Automatic positioning and printing device for semi-finished product of license plate
By combining drive components, positioning components, and limit components, and utilizing laser sensors and motor control, the problem of printing misalignment caused by inconsistent positions of semi-finished license plates on the conveyor belt was solved, achieving automated positioning and precise printing.
Patent Information
- Application Number
- CN202423144961.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The inconsistent positions of the semi-finished license plate products during conveyor belt transport caused the printing trajectory to deviate from the printing unit, resulting in printing misalignment.
An automatic positioning printing device, including a drive component, a positioning component, and a limit component, is adopted. The spacing between semi-finished products is measured by a laser sensor, and the motor drives the positioning component and the positioning roller to ensure accurate positioning and trajectory of the semi-finished products during the conveying process.
It achieves automated positioning of license plate semi-finished products, preventing lateral displacement and printing misalignment, and ensuring printing accuracy.
Smart Images

Figure CN223720415U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to printing device technical field especially, relate to a kind of automatic positioning printing device of license plate semi-finished product. BACKGROUND
[0002] License plate semi-finished product refers to intermediate product that has not been completed final processing in the process of making motor vehicle license plate. These semi-finished products usually have excellent properties such as durability, flexibility, impact resistance, and can be pre-printed with color patterns, watermarks and other operations according to customer requirements. Common license plate semi-finished products include electric vehicle license plates, new energy small vehicle license plates, motorcycle license plates, large car license plates, small car license plates and new energy large vehicle license plates, etc.
[0003] In related technology, during the processing of license plate semi-finished product, it needs to be placed on the conveying belt of the printing machine and transported to the printing unit for printing. Since the positions of the license plate semi-finished product entering the conveying belt surface for conveying are different, it is easy to cause the trajectory of the license plate semi-finished product conveying to deviate from the printing unit, resulting in misregistration of printing.
[0004] Therefore, it is necessary to provide an automatic positioning printing device for license plate semi-finished product to solve the above technical problems. SUMMARY
[0005] The utility model provides a kind of automatic positioning printing device for license plate semi-finished product, solve the problem that since the positions of the license plate semi-finished product entering the conveying belt surface for conveying are different, it is easy to cause the trajectory of the license plate semi-finished product conveying to deviate from the printing unit, resulting in misregistration of printing.
[0006] To solve the above technical problems, the utility model provides an automatic positioning printing device for license plate semi-finished product, comprising: a base, the inner side of the base is provided with a driving assembly, the surface of the driving assembly and the top of the base are provided with a positioning assembly, the surface of the driving assembly and the right side of the positioning assembly are provided with a limiting assembly, and the top of the base is fixedly installed with a printing machine main body near the right side;
[0007] The driving assembly comprises a bidirectional screw rod rotatably arranged in the inner side of the base, two moving blocks are sleeved on the surface of the bidirectional screw rod and are threadedly connected thereto, a first motor for driving the bidirectional screw rod to rotate is fixedly installed on the left side of the base, a moving plate is slidably arranged on the inner side of the base and on the front and rear sides of the bidirectional screw rod, two moving rods are fixedly installed on the surface of the moving plate, the other ends of the two moving rods on the same side penetrate the inner side of the base, and a moving frame is fixedly installed on the other ends.
[0008] The positioning assembly includes a positioning frame arranged on the surface of the moving frame and located on the top of the base, a plurality of positioning rollers are rotationally arranged on the inner top of the positioning frame, rotation shafts are rotationally arranged on the top of the positioning frame near the left side, first bevel gears are fixedly installed on the top ends of the rotation shafts, laser sensors are fixedly installed on the left side of the positioning frame, second motors are fixedly installed on the top of the positioning frame and located on the side of the first bevel gears, and second bevel gears are fixedly installed on the power output shafts of the second motors.
[0009] Preferably, the hinged rods are rotationally connected to the front and rear sides of the moving block, and the sides of the hinged rods away from the moving block are rotationally connected to the surface of the adjacent moving plate.
[0010] Preferably, two sliding rods are fixedly installed on the side of the moving frame near the base, and sliding holes are formed in the inner side of the base and can be slid by the sliding rods.
[0011] Preferably, the bottom ends of the rotation shafts are fixedly connected to the top ends of the adjacent positioning rollers, the second bevel gears are arranged in meshing relationship with the adjacent first bevel gears, and the positioning frames are arranged in an inclined manner.
