CN103753062A - Special pipe welding device - Google Patents
Special pipe welding device Download PDFInfo
- Publication number
- CN103753062A CN103753062A CN201310734715.5A CN201310734715A CN103753062A CN 103753062 A CN103753062 A CN 103753062A CN 201310734715 A CN201310734715 A CN 201310734715A CN 103753062 A CN103753062 A CN 103753062A
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- Prior art keywords
- welding gun
- travel switch
- welding
- steel pipe
- normally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0247—Driving means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0252—Steering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0276—Carriages for supporting the welding or cutting element for working on or in tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/10—Pipe-lines
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a special pipe welding device. The special pipe welding device comprises a front dragging machine for steel pipe conveying, a rear dragging machine for steel pipe conveying, a welding gun and a welding gun rotating device; a steel pipe which needs to be welded is dragged forward and conveyed to the position of the welding gun through the front dragging machine; another section of steel pipe, which needs to be welded, is dragged backward and conveyed to the position of the welding gun through the rear dragging machine; the welding gun is connected with the welding gun rotating device which is used for driving the welding gun to rotate. According to the special pipe welding device, the welding gun rotates through the welding gun rotating device automatically, independent operation can be performed by one person, the welding time is half of the original welding time, and accordingly the labor cost is saved, the labor time is reduced, the efficiency is improved, and the degree of automation of the industry is improved.
Description
Technical field
The present invention relates to a kind of welder, relate in particular to a kind of pipe special welder.
Background technology
Pipeline welding at present adopts annular solder mode, because pipeline is longer, in welding process, cannot clamp rotation, needs by manually carrying out scene, butt welding of steel tube to be connect, or after welded flange, uses bolt to connect.Owing to manually welding, needs 2 people coordinate always and efficiency is lower, and artificial welding also cannot be ensured the quality of products.
Summary of the invention
The object of this invention is to provide a kind of pipe special welder, can improve welding efficiency, automaticity is high.
The present invention adopts following technical proposals: a kind of pipe special welder, comprise front haulage machine, the rear haulage machine of conveying steel pipe, welding gun, the welding gun whirligig of conveying steel pipe, described front haulage machine is delivered to welding gun place by the steel pipe of needs welding to front haulage, described rear haulage machine is delivered to welding gun place by another section of steel pipe of needs welding to rear haulage, and described welding gun is connected with the welding gun whirligig that drives welding gun rotation.
Described front haulage machine is delivered to welding gun place by the steel pipe of needs welding by chuck.
Described welding gun whirligig includes motor, circuit for controlling motor, reductor, drive sprocket, driven sprocket, support, rotating shaft, rotating disc, described motor via reducer connects drive sprocket, drive sprocket and driven sprocket are in transmission connection, the axle of driven sprocket is connected with rotating shaft, described rotating disc is set on rotating shaft, and described welding gun is fixed on rotating disc.
Described welding gun is fixed on rotating disc by welding gun fixed adjustment device.
Described rear haulage machine carries by welding gun whirligig another section of steel pipe of needs welding backward to welding gun place, and wherein the axle of driven sprocket and rotating shaft are hollow shaft, and rear haulage machine passes hollow shaft to welding gun place by another section of steel pipe of needs welding.
In described rotating shaft, be provided with the conical guiding sleeve for firm steel pipe, described rotating shaft is outside equipped with pipe tire and joins type flange.
Described circuit for controlling motor includes frequency converter, motor positive inversion control circuit, forward travel switch, reversion travel switch, limit travel switch, and described forward travel switch, the collision block of reversion travel switch are separately positioned on the positive and negative of rotating disc.
Described positive and reverse rotation control circuit includes knife-like switch, the first fuse, electrothermal relay, and described knife-like switch connects the signal input part of frequency converter by the first fuse, and the signal output part of frequency converter connects motor by electrothermal relay coil; The first end of the first fuse connects the second fuse by output normally-closed contact RB1, the RC1 of frequency converter.The second fuse other end is connected with normally-closed contact, shutdown switch, the limit travel switch of electrothermal relay in turn, the other end of limit travel switch connects forward button, forward button is connected in series the second end that connects the first fuse after the coil of forward limit travel switch normally-closed contact, the normally-closed contact of reversion contactor, positive contactor successively, and wherein the two ends of forward button are parallel with the first normally opened contact of positive contactor, the normally opened contact of inversion limitation travel switch; Wherein the second normally opened contact of positive contactor is connected between the FWD end and DCM end of frequency converter;
The other end of described limit travel switch also connects invert button, invert button is connected in series the second end that connects the first fuse after the coil of normally-closed contact, reversion contactor of inversion limitation travel switch normally-closed contact, positive contactor successively, and wherein the two ends of invert button are parallel with the first normally opened contact of reversion contactor, the normally opened contact of forward limit travel switch; Between the REV end that the second normally opened contact of contactor of wherein reversing is connected on frequency converter is held with DCM.
