Corrugated board thickness detection device and corrugated board machine thereof

Abstract

The invention discloses a corrugated paperboard thickness detection device and a corrugated paperboard machine thereof, and relates to the technical field of corrugated paperboard thickness detection.The corrugated paperboard thickness detection device comprises a base, a supporting plate is fixedly installed at the upper end of the base, meanwhile, a cleaning assembly is arranged on the supporting plate, and impurities adhering to the surface of a corrugated paperboard are removed through the cleaning assembly; according to the corrugated board thickness detection device and the corrugated board machine thereof, when a pressing block is attached to a corrugated board, the pressing block is tightly pressed on the outer surface of the corrugated board through the transmission force of a ratchet gear, and when the pressing block bears the maximum pressure, a first elastic piece is matched to be stressed and shrunk, so that a clamping block is separated from the ratchet gear, and the corrugated board thickness is detected. And the pressing block is clamped with the other notch of the ratchet wheel, so that the stability of the pressing block is ensured, the edge part of the corrugated board is tightly kept in a clinging state with the optimal force, and the deviation of a detection result caused by edge upwarp is avoided.

Description

Technical Field

[0001] The invention relates to a corrugated paper thickness detection technology, and in particular to a corrugated paper thickness detection device and a corrugated paper machine. Background Art

[0002] Corrugated paper is a board-shaped material made by gluing noodle paper and corrugated paper formed by corrugating rollers. It is generally divided into two categories: single corrugated paperboard and double corrugated paperboard. According to the size of the corrugation, it is divided into five types: A, B, C, E, and F. Corrugated paper can be used as packaging for food or digital products. It is relatively environmentally friendly and widely used. When manufacturing corrugated paper, a detection device is required to detect the thickness of the corrugated paper.

[0003] A Chinese invention patent with publication number CN113587877A discloses a corrugated paper thickness detection device and a corrugated paper machine. The corrugated paper thickness detection device and the corrugated paper machine adopt the cooperation of a support groove, a cylinder, a movable plate, a fixed box, a latex block, a soft ball, a limit plate, a pressure plate and a slide groove. The pressure plate is driven to move downward through the cooperation of the cylinder and the movable plate to fix the two sides of the corrugated paper. At the same time, the toughness of the pressure plate is increased through the cooperation of the latex block and the soft ball to prevent the corrugated paper from being damaged by excessive pressure of the pressure plate. The problem that the existing corrugated paper thickness detection device requires the staff to manually support the two sides of the corrugated paper when in use, which wastes a lot of time of the staff and leads to poor working efficiency of the device is avoided, thereby saving the time of the staff and improving the working efficiency of the device.

[0004] When the existing equipment is in use, due to the irregularities or fluctuations that may exist on the surface of the corrugated cardboard, especially the larger wavy structure, some non-contact measuring equipment may be difficult to measure accurately, resulting in measurement errors. At the same time, in the production process of the corrugated cardboard, if the pressing pressure is insufficient and the cardboard is not fully compacted, the corner area may warp up, and the thickness of the warped part may be different from that of other parts of the cardboard, which may cause local thickness errors and affect the overall detection results. Therefore, a corrugated cardboard thickness detection device and a corrugated cardboard machine are developed. Summary of the invention

[0005] The object of the present invention is to provide a corrugated board thickness detection device and a corrugated board machine thereof, so as to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a corrugated paperboard thickness detection device, comprising a base, a support plate is fixedly mounted on the upper end of the base, and a cleaning component is arranged on the support plate, and impurities adhered to the surface of the corrugated paperboard are removed by the cleaning component;

[0007] A pressing assembly is assembled on one side of the base, and the edge part of the corrugated cardboard is cleaned through the pressing assembly;

[0008] Among them, the pressing assembly includes a bottom plate fixedly connected to the base. A driving member is fixedly installed at the end of the bottom plate. A screw rod is fixedly installed at the output end of the driving member. At the same time, a slider is slidably installed on the upper end of the bottom plate, and the end of the slider is slidably connected to the outer surface of the screw rod;

[0009] A chute is formed on one side of the slider, and a rotating block is slidably installed on the inner wall of the chute. The end of the rotating block is rotatably connected to one side of the bottom plate. At the same time, the end of the rotating block penetrates and extends to the other end of the bottom plate. An adjusting block is fixedly installed at the end of the rotating block. A baffle is fixedly installed at the end of the adjusting block, and a pressing block is clamped at the end of the baffle. The corrugated cardboard is pressed through the pressing block.

