A bag making machine with a continuous patch manufacturing tear resistant bag

Abstract

The application discloses a bag making machine with a connected patch for manufacturing a tear-proof bag, comprising a paper unwinding device for unwinding original paper, a printing device for printing the original paper, a paper patching device for pasting a hand strap and a tear-proof patch on the original paper, a paper bag forming device for forming a paper bag from the original paper, and a paper bag forming output device for outputting the formed paper bag. The bag making machine with the connected patch for manufacturing the tear-proof bag can simultaneously produce the hand strap and the tear-proof patch in a line and then connect them to the bag making machine for production, realizes the whole pipeline continuous production, combines the production site and the production management together, and achieves the effect of good production resource integration. The automatic continuous production mode is adopted to replace the traditional manual pasting mode of the tear-proof patch, solves many problems of the manual pasting, and can reduce the labor intensity, improve the work efficiency and the product quality.

Description

Technical Field

[0001] This invention relates to the technical field of bag-making equipment for paper bag production, and more particularly to a bag-making machine specifically designed for manufacturing tear-resistant bags with anti-tear function and anti-theft purpose, and for automated production line manufacturing of tear-resistant bags with inline patch manufacturing. Background Technology

[0002] Currently, in the field of paper bag manufacturing, there is a type of tamper-evident packaging bag that prevents tearing and theft after filling. This involves attaching a self-adhesive release liner to the bag's handle after the bag-making process. This release liner serves to seal the bag after food is loaded and provides an irreversible tear-resistant function. Once the bag is sealed, tearing it will irreversibly open the bag or add a feature to indicate if it has been tampered with, allowing consumers to easily identify whether the bag has been opened by someone with malicious intent. This achieves the purpose of preventing theft and tearing. In the traditional manufacturing process of this type of tamper-evident bag, after the paper bag is manufactured, the release liner is manually glued, then attached to the bag opening or handle, and finally pressed tightly together to complete the production of the tamper-evident bag. This manual method of attaching release liner sheets is not only inefficient and costly, with each worker only able to attach about 8 release liner bags per minute, but also extremely labor-intensive. It also presents numerous problems, including: (1) The release liner sheets are made by rolling out a whole roll of release liner sheets, then cutting them into individual release liner modules. These modules are then folded to form a foldable structure, with one folded side attached to the handle and the other side having release liner attached with adhesive. Finally, the folded release liner modules are glued to the handle bag. When manually attaching the release liner modules to the handle bag, it is easy to misalign the two sides of the release liner modules during the folding process. Furthermore, it is difficult to ensure the amount of glue applied to the handle, or to ensure the glue is applied correctly, leading to poor adhesion between the release liner bags and reduced product quality or even product scrap. This significantly lowers the yield rate of the release liner bags. (2) Since the release paper of the tear-resistant release paper module is bonded with self-adhesive (self-adhesive makes it easy to tear the release paper during the sealing of the bag opening when packaging food), during the process of manually folding and applying glue to stick it to the bag body, the release paper on the tear-resistant release paper module may be accidentally torn or pried open by other foreign objects, resulting in insufficient adhesion or poor adhesion of the release paper to the tear-resistant release paper module. When the product is completed and shipped to the store for use, the release paper may have already come off. At this time, the self-adhesive has been bonded to the other inner side of the bag body, making the bag opening unusable or the adhesion weak. Such tear-resistant bags are basically unusable. The tear-resistant bags can only be used as ordinary handle bags and become without anti-theft function, or they are directly scrapped and unusable, increasing the loss rate.(3) In the traditional manufacturing process of paper bags with handles, the bag body is often produced by printing, applying glue, gluing and forming, and unloading the bag body after the paper is unrolled. The handle also needs to be unrolled, cut, and conveyed to the bag making machine to be glued and fixed to the bag body. In the above manufacturing process of bag body and handle, the handle and bag body are often produced and carried out independently. The speed at which the handle is conveyed to the bag body needs to be synchronized with the production speed of the bag body. This allows the handle to be attached when producing a bag, so that the production can be synchronized. However, when producing the handle, the handle is pre-cut. After the paper is printed and glued, the cut handle is fed to the glue position for gluing. This production method will cause the handle production to be handled separately. It will not be able to achieve synchronous and automated production connected with the bag making machine. It will also increase the space used for producing the handle and the staffing, resulting in increased production costs. It will not achieve an integrated continuous synchronous production line, and will not simplify the production steps and production management.

