Automatic adjusting device for position of paste baffle

Abstract

The invention relates to the technical field of corrugated board production equipment, in particular to an automatic paste baffle position adjusting device which comprises a rack, a pressure roller, an upper corrugated roller and a lower corrugated roller are sequentially arranged in the rack from top to bottom, an upper paste roller and a paste scraping roller are further rotationally arranged in the rack, the upper paste roller is located on one side of the upper corrugated roller, and the lower paste roller is located on one side of the lower corrugated roller. The paste scraping roller is located on the side, away from the upper corrugated roller, of the paste feeding roller, a paste feeding groove is formed in the portion, below the paste feeding roller, in the rack, a mounting rod is arranged on the portion, on one side of the paste scraping roller, in the rack, two movable seats are arranged on the mounting rod in a spaced mode, and a paste baffle is arranged on each movable seat. A position adjusting mechanism used for adjusting the positions of the two paste blocking plates is arranged in the rack, a light curtain detection assembly used for detecting the position of the corrugated paper core is further arranged in the rack, and the position adjusting mechanism is electrically connected with the light curtain detection assembly. According to the application, the self-adaptive adjustment of the position of the paste baffle plate can be realized, so that the coating effect of paste on a corrugated paper core can be improved, and the forming effect of a corrugated paper board can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated board production equipment, in particular to an automatic adjustment device for the position of a paste-blocking plate. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which consists of at least one layer of corrugated paper core and one layer of face paper. It has high mechanical strength and can withstand collisions and falls during transportation. The existing corrugated cardboard production process usually includes raw material preparation, pulp preparation, corrugated paper core forming, face paper bonding, waxing treatment, cutting adjustment and subsequent treatment. During the corrugated paper core forming and face paper bonding process, a rolling device is required for processing.

[0003] The existing rolling device usually includes a frame, and the frame is provided with a pressure roller, an upper corrugating roller and a lower corrugating roller from top to bottom in sequence. There is a gap between the pressure roller and the upper corrugating roller, and the upper corrugating roller and the lower corrugating roller are matched and meshed. The lower corrugating roller is an active roller, and a gear is installed at the shaft end. The motor drives the lower corrugating roller to rotate through a reduction device, and the upper corrugating roller is a driven roller. The upper corrugating roller and the lower corrugating roller mesh with each other to roll and roll the base paper into a wavy corrugated paper core. The frame is also provided with a paste plate, a paste roller, a paste scraping roller and two paste blocking plates. In the production process of corrugated board, the distance between the two paste blocking plates should be consistent with the width of the corrugated paper core. The spacing between the two paste blocking plates determines the paste width of the paste roller, and the gap between the paste scraping roller and the paste roller determines the paste thickness of the paste roller.

[0004] In actual production, the corrugated paper core may deviate to the left or right, but the position between the two paste-blocking plates is fixed, which will cause the position between the two paste-blocking plates to be misaligned with the position of the corrugated paper core, and then cause the paste to be unable to be applied to some areas of the corrugated paper core, affecting the pasting effect of the corrugated paper core and affecting the forming quality of the corrugated board. Summary of the invention

[0005] In order to achieve automatic adaptive adjustment of the position of the paste stopper plate, thereby improving the coating effect of the paste on the corrugated paper core, and further ensuring the forming effect of the corrugated paperboard, the present application provides an automatic adjustment device for the position of the paste stopper plate.

[0006] The present application provides a device for automatically adjusting the position of a paste blocking plate, which adopts the following technical solution: A device for automatically adjusting the position of a paste blocking plate comprises a frame, wherein a pressure roller, an upper corrugated roller and a lower corrugated roller are sequentially arranged in the frame from top to bottom, an upper gluing roller and a paste scraping roller are also rotatably arranged in the frame, the upper gluing roller is located on one side of the upper corrugated roller, and the paste scraping roller is located on the side of the upper gluing roller away from the upper corrugated roller, an upper gluing groove is arranged in the frame below the upper gluing roller, a mounting rod is arranged in the frame on one side of the paste scraping roller, two movable seats are arranged on the mounting rod at intervals, each of the movable seats is provided with a paste blocking plate, a position adjustment mechanism for adjusting the positions of the two paste blocking plates is arranged in the frame, a light curtain detection component for detecting the position of the corrugated paper core is also arranged in the frame, and the position adjustment mechanism is electrically connected to the light curtain detection component.

