Defective product detecting paper case paste box machine

Abstract

The application relates to a defective product detection paper shell paste box machine and relates to the technical field of paper shell detection. The machine comprises a paper drawing mechanism, a paper conveying mechanism and a detection mechanism which are sequentially connected. The paper drawing mechanism and the paper conveying mechanism are arranged on a workbench. The paper drawing mechanism is used for sequentially conveying paper shells to the paper conveying mechanism. The paper conveying mechanism is used for conveying the paper shells to the detection mechanism. The detection mechanism comprises a detection assembly and a kick-off assembly which are arranged on the workbench. The detection assembly is used for detecting the quality of the paper shells and conveying the paper shells to the kick-off assembly. The kick-off assembly is used for separating the unqualified paper shells. The application has the effects of automatically separating defective products and improving production efficiency.

Description

Technical Field

[0001] This application relates to the field of paperboard inspection, and in particular to a paperboard gluing machine for detecting defective products. Background Technology

[0002] In the paper box packaging production process, the gluing machine is a key piece of equipment that folds, applies glue, and bonds die-cut paper shells to form paper boxes. Traditional gluing machines cannot automatically identify and remove defective paper shells with printing errors, die-cutting deviations, or stains during operation. This results in defective products being mixed into subsequent processes and ultimately entering the finished packaging, affecting product quality and corporate reputation.

[0003] Currently, although some production lines have introduced visual inspection equipment, most of them are independent inspection systems. The cardboard boxes need to be manually moved to the inspection station. When the inspection system detects that the cardboard boxes are unqualified, they need to be manually separated, which leads to low efficiency and needs to be improved. Summary of the Invention

[0004] To improve the problem of low efficiency in separating defective cardboard boxes, this application provides a defective cardboard box gluing machine.

[0005] The defective cardboard gluing machine provided in this application adopts the following technical solution: A defective cardboard box gluing machine includes a paper-drawing mechanism, a paper-feeding mechanism, and a detection mechanism connected in sequence. The paper-drawing mechanism and the paper-feeding mechanism are both mounted on a work frame. The paper-drawing mechanism is used to convey cardboard boxes sequentially to the paper-feeding mechanism, and the paper-feeding mechanism is used to convey the cardboard boxes to the detection mechanism. The detection mechanism includes a detection component and a waste-removal component mounted on the work frame. The detection component is used to detect the quality of the cardboard boxes and transport them to the waste-removal component. The waste-removal component is used to separate defective cardboard boxes.

[0006] By adopting the above technical solutions, the paper feeding mechanism achieves automatic, sheet-by-sheet supply of cardboard; the paper feeding mechanism ensures that the cardboard enters the inspection area smoothly and accurately; the inspection component acquires and analyzes images of the cardboard; and the waste removal component automatically separates defective products based on the analysis results. The entire process is automated and continuous, requiring no manual intervention, significantly improving production efficiency and ensuring that only qualified cardboard can enter the subsequent box-gluing process, thereby improving the overall quality of the final product.

[0007] Optionally, the tissue dispensing mechanism includes a stop block, a tissue dispensing conveyor belt, and two baffles. The stop block and the two baffles are all mounted on the work frame. The tissue dispensing conveyor belt is rotatably connected to the work frame. The two baffles are located on both sides of the tissue dispensing conveyor belt, and the stop block is located between the two baffles. The stop block, the tissue dispensing conveyor belt, and the baffles together enclose a storage space for stacking paper boxes. The bottom end of the paper box abuts against the tissue dispensing conveyor belt.

[0008] By adopting the above technical solution, the baffle, barrier, and tissue conveyor belt form a storage space in which the stacked tissues are precisely confined. When the tissue conveyor belt starts, the friction on its surface acts only on the bottom layer of tissues, pulling them out of the stack and conveying them forward, thereby achieving precise single-sheet tissue dispensing and effectively preventing paper jams or detection errors caused by multiple tissues being carried into subsequent mechanisms at the same time.

[0009] Optionally, the paper feeding mechanism includes a paper feeding conveyor belt and a pressure roller located above the paper feeding conveyor belt. The paper feeding conveyor belt is rotatably connected to the work frame. The pressure roller is mounted on the work frame via an adjustment component. The adjustment component is used to adjust the position of the pressure roller. A rotating belt for pressing down the paper shell is sleeved on the pressure roller.

