CN111331021A - Coil pipe bending device - Google Patents
Coil pipe bending device Download PDFInfo
- Publication number
- CN111331021A CN111331021A CN201911340661.8A CN201911340661A CN111331021A CN 111331021 A CN111331021 A CN 111331021A CN 201911340661 A CN201911340661 A CN 201911340661A CN 111331021 A CN111331021 A CN 111331021A
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- rail
- plate
- clamping
- guide rail
- oil cylinder
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- 238000005452 bending Methods 0.000 title claims abstract description 29
- 230000001788 irregular Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 241001184547 Agrostis capillaris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
-
- 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
- B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention is suitable for the technical field of pipe bending equipment, and provides a coiled pipe bending device which comprises a wheel die, a clamping die holder, a bearing sleeve, a guide rail plate, a bearing, a fixing plate, a sliding block, a forked two-hole plate, a three-hole plate, an oil cylinder lug, a clamping oil cylinder and a shell, wherein the clamping oil cylinder is arranged in the shell, the side wall of the clamping oil cylinder is rotatably connected with the side wall of the shell through a rotating shaft, three holes of the three-hole plate are respectively connected with one end of the forked two-hole plate, the oil cylinder lug and the shell through first pin shafts, the clamping die holder is driven by the clamping oil cylinder, a clamping die is arranged on the clamping die holder, the clamping die is connected with the guide rail plate with irregular guide rail grooves through a rod end bearing and a core shaft, and the irregular guide rail grooves guide the clamping die to avoid the simultaneous floating movement of, the problem of bend interference of snakelike pipes with small bending radius and continuous bending in the pipe bender is solved.
Description
Technical Field
The invention belongs to the technical field of pipe bending equipment, and particularly relates to a pipe bending device for a coiled pipe.
Background
The bending pipe is bent by adopting a complete set of bending equipment and is divided into two processes of cold bending and hot pushing. No matter which kind of machine equipment and pipeline, the elbow pipe is mostly used for oil transportation, gas transportation, liquid transportation, engineering bridge construction and the like. The common bent pipe of the user of the coiled pipe is processed and formed by adopting a corresponding bent pipe device.
The existing pipe bending device has certain defects in use, the bending radius of the existing pipe bending device is small, and the bent pipes of the continuously bent serpentine pipes interfere with each other.
Disclosure of Invention
The invention provides a coiler device for a coiled pipe, and aims to solve the problems that the bending radius is small, and the interference occurs to the continuously bent coiled pipes.
The invention is realized in this way, a kind of coil pipe bending device, including wheel mould, clamp die holder, bearing housing, guide rail plate, bearing, dead plate, slide block, Y-shaped two orifice plates, three orifice plates, cylinder journal stirrup, clamping cylinder and body;
the clamping oil cylinder is installed in the shell, the side wall of the clamping oil cylinder is rotatably connected with the side wall of the shell through a rotating shaft, the oil cylinder lug is installed at the output end of the clamping oil cylinder, three holes of the three hole plates are respectively connected with one end of the two forked hole plates, the oil cylinder lug and the shell through first pin shafts, the other end of the two forked hole plates is rotatably connected with the sliding block through second pin shafts, a sliding groove is formed in the top of the shell, the sliding block is embedded into the sliding groove and is movably connected with the shell, the clamping die holder is installed at the top of the sliding block, one end of the clamping die holder is provided with a convex plate, the clamping die is rotatably connected with the convex plate through a third pin shaft, the fixing plate is installed on the outer wall of the shell and faces the clamping die holder, and the guide rail plate is installed on the fixing plate and is not arranged, a guide rail groove is formed in the guide rail plate, the guide rail groove is provided with a first rail, a second rail and a third rail, the height of the third rail is lower than that of the first rail, the third rail and the first rail are horizontally arranged, the second rail is located between the third rail and the first rail, two ends of the second rail are respectively connected with one end of the third rail and one end of the first rail, the clamping die passes through the mandrel for connecting the guide rail plate, one end of the mandrel is passed through the guide rail groove, the mandrel is provided with one rod end bearing, the rod end bearing is slidably connected with the guide rail groove, the wheel die is arranged at one end of the top of the shell and located on one side of the clamping die, and the wheel die is fixedly connected with the shell.
Preferably, the wheel mold further comprises a wheel mold cushion block, the wheel mold cushion block is installed at the top of the shell, and the wheel mold is fixed to the top of the wheel mold cushion block.
Preferably, the three-hole plate is of a triangular structure, and three holes in the three-hole plate are respectively positioned at triangular positions of the three-hole plate.
