A multi-stage printing die-cutting apparatus

Abstract

This utility model relates to the field of printing and die-cutting technology, and more particularly to a multi-stage printing and die-cutting equipment, comprising: a base plate and a wall panel mounted on the base plate; a dust removal module mounted on the wall panel; a printing module mounted on the base plate along its length, with one end fixedly connected to the wall panel, the printing module including multiple printing components spaced apart on the base plate along its length; a position adjustment component mounted on the base plate, positioned downstream of the printing module in the production direction; and a die-cutting module mounted on the position adjustment component, including multiple die-cutting components, the die-cutting components reciprocating linearly along the production direction on the position adjustment component; wherein the length direction of the base plate is the same as the production direction. This utility model can replace printing modules for various printing methods and combine them with die-cutting on the same equipment, improving the matching accuracy of printing and die-cutting, and achieving multi-layer printing effects.

Description

Technical Field

[0001] This utility model relates to the field of printing and die-cutting technology, and in particular to a multi-stage printing and die-cutting device. Background Technology

[0002] Multi-level printing refers to equipment that integrates multiple printing units, which can sequentially print single or multiple colors on the substrate to achieve complex graphic effects; die-cutting is the process of using a mold to cut the printed material to obtain a specific shape or achieve partial peeling. Therefore, multi-level printing and die-cutting equipment includes multiple printing stations arranged sequentially along the production process and one die-cutting station, while the production direction of the equipment refers to the processing path direction in which the substrate material moves continuously.

[0003] In existing technologies, the positional relationship between the printing module and the die-cutting module is usually fixed or can only be coarsely adjusted. The die-cutting module is rigidly mounted on the downstream base plate or frame, and the relative distance between it and the upstream printing components is fixed. When it is necessary to adjust the registration accuracy of printing and die-cutting, it can often only be achieved by complexly adjusting multiple tension rollers or finely adjusting the mounting base of each die-cutting module. The process is cumbersome and has limited accuracy. As a result, when the equipment is dealing with different product specifications or mechanical wear after long-term operation, it is difficult to make quick, linear, and accurate fine adjustments to the phase between the printed pattern and the die-cutting blade position.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] This invention provides a multi-stage printing and die-cutting equipment, which integrates multiple interchangeable printing modules and die-cutting modules to achieve synchronous printing and die-cutting, thereby improving the overall processing accuracy.

[0006] This utility model provides a multi-stage printing and die-cutting device, comprising: The base plate, and the wall panels mounted on the base plate; The dust removal module is installed on the wall panel; A printing module is installed on the base plate along the length of the base plate, and one end is fixedly connected to the wall panel. The printing module includes multiple printing components, which are spaced apart on the base plate along the length of the base plate. A position adjustment component is mounted on the base plate and positioned downstream of the production direction of the printing module; A die-cutting module, mounted on the position adjustment component, includes multiple die-cutting components, which reciprocate linearly along the production direction on the position adjustment component; The length direction of the base plate is the same as the production direction.

[0007] Furthermore, a flipping frame is provided on the wall panel, and multiple paper guide rollers are provided on the flipping frame for rotating the product.

[0008] Furthermore, a support frame is provided on the side of the base plate away from the wall panel, and one end of the printing module is mounted on the support frame.

[0009] Furthermore, the printing assembly includes a printing plate located above the base plate, with one end of the printing plate connected to the wall panel and the other end connected to the support frame, and the printing plate moving in a straight line in a direction away from or towards the wall panel.

[0010] Furthermore, the printing assembly also includes multiple rollers located above the printing plate, with one end of each roller rotatably connected to the wall panel and the other end rotatably connected to the support frame.

[0011] Furthermore, a slide rail is provided on the side of the printing plate near the base plate. The slide rail connects the wall panel and the support frame. A slider is provided on the slide rail. The printing plate is fixedly connected to the slider. The slider drives the printing plate to move in a straight line in a direction away from or towards the wall panel.

[0012] Furthermore, a correction component is provided on the wall panel for adjusting the product.

[0013] Furthermore, a corona discharge assembly is installed on the wall panel and positioned along the production direction on the side of the printing module away from the die-cutting module.

