Flexible reversing device suitable for cigarette cartons of multiple sizes

Abstract

The flexible reversing device comprises an upper-layer conveying device and a lower-layer conveying device, a loopback mechanism assembly is arranged on the outer side of the end of the upper-layer conveying device and the outer side of the end of the lower-layer conveying device, and the loopback mechanism assembly comprises an outwards-bent sliding groove covering the tail of the upper-layer conveying device. The outwards-bent sliding groove extends downwards to the position above the head end of the lower-layer conveying device, and a plurality of brush rollers with different rotating directions are arranged in the outwards-bent sliding groove from top to bottom. Through the combined action of a plurality of brush rollers with different rotating directions, the cigarette cartons can be smoothly overturned by 180 degrees from the upper-layer conveying device and then conveyed to the lower-layer conveying device, and the brush rollers are of flexible structures and can adapt to the cigarette cartons with different sizes and thicknesses; therefore, one sub-line sorting system has the capability of sorting various cigarettes with different sizes at the same time. Meanwhile, due to the brush roller of a flexible structure, the cigarette posture is good after the cigarette is reversed, and deflection is avoided.

Description

Technical Field

[0001] This invention relates to a cigarette pack reversing device, and more particularly to a flexible reversing device applicable to cigarette packs of various sizes, belonging to the technical field of cigarette pack logistics sorting equipment. Background Technology

[0002] During the cigarette sorting process, the cigarettes are sent out of the sorting machine and fall onto the upper sorting and conveying device for transport. The head of the upper sorting and conveying device is connected to the lower sorting and conveying device through a reversing mechanism. The reversing mechanism flips the cigarettes 180° and then they fall onto the lower sorting and conveying device for transport.

[0003] The upper sorting and conveying device, the reversing mechanism, and the lower sorting and conveying device constitute a sub-line sorting system. A few years ago, there were only a few different sizes of cigarette cartons, and several sub-line sorting systems were set up for each size. Different sub-line sorting systems require different reversing mechanisms, mainly because the cigarette cartons are required to maintain a good posture after passing through the reversing mechanism. Therefore, the outer curved chute size of the reversing mechanism must be adapted to the size of the cigarette cartons to ensure good posture after reversal and avoid skewing.

[0004] However, in recent years, with the continuous improvement of people's living standards, there are more and more cigarette cartons of different sizes. Factory space is limited, and it's impossible to add a separate sorting line for every new size. Therefore, each sorting line needs to be capable of sorting multiple sizes of cigarette cartons simultaneously. This requires the reversing mechanism of the sorting line to be able to handle multiple different sizes of cigarette cartons at the same time. Currently, however, there is no good solution to this technical problem. Summary of the Invention

[0005] The purpose of this invention is to provide a flexible reversing device applicable to cigarette packs of multiple sizes. This flexible reversing mechanism can simultaneously accommodate multiple cigarette packs of different sizes, thereby enabling a single sub-line sorting system to simultaneously sort multiple cigarette packs of different sizes.

[0006] The technical solution of the present invention: A flexible reversing device applicable to cigarette packs of various sizes, comprising an upper conveying device and a lower conveying device, wherein a loop mechanism assembly is provided on the outer side of the ends of the upper and lower conveying devices, the loop mechanism assembly including an outer curved chute covering the tail of the upper conveying device, the outer curved chute extending downward to above the head of the lower conveying device, and multiple brush rollers with different rotation directions arranged from top to bottom inside the outer curved chute;

[0007] There are three brush rollers, including brush roller A located directly above the tail of the upper conveyor device, brush roller B located directly below its tail, and brush roller C located between and behind brush roller A and brush roller B. Brush roller A and brush roller C rotate counterclockwise, and brush roller B rotates clockwise.

[0008] Multiple brush rollers rotating in different directions are driven by the same drive motor via the same double-sided toothed synchronous belt.

[0009] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, the front surface of the outer curved chute is provided with multiple openings, and the brush roller A and brush roller C have similar structures, with their brush bodies divided into multiple segments. The bottom of each segment of the brush body extends into the interior of the curved chute from an opening provided on its surface.

[0010] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, the upper conveying device includes front and rear side plates. Between the side plates, a multi-wedge belt drive roller, a support plate, and a tensioning seat are installed sequentially from front to back. The tensioning seat is provided with multiple forward-extending multi-wedge belt tensioning rollers at intervals. One end of the multi-wedge belt drive roller is connected to a roller drive motor. The multi-wedge belt tensioning roller and the multi-wedge belt drive roller are connected by a multi-wedge belt. Below the multi-wedge belt tensioning roller, there is a brush roller. The brush body of the brush roller is divided into multiple segments, and the top of each segment of the brush body extends out from the gap between the multi-wedge belt tensioning rollers or between it and the outer side.

