CN110039832A - A kind of rotation bag folding device - Google Patents
A kind of rotation bag folding device Download PDFInfo
- Publication number
- CN110039832A CN110039832A CN201910417166.6A CN201910417166A CN110039832A CN 110039832 A CN110039832 A CN 110039832A CN 201910417166 A CN201910417166 A CN 201910417166A CN 110039832 A CN110039832 A CN 110039832A
- Authority
- CN
- China
- Prior art keywords
- shaft
- rotating disk
- presser feet
- rotary shaft
- rotation
- 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.)
- Withdrawn
Links
- 230000000694 effects Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract 2
- 238000004806 packaging method and process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 230000007306 turnover Effects 0.000 description 3
- 238000009958 sewing Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/92—Delivering
- B31B70/98—Delivering in stacks or bundles
- B31B70/982—Delivering in stacks or bundles involving folding of the bags
Landscapes
- Auxiliary Devices For And Details Of Packaging Control (AREA)
Abstract
The invention belongs to the rear finishing equipment fields on bag product production line, in particular to a kind of rotation bag folding device, including rotary shaft, several rotating disks are arranged in rotary shaft with interval, two mutually symmetrical shafts pass through rotating disk on the basis of rotary shaft, secure bond has movable presser feet on shaft axle body, the fixing presser foot matched with movable presser feet is fixedly connected in the disk of rotating disk, also secure bond is equipped with pressure arm in shaft, pressure arm is fixedly attached in rotating disk by spring, shaft end is fixedly installed sliding pivoted arm, when sliding pivoted arm one end is resisted against salient point, slide pivoted arm makes movable presser feet that spring contraction power be overcome to be in open configuration by shaft, when being resisted against concave point, crossing shaft in spring contraction power hold makes movable presser feet be in closed state.
Description
Technical field
The invention belongs to the rear finishing equipment field on bag product production line, in particular to a kind of rotation bag folding device.
Background technique
Polywoven Bag sewing machine, Polywoven Bag automatic bag sheathing sewing device, paper and plastics compound bag process equipment
Deng being common braided packing bag production equipment, their processing purpose is exactly to make the braided packing bag of finished product, convenient for subsequent
Use.Having an important link in the process is folded bag closing bag, and there are two types of modes for the folded bag of tradition, and one is use earlier
It throws bag and folds bag mode, finished product braided packing bag is dished out process equipment using the acceleration of delivery wheel, designated position is fallen in, by keeping off
Plate is into folded bag is arranged, and the speed of service, which can comparatively fast meet, quickly throws folded bag requirement, but because having used gravity principle, volume when making to leave
It is different to knit packaging bag position, folded bag uniformity is very poor, needs artificial whole bag cleaning.One is turnover panel modes, pass through carbon fiber, steel
Silk or nylon sheet etc. are fixed on one plate face of formation in shaft, so that braided packing bag is tilted out processing by the overturning of plate face and set
It is standby, designated position is fallen in, turnover panel returns again to origin-location, and to subsequent overturning, repetitive operation forms folded bag, and folded bag is neat, but
Because firmly the time is longer again for turnover panel, it is not suitable for quickly folding bag.With the continuous realization of production automation, to various production equipment efficiency
It is required that raising, bag mode folded for tradition has been unable to meet production needs.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of rotation bag folding devices, include in structure and driving electricity
The rotary shaft of machine connection, rotary shaft can carry out axial rotation under the driving of driving motor, rotation shaft length side in edge in rotary shaft
It is the rotating disk being coaxially disposed to being arranged with several with interval with rotary shaft, is secure bond between rotary shaft and rotating disk,
Further include the length direction two piece shafts parallel with rotary shaft, two shafts on the basis of rotary shaft it is mutually symmetrical simultaneously
Across rotating disk, shaft can carry out axial rotation in the case where being arranged in rotating disk,
On shaft axle body secure bond be equipped with each rotating disk movable presser feet correspondingly, it is fixed in the disk of rotating disk
It is connected with the fixing presser foot matched with movable presser feet, also secure bond is equipped with pressure arm on shaft axle body, and pressure arm is solid by spring
Surely it being connected in rotating disk, shaft is fixedly installed sliding pivoted arm along the one end in length direction,
Further include a sector and be equipped with driving cylinder with sector, driving cylinder can drive fan-shaped convex
Wheel shaft is to rotation, and when sliding pivoted arm is resisted against salient point in sector, sliding pivoted arm by shaft makes movable presser feet gram
The elastic contractile force for taking spring leaves fixing presser foot and is in open configuration, when sliding pivoted arm is resisted against concave point in sector,
Crossing shaft in the elastic contractile force hold of spring makes movable presser feet be in closed state against fixing presser foot.
