A metering tube and a cut filler delivery system

Abstract

The utility model discloses a kind of metering pipes, comprising: pipe body, upper end is equipped with feed inlet, lower end is equipped with discharge port, the bottom sidewall of pipe body is equipped with the mounting port extending along first direction;Mounting bracket is connected with pipe body, mounting bracket covers at least part mounting port;Discharge roller extends along first direction, first direction is perpendicular with the extension direction of pipe body;Two ends of discharge roller are equipped with a support respectively, support is connected with mounting bracket, discharge roller is arranged on support, the lower edge of mounting bracket along first direction extends and is target edge, there is certain gap between the circumference of discharge roller and target edge;First adjusting mechanism is arranged between support and mounting bracket, first adjusting mechanism is used for adjusting the relative position between support and mounting bracket along second direction, to change the size of gap.The utility model can flexibly change the gap between discharge roller and mounting bracket, to meet the flow requirement of different materials.The utility model further provides tobacco conveying system.

Description

Technical Field

[0001] This utility model relates to the field of cigarette equipment technology, and in particular to a metering tube and a tobacco conveying system. Background Technology

[0002] In tobacco processing production lines, flow control typically employs a constant flow feeding control system consisting of a control-type electronic belt scale, a feeder, and a metering tube. During tobacco processing, materials such as tobacco shreds or leaves are transported by the feeder's lifting belt from the hopper into the metering tube. The metering tube is vertically connected to the hopper, and optical gratings are installed on the acrylic glass on both sides. Height-adjustable discharge rollers are installed at the front plate outlet of the metering tube and in the material channel between the metering tube and the electronic belt scale, which control the incoming flow rate and ensure smooth material transport.

[0003] CN220844299U discloses a metering tube and a tobacco conveying system. The metering tube in this application includes a tube body and an adjusting assembly. The adjusting assembly includes a roller, an adjusting seat, and a locking element. The adjusting seat is located at the outlet of the tube body and is rotatably connected to the roller. The adjusting seat has an elongated hole extending along the height of the tube body. The locking element passes through the elongated hole and the tube body and can lock or unlock the relative position of the adjusting seat and the tube body. The roller is an electric roller. Although this patent achieves stable material flow, when materials with different flow requirements are changed on the production line, the fixed installation method between the roller and the adjusting seat in the above technical solution will have the following problems: 1. The gap between the roller and the adjusting seat is too large, causing material to overflow in the gap, resulting in roller jamming; 2. The gap is too small, causing friction between the roller and the adjusting seat, resulting in uneven material flow from the metering tube. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the fixed installation method between the roller and the adjusting seat in the existing technology cannot be applied to materials with various production requirements. This invention provides a metering tube and a tobacco conveying system that can flexibly change the gap between the discharge roller and the mounting frame according to different material flow rates. This prevents the discharge roller from jamming due to an excessively large gap, and prevents the discharge roller and the mounting frame from rubbing due to contact due to an excessively small gap. This achieves the function of stabilizing different material flow rates, ensuring the continuity of the production process, and improving production efficiency.

[0005] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a metering tube, comprising:

[0006] The tube body has an inlet at the upper end, an outlet at the lower end, and an installation port extending in the first direction on the bottom side wall of the tube body.

[0007] Mounting bracket, connected to the pipe body, covering at least part of the mounting opening;

[0008] The discharge roller extends along a first direction, which is perpendicular to the extension direction of the tube body. Each end of the discharge roller is provided with a support, which is connected to the mounting frame. The discharge roller is placed on the support. The lower edge of the mounting frame extending along the first direction is the target edge. There is a certain gap between the circumferential surface of the discharge roller and the target edge.

[0009] The first adjustment mechanism is located between the support and the mounting frame. The first adjustment mechanism is used to adjust the relative position between the support and the mounting frame along the second direction to change the size of the gap. The second direction is perpendicular to the first direction and the extension direction of the pipe body.

[0010] According to another specific embodiment of the present invention, the present invention discloses a first adjustment mechanism including a first adjustment bolt and a first strip-shaped hole extending along a second direction; the first strip-shaped hole is provided on the mounting bracket, and the first adjustment bolt passes through the first strip-shaped hole and is threadedly connected to the support; or, the first strip-shaped hole is provided on the support, and the first adjustment bolt passes through the first strip-shaped hole and is threadedly connected to the mounting bracket.

