CN114156805A - Unilateral-hole flat tube and preparation method thereof - Google Patents
Unilateral-hole flat tube and preparation method thereof Download PDFInfo
- Publication number
- CN114156805A CN114156805A CN202111533544.0A CN202111533544A CN114156805A CN 114156805 A CN114156805 A CN 114156805A CN 202111533544 A CN202111533544 A CN 202111533544A CN 114156805 A CN114156805 A CN 114156805A
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- Prior art keywords
- flat tube
- flat
- hole
- unilateral
- wire
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Links
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000001035 drying Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 5
- 210000002808 connective tissue Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0487—Tubings, i.e. having a closed section with a non-circular cross-section
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a single-side-hole flat tube and a preparation method thereof, wherein the single-side-hole flat tube comprises a flat band, one side of the flat band is a wire bunching area, the other side of the flat band is a fixing area, a plurality of wire holes are arranged at intervals in the wire bunching area, control wires are respectively penetrated in the wire holes to protect the control wires, the insulation protection of the wires is strengthened, then the flat band is fixed in the fixing area through screws, the wires are fixed under constraint, the installation is more convenient, the problem that the wires are damaged due to the dislocation of the screws is avoided because the constraint area and the fixing area are arranged on two sides, the attractiveness of the control wires is improved, and the flat band is convenient to maintain.
Description
Technical Field
The invention relates to the technical field of cable design and manufacture, in particular to a unilateral hole flat tube and a preparation method thereof.
Background
The cable carries out circuit conduction and signal transmission's effect among mechanical equipment and the electronic equipment, though the outer cladding of wire has insulating protective layer, in order to improve the life of cable, but easy wearing and tearing lead to the insulating destruction, especially damage more in some moving parts, secondly, because cable is in a large number in the equipment, and the wire is not in disorder very much with the constraint, the card is hung easily, work efficiency is low, the wire is probably touched occasionally to the follow-up equipment installation screw of equipment, destroy the wire insulating layer, also possible break the wire, can cause the short circuit to have the conflagration hidden danger, the degree of difficulty of maintaining has also been increased simultaneously.
In view of the above, it is necessary to design a cable protection device to improve the life of the cable and avoid the problem of disordered wiring.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a unilateral-hole flat tube, a preparation method and a die.
The invention is realized by the following technical scheme:
the utility model provides a unilateral hole flat tube, includes the bandlet, and its one side is the bunch district, and the opposite side is the fixed area, the inside in bandlet district is provided with the line hole, and the axial of line hole sets up and runs through the bandlet along the extending direction of bandlet.
Preferably, the number of the string holes is multiple, and the string holes are arranged at intervals from one side to the other side of the flat belt.
Preferably, the top corners of the flat belts are provided with chamfers.
Preferably, the top surface of the flat belt and the area of the top surface, which faces the wire holes, are corrugated surfaces for marking the positions of the wire holes.
Preferably, the number of the string holes is multiple, and the string holes are arranged at intervals along the width direction of the flat belt.
A preparation method of a unilateral hole flat tube comprises the following steps:
and 5, cutting the cooled unilateral-hole flat tube into a preset length.
Preferably, in the step 1, the drying temperature is 80-120 ℃, and the drying time is 2-3 hours.
Preferably, a water cooling mode is adopted in the step 4 to cool the single-side-hole flat tube, the temperature of the first-section water tank is 75-85 ℃, and the water temperature is reduced section by section until the temperature reaches the room temperature.
Preferably, the mould comprises an outer mould, an inner mould and a pressure pipe;
the outer mould is one end open-ended hollow structure, and the blind end of outer mould is provided with the product export, and the inside of centre form is provided with the air flue, and the entry of air flue is located the one end of centre form, and hollow pressure pipe setting is on the terminal surface of the centre form other end, and the tip of pressure pipe passes terminal surface and air flue intercommunication, and the coaxial empty cover of outer mould is outside the inner mould, and the free end of pressure pipe stretches out the product export, and the space that forms between outer mould and the centre form is for advancing gluey mouth.
