Paperboard printing line image acquisition mechanism

Abstract

The utility model relates to the technical field of printed paperboard detection, in particular to a paperboard printing line image acquisition mechanism which comprises a conveying mechanism, a first object placing plate and a second object placing plate are arranged on the conveying mechanism, and a first lifting plate and a second lifting plate are arranged on the first object placing plate and the second object placing plate respectively in a sliding mode. A moving plate is arranged between the first lifting plate and the second lifting plate in a sliding mode, the moving plate is connected with a reciprocating assembly arranged on the first lifting plate, and the reciprocating assembly can drive the moving plate to reciprocate in the length direction of the conveying mechanism; the device further comprises an image acquisition assembly elastically arranged on the moving plate, and when the reciprocating assembly acts, the image acquisition assembly is matched with embedding grooves formed in the first lifting plate and the second lifting plate, so that the image acquisition assembly and a sample on the conveying mechanism can be kept relatively static; therefore, image acquisition can be carried out on the sample more clearly.

Description

Technical Field

[0001] This utility model relates to the field of printed paperboard inspection technology, specifically a paperboard printing line image acquisition mechanism. Background Technology

[0002] Image acquisition units in cardboard printing lines play a crucial role in the cardboard printing process, primarily used to inspect the image quality of printed materials and ensure that the patterns, colors, and positions of the printed materials meet standards.

[0003] Current image acquisition agencies mainly use fixed cameras to scan samples on the transport line to acquire images. However, the clarity of the acquired images is affected by the speed of the transport belt. Furthermore, the fixed cameras lack dynamic adjustment capabilities during transport, making it difficult to meet the requirements of high-speed printing inspection in terms of image clarity and resolution. This can easily lead to a decline in the quality of the final printed products. Summary of the Invention

[0004] The purpose of this invention is to provide an image acquisition mechanism for cardboard printing lines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cardboard printing line image acquisition mechanism includes: a transport mechanism, on which a first placement plate and a second placement plate are provided, and a first lifting plate and a second lifting plate are slidably disposed on the first placement plate and the second placement plate respectively;

[0007] A movable plate is slidably disposed between the first lifting plate and the second lifting plate. The movable plate is connected to a reciprocating assembly disposed on the first lifting plate. The reciprocating assembly can drive the movable plate to reciprocate along the length direction of the transport mechanism.

[0008] It also includes an image acquisition component that is flexibly mounted on the moving plate. When the reciprocating component moves, the image acquisition component cooperates with the fitting slots opened on the first lifting plate and the second lifting plate, so that the image acquisition component and the sample on the transport mechanism remain relatively stationary, thereby acquiring images of the sample.

[0009] The image acquisition mechanism for the cardboard printing line as described above: the reciprocating component includes pulleys rotatably mounted on the first lifting plate. Two sets of pulleys are symmetrically arranged along the length of the first lifting plate. A belt is provided between the two sets of pulleys. A protrusion is provided on the belt. The protrusion is connected to a reciprocating component slidably mounted on the first lifting plate.

[0010] The image acquisition mechanism for the cardboard printing line as described above: the reciprocating component includes a reciprocating plate slidably disposed on the first lifting plate, the reciprocating plate being connected to the moving plate, and a groove being provided on the side of the reciprocating plate facing the first lifting plate, and the protruding post being slidably disposed in the groove.

[0011] The image acquisition mechanism for the cardboard printing line as described above: The image acquisition component includes a movable rod slidably disposed in the fitting groove, a mounting plate connecting two sets of the movable rods, an image acquisition camera fixedly mounted on the side of the mounting plate facing the transport mechanism, and the mounting plate slidably connected to a fixed rod disposed on the movable plate, a spring sleeved on the fixed rod, one end of the spring abutting against the mounting plate, and the other end abutting against the movable plate.

