Movable clamping arm component

Abstract

The utility model relates to the field of joint between paper, in particular to a movable clamping arm component which is in a suspended state in a paper receiving machine and comprises a linear moving mechanism moving in the paper receiving machine, at least two clamping arms are arranged at the output end of the linear moving mechanism, and clamping heads penetrating into the axis of a paper roll are arranged on the clamping arms. Wherein a rotating structure is arranged in the clamping head, a driving source for providing torque for the rotating structure or driving the rotating structure to rotate is arranged on the clamping arm, so that the clamping head drives the paper roll to rotate, the movable clamping arm component comprises a linear moving mechanism and can move to the logistics channel under the action of the linear moving mechanism, and at the moment, the linear moving mechanism can move to the logistics channel. The two chucks are used for clamping a new paper roll and feeding the new paper roll into the paper receiving machine, in the whole process, the manual intervention carrying and assembling process is replaced, time and labor are saved, and meanwhile, as a movable clamping arm component replacing an original support, the function of rotating the new paper roll is achieved through the chucks and a driving source.

Description

Technical Field

[0001] This utility model relates to the field of joining papers, and more particularly to a movable clamping arm component. Background Technology

[0002] A paper splicer is a device used to join two separate sheets of paper together. It is a device that can continuously feed and deliver paper without stopping the machine.

[0003] Traditional paper splicing machines, such as the one described in patent number CN201520861053.2 as a synchronous moving and positioning device for the paper splicing trolley of a corrugated cardboard splicing machine, are semi-automatic. The paper roll is transported to the periphery of the original paper rack through a logistics channel, and then the paper roll is manually pushed to fit onto the support shaft of the original paper rack. The paper roll is very heavy, and it is quite strenuous for a person to push it. Utility Model Content

[0004] To solve the above problems, this utility model provides a movable clamping arm component, which replaces the original paper holder. The movable clamping arm can be moved into the logistics channel to directly grab the paper roll, eliminating the need for manual paper roll pushing.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a movable clamping arm component, which is suspended in the paper splicer, characterized in that the movable clamping arm component includes a linear moving mechanism that moves within the paper splicer, and at least two clamping arms are provided on the output end of the linear moving mechanism. Each clamping arm is provided with a chuck that passes through the paper roll shaft, wherein the chuck has a rotating structure inside, and the clamping arm is provided with a drive source that provides torque to the rotating structure or drives the rotating structure to rotate, so that the chuck drives the paper roll to rotate.

[0006] The beneficial effects of this utility model are:

[0007] The movable clamping arm component includes a linear moving mechanism. Under the action of the linear moving mechanism, it can move to the logistics channel. At this time, the new paper roll is clamped by two clamps and fed into the paper receiving machine. In the whole process, it replaces the manual handling and assembly process, saving time and effort. At the same time, as a movable clamping arm component that replaces the original support, its function of rotating the new paper roll is realized by the clamps and the drive source.

[0008] The drive source is used to drive the rotating structure to rotate, thereby increasing the rotational speed of the new paper roll and ensuring that the speed of the new and old paper is equal when the paper is connected. Of course, the drive source can also provide a torque. For example, if it takes 100 kg of force to push the paper roll to rotate, the drive source only provides 50 kg of torque. When the paper is subjected to a 50 kg pulling force, the entire paper roll is pulled and begins to rotate. The above is just an example.

[0009] On the other hand, the drive source can also drive the rotating structure to rotate in the opposite direction. After the new and old papers are joined, the old paper needs to be rolled up (after the new and old papers are joined, a part of the old paper is outside the paper roll, and the remaining old paper needs to be rolled up).

