Separating device for tobacco shreds and stem slivers

Abstract

The utility model relates to a tobacco shred and stem sliver separating device which comprises a tobacco shred collecting box. The winnowing pipe is vertically arranged, a feeding opening is formed in the side, close to the bottom, of the winnowing pipe, and the top of the winnowing pipe communicates with the cut tobacco collecting box; the thrower is arranged at the feeding hole and is configured to convey a mixture of cut tobacco and stem slivers into the winnowing pipe; and the fan is communicated with the winnowing pipe, and the fan is configured to provide power for promoting the mixture to move along the winnowing pipe into the winnowing pipe, so that the heavier stem slivers fall into the bottom of the winnowing pipe, and the lighter tobacco shreds enter the tobacco shred collecting box along the winnowing pipe. The winnowing pipe is vertically arranged, so that heavy stems can fall into the bottom of the winnowing pipe, light tobacco shreds can enter the tobacco shred collecting box along the winnowing pipe under the condition of power provided by the fan, and separation of the tobacco shreds and the stems is achieved; the device can be used for further sorting the stem slivers removed after winnowing of a tobacco shred processing production processing system, and the problem of waste caused by mistaken removal of tobacco shreds on a production line is solved.

Description

Technical Field

[0001] The utility model relates to the field of tobacco equipment, in particular to a device for separating shredded tobacco and stems. Background Art

[0002] In some related technologies, equipment for separating shredded tobacco and stem sticks is arranged on the tobacco processing production line. Since the equipment on the production line is large in size and complex in structure, the air flow in the space for air separation of shredded tobacco and stem sticks fluctuates greatly, resulting in a portion of shredded tobacco still being carried with the stem sticks after the separation of the shredded tobacco. If these shredded tobacco are treated as waste along with the stem sticks, it will cause a waste of resources. Utility Model Content

[0003] Some embodiments of the present invention provide a device for separating shredded tobacco and stems, which is used for off-line separation of shredded tobacco and stems.

[0004] In one aspect of the utility model, a device for separating shredded tobacco and stems is provided, comprising:

[0005] Tobacco collection box;

[0006] A wind selection tube is vertically arranged, a feeding port is arranged on one side of the wind selection tube close to the bottom, and the top of the wind selection tube is connected to the tobacco collection box;

[0007] a thrower, disposed at the feed inlet, configured to convey a mixture of shredded tobacco and stems into the air selection tube; and

[0008] A fan is connected to the air separation tube, and the fan is configured to provide power to the air separation tube to cause the mixture to move along the air separation tube, and to make the heavier stems fall to the bottom of the air separation tube, and the lighter tobacco shreds enter the tobacco collection box along the air separation tube.

[0009] In some embodiments, the thrower includes a first roller, which is provided with a plurality of throw plates at circumferential intervals, and the first roller rotates to throw the mixture carried between two adjacent throw plates toward the air separation tube.

[0010] In some embodiments, the feed port is configured to form a first air lock, and the ejector plate cooperates with the inner wall of the feed port to form the first air lock.

[0011] In some embodiments, a discharge port is provided at the bottom of the tobacco collection box, and a discharger is provided at the discharge port. The discharger includes a second roller, and a plurality of plates are provided on the second roller. The second roller is configured to rotate so as to carry tobacco between two adjacent plates and discharge the tobacco from the tobacco collection box.

[0012] In some embodiments, the discharge port is configured to form a second air lock, and the plate cooperates with the inner wall of the discharge port to form a second air lock.

[0013] In some embodiments, the device for separating shredded tobacco and stems also includes a drop hopper, which includes a top inlet and a bottom outlet, and the size of the drop hopper gradually decreases from the top inlet to the bottom outlet, and the top inlet is configured to receive a mixture of shredded tobacco and stems, and the bottom outlet is located above the feed port and is connected to the feed port.

[0014] In some embodiments, the device for separating shredded tobacco and stems also includes a loosener, which is arranged in the drop hopper, and includes a third roller and a fourth roller, and the third roller and the fourth roller are respectively provided with a plurality of roller needles, and the third roller and the fourth roller rotate to loosen the mixture of shredded tobacco and stems through the roller needles.

[0015] In some embodiments, the device for separating shredded tobacco and stems also includes a lifting belt, which is configured to move vertically, with the top of the lifting belt located above the drop hopper, and a plurality of lifting plates are provided at intervals on the lifting belt, and the lifting belt is configured to move upward so that the mixture of shredded tobacco and stems carried between two adjacent lifting plates is lifted above the drop hopper and falls into the drop hopper.

