Production line and processing method for anti-toppling paper bags

Abstract

The invention relates to the technical field of full-automatic bag making, in particular to a production line and a processing method for anti-toppling paper bags. The production line comprises a feeding mechanism, a first traction mechanism, a deviation rectifying mechanism, an inner joint strip pasting mechanism, a handle pasting mechanism, a barrel forming mechanism, a second traction mechanism, a cutter mechanism, a snapping mechanism, a bottom pasting mechanism, a bag arranging mechanism and a sealing paste pasting mechanism which are sequentially arranged along the production line. The method comprises the following steps: conveying a rolled inner joint strip raw material into an inner joint strip pasting mechanism, cutting the rolled inner joint strip raw material into single inner joint strips, extruding and folding the single inner joint strips, and pasting the folded single inner joint strips on a paper bag according to the requirements, so that the production process of the paper bag is improved, and a fixed inner joint strip matched with a cup-shaped beverage is designed in the paper bag; the stability of the beverage in the transportation process can be obviously improved.

Description

Technical Field

[0001] The invention relates to the technical field of full-automatic bag making, and in particular to a production line and a processing method of an anti-dumping paper bag. Background Art

[0002] Products in existing take-out, shopping, commodity packaging, catering industry, supermarkets and other places need to be transported in paper bags during the packaging process. There are many types of paper bag packaging production equipment in the industry, and the general structural principles are basically the same. The roll paper needs to go through the steps of tube making, cutting, bottom pasting, and storage to make paper bags.

[0003] Industries with special needs for the transportation of goods, especially the catering industry, have higher requirements for the packaging and transportation of drinks or takeouts, especially cup-shaped drinks. During transportation or delivery by deliverymen, cup-shaped drinks are prone to the risk of tipping over and spilling due to the limitations of the existing paper bag structure, which not only brings inconvenience to consumers, but may also cause unnecessary troubles and losses to businesses.

[0004] At present, paper bag products that can prevent objects from dumping have appeared, but these products are mainly made by hand, cannot be mass-produced, and have very low production efficiency. Existing problems need to be solved urgently. Summary of the invention

[0005] Therefore, the present invention is made in view of the above problems. The present invention can solve the problem of pouring and spilling of cup-shaped beverages in a paper bag by producing a paper bag with a fixed inner sticker strip inside:

[0006] A production line for anti-dumping paper bags, the production line comprises: a feeding mechanism, a first traction mechanism, a deviation correction mechanism, an inner strip pasting mechanism, a handle pasting mechanism, a tube forming mechanism, a second traction mechanism, a cutter mechanism, a breaking mechanism, a bottom pasting mechanism, a bag sorting mechanism, and a sealing sticker pasting mechanism, which are sequentially arranged along the production line. The feeding mechanism, the first traction mechanism, the deviation correction mechanism, the handle pasting mechanism, the tube forming mechanism, the second traction mechanism, the cutter mechanism, the breaking mechanism, the bottom pasting mechanism, and the bag sorting mechanism in the production line are all existing technologies of bag making machines;

[0007] The inner strip pasting mechanism can complete the production and pasting of the inner strip. The rolled inner strip raw material is sent to the inner strip pasting mechanism through the feeding roller, and then cut into individual inner strips, and the individual inner strips are squeezed and folded to form an L-shaped structure. The folded individual inner strips are pasted on the paper bag according to the needs;

[0008] The sealing sticker pasting mechanism can complete the production and pasting of the sealing sticker. The sealing sticker is composed of the main paper and the release paper. The release paper and the main paper go to the same station, are glued together, crimped, die-cut and pressed, and then folded into a Z-shaped structure. The folded paper is cut into a single sealing sticker, and then the single sealing sticker is pasted on the paper bag according to the needs;

[0009] Preferably, the inner strip sticking mechanism includes: a feeding roller, a cutting device, a vacuum suction roller, a clamping device, and an extrusion and folding device. The vacuum suction roller arranged below the cutting device adsorbs the single inner strip, and an extrusion and folding roller is arranged on one side of the vacuum suction roller. The extrusion and folding roller extrude and folds the single inner strip. A clamping device is installed inside the vacuum suction roller, and the folded single inner strip is fixed by the clamping device.

