PE (polyethylene) film wide-width rewinding machine

Abstract

The utility model discloses a PE film wide rewinder which comprises a conveyor body, the conveyor body is composed of a base and a frame body, the PE film wide rewinder further comprises a winding assembly and a cutting assembly, the winding assembly is installed on the conveyor body and used for winding a PE film, the cutting assembly is used for cutting off the PE film, and the winding assembly comprises a first motor fixedly connected to the interior of the conveyor body; a winding rod is fixedly connected to a driving shaft of the first motor, a sleeve plate is rotationally connected to the top of the conveying machine body, the sleeve plate is connected to the top end of the winding rod in a sleeving mode, a first telescopic rod is fixedly connected to the top of the conveying machine body, and the top end of the winding rod can be limited through the sleeve plate, so that the winding rod is always kept in a vertical state; and the sleeve plate can share the load, from the tightened PE film, borne by the winding rod, so that bending deformation of the joint of the bottom end of the winding rod and the driving shaft of the first motor is avoided, and the service life of the winding rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of industry, in particular to a wide-width PE film rewinding machine. Background Art

[0002] PE film, or polyethylene film, is a film material made of polyethylene resin through processes such as extrusion blow molding or cast film. After production, PE film is in a rolled-up form for storage and transportation. A rewinder is a device used to rewind large rolls of material into smaller rolls or rolls of specific specifications. The rewinder can divide a large roll of PE film into multiple small rolls, thereby facilitating the subsequent use of the PE film.

[0003] Whenever a sufficient amount of PE film is wound on the winding rod, a new winding rod needs to be replaced. Therefore, the winding rod on the rewinder is of detachable design. The winding rod on the traditional rewinder is connected to the motor shaft through a square rod. After the square rod is inserted into the motor shaft, the motor can drive the winding rod to rotate to achieve the winding of the PE film. Since the PE film needs to be in a taut state at all times during the winding process, the winding rod will bear a certain load during use. When winding a wider PE film, this part of the load will be further increased, which can easily cause the square rod at the connection between the winding rod and the motor to bend, causing the winding rod to tilt and affect the winding effect of the PE film. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the winding rod will bear a certain load during use, and this load easily causes the square rod at the connection between the winding rod and the motor to bend, resulting in the winding rod tilting and affecting the winding effect of the PE film. A wide-width PE film rewinding machine is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technologies: a PE film wide rewinding machine:

[0006] The conveyor body comprises a base and a frame, and further comprises:

[0007] A winding assembly for winding the PE film and a cutting assembly for cutting the PE film are installed on the conveyor body;

[0008] The winding assembly includes a first motor fixedly connected to the inside of the conveyor body, a winding rod fixedly connected to the driving shaft of the first motor, a sleeve plate rotatably connected to the top of the conveyor body, the sleeve plate is sleeved on the top of the winding rod, and a first telescopic rod is fixedly connected to the top of the conveyor body, and the telescopic end of the first telescopic rod is rotatably connected to the top of the sleeve plate.

[0009] A second telescopic rod is fixedly connected to the base of the conveyor body, a stop block is fixedly connected to the telescopic end of the second telescopic rod, and the stop block and the driving shaft of the first motor are located in a horizontal plane.

[0010] As a further description of a wide-width PE film rewinding machine of the above technology: a mounting frame is fixedly connected to the base of the conveyor body by bolts, a movable frame is slidably connected to the inside of the mounting frame, a roller is rotatably connected to the inside of the movable frame, and the roller protrudes from the inside of the mounting frame.

[0011] As a further description of a wide-width PE film rewinder of the above technology: a spring is provided between the movable frame and the inner wall of the mounting frame, and a switch for controlling the first motor and the second telescopic rod is installed on the inner wall of the mounting frame.

[0012] As a further description of a wide-width PE film rewinding machine of the above technology: the cutting assembly includes a vertical pole, a slider is slidably connected to the vertical pole, and a blade is fixedly connected to the side of the slider close to the PE film.

[0013] As a further description of the above technology, a PE film wide-width rewinding machine is as follows: two turntables are fixedly connected to the inside of the conveyor body, a second motor is fixedly connected to the outside of the base of the conveyor body, a transmission belt is connected between the drive shaft of the second motor and one of the turntables, a conveyor belt is connected between the two turntables, and a protruding rod is fixedly connected to the side of the conveyor belt close to the slider.

[0014] As a further description of a wide-width PE film rewinding machine of the above technology: the slider is fixedly connected to a limit frame on one side close to the conveyor belt, and the protruding rod is slidably connected to the inside of the limit frame.

[0015] In summary, due to the adoption of the above-mentioned technology, the wide-width PE film rewinding machine of the present invention has the following beneficial effects:

[0016] 1. After the winding rod is installed on the drive shaft of the first motor, the sleeve is sleeved on the top of the winding rod. The sleeve can limit the top of the winding rod so that the winding rod always remains in a vertical state, thereby preventing the winding rod from tilting and ensuring the winding effect of the winding rod. The sleeve can also share the load of the taut PE film on the winding rod, thereby avoiding bending deformation at the connection between the bottom end of the winding rod and the drive shaft of the first motor, thereby ensuring the service life of the winding rod.

