A tobacco leaf spreading tool for foreign object detection

Abstract

The utility model belongs to tobacco leaf spreading tool technical field especially for a kind of tobacco leaf spreading tool for foreign matter detection, including gantry installed in the top of tobacco conveyer belt, the two sides of the middle part of gantry top end are movably embedded with frame type lifting frame through annular guide slot, the bottom of frame type lifting frame is rotatably connected with rectangular frame by hinging mechanism, the middle part of rectangular frame inner cavity is rotatably connected with two brush rollers and a magnetic steel roller, the magnetic steel roller and two brush rollers are mutually parallel, and the magnetic steel roller is located between two brush rollers. The utility model is provided with the top surface of hinging mechanism connection rectangular frame and the one end of electric push rod hinged frame type lifting frame, and electric push rod makes rectangular frame and brush roller and magnetic steel roller deflect, so that brush roller and magnetic steel roller meet and contact bulky massy tobacco leaf to spread it, and setting lifting motor drives rectangular frame, brush roller and magnetic steel roller to lift through transmission screw rod and transmission nut, to control the thickness of tobacco spreading.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, specifically to a tobacco leaf thinning tool for foreign object detection. Background Technology

[0002] A tobacco leaf thinning tool is a device used during tobacco leaf baking and conveying to process piled or clump-shaped tobacco leaves, ensuring their uniform transport. Patent CN204811997U proposes a tobacco leaf thinning and impurity removal device, including a feeding belt and a roller screen. The feeding end of the feeding belt is located below the discharge port of the rehumidification cylinder, and the discharge end of the feeding belt is connected to one end of the roller screen, which is covered by a roller screen cover. The roller screen includes multiple rolling shafts perpendicular to the running direction of the feeding belt and hollow pentagonal columns fitted on the rolling shafts. When the feeding belt thins the incoming material, it simultaneously feeds the thinned material into the roller screen. Loose tobacco leaves pass through the gaps between the rotating pentagonal columns of the roller screen, while large pieces of material are moved to one end by the rolling shafts and discharged from the end. This can separate tobacco clumps that are not fully loosened in the rehumidified material, making subsequent feeding more thorough and ensuring feeding accuracy. According to the analysis, this tobacco leaf thinning and impurity removal device has the following shortcomings: First, this tobacco leaf thinning and impurity removal device cannot thin out large clumps or blocks of tobacco, but can only divert them; Second, this tobacco leaf thinning and impurity removal device cannot control the thickness of the tobacco leaf thinning. Utility Model Content

[0003] The purpose of this invention is to provide a tobacco leaf thinning tool for foreign object detection, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A tobacco leaf thinning tool for foreign object detection includes a gantry frame installed on top of a tobacco leaf conveyor belt. A frame-shaped lifting frame is movably fitted onto both sides of the top center of the gantry frame via annular guide grooves. A rectangular frame is rotatably connected to the bottom end of the frame-shaped lifting frame via a hinge mechanism. Two brush rollers and a magnetic roller are rotatably connected to the center of the inner cavity of the rectangular frame. The magnetic roller is parallel to the two brush rollers and is located between them. One end of each brush roller and magnetic roller extends through the side wall of the rectangular frame and is fixedly connected to a sprocket. A reduction motor is fixedly connected to one side of the top of the rectangular frame. The output shaft of the reduction motor is simultaneously connected to the brush rollers and the magnetic roller via a chain and a sprocket.

[0006] Furthermore, a lifting motor is fixedly connected to the top of the gantry frame, a transmission screw is fixedly connected to the output shaft of the lifting motor, and a transmission nut is fixedly connected to the top of the frame-type lifting frame, with the transmission screw and transmission nut being fitted and screwed together.

[0007] Furthermore, an electric push rod is hinged to the bottom end of the frame-shaped lifting frame, and the telescopic shaft of the electric push rod is hinged to one end of the top surface of the rectangular frame.

[0008] Furthermore, elastic telescopic rods are fixedly connected to both sides of the top of the gantry frame, and the telescopic parts of the two elastic telescopic rods are fixedly connected to both sides of the top of the frame-shaped lifting frame.

[0009] Furthermore, a scraper is fixedly provided at the top of the inner cavity of the rectangular frame, and the bottom side of the scraper is attached to the horizontal direction of the top side of the magnetic steel roller.

