A screening device for the length and diameter of cigarette rods

Abstract

The present invention relates to the technical field of cigarette quality screening, and discloses a screening device for cigarette length and diameter, which includes a first frame, a bottom plate, a second frame, a diameter detection mechanism, a small-diameter collection box, a diameter-qualified collection box, a large-diameter collection box, a first chute, a length detection mechanism, a short-cigarette collection box, a length-qualified collection box, a long-cigarette collection box and a second chute. The diameter detection mechanism includes a first driving shaft and six first driven shafts. First sprockets are fixedly installed on both the first driving shaft and the six first driven shafts, and a first chain is meshed between the first sprockets. The length detection mechanism includes a screening plate, a second driving shaft and two second driven shafts. The screening plate includes a first screening hole and a second screening hole. The present invention can solve the problems of inaccurate measurement, time-consuming and laborious, and reduced efficiency in batch measurement during mass production.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette quality screening, and particularly relates to a screening device for the length and diameter of cigarette rods. Background Art

[0002] A cigarette, also known as a paper cigarette, a roll-up cigarette, or a cigarette stick, refers to a tobacco product in which cut tobacco is rolled into a strip with cigarette paper. As is well known, in the production of cigarettes, it is necessary to frequently detect whether the diameter and length of cigarette rods are qualified. For a long time, the technical tool for detecting the diameter of cigarette rods in cigarette factories has been a vernier caliper. Generally, the length of the tobacco rod is indirectly measured by the rotation speed of the cigarette paper disk, and the measurement error is about 10%. The detection process mainly relies on manual measurement.

[0003] In the repeated detection of a large number of cigarette rods, such a detection method not only reduces the detection efficiency, but also results in inaccurate detection results due to errors in manual detection. In the mass production of cigarettes, it is necessary to detect not only whether the diameter is qualified, but also the length of the cigarettes. In the prior art, most of the detections are sampling detections of cigarettes, and all are manual detections, which are not only inaccurate in measurement, but also relatively cumbersome, time-consuming and laborious, resulting in a reduction in efficiency during batch detection. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a screening device for the length and diameter of cigarette rods, which solves the problems of inaccurate detection, time-consuming and laborious, and reduced efficiency during batch detection existing in batch production.

[0005] The present invention solves the above technical problems through the following technical means: A screening device for the length and diameter of cigarette rods, comprising a first frame, a bottom plate, and a second frame. The first frame and the second frame are fixedly connected to the bottom plate. A small-diameter collection box, a diameter-qualified collection box, and a large-diameter collection box are sequentially and fixedly connected to the first frame. A diameter detection mechanism is provided on the small-diameter collection box and the diameter-qualified collection box, and the diameter detection mechanism is fixedly connected to the first frame. The diameter detection mechanism includes a first driving shaft and six first driven shafts. One end of the first driving shaft is connected to a first driving motor, and the other end of the first driving shaft is rotatably installed on the first frame. The first driving motor is fixedly installed inside the first frame. Both ends of the six first driven shafts are rotatably installed on the first frame. First sprockets are fixedly installed on the first driving shaft and the six first driven shafts, and a first chain is meshed between the first sprockets. There are six gaps between the first driving shaft and the six first driven shafts. The first three of the six gaps are small-diameter gaps, and the small-diameter collection box is located directly below the small-diameter gaps. The last three of the six gaps are qualified gaps, and the diameter-qualified collection box is located directly below the qualified gaps. The diameter-qualified collection box is provided with a first cigarette rod outlet. The second frame is fixedly connected with a short-cigarette collection box, a length-qualified collection box, and a long-cigarette collection box. A length detection mechanism is provided above the short-cigarette collection box and the length-qualified collection box, and the length detection mechanism is fixedly connected to the second frame. The length detection mechanism includes a screening plate, a second driving shaft, and two second driven shafts. One end of the second driving shaft is connected to a second driving motor, and the other end of the second driving shaft is rotatably installed on the second frame. The second driving motor is fixedly installed inside the second frame. Both ends of the two second driven shafts are rotatably installed on the second frame. Second sprockets are fixedly installed on the second driving shaft and the two second driven shafts, and a second chain is meshed between the second sprockets. The screening plate is fixedly connected to the second frame. The screening plate includes a first screening hole and a second screening hole. The short-cigarette collection box is located directly below the first screening hole, and the length-qualified collection box is located directly below the second screening hole. The length-qualified collection box is provided with a second cigarette rod outlet. The cigarette rod outlet end of the diameter-qualified collection box is fixedly connected with a first chute. The first chute is a groove with an inclined slope, and the other end of the first chute is fixedly connected to the screening plate. The screening plate in the length detection mechanism is in an inclined state, and the combination of the second driving shaft, the second driving motor, the second sprockets, the second chain, and the two second driven shafts is also in an inclined state, with the same inclination angle as the screening plate. The cigarette rod outlet end of the diameter-qualified collection box is fixedly connected with a second chute. The second chute is a horizontal chute and is fixedly connected to the bottom plate.

