CN107738937A - One kind packaging automatic decoiling equipment of paper disc - Google Patents
One kind packaging automatic decoiling equipment of paper disc Download PDFInfo
- Publication number
- CN107738937A CN107738937A CN201711302558.5A CN201711302558A CN107738937A CN 107738937 A CN107738937 A CN 107738937A CN 201711302558 A CN201711302558 A CN 201711302558A CN 107738937 A CN107738937 A CN 107738937A
- Authority
- CN
- China
- Prior art keywords
- support
- paper disc
- negative pressure
- sucker
- sliding block
- 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.)
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Links
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000003139 buffering effect Effects 0.000 claims description 9
- 238000013459 approach Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 241000208125 Nicotiana Species 0.000 description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H16/00—Unwinding, paying-out webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
- B65H2701/1944—Wrapping or packing material
Landscapes
- Replacement Of Web Rolls (AREA)
Abstract
One kind packaging automatic decoiling equipment of paper disc, it includes reel, rail plate, sliding block, driving source, cylinder, uncoiling mechanism, support, negative pressure sucker and negative pressure pump, the reel periphery is paper disc installation position, the rail plate is approach from a distance oriented to the paper disc installation position, the driving source drives the sliding block to be slided on the rail plate, the support is fixedly connected on the sliding block, and the cylinder is arranged on the middle part of the support, and the uncoiling mechanism is fixed on the top of the support；The uncoiling mechanism includes deflector roll, sucker swing arm, pressure roller, clamping arm and fixed block；The negative pressure sucker is arranged on the sucker swing arm upper surface, and the negative pressure pump connects the negative pressure sucker by tracheae.The automatic decoiling equipment of packaging paper disc has the advantages of design science, automatic absorbing paper, automatic impaction paper, raising automation paper disc uncoiling efficiency.
Description
Technical field
The present invention relates to tobacco package machinery technical field, specifically, is related to a kind of packaging automatic decoiling equipment of paper disc.
Background technology
As tobacco machine technology is constantly progressive, equipment speed of production also more and more higher, speed of production is also from middling speed to height
Speed, super-speed development, automaticity is also constantly lifted, and with the progress of packing technique, packaging machine material can not automate confession
The short slab given displays.High-speed packaging machine material replacing construction is short, and labor intensity of operating staff is big, and participant is more, production
Cost is high.Tobacco productive corporation is strong all the more to device requirement, and semi-automatic, full automatic novel package material delivery system also should
Transport and give birth to.
The key link that paper disc class material is automatically fed is uncoiling, and the success rate of uncoiling decides the steady of paper disc supply arrangement
It is qualitative.
In order to solve the problem present on, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of the present invention be in view of the shortcomings of the prior art, so as to provide a kind of design science, automatic absorbing paper, from
The automatic decoiling equipment of packaging paper disc of the tight paper of dynamic pressure, raising automation paper disc uncoiling efficiency.
To achieve these goals, the technical solution adopted in the present invention is：One kind packaging automatic decoiling equipment of paper disc, it
Including reel, rail plate, sliding block, driving source, cylinder, uncoiling mechanism, support, negative pressure sucker and negative pressure pump, outside the reel
Week is paper disc installation position, and the rail plate is approach from a distance oriented to the paper disc installation position, and the driving source drives the sliding block
Slided on the rail plate, the support is fixedly connected on the sliding block, and the cylinder is arranged in the support
Portion, the uncoiling mechanism are fixed on the top of the support；The uncoiling mechanism includes deflector roll, sucker swing arm, pressure roller, clamping arm
And fixed block, the deflector roll are arranged on the top of the support, one end of the sucker swing arm is hinged on the top of the support,
The bottom of the clamping arm is hinged on the top of the support, and a pressure roller, the cylinder driving are installed in the top of the clamping arm
The clamping arm rotates, and the clamping arm links with the sucker swing arm, and during being put on the clamping arm, link the sucker
The swing arm bottom, the fixed block are set on the bracket and in the swing path of the pressure roller；The negative pressure sucker peace
Mounted in the sucker swing arm upper surface, the negative pressure pump connects the negative pressure sucker by tracheae.
Described on base, it also includes what PLC, installation were set on the bracket and towards the paper disc installation position
Color mark sensor, the PLC connect the negative pressure pump and the color mark sensor respectively, according to the color mark sensor
Actuated signal control described in negative pressure pump suction action.
