Compound machine cutter device capable of preventing roll core from wrinkling

Abstract

The utility model relates to the relevant technical field of film material winding in a compound machine, in particular to a compound machine cutter device capable of preventing a winding core from wrinkling, which comprises a rack and a cutting component arranged on the rack, a winding position for winding a film material is arranged at the side end of the rack, a winding roller is arranged at the winding position, and the cutting component is arranged on the rack. The rack is further provided with a pressing roller assembly used for pressing and placing a film material on the winding roller before cutting. The cutting assembly comprises an adjusting part and a cutting part capable of moving to a cutting position under the action of the adjusting part, the cutting part comprises a swing arm part rotationally connected with the adjusting part, a driving unit used for driving the swing arm part to rotate, a cutting knife and a brush, the cutting knife and the brush are installed on the swing arm part, and the swing arm part drives the cutting knife and the brush to swing. The cutting knife and the brush are driven to sequentially execute cutting and smoothing actions, cut stub bars are evenly brushed to be flat and tightly attached to the winding roller, the cut stub bars can be effectively prevented from curling, the problem of wrinkles caused by curling is avoided, and winding smoothness is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field related to the winding of film materials in a laminator, and specifically relates to a cutting knife device of a laminator for preventing wrinkles on a winding core. Background Technique

[0002] A laminator is a device used to laminate different materials (such as films, papers, etc.) together through adhesives or hot pressing, and is widely used in industries such as packaging and printing.

[0003] After the processing is completed, the film material needs to be wound. Usually, an automatic tension control system is equipped, which can adjust the pressure of the pressure roller through a cylinder or a motor to ensure the flatness of the material during the winding process. When a winding roller finishes winding, another winding roller needs to be replaced. At this time, the process of cutting the film material is involved. However, since the film material is always in a state of having a certain tension during the winding process, when the film material is cut, the cut material head is prone to curling. Directly winding the cut film material head onto a new winding roller is likely to form wrinkles, affecting the subsequent winding effect. Content of the Utility Model

[0004] The purpose of the utility model is to provide a cutting knife device of a laminator for preventing wrinkles on a winding core to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A cutting knife device of a laminator for preventing wrinkles on a winding core, including a frame and a cutting component installed on the frame. A winding position for winding the film material is arranged at the side end of the frame, and a winding roller is arranged at the winding position. A pressure roller component for pressing and placing the film material onto a new winding roller before cutting is also installed on the frame; the cutting component includes an adjusting part and a cutting part that can move to the cutting position under the action of the adjusting part. Among them, the cutting part includes a swing arm part rotatably connected to the adjusting part, a driving unit for driving the swing arm part to rotate, and a cutting knife and a brush installed on the swing arm part. The swing arm part drives the cutting knife and the brush to swing, so that the cutting knife and the brush perform cutting and smoothing actions in sequence.

[0006] The cutting knife device of a laminator for preventing wrinkles on a winding core as described above: The adjusting part includes a rotating frame. Rotating positions and installation positions are formed at both ends of the rotating frame. The rotating positions are rotatably connected to the frame through rotating shafts, and the swing arm part is rotatably installed at the installation positions; it also includes a first cylinder installed on the frame and used to drive the rotating frame to rotate.

[0007] The cutting knife device of a laminator for preventing wrinkles on a winding core as described above: The swing arm part includes a swing arm rotatably connected to the rotating frame and driven to swing by the driving unit. The cutting knife and the brush are installed at one end of the swing arm far from the rotating frame.

[0008] The cutting knife device of the laminating machine for preventing core wrinkles as described above: The plane where the cutting knife is located is perpendicular to the plane where the brush is located.

[0009] The cutting knife device of the laminating machine for preventing core wrinkles as described above: The driving unit includes: a gear fixed to a connecting shaft that connects the rotating frame to the swing arm, and an arc-shaped toothed plate that meshes with the gear and is rotatably installed on the rotating frame. The arc-shaped toothed plate is driven to rotate by a third air cylinder installed on the rotating frame.

[0010] The cutting knife device of the laminating machine for preventing core wrinkles as described above: A limiting block is fixed on the arc-shaped toothed plate, and an elastic telescopic member is installed on the rotating frame. Before the cutting knife performs a cutting action, the limiting block presses against the elastic telescopic member to store elastic potential energy in the elastic telescopic member.