[0006] Further, the lower end of the diameter - qualified collection box is provided with an arc - shaped curved surface, and the lower end of the length - qualified collection box is provided with an arc - shaped curved surface. After being screened, the cigarettes with qualified diameters can smoothly roll out from the diameter - qualified collection box and enter the next process. After being screened, the cigarettes with qualified lengths can smoothly roll out from the length - qualified collection box and enter the next process.

[0007] Further, the number of cigarette outlets at the first cigarette outlet is one, the height of the cigarette outlet is three times the qualified radius of the cigarette, the number of cigarette outlets at the second cigarette outlet is one, and the height of the cigarette outlet is three times the qualified radius of the cigarette.

[0008] Further, the openings of the short - cigarette collection box, the length - qualified collection box, and the long - cigarette collection box are inclined and matched with the screening plate, so that the screened cigarettes can smoothly enter the short - cigarette collection box, the length - qualified collection box, and the long - cigarette collection box from the screening plate for screening the lengths of the cigarettes.

[0009] Further, the first screening holes include three first rectangular through - holes, and the second screening holes include three second rectangular through - holes.

[0010] Further, the lower end of the inclined part of the screening plate is the cigarette reference plane, and there is a reserved dimension between the first screening holes and the second screening holes and the reference plane.

[0011] Further, touch - sensitive alarms are provided at the ports of the large - diameter collection box, the small - diameter collection box, the short - cigarette collection box, and the long - cigarette collection box.

[0012] Advantages of the present invention:

[0013] (1) In the diameter - detection mechanism of the present invention, the first gaps and the second gaps formed by the first driving shaft and the six first driven shafts can accurately screen the diameters of the cigarettes. After the screening is completed, there are a small - diameter collection box, a diameter - qualified collection box, and a large - diameter collection box for screening the diameters of the cigarettes, thus solving the problem of inaccurate screening of cigarette diameters.

[0014] (2) In the length - detection mechanism of the present invention, the first screening holes and the second screening holes, together with the cigarette reference plane at the lower end of the inclined part of the screening plate, cooperate to complete the screening of the lengths of the cigarettes. After the screening is completed, there are a short - cigarette collection box, a length - qualified collection box, and a long - cigarette collection box for screening the lengths of the cigarettes, solving the problem of inaccurate screening of cigarette lengths.

[0015] (3) The present invention realizes the batch screening of the lengths and diameters of the cigarettes by providing multiple first gaps, second gaps, first screening holes, and second screening holes. The provided first chute and second chute enable the cigarettes to be screened by rolling without taking much time and effort, improving the production efficiency of batch detection. Description of the Drawings

[0016] Figure 1 It is a schematic external structure diagram of a screening device for the length and diameter of cigarette sticks according to the present invention;

[0017] Figure 2 It is a schematic internal structure diagram of a screening device for the length and diameter of cigarette sticks according to the present invention;

[0018] Figure 3 It is a partial enlarged view of the diameter detection mechanism of the present invention;

[0019] Figure 4 It is a partial enlarged view of the length detection mechanism of the present invention;