[0003] Furthermore, none of the existing patent documents involve a technical solution for the integrated automated production of handle production and tear-resistant release liner production on a bag-making machine, either publicly available or through technical instruction. Therefore, to avoid the shortcomings of the existing technology, it is necessary to improve it to develop a production equipment that simultaneously connects handle production and tear-resistant release liner production on a bag-making machine to produce tear-resistant bags. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a bag making machine with inline patch manufacturing of tear-resistant bags. This bag making machine can simultaneously connect the production of handles and the production of tear-resistant release liner to the bag making machine for production, realizing continuous production of the entire assembly line. At the same time, it combines the production site and production management to achieve a good effect of production resource integration. Moreover, the use of automated continuous production method replaces the traditional method of manually pasting tear-resistant release liner, solving many problems of manual pasting, reducing labor intensity, improving work efficiency and product quality. During production, this bag-making machine with inline patch manufacturing of tear-resistant bags first unwinds the raw paper (a whole sheet of paper) through an unwinding device and prints the raw paper through a printing device. Simultaneously, the patching device produces handles and tear-resistant release liner sheets. The patching device also applies adhesive to the raw paper from both the front and back, and attaches the handles and tear-resistant release liner sheets to the front and back adhesive points respectively. Finally, the raw paper is bonded with glue and the paper bag is formed into a tear-resistant bag, which is then output and collected for packaging by a paper bag forming output device, completing the production of the tear-resistant bag.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a bag making machine with inline patch manufacturing of tear-resistant bags, including an unwinding device for unwinding the raw paper, a printing device for printing on the raw paper, a sticker attaching handles and tear-resistant release paper to the raw paper, a paper bag forming device for forming paper bags from the raw paper, and a paper bag forming output device for outputting the formed paper bags.

[0006] The sticker device includes a handle-attaching component for attaching handles to the base paper, an anti-tear release paper-attaching component for attaching anti-tear release paper to the corresponding handle position, and an adhesive-dispensing component for applying adhesive to the base paper from both the front and back.

[0007] The attached handle assembly includes a handle unwinding unit for unwinding the handle, a handle slitting unit for slitting the handle into individual handle modules, and a handle conveying unit for conveying the individual handle modules to the original paper attaching handle module position.

[0008] The anti-tear release paper assembly includes an anti-tear release paper unwinding unit for unwinding the anti-tear release paper, a correction and positioning unit for positioning and correcting the output positions on both sides of the conveyed anti-tear release paper, a folding and forming unit for folding the corrected anti-tear release paper into shape, a cutting unit for precisely cutting the folded anti-tear release paper into individual anti-tear release paper modules at a fixed distance, a pusher unit for pushing individual anti-tear release paper modules, and a conveying and pressing unit for conveying the pushed anti-tear release paper modules to the original paper anti-tear release paper pasting module position for pressing and bonding.

[0009] Furthermore, the dispensing assembly includes an applicator roller, a glue roller with a hollow structure made of hollow stainless steel connected to and mounted on the applicator roller, a glue rotary joint installed at the glue inlet end of the glue roller and connected to the glue pipeline, and multiple glue heads installed on the outer surface of the glue roller and connected to the hollow structure of the glue roller; the inner wall of the glue roller is provided with a glue guide groove communicating with the glue heads, and the glue roller is provided with a glue passage hole connected to the glue guide groove; the glue rotary joint is in a non-rotating state relative to the glue roller, and a sealing groove is provided at the connection position between the glue rotary joint and the glue roller, and an O-ring is provided in the sealing groove.

[0010] Furthermore, the glue head includes a hollow glue head body with a glue inlet at the top and a glue outlet at the bottom, and a pin disposed in the glue head body and connected to the top of the glue head by a compression spring; the bottom of the pin can protrude from the glue outlet and close the glue outlet.

[0011] Furthermore, the ejector pin has a cylindrical groove recessed from the top downwards, the ejector pin is cylindrical and the bottom of the ejector pin has a dispensing protrusion smaller than the diameter of the ejector pin hole; the compression spring extends into the cylindrical groove and forms a fixed connection with the bottom of the cylindrical groove; the diameter of the ejector pin hole is larger than the diameter of the dispensing port and the diameter of the dispensing protrusion hole is smaller than the diameter of the dispensing port; the bottom of the ejector pin is also provided with a wear-resistant buffer pad that forms a movable contact seal with the dispensing port.

[0012] Furthermore, the anti-tear release paper unwinding unit includes an anti-tear release paper unwinding frame, a release paper unwinding conveying roller for unwinding and conveying the output anti-tear release paper, and a release paper unwinding support back plate installed on the back of the anti-tear release paper unwinding frame to support and position the paper.

[0013] The aforementioned correction and positioning unit includes a correction servo roller and a correction and positioning block installed at both ends of the correction servo roller to limit and transport the two sides of the anti-tear release paper sheet.

[0014] The folding forming unit includes an upper folding fixing frame and a lower folding fixing frame, a folding forming clamping plate installed between the upper folding fixing frame and the lower folding fixing frame and arranged vertically, a folding guide positioning plate installed on the lower folding fixing frame and inclined upward towards the folding forming clamping plate, and a folding guide roller located above the folding forming clamping plate.

[0015] The cutting unit includes a servo roller facing the folding guide roller, a tear-resistant release paper cutter holder, a tear-resistant release paper servo cutter located above the tear-resistant release paper cutter holder and cutting the tear-resistant release paper into individual tear-resistant release paper modules, and a tracking photoelectric sensor mounted on the servo cutter and precisely positioning and tracking the marking points on the tear-resistant release paper.

[0016] The pusher unit includes a pusher for the anti-tear release paper module.

[0017] The conveying and pressing unit includes a first upper output synchronous wheel and a first lower output synchronous wheel, an upper output synchronous belt located between the first upper output synchronous wheel and the first lower output synchronous wheel, a second upper output synchronous wheel located above the first upper output synchronous wheel and a second lower output synchronous wheel located above the first lower output synchronous wheel, a lower output synchronous belt located between the second upper output synchronous wheel and the second lower output synchronous wheel and close to the top surface of the upper output synchronous belt, a paper conveying synchronous wheel and a paper conveying belt located below the upper output synchronous belt and the lower output synchronous belt to convey the paper, and a paper-applying and pressing wheel for pressing the anti-tear release paper module to the handle glue bonding position to form a pressing bond.

