CN115502261A - Evaporating pipe winding method and evaporating pipe winding equipment - Google Patents
Evaporating pipe winding method and evaporating pipe winding equipment Download PDFInfo
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- CN115502261A CN115502261A CN202110692958.1A CN202110692958A CN115502261A CN 115502261 A CN115502261 A CN 115502261A CN 202110692958 A CN202110692958 A CN 202110692958A CN 115502261 A CN115502261 A CN 115502261A
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- inner container
- winding
- evaporation tube
- evaporating
- liner
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- 238000001704 evaporation Methods 0.000 title claims abstract description 96
- 238000004804 winding Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000008020 evaporation Effects 0.000 claims abstract description 56
- 230000008569 process Effects 0.000 claims abstract description 15
- 239000002390 adhesive tape Substances 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 208000027418 Wounds and injury Diseases 0.000 description 12
- 230000006872 improvement Effects 0.000 description 9
- 230000007246 mechanism Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides an evaporation tube winding method and an evaporation tube winding device, wherein the evaporation tube winding method mainly comprises the steps of sleeving an inner container on a mold; fixing the free end of the evaporation tube to the set position of the inner container; and winding the liner, wherein when the evaporation tube is wound to the middle area of the side wall, the liner is controlled to rotate at a first rotating speed, when the evaporation tube is wound to the connecting area of the adjacent side wall, the liner is controlled to rotate at a second rotating speed, and the second rotating speed is less than the first rotating speed. According to the evaporation tube winding method and the evaporation tube winding equipment, the process of winding the liner is optimally designed, so that the phenomenon that the connecting area of the adjacent side walls is in a flash joint or is in a strange mark can be well avoided, and the production efficiency and the product quality are improved.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment production, in particular to an evaporation tube winding method and evaporation tube winding equipment.
Background
In the production process of direct-cooling refrigerators and freezers, the evaporating pipe is usually required to be wound on the outer surface of the inner container in a set mode. The manual liner winding efficiency is low, and the product quality and stability are difficult to ensure; the method for winding the evaporating tube mainly adopted in the industry at present is to arrange a set die on a rotatable workbench and sleeve the formed inner container on the die; the mould is controlled to stretch to realize the top bracing of the inner container, and the mould and the inner container are driven to rotate by the driving mechanism to complete the winding of the evaporation tube; after the liner winding is completed, the control mold shrinks to take down the liner.
In the actual processing process, in order to ensure that the evaporator is tightly attached to the outer surface of the inner container, the mechanical arm is required to extrude the evaporation tube to the outer side of the inner container. The inner container is in the process of rotating along with the mold, and flash seams or strangulation easily occur at the corners of the inner container due to insufficient supporting strength and large stress. In the industry, the above problems are generally solved by adding corner protectors (PP hollow plates) on four edges outside the inner container, but the material cost is increased, and the refrigeration effect of subsequent products is also affected.
In view of the above, it is desirable to provide a new method and apparatus for winding an evaporation tube.
Disclosure of Invention
The invention aims to provide an evaporation tube winding method and evaporation tube winding equipment, which can reduce the abnormality of flash seams, tightening marks and the like and improve the product quality.
In order to achieve the above object, the present invention provides a method for winding an evaporation tube, which mainly comprises:
sleeving an inner container on a mold, wherein the inner container is provided with a plurality of side walls which are connected in sequence;
fixing the free end of the evaporation tube to the set position of the inner container;
and the inner container is wound, when the evaporation tube is wound to the middle area of the side wall, the inner container is controlled to rotate at a first rotating speed, when the evaporation tube is wound to the connecting area of the adjacent side wall, the inner container is controlled to rotate at a second rotating speed, and the second rotating speed is less than the first rotating speed.
As a further improvement of the invention, the winding method of the evaporation tube also comprises the step of detecting the real-time position of the inner container in the process of winding the inner container.
As a further improvement of the invention, the first rotational speed is set to 16 to 18 revolutions per minute.
As a further improvement of the invention, the second rotational speed is set to 12 to 15 revolutions per minute.
