CN114242312B - Spiral spring wire and preparation method thereof - Google Patents
Spiral spring wire and preparation method thereof Download PDFInfo
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- CN114242312B CN114242312B CN202111581167.8A CN202111581167A CN114242312B CN 114242312 B CN114242312 B CN 114242312B CN 202111581167 A CN202111581167 A CN 202111581167A CN 114242312 B CN114242312 B CN 114242312B
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- wire
- spring wire
- spiral
- spiral spring
- spiral coil
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- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 55
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling 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
- 238000011068 loading method 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
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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wire Processing (AREA)
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 directions of the outgoing lines are parallel to the axial directions of the spiral coil, and the projection of the axes 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, friction between the connection part 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 is adopted by the wire body, so that the spiral spring wire can be used in a narrow space.
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 the 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 with the spiral structure is generally used in a working environment with small space or a required change of the length of the cable, for example, a spring cable with the spiral structure is generally required 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 multi-turn spiral cable, which plays a role in adjusting a length, two ends of the multi-turn spiral cable are respectively provided with a straight lead-out wire, the lead-out wire is used for connecting an electronic component, the lead-out wire extends along a normal direction of the spiral cable, an angle of about 90 ° is formed between the lead-out wire and an axis of the spiral cable, and when the spring cable moves in the telescopic rod, a connection part of the spiral cable and the lead-out wire is easily rubbed with the inside of the telescopic rod, so that the cable is damaged.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a spiral spring wire and a preparation method thereof, and the structure of the connection part of the end part of the spiral wire and an outgoing line is changed, so that friction with a telescopic rod is avoided, and the service life is prolonged.
The invention is realized by the following technical scheme:
The utility model provides a spiral spring line, includes helical coil, helical coil's both ends are provided with the lead-out wire, and the axis of lead-out wire is parallel with helical coil's axis to the axis projection of lead-out wire is located helical coil's diameter range, and lead-out wire and helical coil's both ends smooth transitional coupling.
Preferably, the spiral coil and the outgoing line are flat wires, and the cross section of each flat wire is rectangular.
Preferably, the flat wire comprises a plurality of wire cores which are arranged in parallel, and an insulating layer which is 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 smaller than 0.1 mm.
Preferably, the insulating layer is made of TPU material, and the thickness of the insulating layer is greater than 1mm.
A method of making a coil spring wire comprising the steps of:
step 1, twisting a plurality of copper wires to form copper wires;
step 2, covering a PVC insulating layer on the copper wire obtained in the step 1, and cooling to obtain a wire core;
Step 3, covering TPU insulating layers on the plurality of wire cores, and cooling to obtain flat wires;
Step 4, winding the flat wire on a winding device according to a 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 an unreversed spiral spring wire;
And 7, reversing the non-reversed spiral spring wire obtained in the step 6 to obtain a compact spiral spring wire.
Preferably, the winding device in step 4 includes a winding rod, two ends of the winding rod are respectively sleeved with a fixer capable of moving along the axial direction of the winding rod, a wire slot 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 is further arranged on the winding rod and located outside the fixer.
Preferably, the fixing sleeve is a high-temperature-resistant magic tape.
Preferably, the fixing device is provided with a shaft hole which is sleeved on the winding rod, the fixing device is provided with a positioning screw, and the end part of the positioning screw is used for being abutted on the winding rod.
Compared with the prior art, the invention has the following beneficial technical effects:
According to the spiral spring wire, 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 directions of the spiral coil, and the projection of the axes 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 guaranteed to be the diameter of the spiral coil, friction between the connection part 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 is adopted by the wire body, so that the spiral spring wire can be used in a narrow space.
Drawings
FIG. 1 is a block diagram of a conventional spring wire;
FIG. 2 is a block diagram of a coil 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 spiral coil; 2. a lead-out wire; 3. winding a rod; 4. a holder; 5. a wire slot; 6. and (5) fixing the sleeve.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings, which illustrate but do not limit the invention.
