CN113771423A - Composite processing technology of paper packaging bag - Google Patents
Composite processing technology of paper packaging bag Download PDFInfo
- Publication number
- CN113771423A CN113771423A CN202110851139.7A CN202110851139A CN113771423A CN 113771423 A CN113771423 A CN 113771423A CN 202110851139 A CN202110851139 A CN 202110851139A CN 113771423 A CN113771423 A CN 113771423A
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- Prior art keywords
- glue
- paper
- processing box
- roller
- plastic layer
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- 238000004806 packaging method and process Methods 0.000 title claims abstract description 28
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 115
- 239000004033 plastic Substances 0.000 claims abstract description 48
- 239000000853 adhesive Substances 0.000 claims abstract description 35
- 230000001070 adhesive effect Effects 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims description 29
- 239000002994 raw material Substances 0.000 claims description 23
- 238000007731 hot pressing Methods 0.000 claims description 14
- 238000010073 coating (rubber) Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000123 paper Substances 0.000 claims 15
- 239000011101 paper laminate Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 6
- 238000003892 spreading Methods 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 238000013329 compounding Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B31B70/04—Feeding sheets or blanks
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- 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
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
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- 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
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
- B31F5/04—Attaching together sheets, strips or webs; Reinforcing edges by exclusive use of adhesives
Abstract
The invention relates to the technical field of paper packaging bag processing, and discloses a composite processing technology of a paper packaging bag. According to the invention, the vertical rod is fixed on two sides in the processing box body, the movable rod is movably sleeved on the outer side of the vertical rod, the glue coating rollers are movably sleeved on the outer side of the movable rod, the first return springs are movably sleeved on the outer side of the vertical rod, the glue outlet holes are formed in the outer side of the glue coating rollers at equal intervals, when the raw paper enters between the two glue coating rollers, the first return springs on the two sides are compressed, the adhesive glue in the two glue coating rollers overflows from the inside of the glue outlet holes, the raw paper is coated with glue, when the raw paper moves between the two glue coating rollers, the first return springs on the two sides are reset to extrude the two glue coating rollers, so that the raw paper is fully extruded by the two glue coating rollers, the adhesive glue can be completely adhered to the outer side of the raw paper, and the effect of preventing incomplete adhesion of the subsequent raw paper and a plastic layer is achieved.
Description
Technical Field
The invention relates to the technical field of paper packaging bag processing, in particular to a composite processing technology of a paper packaging bag.
Background
The traditional packaging bag is made of plastic, and paper packaging is increasingly used along with the enhancement of environmental awareness of people so as to reduce the consumption of the plastic and protect the environment; however, the packaging performance of pure paper packaging is poor, such as no heat sealing performance, no bag formation, no large-scale mechanical production, poor oil stain resistance and the like, and partial functional plastic is required to be compounded with the pure paper packaging to solve the problem, so that the paper-plastic packaging bag is produced at the same time.
The paper-plastic packaging bag is also called a three-in-one composite paper bag and is formed by compounding a plastic layer and a paper layer, the plastic layer and the paper layer are usually formed by hot laminating and bonding molten plastic, the compounding procedure is a key for bonding and fixing the plastic layer and the paper layer in the process of generating the paper-plastic packaging bag, the problems that the adhesive cannot be completely smeared and is not uniformly coated, the adhesive is hardened due to long-time use and the like exist in the existing production process, the compounding effect is poor, and the quality of the paper-plastic packaging bag is influenced.
Disclosure of Invention
Aiming at the defects of the existing composite processing technology of the paper packaging bag in the background technology in the using process, the invention provides the composite processing technology of the paper packaging bag, which has the advantages of completely sticking an adhesive on the outer surface of raw paper and preventing the adhesive from hardening to cause uneven gluing, and solves the technical problems in the background technology.
The invention provides the following technical scheme: the utility model provides a compound processing technology of paper wrapping bag, is including processing box and dust removal roller, hot pressing roller, discharge roller and plastic layer feed inlet, the dust removal roller is located the left side of processing box inner chamber, the hot pressing roller is located the right side of processing box inner chamber, the plastic layer running roller is located the upper left side of hot pressing roller, the discharge roller is located the right side of hot pressing roller, the plastic layer feed inlet is located the top of processing box, the equal fixed mounting in both sides has the montant, two around the inner chamber of processing box is close to two movable rod, two have been cup jointed in the outside activity of montant two movable rod, the hole of glue has been cup jointed in the equal activity in outside of movable rod, the glue spreader has been seted up to the outside equidistance in hole of glue, two first reset spring has been cup jointed in the equal activity in outside of glue spreader, first reset spring is located the upper and lower both sides of two movable rod.
