CN109049855A - The bottom long side infolding mechanism of plastic three-dimensional bag webs material - Google Patents
The bottom long side infolding mechanism of plastic three-dimensional bag webs material Download PDFInfo
- Publication number
- CN109049855A CN109049855A CN201811041900.5A CN201811041900A CN109049855A CN 109049855 A CN109049855 A CN 109049855A CN 201811041900 A CN201811041900 A CN 201811041900A CN 109049855 A CN109049855 A CN 109049855A
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- Prior art keywords
- infolding
- long side
- rack
- doubling
- sticking patch
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- 230000007246 mechanism Effects 0.000 title claims abstract description 45
- 229920003023 plastic Polymers 0.000 title claims abstract description 43
- 239000004033 plastic Substances 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 title claims abstract description 30
- 238000007664 blowing Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000006052 feed supplement Substances 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 238000003825 pressing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000011282 treatment Methods 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
- B31B70/26—Folding sheets, blanks or webs
- B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
Landscapes
- Making Paper Articles (AREA)
Abstract
The invention discloses a kind of bottom long side infolding mechanisms of plastic three-dimensional bag webs material, including sticking patch doubling rack (60), total rack (9), equipped with long side infolding mechanism (63) on bottom in its sticking patch doubling rack, in the front of sticking patch doubling rack equipped with long side infolding mechanism (64) under bottom.Bottom scraps of paper feeding machine structure (61) is housed in the side of its sticking patch doubling rack (60), bottom short side doubling mechanism (62) is housed on the front part sides side of sticking patch doubling rack.The present invention can be sequentially completed the processing work of the bottoms doubling full-automatic moldings such as the bottom scraps of paper feed supplement of plastic three-dimensional bag webs material, short side doubling, upper long side infolding, lower long side infolding.Firmness and effective rapid shaping are bonded to reinforce it for subsequent bag making, and the side of being made bottom carries the plastic three-dimensional bag of the scraps of paper secretly, General Promotion speed, stability, the yield rate of stereoscopic bag bag making.
Description
Technical field
The present invention relates to package packing machinies, are specifically related to a kind of side bottom stereoscopic bag bag making system.
Background technique
Currently, nonwoven fabrics package bag develops various patterns sack: bag of blurting out, handbag, plastic bag, zippered bag, solid
Bag etc., has been high-speed automated production mostly.Also the patterns such as sticking patch stereoscopic bag are carried at the side of having bottom stereoscopic bag, square bottom secretly to polybag, but
Other than its handle, bottom hotly join as semi-automatic operation, other is all to fold and carry secretly by hand full sticking patch (mending hard paper) to make,
Working efficiency is low, human cost is high, and the Forming Quality of square bottom plastic three-dimensional bag cannot guarantee that.The more side of being not involved with bottom folder
The single side positioning of plastic three-dimensional bag with sticking patch hotly joins, two sides infolding, square bottom are opened, square bottom patch doubling (including
Bottom scraps of paper feed supplement, short side doubling, upper long side infolding, lower long side infolding), square bottom the full automatic treatments such as hotly join, affect vertical
The molding firmness and production efficiency of the especially square bottom plastic three-dimensional bag of body bag.
Summary of the invention
It is an object of the present invention to overcome the above mentioned deficiencies, and providing long on a kind of bottom of completion plastic three-dimensional bag webs material
The bottom long side infolding mechanism for the plastic three-dimensional bag webs material that side infolding, lower long side infolding automatic moulding are handled.
The purpose of the present invention is realized by following technical solution: the bottom long side infolding mechanism of plastic three-dimensional bag webs material,
Including sticking patch doubling rack, total rack, equipped with long side infolding mechanism on bottom in the sticking patch doubling rack, in the sticking patch
The front of doubling rack is equipped with long side infolding mechanism under bottom；Long side infolding mechanism on the bottom, including it is mounted in sticking patch doubling
Upper long side infolding in rack pushes power source, and long side infolding, which pushes, on this connects upper long side infolding mounting plate under power source,
Slide is pushed forward equipped with connected infolding under the two sides of the upper long side infolding mounting plate and infolding is pushed forward power source, in the infolding
It is pushed forward on slide and upper long side infolding power source is housed, filled between the upper long side infolding power source by infolding rotary drive component
There is upper long side infolding control panel.
