CN103240917A - Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags - Google Patents
Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags Download PDFInfo
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- CN103240917A CN103240917A CN2013101813245A CN201310181324A CN103240917A CN 103240917 A CN103240917 A CN 103240917A CN 2013101813245 A CN2013101813245 A CN 2013101813245A CN 201310181324 A CN201310181324 A CN 201310181324A CN 103240917 A CN103240917 A CN 103240917A
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- roller
- press fit
- bag
- negative pressure
- pressure transferring
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- 238000003466 welding Methods 0.000 title claims abstract description 38
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 239000000839 emulsion Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 4
- 239000004033 plastic Substances 0.000 abstract description 10
- 229920003023 plastic Polymers 0.000 abstract description 10
- 230000007246 mechanism Effects 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007757 hot melt coating Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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- Package Closures (AREA)
- Making Paper Articles (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention provides a hot-gas welding press fit device suitable for valve strips or bag bottom covering sheets of woven plastic block bottom valve bags. The hot-gas welding press fit device is low in pressure and capable of achieving short stroke clutching. The hot-gas welding press fit device comprises a lower press fit roller corresponding to a negative-pressure transferring roller, a gap formed between the lower press fit roller and the negative-pressure transferring roller corresponds to a gap set on a rack flat pallet, the tangent of the lower press fit roller and the rack flat pallet are on the same horizontal line, and cylindrical bag sheets and valve strips or covering sheets pass through the gap; and the lower press fit roller implements clutch pressing actions with the negative-pressure transferring roller through a pair of four-bar mechanisms with cylinders serving as executive components.
Description
Technical field
The present invention relates to package packing machine, especially be used for the press fit device of bag end emulsion sheet hot blast welding in the Bag Making Machine of the side's of relating to bottom valve pocket.
Background technology
The square bottom valve pocket that adopts the composite braided tube of plastics cloth to make, hexagon is opened, is folded into to its making step at first, to tubular sheet material two ends as shown in Figure 1.Symmetrical Delta Region is referred to as " cornerite " or " angle flap " in the hexagon, and laterally zygomorphic rectangle part in the hexagon is referred to as " the cross break wing "; The cut-off rule of hexagon intermediate rectangular part is referred to as " the folding center line in the bag end ".Secondly, at an end of tubular, need to paste the valve port bar; Then, the two cross break wings fold center line respectively at the bottom of bag, and cross folding, and a little overlap joint in opposite directions forms at the bottom of rectangular bag; At last, at the bottom of bag, paste the rectangle emulsion sheet, at the bottom of the closing bag or sack.
In the background technology of German patent DE 3236770 " valve port bag ", disclosed the bonding last layer sealant of polypropylene film narrow fabrics, after the employing Corona Surface Treatment, can be by the method for hot melt coatings welding, bonding pack valve port bar and bag end emulsion sheet are so that reliably at the bottom of the sealing bag.
" the packing technique handbook of being write nineteen eighty-three by Japanese Packaging Technology Association of China's China Machine Press translation issuing, disclosed plastic sheeting side's bottom valve pocket machine that Hull Baker Co., Ltd produces, use the AD Bag Making Machine of adhesive different with Germany temperature Weidmulie, adopted the bag technology of heat-sealing welding to paste valve port and the bag end covers a reinforced sheet.Its hot sealing process specifically should be hot plate welding; Composite plastic woven cloth with face coat is exactly a kind of multi-layer compound film material.
The PCT patent WO95/30598 of Starlinger company, Chinese patent CN10771258C of the same clan " polymer, especially polyolefine fabric bag and manufacture method thereof " discloses a kind of employing hot air, it is the method that the hot blast welding is used at the bottom of the square bottom valve pocket bag and emulsion sheet overlaps, adopt the pair roller pressing, but do not relate to concrete welding press device.
