CN112605463A - Automatic pipe cutting machine - Google Patents
Automatic pipe cutting machine Download PDFInfo
- Publication number
- CN112605463A CN112605463A CN202011522998.3A CN202011522998A CN112605463A CN 112605463 A CN112605463 A CN 112605463A CN 202011522998 A CN202011522998 A CN 202011522998A CN 112605463 A CN112605463 A CN 112605463A
- Authority
- CN
- China
- Prior art keywords
- lead screw
- motor
- hollow shaft
- base
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
- B23D21/04—Tube-severing machines with rotating tool-carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses an automatic pipe cutting machine, which comprises a steel pipe fixing and clamping mechanism, a cutting mechanism and a length fixing mechanism, wherein the steel pipe fixing and clamping mechanism consists of a lead screw and a clamp, a supporting arc plate fixed at the upper end of the lead screw plays a role in supporting a steel pipe, the cutting mechanism mainly comprises a cutting blade, a blade fixing frame, a rack, a feeding motor, a motor frame, a rotating motor and a slide rail, the cutting blade is slidably mounted on the blade fixing frame, the blade fixing frame is coaxially and fixedly mounted on a driven hollow shaft, the rack is fixedly mounted on the cutting blade, the feeding motor is fixedly mounted on the motor frame, the motor frame is slidably mounted on the slide rail, the slide rail is fixedly mounted on the rack, the rotating motor is fixedly mounted on the motor frame, the cutting blade is coaxially and fixedly mounted on an output shaft of the rotating motor, the invention has the advantages of ingenious mechanism, convenient operation and high cutting efficiency.
Description
Technical Field
The invention relates to the field of machining, in particular to an automatic pipe cutting machine.
Background
In the development of industrialization, steel pipes play a crucial role, however, the steel pipes are produced in long lengths and need to be cut again when in use, as disclosed in the prior art (CN 201911296311.6), a stainless steel pipe cutting apparatus includes: steel pipe storage unloader, steel pipe material feeding unit, steel pipe cutting device. The steel pipe storage and blanking device is used for storing and blanking steel pipes; the steel pipe feeding device is used for transferring the steel pipes at the steel pipe storage and discharging device to the steel pipe cutting device; the steel pipe cutting device is used for cutting the steel pipe. According to the stainless steel pipe cutting equipment, on one hand, the problem that smooth blanking cannot be achieved due to friction between pipe walls of adjacent steel pipes in the box body is solved; on the other hand, the steel pipes can be sequentially queued and come out of the storage box; on the other hand, when the steel pipes do not need to be blanked, the storage box can lock the steel pipes in the box body, and the steel pipes are prevented from overflowing from the box body in a large amount.
Disclosure of Invention
Aiming at the technical problems, the invention provides an automatic pipe cutting machine which can effectively solve the technical problems and has the characteristics of simple structure, rapid cutting and capability of adapting to steel pipes with different diameters and fixed-length cutting.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an automatic pipe cutting machine comprises a screw support, a screw adjusting bolt, a supporting screw, a supporting arc plate, a steel pipe, a clamp, a cutter assembly, a cover, a base, a discharge port, a driven hollow shaft, a fixed key, a driven gear, a driving hollow shaft, a bearing seat, a fixed length screw, a screw motor, a screw coupling, a screw sleeve fixing seat, a screw sleeve, a motor with a reducer, a motor fixing seat, a height adjusting block, a driving gear and a blanking port, wherein the screw adjusting bolt is rotatably arranged on the screw support, the supporting screw is in threaded fit with the screw adjusting bolt, the supporting arc plate is fixedly arranged at the upper end of the supporting screw, the steel pipe is arranged in an arc of the supporting arc plate, the base is fixedly connected with the screw support, the clamp is fixedly arranged on the base, the cover is arranged above the base, the steel pipe passes through the middle, the blanking port is arranged below the cutter assembly and is fixedly arranged on the base, the cutter assembly is coaxially and fixedly arranged on a driven hollow shaft, the driven hollow shaft is rotatably arranged on a bearing seat, the driven hollow shaft is fixedly connected with a driven gear through a fixed key, the driven gear is fixedly arranged on a driving hollow shaft, the driving hollow shaft is rotatably arranged on the bearing seat, one part of a fixed-length lead screw is arranged in the driving hollow shaft, the fixed-length lead screw is rotatably arranged on a lead screw sleeve, the lead screw sleeve is fixedly arranged on a lead screw sleeve fixing seat, the lead screw sleeve fixing seat is fixedly arranged on the base, a lead screw motor is fixedly connected with the fixed-length lead screw through a lead screw coupler, the driven gear is in gear fit with a driving gear, a motor with a speed reducer is fixedly arranged on a motor fixing seat, the driving gear, the height adjusting block is fixedly arranged on the base.
