Rewinding shaft transmission assembly and rewinding machine

Abstract

The utility model provides a rewinding shaft transmission assembly and a rewinding machine, the rewinding shaft transmission assembly comprises a rotating disc, a plurality of rewinding shafts on the rotating disc, and two flexible transmission parts in different planes, each rewinding shaft is connected with a driven wheel which rotates coaxially with the rewinding shaft and an idle wheel which can rotate relative to the rewinding shaft, and each rewinding shaft is provided with a driven wheel which rotates coaxially with the rewinding shaft and an idle wheel which can rotate relative to the rewinding shaft. One of the transmission wheel and the idle wheel is arranged on a first plane, and the other one of the transmission wheel and the idle wheel is arranged on a second plane; a plurality of rewinding shafts are arranged on the rotating disc, and the driven wheel of one rewinding shaft and the idle wheel of the other rewinding shaft are located on different planes between any two adjacent rewinding shafts. The flexible transmission part drives the driven wheel and the rewinding shaft where the driven wheel is located, and the driven wheel and the rewinding shaft are located, wherein the driven wheel and the flexible transmission part are located on the same plane and located at the rewinding station, the ending station and the process position between the two stations. The rewinding machine comprises a rewinding shaft transmission assembly. The utility model solves the problem that the wide paper tape is loosened from the rewinding process to the ending process.

Description

Technical Field

[0001] The utility model relates to the technical field of rewinding machines, in particular to a vertical rewinding machine for wide paper strips and a rewinding shaft transmission component thereof. Background Art

[0002] There is a rewinding machine for printing consumables ribbons, which includes a horizontally arranged turntable and multiple processing devices arranged on the outer circumference of the turntable corresponding to multiple different workstations. Multiple rewinding shafts are arranged on the circumferential position of the turntable. The rewinding shafts are used to supply the core, position the axis of the core and limit the rotation of the core. Under the rotation of the turntable, each rewinding shaft can flow between multiple different workstations, so that the core can be driven to perform multiple processes including rewinding, cutting, gluing and finishing. At the same time, the rewinding shafts located at different workstations can simultaneously drive the core to perform different processes. Among them, since gluing is required before finishing after rewinding, the rewinding process and the finishing process are carried out at two different workstations.

[0003] The rewinding shaft is driven by a motor. Since the motor requires wiring, it is difficult to fix it coaxially with the rewinding shaft so that it rotates with the turntable. Generally, the motor is fixed at the workstation where the rewinding shaft needs to rotate, and the motor's output shaft is connected to the rewinding shaft through a clutch.

[0004] Wide paper tapes need to be rewound. Compared to printing ribbons, paper tapes are much wider and have a smoother surface, so they are more susceptible to becoming loose after rewinding. When rewinding wide paper tapes using existing rewinders, once a core completes rewinding at the rewinding station and the clutch is disengaged, the core is transported to the finishing station in a non-rotating state. This can cause the wide paper tape to become loose, leading to rewinding failure. Utility Model Content

[0005] The first purpose of the utility model is to provide a rewinding shaft transmission assembly that solves the problem of loosening of wide paper tape from the rewinding process to the finishing process.

[0006] The second purpose of the utility model is to provide a rewinding machine that solves the problem of loosening of wide paper tape from the rewinding process to the finishing process.

[0007] The first and second flexible transmission members are arranged on the second plane, and the ... driving members are arranged on the second plane, and the first and second driving members are arranged on the second plane, and the first and second driving members are arranged on the second plane, and the first and second driving members are arranged on the second plane, and the first and second driving members are arranged on the second plane, and the first and second driving members are arranged on the second plane, and the first and second driving members are arranged on the second plane, and the first and second driving members are arranged on the The driven wheels are all arranged on the periphery of multiple rewinding shafts; the rewinding shaft transmission assembly also includes a driven wheel and an idler wheel, each rewinding shaft is connected to a driven wheel rotating coaxially with the rewinding shaft and an idler wheel rotatable relative to the rewinding shaft, and on each rewinding shaft, one of the driving wheel and the idler wheel is arranged in a first plane, and the other of the driving wheel and the idler wheel is arranged in a second plane; there are multiple rewinding shafts arranged on the turntable, and between any two adjacent rewinding shafts, the driven wheel of one rewinding shaft and the idler wheel of another rewinding shaft are in different planes; the first flexible transmission member and the second flexible transmission member can drive the driven wheel and the rewinding shaft on which it is located that are in the same plane as it and are in the rewinding station, in the tailing station, and in the process position between the rewinding station and the tailing station to rotate.