Preferably, the number of pressure tubes is the same as the number of string holes of the flat tube.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a single-side-hole flat tube which comprises a flat belt, wherein one side of the flat belt is a wire bunching area, the other side of the flat belt is a fixing area, a plurality of wire holes are formed in the wire bunching area at intervals, control wires are respectively penetrated in the wire holes to protect the wire bunching area, the insulation protection of the wires is enhanced, then the flat belt is fixed in the fixing area through screws, the wires are fixed under constraint, the installation is more convenient, the problem that the wires are damaged due to the fact that the screws are installed in a staggered mode is avoided due to the fact that the constraint area and the fixing area are located on the two sides, meanwhile, the attractiveness of the control wires is improved, and maintenance is facilitated.
Drawings
FIG. 1 is a schematic view of a unilateral bore flat tube of the present invention;
FIG. 2 is an end view of a single-port flat tube according to the present invention;
FIG. 3 is a schematic structural view of the inner mold of the present invention;
FIG. 4 is a schematic structural diagram of the internal mold airway of the present invention;
FIG. 5 is a schematic structural view of an outer mold of the present invention;
FIG. 6 is a cross-sectional view of the inventive die;
fig. 7 is a schematic structural view of the assembled state of the mold of the present invention.
In the figure: 1. a flat belt; 2. a wire hole; 3. an inner mold; 4. a pressure pipe; 5. a fixing ring; 6. an outer mold; 7. a product outlet; 8. an airway; 9. and a glue inlet.
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. 1 and 2, the unilateral-hole flat tube comprises a flat belt 1 and a line hole 2 arranged in the flat belt 1, wherein the axis of the line hole is arranged along the extending direction of the flat belt 1 and penetrates through the flat belt, and the line hole and the installation area of the flat belt are positioned on two sides of the flat belt.
The number of line holes is at least one, and when the number of line holes was a plurality of, a plurality of line holes were arranged along one side of bandlet to the opposite side interval, need guarantee simultaneously that the line hole does not coincide with the installing zone of bandlet, avoided causing the destruction to the line hole in the installation.
The apex angle of bandlet all is provided with the chamfer, avoids the bandlet apex angle to cause because of stress concentration and tears to the life of extension bandlet.
The flat belt mounting area is characterized in that the area, right facing the wire hole, of the top surface of the flat belt and the top surface of the flat belt are corrugated surfaces, the position of the wire hole is marked, the edge of one side of the flat belt mounting area is arc-shaped, a structure different from the other side is formed, error-proofing structures are formed on two sides of the flat belt, and damage to a wire caused by the fact that a bolt penetrates through the wire hole in the mounting process is avoided.
This unilateral hole flat tube sets up the quantity of line hole according to specific demand, has consequently reduced the volume of flat tube, less manufacturing cost, flat area adopts the TPU material to make, makes corresponding line hole according to wire quantity, preferably three line holes that the interval set up.
Use the air bag of car seat installation as an example, control scheme needs to protect with the spool, control scheme needs 3 lines, one side of bandlet is the bunch district, the opposite side is the fixed area, it sets up 3 line holes to distinguish at the bunch, wear 3 control lines respectively and protect it in the line hole, wire insulation protection is strengthened, then fix the bandlet through the screw at the fixed area, the wire is fixed under the constraint, it is more convenient to install, because the constraint district is located both sides with the fixed area, also avoid the problem that the screw installation dislocation caused the wire to damage.
A preparation method of a unilateral hole flat tube comprises the following steps:
and step 1, drying the TPU granules.
Because TPU has the moisture absorption characteristic, TPU particles need to be dried, and the problem that the surfaces of extruded products have bulged bubbles or the cross sections of the products have cavities is avoided. The drying temperature is 80-120 ℃, and the drying time is 2-3 hours.
