CN114321519A - Reducing plastic hose and forming method - Google Patents
Reducing plastic hose and forming method Download PDFInfo
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- CN114321519A CN114321519A CN202011054915.2A CN202011054915A CN114321519A CN 114321519 A CN114321519 A CN 114321519A CN 202011054915 A CN202011054915 A CN 202011054915A CN 114321519 A CN114321519 A CN 114321519A
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- diameter
- plastic hose
- hose
- diameter section
- stretching
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000000465 moulding Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 239000000498 cooling water Substances 0.000 abstract description 23
- 238000003466 welding Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention discloses a reducing plastic hose and a forming method thereof. The reducing plastic hose is arranged in the electrode arm cooling channel, the small-diameter section of the reducing plastic hose is matched with the electrode arm welding end cooling channel, and the large-diameter section of the reducing plastic hose is matched with the electrode arm cooling water inlet end cooling channel. The reducing hose can be matched with a cooling channel structure of the electrode arm, so that the phenomenon that the two water pipes are separated from each other cannot occur in the using process, and the cooling effect of the electrode arm is greatly guaranteed.
Description
Technical Field
The invention relates to the technical field of plastic hoses for electrode arms, in particular to a variable-diameter plastic hose and a forming method thereof.
Background
The electrode arm applied to the resistance spot welding servo welding gun is mostly made of aluminum alloy materials, the welding gun needs to carry out internal water cooling on a welding position, an electrode rod and an electrode cap in the welding process, and all conductive contact surfaces inside the welding gun need to be subjected to water cooling. The principle of resistance welding is that the base metal is melted by the large current generated in the welding process, so that two or more layers of plates are welded together, the large current can generate a large amount of heat in the welding process, and the electrode arm needs to be cooled quickly after welding due to the rapid beat so as to prolong the service life of the electrode, so that a cooling water pipe needs to be arranged for water cooling of the electrode arm, and the cooling water can reach the welding parts of the electrode rod and the electrode cap.
The cooling water pipes of the existing motor arms generally adopt a sleeve bonding mode to match the size of the cooling water channel inside the electrode arm. Referring to FIG. 1, the diameter of the cooling water channel at the water inlet end of the electrode arm is
The diameter of a channel at one end of the cooling water outlet is
By using
Plastic hose and
the two parts are sleeved with each other,
plastic hose sleeve
The plastic soft periphery, two pipelines adopt the binder to bond.
The plastic hose has a matching diameter of
The cooling water passage(s) of (a),
plastic hose matching
Cooling water passage of (2) to ensure a certainInflow flow rate and return flow rate. The existing cooling water pipe can meet the requirement of flow velocity of inlet and outlet cooling water of the electrode arm, but the cooling water pipe formed by a sleeving and bonding mode is easy to separate two cooling water pipes in the using process, so that the cooling effect of the electrode arm is influenced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a reducing plastic hose and a forming method.
The technical scheme adopted by the invention is as follows:
the diameter-variable plastic hose is made of a plastic hose with an equal diameter by adopting a hot stretching process.
Furthermore, the reducing plastic hose comprises a large-diameter section and a small-diameter section, the diameter of the large-diameter section is equal to that of the hose before stretching, and the diameter of the small-diameter section is smaller than that of the hose before stretching.
Furthermore, the diameter of the large-diameter section of the reducing plastic hose is
The diameter of the small diameter section is
The forming method of any one of the reducing plastic hoses comprises the following steps:
1) inserting a forming rod with the outer diameter equal to the inner diameter of the reduced small-diameter section of pipe into one end of the plastic hose;
2) blowing one end of a plastic hose inserted into the forming rod by hot air to enable the plastic hose to reach the thermal deformation temperature;
3) inserting a fixed plastic hose into one end of the forming rod, and drawing and stretching the other end of the forming rod to enable the heated end to be drawn to be thin and enable the inner wall of the heated end to be tightly attached to the forming rod;
4) and cooling in a natural environment after the stretching is finished, and taking out the formed rod.
Furthermore, the traction force of traction and stretching is 3-6 MPa. The drawing is uneven when the traction force is too large, the drawing efficiency is low when the traction force is too small, the deformation is reduced after the drawing time is too long, and the forming quality is poor.
Furthermore, the temperature of hot air blowing is 130-190 ℃, and the time is 2-4 minutes. The plastic hose can achieve good deformation condition and good molding quality.
Further, the forming bar is made of a metal material. The forming rod is not deformed when heated, and the size of the deformed hose is ensured.
The invention has the beneficial effects that: compared with the prior art, the diameter-variable plastic hose is manufactured by stretching a plastic hose, is convenient to install and use when cold water is introduced into the electrode arm, does not cause the separation of two water pipes in the use process, and ensures the cooling effect of the electrode arm.
Drawings
Fig. 1 is a schematic structural view of an electrode arm of a conventional cooling water pipe adopting a sleeve structure.
