Code spraying and die cutting device for printing and packaging

Abstract

The invention discloses a code spraying and die cutting device for printing and packaging, the code spraying and die cutting device for printing and packaging comprises a base frame arranged in the Y-axis direction, and a feeding mechanism, a code spraying mechanism, a die cutting mechanism and a storage mechanism are sequentially arranged on the base frame in the material conveying direction. The second elastic guide sheet enables the conveyed materials to abut against and be attached to the surface of the second conveying roller, so that an independent tension area is formed between the guide structure and the die cutting mechanism, and the influence of the feeding mechanism and the storage mechanism on the material conveying, code spraying and die cutting machining area is reduced. The tension adjusting structure is arranged between the code spraying mechanism and the die cutting structure to adjust the tension degree of materials before die cutting, the die cutting effect is ensured, the visual positioning system positions the conveying position of the materials, and information is transmitted in time for the materials with deviation to control the feeding structure to adjust the feeding position of the materials.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of code spraying and die cutting equipment, in particular to a code spraying and die cutting device for printing and packaging. BACKGROUND

[0002] Full-automatic slitting and stripping machines can achieve accurate slitting and stripping of various rolls (such as paper, film, aluminum foil, etc.), and are widely used in papermaking, printing, packaging, tobacco and other industries. In the production of cigarette packaging rolls, full-automatic slitting and stripping machines are mainly used to process packaging paper and aluminum foil paper. The inner and outer packaging paper of cigarettes needs to be processed into paper of a specific width and length by a slitting and stripping machine to meet the needs of packaging machinery. These papers need to have high flatness and precision to ensure the appearance and sealing of the packaging. Some cigarette packaging uses aluminum foil paper as an inner liner or decorative layer, which also needs to be processed into the appropriate size and shape by a slitting and stripping machine. Special attention should be paid to avoiding scratches and creases during slitting and stripping of aluminum foil paper to ensure its good barrier property and aesthetic appearance.

[0003] The existing equipment can ensure the stability of code spraying and die cutting when printing and packaging such as paper rolls are code sprayed and die cut. For example, the invention disclosed in the authorized announcement No. CN110091583B discloses a code spraying device for a packaging bag printing and die cutting all-in-one machine and its installation method. The code spraying device uses a tensioning mechanism to keep the packaging paper roll in a tensioned state when it is conveyed between the winding device and the die cutting device, avoiding wrinkles in the packaging paper roll and ensuring the code spraying effect of the code spraying machine.

[0004] However, the invention still has some defects. During the process of pulling the printing and packaging paper roll to the die cutting or code spraying area, although the tensioning mechanism can make the packaging paper roll taut, the edges of the packaging paper roll are still prone to overlapping, which affects the subsequent die cutting and code spraying and winding processes, such as uneven cutting, affecting the actual code spraying effect or the code spraying area, and causing the edges of the packaging paper roll to overlap during winding, resulting in deformation during winding and affecting the quality of winding. SUMMARY

[0005] To solve the technical problems in the background art and meet the actual needs, the present application proposes a code spraying and die cutting device for printing and packaging, which is described as follows: A coding and die-cutting device for printing and packaging, comprising a base frame arranged along the Y-axis direction, a feeding mechanism, a coding mechanism, a die-cutting mechanism, and a storage mechanism arranged on the base frame in sequence along the material conveying direction, a guide mechanism provided between the feeding mechanism and the coding mechanism, a steering structure provided on one side of the feed inlet of the guide mechanism, a first elastic guide sheet provided on the steering structure, and a material receiving device provided between the steering mechanism and the feeding mechanism; A conveying channel is provided along the length direction of the base frame, the coding mechanism is provided on the side of the conveying channel, a die-cutting structure is provided at the end of the conveying channel, a tension adjustment structure is provided between the coding mechanism and the die-cutting structure, the die-cutting mechanism includes a die-cutting bracket and a main die-cutting knife and a slitting knife shaft provided on the die-cutting bracket, and a visual positioning system is provided at the feed port of the die-cutting bracket; The storage mechanism includes a plurality of independent winding devices arranged in a straight line, and a plurality of lifting devices are provided between the winding devices and the die-cutting mechanism.

[0006] As an improvement of the above-mentioned scheme, the feeding mechanism includes a feeding bracket arranged along the X-axis direction, a feeding shaft arranged on the feeding bracket and a first driving motor, the output end of the first driving motor is connected to the feeding shaft, and the material conveying direction of the base frame is perpendicular to the conveying direction of the feeding mechanism.