[0007] By adopting the above technical scheme, the light curtain detection component is used to help detect the position of the corrugated paper core, and the position adjustment mechanism is used to help adjust the positions of the two paste-blocking plates according to the detection results of the light curtain detection component, thereby helping to make the positions of the two paste-blocking plates adaptively adjusted according to the position of the corrugated paper core, thereby helping to improve the coating effect of the glue on the corrugated paper core, and helping to improve the preparation and forming effect of the corrugated paperboard.

[0008] In a specific feasible implementation scheme, the position adjustment mechanism includes a driving motor arranged on the outer wall of the frame, a bidirectional screw is rotatably arranged inside the frame, and one end of the bidirectional screw is connected to the output end of the driving motor, and two groups of transmission components for driving the movable seat to move are arranged on the bidirectional screw, and the thread rotation directions of the two groups of transmission components at the positions on the bidirectional screw are opposite.

[0009] By adopting the above technical scheme, a driving motor is used to help drive the bidirectional screw to rotate, and two sets of transmission components are used to help drive the two movable seats to move synchronously while the bidirectional screw rotates, which helps to adjust the positions of the two paste-blocking plates according to the detection results of the light curtain detection component, thereby helping to make the positions of the two paste-blocking plates adaptively adjusted according to the position of the corrugated paper core, thereby helping to improve the coating effect of the glue on the corrugated paper core, and helping to improve the preparation and forming effect of the corrugated board.

[0010] In a specific feasible implementation scheme, the transmission assembly includes a threaded sleeve, an end plate and an insertion rod, the threaded sleeve is threadedly sleeved on the bidirectional screw, the end plate is arranged at the axial end of the threaded sleeve, a slot is arranged on the circumferential outer wall of the threaded sleeve, the slot is arranged in a spiral shape, the insertion rod is arranged on the movable seat, and the end of the insertion rod away from the movable seat is inserted into the slot, a locking ring is arranged on the end plate, and a plurality of locking mechanisms are arranged in the locking ring for locking the locking ring and the bidirectional screw.

[0011] By adopting the above technical scheme, the locking mechanism is used to help lock the locking ring and the bidirectional screw, thereby helping to keep the relative positions of the threaded sleeve and the bidirectional screw unchanged, thereby helping the bidirectional screw to drive the threaded sleeve to rotate synchronously while rotating, helping the inserted rod to slide in the slot, thereby helping to drive the two movable seats and the two paste-blocking plates to move synchronously, and then helping to adaptively adjust the positions of the two paste-blocking plates according to the position of the corrugated paper core, thereby improving the coating effect of the glue on the corrugated paper core and improving the preparation and forming effect of the corrugated board.

[0012] In a specific possible implementation scheme, the locking mechanism includes a slide rail arranged inside a locking ring, a slide seat is arranged on the slide rail, a locking clamp is arranged on the slide seat, and a driving component for driving the slide seat to slide on the slide rail is also arranged inside the locking ring.

[0013] By adopting the above technical scheme, the driving assembly is used to help drive the slide seat to slide on the slide rail, thereby helping to drive multiple locking clamps to clamp and lock the bidirectional screw, helping to keep the relative positions of the threaded sleeve and the bidirectional screw unchanged, thereby helping to make the bidirectional screw drive the threaded sleeve to rotate synchronously while rotating, helping to make the inserted rod slide in the slot, thereby helping to drive the two movable seats and the two paste-blocking plates to move synchronously, and thereby helping to make the positions of the two paste-blocking plates adaptively adjusted according to the position of the corrugated paper core, thereby improving the coating effect of the glue on the corrugated paper core and improving the preparation and forming effect of the corrugated board.

[0014] In a specific possible implementation scheme, the driving assembly includes an electric push rod, a first special-shaped plate, a second special-shaped plate and a connecting seat, the electric push rod is arranged in the locking ring, the first special-shaped plate is connected to the output end of the electric push rod, the second special-shaped plate is rotatably arranged in the locking ring, the connecting seat is arranged on the side wall of the sliding seat, one end of the second special-shaped plate is movably connected to the first special-shaped plate, and one end of the second special-shaped plate away from the first special-shaped plate is movably connected to the connecting seat, and a guiding component for guiding the moving trajectory of the first special-shaped plate is also arranged in the locking ring.