As preferred: pressure arm and connected spring are respectively positioned between two pieces of adjacent rotating disks；
As preferred: fixing presser foot is single plate structure, and movable presser feet, which is that two boards are vertically fixed, to be spliced
Structure, one of plate are fixedly connected with shaft, and another block of plate is outer with fixing presser foot in the closure state in movable presser feet
Plate face face face paste is closed；
The outer periphery of rotating disk include be the straightway being equipped with fixing presser foot, on straightway and fixing presser foot outwardly
Plate face flush.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rotation bag folding device in the present invention,
Wherein, rotating disk 1-1, bearing block 1-2, driving motor 1-3, rotary shaft 1-4, shaft 1-5, movable presser feet 1-6, Gu
Level pressure foot 1-7, pressure arm 1-8, spring 1-9 slide pivoted arm 1-10, sector 1-11, joint arm 1-12, drive cylinder 1-13, peace
Fill hole 1-131.
Specific embodiment
It should be noted that word "inner" and "outside" used in description of the invention are referred respectively to towards or away from spy
Determine the direction at component geometry center, these are merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this hair
Bright limitation.
As shown in Fig. 1, rotation bag folding device of the invention includes connecting in structure with driving motor 1-3 first
Rotary shaft 1-4, driving motor 1-3 are located at one end of rotary shaft 1-4, driving motor 1- of the rotary shaft 1-4 in fixed installation
Axial rotation can be carried out under 3 driving, one end of separate driving motor 1-3 and the axis being fixed on the rack on rotary shaft 1-4
It holds a 1-2 to be connected, the inner ring of bearing block 1-2 is used to support rotary shaft 1-4 and rotary shaft 1-4 is followed axially to rotate, bearing block
The outer ring of 1-2 is fixed on the rack (structure of bearing block 1-2 and using be the prior art) as axial restraint point, rotary shaft
1-4 is upper to be arranged with the rotating disk 1-1 that several and rotary shaft 1-4 is coaxial arrangement, rotation along length direction with interval
It is secure bond between axis 1-4 and rotating disk 1-1,
Rotating bag folding device further includes length direction two piece the shaft 1-5s, two piece shaft 1-5s parallel with rotary shaft 1-4
It is symmetrical arranged on the basis of rotary shaft 1-4 and sequentially passes through each rotating disk 1-1, shaft 1-5 is being arranged in each rotating disk 1-1
In the case where can carry out axial rotation,
Secure bond is equipped with movable presser feet 1-6 corresponding with each rotating disk 1-1, movable presser feet on shaft 1-5 axle body
1-6 is fixedly connected in the disk and movable presser feet 1-6 close to one of disk of corresponding rotating disk 1-1
The fixing presser foot 1-7 matched, also secure bond is equipped with pressure arm 1-8 on the axle body of shaft 1-5, and pressure arm 1-8 passes through spring
1-9 is fixedly attached in rotating disk 1-1 disk, and pressure arm 1-8 and connected spring 1-9 are respectively positioned on adjacent two pieces
Between rotating disk 1-1, shaft 1-5 along the one end in length direction be fixedly connected with sliding pivoted arm 1-10, pressure arm 1-8 and
The length direction of sliding pivoted arm 1-10 is the normal direction diameter extension along shaft 1-5,
Rotation bag folding device further includes a sector 1-11 and is equipped with driving vapour with sector 1-11
Cylinder 1-13, driving cylinder 1-13 can drive sector 1-11 around reciprocal axial wobble (such as attached drawing of the point of rotation by joint arm 1-12
Shown in 1, sector 1-11 is axially fixedly connected with a sleeve, and sleeve rotation is socketed on rotary shaft 1-4, the set
Separate gas on telescopic rod of the extension rod (joint arm 1-12) far from sleeve one end and driving cylinder 1-13 stretched out is fixed on cylinder outward
It is articulated connection between cylinder one end, and cylinder is hinged on some fixed point by the mounting hole 1-131 of its end.Cylinder is stretched
Contracting realizes the coaxial swing of sector 1-11, due to cylinder to pull extension rod and then drive sleeve axially rotation
It is to be hinged by its end, rather than be completely fixed, therefore occurred during Telescopic-cylinder by the reaction force of extension rod
Change in angle, to make it possible that change in location occurs for extension rod),
When sliding pivoted arm 1-10 is resisted against salient point on sector 1-11, sliding pivoted arm 1-10 passes through shaft 1-5
Make movable presser feet 1-6 that the elastic contractile force of spring 1-9 be overcome to be in open configuration far from fixing presser foot 1-7；When sliding pivoted arm
When 1-10 is resisted against concave point on sector 1-11, pass through shaft 1-5 in the elastic contractile force hold 1-8 of spring 1-9
Movable presser feet 1-6 is set to be in closed state against fixing presser foot 1-7,
Further, fixing presser foot 1-7 is single plate structure, and movable presser feet 1-6, which is that two boards are vertically fixed, to spell
L-type structure made of connecing, one block of plate in movable presser feet 1-6 are fixedly connected with shaft 1-5, and another block of plate is in movable presser feet
1-6 is tight with the outer plate surface face face paste of fixing presser foot 1-7 in the closure state,
The outer periphery of rotating disk 1-1 include be the straightway being equipped with fixing presser foot 1-7, straightway and fixed press
Plate face on foot 1-7 outwardly flushes.
