A stemmer removing device

Abstract

The utility model belongs to tobacco processing technical field discloses a kind of stem signature rejection devices, including upper bin, middle bin, lower bin, conveyer belt and adjusting plate, upper bin one end is equipped with ventilation opening, upper bin is connected with air pipe, air pipe is communicated with the inside of upper bin by ventilation opening, the end of air pipe, away from upper bin, is connected with fan;Middle bin one end is communicated with the end of upper bin, away from ventilation opening, and middle bin is equipped with feed inlet, and middle bin is communicated with outside by feed inlet;Lower bin one end is communicated with the end of middle bin, away from upper bin, and other end is equipped with drop opening, and upper bin, middle bin, lower bin are sequentially arranged along vertical direction;The output end of conveyer belt is set in feed inlet, so that mixture material enters the inside of middle bin by feed inlet, and adjusting plate is slidably arranged in middle bin, to adjust the communication area of feed inlet and outside. In this way, the rejection of stem signature is realized by winnowing, which can reduce the risk of secondary crushing of fragments and improve the rejection effect of stem signature.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a stem removal device. Background Technology

[0002] In tobacco processing, threshing and re-drying is one of the main steps in processing tobacco raw materials. During this process, tobacco leaf fragments and stems, as by-products of threshing and re-drying, can be packaged as finished products and enter subsequent processing steps after screening and drying. Stems are small tobacco stems that need to be removed to ensure the purity of the fragments.

[0003] In related technologies, a geared motor is usually used to drive a throwing roller to scatter fragments. However, when the fragments come into rigid contact with the throwing roller, they may be further broken, affecting the quality of the fragments. Furthermore, it is difficult to completely remove the stalks during the removal process, and the remaining stalks may affect subsequent processing steps. Utility Model Content

[0004] The purpose of this invention is to provide a stem removal device to solve the problem of poor removal effect of existing removal devices.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A stem removal device includes: an upper chamber with a ventilation opening at one end, a duct connected to the upper chamber, the duct communicating with the interior of the upper chamber through the ventilation opening, and a fan connected to the end of the duct facing away from the upper chamber to allow airflow from the interior of the upper chamber to the outside; a middle chamber with one end connected to the end of the upper chamber facing away from the ventilation opening, and a feed inlet communicating with the outside; a lower chamber with one end connected to the end of the middle chamber facing away from the upper chamber, and a discharge outlet at the other end; the upper chamber, middle chamber, and lower chamber are arranged vertically in sequence; a conveyor belt and an adjusting plate, the output end of the conveyor belt being located at the feed inlet to allow mixed materials to enter the interior of the middle chamber through the feed inlet; and the adjusting plate being slidably disposed in the middle chamber to adjust the communication area between the feed inlet and the outside.

[0007] Preferably, the cross-sectional area of ​​the lower compartment body away from the middle compartment body is smaller than the cross-sectional area of ​​the lower compartment body facing the middle compartment body.

[0008] Preferably, a limiting groove is provided on the middle compartment, and the adjusting plate is slidably disposed in the limiting groove along the extension direction of the limiting groove. The adjusting plate is connected to a fixing member, which is connected to the middle compartment and is used to limit the relative position of the adjusting plate and the middle compartment.

[0009] Preferably, the limiting groove extends in the vertical direction.

[0010] Preferably, the central compartment is provided with an observation section made of transparent material.

[0011] Preferably, there are two observation sections, which are respectively located on opposite sides of the central chamber, and the feed inlet is located between the two observation sections.

[0012] Preferably, the lower compartment is provided with an air supply hole so that the lower compartment can communicate with the outside world through the air supply hole.

[0013] Preferably, the air supply hole is located on the side wall of the lower compartment in the conveying direction of the conveyor belt.

[0014] Preferably, the cross-sectional area of ​​the material discharge port is smaller than the cross-sectional area of ​​the ventilation port.

[0015] Preferably, the stem removal device further includes a support frame, and the upper compartment, the middle compartment, and the lower compartment are all detachably mounted on the support frame.

[0016] The beneficial effects of this utility model are:

[0017] A stem removal device includes an upper chamber, a middle chamber, a lower chamber, a conveyor belt, and an adjusting plate. The upper chamber has a ventilation opening at one end and is connected to an air duct. The air duct communicates with the interior of the upper chamber through the ventilation opening. A fan is connected to the end of the air duct facing away from the upper chamber to allow airflow from inside the upper chamber to the outside. The middle chamber is connected at one end to the end of the upper chamber facing away from the ventilation opening and has a feed inlet, which communicates with the outside. The lower chamber is connected at one end to the end of the middle chamber facing away from the upper chamber, and has a discharge outlet at the other end. The upper, middle, and lower chambers are arranged vertically in sequence. The output end of the conveyor belt is located at the feed inlet, allowing the mixed material to enter the middle chamber through the feed inlet. The adjusting plate is slidably disposed within the middle chamber to adjust the communication area between the feed inlet and the outside.