Long side infolding mechanism under the bottom, including the lower long side infolding in sticking patch doubling frame front, total rack
Rack is equipped with lower long side infolding power source, the lower long side infolding power source and lower long side infolding in the lower long side infolding rack
Plate is connected, and lower long side air blowing component is housed in the lower long side infolding rack and in the side edge of lower long side infolding power source.?
The front part sides side of the sticking patch doubling rack is equipped with bottom short side doubling mechanism, the bottom short side doubling mechanism, including dress
Short side doubling rack under sticking patch doubling frame front, total rack, is provided in short side in the short side doubling rack and pushes
Power source, motive force source connects with short side doubling stringer board in the short side, and the traversing plate of short side doubling is housed on the short side doubling stringer board.
After applying the present invention, the bottom short side doubling of plastic three-dimensional bag webs material, upper length are sequentially completed by above-mentioned each mechanism
The bottoms doubling full-automatic moldings such as side infolding, lower long side infolding handle work.Firmness is bonded to reinforce it for subsequent bag making
With effective rapid shaping, the side of being made bottom carries the plastic three-dimensional bag of the scraps of paper, General Promotion speed, the stabilization of stereoscopic bag bag making secretly
Property, yield rate.
Detailed description of the invention
The present invention is described in further detail with embodiment with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of plastic three-dimensional bag automatic bag making system applied by the present invention.
Fig. 2 is mounting structure schematic diagram of the invention.
Fig. 3 is the structural schematic diagram of the bottom scraps of paper feeding machine structure in Fig. 2.
Fig. 4 be Fig. 2 in bottom on long side infolding mechanism structural schematic diagram.
Fig. 5 is the plastic three-dimensional bag flow chart of steps that side bottom made of the present invention carries sticking patch secretly.
Fig. 6 is the structural schematic diagram of the bottom device for opening in Fig. 1.
Specific embodiment
Referring to Fig.1, Fig. 2 it is found that plastic three-dimensional bag webs material of the present invention bottom long side infolding mechanism, including sticking patch rigging machine
Frame 60, total rack 9, equipped with long side infolding mechanism 63 on bottom in the sticking patch doubling rack 60, in the sticking patch rigging machine
The front of frame 60 is equipped with long side infolding mechanism 64 under bottom (between bottom short side doubling mechanism 62).In the sticking patch rigging machine
The side of frame 60 is equipped with bottom scraps of paper feeding machine structure 61, and bottom short side is housed on the front part sides side of the sticking patch doubling rack 60
Doubling mechanism 62.To constitute the bottom patch doubling-up device 6 of plastic three-dimensional bag webs material.
As shown in Figure 2 and Figure 3, the bottom scraps of paper feeding machine structure 61, including it is mounted in 60 side of sticking patch doubling rack, exchange
Swing arm frame 70 on frame 9 is equipped with oscillating deck 71 in the swing arm frame 70, and upper horizontal synchronization is housed on the top of the oscillating deck 71
Wheel 72, its underpart are equipped with lower horizontal synchronizing wheel 73, the oscillating deck 71 and lower horizontal synchronizing wheel 73 and swing power source 74 (for band
The oscillating motor of deceleration) it is connected, the upper horizontal synchronization wheel 72 passes through 75 phase of horizontal synchronization band with lower horizontal synchronizing wheel 73
Even；Suction plate 78, institute are equipped with by suction plate installation axle 76 (and suction plate bearing holder (housing, cover) 77) on the upper horizontal synchronization wheel 72
It states under suction plate 78 equipped with getter assembly 79 (containing vacuum noz(zle)).The side of the swing arm frame 70 and oscillating deck 71 is conveyed equipped with the scraps of paper
Mechanism 65.
