Airflow channel adjusting assembly and lint cleaning machine

Abstract

The invention discloses an airflow channel adjusting assembly and a lint cleaning machine, the airflow channel adjusting assembly is used for adjusting an air supplementing opening formed between a lower cover plate of a cotton outlet channel in the lint cleaning machine and a corresponding licker-in, and the airflow channel adjusting assembly comprises an adjusting cover plate and an air supplementing opening, the adjusting cover plate is connected to the corresponding end of the cotton outlet channel lower cover plate through a flexible connecting piece, so that the adjusting cover plate has the adjusting allowance in the vertical direction. And the adjusting structure or the adjusting mechanism is used for installing the two ends of the adjusting cover plate on the lint cotton cleaning machine wall plate so as to adjust the size of the air supplementing opening. According to the airflow channel adjusting assembly, the adaptability to the impurity rate of lint cotton can be improved.

Description

Technical Field

[0001] This invention relates to an airflow channel adjustment component at the cotton outlet channel of a cotton cleaning machine, and also to a cotton cleaning machine. Background Technology

[0002] In cotton processing, seed cotton undergoes ginning in a ginning machine, achieving a primary separation of cotton fibers from cotton seeds. The resulting collection of separated cotton fibers is called lint, which is typically transferred to the next processing equipment via a conveyor pipe. Due to the prevalence of mechanized harvesting in cotton production, seed cotton often has a relatively high impurity content. Although multiple seed cotton cleaning processes are performed before the ginning station, the final lint still has a high impurity rate. Therefore, the next processing equipment is usually not a baler, but a lint cleaning machine (commonly referred to as a lint cleaner, hereinafter referred to as a lint cleaner) to further clean the lint before baling it.

[0003] Correspondingly, due to the characteristics of machine-harvested cotton, the lint obtained after ginning often contains impurities such as cotton leaves, broken cotton stalks, and dead fibers exceeding the predetermined impurity content requirements. To ensure lint quality, a lint cleaner is needed to remove these impurities. In current cotton processing technology, after the lint is output from the ginning machine, it generally undergoes an initial cleaning by an airflow-type lint cleaner, followed by a secondary cleaning by a sawtooth-type lint cleaner before being packaged. Since the impurity content of seed cotton depends on factors such as harvest time and climate, the impurity content of seed cotton will fluctuate to some extent, and this fluctuation will affect the impurity content of the produced lint. For different qualities of lint, the operating parameters of the lint cleaner need to be adjusted. These operating parameters include adjusting the fit gap between the lint outlet cover plate and the licker-in roller at the cotton outlet channel of the lint cleaner. The main purpose of adjusting this fit gap is to adjust the supplementary air volume, thereby improving fiber transfer and reducing cotton return during beating. Furthermore, supplemental air alters the airflow within the cotton cleaning machine, helping more impurities and short fibers detach from the fiber matrix and be carried out of the machine by the airflow, increasing the waste rate. It also reduces overall energy consumption and improves cleaning efficiency by changing the airflow within the machine. Therefore, placing a supplemental air inlet at the beginning of the cotton outlet channel has a significant impact on the performance of the cotton cleaning machine. However, as mentioned earlier, due to differences in cotton quality (mainly impurity content), the required supplemental air volume will vary.

[0004] For reference, Chinese patent document CN223176262U discloses a brush-feed cotton cleaning machine. The cotton outlet channel is constructed by an upper cotton outlet component and a lower cotton outlet component. A gap is left between the lower cotton outlet component and the licker-in roller. This gap connects to the outside or the inner cavity of the cotton box for air replenishment. This gap is the air replenishment port. However, most of the current air replenishment ports are fixed and cannot adjust the air replenishment capacity of some ports according to the working conditions.

[0005] It should be noted that the above background technology is technical information acquired by the inventor in order to deduce the relevant technical problems or obtained in the process of designing the present invention, and does not mean that the above background technology was already prior art before the application of this invention, especially the technical content of the cognition and confirmation of the relevant technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide an airflow channel adjustment component adapted to the air supply inlet to improve adaptability to the impurity content of cotton. This invention also provides a cotton cleaning machine equipped with the airflow channel adjustment component.

[0007] According to a first aspect of the present invention, an airflow channel adjustment assembly is provided for adjusting the air supply port formed between the lower cover plate of the cotton outlet channel and the corresponding licker-in roller in a cotton cleaning machine. The airflow channel adjustment assembly includes: An adjusting cover plate is connected to the corresponding end of the lower cover plate of the cotton outlet channel via a flexible connector, thereby providing the adjusting cover plate with an adjustment margin in the vertical direction; and An adjustment structure or adjustment mechanism is provided for mounting the two ends of the adjustment cover on the wall panel of the cotton cleaning machine to adjust the size of the air inlet.

[0008] Optionally, the adjusting cover is connected to the lower cover of the cotton outlet channel via a flexible diaphragm.

