A rotating structure for a horizontal wrapping machine

Abstract

This invention discloses a rotating ring structure for a horizontal wrapping machine, including a mounting plate. A rotating ring and several driven rollers are provided on one side of the mounting plate. The driven rollers are rotatably connected to the mounting plate, and the rotating ring is surrounded by the driven rollers. The outer circumferential surface of the rotating ring mates with the circumferential surfaces of the driven rollers. The rotating ring is cut from an iron plate using a laser cutting machine, resulting in a rough outer circumferential surface and a smooth side surface. The mounting plate also has an active roller assembly on the side with the rotating ring. The active roller assembly includes a friction wheel and a motor. The motor is fixedly connected to the mounting plate, and the friction wheel is rotatably connected to the mounting plate. The motor drives the friction wheel to rotate, and continuous compression occurs between the circumferential surface of the friction wheel and the outer circumferential surface of the rotating ring. This invention solves many technical problems of existing horizontal wrapping machines.

Description

Technical Field

[0001] This invention relates to the field of automatic packaging technology, and in particular to a rotating structure for a horizontal wrapping machine. Background Technology

[0002] Horizontal stretch wrapping machines are devices that use a rotating arm system to rotate around goods that are moving horizontally at a constant speed, while simultaneously adjusting the tension of the packaging material through a stretching mechanism. This results in a tight, spiral-shaped wrapping pattern on the surface of the object. They are widely used in industries such as plastic profiles, aluminum materials, sheets, pipes, and textiles. Specific applications include high-end flooring, aluminum alloys, wood strips, and PVC profiles, as well as rod-shaped, sheet-shaped, and strip-shaped products.

[0003] like Figures 1-4 As shown, the rotating ring 1 of the current horizontal wrapping machine is mounted on the side of the mounting plate 8 via several driven rollers 3. The side of the mounting plate 8 is also equipped with a motor 5. The outer circumferential surface of the rotating ring 1 is provided with an annular groove 12. The motor 5 drives the rotating ring 1 to rotate through the cooperation of the belt 4 and the annular groove 12. The side of the rotating ring 1 is equipped with a film roller assembly 2 and a counterweight 6. The film roller assembly 2 and the counterweight 6 are arranged opposite to each other. The film roller assembly 2 needs to be installed with mounting holes 11, and the counterweight 6 also needs to be installed with mounting holes 11.

[0004] The existing swivel ring 1 is made by casting pure aluminum and then machining it. This method has the following technical problems:

[0005] 1) The material cost of rotating ring 1 is relatively high;

[0006] 2) The swivel ring 1 is prone to casting defects, commonly known as "bubbling". On the one hand, it affects the appearance, and on the other hand, too much bubbling will affect the installation of the counterweight 6. Once the counterweight 6 is installed at the bubbling area, it will cause the counterweight 6 to be unable to fit against the side of the swivel ring 1, reducing the installation firmness of the counterweight 6. Once the counterweight 6 rotates at high speed with the swivel ring 1, there is a great safety hazard.

[0007] 3) In order to ensure the physical strength of the swivel ring 1, the cast swivel ring 1 must have sufficient thickness, usually 60-80mm. Sufficient thickness will inevitably lead to a heavier weight. A heavier swivel ring 1 will, on the one hand, require a higher power of motor 2 5, increasing production costs, and on the other hand, will accelerate the damage of driven roller 3, increasing maintenance costs.

