Film cutting device of full-automatic mechanical knife type film cutting machine

Abstract

The utility model relates to the technical field of film cutting devices, and discloses a film cutting device of a full-automatic mechanical knife type film cutting machine, which comprises a fixed frame, an adjusting mechanism and a limiting mechanism, the upper end of the fixed frame is provided with the adjusting mechanism, the adjusting mechanism comprises two placing rollers and a bidirectional threaded rod, the rear end of the two-way threaded rod is rotationally connected with the middle of the inner wall of the rear end of the fixing frame, the front end and the rear end of the outer wall of a rod body of the two-way threaded rod are both in threaded connection with moving blocks, and moving grooves are formed in the front end and the rear end of the upper end of the fixing frame. The two-way threaded rod in the adjusting mechanism is in threaded connection with the moving block, the moving block is in sliding connection with the moving groove in a matched mode, the distance between the two containing rollers can be conveniently changed, the limiting block in the limiting mechanism is in sliding connection with the cross rod, and the fastening bolt abuts against the cross rod, so that the distance between the two containing rollers can be conveniently adjusted. And a second servo motor is matched to drive a pressing threaded rod to drive an extension block to move, so that the position of the film roll is conveniently limited.

Description

Technical Field

[0001] This utility model relates to the field of film cutting device technology, and in particular to a film cutting device for a fully automatic mechanical blade film cutting machine. Background Technology

[0002] A fully automatic mechanical blade film cutter is a mechanical device that uses rotating blades to cut long film rolls into shorter pieces as needed. The film cutting device is its main cutting device, which can help workers cut film rolls and improve cutting speed.

[0003] However, most of the existing fully automatic mechanical knife-type film cutting machines on the market do not allow operators to easily adjust the distance between the rollers that hold the film roll, increasing the difficulty for operators to adjust the roller spacing according to the diameter of the film roll. In addition, most of the existing fully automatic mechanical knife-type film cutting machines on the market do not allow for restricting the position of the film roll, which can easily lead to deviation during the cutting process and reduce the cutting quality.

[0004] Therefore, those skilled in the art have provided a film-cutting device for a fully automatic mechanical blade film-cutting machine to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a film cutting device for a fully automatic mechanical blade film cutting machine. The device features a bidirectional threaded rod in the adjustment mechanism that is threadedly connected to a moving block, which in turn is slidably connected to a moving groove, facilitating the adjustment of the distance between the two placement rollers. The device also features a limiting block in the limiting mechanism that is slidably connected to a crossbar and secured by a fastening bolt against the crossbar. In conjunction with a second servo motor driving a downward threaded rod to move an extension block, the device facilitates the restriction of the film roll's position.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A film cutting device for a fully automatic mechanical blade film cutting machine includes a fixed frame, an adjustment mechanism, and a limiting mechanism. The upper end of the fixed frame is provided with an adjustment mechanism, which includes two placement rollers and a bidirectional threaded rod. The rear end of the bidirectional threaded rod is rotatably connected to the middle of the inner wall of the rear end of the fixed frame. The front end and rear end of the outer wall of the bidirectional threaded rod are threadedly connected with moving blocks. The front end and rear end of the upper end of the fixed frame are provided with moving grooves. The inner walls on both sides of the moving grooves are slidably connected to the moving blocks. The outer walls on both sides of the placement rollers are fixedly connected with bearings. A vertical frame is fixedly connected to the rear end of one side of the upper end of the fixed frame. The front end of the vertical frame is provided with a limiting mechanism.

[0008] The limiting mechanism includes two limiting blocks, a downward threaded rod, and two pressure rollers. A crossbar is fixedly connected to the middle of the inner wall on both sides of the fixed frame. The outer wall of the crossbar is slidably connected to the limiting block. A fastening bolt is threaded to the upper end of each limiting block. The lower end of each fastening bolt passes through the limiting block and fits against the crossbar. A sliding groove is provided on the other side of the outer wall at the front end of the upright frame. A second servo motor is provided on the top surface inside the sliding groove. The output shaft of the second servo motor is fixedly connected to the downward threaded rod. An extension block is threaded to the outer wall of the downward threaded rod. The rear ends of the outer walls on both sides of the extension block are slidably connected to the inner walls on both sides of the sliding groove.