[0008] As can be seen from the above, under this setting, the rotating shafts of the adjacent rewinding shafts will be driven alternately by the first flexible transmission member and the second flexible transmission member, and the driven wheel on the rewinding shaft will remain engaged with the flexible transmission member that drives it during the process of moving from the rewinding station to the finishing station. Therefore, the rewinding shaft will also keep rotating to prevent loosening during the process of moving from the rewinding station to the finishing station. Of course, when the current rewinding shaft reaches the finishing station and performs the finishing process, the next rewinding shaft also reaches the rewinding station and is driven to rotate by another flexible transmission member, so that the rewinding process and the finishing process can be carried out synchronously. It can be seen that the utility model solves the problem of loosening of the wide paper tape from the rewinding process to the finishing process while keeping the rewinding process and the finishing process synchronous and ensuring the rewinding efficiency.

[0009] A further solution is that the rewinding shaft transmission assembly also includes a first rotating shaft and a second rotating shaft, the first rotation driving unit drives the first rotating shaft to rotate, and the second rotation driving unit drives the second rotating shaft to rotate; the first rotating shaft is connected to a first driving wheel that rotates coaxially with the first rotating shaft and an idler wheel that is rotatable relative to the first rotating shaft, and the idler wheel on the first rotating shaft is in a second plane, and the second flexible transmission member cooperates with the idler wheel on the first rotating shaft; the second rotating shaft is connected to a second driving wheel that rotates coaxially with the second rotating shaft and an idler wheel that is rotatable relative to the second rotating shaft, and the idler wheel on the second rotating shaft is in the first plane, and the first flexible transmission member cooperates with the idler wheel on the second rotating shaft.

[0010] As can be seen from the above, under this setting, whether it is the first flexible transmission member or the second flexible transmission member, they all pass through the first rotating shaft, the rewinding shaft of the rewinding station, the rewinding shaft of the finishing station and the second rotating shaft in sequence. The trajectories of the first flexible transmission member and the second flexible transmission member, and the wrap angles between them and the driven wheels are more consistent. This setting can better ensure the consistency of the motion states of multiple rewinding shafts driven in rotation by the first flexible transmission member and the second flexible transmission member, and is also conducive to simplifying the design and subsequent maintenance processing.

[0011] A further solution is that in the first direction in which the rewinding station and the finishing station are arranged sequentially, the first rotating shaft and the second rotating shaft are respectively arranged on opposite sides of the turntable, and the first rotating shaft, the rewinding shaft of the rewinding station, the rewinding shaft of the finishing station and the second rotating shaft are arranged in a trapezoidal shape.

[0012] As can be seen from the above, this setting makes the arrangement of the first driving wheel and the second driving wheel more reasonable, and the wrap angles of the driven wheel at the rewinding station and the finishing station are more consistent.

[0013] Another further solution is that the first flexible transmission member and the second flexible transmission member can be passively moved during the rotation of the turntable; the rewinding shaft transmission assembly also includes a tensioning wheel group and a tensioning holding mechanism, the tensioning wheel group can move with the passive movement, and during the movement of the tensioning wheel, the tensioning holding mechanism applies a force to the tensioning wheel group so that the tensioning wheel group keeps the first flexible transmission member and the second flexible transmission member tensioned.

[0014] As can be seen from the above, if the flexible transmission member is tensioned by a fixed wheel set, the position of the flexible transmission member is fixed under the constraints of these fixed wheel sets. When the turntable rotates and drives the driven wheel to revolve, the flexible transmission member will restrict the driven wheel and then hinder the rotation of the turntable, which will affect both the turntable motor and the flexible transmission member. To this end, the utility model provides a nearly floating tensioning wheel. When the turntable rotates and the driven wheel revolves, it lifts the flexible transmission member. At the same time, the flexible transmission member generates corresponding passive movement at the tensioning wheel to adapt to the forced movement of being lifted. During the passive movement of the flexible transmission member, the tensioning wheel maintains tension on it. This arrangement eliminates the mutual influence between the flexible transmission member and the rotation of the turntable.

[0015] A further solution is that the rewinding station and the finishing station are arranged on the first side of the rotating axis of the turntable in a second direction perpendicular to the first direction; the rewinding shaft transmission assembly also includes a limiting wheel group, which is arranged on the second side in the second direction, and the limiting wheel group limits the first flexible transmission member and the part of the second flexible transmission member on the second side to a position kept at a distance from the rewinding shaft.

[0016] As can be seen from the above, since the turntable will drive the driven wheel to rotate between multiple positions, a large wrap angle between the flexible transmission member and the driven wheel may affect the smooth rotation of the turntable. Therefore, arranging both the first and second rotating shafts on the first side where the rewinding station and the finishing station are located can obtain a smaller wrap angle. However, under this arrangement, the first and second flexible transmission members cannot be supported on the second side and will collide with the driven wheel and the idler wheel on the rewinding shaft that reaches the second side, thereby affecting each other's movement. Therefore, the present invention considers arranging a limiting wheel set on the second side to limit the first and second flexible transmission members on the second side to a position spaced apart from the rewinding shaft to avoid collision.

