Pneumatic conveying device for defective cigarettes and using method of pneumatic conveying device

Abstract

The invention discloses a pneumatic conveying device for defective cigarettes. The pneumatic conveying device comprises a left nozzle (1) and a right nozzle (3), the left nozzle (1) and the cylinder opening of the cylinder with the larger diameter of the right nozzle (3) are sealed and fixed together through the right cylinder opening of the cylinder of the left nozzle (1); and the conical opening (121) is aligned with the cylinder opening of the small cylinder (31). The invention further discloses a using method of the defective cigarette pneumatic conveying device.

Description

Technical Field

[0001] This invention belongs to the field of tobacco technology, specifically relating to a pneumatic conveying device for defective cigarettes and its usage method. Background Technology

[0002] Cigarette production generates a large number of substandard cigarettes that do not meet manufacturing standards. While these cigarettes contain qualified tobacco with high reuse value, they still need to be recycled. Currently, commonly used waste cigarette processing equipment often uses agitation and sieving to separate the tobacco from the waste cigarettes. However, because menthol cigarettes contain flavor capsules in their filters, agitation and sieving inevitably cause these capsules to break, resulting in off-flavors from the liquid flavoring inside. Therefore, specialized equipment is needed to process menthol cigarettes. To meet the requirements for recycling and processing substandard cigarette tobacco, a hoist lifts the substandard cigarettes to a straightening device. After straightening, each cigarette enters a high-pressure conveying nozzle and is then transported to a cutting device for slitting, where the tobacco is separated. Patent CN2023114102495 uses a transmitter to separate defective cigarettes one by one using a launching drum, and then conveys them by high-pressure pneumatics. However, due to the uneven feeding of defective cigarettes, there are double and triple cigarettes that have not been cut off. The method of separating the defective cigarettes with a drum and then launching them with a transmitter cannot meet the production requirements.

[0003] This invention is proposed for this purpose. Summary of the Invention

[0004] This invention discloses a pneumatic conveying device for defective cigarettes. The device can accelerate defective cigarettes through a high-pressure conveying nozzle and then convey them to a cutting device for cutting, thus meeting the requirements for recycling and processing the tobacco from defective cigarettes.

[0005] The technical solution of the present invention is as follows:

[0006] The first aspect of this invention discloses a pneumatic conveying device for defective cigarettes, which includes: a left nozzle 1 and a right nozzle 3;

[0007] The left nozzle 1 is cylindrical, and its left bottom wall extends from the center into the cylindrical body of the left nozzle 1 to form a trumpet-shaped body 12; the large opening of the trumpet-shaped body 12 is a negative pressure inlet 122, and the small opening is a conical opening 121; the outer wall of the conical opening 121 gradually thins to form an outlet inclined surface 120; there is an opening on the side wall of the left nozzle 1 as a gas inlet 11.

[0008] The right nozzle 3 is a combination of two coaxial cylindrical bodies with different diameters. The inner diameter of the inlet inner wall 312 of the small cylinder 31 at the junction of the two cylindrical bodies gradually decreases to the inlet inclined surface 310. The inner diameter of the larger cylindrical body of the right nozzle 3 is the same as the inner diameter of the cylindrical body of the left nozzle 1.

[0009] The left nozzle 1 is sealed and fixed together with the right cylinder opening of the right nozzle 3 through the larger diameter cylinder opening, and the conical opening 121 is aligned with the cylinder opening of the small cylinder 31.

[0010] Preferably, the conical opening 121 extends out of the right opening of the left nozzle 1, and the length of the extended conical opening 121 is slightly greater than the height of the larger diameter cylindrical body of the right nozzle 3; the conical opening 121 extends into the inlet inner wall 312 of the small cylinder 31, and a gap is formed between the outlet inclined surface 120 and the inlet inclined surface 310.

[0011] Preferably, the inner diameter of the conical opening 121 is the same as the inner diameter of the small cylinder 31, and slightly larger than the outer diameter of the defective cigarette 5.

[0012] Preferably, there is one or more washers 2 between the left nozzle 1 and the right nozzle 3; the right cylindrical wall of the left nozzle 1 has multiple threaded blind holes 101, the washers 2 have multiple through holes 201 corresponding to the threaded blind holes 101, and the cylindrical wall of the larger diameter cylinder of the right nozzle 3 has multiple countersunk holes 301 corresponding to the through holes 201; the screw 4 seals and fixes the left nozzle 1, the right nozzle 3 and the washers 2 together through the countersunk holes 301, the through holes 201 and the threaded blind holes 101; wherein the inner wall of the cylindrical body of the left nozzle 1, the outer wall of the trumpet-shaped body 12 and the inner wall of the larger diameter cylinder of the right nozzle 3 form a gas cavity 13.

