A paper product production carrying device

Abstract

The present application relates to paper product production technical field, especially paper product production handling device. Including for walking self-propelled chassis, the top of self-propelled chassis is rotatably connected with workbench, the workbench front and rear ends are symmetrically provided with two groups of first fixing units for fixing paper roll shaft center;The workbench top center is fixedly installed with the supporting plate, the supporting plate top two sides are symmetrically provided with two groups of lifting components, the lifting component includes several groups of supporting block mechanisms for lifting paper roll from the bottom and preventing inclination. The present application limits the paper roll from the bottom, side and shaft center, prevents displacement due to external force. Automatic picking, transportation and all-around fixation are integrated, which enriches the functionality of the device.

Description

Technical Field

[0001] This invention belongs to the field of paper product manufacturing technology, and specifically relates to a handling device for paper product manufacturing. Background Technology

[0002] In the production process of paper products, the pulp is first solidified into a semi-finished paper product, which is then wound onto a shaft to form a semi-finished paper roll for subsequent cutting and processing. Since paper rolls are usually quite heavy, they typically require specialized handling equipment for transportation between processes.

[0003] A search revealed that the cited publication number is CN207404545U, published on May 25, 2018, entitled "A Paper Roll Handling Device," comprising a lifting device, which includes a first driving device and a lifting platform connected to the driving end of the first driving device; a transition plate rotatably connected to one side of the lifting device, the angle between the transition plate and the lifting platform ranging from 90° to 180°; and a pushing device, which includes a support platform hinged to the other side of the lifting platform and a second driving device driving the support platform to rotate. When a paper roll is placed on the lifting platform, the transition plate limits the paper roll to prevent it from rolling forward. When the first driving device drives the lifting platform upward to a platform at a predetermined height, the transition plate rotates and overlaps with the platform. The second driving device drives the support platform to rotate towards the paper roll, and the support platform pushes the paper roll towards the transition plate and the platform, thus loading the paper roll onto the predetermined platform. It should also be noted that a certain number of paper rolls can be placed on the support platform. When the paper rolls move upward to a certain height, the support platform rotates, driving the paper rolls to roll towards the platform. The paper roll handling device of this utility model is easy to operate and has good safety when loading paper rolls, and can conveniently transport paper rolls to a predetermined position.

[0004] The above embodiments still have the following drawbacks:

[0005] It can only be fed manually and cannot fix the paper roll in all directions. When subjected to external force, the paper roll is very easy to shift, thus its functionality is limited. Summary of the Invention

[0006] To address the aforementioned problems, the present invention provides a handling device for paper product production, comprising a self-propelled chassis for movement, a worktable rotatably connected to the top of the self-propelled chassis, two sets of first fixing units for fixing the paper roll shaft center symmetrically arranged at the front and rear ends of the worktable; a pallet is fixedly installed at the center of the top of the worktable, and two sets of lifting components are symmetrically arranged on both sides of the top of the pallet, the lifting components including several sets of equally spaced support block mechanisms for lifting the paper roll from the bottom and preventing tilting;

[0007] The tray is symmetrically provided with two sets of second fixing units on both sides perpendicular to the first fixing unit. The second fixing units are used to lift the paper roll from the side and adjust the lifting range according to the length of the paper roll.

[0008] One of the second fixing units has a picking unit on the side away from the pallet, which is used to pick up the paper roll onto the pallet.

[0009] Furthermore, the self-propelled chassis includes a chassis body, a top cavity is provided in the chassis body, a balance block is provided at the center of the top cavity, and two sets of first electric slides are symmetrically arranged on the front and rear sides of the top cavity along the horizontal direction.

[0010] Furthermore, the two ends of the balance block are slidably connected to two sets of first electric slides respectively; an electronic level is fixedly installed on the outer wall of one end of the chassis body, and the electronic level is electrically connected to both sets of first electric slides.

[0011] Furthermore, the block support mechanism includes a block support body, the top of which has an arc slope with a fan-shaped annular structure in side view; a pressure sensor is embedded at the center of the top of the arc slope; a first electric push rod is fixedly installed at the bottom of the block support body in the vertical direction; the first electric push rod is electrically connected to the pressure sensor.