[0018] Furthermore, the handle unwinding unit includes a handle unwinding frame and a handle unwinding conveyor roller for unwinding and conveying the unwound handle; the handle slitting unit includes a handle cutter for slitting the handle into individual handle modules and a handle cutter seat located directly below the handle cutter; the handle conveying unit includes a handle pusher and a handle pusher drive wheel for pushing the slit individual handle modules, a handle conveyor wheel and a handle conveyor belt for conveying the handle pushed in by the handle pusher, and a handle gluing clamping wheel located above the handle conveyor belt and cooperating with the handle conveyor belt to press and flatten the handle modules.

[0019] Furthermore, both the anti-tear release paper module pusher and the handle pusher are connected to a lever shaft, and the lever shaft is connected to a lever with a bearing; both the first upper output synchronous wheel and the handle pusher drive wheel are equipped with cams via cam shafts, the end of the lever is located on the back of the cam, and the cam pushes the lever to move once around the lever shaft as the center point for each rotation, thereby pushing the anti-tear release paper module pusher and the handle pusher once.

[0020] Furthermore, the glue-applying wheel is connected to a glue-applying synchronous shaft by a chain, which drives the glue-applying wheel to rotate.

[0021] In summary, the bag-making machine of the present invention, which integrates the production of handles and the production of tear-resistant release linerboard, can simultaneously connect the production line to the bag-making machine, achieving continuous production of the entire assembly line. It also integrates the production site and production management, achieving a good effect of production resource integration. Furthermore, the automated continuous production method replaces the traditional method of manually pasting the tear-resistant release linerboard, solving many problems associated with manual pasting, reducing labor intensity, improving work efficiency, and enhancing product quality. During production, the bag-making machine first unwinds the raw paper (a whole sheet of paper) through an unwinding device, and prints the raw paper through a printing device. Simultaneously, the pasting device produces the handles and tear-resistant release linerboard. The pasting device then applies adhesive to the raw paper from both the front and back, and pastes the handles and tear-resistant release linerboard at the respective adhesive points. Finally, the raw paper is glued together and the paper bag is formed into a tear-resistant bag, which is then output and collected by a paper bag forming output device, completing the production of the tear-resistant bag. Attached Figure Description

[0022] Figure 1 This is a simplified structural diagram of a bag-making machine with inline patch for manufacturing tear-resistant bags according to Embodiment 1 of the present invention;

[0023] Figure 2 This is a simplified structural diagram of the dispensing assembly;

[0024] Figure 3 This is a simplified side view of the glue roller;

[0025] Figure 4 This is a simplified schematic diagram of the glue nozzle when it is open;

[0026] Figure 5 This is a simplified schematic diagram of the glue head when it is closed;

[0027] Figure 6 This is a simplified structural diagram of the anti-tear release paper unwinding unit, the correction and positioning unit, and the folding and forming unit of the anti-tear release paper assembly;

[0028] Figure 7 This is a schematic diagram of the cutting unit for attaching the tear-resistant release liner assembly;

[0029] Figure 8 This is a structural diagram of the pusher unit and the conveying and pressing unit of the anti-tear release paper assembly;

[0030] Figure 9 This is a structural diagram of the handle assembly;

[0031] The labels in the attached diagram are as follows: 1. Unwinding device; 2. Printing device; 3. Sticker device; 4. Paper bag forming device; 5. Paper bag forming output device; 6. Handle attaching assembly; 7. Anti-tear release paper attaching assembly; 8. Glue dispensing assembly; 9. Handle unwinding unit; 10. Handle slitting unit; 11. Handle conveying unit; 12. Anti-tear release paper unwinding unit; 13. Tracking and positioning unit; 14. Folding forming unit; 15. Cutting unit; 16. Pusher unit; 17. Conveying and pressing unit; 18. Glue roller; 19. Glue roller; 20. Glue rotary joint; 21. Glue head; 22. Glue guide groove; 23. Glue passage hole; 24. Glue inlet; 25. Glue outlet; 26. Glue head body; 27. Compression spring; 28. Ejector pin; 29. ​​Cylindrical groove; 30. Glue dispensing protrusion; 31. Wear-resistant cushioning pad; 32. Tear-resistant release paper unwinding rack; 33. Release paper unwinding conveyor roller; 34. Release paper unwinding support backplate; 35. Correction servo roller; 36. Correction fixture 37. Folding upper fixing frame; 38. Folding lower fixing frame; 39. Folding forming clamp; 40. Folding guide positioning plate; 41. Folding guide roller; 42. Servo drag roller; 43. Anti-tear release paper cutter holder; 44. Anti-tear release paper servo cutter; 45. Tracking photoelectric sensor; 46. Anti-tear release paper module pusher; 47. First upper output synchronous pulley; 48. First lower output synchronous pulley; 49. Upper output synchronous belt; 50. Second upper output synchronous pulley; 51. Second lower output synchronous pulley 52. Lower output synchronous belt; 53. Raw paper conveying synchronous pulley; 54. Raw paper conveying belt; 55. Anti-tear release paper module gluing and pressing roller; 56. Hand-held unwinding frame; 57. Hand-held unwinding conveyor roller; 58. Hand-held cutter; 59. Hand-held cutter holder; 60. Hand-held pusher; 61. Hand-held pusher drive wheel; 62. Hand-held conveyor wheel; 63. Hand-held conveyor belt; 64. Hand-held gluing and pressing roller; 65. Lever shaft; 66. Lever; 67. Cam; 68. Chain; 69. Gluing synchronous shaft. Detailed Implementation

