Rewinding device for slitting plastic film

Abstract

The utility model relates to the technical field of rewinding devices, and discloses a rewinding device for slitting a plastic film, which comprises a base, and a worktable is mounted on the right side of the upper surface of the base; the second motor is arranged on the front portion of the right side of the upper surface of the base, a screw rod is arranged at the rotor output end of the second motor, a screw rod is also arranged on the rear portion of the right side of the upper surface of the base, and driving blocks are rotationally connected to the surfaces of the screw rods; and the first hydraulic telescopic rod is arranged on the upper surface of the driving block, a lifting plate is installed at the output end of the first hydraulic telescopic rod, and an extrusion roller is transversely installed at the bottom of the lifting plate through a bearing. A second motor is started to drive a lead screw to rotate, so that a driving block can be driven to move, then an extrusion roller can be driven to move along the surface of the workbench, through reciprocating rolling extrusion on the plastic film, wrinkles on the surface of the plastic film can be eliminated, and meanwhile subsequent shrinkage of the plastic film can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of rewinding devices, specifically a rewinding device for slitting plastic films. Background Technology

[0002] A rewinding device is an industrial automation equipment mainly used to rewind wide rolls (such as plastic film, paper, non-woven fabric, etc.) into individual finished rolls according to preset specifications.

[0003] In the production of plastic film, slitting and rewinding is one of the important processes. It consists of an unwinding mechanism, a tension control system, a web correction module, and a rewinding shaft, and is driven by a servo motor.

[0004] However, when tensioning the plastic film, it is necessary to stretch it. The stretched plastic film will shrink in a short time, which leads to unstable tension control of the plastic film. As a result, the rewound film roll is prone to uneven tension and wrinkles. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rewinding device for slitting plastic films, thereby solving the problems mentioned in the background art, such as unstable tension control of plastic films and the tendency for the rewound film rolls to exhibit uneven tension and wrinkles.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rewinding device for slitting plastic film, comprising:

[0007] The base has conveyor rollers installed on both sides of the upper surface of the base at the feed end;

[0008] A mounting plate is disposed on the upper surface of the base at the winding end. A first motor is mounted on the surface of the mounting plate. A winding roller is coaxially mounted on the rotor of the first motor. A worktable is mounted on the right side of the upper surface of the base.

[0009] The second motor is located on the front right side of the upper surface of the base. The rotor output end of the second motor is provided with a lead screw, and the rear right side of the upper surface of the base is also provided with a lead screw. The surface of the lead screw is screwed with a drive block.

[0010] A first hydraulic telescopic rod is disposed on the upper surface of the drive block. A lifting plate is installed at the output end of the first hydraulic telescopic rod, and a pressing roller is installed laterally at the bottom of the lifting plate via a bearing.

[0011] Preferably, each lead screw is equipped with a turntable at its connecting end. The turntable at the front is coaxially connected to the rotor output end of the second motor. A belt is sleeved between the turntables so that the two lead screws can rotate synchronously. The turntable at the rear is mounted on the surface of the raised plate on the upper surface of the base through a bearing.

[0012] Preferably, a tensioning frame is provided in the middle of the upper surface of the base, a second hydraulic telescopic rod is installed on the upper surface of the tensioning frame, a lifting frame is installed at the output end of the second hydraulic telescopic rod, a first tensioning roller is installed at the bottom of the lifting frame, and a second tensioning roller is installed in the lower part of the inner cavity of the tensioning frame. Activating the second hydraulic telescopic rod can drive the lifting frame to move downward, thereby adjusting the distance between the first tensioning roller and the second tensioning roller to compress the plastic film.

[0013] Preferably, a third hydraulic telescopic rod is installed on the upper surface of the base. The output end of the third hydraulic telescopic rod is connected to the surface of the tensioning frame. Activating the third hydraulic telescopic rod can drive the tensioning frame to move, thereby enabling the plastic film to be tensioned through the first tensioning roller and the second tensioning roller.

[0014] Preferably, sliders are installed on both the front and rear sides of the lower surface of the tensioning frame, and grooves are opened on both the front and rear sides of the upper surface of the base. The sliders are embedded in the grooves, so that the tensioning frame can move linearly.

