CN106739182B - Three-layer preprinting corrugated board production line - Google Patents
Three-layer preprinting corrugated board production line Download PDFInfo
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- CN106739182B CN106739182B CN201611267464.4A CN201611267464A CN106739182B CN 106739182 B CN106739182 B CN 106739182B CN 201611267464 A CN201611267464 A CN 201611267464A CN 106739182 B CN106739182 B CN 106739182B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 59
- 238000004513 sizing Methods 0.000 claims abstract description 29
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 239000000123 paper Substances 0.000 claims description 229
- 239000010410 layer Substances 0.000 claims description 99
- 230000001815 facial effect Effects 0.000 claims description 48
- 238000010438 heat treatment Methods 0.000 claims description 18
- 239000002356 single layer Substances 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 210000003128 head Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000009955 starching Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 210000002489 tectorial membrane Anatomy 0.000 description 1
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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
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
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Abstract
The invention relates to a three-layer preprinting corrugated board production line which comprises a surface paper transmission path for transmitting outer surface paper, a pit paper transmission path for transmitting double-layer corrugated paper, a pasting machine for coating paste on the pit surfaces of the double-layer corrugated paper and a paste paper device for pressing the outer surface paper and the pit surfaces of the double-layer corrugated paper, wherein the pasting machine is arranged between the surface paper transmission path and the pit paper transmission path, the surface paper transmission path is positioned above the pit paper transmission path, the pasting machine comprises a sizing assembly and a paper guide path, the paper guide path is positioned at the lower part of the sizing assembly and is communicated with the pit paper transmission path, and the paste paper device is arranged behind the pasting machine. The outer surface (the surface printed with patterns or the surface printed with patterns) for conveying the outer surface paper faces upwards, so that the possibility of pressing the outer surface of the outer surface paper in the subsequent process is greatly reduced, the friction of the outer surface paper can be reduced, the outer surface paper is well protected, the abrasion of the outer surface paper is avoided, and the product quality is improved.
Description
Technical Field
The invention relates to a corrugated paper production line, in particular to a three-layer preprinted corrugated board production line.
Background
The existing three-layer preprinting corrugated board production line comprises a surface paper transmission path for transmitting outer surface paper, a pit paper transmission path for transmitting double-layer corrugated paper, a pasting machine for coating paste on the pit surface of the double-layer corrugated paper and a paste paper device for laminating the outer surface paper and the pit surface of the double-layer corrugated paper, wherein the pasting machine is arranged between the surface paper transmission path and the pit paper transmission path, and the surface paper transmission path is positioned below the pit paper transmission path. The general production flow is as follows: the double-layer corrugated paper is processed and formed by a corrugating machine, a pit paper transmission path is transmitted to a pasting machine after forming, when pit surfaces of the double-layer corrugated paper enter the pasting machine, the pit surfaces face downwards, paste is coated on the pit surfaces through a sizing assembly, then the pit surfaces are bonded with outer-layer face paper positioned below the pit surfaces through a pasting device, then three layers of corrugated paper are formed, and the outer-layer face paper is continuously transmitted in a state of being positioned at the lowest position. Because the patterns are printed on the outer surface of the outer layer paper, and the pattern surface is always in contact with a bearing and transmission device and the like, the patterns are easily abraded, and the quality of the paper is affected after the paper is finally processed into packing materials such as cartons and the like.
In addition, because the three-layer preprinting corrugated board production line developed by our company at present can have the synchronous printing function, but because the outer-layer facial tissue of the existing three-layer preprinting corrugated board production line travels below the hole paper transmission path, namely the printing surface of the outer-layer facial tissue faces downwards, the printing is not facilitated, and the drying of the printing ink is also not facilitated.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a three-layer preprinted corrugated board production line which reduces the abrasion influence on the outer surface of a corrugated board.
