A packaging bag cutting device

Abstract

This utility model belongs to the field of packaging bag cutting technology, specifically a packaging bag cutting device, including a base, an mounting frame installed on the cutting table, an electric telescopic rod installed on the mounting frame, a push rod installed on the electric telescopic rod, the push rod being fixedly connected to a pressure block, two sets of first limiting blocks and second limiting blocks symmetrically installed on the pressure block, two sets of connecting rods symmetrically and rotatably installed on the pressure block, and a spreading plate rotatably installed on the bottom side of the connecting rods. A spring is installed between the two sets of connecting rods. When the packaging bag moves between the upper and lower blades, the push rod drives the pressure block to move vertically downwards, the pressure block drives the two sets of connecting rods on it to move downwards, and the two sets of connecting rods drive the two sets of spreading plates to move downwards. Then the two spreading plates slide on the packaging bag, flattening the packaging bag, realizing rapid flattening of the packaging bag. The packaging bag is in a flat state, so the cutting edge is neat, which is beneficial to improving the neatness of the cutting.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag cutting technology, specifically a packaging bag cutting device. Background Technology

[0002] Packaging bags play a vital role in food production and processing. They not only improve the sealing of food but also facilitate its transportation and sale. During the production of packaging bags, cutting devices are required to cut them.

[0003] Chinese patent application CN 119189425 A discloses a cutting device for processing plastic packaging bags, relating to the field of plastic bag cutting equipment. The device includes: a main body; a cutting mechanism is provided on the front side of the upper end face of the main body, and a second rectangular groove is provided on the front side of the upper end face of the main body; a conveying mechanism is installed inside the second rectangular groove, and plastic packaging bag rolls are conveyed on the conveying mechanism; a heat-sealing mechanism is installed on the rear side of the upper end face of the main body. This invention, through the cooperation of a circular turntable, annular limiting member, rectangular opening, first circular plate, second circular plate, rectangular locking plate, and guide slide rod, can prevent the drive nut from loosening, improving the reliability of the clamping mechanism during clamping. It solves the problem that in traditional heat-sealing and cold-cutting cutting devices, the threaded rod in the clamping mechanism is prone to loosening under stress during the conveying of plastic packaging bag rolls, thus reducing the reliability of the clamping mechanism during clamping.

[0004] Existing cutting devices struggle to quickly flatten packaging bags during the cutting process, resulting in wrinkled bags and poor cut neatness. Therefore, a new packaging bag cutting device is proposed to address this problem. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a packaging bag cutting device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a packaging bag cutting device, including a base, a cutting table mounted on the base via a support frame, an installation frame mounted on the cutting table, a control panel mounted on the outer wall of the installation frame, symmetrically formed lifting grooves on the inner wall of the installation frame, lifting blocks assembled in the lifting grooves, pressure blocks mounted on the lifting blocks, an electric telescopic rod mounted on the installation frame, a push rod mounted on the electric telescopic rod, the push rod being fixedly connected to the pressure block, two sets of first limit blocks and second limit blocks symmetrically mounted on the pressure block, two sets of connecting rods symmetrically and rotatably mounted on the pressure block, a spreading plate rotatably mounted on the bottom side of the connecting rods, a spring installed between the two sets of connecting rods, a hydraulic cylinder mounted on the installation frame, a hydraulic rod mounted on the hydraulic cylinder, a connecting plate fixedly mounted on the bottom side of the hydraulic rod, a knife holder mounted on the bottom side of the connecting plate, an upper blade mounted on the knife holder, a knife groove formed on the cutting table, a lower blade fixedly mounted on the inner wall of the knife groove via a fixed seat, and the installation frame... Two guide holes are provided, and guide rods are installed in the guide holes. The guide rods are fixedly connected to the connecting plate. A first fixed frame is installed on the base, and a first motor is installed on the first fixed frame via a base. A release roller is installed on the output shaft of the first motor, and a packaging bag is wound on the release roller. Two second fixed frames are installed on the base, and two sets of conveying rollers are rotatably installed on the two second fixed frames. Gears are fixedly installed on the output shafts of the two sets of conveying rollers, and the two gears mesh with each other. A second motor is installed on the side wall of the second fixed frame via a base. The output shaft of the second motor is fixedly connected to the output shaft of one of the conveying rollers. When the packaging bag moves between the upper and lower blades, the push rod drives the pressure block to move vertically downward. The pressure block drives two sets of connecting rods on it to move downward. The two sets of connecting rods drive two sets of spreading plates to move downward. Then, the two spreading plates slide on the packaging bag, flattening the packaging bag. This achieves rapid flattening of the packaging bag. The packaging bag is in a flat state, so the cut is neat, which helps to improve the neatness of the cut.