[0032] Example 1

[0033] This embodiment 1 describes a bag-making machine with inline patch manufacturing for tear-resistant bags, such as... Figure 1As shown, the machine includes an unwinding device 1 for unwinding the base paper, a printing device 2 for printing on the base paper, a sticker device 3 for attaching handles and tear-resistant release liner to the base paper, a paper bag forming device 4 for forming paper bags from the base paper, and a paper bag forming output device 5 for outputting the formed paper bags. This bag-making machine comprises several main process steps, including base paper unwinding, base paper printing, attaching handles and tear-resistant release liner to the base paper, paper bag forming, and paper bag output and collection, achieving continuous automated production. The unwinding device, printing device, paper bag forming device, and paper bag forming output device are conventional and commonly used technologies well-known to those skilled in the art, and will not be described in further detail here. In bag-making equipment, a sticker-adding device is added to form a line for synchronous production with the bag-making machine. At the same time, the handle and anti-tear release paper are produced and pasted onto the base paper to realize the automated production process of the assembly line. The corresponding components such as the rollers, cutters, pushers, and conveyor belts in the sticker-adding device are controlled by the machine signals of the bag-making machine to run synchronously at the same speed, so as to achieve the purpose of continuous production line.

[0034] The sticker application device includes a handle-attaching component 6 for attaching handles to the base paper, an anti-tear release paper-attaching component 7 for attaching anti-tear release paper at the corresponding handle position, and an adhesive-dispensing component 8 for applying adhesive to the base paper before and after application. The handle-attaching component enables simultaneous manufacturing and output of the handles, and the anti-tear release paper-attaching component enables simultaneous manufacturing and output of the anti-tear release paper. Two adhesive-dispensing components are provided, each performing two adhesive-dispensing operations on the base paper as it passes through. The first adhesive-dispensing component applies adhesive to the base paper while the handle is being produced and conveyed to the first adhesive-dispensing position on the base paper for bonding and pressing, thus completing the production objective of attaching the handle to the base paper. Then, the base paper continues to be conveyed, and when it passes through the second adhesive-dispensing component, adhesive is applied to the handle again, while the anti-tear release paper is being produced and conveyed to the second adhesive-dispensing position for bonding and pressing, thus completing the production objective of attaching the anti-tear release paper to the handle. The process involves first attaching and pressing the handles onto the printed paper bag, then attaching and pressing the anti-tear release paper sheet, and finally shaping it into a paper bag with handles.

[0035] like Figure 9 As shown, the attached handle assembly includes a handle unwinding unit 9 for unwinding the handle, a handle slitting unit 10 for slitting the handle into individual handle modules, and a handle conveying unit 11 for conveying the individual handle modules to the original paper for attaching the handle modules. During manufacturing, the handle requires unwinding, slitting, pushing, and conveying to the original paper for attaching and pressing. The attached handle assembly's various units realize these processes.

[0036] The anti-tear release paper assembly includes an anti-tear release paper unwinding unit 12 for unwinding the anti-tear release paper, a correction and positioning unit 13 for positioning and correcting the output positions on both sides of the conveyed anti-tear release paper, a folding and forming unit 14 for folding the corrected anti-tear release paper into shape, a cutting unit 15 for precisely cutting the folded anti-tear release paper into individual anti-tear release paper modules at a fixed distance, a pusher unit 16 for pushing individual anti-tear release paper modules, and a conveying and pressing unit 17 for conveying the pushed anti-tear release paper modules to the original paper pasting anti-tear release paper module position for pressing and bonding. During manufacturing, the tear-resistant release paper module undergoes a series of processes, including unwinding, straightening, folding, and cutting of the tear-resistant release paper sheet to form individual modules. These modules are then pushed onto a conveyor belt and bonded to the base paper. This process achieves the production effect of bonding the tear-resistant release paper module to the base paper, while also enabling the paper bag production line to provide the tear-resistant release paper module for integration.