Described on base, the clamping arm is the connecting lever being bent upwards, and linkage board is fixedly installed on the clamping arm, described
Linkage board top is provided with a long guiding hole, and the other end of the sucker swing arm is inserted into the long guiding hole by bearing pin, institute
The telescopic end for stating cylinder promotes the clamping arm around during its bottom articulated position is rotated up, the sucker swing arm quilt
The long guiding hole is limited to lower swing；The PLC connects the driving source and the cylinder respectively.
Described on base, the bottom of the support is additionally provided with buffer gear, and the support is installed by the buffer gear
On the sliding block.
Described on base, the buffer gear includes fastening bolt and buffering plate, and the buffering plate is vertically fixedly mounted
On the sliding block, the buffering plate is provided with the sliding bearing through hole matched with the fastening bolt, the bottom of the support
End is provided with the tapped through hole corresponding with the sliding bearing through hole, and the fastening bolt connects through the tapped through hole and screw thread
It is connected in the sliding bearing through hole, buffer spring is provided between the sliding bearing via top and the bottom of the support,
The fastening bolt runs through the buffer spring.
Described on base, the rail plate is provided with travel switch, and the travel switch is used for whether detecting the sliding block
In place and limit the stroke of the sliding block.
Described on base, the driving source is pressure-air, the rail plate and the slide rail that the sliding block is Rodless cylinder
Part and Slipper, pressure-air are supplied by Pneumatic control proportioning valve for the Rodless cylinder, described in the PLC control
The keying of Pneumatic control proportioning valve.
The present invention is compared with the prior art with prominent substantive distinguishing features and significantly progressive, specifically, of the invention
The outside of the fixed block is provided with color mark sensor, and the color mark sensor is used to detect the paper disc paper on the reel
Colour code at head, when the color mark sensor detects colour code, the reel drives paper disc to stop operating, and the negative pressure sucker passes through
The negative pressure tracheae connects the negative pressure pump, and the negative pressure sucker produces negative pressure and adsorbs paper, and the negative pressure sucker reaches pre-
If negative pressure value when, the PLC controls the cylinder action, and the telescopic end of the cylinder stretches out and promoted described upwards
Put on clamping arm and the linkage board, towards the upper surface of the fixed block and around the bottom articulated position up time of the clamping arm
Pin rotates, meanwhile, the sucker swing arm drives the negative pressure sucker and paper to act on subinverse in the long guiding hole of the linkage board
Hour hands are swung around the top articulated position of the sucker swing arm and the support, and the pressure roller bypasses the top of the negative pressure sucker
Compress paper, after the pressure roller is contradicted in the upper surface of the fixed block and compressed in place, it is suitable that the reel drives paper disc to start
Hour hands rotate, while the PLC controls the Pneumatic control proportioning valve events, and pressure-air is by the Pneumatic control proportioning valve
The Rodless cylinder supply, sliding block moves oppositely downward along the rail plate described in high pressure air drives, and the sliding block drives
The uncoiling mechanism moves down, and the uncoiling mechanism pulls open paper from the outer location for paste of paper disc, completes uncoiling action, from
Dynamicization degree is high, time saving and energy saving, uncoiling efficiency high.
Further, the buffer gear is advantageous to the deflector roll and contradicted slowly stop to during paper disc, will not occur to support firmly
Touch, and cause the damage of the deflector roll/paper disc, there is the protection deflector roll/paper disc.
There is design science, automatic absorbing paper, automatic impaction paper, raising to automate the excellent of paper disc uncoiling efficiency for it
Point.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the side view of the present invention.
Fig. 3 is the initial open configuration figure of uncoiling mechanism of the present invention.
Fig. 4 is the middle action state diagram of uncoiling mechanism of the present invention.
Fig. 5 is the final presses paper head status figure of uncoiling mechanism of the present invention.
In figure：1. paper disc；2. rail plate；3. sliding block；4. cylinder；5. uncoiling mechanism；6. support；7. deflector roll；8. linkage
Plate；9. sucker swing arm；10. pressure roller；11. clamping arm；12, fixed block；13. bearing pin；14. long guiding hole；15. color mark sensor；
16. negative pressure sucker；17. negative pressure tracheae；18. buffer gear；19. paper.
Embodiment
Below by embodiment, technical scheme is described in further detail.