[0018] In this way, the conveyor belt can transport the mixed materials into the middle chamber, and the fan can drive the airflow from bottom to top, so that the lighter and larger fragments can flow into the air duct and be transported to the outside under the action of the airflow, while the heavier and smaller stems can be transported to the bottom of the lower chamber under their own gravity. The stems can be removed by flexible air separation, which can avoid direct collision between fragments and mechanical structures, reduce the risk of secondary breakage of fragments, and improve the removal effect. Attached Figure Description

[0019] Figure 1 This is a front view of the stem removal device in one embodiment of the present invention.

[0020] In the picture:

[0021] 1. Upper chamber; 11. Ventilation opening; 2. Middle chamber; 21. Observation section; 3. Lower chamber; 31. Material discharge port; 32. Air supply hole; 4. Conveyor belt; 5. Adjusting plate; 6. Support frame; 61. Support leg. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0026] See Figure 1This utility model provides a stem removal device, including an upper chamber 1, a middle chamber 2, a lower chamber 3, a conveyor belt 4, and an adjusting plate 5. One end of the upper chamber 1 has a ventilation opening 11, and an air duct is connected to the upper chamber 1. The air duct communicates with the interior of the upper chamber 1 through the ventilation opening 11. A fan (not shown in the figure) is connected to the end of the air duct facing away from the upper chamber 1 to allow airflow from inside the upper chamber 1 to the outside. One end of the middle chamber 2 is connected to the end of the upper chamber 1 facing away from the ventilation opening 11. The middle chamber 2 has a feed inlet, which connects it to the outside. One end of the lower chamber 3 is connected to the end of the middle chamber 2 that is away from the upper chamber 1, and the other end has a discharge port 31. The upper chamber 1, middle chamber 2, and lower chamber 3 are arranged in sequence along the vertical direction. The output end of the conveyor belt 4 is located at the feed inlet so that the mixed material enters the middle chamber 2 through the feed inlet. The adjusting plate 5 is slidably set in the middle chamber 2 to adjust the connection area between the feed inlet and the outside.

[0027] In this embodiment, the cross-section of the upper chamber 1 connected to the air duct is circular, and the cross-section of the upper chamber 1 connected to the middle chamber 2 is square. The middle chamber 2 is a cuboid structure with a constant cross-sectional area. The cross-sectional area of ​​the end where the upper chamber 1 is connected to the middle chamber 2 and the cross-sectional area of ​​the end where the lower chamber 3 is connected to the middle chamber 2 are both equal to the cross-sectional area of ​​the middle chamber 2. The fan makes the gas flow direction from the upper chamber 1 to the outside, and the gas flow direction inside the stalk removal device is from the lower chamber 3 to the upper chamber 1. The feed inlet extends along the width direction of the middle chamber 2, and the conveyor belt 4 extends along the horizontal direction and conveys the mixed material (that is, the material to be removed containing fragments and stalks) into the middle chamber 2. The adjusting plate 5 is slidably set in the middle chamber 2 along the vertical direction.

[0028] Thus, the mixed materials are conveyed to the interior of the middle chamber 2 via conveyor belt 4. The fan drives the airflow from bottom to top, forming a stable vertical airflow channel. Lighter, larger fragments flow towards the air duct and are transported to the outside under the action of the airflow, while heavier, smaller stalks fall through the drop port 31 to the bottom of the lower chamber 3 under their own gravity. By using air separation to remove stalks, direct collisions between fragments and mechanical structures can be avoided, reducing the risk of secondary breakage of fragments and improving the removal efficiency of stalks.

[0029] It is understandable that sealing rings can be installed between the upper chamber 1 and the middle chamber 2, and between the middle chamber 2 and the lower chamber 3, so as to seal the connection between the upper chamber 1, the middle chamber 2, and the lower chamber 3 and prevent materials from leaking to the outside.

[0030] See Figure 1 In some embodiments, the cross-sectional area of ​​the lower compartment 3 away from the middle compartment 2 is smaller than the cross-sectional area of ​​the lower compartment 3 facing the middle compartment 2. In this embodiment, the lower compartment 3 is a frustum structure.

[0031] In this way, the cross-sectional area of ​​the lower chamber 3 gradually decreases, which allows the rejected sticks to be guided by the inclined side of the lower chamber 3 and gathered at the discharge port 31 for discharge, avoiding the sticks from being stuck or suspended in the lower chamber 3, and making the airflow in the lower chamber 3 more stable, thus improving the rejection effect.