Preferably, the other end of the clamping die is provided with a pressing groove, and the pressing groove is of an arc-shaped structure.
Preferably, one end of the clamping die is provided with a U-shaped mounting groove, the convex plate is embedded into the mounting groove, and the third pin shaft penetrates through the mounting groove.
Preferably, the top of the sliding block is provided with two embedded blocks which are arranged at intervals along the width direction of the sliding block, the bottom of the die holder is provided with two embedded grooves matched with the two embedded blocks, and the embedded blocks are detachably embedded into the embedded grooves.
Preferably, the bottom of the sliding block is provided with a hinged support, and the hinged support is connected with the fork-shaped two-hole plate through the second pin shaft.
Preferably, the oil cylinder shaft lug is of a U-shaped structure, and the three hole plates are embedded into the inner side of the oil cylinder shaft lug.
Compared with the prior art, the invention has the beneficial effects that: according to the pipe bending device for the coiled pipe, the clamping oil cylinder drives the clamping die holder, the clamping die is mounted on the clamping die holder and is connected with the guide rail plate with the irregular guide rail groove through the rod end bearing and the core shaft, and the irregular guide rail groove guides the clamping die to avoid the interference position of the coiled pipe from floating up and down and back and forth simultaneously, so that the clamping and loosening effects are achieved, and the problem of pipe bending interference of the coiled pipe which is small in bending radius and continuously bent in the pipe bending machine is solved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an exploded perspective view of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
In the figure: the device comprises a pipe fitting 1, a wheel die 2, a wheel die 3, a die holder 4, a bearing sleeve 5, a guide rail plate 6, a bearing 7, a fixing plate 8, a sliding block 9, a forked double-hole plate 10, a three-hole plate 11, an oil cylinder shaft lug 12, a clamping oil cylinder 13, a wheel die cushion 14 and a bent pipe wall 15.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-3, the present invention provides a technical solution: a coiled pipe bending device comprises a wheel die 2, a clamping die 3, a clamping die seat 4, a mandrel 5, a guide rail plate 6, a rod end bearing 7, a fixing plate 8, a sliding block 9, a forked two-hole plate 10, a three-hole plate 11, an oil cylinder shaft lug 12, a clamping oil cylinder 13, a wheel die cushion block 14 and a shell 15.
A clamping oil cylinder 13 is installed in the shell 15, the side wall of the clamping oil cylinder 13 is rotatably connected with the side wall of the shell 15 through a rotating shaft, and an oil cylinder shaft lug 12 is installed at the output end of the clamping oil cylinder 13. The housing 15 has a rectangular inner cavity, the clamping cylinder 13 is disposed in the housing 15, and the tail of the clamping cylinder 13 extends out of the housing 15. The rotating shaft is located at one end, close to the output end, of the clamping oil cylinder 13, the clamping oil cylinder 13 can rotate through the rotating shaft, the oil cylinder shaft lug 12 is of a U-shaped structure, a shaft groove is formed in the bottom of the oil cylinder shaft lug 12, and the shaft groove is fixedly connected with the output end of the clamping oil cylinder 13.
The three-hole plate 11 is of a triangular structure, the edges of the triangle of the three-hole plate 11 are in arc transition, three holes in the three-hole plate 11 are respectively located at the triangular positions of the three-hole plate 11, three holes in the three-hole plate 11 are respectively connected with one end of the fork-shaped two-hole plate 10, the oil cylinder shaft lug 12 and the shell 15 through the first pin shaft according to three first pin shafts, and the three holes of the three-hole plate 11 are respectively connected with the three-hole plate through the three first pin shafts. The three-hole plate 11 is embedded in the inner side of the cylinder shaft lug 12.