The invention people makes the device of plastic knitting tube bag continuously for the US Patent No. 3951050 " tube bag forming technology " of E.I.Du Pont Company more early discloses the welding of employing hot blast.Its welding press device comprises: a pair of diameter is 4 inches folder rod, and lower compression roller is resistant to elevated temperatures silica gel roller, and last pressure roller is the steel rider that the surface knurling of cylinder pushing is handled, and two roller peripheral pressure minimums are 20 pounds/square inch; At least one heat gun, nozzle is aimed at the crack that is formed by composite plastic woven sheet cloth cross folding zone and sealing strip with the angle of 15 degree.The technological means that above-mentioned patent is disclosed; details is very detailed; be identical with a technical problem role of welding for solution party's bottom valve pocket valve port bar and bag end emulsion sheet in the Chinese patent CN10771258C invention required for protection, and belong to same technical field.
The hot blast welding is the known technology of this area, and above-mentioned technological means is widely used in the overlap joint of this area composite plastic woven tarpaulin, and welding press generally adopts the mode of pair roller pressing to carry out.
The disclosed hot blast welding press of US Patent No. 3951050 " tube bag forming technology " is a kind of mode of working continuously.German patent DE 19502255.6 " being used for plastic paper strip seal is overlayed device on the workpiece of placing on the plane " then provides a kind of device that can be used for emulsion sheet welding at the bottom of the valve port bag bag of clearance-type operating type, by a control valve is installed before the heat gun nozzle, to cooperate common coiled material feed mechanism in the package packing machine, comprise the welding press device of hobboing cutter cutting, negative pressure roller absorption transmission, pair roller pressing.
The stickup of the valve port bar of side's bottom valve pocket, bag end emulsion sheet, its technological requirement is similar with coiled material location decals, can regard the location decals of packaging bag as.As association area can reference prior art, adopt the technological means that clearance-types are carried and hot blast welds to be close as US Patent No. 4724029 " the flexiplast label is applied to the method and apparatus on the bulge " and above-mentioned German patent DE 19502255.6.What be different from general plastic label hot blast barbola work is, the welding at the bag end of moulding the bag end emulsion sheet of volume side's bottom valve pocket and being folded into is that paste a large-area location, as shown in Figure 1, its cover strip width is between 80～180 millimeters, length sticks on the localized area between 230～480 millimeters; What also be different from general plastic label hot blast barbola work is, the welding at the bag end of moulding valve port bar, the bag end emulsion sheet of volume side's bottom valve pocket and being folded into is that the pressing that a kind of multilayer material carries out is simultaneously pasted, when requiring pressing pair roller linear resonance surface velocity to be consistent, must consider the deformation factor of being heated around the thermoplastic plastic substrates welding region; As after welding the valve port bar, bag end regional area polymer molecule disorientation, the local generation of base cloth shunk, and when the bag sheet travelled forward, the bag face easily produced wrinkle; This also just means, after the welding of valve port sheet was finished, press bonding roller needed to discharge in time, other not transmission of welding region at the bottom of can not influencing bag.
In addition, owing to bag is folding the shaping end, cause the welding region number of plies, thickness distribution inhomogeneous.Flap place, valve port angle is 7 layers, and sack reaches 4 layers near the cross break pterion part of bag inboard, and the cross break pterion in the outside is 2 layers, and the mutual lap-joint of the cross break wing is 5 layers, according to 80 grams/square metre base material calculate, thickness difference reaches 0.50 millimeter; The elastic modelling quantity on pressing rubber roll surface is uniform relatively, as applies excessive pressure, can cause the folding line of inboard horizontal flank upset place dark excessively, causes the loss of the warp tensile strength of bag base cloth; With respect to the folding trace of the horizontal flank in the outside at the bottom of the bag, the inboard cross break wing of sack becomes the stress concentration point of sack.The existence of tension test and can fall-down test susceptible of proof the problems referred to above.And above-mentioned prior art does not all provide effective solution.
