CN107139534A - A kind of paper bag base opening opening mechanism of full-automatic paper bag machine - Google Patents
A kind of paper bag base opening opening mechanism of full-automatic paper bag machine Download PDFInfo
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- CN107139534A CN107139534A CN201710555390.2A CN201710555390A CN107139534A CN 107139534 A CN107139534 A CN 107139534A CN 201710555390 A CN201710555390 A CN 201710555390A CN 107139534 A CN107139534 A CN 107139534A
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- paper bag
- air
- nozzle assembly
- breathing nozzle
- base opening
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- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 241000486406 Trachea Species 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 7
- 210000003437 trachea Anatomy 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004801 process automation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The present invention proposes a kind of paper bag base opening opening mechanism of full-automatic paper bag machine, including paper bag transport platform and air-breathing nozzle assembly, also include guide groove, air-breathing nozzle assembly includes the first air-breathing nozzle assembly and the second air-breathing nozzle assembly, air-breathing nozzle assembly is installed along paper bag conveying direction order and draws the relative flanging of paper bag base opening two respectively, first air-breathing nozzle assembly is arranged on the top that paper bag transport platform send platform turnablely, second air-breathing nozzle assembly sets the lower section of paper bag transport platform, paper bag transport platform is provided with the air entry of insertion paper bag transport platform upper and lower surface, second component suction nozzle can be below paper bag transport platform by rotating through above air entry arrival paper bag transport platform, what guide groove connect including mutually passing is in the first horn-like guide groove and vertical the second parallel guide groove, paper bag paper bag base opening after the processing of air-breathing nozzle assembly enters in guide groove.The invention provides a kind of paper bag base opening opening mechanism of full-automatic paper bag machine, in order to be put into bottom card into paper bag base opening.
Description
Technical field
The present invention relates to the paper bag base opening opening mechanism of paper bag machine technical field, more particularly to a kind of full-automatic paper bag machine.
Background technology
Paper bag machine is a kind of machine for making Paper handbag, and paper is successively after multiple working procedure, and being formed has folding
The Paper handbag blank (paper bag in such as Fig. 1) of base opening, afterwards into gumming mechanism, after the gluing of bottom, enters back into folding machine
Structure, by the both sides infolding up and down of bottom, finally compacting forms finished product handbag.
Paper handbag general at present is made using the above method, however as the variation of product, consumer couple
The quality of handbag proposes higher requirement, such as requires the bottom-thickened of handbag, to ensure the carrying of handbag necessarily
Ability, therefore, handbag manufacturer typically can be put into bottom card in the sack inner bottom part made, to reach above-mentioned purpose, so
And production efficiency, and increase cost of labor can undoubtedly be influenceed by placing bottom card by hand, and use general paper bag machine nothing
Method completes automatic bottom card of putting and worked.
The content of the invention
Based on above mentioned problem, present invention aims at providing a kind of paper bag base opening opening mechanism of full-automatic paper bag machine, with
It is easy into paper bag base opening be put into bottom card.
For problem above, there is provided following technical scheme：A kind of paper bag base opening opening mechanism of full-automatic paper bag machine, bag
Include paper bag transport platform and the air-breathing nozzle assembly for drawing the flanging of paper bag base opening two, it is characterised in that：Also include guide groove, the suction
Valve component includes the first air-breathing nozzle assembly and the second air-breathing nozzle assembly, and the air-breathing nozzle assembly is pacified along paper bag conveying direction order
Dress and the respectively relative flanging of absorption paper bag base opening two, the first air-breathing nozzle assembly are sent installed in paper bag transport platform turnablely
The top of platform, the second air-breathing nozzle assembly sets the lower section of paper bag transport platform, and the paper bag transport platform is provided with insertion paper bag
The air entry of transport platform upper and lower surface, second component suction nozzle can below the paper bag transport platform through rotating through air entry to
Up to above paper bag transport platform, the guide groove, which includes mutually passing in the first horn-like guide groove and vertically parallel second connect, leads
Groove, paper bag paper bag base opening after the processing of air-breathing nozzle assembly enters in guide groove.
The present invention is further arranged to：The first air-breathing nozzle assembly includes opening bag wheel, the first tracheae, the first valve and turning over
Rotary driving device, first valve is arranged on out on bag wheel and is connected with the first tracheae, and the overturning drive device includes
The transmission component that trip shaft and driving trip shaft are rotated, the bag wheel of opening is sleeved on trip shaft and reverses direction and paper bag conveying
In the opposite direction.