[0010] Preferably, the extrusion and folding device includes: a roller and a chopping knife. The chopping knife in the extrusion and folding roller rotates with the roller, and the chopping knife is horizontally arranged on one side of the roller. The rotation of the chopping knife can penetrate into the groove on the vacuum suction roller, and extrude the single inner strip into an L-shaped structure in the groove. The chopping knife is made of flexible material.

[0011] Preferably, the clamping device includes: a rotating shaft, a clamping plate, a clamping claw, and a rotating tube. The rotating shaft is located inside the vacuum suction roller, and the clamping plate is installed on one side of the rotating shaft. The rotation of the rotating shaft on the clamping device will drive the clamping plate to move, so as to clamp the edge of the folded single inner strip. The rotating tube is sleeved on the rotating shaft, and a plurality of clamping claws are installed on the rotating tube. The rotation of the rotating tube will drive the clamping claws to move, so as to clamp the single inner strip as a whole.

[0012] Preferably, the paper bags of the production line have been glued in advance, and the production line for conveying paper bags is located at the bottom of the vacuum suction roller. When the clamping device releases a single inner strip, the inner strip will stick to the paper bag and be pressed and glued again through subsequent processes.

[0013] Preferably, when handles need to be installed on the paper bags, the handle sticking mechanism in the production line is used to produce the paper bag handles. When handles do not need to be installed on the paper bags, the handle sticking mechanism in the production line stops working and the paper bags with inner strips enter the subsequent tube-forming process.

[0014] Preferably, the sealing sticker sticking mechanism comprises: a second feeding roller, a crimping roller, a die-cutting roller, a pressing roller, a folding roller, a main paper pulling roller, a cutter, and an air suction roller. The second feeding roller, the crimping roller, the die-cutting roller, the pressing roller, the folding roller, and the main paper pulling roller are arranged adjacent to each other from left to right. One end of the main paper roll and the release paper roll pass through the second feeding roller respectively, and then are sequentially conveyed to the crimping roller, the die-cutting roller, the pressing roller, and the folding roller. The crimping roller performs crimping treatment on the paper, the die-cutting roller cuts the corners of the paper into rounded corners, the pressing roller performs lamination treatment on the main paper c and the release paper, the folding roller folds the paper bag into a Z-shaped structure, and then sends it to the cutter through the main paper pulling roller for cutting, completing the production of a single sealing sticker. The single sealing sticker is sucked by the air suction roller and sent to the next station;

[0015] Preferably, a segmented paper pulling roller and a storage roller may be additionally provided between the main paper pulling roller and the cutter. When the conveying speed of the segmented paper pulling roller is slow, the excess paper may be stored and discharged by the storage roller.

[0016] Preferably, a segmented paper pulling roller and a storage roller may be additionally provided between the main paper pulling roller and the cutter. When the conveying speed of the segmented paper pulling roller is slow, the excess paper may be stored and discharged by the storage roller.

[0017] A processing method of a production line for anti-dumping paper bags is as follows:

[0018] S1: The paper bag raw materials are transported on the production line through the feeding mechanism, traction mechanism 1 and correction mechanism;

[0019] S2: The inner strip is made by the inner strip sticking mechanism, and the vacuum suction roller rotates to the bottom to stick the inner strip to the paper bag;

[0020] S3: When a handle is required to be installed on the paper bag, the handle sticking mechanism in the production line is used to produce the paper bag handle. When a handle is not required to be installed on the paper bag, the handle sticking mechanism in the production line stops working, and the paper bag with the inner sticking strip is conveyed to the subsequent tube forming process.

[0021] S4: The paper bags with inner strips pass through the tube forming mechanism, the second traction mechanism, the cutting mechanism, the breaking mechanism, and the bottom pasting mechanism. The produced paper bags are basically formed and have a certain strength and can be used. They are then sorted and collected by the bag sorting mechanism.

