Counterweight ball automatic feeding device

Abstract

The utility model relates to a kind of counterweight ball automatic feeding device, including vertical lifting frame and respectively shaft joint in the driving sprocket and passive sprocket of lifting frame two ends, further including the lifting motor of driving driving sprocket rotation and the chain on driving sprocket and passive sprocket, the outside of chain is fixedly connected with multiple pusher plate, the side of chain upward movement is wrapped with fixed shroud, shroud and chain form counterweight ball lifting passage between, further including counterweight ball import groove and counterweight ball export groove, the counterweight ball import groove fixedly set and one end inserts below shroud, counterweight ball export groove is located on the side of chain downward movement upper end and is hinged with lifting frame, the utility model is driven with the structure of chain to take pusher plate, realizes that counterweight ball is continuously, stably automatically lifted and transported from low to high, significantly improves feeding efficiency, reduces artificial cost and labor intensity;Shroud effectively prevents that counterweight ball accidentally falls off in lifting process, guarantees the reliability of conveying.

Description

Technical Field

[0001] This utility model relates to the field of film winding technology, specifically to an automatic counterweight ball feeding device. Background Technology

[0002] In the production of films and other roll materials, to ensure the stability of the roll material during subsequent handling, storage, and transportation, avoid the "daisy-core" phenomenon, and improve the rigidity of the roll, counterweight balls can be installed inside the empty roll. These counterweight balls have a diameter slightly smaller than the inner diameter of the roll for easy installation. Loading the counterweight balls manually or using simple fixed conveyor equipment is inefficient and labor-intensive. Especially in actual production, rolls come in various lengths, and their end positions vary with specifications. Existing technologies struggle to flexibly adapt to these positional changes, often requiring frequent equipment adjustments or manual alignment, resulting in low automation, low feeding efficiency, and a high risk of errors, as well as the risk of counterweight balls falling off or getting stuck during transport. Therefore, there is an urgent need for a counterweight ball loading device that can achieve automated, continuous, and stable feeding, and intelligently adapt to changes in the end position of rolls of different lengths. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing an automatic counterweight ball feeding device.

[0004] This utility model is achieved through the following technical solution: providing an automatic counterweight ball feeding device, including a vertical lifting frame and a drive sprocket and a driven sprocket respectively shafted to both ends of the lifting frame, a lifting motor for driving the drive sprocket to rotate, and a chain wound around the drive sprocket and the driven sprocket. Multiple deflectors are fixedly connected to the outer side of the chain. A fixed protective cover is wrapped around the upward moving side of the chain, and a counterweight ball lifting channel is formed between the protective cover and the chain. The device also includes a counterweight ball inlet groove and a counterweight ball outlet groove. The counterweight ball inlet groove is fixedly installed and one end is inserted below the protective cover. The counterweight ball outlet groove is located at the upper end of the downward moving side of the chain and is hinged to the lifting frame.

[0005] In this design, the counterweight balls are arranged sequentially in the counterweight ball inlet groove and roll towards the chain. The lifting motor drives the chain to move in a cycle, and the counterweight balls are moved upward by the pull plate. During the movement, the counterweight balls are prevented from falling out by the protective cover until they move to the other side and flow out from the counterweight ball outlet groove into the reel. The counterweight ball outlet groove is hinged to the lifting frame, so the movable end can swing up and down. Due to the different lengths of the reel, the position of the reel end is not fixed. Therefore, a receiving groove is set at the reel end to follow the movement of the reel end. The movable end of the counterweight ball outlet groove overlaps with the receiving groove, so that the counterweight balls in the counterweight ball outlet groove flow from the receiving groove into the reel. When the reel length is different, the position of the receiving groove is adjusted accordingly, and the overlap position between the counterweight ball outlet groove and the receiving groove changes accordingly.

[0006] As an optimization, the lifting frame includes two parallel lifting side plates, which are fixedly connected by a connecting column. The driving sprocket and the driven sprocket are located between the two lifting side plates. In this design, the driving sprocket and the driven sprocket are installed using two lifting side plates.

[0007] As an optimization, the protective cover covers the upper end of the chain. This also serves to guide the counterweight ball and prevent it from slipping out at the bend in the upper part of the chain.

[0008] As an optimization, the driving sprocket is connected to the upper end of the lifting frame via a driving shaft, and the driven sprocket is connected to the lower end of the lifting frame via a height adjustment mechanism. In this design, the height adjustment mechanism is used to adjust the vertical position of the driven sprocket, thereby adjusting the chain tension.

[0009] As an optimization, the height adjustment mechanism includes a driven shaft that slides vertically onto the lifting frame and tightening bolts that press against both ends of the driven shaft from top to bottom. The driven sprocket is axled onto the driven shaft, and the tightening bolts are threaded onto a fixed top plate. In this design, rotating the tightening bolts can tighten the driven shaft downwards, thereby achieving chain tension.