[0017] 2. As the PE film rolled on the winding rod gradually thickens until it contacts the roller, the PE film pushes the roller and the movable frame, causing the switch to be squeezed and triggered, thereby automatically turning off the first motor. This design can ensure the thickness of the PE film rolled on each winding rod is consistent, thereby ensuring the consistency of each roll of PE film, and can prevent the PE film rolled on the winding rod from being too thick and causing it to get stuck with surrounding parts, thereby ensuring the safety of the device.

[0018] 3. The conveyor belt, convex rod and limit frame can drive the slider and blade to move up and down over a long distance, realizing automatic cutting of wide PE film, making it easy to separate the rewound PE film from the large roll PE film, thereby improving the utilization efficiency of the device.

[0019] 4. The triggering of the switch will simultaneously control the extension of the second telescopic rod to drive the block to squeeze and lock the drive shaft of the first motor, so as to prevent the pull from the PE film from causing the winding rod to reverse after the drive shaft of the first motor is braked, resulting in the loosening of the PE film, thereby facilitating the blade to cut the PE film. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Shows an overall stereogram provided according to an embodiment of the utility model;

[0021] Figure 2 Shows a top structural diagram provided according to an embodiment of the utility model;

[0022] Figure 3 Shows a bottom structure diagram provided according to an embodiment of the utility model;

[0023] Figure 4 An exploded view of a convex rod structure provided according to an embodiment of the present utility model is shown;

[0024] Figure 5 A cross-sectional view of a mounting bracket provided according to an embodiment of the present utility model is shown.

[0025] Legend:

[0026] 1. Conveyor body;

[0027] 2. Winding assembly; 21. First motor; 22. Winding rod; 23. Cover plate; 24. First telescopic rod; 25. Mounting frame; 26. Movable frame; 27. Roller; 28. Shrapnel; 29. ​​Switch;

[0028] 3. Cutting assembly; 31. Second motor; 32. Transmission belt; 33. Turntable; 34. Conveyor belt; 35. Vertical pole; 36. Slider; 37. Blade; 38. Protruding rod; 39. Limiting frame;

[0029] 41. Second telescopic rod; 42. Stop block. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings to clearly and completely describe the technology of the PE film wide-width rewinder in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the utility model.

[0031] The utility model adopts the following technologies to form a PE film wide-width rewinding machine:

[0032] The conveyor body 1 is composed of a base and a frame, and further includes:

[0033] A winding assembly 2 for winding the PE film and a cutting assembly 3 for cutting the PE film are installed on the conveyor body 1;

[0034] The winding assembly 2 includes a first motor 21 fixedly connected to the inside of the conveyor body 1, and a winding rod 22 is fixedly connected to the driving shaft of the first motor 21. The top of the conveyor body 1 is rotatably connected to a sleeve plate 23, and the sleeve plate 23 is sleeved on the top of the winding rod 22. The top of the conveyor body 1 is fixedly connected to a first telescopic rod 24, and the telescopic end of the first telescopic rod 24 is rotatably connected to the top of the sleeve plate 23. The sleeve plate 23 is sleeved on the top of the winding rod 22 to limit the top of the winding rod 22, so that the winding rod 22 always remains in a vertical state, thereby avoiding the winding rod 22 from tilting, ensuring the winding effect of the winding rod 22, and the sleeve plate 23 can share the load of the winding rod 22 from the taut PE film, thereby avoiding bending deformation at the connection between the bottom end of the winding rod 22 and the driving shaft of the first motor 21.

[0035] A second telescopic rod 41 is fixedly connected to the base of the conveyor body 1, and a stop block 42 is fixedly connected to the telescopic end of the second telescopic rod 41. The stop block 42 and the drive shaft of the first motor 21 are located in the same horizontal plane. The stop block 42 can lock the drive shaft of the first motor 21 after the first motor 21 is turned off to prevent the tension of the taut PE film from causing the winding rod 22 to reverse and loosen the unwound PE film.

[0036] Furthermore, a mounting bracket 25 is fixedly connected to the base of the conveyor body 1 by bolts. The position of the mounting bracket 25 can be adjusted to facilitate adjustment of the thickness of the PE film rolled up on the winding rod 22. The interior of the mounting bracket 25 is slidably connected to a movable frame 26, and the interior of the movable frame 26 is rotatably connected to a roller 27. The roller 27 protrudes from the interior of the mounting bracket 25 and is configured to be columnar. The function of the roller 27 is to rotate after it contacts the PE film on the winding rod 22, thereby reducing the friction force on the PE film and ensuring the integrity of the PE film.

[0037] Furthermore, a spring piece 28 is provided between the movable frame 26 and the inner wall of the mounting frame 25, and a switch 29 for controlling the first motor 21 and the second telescopic rod 41 is installed on the inner wall of the mounting frame 25. When the switch 29 is triggered, the first motor 21 will be automatically turned off and the second telescopic rod 41 will be extended.

[0038] Furthermore, the cutting assembly 3 includes a vertical rod 35, on which a slider 36 is slidably connected. A blade 37 is fixedly connected to the side of the slider 36 close to the PE film. The blade 37 is located above the position where the PE film passes and can cut the PE film when it moves downward.