[0022] S5: The sealing sticker is made by the sealing sticker sticking mechanism, and then the suction roller rotates to the bottom to stick the sealing sticker to the paper bag;

[0023] S6: After the seal is attached to the paper bag, it is transported to the end of the production line for collection and sorting.

[0024] Beneficial effects of the present invention:

[0025] 1. The present invention effectively overcomes the limitations of traditional manual anti-dumping paper bags, and significantly improves the production efficiency of anti-dumping paper bags by introducing automated paper bag production equipment and optimizing the production process;

[0026] 2. The present invention improves the production process of paper bags and designs a fixed inner strip inside the paper bag to meet the transportation needs of special items (especially cup-shaped drinks), which can significantly improve the stability of the items during transportation and effectively reduce the dumping and spilling of items caused by vehicle bumps or improper handling;

[0027] 3. While the present invention satisfies the requirement of fully automated production of anti-dumping paper bags, in the prior art, there is no machine specifically used for producing paper bag sealing stickers. The production line of the present invention can realize fully automated production of paper bag sealing stickers. Sealing stickers are arranged at the sealing portion of the paper bag, which can effectively prevent dust from entering the paper bag.

[0028] 4. The present invention not only meets the requirements of automated production of sealing stickers, but also improves the production process of sealing stickers and designs the sealing stickers into a unique Z-shaped structure. This design does not require the release paper of the sealing stickers to be torn off during pasting and use, and does not generate excess waste. Compared with the existing sealing stickers of paper bags, it is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is the front view of the whole production line process in the present invention.

[0030] Figure 2 It is a top view of the entire production line process in the present invention.

[0031] Figure 3 It is a front view of the paper bag in the present invention.

[0032] Figure 4 It is a front view of the inner strip sticking mechanism of the present invention.

[0033] Figure 5 It is a schematic diagram of the structure of the extrusion and folding roller in the present invention.

[0034] Figure 6 It is a schematic diagram of the structure of the vacuum suction roller in the present invention.

[0035] Figure 7 It is a schematic diagram of the structure of the clamping device in the present invention.

[0036] Figure 8 It is a front view of the sealing sticker mechanism in the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the sealing sticker of the present invention.

[0038] Fig.10It is a structural schematic diagram of a paper bag with a sealing sticker according to the present invention.

[0039] Description of reference numerals:

[0040] 1. Feeding mechanism; 2. Traction mechanism 1; 3. Correction mechanism; 4. Inner strip pasting mechanism; 41. Feeding roller 1; 42. Cutting device; 43. Vacuum suction roller; 431. Notch; 44. Clamping device; 441. Rotating shaft; 442. Clamping plate; 443. Clamping claw; 444. Rotating tube; 45. Extrusion folding roller; 451. Roller; 452. Chopping knife; 5. Handle pasting mechanism; 6. Tubing mechanism; 7. Traction mechanism 2; 8. Cutter mechanism; 9. Breaking mechanism; 10. Bottom pasting mechanism; 11. Bag sorting mechanism; 12. Sealing and pasting mechanism; 121. Feeding roller 2; 122. Pressing roller; 123. Die-cutting roller; 124. Pressing roller; 125. Folding roller; 126. Main paper pulling roller; 127. Storage roller; 128. Segmented paper pulling; 129. Cutter; 130. Suction roller. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that it is easy for those with ordinary skills in the prior art to implement these embodiments. However, the present invention can also be implemented in various different forms. Therefore, the present invention is not limited to the embodiments described below. In addition, in order to more clearly describe the present invention, parts that are not connected with the invention will be omitted from the accompanying drawings.

