Shaftless winding and unwinding mechanism

Abstract

The utility model relates to the technical field of winding and unwinding, and provides a shaftless winding and unwinding mechanism which comprises two side shells, first fixing rods are fixedly connected to the inner sides of the two side shells, rotating discs are arranged on one sides of the side shells, and two placing rods are fixedly connected to the inner sides of the two rotating discs. Two first sliding rails are fixedly connected to one side of the placing rod, first sliding blocks are movably embedded in the outer surfaces of the first sliding rails, a connecting rod is fixedly connected to one sides of the two first sliding blocks, a connecting rod is fixedly connected to one side of the fixing rod, and an inner threaded sleeve is fixedly connected to the end, away from the fixing rod, of the connecting rod; the inner surfaces of the two inner threaded sleeves are in threaded connection with threaded rods. The device is provided with an opposite clamping paper roll fixing structure, the air expansion shaft does not need to be detached, then the paper core is arranged on the air expansion shaft in a sleeving mode, and then the air expansion shaft is installed on the winding and unwinding air expansion shaft chuck, so that the labor cost is greatly reduced, the material roll replacement time is short, and the operation steps are simple.

Description

Technical Field

[0001] The utility model relates to the technical field of winding and unwinding, in particular to a shaftless winding and unwinding mechanism. Background Art

[0002] The traditional winding and unwinding method on the market is the combination of an air shaft and a chuck. The traditional operation method is to remove the air shaft, then put the paper core on the air shaft and install it on the winding and unwinding air shaft chuck, which greatly increases the labor cost, takes a long time to replace the material roll, and has complex operation steps.

[0003] However, in the prior art, for example, Chinese Patent Publication No.: CN218975529U, "A shaftless turret winding and unwinding mechanism and a lithium battery manufacturing device", this utility model discloses a shaftless turret winding and unwinding mechanism and a lithium battery manufacturing device. The shaftless turret winding and unwinding mechanism includes a turret device, a horizontal moving device, and a cutter swing arm device; the turret device includes a base, a first winding and unwinding assembly, a second winding and unwinding assembly, a first rotation driving unit, and a second rotation driving unit; the horizontal moving device includes a fixed frame located above the turret device, two mounting plates arranged front and rear relative to each other, and a moving driving assembly; the cutter swing arm device is located above the turret device and includes a first cutter swing arm assembly, a second cutter swing arm assembly, a first cutter swing arm driving assembly, and a second cutter swing arm driving assembly. This utility model can avoid damaging the pole piece during the roll change process and improve the production efficiency. The same invention has been applied for an invention patent on the same day.

[0004] However, this device does not have a structure for clamping the paper roll in opposite directions for fixation. It is necessary to remove the air shaft, then put the paper core on the air shaft, and then install it on the winding and unwinding air shaft chuck, which greatly increases the labor cost, takes a long time to replace the material roll, and has complex operation steps. The device does not have a structure for adjusting the discharge distance, and cannot adjust the discharge distance according to the density and material of the material used, and tension and stretch the discharge, resulting in easy jamming of the discharge and inconvenient use. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art, that is, it is necessary to remove the air shaft, then put the paper core on the air shaft, and then install it on the winding and unwinding air shaft chuck, which greatly increases the labor cost, takes a long time to replace the material roll, has complex operation steps, cannot adjust the discharge distance according to the density and material of the material used, and tension and stretch the discharge, resulting in easy jamming of the discharge and inconvenient use.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A shaftless winding and unwinding mechanism includes two side shells. A first fixing rod is fixedly connected to the inner sides of the two side shells. A turntable is arranged on one side of the side shell. Two placing rods are fixedly connected to the inner sides of the two turntables. Two first slide rails are fixedly connected to one side of the placing rod. The outer surfaces of the first slide rails are movably embedded with first sliders. One side of the two first sliders is fixedly connected with a connecting rod. One side of the connecting rod is fixedly connected with a connecting bar. One end of the connecting bar far from the connecting rod is fixedly connected with an internal thread sleeve. The inner surfaces of the two internal thread sleeves are threadedly connected with a threaded rod. The thread rotation directions on both sides of the threaded rod are opposite. The outer surface of the threaded rod is rotatably connected to the inner sides of the two turntables and extends out at one end. The first slider connected by the connecting bar and the connecting rod will move along the direction of the first slide rail. Among them, the first slide rail is fixed to the inner sides of the two turntables through the placing rod.