[0015] Preferably, a limiting block is installed at the bottom of each drive block, and a limiting groove is formed on the upper surface of the base at the position corresponding to the limiting block. The limiting block is inserted into the inside of the limiting groove so that the drive block will not deviate when it moves. Beneficial effects

[0016] Compared with the prior art, the present invention provides a rewinding device for slitting plastic film, which has the following advantages:

[0017] The plastic film slitting and rewinding device features a first hydraulic telescopic rod that can lift and lower a lifting plate, thereby causing the extrusion roller to move downwards and squeeze the plastic film onto the surface of the worktable. Starting a second motor rotates a lead screw, which in turn moves a drive block, causing the extrusion roller to move along the surface of the worktable. This reciprocating rolling and squeezing of the plastic film eliminates wrinkles on its surface and prevents subsequent shrinkage, thus avoiding uneven tension in the film roll. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the lifting plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the base of this utility model;

[0021] Figure 4 This is a schematic diagram of the tensioning frame of this utility model.

[0022] In the diagram: 1. Base; 2. Conveyor roller; 3. Mounting plate; 4. First motor; 5. Take-up roller; 6. Worktable; 7. Second motor; 8. Lead screw; 9. Drive block; 10. First hydraulic telescopic rod; 11. Lifting plate; 12. Extrusion roller; 13. Tensioning frame; 14. Second hydraulic telescopic rod; 15. Lifting frame; 16. First tensioning roller; 17. Second tensioning roller; 18. Third hydraulic telescopic rod; 19. Slider; 20. Slide groove; 21. Limiting block; 22. Limiting groove; 23. Turntable; 24. Belt. Detailed Implementation

[0023] 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.

[0024] This utility model provides a technical solution: a rewinding device for slitting plastic film. Please refer to [link / reference]. Figure 1 It includes a base 1, and conveying rollers 2 are installed on both sides of the upper surface of the base 1 at the feed end;

[0025] Mounting plate 3 is set on the upper surface of base 1 at the winding end. A first motor 4 is mounted on the surface of mounting plate 3. A winding roller 5 is coaxially mounted on the rotor of the first motor 4. A worktable 6 is mounted on the right side of the upper surface of base 1.

[0026] The plastic film can be conveyed by the conveying roller 2, and the first motor 4 can be started to drive the winding roller 5 to rotate, which can wind up the plastic film.

[0027] The second motor 7 is located on the front right side of the upper surface of the base 1. The rotor output end of the second motor 7 is provided with a lead screw 8, and the rear right side of the upper surface of the base 1 is also provided with a lead screw 8. The surface of the lead screw 8 is screwed with a drive block 9.

[0028] The first hydraulic telescopic rod 10 is mounted on the upper surface of the drive block 9. Please refer to [link / reference]. Figure 2 The output end of the first hydraulic telescopic rod 10 is equipped with a lifting plate 11, and the bottom of the lifting plate 11 is horizontally equipped with a pressing roller 12 via a bearing.

[0029] Activating the first hydraulic telescopic rod 10 can drive the lifting plate 11 to rise and fall, thereby driving the extrusion roller 12 to move downward to extrude the plastic film and press the plastic film onto the surface of the worktable 6. Activating the second motor 7 can drive the lead screw 8 to rotate, thereby driving the drive block 9 to move, which in turn drives the extrusion roller 12 to move along the surface of the worktable 6. By repeatedly rolling and extruding the plastic film, wrinkles on the surface of the plastic film can be eliminated, and the plastic film can also be prevented from shrinking in the future, thus avoiding the phenomenon of uneven tightness of the film roll.

[0030] Turntables 23 are installed at the connecting ends of the lead screws 8. The front turntable 23 is coaxially connected to the rotor output end of the second motor 7. A belt 24 is sleeved between the turntables 23 so that the two lead screws 8 can rotate synchronously. The rear turntable 23 is mounted on the surface of the raised plate on the upper surface of the base 1 through bearings.

[0031] Please see Figure 1 A tensioning frame 13 is provided in the middle of the upper surface of the base 1. Please refer to [link / reference]. Figure 4 A second hydraulic telescopic rod 14 is installed on the upper surface of the tensioning frame 13. A lifting frame 15 is installed at the output end of the second hydraulic telescopic rod 14. A first tensioning roller 16 is installed at the bottom of the lifting frame 15. A second tensioning roller 17 is installed in the lower part of the inner cavity of the tensioning frame 13. Activating the second hydraulic telescopic rod 14 can drive the lifting frame 15 to move downward, thereby adjusting the distance between the first tensioning roller 16 and the second tensioning roller 17 to compress the plastic film.

[0032] A third hydraulic telescopic rod 18 is installed on the upper surface of the base 1. The output end of the third hydraulic telescopic rod 18 is connected to the surface of the tensioning frame 13. Activating the third hydraulic telescopic rod 18 can drive the tensioning frame 13 to move, thereby enabling the plastic film to be tensioned through the first tensioning roller 16 and the second tensioning roller 17.

