Automatic screening and blending device for sesame flakes and tobacco leaves

Abstract

The utility model relates to an automatic screening and blending device for sesame flake tobacco leaves, and belongs to the technical field of tobacco leaf screening. Comprising a belt conveyor used for conveying mixed sesame flakes, a screening mechanism and a dust collecting mechanism, the screening mechanism and the dust collecting mechanism are installed on a rack of the belt conveyor, and the dust collecting mechanism is used for receiving and discharging tobacco powder and dust screened out by the screening mechanism; the screening mechanism is installed on the rack of the belt conveyor to screen sesame flakes and tobacco leaves mixed with tobacco powder and dust, the screened tobacco powder and dust are received and discharged through the dust collecting mechanism, and the available sesame flakes and tobacco leaves subjected to purification and impurity removal are conveyed to the shredding process through the belt conveyor to be mixed with cut tobacco shreds. The sesame flake tobacco leaves are purified in a vibration screening mode, the screening efficiency is high, the screening effect is good, tobacco powder and dust are effectively prevented from being mixed into cut tobacco shreds, the quality of cigarette products can be effectively guaranteed, light sesame flake tobacco leaves can be effectively prevented from being removed, and the utilization rate of the sesame flake tobacco leaves can be effectively increased.

Description

Technical Field

[0001] The utility model relates to an automatic screening and blending device for sesame slices and tobacco leaves, belonging to the technical field of tobacco leaf screening. Background Art

[0002] In the production of cigarette shreds, sesame-flavored tobacco leaves are tobacco leaf fragments with a diameter larger than tobacco dust and smaller than tobacco slices. They have low processing resistance. If sesame-flavored tobacco leaves are mixed and shredded, the sesame-flavored tobacco leaves will be directly cut into tobacco dust and cannot be used. Therefore, before the tobacco slice shredding process, the tobacco leaves need to be vibrated and screened to separate the tobacco dust and sesame-flavored tobacco leaves from the tobacco slices to prevent the usable sesame-flavored tobacco leaves from being cut into tobacco dust during the shredding process, which will cause tobacco leaf loss and increase the dust content in tobacco shreds, seriously affecting the quality of cigarettes in subsequent processing and production, and producing defective cigarettes such as yellow-spotted cigarettes and empty cigarettes.

[0003] In order to reduce tobacco leaf breakage and improve tobacco leaf utilization, the current processing of sesame leaf tobacco is usually to directly mix the screened sesame leaf into the cut tobacco through a belt conveyor. However, since the screened sesame leaf also contains a large amount of tobacco dust and dust, the dust content of the cut tobacco increases, affecting the quality of cigarette products. In the prior art, there are also devices that can separate sesame-flavored tobacco leaves and remove tobacco dust, such as a sesame-flavored separator disclosed in Chinese patent publication number CN215656421U, which screens the sesame-flavored leaves by installing a vibrating screen body on a vibrating screen platform, and connects a dust removal duct to a dust removal port arranged on the vibrating screen body, and absorbs the crushed pieces and dust through a dust removal fan and a pulse dust collector to achieve separation and purification of the sesame-flavored leaves. However, for the lighter usable sesame-flavored tobacco leaves, during the screening process of the vibrating screen body of the unit, they are very easily sucked away and removed together with the crushed pieces by the dust removal fan, while dust particles with a mass greater than that of the sesame-flavored leaves are difficult to be sucked away by the dust removal fan, and are eventually mixed into the sesame-flavored leaves, thereby resulting in incomplete separation of the sesame-flavored leaves and waste of the lighter sesame-flavored leaves, resulting in a reduced utilization rate of the tobacco leaves. Utility Model Content

[0004] In order to overcome the problems existing in the background technology, the utility model proposes an automatic screening and blending device for sesame tobacco leaves, which has high screening efficiency and good screening effect, and can effectively prevent tobacco dust and dust from mixing into the cut tobacco, thereby effectively ensuring the quality of cigarette products, effectively preventing usable lightweight sesame tobacco leaves from being removed, and avoiding the waste of lightweight sesame leaves caused by mistaken removal, thereby effectively improving the utilization rate of sesame tobacco leaves.