[0017] A further solution is that, along the first direction, two sets of limiting wheel assemblies are respectively arranged on opposite sides of the turntable.

[0018] As can be seen from the above, if a set of limiting wheel groups is set up, it needs to be far enough away from the axis of the turntable in the second direction to achieve the above-mentioned spacing. When two sets of limiting wheel groups are arranged on opposite sides of the turntable, this setting can achieve the above-mentioned spacing while occupying less space in the second direction.

[0019] A further solution is that the first driving wheel and its coaxial idler wheel are configured as a tensioning wheel set; or, the second driving wheel and its coaxial idler wheel are configured as a tensioning wheel set; or, a group of limiting wheel sets are configured as a tensioning wheel set.

[0020] As can be seen from the above, in fact, except for the wheel set on the turntable, other wheel sets can be set as tensioning wheel sets to achieve the above-mentioned effect of eliminating the mutual influence between the turntable and the flexible transmission member, and can be selectively set according to actual conditions.

[0021] A further solution is that the tensioning and holding mechanism includes a cylinder and a swinging member, the cylinder includes a cylinder body and a telescopic rod, the cylinder body is swinging along the first axis, the swinging member is rotatably arranged along the second axis, the telescopic rod is hinged to the first swing arm of the swinging member, and the second swing arm of the swinging member is connected to the tensioning wheel group.

[0022] As can be seen from the above, this arrangement not only achieves translation of the tensioning wheel assembly, but also utilizes the cylinder to stably and reliably maintain the tensioning wheel assembly in the tensioning position.

[0023] Another further solution is that the turntable includes a disk body, and the rewinding shaft includes a matching section for matching with the winding core; in the axial direction of the turntable, the matching section is arranged on one side of the disk body, and the first plane and the second plane are both located on the other side of the disk body.

[0024] As can be seen from the above, under this setting, the rewinding shaft transmission components are concentrated on the back of the turntable, which is convenient for management and maintenance, and also avoids affecting the rewinding of materials.

[0025] The second object of the present invention is to provide a rewinding machine comprising the above-mentioned rewinding shaft transmission assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of the first embodiment of the rewinding shaft transmission assembly of the utility model from a first perspective.

[0027] Figure 2 This is a structural diagram of the first embodiment of the rewinding shaft transmission assembly of the utility model from the second perspective.

[0028] Figure 3 It is a plan view of the first embodiment of the rewinding shaft transmission assembly of the utility model in the first transmission state.

[0029] Figure 4 It is a plan view of the second transmission state of the first embodiment of the rewinding shaft transmission assembly of the present invention.

[0030] Figure 5 This is a schematic diagram of the middle state of the first embodiment of the rewinding shaft transmission assembly of the present invention.

[0031] Figure 6 It is a plan view of the second embodiment of the rewinding shaft transmission assembly of the present invention in the transmission state.

[0032] Figure 7 It is a plan view of the third embodiment of the rewinding shaft transmission assembly of the present invention in the transmission state.

[0033] Figure 8 It is a plan view of the fourth embodiment of the rewinding shaft transmission assembly of the present invention in the transmission state. DETAILED DESCRIPTION

[0034] First embodiment of the rewinding shaft transmission assembly

[0035] The rewinding machine of the present invention includes a rewinding shaft transmission assembly, see Figure 1 The rewinding shaft transmission assembly of this embodiment includes a turntable 1 and four rewinding shafts arranged in sequence along the circumferential direction of the turntable 1: a first rewinding shaft 21, a second rewinding shaft 22, a third rewinding shaft 23 and a fourth rewinding shaft 24 ( Figure 3As shown); the turntable 1 includes a disk body 10, and the four rewinding shafts each include a matching section 200 for matching with the winding core. In the axial direction of the rotation axis of the turntable 1 (the x-axis direction in the figure), the matching sections 200 of the four rewinding shafts are located on the surface side 101 of the disk body 10; and, under the rotation of the turntable 1, the matching sections 200 of the rewinding shafts can reach the rewinding station 110 or the finishing station 120, and when one rewinding shaft is at the rewinding station 110, the other rewinding shaft adjacent to the front in the rotation direction of the turntable 1 is at the finishing station 120, as shown. Figure 1 As shown, at this time, the first rewinding shaft 21 is at the finishing station 120 and the second rewinding shaft 22 is at the rewinding station 110.

