Rotary net cleaning device for drying cut stems in cigarette factory

Abstract

The rotating net cleaning device comprises a scraper assembly arranged on the inner wall of a rack, the scraper assembly is located below a rotating net and makes contact with the outer net wall of the rotating net, and the two ends of a rotating shaft of the rotating net are rotationally supported on the rack through self-lubricating bearings. And in the rotating process of the rotating net, the cut stems attached to the meshes of the rotating net are scraped and cleaned by the scraper assembly. According to the utility model, the bearings used for rotatably supporting the two ends of the rotating shaft of the rotating net are optimized into the self-lubricating bearings, so that the problem that the rotating net is blocked and damaged due to unsmooth rotation caused by aging and deterioration of traditional bearing lubricating grease is solved; cut stems adhering to the surface of the rotating net can be effectively cleaned in time, net holes are kept unblocked, good corrosion resistance and high-temperature strength are achieved, and the cut stem drying production requirement can be fully met.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco processing equipment, and in particular relates to a rotary net cleaning device used for drying shredded stems in a cigarette factory. Background Art

[0002] Drying of shredded stems is an important process in shredded stem processing. Its process tasks are to improve the elasticity, filling value and combustibility of shredded stems; in addition, it removes part of the moisture in the shredded stems to make the moisture content meet the requirements of the blending process. The moisture content of the shredded stems at the outlet after drying directly affects the moisture content of the finished shredded stems, which is one of the important parameters for measuring the quality of shredded stems. Whether the transfer net components of shredded stem drying operate normally directly affects the mixed air temperature value of shredded stem drying, and further affects the moisture content at the outlet of the shredded stem low-speed airflow dryer.

[0003] The existing tangential separator screen of the stem shred airflow dryer adopts a non-powered operation design. During production, the screen is driven by the hot wind of the circulating fan to rotate. After on-site inspection and analysis, it was found that due to the long-term influence of internal high temperature, the bearing lubricating grease aged and deteriorated, resulting in poor rotation of the dropper screen, easy jamming and damage, and the screen could not rotate normally, causing the hot air temperature to continue to rise beyond the standard range, thereby affecting the control of the outlet temperature and moisture of the stem shreds. During daily lubrication and maintenance of the internal bearings, it is difficult to operate normally due to the limited accessibility of personnel at the location, and there are major safety hazards; at the same time, due to the influence of the poor rotation of the dropper screen, a large amount of stem shreds adhere to the screen mesh during production, causing the screen mesh to be blocked, and it is difficult to maintain after shutdown, and it is easy to cause material blockage, affecting the stable and reliable operation of the equipment. Therefore, it is necessary to make improvements to the above problems. Utility Model Content

[0004] The technical problem solved by the utility model is: to provide a rotary net cleaning device for drying shredded stems in cigarette factories, in which the bearings at both ends of the rotary net shaft for rotating and supporting the rotary net are optimized to self-lubricating bearings, thereby solving the problem of poor rotation, jamming and damage of the rotary net caused by aging and deterioration of the lubricating grease of traditional bearings, and by arranging a scraper assembly on the frame that contacts the outer net wall of the rotary net, the rotary net surface can be effectively and timely cleaned to keep the mesh holes unobstructed, and the device has good corrosion resistance and high-temperature strength, and can fully meet the production needs of drying shredded stems.

[0005] The technical solution adopted by the utility model is as follows: a rotary net cleaning device for drying shredded stems in a cigarette factory comprises a scraper assembly arranged on the inner wall of a frame, the scraper assembly is located below the rotary net and contacts with the outer wall of the rotary net, both ends of the rotary net shaft are rotatably supported on the frame by self-lubricating bearings, and during the rotation of the rotary net, the scraper assembly scrapes and cleans the shredded stems attached to the mesh of the rotary net.

[0006] Among them, the scraper assembly includes a scraper bar and a scraper bar bracket, the two ends of the scraper bar bracket are fixed on the corresponding side inner walls of the frame, and the vertically arranged scraper bar bracket is located below the rotating net, the scraper bar is fixed on the scraper bar bracket, and the long side of the upper end of the scraper bar contacts the outer net wall at the bottom of the rotating net.

[0007] Furthermore, seat plates are fixed on the inner walls on both sides of the frame, and the seat plates are fixedly connected to the ends of the scraper strip brackets.

[0008] Furthermore, the seat plate is an L-shaped plate structure, the vertical edge of the seat plate is fixedly connected to the inner wall of the frame, and a horizontal waist-shaped hole is formed on the horizontal plate of the seat plate, and a vertical waist-shaped hole corresponding to the position of the horizontal waist-shaped hole is formed at the end of the scraper bracket, and bolts passing through the horizontal waist-shaped hole and the vertical waist-shaped hole detachably fix the end of the scraper bracket to the seat plate as a whole.