[0012] Furthermore, the first fixing unit includes a translation plate, which is slidably connected to the second slide groove. Two sets of upright plates are symmetrically arranged at the two ends of the translation plate. A set of second electric push rods is fixedly installed on each set of upright plates in the horizontal direction. The base of the second electric push rod is fixedly installed on the main body of the second fixing unit on the same side.

[0013] Furthermore, a triangular bracket is fixedly installed at the center of the top of the translation plate, and two sets of inclined abutment rods are installed on both sides of the triangular bracket, one near the plate and the other far away from the plate; a shaft fixing mechanism is fixedly installed on the top of the triangular bracket.

[0014] Furthermore, the second fixing unit includes a side working box, the top of which has a third sliding groove along its own length direction, a third electric push rod vertically arranged inside the side working box, a linear guide rail horizontally arranged on the top of the third electric push rod along the length direction of the side working box, an adjusting plate on the side of the linear guide rail away from the third electric push rod, and several sets of adjusting slots arranged at equal intervals along the horizontal direction on the adjusting plate, the middle set of adjusting slots being vertically arranged, and the adjusting slots extending to both sides being inclined, with the inclination angle increasing progressively.

[0015] Furthermore, a horizontal sliding rod is horizontally arranged on the side of the adjusting plate away from the linear guide rail. Several sets of slip rings, the same number as the adjusting groove, are slidably connected on the sliding rod. Each set of slip rings is fixedly installed with a set of limiting guide rails in the vertical direction on the side of the adjusting plate.

[0016] Furthermore, each set of sliding rods is slidably connected to a set of adjusting rods, and the two ends of the adjusting rods are respectively slidably connected to the linear guide rail and a corresponding set of limiting guide rails; the top of each set of slip rings extends to the outside of the side working box through the third sliding groove, and a set of wrapping mechanism is fixedly installed thereon.

[0017] Furthermore, the handling unit includes a second hydraulic turntable, with a vertical pole fixedly installed on the top of the second hydraulic turntable, and a motor housing fixedly installed on the top of the vertical pole. The motor housing contains a servo motor. A set of turntables is rotatably connected to the outer walls on both sides of the motor housing, and the turntables are drivenly connected to the output ends of the servo motors. A triangular load-bearing arm is fixedly installed on the turntable, and the triangular load-bearing arm has a V-shaped structure. A load-bearing rod is horizontally arranged between the output ends of the two sets of triangular load-bearing arms, and two sets of fourth electric push rods are symmetrically arranged at both ends of the load-bearing rods. The output ends of the fourth electric push rods are equipped with pneumatic grippers.

[0018] The beneficial effects of this invention are:

[0019] 1. By setting up a handling unit, semi-finished paper rolls can be directly transported onto the pallet, supported from the bottom by a support block mechanism, and then lifted from the sides by two sets of second fixing units on both sides. Finally, the paper roll axis is fixed by two sets of first fixing units located at both ends of the self-propelled chassis, thus limiting the bottom, sides, and axis of the paper roll to prevent displacement due to external forces. This integrates automatic handling, transportation, and omnidirectional fixing, thereby enriching the functionality of the device.

[0020] 2. The linear guide rail is raised and lowered by the third electric push rod, adjusting the spacing between each set of adjusting rods, thereby adjusting the spacing of each set of wrapping mechanisms. At the same time, the paper roll will squeeze the two sets of side plates. In order to fit the paper roll surface, the side plates will rotate around the hinge point and torsion spring according to the curvature of the paper roll surface, ensuring the support of the paper roll. This allows the paper roll to receive support from the sides and below, in addition to the bottom. Regardless of the width and surface curvature of the paper roll, it can be fully supported from all positions by each set of center plates and side plates, thereby improving the compatibility of the device.

[0021] 3. The second hydraulic turntable drives the upright to rotate, causing the pneumatic grippers to rotate to the side away from the pallet. Then, the servo motor drives the turntable to rotate, causing the triangular load-bearing arm to lower the pneumatic grippers to clamp both ends of the paper roll shaft. The roll is then raised and rotated directly above the pallet, aligned with the two sets of shaft fixing mechanisms, lowered, and the two sets of pneumatic grippers are released, completing the transport operation. No manual handling or additional lifting equipment is required, achieving integrated handling and conveying operations, thus improving the automation level of the device.

