A conveying device for paper product processing

Abstract

The present application relates to a kind of paper product processing production conveying device, including processing room, the side end surface of the processing room is fixedly connected with hanging plate, the front side end surface of hanging plate is rotatably connected with feeding roller, the front side end surface of hanging plate and the position below feeding roller is rotatably connected with adjusting roller, the front side end surface of hanging plate and the side position of adjusting roller is movably connected with discharge roller, the front side end surface of hanging plate is also connected with tension adjusting mechanism, adjusting roller includes roller, roll shaft, main shaft, motor, centering piece and centering wheel, main shaft is coaxially arranged in the internal cavity of roller, motor is fixedly connected to one end of main shaft, roll shaft is provided with two groups, two groups of roll shafts are respectively arranged at the both ends of the inside of roller and are all sleeved on the outer wall of main shaft.The present application realizes the dynamic self-centering of roller and stepless damping tension control, can eliminate the radial runout of roller, stabilize paper material conveying posture, can be adapted to the tension requirement of different gram weight paper material by speed regulation.

Description

Technical Field

[0001] This invention relates to the field of paper product conveying equipment technology, specifically a material conveying device for paper product processing and production. Background Technology

[0002] In the paper product processing and production process, the paper feeding and conveying device is the core equipment in the front-end of processing steps such as printing, die-cutting, and slitting. It mainly undertakes the functions of feeding paper rolls, guiding the material belt and maintaining tension. Its conveying stability directly determines the processing accuracy and finished product quality of subsequent paper products. It is widely used in many industrial fields such as packaging printing, office paper, and specialty paper processing.

[0003] Existing paper feeding devices typically employ a conveyor roller structure supported by fixed bearings. The roller and the shaft are radially limited by bearings, and tension adjustment is achieved independently by external magnetic powder brakes, floating swing rollers, and other mechanisms.

[0004] Because of the inherent assembly gap between the roller and the support shaft, this type of structure cannot achieve dynamic self-centering during operation. The roller is prone to radial runout, and the tension adjustment and roller centering functions are independent and structurally dispersed. It is difficult to complete centering correction and damping tension control simultaneously through a single roller, making it difficult to meet the application requirements of high-precision paper material conveying. Summary of the Invention

[0005] The purpose of this invention is to provide a material feeding device for paper product processing and production, which aims to improve the problem of radial runout during operation caused by the inherent assembly gap between the roller and the support shaft in the prior art.