[0032] It is understandable that the lower compartment 3 can also be a structure with a larger top and a smaller bottom, such as a frustum. The shape of the lower compartment 3 can be adjusted according to actual needs, which will not be elaborated here.

[0033] See Figure 1 In some embodiments, a limiting groove (not shown in the figure) is formed on the middle compartment 2. The adjusting plate 5 is slidably disposed in the limiting groove along the extension direction of the limiting groove. A fixing member (not shown in the figure) is connected to the adjusting plate 5 and the middle compartment 2 to limit the relative position of the adjusting plate 5 and the middle compartment 2. Further, in some embodiments, the limiting groove extends in a vertical direction.

[0034] In this embodiment, two limiting grooves are provided. A slider (not shown in the figure) is fixedly connected to the position of the limiting groove on the adjusting plate 5. The slider is slidably disposed in the limiting groove. The fixing component is a bolt, which is fixedly connected to the slider. A nut is threaded on the bolt. Tightening the nut makes the nut abut against the middle chamber 2, which can limit the relative position of the adjusting plate 5 and the middle chamber 2.

[0035] In this way, the limiting groove can restrict the movement direction of the adjusting plate 5, so that the adjusting plate 5 can slide stably in the vertical direction. By adjusting the area of ​​the adjusting plate 5 blocking the feed inlet, the connection area between the feed inlet and the outside can be adjusted, thereby controlling the supplementary air volume and feed volume according to actual needs, and avoiding insufficient or excessive air volume from affecting the rejection effect.

[0036] It is understandable that the fasteners can also be structures such as clips or fixing pins, as long as they can restrict the position of the insert plate, and will not be listed in detail here.

[0037] See Figure 1 In some embodiments, the central chamber 2 is provided with an observation section 21 made of a transparent material. In this embodiment, the observation section 21 is made of plexiglass and is located on the side wall adjacent to or opposite the feed inlet to facilitate observation of the material rejection process inside the central chamber 2.

[0038] Thus, the observation section 21 made of plexiglass not only facilitates observation of the interior of the storage chamber 2, but also has sufficient strength to separate the mixed materials inside the storage chamber 2 under the action of wind. By observing the removal of materials inside the storage chamber 2 through the observation section 21, the air volume of the air duct and the connection area between the feed inlet and the outside can be adjusted according to the removal effect, thereby improving the removal effect of the sticks and reducing the risk of secondary breakage of the fragments.

[0039] It is understandable that the observation section 21 can also be made of transparent plastic material. The material and location of the observation section 21 can be adjusted according to actual needs, and will not be listed in detail here.

[0040] See Figure 1 In some embodiments, two observation sections 21 are provided, with the two observation sections 21 respectively located on opposite sides of the central chamber 2, and the feed inlet is located between the two observation sections 21. That is, the two observation sections 21 are located on two side walls adjacent to the feed inlet.

[0041] Thus, observation sections 21 are provided on opposite sides of the central storage 2, which allows staff to observe the movement of materials inside the central storage 2 from different angles and adjust parameters such as feed rate, air volume, and opening of the regulating plate 5 in a timely manner, thereby improving the accuracy of removing stuck items.

[0042] It is understandable that the number of observation units 21 is not limited to two; it can also be one, three, etc., which will not be listed in detail here.

[0043] See Figure 1 In some embodiments, the lower compartment 3 is provided with an air supply hole 32 to allow the lower compartment 3 to communicate with the outside through the air supply hole 32. In this embodiment, the air supply hole 32 is provided on the side wall of the lower compartment 3.

[0044] Thus, the air supply hole 32 allows outside air to enter the lower chamber 3 and the middle chamber 2 under air pressure, so that the air pressure inside the stem removal device can be kept balanced, avoiding the instability of air pressure in the middle chamber 2 from affecting the removal effect. The airflow entering the lower chamber 3 horizontally through the air supply hole 32 and the vertical airflow generated by the fan form a composite flow field, further breaking the adhesion between the stem and the fragments and improving the stem removal effect.

[0045] See Figure 1 In some embodiments, the air supply hole 32 is opened on the side wall of the lower compartment 3 in the conveying direction of the conveyor belt 4.

[0046] In this embodiment, the air supply hole 32 is a round hole, and multiple air supply holes 32 are provided. The multiple air supply holes 32 are symmetrically arranged on two opposite side walls of the lower chamber 3 in the conveying direction of the conveyor belt 4, and the multiple air supply holes 32 arranged on the same side wall are arranged at intervals.

[0047] Thus, by opening air intake holes 32 on both opposite side walls of the lower chamber 3, external airflow can flow symmetrically into the lower chamber 3 and mix with the vertical airflow, making the air pressure inside the middle chamber 2 more stable, reducing the adhesion of fragments and skewer, and improving the removal effect of skewer.