The present invention is further arranged to：The bag wheel of opening is provided with the air drain being connected with the first valve adaptation, the air drain
Inwall is provided with passage, and one end of first tracheae is connected with passage adaptation, and the other end connects vacuum by valve actuating mechanism
Pump.
The present invention is further arranged to：The second air-breathing nozzle assembly includes rotor plate, two the second gas being vertically arranged
Mouth, two the second tracheaes and rotating driving devices, the rotating driving device include the drive that rotary shaft and driving rotary shaft are rotated
Dynamic component, on the rotary shaft, both sides are fixedly installed one end suit of the rotor plate after the curved extension upward of the other end
Have a suction nozzle positioning sleeve, be provided with air intake passage in the suction nozzle positioning sleeve, one end of two air intake passages respectively with two the second gas
Mouth is connected, and the other end is connected with two the second tracheaes, and second tracheae connects vavuum pump by pilot solenoid valve and blown
Gas air bag.
The present invention is further arranged to：The transmission component is driven by cam control gear, and the drive component includes
Sprocket wheel and servomotor, the servomotor are rotated by chain wheel drive rotary shaft.
The present invention is further arranged to：Bag wheel of opening on the first air-breathing nozzle assembly is in rollover states all the time.
The present invention is further arranged to：The paper bag base opening opening mechanism also includes photoelectric sensor switch, for sensing paper
Whether bag, which reaches at the second air-breathing nozzle assembly station and control paper bag to suspend when reaching at the second air-breathing nozzle assembly station, makes second
Vacuum noz(zle) component operation.
The present invention is further arranged to：Existing between the guide plate in the same direction with paper bag body and paper bag transport platform makes paper bag body
The gap of process.
The present invention is further arranged to：The second air-breathing nozzle assembly is arranged between the first guide groove and the second guide groove.
The present invention is further arranged to：The paper bag sequentially passes through the first air-breathing nozzle assembly and the second air-breathing nozzle assembly.
Beneficial effects of the present invention：The paper bag base opening opening mechanism for the full-automatic paper bag machine that above-mentioned technical proposal is provided,
It may be implemented in the course of conveying of paper bag and automatically open the function of paper bag base opening, in order to be put into bottom card into paper bag base opening,
The operating efficiency of paper bag production is improved, production cost has been saved, with good economic benefit.
Brief description of the drawings
Fig. 1 is the structural representation with the first type of paper bag for folding base opening in the embodiment of the present invention.
Fig. 2 is the structural representation of paper bag base opening opening mechanism in the embodiment of the present invention.
Fig. 3 is the structural representation of the first air-breathing nozzle assembly in the embodiment of the present invention.
Fig. 4 is the structural representation of the second air-breathing nozzle assembly in the embodiment of the present invention.
Illustrate in figure：1- paper bag transport platforms；11- air entries；2- the first air-breathing nozzle assemblies；21- opens bag wheel；211- air drains；
212- passages；213- vavuum pumps；214- valve actuating mechanisms；The tracheaes of 22- first；The valves of 23- first；24- overturning drive devices；
241- trip shafts；242- transmission components；2421- sprocket wheels；243- cam control gears；3- the second air-breathing nozzle assemblies；31- is rotated
Plate；The valves of 32- second；The tracheaes of 33- second；331- pilot solenoid valves；332- vavuum pumps；333- air blowing air bags；34- rotation drivings
Device；341- rotary shafts；342- drive components；3421- sprocket wheels；35- suction nozzle positioning sleeves；351- air intake passages；4- guide grooves；41-
First guide groove；The guide grooves of 42- second；5- paper bags；51- flangings.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
As shown in Figures 1 and 2, the paper bag base opening opening mechanism of a kind of full-automatic paper bag machine, including paper bag transport platform 1 and use
In the air-breathing nozzle assembly for drawing the flanging 51 of 5 base opening of paper bag two, in addition to guide groove 4, the air-breathing nozzle assembly includes the first vacuum noz(zle)
The air-breathing nozzle assembly 3 of component 2 and second, the air-breathing nozzle assembly is installed along the conveying direction of paper bag 5 order and draws the bottom of paper bag 5 respectively
Two relative flangings 51 of mouth, the first air-breathing nozzle assembly 2 is arranged on the top of paper bag transport platform 1, described second turnablely
Air-breathing nozzle assembly 3 sets the lower section of paper bag transport platform 1, and the paper bag transport platform 1 is provided with the upper and lower surface of insertion paper bag transport platform 1
Air entry 11, second component suction nozzle 3 can by rotate through air entry 11, to reach paper bag defeated from the lower section of paper bag transport platform 1
Send the top of platform 1, the guide groove 4 include mutually passing connect in the first horn-like guide groove 41 and the second parallel vertically guide groove 42,
The paper bag 5 base opening of paper bag 5 after the processing of air-breathing nozzle assembly enters in guide groove 4.
