Thickness detection device for wood pulp black card finished product and working method thereof

Abstract

The invention relates to a thickness detection device for wood pulp black card finished products and a working method thereof.The thickness detection device comprises a rack and a feeding mechanism, the feeding mechanism is installed in the rack, a plurality of belt rollers are installed in the rack and are in transmission connection through a conveying belt, two conveying rollers are installed in the rack, and the conveying rollers are in transmission connection through a conveying belt. A supporting platform is mounted between the two conveying rollers; the first measuring rollers and the second measuring rollers are arranged in a complementary staggered mode, no missing scanning on the surface of the wood pulp black card is guaranteed, measurement blind areas are eliminated, adjacent areas of the same card are detected in stages through the two sets of rollers, data are collected in real time in combination with a displacement sensor, and high-resolution mapping of the whole surface thickness is achieved. The roller flexibly moves up and down through the sliding groove and the bearing to adapt to different thickness changes, the displacement sensor directly detects the displacement amount of the roller, the measurement sensitivity is improved, batch detection is supported through the equal-interval layout of the roller frame and the measurement base, and the device is suitable for rapid adaptation of wood pulp black cards of different sizes.

Description

Technical Field

[0001] This invention relates to the field of wood pulp black card processing technology, and in particular to a thickness detection device for finished wood pulp black cards and its working method. Background Technology

[0002] Wood pulp black cardboard is a high-end packaging material, and its thickness uniformity directly affects the quality of printing, die-cutting, and finished products.

[0003] Traditional inspection methods rely on manual sampling or single-point measurement, which has problems such as low efficiency, large error and inability to detect comprehensively. Existing automatic thickness measurement equipment usually uses fixed sensors, which are difficult to adapt to black cards of different sizes and have insufficient measurement coverage. Summary of the Invention

[0004] The problem solved by this invention is to provide a thickness detection device and its working method for finished wood pulp black card products. It solves the problems of low efficiency, large error and inability to detect comprehensively caused by traditional detection methods that rely on manual sampling or single-point measurement. Existing automatic thickness measurement equipment usually uses fixed sensors, which are difficult to adapt to black cards of different sizes and have insufficient measurement coverage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A thickness detection device for finished wood pulp black cardboard includes a frame and a feeding mechanism. The feeding mechanism is installed inside the frame, and several belt rollers are installed inside the frame and connected by a conveyor belt. Two conveyor rollers are installed inside the frame, and a support platform is installed between the two conveyor rollers. The top sides of the conveyor rollers and the support platform are flush. A transmission roller is installed inside the frame and above the support platform. A support rod is installed inside the frame, and several Z-shaped wheel frames are evenly spaced on the support rod. A first measuring roller and a second measuring roller are respectively installed on both sides of the wheel frames, and the first measuring roller and the second measuring roller are located above the conveyor rollers. Two measuring seats are installed inside the frame, and several displacement sensors are evenly spaced on the bottom side of the measuring seats, and the displacement sensors correspond to the first measuring roller and the second measuring roller respectively.

[0007] The distance between adjacent first measuring rollers is the same as the width of the second measuring roller, and the distance between adjacent second measuring rollers is the same as the width of the first measuring roller.

[0008] Preferably, the feeding mechanism includes a rotating base rotatably mounted in the frame, wherein a rotating shaft is rotatably mounted in the middle of the rotating base, and the rotating shaft is connected to the middle of the rotating box.

[0009] Preferably, a tube sheet is rotatably mounted on the bottom side of the rotating box, and a plurality of rotating tubes are fixedly mounted on the tube sheet at equal intervals. A suction cup is installed at the bottom of each rotating tube. The rotating tube located in the middle of the tube sheet is rotatably connected to the middle of the rotating box, and the tube sheets located at both ends of the tube sheet are located in rotating grooves opened at both ends of the rotating box. A rotary joint is installed at the top of the rotating tube in the middle of the tube sheet, and fixed joints are installed at the top of the rotating tubes at both ends of the tube sheet. Both the rotary joint and the fixed joint are connected to an air pump through an air pipe. A detection camera is installed on the bottom side of the rotating box.