[0037] In this embodiment 1, as Figure 2 and Figure 3 As shown, the dispensing assembly includes an applicator roller 18, a glue roller 19 made of hollow stainless steel with a hollow structure and connected to the applicator roller, a glue rotary joint 20 installed at the glue inlet end of the glue roller and connected to the glue pipeline, and sixteen glue heads 21 installed on the outer surface of the glue roller and connected to the hollow structure of the glue roller; the inner wall of the glue roller is provided with glue guide grooves 22 that communicate with the glue heads, and the glue roller is provided with glue passage holes 23 that communicate with the glue guide grooves; the glue rotary joint is in a non-rotating state relative to the glue roller, and a sealing groove is provided at the connection position between the glue rotary joint and the glue roller, and an O-ring is provided in the sealing groove. During dispensing, the glue roller and glue head rotate together, driven by the gluing wheel. The glue tank supplies glue to the glue rotary joint through the glue pipeline. Then, the glue enters the hollow structure of the glue roller from the glue rotary joint. Inside the hollow structure, the glue flows through a large-diameter glue passage into the glue guide groove, and then flows from the glue guide groove into each glue head. When the glue head comes into contact with the base paper, it is pressed and opens the glue outlet, allowing glue to flow out and coat the base paper at the dispensing position, forming a dot-like glue spot, thus completing the gluing of the base paper. When the glue head separates from the base paper, the glue head is no longer pressed and closes the glue outlet. The dispensing power comes from the bag-making machine's transmission power, which is transmitted to the gluing wheel via a chain. The gluing wheel and glue roller apply glue to the base paper once per revolution, maintaining a stable position and producing a single paper bag.

[0038] This glue rotary joint is fixed and does not rotate. While the glue roller rotates, the glue rotary joint and the glue tubing remain stationary. A sealing groove and an O-ring are installed at the connection point between the glue rotary joint and the glue roller, achieving excellent sealing between them and preventing glue leakage. This O-ring features a wear-resistant structure, ensuring a long service life and resistance to deformation and wear.

[0039] In this embodiment 1, as Figure 4 and Figure 5 As shown, the glue head includes a hollow glue head body 26 with a glue inlet 24 at the top and a glue outlet 25 at the bottom, and a ejector pin 28 disposed within the glue head body and connected to the top of the glue head by a compression spring 27. The bottom of the ejector pin protrudes from the glue outlet and closes it. Glue flows into the hollow glue head body from the glue inlet. The hollow part of the glue head body is the space for glue to flow in. When the glue head contacts the base paper, the ejector pin is squeezed by the base paper and, under pressure, pushes the compression spring upward. At this time, the ejector pin is lifted and no longer closes the glue outlet, opening the outlet and allowing glue to flow out and coat the glued area on the base paper, forming a dot-like glue spot. When the glue head separates from the base paper, the ejector pin is no longer compressed, and the compression spring, under its own compression force, pushes the ejector pin back to its original position, i.e., the ejector pin returns to its original position and closes the glue outlet, thus stopping the glue dispensing.

[0040] In this embodiment 1, the ejector pin has a cylindrical groove 29 recessed from the top downwards. The ejector pin is cylindrical, and a dispensing protrusion 30, smaller than the ejector pin hole diameter, protrudes downwards from its bottom. The compression spring extends into the cylindrical groove and forms a fixed connection with the bottom of the cylindrical groove. The ejector pin hole diameter is larger than the dispensing port diameter, and the dispensing protrusion hole diameter is smaller than the dispensing port diameter. The bottom of the ejector pin is also provided with a wear-resistant buffer pad 31 that forms a movable contact seal with the dispensing port. Since the compression spring needs to be frequently deformed and compressed and reset, most of the compression spring structure is placed in the cylindrical groove. This cylindrical groove not only serves as a mounting component for the compression spring but also acts as a positioning element during compression spring deformation, preventing large deformation, swaying, or displacement of the compression spring, thereby improving the working stability of the compression spring. The dispensing protrusion at the bottom of the ejector pin is cone-shaped with a rounded bottom rather than a pointed tip. The size design of the dispensing protrusion allows it to protrude from the bottom of the glue head and contact the base paper to achieve the dispensing action. The size design of the ejector pin can close the glue outlet during sealing to achieve the purpose of sealing. Since the ejector pin and glue outlet are frequently in contact and squeezed, the designed wear-resistant buffer pad can provide wear resistance during sealing, making it less prone to wear and extending the service life of the seal.

[0041] In this embodiment 1, as Figure 6As shown, the anti-tear release paper unwinding unit includes an anti-tear release paper unwinding frame 32, an anti-tear release paper unwinding conveyor roller 33 for unwinding and conveying the output anti-tear release paper, and an anti-tear release paper unwinding support back plate 34 installed on the back of the anti-tear release paper unwinding frame for support and positioning. The anti-tear release paper is unwound through the anti-tear release paper unwinding frame and conveyed by the anti-tear release paper unwinding conveyor roller. The anti-tear release paper unwinding conveyor roller ensures stable output of the anti-tear release paper without shaking, improving conveying stability. Since the anti-tear release paper roll has a certain weight, when the anti-tear release paper unwinding frame bears the weight of this roll for unwinding, the anti-tear release paper unwinding support back plate provides a certain back support capacity, improving the anti-tear release paper roll from shaking and deviation during unwinding, achieving a good unwinding effect.

[0042] like Figure 6 As shown, the web-correcting and positioning unit includes a web-correcting servo roller 35 and web-correcting and positioning blocks 36 installed at both ends of the web-correcting servo roller to limit and transport the two sides of the tear-resistant paper sheet. After being unwound, the tear-resistant paper sheet enters the web-correcting servo roller for transport. Then, the web-correcting and positioning blocks correct and position the two sides of the tear-resistant paper sheet, accurately positioning the two sides of the paper sheet. This ensures that the two sides of the paper sheet are aligned when it enters the folding process, achieving a good folding effect.

