Airflow type cigarette separating device

Abstract

The utility model discloses an airflow type cigarette separating device which comprises a wheel body, an air distribution sleeve, a bearing seat, a rectangular frame and an arc-shaped cover, and the wheel body is fixedly connected with a driving shaft. A plurality of cigarette separating grooves are formed in the wheel body in the circumferential direction; the air distribution sleeve is fixedly arranged in an inner hole of the wheel body; the bearing seat is fixedly arranged in the gas distribution sleeve; an annular cavity is formed between the bearing seat and the air distribution sleeve and serves as a negative pressure air flow space; the driving shaft drives the wheel body to rotate relative to the air distribution sleeve, so that the cigarette adsorption air hole or the cigarette separation air hole is communicated with the negative pressure airflow space; the rectangular frame is movably arranged in the cigarette separating groove; the rollers at the two ends of the rectangular frame are movably arranged in the annular cam grooves of the first end cam and the second end cam respectively; the arc-shaped cover is fixedly arranged on the outer surface of the wheel body. The end face cam is used for driving the rectangular frame to move in the radial direction, and movement of an arc-shaped groove block in an existing airflow type separation device is replaced.

Description

Technical Field

[0001] The utility model relates to cigarette production equipment, in particular to an airflow type cigarette separation device. Background Art

[0002] In order to improve the production speed of cigarettes and the appearance quality of cigarettes, during the production process of cigarettes, the cigarette forming machine uses cigarette paper to roll tobacco into continuous cigarette rods of a certain diameter, the cigarette cutting device cuts the continuous cigarette rods into double-length cigarette segments, and passes them to the downstream filter-tipped machine. The cigarette cutting device of the filter-tipped machine cuts the double-length cigarette segment in the middle into two single-length cigarettes, the cigarette separating device separates two tightly attached cigarettes axially by a distance (generally 50 to 70 mm), and inserts a double-length filter between the separated distances, and the cigarette and filter are wrapped with cork paper and then cut in the middle into a single cigarette.

[0003] Cigarette separation devices are generally divided into two types: mechanical and airflow. Mechanical cigarette separation devices are further divided into two types: cam and inclined plate. Both types of mechanical cigarette separation devices have problems such as complex structure, difficult maintenance, and large workload for spacing adjustment (parts such as cams need to be replaced).

[0004] Chinese invention patent document CN111747100A discloses an airflow driven cigarette separation device, in which cigarettes form an air chamber through a slot block that moves radially at high speed, a corresponding rectangular slot of a wheel body and an arc-shaped cover, and a large gap is provided between the bottom of the slot block and the bottom of the rectangular slot of the wheel body, so that the slot block can move radially in the wheel body. However, the high-speed movement of the slot block is not only easy to cause damage to the cigarettes, but also during the high-speed radial movement of the slot block, a large volume change will occur between the bottom of the slot block and the bottom of the rectangular slot of the wheel body, and a strong negative pressure / or positive pressure will be formed. In the negative pressure state, cigarette dust, dust, etc. are easily sucked into the space at the bottom of the slot block through the air suction holes on the slot block, causing the slot block to move. In the positive pressure state, it affects the adsorption of cigarettes and is easy to cause cigarettes to fall. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an airflow type cigarette separation device, which can use airflow to separate two coaxial cigarettes axially by a certain distance, and in the process of cigarette separation, the cigarettes have no radial movement but only axial movement.

[0006] In order to solve the above technical problems, the technical solution of the airflow type cigarette separation device of the utility model is:

[0007] The wheel body 1 comprises a wheel body 1, a gas distribution sleeve 12, a bearing seat 11, a first end face cam 5, a second end face cam 6, a rectangular frame 3 and an arc cover 4. The wheel body 1 is fixedly connected to a driving shaft 10. A plurality of cigarette adsorption air holes B penetrating in the radial direction are provided in the middle of the wheel body 1, and cigarette separation air holes C penetrating in the radial direction are provided at both ends of the wheel body 1. A plurality of cigarette separation grooves 1-1 are provided in the circumferential direction of the wheel body 1. The gas distribution sleeve 12 is fixedly arranged in the inner hole of the wheel body 1. The bearing seat 11 is fixedly arranged in the gas distribution sleeve 12. An annular cavity is formed between the bearing seat 11 and the gas distribution sleeve 12. As a negative pressure airflow space; the driving shaft 10 drives the wheel body 1 to rotate relative to the air distribution sleeve 12, so that its cigarette adsorption holes B or cigarette separation holes C are connected to the negative pressure airflow space; the first end face cam 5 is fixedly arranged at one end of the wheel body 1; the second end face cam 6 is fixedly arranged at the other end of the wheel body 1; the rectangular frame 3 is movably arranged in the cigarette separation groove 1-1; the rollers 3-4 at both ends of the rectangular frame 3 are respectively movably arranged in the annular cam grooves F of the first end face cam 5 and the second end face cam 6; the arc cover 4 is fixedly arranged on the outer surface of the wheel body 1.

[0008] In another embodiment, a cigarette receiving groove A is formed in the cigarette separation groove 1-1; the width of the cigarette receiving groove A is smaller than the width of the cigarette separation groove 1-1, and both sides of the cigarette receiving groove A form rectangular grooves E with the inner wall of the cigarette separation groove 1-1 respectively.

[0009] In another embodiment, the rectangular frame 3 includes two plates 3-1, and the two ends of the two plates 3-1 are fixedly connected by connecting blocks 3-2; shafts 3-3 are respectively provided on the two connecting blocks 3-2, and the shafts 3-3 are connected to the rollers 3-4.

[0010] In another embodiment, the plate 3 - 1 matches the rectangular groove E so that the plate 3 - 1 can be inserted into the rectangular groove E and can move radially along the rectangular groove E.

[0011] In another embodiment, the annular cam groove F is composed of four arc-shaped grooves connected end to end; the radius of the second arc-shaped groove F2 is greater than the radius of the fourth arc-shaped groove F4, and the two ends of the second arc-shaped groove F2 and the fourth arc-shaped groove F4 are respectively connected by the first arc-shaped groove F1 and the third arc-shaped groove F3; the curvature of the second arc-shaped groove is not less than 90 degrees.

[0012] In another embodiment, the arc cover 4 extends along the circumference of the wheel body 1, and the area where the arc cover 4 is located corresponds to the second arc groove F2 of the annular cam groove F; when the rectangular frame 3 moves radially to the highest point under the action of the first end face cam 5 and the second end face cam 6, the rectangular frame 3, the smoke receiving groove A and the arc cover 4 form a closed air chamber.

[0013] In another embodiment, the plurality of cigarette adsorption pores B are axially distributed in the middle of the smoke receiving groove A; and the cigarette separation pores C are located at both ends of the smoke receiving groove A.

[0014] In another embodiment, the axial length of the cigarette receiving groove A is smaller than the axial length of the wheel body 1; cigarette positioning blocks 2 are fixedly provided at both ends of the cigarette separation groove 1-1, and the cigarette positioning blocks 2 are located on the outside of the cigarette receiving groove A.

[0015] In another embodiment, the distance between the cigarette receiving groove A and the outer circumferential surface of the wheel body 1 is not greater than half the diameter of the cigarette to be separated.

[0016] In another embodiment, an air inlet slot D is opened in the axial middle portion of the arc-shaped cover 4 , and the air inlet slot D is provided with an air flow dividing plate 7 .

[0017] In another embodiment, the bearing seat 11 and the gas distribution sleeve 12 are coaxially arranged.

[0018] In another embodiment, the driving shaft 10 is inserted into the bearing seat 11, and the driving shaft 10 is movably connected to the bearing seat 11 via a bearing.

[0019] The technical effects that can be achieved by the utility model are:

[0020] The utility model utilizes the end face cam to drive the rectangular frame to move radially, replacing the movement of the arc slot block in the existing airflow separation device. It effectively solves the problems of cigarette damage easily caused by the high-speed movement of the arc slot block and cigarette dust and the like easily being sucked into the space at the bottom of the slot block through the suction holes on the slot block. At the same time, it also overcomes the phenomenon of cigarette falling caused by the volume change between the bottom of the slot block and the bottom of the rectangular slot of the wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Those skilled in the art should understand that the following description is only to schematically illustrate the principles of the present invention, which can be applied in a variety of ways to achieve many different alternative embodiments. These descriptions are only used to illustrate the general principles of the teaching content of the present invention and are not meant to limit the utility model concepts disclosed herein.

