Residual cut tobacco screening device

Abstract

The utility model discloses a residual tobacco shred screening device, and belongs to the technical field of tobacco production. The residual tobacco shred screening device comprises a screen body, a vibration motor and a tobacco shred uniformizing unit, a screen mesh is horizontally arranged in the screen body, an upper protective cover is arranged at the top of the screen body, a feeding port is formed in the upper protective cover, and the feeding port is located at the starting end of the screen mesh; the bottom of the screen body is communicated with a tobacco soil discharging port, one side of the screen body is communicated with a tobacco shred discharging port, the tobacco shred discharging port is located at the tail end of the screen, and an air volume adjusting unit is arranged on one side of the tobacco shred discharging port and located above the screen. The multiple vibration motors are symmetrically installed at the bottom of the screen body in the longitudinal direction of the screen body, and the tobacco shred uniformizing unit is arranged above the feeding port. The screening area of tobacco shreds can be increased, blocking of the screen is reduced, the screening effect is improved, and environmental pollution is reduced. The problems that the screening area is small, and the screening effect is poor due to screening blockage are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco production, in particular to a residual tobacco screening device. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] During the cigarette production process, a certain number of defective cigarettes are inevitably produced due to defects such as empty ends, air leaks, and damage. However, through appropriate processing, these defective cigarettes can be recycled, increasing tobacco utilization and reducing tobacco waste.

[0004] Currently, the processing of defective cigarettes requires transporting them from the cigarette machine to a residual tobacco processing line, where the tobacco is separated from the defective cigarettes and then recycled for further use. In the residual tobacco processing line, the tobacco is separated from other debris through a screening device.

[0005] However, the existing screening devices have a single mesh size, which can easily clog the screening device during the separation process, affecting the screening effect. To avoid clogging of the screening device, cigarette manufacturers directly treat all tobacco particles smaller than 1mm as tobacco dust, resulting in significant waste.

[0006] The utility model patent with authorization announcement number CN219373773U discloses a residual smoke screening device, which prevents the screen from being blocked by arranging a friction plate on the screen. However, the screen is open, and the smoke dust generated during the vibration of the tobacco can easily splash into the environment, causing environmental pollution; and its feed hopper is located above the screen, and the screen below the feed hopper cannot play a good screening role for the residual tobacco, resulting in a waste of the screening area of ​​the screen. Utility Model Content

[0007] In view of the shortcomings of the prior art, the purpose of the embodiments of the present utility model is to provide a residual tobacco screening device to solve the problem of poor residual tobacco screening effect caused by screen blockage or waste of screening area.

[0008] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0009] A residual tobacco screening device, comprising:

[0010] A sieve body, wherein a sieve is horizontally arranged inside the sieve body, an upper protective cover is provided on the top of the sieve body, and the upper protective cover is provided with a feed port, and the feed port is located at the starting end of the sieve;

[0011] The bottom of the sieve body is connected to an opium discharge port, and one side of the sieve body is connected to a tobacco discharge port, the tobacco discharge port is located at the end of the sieve, and an air volume adjustment unit is provided on one side of the tobacco discharge port, and the air volume adjustment unit is located above the sieve;

[0012] A plurality of vibration motors are symmetrically installed at the bottom of the sieve body along the longitudinal direction of the sieve body;

[0013] A tobacco shredded material unit is arranged above the feed port.

[0014] By adopting the above technical solution, the tobacco shredded material device is used to transport the residual tobacco directly to the starting end of the screen, thereby increasing the screening area of ​​the screen; the symmetrically arranged vibration motor is used to generate a longitudinal exciting force to vibrate the screen, thereby reducing the probability of clogging of the screen; the air volume adjustment unit is used to suck away debris such as shredded paper contained in the screened tobacco, thereby screening out impurities in the tobacco.

[0015] In some embodiments, the tobacco shredded material mixing unit includes a shell, a conveying mesh belt and a spiral conveying shaft. The conveying mesh belt is horizontally arranged on the shell along the tobacco conveying direction, and the spiral conveying shaft is rotatably connected to the conveying mesh belt; a protective shell is provided on the top of the shell.

[0016] By adopting the above technical solution, the split residual tobacco is dropped onto the conveyor belt, which is then driven by the spiral conveyor shaft to be transported to the head of the screen. The protective shell is used to prevent the dropped tobacco from splashing.