[0009] Optionally, the side of the adjusting cover plate connected to the lower cover plate of the cotton outlet channel has a front flange that is folded down by more than or equal to a first folding angle, and the lower cover plate of the cotton outlet channel has a corresponding connecting flange that is folded down by more than or equal to a second folding angle, wherein the sum of the second folding angle and the first folding angle is greater than or equal to 200° and less than or equal to 275°. Accordingly, the flexible diaphragm is connected to the first folded edge and the second folded edge, and there are two connection points. The portion of the flexible diaphragm between the two connection points has a margin to accommodate the adjustment amount of the adjustment structure or adjustment mechanism.

[0010] Optionally, the connection between the flexible diaphragm and the connecting flange and the front flange is a connection using a pressure plate and fasteners.

[0011] Optionally, the adjustment structure is adapted as a guide pair, and the guiding direction of the guide pair is the adjustment direction; Accordingly, a locking element adapted to the guide pair is provided for locking after the adjustment cover plate has been adjusted.

[0012] Optionally, the guiding pair has: In the first configuration, the adjusting cover has second end plates at both ends, one of which or the wall panel has a first elongated hole at a corresponding position, and the other has a first fixing hole; bolts are provided that pass through the first elongated hole and the first fixing hole and are guided in the first elongated hole to form a guide pair; or The second structure has a linear guide rail or guide rod on the corresponding wall panel, and a slider or guide sleeve on the second end plate of the adjusting cover to form a guide pair; Correspondingly, the extension direction of the first elongated hole, the extension direction of the linear guide rail, and the rod direction of the guide rod are vertical.

[0013] Optionally, the adjusting cover has a first part and a second part in the front-rear direction, and the first part and the second part are continuously ductible; The first part is a flat plate, and the second part is a curved plate, with the center of curvature of the second part located on the side where the corresponding licker roller is located.

[0014] Optionally, the connection between the first part and the second part is located on the front side of the front and rear mid-surfaces of the corresponding licker rollers.

[0015] Optionally, a circumferential adjustment element is provided, which includes a splicing plate and a bending combing reinforcement plate connected to the rear end of the splicing plate; Accordingly, the lower surface of the connecting plate mates with the upper surface of the second part, and one of the connecting plate and the second part has a third elongated hole, while the other has a third fixing hole. The extension direction of the third elongated hole is the circumferential extension direction of the second part.

[0016] According to a second aspect of the present invention, a cotton cleaning machine is provided, including the airflow channel adjustment component described in the first aspect of the present invention.

[0017] According to the embodiments of the present invention, the airflow channel adjustment component, compared with the fixed early model air inlet structure, changes the distance between the adjustment cover plate in the airflow channel adjustment component and the corresponding licker roller by adjusting it in the vertical direction, thereby changing the size of the air inlet and making it more adaptable to the impurity content of cotton. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the right side of a cotton cleaning machine in one embodiment (one wall panel is omitted).

[0019] Figure 2 for Figure 1 Enlarged view of Part I.

[0020] Figure 3 This is a schematic diagram of the connection structure between the adjusting cover and the lower cover of the cotton outlet channel in one embodiment.

[0021] Figure 4This is a schematic diagram of the right-side structure of the adjusting cover in one embodiment.

[0022] Figure 5 This is a schematic diagram of the right-side structure of the adjusting cover in another embodiment.

[0023] Figure 6 This is a schematic diagram of the main structure of the adjusting cover in one embodiment.

[0024] Figure 7 This is a schematic diagram of the main structure of the adjusting cover in another embodiment.

[0025] Figure 8 This is a schematic diagram of the right-side structure of the circumferential adjustment member in one embodiment.

[0026] Figure 9 This is a schematic diagram (partial section) of the right side view of the circumferential adjustment component in another embodiment.

[0027] Figure 10 This is a top view of the circumferential adjustment component in another embodiment.

[0028] In the diagram: 1. Lower cover of cotton outlet channel, 2. Cotton outlet channel, 3. Upper cover of cotton outlet channel, 4. Impurity suction assembly, 5. Slide, 6. Air baffle assembly, 7. First row of impurity knife assembly, 8. Front cover, 9. Upper licker-in roller, 10. Front inspection port, 11. Pressing roller, 12. Stripping roller, 13. Upper licker-in roller, 14. Carding component, 15. Carding adjustment assembly, 16. Wall panel, 17. Lower licker-in roller, 18. Second row of impurity knife assembly, 19. Rear inspection port, 20. Rear cover, 21. Lower cover assembly, 22. Airflow channel adjustment assembly, 23. Second row of impurity channel. 24. First end plate, 25. First bolt, 26. First pressure plate, 27. Connecting rubber, 28. Second pressure plate, 29. Second end plate, 30. First elongated hole, 31. Second bolt, 32. Second reinforcing plate, 33. Adjusting cover plate, 34. First stud, 35. Nut, 36. Elastic washer, 37. Air inlet, 38. Circumferential adjusting component, 39. Front flange, 40. Rear flange, 41. Second fixing hole, 42. Third fixing hole, 43. Third elongated hole, 44. Fourth fixing hole, 45. Second stud, 46. Fourth elongated hole. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. In the embodiments of the present invention, the focus is on describing the adjustment of the airflow capacity of the air inlet 37. This adjustment involves two adjustment mechanisms: one is the vertical adjustment, used to adjust the relationship between the regulating cover 33 and... Figure 1 The first is the radial distance between the middle and lower licker rollers 17; the second is the adjustment of the wrap angle of the adjusting cover plate 33 corresponding to the lower licker roller 17, i.e., the circumferential adjustment, in which the adjustment of the aforementioned radial distance is the main focus, and the circumferential adjustment is the auxiliary.