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the general description above and the detailed description of the drawings below, are used to explain the principles of the present invention.

[0023] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] Figure 1 It is a schematic diagram of the airflow type cigarette separation device of the utility model;

[0025] Figure 2 It is a schematic diagram of the wheel assembly of the utility model;

[0026] Figure 3 yes Figure 2 Side view of

[0027] Figure 4 It is a schematic diagram of the wheel body of the utility model;

[0028] Figure 5 It is a schematic diagram of a rectangular frame of the utility model;

[0029] Figure 6 It is a schematic diagram of the end face cam of the utility model;

[0030] Figure 7 It is a schematic diagram of the arc cover of the utility model.

[0031] Description of reference numerals in the figures:

[0032] 1 is the wheel body, 2 is the cigarette positioning block,

[0033] 3 is a rectangular frame, 4 is an arc cover,

[0034] 5 is the first end face cam, 6 is the second end face cam,

[0035] 7 is an air flow partition plate, 8 is a wall plate,

[0036] 9 is a base, 10 is a drive shaft,

[0037] 11 is a bearing seat, 12 is a gas distribution sleeve,

[0038] 1-1 is the cigarette separation slot,

[0039] 3-1 is a plate, 3-2 is a connecting block,

[0040] 3-3 is the shaft, 3-4 is the roller,

[0041] A is the smoke receiving groove, B is the cigarette adsorption hole,

[0042] C is the cigarette separation hole, D is the air intake slot,

[0043] E is a rectangular groove, F is a circular cam groove,

[0044] F1 is the first arc groove, F2 is the second arc groove,

[0045] F3 is the third arc-shaped groove, and F4 is the fourth arc-shaped groove. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work belong to the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the utility model belongs. The "first", "second" and similar words used in this article do not indicate any order, quantity or importance, but are only used to distinguish different components. "Including" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0047] like Figure 1 As shown, the airflow type cigarette separation device of the utility model comprises a driving shaft 10, and the driving shaft 10 is fixedly connected to the wheel body 1;

[0048] The drive shaft 10 is inserted into the bearing seat 11, and the drive shaft 10 is movably connected to the bearing seat 11 through the bearing; the bearing seat 11 is fixedly arranged, and the drive shaft 10 can rotate relative to the bearing seat 11;

[0049] The middle of the wheel body 1 is provided with a plurality of radially penetrating cigarette adsorption holes B, and both ends of the wheel body 1 are provided with radially penetrating cigarette separation holes C.

[0050] The inner hole of the wheel body 1 is fixedly provided with an air distribution sleeve 12; an annular cavity is formed between the inner circumferential surface of the air distribution sleeve 12 and the outer circumferential surface of the bearing seat 11 as a negative pressure air flow space; the wheel body 1 can rotate relative to the air distribution sleeve 12 under the drive of the driving shaft 10; when the wheel body 1 rotates until the air distribution hole of the air distribution sleeve 12 is connected with the cigarette adsorption hole B, the annular cavity is connected with the cigarette adsorption hole B to form an adsorption airflow AF2; when the wheel body 1 rotates until the air distribution hole of the air distribution sleeve 12 is connected with the cigarette separation hole C, the annular cavity is connected with the cigarette separation hole C to form a separation airflow AF1;

[0051] A first end face cam 5 and a second end face cam 6 are fixedly disposed at both ends of the wheel body 1 ; the first end face cam 5 and the second end face cam 6 are installed facing each other.

[0052] Preferably, the bearing seat 11 and the gas distribution sleeve 12 are coaxially arranged;

[0053] Furthermore, the bearing seat 11 is fixedly connected to the wall panel 8; an air outlet Q is provided on the wall panel 8;

[0054] The gas distribution sleeve 12 is fixedly connected to the base 9;

[0055] Furthermore, the base 9 is fixedly disposed on the wall panel 8 .

