An automatic packaging machine for material rolls

Abstract

This invention relates to an automatic packaging machine for material rolls, addressing the problems of existing large material roll packaging methods that often rely on rotary robotic arms, resulting in repetitive winding and compromised packaging tightness. The machine frame is equipped with a feeding roller conveyor, a packaging platform, and a material rack. Two rollers are arranged side-by-side at the top of the packaging platform, with the material roll resting between them. Above the feeding roller conveyor is a top platform, with a film roll and packaging film feeding roller positioned on its sides. A cutter is located behind the feeding roller. A discharge roller is located on the side of the top platform facing the packaging platform, with a glue gun behind it. Swing arms are positioned on both sides below the rear of the glue gun, with a pressure roller between the ends of the two swing arms. Below the pressure roller is a negative pressure suction rod with evenly distributed negative pressure suction ports. This invention allows for accurate and quantitative control of the packaging film usage, resulting in tight and reliable packaging that is less prone to unraveling; it is suitable for packaging material rolls of different sizes.

Description

Technical Field

[0001] This invention belongs to the field of packaging equipment and relates to an automatic packaging machine for material rolls. Background Technology

[0002] Some paper core film rolls made of materials such as PE and PP require packaging before storage and transportation. These rolls are wrapped with bubble wrap or other compression-resistant packaging films to prevent damage during storage and transport. These film rolls are heavy, and traditional packaging methods typically use robotic arms to rotate the packaging film around the roll. This method usually involves using a strip-shaped film that needs to be repeatedly wound, resulting in material waste. Furthermore, the packaging film used in these rotating packaging machines generally needs to be adhesive to ensure tight wrapping; non-adhesive materials often result in insufficient sealing. Summary of the Invention

[0003] The purpose of this invention is to solve the problems that existing large-scale material roll packaging often uses rotary robotic arms, which results in repeated winding and defects in packaging tightness. The invention provides an automatic material roll packaging machine that uses a whole sheet of packaging film cut and tightly attached to the material roll to complete the packaging, resulting in good packaging effect and controllable and economical use of packaging materials.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an automatic packaging machine for material rolls, including a frame, on which, from front to back, are arranged a feeding roller conveyor for conveying material rolls, a packaging platform for packaging material rolls, and a material rack for placing packaged material rolls. Two rollers are arranged side by side on the top of the packaging platform, and the material rolls are placed above the space between the two rollers. At least one of the rollers is a drive roller. Above the feeding roller conveyor is a top platform for feeding packaging film. A film roll for packaging film is arranged on the side of the top platform. A feeding roller is arranged on the side of the top platform facing the film roll. With the packaging film conveying direction from front to back, a cutting blade is arranged on the rear side of the feeding roller. A discharge roller is arranged on the side of the top platform facing the packaging platform. A glue gun is arranged on the rear side of the discharge roller. Swing arms are arranged on both sides below the rear side of the glue gun. A pressure roller is arranged between the ends of the two swing arms. A negative pressure suction rod is arranged between the swing arms below the pressure roller. Negative pressure suction ports are evenly arranged on the negative pressure suction rod.

[0005] In this device, after the material roll is fed to the packaging platform, it is placed between two rollers and can be rotated by the rollers. One packaging method of this device is exemplified as follows: The packaging film is quantitatively fed by the feeding roller according to the size of the material roll, and then cut by the cutter. The output roller then clamps the packaging film and outputs it. The output end of the packaging film stops at the glue gun, and glue is applied by the glue gun before the output continues until the output end of the packaging film hangs downward. At this time, the swing arm is at its uppermost position. The negative pressure suction rod between the swing arms attracts the output end of the packaging film, and then the swing arm swings downward, causing the pressure roller to press the output end of the packaging film onto the material roll and glue it in place. When the material roll rotates, it winds the packaging film around the surface until the output end of the packaging film reaches the glue gun position. Glue is applied to the output end of the packaging film with the glue gun, so that the end of the packaging film can be glued in place after the material roll is wound around the packaging film. During the winding process, the pressure roller presses the packaging film to ensure that the packaging film is tightly wrapped. After the packaging film is wound, the swing arm swings upward to return to its original position. After sealing both ends with sun paper, the roll is pushed onto the material rack. This device can quantitatively cut packaging film according to rolls of different sizes, saving packaging film material. During the packaging process, the packaging film and the roll are tightly adhered throughout, and adhesive is applied to both ends of the packaging film for fixation, ensuring a tight and reliable package that is not easily unraveled. This device is suitable for rolls of various sizes and materials, such as PE and PP rolls, as well as packaging films of various materials, such as bubble wrap.

