Roll changing, pressing and cutting mechanism

Abstract

The utility model discloses a roll changing down-pressing cutting mechanism which comprises a bottom frame, a cutting frame, a first oscillating cylinder, a second oscillating cylinder and a pressing roller, the top of the bottom frame is hinged to the cutting frame, and the first oscillating cylinder is used for driving the cutting frame to swing up and down; according to the mechanism, the cutting frame and the first swing air cylinder are arranged to drive the cutting frame to swing downwards to be close to a film, then the second swing air cylinder and the pressing roller are arranged to drive the pressing roller to swing downwards to press the film so as to facilitate follow-up film cutting, the multiple cutting knives are arranged to cut the film, the overall structure is practical, and the practicability is high. The cutting process is fast and convenient and the cutting quality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, in particular to a roll-changing downward pressing and cutting mechanism. Background Art

[0002] Film is a thin and soft transparent sheet made of plastic, adhesive, rubber or other materials. It can be a transparent solid, liquid or a thin layer of gas sandwiched between two pieces of glass. After the production of existing films is completed, the films need to be rolled up. After a roll of film is rolled up, the film needs to be cut to facilitate subsequent roll replacement and continued winding. However, the existing film cutting mechanism is relatively simple and the cutting quality is average. Although a small number of mechanisms have higher cutting quality, the overall structure is relatively complex. The announcement number is CN209259264U, which relates to a transverse cutting device suitable for film production line roll change, including a cutting arm bracket, a cutting arm, two transmission motors and a blower; the two transmission motors are respectively fixed at the two ends of the cutting arm, and the output end of any transmission motor is connected to a driving wheel, a partition is installed in the middle of the cutting arm, and driven wheels are installed on both sides of the partition; any of the driven wheels and the driving wheel on the same side are connected through a transmission belt, and a cutting knife is fixed on the transmission belt, and the cutting knife is located in the cutting groove and extends below the cutting arm; a starting point limit switch is respectively provided at the two ends of the cutting arm, and an end point limit switch is respectively provided on both sides of the partition; the utility model can greatly improve the success rate of film roll change cutting, and control the edge running of the surface layer of the transfer film mother roll when changing rolls, and effectively avoid the problems of production capacity, safety and quality caused by poor roll change. Although the device effectively avoids the problems of production capacity, safety and quality caused by poor roll change, the overall structure is relatively complex. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model aims to provide a simple and practical roll-changing downward pressing and cutting mechanism.

[0004] To achieve the above-mentioned purpose, the solution provided by the utility model is: a roll-changing downward pressure cutting mechanism, including a base frame, a cutting frame, a first swing cylinder, a second swing cylinder, and a pressure roller. The cutting frame is hinged on the top of the base frame, and the first swing cylinder is used to drive the cutting frame to swing up and down. The cutting frame is hinged with a swing frame, and the pressure roller is rotatably connected to the swing frame. The pressure roller is used to press down the film, and the second swing cylinder is used to drive the swing frame to swing. A cross frame is provided at the end of the cutting frame, and a plurality of cutting knives are provided on the cross frame. The plurality of cutting knives are arranged in sequence along the length direction of the cross frame, and the plurality of cutting knives are used to cut the film.

[0005] The beneficial effects of the utility model are: the film can be pressed down and quickly cut. The mechanism drives the cutting frame to swing downward close to the film by setting a cutting frame and a first swinging cylinder, and then drives the pressure roller to swing downward to press the film by setting a second swinging cylinder and a pressure roller, so as to facilitate the subsequent cutting of the film. Then, multiple cutting knives are set to cut the film. The overall structure is practical, the cutting process is fast and simple, and the cutting quality is high.

[0006] Furthermore, a frame is arranged on the base frame, the frame is arranged vertically, two first rotating seats are arranged on the top of the frame, the two first rotating seats are rotatably connected with a first rotating shaft, and the cutting frame is mounted on the first rotating shaft.

[0007] Furthermore, the first rotating shaft end is provided with a first connecting block, the frame is hingedly connected to the first swing cylinder, and the piston rod of the first swing cylinder is hingedly connected to the first connecting block. After the utility model adopts the above structure, the cutting frame can be driven to swing.

[0008] Furthermore, two first guide rollers are rotatably connected to the frame, and the two first guide rollers are arranged at intervals up and down. After the utility model adopts the above structure, the film can be guided.

[0009] Furthermore, two second rotating seats are provided on the frame, and the two second rotating seats are connected to the arc roller for rotation together, and one of the second rotating seats is provided with a locking screw, and the locking screw is used to fix the arc roller on the second rotating seat, wherein the locking screw is mounted with a hand wheel.

