UV printing and cutting device based on machine vision

Abstract

The utility model relates to the technical field of printing and cutting, in particular to a UV printing and cutting device based on machine vision, which comprises a first integrated board, and the first integrated board is provided with a cutting machine head assembly, a printing module and a vision acquisition module for vision acquisition and positioning. According to the utility model, visual positioning, cutting and UV printing are integrated, automatic operation is realized, manual operation is reduced, production efficiency is improved, and varnish printing on materials with patterns is realized through visual identification.

Description

Technical Field

[0001] The utility model relates to the technical fields of printing and cutting, in particular to a UV printing and cutting device based on machine vision. Background Art

[0002] The UV printing technology can print a bright protective layer (abbreviated as varnish in the industry) on the pattern, and achieve the effect of 3D relief, greatly improving the color brightness, lifespan, and effect layering of the image, and at the same time also having the function of color printing.

[0003] Many users' existing equipment is printing equipment and ordinary color printers, which do not have the function of printing varnish. Replacing the new equipment by users will bring expensive procurement costs and floor space costs. Moreover, after printing, the material needs to be post-cut and processed to become a finished product. The operator needs to be familiar with the operation methods of the two types of equipment. During the implementation process, the material needs to be moved back and forth for repositioning, the process is complicated, and the processing efficiency is low.

[0004] The existing UV printing equipment can print color patterns and varnish at the same time, but the printing speed is very slow and it can only process materials without printed patterns, and does not have the function of visual secondary positioning. Summary of the Utility Model

[0005] The utility model aims to solve the above defects, and provides a UV printing and cutting device based on machine vision, which integrates visual positioning, cutting, and printing. It can print varnish on the patterned material through visual recognition.

[0006] In order to overcome the defects in the background art, the technical solution adopted by the utility model to solve its technical problems is: a UV printing and cutting device based on machine vision, including a first integrated board, on which a cutting head assembly, a printing module, and a visual acquisition module for visual acquisition and positioning are arranged.

[0007] Further improvement includes that a second integrated board is arranged on the first integrated board. The cutting head assembly includes a cutting module one and a cutting module two. The visual acquisition module and the cutting module two are arranged on the second integrated board, and the cutting module one is arranged on the first integrated board.

[0008] Further improvement includes that the visual acquisition module is arranged on the second integrated board through a mounting plate, and the visual acquisition module is arranged downward.

[0009] Further improvement includes that the cutting module two includes a vertical lifting mechanism and a tool mounting member connected to the output end of the vertical lifting mechanism. The vertical lifting mechanism drives the tool mounting member to move up and down to achieve the cutting function.

[0010] Further improvements include that the tool mounting member includes a mounting base, a locking portion, and a bolt. A mounting opening is formed on the mounting base, and the threaded holes formed on the mounting base are arranged radially with respect to the mounting opening. The bolt passes through the locking portion and is connected to the threaded hole. Rotating the bolt pushes the locking portion to radially press the tool mounted in the mounting opening.

[0011] Further improvements include that a slider one is slidably arranged on a guide rail one mounted on the side of the second integrated board, and the slider one is connected to the tool mounting member.

[0012] Further improvements include that the printing module includes a lifting plate assembly, a printing nozzle for spraying and printing the material to be processed, an air buffer bottle, a secondary ink bottle, and a fixing plate. The secondary ink bottle, the printing nozzle, and the air buffer bottle are all mounted on the lifting plate assembly. The air buffer bottle is connected to the secondary ink bottle through a pipeline, and the secondary ink bottle is connected to the printing nozzle through a pipeline for supplying varnish. A guide rail two and a motor are mounted on the fixing plate. The output end of the motor is axially connected to a lead screw. A lead screw nut is connected to the lead screw, and the lead screw nut is mounted on a lead screw nut seat. A slider two is slidably arranged on the guide rail two. The lead screw nut seat and the slider two are respectively connected to the lifting plate assembly, and the fixing plate is mounted on the first integrated board.

[0013] Further improvements include that a UV curing lamp is mounted on the lifting plate assembly.

[0014] Further improvements include that the vision acquisition module adopts a CCD camera, a photographing camera, or a scanning camera.