[0012] Preferably, the limiting assembly includes limiting rods arranged on the surface of the moving frame and located on the right side of the positioning frame, the number of the limiting rods is three, the ends of the three limiting rods away from the moving frame penetrate into the inner side of the printing machine body and are fixedly installed with limiting frames, a plurality of limiting rollers are rotationally arranged on the inner side of the limiting frame, and the surfaces of the limiting rollers and the surface of the rightmost positioning roller are arranged on the same horizontal plane.
[0013] Preferably, a printing unit is arranged in the inner side of the printing machine body, a controller is arranged on the left side of the base near the center, a conveying unit is arranged on the inner side of the base near the top, the output end of the laser sensor is connected with the input end of the controller, and the output end of the controller is electrically connected with the input ends of the first motor and the second motor.
[0014] Compared with the related art, the automatic positioning and printing device for license plate semi-finished products has the following beneficial effects:
[0015] The utility model provides a kind of license plate semi-finished product automatic positioning printing device, by the mutual cooperation of each component of device arrangement, make the device in actual use process, license plate semi-finished product is placed in conveying unit top and is transported, license plate semi-finished product enters between two positioning frames, laser sensor measures and the spacing between license plate semi-finished product at this time, and the data transmission of laser sensor measurement is given controller, controller controls first motor and second motor start operating, to drive positioning assembly adhere license plate semi-finished product front and back two sides, to reach the purpose of positioning to packing box, automation control, prevent license plate semi-finished product left and right displacement problem, and the rotational direction of leftmost positioning roller is consistent with the rotational direction of conveying unit, ensure that license plate semi-finished product moves normally inside positioning frame. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 A preferred embodiment structure diagram of license plate semi-finished product automatic positioning printing device provided by the utility model is shown in the figure;
[0017] Figure 2 For Figure 1 The structure diagram of base side view cross section shown in the figure;
[0018] Figure 3 For Figure 1 The structure diagram of positioning frame side view shown in the figure.
[0019] Marked number in figure:10, base;20, drive assembly;21, two-way screw rod;22, moving block;23, first motor;24, moving plate;25, moving rod;26, moving frame;27, articulated rod;28, sliding rod;30, positioning assembly;31, positioning frame;32, positioning roller;33, rotating shaft;34, first bevel gear;35, laser sensor;36, second motor;37, second bevel gear;40, limiting assembly;41, limiting rod;42, limiting frame;43, limiting roller;50, printing machine main body;60, printing unit;70, controller;80, conveying unit. DETAILED DESCRIPTION
[0020] The utility model is further described below in connection with the drawings and embodiment.
[0021] Please combine with Figure 1 、 Figure 2 、 Figure 3 Among them, Figure 1 A preferred embodiment structure diagram of license plate semi-finished product automatic positioning printing device provided by the utility model is shown in the figure; Figure 2 For Figure 1 The structure diagram of base side view cross section shown in the figure; Figure 3 For Figure 1The structure diagram of the side view of the shown positioning frame. A license plate semi-finished product automatic positioning and printing device, comprising: a base 10, a driving assembly 20 is arranged on the inner side of the base 10, a positioning assembly 30 is arranged on the surface of the driving assembly 20 and located at the top of the base 10, a limiting assembly 40 is arranged on the surface of the driving assembly 20 and located at the right side of the positioning assembly 30, a printing machine main body 50 is fixedly installed at the top of the base 10 close to the right side;
[0022] The driving assembly 20 comprises a bidirectional screw rod 21 rotatably arranged on the inner side of the base 10, the bidirectional screw rod 21 is sleeved with two moving blocks 22 on the surface and is threadedly connected with the two moving blocks 22, a first motor 23 for driving the bidirectional screw rod 21 to rotate is fixedly installed on the left side of the base 10, a moving plate 24 is slidably arranged on the inner side of the base 10 and located at the front and rear sides of the bidirectional screw rod 21, two moving rods 25 are fixedly installed on the surface of the moving plate 24, and the other ends of the two moving rods 25 located on the same side penetrate through the inner side of the base 10 and are fixedly installed with a moving frame 26;
[0023] In the actual use process of the device, the license plate semi-finished product is placed on the top of the conveying unit 80 for conveying, the license plate semi-finished product enters between the two positioning frames 31, at this time the laser sensor 35 measures the distance between the license plate semi-finished product, and transmits the data measured by the laser sensor 35 to the controller 70, the controller 70 controls the first motor 23 and the second motor 36 to start running, the first motor 23 drives the bidirectional screw rod 21 to rotate, and through the threaded connection relationship with the moving blocks 22, drives the two moving blocks 22 to move in different directions, cooperates with the action of the hinged rod 27, drives the moving plate 24 to slide to the center, and the moving plate 24 drives the moving frame 26 to move towards the base 10 through the moving rod 25, so as to drive the positioning assembly 30 to fit the front and rear sides of the license plate semi-finished product, thereby achieving the purpose of positioning the packaging box, automatic control, and preventing the license plate semi-finished product from producing left and right displacement.
