Slitting device for rolled film

Abstract

The utility model discloses a slitting device for a rolled film. The slitting device comprises a base, two supporting rollers and a cutting mechanism. The disc cutter is limited on the upper side, and the positions of the two supporting rollers are adjusted according to the outer diameter of the rolled film; a rolled film is placed on the two supporting rollers; the rolled film is moved along the axis, so that the end of the rolled film exceeds the disc cutter, and the exceeding part is the part needing to be cut off; the cutting mechanism is started, and the disc cutter rotates and moves to the lower side for limiting; and the rolled film is rotated around the axis, so that the rolled film is completely cut by the disc cutter. The necessary condition that the disc cutter can cut the rolled film is that when the disc cutter is limited on the lower side, the edge of the disc cutter needs to penetrate out of the inner wall of a winding drum in the rolled film. The limiting of the lower side of the disc cutter is fixed, and correspondingly, the position of the rolled film can be adjusted up and down while the rolled film can be supported by adjusting the positions of the two supporting rollers. The device has the advantages of being simple in structure, convenient to operate and capable of well adapting to rolled films with different outer diameters.

Description

Technical Field

[0001] The utility model relates to cutting equipment, in particular to a slitting device for a rolled film. Background Art

[0002] A rolled film is a film that has been processed and wound around a reel. For the convenience of film processing and production, generally, a film with a relatively large width is processed, wound around a reel to form a rolled film, and then, according to the required width of the film, it is slit from one end of the rolled film. This slitting step is generally completed by a slitting device. Currently, the slitting device generally includes a tooling for limiting the rolled film and a cutting mechanism for cutting the rolled film. The tooling can be a placement table with an arc groove, and the inner wall of the arc groove is provided with a knife groove at the position corresponding to the tool of the cutting mechanism, so that the tool can cut the rolled film. The tool can be a disc cutter or a straight knife. There are still problems with the current slitting device: when the outer diameter of the rolled film changes, it cannot be well adjusted to adapt. Summary of the Utility Model

[0003] This application provides a slitting device for a rolled film, which can solve the problems raised in the background art.

[0004] In this application, a slitting device for a rolled film is provided, including:

[0005] A base, on both the first side position and the second side position in the horizontal direction, there are respectively provided a first mounting seat and a second mounting seat that can be adjusted and fixed in position horizontally along the longitudinal direction;

[0006] Two support rollers, one is rotatably connected to the two first mounting seats, and the other is rotatably connected to the two second mounting seats;

[0007] A cutting mechanism, arranged on the base; a disc cutter is adopted, and the disc cutter is between the first side position and the second side position of the base; when the disc cutter is limited at the lower side, the first mounting seat and the second mounting seat are respectively on both sides of the bottom position of the edge of the disc cutter.

[0008] In some embodiments, a driving mechanism is further included, arranged on the base, for adjusting the distance between the two support rollers, and the middle position between the two support rollers remains unchanged during the adjustment process.

[0009] In some embodiments, the driving mechanism includes:

[0010] Two modules adopting bidirectional lead screws, respectively arranged at the left side position and the right side position of the base, for the corresponding first mounting seat and the second mounting seat to be installed;

[0011] A rotating shaft, rotatably connected to the base, synchronously driving the bidirectional lead screws of the two lead screw modules to rotate.

[0012] In some embodiments, it further includes: a baffle for the rolled film on the two support rollers to abut against; and it can be adjusted horizontally in the fixed position on the base.

[0013] In some embodiments, the baffle is provided with through holes, and when the disc cutter is limited at the lower side, the bottom position of the edge corresponds to the center of the through holes.

[0014] In some embodiments, the moving track of the disc cutter is arc-shaped.

[0015] In summary, in the present application, a slitting device for a rolled film includes a base, two support rollers and a cutting mechanism. The disc cutter is limited at the upper side. According to the outer diameter of the rolled film, the positions of the two support rollers are adjusted; the rolled film is placed on the two support rollers; the rolled film is moved along the axis so that the end of the rolled film extends beyond the disc cutter, and the extended part is the part to be cut off; the cutting mechanism is started to make the disc cutter rotate and move to the lower side limit; the rolled film is rotated around the axis so that it is completely cut by the disc cutter. The necessary condition for the disc cutter to cut the rolled film is that when the disc cutter is limited at the lower side, the edge of the disc cutter needs to penetrate through the inner wall of the roll of the rolled film. The lower side limit of the disc cutter is fixed. Correspondingly, by adjusting the positions of the two support rollers again, while being able to support the rolled film, the position of the rolled film can be adjusted up and down. It has the beneficial effects: simple structure, convenient operation, and can well adapt to rolled films with different outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings required for use in the embodiments of the present application or the background art will be described below.