[0011] The cutting knife device of the laminating machine for preventing core wrinkles as described above: The pressure roller assembly includes a movable frame rotatably installed on the machine frame, and a pressure roller is rotatably installed at one end of the movable frame; it also includes a second air cylinder hinged on the machine frame, and the movable end of the second air cylinder is hinged to the movable frame.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: When it is necessary to replace the winding roller, the provided pressure roller assembly will tightly press the film material against the new winding roller. The adjusting member adjusts the swing arm to the cutting position, and the driving unit is started to drive the cutting knife to swing quickly to precisely cut the film material. At the same time, as the swing arm rotates, the brush evenly brushes and flattens the cut material head and tightly attaches it to the new winding roller, ensuring that the material head is smoothly attached to the new winding roller, effectively preventing the wrinkling problem caused by the curling of the cut material head and ensuring the flatness of subsequent winding. Description of the Drawings

[0013] Figure 1 It is a structural schematic diagram of the cutting knife device of the laminating machine for preventing core wrinkles;

[0014] Figure 2 It is a structural schematic diagram of the cutting knife device of the laminating machine for preventing core wrinkles from another angle;

[0015] Figure 3 It is a front view of the cutting knife device of the laminating machine for preventing core wrinkles;

[0016] Figure 4 It is for Figure 3 The sectional view in the A-A direction in

[0017] Figure 5 It is a structural schematic diagram of the cutting member in the cutting knife device of the laminating machine for preventing core wrinkles;

[0018] Figure 6 It is forFigure 5 Enlarged view of the structure at B in the middle;

[0019] Figure 7 Position change diagram of the cutting knife and brush of the cutting knife device of the laminating machine to prevent the core from wrinkling when performing actions.

[0020] In the figure: 1-frame, 2-rotating frame, 3-first cylinder, 4-movable frame, 5-pressure roller, 6-second cylinder, 7-rotating shaft, 8-connecting roller, 9-swing arm, 10-cutting knife, 11-brush, 12-third cylinder, 13-arc-shaped toothed plate, 14-gear, 15-limit block, 16-elastic telescopic member, 17-fixed frame. Specific implementation mode

[0021] The following will describe in detail various exemplary embodiments, features and aspects of the present application with reference to the drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0022] The special term "exemplary" here means "serving as an example, embodiment or illustrative". Any embodiment described as "exemplary" here does not have to be construed as superior or better than other embodiments.

[0023] In addition, in order to better illustrate the present application, numerous specific details are given in the following specific embodiments. Those skilled in the art should understand that the present application can also be implemented without some specific details. In some instances, methods, means, and elements well known to those skilled in the art are not described in detail in order to highlight the gist of the present application.

[0024] Please refer to Figures 1 - 7 , in the embodiment of the present invention, a cutting knife device of a laminating machine for preventing the core from wrinkling includes a frame 1 and a cutting assembly installed on the frame 1. A winding position for winding the film material is provided at the side end of the frame 1, and a winding roller is provided at the winding position. A pressure roller assembly for pressing and placing the film material on a new winding roller before cutting is also installed on the frame 1; the cutting assembly includes an adjusting member and a cutting member that can be moved to the cutting position under the action of the adjusting member. Among them, the cutting member includes a swing arm member rotatably connected to the adjusting member, a driving unit for driving the swing arm member to rotate, and a cutting knife 10 and a brush 11 installed on the swing arm member. The swing arm member drives the cutting knife 10 and the brush 11 to swing, so that the cutting knife 10 and the brush 11 perform cutting and smoothing actions successively.

[0025] In this embodiment, please refer to Figure 7, there are two winding rollers arranged at the winding position. One winding roller is close to the frame 1, and the other winding roller is far from the frame 1. When the winding roller needs to be replaced, the wound-up winding roller is flipped from the position close to the frame 1 to the position far from the frame 1. At this time, the new winding roller is located at the position close to the frame 1. The pressure roller assembly presses the film material onto the new winding roller and then cooperates with the cutting assembly for cutting and smoothing.

[0026] Specifically, when the winding roller continuously performs the winding operation, both the pressure roller assembly and the cutting assembly are separated from the film material. Once the winding is completed and the winding roller needs to be replaced, at this time, the film material has not been cut and remains in a tensioned state. The pressure roller assembly will tightly press the film material against the new winding roller. Subsequently, the adjusting member adjusts the swing arm member to the cutting position, and the driving unit is activated to drive the cutting knife 10 to swing rapidly, precisely cutting the film material. At the same time, as the swing arm member rotates, the brush 11 evenly brushes and flattens the cut material head and closely adheres it to the new winding roller, ensuring that the material head is aligned flatly with the new winding roller, effectively preventing the wrinkling problem caused by the curling of the cut material head and ensuring the flatness of the winding.

[0027] Please refer to Figure 7 , Figure 7 shows schematic diagrams of 5 different states from left to right, which are respectively defined as state a, state b, state c, state d, and state e. Among them, in state a, after the winding roller is flipped, the new winding roller is in the position close to the frame 1. In state b, the pressure roller assembly and the cutting assembly are adjusted to the preparatory cutting state. In state c, the pressure roller assembly abuts against the new winding roller, and the cutting assembly starts to perform the cutting and smoothing actions. In state d, the pressure roller assembly remains in the abutting state with the new winding roller, and the cutting assembly has completed the cutting and smoothing actions. In state e, the new winding roller continuously performs the winding action, and the pressure roller assembly and the cutting assembly are reset.

