Tobacco electrostatic impurity removal device

Abstract

The utility model relates to an electrostatic impurity removal device for tobacco, which comprises an air suction pipe, a supporting plate, an electrostatic generation device, an electrostatic nylon belt, a support, supporting side plates, a driven roller, a driving roller, an electrostatic nylon roller, a moving frame, a driven shaft and an electrostatic shaft, the other ends of the two supporting side plates are respectively provided with a driven transverse groove, the driven shaft penetrates through the driven transverse grooves and is sleeved on the driven shaft, the two supporting side plates between the driving roller and the driven roller are respectively provided with a waist groove, the front end and the rear end of the movable frame are fixed on the supporting side plates through fasteners, and the front end and the rear end of the movable frame are respectively provided with a first longitudinal groove. The static shaft penetrates through the first longitudinal groove and is fixed on the moving frame through a fastener, the static nylon roller is sleeved on the static shaft, the static nylon belt sequentially bypasses the driving roller, the driven roller and the static nylon roller, the static generating device is connected with the static shaft through a wire, and an air suction pipe is arranged near one triangular edge of the static nylon belt.

Description

Technical Field

[0001] The utility model relates to an electrostatic impurity removal device, in particular to a tobacco electrostatic impurity removal device. Background Art

[0002] In the production process of the tobacco industry, it is inevitable that there will be impurities in tobacco or tobacco leaves caused by various factors such as manufacturing raw materials, production process, equipment shedding, and human errors. Common tobacco impurities include chicken feathers, plastics, metal impurities, etc. Metal impurities can be removed using metal detectors, and the removal rate is relatively high. As for non-metallic impurities such as chicken feathers and plastics, the current industry commonly uses visual recognition, wind selection and light and heavy screening to remove impurities. Visual recognition is to use a visual camera to take high-speed all-round photos, and then automatically identify the impurities through PLC, and then accurately identify and remove them, with a high removal rate. This principle method also has autonomous learning, but in the case of equipment wear, camera light source loss, camera wear, etc., the rejection rate is greatly affected, and when a camera is worn, it is difficult to determine the cause of the fault; wind selection light and heavy separation is to throw the tobacco into the air and absorb it, and large-mass impurities will fall, but it is ineffective for lightweight impurities such as plastics.

[0003] If non-metallic debris is mixed in the tobacco, there is a possibility that the cigarette making machine and packaging machine will be jammed during the cigarette rolling process, seriously affecting production efficiency. At the same time, if the tobacco industry's finished cigarettes contain debris such as plastic and chicken feathers, the cigarettes will directly affect the smoking experience when they are burned. When non-metallic debris is found in the silk-making process, due to the high degree of mixing of the tobacco, in order to ensure the purity of the product, the whole batch of tobacco is generally sorted manually, and the product will be further broken during the manual sorting process. At the same time, the sorting will cause the smell of tobacco sugar materials to be emitted, affecting the taste of the finished product. While increasing labor costs, it is impossible to ensure the purity of manual sorting. Therefore, in the tobacco industry, the removal of non-metallic debris has always been a difficulty and pain point in the industry, and it is also an inevitable demand for the industry to manufacture homogeneous and high-quality products.

[0004] The tobacco industry currently uses visual recognition and infrared emission impurity removal machines, which are greatly affected by the automatic recognition of cameras and systems. At the same time, different brands of tobacco have different raw material varieties, which results in different raw material qualities, which has a great impact on camera recognition and PLC autonomous learning. In actual use, the rejection rate (single-machine test experiment) generally reaches 60%, and the actual production is slightly lower than this value. The ability to remove light non-metallic debris is also limited.

[0005] Another method of removing impurities in the tobacco industry is light and heavy impurities removal. The principle is to air-dry the tobacco and suck it into the downstream process section under negative pressure, while large-mass impurities fall directly. This method is also not effective in removing light non-metallic impurities.

[0006] The existing tea industry generally uses the principle of electrostatic impurity removal. Fixed impurity removal devices are designed based on this principle, which means that the impurity removal devices can only be used in fixed process positions in production lines. Due to refined processing, the tea processing flow rate is relatively small, generally 100kg / h, which is far less than the production flow rate of 5000-9000kg / h in the tobacco industry. Therefore, the use of various types of tea electrostatic impurity removers cannot meet existing requirements. There are many electrostatic impurity removal devices in the tea industry, but they can all be adapted to small flow rates and are all fixed electrostatic impurity removal. They are not applicable to the tobacco industry where there are large flow rates and hidden dangers of non-metallic debris in each process segment.

