Paper feeding and rectifying structure of a bag making machine

Abstract

This utility model discloses a paper feeding and correction structure for a bag-making machine, relating to the technical field of paper feeding and correction equipment. It includes a correction worktable, with a mounting plate at one end. Through holes on the upper and lower sides of the mounting plate, bearings rotatably connect to an upper conveyor roller and a lower conveyor roller, respectively. Each of the upper and lower conveyor rollers has a toothed ring at one end, and the two toothed rings mesh. Both the upper and lower conveyor rollers are hollow inside. A connecting disc is located inside one end of the lower conveyor roller. A reduction motor is mounted on the mounting plate via a connecting plate, and the output shaft of the reduction motor is fixedly connected to the center of the connecting disc. A hollow mounting cylinder is horizontally mounted on the correction worktable via a support plate. This utility model, through the cooperation of a correction belt and a correction traction wheel, can double-press the paper, effectively preventing paper deviation.

Description

Technical Field

[0001] This utility model relates to the technical field of paper bag feeding and correction equipment, specifically a paper feeding and correction structure for a bag making machine. Background Technology

[0002] In the production process of paper bag making machines, paper feeding and conveying is a crucial initial step. Its core task is to smoothly and accurately guide and transport the rolled paper substrate to subsequent stations such as creasing, gluing, and cutting. The bag making process requires that the paper must change from a horizontal state during unwinding to a vertical state when entering the processing unit in order to allow for side gluing and shaping of the bag body.

[0003] This transition process results in the paper's path not being a straight line. Normally, after being unwound horizontally, the paper is guided by multiple guide rollers until its centerline coincides with the machine's theoretical centerline, entering a vertical conveying state. However, it is precisely this "turning" process from horizontal to vertical, especially when the turning point is located in the middle area of ​​the paper width, that, according to the principles of mechanics, causes the paper to experience a biasing force that pulls it toward the machine's theoretical centerline.

[0004] However, existing technologies still have shortcomings in use: traditional paper feeding structures lack a paper correction structure when feeding paper, which causes the paper to shift under the action of offset force. Because the shifted paper is very prone to paper bag wrinkles in subsequent processing, operators need to stop the machine frequently for manual adjustment, which seriously restricts the production efficiency of the equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a paper feeding and correction structure for a bag making machine. Through the cooperation of the correction belt and the correction traction wheel, the paper can be double-pressed, effectively preventing the paper from shifting, and effectively solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper feeding and correction structure for a bag-making machine, comprising a correction worktable, an mounting plate at one end of the correction worktable, and bearings respectively connecting the upper and lower conveying rollers through through holes on the upper and lower sides of the mounting plate. Each of the upper and lower conveying rollers has a toothed ring at one end, and the two toothed rings mesh. Both the upper and lower conveying rollers are hollow inside. A connecting disc is located inside one end of the lower conveying roller. A reduction motor is mounted on the mounting plate via a connecting plate, and the output shaft of the reduction motor is fixedly connected to the center position of the connecting disc. The correction worktable is horizontally mounted with a support plate. The interior of the mounting cylinder is hollow, and an adjusting plate is movably mounted inside the mounting cylinder. An adjusting slider is mounted on the adjusting plate, and a correction belt is mounted at the lower end of the adjusting slider. The correction belt contacts the upper surface of the correction worktable under its own elastic force. An adjusting groove is provided on the mounting cylinder to cooperate with the adjusting slider. An adjusting component is provided inside the mounting cylinder and is connected to the adjusting plate. A correction traction wheel corresponding to the correction belt is movably mounted on the upper conveyor roller, and the correction traction wheel is connected to the adjusting plate through a linkage correction component. The paper passes between the upper and lower conveyor rollers, simultaneously passing under the alignment belt. The geared motor operates, its output shaft driving the connecting disc, which in turn rotates the lower conveyor roller. The lower conveyor roller, via a gear ring, drives the upper conveyor roller. Both the upper and lower conveyor rollers transport the paper. The alignment belt, through its elasticity, applies a downward force to the paper. Furthermore, because the gap between the alignment traction wheel and the lower conveyor roller is slightly smaller than the paper's thickness, the alignment traction wheel also provides slight pressure on the paper. This double pressure from the alignment belt and the alignment traction wheel effectively prevents paper misalignment, eliminating the need for frequent manual adjustments and preventing adverse effects. To improve equipment production efficiency, when the paper width is narrow, in order for the correction belt and correction traction wheel to press the paper firmly, the handwheel is turned. The handwheel drives the screw to rotate, and the screw drives the adjusting plate to move inward along the mounting cylinder. The adjusting plate drives the adjusting slider to slide along the adjusting groove, and the adjusting slider drives the correction belt to move inward. At the same time, the adjusting plate also drives the linkage rod to move, and the linkage rod drives the linkage plate to move inward. The linkage plate drives the displacement slider to slide along the displacement groove through the bearing two, and the displacement slider drives the correction traction wheel to move inward. This allows the correction traction wheel and correction belt to move synchronously, thereby enabling the synchronous adjustment of the positions of the correction belt and correction traction wheel, and achieving the function of pressing and preventing paper of different widths from deviating.

