Feeding device for flavoring and charging tobacco

Abstract

The utility model provides a feeding device for tobacco perfuming and charging, which comprises a feeding cylinder, the upper end and the lower end of the feeding cylinder are respectively provided with a feeding port and a discharging port, a first filter screen, a filter hopper and a stirring shaft are sequentially arranged in the feeding cylinder along the material flowing direction, the first filter screen corresponds to the feeding port in position, and the second filter screen corresponds to the discharging port in position. The filter hopper and the stirring shaft are rotationally connected with the feeding cylinder; the aperture of the filter hopper is smaller than that of the first filter screen; the driving mechanism is connected with the filter hopper and used for driving the filter hopper to rotate; the linkage mechanism is connected with the stirring shaft and the filtering hopper and is used for driving the stirring shaft to rotate while the filtering hopper rotates; and the material returning mechanism is arranged above the material outlet and is used for returning the material for secondary stirring. According to the utility model, before sugar and essence enter the pipeline, impurities can be filtered, and pre-mixed and uniformly stirred, so that the impurities are prevented from being brought into the pipeline to block the pipeline, and the perfuming, charging and spraying uniformity of tobacco leaves or tobacco shreds is also improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery technology, and in particular to a feeding device for flavoring and adding ingredients to tobacco. Background Technology

[0002] Flavoring and flavoring play a crucial role in tobacco processing. From the initial addition of flavoring during the loosening and rehydration process, to the addition of flavoring to the leaves before or after shredding, and finally to the flavoring after blending, flavoring and flavoring gradually alter the taste of the tobacco. The operational principle of flavoring and flavoring involves spraying the flavoring liquid evenly and stably onto the tobacco leaves or shreds in a specific ratio according to the incoming material flow rate, in order to meet the technological requirements of tobacco processing.

[0003] Currently, during the flavoring and material addition process in the production workshop, the large pore size and single filtration method of the filter device at the feed inlet allow large particles of impurities mixed in with the sugar and flavoring to pass through the filter and enter the flavoring and material addition pipelines. This can clog the mass flow meter and nozzle outlets, affecting the accuracy of flavoring and material addition. In severe cases, blockages can even cause the pump's first motor frequency to increase, leading to increased pipeline pressure, production shutdowns, and material shortages, ultimately impacting product quality. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a feeding device for flavoring and adding ingredients to tobacco. It can filter impurities and pre-mix and stir the sugar and flavoring before they enter the pipeline, so as to avoid impurities being introduced into the pipeline and causing blockage. It also improves the uniformity of flavoring and adding ingredients to tobacco leaves or tobacco shreds.

[0005] According to an embodiment of this utility model, a feeding device for flavoring and adding ingredients to tobacco includes: a feeding cylinder with an inlet and an outlet at its upper and lower ends, respectively; a first filter screen, a filter hopper, and a stirring shaft arranged sequentially along the material flow direction inside the feeding cylinder; the first filter screen being positioned corresponding to the inlet; the filter hopper and the stirring shaft being rotatably connected to the feeding cylinder; and the filter hopper having a smaller aperture than the first filter screen. A driving mechanism connected to the filter hopper and used to drive the filter hopper to rotate; a linkage mechanism connected to both the stirring shaft and the filter hopper and used to drive the stirring shaft to rotate simultaneously with the rotation of the filter hopper; and a return material mechanism located above the outlet and used to return material for secondary stirring.

[0006] The technical principle of the utility model is as follows: Sugar and flavoring pass through the first filter screen and the filter bucket in the feeding cylinder in sequence. The first filter screen acts as a primary screen to filter out large particles of impurities mixed with the material. The filter bucket can rotate, and under the action of centrifugal force, it can perform a secondary screening of the material after the primary screening, screening out the remaining impurities of slightly smaller size. Finally, the material comes into contact with the stirring shaft and is uniformly mixed by the rotating stirring shaft. Then it enters the pipeline and is sprayed onto the tobacco leaves or tobacco shreds. Under the action of the return material mechanism, the material can be stirred a second time, further avoiding the situation of impurities clogging the pipeline or uneven mixing of materials.

