Cutting device for kraft paper bag production

By incorporating leveling and protective components into the cutting device used in kraft paper bag production, the problem of uneven cutting edges caused by kraft paper wrinkles has been solved, improving the product's appearance quality and safety.

CN223494000UActive Publication Date: 2025-10-31ZHEJIANG SENLING PACKAGING CO LTD
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Patent Information

Application Number
CN202422898088.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-10-31
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

In the current production process of kraft paper bags, wrinkles are generated during transportation or storage, resulting in burrs or irregular shapes on the cut edges, which affects the appearance quality of the product.

Method used

A cutting device for kraft paper bag production was designed, comprising a leveling component, a positioning component, a cutting component, and a protective component. The leveling component eliminates wrinkles in the kraft paper, the positioning component ensures cutting accuracy, and the protective component prevents accidental injury and improves safety.

Benefits of technology

It effectively eliminates wrinkles in kraft paper, ensures smooth cutting edges, improves product appearance quality, enhances device safety, and reduces the risk of personal injury.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of kraft paper bag production, and particularly discloses a cutting device for kraft paper bag production, which comprises an operating platform, mounting frames and an adjusting component, the adjusting component is arranged on one side of the top surface of the operating platform, and the mounting frames are symmetrically arranged on the top surface of the operating platform. A positioning assembly used for positioning kraft paper is arranged between the two mounting frames and the adjusting assembly, a leveling assembly is slidably mounted between the two mounting frames, a cutting assembly used for cutting the kraft paper is arranged on the side wall of the operation platform, and a protection assembly is mounted on the cutting assembly in a matched mode. According to the cutting device for kraft paper bag production, the leveling assembly is arranged in the cutting device for kraft paper bag production, in the using process of the device, through mutual cooperation of the structures in the assemblies, when kraft paper has wrinkles, the whole leveling assembly is driven to slide in the mounting frame by pulling the push-pull block, and then the kraft paper is cut off. Therefore, the effect of eliminating the wrinkles on the kraft paper is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of kraft paper bag production technology, specifically relating to a cutting device for kraft paper bag production. Background Technology

[0002] Kraft paper, as an environmentally friendly material, is being used more and more widely, especially in the packaging industry. Among them, the kraft paper bag production cutting device is a mechanical device used to cut kraft paper, which is designed to improve production efficiency and product quality.

[0003] The existing utility model patent for a rapid cutting mechanism for kraft paper bag production (publication number: CN217415062U) involves placing the end of the kraft paper bag at the front end of the baffle when adjusting the cutting position, rotating the screw to move the baffle forward between the guide rails until it is adjusted to the appropriate position. This structure can adjust the distance between the baffle and the cutting blade to meet different cutting needs and achieve the effect of adjustable cutting position.

[0004] In the existing technology, during the actual cutting process, kraft paper itself may wrinkle during transportation or storage. When kraft paper wrinkles, it may cause burrs or irregular shapes on the cut edges, resulting in problems that affect the appearance quality of the product.

[0005] Therefore, this solution provides a cutting device for kraft paper bag production to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a cutting device for kraft paper bag production, so as to solve the problem that in the actual cutting process of the prior art, kraft paper itself may be wrinkled during transportation or storage, and when the kraft paper is wrinkled, it may cause burrs or irregular shapes on the cut edge, which will affect the appearance quality of the product.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for producing kraft paper bags, comprising an operating platform, a mounting frame, and an adjusting component. An adjusting component is provided on one side of the top surface of the operating platform, and mounting frames are symmetrically arranged on the top surface of the operating platform. A positioning component for positioning kraft paper is provided between the two mounting frames and the adjusting component. A leveling component is slidably installed between the two mounting frames. A cutting component for cutting kraft paper is provided on the side wall of the operating platform, and a protective component is fitted onto the cutting component.

[0008] The leveling component includes a sliding plate, a push-pull block is symmetrically installed on one end of the sliding plate, a connecting frame is symmetrically installed on one side wall of the sliding plate, a limit block is symmetrically installed in the inner cavity of the connecting frame, a movable plate is slidably installed between the two limit blocks, and a leveling roller is rotatably installed between the two movable plates.