Summary of the invention
The technical problem that will solve required for the present invention is: but the clutch of a kind of little pressure short stroke is provided, be suitable for moulding the welding press device that volume side's bottom valve pocket valve port bar and bag end emulsion sheet adopt the hot blast welding method, avoid the folding line of bag face fold or upset place of the inboard horizontal flank of bag to cross dark and influence the bag quality.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of welding press device for square bottom valve pocket valve port bar or the welding of bag end emulsion sheet hot blast, and this device comprises:
Tube bag piece conveying device on landing slab that is arranged on frame;
Be installed in the landing slab top, vertical with the tube bag sheet direction of motion, the coiled material feeder that the pole bracket formula is fixing;
Described coiled material feeder comprises a pair of conveying nip rolls, the cutter sweep that upper and lower rotation hobboing cutter is formed, and negative pressure transferring roller;
One and the corresponding following press bonding roller that arranges of negative pressure transferring roller, the negative pressure transferring roller is driven by pitch wheel respectively with following press bonding roller and keeps the roller surface linear velocity consistent, and tube bag sheet and valve port bar or emulsion sheet pass through between negative pressure transferring roller and following press bonding roller;
The nozzle of a heat gun is by certain angle, facing to negative pressure transferring roller and the formed V-shaped part of following press bonding roller;
It is characterized in that: form the gap between described down press bonding roller and the negative pressure transferring roller, this gap is corresponding in the gap set on landing slab, and with the landing slab level;
Following press bonding roller by a pair of be that the quadric chain of executive component and negative pressure transferring roller are realized clutch pressing action with the cylinder;
Described quadric chain comprises cylinder, clutch pendulum plate, connecting rod and eccentric bushing, and described eccentric bushing is installed in down on the rotatable axle of press bonding roller, and is connected with frame by the eccentric bushing positioning rotating shaft; One end of described clutch pendulum plate and the piston rod of cylinder are rotationally connected, and the other end is connected with frame by clutch pendulum plate positioning rotating shaft; Simultaneously, described connecting rod is rotationally connected with eccentric bushing and clutch pendulum plate respectively.
Described connecting rod comprises respectively and revolves left connecting rod and the right connecting rod that the threaded adjusting screw rod is connected with about one, revolves the threaded adjusting screw rod about rotation, the entire length of adjustable link, thus adjust gap between negative pressure transferring roller and the following press bonding roller.
The present invention is by arranging a quadric chain, realized little stroke clutch pressing quick, instant between time press bonding roller and the negative pressure transferring roller easily, solve location welding and finished back bag piece and carry folding line wrinkling, upset place of the inboard horizontal flank of sack to cross problems such as dark, guaranteed the quality of finished bag.
Description of drawings
Fig. 1 is that the square bottom valve pocket valve port bar that the present invention relates to is pasted schematic diagram with the location of bag end emulsion sheet;
Fig. 2 is the structural representation of apparatus of the present invention.
Among the figure: 1. coiled material; 2. conveying nip rolls; 3. go up hobboing cutter; 4. play hobboing cutter; 5. negative pressure transferring roller; 6. descend press bonding roller; 7. driven wheel I; 8. driven wheel II; 9. tube bag sheet; 10. eccentric bushing; 11. left connecting rod; 12. about revolve the threaded adjusting screw rod; 13. clutch pendulum plate; 14. cylinder; 15. cylinder piston connecting rod; 16. right connecting rod; 17. eccentric bushing positioning rotating shaft; 18. clutch pendulum plate positioning rotating shaft; 19. heat gun; 20. landing slab.
The specific embodiment
As shown in Figure 2, conveying device (not drawing among the figure) beat-type transport tube bag sheet 9 on the landing slab 20 of frame (not drawing among the figure);
Be installed in landing slab 20 tops, vertical with the direction of motion of tube bag sheet 9, the pole bracket formula is fixed a coiled material feeder; This coiled material feeder comprises a pair of conveying nip rolls 2, and goes up the cutter sweep of rotation hobboing cutter 3 and backspin tumbler cutter 4 compositions;
Secondly, form the welding press device by negative pressure transferring roller 5 and following press bonding roller 6, be installed in the gap set on the landing slab 20, the tangent line of the gap location that it is corresponding and landing slab 20 roughly are in same horizontal line, and the valve port bar that tube bag sheet 9 and coiled material 1 cut into or bag end emulsion sheet are from this gap location process;
