A production device of a fresh vegetable and fruit packaging bag

Abstract

The utility model discloses a kind of production equipment of fresh vegetables and fruits packaging bag, including the unwinding unit of the packaging bag paper sheet is unwound, the printing unit of the packaging bag paper sheet is printed to unwinding, the punching unit of the packaging bag paper sheet is punched after printing, the patch unit of the packaging bag paper sheet is pasted hand-held paper sheet after punching, the pre-cut unit of the packaging bag paper sheet is pre-cut after patch, the bag-making unit of the packaging bag paper sheet is bag-making after pre-cut.The each procedure of the production equipment is all automatic connection production mode, can independently automatically complete and automatically transport to next procedure, complete the feeding, bag-making etc. Process of entire packaging bag, cancel traditional manual punching and manual operation etc. Part, can reduce single packaging bag product heating production cost and overall production process production cost, greatly shorten the production cycle of packaging bag product, improve production efficiency and satisfy the production needs of customer.

Description

Technical Field

[0001] This utility model relates to the technical field of production equipment for packaging bags for vegetables, fruits, etc., and in particular to production equipment for fresh fruit and vegetable packaging bags that can be produced automatically and reduce labor costs. Background Technology

[0002] Currently, after fresh vegetables and fruits mature, they are directly picked from the farm, placed in packaging bags, and then delivered directly to supermarkets for sale. This method of selling fresh vegetables and fruits directly to supermarkets is most common in Australia. The packaging bags for fresh vegetables and fruits are called fresh vegetable and fruit bags. These bags need to be perforated to create ventilation holes and have handles punched on both sides for carrying. An easy-to-tear paper piece with ventilation holes is also needed at the top of the bag for hooking the fresh vegetables and fruits onto a hook when picking them. After the fresh vegetables and fruits are picked and placed in the bag, the bag can be pulled down to separate the easy-to-tear paper piece from the bag, making it convenient for fresh vegetables and fruits to be delivered directly to supermarkets for sale.

[0003] The production process of fresh fruit and vegetable packaging bags on the market is more complex than that of other packaging bags. The process involves first making the bag, then manually transferring it to another machine for punching ventilation holes. Next, paper handles are manually attached to both sides of the bag, and it is then transferred to a punching machine to punch holes for the handles. Finally, one of the two tear-off pieces formed during bag production is manually torn off. This completes the production of the fresh fruit and vegetable packaging bag. Furthermore, a special mold is used to die-cut excess paper and edges to remove waste, ensuring the packaging bags are neat, uniform, and meet the product's size requirements. However, the aforementioned production methods for fresh produce packaging bags require a significant amount of manual labor for punching and handling, as well as multiple handling and transfers of the products. Furthermore, they necessitate customized equipment and corresponding processes, resulting in low overall production efficiency and greater production difficulty. This makes it difficult to meet customer production needs, and the production cost per product is high, with long and challenging delivery times. When customer order volumes surge, there will be significant delivery pressure and risks.

[0004] Currently, there is no automated production equipment capable of producing packaging bags on a single production line, nor is there an automated production technology solution that integrates all production processes onto a single line. Therefore, improvements are needed to existing equipment for producing packaging bags for fresh produce to reduce the production cost per unit and significantly shorten the production cycle. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a production equipment for fresh fruit and vegetable packaging bags. This equipment includes an unwinding process for unwinding packaging bag paper sheets, a printing process for printing on the packaging bag paper sheets, a punching process for punching holes in the packaging bag paper sheets to form ventilation holes, a attaching process for attaching handle patches to the packaging bag paper sheets, a pre-cutting process for pre-cutting the packaging bag paper sheets to form three tear lines (easy-tear lines), and a bag-making process for tearing the packaging bag paper sheets, punching handle patches, removing waste paper, and forming the bag. All of the above processes are automated line production methods, capable of independently and automatically completing and automatically conveying the finished product to the next process, completing the entire packaging bag feeding and bag-making process. It eliminates traditional manual punching and manual operation, reducing the production cost of individual packaging bags and the overall production cost, significantly shortening the production cycle of packaging bag products, improving production efficiency, and meeting customer production needs. Even with a surge in customer orders, it still maintains strong and timely delivery capabilities.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a production equipment for fresh fruit and vegetable packaging bags, including an unwinding unit for unwinding packaging bag paper sheets, a printing unit for printing on the unwound packaging bag paper sheets, a punching unit for punching holes in the printed packaging bag paper sheets, a pasting unit for pasting handle paper sheets on the punched packaging bag paper sheets, a pre-cutting unit for pre-cutting the pasted packaging bag paper sheets, and a bag forming unit for forming bags from the pre-cut packaging bag paper sheets.

