Tobacco shred loosening device

Abstract

The utility model discloses a tobacco shred loosening device which comprises an installation frame. The two loosening rollers are rotationally connected to the mounting frame, the two loosening rollers are arranged in parallel and can rotate relatively, a gap is formed between the circumferential surfaces of the two loosening rollers, tobacco shreds can penetrate through the gap, a plurality of comb teeth are arranged on the circumferential surface of each loosening roller at intervals, and the comb teeth are used for loosening the tobacco shreds passing through the gap; the cleaning assembly is arranged on the mounting frame and located on the outer side of at least one loosening roller, cleaning needles are arranged on the cleaning assembly and can move between a first position and a second position in the radial direction of the loosening rollers, and when the cleaning needles move to the first position, the cleaning needles are inserted into gaps between every two adjacent comb teeth; and when the cleaning needles move to the second position, the cleaning needles move to the outside of the gap between every two adjacent comb teeth. Tobacco shreds wound on the loosening roller can be removed, and therefore the loosening effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco processing technical field, especially a cut tobacco loosening device. BACKGROUND

[0002] According to the cigarette production process, the cut tobacco is formed after the tobacco is cut by the tobacco cutter, and the cut tobacco is wound and knotted to form the knot cut tobacco in the subsequent transportation and processing. In order to meet the subsequent cigarette processing requirements, the knot cut tobacco needs to be loosened to a certain extent.

[0003] In the prior art, there are some cut tobacco loosening devices, which use loosening rollers with combs to loosen the knot cut tobacco. Although this can achieve the effect of loosening the knot cut tobacco, it is easy to cause the cut tobacco to be wound on the combs, resulting in the problem of reduced loosening effect. UTILITY MODEL CONTENT

[0004] The utility model discloses a cut tobacco loosening device, which can remove the cut tobacco wound on the combs, thereby improving the loosening effect.

[0005] To solve the above technical problems, the embodiment of the utility model discloses a cut tobacco loosening device, which comprises:

[0006] A mounting frame;

[0007] Two loosening rollers are rotatably connected to the mounting frame, and the two loosening rollers are arranged in parallel and can rotate relative to each other. The circumferential surfaces of the two loosening rollers have a gap, and the cut tobacco can pass through the gap. A plurality of combs are arranged on the circumferential surface of each loosening roller, and each comb is used to loosen the cut tobacco passing through the gap.

[0008] A cleaning assembly is arranged on the mounting frame and located outside at least one loosening roller. The cleaning assembly is provided with a cleaning needle, and the cleaning needle can move along the radial direction of the loosening roller between a first position and a second position. When the cleaning needle moves to the first position, the cleaning needle is inserted into the gap between the adjacent two combs. When the cleaning needle moves to the second position, the cleaning needle moves to the outside of the gap between the adjacent two combs.

[0009] By adopting the above technical scheme, when the two loosening rollers rotate relative to each other, the combs thereon can loosen the knot cut tobacco, and the cleaning needle can remove the cut tobacco wound on the combs, thereby improving the loosening effect of the knot cut tobacco.

[0010] Optionally, the cleaning assembly further comprises:

[0011] A connecting plate extends along the axial direction of the loose roller, and a plurality of cleaning needles are arranged on the connecting plate in sequence along the axial direction of the loose roller.

[0012] An electric push rod is arranged on the mounting frame, and a driving end of the electric push rod is connected to the connecting plate. The electric push rod is used to drive the cleaning needles to move between the first position and the second position.

[0013] A separation plate is arranged between the connecting plate and the loose roller and extends along the axial direction of the loose roller. A plurality of through holes are arranged on the separation plate. The axial lines of the through holes coincide with the axial lines of the cleaning needles, and the diameters of the through holes are equal to the outer diameters of the cleaning needles. The through holes are used for the cleaning needles to pass through. When the cleaning needles are located at the first position, the cleaning needles pass through the through holes. When the cleaning needles are located at the second position, the cleaning needles are separated from the through holes.