The present invention is rotated welding gun automatically by welding whirligig, does not need many people to coordinate always, and a people gets final product independent operation, weld interval is than shortening one times former weld interval, thereby saving human cost reduces working time, raise the efficiency, also promote the automaticity of industry.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing in Fig. 1;
Fig. 3 is the structural representation of two travel switches in the present invention;
Fig. 4 is the scheme of installation of limit travel switch in the present invention;
Fig. 5 is the schematic diagram of circuit for controlling motor.
The specific embodiment
As Fig. 1, shown in Fig. 2, the invention discloses a kind of pipe special welder, comprise the front haulage machine 12 of conveying steel pipe, the rear haulage machine 3 of conveying steel pipe, welding gun 8, welding gun whirligig, described front haulage machine 12 passes through chuck 11(endoporus aperture 300mm by the steel pipe of needs welding, adjust pipeline centering and be convenient to welding accurately) to front haulage, be delivered to welding gun 8 places, described rear haulage machine 3 is delivered to welding gun 8 places to rear haulage by welding gun whirligig by another section of steel pipe of needs welding, described welding gun 8 is connected with the welding gun whirligig that drives welding gun rotation.
Described welding gun whirligig includes motor, circuit for controlling motor, reductor 2, drive sprocket 1, driven sprocket 5, support, rotating shaft, rotating disc 6, described motor via reducer 2 connects drive sprocket 1, drive sprocket 1 is in transmission connection by chain 4 with driven sprocket 5, the axle of driven sprocket 5 is connected with rotating shaft, described rotating disc 6 is set on rotating shaft, described welding gun 8 is fixed on rotating disc 6 by welding gun fixed adjustment device 9, wherein welding gun fixed adjustment device adopts screw thread transmission, use the distance of manually adjusting (fine setting) welding gun 8 and workpiece.Wherein the axle of driven sprocket 5 and rotating shaft are hollow shaft, and rear haulage machine passes hollow shaft to welding gun place by another section of steel pipe of needs welding.In wherein said rotating shaft, be provided with the conical guiding sleeve 8 for firm steel pipe, described rotating shaft is outside equipped with pipe tire and joins type flange 7.
Welding gun is selected carbon dioxide gas shielded welding machine, design parameter: Power supply 380V/50Hz, specified input capacity 31.9KVA; floating voltage 66V, maximum weld electric current 60-500A, operating voltage 17-35V; rated duty cycle 60%, comprises wire-feed motor, and its wire feed rate is consistent with speed of welding.
Described circuit for controlling motor includes frequency converter, motor positive inversion control circuit, forward travel switch, reversion travel switch, as shown in Figure 3, Figure 4, described forward travel switch 51, the collision block 81,82 of reversion travel switch 61 are separately positioned on the positive and negative of rotating disc 6, together rotate with rotating disc welding gun assembly.Travel switch mounting plate 41 is fixed on the floor installation plate of welder.Utmost point limitation travel switch 11(SQ3) also for positive and negative layout, (forward travel switch 51, reversion travel switch 61 are arranged on travel switch mounting plate 41 fronts with forward travel switch 51, reversion travel switch 61, limit travel switch 11 is arranged on the back side of travel switch mounting plate 41,21,31 is screw, nut, when rotating disc forward, by stroke collision block, press SQ1, send signal, motor reversal, presses SQ2 motor commutation after counter circling.SQ3 is limit travel switch, avoid SQ1 and SQ2 failuring delay motor always forward or reverse break welding gun line.