[0022] 4. Activate the second electric push rod to move the first fixing unit horizontally, aligning the axis fixing mechanism with the axis of the paper roll. Then, the lifting unit transports the paper roll to directly above the pallet, aligning both ends of the paper roll's axis with the two unclosed annular structures on either side. The lifting unit then lowers the paper roll and closes the two sets of annular structures, thus limiting the position of the paper roll's axis. The circular array of protruding strips increases the friction between the annular structures and the paper roll's axis, preventing it from rolling and thus improving the fixation effect of the paper roll along the central axis.

[0023] 5. The top of the support block body is designed as a fan-shaped, arc-shaped slope, allowing the bottom of the paper roll to fit more closely to the support block body. This prevents the support block body from squeezing the paper roll in certain areas, thus avoiding marks that could affect the quality of the paper roll. When the paper roll tilts during transportation, the pressure on each set of pressure sensors changes accordingly. The pressure value of the pressure sensor closer to the tilted side increases, causing the first electric push rod of that set to lift the support block body upwards and push the paper roll back to its original position. This ensures that each set of support blocks remains in contact with the bottom of the paper roll, guaranteeing the balance of the paper roll during transportation.

[0024] 6. By automatically monitoring the balance of the device, when uneven force is applied to both sides due to handling paper rolls or external forces, the device can automatically adjust the position of the balance blocks to balance the weight on both sides in a timely manner, preventing the device from tilting. The device can always be quickly balanced without manual adjustment. Furthermore, the first electric slide has stepless motion, allowing the balance block position to be adjusted freely according to the magnitude of the force, thereby improving the safety of handling operations.

[0025] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a conveying device according to an embodiment of the present invention is shown.

[0028] Figure 2 A schematic diagram showing the positional relationship between the tray, the first fixing unit, and the second fixing unit according to an embodiment of the present invention is provided.

[0029] Figure 3 An exploded view of a self-propelled chassis according to an embodiment of the present invention is shown.

[0030] Figure 4 A cross-sectional schematic diagram of the chassis body according to an embodiment of the present invention is shown.

[0031] Figure 5 A schematic diagram of the structure of a tray according to an embodiment of the present invention is shown.

[0032] Figure 6 A schematic diagram of the support block structure according to an embodiment of the present invention is shown.

[0033] Figure 7 A bottom view schematic diagram of the support block structure according to an embodiment of the present invention is shown.

[0034] Figure 8 A schematic diagram of the structure of the first fixing unit according to an embodiment of the present invention is shown.

[0035] Figure 9 An exploded view of the shaft fixing mechanism according to an embodiment of the present invention is shown.

[0036] Figure 10 A schematic diagram of the structure of the second fixing unit according to an embodiment of the present invention is shown.

[0037] Figure 11 A rear cross-sectional schematic diagram of the second fixing unit according to an embodiment of the present invention is shown.

[0038] Figure 12 A schematic diagram showing the positional relationship between the adjusting plate and the horizontal slide bar according to an embodiment of the present invention is provided.

[0039] Figure 13 A schematic diagram of the packaging mechanism according to an embodiment of the present invention is shown.

[0040] Figure 14A schematic diagram of the structure of the handling unit according to an embodiment of the present invention is shown.

[0041] In the diagram: 100, self-propelled chassis; 110, chassis body; 120, top cavity; 130, first hydraulic turntable; 140, first electric slide; 150, counterweight; 160, first chute; 170, electronic level; 200, worktable; 210, second chute; 300, support plate; 310, support block mechanism; 311, support block body; 312, arc slope; 313, pressure sensor; 314, first electric push rod; 400, first fixing unit; 410, translation plate; 411, upright plate; 420, second electric push rod; 430, triangular bracket; 440, inclined abutment; 450, shaft fixing mechanism; 451, fixing plate; 452, convex... 453, Locking Block; 500, Second Fixing Unit; 510, Side Working Box; 511, Third Slide Rail; 520, Third Electric Push Rod; 530, Linear Guide Rail; 531, Adjusting Rod; 540, Adjusting Plate; 541, Adjusting Groove; 550, Horizontal Slide Rod; 560, Slip Ring; 570, Limiting Guide Rail; 580, Wrapping Mechanism; 581, Mounting Base; 582, Center Plate; 583, Side Plate; 584, Torsion Spring; 600, Lifting Unit; 610, Second Hydraulic Turntable; 620, Upright Pole; 630, Motor Box; 640, Turntable; 650, Triangular Load-Bearing Arm; 660, Load-Bearing Rod; 670, Fourth Electric Push Rod; 680, Pneumatic Gripper. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0043] This invention provides a conveying device for paper product manufacturing, exemplarily, such as... Figure 1 and Figure 2 As shown, the device includes a self-propelled chassis 100, with a worktable 200 rotatably connected to the top of the chassis 100. Two sets of second slide grooves 210 are symmetrically arranged at both ends of the worktable 200, with the central axes of the two sets of second slide grooves 210 coinciding. The self-propelled chassis 100 is used to move the device.

