Detection and separation device for license plate silk-screen printing

Abstract

The utility model provides a detection and separation device for license plate silk-screen printing, which comprises a frame body provided with a position sensor; the transmission assembly is arranged on the frame body, a weighing sensor used for detecting the weight of the license plate is arranged on the transmission assembly, and a bearing plate is arranged at the top end of the weighing sensor; the license plate taking assembly is arranged on the frame body, electrically connected with the position sensor and used for sucking the license plates on the top layer of the tray and placing the sucked license plates on the bearing plate; the license plate separation assembly is arranged on the frame body, is located above the transmission assembly and comprises an air nozzle; and the air nozzle is used for blowing air to a gap between the license plate on the top layer of the tray and the license plate below the top layer of the tray so as to separate the license plate on the top layer of the tray from the license plate below the top layer of the tray. The accuracy of the license plate placing position is improved, operation is convenient and fast, the accuracy is high, and therefore the efficiency of license plate screen printing is improved.

Description

Technical Field

[0001] The present application relates to the technical field of license plate screen printing, and in particular to a detection and separation device for license plate screen printing. Background Art

[0002] Screen printing refers to using a silk screen as a base and making a screen printing plate with images through a photosensitive platemaking method. Screen printing consists of five major elements: screen printing plate, scraper, ink, printing table and substrate. Printing is based on the basic principle that the mesh holes of the image part of the screen printing plate can pass the ink, while the mesh holes of the non-image part cannot pass the ink. When printing, pour ink on one end of the screen printing plate, use a scraper to apply a certain pressure to the ink part on the screen printing plate, and move at a constant speed toward the other end of the screen printing plate. During the movement, the ink is squeezed from the mesh holes of the image part to the substrate by the scraper.

[0003] In the process of making license plates using screen printing technology, the license plates need to be manually placed into the screen printing tooling. However, due to the gravity during the stacking process, the license plates are tightly bonded to each other, which makes it easy for humans to obtain multiple license plates at one time when taking and placing the license plates. The multiple license plates that are bonded together are then manually separated one by one, and finally the separated single license plates are placed into the screen printing tooling for screen printing. This is not only cumbersome to operate, but also time-consuming and labor-intensive, resulting in low screen printing efficiency for license plates. Utility Model Content

[0004] The present application provides a detection and separation device for license plate screen printing, which is used to solve the technical problems described in the above background technology.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] The present application provides a detection and separation device for license plate screen printing, comprising:

[0007] A frame, wherein a position sensor is arranged on the frame;

[0008] A transmission component, wherein the transmission component is arranged on the frame and a weighing sensor for detecting the weight of the license plate is arranged on the transmission component, and a bearing plate is arranged on the top of the weighing sensor;

[0009] A license plate taking component, which is disposed on the frame and electrically connected to the position sensor, and is used to suck the license plate on the top layer of the tray and place the sucked license plate on the carrying plate;

[0010] A license plate separation component is arranged on the frame, located above the transmission component and includes an air nozzle; the air nozzle is used to blow air into the gap between the license plate on the top layer of the tray and the license plate below the top layer of the tray to separate the license plate on the top layer of the tray from the license plate below the top layer of the tray.

[0011] Optionally, a toothed plate is provided on the frame for scraping off the license plate below the license plate on the top layer of the tray when the license plate retrieval assembly absorbs the license plate on the top layer of the tray.

[0012] Optionally, the card taking assembly includes a connecting plate, a cylinder and a vacuum tube;

[0013] The frame is provided with two slide rails which are parallel to each other and correspond to the two ends of the connecting plate in the length direction. The connecting plate slides vertically in the corresponding slide rails at both ends along its length direction through driving members. The cylinder body of the cylinder is arranged on the lower surface of the connecting plate. A fixing frame is arranged on the telescopic end of the bottom end of the cylinder. The vacuum tube is arranged on the fixing frame. A suction cup is arranged at one end of the vacuum tube for sucking up the license plate on the top layer of the tray.