[0008] 4) The final forming of the rotating ring 1 requires the following process: the supplier purchases aluminum materials for blank casting, and after receiving the blank, the company finds an external unit to process the annular groove 12. The cycle is relatively long, about 20 days, and the time cost is high. Of course, the company can also carry out blank casting and annular groove 12 processing itself, but most packaging machine manufacturers do not have the relevant processing equipment and personnel, and the cost is even higher. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a rotating ring structure for a horizontal wrapping machine. The raw material of this invention is iron plate, resulting in lower costs. Using iron plate as the raw material results in a relatively flat side surface of the rotating ring, which is not only aesthetically pleasing but also ensures the secure installation of the counterweight, minimizing safety hazards. By using iron plate as the raw material, a rotating ring thickness of only 20mm is sufficient to ensure adequate physical strength, reducing the power requirements of the motor, lowering production costs, reducing damage to the driven roller, and lowering maintenance costs. Furthermore, the casting process is eliminated, as it can be completed using the company's own laser cutting machine, significantly reducing costs. While laser cutting machines are relatively expensive, they are commonly used in the packaging industry and are a typical example of multi-functional equipment, significantly reducing production costs. The elimination of the annular groove processing, through the cooperation of the friction wheel and the rotating ring, allows the motor to drive the friction wheel to rotate, greatly saving time. The laser cutting machines used in the packaging industry generally have a power of around 3kW or even lower. Low power, unstable movement, vibration, and long service life can all cause wavy patterns on the cut surface. These wavy patterns can precisely cooperate with the friction wheel to drive the rotating ring.

[0010] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0011] A rotating ring structure for a horizontal wrapping machine includes a mounting plate. A rotating ring and several driven rollers are provided on the same side of the mounting plate. The driven rollers are rotatably connected to the mounting plate. The rotating ring is surrounded by the driven rollers, and the outer circumferential surface of the rotating ring mates with the circumferential surfaces of the driven rollers. The rotating ring is cut from an iron plate using a laser cutting machine. The outer circumferential surface of the rotating ring is rough, while the side surface of the rotating ring is smooth. The mounting plate also has an active roller assembly on the side with the rotating ring. The active roller assembly includes a friction wheel and a motor. The motor is fixedly connected to the mounting plate, and the friction wheel is rotatably connected to the mounting plate. The motor drives the friction wheel to rotate, and continuous compression occurs between the circumferential surface of the friction wheel and the outer circumferential surface of the rotating ring.

[0012] Furthermore, the active roller assembly also includes an active sprocket and a driven sprocket. The active sprocket is connected to a motor, the central axis of the driven sprocket coincides with the central axis of the friction wheel, the driven sprocket and the friction wheel are fixedly connected, and the active sprocket and the driven sprocket are connected by a chain.

[0013] Furthermore, the number of active support roller assemblies is two, with the two friction rollers located on the lower side of the rotating ring and on opposite sides of the rotating ring.

[0014] Furthermore, several driven rollers are evenly arranged on the outer periphery of the rotating ring, and the radial positions of the two friction wheels relative to the rotating ring can be adjusted.

[0015] Furthermore, the rotating ring includes two iron rings, the sides of the two iron rings are fitted together, the inner circumferential surfaces and outer circumferential surfaces of the two iron rings are respectively punched together, the two iron rings are respectively a first iron ring and a second iron ring, and the first iron ring and the second iron ring are fixedly connected.

[0016] Furthermore, the driven roller includes a driven roller body, and annular retaining rings are respectively provided at opposite ends along its axial direction on the driven roller body. The outer circumferential surface of the rotating ring cooperates with the circumferential surfaces of several driven roller bodies.

[0017] The beneficial effects of this invention are:

[0018] 1) The raw material for this invention is iron plate, which has a low cost;

[0019] 2) Using iron plates as raw materials, the sides of the swivel are relatively flat, which is not only aesthetically pleasing, but also ensures the firmness of the counterweight installation and reduces safety hazards.

[0020] 3) After using iron plate as the raw material, the thickness of the swivel ring is only 20mm, which can ensure sufficient physical strength. The power requirement of the motor is lower, the production cost is reduced, the damage to the driven roller is reduced, and the maintenance cost is reduced.

[0021] 4) The casting process has been eliminated, as it can be completed using our own laser cutting machine, greatly saving time and costs. Although the price of laser cutting machines is relatively high, they are commonly used equipment in the packaging machine industry. For example, the counterweights, air shaft fixing plates, guide columns, and tension wheel brackets of horizontal wrapping machines; the turntables and chassis motor plates of pallet wrapping machines; the bearing baffles, connecting plates, and film carriage brackets of luggage wrapping machines; the counterweights, mounting plates, main motor plates, main shaft motor plates, motor mounting plates, column fixing plates, and carriages of rocker arm wrapping machines; and the pallets, idler rollers, turntable motor seats, idler roller motor seats, and idler roller motor mounting plates of cylindrical wrapping machines. The turntables of online wrapping machines are also cut using laser cutting machines. This is a typical example of a machine that can be used for multiple purposes, greatly reducing production costs.