[0006] The objective of this invention is achieved through the following technical solution: a material conveying device for paper product processing and production, comprising a processing chamber, a suspension plate fixedly connected to one side end face of the processing chamber, a feeding roller rotatably connected to the front end face of the suspension plate, an adjusting roller rotatably connected to the front end face of the suspension plate and located below the feeding roller, a discharging roller movably connected to the front end face of the suspension plate and located to the side of the adjusting roller, and a tension adjusting mechanism also connected to the front end face of the suspension plate. The adjusting roller includes a roller, roller shaft, main shaft, motor, centering component, and centering wheel. The main shaft is coaxially inserted into the internal cavity of the roller. The motor is fixedly connected to one end of the main shaft. Two sets of rollers are provided, which are respectively arranged at both ends inside the roller and are both sleeved on the outer wall of the main shaft. The centering component is located on the outer wall of the main shaft and in the area between the two sets of rollers. The centering wheel is fixedly installed on the inner wall of the roller and corresponds to the position of the centering component. As a further description of the above technical solution: The roller includes an inner shaft, a fixed ring, and balls. The inner shaft is fixedly sleeved on the outer wall of the main shaft, the fixed ring is sleeved on the outer side of the inner shaft, and a number of balls are provided. The balls are evenly distributed in the annular gap between the outer wall of the inner shaft and the inner wall of the fixed ring. As a further description of the above technical solution: The centering component includes a swing shaft, a swing rod, a counterweight ball, a pull rod, a transmission rod, and a connecting frame. The swing shaft is fixedly connected to the outer wall of the main shaft. The middle part of the swing rod is hinged to the swing shaft. The counterweight ball is fixedly connected to the outer end of the swing rod. One end of the pull rod is hinged to the inner end of the swing rod. One end of the transmission rod is hinged to the other end of the pull rod. The connecting frame is slidably sleeved on the outer wall of the main shaft. The other end of the transmission rod is hinged to the side end face of the connecting frame. As a further description of the above technical solution: The centering wheel includes an inner wheel, an outer wheel, a docking magnetic block, and a centering platform. The inner wheel is sleeved on the outside of the main shaft and corresponds to the end face of the connecting frame of the centering component. The outer wheel is fixedly connected to the inner wall of the roller. Several sets of docking magnetic blocks are provided, and the several sets of docking magnetic blocks are evenly arranged on the outer wall of the inner wheel and the inner wall of the outer wheel. The centering platform is located on the outer end face of the outer wheel. As a further description of the above technical solution: The motor is fixedly installed on the outer end face of the suspension plate, and the end of the main shaft passes through the suspension plate and is fixedly connected to the output end of the motor. As a further description of the above technical solution: The tension adjustment mechanism includes a linkage ring, a push rod, a piston, a sleeve, and a pre-tightening spring. The linkage ring is rotatably sleeved on the end of the discharge roller shaft. The lower end of the push rod is fixedly connected to the outer wall of the linkage ring. The piston is fixedly connected to the upper end of the push rod. The sleeve is sleeved on the outside of the piston. The pre-tightening spring is located in the inner cavity of the sleeve and is positioned above the piston. As a further description of the above technical solution: The tension adjustment mechanism also includes a rotating platform, a sleeve, a telescopic rod, and an elastic lifting pile. The rotating platform is fixedly connected to the upper end of the sleeve, the sleeve is hinged to the side of the rotating platform, one end of the telescopic rod is slidably inserted into the inside of the sleeve, and the elastic lifting pile is fixedly connected to the other end of the telescopic rod. The end of the elastic lifting pile abuts against the side of the discharge roller shaft. As a further description of the above technical solution: An adjustment groove is provided on the front end face of the suspension plate, and the end of the discharge roller shaft is slidably installed inside the adjustment groove.

[0007] Compared with the prior art, the advantages of the present invention are as follows: 1. The motor drives the main shaft to rotate, which in turn drives the fixed swing shaft on the outer wall to make a circular motion. This causes the counterweight ball at the outer end of the swing arm to deflect around the swing shaft due to centrifugal force. The inner end of the swing arm drives the pull rod to move synchronously. The pull rod pulls the transmission rod to produce axial displacement. The transmission rod pushes the connecting frame to slide along the axis of the main shaft towards the centering wheel and fits against the end face of the inner wheel. This, together with the circumferentially arranged docking magnetic blocks on the inner wall of the outer wheel, completes circumferential alignment and radial centering. Combined with the rolling support structure of the rollers at both ends of the roller, dynamic self-centering and stepless damping tension control of the roller are achieved. This can eliminate radial runout of the roller, stabilize the paper material conveying posture, and adapt to the tension requirements of different paper weights by adjusting the rotation speed.

[0008] 2. The discharge roller, under the tension of the paper material, moves along the adjusting groove of the suspension plate, causing the linkage ring and the push rod to move synchronously. The piston at the upper end of the push rod slides in the inner cavity of the sleeve and compresses the pre-tightening spring. Combined with the lateral limiting structure consisting of the side rotating platform, sleeve, telescopic rod, and elastic lifting pile, this achieves the beneficial effects of floating buffering of instantaneous tension fluctuations during paper material conveying and lateral stabilization of the discharge roller. This structure can absorb tension impacts during conveying, restrain lateral movement of the roller, effectively reduce the risk of paper breakage, and ensure a stable and consistent paper material discharge posture. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the main body of an embodiment of a material conveying device for paper product processing and production proposed in this invention; Figure 2 This is a schematic diagram of the structure of the suspension plate of a material conveying device for paper product processing and production proposed in this invention; Figure 3 This is a schematic diagram of the structure of the adjusting roller of a material feeding device for paper product processing and production proposed in this invention; Figure 4 This is a schematic diagram of the structure of a roller in a material conveying device for paper product processing and production proposed in this invention; Figure 5 This is a schematic diagram of the centering component of a material conveying device for paper product processing and production proposed in this invention; Figure 6 This is a schematic diagram of the centering wheel of a material conveying device for paper product processing and production proposed in this invention; Figure 7 This is a schematic diagram of the tension adjustment mechanism of a material conveying device for paper product processing and production proposed in this invention; Figure 8 This is a schematic diagram of the rotating platform of a material conveying device for paper product processing and production proposed in this invention.