[0014] Furthermore, a tension sensor is installed on the wall panel and positioned in the production direction.

[0015] Furthermore, the printing components in the printing module include one of flexographic printing, offset printing, and screen printing.

[0016] The following technical effects can be achieved through the technical solution of this utility model: By setting up a position adjustment component that carries and drives the die-cutting module to reciprocate linearly along the production direction, the problems of adjustment difficulties and insufficient registration accuracy caused by the fixed relative positions of the printing module and the die-cutting module are effectively solved. This significantly improves the production flexibility of the equipment and its adaptability to products with different precision requirements. By setting the printing module as a modular unit that is compatible with flexographic printing, offset printing and screen printing, it can be flexibly replaced according to needs, improving the flexibility of equipment use and expanding the application range. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the multi-stage printing and die-cutting equipment in the embodiments of this utility model; Figure 2 This is a schematic diagram of the printing module in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the flipping frame in an embodiment of this utility model; Figure 4 This is a partial structural diagram of the printing module in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the printing component in an embodiment of the present invention; Figure 6 This is a schematic diagram of the die-cutting module in an embodiment of the present invention.

[0019] Reference numerals: 1. Base plate; 11. Wall panel; 12. Support frame; 2. Dust removal module; 3. Printing module; 31. Printing assembly; 311. Printing plate; 312. Roller; 313. Slide rail; 314. Slider; 4. Position adjustment assembly; 5. Die-cutting module; 51. Die-cutting assembly; 6. Turning frame; 61. Guide roller; 7. Correction assembly; 8. Corona discharge assembly; 9. Tension sensor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] This utility model provides a method such as Figures 1 to 6 The multi-stage printing and die-cutting equipment shown includes: Base plate 1, and wall panel 11 installed on base plate 1; Dust removal module 2 is installed on wall panel 11; The printing module 3 is installed on the base plate 1 along the length of the base plate 1, and one end is fixedly connected to the wall panel 11. The printing module 3 includes a plurality of printing components 31, which are spaced apart on the base plate 1 along the length of the base plate 1. Position adjustment component 4 is installed on base plate 1 and is located downstream of the production direction of printing module 3; The die-cutting module 5 is installed on the position adjustment component 4 and includes multiple die-cutting components 51. The die-cutting components 51 reciprocate linearly along the production direction on the position adjustment component 4. The base plate 1 is laid along the production direction, with its length direction aligned with the production direction.

[0023] The specific working principle of this embodiment is as follows: The equipment is built on a rigid base plate 1. The length of the base plate 1 is the production direction for the printing material, such as roll paper or film, to travel and be processed. A wall panel 11 is vertically installed on one side of the base plate 1 along its length, forming the main lateral support structure of the equipment. A dust removal module 2 is installed on the wall panel 11. The dust removal module 2 typically includes components such as an electrostatic eliminator and an air knife, used to clean the surface of the printing material before it enters the printing station, removing dust and static electricity to ensure printing quality. A printing module 3 is installed along the length of the base plate 1. One end of the printing module 3 is fixedly connected to the wall panel 11 for stable support. The printing module 3 includes multiple independent printing units. The components 31 are arranged at intervals along the length of the base plate 1. Each printing component 31 is responsible for printing a color or a special effect such as spot color or varnish, and together they realize multi-level and multi-color printing operations. Downstream of the printing module 3, a position adjustment component 4 is installed on the base plate 1. The die-cutting module 5 is installed on the position adjustment component 4. The die-cutting module 5 includes at least one die-cutting component 51. The position adjustment component 4 can drive the entire die-cutting module 5 it carries, or drive at least one die-cutting component 51 to make linear reciprocating motion along the production direction, thereby realizing the overall and linear adjustment of the relative position of the die-cutting station with respect to all the completed printing patterns upstream.

