CN113387182A

CN113387182A - Dispensing assembly and dispensing assembly

Info

Publication number: CN113387182A
Application number: CN202110890959.7A
Authority: CN
Inventors: 王新亭; 王韶斌
Original assignee: Shandong Swan Cotton Industrial Machinery Stock Co ltd
Current assignee: Shandong Swan Cotton Industrial Machinery Stock Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2021-09-14

Abstract

The invention discloses a distribution component and a distribution assembly, wherein the distribution component is a component of the distribution assembly, the distribution component comprises a primary regulation part, the cross section of the primary regulation part is a first rectangle with the length-width ratio not less than 2, and the long side of the first rectangle is gradually shortened from the inlet end to the outlet end of the primary regulation part; a first adjusting baffle is arranged in the primary adjusting part, and the flow direction of the seed cotton is adjusted by changing the longitudinal included angle between the first adjusting baffle and the primary adjusting part; the secondary regulating part is connected with the outlet end of the primary regulating part, the cross section of the main body of the secondary regulating part is a second rectangle with the length-width ratio not less than 2, and the long side of the second rectangle is gradually lengthened from the inlet end to the outlet end of the secondary regulating part; the outlet end of the secondary regulating part is sealed by a sealing plate, and the sealing plate is provided with at least two flower outlet ports; one end of the adapter tube is connected with the flower outlet interface, and the other end of the adapter tube is connected with a lower-level component of the distribution assembly. The invention can adapt to the current situation of larger machine range or further expansion, thereby having better popularization and application prospect.

Description

Dispensing assembly and dispensing assembly

Technical Field

The present invention relates to a dispensing assembly for dispensing seed cotton in a web direction and to a dispensing assembly incorporating the dispensing assembly.

Background

Regarding the distribution of seed cotton, see chinese patent document CN108103588A, which is an improvement of seed cotton distributor from the mechanical company of swan cotton industry of shandong, the background section of which describes the structure and principle of seed cotton distribution in relative detail. With the progress of technology, cotton processing machinery equipment advances towards large-scale, automation and intensification directions, the single-machine equipment has larger and larger processing capacity, the machine width (for example, the span of a seed cotton processing part in the width direction of a seed cotton cleaner) is wider and wider, the range reaches about 4 meters from about 2 meters originally, and the machine width can not be further increased after the machine width is eliminated.

As is known, seed cotton transportation is mainly adapted to pipeline transportation by means of wind power, and pipelines are mostly circular pipelines (namely, conventionally known circular pipes). The diameter of the pipeline cannot be increased infinitely due to the restriction of a wind system. The problem that how to uniformly disperse materials in a width range of a seed cotton cleaner, for example, the seed cotton cleaner has the problem of uniform dispersion as much as possible in the whole width range is urgently solved by entering a flower inlet long opening of the seed cotton cleaner with the width of 4 meters from a circular pipe with the diameter of 400 mm.

As an initial seed cotton dispensing feature, the triangular box has served as the primary seed cotton dispensing feature in the cotton processing field prior to the advent of other types of seed cotton dispensing features, such as seed cotton cleaners. Because the traditional cotton processing plant has small scale, small single equipment handling capacity and narrow equipment breadth, the length is about 2 meters, and when the cotton enters the long opening from the circular pipeline, seed cotton can be uniformly distributed by means of the diffusion of the triangular box in front of the long opening. However, with the development of technology, the width of the machine width of the cotton processing equipment can reach 4 meters at present, even the width of the machine width can be improved in the near future, and the seed cotton is uniformly distributed in the width range of the cotton processing equipment by purely relying on triangular box diffusion.

In view of this, chinese patent document CN108103588A proposes a seed cotton distributor partially modified based on a triangular box, which is improved by installing two adjusting baffles on the triangular box, and adjusting the angles of the adjusting baffles according to the rotation angles, which is equivalent to adjusting the angles of the triangular box according to the working conditions. However, this adjustment cannot be adapted to the further expansion of the machine width, and the adjustment of the triangular box angle is limited to relatively controlling the flow direction of the seed cotton, but cannot extend the coverage of the seed cotton in the length direction of the long opening, and thus is not suitable for the further expansion of the machine width.

Disclosure of Invention

The invention aims to provide a distribution assembly which can adapt to the current situation of larger machine width or further expansion and has better popularization and application prospects, and the invention also provides a distribution assembly provided with the distribution assembly.