[0015] By adopting the above technical solution, the electric push rod helps to drive the first special-shaped plate to move, the guiding component helps to guide the movement trajectory of the first special-shaped plate, and the first special-shaped plate helps to drive the second special-shaped plate to move, thereby helping to drive the connecting seat and the sliding seat to move synchronously, and then helps to drive multiple locking clamps to clamp and lock the bidirectional screw, which helps to keep the relative positions of the threaded sleeve and the bidirectional screw unchanged.

[0016] In a specific possible implementation scheme, the guiding member includes a fixing ring and a clamping slider, the fixing ring is arranged inside the locking ring, a movable track is arranged on the circumferential outer wall of the fixing ring, the clamping slider is fixedly connected to the first special-shaped plate, and the clamping slider is clamped inside the movable track.

[0017] By adopting the above technical solution, the use of the clamping slider in conjunction with the movable track helps to guide the movable track of the first special-shaped plate, thereby helping the first special-shaped plate to move along a fixed track, thereby helping to improve the effect of the first special-shaped plate driving the second special-shaped plate to move.

[0018] In a specific possible implementation scheme, a first waist-shaped hole is provided through the first special-shaped plate, a second waist-shaped hole is provided on the second special-shaped plate, a first plug is provided at one end of the second special-shaped plate close to the first special-shaped plate, and the first plug is inserted into the first waist-shaped hole, a second plug is provided in the connecting seat, and the second plug is inserted into the second waist-shaped hole.

[0019] By adopting the above technical solution, the arrangement of the first waist-shaped hole and the second waist-shaped hole helps to improve the flexibility of the second special-shaped plate during movement, thereby helping to ensure that the second special-shaped plate drives the connecting seat and the sliding seat to move.

[0020] In a specific possible implementation manner, a flexible splint is provided at one end of the locking splint close to the bidirectional screw, and the flexible splint is arranged in an arc shape.

[0021] By adopting the above technical solution, the use of a flexible splint helps to improve the clamping and locking effect of the bidirectional screw, thereby helping to further ensure the consistency of the relative positions of the threaded sleeve and the bidirectional screw.

[0022] In a specific feasible implementation scheme, an anti-rotation slot is provided on the mounting rod, and the anti-rotation slot is arranged along the axial direction of the mounting rod. An anti-rotation plug block is provided on the movable seat, and the anti-rotation plug block is inserted in the anti-rotation slot.

[0023] By adopting the above technical solution, inserting the anti-rotation plug into the anti-rotation slot helps prevent the movable seat from rotating on the mounting rod, thereby helping to ensure the accuracy of the moving position of the paste blocking plate.

[0024] In a specific possible implementation scheme, the light curtain detection assembly includes a transmitter and a receiver, the transmitter and the receiver are arranged in the rack at intervals, and the transmitter is used to emit multiple parallel light beams, and the receiver is used to receive the light beams.

[0025] By adopting the above technical solution, the transmitter is used to emit multiple parallel light beams, and the receiver is used to receive the light beams, thereby facilitating the detection of the position of the corrugated paper core.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. In the present application, a light curtain detection component and a position adjustment mechanism are provided. The light curtain detection component helps to detect the position of the corrugated paper core, and the position adjustment mechanism helps to adjust the positions of the two paste-blocking plates according to the detection results of the light curtain detection component, thereby helping to make the positions of the two paste-blocking plates adaptively adjusted according to the position of the corrugated paper core, thereby helping to improve the coating effect of the paste on the corrugated paper core, and helping to improve the preparation and molding effect of the corrugated paperboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram showing the specific structure of the position adjustment mechanism.

[0029] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0030] Figure 4 It is a schematic diagram showing the specific structure of the drive component.

[0031] Figure 5 It is a schematic diagram showing the specific structure of the guide component.

[0032] Figure 6 It is a schematic diagram showing the connection relationship between the first special-shaped plate, the second special-shaped plate and the connecting seat.

[0033] Figure 7 yes Figure 1 Enlarged view of point B in the middle.

