Cutting mechanism of flat bag making machine

Abstract

This utility model provides a cutting mechanism for a flat-mouth bag making machine, relating to the field of bag making machine technology. The utility model includes a worktable, which is supported by legs placed on the ground. A feeding roller is rotatably connected to the upper surface of the worktable via a support plate. A motor is mounted on one side of the support plate, and the motor drives the feeding roller to rotate via a reducer. Two conveying rollers are rotatably connected to the upper surface of the worktable via a bracket, allowing the packaging bag to pass through the gap between the two conveying rollers. A U-shaped frame is mounted on the upper surface of the worktable, and a cylinder is fixedly connected to the surface of the U-shaped frame. A cutting blade is fixedly connected to the output end of the cylinder. A limiting device is located on the upper surface of the worktable, between the conveying rollers and the cutting blade. This utility model achieves the effect of limiting the packaging bag through the limiting device, preventing the packaging bag from tilting and thus avoiding unqualified cutting.

Description

Technical Field

[0001] This utility model relates to the field of bag making machine technology, and in particular to the cutting mechanism of a flat-mouth bag making machine. Background Technology

[0002] Bag making machines are an indispensable piece of equipment in the modern packaging industry and are widely used in packaging production lines in the food, pharmaceutical, and daily necessities industries. The cutting mechanism is one of the core components of the bag making machine and plays a vital role. It is responsible for accurately dividing the continuous film bags into individual packaging products during the bag making process, ensuring that each product has a complete shape and size.

[0003] When cutting packaging bags with existing technology, the packaging bags are prone to skewing, resulting in deviations in the cut edge, poor cutting quality, and reduced practicality of the cutting machine. Utility Model Content

[0004] This utility model proposes a cutting mechanism for a flat-mouth bag making machine to overcome the shortcomings of existing technologies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cutting mechanism for a flat-mouth bag making machine, including a worktable. The worktable is placed on the ground by means of support legs to provide overall support. The feeding roller is rotatably connected to the upper surface of the worktable by means of a support plate. A motor is installed on one side of the support plate. The motor can drive the feeding roller to rotate by means of a reducer. Two conveying rollers are rotatably connected to the upper surface of the worktable by means of a bracket. The packaging bag can pass through the gap between the two conveying rollers. A U-shaped frame is installed on the upper surface of the worktable. A cylinder is fixedly connected to the surface of the U-shaped frame. A cutting blade is fixedly connected to the output end of the cylinder. A limiting device is set on the upper surface of the worktable. The limiting device is located between the conveying roller and the cutting blade. The limiting device can limit the packaging bag.

[0006] The effect achieved by the above components is as follows: when the packaging bag needs to be processed, the worker first turns on the motor on the support plate. The motor drives the feeding roller to rotate with the help of the reducer. The packaging bag on the feeding roller enters between the two conveying rollers. The conveying rollers smooth the packaging bag to avoid wrinkles. Finally, the packaging bag moves to the bottom of the U-shaped frame. At this time, the cylinder is turned on. The cylinder drives the cutting blade to move downward and cuts the packaging bag.

[0007] Preferably, the limiting device includes two fixed plates, which are respectively fixedly connected to the upper surface of the workbench. A sliding plate is slidably passed through the surface of the fixed plate. A limiting plate is fixedly connected to one end of the sliding plate. An L-shaped plate is fixedly connected to the upper surface of the fixed plate. A bolt is threaded into the surface of the L-shaped plate, wherein the bolt passes through one end of the L-shaped plate and can compress the sliding plate.

[0008] The effect achieved by the above components is as follows: Before the packaging bag needs to be processed, the worker moves the slide plate on the fixed plate. The two slide plates, along with the two limiting plates, move closer to each other. When the distance between the two limiting plates matches the width of the packaging bag, the worker stops moving the slide plate and rotates the bolt on the L-shaped plate. The bolt passes through the L-shaped plate and presses the top of the slide plate, thus fixing the slide plate. When the packaging bag moves between the two limiting plates, the two limiting plates limit the packaging bag to prevent it from tilting. The limiting device achieves the effect of limiting the packaging bag to prevent it from tilting, which could lead to unqualified cutting of the packaging bag.

[0009] Preferably, a handle is fixedly connected to one end of the skateboard, and the surface of the handle is provided with anti-slip texture.

[0010] The effect achieved by the above-mentioned components is that by setting up handles, it is possible for staff to move the skateboard more easily, thus bringing convenience to the staff.

[0011] Preferably, the top of the skateboard has a groove, and a plurality of anti-slip strips are fixedly connected to the skateboard by means of the groove, wherein the anti-slip strips are made of rubber.