[0009] A clamping groove one is provided on the end face of the movable plate, a clamping groove two is opened on the top surface of the inner cavity of the connecting frame, a clamping disc is clamped in the clamping groove one, a clamping disc is clamped in the inner cavity of the clamping groove two, and a damping spring is installed between the two clamping discs;

[0010] On one side of the sliding plate one away from the connecting frame, plug-in blocks are symmetrically installed.

[0011] Preferably: The cutting component includes a base, the base is installed on the side wall of the operation platform, a support frame is installed on the end face of the base, an electric push rod is installed on the support frame, a mounting seat is installed on the telescopic end of the electric push rod, and a cutting knife is installed on the bottom surface of the mounting seat.

[0012] Preferably: Protective components are respectively installed on the side walls of the cutting knives that are symmetric to each other, sliding frames are respectively installed on the outer walls of the two symmetric sides of the cutting knives, a limiting frame is installed below the inner cavity of the sliding frame, and a sliding plate two is slidably installed between the limiting frame and the sliding frame.

[0013] Preferably: The adjusting component includes a first threaded rod, the adjusting component is installed on the end face of the operation platform, an installation plate is threadedly connected to the adjusting component, and a positioning component is installed at the end of the installation plate.

[0014] Preferably: The positioning component includes a sliding frame, the sliding frame is slidably installed between the two installation frames, an installation frame is installed on the top surface of the sliding frame, a connecting plate is installed on the side wall of the installation frame, connecting columns are symmetrically installed on the connecting plate, a sliding cylinder is slidably installed on the connecting columns, a first spring is installed on the top surface of the sliding cylinder, the first spring is connected to the connecting plate on the side away from the sliding cylinder, and a positioning plate is installed at one end of the two sliding cylinders away from the first spring.

[0015] Preferably: The sliding frame is in a "U" shape, plug-in holes are respectively opened at both ends of the sliding frame, plug-in blocks are respectively slidably installed in the two plug-in holes, a second threaded rod is threadedly connected to the connecting plate, and an installation plate is rotatably installed on the side wall of the sliding frame.

[0016] Preferably: A through groove is opened on the top surface of the inner cavity of the installation frame, a sliding plate one is slidably installed between the two installation frames, and a push-pull block is slidably installed in the through groove.

[0017] Preferably: The side of the base end face away from the operation platform is inclined, and the vertical projection of the cutting edge of the cutting knife is at the horizontal position of the base end face.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] 1. This utility model provides a leveling component in a cutting device for kraft paper bag production. During the use of the device, the components work together to eliminate wrinkles in the kraft paper. By pulling the push-pull block, the leveling component slides within the mounting frame. This solves the problem in the prior art where kraft paper may develop wrinkles during transportation or storage, which can lead to burrs or irregular shapes on the cut edges, affecting the product's appearance quality.

[0020] 2. This utility model, by setting a second snap-fit ​​groove, a first snap-fit ​​groove, a damping spring, and a snap-fit ​​plate in the leveling component, achieves the benefit of strengthening the pressing force of the leveling roller on the kraft paper and improving the leveling effect of the kraft paper through the cooperation between the above structures during the use of the device. At the same time, it also makes it easy to disassemble and replace the damping spring after a period of use, thus maintaining the high-quality leveling effect of the leveling component.

[0021] 3. This utility model, by setting protective components in a cutting device for kraft paper bag production, achieves protection of the cutting blade through the mutual cooperation between the structures of the protective components during the use of the device, avoiding accidental injury to workers, thus improving the safety of the device and solving the problem that the hands of operators may come into contact with the cutting blade in the prior art, thereby increasing the risk of injury. Attached Figure Description

[0022] Figure 1 This is one of the perspective views of this utility model;

[0023] Figure 2 This is a second perspective view of the present utility model;

[0024] Figure 3 This is a structural diagram of the leveling component of this utility model;

[0025] Figure 4 This is a side sectional view of the connecting frame of this utility model;

[0026] Figure 5 This is a schematic diagram of the cutting component structure of this utility model;

[0027] Figure 6 This is a schematic diagram of the positioning component structure of this utility model;

[0028] Figure 7 This is a top sectional view of the connecting frame of this utility model.