Negative pressure transferring roller 5 and following press bonding roller 6 are driven by driven wheel I 7 and driven wheel II 8 respectively, and keep the roller surface linear velocity of negative pressure transferring roller 5 and following press bonding roller 6 consistent;
The nozzle of heat gun 19 is by certain angle, facing to negative pressure transferring roller 5 and following press bonding roller 6 formed V-shaped parts;
Following press bonding roller 6 by a pair of be that the quadric chain of executive component and negative pressure transferring roller 5 realize that clutches press work with cylinder 14;
Above-mentioned quadric chain is symmetrical arranged at the following both ends of press bonding roller 6, it comprise cylinder 14, clutch pendulum plate 13, about revolve threaded adjusting screw rod 12, left connecting rod 11, right connecting rod 16 and be installed in down eccentric bushing 10 on 6 of the press bonding rollers; In this quadric chain: eccentric bushing 10 is installed in down on the press bonding roller 6 rotatable axles, and is rotationally connected by eccentric bushing positioning rotating shaft 17 and frame, and the bottom of eccentric bushing 10 and left connecting rod 11 are rotationally connected;
Simultaneously, left connecting rod 11 and right connecting rod 16 respectively with about revolve threaded adjusting screw rod 12 and be threaded, make whole length of connecting rod adjustable;
Above-mentioned pneumatic four connecting rod clutch pressure mechanisms, can realize moment clutch pressing action: when cylinder piston rod 15 stretched out, following press bonding roller 6 was realized pressing to 5 motions of negative pressure transferring roller; During cylinder piston rod 15 withdrawal, namely realize the tripping of above-mentioned two rollers, thereby solved after the welding of emulsion sheet location finishes that a bag sheet base cloth is carried wrinkling problem, has guaranteed the presentation quality of finished bag.
Above-mentioned four connecting rod clutch pressure mechanisms, under the constant condition of cylinder piston stroke, by about revolve threaded adjusting screw rod 12, adjust the wherein length of adjustable-length connecting rod, in the engagement of the driven wheel that does not influence the welding press pair roller, do not change under the prerequisite of welding tube bag sheet line synchro speed, can adjust respectively the gap at the two ends between negative pressure transferring roller 5 and the following press bonding roller 6, avoided the folding line of inboard horizontal flank upset place of sack dark excessively, and the hidden danger of quality of the side's of causing bottom valve pocket.
Claims (2)
1. one kind is used for square bottom valve pocket valve port bar or bag welding press device that end emulsion sheet hot blast welds, and this device comprises:
A tube bag piece conveying device that is arranged on the framework platform;
Be installed in the framework platform top, vertical with the tube bag sheet direction of motion, the coiled material feeder that the pole bracket formula is fixing;
Described coiled material feeder comprises a pair of conveying nip rolls, the cutter sweep that upper and lower rotation hobboing cutter is formed, and negative pressure transferring roller;
One and the corresponding following press bonding roller that arranges of negative pressure transferring roller, the negative pressure transferring roller is driven by pitch wheel respectively with following press bonding roller and keeps the roller surface linear velocity consistent, and tube bag sheet and valve port bar or emulsion sheet pass through between negative pressure transferring roller and following press bonding roller; The nozzle of a heat gun is by certain angle, facing to negative pressure transferring roller and the formed V-shaped part of following press bonding roller;
It is characterized in that: form the gap between described down press bonding roller and the negative pressure transferring roller, this gap is corresponding in the gap set on the framework platform plate, and with the framework platform plate level;
Following press bonding roller by a pair of be that the quadric chain of executive component and negative pressure transferring roller are realized clutch pressing action with the cylinder;
Described quadric chain comprises cylinder, clutch pendulum plate, connecting rod and eccentric bushing, and described eccentric bushing is installed in down on the rotatable axle of press bonding roller, and is connected with frame by the eccentric bushing positioning rotating shaft; One end of described clutch pendulum plate and the piston rod of cylinder are rotationally connected, and the other end is connected with frame by clutch pendulum plate positioning rotating shaft; Simultaneously, described connecting rod is rotationally connected with eccentric bushing and clutch pendulum plate respectively.