[0007] Furthermore, the adjusting component is a screw horizontally arranged inside the mounting cylinder. The screw passes through the adjusting disc and is threadedly connected to the adjusting disc. The length of the thread on the screw is equal to the length of the adjusting groove. The two ends of the screw are rotatably connected to the two ends of the mounting cylinder through a fixing plate.

[0008] Furthermore, the linkage correction component is a linkage disk movably installed inside the upper conveying roller. One circumference of the linkage disk is connected to the inner ring of the second bearing. The outer ring of the second bearing is fixedly connected to the correction traction wheel through a displacement slider. The upper conveying roller is provided with a displacement groove that cooperates with the displacement slider. The length of the displacement groove is equal to the length of the adjustment groove, and the displacement groove corresponds to the adjustment groove. The linkage disk is fixedly connected to the adjustment disk through a linkage rod.

[0009] Furthermore, the outer circumference of the alignment guide wheel is provided with an alignment sticker, which is made of soft material. The alignment sticker can enhance the clamping force between the alignment sticker and the paper.

[0010] Furthermore, the guiding belt has a smooth surface, and the end of the guiding belt facing the upper conveyor roller has a rounded corner. The smooth surface and rounded corners of the guiding belt can prevent it from scratching the paper.

[0011] Furthermore, a handwheel is provided at one end of the screw. The handwheel can increase the turning radius, making it easier to turn.

[0012] Furthermore, the handwheel is evenly provided with anti-slip textures at equal angles around its circumference. These anti-slip textures enhance the friction between the hand and the skin.

[0013] Furthermore, the upper surface of the alignment worktable has rounded corners at both ends. This rounded corner design prevents scratching the paper.

[0014] Based on the above technical solution, the beneficial effects achieved by the paper feeding and correction structure of this utility model in practical application are as follows: 1. This utility model utilizes the cooperation between the alignment belt and the alignment traction wheel. The elasticity of the alignment belt itself applies a downward force to the paper. Since the gap between the alignment traction wheel and the lower conveyor roller is slightly smaller than the thickness of the paper, the alignment traction wheel can also slightly compress the paper. Thus, the paper is doubly compressed by the alignment belt and the alignment traction wheel, which effectively prevents the paper from shifting. This eliminates the need for operators to frequently stop the machine to manually adjust the paper, thus preventing any impact on the equipment's production efficiency.