[0024] The position adjustment component 4 may include two high-precision linear guides parallel to each other on the base plate 1. The base of the die-cutting module 5 is connected to the linear guides via a slider 314. The drive part may be a ball screw pair driven by a servo motor. After receiving the command from the control system, the servo motor drives the ball screw to rotate, thereby causing the die-cutting module 5, which is fixed to the screw nut, to slide along the linear guide, realizing closed-loop position control. In scenarios with higher speed and higher precision requirements, the position adjustment component 4 may be directly driven by a linear motor. The coil of the linear motor is fixed on the base plate 1, and the magnetic rail is fixed on the base of the die-cutting module 5. By controlling the current, an electromagnetic thrust is directly generated to drive the die-cutting module 5 to perform linear motion, resulting in faster response and higher precision. The position adjustment component 4 also includes a reliable locking mechanism. For example, clamping blocks are set on both sides of the base of the die-cutting module 5. When the position is adjusted to the correct position, the clamping blocks are driven by a cylinder or manual bolt to make the clamping blocks fit tightly against the side reference surface of the linear guide and fix them, preventing the equipment from shifting during high-speed die-cutting vibration and ensuring processing stability.

[0025] The die-cutting assembly 51 can be a flatbed die-cutting machine, including an upper die-cutting plate and a lower die-cutting plate. The entire flatbed die-cutting machine is installed as a whole unit on the position adjustment assembly 4. The die-cutting assembly 51 can also be a rotary die-cutting unit, including a die-cutting roller with a cutting edge and a smooth anvil roller, which is installed on the sliding platform of the position adjustment assembly 4 through its own frame.

[0026] Based on the above embodiments, a hot air box can also be installed below the printing assembly 31 and above the base plate 1 to heat the printing substrate, thereby improving the efficiency of multi-stage printing and resulting in better printing quality. Display screens and operation buttons can also be installed at corresponding positions on the printing module 3 and the die-cutting module 5, allowing for timely viewing and adjustment of equipment operating parameters.

[0027] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, a flipping frame 6 is installed on the wall panel 11. The bottom of the flipping frame 6 can be fixed or adjustablely installed on the wall panel 11 by bolts, positioning pins or slider 314 guide rail mechanism. Multiple paper guide rollers 61 are installed on the flipping frame 6. The paper guide rollers 61 carry and guide the printing material to change the direction of its running path, realize the flipping of the front and back of the printing material, and effectively improve the efficiency of the equipment for double-sided processing of the same printing material. The flipping frame 6 can also be further configured to slide along the production direction and move as the printing material is in different printing component 31 positions, so that the flipping and printing distance is closer and the overall flipping implementation is more flexible.

[0028] In some embodiments of this utility model, such as Figure 2 and Figure 4As shown, a support frame 12 is installed on the side of the base plate 1 away from the wall panel 11, and one end of the printing module 3 is mounted on the support frame 12. The support frame 12 can be a vertical frame or column structure, and its bottom is firmly fixed to one side of the base plate 1 by anchor bolts, positioning blocks or guide rails. The position corresponds to the end of the printing module 3 away from the wall panel 11. The height of the main body of the support frame 12 is measured so that the top support surface is approximately at the same horizontal level as the corresponding support point on the wall panel 11 used to install the printing module 3, so as to ensure that the printing module 3 is in a horizontal state after installation.

[0029] In some embodiments of this utility model, such as Figure 4 As shown, the printing assembly 31 includes a printing plate 311 located above the base plate 1. One end of the printing plate 311 is connected to the wall panel 11, and the other end is connected to the support frame 12, forming a stable installation base. The printing plate 311 moves in a straight line in the direction away from or towards the wall panel 11, thereby realizing the adjustment of the printing angle.

[0030] For example, a transverse rack is installed on the fixed wall panel 11 or support frame 12 along the moving direction of the printing plate 311. A freely rotatable gear is installed on the printing plate 311, and the gear meshes with the transverse rack on the wall panel 11. The rotation shaft of the gear is connected to the drive shaft or plate clamping system of the printing plate cylinder or screen carried on the printing plate 311 through a one-way transmission mechanism. When the angle needs to be adjusted, the operator drives the entire printing plate 311 to move laterally in a straight line. Due to the meshing relationship between the gear and the fixed rack, the linear movement of the printing plate 311 will force the gear to rotate, which is transmitted to the printing plate or screen through the one-way transmission mechanism, causing the printing plate or screen to rotate slightly in the circumferential direction, thereby realizing the adjustment of the printing angle.

