CN111889548B - Curved surface automatic bending machine for lapel shaper - Google Patents
Curved surface automatic bending machine for lapel shaper Download PDFInfo
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- CN111889548B CN111889548B CN202010816240.4A CN202010816240A CN111889548B CN 111889548 B CN111889548 B CN 111889548B CN 202010816240 A CN202010816240 A CN 202010816240A CN 111889548 B CN111889548 B CN 111889548B
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- 238000005452 bending Methods 0.000 title claims abstract description 117
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 238000003825 pressing Methods 0.000 claims description 19
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
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- 238000010146 3D printing Methods 0.000 description 1
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- 238000011160 research Methods 0.000 description 1
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
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a curved surface automatic bending machine of a lapel shaper, which is characterized by comprising a frame, a control system, a bending mechanism assembly and a longitudinal position control mechanism, wherein the bending mechanism assembly comprises an angle control mechanism and 2 sets of bending actuating mechanisms which are symmetrically arranged, the angle of the 2 sets of bending actuating mechanisms is adjusted by the angle control mechanism, workpieces are symmetrically bent by the bending actuating mechanisms, and the longitudinal position control mechanism is used for positioning and clamping the workpieces and adjusting the longitudinal position of the workpieces. The invention has compact structure, replaces manual operation, improves production efficiency, reduces labor intensity of workers, reduces production cost, ensures precision, symmetry and consistency of curved surfaces of the lapel shaper, and improves product quality.
Description
Technical Field
The invention relates to automatic production equipment, in particular to an automatic curved surface bending machine for a lapel shaper.
Background
In a vertical bag making, filling and packaging machine, a lapel former is a key component. The design parameters of the lapel shaper are different from each other due to the difference in the pocket shape and size of the packaged products, and even for the packaged products with the same pocket shape and size, the difference in the specification size of the vertical type bag-making, filling and packaging machine and the difference in the position of the lapel shaper in the machine result in the difference in the design parameters of the lapel shaper, and the change in the design parameters results in the change in the curved surface of the lapel shaper.
In the process of manufacturing the lapel shaper, if the three-dimensional lapel shaper is manufactured by adopting a material removing processing technology of a numerical control machine tool or a material adding processing technology of a three-dimensional printing technology, the requirements can be met technically. But the manufacturing cost is high, and the two processing techniques are almost impossible to be widely adopted. At present, only on a multi-row bag making, filling and packaging machine mainly comprising medicines or health-care products calculated by g, a lapel former is integrally processed by a numerical control machine tool due to small size of the lapel former. Most of the turndown collar forming devices on the vertical bag making, filling and packaging machine are manufactured by adopting a sheet metal process, and the curved surfaces of the forming devices are formed by bending plane steel plates. Because of the characteristics of the shoulder curved surface of the lapel shaper, there is no mold which can conform to curved surfaces of various specifications for bending of the curved surface plate of the lapel shaper. So that industrially developed countries in the world such as united states, united kingdom, japan, etc. also use a manual production method by a master worker having a great deal of production experience in the sheet metal production of lapel formers.
The lapel shaper is formed by combining two working curved surfaces, namely a collar-shaped curved surface and a cylindrical surface. When the film is scratched on the surface of the former, the longitudinal direction and the transverse direction of the film are not lengthened or shortened at any position, so that the collar-shaped curved surface and the cylindrical surface can be unfolded into a plane, namely a deployable curved surface, which is the basic principle that a flat steel plate can be bent into the curved surface of the former by a sheet metal process.
The collar-shaped surface consists of a space plane and two symmetrical space curved surfaces, wherein the symmetrical space curved surfaces are called shoulder curved surfaces, and when the lapel shaper is manufactured by adopting a sheet metal process, the manufacturing difficulty is how to accurately bend the plane steel plate into the shoulder curved surfaces.
The shoulder surface is a deployable surface and is formed by one or more conical surfaces, the conical surface is formed by continuous movement of a straight line around a fixed point, and the straight line becomes a generating line mathematically, so the shoulder surface can be regarded as being formed by an infinite number of straight lines formed by the generating line at infinite positions. A typical method of the curved surface of the conventional manual bending former is to cut a planar steel plate into a steel plate 1' to be bent in the shape of fig. 9 according to a design drawing, wherein a plurality of straight lines in fig. 9 are also marked on the steel plate 1' to be bent by a laser with low power to serve as mark lines 2', and a worker takes the mark lines 2' on the steel plate 1' to be bent as a reference in bending, so that the steel plate is respectively bent in the same direction at the reference lines; the ideal shape after the segment-wise bending is the design shape, as shown in fig. 10. The precision and bilateral symmetry degree during bending depend on the experience of a worker master and the correction level after bending, and the manufacturing method has the problems of low working efficiency, low precision, symmetry and consistency of the manufactured lapel shaper and difficulty in guaranteeing the quality.
