CN111112398A - Three-roller plate bending machine - Google Patents
Three-roller plate bending machine Download PDFInfo
- Publication number
- CN111112398A CN111112398A CN201911363254.9A CN201911363254A CN111112398A CN 111112398 A CN111112398 A CN 111112398A CN 201911363254 A CN201911363254 A CN 201911363254A CN 111112398 A CN111112398 A CN 111112398A
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- lifting
- seat
- worm
- roller
- plate
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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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/14—Bending sheet metal along straight lines, e.g. to form simple curves by passing between rollers
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- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a three-roller plate bending machine, which comprises a machine frame, two lower rollers, an upper roller and a lifting mechanism, wherein the lifting mechanism comprises a lifting motor, a lifting speed reducer and a transmission shaft, the worm gear drive assembly, the lead screw, first lift seat, second lift seat reaches last roller bearing frame, elevator motor is fixed in the frame bottom, elevator motor's output shaft passes through the shaft coupling and is connected with elevator reducer's input shaft, the output shaft of elevator reducer both sides passes through the shaft coupling and is connected with the transmission shaft one end that corresponds respectively, worm gear drive assembly is installed to each transmission shaft other end, the last vertical lead screw that is provided with of worm gear drive assembly, first lift seat and second lift seat are installed relatively in the frame, the bottom of first lift seat and second lift seat all is equipped with the silk hole that supplies the lead screw to wear to establish, the both ends of going up the roller are fixed in respectively on first lift seat and the second lift seat through going up the roller bearing frame. The three-roller plate bending machine is convenient to lift and adjust, and improves adjusting precision and working efficiency.
Description
Technical Field
The invention relates to a plate bending machine, in particular to a three-roller plate bending machine.
Background
The plate bending machine is a processing device for bending a metal plate into a required round shape, an arc shape or a cone shape, works by utilizing the principle of three-point rounding, and obtains a preset shape by adjusting the relative position between a side roller and an upper roller of the plate bending machine. The three-roller plate bending machine is divided into a mechanical type and a hydraulic type, and the mechanical type three-roller plate bending machine is divided into a symmetrical type and an asymmetrical type. The mechanical three-roller symmetric plate bending machine is characterized in that the machine is of a three-roller symmetric structure, an upper roller vertically moves at the central symmetric position of two lower rollers and is obtained through the transmission of a screw rod, a nut and a worm, the two lower rollers rotate and are meshed with a lower roller gear through an output gear of a speed reducer, and torque is provided for plate bending. The plastic metal plate with flat specification passes through three winding rollers of a plate bending machine, and is continuously bent for multiple times by means of the downward pressing of an upper roller and the rotating motion of a lower roller to generate permanent plastic deformation, so that the metal plate is rolled into a required cylinder, a required conical cylinder or a part of the cylinder and the conical cylinder.
At present, chinese patent publication No. CN205200252U discloses a three-roller type plate bending machine, which includes a base, a frame for supporting two ends of a plate bending roller, and a driving mechanism for driving the plate bending roller to rotate, wherein the plate bending roller includes an upper roller, two lower rollers disposed in a mirror image with respect to the upper roller and below the upper roller, the upper roller moves up and down through an adjusting mechanism, and the lower rollers move left and right through the adjusting mechanism. The vertical lifting movement of the upper winding roll of the three-roll plate bending machine at the central symmetrical position of the two lower winding rolls is obtained through the transmission of a screw rod, a nut and a worm, the manual adjustment is needed, the adjustment precision is insufficient, and meanwhile, the lifting speed is slow, so the working efficiency is seriously influenced.
Disclosure of Invention
In view of the above, the invention provides a three-roller plate bending machine, which is convenient for lifting adjustment and improves the adjustment precision and the working efficiency.