[0007] The patch unit includes a patch machine, two symmetrical counter-rotating unwinding racks for unwinding the paper sheets from the top of the patch machine, a glue nozzle for spraying glue onto the sticker position of the packaging bag paper sheets inside the patch machine, a paper sheet cutter for cutting the paper sheets into individual paper sheets inside the patch machine, a paper feed roller for feeding the individual paper sheets to the sticker position inside the patch machine, and a paper sheet pressure roller for pressing and clamping the paper sheets and packaging bag paper sheets at the bonding position inside the patch machine.

[0008] The pre-cutting unit includes a pre-cutting machine and a pre-cutting roller located inside the pre-cutting machine to pre-cut the paper of the packaging bag into three tear lines on each packaging bag.

[0009] The bag-making unit includes a bag-making machine, a forming device on the bag-making machine for positioning and forming packaging bag paper pieces into packaging bag paper tubes, a handle-type punching roller on the bag-making machine for punching holes at the handle paper position of the packaging bag paper tube, a tearing and cutting roller on the bag-making machine for tearing off a piece of waste paper by two closely spaced tear lines on the top surface of the front end of the packaging bag paper tube, a tearing and cutting roller for completely tearing and breaking the rear end of the packaging bag paper tube to form a single packaging bag paper sleeve, and a folding and pasting forming device for folding and pasting the bottom of the single packaging bag paper sleeve.

[0010] Furthermore, the punching unit includes a punching machine base, a punching input roller tube located at the paper inlet end of the punching machine base, a punching flat platform located inside the punching machine base, a punching cutter located inside the punching machine base and above the punching flat platform for downward punching, and a punching output roller tube located at the paper outlet end of the punching machine base.

[0011] Furthermore, the punching machine also includes an edge-trimming cutter for cutting and finishing the edges of the packaging bag paper; the punching unit also includes a waste paper collection device for collecting waste paper after punching and waste paper from the trimmed packaging bag paper.

[0012] Furthermore, the pre-cutting roller has three separately spaced needle-tooth blades on its outer circumferential surface.

[0013] Furthermore, the portable patch punching roller has a portable patch punching tool that protrudes outward and forms an open rectangular shape on its outer circumferential surface.

[0014] Furthermore, the outer circumference of the tearing paper-beating roller tube is provided with small adhesive needles that protrude outward and are pressed into the paper surface of the front top surface of the packaging bag paper tube to form friction and stick the paper surface to achieve the effect of tearing waste paper.

[0015] Furthermore, the outer circumference of the tearing and breaking rod tube is provided with an outwardly protruding cam, and an arc-shaped breaking rod protrudes outward from the outer circumference of the cam, forming a shape similar to "6" with the breaking rod and the cam.

[0016] Furthermore, the bag-making machine is also equipped with a waste removal cutting knife for removing excess waste paper from the rear end of the packaging bag paper tube, and a waste paper collection device for collecting the waste paper torn off by the tearing paper roller tube and the excess waste paper removed by the waste removal.

[0017] Furthermore, both the waste paper collection device and the waste paper cleaning collection device include a funnel-shaped collection hopper, a collection pipe connected to the collection hopper, a collection fan connected to the collection pipe, and a collection box connected to the air outlet of the collection fan.