[0010] Preferably, the end of the rotary base is equipped with a mounting shaft that is rotatably connected to the frame, and a first motor is mounted on the outside of the frame, with the output end of the first motor connected to the mounting shaft.

[0011] Preferably, an internal gear ring coaxial with the mounting shaft is installed on the inner wall of the frame, and a drive shaft is installed through the inside of the frame, with rotating teeth meshing with the internal gear ring installed at the end of the drive shaft.

[0012] Preferably, a worm gear is fitted in the middle of the drive shaft, and a worm wheel is installed in the rotating seat at the end of the shaft, with the worm wheel meshing with the worm gear.

[0013] Preferably, a motor is installed on the top side of the rotating box, and a drive tooth is installed at the output end of the motor inside the rotating box. A driven tooth is installed on the rotating tube located in the middle of the tube sheet, and the drive tooth meshes with the driven tooth.

[0014] Preferably, a second motor and a third motor are installed on the side wall of the frame. The second motor is connected to a belt roller located at the end of the conveyor belt, and the output end of the third motor is connected to a transmission roller.

[0015] Preferably, the wheel frame has sliding grooves on both sides of both ends, and wheel grooves are formed on both sides of the sliding grooves. A roller shaft is installed through the center of the first measuring roller and the second measuring roller. Roller seats are installed at both ends of the roller shaft in the sliding grooves, and bearings that roll along the wheel grooves are installed on both sides of the roller seats.

[0016] A method for operating a thickness detection device for finished wood pulp black cardboard products, the specific operating steps of which are as follows:

[0017] Step 1: The device is used in conjunction with a wood pulp black card stacking and feeding machine. The wood pulp black cards are stacked and placed on the stacking and feeding machine. At this time, the platform of the stacking and feeding machine moves up until the wood pulp black cards come into contact with the suction cups. At this time, the suction cups generate negative pressure under the action of the air pump to adsorb the wood pulp black cards. The first motor drives the mounting shaft and the rotating seat to rotate 180°. During the rotation, the rotating teeth move and rotate along the inner tooth ring. At this time, the rotating teeth drive the transmission shaft and the worm to rotate. The rotating worm drives the meshing worm wheel to rotate, thereby realizing the flipping of the turntable. The turntable and the wood pulp black cards are flipped 360°. After the flipping, the detection camera observes whether the end of the wood pulp black card is horizontal. When the end of the wood pulp black card is tilted, the motor drives the active tooth to rotate, which drives the meshing driven tooth and the rotating tube in the middle of the tube sheet to rotate. At this time, the tube sheet rotates around the rotating tube in the middle, thereby rotating and adjusting the wood pulp black cards adsorbed by the suction cups. After adjustment, the suction cups release the wood pulp black cards, and the wood pulp black cards fall onto the conveyor belt to move.

[0018] Step 2: As the wood pulp black card passes between the conveyor roller and the first measuring roller, the first measuring roller moves within the groove and wheel groove via a roller seat connected to the roller shaft and bearings, as the thickness of the wood pulp black card changes. The first measuring roller moves up and down, and the distance between the first measuring rollers is measured by a displacement sensor. When the wood pulp black card passes between the conveyor roller and the second measuring roller, the thickness of the portion of the wood pulp black card not traversed by the first measuring roller is measured using the same method. Through the cooperation of the first and second measuring rollers, the overall thickness measurement of the wood pulp black card is completed.

[0019] The beneficial effects of this invention are as follows: The first measuring roller and the second measuring roller are arranged in a complementary staggered manner to ensure that the surface of the wood pulp black card is scanned without omission, eliminating measurement blind spots. The two sets of rollers detect adjacent areas of the same card in stages, and combined with the displacement sensor to collect data in real time, a high-resolution mapping of the entire surface thickness is achieved. The rollers achieve flexible up and down displacement through the sliding groove and bearing to adapt to different thickness changes. The displacement sensor directly detects the roller displacement, improving measurement sensitivity. The equidistant layout of the wheel frame and the measuring seat supports batch testing and is suitable for rapid adaptation of wood pulp black cards of different sizes.