[0042] like Figure 1 , 2 As shown, a production line for anti-dumping paper bags comprises: a feeding mechanism 1, a traction mechanism 2, a deviation correction mechanism 3, an inner strip pasting mechanism 4, a handle pasting mechanism 5, a tube forming mechanism 6, a traction mechanism 2 7, a cutter mechanism 8, a breaking mechanism 9, a bottom pasting mechanism 10, a bag sorting mechanism 11, and a sealing sticker pasting mechanism 12 arranged in sequence along the production line. In the production line, the feeding mechanism 1, the traction mechanism 2, the deviation correction mechanism 3, the handle pasting mechanism 5, the tube forming mechanism 6, the traction mechanism 2 7, the cutter mechanism 8, the breaking mechanism 9, the bottom pasting mechanism 10 and the bag sorting mechanism 11 are all existing technologies of bag making machines. The inner strip pasting mechanism 4 can complete the production and pasting of the inner strip, send the rolled inner strip raw material to the inner strip pasting mechanism 4, and then cut it into a single inner strip, which is extruded and folded, and the folded single inner strip is pasted on the paper bag (the position of the inner strip is as shown in FIG. 1 ). Figure 3As shown in a in the figure, the sealing sticker pasting mechanism 12 can complete the production and pasting of the sealing sticker. The sealing sticker is composed of a main paper and a release paper. The release paper and the main paper go to the same station, are glued together, are crimped, die-cut and pressed, and then folded into a Z-shaped structure. The segmented paper pulling 128 sends the paper to the cutter 129. The cut sealing sticker is sucked by the suction roller 130 and sent to the next station, and the sealing sticker is pasted on the paper bag (the position of the sealing sticker is shown in FIG. Figure 3 As shown in b), the production and pasting of the sealing sticker are completed;

[0043] like Figure 4 As shown, the inner strip pasting mechanism 4 includes: a feeding roller 41, a cutting device 42, a vacuum suction roller 43, a clamping device 44, and a squeezing and folding roller 45;

[0044] In this embodiment, the inner strip raw material is transported to the cutting device 42 through a feeding roller 41, and the feeding roller 41 is located at one side of the cutting device 42, and is cut into a single inner strip by the cutting device 42. A vacuum suction roller 43 arranged below the cutting device 42 adsorbs the single inner strip, and an extrusion folding roller 45 is arranged on one side of the vacuum suction roller 43. The extrusion folding roller 45 extrudes and folds the single inner strip. A clamping device 44 is installed inside the vacuum suction roller 43. The folded single inner strip is fixed by the clamping device 44, rotated to the bottom by the vacuum suction roller 43, and then pasted to the paper bag.

[0045] The paper bags in this embodiment have been glued in advance, and the production line for conveying the paper bags is located at the bottom of the vacuum suction roller 43, and the gap between the two is small. When the clamping device 44 releases a single inner strip, the inner strip will be attached to the paper bag and pressed and adhered again through subsequent processes;

[0046] like Figure 5 , 6 As shown, the extrusion folding roller 45 comprises: a roller 451 and a chopping knife 452. The chopping knife 452 in the extrusion folding roller 45 rotates with the roller 451, and the chopping knife 452 is horizontally arranged on one side of the roller 451. The chopping knife 452 can penetrate into the notch 431 on the vacuum suction roller 43 through rotation, and extrude a single inner strip into an L-shaped structure in the notch 431. The chopping knife 452 is made of a flexible material, and the chopping knife 452 can be separated from the notch 431 on the vacuum suction roller 43 by continuing to rotate.

[0047] like Figure 7As shown, the clamping device 44 includes: a rotating shaft 441, a clamping plate 442, a clamping claw 443, and a rotating tube 444. The rotating shaft 441 is located inside the vacuum suction roller 43, and the clamping plate 442 is installed on one side of the rotating shaft 441. The rotation of the rotating shaft 441 on the clamping device 44 will drive the clamping plate 442 to move, and clamp the folded edge of the folded single inner strip to prevent the inner strip from falling off in the groove 431. The rotating tube 444 is sleeved on the rotating shaft 441, and a plurality of clamping claws 443 are installed on the rotating tube 444. The rotation of the rotating tube 444 will drive the clamping claw 443 to move, and clamp the single inner strip from the folded position as a whole to prevent the inner strip from warping during the pasting process. This design makes the clamping claw 443 more stable during the clamping process, and effectively avoids the risk of falling off when clamped by the clamping plate 442 alone.

