CN202984367U - Double-roll full-automatic hydraulic roll round machine - Google Patents
Double-roll full-automatic hydraulic roll round machine Download PDFInfo
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- CN202984367U CN202984367U CN 201220683769 CN201220683769U CN202984367U CN 202984367 U CN202984367 U CN 202984367U CN 201220683769 CN201220683769 CN 201220683769 CN 201220683769 U CN201220683769 U CN 201220683769U CN 202984367 U CN202984367 U CN 202984367U
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Abstract
The utility model relates to a double-roll full-automatic hydraulic roll round machine which comprises a feeding device (8), levelling and guiding devices (1), a punching device (2), a rolling and forming device (3), a cut-out device (4), a support (5), a motor (6) and a speed reducer (7), wherein the levelling and guiding devices (1) are arranged on one side of the top of the support (5), the punching device (2) is arranged on the support (5) between the levelling and guiding devices (1), the rolling and forming device (3) is arranged at the top of the support (5), the rolling and forming device (3) comprises a lateral plate (31), an upper roller (37), a feeding wheel (33) and a bending wheel (34), the output end of the speed reducer (7) is connected with a chain wheel on the upper roller shaft (38); and the cut-out device (4) is arranged on the front side of the support (5). The double-roll full-automatic hydraulic roll round machine provided by the utility model integrates the functions of levelling and guiding, punching, rolling and forming, cutting and the like, has a compact and reasonable structure, is low in noise and stable in equipment running, has high production efficiency and is simple to operate.
Description
Technical field
The utility model relates to banded sheet material volume circle former, particularly two roller fully automatic hydraulic furling plate round machine.
Background technology
At present, the processing technology of steel drum hoop for barrel is all to produce according to traditional processing technology, i.e. moulding volume circle-cut-out-punch press punching-welding, and each operation is processed on different equipment respectively.Wherein the most complicated operation is moulding volume circle, moulding volume circle can be divided into manual volume circle and automatic rolling circle: manually the volume circle is that strip is fixed on the volume round roller, and artificial the pressure exerted pressure, and strip is attached on the volume round roller, take off strip, obtain the strip with arc section; The automatic rolling circle is that strip is placed on feed mechanism, rolls up the round roller group by driven by motor, and the compound action of volume round roller group is with strip volume circle.Manually the resulting hoop for barrel quality of volume circle is coarse, tends to occur the phenomenons such as burr, crimping, and wastes time and energy.Traditional volume circle production technology has following shortcoming: loaded down with trivial details, the related equipment of operation is many, waste a large amount of manpower and materials, production efficiency is low, cost is high and contaminated environment.
Chinese patent 200620095033.X discloses fast manual circular winder, main shaft is welded on framework platform central authorities, be processed with four uniform rectangular grooves on framework platform, can be used in home roll adjusting screw(rod) movable on rectangular groove with the home roll that diameter is changed locates fixing, rotary handle is contained on mainshaft, and secondary roller and the secondary roller adjusting screw(rod) that can move, be equipped with roller are contained in the groove of opening on rotary handle.By the manual rotation handle, drive home roll and rotate, with straight Metal Sheet in Curling.When the volume circular diameter changes, need to make the external diameter home roll identical with the volume circular diameter with thick steel plate, and the installation frame platform is central.The process of changing home roll allows the staff operate to waste time and energy more, and production efficiency is low.If often change home roll, easily cause the equipment operation unstable.
The utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, a kind of functions such as smoothing correcting, punching, roll forming and cut-out that integrate are provided, and compact conformation is reasonable, noise is low, equipment operates steadily, production efficiency is high and two roller fully automatic hydraulic furling plate round machine of environmental protection.