[0010] The rotating structure is equipped with a braking mechanism to brake the rotation of the paper roll. When changing the paper roll, the chuck cannot rotate. The braking mechanism includes a brake disc, a seat, and several brakes. The rotating structure includes a top shaft, which passes through the clamping arm and is fitted by the brake disc. The brake disc is located in the seat. The seat includes a first seat, a connecting piece, and a second seat. The second seat is located on one side of the clamping arm. The first seat and the second seat are separated from each other and are connected by a ring array of connecting pieces. The space between the connecting pieces is the installation space for the brakes. The brakes are located in the aforementioned installation space. The brakes have a brake seat and brake pads. After the mounting part on the brake seat is fixed to the first seat, the brake part on the brake seat and the brake disc are adjacent, so that the brake pads in the brake part and the brake disc are opposite each other. Specifically, the brakes are also distributed on the back of the first seat. When braking, the front and rear brake pads clamp the brake disc simultaneously, thereby achieving the braking effect.

[0011] The brake uses hydraulic pressure to push the brake pads into contact with the brake disc. The brake is a current technology, and its structure will not be described in detail.

[0012] The brake disc has multiple interconnected slots on its circumference to increase the surface area in contact with air, thus achieving a heat dissipation effect.

[0013] Since the chuck is designed with a braking effect, the drive source is a separate structure. This is to avoid mechanical damage to the drive source when braking.

[0014] The drive source includes a cylinder base, a telescopic cylinder, a rocker plate, a drive gear, a driven gear, and a drive motor. The cylinder base is mounted on the clamping arm, and the telescopic cylinder is rotatably connected to the cylinder base. The piston rod of the telescopic cylinder is rotatably connected to one end of the rocker plate, and the other end of the rocker plate is rotatably connected to the clamping arm via a shaft. The drive motor is mounted on the rocker plate, the drive gear is mounted on the output shaft of the drive motor, and the driven gear is mounted on the top shaft. During acceleration, the telescopic cylinder adjusts the position of the rocker plate, causing the drive gear to move closer to the driven gear, thus engaging them. After acceleration ends, the telescopic cylinder drags the rocker plate back to its original position, separating the driven gear from the drive gear. Another improvement of this invention is that the braking system is integrated into the clamp, which significantly improves the compactness of the entire device and increases space utilization.

[0015] The paper roll is fitted onto the roller shaft, and the roller shaft has first positioning teeth at both ends. The rotating structure is fitted with a positioning sleeve on the part of the paper roll roller shaft, and the positioning sleeve has a second positioning tooth that meshes with the first positioning tooth. In the meshing state, the rotation speed of the paper roll can be kept consistent with the rotation speed of the chuck.

[0016] The chuck also includes a paper pusher, which consists of a paper pusher cylinder and a paper pusher plate. The paper pusher cylinder is mounted on the chuck arm, and the paper pusher plate is fitted onto the positioning sleeve. The outer edge of the positioning sleeve extends outwards. The roller of the paper roll is directly fitted onto the positioning sleeve. The paper is quite heavy. For example, after feeding the paper, the old paper roll needs to be unloaded. However, a roll of paper weighs one ton. After feeding the paper, the middle part of the roller has already buckled. This deformation causes the positioning sleeve and the roller to be in close contact and cannot be easily separated. There is already slight deformation. At this time, the paper pusher cylinder pushes the paper pusher plate, which pushes the roller, forcing the roller to separate from the positioning sleeve.

[0017] It should be noted that the linear movement mechanism includes not only the direction in which the gripper moves to the paper roll, but also the direction in which the two grippers move closer to each other.

[0018] The linear moving mechanism includes a lateral moving part and a longitudinal moving part. The lateral moving part includes a crossbeam and sliding parts disposed at both ends of the crossbeam. The sliding parts are slidably connected to the paper feeder. A drive gear is provided on the sliding part, which meshes with a rack in the paper feeder. In another embodiment, at least two crossbeams are provided, and the longitudinal moving part is disposed on both crossbeams, located between the two crossbeams. The clamping arm is connected to the output end of the longitudinal moving part. The purpose of providing two crossbeams is to address the stress issue. Since the center of gravity of the clamping arm, clamp, etc., cannot be controlled on the same center line, after assembly into the longitudinal moving part, the clamping arm, clamp, etc., are offset on a single crossbeam. By providing two crossbeams, the problem of local buckling of the crossbeam easily caused by offset loads is solved.

