Winding mechanism of film splitting machine

Abstract

The utility model discloses a winding mechanism of a thin film splitting machine, relates to the technical field of thin film winding, and solves the technical problem that when a winding roller is driven by an existing motor to wind a thin film, the thin film is easy to break and damage due to continuous increase of the winding speed. Comprising a support and a winding roller installed on the support, the support comprises a bottom plate and side plates symmetrically installed on the bottom plate, the winding roller is rotatably installed between the two side plates, a roller frame is arranged below the winding roller, a pressing roller attached to the bottom of the winding roller is rotatably installed in the roller frame, and an elastic rod is installed between the roller frame and the bottom plate; a driving shell is installed on the side wall of one side plate, and one end of the winding roller is coaxially connected with a rotating pipe extending into the driving shell. When the film is continuously wound by the winding roller, the rotating speed of the winding roller can be automatically reduced along with the continuous increase of the diameter of the wound film, the phenomenon that the film is snapped and damaged can be effectively avoided, and the winding quality of the film can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of film rolling, in particular to a film slitting machine rolling mechanism. Background Art

[0002] In the film making workshop, film winding is a key step in the production process of plastic film. After extrusion, casting, longitudinal stretching, transverse stretching, traction, winding and other processes, it will enter the slitting stage.

[0003] The slitting machine is a device used to slit the wide film after it is rolled up once, and then re-slit it according to the specified width to meet the needs of different customers. In the unwinding and slitting process, the rolled film needs to be placed on the unwinding rack of the slitting machine first, and then the film is unrolled through the unwinding device. The unrolled film passes through the guide device and enters the slitting area. The slitting tool slits it according to the set width. The slit film is re-wound into a smaller roll through the rewinding mechanism for subsequent use or sale.

[0004] At present, the winding of film slitting machines is mostly completed by motor-driven winding rollers. Although this winding method can meet the use needs to a certain extent, it still has the following defects:

[0005] As the winding roller continuously wraps around the film, the winding diameter of the film on the winding roller will continue to increase, so that the amount of film wound up by the winding roller is larger with each rotation of the winding roller. The motor drives the winding roller to rotate at a constant speed, which will cause the film to be wound faster and faster, and the traction force on the film will also become greater, resulting in the risk of the film being broken and damaged. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a film slitting machine winding mechanism, which solves the problem that when the existing motor drives the winding roller to wind the film, the film is easily broken and damaged due to the continuous increase in the winding speed.

[0007] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a film slitting machine winding mechanism is proposed, including a support and a winding roller installed on the support, the support including a bottom plate and a side plate symmetrically installed on the bottom plate, the winding roller is rotatably installed between the two side plates, a roller frame is provided below the winding roller, a pressure roller that fits the bottom of the winding roller is rotatably installed in the roller frame, and an elastic rod is installed between the roller frame and the bottom plate, a driving shell is installed at the side wall of one of the side plates, one end of the winding roller is coaxially connected with a rotating tube extending into the driving shell, a driving mechanism for driving the rotating tube to rotate is installed on the driving shell, a movable plate is provided in the driving shell, a friction member that can be inserted into the rotating tube is installed on one side of the movable plate, and a linkage assembly is installed between the movable plate and the roller frame.

[0008] As a further technical solution of the utility model, the driving mechanism includes a motor installed on the side wall of the driving shell, a rotating rod extending into the driving shell is installed at the output end of the motor, a guide assembly is installed between the rotating rod and the movable plate, sprockets are mounted on the rotating rod and the rotating tube, and a chain is mounted on both sprockets.

[0009] As a further technical solution of the utility model, the friction member includes a fixed rod and an elastic sleeve sleeved on the fixed rod, and the elastic sleeve partially extends into the rotating tube and fits with the inner wall of the rotating tube.

[0010] As a further technical solution of the utility model, the guide assembly includes a fixed plate mounted on a rotating rod, the fixed plate is installed on the upper surface of the interior of the drive shell, and a guide rod is slidably inserted on the fixed plate, one end of the guide rod is connected to a movable plate, and a first spring mounted on the guide rod is installed between the movable plate and the fixed plate.

[0011] As a further technical solution of the utility model, the linkage assembly includes a through groove opened on the side plate, a pressure rod connected to the roller frame is movably arranged in the through groove, and a pull rope is connected between the pressure rod and the movable plate, and a guide wheel for winding the pull rope is rotatably installed in the drive shell.