[0014] Optionally, the cleaning assembly further comprises:

[0015] A collection box is arranged below the separation plate, and an opening is arranged at the top of the collection box. The tobacco shreds separated by the separation plate can fall into the collection box from the opening.

[0016] Optionally, the cleaning assembly further comprises a plurality of guide sleeves. Each guide sleeve is arranged on the side of the separation plate close to the connecting plate. The positions of the guide sleeves correspond to the positions of the through holes one by one. The axial lines of each guide sleeve coincide with the axial lines of the through holes corresponding to the guide sleeve. The inner diameters of the guide sleeves are equal to the outer diameters of the cleaning needles, and the cleaning needles are inserted into the guide sleeves.

[0017] Optionally, the number of the electric push rods is two, and one electric push rod is connected to each end of the connecting plate.

[0018] Optionally, the cleaning assembly further comprises:

[0019] A positive pressure blowing pipe is arranged above the separation plate, and a plurality of blowing nozzles are connected to the lower part of the positive pressure blowing pipe. Each blowing nozzle is used to blow positive pressure gas to one end of each through hole facing the loose roller.

[0020] Optionally, a plurality of comb tooth groups are arranged on the circumferential surface of the loose roller in sequence along the circumferential direction. Each comb tooth group comprises a plurality of comb teeth arranged in sequence along the axial direction of the loose roller. The minimum distance between two adjacent comb teeth is greater than the diameter of the cleaning needle.

[0021] Optionally, each comb tooth group further comprises a plurality of mounting plates arranged in sequence along the axial direction of the loose roller. Each mounting plate is provided with a plurality of comb teeth arranged in sequence along the axial direction of the loose roller. The mounting plate is detachably connected to the loose roller.

[0022] Optionally, the number of the cleaning assemblies is two. The two cleaning assemblies are arranged on the outer sides of the two loose rollers, respectively. The two cleaning assemblies are used to clean the tobacco shreds wound on the two loose rollers, respectively.

[0023] Optionally, the material of the comb teeth and the cleaning needle is stainless steel. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structure schematic diagram of the loosening roller in the embodiment of the present application is shown.

[0025] Figure 2 A structure schematic diagram of the loosening roller in the embodiment of the present application is shown. Figure 1 A partial enlarged view of the A part in the embodiment of the present application is shown.

[0026] Figure 3 A structure schematic diagram of the loosening roller in the embodiment of the present application is shown.

[0027] Figure 4 A structure schematic diagram of the cleaning assembly in the embodiment of the present application is shown.

[0028] Figure 5 A partial sectional view of the cleaning assembly when the cleaning needle is in the first position in the embodiment of the present application is shown.

[0029] Figure 6 A partial sectional view of the cleaning assembly when the cleaning needle is in the second position in the embodiment of the present application is shown.

[0030] Figure 7 An exploded schematic diagram of the cleaning assembly in the embodiment of the present application is shown.

[0031] Reference signs: 1. mounting frame, 2. loosening roller, 3. gap, 4. comb tooth, 5. cleaning assembly, 6. cleaning needle, 7. connecting plate, 8. electric push rod, 9. separation plate, 10. through hole, 11. collection box, 12. feeding port, 13. guide sleeve, 14. positive pressure blowing pipe, 15. blowing nozzle, 16. comb tooth group, 17. mounting plate. DETAILED DESCRIPTION