[0007] As an improvement of the above solution, the material receiving device includes a material receiving bracket, a material receiving cylinder arranged on the material receiving bracket, and a pneumatic adsorption component arranged below the material receiving cylinder; The pneumatic adsorption component includes a metal plate, a plurality of adsorption holes arranged along the thickness direction of the metal plate, and a vacuum generator arranged under the metal plate.

[0008] As an improvement to the above solution, the guide mechanism includes a screw structure arranged along the X-axis direction and a movable base penetrated on the screw structure, the screw structure includes a screw and guide rods arranged on both sides of the screw, and the screw and guide rods are both penetrated in the horizontal direction of the movable base; The steering structure includes a steering bracket and a steering roller arranged on the movable base. The inclination angle of the steering roller is aligned with the bisector of the angle between the X-axis and the Y-axis. A first elastic guide piece is provided on the side of the movable base corresponding to the steering roller. The first elastic guide piece is bent in an arc shape and the raised position of the arc surface is in contact with the steering roller.

[0009] As an improvement to the above solution, a static electricity removal device is provided near the feeding port of the conveying channel, and the static electricity removal device includes a static electricity removal brush and a first conveying roller arranged in sequence along the material conveying direction, and the roller surface of the first conveying roller is in contact with the surface of the conveying channel; The conveying channel is provided with a second conveying roller at the lower station corresponding to the coding mechanism, and a second elastic guide piece is provided on the outer side of the second conveying roller. The second elastic guide piece is bent in an arc shape and the raised position of the arc surface is in contact with the second conveying roller.

[0010] As an improvement of the above solution, the coding mechanism includes a gantry arranged above the conveying channel and a plurality of coding devices arranged on the gantry, and the number of the coding devices is consistent with the number of strips of material cut.

[0011] As an improvement to the above solution, the top of the die-cutting bracket is provided with an extension bracket extending toward the upper workstation, and the extension bracket is provided with a visual positioning system, which includes a line array camera and a coaxial light source.

[0012] As an improvement to the above-mentioned scheme, the tension adjustment structure includes a first adjustment bracket and a second adjustment bracket arranged parallel to each other, adjustment rollers arranged at equal intervals along the length direction of the first adjustment bracket and the second adjustment bracket, and a first linear drive mechanism and a second linear drive mechanism for driving the first adjustment bracket and the second adjustment bracket to move toward or away from each other.

[0013] As an improvement to the above solution, the winding device includes a winding roller and a second drive motor, and the output end of the second drive motor is connected to the axis of the winding roller; The lifting device includes a plurality of lifting rollers arranged at equal intervals along the Z-axis direction, and a material-feeding roller group is provided at the upper working position of the lifting rollers, and the material-feeding roller group consists of a plurality of material-feeding rollers.

[0014] The beneficial effects of the present invention are as follows: the first elastic guide piece causes the material being conveyed to press against the surface of the steering roller, and the second elastic guide piece causes the material being conveyed to press against the surface of the second conveying roller, thereby forming an independent tension area between the guide structure and the die-cutting mechanism, reducing the influence of the feeding mechanism and the storage mechanism on the material conveying, coding and die-cutting processing area, and adjusting the tension of the material before die-cutting by setting a tension adjustment structure between the coding mechanism and the die-cutting structure to ensure the die-cutting effect. The visual positioning system locates the conveying position of the material, and timely transmits information to the feeding structure to adjust the material feeding position for the offset material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top view of the coding and die-cutting device of the present invention.

[0016] Figure 2 It is a schematic diagram of the side structure of the feeding mechanism of the present invention.

[0017] Figure 3It is a schematic diagram of the side structure of the base frame part of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the elastic guide piece of the present invention.