When the plastic three-dimensional bag webs material for opening bottom is sent to sticking patch doubling rack 60 by the clamping of manipulator sheet stock transmission device 8
Afterwards, sack positioning pressuring plate cylinder drives sack positioning pressuring plate to push and determined the sack of this plastic three-dimensional bag and part bag body
Position.It swings the work of power source 74 and oscillating deck 71 is driven to make 180 degree swing, while horizontal synchronizing wheel 73, upper level are same under drive
Step wheel 72 is rotated with horizontal synchronization band 75, so that the rotation by suction plate installation axle makes suction plate under the swing of oscillating deck,
Guarantee that suction plate and getter assembly are in horizontality, is drawn to the scraps of paper level on scraps of paper conveying mechanism by getter assembly vertical
At the bottom opening of body bag webs material.
As shown in Fig. 2, the bottom short side doubling mechanism 62, including under 60 front of sticking patch doubling rack, total rack 9
Short side doubling rack 80 (be located at each one of left and right side), be provided with motive force source in short side in the short side doubling rack 80
81 (for push cylinder in short side), motive force source 81 and short side doubling stringer board 83 in the short side (can oscilaltion) connect, short at this
Short side doubling traversing plate 82 is housed on side doubling stringer board 83.Short side doubling stringer board 83 adjusts upper-lower height first, makes short side pair
The height and position of fold cross shifting plate and two sides of stereoscopic bag sheet stock are consistent to short side；Then, 81 work belt of motive force source in short side
Dynamic short side doubling stringer board 83 inwardly promotes, and the traversing plate of short side doubling also and then inwardly promotes, thus by stereoscopic bag sheet stock bottom
Two sides short side carries out doubling towards the bottom scraps of paper, and covers at this two sides in this base paper on piece.Bottom scraps of paper feeding machine at this time
The returned original position of suction plate and getter assembly of structure 61.
As shown in Figure 2, Figure 4 shows, long side infolding mechanism 63 on the bottom, including the upper long side in sticking patch doubling rack
Infolding pushes power source 90 (for upper long side infolding lower air cylinder), and long side infolding pushes in the upper long side of the lower connection of power source 90 on this
Mounting plate 91 is rolled over, before being pushed forward slide 92 and infolding equipped with connected infolding under the two sides of the upper long side infolding mounting plate 91
Motive force source 93 (for push cylinder before infolding) is pushed forward on slide 92 equipped with upper long side infolding power source 94 in the infolding (for upper length
Side infolding cylinder), by infolding rotary drive component equipped with the control of upper long side infolding between the upper long side infolding power source 94
Plate 95.Long side infolding mechanism 64 under the bottom, including in the lower long side in 60 front of sticking patch doubling rack, total rack 9
Rack 85 is rolled over, lower long side infolding power source 86 (for lower long side infolding cylinder) is housed in the lower long side infolding rack 85, under this
Long side infolding power source 86 is connected with folded plate 87 in lower long side, in the lower long side infolding rack 85 and dynamic in lower long side infolding
The side edge in power source 86 is equipped with lower long side air blowing component 88 (including gas blow pipe etc.).
The upper long side infolding power source 94 is lower to be connected by infolding rack gear 96 with infolding rotation gear 97, the upper long side
Infolding control panel 95 is between the infolding rotation gear shaft 98 in infolding rotation gear 97, the infolding rack gear 96, infolding
Rotate gear 97, infolding rotation gear shaft 98 constitutes infolding rotary drive component.On the side of the sticking patch doubling rack 60,
And sack positioning pressuring plate cylinder 66 is housed at the top of upper long side infolding control panel 95, connect under the sack positioning pressuring plate cylinder 66
Picking bag mouth positioning pressuring plate 67；Bag base pressure plate cylinder 68, this bag of base pressure plate are housed on the other side of the sticking patch doubling rack 60
The lower connecting bag bottom positioning pressuring plate 69 of cylinder 68, under the sticking patch doubling rack 60 and in the feed inlet of plastic three-dimensional bag webs material
Place is equipped with charging baffle 99.