For example, the hopper type drying temperature is 80-110 ℃, and the drying time is 3 hours; drying in an oven at 90-120 ℃ for 2 hours; also for TPU's with a slightly softer hardness, e.g.below 80A, it is recommended that the drying temperature is below 80 ℃ to prevent agglomeration of the TPU during drying.
And 2, adding the dried TPU particles into an extruder for hot melting, wherein the melt temperature is 170-225 ℃. In the temperature range, the yield is improved, and the loss of raw materials is reduced.
The hot melting temperature is related to the size of the product, the extrusion temperature can be correspondingly increased for the product with small size, the temperature has great influence on the luster of the product, the luster is increased by increasing the temperature, and the temperature of the die opening area can be correspondingly reduced compared with the simple body, so that the melt strength can be improved to ensure the extrusion stability.
The temperature of the extruder die head is 170-190 ℃, the front region is 180-200 ℃, and the middle region is 180-; the back zone 160 ℃ and 180 ℃.
And 3, setting extrusion parameters of the extruder, and extruding the molten TPU material into a die to obtain the single-side-hole flat tube.
And 4, cooling the unilaterally-perforated flat tube obtained in the step 3 to obtain the cooled unilaterally-perforated flat tube.
And cooling the single-side-hole flat tube by adopting a water cooling mode, and gradually reducing the water temperature from the 75 ℃ to 85 ℃ temperature of the first section of water tank to the room temperature, wherein the smaller the temperature difference of the water temperature of each section is, the more reasonable the temperature difference is.
And 5, cutting the cooled unilateral-hole flat tube into a preset length.
The utility model provides a unilateral hole flat tube's mould, includes external mold 6, centre form 3 and pressure pipe 4, and external mold 6 is one end open-ended hollow structure, and the blind end of external mold is provided with product export 7, and the shape of product export 7 is the same with the cross-section appearance of flat tube, and the inside of centre form 3 is provided with the air flue, and the entry of air flue 8 is located the one end of centre form, and hollow pressure pipe 4 sets up on the terminal surface of the centre form other end to axial setting along the centre form, the tip of pressure pipe passes terminal surface and air flue intercommunication, the quantity of pressure pipe is the same with the line hole quantity of flat tube, and the external mold is outside including the cover empty, and the free end of pressure pipe stretches out product export 7, and the space that forms between external mold and the centre form is for advancing jiao kou 9, and the open end of centre form is provided with and is used for the solid fixed ring 5 who is connected with the extruder.
The adventitia is connected with the aircraft nose of extruder respectively with the centre form, and the air flue of centre form is connected with the venthole of atmospheric pressure management and control device, and the screw rod through extrusion machine behind the micelle hot melt is rotated and is extruded to aircraft nose position, then gets into between centre form and the external mold from advancing jiao kou between centre form and the adventitia, and the sizing material is extruded from the product export, forms flat area, and gaseous giving vent to anger from the pressure tube simultaneously to guarantee that the through wires hole can not block up, and the size is in the specified size.
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 (10)
1. The single-side-hole flat tube is characterized by comprising a flat belt (1), wherein one side of the flat belt (1) is a wire harness area, the other side of the flat belt is a fixing area, a wire hole (2) is formed in the flat belt wire harness area, and the axial direction of the wire hole is arranged along the extension direction of the flat belt (1) and penetrates through the flat belt.
2. A single-sided flat tube according to claim 1 wherein the number of the wire holes is plural and the plural wire holes are spaced from one side of the flat band to the other.
3. A single-port flat tube according to claim 1 wherein the flat belts are chamfered at the top corners thereof.
4. A single-sided bore flat tube according to claim 1 wherein the regions of the flat band top and top surfaces facing the line holes are corrugated surfaces for identifying the location of the line holes.
5. A single-sided bore flat tube according to claim 1 wherein the number of the line holes is plural, and the plural line holes are provided at intervals in the width direction of the flat band.
