Line pressing structure of paper bag machine

By adopting a combination design of an upper pressure roller as a cam and a lower pressure roller as a rubber roller on the paper bag machine, the problem of uneven creases under different paper thicknesses is solved, the effect of single crease is achieved, and the stability and yield of paper bag forming are improved.

CN223763933UActive Publication Date: 2026-01-06WUHU MANPU MASCH CO LTD
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Patent Information

Application Number
CN202423114947.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2026-01-06
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

The creasing structure of traditional paper bag machines cannot effectively handle different paper thicknesses, resulting in uneven creasing effects. Furthermore, the combination of cam and concave wheel cannot achieve single creasing, affecting the quality of paper bag forming.

Method used

The design employs a combination of an upper pressure roller mechanism and a lower pressure roller mechanism. The upper pressure roller is a cam, and the lower pressure roller is a rubber wheel. Through their cooperation, a single indentation is generated, ensuring that both thin and thick paper can be die-cut effectively and reducing waste.

Benefits of technology

This technology ensures that a distinct single crease is produced regardless of paper thickness, improving the stability and yield of paper bag forming and reducing the scrap rate.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223763933U_ABST
Patent Text Reader

Abstract

The utility model discloses a line pressing structure of a paper bag machine. The upper pressing wheel mechanism is mounted at the upper end of the rack; the lower pressing wheel mechanism is mounted at the lower end of the rack; paper bags can pass through the space between the upper pressing wheel mechanism and the lower pressing wheel mechanism; pressing wheels of the upper pressing wheel mechanism and the lower pressing wheel mechanism are cams and rubber wheels which are matched with each other, and protruding blocks are arranged on the cams. The die cutting effect can be achieved regardless of thin paper and thick paper, creases are obvious, only one crease can be generated, waste products are not prone to being produced when the rear section of a paper bag is pasted on a cylinder and formed in a bottom drawing mode, and the stability of the machine is greatly improved.
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Description

Technical Field

[0001] This utility model belongs to the field of paper bag machine technology, and in particular relates to a paper bag machine pressing structure. Background Technology

[0002] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0003] In traditional techniques, crease rollers use a combination of cams and concave rollers to create creases, resulting in a relatively simple function and inconsistent crease quality when using rollers on paper of varying thicknesses. Furthermore, the combination of concave rollers and cams results in iron pressing iron, creating three creases instead of achieving the desired single crease, leading to poor pressing results.

[0004] CN202367993U - A counterweight device for a pressure roller in a paper bag machine, discloses a counterweight device for a pressure roller in a paper bag machine, including a pressure roller, a pressure roller support rod, and at least one counterweight block. The pressure roller is rotatably connected to one end of the pressure roller support rod. Each counterweight block has a groove at its bottom that matches the shape of the pressure roller support rod, and a screw hole is provided on the side of the groove, with a tightening screw inside the screw hole. However, this method also fails to solve the aforementioned technical problem. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a paper bag machine pressing structure that can achieve the die-cutting effect regardless of the thickness of the paper, with obvious creases and only one crease. The paper bag is less likely to produce waste during the later stages of gluing the tube and forming the bottom, which greatly improves the stability of the machine.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a paper bag machine creasing structure, having:

[0007] frame;

[0008] An upper pressure roller mechanism is installed at the upper end of the frame;

[0009] A lower pressure roller mechanism is installed at the lower end of the frame; paper bags can pass between the upper pressure roller mechanism and the lower pressure roller mechanism; the pressure rollers of the upper pressure roller mechanism and the lower pressure roller mechanism are cams and rubber wheels that cooperate with each other, and the cams are provided with protrusions.

[0010] The upper pressure roller mechanism includes an upper mounting block, on which an upper pressure roller is provided; and on which an upper pressure roller is provided.

[0011] The lower pressure roller mechanism includes a lower mounting block, on which a lower pressure roller is provided; and on which a lower pressure roller is provided.

[0012] The upper mounting plate is mounted on the frame via an upper mounting shaft, and the lower mounting plate is mounted on the frame via a lower mounting shaft.