Furthermore, the part of the fixed-length lead screw arranged in the driving hollow shaft is provided with a disc, and the disc and the fixed-length lead screw form thread fit and are connected with the driving hollow shaft in a sliding way.
Further, the cutter assembly includes cutting blade, the blade mount, a machine support, feed the motor, the motor frame, the rotating electrical machines, a slide rail, cutting blade slidable mounting is on the blade mount, the coaxial fixed mounting of blade mount is on driven hollow shaft, frame fixed mounting is on the cutting blade, feed motor fixed mounting is on the motor frame, motor frame slidable mounting is on the slide rail, slide rail fixed mounting is in the machine support, rotating electrical machines fixed mounting is on the motor frame, the coaxial fixed mounting of cutting blade is on rotating electrical machines's output shaft.
Further, lead screw motor (17) fixed mounting is on the motor cabinet, and motor cabinet fixed mounting is on base 9, and feed motor (704) is connected with cutting blade (701) through the lead screw.
Compared with the prior art, the invention has the beneficial effects that.
(1) The cutting tool can rotate, cutting time is reduced, and working efficiency is improved.
(2) Be provided with automatic fixed length cutting, can realize the steel pipe cutting of a plurality of lengths.
(3) The structure is ingenious, the cost is low, and the universality is strong.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 and 3 are schematic views of the overall structure of the present invention with the cover removed.
Fig. 4 and 5 are schematic structural diagrams of the cutting mechanism.
The reference numbers: 1-a lead screw support; 2-lead screw adjusting bolt; 3-supporting a lead screw; 4-supporting the arc plate; 5-a steel pipe; 6-clamping; 7-a tool assembly; 8-cover; 9-a base; 10-a discharge hole; 11-a driven hollow shaft; 12-a fixed bond; 13-a driven gear; 14-active hollow shaft; 15-bearing seats; 16-fixed length lead screw; 17-a lead screw motor; 18-lead screw coupling; 19-lead screw sleeve fixing seat; 20-a screw sleeve; 21-motor with reducer; 22-motor fixing seat; 23-a height adjustment block; 24-a drive gear; 25-blanking port; 701-a cutting blade; 702-a blade mount; 703-a frame; 704-a feed motor; 705-motor rack; 706-a rotating electrical machine; 707-sliding track.
Detailed Description
The present invention will be further described with reference to specific examples, which are illustrative of the invention and are not to be construed as limiting the invention.