[0010] Labeling Explanation: 1. Processing Room; 2. Suspension Plate; 3. Feed Roller; 4. Adjusting Roller; 41. Roller; 42. Roller; 421. Inner Shaft; 422. Fixing Ring; 423. Ball Bearing; 43. Main Shaft; 44. Motor; 45. Centering Component; 451. Swing Shaft; 452. Swing Rod; 453. Counterweight Ball; 454. Pull Rod; 455. Transmission Rod; 456. Connecting Frame; 46. Centering Wheel; 461. Inner Wheel; 462. Outer Wheel; 463. Connecting Magnetic Block; 464. Centering Platform; 5. Discharge Roller; 6. Tension Adjustment Mechanism; 601. Linkage Ring; 602. Top Rod; 603. Piston; 604. Sleeve; 605. Preload Spring; 606. Rotating Table; 607. Sleeve; 608. Telescopic Rod; 609. Elastic Lifting Pile. Detailed Implementation

[0011] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 8 The diagram shown is an embodiment of a material conveying device for paper product processing provided by the present invention. The device includes a processing chamber 1, which provides an enclosed working space for paper product processing. A suspension plate 2 is fixedly connected to one end face of the processing chamber 1, providing a mounting base for each conveying roller and a tension adjustment mechanism 6. A feeding roller 3 is rotatably connected to the front end face of the suspension plate 2, which receives the paper material released from the paper roll and provides initial guidance and support. The front end face of the suspension plate 2, located below the feeding roller 3, rotates... An adjusting roller 4 is connected, which integrates self-centering and damping tension adjustment functions. It can correct its own coaxiality and provide adjustable tension for the paper. A discharge roller 5 is movably connected to the front end face of the suspension plate 2 and located to the side of the adjusting roller 4. The discharge roller 5 receives the adjusted paper and guides it to the processing area. At the same time, it acts as a floating unit to respond to the tension fluctuations of the paper. A tension adjustment mechanism 6 is also connected to the front end face of the suspension plate 2. The tension adjustment mechanism 6 works with the discharge roller 5 to achieve floating buffer compensation of the paper tension, constrain the running posture of the discharge roller 5, and absorb the tension impact during the conveying process.

[0012] The adjusting roller 4 includes a roller 41, a roller 42, a main shaft 43, a motor 44, a centering component 45, and a centering wheel 46. The roller 41 directly contacts and supports the paper strip surface, rotating synchronously with the paper feed, converting damping resistance into paper tension. The roller 42 provides rolling support at both ends inside the roller 41, maintaining the rotational clearance between the roller 41 and the main shaft 43, and reducing the frictional resistance between their relative rotation. The main shaft 43 serves as the mounting base for the centrifugal actuator, transmitting rotational power to generate centrifugal force. The centrifugal force provides the power source for the centering action and damping adjustment; the motor 44 outputs controllable rotational power to precisely regulate the operating speed of the main shaft 43, providing drive input for the centrifugal adjustment process; the centering component 45 rotates with the main shaft 43, generating centrifugal deflection action, which can output axial thrust to the centering wheel 46, triggering the centering action and adjusting the magnitude of the damping force; the centering wheel 46 bears the axial force of the centering component 45, cooperates to complete the radial centering correction of the roller 41, and provides adjustable circumferential damping resistance. The main shaft 43 is coaxially inserted into the internal cavity of the roller 41, the motor 44 is fixedly connected to one end of the main shaft 43, two sets of rollers 42 are provided, the two sets of rollers 42 are respectively arranged at both ends inside the roller 41 and are both sleeved on the outer wall of the main shaft 43, the centering component 45 is set on the outer wall of the main shaft 43 and located in the area between the two sets of rollers 42, and the centering wheel 46 is fixedly set on the inner wall of the roller 41 and corresponds to the position of the centering component 45.