After the plastic three-dimensional bag webs material for opening bottom is sent to below sticking patch doubling rack 60 and charging baffle 99, sack is fixed
Position pressing plate cylinder drives sack positioning pressuring plate to push, bag base pressure plate cylinder 68 drives bag bottom positioning pressuring plate 69 to push and by this plastics
The sack of stereoscopic bag, bag body, bag bottom are positioned；Upper long side infolding pushes the work of power source 90 and drives upper long side infolding mounting plate
91, make that infolding is pushed forward slide 92 and infolding is pushed forward that power source 93 is whole to be moved down in place, while infolding is pushed forward 93 work belt of power source
Dynamic infolding is pushed forward slide 92 (sliding on being pushed forward sliding rail) and upper long side infolding power source 94, upper long side infolding control panel 95 are pushed forward
In place；Then, the upper work of long side infolding power source 94 pulls up infolding rack gear 96, drives rotation infolding rotation gear 97 and infolding
It rotates gear shaft 98 and then to rotate, to drive upper long side infolding control panel 95 to rotate, by the bottom of this plastic three-dimensional bag webs material
Upper long side infolding and be pressed on its lateral short side and encase from above this bottom scraps of paper, then by bag base pressure plate cylinder 68 drive bag
Bottom positioning pressuring plate 69 carries out pushing fixation.Then, manipulator sheet stock transmission device 8 unclamps the lower length of the plastic three-dimensional bag bottom
Side, blow against the lower long side by lower long side air blowing component 88 leans against it in upper long side of plastic three-dimensional bag bottom,
It is worked again by lower long side infolding power source 86 and drives folded plate 87 in lower long side, cover the lower long side in the plastic three-dimensional bag bottom
Upper long side on, as shown in the sheet stock state f in Fig. 5.It is carried out to which the bottom for subsequent plastic three-dimensional bag webs material hotly joins
Adequate preparation.The bottom that bottom scalding device 7 carries out plastic three-dimensional bag webs material is just finally transported to by the manipulator of total rack side
Portion hotly joins processing, and the side of being made bottom carries the plastic three-dimensional bag of the scraps of paper secretly, as shown in the sheet stock state g in Fig. 5.
As shown in Figure 1, (square bottom entrainment sticking patch) plastic three-dimensional bag automatic bag making system applied by the present invention, described
Sticking patch doubling rack 60 is sequentially arranged with sheet stock slide positioning feed 1, reprint in the front of total rack 9 in total rack 9
Doubling-up device 2 is sequentially arranged with single side scalding device 3, two in total rack 9 and in the side edge of reprint doubling-up device 2
Device for folding 4, bottom device for opening 5 in side, to folding in total rack 9 and in sheet stock slide positioning feed, reprint
Set, single side scalding device, in two sides device for folding, bottom device for opening center equipped with manipulator sheet stock transmission device 8
(circulating type rotation)；Plastic three-dimensional bag webs material is sequentially arranged in total rack 9 and in the side edge of bottom device for opening 5
Bottom patch doubling-up device 6, bottom scalding device 7.The sheet stock slide positioning feed 1, reprint doubling-up device 2, single side
Device for folding 4, bottom device for opening 5, the bottom patch doubling-up device 6 of plastic three-dimensional bag webs material, bottom in scalding device 3, two sides
Portion's scalding device 7 is in successively "-" type horizontal arrangement in total rack 9, and the sheet stock slide positioning feed 1 is in forefront, institute
Bottom scalding device 7 is stated in rearmost part.