[0019] The two clamping arms can move closer or further apart to accommodate different paper widths. For example, if the width of one batch of paper is 2 meters and the width of the next batch is 2.5 meters, the distance between the clamping arms needs to be adjusted. This is achieved through two mechanisms, one for each clamping arm. Such a mechanism includes:

[0020] The system comprises a rotary motor, a slider, a lead screw, and driven wheels. A bearing seat is located on the lower end of the crossbeam, with both ends of the lead screw positioned within the bearing seat, allowing it to rotate on the crossbeam. The slider is fitted onto the lead screw, and its surface has a groove that engages with the lower end of the crossbeam. In other words, the lower end of the crossbeam acts as a slide rail that engages with the groove. Furthermore, the slider and lead screw are connected by a threaded connection. The driven wheels are fitted onto the motor shaft of the rotary motor and the lead screw. As the lead screw rotates, the slider moves along its axial direction. The longitudinal movement component is located on the slider; therefore, the clamping arms and chucks also move laterally with the longitudinal movement component, thus adjusting the distance between the two chucks.

[0021] In addition, multiple guide wheels are provided on the slider. The guide wheels are distributed in both horizontal and vertical directions. The roller surface of the guide wheel is attached to the crossbeam. Specifically, the side wall of the crossbeam is provided with grooves. The vertical guide wheel is embedded in the groove, and its roller surface is attached to the bottom surface of the groove. The roller surface of the horizontally distributed guide wheel abuts against the side wall of the slider. This design is to enable the slider to move smoothly and effectively reduce the shaking generated during movement. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention.

[0023] Figure 2 yes Figure 1 Enlarged diagram of point A.

[0024] Figure 3 It is a 3D diagram of the clamp.

[0025] Figure 4 This is a 3D view of the fixing plate after it separates from the clamp.

[0026] Figure 5 It is a 3D diagram of the brake.

[0027] Figure 6 It is a 3D view of the assembled clamping arm and chuck.

[0028] Figure 7 This is an assembly diagram of the clamp arm and the paper pusher.

[0029] Figure 8 It is a 3D view of the horizontally moving part.

[0030] Figure 9 yes Figure 8 Enlarged diagram of point B.

[0031] Figure 10 yes Figure 8 A 3D view from another direction.

[0032] Figure 11yes Figure 10 Enlarged diagram of point C.

[0033] Figure 12 yes Figure 1 A stereoscopic view from another perspective.

[0034] Figure 13 yes Figure 1 Another 3D view.

[0035] Figure 14 yes Figure 13 Enlarged diagram of point D. Detailed Implementation

[0036] like Figure 1-14 As shown, a movable clamping arm component is suspended in a paper splicer. The movable clamping arm component includes a linear moving mechanism that moves within the paper splicer. At least two clamping arms 3 are provided on the output end of the linear moving mechanism. Each clamping arm 3 is provided with a chuck 2 that passes through the paper roll shaft. The chuck 2 has a rotating structure inside. The clamping arm 3 is provided with a drive source that provides torque to the rotating structure or drives the rotating structure to rotate, so that the chuck drives the paper roll to rotate.

[0037] The beneficial effects of this utility model are:

[0038] The movable clamping arm component includes a linear moving mechanism. Under the action of the linear moving mechanism, it can move to the logistics channel. At this time, the two clamps 2 clamp the new paper roll and send the new paper roll into the paper receiving machine. In the whole process, it replaces the manual handling and assembly process, saving time and effort. At the same time, as a movable clamping arm component that replaces the original support, its function of rotating the new paper roll is realized by the clamps 2 and the drive source.

[0039] The drive source is used to drive the rotating structure to rotate, thereby increasing the rotational speed of the new paper roll and ensuring that the speed of the new and old paper is equal when the paper is connected. Of course, the drive source can also provide a torque. For example, if it takes 100 kg of force to push the paper roll to rotate, the drive source only provides 50 kg of torque. When the paper is subjected to a 50 kg pulling force, the entire paper roll is pulled and begins to rotate. The above is just an example.