[0048] like Figure 1 , 2 As shown, preferably, as an implementable mode, when a handle needs to be installed on the paper bag, the handle sticking mechanism 5 in the production line is used to produce the paper bag handle, and when a handle does not need to be installed on the paper bag, the handle sticking mechanism 5 in the production line stops working, and the paper bag with the inner sticking strip enters the subsequent tube forming process;

[0049] like Figure 8 As shown, the sealing and pasting mechanism 12 comprises: a second feeding roller 121, a crimping roller 122, a die-cutting roller 123, a pressing roller 124, a folding roller 125, a main paper pulling roller 126, a cutting knife 129, and an air suction roller 130;

[0050] In this embodiment, the second feeding roller 121, the crimping roller 122, the die-cutting roller 123, the pressing roller 124, the folding roller 125, and the main paper-pulling roller 126 are arranged adjacent to each other from left to right. One end of the main paper roll and the release paper roll passes through the second feeding roller 121 respectively, and then is transported to the crimping roller 122, the die-cutting roller 123, the pressing roller 124, and the folding roller 125 in sequence. The crimping roller 122 performs crimping treatment on the paper to facilitate subsequent folding. The die-cutting roller 123 cuts the corners of the paper into rounded corners. The pressing roller 124 performs lamination treatment on the main paper c and the release paper to make the main paper c and the release paper more firmly combined. The folding roller 125 folds the paper bag into a Z-shaped structure, and then sends it to the cutter 129 through the main paper-pulling roller 126 to complete the production of a single sealing sticker. The single sealing sticker is sucked by the suction roller 130 and sent to the next station. The single sealing sticker is pasted on the paper bag to complete the production and pasting of the sealing sticker.

[0051] like Fig. 9 As shown, after the main paper c is pressed, the hot melt glue gun head is used to scrape the adhesive, and the adhesive scraping area occupies two-thirds of the main paper c, and the release paper is located at one-third of the main paper c. The release paper is completely pressed and pasted on the main paper c by the pressing roller 124 to form a sealing sticker, as shown in FIG. Fig. 9As shown in (A) and (B), at this time, the middle one-third of the main paper c forms the self-adhesive area e, and the one-third of one side of the main paper c forms the release paper area d. Fig.10 As shown in (C) and (D), when the sealing tape is not used, the release paper area d is pasted on the self-adhesive area e at one-third of the bag. When the sealing tape is used, the release paper area d is torn off and the self-adhesive area e is pasted on the other side of the paper bag to complete the sealing of the paper bag. At this time, the excess release paper is still pasted on the sealing tape, and no excess waste is generated.

[0052] Preferably, as an implementable embodiment, a segmented paper pulling roller 128 and a storage roller 127 can be further provided between the main paper pulling roller 126 and the cutter 129, and the conveying speed of the main paper pulling roller 126 is kept uniform. When the conveying speed of the segmented paper pulling roller 128 is slow, the excess paper can be stored and discharged by the storage roller 127;

[0053] After the sealing sticker is pasted on the paper bag, it is transported to the end of the production line for collection and sorting. At this point, the entire production line completes the paper bag production operation;

[0054] Based on the above-mentioned production line of anti-dumping paper bags, the present invention provides a processing method of the production line of anti-dumping paper bags, and the specific method steps are as follows:

[0055] S1: The paper bag raw materials are transported on the production line through the feeding mechanism 1, the traction mechanism 2 and the deviation correction mechanism 3;

[0056] S2: The inner strip is made by the inner strip sticking mechanism 4, and the vacuum suction roller 43 rotates to the bottom to stick the inner strip to the paper bag;

[0057] S3: When a handle is required to be installed on the paper bag, the handle sticking mechanism 5 in the production line is used to produce the paper bag handle. When a handle is not required to be installed on the paper bag, the handle sticking mechanism 5 in the production line stops working, and the paper bag with the inner sticking strip is transported to the subsequent tube forming process.