The technical solution scheme involved in the invention is as follows:
a three-roller plate bending machine comprises a machine frame, two lower rollers, an upper roller and a lifting mechanism, wherein the two lower rollers can be rotatably arranged on the machine frame relative to respective corresponding central axes, the two lower rollers are arranged in parallel, the upper roller is arranged above the space between the two lower rollers in a lifting way through the lifting mechanism, the lifting mechanism comprises a lifting motor, a lifting reducer, a transmission shaft, a worm and gear transmission assembly, a screw rod, a first lifting seat, a second lifting seat and an upper roller bearing seat, the lifting motor is fixed at the bottom of the machine frame, an output shaft of the lifting motor is connected with an input shaft of the lifting reducer through a coupler, output shafts at two sides of the lifting reducer are respectively connected with one end of the corresponding transmission shaft through the coupler, the worm and gear transmission assembly is arranged at the other end of each transmission shaft, the screw rod is vertically arranged, the bottom of first lift seat and second lift seat all is equipped with the silk hole that supplies the lead screw to wear to establish, goes up the both ends of roller and is fixed in respectively on first lift seat and the second lift seat through going up the roller bearing frame.
Furthermore, the frame includes the bottom plate and relatively fixes in two backup pads on the bottom plate, and two lower rolls and last roller are rotationally installed in two backup pads, and elevator motor and lifting reducer are fixed in on the bottom plate.
Further, the worm gear and worm transmission assembly comprises a worm gear, a worm and two worm bearings, two ends of the worm are rotatably mounted on the supporting plate through the two worm bearings respectively, one end of the worm is connected with the transmission shaft through the coupler, the worm gear is rotatably mounted on the supporting plate through the bottom end of the screw rod, and the worm gear and the worm are meshed and mounted.
Furthermore, each supporting plate is provided with a mounting opening for mounting a worm gear transmission assembly.
Further, the lead screw includes worm wheel shaft section and with worm wheel shaft section fixed connection's lead screw section, the center of worm wheel is fixed in to the worm wheel shaft section, the bottom of worm wheel shaft section runs through the worm wheel and rotationally installs in the backup pad.
Furthermore, the first lifting seat comprises a first supporting sleeve, a sliding block and a first thread sleeve which are fixedly connected in sequence, a space for fixing the upper roller bearing seat is formed in the first supporting sleeve, a sliding groove matched with the sliding block is formed in the supporting plate, the sliding block is arranged in the sliding groove in a lifting and sliding manner, and a guide hole communicated with the mounting opening is formed in the bottom surface of the sliding groove in the supporting plate so that the first thread sleeve can penetrate through and is connected with the screw rod section of the screw rod.
Further, the second lift seat supports cover, articulated seat and second thread bush including the second that connects gradually, and the top of second thread bush is articulated with articulated seat, is formed with the space that is used for fixed roller bearing frame in the second support cover, has seted up in the backup pad with articulated seat matched with spout, and articulated seat liftable sets up in the spout with sliding, and the bottom surface that lies in the spout in the backup pad is equipped with the communicating guide hole of installing port to supply the second thread bush to pass and be connected with the lead screw section of lead screw.
Further, the top end of the second threaded sleeve is provided with a hinge block, and the second threaded sleeve is hinged with the hinge seat through the hinge block.
Furthermore, a screw hole is formed in the second threaded sleeve, a fixing screw rod is screwed in the screw hole, the end of the fixing screw rod abuts against and fixes the upper roller bearing seat, and a preset moving space is formed between the upper end face of the upper roller bearing seat and the inner wall of the second support sleeve.
Further, the two lower rolls are driven to rotate by the driving device, the driving device comprises a driving motor, a speed reducer, an elastic pin coupler, a main gear and two driven gears, the driving motor and the speed reducer are sequentially fixed at one end, close to the first lifting seat, of the bottom of the rack, an output shaft of the driving motor is connected with an input shaft of the speed reducer through a coupler, an output shaft of the speed reducer is connected with a shaft of the main gear through the elastic pin coupler, the two driven gears are respectively fixed at the same ends of the two lower rolls, and the main gear is meshed with the two driven gears.