[0040] On the other hand, the drive source can also drive the rotating structure to rotate in the opposite direction. After the new and old papers are joined, the old paper needs to be rolled up (after the new and old papers are joined, a part of the old paper is outside the paper roll, and the remaining old paper needs to be rolled up).

[0041] The rotating structure is equipped with a braking mechanism to brake the rotation of the paper roll. When changing the paper roll, the chuck 2 cannot rotate. The braking mechanism includes a brake disc 21, a base, and several brakes 22. The rotating structure includes a top shaft 23, which passes through the clamping arm 3 and is fitted by the brake disc 21. The brake disc 21 is located within the base. The base includes a first base 24, connecting pieces 25, and a second base 26. The second base 26 is located on one side of the clamping arm 3. The first base 24 and the second base 26 are spaced apart and connected by a ring array of connecting pieces 25. The space between the connecting parts 25 is the installation space for the brake 22. The brake 22 is located in the installation space. The brake 22 has a brake seat and brake pads 22b. After the mounting part 22a-1 on the brake seat is fixed to the first seat body 24, the brake part 22a-2 on the brake seat and the brake disc 21 are adjacent to each other, so that the brake pads 22b in the brake part 22a-2 and the brake disc 21 are opposite to each other. Specifically, the brake 22 is also distributed on the back of the first seat body 24. When braking, the front and rear brake pads 22b clamp the brake disc 21 at the same time, thereby achieving the braking effect.

[0042] The brake 22 pushes the brake pads 22b into contact with the brake disc 21 by hydraulic pressure. The brake 22 is existing technology, and its structure will not be described in detail.

[0043] The brake disc 21 has multiple interconnected slots 21a on its circumferential surface, which increases the contact area with air and has a heat dissipation effect.

[0044] Since the chuck 2 has a braking effect, the drive source is a split structure. This is to avoid mechanical damage to the drive source when braking.

[0045] The drive source includes a cylinder base 41, a telescopic cylinder 42, a rocker plate 43, a drive gear 44, a driven gear 45, and a drive motor 46. The cylinder base 41 is mounted on the clamping arm 3. The telescopic cylinder 42 is rotatably connected to the cylinder base 41. The piston rod of the telescopic cylinder 42 is rotatably connected to one end of the rocker plate 43. The other end of the rocker plate 43 is rotatably connected to the clamping arm 3 via a shaft. The drive motor 46 is mounted on the rocker plate 43. The drive gear 44 is sleeved on the output shaft of the drive motor 46, and the driven gear 45 is sleeved on the top shaft 23. During acceleration, the telescopic cylinder 42 adjusts the position of the rocker plate 43, causing the drive gear 44 to move closer to the driven gear 45, thus engaging the drive gear 44 and the driven gear 45. After acceleration ends, the telescopic cylinder 42 drags the rocker plate 43 back to its original position, separating the driven gear 45 from the drive gear 44. Another improvement of this invention is that the braking system is integrated into the chuck 2. This design significantly improves the compactness of the entire device and increases the utilization of space.

[0046] The paper roll is fitted onto the roller shaft, and the roller shaft has first positioning teeth at both ends. The rotating structure is fitted with a positioning sleeve 61 on the part of the paper roll roller shaft. The positioning sleeve 61 has a second positioning tooth 62 that meshes with the first positioning tooth. In the meshing state, the rotation speed of the paper roll can be kept consistent with the rotation speed of the chuck 2.

[0047] The chuck also includes a paper pusher 5, which includes a paper pusher cylinder 51 and a paper pusher plate 52. The paper pusher cylinder 51 is mounted on the clamping arm 3, and the paper pusher plate 52 is fitted onto the positioning sleeve 61. The outer edge of the positioning sleeve 61 extends outwards. The roller of the paper roll is directly fitted onto the positioning sleeve 61. The paper is relatively heavy. For example, after feeding the paper, the old paper roll needs to be unloaded. However, a roll of paper weighs one ton. After feeding the paper, the middle part of the roller has already bent. This deformation causes the positioning sleeve 61 to be in close contact with the roller and cannot be easily separated. There is already slight deformation. At this time, the paper pusher cylinder 51 pushes the paper pusher plate 52, which pushes the roller and forces the roller to separate from the positioning sleeve 61.