[0007] In the tea processing industry, electrostatic impurity removal is a common impurity removal method. Because tea and tobacco have similar physical properties, and there are also non-metallic impurities in the tea, the tea industry generally adds a small flow of tea into the electrostatic impurity removal equipment. Without causing crushing, the electrostatic roller is used to adsorb the non-metallic impurities in the tea. This is a relatively mature impurity removal method. Summary of the invention

[0008] The invention purpose of the present application is to solve the problem of removing non-metallic impurities in various tobacco production process sections in the existing tobacco industry, and to provide a tobacco electrostatic impurity removal device.

[0009] In order to achieve the invention purpose of this application, the utility model adopts the following technical solutions:

[0010] The utility model discloses a tobacco electrostatic impurity removal device, which is installed on the bracket of the second conveyor belt. The first conveyor belt feeds the tobacco into the second conveyor belt. The tobacco electrostatic impurity removal device comprises: an air suction pipe, a support plate, an electrostatic generating device, an electrostatic nylon belt, a bracket, a support side plate, a driven roller, an active roller, an electrostatic nylon roller, a mobile frame, a driven shaft and an electrostatic shaft. A second longitudinal groove is opened on each support plate. Along the second longitudinal groove, four support plates are respectively fixed on two brackets by fasteners. Two support side plates are respectively welded on the four support plates in parallel. Among them, the active roller driven by a motor is installed between one end of two parallel support side plates. A driven transverse groove is opened on the other end of the two support side plates. The driven shaft passes through the above two driven transverse grooves. It moves left and right along the driven transverse groove and is fixed by fasteners. The driven roller is sleeved on the driven shaft. Waist grooves are respectively opened on the two supporting side plates between the active roller and the driven roller. The front and rear ends of the movable frame move left and right along the waist grooves and are fixed to the above-mentioned supporting side plates by fasteners. First longitudinal grooves are respectively opened on the front and rear ends of the movable frame. The electrostatic shaft passes through the above-mentioned two first longitudinal grooves. It moves up and down along the first longitudinal grooves and is fixed to the above-mentioned movable frame by fasteners. The electrostatic nylon roller is sleeved on the electrostatic shaft. The electrostatic nylon belt is an annular nylon belt, which bypasses the active roller, the driven roller and the electrostatic nylon roller in turn. The electrostatic generating device is connected to the electrostatic shaft through a wire. A suction pipe is installed near a triangular side of the electrostatic nylon belt, and the debris stuck to the electrostatic nylon belt is sucked away by the suction pipe.

[0011] The utility model discloses a tobacco electrostatic impurity removal device, wherein: the driven roller, the active roller and the electrostatic nylon roller are parallel to each other, and their axes are respectively parallel to the second conveyor belt.

[0012] The utility model discloses a tobacco electrostatic impurity removal device, wherein: the waist groove and the driven transverse groove are respectively parallel to the second conveyor belt.

[0013] The utility model provides a tobacco electrostatic impurity removal device, wherein: the fasteners are bolts and / or nuts.

[0014] The utility model provides a tobacco electrostatic impurity removal device, wherein: the movable frame is a door frame.

[0015] The utility model discloses a tobacco electrostatic impurity removal device, wherein: the tobacco shreds are thrown toward the first side of the electrostatic nylon belt by the first conveyor belt, and impurities in the tobacco shreds are adsorbed on the first side of the electrostatic nylon belt; the tobacco shreds are continuously conveyed between the second conveyor belt and the electrostatic nylon belt, and impurities in the tobacco shreds are adsorbed on the second side of the electrostatic nylon belt; and the suction pipe is installed near the third side of the electrostatic nylon belt.

[0016] Compared with the traditional visual identification and light and heavy separation methods in the tobacco industry, the tobacco electrostatic impurity removal device of the utility model can effectively remove non-metallic impurities in tobacco materials, has strong pertinence, and is less affected by equipment wear, and can effectively remove impurities at low cost and low manual participation; secondly, compared with common electrostatic impurity removal devices, the utility model has a high degree of integration, occupies a small space, and is integrated and movable, so it can be conveniently used in various process sections of the tobacco industry. Its adjustability, electrostatic adjustment, and electrostatic nylon belt speed adjustment are all highly operational and have a wide matching range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view of the tobacco electrostatic impurity removal device of the utility model. For the sake of clarity, the figure is partially cut away and the air suction pipe is removed;

[0018] Figure 2 For Figure 1 A schematic diagram of the tobacco electrostatic impurity removal device of the utility model cut away at AA.