[0029] In the diagram: 1. Operating platform; 2. Mounting frame; 3. Adjustment assembly; 301. Threaded rod one; 302. Mounting plate; 4. Positioning assembly; 401. Sliding frame; 402. Mounting frame; 403. Connecting plate; 404. Insertion hole; 405. Threaded rod two; 406. Connecting column; 407. Spring one; 408. Sliding cylinder; 409. Positioning plate; 5. Leveling assembly; 501. Sliding plate one; 502. Push-pull block; 503. Insertion block; 504. Connecting frame; 505. Leveling roller; 506. Moving plate; 507. Limiting block; 508. Snap-fit ​​groove one; 509. Damping spring; 5010. Snap-fit ​​plate; 5011. Snap-fit ​​groove two; 6. Cutting assembly; 601. Support frame; 602. Electric push rod; 603. Mounting base; 604. Base; 605. Cutting blade; 7. Protective assembly; 701. Sliding frame; 702. Limiting frame; 703. Sliding plate two; 8. Through groove. Detailed Implementation

[0030] 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 protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 7 As shown, this utility model provides a cutting device for producing kraft paper bags, including an operating platform 1, a mounting frame 2 and an adjusting component 3. The adjusting component 3 is provided on one side of the top surface of the operating platform 1, and the mounting frame 2 is symmetrically provided on the top surface of the operating platform 1. A positioning component 4 for positioning kraft paper is provided between the two mounting frames 2 and the adjusting component 3. A leveling component 5 is slidably installed between the two mounting frames 2. A cutting component 6 for cutting kraft paper is provided on the side wall of the operating platform 1, and a protective component 7 is installed on the cutting component 6.

[0032] The leveling component 5 includes a sliding plate 501, a push-pull block 502 symmetrically installed on the end face of the sliding plate 501, a connecting frame 504 symmetrically installed on one side wall of the sliding plate 501, a limit block 507 symmetrically installed in the inner cavity of the connecting frame 504, a movable plate 506 slidably installed between the two limit blocks 507, and a leveling roller 505 rotatably installed between the two movable plates 506.

[0033] The end face of the movable plate 506 is provided with a snap-fit ​​groove 508, and the top surface of the inner cavity of the connecting frame 504 is provided with a snap-fit ​​groove 5011. A snap-fit ​​plate 5010 is snapped in the snap-fit ​​groove 508, and a snap-fit ​​plate 5010 is snapped in the inner cavity of the snap-fit ​​groove 5011. A damping spring 509 is installed between the two snap-fit ​​plates 5010.

[0034] A plug-in block 503 is symmetrically installed on the side of the sliding plate 501 away from the connecting frame 504;

[0035] A through groove 8 is provided on the top surface of the inner cavity of the mounting frame 2. A sliding plate 501 is slidably installed between the two mounting frames 2. A push-pull block 502 is slidably installed in the through groove 8.

[0036] The damping spring 509 applies force between the connecting frame 504 and the moving plate 506 respectively, so that the moving plate 506 is below the connecting frame 504. When the leveling component 5 levels kraft paper of different thicknesses, the moving plate 506 will compress the damping spring 509 upward, so that the moving plate 506 and the leveling roller 505 on the moving plate 506 can level kraft paper of different thicknesses.

[0037] Furthermore, when the damping spring 509 ages after a period of use, it is pressed down and removed from between the second snap-fit ​​slot 5011 and the first snap-fit ​​slot 508. After removal, a new damping spring 509 is pressed down, and the two snap-fit ​​discs 5010 on the new damping spring 509 are snapped into the first snap-fit ​​slot 508 and the second snap-fit ​​slot 5011 respectively. This makes it easy to disassemble and replace the damping spring 509 after a period of use, thus maintaining the high-quality leveling effect of the leveling component 5.

[0038] In a further embodiment, refer to Figure 1 - Figure 7 The cutting component 6 includes a base 604. The base 604 is installed on the side wall of the operating platform 1. A support frame 601 is installed on the end face of the base 604. An electric push rod 602 is installed on the support frame 601. A mounting seat 603 is installed on the telescopic end of the electric push rod 602. A cutting blade 605 is installed on the bottom surface of the mounting seat 603.

[0039] Protective components 7 are installed on the symmetrical side walls of the cutting blade 605. Sliding frames 701 are installed on the symmetrical outer walls of the two sides of the cutting blade 605. A limiting frame 702 is installed below the inner cavity of the sliding frame 701. A sliding plate 703 is slidably installed between the limiting frame 702 and the sliding frame 701.