[0022] 5) The machining of the annular groove has been eliminated. Through the cooperation of the friction wheel and the rotating ring, the motor can drive the friction wheel to rotate, which greatly saves time and costs.

[0023] 6) The power of laser cutting machines used in the packaging machine industry is generally around 3kw or even lower. Low power, unstable movement, vibration, and long service life of laser cutting machines may cause wavy patterns on the cutting surface. The wavy patterns can work with the friction wheel to drive the rotating ring to rotate. Attached Figure Description

[0024] Appendix Figure 1 This is the front view of the transfer ring in the existing technology;

[0025] Appendix Figure 2 It is attached Figure 1 Sectional view along line AA;

[0026] Appendix Figure 3 It is attached Figure 2 A magnified view of a section at point B in the middle;

[0027] Appendix Figure 4 This is a schematic diagram of the connection between the transfer ring, film roller assembly, driven support roller, motor 2 and belt in the existing technology;

[0028] Appendix Figure 5 This is a schematic diagram of the rotating structure for a horizontal wrapping machine according to the present invention;

[0029] Appendix Figure 6 This is a schematic diagram of the rotating ring structure in a horizontal winding packaging machine according to the present invention;

[0030] Appendix Figure 7 It is attached Figure 6 A partial sectional view along the CC direction;

[0031] Appendix Figure 8 This is a top view of the active support roller assembly in the rotating structure of a horizontal wrapping machine according to the present invention;

[0032] Appendix Figure 9 This is a front sectional view of the active support roller assembly in the rotating structure of a horizontal wrapping machine according to the present invention.

[0033] In the diagram: 1. Rotary ring; 11. Mounting hole; 12. Annular groove; 13. First iron ring; 14. Second iron ring; 15. Pin hole; 16. Fixing pin; 2. Film roller assembly; 3. Driven roller; 4. Belt; 5. Motor II; 6. Counterweight; 7. Driven roller assembly; 71. Base; 72. Driven sprocket; 73. Friction wheel; 74. Mounting shaft; 75. Limiting block; 76. Locking bolt; 77. Adjusting bolt; 78. Motor I; 79. Chain; 710. Slide groove hole; 8. Mounting plate. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-9 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] This invention provides a rotating structure for a horizontal winding packaging machine.

[0037] A rotating ring structure for a horizontal wrapping machine includes a mounting plate 8. A rotating ring 1 and several driven rollers 3 are provided on the same side of the mounting plate 8. The driven rollers 3 are rotatably connected to the mounting plate 8. The rotating ring 1 is surrounded by the driven rollers 3. The outer circumferential surface of the rotating ring 1 mates with the circumferential surfaces of the driven rollers 3. The rotating ring 1 is cut from an iron plate by a laser cutting machine. The outer circumferential surface of the rotating ring 1 is rough, while the side surface of the rotating ring is smooth. The mounting plate 8 also has an active roller assembly 7 on the side where the rotating ring 1 is located. The active roller assembly 7 includes a friction wheel 73 and a motor 78. The motor 78 is fixedly connected to the mounting plate 8, and the friction wheel 73 is rotatably connected to the mounting plate 8. The motor 78 drives the friction wheel 73 to rotate, and the circumferential surface of the friction wheel 73 and the outer circumferential surface of the rotating ring 1 are continuously squeezed together.