[0011] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, a brush roller mounting plate is installed on each of the front and rear sides of the upper conveying device. The two ends of the brush roller are fixed on the brush roller mounting plate. The front end of the brush roller extends out of the front brush roller mounting plate, and a synchronous pulley is fixed on its extended end. Multiple synchronous belt tensioning pulleys are also installed on the outer wall of the front brush roller mounting plate. The double-toothed synchronous belt is connected to the synchronous pulley and the synchronous belt tensioning pulley.

[0012] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, a motor bracket is installed at the front end of the lower conveying device, and a drive motor is mounted on the motor bracket.

[0013] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, a transmission belt cover is provided on the outside of the synchronous pulley, the synchronous belt tensioner, and the double-sided toothed synchronous belt to cover them.

[0014] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, brush rollers A and C are covered by brush roller covers on their tops.

[0015] In the aforementioned flexible reversing device applicable to cigarette packs of various sizes, the outer curved chute has a C-shaped structure, including two side plates and a top plate. Its top end extends horizontally forward to cover the tail of the upper conveying device and is fixedly connected to the front and rear sides of the upper conveying device. The bottom sides of the outer curved chute are provided with chutes, and the chutes are fixedly connected to the front and rear sides of the lower conveying device via chute supports.

[0016] The beneficial effects of this invention are as follows: Compared with the prior art, this invention provides a loop mechanism assembly on the outer side of the ends of the upper and lower conveying devices. The loop mechanism assembly mainly includes an outer curved chute and three brush rollers at different positions and rotating in different directions. Through the combined action of these multiple brush rollers, the cigarette packs can be smoothly rotated 180° from the upper conveying device and conveyed to the lower conveying device. Furthermore, the brush rollers are flexible, adaptable to cigarette packs of different sizes and thicknesses, thus enabling a single sorting line to simultaneously sort multiple cigarette packs of different sizes. Simultaneously, the flexible brush roller structure ensures good cigarette posture after reversal, preventing skewing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 for Figure 1 Simplified structural diagram;

[0019] Figure 3 This is a simplified schematic diagram of the present invention;

[0020] Figure 4 This is the main view of the loop mechanism component;

[0021] Figure 5 for Figure 4 Top view;

[0022] Figure 6 This is a top view of the upper conveyor system;

[0023] Figure 7 This is a schematic diagram of the structure of the external curved slide groove;

[0024] Figure 8 This is a schematic diagram of the brush roller structure;

[0025] Figure 9 This is a schematic diagram of the structure of the brush roller mounting plate.

[0026] Reference numerals: 1-Lower conveyor, 2-Upper conveyor, 3-Return mechanism assembly, 4-Synchronous pulley, 5-Outer curved chute, 6-Brush roller, 601-Brush roller A, 602-Brush roller B, 603-Brush roller C, 7-Brush roller cover, 8-Drive belt cover, 9-Synchronous belt tensioner, 10-Double-sided toothed synchronous belt, 11-Drive motor, 12-Motor bracket, 13-Chute support, 14-Brush roller mounting plate, 15-Multi-ribbed belt drive roller, 16-Multi-ribbed belt, 17-Support plate, 18-Tensioning seat, 19-Roller drive motor, 20-Side plate, 21-Multi-ribbed belt tensioner. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0028] An embodiment of the present invention: A flexible reversing device applicable to cigarette packs of various sizes includes an upper conveying device 2 and a lower conveying device 1. A loop mechanism assembly 3 is provided on the outer side of the ends of the upper conveying device 2 and the lower conveying device 1. The loop mechanism assembly 3 includes an outer curved chute 5 that covers the tail of the upper conveying device 2. The outer curved chute 5 extends downward to above the head end of the lower conveying device 1. Three brush rollers 6 with different rotation directions are provided inside the outer curved chute 5 from top to bottom.

[0029] The brush rollers 6 are provided in three configurations: brush roller A601 located directly above the tail of the upper conveyor device 2; brush roller B602 located directly below the tail of the upper conveyor device 2; and brush roller C603 located between and behind brush rollers A601 and B602. Brush rollers A601 and C603 rotate counterclockwise, while brush roller B602 rotates clockwise. Figure 3As shown, the cigarette pack is conveyed along the upper conveyor 2 to its tail end and first enters the outer curved chute 5. Then, under the combined action of the upper conveyor 2 and the brush roller A601, it enters the curved part of the outer curved chute 5. At the same time, the bottom of the cigarette pack contacts the brush roller B602 and the top contacts the brush roller C603. Under the combined action of the brush rollers B602 and C603, the cigarette pack smoothly enters the lower area of ​​the outer curved chute 5. Since the outer curved chute 5 is provided, it can prevent the cigarette pack from being thrown outward. The cigarette pack can only move in the internal space of the outer curved chute 5. After entering the lower area of ​​the outer curved chute 5, the cigarette pack slides down the inner surface of the outer curved chute 5 under the action of its own gravity and the friction of the brush roller B602, and finally falls onto the lower conveyor 1. Because the brushes of the brush roller 6 are flexible, cigarettes of different thicknesses will all be subjected to frictional force after entering the outer curved chute 5. This frictional force allows them to smoothly pass through the outer curved chute 5, rotate 180°, and fall onto the lower conveyor device 1. Furthermore, the brushes of the brush roller 6 prevent tilting or deflection during the conveying process, maintaining a good cigarette posture.