[0010] As a further optimized solution of the present invention, a driving rod is fixedly installed at the end of the rotating block, and a telescopic member is clamped at the end of the driving rod away from the rotating block.

[0011] As a further optimized solution of the present invention, a positioning plate is fixedly installed at the end of the bottom plate away from the rotating block, and the outer surface of the positioning plate is inclined;

[0012] A power rod is rotatably installed at the end of the adjusting block away from the baffle. The end of the power rod is connected to the end of the telescopic member. At the same time, the outer surface of the power rod is slidably connected to the outer surface of the positioning plate.

[0013] As a further optimized solution of the present invention, a ring is fixedly installed at the connection between the power rod and the adjusting block, and a circular plate is fixedly installed at the end of the ring. A clamping block is rotatably installed between the circular plate and the ring.

[0014] As a further optimized solution of the present invention, a ratchet gear is rotatably installed at the upper end of the circular plate, a fixed rod is rotatably installed at the upper end of the ratchet gear, and a connecting block is slidably installed on the outer surface of the fixed rod;

[0015] A first elastic member is sleeved on the outer surface of the fixed rod. The upper end of the first elastic member is connected to the lower end of the connecting block, and the lower end of the first elastic member is connected to the upper end of the ratchet gear.

[0016] As a further optimized solution of the present invention, a moving rod is rotatably installed on the outer surface of the connecting block. A push rod is rotatably installed at the end of the moving rod away from the connecting block. At the same time, the end of the push rod is rotatably connected to the end of the clamping block, and the outer surface of the clamping block is meshed with the outer surface of the ratchet gear.

[0017] As a further optimized solution of the present invention, a transmission block is fixedly installed at the lower end of the ratchet gear. The lower end of the transmission block penetrates and extends to the lower end of the circular plate. At the same time, a transmission member is clamped on the outer surface of the transmission block, and the other end of the transmission member is attached to the outer surface of the pressing block.

[0018] As a further optimized solution of the present invention, the cleaning assembly includes a fixed block slidably connected to the support plate. A limiting plate is fixedly installed at the lower end of the fixed block. A sliding plate is slidably installed on one side of the limiting plate. A positioning column is slidably installed at the upper end of the sliding plate. A cleaning block is fixedly installed at the lower end of the sliding plate. The impurities on the surface of the corrugated cardboard are removed by the cleaning block.

[0019] As a further optimized solution of the present invention, movable rods are rotatably installed at the opposite ends of the fixed block and the sliding plate. The ends of the two movable rods are rotatably installed with a pressing block. The end of the pressing block is rotatably installed with a telescopic rod. A second elastic member is sleeved on the outer surface of the telescopic rod. The upper end of the second elastic member is connected to the fixed block, and the lower end of the second elastic member is connected to the end of the telescopic rod.

[0020] A corrugated cardboard machine includes the corrugated cardboard thickness detection device described in any one of the above, and is installed at the output end of the corrugated cardboard detection device.

[0021] Compared with the prior art, the corrugated cardboard thickness detection device and the corrugated cardboard machine provided by the present invention have the following beneficial effects: when the pressing block is attached to the corrugated cardboard, the pressing block is tightly pressed on the outer surface of the corrugated cardboard by the force transmitted by the ratchet gear. At the same time, when the maximum pressure is borne, the first elastic member contracts under force, so that the clamping block is separated from the ratchet gear and is clamped with another notch of the ratchet gear, ensuring the stability of the pressing block, and keeping the edge part of the corrugated cardboard tightly in close contact state with the best force, avoiding deviation of the detection result due to edge warping.

[0022] When the cleaning block is attached to the outer surface of the corrugated cardboard, in cooperation with the second elastic member, the cleaning block is tightly pressed on the outer surface of the corrugated cardboard. When the corrugated cardboard moves slowly, the residues on the outer surface of the corrugated cardboard are removed, and the incompletely adhered parts are tightly pressed together, thereby reducing the error generated during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0024] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0025] Figure 2 First schematic diagram of the structure of the pressing component provided by the embodiment of the present invention;

[0026] Figure 3 Second schematic diagram of the structure of the pressing component provided by the embodiment of the present invention;

[0027] Figure 4 Third schematic diagram of the structure of the pressing component provided by the embodiment of the present invention;

[0028] Figure 5 Schematic diagram of the ring structure provided by the embodiment of the present invention;

[0029] Figure 6 Cross-sectional view of the internal structure of the ring provided by the embodiment of the present invention;

[0030] Figure 7 Schematic diagram of the internal structure of the ring provided by the embodiment of the present invention;

[0031] Figure 8 Schematic diagram of the structure of the cleaning component provided by the embodiment of the present invention.