[0038] In the technical solution proposed in this application, the raw material of the present invention is iron plate, which has a low cost. Using iron plate as the raw material results in a relatively flat side surface of the swivel ring 1, which is not only aesthetically pleasing but also ensures the secure installation of the counterweight 6, minimizing safety hazards. With iron plate as the raw material, the thickness of the swivel ring 1 is only 20mm to ensure sufficient physical strength, reducing the power requirement of the motor 78, lowering production costs, reducing damage to the driven roller 3, and lowering maintenance costs. The casting process is eliminated, as it can be completed using the company's own laser cutting machine, greatly saving time. Although laser cutting machines are relatively expensive, they are commonly used equipment in the packaging machine industry, for example, in the counterweights, air shaft fixing plates, guide plates, and tension wheel brackets of horizontal wrapping machines; the turntable and chassis motor plate of pallet wrapping machines; and the shafts of luggage wrapping machines. The support plate, connecting plate, film carriage support, counterweight, mounting plate, main motor plate, main shaft motor plate, motor mounting plate, column fixing plate, and slide of the rocker arm winding machine, and the pallet, idler roller arm, turntable motor seat, idler roller motor seat, and idler roller motor mounting plate of the cylindrical winding machine, as well as the turntable of the online winding machine, are all cut using a laser cutting machine. This is a typical example of multi-purpose machine, which greatly reduces production costs. The processing of the annular groove 12 has been eliminated. Through the cooperation of the friction wheel 73 and the rotating ring 1, the motor 78 drives the friction wheel 73 to rotate, which in turn drives the rotating ring 1 to rotate, greatly saving time costs. The power of the laser cutting machines used in the packaging machine industry is generally around 3kw or even lower. The low power, unstable movement, vibration, and long service life of the laser cutting machine may cause wavy patterns on the cut surface. The wavy patterns can be used to cooperate with the friction wheel 73 to drive the rotating ring 1 to rotate.

[0039] The active roller assembly 7 also includes an active sprocket (not shown) and a driven sprocket 72. The active sprocket is connected to a motor 78. The central axis of the driven sprocket 72 coincides with the central axis of the friction wheel 73. The driven sprocket 72 and the friction wheel 73 are fixedly connected. The active sprocket and the driven sprocket 72 are connected by a chain 79. In a specific embodiment, the active roller assembly 7 also includes a mounting shaft 74. The driven sprocket 72 and the friction wheel 73 are rotatably connected to the mounting shaft 74. The driven sprocket 72 and the friction wheel 73 are fixedly connected by bolts. The motor 78 controls the rotation of the active sprocket, which drives the driven sprocket 72 to rotate via the chain 79. The driven sprocket 72 drives the friction wheel 73 to rotate. In other embodiments, the active sprocket, the driven sprocket 72, and the chain 79 can be replaced by an active pulley, a driven pulley, and a transmission belt, respectively.

[0040] There are two active support roller assemblies 7, with two friction wheels 73 located on the lower side of the rotating ring 1, on opposite sides of the rotating ring 1. Each friction wheel 73 is driven by a corresponding motor 78 to cooperate with the rotating ring 1, enabling the rotating ring 1 to rotate more effectively. The reason the two friction wheels 73 are located on the lower side of the rotating ring 1 is to increase the friction between the rotating ring 1 and the friction wheels 73 through the weight of the rotating ring 1 itself.

[0041] Several driven rollers 3 are evenly arranged on the outer circumference of the rotating ring 1, and the radial positions of the two friction wheels 73 relative to the rotating ring 1 are adjustable. In a specific embodiment, a certain gap is left between the rotating ring 1 and the driven rollers 3. The adjustable radial positions of the two friction wheels 73 relative to the rotating ring 1 are to ensure that the weight of the rotating ring 1 is borne by the two friction wheels 73. This increases the friction between the rotating ring 1 and the friction wheels 73, and prevents the driven rollers 3 at the bottom from bearing the weight of the rotating ring 1, thus extending the service life of the driven rollers 3.

[0042] The active support roller assembly 7 also includes a base 71. The bottom end of the mounting shaft 74 is fixedly connected to the base 71. The base 71 has sliding groove holes 710 on opposite sides. Locking bolts 76 pass through the sliding groove holes 710 and are fixedly connected to the mounting plate 8. The mounting plate 8 has two limiting blocks 75. The base 71 is located between the rotating ring 1 and the two limiting blocks 75. Adjusting bolts 77 are screwed onto the two limiting blocks 75. The two adjusting bolts 77 are respectively engaged with the opposite ends of the side of the base 71 away from the rotating ring 1. With the above structure, only the two adjusting bolts 77 need to be operated. After the operation is completed, the locking bolts 76 are tightened to adjust the position of the friction wheel 73.