[0012] The image acquisition mechanism for the cardboard printing line as described above: the fitting groove includes a reset groove, a first inclined groove, a transverse groove and a second inclined groove. The reset groove, the first inclined groove, the transverse groove and the second inclined groove form a parallelogram-like structure, and a guide is provided at the connection between the reset groove and the second inclined groove.

[0013] The cardboard printing line image acquisition mechanism described above: the guide includes a deflector plate rotatably installed at the connection between the reset groove and the second inclined groove, and the deflector plate is connected to the first lifting plate through a spring sheet.

[0014] As described above, the cardboard printing line image acquisition mechanism includes a height adjustment component on the first placement plate. The height adjustment component includes a lead screw rotatably mounted on the first placement plate, a threaded sleeve threadedly connected to the lead screw, and the threaded sleeve is connected to a positioning plate slidably mounted on the first placement plate. The positioning plate is connected to the first lifting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application, by incorporating a height adjustment component, allows for adjustment of the image acquisition camera's acquisition height to accommodate the printing inspection needs of cardboard of varying thicknesses. By setting up a reciprocating component and an image acquisition component, the reciprocating component drives the image acquisition component in reciprocating motion. The engagement of the locking slots on the first and second lifting plates with the image acquisition component ensures that the image acquisition camera remains relatively stationary with the sample during transport, thereby improving image acquisition quality. This allows the image acquisition camera to accurately capture the printed pattern on the sample, ultimately enhancing the final product manufacturing quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the image acquisition mechanism for a cardboard printing line.

[0018] Figure 2 This is a schematic diagram of the other side of the image acquisition mechanism for the cardboard printing line.

[0019] Figure 3 This is a schematic diagram of the structure of the first and second placement plates in the image acquisition mechanism of the cardboard printing line.

[0020] Figure 4 This is a schematic diagram of the height adjustment component in the image acquisition mechanism of a cardboard printing line.

[0021] Figure 5 This is a schematic diagram of the image acquisition component in the image acquisition mechanism of a cardboard printing line.

[0022] Figure 6 This is a schematic diagram of the structure of the first lifting plate in the image acquisition mechanism of the cardboard printing line.

[0023] Figure 7 This is a schematic diagram of the reciprocating component in the image acquisition mechanism of a cardboard printing line.

[0024] Figure 8 This is a schematic diagram of the interlocking groove in the image acquisition mechanism of a cardboard printing line.

[0025] In the diagram: 1. Transport mechanism; 2. Sample; 301. First placement plate; 302. Second placement plate; 303. Through groove; 4. Positioning plate; 501. First lifting plate; 502. Second lifting plate; 503. Moving groove; 504. Snap-fit ​​groove; 6. Belt; 601. Protruding post; 7. Moving plate; 8. Lead screw; 9. Slide rod; 10. Mounting plate; 11. Sliding sleeve; 12. Image acquisition camera; 13. Threaded sleeve; 14. Spring; 15. Fixed rod; 16. Spring; 17. Moving rod; 18. Reciprocating plate; 1801. Slide groove; 1802. Snap-fit ​​rod; 19. Pulley; 2001. Reset groove; 2002. First inclined groove; 2003. Lateral groove; 2004. Second inclined groove; 21. Deflection plate. Detailed Implementation

[0026] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0029] Please see Figures 1-8 In this embodiment of the utility model, a cardboard printing line image acquisition mechanism includes:

[0030] The transport mechanism 1 is provided with a first shelf 301 and a second shelf 302, and a first lifting plate 501 and a second lifting plate 502 are respectively slidably provided on the first shelf 301 and the second shelf 302.

[0031] Specifically, the aforementioned transport mechanism 1 is connected to the printing press (the printing press is located at...). Figure 1 On the left (not shown in the figure), when the printing press is running, the printed cardboard sample 2 is conveyed to the left at a constant speed by the transport mechanism 1. During the movement, the sample 2 passes through the first placement plate 301 and the second placement plate 302. During this process, the image acquisition camera 12 installed on the first lifting plate 501 and the second lifting plate 502 will take pictures of the printed pattern on the sample 2 and then upload them to the image analysis system for the image analysis system to detect the printing quality of the cardboard.