[0010] By adopting the above technical solution, the paper conveyor belt provides forward propulsion, while the pressure rollers above press down on the paperboard to prevent it from warping, drifting, or slipping during high-speed transport. The adjustment component can flexibly adjust the position of the pressure rollers according to paperboards of different sizes, ensuring that the paperboards enter the detection component with a stable posture and speed, thereby improving the accuracy of detection.

[0011] Optionally, the detection assembly includes a conveyor belt for conveying cardboard, a fan, a lamp, a mirror, a glass, and a camera. The conveyor belt is rotatably connected to the work frame and has several through holes. The fan is mounted on the work frame and located above the conveyor belt, with its outlet facing the conveyor belt. The lamp illuminates the surface of the cardboard on the conveyor belt. The glass is fixed on the work frame and located below the conveyor belt. The mirror is mounted on the work frame and located below the glass, with the mirror aligned with the conveyor belt to refract the image of the cardboard to the camera. The camera is mounted on the work frame, with its lens facing the mirror.

[0012] By employing the above technical solution, the fan generates negative pressure through the holes in the conveyor belt, firmly adhering the cardboard to the surface of the conveyor belt. The lamp illuminates the conveyor belt, providing ample and uniform lighting for the camera. The mirror and glass form a light refraction system, allowing the camera to capture a clear image of the bottom surface of the cardboard from below at a suitable angle and distance, thus enabling comprehensive inspection of both the front and back of the cardboard.

[0013] Optionally, the waste removal assembly includes a waste removal conveyor belt and an air gun. The waste removal conveyor belt is spliced ​​to the end of the conveyor belt to receive cardboard boxes on the conveyor belt. A defective product conveyor belt is provided on the work frame. One end of the defective product conveyor belt is connected to the end of the waste removal conveyor belt, and the end of the defective product conveyor belt away from the waste removal conveyor belt is inclined downward. The air gun is located on the work frame, and the nozzle of the air gun is aimed at the waste removal conveyor belt to blow the defective cardboard boxes onto the defective product conveyor belt.

[0014] By adopting the above technical solution, qualified cardboard boxes are directly transported to the next process by the waste removal conveyor belt. Once a defective product is detected, when the defective cardboard box moves to the end of the waste removal conveyor belt, the air gun is activated, and high-pressure gas is used to blow it into the inclined defective product conveyor belt for centralized collection, thereby realizing the automatic separation of qualified and defective products.

[0015] Optionally, the work frame is provided with a mounting box, the mirror is mounted on the mounting box, the mounting box is provided with a transparent strip, the transparent strip covers the mirror, the mirror is provided with rotating rods at both ends in the width direction, the transparent strip is sleeved on the two rotating rods, the rotating rods rotate to drive the transparent strip to move, the mounting box is provided with a cleaning component, the cleaning component contacts the transparent strip and is used to clean the transparent strip.

[0016] By adopting the above technical solution, a movable transparent strip acts as a protective screen for the lens. Dust first settles on the transparent strip, rather than directly contaminating the lens. When the transparent strip becomes dirty, simply driving the rotating rod moves the clean part to the working area, while the dirty part is cleaned by the cleaning components. This extends the maintenance-free cycle of the equipment, ensures long-term stable image quality, and avoids frequent downtime for cleaning or false diagnostics caused by lens contamination.

[0017] Optionally, the cleaning assembly includes a rotating motor, a connecting plate, and two cleaning rollers. The rotating motor is mounted on the mounting box, and the middle part of the connecting plate is fixed to the output end of the rotating motor to drive the connecting plate to rotate. The two cleaning rollers are located at both ends of the connecting plate, and the cleaning rollers abut against the transparent strip.

[0018] By adopting the above technical solution, the rotating motor drives the connecting plate to rotate, causing the two cleaning rollers to move in a circular motion around the center of the connecting plate. That is, the two cleaning rollers move in opposite directions, thereby pushing against the transparent strip and causing it to bend and deform. Because the directions of pushing are opposite, the transparent strip becomes S-shaped. Due to the circular motion of the cleaning rollers, a certain tension and bending force are applied to the transparent strip, increasing the contact pressure and friction. When the transparent strip moves, the cleaning rollers can effectively peel off and remove stubborn dust and paper scraps from the surface of the transparent strip.