The three-roller plate bending machine is characterized in that an upper roller is arranged above a position between two lower rollers in a lifting manner through a lifting mechanism, the lifting mechanism is matched with a lifting motor, a lifting reducer, transmission shafts, a worm and gear transmission assembly, a screw rod, a first lifting seat, a second lifting seat and an upper roller bearing seat through the lifting mechanism, the power of the lifting motor is transmitted to the two transmission shafts through the lifting reducer, the two transmission shafts respectively transmit the power to the corresponding worm and gear transmission assemblies, the two worm and gear transmission assemblies respectively drive the corresponding screw rods to rotate, and the two screw rods respectively drive the first lifting seat and the second lifting seat to lift relative to a rack. Compared with the prior art, the structure is adopted, the lifting of the upper roller is conveniently and accurately and quickly adjusted, and the working efficiency is improved.
Drawings
FIG. 1 is a perspective view of a three-roll plate bending machine according to the present invention from a first perspective;
FIG. 2 is a perspective view of a third angle of view of the three-roll plate bending machine of the present invention;
FIG. 3 is a front view of the three-roll plate bending machine of the present invention;
FIG. 4 is an exploded view of the three-roll plate bending machine of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3;
fig. 6 is a cross-sectional view taken along line B-B of fig. 3.
Detailed Description
The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of the invention.
Referring to fig. 1 to 4, the present invention provides a three-roller plate bending machine, including a frame 1, two lower rollers 2, an upper roller 3 and a lifting mechanism 4, wherein the two lower rollers 2 are rotatably mounted on the frame 1 relative to their corresponding central axes, the two lower rollers 2 are arranged in parallel, the upper roller 3 is liftably mounted above the space between the two lower rollers 2 via the lifting mechanism 4, the lifting mechanism 4 includes a lifting motor 41, a lifting reducer 42, a transmission shaft 43, a worm and gear transmission assembly 44, a lead screw 45, a first lifting seat 46, a second lifting seat 47 and an upper roller bearing seat 48, the lifting motor 41 is fixed at the bottom of the frame 1, an output shaft of the lifting motor 41 is connected with an input shaft of the lifting reducer 42 via a coupling, output shafts at two sides of the lifting reducer 42 are respectively connected with one end of the corresponding transmission shaft 43 via a coupling, the other end of each transmission, the vertical lead screw 45 that is provided with on worm gear drive assembly 44, in order to change the horizontal axis direction rotary motion of transmission shaft 43 into the rotary motion of lead screw 45 axis direction, first lift seat 46 and second lift seat 47 are installed relatively in frame 1, and have the guide space of relative frame 1 lift, the bottom of first lift seat 46 and second lift seat 47 all is equipped with the silk hole with lead screw 45 matched with, two lead screws 45 are rotationally worn to locate respectively in the silk hole that corresponds the lift seat, go up the both ends of roller 3 and be fixed in respectively on first lift seat 46 and the second lift seat 47 through last roller bearing frame 48.
The invention provides a three-roller plate bending machine, wherein an upper roller 3 is arranged above a position between two lower rollers 2 in a lifting way through a lifting mechanism 4, the lifting mechanism 4 is matched with an upper roller bearing seat 48 through a lifting motor 41, a lifting reducer 42, transmission shafts 43, worm and gear transmission assemblies 44, a screw rod 45, a first lifting seat 46, a second lifting seat 47 and the upper roller bearing seat 48, the power of the lifting motor 41 is transmitted to the two transmission shafts 43 through the lifting reducer 42, the two transmission shafts 43 respectively transmit the power to the corresponding worm and gear transmission assemblies 44, the two worm and gear transmission assemblies 44 respectively drive the corresponding screw rods 45 to rotate, and the two screw rods 45 respectively drive the first lifting seat 46 and the second lifting seat 47 to lift relative to a machine frame 1. Compared with the prior art, the structure is adopted, the lifting of the upper roller 3 is conveniently and accurately and quickly adjusted, and the working efficiency is improved.
The frame 1 comprises a bottom plate 11 and two supporting plates 12 fixed on the bottom plate 11, two lower rollers 2 and two upper rollers 3 are rotatably mounted on the two supporting plates 12, and a lifting motor 41 and a lifting reducer 42 are fixed on the bottom plate 11.