As Figure 1-5, a kind of packaging automatic decoiling equipment of paper disc, it includes reel, rail plate 2, sliding block 3, driving
Source, cylinder 4, uncoiling mechanism 5, support 6, negative pressure sucker 16 and negative pressure pump, the reel periphery are paper disc installation position, the slip
Guide rail 2 is approach from a distance oriented to the paper disc installation position, and the driving source drives the sliding block 3 to be slided on the rail plate 2,
The support 6 is fixedly connected on the sliding block 3, and the cylinder 4 is arranged on the middle part of the support 6, and the uncoiling mechanism 5 is solid
It is scheduled on the top of the support 6；The uncoiling mechanism 5 includes deflector roll 7, sucker swing arm 9, pressure roller 10, clamping arm 11 and fixed block
12, the deflector roll 7 is arranged on the top of the support 6, and one end of the sucker swing arm 9 is hinged on the top of the support 6, institute
The bottom for stating clamping arm 11 is hinged on the top of the support 6, and a pressure roller 10, the cylinder are installed in the top of the clamping arm 11
The 4 driving clamping arms 11 rotate, and the clamping arm 11 links with the sucker swing arm 9, during being put on the clamping arm 11,
Linked the bottom of sucker swing arm 9, and the fixed block 12 is arranged on the support 6 and positioned at the swing path of the pressure roller 10
On；The negative pressure sucker 16 is arranged on the upper surface of sucker swing arm 9, and the negative pressure pump is connected described negative by negative pressure tracheae 17
Press sucker 16.
The colour code sensing that it also includes PLC, set on the support 6 and towards the paper disc installation position
Device 15, the PLC connect the negative pressure pump and the color mark sensor 15 respectively, according to the color mark sensor 15
The suction action of negative pressure pump described in actuated signal control.
The clamping arm 11 is the connecting lever being bent upwards, and linkage board 8, the linkage are fixedly installed on the clamping arm 11
The top of plate 8 is provided with a long guiding hole 14, and the other end of the sucker swing arm 9 is inserted into the long guiding hole 14 by bearing pin 13
In, the telescopic end of the cylinder 4 promotes the clamping arm 11 around during its bottom articulated position is rotated up, the suction
Disk swing arm 9 is limited to lower swing by the long guiding hole 14；The PLC connects the driving source and the cylinder respectively
4。
The bottom of the support 6 is additionally provided with buffer gear 18, and the support 6 is arranged on institute by the buffer gear 18
State on sliding block 3.
The buffer gear 18 includes fastening bolt and buffering plate, and the buffering plate is vertically fixedly mounted on the cunning
On block 3, the buffering plate is provided with the sliding bearing through hole matched with the fastening bolt, and the bottom of the support 6 is provided with
The tapped through hole corresponding with the sliding bearing through hole, the fastening bolt is through the tapped through hole and is threaded in institute
State in sliding bearing through hole, buffer spring, the fastening are provided between the bottom of support 6 described in the sliding bearing via top
Buffer spring described in bolt-through.
The rail plate 2 is provided with travel switch, and the travel switch is used to detecting whether the sliding block 3 in place and to limit
Make the stroke of the sliding block 3.
The driving source is pressure-air, and the rail plate 2 and the sliding block 3 are the track portion and cunning of Rodless cylinder
Block portion point, pressure-air are supplied by Pneumatic control proportioning valve for the Rodless cylinder, and the PLC controls the Pneumatic control proportioning
The keying of valve；The driving source can also be automatically controlled driving, screw mandrel driving etc..