The purpose of the invention is realized as follows:
the utility model provides a three-layer preprinting corrugated board production line, is including the facial tissue transmission path who is used for conveying outer facial tissue, the pot head paper transmission path who is used for conveying double-deck corrugated paper, the pot head paper transmission path who brushes the paste machine of pasting of starching for the pot head of double-deck corrugated paper and the device of pasting with the pot head face pressfitting of outer facial tissue and double-deck corrugated paper, pastes and attaches the machine setting between facial tissue transmission path and pot head paper transmission path, characterized by, facial tissue transmission path is located pot head paper transmission path top, pastes the machine of attaching and includes starching assembly and paper guide path, paper guide path be located starching assembly lower part and with pot head paper transmission path intercommunication, paste the paper device setting and paste and attach the.
The aim of the invention can also be solved by the following technical measures:
as a more specific scheme, a deviation correcting machine is further arranged on the facial tissue conveying path and is positioned behind the paper pasting device. The position of the outer-layer surface paper can be corrected by additionally arranging the deviation correcting machine, and the position of the outer-layer surface paper is adjusted and then is bonded with the double-layer corrugated paper to form a three-layer corrugated board, so that the product quality is improved.
As a further scheme, an arc-shaped hot plate is further arranged on the facial tissue conveying path and is arranged between the deviation correcting machine and the paper pasting device in a swinging mode. Preferably, the arc-shaped hot plate is an electromagnetic heating arc-shaped hot plate. The arc-shaped hot plate is plate-shaped, the heating volume of the arc-shaped hot plate is smaller, more energy is saved compared with the heating of the whole hot cylinder body (hot cylinder body), the energy-saving effect is more obvious when the arc-shaped hot plate is transformed into electromagnetic heating, and the used energy is cleaner, so that enterprises can better meet the requirements of energy conservation and emission reduction. In addition, because different processes have different requirements on paste, if the outer-layer paper needs to be heated, the arc-shaped hot plate can be swung upwards, so that the outer-layer paper output by the deviation corrector is conveyed on the surface of the arc-shaped hot plate and is subjected to heat transfer with the arc-shaped hot plate; when heating is not required, the arc-shaped hot plate can be swung down.
A first base paper frame, a first tractor and an upper paper feeding frame are arranged on the facial tissue conveying path along the conveying direction of the outer-layer facial tissue, the first base paper frame is used for placing outer-layer facial tissue paper rolls, the outer-layer facial tissue is guided to the upper paper feeding frame through the first tractor, and a deviation corrector is positioned between the upper paper feeding frame and the paper pasting device; and a second tractor and a lower paper feeding frame are arranged on the pit paper transmission path along the conveying direction of the double-layer corrugated paper, and the lower paper feeding frame is positioned below the upper paper feeding frame.
As a further scheme, the three-layer preprinting corrugated board production line further comprises a single-layer overbridge tensioning mechanism, a reverse overbridge air suction tensioning mechanism and a two-layer hot cylinder, wherein the single-layer overbridge tensioning mechanism is arranged on the facial tissue transmission path and is positioned between the upper paper feeding frame and the two-layer hot cylinder, the reverse overbridge air suction tensioning mechanism is arranged on the pit paper transmission path and is positioned between the lower paper feeding frame and the two-layer hot cylinder, the two-layer hot cylinder is provided with an upper heating channel and a lower heating channel, and the upper heating channel and the lower heating channel are respectively communicated with the facial tissue transmission path and the pit paper transmission path; the deviation correcting machine and the pasting machine are both positioned between the two-layer hot cylinder and the paper pasting device.
As a further scheme, a friction roller which is in contact with the inner surface of the outer-layer facial tissue is arranged on the single-layer overpass tensioning mechanism. After the facial tissue transmission path is arranged above the pit tissue transmission path, the outer surface of the outer facial tissue (the surface printed with patterns) does not rub the friction roller due to the fact that the outer facial tissue is arranged oppositely to the prior art, and abrasion to the outer surface of the outer facial tissue is further avoided.