[0036] Combine Figure 1 and Figure 2 The rewinding shaft transmission assembly of this embodiment also includes a first rotation drive unit 419, a second rotation drive unit 429, a first rotating shaft 41, a second rotating shaft 42, a first driving wheel 43, and a second driving wheel 46; it also includes a first flexible transmission member 31 and a second flexible transmission member 32; it also includes four driven wheels: a first driven wheel 51, a second driven wheel 54, a third driven wheel, and a fourth driven wheel; it also includes six idler wheels: a first idler wheel 52, a second idler wheel 53, a third idler wheel, a fourth idler wheel, a fifth idler wheel 44, and a sixth idler wheel 45. It also includes a set of limiting wheel groups 61, a set of tensioning wheel groups 62, and a tensioning holding mechanism 7 that drives the tensioning wheel groups 62. The above structures are all arranged on the back side 102 of the turntable 1 to facilitate unified management and maintenance. The back side 102 is opposite to the front side 101 in the axial direction of the rotation axis of the turntable 1. In this embodiment, the first flexible transmission member 31 and the second flexible transmission member 32 are both transmission belts, and the first driving wheel 43 , the second driving wheel 46 , all driven wheels and all idle wheels are pulleys.

[0037] See also Figure 1 The first rotation drive unit 419 and the second rotation drive unit 429 are both servo motors. The first rotation drive unit 419 and the second rotation drive unit 429 are fixedly mounted by a plate 49. The output shaft of the first rotation drive unit 419 rotates coaxially with the first driving shaft 41, and the output shaft of the second rotation drive unit 429 rotates coaxially with the second driving shaft 42. In this way, the first rotation drive unit 419 can drive the first rotating shaft 41 to rotate, and the second rotation drive unit 429 can drive the second rotating shaft 42 to rotate. The first rotating shaft 41 and the second rotating shaft 42 are both parallel to the rotating axis of the turntable 1.

[0038] The first driving wheel 43 and the fifth idler wheel 44 are respectively mounted on the first rotating shaft 41. The first driving wheel 43 rotates synchronously with the first rotating shaft 41, and the fifth idler wheel 44 can rotate relative to the first rotating shaft 41. The first driving wheel 43 and the first rotating shaft 41 can be connected by a key, and the fifth idler wheel 44 is rotatably connected to the first rotating shaft 41.

[0039] The second driving wheel 46 and the sixth idler wheel 45 are respectively mounted on the second rotating shaft 42. The second driving wheel 46 rotates synchronously with the second rotating shaft 42, and the sixth idler wheel 45 can rotate relative to the second rotating shaft 42. The second driving wheel 46 and the second rotating shaft 42 can be connected by a key, and the sixth idler wheel 45 is rotatably connected to the second rotating shaft 41.

[0040] The first flexible transmission member 31 is located in a first plane 1000, and the second flexible transmission member 32 is located in a second plane 2000. The driving and idler gears on the first and second rotating shafts 41 and 42 are installed in the opposite order, so that the sixth idler gear 45 on the second rotating shaft 42 and the first driving gear 43 on the first rotating shaft 41 are both located in the first plane 1000, while the fifth idler gear 44 on the first rotating shaft 41 and the second driving gear 46 on the second rotating shaft 42 are both located in the second plane 2000.

[0041] The first plane 1000 and the second plane 2000 are both perpendicular to the first rotation axis 41 and the second rotation axis 42, and the first plane 1000 and the second plane 2000 are both parallel to the first rotation axis 41 and the second rotation axis 42. Figure 1 In the planes defined by the z-axis and the y-axis, the first plane 1000 and the second plane 2000 are located at different positions in the x-axis direction. Figure 2 As shown, the sixth idler wheel 45 on the second rotating shaft 42 and the first driving wheel 43 on the first rotating shaft 41 are both engaged on the inner side of the first flexible transmission member 31, and the fifth idler wheel 44 on the first rotating shaft 41 and the second driving wheel 46 on the second rotating shaft 42 are both engaged on the inner side of the second flexible transmission member 32. In this way, the first rotation drive unit 419 can drive the first flexible transmission member 31 to operate, and the second rotation drive unit 429 can drive the second flexible transmission member 32 to operate.

[0042] Furthermore, each rewinding shaft is connected to a driven wheel that rotates coaxially with the rewinding shaft and an idler wheel that is rotatable relative to the rewinding shaft. Thus, the driven wheel on one rewinding shaft can drive the rewinding shaft to rotate, while the idler wheel on another rewinding shaft cannot. On each rewinding shaft, one of the driving wheel and the idler wheel is arranged in a first plane 1000, and the other of the driving wheel and the idler wheel is arranged in a second plane 2000. Furthermore, between any two adjacent rewinding shafts, the driven wheel of one rewinding shaft and the idler wheel of the other rewinding shaft are in the same plane.