FIG. 2 is a schematic view showing the structure of an electrode arm using a cooling water pipe of a tensile integrated structure according to the present invention.
Fig. 3 is a schematic structural diagram of the variable diameter plastic hose of the present invention.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
Example 1
Referring to fig. 2 and 3, the present embodiment provides a variable diameter plastic hose 30, wherein the variable diameter plastic hose 30 is made of a plastic hose with a constant diameter by a hot drawing process. The reducing plastic hose 30 comprises a large-diameter section 31 and a small-diameter section 32, the diameter of the large-diameter section 31 is equal to that of the hose before stretching, and the diameter of the small-diameter section is smaller than that of the hose before stretching. For example, in the present embodiment, the outer diameter of the large diameter section 31 is
An inner diameter of
The minor diameter section 32 has an outer diameter of
An inner diameter of
The reducing plastic hose 30 is used for a cooling water pipe of the electrode arm 1, and the diameter of a cooling water channel at the water inlet end of the electrode arm 10 is
The diameter of a channel at one end of the cooling water outlet is
The reducing hose 30 is inserted into the cooling channel of the electrode arm 10, the small diameter section 32 is matched with the cooling water outlet end channel of the electrode arm, and the large diameter section 31 is matched with the cooling water inlet end channel of the electrode arm. The passage of the electrode arm 10 into which the cooling water enters is sectioned to a diameter of
The circle of (a); the cross section of the cooling water outlet channel of the electrode arm 10 is welded at the end
The cooling water inlet end of the circular ring is
The ring of (2). A reducing hose can be matched with the cooling channel structure of the electrode arm, so that the cooling effect is ensured.
Example 2
The facility example provides a method for molding a variable diameter plastic hose as in example 1, which comprises the following steps:
1) will have an outer diameter of
The diameter of the brass rod inserted into the tube is
One end of the PVC plastic hose;
2) blowing one end of the plastic hose inserted into the forming rod by hot air at the temperature of 130-190 ℃ for about 2-4 minutes to enable the PVC plastic hose to reach the thermal deformation temperature of 80-100 ℃;
3) a fixed plastic hose is inserted into one end of the forming rod, and the other end of the forming rod is stretched by manual traction, so that the heated end is stretched to be thin, and the inner wall of the heated end is tightly attached to the forming rod;
4) and cooling for 3-6 minutes in a natural environment after stretching is finished, and taking out the forming rod after shaping.
The traction force of the traction and stretching is 3-6 MPa.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The diameter-variable plastic hose is characterized in that the diameter-variable plastic hose is made of an equal-diameter plastic hose by adopting a hot stretching process.
2. The reducing plastic hose coupling according to claim 1, wherein the reducing plastic hose comprises a large diameter section and a small diameter section, the diameter of the large diameter section is equal to that of the hose before stretching, and the diameter of the small diameter section is smaller than that of the hose before stretching.
3. The variable diameter plastic hose coupling according to claim 2, wherein the diameter of the large diameter section of the variable diameter plastic hose is equal to
The diameter of the small diameter section is
4. The method for forming the variable diameter plastic hose according to any one of claims 1 to 3, comprising the steps of:
1) inserting a forming rod with the outer diameter equal to the inner diameter of the reduced small-diameter section of pipe into one end of the plastic hose;
2) blowing one end of a plastic hose inserted into the forming rod by hot air to enable the plastic hose to reach the thermal deformation temperature;
3) inserting a fixed plastic hose into one end of the forming rod, and drawing and stretching the other end of the forming rod to enable the heated end to be drawn to be thin and enable the inner wall of the heated end to be tightly attached to the forming rod;
4) and cooling in a natural environment after the stretching is finished, and taking out the formed rod.
5. The molding method according to claim 4, wherein a traction force for the traction and stretching is 3 to 6 MPa.
6. The molding method according to claim 4, wherein the temperature of the hot air blowing is 130 to 190 ℃ and the time is 2 to 4 minutes.