[0012] As a further technical solution of the utility model, the elastic rod includes a plurality of support tubes installed on the bottom plate, an insertion rod with an inverted T-shaped structure is slidably inserted in the support tube, the top end of the insertion rod is connected to the roller frame, and the bottom end of the insertion rod is connected to a second spring installed in the support tube.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model conveniently drives the rotating roller connected to the rotating tube to rotate through the driving mechanism, thereby facilitating the winding of the film. As the diameter of the wound film increases continuously, pressure is continuously applied to the pressure roller, so that the roller frame equipped with the pressure roller automatically compresses the spring rod. During the downward movement of the roller frame, the linkage assembly conveniently pulls the movable plate in the driving shell to move, so that the movable plate drives the friction member to gradually insert into the rotating tube, thereby continuously increasing the friction force between the friction member and the rotating tube. As the friction force continues to increase, the rotating tube is decelerated to avoid the film being broken and damaged due to excessive rotation speed, which is beneficial to improving the winding quality of the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of a film slitting machine rewinding mechanism of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a film slitting machine rewinding mechanism of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of a friction part in a winding mechanism of a film slitting machine of the utility model;

[0018] Figure 4 for Figure 2 Enlarged view of part A.

[0019] In the figure: 1. winding roller; 2. bottom plate; 3. side plate; 4. pressure roller; 5. elastic rod; 501. support tube; 502. insertion rod; 503. second spring; 6. driving shell; 7. rotating tube; 8. movable plate; 9. friction member; 901. fixed rod; 902. elastic sleeve; 10. motor; 11. rotating rod; 12. chain; 13. fixed plate; 14. first spring; 15. through groove; 16. pull rope; 17. guide wheel. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figure 1-4 As shown, a film slitting machine winding mechanism comprises a support and a winding roller 1 mounted on the support, the support comprises a bottom plate 2 and a side plate 3 symmetrically mounted on the bottom plate 2, the winding roller 1 is rotatably mounted between the two side plates 3, a roller frame is provided below the winding roller 1, a pressure roller 4 which fits the bottom of the winding roller 1 is rotatably mounted in the roller frame, and an elastic rod 5 is installed between the roller frame and the bottom plate 2 to facilitate elastic support of the roller frame;

[0022] The elastic rod 5 includes a plurality of support tubes 501 mounted on the bottom plate 2, in which an inverted T-shaped insertion rod 502 is slidably inserted, the top end of the insertion rod 502 is connected to the roller frame, and the bottom end of the insertion rod 502 is connected to a second spring 503 installed in the support tube 501.

[0023] A driving shell 6 is installed on the side wall of one of the side plates 3, one end of the winding roller 1 is coaxially connected to a rotating tube 7 extending into the driving shell 6, and a driving mechanism for driving the rotating tube 7 to rotate is installed on the driving shell 6;

[0024] The driving mechanism includes a motor 10 mounted on the side wall of the driving shell 6. A rotating rod 11 extending into the driving shell 6 is installed at the output end of the motor 10. Sprockets are mounted on the rotating rod 11 and the rotating tube 7, and a chain 12 is mounted on both sprockets.

[0025] A guide assembly is installed between the rotating rod 11 and the movable plate 8, and the guide assembly includes a fixed plate 13 mounted on the rotating rod 11, the fixed plate 13 is installed on the upper surface inside the driving shell 6, and a guide rod is slidably inserted on the fixed plate 13, one end of the guide rod is connected to the movable plate 8, and a first spring 14 mounted on the guide rod is installed between the movable plate 8 and the fixed plate 13 to facilitate resetting.

[0026] A movable plate 8 is provided in the driving shell 6, and a friction member 9 which can be inserted into the rotating tube 7 is installed on one side of the movable plate 8. The friction member 9 includes a fixed rod 901 and an elastic sleeve 902 mounted on the fixed rod 901. In this embodiment, the elastic sleeve 902 includes a rubber sleeve, but is not limited to a rubber sleeve. The elastic sleeve 902 partially extends into the rotating tube 7 and fits against the inner wall of the rotating tube 7.

[0027] A linkage assembly is installed between the movable plate 8 and the roller frame to facilitate the movable plate 8 to move when the roller frame moves downward. The linkage assembly includes a through slot 15 opened on the side plate 3, a pressure rod connected to the roller frame is movably arranged in the through slot 15, and a pull rope 16 is connected between the pressure rod and the movable plate 8, and a guide wheel 17 for the pull rope 16 to be wound around is rotatably installed in the drive shell 6.

