Cigarette bar active feeding and preheating mechanism

Abstract

The utility model discloses an active feeding and preheating mechanism for cigarette bars, and relates to the technical field of cigarette packaging. Comprising mounting side plates which are symmetrically arranged, a lower heating roller and an upper heating roller which are opposite in rotation direction are arranged between the two mounting side plates in parallel, and the upper heating roller and the lower heating roller are in adjustable transmission through a triple gear structure. By adopting the triple gear structure, the upper heating roller and the lower heating roller are ensured to stably rotate in opposite directions at the same speed, the upper heating roller is positioned right above the lower heating roller, the distance between the upper heating roller and the lower heating roller is adjustable, the distance can be adjusted by directly driving the upper heating roller to move upwards through the adjusting knob, the operation is simple, convenient and rapid, and the production efficiency is improved. The rotating speed of the heating roller is not changed; in addition, the upper and lower large surfaces, especially the lower lapping surface, of the cigarette bar can be synchronously preheated and ironed in the traction process of the two heating rollers on the cigarette bar, so that the effect of synchronous ironing is achieved while active feeding is achieved, and the packaging quality and attractiveness of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette packaging, in particular to an active feeding and preheating mechanism for cigarette bars. Background Technique

[0002] To ensure the quality of cigarette products and enhance the appearance effect of the products, manufacturers will package the outer part of cigarette bars with PVC transparent films and use the heat shrinkage principle to iron the PVC transparent films outside the cigarette cases to achieve a smooth and clean surface and enhance the aesthetic effect.

[0003] The existing ironing method for cigarette bars adopts a passive feeding method. The cigarette bars at the front of the queue need to be pushed by the cigarette bars at the rear to enter the ironing position of the ironing and packaging machine. This method has strict requirements for the installation position accuracy of the ironing structure in the ironing and packaging machine. Once the alignment is inaccurate, collisions and squeezes between the ironing structure and the cigarette bars may occur, and even equipment damage may occur, which has defects in terms of safety and reliability during use. In addition, the passive feeding method lacks preheating of the upper and lower large surfaces of the cigarette bars, resulting in the inability to guarantee the ironing quality of the lapped surface during the subsequent ironing process. Therefore, we provide an active feeding and preheating mechanism for cigarette bars. Content of the Utility Model

[0004] The purpose of the utility model is to provide an active feeding and preheating mechanism for cigarette bars to solve the problems raised in the background technique.

[0005] The utility model can be realized through the following technical solutions: an active feeding and preheating mechanism for cigarette bars, including symmetrically arranged installation side plates. A lower heating roller and an upper heating roller with opposite rotation directions are arranged in parallel between the two installation side plates, and an adjustable transmission is adopted between the upper heating roller and the lower heating roller by a triple gear structure.

[0006] The triple gear structure includes two sets of series-connected planetary gear structures. Among them, the front-stage planetary gear structure includes a linkage gear one rotatably arranged on the installation side plate and a linkage gear two rotating around the center of the linkage gear one and meshing with it; the rear-stage planetary gear structure is centered on the linkage gear two and is provided with an upper transmission gear meshing and rotating around its center, and the upper transmission gear is fixedly sleeved on the outside of the upper heating roller.

[0007] A further technical improvement of the utility model lies in that: the upper heating roller is arranged directly above the lower heating roller and they have the same rotation speed.

[0008] A further technical improvement of the utility model lies in that: a linkage arm one is arranged between the centers of the linkage gear one and the linkage gear two, and the distance between the two linkage gears is constrained by a fixed length through the linkage arm one.

[0009] A further technical improvement of the present utility model lies in that: a linkage arm two is arranged between the center of the linkage gear two and the center of the upper transmission gear, and the distance between the linkage gear two and the upper transmission gear is constrained to a fixed length through the linkage arm two.

[0010] A further technical improvement of the present utility model lies in that: positioning sliders are respectively rotatably arranged at both ends of the upper heating roller, an installation top plate is fixed at the top of the installation side plate, an adjusting knob is threadedly connected to the installation top plate, and the bottom of the adjusting knob is rotatably connected to the positioning slider.