[0013] The roller 42 includes an inner shaft 421, a retaining ring 422, and balls 423. The inner shaft 421 rotates synchronously with the main shaft 43, serving as the inner support base of the roller 42 and providing an inner rolling working surface for the balls 423. The retaining ring 422 is fixed to the inner wall of the roller 41, serving as the outer support base of the roller 42 and providing an outer rolling working surface for the balls 423. The balls 423 achieve relative rotation of the inner and outer bases through rolling friction, reducing friction loss and ensuring radial support stiffness. The inner shaft 421 is fixedly sleeved on the outer wall of the main shaft 43, and the retaining ring 422 is sleeved on the outer side of the inner shaft 421. Several balls 423 are provided, and the balls 423 are evenly distributed in the annular gap between the outer wall of the inner shaft 421 and the inner wall of the retaining ring 422.

[0014] The centering component 45 includes a swing shaft 451, a swing rod 452, a counterweight ball 453, a pull rod 454, a transmission rod 455, and a connecting frame 456. The swing shaft 451 provides a hinged rotation fulcrum for the swing rod 452, supporting the swing rod 452 to complete the deflection action. The swing rod 452 deflects and swings around the swing shaft 451, converting the centrifugal force generated by the counterweight ball 453 into an inner pulling force, realizing the change in the direction of the force. The counterweight ball 453 rotates with the main shaft 43 to generate centrifugal force, which provides support for the swing rod. The deflection of 452 provides power input, and the magnitude of the centrifugal force changes synchronously with the rotational speed of the main shaft 43; the tie rod 454 receives the deflection action of the inner end of the swing rod 452 and transmits the tension to drive the transmission rod 455 to generate displacement; the transmission rod 455 transmits the tension of the tie rod 454 and converts it into axial thrust, pushing the connecting frame 456 to slide axially along the main shaft 43; the connecting frame 456 slides axially along the main shaft 43, and applies the axial thrust evenly to the end face of the centering wheel 46, realizing centering loading and damping force adjustment. The swing shaft 451 is fixedly connected to the outer wall of the main shaft 43. The middle part of the swing rod 452 is hinged to the swing shaft 451. The counterweight ball 453 is fixedly connected to the outer end of the swing rod 452. One end of the pull rod 454 is hinged to the inner end of the swing rod 452. One end of the transmission rod 455 is hinged to the other end of the pull rod 454. The connecting frame 456 is slidably sleeved on the outer wall of the main shaft 43. The other end of the transmission rod 455 is hinged to the side end face of the connecting frame 456.

[0015] The centering wheel 46 includes an inner wheel 461, an outer wheel 462, a docking magnetic block 463, and a centering platform 464. The inner wheel 461 bears the axial clamping force of the connecting frame 456 and rotates synchronously with the main shaft 43, forming a damping pair structure with the outer wheel 462. The outer wheel 462 is fixed to the inner wall of the roller 41 and rotates synchronously with the roller 41, transmitting the damping torque to the roller 41 in cooperation with the inner wheel 461. The docking magnetic block 463 can achieve circumferential alignment and adsorption, providing magnetic resistance damping and assisting in completing the radial centering correction of the roller 41. The centering platform 464 enhances the structural support strength of the outer wheel 462 and maintains the assembly stability of the centering wheel 46 and the roller 41. The inner wheel 461 is sleeved on the outside of the main shaft 43 and corresponds to the end face of the connecting frame 456 of the centering component 45. The outer wheel 462 is fixedly connected to the inner wall of the roller 41. Several sets of mating magnetic blocks 463 are provided, and the sets of mating magnetic blocks 463 are evenly distributed on the outer wall of the inner wheel 461 and the inner wall of the outer wheel 462. The centering platform 464 is provided on the outer end face of the outer wheel 462. The motor 44 is fixedly installed on the outer end face of the suspension plate 2, and the end of the main shaft 43 passes through the suspension plate 2 and is fixedly connected to the output end of the motor 44.