[0043] Specifically, combined Figure 3The schematic plan view shows the flexible transmission component structures that were originally on the first plane 1000 and the second plane 2000 and originally overlapped and could not be observed at the same time. The structure on the second plane 2000 is enlarged to avoid overlapping with the structure on the first plane 1000. Figure 3 The first transmission state shown is a state in which the first rewinding shaft 21 is in the rewinding state and the second rewinding shaft 22 is in the rewinding state.

[0044] In the figure, all idler wheels are represented by black lines, the first flexible transmission member 31, the first driving wheel 43 and the driven wheel in the first plane 1000 are represented by red lines, and the second flexible transmission member 32, the second driving wheel 46 and the driven wheel in the second plane 2000 are represented by blue lines. Figure 4 and Figure 6 Adopt and Figure 3 Same presentation method.

[0045] In this embodiment, the first rewinding shaft 21 is connected to a first driven wheel 51 and a first idler wheel 52, the second rewinding shaft 22 is connected to a second idler wheel 53 and a second driven wheel 54, and the third rewinding shaft 23 is connected to a third driven wheel 55 ( Figure 4 The fourth rewinding shaft 24 is connected to a fourth idler wheel and a fourth driven wheel.

[0046] Among them, the first driven wheel 51, the second idler wheel 53, the third driven wheel 55 and the fourth idler wheel are arranged on the first plane 1000. When any of the first driven wheel 51, the second idler wheel 53, the third driven wheel 55 and the fourth idler wheel reaches the rewinding station 110, the finishing station 120 or the process position between the rewinding station 110 and the finishing station 120, it will engage with the first flexible transmission member 31 on the first plane 1000 to be driven. Based on the difference in the connection relationship between the driven wheel and the idler wheel and the rewinding shaft, only the first rewinding shaft 21 where the first driven wheel 51 is located and the third rewinding shaft 23 where the third driven wheel 55 is located will be driven to rotate by the first flexible transmission member 31.

[0047] Similarly, the first idler wheel 52, the second driven wheel 54, the third idler wheel and the fourth driven wheel are arranged on the second plane 2000. When any of the first idler wheel 52, the second driven wheel 54, the third idler wheel and the fourth driven wheel reaches the rewinding station 110, the finishing station 120 or a process position between the rewinding station 110 and the finishing station 120, it will engage with the second flexible transmission member 32 also on the second plane 2000 to be driven. Due to the difference in the connection relationship between the driven wheel and the idler wheel and the rewinding shaft, only the second rewinding shaft 22 where the second driven wheel 54 is located and the fourth rewinding shaft 24 where the fourth driven wheel is located will be driven by the second flexible transmission member 32.

[0048] Continue to see Figures 1 to 3 In addition, a set of limiting wheel groups 61 and a set of tensioning wheel groups 62 are both engaged with the inner circumference of the first flexible transmission member 31 and the inner circumference of the second flexible transmission member 32. The limiting wheel group 61 and the tensioning wheel group 62 both include two pulleys that are arranged in sequence in the axial direction and can rotate relative to each other. Therefore, the limiting wheel group 61 and the tensioning wheel group 62 can simultaneously cooperate with the first flexible transmission member 31 and the second flexible transmission member 32 in transmission without affecting each other.

[0049] In fact, the tensioning wheel group 62 also serves as the limiting wheel group 61 of the utility model. The limiting wheel group 61 and the tensioning wheel group 62 are both arranged at a suitable position to limit the first flexible transmission member 31 and the second flexible transmission member 32 to a position to avoid collision with the rewinding shaft. In particular, the tensioning wheel group 62 can move in a controllable manner and has the functions of tensioning and relaxing at the same time.

[0050] Combine Figure 2 The tensioning and holding mechanism 7 includes a cylinder 71 and a swinging member 72. The cylinder 71 includes a cylinder body 711 and a telescopic rod 712. The cylinder body 711 is swingingly arranged along the first axis 701, and the swinging member 72 is rotatingly arranged along the second axis 702. The first axis 701 and the second axis 702 are both parallel to the rotation axis of the turntable 1; the telescopic rod 712 is hinged to the first swing arm 721 of the swinging member 72, and the second swing arm 722 of the swinging member 72 is connected to the tensioning wheel group 62.

[0051] The tensioning wheel assembly 62 can swing around the second axis 702 under the connection of the swing member 72; and, under the action of the telescopic rod 712 of the cylinder 71, the swing member 72 is maintained in a position where the tensioning wheel assembly 62 abuts and tensions the first flexible transmission member 31 and the second flexible transmission member 32.