[0043] like Figure 6 As shown, the folding forming unit includes an upper folding fixing frame 37 and a lower folding fixing frame 38, a folding forming clamping plate 39 installed between the upper folding fixing frame and the lower folding fixing frame and arranged vertically, a folding guide positioning plate 40 installed on the lower folding fixing frame and inclined upward towards the folding forming clamping plate, and a folding guide roller 41 located above the folding forming clamping plate. The upper and lower fixing frames are used to fix and install the vertically set folding forming clamps. The folding forming clamps are formed by bending one clamp to form two clamps on the left and right sides, with a gap between the two clamps to form a fold for the tear-resistant release sheet. During folding, after unwinding and correction, the tear-resistant release sheet is vertically conveyed upwards. The bottom corner of the folding guide positioning plate forms a folding seam with the center of the tear-resistant release sheet. The two sides of the tear-resistant release sheet gradually narrow inwards with the folding seam as the center of symmetry. Then, it is inserted from the bottom of the folding forming clamp to form a fold and the two sides are aligned after folding. The folded tear-resistant release sheet is then conveyed by the folding guide roller into the cutting process.

[0044] like Figure 7As shown, the cutting unit includes a servo roller 42 facing the folding guide roller, a tear-resistant release paper cutter holder 43, a tear-resistant release paper servo cutter 44 located above the tear-resistant release paper cutter holder and cutting the tear-resistant release paper into individual tear-resistant release paper modules, and a tracking photoelectric sensor 45 mounted on the servo cutter to precisely locate and track the marked points on the tear-resistant release paper. After the tear-resistant release paper is folded and formed, it is conveyed to the servo roller. The servo roller conveys the tear-resistant release paper at a uniform speed. When the tear-resistant release paper passes the position of the tear-resistant release paper servo cutter, the tracking photoelectric sensor tracks the marked points on the tear-resistant release paper and controls the tear-resistant release paper servo cutter to press down precisely and cut the tear-resistant release paper into individual tear-resistant release paper modules, completing the slitting process. The servo roller is set in the same direction as the folding guide roller.

[0045] The pusher unit includes a tear-resistant release paper module pusher 46. Each cut tear-resistant release paper module is pushed into the conveying and pressing unit by the tear-resistant release paper module pusher, where the tear-resistant release paper module and the original paper are glued and pressed together. For each paper bag manufactured, the tear-resistant release paper module pusher pushes one tear-resistant release paper module into the conveying and pressing unit. The tear-resistant release paper module pusher can firmly push each tear-resistant release paper module into the conveying and pressing unit, achieving precise and stable pushing of the tear-resistant release paper module to the designated position without deviation.

[0046] like Figure 8As shown, the conveying and pressing unit includes a first upper output synchronous wheel 47 and a first lower output synchronous wheel 48, an upper output synchronous belt 49 located between the first upper output synchronous wheel and the first lower output synchronous wheel, a second upper output synchronous wheel 50 located above the first upper output synchronous wheel and a second lower output synchronous wheel 51 located above the first lower output synchronous wheel, a lower output synchronous belt 52 located between the second upper output synchronous wheel and the second lower output synchronous wheel and close to the top surface of the upper output synchronous belt, a raw paper conveying synchronous wheel 53 and a raw paper conveying belt 54 located below the upper output synchronous belt and the lower output synchronous belt for conveying raw paper, and a raw paper module gluing and pressing wheel 55 corresponding to the raw paper conveying synchronous wheel and pressing the anti-tear release paper module to the handle glue bonding position to form a pressing and bonding. The anti-tear release paper module is conveyed onto the upper and lower output synchronous belts and then onto the raw paper conveyor belt of the paper bag machine for bonding and pressing with the raw paper, achieving synchronous production. During conveying and pressing by the conveying and pressing unit, the anti-tear release paper module is pushed between the first and second upper output synchronous pulleys by the anti-tear release paper module pusher, and is pressed down by the upper and lower output synchronous belts. This achieves the purpose of flattening and pressing the anti-tear release paper module to prevent it from tilting and ensuring stable downward conveying. This ensures that the anti-tear release paper module is in a flat state and conveys stably when it enters the raw paper conveyor belt. On the upper output synchronous belt and... Under the frictional force of the output synchronous belt, and simultaneously as the raw paper conveyor belt passes below, the anti-tear release paper module moves synchronously with the belt and is conveyed to the adhesive bonding position on the raw paper conveyor belt (the position where the second set of adhesive components applies adhesive). After the anti-tear release paper module and the raw paper reach the adhesive contact position, they quickly enter between the raw paper conveyor synchronous pulley and the anti-tear release paper module adhesive pressing roller. In this way, the dedicated anti-tear release paper module adhesive pressing roller and the raw paper conveyor synchronous pulley will press and bond the anti-tear release paper module and the paper bag tightly under pressure. In addition, the anti-tear release paper module adhesive pressing roller is made of soft silicone and has a cylinder to press downward to achieve the pressing action of the anti-tear release paper module adhesive pressing roller.