[0010] Furthermore, four tension rollers are rotatably connected to the side wall of the rectangular frame, and the four tension rollers press against the connecting chain.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model features a rectangular frame that rotatably connects a brush roller and a magnetic steel roller. When the brush roller rotates, it can sweep the clumps and blocks of tobacco leaves in contact with it into a thin layer, thus thinning the tobacco leaves. When the magnetic steel roller rotates, it can magnetically attract and remove ferrous metal impurities contained in the tobacco leaves, thereby removing impurities and purifying the tobacco leaves.

[0013] This utility model is equipped with a hinge mechanism connecting the top surface of a rectangular frame and an electric push rod hinged to one end of the rectangular frame. The electric push rod causes the rectangular frame, brush roller, and magnetic steel roller to deflect at an angle so that the brush roller and magnetic steel roller can face-to-face with large-volume clumps and blocks of tobacco leaves to spread them thinly. In addition, a lifting motor is provided to drive the rectangular frame, brush roller, and magnetic steel roller to rise and fall through a transmission screw and a transmission nut in order to control the thickness of the tobacco spreading. Attached Figure Description

[0014] Figure 1 This is a partial cross-sectional view of the main structure of this utility model;

[0015] Figure 2 This is a side sectional view of the main structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the brush roller of this utility model spreading thin, clump-shaped tobacco leaves in an inclined state.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Gantry frame; 2. Annular guide groove; 3. Frame-type lifting frame; 4. Hinge mechanism; 5. Rectangular frame; 6. Brush roller; 7. Magnetic steel roller; 8. Sprocket; 9. Gear motor; 10. Chain; 11. Lifting motor; 12. Transmission screw; 13. Transmission nut; 14. Electric push rod; 15. Elastic telescopic rod; 16. Scraper; 17. Tension roller. Detailed Implementation

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

[0020] like Figures 1 to 3 As shown in the figure, an embodiment of the present invention provides a tobacco leaf thinning tool for foreign object detection, including a gantry frame 1 installed on the top of a tobacco leaf conveyor belt. A frame-shaped lifting frame 3 is movably fitted onto both sides of the top center of the gantry frame 1 via annular guide grooves 2. A rectangular frame 5 is rotatably connected to the bottom end of the frame-shaped lifting frame 3 via a hinge mechanism 4. Two brush rollers 6 and a magnetic steel roller 7 are rotatably connected to the center of the inner cavity of the rectangular frame 5. The magnetic steel roller 7 is parallel to the two brush rollers 6 and is located between the two brush rollers 6. One end of each brush roller 6 and magnetic steel roller 7 extends through the side wall of the rectangular frame 5 and is fixedly connected to a sprocket 8. A reduction motor 9 is fixedly connected to one side of the top of the rectangular frame 5. The output shaft of the reduction motor 9 is simultaneously connected to the brush rollers 6 and the magnetic steel roller 7 via a chain 10 and the sprocket 8.

[0021] In this embodiment, the geared motor 9 is started. The output shaft of the geared motor 9 is connected to the brush roller 6 and the magnetic steel roller 7 through the chain 10 and the sprocket 8, which drives the two to rotate. When the brush roller 6 rotates, it sweeps the tobacco leaves on the top of the tobacco conveyor belt, changing them from an irregular state, such as an undulating shape, to a flat shape, thereby thinning the tobacco leaves. When the magnetic steel roller 7 rotates, it can magnetically attract and remove ferrous metal impurities contained in the tobacco leaves, such as iron wires used for packaging and iron screws, thereby removing impurities and purifying the tobacco leaves.

[0022] The rectangular frame 5 can be deflected at an angle by the hinge mechanism 4, so that the two brush rollers 6 and the magnetic steel roller 7 come into face to face with the large clumps and blocks of tobacco leaves, and gradually peel off and thin them on the surface. This allows for the thinning of tobacco leaf clumps of any shape and size in one go, without the need to sort the large clumps and blocks of tobacco leaves, thus improving the efficiency of tobacco leaf thinning.

[0023] In this application, a lifting motor 11 is fixedly connected to the top of the gantry frame 1, and a transmission screw 12 is fixedly connected to the output shaft of the lifting motor 11. A transmission nut 13 is fixedly connected to the top of the frame-type lifting frame 3, and the transmission screw 12 and the transmission nut 13 are fitted together.

[0024] In this embodiment, a lifting motor 11 is configured to drive the frame-type lifting frame 3, rectangular frame 5, brush roller 6 and magnetic steel roller 7 to rise and fall via a transmission screw 12 and a transmission nut 13, so as to control the thickness of the tobacco spreading.