[0048] Understandably, the shape and number of the air supply holes 32 can be adjusted according to actual needs. The diameter of the air supply holes 32 should not be too large, otherwise the stems will leak from the air supply holes 32 to the outside, affecting the collection effect of the stems.

[0049] See Figure 1 In some embodiments, the cross-sectional area of ​​the material discharge port 31 is smaller than the cross-sectional area of ​​the ventilation port 11.

[0050] In this way, the smaller cross-sectional area of ​​the discharge port 31 can guide the sticks to be discharged to the outside in a concentrated manner, avoiding the scattering of the removed sticks. The fragments are discharged to the outside through the larger cross-sectional area of ​​the ventilation port 11 with the airflow in the upper chamber 1, which can reduce the blockage of fragments at the ventilation port 11 and improve the material separation effect.

[0051] It is understandable that the shape and area of ​​the material discharge port 31 and the ventilation port 11 can be adjusted according to actual needs, which will not be elaborated here.

[0052] See Figure 1 In some embodiments, the stem removal device further includes a support 6, and the upper chamber 1, middle chamber 2, and lower chamber 3 are all detachably mounted on the support 6. In this embodiment, the support 6 is a frame structure, and the support 6 includes support legs 61, which are connected to the lower chamber 3, so that the material discharge port 31 is spaced apart from the ground to facilitate the falling of stems; the upper chamber 1, middle chamber 2, and lower chamber 3 are all connected to the support 6 by bolts.

[0053] In this way, the support 6 can provide stable support for the upper chamber 1, the middle chamber 2 and the lower chamber 3, so that the stalks in the mixture are fully removed, reducing the residue of stalks and improving the purity of the removed fragments.

[0054] It is understandable that the upper compartment 1, the middle compartment 2, and the lower compartment 3 can also be fixedly mounted on the bracket 6. In this embodiment, they are detachably connected to the bracket 6 to facilitate the assembly of the stem removal device and improve the flexibility of the stem removal device.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stemmer removing device, characterized in that, include: Upper compartment (1), one end of the upper compartment (1) is provided with a ventilation opening (11), the upper compartment (1) is connected to a duct, the duct is connected to the interior of the upper compartment (1) through the ventilation opening (11), and the end of the duct away from the upper compartment (1) is connected to a fan so that the airflow inside the upper compartment (1) flows to the outside. The middle chamber (2) is connected at one end to the upper chamber (1) away from the ventilation opening (11). The middle chamber (2) is provided with a feed inlet and is connected to the outside through the feed inlet. The lower chamber (3) is connected at one end to the middle chamber (2) away from the upper chamber (1), and the other end is provided with a discharge port (31). The upper chamber (1), the middle chamber (2), and the lower chamber (3) are arranged in sequence along the vertical direction. The conveyor belt (4) and the adjusting plate (5) are provided. The output end of the conveyor belt (4) is set at the feed inlet so that the mixed material enters the interior of the middle chamber (2) through the feed inlet. The adjusting plate (5) is slidably set in the middle chamber (2) to adjust the communication area between the feed inlet and the outside.

2. The skewer ejector device according to claim 1, characterized in that The cross-sectional area of ​​the lower compartment (3) away from the middle compartment (2) is smaller than the cross-sectional area of ​​the lower compartment (3) facing the middle compartment (2).

3. The skewer ejector device of claim 1, wherein A limiting groove is provided on the middle compartment (2). The adjusting plate (5) is slidably disposed in the limiting groove along the extension direction of the limiting groove. The adjusting plate (5) is connected to a fixing member. The fixing member is connected to the middle compartment (2) and is used to limit the relative position of the adjusting plate (5) and the middle compartment (2).

4. The skewer ejector device according to claim 3, characterized in that The limiting groove extends in the vertical direction.

5. The skewer ejector of claim 1, wherein The central compartment (2) is provided with an observation section (21) made of transparent material.

6. The skewer ejector device of claim 5, wherein There are two observation sections (21), which are respectively located on opposite sides of the middle chamber (2), and the feed inlet is located between the two observation sections (21).

7. The skewer ejector of claim 1, wherein The lower compartment (3) is provided with an air supply hole (32) so that the lower compartment (3) can communicate with the outside world through the air supply hole (32).

8. The skewer ejector device of claim 7, wherein The air supply hole (32) is located on the side wall of the lower compartment (3) in the conveying direction of the conveyor belt (4).

9. The stem removal device according to any one of claims 1-8, characterized in that, The cross-sectional area of ​​the material discharge port (31) is smaller than the cross-sectional area of ​​the ventilation port (11).

10. A skewer removal device according to any one of claims 1 to 8, wherein, The stem removal device also includes a support (6), and the upper compartment (1), the middle compartment (2), and the lower compartment (3) can all be detachably mounted on the support (6).

Images