[0015] A control method for a UV printing and cutting device based on machine vision includes the following steps:

[0016] S1: Input the original image and cutting data into the control system, and the original image and cutting data contain information of feature points;

[0017] S2: Place the material to be processed on the equipment loading platform;

[0018] S3: The control system scans each feature point on the material to be processed through the vision acquisition module, and the control system matches the feature point information in the original image with the feature points on the material to be processed to calculate the position and rotation angle of the material to be processed; the feature points on the material to be processed are the corners, contours of the material to be processed, or feature marks on the material image;

[0019] S4: The control system automatically adjusts and corrects the original image and cutting data according to the calculated position and rotation angle of the material to be processed to achieve complete matching with the position of the material to be processed or the printed image.

[0020] S5: The control system controls the printing module to start printing. The printing module performs position-matching printing according to the image data after the original image is rectified until the printing is completed.

[0021] S6: The control system controls the cutting head assembly to perform cutting according to the cutting data after rectification.

[0022] Further improvements include that the feature points on the material to be processed are the corners, contours of the material to be processed, or feature marks on the material image.

[0023] Further improvements include that the feature marks are preferably positioning points in the shape of a circle or a cross.

[0024] The beneficial effects of the present utility model are as follows: This design integrates visual positioning, cutting, and UV printing, truly realizing automated operation, reducing manual operation time, reducing procurement costs by 60%, saving 50% of the equipment floor area, and improving production efficiency. Through visual recognition, varnish is printed on patterned materials, improving the processing speed of the processing method of printing varnish on patterned materials. Description of the Drawings

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 is the axonometric view of the present utility model Figure 1 ;

[0027] Figure 2 is the axonometric view of the present utility model Figure 2 ;

[0028] Figure 3 is the axonometric view of the printing module in the present utility model Figure 1 ;

[0029] Figure 4 is the axonometric view of the printing module in the present utility model Figure 2 ;

[0030] Figure 5 is the front sectional view of the tool mounting member in the present utility model;

[0031] In the figure, 1 - cutting head assembly, 2 - up - and - down lifting mechanism, 3 - slider one, 4 - guide rail one, 5 - tool mounting member, 6 - first integrated board, 7 - vision acquisition module, 8 - mounting plate, 9 - second integrated board, 10 - lifting plate assembly, 11 - air buffer bottle, 12 - fixing plate, 13 - printing nozzle, 14 - UV curing lamp, 15 - secondary ink bottle, 16 - motor, 17 - guide rail two, 18 - lead screw nut seat, 19 - mounting port, 20 - screw hole, 21 - locking part, 22 - bolt, 23 - mounting seat, 24 - lead screw, 25 - lead screw nut, 26 - slider two, 27 - cutting module one, 28 - cutting module two. Detailed implementation mode

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0033] According to Figure 1 and Figure 2 As shown, a UV printing and cutting device based on machine vision includes a first integrated board 6. A cutting head assembly 1, a printing module, and a vision acquisition module 7 for visual acquisition and positioning are provided on the first integrated board 6. This design integrates visual positioning, cutting, and printing into one.

[0034] A second integrated board 9 is provided on the first integrated board 6. The cutting head assembly 1 includes a cutting module one 27 and a cutting module two 28. The vision acquisition module 7 and the cutting module two 28 are provided on the second integrated board 9. The cutting module one 27 is provided on the first integrated board 6. Adopting the above - mentioned implementation method is beneficial to saving installation space.

[0035] The vision acquisition module 7 is arranged on the second integrated board 9 through a mounting plate 8, and the vision acquisition module 7 is arranged downward for collecting feature points on the material.

[0036] According to Figure 2As shown, the second cutting module 28 includes a vertical lifting mechanism 2 and a tool mounting member 5 connected to the output end of the vertical lifting mechanism 2. The vertical lifting mechanism 2 drives the tool mounting member 5 to move up and down to achieve the cutting function. The vertical lifting mechanism 2 is preferably a DC push-pull electromagnet. The vertical lifting mechanism 2 drives the tool mounted on the tool mounting member 5 to move up and down to cut the material to be processed. By cooperating with different tools mounted on the cutting head assembly 1, different cutting effects can be achieved. The cutting head assembly 1 includes a first cutting module 27 and a second cutting module 28. The cutting head assembly 1 can include a combination of multiple and various cutting tools. Different tools have different processing effects, such as cutting through the material, half-cutting the material, making indentations on the material surface, making grooves, making marks on the material surface, etc. Moreover, the combination of multiple components reduces the tool change, greatly improving the cutting efficiency. Among them, the second cutting module 28 focuses on cutting thinner materials.