The other end of the forked two-hole plate 10 is rotatably connected with the sliding block 9 through a second pin shaft, a sliding groove is formed in the top of the shell 15 and is a U-shaped groove, an opening used for installing the sliding block 9 is formed in one end of the sliding groove, the sliding block 9 is embedded into the sliding groove through the opening and is movably connected with the shell 15, the clamping die holder 4 is installed at the top of the sliding block 9, a convex plate is arranged at one end of the clamping die holder 4, the clamping die 3 is rotatably connected with the convex plate through a third pin shaft, a pressing groove is formed in the other end of the clamping die 3, and the pressing groove is. The one end of die holder 3 has a U-shaped mounting groove, and in the flange embedding mounting groove, the third round pin axle runs through the mounting groove, and the top of slider 9 has two abaculus blocks that set up along the width direction interval of slider 9, and die holder 4's bottom seted up with two abaculus blocks assorted caulking grooves, and in the abaculus block detachable embedding caulking groove, the user can utilize abaculus block and caulking groove installation die holder 3, and the structure is firm, and it is convenient to dismantle. The bottom of the sliding block 9 is provided with a hinged support which is connected with a forked two-hole plate 10 through a second pin shaft. The forked two-hole plate 10 is in an I-shaped structure and is provided with two clamping grooves, one hole of the three-hole plate 11 is located in one clamping groove of the forked two-hole plate 10 and is connected with the forked two-hole plate 10 through a first pin shaft, and the hinged support is located in the other clamping groove of the forked two-hole plate 10 and is connected with the forked two-hole plate 10 through a second pin shaft. Therefore, when the oil cylinder shaft lug 12 performs piston action, the three-hole plate 11 and the fork-shaped two-hole plate 10 drive the slide block 9 to transversely slide in the slide groove, and further the die clamping seat 4 and the die clamping 3 are moved.
Fixed plate 8 is installed on casing 15's outer wall and is facing die holder 4, guide rail plate 6 is installed on fixed plate 8 and does not have the top of casing 15, the partly last edge that highly is higher than casing 15 of fixed plate 8, and set up two mutual parallel strip-shaped grooves on the fixed plate 8, the fixed screw of connecting casing 15 is installed to the strip-shaped inslot, four fixed orificess have been seted up on guide rail plate 6, four fixed orificess are respectively through four fixed screw connection fixed plate 8, fixed plate 8 after the installation and die holder 4's structure are firm, and it is convenient to dismantle. A guide rail groove is formed in the guide rail plate 6 and provided with a first rail, a second rail and a third rail, the height of the third rail is lower than that of the first rail, the third rail and the first rail are both horizontally arranged, the second rail is located between the third rail and the first rail, two ends of the second rail are respectively connected with one end of the third rail and one end of the first rail, and the first rail, the second rail and the third rail jointly form an irregular guide rail groove. Press from both sides mould 3 and pass through dabber 5 and connect guide rail plate 6, the guide rail groove is passed to the one end of dabber 5, installs a rod end bearing 7 on the dabber 5, and rod end bearing 7 sliding connection guide rail groove, wheel mould 2 set up the one end at the top of casing 15 and lie in one side of pressing from both sides mould 3, wheel mould 2 fixed connection casing 15. Wheel mould cushion 14 is installed at the top of casing 15, and wheel mould 2 is fixed at the top of wheel mould cushion 14, and wheel mould cushion 14 is through a plurality of fixed screw connection casings 15 that are the annular and distribute, and the pipe fitting 1 of treating processing is installed on wheel mould 2, and wheel mould 2 provides the support to the pipe fitting to press forming through pressing from both sides the groove on the mould 3. When the slide block 9 transversely moves in the sliding groove, the clamping die 3 is guided by the irregular guide rail groove of the guide rail plate 6 to simultaneously perform the up-and-down floating action, the gap closest to the processing position of the pipe fitting 1 is lifted to the height of the pipe fitting 1 to press the pipe fitting 1, and then the pipe fitting 1 is recovered and descended, the continuous action enables the small clamping die 3 to work under the condition that the small clamping die does not interfere with the pipe fitting 1 and other parts, the working efficiency is increased, and the damage to the pipe fitting 1 is reduced.