The working process and principle of the automatic decoiling equipment of packaging paper disc of the present invention are when initial, to be wound on the reel
Need the paper disc 1 of uncoiling, colour code is provided with the paper 19 of the paper disc 1, the uncoiling mechanism 5 is for open configuration, it is necessary to institute
When stating the progress uncoiling of paper disc 1, the PLC controls the Pneumatic control proportioning valve events, and pressure-air passes through the gas control ratio
Example valve is Rodless cylinder supply, and sliding block 3 described in high pressure air drives is towards the paper disc installation position along the rail plate 2
Slide, the deflector roll 7 is contradicted at the lower end outer of the paper disc 1, and the travel switch detects the sliding block 3 in place, described
PLC receives the signal of the travel switch to control the Pneumatic control proportioning valve to stop, while the deflector roll 7 is described slow
Slowly stop under the cushioning effect of punch mechanism 18, the uncoiling mechanism 5 moves into place, and the reel drives the inverse time of paper disc 1
Pin slowly rotates, and when the color mark sensor 15 detects colour code, the reel stops operating, and waits the uncoiling mechanism 5 dynamic
Make, the negative pressure sucker 16 connects the negative pressure pump by the negative pressure tracheae 17, and the negative pressure sucker 16 produces negative pressure and inhaled
The attached paper 19, when the negative pressure sucker 16 reaches default negative pressure value, the PLC controls the cylinder 4 to act,
The telescopic end of the cylinder 4 stretches out and promoted upwards to be put on the clamping arm 11 and the linkage board 8, towards the fixed block 12
Upper surface and rotated clockwise around the bottom articulated position of the clamping arm 11, meanwhile, the sucker swing arm 9 drives described negative
Press sucker 16 and the paper 19 in the case where the long guiding hole 14 of the linkage board 8 acts on counterclockwise around the sucker swing arm 9 and institute
The top articulated position for stating support 6 is swung, and the pressure roller 10 compresses the paper 19 around the top of the negative pressure sucker 16, described
After pressure roller 10 is contradicted in the upper surface of the fixed block 12 and compressed in place, the reel drives the paper disc 1 to start clockwise
Rotate, while the PLC controls the Pneumatic control proportioning valve events, pressure-air is described by the Pneumatic control proportioning valve
Rodless cylinder supplies, and sliding block 3 described in high pressure air drives moves oppositely downward along the rail plate 2, and the sliding block 3 drives institute
State uncoiling mechanism 5 to move down, the uncoiling mechanism 5 pulls open paper 19 from the outer location for paste of the paper disc 1, completes uncoiling
Action, automaticity of the present invention is high, time saving and energy saving, uncoiling efficiency high.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (7)
1. one kind packaging automatic decoiling equipment of paper disc, it is characterised in that：It includes reel, rail plate, sliding block, driving source, gas
Cylinder, uncoiling mechanism, support, negative pressure sucker and negative pressure pump, the reel periphery are paper disc installation position, the rail plate from remote and
The paper disc installation position is closely oriented to, the driving source drives the sliding block to be slided on the rail plate, and the support is fixed
It is connected on the sliding block, the cylinder is arranged on the middle part of the support, and the uncoiling mechanism is fixed on the upper of the support
Portion；The uncoiling mechanism includes deflector roll, sucker swing arm, pressure roller, clamping arm and fixed block, and the deflector roll is arranged on the support
Top, one end of the sucker swing arm are hinged on the top of the support, and the bottom of the clamping arm is hinged on the support
A pressure roller is installed on top, the top of the clamping arm, and the cylinder drives the clamping arm to rotate, the clamping arm and the suction
Disk swing arm links, and during being put on the clamping arm, link the sucker swing arm bottom, and the fixed block is arranged on the support
Go up and be located in the swing path of the pressure roller；The negative pressure sucker is arranged on the sucker swing arm upper surface, the negative pressure pump
The negative pressure sucker is connected by tracheae.
2. the packaging automatic decoiling equipment of paper disc according to claim 1, it is characterised in that：It also includes PLC, peace
The color mark sensor that dress is set on the bracket and towards the paper disc installation position, the PLC connect described respectively
Negative pressure pump and the color mark sensor, according to the suction action of negative pressure pump described in the actuated signal control of the color mark sensor.
3. the packaging automatic decoiling equipment of paper disc according to claim 2, it is characterised in that：The clamping arm is to be bent upwards
Connecting lever, be fixedly installed linkage board on the clamping arm, the linkage board top is provided with a long guiding hole, the sucker swing arm
The other end be inserted into by bearing pin in the long guiding hole, the telescopic end of the cylinder promotes the clamping arm to surround its bottom
During articulated position is rotated up, the sucker swing arm is limited to lower swing by the long guiding hole；The PLC
The driving source and the cylinder are connected respectively.
4. the packaging automatic decoiling equipment of paper disc according to claim 2, it is characterised in that：The bottom of the support is also set up
There is buffer gear, the support is arranged on the sliding block by the buffer gear.
5. the packaging automatic decoiling equipment of paper disc according to claim 4, it is characterised in that：The buffer gear includes fastening
Bolt and buffering plate, the buffering plate are vertically fixedly mounted on the sliding block, the buffering plate be provided with it is described
The sliding bearing through hole of fastening bolt matching, the bottom of the support leads to provided with the screw thread corresponding with the sliding bearing through hole
Hole, the fastening bolt is through the tapped through hole and is threaded in the sliding bearing through hole, and the sliding bearing leads to
Buffer spring is provided between the bottom of the support at the top of hole, the fastening bolt runs through the buffer spring.