[0028] Furthermore, please refer to Figures 1 - 4 , the adjusting member includes a rotating frame 2. Both ends of the rotating frame 2 are formed with a rotating position and a mounting position. The rotating position is rotatably connected to the frame 1 through a rotating shaft 7, and the swing arm member is rotatably installed at the mounting position; it also includes a first cylinder 3 installed on the frame 1 and used to drive the rotating frame 2 to rotate.

[0029] Among them, two of the rotating frames 2 are symmetrically arranged and are in a plate-like structure. The two rotating frames 2 can be fixed through a connecting bracket or the like to form an integral frame structure. The provided rotating shaft 7 is fixedly connected to the frame 1, and the rotating frame 2 is rotatably connected to the rotating shaft 7. By setting the first cylinder 3, the rotating frame 2 can be driven to swing, thereby driving the whole (the above-mentioned cutting member) installed on the rotating frame 2 to move towards or away from the film material, and at the same time, the initial cutting position of the cutting member can be effectively adjusted according to the winding thickness to meet different cutting requirements.

[0030] In actual operation, when it is necessary to replace the winding roller and perform cutting, the operator only needs to start the first cylinder 3. When the piston rod of the cylinder extends or retracts, it can push or pull the rotating frame 2 to rotate around the rotating shaft 7, thereby driving the cutting member to move towards the film material or away from the film material position. By precisely controlling the stroke and speed of the first cylinder 3, precise adjustment of the cutting position can be achieved, ensuring that each cutting can achieve the expected effect.

[0031] In addition, since the rotating frame 2 is arranged in a plate-like structure, and the two rotating frames 2 are fixed by connection brackets and other components to form an integral frame structure, the structure of the entire cutting assembly is more compact and stable, which is beneficial to improving the cutting accuracy and efficiency.

[0032] Please refer to Figure 4 and Figure 5 As shown, the swing arm member includes a swing arm 9 that is rotatably connected to the rotating frame 2 and is driven by a driving unit to swing. The cutting knife 10 and the brush 11 are installed at one end of the swing arm 9 away from the rotating frame 2. Preferably, in one embodiment, the plane where the cutting knife 10 is located is perpendicular to the plane where the brush 11 is located.

[0033] Among them, the swing arm 9 is composed of two plate members. The two plate members are symmetrically arranged and fixed by a fixing frame 17. The cutting knife 10 and the brush 11 are installed on the fixing frame 17. Please refer to Figure 7 As shown, when performing the cutting and leveling actions, the cutting knife 10 rotates clockwise under the action of the swing arm 9, first cuts the film material, and then the brush 11 levels the cut material head on the winding roller, ensuring that the material head is aligned flat with the winding roller, which can effectively prevent the wrinkling problem caused by the curling of the cut material head and ensure the flatness of the winding.

[0034] Please refer to Figure 5 、 Figure 6 and Figure 7 As shown, the driving unit includes a gear 14 fixed to a connecting shaft connecting the swing arm 9 to the rotating frame 2 and an arc-shaped tooth plate 13 that meshes with the gear 14 and is rotatably installed on the rotating frame 2. The arc-shaped tooth plate 13 is driven to rotate by a third cylinder 12 installed on the rotating frame 2. Among them, a limiting block 15 is fixed on the arc-shaped tooth plate 13, and an elastic telescopic member 16 is installed on the rotating frame 2. Before the cutting knife 10 performs the cutting action, the limiting block 15 presses against the elastic telescopic member 16 to store elastic potential energy in the elastic telescopic member 16.

[0035] When the cutting action is not performed, the piston rod of the third cylinder 12 is in the extended state. At this time, the limiting block 15 presses against the elastic telescopic member 16, and the elastic telescopic member 16 stores elastic potential energy. When cutting is required, the third cylinder 12 instantaneously shortens, driving the arc-shaped toothed plate 13 to rotate, thereby driving the gear 14 to rotate rapidly. The elastic telescopic member 16 provides a certain initial acceleration for the rotation of the arc-shaped toothed plate 13, which can effectively improve the instantaneous rotation speed of the arc-shaped toothed plate 13. When the gear 14 rotates, it drives the swing arm 9 to rotate, thereby realizing the synchronous and rapid rotation of the cutting knife 10 and the brush 11, and successively performing the cutting and brushing actions.