[0032] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the description. Although the description of the present application will be introduced in combination with the preferred embodiments, this does not mean that the features of the present application are limited to the embodiments. On the contrary, the purpose of introducing the present application in combination with the embodiments is to cover other options or modifications which can be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be contained in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0033] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0035] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0036] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0038] like Figures 1 to 3 As shown, this utility model discloses a tobacco loosening device, including: a mounting frame 1, two loosening rollers 2, and a cleaning assembly 5. The mounting frame 1 is a housing with a feed inlet 12 at its upper end, and the two loosening rollers 2 are arranged in parallel and rotatably connected within the mounting frame 1. Specifically, the two loosening rollers 2 respectively move along... Figure 1 The two loosening rollers 2 rotate in opposite directions as indicated by R1 and R2. A gap 3 exists between the circumferential surfaces of the two loosening rollers 2, allowing tobacco from the upstream process to enter the gap 3 through the feed inlet 12. Multiple comb teeth 4 are spaced apart on the circumferential surface of each loosening roller 2, each comb tooth 4 used to loosen the tobacco passing through the gap 3. A cleaning assembly 5 is located within the mounting frame 1 and on the outside of at least one loosening roller 2. The cleaning assembly 5 is equipped with cleaning needles 6, which can move along the radial direction of the loosening roller 2 (e.g., ...). Figure 3The cleaning needle 6 moves between a first position and a second position. When the cleaning needle 6 moves to the first position, the cleaning needle 6 is inserted into the gap 3 between the two adjacent comb teeth 4, and under the rotation of the loosening roller 2, the cleaning needle 6 can hook the tobacco wrapped between the two adjacent comb teeth 4. With the rotation of the loosening roller 2, the tobacco hooked on the cleaning needle 6 is pulled off from the comb teeth 4. When the cleaning needle 6 moves to the second position, the cleaning needle 6 moves to the outside of the gap between the two adjacent comb teeth 4 to drive the tobacco to move away from the loosening roller 2.

[0039] With the above technical solution, when the two loosening rollers 2 rotate relative to each other, the comb teeth 4 on the loosening rollers 2 can loosen the bunched tobacco, and the cleaning needle 6 can remove the tobacco wrapped on the comb teeth 4, thereby improving the loosening effect of the bunched tobacco.

[0040] Optionally, as shown in Figures 3 to 6 , the cleaning assembly 5 further comprises a connecting plate 7, an electric push rod 8 and a separation plate 9. The connecting plate 7 extends along the axial direction of the loosening roller 2, and the connecting plate 7 is provided with a plurality of cleaning needles 6 arranged at equal intervals along the axial line (as shown in Figure 3 the Y direction) of the loosening roller 2. The electric push rod 8 is arranged on the mounting frame 1, the driving end of the electric push rod 8 is connected with the connecting plate 7, and the electric push rod 8 is used to drive the cleaning needle 6 to reciprocate between the first position and the second position. Through the multiple reciprocations of the cleaning needle 6, the tobacco wrapped on the loosening roller 2 is cleaned. The separation plate 9 is located between the connecting plate 7 and the loosening roller 2 and extends along the axial direction of the loosening roller 2. The separation plate 9 is provided with a plurality of through holes 10, the axial line of the through hole 10 coincides with the axial line of the cleaning needle 6, and the diameter of the through hole 10 is equal to the outer diameter of the cleaning needle 6. The through hole 10 is used for the cleaning needle 6 to pass through. When the cleaning needle 6 is located at the first position, the cleaning needle 6 penetrates the through hole 10 (as shown in Figure 5 ), and the end of the cleaning needle 6 is inserted into the gap 3 between the two adjacent comb teeth 4. Under the rotation of the loosening roller 2, the cleaning needle 6 can hook the tobacco wrapped between the two adjacent comb teeth 4 and pull it off from the comb teeth 4. When the cleaning needle 6 is located at the second position, the cleaning needle 6 is separated from the through hole 10 (as shown in Figure 6 ), but the tobacco on the cleaning needle 6 cannot pass through the through hole 10 and is blocked outside the end of the through hole 10 close to the loosening roller 2, thereby cleaning the tobacco from the cleaning needle 6.

[0041] Optionally, as shown in Figure 4 and Figure 7 , the cleaning assembly 5 further comprises a collection box 11 arranged below the separation plate 9. The top of the collection box 11 is provided with an opening (not shown in the figure), and the tobacco blocked by the separation plate 9 can fall into the collection box 11 from the opening, which is convenient for subsequent centralized processing.