The purpose of this utility model is achieved through the following technical solutions: two roller fully automatic hydraulic furling plate round machine, and it comprises smoothing guide device, hole punched device, roll forming device, shearing device, support, the reductor and the hydraulic pump that are installed on the motor of frame bottom, are connected by conveyer belt with motor:
Described pay-off is arranged on charging aperture one side of smoothing guide device, pay-off comprises base, roller bearing, feeding roller and baffle plate, base fixes on the ground, roller bearing laterally is arranged on base top, feeding roller is arranged on roller bearing, the both sides of feeding roller evenly are provided with respectively the polylith baffle plate, and the clutch end of hydraulic pump is connected with roller bearing;
Described smoothing guide device is arranged on a side of a top of the trellis, the smoothing guide device comprises bearing, roller, chute, cover plate, upper corrector roll, lower corrector roll and governor motion, bearing is fixed on support, one side of bearing is provided with at least two rollers, the opposite side of bearing is provided with chute, the chute top is fixed with cover plate, chute is inner to be slidably matched with slide block, upper corrector roll is fixedly mounted on slide block, governor motion is connected with slide block, governor motion is connected by threaded engagement with cover plate, is positioned on the bearing under corrector roll also to be fixed with lower corrector roll;
Described hole punched device is arranged on the support of smoothing between guide device, hole punched device comprises punching frame, guide plate, hydraulic cylinder, pressure head, mould, leading screw and adjusting handle, punching frame and guide plate are fixedly linked by pressing plate, hydraulic cylinder is arranged at the perforating press top of the trellis, output and the pressure head of hydraulic cylinder are fixedly linked, mould is fixed on the punching frame by clamping cap, mould is positioned at below pressure head, leading screw one end is connected by threaded engagement with the punching frame, and the other end of leading screw is connected with adjusting handle;
described roll forming device is arranged at a top of the trellis, roll forming device comprises side plate, the moulding cover plate, adjusting screw, upper roller, drawing-inroller and bend wheel, two blocks of side plates stand on above support, the moulding cover plate is fixed on the side plate top, the two ends of many upper roller shafts are hinged with two blocks of side plates respectively, the end, two ends of upper roller shaft is fixed with respectively upper roller, the middle part of adjusting screw is connected by threaded engagement with the moulding cover plate, one end of adjusting screw is connected with the moulding adjusting handle, the other end and the upper roller shaft of adjusting screw are hinged, also be provided with the drawing-inroller tangent with the upper roller lower limb on side plate, also be provided with bend wheel on side plate, the output of reductor is connected by chain with sprocket wheel on upper roller shaft,
Described shearing device is arranged at the front of support, shearing device comprises installing plate, pull bar oil cylinder, guide holder, guide rod, die shoe, counterdie and drift, the pull bar oil cylinder is fixedly mounted on a side of installing plate, also be fixed with guide holder on installing plate, guide rod is slidably mounted on guide holder, and an end of guide rod is connected with the output shaft of pull bar oil cylinder, the other end of guide rod is connected with drift, be positioned on the installing plate of drift one side and be fixed with die shoe, counterdie is installed on die shoe, counterdie coordinates with drift.
Described motor is variable-frequency motor.
Described reductor is cycloidal planetary gear speed reducer.
Described smoothing guide device, hole punched device, shearing device have respectively two covers, and corresponding with the upper roller that is installed on upper roller shaft both sides respectively
The lower limb of the lower limb of described upper corrector roll, roller, pressure head and a plurality of upper rollers all is positioned on the same level line.
Also be provided with support wheel on described side plate, support wheel is positioned at bend wheel one side, and the axis of support wheel and the axis of drawing-inroller are positioned on the same level line.
Also be fixed with hydraulic oil container on described support, the oil-out of hydraulic oil container is connected with the oil-in of hydraulic pump.
The utlity model has following advantage:
1, automatic rolling machine described in the utility model integrates smoothing correcting, punching, volume circle and cuts off, and in frame bottom, power drive mechanism is set, and drives roll forming device, and compact conformation is reasonable.
2, all take hydraulic cylinder as power source, equipment operates steadily for hole punched device and shearing device, and noise is little.
3, in the both sides of upper roller shaft, upper roller is installed all, drives in the middle of adopting, smoothing guide device, hole punched device, shearing device all arrange two covers, and production efficiency improves significantly.
