A paper rewinding mechanism of a rewinder

Abstract

The utility model discloses a paper rewinding mechanism of rewinding machine, including rewinding frame, the middle part swing joint of rewinding frame has rewinding drum, still include outer support subassembly and drive assembly, outer support subassembly: it includes collection and binds the storehouse, drive shaft, pivot, outer support rod and outer support wheel, the inside of collection and binds the storehouse to set up in the inside of rewinding drum, the inside swing joint of collection and binds the storehouse to have drive shaft, and the front end of drive shaft extends to the front side of rewinding drum, the inside swing joint of collection and binds the storehouse to have the pivot of symmetrical distribution, and pivot all are with drive shaft cooperation installation, and the middle part all is fixedly connected with outer support rod of pivot, and the one end all swing joint has outer support wheel with outer support rod away from the center of rewinding drum, and the outer camber of outer support wheel all is provided with frosted surface, the paper rewinding mechanism of this rewinding machine can realize the stable clamping of the special paper supporting cylinder of different inside diameter, and is convenient for the installation and dismounting of special paper supporting cylinder, and the special paper rewinding adaptation range of rewinding machine is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of specialty paper production technology, specifically to a paper rewinding mechanism for a rewinding machine. Background Technology

[0002] Specialty paper is a general term for paper products with special properties or uses and relatively small production volume. It is endowed with unique functions through special raw materials, processes or processing, and is widely used in many fields such as industry, daily life, construction, and agriculture. For example, it is used in the production of firecracker packaging and fruit bagging. The rewinding machine is an important piece of equipment in the production of specialty paper, and the paper rewinding mechanism of the rewinding machine is the core part of the rewinding machine. Its function is to rewind the paper that has been pre-treated by cutting and trimming into finished paper rolls that meet the requirements according to the set tightness and diameter.

[0003] In the prior art, patent CN218478294U discloses a rewinding mechanism for a paper slitting and rewinding machine, including a support plate. Mounting plates are fixedly provided on both sides of the top of the support plate. Multiple rewinding rollers are rotatably connected between the two mounting plates. The rewinding rollers are used for rewinding paper in the rewinding mechanism. A connecting ring is fixedly provided at one end of one of the mounting plates. A rotating shaft is inserted through the inner wall of the connecting ring. An adjustment and limiting mechanism is provided on the outside of the rotating shaft. The adjustment and limiting mechanism includes a stroke opening on the outer wall of the rotating shaft.

[0004] The rewinding mechanism of this paper slitting and rewinding machine has some problems. The outer support diameter of the rewinding roller is fixed, which can only be used to install special paper support cylinders with specific inner diameters. This results in the installation effect of the rewinding roller with special paper support cylinders of different inner diameters being inconsistent, affecting the stability of paper rewinding and also affecting the rewinding adaptability range of the special paper support cylinder of the rewinding machine. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a paper rewinding mechanism for a rewinding machine that can stably clamp special paper support cylinders with different inner diameters, while facilitating the installation and disassembly of special paper support cylinders, greatly improving the adaptability of the rewinding machine to special paper rewinding, and effectively solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper rewinding mechanism for a rewinding machine, including a rewinding frame, a rewinding drum rotatably connected to the middle of the rewinding frame, and also including an outer support assembly and a drive assembly;

[0007] The outer support assembly includes a gathering chamber, a drive shaft, a rotating shaft, an outer support rod, and an outer support wheel. The gathering chamber is located inside the rewinding drum. The drive shaft is rotatably connected inside the gathering chamber. The front end of the drive shaft extends to the front side of the rewinding drum. Symmetrically distributed rotating shafts are rotatably connected inside the gathering chamber. All rotating shafts are installed in conjunction with the drive shaft. An outer support rod is fixedly connected to the middle of each rotating shaft. An outer support wheel is rotatably connected to the end of each outer support rod away from the center of the rewinding drum. The outer arc surface of each outer support wheel is provided with a frosted surface.

[0008] Drive assembly: Located at the front end of the drive shaft, it can stably clamp special paper support cylinders with different inner diameters, and facilitate the installation and disassembly of special paper support cylinders, greatly improving the adaptability of the rewinder to special paper rewinding.

[0009] Furthermore, the external support assembly also includes a worm and a worm wheel. The worm is symmetrically and fixedly connected to the middle of the drive shaft, and a worm wheel is fixedly connected to the middle of each shaft. The worm wheel meshes with the adjacent worm to achieve synchronous rotation of the shaft and also has a self-locking effect.