[0018] In summary, the production equipment for fresh fruit and vegetable packaging bags of this utility model includes an unwinding process for unwinding the packaging bag paper, a printing process for printing on the packaging bag paper, a punching process for punching holes in the packaging bag paper to form ventilation holes, a attaching process for attaching handle patches to the packaging bag paper, a pre-cutting process for pre-cutting the packaging bag paper to form three tear lines (easy-tear lines), and a bag-making process for tearing the packaging bag paper, punching handle patches, removing waste paper, and forming the bag. All of the above processes are automated line production methods, which can be completed independently and automatically and automatically transported to the next process to complete the entire process of feeding and bag making of the packaging bag. It eliminates the traditional manual punching and manual operation, which can reduce the production cost of a single packaging bag product and the overall production cost of the production process, greatly shorten the production cycle of the packaging bag product, improve production efficiency and meet the production needs of customers, and still have a strong and timely delivery capability even after a surge in customer orders. Attached Figure Description

[0019] Figure 1 This is a simplified top view schematic diagram of the structure of the production equipment for fresh fruit and vegetable packaging bags according to Embodiment 1 of this utility model;

[0020] Figure 2 This is a simplified schematic diagram of the surface mount unit structure;

[0021] Figure 3 This is a simplified structural diagram of the pre-cut unit;

[0022] Figure 4 This is a simplified structural diagram of a bag-making unit;

[0023] Figure 5 This is a simplified structural diagram of a punching unit;

[0024] Figure 6 This is a simplified structural diagram of a waste paper collection device and a waste paper cleaning and collection device;

[0025] Figure 7 This is a simplified schematic diagram of the pre-cutting roller structure;

[0026] Figure 8 This is a simplified structural diagram of a handheld patch punching roller;

[0027] Figure 9 This is a simplified schematic diagram of the structure of a tearing paper-beating tube;

[0028] Figure 10 This is a simplified schematic diagram of the structure of the tearing and breaking of the tube;

[0029] The labels in the attached diagram are as follows: 1. Packaging bag paper sheet; 2. Unwinding unit; 3. Printing unit; 4. Punching unit; 5. Patch attaching unit; 6. Pre-cutting unit; 7. Bag making unit; 8. Punching machine; 9. Punching input roller tube; 10. Punching flat table; 11. Punching cutter; 12. Punching output roller tube; 13. Patch attaching machine; 14. Handheld paper sheet unwinding rack; 15. Glue nozzle; 16. Handheld paper sheet cutter; 17. Paper feeding roller tube; 18. Handheld paper sheet pressure roller; 19. Pre-cutting machine; 20. Pre-cutting blade roller; 21. Bag making machine; 22. Forming. Devices; 23. Hand-held patch punching knife roller; 24. Tear-off paper roller tube; 25. Tear-off breaking roller tube; 26. Folding and pasting forming device; 27. Edge trimming cutter; 28. Punching and cutting drive cylinder; 29. ​​Waste removal and cutting knife; 30. Hand-held paper cutting knife drive cylinder; 31. Needle knife; 32. Hand-held patch punching knife; 33. Adhesive needle; 34. Cam; 35. Breaking rod; 36. Collection hopper; 37. Collection pipe; 38. Collection fan; 39. Collection box; 40. Edge trimming cutter drive cylinder; 41. Waste removal and cutting knife drive cylinder. Detailed Implementation

[0030] Example 1

[0031] The production equipment for fresh fruit and vegetable packaging bags described in Embodiment 1 is as follows: Figure 1 As shown, the equipment includes an unwinding unit 2 for unwinding packaging bag paper sheets 1, a printing unit 3 for printing on the unwound packaging bag paper sheets, a punching unit 4 for punching holes in the printed packaging bag paper sheets, a attaching unit 5 for attaching handle paper sheets to the punched packaging bag paper sheets, a pre-cutting unit 6 for pre-cutting the attached packaging bag paper sheets, and a bag-making unit 7 for forming bags from the pre-cut packaging bag paper sheets. This production equipment for fresh produce packaging bags includes an unwinding unit, a printing unit, a punching unit, a pre-cutting unit, and a bag-making unit. During the production of fresh produce packaging bags, the following steps are performed sequentially: unwinding the packaging bag paper sheets, printing the packaging bag paper sheets, punching the packaging bag paper sheets to form ventilation holes, attaching handle paper sheets to the packaging bag paper sheets, pre-cutting the packaging bag paper sheets to form tear lines, and forming the packaging bag paper sheets into individual packaging bag products. This completes the entire automated production process for fresh produce packaging bags. The unwinding unit and the printing unit are well-known technical means in the art and will not be described in detail here. The technical solutions of the unwinding unit and the printing unit are also basically consistent with the technical solutions and principles of the feeding and unwinding mechanism and the inline printing mechanism in Chinese Patent No. 202111192558.0, "A Manufacturing Device and Manufacturing Method for Takeaway Tote Bags". The technical content of this patent document can also be referred to.