As a further improvement of the invention, the winding method of the evaporation tube further comprises pulling an adhesive tape, wherein the adhesive tape corresponds to the circumferential position of the evaporation tube to be wound, and in the step of winding the liner, the adhesive tape is used for sticking and fixing the evaporation tube on the outer surface of the liner.
As a further improvement of the invention, the winding method of the evaporation tube further comprises the steps of mounting the mold on a rotatable workbench, confirming that the mold is in a contraction state, and sleeving the inner container on the mold; after the step of sleeving the inner container on the mold is completed, the mold is controlled to be changed from a contraction state to an expansion state, so that the mold is abutted against the inner surface of the inner container.
As a further improvement of the invention, the winding method of the evaporating pipe also comprises the step of moving a mechanical arm to press the evaporating pipe to be wound against the outer surface of the inner container.
As a further improvement of the invention, the step of winding the liner further comprises the step of controlling the liner and the evaporation tube to be wound to relatively move along the height direction, wherein the height direction is vertical to the rotation direction of the liner.
The invention also provides evaporating pipe winding equipment for the evaporating pipe winding method, which comprises a rotatable workbench, a mechanical arm for pressing the evaporating pipe to be wound to the outer surface of the inner container and a detection device for detecting the real-time position of the inner container.
As a further improvement of the present invention, the detection device includes a laser transmitter and a laser receiver, and the laser transmitter is mounted on the mechanical arm and is used for transmitting a predetermined laser beam to the inner container.
The invention has the beneficial effects that: by adopting the evaporation tube winding method and the evaporation tube winding equipment, the liner winding process of different areas of the liner is optimally designed, so that the phenomena of flash seams and strange marks in the connecting area, namely the corner position, of the adjacent side walls can be better avoided, the production efficiency and the product quality are improved, and the method and the equipment are easy to implement on site.
Drawings
FIG. 1 is a schematic view of the main flow of the method for winding an evaporating tube according to the present invention;
FIG. 2 is a schematic view of the step of winding the bladder in accordance with a preferred embodiment of the present invention;
FIG. 3 is a schematic view showing the state of the inner container of the method for winding the evaporating tubes in the middle area when the evaporating tubes are wound;
FIG. 4 is a schematic view showing the state of the inner container of the method for winding the evaporating tubes in the connecting area.
101-a robotic arm; 102-a detection device; 200-a mold; 201-side wall.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiment, and structural, methodological, or functional changes made by one of ordinary skill in the art according to the embodiment are included in the scope of the present invention.
The method and the equipment for winding the evaporating pipe are used for producing and processing refrigerating equipment such as a refrigerator, an ice chest and the like. Referring to fig. 1 to 4, the evaporating tube winding apparatus includes a rotatable table, a mechanical arm 101 for pressing the evaporating tube to be wound against the outer surface of the inner container 200, and a detecting device 102 for detecting the real-time position of the inner container 200.
In this embodiment, the detection device 102 includes a laser emitter and a laser receiver, and the laser emitter is mounted on the mechanical arm 101 and is used for emitting a predetermined laser beam to the liner 200; the laser receiver is configured to receive the laser beam reflected from the outer surface of the inner container 200. It should be noted that the laser receiver and the excitation light emitter can be integrated and disposed at one position, or can be disposed independently.
The winding method of the evaporation tube comprises the following steps:
mounting the mold to a rotatable table;
confirming that the mold is in a shrinkage state;
sleeving an inner container 200 on a mold, wherein the inner container 200 is provided with a plurality of side walls 201 which are connected in sequence;
controlling the mould to change from a contraction state to an expansion state, wherein the mould is abutted with the inner surface of the inner container 200;
fixing the free end of the evaporation tube to a predetermined position of the inner container 200;
twining the courage, when the evaporating pipe twines the middle zone to lateral wall 201, control inner bag 200 is rotatory according to first rotational speed, when the evaporating pipe twines the linking area to adjacent lateral wall 201, control inner bag 200 is rotatory according to the second rotational speed, the second rotational speed is less than first rotational speed.