[0010] Furthermore, the drive assembly includes a drive disc, ribs, a limiting disc, and a handle. The drive disc is slidably connected to the front end of the outer surface of the drive shaft. The drive disc has symmetrically distributed rib grooves inside its sliding opening. The front end of the outer surface of the drive shaft is fixedly connected to symmetrically distributed ribs. The limiting disc is fixedly connected to the front end of the drive shaft. The outer arc surface of the drive disc is fixedly connected to evenly distributed handles, which provide driving force for the rotation of the drive shaft and prevent accidental contact with the drive shaft when not in use.

[0011] Furthermore, the rear end of the rewinding frame is rotatably connected to a symmetrically distributed conveyor roller 1 via a bearing 1, and the upper end of the rewinding frame is rotatably connected to a symmetrically distributed conveyor roller 2 via a bearing 2, to assist in the conveying of special paper.

[0012] Furthermore, the rewinding frame is provided with symmetrically distributed grooves inside, each groove having a sliding seat slidably connected inside, and each sliding seat having a tension roller rotatably connected inside. A telescopic column is provided between the lower surface of the sliding seat and the bottom wall of the adjacent groove, and a spring is fixedly connected between the lower surface of the sliding seat and the bottom wall of the adjacent groove. The springs are movably sleeved on the outer surface of the adjacent telescopic column, providing adaptive tension during the rewinding process of special paper.

[0013] Furthermore, a control box is provided on the left side of the rewinding rack, and a controller is installed inside the control box. The input terminal of the controller is electrically connected to an external power supply to control various electrical appliances.

[0014] Furthermore, the rear end of the rewinding drum extends to the rear side of the rewinding frame, and a driven pulley is fixedly connected to the rear end of the rewinding drum. A motor is installed on the bottom wall of the rewinding frame, and a drive pulley is fixedly connected to the rear end of the motor output shaft. The drive pulley and the driven pulley are connected by a transmission belt. The input end of the motor is electrically connected to the output end of the controller to provide driving force for the rewinding of special paper.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The paper rewinding mechanism of this rewinding machine has the following advantages:

[0016] The operator first slides the drive disc, causing the ribs to slide into the rib grooves of the drive disc. Then, the drive shaft is rotated, which in turn drives the worm gear mechanism. This causes the outer support rods to rotate towards the center of the rewinding drum. The outer support wheels contact the inner wall of the special paper support drum, and the six outer support wheels provide outward support, achieving stable clamping of special paper support drums with different inner diameters. This generates sufficient friction to drive the idle special paper support drum to rotate. At the same time, the longitudinally rotating outer support wheels facilitate the installation and disassembly of the special paper support drum, greatly improving the rewinding adaptability of the rewinder for special paper. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the rear side of the present invention;

[0020] Figure 4 This is a schematic diagram of the external support component of this utility model;

[0021] Figure 5 This is an enlarged structural diagram of point A in this utility model;

[0022] Figure 6 This is an enlarged structural diagram of section B of the present invention.

[0023] In the diagram: 1 Rewinding frame, 2 Rewinding drum, 3 External support assembly, 31 Gathering chamber, 32 Drive shaft, 33 Worm gear, 34 Rotary shaft, 35 Worm wheel, 36 External support rod, 37 External support wheel, 4 Drive assembly, 41 Drive disc, 42 Rib, 43 Limiting disc, 44 Handle, 5 Conveyor roller one, 6 Conveyor roller two, 7 Tension roller, 8 Slide groove, 9 Sliding seat, 10 Telescopic column, 11 Spring, 12 Driven pulley, 13 Drive pulley, 14 Motor, 15 Control box, 16 Controller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This embodiment provides a technical solution: a paper rewinding mechanism for a rewinding machine, including a rewinding frame 1, a rewinding drum 2 rotatably connected to the middle of the rewinding frame 1, a symmetrically distributed conveyor roller 5 rotatably connected to the rear end of the rewinding frame 1 via a bearing 1, and a symmetrically distributed conveyor roller 6 rotatably connected to the upper end of the rewinding frame 1 via a bearing 2. It also includes an external support assembly 3 and a drive assembly 4.