[0005] In order to solve the above problems, the utility model is implemented through the following technical solutions:

[0006] An automatic screening and blending device for sesame slices and tobacco leaves comprises a belt conveyor for conveying blended sesame slices, and a screening mechanism and a dust collecting mechanism installed on a frame of the belt conveyor, wherein the dust collecting mechanism is used to receive and discharge tobacco dust and dust screened out by the screening mechanism;

[0007] The screening mechanism includes a support frame, a vibration trough, a support spring, a vibration motor, a feed hopper, a bracket, a screen, a material guide trough, and an ash receiving trough. The support frame is fixedly installed above the frame of the belt conveyor located at the feed end, and the support frame is a frame structure with the left side higher and the right side lower. The vibration trough is obliquely installed on the support frame through a support spring, and a vibration motor is installed at the bottom of the vibration trough. The feed hopper is installed above the feed end of the vibration trough through a bracket, and a screen parallel to the vibration trough is installed at a position below the feed hopper inside the vibration trough, the aperture of the screen is smaller than the diameter of the available sesame slices, and the discharge end of the screen is connected to the material guide trough, and an opening is provided at the bottom of the discharge end of the vibration trough, and an ash receiving trough is obliquely installed below the opening, and the discharge end of the ash receiving trough is located above the feed port of the dust collecting mechanism.

[0008] Preferably, the dust collecting mechanism includes a mounting plate, an ash hopper, a dust removal pipe, and a reinforcing support rod. The mounting plate is fixedly mounted on the frame of the belt conveyor, the ash hopper is mounted on the mounting plate at a position below the discharge end of the ash receiving trough, and a reinforcing support rod is connected between the mounting plate and the ash hopper. A dust removal pipe is connected to the bottom of the ash hopper, and the dust removal pipe is connected to the negative pressure dust collection system of the workshop.

[0009] Preferably, the cross-section of the bottom of the ash collecting hopper is a semicircular ring structure, and the inner bottom of the ash collecting hopper is smoothly connected to the inner wall of the dust removal duct.

[0010] Preferably, the installation height of the discharge end of the feed hopper is lower than the height of the upper end surface of the vibration trough.

[0011] Preferably, the portion of the vibration trough discharge end located below the screen is closed by a partition, and the inner wall of the partition is smoothly connected to the right inner wall of the ash receiving trough.

[0012] Preferably, the width of the ash receiving groove is greater than the width of the bottom opening of the vibration groove.

[0013] Preferably, the portion of the ash receiving trough located below the vibration trough is closed and connected to the vibration trough.

[0014] The beneficial effects of the utility model are:

[0015] The utility model installs a screening mechanism on the belt conveyor frame to screen sesame tobacco leaves mixed with tobacco dust and dust, receives and discharges the screened tobacco dust and dust through the dust collecting mechanism, and conveys the usable sesame tobacco leaves after purification and impurity removal to the shredding process through the belt conveyor and then mixes them with the cut tobacco, purifies the sesame tobacco leaves through vibration screening, has high screening efficiency and good screening effect, effectively avoids tobacco dust and dust from mixing into the cut tobacco, can effectively ensure the quality of cigarette products, effectively avoids the usable light sesame tobacco leaves from being rejected, avoids the waste of light sesame leaves caused by mistaken rejection, and can effectively improve the utilization rate of sesame tobacco leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is the front view of the utility model.

[0018] Explanation of the reference numerals: 1-belt conveyor, 2-screening mechanism, 3-dust collecting mechanism, 21-support frame, 22-vibration trough, 23-support spring, 24-vibration motor, 25-feed hopper, 26-bracket, 27-screen, 28-material guide trough, 29-ash receiving trough, 220-opening, 221-partition, 31-mounting plate, 32-ash collecting hopper, 33-dust removal duct, 34-reinforcement support rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution, purpose and effect of this application clear and easy to understand, the specific implementation methods of this application will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate this application, but are not used to limit the scope of this application. Similarly, the following examples are only some examples of this application rather than all examples. All other examples obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] It should be noted that in the description of this application, unless otherwise clearly defined or limited, the terms “installed”, “connected”, “connected”, “connected”, etc. should be understood in a broad sense, that is, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0021] In addition, in the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0022] In this application, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples without contradiction.