[0056] like Figure 4 As shown, the wheel body 1 is provided with a plurality of axially penetrating cigarette separation grooves 1-1 along the circumferential direction; a cigarette receiving groove A is formed in each cigarette separation groove 1-1; the axial length of the cigarette receiving groove A is smaller than the axial length of the wheel body 1; cigarette positioning blocks 2 are fixedly provided at both ends of the cigarette separation groove 1-1, and the cigarette positioning blocks 2 are located outside the cigarette receiving groove A;

[0057] The width of the cigarette receiving groove A is smaller than the width of the cigarette separation groove 1-1, and the two sides of the cigarette receiving groove A respectively form rectangular grooves E with the inner wall of the cigarette separation groove 1-1; the rectangular groove E penetrates along the axial direction;

[0058] A plurality of cigarette adsorption holes B are axially distributed in the middle of the cigarette receiving groove A; cigarette separation holes C are located at both ends of the cigarette receiving groove A;

[0059] Preferably, the distance between the cigarette receiving groove A and the outer circumference of the wheel body 1 is not greater than half the diameter of the cigarette to be separated; so that the cigarette adsorbed on the cigarette receiving groove A can protrude from the outer circumference of the wheel body 1, thereby facilitating the transfer of cigarettes between the wheel body 1 and other equipment;

[0060] A rectangular frame 3 is movably disposed in each cigarette separation slot 1-1; Figure 5 As shown, the rectangular frame 3 includes two plates 3-1, and the two ends of the two plates 3-1 are fixedly connected by connecting blocks 3-2 respectively; the plates 3-1 match the rectangular groove E so that the plates 3-1 can be inserted into the rectangular groove E and can move radially along the rectangular groove E;

[0061] The two connecting blocks 3-2 are respectively provided with shafts 3-3, and the shafts 3-3 are connected to the rollers 3-4;

[0062] The two rollers 3-4 are movably arranged in the annular cam grooves F of the first end face cam 5 and the second end face cam 6 respectively;

[0063] The inner end surfaces of the first end cam 5 and the second end cam 6 are provided with an annular cam groove F; Figure 6As shown, the annular cam groove F is composed of four arc-shaped grooves connected end to end; the radius of the second arc-shaped groove F2 is greater than the radius of the fourth arc-shaped groove F4, and the two ends of the second arc-shaped groove F2 and the fourth arc-shaped groove F4 are respectively connected by the first arc-shaped groove F1 and the third arc-shaped groove F3; the curvature of the second arc-shaped groove is not less than 90 degrees.

[0064] The outer surface of the wheel body 1 is fixedly provided with an arc cover 4; the length of the arc cover 4 matches the wheel body 1; and the arc cover 4 extends along the circumference of the wheel body 1, and the arc of the arc cover 4 is not less than 90 degrees;

[0065] The area where the arc-shaped cover 4 is located corresponds to the second arc-shaped groove F2 of the annular cam groove F.

[0066] like Figure 7 As shown, an air inlet slot D is provided in the axial middle of the arc-shaped cover 4, and an air flow dividing plate 7 is provided in the air inlet slot D; Figure 2 , Figure 3 As shown, the airflow separator 7 extends in the circumferential direction, and the airflow separator 7 divides the airflow flowing into the wheel body 1 into two streams, front and rear, for two sections of cigarettes respectively;

[0067] When the air distribution hole of the air distribution sleeve 12 is connected with the cigarette adsorption hole B of the wheel body 1, the first airflow enters the annular cavity from the air inlet through the cigarette adsorption hole B at the front of the cigarette receiving groove A, and flows out from the air outlet Q, thereby adsorbing the first section of the cigarette to the front of the cigarette receiving groove A; the second airflow enters the annular cavity from the air inlet through the cigarette adsorption hole B at the rear of the cigarette receiving groove A, and flows out from the air outlet Q, thereby adsorbing the second section of the cigarette to the rear of the cigarette receiving groove A;

[0068] When the air distribution holes of the air distribution sleeve 12 are connected with the cigarette separation holes C of the wheel body 1, the first airflow enters the annular cavity from the air inlet through the cigarette separation holes C at the front end of the smoke receiving groove A, and flows out from the air outlet Q, thereby driving the first section of cigarettes to move toward the front end of the smoke receiving groove A; the second airflow enters the annular cavity from the air inlet through the cigarette separation holes C at the rear end of the smoke receiving groove A, and flows out from the air outlet Q, thereby driving the first section of cigarettes to move toward the rear end of the smoke receiving groove A.