[0026] The outer support assembly 3 includes a gathering chamber 31, a drive shaft 32, a rotating shaft 34, an outer support rod 36, and an outer support wheel 37. The gathering chamber 31 is located inside the rewinding drum 2. The drive shaft 32 is rotatably connected inside the gathering chamber 31. The front end of the drive shaft 32 extends to the front side of the rewinding drum 2. The rotating shafts 34 are symmetrically distributed inside the gathering chamber 31. The rotating shafts 34 are all installed in conjunction with the drive shaft 32. The outer support rods 36 are fixedly connected to the middle of the rotating shafts 34. The outer support wheel 37 is rotatably connected to the end of the outer support rod 36 away from the center of the rewinding drum 2. The outer arc surface of the outer support wheel 37 is provided with a frosted surface. The outer support assembly 3 also includes a worm 33 and a worm wheel 35. The worm 33 is symmetrically fixedly connected to the middle of the drive shaft 32. The worm wheel 35 is fixedly connected to the middle of the rotating shaft 34. The worm wheel 35 is meshed with the adjacent worm 33.

[0027] Drive assembly 4: Located at the front end of drive shaft 32, drive assembly 4 includes drive disc 41, ribs 42, limiting disc 43, and handles 44. Drive disc 41 is slidably connected to the front end of the outer surface of drive shaft 32. Symmetrically distributed rib grooves are provided inside the sliding opening of drive disc 41. Symmetrically distributed ribs 42 are fixedly connected to the front end of the outer surface of drive shaft 32. Limiting disc 43 is fixedly connected to the front end of drive shaft 32. Evenly distributed handles 44 are fixedly connected to the outer arc surface of drive disc 41. The special paper support tube is sleeved onto the rewinding tube. The outer surface of drive shaft 32 is then pulled forward, and drive disk 41 slides forward at the front end of drive disk 41 on the outer surface of drive shaft 32. When the front surface of drive disk 41 and the rear surface of limit disk 43 are in contact, ribs 42 slide into the corresponding rib grooves inside the sliding opening of drive disk 41. Then, drive disk 41 is rotated by handle 44. Since ribs 42 are all inside the corresponding rib grooves, the rotation of drive disk 41 drives drive shaft 32 to rotate. The rotation of drive shaft 32 drives two worm gears 33 to rotate. The rotation of worm gears 33 drives the adjacent worm wheel 35 to rotate. The rotation of the worm gear 35 drives the adjacent rotating shaft 34 to rotate, and the rotation of the rotating shaft 34 drives the adjacent outer support rod 36 to rotate towards the center of the rewinding drum 2. The rotation of the outer support rod 36 towards the center of the rewinding drum 2 drives the corresponding outer support wheel 37 to move out of the gathering chamber 31. The outer arc surface of the outer support wheel 37 contacts the inner wall of the special paper support tube, realizing the outer support clamping of the special paper support tube, and at the same time generating sufficient friction to drive the empty special paper support tube to rotate. After the special paper support tube is installed stably, it is stopped. Rotate the drive disc 41 by the handle 44, and then slide the drive disc 41 backward so that the ribs 42 are disengaged from the rib grooves inside the corresponding drive disc 41 slide opening. After the paper is rewound, when the drive disc 41 is moved to the drive state, rotate the drive shaft 32 in the opposite direction so that the outer support wheels 37 move toward the center inside the gathering chamber 31, ending the external support fixing of the special paper support tube. Then pull the special paper support tube outward, while the outer support wheels 37 rotate to assist the special paper support tube to move outward, making it easy to disassemble the special paper support tube.

[0028] Wherein: the rewinding frame 1 is provided with symmetrically distributed sliding grooves 8, each sliding groove 8 is slidably connected to a sliding seat 9, each sliding seat 9 is rotatably connected to a tension roller 7, each sliding seat 9 is provided with a telescopic column 10 between the lower surface of the sliding seat 9 and the bottom wall of the adjacent sliding groove 8, each sliding seat 9 is fixedly connected to a spring 11 between the lower surface of the sliding seat 9 and the bottom wall of the adjacent sliding groove 8, and each spring 11 is movably sleeved on the outer surface of the adjacent telescopic column 10.

[0029] Among them: a control box 15 is provided on the left side of the rewinding frame 1, and a controller 16 is provided inside the control box 15. The input terminal of the controller 16 is electrically connected to an external power supply.