4, the two ends of hoop for barrel connect when truss, adopt snap close to connect to replace being welded to connect in the past, environmental protection and to operating personnel's health without harm.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the structure for amplifying schematic diagram of pay-off
Fig. 3 is the structure for amplifying schematic diagram of smoothing guide device
Fig. 4 is the structure for amplifying schematic diagram of hole punched device
Fig. 5 is the structure for amplifying schematic diagram of roll forming device
Fig. 6 is the structure for amplifying schematic diagram of shearing device
in figure: 1-smooths guide device, the 11-bearing, the 12-roller, the 13-chute, the 14-slide block, the 15-cover plate, the upper corrector roll of 16-, corrector roll under 17-, the 18-governor motion, the 2-hole punched device, 21-punching frame, the 22-guide plate, the 23-pressing plate, the 24-hydraulic cylinder, the 25-pressure head, the 26-mould, the 27-clamping cap, the 28-leading screw, the 29-adjusting handle, the 3-roll forming device, the 31-side plate, the 32-cover plate, the 33-drawing-inroller, the 34-bend wheel, the 35-support wheel, the 36-adjusting screw, the 37-upper roller, the 38-upper roller shaft, 39-moulding adjusting handle, the 4-shearing device, the 41-installing plate, 42-pull bar oil cylinder, the 43-guide holder, the 44-guide rod, the 45-die shoe, the 46-counterdie, the 47-drift, the 5-support, the 6-motor, the 7-reductor, the 8-pay-off, the 81-base, the 82-roller bearing, the 83-feeding roller, the 84-baffle plate, the 9-hydraulic pump, the 10-hydraulic oil container.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, two roller fully automatic hydraulic furling plate round machine, it comprises smoothing guide device 1, hole punched device 2, roll forming device 3, shearing device 4, support 5, the reductor 7 and the hydraulic pump 9 that are installed on the motor 6 of support 5 bottoms, are connected by conveyer belt with motor 6, also be fixed with hydraulic oil container 10 on support 5, the oil-out of hydraulic oil container 10 is connected with the oil-in of hydraulic pump 9:
Pay-off 8 is arranged on charging aperture one side of smoothing guide device 1, as shown in Figure 2, pay-off 8 comprises base 81, roller bearing 82, feeding roller 83 and baffle plate 84, base 81 fixes on the ground, roller bearing 82 laterally is arranged on base 81 tops, feeding roller 83 is arranged on roller bearing 82, and the both sides of feeding roller 83 evenly are provided with respectively polylith baffle plate 84, and the clutch end of hydraulic pump 9 is connected with roller bearing 82;
smoothing guide device 1 is arranged on a side at support 5 tops, as shown in Figure 3, smoothing guide device 1 comprises bearing 11, roller 12, chute 13, cover plate 15, upper corrector roll 16, lower corrector roll 17 and governor motion 18, bearing 11 is fixed on support 5, one side of bearing 11 is provided with at least two rollers 12, the opposite side of bearing 11 is provided with chute 13, chute 13 tops are fixed with cover plate 15, chute 13 is inner to be slidably matched with slide block 14, upper corrector roll 16 is fixedly mounted on slide block 14, governor motion 18 is connected with slide block 14, governor motion 18 is connected by threaded engagement with cover plate 15, be positioned on the bearing 11 under corrector roll 16 and also be fixed with lower corrector roll 17,
hole punched device 2 is arranged on the support 5 of smoothing between guide device 1, as shown in Figure 4, hole punched device 2 comprises punching frame 21, guide plate 22, hydraulic cylinder 24, pressure head 25, mould 26, leading screw 28 and adjusting handle 29, punching frame 21 is fixedly linked by pressing plate 23 with guide plate 22, hydraulic cylinder 24 is arranged at punching frame 21 tops, the output of hydraulic cylinder 24 and pressure head 25 are fixedly linked, mould 26 is fixed on punching frame 21 by clamping cap 27, mould 26 is positioned at pressure head 25 belows, leading screw 28 1 ends are connected by threaded engagement with punching frame 21, the other end of leading screw 28 is connected with adjusting handle 29,