7. The molding method according to claim 4, wherein the molding rod is made of a metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054915.2A CN114321519A (en) | 2020-09-28 | 2020-09-28 | Reducing plastic hose and forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011054915.2A CN114321519A (en) | 2020-09-28 | 2020-09-28 | Reducing plastic hose and forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114321519A true CN114321519A (en) | 2022-04-12 |
Family
ID=81011032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011054915.2A Pending CN114321519A (en) | 2020-09-28 | 2020-09-28 | Reducing plastic hose and forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114321519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091734A (en) * | 2022-05-13 | 2022-09-23 | 广东省科学院生物与医学工程研究所 | Preparation method of waveform flow channel polymer capillary tube and waveform flow channel polymer capillary tube |
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| JPH05147123A (en) * | 1991-11-28 | 1993-06-15 | Toyoda Gosei Co Ltd | Manufacture of bent hose |
| CN2342208Y (en) * | 1998-07-13 | 1999-10-06 | 于道生 | Slender thin wall metal variable diameter pipe for refrigerating circulation system |
| CN1751870A (en) * | 2005-09-09 | 2006-03-29 | 中国科学院长春应用化学研究所 | The preparation method of polyunsymfluorethylepiezoelectric piezoelectric tubes |
| CN101057997A (en) * | 2007-03-27 | 2007-10-24 | 董俊翀 | Multi-stage reducing flexible point dilator and processing method |
| CN101082269A (en) * | 2006-05-30 | 2007-12-05 | 天津钢管集团有限公司 | Petroleum annular tube reducer union and production process |
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| CN207455775U (en) * | 2016-05-09 | 2018-06-05 | 王树春 | A kind of full corrugated connecting tube |
| CN109318471A (en) * | 2018-10-27 | 2019-02-12 | 江阴标榜汽车部件股份有限公司 | A kind of straight tube attenuation process |
| CN209394190U (en) * | 2018-12-28 | 2019-09-17 | 南京点金焊业有限责任公司 | L-type electrode with cooling water dividing device |
| CN110315185A (en) * | 2018-03-28 | 2019-10-11 | 南京菲斯特焊接科技有限公司 | A kind of c-type electric resistance welding welding gun of embedded cooling water pipe |
| CN111672008A (en) * | 2020-05-28 | 2020-09-18 | 东莞科威医疗器械有限公司 | Medical variable-diameter intubation tube forming process and intubation tube |
-
2020
- 2020-09-28 CN CN202011054915.2A patent/CN114321519A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0182943A1 (en) * | 1984-11-22 | 1986-06-04 | Minoru Atake | Micro-pipette and device for its manufacture |
| JPH05147123A (en) * | 1991-11-28 | 1993-06-15 | Toyoda Gosei Co Ltd | Manufacture of bent hose |
| CN2342208Y (en) * | 1998-07-13 | 1999-10-06 | 于道生 | Slender thin wall metal variable diameter pipe for refrigerating circulation system |
| CN1751870A (en) * | 2005-09-09 | 2006-03-29 | 中国科学院长春应用化学研究所 | The preparation method of polyunsymfluorethylepiezoelectric piezoelectric tubes |
| CN101082269A (en) * | 2006-05-30 | 2007-12-05 | 天津钢管集团有限公司 | Petroleum annular tube reducer union and production process |
| CN101057997A (en) * | 2007-03-27 | 2007-10-24 | 董俊翀 | Multi-stage reducing flexible point dilator and processing method |
| CN101537436A (en) * | 2009-04-14 | 2009-09-23 | 四川泛华航空仪表电器厂 | Method for processing reducer pipe by integral cold drawing molding |
| CN201897015U (en) * | 2010-11-23 | 2011-07-13 | 安国来 | Expanding pipe |
| CN102358033A (en) * | 2011-06-16 | 2012-02-22 | 浙江拱东医疗科技有限公司 | Stretching forming device for local area of plastic tube |
| CN104848611A (en) * | 2015-05-11 | 2015-08-19 | 合肥锦利丰机械有限公司 | Capillary tube transition tube and preparation method thereof |
| CN207455775U (en) * | 2016-05-09 | 2018-06-05 | 王树春 | A kind of full corrugated connecting tube |
| CN205905414U (en) * | 2016-07-27 | 2017-01-25 | 上海翊科精密挤出技术有限公司 | Simple and easy medical catheter reducing device |
| CN107984766A (en) * | 2017-11-24 | 2018-05-04 | 苏州水博士建材科技有限公司 | A kind of direct production method of reducing |
| CN110315185A (en) * | 2018-03-28 | 2019-10-11 | 南京菲斯特焊接科技有限公司 | A kind of c-type electric resistance welding welding gun of embedded cooling water pipe |
| CN109318471A (en) * | 2018-10-27 | 2019-02-12 | 江阴标榜汽车部件股份有限公司 | A kind of straight tube attenuation process |
| CN209394190U (en) * | 2018-12-28 | 2019-09-17 | 南京点金焊业有限责任公司 | L-type electrode with cooling water dividing device |
| CN111672008A (en) * | 2020-05-28 | 2020-09-18 | 东莞科威医疗器械有限公司 | Medical variable-diameter intubation tube forming process and intubation tube |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091734A (en) * | 2022-05-13 | 2022-09-23 | 广东省科学院生物与医学工程研究所 | Preparation method of waveform flow channel polymer capillary tube and waveform flow channel polymer capillary tube |
| CN115091734B (en) * | 2022-05-13 | 2024-05-10 | 广东省科学院生物与医学工程研究所 | Preparation method of polymer capillary with wave-shaped flow channels and polymer capillary with wave-shaped flow channels |
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