The worm and gear assembly 44 includes a worm wheel 441, a worm 442 and two worm bearings 443, two ends of the worm 442 are rotatably mounted on the support plate 12 of the frame 1 through the two worm bearings 443, one end of the worm 442 is connected to the transmission shaft 43 through a coupling, the worm wheel 441 is rotatably mounted on the support plate 12 of the frame 1 through a bottom end of the screw rod 45, and the worm wheel 441 and the worm 442 are mounted in a meshed manner. Specifically, a mounting opening 13 is formed in each support plate 12 for mounting a worm gear assembly 44.
The screw 45 includes a worm shaft 451 and a screw 452 fixedly connected to the worm shaft 451, the worm shaft 451 is fixed to the center of the worm wheel 441, and the bottom end of the worm shaft 451 penetrates through the worm wheel 441 and is rotatably mounted on the support plate 12 of the frame 1.
Referring to fig. 5, the first lifting seat 46 includes a first supporting sleeve 461, a sliding block 462 and a first threaded sleeve 463 which are fixedly connected in sequence, a space for fixing the upper roller bearing seat 48 is formed on the first supporting sleeve 461, a sliding slot 14 matched with the sliding block 462 is formed on the supporting plate 12, the sliding block 462 is arranged in the sliding slot 14 in a lifting and sliding manner, a guide hole 15 communicated with the mounting hole 13 is formed on the bottom surface of the sliding slot 14 on the supporting plate 12, so that the first threaded sleeve 463 passes through and is connected with the screw rod section 452 of the screw rod 45. First thread bush 463 can play the effect of lift direction, and the rotation of cooperation lead screw 45 can realize going up and down of roller 3 accurately, steadily.
The first support sleeve 461 is provided with a screw hole, a fixing screw 464 is screwed in the screw hole, and the end of the fixing screw 464 abuts against and fixes the upper roller bearing seat 48 by screwing the fixing screw 464.
Referring to fig. 6, the second lifting seat 47 includes a second supporting sleeve 471, a hinge seat 472 and a second threaded sleeve 473, which are connected in sequence, wherein the top end of the second threaded sleeve 473 is hinged to the hinge seat 472, preferably, the top end of the second threaded sleeve 473 has a hinge block, and the second threaded sleeve 473 is hinged to the hinge seat 472 through the hinge block. A space for fixing the upper roller bearing seat 48 is formed on the second supporting sleeve 471, a sliding groove 14 matched with the hinge seat 472 is formed on the supporting plate 12, the hinge seat 472 is arranged in the sliding groove 14 in a lifting and sliding manner, and a guide hole 15 communicated with the mounting opening 13 is formed in the bottom surface of the sliding groove 14 on the supporting plate 12, so that the second thread sleeve 473 can pass through and be connected with the screw rod section 452 of the screw rod 45.
The second threaded sleeve 473 is provided with a screw hole, a fixing screw 464 is screwed in the screw hole, the end of the fixing screw 464 abuts against and fixes the upper roller bearing seat 48 by screwing the fixing screw 464, and a predetermined moving space is formed between the upper end surface of the upper roller bearing seat 48 and the inner wall of the second support sleeve 471.
By adopting the second lifting seat 47 with the above structure, when a processed workpiece (such as a rolled workpiece) needs to be taken out, the upper roller 3 is driven to lift for a certain distance by the lifting motor 41 to loosen the workpiece, then the second supporting sleeve 471 is pulled outwards by the fixing screw 464 by loosening the fixing screw 464 of the second lifting seat 47, and the second supporting sleeve 471 and the hinge seat 472 rotate relative to the hinge shaft of the second thread sleeve 473, so that the second supporting sleeve 471 is separated from the upper roller bearing seat 48. Therefore, the workpiece can be conveniently taken out from one end of the upper roller 3, and the operation is simple and rapid.
