A paper cutting device for a bag making machine

Abstract

This utility model relates to the field of packaging machinery technology, specifically to a paper cutting device for a bag-making machine, including a mounting base, an adjustable blade holder, a quick-change blade module, a guiding and pressing mechanism, and a drive unit. The mounting base consists of a crossbeam and a pair of support seats. The adjustable blade holder includes a transverse slide rail fixedly mounted at the bottom of the crossbeam, a sliding table slidably connected to the transverse slide rail, and a longitudinal adjustment mechanism disposed on the sliding table. This utility model overcomes the shortcomings of the prior art. The mounting base allows for a fixed connection to the side of the bag-making machine conveyor belt. The transverse slide rail and longitudinal adjustment mechanism enable precise displacement of the blade holder in the X / Y axes. The blade can be quickly installed via magnetic attraction. The guiding and pressing mechanism flattens and laterally limits the conveyed paper material, preventing deviation during transport.

Description

Technical Field

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

[0002] In the bag making process, the cutting quality of the paper material directly affects the appearance and performance of the bag. Existing bag making machines have paper material cutting devices that suffer from inaccurate positioning of the cutting mechanism or wear of the cutting parts, resulting in large deviations in the cutting position and affecting the dimensional accuracy of the bag.

[0003] During the cutting process, the paper material is prone to movement or deformation, resulting in uneven cut edges, rough edges, tears, and other defects, which reduces the quality of the bag.

[0004] To address the problems existing in the above-mentioned technologies, a paper cutting device for a bag making machine is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a paper cutting device for a bag making machine, which overcomes the shortcomings of the prior art and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper cutting device for a bag making machine, comprising a mounting base, an adjustable blade holder, a quick-change blade module, a guiding and pressing mechanism, and a drive unit;

[0007] The mounting base consists of a crossbeam and a pair of support seats;

[0008] The adjustable tool holder includes a transverse slide rail fixedly installed at the bottom of the crossbeam, a slide table slidably connected to the transverse slide rail, and a longitudinal adjustment mechanism set on the slide table.

[0009] The quick-change blade module includes a blade holder and blades;

[0010] The guiding and pressing mechanism is located on the front side of the crossbeam in the paper feeding direction, and includes a bracket, an elastic pressure plate, and symmetrically arranged limiting rollers.

[0011] The mounting base can be fixedly connected to the side of the bag making machine conveyor belt. Through the transverse slide rail and longitudinal adjustment mechanism, the knife holder can be precisely displaced in the X / Y axis. The blade can be quickly installed by magnetic attraction. The guiding and pressing mechanism can flatten and laterally limit the conveyed paper material to prevent the paper material from deviating during the conveying process.

[0012] As a preferred embodiment of this utility model, the support base is provided with a vertical sliding groove, and both ends of the crossbeam are fixedly installed with sliders adapted to the vertical sliding groove. The drive unit is installed on the inner side of the support base.

[0013] The drive unit installed inside the support can drive the crossbeam to move up and down along the vertical chute, thereby driving the blade to vertically cut the conveyed paper material.

[0014] As a preferred embodiment of this utility model, the drive unit is a single-rod cylinder, with the piston rod end connected to the crossbeam.

[0015] As a preferred technical solution of this utility model, the sliding table is provided with fastening bolts for positioning the sliding table, and a longitudinal groove is provided at the bottom of the sliding table, the longitudinal groove intersecting the axis of the transverse slide rail at 90°.

[0016] The horizontal slide rail and the vertical slide groove enable fine-tuning of the blade cutting position, solving the problem of coarse positioning in traditional devices.

[0017] As a preferred technical solution of this utility model, the longitudinal adjustment mechanism includes a screw rotatably mounted on a sliding table, a handwheel fixedly mounted on one end of the screw, the screw being connected to the tool holder through a threaded cylinder, and a sliding table formed on the top of the tool holder that is slidably connected to the longitudinal groove.

[0018] By rotating the handwheel, the position of the tool holder can be adjusted along the longitudinal groove direction to achieve precise positioning.

[0019] As a preferred embodiment of this utility model, a strong magnet is embedded in the inner wall of the blade holder, a positioning post is fixedly installed on the blade holder, and a snap-fit ​​hole adapted to the positioning post is formed on the blade.