[0007] Furthermore, the drive mechanism includes a first motor, a drive gear, and a driven gear ring. The first motor is fixedly mounted on the outer wall of the feed cylinder. The drive gear is connected to the output shaft of the first motor. The driven gear ring is slidably fitted onto the outer wall of the feed cylinder and is engaged with the drive gear. A corresponding annular opening is provided on the feed cylinder. A flange is fixedly provided on the outer wall of the filter hopper. The flange extends outward through the annular opening and is fixedly connected to the driven gear ring.

[0008] By adopting the above technical solution, the rotation of the driving gear can drive the driven gear ring to rotate, thereby causing the filter bucket to rotate and generating centrifugal force to perform secondary screening of the material and remove impurities.

[0009] Furthermore, the linkage mechanism includes a first helical gear, a rotating shaft, and a second helical gear. The output shaft of the first motor passes laterally into the inside of the feed cylinder and is fixedly connected to the stirring shaft. The first helical gear is fixedly connected to the output shaft of the first motor on the same axis. The rotating shaft is rotatably disposed outside the feed cylinder in the vertical direction. The second helical gear is fixedly connected to the rotating shaft on the same axis, and the first and second helical gears are engaged in transmission. The drive gear is fixedly connected to the rotating shaft on the same axis.

[0010] By adopting the above technical solution, the output shaft of the first motor rotates, driving the stirring shaft to rotate. At the same time, under the action of two helical gears, the rotating shaft and the drive gear rotate, thereby synchronously driving the filter bucket to rotate.

[0011] Furthermore, the feed cylinder has through holes on both sides of the opposite side wall, and a connecting plate is slidably installed in each through hole along the lateral direction. The first filter screen is fixedly connected between the two connecting plates, and one of the connecting plates is connected to the first motor through a sliding mechanism.

[0012] By adopting the above technical solution, the first filter screen can slide laterally back and forth, causing the material it carries to shake, thus improving the effect of the first screening.

[0013] Furthermore, the sliding mechanism includes a lead screw, a transmission wheel, a transmission belt, a ball bearing nut, and a wedge block. The lead screw is rotatably mounted outside the feed cylinder in a vertical direction. There are two transmission wheels, which are respectively mounted on the rotating shaft and the lead screw. The transmission belt is connected between the two transmission wheels. The ball bearing nut is threadedly connected to the lead screw, and the top of the ball bearing nut is fixedly connected to the wedge block through a vertical rod. One end of the inclined surface of the wedge block slides against one of the connecting plates.

[0014] By adopting the above technical solution, under the action of the transmission wheel and transmission belt, the rotating shaft can drive the lead screw to rotate synchronously, thereby driving the ball nut connected to it to move back and forth up and down, so that the wedge block and the connecting plate continuously slide against each other, causing the first filter screen to slide left and right, shaking the material it carries, and improving the filtration effect.

[0015] Furthermore, a second filter screen is inclinedly installed inside the feed cylinder. The second filter screen is located between the stirring shaft and the discharge port, and the pore size of the second filter screen is not larger than the pore size of the filter bucket.

[0016] By adopting the above technical solution, the second filter screen can screen the stirred materials to avoid clumping or uneven mixing, improve the uniformity of material mixing, and further reduce the risk of pipeline blockage.

[0017] Furthermore, the return material mechanism includes a return material cylinder, a second motor, and a screw conveyor. The return material cylinder is installed on the outer wall of the feed cylinder, and a material inlet is provided at the lower end of the return material cylinder, which is connected to the second filter screen. The second motor is fixedly installed on the bottom outer wall of the return material cylinder, and the output shaft of the second motor passes vertically into the interior of the return material cylinder and is fixedly connected to the screw conveyor. A material outlet is provided at the upper end of the return material cylinder, which is connected to the filter hopper.

[0018] By adopting the above technical solution, operators can choose to perform a second stirring of the mixed materials to prevent clumping or uneven mixing and improve the mixing effect.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. A triple screening mechanism consisting of a first filter screen, a filter hopper, and a second filter screen is set up. The first filter screen initially screens out large particles of impurities, while the second filter screen uses centrifugal force to remove smaller particles or impurities that are adhered. The second filter screen is set before the discharge port. If the mixed material clumps or still contains impurities, it can be blocked from entering the subsequent pipeline, which greatly reduces the risk of the pipeline being blocked by impurities and at the same time plays a role in uniformly mixing the materials.

[0021] 2. The material return mechanism can be set up to remix the materials after the first mixing, ensuring that the materials are mixed evenly and improving the spraying effect of flavorings and sugars. Attached Figure Description

[0022] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0023] Figure 1 This is a cross-sectional view of the internal structure of this utility model;

[0024] Figure 2 This is a side view of the present invention.