The three-roller plate bending machine further comprises a driving device 5 for driving the two lower rollers 2 to rotate, wherein the driving device 5 comprises a driving motor 51, a speed reducer 52, an elastic pin coupler 53, a main gear 54 and two slave gears 55, the driving motor 51 and the speed reducer 52 are sequentially fixed at one end, close to the first lifting seat 46, of the bottom of the machine frame 1, an output shaft of the driving motor 51 is connected with an input shaft of the speed reducer 52 through a coupler, an output shaft of the speed reducer 52 is connected with a shaft of the main gear 54 through the elastic pin coupler 53, the two slave gears 55 are respectively fixed at the same end of the two lower rollers 2, and the main gear 54 is meshed with the two slave gears 55 so as to drive the two slave gears 55 to synchronously operate.
In conclusion, the three-roller plate bending machine disclosed by the invention is convenient for accurately and quickly realizing lifting adjustment, is convenient for quickly taking out workpieces, and improves the working efficiency.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A three-roller plate bending machine comprises a machine frame (1), two lower rollers (2), an upper roller (3) and a lifting mechanism (4), wherein the two lower rollers (2) can be rotatably arranged on the machine frame (1) relative to corresponding central axes, the two lower rollers (2) are arranged in parallel, the upper roller (3) is arranged above the space between the two lower rollers (2) through the lifting mechanism (4) in a lifting way, the three-roller plate bending machine is characterized in that the lifting mechanism (4) comprises a lifting motor (41), a lifting reducer (42), a transmission shaft (43), a worm and gear transmission assembly (44), a screw rod (45), a first lifting seat (46), a second lifting seat (47) and an upper roller bearing seat (48), the lifting motor (41) is fixed at the bottom of the machine frame (1), an output shaft of the lifting motor (41) is connected with an input shaft of the lifting reducer (42) through a coupler, output shafts at two sides of the lifting reducer (42) are respectively connected with, worm gear drive assembly (44) are installed to each transmission shaft (43) other end, vertically on worm gear drive assembly (44) be provided with lead screw (45), first lift seat (46) and second lift seat (47) are installed relatively on frame (1), the bottom of first lift seat (46) and second lift seat (47) all is equipped with the silk hole that supplies lead screw (45) to wear to establish, the both ends of going up roller (3) are fixed in respectively on first lift seat (46) and second lift seat (47) through going up roller bearing frame (48).
2. The three-roller plate bending machine according to claim 1, wherein the machine frame (1) comprises a bottom plate (11) and two supporting plates (12) fixed on the bottom plate (11) relatively, the two lower rollers (2) and the two upper rollers (3) are rotatably arranged on the two supporting plates (12), and the lifting motor (41) and the lifting reducer (42) are fixed on the bottom plate (11).
3. The three-roll plate bending machine according to claim 2, wherein the worm gear and worm transmission assembly (44) comprises a worm wheel (441), a worm (442) and two worm bearings (443), two ends of the worm (442) are respectively rotatably mounted on the supporting plate (12) through the two worm bearings (443), one end of the worm (442) is connected with the transmission shaft (43) through a coupler, the worm wheel (441) is rotatably mounted on the supporting plate (12) through the bottom end of the screw rod (45), and the worm wheel (441) is mounted in mesh with the worm (442).
4. The three-roller plate bending machine according to claim 3, wherein each support plate (12) is provided with a mounting opening (13) for mounting a worm gear transmission assembly (44).
5. The three-roller plate rolling machine according to claim 3, characterized in that the screw rod (45) comprises a worm wheel shaft section (451) and a screw rod section (452) fixedly connected with the worm wheel shaft section (451), the worm wheel shaft section (451) is fixed at the center of the worm wheel (441), and the bottom end of the worm wheel shaft section (451) penetrates through the worm wheel (441) and is rotatably mounted on the support plate (12).
6. The three-roller plate rolling machine according to claim 4, wherein the first lifting seat (46) comprises a first supporting sleeve (461), a sliding block (462) and a first threaded sleeve (463) which are fixedly connected in sequence, a space for fixing the upper roller bearing seat (48) is formed on the first supporting sleeve (461), a sliding groove (14) matched with the sliding block (462) is formed in the supporting plate (12), the sliding block (462) is arranged in the sliding groove (14) in a lifting and sliding manner, and a guide hole (15) communicated with the mounting hole (13) is formed in the bottom surface, located on the sliding groove (14), of the supporting plate (12) so that the first threaded sleeve (463) can penetrate through and is connected with the screw rod section (452) of the screw rod (45).