[0006] Preferably, the feed roller and the discharge roller are both paired rollers, with the lower roller being the drive roller and the upper roller being a movable roller that can swing up and down.

[0007] Preferably, the feed roller and the discharge roller are arranged on adjacent or opposite sides of the top platform.

[0008] Preferably, the packaging platform is equipped with a horizontal screw at its bottom for adjusting its horizontal position, and a lifting electric cylinder at its lower part for adjusting its height. The packaging platform can be adjusted forward and backward, and up and down according to the size of the material roll, ensuring that the pressure roller on the swing arm can properly press the packaging film onto the surface of the material roll, while also aligning the material roll with the core of the sun paper packaging structure.

[0009] Preferably, a liftable jacking block is provided below the two rollers of the packaging platform. The top surface of the jacking block is inclined towards the material rack, and a jacking cylinder is provided below the jacking block. Guide plates are provided on the outer sides of the two rollers, and an angle adjustment cylinder is provided between the guide plates and the packaging platform. The lifting block allows the material roll to roll onto the material rack by its own weight after packaging.

[0010] Preferably, the packaging platform is symmetrically equipped with sun paper packaging mechanisms on both sides, and sun paper racks are symmetrically equipped on both sides of the material rack. Each sun paper rack has several sun paper feeding stations. A feeding gripper is located between the sun paper rack and the sun paper packaging mechanism. The sun paper rack is equipped with a translation-lifting mechanism, and the feeding gripper is mounted on the translation-lifting mechanism. The sun paper packaging mechanism is existing technology and can use commercially available winding packaging machines. It is important to note that the tape in this device's sun paper packaging mechanism does not revolve around a central axis; instead, it utilizes the rotation of the material roll to complete the tape winding. The feeding gripper extends towards the sun paper packaging mechanism, ensuring that when the translation-lifting mechanism is moved to its outermost position, the feeding gripper can deliver the sun paper to the fixed position within the sun paper packaging mechanism.

[0011] Preferably, sun sheets of the same size are hung at the same sun sheet feeding station; sun sheets of the same size are hung at sun sheet feeding stations aligned on the left and right sun sheet racks; sun sheets of the same or different sizes are hung at different sun sheet feeding stations on the same sun sheet rack. Different sun sheet feeding stations can hang sun sheets of different sizes and specifications. When the material roll size is uniform, sun sheets of the same size can also be hung to extend the working interval of feeding.

[0012] Preferably, the solar paper packaging mechanism includes a telescopic rod for positioning the solar paper, a tape holder surrounding the telescopic rod, the tape holder extending and retracting synchronously with the telescopic rod, and a cutter provided on the side of the tape holder.

[0013] Preferably, the material roll is conveyed at a 90-degree angle between the feeding roller conveyor and the packaging platform. The feeding roller conveyor has a feeding push rod on one side at the rear end and a packaging platform and a material rack on the other side.

[0014] Preferably, the feed roller conveyor is a V-shaped roller conveyor with inclined conveyor rollers symmetrically arranged on both sides.

[0015] Preferably, a maintenance staircase is also provided on one side of the top platform.