Based on above-mentioned apparatus,
(1) make the straightway and corresponding fixing presser foot 1- on rotating disk 1-1 under the control of rotary shaft 1-4 first
7 outer plate surfaces hold edge (packaging bag arrival straightway and the arrival fixing presser foot for being conveyed through the packaging bag come from bottom to top
Blocking is not affected by before between 1-7 and movable presser feet 1-6), at this point, one end far from shaft 1-5 on sliding pivoted arm 1-10
It is resisted against on the salient point of sector 1-11 and (slides one end on pivoted arm 1-10 far from shaft 1-5 to be extended with and shaft 1-5
For the parallel nose bar of axis, rolling bearing is arranged on nose bar, the upper one end far from shaft 1-5 sliding pivoted arm 1-10 passes through the rolling
Dynamic bearing is slidingly born against in sector 1-11 outer periphery, sliding pivoted arm 1-10 rotatably enter sector 1-11 with
And with sector 1-11 closest to rotating disk 1-1 between), under the supporting role of salient point, sliding pivoted arm 1-10 is logical
Crossing shaft 1-5 makes movable presser feet 1-6 overcome the elastic contractile force of spring 1-9 and be in far from fixing presser foot 1-7 and open shape
State makes packaging bag edge to be clamped can enter this and dehisces,
(2) in the above-described state, keep driving motor 1-3 motionless, i.e. rotary shaft 1-4 and rotating disk 1-1 are not rotated, and are passed through
Drive cylinder driving sector 1-11 that the axial rotation (the rotation direction such as attached drawing of sector 1-11 occurs with its point of rotation
In 1 shown in camber line arrow A), lose the end for the sliding pivoted arm 1-10 for being resisted against salient point on sector 1-11 originally
After the support of boss, the concave point on sector 1-11, while bullet are come under the elastic contractile force effect of spring 1-9
Spring 1-9 will also be fixed on the movable presser feet 1-6 on shaft 1-5 (that root shaft 1-5 in attached drawing 1 rearward) to fixing presser foot 1-7
Direction pulls, and makes one block of plate of movable presser feet 1-6 and the outer plate surface face face paste co-clip hard-pressed bale pack edge of fixing presser foot 1-7
It is (jointly real to the horizontal edge of same packaging bag after several activity presser feet 1-6 closure fixed on same root shaft 1-5
It now clamps)；Meanwhile symmetrical shaft 1-5 (is called in the following text " symmetrical shaft 1-5 ", i.e., forward that in attached drawing 1 with above-mentioned shaft 1-5
Root shaft 1-5) on sliding pivoted arm 1-10 on far from symmetrical shaft 1-5 one end by being resisted against the recessed of sector 1-11
Accordingly be pushed on point on the salient point for being resisted against sector 1-11 (far from symmetrical shaft 1-5 on sliding pivoted arm 1-10
One end equally passes through rolling bearing and slidingly bears against in sector 1-11 outer periphery, and specific structure is the same as the cunning on shaft 1-5
Turn arm 1-10 is similar), the movable presser feet 1-6 of closure opens originally on symmetrical shaft 1-5, at this point, the state of whole device
Just as shown in Fig. 1,
(3) by driving motor 1-3 driving rotary shaft 1-4 and rotating disk 1-1, axially (rotating disk 1-1's should for rotation at this time
Rotation direction is as shown in camber line arrow B in attached drawing 1) half-turn makes packaging bag be pulled to stacked position, due to movable presser feet 1-6 with
Fixing presser foot 1-7 has been the state that face face is close to, and during the axially rotation half-turn, fixing presser foot 1-7 is resisted
Movable presser feet 1-6 and further by being fixed shaft 1-5 with the relative position of movable presser feet 1-6, to drive and shaft
The relative position of 1-5 is that the end of fixed sliding pivoted arm 1-10 follows rotating disk 1- far from sector 1-11 outer periphery
1 rotation,
And during the axially rotation half-turn, originally sector 1-11 is to maintain motionless, pivoted arm to be slided
After the end of 1-10 is far from sector 1-11 outer periphery certain distance, reset driving cylinder to drive sector 1-