[0069] The utility model can realize the independent movement of two sections of cigarettes by means of the airflow dividing plate 7 arranged on the air inlet slot D.

[0070] like Figure 1 As shown, the working principle of the airflow type cigarette separation device of the utility model is as follows:

[0071] The driving shaft 10 drives the wheel body 1 to rotate relative to the gas sleeve 12; during the rotation process, the wheel body 1 drives the rollers 3-4 of the rectangular frame 3 to move counterclockwise along the annular cam grooves F of the first end face cam 5 and the second end face cam 6;

[0072] When a cigarette receiving groove A of the wheel body 1 is at 0°, the outer surface of the rectangular frame 3 coincides with the outer circumferential surface of the wheel body 1 (i.e., the rectangular frame 3 is at a low point), and at this time, the gas distribution hole of the gas distribution sleeve 12 is connected with the cigarette adsorption hole B of the wheel body 1; the negative pressure airflow flows through the cigarette adsorption hole B of the cigarette receiving groove A, the gas distribution hole of the gas distribution sleeve 12 and the air outlet Q to form an adsorption airflow AF2; under the action of the adsorption airflow AF2, the wheel body 1 receives a double length of cigarette from the previous process equipment, and adsorbs the cigarette on the cigarette receiving groove A through the cigarette adsorption hole B;

[0073] The roller 3-4 continues to move counterclockwise along the first arc groove F1 of the annular cam groove F; under the action of the first arc groove F1, the roller 3-4 drives the rectangular frame 3 to move radially outward along the wheel body 1; when the smoke bearing groove A moves to -45°, the rectangular frame 3 rises to the highest position, and the roller 3-4 enters the second arc groove F2;

[0074] The roller 3-4 continues to move counterclockwise along the second arc groove F2 of the annular cam groove F, and the height of the rectangular frame 3 remains unchanged; the rectangular frame 3 contacts the arc cover 4, and the outer edge of the rectangular frame 3, the smoke receiving groove A on the surface of the wheel body 1, and the arc cover 4 closely attached to the surface of the wheel body 1 form a closed air chamber;

[0075] At the same time, the air distribution holes of the air distribution sleeve 12 are connected with the cigarette separation holes C of the wheel body 1, and are disconnected from the cigarette adsorption holes B;

[0076] Two negative pressure air flows flow toward the two ends of the closed air chamber, flow through the air inlet slot D on the arc cover, the gap between the cigarette and the inner slot of the rectangular frame 3, the cigarette separation air holes C located at the two ends of the cigarette receiving slot A, the air distribution holes and the air outlet Q of the air distribution sleeve 12, and form two separation air flows AF1; under the action of the two separation air flows AF1, the cigarette moves along the cigarette receiving slot A to the two ends of the wheel body 1, thereby realizing the axial separation of the cigarette; because the two ends of the cigarette receiving slot A are fixedly provided with cigarette positioning blocks 2, the cigarette moves until it contacts the cigarette positioning blocks 2, and the cigarette is separated in place;

[0077] When the cigarette receiving groove A moves to -135°, the gas distribution hole of the gas distribution sleeve 12 is connected with the cigarette adsorption hole B of the wheel body 1, and is disconnected from the cigarette separation hole C; the negative pressure airflow flows through the cigarette adsorption hole B of the cigarette receiving groove A, the gas distribution hole of the gas distribution sleeve 12 and the air outlet Q, and forms the adsorption airflow AF2 again; under the action of the adsorption airflow AF2, the cigarette is adsorbed on the cigarette receiving groove A through the cigarette adsorption hole B;

[0078] The roller 3-4 continues to move counterclockwise along the annular cam groove F. When the roller 3-4 enters the third arc groove F3, the roller 3-4 drives the rectangular frame 3 to move radially inwardly along the wheel body 1.

[0079] When the cigarette receiving groove A moves to -180°, the rectangular frame 3 is reset, and the outer surface of the rectangular frame 3 coincides with the outer circumferential surface of the wheel body 1. The separated cigarette will protrude from the surface of the wheel body 1. At this time, the wheel body 1 transfers the cigarette in the cigarette receiving groove A to the downstream wheel body. Thereafter, the roller 3-4 keeps its height unchanged along the fourth arc groove F4 of the annular cam groove F, that is, within the range of -180° to 0°, the rectangular frame 3 maintains its height unchanged, and the wheel body 1 receives the cigarette transferred from the upstream wheel body at 0°, and enters the next cycle.