[0007] As a preferred embodiment, an air expandable half shaft is arranged on one side of the connecting rod. The outer surfaces of the two air expandable half shafts are movably sleeved with paper tubes. When the air expandable half shafts following the connecting rod move closer to each other, they will be embedded into the interior of the paper tubes.

[0008] As a preferred embodiment, a plurality of first motors are fixedly connected to the side of the first fixing rod close to the turntable. The output ends of the first motors are fixedly connected with friction wheels. The outer surfaces of the plurality of friction wheels are arranged on the outer surface of the turntable. After the first motors are powered on, they will drive the friction wheels to rotate, and the two turntables and the internal structures will also start to rotate.

[0009] As a preferred embodiment, two bearing plates are arranged on one side of the side shell. An extension rod is fixedly connected to one side of the bearing plate. A second slide rail is fixedly connected to the top of the extension rod. Among them, the second slide rail is fixed above the extension rod.

[0010] As a preferred embodiment, the outer surface of the second slide rail is movably embedded with a second slider. The top of the second slider is fixedly connected with a moving plate. A rack is fixedly connected to the bottom of the moving plate. The second slider under the moving plate can move along the direction of the second slide rail.

[0011] As a preferred embodiment, a fixed sleeve is fixedly connected to the side of the bearing plate far from the extension rod. A second motor is fixedly embedded in the inner surface of the fixed sleeve. The output end of the second motor is rotatably connected to the inside of the bearing plate. The second motor is connected to one side of the bearing plate through the fixed sleeve.

[0012] As a preferred embodiment, a gear is fixedly connected to the output end of the second motor. The outer surface of the gear is meshed and connected to the bottom of a rack. Under the meshing action of the gear on the rack, the second slider under the moving plate moves along the direction of the second slide rail.

[0013] As a preferred embodiment, a second fixed rod is fixedly connected to the inner sides of the two moving plates. A cooling roller is rotatably connected to the inner sides of the two moving plates and extends out at one end. A rotary joint is fixedly connected to the extended end of the cooling roller. The two moving plates are fixedly connected through the second fixed rod.

[0014] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0015] 1. In the present utility model, the device is provided with an opposing clamping paper roll fixing structure, which eliminates the need to remove the air shaft, then put the paper core on the air shaft, and then install it on the air shaft chuck of the winding and unwinding device. This greatly reduces the labor cost, shortens the time for replacing the material roll, and simplifies the operation steps.

[0016] 2. In the present utility model, the device is provided with a discharge distance adjustment structure, which can adjust the discharge distance according to the density and material of the used materials, and tension and stretch the discharge to avoid jams during discharge, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 1 is a three-dimensional structural diagram of a shaftless winding and unwinding mechanism provided by the present utility model;

[0018] Figure 2 FIG. 2 is a side structural diagram of a shaftless winding and unwinding mechanism provided by the present utility model;

[0019] Figure 3 FIG. 3 is a cross-sectional structural diagram of a shaftless winding and unwinding mechanism provided by the present utility model;

[0020] Figure 4 FIG. 4 is a Figure 3 magnified structural diagram of A in a shaftless winding and unwinding mechanism provided by the present utility model;

[0021] Figure 5 FIG. 5 is a Figure 1 magnified structural diagram of B in a shaftless winding and unwinding mechanism provided by the present utility model.

[0022] LEGEND DESCRIPTION:

[0023] 1. Side shell; 2. First fixing rod; 3. Turntable; 4. Placing rod; 5. First slide rail; 6. First slider; 7. Connecting rod; 8. Link rod; 9. Internal thread sleeve; 10. Threaded rod; 11. Air-expanded half shaft; 12. Paper tube; 13. First motor; 14. Friction wheel; 15. Bearing plate; 16. Extended rod; 17. Second slide rail; 18. Second slider; 19. Moving plate; 20. Rack; 21. Fixed sleeve; 22. Second motor; 23. Gear; 24. Second fixing rod; 25. Cooling roller; 26. Rotary joint. Detailed implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution: a shaftless winding and unwinding mechanism, including two side shells 1. The inner sides of the two side shells 1 are fixedly connected with a first fixing rod 2. A turntable 3 is arranged on one side of the side shell 1. The inner sides of the two turntables 3 are fixedly connected with two placing rods 4. Two first slide rails 5 are fixedly connected to one side of the placing rod 4. The outer surface of the first slide rail 5 is movably embedded with a first slider 6. A connecting rod 7 is fixedly connected to one side of the two first sliders 6. A link rod 8 is fixedly connected to one side of the connecting rod 7. The end of the link rod 8 far from the connecting rod 7 is fixedly connected with an internal thread sleeve 9. The inner surfaces of the two internal thread sleeves 9 are threadedly connected with a threaded rod 10. The thread rotation directions on both sides of the threaded rod 10 are opposite. The outer surface of the threaded rod 10 is rotatably connected to the inner sides of the two turntables 3 and extends out at one end. Rotating the thread will drive the internal thread sleeve 9. Because the thread rotation directions on both sides of the threaded rod 10 are opposite, the two internal thread sleeves 9 move in opposite directions.

[0026] As Figures 1-5 shown, an air-expanded half shaft 11 is arranged on one side of the connecting rod 7. The outer surfaces of the two air-expanded half shafts 11 are movably sleeved with a paper tube 12. When the air-expanded half shafts 11 moving with the connecting rod 7 approach each other, they will be embedded into the inside of the paper tube 12.

[0027] As Figures 1-5 shown, a plurality of first motors 13 are fixedly connected to the side of the first fixing rod 2 close to the turntable 3. The output end of the first motor 13 is fixedly connected with a friction wheel 14. The outer surfaces of the plurality of friction wheels 14 are arranged on the outer surface of the turntable 3. After the first motor 13 is powered on, it will drive the friction wheel 14 to rotate, and make the two turntables 3 and the internal structures start to rotate.

[0028] As shown Figures 1-5 in the figure, two bearing plates 15 are arranged on one side of the side shell 1. One side of the bearing plate 15 is fixedly connected with an extension rod 16, and the top of the extension rod 16 is fixedly connected with a second slide rail 17, wherein the second slide rail 17 is fixed above the extension rod 16.

[0029] As shown Figures 1-5 in the figure, a second slider 18 is movably embedded on the outer surface of the second slide rail 17. The top of the second slider 18 is fixedly connected with a moving plate 19. The bottom of the moving plate 19 is fixedly connected with a rack 20. The second slider 18 under the moving plate 19 can move along the direction of the second slide rail 17.

[0030] As shown Figures 1-5 in the figure, a fixed sleeve 21 is fixedly connected to the side of the bearing plate 15 away from the extension rod 16. A second motor 22 is fixedly embedded on the inner surface of the fixed sleeve 21. The output end of the second motor 22 is rotatably connected inside the bearing plate 15. After the second motor 22 is powered on, it will drive the gear 23 to rotate.

[0031] As shown Figures 1-5 in the figure, the output end of the second motor 22 is fixedly connected with a gear 23. The outer surface of the gear 23 is meshed with the bottom of the rack 20. Under the meshing action of the gear 23 on the rack 20, the second slider 18 under the moving plate 19 moves along the direction of the second slide rail 17.

[0032] As shown Figures 1-5 in the figure, the inner sides of the two moving plates 19 are fixedly connected with a second fixed rod 24. A cooling roller 25 is rotatably connected to the inner sides of the two moving plates 19 and extends out at one end. One end of the cooling roller 25 extending out is fixedly connected with a rotary joint 26. The cooling roller 25 can be connected to a water pipe through the rotary joint 26 to cool the outer surface of the cooling roller 25 and the discharged material.