[0020] Figure 5 It is a partial schematic diagram of the first sprocket in the diameter detection mechanism of the present invention;

[0021] Figure 6 It is a partial schematic diagram of the second sprocket in the length detection mechanism of the present invention;

[0022] Among them, the first frame 1, the bottom plate 2, the second frame 3, the diameter detection mechanism 4, the small-diameter collection box 5, the diameter-qualified collection box 6, the large-diameter collection box 7, the first chute 8, the length detection mechanism 9, the short-cigarette collection box 10, the length-qualified collection box 11, the long-cigarette collection box 12, the second chute 13, the first driving shaft 14, the first driven shaft 15, the first driving motor 16, the first sprocket 17, the first chain 18, the small-diameter gap 19, the qualified gap 20, the first cigarette stick outlet 21, the screening plate 22, the second driving shaft 23, the second driven shaft 24, the second driving motor 25, the second sprocket 26, the second chain 27, the first screening hole 28, the second screening hole 29, the second cigarette stick outlet 30, the touch induction alarm 31, and the reserved dimension 32. Specific embodiments

[0023] Such as Figure 1-6As shown in the figure, a screening device for the length and diameter of cigarette sticks according to the present invention includes a first frame 1, a bottom plate 2, and a second frame 3. The first frame 1 and the second frame 3 are fixedly connected to the bottom plate 2. A small-diameter collection box 5, a diameter-qualified collection box 6, and a large-diameter collection box 7 are successively fixedly connected to the first frame 1. A diameter detection mechanism 4 is provided on the small-diameter collection box 5 and the diameter-qualified collection box 6, and the diameter detection mechanism 4 is fixedly connected to the first frame 1. The diameter detection mechanism 4 includes a first driving shaft 14 and six first driven shafts 15. One end of the first driving shaft 14 is connected to a first driving motor 16, and the other end of the first driving shaft 14 is rotatably installed on the first frame 1. The first driving motor 16 is fixedly installed inside the first frame 1. Both ends of the six first driven shafts 15 are rotatably installed on the first frame 1. First sprockets 17 are fixedly installed on the first driving shaft 14 and the six first driven shafts 15. A first chain 18 is meshed between the first sprockets 17. There are six gaps between the first driving shaft 14 and the six first driven shafts 15. The first three of the six gaps are small-diameter gaps 19, and the small-diameter collection box 5 is located directly below the small-diameter gap 19. The last three of the six gaps are qualified gaps 20, and the diameter-qualified collection box 6 is located directly below the qualified gap 20. The diameter-qualified collection box 6 is provided with a first cigarette stick outlet 21. The lower end of the diameter-qualified collection box 6 has an arc-shaped surface, and the lower end of the length-qualified collection box 11 has an arc-shaped surface. The number of cigarette stick outlets at the first cigarette stick outlet 21 is one, and the height of the cigarette stick outlet is three times the qualified radius of the cigarette stick;