[0014] Optionally, the driving member includes a driving motor, two synchronous wheels and a synchronous belt;

[0015] The driving motor is arranged on the frame, one of the synchronous wheels is sleeved on the output shaft of the driving motor, and the other synchronous wheel is rotatably arranged on the frame, the synchronous belt is sleeved on the two synchronous wheels, and the connecting plate is respectively provided with sliders matching the two slide rails at both ends along its length direction, and the connecting plate is fixed on the synchronous belt.

[0016] Optionally, there are multiple vacuum tubes, and the multiple vacuum tubes are arranged on the fixing frame at equal intervals, and one end of each vacuum tube away from the suction cup is used for connecting to a vacuum pump.

[0017] Optionally, a contact rod is hinged on the frame and a height sensor electrically connected to the cylinder is provided, and one end of the contact rod close to the height sensor can contact or separate from the height sensor.

[0018] Optionally, the license plate separation assembly further includes an air pipe;

[0019] One end of the air pipe passes through the frame and is connected to the air nozzle, and the other end of the air pipe is used to connect to the air pump.

[0020] The detection and separation device for license plate screen printing provided in the present application has an air nozzle facing the gap between adjacent license plates in the tray. In the process of the license plate removing component sucking the license plate on the top layer of the tray, air is blown into the gap between the license plate on the top layer of the tray and the license plate below the top layer of the tray through the air nozzle of the license plate separation component. The purpose is to separate the license plate on the top layer of the tray from the license plate below the top layer of the tray, so that the license plate removing component can suck up only the single license plate on the top layer of the tray as much as possible, and then the position of the license plate sucked by the license plate removing component is detected by the position sensor, so that the license plate can be accurately placed on the carrier plate, thereby improving the accuracy of the license plate placement position, and the weighing sensor is used to check the license plate placed on the carrier plate. The quality of the license plate is detected. If the quality of the license plate is less than or equal to the preset weight threshold of each license plate, it means that the license plate placed on the carrier plate is a single piece, and the license plate on the carrier plate is then transmitted to the screen printing tooling through the transmission component for screen printing; conversely, if the quality of the license plate detected by the weighing sensor is greater than or equal to the preset weight threshold of each license plate, it means that there are multiple license plates placed on the carrier plate, and the excess license plates are removed from the license plate removal component, and the above-mentioned license plate removal and license plate separation process is repeated again to ensure that the license plate entering the screen printing tooling is a single piece. The above process is not only convenient to operate, but also has high accuracy, thereby improving the efficiency of license plate screen printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of a detection and separation device for screen printing of license plates provided in one embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of a detection and separation device for license plate screen printing provided in another embodiment of the present application;

[0024] Figure 3 A schematic diagram of the structure of a detection and separation device for license plate screen printing provided in another embodiment of the present application;

[0025] Figure 4 An embodiment of the present application provides Figure 2 Top view in the direction of A;

[0026] Figure 5 An embodiment of the present application provides Figure 2 The main view in the B direction;

[0027] Figure 6 A schematic diagram of the structure of a tooth plate, a contact rod and a height sensor provided in one embodiment of the present application.

[0028] In the figure: 100, frame; 101, position sensor; 102, tooth plate; 103, slide rail; 104, contact rod; 105, height sensor; 200, transmission component; 201, weighing sensor; 2011, bearing plate; 300, license plate removal component; 301, connecting plate; 3011, slider; 302, cylinder; 3021, fixing frame; 303, vacuum tube; 3031, suction cup; 400, tray; 401, license plate; 500, license plate separation component; 501, air nozzle; 502, air pipe; 600, driving part; 601, driving motor; 602, synchronous wheel; 603, synchronous belt. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application is clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work also fall within the scope of protection of the present application.