[0009] Through the above technical solution, the bidirectional threaded rod and two moving blocks are threadedly connected, and the moving blocks are slidably connected to the moving groove opened on the fixed frame. This allows the rotating bidirectional threaded rod to drive the moving blocks to move along the moving groove with the placement rollers, which facilitates changing the distance between the two placement rollers. In addition, the limiting block is slidably connected to the crossbar fixed on the fixed frame, and the limiting block is fixed by using fastening bolts to abut against the crossbar. With the help of the second servo motor driving the downward threaded rod to rotate, the extension block moves along the slide groove, which facilitates the restriction of the position of the film roll.

[0010] Furthermore, support frames are fixedly connected to the four corners of the lower end of the fixed frame, and a PLC control panel is fixedly connected to the rear end of one side outer wall of the fixed frame.

[0011] The above technical solution increases the size of the device and the ground support surface by fixing the support frame at the lower end of the fixed frame, and reduces the weight of the entire device. The PLC control panel fixedly connected to the fixed frame makes it easy for staff to control the operation status of the device.

[0012] Furthermore, the front end of the bidirectional threaded rod passes through the fixed frame and is fixedly connected to a turntable, and the outer wall of the bearing is fixedly connected to the moving block;

[0013] By using the above technical solution, the front end of the bidirectional threaded rod passes through the fixed frame and is fixedly connected to the turntable, allowing the operator to apply force to the bidirectional threaded rod through the turntable, reducing the force required to rotate the bidirectional threaded rod. Meanwhile, the placement roller is connected to the moving block using bearings, reducing friction between the placement roller and the moving block and improving the smoothness of rotation.

[0014] Furthermore, a first servo motor is provided in the cavity on the other side inside one of the moving blocks, and the output shaft of the first servo motor passes through the moving block and is fixedly connected to the placement roller.

[0015] The above technical solution involves a first servo motor whose output shaft is fixedly connected to a placement roller via a moving block, which allows the film roll placed on the placement roller to be rotated, facilitating a complete cut by the cutter.

[0016] Furthermore, the lower end of the downward threaded rod is rotatably connected to the bottom surface inside the groove, and both sides of the pressure roller are rotatably connected to the extension block;

[0017] Through the above technical solution, by rotatably connecting the lower end of the pressing threaded rod to the slide groove, the second servo motor can drive the pressing threaded rod to rotate stably inside the slide groove. The pressing threaded rod is threadedly connected to the extension block, so that the extension block can carry the two pressure rollers to move along the slide groove. By using the rotatable pressure rollers to contact the film roll, friction can be reduced and damage to the surface of the film roll can be avoided.

[0018] Furthermore, a hydraulic rod is provided at the center of the upper end of the frame, the output shaft of the hydraulic rod passes through the frame and is fixedly connected to a connecting block, and the rear ends of the outer walls on both sides of the connecting block are slidably connected to the inner walls on both sides of the frame.

[0019] With the above technical solution, the rear ends of the outer walls on both sides of the connecting block are slidably connected to the vertical frame, so that the hydraulic rods set on the vertical frame can be used to drive the connecting block to move up and down along the inner wall of the vertical frame, thereby changing the height of the cutter.

[0020] Furthermore, a protective cover is fixedly connected to the front end of the outer wall on one side of the connecting block, and a cutter is rotatably connected to the center of the inner wall on the other side of the protective cover.

[0021] By employing the above technical solution, the cutter is placed inside the protective cover that is fixedly connected to the connecting block, and the protective cover only has an opening at the bottom where necessary, thereby reducing the exposed area of ​​the cutter and improving safety.

[0022] Furthermore, a third servo motor is provided in the cavity at the front end of the connecting block, and the output shaft of the third servo motor passes through the connecting block and is fixedly connected to the cutter.

[0023] Through the above technical solution, by fixing the third servo motor inside the connecting block to the cutter, the cutter can be driven to rotate inside the protective cover, providing a power source for cutting.

[0024] This utility model has the following beneficial effects:

[0025] 1. The present invention proposes a film cutting device for a fully automatic mechanical blade film cutting machine. Through the threaded connection between the bidirectional threaded rod and two moving blocks in the adjustment mechanism, and the sliding connection between the moving blocks and the moving groove opened on the fixed frame, the rotating bidirectional threaded rod can drive the moving blocks to move along the moving groove with the placing rollers, thereby changing the distance between the two placing rollers and reducing the difficulty for the operator to adjust the roller distance according to the diameter of the film roll.