According to the coil pipe bending device, when the oil cylinder shaft lug 12 performs piston action, the three-hole plate 11 and the forked two-hole plate 10 drive the sliding block 9 to transversely slide in the sliding groove, the die clamping seat 4 and the die clamping 3 are further moved, the die clamping 3 simultaneously performs up-and-down floating action through the guiding of the irregular guide rail groove of the guide rail plate 6, the gap closest to the processing position of the pipe fitting 1 is lifted to the height of the pipe fitting 1 to press the pipe fitting 1, then the pipe fitting 1 is recovered and lowered, the small die clamping 3 works under the condition that the small die clamping 3 does not interfere with the pipe fitting 1 and other parts, the working efficiency is increased, and the damage to the pipe fitting 1 is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A kind of coil pipe elbow device, characterized by: the device comprises a wheel die (2), a clamping die (3), a clamping die holder (4), a mandrel (5), a guide rail plate (6), a rod end bearing (7), a fixed plate (8), a sliding block (9), a forked two-hole plate (10), a three-hole plate (11), an oil cylinder lug (12), a clamping oil cylinder (13) and a shell (15);
install one in casing (15) press from both sides tight hydro-cylinder (13), the lateral wall that presss from both sides tight hydro-cylinder (13) rotates through the pivot to be connected the lateral wall of casing (15), the output that presss from both sides tight hydro-cylinder (13) is installed hydro-cylinder journal stirrup (12), three hole of three orifice plate (11) is connected respectively through first round pin axle one end, hydro-cylinder journal stirrup (12) of two forked orifice plates of fork (10) and casing (15), the other end of two forked orifice plates of fork (10) is connected through second round pin axle rotation slider (9), a spout has been seted up at the top of casing (15), slider (9) embedding in the spout and swing joint casing (15), die holder (4) are installed the top of slider (9), the one end of die holder (4) has a flange, the rotation of die holder (3) through a third round pin axle is connected the flange, the fixed plate (8) is arranged on the outer wall of the shell (15) and faces the die holder (4), the guide rail plate (6) is arranged on the fixed plate (8) and is not arranged above the shell (15), a guide rail groove is formed in the guide rail plate (6), the guide rail groove is provided with a first rail, a second rail and a third rail, the height of the third rail is lower than that of the first rail, the third rail and the first rail are horizontally arranged, the second rail is arranged between the third rail and the first rail, two ends of the second rail are respectively connected with one end of the third rail and one end of the first rail, the die holder (3) is connected with the guide rail plate (6) through the mandrel (5), one end of the mandrel (5) penetrates through the guide rail groove, and one rod end bearing (7) is arranged on the mandrel (5), the rod end bearing (7) is connected with the guide rail groove in a sliding mode, the wheel die (2) is arranged at one end of the top of the shell (15) and located on one side of the clamping die (3), and the wheel die (2) is fixedly connected with the shell (15).
2. A serpentine tube bending device according to claim 1, wherein: the wheel mold is characterized by further comprising a wheel mold cushion block (14), the wheel mold cushion block (14) is installed at the top of the shell (15), and the wheel mold (2) is fixed to the top of the wheel mold cushion block (14).
3. A serpentine tube bending device according to claim 1, wherein: the three-hole plate (11) is of a triangular structure, and three holes in the three-hole plate (11) are respectively positioned at the triangular positions of the three-hole plate (11).
4. A serpentine tube bending device according to claim 1, wherein: the other end of the clamping die (3) is provided with a pressing groove which is of an arc-shaped structure.
5. A serpentine tube bending device according to claim 1, wherein: one end of the clamping die (3) is provided with a U-shaped mounting groove, the convex plate is embedded into the mounting groove, and the third pin shaft penetrates through the mounting groove.
6. A serpentine tube bending device according to claim 1, wherein: the top of slider (9) has along two abaculus that the width direction interval of slider (9) set up, the bottom of die holder (4) seted up with two abaculus assorted caulking grooves, the embedding of abaculus detachable is in the caulking groove.
7. A serpentine tube bending device according to claim 1, wherein: the bottom of the sliding block (9) is provided with a hinged support which is connected with the fork-shaped two-hole plate (10) through the second pin shaft.