[0016] The tension adjustment mechanism 6 includes a linkage ring 601, a push rod 602, a piston 603, a sleeve 604, and a preload spring 605. The linkage ring 601 moves synchronously with the discharge roller 5, transmitting the displacement of the discharge roller 5 to the push rod 602. The push rod 602 receives the displacement of the linkage ring 601 and drives the piston 603 to move synchronously along the axial direction of the sleeve 604. The piston 603 slides within the inner cavity of the sleeve 604, compressing or releasing the preload spring 605, converting the mechanical displacement into a change in spring force. The sleeve 604 provides a cavity for the piston 603 and the preload spring 605, limiting the sliding trajectory of the piston 603 and maintaining the axial stability of the buffering action. The preload spring 605 generates a reverse elastic force through elastic deformation, offsetting the tension fluctuation of the paper material, and realizing floating buffering and automatic compensation of tension. The linkage ring 601 is rotatably sleeved on the end of the discharge roller 5. The lower end of the push rod 602 is fixedly connected to the outer wall of the linkage ring 601. The piston 603 is fixedly connected to the upper end of the push rod 602. The sleeve 604 is sleeved on the outside of the piston 603. The preload spring 605 is set in the inner cavity of the sleeve 604 and located above the piston 603.

[0017] The tension adjustment mechanism 6 also includes a rotating platform 606, a sleeve 607, a telescopic rod 608, and an elastic lifting pile 609. The rotating platform 606 provides a hinge fulcrum for the sleeve 607, allowing the sleeve 607 to adaptively deflect with the position of the discharge roller 5. The sleeve 607 is fitted on the outside of the telescopic rod 608, limiting the extension and retraction trajectory of the telescopic rod 608 and providing an installation base for the lateral support structure. The telescopic rod 608 slides and retracts inside the sleeve 607, adaptively adjusting its support length with the displacement of the discharge roller 5 and transmitting the lateral support force. The elastic lifting pile 609 provides a lateral elastic constraint force, constraining the lateral movement of the discharge roller 5 and buffering lateral vibration. The rotating platform 606 is fixedly connected to the upper end of the sleeve 604. The sleeve 607 is hinged to the side of the rotating platform 606. One end of the telescopic rod 608 is slidably inserted into the inside of the sleeve 607. The elastic lifting pile 609 is fixedly connected to the other end of the telescopic rod 608. The end of the elastic lifting pile 609 abuts against the side of the roller shaft of the discharge roller 5.

[0018] An adjustment groove is provided on the front end face of the suspension plate 2. The adjustment groove provides a sliding guide track for the roller shaft of the discharge roller 5, allowing the discharge roller 5 to move in a preset direction in response to changes in paper tension. The end of the roller shaft of the discharge roller 5 is slidably installed inside the adjustment groove.