[0031] In some embodiments of this utility model, such as Figure 4 As shown, the printing assembly 31 also includes a plurality of rollers 312 located above the printing plate 311. One end of the rollers 312 is rotatably connected to the wall plate 11, and the other end is rotatably connected to the support frame 12, forming a critical path for material transport, ink transfer or pressure application.

[0032] Depending on their role in the printing process, rollers 312 can be categorized into different types that work together. They can be guide rollers 61 or tension rollers used to guide and support the paper path of the printing material, or adjustable floating rollers used to fine-tune local tension. They can also be inking rollers or anilox rollers used to draw ink from the ink reservoir and transfer a quantitative amount of ink to the printing plate cylinder, with the anilox roller's cell engraving accuracy directly affecting the ink volume. They can also be printing plate cylinders that mount the printing plate and carry the graphic information. They can also be impression cylinders that provide the pressure required for printing, transferring ink from the printing plate to the printing material. In offset printing, the rubber cylinder is located between the printing plate cylinder and the impression cylinder. Alternatively, they can be ink fountain rollers or inking rollers, a series of rollers in offset printing units used to supply ink to the printing plate cylinder.

[0033] In some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, a slide rail 313 is provided on the side of the printing plate 311 near the base plate 1. The slide rail 313 connects the wall plate 11 and the support frame 12. A slider 314 is provided on the slide rail 313. The printing plate 311 is fixedly connected to the slider 314. The slider 314 drives the printing plate 311 to move linearly away from or towards the wall plate 11. The slide rail 313 can be configured as two or more parallel slide rails. The slider 314 can be fixedly connected to the bottom of the printing plate 311 by bolts. All the weight of the printing plate 311 and the force it experiences during operation are transmitted to the slide rail 313 through the slider 314, and finally borne by the wall plate 11 and the support frame 12. The movement of the slider 314 on the slide rail 313 can be driven by a combination of a servo motor and a ball screw, or by a manual crank or direct push to drive the slider 314 to move the printing assembly 31.

[0034] In some embodiments of this utility model, such as Figure 6 As shown, a correction component 7 is installed on the wall panel 11 to adjust the product. The correction component 7 can be installed before the first printing component 31 or the dust removal module 2 to correct the initial winding deviation of the printing material itself; it can also be installed between two printing components 31 to correct the cumulative deviation that may occur after the previous color printing, providing precise positioning for the next color printing; it can also be installed after the last printing component 31 and before the die-cutting module 5 to ensure that all printed patterns are precisely aligned with the die-cutting blade position.

[0035] The correction component 7 can employ photoelectric through-beam edge detection methods, such as installing a photoelectric sensor, using linear or area CCD cameras for visual inspection, or using ultrasonic or capacitive detection, to detect whether there are any deviations in the edge of the printing material or the position of the printed marks. The correction process can use oscillating roller correction or guide rail translation correction, which are conventional correction methods.

[0036] In some embodiments of this utility model, such as Figure 2 As shown, a corona discharge assembly 8 is installed on the wall panel 11 by bolts or quick clamps, and spans above or below the paper path of the printing material. It is set on the side of the printing module 3 away from the die-cutting module 5 along the production direction. Before the printing material enters the first printing assembly 31, at least one surface of the printing material is subjected to corona discharge treatment to improve surface performance and ensure the adhesion of ink and printing quality in subsequent printing processes.

[0037] In some embodiments of this utility model, such as Figure 2 As shown, a tension sensor 9 is installed on the wall panel 11 and set in the production direction to detect the tension value of the printing material in real time. This ensures that the material maintains a preset, uniform, and stable tension state during high-speed operation, effectively solving process problems such as material stretching and deformation, misregistration during printing, die-cutting positioning drift, and material wrinkling and breakage caused by tension fluctuations. This improves the stability, yield, and production speed of the entire multi-stage printing and die-cutting process, providing a guarantee for the equipment to achieve high-quality and high-efficiency production.

[0038] In some embodiments of this utility model, the printing component 31 in the printing module 3 includes one of flexographic printing, offset printing and screen printing.