[0025] In the above figures: 1. Feed cylinder; 2. First filter screen; 3. Filter hopper; 4. Stirring shaft; 5. Drive mechanism; 501. First motor; 502. Drive gear; 503. Gear ring; 504. Flange; 6. Linkage mechanism; 601. First helical gear; 602. Rotating shaft; 603. Second helical gear; 7. Return mechanism; 701. Return cylinder; 702. Second motor; 703. Spiral conveyor rod; 8. Sliding mechanism; 801. Lead screw; 802. Transmission wheel; 803. Transmission belt; 804. Ball bearing nut; 805. Wedge block; 9. Second filter screen; 10. Connecting plate. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable for those skilled in the art that some well-known mechanisms and their descriptions may be omitted in the figures.

[0027] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the figures are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances. In the description of this application, terms such as "first", "second", etc. are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] like Figure 1-2 As shown in the figure, this utility model embodiment proposes a feeding device for adding flavoring and additives to tobacco, including: a feeding cylinder 1, with an inlet and an outlet at the upper and lower ends of the feeding cylinder 1, respectively; a first filter screen 2, a filter hopper 3, and a stirring shaft 4 arranged sequentially along the material flow direction inside the feeding cylinder 1; the first filter screen 2 corresponding to the position of the inlet; the filter hopper 3 and the stirring shaft 4 being rotatably connected to the feeding cylinder 1; and the aperture of the filter hopper 3 being smaller than the aperture of the first filter screen 2; a driving mechanism 5 connected to the filter hopper 3 for driving the filter hopper 3 to rotate; a linkage mechanism 6 connected to both the stirring shaft 4 and the filter hopper 3 for driving the stirring shaft 4 to rotate simultaneously with the rotation of the filter hopper 3; and a return material mechanism 7 located above the outlet for returning material for secondary stirring.

[0029] Furthermore, the drive mechanism 5 includes a first motor 501, a drive gear 502, and a driven gear ring 503. The first motor 501 is fixedly installed on the outer wall of the feed cylinder 1. The drive gear 502 is connected to the output shaft of the first motor 501. The driven gear ring 503 is slidably fitted on the outer wall of the feed cylinder 1, and the driven gear ring 503 is engaged with the drive gear 502 in a transmission. The feed cylinder 1 has a corresponding annular opening. The outer wall of the filter hopper 3 is fixedly provided with a flange 504. The flange 504 extends outward through the annular opening and is fixedly connected to the driven gear ring 503.

[0030] Furthermore, the linkage mechanism 6 includes a first helical gear 601, a rotating shaft 602, and a second helical gear 603. The output shaft of the first motor 501 is inserted laterally into the feed cylinder 1 and then fixedly connected to the stirring shaft 4. The first helical gear 601 is fixedly connected coaxially to the output shaft of the first motor 501. The rotating shaft 602 is rotatably disposed outside the feed cylinder 1 in a vertical direction. The second helical gear 603 is fixedly connected coaxially to the rotating shaft 602, and the first helical gear 601 and the second helical gear 603 are engaged in transmission. The driving gear 502 is fixedly connected coaxially to the rotating shaft 602.

[0031] Furthermore, the feed cylinder 1 has through holes on both sides of the opposite side wall, and a connecting plate 10 is slidably provided in each through hole along the lateral direction. The first filter screen 2 is fixedly connected between the two connecting plates 10, and one of the connecting plates 10 is connected to the first motor 501 through the sliding mechanism 8.

[0032] Furthermore, the sliding mechanism 8 includes a lead screw 801, a transmission wheel 802, a transmission belt 803, a ball bearing nut 804, and a wedge block 805. The lead screw 801 is rotatably mounted outside the feed cylinder 1 in a vertical direction. There are two transmission wheels 802, which are respectively mounted on the rotating shaft 602 and the lead screw 801. The transmission belt 803 is connected between the two transmission wheels 802. The ball bearing nut 804 is threadedly connected to the lead screw 801, and the top of the ball bearing nut 804 is fixedly connected to the wedge block 805 through a vertical rod. One end of the inclined surface of the wedge block 805 slides against one of the connecting plates 10.