[0010] As an optimization, the side of the protective cover closest to the chain is curved. This allows the curved shape to fit snugly against the spherical surface of the counterweight ball, thus providing better guidance.

[0011] As an optimization, the protective cover is fixedly connected to the lifting frame via a protective cover connecting plate. In this solution, the protective cover is fixedly installed through the protective cover connecting plate.

[0012] The beneficial effects of this utility model are as follows: The automatic counterweight ball feeding device of this utility model, through the chain-driven structure with a deflector plate, combined with the fixed protective cover that wraps around the lifting chain to form a closed lifting channel, realizes the continuous and stable automatic lifting and conveying of the counterweight ball from low to high, which significantly improves the feeding efficiency and reduces labor costs and labor intensity; the protective cover effectively prevents the counterweight ball from accidentally falling off during the lifting process, ensuring the reliability of the conveying.

[0013] The counterweight ball outlet groove is designed as a movable end hinged to the lifting frame, and is paired with a receiving groove at the end of the reel that moves with the reel. This allows the movable end of the outlet groove to flexibly engage with receiving grooves at different positions. This innovative design cleverly solves the core problem of inconsistent end positions caused by variations in reel length specifications. Without stopping the machine or making significant adjustments to the main structure, it enables smooth and precise transfer of the counterweight ball from the outlet groove to the receiving groove and then to the inside of the reel. This greatly improves the equipment's versatility and automation level, meeting the demands of modern production lines for efficient, flexible, and intelligent feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0015] Figure 2 This is a side view of the present invention.

[0016] Figure 3 This utility model Figure 1 Sectional view of plane AA;

[0017] Figure 4 This utility model Figure 2 Enlarged view of section B in the middle;

[0018] Figure 5 This is a front view of the protective cover of this utility model;

[0019] As shown in the figure:

[0020] 1. Lifting side plate, 2. Connecting column, 3. Drive shaft, 4. Drive sprocket, 5. Motor base, 6. Lifting motor, 7. Chain, 8. Pulley, 9. Driven shaft, 10. Driven sprocket, 11. Tightening bolt, 12. Top plate, 13. Fixed seat, 14. Protective cover, 15. Counterweight ball outlet groove, 16. Counterweight ball inlet groove, 17. Protective cover connecting plate, 18. Counterweight ball, 19. Receiving groove. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0022] like Figures 1-5 As shown in Figure 2, an automatic counterweight ball feeding device of this utility model includes a vertical lifting frame and a drive sprocket 4 and a driven sprocket 10 respectively shafted to both ends of the lifting frame. In this embodiment, the lifting frame includes two parallel lifting side plates 1, each a vertical steel plate, with its lower end welded to a fixed base 13, thus connecting to the winding equipment. The two lifting side plates 1 are fixedly connected by connecting columns 2, thereby improving overall stability. Multiple connecting columns 2 are provided and arranged vertically, with both ends of each column welded to the middle position of the two lifting side plates 1.

[0023] The driving sprocket 4 and the driven sprocket 10 are located between the two lifting side plates 1. It also includes a chain 7 wound around the driving sprocket 4 and the driven sprocket 10, and a lifting motor 6 that drives the driving sprocket 4 to rotate. The lifting motor 6 is fixed to the outside of one of the lifting side plates 1 by a motor mount 5.

[0024] The drive sprocket 4 is connected to the upper end of the lifting frame via the drive shaft 3. Specifically, the two ends of the drive shaft 3 are respectively connected to the upper ends of the two lifting side plates 1. The drive sprocket 4 and the drive shaft 3 are connected by a key. One end of the drive shaft 3 is connected to the rotating shaft of the lifting motor 6, so that the lifting motor 6 drives the drive shaft 3 to rotate, and the drive shaft 3 drives the drive sprocket 4 to rotate, thereby driving the chain 7 to move in a cycle.

[0025] The passive sprocket 10 is connected to the lower end of the lifting frame via a height adjustment mechanism. The height adjustment mechanism includes a passive shaft 9 that slides vertically on the lifting frame and tightening bolts 11 that press against both ends of the passive shaft 9 from top to bottom. The passive sprocket 10 is connected to the middle of the passive shaft 9 via a bearing. The passive shaft 9 is horizontally arranged, with rectangular shafts at both ends. The lifting side plate 1 has vertical slots, and the rectangular shafts are inserted into the vertical slots, thus achieving the lifting and lowering guidance of the passive shaft 9.

[0026] Both lifting side plates 1 have horizontal top plates 12 welded to their outer sides. The tightening bolts 11 are threaded onto the fixed top plates 12. The lower end of the tightening bolts 11 rests in the circular countersunk hole on the upper end face of the passive shaft 9, thereby achieving chain tensioning through tightening.