[0023] In the present utility model, if Figure 1-2 As shown, an automatic screening and blending device for sesame-flavored tobacco leaves comprises a belt conveyor 1 for conveying blended sesame-flavored tobacco leaves, and a screening mechanism 2 and a dust collecting mechanism 3 installed on the frame of the belt conveyor 1, wherein the dust collecting mechanism 3 is used to receive and discharge tobacco dust and dust screened out by the screening mechanism 2, thereby screening the sesame-flavored tobacco leaves mixed with tobacco dust and dust through the screening mechanism 2, and conveying the purified and impurity-removed usable sesame-flavored tobacco leaves to the shredding process through the belt conveyor 1 and blending them with the cut tobacco shreds, and at the same time, the tobacco dust and dust screened out by the screening mechanism 2 are received by the dust collecting mechanism 3 and discharged into the negative pressure dust collecting system of the workshop.

[0024] The screening mechanism 2 includes a support frame 21, a vibration groove 22, a support spring 23, a vibration motor 24, a feed hopper 25, a bracket 26, a screen 27, a guide groove 28, and an ash receiving groove 29, wherein the support frame 21 is fixedly mounted above the frame of the belt conveyor 1 at the feed end, the support frame 21 is a frame structure with the left side higher and the right side lower, the vibration groove 22 is tiltedly mounted on the support frame 21 through the support spring 23, and a vibration motor 24 is installed at the bottom of the vibration groove 22, and the The feed hopper 25 is installed above the feed end of the vibration groove 22 through a bracket 26. A screen 27 parallel to the vibration groove 22 is installed at a position below the feed hopper 25 inside the vibration groove 22. The aperture of the screen 27 is smaller than the diameter of the available sesame slices, and the discharge end of the screen 27 is connected to a guide trough 28. An opening 220 is provided at the bottom of the discharge end of the vibration groove 22, and an ash receiving trough 29 is obliquely installed below the opening 220. The discharge end of the ash receiving trough 29 is located above the feed port of the dust collecting mechanism 3. As a result, the vibration trough 22 generates high-frequency vibration under the action of the vibration motor 24, and the vibration trough 22 drives the screen 27 to vibrate to screen the sesame tobacco leaves. Small-sized tobacco leaves and dust pass through the mesh holes of the screen 27 and fall to the bottom of the vibration trough 22, while large-sized sesame tobacco leaves cannot pass through the mesh holes and are isolated on the mesh surface of the screen 27. Under the continuous vibration of the vibration trough 22, the tobacco leaves and dust slide down the vibration trough 22 and are discharged from the opening 220 to the ash receiving trough 29, and then are received by the dust collecting mechanism 3 and discharged to the workshop In the negative pressure dust collection system, the usable sesame tobacco leaves isolated by the screen 27 slide down along the screen 27 towards the discharge end of the screen 27 to the guide trough 28, and are guided to the belt conveyor 1 through the guide trough 28, and are then transported to the shredding process through the belt conveyor 1 and mixed with the shredded tobacco to achieve automatic screening and conveying and mixing of the sesame tobacco leaves. The screening efficiency is high, the screening effect is good, the sesame tobacco leaves can be fully utilized, the tobacco leaf crushing is effectively reduced, and the tobacco leaf utilization rate can be effectively improved.

[0025] In this embodiment, by installing a support spring 23 between the vibration groove 22 and the support frame 21, the belt conveyor 1 can be kept stable while providing swing space for the vibration of the vibration groove 22, which not only improves the operating stability of the screening and blending device, but also saves the installation space of the screening mechanism 2 and simplifies the structure of the screening mechanism 2, so as to facilitate installation and later maintenance; the feed hopper 25 is installed on the vibration groove 22 through the bracket 26, so that the feed hopper 25 can vibrate with the vibration of the vibration groove 22, which can not only promote the falling of sesame slices and tobacco leaves in the feed hopper 25 through the vibration effect to avoid blockage, but also saves the installation space of the feed hopper 25 and simplifies the support structure of the feed hopper 25, so as to facilitate installation and later maintenance. The device purifies sesame tobacco leaves by means of vibration screening, thus solving the problems in the prior art of light and usable sesame tobacco leaves being easily mistakenly rejected and the problem of incomplete separation of dust particles. The sesame tobacco leaves have good separation effect from tobacco dust and dust, and the screening is thorough, which effectively avoids tobacco dust and dust from mixing into the cut tobacco, and can effectively ensure the quality of cigarette products. At the same time, it effectively avoids the rejection of usable light sesame tobacco leaves, avoids the waste of light sesame leaves caused by mistaken rejection, and can effectively improve the utilization rate of sesame tobacco leaves.