[0039] Furthermore, two turntables 33 are fixedly connected to the inside of the conveyor body 1, and a second motor 31 is fixedly connected to the outside of the base of the conveyor body 1. A transmission belt 32 is connected between the drive shaft of the second motor 31 and one of the turntables 33. A conveyor belt 34 is connected between the two turntables 33. A protruding rod 38 is fixedly connected to the side of the conveyor belt 34 close to the slider 36. The function of the transmission belt 32 is to enable the second motor 31 to be installed on the side of the conveyor body 1 to avoid being blocked around the winding rod 22, leaving space for the PE film.

[0040] Furthermore, the slider 36 is fixedly connected to the limit frame 39 on one side close to the conveyor belt 34, and the protruding rod 38 is slidably connected to the inside of the limit frame 39. When the conveyor belt 34 rotates in a cycle, the slider 36 and the blade 37 can be driven to move up and down through the protruding rod 38 and the limit frame 39 to repeatedly cut the PE film.

[0041] Working principle: In the initial state, the first telescopic rod 24 is in a retracted state, and the cover plate 23 is tilted upward. After the bottom end of the winding rod 22 is fixed to the driving shaft of the first motor 21, the first telescopic rod 24 is controlled to extend. The first telescopic rod 24 drives the cover plate 23 to deflect downward and engage the top end of the cover plate 23, so that the cover plate 23 remains in a vertical state;

[0042] Fix the end of the large roll of PE film inside the conveyor body 1 to the winding rod 22, start the first motor 21 to drive the winding rod 22 to rotate to rewind the PE film. After the PE film on the winding rod 22 reaches a certain thickness, the PE film pushes the roller 27 and the movable frame 26, causing the switch 29 to be pressed and triggered. At this time, the switch 29 controls the first motor 21 to stop rotating, stopping the further winding of the PE film. The second telescopic rod 41 automatically extends to drive the abutment 42 to abut and lock the drive shaft of the first motor 21.

[0043] Start the second motor 31. Under the drive of the transmission belt 32, the second motor 31 drives the turntable 33 to rotate to transport the conveyor belt 34. When the conveyor belt 34 rotates in a circle, it drives the protruding rod 38 to move in a circle. During the movement, the protruding rod 38 pushes the limit frame 39 to realize the up and down reciprocating motion of the slider 36 and the blade 37. The blade 37 cuts the PE film when it moves.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field of the present invention can replace or change the one-piece groove elbow and its utility model concept according to the technical scope of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PE film wide width rewinding machine, comprising a conveyor body (1), wherein the conveyor body (1) is composed of a base and a frame, and is characterized in that: Also includes: A winding assembly (2) for winding the PE film and a cutting assembly (3) for cutting the PE film are installed on the conveyor body (1); The winding assembly (2) includes a first motor (21) fixedly connected to the inside of the conveyor body (1), a winding rod (22) fixedly connected to the driving shaft of the first motor (21), a sleeve plate (23) rotatably connected to the top of the conveyor body (1), the sleeve plate (23) sleeved on the top of the winding rod (22), a first telescopic rod (24) fixedly connected to the top of the conveyor body (1), and a telescopic end of the first telescopic rod (24) rotatably connected to the top of the sleeve plate (23); A second telescopic rod (41) is fixedly connected to the base of the conveyor body (1), and a stop block (42) is fixedly connected to the telescopic end of the second telescopic rod (41). The stop block (42) and the driving shaft of the first motor (21) are located in the same horizontal plane.

2. A PE film wide rewinding machine according to claim 1, characterized in that: A mounting frame (25) is fixedly connected to the base of the conveyor body (1) by bolts, a movable frame (26) is slidably connected inside the mounting frame (25), a roller (27) is rotatably connected inside the movable frame (26), and the roller (27) protrudes from the inside of the mounting frame (25).

3. A PE film wide rewinding machine according to claim 2, characterized in that: A spring (28) is provided between the movable frame (26) and the inner wall of the mounting frame (25), and a switch (29) for controlling the first motor (21) and the second telescopic rod (41) is installed on the inner wall of the mounting frame (25).

4. A PE film wide rewinding machine according to claim 1, characterized in that: The cutting assembly (3) comprises a vertical rod (35), a slider (36) is slidably connected to the vertical rod (35), and a blade (37) is fixedly connected to the side of the slider (36) close to the PE film.

5. A PE film wide rewinding machine according to claim 4, characterized in that: Two turntables (33) are fixedly connected inside the conveyor body (1), a second motor (31) is fixedly connected to the outside of the base of the conveyor body (1), a transmission belt (32) is connected between the driving shaft of the second motor (31) and one of the turntables (33), a conveyor belt (34) is connected between the two turntables (33), and a protruding rod (38) is fixedly connected to the side of the conveyor belt (34) close to the slider (36).

6. A PE film wide width rewinding machine according to claim 5, characterized in that: The slider (36) is fixedly connected to a limit frame (39) on one side close to the conveyor belt (34), and the protruding rod (38) is slidably connected to the inside of the limit frame (39).

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