[0019] Working principle: When the device is in the standby state, the motor 44 is not started, the main shaft 43 remains stationary, the swing arm 452 of the centering component 45 is in the retracted state, the counterweight ball 453 is close to the outer wall of the main shaft 43, the connecting frame 456 is in the initial position away from the centering wheel 46, the roller 41 is loosely sleeved on the outside of the main shaft 43 through the rollers 42 at both ends, and can rotate freely; the pre-tension spring 605 of the tension adjustment mechanism 6 is in the initial pre-compression state, the piston 603 is in the initial position inside the sleeve 604, the push rod 602 supports the discharge roller 5 through the linkage ring 601, the discharge roller 5 is in the initial working position of the adjustment groove of the suspension plate 2, the telescopic rod 608 maintains the initial extension length inside the sleeve 607, and the elastic lifting pile 609 abuts against the side of the roller shaft of the discharge roller 5. After the operator sets up the paper roll to be processed, the paper material end is pulled around the outer wall of the roller 41 of the feeding roller 3, the adjusting roller 4, and the discharge roller 5 in sequence, and finally the paper material end is introduced into the processing room 1 to complete the preparation for feeding.

[0020] After the material is threaded, the device starts, and the motor 44 begins to run, driving the main shaft 43 to rotate. During the rotation of the main shaft 43, the swing shaft 451, fixed to the outer wall of the main shaft 43, moves synchronously with the main shaft 43 in a circular motion. The counterweight ball 453 at the outer end of the swing rod 452 is subjected to centrifugal force, causing the swing rod 452 to deflect around the swing shaft 451. The counterweight ball 453 swings away from the axis of the main shaft 43, while the inner end of the swing rod 452 swings closer to the axis of the main shaft 43. The deflection of the inner end of the swing rod 452 causes the pull rod 454 to move synchronously. The pull rod 454 pulls the transmission rod 455 to produce axial displacement. The transmission rod 455 pushes the connecting frame 456 to slide along the axis of the main shaft 43 towards the centering wheel 46. The connecting frame 456 gradually approaches and fits against the centering wheel 46. As the rotational speed of the main shaft 43 increases, the centrifugal force on the end face of the inner wheel 461 of the spindle 46 continuously increases, and the axial force of the connecting frame 456 on the inner wheel 461 gradually increases. The inner wheel 461 and the outer wheel 462 complete circumferential alignment and radial centering through the circumferentially arranged docking magnetic blocks 463. The outer wheel 462 is fixed to the inner wall of the roller 41, thereby driving the entire roller 41 to complete radial centering, so that the axis of the roller 41 coincides with the axis of the main shaft 43. The rollers 42 at both ends of the roller 41 provide radial support synchronously. The inner shaft 421 rotates synchronously with the main shaft 43. The fixing ring 422 keeps in contact with the inner wall of the roller 41. The balls 423 roll between the inner shaft 421 and the fixing ring 422, maintaining the rotational clearance and support rigidity between the roller 41 and the main shaft 43.

[0021] The paper stock is continuously conveyed forward under the pull of the downstream traction mechanism. The friction between the paper stock and the outer wall of the roller 41 drives the roller 41 to rotate around the axis. During the rotation of the roller 41, the fixed ring 422 rotates synchronously with the roller 41, the inner shaft 421 rotates with the main shaft 43, and the ball bearing 423 rolls continuously in the annular gap between the inner shaft 421 and the fixed ring 422, realizing the relative rotation between the roller 41 and the main shaft 43. The main shaft 43 maintains a constant speed and continues to rotate. The counterweight ball 453 is continuously subjected to centrifugal force, which keeps the swing arm 452 in a deflected state. The connecting frame 456 continuously applies axial force to the inner wheel 461 to maintain the centering and matching state of the inner wheel 461 and the outer wheel 462, so that the roller 41 always remains coaxial with the main shaft 43 during the rotation process, and continuously completes the radial centering function. The centering platform 464 rotates synchronously with the outer wheel 462 to maintain the internal structural support of the roller 41.