In an embodiment of the present invention, there is provided a dispensing assembly comprising:

a primary regulating part, the cross section of which is a first rectangle with the length-width ratio not less than 2, and the long side of the first rectangle is gradually shortened from the inlet end to the outlet end of the primary regulating part; a first adjusting baffle is arranged in the primary adjusting part, and the flow direction of the seed cotton is adjusted by changing the longitudinal included angle between the first adjusting baffle and the primary adjusting part;

the secondary regulating part is connected with the outlet end of the primary regulating part, the cross section of the main body of the secondary regulating part is a second rectangle with the length-width ratio not less than 2, and the long side of the second rectangle is gradually lengthened from the inlet end to the outlet end of the secondary regulating part; the outlet end of the secondary regulating part is sealed by a sealing plate, and the sealing plate is provided with at least two flower outlet ports;

one end of the adapter tube is connected with the flower outlet interface, and the other end of the adapter tube is connected with a lower-level component of the distribution assembly.

Optionally, the number of the flower outlet ports is 2-4;

the shrouding is the folded plate, and the crease divides into the shrouding unit with the shrouding, and the quantity of shrouding unit corresponds with the interface one-to-one that appears flowers.

Optionally, the sealing plate unit is a flat plate, and the sealing plate forms an arch structure with a high middle part and low two ends based on the crease;

wherein the direction in which the arch is arched is the longitudinal end of the secondary adjustment portion.

Optionally, the adapter tube comprises a knurled elbow, and a centripetal side of the knurled elbow is a laterally inward side of the secondary adjustment portion.

Optionally, a secondary adjusting part shell plate corresponding to the second rectangular short edge is recorded as a side plate, and a first air supply opening with an adjustable opening degree is formed in the side plate.

Optionally, the adjustable structure of the first air supply opening is:

slots are formed in two opposite sides of the first air supply opening;

and providing an inserting plate inserted in the slot, and adjusting the opening degree of the first air supplement opening based on the measurement that the inserting plate covers the first air supplement opening.

Optionally, the first adjusting baffle is provided with one at each of the two lateral ends of the primary adjusting portion.

Optionally, a cotton inlet bent pipe is connected to the front stage of the primary adjusting part in a matching manner, so that the incoming seed cotton is guided vertically or forms an included angle of not less than 60 degrees with the vertical direction, and the incoming seed cotton is fed to the primary adjusting part.

Optionally, the cross section of the flower inlet bent pipe is a rectangle with the length-width ratio not less than 2.

In an embodiment of the present invention, there is also provided a dispensing assembly provided with a dispensing component in an embodiment of the present invention; the dispensing assembly further comprises:

the distribution pipes correspond to the adapter pipes one to one, the cross sections of the distribution pipes are third rectangles, and the length-width ratio of the third rectangles is gradually increased in the discharging direction;

the material inlet end of the material outlet pipe is sequentially arranged and matched with the material outlet end of the distribution pipe; accordingly, the cross section of the outlet pipe is a fourth rectangle having an aspect ratio of not less than 8.

Optionally, a second adjusting baffle is arranged in the distribution pipe, and the flow direction of the seed cotton is adjusted by changing an included angle between the second adjusting baffle and the distribution pipe in the longitudinal direction;

and a second air supply opening with adjustable opening degree is formed in the distribution pipe shell plate corresponding to the short side of the third rectangle.

Optionally, the adapter tube at least comprises a flower outlet bent tube and a connecting bent tube positioned on the side of the distribution tube so as to guide the seed cotton to be attached to the panel corresponding to the long side of the third rectangle for discharging.

In the embodiment of the invention, the distribution of the seed cotton flow is transversely extended through the carding of the primary adjusting part, the transverse distribution of the seed cotton flow is in a controllable range through the carding of the secondary adjusting part, and then the controllable seed cotton flow is divided into a plurality of seed cotton branches, so that better technical conditions are provided for the further transverse extension of the seed cotton branches, and the cotton processing device is suitable for cotton processing equipment with a relatively large machine breadth. And the further distribution assembly collects the seed cotton branches which are respectively spread in a horizontal extension mode and finally conveys the collected seed cotton branches to a given seed cotton processing machine in a mode of connecting the outlet pipe with the distribution pipe, so that the distribution assembly is integrally suitable for a larger machine width.

Drawings

FIG. 1 is a schematic view of an embodiment of a dispensing assembly.

FIG. 2 is a schematic diagram of an embodiment of a dispensing assembly.

FIG. 3 is a schematic view of an embodiment of a flower-out elbow.