Disclosure of Invention
The inventor has made research and improvement to the above-mentioned problem, provides a lapel shaper curved surface automatic bending machine, compact structure replaces manual operation, improves production efficiency, lightens workman's intensity of labour, reduces manufacturing cost, ensures precision, symmetry and uniformity of lapel shaper curved surface, improves product quality.
In order to solve the technical problems, the invention adopts the following technical scheme:
A lapel shaper curved surface automatic bending machine comprising:
A frame and a control system;
The bending mechanism assembly is arranged on the frame and comprises an angle control mechanism and 2 sets of bending actuating mechanisms which are symmetrically arranged, wherein the angle control mechanism adjusts the angle of 2 sets of bending actuating mechanisms, and the bending actuating mechanisms symmetrically bend workpieces;
the longitudinal position control mechanism is arranged on the frame, and is used for positioning and clamping the workpiece and adjusting the longitudinal position of the workpiece.
Further:
The bending actuating mechanism comprises an outer angle arm and an inner angle arm, the outer ends of the outer angle arm and the inner angle arm are fixedly connected together, an inner pin shaft and an outer pin shaft which are horizontally and coaxially arranged are respectively connected with the rack, the inner ends of the outer angle arm and the inner angle arm are respectively and rotatably connected with the outer pin shaft and the inner pin shaft, and a bending filler strip is arranged between the outer angle arm and the inner angle arm and is fixedly connected with the outer angle arm; the bending driving mechanism is arranged in the middle of the inner angle arm, the bending driving mechanism comprises a bracket fixedly connected with the inner angle arm, a servo motor is fixedly arranged on the bracket, a screw rod is connected with the servo motor, the lower part of a bending connecting rod is hinged with the bracket, a screw rod nut which is hinged with the upper end of the bending connecting rod is connected with the screw rod in a threaded manner, an upper bending strip which is parallel to and opposite to the bending backing strip is fixedly connected with the lower end of the bending connecting rod through a cushion block, and round corners are respectively arranged on the opposite sides of the upper bending strip and the bending backing strip; the pressing piece strips are movably embedded in the inner angle arms at the opposite sides of the bending cushion strips, 2 pressing piece air cylinders symmetrically arranged at the two sides of the bending driving mechanism are fixedly connected with the inner angle arms, and piston rods of the pressing piece air cylinders are connected with the pressing piece strips;
The angle control mechanism comprises a first electric linear guide rail sliding table which is vertically arranged, a lifting plate is connected with the first electric linear guide rail sliding table, the lower ends of angle modulation connecting rods which are symmetrically arranged on two sides of the lifting plate are respectively hinged with the lifting plate, and the upper ends of the angle modulation connecting rods are respectively hinged with the middle parts of outer angle arms of the bending execution mechanism.
The outer ends of the inner angle arms are provided with waist-shaped holes, and the outer ends of the inner angle arms are fixedly connected with the outer ends of the outer angle arms through the waist-shaped holes.
The vertical position control mechanism comprises a second electric linear guide rail sliding table which is vertically arranged, the second electric linear guide rail sliding table is fixedly connected with the frame, the workpiece seat is connected with the second electric linear guide rail sliding table, the workpiece seat is provided with a horizontal groove for positioning a workpiece, a horizontally arranged compression cylinder is fixedly arranged on the rear side of the workpiece seat, and a piston rod of the compression cylinder extends into the horizontal groove.
The invention has the technical effects that:
The automatic curved surface bending machine for the lapel shaper disclosed by the invention has the advantages of compact structure, replacement of manual operation, improvement of production efficiency, reduction of labor intensity of workers, reduction of production cost, assurance of precision, symmetry and consistency of the curved surface of the lapel shaper, and improvement of product quality.
Drawings
Fig. 1 is a schematic three-dimensional structure of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a cross-sectional view at A-A of fig. 2.
Fig. 4 is a schematic three-dimensional structure of a bending actuator.
Fig. 5 is a front view of the bending actuator.
Fig. 6 is an enlarged sectional view at B-B of fig. 5.
Fig. 7 is a partial view in the C direction of fig. 5.
Fig. 8 is a schematic three-dimensional structure of the longitudinal position control mechanism.
Fig. 9 is a schematic structural view of a steel sheet to be bent.
