A printed matter laser die cutting device

Abstract

The utility model relates to the technical field of printed matter processing, especially a printed matter laser die cutting device, including frame, control assembly, be used for conveying the printed product from front to back conveying assembly and multiple groups of front and back interval arrangement's laser die cutting assembly, the laser die cutting assembly includes the laser die cutting head for printing matter laser die cutting and install on the frame for driving laser die cutting head left and right movement's translation drive mechanism, conveying assembly, laser die cutting head and translation drive mechanism all with control assembly communication connection. The printed matter laser die cutting device of implementing the utility model can reduce the downtime waiting time of conveying assembly, improves the laser cutting efficiency of printed matter.

Description

Technical Field

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

[0002] Laser die-cutting machines for printing are devices used for high-precision die-cutting of printed materials, widely used in the production and processing of packaging, labels, cartons, and other printed materials. Their main function is to cut and shape printed materials using a laser beam to meet the design requirements of different products.

[0003] Existing laser die-cutting machines for printed materials typically include the following key components: a conveyor assembly, a laser die-cutting head, and a dual-axis translation stage. The conveyor assembly is responsible for transporting the printed materials to the working area of ​​the laser die-cutting head; the laser die-cutting head is used to perform laser die-cutting operations on the printed materials; the dual-axis translation stage moves the laser die-cutting head in the forward, backward, left, and right directions to achieve cutting at different positions on the printed materials.

[0004] However, existing laser die-cutting machines for printed materials have certain limitations in practical use. Specifically, the conveyor assembly needs to transport the printed material to below the working position of the laser die-cutting head, then stop conveying and wait for the dual-axis translation stage to drive the laser die-cutting head to complete the cutting operation. Only after cutting is completed will the conveyor assembly restart to transport the next printed material or the next position to be cut on the same printed material to the cutting area. This working mode results in a long standby time during the cutting process, and the laser cutting efficiency of printed materials is relatively low. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a laser die-cutting device for printed materials, which can reduce the downtime of the conveying components and improve the laser cutting efficiency of printed materials.

[0006] To solve the above-mentioned technical problems, the present invention provides a laser die-cutting device for printed materials, including a frame, a control component, a conveying component for conveying printed materials from front to back, and multiple sets of laser die-cutting components arranged at intervals. Each laser die-cutting component includes a laser die-cutting head for laser die-cutting printed materials and a translation drive mechanism mounted on the frame for driving the laser die-cutting head to move left and right. The conveying component, the laser die-cutting head, and the translation drive mechanism are all communicatively connected to the control component.

[0007] As an improvement to the above technical solution, the translation drive mechanism includes a slide block that is slidably connected to the frame on the left and right, a lead screw that is horizontally rotatably connected to the frame and extends to the left and right, and a servo motor mounted on the frame for driving the lead screw to rotate. The lead screw is threadedly connected to the slide block, the laser die-cutting head is mounted on the slide block, and the servo motor is communicatively connected to the control component.

[0008] As an improvement to the above technical solution, the translation drive mechanism further includes a distance sensor mounted on the frame for detecting the position of the slide block, and the distance sensor is communicatively connected to the control component.

[0009] As an improvement to the above technical solution, the frame is provided with a plurality of connecting through holes that are one-to-one arranged below a plurality of lead screws and extend to the left and right. The slide includes a horizontal plate that is slidably connected to the frame to the left and right and a vertical plate that is fixed to the lower side of the horizontal plate and passes through the connecting through holes. The lead screws are threadedly connected to the horizontal plate, and the laser die-cutting head is installed on one side of the vertical plate.

[0010] As an improvement to the above technical solution, the distance sensor is used to detect the position of the vertical plate.

[0011] As an improvement to the above technical solution, the laser die-cutting assembly also includes a negative pressure suction hose installed on the laser die-cutting head with the suction port aligned with the cutting position below the laser die-cutting head.

[0012] As an improvement to the above technical solution, a filter screen is provided at the suction port of the negative pressure suction hose.

[0013] As an improvement to the above technical solution, the laser die-cutting device for printed materials of this utility model further includes a color mark sensor disposed in front of the laser die-cutting assembly and used for detecting the color mark of the printed material, wherein the color mark sensor is communicatively connected to the control assembly.

[0014] The present invention has the following beneficial effects:

[0015] The laser die-cutting device for printed materials of this invention, through the cooperation of a frame, control components, conveying components, and multiple sets of laser die-cutting components, can reduce the downtime of the conveying components and improve the laser cutting efficiency of printed materials. Attached Figure Description

[0016] Figure 1 This is a layout view of the laser die-cutting device for printed materials in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the laser die-cutting assembly mounted on the frame in an embodiment of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a communication principle diagram of the control component in an embodiment of this utility model.