[0011] According to another specific embodiment of the present invention, an embodiment of the present invention discloses a mounting bracket comprising:

[0012] The adjusting frame is connected to the pipe body and the support;

[0013] An adjusting plate is located below the adjusting frame and connected to the adjusting frame, with the target edge being the lower edge of the adjusting plate;

[0014] The second adjustment mechanism is located between the adjustment frame and the tube body. The second adjustment mechanism is used to adjust the relative position between the adjustment frame and the tube body along the extension direction of the tube body.

[0015] According to another specific embodiment of the present invention, a second adjustment mechanism is disclosed, including a second adjustment bolt and a second strip-shaped hole extending along the extension direction of the tube body; the second strip-shaped hole is provided on the tube body, and the second adjustment bolt passes through the second strip-shaped hole and is threadedly connected to the adjustment frame; or, the second strip-shaped hole is provided on the adjustment frame, and the second adjustment bolt passes through the second strip-shaped hole and is threadedly connected to the tube body.

[0016] According to another specific embodiment of the present invention, a third adjustment mechanism is provided between the adjustment plate and the adjustment frame. The third adjustment mechanism is used to adjust the relative position between the adjustment plate and the adjustment frame along the extension direction of the tube.

[0017] According to another specific embodiment of the present invention, a third adjustment mechanism is disclosed, including a third adjustment bolt and a third strip hole; the third strip hole is disposed on the adjustment plate, and the third adjustment bolt passes through the third strip hole and is threadedly connected to the adjustment frame; or, the third strip hole is disposed on the adjustment frame, and the third adjustment bolt passes through the third strip hole and is threadedly connected to the adjustment plate.

[0018] According to another specific embodiment of the present invention, the present invention discloses that a first ear is provided on each side of the upper edge of the adjusting frame, and a second ear is provided on each side of the upper edge of the adjusting plate. The first ear and the second ear are both perpendicular to the extension direction of the tube body. The positions of the two second ears correspond one-to-one with the positions of the two first ears. A fourth adjusting bolt extending along the extension direction of the tube body is provided between the corresponding first ear and the second ear. The fourth adjusting bolt passes through the first ear and the second ear. The head of the fourth adjusting bolt is located above the first ear, and the lower end of the fourth adjusting bolt is provided with a nut that is threadedly connected to the fourth adjusting bolt.

[0019] According to another specific embodiment of the present invention, an adjustment plate is disclosed, including a plate body and a bending guide plate disposed on the lower edge of the plate body. The bending guide plate is bent toward the side near the discharge roller, and the edge of the bending guide plate on the side near the discharge roller is the target edge.

[0020] According to another specific embodiment of the present invention, the bending guide plate is tilted at an angle of 10°-20° relative to the second direction.

[0021] The present invention also discloses a tobacco conveying system, including an electronic belt scale conveyor belt and a metering tube mentioned in any of the above embodiments. The electronic belt scale conveyor belt is located below the discharge roller, and the discharge port of the tube is connected to the electronic belt scale conveyor belt.

[0022] According to another specific embodiment of the present invention, the circumferential surface rotational linear velocity of the discharge roller is kept consistent with the belt speed of the electronic belt scale conveyor belt.

[0023] Compared with the prior art, this utility model has the following beneficial effects:

[0024] The metering tube of this utility model includes a tube body, a discharge roller, a mounting frame, and a first adjustment mechanism. By setting the first adjustment mechanism, the relative position between the discharge roller and the mounting frame can be adjusted along a second direction, allowing operators to flexibly adjust the gap between the discharge roller and the target edge according to the production flow requirements of different materials and the specific production conditions on site. Using the metering tube provided in this application, the gap between the discharge roller and the mounting frame can be flexibly changed according to different material flow rates, preventing the discharge roller from jamming due to an excessively large gap, and preventing friction between the discharge roller and the mounting frame due to an excessively small gap. This achieves the function of stabilizing different material flow rates, ensuring the continuity of the production process, and improving production efficiency. Attached Figure Description

[0025] Figure 1 This diagram shows a structural schematic of a tobacco conveying system according to a specific embodiment of the present invention.

[0026] Figure 2 This diagram shows a structural schematic of the tube body and the electronic belt scale conveyor belt according to a specific embodiment of the present invention.

[0027] Figure 3 This diagram illustrates the structure of the mounting frame and the discharge roller in cooperation according to a specific embodiment of the present invention.