Fig. 10 is a schematic view showing a three-dimensional structure of a collar-like curved surface work piece of a lapel former for completing bending.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
As shown in fig. 1 to 8, the invention comprises a frame 1 and a control system, wherein the control system is designed and manufactured according to the prior art and cooperatively controls the actions of all parts. The bending mechanism assembly 2 and the longitudinal position control mechanism 5 are arranged on the frame 1, the bending mechanism assembly 2 comprises an angle control mechanism 3 and 2 sets of bending actuating mechanisms 4 which are symmetrically arranged, the angle of the 2 sets of bending actuating mechanisms 4 is adjusted by the angle control mechanism 3, the longitudinal position control mechanism 5 is used for positioning and clamping a workpiece and adjusting the longitudinal position of the workpiece, and the 2 sets of bending actuating mechanisms 4 are used for symmetrically bending the workpiece.
As shown in fig. 1 to 7, the bending actuator 4 includes an outer corner arm 41 and an inner corner arm 42 with outer ends fixedly connected together, in this embodiment, as shown in fig. 7, a kidney-shaped hole 46 is provided at the outer end of the inner corner arm 42, and the outer end of the inner corner arm 42 is fixedly connected with the outer end of the outer corner arm 41 through the kidney-shaped hole 46, so that the structure can finely adjust the relative position between the outer corner arm 41 and the inner corner arm 42 during actual use, which is beneficial to adjusting the bending effect of the workpiece. The inner pin shaft 48 and the outer pin shaft 47 which are horizontally and coaxially arranged are respectively connected with the frame 1, the frame 1 comprises an L-shaped upper fixing plate 102 arranged at the upper end and an inverted T-shaped front fixing plate 101 arranged at the front side, the inner pin shaft 48 is arranged on the upper fixing plate 102, the outer pin shaft 47 is arranged on the front fixing plate 101, the inner ends of the outer corner arm 41 and the inner corner arm 42 are respectively and rotatably connected with the outer pin shaft 47 and the inner pin shaft 48, and the bending filler strip 43 is arranged between the outer corner arm 41 and the inner corner arm 42 and is fixedly connected with the outer corner arm 41. As shown in fig. 4, 5 and 6, the bending driving mechanism 6 is arranged in the middle of the inner angle arm 42, the bending driving mechanism 6 comprises a bracket 62 fixedly connected with the inner angle arm 42, a servo motor 61 is fixedly arranged on the bracket 62, a screw rod 63 is connected with the servo motor 61, the lower part of a bending connecting rod 65 is hinged with a bracket 62 through a pin shaft 67, the bracket 62 is formed by connecting 2 symmetrically arranged plate-shaped components, a shaft seat 68 is fixedly arranged between the 2 plate-shaped components of the bracket 62, the inner end part of the screw rod 63 is rotatably connected with the shaft seat 68, and the structure can ensure the stress and positioning stability of the screw rod 63; The bending connecting rod 65 is formed by connecting 2 symmetrically arranged plate-shaped components, the screw rod nut 64 is hinged between the 2 symmetrically arranged plate-shaped components at the upper end of the bending connecting rod 65, the screw rod nut 64 is in threaded connection with the screw rod 63, an upper bending strip 66 which is parallel to the bending backing strip 43 and is oppositely arranged is fixedly connected at the lower end of the bending connecting rod 65 through a cushion block 69, round corners are respectively arranged at the opposite sides of the upper bending strip 66 and the bending backing strip 43, the bending operation of a workpiece to be bent is completed through the relative movement between the upper bending strip 66 and the bending backing strip 43, the bending process of the workpiece is smooth due to the round corners of the upper bending strip 66 and the bending backing strip 43, and the surface of the workpiece is not damaged. The pressing piece 45 is movably embedded in the inner angle arms 42 on the opposite sides of the bending backing strip 43 (as shown in fig. 6), 2 pressing piece cylinders 44 symmetrically arranged on two sides of the bending driving mechanism 6 are fixedly connected with the inner angle arms 42, piston rods of the pressing piece cylinders 44 penetrate through the inner angle arms 42 to be connected with the pressing piece 45, when the bending operation of a workpiece to be bent is performed, the piston rods of the pressing piece cylinders 44 extend out to press the workpiece to be bent between the pressing piece 45 and the bending backing strip 43, and the servo motor 61 drives the bending connecting rod 65 to rotate around the pin shaft 67 through the screw rod 63 and the screw rod nut 64, so that relative movement is generated between the upper bending strip 66 on the lower end of the bending connecting rod 65 and the bending backing strip 43, and the workpiece to be bent is driven. As shown in fig. 1,2 and 3, the angle control mechanism 3 includes a first electric linear guide rail sliding table 31 that is vertically arranged, the first electric linear guide rail sliding table 31 is fixedly connected to a front fixing plate 101 of the frame 1, the lifting plate 32 is connected to the first electric linear guide rail sliding table 31,2, the lower ends of angle modulation connecting rods 33 that are symmetrically arranged on two sides of the lifting plate 32 are respectively hinged to the lifting plate 32, and the upper ends of the 2 angle modulation connecting rods 33 are respectively hinged to the middle parts of external angle arms 41 of the bending executing mechanism 4. The first electric linear guide rail sliding table 31 drives the lifting plate 32 to lift, and the angle adjusting connecting rod 33 drives the 2 bending actuating mechanisms 4 to synchronously adjust angles by taking the outer pin shafts 47 and the inner pin shafts 48 as axes.
