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CN-117378807-B - Tobacco shred screening device

CN117378807BCN 117378807 BCN117378807 BCN 117378807BCN-117378807-B

Abstract

The invention relates to the technical field of tobacco shred recycling equipment. The invention provides a tobacco shred screening device which comprises a vibrating screen, a receiving cover, an air separation device and a collecting box. The inside screening surface of the vibrating screen is of a ladder structure, an air separation device for carrying out air separation treatment on materials in the tobacco shred screening process is arranged in the vibrating screen, a receiving cover for stirring and dispersing the materials is arranged at the feeding end of the vibrating screen, and a collecting box for respectively collecting tobacco shreds and miscellaneous materials is arranged at the discharging end of the vibrating screen. Through setting up the receiving cover, can once stir loose to the defective cigarette that cuts, shake the sieve and can jolt the motion forward with the pipe tobacco of separation, in addition, under the gaseous effect of pneumatic divider along the step face, can carry out the wind with pipe tobacco and auxiliary material and divide the dispersion, further guarantee that pipe tobacco and auxiliary material can not twine together, separate pipe tobacco end and the pipe tobacco of end better, promoted work efficiency and pipe tobacco separation efficiency.

Inventors

  • JIN CAIHONG
  • ZHANG ZHEN
  • ZHAO JIANYONG

Assignees

  • 红塔烟草(集团)有限责任公司

Dates

Publication Date
20260505
Application Date
20231026

Claims (9)

  1. 1. A tobacco shred screening device is characterized by comprising a vibrating screen (1), a receiving cover (2), a wind separating device (3) and a collecting box (4), wherein the receiving cover (2) is arranged above a feeding end of the vibrating screen (1), the receiving cover (2) comprises a cover body (205), a stirring roller (206) is arranged in the cover body, the receiving cover (2) is used for receiving defective cigarette materials cut by the previous procedure and outputting the materials to the feeding end of the vibrating screen (1) after stirring and dispersing the materials through the stirring roller (206), a screening surface of the vibrating screen (1) is of a stepped structure, the wind separating device (3) is arranged at a step (109) of the screening surface, the collecting box (4) is arranged below a discharging end of the vibrating screen (1), the wind separating device (3) is arranged at the lower side of the step (109), the wind separating device (3) comprises a shielding cover (301) and a gas spraying pipe (302), the height of the gas spraying pipe (302) is lower than the height of the gas spraying pipe (302), and the gas spraying pipe (302) is arranged along the direction of the gas spraying pipe (303) along the height direction of the gas spraying surface (301).
  2. 2. The tobacco shred screening device according to claim 1, wherein the vibrating screen (1) comprises a stepped screen (101), a tobacco shred conveying body (102) and a vibrating motor (105), the stepped screen (101) comprises a horizontally extending screen surface, screen holes (108) are uniformly distributed on the screen surface, the tobacco shred conveying body (102) is connected with the stepped screen (101) and is arranged below the screen surface and used for receiving tobacco shreds falling from the screen holes (108), and the vibrating motor (105) drives the stepped screen (101) and the tobacco shred conveying body (102) to vibrate.
  3. 3. A tobacco shred screening device according to claim 2, wherein the vibrating motor (105) is arranged on the side face of the tobacco shred conveying body (102) through a motor fixing plate (106), a vibrating screen support (103) is arranged below the vibrating screen (1), and the vibrating screen support (103) is connected with the tobacco shred conveying body (102) through a triangular buffer piece (104).
  4. 4. A tobacco shred screening device according to claim 2, wherein the width of the screen holes (108) is 4-5 mm.
  5. 5. A tobacco sieving device according to claim 2 or 3, in which the collecting box (4) comprises an auxiliary material collecting box (401) and a tobacco collecting box (402), the tobacco collecting box (402) being abutted against the discharge end of the tobacco conveying body (102), the auxiliary material collecting box (401) being abutted against the discharge end of the stepped sieve (101).
  6. 6. A tobacco shred screening device according to claim 2, wherein one end of the air jet pipe (302) extends to the outer side of the step screen (101) and is connected with an air valve (304), and the air valve (304) is communicated with an air source.
  7. 7. A tobacco shred screening device according to claim 1, wherein a feed inlet is formed on one side of a cover body (205) of the receiving cover (2), a discharge outlet is formed on the bottom of the cover body (205), the stirring roller (206) is horizontally arranged in the cover body (205), a driving motor (201) is arranged on the outer side of the cover body (205), and the driving motor (201) is used for driving the stirring roller (206) to rotate.
  8. 8. The tobacco shred screening device according to claim 7, wherein an extrusion gap is formed between the stirring roller (206) and the inner wall of the cover body (205), and after the material enters the material inlet of the cover body (205), the material can flow out of the material outlet of the cover body (205) after passing through the extrusion gap under the rotation driving of the stirring roller (206), so that the material is subjected to double dispersion by stirring and extrusion.
  9. 9. A tobacco screening device according to claim 7, wherein the receiving hood (2) further comprises receiving hood upright posts (207) arranged at two sides of the vibrating screen (1), a receiving hood support (208) is fixed on the receiving hood upright posts (207), the receiving hood support (208) horizontally spans above the screening surface of the vibrating screen (1), and the hood body (205) is fixedly connected to the receiving hood support (208).