8. A serpentine tube bending device according to claim 1, wherein: the oil cylinder shaft lug (12) is of a U-shaped structure, and the three hole plates (11) are embedded into the inner side of the oil cylinder shaft lug (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340661.8A CN111331021A (en) | 2019-12-23 | 2019-12-23 | Coil pipe bending device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340661.8A CN111331021A (en) | 2019-12-23 | 2019-12-23 | Coil pipe bending device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111331021A true CN111331021A (en) | 2020-06-26 |
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ID=71175660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911340661.8A Pending CN111331021A (en) | 2019-12-23 | 2019-12-23 | Coil pipe bending device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111331021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496107A (en) * | 2020-11-28 | 2021-03-16 | 深圳市果源石油化工有限公司 | Boiler coiled pipe bending forming processing system |
| CN113000652A (en) * | 2021-02-26 | 2021-06-22 | 金华馨菲科技有限公司 | Bending forming device for evaporating pipe of evaporating plate of refrigerator |
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| US4763506A (en) * | 1987-03-13 | 1988-08-16 | Zeng Jun Lang | Automatic tube bending machine |
| US20060112752A1 (en) * | 2004-11-30 | 2006-06-01 | Ping-Kun Hu | Tube bender |
| CN1883840A (en) * | 2006-07-07 | 2006-12-27 | 江阴机械制造有限公司 | Device for clamping four link type serpentuator of small-radius pipe bender |
| CN201132183Y (en) * | 2007-12-10 | 2008-10-15 | 浙江金马逊机械有限公司 | Collision-avoiding clamping mechanism for pipe bender |
| CN103272902A (en) * | 2013-06-20 | 2013-09-04 | 张家港市明华机械制造有限公司 | Coiled pipe bending mechanism |
| KR20150140470A (en) * | 2014-06-05 | 2015-12-16 | 오두환 | Processing device and processing process for TV lower stand frame |
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| CN106111828A (en) * | 2016-08-19 | 2016-11-16 | 安徽德系重工科技有限公司 | A kind of heading pipe bender slope climbing type clamping device and using method thereof |
| CN107116115A (en) * | 2017-07-14 | 2017-09-01 | 芜湖德丰汽车零部件有限公司 | A kind of sigmoid curve bend pipe process equipment |
| CN207119660U (en) * | 2017-07-31 | 2018-03-20 | 浙江和良智能装备有限公司 | A kind of bending machine and its clamping component |
| CN109433871A (en) * | 2018-10-29 | 2019-03-08 | 张家港兴宇机械制造有限公司 | Clamping driving device in bending machine |
| CN110280638A (en) * | 2019-06-06 | 2019-09-27 | 张家港市台和机械制造有限公司 | Split type bending pipe arm in bending machine |
| CN110280637A (en) * | 2019-06-06 | 2019-09-27 | 张家港市台和机械制造有限公司 | Swan neck system in multimode bending machine |
| CN209613881U (en) * | 2018-10-15 | 2019-11-12 | 广东申菱环境系统股份有限公司 | A kind of full-automatic Snake-Shaped Tube Bending Machine |
| CN211938560U (en) * | 2019-12-23 | 2020-11-17 | 和和机械（张家港）有限公司 | Coil pipe bending device |
-
2019
- 2019-12-23 CN CN201911340661.8A patent/CN111331021A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4763506A (en) * | 1987-03-13 | 1988-08-16 | Zeng Jun Lang | Automatic tube bending machine |
| US20060112752A1 (en) * | 2004-11-30 | 2006-06-01 | Ping-Kun Hu | Tube bender |
| CN1883840A (en) * | 2006-07-07 | 2006-12-27 | 江阴机械制造有限公司 | Device for clamping four link type serpentuator of small-radius pipe bender |
| CN201132183Y (en) * | 2007-12-10 | 2008-10-15 | 浙江金马逊机械有限公司 | Collision-avoiding clamping mechanism for pipe bender |
| CN103272902A (en) * | 2013-06-20 | 2013-09-04 | 张家港市明华机械制造有限公司 | Coiled pipe bending mechanism |
| KR20150140470A (en) * | 2014-06-05 | 2015-12-16 | 오두환 | Processing device and processing process for TV lower stand frame |
| CN205463761U (en) * | 2016-01-29 | 2016-08-17 | 张家港兴宇机械制造有限公司 | Double -headed tube bender |
| CN106111828A (en) * | 2016-08-19 | 2016-11-16 | 安徽德系重工科技有限公司 | A kind of heading pipe bender slope climbing type clamping device and using method thereof |
| CN107116115A (en) * | 2017-07-14 | 2017-09-01 | 芜湖德丰汽车零部件有限公司 | A kind of sigmoid curve bend pipe process equipment |
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| CN209613881U (en) * | 2018-10-15 | 2019-11-12 | 广东申菱环境系统股份有限公司 | A kind of full-automatic Snake-Shaped Tube Bending Machine |
| CN109433871A (en) * | 2018-10-29 | 2019-03-08 | 张家港兴宇机械制造有限公司 | Clamping driving device in bending machine |
| CN110280638A (en) * | 2019-06-06 | 2019-09-27 | 张家港市台和机械制造有限公司 | Split type bending pipe arm in bending machine |
| CN110280637A (en) * | 2019-06-06 | 2019-09-27 | 张家港市台和机械制造有限公司 | Swan neck system in multimode bending machine |
| CN211938560U (en) * | 2019-12-23 | 2020-11-17 | 和和机械（张家港）有限公司 | Coil pipe bending device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112496107A (en) * | 2020-11-28 | 2021-03-16 | 深圳市果源石油化工有限公司 | Boiler coiled pipe bending forming processing system |
| CN112496107B (en) * | 2020-11-28 | 2022-03-22 | 青岛船用锅炉厂有限公司 | Boiler coiled pipe bending forming processing system |
| CN113000652A (en) * | 2021-02-26 | 2021-06-22 | 金华馨菲科技有限公司 | Bending forming device for evaporating pipe of evaporating plate of refrigerator |
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