[0048] It should be noted that the linear moving mechanism 1 includes not only the direction in which the chuck 2 moves to the paper roll, but also the direction in which the two chucks 2 move closer to each other.

[0049] The linear moving mechanism 1 includes a transverse moving part 100 and a longitudinal moving part 101. The transverse moving part 100 includes a crossbeam 100a and sliding parts 100b disposed at both ends of the crossbeam 100a. The sliding parts 100b are slidably connected to the paper feeder. At the same time, the sliding parts 100b are provided with a drive gear 100c, which meshes with a rack in the paper feeder. In another embodiment, there are at least two crossbeams 100a, and the longitudinal moving part 101 is disposed on two crossbeams 100a at the same time, and the longitudinal moving part 101 is located between the two crossbeams 100a. The clamping arm 3 is connected to the output end of the longitudinal moving part 101.

[0050] The purpose of setting two crossbeams 100a is to take into account the stress problem. Since the center of gravity of the clamp arm 3, clamp head 2 and other parts cannot be controlled on the same center of gravity line, after being assembled into the longitudinal moving part, the clamp arm 3, clamp head 2 and other parts are offset on a single crossbeam 100a. Setting two crossbeams 100a solves the problem that the offset load can easily cause local buckling of the crossbeam 100a.

[0051] The two clamping arms 3 can be moved closer or further apart to accommodate different paper widths. For example, if the width of the previous batch of paper is 2 meters and the width of the next batch is 2.5 meters, the distance between the clamping arms 3 needs to be adjusted. There are two mechanisms to achieve this, one for each clamping arm 3. These mechanisms include:

[0052] The system includes a rotary motor 200, a slider 201, a lead screw 202, and a driven wheel 203. A bearing 204 is provided on the lower end of the crossbeam 100a. Both ends of the lead screw 202 are respectively disposed in the bearing 204, allowing the lead screw 202 to rotate on the crossbeam 100a. The slider 201 is fitted onto the lead screw 202, and a groove is provided on the surface of the slider 201. The groove engages with the lower end of the crossbeam 100a; in other words, the lower end of the crossbeam 100a is a slide rail that engages with the groove. In addition, the slider 201 and the lead screw 202 are connected by a thread. The driven wheel 203 is respectively sleeved on the motor shaft of the rotary motor 200 and the lead screw 202. Under the rotation of the lead screw 202, the slider 201 moves along the axial direction of the lead screw 202. The longitudinal moving part 101 is set on the slider 201. Therefore, the clamping arm 3 and the clamp 2 will also move with the lateral movement of the longitudinal moving part 101, thereby achieving the problem of adjusting the distance between the two clamps 2.

[0053] In addition, multiple guide wheels 204 are provided on the slider 201. The guide wheels 204 are distributed in both horizontal and vertical directions. The roller surfaces of the guide wheels 204 are attached to the crossbeam 100a. Specifically, the side wall of the crossbeam 100a is provided with a groove 100a-1. The longitudinal guide wheels 204 are embedded in the groove 100a-1, and their roller surfaces are attached to the bottom surface of the groove 100a-1. The roller surfaces of the horizontally distributed guide wheels 204 abut against the side wall of the slider 201. This design is to enable the slider 201 to move smoothly and effectively reduce the shaking generated during movement.

[0054] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A movable clamping arm component, which is suspended in a paper splicer, characterized in that, The movable clamping arm component includes a linear moving mechanism that moves within the paper feeder. The output end of the linear moving mechanism is provided with at least two clamping arms. Each clamping arm is provided with a chuck that passes through the paper roll shaft. The chuck has a rotating structure inside. The clamping arm is provided with a drive source that provides torque to the rotating structure or drives the rotating structure to rotate, so that the chuck drives the paper roll to rotate.