[0032] In this embodiment 1, as Figure 2As shown, the patch unit includes a patch machine 13, two symmetrical counter-rotating unwinding racks 14 located on the top of the patch machine for unwinding the paper sheets, a glue nozzle 15 located inside the patch machine for spraying glue onto the paper sheet of the packaging bag, a paper sheet cutter 16 located inside the patch machine for cutting the paper sheets into individual paper sheets, a paper feed roller tube 17 located inside the patch machine for feeding the individual paper sheets to the paper sheet affixing position, and a paper sheet pressure roller 18 located inside the patch machine for pressing and tightening the paper sheets and packaging bag paper sheets at the bonding position. After the packaging bag paper is punched to create ventilation holes, it enters the patch assembly process for attaching the handle. The packaging bag paper first enters the patch assembly machine and passes through the glue nozzle, which sprays glue onto designated areas of the packaging bag paper. At this point, the handle paper unwinding rack unwinds the paper, and as it passes below the handle paper cutter, the cutter presses down to cut the paper into individual handle pieces. Due to inertia and the downward pressure of the feed roller, the individual handle pieces are simultaneously conveyed by the feed roller to the glue application area on the packaging bag paper, thus attaching them to the packaging bag paper. Finally, the packaging bag paper with the attached handle pieces is pressed and tightened by the handle paper pressure roller, ensuring a secure attachment, and then proceeds to the next process. The portable paper cutter is controlled by a portable paper cutter drive cylinder 30 to press down for cutting and reset.

[0033] In this embodiment 1, as Figure 3 As shown, the pre-cutting unit includes a pre-cutting machine 19 and a pre-cutting blade roller 20 disposed within the pre-cutting machine to pre-cut the packaging bag paper pieces, forming each packaging bag with three point-cut tear lines. When the carrying paper pieces are pasted onto the packaging bag paper pieces and enter the pre-cutting process, the packaging bag paper pieces enter the pre-cutting machine. As they pass through the pre-cutting blade roller, the rotating pre-cutting blade roller pre-cuts three point-cut tear lines on the packaging bag paper pieces, enabling the packaging bag paper tubes formed in subsequent processes to be broken and torn, thus pre-cutting the packaging bag paper tubes to achieve the effect of tearing and forming individual packaging bag paper sleeves.

[0034] In this embodiment 1, as Figure 4As shown, the bag-making unit includes a bag-making machine 21, a forming device 22 on the bag-making machine for positioning and forming packaging bag paper pieces into packaging bag paper tubes, a handle-type punching roller 23 on the bag-making machine for punching holes at the handle paper position of the packaging bag paper tube, a tearing and cutting roller tube 24 on the bag-making machine for tearing off a piece of waste paper by two closely spaced tear lines on the top surface of the front end of the packaging bag paper tube, a tearing and breaking roller tube 25 for completely tearing and breaking the rear end of the packaging bag paper tube to form a single packaging bag paper sleeve, and a folding and pasting forming device 26 for folding and pasting the bottom of the single packaging bag paper sleeve. After being pre-cut, the paper sheets for packaging bags enter the bag-making machine and are pressed into a paper tube shape by a forming device, thus forming a long packaging bag tube. After the packaging bag tube is formed, it passes through the handle punching roller, which punches the two handle paper pieces at the position of the packaging bag tube. This creates two symmetrical overlapping handle holes for the handles of the entire fresh fruit and vegetable packaging bag. After the handle holes are punched, the paper tube passes through the tearing roller, which tears the paper between two closely spaced tear lines. That is, the top piece of paper is torn off, but the overlapping piece at the bottom is not torn off. This retained piece of paper can be torn off by simply pulling the bag after the grapes are put into the bag, achieving the effect of convenient hanging and subsequent packaging of the packaging bag. After a piece of waste paper is torn off, it enters the tearing and breaking roller tube. This tearing and breaking roller tube breaks the point tear line between two connected packaging bag paper sleeves (that is, the point tear line between the bottom of the previous packaging bag paper sleeve and the opening of the next packaging bag paper sleeve), thus forming a single packaging bag paper sleeve. Finally, the broken packaging bag paper sleeve enters the folding and pasting forming device to undergo corresponding folding, gluing, pasting and forming processes to form a complete single fresh fruit and vegetable packaging bag product.