[0026] In this embodiment, the dust collecting mechanism 3 includes a mounting plate 31, an ash hopper 32, a dust removal pipe 33, and a reinforcing support rod 34. The mounting plate 31 is fixedly mounted on the frame of the belt conveyor 1. The ash hopper 32 is mounted on the mounting plate 31 at a position below the discharge end of the ash receiving trough 29, and a reinforcing support rod 34 is connected between the mounting plate 31 and the ash hopper 32. A dust removal pipe 33 is connected to the bottom of the ash hopper 32, and the dust removal pipe 33 is connected to the workshop negative pressure dust collection system, so that the smoke and dust discharged from the ash trough 29 are received by the ash hopper 32, and the smoke and dust in the ash hopper 32 are sucked away by the negative pressure of the dust removal pipe 33 and discharged into the workshop negative pressure dust collection system, thereby realizing the collection and discharge of smoke and dust.

[0027] In this embodiment, optionally, the cross-section of the bottom of the ash hopper 32 is a semicircular ring structure, and the bottom of the ash hopper 32 is smoothly connected to the inner wall of the dust removal pipe 33, so that the smoke and dust can be collected at the bottom of the ash hopper 32, and at the same time can be fully sucked away by the dust removal pipe 33, thereby avoiding the smoke and dust from being deposited in the ash hopper 32 for a long time or generating dust to pollute the sesame tobacco leaves.

[0028] In this embodiment, optionally, the installation height of the discharge end of the feed hopper 25 is lower than the height of the upper end surface of the vibration trough 22, thereby ensuring that the sesame tobacco leaves, tobacco dust, and dust in the feed hopper 25 fall accurately onto the screen 27, thereby preventing the material from overflowing the vibration trough 22 and causing pollution to the pure sesame tobacco leaves on the belt conveyor 1 or causing waste of tobacco leaves.

[0029] In this embodiment, optionally, the portion of the discharge end of the vibration trough 22 located below the screen 27 is closed by a partition 221, so that the blocking effect of the partition 221 can prevent tobacco dust and dust from rushing out of the vibration trough 22 to generate dust or mixing into pure sesame tobacco leaves. The inner wall of the partition 221 is smoothly connected to the right inner wall of the ash receiving trough 29, so that the blocking and diverting effects of the partition 221 can ensure that tobacco dust and dust fully fall into the ash receiving trough 29, thereby preventing tobacco dust and dust from remaining on the vibration trough 22.

[0030] In this embodiment, optionally, the width of the ash receiving groove 29 is greater than the width of the bottom opening of the vibration groove 22 , thereby ensuring that the smoke and dust falling to the bottom of the vibration groove 22 are fully introduced into the ash receiving groove 29 .

[0031] In this embodiment, optionally, the portion of the ash receiving trough 29 located below the vibration trough 22 is closed and connected to the vibration trough 22, that is, the left and right side walls and the rear side wall of the ash receiving trough 29 located below the vibration trough 22 are closed and connected to the bottom of the vibration trough 22, thereby preventing tobacco dust and dust from leaking out from the gap between the ash receiving trough 29 and the vibration trough 22 and mixing into the pure sesame tobacco leaves below, and effectively ensuring the purity of the sesame tobacco leaves after screening. In some embodiments, a drop cover can also be provided on the portion of the ash receiving trough 29 that exceeds the vibration trough 22, and the drop cover can be extended downward to the ash collecting hopper 32, thereby effectively preventing tobacco dust and dust in the ash receiving trough 29 from generating dust during the discharge process and causing pollution to the pure sesame tobacco leaves.