[0028] Figure 4 A cross-sectional view of a metering tube according to a specific embodiment of the present invention is shown;

[0029] Figure 5 Show Figure 4 A magnified view of part A in the middle. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0031] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, 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 the utility model.

[0033] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] In existing technology, tobacco conveying systems include a metering tube and an electronic belt conveyor. Generally, before entering the main equipment for further processing, the material is buffered by a cabinet-type feeder. Then, the material is conveyed to the metering tube by the bottom belt and the lifting belt. From there, it falls onto the electronic belt conveyor, and is then transported into the main equipment by a discharge roller located at the bottom of the tube, working in conjunction with the electronic belt conveyor. In existing technology, the discharge roller is mounted on the tube via a mounting bracket, with a gap between the bracket and the roller. However, if the gap is too large, material will overflow; if the gap is too small, friction will occur between the roller and the adjusting seat.

[0037] To solve the above problems, such as Figure 1 , Figure 2 and Figure 3As shown, an embodiment of this utility model provides a metering tube, including: a tube body 1, a mounting frame 2, a discharge roller 3, and a first adjusting mechanism 4. The upper end of the tube body 1 is provided with a feed inlet 11, the lower end of the tube body 1 is provided with a discharge outlet 12, and the bottom sidewall of the tube body 1 is provided with a discharge outlet along a first direction (e.g., ...). Figure 1 and Figure 3 An installation port 13 extends in the X direction (as shown). A mounting bracket 2 is connected to the tube body 1, and the mounting bracket 2 covers at least part of the installation port 13. A discharge roller 3 extends in the X direction, which is perpendicular to the extension direction of the tube body 1. A support 31 is provided at each end of the discharge roller 3, and the support 31 is connected to the mounting bracket 2. The discharge roller 3 is mounted on the support 31 and can rotate around its own axis. The lower edge of the mounting bracket 2 extending in the X direction is the target edge 21, and there is a certain gap between the circumferential surface of the discharge roller 3 and the target edge 21. Exemplarily, the discharge roller 3 is an electric roller, which includes a motor and a roller body, with the motor located inside the roller body. A first adjustment mechanism 4 is located between the support 31 and the mounting bracket 2, and the first adjustment mechanism 4 is used to adjust the discharge roller 3 in a second direction (as shown). Figure 1 , Figure 2 and Figure 3 The relative position between the support 31 and the mounting bracket 2 (shown in the Y direction) is adjusted to change the size of the gap; the Y direction is perpendicular to the X direction and the extension direction of the pipe body.

[0038] The metering tube of this invention, through the first adjustment mechanism 4, can adjust the relative position between the discharge roller 3 and the mounting frame 2 along the Y direction. This allows operators to flexibly adjust the gap between the discharge roller 3 and the target edge 21 according to the production flow requirements of different materials and the specific production conditions on site. Using the metering tube provided in this application, the gap between the discharge roller 3 and the mounting frame 2 can be flexibly changed according to different material flow rates. This prevents the discharge roller 3 from jamming due to an excessively large gap, and prevents friction between the discharge roller 3 and the mounting frame 2 due to an excessively small gap. This achieves the function of stabilizing different material flow rates, ensuring the continuity of the production process, and improving production efficiency.

[0039] In some implementations, reference Figure 3 The first adjustment mechanism 4 includes a first adjustment bolt 41 and a first strip hole 42 extending along the Y direction; the first strip hole 42 is provided on the mounting bracket 2, and the first adjustment bolt 41 passes through the first strip hole 42 and is threadedly connected to the support 31; or, the first strip hole 42 is provided on the support 31, and the first adjustment bolt 41 passes through the first strip hole 42 and is threadedly connected to the mounting bracket 2.

[0040] Specifically, the first adjusting mechanism 4 includes a first adjusting bolt 41 and a first strip-shaped hole 42 extending along the Y direction. The first strip-shaped hole 42 can be positioned in, but is not limited to, two ways: one is to place the first strip-shaped hole 42 on the mounting frame 2, in which case the first adjusting bolt 41 passes through the first strip-shaped hole 42 and is threadedly connected to the support 31; the other is to place the first strip-shaped hole 42 on the support 31, and the first adjusting bolt 41 passes through the first strip-shaped hole 42 and is threadedly connected to the mounting frame 2. When it is necessary to adjust the gap between the discharge roller 3 and the mounting frame 2 along the Y direction, the operator only needs to loosen the first adjusting bolt 41, and then move the support 31 along the Y direction within the range of the first strip-shaped hole 42. According to actual needs, after adjusting the support 31 to a suitable position, the first adjusting bolt 41 is tightened to firmly fix the support 31 to the mounting frame 2, thereby achieving precise adjustment of the gap size to meet the conveying requirements of different materials.