[0030] The multiple brush rollers 6 rotating in different directions are driven by the same drive motor 11 via the same double-sided toothed synchronous belt 10. It is not necessary to set a corresponding drive device for each brush roller 6. One drive motor 11 can drive three brush rollers 6 to rotate in different directions via a single double-sided toothed synchronous belt 10, which simplifies the overall structure and reduces manufacturing costs.

[0031] The front surface of the outer curved chute 5 is provided with multiple openings. The brush rollers A601 and C603 have similar structures, and their brush bodies are divided into multiple segments. The bottom of each segment of the brush body extends into the interior through an opening on the surface of the curved chute 5, so that the brush rollers A601 and C603 can extend into the interior of the outer curved chute 5 to participate in the conveying process of the cigarettes. At the same time, when the brush rollers A601 and C603 have problems, they only need to be removed from the brush roller mounting plate 14, without having to disassemble the outer curved chute 5.

[0032] The upper conveying device 2 includes front and rear side plates 20. Between the side plates 20, a multi-wedge belt drive roller 15, a support plate 17, and a tensioning seat 18 are installed sequentially from front to back. The tensioning seat 18 is provided with a plurality of forward-extending multi-wedge belt tensioning rollers 21. One end of the multi-wedge belt drive roller 15 is connected to the roller drive motor 19. The multi-wedge belt tensioning rollers 21 and the multi-wedge belt drive roller 15 are connected by a multi-wedge belt 16. The brush body of the brush roller B602 is divided into multiple segments. The top of each segment of the brush body extends out from the gap between or between the multi-wedge belt tensioning rollers 21 and the outer side. This structure allows the multi-wedge belt 16 of the upper conveyor device 2 and the brush of the brush roller B602 to form a staggered distribution. When the cigarette pack is conveyed to the tail of the upper conveyor device 2 by the multi-wedge belt 16, the pallet 17 can support the cigarette pack during the conveying process. Under the combined action of the brush roller A601 and the multi-wedge belt 16, it is pushed forward smoothly to the brush roller B602. Under the combined action of the brush roller B602 and the brush roller C603, it is flipped and enters the space between the brush roller B602 and the outer curved chute 5. Under its own weight and the friction of the brush roller B602, it finally falls onto the lower conveyor device 1. If the upper conveyor 2 is a common belt conveyor with a brush roller B602 at the head end, a V-shaped groove will be formed between the belt conveyor and the brush roller B602. When a narrow cigarette pack enters the brush roller B602 from the upper conveyor 2, it is easy to get stuck in the V-shaped groove between the two, causing the cigarette pack to be unable to continue to be conveyed forward. However, the staggered distribution of the multi-wedge belt 16 and the brush of the brush roller B602 will not have this problem.

[0033] Each of the front and rear side plates 20 of the upper conveyor device 2 is equipped with a brush roller mounting plate 14. The two ends of the brush rollers 6 are fixed to the brush roller mounting plates 14. The front ends of the three brush rollers 6 extend beyond the front brush roller mounting plate 14, and each extended end is fixed with a synchronous pulley 4. Two synchronous belt tensioning pulleys 9 are also installed on the outer wall of the front brush roller mounting plate 14. The double-toothed synchronous belt 10 is connected to the synchronous pulleys 4 of the three brush rollers 6 and the two synchronous belt tensioning pulleys 9. Figure 3 It can be seen that the drive motor 11 rotates counterclockwise during operation, which drives the brush rollers A601 and C603 to rotate counterclockwise synchronously via the double-sided toothed synchronous belt 10, while the brush roller B602 rotates clockwise. The tension of the double-sided toothed synchronous belt 10 can be adjusted by the two synchronous belt tensioning pulleys 9.

[0034] A motor bracket 12 is installed on the front end support of the lower conveying device 1, and a drive motor 11 is installed on the motor bracket 12.

[0035] The synchronous pulley 4, the synchronous belt tensioner 9, and the double-tooth synchronous belt 10 are covered by a transmission belt cover 8, which is fixed on the brush roller mounting plate 14 to protect the synchronous pulley 4, the synchronous belt tensioner 9, and the double-tooth synchronous belt 10.