[0030] The rewinding drum 2 extends to the rear side of the rewinding frame 1. A driven pulley 12 is fixedly connected to the rear end of the rewinding drum 2. A motor 14 is installed on the bottom wall of the rewinding frame 1. A drive pulley 13 is fixedly connected to the rear end of the output shaft of the motor 14. The drive pulley 13 and the driven pulley 12 are connected by a transmission belt. The input end of the motor 14 is electrically connected to the output end of the controller 16. The controller 16 enables the motor 14 to operate. The rotation of the output shaft of the motor 14 drives the drive pulley 13 to rotate. The rotation of the drive pulley 13 drives the driven pulley 12 to rotate through the transmission belt. The rotation of the driven pulley 12 drives the rewinding drum 2 to rotate. The special paper passes from right to left, sequentially through the lower end of the right-side conveyor roller 5 and the right-side tension roller. The lower end of 7, the upper end of the right conveyor roller 2 6, the upper end of the left conveyor roller 2 6, the lower end of the left tension roller 7, and the left end of the left conveyor roller 1 5 are finally wound onto the outer surface of the special paper support cylinder in the clamp. When the special paper passes through the tension roller 7, the special paper generates an upward force on the tension roller 7, causing the sliding seats 9 to slide upward inside the corresponding slide grooves 8. The upward movement of the sliding seats 9 causes the extension ends of the adjacent telescopic columns 10 to extend, and at the same time causes the adjacent springs 11 to stretch elastically. The elastic force of the spring 11 deformation reacts to the adjacent sliding seats 9, and then is transmitted to the corresponding tension roller 7. The tension roller 7 acts on the special paper again, so that the special paper remains stable during the conveying process, ensuring the stability of the special paper rewinding.

[0031] The working principle of the paper rewinding mechanism of the rewinding machine provided by this utility model is as follows: During operation, the operator first places the rewinding frame 1, the rewinding drum 2, and other mechanisms stably in a horizontal working area. Then, the operator attaches the special paper support cylinder to the outer surface of the rewinding drum 2. Next, the operator pulls the drive disc 41 forward. The drive disc 41 slides forward at the front end of the outer surface of the drive shaft 32. When the front surface of the drive disc 41 and the rear surface of the limiting disc 43 are in contact, the ribs 42 slide into the corresponding rib grooves inside the sliding opening of the drive disc 41. Then, the operator rotates the drive disc 41 through the handle 44. Because the ribs 42 are all inside the corresponding rib grooves, the rotation of the drive disc 41 drives the drive shaft 32 to rotate. The rotation of the drive shaft 32 drives the two worm gears 33 to rotate. The rotation of each of the three components drives the adjacent worm gear 35 to rotate, which in turn drives the adjacent rotating shaft 34 to rotate. The rotation of the rotating shaft 34 drives the adjacent outer support rod 36 to rotate towards the center of the rewinding drum 2. The rotation of the outer support rod 36 towards the center of the rewinding drum 2 drives the corresponding outer support wheel 37 to move out of the gathering chamber 31. The outer arc surface of the outer support wheel 37 contacts the inner wall of the special paper support tube, thereby clamping the special paper support tube and generating sufficient friction to drive the empty special paper support tube to rotate. After the special paper support tube is installed stably, the operator stops rotating the drive disk 41 by using the handle 44, and then slides the drive disk 41 backward, so that the ribs 42 disengage from the rib grooves inside the corresponding drive disk 41 sliding opening. Then, the controller 16 drives the motor 14. The output shaft of the motor 14 rotates, driving the drive pulley 13 to rotate. The drive pulley 13 rotates, driving the driven pulley 12 to rotate via the transmission belt. The driven pulley 12 rotates, driving the rewinding drum 2 to rotate. The special paper passes from right to left, sequentially through the lower end of the right-side conveyor roller 5, the lower end of the right-side tension roller 7, the upper end of the right-side conveyor roller 6, the upper end of the left-side conveyor roller 6, the lower end of the left-side tension roller 7, and the left end of the left-side conveyor roller 5. Finally, it is wound onto the outer surface of the special paper support drum held in the clamp. When the special paper passes the tension roller 7, the special paper exerts an upward force on the tension roller 7, causing the sliding seats 9 to slide upward within the corresponding grooves 8. The movement causes the telescopic ends of the adjacent telescopic columns 10 to extend, and at the same time causes the adjacent springs 11 to stretch elastically. The elastic force of the springs 11 deformation reacts on the adjacent sliding seats 9, and then is transmitted to the corresponding tension rollers 7. The tension rollers 7 act on the special paper again, so that the paper remains stable during the conveying process, ensuring the stability of the special paper rewinding. After the paper rewinding is completed, the controller 16 shuts off the motor 14. Then, when the personnel move the drive disk 41 to the drive state, the drive shaft 32 is rotated in the opposite direction, so that the outer support wheels 37 move towards the center of the inner cavity of the gathering chamber 31, ending the outer support fixing of the special paper support cylinder. Then, the personnel pull the special paper support cylinder outward, and at the same time, the outer support wheels 37 rotate to assist the special paper support cylinder to move outward, making it easy to disassemble the special paper support cylinder.

