Slitting mechanism for composite film

Abstract

The utility model discloses a slitting mechanism of a composite film, which comprises a rack, a lower pressing roller rotationally connected with the rack, a plurality of circular ring cutter pads fixedly connected with the outer wall of the lower pressing roller through fixing pieces, a motor fixedly connected with the rack, a motor output shaft in transmission connection with the end part of the lower pressing roller, and a rotating shaft rotationally connected with the rack, the two ends of the rotating shaft are fixedly connected with connecting arms respectively, an upper pressing roller is rotationally connected between the two connecting arms and located above a lower pressing roller, the upper pressing roller and the lower pressing roller are in transmission connection through a gear set, the end of the rotating shaft is fixedly connected with a worm gear, the side of the rack is rotationally connected with a worm, and the worm gear and the worm are meshed. And the upper compression roller is fixedly connected with a circular cutter corresponding to the circular cutter pad through a fixing piece. According to the utility model, the worm and the worm wheel are rotated to rotate the upper compression roller to be far away from the lower compression roller, the worm is stopped rotating, the upper compression roller is kept far away from the lower compression roller under the action of the worm wheel and the worm, and a composite film can pass through the space between the two rollers by only one person, so that the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite film production and processing, and in particular to a slitting mechanism for composite films. Background Technology

[0002] The composite film has good wear resistance and can be made into directional labels for various places. The composite film is pasted on the backing paper and cut into various shapes such as arrows, numbers and letters. When using it, the label is torn off from the backing paper and pasted in a conspicuous place. In the production process, the composite film is first pasted on the backing paper to form a double-layer film, and then the whole double-layer film is trimmed to the required size.

[0003] A slitting machine is used for cutting. The backing paper with the composite film attached is passed between the upper and lower pressure rollers of the slitting machine, which are equipped with circular cutters and circular cutter pads respectively. Then it is wound up on the winding equipment. The upper and lower pressure rollers drive the circular cutters and circular cutter pads to rotate in different directions. At the same time, the winding equipment pulls the backing paper and composite film. The circular cutter cuts the composite film and backing paper into the required shape. When the film is passed between the upper and lower pressure rollers, one worker needs to lift the upper pressure roller away from the lower pressure roller. After lifting, another worker passes the film between the two rollers and connects the film to the winding equipment. Then the upper pressure roller is lowered to press the composite film. Two people are needed for feeding, which reduces the utilization rate of labor resources and reduces production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a slitting mechanism for composite films, which has the advantage that the composite film can be passed between two rollers by one person.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A slitting mechanism for composite films includes a frame, a lower pressure roller rotatably connected to the frame, a gear fixedly connected to one end of the lower pressure roller, multiple circular blade pads passing through the outer wall of the lower pressure roller, the circular blade pads being fixedly connected to the lower pressure roller by fixing members, a motor fixedly connected to the frame, the motor output shaft being drivenly connected to the end of the lower pressure roller, a rotating shaft rotatably connected to the frame, connecting arms fixedly connected to both ends of the rotating shaft, an upper pressure roller rotatably connected between the two connecting arms, the upper pressure roller being located above the lower pressure roller, a gear fixedly connected to the end of the lower pressure roller, the gears meshing, a worm gear fixedly connected to the end of the rotating shaft, a worm rotatably connected to the side of the frame, the worm gear and worm meshing, and a circular cutter corresponding to the circular blade pads passing through the upper pressure roller, the circular cutter being fixedly connected to the upper pressure roller by fixing members.

[0007] Using the above technical solution, the rotating worm gear drives the connecting arm to rotate via the worm wheel. The connecting arm drives the upper pressure roller to rotate, moving it away from the lower pressure roller. Simultaneously, gears one and two disengage, stopping the rotation of the worm gear. Under the action of the worm gear and worm wheel, the upper pressure roller remains away from the lower pressure roller and will not rotate back. Then, the composite film passes between the upper and lower pressure rollers. The worm gear is rotated in the opposite direction, and the connecting arm drives the upper pressure roller closer to the composite film, causing the circular cutter to press the composite film. At the same time, gears one and two mesh, and the motor drives the lower pressure roller to rotate. The lower pressure roller drives the upper pressure roller to rotate via gears one and two. The upper pressure roller drives the circular cutter to rotate. Simultaneously, the winding device pulls the composite film to move, and the circular cutter cuts the composite film on the circular cutter pad, cutting it to the required size. This eliminates the need for one person to support the upper pressure roller while another person passes the composite film between the two rollers, increasing production efficiency.