[0020] The feeding mechanism uses a rotating box and suction cups to pick up wood pulp black cards. As the feeding mechanism rotates as a whole, it moves the wood pulp black cards from the stacking feeder to the device. At the same time, the rotating box rotates 360° during the rotation, and the rotating base rotates around the mounting axis and the rotating box rotates around the rotating axis at the same time. This achieves automatic feeding and ensures that both sides of the wood pulp black card can be measured during subsequent repeated measurements.

[0021] The detection camera monitors the card's tilt status in real time, and the angle is adjusted by rotating the tube sheet via a motor to ensure that the wood pulp black card is placed horizontally, thus reducing measurement errors. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall first structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall second structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall third structure of the present invention;

[0025] Figure 4 This is a cross-sectional view of the present invention;

[0026] Figure 5 This is a cross-sectional view of the rotating box of the present invention.

[0027] Legend:

[0028] 1. Frame; 2. Feeding mechanism; 3. Belt roller; 4. Conveyor belt; 5. Conveyor roller; 6. Support platform; 7. Drive roller; 8. Wheel frame; 9. Support rod; 10. First measuring roller; 11. Second measuring roller; 12. Measuring seat; 13. Displacement sensor; 14. Mounting shaft; 15. Rotary seat; 16. Rotating shaft; 17. Rotary box; 18. Rotating tube; 19. Suction cup; 20. Tube sheet; 21. Internal gear ring; 22. Drive shaft; 23. Rotating gear; 24. Worm; 25. Worm wheel; 26. Motor; 27. Driving gear; 28. Driven gear; 29. ​​Rotary groove; 30. Detection camera; 31. First motor; 32. Second motor; 33. Third motor; 34. Slide groove; 35. Wheel groove; 36. Roller shaft; 37. Roller seat; 38. Bearing. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Specific implementation examples are given below.

[0031] See Figures 1-5A thickness detection device for finished wood pulp black cardboard includes a frame 1 and a feeding mechanism 2. The feeding mechanism 2 is installed inside the frame 1. The feeding mechanism 2 includes a rotating base 15 rotatably installed inside the frame 1. A rotating shaft 16 is rotatably installed in the middle of the rotating base 15 and is connected to the middle of a rotating box 17. A tube plate 20 is rotatably installed on the bottom side of the rotating box 17. A plurality of rotating tubes 18 are fixedly installed on the tube plate 20 at equal intervals. A suction cup 19 is installed at the bottom of the rotating tubes 18. The rotating tubes 18 located in the middle of the tube plate 20 are rotatably connected to the middle of the rotating box 17. The tube plates 20 located at both ends are located in rotating slots 29 opened at both ends of the rotating box 17. A rotary joint is installed at the top end of the rotating tubes 18 in the middle of the tube plate 20. A fixed joint is installed at the top end of the rotating tubes 18 at both ends of the tube plate 20. All fixed joints are connected to the air pump via air pipes. A detection camera 30 is installed on the bottom side of the rotating box 17. A mounting shaft 14, which is rotatably connected to the frame 1, is installed at the end of the rotating base 15. A first motor 31 is installed on the outside of the frame 1, and the output end of the first motor 31 is connected to the mounting shaft 14. An internal gear ring 21, coaxial with the mounting shaft 14, is installed on the inner wall of the frame 1. A drive shaft 22 is installed through the inside of the frame 1. A rotating tooth 23, which meshes with the internal gear ring 21, is installed at the end of the drive shaft 22. A worm gear 24 is fitted in the middle of the drive shaft 22. A worm wheel 25 is installed at the end of the rotating shaft 16 inside the rotating base 15, and the worm wheel 25 meshes with the worm gear 24. A motor 26 is installed on the top side of the rotating box 17. A drive tooth 27 is installed at the output end of the motor 26 inside the rotating box 17. A rotating tooth 27 is installed in the middle of the tube sheet 20. A driven tooth 28 is installed on the tube 18, and a driving tooth 27 meshes with the driven tooth 28. Slide grooves 34 are provided on both sides of the wheel frame 8, and wheel grooves 35 are provided on both sides of the slide grooves 34. A roller shaft 36 is installed through the center of the first measuring roller 10 and the second measuring roller 11. Roller seats 37 are installed at both ends of the roller shaft 36 within the slide grooves 34, and bearings 38 that roll along the wheel grooves 35 are installed on both sides of the roller seats 37. The device is used in conjunction with a wood pulp black card stacking and feeding machine. The wood pulp black cards are stacked and placed on the stacking and feeding machine. At this time, the platform of the stacking and feeding machine moves up until the wood pulp black cards contact the suction cup 19. At this time, the suction cup 19 generates negative pressure under the action of the air pump to adsorb the wood pulp black cards. The first motor 31 drives the mounting shaft 14 and the rotating seat 15 to rotate 18 times. 0°, and during the rotation, the rotating tooth 23 moves and rotates along the internal tooth ring 21. At this time, the rotating tooth 23 drives the transmission shaft 22 and the worm 24 to rotate. The rotating worm 24 drives the meshing worm wheel 25 to rotate, thereby realizing the flipping of the rotating box 17. The rotating box 17 and the wood pulp black card flip 360°. After the flipping, the detection camera 30 observes whether the end of the wood pulp black card is horizontal. When the end of the wood pulp black card is tilted, the motor 26 drives the active tooth 27 to rotate, which drives the meshing driven tooth 28 and the rotating tube 18 in the middle of the tube plate 20 to rotate. At this time, the tube plate 20 rotates around the rotating tube 18 in the middle, thereby rotating and adjusting the wood pulp black card adsorbed by the suction cup 19. After adjustment, the suction cup 19 releases the wood pulp black card, and the wood pulp black card falls onto the conveyor belt 4 to move.

