A cigarette case wrapping paper flatness detection device

Abstract

The utility model discloses a cigarette case packaging paper flatness detection device belongs to tobacco packaging detection technical field, including frame, width adjusting mechanism and fixed part, be equipped with paper conveying mechanism on the frame, and the both sides of frame are equipped with the baffle for guiding paper, width adjusting mechanism is connected with two baffle, is used for adjusting the interval between two baffle according to the width of paper, the fixed part includes the mounting plate on two baffle respectively and with the synchronous movement of baffle, the utility model discloses the interval between baffle is adjusted through width adjusting mechanism and adapts to the paper sheet guiding of different width at the same time, drives the length of fixed part to carry out synchronous adjustment, makes a plurality of laser displacement sensor can carry out interval adjustment along paper conveying component width direction synchronously, makes laser displacement sensor can cover the surface of current width paper sheet, ensures the coverage and precision stability when detecting paper sheet of different width.

Description

Technical Field

[0001] This utility model relates to the field of tobacco packaging testing technology, and in particular to a device for testing the flatness of cigarette box packaging paper. Background Technology

[0002] In cigarette box packaging production, the flatness of the cigarette box paper directly affects the printing registration accuracy and die-cutting quality. High-precision quality control is required through laser inspection equipment. In actual production, cigarette box paper often involves various width specifications, but the current mainstream laser flatness inspection equipment has obvious shortcomings in adapting to different widths of paper, making it difficult to balance production efficiency and inspection quality.

[0003] Existing laser inspection equipment typically requires adjustments to handle paper of different widths. First, the lateral constraint structure of the paper transport path needs to be adjusted to match the transport requirements of the new paper width. Then, the coverage area of ​​the laser inspection area needs to be adjusted to ensure that the inspection area can completely cover the paper surface. The adjustment process requires the use of a measuring tape to measure the dimensions and multiple trial feeds of paper to calibrate the position, which is quite troublesome. Utility Model Content

[0004] This utility model provides a cigarette box packaging paper flatness detection device to solve the problem in the prior art that it is impossible to adjust synchronously for papers of different widths, resulting in the laser detection equipment being unable to cover the paper when detecting the flatness of the paper.

[0005] The present invention adopts the following technical solution: it includes a frame, a width adjustment mechanism, and a fixing component. The frame is provided with a paper conveying mechanism, and the two sides of the frame are provided with guide plates for guiding the paper. The width adjustment mechanism is connected to the two guide plates and is used to adjust the distance between the two guide plates according to the width of the paper. The fixing component includes mounting plates located on the two guide plates and moving synchronously with the guide plates. The bottom of the mounting plate is provided with a plurality of laser displacement sensors equidistantly arranged along its length extension direction. The two mounting plates are relatively staggered and slidably connected to each other. The fixing component is adjusted synchronously with the width adjustment mechanism to maintain detection coverage of the paper surface when the guide plates are adapted to paper of different widths.

[0006] Furthermore, the width adjustment mechanism includes a connecting frame connected to two guide plates and a gear rotatably connected to the bottom of the frame via a rotating component. The bottom of each of the two connecting frames is provided with a rack that meshes with the gear. The connecting frame is provided with a guide rod that extends into the inside of the frame and is slidably connected to the frame.

[0007] Furthermore, one of the connecting frames is rotatably connected to an adjusting rod extending to one side of the frame and threadedly connected to the frame, and a push plate rotatably connected to the connecting frame is fixedly connected to the adjusting rod.

[0008] Furthermore, the guide plate is provided with a height adjustment component, the other end of which is connected to a fixing component.

[0009] Furthermore, the number of the fixing components is at least two sets, and the laser displacement sensors on at least two sets of the fixing components are staggered with each other.

[0010] Furthermore, the misalignment distance between the laser displacement sensors on at least two sets of the fixtures is 1 / 2 of the distance between adjacent laser displacement sensors on a single set of mounting plates.

[0011] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects: In this invention, the width adjustment mechanism adjusts the spacing between the guide plates to adapt to paper of different widths while simultaneously adjusting the length of the fixing component. This allows multiple laser displacement sensors to adjust their spacing synchronously along the width direction of the paper conveying assembly, ensuring that the laser displacement sensors can cover the surface of the paper of the current width. This avoids detection blind spots caused by the sensor spacing not changing synchronously after the guide plate spacing is adjusted, thus ensuring coverage and accuracy stability when detecting paper of different widths. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a schematic diagram of the second-view structure of the present invention; Figure 3 This is a front view of the present invention; Figure 4 This is a schematic diagram of the connecting frame structure provided in this utility model; Figure 5 This is a schematic diagram of the adjusting rod structure provided in this utility model; Figure 6 This is a schematic diagram of the fastener structure provided in this utility model.