[0039] Each printing component 31 can be a flexographic printing unit, such as including an anilox roller, a plate cylinder, and an impression cylinder. A flexible photosensitive resin plate is mounted on the plate cylinder. The printing material passes between the anilox roller and the plate cylinder, and between the plate cylinder and the impression cylinder, to complete the ink transfer.

[0040] The printing component 31 can be an offset printing unit, such as including an ink supply structure, a damping structure, and a three-cylinder mechanism consisting of a plate cylinder, a blanket cylinder, and an impression cylinder, wherein the pattern is first transferred from the printing plate to the blanket, and then transferred from the blanket to the substrate.

[0041] The printing component 31 can be a screen printing unit, such as including a screen, a squeegee and a back-inking blade. The screen contacts the substrate under the pressure of the squeegee, and the ink is printed onto the substrate through the image portion of the screen. This is especially suitable for printing thick inks, special effects or curved surfaces.

[0042] In actual equipment, the printing module 3 can be configured with the above units as different printing components 31. For example, the first three stations use high-speed flexographic printing units for color printing, and the fourth station uses screen printing units for partial UV coating or Braille printing. All printing components 31 share the same base plate 1 and wall plate 11 as the reference, and are synchronized through a unified transmission or servo system to ensure the registration accuracy between multi-level printing.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-stage printing and die-cutting device, characterized in that, include: A base plate (1), and a wall panel (11) mounted on the base plate (1); A dust removal module (2) is installed on the wall panel (11); The printing module (3) is installed on the base plate (1) along the length direction of the base plate (1), and one end is fixedly connected to the wall panel (11). The printing module (3) includes a plurality of printing components (31) which are spaced apart on the base plate (1) along the length direction of the base plate (1). A position adjustment component (4) is installed on the base plate (1) and is located downstream of the production direction of the printing module (3); The die-cutting module (5) is installed on the position adjustment component (4) and includes multiple die-cutting components (51). The die-cutting components (51) reciprocate linearly along the production direction on the position adjustment component (4). The length direction of the base plate (1) is the same as the production direction.

2. The multi-stage printing and die-cutting equipment according to claim 1, characterized in that, A flipping frame (6) is provided on the wall panel (11), and multiple paper guide rollers (61) are provided on the flipping frame (6) for rotating the product.

3. The multi-stage printing and die-cutting equipment according to claim 1, characterized in that, A support frame (12) is provided on the side of the base plate (1) away from the wall panel (11), and one end of the printing module (3) is mounted on the support frame (12).

4. The multi-stage printing and die-cutting equipment according to claim 3, characterized in that, The printing assembly (31) includes a printing plate (311) located above the base plate (1). One end of the printing plate (311) is connected to the wall panel (11), and the other end is connected to the support frame (12). The printing plate (311) moves in a straight line in a direction away from or close to the wall panel (11).

5. The multi-stage printing and die-cutting equipment according to claim 4, characterized in that, The printing assembly (31) also includes a plurality of rollers (312) located above the printing plate (311). One end of each roller (312) is rotatably connected to the wall panel (11), and the other end is rotatably connected to the support frame (12).

6. The multi-stage printing and die-cutting equipment according to claim 4, characterized in that, A slide rail (313) is provided on the side of the printing plate (311) near the base plate (1). The slide rail (313) connects the wall panel (11) and the support frame (12). A slider (314) is provided on the slide rail (313). The printing plate (311) is fixedly connected to the slider (314). The slider (314) drives the printing plate (311) to move in a straight line in a direction away from or close to the wall panel (11).

7. The multi-stage printing and die-cutting equipment according to claim 1, characterized in that, A correction component (7) is provided on the wall panel (11) for adjusting the product.

8. The multi-stage printing and die-cutting equipment according to claim 1, characterized in that, A corona assembly (8) is installed on the wall panel (11) and is positioned on the side of the printing module (3) away from the die-cutting module (5) along the production direction.

9. The multi-stage printing and die-cutting equipment according to claim 1, characterized in that, A tension sensor (9) is installed on the wall panel (11) and positioned in the production direction.

10. The multi-stage printing and die-cutting equipment according to any one of claims 1 to 9, characterized in that, The printing component (31) in the printing module (3) includes one of flexographic printing, offset printing and screen printing.

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