Tobacco shred screening device
By designing a tobacco wire screening device with a raised second screen surface and a magnetic suction assembly, the problem of low smooth movement of debris in the prior art is solved, and a more efficient tobacco wire removal effect is achieved, ensuring that Tobacco quality.
Patent Information
- Application Number
- CN202421004774.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In the existing tobacco processing equipment, when the vibrating screen removes debris in tobacco, the thickness of the tobacco layer is large, resulting in low smooth movement of debris, which will affect the debris removal effect, resulting in a certain amount of debris remaining in the tobacco.
A tobacco screening device is designed, including a first screen surface and a second screen surface, the second screen surface is bulged on the first screen surface, forming an elongated channel, and a magnetic suction assembly is provided at the opening of the channel. This device increases the contact area between the bottom of the tobacco layer and the screen surface, increases the filter area of the tobacco wire, and creates a stirring effect on the tobacco wire through the raised structure, thereby improving the looseness, thereby promoting the smooth movement and removal of debris.
It effectively improves the effect of screening and removing impurities in tobacco, reduces the residue of debris in tobacco, and ensures the high-quality output of tobacco.
Smart Images
Figure CN222469344U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tobacco processing equipment, and in particular to a tobacco screening device. Background Art
[0002] In the tobacco processing technology, it is inevitable that various impurities will be mixed into the tobacco. The impurities mixed into the tobacco are usually divided into metal impurities and non-metal impurities. When removing these two impurities, it is mostly done through a vibrating screen. The tobacco is transported forward on the vibrating screen while being vibrated and screened to remove impurities. For non-metallic impurities, during the vibration process, non-metallic impurities pass through the sieve holes on the vibrating screen and fall off. For non-metallic impurities, a magnet is usually set at the bottom of the vibrating screen. As the tobacco vibrates and moves forward, the magnet absorbs the metal impurities in the tobacco. However, in actual screening and impurity removal, it was found that due to the large amount of tobacco accumulated in the vibrating screen, the thickness of the tobacco layers was large, and during screening and impurity removal, non-metallic impurities needed to move downward in the tobacco layer and pass through the sieve holes on the vibrating screen and fall off, and metal impurities also needed to move in the tobacco layer to the vicinity of the magnet. Therefore, when the thickness of the tobacco layer is large, the tobacco layer cannot be loosened enough during vibration, and the smoothness of the movement of impurities is not high, which results in poor screening and impurity removal effect of the tobacco, and a certain amount of impurities will remain in the tobacco. Utility Model Content
[0003] The purpose of the present application is to provide a tobacco screening device, which can more effectively remove impurities in tobacco, thereby effectively solving the shortcomings of the prior art.
[0004] To this end, in a first aspect, an embodiment of the present application provides a tobacco screening device, comprising:
[0005] a first screen surface, on which the tobacco can move along a preset direction, and on which a plurality of first screen holes are arranged;
[0006] A second screen surface is provided on the first screen surface and is raised along the moving direction of the tobacco shreds, and a plurality of second screen holes are provided on the second screen surface;
[0007] The second screen surface and the first screen surface partially enclose a long strip channel. Along the moving direction of the tobacco shreds, the upstream end of the long strip channel is sealed, the downstream end of the long strip channel is open, and a magnetic attraction component is provided at the opening of the long strip channel.
[0008] In a possible implementation, the second screen surface includes a top surface and two side surfaces, the two side surfaces are arranged on both sides of the top surface, the top of the side surface is connected to the top surface, the bottom of the side surface is connected to the first screen surface, and the second screen holes are arranged on the top surface and the side surfaces.
[0009] In a possible implementation, the top surface is parallel to the first screen surface, and the side surface is perpendicular to the first screen surface.
[0010] In a possible implementation, a transition section is provided at the upstream end of the top surface, and the height of the transition section gradually decreases in the upstream direction.
[0011] In a possible implementation, a positioning member is provided on the first screen surface, and a side surface of the second screen surface is connected to the first screen surface via the positioning member.
[0012] In a possible implementation, the positioning member includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are arranged in an L shape, the first connecting portion abuts against the inner side of the side surface, and the second connecting portion abuts against the end of the side surface.
[0013] In a possible implementation, a plurality of the second screen surfaces are provided, and the plurality of second screen surfaces are arranged on the first screen surface at intervals.
[0014] In a possible implementation, a blocking member having a certain length is provided on the first screen surface, the blocking member protrudes from the first screen surface, and the height of the blocking member protruding from the first screen surface is not higher than the height of the second screen surface protruding from the first screen surface.
[0015] In a possible implementation, the blocking member is provided with Velcro.