[0030] refer to Figures 1 to 6 The present application provides a detection and separation device for license plate screen printing, comprising:

[0031] The frame 100 is provided with a position sensor 101; wherein, the specification and model of the position sensor 101 can be set according to actual needs, therefore, the present application does not make any specific limitation thereto.

[0032] The transmission component 200 is arranged on the frame 100 and is provided with a weighing sensor 201 for detecting the weight of the license plate, and a supporting plate 2011 is provided on the top of the weighing sensor 201; wherein, the transmission component 200 can be a belt conveyor or other equipment capable of transmission, which can be selected according to actual needs, and the present application does not make specific limitations on it. The transmission component 200 is connected to the screen printing tooling to transmit the license plate on the supporting plate 2011 to the screen printing tooling for printing.

[0033] The license plate retrieval component 300 is arranged on the frame 100, located above the transmission component 200 and electrically connected to the position sensor 101, and is used to absorb the license plate 401 on the top layer of the tray 400 and place the absorbed license plate 401 on the supporting plate 2011; wherein, when the position sensor 101 detects that the license plate 401 absorbed by the license plate retrieval component 300 reaches directly above the supporting plate 2011, the license plate retrieval component 300 moves the absorbed license plate 401 down to the supporting plate 2011, thereby accurately placing the absorbed license plate 401 on the supporting plate 2011.

[0034] The license plate separation component 500 is arranged on the frame 100 and includes an air nozzle 501; the air nozzle 501 is used to blow air into the gap between the license plate 401 on the top layer of the tray 400 and the license plate 401 below the top layer of the tray 400, so as to separate the license plate 401 on the top layer of the tray 400 from the license plate 401 below the top layer of the tray 400, thereby improving the efficiency of separating the license plate 401, so that the license plate 401 sucked by the license plate removal component 300 is as single-piece license plate 401 as possible.

[0035] The detection and separation device for license plate screen printing provided in the present application has an air nozzle 501 facing the gap between adjacent license plates 401 in the tray 400. When the license plate removal component 300 absorbs the license plate 401 on the top layer of the tray 400, air is blown into the gap between the license plate 401 on the top layer of the tray 400 and the license plate 401 below the top layer of the tray 400 through the air nozzle 501 of the license plate separation component 500. The purpose is to separate the license plate 401 on the top layer of the tray 400 from the license plate 401 below the top layer of the tray 400, so that the license plate removal component 300 absorbs only the single license plate on the top layer of the tray 400 as much as possible, and then the position of the license plate 401 absorbed by the license plate removal component 300 is detected by the position sensor 101, so that the license plate 401 is accurately placed on the carrier plate 2011, thereby improving the accuracy of the placement position of the license plate 401 and the placement of the license plate 401 through the weighing sensor 201. The mass of the license plate 401 on the carrier plate 2011 is detected. If the mass of the license plate 401 is less than or equal to the preset weight threshold of each license plate 401, it means that the license plate 401 placed on the carrier plate 2011 is a single piece, and then the license plate 401 on the carrier plate 2011 is transmitted to the screen printing tooling through the transmission component 200 for screen printing. On the contrary, if the mass of the license plate 401 detected by the weighing sensor 201 is greater than or equal to the preset weight threshold of each license plate 401, it means that the license plate 401 placed on the carrier plate 2011 is multiple pieces, and the excess license plates 401 are removed from the carrier plate 2011, and the above-mentioned process of removing the plates and separating the license plates 401 is repeated again to ensure that the license plates 401 entering the screen printing tooling are a single piece. The above-mentioned process is not only convenient to operate, but also has high accuracy, thereby improving the efficiency of screen printing of the license plates 401.

