of the second section, 190 + -10 ℃ of the third section, 192 + -10 ℃ of the fourth section, 188 + -10 ℃ of the neck, 188 + -10 ℃ of the nose and 186 + -10 ℃ of the eye mold.
referring to fig. 3, a winding device comprises a winding rod 3, wherein two ends of the winding rod are respectively sleeved with a fixer 4 capable of moving axially, a wire slot 5 is arranged on the fixer, the wire slot is arranged along the axial direction of the winding rod and penetrates through the fixer, and a fixing sleeve 6 is further arranged on the winding rod 3 and located outside the fixer.
The distance between the two fixers is adjusted according to the length of the spiral coil during winding, then the flat wire is uniformly wound on the winding rod, the outgoing lines at the two ends of the flat wire are respectively arranged in the wire grooves of the fixers, the outgoing lines are parallel to the winding rod and tightly attached to the winding rod, and then the outgoing lines are fixed through the fixing sleeve.
The fixed cover is a high-temperature resistant magic tape.
and (3) fixing the spiral spring wire obtained in the step (2) on a winding rod, feeding the winding rod into a constant-temperature oven for baking, setting the temperature of the oven to be 120 +/-10 ℃ and the baking time to be 20 +/-5 minutes, and forming a section with two outgoing lines perpendicular to the coil of the spring wire after high-temperature baking and shaping, namely that the straight outgoing lines at two ends are outgoing lines at 180 degrees.
Step 4, cooling the spiral spring wire baked in the step 3, and separating the spiral spring wire from the winding device to obtain a non-reverse spiral spring wire;
and (4) flushing cold water into the baked spiral spring wire and the winding rod, and drying moisture on the spiral spring wire by using a strong wind fan until the spiral spring wire is completely cooled.
And 5, reversing the obtained non-reversed spiral spring wire by using a reversing machine to obtain a compact spiral spring wire.
And (4) taking the spring wire cooled in the step (4) off the winding rod, and mounting the spring wire on a reversing machine table again for reversing. The cooled spring wire is integrally reversed to tightly combine the coils of the spring wire together, if the spring wire is not reversed, the whole spring wire is loose, each coil with a certain tension originally after the reversal has reverse tension and can be tightly overlapped, the spring wire is completely overlapped under a natural state, and the tension and the service life of the spring wire are increased after the spring wire is reversed.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (9)
1. The spiral spring wire is characterized by comprising a spiral coil (1), outgoing lines are arranged at two ends of the spiral coil (1), the axes of the outgoing lines are parallel to the axis of the spiral coil (1), the axis projection of the outgoing lines is located in the diameter range of the spiral coil (1), and the outgoing lines are in smooth transition connection with two ends of the spiral coil (1).
2. A helical spring wire as set forth in claim 1 wherein the helical coil and the lead wire are flat wires having a rectangular cross-section.
3. A helical spring wire as claimed in claim 2, wherein the flat wire comprises a plurality of wire cores arranged in parallel, and an insulating layer coated on the wire cores, the width direction of the flat wire being arranged in the axial direction of the helical coil (1).
4. A helical spring wire as claimed in claim 3, wherein the core diameter is less than 0.1mm copper wire.
5. A helical spring wire as claimed in claim 3, wherein the insulating layer is TPU and has a thickness greater than 1 mm.
6. A method of manufacturing a helical spring wire as claimed in any one of claims 1 to 5, comprising the steps of:
step 1, stranding a plurality of copper wires to form a copper wire;
step 2, covering the copper wire obtained in the step 1 with a PVC insulating layer, and cooling to obtain a wire core;
step 3, covering a TPU insulating layer on the plurality of wire cores, and cooling to obtain a flat wire;
step 4, winding the flat wire on a winding device according to the preset winding number of turns to form a spiral spring wire on the winding device;
step 5, baking the winding device with the spiral spring wire;
step 6, cooling the spiral spring wire baked in the step 5, and separating the spiral spring wire from the winding device to obtain a non-reverse spiral spring wire;
and 7, reversing the non-reversed spiral spring wire obtained in the step 6 to obtain a compact spiral spring wire.
7. The method as claimed in claim 6, wherein the winding device of step 4 comprises a winding rod (3), the two ends of the winding rod are respectively sleeved with a fixing device (4) capable of moving along the axial direction of the winding rod, the fixing device is provided with a wire slot (5), the wire slot is arranged along the axial direction of the winding rod and penetrates through the fixing device, and the winding rod (3) is further provided with a fixing sleeve (6) and is located outside the fixing device.
8. The method for manufacturing a helical spring wire according to claim 7, wherein said fixing sleeve is a high temperature resistant velcro.
9. The method as claimed in claim 6, wherein the fixing member has a shaft hole for fitting over the winding rod, and a positioning screw having an end for abutting against the winding rod is provided on the fixing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581167.8A CN114242312B (en) | 2021-12-22 | Spiral spring wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581167.8A CN114242312B (en) | 2021-12-22 | Spiral spring wire and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114242312A true CN114242312A (en) | 2022-03-25 |
| CN114242312B CN114242312B (en) | 2024-04-26 |
Family
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2021593A1 (en) * | 1990-07-19 | 1992-01-20 | Arthur S. Halpenny | Halpen helix and ribbon cables |
| CN101855682A (en) * | 2007-10-02 | 2010-10-06 | 先锋磁体实验室有限公司 | Conductor assembly and methods of fabricating a conductor assembly |
| CN104319582A (en) * | 2014-11-07 | 2015-01-28 | 镇江中佳电器有限公司 | Anti-electromagnetic interference high-elasticity spiral cable connecting line |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2021593A1 (en) * | 1990-07-19 | 1992-01-20 | Arthur S. Halpenny | Halpen helix and ribbon cables |
| CN101855682A (en) * | 2007-10-02 | 2010-10-06 | 先锋磁体实验室有限公司 | Conductor assembly and methods of fabricating a conductor assembly |
| CN104319582A (en) * | 2014-11-07 | 2015-01-28 | 镇江中佳电器有限公司 | Anti-electromagnetic interference high-elasticity spiral cable connecting line |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20240401 Address after: No. 325 Yilong Road, Chang'an Town, Dongguan City, Guangdong Province, 523000 Applicant after: DONGGUAN NEW NAM LEE ELECTRICAL Co.,Ltd. Country or region after: China Address before: 523000 Hexi Industrial Zone, Jinxia village, Chang'an Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN NEW NAM LEE ELECTRICAL Co.,Ltd. Country or region before: China Applicant before: Guangxi Xinghui Electronic Co.,Ltd. |
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| GR01 | Patent grant |