[0016] This invention can quantitatively cut and use packaging film according to material rolls of different sizes, saving packaging film materials. During the packaging process, the packaging film and material roll are tightly attached throughout and glued at both ends of the packaging film for fixation, resulting in tight and reliable packaging that is not easy to fall apart. This device has a high degree of automation and can be applied to packaging material rolls of different sizes. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a top view structural diagram of the present invention.

[0019] Figure 2This is a side view structural diagram of the present invention.

[0020] Figure 3 This is the present invention. Figure 2 Schematic diagram of the structure at point A in the middle.

[0021] Figure 4 This is the present invention. Figure 2 Cross-sectional view of the packaging platform.

[0022] In the diagram: 1. Feed roller conveyor, 2. Film roll, 3. Feeding roller, 4. Cutting knife, 5. Top platform, 6. Guide pressure rod, 7. Maintenance stairs, 8. Packaging platform, 9. Sun paper packaging mechanism, 10. Material roll, 11. Material rack, 12. Sun paper rack, 13. Sun paper feeding station, 14. Feeding gripper, 15. Translation-lifting mechanism, 16. Feed push rod, 17. Lower discharge roller, 18. Upper discharge roller, 19. Dispensing machine, 20. Guide arc surface, 21. Swing arm, 22. Pressure roller, 23. Negative pressure adsorption rod, 24. Swing cylinder, 25. Horizontal lead screw, 26. Lifting electric cylinder, 27. Lifting block, 28. Lifting cylinder, 29. Guide plate, 30. Inclined angle adjustment cylinder, 31. Roller. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0024] Example: An automatic packaging machine for material rolls, such as Figure 1 , 2 As shown. This device includes a frame, on which, from front to back, are arranged a feeding roller conveyor 1 for conveying material rolls, a packaging platform 8 for packaging material rolls, and a rack 11 for placing packaged material rolls. The feeding roller conveyor 1 is a V-shaped roller conveyor with inclined conveying rollers symmetrically arranged on both sides. The material rolls 10 are conveyed at a 90-degree turn between the feeding roller conveyor 1 and the packaging platform 8. A feeding pusher 16 is provided on one side of the rear end of the feeding roller conveyor 1, and the packaging platform 8 and the rack 11 are arranged sequentially on the other side.

[0025] like Figure 4 As shown, the packaging platform 8 has two rollers 31 arranged side by side on its top, with the material roll 10 mounted above the space between the two rollers 31. At least one roller 31 is a drive roller. A liftable lifting block 27 is located below the space between the two rollers of the packaging platform 8. The top surface of the lifting block is inclined towards the material rack 11, and a lifting cylinder 28 is located below the lifting block. Guide plates 29 are located on the outer sides of the two rollers, and an angle adjustment cylinder 30 is located between the guide plates and the packaging platform. A horizontal screw 25 is located at the bottom of the packaging platform 8 to adjust its horizontal position, and a lifting electric cylinder 26 is located at the lower part of the packaging platform to adjust its height.

[0026] like Figure 1 ,3 As shown, a top platform 5 for feeding packaging film is provided above the feeding roller conveyor 1. A film roll 2 for packaging film is located on the side of the top platform 5. A feeding roller 3 is located on the side of the top platform facing the film roll. A cutting blade 4 is located on the rear side of the feeding roller, with the packaging film conveying direction from front to back. An output roller is located on the side of the top platform facing the packaging platform. Both the feeding roller and the output roller are opposite rollers. Taking the output roller as an example, the lower output roller 17 is a drive roller, and the upper output roller 18 is a movable roller that can swing up and down. The feeding roller and the output roller are located on adjacent sides of the top platform 5. Several guide rods 6 are provided on the top platform along the feeding direction to ensure that the packaging film is fed flat. If necessary, sliding traction blocks can be installed on the guide rods 6. A glue gun 19 is located behind the discharge roller. A guide arc surface 20 is located below the rear of the glue gun. Swing arms 21 are located on both sides below the guide arc surface 20. The swing arms are controlled by a swing cylinder 24 mounted on the frame. A pressure roller 22 is located between the ends of the two swing arms 21. A negative pressure suction rod 23 is located between the swing arms below the pressure roller. Negative pressure suction ports are evenly distributed on the negative pressure suction rod. The swing arms 21 can swing upward to a vertical position. After adsorbing the packaging film, the swing arms can swing downward to adhere to the surface of the material roll.