11 positions being returned in step (1) simultaneously continue to remain stationary, and during the return, slide on pivoted arm 1-10 far from shaft 1-
5 one end is always far from sector 1-11 outer periphery, therefore, during entire axial rotation half-turn, movable presser feet
1-6 and fixing presser foot 1-7 is clamped always as closed state；
Meanwhile symmetrical shaft 1-5 (including movable presser feet 1-6 and corresponding fixing presser foot 1-7 thereon) is also corresponding
Ground has been transferred to rear, falls in shaft 1-5 on the initial position in step (1), since symmetrical shaft 1-5 is transferred to rear
Sector 1-11 has been completed return in the process, therefore during the entire process of symmetrical shaft 1-5 is rotated, thereon
Movable presser feet 1-6 is always opening shape,
(4) it keeps driving motor 1-3 motionless, is driven by driving cylinder same in sector 1-11 completion and step (2)
The rotation of sample, this time make the closure of the movable presser feet 1-6 on symmetrical shaft 1-5 thus to second packaging bag come is transmitted
Edge, which is formed, to be clamped, and is the transfer of second packaging bag, is stacked and be ready；Meanwhile going to the activity on the shaft 1-5 in front
Presser feet 1-6 is opened, and is slipped to first packaging bag therefrom in expected stacked position, is completed the heap to first packaging bag
It is folded,
By aforesaid operations sequence, so circulation is gone down.
The frequency of driving motor 1-3 driving rotary shaft 1-4, rotating disk 1-1 rotation, and driving cylinder are driven in advance
The frequency that dynamic sector 1-11 is swung is set, and rotating disk 1-1 and sector 1-11 tacit agreement are cooperated.
Claims (4)
1. a kind of rotation bag folding device, it is characterised in that: the rotation bag folding device includes and driving motor in structure
The rotary shaft (1-4) of (1-3) connection, the rotary shaft (1-4) can carry out axis under the driving of the driving motor (1-3)
To rotation, it is arranged with interval on the rotary shaft (1-4) along length direction and several is with the rotary shaft (1-4)
The rotating disk (1-1) of coaxial arrangement is secure bond between the rotary shaft (1-4) and the rotating disk (1-1),
The rotation bag folding device further includes the length direction two piece shafts (1-5) parallel with the rotary shaft (1-4), and two
Shaft described in root (1-5) is symmetrical arranged on the basis of the rotary shaft (1-4) and passes through each rotating disk (1-1), institute
Axial rotation can be carried out in the case where being arranged in each rotating disk (1-1) by stating shaft (1-5),
Secure bond is equipped with movable presser feet (1-6) corresponding with each rotating disk (1-1) on shaft (1-5) axle body,
The movable presser feet (1-6) close to the corresponding rotating disk (1-1) one of disk, in the disk
It is fixedly connected with the fixing presser foot (1-7) matched with the movable presser feet (1-6), is gone back on the axle body of the shaft (1-5)
Secure bond is equipped with pressure arm (1-8), and the pressure arm (1-8) is fixedly attached to the rotating disk (1-1) by spring (1-9)
On, the shaft (1-5) is fixedly installed sliding pivoted arm (1-10) along the one end in length direction,
The rotation bag folding device further includes a sector (1-11) and sets with the sector (1-11) cooperation
It is equipped with driving cylinder, the driving cylinder can drive the sector (1-11) around the reciprocal axial wobble of the point of rotation,
When the sliding pivoted arm (1-10) is resisted against salient point on the sector (1-11), the sliding pivoted arm
(1-10) by the shaft (1-5) make the movable presser feet (1-6) overcome the elastic contractile force of the spring (1-9) from
It opens the fixing presser foot (1-7) and is in open configuration；When the sliding pivoted arm (1-10) is resisted against the sector (1-
11) on when concave point, the pressure arm (1-8) is made by the shaft (1-5) under the elastic contractile force of the spring (1-9)
The activity presser feet (1-6) is in closed state against the fixing presser foot (1-7).