[0044] For example, a tray 300 is fixedly installed at the top center of the workbench 200, and the tray 300 is located between two sets of second slide grooves 210. The tray 300 is used to support the paper roll from the bottom and provide a limit in the bottom direction.

[0045] For example, a set of first fixing units 400 are slidably connected to each of the two sets of second slide grooves 210. The first fixing units 400 are used to fix the axis of the paper roll from both ends.

[0046] For example, the tray 300 is symmetrically provided with two sets of second fixing units 500 on both sides perpendicular to the first fixing unit 400. The second fixing units 500 are used to limit the paper roll from both sides.

[0047] For example, a transfer unit 600 is provided on the side of one group of the second fixing units 500 away from the pallet 300. The transfer unit 600 is used to transfer the paper roll onto the pallet 300.

[0048] For example, such as Figure 3 and Figure 4 As shown, the self-propelled chassis 100 includes a chassis body 110, which is preferably a tracked chassis. A first hydraulic turntable 130 is fixedly installed at the top center of the chassis body 110. The brand and model of the first hydraulic turntable 130 is SE-17. A top cavity 120 is formed inside the chassis body 110. A balance block 150 is set at the center of the top cavity 120. The balance block 150 is preferably a solid iron block. Two sets of first electric slides 140 are symmetrically arranged on the front and rear sides of the top cavity 120 along the horizontal direction. The two ends of the balance block 150 are slidably connected to the two sets of first electric slides 140 respectively. A first groove 160 is formed at the bottom of the top cavity 120 along its own width direction. The bottom of the balance block 150 is slidably connected to the first groove 160. An electronic level 170 is fixedly installed on the outer wall of one end of the chassis body 110. The electronic level 170 is electrically connected to both sets of first electric slides 140. The brand and model of the electronic level 170 is SXSPC-01.

[0049] When the handling unit 600 moves the paper roll, the weight of the paper roll causes a change in the force on both sides of the device, causing it to tilt towards the handling unit 600. When the tilt reaches a certain point, it is detected by the electronic level 170, which continuously monitors the overall balance of the device. The electronic level 170 then sends a working signal to the two sets of first electric slides 140, causing them to move the balance block 150 away from the handling unit 600 until the electronic level 170 reading returns to equilibrium. By automatically monitoring the device's balance, when uneven force is applied to both sides due to moving the paper roll or external forces, the balance block 150 can be automatically adjusted to balance the weight on both sides, preventing the device from tilting. The device can be quickly and consistently balanced without manual adjustment. Furthermore, the first electric slide 140 has stepless motion, allowing the balance block 150 to be adjusted freely according to the magnitude of the force, thereby improving the safety of the handling operation.

[0050] For example, such as Figure 5 , Figure 6 and Figure 7 As shown, the top of the pallet 300 has two sets of lifting components symmetrically arranged around its central axis along its length. Each lifting component includes several sets of equally spaced support block mechanisms 310. Each support block mechanism 310 includes a support block body 311, and the top of the support block body 311 has an arc-shaped slope 312 with a fan-shaped cross-section in side view. A pressure sensor 313 is embedded at the center of the top of the arc-shaped slope 312. A first electric push rod 314 is fixedly installed vertically at the bottom of the support block body 311. The first electric push rod 314 is electrically connected to the pressure sensor 313. The pressure sensor 313 is a HZC-T brand.