[0032] The working process of this utility model:

[0033] The mixture of sesame tobacco leaves, tobacco dust and dust produced after screening the shredded tobacco leaves is put into the feed hopper 25, and the vibration motor 24 in the belt conveyor 1 and the screening mechanism 2 is started, so that the vibration trough 22 generates high-frequency vibration under the action of the vibration motor 24, and the vibration trough 22 drives the screen 27 to vibrate to screen the mixture. After the mixture falls from the feed hopper 25 to the screen 27, it moves along the inclined screen 27 to the discharge end of the vibration trough 22 under the action of vibration. During the movement, small-sized tobacco dust and dust pass through the mesh of the screen 27 and fall to the bottom of the vibration trough 22, and large-sized sesame tobacco leaves are The leaves are isolated on the mesh surface of the screen 27 and slide down to the material guide trough 28 toward the discharge end of the screen 27, and then the smoke and dust discharged from the ash trough 29 are received by the ash collecting hopper 32 in the dust collecting mechanism 3, and the smoke and dust in the ash collecting hopper 32 are sucked away by the negative pressure of the dust removal pipe 33 and discharged into the negative pressure dust collection system of the workshop. At the same time, the usable sesame tobacco leaves isolated by the screen 27 are guided to the belt conveyor 1 through the material guide trough 28, and then transported to the shredding process through the belt conveyor 1 and mixed with the cut tobacco, so as to realize the automatic screening and conveying and blending of sesame tobacco leaves.

[0034] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A device for automatically screening and blending sesame and tobacco leaves, characterized by: The sesame flakes and tobacco leaf automatic screening and blending device comprises a belt conveyor (1) for conveying blended sesame flakes, and a screening mechanism (2) and a dust collecting mechanism (3) mounted on a frame of the belt conveyor (1), wherein the dust collecting mechanism (3) is used to receive and discharge tobacco dust and dust screened out by the screening mechanism (2); The screening mechanism (2) comprises a support frame (21), a vibration groove (22), a support spring (23), a vibration motor (24), a feed hopper (25), a bracket (26), a screen (27), a material guide groove (28), and an ash receiving groove (29). The support frame (21) is fixedly mounted above a frame of the belt conveyor (1) located at a feed end. The support frame (21) is a frame structure with the left side higher and the right side lower. The vibration groove (22) is tiltedly mounted on the support frame (21) via a support spring (23). A vibration motor (24) is mounted at the bottom of the vibration groove (22). The hopper (25) is installed above the feeding end of the vibration trough (22) through a bracket (26); a screen (27) parallel to the vibration trough (22) is installed at a position below the feeding hopper (25) inside the vibration trough (22); the aperture of the screen (27) is smaller than the diameter of the available sesame slices, and the discharge end of the screen (27) is connected to a guide trough (28); an opening (220) is provided at the bottom of the discharge end of the vibration trough (22); an ash receiving trough (29) is obliquely installed below the opening (220); and the discharge end of the ash receiving trough (29) is located above the feeding port of the dust collecting mechanism (3).

2. The automatic screening and blending device for sesame slices and tobacco leaves according to claim 1 is characterized by: The dust collecting mechanism (3) comprises a mounting plate (31), an ash collecting hopper (32), a dust removal pipe (33), and a reinforcing support rod (34); the mounting plate (31) is fixedly mounted on the frame of the belt conveyor (1); the ash collecting hopper (32) is mounted on the mounting plate (31) at a position below the discharge end of the ash receiving trough (29); a reinforcing support rod (34) is connected between the mounting plate (31) and the ash collecting hopper (32); a dust removal pipe (33) is connected to the bottom of the ash collecting hopper (32); and the dust removal pipe (33) is connected to a negative pressure dust collecting system in a workshop.

3. The automatic screening and blending device for sesame slices and tobacco leaves according to claim 2 is characterized by: The cross section of the bottom of the ash collecting hopper (32) is a semicircular ring structure, and the inner bottom of the ash collecting hopper (32) is smoothly connected to the inner wall of the dust removal pipe (33).

4. The automatic screening and blending device for sesame slices and tobacco leaves according to claim 1 or 3, characterized in that: The installation height of the discharge end of the feed hopper (25) is lower than the height of the upper end surface of the vibration groove (22).

5. The automatic screening and blending device for sesame slices and tobacco leaves according to claim 4 is characterized by: The portion of the discharge end of the vibration trough (22) located below the screen (27) is closed by a partition (221), and the inner wall of the partition (221) is smoothly connected to the right inner wall of the ash receiving trough (29).

6. The automatic screening and blending device for sesame slices and tobacco leaves according to claim 1 or 5, characterized in that: The width of the ash receiving groove (29) is greater than the width of the bottom opening of the vibration groove (22).

7. The automatic screening and blending device for sesame slices and tobacco leaves according to claim 6, characterized in that: The portion of the ash receiving groove (29) located below the vibration groove (22) is closed and connected to the vibration groove (22).

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