[0019] Among them: 1-base frame, 2-feeding mechanism, 21-feeding bracket, 22-feeding shaft, 23-first drive motor, 3-inkjet printing mechanism, 31-gantry, 32-inkjet printing device, 4-storage mechanism, 41-winding device, 411-winding roller, 412-second drive motor, 42-lifting device, 421-lifting roller, 422-feeding roller, 5-die-cutting mechanism, 51-die-cutting bracket, 52-main die-cutting knife, 53-slitting knife shaft, 54-extension bracket, 55-visual positioning system, 6-guide mechanism, 61-screw, 62-guide Steering rod, 63-movable base, 64-steering structure, 641-steering bracket, 642-steering roller, 643-first elastic guide plate, 7-material receiving device, 71-material receiving bracket, 72-material receiving cylinder, 73-pneumatic adsorption component, 8-tension adjustment structure, 81-first adjustment bracket, 82-second adjustment bracket, 83-adjusting roller, 84-first linear drive mechanism, 85-second linear drive mechanism, 9-static removal device, 91-static removal brush, 92-first conveying roller, 93-second conveying roller, 94-second elastic guide plate. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention in conjunction with the accompanying drawings and relevant embodiments. The implementation of the present invention is not limited to the following embodiments, and the present invention relates to the relevant necessary components in this technical field, which should be regarded as the common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0021] A coding and die-cutting device for printing and packaging, comprising a base frame 1 arranged along the Y-axis direction, a feeding mechanism 2, a coding mechanism 3, a die-cutting mechanism 5, and a storage mechanism 4 arranged on the base frame 1 in sequence along the material conveying direction, a guide mechanism 6 being provided between the feeding mechanism 2 and the coding mechanism 3, a steering structure 64 being provided on one side of the feed inlet of the guide mechanism 6, a first elastic guide piece 643 being provided on the steering structure 64, and a material receiving device 7 being provided between the steering mechanism and the feeding mechanism 2; In the technical solution of the feeding structure of the present invention, the feeding mechanism 2 includes a feeding bracket 21 arranged along the X-axis direction, a feeding shaft 22 arranged on the feeding bracket 21, and a first drive motor 23. The output end of the first drive motor 23 is connected to the feeding shaft 22. The material conveying direction of the base frame 1 is perpendicular to the conveying direction of the feeding mechanism 2, and the material conveying direction of the feeding bracket 21 is perpendicular to the material conveying direction of the base frame 1, thereby forming an L-shaped device body. The space inside the device body can be used as a processing station for the operator; A guide mechanism 6 is provided at the connection position between the base frame 1 and the loading bracket 21. The guide mechanism 6 includes a screw rod 61 structure arranged along the X-axis direction and a movable base 63 penetrated on the screw rod 61 structure. The screw rod 61 structure includes a screw rod 61 and guide rods 62 arranged on both sides of the screw rod 61. The screw rod 61 and the guide rods 62 are both penetrated in the horizontal direction of the movable base 63. In the technical solution of the guide mechanism 6, a steering structure 64 is provided on the movable base 63, and the material is converted into a Y-axis direction for transportation through the steering structure 64. A rotating motor is provided at one end of the screw rod 61. The output end of the rotating motor is connected to the screw 61. Driven by the rotating motor, the screw 61 can drive the movable base 63 to move along the X-axis direction, thereby realizing the precise positioning of the material in the X-axis direction; the setting of the guide rod 62 ensures the stability of the movable base 63 during the movement, preventing it from offsetting or shaking. The design of the steering structure 64 cleverly converts the material from the X-axis direction to the Y-axis direction for transportation, ensuring that the material can smoothly enter the subsequent inkjet printing mechanism 3 for processing.

[0022] Furthermore, the movable base 63 is provided with the steering structure 64, which includes a steering bracket 641 and a steering roller 642 provided on the movable base 63. The inclination angle of the steering roller 642 is aligned with the bisector of the angle between the X-axis and the Y-axis. A first elastic guide piece 643 is provided on the side of the movable base 63 corresponding to the steering roller 642. The first elastic guide piece 643 is bent in an arc shape, and the convex position of the arc surface contacts and fits with the steering roller 642. A spring is provided between the first elastic guide piece 643 and the movable base 63 for contacting and fitting the first elastic guide piece 643 with the steering roller 642. It should be noted that the first elastic guide plate 643 compresses the material against the surface of the steering roller 642, thereby separating the material surface tension along the steering roller 642 as a base point. This creates an independent tension zone at the upper station of the steering roller 642, preventing the loose material tension generated during roll change and loading from affecting the material accuracy in the inkjet printing and die-cutting areas. The curved design of the first elastic guide plate 643 not only improves the contact with the steering roller 642 but also provides effective guidance and cushioning for the material as it passes, further ensuring the stability of the material during the steering process. In addition, the steering bracket 641 firmly supports the steering roller 642, preventing it from deflecting or damaging during long-term operation, thereby extending the overall service life of the device. Through this design, material can be smoothly and accurately converted from the X-axis direction to the Y-axis direction for conveying. The inclination angle of the steering bracket 641 can be adjusted according to the angle between the base frame 1 and the loading bracket 21.