Example (b): FIG. 1 is a schematic diagram of the overall structure of the present invention, and an automatic pipe cutting machine comprises a screw support 1, a screw adjusting bolt 2, a supporting screw 3, a supporting arc plate 4, a steel pipe 5, a clamp 6, a cutter assembly 7, a cover 8, a base 9, a discharge port 10, a driven hollow shaft 11, a fixed key 12, a driven gear 13, a driving hollow shaft 14, a bearing seat 15, a fixed length screw 16, a screw motor 17, a screw coupling 18, a screw sleeve fixing seat 19, a screw sleeve 20, a motor with a reducer 21, a motor fixing seat 22, a height adjusting block 23, a driving gear 24, and a discharge port 25, wherein the screw adjusting bolt 2 is rotatably installed on the screw support 1, the supporting screw 3 and the screw adjusting bolt 2 form a threaded fit, the supporting arc plate 4 is fixedly installed at the upper end of the supporting screw 3, the steel pipe 5 is arranged in an arc of the supporting arc plate 4, and, the fixture 6 is fixedly arranged on the base 9, the cover 8 is arranged above the base 9, the steel pipe 5 passes through the middle of the cutter assembly 7, the discharge port 10 is fixedly arranged on the base 9, the blanking port 25 is arranged below the cutter assembly 7 and is fixedly arranged on the base 9, the cutter assembly 7 is coaxially and fixedly arranged on the driven hollow shaft 11, the driven hollow shaft 11 is rotatably arranged on the bearing seat 15, the driven hollow shaft 11 is fixedly connected with the driven gear 13 through the fixed key 12, the driven gear 13 is fixedly arranged on the driving hollow shaft 14, the driving hollow shaft 14 is rotatably arranged on the bearing seat 15, a part of the fixed-length lead screw 16 is arranged inside the driving hollow shaft 14, the fixed-length lead screw 16 is rotatably arranged on the lead screw sleeve 20, the lead screw sleeve 20 is fixedly arranged on the lead screw sleeve fixing seat 19, the lead screw sleeve fixing seat 19 is fixedly arranged on the base 9, and the lead screw motor 17 is, driven gear 13 forms the gear cooperation with driving gear 24, takes reduction gear motor 21 fixed mounting on motor fixing base 22, and driving gear 24 coaxial fixed mounting is on the output shaft of taking reduction gear motor 21, and motor fixing base 22 fixed mounting is on height adjusting block 23, and height adjusting block 23 fixed mounting is on base 9.
The portion of the lead screw 16 disposed within the active hollow shaft 14 is a disk that is threadably engaged with the lead screw 16 and slidably coupled to the active hollow shaft 14.
The cutter assembly 7 comprises a cutting blade 701, a blade fixing frame 702, a machine frame 703, a feeding motor 704, a motor frame 705, a rotating motor 706 and a sliding rail 707, wherein the cutting blade 701 is slidably mounted on the blade fixing frame 702, the blade fixing frame 702 is coaxially and fixedly mounted on the driven hollow shaft 11, the machine frame 703 is fixedly mounted on the cutting blade 701, the feeding motor 704 is fixedly mounted on the motor frame 705, the motor frame 705 is slidably mounted on the sliding rail 707, the sliding rail 707 is fixedly mounted on the machine frame 703, the rotating motor 706 is fixedly mounted on the motor frame 705, and the cutting blade 701 is coaxially and fixedly mounted on an output shaft of the rotating motor 706.
The screw motor 17 is fixedly installed on the motor base, the motor base is fixedly installed on the base 9, and the feeding motor (704) is connected with the cutting blade 701 through a screw.
The working principle of the invention is as follows: when carrying out the steel pipe cutting, at first need start screw motor 17, screw motor 17 drives fixed length lead screw 16 and rotates, and then can drive the disc in the initiative hollow shaft 14 and slide, thereby adjust the distance of disc distance cutter assembly 7, namely be about to cut the length of steel pipe, adjust and take reduction gear motor 21 to start after the length, it rotates to drive driving gear 24, the driving gear drives driven hollow shaft 11 and rotates, and then prop assembly 7 will rotate round the steel pipe, meanwhile, feed motor 704 starts, two cutting blade 701 are close to the steel pipe under the effect of lead screw and motor, rotating electrical machines 706 starts simultaneously, cutting blade 701 carries out the steel pipe cutting.