[0017] In some embodiments, a plurality of triangular braces are provided on the side surface of the shell, and the triangular braces are evenly distributed along the length direction of the shell.

[0018] By adopting the above technical solution, the tobacco conveying unit can be well supported.

[0019] In some embodiments, the air volume regulating unit includes an air duct and a fan, the air duct is located above the screen, the fan is connected to the air duct, and the air duct is provided with a throttle valve.

[0020] By adopting the above technical solution, the suction force provided by the fan is utilized to suck in light debris such as waste paper through the air duct.

[0021] In some embodiments, an adjustable bracket is provided on the air duct.

[0022] By adopting the above technical solution, the height of the air duct can be adjusted according to the suction effect to adjust the transportation effect of the tobacco.

[0023] In some embodiments, the sieve includes a primary sieve and a secondary sieve, the primary sieve and the secondary sieve are spaced apart along the height direction of the sieve body, and a silica gel ball is arranged between the primary sieve and the secondary sieve.

[0024] By adopting the above technical solution, when the screen vibrates, the silicone balls can rub between the primary screen and the secondary screen to avoid clogging of the primary screen and the secondary screen.

[0025] In some embodiments, the aperture of the primary sieve is smaller than that of the secondary sieve.

[0026] By adopting the above technical solution, after the opium and tobacco are separated by the first-level screen, the opium is quickly discharged through the second-level screen with a large aperture, thereby improving the efficiency of tobacco screening.

[0027] In some embodiments, support legs are provided at the bottom of the sieve body, and elastic vibration supports are provided between the support legs and the sieve body.

[0028] By adopting the above technical solution, equipment noise can be reduced.

[0029] In some embodiments, a protective cover is provided on the outside of the vibration motor, a connecting bracket is provided on the protective cover, and the connecting bracket is connected to the sieve body.

[0030] By adopting the above technical solution, the protective cover is used to protect the vibration motor, and the connecting bracket is used to achieve a stable connection between the vibration motor and the screen body.

[0031] In some embodiments, the longitudinal section of the feed port is funnel-shaped, the longitudinal section of the opium discharge port is funnel-shaped, and the shredded tobacco discharge port is inclined.

[0032] By adopting the above technical solution, the inflow and outflow of materials are facilitated.

[0033] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:

[0034] 1. The technical solution provided by the utility model increases the screening area of ​​tobacco by setting the tobacco refining unit; reduces the blockage of the screen by setting the vibration motor and the double-layer screen, and improves the screening effect of the screening device.

[0035] 2. The technical solution provided by the utility model adjusts the wind suction force after the tobacco soil and tobacco are screened through the air volume adjustment unit, thereby screening out impurities in the screened tobacco.

[0036] 3. The technical solution provided by the utility model is adjustable and can be adjusted according to actual application scenarios, making it more versatile. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0038] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0039] Figure 2 This is a schematic front view of a screening unit provided by an embodiment of the present utility model;

[0040] Figure 3 It is a side view schematic diagram of the screening unit provided by the embodiment of the present utility model;

[0041] Figure 4 It is a top view schematic diagram of the screening unit provided by the embodiment of the present utility model;

[0042] In the figure: 1. Tobacco mixing unit; 2. Screen body; 3. Air volume adjustment unit; 4. Vibration motor assembly; 5. Elastic vibration support; 6. Feed inlet; 7. Tobacco discharge outlet; 8. Tobacco discharge outlet; 9. Upper protective cover.

[0043] In order to show the positions of various parts, the distances or sizes between them are exaggerated, and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0044] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0045] As introduced in the background technology, the tobacco screening device in the prior art is prone to cause blockage of the screen, waste of screening area and environmental pollution during screening, affecting the screening effect. In order to solve the above technical problems, the utility model proposes a residual tobacco screening device.