[0052] Combine Figure 3 and Figure 5 , Figure 4 The second transmission state shown is that the first rewinding shaft 21 has finished winding, the second rewinding shaft 22 is in the process of winding, and the third rewinding shaft 23 is in the process of rewinding. Figure 5 Then Figure 3 The first transmission state and Figure 4 A schematic diagram of an intermediate state between the second transmission state is shown, Figure 5 Only the structure in the second plane 2000 is shown. During the rotation process of the turntable 1 transferring the second rewinding shaft 22 from the rewinding station 110 to the finishing station 120, as shown in FIG. Figure 5As shown, when the turntable 1 rotates 45 degrees, the first flexible transmission member 31 (not shown in the figure) and the second flexible transmission member 32 are forced to move at the first position 328 where the second rewinding shaft 22 is located, and move from the straight dotted line position shown in the figure to the curved solid line position, so that the length of the first flexible transmission member 31 (not shown in the figure) and the second flexible transmission member 32 at the first position 328 increases.

[0053] The tensioning wheel assembly 62 of the present invention is movable, and this configuration provides space for the flexible transmission member to adapt and adjust. Therefore, to accommodate the increase in length at the first position 328, the first flexible transmission member 31 (not shown) and the second flexible transmission member 32 at the second position 329 where the tensioning wheel assembly 62 is located undergo a relatively passive inward movement, which reduces the length of this position. Naturally, the tensioning wheel assembly 62 moves with this passive inward movement. Because the cylinder 71 maintains its force output, the tensioning holding mechanism 7 applies a force to the tensioning wheel assembly 62 during the movement of the tensioning wheel, causing the tensioning wheel assembly 62 to maintain tension on the first flexible transmission member 31 and the second flexible transmission member 32.

[0054] Under this setting, no matter what action state the turntable 1 is in or what state the flexible transmission member is in, the tensioning effect is guaranteed, and the driving wheel, flexible transmission member and driven wheel maintain a stable and reliable transmission relationship, ensuring that each rewinding shaft can be accurately driven to maintain a rotating state during the process of being transferred from the rewinding station 110 to the winding station 120, thereby solving the problem of loose wide paper rolls.

[0055] See also Figure 3 In this embodiment, the rewinding station 110 and the finishing station 120 are sequentially arranged in a first direction (the y-axis direction in the figure), and the first rotating shaft 41 and the second rotating shaft 42 are respectively arranged on opposite sides of the turntable 1 (the left and right sides in the figure). In this way, the first rotating shaft 41, the rewinding shaft of the rewinding station 110, the rewinding shaft of the finishing station 120, and the second rotating shaft 42 are arranged in a trapezoidal shape.

[0056] In a second direction (z-axis direction) perpendicular to the first direction, the rewinding station 110, the finishing station 120, the first rotating shaft 41, and the second rotating shaft 42 are all disposed on the first side (the upper side in the figure) of the rotation axis of the turntable 1. In this embodiment, the limiting wheel assembly 61 and the tensioning wheel assembly 62 are not only disposed on the second side (the lower side in the figure) in the second direction, but are also disposed on opposite sides (the left and right sides in the figure) in the first direction. The limiting wheel assembly 61 and the tensioning wheel assembly 62 constrain the portion 319 of the first flexible transmission member 31 on the second side and the portion 329 of the second flexible transmission member 32 on the second side to a position spaced apart from the rewinding shaft on the second side.

[0057] See also Figure 2 and Figure 3 At this time, the first rewinding shaft 21 is in the finishing station 120 and the second rewinding shaft 22 is in the rewinding station 110. At this time, the first flexible transmission member 31, the first driven wheel 51 and the first rewinding shaft 21 are driven in sequence, so that the first rewinding shaft 21 can rotate, while the transmission of the second flexible transmission member 32 stops at the first idler wheel 52 and cannot drive the first rewinding shaft 21. Similarly, at this time, the second flexible transmission member 32, the second driven wheel 54 and the second rewinding shaft 22 are driven in sequence, so that the second rewinding shaft 22 can rotate, while the transmission of the first flexible transmission member 31 stops at the second idler wheel 53 and cannot drive the second rewinding shaft 22.

[0058] See also Figures 3 to 5 , controls the turntable 1 to rotate 90 degrees. At the same time, the cylinder 71 synchronously controls the tensioning wheel group 62 to keep the flexible transmission member tensioned. The turntable 1 drives the second rewinding shaft 22 to move from the rewinding station 110 to the finishing station 120, and the third rewinding shaft 23 moves to the rewinding station 110, while the first rewinding shaft 21 leaves the finishing station 120 and reaches the second side.