[0036] In some embodiments, reference Figure 5 The frame 100 in the present application is provided with a tooth plate 102 for scraping off the license plate below the license plate 401 on the top layer of the tray 400 when the license plate retrieval assembly 300 absorbs the license plate 401 on the top layer of the tray 400. The teeth on the tooth plate 102 can apply a friction force to the side wall of the license plate 401 in the process of the license plate retrieval assembly 300 absorbing the license plate in the opposite direction of the absorbing direction of the license plate 401, so that the license plate 401 below the license plate 401 on the top layer of the tray 400 is separated from the license plate 401 on the top layer of the tray 400, so that the license plate 401 absorbed by the license plate retrieval assembly 300 is as single-piece as possible, thereby improving the efficiency of separating the license plate 401.

[0037] In some embodiments, reference Figure 1 and Figure 2 The license plate removal component 300 in the present application includes a connecting plate 301, a cylinder 302 and a vacuum tube 303; specifically, the frame 100 is provided with two slide rails 103 which are parallel to each other and correspond to the two ends of the length direction of the connecting plate 301 one by one, and the bottom end of the connecting plate 301 slides in the corresponding slide rail 103 through the driving member 600, the cylinder body of the cylinder 302 is arranged on the lower surface of the connecting plate 301, and a fixed frame 3021 is arranged on the telescopic end of the bottom end of the cylinder 302, and the vacuum tube 303 is arranged on the fixed frame 3021, and a suction cup 3031 is arranged at one end of the vacuum tube 303 for sucking up the license plate 401 on the top layer of the tray 400.

[0038] In the above embodiment, the connecting plate 301 is driven to slide in the slide rail 103 by the driving member 600, so that the connecting plate 301 and the telescopic end of the cylinder 302 on its lower surface are located directly above the license plate 401 on the top layer of the tray 400, and then the extension of the telescopic end of the cylinder 302 drives the fixing frame 3021 on its telescopic end and the vacuum tube 303 on the fixing frame 3021 to move vertically downward until the suction cup 3031 at the bottom end of the vacuum tube 303 contacts the top surface of the license plate 401 on the top layer of the tray 400, and then the suction cup 3031 sucks the license plate 401 on the top layer of the tray 400 tightly by evacuating the vacuum tube 303. The license plate 401 on the top layer of the tray 400 is then sucked up by contracting the telescopic end of the cylinder 302, and the connecting plate 301 is driven to slide in the slide rail 103 by the driving member 600, so that the license plate 401 sucked up by the suction cup 3031 is directly above the supporting plate 2011, and then the license plate 401 sucked up by the suction cup 3031 is placed on the supporting plate 2011 by extending the cylinder 302, and the vacuum between the suction cup 3031 and the license plate 401 is released, so that the license plate 401 is separated from the suction cup 3031 and stays on the supporting plate 2011, thereby realizing the convenience of detecting, separating and taking and placing the license plate 401 and the accuracy of the taking and placing position.

[0039] In some embodiments, reference Figure 1 Figure 2 and Figure 3 The driving component 600 in the present application includes a driving motor 601, two synchronous wheels 602 and a synchronous belt 603; specifically, the driving motor 601 is arranged on the frame 100, one of the synchronous wheels 602 is sleeved on the output shaft of the driving motor 601, and the other synchronous wheel 602 is rotatably arranged on the frame 100, and the synchronous belt 603 is sleeved on the two synchronous wheels 602, and the connecting plate 301 is respectively provided with sliders 3011 matching the two slide rails 103 at both ends along its length direction, and the connecting plate 301 is fixed on the synchronous belt 603.

[0040] In the above embodiment, the synchronous wheel 602 mounted thereon is driven to rotate by the driving motor 601, and the synchronous wheel 602 mounted on the output shaft of the driving motor 601 drives another synchronous wheel 602 connected to it by the synchronous belt 603 to rotate during the rotation. During this process, the synchronous belt 603 moves, and the connecting plate 301 on the synchronous belt 603 moves synchronously with the synchronous belt 603. During the movement of the connecting plate 301, the slider 3011 arranged thereon moves in the slide rail 103 along the length direction of the slide rail 103, thereby realizing the sliding of the slider 3011 on the synchronous belt 603 in the slide rail 103, realizing the adjustment of the position of the connecting plate 301 in the slide rail 103, and realizing the adjustment of the position of the connecting plate 301 relative to the tray 400, so that the card taking process is more accurate.