[0046] Combine Figure 1-Figure 4The residual tobacco screening device includes a screen body 2, a vibration motor assembly 4, and a tobacco refining unit 1. The screen body 2 is hollow inside, with a screen mesh installed horizontally inside. An upper protective cover 9 is provided on the top of the screen body 2, with a funnel-shaped feed port 6 formed on the upper protective cover 9. The feed port 6 is located at the starting end of the screen mesh, and the tobacco refining unit 1 is located above the feed port 6. The bottom of the screen body 2 is connected to a funnel-shaped tobacco discharge port 7, and one side of the screen body 2 is connected to a tobacco discharge port 8. The tobacco discharge port 8 is located at the end of the screen mesh and is tilted downward to facilitate material outflow. An air volume adjustment unit 3 is installed above the screen mesh. The air volume adjustment unit 3 is located at the end of the screen body 2 and in front of the tobacco discharge port 8 to screen out impurities such as paper scraps in the screened tobacco. The vibration motor assembly 4 includes two vibration motors and a protective cover body. The two vibration motors are symmetrically installed at the two ends of the protective cover body. A connecting bracket is installed on the outer side of the protective cover body along the length direction. The vibration assembly is installed on the bottom of the screen body 2 through the connecting bracket. At this time, the two vibration motors are symmetrically distributed along the longitudinal direction of the screen body 2, which can offset the lateral exciting force generated by the vibration of the vibration motor, so that the material can jump toward the discharge port better.

[0047] When the two vibration motors installed longitudinally on the screen body 2 are running relative to each other, the eccentric blocks at both ends of the two vibration motors generate rated exciting forces. The lateral exciting forces generated by the two vibration motors cancel each other out due to the relative running of the motors, and the longitudinal exciting forces are transmitted to the entire screen box through the vibration motor assembly 4, causing the screen to vibrate; thereby, the material on the screen is affected by the exciting force and jumps toward the discharge port on the screen, and the material smaller than the screen hole passes through the screen hole and falls to the lower layer, and flows out from the tobacco discharge port 8 or the opium discharge port 7 after continuous jumping. Due to the reasonable screening process, the material can be obtained into several materials of different particle sizes after vibration screening, thus completing the material grading operation.

[0048] Furthermore, four support legs are installed at the bottom of the screen body 2, and the top ends of the support legs are fixedly connected to the bottom of the screen body 2 via elastic vibration supports 5 to reduce vibration. Here, the elastic vibration supports 5 are commonly used in the prior art. They are not improved in this embodiment and will not be described in detail here.

[0049] Furthermore, to improve the screening effect and prevent clogging of the screen, the screen includes a primary screen and a secondary screen. The primary and secondary screens are spaced apart along the height direction of the screen body 2, with the primary screen located above the secondary screen. A plurality of silicone balls are placed between the primary and secondary screens. When the screen vibrates, the silicone balls can rub between the primary and secondary screens, preventing clogging of the primary and secondary screens.

[0050] In this embodiment, the aperture of the first-level screen is smaller than that of the second-level screen. After the opium and tobacco are separated by the first-level screen, the opium is quickly discharged through the second-level screen with a larger aperture, thereby improving the efficiency of tobacco screening.

[0051] As an embodiment, the tobacco shredded material mixing unit 1 includes a shell, a conveyor mesh belt and two spiral conveying shafts. The conveyor mesh belt is horizontally installed on the shell along the tobacco conveying direction. An outlet is opened at the end of the shell along the tobacco conveying direction. The spiral conveying shaft is rotatably connected to the conveyor mesh belt and is respectively located at both ends of the conveyor mesh belt. The end of the spiral conveying shaft is connected to a driving motor, which drives the conveyor mesh belt to rotate under the action of the driving motor to convey the material to the screen body 2.

[0052] To prevent tobacco from splashing during cutting, a protective shell is installed on the top of the housing, with an inlet opening at the top. Two triangular braces are connected to the side of the housing. These braces are evenly distributed along the length of the housing, providing good support for the housing and securing it above the screen body 2. Specifically, the triangular braces include a horizontal bar, a vertical bar, and a support bar. The horizontal bar is arranged horizontally, with one end of the vertical bar welded to one end of the horizontal bar, the other end of the horizontal bar welded to one end of the support bar, the other end of the vertical bar welded to the side of the support bar, and the other end of the support bar welded to the housing.

[0053] The air volume regulating unit 3 includes an air duct and a fan. The fan is connected to the air duct. A throttle valve is installed in the air duct. An adjustable bracket is installed at the bottom of the air duct. One end of the adjustable bracket is fixed to the wall, and the other end is connected to the air duct to fix the air duct above the screen.