[0020] In the picture:

[0021] 100. Frame; 110. Connecting through hole;

[0022] 200. Control components;

[0023] 300. Conveying components;

[0024] 400. Laser die-cutting assembly; 410. Laser die-cutting head; 420. Translation drive mechanism; 421. Slide; 422. Lead screw; 423. Servo motor; 424. Distance sensor; 425. Horizontal plate; 426. Vertical plate; 430. Negative pressure suction hose; 431. Filter screen;

[0025] 500, color mark sensor. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to facilitate a clearer understanding of the technical concept claimed by the present invention. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit the present invention.

[0027] like Figures 1 to 4 As shown in the figure, a laser die-cutting device for printed materials in an embodiment of the present invention includes a frame 100, a control component 200, a conveying component 300 for conveying printed materials from front to back, and multiple sets of laser die-cutting components 400 arranged at intervals.

[0028] It should be noted that the laser die-cutting device for printed materials of this utility model can process printed materials that are flat sheets of paper, or multiple printed materials that are connected at the ends and rolled up.

[0029] When processing printed materials in the form of flat paper, the conveyor assembly 300 can select either a flat conveyor belt or a clamping conveyor belt according to actual needs. The clamping conveyor belt includes two spaced-apart conveyor belts set on the flat conveyor belt. The clamping conveyor belts run in the opposite direction to the flat conveyor belt and at the same speed. By clamping the left and right edges of the printed material, the laser processing portion is effectively left untreated, ensuring the stability and accuracy of the processing.

[0030] When the processing object is a rolled printed material, such as Figure 1 As shown, the conveying assembly 300 may include an unwinding roller, a rewinding roller, and two guide rollers disposed between the unwinding roller and the rewinding roller. The unwinding roller releases the rolled printed material, which, guided by the guide rollers, remains taut in the working area of ​​the laser die-cutting assembly 400. After cutting, the rewinding roller rewinds the printed material. In practice... Figure 1 The "left" in the original text refers to the "back" in reality. Figure 1 The "right" in the text is actually the "front".

[0031] The laser die-cutting assembly 400 includes a laser die-cutting head 410 for laser die-cutting printed materials and a translation drive mechanism 420 mounted on the frame 100 for driving the laser die-cutting head 410 to move left and right. The conveying assembly 300, the laser die-cutting head 410, and the translation drive mechanism 420 are all communicatively connected to the control assembly 200. In practice, the laser die-cutting head 410 can be a carbon dioxide laser cutter, a light laser cutter, a galvanometer scanning laser cutter, etc., capable of cutting printed materials; the translation drive mechanism 420 can be a servo linear motor, a single-axis translation stage, etc., capable of driving the laser cutter head to move left and right to change its position; the control assembly 200 can be a PLC (programmable logic controller) or an industrial computer, capable of automatically controlling the conveying assembly 300, the laser die-cutting head 410, and the translation drive mechanism 420.

[0032] like Figure 1 As shown, the laser die-cutting device for printed materials in this embodiment of the present invention has three sets of laser die-cutting components 400. In practical applications, the number of laser die-cutting components 400 can be changed according to the shape of the path to be cut.

[0033] The specific working principle of the laser die-cutting device for printed materials of this utility model is as follows.

[0034] Cutting path input: The operator inputs the cutting path information of the printed material through the operation interface of the control component 200. The cutting path information may include the outline, size, shape, and cutting sequence of the cutting graphic, which can be manually drawn through the graphical interface or imported from a pre-designed cutting path file (such as a CAD file).

[0035] Path segmentation and allocation: After receiving the cutting path information, the control component 200 divides the overall cutting path into multiple target paths using a built-in software algorithm. These target paths can be allocated according to the complexity of the cutting task, the size of the printed material, and the number and layout of the laser die-cutting heads 410.

[0036] Operating parameter calculation: The control component 200 calculates the operating parameters of each translation drive mechanism 420 based on the conveying speed of the conveying component 300 and the working range and task allocation of each laser die-cutting head 410. These parameters may include the moving speed, acceleration, and moving distance of the translation drive mechanism 420, to ensure that the laser die-cutting head 410 can reach the cutting position and complete the cutting task during the operation of the conveying component 300.