[0008] Preferably, the fixing element is a bolt, and the circular blade pad and the circular blade are respectively provided with radial threaded holes, and bolts are passed through the threaded holes of both, with the ends of the bolts contacting the outer walls of the upper and lower pressure rollers.

[0009] Using the above technical solution, according to the size to be cut into the composite film, the bolts of the circular blade pad and the circular cutter are tightened respectively to reduce their force on the upper and lower pressure rollers. Then, the corresponding circular blade pad and the circular cutter are moved so that they are aligned with the position to be cut in the composite film. Then, the bolts are tightened so that the bolts are pressed against the upper and lower pressure rollers to fix the circular blade pad and the circular cutter. The upper and lower pressure rollers drive the two to rotate to cut the composite film.

[0010] Preferably, a handle is fixedly connected to the end of the worm gear.

[0011] The above technical solution facilitates the rotation of the worm gear.

[0012] Preferably, a collection box is placed below the pressure roller.

[0013] The above-mentioned technical solution is used to collect the scraps of the trimmed composite film.

[0014] Preferably, the system also includes two columns located on both sides of the frame. A collection chamber is fixedly connected between the upper ends of the two columns. A fan is fixedly connected to the top of the collection chamber, and an absorption pipe is fixedly connected to the bottom of the collection chamber. The opening of the absorption pipe is aligned with the location of the annular cutter.

[0015] The above technical solution absorbs the debris generated during the cutting of the composite membrane, thus avoiding harm to the environment and human health. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the embodiment;

[0017] Figure 2 This is a rear view of an embodiment;

[0018] Figure 3 This is a top view of an embodiment;

[0019] Figure 4 This is a side view of an embodiment;

[0020] Figure 5 This is a rear view of an embodiment;

[0021] Figure 6 This is an overall schematic diagram from another perspective of the embodiment.

[0022] Reference numerals in the attached diagram: 1. Frame; 2. Lower pressure roller; 3. Gear 1; 4. Circular cutter pad; 5. Motor; 6. Rotating shaft; 7. Connecting arm; 8. Upper pressure roller; 9. Gear 2; 10. Worm gear; 11. Worm; 12. Circular cutter; 13. Rotating handle; 14. Collection box; 15. Collection chamber; 16. Fan; 17. Absorption pipe. Detailed Implementation

[0023] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0024] See Figures 1 to 6A slitting mechanism for composite films includes a frame 1, a lower pressure roller 2 rotatably connected to the frame 1, and a gear 3 fixedly connected to one end of the lower pressure roller 2. A motor 5 is fixedly connected to the frame 1, and the output shaft of the motor 5 is connected to the end of the lower pressure roller 2 via a synchronous belt and synchronous pulley. A collection box 14 is placed below the lower pressure roller 2. A rotating shaft 6 is rotatably connected to the frame 1, with connecting arms 7 fixedly connected to both ends of the rotating shaft 6. An upper pressure roller 8 is rotatably connected between the two connecting arms 7, and the upper pressure roller 8 is located above the lower pressure roller 2. A gear 9 is fixedly connected to the end of the lower pressure roller 2, and gears 3 and 9 mesh with each other. A worm gear 10 is fixedly connected to the end of the rotating shaft 6, and a worm 11 is rotatably connected to the side of the frame 1. A handle 13 is fixedly connected to the end of the worm 11, and the worm gear 10 and worm 11 mesh. Multiple circular cutters 12 pass through the outer wall of the upper pressure roller 8, and circular cutter pads 4 corresponding to the circular cutters 12 pass through the outer wall of the lower pressure roller 2. Both the circular cutter pads 4 and the circular cutters 12 have radial threaded holes, and bolts pass through these holes. The ends of the bolts contact the outer walls of the upper and lower pressure rollers (2, 8). The system also includes two columns located on either side of the frame 1. A collection chamber 15 is fixedly connected between the upper ends of the two columns. A fan 16 is fixedly connected to the top of the collection chamber 15, and an absorption pipe 17 is fixedly connected to the bottom of the collection chamber 15, with the opening of the absorption pipe 17 aligned with the location of the circular cutters 12.

