A tensioning device for a cigarette storage conveyor belt

Abstract

The utility model provides a kind of for cigarette storage conveyor belt's tensioner, it is related to cigarette product processing technical field.Device includes: mounting bracket, movable frame, guide roller and mounting shaft, the side of mounting bracket is fixed on equipment wallboard, movable frame is U type, the bottom of movable frame is provided with the screw rod that projects vertically, mounting hole is opened in mounting bracket, spring is equipped outside the screw rod, the bottom end of screw rod passes through mounting hole and is fastened connection with nut cooperation, mounting shaft passes through guide roller and its both ends are fixedly connected with the both sides of movable frame, guide roller is used to support cigarette storage descending corner conveyor belt, the both ends of guide roller are equipped with bearing, and rotate with mounting shaft cooperation by bearing.The device can realize the flexible tensioning of the conveyor belt, so that the conveyor belt enters its guide groove smoothly, and increases the service life of the conveyor belt itself and its guide groove.

Description

Technical Field

[0001] This utility model relates to the field of cigarette product processing technology, and in particular to a tensioning device for a cigarette storage conveyor belt. Background Technology

[0002] Cigarette storage devices are currently the mainstream cigarette storage equipment between cigarette rolling machines and packaging machines. Finished cigarettes produced by the cigarette rolling machine are conveyed upwards via a corner conveyor belt to the horizontal conveyor belt of the cigarette storage device, then downwards via a corner conveyor belt into the inlet of the cigarette storage device, and finally transported into the storage device by the horizontal belt.

[0003] Downturn corner conveyor belts are wide-chain belts, and due to their own gravity, they often jam or collide when entering their slots. Currently, manufacturers have installed guide troughs at the conveyor belt inlet. These guide troughs are designed in an arc shape to accommodate the curvature of the downturn corner conveyor belt at this point, ensuring a smooth entry into the slot.

[0004] The descending corner conveyor belt of a cigarette storage device deforms after prolonged operation. Furthermore, the guide groove, made of plastic, wears down over time. These two factors cause the conveyor belt to detach from the guide groove, leading to the detached links seizing and stopping operation. To address these issues, this invention proposes a tensioning device for the cigarette storage device's conveyor belt, ensuring smooth entry of the descending corner conveyor belt into its guide groove and reducing wear on the guide groove. Utility Model Content

[0005] The purpose of this invention is to provide a tensioning device for a cigarette storage conveyor belt. This device can flexibly tension the conveyor belt at the real-time tension of the cigarette storage descending corner, so that the conveyor belt can smoothly enter its guide groove, thereby increasing the service life of the conveyor belt itself and its guide groove.

[0006] This utility model provides a tensioning device for a cigarette storage conveyor belt, comprising: a mounting frame, a movable frame, guide rollers, and a mounting shaft. One side of the mounting frame is fixed to a device wall panel. The movable frame is U-shaped, with a vertically extending screw at its bottom. The mounting frame has mounting holes, and a spring is fitted around the outside of the screw. The bottom end of the screw passes through the mounting holes and is fastened with a nut. The mounting shaft passes through the guide rollers, and its two ends are fixedly connected to the two sides of the movable frame. The guide rollers support the descending corner conveyor belt of the cigarette storage device. Bearings are installed at both ends of the guide rollers, and the bearings are rotatably engaged with the mounting shaft.

[0007] Preferably, the mounting bracket is an L-shaped plate, and the side of the mounting bracket is fixed to the equipment wall panel through fixing holes and fasteners.

[0008] Preferably, the screw is located at the bottom center of the movable frame, and the mounting hole is located in the middle of the mounting frame.

[0009] Preferably, guide rods parallel to the screw are symmetrically arranged on both sides, and guide holes corresponding to the positions of the guide rods are provided on the mounting bracket.

[0010] Preferably, the screw and the mounting hole, and the guide rod and the guide hole are clearance fits.

[0011] Preferably, the guide roller has mounting grooves at both ends, the bearing is fitted into the mounting grooves, and the guide roller has a through hole in its axial direction that allows the mounting shaft to pass through.

[0012] Preferably, a washer is provided between the outer side of the bearing and the end of the mounting shaft.