[0034] Explanation of reference numerals: 1, frame; 2, pressure roller; 3, upper corrugated roller; 4, lower corrugated roller; 5, upper paste roller; 6, paste scraping roller; 7, upper paste groove; 8, mounting rod; 9, movable seat; 10, paste blocking plate; 11, light curtain detection assembly; 111, transmitter; 112, receiver; 12, drive motor; 13, bidirectional screw; 14, transmission assembly; 141, threaded sleeve; 142, end plate; 143, plug rod; 15, slot; 16, locking ring; 17, slide rail; 18, slide seat; 19, locking Clamp; 20, drive assembly; 201, electric push rod; 202, first special-shaped plate; 203, second special-shaped plate; 204, connecting seat; 21, guide member; 211, fixing ring; 212, clamping slider; 22, movable track; 23, first waist-shaped hole; 24, second waist-shaped hole; 25, first plug column; 26, second plug column; 27, flexible clamp; 28, anti-rotation slot; 29, anti-rotation plug block; 30, mounting slot; 31, movable block; 32, drive cylinder; 33, guide rod; 34, guide slot. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings.

[0036] The present application discloses a device for automatically adjusting the position of a paste blocking plate. Figure 1 and Figure 2 , including a frame 1, inside which a pressure roller 2, an upper corrugating roller 3 and a lower corrugating roller 4 are rotatably installed in sequence from top to bottom, an upper gluing roller 5 is rotatably installed on one side of the upper corrugating roller 3 on the inner wall of the frame 1, a scraping glue roller 6 is rotatably installed on the side of the upper gluing roller 5 away from the upper corrugating roller 3 on the inner wall of the frame 1, an upper gluing groove 7 is fixedly installed on the inner wall of the frame 1, and the upper gluing groove 7 is located below the upper gluing roller 5 and the scraping glue roller 6.

[0037] Reference Figure 1 and Figure 2 A light curtain detection assembly 11 is arranged inside the frame 1 on the side of the upper corrugating roller 3 away from the upper gluing roller 5. The light curtain detection assembly 11 includes a transmitter 111 and a receiver 112. The transmitter 111 and the receiver 112 are fixedly mounted on the inner wall of the frame 1 and arranged at intervals in the vertical direction.

[0038] Reference Figure 1 and Figure 3A mounting rod 8 is fixed inside the frame 1 on the side of the paste scraping roller 6 away from the upper paste roller 5, and two movable seats 9 are installed on the mounting rod 8 at intervals. A plurality of anti-rotation slots 28 are opened on the circumference of the mounting rod 8, and the plurality of anti-rotation slots 28 are arranged along the axial direction of the mounting rod 8. A plurality of anti-rotation plugs 29 are integrally formed on each movable seat 9, and each anti-rotation plug 29 is slidably engaged in an anti-rotation slot 28. A paste blocking plate 10 is fixedly installed on each movable seat 9, and a position adjustment mechanism is arranged inside the frame 1 on the side of the mounting rod 8 away from the paste scraping roller 6.

[0039] Reference Figure 1 and Figure 3 The position adjustment mechanism includes a driving motor 12, which is fixedly mounted on the outer wall of the frame 1 and electrically connected to the receiver 112. A bidirectional screw 13 is rotatably mounted on the inner wall of the frame 1, and one end of the bidirectional screw 13 is coaxially fixedly connected to the output end of the driving motor 12. A set of transmission components 14 are provided on the two sections of the bidirectional screw 13 with opposite thread rotation directions. Each set of transmission components 14 includes a threaded sleeve 141, a plug rod 143 and two end plates 142. The threaded sleeve 141 is threadedly sleeved on the circumference of the bidirectional screw 13. Each end plate 142 is fixedly mounted on the axial end of the threaded sleeve 141. A slot 15 is opened on the circumferential outer wall of the threaded sleeve 141 along its own axial direction. The slot 15 is spirally arranged. The plug rod 143 is fixedly connected to the movable seat 9, and the end of the plug rod 143 away from the movable seat 9 is inserted into the slot 15.

[0040] Reference Figure 3 and Figure 4 A locking ring 16 is fixedly installed on each end plate 142. The locking ring 16 is hollow inside and has multiple locking mechanisms inside. Each locking mechanism includes a slide rail 17. The slide rail 17 is fixedly installed on the inner wall of the locking ring 16. A slide seat 18 is slidably installed on the slide rail 17. A locking clamp 19 is fixedly installed on the slide seat 18. An arc-shaped flexible clamp 27 is fixedly connected to one end of the locking clamp 19 close to the bidirectional screw 13.