Preferably, the equal fixed mounting in both sides has the cavity pole about the inner chamber of processing box, the inner chamber fixed mounting of cavity pole has second reset spring, second reset spring's other end fixed mounting has the stripper bar, the other end fixed mounting of stripper bar has the scraper blade, the rubber roll laminating is all scribbled to the scraper blade.
Preferably, two the equal fixed mounting in rear side of glue spreader has into the rubber tube, the rear side of processing box is opened and is equipped with the spout, two it all passes through spout and processing box activity joint, two to advance the rubber tube the rear end that advances the rubber tube all runs through the rear side fixed mounting who processes the box has the piston cap.
Preferably, the number of dust removal roller and hot pressing roller is two, two the equal fixed mounting in inside of hot pressing roller has the heater strip, two the external diameter of hot pressing roller all is bigger than the external diameter of two dust removal rollers.
The composite processing technology of the paper packaging bag specifically comprises the following steps:
s1, firstly, placing raw paper in the processing box body from the left opening of the processing box body, enabling the raw paper to pass through two dust removing rollers, removing dust and impurities on the surface of the raw paper, enabling the raw paper after dust removal to pass through two glue outlet holes, simultaneously adding adhesive glue into the glue coating rollers from a glue inlet pipe, enabling the adhesive glue to overflow from the glue outlet holes, enabling the two glue coating rollers to extrude the raw paper through the reset action of an upper first reset spring and a lower first reset spring, and completely coating the adhesive glue on the outer surface of the raw paper;
s2, driving the two glue coating rollers to rotate when the raw paper passes between the two glue coating rollers, enabling the upper scraper blade and the lower scraper blade to be closely attached to the glue coating rollers due to extrusion forces of second reset springs on two sides, and enabling the scraper blades to scrape hardened adhesive on the outer surfaces of the glue coating rollers when the two glue coating rollers rotate, so as to prevent the raw paper from being influenced;
s3, finally, in the middle of two hot press rolls, the raw material paper after the rubber coating is placed in the processing box body from the plastic layer feed inlet simultaneously, so that the plastic layer passes through the plastic layer roller and is located between two glue spreader, then the hot press rolls are heated through heating wires, so that the raw material paper is bonded with the plastic layer, the plastic layer is bonded with the raw material paper better, and the paper packaging bag finished by final bonding is discharged from the discharge port through the discharge roller.
The invention has the following beneficial effects:
1. according to the invention, the vertical rod is fixed on two sides in the processing box body, the movable rod is movably sleeved on the outer side of the vertical rod, the glue coating rollers are movably sleeved on the outer side of the movable rod, the first return springs are movably sleeved on the outer side of the vertical rod, the glue outlet holes are formed in the outer side of the glue coating rollers at equal intervals, when the raw paper enters between the two glue coating rollers, the first return springs on the two sides are compressed, the adhesive glue in the two glue coating rollers overflows from the inside of the glue outlet holes, the raw paper is coated with glue, when the raw paper moves between the two glue coating rollers, the first return springs on the two sides are reset to extrude the two glue coating rollers, so that the raw paper is fully extruded by the two glue coating rollers, the adhesive glue can be completely adhered to the outer side of the raw paper, and the effect of preventing incomplete adhesion of the subsequent raw paper and a plastic layer is achieved.
2. According to the invention, the hollow rods are fixed on the upper side and the lower side of the inner cavity of the processing box body, the second return spring is fixed in the inner cavity of the hollow rod, the extrusion rod is fixed at one end of the second return spring and movably sleeved with the hollow rod, the scraper is fixed at one end of the extrusion rod and is in contact with the glue spreader, when raw paper passes through the space between the two glue spreaders, the two glue spreaders are rotated, and meanwhile, the two scrapers can scrape adhesive glue on the outer surfaces of the two glue spreaders, so that the adhesive is prevented from being hardened to cause uneven glue spreading, and the effect of preventing the adhesive from being hardened due to long-time use is achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of a processing box according to the present invention;
FIG. 2 is a schematic view of the rear surface structure of the processing box of the present invention;
FIG. 3 is an enlarged view of the glue roll of the present invention;
FIG. 4 is a schematic cross-sectional view of a hot press roll according to the present invention;
FIG. 5 is an enlarged view of the structure at A in FIG. 2 according to the present invention.