[0012] The effect achieved by the above components is to increase the friction between the bolt and the slide plate by using the anti-slip strip in the groove, thereby preventing the slide plate and the bolt from shaking.

[0013] Preferably, a scale strip is provided on one side of the skateboard.

[0014] The effect achieved by the above components is that by setting scale strips, it is easier for staff to judge the position of the sliding plate and the limiting plate, thus bringing convenience to the staff.

[0015] Preferably, a telescopic rod is fixedly connected to the rear side of the limiting plate, wherein one end of the telescopic rod is fixedly connected to the fixed plate.

[0016] The effect achieved by the above components is that by setting the telescopic rod, the movement direction of the limit plate is restricted, thus preventing the limit plate from shaking.

[0017] Preferably, one side of the limiting plate is provided with an edge sealing mechanism, the edge sealing mechanism includes a base plate, the base plate is fixedly connected to one side of the limiting plate, and an edge cutting knife is fixedly connected to one side of the limiting plate, wherein the edge cutting knife is located above the base plate, and a rotating roller is rotatably connected to one side of the limiting plate, wherein a heating wire is provided inside the rotating roller.

[0018] The effect achieved by the above components is as follows: when the packaging bag enters between the two limiting plates, the packaging bag enters above the bottom plate. At this time, the edge cutting knife cuts the rough edges on the side of the packaging bag. As the packaging bag continues to move, the cut side of the packaging bag moves to the bottom of the rotating roller. At this time, the heating wire inside the rotating roller is turned on, and the heating wire heats the rotating roller. The heated rotating roller and the bottom plate work together to heat seal the side of the packaging bag. The sealing mechanism achieves the effect of cleaning up the waste on both sides of the packaging bag, thus improving the quality of the packaging bag.

[0019] Preferably, a slope is provided on one side of the base plate, wherein the slope is inclined toward the direction of the conveyor roller.

[0020] The effect achieved by the above components is that the ramp guides the packaging bag, making it easier for the packaging bag to enter the top of the base plate.

[0021] In summary, the beneficial effects of this utility model are as follows:

[0022] Before processing the packaging bag, the worker moves the sliding plates on the fixed plate. The two sliding plates, along with the two limiting plates, move closer to each other. When the distance between the two limiting plates matches the width of the packaging bag, the worker stops moving the sliding plates and rotates the bolts on the L-shaped plate. The bolts pass through the L-shaped plate and press against the top of the sliding plates, thus fixing the sliding plates in place. When the packaging bag moves between the two limiting plates, the two limiting plates limit the packaging bag to prevent it from tilting. The limiting device effectively limits the packaging bag, preventing it from tilting and thus avoiding unqualified cutting of the packaging bag. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the limiting device of this utility model;

[0025] Figure 3 This utility model Figure 2 A schematic diagram of the three-dimensional structure of some parts;

[0026] Figure 4 This utility model Figure 3 Enlarged view of point A;

[0027] Figure 5 This is a three-dimensional structural diagram of the limiting plate of this utility model.

[0028] Legend: 1. Workbench; 2. Feed roller; 3. Conveyor roller; 4. U-shaped frame; 5. Cylinder; 6. Cutting knife; 7. Limiting device; 71. Fixing plate; 72. Slide plate; 73. Limiting plate; 74. L-shaped plate; 75. Bolt; 76. Groove; 77. Anti-slip strip; 78. Scale strip; 79. Handle; 710. Telescopic rod; 8. Edge sealing mechanism; 81. Base plate; 82. Edge cutting knife; 83. Rotating roller; 84. Ramp. Detailed Implementation

[0029] Reference Figure 1-5 As shown, this embodiment discloses a cutting mechanism for a flat-mouth bag making machine, including a worktable 1, which is supported by legs placed on the ground; a feeding roller 2, which is rotatably connected to the upper surface of the worktable 1 by a support plate, wherein a motor is installed on one side of the support plate, and the motor can drive the feeding roller 2 to rotate by a reducer; two conveying rollers 3, which are rotatably connected to the upper surface of the worktable 1 by a bracket, wherein the packaging bag can pass through the gap between the two conveying rollers 3; a U-shaped frame 4, which is installed on the upper surface of the worktable 1, and a cylinder 5 is fixedly connected to the surface of the U-shaped frame 4, wherein a cutting blade 6 is fixedly connected to the output end of the cylinder 5; and a limiting device 7, which is located on the upper surface of the worktable 1, between the conveying roller 3 and the cutting blade 6, wherein the limiting device 7 can limit the packaging bag. When the packaging bag needs to be processed, the staff first turns on the motor on the support plate. The motor drives the feeding roller 2 to rotate with the help of the reducer. The packaging bag on the feeding roller 2 enters between the two conveying rollers 3. The conveying rollers 3 smooth the packaging bag to avoid wrinkles. Finally, the packaging bag moves to the bottom of the U-shaped frame 4. At this time, the cylinder 5 is turned on. The cylinder 5 drives the cutting blade 6 to move downward. The cutting blade 6 cuts the packaging bag.

