Screening cylinder capable of being automatically cleaned

Abstract

The utility model belongs to the technical field of tobacco raw material processing equipment, and particularly relates to a screening barrel capable of being automatically cleaned, which comprises a plurality of axially arranged screening rods, a plurality of screening rods and a plurality of screening rods, a plurality of auxiliary rods are arranged between every two adjacent screening rods. Every two adjacent screen rods and every two adjacent auxiliary rods are encircled to form a screen hole; a sliding block is installed on the auxiliary rod in a sliding mode. The utility model aims to solve the problems that strip-shaped holes are easily blocked by tobacco stems and the screening efficiency is influenced due to the structural defects of the existing screening cylinder.

Description

Technical Field

[0001] This utility model belongs to the technical field of tobacco raw material processing equipment, specifically relating to an automatically cleanable screening cylinder. Background Technology

[0002] Tobacco stems are an important raw material for cigarettes, typically accounting for about 25% of the weight of tobacco leaves. In the entire process of making tobacco stems into cigarette shreds, the raw tobacco stems first undergo a screening process. The main purpose is to remove broken stems to improve the quality of subsequent stem shred processing.

[0003] Chinese utility model patent (publication number: CN213001049U) discloses a screening cylinder for a drum-type tobacco stem screening device, which is composed of multiple sets of screen plates consisting of multiple screens, and uses the strip holes on the screens to screen tobacco stems.

[0004] However, in the actual screening process, the strip holes are easily blocked by tobacco stems, affecting the screening efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an automatically cleanable screening cylinder to solve the problem that the strip holes of the existing screening cylinder are easily blocked by tobacco stems due to structural defects, which affects the screening efficiency.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0007] An automatically cleanable screening cylinder includes:

[0008] A plurality of axially arranged screen rods, wherein the plurality of screen rods are evenly distributed circumferentially;

[0009] Several auxiliary rods are provided between two adjacent screen rods;

[0010] The two adjacent screen rods and the two adjacent auxiliary rods together form a screen hole;

[0011] A sliding block is slidably mounted on the auxiliary rod.

[0012] Further specifying, several of the screen rods are parallel to each other.

[0013] This structural design, with the screen rods parallel to each other, makes the screening cylinder cylindrical, which is simple in structure, easy to manufacture, and highly practical.

[0014] Furthermore, the sliding block is spherical.

[0015] This structural design, by setting the sliding block to a spherical shape, can reduce the damage to the tobacco stem caused by the sliding block, making it highly practical.

[0016] Furthermore, the sliding block is ring-shaped.

[0017] This structural design, by setting the sliding block in a ring shape, is simple in structure, easy to manufacture, and has a low cost.

[0018] Furthermore, the sliding block has a through hole, and the inner diameter of the through hole is larger than the diameter of the auxiliary rod.

[0019] This structural design, by opening a through hole in the sliding block and inserting the auxiliary rod through the through hole, completes the sliding installation of the sliding block and the auxiliary rod. The structure is simple, easy to manufacture, and highly practical.

[0020] Furthermore, a protective sleeve is detachably installed inside the through hole of the sliding block, and the hardness coefficient of the protective sleeve is less than that of the secondary rod.

[0021] This structural design uses a sleeve with a lower hardness coefficient to replace the sliding block in contact with the auxiliary rod. This allows the wear of the sleeve to replace the wear between the sliding block and the auxiliary rod. In later maintenance, only the sleeve needs to be replaced, reducing maintenance costs and making it highly practical.

[0022] Furthermore, the inner diameter of the through hole is greater than 1.5 times the diameter of the secondary rod.

[0023] This structural design, by setting the through hole on the sliding block to be more than 1.5 times the size of the auxiliary rod, maximizes the inner diameter of the through hole and avoids the problem of the tobacco stem getting stuck between the sliding block and the auxiliary rod due to an excessively small inner diameter. It is highly practical.

[0024] Furthermore, the secondary rod is described as being in a straight line.

[0025] This structural design, by setting the secondary rod to a straight line, makes the sliding block slide more smoothly on the secondary rod.

[0026] Furthermore, the inner side of the screen rod is provided with an axial lifting plate.

[0027] This structural design, which uses axial lifting plates to move the tobacco stems inside the screening cylinder, can further improve the screening effect and is highly practical.

[0028] The utility model adopting the above technical solution has the following advantages:

[0029] The tobacco stems are sieved by the rotation of the sieve cylinder during use. By changing the position of the auxiliary rod, the sliding block slides along the auxiliary rod under its own gravity, thereby automatically cleaning the sieve stems that are blocking the sieve holes and improving sieve efficiency. Attached Figure Description

[0030] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0031] Figure 1 This is a schematic diagram of the structure of an embodiment of an automatically cleanable screening cylinder according to the present invention;

[0032] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0033] Figure 3 This is a front view of an embodiment of an automatically cleanable screening cylinder according to the present invention.

[0034] The symbols for the main components are explained below:

[0035] Screen rod 1, axial lifting plate 10

[0036] Secondary rod 2, sliding block 3. Detailed Implementation

[0037] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that similar or identical parts are referred to by the same reference numerals in the drawings or description. Implementations not shown or described in the drawings are forms known to those skilled in the art. Furthermore, directional terms mentioned in the embodiments, such as "up," "down," "top," "bottom," "left," "right," "front," and "back," are only for reference to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0038] like Figures 1-3 As shown, the present invention provides an automatically cleanable screening cylinder, comprising:

[0039] Several axially arranged screen rods 1 are evenly distributed circumferentially.