[0022] When it is necessary to adjust the paper material conveying tension, the output speed of the motor 44 is adjusted to change the rotation speed of the main shaft 43. When the speed of the main shaft 43 increases, the centrifugal force on the counterweight ball 453 increases, the deflection angle of the swing arm 452 increases, the displacement of the pull rod 454 and the transmission rod 455 increases, the axial pressing force of the connecting frame 456 on the inner wheel 461 increases, the circumferential damping effect of the mating magnetic block 463 between the inner wheel 461 and the outer wheel 462 is enhanced, the circumferential resistance on the rotation of the roller 41 increases, the pulling force required for the paper material to pull the roller 41 increases synchronously, and the paper material conveying tension increases accordingly. When the speed of the main shaft 43 decreases, the centrifugal force on the counterweight ball 453 decreases, the deflection angle of the swing arm 452 decreases, the axial pressing force of the connecting frame 456 on the inner wheel 461 decreases, the circumferential damping effect between the inner wheel 461 and the outer wheel 462 weakens, the circumferential resistance on the rotation of the roller 41 decreases, and the paper material conveying tension decreases accordingly.

[0023] When instantaneous tension fluctuations occur during paper material conveying, the tension change acts on the discharge roller 5, causing the discharge roller 5 to shift along the adjusting groove on the suspension plate 2. This shift in the discharge roller 5 drives the linkage ring 601 to move synchronously. The linkage ring 601 then drives the push rod 602 to move axially along the sleeve 604. The piston 603 at the upper end of the push rod 602 slides synchronously within the inner cavity of the sleeve 604. When the paper material tension increases, the discharge roller 5 is pulled upwards, and the piston 603 compresses the preload spring 605 upwards. The reverse elastic force generated by the preload spring 605 is transmitted to the discharge roller 5 through the piston 603, push rod 602, and linkage ring 601, offsetting part of the tension increase. When the paper material tension decreases, the preload spring 605 releases its elastic force, pushing the piston 603 downwards, causing the push rod 602 and the discharge roller 5 to shift downwards, maintaining the tension of the paper material and completing the buffering compensation for instantaneous tension fluctuations.

[0024] During the displacement of the discharge roller 5 along the adjusting groove, the elastic lifting pile 609 on the side always abuts against the side of the roller shaft of the discharge roller 5. The telescopic rod 608 slides and extends within the sleeve 607 as the discharge roller 5 moves, and the sleeve 607 deflects adaptively around the rotating platform 606. The elastic force of the elastic lifting pile 609 constrains and buffers the lateral movement of the discharge roller 5. Together with the axial pre-tightening spring 605 buffer structure, it limits the displacement amplitude of the discharge roller 5, avoids jamming and skew of the discharge roller 5, and ensures the stable conveying posture of the paper at the discharge end.

[0025] After the paper material is processed, the motor 44 gradually reduces its speed until it stops. The speed of the main shaft 43 decreases synchronously, the centrifugal force on the counterweight ball 453 gradually decreases, the swing arm 452 gradually rotates back to the retracted state, and the pull rod 454 and the transmission rod 455 drive the connecting frame 456 to retract along the axis of the main shaft 43 away from the centering wheel 46. The damping effect between the inner wheel 461 and the outer wheel 462 gradually disappears. After the main shaft 43 stops completely, the centering component 45 is fully reset, the roller 41 resumes free rotation, the preload spring 605 of the tension adjustment mechanism 6 pushes the piston 603 to reset, the discharge roller 5 returns to the initial position, the telescopic rod 608 and the elastic lifting pile 609 return to the initial position synchronously, and the device returns to the standby state, waiting for the next feeding operation.

Claims

1. A material conveying device for paper product processing, comprising a processing room (1), characterized in that: A suspension plate (2) is fixedly connected to one side end face of the processing room (1). A feeding roller (3) is rotatably connected to the front end face of the suspension plate (2). An adjusting roller (4) is rotatably connected to the front end face of the suspension plate (2) and located below the feeding roller (3). A discharge roller (5) is movably connected to the front end face of the suspension plate (2) and located to the side of the adjusting roller (4). A tension adjusting mechanism (6) is also connected to the front end face of the suspension plate (2). The adjusting roller (4) includes a roller (41), a roller (42), a main shaft (43), a motor (44), a centering component (45), and a centering wheel (46). The main shaft (43) is coaxially inserted into the internal cavity of the roller (41). The motor (44) is fixedly connected to one end of the main shaft (43). There are two sets of rollers (42). The two sets of rollers (42) are respectively arranged at both ends inside the roller (41) and are both sleeved on the outer wall of the main shaft (43). The centering component (45) is set on the outer wall of the main shaft (43) and is located in the area between the two sets of rollers (42). The centering wheel (46) is fixedly set on the inner wall of the roller (41) and corresponds to the position of the centering component (45).