[0019] Optionally, the cleaning roller includes two cleaning rods arranged opposite each other, the ends of the cleaning rods being rotatably connected to the connecting plate, the transparent strip passing between the two cleaning rods, and brushes provided on the periphery of the cleaning rods, with the brushes of the cleaning rods abutting against the transparent strip.

[0020] By employing the above technical solution, two cleaning rods equipped with brushes clamp the transparent strip from both sides, enabling simultaneous cleaning of both sides of the strip. The brushes are made of soft material, effectively removing dust without scratching the surface of the transparent strip. The clamping structure also ensures that the transparent strip remains taut throughout the cleaning process, improving cleaning effectiveness and operational stability.

[0021] Optionally, the mounting box is provided with a rotating assembly, which is connected to the cleaning rod and is used to drive the cleaning rod to rotate. The rotating assembly includes an internal gear and a rotating gear. The internal gear is fixed on the mounting box and is coaxial with the output shaft of the rotating motor. The rotating gear is coaxially sleeved on the end of the cleaning rod and is fixed to the cleaning rod. The rotating gear meshes with the internal gear.

[0022] By employing the above technical solution, a single rotating motor simultaneously realizes the revolution of the connecting plate and the rotation of the cleaning rod. When the connecting plate revolves around the axis of the rotating motor, the rotating gear at the end of the cleaning rod meshes with a fixed internal gear, thereby driving the cleaning rod to rotate at high speed around its own axis. The rotating brush has a stronger cleaning ability than simple passive friction, more thoroughly removing dust from the transparent strip and further improving cleaning efficiency and effectiveness.

[0023] Optionally, the cleaning rod has a cavity inside, and a fan is installed in the cavity. The fan is fixed to the connecting plate by a connecting rod. The fan is used to draw the gas at the transparent strip away from the transparent strip. Several connecting holes are opened through the periphery of the cleaning rod.

[0024] By adopting the above technical solution, the suction effect of the fan creates negative pressure on the surface of the cleaning rod through the connecting hole, immediately sucking the dust brushed off by the brush into the cavity and expelling it from the other side of the fan. When the connecting hole on the cleaning rod is facing the transparent strip, the connecting hole in that area has suction force, increasing the function of actively sucking up dust, thus facilitating the adsorption of impurities on the transparent strip and improving the cleaning effect. When the connecting hole with adsorbed impurities rotates with the cleaning rod to the back of the fan, the fan's air outlet faces outward, and the airflow blows the dust off the connecting hole, achieving self-cleaning of the cleaning rod and ensuring the long-term effective operation of the cleaning roller.

[0025] In summary, this application includes at least one of the following beneficial effects: 1. A movable transparent strip acts as a protective screen for the lens. Dust first settles on the transparent strip, rather than directly contaminating the lens. When the transparent strip becomes dirty, simply drive the rotating rod to move the clean part to the working area, while the dirty part is cleaned by the cleaning components. This extends the maintenance-free cycle of the equipment, ensures long-term stable image quality, and avoids frequent downtime for cleaning or false diagnostics due to lens contamination. 2. The rotating motor drives the connecting plate to rotate, causing the two cleaning rollers to move in opposite directions around the center of the connecting plate. This pushes against the transparent strip, causing it to bend and deform. Because the directions of the push are opposite, the transparent strip forms an S-shape. The circular motion of the cleaning rollers applies tension and bending force to the transparent strip, increasing the contact pressure and friction. As the transparent strip moves, the cleaning rollers effectively peel off and remove stubborn dust and paper scraps from its surface. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a defective cardboard box gluing machine according to an embodiment of this application; Figure 2 This is a side view of a defective cardboard box gluing machine according to an embodiment of this application; Figure 3 This is a schematic diagram of the tissue dispenser mechanism; Figure 4 This is a schematic diagram of the paper feeding mechanism; Figure 5 This is a structural diagram of the mounting box and the mirror; Figure 6 This is a structural diagram of the cleaning components and the transparent strip; Figure 7 This is a structural diagram showing the connection between the fan and the cleaning components.