FIG. 4 is a schematic structural view of a wind-force adjusting portion according to an embodiment.

Fig. 5 is a schematic structural diagram of a distribution adjusting part in an embodiment.

FIG. 6 is a diagram illustrating an exemplary operating state of the dispensing assembly.

In the figure: 1. the flower-feeding device comprises a flower-feeding bent pipe, 2 parts of distribution adjusting parts, 3 parts of wind force adjusting parts, 4 parts of flower-discharging bent pipes, 5 parts of straight pipes, 6 parts of connecting bent pipes, 7 parts of distribution pipes and 8 parts of connecting pipes.

21. Flange, 22, pin shaft, 23, arm, 24, access hole, 25, adjusting baffle, 26, flange, 27, panel, 28, air supply opening, 29 and slot.

31. Flange, 32, panel, 33, window, 34, receiving hopper, 35, flange, 36, top plate, 37 air supply opening, 38, slot, 39, inserting plate.

41. Flange, 42 bent pipe body, 43 flange.

C. Seed cotton.

Detailed Description

The seed cotton C is transported by wind power through a pipeline commonly used, and the transportation pipeline adopts a round pipe commonly used, so that the seed cotton C has a definite axial direction. For example, for the use of a triangular box, the basic orientation of the triangular box can be determined based on the round tubes to which the triangular box is coupled, for example, in the axial direction.

It is to be noted that, for example, in the pipe for transporting the seed cotton C, the axial direction thereof is also the transporting direction of the seed cotton C.

It should be noted that, for example, in the case of a triangular box, the cross section is generally rectangular, the shell plates corresponding to the short sides are generally referred to as side plates, the shell plates corresponding to the long sides are generally referred to as

face plates

27 and 32, the corresponding direction between the side plates is generally transverse, the direction between the

face plates

27 and 32 is the thickness direction, and the direction along the seed cotton flow can be radial as described above or longitudinal. Therefore, in the embodiments of the present invention, unless otherwise specified, the lateral direction, the longitudinal direction, and the thickness direction are all based on this.

It should be noted that the lateral direction is also generally referred to as a left-right direction when the lateral direction is taken as a reference.

On the other hand, there is a distinction between the front stage and the rear stage on the basis of the longitudinal direction, i.e., along the seed cotton flow direction. The seed cotton dispenser disclosed in chinese patent document CN108103588A is the basis of the improvement of the present invention, and in the embodiment of the present invention, the partial structure of the dispensing pipe 7 and the dispensing adjustment part 2 can be regarded as the direct application or transformation of the seed cotton dispenser in chinese patent document CN108103588A, especially the dispensing pipe 7.

The structure shown in fig. 2 and 6 is an exemplary distribution assembly, and the whole structure looks like a small end butt joint structure of two triangular boxes, the distribution assembly, and the connection between each section of the distribution assembly mainly adopt flange connection, and the flange connection belongs to a conventional connection mode of a pipe joint structure, and is not described again. However, it is adapted as a pipe connection structure, at least to mean that, for example, the outlet of the distribution adjustment part 2 and the inlet of the wind adjustment part 3 should be identical in shape and size, and the shape and size of the other sections should be corresponding.

Fig. 1 shows a perspective view of the entire dispensing assembly, which in the figure comprises a plurality of segments, in which a flower inlet bend 1 is provided for guiding the flower inlet.

As a conventional configuration in the cotton field, the seed cotton C is usually dried before being fed into the cotton processing equipment to control the moisture content of the seed cotton C, thereby facilitating the development of subsequent processes such as opening and removing impurities of the seed cotton.

After the seed cotton C is sent out from the dryer, for example, the seed cotton C is usually sucked by wind force, for example, a dust cage is arranged at the front stage of the seed cotton cleaning machine, for example, a fan is connected with the dust cage, and negative pressure in the distributor is generated by means of air induction, so that the seed cotton enters the seed cotton distribution assembly from the cotton inlet elbow 1.

The direction of the flow of seed cotton, which is generally discharged from, for example, a dryer, of seed cotton C is a horizontal direction, whereas the dispensing assembly is configured in an embodiment of the present invention in a vertical direction as a whole, assuming a state as shown in fig. 1, for example, a state in which the straight pipe 5 shown in fig. 1 is substantially vertical, and the seed cotton dispensing assembly has a function of lifting the flow of seed cotton upward as a whole.