[0032] The first shelf 301 is also provided with a height adjustment component, which includes a lead screw 8 rotatably mounted on the first shelf 301. (See also...) Figure 2 , Figure 4 One end of the aforementioned lead screw 8 is coaxially fixed with the output shaft of the motor mounted on the first shelf 301, and the lead screw 8 is provided with a threaded sleeve 13 that is threadedly connected to it. The threaded sleeve 13 is connected to a positioning plate 4 that is slidably mounted on the first shelf 301, and the positioning plate 4 is connected to the first lifting plate 501.

[0033] A movable plate 7 is slidably disposed between the first lifting plate 501 and the second lifting plate 502. The movable plate 7 is connected to a reciprocating assembly disposed on the first lifting plate 501. The reciprocating assembly can drive the movable plate 7 to reciprocate along the length direction of the transport mechanism 1.

[0034] For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6The two ends of the aforementioned movable plate 7 are respectively slidably disposed in the movable slots 503 opened on the first lifting plate 501 and the second lifting plate 502. With the connection of the movable plate 7, the first lifting plate 501 and the second lifting plate 502 can be raised and lowered synchronously.

[0035] Specifically, both the first shelf 301 and the second shelf 302 are provided with through grooves 303. The positioning plate 4 is slidably disposed in the through grooves 303 and connected to the first lifting plate 501. In addition, the second lifting plate 502 is connected to the positioning plate 4 slidably disposed on the second shelf 302, and the second lifting plate 502 is also provided with a sliding rod 9. A sliding sleeve 11 connected to the positioning plate 4 is slidably disposed on the sliding rod 9.

[0036] During image acquisition and inspection, if the image captured by the image acquisition camera 12 is not clear enough or the thickness of the sample 2 changes, the motor drives the lead screw 8 to rotate. The lead screw 8 then drives the threaded sleeve 13 to raise and lower the positioning plate 4 vertically, thereby adjusting the height of the first lifting plate 501 and the second lifting plate 502 to maintain a suitable distance between the image acquisition camera 12 and the sample 2, thus enabling clear imaging of the sample 2 for subsequent image analysis system inspection of the paperboard printing quality. It should be noted that both the image acquisition camera 12 and the image analysis system are existing technologies.

[0037] Specifically, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 The reciprocating assembly includes pulleys 19 rotatably mounted on the first lifting plate 501. Two sets of pulleys 19 are symmetrically arranged along the length of the first lifting plate 501, and a belt 6 is arranged between the two sets of pulleys 19. The belt 6 is provided with protrusions 601, which are connected to the reciprocating component slidably arranged on the first lifting plate 501. One set of pulleys 19 is connected to a drive motor arranged on the first lifting plate 501. The drive motor is communicatively connected to the transport mechanism 1, that is, when the transport mechanism 1 is activated, the drive motor can synchronously drive the pulleys 19 to rotate. In particular, the rotational speed of the belt 6 driven by the pulleys 19 is the same as the rotational speed and transport direction of the transport mechanism 1.

[0038] The reciprocating component includes a reciprocating plate 18 slidably disposed on the first lifting plate 501. The reciprocating plate 18 is connected to the moving plate 7, and a groove 1801 is provided on the side of the reciprocating plate 18 facing the first lifting plate 501. The protruding post 601 is slidably disposed in the groove 1801.

[0039] In detail, the reciprocating plate 18 is symmetrically provided with two sets of locking rods 1802 along its length direction. The locking rods 1802 are slidably disposed in the locking grooves 504 opened on the first lifting plate 501. With the cooperation of the locking grooves 504 and the locking rods 1802, the reciprocating plate 18 can only slide along the length direction of the first lifting plate 501.