[0027] In the diagram: 1. Paper feeding mechanism; 11. Stop block; 12. Paper feeding conveyor belt; 13. Baffle; 2. Paper feeding mechanism; 21. Paper feeding conveyor belt; 22. Pressure roller; 23. Rotating belt; 24. Adjustment component; 3. Detection mechanism; 31. Detection component; 311. Conveyor belt; 3111. Through hole; 312. Fan; 313. Lamp; 314. Mirror; 315. Camera; 32. Waste removal component; 321. Waste removal conveyor belt; 322. Air gun; 323. Defective product conveyor belt; 4. Mounting box; 41. Rotating rod; 5. Transparent strip; 6. Cleaning component; 61. Rotating motor; 62. Connecting plate; 63. Cleaning roller; 631. Cleaning rod; 632. Brush; 633. Cavity; 634. Connecting hole; 7. Rotating component; 71. Internal gear; 72. Rotating gear; 8. Fan; 81. Connecting rod; 9. Work frame. Detailed Implementation

[0028] The following is in conjunction with the appendixFigures 1-7 This application will be described in further detail.

[0029] This application discloses a defective cardboard box gluing machine. (Refer to...) Figure 1 and Figure 2 The defective product detection cardboard box gluing machine includes a work frame 9, and a paper feeding mechanism 1, a paper feeding mechanism 2 and a detection mechanism 3 connected in sequence on the work frame 9.

[0030] Reference Figure 2 and Figure 3 The paper feeding mechanism 1 is used to convey stacked paper sheets one by one to the paper feeding mechanism 2. Specifically, the paper feeding mechanism 1 includes a stop block 11, a paper feeding conveyor belt 12, and two baffles 13. The stop block 11 and the two baffles 13 are all mounted on the work frame 9. The paper feeding conveyor belt 12 is rotatably connected to the work frame 9 via rollers and is driven by a motor. The two baffles 13 are vertically arranged and located on both sides of the width direction of the paper feeding conveyor belt 12. The stop block 11 is located between the two baffles 13 and is positioned above the paper feeding conveyor belt 12. The stop block 11, the upper surface of the paper feeding conveyor belt 12, and the inner sidewalls of the two baffles 13 together form a storage space for stacking paper sheets. The bottommost end of the paper sheet is in direct contact with the surface of the paper feeding conveyor belt 12 and generates friction.

[0031] When the tissue delivery conveyor 12 starts, the friction on its surface pulls the bottom layer of tissues out of the stack and conveys them forward, thereby achieving precise single-sheet tissue delivery and effectively preventing paper jams or detection errors caused by multiple tissues being carried into subsequent mechanisms at the same time.

[0032] Reference Figure 1 and Figure 4 The paper feeding mechanism 2 is used to smoothly accelerate and transport the paper sheets from the paper feeding mechanism 1 to the detection mechanism 3. The paper feeding mechanism 2 includes a paper feeding conveyor belt 21 and a pressure roller 22 located directly above the paper feeding conveyor belt 21. The paper feeding conveyor belt 21 is rotatably connected to the work frame 9. The pressure roller 22 is mounted on the work frame 9 via an adjustment assembly 24 that can adjust its position. In order to increase the contact area and friction with the paper sheets, a rotating belt 23 is fitted on the pressure roller 22, which together with the paper feeding conveyor belt 21 clamps and transports the paper sheets.

[0033] Reference Figure 4 Specifically, the adjusting component 24 includes an adjusting block and bolts. The pressure roller 22 is rotatably connected to the bottom of the adjusting block. The work frame 9 is provided with a sliding groove, which is arranged along the width direction of the work frame 9. Part of the adjusting block is embedded in the sliding groove and can move within the sliding groove. The bolt passes through the adjusting block and is threadedly connected to the adjusting block. The bolt can abut against the work frame 9 to fix the adjusting block on the work frame 9, thereby fixing the position of the pressure roller 22.