2. The material conveying device for paper product processing and production according to claim 1, characterized in that: The roller (42) includes an inner shaft (421), a fixing ring (422) and balls (423). The inner shaft (421) is fixedly sleeved on the outer wall of the main shaft (43), and the fixing ring (422) is sleeved on the outer side of the inner shaft (421). There are several balls (423), and the balls (423) are evenly distributed in the annular gap between the outer wall of the inner shaft (421) and the inner wall of the fixing ring (422).

3. The material conveying device for paper product processing and production according to claim 1, characterized in that: The centering component (45) includes a swing shaft (451), a swing rod (452), a counterweight ball (453), a pull rod (454), a transmission rod (455), and a connecting frame (456). The swing shaft (451) is fixedly connected to the outer wall of the main shaft (43). The middle part of the swing rod (452) is hinged to the swing shaft (451). The counterweight ball (453) is fixedly connected to the outer end of the swing rod (452). One end of the pull rod (454) is hinged to the inner end of the swing rod (452). One end of the transmission rod (455) is hinged to the other end of the pull rod (454). The connecting frame (456) is slidably sleeved on the outer wall of the main shaft (43). The other end of the transmission rod (455) is hinged to the side end face of the connecting frame (456).

4. The material conveying device for paper product processing and production according to claim 1, characterized in that: The centering wheel (46) includes an inner wheel (461), an outer wheel (462), a docking magnetic block (463), and a centering platform (464). The inner wheel (461) is sleeved on the outside of the main shaft (43) and corresponds to the end face of the connecting frame (456) of the centering component (45). The outer wheel (462) is fixedly connected to the inner wall of the roller (41). Several sets of docking magnetic blocks (463) are provided. Several sets of docking magnetic blocks (463) are evenly arranged on the outer wall of the inner wheel (461) and the inner wall of the outer wheel (462). The centering platform (464) is located on the outer end face of the outer wheel (462).

5. A material conveying device for paper product processing and production according to claim 1, characterized in that: The motor (44) is fixedly installed on the outer end face of the suspension plate (2), and the end of the main shaft (43) passes through the suspension plate (2) and is fixedly connected to the output end of the motor (44).

6. The material conveying device for paper product processing and production according to claim 1, characterized in that: The tension adjustment mechanism (6) includes a linkage ring (601), a push rod (602), a piston (603), a sleeve (604), and a preload spring (605). The linkage ring (601) is rotatably sleeved on the end of the discharge roller (5). The lower end of the push rod (602) is fixedly connected to the outer wall of the linkage ring (601). The piston (603) is fixedly connected to the upper end of the push rod (602). The sleeve (604) is sleeved on the outside of the piston (603). The preload spring (605) is located in the inner cavity of the sleeve (604) and above the piston (603).

7. A material conveying device for paper product processing and production according to claim 6, characterized in that: The tension adjustment mechanism (6) further includes a rotating platform (606), a sleeve (607), a telescopic rod (608), and an elastic lifting pile (609). The rotating platform (606) is fixedly connected to the upper end of the sleeve (604). The sleeve (607) is hinged to the side of the rotating platform (606). One end of the telescopic rod (608) is slidably inserted into the inside of the sleeve (607). The elastic lifting pile (609) is fixedly connected to the other end of the telescopic rod (608). The end of the elastic lifting pile (609) abuts against the side of the roller shaft of the discharge roller (5).

8. The material conveying device for paper product processing and production according to claim 1, characterized in that: The front end face of the suspension plate (2) is provided with an adjustment groove, and the end of the roller shaft of the discharge roller (5) is slidably installed inside the adjustment groove.

Images