[0017] Figure 1 It is a top view of the present application;

[0018] Figure 2 It is Figure 1 a cross-sectional view along A-A in

[0019] Figure 3 It is a front view of the present application;

[0020] Figure 4 It is Figure 3 a cross-sectional view along B-B in

[0021] Figure 5 It is a top view of the present application after the baffle is provided;

[0022] Figure 6 A schematic diagram of the through holes on the baffle.

[0023] In the figure,

[0024] 1. Base; 1a. First mounting seat; 1b. Second mounting seat;

[0025] 2. Support roller

[0026] 3. Cutting mechanism; 3a. Fixed mounting part; 3b. Movable mounting part; 3c. Disc cutter; 3d. Motor

[0027] 4. Driving mechanism; 4a. Lead screw module; 4a1. Bi-directional lead screw; 4a2. Mounting slider; 4b. Rotating shaft; 4b1. Timing belt

[0028] 5. Baffle; 5a. Optical axis; 5b. Through hole Detailed implementation manners

[0029] The following further explanations are made in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in this disclosure should have the ordinary meaning understood by those of ordinary skill in the field to which this disclosure belongs. The "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , a slitting device for a rolled film, comprising a base 1, two support rollers 2 and a cutting mechanism 3.

[0031] On the opposite first side position and second position of the base 1, a first mounting seat 1a and a second mounting seat 1b are fixedly connected respectively. For the convenience of subsequent description of the orientation, the direction between the first side position and the second position is set as the transverse direction. The first mounting seat 1a and the second mounting seat 1b can also be horizontally adjusted longitudinally in the fixed position of the base 1. For example, sliding locks can be provided between the first mounting seat 1a, the second mounting seat 1b and the base 1, and the first mounting seat 1a and the second mounting seat 1b are manually slid to adjust the fixed position.

[0032] Two support rollers 2, one is rotatably connected to the two first mounting seats 1a, and the other is rotatably connected to the two second mounting seats 1b, that is, the two support rollers 2 can be horizontally adjusted longitudinally in the position of the base 1. The rolled film to be slit is placed on the two support rollers 2, and by adjusting the positions of the two support rollers 2, rolled films with different outer diameters can be adapted.

[0033] Please refer to Figure 2 and Figure 4 In some embodiments, the slitting device for the winding film further includes a driving mechanism 4. It is arranged on the base 1 to adjust the distance between the two supporting rollers 2, and the middle position between the two supporting rollers 2 remains unchanged during the adjustment process.

[0034] Adjusting the positions of the two supporting rollers 2 manually is relatively more difficult to achieve the effect that "the middle position between the two supporting rollers 2 remains unchanged during the adjustment process". By using the driving mechanism 4 to adjust the positions of the two supporting rollers 2, this effect can be more easily achieved. The beneficial effect of achieving this effect is that after adjusting the positions of the two supporting rollers 2, the axis of the placed winding film has no longitudinal offset and remains vertically aligned with the middle position between the two supporting rollers 2.

[0035] Furthermore, the driving mechanism 4 includes two screw rod modules 4a using a bidirectional screw rod 4a1 and a rotating shaft 4b.

[0036] The two screw rod modules 4a are respectively arranged at the left and right positions of the base 1 for the corresponding first mounting seat 1a and second mounting seat 1b to be installed. That is, the first mounting seat 1a and the second mounting seat 1b are respectively fixedly connected to the two mounting sliders 4a2 of the screw rod module 4a. By rotating the bidirectional screw rod 4a1, the first mounting seat 1a and the second mounting seat 1b can be driven to move symmetrically and in opposite directions.

[0037] The rotating shaft 4b is rotatably connected to the base 1, and the synchronous belt 4b1 drives the bidirectional screw rod 4a1 of the two screw rod modules 4a to rotate. More specifically, synchronous belts 4b1 are arranged between the rotating shaft 4b and the two bidirectional screw rods 4a1 for transmission. It can be manually rotating the rotating shaft 4b or using a motor 3d to drive the rotating shaft 4b to rotate.

[0038] Please refer to Figure 1 and Figure 3 The cutting mechanism 3 is arranged on the base 1 and uses a disc cutter 3c. More specifically, the cutting mechanism 3 may include a fixed mounting portion 3a fixedly connected to the base 1, a movable mounting portion 3b movably connected to the fixed mounting portion 3a, a disc cutter 3c rotatably connected to the movable mounting portion 3b, and a motor 3d arranged on the movable mounting portion 3b to drive the disc cutter 3c to rotate. The disc cutter 3c is between the first side position and the second side position of the base 1. By the movement of the movable mounting portion 3b relative to the fixed mounting portion 3a, the disc cutter 3c is driven to move. For example, the movable mounting portion 3b may slide up and down relative to the fixed mounting portion 3a, that is, the moving track of the disc cutter 3c is a vertical straight line.