roll forming device 3 is arranged at support 5 tops, as shown in Figure 5, roll forming device 3 comprises side plate 31, moulding cover plate 32, adjusting screw 36, upper roller 37, drawing-inroller 33 and bend wheel 34, two blocks of side plates 31 stand on support 5 tops, moulding cover plate 32 is fixed on side plate 31 tops, the two ends of many upper roller shafts 38 are hinged with two blocks of side plates 31 respectively, the end, two ends of upper roller shaft 38 is fixed with respectively upper roller 37, the middle part of adjusting screw 36 is connected by threaded engagement with moulding cover plate 32, one end of adjusting screw 36 is connected with moulding adjusting handle 39, the other end of adjusting screw 36 and upper roller shaft 38 are hinged, also be provided with the drawing-inroller 33 tangent with upper roller 37 lower limbs on side plate 31, also be provided with bend wheel 34 on side plate 31, the output of reductor 7 is connected by chain with sprocket wheel on upper roller shaft 38, also is provided with support wheel 35 on side plate 31, and support wheel 35 is positioned at bend wheel 34 1 sides, and the axis of the axis of support wheel 35 and drawing-inroller 33 is positioned on the same level line,
shearing device 4 is arranged at the front of support 5, as shown in Figure 6, shearing device 4 comprises installing plate 41, pull bar oil cylinder 42, guide holder 43, guide rod 44, die shoe 45, counterdie 46 and drift 47, pull bar oil cylinder 42 is fixedly mounted on a side of installing plate 41, also be fixed with guide holder 43 on installing plate 41, guide rod 44 is slidably mounted on guide holder 43, one end of guide rod 44 is connected with the output shaft of pull bar oil cylinder 42, the other end of guide rod 44 is connected with drift 47, be positioned on the installing plate 41 of drift 47 1 sides and be fixed with die shoe 45, counterdie 46 is installed on die shoe 45, counterdie 46 coordinates with drift 47.
Smoothing guide device 1, hole punched device 2, shearing device 4 have respectively two covers, and corresponding with the upper roller 37 that is installed on upper roller shaft 38 both sides respectively; The lower limb of upper corrector roll 16, roller 12, pressure head 25 all are positioned on the same level line with the lower limb of a plurality of upper rollers 37.
Wherein: motor 6 is variable-frequency motor, and reductor 7 is cycloidal planetary gear speed reducer.
the course of work of the present utility model is as follows: an end that will be wrapped in the band material on feeding roller 83 is placed in the charging aperture of smoothing guide device 1, drive feeding roller 83 feedings by hydraulic pump 9, the position of corrector roll 16 in adjusting, make the distance between corrector roll 16 and lower corrector roll 17 identical with the thickness of band material, strip passes the below of pressure head 25, the action parameter of hydraulic cylinder 24 is set, make the regular interruption undershoot of pressure head 25, the girth apart from hoop for barrel between the punching that obtains and punching, the band material is through the synergy of upper roller 37 and drawing-inroller 33, deliver to bend wheel 34 belows, act on simultaneously with support wheel 35, to be with material volume circle, when strip forms a circumference, pull bar oil cylinder 42 promote drifts 47 and with form shear action with counterdie 46, to be with material to cut off, obtain two ends with the hoop for barrel of punching.
Claims (7)
1. two roller fully automatic hydraulic furling plate round machine is characterized in that: reductor (7) and hydraulic pump (9) that it comprises pay-off (8), smoothing guide device (1), hole punched device (2), roll forming device (3), shearing device (4), support (5), is installed on the motor (6) of support (5) bottom, be connected by conveyer belt with motor (6):
Described pay-off (8) is arranged on charging aperture one side of smoothing guide device (1), pay-off (8) comprises base (81), roller bearing (82), feeding roller (83) and baffle plate (84), base (81) fixes on the ground, roller bearing (82) laterally is arranged on base (81) top, feeding roller (83) is arranged on roller bearing (82), the both sides of feeding roller (83) evenly are provided with respectively polylith baffle plate (84), and the clutch end of hydraulic pump (9) is connected with roller bearing (82);
