CN113680875A - Device and method for manufacturing indoor decoration billboard - Google Patents
Device and method for manufacturing indoor decoration billboard Download PDFInfo
- Publication number
- CN113680875A CN113680875A CN202111010326.9A CN202111010326A CN113680875A CN 113680875 A CN113680875 A CN 113680875A CN 202111010326 A CN202111010326 A CN 202111010326A CN 113680875 A CN113680875 A CN 113680875A
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- China
- Prior art keywords
- top plate
- workbench
- pressing plate
- plate
- roof
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000005034 decoration Methods 0.000 title claims abstract description 17
- 230000007306 turnover Effects 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 59
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention relates to the technical field of billboard production, in particular to a device and a method for manufacturing an indoor decoration billboard; indoor decoration bill-board making devices includes the workstation and turns over a subassembly, it sets up in the inboard of workstation to turn over a subassembly, it includes fixer and turnup ware to turn over a subassembly, the turnup ware sets up in the inboard bottom of workstation, the fixer sets up in the inboard top of workstation, the turnup ware includes outer roof, hydraulic stem and interior roof, the hydraulic stem sets up in the inboard bottom of workstation, outer roof sets up in the top of hydraulic stem, interior roof sets up in one side of outer roof, the hydraulic stem will outer roof jack-up, after outer roof jack-up, it rises to drive interior roof, drive outer roof and interior roof in proper order through the hydraulic stem and rise, and then the marginal substep of panel turns over a book, the problem that current crib crimper can't carry out many times of buckling voluntarily has been solved.
Description
Technical Field
The invention relates to the technical field of billboard production, in particular to a device and a method for manufacturing an indoor decoration billboard.
Background
The advertising board is widely applied at present, the advertising board comprises a signboard hung at a shop at the head and the tail of a street, and also comprises an advertising board hung on a wall surface and standing outdoors for propaganda, and generally, when the advertising board is manufactured, a turned edge of a cut steel plate needs to be bent and formed so as to be convenient for subsequent welding;
the existing bending machine cannot automatically bend, needs a worker to manually operate the bending machine to fold the iron plate for multiple times, and is low in machining efficiency.
Disclosure of Invention
The invention aims to provide a device and a method for manufacturing an interior decoration billboard, which solve the problem that the existing bending machine cannot automatically bend for multiple times.
In order to achieve the purpose, the invention provides an indoor decoration billboard manufacturing device which comprises a workbench and a turnover assembly, wherein the turnover assembly is arranged on the inner side of the workbench and fixedly connected with the workbench, the turnover assembly comprises a fixer and a turner, the turner is arranged at the bottom of the inner side of the workbench and fixedly connected with the workbench, and the fixer is arranged at the top of the inner side of the workbench and fixedly connected with the workbench;
the flanging device comprises an outer top plate, a hydraulic rod and an inner top plate, wherein the hydraulic rod is arranged at the bottom of the inner side of the workbench and is fixedly connected with the workbench, the outer top plate is arranged above the hydraulic rod and is fixedly connected with the hydraulic rod, the outer top plate is matched with the fixer, and the inner top plate is arranged on one side of the outer top plate and is respectively connected with the outer top plate and the workbench in a sliding manner.
The hydraulic rod drives the outer top plate and the inner top plate to rise sequentially.
The outer top plate is provided with a boss and a rubber strip, the boss is arranged at the bottom of the outer top plate and close to one side of the inner top plate, the boss is connected with the inner top plate in a sliding mode, and the rubber strip is arranged at the top of the outer top plate.
When the outer top plate rises and the plate is turned over, the boss lifts the inner top plate.
The fixer comprises an outer pressing plate and an inner pressing plate, wherein the outer pressing plate is arranged above the inner top plate, the outer pressing plate is matched with the outer top plate, the inner pressing plate is arranged on one side of the outer top plate far away from the outer pressing plate, and the inner pressing plate is arranged on the top of the inner side of the workbench and is connected with the workbench in a sliding mode.
The outer pressing plate and the pressing plate are used for fixing the plate.
The workbench comprises a limiting frame and a transportation assembly, the limiting frame is sleeved on the outer side of the outer top plate and fixedly connected with the hydraulic rod, the transportation assembly is arranged on one side of the outer top plate far away from the inner top plate, and the transportation assembly is fixedly connected with the limiting frame.