The bottom middle position that the manipulator sheet stock transmission device 8 carries out its lower layer to plastic three-dimensional bag webs material clamps,
The sheet stock is unclamped from the station that sheet stock slide positioning feed 1 is gradually sent to bottom patch doubling-up device 6.Described is anticipated
Position feeding device 1 carries out positioning charging to plastic three-dimensional bag webs material, as shown in the sheet stock state a in Fig. 5；The reprint is to folding
It sets 2 pairs of plastic three-dimensional bag webs material and carries out overturning doubling by benchmark axis of center line impression, so that the sheet stock be made to be formed in unilateral envelope
Close, upper layer and lower layer and another side (i.e. three sides) opening state, as shown in the sheet stock state b in Fig. 5；The single side hotly joins dress
Sheet stock single side after setting 3 completion reprint doublings hotly joins, as shown in the sheet stock state c in Fig. 5；Device for folding 4 in the two sides
It completes foldable type in the two sides of the sheet stock after single side hotly joins and is in both sides bellows pocket state (the i.e. infolding two sides of flat mouth bag
Like closed air port leaf, also known as organ poly-bag), as shown in the sheet stock state d in Fig. 5.
As shown in fig. 6, the bottom device for opening 5, (right side) side of the sticking patch doubling rack 60 is filled by total rack 9
There is bottom to open rack 50, the bottom open the front of rack 50 equipped with charging auxiliary mold plate 51 (its feed front it is high,
The back that discharges is low in by preceding lower ramp shaped then), on the two sides that rack 50 is opened in the bottom equipped with hinge sliding block 52 (for
Left and right side two pieces), one end (passing through take-up housing 53) and the sliding block transverse moving mechanism of the hinge sliding block 52 (share a set of) phase
Even, its other end and hinge lifting drive source 56 (for hinge lifting cylinder, two sets) is connected, hinge lifting drive source 56 and
Hinge bottom control mechanism is connected, equipped with a bottom hinge 57 on the hinge bottom control mechanism (two sets).
The sliding block transverse moving mechanism include it is connected it is traversing in push away Synchronous Transmission component 54 and traversing interior motive force source
55 (for traversing interior push cylinder) are connected.The take-up housing 53 is mounted in traversing and pushes away on Synchronous Transmission component 54.The hinge bottom
Control mechanism includes the hinge seat 58 under hinge lifting drive source 56, equipped with bottom hinge power on the hinge seat 58
Source 59 (for a bottom hinge cylinder), this bottom hinge power source 59 is lower to be equipped with hinge rotated rack 17, the hinge rotated rack
17 are connected with hinge rotation gear 16, and described bottom hinge 57 fills the hinge rotary shaft 15 of (slotting) in hinge rotation gear 16
On.
Sack pressing plate lifting drive source 14 is housed (for sack pressing plate lifting air in the front that rack 50 is opened in the bottom
Cylinder), the rear part be equipped with bag base pressure plate lifting drive source 12 (for bag base pressure plate lifting cylinder), the sack pressing plate lifting drive source 14
Sack pressing plate 13 is housed down, this bag of base pressure plate lifting drive source 12 is lower to be equipped with bag base pressure plate 11.
Plastic three-dimensional bag webs material is opened after foldable type in two sides by the clamping of manipulator sheet stock transmission device 8 to bottom
The front of device 5 and by the inside of charging auxiliary mold plate 51, after the bottom of the sheet stock is in charging auxiliary mold plate 51
Side lower curtate, sheet stock oral area be in charging auxiliary mold plate 51 the high portion in front, to the sheet stock carry out integral forming and clamp to
Its bottom is in the side of a bottom hinge, then, sack pressing plate lifting drive source 14 drive sack pressing plate 13 to push and to the piece
The middle part of material positions；Then, the traversing interior motive force source 55 of sliding block transverse moving mechanism drives in traversing and pushes away Synchronous Transmission component
54 draw close hinge sliding block 52 and take-up housing 53 from two sides to middle part, and bottom hinge 57 is pushed and plugged by interior into this under merging phase
The side of sheet stock struts, and is pushed by 56 pairing page bottom control mechanism of hinge lifting drive source and the whole of bottom hinge,
And the bottom hinge power source 59 of hinge bottom control mechanism drives the pull-up of hinge rotated rack 17 that hinge is made to rotate gear 16
Rotation, then a bottom hinge 57 is opened by the rotation of hinge rotary shaft 15, finally the bottom of the sheet stock (containing two sides) is beaten
It opens in open state.As shown in the sheet stock state e in Fig. 5.It is driven under bag base pressure plate 11 by bag base pressure plate lifting drive source 12 again
Pressure carries out shaping the opening bottom of sheet stock.