[0041] In some embodiments, reference Figure 1 , Figure 2 and Figure 3 There are multiple vacuum tubes 303 in the present application, and the multiple vacuum tubes 303 are evenly spaced on the fixing frame 3021, and one end of each vacuum tube 303 away from the suction cup 3031 is used to connect to the vacuum pump.

[0042] In the above embodiment, the vacuum pump is turned on so that the air between the suction cup 3031 and the license plate 401 on the top layer of the tray 400 is discharged through the suction cup 3031, the vacuum tube 303 and the air outlet of the vacuum pump until the space between the suction cup 3031 and the license plate 401 on the top layer of the tray 400 is evacuated, so that the license plate 401 on the top layer of the tray 400 is tightly attached to the suction cup 3031, thereby achieving the suction of the license plate 401 on the top layer of the tray 400 by the suction cup 3031, and the multiple vacuum tubes 303 enable the license plate 401 to be sucked by the multiple suction cups 3031 at the same time, thereby improving the efficiency of taking and placing the license plate 401.

[0043] In some embodiments, reference Figure 4In the present application, a contact rod 104 and a height sensor 105 electrically connected to the cylinder 302 are hingedly connected to the frame 100 , and one end of the contact rod 104 close to the height sensor 105 can contact or separate from the height sensor 105 .

[0044] In the above embodiment, the height sensor 105 is used to detect whether the license plate 401 reaches the preset height position. When the top license plate 401 on the tray 400 is lifted to the preset height position by the license plate lifting device, the top license plate 401 abuts against the bottom end of the contact rod 104 to rotate the contact rod 104 so that the top end of the contact rod 104 is separated from the height sensor 105. When the position of the top license plate 401 on the tray 400 is lower than the preset position, the top end of the contact rod 104 contacts the height sensor 105. In this way, the lifting can be stopped every time the license plate 401 on the tray 400 is lifted to a certain position, and then the telescopic end of the cylinder 302 is extended so that the suction cup 3031 on the telescopic end can suck up the license plate 401 on the top layer of the tray 400 lifted to the determined position, and the license plate 401 is detected and separated. The above process realizes the accurate detection of the lifting height of the license plate 401 and timely sucks up the license plate 401 for detection and separation. In addition, when the suction cup 3031 sucks up the license plate 401 on the top layer of the tray 400, the contact rod 104 is driven to continue rotating, and the end of the contact rod 104 in contact with the license plate 401 is raised. When the license plate 401 is sucked up to a certain height, the cylinder 302 drives the suction cup 3031 to move the license plate 401 out of the tray 400 in the horizontal direction. When the license plate 401 on the top layer of the tray 400 is sucked up by the suction cup 3031, an upward force is applied to the contact rod 104 (the end in contact with the license plate 401 on the top layer of the tray 400), and the corresponding contact rod 104 (the end in contact with the license plate 401 on the top layer of the tray 400) also gives a downward knocking force to the license plate 401 on the top layer of the tray 400, so that the license plate 401 on the top layer of the tray 400 is separated from the license plate 401 below the license plate 401 on the top layer of the tray 400, thereby improving the separation efficiency of the license plates.

[0045] In some embodiments, reference Figure 4 The license plate separation assembly in the present application further includes an air pipe 502; specifically, one end of the air pipe 502 passes through the frame 100 and is connected to the air nozzle 501, and the other end of the air pipe 502 is used to connect to the air pump.