[0013] Preferably, one end of the mounting shaft is provided with a shoulder, the diameter of which is larger than the inner diameter of the washer.

[0014] Preferably, a groove is provided on the outer periphery of the other end of the mounting shaft, and the groove is fitted with an elastic retaining ring for installation.

[0015] Preferably, the movable frame is provided with vertically symmetrical ear plates on both sides, and the two ends of the mounting shaft are vertically connected to the ear plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting guide rollers to support the descending corner conveyor belt of the cigarette storage device, it is possible to adjust the tension of the conveyor belt in real time. Furthermore, the movable frame and the mounting frame are connected by springs, which can automatically compress and rebound according to the tension of the conveyor belt. This allows the device to achieve flexible automatic fine adjustment under the action of the springs, thus realizing flexible tensioning of the conveyor belt. This ensures that the conveyor belt enters its guide groove smoothly, increasing the service life of the conveyor belt itself and its guide groove. 2. By rotating the nut, the supporting force of the guide roller on the conveyor belt can be adjusted, so that the conveyor belt is tensioned to a suitable position and friction between it and the upper or lower edge of the guide groove can be avoided. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is an overall structural diagram of the tensioning device of this utility model; Figure 2 This is a schematic diagram of the tensioning device of this utility model in an explosive state. Explanation of reference numerals in the attached figures: 1: Mounting frame; 2: Movable frame; 3: Guide roller; 4: Guide rod; 5: Guide hole; 6: Screw; 7: Mounting hole; 8: Spring; 9: Nut; 10: Mounting shaft; 11: Bearing; 12: Washer; 13: Elastic retaining ring. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, 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 utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 , 2As shown, this utility model provides a tensioning device for a cigarette storage conveyor belt, including: a mounting frame 1, a movable frame 2, a guide roller 3, and a mounting shaft 10. The mounting frame 1 is an L-shaped plate, and its side is fixed to a suitable position on the equipment wall panel through fixing holes and fasteners. The movable frame 2 is U-shaped, and the mounting frame 1 is used to position and support the movable frame 2. A vertically extending screw 6 is provided at the bottom of the movable frame 2. The mounting frame 2 has a mounting hole 7, and a spring 8 is sleeved on the outside of the screw 6. The bottom end of the screw 6 passes through the mounting hole 7 and is fastened with a nut 9. Shaft 10 passes through guide roller 3 and its two ends are fixedly connected to the two sides of movable frame 2. The axis of guide roller 3 is perpendicular to the edge of the conveyor belt. The surface of guide roller 3 is smooth and can rotate smoothly relative to movable frame 2. It is used to support the descending corner conveyor belt of cigarette storage. Bearings 11 are installed at both ends of guide roller 3. Through the rotational cooperation between bearings 11 and mounting shaft 10, guide roller 3 can support the conveyor belt. By rotating nut 9 clockwise and counterclockwise, the supporting force of guide roller 3 on the conveyor belt can be adjusted, so that the conveyor belt and the upper and lower edges of the guide groove are kept at a suitable height to avoid friction. In addition, by setting spring 6, flexible automatic fine adjustment can be achieved according to the neutrality of the conveyor belt, realizing flexible tension of the conveyor belt, so that the conveyor belt enters its guide groove smoothly and increases the service life of the conveyor belt and its guide groove.

[0023] In this embodiment, the screw 6 is located at the bottom center of the movable frame 2, and the mounting hole 7 is located in the middle of the mounting frame 1. Parallel guide rods 4 are symmetrically arranged on both sides of the screw 6, and guide holes 5 corresponding to the positions of the guide rods 4 are provided on the mounting frame 1. The screw 6 and mounting hole 7, and the guide rods 4 and guide holes 5, are clearance fits, meaning the outer diameter of the screw 6 is smaller than the inner diameter of the mounting hole 7 on the mounting frame 1, and the outer diameter of the guide rods 4 is smaller than the inner diameter of the guide holes 5. The distance between the movable frame 2 and the mounting frame 1 can be adjusted by rotating the nut 9.