[0007] Preferably, a feeding groove is provided on the side wall of the cutting table, and a collection box is placed below the feeding groove. The collection box is placed on the base. By placing the collection box below the feeding groove, after the upper and lower blades have cut the packaging bag, the cut packaging bag will slide from the feeding groove into the collection box, realizing the rapid collection of the packaging bag and improving the convenience of collecting the packaging bag.

[0008] The advantages of this utility model are:

[0009] 1. This utility model achieves rapid flattening of the packaging bag by pushing the pressure block vertically downward when the packaging bag moves between the upper and lower blades. The pressure block drives the two sets of connecting rods on it to move downward, and the two sets of connecting rods drive the two sets of spreading plates to move downward. Then, the two spreading plates slide on the packaging bag to flatten it, thus achieving rapid flattening of the packaging bag. The packaging bag is in a flat state, so the cut is neat, which helps to improve the neatness of the cut.

[0010] 2. This utility model places the collection box below the feeding trough. After the upper and lower blades cut the packaging bag, the cut packaging bag will slide from the feeding trough into the collection box, realizing the rapid collection of packaging bags and improving the convenience of packaging bag collection. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a first-person perspective 3D structural diagram;

[0013] Figure 2 A three-dimensional structural diagram of the electric telescopic pole;

[0014] Figure 3 A schematic diagram of the three-dimensional structure of the flat panel;

[0015] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting bracket;

[0016] Figure 5 This is a schematic diagram of the three-dimensional structure of the conveyor roller.

[0017] In the diagram: 1. Base; 2. Cutting table; 3. Mounting frame; 4. Control panel; 5. Lifting groove; 6. Lifting block; 7. Pressing block; 8. Electric telescopic rod; 9. Push rod; 10. First limit block; 11. Second limit block; 12. Connecting rod; 13. Spreading plate; 14. Spring; 15. Hydraulic cylinder; 16. Hydraulic rod; 17. Connecting plate; 18. Knife holder; 19. Upper blade; 20. Knife groove; 21. Lower blade; 22. Guide rod; 23. First fixing frame; 24. First motor; 26. Packaging bag; 27. Second fixing frame; 28. Conveying roller; 29. ​​Gear; 30. Second motor; 31. Discharge chute; 32. Collection box. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0019] Please see Figure 1-5As shown, a packaging bag cutting device includes a base 1, a cutting table 2 mounted on the base 1 via a support frame, an mounting frame 3 mounted on the cutting table 2, a control panel 4 mounted on the outer wall of the mounting frame 3, symmetrically arranged lifting grooves 5 on the inner wall of the mounting frame 3, lifting blocks 6 assembled in the lifting grooves 5, pressure blocks 7 mounted on the lifting blocks 6, an electric telescopic rod 8 mounted on the mounting frame 3, a push rod 9 mounted on the electric telescopic rod 8, the push rod 9 being fixedly connected to the pressure blocks 7, two sets of first limiting blocks 10 and second limiting blocks 11 symmetrically mounted on the pressure blocks 7, and two sets of connecting rods 12 symmetrically and rotatably mounted on the pressure blocks 7, with a rotatable mounting on the bottom side of the connecting rods 12. A flat plate 13 is provided. A spring 14 is installed between two sets of connecting rods 12. A hydraulic cylinder 15 is installed on the mounting frame 3. A hydraulic rod 16 is installed on the hydraulic cylinder 15. A connecting plate 17 is fixedly installed on the bottom side of the hydraulic rod 16. A blade holder 18 is installed on the bottom side of the connecting plate 17. An upper blade 19 is installed on the blade holder 18. A blade groove 20 is provided on the cutting table 2. A lower blade 21 is fixedly installed on the inner wall of the blade groove 20 through a fixed seat. Two guide holes are provided on the mounting frame 3. Guide rods 22 are installed in the guide holes and are fixedly connected to the connecting plate 17. A first fixed frame 23 is installed on the base 1. A machine base is installed on the first fixed frame 23. A first motor 24 has a release roller mounted on its output shaft, on which a packaging bag 26 is wound. Two second fixing frames 27 are mounted on the base 1, and two sets of conveyor rollers 28 are rotatably mounted on the two second fixing frames 27. Gears 29 are fixedly mounted on the output shafts of the two sets of conveyor rollers 28, and the two gears 29 mesh with each other. A second motor 30 is mounted on the side wall of the second fixing frame 27 via a machine base, and the output shaft of the second motor 30 is fixedly connected to the output shaft of one of the conveyor rollers 28. During operation, the existing cutting device has difficulty quickly flattening the packaging bag 26 during the cutting process. The packaging bag 26 is in a wrinkled state, resulting in poor neatness of the cut. The first motor 24 drives the release roller to rotate, and the release roller releases the packaging bag 26. Then the packaging bag 26 moves between two conveyor rollers 28. The second motor 30 drives one of the conveyor rollers 28 to rotate. The one conveyor roller 28 drives the gear 29 on it to rotate. The gear 29 drives the other gear 29 to rotate. The two gears 29 rotate synchronously relative to each other, and the two gears 29 drive the two conveyor rollers 28 to rotate synchronously relative to each other. The two conveyor rollers 28 convey the packaging bag 26, so that the packaging bag 26 moves to the cutting table 2.