[0054] Specifically, the adjustable bracket includes a connecting rod and a connecting bracket. The connecting rod is arranged horizontally, one end of which is fixed to the wall by an expansion screw, and the other end is provided with a long slot hole; the connecting bracket is fixed to the air duct, and the bolt passes through the long slot hole and is threadedly connected to the connecting bracket. The height of the air duct is adjusted by adjusting the upper and lower positions of the bolt in the long slot hole, thereby adjusting the suction effect of light debris such as waste paper.

[0055] As an embodiment, the screen includes a primary screen and a secondary screen, and the primary screen and the secondary screen are spaced apart along the height direction of the screen body 2. The primary screen is located above the secondary screen, and the aperture of the primary screen is smaller than that of the secondary screen; multiple silicone balls are installed between the primary screen and the secondary screen.

[0056] During screening, the tobacco and shredded tobacco are separated by the first-level screen, and then the tobacco is quickly discharged through the second-level screen with a large aperture, thereby improving the efficiency of tobacco screening. The jumping friction of the silicone ring is also used to avoid clogging of the screen.

[0057] The working method of this embodiment is as follows:

[0058] The residual tobacco falls onto the conveyor belt of the tobacco shaving unit 1 through the feed port. Driven by the drive motor and the spiral conveyor shaft, the conveyor belt transports the residual tobacco to the feed port 6, and falls into the starting end of the screen through the feed port 6; the tobacco and the tobacco soil are separated by the vibration of the vibration motor, the tobacco soil is discharged through the tobacco soil discharge port 7, and the tobacco is discharged through the tobacco discharge port 8.

[0059] In this embodiment, the conveyor mesh belt is made of stainless steel to extend its service life.

[0060] Although the above description of the specific implementation methods of the present invention is combined with the accompanying drawings, it does not limit the scope of protection of the present invention. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present invention, various modifications or deformations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present invention.

Claims

1. A residual tobacco screening device, characterized in that: include: A sieve body, wherein a sieve is horizontally arranged inside the sieve body, an upper protective cover is arranged on the top of the sieve body, and a feed inlet is opened on the upper protective cover, and the feed inlet is located at the starting end of the sieve; The bottom of the sieve body is connected to a tobacco discharge port, one side of the sieve body is connected to a tobacco discharge port, the tobacco discharge port is located at the end of the sieve, and one side of the tobacco discharge port is provided with an air volume regulating unit, the air volume regulating unit is located above the sieve; A vibration motor, wherein the number of the vibration motors is plural and they are symmetrically installed at the bottom of the sieve body along the longitudinal direction of the sieve body; A tobacco shred refining unit is arranged above the feed inlet.

2. The residual tobacco screening device according to claim 1, characterized in that: The tobacco shredding unit comprises a shell, a conveying mesh belt and a spiral conveying shaft. The conveying mesh belt is horizontally arranged on the shell along the tobacco conveying direction, and the spiral conveying shaft is rotatably connected to the conveying mesh belt. A protective shell is sleeved on the top of the shell.

3. The residual tobacco screening device according to claim 2, characterized in that: A plurality of triangular diagonal braces are arranged on the side surface of the shell, and the triangular diagonal braces are evenly distributed along the length direction of the shell.

4. The residual tobacco screening device according to claim 1, characterized in that: The air volume regulating unit comprises an air duct and a fan, wherein the air duct is located above the screen, the fan is connected to the air duct, and the air duct is provided with a throttle valve.

5. The residual tobacco screening device according to claim 4, characterized in that: An adjustable bracket is arranged on the air duct.

6. The residual tobacco screening device according to claim 1, characterized in that: The sieve comprises a primary sieve and a secondary sieve, the primary sieve and the secondary sieve are arranged at intervals along the height direction of the sieve body, and a silica gel ball is arranged between the primary sieve and the secondary sieve.

7. The residual tobacco screening device according to claim 6, characterized in that: The aperture of the primary sieve is smaller than that of the secondary sieve.

8. The residual tobacco screening device according to claim 1, characterized in that: The bottom of the sieve body is provided with supporting legs, and elastic vibration supports are provided between the supporting legs and the sieve body.

9. The residual tobacco screening device according to claim 1, characterized in that: A protective cover body is arranged outside the vibration motor, a connecting bracket is arranged on the protective cover body, and the connecting bracket is connected to the sieve body.

10. The residual tobacco screening device according to claim 1, characterized in that: The longitudinal section of the feed port is funnel-shaped, the longitudinal section of the tobacco discharge port is funnel-shaped, and the tobacco discharge port is inclined.

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