[0047] In this embodiment 1, as Figure 9As shown, the handle unwinding unit includes a handle unwinding frame 56 and a handle unwinding conveyor roller 57 for unwinding and conveying the unwound handles; the handle slitting unit includes a handle cutter 58 for slitting the handles into individual handle modules and a handle cutter seat 59 located directly below the handle cutter; the handle conveying unit includes a handle pusher 60 for pushing the slit individual handle modules and a handle pusher drive wheel 61, a handle conveyor wheel 62 for conveying the handles pushed in by the handle pusher and a handle conveyor belt 63, and a handle gluing clamping wheel 64 located above the handle conveyor belt and cooperating with the handle conveyor belt to press and flatten the handle modules. During the production of the handle, the paper sheet is unwound and output through the handle unwinding roll. It is then stably conveyed to the area below the handle cutter by the handle unwinding conveyor roller. The handle cutter senses the marked position of the paper sheet and presses down, cooperating with the handle cutter seat to cut it into individual handles. After being cut, the handle is driven by the handle pusher drive wheel to push the handle pusher into the area between the handle conveyor wheel and the handle glue pressing wheel of the handle conveyor belt (at this time, the original paper has already been coated with glue by the first set of glue dispensing components) and forms an adhesive and pressing relationship with the glue position of the original paper, thus achieving the purpose of pasting and fixing the handle to the original paper.

[0048] In this embodiment 1, both the anti-tear release paper module pusher and the handle pusher are connected to a lever shaft 65, and the lever shaft is connected to a lever 66 with a bearing. The first upper output synchronous wheel and the handle pusher drive wheel are both equipped with cams 67 via cam shafts. The end of the lever is located on the back of the cam, and each rotation of the cam pushes the lever to move once around the lever shaft, thus pushing the anti-tear release paper module pusher and the handle pusher once. For each handle paper bag produced, one anti-tear release paper module and one handle are cut. The cut handle and anti-tear release paper module are pushed into the glue bonding position by the handle pusher and the anti-tear release paper module pusher, respectively, to form an adhesive bond with the original paper. The power transmission method of the anti-tear release paper module pusher and the handle pusher is as follows: the chain drives the first upper output synchronous wheel and the handle pusher drive wheel, and then the first upper output synchronous wheel and the handle pusher drive wheel drive the cam. The cam drives the lever to move once for each rotation, and the lever drives the lever shaft to move and push the anti-tear release paper module pusher and the handle pusher once. In this way, the anti-tear release paper module and the handle can be pushed into the corresponding belt.

[0049] In this embodiment 1, the glue-applying wheel is connected to the glue-applying synchronous shaft 69 by a chain 68, which drives the glue-applying wheel to rotate.

[0050] In this embodiment 1, the bag-making machine with inline patch manufacturing of tear-resistant bags can simultaneously connect the production of handles and tear-resistant release linerboard to the bag-making machine for production, realizing continuous production of the entire assembly line. It also integrates production site and production management, achieving a good effect of production resource integration. Furthermore, the automated continuous production method replaces the traditional method of manually pasting the tear-resistant release linerboard, solving many problems associated with manual pasting, reducing labor intensity, improving work efficiency, and enhancing product quality. During production, the bag-making machine with inline patch manufacturing of tear-resistant bags first unwinds the raw paper (whole sheet) through an unwinding device, and prints the raw paper through a printing device. Simultaneously, the patching device produces the handles and tear-resistant release linerboard. The patching device then applies adhesive to the raw paper from both the front and back, and pastes the handles and tear-resistant release linerboard at the respective adhesive points. Finally, the raw paper is glued and formed into a tear-resistant bag, which is then output and collected by a paper bag forming output device, completing the production of the tear-resistant bag.

[0051] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the structure of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A bag-making machine with inline patch manufacturing of tear-resistant bags, characterized in that, It includes an unwinding device (1) for unwinding the raw paper, a printing device (2) for printing on the raw paper, a sticker device (3) for attaching handles and anti-tear release paper to the raw paper, a paper bag forming device (4) for forming paper bags from the raw paper, and a paper bag forming output device (5) for outputting the formed paper bags; the sticker device includes a handle attaching assembly (6) for attaching handles to the raw paper and an anti-tear release paper attaching assembly (7) for attaching anti-tear release paper to the corresponding handle position, and a glue dispensing assembly (8) for applying glue to the raw paper at the front and back. —The attached handle assembly includes a handle unwinding unit (9) for unwinding the handle, a handle slitting unit (10) for slitting the handle into individual handle modules, and a handle conveying unit (11) for conveying the individual handle modules to the original paper attach handle module position; —The anti-tear release paper assembly includes an anti-tear release paper unwinding unit (12) for unwinding the anti-tear release paper, a correction and positioning unit (13) for positioning and correcting the output positions on both sides of the conveyed anti-tear release paper, a folding and forming unit (14) for folding the corrected anti-tear release paper, a cutting unit (15) for precisely cutting the folded anti-tear release paper into individual anti-tear release paper modules, a pusher unit (16) for pushing the individual anti-tear release paper modules, and a conveying and pressing unit (17) for conveying the pushed anti-tear release paper modules to the original paper anti-tear release paper module pasting position for pressing and bonding.

