Positioning mechanism of assembly line UV printer
By combining a visual positioning mechanism and a line scan camera, precise positioning of the UV printer on the production line is achieved, solving the problem of inaccurate positioning in traditional printers and improving printing accuracy and efficiency.
Patent Information
- Application Number
- CN202520743182.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-18
AI Technical Summary
Traditional UV printers on production lines cannot accurately position products, resulting in large deviations in pattern position, requiring secondary processing, wasting materials, and being inefficient.
A visual positioning mechanism is used, which combines a line scan camera and an optical lens. By scanning the product's shape and using the vision system to calculate, precise positioning is achieved. The printing head moves according to the visual positioning components to ensure accurate printing of the pattern.
It improves printing accuracy, saves materials, reduces secondary processing, and enhances work efficiency and printing precision.
Smart Images
Figure CN223835266U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of printing technology, specifically relating to a positioning mechanism for a production line UV printer. Background Technology
[0002] A production line UV printer is a type of printing equipment commonly used in industrial production.
[0003] Traditional UV printers on production lines can only print on products with low requirements, products where the position of the pattern on the product can be relatively large, or the pattern can only be printed on the product first, and then the product is cut and trimmed according to the pattern position to achieve the desired pattern position. This is very wasteful of raw materials, the secondary processing is cumbersome, and the efficiency is low. The printer cannot directly position the product during printing. Utility Model Content
[0004] (1) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a positioning mechanism for a production line UV printer. This aims to solve the problems of traditional production line UV printers, which can only print on products with low requirements, products where the pattern's position on the product can have relatively large deviations, or products where the pattern must be printed onto the product first and then cut and trimmed to position the pattern as needed. This process is wasteful of raw materials, cumbersome in secondary processing, inefficient, and cannot directly position the product during printing.
[0006] (2) Technical solution
[0007] To address the aforementioned technical problems, this utility model provides a positioning mechanism for a UV printer production line, comprising a printer body, a production line conveyor belt mounted above the printer body, a fixed mounting bracket mounted on the upper part of the production line conveyor belt above the printer body, displacement mechanisms mounted on both sides of the fixed mounting bracket, each displacement mechanism including a connecting bracket, and a printing carriage fixedly mounted on one side of the connecting bracket, a vision positioning mechanism mounted on the lower side of the printing carriage, the vision positioning mechanism including a vision mounting back plate mounted on the bottom side of the printing carriage, a vision height adjustment plate mounted at the front end of the vision mounting back plate, vision height adjustment blocks on both sides of the vision height adjustment plate, light source mounting plates mounted on both sides of the front end of the vision height adjustment plate, a camera vertical adjustment plate mounted above the two light source mounting plates, a camera mounted in the middle of the camera vertical adjustment plate, and an optical lens connected to the end of the camera, light source mounting seats fixed at the bottom of the two light source mounting plates, and a light source mounted below the light source mounting seats.
[0008] Furthermore, the vision mounting backplate is fixedly mounted to the bottom side of the printing head using a threaded assembly, wherein the threaded assembly includes a threaded groove and a bolt rod.
[0009] Furthermore, the visual height adjustment plate utilizes the visual height adjustment blocks on both sides and the visual mounting back plate to form a threaded mounting connection.
[0010] Furthermore, threaded holes are provided on both sides of the vision mounting back plate.
[0011] Furthermore, the camera and the optical lens are both connected to the camera vertical adjustment plate via a threaded connection.
[0012] Furthermore, the displacement mechanism includes a preset groove, which is located on one side of the fixed bracket. A transmission screw is installed in the middle of the preset groove, and a first bevel gear is fixedly provided around one section of the transmission screw. A second bevel gear meshes with one side of the first bevel gear, and the output end of the motor is installed in the middle of the second bevel gear. A screw sleeve is screwed around one side of the transmission screw, and a connecting bracket is fixedly provided on one side of the screw sleeve. A guide rail is provided on the other side of the fixed bracket.