[0024] The second rack 3 is fixedly connected with a short cigarette collection box 10, a length qualified collection box 11 and a long cigarette collection box 12. Above the short cigarette collection box 10 and the length qualified collection box 11, there is a length detection mechanism 9, and the length detection mechanism 9 is fixedly connected to the second rack 3. The length detection mechanism 9 includes a screening plate 22, a second driving shaft 23 and two second driven shafts 24. One end of the second driving shaft 23 is connected with a second driving motor 25, and the other end of the second driving shaft 23 is rotatably installed on the second rack 3. The second driving motor 25 is fixedly installed inside the second rack 3. Both ends of the two second driven shafts 24 are rotatably installed on the second rack 3. Second sprockets 26 are fixedly installed on the second driving shaft 23 and the two second driven shafts 24. A second chain 27 is engaged between the second sprockets 26. The screening plate 22 is fixedly connected to the second rack 3. The lower end of the inclined part of the screening plate 22 is the cigarette reference plane. There is a reserved dimension 32 between the first screening hole 28 and the second screening hole 29 and the reference plane. The screening plate 22 includes the first screening hole 28 and the second screening hole 29. The first screening hole 28 includes three first rectangular through holes, and the second screening hole 29 includes three second rectangular through holes. The short cigarette collection box 10 is located directly below the first screening hole 28, and the length qualified collection box 11 is located directly below the second screening hole 29. The length qualified collection box 11 is provided with a second cigarette outlet 30. The number of cigarette outlets at the second cigarette outlet 30 is one, and the height of the cigarette outlet is three times the qualified radius of the cigarette. The cigarette outlet end of the diameter qualified collection box 6 is fixedly connected with a first chute 8. The first chute 8 is a groove with an inclined slope. The other end of the first chute 8 is fixedly connected to the screening plate 22. In the length detection mechanism 9, the screening plate 22 is in an inclined state, and the combination of the second driving shaft 23, the second driving motor 25, the second sprockets 26, the second chain 27 and the two second driven shafts 24 is also in an inclined state, and the angle is the same as the inclination angle of the screening plate 22. The openings of the short cigarette collection box 10, the length qualified collection box 11 and the long cigarette collection box 12 are inclined to match the screening plate 22, so that the screened cigarettes can smoothly enter the short cigarette collection box 10, the length qualified collection box 11 and the long cigarette collection box 12 from the screening plate 22 for screening the length of the cigarettes. The cigarette outlet end of the diameter qualified collection box 6 is fixedly connected with a second chute 13. The second chute 13 is a horizontal chute and is fixedly connected to the bottom plate 2. Touch induction alarms 31 are provided at the ports of the large diameter collection box 7, the small diameter collection box 5, the short cigarette collection box 10 and the long cigarette collection box 12.

[0025] The usage method of the present invention is as follows:

[0026] Take the cigarette rod diameter as 8 mm, with an allowable error of ±1 mm. Take the length of the small-diameter gap 19 as 7.9 mm, and the length of the qualified gap 20 as 8.1 mm. Take the cigarette rod length as 80 mm, with an allowable error of ±1 mm. Take the reserved dimension 32 at the ends of the first screening hole 28 and the second screening hole 29 as 5 mm. Take the length of the first screening hole 28 as 74 mm, and the length of the second screening hole 29 as 76 mm. After the cigarette rods in batch production are neatly sorted, they enter the diameter detection mechanism 4, entering from the side of the first driving motor 16. The first driving motor 16 drives the first driving shaft 14 and six first driven shafts 15 to rotate through the first chain 18, causing the cigarette rods to roll forward. Cigarette rods passing through the small-diameter gap 19 can cause cigarette rods with a diameter smaller than the qualified cigarette rod diameter to fall into the small-diameter collection box 5. Qualified cigarette rods and large-diameter cigarette rods continue to roll forward. When they reach the qualified gap 20, the qualified cigarette rods fall into the diameter-qualified collection box 6, and cigarette rods with a length greater than the qualified diameter continue to roll forward and fall into the large-diameter collection box 7.