[0051] The top of the support block body 311 is designed as a fan-shaped annular arc slope 312, which allows the bottom of the paper roll to fit more closely to the support block body 311. This prevents the support block body 311 from causing localized compression of the paper roll, thus avoiding marks that could affect the quality of the paper roll. When the paper roll tilts during transportation, the pressure on each set of pressure sensors 313 changes accordingly. The pressure value of the pressure sensor 313 closer to the tilted side increases, which drives the first electric push rod 314 of that set to lift the support block body 311 and push the paper roll back to its original position. This ensures that each set of support block bodies 311 always fits closely to the bottom of the paper roll, guaranteeing the balance of the paper roll during transportation.

[0052] For example, such as Figure 8As shown, the first fixing unit 400 includes a translation plate 410, which is slidably connected to the second slide groove 210. Two sets of upright plates 411 are symmetrically arranged at the two ends of the translation plate 410. A set of second electric push rods 420 are fixedly installed on each set of upright plates 411 in the horizontal direction. The base of the second electric push rod 420 is fixedly installed on the main body of a set of second fixing units 500 on the same side.

[0053] For example, a triangular bracket 430 is fixedly installed at the top center of the translation plate 410, and two sets of inclined abutment rods 440 are installed on both sides of the triangular bracket 430, one near the support plate 300 and the other away. A shaft fixing mechanism 450 is fixedly installed on the top of the triangular bracket 430.

[0054] For example, such as Figure 9 As shown, the shaft fixing mechanism 450 includes two sets of fixing plates 451 with fan-shaped annular cross-sections at the ends. One end of each of the two sets of fixing plates 451 is hinged to the other, and the other end is provided with a set of locking blocks 453. The two sets of locking blocks 453 are interlocked. The two sets of fixing plates 451 together form a circular structure. Several sets of protruding strips 452 are distributed in a circular array on the inner wall of the circular structure.

[0055] First, based on the width of the paper roll, the second electric push rod 420 is activated to move the first fixing unit 400 horizontally, so that the axis fixing mechanism 450 can align with the axis of the paper roll. Then, the picking unit 600 transports the paper roll to directly above the pallet 300, aligning the two ends of the paper roll's axis with the two unclosed annular structures on both sides. The picking unit 600 then lowers the paper roll and closes the two sets of annular structures, thereby limiting the axis of the paper roll. Then, the friction between the annular structures and the axis of the paper roll is increased by the ring array of protrusions 452, preventing it from rolling and turning over, thereby improving the fixing effect of the paper roll in the central axis direction.

[0056] The support bracket for the ring structure is set as a triangular structure, and inclined abutment rods 440 are installed on both sides near and away from the support plate 300, so that the first fixing unit 400 as a whole can resist the weight in any direction, thereby improving the overall load-bearing capacity of the first fixing unit 400.

[0057] For example, such as Figure 10 , Figure 11 and Figure 12As shown, the second fixing unit 500 includes a side working box 510. The top of the side working box 510 is provided with a third sliding groove 511 along its own length direction. A third electric push rod 520 is vertically arranged inside the side working box 510. A linear guide rail 530 is horizontally arranged on the top of the third electric push rod 520 along the length direction of the side working box 510. An adjusting plate 540 is provided on the side of the linear guide rail 530 away from the third electric push rod 520. Several sets of adjusting grooves 541 are arranged at equal intervals along the horizontal direction on the adjusting plate 540. The set of adjusting grooves 541 located in the middle is vertically arranged. The sets of adjusting grooves 541 extending to both sides are inclined, and the inclination angles increase progressively.

[0058] For example, a horizontal slide bar 550 is provided on the side of the adjusting plate 540 away from the linear guide rail 530. Several sets of slip rings 560, the same number as the adjusting groove 541, are slidably connected on the horizontal slide bar 550. Each set of slip rings 560 is fixedly installed with a set of limiting guide rails 570 in the vertical direction on the side of the adjusting plate 540.

[0059] For example, each set of horizontal sliding rods 550 is slidably connected to a set of adjusting rods 531, the two ends of which are slidably connected to a linear guide rail 530 and a corresponding set of limiting guide rails 570, respectively. The top of each set of slip rings 560 extends to the outside of the side work box 510 through a third sliding groove 511, and a set of wrapping mechanisms 580 is fixedly installed thereon.