[0027] like Figure 1 , 2 As shown in Figure 4, symmetrical sun paper packaging mechanisms 9 are provided on both sides of the packaging platform 8, which can be used to seal the end face of the material roll. Sun paper racks 12 are symmetrically arranged on both sides of the material rack 11, each with several sun paper loading stations 13. A loading gripper 14 is provided between the sun paper rack and the sun paper packaging mechanism. A translation-lifting mechanism 15 is provided on the sun paper rack, and the loading gripper is mounted on the translation-lifting mechanism and extends outwards from the sun paper packaging mechanism 9. Sun paper of the same size is hung at the same sun paper loading station 14; sun paper of the same size is hung at sun paper loading stations aligned on the left and right sun paper racks; sun paper of the same or different sizes is hung at different sun paper loading stations on the same sun paper rack. In this example, the sun paper at all sun paper loading stations 14 is of the same size and is used to package material rolls of the same size. The sun paper packaging mechanism 9 employs a conventional winding and packaging device, including a telescopic rod for positioning the sun paper, a tape holder surrounding the telescopic rod, and the tape holder extending and retracting synchronously with the telescopic rod. A cutter is located on the side of the tape holder. After the sun paper is fed onto the telescopic rod, it extends and abuts against the roll of material. Simultaneously, the tape holder extends and presses the tape against the circumference of the end of the roll, utilizing the rotation of the roll to complete the tape winding. This device first winds the packaging film and then secures the sun paper.

[0028] After the material roll is fed to the packaging platform, it is placed between two rollers and can be rotated by the rollers. One packaging method of this device is as follows: The packaging film is quantitatively fed by the feeding roller according to the size of the material roll, and then cut by the cutter. Then the discharge roller clamps the packaging film and discharges it. The rear end of the packaging film is discharged first and stops at the glue gun. After glue is applied by the glue gun, the discharge continues until the rear end of the packaging film hangs downward. At this time, the swing arm is in the uppermost position. The negative pressure suction rod between the swing arms attracts the rear end of the packaging film. Then the swing arm swings downward, causing the pressure roller to press the rear end of the packaging film onto the material roll and glue it in place. When the material roll rotates, it winds the packaging film around the surface until the front end of the packaging film reaches the glue gun position. Glue is applied to the front end of the packaging film with the glue gun so that the end of the packaging film can be glued in place after the material roll is wound around the packaging film. During the winding process, the pressure roller presses the packaging film to ensure that the packaging film is tightly wrapped. After the packaging film is wound, the swing arm swings upward to return to its original position. After completing the sealing and packaging of both ends of the sun paper, the roll is pushed onto the material rack.