[0032] The frame 1 is equipped with several belt rollers 3, which are connected by a conveyor belt 4. The frame 1 is also equipped with two conveyor rollers 5, and a support platform 6 is installed between the two conveyor rollers 5. The top sides of the conveyor rollers 5 and the support platform 6 are flush. A drive roller 7 is installed inside the frame 1 and above the support platform 6. A second motor 32 and a third motor 33 are installed on the side wall of the frame 1. The second motor 32 is connected to the belt roller 3 located at the end of the conveyor belt 4, and the output end of the third motor 33 is connected to the drive roller 7. The rotation of the belt roller 3 and the conveyor belt 4 is achieved by the second motor 32, and the rotation of the drive roller 7 is achieved by the third motor 33.

[0033] A support rod 9 is installed inside the frame 1. Several Z-shaped wheel frames 8 are evenly spaced on the support rod 9. First measuring rollers 10 and second measuring rollers 11 are respectively installed on both ends of the wheel frames 8, and the first measuring rollers 10 and second measuring rollers 11 are located above the conveyor roller 5. Two measuring seats 12 are installed inside the frame 1. Several displacement sensors 13 are evenly spaced on the bottom side of the measuring seats 12, and the displacement sensors 13 correspond to the first measuring rollers 10 and second measuring rollers 11 respectively. The distance between adjacent first measuring rollers 10 is the same as the width of the second measuring rollers 11, and the distance between adjacent second measuring rollers 11 is the same as the width of the first measuring rollers 10. As the wood pulp black card passes between the conveying roller 5 and the first measuring roller 10, the first measuring roller 10 moves within the slide groove 34 and wheel groove 35 via the roller seat 37 connected by the roller shaft 36 and the bearing 38, as the thickness of the wood pulp black card changes. The first measuring roller 10 moves up and down, and the distance change of the first measuring roller 10 is measured by the displacement sensor 13. When the wood pulp black card passes between the conveying roller 5 and the second measuring roller 11, the thickness of the part of the wood pulp black card that the first measuring roller 10 has not passed through is measured by the same measurement method. Through the cooperation of the first measuring roller 10 and the second measuring roller 11, the overall thickness measurement of the wood pulp black card is completed.