As shown in Figure 5, described positive and reverse rotation control circuit includes knife-like switch QS, the first fuse FU1, electrothermal relay FR, described knife-like switch QS connects the signal input part (R, S, T) of frequency converter by the first fuse FU1, the signal output part (U, V, W) of frequency converter connects motor M by electrothermal relay coil FR; The first end of the first fuse FU1 is vacant normally opened contact by output normally-closed contact RB1, the RC1(RA1 of frequency converter) connection the second fuse FU2.The second fuse FU2 other end is connected with normally-closed contact FR1, shutdown switch SB3, the limit travel switch S Q3 of electrothermal relay in turn, the other end of limit travel switch S Q3 connects forward button SB1, forward button SB1 is connected in series the second end that connects the first fuse FU1 after the coil KM1 of forward limit travel switch normally-closed contact SQ1, the normally-closed contact KM22 of reversion contactor, positive contactor successively, and wherein the two ends of forward button SB1 are parallel with the first normally opened contact KM11 of positive contactor, the normally opened contact SQ2 of inversion limitation travel switch; Wherein the second normally opened contact KM13 of positive contactor is connected between the FWD end and DCM end of frequency converter.
The other end of described limit travel switch S Q3 also connects invert button SB2, invert button SB2 is connected in series the second end that connects the first fuse FU2 after the coil KM2 of normally-closed contact KM12, reversion contactor of inversion limitation travel switch normally-closed contact SQ2, positive contactor successively, and wherein the two ends of invert button SB2 are parallel with the first normally opened contact KM21, the normally opened contact SQ1 of forward limit travel switch of reversion contactor; Between the REV end that the second normally opened contact KM23 of contactor of wherein reversing is connected on frequency converter is held with DCM.+ 10V power supply signal is provided by frequency converter, and the given signal of frequency is by regulating its sliding contact AVI to obtain.
The present invention will be described as example for pipeline take diameter as 100mm: when needs weld, by front haulage machine 12, steel pipe is carried by chuck 11, rear haulage machine 3 steel pipe by the fairlead 8 in axle and the rotating shaft of driven sprocket 5 to welding gun 9 places, when the end of steel pipe is walked to the position of welding gun during in same plumb line left and right 20mm, rear haulage machine 3, front haulage machine 12 stop action, and at this moment operator joins type flange 7 by pipeline pipe tire and loads onto steel pipe.The center that use chuck 10 is adjusted steel pipe is on same level line, after completing, adjustment passes through to adjust welding gun fixed adjustment device, guarantee that welding gun and pipe tire join the distance of type flange 7, after being fixed on rotating disc, welding gun fixed adjustment device needs to carry out statically balanced correction work, at the rotating disc of welding gun bearing, cross opposite, the center of circle and carry out counterweight, be convenient to the uniformity of its speed of welding.After steel pipe is stable, start reductor 2, this reductor 2 is that twin-stage cycloid pin gear planet speed reducer speed ratio is 1/319, and maximum (top) speed is 4.3r/min, and transmission is after the driven sprocket 5 of drive sprocket 1 and 51 teeth of 20 teeth, and maximal rate fades to 2r/min.During welding, welding gun 9 welds around the rotation of steel pipe center line.Weld after one week, due to the control action of rotating, can reverse and weld for the second time.When reversion appears in rotating disc rotation, in the time of cannot exiting due to the cable winding of welding gun, need operator to carry out manually welding machine line and wire feed string pendulum being put correctly.After having welded, by hauling machine 3, oppositely steel pipe is transferred out.Wherein, the mode of hauling machine clamping steel pipe is upwards jack-up clamping of cylinder, two main motors all use frequency control, gauge tap of the present invention adopts button box form, the operating button box of two hauling machines and speed governing button center and welding gun are in same plumb line 50-100mm left and right, convenient operation.On button box, there is activation button up and down, start welding and stop button, on button box, be also provided with scram button.
After having welded, need to carry out grinding process, whirligig has 1.1 meters to the distance between rear haulage machine, after having welded, steel pipe is transported to herein and is polished.Start the welding job of Section three, and start successively to repeat.
In the time need to welding the pipeline of other specification, can change that pipeline is joined fairlead of duct arrangement of type flange and every kind of specification of fairlead and flange is convenient to the welding of steel pipe centering.100mm and above pipeline are because its rigidity does not need greatly special type flange and the fairlead of joining.