Claims (4)
1. The utility model provides an automatic pipe cutting machine, including lead screw support (1), lead screw adjusting bolt (2), support lead screw (3), support arc board (4), steel pipe (5), anchor clamps (6), cutter assembly (7), cover (8), base (9), discharge gate (10), driven hollow shaft (11), fixed key (12), driven gear (13), initiative hollow shaft (14), bearing frame (15), fixed length lead screw (16), lead screw motor (17), lead screw shaft coupling (18), lead screw cover fixing base (19), lead screw cover (20), take reduction gear motor (21), motor fixing base (22), altitude mixture control piece (23), driving gear (24), blanking mouth (25), its characterized in that:
the lead screw adjusting bolt (2) is rotatably installed on a lead screw support (1), a supporting lead screw (3) and the lead screw adjusting bolt (2) form thread fit, a supporting arc plate (4) is fixedly installed at the upper end of the supporting lead screw (3), a steel pipe (5) is arranged in an arc of the supporting arc plate (4), a base (9) is fixedly connected with the lead screw support (1), a clamp (6) is fixedly installed on the base (9), a cover (8) is arranged above the base (9), the steel pipe (5) passes through the middle of a cutter assembly (7), a discharge port (10) is fixedly installed on the base (9), a blanking port (25) is arranged below the cutter assembly (7) and is fixedly installed on the base (9), the cutter assembly (7) is coaxially and fixedly installed on a driven hollow shaft (11), the driven hollow shaft (11) is rotatably installed on a bearing seat (15), a driven hollow shaft (11) is fixedly connected with a driven gear (13) through a fixed key (12), the driven gear (13) is fixedly installed on a driving hollow shaft (14), the driving hollow shaft (14) is rotatably installed on a bearing seat (15), a part of a fixed-length lead screw (16) is arranged inside the driving hollow shaft (14), the fixed-length lead screw (16) is rotatably installed on a lead screw sleeve (20), the lead screw sleeve (20) is fixedly installed on a lead screw sleeve fixing seat (19), the lead screw sleeve fixing seat (19) is fixedly installed on a base (9), a lead screw motor (17) is fixedly connected with the fixed-length lead screw (16) through a lead screw coupling (18), the driven gear (13) and a driving gear (24) form gear fit, the motor (21) with a reducer is fixedly installed on a motor fixing seat (22), and the driving gear (24) is coaxially and fixedly installed on an output shaft of the motor (21, the motor fixing seat (22) is fixedly arranged on the height adjusting block (23), and the height adjusting block (23) is fixedly arranged on the base (9).
2. The automatic pipe cutter as claimed in claim 1, wherein: the part of the fixed-length lead screw (16) arranged inside the driving hollow shaft (14) is provided with a disc, and the disc and the fixed-length lead screw (16) form thread fit and are in sliding connection with the driving hollow shaft (14).
3. The automatic pipe cutter as claimed in claim 1, wherein: cutter assembly (7) include cutting blade (701), blade mount (702), frame (703), feed motor (704), motor frame (705), rotating electrical machines (706), slide rail (707), cutting blade (701) slidable mounting on blade mount (702), coaxial fixed mounting on driven hollow shaft (11) of blade mount (702), frame (703) fixed mounting is on cutting blade (701), feed motor (704) fixed mounting is on motor frame (705), motor frame (705) slidable mounting is on slide rail (707), slide rail (707) fixed mounting is on frame (703), rotating electrical machines (706) fixed mounting is on motor frame (705), coaxial fixed mounting of cutting blade (701) is on the output shaft of rotating electrical machines (706).