[0042] Optionally, as shown in Figures 5 to 7As shown, the cleaning assembly 5 further comprises a plurality of guide sleeves 13, each of which is arranged on the side of the separation plate 9 close to the connecting plate 7, the position of each guide sleeve 13 corresponds to the position of each through hole 10, and the axis of each guide sleeve 13 coincides with the axis of the corresponding through hole 10. The inner diameter of the guide sleeve 13 is equal to the outer diameter of the cleaning needle 6, and the cleaning needle 6 is inserted into the guide sleeve 13.

[0043] With the above technical scheme, the guide sleeve 13 can assist the cleaning needle 6 to be smoothly inserted along the through hole 10.

[0044] Optionally, as shown in the drawings, Figure 4 The number of the electric push rods 8 is two, and one electric push rod 8 is connected to each end of the connecting plate 7. The two electric push rods 8 work simultaneously to make the two ends of the connecting plate 7 act simultaneously, preventing the phenomenon of imbalance of the two ends of the connecting plate 7.

[0045] Optionally, as shown in the drawings, Figure 7 The cleaning assembly 5 further comprises a positive pressure blowing pipe 14 arranged above the separation plate 9. A plurality of blow nozzles 15 are communicated below the positive pressure blowing pipe 14. The blow nozzles 15 are used to blow positive pressure gas to the end of each through hole 10 facing the loosening roller 2, so that the tobacco separated by the separation plate 9 falls into the collection box 11 quickly, preventing the tobacco from staying at the end of the through hole 10 close to the loosening roller 2 and affecting the normal work of the cleaning needle 6 next time.

[0046] Optionally, as shown in the drawings, Figure 1 and Figure 2 The circumferential surface of the loosening roller 2 is circumferentially spaced apart by a plurality of comb tooth groups 16. Each comb tooth group 16 comprises a plurality of comb teeth 4 arranged along the axial direction of the loosening roller 2. The minimum distance between adjacent two comb teeth 4 is greater than the diameter of the cleaning needle 6, so that the cleaning needle 6 can be smoothly inserted into the gap between the comb teeth 4. Further, the number of comb teeth 4 in a single comb tooth group 16 is equal to the number of cleaning needles 6, so that the tobacco wrapped between any two comb teeth 4 can be cleaned.

[0047] Further, the applicant has found that in the existing loosening device, when one or several comb teeth 4 are damaged, the entire comb tooth group 16 needs to be replaced, which causes long maintenance time and high cost.

[0048] As shown in the drawings, Figure 2 The tobacco loosening device disclosed by the present application further comprises a plurality of mounting plates 17 arranged along the axial direction of the loosening roller in sequence. Each mounting plate 17 is provided with a plurality of comb teeth 4 arranged along the axial direction of the loosening roller 2 in sequence. The mounting plate 17 is detachably connected to the loosening roller 2. Specifically, in this embodiment, three comb teeth 4 are arranged on each mounting plate 17. In other embodiments, the number of comb teeth 4 on a single mounting plate 17 can be set according to actual conditions.

[0049] By using the above technical scheme, when one or several of the comb teeth 4 are damaged, the mounting plate 17 on which the comb teeth 4 are arranged can be disassembled, then the new comb teeth 4 are replaced, and then the mounting plate 17 is mounted on the loose roller 2, so that compared with replacing the entire comb set 16, time can be saved and maintenance cost can be reduced.

[0050] Optionally, as shown in Figure 3 The number of the cleaning assemblies 5 is two, and the two cleaning assemblies 5 are respectively arranged outside the two loose rollers 2, and the two cleaning assemblies 5 are respectively used for cleaning the tobacco wrapped on the two loose rollers 2.

[0051] Optionally, the materials of the comb teeth 4 and the cleaning needles 6 are stainless steel. Since the tobacco contains a certain amount of water, the stainless steel material is used to manufacture the comb teeth 4 and the cleaning needles 6, so that the corrosion of the comb teeth 4 and the cleaning needles 6 can be prevented, and the service life of the comb teeth 4 and the cleaning needles 6 can be improved.