[0039] Please refer to Figure 6, in some embodiments, the movable mounting portion 3b can also rotate relative to the fixed mounting portion 3a, that is, the movement trajectory of the disc cutter 3c is arc-shaped. More specifically, an elastic member (such as a torsion spring) can be provided between the movable mounting portion 3b and the fixed mounting portion 3a to limit the disc cutter 3c to the upper side. When the disc cutter 3c is limited to the lower side, the first mounting seat 1a and the second mounting seat 1b are respectively on both sides of the bottom position of the edge of the disc cutter 3c. More specifically, a stop block for blocking the movable mounting portion 3b can be provided on the fixed mounting portion 3a to limit the movable mounting portion 3b, so as to determine the lower limit and the upper limit of the disc cutter 3c.

[0040] Initially, the disc cutter 3c is limited to the upper side. According to the outer diameter of the wound film, the positions of the two support rollers 2 are adjusted. The slitting process is briefly described as follows:

[0041] S1. Place the wound film on the two support rollers 2;

[0042] S2. Move the wound film along the axis so that the end of the wound film extends beyond the disc cutter 3c, and the extended part is the part to be cut off;

[0043] S3. Start the cutting mechanism 3 to make the disc cutter 3c rotate and move to the lower limit position;

[0044] S4. Rotate the wound film around the axis so that it is completely cut by the disc cutter 3c.

[0045] It can be found that for the wound film, the necessary condition for the disc cutter 3c to cut it is that when the disc cutter 3c is limited to the lower side, the edge of the disc cutter 3c needs to pass through the inner wall of the winding drum of the wound film. The lower limit position of the disc cutter 3c is fixed. Correspondingly, the positions of the two support rollers 2 can be adjusted again to keep the wound film supported while adjusting the position of the wound film up and down.

[0046] Please refer to Figure 5 , in some embodiments, the slitting device for the wound film further includes a baffle 5. The baffle 5 is for the wound film on the two support rollers 2 to abut against. During the process of moving the wound film in the above step S3, it is more convenient and accurate to determine the position where the wound film needs to be moved to. The baffle 5 can be adjusted horizontally in the fixed position on the base 1. More specifically, a group of optical axes 5a can be fixedly connected to the baffle 5, and the optical axes 5a are slidably connected to the base 1 horizontally, and bolts for locking the optical axes 5a are also provided on the base 1.

[0047] Furthermore, the baffle 5 has a through hole 5b with a mark. When the disc cutter 3c is limited to the lower side, the bottom position of the edge corresponds to the center of the through hole 5b.

[0048] In this way, the rolled film can be observed through the through hole 5b on the baffle plate 5 to determine whether the disc cutter 3c can cut the rolled film. If not, the positions of the two support rollers 2 can be adjusted in a timely manner to move the rolled film upward by an appropriate distance.

Claims

1. A film slitting device, characterized in that: include: The base (1) is provided with a first mounting seat (1a) and a second mounting seat (1b) at a first lateral side position and a second lateral side position, which can be adjusted to a fixed position in a longitudinal horizontal direction; Two supporting rollers (2), one of which is rotatably connected to the two first mounting seats (1a), and the other of which is rotatably connected to the two second mounting seats (1b); A cutting mechanism (3) is arranged on the base (1); a disc cutter (3c) is used, and the disc cutter (3c) is between a first side position and a second side position of the base (1); when the disc cutter (3c) is limited at the lower side, the first mounting seat (1a) and the second mounting seat (1b) are respectively located on both sides of the bottom position of the edge of the disc cutter (3c).

2. A film slitting device according to claim 1, characterized in that: It also comprises a driving mechanism (4) which is arranged on the base (1) and is used to adjust the distance between the two supporting rollers (2), and the middle position between the two supporting rollers (2) remains unchanged during the adjustment process.

3. A film slitting device according to claim 2, characterized in that: The driving mechanism (4) comprises: Two modules using a bidirectional screw rod (4a1) are respectively arranged at the left and right sides of the base (1) for installation of the corresponding first mounting seat (1a) and second mounting seat (1b); The rotating shaft (4b) is rotatably connected to the base (1), and the synchronous belt (4b1) drives the bidirectional screws (4a1) of the two screw modules (4a) to rotate.

4. The film slitting device according to claim 1, characterized in that: Also includes: A baffle (5) for the rolled films on the two supporting rollers (2) to abut against; The fixed position of the base (1) can be adjusted in the transverse direction.

5. A film slitting device according to claim 4, characterized in that: The baffle (5) is provided with a through hole (5b), and when the disc cutter (3c) is limited at the lower side, the bottom position of the edge corresponds to the center of the through hole (5b).

6. A film slitting device according to claim 1, characterized in that: The moving track of the disc cutter (3c) is in the shape of an arc.

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