[0041] Reference Figure 4 and Figure 5A driving assembly 20 is arranged inside the locking ring 16, and the driving assembly 20 includes an electric push rod 201, a first special-shaped plate 202, a second special-shaped plate 203 and a connecting seat 204. The electric push rod 201 is fixedly installed on the inner wall of the locking ring 16, and the first special-shaped plate 202 is fixedly connected to the output end of the electric push rod 201. A guiding member 21 is arranged inside the locking ring 16, and the guiding member 21 includes a fixed ring 211 and a clamping slider 212. The fixed ring 211 is fixedly installed in the locking ring 16, and a movable track 22 is opened on the circumferential outer wall of the fixed ring 211. The clamping slider 212 is integrally formed with the first special-shaped plate 202, and the clamping slider 212 is slidably clamped in the movable track 22.

[0042] Reference Figure 4 and Figure 6 The second special-shaped plate 203 is rotatably mounted on the inner wall of the locking ring 16, and the connecting seat 204 is fixedly mounted on the side wall of the sliding seat 18. A first waist-shaped hole 23 is penetrated through the first special-shaped plate 202, and a second waist-shaped hole 24 is penetrated through the second special-shaped plate 203. The end of the second special-shaped plate 203 close to the first special-shaped plate 202 is fixedly connected with a first plug post 25, and the first plug post 25 is inserted into the first waist-shaped hole 23. A second plug post 26 is fixedly mounted in the connecting seat 204, and the second plug post 26 is inserted into the second waist-shaped hole 24.

[0043] Reference Figure 1 and Figure 2 In the process of preparing corrugated board, when the corrugated paper core passes through the upper corrugated roller 3 and the lower corrugated roller 4, the transmitter 111 emits multiple parallel light beams. After the multiple parallel light beams pass through the corrugated paper core, the receiver 112 receives and analyzes the unblocked light beams, thereby detecting the position of the corrugated paper core.

[0044] Reference Figure 1 and Figure 3 When the positions of the two paste-blocking plates 10 are offset from the position of the corrugated paper core, the receiver 112 transmits a signal to the drive motor 12, and the drive motor 12 runs, driving the bidirectional screw 13 to rotate, and the two threaded sleeves 141 rotate synchronously with the bidirectional screw 13, so that the insertion rod 143 slides relatively in the slot 15, and then drives the two paste-blocking plates 10 to move synchronously in one direction through the two movable seats 9, which helps to make the positions of the two paste-blocking plates 10 adaptively adjusted according to the position of the corrugated paper core, thereby improving the coating effect of the paste on the corrugated paper core and the preparation and forming effect of the corrugated paperboard.

[0045] Reference Figure 5 and Figure 6Before the bidirectional screw 13 rotates, the output end of the electric push rod 201 extends out, driving the first special-shaped plate 202 to move. At the same time, the clamping slider 212 slides along the movable track 22, so that the first special-shaped plate 202 moves along a fixed track; when the first special-shaped plate 202 moves, the first plug column 25 moves relatively in the first waist-shaped hole 23, thereby driving the second special-shaped plate 203 to move; when the second special-shaped plate 203 moves, the second plug column 26 moves relatively in the second waist-shaped hole 24, thereby driving the connecting seat 204 to move, and then the slide seat 18 slides on the slide rail 17, which helps to drive the multiple locking clamps 19 to move toward the bidirectional screw 13 until the multiple flexible clamps 27 clamp and lock the bidirectional screw 13, so that the relative positions of the threaded sleeve 141 and the bidirectional screw 13 remain unchanged.

[0046] Reference Figure 1 and Figure 7 The frame 1 has mounting grooves 30 on its two opposite side walls, each of which has a movable block 31 movably mounted therein, two driving cylinders 32 fixedly mounted on the frame 1, each of which has an output end fixedly connected to the movable block 31, a guide rod 33 mounted on the two movable blocks 31, and a plurality of guide grooves 34 arranged at intervals are disposed on the circumference of the end plate 142.