[0015] 2. This utility model utilizes the cooperation between the screw, adjusting disc, and adjusting slider to adjust the position of the correction belt. At the same time, it utilizes the cooperation between the linkage rod, linkage disc, and bearing two. Since the linkage disc and the correction traction wheel are rotatably connected through bearing two, the correction traction wheel can be moved synchronously when adjusting the position of the correction belt without affecting the rotation of the upper conveyor roller. This can prevent paper of different widths from shifting. Attached Figure Description

[0016] Figure 1 This is a front-view three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a side view of the three-dimensional structure of this utility model.

[0018] Figure 3 This is a bottom-view three-dimensional structural diagram of the present invention after the correction workbench has been removed.

[0019] Figure 4 This is a three-dimensional structural diagram of the adjustable paper correction component in this utility model.

[0020] Figure 5 This is a three-dimensional structural diagram of the linkage correction component in this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the paper placed on the alignment workbench during use.

[0022] In the diagram: 1-Correction workbench, 2-Support plate, 3-Mounting cylinder, 4-Fixing plate, 5-Screw, 6-Handwheel, 7-Correction belt, 8-Linkage rod, 9-Mounting plate, 10-Bearing 1, 11-Upper conveyor roller, 12-Lower conveyor roller, 13-Displacement groove, 14-Correction sticker, 15-Correction traction wheel, 16-Gear ring, 17-Connecting disc, 18-Gear motor, 19-Adjustment groove, 20-Adjustment slider, 21-Displacement slider, 22-Bearing 2, 23-Linkage disc, 24-Adjustment disc. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-6This embodiment provides a technical solution: a paper feeding and correction structure for a bag making machine, including a correction workbench 1. One end of the correction workbench 1 is provided with a mounting plate 9. Through holes on the upper and lower sides of the mounting plate 9, bearings 10 are respectively rotatably connected to an upper conveying roller 11 and a lower conveying roller 12. One end of both the upper and lower conveying rollers 11 and 12 is provided with a toothed ring 16, and the two toothed rings 16 mesh. The interiors of both the upper and lower conveying rollers 11 and 12 are hollow. A connecting disc 17 is provided inside one end of the lower conveying roller 12. A reduction motor 18 is mounted on the mounting plate 9 via a connecting plate. The output shaft of the reduction motor 18 is fixedly connected to the center position of the connecting disc 17. A mounting cylinder 3 is horizontally mounted on the offset worktable 1 via a support plate 2. The interior of the mounting cylinder 3 is hollow, and an adjusting plate 24 is movably mounted inside the mounting cylinder 3. An adjusting slider 20 is mounted on the adjusting plate 24, and a correction belt 7 is mounted at the lower end of the adjusting slider 20. The correction belt 7 contacts the upper surface of the correction worktable 1 under its own elastic force. An adjusting groove 19 is provided on the mounting cylinder 3 to cooperate with the adjusting slider 20. An adjusting component is provided inside the mounting cylinder 3, and the adjusting component is connected to the adjusting plate 24. A correction traction wheel 15 corresponding to the correction belt 7 is movably mounted on the upper conveyor roller 11, and the correction traction wheel 15 is connected to the adjusting plate 24 through a linkage correction component. The paper passes between the upper conveyor roller 11 and the lower conveyor roller 12, simultaneously passing under the guide belt 7. The geared motor 18 operates, its output shaft driving the connecting disc 17 to rotate. The connecting disc 17 then drives the lower conveyor roller 12, which in turn drives the upper conveyor roller 11 via the gear ring 16. The upper and lower conveyor rollers 11 and 12 convey the paper. The guide belt 7 applies a downward force to the paper through its elasticity. Furthermore, because the gap between the guide traction wheel 15 and the lower conveyor roller 12 is slightly smaller than the paper thickness, the guide traction wheel 15 also provides slight pressure on the paper. This double pressure from the guide belt 7 and the guide traction wheel 15 effectively prevents paper deviation, eliminating the need for frequent machine stops for manual paper adjustment and preventing disruption to equipment operation. To improve production efficiency, when the paper width is narrow, in order for the correction belt 7 and the correction traction wheel 15 to press the paper tightly, the handwheel 6 is turned. The handwheel 6 drives the screw 5 to rotate, and the screw 5 drives the adjusting plate 24 to move inward along the mounting cylinder 3. The adjusting plate 24 drives the adjusting slider 20 to slide along the adjusting groove 19. The adjusting slider 20 drives the correction belt 7 to move inward. At the same time, the adjusting plate 24 also drives the linkage rod 8 to move. The linkage rod 8 drives the linkage plate 23 to move inward. The linkage plate 23 drives the displacement slider 21 to slide along the displacement groove 13 through the bearing 22. The displacement slider 21 drives the correction traction wheel 15 to move inward, so that the correction traction wheel 15 and the correction belt 7 can move synchronously. This allows the position of the correction belt 7 and the correction traction wheel 15 to be adjusted synchronously, thereby achieving the function of pressing and preventing deviation of paper of different widths.