[0037] According to Figure 5 As shown, the tool mounting member 5 includes a mounting base 23, a locking portion 21, and a bolt 22. An installation opening 19 is formed on the mounting base 23. The installation opening 19 is used for installing the tool. The threaded hole 20 formed on the mounting base 23 is radially arranged relative to the installation opening 19. The bolt 22 passes through the locking portion 21 and then is connected to the threaded hole 20. Rotating the bolt 22 pushes the locking portion 21 to radially press the tool installed in the installation opening 19, playing a role in fixing the tool. Adopting the above implementation method is beneficial to the clamping and disassembly of the tool, with a simple structure and convenient maintenance.

[0038] A slider 3 is slidably arranged on the first guide rail 4 mounted on the side of the second integrated board 9. The slider 3 is connected to the tool mounting member 5, so that the tool mounting member 5 moves along the first guide rail 4 for up and down movement. This implementation method ensures the stability of cutting when the tool mounting member 5 moves up and down.

[0039] According to Figure 3 and Figure 4As shown in the figure, the printing module includes a lifting plate assembly 10, a printing nozzle 13 for spraying and printing on the material to be processed, an air buffer bottle 11, a secondary ink bottle 15, and a fixing plate 12. The secondary ink bottle 15, the printing nozzle 13, and the air buffer bottle 11 are all installed on the lifting plate assembly 10. The air buffer bottle 11 is connected to the secondary ink bottle 15 through a pipeline. The secondary ink bottle 15 is connected to the printing nozzle 13 through a pipeline for supplying varnish. The air buffer bottle 11 is connected to a negative pressure system through a pipeline. The negative pressure system keeps the varnish in the printing nozzle 13 to prevent overflow. Printing is achieved by supplying air to the negative pressure system while supplying varnish to the secondary ink bottle 15. A second guide rail 17 and a motor 16 are installed on the fixing plate 12. The output end of the motor 16 is axially connected to a lead screw 24. A lead screw nut 25 is connected to the lead screw 24, and the lead screw nut 25 is installed on a lead screw nut seat 18. A second slider 26 is slidably arranged on the second guide rail 17. The lead screw nut seat 18 and the second slider 26 are respectively connected to the lifting plate assembly 10. The fixing plate 12 is installed on the first integrated board 6. The motor 16 drives the lead screw 24 to rotate, and under the action of torque, drives the lead screw nut 25, the lead screw nut seat 18, and the lifting plate assembly 10 to move up and down. At the same time, the second slider 26 slides on the second guide rail 17. Printing is performed on the material to be processed through the printing module. Multiple secondary ink bottles 15 can be set to load inks of different colors to achieve color printing. By adopting the above implementation manner, printing varnish on the patterned material to be processed is realized through visual positioning. After the two are combined and integrated, the processing speed of this method is improved, and the image processing speed can be increased by 10 - 20 times.

[0040] A UV curing lamp 14 is installed on the lifting plate assembly 10, and the ink on the printed material is quickly cured by the UV curing lamp 14.

[0041] Working principle: The material to be processed is conveyed to the workbench. The material is mainly a material that can be printed or printed on, such as white cardboard, coated paper, corrugated paper, self-adhesive, car sticker, PVC (polyvinyl chloride), etc. The material can also be a roll material and a sheet material. The visual acquisition module 7 is used to locate the position of the material to be processed. The material can be a material with a printed image or a material without an image. Since the material is placed at any position within the range of the workbench and there is a situation of tilting, the visual acquisition module 7 can locate the accurate position of the material to be processed. The calibration of the visual acquisition module 7 is obtained by calculating the ratio of the image size to the actual image size to ensure the accuracy of obtaining the position of the feature points.

[0042] The visual acquisition module 7 adopts a CCD camera, a photographing camera or a scanning camera, and the visual acquisition module 7 acquires an image of the feature points on the material to be processed.

[0043] The feature points are the corners, contours of the material to be processed or feature marks on the material image. The feature marks are preferably feature marks such as positioning points in the shape of a circle or a cross that can be analyzed by software. Among them, the material of the printed image generally uses the positioning points in the shape of a circle or a cross on the image as feature marks, and the material without a printed image uses the material contour or corner as the feature point.