As a further scheme, a preprinting machine for printing the pattern layer on the outer surface of the outer-layer tissue is further arranged between the first stock paper frame and the first tractor, and the printing speed of the preprinting machine is synchronous with the conveying speed of the outer-layer tissue. If the prepress machine is not available, the outer-layer tissue paper roll with the patterns printed in advance can be placed on the first raw paper frame and led out through the first tractor. If the preprinting machine is arranged, the outer-layer tissue paper roll without patterns can be placed on the first raw paper frame, then printed by the preprinting machine and then drawn out by the first tractor. Because the outer surface of the outer layer facial tissue faces upwards, the printing is more favorable.
As a further scheme, three-layer preprinting corrugated board production line is still including the flute machine that is used for producing double-deck corrugated paper, double-deck corrugated paper includes inlayer facial tissue and core paper, the core paper is processed into corrugate back and is glued with inlayer facial tissue one side by the flute machine, the flute machine is equipped with facial tissue input and core paper input and double-deck corrugated paper output, the facial tissue input is equipped with the second former paper frame that is used for placing the inlayer facial tissue scroll outward and is used for carrying out the facial tissue hot cylinder that preheats to the inlayer facial tissue before getting into the facial tissue input, the core paper input is equipped with the third former paper frame that is used for placing the core paper scroll outward and is used for carrying out the core paper hot cylinder that preheats to the core paper before getting into the core paper input, double-deck corrugated paper output and hole paper transmission path intercommunication for the double. The rear part of the paper pasting device is also sequentially provided with a hot plate part, a cold plate part, a paper feeding driving control mechanism, a slitting machine, a transverse cutting machine and a paper board conveyor. As a complete three-layer preprinted corrugated board production line, the three base papers can be integrated into a three-layer corrugated board with a printing layer by matching with the components, and the three-layer corrugated board is cut into required requirements according to the final carton design requirements and is conveyed to a specified position.
The invention has the following beneficial effects:
(1) after the facial tissue transmission path is arranged above the corrugated paper transmission path, the outer surface (the surface printed with patterns or the surface printed with patterns) for transmitting the outer facial tissue faces upwards, so that the possibility of pressing the outer surface of the outer facial tissue in the subsequent process is greatly reduced, the friction of the outer facial tissue can be reduced, the outer facial tissue is well protected, the abrasion of the outer facial tissue is avoided, and the product quality is improved.
(2) Because the outer facial tissue handles the variety more, for example tectorial membrane, gluing, japanning etc. because the surface of outer facial tissue is up, therefore, all be comparatively easy to a series of operations, greatly reduced the cost of production, moreover, if above-mentioned operation involves using volatile material, the gas that volatilizes goes up, in view of above-mentioned structure, can be very conveniently with its recovery, make it reach the requirement of environmental protection.
Drawings
Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.
Fig. 2 is a partially enlarged structural diagram of the right end of fig. 1.
Fig. 3 is a schematic structural diagram of a right-end connector in fig. 1.
Fig. 4 is a schematic structural diagram of the connector at the right end of fig. 3.
Fig. 5 is a schematic structural diagram of fig. 1 with a preprinter added at the left end (dashed line frame).