Here, the inner container 200 is rectangular, and has four side walls 201 connected in sequence in the rotation direction, and the joint of two adjacent side walls 201 is usually further provided with a chamfer. The middle region refers to a region of the side wall 201 away from the front and rear edges in the rotational direction; the connection region is an area of the sidewall 201 close to another adjacent sidewall 201, i.e. a corner region (see the dashed circle in fig. 3). Generally, the contact effect and the supporting strength of the mold to the connection region are poor; and the evaporation tube is bent and deformed at the connecting area, and the inner container 200 is more seriously extruded, so that the connecting area is easily damaged in the process of winding the inner container. The method for winding the evaporation tube is a research improvement aiming at the liner winding process of the connecting area, and effectively reduces the defects of strange marks, flash seams and the like of the liner 200 at the corner position by reducing the rotating speed of the liner 200 when the liner is wound at the connecting area.
The worktable is generally horizontally arranged and driven by a driving source to rotate at a set rotating speed, and the worktable can be understood as a base for mounting the die; the die is fixed on the workbench along the height direction; the step of sleeving the inner container 200 on the mold refers to that the inner container 200 is sleeved on the mold with an opening downward in the height direction, and the inner container 200 and the mold rotate synchronously with the workbench. The mould comprises at least two supporting modules and a driving mechanism for driving the supporting modules to move, and when the at least two supporting modules are close to each other, the mould is in a contraction state; when the at least two supporting modules are far away from each other, the mold is in an expansion state. When the mold is in an expansion state, at least two support modules support at least part of the inner surface of the inner container 200.
The support modules can be arranged into two, the mold structure is the simplest, but the two opposite side walls 201 of the inner container 200 can be effectively supported, and the other two side walls 201 inevitably have gaps with the mold, so that the support strength is insufficient. The number of the supporting modules can be four, the four supporting modules move simultaneously under the driving of the driving mechanism, the switching of the mold between the contraction state and the expansion state is realized, at the moment, the mold can better support the side walls 201 of the liner 200, and the expansion stroke of the mold in different directions is difficult to adjust. Particularly, the mold can be used for supporting two groups of side walls 201 oppositely arranged in the inner container 200 along different directions, that is, the expansion strokes of the mold in different directions can be adjusted according to actual requirements, so that the side walls 201 are supported more stably, and subsequent liner winding processing is facilitated.
The forming process of the liner 200 inevitably has errors, that is, under the condition that the extension stroke of the mold is not changed, the support stress and the strength actually born by different liners 200 of the same specification are different. Therefore, a pressure sensor can be disposed on at least one of the support modules of the mold, so as to sense the supporting force borne by the liner 200 in real time. The step of controlling the mold to change from the contraction state to the expansion state specifically comprises the step of comparing the real-time pressure fed back by the pressure sensor with a set pressure threshold, and when the real-time pressure reaches the pressure threshold, the driving mechanism is controlled to be closed, and the mold is switched to the expansion state.
According to field verification, the probability of the abnormal winding of the liner in the connecting area is directly related to the rotating speed of the liner 200, and the higher the rotating speed is, the higher the abnormal risk is. Here, the rotation speed when the bladder is wound at the connection region is reduced, and the first rotation speed is preferably set to 16 to 18 revolutions per minute, taking into consideration the overall process duration of the bladder winding process; the second rotation speed is preferably set to 12 to 15 revolutions per minute.
The winding method of the evaporating pipe also comprises the step of moving the mechanical arm 101 to press the evaporating pipe to be wound against the outer surface of the inner container 200. The tail end of the mechanical arm 101 is generally provided with a pressing wheel for pressing the evaporation tube, the evaporation tube is better attached to the inner container 200 through pressing of the pressing wheel, and the pressing wheel can limit the evaporation tube in the height direction to a certain degree. Besides, the winding method of the evaporation tube further comprises the step of pulling an adhesive tape, wherein the free end of the adhesive tape is adhered to the inner container 200 and is positioned on the rear side of the evaporation tube along the rotation direction, and the adhesive tape corresponds to the circumferential position of the evaporation tube to be wound. In the step of winding the liner, the evaporation tube is wound to be close to the outer surface of the liner 200, and then the evaporation tube is adhered and fixed on the liner 200 by the adhesive tape.