[0060] For example, such as Figure 13 As shown, the wrapping mechanism 580 includes a mounting base 581, which is inclined. A center plate 582 with a fan-shaped cross-section is fixedly installed at the center of the inclined surface of the top. A set of side plates 583 with a fan-shaped cross-section are respectively hinged to the upper and lower ends of the center plate 582. A set of torsion springs 584 are provided at the hinge points of the center plate 582 and the two sets of side plates 583.

[0061] First, adjust the spacing between each group of wrapping mechanisms 580 according to the width of the paper roll. When the paper roll is wide, first activate the third electric push rod 520 to drive the linear guide rail 530 to rise, and at the same time drive each group of adjusting rods 531 to rise. Since the middle group of adjusting grooves 541 is vertically set, the adjusting grooves 541 extending to both sides are all inclined, and the inclination angle increases progressively. This causes the spacing between adjacent groups to increase uniformly as each group of adjusting rods 531 rises. Also, because of the limiting guide rail 570, the rise of the adjusting rods 531 will only cause the spacing between each group of slip rings 560 to increase uniformly along the straight path of the horizontal slide bar 550, thereby causing each group of wrapping mechanisms 580 to spread out uniformly, thus adjusting the spacing between each group of wrapping mechanisms 580.

[0062] When the paper roll is placed on the tray 300, each set of center plates 582 adheres to the surface of the paper roll from the lower side, and the paper roll presses against the two sets of side plates 583. To also adhere to the surface of the paper roll, the side plates 583 rotate around the hinge point and torsion spring 584 according to the curvature of the paper roll surface, ensuring the support of the paper roll. When the paper roll is removed, the side plates 583 will return to their original position due to the elasticity of the torsion spring 584. This ensures that the paper roll receives support from the lower side in addition to the bottom, and that regardless of the width and surface curvature of the paper roll, it can be fully supported from all positions by each set of center plates 582 and side plates 583, thereby improving the compatibility of the device.

[0063] For example, such as Figure 14 As shown, the handling unit 600 includes a second hydraulic turntable 610. A vertical pole 620 is fixedly installed on the top of the second hydraulic turntable 610, and a motor housing 630 is fixedly installed on the top of the vertical pole 620. A servo motor is installed inside the motor housing 630. A set of turntables 640 are rotatably connected to the outer walls on both sides of the motor housing 630, and the turntables 640 are drivenly connected to the output end of the servo motor. A triangular load-bearing arm 650 is fixedly installed on the turntable 640. The triangular load-bearing arm 650 has a V-shaped structure, and a load-bearing beam is fixedly connected between the two sets of side walls. A load-bearing rod 660 is horizontally arranged between the output ends of the two sets of triangular load-bearing arms 650. Two sets of fourth electric push rods 670 are symmetrically arranged at both ends of the load-bearing rod 660, and a pneumatic gripper 680 is provided on the output end of the fourth electric push rod 670.

[0064] First, the distance between the two sets of pneumatic grippers 680 is adjusted according to the width of the paper roll by two sets of fourth electric push rods 670. Then, the second hydraulic turntable 610 drives the upright 620 to rotate, causing the pneumatic grippers 680 to rotate to the side away from the pallet 300. Then, the servo motor drives the turntable 640 to rotate, and the triangular load-bearing arm 650 drives the pneumatic grippers 680 to descend and clamp the two ends of the paper roll shaft. Then, it is raised and rotated to be directly above the pallet 300, then aligned with the two sets of shaft fixing mechanisms 450 and lowered, releasing the two sets of pneumatic grippers 680, completing the transportation work. No manual handling or additional lifting equipment is required, realizing integrated handling and conveying operations, thereby improving the automation level of the device.

[0065] The above embodiments have the following beneficial effects:

[0066] 1. By setting up the handling unit 600, the semi-finished paper roll can be directly transported onto the pallet 300, supported from the bottom by the support block mechanism 310, and then lifted from the sides by two sets of second fixing units 500 on both sides. Finally, the paper roll axis is fixed by two sets of first fixing units 400 located at both ends of the self-propelled chassis 100, thereby limiting the bottom, sides, and axis of the paper roll to prevent displacement due to external forces. This integrates automatic handling, transportation, and all-round fixing, thus enriching the functionality of the device.