[0047] Reference Figure 5 and Figure 6 When the width of the corrugated paper core changes, the spacing between the two paste-blocking plates 10 needs to be adjusted, and the output end of the electric push rod 201 contracts, driving the connecting seat 204 and the sliding seat 18 to move in the opposite direction through the first special-shaped plate 202 and the second special-shaped plate 203, thereby driving the multiple locking clamps 19 to move in the direction away from the bidirectional screw 13, thereby releasing the locking connection between the threaded sleeve 141 and the bidirectional screw 13, so that the threaded sleeve 141 can move along the axial direction of the bidirectional worm.

[0048] Reference Figure 1 and Figure 7 , the driving cylinder 32 is started, driving the movable block 31 to slide in the installation groove 30, so that the guide rod 33 is clamped into the guide groove 34, thereby restricting the rotation of the end plate 142 and the threaded sleeve 141, so that the threaded sleeve 141 can only move along the axial direction of the bidirectional screw 13, thereby helping to drive the movable seat 9 and the paste baffle plate 10 to move through the insertion rod 143, and then helping to adjust the distance between the two paste baffle plates 10.

[0049] The implementation principle of the embodiment of the present application is: in the preparation process of corrugated cardboard, when the corrugated paper core passes through the upper corrugated roller 3 and the lower corrugated roller 4, the transmitter 111 emits multiple parallel light beams. After the multiple parallel light beams pass through the corrugated paper core, the receiver 112 receives and analyzes the unblocked light beams, thereby detecting the position of the corrugated paper core.

[0050] When the positions of the two paste-blocking plates 10 are offset from the position of the corrugated paper core, the receiver 112 transmits a signal to the drive motor 12, and the drive motor 12 runs, driving the bidirectional screw 13 to rotate, and the two threaded sleeves 141 rotate synchronously with the bidirectional screw 13, so that the insertion rod 143 slides relatively in the slot 15, and then drives the two paste-blocking plates 10 to move synchronously in the same direction through the two movable seats 9, which helps to make the positions of the two paste-blocking plates 10 adaptively adjusted according to the position of the corrugated paper core, thereby improving the coating effect of the paste on the corrugated paper core and the preparation and forming effect of the corrugated paperboard.

[0051] Before the bidirectional screw 13 rotates, the output end of the electric push rod 201 extends out, driving the first special-shaped plate 202 to move. At the same time, the clamping slider 212 slides along the movable track 22, so that the first special-shaped plate 202 moves along a fixed track; when the first special-shaped plate 202 moves, the first plug column 25 moves relative to the first waist-shaped hole 23, thereby driving the second special-shaped plate 203 to move; when the second special-shaped plate 203 moves, the second plug column 26 moves relative to the second waist-shaped hole 24, thereby driving the connecting seat 204 to move, and then the slide seat 18 slides on the slide rail 17, which helps to drive the multiple locking clamps 19 to move toward the bidirectional screw 13, until the multiple flexible clamps 27 clamp and lock the bidirectional screw 13, so that the relative positions of the threaded sleeve 141 and the bidirectional screw 13 remain unchanged.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for automatically adjusting the position of a paste blocking plate, characterized in that: The invention comprises a frame (1), wherein a pressure roller (2), an upper corrugating roller (3) and a lower corrugating roller (4) are arranged in sequence from top to bottom in the frame (1), and an upper gluing roller (5) and a gluing scraping roller (6) are also rotatably arranged in the frame (1), wherein the upper gluing roller (5) is located on one side of the upper corrugating roller (3), and the gluing scraping roller (6) is located on the side of the upper gluing roller (5) away from the upper corrugating roller (3), and an upper gluing groove (7) is arranged below the upper gluing roller (5) in the frame (1), and a gluing roller (7) is arranged in the frame (1) A mounting rod (8) is arranged on one side of the paste scraping roller (6), two movable seats (9) are arranged on the mounting rod (8) at intervals, each movable seat (9) is provided with a paste blocking plate (10), a position adjustment mechanism for adjusting the positions of the two paste blocking plates (10) is arranged in the frame (1), a light curtain detection component (11) for detecting the position of the corrugated paper core is also arranged in the frame (1), and the position adjustment mechanism is electrically connected to the light curtain detection component (11).