For the cotton inlet elbow pipe 1, the seed cotton flow which enters horizontally is guided to be in a roughly vertical state, and the direction in which the seed cotton flow is finally guided out is generally not less than 60 degrees from the vertical direction.

With respect to seed cotton cleaners, for example, their location in a cotton processing line may be configured to be very high, and thus configuring the structure shown in fig. 1 in a cotton processing line does not add additional height to the station. In particular, most cotton processing stations are processing from seed cotton C to lint, the overall height of the production line is relatively high, and the seed cotton cleaner is often the front-end equipment of the cotton processing equipment, and the position of the seed cotton cleaner in the station is often relatively high.

The inlet of the flower inlet elbow 1 in fig. 1 is a rectangular opening, the outlet is also a rectangular opening, and the corresponding flower inlet elbow 1 is a rectangular pipe as a whole and is suitable for being matched with a triangular box for example.

The cotton inlet elbow 1 in fig. 1 is a substantially 90 degree elbow for guiding a horizontal flow of seed cotton to a substantially vertical state for feeding into, for example, the distribution adjusting part 2.

It will be appreciated that for some seed cotton cleaners it may be relatively low and thus, for example, for a dispensing assembly, the overall arrangement may be horizontal. The straight pipe section for the switchover can be omitted or replaced according to the design inlet elbow 1.

In order to represent the state of the seed cotton flow, for example, the distribution regulating part 2 is shown as a primary regulating part, while the wind regulating part 3 shown in fig. 1 is referred to as a secondary regulating part, and the seed cotton flow is conditioned by the primary and secondary, combed into substantially two branches, and sent into two flower outlet bent pipes 4, and connected to the distribution pipe 7 by means of an adapter pipe including the flower outlet bent pipes 4. The distributing pipe 7 is a typical application of the seed cotton distributor disclosed in chinese patent document CN108103588A, and is a direct application of the seed cotton distributor, and for the specific structure of the distributing pipe 7, reference is made to the seed cotton distributor applicable in chinese patent document CN108103588A, and details thereof are not repeated here.

The primary regulating part, such as the distributing regulating part 2 illustrated in fig. 5, which is located at the first stage of the distributing assembly in fig. 1, is adapted to the rectangular pipe structure, such as the flower inlet elbow 1, and the inlet of the distributing regulating part 2 is a rectangular opening and the outlet is a rectangular opening in fig. 5, and is also a triangular box structure as a whole. The small end of the traditional triangular box is generally connected with a round pipe, or the small end of the traditional triangular box is generally a round opening, and is similar to the lower structure of the distribution pipe 7 in the figure 1; the dispensing adjustment part 2 illustrated in fig. 5 is an isosceles trapezoid box as a whole, and the cross section thereof is a first rectangle with an aspect ratio of 2 or more, and the mouth of the flange 26 at the end is a rectangular mouth with relatively long sides and short sides of about one half of the long sides. The aspect ratio is greater because the flange 21 is a relatively longer rectangular mouth.

In the structure illustrated in fig. 5, with reference to the first rectangle, the long side of the first rectangle is gradually shortened in the longitudinal direction of the primary conditioning portion or in the seed cotton flow direction. The seed cotton flow speed is increased through the gradually narrowed channel, and the seed cotton is guided into relatively regular beam current, so that the relatively dispersed seed cotton flow is in a relatively controllable state. By the structure, the wind speed for conveying the seed cotton is higher, so that the seed cotton can pass through the device quickly, and the pipeline cannot be blocked due to low wind speed.

In some embodiments, the two sides of the primary adjusting part are provided with air supply ports 28, and the running track of the seed cotton is changed by introducing external wind power, so that the aim of uniform distribution is fulfilled.

Since the seed cotton flow conveyed from, for example, the cotton inlet elbow 1 or other components may be deflected to one side, for example, to one side of the primary adjusting part, a first adjusting baffle is arranged in the primary adjusting part, and the seed cotton flow direction is adjusted by changing the included angle between the first adjusting baffle and the longitudinal direction of the primary adjusting part.

The first adjusting damper is an adjusting damper 25 as illustrated in fig. 5, and chinese patent document CN108103588A describes the adjusting damper 25 in more detail, and is shown in fig. 5 relatively clearly. In fig. 5, the lower end of the adjusting flap 25 is mounted on the panel 27 by a pin 22. The lower end of the adjusting baffle 25 in fig. 5 is a feeding end of the primary adjusting part, the rotating shaft 22 is located outside the primary adjusting part and is connected with the adjusting baffle 25 through the arm part 23 and the insertion hole, so that the adjusting baffle 25 has a swinging freedom, and the insertion hole 24 is an arc-shaped hole, which can limit a rotating angle of the adjusting baffle 25.