[0033] Working principle: First, place the paper tube 12 between the two air-expanding half shafts 11, and then rotate the threaded rod 10 through the motor component. The rotating thread will drive the internal threaded sleeve 9. Since the thread rotation directions on both sides of the threaded rod 10 are opposite, the two internal threaded sleeves 9 move in opposite directions. The first slider 6 connected by the connecting rod 8 and the connecting rod 7 will move along the direction of the first slide rail 5. The first slide rail 5 is fixed inside the two turntables 3 through the placing rod 4. When the air-expanding half shafts 11 following the connecting rod 7 move closer to each other, they will be embedded into the inside of the paper tube 12. The two side shells 1 are fixed by the first fixing rod 2. Start the external power supply of the first motor 13 on the side shell 1. The model of the first motor 13: DOY106, rated power: 750W. After the first motor 13 is powered on, it will drive the friction wheel 14 to rotate, and the two turntables 3 and the internal structure will also start to rotate. Then start the external power supply of the second motor 22. The second motor 22 is connected to one side of the bearing plate 15 through the fixed sleeve 21. The model of the second motor 22: gjd35, rated power: 35W. After the second motor 22 is powered on, it will drive the gear 23 to rotate. Under the meshing action of the gear 23 on the rack 20, the second slider 18 under the moving plate 19 will move along the direction of the second slide rail 17. The second slide rail 17 is fixed above the extension rod 16. When the moving plate 19 and the internal structure move, the discharging distance of the device. The cooling roller 25 can be connected to the water pipe through the rotary joint 26 to cool the outer surface of the cooling roller 25 and the discharged material. The two moving plates 19 are fixedly connected by the second fixing rod 24.

[0034] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A shaftless rewinding and unwinding mechanism, characterized in that, It includes two side shells (1). A first fixing rod (2) is fixedly connected to the inner sides of the two side shells (1). A turntable (3) is arranged on one side of the side shell (1). Two placing rods (4) are fixedly connected to the inner sides of the two turntables (3). Two first sliding rails (5) are fixedly connected to one side of the placing rod (4). A first slider (6) is movably embedded on the outer surface of the first sliding rail (5). A connecting rod (7) is fixedly connected to one side of the two first sliders (6). A connecting rod (8) is fixedly connected to one side of the connecting rod (7). An internally threaded sleeve (9) is fixedly connected to the end of the connecting rod (8) away from the connecting rod (7). A threaded rod (10) is threadedly connected to the inner surfaces of the two internally threaded sleeves (9). The threaded rotation directions on both sides of the threaded rod (10) are opposite. The outer surface of the threaded rod (10) is rotatably connected to the inner sides of the two turntables (3) and extends out at one end.

2. The shaftless rewinding and unreeling mechanism according to claim 1, wherein: An air-expanded half shaft (11) is arranged on one side of the connecting rod (7). A paper tube (12) is movably sleeved on the outer surfaces of the two air-expanded half shafts (11).

3. The shaftless rewinding and unreeling mechanism according to claim 1, characterized in that: A plurality of first motors (13) are fixedly connected to the side of the first fixing rod (2) close to the turntable (3). A friction wheel (14) is fixedly connected to the output end of the first motor (13). The outer surfaces of the plurality of friction wheels (14) are arranged on the outer surface of the turntable (3).

4. The shaftless rewinding and unreeling mechanism according to claim 1, wherein: Two bearing plates (15) are arranged on one side of the side shell (1). An extension rod (16) is fixedly connected to one side of the bearing plate (15). A second sliding rail (17) is fixedly connected to the top of the extension rod (16).

5. The shaftless rewinding and unreeling mechanism according to claim 4, characterized in that: A second slider (18) is movably embedded on the outer surface of the second sliding rail (17). A moving plate (19) is fixedly connected to the top of the second slider (18). A rack (20) is fixedly connected to the bottom of the moving plate (19).

6. The shaftless unwinding and rewinding mechanism according to claim 4, wherein: A fixed sleeve (21) is fixedly connected to the side of the bearing plate (15) away from the extension rod (16). A second motor (22) is fixedly embedded in the inner surface of the fixed sleeve (21). The output end of the second motor (22) is rotatably connected inside the bearing plate (15).

7. The shaftless rewinding and unreeling mechanism according to claim 6, characterized in that: A gear (23) is fixedly connected to the output end of the second motor (22). The outer surface of the gear (23) is meshed with the bottom of the rack (20).

8. The shaftless rewinding and unreeling mechanism according to claim 5, characterized in that: A second fixing rod (24) is fixedly connected to the inner sides of the two moving plates (19). A cooling roller (25) is rotatably connected to the inner sides of the two moving plates (19) and extends out at one end. A rotary joint (26) is fixedly connected to the end of the cooling roller (25) that extends out.

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