[0034] Reference Figure 1 and Figure 2 The inspection unit 3 includes an inspection component 31 and a waste removal component 32. The inspection component 31 is used for image acquisition and quality judgment of the cardboard. The inspection component 31 includes a conveyor belt 311, a fan 312, a lamp 313, a mirror 314, glass, and a camera 315. The conveyor belt 311 is rotatably connected to the work frame 9, and its surface has multiple through holes 3111 for ventilation. The fan 312 is fixed to the work frame 9 and located above the conveyor belt 311, with its air outlet vertically downward towards the conveyor belt 311. The lamp 313 (e.g., an LED strip light 313) is located below the conveyor belt 311 to illuminate its surface. The glass is fixed to the work frame 9 and located below the conveyor belt 311. The mirror 314 is mounted on a mounting box 4 inside the work frame 9, located below the glass, with its reflective surface tilted upward towards the conveyor belt 311. Camera 315 is fixed on work stand 9 with its lens facing mirror 314, and is used to take pictures of the bottom of the cardboard box refracted by mirror 314.

[0035] Fan 312 generates negative pressure through through holes 3111 on conveyor belt 311, firmly adhering the cardboard to the surface of conveyor belt 311. Lamp 313 illuminates the conveyor belt 311, providing sufficient and uniform illumination for camera 315. Mirror 314 and glass form a light refraction system, allowing camera 315 to capture a clear image of the bottom surface of the cardboard from below at a suitable angle and distance, thus achieving comprehensive inspection of both sides of the cardboard.

[0036] Reference Figure 5 and Figure 6 To prevent dust from falling on the mirror 314 and affecting the image, the mounting box 4 is equipped with a transparent strip 5, which is made of PVC soft glass and covers the mirror 314. Each end of the mirror 314 has a motor-driven rotating rod 41, and the two ends of the transparent strip 5 are respectively fitted onto the two rotating rods 41, forming a movable ring structure. The mounting box 4 also includes a cleaning component 6 for cleaning the soiled portion of the transparent strip 5.

[0037] The movable transparent strip 5 acts as a protective screen for the lens. Dust first settles on the transparent strip 5, rather than directly contaminating the mirror 314. When the transparent strip 5 becomes dirty, simply driving the rotating rod 41 moves the clean part to the working area, while the dirty part is cleaned by the cleaning component 6. This extends the maintenance-free cycle of the equipment, ensures long-term stable image quality, and avoids frequent downtime for cleaning or false alarms caused by lens contamination.

[0038] Reference Figure 5 and Figure 6Specifically, the cleaning assembly 6 includes a rotating motor 61, a connecting plate 62, and two cleaning rollers 63. The rotating motor 61 is fixed to the side wall of the mounting box 4. The connecting plate 62 is elongated, with its middle section fixedly connected to the output shaft of the rotating motor 61. The two cleaning rollers 63 are respectively disposed at both ends of the connecting plate 62. Each cleaning roller 63 includes two opposing cleaning rods 631, with a transparent strip 5 passing between the two cleaning rods 631. The circumferential surface of the cleaning rods 631 is provided with a brush 632 for cleaning. The ends of the cleaning rods 631 are rotatably connected to the connecting plate 62. The mounting box 4 is also provided with a rotating assembly 7 for driving the cleaning rods 631 to rotate. The rotating assembly 7 includes an internal gear 71 fixed to the mounting box 4 and a rotating gear 72 fixed to the end of the cleaning rod 631. The internal gear 71 is coaxial with the output shaft of the rotating motor 61, and the rotating gear 72 meshes with the internal gear 71.

[0039] Reference Figure 5 and Figure 6 A rotating motor 61 is used to simultaneously realize the revolution of the connecting plate 62 and the rotation of the cleaning rod 631. When the connecting plate 62 revolves around the axis of the rotating motor 61, a certain tension and bending force are applied to the transparent strip 5, increasing the contact pressure and friction. When the transparent strip 5 moves, the cleaning roller 63 can effectively peel off and remove stubborn dust and paper scraps from the surface of the transparent strip 5.

[0040] Reference Figure 5 and Figure 6 Two cleaning rods 631, each equipped with a brush 632, clamp the transparent strip 5 from both sides, enabling simultaneous cleaning of both sides of the transparent strip 5. The circular motion of the cleaning rods 631 causes the rotating gear 72 at the end of the cleaning rod 631 to mesh with a fixed internal gear 71, thereby driving the cleaning rod 631 to rotate at high speed around its own axis. The rotating brushes 632 have a stronger cleaning ability than simple passive friction, and can more thoroughly remove dust from the transparent strip 5, further improving cleaning efficiency and effectiveness.