Referring to fig. 2, a spiral spring wire comprises a spiral coil 1, wherein outgoing wires are arranged at two ends of the spiral coil 1, the axes of the outgoing wires are parallel to the axes of the spiral coil 1, the projection of the axes of the outgoing wires is located in the diameter range of the spiral coil 1, and the outgoing wires are in smooth transition connection with two ends of the spiral coil 1.
The spiral coil and the outgoing line are flat wires, and the cross section of each flat wire is rectangular. The flat wire comprises a plurality of wire cores which are arranged in parallel and an insulating layer which is coated on the outer layer, wherein the width of the wire cores is arranged along the axial direction of the spiral coil 1, and the thickness of the wire cores is arranged along the radial direction of the spiral coil 1.
Because the width direction of the flat wire comprises a plurality of wire cores which are arranged side by side and an insulating layer which is coated on the wire cores, and only one wire core and one insulating layer which is coated are arranged in the thickness direction, the width of the flat wire is at least smaller than the diameter of one wire core, the section of the flat wire forms a rectangular structure, and the thickness part of the flat wire is wound on a 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 adopted for winding, and the width part of the flat wire is wound on the winding rod. Therefore, the same winding rod is used for winding in the two modes, and 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 two core wires, so that the flat wire is used for saving more space.
The diameter of the wire core is smaller than 0.1mm, the wire is made of copper wires, the diameter is preferably 0.08mm, and the copper wires have excellent electrical conductivity, low resistivity, good thermal conductivity, high strength and good tensile property.
The insulating layer is TPU material, and the thickness of insulating layer is greater than 1mm. The TPU has excellent elasticity and wear resistance, ensures good wear resistance and good expansion performance of the spring wire, and prolongs the service life.
In another embodiment, the axis of the outgoing line is coaxial with the axis of the spiral coil 1, the end part of the spiral coil 1 is connected with a guide line, one end of the guide line is smoothly connected with the end part of the spiral coil 1, and the other end of the guide line extends to the center of the spiral coil 1 and is smoothly connected with the guide line.
According to the spiral spring wire, 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 directions of the spiral coil, and the projection of the axes 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 guaranteed to be the diameter of the spiral coil, friction between the connection part 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 is adopted by the wire body, so that the spiral spring wire can be used in a narrow space.
The following describes a method for producing a coil spring wire according to the present invention in detail, including the steps of:
Step 1, preparing a flat wire by adopting an extrusion process, wherein the specific method comprises the following steps:
s10, twisting a plurality of copper wires with the diameters of 0.08 together by using a special machine table to integrally form a stranded copper wire;
s11, pouring the material of the insulating layer into an oven for baking, wherein the baking temperature is 105+/-10 ℃ and the baking time is 2H;
Materials for the insulating layer include 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) mounting the first extrusion die to a 70-type extruder, setting the molding temperature, and coating a PVC layer on the copper wire to obtain the wire core after cooling.
The molding temperature includes a first stage 160+ -10deg.C, a second stage 165+ -10deg.C, a third stage 170+ -10deg.C, a fourth stage 175+ -10deg.C, a neck 170+ -10deg.C, a head 175+ -10deg.C and an eye mold 175+ -10deg.C.
S13, mounting a second extrusion die to a 90-type extruder, setting a molding temperature, coating TPU layers on the plurality of wire cores, and cooling to obtain flat wires;
The molding temperature comprises a first section 178+/-10 ℃, a second section 188+/-10 ℃, a third section 190+/-10 ℃, a fourth section 192+/-10 ℃, a neck 188+/-10 ℃, a machine head 188+/-10 and an eye mold 186+/-10 ℃.
Step2, winding the flat wire on a winding device according to a preset winding number of turns to form a spiral spring wire on the winding device;
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 along the axial direction of the winding rod, 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 positioned outside the fixer.
The distance between the two fixing devices 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 wires at the two ends of the flat wire are respectively arranged in the wire grooves of the fixing devices, the outgoing wires are parallel to the winding rod and are tightly attached to the winding rod, and then the outgoing wires are fixed through the fixing sleeve.
The fixing sleeve is a high-temperature-resistant magic tape.