In the preferred embodiment, the range of rotation of the adjustment flap 25 is controlled to within 45 degrees.

The driving or adjusting of the adjusting damper 25 is described in detail in chinese patent document CN108103588A, and is not described in detail here.

In fig. 1, the second stage of adjustment is performed by the wind power adjusting unit 3, and the second stage, i.e., the secondary stage, refers to the wind power adjusting unit 3 as the secondary adjusting unit.

As described above, the secondary regulating part is connected to the outlet end of the primary regulating part by end-to-end flange connection, and the cross section of the main body of the secondary regulating part is a second rectangle having an aspect ratio of not less than 2, and the long side of the second rectangle is gradually longer from the inlet end to the outlet end of the secondary regulating part.

The secondary regulating part is used for shunting the seed cotton flow in addition to the aforementioned functions, so that technical conditions are provided for further widening the seed cotton flow in the shunting condition of the later stage. Accordingly, referring to fig. 1 and 4, the end of the wind power conditioning part 3, i.e. the upper end as shown in the figure, is provided with a top plate 36, and the top plate 36 is used for sealing the outlet end of the wind power conditioning part 3 to construct the seed cotton flow passage. In fig. 4 it can be seen that the top plate 36 is provided with two flower outlets for receiving, for example, cones 34 for connecting the flower outlet elbows 4, which are in the form of circular tubes.

A material cone 34 shown in fig. 4, which is used for collecting the wide incoming material to a state suitable for the circular tube conveying. Correspondingly, adapter tubes are adapted for the connection between the distribution assembly and the lower component. The adapter tube has three segments in fig. 1, and in some implementations may have only one segment, with multiple segments provided to adjust the flow pattern of the seed cotton stream.

In fig. 4, there are two cones 34 adapted with two cotton outlets, if the machine frame is further enlarged, the cotton outlets can be added, and when the cotton outlets are relatively large, the burden of the adapted distribution pipe 7 is relatively small, for example, for a machine frame of 2 meters, the requirement of the conventional triangular box can be basically met, in the case of adopting the seed cotton distributor disclosed in, for example, chinese patent document CN108103588A, a better seed cotton distribution effect can be obtained, if for a machine frame of, for example, 3 meters, two cotton outlets are adapted to the two cones 34 by adopting two cotton outlet structures, and then two distribution pipes 7 are adapted, each distribution pipe 7 only needs to adapt to a machine frame of 1.5 meters, so that the burden is relatively small, and the seed cotton distribution effect is relatively easy to realize.

The distribution pipe 7 shown in fig. 1 is preferably a seed cotton distributor disclosed in chinese patent document CN108103588A, and may be selected as a conventional triangular box, especially when the number of cotton outlet ports is relatively large.

With regard to the number of floral designs, it is not advisable to have more than 4 at most, and a relatively large number of floral designs, such as the design of the top panel 36 shown in fig. 4, would be very difficult.

For the convenience piping, the shrouding is the folded plate, and the crease divides the shrouding into the shrouding unit, and the quantity and the interface one-to-one that appears of shrouding unit correspond.

In the structure shown in fig. 4, the sealing plate unit is a flat plate, and the sealing plate forms an arch structure with a high middle and low two ends based on the fold.

Correspondingly, the arched direction of the arch structure is the longitudinal tail end of the secondary adjusting part, so that the flow direction of the seed cotton carding flow is facilitated.

In the configuration illustrated in fig. 2, the adapter tube comprises a flower bend 4 to set the flower direction. Correspondingly, the centripetal side of the knurled elbow 4 is the laterally inward side of the secondary adjustment.

And as a basic reference system, a shell plate of the secondary adjusting part corresponding to the short side of the second rectangle is recorded as a side plate, and a first air supplement opening with adjustable opening degree is formed in the side plate.

In the embodiment of the present invention, the plurality of components include air supply ports, such as the air supply port 37 provided on the side plate of the wind power adjusting portion 3 illustrated in fig. 4, and the air supply port 28 provided on the distribution adjusting portion 2 in the history of fig. 5, and for the distribution pipe 7, the arrangement of the air supply port is also a preferable choice with reference to the seed cotton distributor disclosed in chinese patent document CN 108103588A.