[0024] The positioning assembly 30 comprises a positioning frame 31 arranged on the surface of the moving frame 26 and located at the top of the base 10, a plurality of positioning rollers 32 are rotatably arranged on the inner top of the positioning frame 31, a rotating shaft 33 is rotatably arranged on the top of the positioning frame 31 close to the left side, a first bevel gear 34 is fixedly installed on the top end of the rotating shaft 33, a laser sensor 35 is fixedly installed on the left side of the positioning frame 31, a second motor 36 is fixedly installed on the top of the positioning frame 31 and located on one side of the first bevel gear 34, and a second bevel gear 37 is fixedly installed on the power output shaft of the second motor 36;
[0025] The second motor 36 starts to work, drives the rotating shaft 33 to rotate through the meshing arrangement of the first bevel gear 34 and the second bevel gear 37, and drives the leftmost positioning roller 32 to rotate, and the rotating direction is consistent with the rotating direction of the conveying unit 80, so that the license plate semi-finished product can be normally moved in the positioning frame 31, and the moving track of the license plate semi-finished product can be limited, and the license plate semi-finished product and the printing unit 60 are prevented from being misaligned.
[0026] The hinged rods 27 are rotatably connected to the front and rear sides of the moving block 22.
[0027] The moving frame 26 is fixedly installed with two sliding rods 28 on the side close to the base 10.
[0028] The rotating shaft 33 is fixedly connected to the top end of the adjacent positioning roller 32, the second bevel gear 37 is meshingly arranged with the adjacent first bevel gear 34, and the positioning frame 31 is arranged in an inclined manner.
[0029] The limiting assembly 40 comprises three limiting rods 41 arranged on the surface of the moving frame 26 and located on the right side of the positioning frame 31, the ends, away from the moving frame 26, of the three limiting rods 41 on the same side penetrate into the inside of the printing machine body 50 and are fixedly installed with limiting frames 42, and the limiting frames 42 are rotatably provided with a plurality of limiting rollers 43 on the inside.
[0030] When the license plate semi-finished product enters the inside of the printing machine body 50 and is processed by the printing unit 60, the limiting rollers 43 on the inside of the limiting frame 42 are attached to the front and rear sides of the license plate semi-finished product, so that the license plate semi-finished product is limited, and the license plate semi-finished product is prevented from moving during printing, so that the printing ghosting and misalignment are avoided.
[0031] The printing machine body 50 is provided with the printing unit 60, the base 10 is provided with the controller 70 on the left side close to the center, and the inside of the base 10 is provided with the conveying unit 80 close to the top, the output end of the laser sensor 35 is connected to the input end of the controller 70, and the output end of the controller 70 is electrically connected to the input ends of the first motor 23 and the second motor 36.
[0032] The working principle of the license plate semi-finished product automatic positioning and printing device is as follows:
[0033] The first step: during actual use, the device places the license plate semi-finished product on the top of the conveying unit 80 for conveying, the license plate semi-finished product enters between the two positioning frames 31, at this time, the laser sensor 35 measures the distance between the license plate semi-finished product and the laser sensor 35, and transmits the data measured by the laser sensor 35 to the controller 70, the controller 70 controls the first motor 23 and the second motor 36 to start running, the first motor 23 drives the bidirectional screw rod 21 to rotate, and through the threaded connection relationship with the moving block 22, drives the two moving blocks 22 to move in different directions, cooperates with the action of the hinged rod 27, drives the moving plate 24 to slide to the center, the moving plate 24 drives the moving frame 26 to move to the base 10 through the moving rod 25, so as to drive the positioning assembly 30 to fit the front and back sides of the license plate semi-finished product, so as to achieve the purpose of positioning the packaging box, automatic control, and prevent the license plate semi-finished product from moving left and right.
[0034] The second step: at the same time, the second motor 36 starts to work, through the meshing setting of the first bevel gear 34 and the second bevel gear 37, drives the rotating shaft 33 to rotate, the rotating shaft 33 drives the leftmost positioning roller 32 to rotate, and the rotating direction is consistent with the rotating direction of the conveying unit 80, which not only can ensure that the license plate semi-finished product moves normally inside the positioning frame 31, but also can limit the track of the license plate semi-finished product, and avoid the position error between the license plate semi-finished product and the printing unit 60.