[0032] Explanation of reference numerals:

[0033] 1, base; 2, pressing component; 3, cleaning component; 11, support plate; 21, bottom plate; 22, driving member; 221, screw; 23, slider; 231, chute; 24, rotating block; 241, driving rod; 242, telescopic member; 25, positioning plate; 26, power rod; 27, adjusting block; 28, baffle; 281, pressing block; 282, transmission member; 29, ring; 291, circular plate; 292, ratchet gear; 293, fixed rod; 294, connecting block; 295, moving rod; 296, push rod; 297, clamping block; 298, first elastic member; 299, transmission block; 31, fixed block; 32, limiting plate; 33, sliding plate; 34, positioning column; 35, movable rod; 36, extrusion block; 37, telescopic rod; 38, second elastic member; 39, cleaning block. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Embodiment 1:

[0037] Please refer to Figures 1-8 , a corrugated cardboard thickness detection device, including a base 1. A support plate 11 is fixedly installed at the upper end of the base 1. At the same time, a cleaning component 3 is arranged on the support plate 11 to remove impurities adhered to the surface of the corrugated cardboard through the cleaning component 3.

[0038] In this solution, a device with a telescopic function such as an electric telescopic rod is fixedly installed on the inner wall of the support plate 11 and is connected to an external control device. At the same time, the output end of the electric telescopic rod is connected to the end of the cleaning component 3, and the cleaning component 3 is driven to move through the electric telescopic rod until the cleaning component 3 reaches the optimal position.

[0039] Furthermore, a pressing component 2 is assembled on one side of the base 1 to clean the edge part of the corrugated cardboard; among them, the pressing component 2 includes a bottom plate 21 fixedly connected to the base 1. A driving part 22 is fixedly installed at the end of the bottom plate 21. A screw rod 221 is fixedly installed at the output end of the driving part 22. At the same time, a slider 23 is slidably installed on the upper end of the bottom plate 21, and the end of the slider 23 is slidably connected to the outer surface of the screw rod 221.

[0040] In this embodiment, the driving part 22 is a device with power output such as a motor and is connected to an external control device. When the driving part 22 is started, the screw rod 221 arranged at its output end is synchronously driven to rotate. Among them, a thread groove is opened at the end of the slider 23, and the inner wall of the thread groove is threadedly connected to the outer surface of the screw rod 221, so that when the screw rod 221 rotates, the slider 23 is driven to move on the bottom plate 21.

[0041] Further, a chute 231 is provided on one side of the slider 23. A rotating block 24 is slidably installed on the inner wall of the chute 231. The end of the rotating block 24 is rotatably connected to one side of the bottom plate 21. At the same time, the end of the rotating block 24 penetrates and extends to the other end of the bottom plate 21. An adjusting block 27 is fixedly installed at the end of the rotating block 24. A baffle 28 is fixedly installed at the end of the adjusting block 27. And a pressing block 281 is clamped at the end of the baffle 28 to press the corrugated cardboard through the pressing block 281.

[0042] Specifically, when the slider 23 moves, it cooperates with the chute 231 provided on its side to drive the rotating block 24 to move. Since the rotating block 24 is rotatably installed on the side of the bottom plate 21, when the slider 23 drives the rotating block 24 to move, the rotating block 24 rotates around its connection with the bottom plate 21.

[0043] At the same time, when the rotating block 24 rotates, it synchronously drives the adjusting block 27 fixedly installed at its end to rotate. Since the baffle 28 is fixedly installed at the end of the adjusting block 27, the baffle 28 is driven to rotate, changing from a blocking position to a pressing position. Before the corrugated cardboard is detected, it moves to the pressing assembly 2 in the previous step, and the baffle 28 limits the corrugated cardboard.

[0044] The pressing block 281 is composed of elastic components such as rubber, and the pressing block 281 is connected to the baffle 28 through fixing components such as clamps, so as to facilitate the replacement of pressing blocks 281 of different sizes to make them suitable for different corrugated cardboard.