[0041] In some implementations, reference Figure 3 The mounting frame 2 includes an adjusting frame 22, an adjusting plate 23, and a second adjusting mechanism 24. The adjusting frame 22 is connected to the pipe body 1 and the support 31. The adjusting plate 23 is located below the adjusting frame 22 and is connected to the adjusting frame 22, with the target edge 21 being the lower edge of the adjusting plate 23.

[0042] The second adjustment mechanism 24 is located between the adjustment frame 22 and the pipe body 1. The second adjustment mechanism 24 is used to adjust the relative position between the adjustment frame 22 and the pipe body 1 along the extension direction of the pipe body 1 to adapt to the flow requirements of different materials and different installation environments.

[0043] Specifically, such as Figure 1 and Figure 3As shown, the second adjusting mechanism 24 includes a second adjusting bolt 241 and a second strip-shaped hole 242 extending along the extension direction of the tube body 1. The second strip-shaped hole 242 can be positioned in two ways, including but not limited to: one is that the second strip-shaped hole 242 is located on the tube body 1, in which case the second adjusting bolt 241 passes through the second strip-shaped hole 242 and is threadedly connected to the adjusting frame 22; the other is that the second strip-shaped hole 242 is located on the adjusting frame 22, and the second adjusting bolt 241 passes through the second strip-shaped hole 242 and is threadedly connected to the tube body 1. When it is necessary to adjust the relative position of the discharge roller 3 along the extension direction of the tube body 1, the operator only needs to loosen the second adjusting bolt 241, and then move the adjusting frame 22 within the range of the second strip hole 242 along the extension direction of the tube body 1. According to the actual needs, after adjusting the adjusting frame 22 to a suitable position, tighten the second adjusting bolt 241 to fix the adjusting frame 22 on the tube body 1, thereby realizing the position adjustment of the adjusting frame 22, thus realizing the position adjustment of the discharge roller 3 along the extension direction of the tube body 1, that is, changing the distance between the discharge roller 3 and the upper surface of the electronic belt scale conveyor belt 6, thereby realizing the adjustment of the material discharge height between the discharge roller 3 and the electronic belt scale conveyor belt 6 to meet the production requirements of different material flow rates.

[0044] Furthermore, to further optimize the gap between the discharge roller 3 and the mounting bracket 2 along the extension direction of the tube body 1, and to improve the accuracy and stability of material discharge, in some embodiments, such as Figure 1 , Figure 2 and Figure 3 As shown, a third adjustment mechanism 5 is provided between the adjustment plate 23 and the adjustment frame 22. The third adjustment mechanism 5 is used to adjust the relative position between the adjustment plate 23 and the adjustment frame 22 along the extension direction of the tube body 1.

[0045] In some implementations, such as Figure 3 As shown, the third adjustment mechanism 5 includes a third adjusting bolt 51 and a third slotted hole 52. The third slotted hole 52 can be positioned in two ways, including but not limited to: one where the third slotted hole 52 is located on the adjustment plate 23, in which case the third adjusting bolt 51 passes through the third slotted hole 52 and is threadedly connected to the adjustment frame 22; the other where the third slotted hole 52 is located on the adjustment frame 22, and the third adjusting bolt 51 passes through the third slotted hole 52 and is threadedly connected to the adjustment plate 23. When it is necessary to adjust the gap between the discharge roller 3 and the mounting frame 2 along the extension direction of the pipe body 1, the operator only needs to loosen the third adjusting bolt 51, and then move the adjustment plate 23 within the range of the third slotted hole 52 along the extension direction of the pipe body 1, thereby achieving fine-tuning of the position of the adjustment plate 23, and thus adjusting the gap between the target edge 21 and the discharge roller 3 along the extension direction of the pipe body 1 to meet the conveying requirements of different materials.