[0009] Furthermore, the scraper bracket includes a bracket plate and a V-shaped plate with horizontal extension plates on two long sides, the length of the V-shaped plate is smaller than the length of the bracket plate, the V-shaped plate is centrally fixed on the outer plate surface of the bracket plate, and the vertical waist-shaped hole is provided on the end plate surface of the bracket plate.

[0010] Furthermore, the seat plate, the bracket plate and the V-shaped plate are all made of stainless steel.

[0011] Furthermore, the scraper strip is made of food-grade polyethylene material, and the scraper strip and the bending pressure plate located outside the scraper strip are detachably fixed to the edge of the inner plate surface of the bracket plate facing the rotating net direction by a plurality of screws.

[0012] Furthermore, the self-lubricating bearing adopts RCB-JDBS-070 self-lubricating spherical bearing.

[0013] The advantages of this utility model compared with the prior art:

[0014] 1. This technical solution optimizes the bearings at both ends of the rotating shaft used to support the rotating net into self-lubricating bearings, which solves the problem of the rotating net being stuck and damaged due to the aging and deterioration of the traditional bearing lubricating grease. It does not require traditional manual maintenance and avoids unsafe human behavior.

[0015] 2. This technical solution can effectively and timely clean the stems adhering to the surface of the rotating net and keep the mesh unobstructed by arranging a scraper assembly in contact with the outer wall of the rotating net on the frame, and can fully meet the production requirements of stem drying;

[0016] 3. This technical solution has a simple structure and reasonable design. It can not only ensure the cleaning effect but also ensure food contact safety, and has high use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main view of the utility model in use;

[0018] Figure 2 This is a side view of the utility model in use;

[0019] Figure 3 This is a front view of the decoupling part of the scraper assembly of the utility model;

[0020] Figure 4 for Figure 3 Middle AA section view. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiment of the present utility model Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc., are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In this document, the terms "comprises", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further limitations. The elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements.

[0024] Rotary screen cleaning device for drying cut stems in cigarette factories, such as Figure 1-2As shown, it includes a scraper assembly 2 arranged on the inner wall of the frame 1, the scraper assembly 2 is located below the rotating net 3 and contacts the outer net wall of the rotating net 3, and both ends of the rotating shaft of the rotating net 3 are rotatably supported on the frame 1 by self-lubricating bearings 4, and during the rotation of the rotating net 3, the scraper assembly 2 scrapes and cleans the stems attached to the mesh of the rotating net 3; in the above structure, the bearings at both ends of the rotating shaft for rotating and supporting the rotating net 3 are optimized to self-lubricating bearings 4, which solves the problem of poor rotation, jamming and damage of the rotating net due to aging and deterioration of traditional bearing lubricating grease, does not require traditional manual maintenance, and avoids unsafe human behavior;

[0025] like Figure 3-4 As shown, the specific structure of the scraper assembly 2 is as follows: the scraper assembly 2 includes a scraper bar 2-1 and a scraper bar bracket 2-2, both ends of the scraper bar bracket 2-2 are fixed on the inner walls of the corresponding sides of the frame 1, and the vertically arranged scraper bar bracket 2-2 is located below the rotating net 3, the scraper bar 2-1 is fixed on the scraper bar bracket 2-2, and the long side of the upper end of the scraper bar 2-1 is in contact with the outer net wall at the bottom of the rotating net 3; specifically, seat plates 2-3 are fixed on the inner walls on both sides of the frame 1, and the seat plates 2-3 are fixedly connected to the ends of the scraper bar bracket 2-2; specifically, the seat plates 2-3 are L-shaped plate structures, and the vertical sides of the seat plates 2-3 are in contact with the outer net wall at the bottom of the rotating net 3. The inner wall of the frame 1 is fixedly connected, and a horizontal waist-shaped hole 2-4 is formed on the horizontal plate of the seat plate 2-3, and a vertical waist-shaped hole 2-5 corresponding to the position of the horizontal waist-shaped hole 2-4 is formed at the end of the scraper bracket 2-2, and the bolts passing through the horizontal waist-shaped hole 2-4 and the vertical waist-shaped hole 2-5 detachably connect the end of the scraper bracket 2-2 and the seat plate 2-3 as a whole; in the above structure, by arranging a scraper assembly 2 in contact with the outer net wall of the rotating net 3 on the frame 1, the stem shreds adhered to the surface of the rotating net 3 can be effectively and timely cleaned, the mesh holes can be kept unobstructed, it has good corrosion resistance and high temperature strength, and can fully meet the production requirements of stem shred drying;