[0035] Compared with the related art, the license plate semi-finished product automatic positioning and printing device has the following beneficial effects:
[0036] Through the mutual cooperation of various parts of the device, during actual use, the device places the license plate semi-finished product on the top of the conveying unit 80 for conveying, the license plate semi-finished product enters between the two positioning frames 31, at this time, the laser sensor 35 measures the distance between the license plate semi-finished product and the laser sensor 35, and transmits the data measured by the laser sensor 35 to the controller 70, the controller 70 controls the first motor 23 and the second motor 36 to start running, so as to drive the positioning assembly 30 to fit the front and back sides of the license plate semi-finished product, so as to achieve the purpose of positioning the packaging box, automatic control, and prevent the license plate semi-finished product from moving left and right, and the rotating direction of the leftmost positioning roller 32 is consistent with the rotating direction of the conveying unit 80, which ensures that the license plate semi-finished product moves normally inside the positioning frame 31.
[0037] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process conversion obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.
Claims
1. A license plate semi-finished product automatic positioning and printing device, characterized in that, Include: The base (10) is provided with a drive assembly (20) inside, the surface of the drive assembly (20) and the top of the base (10) is provided with a positioning assembly (30), the surface of the drive assembly (20) and the right side of the positioning assembly (30) is provided with a limiting assembly (40), the top of the base (10) is fixedly installed with a printer body (50) near the right side; The drive assembly (20) includes a two-way threaded screw rod (21) rotatably arranged in the inner side of the base (10), the two-way threaded screw rod (21) is sleeved with two moving blocks (22) on the surface and is threadedly connected with them, the left side of the base (10) is fixedly installed with a first motor (23) for driving the two-way threaded screw rod (21) to rotate, the inner side of the base (10) and the front and back sides of the two-way threaded screw rod (21) are slidably provided with a moving plate (24), the surface of the moving plate (24) is fixedly installed with two moving rods (25), the other ends of the two moving rods (25) on the same side penetrate the inner side of the base (10) and are fixedly installed with a moving frame (26); The positioning assembly (30) includes a positioning frame (31) arranged on the surface of the moving frame (26) and located on the top of the base (10), a plurality of positioning rollers (32) are rotatably arranged on the inner top of the positioning frame (31), rotating shafts (33) are rotatably arranged on the top of the positioning frame (31) near the left side, first bevel gears (34) are fixedly installed on the top ends of the rotating shafts (33), laser sensors (35) are fixedly installed on the left side of the positioning frame (31), second motors (36) are fixedly installed on the top of the positioning frame (31) and located on one side of the first bevel gear (34), and second bevel gears (37) are fixedly installed on the power output shafts of the second motors (36).
2. The automatic positioning printing device for license plate semi-product according to claim 1, characterized in that, The front and back sides of the moving block (22) are rotatably connected with a hinged rod (27), and the side away from the moving block (22) of the hinged rod (27) is rotatably connected with the surface of the adjacent moving plate (24).
3. The automatic positioning printing device for license plate semi-product according to claim 1, characterized in that, The side close to the base (10) of the moving frame (26) is fixedly installed with two sliding rods (28), and the inner side of the base (10) is provided with a sliding hole for the front and back sliding of the sliding rod (28).
4. The automatic positioning printing device for license plate semi-product according to claim 1, characterized in that, The bottom end of the rotating shaft (33) is fixedly connected with the top end of the adjacent positioning roller (32), the second bevel gear (37) is meshingly arranged with the adjacent first bevel gear (34), and the positioning frame (31) is inclined.
5. The automatic positioning printing device for license plate semi-product according to claim 1, characterized in that, The limiting assembly (40) includes a limiting rod (41) arranged on the surface of the moving frame (26) and located on the right side of the positioning frame (31), and the number of the limiting rod (41) is three, the ends away from the moving frame (26) of the three limiting rods (41) on the same side penetrate the inner side of the printer body (50) and are fixedly installed with a limiting frame (42), a plurality of limiting rollers (43) are rotatably arranged in the inner side of the limiting frame (42), and the surfaces of the limiting rollers (43) and the surface of the rightmost positioning roller (32) are arranged on the same horizontal plane.
6. The automatic letter plate semi-product positioning and printing device according to claim 1, characterized in that, The inside of the printing machine body (50) is provided with a printing unit (60), the left side of the base (10) is provided with a controller (70) near the center, the inside of the base (10) is provided with a conveying unit (80) near the top, the output end of the laser sensor (35) is connected with the input end of the controller (70), and the output end of the controller (70) is electrically connected with the input end of the first motor (23) and the second motor (36).