[0036] The top of the brush rollers A601 and C603 is provided with a brush roller cover 7 to cover them. The brush roller cover 7 is fixed on the brush roller mounting plate 14, thereby achieving protection for the brush rollers A601 and C603.

[0037] The outer curved chute 5 has a C-shaped structure, including two side plates and a top plate. Its top end extends horizontally forward to cover the tail of the upper conveyor 2. At the same time, the two side plates of the horizontal section at the top end of the outer curved chute 5 are provided with outwardly extending wing plates, which are fixedly connected to the front and rear side plates of the upper conveyor 2 through the wing plates. The bottom sides of the outer curved chute 5 are provided with chutes, which are fixedly connected to the front and rear sides of the lower conveyor 1 through the chute support 13.

Claims

1. A flexible reversing device applicable to cigarette packs of various sizes, comprising an upper conveying device (2) and a lower conveying device (1), characterized in that: The upper conveying device (2) and the lower conveying device (1) are provided with a loop mechanism assembly (3) on the outer side of their ends. The loop mechanism assembly (3) includes an outer curved chute (5) that covers the tail of the upper conveying device (2). The outer curved chute (5) extends downward to the head of the lower conveying device (1). The outer curved chute (5) is provided with multiple brush rollers (6) with different rotation directions from top to bottom inside. The brush rollers (6) are provided in three parts, including brush roller A (601) located directly above the tail of the upper conveyor (2), brush roller B (602) located directly below its tail, and brush roller C (603) located between and behind brush roller A (601) and brush roller B (602). The brush rollers A (601) and C (603) rotate counterclockwise, and the brush roller B (602) rotates clockwise. Multiple brush rollers (6) rotating in different directions are driven by the same drive motor (11) via the same double-sided toothed synchronous belt (10).

2. The flexible reversing device applicable to multi-size cigarette packs according to claim 1, characterized in that: The front surface of the outer curved groove (5) is provided with multiple openings. The brush roller A (601) and the brush roller C (603) have similar structures. Their brush bodies are divided into multiple segments. The bottom of each segment of the brush body extends into the interior from an opening provided on the surface of the curved groove (5).

3. The flexible reversing device applicable to multi-size cigarette packs according to claim 1, characterized in that: The upper conveying device (2) includes front and rear side plates (20). Between the two side plates (20), a multi-wedge belt drive roller (15), a support plate (17) and a tensioning seat (18) are installed sequentially from front to back. The tensioning seat (18) is provided with a number of forward-extending multi-wedge belt tensioning rollers (21). One end of the multi-wedge belt drive roller (15) is connected to the roller drive motor (19). The multi-wedge belt tensioning roller (21) and the multi-wedge belt drive roller (15) are connected by a multi-wedge belt (16). A brush roller (6) is provided below the multi-wedge belt tensioning roller (21). The brush body of the brush roller (6) is divided into multiple segments. The top of each segment of the brush body extends out from the gap between the multi-wedge belt tensioning rollers (21) or between it and the outside.

4. A flexible reversing device applicable to multi-size cigarette packs according to claim 1, characterized in that: Each of the front and rear sides of the upper conveying device (2) is equipped with a brush roller mounting plate (14). The two ends of the brush roller (6) are fixed on the brush roller mounting plate (14). The front end of the brush roller (6) extends to the outside of the front brush roller mounting plate (14), and a synchronous pulley (4) is fixed on its extended end. Multiple synchronous belt tensioning pulleys (9) are also installed on the outer wall of the front brush roller mounting plate (14). The double-tooth synchronous belt (10) is connected to the synchronous pulley (4) and the synchronous belt tensioning pulley (9).

5. A flexible reversing device applicable to multi-size cigarette packs according to claim 1, characterized in that: The lower conveying device (1) has a motor bracket (12) installed at the front end, and the drive motor (11) is installed on the motor bracket (12).

6. A flexible reversing device applicable to multi-size cigarette packs according to claim 4, characterized in that: The synchronous pulley (4), the synchronous belt tensioner (9) and the double-sided toothed synchronous belt (10) are covered by a transmission belt cover (8).

7. A flexible reversing device applicable to multi-size cigarette packs according to claim 1, characterized in that: The top of the brush rollers A (601) and C (603) is provided with a brush roller cover (7) to cover them.

8. A flexible reversing device applicable to multi-size cigarette packs according to claim 1, characterized in that: The outer curved chute (5) is a C-shaped structure, including two side plates and a top plate. Its top end extends horizontally forward to cover the tail of the upper conveying device (2) and is fixedly connected to the front and rear sides of the upper conveying device (2). The bottom sides of the outer curved chute (5) are provided with chutes, and the chutes are fixedly connected to the front and rear sides of the lower conveying device (1) via chute supports (13).

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