[0033] Specifically, the feed inlet of the feed cylinder 1 is provided with a detachable cover plate (not shown in the figure), which can close the internal space of the feed cylinder 1 after the material is fed in. The discharge outlet of the feed cylinder 1 is connected to the subsequent pipeline (not shown in the figure) for easy spraying. In order to ensure that the first filter screen 2 can slide back and forth, elastic elements are provided between the two connecting plates 10 and the outer wall of the feed cylinder 1. When the inclined end face of the wedge block 805 slides against one of the connecting plates 10, the first filter screen 2 slides left and right. At the same time, the elastic element is compressed or stretched, which matches the movement trajectory of the first filter screen 2 and can also assist the first filter screen 2 to reset.

[0034] Furthermore, in order to ensure the installation stability and normal operation of each component, the first motor 501 is installed on the side wall of the feed cylinder 1 away from the return cylinder 7, and a mounting box is fixedly installed on this side. The first motor 501 and the components that are connected to the first motor 501 are all located inside the mounting box. The rotating shaft 602 and the lead screw 801 are rotatably connected to the inner wall of the mounting box. An opening is correspondingly opened on the outer wall of the mounting box to allow the flange 504 to pass through and the driven gear ring 503 to rotate.

[0035] Furthermore, a second filter screen 9 is also inclinedly provided inside the feed cylinder 1. The second filter screen 9 is located between the stirring shaft 4 and the discharge port, and the aperture of the second filter screen 9 is not larger than the aperture of the filter bucket 3.

[0036] Furthermore, the return material mechanism 7 includes a return material cylinder 701, a second motor 702, and a screw conveyor 703. The return material cylinder 701 is installed on the outer wall of the feed cylinder 1, and the lower end of the return material cylinder 701 is provided with a material inlet, which is connected to the second filter screen 9. The second motor 702 is fixedly installed on the bottom outer wall of the return material cylinder 701, and the output shaft of the second motor 702 passes vertically into the interior of the return material cylinder 701 and is fixedly connected to the screw conveyor 703. The upper end of the return material cylinder 701 is provided with a material outlet, which is connected to the filter hopper 3.

[0037] The implementation principle of this application embodiment is as follows: The operator adds the flavoring and sugar to be sprayed into the feed cylinder 1 in sequence, starts the first motor 501, the output shaft of the first motor 501 rotates, driving the first helical gear 601 to rotate, the first helical gear 601 then meshes with and drives the second helical gear 603 to rotate, so that the rotating shaft 602 rotates synchronously, the rotation of the rotating shaft 602 can drive the drive gear 502 to rotate, the drive gear 502 meshes with the driven gear ring 503, and the driven gear 503 can drive the filter bucket 3 inside the feed cylinder 1 to rotate through the flange 504, generating centrifugal force to screen the materials;

[0038] While the rotating shaft 602 is rotating, the lead screw 801 is rotating synchronously due to the action of the transmission wheel 802 and the transmission belt 803. This drives the ball nut 804, which is threadedly connected to it, to slide back and forth in the vertical direction. This causes the wedge block 805 to move up and down to slide against the connecting plate 10. Because of the inclined end face of the wedge block 805, the connecting block 10 is pushed towards the feed cylinder 1 and then moves away from the feed cylinder 1 under the action of the elastic element 11. This back and forth motion causes the first filter screen 2 to slide left and right, which causes the material carried on the first filter screen 2 to shake, thus increasing the initial filtration effect. The material after the initial screening falls into the filter hopper 3 through the filter holes for the second centrifugal filtration. The principle of this part is as described above.

[0039] After two filtrations, the material is screened to remove impurities and falls through the filter holes of the filter hopper 3, where it comes into contact with the stirring shaft 4. The stirring shaft 4 rotates continuously, which can evenly mix the accumulated material and improve the subsequent material spraying accuracy. The mixed material passes through the filter holes of the second filter screen 9 and can then enter the subsequent pipeline.