[0059] At this time, the second rewinding shaft 22 is still driven to rotate by the second flexible transmission member 32. In fact, during the process of the second rewinding shaft 22 moving from the rewinding station 110 to the finishing station 120, the second flexible transmission member 32 keeps running, and the second driven wheel 54 and the second flexible transmission member 32 keep engaging. Therefore, during the process of moving from the rewinding station 110 to the finishing station 120, the second flexible transmission member 32 keeps transmitting the second rewinding shaft 22, and the second rewinding shaft 22 keeps rotating. Therefore, the second rewinding shaft 22 also keeps rotating from the rewinding station 110 to the finishing station 120 to prevent the wide paper tape from loosening.

[0060] In addition, at this time, the third rewinding shaft 23 is driven to rotate by the first flexible transmission member 31. The rewinding shafts on the rewinding station 110 and the finishing station 120 are driven by different flexible transmission members respectively, so that the rewinding shafts on the two stations can perform rewinding and finishing work respectively without affecting each other.

[0061] In addition, the rewinder of this embodiment is a vertical rewinder, that is, the turntable 1 is upright and the rotation axis of the turntable 1 is horizontal. The vertical rewinder is beneficial for preventing the wide paper roll from loosening along the axial direction.

[0062] The rewinding shaft transmission assembly further includes a third rotational drive unit 19, a gear 18, and a ring gear 17. The third rotational drive unit 19 is a motor, and the gear 18 is connected to the output shaft of the third rotational drive unit 19. The ring gear 17 is coaxially fixed to the turntable 1 and located on the back side 102 of the turntable body 10. The third rotational drive unit 19 drives the gear 18 to rotate, and the gear 18 meshes with the ring gear 17 to drive the rotation of the turntable 1. Conventional turntables 1 are typically driven by a motor and a gear set, typically positioned relatively close to the rotation axis of the turntable 1. However, when the dual-plane flexible transmission assembly of the present invention is used as the rewinding shaft transmission assembly, the existing motor and gear set structure would interfere with the layout of the structures on the first plane 1000 and the second plane 2000. Therefore, the ring gear 17 of the present invention is designed to position the third rotational drive unit 19 away from the axis of the turntable 1, leaving the back side 102 of the turntable 1 free to facilitate the layout of the rewinding shaft transmission assembly of the present invention.

[0063] Second embodiment of the rewinding shaft transmission assembly

[0064] See also Figure 6 and compare Figure 3 The flexible transmission member of the first embodiment meshes with six pulleys. Unlike the first embodiment, in this embodiment, the fifth idler pulley is not mounted on the first rotating shaft 41, and the sixth idler pulley is not connected to the second rotating shaft 42. The first flexible transmission member 31 meshes only with the first driving pulley 43, a driven pulley, an idler pulley, and two limiting pulleys, a total of five pulleys. The second flexible transmission member 32 meshes only with the second driving pulley 46, a driven pulley, an idler pulley, and two limiting pulleys, a total of five pulleys.

[0065] The third embodiment of the rewinding shaft transmission assembly

[0066] See also Figure 7 Different from the first embodiment, this embodiment only provides one set of tensioning wheel group 63 and does not provide a fixed limiting wheel group. Of course, the tensioning wheel group 63 itself is also a set of limiting wheel group.

[0067] Fourth embodiment of the rewinding shaft transmission assembly

[0068] See also Figure 8 Different from the first embodiment, this embodiment does not provide a limiting wheel set, and the two flexible transmission members are only engaged with one driving wheel, one driven wheel and two idler wheels.

[0069] Furthermore, in this setting, in order to avoid collision between the flexible transmission member and the rewinding shaft, the rewinding station 81 and the finishing station 82 are arranged on the first side 801 in the second direction. Then, the first rotating shaft 83 and the second rotating shaft 84 should be arranged on the second side 802 in the second direction, and the first rotating shaft 83 and the second rotating shaft 84 are arranged at a position farther away from the first side 801 than the rewinding shaft 85 on the second side 202.

[0070] Furthermore, in this embodiment, the coaxial driving wheel and the idler wheel on the second rotating shaft 84 are arranged as the tensioning wheel assembly of this utility model.

[0071] In other embodiments, the first flexible transmission member and the second flexible transmission member are transmission chains, and the first driving wheel, the second driving wheel, the driven wheel and the idler wheel are all sprockets, and the transmission ratio is accurate and there is no slip.