Description

Tobacco shred screening device Technical Field The invention relates to the technical field of tobacco shred recovery, in particular to a tobacco shred screening device. Background In the production process of cigarettes, a certain amount of defective cigarettes are inevitably generated, the defective cigarettes need to be transported to a defective cigarette treatment line for treatment, tobacco shreds, filter tips and cigarette paper are thoroughly separated, and then recycled tobacco shreds are continuously utilized. The existing defective cigarette treatment equipment for the cigarette production workshop is characterized in that defective cigarettes are conveyed only through a lifting belt in the defective cigarette conveying process, and the defective cigarettes are treated in a violent stirring and crushing mode. Aiming at the technical problems, the spiral cutting device is designed, and the patent application number is 202310515669.3, namely the spiral cutting accelerating device for the defective explosive bead cigarettes can rotate cigarettes, the rotating cigarettes can be cut more completely, the situation that fine paper scraps are generated on cigarette paper in a glue-free area at a cigarette lap is avoided, and the purity of recycling tobacco shreds is improved. However, in experiments, the effect of the reduction tray on the tobacco shreds is found that the tobacco shred end of one cigarette and the tobacco shred at the tail end are relatively full, the cut tobacco shreds of the cigarette are difficult to separate at the two positions, the existing tobacco shred separating device adopts a vibrating screen vibration screening mode, the cut tobacco shreds cannot be completely processed by the processing, the separating effect is poor, or the manual processing is needed to intervene, and time and labor are wasted. In view of the above problems, the present inventors have finally achieved the present invention through long-time studies and practices. Disclosure of Invention In order to solve the technical problems, the invention provides the tobacco shred screening device which can better separate tobacco shreds at the end of a cigarette and the tail of the cigarette, does not need to carry out manual treatment, and improves the working efficiency and the tobacco shred separation efficiency. The invention adopts the technical scheme that: The receiving cover is arranged above a feeding end of the vibrating screen, the receiving cover comprises a cover body, a stirring roller is arranged in the cover body, the receiving cover is used for receiving defective cigarette materials cut in the previous procedure and outputting the materials to the feeding end of the vibrating screen after stirring and dispersing the materials through the stirring roller, a screening surface of the vibrating screen is of a step structure, the air separation device is arranged at a step of the screening surface, and the collecting box is arranged below a discharging end of the vibrating screen. The tobacco shred conveying device comprises a vibrating screen, a tobacco shred conveying body and a vibrating motor, wherein the vibrating screen comprises a stepped screen, a tobacco shred conveying body and a vibrating motor, the stepped screen comprises a screen surface which extends horizontally, screen holes are uniformly distributed on the screen surface, the tobacco shred conveying body is connected with the stepped screen and arranged below the screen surface and used for receiving tobacco shreds falling from the screen holes, and the vibrating motor drives the stepped screen and the tobacco shred conveying body to vibrate. Further, the vibrating motor is arranged on the side face of the tobacco shred conveying body through a motor fixing plate, a vibrating screen support is arranged below the vibrating screen, and the vibrating screen support is connected with the tobacco shred conveying body through a triangular buffer piece. Further, the width of the sieve holes is 4-5 mm. Further, the collection box comprises an auxiliary material collection box and a tobacco shred collection box, the tobacco shred collection box is in butt joint with the discharge end of the tobacco shred conveying body, and the auxiliary material collection box is in butt joint with the discharge end of the stepped screen. Further, the air separation device is arranged on the lower side of the step and comprises a shielding cover and an air ejector tube, the arrangement height of the air ejector tube is lower than the height surface of the step, the air ejector tube is arranged along the width direction of the screen surface, air holes are uniformly distributed on the upper surface of the air ejector tube along the length direction of the air ejector tube, the shielding cover is shielded right above the air holes, and the air ejector tube is communicated with an air source. Further, one end of the air injection pipe extends to the outer side of t