[0013] Furthermore, the first bevel gear and the second bevel gear are connected by a meshing transmission.
[0014] Furthermore, the guide rail and the printing head are connected by a movable guide connection.
[0015] (3) Beneficial effects
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] This invention allows operators to continuously feed materials according to the linear transport speed of the conveyor belt on the printer body. A camera continuously scans the products to be printed on the conveyor belt (it's worth noting that the camera in this solution is a commonly used industrial line scan camera, which typically features high resolution and high speed; it acquires a complete image of the object through scanning, making it suitable for visual positioning). The scanned images are then processed by a vision system, and the algorithm identifies the shape of the scanned product and its corresponding position on the conveyor belt. Subsequently, when the product reaches the printing head, the printing head matches the desired pattern onto the product. Compared to existing UV printers on production lines, this new device incorporates a visual positioning method to solve the problem of inaccurate product positioning. It saves materials, eliminates the need for secondary processing, improves work efficiency, and saves time. Simply place the product on the production line conveyor belt for precise printing. Portable and practical, it allows operators to adjust the camera height using the visual height adjustment plate and blocks mounted on the back panel. This adjusts the line scan camera's focus on the product. Furthermore, the camera and optical lens are screwed together and mounted on the camera vertical adjustment plate, allowing for adjustment of the camera's verticality. This results in more precise image stitching and improved accuracy in subsequent printing jobs.
[0018] In the printing process of this invention, the printing carriage will move relative to the product position as determined by the visual positioning component in the visual positioning mechanism. The positioning method is as follows: the control end controls the motor to start and its output end drives the second bevel gear to rotate. At this time, the first bevel gear meshing with it drives the transmission screw to rotate. Thus, the screw sleeve interacting with the screw can move the connecting frame and the printing carriage in coordination with the guide rail, thereby making the product printing operation more convenient. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a partial 3D schematic diagram;
[0022] Figure 3 This is a top view schematic diagram of the displacement mechanism;
[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the visual positioning mechanism.
[0024] The labels in the attached diagram are as follows: 1. Printer body; 2. Conveyor belt; 3. Fixed bracket; 4. Displacement mechanism; 41. Preset groove; 42. Transmission screw; 43. First bevel gear; 44. Second bevel gear; 45. Motor; 46. Screw sleeve; 47. Connecting bracket; 48. Guide rail; 5. Printing carriage; 6. Vision positioning mechanism; 61. Vision mounting backplate; 62. Vision height adjustment plate; 63. Vision height adjustment block; 64. Camera; 65. Camera vertical adjustment plate; 66. Optical lens; 67. Light source mounting plate; 68. Light source mounting base; 69. Light source. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] This specific embodiment is a positioning mechanism for a streamlined UV printer, and its structural schematic diagram is shown below. Figures 1 to 4As shown, the device includes a printer body 1, a conveyor belt 2 mounted on top of the printer body 1, and a fixed bracket 3 mounted on the upper part of the conveyor belt 2 above the printer body 1. Displacement mechanisms 4 are mounted on both sides of the fixed bracket 3. Each displacement mechanism 4 includes a connecting frame 47, and a printing carriage 5 is fixedly mounted on one side of the connecting frame 47. A vision positioning mechanism 6 is mounted on the lower side of the printing carriage 5. The displacement mechanism 4 includes a preset groove 41, which is located on one side of the fixed bracket 3. A transmission screw 42 is mounted in the middle of the preset groove 41, and a first bevel gear 43 is fixedly mounted around one end of the transmission screw 42. A second bevel gear 44 meshes with one side of the first bevel gear 43, and the first bevel gear 43 and the second bevel gear 44 are connected by a meshing transmission. The output end of the motor 45 is installed in the middle of the 4. A lead screw sleeve 46 is screwed around one side of the lead screw 42, and a connecting frame 47 is fixed on one side of the lead screw sleeve 46. A guide rail 48 is provided on the other side of the fixed frame 3. The guide rail 48 and the printing head 5 are connected by a movable guide. During the printing operation, the printing head 5 will move relative to the product position located by the vision positioning component in the vision positioning mechanism 6. The positioning method is that the control end controls the motor 45 to start its output end to rotate the second bevel gear 44. At this time, the first bevel gear 43 meshing with it rotates the lead screw 42. Thus, the lead screw sleeve 46 that interacts with the lead screw can move the connecting frame 47 and the printing head 5 in coordination with the guide rail 48, thereby making the product printing operation more convenient.