[0058] S4: The paper bag with the inner strip passes through the tube forming mechanism 6, the traction mechanism 7, the cutting mechanism 8, the breaking mechanism 9, and the bottom pasting mechanism 10. The produced paper bag has been basically formed and has a certain strength and can be used. Then it is sorted and collected by the bag sorting mechanism 11;

[0059] S5: The sealing sticker is made by the sealing sticker sticking mechanism 12, and then the suction roller 130 rotates to the bottom to stick the sealing sticker to the paper bag;

[0060] S6: After the seal is attached to the paper bag, it is transported to the end of the production line for collection and sorting.

Claims

1. A production line for anti-dumping paper bags, characterized by: The production line comprises: a feeding mechanism (1), a traction mechanism (2), a deviation correction mechanism (3), an inner strip pasting mechanism (4), a handle pasting mechanism (5), a tube forming mechanism (6), a traction mechanism (7), a cutter mechanism (8), a breaking mechanism (9), a bottom pasting mechanism (10), a bag sorting mechanism (11), and a sealing tape pasting mechanism (12) which are sequentially arranged along the production line. The feeding mechanism (1), the traction mechanism (2), the deviation correction mechanism (3), the handle pasting mechanism (5), the tube forming mechanism (6), the traction mechanism (7), the cutter mechanism (8), the breaking mechanism (9), the bottom pasting mechanism (10), and the bag sorting mechanism (11) in the production line are all existing technologies of bag making machines. The inner strip pasting mechanism (4) can complete the production and pasting of the inner strip. The rolled inner strip raw material is sent to the inner strip pasting mechanism (4) through a feeding roller, and then cut into individual inner strips. The individual inner strips are squeezed and folded to form an L-shaped structure. The folded individual inner strips are pasted onto the paper bag according to the requirements. The sealing sticker pasting mechanism (12) can complete the production and pasting of the sealing sticker. The sealing sticker is composed of a main paper and a release paper. The release paper and the main paper are brought to the same workstation, glued together, crimped, die-cut and pressed, and then folded into a Z-shaped structure. The folded paper is cut into individual sealing stickers, and then the individual sealing stickers are pasted onto the paper bag as required.

2. The production line of an anti-dumping paper bag according to claim 1, characterized in that: The inner strip pasting mechanism (4) comprises: a feeding roller (41), a cutting device (42), a vacuum suction roller (43), a clamping device (44), and an extrusion and folding device (45). The vacuum suction roller (43) arranged below the cutting device (42) adsorbs a single inner strip. An extrusion and folding roller (45) is arranged on one side of the vacuum suction roller (43). The extrusion and folding roller (45) extrudes and folds the single inner strip. The clamping device (44) is installed inside the vacuum suction roller (43). The folded single inner strip is fixed by the clamping device (44).

3. The production line of an anti-dumping paper bag according to claim 2, characterized in that: The extrusion and folding device (45) comprises: a roller (451) and a chopping knife (452). The chopping knife (452) in the extrusion and folding roller (45) rotates with the roller (451), and the chopping knife (452) is horizontally arranged on one side of the roller (451). The chopping knife (452) can penetrate into the notch (431) on the vacuum suction roller (43) through the rotation, and extrude a single inner strip into an L-shaped structure in the notch (431). The chopping knife (452) is made of a flexible material.

4. The production line of an anti-dumping paper bag according to claim 2, characterized in that: The clamping device (44) comprises: a rotating shaft (441), a clamping plate (442), a clamping claw (443), and a rotating tube (444). The rotating shaft (441) is located inside the vacuum suction roller (43). The clamping plate (442) is installed on one side of the rotating shaft (441). The rotation of the rotating shaft (441) on the clamping device (44) drives the clamping plate (442) to move, thereby clamping the edge of the folded single inner strip. The rotating tube (444) is sleeved on the rotating shaft (441). A plurality of clamping claws (443) are installed on the rotating tube (444). The rotation of the rotating tube (444) drives the clamping claws (443) to move, thereby clamping the entire single inner strip.