[0025] Furthermore, the adjustment component is a screw 5 horizontally set inside the mounting cylinder 3. The screw 5 passes through the adjustment plate 24 and is threadedly connected to the adjustment plate 24. The length of the thread on the screw 5 is equal to the length of the adjustment groove 19. The two ends of the screw 5 are rotatably connected to the two ends of the mounting cylinder 3 through the fixing plate 4.

[0026] Furthermore, the linkage correction component is a linkage disk 23 movably installed inside the upper conveying roller 11. One circumference of the linkage disk 23 is connected to the inner ring of the second bearing 22. The outer ring of the second bearing 22 is fixedly connected to the correction traction wheel 15 through the displacement slider 21. The upper conveying roller 11 is provided with a displacement groove 13 that cooperates with the displacement slider 21. The length of the displacement groove 13 is equal to the length of the adjustment groove 19, and the displacement groove 13 corresponds to the adjustment groove 19. The linkage disk 23 is fixedly connected to the adjustment disk 24 through the linkage rod 8.

[0027] Furthermore, the outer circumference of the alignment guide wheel 15 is provided with an alignment sticker 14, which is made of soft material. The alignment sticker 14 can enhance the clamping force between the alignment sticker and the paper.

[0028] Furthermore, the surface of the correction belt 7 is smooth, and the end of the correction belt 7 facing the upper conveyor roller 11 is rounded. The smooth surface and rounded corners of the correction belt 7 can prevent the correction belt 7 from scratching the paper.

[0029] Furthermore, a handwheel 6 is provided at one end of the screw 5. The handwheel 6 can increase the turning radius, making it easier to turn.

[0030] Furthermore, the handwheel 6 is evenly patterned with anti-slip textures at equal angles around its circumference. These textures enhance friction with the hand.

[0031] Furthermore, the upper surface of the alignment worktable 1 has rounded corners at both ends. This rounded corner design prevents scratching the paper.