[0019] exist Figure 1 to Figure 2 Among them, number 1 is the second conveyor belt; number 2 is the suction pipe; number 3 is the driven transverse groove; number 4 is the support plate; number 5 is the electrostatic generating device; number 6 is the electrostatic nylon belt; number 7 is the bracket; number 8 is the waist groove; number 9 is the supporting side plate; number 10 is the driven roller; number 11 is the active roller; number 12 is the electrostatic nylon roller; number 13 is the moving frame; number 14 is the first longitudinal groove; number 15 is the second longitudinal groove; number 16 is the driven shaft; number 17 is the electrostatic shaft; number 18 is the first conveyor belt; number 19 is tobacco. DETAILED DESCRIPTION

[0020] like Figure 1 and Figure 2As shown, the tobacco electrostatic impurity removal device of the utility model is installed on the bracket 7 of the second conveyor belt 1, and the first conveyor belt 18 delivers the tobacco 19 to the second conveyor belt 1. The tobacco electrostatic impurity removal device comprises: an air suction pipe 2, a support plate 4, an electrostatic generating device 5, an electrostatic nylon belt 6, a bracket 7, a support side plate 9, a driven roller 10, an active roller 11, an electrostatic nylon roller 12, a movable frame 13, a driven shaft 16 and an electrostatic shaft 17. A second longitudinal groove 15 is opened on each support plate 4. Along the second longitudinal groove 15, four support plates 4 are respectively fixed to two brackets 7 by fasteners, and two support side plates 9 are respectively welded to the four support plates 4 in parallel. The active roller 11 driven by the motor is installed between one end of two parallel supporting side plates 9, and the other ends of the two supporting side plates 9 are respectively provided with driven transverse grooves 3. The driven shaft 16 passes through the above two driven transverse grooves 3, moves left and right along the driven transverse grooves 3 and is fixed by fasteners. The driven roller 10 is sleeved on the driven shaft 16, and waist grooves 8 are respectively provided on the two supporting side plates 9 between the active roller 11 and the driven roller 10. The front and rear ends of the moving frame 13 move left and right along the waist grooves 8 and are fixed to the above supporting side plates 9 by fasteners. The front and rear ends of the moving frame 13 are respectively provided with first longitudinal grooves 14, and the electrostatic shaft 17 passes through the above two first longitudinal grooves 14, and moves up and down along the first longitudinal grooves 14 and is fixed on the upper side by fasteners. On the movable frame 13, the movable frame 13 is a door frame, the electrostatic nylon roller 12 is mounted on the electrostatic shaft 17, the electrostatic nylon belt 6 is an annular nylon belt, which passes around the active roller 11, the driven roller 10 and the electrostatic nylon roller 12 in turn, the electrostatic generating device 5 is connected to the electrostatic shaft 17 through a wire, the tobacco 19 is thrown to the first side of the electrostatic nylon belt 6 by the first conveyor belt 18, and the debris in the tobacco 19 is adsorbed on the first side of the above-mentioned electrostatic nylon belt 6; the tobacco 19 is continuously transported between the second conveyor belt 1 and the electrostatic nylon belt 6, and the debris in the tobacco 19 is adsorbed on the second side of the above-mentioned electrostatic nylon belt 6; the suction pipe 2 is installed near the third side of the electrostatic nylon belt 6, and the debris stuck on the electrostatic nylon belt 6 is sucked away by the suction pipe 2.

[0021] The driven roller 10, the driving roller 11 and the electrostatic nylon roller 12 are parallel to each other, their axes are respectively parallel to the second conveyor belt 1, and the waist groove 8 and the driven transverse groove 3 are respectively parallel to the second conveyor belt 1. The fasteners are bolts and / or nuts.

[0022] The operating principle of the tobacco electrostatic impurity removal device of the utility model is as follows:

[0023] like Figure 2As shown, the tobacco electrostatic impurity removal device of the utility model is connected to the bracket 7 of the second conveyor belt 18 through bolts and nuts. At the same time, the working surface size of the main device and the contact with the tobacco material can be adjusted by adjusting the waist groove 8, the driven transverse groove 3, the first longitudinal groove 14 and the second longitudinal groove 15. Static electricity is generated by the external electrostatic generating device 5, and the static electricity is transmitted to the electrostatic nylon roller 12 through the wire, so that the electrostatic nylon belt 6 is charged. When the tobacco from the upstream falls into the second conveyor belt 1, its impurities are adsorbed on the electrostatic nylon belt 6 and transported to the suction pipe 2, and the impurities adsorbed on the electrostatic nylon belt 6 are sucked away, thereby completing the removal of impurities. During the downstream belt conveying process, the tobacco is in the opposite direction to the movement direction of the electrostatic nylon belt 6, so that the tobacco can also be adsorbed and removed during the entire conveying process.