[0045] Further, a driving rod 241 is fixedly installed at the end of the rotating block 24. A telescopic member 242 is clamped at the end of the driving rod 241 away from the rotating block 24. A positioning plate 25 is fixedly installed at the end of the bottom plate 21 away from the rotating block 24. The outer surface of the positioning plate 25 is inclined; a power rod 26 is rotatably installed at the end of the adjusting block 27 away from the baffle 28. The end of the power rod 26 is connected to the end of the telescopic member 242, and at the same time, the outer surface of the power rod 26 is slidably connected to the outer surface of the positioning plate 25.

[0046] Specifically, when the rotating block 24 rotates, it synchronously drives the driving rod 241 fixedly installed at its end to move. Since the telescopic member 242 is clamped at the end of the driving rod 241, and the telescopic member 242 is fixed by components such as clamps. At the same time, when the driving rod 241 drives the telescopic member 242 to move, it synchronously drives the power rod 26 clamped at the other end of the telescopic member 242 to move.

[0047] Since the outer surface of the positioning plate 25 is inclined, when the power rod 26 moves along the outer surface of the positioning plate 25, it drives the power rod 26 to rotate around its connection with the adjusting block 27.

[0048] The telescopic member 242 is an existing telescopic rod with a spring body built therein for restricting the power rod 26.

[0049] Furthermore, a circular ring 29 is fixedly installed at the connection between the power rod 26 and the adjustment block 27, and a circular plate 291 is fixedly installed at the end of the circular ring 29. A clamping block 297 is rotatably installed between the circular plate 291 and the circular ring 29. A ratchet gear 292 is rotatably installed at the upper end of the circular plate 291, a fixing rod 293 is rotatably installed at the upper end of the ratchet gear 292, and a connecting block 294 is slidably installed on the outer surface of the fixing rod 293; a first elastic member 298 is sleeved on the outer surface of the fixing rod 293. The upper end of the first elastic member 298 is connected to the lower end of the connecting block 294, and the lower end of the first elastic member 298 is connected to the upper end of the ratchet gear 292.

[0050] Specifically, when the power rod 26 rotates, it drives the circular ring 29 fixedly installed at its end to rotate. Since the lower end of the circular ring 29 is rotatably connected to the circular plate 291, the circular plate 291 does not rotate synchronously with the circular ring 29.

[0051] The first elastic member 298 is an elastic component such as a spring. The connecting block 294 is restricted by the first elastic member 298, so that when the connecting block 294 is forced to move downward, it is buffered by the first elastic member 298.

[0052] The fixing rod 293 is rotatably installed on the ratchet gear 292. The connecting block 294 is restricted by the fixing rod 293, so that the connecting block 294 moves up and down along the outer surface of the fixing rod 293, avoiding the situation of offset during the movement of the connecting block 294.

[0053] Furthermore, a moving rod 295 is rotatably installed on the outer surface of the connecting block 294. One end of the moving rod 295 away from the connecting block 294 is rotatably installed with a push rod 296. At the same time, the end of the push rod 296 is rotatably connected to the end of the clamping block 297, and the outer surface of the clamping block 297 meshes with the outer surface of the ratchet gear 292.

[0054] Specifically, the clamping block 297 is restricted by the push rod 296. The push rod 296 is rotatably connected to the connecting block 294 through the moving rod 295. When the ratchet gear 292 rotates, it pushes the clamping block 297 to rotate around its connection with the circular plate 291, thereby driving the connecting block 294 to move in cooperation with the push rod 296 and the moving rod 295, thus squeezing the first elastic member 298. The acting force of the first elastic member 298 drives the clamping block 297 to be clamped on the ratchet gear 292 again.

[0055] Furthermore, a transmission block 299 is fixedly installed at the lower end of the ratchet gear 292. The lower end of the transmission block 299 penetrates and extends to the lower end of the circular plate 291. At the same time, a transmission member 282 is clamped on the outer surface of the transmission block 299, and the other end of the transmission member 282 is attached to the outer surface of the pressing block 281.

[0056] Specifically, when the ring 29 rotates, it synchronously drives the clamping block 297 to rotate. Through the action of the first elastic member 298, the ratchet gear 292 is driven to rotate. Since a transmission block 299 is fixedly installed at the end of the ratchet gear 292, and the transmission block 299 drives the pressing block 281 to rotate through the transmission member 282.