[0016] In some embodiments, the device for separating shredded tobacco from stems further comprises a collecting hopper, which is disposed below the lifting belt and is configured to collect a mixture of shredded tobacco and stems.

[0017] In some embodiments, the device for separating shredded tobacco and stems also includes a conveying tube, a first end of which is connected to the top of the air separation tube, a second end of which is connected to the tobacco collection box, and a radial dimension of the conveying tube is smaller than a radial dimension of the air separation tube.

[0018] Based on the above technical solution, the utility model has at least the following beneficial effects:

[0019] In some embodiments, the air separation tube of the device for separating shredded tobacco and stem picks is arranged vertically, which is conducive to the heavier stem picks falling into the bottom of the air separation tube, and is also conducive to the lighter shredded tobacco entering the tobacco collection box along the air separation tube under the power provided by the fan, thereby realizing the separation of shredded tobacco and stem picks; furthermore, the device for separating shredded tobacco and stem picks can be used to further sort the stem picks removed after air separation in the tobacco processing production system, and recover the shredded tobacco mixed in the stem picks, so as to achieve the purpose of removing the picks and keeping the shredded tobacco, so as to solve the waste problem caused by the accidental removal of shredded tobacco on the production line; and the device for separating shredded tobacco and stem picks is an offline shredded tobacco recovery device in stem picks, which is easy to move and suitable for different production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary 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. In the drawings:

[0021] Figure 1 A schematic diagram of a device for separating shredded tobacco and stems provided according to some embodiments of the utility model;

[0022] Figure 2 A schematic diagram of a thrower provided according to some embodiments of the utility model;

[0023] Figure 3 It is a schematic diagram of a loosener provided according to some embodiments of the utility model.

[0024] The reference numerals in the accompanying drawings are described as follows:

[0025] 1- tobacco collection box; 11- discharge port; 2- air selection tube; 21- feed port; 3- ejector; 31- first roller; 32- ejector plate; 4- fan; 51- first air lock; 52- second air lock; 53- ejector; 6- drop hopper; 7- loosener; 71- third roller; 72- fourth roller; 8- lifting belt; 9- collecting hopper; 10- conveying pipe.

[0026] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0028] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] In the present invention, when a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediate device, or may not be directly connected to the other devices but have an intermediate device.

[0030] All terms (including technical terms or scientific terms) used in the present invention have the same meanings as those understood by ordinary technicians in the field to which the present invention belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0032] Figure 1 Schematic diagram of the structure of some embodiments of the device for separating shredded tobacco and stems according to the utility model. Figure 1 In some embodiments, the device for separating shredded tobacco and stems includes a shredded tobacco collecting box 1 , an air separation tube 2 , a thrower 3 and a fan 4 .

[0033] The air selection tube 2 is arranged vertically, and a feed port 21 is provided on one side of the air selection tube 2 close to the bottom, and the top of the air selection tube 2 is connected to the tobacco collection box 1 .

[0034] The thrower 3 is disposed in the feed port 21 , and is configured to convey a mixture of shredded tobacco and stems into the air selection tube 2 .

[0035] The fan 4 is connected to the air selection tube 2, and the fan 4 is configured to provide power to the air selection tube 2 to cause the mixture to move along the air selection tube 2, and to make the heavier stems fall to the bottom of the air selection tube 2, and the lighter tobacco enters the tobacco collection box 1 along the air selection tube 2.

[0036] In some related technologies, equipment for separating shredded tobacco and stem sticks is arranged on the tobacco processing production line. Since the equipment on the production line is large in size and complex in structure, the air flow in the space for air separation of shredded tobacco and stem sticks fluctuates greatly, resulting in a portion of shredded tobacco still being carried with the stem sticks after the separation of the shredded tobacco. If these shredded tobacco are treated as waste along with the stem sticks, it will cause a waste of resources.

[0037] Based on this, the embodiment of the utility model provides a device for separating shredded tobacco from stems, which further sorts the stems removed by the tobacco processing system after air separation, and recovers the shredded tobacco mixed in the stems, so as to achieve the purpose of removing the stems and leaving the shredded tobacco, thereby solving the problem of waste caused by the accidental removal of shredded tobacco on the production line. The device for separating shredded tobacco from stems provided by the embodiment of the utility model is an offline shredded tobacco recovery device, which is easy to move and suitable for different production lines.

[0038] In the above embodiment, the air separation tube 2 is arranged vertically, which is conducive to the heavier stems falling into the bottom of the air separation tube 2, and is also conducive to the lighter tobacco shreds entering the tobacco shred collection box 1 along the air separation tube 2 under the power provided by the fan. In addition, there are no other components and structures in the air separation tube 2, which will not interfere with the separation of tobacco shreds and stems, thereby improving the separation effect.