[0036] At this time, under the action of high-speed rotation, the cutting knife 10 can quickly and accurately complete the cutting of the film material to ensure the cutting effect. The brush 11 also rotates rapidly with the swing arm 9, and evenly brushes the cut material head onto the winding roller. The whole process is efficient and coherent, greatly improving the production efficiency. At the same time, due to the release of the stored energy of the elastic telescopic member 16, it provides additional power for the rotation of the arc-shaped toothed plate 13, making the rotation of the cutting knife 10 and the brush 11 faster and more powerful, further ensuring the quality of cutting and brushing.

[0037] Further, please refer to Figure 1 、 Figure 2 and Figure 4 . The pressure roller assembly includes a movable frame 4 rotatably mounted on the frame 1, and a pressure roller 5 is rotatably mounted at one end of the movable frame 4; it also includes a second cylinder 6 hinged on the frame 1, and the movable end of the second cylinder 6 is hinged to the movable frame 4.

[0038] The movable frame 4 includes two symmetrically arranged lever frames. The lever frames are rotatably connected to the rotating shaft 7, and the connecting shaft of the pressure roller 5 is rotatably connected to one end of the lever frame. A connecting roller 8 is fixed at the other end of the lever frame. The setting of the connecting roller 8 can effectively improve the synchronization and stability of the rotation of the connection between the two lever frames. When the second cylinder 6 is started, the telescopic movement of its piston rod is transmitted to the movable frame 4 through the hinge point, driving the two lever frames to rotate synchronously around the rotating shaft 7. During this process, the pressure roller 5 moves with one end of the lever frame to realize the stable pressing of the film material, which helps the cutting knife 10 to perform more precise cutting and ensures that the film material does not become loose. At the same time, the brush 11 can also obtain a more uniform contact pressure when brushing the material head, further improving the quality and efficiency of the overall operation.

[0039] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0040] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A composite machine cutting device for preventing core wrinkles, comprising a frame (1) and a cutting assembly mounted on the frame (1), a winding position for winding film material is arranged at a side end of the frame (1), and a winding roller is arranged at the winding position, and a pressing roller assembly for pressing the film material onto a new winding roller before cutting is also mounted on the frame (1); characterized in that: The cutting assembly comprises an adjusting member and a cutting member capable of moving to a cutting position under the action of the adjusting member, wherein the cutting member comprises a swing arm member rotatably connected to the adjusting member, a driving unit for driving the swing arm member to rotate, and a cutting knife (10) and a brush (11) mounted on the swing arm member, wherein the swing arm member drives the cutting knife (10) and the brush (11) to swing, so that the cutting knife (10) and the brush (11) successively perform cutting and smoothing actions.

2. The cutting device for a composite machine for preventing core wrinkles according to claim 1, characterized in that: The adjusting member comprises a rotating frame (2), with a rotating position and a mounting position formed at both ends of the rotating frame (2), the rotating position being rotatably connected to the frame (1) via a rotating shaft (7), and the swing arm member being rotatably mounted at the mounting position; and further comprising a first cylinder (3) mounted on the frame (1) and used for driving the rotating frame (2) to rotate.

3. The cutting device for a composite machine for preventing core wrinkles according to claim 2, characterized in that: The swing arm member comprises a swing arm (9) which is rotatably connected to the rotating frame (2) and driven to swing by a driving unit. The cutting knife (10) and the brush (11) are mounted on an end of the swing arm (9) away from the rotating frame (2).

4. The cutting device for a composite machine for preventing core wrinkles according to claim 3, characterized in that: The plane on which the cutting knife (10) is located is perpendicular to the plane on which the brush (11) is located.

5. The cutting device for a composite machine for preventing core wrinkles according to claim 3, characterized in that: The driving unit comprises: a gear (14) fixed to a connecting shaft connecting the swing arm (9) to the rotating frame (2), and an arc-shaped toothed plate (13) meshing with the gear (14) and rotatably mounted on the rotating frame (2); the arc-shaped toothed plate (13) is driven to rotate by a third cylinder (12) mounted on the rotating frame (2).

6. A composite machine cutting device for preventing core wrinkles according to claim 5, characterized in that: A limit block (15) is fixed on the arc-shaped tooth plate (13), and an elastic telescopic member (16) is installed on the rotating frame (2); before the cutting knife (10) performs a cutting action, the limit block (15) is pressed against the elastic telescopic member (16) so that the elastic telescopic member (16) stores elastic potential energy.

7. The cutting device for a composite machine for preventing core wrinkles according to claim 1, characterized in that: The pressure roller assembly comprises a movable frame (4) rotatably mounted on the frame (1), a pressure roller (5) being rotatably mounted on one end of the movable frame (4); and a second cylinder (6) hinged on the frame (1), a movable end of the second cylinder (6) being hinged to the movable frame (4).

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