[0027] Multiple levers 8 are fixed to the outer side of the chain 7. In this embodiment, a lever is installed on the chain 7 with each link in between. The distance between adjacent levers is slightly larger than the diameter of the counterweight ball. Therefore, the counterweight ball can be conveyed upward through the levers.

[0028] The upward-moving side of the chain 7 is covered by a fixed protective cover 14, which is fixed to the lifting frame via a protective cover connecting plate 17. The protective cover 14 is elongated and covers the upper end of the chain 7. The cross-section of the protective cover 14 is semi-circular, therefore the side of the protective cover 14 near the chain 7 is arc-shaped. This arc shape fits the spherical surface of the counterweight ball, providing better guidance. A counterweight ball lifting channel is formed between the protective cover 14 and the chain 7, and the protective cover prevents the counterweight ball from falling out during its upward movement.

[0029] It also includes a counterweight ball inlet groove 16 and a counterweight ball outlet groove 15. The counterweight ball inlet groove 16 is fixed on the fixed base 13 and one end is inserted under the protective cover 14. The counterweight balls are arranged in sequence from the counterweight ball inlet groove and roll towards the chain to the adjacent derailleur 8.

[0030] The counterweight ball outlet groove 15 is located at the upper end of the side where the chain 7 moves downward and is hinged to the lifting frame. Specifically, a hinge plate is fixed near the upper end of the two lifting side plates 1, and a horizontal pin is welded to the lower end of one end of the counterweight ball outlet groove 15. The pin passes through the hinge plate, thereby achieving the hinge and allowing the other end of the counterweight ball outlet groove 15 to swing up and down.

[0031] How to use this utility model:

[0032] In use, the counterweight balls are arranged sequentially in the counterweight ball inlet groove 16 and roll toward the chain 7. The lifting motor 6 drives the chain 7 to move in a cycle, and the counterweight balls 18 are moved upward by the deflector plate 8. During the movement, the protective cover 14 prevents the counterweight balls 18 from falling out. After moving to the other side, they flow out from the counterweight ball outlet groove 15 into the reel. Due to the different lengths of the reel, the position of the reel end is not fixed. Therefore, a receiving groove 19 is set at the reel end to follow the movement of the reel end. The movable end of the counterweight ball outlet groove 15 overlaps with the receiving groove 19, so that the counterweight balls in the counterweight ball outlet groove 15 flow from the receiving groove 19 into the reel. When the reel length is different, the position of the receiving groove 19 is adjusted accordingly, and the overlap position of the counterweight ball outlet groove 15 and the receiving groove 19 changes accordingly.

[0033] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. An automatic counterweight ball feeding device, characterized in that: The system includes a vertical lifting frame and a drive sprocket (4) and a driven sprocket (10) respectively shafted to both ends of the lifting frame. It also includes a lifting motor (6) that drives the drive sprocket (4) to rotate and a chain (7) wound around the drive sprocket (4) and the driven sprocket (10). Multiple levers (8) are fixed to the outside of the chain (7). A fixed protective cover (14) is wrapped around the side of the chain (7) that moves upward. A counterweight ball lifting channel is formed between the protective cover (14) and the chain (7). The system also includes a counterweight ball inlet groove (16) and a counterweight ball outlet groove (15). The counterweight ball inlet groove (16) is fixedly set and one end is inserted below the protective cover (14). The counterweight ball outlet groove (15) is located at the upper end of the side of the chain (7) that moves downward and is hinged to the lifting frame.

2. The automatic counterweight ball feeding device according to claim 1, characterized in that: The lifting frame includes two side-by-side lifting plates (1), which are fixed together by a connecting column (2). The driving sprocket (4) and the driven sprocket (10) are located between the two lifting plates (1).

3. The automatic counterweight ball feeding device according to claim 1, characterized in that: The shield (14) covers the upper end of the chain (7).

4. The automatic counterweight ball feeding device according to claim 1, characterized in that: The active sprocket (4) is connected to the upper end of the lifting frame via the active shaft (3), and the passive sprocket (10) is connected to the lower end of the lifting frame via the height adjustment mechanism.

5. The automatic counterweight ball feeding device according to claim 4, characterized in that: The height adjustment mechanism includes a passive shaft (9) that slides vertically on the lifting frame and a top bolt (11) that presses against both ends of the passive shaft (9) from top to bottom. The passive sprocket (10) is axially connected to the passive shaft (9), and the top bolt (11) is threadedly connected to the fixed top plate (12).

6. The automatic counterweight ball feeding device according to claim 1, characterized in that: The protective cover (14) is curved on the side near the chain (7).

7. The automatic counterweight ball feeding device according to claim 1, characterized in that: The protective cover (14) is fixedly connected to the lifting frame via the protective cover connecting plate (17).

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