[0039] Optionally, the air selection tube 2 is arranged vertically.

[0040] In some embodiments, the working process of the device for separating shredded tobacco and stems is as follows:

[0041] The mixture of shredded tobacco and stems is sent into the air separation tube 2 through the thrower 3, and the fan 4 provides power to the air separation tube 2 to cause the mixture to move along the air separation tube 2, so that the heavier stems fall to the bottom of the air separation tube 2, and the lighter shredded tobacco enters the tobacco collecting box 1 along the air separation tube 2 to recover the shredded tobacco mixed in the stems.

[0042] The fan 4 can provide suction force or blowing force into the air selection tube 2, or there are multiple fans 4, at least one fan 4 provides suction force into the air selection tube 2, and at least one fan 4 provides blowing force into the air selection tube 2.

[0043] refer to Figure 1 and Figure 2 In some embodiments, the thrower 3 includes a first roller 31 , and a plurality of throwing plates 32 are provided at circumferential intervals on the first roller 31 . The first roller 31 rotates to throw the mixture carried between two adjacent throwing plates 32 toward the air separation tube 2 .

[0044] In the above embodiment, the throwing plates 32 extend along the axial direction of the first roller 31. During the rotation of the first roller 31, a pair of adjacent throwing plates 32 receive the mixture and can carry the mixture to rotate. When the two adjacent throwing plates 32 are aligned with the feed position of the air separation tube 2, the mixture between the two adjacent throwing plates 32 is thrown toward the air separation tube 2. The working process of the other two adjacent throwing plates 32 is the same.

[0045] In some embodiments, the feed port 21 is configured to form a first air lock, and the ejector plate 32 cooperates with the inner wall of the feed port 21 to form a first air lock 51 .

[0046] In the above embodiment, the first end of the throwing plate 32 is connected to the first roller 31, and the second end of the throwing plate 32 extends in the direction away from the first roller 31. There is a small gap between the second end of the throwing plate 32 and the inner wall of the feed port 21, so that the throwing plate 32 will not rub against the inner wall of the feed port 21 during the rotation of the first roller 31, and the second end of the throwing plate 32 can be as close to the inner wall of the feed port 21 as possible to form an air lock, thereby preventing external airflow from entering the air selection tube 2, maintaining the pressure in the air selection tube 2, and stabilizing the airflow in the air selection tube 2, which is beneficial to the separation between the stems and the tobacco.

[0047] The thrower 3 cooperates with the inner wall of the feed port 21 to form an air lock, which can not only realize the throwing of the mixture, but also enable the air selection tube 2 to form an air lock at the feed port 21, and the structure is simple and compact.

[0048] Figure 2 Schematic diagram of the first air lock 51 formed by the ejection plate 32 and the inner wall of the feed port 21. Figure 2 In the figure, the opening position of the inner wall of the feed port 21 for receiving the mixture and the opening position of the inner wall of the feed port 21 for sending the mixture into the air separation tube 2 are aligned vertically, but it is not limited to this. The opening position of the inner wall of the feed port 21 for receiving the mixture and the opening position of the inner wall of the feed port 21 for sending the mixture into the air separation tube 2 can be adjusted according to the actual installation position.

[0049] In some embodiments, a discharge port 11 is provided at the bottom of the tobacco collection box 1, and a discharger 53 is provided at the discharge port 11. The discharger 53 includes a second roller, and a plurality of plates are provided on the second roller. The second roller is configured to rotate so as to carry tobacco between two adjacent plates and deliver the tobacco from the tobacco collection box 1.

[0050] In the above embodiment, the structure of the discharger 53 at the discharge port 11 is similar to that of the ejector 3, and the drawings are not provided.

[0051] In some embodiments, the discharge port 11 is configured to form a second air lock, and the plate cooperates with the inner wall of the discharge port 11 to form a second air lock 52 .

[0052] In the above embodiment, the discharger 53 cooperates with the inner wall of the discharge port 11 to form an air lock, which can not only realize the delivery of tobacco shreds, but also enable the air selection tube 2 to form an air lock at the discharge port 11, preventing external airflow from entering the air selection tube 2, maintaining the pressure in the air selection tube 2, and making the airflow in the air selection tube 2 stable, which is beneficial to the separation between stems and tobacco shreds.

[0053] In some embodiments, a first air lock 51 is formed at the feed port 21 of the air selection tube 2, and a second air lock 52 is formed at the discharge port 11 of the tobacco collection box 1. The first air lock 51 and the second air lock 52 cooperate to prevent external airflow from entering the air selection tube 2, so that the airflow in the air selection tube 2 remains stable, avoiding the generation of vortices, and improving the separation effect of tobacco and stems.