[0032] The working principle of the paper feeding and correction structure for a bag making machine provided by this utility model is as follows: In operation, the paper is passed between the upper conveyor roller 11 and the lower conveyor roller 12, simultaneously passing under the alignment belt 7. The reduction motor 18 operates, and its output shaft drives the connecting disc 17 to rotate. The connecting disc 17 then drives the lower conveyor roller 12 to rotate, which in turn drives the upper conveyor roller 11 via the gear ring 16. The upper and lower conveyor rollers 11 and 12 convey the paper. The alignment belt 7 applies a downward force to the paper through its elasticity. Furthermore, because the gap between the alignment traction wheel 15 and the lower conveyor roller 12 is slightly smaller than the paper thickness, the alignment traction wheel 15 also provides slight pressure on the paper. This double pressure from the alignment belt 7 and the alignment traction wheel 15 effectively prevents paper misalignment, eliminating the need for frequent machine stops for manual paper adjustment and preventing potential impacts. To improve equipment production efficiency, when the paper width is narrow, in order for the correction belt 7 and the correction traction wheel 15 to press the paper tightly, the handwheel 6 is turned. The handwheel 6 drives the screw 5 to rotate, and the screw 5 drives the adjusting plate 24 to move inward along the mounting cylinder 3. The adjusting plate 24 drives the adjusting slider 20 to slide along the adjusting groove 19. The adjusting slider 20 drives the correction belt 7 to move inward. At the same time, the adjusting plate 24 also drives the linkage rod 8 to move. The linkage rod 8 drives the linkage plate 23 to move inward. The linkage plate 23 drives the displacement slider 21 to slide along the displacement groove 13 through the bearing 22. The displacement slider 21 drives the correction traction wheel 15 to move inward, so that the correction traction wheel 15 and the correction belt 7 can move synchronously. This allows the position of the correction belt 7 and the correction traction wheel 15 to be adjusted synchronously, achieving the function of pressing and preventing deviation of paper of different widths.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A paper feeding and correction structure for a bag making machine, comprising a correction worktable, a mounting plate at one end of the correction worktable, through holes on the upper and lower sides of the mounting plate respectively connected to an upper conveying roller and a lower conveying roller via bearings, one end of each of the upper and lower conveying rollers being provided with a toothed ring, the two toothed rings being meshed, the interiors of the upper and lower conveying rollers being hollow, a connecting disc being provided inside one end of the lower conveying roller, a reduction motor being mounted on the mounting plate via a connecting plate, the output shaft of the reduction motor being fixedly connected to the center position of the connecting disc, characterized in that: A mounting cylinder is horizontally mounted on the correction workbench via a support plate. The interior of the mounting cylinder is hollow, and an adjusting disc is movably mounted inside. An adjusting slider is mounted on the adjusting disc, and a correction belt is mounted at the lower end of the adjusting slider. The correction belt contacts the upper surface of the correction workbench under its own elastic force. An adjusting groove is provided on the mounting cylinder to cooperate with the adjusting slider. An adjusting component is provided inside the mounting cylinder and is connected to the adjusting disc. A correction traction wheel corresponding to the correction belt is movably mounted on the upper conveyor roller, and the correction traction wheel is connected to the adjusting disc via a linkage correction component.

2. The paper feeding and correction structure for a bag-making machine according to claim 1, characterized in that: The adjusting component is a screw horizontally installed inside the mounting cylinder. The screw passes through the adjusting disc and is threadedly connected to the adjusting disc. The length of the thread on the screw is equal to the length of the adjusting groove. The two ends of the screw are rotatably connected to the two ends of the mounting cylinder through a fixing plate.

3. The paper feeding and correction structure for a bag-making machine according to claim 1, characterized in that: The linkage correction component is a linkage disc movably installed inside the upper conveying roller. One circumference of the linkage disc is connected to the inner ring of the second bearing. The outer ring of the second bearing is fixedly connected to the correction traction wheel through a displacement slider. The upper conveying roller is provided with a displacement groove that cooperates with the displacement slider. The length of the displacement groove is equal to the length of the adjustment groove, and the displacement groove corresponds to the adjustment groove. The linkage disc is fixedly connected to the adjustment disc through a linkage rod.

4. The paper feeding and correction structure for a bag-making machine according to claim 3, characterized in that: The outer rim of the correction traction wheel is provided with a correction sticker, which is made of soft material.

5. The paper feeding and correction structure for a bag-making machine according to claim 1, characterized in that: The surface of the correction belt is smooth, and the end of the correction belt facing the upper conveyor roller has a rounded corner.

6. The paper feeding and correction structure for a bag-making machine according to claim 2, characterized in that: A handwheel is provided at one end of the screw.

7. The paper feeding and correction structure for a bag-making machine according to claim 6, characterized in that: The handwheel is evenly provided with anti-slip textures at equal angles around its circumference.

8. The paper feeding and correction structure for a bag-making machine according to claim 1, characterized in that: The upper surface of the correction workbench has rounded corners at both ends.

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