[0011] A further technical improvement of the present utility model lies in that: heating tubes are arranged inside both the upper heating roller and the lower heating roller.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] The present utility model adopts a triple gear structure to ensure that the upper and lower heating rollers rotate stably in opposite directions at the same speed. At the same time, it realizes that the upper heating roller is located directly above the lower heating roller and the distance between the two is adjustable. When adjusting the distance, directly drive the upper heating roller to move upward through the adjusting knob, which is simple and fast to operate, and the rotation speed of the heating roller will not change; in addition, during the traction process of the two heating rollers on the cigarette rod, the upper and lower large surfaces of the cigarette rod, especially the lower lapped surface, are synchronously preheated and ironed, so as to achieve the effect of active feeding and synchronous ironing at the same time, improving the packaging quality and aesthetics of the product; BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the three-dimensional installation and transmission structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the transmission relationship of the gear linkage structure of the present utility model.

[0017] In the figure: 1, installation side plate; 2, installation top plate; 3, auxiliary side plate; 4, cigarette rod conveying platform; 5, driving gear; 6, transmission shaft; 7, intermediate gear; 8, lower transmission gear; 9, lower heating roller; 10, linkage gear one; 11, linkage arm one; 12, linkage gear two; 13, linkage arm two; 14, upper heating roller; 15, positioning slider; 16, upper transmission gear; 17, adjusting knob. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following will describe in detail the specific embodiments, structures, features and effects of the present utility model with reference to the accompanying drawings and preferred embodiments.

[0019] Please refer to Figure 1-2 as shown in the figure, the active feeding and preheating mechanism for cigarette rods includes symmetrically arranged mounting side plates 1( Figure 1 only one side is drawn in the figure, and the structure of the other side is exactly the same). At the top of the mounting side plate 1, a mounting top plate 2 is fixed. Inside the mounting side plate 1, an auxiliary side plate 3 is arranged in parallel. The auxiliary side plate 3 is fixedly connected to the mounting top plate 2. Inside the auxiliary side plate 3, a cigarette rod conveying platform 4 is installed. The cigarette rod conveying platform 4 can be a conveyor belt or a non-powered sliding table;

[0020] Between the bottom positions of the two mounting side plates 1, a drive shaft 6 driven by a motor is rotatably installed. At a position close to the mounting side plate 1 on the drive shaft 6, a drive gear 5 is coaxially and fixedly arranged. Above the drive gear 5, a transition gear 7 is arranged. The transition gear 7 is rotatably arranged on the mounting side plate 1 and meshes with the drive gear 5 for transmission;

[0021] Above the drive shaft 6, a lower heating roller 9 is horizontally arranged. Both ends of the lower heating roller 9 are rotatably connected to the mounting side plate 1. At the outer side of the lower heating roller 9 near both ends, a lower transmission gear 8 is sleeved and fixed. The lower transmission gear 8 meshes with the transition gear 7 for transmission. On one side of the lower transmission gear 8, a linkage gear one 10 meshes for transmission. The linkage gear one 10 is rotatably connected to the corresponding mounting side plate 1. At a position coaxially with the linkage gear one 10 on the other side of the mounting side plate 1, a linkage arm one 11 is rotatably installed. The linkage gear one 10 and the linkage arm one 11 rotate synchronously. At the other end of the linkage arm one 11, a linkage gear two 12 is rotatably installed, and the linkage gear two 12 meshes with the linkage gear one 10 for transmission. The linkage gear two 12 constitutes a planetary gear of the linkage gear one 10;

[0022] One end of the linkage arm one 11 connected to the linkage gear two 12 is also rotatably connected to a linkage arm two 13. One end of the linkage arm two 13 far from the linkage arm one 11 is rotatably connected to a positioning slider 15. Between the two positioning sliders 15, an upper heating roller 14 is rotatably installed. At the positions of the two sides of the upper heating roller 14 close to the positioning sliders 15, an upper transmission gear 16 is sleeved and fixed. The upper transmission gear 16 meshes with the corresponding linkage gear two 12 for transmission;

[0023] Above each positioning slider 15, an adjusting knob 17 is arranged. The adjusting knob 17 is threadedly connected to the mounting top plate 2, and the adjusting knob 17 and the corresponding positioning slider 15 can rotate relative to each other and do not disengage from contact, and can drive the positioning slider 15 to move up and down;

[0024] Furthermore, heating tubes are installed inside both the lower heating roller 9 and the upper heating roller 14. On the auxiliary side plate 3, a strip-shaped hole for adjusting the up and down movement of the upper heating roller 14 is opened.