In order to make the speed of welding controlled, the frequency converter of access is used for adjusting motor speed.The control procedure of rotating is as described below: press forward button SB1, forward contactor coil KM1 energized action, its normally-closed contact KM12 disconnects, the normally opened contact KM13 closure being connected with frequency converter terminal FWD, the built-in change-over circuit work of frequency converter, motor M starts forward.When driven by motor rotating disc and stroke collision block are depressed forward limit travel switch S Q1, normally-closed contact SQ1 disconnects, forward contactor coil KM1 dead electricity.Meanwhile, normally opened contact SQ1 closure, reversion contactor coil KM2 obtains electric, and the normally opened contact KM13 being connected with FWD disconnects.Reversion contactor coil KM2 obtain electric after, the normally opened contact KM23 closure being connected with frequency converter REV, the built-in change-over circuit work of frequency converter, motor starts reversion.When after counter circling, stroke collision block is depressed SQ2, and its operation principle is consistent during with positive and negative conversion.If need to shut down, can press SB3 press button, forward contactor coil KM1, reversion contactor coil KM2 are all in power failure state.When as found, forward limit travel switch S Q1, inversion limitation travel switch SQ2 all lost efficacy, rotating disc is pressed limit travel switch S Q3, and forward contactor coil KM1, reversion contactor coil KM2 are opened circuit.
Claims (9)
1. a pipe special welder, it is characterized in that: the front haulage machine, the rear haulage machine of conveying steel pipe, welding gun, the welding gun whirligig that comprise conveying steel pipe, described front haulage machine is delivered to welding gun place by the steel pipe of needs welding to front haulage, described rear haulage machine is delivered to welding gun place by another section of steel pipe of needs welding to rear haulage, and described welding gun is connected with the welding gun whirligig that drives welding gun rotation.
2. pipe special welder according to claim 1, is characterized in that: described front haulage machine is delivered to welding gun place by the steel pipe of needs welding by chuck.
3. pipe special welder according to claim 1 and 2, it is characterized in that: described welding gun whirligig includes motor, circuit for controlling motor, reductor, drive sprocket, driven sprocket, support, rotating shaft, rotating disc, described motor via reducer connects drive sprocket, drive sprocket and driven sprocket are in transmission connection, the axle of driven sprocket is connected with rotating shaft, described rotating disc is set on rotating shaft, and described welding gun is fixed on rotating disc.
4. pipe special welder according to claim 3, is characterized in that: described welding gun is fixed on rotating disc by welding gun fixed adjustment device.
5. pipe special welder according to claim 4, it is characterized in that: described rear haulage machine carries by welding gun whirligig another section of steel pipe of needs welding backward to welding gun place, wherein the axle of driven sprocket and rotating shaft are hollow shaft, and rear haulage machine passes hollow shaft to welding gun place by another section of steel pipe of needs welding.
6. pipe special welder according to claim 5, is characterized in that: in described rotating shaft, be provided with the conical guiding sleeve for firm steel pipe, described rotating shaft is outside equipped with pipe tire and joins type flange.
7. pipe special welder according to claim 6, it is characterized in that: described circuit for controlling motor includes frequency converter, motor positive inversion control circuit, forward travel switch, reversion travel switch, limit travel switch, described forward travel switch, the collision block of reversion travel switch are separately positioned on the positive and negative of rotating disc.
8. pipe special welder according to claim 7, it is characterized in that: described positive and reverse rotation control circuit includes knife-like switch, the first fuse, electrothermal relay, described knife-like switch connects the signal input part of frequency converter by the first fuse, the signal output part of frequency converter connects motor by electrothermal relay coil; The first end of the first fuse connects the second fuse by output normally-closed contact RB1, the RC1 of frequency converter.