[0027] The cigarette rods that enter the diameter-qualified collection box 6 slide down one by one and enter the first chute 8. The cigarette rods enter the length detection mechanism 9 in a neatly sorted manner. The second driving motor 25 drives the second driving shaft 23 and two second driven shafts 24 to rotate through the second chain 27, causing the cigarette rods to roll forward and enter the screening plate 22. Cigarette rods passing through the first screening hole 28 can cause cigarette rods shorter than the qualified cigarette rod length to fall into the short-cigarette collection box 10. Qualified cigarette rods and cigarette rods with a length greater than the qualified length continue to roll forward. When the cigarette rods pass through the second screening hole 29, the long qualified cigarette rods fall into the length-qualified collection box 11, and cigarette rods with a length greater than the qualified length continue to roll forward and enter the long-cigarette collection box. The cigarette rods that enter the length-qualified collection box 11 slide down one by one and enter the second chute 13. The cigarette rods enter the next process in a neatly sorted manner. If the large-diameter collection box 7, the small-diameter collection box 5, the short-cigarette collection box 10, and the long-cigarette collection box 12 are full, the touch induction alarm 31 reminds the worker to handle the unqualified cigarette rods through an alarm method.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A screening device for the length and diameter of cigarette sticks, characterized in that: It includes a first frame, a bottom plate, and a second frame. The first frame and the second frame are fixedly connected to the bottom plate. A small-diameter collection box, a diameter-qualified collection box, and a large-diameter collection box are fixedly connected in sequence on the first frame. A diameter detection mechanism is provided on the small-diameter collection box and the diameter-qualified collection box, and the diameter detection mechanism is fixedly connected to the first frame; The diameter detection mechanism includes a first driving shaft and six first driven shafts. One end of the first driving shaft is connected to a first driving motor, and the other end of the first driving shaft is rotatably installed on the first frame. The first driving motor is fixedly installed inside the first frame. Both ends of the six first driven shafts are rotatably installed on the first frame. First sprockets are fixedly installed on the first driving shaft and the six first driven shafts, and a first chain is meshed between the first sprockets; There are six gaps between the first driving shaft and the six first driven shafts. The first three of the six gaps are small-diameter gaps, and the small-diameter collection box is located directly below the small-diameter gaps. The last three of the six gaps are qualified gaps, and the diameter-qualified collection box is located directly below the qualified gaps; The diameter-qualified collection box is provided with a first cigarette outlet. The second frame is fixedly connected with a short-cigarette collection box, a length-qualified collection box, and a long-cigarette collection box. A length detection mechanism is provided above the short-cigarette collection box and the length-qualified collection box, and the length detection mechanism is fixedly connected to the second frame; The length detection mechanism includes a screening plate, a second driving shaft, and two second driven shafts. One end of the second driving shaft is connected to a second driving motor, and the other end of the second driving shaft is rotatably installed on the second frame. The second driving motor is fixedly installed inside the second frame. Both ends of the two second driven shafts are rotatably installed on the second frame. Second sprockets are fixedly installed on the second driving shaft and the two second driven shafts, and a second chain is meshed between the second sprockets. The screening plate is fixedly connected to the second frame; The screening plate includes a first screening hole and a second screening hole. The short-cigarette collection box is located directly below the first screening hole, and the length-qualified collection box is located directly below the second screening hole. The length-qualified collection box is provided with a second cigarette outlet. The cigarette outlet end of the diameter-qualified collection box is fixedly connected with a first chute, and the first chute is a groove with an inclined slope. The other end of the first chute is fixedly connected to the screening plate; In the length detection mechanism, the screening plate is in an inclined state, and the combination of the second driving shaft, the second driving motor, the second sprockets, the second chain, and the two second driven shafts is also in an inclined state, with the same inclination angle as the screening plate. The cigarette outlet end of the diameter-qualified collection box is fixedly connected with a second chute, and the second chute is a horizontal chute and is fixedly connected to the bottom plate; The openings of the short-cigarette collection box, the length-qualified collection box, and the long-cigarette collection box are inclined to match the screening plate.

2. The screening device for the length and diameter of cigarette sticks according to claim 1, characterized in that: The lower end of the diameter-qualified collection box has an arc-shaped surface, and the lower end of the length-qualified collection box has an arc-shaped surface.

3. The screening device for the length and diameter of cigarette sticks according to claim 1, characterized in that: The number of cigarette outlets at the first cigarette outlet is one, and the height of the first cigarette outlet is three times the qualified radius of the cigarette. The number of cigarette outlets at the second cigarette outlet is one, and the height of the second cigarette outlet is three times the qualified radius of the cigarette.

4. The screening device for the length and diameter of cigarette sticks according to claim 1, characterized in that: The first screening holes include three first rectangular through holes, and the second screening holes include three second rectangular through holes.

5. The screening device for the length and diameter of cigarette sticks according to claim 1, characterized in that: The lower end of the inclined part of the screening plate is a cigarette reference surface, and the first screening hole and the second screening hole have a reserved size from the reference surface.

6. The screening device for the length and diameter of cigarette sticks according to claim 1, characterized in that: The ports of the large-diameter collection box, the small-diameter collection box, the short-smoke collection box and the long-smoke collection box are all provided with touch-sensing alarms.

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