6. the packaging automatic decoiling equipment of paper disc according to claim 2, it is characterised in that：The rail plate is provided with row
Cheng Kaiguan, the travel switch are used to detecting whether the sliding block in place and to limit the stroke of the sliding block.
7. the automatic decoiling equipment of packaging paper disc according to claim any one of 2-6, it is characterised in that：The driving source is
Pressure-air, the rail plate and the sliding block are the track portion and Slipper of Rodless cylinder, and pressure-air passes through gas
Control proportioning valve to supply for the Rodless cylinder, the PLC controls the keying of the Pneumatic control proportioning valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302558.5A CN107738937B (en) | 2017-12-11 | 2017-12-11 | Automatic unwinding device of packing paper tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302558.5A CN107738937B (en) | 2017-12-11 | 2017-12-11 | Automatic unwinding device of packing paper tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107738937A true CN107738937A (en) | 2018-02-27 |
| CN107738937B CN107738937B (en) | 2024-03-22 |
Family
ID=61240054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711302558.5A Active CN107738937B (en) | 2017-12-11 | 2017-12-11 | Automatic unwinding device of packing paper tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107738937B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114291619A (en) * | 2021-12-30 | 2022-04-08 | 安徽时代创美包装有限公司 | Paper supply device is used in carton production convenient to fast switch over |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1375273A (en) * | 1971-12-15 | 1974-11-27 | ||
| CN101422278A (en) * | 2008-12-02 | 2009-05-06 | 昆明元亨物流自动化有限公司 | Universal coil-paper pneumatic unpacking device |
| CN102613700A (en) * | 2010-12-17 | 2012-08-01 | 豪尼机械制造股份公司 | Bobbin rolling device for the tobacco processing industry |
| CN102658900A (en) * | 2012-05-04 | 2012-09-12 | 江南大学 | Label picking and sticking device |
| CN202912445U (en) * | 2012-09-28 | 2013-05-01 | 温州市新丰装饰材料有限公司 | Glassine paper unreeling device |
| CN103269835A (en) * | 2010-11-08 | 2013-08-28 | 唐纳德·邦内尔 | Product roll cutting and handling mechanism and method |
| CN104138930A (en) * | 2014-07-29 | 2014-11-12 | 中冶南方工程技术有限公司 | Novel uncoiling machine |
| CN205146926U (en) * | 2015-12-07 | 2016-04-13 | 常熟达涅利冶金设备有限公司 | Novel open a book sword |
| CN207671364U (en) * | 2017-12-11 | 2018-07-31 | 许昌烟草机械有限责任公司 | A kind of automatic decoiling equipment of packaging paper disc |
-
2017
- 2017-12-11 CN CN201711302558.5A patent/CN107738937B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1375273A (en) * | 1971-12-15 | 1974-11-27 | ||
| CN101422278A (en) * | 2008-12-02 | 2009-05-06 | 昆明元亨物流自动化有限公司 | Universal coil-paper pneumatic unpacking device |
| CN103269835A (en) * | 2010-11-08 | 2013-08-28 | 唐纳德·邦内尔 | Product roll cutting and handling mechanism and method |
| CN102613700A (en) * | 2010-12-17 | 2012-08-01 | 豪尼机械制造股份公司 | Bobbin rolling device for the tobacco processing industry |
| CN102658900A (en) * | 2012-05-04 | 2012-09-12 | 江南大学 | Label picking and sticking device |
| CN202912445U (en) * | 2012-09-28 | 2013-05-01 | 温州市新丰装饰材料有限公司 | Glassine paper unreeling device |
| CN104138930A (en) * | 2014-07-29 | 2014-11-12 | 中冶南方工程技术有限公司 | Novel uncoiling machine |
| CN205146926U (en) * | 2015-12-07 | 2016-04-13 | 常熟达涅利冶金设备有限公司 | Novel open a book sword |
| CN207671364U (en) * | 2017-12-11 | 2018-07-31 | 许昌烟草机械有限责任公司 | A kind of automatic decoiling equipment of packaging paper disc |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114291619A (en) * | 2021-12-30 | 2022-04-08 | 安徽时代创美包装有限公司 | Paper supply device is used in carton production convenient to fast switch over |
| CN114291619B (en) * | 2021-12-30 | 2024-04-30 | 安徽时代创美包装有限公司 | Paper feeding device convenient to fast switch over for carton production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107738937B (en) | 2024-03-22 |
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