[0044] After the visual acquisition module 7 completes the positioning acquisition, the control system scans each feature point on the material to be processed through the visual acquisition module 7, and the control system matches the feature point information in the original image with the feature points on the material to be processed, calculates the position and rotation angle of the material to be processed. The control system automatically adjusts and corrects the original image and cutting data according to the calculated position and rotation angle of the material to be processed to achieve a complete match with the position of the material or the printed image. The printing module starts printing, and the printing module will perform position matching printing according to the image data after the original image is corrected until the printing is completed. After that, the cutting head assembly 1 performs cutting according to the corrected cutting data. The cutting head assembly 1 can include a combination of various and multiple cutting tools. Different tools have different processing effects, realizing functions such as half-cutting, full-cutting, and scribing, and can make indentations or marks on the surface of the material to be processed.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A UV printing and cutting device based on machine vision, characterized in that: It comprises a first integrated board (6), on which a cutting head assembly (1), a printing module and a visual acquisition module (7) for visual acquisition positioning are arranged.

2. The UV printing and cutting device based on machine vision according to claim 1, characterized in that: A second integrated board (9) is arranged on the first integrated board (6), the cutting machine head assembly (1) comprises a first cutting module (27) and a second cutting module (28), a visual acquisition module (7) and a second cutting module (28) are arranged on the second integrated board (9), and the first cutting module (27) is arranged on the first integrated board (6).

3. The UV printing and cutting device based on machine vision as claimed in claim 2, characterized in that: The cutting module 2 (28) comprises an up-and-down lifting mechanism (2) and a tool mounting component (5) connected to the output end of the up-and-down lifting mechanism (2), wherein the up-and-down lifting mechanism (2) drives the tool mounting component (5) to move up and down to realize a cutting function.

4. The UV printing and cutting device based on machine vision as claimed in claim 3, characterized in that: The tool mounting component (5) comprises a mounting seat (23), a locking portion (21) and a bolt (22); a mounting opening (19) is provided on the mounting seat (23); a threaded hole (20) provided on the mounting seat (23) is radially arranged relative to the mounting opening (19); the bolt (22) passes through the locking portion (21) and is connected to the threaded hole (20); the bolt (22) is rotated to push the locking portion (21) so that the locking portion (21) radially presses the tool mounted in the mounting opening (19).

5. The UV printing and cutting device based on machine vision as claimed in claim 3, characterized in that: A slide block (3) is slidably arranged on a guide rail (4) mounted on the side of the second integrated board (9), and the slide block (3) is connected to the tool mounting component (5).

6. The UV printing and cutting device based on machine vision according to claim 1, characterized in that: The printing module comprises a lifting plate assembly (10), a printing nozzle (13) for spraying and printing a material to be processed, an air buffer bottle (11), a secondary ink bottle (15) and a fixing plate (12); the secondary ink bottle (15), the printing nozzle (13) and the air buffer bottle (11) are all mounted on the lifting plate assembly (10); the air buffer bottle (11) is connected to the secondary ink bottle (15) via a pipeline; the secondary ink bottle (15) is connected to the printing nozzle (13) via a pipeline for supplying varnish; A second guide rail (17) and a motor (16) are mounted on the fixed plate (12); an output end of the motor (16) is axially connected to a lead screw (24); a lead screw nut (25) is connected to the lead screw (24), and the lead screw nut (25) is mounted on a lead screw nut seat (18); a second slider (26) is slidably arranged on the second guide rail (17); the lead screw nut seat (18) and the second slider (26) are respectively connected to the lifting plate assembly (10); and the fixed plate (12) is mounted on the first integrated plate (6).

7. The UV printing and cutting device based on machine vision according to claim 6, characterized in that: A UV curing lamp (14) is installed on the lifting plate assembly (10).

8. The UV printing and cutting device based on machine vision as claimed in claim 1, characterized in that: The visual acquisition module (7) is arranged on the second integrated board (9) via a mounting plate (8), and the visual acquisition module (7) is arranged downward.

9. The UV printing and cutting device based on machine vision according to claim 1, characterized in that: The visual acquisition module (7) adopts a CCD camera, a camera or a scanning camera.

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