[0023] It should be noted that a material receiving device 7 is provided between the steering mechanism and the feeding mechanism 2. The material receiving device 7 includes a material receiving bracket 71, a material receiving cylinder 72 arranged on the material receiving bracket 71, and a pneumatic adsorption component 73 arranged below the material receiving cylinder 72. The pneumatic adsorption component 73 includes a metal plate, a plurality of adsorption holes penetrated along the thickness direction of the metal plate, and a vacuum generator arranged below the metal plate.

[0024] When the end of the material is transported to the receiving position by the steering mechanism, the metal plate fits tightly against the surface of the material, and the vacuum generator is turned on at the same time, generating adsorption force on the material through the adsorption holes, firmly adsorbing the material on the metal plate, and the material is joined and compacted by the receiving cylinder 72. This not only improves the degree of automation of material transportation, but also ensures the stability and accuracy of the material during the receiving process, avoiding errors and damage caused by manual operation. At the same time, the pneumatic adsorption component 73 has a strong and uniform adsorption force, which can adapt to materials of different materials and thicknesses, thereby improving the applicability and flexibility of the device.

[0025] In the technical solution of the base frame 1 of the present invention, a conveying channel is provided along the length direction of the base frame 1, the coding mechanism 3 is provided on the side of the conveying channel, a die-cutting structure is provided at the end of the conveying channel, a tension adjustment structure 8 is provided between the coding mechanism 3 and the die-cutting structure, the die-cutting mechanism 5 includes a die-cutting bracket 51 and a main die-cutting knife 52 and a slitting knife shaft 53 provided on the die-cutting bracket 51, and a visual positioning system 55 is provided at the feed port of the die-cutting bracket 51; In the technical solution of the coding mechanism 3, the coding mechanism 3 includes a gantry 31 arranged above the conveying channel and a plurality of coding devices 32 arranged on the gantry 31. The number of the coding devices 32 is consistent with the number of strips of material cut. After the material is converted by the guide mechanism 6, it passes through the coding device 32 for coding. In one of the technical solutions, multiple coding devices 32 can be set on the gantry 31, and each coding device 32 can be independently controlled to ensure that the corresponding information can be accurately printed on different numbers of materials, and the stability and accuracy of the coding device 32 during the coding process can be ensured. In another technical solution, a single coding device 32 is set on the gantry 31. The coding device 32 is set on the gantry 31 and moves along the X-axis direction to code multiple positions of the material respectively. Through the coding mechanism 3, automatic coding of the material is realized, thereby improving production efficiency.

[0026] It should be noted that a static electricity removal device 9 is provided near the feeding port of the conveying channel. The static electricity removal device 9 includes a static electricity removal brush 91 and a first conveying roller 92 arranged in sequence along the material conveying direction. The roller surface of the first conveying roller 92 is in contact with the surface of the conveying channel. The anti-static brush 91 effectively removes static electricity accumulated during the transportation of the material by contacting the surface of the material, thereby avoiding the influence of static electricity on the coding effect and die-cutting accuracy, ensuring the stability of the material before entering the coding and die-cutting process, and further improving the overall production quality and efficiency. In addition, the fitting design of the first conveying roller 92 and the surface of the conveying channel not only ensures the smooth transportation of the material, but also helps to maintain the cleanliness of the conveying channel, reducing the interference of impurities generated during the material transportation process on subsequent processes.

[0027] It should be noted that the conveying channel is provided with a second conveying roller 93 at the lower work station corresponding to the coding mechanism 3, and a second elastic guide piece 94 is provided on the outer side of the second conveying roller 93. The second elastic guide piece 94 is bent in an arc shape and the raised position of the arc surface is in contact with the second conveying roller 93. The structure of the second elastic guide piece 94 is consistent with the structure and function of the first elastic guide piece 643, providing effective guiding and buffering functions when the material passes through. The first elastic guide piece 643 and the second guide piece form an independent tension area between the guide structure and the die-cutting mechanism 5, reducing the influence of the feeding mechanism 2 and the storage mechanism 4 on the material conveying coding and die-cutting processing area, so that the material maintains a stable tension during the coding and die-cutting process, avoiding the problem of coding ambiguity or die-cutting deviation caused by uneven tension, and improving the processing accuracy; at the same time, the design of the second elastic guide piece 94 also enhances the adaptability of the device, which can cope with materials of different thicknesses and materials, and ensure the consistency and stability of processing.