4. The automatic pipe cutter as claimed in claim 1, wherein: lead screw motor (17) fixed mounting on the motor cabinet, motor cabinet fixed mounting is on base 9, feed motor (704) be connected with cutting blade (701) through the lead screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522998.3A CN112605463B (en) | 2020-12-22 | 2020-12-22 | Automatic pipe cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522998.3A CN112605463B (en) | 2020-12-22 | 2020-12-22 | Automatic pipe cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112605463A true CN112605463A (en) | 2021-04-06 |
| CN112605463B CN112605463B (en) | 2024-06-14 |
Family
ID=75243877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011522998.3A Active CN112605463B (en) | 2020-12-22 | 2020-12-22 | Automatic pipe cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112605463B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179084A (en) * | 2022-07-05 | 2022-10-14 | 安徽誉林汽车部件有限公司 | Cutting equipment is used in car bush processing with adjust structure |
| CN115780901A (en) * | 2023-02-03 | 2023-03-14 | 山东莱芜建设集团有限公司 | Tubular product cutting device for construction |
| CN116140690A (en) * | 2023-04-04 | 2023-05-23 | 江阴市华昌不锈钢管有限公司 | Fixed length cutting device for small-caliber steel pipe production |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0525406A1 (en) * | 1991-07-17 | 1993-02-03 | BÜLTMANN, Monika | Tube cutting apparatus |
| CN2877930Y (en) * | 2006-01-20 | 2007-03-14 | 番禺珠江钢管有限公司 | Pipe cutter |
| KR100765190B1 (en) * | 2006-05-19 | 2007-10-09 | 최제홍 | Pipe processing apparatus |
| CN203621602U (en) * | 2013-12-24 | 2014-06-04 | 湖北工业大学 | Device for double-blade-symmetrical planet type automatic cutting of thin-wall stainless steel tube |
| CN104625097A (en) * | 2013-11-08 | 2015-05-20 | 天津捷隆港口机械有限公司 | Lathe |
| CN104816034A (en) * | 2015-03-31 | 2015-08-05 | 宁波新乐造船集团有限公司 | Automatic thin-walled circular tube cutting device |
| CN209335867U (en) * | 2018-12-09 | 2019-09-03 | 安徽三胜塑料助剂有限公司 | A kind of adjustable plastic particle disconnecting device |
| CN210099086U (en) * | 2019-04-24 | 2020-02-21 | 傅战 | Pipe cutting machine |
-
2020
- 2020-12-22 CN CN202011522998.3A patent/CN112605463B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0525406A1 (en) * | 1991-07-17 | 1993-02-03 | BÜLTMANN, Monika | Tube cutting apparatus |
| CN2877930Y (en) * | 2006-01-20 | 2007-03-14 | 番禺珠江钢管有限公司 | Pipe cutter |
| KR100765190B1 (en) * | 2006-05-19 | 2007-10-09 | 최제홍 | Pipe processing apparatus |
| CN104625097A (en) * | 2013-11-08 | 2015-05-20 | 天津捷隆港口机械有限公司 | Lathe |
| CN203621602U (en) * | 2013-12-24 | 2014-06-04 | 湖北工业大学 | Device for double-blade-symmetrical planet type automatic cutting of thin-wall stainless steel tube |
| CN104816034A (en) * | 2015-03-31 | 2015-08-05 | 宁波新乐造船集团有限公司 | Automatic thin-walled circular tube cutting device |
| CN209335867U (en) * | 2018-12-09 | 2019-09-03 | 安徽三胜塑料助剂有限公司 | A kind of adjustable plastic particle disconnecting device |
| CN210099086U (en) * | 2019-04-24 | 2020-02-21 | 傅战 | Pipe cutting machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179084A (en) * | 2022-07-05 | 2022-10-14 | 安徽誉林汽车部件有限公司 | Cutting equipment is used in car bush processing with adjust structure |
| CN115780901A (en) * | 2023-02-03 | 2023-03-14 | 山东莱芜建设集团有限公司 | Tubular product cutting device for construction |
| CN115780901B (en) * | 2023-02-03 | 2023-04-18 | 山东莱芜建设集团有限公司 | Tubular product cutting device for construction |
| CN116140690A (en) * | 2023-04-04 | 2023-05-23 | 江阴市华昌不锈钢管有限公司 | Fixed length cutting device for small-caliber steel pipe production |
| CN116140690B (en) * | 2023-04-04 | 2023-06-27 | 江阴市华昌不锈钢管有限公司 | Fixed length cutting device for small-caliber steel pipe production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112605463B (en) | 2024-06-14 |
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Effective date of registration: 20240517 Address after: 061400 BUZHAI Industrial Zone, Mengcun Hui Autonomous County, Cangzhou City, Hebei Province Applicant after: Hebei Oulong Steel Pipe Manufacturing Co.,Ltd. Country or region after: China Address before: No. 39, Dasi village, Dasi Town, Gaogang District, Taizhou City, Jiangsu Province, 225328 Applicant before: Lan Yushi Country or region before: China |
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