[0034] The first measuring roller 10 and the second measuring roller 11 are arranged in a complementary staggered pattern to ensure that the surface of the wood pulp black card is scanned without omission and to eliminate measurement blind spots. The two sets of rollers detect adjacent areas of the same card in stages. Combined with the displacement sensor 13 to collect data in real time, high-resolution mapping of the entire surface thickness is achieved. The rollers achieve flexible up and down displacement through the slide groove 34 and the bearing 38 to adapt to different thickness changes. The displacement sensor 13 directly detects the roller displacement, improving measurement sensitivity. The equidistant layout of the wheel frame 8 and the measuring seat 12 supports batch testing and is suitable for rapid adaptation of wood pulp black cards of different sizes.

[0035] The feeding mechanism 2 uses the rotating box 17 and suction cup 19 to adsorb the wood pulp black card. As the feeding mechanism 2 rotates as a whole, the wood pulp black card is moved from the stacking feeder to the device. At the same time, the rotating box 17 rotates 360° during the rotation. The rotating seat 15 rotates around the mounting shaft 14 and the rotating box 17 rotates around the rotating shaft 16 simultaneously. This achieves automatic feeding and ensures that both sides of the wood pulp black card can be measured during subsequent repeated measurements.

[0036] The detection camera 30 monitors the tilt status of the card in real time, and the motor 26 drives the tube plate 20 to rotate and adjust the angle to ensure that the wood pulp black card is placed horizontally and reduce measurement errors.

[0037] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A thickness detection device for finished wood pulp black cardboard, characterized in that, The utility model provides a kind of material loading mechanism, including rack (1) and material loading mechanism (2), the rack (1) is installed with material loading mechanism (2), the rack (1) is installed with several belt rollers (3), and several belt rollers (3) are driven connection by conveying belt (4), the rack (1) is installed with two conveying rollers (5), two the conveying roller (5) between installation has support platform (6), and conveying roller (5) and support platform (6) top side flush, the inside of rack (1) and above support platform (6) are installed with transmission roller (7), the rack (1) is installed with support rod (9), the support rod (9) is equidistant with several Z type wheel bracket (8), the first measuring roller (10) and second measuring roller (11) are respectively installed in wheel bracket (8) both ends both sides, and the first measuring roller (10) and second measuring roller (11) are above conveying roller (5), the rack (1) is installed with two measuring seats (12), the bottom of measuring seat (12) is equidistant with several displacement sensors (13), and displacement sensor (13) is respectively corresponding with the first measuring roller (10) and second measuring roller (11). The interval of adjacent first measuring roller (10) is same with the width of second measuring roller (11), and the interval of adjacent second measuring roller (11) is same with the width of first measuring roller (10).

2. The thickness detection device for wood pulp black card product according to claim 1, characterized in that, The material loading mechanism (2) includes rotating seat (15) rotatably installed in the rack (1), the rotating shaft (16) is rotatably installed in the middle of rotating seat (15), and the rotating shaft (16) is connected with the middle of rotating box (17).

3. The thickness detection device for wood pulp black card product according to claim 2, characterized in that, The bottom of rotating box (17) is rotatably installed with pipe plate (20), and several rotating pipes (18) are fixedly installed on the pipe plate (20) at equal intervals, the suction disc (19) is installed on the bottom of rotating pipe (18), the rotating pipe (18) in the middle of pipe plate (20) is rotatably connected with the middle of rotating box (17), the pipe plate (20) at both ends is located in the rotating groove (29) opened at both ends of rotating box (17), the rotating pipe (18) at the middle of pipe plate (20) is provided with a rotary joint at the top end, the rotating pipe (18) at both ends of pipe plate (20) is provided with a fixed joint at the top end, and the rotary joint and the fixed joint are connected with the air pump through the air pipe, and the bottom of rotating box (17) is provided with a detection camera (30).

4. The thickness detection device for wood pulp black card product according to claim 3, characterized in that, The end of rotating seat (15) is provided with a mounting shaft (14) rotatably connected with the rack (1), and the first motor (31) is installed on the outside of rack (1), and the output end of first motor (31) is connected with mounting shaft (14).