[0013] Figure Labels

[0014] Frame 1, Paper conveying mechanism 2, Guide plate 3, Fixing component 4, Mounting plate 41, Laser displacement sensor 42, Connecting frame 5, Main crossbar 51, Secondary connecting rod 52, Rotating component 6, Gear 61, Rack 62, Guide rod 63, Adjusting rod 7, Push plate 71, Height adjusting component 8. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] The technical solutions provided by the various embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0017] This utility model provides a device for detecting the flatness of cigarette box packaging paper, including a frame 1. A paper conveying mechanism 2 is provided on the frame 1, and guide plates 3 are provided on both sides of the frame 1 for guiding and limiting the paper conveyed on the paper conveying mechanism 2. The paper conveying mechanism 2 can use a conveyor belt or other device to transport paper. Since the width of different specifications of paper is different, a width adjustment mechanism is also included. The width adjustment mechanism is connected to the two guide plates 3 and is used to adjust the distance between the two guide plates 3 according to the width of the paper. The guide plates 3 limit and guide the paper on the conveyor belt, so that the paper is conveyed in a straight line. A fixing member 4 is also provided on the guide plate 3. The fixing member 4 includes mounting plates 41 located on the two guide plates 3 and moving synchronously with the guide plates 3. The bottom of the mounting plate 41 is provided with a plurality of laser displacement sensors 42 equidistantly arranged along its length extension direction. The two mounting plates 41 are relatively staggered and slidably connected to each other. The fixing member 4 is adjusted synchronously with the width adjustment mechanism to adjust the distance between the guide plates 3 and the paper conveyed on the conveyor belt. 3. When adapting to different paper widths, maintain detection coverage of the paper surface. When the width of the conveyed paper changes, the width adjustment mechanism adjusts the distance between the two guide plates 3. At the same time, the guide plates 3 will drive the fixing part 4 to adjust its length. For example, when the distance between the guide plates 3 increases, the two guide plates 3 move away from each other, causing the two mounting plates 41 to move away from each other. At this time, the laser displacement sensor 42 on the mounting plate 41 unfolds along the width direction of the paper conveying mechanism 2 to detect the flatness of the paper. The laser displacement sensor 42 emits a laser beam to the paper surface through the emitting end according to the optical triangulation principle. After the laser is reflected by the paper surface, it is captured by the receiving end of the sensor. By calculating the position offset of the reflected light at the receiving end, the distance between the sensor and the paper surface can be accurately calculated. When the detected distance value is not within the set threshold, the controller can issue an alarm or mark the paper. The above is the prior art and is not the main inventive point of this solution, so it will not be described in detail. Specifically, the width adjustment mechanism includes a connecting frame 5 connected to two guide plates 3 and a gear 61 rotatably connected to the bottom of the frame 1 via a rotating component 6. The bottom of each connecting frame 5 is provided with a rack 62 that meshes with the gear 61. The connecting frame 5 is provided with a guide rod 63 that extends into the frame 1 and is slidably connected to the frame 1. The connecting frame 5 may include a main crossbar 51 and secondary connecting rods 52 connected to both ends of the main crossbar 51. The guide plates 3 and the racks 62 are both connected to the two secondary connecting rods 52. When adjusting the width, pushing one of the connecting frames 5 to move causes its corresponding rack 62 to move. The gear 61 drives the opposite connecting frame 5 to move, thereby achieving the width adjustment. When the connecting frame 5 moves, it drives the guide rod 63 to slide synchronously within the frame. On the one hand, it can support and connect the connecting frame 5, and on the other hand, it can guide it.

[0018] Preferably, in order to fix the guide plate 3 after width adjustment, an adjusting rod 7 extending to one side of the frame 1 and threadedly connected to the frame 1 is rotatably connected to one of the connecting frames 5, and a push plate 71 rotatably connected to the adjusting rod 7 is fixedly connected to the adjusting rod 7. By rotating the adjusting rod 7, the push plate 71 is driven to rotate synchronously on the main crossbar 51 of the connecting frame 5, thereby driving the connecting frame 5 to move. For example, when the adjusting rod 7 is rotated in reverse, the connecting frame 5 is driven to move closer to the frame 1, and when the adjusting rod 7 is rotated in the forward direction, the connecting frame 5 is driven to move away from the frame 1. Since the adjusting rod 7 is threadedly connected to the frame 1, the connecting frame 5 can be fixed when rotation stops.