Step 3, baking the winding device with the spiral spring wire;
And (3) fixing the spiral spring wire in the step (2) on a winding rod, sending the spiral spring wire into a constant-temperature oven for baking, setting the temperature of the oven to 120+/-10 ℃ and the baking time to 20+/-5 minutes, and forming the section of the outgoing wires at the two ends perpendicular to the coil of the spring wire after high-temperature baking and shaping, namely, leading out wires at the two ends in a straight line mode to be 180-degree outgoing wires.
Step 4, cooling the spiral spring wire baked in the step 3, and separating the spiral spring wire from the winding device to obtain an unreversed spiral spring wire;
And flushing cold water on the baked spiral spring wire and the baked winding rod, and drying the water on the spiral spring wire by using a strong air 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 (3) taking the spring wire cooled in the step (4) off the winding rod, and loading the spring wire on a reversing machine for reversing. The cooled spring wire is integrally reversed, so that the coils of the spring wire are tightly combined together, if the spring wire is not reversed, the whole spring wire is loose and collapses, after the spring wire is reversed, each coil which is originally provided with a certain tension is changed into reverse tension to be tightly overlapped, the spring wire is fully overlapped in a natural state, and the tension and the service life of the spring wire are increased after the spring wire is reversed.
The above is only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited by this, and any modification made on the basis of the technical scheme according to the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (6)
1. The spiral spring wire is characterized by comprising a spiral coil (1), wherein outgoing wires are arranged at two ends of the spiral coil (1), the axes of the outgoing wires are parallel to the axes of the spiral coil (1), the projection of the axes of the outgoing wires is positioned in the diameter range of the spiral coil (1), and the outgoing wires are in smooth transition connection with the two ends of the spiral coil (1);
The end part of the spiral coil (1) is connected with a guide wire, one end of the guide wire is smoothly connected with the end part of the spiral coil, and the other end of the guide wire extends to the circle center of the spiral coil and is smoothly connected with the guide wire;
the spiral coil and the outgoing line are flat wires, and the cross section of each flat wire is rectangular;
the preparation method of the spiral spring wire comprises the following steps:
step 1, twisting a plurality of copper wires to form copper wires;
step 2, covering a PVC insulating layer on the copper wire obtained in the step 1, and cooling to obtain a wire core;
Step 3, covering TPU insulating layers on the plurality of wire cores, and cooling to obtain flat wires;
Step 4, winding the flat wire on a winding device according to a preset winding number of turns to form a spiral spring wire on the winding device;
The winding device comprises a winding rod (3), wherein the two ends of the winding rod are respectively sleeved with a fixer (4) capable of moving along the axial direction of the winding rod, a wire groove (5) is arranged on the fixer, the wire groove 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 positioned outside the fixer;
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 an unreversed spiral spring wire;
And 7, reversing the non-reversed spiral spring wire obtained in the step 6 to obtain a compact spiral spring wire.
2. A spiral spring wire according to claim 1, characterized in that the flat wire comprises a plurality of cores arranged in parallel, and an insulating layer covering the cores, the width direction of the flat wire being arranged in the axial direction of the spiral coil (1).
3. A spiral spring wire according to claim 1, characterized in that the core has copper wire with a diameter of less than 0.1 mm.
4. A spiral spring wire according to claim 2, wherein the insulating layer is made of TPU, and the thickness of the insulating layer is greater than 1mm.
5. The coil spring wire of claim 1 wherein said retaining sleeve is a high temperature resistant velcro.
6. A spiral spring wire according to claim 4, wherein the holder is provided with a shaft hole for being sleeved on the winding rod, and the holder is provided with a set screw, and an end of the set screw is used for being abutted on the winding rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111581167.8A CN114242312B (en) | 2021-12-22 | 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 | 2021-12-22 | Spiral spring wire and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114242312A CN114242312A (en) | 2022-03-25 |
| CN114242312B true CN114242312B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111581167.8A Active CN114242312B (en) | 2021-12-22 | 2021-12-22 | Spiral spring wire and preparation method thereof |
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| Country | Link |
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| CN (1) | CN114242312B (en) |
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 |
-
2021
- 2021-12-22 CN CN202111581167.8A patent/CN114242312B/en active Active
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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| Publication number | Publication date |
|---|---|
| CN114242312A (en) | 2022-03-25 |
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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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