[0030] Reference Figure 1-5As shown, the limiting device 7 includes two fixed plates 71, which are respectively fixedly connected to the upper surface of the worktable 1. A sliding plate 72 slides through the surface of the fixed plate 71, and a limiting plate 73 is fixedly connected to one end of the sliding plate 72. An L-shaped plate 74 and a bolt 75 are also included. The L-shaped plate 74 is fixedly connected to the upper surface of the fixed plate 71, and the bolt 75 is threaded into the surface of the L-shaped plate 74. The bolt 75 passes through one end of the L-shaped plate 74 and can compress the sliding plate 72. Before processing the packaging bag, the worker moves the slide plate 72 on the fixing plate 71. The two slide plates 72, along with the two limiting plates 73, move closer to each other. When the distance between the two limiting plates 73 matches the width of the packaging bag, the worker stops moving the slide plate 72 and rotates the bolt 75 on the L-shaped plate 74. The bolt 75 passes through the L-shaped plate 74 and presses the top of the slide plate 72, thus fixing the slide plate 72. When the packaging bag moves between the two limiting plates 73, the two limiting plates 73 limit the packaging bag to prevent it from tilting. The limiting device 7 achieves the effect of limiting the packaging bag to prevent it from tilting, which could lead to unqualified cutting of the packaging bag.

[0031] Reference Figure 1-5 As shown, a handle 79 is fixedly connected to one end of the slide plate 72, and the surface of the handle 79 is provided with anti-slip texture. The handle 79 facilitates the movement of the slide plate 72 by the operator, providing convenience. A groove 76 is provided on the top of the slide plate 72, and several anti-slip strips 77, made of rubber, are fixedly connected to the slide plate 72 via the groove 76. The anti-slip strips 77 in the groove 76 increase the friction between the bolt 75 and the slide plate 72, preventing wobbling between the slide plate 72 and the bolt 75. A scale strip 78 is provided on one side of the slide plate 72. The scale strip 78 facilitates the operator's judgment of the position of the slide plate 72 and the limiting plate 73, providing convenience. A telescopic rod 710 is fixedly connected to the rear side of the limiting plate 73, with one end of the telescopic rod 710 fixedly connected to the fixed plate 71. The telescopic rod 710 restricts the direction of movement of the limiting plate 73, preventing wobbling.

[0032] Reference Figure 1-5As shown, a sealing mechanism 8 is provided on one side of the limiting plate 73. The sealing mechanism 8 includes a base plate 81, which is fixedly connected to one side of the limiting plate 73. A cutting blade 82 is fixedly connected to one side of the limiting plate 73, with the cutting blade 82 located above the base plate 81. A rotating roller 83 is rotatably connected to one side of the limiting plate 73, and a heating wire is installed inside the rotating roller 83. When the packaging bag enters between the two limiting plates 73, the packaging bag enters above the base plate 81. At this time, the cutting blade 82 cuts the rough edges on the side of the packaging bag. As the packaging bag continues to move, the cut side of the packaging bag moves to below the rotating roller 83. At this time, the heating wire inside the rotating roller 83 is turned on, and the heating wire heats the rotating roller 83. The heated rotating roller 83 and the base plate 81 cooperate to perform heat sealing on the side of the packaging bag. The sealing mechanism 8 achieves the effect of cleaning up the waste on both sides of the packaging bag, improving the quality of the packaging bag. A ramp 84 is provided on one side of the base plate 81, which is inclined towards the conveyor roller 3. By setting the ramp 84, the packaging bag is guided, making it easier for the packaging bag to enter the top of the base plate 81.

[0033] Working principle: Before processing the packaging bag, the operator moves the sliding plate 72 on the fixed plate 71 using handle 79. The two sliding plates 72, along with the two limiting plates 73, move closer together. When the distance between the two limiting plates 73 matches the width of the packaging bag, the operator stops moving the sliding plate 72 and rotates the bolt 75 on the L-shaped plate 74. The bolt 75 passes through the L-shaped plate 74 and presses against the anti-slip strip 77 inside the groove 76 on the sliding plate 72, thus fixing the sliding plate 72 in place. When processing the packaging bag is required, the operator first turns on the motor on the support plate. The motor, with the help of a speed reducer... The device drives the feeding roller 2 to rotate, and the packaging bag on the feeding roller 2 enters between the two conveying rollers 3. The conveying rollers 3 smooth the packaging bag to prevent wrinkles. When the packaging bag moves between the two limiting plates 73, the two limiting plates 73 limit the packaging bag to prevent it from tilting. Finally, the packaging bag moves to the bottom of the U-shaped frame 4. At this time, the cylinder 5 is opened, and the cylinder 5 drives the cutting blade 6 to move downward. The cutting blade 6 cuts the packaging bag. The limiting device 7 achieves the effect of limiting the packaging bag to prevent it from tilting, which would result in the packaging bag being cut unqualified.