described smoothing guide device (1) is arranged on a side at support (5) top, smoothing guide device (1) comprises bearing (11), roller (12), chute (13), cover plate (15), upper corrector roll (16), lower corrector roll (17) and governor motion (18), bearing (11) is fixed on support (5), one side of bearing (11) is provided with at least two rollers (12), the opposite side of bearing (11) is provided with chute (13), chute (13) top is fixed with cover plate (15), chute (13) is inner to be slidably matched with slide block (14), upper corrector roll (16) is fixedly mounted on slide block (14), governor motion (18) is connected with slide block (14), governor motion (18) is connected by threaded engagement with cover plate (15), be positioned on the bearing (11) under corrector roll (16) and also be fixed with lower corrector roll (17),
described hole punched device (2) is arranged on the support (5) of smoothing between guide device (1), hole punched device (2) comprises punching frame (21), guide plate (22), hydraulic cylinder (24), pressure head (25), mould (26), leading screw (28) and adjusting handle (29), punching frame (21) is fixedly linked by pressing plate (23) with guide plate (22), hydraulic cylinder (24) is arranged at punching frame (21) top, the output of hydraulic cylinder (24) and pressure head (25) are fixedly linked, mould (26) is fixed on punching frame (21) by clamping cap (27), mould (26) is positioned at below pressure head (25), leading screw (28) one ends are connected by threaded engagement with punching frame (21), the other end of leading screw (28) is connected with adjusting handle (29),
described roll forming device (3) is arranged at support (5) top, roll forming device (3) comprises side plate (31), moulding cover plate (32), adjusting screw (36), upper roller (37), drawing-inroller (33) and bend wheel (34), two blocks of side plates (31) stand on above support (5), moulding cover plate (32) is fixed on side plate (31) top, the two ends of many upper roller shafts (38) are hinged with two blocks of side plates (31) respectively, the end, two ends of upper roller shaft (38) is fixed with respectively upper roller (37), the middle part of adjusting screw (36) is connected by threaded engagement with moulding cover plate (32), one end of adjusting screw (36) is connected with moulding adjusting handle (39), the other end of adjusting screw (36) and upper roller shaft (38) are hinged, also be provided with the drawing-inroller (33) tangent with upper roller (37) lower limb on side plate (31), also be provided with bend wheel (34) on side plate (31), the output of reductor (7) is connected by chain with sprocket wheel on upper roller shaft (38),
described shearing device (4) is arranged at the front of support (5), shearing device (4) comprises installing plate (41), pull bar oil cylinder (42), guide holder (43), guide rod (44), die shoe (45), counterdie (46) and drift (47), pull bar oil cylinder (42) is fixedly mounted on a side of installing plate (41), also be fixed with guide holder (43) on installing plate (41), guide rod (44) is slidably mounted on guide holder (43), one end of guide rod (44) is connected with the output shaft of pull bar oil cylinder (42), the other end of guide rod (44) is connected with drift (47), be positioned on the installing plate (41) of drift (47) one sides and be fixed with die shoe (45), counterdie (46) is installed on die shoe (45), counterdie (46) coordinates with drift (47).
2. according to claim 1 pair of roller fully automatic hydraulic furling plate round machine, it is characterized in that: described motor (6) is variable-frequency motor.
3. according to claim 1 pair of roller fully automatic hydraulic furling plate round machine, it is characterized in that: described reductor (7) is cycloidal planetary gear speed reducer.
4. according to claim 1 pair of roller fully automatic hydraulic furling plate round machine, it is characterized in that: described smoothing guide device (1), hole punched device (2), shearing device (4) have respectively two covers, and corresponding with the upper roller (37) that is installed on upper roller shaft (38) both sides respectively.
5. according to claim 1 pair of roller fully automatic hydraulic furling plate round machine is characterized in that: the lower limb of described upper corrector roll (16), roller (12), pressure head (25) all are positioned on the same level line with the lower limb of a plurality of upper rollers (37).
6. according to claim 1 pair of roller fully automatic hydraulic furling plate round machine, it is characterized in that: also be provided with support wheel (35) on described side plate (31), support wheel (35) is positioned at bend wheel (34) one sides, and the axis of the axis of support wheel (35) and drawing-inroller (33) is positioned on the same level line.