[0032] It is worth noting that the controller 16 disclosed in the above embodiments controls the operation of the motor 14 using methods commonly used in the prior art.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A paper rewinding mechanism for a rewinding machine, comprising a rewinding frame (1), wherein a rewinding drum (2) is rotatably connected to the middle of the rewinding frame (1), characterized in that: It also includes an external support component (3) and a drive component (4); The outer support assembly (3) includes a gathering chamber (31), a drive shaft (32), a rotating shaft (34), an outer support rod (36), and an outer support wheel (37). The gathering chamber (31) is located inside the rewinding drum (2). The drive shaft (32) is rotatably connected inside the gathering chamber (31). The front end of the drive shaft (32) extends to the front side of the rewinding drum (2). The rotating shaft (34) is rotatably connected inside the gathering chamber (31). The rotating shaft (34) is installed in conjunction with the drive shaft (32). The middle part of the rotating shaft (34) is fixedly connected to the outer support rod (36). The end of the outer support rod (36) away from the center of the rewinding drum (2) is rotatably connected to the outer support wheel (37). The outer arc surface of the outer support wheel (37) is provided with a frosted surface. Drive component (4): It is located at the front end of the drive shaft (32).

2. The paper rewinding mechanism of a rewinder according to claim 1, characterized in that: The external support assembly (3) also includes a worm (33) and a worm wheel (35). The worm (33) is symmetrically fixedly connected to the middle of the drive shaft (32), and the middle of the rotating shaft (34) is fixedly connected to a worm wheel (35). The worm wheel (35) is meshed with the adjacent worm (33).

3. The paper rewinding mechanism of a rewinder according to claim 1, characterized in that: The drive assembly (4) includes a drive disk (41), ribs (42), a limiting disk (43), and a handle (44). The drive disk (41) is slidably connected to the front end of the outer surface of the drive shaft (32). The drive disk (41) has symmetrically distributed rib grooves inside its sliding opening. The front end of the outer surface of the drive shaft (32) is fixedly connected to symmetrically distributed ribs (42). The limiting disk (43) is fixedly connected to the front end of the drive shaft (32). The outer arc surface of the drive disk (41) is fixedly connected to evenly distributed handles (44).

4. The paper rewinding mechanism of a rewinder according to claim 1, characterized in that: The rear end of the rewinding frame (1) is rotatably connected to a symmetrically distributed conveyor roller (5) via a bearing, and the upper end of the rewinding frame (1) is rotatably connected to a symmetrically distributed conveyor roller (6) via a bearing.

5. The paper rewinding mechanism of a rewinder according to claim 1, characterized in that: The rewinding frame (1) is provided with symmetrically distributed sliding grooves (8). Each sliding groove (8) is slidably connected to a sliding seat (9). Each sliding seat (9) is rotatably connected to a tension roller (7). Each sliding seat (9) is provided with a telescopic column (10) between the lower surface of the sliding seat (9) and the bottom wall of the adjacent sliding groove (8). Each sliding seat (9) is fixedly connected to a spring (11) between the lower surface of the sliding seat (9) and the bottom wall of the adjacent sliding groove (8). Each spring (11) is movably sleeved on the outer surface of the adjacent telescopic column (10).

6. The paper rewinding mechanism of a rewinder according to claim 1, characterized in that: A control box (15) is provided on the left side of the rewinding rack (1), and a controller (16) is provided inside the control box (15). The input terminal of the controller (16) is electrically connected to an external power source.

7. The paper rewinding mechanism of a rewinder according to claim 6, characterized in that: The rear end of the rewinding drum (2) extends to the rear side of the rewinding frame (1). A driven pulley (12) is fixedly connected to the rear end of the rewinding drum (2). A motor (14) is provided on the bottom wall of the rewinding frame (1). A drive pulley (13) is fixedly connected to the rear end of the output shaft of the motor (14). The drive pulley (13) and the driven pulley (12) are connected by a transmission belt. The input end of the motor (14) is electrically connected to the output end of the controller (16).

Images