The conveying assembly is used for conveying the plates to the inner side of the limiting frame so as to be folded.
Wherein, the transportation subassembly includes brace table, driving chain and a plurality of roller bearing, the brace table set up in keeping away from of roof in the outer roof one side, just the brace table with spacing frame fixed connection, a plurality of the roller bearing all set up in the top of brace table is inboard, and all with brace table swivelling joint, the driving chain set up in a plurality of the same ends of roller bearing, and simultaneously with a plurality of the roller bearing meshing.
The transmission chain drives the rolling shaft to rotate, so that the plates are transported.
The invention also provides an assembly method of the indoor decorative billboard manufacturing device,
the method comprises the following steps:
sliding the inner top plate upwards from the bottom of the support platform to be combined with the support platform;
after the supporting table and the inner top plate are combined, placing the supporting table and the inner top plate into a limiting frame, fixing the supporting table and the limiting frame, and meanwhile, installing a hydraulic rod on one side, far away from the supporting table, of the inner top plate;
lifting the inner top plate, inserting a boss into the inner top plate from the side surface of the outer top plate, combining the inner top plate with the outer top plate, then loosening the inner top plate and the outer top plate, and sliding the outer top plate into the limiting frame along the inner top plate;
sliding an outer pressing plate downwards from the top of an inner pressing plate to be combined with the inner pressing plate;
and after the inner pressing plate and the outer pressing plate are combined, the inner pressing plate is pushed into the inner side of the limiting frame in a sliding manner from the side surface of the limiting frame, and the inner pressing plate and the limiting frame are fixed.
The transverse moving distance of the outer top plate is limited through the limiting frame and the supporting table, and the vertical moving distance of the outer top plate is limited through the outer pressing plate.
According to the device and the method for manufacturing the interior decoration billboard, the hydraulic rod jacks up the outer top plate, the inner top plate is driven to ascend after the outer top plate is jacked up, the outer top plate and the inner top plate are sequentially driven to ascend through the hydraulic rod, and then the edge of a plate is turned over step by step, so that the problem that the existing bending machine cannot automatically bend for multiple times is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic axial view of an apparatus and a method for manufacturing an interior decoration billboard according to the present invention.
Fig. 2 is a schematic front view of an indoor decoration billboard manufacturing device and method provided by the invention.
Fig. 3 is a schematic front view of a cross-sectional structure of an indoor decoration billboard manufacturing device and method provided by the invention.
Fig. 4 is a schematic top sectional view illustrating an apparatus and a method for manufacturing an interior decoration billboard according to the present invention.
Fig. 5 is a schematic side view of a cross-sectional structure of an apparatus and a method for manufacturing an interior decoration billboard provided by the invention.
Fig. 6 is a flow chart of an assembling method of the indoor decoration billboard manufacturing device provided by the invention.
10-turnover assembly, 11-flanging device, 111-outer top plate, 1111-boss, 1112-rubber strip, 112-inner top plate, 113-hydraulic rod, 12-fixer, 121-outer pressing plate, 1211-pallet, 1212-sliding strip, 122-inner pressing plate, 1221-pressing device, 12211-mounting frame, 12212-roller, 1222-fixing plate, 20-workbench, 21-limit frame, 22-transportation assembly, 221-supporting table, 222-transmission chain and 223-roller.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 6, the present invention provides an interior decoration billboard manufacturing device, which includes a workbench 20 and a turnover assembly 10, wherein the turnover assembly 10 is disposed at an inner side of the workbench 20 and is fixedly connected to the workbench 20, the turnover assembly 10 includes a fixer 12 and a turner 11, the turner 11 is disposed at a bottom of the inner side of the workbench 20 and is fixedly connected to the workbench 20, and the fixer 12 is disposed at a top of the inner side of the workbench 20 and is fixedly connected to the workbench 20;
the flanging device 11 comprises an outer top plate 111, a hydraulic rod 113 and an inner top plate 112, wherein the hydraulic rod 113 is arranged at the bottom of the inner side of the workbench 20 and is fixedly connected with the workbench 20, the outer top plate 111 is arranged above the hydraulic rod 113 and is fixedly connected with the hydraulic rod 113, the outer top plate 111 is matched with the fixer 12, and the inner top plate 112 is arranged at one side of the outer top plate 111 and is respectively connected with the outer top plate 111 and the workbench 20 in a sliding manner.