In some embodiments, the first air supply opening and other air supply openings can adopt the following structures:

slots 38 are arranged on two opposite sides of the first air supply opening;

an insert plate 39 is provided to be inserted into the insertion groove 38, and the opening degree of the first air supply opening is adjusted based on the degree by which the insert plate 39 covers the first air supply opening.

Similarly, like the distribution pipe 7, a second adjusting baffle is arranged in the distribution pipe, and the flow direction of the seed cotton is adjusted by changing the included angle between the second adjusting baffle and the longitudinal direction of the distribution pipe;

The matching structure of the inserting plate 39 and the inserting groove 38 is simple in structure and relatively easy to realize in the overall view, the requirement on the sealing performance is not high for the seed cotton distribution assembly, and the matching use of the inserting plate 39 and the inserting groove 38 can completely meet the requirement on seed cotton distribution.

As symmetrically arranged components, the first adjusting baffle is respectively provided with one piece at the two transverse ends of the primary adjusting part. Similarly, other components needing to be provided with the air supplementing opening can be arranged in a left-right symmetrical mode.

The distribution assembly comprises the distribution component and a dispersing and collecting part; specifically, the dispensing assembly further comprises:

the distributing pipes 7 correspond to the adapter pipes one to one, the cross sections of the distributing pipes are third rectangles, the length-width ratio of the third rectangles is gradually increased in the discharging direction, and the distributing pipes 7 can be directly selected from seed cotton distributing pipes disclosed in the Chinese patent document CN108103588A as described above.

The distribution assembly further comprises a receiving pipe 8, namely a component for butting the distribution assembly with lower-level cotton processing equipment, and the feeding ends of the receiving pipe 8 are sequentially arranged and matched with the discharging ends of the distribution pipes; accordingly, the cross-section of the outlet pipe 8 is a fourth rectangle having an aspect ratio of not less than 8, thereby having a better lateral distribution capability.

For the adapter tube, the adapter tube at least comprises a flower outlet bent tube 4 and a connecting bent tube 6 positioned on the side of the distribution tube 7, so that the seed cotton is guided to be attached to the panel corresponding to the long side of the third rectangle for discharging. The bent pipe is mainly used for changing the direction of the seed cotton flow, but also occupies a larger space, the path of the seed cotton flow is also lengthened, and the length of the whole adapter pipe is shortened as much as possible under the condition of meeting the requirement of changing the direction, so that the structure shown in figure 1 further comprises a straight pipe 5, and the straight pipe 5 is used for connecting the flower outlet bent pipe 4 and the connecting bent pipe 6.

Claims

1. A dispensing assembly, comprising:

2. The dispensing assembly of claim 1, wherein there are 2-4 said outlet ports;

3. The dispensing assembly of claim 2, wherein the sealing plate unit is a flat plate, and the sealing plate is folded to form an arch structure with a high middle and low ends;

4. The dispensing assembly of any of claims 1 to 3, wherein the adaptor tube comprises a knurled elbow, the centripetal side of the knurled elbow being laterally inward of the secondary regulator.

5. The distribution assembly of any one of claims 1 to 3, wherein the second regulating portion housing plate corresponding to the second rectangular short side is a side plate, and a first air supply opening with adjustable opening degree is formed on the side plate.

6. The dispensing assembly of claim 5, wherein the adjustable structure of the first air supply opening is:

slots are formed in two opposite sides of the first air supply opening;

7. The dispensing assembly of claim 1, wherein the first regulating baffle is provided with one at each of both lateral ends of the primary regulating portion.

8. The distribution assembly of claim 1, wherein the primary regulating part is provided with a flower inlet elbow at the front stage so as to guide the incoming seed cotton to be vertical or form an angle of not less than 60 degrees with the vertical direction and feed the incoming seed cotton to the primary regulating part.

9. The dispensing assembly of claim 8, wherein the cross-section of the flower inlet elbow is rectangular with an aspect ratio of not less than 2.

10. A dispensing assembly, wherein the dispensing assembly is provided with a dispensing element according to any one of claims 1 to 9; the dispensing assembly further comprises:

11. The dispensing assembly of claim 10, wherein the dispensing tube is provided with a second adjustable baffle, and the flow direction of the seed cotton is adjusted by changing an included angle between the second adjustable baffle and the longitudinal direction of the dispensing tube;

12. The dispensing assembly of claim 10, wherein the adapter tube comprises at least one of a flower outlet bend and a connecting bend at the side of the dispensing tube for guiding seed cotton to discharge onto the panel corresponding to the long side of the third rectangle.