In said structure, by the air-breathing nozzle assembly passed through in the course of conveying of paper bag 5 to open the flanging of the base opening of paper bag 5
51, the first air-breathing nozzle assembly 2 and the second air-breathing nozzle assembly 3 are cooperated and realized, the flanging 51, Ran Houzai of paper bag 5 is drawn respectively
Make the base opening being opened on paper bag 5 enter make that base opening opens in guide groove 4 more fully to be put into bottom card, whole process automation machine
Tool is operated, and is improved the operating efficiency of the production of paper bag 5, has been saved production cost.
As shown in figure 3, the first air-breathing nozzle assembly 2 includes opening bag wheel 21, the first tracheae 22, the first valve 23 and upset
Drive device 24, first valve 23 is arranged on out on bag wheel 21 and is connected with the first tracheae 22, the upset driving dress
Putting 24 includes the transmission component 242 that trip shaft 241 and driving trip shaft 241 are rotated, and the bag wheel 21 of opening is sleeved on trip shaft 241
Go up and reverses direction is opposite with the conveying direction of paper bag 5.The bag wheel 21 of opening is provided with the air drain being connected with the first valve 23 adaptation
211, the inwall of air drain 211 is provided with passage 212, and one end of first tracheae 22 is connected with the adaptation of passage 212, another
End connects vavuum pump 213 by valve actuating mechanism 214.Further, the bag wheel 21 of opening on the first air-breathing nozzle assembly 2 is in all the time
Rollover states.
The reverses direction under the rotation of trip shaft 241 of bag wheel 21 of opening in above-mentioned first air-breathing nozzle assembly 2 is conveyed with paper bag 5
In the opposite direction, the first valve 22 opened on bag wheel 21 is also overturn therewith, the position located directly below of the first valve 22 when paper bag 5 passes through
Put and contacted with the base opening flanging 51 of paper bag 5 and flanging 51 is adsorbed in the presence of the first tracheae 22, paper bag 5 continues to be fed forward,
First valve 22 is also overturn, and then both are mutually disengaged the first valve 22 drive flanging 51 Unscrew, and the first valve 22 continues
Upset carries out absorption next time opening procedure.First air-breathing nozzle assembly 2 is mainly used to be adsorbed during the top turnover of paper bag 5
One flanging 51 is opened, and trip shaft 241 is arranged on the top of paper bag transport platform 1 and drives its upset to complete by transmission component 242
The opening procedure of flanging 51 of first air-breathing nozzle assembly 2.
Rotor plate 31 that the second air-breathing nozzle assembly 3 includes being vertically arranged, two the second valve 32, two the second tracheaes
33 and rotating driving device 34, the rotating driving device 34 includes the driving group that rotary shaft 341 and driving rotary shaft 341 are rotated
Part 342, one end of the rotor plate 31 is sleeved in rotary shaft 341, and both sides are fixed after the curved extension upward of the other end
It is provided with suction nozzle positioning sleeve 35, the suction nozzle positioning sleeve 35 and is provided with air intake passage 351, one end point of two air intake passages 351
It is not connected with two the second valves 32, the other end is connected with two the second tracheaes 33, and second tracheae 33 passes through guide
Magnetic valve 331 connects vavuum pump 332 and air blowing air bag 333.Further, the base opening opening mechanism of paper bag 5 also includes light inductance
Inductive switch（It is not drawn into）, for sense paper bag 5 whether reach at the station of the second air-breathing nozzle assembly 3 and control paper bag 5 reach second
Pause makes the second air-breathing nozzle assembly 3 work when at the station of air-breathing nozzle assembly 3.Further, the second air-breathing nozzle assembly 3 is arranged on
Between first guide groove 41 and the second guide groove 42.
Above-mentioned second air-breathing nozzle assembly 3 is arranged on the lower section of paper bag transport platform 1, passes through the air entry in paper bag transport platform 3
11 turn to the top of paper bag transport platform 1 adsorbs to the flanging 51 of paper bag 5, senses whether paper bag 5 arrives by photoelectric sensor switch
Up at the station of the second air-breathing nozzle assembly 3, suspend if reached when just control paper bag 5 is reached at the station of the second air-breathing nozzle assembly 3, connect
Rotor plate 31 to rotate up and rotated to the position located directly below of the second valve 32 under the driving of rotary shaft 341, therewith two
Individual second valve 32 and the Contact-sorption of 5 flanging of paper bag 51, then the second air-breathing nozzle assembly 3 restores and the second valve 32 drives flanging
51 open, and paper bag 5 continues to be fed forward and entered in guide groove 4 after the second air-breathing nozzle assembly 3 completes the absorption opening of flanging 51, the
To base opening flanging 51, not fully vertical state plays the effect of being vertically directed to one guide groove 41, subsequently into entering in the second guide groove 42
The whole base opening flanging 51 of paper bag 5 is set to erect more neat in the guide groove for entering substantially vertical state, so as to smoothly putting for follow-up bottom card
Enter.