In the figure: 1. processing the box body; 2. a hollow shaft; 3. a squeegee; 4. a plastic layer feed inlet; 5. a plastic layer roller; 6. a hot press roll; 7. glue spreading roller; 8. a discharging roller; 9. feeding a rubber tube; 10. a glue outlet hole; 11. an extrusion stem; 12. a movable rod; 13. a vertical rod; 14. a dust removal roller; 15. a first return spring; 16. a chute; 17. a second return spring; 18. heating wires; 19. a piston cap.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a composite processing technology of a paper packaging bag comprises a processing box body 1, a dust removing roller 14, a hot pressing roller 6, a discharging roller 8 and a plastic layer feeding port 4, wherein the dust removing roller 14 is positioned at the left side of an inner cavity of the processing box body 1, the hot pressing roller 6 is positioned at the right side of the inner cavity of the processing box body 1, the plastic layer roller 5 is positioned at the upper left side of the hot pressing roller 6, the discharging roller 8 is positioned at the right side of the hot pressing roller 6, the plastic layer feeding port 4 is positioned at the top of the processing box body 1, vertical rods 13 are fixedly arranged at the front side and the rear side of the inner cavity of the processing box body 1, two movable rods 12 are movably sleeved at the outer sides of the two vertical rods 13, glue outlet holes 10 are movably sleeved at the outer sides of the two movable rods 12, glue spreading rollers 7 are equidistantly arranged at the outer sides of the glue outlet holes 10, first reset springs 15 are movably sleeved at the outer sides of the two glue spreading rollers 7, the first reset springs 15 are positioned at the upper side and the lower side of the two movable rods 12, when the raw material paper entered into between two glue spreader 7, the first reset spring 15 of both sides was compressed this moment, the inside adhesive glue of two glue spreader 7 spills over from the inside of going out gluey hole 10, and carry out the rubber coating to the raw material paper, when the raw material paper moved between two glue spreader 7, the first reset spring 15 of both sides resets and extrudes two glue spreader 7, thereby two glue spreader 7 fully extrude the raw material paper, make the adhesive glue can glue the outside at the raw material paper completely, thereby reached and prevented follow-up raw material paper and plastic layer bonding incomplete effect.
Wherein, the equal fixed mounting in both sides has cavity pole 2 about the inner chamber of processing box 1, the inner chamber fixed mounting of cavity pole 2 has second reset spring 17, the other end fixed mounting of second reset spring 17 has squeeze stem 11, the other end fixed mounting of squeeze stem 11 has scraper blade 3, scraper blade 3 all scribbles the laminating of rubber roll 7, when the stock paper passes through between two rubber roll 7, make two rubber roll 7 rotate, two scraper blade 3 can scrape the adhesive cement on two rubber roll 7 surfaces simultaneously, in order to prevent that the adhesive hardening and lead to inhomogeneous rubber coating, thereby reached and prevented to use the effect that leads to the adhesive hardening for a long time.
Wherein, the equal fixed mounting in rear side of two glue spreader 7 has into rubber tube 9, the rear side of processing box 1 is opened and is equipped with spout 16, two are advanced rubber tube 9 and are all through spout 16 and processing box 1 activity joint, two rear sides fixed mounting that advance rubber tube 9 all run through processing box 1 have piston cap 19, install into rubber tube 9 through the rear side of installation glue spreader 7, thereby after the inside adhesive of glue spreader 7 makes use up, the accessible advances rubber tube 9 and adds the inside of glue spreader 7 again with the adhesive, thereby guarantee that the inside adhesive of glue spreader 7 is sufficient, make follow-up rubber coating work ability accomplish smoothly.
Wherein, the quantity of dust removal roller 14 and hot press roller 6 is two, the equal fixed mounting in inside of two hot press rollers 6 has heater strip 18, the external diameter of two hot press rollers 6 is all bigger than the external diameter of two dust removal rollers 14, through installing two dust removal rollers 14, when raw materials paper enters into the inside of processing box 1, raw materials paper process between two dust removal rollers 14 this moment to remove dust to the surface of raw materials paper, thereby it is inhomogeneous to lead to the rubber coating because there is the dust on the raw materials paper during the rubber coating to avoid.