The method for winding the evaporation tube further comprises the step of detecting the real-time position of the inner container 200 in the process of winding the inner container. That is, in the process of winding the liner, the real-time position of the liner 200 is detected, and then the rotating speed of the liner 200 is controlled and adjusted according to the real-time position information of the liner 200. In this embodiment, the laser emitter on the mechanical arm 101 emits a laser beam to the liner 200, and when the liner 200 rotates to a position where the middle area of one sidewall 201 of the liner corresponds to the mechanical arm 101, the laser receiver can receive the laser beam reflected by the outer surface of the liner 200, and determine that the evaporation tube is wound around the middle area of the sidewall 201; when the inner container 200 rotates to a position where the mechanical arm 101 is close to a corner, the laser beam irradiates the other adjacent side wall 201 of the inner container 200, and the laser receiver cannot receive a corresponding reflection signal, and determines that the evaporation tube is wound on a connection area of the adjacent side wall 201. It should be noted that the extension length of the intermediate region and the connecting region in the rotation direction may be adjusted and determined according to the specification of the inner container 200, the supporting performance of the mold, and the like.
In another embodiment of the present application, when the predetermined position where the inner container 200 and the evaporation tube are initially fixed is determined, information such as the size and the predetermined position of the inner container 200 may be input to a control system of the evaporation tube winding apparatus in advance to form a corresponding processing program. In the step of winding the liner, the worktable may rotate according to the processing program, so that when the liner is wound in the middle region of the sidewall 201, the worktable rotates at a first rotation speed, and when the liner is wound in the connection region adjacent to the sidewall 201, the worktable rotates at a second rotation speed.
Besides, the step of winding the liner further comprises the step of controlling the liner 200 and the evaporation tube to be wound to move relatively along the height direction, wherein the height direction is perpendicular to the rotation direction of the liner. In practical application, the height of the workbench, i.e. the inner container 200, is usually kept unchanged, and the evaporation tube to be wound and the mechanical arm are controlled to be lifted or lowered at a set speed in the process of winding the inner container. It should be noted that the evaporating pipes to be wound and the mechanical arm can be lifted at a uniform speed, and the winding density of the evaporating pipes in different areas of the inner container 200 can be designed differently according to the design requirements of the product and the change of the lifting speed.
In summary, according to the evaporation tube winding method and the evaporation tube winding device, the liner winding process of different areas of the liner 201 is optimally designed, so that the phenomena of flash seams and strangulation at the corner positions of the connecting areas of the adjacent side walls 201 can be well avoided, the production efficiency and the product quality are improved, and the field implementation is easy.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is merely a detailed description of possible embodiments of the present invention, and it is not intended to limit the scope of the invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An evaporating pipe winding method is characterized in that:
sleeving an inner container on a mold, wherein the inner container is provided with a plurality of side walls which are connected in sequence;
fixing the free end of the evaporation tube to the set position of the inner container;
and the inner container is wound, when the evaporation tube is wound to the middle area of the side wall, the inner container is controlled to rotate at a first rotating speed, when the evaporation tube is wound to the connecting area of the adjacent side wall, the inner container is controlled to rotate at a second rotating speed, and the second rotating speed is less than the first rotating speed.
2. The evaporating tube winding method of claim 1, wherein: the method for winding the evaporation tube further comprises the step of detecting the real-time position of the inner container in the process of winding the inner container.
3. The evaporating tube winding method of claim 1, wherein: the first rotation speed is set to 16-18 revolutions per minute.
4. The evaporating tube winding method as set forth in claim 1 or 3, wherein: the second rotation speed is set to 12-15 revolutions per minute.
5. The evaporating tube winding method as set forth in claim 1, wherein: the method for winding the evaporation tube further comprises the step of pulling an adhesive tape, wherein the adhesive tape corresponds to the circumferential position of the evaporation tube to be wound, and in the step of winding the liner, the adhesive tape is used for adhering and fixing the evaporation tube on the outer surface of the liner.