[0033] The lower surface of the tensioning frame 13 is equipped with sliders 19 on both the front and rear sides. Please refer to [link / reference]. Figure 3 The upper surface of the base 1 has grooves 20 on both the front and rear sides. The slider 19 is embedded in the groove 20, so that the tensioning frame 13 can move linearly.

[0034] Please see Figure 2 Limit blocks 21 are installed at the bottom of each drive block 9. Please refer to [link / reference]. Figure 3 Limiting grooves 22 are provided on the upper surface of the base 1 and at the corresponding positions of the limiting block 21. The limiting block 21 is inserted into the inside of the limiting groove 22 so that the driving block 9 will not deviate when it moves.

[0035] In operation, this system works as follows: First, the conveyor roller 2 transports the plastic film. Starting the first motor 4 drives the take-up roller 5 to rotate, thus winding the plastic film. Activating the second hydraulic telescopic rod 14 moves the lifting frame 15 downwards, adjusting the distance between the first tensioning roller 16 and the second tensioning roller 17 to compress the plastic film. Activating the third hydraulic telescopic rod 18 moves the tensioning frame 13, tensioning the plastic film through the first and second tensioning rollers 16 and 17. Finally, activating the first hydraulic telescopic rod 10 drives the lifting frame 15 to move downwards. The lowering plate 11 is raised and lowered, which drives the extrusion roller 12 to move downward to extrude the plastic film and press it onto the surface of the worktable 6. Finally, the second motor 7 is started to drive the turntable 23 to rotate. The turntable 23 drives the two lead screws 8 to rotate synchronously through the belt 24, which in turn drives the drive block 9 to move synchronously. This in turn drives the extrusion roller 12 to move along the surface of the worktable 6. By repeatedly rolling and extruding the plastic film, wrinkles on the surface of the plastic film can be eliminated, and the plastic film can be prevented from shrinking in the future, thus avoiding uneven tension in the film roll.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rewinding device for slitting plastic film, characterized in that, include: The base (1) has conveying rollers (2) installed on both sides of the upper surface of the base (1) at the feed end. Mounting plate (3) is set on the upper surface of base (1) at the winding end. A first motor (4) is mounted on the surface of the mounting plate (3). A winding roller (5) is coaxially mounted on the rotor of the first motor (4). A worktable (6) is mounted on the right side of the upper surface of the base (1). The second motor (7) is located on the front right side of the upper surface of the base (1). The rotor output end of the second motor (7) is provided with a lead screw (8). The rear right side of the upper surface of the base (1) is also provided with a lead screw (8). The surface of the lead screw (8) is screwed with a drive block (9). The first hydraulic telescopic rod (10) is disposed on the upper surface of the drive block (9). A lifting plate (11) is installed at the output end of the first hydraulic telescopic rod (10). A pressing roller (12) is installed laterally at the bottom of the lifting plate (11) through a bearing.

2. The rewinding device for slitting plastic film according to claim 1, characterized in that: The connecting ends of the lead screw (8) are all equipped with turntables (23). The turntables (23) located at the front are coaxially connected to the rotor output end of the second motor (7). A belt (24) is sleeved between the turntables (23).

3. The rewinding device for slitting plastic film according to claim 1, characterized in that: The base (1) has a tensioning frame (13) in the middle of its upper surface. A second hydraulic telescopic rod (14) is installed on the upper surface of the tensioning frame (13). A lifting frame (15) is installed at the output end of the second hydraulic telescopic rod (14). A first tensioning roller (16) is installed at the bottom of the lifting frame (15). A second tensioning roller (17) is installed in the lower part of the inner cavity of the tensioning frame (13).

4. The rewinding device for slitting plastic film according to claim 3, characterized in that: A third hydraulic telescopic rod (18) is installed on the upper surface of the base (1), and the output end of the third hydraulic telescopic rod (18) is connected to the surface of the tensioning frame (13).

5. The rewinding device for slitting plastic film according to claim 3, characterized in that: The tensioning frame (13) has sliders (19) installed on both the front and rear sides of its lower surface, and the base (1) has grooves (20) on both the front and rear sides of its upper surface.

6. The rewinding device for slitting plastic film according to claim 1, characterized in that: Limiting blocks (21) are installed at the bottom of each drive block (9), and limiting grooves (22) are opened on the upper surface of the base (1) at the corresponding positions of the limiting blocks (21).

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