[0040] The electric push rod 602 is activated to move the mounting base 603 and the base 604 downward, thereby cutting the kraft paper on the base 604 and the operating platform 1. At the same time as the mounting base 603 moves downward, the sliding frame 701 and the second sliding plate 703 move downward. After the second sliding plate 703 comes into contact with the kraft paper, it will gradually move upward and be stored in the sliding frame 701 to avoid affecting the cutting blade 605's cutting of the kraft paper.

[0041] In a further embodiment, refer to Figure 1 - Figure 7 The adjusting component 3 includes a first threaded rod 301. The adjusting component 3 is installed on the end face of the operating platform 1. An installation plate 302 is threadedly connected to the adjusting component 3, and a positioning component 4 is installed at the end of the installation plate 302;

[0042] Among them, when the device is in use, rotating the first threaded rod 301 drives the sliding frame 401 to slide in the installation frame 2 to adjust the distance between the positioning component 4 and the cutting component 6;

[0043] The positioning component 4 includes a sliding frame 401. The sliding frame 401 is slidably installed between two installation frames 2. An installation frame 402 is installed on the top surface of the sliding frame 401. A connecting plate 403 is installed on the side wall of the installation frame 402. Connecting columns 406 are symmetrically installed on the connecting plate 403. A sliding cylinder 408 is slidably installed on the connecting column 406. A first spring 407 is installed on the top surface of the sliding cylinder 408. One side of the first spring 407 away from the sliding cylinder 408 is connected to the connecting plate 403. A positioning plate 409 is installed at one end of the two sliding cylinders 408 away from the first spring 407;

[0044] The sliding frame 401 is in a "U" shape. Insertion holes 404 are respectively opened at both ends of the sliding frame 401. Insertion blocks 503 are respectively slidably installed in the two insertion holes 404. A second threaded rod 405 is threadedly connected to the connecting plate 403. The installation plate 302 is rotatably installed on the side wall of the sliding frame 401;

[0045] Among them, before cutting, the positioning plate 409 is pulled upward, and then the kraft paper is laid flat on the top surface of the operating platform 1. Subsequently, the pulling of the positioning plate 409 is released. Under the action of the first spring 407, the sliding cylinder 408 and the positioning plate 409 will position the kraft paper;

[0046] Furthermore, when the device is in use, when the first spring 407 is fatigued after long-term use and the positioning ability of the positioning plate 409 for the kraft paper is weakened, rotate the second threaded rod 405 to press the positioning plate 409, thereby assisting in positioning the kraft paper.

[0047] In a further embodiment, referring to Figure 1 and Figure 5 , the end face of the base 604 on the side away from the operating platform 1 is designed to be inclined, and the vertical projection of the cutting edge of the cutting knife 605 is at the horizontal position of the end face of the base 604;

[0048] Among them, the inclined design on the base 604 facilitates the automatic sliding of the kraft paper after cutting.

[0049] The working principle of the present utility model is as follows: When the device is in use, first, the electric equipment, the electric push rod 602, is powered on. Before cutting, the positioning plate 409 is pulled upward, and then the kraft paper is laid flat on the top surface of the operating platform 1;

[0050] Then, the pull on the positioning plate 409 is released. Under the action of the spring 407, the sliding cylinder 408 and the positioning plate 409 will position the kraft paper. After positioning, check whether there are wrinkles on the surface of the kraft paper. If there are wrinkles on the kraft paper, pull the push-pull block 502 to drive the leveling component 5 to slide repeatedly in the mounting frame 2, thereby leveling the kraft paper on the end face of the operating platform 1.

[0051] After leveling, the electric push rod 602 is activated to move the mounting base 603 and the base 604 downwards, thereby cutting the kraft paper on the base 604 and the operating platform 1. At the same time as the mounting base 603 moves downwards, the sliding frame 701 and the second sliding plate 703 move downwards. After the second sliding plate 703 contacts the kraft paper, it will gradually move upwards and be stored in the sliding frame 701 to avoid affecting the cutting blade 605's cutting of the kraft paper.