7. according to claim 1 pair of roller fully automatic hydraulic furling plate round machine, it is characterized in that: also be fixed with hydraulic oil container (10) on described support (5), the oil-out of hydraulic oil container (10) is connected with the oil-in of hydraulic pump (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683769 CN202984367U (en) | 2012-12-12 | 2012-12-12 | Double-roll full-automatic hydraulic roll round machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683769 CN202984367U (en) | 2012-12-12 | 2012-12-12 | Double-roll full-automatic hydraulic roll round machine |
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| Publication Number | Publication Date |
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| CN202984367U true CN202984367U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683769 Expired - Fee Related CN202984367U (en) | 2012-12-12 | 2012-12-12 | Double-roll full-automatic hydraulic roll round machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202984367U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950176A (en) * | 2012-12-12 | 2013-03-06 | 西华大学 | Dual-roller full-automatic hydraulic rolling machine |
| CN104772406A (en) * | 2015-02-28 | 2015-07-15 | 宁波郎泰机械有限公司 | Edge rolling machine |
| CN105855327A (en) * | 2016-06-02 | 2016-08-17 | 新昌县羽林街道上大轴承厂 | Automatic feeding type metal plate straightening machine special for machining |
| CN105904221A (en) * | 2016-06-22 | 2016-08-31 | 厦门翼竑工贸有限公司 | Frameless wiper blade sheet steel forming and cutting-off all-in-one machine |
| CN106739039A (en) * | 2016-12-05 | 2017-05-31 | 东莞市普华精密机械有限公司 | A kind of automatic pipebender of plastic tube |
| CN107413899A (en) * | 2017-08-07 | 2017-12-01 | 朱洪亮 | A kind of bending-forming apparatus of water heater heat-insulating shield |
| CN109158445A (en) * | 2018-08-27 | 2019-01-08 | 安徽千载佳科技有限公司 | A kind of automatic uncoiler of hardware machinery processing |
| CN111974837A (en) * | 2020-08-21 | 2020-11-24 | 王振安 | Correcting type forming device for spiral pipe production and using method thereof |
| CN112170682A (en) * | 2020-09-18 | 2021-01-05 | 衢州学院 | Conveying device and metal coiled material leveling transverse cutting machine |
| CN117960912A (en) * | 2024-03-05 | 2024-05-03 | 广东元晟智能装备制造有限公司 | Five-roller rounding machine for angle iron and rounding method |
-
2012
- 2012-12-12 CN CN 201220683769 patent/CN202984367U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950176A (en) * | 2012-12-12 | 2013-03-06 | 西华大学 | Dual-roller full-automatic hydraulic rolling machine |
| CN102950176B (en) * | 2012-12-12 | 2014-12-10 | 西华大学 | Dual-roller full-automatic hydraulic rolling machine |
| CN104772406A (en) * | 2015-02-28 | 2015-07-15 | 宁波郎泰机械有限公司 | Edge rolling machine |
| CN104772406B (en) * | 2015-02-28 | 2016-06-22 | 宁波郎泰机械有限公司 | A kind of furling plate round machine |
| CN105855327A (en) * | 2016-06-02 | 2016-08-17 | 新昌县羽林街道上大轴承厂 | Automatic feeding type metal plate straightening machine special for machining |
| CN105904221A (en) * | 2016-06-22 | 2016-08-31 | 厦门翼竑工贸有限公司 | Frameless wiper blade sheet steel forming and cutting-off all-in-one machine |
| CN106739039A (en) * | 2016-12-05 | 2017-05-31 | 东莞市普华精密机械有限公司 | A kind of automatic pipebender of plastic tube |
| CN107413899A (en) * | 2017-08-07 | 2017-12-01 | 朱洪亮 | A kind of bending-forming apparatus of water heater heat-insulating shield |
| CN109158445A (en) * | 2018-08-27 | 2019-01-08 | 安徽千载佳科技有限公司 | A kind of automatic uncoiler of hardware machinery processing |
| CN111974837A (en) * | 2020-08-21 | 2020-11-24 | 王振安 | Correcting type forming device for spiral pipe production and using method thereof |
| CN112170682A (en) * | 2020-09-18 | 2021-01-05 | 衢州学院 | Conveying device and metal coiled material leveling transverse cutting machine |
| CN117960912A (en) * | 2024-03-05 | 2024-05-03 | 广东元晟智能装备制造有限公司 | Five-roller rounding machine for angle iron and rounding method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20141212 |
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| EXPY | Termination of patent right or utility model |