[0052] Although the utility model has been illustrated and described by referring to certain preferred embodiments of the utility model, it should be understood by those skilled in the art that the above content is further detailed description of the utility model in combination with specific embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. Those skilled in the art can make various changes in form and details, including making a number of simple derivations or replacements, without departing from the spirit and scope of the utility model.

Claims

1. A tobacco loosening device, characterized in that, include: Mounting rack; Two loosening rollers are rotatably connected to the mounting frame. The two loosening rollers are arranged in parallel and can rotate relative to each other. There is a gap between the circumferential surfaces of the two loosening rollers, through which the tobacco can pass. Each loosening roller has a plurality of comb teeth spaced apart on its circumferential surface. Each comb tooth is used to loosen the tobacco passing through the gap. A cleaning assembly is disposed on the mounting frame and located outside at least one of the loosening rollers. The cleaning assembly is provided with cleaning needles that are movable radially along the loosening rollers between a first position and a second position. When the cleaning needle moves to the first position, it is inserted into the gap between two adjacent comb teeth. When the cleaning needle moves to the second position, it moves to the outside of the gap between two adjacent comb teeth.

2. The tobacco loosening device as described in claim 1, characterized in that, The cleaning component also includes: A connecting plate extends along the axial direction of the loosening roller, and the connecting plate is provided with a plurality of cleaning needles arranged at intervals along the axis of the loosening roller; An electric push rod is mounted on the mounting bracket. The drive end of the electric push rod is connected to the connecting plate. The electric push rod is used to drive the cleaning needle to move between the first position and the second position. A separating plate is located between the connecting plate and the loosening roller and extends along the axial direction of the loosening roller. The separating plate is provided with a plurality of through holes, the axis of which coincides with the axis of the cleaning needle and the diameter of which is equal to the outer diameter of the cleaning needle. The through holes are used for the cleaning needle to pass through. When the cleaning needle is in the first position, the cleaning needle passes through the through hole. When the cleaning needle is in the second position, the cleaning needle is withdrawn from the through hole.

3. The tobacco loosening device as described in claim 2, characterized in that, The cleaning component also includes: A collection box is located below the separation plate. The top of the collection box has an opening, through which tobacco strands blocked by the separation plate can fall into the collection box.

4. The tobacco loosening device as described in claim 3, characterized in that, The cleaning assembly also includes multiple guide sleeves, each of which is located on the side of the separation plate near the connecting plate. The position of each guide sleeve corresponds one-to-one with the position of each through hole, and the axis of each guide sleeve coincides with the axis of the corresponding through hole. The inner diameter of the guide sleeve is equal to the outer diameter of the cleaning needle, and the cleaning needle is inserted into the guide sleeve.

5. The tobacco loosening device as described in claim 4, characterized in that, There are two electric push rods, and one electric push rod is connected to each end of the connecting plate.

6. The tobacco loosening device as described in claim 2, characterized in that, The cleaning component also includes: A positive pressure blowing pipe is provided above the separation plate, and a plurality of nozzles are connected to the lower part of the positive pressure blowing pipe. Each nozzle is used to blow positive pressure gas to the end of each through hole facing the loosening roller.

7. The tobacco loosening device as described in claim 1, characterized in that, The loosening roller has multiple comb tooth groups spaced circumferentially on its circumferential surface. Each comb tooth group includes multiple comb teeth spaced axially along the loosening roller. The minimum distance between two adjacent comb teeth is greater than the diameter of the cleaning needle.

8. The tobacco loosening device as described in claim 7, characterized in that, The comb tooth assembly also includes a plurality of mounting plates arranged sequentially along the axial direction of the loosening roller. Each mounting plate is provided with a plurality of comb teeth arranged at intervals along the axial direction of the loosening roller. The mounting plate is detachably connected to the loosening roller.

9. The tobacco loosening device as described in claim 1, characterized in that, The number of cleaning components is two, and the two cleaning components are respectively located on the outside of the two loosening rollers. The two cleaning components are used to clean the tobacco shreds wrapped on the two loosening rollers.

10. The tobacco loosening device as described in claim 1, characterized in that, Both the comb teeth and the cleaning needles are made of stainless steel.

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