[0016] In a possible implementation, side plates are provided on both sides of the first screen surface, and the first screen surface and the side plates on both sides form a channel for the tobacco shreds to move.
[0017] According to the tobacco screening device provided in the embodiment of the present application, since the second screen surface is arranged to bulge the first screen surface, and the second screen surface is arranged along the direction of movement of the tobacco, the contact area between the bottom of the tobacco layer and the first screen surface and the second screen surface can be effectively increased, and the filtering area of the tobacco is increased, so that a stepped contact is formed between the bottom of the tobacco layer and the first screen surface and the second screen surface, which has a stirring effect on the tobacco, increases the looseness of the tobacco when it vibrates, and is beneficial to the movement of debris in the tobacco layer. Moreover, the space near the magnetic suction component is suspended, which is more conducive to the adsorption of metal debris. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A schematic diagram of the structure of a screening device provided in an embodiment of the present application;
[0019] Figure 2 for Figure 1 A partial enlarged view of the middle A;
[0020] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;
[0021] Figure 4 An exploded view of a first screen surface and a second screen surface provided in an embodiment of the present application;
[0022] Figure 5 for Figure 4 A partial enlarged view of point C in the middle;
[0023] Figure 6 A schematic diagram of the structure of the second screen surface provided in an embodiment of the present application. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.
[0025] like Figure 1-Figure 6 As shown, the embodiment of the present application provides a tobacco screening device, which is applied to a tobacco processing production line to remove impurities from tobacco. Since metal impurities and non-metal impurities may be mixed in tobacco, when the tobacco is removed from impurities through a vibrating screen, the tobacco moves forward on the vibrating screen under the vibration of the vibrating screen. During the process of moving forward, the non-metallic impurities in the tobacco gradually sink downward and eventually fall through the sieve holes of the vibrating screen and can then be collected. For metal impurities, a magnet is usually arranged on the vibrating screen. When the tobacco moves forward through vibration, the metal impurities move toward the magnet under the action of magnetic attraction and are eventually attracted by the magnet, thereby completing the removal of impurities from the tobacco. Some disadvantages are also found in the process of removing impurities from the tobacco. It can be seen from the above-mentioned screening process that in the process of screening and removing impurities, the smoothness of the movement of impurities in the tobacco affects the efficiency of impurity removal. Under the action of vibration, the faster the impurities move, the faster the impurities are separated from the tobacco, and the better the impurity removal effect. If the impurities do not move smoothly in the tobacco, the impurity removal is not thorough, so that a certain amount of tobacco will remain in the tobacco. For example, when the accumulation thickness of tobacco in the vibrating screen is large, the tobacco cannot be sufficiently loosened during the vibration process, and the smoothness of the movement of impurities in the tobacco layer is low, which in turn affects the effect of impurity removal. The tobacco screening device of the present application aims to improve the effect of tobacco screening and impurity removal.
[0026] The tobacco screening device includes a first screen surface 100 and a second screen surface 200. The tobacco can move along a preset direction on the first screen surface 100. A plurality of first screen holes are arranged on the first screen surface 100. The second screen surface 200 has a certain length, and the second screen surface 200 is arranged on the first screen surface 100 along the moving direction of the tobacco as a whole. The second screen surface 200 protrudes from the first screen surface 100, and a plurality of second screen holes are arranged on the second screen surface 200. In one example, the first screen surface 100 can be a screen bottom of a vibrating screen. Side plates 101 are arranged on both sides of the first screen surface 100. The first screen surface 100 is arranged horizontally, and the side plates 101 and the first screen surface 100 are vertically connected. The first screen surface 100 and the side plates 101 on both sides form a channel for the tobacco to move. Under the action of vibration, the tobacco moves forward in the channel, and the preset moving direction of the tobacco on the first screen surface 100 is the forward direction under the action of vibration.