7. The three-roller plate rolling machine according to claim 4, wherein the second lifting seat (47) comprises a second supporting sleeve (471), a hinged seat (472) and a second threaded sleeve (473) which are connected in sequence, the top end of the second threaded sleeve (473) is hinged to the hinged seat (472), a space for fixing the upper roller bearing seat (48) is formed in the second supporting sleeve (471), a sliding groove (14) matched with the hinged seat (472) is formed in the supporting plate (12), the hinged seat (472) is arranged in the sliding groove (14) in a lifting and sliding manner, and a guide hole (15) communicated with the mounting opening (13) is formed in the bottom surface, located on the sliding groove (14), of the supporting plate (12) so that the second threaded sleeve (473) can pass through and is connected with the screw rod section (452) of the screw rod (45).
8. The three-roller plate rolling machine as claimed in claim 7, wherein the top end of the second threaded sleeve (473) is provided with a hinge block, and the second threaded sleeve (473) is hinged with the hinge seat (472) through the hinge block.
9. The three-roller plate bending machine according to claim 7, wherein the second threaded sleeve (473) is provided with a screw hole, a fixing screw (464) is screwed in the screw hole, the end of the fixing screw (464) abuts against and fixes the upper roller bearing seat (48), and a predetermined movement space is formed between the upper end surface of the upper roller bearing seat (48) and the inner wall of the second support sleeve (471).
10. The three-roller plate rolling machine according to claim 1, characterized by further comprising a driving device (5) for driving the two lower rollers (2) to rotate, wherein the driving device (5) comprises a driving motor (51), a speed reducer (52), an elastic pin coupling (53), a main gear (54) and two slave gears (55), the driving motor (51) and the speed reducer (52) are sequentially fixed at one end of the bottom of the machine frame (1) close to the first lifting seat (46), an output shaft of the driving motor (51) is connected with an input shaft of the speed reducer (52) through the coupling, an output shaft of the speed reducer (52) is connected with a shaft of the main gear (54) through the elastic pin coupling (53), the two slave gears (55) are respectively fixed at the same end of the two lower rollers (2), and the main gear (54) is meshed with the two slave gears (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363254.9A CN111112398A (en) | 2019-12-26 | 2019-12-26 | Three-roller plate bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911363254.9A CN111112398A (en) | 2019-12-26 | 2019-12-26 | Three-roller plate bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111112398A true CN111112398A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911363254.9A Pending CN111112398A (en) | 2019-12-26 | 2019-12-26 | Three-roller plate bending machine |
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| Country | Link |
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| CN (1) | CN111112398A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246925A (en) * | 2020-09-25 | 2021-01-22 | 王悦 | Three-roller differential variable-curvature numerical control plate bending machine |
| CN112404188A (en) * | 2020-12-09 | 2021-02-26 | 常州工程职业技术学院 | Thin-wall component roll forming process and roll forming device |
| CN112642900A (en) * | 2020-12-02 | 2021-04-13 | 太原科技大学 | Common-roller type rolling equipment for metal polar plates |
| CN117531646A (en) * | 2024-01-05 | 2024-02-09 | 德州春祥包装制品有限公司 | Assembly with high-density reticular glue spreading roller group and structure thereof |
-
2019
- 2019-12-26 CN CN201911363254.9A patent/CN111112398A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112246925A (en) * | 2020-09-25 | 2021-01-22 | 王悦 | Three-roller differential variable-curvature numerical control plate bending machine |
| CN112642900A (en) * | 2020-12-02 | 2021-04-13 | 太原科技大学 | Common-roller type rolling equipment for metal polar plates |
| CN112404188A (en) * | 2020-12-09 | 2021-02-26 | 常州工程职业技术学院 | Thin-wall component roll forming process and roll forming device |
| CN117531646A (en) * | 2024-01-05 | 2024-02-09 | 德州春祥包装制品有限公司 | Assembly with high-density reticular glue spreading roller group and structure thereof |
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