In the embodiment, a plate is placed on the workbench 20, and is pressed and fixed by the fixer 12, then the hydraulic rod 113 jacks up the outer top plate 111, so as to perform a first bending on the plate, after the bending is completed, the hydraulic rod 113 continues to jack up the outer top plate 111, so as to lift up the inner top plate 112, perform a second bending on the plate, sequentially drive the outer top plate 111 and the inner top plate 112 to lift up by the hydraulic rod 113, so as to turn over the edge of the plate step by step, thereby solving the problem that the existing bending machine cannot automatically perform multiple bending.
Further, the outer top plate 111 has a boss 1111 and a rubber strip 1112, the boss 1111 is disposed at the bottom of the outer top plate 111 near the side of the inner top plate 112, and the boss 1111 is slidably connected with the inner top plate 112, and the rubber strip 1112 is disposed at the top of the outer top plate 111;
the fixer 12 includes an outer pressing plate 121 and an inner pressing plate 122, the outer pressing plate 121 is disposed above the inner top plate 112, the outer pressing plate 121 is matched with the outer top plate 111, the inner pressing plate 122 is disposed on one side of the outer pressing plate 121 far away from the outer top plate 111, and the inner pressing plate 122 is disposed on the top of the inner side of the workbench 20 and is slidably connected with the workbench 20;
the outer pressing plate 121 is provided with a saddle 1211 and a sliding bar 1212, the saddle 1211 is disposed on one side of the outer pressing plate 121 close to the outer top plate 111, the saddle 1211 is matched with the outer top plate 111, the sliding bar 1212 is disposed on one side of the outer pressing plate 121 far away from the saddle 1211, and the sliding bar 1212 is slidably connected with the inner pressing plate 122;
the inner pressing plate 122 comprises a fixing plate 1222 and a presser 1221, the fixing plate 1222 is disposed on the outer pressing plate 121 on the side away from the outer top plate 111, the fixing plate 1222 is slidably connected to the sliding bar 1212, the fixing plate 1222 is fixedly connected to the worktable 20, and the presser 1221 is disposed below the fixing plate 1222 and slidably connected to the fixing plate 1222;
the pressing device 1221 comprises a mounting frame 12211 and a plurality of rollers 12212, the mounting frame 12211 is disposed below the fixing plate 1222 and slidably connected to the fixing plate 1222, and the plurality of rollers 12212 are disposed inside the mounting frame 12211 and slidably connected to the mounting frame 12211;
the workbench 20 comprises a limiting frame 21 and a transporting assembly 22, the limiting frame 21 is sleeved on the outer side of the outer top plate 111, the limiting frame 21 is fixedly connected with the hydraulic rod 113, the transporting assembly 22 is arranged on one side, far away from the outer top plate 111, of the inner top plate 112, and the transporting assembly 22 is fixedly connected with the limiting frame 21;
In this embodiment, a sheet material is placed on the supporting platform 221 through the transporting assembly 22, the inner pressing plate 122 presses the sheet material through the pressing device 1221, then the hydraulic rod 113 jacks up the outer top plate 111, after the sheet material is bent for the first time, the outer top plate 111 continues to rise to contact with the pallet 1211 to lift the outer pressing plate 121, the outer pressing plate 121 slides upwards along the sliding bar 1212, meanwhile, the boss 1111 lifts the inner top plate 112 to bend the sheet material again, after the bending is completed, the driving chain 222 is driven to rotate by the motor to drive the plurality of rollers 223 to rotate, the bent sheet material is transported out of the limiting frame 21 to be processed for the next step, the mounting frame 12211 and the outer pressing plate 121 are both matched with the fixing plate 1222 through springs to generate a downward pressure, and when the bent sheet material is placed, the roller 223 rotates, when placing the plate on the supporting platform 221, the plate drives the roller 12212 to rotate, friction between the mounting rack 12211 and the plate is reduced, and the rubber strip 1112 is used for preventing the outer top plate 111 from scratching the surface of the plate when turning over the plate.