[0037] Automated operation control: The control component 200 controls the coordinated operation of the conveying component 300, multiple translation drive mechanisms 420 and multiple laser die-cutting heads 410 through communication connection based on the calculated operating parameters.

[0038] It should be noted that the input of the cutting path, the division and allocation of the target path, and the calculation and control of the operating parameters of each component all fall within the scope of the software programming and control work of the control component 200. The specific software algorithms and control logic have been implemented in the design of the control component 200, and their details will not be elaborated here.

[0039] In summary, the laser die-cutting device for printed materials of this utility model distributes the workload originally completed by a single laser die-cutting head 410 to multiple laser die-cutting heads 410 working together. Multiple laser die-cutting heads 410 perform cutting operations simultaneously, enabling parallel processing of cutting tasks and thus meeting the needs of high-efficiency production. Except when the conveying component 300 needs to stop conveying printed materials when cutting paths that extend to the left and right, in most cutting paths (such as paths that extend forward and backward, oblique paths, and arc paths), the conveying component 300 can continuously convey printed materials from front to back, reducing the downtime of the conveying component 300 and further improving work efficiency.

[0040] The laser die-cutting device for printed materials of this utility model, through the cooperation of the frame 100, the control component 200, the conveying component 300 and multiple sets of laser die-cutting components 400, can reduce the downtime of the conveying component 300 and improve the laser cutting efficiency of printed materials.

[0041] Specifically, the translation drive mechanism 420 preferably includes a slide block 421 slidably connected to the frame 100, a lead screw 422 horizontally rotatably connected to the frame 100 and extending laterally, and a servo motor 423 mounted on the frame 100 for driving the lead screw 422 to rotate. The lead screw 422 is threadedly connected to the slide block 421, and the laser die-cutting head 410 is mounted on the slide block 421. The servo motor 423 is communicatively connected to the control component 200. During operation, the control component 200 sends commands to the servo motor 423 based on the operating parameters calculated according to the cutting path and conveying speed. The servo motor 423 drives the lead screw 422 to rotate. Through the threaded engagement between the lead screw 422 and the slide block 421, the rotational motion of the lead screw 422 is converted into the linear motion of the slide block 421, thereby driving the laser die-cutting head 410 mounted on the slide block 421 to move left and right, realizing the cutting operation of the printed matter.

[0042] Furthermore, the translation drive mechanism 420 preferably includes a distance sensor 424 mounted on the frame 100 for detecting the position of the slide 421, and the distance sensor 424 is communicatively connected to the control component 200. During operation, the distance sensor 424 monitors the movement position of the slide 421 in real time and feeds back the detected position information to the control component 200. Based on the feedback position information, the control component 200 controls the servo motor 423 through built-in operating software combined with preset cutting paths and operating parameters, thereby adjusting and correcting the movement path of the slide 421. This feedback control mechanism can compensate for the positional deviation of the slide 421 caused by mechanical error interference factors, and improve the accuracy of the movement path of the laser die-cutting head 410.

[0043] More specifically, the frame 100 preferably has multiple connecting through holes 110, each corresponding to one below multiple lead screws 422 and extending laterally. The slide block 421 includes a horizontal plate 425 slidably connected to the frame 100 and a vertical plate 426 fixed to the lower side of the horizontal plate 425 and passing through the connecting through holes 110. The lead screws 422 are threadedly connected to the horizontal plate 425, and the laser die-cutting head 410 is mounted on one side of the vertical plate 426. In fact, the horizontal plate 425 is slidably connected to the frame 100 on its lower side and has a plate threadedly connected to the lead screws 422 on its upper side, which serves to prevent the horizontal plate 425 from rotating when the lead screws 422 rotate. At the same time, by setting the connecting through holes 110 and the vertical plate 426, the lead screws 422 and the laser die-cutting head 410 are respectively set on the inner and outer sides of the frame 100, reducing the influence of the lead screws 422 on the laser die-cutting head 410.

[0044] Furthermore, the distance sensor 424 is preferably used to detect the position of the vertical plate 426. Since the laser die-cutting head 410 is mounted on the vertical plate 426, the distance between the detected position and the laser die-cutting head 410 is fixed. The position of the laser die-cutting head 410 can be calculated by detecting the position of the vertical plate 426.