[0034] When the packaging bag enters between the two limiting plates 73, it passes through the ramp 84 of the base plate 81 and enters the area above the base plate 81. At this time, the cutting blade 82 cuts the rough edges on the side of the packaging bag. As the packaging bag moves continuously, the cut side moves to the bottom of the rotating roller 83. Then, the heating wire inside the rotating roller 83 is turned on, and the heating wire heats the rotating roller 83. The heated rotating roller 83 and the base plate 81 work together to heat seal the side of the packaging bag. The sealing mechanism 8 achieves the effect of cleaning up the waste on both sides of the packaging bag, thus improving the quality of the packaging bag.

Claims

1. A cutting mechanism for a flat-mouth bag making machine, characterized in that: Includes a workbench (1), which is placed on the ground by means of support legs to provide support for the whole; Feeding roller (2), the feeding roller (2) is rotatably connected to the upper surface of the workbench (1) by means of a support plate, wherein a motor is installed on one side of the support plate, and the motor can drive the feeding roller (2) to rotate by means of a reducer; Conveyor rollers (3), two conveyor rollers (3) are rotatably connected to the upper surface of the workbench (1) by means of a bracket, wherein the packaging bag can pass through the gap between the two conveyor rollers (3); U-shaped frame (4), the U-shaped frame (4) is installed on the upper surface of the workbench (1), the surface of the U-shaped frame (4) is fixedly connected to a cylinder (5), and the output end of the cylinder (5) is fixedly connected to a cutting blade (6); A limiting device (7) is provided on the upper surface of the workbench (1). The limiting device (7) is located between the conveyor roller (3) and the cutting blade (6). The limiting device (7) can limit the packaging bag.

2. The cutting mechanism of the flat-mouth bag making machine according to claim 1, characterized in that: The limiting device (7) includes two fixing plates (71), which are respectively fixedly connected to the upper surface of the workbench (1). A sliding plate (72) slides through the surface of the fixing plate (71), and a limiting plate (73) is fixedly connected to one end of the sliding plate (72). L-shaped plate (74) and bolt (75), the L-shaped plate (74) being fixedly connected to the upper surface of the fixed plate (71), the bolt (75) being threaded into the surface of the L-shaped plate (74), wherein the bolt (75) passing through one end of the L-shaped plate (74) can compress the slide plate (72).

3. The cutting mechanism of the flat-mouth bag making machine according to claim 2, characterized in that: One end of the skateboard (72) is fixedly connected to a handle (79), and the surface of the handle (79) is provided with anti-slip texture.

4. The cutting mechanism of the flat-mouth bag making machine according to claim 2, characterized in that: The top of the slide plate (72) is provided with a groove (76), and the slide plate (72) is fixedly connected with a number of anti-slip strips (77) by means of the groove (76), wherein the anti-slip strips (77) are made of rubber.

5. The cutting mechanism of the flat-mouth bag making machine according to claim 2, characterized in that: The skateboard (72) has a scale strip (78) on one side.

6. The cutting mechanism of the flat-mouth bag making machine according to claim 2, characterized in that: A telescopic rod (710) is fixedly connected to the rear side of the limiting plate (73), wherein one end of the telescopic rod (710) is fixedly connected to the fixing plate (71).

7. The cutting mechanism of the flat-mouth bag making machine according to claim 2, characterized in that: The limiting plate (73) has an edge sealing mechanism (8) on one side. The edge sealing mechanism (8) includes a base plate (81). The base plate (81) is fixedly connected to one side of the limiting plate (73). An edge trimming knife (82) is fixedly connected to one side of the limiting plate (73), wherein the edge trimming knife (82) is located above the base plate (81). A rotating roller (83) is rotatably connected to one side of a limiting plate (73), wherein a heating wire is provided inside the rotating roller (83).

8. The cutting mechanism of the flat-mouth bag making machine according to claim 7, characterized in that: A ramp (84) is provided on one side of the base plate (81), wherein the ramp (84) is inclined toward the direction of the conveyor roller (3).

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