[0041] Reference Figure 6 and Figure 7 Furthermore, each cleaning rod 631 has an internal cavity 633, within which a fan 8 is installed. The fan 8 is fixed to the connecting plate 62 by a connecting rod 81, so that the fan 8 remains stationary when the connecting plate 62 rotates. Multiple connecting holes 634 communicating with the cavities 633 are provided circumferentially through the cleaning rod 631.

[0042] The suction effect of fan 8 creates negative pressure on the surface of cleaning rod 631 through connection hole 634, immediately drawing dust brushed off by brush 632 into cavity 633 and expelling it from the other side of fan 8. When connection hole 634 on cleaning rod 631 faces transparent strip 5, the connection hole 634 in that area has suction, increasing the function of actively sucking up dust, thus facilitating the adsorption of impurities on transparent strip 5 and improving cleaning effect. When the connection hole 634 with adsorbed impurities rotates with cleaning rod 631 to the back of fan 8, the air outlet of fan 8 faces outward, and the airflow blows away the dust on the connection hole 634, achieving self-cleaning of cleaning rod 631 and ensuring long-term effective operation of cleaning roller 63.

[0043] Reference Figure 1 and Figure 2 The defective product removal assembly 32 is used to separate defective products based on the detection results of the camera 315. The defective product removal assembly 32 includes a defective product removal conveyor belt 321 and an air gun 322. The starting end of the defective product removal conveyor belt 321 is tightly connected to the end of the conveyor belt 311 to receive the inspected cardboard. On the work frame 9, located on one side of the defective product removal conveyor belt 321, a downwardly inclined defective product conveyor belt 323 is also provided, with its upper end connected to the side of the defective product removal conveyor belt 321. The air gun 322 is fixed on the work frame 9, with its nozzle aligned with a position on the defective product removal conveyor belt 321 opposite to the entrance of the defective product conveyor belt 323.

[0044] The implementation principle of a defective cardboard box gluing machine according to an embodiment of this application is as follows: the paper feeding mechanism 1 realizes automatic, sheet-by-sheet supply of cardboard; the paper feeding mechanism 2 ensures that the cardboard enters the detection area smoothly and accurately; the detection component 31 performs image acquisition and analysis on the cardboard; and the waste removal component 32 automatically separates defective products based on the analysis results. The entire process is automated and continuous, requiring no manual intervention, significantly improving production efficiency, and ensuring that only qualified cardboard can enter the subsequent gluing process, thereby improving the overall quality of the final product.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A defective cardboard box gluing machine, characterized in that, The device includes a paper-drawing mechanism (1), a paper-feeding mechanism (2), and a detection mechanism (3) connected in sequence. The paper-drawing mechanism (1) and the paper-feeding mechanism (2) are both located on the work frame (9). The paper-drawing mechanism (1) is used to convey paper boxes to the paper-feeding mechanism (2) in sequence. The paper-feeding mechanism (2) is used to convey paper boxes to the detection mechanism (3). The detection mechanism (3) includes a detection component (31) and a waste-removing component (32) located on the work frame (9). The detection component (31) is used to detect the quality of the paper boxes and transport the paper boxes to the waste-removing component (32). The waste-removing component (32) is used to separate unqualified paper boxes.

2. The defective product detection cardboard box gluing machine according to claim 1, characterized in that, The paper-drawing mechanism (1) includes a stop (11), a paper-drawing conveyor belt (12), and two baffles (13). The stop (11) and the two baffles (13) are both mounted on the work frame (9). The paper-drawing conveyor belt (12) is rotatably connected to the work frame (9). The two baffles (13) are located on both sides of the paper-drawing conveyor belt (12), and the stop (11) is located between the two baffles (13). The stop (11), the paper-drawing conveyor belt (12), and the baffles (13) together enclose a storage space for stacking paper boxes. The bottom end of the paper box abuts against the paper-drawing conveyor belt (12).

3. The defective product detection cardboard box gluing machine according to claim 1, characterized in that, The paper feeding mechanism (2) includes a paper feeding conveyor belt (21) and a pressure roller (22) located above the paper feeding conveyor belt (21). The paper feeding conveyor belt (21) is rotatably connected to the work frame (9). The pressure roller (22) is mounted on the work frame (9) via an adjustment component (24). The adjustment component (24) is used to adjust the position of the pressure roller (22). A rotating belt (23) for pressing down the paper shell is sleeved on the pressure roller (22).