2. The automatic adjustment device for the position of the paste blocking plate according to claim 1 is characterized in that: The position adjustment mechanism comprises a driving motor (12) arranged on the outer wall of the frame (1); a bidirectional screw (13) is rotatably arranged inside the frame (1), and one end of the bidirectional screw (13) is connected to the output end of the driving motor (12); two groups of transmission components (14) for driving the movable seat (9) to move are arranged on the bidirectional screw (13), and the thread rotation directions of the two groups of transmission components (14) located on the bidirectional screw (13) are opposite.

3. The automatic adjustment device for the position of the paste blocking plate according to claim 2 is characterized in that: The transmission assembly (14) comprises a threaded sleeve (141), an end plate (142) and an insertion rod (143); the threaded sleeve (141) is threadedly sleeved on the bidirectional screw (13); the end plate (142) is arranged at the axial end of the threaded sleeve (141); a slot (15) is arranged on the circumferential outer wall of the threaded sleeve (141); the slot (15) is arranged in a spiral shape; the insertion rod (143) is arranged on the movable seat (9), and the end of the insertion rod (143) away from the movable seat (9) is inserted into the inside of the slot (15); a locking ring (16) is arranged on the end plate (142); and a plurality of locking mechanisms are arranged in the locking ring (16) for locking the locking ring (16) and the bidirectional screw (13) in connection.

4. The automatic adjustment device for the position of the paste blocking plate according to claim 3 is characterized in that: The locking mechanism comprises a slide rail (17) arranged inside a locking ring (16), a slide seat (18) being arranged on the slide rail (17), a locking clamping plate (19) being arranged on the slide seat (18), and a driving component (20) for driving the slide seat (18) to slide on the slide rail (17) being also arranged inside the locking ring (16).

5. The automatic adjustment device for the position of the paste blocking plate according to claim 4 is characterized in that: The driving assembly (20) comprises an electric push rod (201), a first special-shaped plate (202), a second special-shaped plate (203) and a connecting seat (204); the electric push rod (201) is arranged in the locking ring (16); the first special-shaped plate (202) is connected to the output end of the electric push rod (201); the second special-shaped plate (203) is rotatably arranged in the locking ring (16); the connecting seat (204) is arranged on the side wall of the sliding seat (18); one end of the second special-shaped plate (203) is movably connected to the first special-shaped plate (202); one end of the second special-shaped plate (203) away from the first special-shaped plate (202) is movably connected to the connecting seat (204); and a guiding component (21) for guiding the moving trajectory of the first special-shaped plate (202) is also arranged in the locking ring (16).

6. The automatic adjustment device for the position of the paste blocking plate according to claim 5, characterized in that: The guide member (21) comprises a fixed ring (211) and a clamping slide block (212); the fixed ring (211) is arranged inside the locking ring (16); a movable track (22) is arranged on the circumferential outer wall of the fixed ring (211); the clamping slide block (212) is fixedly connected to the first special-shaped plate (202), and the clamping slide block (212) is clamped inside the movable track (22).

7. The automatic position adjustment device for the paste blocking plate according to claim 5, characterized in that: The first special-shaped plate (202) is provided with a first waist-shaped hole (23), the second special-shaped plate (203) is provided with a second waist-shaped hole (24), the second special-shaped plate (203) is provided with a first plug post (25) at one end close to the first special-shaped plate (202), and the first plug post (25) is inserted into the first waist-shaped hole (23), the connecting seat (204) is provided with a second plug post (26), and the second plug post (26) is inserted into the second waist-shaped hole (24).

8. The automatic position adjustment device for the paste blocking plate according to claim 4 is characterized in that: A flexible splint (27) is arranged at one end of the locking splint (19) close to the bidirectional screw (13), and the flexible splint (27) is arranged in an arc shape.

9. The automatic adjustment device for the position of the paste blocking plate according to claim 1, characterized in that: The mounting rod (8) is provided with an anti-rotation slot (28), and the anti-rotation slot (28) is arranged along the axial direction of the mounting rod (8). The movable seat (9) is provided with an anti-rotation plug-in block (29), and the anti-rotation plug-in block (29) is inserted into the anti-rotation slot (28).

10. The automatic position adjustment device for the paste blocking plate according to claim 1, characterized in that: The light curtain detection component (11) comprises a transmitter (111) and a receiver (112), wherein the transmitter (111) and the receiver (112) are arranged in the frame (1) at intervals, and the transmitter (111) is used to emit a plurality of parallel light beams, and the receiver (112) is used to receive the light beams.

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