[0067] 2. The third electric push rod 520 drives the linear guide rail 530 to rise and fall, adjusting the spacing between each set of adjusting rods 531, thereby adjusting the spacing of each set of wrapping mechanisms 580. At the same time, the paper roll will squeeze the two sets of side plates 583. In order to fit the paper roll surface, the side plates 583 will rotate around the hinge point and torsion spring 584 according to the curvature of the paper roll surface, ensuring the support of the paper roll. This allows the paper roll to receive support from the side and below, except for the bottom. Regardless of the width and surface curvature of the paper roll, it can be fully supported from all positions by each set of center plates 582 and side plates 583, thereby improving the compatibility of the device.

[0068] 3. The second hydraulic turntable 610 drives the upright 620 to rotate, causing the pneumatic gripper 680 to rotate to the side away from the pallet 300. Then, the servo motor drives the turntable 640 to rotate, causing the triangular load-bearing arm 650 to lower the pneumatic gripper 680 to clamp both ends of the paper roll shaft. It then rises and rotates to be directly above the pallet 300, aligns with the two sets of shaft fixing mechanisms 450, lowers, and releases the two sets of pneumatic grippers 680, completing the transport operation. No manual handling or additional lifting equipment is required, achieving integrated handling and conveying operations, thus improving the automation level of the device.

[0069] 4. The second electric push rod 420 is activated to move the first fixing unit 400 horizontally, so that the axis fixing mechanism 450 can be aligned with the axis of the paper roll. Then, the paper roll is transported to the top of the pallet 300 by the picking unit 600, and the two ends of the axis of the paper roll are aligned with the two unclosed annular structures on both sides. Then, the picking unit 600 puts down the paper roll and closes the two sets of annular structures, thereby limiting the axis of the paper roll. Then, the friction between the annular structure and the axis of the paper roll is increased by the ring array of protrusions 452, which prevents it from rolling and turning over, thereby improving the fixing effect of the paper roll in the central axis direction.

[0070] 5. The top of the support block body 311 is designed as a fan-shaped annular arc slope 312, which allows the bottom of the paper roll to fit more closely to the support block body 311. This prevents the support block body 311 from causing local compression on the paper roll, thus leaving marks that affect the quality of the paper roll. When the paper roll tilts during transportation, the pressure on each set of pressure sensors 313 changes accordingly. The pressure value of the pressure sensor 313 closer to the tilted side increases. This causes the first electric push rod 314 of that set to drive the support block body 311 to rise and lift the paper roll, allowing it to return to its original position. This also ensures that each set of support block bodies 311 always fits closely to the bottom of the paper roll, guaranteeing the balance of the paper roll during transportation.

[0071] 6. By automatically monitoring the balance of the device, when uneven force is applied to both sides due to handling paper rolls or external forces, the position of the balance block 150 can be automatically adjusted to balance the weight on both sides of the device in a timely manner, preventing the device from tilting. The device can always be quickly balanced without manual adjustment. Furthermore, the first electric slide 140 has stepless motion, allowing the position of the balance block 150 to be adjusted freely according to the magnitude of the force, thereby improving the safety of handling operations.

[0072] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveying device for paper product manufacturing, comprising a self-propelled chassis (100) for movement, characterized in that: The self-propelled chassis (100) is rotatably connected to a workbench (200) at the top. Two sets of first fixing units (400) for fixing the paper roll shaft are symmetrically arranged at the front and rear ends of the workbench (200). A pallet (300) is fixedly installed at the center of the top of the workbench (200). Two sets of lifting components are symmetrically arranged on both sides of the top of the pallet (300). The lifting components include several sets of block mechanisms (310) arranged at equal intervals for lifting the paper roll from the bottom and preventing tilting. The tray (300) is symmetrically provided with two sets of second fixing units (500) on both sides perpendicular to the first fixing unit (400). The second fixing unit (500) is used to lift the paper roll from the side and adjust the lifting range according to the length of the paper roll. One of the second fixing units (500) is provided with a picking unit (600) on the side away from the pallet (300), the picking unit (600) being used to pick up the paper roll onto the pallet (300).