[0054] In some embodiments, the device for separating shredded tobacco and stems also includes a drop hopper 6, which includes a top inlet and a bottom outlet. The size of the drop hopper 6 gradually decreases from the top inlet to the bottom outlet. The top inlet is configured to receive a mixture of shredded tobacco and stems. The bottom outlet is located above the feed port 21 and is connected to the feed port 21.

[0055] In the above embodiment, the size of the drop hopper 6 gradually decreases from the top inlet to the bottom outlet, which is conducive to the mixture to smoothly merge from the top inlet into the bottom outlet, enter the feed port 21 from the bottom outlet, and then reach between two adjacent throwing plates 32 of the thrower 3.

[0056] refer to Figure 1 and Figure 3 In some embodiments, the device for separating shredded tobacco and stems further includes a loosener 7, which is disposed in the drop hopper 6. The loosener 7 includes a third roller 71 and a fourth roller 72. The third roller 71 and the fourth roller 72 are respectively provided with a plurality of roller needles. The third roller 71 and the fourth roller 72 rotate to loosen the mixture of shredded tobacco and stems through the roller needles.

[0057] In the above embodiment, the roller needles on the third roller 71 and the roller needles on the fourth roller 72 have a mutually overlapping portion. The roller needles of the third roller 71 and the fourth roller 72 will penetrate into the mixture of shredded tobacco and stems, so that the mixture is moved and lifted to achieve a loosening effect.

[0058] refer to Figure 1 In some embodiments, the device for separating shredded tobacco and stems further comprises a lifting belt 8, which is configured to move vertically, with the top of the lifting belt 8 located above the drop hopper 6, and a plurality of lifting plates are provided on the lifting belt 8 at intervals, and the lifting belt 8 is configured to move upward so that the mixture of shredded tobacco and stems carried between two adjacent lifting plates is lifted to the top of the drop hopper 6 and falls into the drop hopper 6.

[0059] Since the mixture of shredded tobacco and stems is in a clumping shape, the mixture of shredded tobacco and stems can be carried upward between two adjacent lifting plates to be lifted to the top of the drop hopper 6 and fall into the drop hopper 6 .

[0060] In some embodiments, the device for separating shredded tobacco and stems further comprises a collecting hopper 9, which is disposed below the lifting belt 8 and is configured to collect the mixture of shredded tobacco and stems.

[0061] In the above embodiment, the mixture of shredded tobacco and stems produced after air selection on the shredded tobacco processing production line can be fed into the collecting hopper 9.

[0062] In some embodiments, the device for separating shredded tobacco and stems also includes a conveying pipe 10, a first end of the conveying pipe 10 is connected to the top of the air selection tube 2, a second end of the conveying pipe 10 is connected to the shredded tobacco collecting box 1, and a radial dimension of the conveying pipe 10 is smaller than a radial dimension of the air selection tube 2.

[0063] In the above embodiment, the radial dimension of the air separation tube 2 is larger in order to accommodate more airflow, reduce wind speed, make the material easier to separate under the action of wind, avoid excessive wind speed, and make the stems flow with the tobacco to the tobacco collection box 1, thereby improving the air separation efficiency.

[0064] In the above embodiment, the radial dimension of the conveying tube 10 is relatively small. Under the condition of the same air volume, the wind speed will be increased, so as to better promote the conveying of tobacco in the conveying tube 10 .

[0065] In the above embodiment, the conveying pipe 10 is arranged horizontally, the first end of the conveying pipe 10 is connected to the top of the air separation pipe 2, and the second end of the conveying pipe 10 is connected to the tobacco collection box 1.

[0066] In some embodiments, the specific working process of the device for separating shredded tobacco and stems is as follows:

[0067] The mixture of shredded tobacco and stems is collected in the collecting hopper 9, and the lifting belt 8 moves upward. The mixture of shredded tobacco and stems can be carried between two adjacent lifting plates, and the mixture is lifted to the top of the drop hopper 6, and the mixture falls into the drop hopper 6. The size of the drop hopper 6 gradually decreases from the top inlet to the bottom outlet, which is conducive to the mixture entering the bottom outlet smoothly from the top inlet. In this process, the third roller 71 and the fourth roller 72 of the loosener 7 arranged in the drop hopper 6 rotate to loosen the mixture of shredded tobacco and stems through the roller needles. The loosened mixture reaches the bottom outlet of the drop hopper 6 and falls. The bottom outlet of the hopper 6 is arranged above the feed port 21 and is connected to the feed port 21. Therefore, the mixture falls to the thrower 3 arranged in the feed port 21. The two adjacent thrower plates 31 of the thrower 3 carry the mixture and throw the mixture into the air separation tube 2. The fan 4 provides power to the air separation tube 2 to cause the mixture to move along the air separation tube 2, and makes the heavier stems fall to the bottom of the air separation tube 2, and the lighter tobacco enters the tobacco collecting box 1 along the air separation tube 2 to recover the tobacco mixed in the stems. The recovered tobacco is discharged from the tobacco collecting box 1 through the discharger 53 and the second air lock 52.