5. The thickness detection device for wood pulp black card product according to claim 4, characterized in that, The inner tooth ring (21) coaxial with mounting shaft (14) is installed on the inner wall of rack (1), and the transmission shaft (22) is installed through the inside of rack (1), and the rotating gear (23) meshing with inner tooth ring (21) is installed on the end of transmission shaft (22).

6. The thickness detection device for wood pulp black card product according to claim 5, characterized in that, The worm (24) is sleeved on the middle of transmission shaft (22), and the worm wheel (25) is installed on the end of rotating shaft (16) in rotating seat (15), and the worm wheel (25) is meshing with worm (24).

7. The thickness detection device for wood pulp black card product according to claim 6, characterized in that, The motor (26) is installed on the top side of the turnover box (17), the output end of the motor (26) is provided with a driving gear (27) installed in the turnover box (17), a driven gear (28) is installed on the rotating pipe (18) in the middle of the pipe plate (20), and the driving gear (27) is engaged with the driven gear (28).

8. The thickness detection device for wood pulp black card product according to claim 7, characterized in that, The second motor (32) and the third motor (33) are installed on the side wall of the rack (1), the second motor (32) is connected with the belt roller (3) at the end of the conveying belt (4), and the output end of the third motor (33) is connected with the transmission roller (7).

9. The thickness detection device for wood pulp black card product according to claim 8, characterized in that, The sliding groove (34) is provided on both sides of the wheel frame (8), the wheel groove (35) is provided on both sides of the sliding groove (34), the roller shaft (36) is penetrated and installed at the center of the first measuring roller (10) and the second measuring roller (11), the roller seat (37) is installed at both ends of the roller shaft (36) and located in the sliding groove (34), and the bearing (38) is installed on both sides of the roller seat (37) and rolls along the wheel groove (35).

10. The method of claim 9, wherein the thickness of the wood pulp black card product is measured by the thickness detection device. The specific operation steps of the working method are as follows: Step one: the device is used in cooperation with the wood pulp black card stacking feeder, the wood pulp black card stack is placed on the stacking feeder, at this time the material table of the stacking feeder moves until the wood pulp black card contacts the suction cup (19), at this time the suction cup (19) generates negative pressure under the action of the air pump to adsorb the wood pulp black card, the first motor (31) drives the installation shaft (14) and the rotating seat (15) to rotate 180°, and in the rotating process, the rotating gear (23) moves and rotates along the inner gear ring (21), at this time the rotating gear (23) drives the transmission shaft (22) and the worm (24) to rotate, the rotating worm (24) drives the meshing worm wheel (25) to rotate, thereby realizing the overturning of the turnover box (17), the turnover box (17) and the wood pulp black card overturn 360°, and after overturning, whether the end of the wood pulp black card is horizontal is observed by the detection camera (30), when the end of the wood pulp black card is inclined, the driving gear (27) is driven to rotate by the motor (26), the driven gear (28) engaged with the driving gear (27) and the rotating pipe (18) in the middle of the pipe plate (20) are driven to rotate, at this time the pipe plate (20) rotates around the rotating pipe (18) in the middle as the center, thereby rotating and adjusting the wood pulp black card adsorbed by the suction cup (19), after adjustment, the suction cup (19) releases the wood pulp black card, and the wood pulp black card falls on the conveying belt (4) and moves; Step two: the wood pulp black card passes between the conveying roller (5) and the first measuring roller (10), as the thickness of the wood pulp black card changes, the first measuring roller (10) moves up and down through the roller seat (37) connected by the roller shaft (36) through the bearing (38) in the sliding groove (34) and the wheel groove (35), the displacement sensor (13) measures the change in the distance of the first measuring roller (10), when the wood pulp black card passes between the conveying roller (5) and the second measuring roller (11), the same measurement method is used to measure the thickness of the part of the wood pulp black card that has passed through the first measuring roller (10), through the cooperation of the first measuring roller (10) and the second measuring roller (11), the overall thickness measurement of the wood pulp black card is completed.

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