The composite processing technology of the paper packaging bag specifically comprises the following steps:
s1, firstly, placing raw paper in the processing box 1 from the left opening of the processing box 1, simultaneously passing the raw paper between two dust removing rollers 14, removing dust and impurities on the surface of the raw paper, then passing the raw paper with the dust removed between two glue outlet holes 10, simultaneously adding adhesive glue into the glue spreader 7 from a glue inlet pipe 9, then overflowing the adhesive glue from the glue outlet holes 10, and enabling the two glue spreader 7 to extrude the raw paper through the reset action of an upper first reset spring 15 and a lower first reset spring 15, and at the moment, completely smearing the adhesive glue on the outer surface of the raw paper;
s2, driving the two glue coating rollers 7 to rotate when the raw paper passes between the two glue coating rollers 7, enabling the upper scraper blade 3 and the lower scraper blade 3 to be tightly attached to the glue coating rollers 7 due to extrusion forces of the second return springs 17 on the two sides, and enabling the scraper blades 3 to scrape hardened adhesive on the outer surfaces of the glue coating rollers 7 when the two glue coating rollers 7 rotate, so as to prevent the raw paper from being influenced;
s3, finally, the raw material paper after the rubber coating is in the middle of two hot press rolls 6, place the inside at processing box 1 with the plastic layer from plastic layer feed inlet 4 simultaneously, make the plastic layer pass through the plastic layer running roller 5 and lie in between two glue spreader 7, then heat hot press roll 6 through heater strip 18, make raw material paper and plastic layer bond, thereby it is fixed to make the plastic layer laminate better with raw material paper, the paper packaging bag that the final bonding is accomplished is discharged from the discharge gate through discharge roller 8.
The using method of the invention has the following working principle:
firstly, raw paper is placed in the processing box body 1 from the left opening of the processing box body 1, meanwhile, the raw paper passes between the two dust removing rollers 14 and removes dust and impurities on the surface of the raw paper, then the raw paper with the dust removed passes between the two glue outlet holes 10, adhesive glue is added into the glue spreader 7 from the glue inlet pipe 9, then the adhesive glue overflows from the glue outlet holes 10, the two glue spreader rollers 7 extrude the raw paper through the reset action of the upper and lower first reset springs 15, the adhesive glue is completely spread on the outer surface of the raw paper, secondly, the raw paper drives the two glue spreader 7 to rotate when passing between the two glue spreader rollers 7, at the moment, the upper and lower two scraping plates 3 are tightly pasted with the glue spreader 7 due to the extrusion force of the second reset springs 17 on the two sides, at the moment, the scraping plates 3 scrape the hardened adhesive glue on the outer surface of the glue spreader 7 when the two glue spreader 7 rotate, prevent to cause the influence to the raw materials paper, finally, the raw materials paper after the rubber coating is in the middle of two hot press rolls 6, place the plastic layer in the inside of processing box 1 from plastic layer feed inlet 4 simultaneously, make the plastic layer pass through plastic layer running roller 5 and lie in between two glue spreader 7, then heat hot press roll 6 through heater strip 18, make raw materials paper and plastic layer bond, thereby it is fixed to make the plastic layer laminate better with the raw materials paper, the paper wrapping bag that the final bonding was accomplished is discharged from the discharge gate through discharge roller 8.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a compound processing technology of paper packaging bag, is including processing box (1) and dust removal roller (14), hot press roller (6), discharge roller (8) and plastic layer feed inlet (4), dust removal roller (14) are located the left side of processing box (1) inner chamber, hot press roller (6) are located the right side of processing box (1) inner chamber, plastic layer running roller (5) are located the upper left side of hot press roller (6), discharge roller (8) are located the right side of hot press roller (6), plastic layer feed inlet (4) are located the top of processing box (1), its characterized in that: the equal fixed mounting in both sides has montant (13), two around the inner chamber of processing box (1) is close to two movable rod (12) have been cup jointed in the outside activity of montant (13), two go out gluey hole (10) has been cup jointed in the equal activity in outside of movable rod (12), go out the outside equidistance in gluey hole (10) and seted up glue spreader (7), two first reset spring (15) have been cup jointed in the equal activity in outside of glue spreader (7), first reset spring (15) are located the upper and lower both sides of two movable rod (12).