[0080] The utility model utilizes the relative rotation between the wheel body 1 and the end face cam, so that the wheel body 1 drives the rectangular frame 3 to make radial movement during the rotation process; at the same time, the wheel body 1 and the air distribution sleeve 12 also rotate relative to each other, so that the cigarette adsorption holes B or the cigarette separation holes C of the wheel body 1 are connected with the negative pressure airflow space during the rotation process, so that the negative pressure airflow switches between the adsorption airflow AF2 and the separation airflow AF1.

[0081] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these changes and modifications.

Claims

1. An airflow type cigarette separation device, characterized in that: include: The wheel body is fixedly connected to the driving shaft; a plurality of radially penetrating cigarette adsorption air holes are opened in the middle of the wheel body, and radially penetrating cigarette separation air holes are opened at both ends of the wheel body; a plurality of cigarette separation grooves are opened along the circumference of the wheel body; A gas distribution sleeve, fixedly arranged in the inner hole of the wheel body; The bearing seat is fixedly arranged in the gas distribution sleeve; an annular cavity is formed between the bearing seat and the gas distribution sleeve as a negative pressure airflow space; the driving shaft drives the wheel body to rotate relative to the gas distribution sleeve, so that the cigarette adsorption air hole or the cigarette separation air hole is connected with the negative pressure airflow space; A rectangular frame is movably disposed in the cigarette separation groove; rollers at both ends of the rectangular frame are movably disposed in the annular cam grooves of the first end face cam and the second end face cam respectively; and The arc-shaped cover is fixedly arranged on the outer surface of the wheel body.

2. The airflow type cigarette separation device according to claim 1, characterized in that: A cigarette receiving groove is formed in the cigarette separation groove; the width of the cigarette receiving groove is smaller than the width of the cigarette separation groove, and both sides of the cigarette receiving groove form rectangular grooves with the inner wall of the cigarette separation groove respectively.

3. The airflow type cigarette separation device according to claim 2, characterized in that: The rectangular frame comprises two plates, and the two ends of the two plates are fixedly connected by connecting blocks respectively; shafts are respectively arranged on the two connecting blocks, and the shafts are connected to the rollers.

4. The airflow type cigarette separation device according to claim 3, characterized in that: The plate matches the rectangular groove so that the plate can be inserted into the rectangular groove and can move radially along the rectangular groove E.

5. The airflow type cigarette separation device according to claim 1, characterized in that: The annular cam groove is composed of four arc-shaped grooves connected end to end; the radius of the second arc-shaped groove is greater than the radius of the fourth arc-shaped groove, and the two ends of the second arc-shaped groove and the fourth arc-shaped groove are respectively connected by the first arc-shaped groove and the third arc-shaped groove.

6. The airflow type cigarette separation device according to claim 5, characterized in that: The arc cover extends along the circumference of the wheel body, and the area where the arc cover is located corresponds to the second arc groove of the annular cam groove; when the rectangular frame moves radially to the highest point under the action of the first end face cam and the second end face cam, the rectangular frame, the smoke receiving groove and the arc cover form a closed air chamber.

7. The airflow type cigarette separation device according to claim 2, characterized in that: The multiple cigarette adsorption holes are axially distributed in the middle of the smoke receiving groove; the cigarette separation holes are located at both ends of the smoke receiving groove.

8. The airflow type cigarette separation device according to claim 2, characterized in that: The axial length of the cigarette receiving groove is smaller than the axial length of the wheel body; cigarette positioning blocks are fixedly arranged at both ends of the cigarette separation groove, and the cigarette positioning blocks are located outside the cigarette receiving groove.

9. The airflow type cigarette separation device according to claim 2, characterized in that: The distance between the cigarette receiving groove and the outer circumferential surface of the wheel body is not greater than half the diameter of the cigarette to be separated.

10. The airflow type cigarette separation device according to claim 1, characterized in that: An air intake slot is provided in the axial middle portion of the arc-shaped cover, and an air flow dividing plate is provided in the air intake slot.

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