[0026] 2. The film cutting device of the fully automatic mechanical knife-type film cutting machine proposed in this utility model is slidably connected to the crossbar fixedly connected to the fixed frame by two limiting blocks in the limiting mechanism, and the limiting blocks are fixed by fastening bolts against the crossbar to limit the horizontal direction. The second servo motor drives the downward threaded rod to rotate, which drives the extension block to move along the slide groove to limit the vertical direction. This makes it easier to limit the position of the film roll, prevent the deviation, and improve the cutting quality. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the main structure of the film cutting device of a fully automatic mechanical knife-type film cutting machine proposed in this utility model;

[0028] Figure 2 This is an exploded view of the film cutting device of a fully automatic mechanical knife-type film cutting machine proposed in this utility model;

[0029] Figure 3 This is an axial sectional view of the support frame, fixing frame, limiting block, connecting block, extension block and crossbar of the film cutting device of a fully automatic mechanical knife-type film cutting machine proposed in this utility model;

[0030] Figure 4 This is a side sectional view of the film cutting device of a fully automatic mechanical knife-type film cutting machine proposed in this utility model;

[0031] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0032] Legend:

[0033] 1. Fixed frame; 2. Support frame; 3. PLC control panel; 4. Adjustment mechanism; 401. Moving groove; 402. Moving block; 403. Placement roller; 404. Bearing; 405. First servo motor; 406. Bidirectional threaded rod; 407. Turntable; 5. Vertical frame; 6. Restriction mechanism; 601. Crossbar; 602. Restriction block; 603. Fastening bolt; 604. Slide groove; 605. Second servo motor; 606. Downward threaded rod; 607. Extension block; 608. Pressure roller; 7. Hydraulic rod; 8. Connecting block; 9. Protective cover; 10. Third servo motor; 11. Cutting knife. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides a specific embodiment: a film cutting device for a fully automatic mechanical knife-type film cutting machine, including a fixed frame 1, an adjusting mechanism 4, and a limiting mechanism 6. A vertical frame 5 is fixedly connected to the rear end of one side of the upper end of the fixed frame 1. The front end of the vertical frame 5 is provided with the limiting mechanism 6, which includes two limiting blocks 602, a downward-pressing threaded rod 606, and two pressure rollers 608. A horizontal rod 601 is fixedly connected to the middle of the inner walls on both sides of the fixed frame 1. The outer wall of the horizontal rod 601 is slidably connected to the limiting block 602. The upper end of 02 is threaded with fastening bolts 603, and the lower end of fastening bolts 603 passes through the limiting block 602 and is attached to the crossbar 601. A sliding groove 604 is provided on the other side of the front outer wall of the vertical frame 5. A second servo motor 605 is provided on the top surface inside the sliding groove 604. The output shaft of the second servo motor 605 is fixedly connected to the pressing threaded rod 606. An extension block 607 is threadedly connected to the outer wall of the pressing threaded rod 606. The rear ends of the outer walls on both sides of the extension block 607 are slidably connected to the inner walls on both sides of the sliding groove 604.