[0035] The forming device and the folding and pasting forming device are well-known technical means to those skilled in the art and will not be described in detail here. The technical solution of this forming device is also basically consistent with the technical solution and principle of the paper bag forming mechanism in Chinese Patent No. 202111192558.0, "A Manufacturing Device and Manufacturing Method for Takeaway Tote Bags". The technical content of this patent document can also be referred to. The folding and pasting forming device is also basically consistent with the technical solution and principle of the material pulling device, conveying wheel device, pressing device, bottom opening device, bottom flipping device, square bottom forming hub device, bottom glue device, bottom insertion device, bottom closing device, control device, conveying hub device and bag collecting hub device of the paper bag forming part mechanism in Chinese Patent No. 202111192558.0, "A Manufacturing Device and Manufacturing Method for Takeaway Tote Bags". The technical content of this patent document can also be referred to.

[0036] In this embodiment 1, as Figure 5 As shown, the punching unit includes a punching machine 8, a punching input roller 9 located at the paper inlet end of the punching machine, a punching platform 10 located within the punching machine, a punching cutter 11 located within the punching machine and above the punching platform for downward punching, and a punching output roller 12 located at the paper outlet end of the punching machine. After the printing process and before the paper bag pasting process, the packaging bag paper is punched to create ventilation holes on the bag body of the fresh produce packaging bag. During punching, the paper is first fed into the punching machine through the punching input roller, then horizontally and stably conveyed across the punching platform. When passing under the punching cutter, the punching cutter presses down to punch the packaging bag paper, creating ventilation holes. After punching, the paper is output through the punching output roller and enters the paper bag pasting process. The punching cutter can be controlled and driven by a punching cutter drive cylinder 28, which can control the punching cutter's downward punching and resetting.

[0037] In this embodiment 1, the punching machine also includes an edge-trimming cutter 27 for cutting and trimming the packaging bag paper; the punching unit also includes a waste paper collection device for collecting waste paper after punching and waste paper from the trimmed packaging bag paper. Since the width of the packaging bag paper unwound from the unwinding unit does not meet the size requirements of fresh fruit and vegetable packaging bags and subsequent production requirements, the width of the packaging bag paper needs to be trimmed during the punching process to make the packaging bag paper meet the subsequent production size requirements; the edge-trimming cutter is controlled by an edge-trimming cutter drive cylinder 40 to press down and cut and reset.

[0038] In this embodiment 1, as Figure 7 As shown, the pre-cutting roller 20 has three separate, spaced-apart needle-tooth blades 31 on its outer circumferential surface. These needle-tooth blades are like needle-shaped bayonets, and the three needle-tooth blades are arranged in a row horizontally along the circumferential surface of the pre-cutting roller. In this way, when the packaging bag paper passes through the needle-tooth blades of the pre-cutting roller, it can form three point-cut tear lines on the packaging bag paper.

[0039] In this embodiment 1, as Figure 8 As shown, the outer circumference of the portable patch punching roller is provided with an outwardly protruding, non-closed rectangular portable patch punching cutter 32. This portable patch punching is similar to a rectangle with four rounded corners, and one side does not have a cutting edge. In this way, a non-interrupted portable patch handle hole can be formed on the fresh fruit and vegetable packaging bag.