[0024] Among them, adjusting the voltage of the static electricity generating device 5 can generate or eliminate static electricity and control its size, which directly affects the adsorption capacity of non-metallic debris; adjusting the waist groove 8, the driven transverse groove 3, the first longitudinal groove 14 and the second longitudinal groove 15 can adjust the inclination angle, area and contact between the working surface of the static electricity nylon roller 12 and the driven roller 10 and the tobacco 19; adjusting the frequency converter selected for the motor can adjust the rotation speed of the static electricity nylon belt 6.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tobacco electrostatic impurity removal device, the tobacco electrostatic impurity removal device is mounted on a bracket (7) of a second conveyor belt (1), a first conveyor belt (18) conveys tobacco shreds (19) to the second conveyor belt (1), and the tobacco electrostatic impurity removal device comprises: A suction pipe (2), a support plate (4), an electrostatic generating device (5), an electrostatic nylon belt (6), a roller (7), a support side plate (9), a driven roller (10), an active roller (11), an electrostatic nylon roller (12), a movable frame (13), a driven shaft (16) and an electrostatic shaft (17), wherein a second longitudinal groove (15) is formed on each support plate (4), and along the second longitudinal groove (15), four support plates (4) are respectively fixed to two brackets (7) by fasteners, and two support side plates (9) are respectively welded to four support plates (4) in parallel, characterized in that: an active roller (11) driven by a motor is installed between one ends of two parallel support side plates (9), and driven transverse grooves (3) are respectively formed at the other ends of the two support side plates (9), and a driven shaft (16) passes through the above two driven transverse grooves (3), moves left and right along the driven transverse grooves (3) and is fixed by fasteners, and the driven roller (10) is sleeved on the driven shaft (16) A waist groove (8) is respectively formed on two supporting side plates (9) between the active roller (11) and the driven roller (10); the front and rear ends of the movable frame (13) move left and right along the waist groove (8) and are fixed to the supporting side plates (9) by fasteners; the front and rear ends of the movable frame (13) are respectively formed with first longitudinal grooves (14); the electrostatic shaft (17) passes through the two first longitudinal grooves (14); it moves up and down along the first longitudinal grooves (14) and is fixed to the supporting side plates (9) by fasteners The electrostatic nylon roller (12) is fixed on the above-mentioned moving frame (13), the electrostatic nylon roller (12) is mounted on the electrostatic shaft (17), the electrostatic nylon belt (6) is an annular nylon belt, which sequentially passes around the active roller (11), the driven roller (10) and the electrostatic nylon roller (12), the electrostatic generating device (5) is connected to the electrostatic shaft (17) through a wire, and a suction pipe (2) is installed near a triangular side of the electrostatic nylon belt (6), and the sundries adhering to the electrostatic nylon belt (6) are sucked away by the suction pipe (2).

2. The tobacco electrostatic impurity removal device according to claim 1, characterized in that: The driven roller (10), the active roller (11) and the electrostatic nylon roller (12) are parallel to each other, and their axes are respectively parallel to the second conveyor belt (1).

3. The tobacco electrostatic impurity removal device according to claim 2, characterized in that: The waist groove (8) and the driven transverse groove (3) are respectively parallel to the second conveyor belt (1).

4. The tobacco electrostatic impurity removal device according to claim 3, characterized in that: The fasteners are bolts and / or nuts.

5. The tobacco electrostatic impurity removal device according to claim 4, characterized in that: The movable frame (13) is a door frame.

6. The tobacco electrostatic impurity removal device according to claim 5, characterized in that: The tobacco shreds (19) are thrown by the first conveyor belt (18) to the first side of the electrostatic nylon belt (6), and the impurities in the tobacco shreds (19) are adsorbed on the first side of the electrostatic nylon belt (6); the tobacco shreds (19) are continuously conveyed between the second conveyor belt (1) and the electrostatic nylon belt (6), and the impurities in the tobacco shreds (19) are adsorbed on the second side of the electrostatic nylon belt (6); the suction pipe (2) is installed near the third side of the electrostatic nylon belt (6).

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