2. The conveying device for paper product production according to claim 1, characterized in that: The self-propelled chassis (100) includes a chassis body (110), a top cavity (120) is provided inside the chassis body (110), a balance block (150) is provided at the center of the top cavity (120), and two sets of first electric slides (140) are symmetrically arranged on the front and rear sides of the top cavity (120) along the horizontal direction.

3. The conveying device for paper product production according to claim 2, characterized in that: The balance block (150) is slidably connected to two sets of first electric slides (140) at both ends; an electronic level (170) is fixedly installed on the outer wall of one end of the chassis body (110), and the electronic level (170) is electrically connected to both sets of first electric slides (140).

4. A conveying device for paper product production according to claim 3, characterized in that: The block support mechanism (310) includes a block support body (311), the top of which has an arc slope (312) with a fan-shaped cross-section in side view; a pressure sensor (313) is embedded at the center of the top of the arc slope (312); a first electric push rod (314) is fixedly installed at the bottom of the block support body (311) in the vertical direction; the first electric push rod (314) is electrically connected to the pressure sensor (313).

5. A conveying device for paper product production according to claim 2, characterized in that: The first fixing unit (400) includes a translation plate (410), which is slidably connected to the second slide groove (210). Two sets of upright plates (411) are symmetrically arranged at the two ends of the translation plate (410). A set of second electric push rods (420) is fixedly installed on each set of upright plates (411) in the horizontal direction. The base of the second electric push rod (420) is fixedly installed on the main body of a set of second fixing units (500) on the same side.

6. A conveying device for paper product production according to claim 5, characterized in that: A triangular bracket (430) is fixedly installed at the top center of the translation plate (410). Two sets of inclined abutment rods (440) are installed on both sides of the triangular bracket (430) near and away from the support plate (300). A shaft fixing mechanism (450) is fixedly installed on the top of the triangular bracket (430).

7. A conveying device for paper product production according to claim 1, characterized in that: The second fixing unit (500) includes a side working box (510). The top of the side working box (510) is provided with a third sliding groove (511) along its own length direction. A third electric push rod (520) is vertically arranged inside the side working box (510). A linear guide rail (530) is horizontally arranged on the top of the third electric push rod (520) along the length direction of the side working box (510). An adjustment plate (540) is provided on the side of the linear guide rail (530) away from the third electric push rod (520). Several sets of adjustment slots (541) are arranged at equal intervals along the horizontal direction on the adjustment plate (540). The set of adjustment slots (541) in the middle is vertically arranged. Each set of adjustment slots (541) extending to both sides is inclined, and the inclination angle increases progressively.

8. A conveying device for paper product production according to claim 7, characterized in that: A horizontal slide bar (550) is horizontally arranged on the side of the adjusting plate (540) away from the linear guide rail (530). Several sets of slip rings (560) are slidably connected on the slide bar (550) in the same number as the adjusting groove (541). Each set of slip rings (560) is fixedly installed with a set of limiting guide rails (570) in the vertical direction on the side of the adjusting plate (540) close to the adjusting plate (540).

9. A conveying device for paper product production according to claim 8, characterized in that: Each set of horizontal sliding rods (550) is slidably connected to a set of adjusting rods (531), and the two ends of the adjusting rods (531) are slidably connected to the linear guide rail (530) and a corresponding set of limiting guide rails (570); the top of each set of slip rings (560) extends to the outside of the side work box (510) through the third slide groove (511), and a set of wrapping mechanism (580) is fixedly installed thereon.

10. A conveying device for paper product production according to claim 1, characterized in that: The handling unit (600) includes a second hydraulic turntable (610), a vertical pole (620) is fixedly installed on the top of the second hydraulic turntable (610), a motor housing (630) is fixedly installed on the top of the vertical pole (620), and a servo motor is provided inside the motor housing (630); a set of turntables (640) are rotatably connected to the outer walls on both sides of the motor housing (630), and the turntables (640) are connected to the output end of the servo motor; a triangular load-bearing arm (650) is fixedly installed on the turntable (640), and the triangular load-bearing arm (650) has a V-shaped structure; a load-bearing rod (660) is horizontally arranged between the output ends of the two sets of triangular load-bearing arms (650), and two sets of fourth electric push rods (670) are symmetrically arranged at both ends of the load-bearing rod (660), and a pneumatic gripper (680) is provided on the output end of the fourth electric push rod (670).

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