[0040] In this embodiment 1, as Figure 9As shown, the outer circumference of the tearing paper roller tube is provided with small adhesive needles 33 that protrude outwards and press into the paper surface of the front top surface of the packaging bag paper tube to create friction and stick the paper surface, thereby achieving the effect of tearing waste paper. These adhesive needles, like the toothed blades, are arranged relatively closely, and their width is smaller than the width of the waste paper being torn. Furthermore, the end face of the tearing paper roller tube where the adhesive needles are located has a certain frictional abrasive surface, which has the effect of friction and sticking the paper surface, thus enhancing the tearing effect of the waste paper. Its working principle is similar to that of a lint roller.

[0041] In this embodiment 1, as Figure 10 As shown, the tearing and breaking roller tube has an outwardly protruding cam 34 on its outer circumference. An arc-shaped breaking rod 35 protrudes outward from the outer circumference of the cam, forming a shape similar to the number "6". When the tearing and breaking roller tube rotates with the cam and breaking rod, the end of the breaking rod rotates to the tear line between two connected packaging bag sleeves and presses down. This pressing down breaks the tear line, separating the bottom of the previous packaging bag sleeve from the opening of the next packaging bag sleeve. The breaking rod continues to rotate downwards and then upwards, flipping out from behind the bottom of the previous packaging bag sleeve without obstructing its continued transport. Thus, the breaking rod continues to break the tear line when it reaches the next tear line, forming a continuous, uninterrupted process for breaking a single packaging bag sleeve.

[0042] In this embodiment 1, the bag-making machine is also equipped with a waste removal cutting knife 29 for removing excess waste paper from the rear end of the packaging bag paper tube, and a waste paper collection device for collecting the waste paper torn off by the tearing paper roller tube and the excess waste paper removed during waste removal. After forming a single packaging bag paper sleeve, before entering the folding and pasting forming device, there will be some excess waste paper at the bottom of the packaging bag paper sleeve that needs to be removed so that it can meet the size requirements and be cut neatly when entering the folding and pasting forming device. The waste removal cutting knife is used to remove the excess waste paper at the rear end of the packaging bag paper sleeve. The waste removal cutting knife is controlled by the waste removal cutting knife drive cylinder 41 to press down to cut and reset.

[0043] In this embodiment 1, as Figure 6 As shown, both the waste paper collection device and the waste paper cleaning collection device include a funnel-shaped collection hopper 36, a collection pipe 37 connected to the collection hopper, a collection fan 38 connected to the collection pipe, and a collection box 39 connected to the air outlet of the collection fan. Since some waste paper is generated during processes such as punching, edge trimming, tearing, and cleaning, the waste paper collection device and the waste paper cleaning collection device collect and process this waste paper. When collecting waste paper, the collection fan uses strong suction to draw the waste paper falling into the collection hopper, which is then adsorbed and collected through the collection pipe into the collection box for unified collection.

[0044] In this embodiment 1, the production equipment for the fresh produce packaging bag includes an unwinding process for unwinding the packaging bag paper, a printing process for printing the packaging bag paper, a punching process for punching the packaging bag paper to form ventilation holes, a attaching process for attaching handle patches to the packaging bag paper, a pre-cutting process for pre-cutting the packaging bag paper to form three tear lines (easy-tear lines), and a bag-making process for tearing the packaging bag paper, punching handle patches, removing waste paper, and forming the bag. All of the above processes are automated line production methods, which can be completed independently and automatically and automatically transported to the next process to complete the entire packaging bag feeding and bag making process. The traditional manual punching and manual operation are eliminated, which can reduce the production cost of a single packaging bag product and the overall production cost of the production process, greatly shorten the production cycle of the packaging bag product, improve production efficiency and meet the production needs of customers, and still have a strong and timely delivery capability even after a surge in customer orders.