The transmission component 242 is driven by cam control gear 243, and the drive component includes sprocket wheel 2421 and servo
Motor, the servomotor is rotated by chain wheel drive rotary shaft 341；It is described to be conveyed with paper bag body guide plate 41 in the same direction with paper bag
There is the gap for passing through paper bag body between platform 1；The paper bag 5 sequentially passes through the first air-breathing nozzle assembly 2 and the second vacuum noz(zle) group
Part 3, the first air-breathing nozzle assembly 2 is used for adsorbing the flanging 51 of paper bag 5 opened along along the conveying direction of paper bag 5 rearward, and paper bag 5 is not
The second valve 32 is set to complete absorption opening work by suspending before the second air-breathing nozzle assembly 3.
The base opening opening mechanism of paper bag 5 for the full-automatic paper bag machine that above-mentioned technical proposal is provided, may be implemented in the defeated of paper bag 5
The function of the base opening of paper bag 5 is automatically opened during sending, in order to be put into bottom card into the base opening of paper bag 5, paper bag 5 is improved and produces
Operating efficiency, production cost has been saved, with good economic benefit.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, some improvement and modification can also be made, above-mentioned hypothesis these
Improvement and modification also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine, including paper bag transport platform and for drawing the folding of paper bag base opening two
The air-breathing nozzle assembly on side, it is characterised in that：Also include guide groove, the air-breathing nozzle assembly includes the first air-breathing nozzle assembly and second and inhaled
Valve component, the air-breathing nozzle assembly is installed along paper bag conveying direction order and draws the relative flanging of paper bag base opening two respectively,
The first air-breathing nozzle assembly is arranged on the top that paper bag transport platform send platform turnablely, and the second air-breathing nozzle assembly sets paper
The lower section of bag transport platform, the paper bag transport platform is provided with the air entry of insertion paper bag transport platform upper and lower surface, and described second inhales
Nozzle assembly can be below paper bag transport platform by rotating through above air entry arrival paper bag transport platform, and the guide groove includes mutual
Pass connect in the first horn-like guide groove and vertical the second parallel guide groove, paper bag paper bag after air-breathing nozzle assembly is handled
Base opening enters in guide groove.
2. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 1, it is characterised in that：Described
One air-breathing nozzle assembly includes opening bag wheel, the first tracheae, the first valve and overturning drive device, and first valve is arranged on out bag
It is connected on wheel and with the first tracheae, the overturning drive device includes the transmission component that trip shaft and driving trip shaft are rotated,
It is described to open that bag wheel is sleeved on trip shaft and reverses direction is opposite with paper bag conveying direction.
3. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 2, it is characterised in that：It is described to open
Bag wheel is provided with is adapted to the air drain being connected with the first valve, and the air drain inwall is provided with passage, one end of first tracheae
It is connected with passage adaptation, the other end connects vavuum pump by valve actuating mechanism.
4. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to Claims 2 or 3, it is characterised in that：Institute
Rotor plate, two the second valves, two the second tracheaes and rotating driving devices that the second air-breathing nozzle assembly includes being vertically arranged are stated,
The rotating driving device includes the drive component that rotary shaft and driving rotary shaft are rotated, and one end of the rotor plate is sleeved on rotation
Both sides, which are fixedly installed in suction nozzle positioning sleeve, the suction nozzle positioning sleeve, in rotating shaft, after the curved extension upward of the other end sets
There is air intake passage, one end of two air intake passages is connected with two the second valves respectively, the other end and two the second tracheae phases
Connection, second tracheae connects vavuum pump and air blowing air bag by pilot solenoid valve.
5. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 4, it is characterised in that：It is described to pass
Dynamic component is driven by cam control gear, and the drive component includes sprocket wheel and servomotor, and the servomotor passes through chain
Wheel drive rotary shaft rotates.
6. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to Claims 2 or 3, it is characterised in that：Institute
The bag wheel of opening stated on the first air-breathing nozzle assembly is in rollover states all the time.
7. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 1, it is characterised in that：The paper
Whether bag base opening opening mechanism also includes photoelectric sensor switch, reach at the second air-breathing nozzle assembly station and control for sensing paper bag
Pause makes the second vacuum noz(zle) component operation when paper bag processed is reached at the second air-breathing nozzle assembly station.
8. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 1, it is characterised in that：It is described with
There is the gap for passing through paper bag body between paper bag body guide plate in the same direction and paper bag transport platform.
9. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 1, it is characterised in that：Described
Two air-breathing nozzle assemblies are arranged between the first guide groove and the second guide groove.
10. a kind of paper bag base opening opening mechanism of full-automatic paper bag machine according to claim 1, it is characterised in that：It is described
Paper bag sequentially passes through the first air-breathing nozzle assembly and the second air-breathing nozzle assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555390.2A CN107139534A (en) | 2017-07-10 | 2017-07-10 | A kind of paper bag base opening opening mechanism of full-automatic paper bag machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710555390.2A CN107139534A (en) | 2017-07-10 | 2017-07-10 | A kind of paper bag base opening opening mechanism of full-automatic paper bag machine |
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| Publication Number | Publication Date |
|---|---|
| CN107139534A true CN107139534A (en) | 2017-09-08 |
Family
ID=59776372
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710555390.2A Pending CN107139534A (en) | 2017-07-10 | 2017-07-10 | A kind of paper bag base opening opening mechanism of full-automatic paper bag machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN107139534A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407390A (en) * | 2018-05-10 | 2018-08-17 | 宁波飞虹文化用品有限公司 | A kind of full-automatic handbag bottom card places technique and its equipment |
| CN108608675A (en) * | 2018-03-28 | 2018-10-02 | 江苏南江智能装备股份有限公司 | A kind of novel paper handle machine |
| CN111330952A (en) * | 2020-03-16 | 2020-06-26 | 福州市长乐区汇智科技服务有限公司 | Quick splitting equipment for unqualified paper bags |
| CN113787770A (en) * | 2021-08-25 | 2021-12-14 | 重庆醉美包装印务有限公司 | Bag body forming processing technology and equipment |
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| DE19540150A1 (en) * | 1995-10-27 | 1997-04-30 | Windmoeller & Hoelscher | Drawing up device for continuously cross-conveyed hose sections - is for forming bases in bag production and has paired support tubes connected to suction air sources |
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| CN104816505A (en) * | 2015-04-30 | 2015-08-05 | 温州柏仕诚机械有限公司 | Bottom forming machine for portable paper bags |
| CN105235287A (en) * | 2015-10-19 | 2016-01-13 | 温州科隆机械有限公司 | Bottom card placing device of full-automatic paper bag machine |
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| CN207028338U (en) * | 2017-07-10 | 2018-02-23 | 温州巨凯机械有限公司 | A kind of paper bag base opening opening mechanism of full-automatic paper bag machine |
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| US3884278A (en) * | 1972-02-19 | 1975-05-20 | Shigeo Nakashima | Automatic bag feeding device equipped with an automatic charging device |
| DE19540150A1 (en) * | 1995-10-27 | 1997-04-30 | Windmoeller & Hoelscher | Drawing up device for continuously cross-conveyed hose sections - is for forming bases in bag production and has paired support tubes connected to suction air sources |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108608675A (en) * | 2018-03-28 | 2018-10-02 | 江苏南江智能装备股份有限公司 | A kind of novel paper handle machine |
| CN108608675B (en) * | 2018-03-28 | 2019-06-04 | 江苏南江智能装备股份有限公司 | A kind of novel paper handle machine |
| CN108407390A (en) * | 2018-05-10 | 2018-08-17 | 宁波飞虹文化用品有限公司 | A kind of full-automatic handbag bottom card places technique and its equipment |
| CN108407390B (en) * | 2018-05-10 | 2023-05-09 | 宁波飞虹文化用品有限公司 | Full-automatic handbag bottom card placement device process and equipment thereof |
| CN111330952A (en) * | 2020-03-16 | 2020-06-26 | 福州市长乐区汇智科技服务有限公司 | Quick splitting equipment for unqualified paper bags |
| CN111330952B (en) * | 2020-03-16 | 2022-03-22 | 莱悦包装科技(烟台)有限公司 | Quick splitting equipment for unqualified paper bags |
| CN113787770A (en) * | 2021-08-25 | 2021-12-14 | 重庆醉美包装印务有限公司 | Bag body forming processing technology and equipment |
| CN113787770B (en) * | 2021-08-25 | 2023-08-04 | 重庆醉美包装印务有限公司 | Bag body forming processing technology and equipment |
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Application publication date: 20170908 |