[0010] Furthermore, the cutting frame is rotatably connected to a second rotating shaft, and the swing frame is arranged on the second rotating shaft.

[0011] Furthermore, the second shaft end is sleeved with a second connection block, the cutting frame is hingedly connected to the second swing cylinder, and the piston rod of the second swing cylinder is hingedly connected to the second connection block. After the utility model adopts the above structure, it can drive the pressure roller to swing.

[0012] Furthermore, the horizontal frame is provided with a plurality of translation cylinders, which are arranged in sequence along the length direction of the horizontal frame, and the translation cylinders are arranged in a horizontal direction, and the translation cylinders are connected to the cutting knife, and the translation cylinders are used to drive the cutting knife to move and cut the film. After the utility model adopts the above structure, it can drive the cutting knife to move and cut the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 .

[0014] Figure 2The overall structure of the utility model is three-dimensional Figure 2 .

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0016] Figure 4 The overall structure of the utility model is three-dimensional Figure 3 .

[0017] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0018] Among them, 1 is a base frame, 11 is a frame, 12 is a first rotating seat, 13 is a first rotating shaft, 131 is a first connecting block, 14 is a first swing cylinder, 15 is a first guide roller, 16 is a second rotating seat, 161 is a locking screw, 162 is a hand wheel, 17 is an arc roller, 2 is a cutting frame, 21 is a second swing cylinder, 22 is a horizontal frame, 23 is a cutting knife, 24 is a translation cylinder, 25 is a pressure roller, 26 is a second rotating shaft, 261 is a second connecting block, and 27 is a swing frame. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] See attached Figure 1 To Attachment Figure 5As shown, a roll-changing downward pressing and cutting mechanism comprises a base frame 1, a cutting frame 2, a first swinging cylinder 14, a second swinging cylinder 21, and a pressure roller 25. The cutting frame 2 is hinged on the top of the base frame 1. The first swinging cylinder 14 is used to drive the cutting frame 2 to swing up and down. A swinging frame 27 is hinged on the cutting frame 2. The swinging frame 27 is rotatably connected to the pressure roller 25. The pressure roller 25 is used to press down the film. The second swinging cylinder 21 is used to drive the swinging frame 27 to swing. A cross frame 22 is arranged at the end of the cutting frame 2. A plurality of cutting knives 23 are arranged on the cross frame 22. The plurality of cutting knives 23 are arranged in sequence along the length direction of the cross frame 22. The plurality of cutting knives 23 are used to cut the film.

[0022] In this embodiment, a frame 11 is disposed on the base frame 1, the frame 11 is vertically disposed, two first rotating seats 12 are disposed on the top of the frame 11, the two first rotating seats 12 are rotatably connected to a first rotating shaft 13, and the cutting frame 2 is mounted on the first rotating shaft 13.

[0023] In this embodiment, a first connecting block 131 is mounted on the end of the first rotating shaft 13 , the first swing cylinder 14 is hinged on the frame 11 , and the piston rod of the first swing cylinder 14 is hinged on the first connecting block 131 .

[0024] In this embodiment, two first guide rollers 15 are rotatably connected to the frame 11, and the two first guide rollers 15 are arranged at an interval up and down.

[0025] In this embodiment, two second rotating seats 16 are provided on the frame 11, and the two second rotating seats 16 are connected to an arc roller 17 for rotation together. A locking screw 161 is provided on one of the second rotating seats 16, and the locking screw 161 is used to fix the arc roller 17 on the second rotating seat 16, wherein a hand wheel 162 is mounted on the locking screw 161.

[0026] In this embodiment, a second rotating shaft 26 is rotatably connected to the cutting frame 2 , and a swing frame 27 is disposed on the second rotating shaft 26 .

[0027] In this embodiment, a second connecting block 261 is mounted on the end of the second rotating shaft 26 , the second swing cylinder 21 is hingedly connected to the cutting frame 2 , and the piston rod of the second swing cylinder 21 is hingedly connected to the second connecting block 261 .

[0028] In this embodiment, a plurality of translation cylinders 24 are arranged on the horizontal frame 22, and the plurality of translation cylinders 24 are arranged in sequence along the length direction of the horizontal frame 22. The translation cylinders 24 are arranged in a horizontal direction, and the translation cylinders 24 are connected to the cutting knife 23. The translation cylinders 24 are used to drive the cutting knife 23 to move to cut the film.