[0020] The strong magnet on the inner wall of the blade holder can magnetically connect with the blade, and the positioning pin can be matched with the snap hole on the blade to facilitate quick blade replacement.

[0021] As a preferred embodiment of this utility model, the elastic pressure plate is connected to the bracket via a telescopic column, and a spring is provided around the telescopic column.

[0022] The elastic pressure plate can flatten the paper material passing through it along the telescopic column under the action of the spring.

[0023] As a preferred technical solution of this utility model, the surface of the limiting roller is provided with a V-shaped guide groove with a groove depth of 2mm, which forms a line contact with the edge of the paper material.

[0024] The limit rollers can position the paper material laterally and prevent it from deviating.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] The mounting base can be fixedly connected to the side of the bag making machine conveyor belt. Through the transverse slide rail and longitudinal adjustment mechanism, the knife holder can be precisely displaced in the X / Y axis. The blade can be quickly installed by magnetic attraction. The guiding and pressing mechanism can flatten and laterally limit the conveyed paper material to prevent the paper material from deviating during the conveying process. Attached Figure Description

[0027] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0028] Figure 2 This is a front view schematic diagram of the present utility model;

[0029] Figure 3 This is a schematic diagram of the mounting base assembly of this utility model;

[0030] Figure 4 For the present utility model Figure 3 A magnified view of a portion of point A in the middle.

[0031] In the diagram: 1. Crossbeam; 101. Slider; 2. Support base; 201. Vertical slide groove; 3. Horizontal slide rail; 4. Sliding table; 5. Longitudinal slide groove; 6. Fastening bolt; 7. Tool holder; 8. Positioning pin; 9. Blade; 10. Screw; 11. Threaded cylinder; 12. Handwheel; 13. Bracket; 14. Telescopic column; 15. Spring; 16. Elastic pressure plate; 17. Limiting roller; 18. Single-rod cylinder. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-4 A paper cutting device for a bag making machine includes a mounting base, an adjustable blade holder, a quick-change blade module, a guiding and pressing mechanism, and a drive unit.

[0034] The mounting base consists of a crossbeam 1 and a pair of support seats 2;

[0035] The adjustable tool holder includes a transverse slide rail 3 fixedly installed at the bottom of the crossbeam 1, a sliding table 4 slidably connected to the transverse slide rail 3, and a longitudinal adjustment mechanism provided on the sliding table 4.

[0036] The quick-change blade module includes a tool holder 7 and a blade 9;

[0037] The guiding and pressing mechanism is located on the front side of the crossbeam 1 in the paper feeding direction, and includes a bracket 13, an elastic pressure plate 16 and symmetrically arranged limiting rollers 17.

[0038] The mounting base can be fixedly connected to the side of the bag making machine conveyor belt. The transverse slide rail 3 and the longitudinal adjustment mechanism can achieve precise displacement of the knife holder 7 in the X / Y axis. The blade 9 can be quickly installed by magnetic attraction. The guiding pressing mechanism can flatten the conveyed paper material and limit its movement laterally to prevent the paper material from deviating during the conveying process.

[0039] Specifically, the support base 2 is provided with a vertical slide groove 201, and both ends of the crossbeam 1 are fixedly installed with sliders 101 that are adapted to the vertical slide groove 201. The drive unit is installed inside the support base 2. The drive unit installed inside the support base 2 can drive the crossbeam 1 to move up and down along the vertical slide groove 201, thereby driving the blade 9 to vertically cut the conveyed paper material.

[0040] Specifically, the drive unit is a single-rod cylinder 18, with the piston rod end connected to the crossbeam 1.

[0041] Specifically, the sliding table 4 is provided with fastening bolts 6 for positioning the sliding table 4, and the bottom of the sliding table 4 is provided with a longitudinal groove 5. The longitudinal groove 5 intersects the axis of the transverse slide rail 3 at 90°. Through the transverse slide rail 3 and the longitudinal groove 5, the cutting position of the blade 9 can be finely adjusted, solving the problem of coarse positioning in traditional devices.

[0042] Specifically, the longitudinal adjustment mechanism includes a screw 10 rotatably mounted on the sliding table 4. A handwheel 12 is fixedly mounted on one end of the screw 10. The screw 10 is connected to the tool holder 7 through a threaded cylinder 11. The top of the tool holder 7 forms a sliding table that is slidably connected to the longitudinal slide groove 5. By rotating the handwheel 12, the position of the tool holder 7 can be adjusted along the longitudinal slide groove 5 to achieve precise positioning.