[0013] The upper pressure roller is fixedly mounted on the upper pressure roller; the lower pressure roller is fixedly mounted on the lower pressure roller.

[0014] The frame is also equipped with a paper feeding platform and a conveying roller arranged opposite to each other. The paper feeding platform can support the paper bag, and the conveying roller can convey the paper bag.

[0015] The upper pressure wheel of the upper pressure wheel mechanism is a cam, and the lower pressure wheel of the lower pressure wheel mechanism is a rubber wheel.

[0016] The upper pressure wheel of the upper pressure wheel mechanism is a rubber wheel, and the lower pressure wheel of the lower pressure wheel mechanism is a cam.

[0017] The upper pressure wheel of the upper pressure wheel mechanism is a cam and a rubber wheel; the lower pressure wheel of the lower pressure wheel mechanism is a rubber wheel and a cam adapted to the upper pressure wheel.

[0018] One of the above technical solutions has the following advantages or beneficial effects: it can achieve the die-cutting effect regardless of whether the paper is thin or thick, the creases are obvious and only one crease is produced, and the paper bag is less likely to produce waste during the gluing of the tube and the bottom forming, which greatly improves the stability of the machine. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the paper bag machine creasing structure provided in the embodiments of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the creasing structure of a paper bag machine;

[0021] Figure 3 for Figure 1 A schematic diagram of the creasing structure of a paper bag machine;

[0022] Figure 4 for Figure 1 A schematic diagram of the creasing structure of a paper bag machine;

[0023] The markings in the above figures are all:

[0024] 1. Frame, 2. Lower mounting shaft, 3. Upper mounting shaft

[0025] 4. Lower pressure roller mechanism; 41. Lower mounting block; 42. Lower pressure roller; 43. Lower pressure roller.

[0026] 5. Upper pressure roller mechanism; 51. Upper mounting block; 52. Upper pressure roller; 53. Upper pressure roller.

[0027] 6. Conveyor rollers; 7. Paper feed table;

[0028] 8. Cam, 81. Protrusion, 9. Rubber wheel. Detailed Implementation

[0029] 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.

[0030] See Figures 1-4 A creasing structure for a paper bag machine includes: a frame 1; an upper pressure roller mechanism 5 installed at the upper end of the frame 1; and a lower pressure roller mechanism 4 installed at the lower end of the frame 1. Paper bags can pass between the upper pressure roller mechanism 5 and the lower pressure roller mechanism 4. The pressure rollers of the upper pressure roller mechanism 5 and the lower pressure roller mechanism 4 are mutually cooperating cams 8 and rubber wheels 9, with protrusions 81 on the cams 8. The nitrile rubber-coated wheels perfectly solve the problem of poor creasing effect, achieving die-cutting results regardless of the paper's thickness, with clear creases. The subsequent gluing and bottom forming of the paper bag are less prone to producing defective products, greatly improving the machine's stability.

[0031] The upper pressure roller mechanism 5 includes an upper mounting block 51, on which an upper pressure roller 52 is mounted; and on the upper pressure roller 52, upper pressure rollers 53 are mounted. The upper pressure roller 52 is mounted via the upper mounting block 51, and a series of upper pressure rollers 53 are mounted on the upper pressure roller 52.

[0032] The lower pressure roller mechanism 4 includes a lower mounting block 41, on which a lower pressure roller 42 is mounted; and on the lower pressure roller 42, a series of lower pressure rollers 43 are mounted. The lower pressure roller 42 is mounted via the lower mounting block 41, and a series of lower pressure rollers 43 are mounted on the lower pressure roller 42.

[0033] The upper mounting plate is mounted on the frame 1 via the upper mounting shaft 3, and the lower mounting plate is mounted on the frame 1 via the lower mounting shaft 2. The upper and lower mounting plates are mounted on the frame 1 via mounting shafts 3 and 2, respectively, resulting in a more stable and reliable installation.