The invention also provides an assembly method of the indoor decorative billboard manufacturing device,
the method comprises the following steps:
s101: sliding the inner top plate 112 upward from the bottom of the support table 221, combining with the support table 221, and limiting the rising height of the inner top plate 112 by the support table 221;
s102: after the support table 221 and the inner top plate 112 are combined, the support table 221 and the limit frame 21 are placed in a limit frame 21, the support table 221 and the limit frame 21 are fixed, meanwhile, the hydraulic rod 113 is installed on the side, far away from the support table 221, of the inner top plate 112, and the installation position of the hydraulic rod 113 is determined according to the combined position of the inner top plate 112 and the support table 221;
s103: lifting the inner top plate 112, inserting the boss 1111 into the inner top plate 112 from the side of the outer top plate 111, combining with the inner top plate 112, then releasing the inner top plate 112 and the outer top plate 111, sliding the outer top plate 111 into the limit frame 21 along the inner top plate 112, and the inner top plate 112 cooperating with the limit frame 21 to prevent the outer top plate 111 from moving laterally;
s104: sliding the outer pressing plate 121 downwards from the top of the inner pressing plate 122, combining with the inner top plate 112, and connecting the sliding of the outer pressing plate 121 with the sliding of the inner pressing plate 122 through the sliding bar 1212;
s105: after the inner top plate 112 and the outer top plate 111 are combined, the inner top plate 112 is slidably pushed into the inner side of the limit frame 21 from the side surface of the limit frame 21, and the inner top plate 112 and the limit frame 21 are fixed, the top surface of the limit frame 21 limits the lifting height of the outer pressing plate 121 to prevent the outer top plate 111 from falling off, and the outer top plate 111 is prevented from falling off from the inner top plate 112 by limiting the lifting height of the outer top plate 111 by the outer pressing plate 121.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An indoor decoration billboard making device is characterized in that,
the indoor decoration billboard manufacturing device comprises a workbench and a turnover assembly, wherein the turnover assembly is arranged on the inner side of the workbench and fixedly connected with the workbench, the turnover assembly comprises a fixer and a turner, the turner is arranged at the bottom of the inner side of the workbench and fixedly connected with the workbench, and the fixer is arranged at the top of the inner side of the workbench and fixedly connected with the workbench;
the flanging device comprises an outer top plate, a hydraulic rod and an inner top plate, wherein the hydraulic rod is arranged at the bottom of the inner side of the workbench and is fixedly connected with the workbench, the outer top plate is arranged above the hydraulic rod and is fixedly connected with the hydraulic rod, the outer top plate is matched with the fixer, and the inner top plate is arranged on one side of the outer top plate and is respectively connected with the outer top plate and the workbench in a sliding manner.
2. The apparatus and method for making an indoor decorative billboard of claim 1,
outer roof has boss and rubber strip, the boss set up in the bottom of outer roof is close to interior roof one side, just the boss with interior roof sliding connection, the rubber strip set up in the top of outer roof.
3. The apparatus and method for making an indoor decorative billboard of claim 2,
the fixer comprises an outer pressing plate and an inner pressing plate, wherein the outer pressing plate is arranged above the inner top plate, the outer pressing plate is matched with the outer top plate, the inner pressing plate is arranged on one side of the outer top plate far away from the outer pressing plate, and the inner pressing plate is arranged on the top of the inner side of the workbench and is in sliding connection with the workbench.
4. The apparatus and method for making an indoor decorative billboard of claim 3,
the workstation includes spacing frame and transportation subassembly, spacing frame cover is in the outside of outer roof, just spacing frame with hydraulic stem fixed connection, the transportation subassembly set up in keeping away from of interior roof outer roof one side, just the transportation subassembly with spacing frame fixed connection.
5. The apparatus and method for making an indoor decorative billboard as claimed in claim 4,
the transportation assembly comprises a supporting table, a transmission chain and a plurality of rollers, wherein the supporting table is arranged on the inner top plate and is far away from one side of the outer top plate, the supporting table is fixedly connected with the limiting frame, the rollers are arranged on the inner side of the top of the supporting table and are rotatably connected with the supporting table, and the transmission chain is arranged at one end of the rollers and is meshed with the rollers.