[0043] Specifically, a strong magnet is embedded in the inner wall of the tool holder 7, and a positioning post 8 is fixedly installed on the tool holder 7. The blade 9 has a snap-fit ​​hole that matches the positioning post 8. The strong magnet in the inner wall of the tool holder 7 can be magnetically connected to the blade 9. The quick replacement of the blade 9 can be easily achieved by matching the positioning post 8 with the snap-fit ​​hole on the blade 9.

[0044] Specifically, the elastic pressure plate 16 is connected to the bracket 13 through the telescopic column 14. The telescopic column 14 is provided with a spring 15. The elastic pressure plate 16 can flatten the paper material passing through along the telescopic column 14 under the action of the spring 15.

[0045] Specifically, the limiting roller 17 has a V-shaped guide groove on its surface with a groove depth of 2mm, which forms a line contact with the edge of the paper material. The limiting roller 17 can position the paper material laterally and limit the paper material from deviating.

[0046] Working principle: The mounting base can be fixedly connected to the side of the bag making machine conveyor belt. Through the transverse slide rail 3 and the longitudinal adjustment mechanism, the knife holder 7 can be accurately displaced in the X / Y axis. The blade 9 can be quickly installed by magnetic attraction. The guiding and pressing mechanism can flatten the conveyed paper material and limit its movement laterally to prevent the paper material from deviating during the conveying process.

[0047] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] The above description is merely 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 embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 paper cutting device for a bag making machine, characterized in that: It includes a mounting base, an adjustable tool holder, a quick-change blade module, a guide and pressure mechanism, and a drive unit; The mounting base consists of a crossbeam (1) and a pair of support seats (2); The adjustable tool holder includes a transverse slide rail (3) fixedly installed at the bottom of the crossbeam (1), a sliding table (4) slidably connected to the transverse slide rail (3), and a longitudinal adjustment mechanism provided on the sliding table (4); The quick-change blade module includes a blade holder (7) and a blade (9); The guiding pressing mechanism is located on the front side of the crossbeam (1) in the paper conveying direction, and includes a bracket (13), an elastic pressure plate (16) and symmetrically arranged limiting rollers (17).

2. The paper cutting device for a bag making machine according to claim 1, characterized in that: The support base (2) is provided with a vertical slide groove (201), and both ends of the crossbeam (1) are fixedly installed with sliders (101) that are adapted to the vertical slide groove (201). The drive unit is installed on the inner side of the support base (2).

3. The paper cutting device for a bag making machine according to claim 1, characterized in that: The drive unit is a single-rod cylinder (18), with the piston rod end connected to the crossbeam (1).

4. The paper cutting device for a bag making machine according to claim 1, characterized in that: The sliding table (4) is provided with fastening bolts (6) for positioning the sliding table (4), and a longitudinal groove (5) is provided at the bottom of the sliding table (4). The longitudinal groove (5) intersects the axis of the transverse slide rail (3) at 90°.

5. The paper cutting device for a bag making machine according to claim 4, characterized in that: The longitudinal adjustment mechanism includes a screw (10) rotatably mounted on a sliding table (4), a handwheel (12) fixedly mounted at one end of the screw (10), the screw (10) being connected to the tool holder (7) through a threaded cylinder (11), and a sliding table formed on the top of the tool holder (7) being slidably connected to the longitudinal slide groove (5).

6. The paper cutting device for a bag making machine according to claim 1, characterized in that: The inner wall of the blade holder (7) is embedded with a strong magnet, and a positioning post (8) is fixedly installed on the blade holder (7). The blade (9) has a snap-fit ​​hole that matches the positioning post (8).

7. The paper cutting device for a bag making machine according to claim 1, characterized in that: The elastic pressure plate (16) is connected to the bracket (13) through the telescopic column (14), and the telescopic column (14) is provided with a spring (15) on its periphery.

8. The paper cutting device for a bag making machine according to claim 1, characterized in that: The limiting roller (17) has a V-shaped guide groove on its surface, with a groove depth of 2mm, which forms a line contact with the edge of the paper material.

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