As shown in fig. 1,2 and 8, the longitudinal position control mechanism 5 comprises a second electric linear guide rail sliding table 51 which is vertically arranged, the longitudinal position control mechanism 5 is arranged at the rear side of the angle control mechanism 3 of the bending mechanism assembly 2, the second electric linear guide rail sliding table 51 is fixedly connected with the frame 1, the workpiece seat 52 is connected with the second electric linear guide rail sliding table 51, the workpiece seat 52 is provided with a horizontal groove 53 for positioning a workpiece, a horizontally arranged compressing cylinder 54 is fixedly arranged at the rear side of the workpiece seat 52, a piston rod of the compressing cylinder 54 extends into the horizontal groove 53, when the bending operation is performed, the workpiece to be bent is inserted into the horizontal groove 53, the piston rod of the compressing cylinder 54 extends out to position and compress the workpiece to be bent in the horizontal groove 53, and the second electric linear guide rail sliding table 51 drives the workpiece to be bent to lift, so that the workpiece to be bent is bent at a proper position by the bending mechanism assembly 2.
In actual operation, in an initial state, the workpiece seat 52 of the longitudinal position control mechanism 5 is controlled by the control system to be lowered to the lowest position, the outer angle arms 41 and the inner angle arms 42 of the 2 bending execution mechanisms 4 of the bending mechanism assembly 2 are lowered to the lowest position under the action of the angle control mechanism 3 (as in a double-stippling position in fig. 2), the workpiece 7 to be bent passes through the gap between the inner angle arms 42 and the bending filler strips 43 of the 2 bending execution mechanisms 4 of the bending mechanism assembly 2 and is inserted into the horizontal groove 53 of the workpiece seat 52 of the longitudinal position control mechanism 5, and the workpiece to be bent is positioned and pressed by the piston rod of the pressing cylinder 54; at this time, the outer angle arms 41 and the inner angle arms 42 of the 2 bending execution mechanisms 4 of the bending mechanism assembly 2 are lifted to the first bending position (as in the position of fig. 2) under the action of the angle control mechanism 3, meanwhile, the workpiece seat 52 of the longitudinal position control mechanism 5 adjusts the workpiece 7 to be bent to the first bending position, the piston rod of the pressing member cylinder 44 of the bending execution mechanism 4 stretches out to press the workpiece to be bent between the pressing member strip 45 and the bending backing strip 43, and the bending connecting rod 65 of the bending driving mechanism 6 is driven by the servo motor 61 to generate relative motion between the upper bending strip 66 and the bending backing strip 43 and bend the workpiece to be bent for the first time; the above actions are repeated for a plurality of times under the control of the control system, the manual bending operation is simulated, and the bending of the workpiece is completed section by section. In the whole operation process, the control system converts the position parameters into control signals, the control software controls the actions of the first electric linear guide rail sliding table 31 and the servo motor 61 in the bending mechanism assembly 2 and the action of the second electric linear guide rail sliding table 51 of the longitudinal position control mechanism 5, and meanwhile, the control system automatically controls the actions of the pressing part cylinder 44 and the pressing cylinder 54, marking lines are not needed to be carved on the surface of a workpiece to be bent, the bending of the workpiece is automatically completed, manual operation is replaced, the production efficiency is improved, the production cost is reduced, the precision, the symmetry and the consistency of the lapel shaper are ensured, and the product quality is improved.