Detailed Description
The invention is further described with reference to the following figures and examples:
referring to fig. 1 to 4, a three-ply pre-printed corrugated board production line includes a face paper conveying path for conveying outer face paper 5, a hole paper conveying path for conveying double-layer corrugated paper 4, a pasting machine 17 for pasting the holes of the double-layer corrugated paper 4, and a pasting device 18 for laminating the outer face paper 5 and the holes of the double-layer corrugated paper 4, wherein the pasting machine 17 is disposed between the face paper conveying path and the hole paper conveying path, the face paper conveying path is located above the hole paper conveying path, the pasting machine 17 includes a pasting assembly and a paper guide path, the paper guide path is located at the lower part of the pasting assembly and is communicated with the hole paper conveying path, and the pasting device 18 is disposed behind the pasting machine 17. The sizing assembly comprises a sizing tank 21, a sizing roller 34, a size control roller 33 and an adjusting mechanism 32, wherein the sizing roller 34 and the size control roller 33 are arranged on the sizing tank 21, the size control roller 33 is in transmission connection with the adjusting mechanism 32, and the distance between the size control roller 33 and the sizing roller 34 is adjusted through the adjusting mechanism 32. The outer side of the pulp groove 21 is extended from one side of the sizing roller 34, a plurality of paper guide rollers 20 are arranged on a paper guide path, and the paper guide rollers 20 guide the double-layer corrugated paper 4 to wind from the lower part of the sizing assembly to the position, where the sizing roller 34 extends out of the pulp groove 21, so that the pit surface of the double-layer corrugated paper 4 contacts with one side of the sizing roller 34 for sizing.
The facial tissue transmission path is also provided with a deviation correcting machine 8, the deviation correcting machine 8 is positioned behind the paper pasting device 18, and the deviation correcting machine 8 is arranged right above the pasting machine 17.
The facial tissue conveying path is also provided with an arc-shaped hot plate 9, and the arc-shaped hot plate 9 is arranged between the deviation rectifying machine 8 and the paper pasting device 18 in a swinging mode. The arc-shaped hot plate 9 is an electromagnetic heating arc-shaped hot plate 9.
A first raw paper frame 10, a first tractor 1 and an upper paper feeding frame 2 are arranged on the facial tissue transmission path along the conveying direction of the outer-layer facial tissue 5, the first raw paper frame 10 is used for placing a paper roll of the outer-layer facial tissue 5, the outer-layer facial tissue 5 is guided to the upper paper feeding frame 2 through the first tractor 1, and a deviation corrector 8 is positioned between the upper paper feeding frame 2 and the paper pasting device 18; and a second tractor 3 and a lower paper feeding rack 24 are arranged on the pit paper transmission path along the transmission direction of the double-layer corrugated paper 4, and the lower paper feeding rack 24 is positioned below the upper paper feeding rack 2.
The three-layer preprinting corrugated board production line further comprises a single-layer overbridge tensioning mechanism 6, a reverse overbridge air suction tensioning mechanism 19 and a two-layer hot cylinder 16, wherein the single-layer overbridge tensioning mechanism 6 is arranged on the facial tissue transmission path and is positioned between the upper paper feeding frame 2 and the two-layer hot cylinder 16, the reverse overbridge air suction tensioning mechanism 19 is arranged on the pit paper transmission path and is positioned between the lower paper feeding frame 24 and the two-layer hot cylinder 16, the two-layer hot cylinder 16 is provided with an upper heating channel and a lower heating channel, and the upper heating channel and the lower heating channel are respectively communicated with the facial tissue transmission path and the pit paper transmission path; the deviation rectifying machine 8 and the pasting machine 17 are both positioned between the two-layer hot cylinder 16 and the paper pasting device 18.
And the single-layer overpass tensioning mechanism 6 is provided with a friction roller 7 which is in contact with the inner surface of the outer-layer facial tissue 5.
As shown in fig. 5, a preprinting machine 31 for printing a pattern layer on the outer surface C of the outer-layer surface paper 5 is further provided between the first stock paper frame 10 and the first tractor 1, and the printing speed of the preprinting machine 31 is synchronized with the conveying speed of the outer-layer surface paper 5.
The three-layer preprinting corrugated board production line further comprises a corrugating machine 13 for producing double-layer corrugated paper 4, the double-layer corrugated paper 4 comprises inner-layer face paper 23 and core paper 22, the core paper 22 is processed into a corrugated shape by the corrugating machine 13 and then is bonded with one side of the inner-layer face paper 23, the corrugating machine 13 is provided with a face paper input end, a core paper input end and a double-layer corrugated paper output end, a second raw paper frame 11 for placing paper rolls of the inner-layer face paper 23 and a face paper hot cylinder 12 for preheating the inner-layer face paper 23 before entering the face paper input end are arranged outside the face paper input end, a third raw paper frame 15 for placing paper rolls of the core paper 22 and a core paper hot cylinder 14 for preheating the core paper 22 before entering the core paper input end are arranged outside the core paper input end, so that the double-layer corrugated paper 4 at the output end of the double-layer corrugated paper is led to the lower paper feeding rack 24 through the second tractor 3.