[0013] The second aspect of this invention discloses a method of using the pneumatic conveying device for defective cigarettes, comprising the following steps:

[0014] Assemble the left nozzle 1, washer 2 and right nozzle 3 in sequence, aligning the threaded blind hole 101, through hole 201 and countersunk hole 301; screw 4 passes through the countersunk hole 301, through hole 201 and threaded blind hole 101 to seal and fix the left nozzle 1, right nozzle 3 and washer 2 together, and adjust the number of washer 2 to one or more as needed;

[0015] Air enters the gas chamber 13 through the gas inlet 11, then enters the small cylinder 31 through the gap between the outlet inclined surface 120 and the inlet inclined surface 310, and is then ejected through the gas outlet 311 at the right side opening of the small cylinder 31. At this time, a negative pressure is formed at the negative pressure inlet 122 at the large opening of the trumpet-shaped body 12. The negative pressure draws in the defective cigarette 5 at the negative pressure inlet 122 and quickly enters the conical opening 121 and the cylinder 31, and then ejects it through the gas outlet 311 at the right side opening of the small cylinder 31. In this way, the defective cigarette 5 can be ejected one by one, straightened, and then transported to the cutting device for cutting. After cutting, the tobacco is separated from the tobacco by the screening device.

[0016] Adjust the number of gaskets 2 as needed to adjust the size of the gap between the outlet inclined surface 120 and the inlet inclined surface 310, thereby adjusting the negative pressure at the negative pressure inlet 122.

[0017] The beneficial effects of this invention are:

[0018] The pneumatic conveying device for defective cigarettes of the present invention, through the special structural design and combination of the left and right nozzles, creates a negative pressure at the large opening of the trumpet-shaped body of the left nozzle by introducing high-pressure air, which draws in the defective cigarettes and outputs them at high speed under the action of the input high-pressure air. This achieves the accelerated straightening and conveying of defective cigarettes one by one to the cutting device for cutting. After cutting, the tobacco shreds are separated from the tobacco by the screening device. The device of the present invention can process regular defective cigarettes, double defective cigarettes, and even cigarette sticks at the same time, with high efficiency.

[0019] The pneumatic conveying device for defective cigarettes of the present invention adjusts the size of the gap between the outlet inclined surface and the inlet inclined surface by installing adjusting gaskets between the left nozzle and the right nozzle, thereby adjusting the negative pressure at the negative pressure inlet. Attached Figure Description

[0020] Figure 1 This is an exploded view of the pneumatic conveying device for defective cigarettes according to the present invention.

[0021] Figure 2 This is a perspective view of the left nozzle of the pneumatic conveying device for defective cigarettes according to the present invention.

[0022] Figure 3 This is a cross-sectional view of the center of the left nozzle of the pneumatic conveying device for defective cigarettes of the present invention.

[0023] Figure 4 This is a perspective view of the right nozzle of the pneumatic conveying device for defective cigarettes according to the present invention.

[0024] Figure 5 This is a cross-sectional view of the center of the right nozzle of the pneumatic conveying device for defective cigarettes of the present invention.

[0025] Figure 6 This is a central axial cross-sectional view of the pneumatic conveying device for defective cigarettes of the present invention; the arrow indicates the direction of gas movement.

[0026] Figure 7 for Figure 6 The circled image is an enlarged view; the arrow indicates the direction of gas movement.

[0027] The attached diagram is labeled as follows: 1. Left nozzle; 101. Threaded blind hole; 11. Gas inlet; 12. Horn-shaped body; 13. Gas chamber; 120. Outlet inclined surface; 121. Conical opening; 122. Negative pressure inlet; 2. Washer; 21. Through hole; 3. Right nozzle; 301. Countersunk hole; 31. Small cylinder; 310. Inlet inclined surface; 311. Gas outlet; 312. Inlet inner wall; 4. Screw; 5. Defective cigarette stick. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device 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 this invention.