Claims (2)
1. The utility model provides a turn-down collar former curved surface automatic bending machine which characterized in that includes:
A frame and a control system;
The bending mechanism assembly is arranged on the frame and comprises an angle control mechanism and 2 sets of bending actuating mechanisms which are symmetrically arranged, wherein the angle control mechanism adjusts the angle of 2 sets of bending actuating mechanisms, and the bending actuating mechanisms symmetrically bend workpieces;
The longitudinal position control mechanism is arranged on the frame, and is used for positioning and clamping the workpiece and adjusting the longitudinal position of the workpiece;
The bending actuating mechanism comprises an outer angle arm and an inner angle arm, the outer ends of the outer angle arm and the inner angle arm are fixedly connected together, an inner pin shaft and an outer pin shaft which are horizontally and coaxially arranged are respectively connected with the rack, the inner ends of the outer angle arm and the inner angle arm are respectively and rotatably connected with the outer pin shaft and the inner pin shaft, and a bending filler strip is arranged between the outer angle arm and the inner angle arm and is fixedly connected with the outer angle arm; the bending driving mechanism is arranged in the middle of the inner angle arm, the bending driving mechanism comprises a bracket fixedly connected with the inner angle arm, a servo motor is fixedly arranged on the bracket, a screw rod is connected with the servo motor, the lower part of a bending connecting rod is hinged with the bracket, a screw rod nut which is hinged with the upper end of the bending connecting rod is connected with the screw rod in a threaded manner, an upper bending strip which is parallel to and opposite to the bending backing strip is fixedly connected with the lower end of the bending connecting rod through a cushion block, and round corners are respectively arranged on the opposite sides of the upper bending strip and the bending backing strip; the pressing piece strips are movably embedded in the inner angle arms at the opposite sides of the bending cushion strips, 2 pressing piece air cylinders symmetrically arranged at the two sides of the bending driving mechanism are fixedly connected with the inner angle arms, and piston rods of the pressing piece air cylinders are connected with the pressing piece strips;
the angle control mechanism comprises a first electric linear guide rail sliding table which is vertically arranged, a lifting plate is connected with the first electric linear guide rail sliding table, the lower ends of angle modulation connecting rods which are symmetrically arranged on two sides of the lifting plate are respectively hinged with the lifting plate, and the upper ends of the 2 angle modulation connecting rods are respectively hinged with the middle parts of outer angle arms of the bending execution mechanism;
The longitudinal position control mechanism comprises a second electric linear guide rail sliding table which is vertically arranged, the second electric linear guide rail sliding table is fixedly connected with the frame, the workpiece seat is connected with the second electric linear guide rail sliding table, the workpiece seat is provided with a horizontal groove for positioning a workpiece, a horizontally arranged compression cylinder is fixedly arranged on the rear side of the workpiece seat, and a piston rod of the compression cylinder extends into the horizontal groove.
2. The lapel shaper curved surface automatic bending machine as set forth in claim 1, wherein: the outer ends of the inner angle arms are provided with waist-shaped holes, and the outer ends of the inner angle arms are fixedly connected with the outer ends of the outer angle arms through the waist-shaped holes.
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CN202010816240.4A CN111889548B (en) | 2020-08-14 | 2020-08-14 | Curved surface automatic bending machine for lapel shaper |
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CN202010816240.4A CN111889548B (en) | 2020-08-14 | 2020-08-14 | Curved surface automatic bending machine for lapel shaper |
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CN114558979A (en) * | 2020-11-27 | 2022-05-31 | 台山市东扩钢构有限公司 | Simple buckling chain link bending device |
CN114558978B (en) * | 2020-11-27 | 2024-06-04 | 台山市东扩钢构有限公司 | Pedal type buckle-shaped chain link bending device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105728520A (en) * | 2014-12-11 | 2016-07-06 | 上海新宇箴诚电控科技有限公司 | Device for bending metal plate by any angle |
CN109290398A (en) * | 2017-07-25 | 2019-02-01 | 上海万盛保温容器有限公司 | Small-bore cylinder device for automatically molding and technique |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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GB703305A (en) * | 1949-12-06 | 1954-02-03 | Fairey Aviat Co Ltd | Improvements in or relating to the manufacture of complex structures of sheet material |
CN208991519U (en) * | 2018-08-22 | 2019-06-18 | 理工光大造船鄂州股份有限公司 | A kind of steel plate processing electric hydaulic bending machine |
CN210676640U (en) * | 2019-06-18 | 2020-06-05 | 翰备机械部件(太仓)有限公司 | Sheet metal working bending device convenient to angle regulation |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105728520A (en) * | 2014-12-11 | 2016-07-06 | 上海新宇箴诚电控科技有限公司 | Device for bending metal plate by any angle |
CN109290398A (en) * | 2017-07-25 | 2019-02-01 | 上海万盛保温容器有限公司 | Small-bore cylinder device for automatically molding and technique |
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