2. The composite processing technology of the paper packaging bag according to claim 1, characterized in that: the equal fixed mounting in both sides has cavity pole (2) about the inner chamber of processing box (1), the inner chamber fixed mounting of cavity pole (2) has second reset spring (17), the other end fixed mounting of second reset spring (17) has stripper bar (11), the other end fixed mounting of stripper bar (11) has scraper blade (3), rubber roll (7) laminating is all scribbled in scraper blade (3).
3. The composite processing technology of the paper packaging bag according to claim 1, characterized in that: two the equal fixed mounting in rear side of glue spreader (7) advances rubber tube (9), spout (16), two are opened to the rear side of processing box (1) advance rubber tube (9) and all pass through spout (16) and processing box (1) activity joint, two the rear side fixed mounting who advances rubber tube (9) all runs through processing box (1) has piston lid (19).
4. The composite processing technology of the paper packaging bag according to claim 1, characterized in that: the quantity of dust removal roller (14) and hot pressing roller (6) is two, two the equal fixed mounting in inside of hot pressing roller (6) has heater strip (18), two the external diameter of hot pressing roller (6) all is than the external diameter of two dust removal rollers (14) big.
5. The composite processing technology of the paper packaging bag specifically comprises the following steps:
s1, firstly, placing raw paper in the processing box body (1) from the left opening of the processing box body (1), simultaneously passing the raw paper between two dust removing rollers (14) and removing dust and impurities on the surface of the raw paper, then passing the raw paper with the dust removed between two glue outlet holes (10), simultaneously adding adhesive glue into the glue spreader (7) from a glue inlet pipe (9), then overflowing the adhesive glue from the glue outlet holes (10), and extruding the raw paper by the two glue spreader rollers (7) through the reset action of an upper first reset spring (15) and a lower first reset spring (15), wherein the adhesive glue is completely smeared on the outer surface of the raw paper;
s2, driving the two glue coating rollers (7) to rotate when the raw paper passes between the two glue coating rollers (7), wherein the upper scraper blade (3) and the lower scraper blade (3) are tightly attached to the glue coating rollers (7) due to the extrusion force of the second return springs (17) on the two sides, and the scraper blades (3) scrape hardened adhesive on the outer surfaces of the glue coating rollers (7) when the two glue coating rollers (7) rotate, so that the raw paper is prevented from being influenced;
s3, finally, the raw material paper after the rubber coating is in the middle of two hot press rolls (6), place the inside at processing box (1) with the plastic layer from plastic layer feed inlet (4) simultaneously, make the plastic layer pass through plastic layer running roller (5) and lie in between two glue spreader (7), then heat hot press roll (6) through heater strip (18), make raw material paper and plastic layer bond, thereby it is fixed to make plastic layer and raw material paper laminate better, the paper packaging bag that the bonding was accomplished at last is discharged from the discharge gate through ejection of compact roller (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110851139.7A CN113771423A (en) | 2021-07-27 | 2021-07-27 | Composite processing technology of paper packaging bag |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110851139.7A CN113771423A (en) | 2021-07-27 | 2021-07-27 | Composite processing technology of paper packaging bag |
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| CN113771423A true CN113771423A (en) | 2021-12-10 |
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| CN202110851139.7A Pending CN113771423A (en) | 2021-07-27 | 2021-07-27 | Composite processing technology of paper packaging bag |
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| CN115179604A (en) * | 2022-08-13 | 2022-10-14 | 河南裕宏新型环保包装有限公司 | Corrugated container board hot pressing rigging machine |
| CN115782311A (en) * | 2023-01-31 | 2023-03-14 | 常州市柯盛包装有限公司 | Paper product detection and transportation integrated system and working method thereof |
| CN115805165A (en) * | 2023-02-03 | 2023-03-17 | 山东熠阳工业技术有限公司 | Industrial automatic rubber coating device |
| CN116477133A (en) * | 2023-06-26 | 2023-07-25 | 安徽艺立恒科技有限公司 | Bamboo tableware equipment for packing |
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| CN115805165A (en) * | 2023-02-03 | 2023-03-17 | 山东熠阳工业技术有限公司 | Industrial automatic rubber coating device |
| CN116477133A (en) * | 2023-06-26 | 2023-07-25 | 安徽艺立恒科技有限公司 | Bamboo tableware equipment for packing |
| CN116477133B (en) * | 2023-06-26 | 2024-03-15 | 安徽艺立恒科技有限公司 | Bamboo tableware equipment for packing |
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Application publication date: 20211210 |
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