[0030] Furthermore, the terms “first”, “second”, etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0031] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0033] like Figure 1-7 As shown, the first aspect of the present invention discloses a pneumatic conveying device for defective cigarettes, which includes: a left nozzle 1 and a right nozzle 3;

[0034] like Figure 2 and Figure 3 As shown, the left nozzle 1 is cylindrical, and its left bottom wall extends from the center into the cylindrical body of the left nozzle 1 to form a trumpet-shaped body 12; the large opening of the trumpet-shaped body 12 is a negative pressure inlet 122, and the small opening is a conical opening 121; the outer wall of the opening of the conical opening 121 gradually thins to form an inclined outlet surface 120; there is an opening on the side wall of the left nozzle 1 as a gas inlet 11;

[0035] like Figure 4 and Figure 5 As shown, the right nozzle 3 is a combination of two coaxial cylindrical bodies with different diameters. The inner diameter of the inlet inner wall 312 of the small cylinder 31 at the junction of the two cylindrical bodies gradually decreases to the inlet inclined surface 310; the inner diameter of the larger cylindrical body of the right nozzle 3 is the same as the inner diameter of the cylindrical body of the left nozzle 1.

[0036] The left nozzle 1 is sealed and fixed together with the right cylinder opening of the right nozzle 3 through the larger diameter cylinder opening, and the conical opening 121 is aligned with the cylinder opening of the small cylinder 31.

[0037] like Figure 6 As shown, the conical opening 121 extends out of the right opening of the left nozzle 1, and the length of the conical opening 121 is slightly greater than the height of the larger cylindrical body of the right nozzle 3; the conical opening 121 extends into the inner wall 312 of the inlet of the small cylinder 31, and a gap is formed between the outlet inclined surface 120 and the inlet inclined surface 310.

[0038] like Figure 6 As shown, the inner diameter of the conical opening 121 is the same as the inner diameter of the small cylinder 31, and is slightly larger than the outer diameter of the defective cigarette 5.

[0039] like Figure 1 As shown, there are one or more washers 2 between the left nozzle 1 and the right nozzle 3; the right cylinder wall of the left nozzle 1 has multiple threaded blind holes 101, the washers 2 have multiple through holes 201 corresponding to the threaded blind holes 101, and the cylinder wall of the larger diameter cylinder of the right nozzle 3 has multiple countersunk holes 301 corresponding to the through holes 201; the screw 4 seals and fixes the left nozzle 1, the right nozzle 3 and the washers 2 together through the countersunk holes 301, the through holes 201 and the threaded blind holes 101; wherein the inner wall of the cylinder of the left nozzle 1, the outer wall of the trumpet-shaped body 12 and the inner wall of the larger diameter cylinder of the right nozzle 3 form a gas cavity 13.

[0040] The present invention also discloses a method for using the pneumatic conveying device for defective cigarettes, comprising the following steps:

[0041] like Figure 6As shown, the left nozzle 1, washer 2 and right nozzle 3 are assembled together in sequence, with the threaded blind hole 101, through hole 201 and countersunk hole 301 aligned; the screw 4 passes through the countersunk hole 301, through hole 201 and threaded blind hole 101 to seal and fix the left nozzle 1, right nozzle 3 and washer 2 together, and the number of washer 2 can be adjusted to one or more as needed;

[0042] Air enters the gas chamber 13 through the gas inlet 11, then enters the small cylinder 31 through the gap between the outlet inclined surface 120 and the inlet inclined surface 310, and is then ejected through the gas outlet 311 at the right side opening of the small cylinder 31. At this time, a negative pressure is formed at the negative pressure inlet 122 at the large opening of the trumpet-shaped body 12. The negative pressure draws in the defective cigarette 5 at the negative pressure inlet 122 and quickly enters the conical opening 121 and the cylinder 31, and then ejects it through the gas outlet 311 at the right side opening of the small cylinder 31. In this way, the defective cigarette 5 can be ejected one by one, straightened, and then transported to the cutting device for cutting. After cutting, the tobacco is separated from the tobacco by the screening device.

[0043] Adjust the number of gaskets 2 as needed to adjust the size of the gap between the outlet inclined surface 120 and the inlet inclined surface 310, thereby adjusting the negative pressure at the negative pressure inlet 122.

[0044] Using the pneumatic conveying device for defective cigarettes of this invention, through the special structural design and combination of the left nozzle 1 and the right nozzle 3, high-pressure air is introduced to create a negative pressure at the large opening of the trumpet-shaped body of the left nozzle, drawing in the defective cigarettes and outputting them at high speed under the action of the input high-pressure air. This achieves the accelerated straightening and conveying of the defective cigarettes 5 one by one to the cutting device for cutting. After cutting, the tobacco shreds are separated from the tobacco by the screening device. The device of this invention can simultaneously process regular defective cigarettes, double defective cigarettes, and even tobacco sticks, with high efficiency. By installing adjusting gaskets between the left and right nozzles, the size of the gap between the outlet inclined surface and the inlet inclined surface is adjusted, thereby adjusting the negative pressure at the negative pressure inlet.