[0046] In some implementations, reference Figure 1 , Figure 3 and Figure 4 Each side of the upper edge of the adjusting frame 22 is provided with a first ear 221, and each side of the upper edge of the adjusting plate 23 is provided with a second ear 231. The first ear 221 and the second ear 231 are perpendicular to the extension direction of the tube body 1. The positions of the two second ears 231 correspond one-to-one with the positions of the two first ears 221. A fourth adjusting bolt 54 extending along the extension direction of the tube body 1 is provided between the corresponding first ears 221 and second ears 231. The fourth adjusting bolt 54 passes through the first ears 221 and the second ears 231. The head of the fourth adjusting bolt 54 is located above the first ear 221, and the lower end of the fourth adjusting bolt 54 is provided with a nut that is threadedly connected to the fourth adjusting bolt 54.

[0047] Specifically, when it is necessary to adjust the gap between the discharge roller 3 and the mounting bracket 2 along the extension direction of the tube body 1, the operator first needs to loosen the third adjusting bolt 51, and then rotate the nut connected to the fourth adjusting bolt 54. Due to the threaded connection of the nut, the nut will move up and down along the fourth adjusting bolt 54, thereby causing relative movement between the first ear 221 and the second ear 231. This will cause the adjusting plate 23 to move within the range of the third strip hole 52 along the extension direction of the tube body 1, thereby realizing the movement of the adjusting plate 23 along the extension direction of the tube body 1 and adjusting the gap between the target edge 21 and the discharge roller 3 along the extension direction of the tube body 1 to meet the conveying requirements of different materials.

[0048] Optionally, refer to Figure 4 and Figure 5 The adjusting plate 23 includes a plate body 232 and a bending guide plate 233 disposed on the lower edge of the plate body 232. The bending guide plate 233 is bent toward the side near the discharge roller 3, and the edge of the bending guide plate 233 on the side near the discharge roller 3 is the target edge 21. For example, as... Figure 5 As shown, the tilt angle α of the bending guide plate 233 relative to the Y direction is 10°-20°. (Reference) Figure 1 , Figure 2 , Figure 4 and Figure 5 This application utilizes a bending guide plate 233 to guide the material. When the material falls onto the electronic belt scale conveyor belt 6, it accumulates to a certain height at the discharge port 12. Therefore, the upper surface of the material contacts the lower surface of the bending guide plate 233 during conveying. As the material follows the electronic belt scale conveyor belt 6 along its conveying direction, the bending guide plate 233 guides the material, reducing resistance and thus reducing accumulation and blockage at the discharge port 12, thereby improving the conveying efficiency.

[0049] Based on the same concept, such as Figure 1 and Figure 2 As shown, an embodiment of this utility model also provides a tobacco conveying system, including an electronic belt scale conveyor belt 6 and a metering tube provided in any of the above embodiments. The electronic belt scale conveyor belt 6 is located below the discharge roller 3 and is used to receive and convey the material discharged from the metering tube. The discharge port 12 of the tube body 1 is connected to the electronic belt scale conveyor belt 6 to ensure that the material can smoothly enter the electronic belt scale conveyor belt 6.

[0050] Specifically, during the tobacco conveying process, the material enters from the feed inlet 11 of the tube body 1, passes through the inner cavity of the tube body 1, and is discharged from the discharge outlet 12, falling onto the electronic belt scale conveyor belt 6. To ensure that the material can be conveyed evenly and stably, in some embodiments, the rotational linear speed of the discharge roller 3 is consistent with the belt speed of the electronic belt scale conveyor belt 6, so that the upper and lower layers of the material are subjected to the same force direction and speed. This ensures that when the material enters the precision metering equipment through a narrow space, the upper and lower layers are subjected to equal and consistent working loads within a certain cross-section, effectively eliminating the unevenness of the material surface. The material passing through the weighing area of ​​the electronic belt scale is uniform and has a flat surface, improving the control accuracy of the tobacco leaf or tobacco shred material flow rate.

[0051] Thus, by setting up the first adjusting mechanism 4, the third adjusting mechanism 5, the adjusting frame 22, the adjusting plate 23, and the fourth adjusting bolt 54, the operator can flexibly adjust the gap between the discharge roller 3 and the target edge 21 according to factors such as the type of material and conveying requirements. Furthermore, by setting up the second adjusting mechanism 24, the distance between the discharge roller 3 and the electronic belt scale conveyor belt 6 can be adjusted to meet different production needs.