[0028] In the technical solution of the die-cutting mechanism 5 of the present invention, the die-cutting mechanism 5 includes a die-cutting bracket 51 and a main die-cutting knife 52 and a slitting knife shaft 53 arranged on the die-cutting bracket 51. The feed port position of the die-cutting bracket 51 is provided with a visual positioning system 55. The die-cutting mechanism 5 adopts a round-to-round rotary die-cutting method, which is more suitable for continuous high-speed production than flat-to-flat, with small impact, low noise and high precision.

[0029] It should be noted that the visual positioning system 55 can accurately position the material to ensure the accuracy of the die-cutting position. The round-to-round rotary die-cutting method makes the die-cutting process more efficient and stable, which not only improves production efficiency but also effectively reduces production costs. In addition, the design of the die-cutting mechanism 5 also takes into account the replacement and maintenance of wearing parts, making the operation easier and extending the service life of the equipment.

[0030] The top of the die-cutting bracket 51 is provided with an extension bracket 54 extending toward the upper workstation, and the extension bracket 54 is provided with a visual positioning system 55, and the visual positioning system 55 includes a linear array camera and a coaxial light source. In the technical solution of the visual positioning system 55 of the present invention, a high-resolution linear array camera + dual-light source lighting architecture is adopted, and through sub-pixel edge detection algorithm and EtherCAT real-time communication, dynamic tracking of the edge of the paper / aluminum foil coil with an accuracy of ±0.05mm is achieved, and the offset is output to the guide mechanism 6 and the inkjet die-cutting system, so as to solve the problem of material deviation and positioning in high-speed production.

[0031] The storage mechanism 4 includes a plurality of independent winding devices 41 arranged in a straight line. The unloading area and the operating surface are designed on the same side of the equipment. A plurality of lifting devices 42 are provided between the winding device 41 and the die-cutting mechanism 5. The lifting devices 42 are used to lift the slit materials along the Z-axis direction and then continue to convey them along the Y-axis direction. During the process of conveying the slit materials along the Y-axis, they are successively wound by the plurality of winding devices 41 arranged in a straight line. A tension adjustment structure 8 is provided between the inkjet printing mechanism 3 and the die-cutting mechanism. In the technical solution of the tension structure, the tension adjustment structure 8 includes a first adjustment bracket 81 and a second adjustment bracket 82 arranged in parallel with each other, adjustment rollers 83 arranged at equal intervals along the length direction of the first adjustment bracket 81 and the second adjustment bracket 82, and a first linear drive mechanism 84 and a second linear drive mechanism 85 for driving the first adjustment bracket 81 and the second adjustment bracket 82 to move toward or away from each other; The material before die-cutting is wound through the tension adjustment structure 8 after coding and then enters the die-cutting mechanism 5. Specifically, the first adjustment bracket 81 and the second adjustment bracket 82 are both provided with an adjustment roller 83. The material is wound in a Z-shape on the adjustment rollers 83 on the first adjustment bracket 81 and the second adjustment bracket 82. The first adjustment bracket 81 and the second adjustment bracket 82 are driven toward or away from each other by the first linear drive mechanism 84 and the second linear drive mechanism 85, respectively, so as to adjust the tension of the material and ensure that the material maintains a stable tension state during the coding and die-cutting process, avoids deformation or breakage of the material due to excessive or insufficient tension, and ensures the accuracy and quality of printing and packaging. Through the visual positioning system 55, precise control and monitoring of various links such as material tension adjustment and die-cutting are achieved, which greatly improves production efficiency and product quality.

[0032] In the technical solution of the winding device 41 of the present invention, the winding device 41 includes a winding roller 411 and a second drive motor 412, and the output end of the second drive motor 412 is connected to the axis of the winding roller 411; The lifting device 42 includes several lifting rollers 421 arranged at equal intervals along the Z-axis direction, and a group of material-discharging rollers 422 is provided at the upper work station of the lifting rollers 421. The group of material-discharging rollers 422 consists of several material-discharging rollers 422. The material-discharging rollers 422 are used to convey the material in an offset manner and swing to a position aligned with the winding roller 411 of the winding device 41 to ensure that the material can be smoothly and neatly wound on the winding roller 411. At the same time, the second drive motor 412 drives the winding roller 411 to rotate to realize the winding operation of the material.