[0068] Based on the above-mentioned embodiments of the present invention, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0069] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A device for separating shredded tobacco and stems, characterized in that: include: Tobacco collection box (1); A wind selection tube (2) is arranged vertically, a feeding port (21) is provided on one side of the wind selection tube (2) close to the bottom, and the top of the wind selection tube (2) is connected to the tobacco collection box (1); a thrower (3), arranged at the feed inlet (21), the thrower (3) being configured to convey a mixture of shredded tobacco and stems into the air selection tube (2); and A fan (4) is connected to the air separation tube (2), and the fan (4) is configured to provide power to the air separation tube (2) to cause the mixture to move along the air separation tube (2), so that the heavier stems fall to the bottom of the air separation tube (2), and the lighter shredded tobacco enters the shredded tobacco collection box (1) along the air separation tube (2).

2. The device for separating shredded tobacco and stems according to claim 1, characterized in that: The thrower (3) comprises a first roller (31), a plurality of thrower plates (32) are provided at intervals in the circumferential direction of the first roller (31), and the first roller (31) rotates so that the mixture carried between two adjacent thrower plates (32) is thrown toward the air separation tube (2).

3. The device for separating shredded tobacco and stems according to claim 2, characterized in that: The feed port (21) is configured to form a first air lock, and the ejector plate (32) cooperates with the inner wall of the feed port (21) to form a first air lock (51).

4. The device for separating shredded tobacco and stems according to claim 1, characterized in that: The bottom of the tobacco collection box (1) is provided with a discharge port (11), and a discharge device (53) is provided at the discharge port (11). The discharge device (53) includes a second roller, and a plurality of plates are provided on the second roller. The second roller is configured to rotate so as to carry tobacco between two adjacent plates and discharge the tobacco from the tobacco collection box (1).

5. The device for separating shredded tobacco and stems according to claim 4, characterized in that: The discharge port (11) is configured to form a second air lock, and the plate and the inner wall of the discharge port (11) cooperate to form a second air lock (52).

6. The device for separating shredded tobacco and stems according to claim 1, characterized in that: The invention also comprises a drop hopper (6), wherein the drop hopper (6) comprises a top inlet and a bottom outlet, and the size of the drop hopper (6) gradually decreases in the direction from the top inlet to the bottom outlet, wherein the top inlet is configured to receive a mixture of shredded tobacco and stems, and the bottom outlet is arranged above the feed port (21) and is communicated with the feed port (21).

7. The device for separating shredded tobacco and stems according to claim 6, characterized in that: The invention also comprises a loosener (7), wherein the loosener (7) is arranged in the drop hopper (6), and the loosener (7) comprises a third roller (71) and a fourth roller (72), wherein the third roller (71) and the fourth roller (72) are respectively provided with a plurality of roller needles, and the third roller (71) and the fourth roller (72) rotate to loosen the mixture of shredded tobacco and stems through the roller needles.

8. The device for separating shredded tobacco and stems according to claim 6, characterized in that: The invention also comprises a lifting belt (8), wherein the lifting belt (8) is configured to move vertically, the top of the lifting belt (8) is located above the drop hopper (6), a plurality of lifting plates are arranged at intervals on the lifting belt (8), and the lifting belt (8) is configured to move upward so that the mixture of shredded tobacco and stems carried between two adjacent lifting plates is lifted to the top of the drop hopper (6) and falls into the drop hopper (6).

9. The device for separating shredded tobacco and stems according to claim 8, characterized in that: It also comprises a collecting hopper (9), which is arranged below the lifting belt (8) and is configured to collect a mixture of shredded tobacco and stems.

10. The device for separating shredded tobacco and stems according to claim 1, characterized in that: It also includes a conveying pipe (10), the first end of which is connected to the top of the air selection tube (2), the second end of which is connected to the tobacco collection box (1), and the radial dimension of the conveying pipe (10) is smaller than the radial dimension of the air selection tube (2).

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