The rear part of the paper pasting device 18 is also sequentially provided with a hot plate part 25, a cold plate part 26, a paper feeding driving control mechanism 27, a slitting machine 28, a transverse cutting machine 29 and a paper plate conveyor 30.
Claims (3)
1. A three-layer pre-printed corrugated board production line comprises a surface paper transmission path for transmitting outer surface paper (5), a pit paper transmission path for transmitting double-layer corrugated paper (4), a pasting machine (17) for coating paste on pits of the double-layer corrugated paper (4) and a paste device (18) for pressing the outer surface paper (5) and the pits of the double-layer corrugated paper (4), wherein the pasting machine (17) is arranged between the surface paper transmission path and the pit paper transmission path, and is characterized in that the surface paper transmission path is arranged above the pit paper transmission path, the pasting machine (17) comprises a sizing assembly and a paper guide path, the paper guide path is arranged at the lower part of the sizing assembly and communicated with the pit paper transmission path, and the paste device (18) is arranged behind the pasting machine (17);
the sizing assembly comprises a sizing groove (21), a sizing roller (34), a size control roller (33) and an adjusting mechanism (32), the sizing roller (34) and the size control roller (33) are arranged on the sizing groove (21), the size control roller (33) is in transmission connection with the adjusting mechanism (32), and the distance between the size control roller (33) and the sizing roller (34) is adjusted through the adjusting mechanism (32); one side of the sizing roller (34) extends out of the outer side of the sizing groove (21), a plurality of paper guide rollers (20) are arranged on a paper guide path, and the paper guide rollers (20) guide the double-layer corrugated paper (4) to wind from the lower part of the sizing assembly to the position, extending out of the sizing groove (21), of the sizing roller (34), so that the pit surface of the double-layer corrugated paper (4) is in contact with one side of the sizing roller (34) for sizing;
a deviation correcting machine (8) is also arranged on the facial tissue transmission path, and the deviation correcting machine (8) is positioned behind the paper pasting device (18); the deviation correcting machine (8) is arranged right above the pasting machine (17);
a first raw paper frame (10), a first tractor (1) and an upper paper feeding frame (2) are arranged on the surface paper transmission path along the conveying direction of the outer surface paper (5), the first raw paper frame (10) is used for placing paper rolls of the outer surface paper (5), the outer surface paper (5) is guided to the upper paper feeding frame (2) through the first tractor (1), and a deviation corrector (8) is positioned between the upper paper feeding frame (2) and the paper pasting device (18); a second tractor (3) and a lower paper feeding frame (24) are arranged on the pit paper transmission path along the transmission direction of the double-layer corrugated paper (4), and the lower paper feeding frame (24) is positioned below the upper paper feeding frame (2);
the corrugated paper machine is characterized by further comprising a corrugating machine (13) used for producing double-layer corrugated paper (4), wherein the double-layer corrugated paper (4) comprises inner-layer paper (23) and core paper (22), the core paper (22) is processed into a corrugated shape by the corrugating machine (13) and then is bonded with one side of the inner-layer paper (23), the corrugating machine (13) is provided with a surface paper input end, a core paper input end and a double-layer corrugated paper output end, a second raw paper frame (11) used for placing paper rolls of the inner-layer paper (23) and a surface paper hot cylinder (12) used for preheating the inner-layer paper (23) before entering the surface paper input end are arranged outside the surface paper input end, a third raw paper frame (15) used for placing paper rolls of the core paper (22) and a core paper hot cylinder (14) used for preheating the core paper (22) before entering the core paper input end are, leading the double-layer corrugated paper (4) at the output end of the double-layer corrugated paper to a lower paper feeding rack (24) through a second tractor (3);