[0033] The above description is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A coding and die-cutting device for printing and packaging, characterized in that: The invention comprises a base frame (1) arranged along the Y-axis direction, wherein a feeding mechanism (2), a coding mechanism (3), a die-cutting mechanism (5) and a storage mechanism (4) are sequentially arranged on the base frame (1) along the material conveying direction, a guide mechanism (6) is arranged between the feeding mechanism (2) and the coding mechanism (3), a steering structure (64) is arranged on one side of the feeding port of the guide mechanism (6), a first elastic guide piece (643) is arranged on the steering structure (64), and a material receiving device (7) is arranged between the steering mechanism and the feeding mechanism (2); A conveying channel is provided along the length direction of the base frame (1), the coding mechanism (3) is provided on the side of the conveying channel, a die-cutting structure is provided at the end of the conveying channel, a tension adjustment structure (8) is provided between the coding mechanism (3) and the die-cutting structure, the die-cutting mechanism (5) includes a die-cutting bracket (51) and a main die-cutting knife (52) and a slitting knife shaft (53) provided on the die-cutting bracket (51), and a visual positioning system (55) is provided at the feed port position of the die-cutting bracket (51); The storage mechanism (4) comprises a plurality of independent winding devices (41) arranged in a straight line, and a plurality of lifting devices (42) are provided between the winding devices (41) and the die-cutting mechanism (5).

2. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: The feeding mechanism (2) comprises a feeding bracket (21) arranged along the X-axis direction, a feeding shaft (22) arranged on the feeding bracket (21), and a first drive motor (23); the output end of the first drive motor (23) is connected to the feeding shaft (22); and the material conveying direction of the base frame (1) is perpendicular to the conveying direction of the feeding mechanism (2).

3. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: The material receiving device (7) comprises a material receiving bracket (71), a material receiving cylinder (72) arranged on the material receiving bracket (71), and a pneumatic adsorption component (73) arranged below the material receiving cylinder (72); The pneumatic adsorption component (73) comprises a metal plate, a plurality of adsorption holes provided along the thickness direction of the metal plate, and a vacuum generator provided below the metal plate.

4. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: The guide mechanism (6) includes a screw rod (61) structure arranged along the X-axis direction and a movable base (63) passing through the screw rod (61) structure, the screw rod (61) structure includes a screw rod (61) and guide rods (62) arranged on both sides of the screw rod (61), and the screw rod (61) and the guide rods (62) are both passed through the movable base (63) in the horizontal direction; The steering structure (64) includes a steering bracket (641) and a steering roller (642) arranged on the movable base (63). The inclination angle of the steering roller (642) is aligned with the bisector of the angle between the X-axis and the Y-axis. A first elastic guide piece (643) is provided on one side of the movable base (63) corresponding to the steering roller (642). The first elastic guide piece (643) is bent in an arc shape, and the raised position of the arc surface contacts and fits with the steering roller (642).

5. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: A static-eliminating device (9) is provided near the feeding port of the conveying channel, and the static-eliminating device (9) comprises a static-eliminating brush (91) and a first conveying roller (92) sequentially arranged along the material conveying direction, wherein the roller surface of the first conveying roller (92) is in contact with the surface of the conveying channel; A second conveying roller (93) is provided at the lower station of the conveying channel corresponding to the coding mechanism (3), and a second elastic guide piece (94) is provided on the outer side of the second conveying roller (93). The second elastic guide piece (94) is curved in an arc shape, and the convex position of the arc surface contacts and fits with the second conveying roller (93).

6. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: The coding mechanism (3) comprises a gantry (31) arranged above the conveying channel and a plurality of coding devices (32) arranged on the gantry (31), wherein the number of the coding devices (32) is consistent with the number of strips of material cut.

7. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: An extension bracket (54) extending toward the upper workstation is provided at the top end of the die-cutting bracket (51), and a visual positioning system (55) is provided on the extension bracket (54). The visual positioning system (55) includes a linear array camera and a coaxial light source.

8. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: The tension adjustment structure (8) comprises a first adjustment bracket (81) and a second adjustment bracket (82) arranged parallel to each other, adjustment rollers (83) arranged at equal intervals along the length direction of the first adjustment bracket (81) and the second adjustment bracket (82), and a first linear drive mechanism (84) and a second linear drive mechanism (85) driving the first adjustment bracket (81) and the second adjustment bracket (82) to move toward or away from each other.

9. The coding and die-cutting device for printing and packaging according to claim 1, characterized in that: The winding device (41) comprises a winding roller (411) and a second drive motor (412), wherein the output end of the second drive motor (412) is connected to the axis of the winding roller (411); The lifting device (42) includes a plurality of lifting rollers (421) arranged at equal intervals along the Z-axis direction, and a material-dispensing roller (422) group is provided at the upper working position of the lifting rollers (421), and the material-dispensing roller (422) group is composed of a plurality of material-dispensing rollers (422).

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