[0045] It is worth mentioning that the laser die-cutting assembly 400 preferably also includes a negative pressure suction hose 430 mounted on the laser die-cutting head 410 with its suction port aligned with the cutting position below the laser die-cutting head 410. In fact, the exhaust port of the negative pressure suction hose 430 is connected to an external air extraction device to discharge the waste gas generated during the laser cutting process. To ensure the flexibility of the laser die-cutting head 410 when moving left and right, the portion of the negative pressure suction hose 430 near the suction port is fixed to the vertical plate 426 with an appropriate allowance to prevent the negative pressure suction hose 430 from breaking when the laser die-cutting head 410 moves. During operation, the waste gas generated during the cutting process is extracted through the negative pressure suction hose 430, preventing excessive accumulation of waste gas in the working area and thus improving the working environment.

[0046] Furthermore, a filter screen 431 is preferably provided at the suction port of the negative pressure suction hose 430. In practice, the filter screen 431 can be selected with different mesh sizes according to actual needs to prevent larger debris from entering the negative pressure suction hose 430 and thus avoid clogging. During actual use, if larger debris accumulates at the filter screen 431, the outside of the suction port of the negative pressure suction hose 430 can be cleaned when the machine is stopped.

[0047] Furthermore, the laser die-cutting device for printed materials of this invention preferably includes a color mark sensor 500 disposed in front of the laser die-cutting assembly 400 for detecting color marks on the printed material. The color mark sensor 500 is communicatively connected to the control assembly 200. In practice, when a color mark on the printed material reaches below the color mark sensor, the color mark sensor 500 can detect the corresponding color mark. The color mark on the printed material not only checks whether the pattern color meets the requirements, but its position also has a fixed relative relationship with the outline to be cut. Simultaneously, the relative position of the color mark sensor 500 and the laser die-cutting assembly 400 remains fixed. Therefore, when the color mark sensor 500 detects a color mark, the control assembly 200 can control the start-up timing of each group of laser die-cutting assemblies 400 according to the position of the color mark, thereby improving the accuracy of the cutting operation. The principle of this design is to use color marks as reference points for cutting positioning. The color mark sensor 500 monitors the position of the color mark in real time and provides a precise cutting start signal to the control component 200 based on the conveying speed and distance of the conveying component 300. When processing continuous printing or batch production, it can effectively avoid cutting errors caused by the position deviation of the printed matter and improve the die-cutting quality.

[0048] The above are merely specific embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A laser die-cutting device for printed materials, characterized in that: The device includes a frame, a control component, a conveyor component for conveying printed materials from front to back, and multiple sets of laser die-cutting components spaced apart front to back. Each laser die-cutting component includes a laser die-cutting head for laser die-cutting printed materials and a translation drive mechanism mounted on the frame for driving the laser die-cutting head to move left and right. The conveyor component, the laser die-cutting head, and the translation drive mechanism are all communicatively connected to the control component.

2. The laser die-cutting device for printed materials as described in claim 1, characterized in that: The translation drive mechanism includes a slide block that is slidably connected to the frame on the left and right, a lead screw that is rotatably connected to the frame on the horizontal and extends to the left and right, and a servo motor mounted on the frame for driving the lead screw to rotate. The lead screw is threadedly connected to the slide block, the laser die-cutting head is mounted on the slide block, and the servo motor is communicatively connected to the control component.

3. The laser die-cutting device for printed materials as described in claim 2, characterized in that: The translation drive mechanism also includes a distance sensor mounted on the frame for detecting the position of the slide, and the distance sensor is communicatively connected to the control component.

4. The laser die-cutting device for printed materials as described in claim 3, characterized in that: The frame is provided with a plurality of connecting through holes that are one-to-one arranged below a plurality of lead screws and extend to the left and right. The slide includes a horizontal plate that is slidably connected to the frame to the left and right and a vertical plate that is fixed to the lower side of the horizontal plate and passes through the connecting through holes. The lead screws are threadedly connected to the horizontal plate and the laser die-cutting head is installed on one side of the vertical plate.

5. The laser die-cutting device for printed materials as described in claim 4, characterized in that: The distance sensor is used to detect the position of the vertical plate.

6. The laser die-cutting device for printed materials as described in claim 2, characterized in that: The laser die-cutting assembly also includes a negative pressure suction hose mounted on the laser die-cutting head with its suction port aligned with the cutting position below the laser die-cutting head.

7. The laser die-cutting device for printed materials as described in claim 6, characterized in that: A filter screen is installed at the suction port of the negative pressure suction hose.

8. The laser die-cutting device for printed materials as described in claim 1, characterized in that: It also includes a color mark sensor disposed in front of the laser die-cutting assembly and used to detect color marks on printed materials, the color mark sensor being communicatively connected to the control assembly.

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