2. rotation bag folding device as described in claim 1, it is characterised in that: the pressure arm (1-8) and connected institute
Spring (1-9) is stated to be respectively positioned between the rotating disk (1-1) of adjacent two pieces.
3. rotation bag folding device as described in claim 1, it is characterised in that: the fixing presser foot (1-7) is single plate
Structure, the activity presser feet (1-6) are the two boards vertically fixed L-type structure being spliced, one of plate and the shaft
(1-5) is fixedly connected, another block of plate the movable presser feet (1-6) in the closure state with the fixing presser foot (1-7)
Outer plate surface face face paste close.
4. as claimed in claim 3 rotation bag folding device, it is characterised in that: the outer periphery of the rotating disk (1-1) include with
The fixing presser foot (1-7) is the straightway being equipped with, the straightway and the plate on the fixing presser foot (1-7) outwardly
Face flushes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417166.6A CN110039832A (en) | 2019-05-20 | 2019-05-20 | A kind of rotation bag folding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910417166.6A CN110039832A (en) | 2019-05-20 | 2019-05-20 | A kind of rotation bag folding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110039832A true CN110039832A (en) | 2019-07-23 |
Family
ID=67282579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910417166.6A Withdrawn CN110039832A (en) | 2019-05-20 | 2019-05-20 | A kind of rotation bag folding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110039832A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH390661A (en) * | 1960-05-28 | 1965-04-15 | Natanael Bernerus David | sewing machine |
| DE3838563A1 (en) * | 1988-11-14 | 1990-05-17 | Windmoeller & Hoelscher | DEVICE FOR STACKING FLAT OBJECTS |
| CN203047594U (en) * | 2012-12-31 | 2013-07-10 | 广东众和化塑有限公司 | Bag counting and stacking device used on woven bag production line |
| CN103498294A (en) * | 2013-07-15 | 2014-01-08 | 兰溪市洁雅纺织有限公司 | Output arranging device on sewing equipment |
| CN204149591U (en) * | 2014-09-28 | 2015-02-11 | 杭州彼特环保包装有限公司 | Paper bag alignment machine structure |
| CN205653571U (en) * | 2016-05-24 | 2016-10-19 | 蔡丰俭 | Out pocket sewing machine |
| CN206486684U (en) * | 2017-02-13 | 2017-09-12 | 江辉 | High speed hook line embroidering machine head |
| CN108481809A (en) * | 2018-03-21 | 2018-09-04 | 芜湖恒耐特传动设备有限公司 | A kind of packaging bag over-turning apparatus |
| CN210161682U (en) * | 2019-05-20 | 2020-03-20 | 江苏万乐自动化装备有限公司 | Rotary bag folding device |
-
2019
- 2019-05-20 CN CN201910417166.6A patent/CN110039832A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH390661A (en) * | 1960-05-28 | 1965-04-15 | Natanael Bernerus David | sewing machine |
| DE3838563A1 (en) * | 1988-11-14 | 1990-05-17 | Windmoeller & Hoelscher | DEVICE FOR STACKING FLAT OBJECTS |
| CN203047594U (en) * | 2012-12-31 | 2013-07-10 | 广东众和化塑有限公司 | Bag counting and stacking device used on woven bag production line |
| CN103498294A (en) * | 2013-07-15 | 2014-01-08 | 兰溪市洁雅纺织有限公司 | Output arranging device on sewing equipment |
| CN204149591U (en) * | 2014-09-28 | 2015-02-11 | 杭州彼特环保包装有限公司 | Paper bag alignment machine structure |
| CN205653571U (en) * | 2016-05-24 | 2016-10-19 | 蔡丰俭 | Out pocket sewing machine |
| CN206486684U (en) * | 2017-02-13 | 2017-09-12 | 江辉 | High speed hook line embroidering machine head |
| CN108481809A (en) * | 2018-03-21 | 2018-09-04 | 芜湖恒耐特传动设备有限公司 | A kind of packaging bag over-turning apparatus |
| CN210161682U (en) * | 2019-05-20 | 2020-03-20 | 江苏万乐自动化装备有限公司 | Rotary bag folding device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190723 |
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| WW01 | Invention patent application withdrawn after publication |