[0040] At this point, if secondary mixing is required, the operator can start the second motor 702 to drive the screw conveyor 703 to rotate. Because the second filter screen 9 is installed at an angle inside the feed cylinder 1, some material will enter the return cylinder 701 along the second filter screen 9, and then be conveyed by the blades of the screw conveyor 703 back to the filter hopper 3. After centrifugal filtration again, it will be repeatedly mixed by the stirring shaft 4.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A feeding device for flavoring and adding ingredients to tobacco, characterized in that, include: Feed cylinder (1), the upper and lower ends of the feed cylinder (1) are respectively provided with feed inlet and discharge outlet. The feed cylinder (1) is provided with a first filter screen (2), filter bucket (3) and stirring shaft (4) in sequence along the material flow direction. The first filter screen (2) is located corresponding to the feed inlet. The filter bucket (3) and stirring shaft (4) are rotatably connected to the feed cylinder (1). The aperture of the filter bucket (3) is smaller than the aperture of the first filter screen (2). A drive mechanism (5) is connected to the filter bucket (3) and is used to drive the filter bucket (3) to rotate; The linkage mechanism (6) is connected to both the stirring shaft (4) and the filter bucket (3), and is used to drive the stirring shaft (4) to rotate while the filter bucket (3) rotates; The return material mechanism (7) is located above the discharge port and is used to return the material for secondary mixing.

2. The feeding device for flavoring and adding ingredients to tobacco according to claim 1, characterized in that: The drive mechanism (5) includes a first motor (501), a drive gear (502), and a driven gear ring (503). The first motor (501) is fixedly installed on the outer wall of the feed cylinder (1). The drive gear (502) is connected to the output shaft of the first motor (501). The driven gear ring (503) is slidably fitted on the outer wall of the feed cylinder (1) and is engaged with the drive gear (502). The feed cylinder (1) has a corresponding annular opening. The outer wall of the filter bucket (3) is fixedly provided with a flange (504). The flange (504) extends out of the annular opening and is fixedly connected to the driven gear ring (503).

3. A feeding device for flavoring and adding ingredients to tobacco according to claim 2, characterized in that: The linkage mechanism (6) includes a first helical gear (601), a rotating shaft (602), and a second helical gear (603). The output shaft of the first motor (501) is inserted into the feed cylinder (1) laterally and then fixedly connected to the stirring shaft (4). The first helical gear (601) is fixedly connected to the output shaft of the first motor (501) on the same axis. The rotating shaft (602) is rotatably disposed outside the feed cylinder (1) in the vertical direction. The second helical gear (603) is fixedly connected to the rotating shaft (602) on the same axis, and the first helical gear (601) and the second helical gear (603) are engaged in transmission. The driving gear (502) is fixedly connected to the rotating shaft (602) on the same axis.

4. A feeding device for flavoring and adding ingredients to tobacco according to claim 3, characterized in that: The feed cylinder (1) has through holes on both sides of the opposite side wall. Each through hole has a connecting plate (10) that slides laterally. The first filter screen (2) is fixedly connected between the two connecting plates (10), and one of the connecting plates (10) is connected to the first motor (501) through a sliding mechanism (8).

5. A feeding device for flavoring and adding ingredients to tobacco according to claim 4, characterized in that: The sliding mechanism (8) includes a lead screw (801), a transmission wheel (802), a transmission belt (803), a ball nut (804), and a wedge (805). The lead screw (801) is rotatably mounted outside the feed cylinder (1) in the vertical direction. There are two transmission wheels (802), which are respectively mounted on the rotating shaft (602) and the lead screw (801). The transmission belt (803) is connected between the two transmission wheels (802). The ball nut (804) is threadedly connected to the lead screw (801), and the top of the ball nut (804) is fixedly connected to the wedge (805) through a vertical rod. One end of the inclined surface of the wedge (805) slides against one of the connecting plates (10).

6. A feeding device for flavoring and adding ingredients to tobacco according to claim 1, characterized in that: The feed cylinder (1) is also provided with a second filter screen (9) at an incline. The second filter screen (9) is located between the stirring shaft (4) and the discharge port, and the aperture of the second filter screen (9) is not greater than the aperture of the filter bucket (3).

7. A feeding device for flavoring and adding ingredients to tobacco according to claim 6, characterized in that: The return material mechanism (7) includes a return material cylinder (701), a second motor (702), and a screw conveyor (703). The return material cylinder (701) is installed on the outer wall of the feed cylinder (1), and the lower end of the return material cylinder (701) is provided with a material inlet, which is connected to the second filter screen (9). The second motor (702) is fixedly installed on the bottom outer wall of the return material cylinder (701), and the output shaft of the second motor (702) passes through the interior of the return material cylinder (701) in a vertical direction and is fixedly connected to the screw conveyor (703). The upper end of the return material cylinder (701) is provided with a material outlet, which is connected to the filter hopper (3).

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