5. A production line for anti-dumping paper bags according to claim 2, 3 or 4, characterized in that: The paper bags of the production line have been glued in advance. The production line for conveying paper bags is located at the bottom of the vacuum suction roller (43). When the clamping device (44) releases a single inner strip, the inner strip will be attached to the paper bag and pressed and glued again through subsequent processes.

6. The production line of an anti-dumping paper bag according to claim 1, characterized in that: When a handle needs to be installed on the paper bag, the handle sticking mechanism (5) in the production line is used to produce the paper bag handle. When a handle does not need to be installed on the paper bag, the handle sticking mechanism (5) in the production line stops working and the paper bag with the inner sticking strip enters the subsequent tube forming process.

7. The production line of an anti-dumping paper bag according to claim 1, characterized in that: The sealing and pasting mechanism (12) comprises: a second feeding roller (121), a crimping roller (122), a die-cutting roller (123), a pressing roller (124), a folding roller (125), a main paper-pulling roller (126), a cutter (129), and an air suction roller (130). The second feeding roller (121), the crimping roller (122), the die-cutting roller (123), the pressing roller (124), the folding roller (125), and the main paper-pulling roller (126) are arranged adjacent to each other from left to right. One end of the main paper roll and the release paper roll respectively pass through the second feeding roller (121), and then are respectively passed through the second feeding roller (121). The paper is then conveyed to the crimping roller (122), the die-cutting roller (123), the pressing roller (124), and the folding roller (125). The crimping roller (122) performs crimping processing on the paper, the die-cutting roller (123) cuts the corners of the paper into rounded corners, the pressing roller (124) performs lamination processing on the main paper c and the release paper, and the folding roller (125) folds the paper bag into a Z-shaped structure. The paper is then conveyed to the cutter (129) for cutting via the main paper pulling roller (126), thereby completing the production of a single sealing sticker. The single sealing sticker is sucked by the suction roller (130) and conveyed to the next station.

8. The production line of an anti-dumping paper bag according to claim 7, characterized in that: A segmented paper pulling roller (128) and a storage roller (127) may be additionally provided between the main paper pulling roller (126) and the cutter (129). When the conveying speed of the segmented paper pulling roller (128) is slow, the excess paper may be stored and discharged by the storage roller (127).

9. The production line of an anti-dumping paper bag according to claim 8, characterized in that: The main paper pulling roller (126) is controlled independently by a motor, the conveying speed of the main paper pulling roller (126) is kept uniform, and the conveying speed of the segmented paper pulling roller (128) is adjustable.

10. A production line for anti-dumping paper bags according to any one of claims 1 to 9, characterized in that: The processing method of this production line is as follows: S1: The paper bag raw material is transported on the production line through the feeding mechanism (1), the traction mechanism (2) and the deviation correction mechanism (3); S2: the inner strip is made by the inner strip sticking mechanism (4), and the vacuum suction roller (43) rotates to the bottom to stick the inner strip onto the paper bag; S3: When a handle is required to be installed on the paper bag, the handle sticking mechanism (5) in the production line is used to produce the paper bag handle. When a handle is not required to be installed on the paper bag, the handle sticking mechanism (5) in the production line is stopped and does not work, and the paper bag with the inner sticking strip is conveyed to the subsequent tube forming process; S4: The paper bag with the inner strip passes through the tube forming mechanism (6), the second pulling mechanism (7), the cutting mechanism (8), the breaking mechanism (9), and the bottom gluing mechanism (10). The produced paper bag is basically formed and has a certain strength and can be used. It is then sorted and collected by the bag sorting mechanism (11); S5: The sealing sticker is made by the sealing sticker sticking mechanism (12), and then the suction roller (130) rotates to the bottom to stick the sealing sticker to the paper bag; S6: After the seal is attached to the paper bag, it is transported to the end of the production line for collection and sorting.

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