[0045] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. A pneumatic conveying device for defective cigarettes, characterized in that, It includes: Left nozzle (1) and right nozzle (3); The left nozzle (1) is cylindrical, and its left bottom wall extends from the center into the cylindrical body of the left nozzle (1) to form a trumpet-shaped body (12); the large opening of the trumpet-shaped body (12) is a negative pressure inlet (122), and the small opening is a conical opening (121); the outer wall of the conical opening (121) gradually thins to form an outlet inclined surface (120); there is an opening on the side wall of the left nozzle (1) as a gas inlet (11). The right nozzle (3) is a combination of two coaxial cylindrical bodies with different diameters. The inner diameter of the inner wall (312) of the small cylinder (31) at the junction of the two cylindrical bodies gradually decreases to become the inlet inclined surface (310). The inner diameter of the larger cylindrical body of the right nozzle (3) is the same as the inner diameter of the cylindrical body of the left nozzle (1). The left nozzle (1) is sealed and fixed together with the right cylinder opening of the right nozzle (3) through the right cylinder opening of its cylinder body, and the conical opening (121) is aligned with the cylinder opening of the small cylinder (31).

2. The pneumatic conveying device for defective cigarettes according to claim 1, characterized in that, The conical opening (121) extends out to the right opening of the left nozzle (1), and the length of the conical opening (121) is slightly greater than the height of the larger diameter cylindrical body of the right nozzle (3); the conical opening (121) extends into the inner wall (312) of the inlet of the small cylinder (31), and a gap is formed between the outlet inclined surface (120) and the inlet inclined surface (310).

3. The pneumatic conveying device for defective cigarettes according to claim 1, characterized in that, The inner diameter of the conical opening (121) is the same as the inner diameter of the small cylinder (31) and slightly larger than the outer diameter of the defective cigarette 5.

4. The pneumatic conveying device for defective cigarettes according to claim 1, characterized in that, There are one or more washers (2) between the left nozzle (1) and the right nozzle (3); there are multiple threaded blind holes (101) on the right cylinder wall of the left nozzle (1), multiple through holes (201) corresponding to the threaded blind holes (101) on the washer (2), and multiple countersunk holes (301) corresponding to the through holes (201) on the cylinder wall of the larger diameter cylinder of the right nozzle (3); the screw (4) seals and fixes the left nozzle (1), the right nozzle (3) and the washer (2) together through the countersunk holes (301), the through holes (201) and the threaded blind holes (101); wherein the inner wall of the cylinder of the left nozzle (1), the outer wall of the trumpet-shaped body (12) and the inner wall of the larger diameter cylinder of the right nozzle (3) form a gas cavity (13).

5. The method of using the pneumatic conveying device for defective cigarettes according to any one of claims 1-4, characterized in that, Includes the following steps: Assemble the left nozzle (1), washer (2) and right nozzle (3) in sequence, aligning the threaded blind hole (101), through hole (201) and countersunk hole (301); screw (4) passes through the countersunk hole (301), through hole (201) and threaded blind hole (101) to seal and fix the left nozzle (1), right nozzle (3) and washer (2) together, and adjust the number of washer (2) to one or more as needed; Air enters the gas chamber (13) through the gas inlet (11), and then enters the small cylinder (31) through the gap between the outlet inclined surface (120) and the inlet inclined surface (310). It is then ejected through the gas outlet (311) on the right side of the small cylinder (31). At this time, a negative pressure is formed at the negative pressure inlet (122) of the large opening of the trumpet-shaped body (12). The negative pressure draws in the defective cigarette (5) at the negative pressure inlet (122) and quickly enters the conical mouth (121) and the cylinder of the small cylinder (31). Then it is ejected through the gas outlet (311) on the right side of the small cylinder (31). In this way, the defective cigarette (5) can be ejected one by one and straightened. Then it is sent to the cutting device for cutting. After cutting, the tobacco is separated from it by the screening device. Adjust the number of gaskets (2) as needed to adjust the size of the gap between the outlet inclined surface (120) and the inlet inclined surface (310), thereby adjusting the negative pressure at the negative pressure inlet (122).

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