[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for producing kraft paper bags, comprising an operating platform (1), a mounting frame (2), and an adjusting assembly (3), characterized in that, An adjustment component (3) is provided on one side of the top surface of the operating platform (1). An installation frame (2) is symmetrically provided on the top surface of the operating platform (1). A positioning component (4) for positioning kraft paper is provided between the two installation frames (2) and the adjustment component (3). A leveling component (5) is slidably installed between the two installation frames (2). A cutting component (6) for cutting kraft paper is provided on the side wall of the operating platform (1). A protective component (7) is installed on the cutting component (6). The leveling component (5) includes a sliding plate (501), a push-pull block (502) is symmetrically installed on the end face of the sliding plate (501), a connecting frame (504) is symmetrically installed on one side wall of the sliding plate (501), a limiting block (507) is symmetrically installed in the inner cavity of the connecting frame (504), a moving plate (506) is slidably installed between the two limiting blocks (507), and a leveling roller (505) is rotatably installed between the two moving plates (506). The end face of the movable plate (506) is provided with a snap-fit ​​groove 1 (508), and the top surface of the inner cavity of the connecting frame (504) is provided with a snap-fit ​​groove 2 (5011). A snap-fit ​​plate (5010) is snapped in the snap-fit ​​groove 1 (508), and a snap-fit ​​plate (5010) is snapped in the inner cavity of the snap-fit ​​groove 2 (5011). A damping spring (509) is installed between the two snap-fit ​​plates (5010). The sliding plate (501) is symmetrically equipped with plug-in blocks (503) on the side away from the connecting frame (504).

2. The cutting device for producing kraft paper bags according to claim 1, characterized in that: The cutting assembly (6) includes a base (604), the base (604) is mounted on the side wall of the operating platform (1), a support frame (601) is mounted on the end face of the base (604), an electric push rod (602) is mounted on the support frame (601), a mounting seat (603) is mounted on the telescopic end of the electric push rod (602), and a cutting blade (605) is mounted on the bottom surface of the mounting seat (603).

3. The cutting device for producing kraft paper bags according to claim 2, characterized in that: Protective components (7) are installed on the symmetrical side walls of the cutting blade (605). Sliding frames (701) are installed on the symmetrical outer walls of the two sides of the cutting blade (605). A limiting frame (702) is installed below the inner cavity of the sliding frame (701). A sliding plate (703) is slidably installed between the limiting frame (702) and the sliding frame (701).

4. The cutting device for producing kraft paper bags according to claim 1, characterized in that: The adjustment component (3) includes a threaded rod (301), the adjustment component (3) is installed on the end face of the operating platform (1), the adjustment component (3) is threadedly connected to the mounting plate (302), and the end of the mounting plate (302) is equipped with a positioning component (4).

5. The cutting device for producing kraft paper bags according to claim 1, characterized in that: The positioning component (4) includes a sliding frame (401). The sliding frame (401) is slidably installed between two installation frames (2). An installation frame (402) is installed on the top surface of the sliding frame (401). A connecting plate (403) is installed on the side wall of the installation frame (402). Connecting columns (406) are symmetrically installed on the connecting plate (403). A sliding cylinder (408) is slidably installed on the connecting column (406). A first spring (407) is installed on the top surface of the sliding cylinder (408). One side of the first spring (407) away from the sliding cylinder (408) is connected to the connecting plate (403). A positioning plate (409) is installed at one end of the two sliding cylinders (408) away from the first spring (407).

6. The cutting device for producing kraft paper bags according to claim 5, characterized in that: The sliding frame (401) is in a "U" shape. Insertion holes (404) are respectively opened at both ends of the sliding frame (401). Insertion blocks (503) are respectively and slidably installed in the two insertion holes (404). A second threaded rod (405) is threadedly connected to the connecting plate (403). An installation plate (302) is rotatably installed on the side wall of the sliding frame (401).

7. The cutting device for producing kraft paper bags according to claim 1, characterized in that: A through groove (8) is opened on the top surface of the inner cavity of the installation frame (2). A first sliding plate (501) is slidably installed between the two installation frames (2). A pushing and pulling block (502) is slidably installed in the through groove (8).

8. A cutting device for producing kraft paper bags according to claim 2, characterized in that: One side of the end face of the base (604) away from the operation platform (1) is designed to be inclined. The vertical projection of the cutting edge of the cutting knife (605) is at the horizontal position of the end face of the base (604).

Citation Information

Patent Citations

  • Rapid cutting mechanism for kraft paper bag production

    CN217415062U