6. The evaporating tube winding method as set forth in claim 1, wherein: the winding method of the evaporating pipe also comprises the steps of mounting the mould on a rotatable workbench, confirming that the mould is in a contraction state, and sleeving the inner container on the mould; after the step of sleeving the inner container on the mold is completed, the mold is controlled to be changed from a contraction state to an expansion state, so that the mold is abutted against the inner surface of the inner container.
7. The evaporating tube winding method as set forth in claim 1, wherein: the winding method of the evaporating pipe also comprises the step of moving the mechanical arm to press the evaporating pipe to be wound to the outer surface of the inner container.
8. The evaporating tube winding method as set forth in claim 1, wherein: and the step of winding the liner further comprises the step of controlling the liner and the evaporation tube to be wound to relatively move along the height direction, wherein the height direction is vertical to the rotation direction of the liner.
9. An evaporating tube winding apparatus for use in the evaporating tube winding method as set forth in any one of claims 1 to 8, comprising a rotatable table and a robot arm for pressing the evaporating tube to be wound against the outer surface of the inner container, characterized in that: the evaporating pipe winding equipment further comprises a detection device for detecting the real-time position of the inner container.
10. The evaporating tube winding apparatus of claim 9, wherein: the detection device comprises a laser transmitter and a laser receiver, wherein the laser transmitter is arranged on the mechanical arm and used for transmitting a set laser beam to the inner container.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110692958.1A CN115502261A (en) | 2021-06-22 | 2021-06-22 | Evaporating pipe winding method and evaporating pipe winding equipment |
| PCT/CN2022/100118 WO2022268072A1 (en) | 2021-06-22 | 2022-06-21 | Evaporation pipe winding method and evaporation pipe winding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110692958.1A CN115502261A (en) | 2021-06-22 | 2021-06-22 | Evaporating pipe winding method and evaporating pipe winding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115502261A true CN115502261A (en) | 2022-12-23 |
Family
ID=84499112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110692958.1A Pending CN115502261A (en) | 2021-06-22 | 2021-06-22 | Evaporating pipe winding method and evaporating pipe winding equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115502261A (en) |
| WO (1) | WO2022268072A1 (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1039035A (en) * | 1975-05-07 | 1978-09-26 | Aktiebolaget Atomenergi | Method of winding overlapping tubes of a heat-exchanger |
| US4139932A (en) * | 1975-10-18 | 1979-02-20 | Benteler-Werke Ag | Method for winding and forming of cooling coils |
| FR2371250A1 (en) * | 1976-11-19 | 1978-06-16 | Technip Cie | PROCESS FOR WINDING TUBES ON A CORE, DEVICE FOR IMPLEMENTING THIS PROCESS AND COIL TUBES HEAT EXCHANGER THUS OBTAINED |
| FR2493193A2 (en) * | 1980-10-31 | 1982-05-07 | Vaissiere Pierre | Tube winder for heat exchanger - uses upper and lower horizontal former plates on respectively fixed and adjustable shafts |
| JPS61222636A (en) * | 1985-03-29 | 1986-10-03 | Hitachi Ltd | Tube winding device for hampson type heat exchanger |
| US5099574A (en) * | 1990-11-29 | 1992-03-31 | Peerless Of America, Incorporated | Method of making a heat exchanger assembly with wrapped tubing |
| CN2614095Y (en) * | 2003-04-16 | 2004-05-05 | 广州粤研液压机电有限公司 | Automatic machine for tangling internal bladder with exhalant in refrigerator |
| CN102350469A (en) * | 2011-08-28 | 2012-02-15 | 贵州航天新力铸锻有限责任公司 | Winding method of spiral cooling pipe |
| CN203991815U (en) * | 2014-06-27 | 2014-12-10 | 江苏天舒电器有限公司 | A kind of condenser coil around pipe machine |
| CN106395512A (en) * | 2016-05-25 | 2017-02-15 | 建湖恒华机电有限公司 | Automatic containing winding machine of refrigerator evaporator |
-
2021
- 2021-06-22 CN CN202110692958.1A patent/CN115502261A/en active Pending
-
2022
- 2022-06-21 WO PCT/CN2022/100118 patent/WO2022268072A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2022268072A1 (en) | 2022-12-29 |
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