[0034] The upper pressure roller 53 is fixedly mounted on the upper pressure roller 52; the lower pressure roller 43 is fixedly mounted on the lower pressure roller 42. During the passage of the paper bag, the upper pressure roller 53 and the lower pressure roller 43 can rotate, driving the paper bag's conveying. Simultaneously, the rotation of the upper and lower pressure rollers serves the purpose of indenting the paper bag.

[0035] The frame 1 is also equipped with a paper feeding platform 7 and a conveying roller 6 arranged opposite to each other. The paper feeding platform 7 can support the paper bags, and the conveying roller 6 can convey the paper bags. This serves the purpose of supporting and conveying the paper bags.

[0036] The upper pressure roller 53 of the upper pressure roller mechanism 5 is a cam 8, and the lower pressure roller 43 of the lower pressure roller mechanism 4 is a rubber wheel 9. Alternatively, the upper pressure roller 53 of the upper pressure roller mechanism 5 is a rubber wheel 9, and the lower pressure roller 43 of the lower pressure roller mechanism 4 is a cam 8. Alternatively, the upper pressure roller 53 of the upper pressure roller mechanism 5 is a cam 8 and a rubber wheel 9; the lower pressure roller 43 of the lower pressure roller mechanism 4 is a rubber wheel 9 and a cam 8 adapted to the upper pressure roller 53. The upper pressure roller 53 and the lower pressure roller 43 only need to use corresponding rubber wheels 9 and cams 8, and the installation position of the rubber wheels 9 and cams 8 is not limited.

[0037] With the above structure, die-cutting can be achieved regardless of whether the paper is thin or thick, with obvious creases and only one crease. The paper bag's back section gluing and bottom forming are less prone to producing defective products, greatly improving the machine's stability.

[0038] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] 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 creasing structure for a paper bag machine, characterized by comprising: Have: Frame; Upper pressing wheel mechanism, installed in the upper end of the frame; Lower pressing wheel mechanism, installed in the lower end of the frame; paper bag can pass between the upper pressing wheel mechanism and the lower pressing wheel mechanism; the pressing wheel of the upper pressing wheel mechanism and the lower pressing wheel mechanism is a cam and a rubber wheel matched with each other, and the cam is provided with a protrusion.

2. The creasing structure of claim 1, wherein The upper pressing wheel mechanism comprises an upper mounting block, and the upper mounting block is provided with an upper pressing roller; the upper pressing roller is provided with an upper pressing wheel.

3. The creasing structure of claim 2, wherein The lower pressing wheel mechanism comprises a lower mounting block, and the lower mounting block is provided with a lower pressing roller; the lower pressing roller is provided with a lower pressing wheel.

4. The creasing structure of claim 3, wherein The upper mounting block is installed on the frame through an upper mounting shaft, and the lower mounting block is installed on the frame through a lower mounting shaft.

5. The creasing structure of claim 3, wherein The upper pressing wheel is fixedly installed on the upper pressing roller; and the lower pressing wheel is fixedly installed on the lower pressing roller.

6. The creasing structure of claim 3, wherein The frame is further provided with oppositely arranged paper running table and conveying roller, the paper running table can support the paper bag, and the conveying roller can convey the paper bag.

7. The creasing structure of a paper bag machine according to any one of claims 1 to 6, wherein The upper pressing wheel of the upper pressing wheel mechanism is a cam, and the lower pressing wheel of the lower pressing wheel mechanism is a rubber wheel.

8. The creasing structure of any one of claims 1 to 4, wherein The upper pressing wheel of the upper pressing wheel mechanism is a rubber wheel, and the lower pressing wheel of the lower pressing wheel mechanism is a cam.

9. The creasing structure of any one of claims 1 to 4, wherein The upper pressing wheel of the upper pressing wheel mechanism is a cam and a rubber wheel; and the lower pressing wheel of the lower pressing wheel mechanism is a rubber wheel and a cam matched with the upper pressing wheel.

Citation Information

Patent Citations

  • Pressing wheel counter weight device for paper bag machine

    CN202367993U