[0036] Support frames 2 are fixedly connected to the four corners of the lower end of the fixed frame 1. A PLC control panel 3 is fixedly connected to the rear end of the outer wall of one side of the fixed frame 1. The support frames 2 fixedly connected to the lower end of the fixed frame 1 can increase the size of the device and the ground support surface and reduce the weight of the entire device. The PLC control panel 3 fixedly connected to the fixed frame 1 allows the operator to control the operation of the device. The lower end of the downward threaded rod 606 is rotatably connected to the bottom surface inside the slide groove 604. Both sides of the pressure roller 608 are rotatably connected to the extension block 607. By rotatably connecting the lower end of the downward threaded rod 606 to the slide groove 604, the second servo motor 605 can drive the downward threaded rod 606 to rotate stably inside the slide groove 604. The downward threaded rod 606 is threadedly connected to the extension block 607, so that the extension block 607 can carry the two pressure rollers 608 to move along the slide groove 604. The contact between the rotatable pressure rollers 608 and the film roll can reduce friction and avoid damage to the surface of the film roll. A hydraulic system is set at the center of the upper end of the vertical frame 5. The output shaft of the hydraulic rod 7 passes through the frame 5 and is fixedly connected to the connecting block 8. The rear ends of the outer walls on both sides of the connecting block 8 are slidably connected to the inner walls on both sides of the frame 5. Through the slidable connection between the rear ends of the outer walls on both sides of the connecting block 8 and the frame 5, the hydraulic rod 7 on the frame 5 can be used to drive the connecting block 8 to move up and down along the inner wall of the frame 5, changing the height of the cutter 11. A protective cover 9 is fixedly connected to the front end of one outer wall of the connecting block 8. The cutter 11 is rotatably connected to the center of the inner wall on the other side of the protective cover 9. By placing the cutter 11 inside the protective cover 9 fixedly connected to the connecting block 8, and the protective cover 9 only having an opening at the bottom where necessary, the exposed area of ​​the cutter 11 can be reduced, improving safety. A third servo motor 10 is provided in the cavity at the front end of the connecting block 8. The output shaft of the third servo motor 10 passes through the connecting block 8 and is fixedly connected to the cutter 11. By the third servo motor 10 fixedly connected to the cutter 11 inside the connecting block 8, the cutter 11 can be driven to rotate inside the protective cover 9, providing a power source for cutting.

[0037] Reference Figure 1 , Figure 2 ,and Figure 4An adjustment mechanism 4 is provided at the upper end of the fixed frame 1. The adjustment mechanism 4 includes two placement rollers 403 and a bidirectional threaded rod 406. The rear end of the bidirectional threaded rod 406 is rotatably connected to the middle of the inner wall of the rear end of the fixed frame 1. The front end and rear end of the outer wall of the bidirectional threaded rod 406 are threadedly connected to moving blocks 402. The front end and rear end of the upper end of the fixed frame 1 are provided with moving grooves 401. The inner walls on both sides of the moving grooves 401 are slidably connected to the moving blocks 402. The outer walls on both sides of the placement rollers 403 are fixedly connected to bearings 404. The front end of the bidirectional threaded rod 406 passes through the fixed frame 1 and is fixedly connected to a turntable 407. The outer walls of the bearings 404 are fixedly connected to the moving blocks 402. By allowing the front end of the bidirectional threaded rod 406 to pass through the fixed frame 1 and be fixedly connected to the turntable 407... The fixed connection allows the operator to apply force to the bidirectional threaded rod 406 via the turntable 407, reducing the force required to rotate the bidirectional threaded rod 406. The placement roller 403 is connected to the moving block 402 via the bearing 404, reducing friction between the placement roller 403 and the moving block 402 and improving the smoothness of rotation. A first servo motor 405 is installed in the cavity on the other side of the moving block 402. The output shaft of the first servo motor 405 passes through the moving block 402 and is fixedly connected to the placement roller 403. The fixed connection between the output shaft of the first servo motor 405 installed inside the moving block 402 and the placement roller 403 allows the film roll placed on the placement roller 403 to be driven to rotate, facilitating the cutter 11 to perform a full rotation.