2. welding press device according to claim 1 is characterized in that: described connecting rod comprises respectively and revolves left connecting rod and the right connecting rod that the threaded adjusting screw rod is connected with about one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310181324.5A CN103240917B (en) | 2013-05-15 | 2013-05-15 | Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310181324.5A CN103240917B (en) | 2013-05-15 | 2013-05-15 | Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103240917A true CN103240917A (en) | 2013-08-14 |
| CN103240917B CN103240917B (en) | 2015-04-22 |
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| CN201310181324.5A Active CN103240917B (en) | 2013-05-15 | 2013-05-15 | Hot-gas welding press fit device for valve strips or bag bottom covering sheets of block bottom valve bags |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364969A (en) * | 2016-08-26 | 2017-02-01 | 芜湖悠派护理用品科技股份有限公司 | Folding mechanism for pet urinal pad |
| CN106976615A (en) * | 2017-04-27 | 2017-07-25 | 重庆新派新智能科技有限公司 | The device of keyboard case laminating nameplate |
| CN109483894A (en) * | 2018-09-25 | 2019-03-19 | 岳阳东方雨虹防水技术有限责任公司 | Waterproof roll back hangs the welder and welding method of weldering rope |
| CN109624413A (en) * | 2019-01-31 | 2019-04-16 | 惠州市恺易宸包装材料有限公司 | A kind of roller heat pressing type inflation bag making machine |
| CN109849434A (en) * | 2019-01-31 | 2019-06-07 | 惠州市恺易宸包装材料有限公司 | A kind of hot pressing rolling mechanism for realizing continuous production air bag lines |
| CN113290943A (en) * | 2021-05-12 | 2021-08-24 | 邢蕊 | Equipment and process for sticking plastic seal of degradable plastic self-sealing bag |
| CN115697686A (en) * | 2020-05-11 | 2023-02-03 | 洛希亚有限公司 | Apparatus and method for opening the ends of tubular fabric articles to make square-bottomed bags |
Families Citing this family (1)
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| WO2018073285A1 (en) * | 2016-10-18 | 2018-04-26 | Windmöller & Hölscher Kg | Apparatus and method for producing bags from plastics material |
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| CN203305565U (en) * | 2013-05-15 | 2013-11-27 | 常州市恒成塑料机械有限公司 | Welding press-fit device used for hot-gas welding of square bottom valve port bag valve port strip or bag bottom covering piece |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364969A (en) * | 2016-08-26 | 2017-02-01 | 芜湖悠派护理用品科技股份有限公司 | Folding mechanism for pet urinal pad |
| CN106976615A (en) * | 2017-04-27 | 2017-07-25 | 重庆新派新智能科技有限公司 | The device of keyboard case laminating nameplate |
| CN106976615B (en) * | 2017-04-27 | 2018-11-16 | 重庆新派新智能科技有限公司 | The device of keyboard case fitting nameplate |
| CN109483894A (en) * | 2018-09-25 | 2019-03-19 | 岳阳东方雨虹防水技术有限责任公司 | Waterproof roll back hangs the welder and welding method of weldering rope |
| CN109483894B (en) * | 2018-09-25 | 2021-01-26 | 岳阳东方雨虹防水技术有限责任公司 | Welding device and welding method for back-hanging welding rope of waterproof coiled material |
| CN109624413A (en) * | 2019-01-31 | 2019-04-16 | 惠州市恺易宸包装材料有限公司 | A kind of roller heat pressing type inflation bag making machine |
| CN109849434A (en) * | 2019-01-31 | 2019-06-07 | 惠州市恺易宸包装材料有限公司 | A kind of hot pressing rolling mechanism for realizing continuous production air bag lines |
| CN109624413B (en) * | 2019-01-31 | 2023-12-22 | 惠州市恺易宸包装材料有限公司 | Roller hot-pressing type air bag making machine |
| CN109849434B (en) * | 2019-01-31 | 2023-12-22 | 惠州市恺易宸包装材料有限公司 | Realize hot pressing rolling mechanism of continuous preparation pneumatic bag line |
| CN115697686A (en) * | 2020-05-11 | 2023-02-03 | 洛希亚有限公司 | Apparatus and method for opening the ends of tubular fabric articles to make square-bottomed bags |
| CN113290943A (en) * | 2021-05-12 | 2021-08-24 | 邢蕊 | Equipment and process for sticking plastic seal of degradable plastic self-sealing bag |
| CN113290943B (en) * | 2021-05-12 | 2022-12-16 | 珠海市鼎胜胶粘塑料环保科技有限公司 | Equipment and process for sticking plastic seal of degradable plastic self-sealing bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103240917B (en) | 2015-04-22 |
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