9. the second fuse other end is connected with normally-closed contact, shutdown switch, the limit travel switch of electrothermal relay in turn, the other end of limit travel switch connects forward button, forward button is connected in series the second end that connects the first fuse after the coil of forward limit travel switch normally-closed contact, the normally-closed contact of reversion contactor, positive contactor successively, and wherein the two ends of forward button are parallel with the first normally opened contact of positive contactor, the normally opened contact of inversion limitation travel switch; Wherein the second normally opened contact of positive contactor is connected between the FWD end and DCM end of frequency converter;
The other end of described limit travel switch also connects invert button, invert button is connected in series the second end that connects the first fuse after the coil of normally-closed contact, reversion contactor of inversion limitation travel switch normally-closed contact, positive contactor successively, and wherein the two ends of invert button are parallel with the first normally opened contact of reversion contactor, the normally opened contact of forward limit travel switch; Between the REV end that the second normally opened contact of contactor of wherein reversing is connected on frequency converter is held with DCM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734715.5A CN103753062B (en) | 2013-12-27 | 2013-12-27 | A kind of pipe special welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310734715.5A CN103753062B (en) | 2013-12-27 | 2013-12-27 | A kind of pipe special welder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103753062A true CN103753062A (en) | 2014-04-30 |
| CN103753062B CN103753062B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310734715.5A Active CN103753062B (en) | 2013-12-27 | 2013-12-27 | A kind of pipe special welder |
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| Country | Link |
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| CN (1) | CN103753062B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339107A (en) * | 2014-10-30 | 2015-02-11 | 云南同宇传动件有限公司 | Special cutting machine of convex tooth on hollow cylinder |
| CN105880855A (en) * | 2016-05-23 | 2016-08-24 | 安徽昌永得机械有限公司 | X-groove welding device for excavator bucket rod side plate |
| CN115008080A (en) * | 2022-07-18 | 2022-09-06 | 南通远洋船舶配套有限公司 | Marine boiler tube sheet welding machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114577A (en) * | 1980-02-13 | 1981-09-09 | Toshiba Corp | Remote welding device for inner surface of pipe |
| CN87105592A (en) * | 1986-07-30 | 1988-03-23 | 湘南机工株式会社 | Assemble the rotation circle of the first-class usefulness of welding machine and on this rotation circle, assembled the first-class automatic soldering device of welding machine |
| KR20100048308A (en) * | 2008-10-30 | 2010-05-11 | 강림중공업 주식회사 | A stud pin tube welding machine |
| CN201776577U (en) * | 2010-08-28 | 2011-03-30 | 福建凯鲍汽车制造有限公司 | Horizontal rotating bracket for butting and welding tank body |
| WO2012072876A1 (en) * | 2010-12-01 | 2012-06-07 | Kemppi Oy | Arrangement in the wire feeding device of a welding machine and method for moving a welding wire |
| CN102581530A (en) * | 2012-03-23 | 2012-07-18 | 中国石油天然气集团公司 | Three-way connector and laser electric-arc composite welding torch |
-
2013
- 2013-12-27 CN CN201310734715.5A patent/CN103753062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56114577A (en) * | 1980-02-13 | 1981-09-09 | Toshiba Corp | Remote welding device for inner surface of pipe |
| CN87105592A (en) * | 1986-07-30 | 1988-03-23 | 湘南机工株式会社 | Assemble the rotation circle of the first-class usefulness of welding machine and on this rotation circle, assembled the first-class automatic soldering device of welding machine |
| KR20100048308A (en) * | 2008-10-30 | 2010-05-11 | 강림중공업 주식회사 | A stud pin tube welding machine |
| CN201776577U (en) * | 2010-08-28 | 2011-03-30 | 福建凯鲍汽车制造有限公司 | Horizontal rotating bracket for butting and welding tank body |
| WO2012072876A1 (en) * | 2010-12-01 | 2012-06-07 | Kemppi Oy | Arrangement in the wire feeding device of a welding machine and method for moving a welding wire |
| CN102581530A (en) * | 2012-03-23 | 2012-07-18 | 中国石油天然气集团公司 | Three-way connector and laser electric-arc composite welding torch |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104339107A (en) * | 2014-10-30 | 2015-02-11 | 云南同宇传动件有限公司 | Special cutting machine of convex tooth on hollow cylinder |
| CN104339107B (en) * | 2014-10-30 | 2016-03-09 | 云南同宇传动件有限公司 | Hollow cylinder upper raised teeth cutter special |
| CN105880855A (en) * | 2016-05-23 | 2016-08-24 | 安徽昌永得机械有限公司 | X-groove welding device for excavator bucket rod side plate |
| CN115008080A (en) * | 2022-07-18 | 2022-09-06 | 南通远洋船舶配套有限公司 | Marine boiler tube sheet welding machine |
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| Publication number | Publication date |
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| CN103753062B (en) | 2015-12-02 |
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Address after: 450000 Yulin South Road, Henan, Zheng Dong, No. 16 South Road, Zhengzhou Patentee after: China Tobacco Henan Industrial Co., Ltd. Address before: 450000 Zhengzhou agricultural road, Henan, No. 29 Patentee before: China Tobacco Henan Industrial Co., Ltd. |