[0040] It also includes an image acquisition component that is flexibly set on the moving plate 7. When the reciprocating component moves, the image acquisition component cooperates with the fitting slots opened on the first lifting plate 501 and the second lifting plate 502, so that the image acquisition component and the sample 2 on the transport mechanism 1 remain relatively stationary, thereby acquiring images of the sample 2 more clearly.

[0041] The image acquisition component includes a movable rod 17 slidably disposed in the fitting groove, and a mounting plate 10 is connected between two sets of movable rods 17. An image acquisition camera 12 is fixedly mounted on the side of the mounting plate 10 facing the transport mechanism 1, and the mounting plate 10 is slidably connected to a fixed rod 15 disposed on the movable plate 7. A spring 16 is sleeved on the fixed rod 15, one end of the spring 16 abuts against the mounting plate 10, and the other end abuts against the movable plate 7.

[0042] The fitting groove includes a reset groove 2001, a first inclined groove 2002, a transverse groove 2003, and a second inclined groove 2004. The reset groove 2001, the first inclined groove 2002, the transverse groove 2003, and the second inclined groove 2004 form a parallelogram-like structure, and a guide is provided at the connection between the reset groove 2001 and the second inclined groove 2004.

[0043] The guide includes a deflector plate 21 rotatably mounted at the connection between the reset groove 2001 and the second inclined groove 2004. The deflector plate 21 is connected to the first lifting plate 501 via a spring piece 14. Specifically, the deflector plate 21 is parallel to the second inclined groove 2004, and the deflector plate 21 can only deflect clockwise toward the second inclined groove 2004 (see reference). Figure 7 , Figure 8 describe);

[0044] Please refer to the following for further explanation: Figures 1-5 The spring 16 is always in a compressed state, pushing the mounting plate 10 away from the moving plate 7. In the initial state, the reciprocating plate 18 is close to the drive motor, the moving rod 17 is located at the beginning of the stroke of the reset groove 2001, and the image acquisition camera 12 is located directly above one of the samples 2.

[0045] During printing, the transport mechanism 1 works synchronously with the drive motor. At this time, the protruding post 601 cooperates with the slide 1801 to drive the reciprocating plate 18 to move the moving plate 7 and the image acquisition camera 12 in the same direction as the transport mechanism 1. During the movement of the moving plate 7, at the end of the stroke of the moving groove 503, the image acquisition camera 12 and the sample 2 remain relatively stationary, which can clearly capture the sample 2, thereby improving the detection quality of subsequent products. When the reciprocating plate 18 moves in the opposite direction and returns to the initial position, the image acquisition camera 12 is just above the next set of samples 2. This process is repeated to perform one detection on the sample 2 on the transport mechanism 1, thereby completing the printing monitoring of the sample 2.

[0046] For details, please refer to Figure 1 , Figure 8 The description describes how, during the operation of the drive motor, which drives the reciprocating plate 18 to move in the same direction as the transport mechanism 1, the moving rod 17 first slides along the reset groove 2001, and then slides along the second inclined groove 2004 under the guidance of the deflection plate 21. During this process, the second inclined groove 2004 forces the moving rod 17 to drive the mounting plate 10 to rise along the axial direction of the fixed rod 15, so that the spring 16 is further compressed. After the moving rod 17 engages with the transverse groove 2003, the reciprocating plate 18, which continues to move, drives the mounting plate 10 and the image acquisition camera 12 to slide along the transverse groove 2003. When the moving rod 17 engages with the first inclined groove 2002, the spring 16 releases its elastic potential energy, causing the moving rod 17 to engage with the first inclined groove 2002. Immediately afterwards, the reciprocating plate 18 moves in the opposite direction. With the cooperation of the second inclined groove 2004, the spring 16 slowly releases its elastic potential energy, so that the mounting plate 10 and the image acquisition camera 12 return to their initial height in a relatively smooth manner, thereby reducing the impact of vibration on the image acquisition camera 12.