6. A method of producing a single-port flat tube according to any one of claims 1 to 5, comprising the steps of:
step 1, drying TPU particles;
step 2, adding the dried TPU particles into an extruder for hot melting, wherein the melt temperature is 170-225 ℃;
step 3, setting extrusion parameters of an extruder, and extruding the molten TPU material into a die to obtain a single-side-hole flat tube;
step 4, cooling the unilaterally perforated flat tube obtained in the step 3 to obtain a cooled unilaterally perforated flat tube;
and 5, cutting the cooled unilateral-hole flat tube into a preset length.
7. The method of manufacturing a unilateral hole flat tube according to claim 6, wherein the drying temperature in step 1 is 80 to 120 ℃ and the drying time is 2 to 3 hours.
8. The method for preparing the unilateral-hole flat tube according to claim 6, wherein the unilateral-hole flat tube is cooled by water cooling in the step 4, the temperature of the first-stage water tank is 75-85 ℃, and the water temperature is reduced to room temperature section by section.
9. The method of producing a unilateral hole flat tube according to claim 6, wherein the mold comprises an outer mold (6), an inner mold (3), and a pressure tube (4);
external mold (6) are one end open-ended hollow structure, and the blind end of external mold is provided with product export (7), and the inside of centre form (3) is provided with the air flue, and the entry of air flue (8) is located the one end of centre form, and hollow pressure pipe (4) set up on the terminal surface of the centre form other end, and the tip of pressure pipe passes terminal surface and air flue intercommunication, and the external mold is outside including the coaxial empty cover of external mold, and the free end of pressure pipe stretches out product export (7), and the space that forms between external mold and the centre form is for advancing jiao kou (9).
10. A method of producing a single-port flat tube as claimed in claim 9 wherein the number of said pressure tubes is the same as the number of said port holes of the flat tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533544.0A CN114156805B (en) | 2021-12-15 | 2021-12-15 | Unilateral hole flat tube and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533544.0A CN114156805B (en) | 2021-12-15 | 2021-12-15 | Unilateral hole flat tube and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114156805A true CN114156805A (en) | 2022-03-08 |
| CN114156805B CN114156805B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111533544.0A Active CN114156805B (en) | 2021-12-15 | 2021-12-15 | Unilateral hole flat tube and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN114156805B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807062A (en) * | 2006-02-08 | 2006-07-26 | 扬中市星鑫工程管道厂 | Preparation method of modified ultrahigh molecular weight polyethylene powder direct extruded tubing |
| CN209766064U (en) * | 2019-06-13 | 2019-12-10 | 江苏宇航特种线缆有限公司 | Flexible cable with strong bending resistance |
| CN211719325U (en) * | 2020-03-22 | 2020-10-20 | 海悦电缆制造有限公司 | Parallel multi-strand control cable of symmetrical flat cable |
| CN212230110U (en) * | 2020-07-05 | 2020-12-25 | 重庆市鹤林电子材料有限公司 | Corrosion-resistant glass fiber wire harness device |
-
2021
- 2021-12-15 CN CN202111533544.0A patent/CN114156805B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1807062A (en) * | 2006-02-08 | 2006-07-26 | 扬中市星鑫工程管道厂 | Preparation method of modified ultrahigh molecular weight polyethylene powder direct extruded tubing |
| CN209766064U (en) * | 2019-06-13 | 2019-12-10 | 江苏宇航特种线缆有限公司 | Flexible cable with strong bending resistance |
| CN211719325U (en) * | 2020-03-22 | 2020-10-20 | 海悦电缆制造有限公司 | Parallel multi-strand control cable of symmetrical flat cable |
| CN212230110U (en) * | 2020-07-05 | 2020-12-25 | 重庆市鹤林电子材料有限公司 | Corrosion-resistant glass fiber wire harness device |
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| Publication number | Publication date |
|---|---|
| CN114156805B (en) | 2024-05-10 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20240416 Address after: 523000 Hexi Industrial Zone, Jinxia village, Chang'an Town, Dongguan City, Guangdong Province 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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