[0040] A screening group is provided between two adjacent screening rods 1, and the screening group includes several auxiliary rods 2;

[0041] The two adjacent screen rods 1 and the two adjacent auxiliary rods 2 together form a screen hole;

[0042] A sliding block 3 is slidably installed on the auxiliary rod 2.

[0043] Several sieve rods 1 are parallel to each other.

[0044] In practice, depending on the actual situation, the screen rods 2 can also be arranged in a conical shape. In this embodiment, the screen rods 1 are parallel to each other, so that the screening cylinder is cylindrical. The structure is simple, easy to manufacture, and highly practical.

[0045] Sliding block 3 is spherical.

[0046] By setting the sliding block 3 to a spherical shape, the damage to the tobacco stem caused by the sliding block 3 can be reduced, making it more practical.

[0047] Sliding block 3 is in the shape of a ring.

[0048] By setting the sliding block 3 to a ring shape, the structure is simple, easy to manufacture, and low in cost.

[0049] The sliding block 3 has a through hole, the inner diameter of which is larger than the diameter of the auxiliary rod 2.

[0050] In practice, depending on the actual situation, an iron ring can be installed on the sliding block 3 and fitted onto the auxiliary rod 2 to achieve a sliding connection between the sliding block 3 and the auxiliary rod 2. In this embodiment, a through hole is opened on the sliding block 3 and the auxiliary rod 3 passes through the through hole to complete the sliding installation of the sliding block 3 and the auxiliary rod 2. The structure is simple, easy to manufacture, and highly practical.

[0051] A protective sleeve is detachably installed inside the through hole of the sliding block 3. The hardness coefficient of the protective sleeve is less than that of the secondary rod 2.

[0052] By using a sleeve with a lower hardness coefficient to replace the sliding block 3 in contact with the auxiliary rod 2, the wear of the sleeve can replace the wear of the sliding block 3 and the auxiliary rod 2. In later maintenance, only the sleeve needs to be replaced, reducing maintenance costs and making it highly practical.

[0053] The inner diameter of the through hole is 1.5 times larger than the diameter of the secondary rod 2. In this embodiment, 1.5 times is preferred.

[0054] In practice, other hole sizes can be selected according to the actual situation, as long as they are larger than the diameter of the auxiliary rod 2. In this embodiment, by setting the through hole on the sliding block 3 to more than 1.5 times that of the auxiliary rod 2, the inner diameter of the through hole is enlarged as much as possible, which can avoid the problem that the tobacco stem is easily stuck between the sliding block 3 and the auxiliary rod 2 due to the inner diameter being too small. This makes it highly practical.

[0055] Secondary rod 2 is in a straight line.

[0056] In practice, depending on the actual situation, the auxiliary rod 2 can be set in an arc shape. In this embodiment, the auxiliary rod 2 is set in a straight line, which makes the sliding block 3 slide more smoothly on the auxiliary rod 2.

[0057] An axial lifting plate 10 is provided on the inner side of the screen rod 1.

[0058] The axial lifting plate 10 drives the tobacco stems inside the screening cylinder, which can further improve the screening effect and has strong practicality.

[0059] In this embodiment, during use, the sieving cylinder is set horizontally or slightly tilted, and then the tobacco stems to be sieved are poured in. The sieving cylinder is rotated, and during the rotation of the sieving cylinder, the tobacco stems tumble continuously, and the broken stems fall out of the sieve holes.

[0060] During this process, as the screening cylinder rotates,

[0061] The change in height between the two ends of the auxiliary rod 2 creates a height difference. Under its own weight, the sliding block 3 slides down from the higher end of the auxiliary rod 2 to the lower end, thereby clearing the screen stalks that are clogging the screen holes and improving screening efficiency.

[0062] The above provides a detailed description of an automatically cleanable screening cylinder provided by this utility model. The specific embodiments are described only to aid in understanding the method and core concept of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An automatically cleanable screening drum characterized by: include: A plurality of axially arranged screen rods (1) are evenly distributed circumferentially; Several auxiliary rods (2) are provided between two adjacent screen rods (1); The two adjacent screen rods (1) and the two adjacent auxiliary rods (2) together form a screen hole; A sliding block (3) is slidably mounted on the auxiliary rod (2).

2. An automatically cleanable screening cylinder according to claim 1, characterized in that: Several of the sieve rods (1) are parallel to each other.

3. An automatically cleanable screening cylinder according to claim 1 wherein: The sliding block (3) is spherical.

4. An automatically cleanable screening cylinder according to claim 1 wherein: The sliding block (3) is ring-shaped.

5. An automatically cleanable screening cylinder according to claim 1 wherein: The sliding block (3) has a through hole, and the inner diameter of the through hole is larger than the diameter of the auxiliary rod (2).

6. An automatically cleanable screening cylinder according to claim 5 wherein: A protective sleeve is detachably installed in the through hole of the sliding block (3), and the hardness coefficient of the protective sleeve is less than that of the secondary rod (2).

7. An automatically cleanable screening cylinder according to claim 5 wherein: The inner diameter of the through hole is 1.5 times larger than the diameter of the secondary rod (2).

8. An automatically cleanable screening cylinder according to claim 1 wherein: The secondary rod (2) is in a straight line shape.

9. An automatically cleanable screening cylinder according to claim 1 wherein: The inner side of the screen rod (1) is provided with an axial lifting plate (10).

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