[0029] In this embodiment, the specific roll-changing downward pressing and cutting process is as follows: when the film is wound up once to form a film roll, another winding roller needs to be replaced for winding, and the whole machine needs to be stopped, and then the first swing cylinder 14 of this embodiment is started, and the piston rod of the first swing cylinder 14 is extended and retracted to drive the connecting block 131 to rotate, thereby driving the first rotating shaft 13 to rotate, and realizing driving the cutting frame 2 to swing downward, so that the cutting frame 2 moves downward close to the film;

[0030] Until the cutting frame 2 swings down to the set angle, so that the multiple cutting knives 23 touch the film downward respectively, and then start the second swing cylinder 21, the piston rod of the second swing cylinder 21 is extended and retracted to drive the second connecting block 261 to rotate, thereby driving the second rotating shaft 26 to rotate, and driving the swing frame 27 and the pressure roller 25 to swing, until the pressure roller 25 presses down on the film, so that the multiple cutting knives 23 are close to the film, and then start the multiple translation cylinders 24 respectively, the piston rods of the translation cylinders 24 are extended and retracted to drive the cutting knives 23 to translate back and forth left and right, so as to achieve cutting of the film, so as to facilitate the subsequent film roll change.

[0031] The embodiments described above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any technician familiar with the field can use the above disclosed technical content to make more possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent and equivalent changes made according to the idea of ​​the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A roll-changing downward pressure cutting mechanism, comprising a base frame (1), a cutting frame (2), a first swing cylinder (14), a second swing cylinder (21), and a pressure roller (25), characterized in that: The cutting frame (2) is hingedly connected to the top of the base frame (1); the first swing cylinder (14) is used to drive the cutting frame (2) to swing up and down; a swing frame (27) is hingedly connected to the cutting frame (2); the swing frame (27) is rotatably connected to the pressure roller (25); the pressure roller (25) is used to press down the film; the second swing cylinder (21) is used to drive the swing frame (27) to swing; a cross frame (22) is provided at the end of the cutting frame (2); a plurality of cutting knives (23) are provided on the cross frame (22); the plurality of cutting knives (23) are arranged in sequence along the length direction of the cross frame (22); and the plurality of cutting knives (23) are used to cut the film.

2. The roll-changing downward pressing and cutting mechanism according to claim 1, characterized in that: A frame (11) is arranged on the base frame (1), the frame (11) is arranged vertically, two first rotating seats (12) are arranged on the top of the frame (11), the two first rotating seats (12) are rotatably connected to a first rotating shaft (13), and the cutting frame (2) is mounted on the first rotating shaft (13).

3. The roll-changing downward pressing and cutting mechanism according to claim 2, characterized in that: The end of the first rotating shaft (13) is sleeved with a first connecting block (131); the first swing cylinder (14) is hingedly connected to the frame (11); and the piston rod of the first swing cylinder (14) is hingedly connected to the first connecting block (131).

4. The roll-changing downward pressing and cutting mechanism according to claim 2, characterized in that: The frame (11) is rotatably connected to two first guide rollers (15), and the two first guide rollers (15) are arranged at an interval up and down.

5. The roll-changing downward pressing and cutting mechanism according to claim 2, characterized in that: Two second rotating seats (16) are arranged on the frame (11), and the two second rotating seats (16) are rotatably connected to an arc roller (17), and one of the second rotating seats (16) is provided with a locking screw (161), and the locking screw (161) is used to fix the arc roller (17) on the second rotating seat (16), wherein a hand wheel (162) is mounted on the locking screw (161).

6. The roll-changing downward pressing and cutting mechanism according to claim 3, characterized in that: The cutting frame (2) is rotatably connected to a second rotating shaft (26), and the swing frame (27) is arranged on the second rotating shaft (26).

7. The roll-changing downward pressing and cutting mechanism according to claim 6, characterized in that: A second connecting block (261) is sleeved on the end of the second rotating shaft (26); the second swing cylinder (21) is hingedly connected to the cutting frame (2); and the piston rod of the second swing cylinder (21) is hingedly connected to the second connecting block (261).

8. The roll-changing downward pressing and cutting mechanism according to claim 7, characterized in that: A plurality of translation cylinders (24) are arranged on the cross frame (22). The plurality of translation cylinders (24) are arranged in sequence along the length direction of the cross frame (22). The translation cylinders (24) are arranged in a horizontal direction. The translation cylinders (24) are connected to the cutting knife (23). The translation cylinders (24) are used to drive the cutting knife (23) to move and thereby cut the film.

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