[0027] The vision positioning mechanism 6 includes a vision mounting backplate 61, which is installed on one side of the bottom of the printing carriage 5. The vision mounting backplate 61 is fixedly installed on the bottom side of the printing carriage 5 using a threaded assembly, which includes a threaded groove and a bolt rod. A vision height adjustment plate 62 is installed at the front end of the vision mounting backplate 61, and vision height adjustment blocks 63 are provided on both sides of the vision height adjustment plate 62. The vision height adjustment plate 62 is connected to the vision mounting backplate 61 by a threaded connection formed between the vision height adjustment blocks 63 on both sides. Threaded holes are provided on both sides of the vision mounting backplate 61. A light source mounting plate 67 is mounted on the side, and a camera vertical adjustment plate 65 is set above the two light source mounting plates 67. A camera 64 is mounted in the middle of the camera vertical adjustment plate 65, and an optical lens 66 is connected to the end of the camera 64. The camera 64 and the optical lens 66 are connected to the camera vertical adjustment plate 65 by a threaded connection. A light source mounting base 68 is fixed to the bottom of the two light source mounting plates 67, and a light source 69 is mounted below the light source mounting base 68. The operator can continuously feed the material according to the linear transmission speed of the conveyor belt 2 on the printer body 1. The camera 64 can monitor the material to be printed conveyed on the conveyor belt 2. The product undergoes continuous scanning (it's worth noting that the camera 64 in this solution is a commonly used industrial line scan camera, which typically features high resolution and high speed. It acquires a complete image of the object through scanning, making it suitable for visual positioning). After scanning, the data is sent to the vision system for calculation. The algorithm identifies the scanned product's shape and its corresponding position on the conveyor belt 2. Then, when the product reaches below the printing head 5, the printing head 5 matches the pattern to be printed to the desired position on the product. Compared to existing UV printers on production lines, this visual positioning method solves the problem of inaccurate product positioning. This solution addresses the issue of material savings and eliminates the need for secondary processing, improving work efficiency and saving time. Simply place the product on the conveyor belt 2 of the production line for precise printing. It is portable and practical. During subsequent use, personnel can adjust the height of the camera 64 using the visual height adjustment plate 62 and visual height adjustment block 63 mounted on the visual mounting backplate 61. This allows adjustment of the line scan camera's focus on the product. Furthermore, the camera 64 and optical lens 66 are screwed together and mounted on the camera vertical adjustment plate 65, thereby adjusting the verticality of the camera 64 and making the scanning image stitching more accurate, thus improving the realism and accuracy of subsequent printing operations.
[0028] Working Principle: During printing, the printing carriage 5 moves relative to the product position as determined by the visual positioning component in the visual positioning mechanism 6. The positioning method involves the control unit starting the motor 45, which drives the second bevel gear 44 to rotate. Simultaneously, the first bevel gear 43 meshes with it, driving the transmission screw 42. This causes the screw sleeve 46, acting on the screw, to move along with the mounting bracket 47 and the printing carriage 5, guided by the guide rail 48. This facilitates the printing process. Furthermore, the operator can continuously feed the product according to the linear transmission speed of the conveyor belt 2 on the printer body 1. The camera 64 continuously scans the products to be printed on the conveyor belt 2. Notably, the camera 64 in this solution is a commonly used industrial line scan camera. Line scan cameras typically feature high resolution and high speed. They acquire complete images of objects through scanning, making them suitable for visual positioning. After scanning, the images are fed to the vision system for calculation and algorithm processing. After the program identifies the scanned product's shape and its corresponding position on the conveyor belt 2, it can then match the printed pattern to the desired printing position when the product reaches the printing head 5. Compared to existing UV printers, this new visual positioning method solves the problem of inaccurate product positioning, saves materials, eliminates the need for secondary processing, improves work efficiency, and saves time. Simply place the product on the conveyor belt 2 for accurate printing. It is portable and practical. In subsequent use, the height of the camera 64 can be adjusted using the visual height adjustment plate 62 and visual height adjustment block 63 mounted on the visual mounting back plate 61. This allows for adjustment of the line scan camera's focus on the product. Furthermore, the camera 64 and optical lens 66 are screwed together and mounted on the camera vertical adjustment plate 65, allowing for adjustment of the camera 64's verticality. This makes the scanning and image stitching of the camera 64 more accurate, thereby improving the accuracy of subsequent printing operations.