[0052] It should be noted that in the examples and description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0053] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A metering tube, characterized in that, include: The tube body has an inlet at its upper end, an outlet at its lower end, and an installation port extending in a first direction on its bottom side wall. A mounting bracket is connected to the pipe body, and the mounting bracket covers at least a portion of the mounting opening; The discharge roller extends along the first direction, which is perpendicular to the extension direction of the tube body; each end of the discharge roller is provided with a support, the support is connected to the mounting frame, the discharge roller is disposed on the support, the lower edge of the mounting frame extending along the first direction is the target edge, and there is a certain gap between the circumferential surface of the discharge roller and the target edge. A first adjustment mechanism is disposed between the support and the mounting bracket. The first adjustment mechanism is used to adjust the relative position between the support and the mounting bracket along a second direction to change the size of the gap. The second direction is perpendicular to the first direction and the extension direction of the tube body, respectively.

2. The metering tube as described in claim 1, characterized in that, The first adjustment mechanism includes a first adjustment bolt and a first strip-shaped hole extending along the second direction; the first strip-shaped hole is provided on the mounting bracket, and the first adjustment bolt passes through the first strip-shaped hole and is threadedly connected to the support; or, the first strip-shaped hole is provided on the support, and the first adjustment bolt passes through the first strip-shaped hole and is threadedly connected to the mounting bracket.

3. The metering tube as described in claim 1, characterized in that, The mounting bracket includes: An adjusting frame is connected to the tube body and the support; An adjustment plate is located below the adjustment frame and connected to the adjustment frame, and the target edge is the lower edge of the adjustment plate; A second adjustment mechanism is disposed between the adjustment frame and the tube body. The second adjustment mechanism is used to adjust the relative position between the adjustment frame and the tube body along the extension direction of the tube body.

4. The metering tube as described in claim 3, characterized in that, The second adjustment mechanism includes a second adjustment bolt and a second strip-shaped hole extending along the extension direction of the tube body; the second strip-shaped hole is provided on the tube body, and the second adjustment bolt passes through the second strip-shaped hole and is threadedly connected to the adjustment frame; or, the second strip-shaped hole is provided on the adjustment frame, and the second adjustment bolt passes through the second strip-shaped hole and is threadedly connected to the tube body.

5. The metering tube as described in claim 3, characterized in that, A third adjustment mechanism is provided between the adjustment plate and the adjustment frame. The third adjustment mechanism is used to adjust the relative position between the adjustment plate and the adjustment frame along the extension direction of the tube.

6. The metering tube as described in claim 5, characterized in that, The third adjustment mechanism includes a third adjustment bolt and a third strip hole; the third strip hole is located on the adjustment plate, and the third adjustment bolt passes through the third strip hole and is threadedly connected to the adjustment frame; or, the third strip hole is located on the adjustment frame, and the third adjustment bolt passes through the third strip hole and is threadedly connected to the adjustment plate.

7. The metering tube as described in claim 6, characterized in that, Each side of the upper edge of the adjusting frame is provided with a first ear, and each side of the upper edge of the adjusting plate is provided with a second ear. Both the first and second ears are perpendicular to the extension direction of the tube body. The positions of the two second ears correspond one-to-one with the positions of the two first ears. A fourth adjusting bolt extending along the extension direction of the tube body is provided between the corresponding first and second ears. The fourth adjusting bolt passes through the first and second ears. The head of the fourth adjusting bolt is located above the first ear, and the lower end of the fourth adjusting bolt is provided with a nut that is threadedly connected to the fourth adjusting bolt.

8. The metering tube as described in claim 3, characterized in that, The adjusting plate includes a plate body and a bending guide plate disposed on the lower edge of the plate body. The bending guide plate is bent toward the side closer to the discharge roller, and the edge of the bending guide plate on the side closer to the discharge roller is the target edge.

9. The metering tube as described in claim 8, characterized in that, The bending guide plate is tilted at an angle of 10°-20° relative to the second direction.

10. A tobacco shred conveying system, characterized in that, It includes an electronic belt scale conveyor belt and a metering tube as described in any one of claims 1-9, wherein the electronic belt scale conveyor belt is located below the discharge roller, and the discharge port of the tube body is connected to the electronic belt scale conveyor belt.

11. The tobacco conveying system as described in claim 10, characterized in that, The linear speed of the circumferential surface of the discharge roller is consistent with the belt speed of the electronic belt scale conveyor belt.

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