[0028] The working principle of the utility model is as follows: the lower pressure roller frame separates the pressure roller 4 from the winding roller 1, passes the film to be wound between the pressure roller 4 and the winding roller 1, and wraps one end of the film around the winding roller 1, starts the motor 10 to drive the rotating rod 11 to rotate, cooperates with the sprocket and chain 12 to drive, and the rotating tube 7 can drive the winding roller 1 to wind the film. As the diameter of the film wound on the winding roller 1 continues to increase, under the extrusion effect, the pressure roller 4 and the roller frame will move downward and compress the elastic rod 5. During the downward movement of the roller frame, the pull rope 16 is pulled down, and the guide wheel 17 is cooperated to facilitate the horizontal pulling of the movable plate 8, so that the movable plate 8 drives the guide rod to slide along the fixed plate 13 and compress the first spring 14. At the same time, the movable plate 8 drives the friction member 9 to continuously penetrate into the rotating tube 7, so that the contact area between the elastic sleeve 902 and the inner wall of the rotating tube 7 is continuously increased, thereby continuously increasing the friction between the friction member 9 and the rotating tube 7. As the friction force continues to increase, the rotating tube 7 can be decelerated to avoid the film being broken and damaged due to excessive rotation speed.

[0029] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A film slitting machine winding mechanism, comprising a support and a winding roller (1) mounted on the support, characterized in that: The support comprises a bottom plate (2) and side plates (3) symmetrically mounted on the bottom plate (2); the winding roller (1) is rotatably mounted between the two side plates (3); a roller frame is provided below the winding roller (1); a pressure roller (4) in contact with the bottom of the winding roller (1) is rotatably mounted in the roller frame; an elastic rod (5) is installed between the roller frame and the bottom plate (2); a driving shell (6) is installed at the side wall of one of the side plates (3); one end of the winding roller (1) is coaxially connected to a rotating tube (7) extending into the driving shell (6); a driving mechanism for driving the rotating tube (7) to rotate is installed on the driving shell (6); a movable plate (8) is provided in the driving shell (6); a friction member (9) that can be inserted into the rotating tube (7) is installed on one side of the movable plate (8); and a linkage assembly is installed between the movable plate (8) and the roller frame.

2. A film slitting machine winding mechanism according to claim 1, characterized in that: The driving mechanism comprises a motor (10) mounted on a side wall of a driving housing (6); a rotating rod (11) extending into the driving housing (6) is mounted on the output end of the motor (10); a guide assembly is mounted between the rotating rod (11) and the movable plate (8); sprockets are mounted on the rotating rod (11) and the rotating tube (7), and a chain (12) is mounted on both the sprockets.

3. A film slitting machine winding mechanism according to claim 1, characterized in that: The friction member (9) comprises a fixed rod (901) and an elastic sleeve (902) sleeved on the fixed rod (901); the elastic sleeve (902) partially extends into the rotating tube (7) and fits with the inner wall of the rotating tube (7).

4. A film slitting machine winding mechanism according to claim 2, characterized in that: The guide assembly comprises a fixed plate (13) sleeved on the rotating rod (11), the fixed plate (13) being mounted on the upper surface inside the driving shell (6), and a guide rod being slidably inserted on the fixed plate (13), one end of the guide rod being connected to the movable plate (8), and a first spring (14) sleeved on the guide rod being mounted between the movable plate (8) and the fixed plate (13).

5. The film slitting machine winding mechanism according to claim 1, characterized in that: The linkage assembly comprises a through slot (15) provided on the side plate (3), a pressure rod connected to a roller frame being movably arranged in the through slot (15), a pull rope (16) being connected between the pressure rod and the movable plate (8), and a guide wheel (17) for winding the pull rope (16) being rotatably installed in the drive housing (6).

6. A film slitting machine winding mechanism according to claim 1, characterized in that: The elastic rod (5) comprises a plurality of support tubes (501) mounted on the bottom plate (2), an insertion rod (502) of an inverted T-shaped structure being slidably inserted in the support tube (501), the top end of the insertion rod (502) being connected to a roller frame, and the bottom end of the insertion rod (502) being connected to a second spring (503) mounted in the support tube (501).

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