Claims (5)
1. the bottom long side infolding mechanism of plastic three-dimensional bag webs material, including sticking patch doubling rack (60), total rack (9), feature
It is: equipped with long side infolding mechanism (63) on bottom on the sticking patch doubling rack (60), in the sticking patch doubling rack
(60) front is equipped with long side infolding mechanism (64) under bottom；Long side infolding mechanism (63) on the bottom, including it is mounted in sticking patch
Upper long side infolding in doubling rack pushes power source (90), and long side infolding, which pushes, on this connects under power source (90) in upper long side
Roll over mounting plate (91), under the two sides of the upper long side infolding mounting plate (91) equipped with connected infolding be pushed forward slide (92) with
Infolding is pushed forward power source (93), is pushed forward on slide (92) in the infolding equipped with upper long side infolding power source (94), the upper long side
Upper long side infolding control panel (95) is equipped with by infolding rotary drive component between infolding power source (94).
2. the bottom long side infolding mechanism of plastic three-dimensional bag webs material as described in claim 1, it is characterised in that: under the bottom
Long side infolding mechanism (64), including the lower long side infolding rack in sticking patch doubling rack (60) front, total rack (9)
(85), lower long side infolding power source (86), the lower long side infolding power source (86) are housed on the lower long side infolding rack (85)
It is connected with folded plate (87) in lower long side, on the lower long side infolding rack (85) and in the side of lower long side infolding power source (86)
Lower long side air blowing component (88) is housed at side.
3. the bottom long side infolding mechanism of plastic three-dimensional bag webs material as claimed in claim 1 or 2, it is characterised in that: described
The front part sides side of sticking patch doubling rack (60) is equipped with bottom short side doubling mechanism (62), the bottom short side doubling mechanism
(62), including the short side doubling rack (80) under sticking patch doubling rack (60) front, total rack (9), in the short side pair
Folding rack (80) is provided with motive force source (81) in short side, motive force source (81) and short side doubling stringer board (83) phase in the short side
It connects, the traversing plate of short side doubling (82) is housed on the short side doubling stringer board (83).
4. the bottom long side infolding mechanism of plastic three-dimensional bag webs material as claimed in claim 1 or 2, it is characterised in that: on described
It is connected by infolding rack gear (96) with infolding rotation gear (97) under long side infolding power source (94), the upper long side infolding control
Plate (95) is between infolding rotation gear shaft (98) in infolding rotation gear (97), the infolding rack gear (96), infolding
Rotate gear (97), infolding rotation gear shaft (98) constitutes infolding rotary drive component.
5. the bottom long side infolding mechanism of plastic three-dimensional bag webs material as claimed in claim 3, it is characterised in that: in the sticking patch
Sack positioning pressuring plate cylinder is housed on the side of doubling rack (60) and at the top of upper long side infolding control panel (95)
(66), sack positioning pressuring plate (67) are connected under the sack positioning pressuring plate cylinder (66)；In the another of the sticking patch doubling rack (60)
Bag base pressure plate cylinder (68), connecting bag bottom positioning pressuring plate (69) under this bag of base pressure plate cylinder (68), in the benefit are housed on side
Charging baffle (99) is housed under piece doubling rack (60) and at the feed inlet of plastic three-dimensional bag webs material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041900.5A CN109049855B (en) | 2018-08-30 | 2018-08-30 | Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041900.5A CN109049855B (en) | 2018-08-30 | 2018-08-30 | Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109049855A true CN109049855A (en) | 2018-12-21 |
| CN109049855B CN109049855B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811041900.5A Active CN109049855B (en) | 2018-08-30 | 2018-08-30 | Bottom long edge inward folding mechanism of plastic three-dimensional bag sheet |
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