6. An assembling method using the apparatus for making an indoor decorative signboard of claim 5,
also comprises the following steps:
sliding the inner top plate upwards from the bottom of the support platform to be combined with the support platform;
after the supporting table and the inner top plate are combined, placing the supporting table and the inner top plate into a limiting frame, fixing the supporting table and the limiting frame, and meanwhile, installing a hydraulic rod on one side, far away from the supporting table, of the inner top plate;
lifting the inner top plate, inserting a boss into the inner top plate from the side surface of the outer top plate, combining the inner top plate with the outer top plate, then loosening the inner top plate and the outer top plate, and sliding the outer top plate into the limiting frame along the inner top plate;
sliding an outer pressing plate downwards from the top of an inner pressing plate to be combined with the inner pressing plate;
and after the inner pressing plate and the outer pressing plate are combined, the inner pressing plate is pushed into the inner side of the limiting frame in a sliding manner from the side surface of the limiting frame, and the inner pressing plate and the limiting frame are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010326.9A CN113680875A (en) | 2021-08-31 | 2021-08-31 | Device and method for manufacturing indoor decoration billboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111010326.9A CN113680875A (en) | 2021-08-31 | 2021-08-31 | Device and method for manufacturing indoor decoration billboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113680875A true CN113680875A (en) | 2021-11-23 |
Family
ID=78584264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111010326.9A Pending CN113680875A (en) | 2021-08-31 | 2021-08-31 | Device and method for manufacturing indoor decoration billboard |
Country Status (1)
| Country | Link |
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| CN (1) | CN113680875A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198969A (en) * | 1997-05-08 | 1998-11-18 | 丰田自动车株式会社 | Method and apparatus for manufacturing bent products |
| CN1320498A (en) * | 2000-02-04 | 2001-11-07 | 株式会社理光 | Tube, tubr making method and device, semifinished tube, supporting member, supporter structure and image forming device |
| JP2010247225A (en) * | 2008-11-06 | 2010-11-04 | Jfe Steel Corp | Method and apparatus for forming structure having closed cross section |
| JP2013163209A (en) * | 2012-02-13 | 2013-08-22 | Aisin Seiki Co Ltd | Hot press forming device and hot press forming method |
| CN107597913A (en) * | 2017-10-10 | 2018-01-19 | 王维忠 | A kind of airduct aluminium sheet automates folding forming device |
| CN210387056U (en) * | 2019-08-23 | 2020-04-24 | 安徽合宇装备科技有限公司 | Sheet metal line bending device |
| CN111136135A (en) * | 2020-01-15 | 2020-05-12 | 袁则怀 | Bilateral panel turnover machine |
| CN113102586A (en) * | 2021-04-09 | 2021-07-13 | 耿海生 | Manufacturing, forming and processing method of alloy plastic-sprayed wire and cable bridge |
-
2021
- 2021-08-31 CN CN202111010326.9A patent/CN113680875A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198969A (en) * | 1997-05-08 | 1998-11-18 | 丰田自动车株式会社 | Method and apparatus for manufacturing bent products |
| CN1320498A (en) * | 2000-02-04 | 2001-11-07 | 株式会社理光 | Tube, tubr making method and device, semifinished tube, supporting member, supporter structure and image forming device |
| JP2010247225A (en) * | 2008-11-06 | 2010-11-04 | Jfe Steel Corp | Method and apparatus for forming structure having closed cross section |
| JP2013163209A (en) * | 2012-02-13 | 2013-08-22 | Aisin Seiki Co Ltd | Hot press forming device and hot press forming method |
| CN107597913A (en) * | 2017-10-10 | 2018-01-19 | 王维忠 | A kind of airduct aluminium sheet automates folding forming device |
| CN210387056U (en) * | 2019-08-23 | 2020-04-24 | 安徽合宇装备科技有限公司 | Sheet metal line bending device |
| CN111136135A (en) * | 2020-01-15 | 2020-05-12 | 袁则怀 | Bilateral panel turnover machine |
| CN113102586A (en) * | 2021-04-09 | 2021-07-13 | 耿海生 | Manufacturing, forming and processing method of alloy plastic-sprayed wire and cable bridge |
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