[0027] In this embodiment, the second screen surface 200 protrudes from the first screen surface 100, and the second screen surface 200 and the first screen surface 100 partially cooperate to enclose a long strip channel 300, and the long strip channel 300 is also parallel to the moving direction of the tobacco shreds. Along the moving direction of the tobacco shreds, the upstream end of the long strip channel 300 is sealed, and the downstream end of the long strip channel 300 is opened, and a magnetic suction component is arranged at the opening of the long strip channel 300. Preferably, the number of the second screen surfaces 200 is multiple, and the multiple second screen surfaces 200 are arranged at intervals, so that multiple protrusion structures are formed on the first screen surface 100 along the moving direction of the tobacco shreds, so that the first screen surface 10 0 has an uneven top. Thus, when vibrating and screening tobacco, a stepped contact is formed between the bottom of the tobacco layer and the first and second screen surfaces 100, 200, thereby increasing the contact area between the bottom of the tobacco layer and the first and second screen surfaces 100, 200, and helping to reduce the thickness of the tobacco layer. Moreover, during the vibration process, the uneven structure can also stir and subvert the tobacco, thereby helping to increase the looseness of the tobacco during vibration, thereby helping to improve the smoothness of the movement of debris in the tobacco, making non-metallic debris sink more smoothly, and metallic debris move more smoothly toward the magnetic suction component, making the screening and removal of debris on the tobacco more thorough, and effectively improving the quality of tobacco. The impurity removal effect of the tobacco is improved to prevent the residual impurities in the tobacco. In addition, the magnetic suction component is arranged at the open end of the formed long strip channel 300, and the magnetic suction component does not protrude from the long strip channel 300 enclosed by the second screen surface 200 and the first screen surface 100. Preferably, in the vertical projection, the outermost side of the magnetic suction component and the end surface of the second screen surface 200 are kept flush, and the tobacco here is thrown forward under the lifting effect of the second screen surface 200, and the space here is overhead. The tobacco will be looser when thrown forward, and the magnetic suction component is more likely to absorb the metal impurities therein. For the aperture of the first sieve hole on the first screen surface 100 and the aperture of the second sieve hole on the second screen surface 200, Both allow debris to pass through but do not allow tobacco to pass through. Under the action of the second screen hole on the second screen surface 200, a part of the debris first enters the long channel 300 formed by the second screen surface 200 and the first screen surface 100 during the movement. Then, under the action of vibration, non-metallic debris can pass through the first screen surface 100 and fall down more easily, and metal debris can also move forward more smoothly and be adsorbed by the magnetic attraction component at the opening of the long channel 300. Preferably, the magnetic attraction component includes a magnet, and a groove compatible with the magnet is provided at the opening of the long channel 300 on the first screen surface 100. The magnet is adhered to the groove by an adhesive to improve the stability of the magnet installation.
[0028] In this embodiment, the second screen surface 200 increases the filtering area for the tobacco shreds, and the uneven structure is more conducive to improving the loosening effect of the tobacco shreds, thereby effectively improving the impurity removal effect of the tobacco shreds.
[0029] Preferably, the second screen surface 200 includes a top surface 201 and two side surfaces 202. Along the moving direction of the tobacco, the two side surfaces 202 are arranged on the left and right sides of the top surface 201, the top of the side surface 202 is connected to one side of the top surface 201, and the bottom of the side surface 202 is connected to the top of the first screen surface 100, thereby enclosing a long strip channel 300. The second screen holes are arranged on the top surface 201 and the side surfaces 202. In one example, the top surface 201 and the first screen surface 100 are parallel, and the side surfaces 202 and the first screen surface 100 are perpendicular to each other, so that the cross-section of the long strip channel 300 is rectangular, and the top of the second screen surface 200 forms a flat structure as a whole, which is conducive to the movement of tobacco.
[0030] More preferably, a transition section 2011 is provided at the upstream end of the top surface 201, and in the direction of movement of the tobacco, the height of the transition section 2011 gradually decreases along the upstream direction, the downstream end of the transition section 2011 is flush with the top surface 201, the upstream end of the transition section 2011 is flush with the surface of the first screen surface 100, and the side surface 202 of the second screen surface 200 extends to the side of the transition section 2011 to block the part of the long strip channel 300. Under the action of the transition section 2011, it is more convenient for the tobacco to move to above the second screen surface 200 as it moves forward.
[0031] The second screen surface 200 can be formed by bending a porous plate, and the second screen surface 200 and the first screen surface 100 can be welded, that is, the side surface 202 of the second screen surface 200 and the top of the first screen surface 100 are welded. Preferably, a positioning member 400 is arranged on the first screen surface 100, and the side surface 202 of the second screen surface 200 is connected to the first screen surface 100 through the positioning member 400. The positioning member 400 and the first screen surface 100 are connected by welding or by an adhesive. The positioning member 400 includes a first connecting portion 401 and a second connecting portion 402, and the first connecting portion 401 and the second connecting portion 402 are vertically connected to form an L shape. After the positioning member 400 is connected to the first screen surface 100, the projection of the positioning member 400 in the vertical direction is L-shaped, and each second screen surface 200 is configured with a pair of positioning members 40 0, two positioning members 400 are arranged opposite to each other, the length direction of the first connecting part 401 is parallel to the moving direction of the tobacco shreds, the length direction of the second connecting part 402 is perpendicular to the moving direction of the tobacco shreds, one end of the second connecting part 402 is connected to one end of the first connecting part 401, and the other end of the second connecting part 402 extends toward the outside. When installing the second screen surface 200, the second screen surface 200 is buckled on the top of the first screen surface 100, so that the two first connecting parts 401 are respectively against the inner sides of the side surfaces 202 on the corresponding sides, and the second connecting part 402 is against the end of the side surface 202, and then the first connecting part 401 and the side surface 202 are connected by screws, which is convenient to install. The length of the first connecting part 401 is not less than 1 / 3 of the length of the second screen surface 200, which increases the installation stability of the second screen surface 200.