[0020] When the packaging bag 26 moves between the upper blade 19 and the lower blade 21, the electric telescopic rod 8 is operated by the control panel 4. The push rod 9 drives the pressure block 7 to move vertically downward. The pressure block 7 drives the two sets of connecting rods 12 on it to move downward. The two sets of connecting rods 12 drive the two sets of unfolding plates 13 to move downward. During this process, the two sets of unfolding plates 13 will first contact the packaging bag 26. Then the two sets of connecting rods 12 will open in a V-shape. The spring 14 between the two sets of connecting rods 12 will be stretched. The two sets of unfolding plates 13 will slide on the packaging bag 26 and flatten the packaging bag 26 until the connecting rod 12 contacts the second limit block 11 and is limited by the second limit block 11. At this time, the two sets of unfolding plates 13 press and fix the flattened packaging bag 26, realizing the rapid flattening of the packaging bag 26.

[0021] Then, the hydraulic cylinder 15 operates, the hydraulic rod 16 drives the connecting plate 17 to move vertically downward, the connecting plate 17 drives the cutter holder 18 to move vertically downward, the cutter holder 18 drives the upper blade 19 to move vertically downward, the upper blade 19 and the lower blade 21 cooperate to quickly cut the packaging bag 26, thus realizing the cutting of the packaging bag 26. During this process, the packaging bag 26 is in a flat state, so the cut is neat, which helps to improve the neatness of the cut.

[0022] Please see Figure 1 As shown, a feeding groove 31 is provided on the side wall of the cutting table 2, and a collection box 32 is placed below the feeding groove 31 and placed on the base 1. During operation, the existing cutting device has difficulty in quickly collecting the cut packaging bags 26 during the cutting process, resulting in poor convenience of collecting the packaging bags 26. By placing the collection box 32 below the feeding groove 31, after the upper blade 19 and lower blade 21 have cut the packaging bags 26, the cut packaging bags 26 will slide from the feeding groove 31 into the collection box 32, realizing the rapid collection of the packaging bags 26 and improving the convenience of collecting the packaging bags 26.