2. The movable clamping arm component according to claim 1, characterized in that, The rotating structure is equipped with a braking mechanism, which includes a brake disc, a seat, and several brakes. The rotating structure includes a top shaft, which passes through the clamping arm and is fitted by the brake disc. The brake disc is located in the seat. The seat includes a first seat, a connecting piece, and a second seat. The second seat is located on one side of the clamping arm. The first seat and the second seat are separated from each other and are connected by a ring array of connecting pieces. The space between the connecting pieces is the installation space for the brakes. The brakes are located in the aforementioned installation space and have a brake seat and brake pads. After the mounting part on the brake seat is fixed to the first seat, the brake part on the brake seat and the brake disc are adjacent to each other, so that the brake pads in the brake part and the brake disc are opposite each other. Specifically, the brakes are also distributed on the back of the first seat.

3. A movable clamping arm component according to claim 2, characterized in that, The brake disc has multiple interconnected slots on its circumference.

4. A movable clamping arm component according to claim 2, characterized in that, The drive source includes a cylinder base, a telescopic cylinder, a rocker plate, a drive gear, a driven gear, and a drive motor. The cylinder base is mounted on the clamping arm. The telescopic cylinder is rotatably connected to the cylinder base. The piston rod of the telescopic cylinder is rotatably connected to one end of the rocker plate. The other end of the rocker plate is rotatably connected to the clamping arm via a shaft. The drive motor is mounted on the rocker plate. The drive gear is mounted on the output shaft of the drive motor, and the driven gear is mounted on the top shaft. The telescopic cylinder adjusts the position of the rocker plate, causing the drive gear to move closer to the driven gear, and thus the drive gear and the driven gear mesh.

5. A movable clamping arm component according to claim 1, characterized in that, A positioning sleeve is fitted onto the part of the rotating structure corresponding to the paper roll shaft, and the positioning sleeve is provided with a second positioning tooth.

6. A movable clamping arm component according to claim 5, characterized in that, The chuck also includes a paper pusher, which includes a paper pusher cylinder and a paper pusher plate. The paper pusher cylinder is mounted on the chuck arm, and the paper pusher plate is fitted onto the positioning sleeve. The outer edge of the positioning sleeve extends outwards, and the roller of the paper roll is directly fitted onto the positioning sleeve.

7. A movable clamping arm component according to claim 1, characterized in that, The linear moving mechanism includes a lateral moving part and a longitudinal moving part. The lateral moving part includes a crossbeam and sliding parts disposed at both ends of the crossbeam. The sliding parts are slidably connected to the paper feeder. At the same time, the sliding parts are provided with a drive gear, which meshes with the rack in the paper feeder. There are at least two crossbeams, and the longitudinal moving part is disposed on two crossbeams and located between the two crossbeams. The clamping arm is connected to the output end of the longitudinal moving part.

8. A movable clamping arm component according to claim 7, characterized in that, It also includes a rotary motor, a slider, a lead screw, and a driven wheel. A bearing seat is provided on the lower part of the crossbeam, and the two ends of the lead screw are respectively set in the bearing seat, so that the lead screw can rotate on the crossbeam. The slider is sleeved on the lead screw, and a groove is provided on the surface of the slider. The groove cooperates with the lower end of the crossbeam. The slider and the lead screw are connected by threads. The driven wheel is respectively sleeved on the motor shaft of the rotary motor and the lead screw. The longitudinal moving part is set on the slider.

9. A movable clamping arm component according to claim 8, characterized in that, The slider is also provided with multiple guide wheels, which are distributed in both horizontal and vertical directions. The roller surface of the guide wheel is attached to the crossbeam, and the side wall of the crossbeam is provided with a groove. The vertical guide wheel is embedded in the groove, and its roller surface is attached to the bottom surface of the groove. The horizontally distributed guide wheel has its roller surface abutting against the side wall of the slider.

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