[0072] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rewinding shaft transmission assembly, comprising a turntable and a plurality of rotating rewinding shafts arranged at circumferential positions of the turntable, wherein when one rewinding shaft is in a rewinding position, another adjacent rewinding shaft is in a finishing position; The rewinding shaft transmission assembly further includes a first rotation drive unit and a second rotation drive unit; Its characteristics are: The rewinding shaft transmission assembly further includes a first driving wheel and a first flexible transmission member provided on a first plane, and a second driving wheel and a second flexible transmission member provided on a second plane, wherein the first rotation driving unit, the first driving wheel and the first flexible transmission member are sequentially coupled in transmission, and the second rotation driving unit, the second driving wheel and the second flexible transmission member are sequentially coupled in transmission; The first flexible transmission member and the second flexible transmission member are both surrounded by the plurality of rewinding shafts, and the first driving wheel and the second driving wheel are both arranged on the outer periphery of the plurality of rewinding shafts; The rewinding shaft transmission assembly further includes a driven wheel and an idler wheel, each of the rewinding shafts is connected to a driven wheel that rotates coaxially with the rewinding shaft and an idler wheel that is rotatable relative to the rewinding shaft, and on each of the rewinding shafts, one of the driving wheel and the idler wheel is arranged in a first plane, and the other of the driving wheel and the idler wheel is arranged in a second plane; There are a plurality of rewinding shafts provided on the turntable, and between any two adjacent rewinding shafts, the driven wheel of one rewinding shaft and the idler wheel of the other rewinding shaft are in the same plane; The first flexible transmission member and the second flexible transmission member can both drive the driven wheel and the rewinding shaft on which they are located, which are in the same plane as the driven wheel and are in the rewinding station, the finishing station, and the process position between the rewinding station and the finishing station, to rotate.

2. The rewinding shaft transmission assembly according to claim 1, characterized in that: The rewinding shaft transmission assembly further includes a first rotating shaft and a second rotating shaft, wherein the first rotating drive unit drives the first rotating shaft to rotate, and the second rotating drive unit drives the second rotating shaft to rotate; The first rotating shaft is connected to the first driving wheel that rotates coaxially with the first rotating shaft and the idler wheel that is rotatable relative to the first rotating shaft, and the idler wheel on the first rotating shaft is located in the second plane, and the second flexible transmission member cooperates with the idler wheel on the first rotating shaft; The second rotating shaft is connected to the second driving wheel that rotates coaxially with the second rotating shaft and the idler wheel that is rotatable relative to the second rotating shaft, and the idler wheel on the second rotating shaft is in the first plane, and the first flexible transmission member cooperates with the idler wheel on the second rotating shaft.

3. The rewinding shaft transmission assembly according to claim 2, characterized in that: In the first direction in which the rewinding station and the finishing station are arranged sequentially, the first rotating shaft and the second rotating shaft are respectively arranged on opposite sides of the turntable, and the first rotating shaft, the rewinding shaft of the rewinding station, the rewinding shaft of the finishing station and the second rotating shaft are arranged in a trapezoidal shape.

4. The rewinding shaft transmission assembly according to claim 3, characterized in that: The first flexible transmission member and the second flexible transmission member may be passively moved during the rotation of the turntable; The rewinding shaft transmission assembly also includes a tensioning wheel group and a tensioning holding mechanism. The tensioning wheel group can move with the passive movement. During the movement of the tensioning wheel, the tensioning holding mechanism applies a force to the tensioning wheel group so that the tensioning wheel group keeps tensioning the first flexible transmission member and the second flexible transmission member.

5. The rewinding shaft transmission assembly according to claim 4, characterized in that: In a second direction perpendicular to the first direction, the rewinding station and the finishing station are arranged on a first side of the rotation axis of the turntable; The rewinding shaft transmission assembly further includes a limiting wheel set, which is arranged on the second side in the second direction, and the limiting wheel set limits the first flexible transmission member and the portion of the second flexible transmission member on the second side to a position spaced apart from the rewinding shaft.

6. The rewinding shaft transmission assembly according to claim 5, characterized in that: In the first direction, the two groups of limiting wheel groups are respectively arranged on opposite sides of the turntable.

7. The rewinding shaft transmission assembly according to claim 6, characterized in that: The first driving wheel and the coaxial idler wheel thereof are configured as the tensioning wheel set; or, The second driving wheel and the coaxial idler wheel thereof are configured as the tensioning wheel set; or, A group of the limiting wheel groups is configured as the tensioning wheel group.

8. The rewinding shaft transmission assembly according to any one of claims 4 to 7, characterized in that: The tensioning and holding mechanism includes a cylinder and a swinging member, the cylinder includes a cylinder body and a telescopic rod, the cylinder body is swinging along a first axis, the swinging member is rotatably arranged along a second axis, the telescopic rod is hinged to the first swing arm of the swinging member, and the second swing arm of the swinging member is connected to the tensioning wheel group.

9. The rewinding shaft transmission assembly according to any one of claims 1 to 7, characterized in that: The turntable includes a disc body, and the rewinding shaft includes a matching section for matching with the winding core; In the axial direction of the turntable, the matching section is arranged on one side of the disk body, and the first plane and the second plane are both located on the other side of the disk body.

10. Rewinding machine, characterized in that, The invention comprises the rewinding shaft transmission assembly according to any one of claims 1 to 9.

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