[0032] Preferably, a blocking member 500 is provided on the first screen surface 100. The blocking member 500 has a certain length, and the length direction of the blocking member 500 is perpendicular to the moving direction of the tobacco. The blocking member 500 protrudes from the top of the first screen surface 100. Due to the blocking effect of the blocking member 500, the advancement of the tobacco can be blocked to a certain extent, and the advancing speed of the tobacco can be reduced, which is conducive to more thorough removal of the sundries mixed with the tobacco. The height of the blocking member 500 protruding from the top of the first screen surface 100 is not higher than the height of the top of the second screen surface 200 protruding from the top of the first screen surface 100, that is, the height of the blocking member 500 is not higher than the height of the second screen surface 200. Preferably, the height of the blocking member 500 is less than the height of the second screen surface 200. The cross-section of the blocking member 500 is an upwardly convex semicircle. A plurality of blocking members 500 are arranged side by side in the extended area of the second screen surface 200, so as to improve the deceleration effect on the tobacco shreds and also help to improve the loosening effect on the tobacco shreds. In this embodiment, the length direction of the blocking member 500 and the length direction of the second screen surface 200 are perpendicular to each other. The blocking member 500 is arranged at the bottom of the first screen surface 100 and the blocking member 500 passes through the side surface 202 of the second screen surface 200. The height of the blocking member 500 will not block the long strip channel 300. More preferably, a Velcro is provided on the blocking member 500, and the Velcro is attached to the top of the blocking member 500. When the tobacco shreds pass through, the hemp thread in the tobacco shreds can be effectively removed, thereby improving the tobacco shreds impurity removal effect.
[0033] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.
[0034] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).
[0035] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.
[0036] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A tobacco screening device, characterized in that: include: a first screen surface, on which the tobacco can move along a preset direction, and on which a plurality of first screen holes are arranged; A second screen surface is provided on the first screen surface and is raised along the moving direction of the tobacco shreds, and a plurality of second screen holes are provided on the second screen surface; The second screen surface and the first screen surface partially enclose a long strip channel. Along the moving direction of the tobacco shreds, the upstream end of the long strip channel is sealed, the downstream end of the long strip channel is open, and a magnetic attraction component is provided at the opening of the long strip channel.
2. A tobacco screening device according to claim 1, characterized in that: The second screen surface includes a top surface and two side surfaces, the two side surfaces are respectively arranged on both sides of the top surface, the top of the side surface is connected to the top surface, the bottom of the side surface is connected to the first screen surface, and the second screen holes are arranged on the top surface and the side surfaces.
3. A tobacco screening device according to claim 2, characterized in that: The top surface is parallel to the first screen surface, and the side surface is perpendicular to the first screen surface.
4. A tobacco screening device according to claim 3, characterized in that: A transition section is provided at the upstream end of the top surface, and the height of the transition section gradually decreases in the upstream direction.
5. The tobacco screening device according to claim 3, characterized in that: The first screen surface is provided with a positioning piece, and the side surface of the second screen surface is connected to the first screen surface through the positioning piece.
6. A tobacco screening device according to claim 5, characterized in that: The positioning member includes a first connection portion and a second connection portion, wherein the first connection portion and the second connection portion are arranged in an L shape, the first connection portion abuts against the inner side of the side surface, and the second connection portion abuts against the end of the side surface.
7. The tobacco screening device according to claim 1, characterized in that: A plurality of the second screen surfaces are provided, and the plurality of second screen surfaces are arranged on the first screen surface at intervals.
8. The tobacco screening device according to claim 1, characterized in that: A blocking member with a certain length is arranged on the first screen surface, the blocking member protrudes from the first screen surface, and the height of the blocking member protruding from the first screen surface is not higher than the height of the second screen surface protruding from the first screen surface.
9. A tobacco screening device according to claim 8, characterized in that: The blocking piece is provided with Velcro.
10. The tobacco screening device according to claim 1, characterized in that: Side plates are arranged on both sides of the first screen surface, and the first screen surface and the side plates on both sides form a channel for tobacco shreds to move.