[0046] In the above embodiment, the gas drawn into the air pump is ejected through the air pipe 502 and the air nozzle 501 connected to the air pipe 502 into the gap between the license plate 401 on the top layer of the tray 400 and the license plate 401 below the top layer of the tray 400, thereby achieving separation of the license plate 401 on the top layer of the tray 400 and the license plate 401 below the top layer of the tray 400, further improving the separation effect of the license plate 401, so that the license plate entering the supporting plate 2011 is as single-piece license plate 401 as possible, ensuring the separation efficiency of the license plate 401.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A detection and separation device for license plate screen printing, characterized in that: include: A frame (100), wherein a position sensor (101) is arranged on the frame (100); A transmission component (200), the transmission component (200) being arranged on the frame (100) and having a weighing sensor (201) for detecting the weight of the license plate arranged thereon, and a bearing plate (2011) being arranged at the top end of the weighing sensor (201); a license plate retrieval component (300), the license plate retrieval component (300) being arranged on the frame (100), being located above the transmission component (200) and being electrically connected to the position sensor (101), and being used for absorbing the license plate (401) on the top layer of the tray (400) and placing the absorbed license plate (401) on the carrying plate (2011); A license plate separation component (500) is arranged on the frame (100) and comprises an air nozzle (501); the air nozzle (501) is used to blow air into the gap between the license plate (401) on the top layer of the tray (400) and the license plate (401) below the top layer of the tray (400), so as to separate the license plate (401) on the top layer of the tray (400) from the license plate (401) below the top layer of the tray (400).

2. The detection and separation device for license plate screen printing according to claim 1, characterized in that: The frame (100) is provided with a toothed plate (102) for scraping off the license plate (401) below the license plate (401) on the top layer of the tray (400) when the license plate retrieval assembly (300) absorbs the license plate (401) on the top layer of the tray (400).

3. The detection and separation device for license plate screen printing according to claim 1, characterized in that: The card taking component (300) comprises a connecting plate (301), a cylinder (302) and a vacuum tube (303); The frame body (100) is provided with two slide rails (103) which are parallel to each other and correspond to the two ends of the connecting plate (301) in the length direction. The connecting plate (301) slides vertically in the corresponding slide rails (103) along the two ends of its length direction through a driving member (600). The cylinder body of the cylinder (302) is arranged on the lower surface of the connecting plate (301). A fixing frame (3021) is arranged on the telescopic end of the bottom end of the cylinder (302). The vacuum tube (303) is arranged on the fixing frame (3021). One end of the vacuum tube (303) is provided with a suction cup (3031) for sucking up the license plate (401) on the top layer of the tray (400).

4. The detection and separation device for license plate screen printing according to claim 3, characterized in that: The driving member (600) comprises a driving motor (601), two synchronous wheels (602) and a synchronous belt (603); The driving motor (601) is arranged on the frame (100), one of the synchronous wheels (602) is sleeved on the output shaft of the driving motor (601), and the other synchronous wheel (602) is rotatably arranged on the frame (100), the synchronous belt (603) is sleeved on the two synchronous wheels (602), and the connecting plate (301) is provided with sliders (3011) matching the two slide rails (103) at both ends along its length direction, and the connecting plate (301) is fixed on the synchronous belt (603).

5. The detection and separation device for license plate screen printing according to claim 3, characterized in that: There are a plurality of vacuum tubes (303), and the plurality of vacuum tubes (303) are arranged at equal intervals on the fixing frame (3021), and one end of each vacuum tube (303) away from the suction cup (3031) is used for connecting to a vacuum pump.

6. The detection and separation device for license plate screen printing according to claim 3, characterized in that: A contact rod (104) and a height sensor (105) electrically connected to the cylinder (302) are hingedly connected to the frame (100); an end of the contact rod (104) close to the height sensor (105) can contact or separate from the height sensor (105).

7. The detection and separation device for license plate screen printing according to any one of claims 1 to 6, characterized in that: The license plate separation assembly (500) further includes an air pipe (502); One end of the air pipe (502) passes through the frame (100) and is connected to the air nozzle (501), and the other end of the air pipe (502) is used to connect to the air pump.

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