4. The defective product detection cardboard box gluing machine according to claim 1, characterized in that, The detection assembly (31) includes a conveyor belt (311) for conveying cardboard, a fan (312), a lamp (313), a mirror (314), glass, and a camera (315). The conveyor belt (311) is rotatably connected to the work frame (9). Several through holes (3111) are provided through the conveyor belt (311). The fan (312) is mounted on the work frame (9) and located above the conveyor belt (311). The air outlet of the fan (312) faces the conveyor belt (311). The lamp (313) illuminates the surface of the cardboard on the conveyor belt (311). The glass is fixed on the work frame (9) and located below the conveyor belt (311). The mirror (314) is mounted on the work frame (9) and located below the glass. The mirror (314) is aligned with the conveyor belt (311) to refract the image of the cardboard to the camera (315). The camera (315) is mounted on the work frame (9) and the lens of the camera (315) faces the mirror (314).

5. The defective product detection cardboard box gluing machine according to claim 4, characterized in that, The waste removal assembly (32) includes a waste removal conveyor belt (321) and an air gun (322). The waste removal conveyor belt (321) is spliced ​​to the end of the conveyor belt (311) to receive cardboard boxes on the conveyor belt (311). The work frame (9) is provided with a defective product conveyor belt (323). One end of the defective product conveyor belt (323) is connected to the end of the waste removal conveyor belt (321), and the end of the defective product conveyor belt (323) away from the waste removal conveyor belt (321) is inclined downward. The air gun (322) is provided on the work frame (9), and the nozzle of the air gun (322) is aligned with the waste removal conveyor belt (321) to blow the defective cardboard boxes onto the defective product conveyor belt (323).

6. The defective product detection cardboard box gluing machine according to claim 4, characterized in that, The work frame (9) is provided with a mounting box (4), the mirror (314) is mounted on the mounting box (4), the mounting box (4) is provided with a transparent strip (5), the transparent strip (5) covers the mirror (314), the mirror (314) is provided with rotating rods (41) at both ends in the width direction, the transparent strip (5) is sleeved on the two rotating rods (41), the rotating rods (41) rotate on their own to drive the transparent strip (5) to move, the mounting box (4) is provided with a cleaning component (6), the cleaning component (6) contacts the transparent strip (5) and is used to clean the transparent strip (5).

7. The defective product detection cardboard box gluing machine according to claim 6, characterized in that, The cleaning assembly (6) includes a rotating motor (61), a connecting plate (62), and two cleaning rollers (63). The rotating motor (61) is mounted on the mounting box (4). The middle part of the connecting plate (62) is fixed to the output end of the rotating motor (61) to drive the connecting plate (62) to rotate. The two cleaning rollers (63) are located at both ends of the connecting plate (62) and abut against the transparent strip (5).

8. The defective product detection cardboard box gluing machine according to claim 7, characterized in that, The cleaning roller (63) includes two cleaning rods (631) arranged opposite to each other. The ends of the cleaning rods (631) are rotatably connected to the connecting plate (62). The transparent strip (5) passes between the two cleaning rods (631). A brush (632) is provided on the periphery of the cleaning rod (631), and the brush (632) of the cleaning rod (631) abuts against the transparent strip (5).

9. The defective product detection cardboard box gluing machine according to claim 8, characterized in that, The mounting box (4) is provided with a rotating assembly (7), which is connected to the cleaning rod (631) and is used to drive the cleaning rod (631) to rotate. The rotating assembly (7) includes an internal gear (71) and a rotating gear (72). The internal gear (71) is fixed on the mounting box (4) and is coaxial with the output shaft of the rotating motor (61). The rotating gear (72) is coaxially sleeved on the end of the cleaning rod (631) and is fixed to the cleaning rod (631). The rotating gear (72) meshes with the internal gear (71).

10. The defective product detection cardboard box gluing machine according to claim 8, characterized in that, The cleaning rod (631) has a cavity (633) inside, and a fan (8) is provided in the cavity (633). The fan (8) is fixed to the connecting plate (62) by a connecting rod (81). The fan (8) is used to draw the gas at the transparent strip (5) away from the transparent strip (5). Several connecting holes (634) are opened through the periphery of the cleaning rod (631).

Images