[0038] Working Principle: When using the film cutting device of this fully automatic mechanical knife-type film cutting machine, the operator first supplies power to the device using an external power source. Then, the turntable 407 drives the bidirectional threaded rod 406 to rotate. The moving block 402 is threadedly connected to the bidirectional threaded rod 406, causing the moving block 402 to move the placement roller 403 along the moving groove 401, changing the distance between the two placement rollers 403 to a suitable size. Then, the film roll is placed on the placement roller 403. Next, the operator attaches the limiting block 602 to both sides of the film roll and fixes it with the fastening bolt 603 to limit the horizontal movement of the film roll. The movement of the film roll is coordinated with the second servo motor 605 activated by the PLC control panel 3, which drives the downward threaded rod 606 to rotate. This causes the extension block 607 to carry the pressure roller 608 along the slide groove 604, restricting the vertical movement of the film roll and preventing it from deviating during cutting. Finally, the operator activates the first servo motor 405 via the PLC control panel 3 to drive the placement roller 403 to rotate, making the film roll rotate. Then, the operator uses the PLC control panel 3 to activate the hydraulic rod 7 to move the connecting block 8 down, and at the same time activates the third servo motor 10 to drive the cutter 11 to rotate, performing the cutting operation.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film cutting device of a full-automatic mechanical knife type film cutting machine, comprising a fixed frame (1), an adjusting mechanism (4) and a limiting mechanism (6), characterized in that: The upper end of the fixed frame (1) is provided with an adjusting mechanism (4), the adjusting mechanism (4) comprises two placing rollers (403) and a bidirectional threaded rod (406), the rear end of the bidirectional threaded rod (406) is rotationally connected with the middle part of the inner wall of the rear end of the fixed frame (1), the front end and the rear end of the outer wall of the rod body of the bidirectional threaded rod (406) are both threadedly connected with a moving block (402), the front end and the rear end of the upper end of the fixed frame (1) are both provided with a moving groove (401), the inner walls on the two sides of the moving groove (401) are both slidably connected with the moving block (402), the outer walls on the two sides of the placing roller (403) are both fixedly connected with a bearing (404), the rear end of one side of the upper end of the fixed frame (1) is fixedly connected with a vertical frame (5), and the front end of the vertical frame (5) is provided with a limiting mechanism (6). The limiting mechanism (6) comprises two limiting blocks (602), a downward pressing threaded rod (606) and two pressing wheels (608), the middle parts of the inner walls on the two sides of the fixed frame (1) are both fixedly connected with a cross rod (601), the outer wall of the rod body of the cross rod (601) is slidably connected with the limiting block (602), the upper ends of the limiting blocks (602) are both threadedly connected with a fastening bolt (603), the lower ends of the fastening bolts (603) penetrate through the limiting blocks (602) and are attached to the cross rod (601), the other side of the outer wall of the front end of the vertical frame (5) is provided with a sliding groove (604), the top surface in the sliding groove (604) is provided with a second servo motor (605), the output shaft of the second servo motor (605) is fixedly connected with the downward pressing threaded rod (606), and the outer wall of the rod body of the downward pressing threaded rod (606) is threadedly connected with an extension block (607), and the rear ends of the outer walls on the two sides of the extension block (607) are both slidably connected with the inner walls on the two sides of the sliding groove (604).

2. The film cutting device of a full-automatic mechanical knife type film cutting machine according to claim 1, characterized in that: The lower end of the fixed frame (1) is fixedly connected with a support frame (2), and the rear end of the outer wall of one side of the fixed frame (1) is fixedly connected with a PLC control panel (3).

3. The film cutting device of the full-automatic mechanical knife type film cutting machine according to claim 1, characterized in that: The front end of the bidirectional threaded rod (406) penetrates through the fixed frame (1) and is fixedly connected with a rotating disc (407), and the outer walls of the bearings (404) are all fixedly connected with the moving blocks (402).

4. The film cutting device of the full-automatic mechanical knife type film cutting machine according to claim 1, characterized in that: The other side of the cavity in one of the moving blocks (402) is provided with a first servo motor (405), and the output shaft of the first servo motor (405) penetrates through the moving block (402) and is fixedly connected with the placing roller (403).

5. The film cutting device of the full-automatic mechanical knife type film cutting machine according to claim 1, characterized in that: The lower end of the downward pressing threaded rod (606) is rotationally connected with the bottom surface in the sliding groove (604), and the two sides of the pressing wheel (608) are both rotationally connected with the extension block (607).

6. The film cutting device of a full-automatic mechanical knife type film cutting machine according to claim 1, characterized in that: The central part of the upper end of the vertical frame (5) is provided with a hydraulic rod (7), the output shaft of the hydraulic rod (7) penetrates through the vertical frame (5) and is fixedly connected with a connecting block (8), and the rear ends of the outer walls on the two sides of the connecting block (8) are both slidably connected with the inner walls on the two sides of the vertical frame (5).

7. The film cutting device of a full-automatic mechanical knife type film cutting machine according to claim 6, characterized in that: The front end of the outer wall of one side of the connecting block (8) is fixedly connected with a protective cover (9), and the central part of the inner wall of the other side of the protective cover (9) is rotationally connected with a cutter (11).

8. The film cutting device of a full-automatic mechanical knife type film cutting machine according to claim 7, characterized in that: The third servo motor (10) is arranged at the cavity at the front end inside the connecting block (8), and the output shaft of the third servo motor (10) penetrates the connecting block (8) and is fixedly connected with the cutter (11).

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