[0026] like Figure 3-4As shown, the specific structure of the scraper bracket 2-2 is as follows: the scraper bracket 2-2 includes a bracket plate 2-21 and a V-shaped plate 2-22 with horizontally extending plates on two long sides, the length of the V-shaped plate 2-22 is less than the length of the bracket plate 2-21, the V-shaped plate 2-22 is centrally fixed on the outer plate surface of the bracket plate 2-21, and the vertical waist-shaped hole 2-5 is provided on the end plate surface of the bracket plate 2-21. The arrangement of the V-shaped plate 2-22 is conducive to increasing the strength of the scraper bracket 2-2; specifically, the seat plate 2-3, the bracket plate 2-21 and The V-shaped plates 2-22 are all made of 316 stainless steel, that is, food-grade 316 stainless steel, which makes the structure have good corrosion resistance and high-temperature strength, and can fully meet the production requirements of stem shreds drying; specifically, the scraper 2-1 is made of food-grade polyethylene, and the scraper 2-1 and the bending pressure plate 2-6 located on the outside of the scraper 2-1 are detachably fixed to the edge of the inner plate surface of the bracket plate 2-21 toward the rotating net 3 by a plurality of screws. The setting of the bending pressure plate 2-6 improves the strength and reliability of the connection position of the scraper 2-1.

[0027] The self-lubricating bearing 4 adopts the RCB-JDBS-070 self-lubricating spherical bearing to achieve self-lubrication, without the need for traditional manual maintenance, thus avoiding unsafe human behavior.

[0028] The technical solution has a simple structure and a reasonable design, can ensure both the cleaning effect and the food contact safety, and has a high use value.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rotary screen cleaning device for drying cut stems in a cigarette factory, characterized in that: The invention comprises a scraper assembly (2) arranged on the inner wall of a frame (1), the scraper assembly (2) being located below a rotating net (3) and in contact with the outer wall of the rotating net (3), the rotating shaft of the rotating net (3) being rotatably supported on the frame (1) by self-lubricating bearings (4) at both ends, and the scraper assembly (2) scrapes and cleans the stems attached to the mesh of the rotating net (3) during the rotation of the rotating net (3).

2. The rotary screen cleaning device for drying cut stems in a cigarette factory according to claim 1, characterized in that: The scraper assembly (2) comprises a scraper bar (2-1) and a scraper bar bracket (2-2), the two ends of the scraper bar bracket (2-2) are fixed on the inner walls of the corresponding sides of the frame (1), and the vertically arranged scraper bar bracket (2-2) is located below the rotating net (3), the scraper bar (2-1) is fixed on the scraper bar bracket (2-2), and the long side of the upper end of the scraper bar (2-1) is in contact with the outer net wall at the bottom of the rotating net (3).

3. The rotary screen cleaning device for drying cut stems in a cigarette factory according to claim 2, characterized in that: Seat plates (2-3) are fixed on the inner walls on both sides of the frame (1), and the seat plates (2-3) are fixedly connected to the ends of the scraper brackets (2-2).

4. The rotary screen cleaning device for drying cut stems in a cigarette factory according to claim 3, characterized in that: The seat plate (2-3) is an L-shaped plate structure, the vertical side of the seat plate (2-3) is fixedly connected to the inner wall of the frame (1), and a horizontal waist-shaped hole (2-4) is formed on the horizontal plate of the seat plate (2-3), and a vertical waist-shaped hole (2-5) corresponding to the position of the horizontal waist-shaped hole (2-4) is formed at the end of the scraper bracket (2-2), and bolts passing through the horizontal waist-shaped hole (2-4) and the vertical waist-shaped hole (2-5) detachably fix the end of the scraper bracket (2-2) and the seat plate (2-3) into one body.

5. The rotary screen cleaning device for drying cut stems in a cigarette factory according to claim 4, characterized in that: The scraper support (2-2) comprises a support plate (2-21) and a V-shaped plate (2-22) with two long sides provided with horizontal extension plates, the length of the V-shaped plate (2-22) being shorter than the length of the support plate (2-21), the V-shaped plate (2-22) being centrally fixed on the outer plate surface of the support plate (2-21), and a vertical waist-shaped hole (2-5) being provided on the end plate surface of the support plate (2-21).

6. The rotary screen cleaning device for drying cut stems in a cigarette factory according to claim 5, characterized in that: The seat plate (2-3), the bracket plate (2-21) and the V-shaped plate (2-22) are all made of 316 stainless steel.

7. The rotary screen cleaning device for drying cut stems in a cigarette factory according to claim 6, characterized in that: The scraper bar (2-1) is made of food-grade polyethylene material, and the scraper bar (2-1) and the bent pressure plate (2-6) located outside the scraper bar (2-1) are detachably fixed to the edge of the inner plate surface of the support plate (2-21) in the direction of the rotating net (3) by a plurality of screws.

8. The rotary screen cleaning device for drying cut stems in a cigarette factory according to any one of claims 1 to 7, characterized in that: The self-lubricating bearing (4) adopts RCB-JDBS-070 self-lubricating spherical bearing.

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