Claims

1. A bale automatic packer comprising a frame, characterized in that: The frame is provided with a feeding roller conveyor for conveying material rolls, a packaging platform for packaging material rolls, and a rack for placing packaged material rolls from front to back. Two rollers are arranged side by side on the top of the packaging platform, and the material rolls are placed above the two rollers. At least one of the rollers is a drive roller. A top platform for feeding packaging film is provided above the feeding roller conveyor. A film roll for packaging film is provided on the side of the top platform. A feeding roller is provided on the side of the top platform facing the film roll. A cutting blade is provided on the rear side of the feeding roller, with the packaging film conveying direction from front to back. A discharge roller is provided on the side of the top platform facing the packaging platform. A glue gun is provided on the rear side of the discharge roller. Swing arms are provided on both sides below the rear side of the glue gun. A pressure roller is provided between the ends of the two swing arms. A negative pressure suction rod is provided between the swing arms below the pressure roller. Negative pressure suction ports are evenly distributed on the negative pressure suction rod. The packaging film is quantitatively fed by the feeding roller according to the size of the roll, then cut by the cutter. The output roller then clamps the packaging film and ejects it. The rear end of the packaging film is ejected first and then pauses at the glue gun. After the glue gun is used to apply glue, the film continues to be ejected until the rear end of the packaging film hangs downwards. At this point, the swing arm is at its uppermost position. The negative pressure suction rod between the swing arms attracts the rear end of the packaging film. Then, the swing arm swings downwards, causing the pressure roller to press the rear end of the packaging film onto the roll and glue it in place. As the roll rotates, the packaging film is wound around the surface until the front end of the packaging film reaches the glue gun position. The glue gun is used to apply glue to the front end of the packaging film so that the end of the packaging film can be glued in place after the roll is wound around the packaging film. During the winding process, the pressure roller presses the packaging film tightly to ensure that the packaging film is tightly wrapped. After the packaging film is wound, the swing arm swings upwards to return to its original position.

2. The automatic packaging machine for material rolls according to claim 1, characterized in that: Both the feeding roller and the discharging roller are paired rollers, with the lower roller being the driving roller and the upper roller being a movable roller that can swing up and down.

3. An automatic packaging machine for material rolls according to claim 1 or 2, characterized in that: The feeding roller and the discharging roller are arranged on adjacent or opposite sides of the top platform.

4. The automatic packaging machine for material rolls according to claim 1, characterized in that: The bottom of the packaging platform is equipped with a horizontal lead screw to adjust the horizontal position of the packaging platform, and the lower part of the packaging platform is equipped with a lifting electric cylinder to adjust the height of the packaging platform.

5. The automatic packaging machine for material rolls according to claim 1, characterized in that: A liftable jacking block is provided below the two rollers of the packaging platform. The top surface of the jacking block is inclined towards the material rack. A jacking cylinder is provided below the jacking block. Guide plates are provided on the outer sides of the two rollers respectively. An angle adjustment cylinder is provided between the guide plates and the packaging platform.

6. An automatic packaging machine for material rolls according to claim 1, 2, 4, or 5, characterized in that: The packaging platform is symmetrically equipped with sun paper packaging mechanisms on both sides, and sun paper racks are symmetrically equipped on both sides of the material rack. Several sun paper feeding stations are provided on the sun paper racks. A feeding gripping robot is provided between the sun paper racks and the sun paper packaging mechanisms. A translation-lifting mechanism is provided on the sun paper racks, and the feeding gripping robot is mounted on the translation-lifting mechanism.

7. An automatic packaging machine for material rolls according to claim 6, characterized in that: Sunpaper of the same size is hung at the same sunpaper feeding station; sunpaper of the same size is hung at sunpaper feeding stations aligned on the left and right sunpaper racks; sunpaper of the same or different sizes is hung at different sunpaper feeding stations on the same sunpaper rack.

8. An automatic packaging machine for material rolls according to claim 6, characterized in that: The sun paper packaging mechanism includes a telescopic rod for positioning the sun paper, a tape holder surrounding the telescopic rod, the tape holder extending and retracting synchronously with the telescopic rod, and a cutter located on the side of the tape holder.

9. An automatic packaging machine for material rolls according to claim 1, 2, 4, or 5, characterized in that: The material roll is conveyed at a 90-degree turn between the feeding roller conveyor and the packaging platform. The feeding roller conveyor has a feeding push rod on one side at the rear end and a packaging platform and a material rack on the other side.

10. An automatic packaging machine for material rolls according to claim 1, 2, 4, or 5, characterized in that: The feed roller conveyor is a V-shaped roller conveyor with inclined conveyor rollers symmetrically arranged on both sides.

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