[0057] When the pressing block 281 is attached to the corrugated cardboard, the force transmitted by the ratchet gear 292 presses the pressing block 281 tightly against the outer surface of the corrugated cardboard. At the same time, when the maximum pressure is borne, in cooperation with the first elastic member 298 contracting under force, the clamping block 297 is separated from the ratchet gear 292 and is clamped with another notch of the ratchet gear 292, ensuring the stability of the pressing block 281 and keeping the edge part of the corrugated cardboard tightly in a close state.

[0058] Furthermore, the cleaning assembly 3 includes a fixed block 31 slidably connected to the support plate 11. A limiting plate 32 is fixedly installed at the lower end of the fixed block 31. A sliding plate 33 is slidably installed on one side of the limiting plate 32. A positioning column 34 is slidably installed at the upper end of the sliding plate 33. A cleaning block 39 is fixedly installed at the lower end of the sliding plate 33. The impurities on the surface of the corrugated cardboard are removed by the cleaning block 39.

[0059] In this embodiment, a guiding groove is formed on one side of the limiting plate 32, and the inner wall of the guiding groove is slidably connected to the outer surface of the sliding plate 33. At the same time, holes are formed on both sides of the sliding plate 33, and the inner walls of the holes are slidably connected to the outer surface of the positioning column 34, so that the sliding plate 33 is always in a stable state during movement.

[0060] Furthermore, movable rods 35 are rotatably installed at the opposite ends of the fixed block 31 and the sliding plate 33, and a pressing block 36 is rotatably installed at the ends of the two movable rods 35. A telescopic rod 37 is rotatably installed at the end of the pressing block 36. A second elastic member 38 is sleeved on the outer surface of the telescopic rod 37, and the upper end of the second elastic member 38 is connected to the fixed block 31, and the lower end of the second elastic member 38 is connected to the end of the telescopic rod 37.

[0061] Specifically, when the cleaning block 39 is attached to the outer surface of the corrugated cardboard, in cooperation with the second elastic member 38, the cleaning block 39 presses tightly against the outer surface of the corrugated cardboard. When the corrugated cardboard moves slowly, the residues on the outer surface of the corrugated cardboard are removed, and the uncompletely adhered parts are pressed tightly together, thereby reducing the errors generated during detection.

[0062] When the cleaning block 39 first comes into contact with the corrugated cardboard, the force is transmitted to the movable rod 35 through the slide plate 33. At the same time, it is cooperatively rotated and installed on the movable rod 35 to transmit the force to the telescopic rod 37. The telescopic rod 37 and the second elastic member 38 buffer it, so that the cleaning block 39 is attached to the outer surface of the corrugated cardboard with the optimal force. The second elastic member 38 is an elastic component such as a spring, and the cleaning block 39 is tightly pressed against the corrugated cardboard through the second elastic member 38.

[0063] The control device can select a single-chip microcomputer as the control terminal. In this embodiment, the single-chip microcomputer is a typical embedded microcontroller (Micro controller Unit), which is composed of an arithmetic unit, a controller, a memory, input and output devices, etc., and is equivalent to a miniature computer. Compared with the general-purpose microprocessor applied in personal computers, it emphasizes more on self-supply (without external hardware) and cost savings. Its greatest advantage is its small size, which can be placed inside the instrument, but its storage capacity is small, the input and output interfaces are simple, and the function consumption is low.

[0064] Embodiment 2:

[0065] A corrugated cardboard machine includes the corrugated cardboard thickness detection device shown in any one of the above, and is installed at the output end of the corrugated cardboard detection device.

[0066] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A corrugated cardboard thickness detection device, characterized in that: It comprises a base (1), a support plate (11) being fixedly mounted on the upper end of the base (1), and a cleaning component (3) being arranged on the support plate (11), and impurities adhering to the surface of the corrugated cardboard are cleaned by the cleaning component (3); A pressing component (2) is mounted on one side of the base (1), and the edge of the corrugated cardboard is cleaned by the pressing component (2); The pressing assembly (2) comprises a bottom plate (21) fixedly connected to the base (1), a driving member (22) is fixedly mounted on the end of the bottom plate (21), a screw rod (221) is fixedly mounted on the output end of the driving member (22), and a slider (23) is slidably mounted on the upper end of the bottom plate (21), and the end of the slider (23) is slidably connected to the outer surface of the screw rod (221); A sliding groove (231) is provided on one side of the sliding block (233), a rotating block (24) is slidably mounted on the inner wall of the sliding groove (231), an end of the rotating block (24) is rotatably connected to one side of the bottom plate (21), and the end of the rotating block (24) penetrates and extends to the other end of the bottom plate (21), an adjusting block (27) is fixedly mounted on the end of the rotating block (24), a baffle (28) is fixedly mounted on the end of the adjusting block (27), and a pressing block (281) is clamped on the end of the baffle (28), and the corrugated paperboard is pressed by the pressing block (281).