[0025] In this application, the bottom end of the frame-type lifting frame 3 is hinged to an electric push rod 14, and the telescopic shaft of the electric push rod 14 is hinged to one end of the top surface of the rectangular frame 5.

[0026] like Figure 3 As shown, when the telescopic rod of the electric push rod 14 retracts, it causes one end of the top surface of the hinged rectangular frame 5 to rise. At this time, the two brush rollers 6 and the magnetic steel roller 7 rotating on the bottom surface of the hinged rectangular frame 5 come into face contact with the large-volume clumps and blocks of tobacco leaves, thereby peeling off the tobacco leaves on their surface until the large-volume clumps and blocks of tobacco leaves gradually become smaller and thinner, thus achieving the thinning of the tobacco leaves.

[0027] According to this application, elastic telescopic rods 15 are fixedly connected to both sides of the top of the gantry frame 1, and the telescopic parts of the two elastic telescopic rods 15 are fixedly connected to both sides of the top of the frame-type lifting frame 3.

[0028] The two elastic telescopic rods 15 support the weight of a series of components such as the frame-type lifting frame 3, rectangular frame 5, brush roller 6, magnetic steel roller 7, sprocket 8 and reduction motor 9, so that the lifting motor 11 can easily drive the above components to lift and lower through the transmission screw 12.

[0029] In this application, a scraper 16 is fixedly provided at the top of the inner cavity of the rectangular frame 5, and the bottom side of the scraper 16 is attached to the horizontal direction of the top side of the magnetic steel roller 7.

[0030] After the magnetic roller 7 magnetically attracts ferrous metal impurities, such as iron wires and iron screws used for packaging, the scraper 16 can scrape the magnetically attracted ferrous metal impurities off the surface of the magnetic roller 7 and gather them together, which are then regularly collected and removed by staff.

[0031] In this application, four tension rollers 17 are rotatably connected to the side wall of the rectangular frame 5. The four tension rollers 17 press against the chain 10 so that the chain 10 can effectively drive the brush roller 6 and the magnetic roller 7 to rotate, so as to thin the tobacco leaves and remove iron impurities from the tobacco leaves.

[0032] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tobacco leaf thinning tool for foreign object detection, comprising a gantry frame mounted on top of a tobacco leaf conveyor belt, characterized in that: The top center of the gantry frame is fitted with a frame-shaped lifting frame on both sides via annular guide grooves. The bottom end of the frame-shaped lifting frame is rotatably connected to a rectangular frame via a hinge mechanism. Two brush rollers and one magnetic steel roller are rotatably connected to the center of the inner cavity of the rectangular frame. The magnetic steel roller is parallel to the two brush rollers and is located between the two brush rollers. One end of the brush roller and the magnetic steel roller extends through the side wall of the rectangular frame and is fixedly connected to a sprocket. A reduction motor is fixedly connected to one side of the top of the rectangular frame. The output shaft of the reduction motor is connected to both the brush roller and the magnetic steel roller via a chain and a sprocket.

2. The tobacco leaf thinning tool for foreign object detection according to claim 1, characterized in that: A lifting motor is fixedly connected to the top of the gantry frame, and a transmission screw is fixedly connected to the output shaft of the lifting motor. A transmission nut is fixedly connected to the top of the frame-type lifting frame, and the transmission screw and the transmission nut are fitted together by screw thread.

3. The tobacco leaf thinning tool for foreign object detection according to claim 1, characterized in that: An electric push rod is hinged to the bottom end of the frame-shaped lifting frame, and the telescopic shaft of the electric push rod is hinged to one end of the top surface of the rectangular frame.

4. The tobacco leaf thinning tool for foreign object detection according to claim 1, characterized in that: Elastic telescopic rods are fixedly connected to both sides of the top of the gantry frame, and the telescopic parts of the two elastic telescopic rods are fixedly connected to both sides of the top of the frame-shaped lifting frame.

5. The tobacco leaf thinning tool for foreign object detection according to claim 1, characterized in that: A scraper is fixedly provided at the top of the inner cavity of the rectangular frame, and the bottom side of the scraper is attached to the horizontal direction of the top side of the magnetic steel roller.

6. The tobacco leaf thinning tool for foreign object detection according to claim 1, characterized in that: The sidewall of the rectangular frame is rotatably connected to four tension rollers, which press against the connecting chain.

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