[0043] The swivel ring 1 comprises two iron rings, whose sides are fitted together. The inner and outer circumferential surfaces of the two iron rings are flush. The two iron rings are designated as a first iron ring 13 and a second iron ring 14, and are fixedly connected. In a specific embodiment, the thickness of the swivel ring 1 is 20mm, while packaging machine manufacturers commonly use 10mm iron plates. Therefore, processing the swivel ring 1 by stacking two iron rings results in lower costs. Pin holes 15 can be made in the iron rings, and then the two iron rings can be fixedly connected together using fixing pins 16.

[0044] The driven roller 3 includes a driven roller body (not shown), and annular retaining rings (not shown) are respectively provided at opposite ends along its axial direction on the driven roller body (not shown). The outer circumferential surface of the rotating ring 1 mates with the circumferential surfaces of several driven roller bodies 3. The annular retaining rings provide protection for the rotating ring 1.

[0045] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. A rotating structure for a horizontal wrapping machine, characterized in that, The device includes a mounting plate, on the same side of which is provided a rotating ring and several driven rollers. The driven rollers are rotatably connected to the mounting plate. The rotating ring is surrounded by the driven rollers. The outer circumferential surface of the rotating ring mates with the circumferential surfaces of the driven rollers. A certain gap is left between the rotating ring and the driven rollers. The rotating ring is cut from an iron plate by a laser cutting machine. The thickness of the rotating ring is 20mm. It is fixedly connected by two 10mm thick iron rings through pin holes. The outer circumference of the rotating ring is rough and has laser-cut wavy patterns, while the side surface of the rotating ring is smooth. The mounting plate has two active support roller assemblies on the side of the rotating ring. The two active support roller assemblies are located on the lower side of the rotating ring and on opposite sides of the rotating ring. Each active support roller assembly includes a friction wheel and a motor. The motor is fixedly connected to the mounting plate, and the friction wheel is rotatably connected to the mounting plate. The motor drives the friction wheel to rotate, and the circumferential surface of the friction wheel and the outer circumferential surface of the rotating ring are continuously pressed together. The laser-cut wavy pattern meshes with the circumferential surface of the friction wheel to achieve stable transmission of the rotating ring. The weight of the rotating ring is entirely borne by the active support roller assembly. The active support roller assembly also includes a base. The friction wheel is fixed to the base via a mounting shaft. Sliding grooves are provided on opposite sides of the base, and locking bolts pass through the sliding grooves. The locking bolts are fixedly connected to the mounting plate. Two limiting blocks are provided on the mounting plate. The base is located between the rotating ring and the two limiting blocks. Adjusting bolts are screwed onto each of the two limiting blocks. The two adjusting bolts respectively cooperate with the opposite ends of the side of the base away from the rotating ring to adjust the radial position of the friction wheel relative to the rotating ring.

2. The rotating structure for a horizontal wrapping machine according to claim 1, characterized in that, The active support roller assembly also includes an active sprocket and a driven sprocket. The active sprocket is connected to the output end of the motor. The central axis of the driven sprocket coincides with the central axis of the friction wheel. The driven sprocket is fixedly connected to the friction wheel. The active sprocket and the driven sprocket are connected by a chain drive.

3. The rotating structure for a horizontal wrapping machine according to claim 1, characterized in that, Several of the driven rollers are evenly arranged on the outer periphery of the rotating ring.

4. The rotating structure for a horizontal winding packaging machine according to claim 3, characterized in that, The sides of the two iron rings are fitted together, and the inner and outer circumferential surfaces of the two iron rings are aligned. The two iron rings are the first iron ring and the second iron ring, respectively.

5. The rotating structure for a horizontal winding packaging machine according to claim 4, characterized in that, The driven roller includes a driven roller body, and annular retaining rings are respectively provided at opposite ends along its axial direction on the driven roller body. The outer circumferential surface of the rotating ring cooperates with the circumferential surfaces of several driven roller bodies.

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