[0023] Working principle: Existing cutting devices struggle to quickly flatten the packaging bag 26 during the cutting process, resulting in a wrinkled state and poor cut neatness. The first motor 24 rotates the release roller, releasing the packaging bag 26. The bag then moves between two conveyor rollers 28. The second motor 30 rotates one of these rollers, which in turn rotates its gear 29. This gear 29 drives the other gear 29, and the two gears rotate synchronously relative to each other. Two conveyor rollers 28 rotate synchronously relative to each other, conveying the packaging bag 26 to the cutting table 2. When the packaging bag 26 moves between the upper blade 19 and the lower blade 21, the electric telescopic rod 8 is operated via the control panel 4. The push rod 9 drives the pressure block 7 to move vertically downward, which in turn drives the two sets of connecting rods 12 on it to move downward. The two sets of connecting rods 12 then drive the two sets of spreading plates 13 to move downward. During this process, the two sets of spreading plates 13 first contact the packaging bag 26, and then the two sets of connecting rods 12 open in a V-shape, pulling the spring 14 between the two sets of connecting rods 12. The two flattening plates 13 slide on the packaging bag 26, flattening it until the connecting rod 12 contacts the second limiting block 11 and is limited by it. At this point, the two flattening plates 13 press and fix the flattened packaging bag 26, achieving rapid flattening of the packaging bag 26. Then, the hydraulic cylinder 15 operates, and the hydraulic rod 16 drives the connecting plate 17 to move vertically downward. The connecting plate 17 drives the cutter holder 18 to move vertically downward, and the cutter holder 18 drives the upper blade 19 to move vertically downward. The upper blade 19 and the lower blade 21 work together to quickly cut the packaging bag 26, achieving the cutting of the packaging bag 26. During the cutting process, the packaging bag 26 is in a flat state, so the cut is neat, which helps to improve the neatness of the cut. The existing cutting device has difficulty in quickly collecting the cut packaging bags 26 during the cutting process, resulting in poor convenience of collecting the packaging bags 26. By placing the collection box 32 below the feeding trough 31, after the upper blade 19 and lower blade 21 have cut the packaging bag 26, the cut packaging bag 26 will slide from the feeding trough 31 into the collection box 32, realizing the rapid collection of the packaging bag 26 and improving the convenience of collecting the packaging bag 26.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A packaging bag cutting device, characterized in that: The system includes a base (1), on which a cutting table (2) is mounted via a support frame. A mounting frame (3) is mounted on the cutting table (2). A control panel (4) is mounted on the outer wall of the mounting frame (3). A lifting groove (5) is symmetrically formed on the inner wall of the mounting frame (3). A lifting block (6) is fitted inside the lifting groove (5). A pressure block (7) is mounted on the lifting block (6). An electric telescopic rod (8) is mounted on the mounting frame (3). A push rod (9) is mounted on the electric telescopic rod (8). The push rod (9) is fixedly connected to the pressure block (7). The pressure block (7) has... Two sets of first limiting blocks (10) and second limiting blocks (11) are symmetrically installed. Two sets of connecting rods (12) are symmetrically and rotatably installed on the pressure block (7). A spreading plate (13) is rotatably installed on the bottom side of the connecting rod (12). A spring (14) is installed between the two sets of connecting rods (12). A hydraulic cylinder (15) is installed on the mounting frame (3). A hydraulic rod (16) is installed on the hydraulic cylinder (15). A connecting plate (17) is fixedly installed on the bottom side of the hydraulic rod (16). A knife holder (18) is installed on the bottom side of the connecting plate (17). An upper blade (19) is installed on the knife holder (18).

2. The packaging bag cutting device according to claim 1, characterized in that: The cutting table (2) is provided with a knife groove (20), and a lower blade (21) is fixedly installed on the inner wall of the knife groove (20) by a fixing seat.

3. The packaging bag cutting device according to claim 1, characterized in that: The mounting bracket (3) has two guide holes, and a guide rod (22) is installed in the guide holes. The guide rod (22) is fixedly connected to the connecting plate (17).

4. The packaging bag cutting device according to claim 1, characterized in that: A first fixing frame (23) is installed on the base (1), and a first motor (24) is installed on the first fixing frame (23) via a base. A release roller is installed on the output shaft of the first motor (24), and a packaging bag (26) is wrapped on the release roller.

5. The packaging bag cutting device according to claim 1, characterized in that: Two second fixed frames (27) are installed on the base (1). Two sets of conveying rollers (28) are rotatably installed on the two second fixed frames (27). Gears (29) are fixedly installed on the output shafts of the two sets of conveying rollers (28). The two gears (29) mesh with each other. A second motor (30) is installed on the side wall of the second fixed frame (27) through the base. The output shaft of the second motor (30) is fixedly connected to the output shaft of one of the conveying rollers (28).

6. The packaging bag cutting device according to claim 1, characterized in that: The cutting table (2) has a feeding groove (31) on its side wall, and a collection box (32) is placed below the feeding groove (31) and the collection box (32) is placed on the base (1).

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