[0025] When the present utility model is in use, the output shaft of the motor rotates to drive the transmission shaft 6 to rotate, and the driving gear 5 rotates accordingly. Under the power transmission of the intermediate gear 7, the lower transmission gear 8 fixedly installed on the lower heating roller 9 is driven to rotate. The rotation of the lower transmission gear 8 drives the first linkage gear 10 to rotate, and then drives the second linkage gear 12 and the upper transmission gear 16 to rotate in sequence. The rotation direction of the upper transmission gear 16 is opposite to that of the lower transmission gear 8, so that the rotation directions of the upper heating roller 14 and the lower heating roller 9 are opposite. They cooperate with each other to preheat the upper and lower surfaces of the cigarette rod that enters between the two heating rollers from the cigarette rod conveying platform 4, and actively transfer it to the ironing station.

[0026] When the height dimension of the cigarette rod changes, the distance between the two heating rollers can be adjusted by rotating the adjustment knob 17. Taking the case where the height of the cigarette rod increases as an example:

[0027] Rotate the adjustment knob 17, which drives the positioning slider 15 to move vertically upward. At the same time, under the restriction of the second linkage arm 13, the upper transmission gear 16 and the second linkage gear 12 always maintain a meshing transmission relationship. As a result, relative rotation occurs between the first linkage arm 11 and the second linkage arm 13, and the first linkage arm 11 also deflects to compensate for the horizontal displacement of the second linkage gear 12. Thus, the distance between the two heating rollers can be adjusted arbitrarily while maintaining transmission stability, and at the same time, the upper heating roller 14 is always directly above the lower heating roller 9, ensuring the transfer and preheating effects on the cigarette rod.

[0028] It should be noted that the rotation speeds of the upper and lower heating rollers are the same, which can be achieved by controlling the transmission ratios of multiple gears in cooperation.

[0029] The above is only a preferred embodiment of the present utility model, and it does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. The active feeding and preheating mechanism for cigarette rods, including symmetrically arranged mounting side plates (1), is characterized in that, A lower heating roller (9) and an upper heating roller (14) with opposite rotation directions are arranged in parallel between the two installation side plates (1). An adjustable drive is adopted between the upper heating roller (14) and the lower heating roller (9) by a triple gear structure; The triple gear structure includes two sets of planetary gear structures arranged in series. Among them, the front-stage planetary gear structure includes a linkage gear one (10) rotatably arranged on the installation side plate (1) and a linkage gear two (12) rotating around the center of the linkage gear one (10) and meshing with it; The rear-stage planetary gear structure takes the linkage gear two (12) as the center and is provided with an upper transmission gear (16) meshing and rotating around its center. The upper transmission gear (16) is fixedly sleeved on the outside of the upper heating roller (14).

2. The active feeding and preheating mechanism for cigarette rods according to claim 1, wherein The upper heating roller (14) is arranged directly above the lower heating roller (9) and they have the same rotation speed.

3. The active feeding and preheating mechanism for cigarette rods according to claim 1, characterized in that, A linkage arm one (11) is arranged between the center of the linkage gear one (10) and the center of the linkage gear two (12), and the distance between the two linkage gears is constrained by a fixed length through the linkage arm one (11).

4. The active feeding and preheating mechanism for cigarette rods according to claim 1, wherein A linkage arm two (13) is arranged between the center of the linkage gear two (12) and the center of the upper transmission gear (16), and the distance between the linkage gear two (12) and the upper transmission gear (16) is constrained by a fixed length through the linkage arm two (13).

5. The active feeding and preheating mechanism for cigarette rods according to claim 1, characterized in that, Positioning sliders (15) are respectively rotatably arranged at both ends of the upper heating roller (14). An installation top plate (2) is fixed at the top of the installation side plate (1). An adjustment knob (17) is threadedly connected to the installation top plate (2), and the bottom of the adjustment knob (17) is rotatably connected to the positioning slider (15).

6. The active feeding and preheating mechanism for cigarette rods according to claim 1, characterized in that, Heating tubes are arranged inside both the upper heating roller (14) and the lower heating roller (9).

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