2. A corrugated cardboard thickness detection device according to claim 1, characterized in that: A driving rod (241) is fixedly mounted on the end of the rotating block (24), and a telescopic member (242) is clamped on one end of the driving rod (241) away from the rotating block (24).

3. A corrugated cardboard thickness detection device according to claim 2, characterized in that: A positioning plate (25) is fixedly mounted on one end of the bottom plate (21) away from the rotating block (24), and the outer surface of the positioning plate (25) is inclined; A power rod (26) is rotatably mounted on one end of the adjustment block (27) away from the baffle plate (28), the end of the power rod (26) is connected to the end of the telescopic member (242), and the outer surface of the power rod (26) is slidably connected to the outer surface of the positioning plate (25).

4. A corrugated board thickness detection device according to claim 3, characterized in that: A circular ring (29) is fixedly mounted at the connection between the power rod (26) and the adjustment block (27), and a circular plate (291) is fixedly mounted at the end of the circular ring (29), and a clamping block (297) is rotatably mounted between the circular plate (291) and the circular ring (29).

5. A corrugated board thickness detection device according to claim 4, characterized in that: A ratchet gear (292) is rotatably mounted on the upper end of the circular plate (291), a fixing rod (293) is rotatably mounted on the upper end of the ratchet gear (292), and a connecting block (294) is slidably mounted on the outer surface of the fixing rod (293); A first elastic member (298) is sleeved on the outer surface of the fixing rod (293), the upper end of the first elastic member (298) is connected to the lower end of the connecting block (294), and the lower end of the first elastic member (298) is connected to the upper end of the ratchet gear (292).

6. A corrugated board thickness detection device according to claim 5, characterized in that: A moving rod (295) is rotatably mounted on the outer surface of the connecting block (294), and a push rod (296) is rotatably mounted on one end of the moving rod (295) away from the connecting block (294). At the same time, the end of the push rod (296) is rotatably connected to the end of the clamping block (297), and the outer surface of the clamping block (297) is meshed with the outer surface of the ratchet gear (292).

7. A corrugated board thickness detection device according to claim 6, characterized in that: A transmission block (299) is fixedly mounted on the lower end of the ratchet gear (292), and the lower end of the transmission block (299) penetrates and extends to the lower end of the circular plate (291). A transmission member (282) is clamped on the outer surface of the transmission block (299), and the other end of the transmission member (282) is in contact with the outer surface of the pressing block (281).

8. A corrugated board thickness detection device according to claim 1, characterized in that: The cleaning assembly (3) comprises a fixed block (31) slidably connected to the support plate (11); a limit plate (32) is fixedly mounted on the lower end of the fixed block (31); a slide plate (33) is slidably mounted on one side of the limit plate (32); a positioning column (34) is slidably mounted on the upper end of the slide plate (33); and a cleaning block (39) is fixedly mounted on the lower end of the slide plate (33); impurities on the surface of the corrugated paperboard are removed by the cleaning block (39).

9. A corrugated board thickness detection device according to claim 8, characterized in that: A movable rod (35) is rotatably mounted on one end of the fixed block (31) opposite to the slide plate (33), and an extrusion block (36) is rotatably mounted on the ends of the two movable rods (35), and a telescopic rod (37) is rotatably mounted on the ends of the extrusion blocks (36), and a second elastic member (38) is sleeved on the outer surface of the telescopic rod (37), and the upper end of the second elastic member (38) is connected to the fixed block (31), and the lower end of the second elastic member (38) is connected to the end of the telescopic rod (37).

10. A corrugated board machine, characterized in that: The device comprises the corrugated cardboard thickness detection device according to any one of claims 1 to 9 and is installed at the output end of the corrugated cardboard detection device.

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