the facial tissue conveying path is also provided with an arc-shaped hot plate (9), and the arc-shaped hot plate (9) is arranged between the deviation corrector (8) and the paper pasting device (18) in a swinging mode;
the tissue paper cutting machine is characterized by further comprising a single-layer overpass tensioning mechanism (6), a reverse overpass air suction tensioning mechanism (19) and a two-layer hot cylinder (16), wherein the single-layer overpass tensioning mechanism (6) is arranged on the tissue paper transmission path and is positioned between the upper paper feeding frame (2) and the two-layer hot cylinder (16), the reverse overpass air suction tensioning mechanism (19) is arranged on the pitted paper transmission path and is positioned between the lower paper feeding frame (24) and the two-layer hot cylinder (16), the two-layer hot cylinder (16) is provided with an upper heating channel and a lower heating channel, and the upper heating channel and the lower heating channel are respectively communicated with the tissue paper transmission path and the pitted paper transmission path; the deviation correcting machine (8) and the pasting machine (17) are both positioned between the two-layer hot cylinder (16) and the paper pasting device (18);
the single-layer overpass tensioning mechanism (6) is provided with a friction roller (7) which is in contact with the inner surface of the outer-layer surface paper (5);
the rear part of the paper pasting device (18) is also sequentially provided with a hot plate part (25), a cold plate part (26), a paper feeding driving control mechanism (27), a slitting machine (28), a transverse cutting machine (29) and a paper plate conveyor (30).
2. A three-layer pre-printed corrugated cardboard production line according to claim 1, characterised in that said curved hotplate (9) is an electromagnetically heated curved hotplate (9).
3. A three-ply pre-printed corrugated cardboard line as claimed in claim 1, characterised in that a preprinter (31) for printing a design layer on the outer surface of the outer cover paper (5) is provided between the first stock holder (10) and the first tractor (1), the printing speed of the preprinter (31) being synchronized with the conveying speed of the outer cover paper (5).
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| CN201611267464.4A CN106739182B (en) | 2016-12-31 | 2016-12-31 | Three-layer preprinting corrugated board production line |
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| CN201611267464.4A CN106739182B (en) | 2016-12-31 | 2016-12-31 | Three-layer preprinting corrugated board production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109551826A (en) * | 2018-12-26 | 2019-04-02 | 佛山市富利包装机械有限公司 | All fronts wet end body paper alignment |
| CN109774250B (en) * | 2019-01-30 | 2020-12-08 | 广东万联精工科技有限公司 | Corrugated board production line with printing system |
| CN212636760U (en) * | 2020-07-04 | 2021-03-02 | 广东万联精工科技有限公司 | Low-loss environment-friendly preprinted paperboard face-up production line |
| CN112223852B (en) * | 2020-09-21 | 2022-06-24 | 杭州秉信环保包装有限公司 | Multilayer paperboard pre-embedding line process |
| CN112677571B (en) * | 2020-12-05 | 2022-08-19 | 东莞顺诚纸品有限公司 | Production equipment and production process of corrugated board |
| CN115320180A (en) * | 2022-08-15 | 2022-11-11 | 张卫鹏 | Novel three-layer corrugated board production equipment, three-layer corrugated board and production process thereof |
| CN115648726A (en) * | 2022-10-28 | 2023-01-31 | 王先会 | Face-up corrugated board production line adopting reverse gluing mode |
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Denomination of invention: Three layer pre printed corrugated cardboard production line Granted publication date: 20210420 Pledgee: Beijiao sub branch of Guangdong Shunde Rural Commercial Bank Co.,Ltd. Pledgor: GUANGDONG WANLIAN SEIKO TECHNOLOGY Co.,Ltd. Registration number: Y2024980001442 |
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