[0024] In this embodiment, the guide roller 3 has mounting grooves at both ends, and two bearings 11 are fitted into the mounting grooves. The guide roller 3 has a through hole in its axial direction that allows the mounting shaft 10 to pass through. A washer 12 is provided between the outer side of the bearing 11 and the end of the mounting shaft 10. The size of the washer 12 is similar to that of the inner ring of the bearing 11.

[0025] One end of the mounting shaft 10 is provided with a shoulder, the diameter of which is larger than the inner diameter of the washer 12, which can block the washer 12. The other end of the mounting shaft 10 is provided with a groove on its outer periphery, which cooperates with the elastic retaining ring 13 to prevent the guide roller 3 from producing obvious axial wobble.

[0026] In this embodiment, the movable frame 2 is provided with vertically symmetrically arranged ear plates on both sides, and the two ends of the mounting shaft 10 are vertically connected to the ear plates.

[0027] The method of using this utility model device is as follows: 1. Assemble the tensioning device and fix it in a suitable position on the equipment wall panel so that the guide roller 3 can support the descending corner conveyor belt of the cigarette storage device; 2. When the conveyor belt is too tight, it will rub against the upper edge of its guide groove. Turning the nut 9 clockwise will weaken the support of the guide roller 3 on the conveyor belt, thus reducing the tension of the conveyor belt and increasing the gap between the conveyor belt and the upper edge of the guide groove. 3. When the conveyor belt is too loose, it will rub against the lower edge of its guide groove. Rotating the nut 9 counterclockwise will strengthen the support of the guide roller 3 on the conveyor belt, that is, the tension of the conveyor belt will increase, which will increase the gap between the conveyor belt and the lower edge of the guide groove. 4. Regularly check the performance of spring 8 to ensure the flexible tension function of the device.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tensioning device for a cigarette storage conveyor belt, characterized in that, include: The device comprises a mounting frame, a movable frame, guide rollers, and a mounting shaft. One side of the mounting frame is fixed to the equipment wall panel. The movable frame is U-shaped and has a vertically extending screw at its bottom. The mounting frame has mounting holes, and a spring is fitted around the outside of the screw. The bottom end of the screw passes through the mounting hole and is fastened with a nut. The mounting shaft passes through the guide rollers, and its two ends are fixedly connected to the two sides of the movable frame. The guide rollers support the descending corner conveyor belt of the cigarette storage unit. Bearings are installed at both ends of the guide rollers, which rotate in conjunction with the mounting shaft.

2. The tensioning device for a cigarette storage conveyor belt according to claim 1, characterized in that, The mounting bracket is an L-shaped plate, and its side is fixed to the equipment wall panel through fixing holes and fasteners.

3. The tensioning device for a cigarette storage conveyor belt according to claim 1, characterized in that, The screw is located at the bottom center of the movable frame, and the mounting hole is located in the middle of the mounting frame.

4. The tensioning device for a cigarette storage conveyor belt according to claim 3, characterized in that, The screw has guide rods symmetrically arranged on both sides, and the mounting bracket has guide holes corresponding to the positions of the guide rods.

5. The tensioning device for a cigarette storage conveyor belt according to claim 4, characterized in that, The screw and the mounting hole, and the guide rod and the guide hole are all clearance fits.

6. The tensioning device for a cigarette storage conveyor belt according to claim 1, characterized in that, The guide roller has mounting grooves at both ends, the bearing is fitted into the mounting grooves, and the guide roller has a through hole in its axial direction that allows the mounting shaft to pass through.

7. The tensioning device for a cigarette storage conveyor belt according to claim 6, characterized in that, A washer is provided between the outer side of the bearing and the end of the mounting shaft.

8. The tensioning device for a cigarette storage conveyor belt according to claim 7, characterized in that, One end of the mounting shaft is provided with a shoulder, the diameter of which is larger than the inner diameter of the washer.

9. The tensioning device for a cigarette storage conveyor belt according to claim 8, characterized in that, The other end of the mounting shaft is provided with a groove, which is used to install an elastic retaining ring.

10. The tensioning device for a cigarette storage conveyor belt according to claim 1, characterized in that, The movable frame has vertically symmetrically arranged ear plates on both sides, and the two ends of the mounting shaft are vertically connected to the ear plates.

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