[0025] Working principle: Rotating the worm gear 11 drives the connecting arm 7 to rotate via the worm wheel 10. The connecting arm 7 drives the upper pressure roller 8 to rotate, moving it away from the lower pressure roller 2. Simultaneously, gears 3 and 9 disengage, stopping the rotation of the worm gear 11. Under the action of the worm gear 11, the upper pressure roller 8 remains away from the lower pressure roller 2 and will not rotate back. Then, the composite film is passed between the upper and lower pressure rollers (2, 8). According to the desired size of the composite film, the bolts of the circular cutter pad 4 and the circular cutter 12 are tightened to reduce their force on the upper and lower pressure rollers (2, 8). Then, the corresponding circular cutter pad 4 and circular cutter 12 are moved to align with the position of the composite film to be cut. Then tighten the bolts to press the upper and lower pressure rollers (2, 8) together, fixing the circular cutter pad 4 and the circular cutter 12. The upper and lower pressure rollers (2, 8) drive each other to rotate to trim the composite film. Rotate the worm gear 11 in the opposite direction, and the connecting arm 7 drives the upper pressure roller 8 to approach the composite film, and makes the circular cutter 12 press the composite film. At the same time, gear 1 3 and gear 2 9 mesh, and the motor 5 drives the lower pressure roller 2 to rotate. The lower pressure roller 2 drives the upper pressure roller 8 to rotate through gear 1 3 and gear 2 9. The upper pressure roller 8 drives the circular cutter 12 to rotate. At the same time, the winding device pulls the composite film to move. The circular cutter 12 cuts the composite film on the circular cutter pad 4 and cuts it into the required size.

Claims

1. A slitting mechanism for a composite film, comprising a frame (1), wherein a lower pressure roller (2) is rotatably connected to the frame (1), a gear (3) is fixedly connected to one end of the lower pressure roller (2), a plurality of circular ring blade pads (4) are passed through the outer wall of the lower pressure roller (2), the circular ring blade pads (4) are fixedly connected to the lower pressure roller (2) by fixing members, and a motor (5) is fixedly connected to the frame (1), the output shaft of the motor (5) being drively connected to the end of the lower pressure roller (2), characterized in that, The frame (1) is rotatably connected to a rotating shaft (6), and connecting arms (7) are fixedly connected to both ends of the rotating shaft (6). An upper pressure roller (8) is rotatably connected between the two connecting arms (7). The upper pressure roller (8) is located above the lower pressure roller (2). A gear two (9) is fixedly connected to the end of the lower pressure roller (2). The gear one (3) and gear two (9) mesh with each other. A worm gear (10) is fixedly connected to the end of the rotating shaft (6). A worm (11) is rotatably connected to the side of the frame (1). The worm gear (10) meshes with the worm gear (11). A circular cutter (12) corresponding to the circular cutter pad (4) passes through the upper pressure roller (8). The circular cutter (12) is fixedly connected to the upper pressure roller (8) through a fixing member.

2. The slitting mechanism for a composite film according to claim 1, characterized in that, The fastener is a bolt. The circular blade pad (4) and the circular blade (12) are respectively provided with radial threaded holes, and bolts are passed through the threaded holes of both. The ends of the bolts are in contact with the outer walls of the upper and lower pressure rollers (2, 8).

3. The slitting mechanism for a composite film according to claim 1, characterized in that, A handle (13) is fixedly connected to the end of the worm (11).

4. The slitting mechanism for a composite film according to claim 1, characterized in that, A collection box (14) is placed below the lower pressure roller (2).

5. The slitting mechanism for a composite film according to claim 1, characterized in that, It also includes two columns, which are located on both sides of the frame (1). A collection chamber (15) is fixedly connected between the upper ends of the two columns. A fan (16) is fixedly connected to the top of the collection chamber (15). An absorption pipe (17) is fixedly connected to the bottom of the collection chamber (15). The opening of the absorption pipe (17) is aligned with the location of the circular cutter (12).

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