[0029] All technical features in this embodiment can be freely combined according to actual needs.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A positioning mechanism for a UV printer on a production line, comprising a printer body (1), characterized in that, A conveyor belt (2) is installed above the printer body (1), and a fixed bracket (3) is mounted on the upper part of the conveyor belt (2) above the printer body (1). Displacement mechanisms (4) are installed on both sides of the fixed bracket (3). The displacement mechanism (4) includes a connecting frame (47), and a printing carriage (5) is fixedly mounted on one side of the connecting frame (47). A vision positioning mechanism (6) is installed on the lower side of the printing carriage (5). The vision positioning mechanism (6) includes a vision mounting backplate (61), and the vision mounting backplate (61) is mounted on the bottom side of the printing carriage (5). A visual height adjustment plate (62) is installed at the front end of the device, and visual height adjustment blocks (63) are provided on both sides of the visual height adjustment plate (62). Light source mounting plates (67) are installed on both sides of the front end of the visual height adjustment plate (62), and a camera vertical adjustment plate (65) is provided above the two light source mounting plates (67). A camera (64) is installed in the middle of the camera vertical adjustment plate (65), and an optical lens (66) is connected to the end of the camera (64). A light source mounting base (68) is fixed at the bottom of the two light source mounting plates (67), and a light source (69) is installed below the light source mounting base (68).
2. The positioning mechanism for a UV printer on a production line according to claim 1, characterized in that, The vision mounting backplate (61) is fixedly mounted to the bottom side of the printing head (5) using a threaded assembly, wherein the threaded assembly includes a threaded groove and a bolt rod.
3. The positioning mechanism for a UV printer on a production line according to claim 1, characterized in that, The visual height adjustment plate (62) is connected by a threaded connection between the visual height adjustment blocks (63) on both sides and the visual mounting back plate (61).
4. The positioning mechanism for a UV printer on a production line according to claim 1, characterized in that, The visual mounting backplate (61) has threaded holes on both sides.
5. The positioning mechanism for a UV printer on a production line according to claim 1, characterized in that, The camera (64) and the optical lens (66) are both connected to the camera vertical adjustment plate (65) by means of threads.
6. The positioning mechanism for a UV printer on a production line according to claim 1, characterized in that, The displacement mechanism (4) includes a preset groove (41), which is located on one side of the fixed bracket (3). A transmission screw (42) is installed in the middle of the preset groove (41), and a first bevel gear (43) is fixedly provided around one section of the transmission screw (42). A second bevel gear (44) meshes with one side of the first bevel gear (43), and the output end of a motor (45) is installed in the middle of the second bevel gear (44). A screw sleeve (46) is screwed around one side of the transmission screw (42), and a connecting bracket (47) is fixedly provided on one side of the screw sleeve (46). A guide rail (48) is provided on the other side of the fixed bracket (3).
7. The positioning mechanism for a UV printer on a production line according to claim 6, characterized in that, The first bevel gear (43) and the second bevel gear (44) are meshing transmission connections.
8. The positioning mechanism for a UV printer on a production line according to claim 6, characterized in that, The guide rail (48) and the printing head (5) are connected by a movable guide.