[0019] Preferably, the guide plate 3 is provided with a height adjustment component 8, the other end of which is connected to the fixing component 4. The height adjustment component 8 can be an electric telescopic rod or other device, which can flexibly adapt to cigarette box paper of different thicknesses (from 200g / m² thin cardboard to 400g / m² thick cardboard). By adjusting the height adjustment component 8, the height of the fixing component 4 and the laser displacement sensor can be changed to ensure that the sensor and the paper surface always maintain an optimal detection distance of 30-50mm. This avoids the problem of thick paper hitting the sensor and thin paper having a weak signal due to excessive distance, while also ensuring that the laser is vertically irradiated and the detection data is accurate.

[0020] Preferably, there are at least two sets of fixing members 4, and the laser displacement sensors 42 on the at least two sets of fixing members 4 are staggered. The stagger distance between the laser displacement sensors on the at least two sets of fixing members 4 is 1 / 2 of the distance between adjacent laser displacement sensors on a single set of mounting plates 41. When it is necessary to detect wider paper, the two sets of fixing members 4 will be pulled apart synchronously with the guide plate 3. For example, the distance between the laser displacement sensors 42 on a single set of mounting plates 41 increases from 4mm to 6mm. At this time, the distance between the laser displacement sensors 42 on a single set of mounting plates 41 changes (A1 is 0mm, A2 is 6mm, and A3 is 12mm). If there is only this set, there will be a 5mm detection blind zone between 0-6mm. However, the laser displacement sensor 42 on the second set of fixing parts 4 is misaligned by 1 / 2 spacing (3mm), so it will fall in the middle of the gap (B1 at 3mm, B2 at 9mm, B3 at 15mm), which will fill the blind spot. In the end, the overall detection points can still be continuously covered, reducing the number of wrinkles or warps on the surface of the paper that are missed.

[0021] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A device for detecting the flatness of cigarette box packaging paper, characterized in that, include; A frame (1) is provided with a paper conveying mechanism (2), and guide plates (3) for guiding the paper are provided on both sides of the frame (1). Width adjustment mechanism, which is connected to two guide plates (3) and is used to adjust the spacing between the two guide plates (3) according to the width of the paper; The fixing component (4) includes mounting plates (41) located on two guide plates (3) and moving synchronously with the guide plates (3). The bottom of the mounting plate (41) is provided with a plurality of laser displacement sensors (42) equidistantly arranged along its length extension direction. The two mounting plates (41) are staggered relative to each other and slidably connected. The fixing component (4) is adjusted synchronously with the width adjustment mechanism to maintain detection coverage of the paper surface when the guide plate (3) is adapted to different widths of paper.

2. The device for detecting the flatness of cigarette box packaging paper according to claim 1, characterized in that, The width adjustment mechanism includes a connecting frame (5) connected to two guide plates (3) and a gear (61) rotatably connected to the bottom of the frame (1) via a rotating component (6). The bottom of each of the two connecting frames (5) is provided with a rack (62) meshing with the gear (61). The connecting frame (5) is provided with a guide rod (63) extending into the inside of the frame (1) and slidably connected to the frame (1).

3. The device for detecting the flatness of cigarette box packaging paper according to claim 2, characterized in that, One of the connecting frames (5) is rotatably connected to an adjusting rod (7) that extends to one side of the frame (1) and is threaded to the frame (1), and a push plate (71) that is rotatably connected to the adjusting rod (7) is fixedly connected to the adjusting rod (7).

4. The device for detecting the flatness of cigarette box packaging paper according to claim 1, characterized in that, The guide plate (3) is provided with a height adjustment component (8), and the other end of the height adjustment component (8) is connected to the fixing component (4).

5. The device for detecting the flatness of cigarette box packaging paper according to claim 1, characterized in that, The number of the fixing members (4) is at least two sets, and the laser displacement sensors (42) on at least two sets of the fixing members (4) are staggered.

6. The device for detecting the flatness of cigarette box packaging paper according to claim 5, characterized in that, The misalignment distance of the laser displacement sensors on at least two sets of the fixing members (4) is 1 / 2 of the spacing between adjacent laser displacement sensors on a single set of mounting plates (41).

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