[0045] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the structure of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A production equipment for packaging bags of fresh fruits and vegetables, characterized in that, It includes an unwinding unit (2) for unwinding packaging bag paper (1), a printing unit (3) for printing on the unwound packaging bag paper, a punching unit (4) for punching holes in the printed packaging bag paper, a pasting unit (5) for pasting handle paper on the punched packaging bag paper, a pre-cutting unit (6) for pre-cutting the pasted packaging bag paper, and a bag making unit (7) for forming bags from the pre-cut packaging bag paper. The patch unit includes a patch machine (13), two symmetrical counter-rotating unwinding racks (14) on the top of the patch machine for unwinding the paper sheets, a spray nozzle (15) inside the patch machine for spraying glue at the sticker position of the paper sheets of the packaging bag, a paper sheet cutter (16) inside the patch machine for cutting the paper sheets into individual paper sheets, a paper feed roller (17) inside the patch machine for feeding the individual paper sheets to the sticker position of the paper sheets, and a paper sheet pressure roller (18) inside the patch machine for pressing and tightening the bonding position of the paper sheets and the packaging bag paper sheets. The pre-cutting unit includes a pre-cutting machine (19) and a pre-cutting roller (20) installed in the pre-cutting machine to pre-cut the paper of the packaging bag to form each packaging bag with three point-cut tear lines; The bag-making unit includes a bag-making machine (21), a forming device (22) on the bag-making machine for positioning and forming the packaging bag paper into a packaging bag paper tube, a handle punching roller (23) on the bag-making machine for punching holes at the handle paper position of the packaging bag paper tube, a tearing paper-cutting roller (24) on the bag-making machine for tearing off a piece of waste paper by two closely spaced tear lines on the top surface of the front end of the packaging bag paper tube, a tearing and breaking roller (25) for completely tearing and breaking the rear end of the packaging bag paper tube to form a single packaging bag paper sleeve, and a folding and pasting forming device (26) for folding and pasting the bottom of the single packaging bag paper sleeve.

2. The production equipment for fresh fruit and vegetable packaging bags according to claim 1, characterized in that, The punching unit includes a punching machine base (8), a punching input roller tube (9) located at the paper inlet end of the punching machine base, a punching plane (10) located inside the punching machine base, a punching cutter (11) located inside the punching machine base and above the punching plane, capable of punching downwards, and a punching output roller tube (12) located at the paper outlet end of the punching machine base.

3. The production equipment for fresh fruit and vegetable packaging bags according to claim 2, characterized in that, The punching machine also includes an edge trimming cutter (27) for trimming and finishing the paper of the packaging bag; the punching unit also includes a waste paper collection device for collecting waste paper after punching and waste paper from trimmed packaging bag pieces.

4. The production equipment for fresh fruit and vegetable packaging bags according to claim 3, characterized in that, The pre-cutting roller (20) has three separate needle-tooth blades (31) on its outer circumferential surface.

5. The production equipment for fresh fruit and vegetable packaging bags according to claim 4, characterized in that, The portable patch punching roller has a portable patch punching tool (32) that protrudes outward and forms an open rectangular shape on the outer circumferential surface of the roller.

6. The production equipment for fresh fruit and vegetable packaging bags according to claim 5, characterized in that, The outer circumference of the tearing paper-beating roller tube is provided with small paper-adhesive needles (33) that protrude outward and are pressed into the paper surface of the front top surface of the packaging bag paper tube to form friction and stick the paper surface to achieve the effect of tearing waste paper.

7. The production equipment for fresh fruit and vegetable packaging bags according to claim 6, characterized in that, The outer circumference of the tearing and breaking rod tube is provided with an outwardly protruding cam (34), and an arc-shaped breaking rod (35) protrudes outward from the outer circumference of the cam. The breaking rod and the cam form a shape similar to "6".

8. The production equipment for fresh fruit and vegetable packaging bags according to claim 7, characterized in that, The bag making machine is also equipped with a waste removal cutting knife (29) for removing excess waste paper from the rear end of the packaging bag paper tube, and a waste paper collection device for collecting the waste paper torn off by the tearing paper roller tube and the excess waste paper removed by the waste removal.

9. The production equipment for fresh fruit and vegetable packaging bags according to claim 8, characterized in that, The waste paper collection device and the waste paper cleaning collection device both include a funnel-shaped collection hopper (36), a collection pipe (37) connected to the collection hopper, a collection fan (38) connected to the collection pipe, and a collection box (39) connected to the air outlet of the collection fan.

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