[0047] After the mounting plate 10 returns to its initial height, the moving rod 17 engages with the reset groove 2001. Subsequently, under the action of the belt 6, the moving rod 17 returns to its initial position along the reset groove 2001. During this process, the moving rod 17 contacts the deflection plate 21 and pushes the deflection plate 21 to rotate clockwise. After the moving rod 17 separates from the deflection plate 21, the deflection plate 21 returns to its initial position under the action of the spring piece 14, so that the reciprocating plate 18 can drive the image acquisition camera 12 to move next time.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cardboard printing line image acquisition mechanism, characterized in that, include: The transportation mechanism (1) is provided with a first shelf (301) and a second shelf (302), and a first lifting plate (501) and a second lifting plate (502) are respectively slidably provided on the first shelf (301) and the second shelf (302); A movable plate (7) is slidably disposed between the first lifting plate (501) and the second lifting plate (502). The movable plate (7) is connected to a reciprocating assembly disposed on the first lifting plate (501). The reciprocating assembly can drive the movable plate (7) to reciprocate along the length direction of the transport mechanism (1). It also includes an image acquisition component that is flexibly set on the moving plate (7). When the reciprocating component is in motion, the image acquisition component cooperates with the fitting slots opened on the first lifting plate (501) and the second lifting plate (502) so that the image acquisition component and the sample (2) on the transport mechanism (1) remain relatively stationary, thereby acquiring images of the sample (2).

2. The image acquisition mechanism for a cardboard printing line according to claim 1, characterized in that, The reciprocating assembly includes pulleys (19) rotatably mounted on the first lifting plate (501). Two sets of pulleys (19) are symmetrically arranged along the length of the first lifting plate (501). A belt (6) is provided between the two sets of pulleys (19). A protrusion (601) is provided on the belt (6). The protrusion (601) is connected to a reciprocating component slidably mounted on the first lifting plate (501).

3. The cardboard printing line image acquisition mechanism according to claim 2, characterized in that, The reciprocating component includes a reciprocating plate (18) slidably disposed on the first lifting plate (501), the reciprocating plate (18) being connected to the moving plate (7), and the reciprocating plate (18) having a groove (1801) on the side facing the first lifting plate (501), and the protruding post (601) being slidably disposed in the groove (1801).

4. The cardboard printing line image acquisition mechanism according to claim 2, characterized in that, The image acquisition component includes a movable rod (17) slidably disposed in the fitting groove. A mounting plate (10) is connected between two sets of movable rods (17). An image acquisition camera (12) is fixedly mounted on the side of the mounting plate (10) facing the transport mechanism (1). The mounting plate (10) is slidably connected to a fixed rod (15) disposed on the movable plate (7). A spring (16) is sleeved on the fixed rod (15). One end of the spring (16) abuts against the mounting plate (10), and the other end abuts against the movable plate (7).

5. The cardboard printing line image acquisition mechanism according to claim 2, characterized in that, The fitting groove includes a reset groove (2001), a first inclined groove (2002), a transverse groove (2003), and a second inclined groove (2004). The reset groove (2001), the first inclined groove (2002), the transverse groove (2003), and the second inclined groove (2004) form a parallelogram-like structure, and a guide is provided at the connection between the reset groove (2001) and the second inclined groove (2004).

6. The cardboard printing line image acquisition mechanism according to claim 5, characterized in that, The guide includes a deflection plate (21) rotatably mounted at the connection between the reset groove (2001) and the second inclined groove (2004), and the deflection plate (21) is connected to the first lifting plate (501) via a spring piece (14).

7. The cardboard printing line image acquisition mechanism according to claim 2, characterized in that, The first shelf (301) is also provided with a height adjustment component, which includes a lead screw (8) rotatably mounted on the first shelf (301), a threaded sleeve (13) threadedly connected to the lead screw (8), the threaded sleeve (13) being connected to a positioning plate (4) slidably mounted on the first shelf (301), and the positioning plate (4) being connected to the first lifting plate (501).

Images