2. A bag-making machine with inline patch manufacturing for tear-resistant bags according to claim 1, characterized in that, The dispensing assembly includes an applicator roller (18), a glue roller (19) with a hollow stainless steel structure connected to the applicator roller, a glue rotary joint (20) installed at the glue inlet end of the glue roller and connected to the glue pipeline, and multiple glue heads (21) installed on the outer surface of the glue roller and connected to the hollow structure of the glue roller; the inner wall of the glue roller is provided with a glue guide groove (22) connected to the glue heads, and the glue roller is provided with a glue passage hole (23) connected to the glue guide groove; the glue rotary joint is in a non-rotating state relative to the glue roller, and a sealing groove is provided at the connection position between the glue rotary joint and the glue roller, and an O-ring is provided in the sealing groove.

3. A bag-making machine with inline patch manufacturing for tear-resistant bags according to claim 2, characterized in that, The glue head includes a hollow glue head body (26) with a glue inlet (24) at the top and a glue outlet (25) at the bottom, and a pin (28) disposed in the glue head body and connected to the top of the glue head by a compression spring (27); the bottom of the pin can protrude from the glue outlet and close the glue outlet.

4. A bag-making machine with inline patch manufacturing for tear-resistant bags according to claim 3, characterized in that, The ejector pin has a cylindrical groove (29) recessed from the top downwards. The ejector pin is cylindrical and has a dispensing protrusion (30) at the bottom that is smaller than the ejector pin hole diameter. A compression spring extends into the cylindrical groove and forms a fixed connection with the bottom of the cylindrical groove. The ejector pin hole diameter is larger than the dispensing port diameter and the dispensing protrusion hole diameter is smaller than the dispensing port diameter. The bottom of the ejector pin is also provided with a wear-resistant buffer pad (31) that forms a movable contact seal with the dispensing port.

5. A bag-making machine with inline patch for manufacturing tear-resistant bags according to claim 4, characterized in that, The tear-resistant release paper unwinding unit includes a tear-resistant release paper unwinding frame (32), a release paper unwinding conveying roller (33) for unwinding and conveying the output tear-resistant release paper, and a release paper unwinding support back plate (34) installed on the back of the tear-resistant release paper unwinding frame to support and position the paper. The aforementioned correction and positioning unit includes a correction servo roller (35) and a correction and positioning block (36) installed at both ends of the correction servo roller and used to limit and transport the two sides of the anti-tear separation paper sheet. The folding forming unit includes an upper folding fixing frame (37) and a lower folding fixing frame (38), a folding forming clamping plate (39) installed between the upper folding fixing frame and the lower folding fixing frame and arranged vertically, a folding guide positioning plate (40) installed on the lower folding fixing frame and inclined upward towards the folding forming clamping plate, and a folding guide roller (41) located above the folding forming clamping plate; The cutting unit includes a servo roller (42) facing the folding guide roller, a tear-resistant paper cutter holder (43), a tear-resistant paper servo cutter (44) located above the tear-resistant paper cutter holder and cutting the tear-resistant paper into individual tear-resistant paper modules, and a tracking photoelectric eye (45) mounted on the servo cutter and accurately positioning and tracking the marking points on the tear-resistant paper. The pusher unit includes a tear-resistant release paper module pusher (46); The conveying and pressing unit includes a first upper output synchronous wheel (47) and a first lower output synchronous wheel (48), an upper output synchronous belt (49) located between the first upper output synchronous wheel and the first lower output synchronous wheel, a second upper output synchronous wheel (50) located above the first upper output synchronous wheel and a second lower output synchronous wheel (51) located above the first lower output synchronous wheel, a lower output synchronous belt (52) located between the second upper output synchronous wheel and the second lower output synchronous wheel and close to the top surface of the upper output synchronous belt, a paper conveying synchronous wheel (53) and a paper conveying belt (54) located below the upper output synchronous belt and the lower output synchronous belt for conveying the paper, and a paper conveying and pressing wheel (55) for pressing and bonding the anti-tear release paper module to the handle glue bonding position.

6. A bag-making machine with inline patch for manufacturing tear-resistant bags according to claim 5, characterized in that, The handle unwinding unit includes a handle unwinding frame (56) and a handle unwinding conveyor roller (57) for unwinding and conveying the unwound handles; the handle slitting unit includes a handle cutter (58) for slitting the handles into individual handle modules and a handle cutter seat (59) located directly below the handle cutter; the handle conveying unit includes a handle pusher (60) for pushing the individual handle modules after slitting and a handle pusher drive wheel (61), a handle conveyor wheel (62) for conveying the handles pushed in by the handle pusher and a handle conveyor belt (63), and a handle gluing clamping wheel (64) located above the handle conveyor belt and cooperating with the handle conveyor belt to press and flatten the handle modules.

7. A bag-making machine with inline patch for manufacturing tear-resistant bags according to claim 6, characterized in that, The anti-tear release paper module pusher and the hand pusher are both connected to a lever shaft (65), and the lever shaft is connected to a lever (66) with a bearing; the first upper output synchronous wheel and the hand pusher drive wheel are both equipped with cams (67) through cam shafts. The end of the lever is located on the back of the cam, and the cam pushes the lever to move once around the lever shaft as the center point for each rotation, thereby pushing the anti-tear release paper module pusher and the hand pusher once.

8. A bag-making machine with inline patch for manufacturing tear-resistant bags according to claim 7, characterized in that, The glue-applying wheel is connected to a glue-applying synchronous shaft (69) by a chain (68) and drives the glue-applying wheel to rotate.

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