[0030] It should be understood that cotton processing equipment typically has defined front-back and left-right directions. For a cotton cleaning machine, the two sides of the cotton flow direction define the machine's spokes, each with a corresponding width. The left and right directions are also referred to as the transverse or width directions. For a cotton cleaning machine, the left and right sides of the machine casing are constructed from relatively thick plates, such as steel plates, to form the wall panels 16. These wall panels 16 serve as the main mounting base for the components inside the casing, with most components mounted directly or indirectly on them.

[0031] In the front-back direction and above, the components used to enclose the cavity of the combined wall panel 16 are generally not load-bearing and are usually made of sheet metal, and are often referred to as cover panels.

[0032] Correspondingly, the longitudinal direction is determined by the front-to-back direction, which is also called the longitudinal direction, the head-to-tail direction, etc.

[0033] In the embodiments of the present invention, there are defined upper and lower positions. However, it should be understood that in the mechanical field, upper and lower do not specifically refer to directly above or below, but generally indicate a height difference. For example, the upper licking roller 9 is not necessarily located directly above the lower licking roller 17; they are a pair of relative concepts with a height difference in positional relationship. Furthermore, in the embodiments of the present invention, upper, lower, as well as other terms such as left, right, inner, outer, front, and rear, and similar expressions, are for illustrative and explanatory purposes only, and are limited to not causing misunderstanding by those skilled in the art.

[0034] Similarly, statements that are mutually explanatory, such as vertical or horizontal, are also for the purpose of explanation or clarification.

[0035] Additionally, to facilitate the description of the relationship between one component or component and another component or component shown in the accompanying drawings, spatially relative terms, such as "lower," "upper," and similar terms, may be used in embodiments of the invention. It should be understood that the spatially relative terms are intended to cover different orientations of the device during use and operation, in addition to those depicted in the accompanying drawings.

[0036] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0037] Furthermore, as a special note, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] It should be understood that in the field of mechanics, standard geometric terms are typically used to describe approximate mechanical structures, without implying that the mechanical mechanism possesses the geometric characteristics corresponding to those terms in a strict sense. For example, the curved plate commonly referred to in the field of mechanics is actually a partially cylindrical plate. In the field of mechanics, a certain explicit feature is usually used to determine the terminology, which does not mean that its structure or construction is completely constrained by the corresponding geometric concept.

[0039] It should be noted that the airflow channel adjustment component based on the embodiments of the present invention is a technological achievement resulting from the upgrade and transformation of the double-pinching roller cotton cleaning machine. Therefore, as Figure 1 The illustrated cotton cleaning machine partially adopts the corresponding structure of a double-pinned roller cotton cleaning machine. However, it is clear that the adjustment of the air supply port 37 by the airflow channel adjustment component 22 and the resulting technical effect are not necessarily related to whether the applicable cotton cleaning machine is a double-pinned roller cotton cleaning machine; it is equally applicable to single-pinned roller cotton cleaning machines. In the embodiments of the present invention, a double-pinned roller cotton cleaning machine is used as an example for illustration, and those skilled in the art can apply it to single-pinned roller cotton cleaning machines without any creative effort.

[0040] The improvements made to the embodiments of the present invention are as follows Figure 1 In the illustrated structure, the gap between the airflow channel adjustment component 22 and the lower licker-in roller 17 in the double-licker-in cotton cleaning machine is adjusted, which is the size of the air supply port 37. For the single-licker-in cotton cleaning machine, the gap between the airflow channel adjustment component 22 and the lower licker-in roller in the single-licker-in cotton cleaning machine is adjusted.

[0041] Figure 1 In the illustrated double-roller cotton cleaning machine, the cotton outlet channel 2 is pushed forward by suction to remove the cotton lint. The upper cover 3 of the cotton outlet channel 2 must first ensure isolation from the upper side to prevent the cleaned debris from entering the cotton lint. The lower structure, namely the lower cover 1 of the cotton outlet channel, is located at a predetermined distance from the lower roller 17 to form the air inlet 37. The function of the air inlet 37 has been explained in detail in the background section and will not be repeated here.

[0042] In the embodiments of the present invention, the focus is on the adjustability of the airflow channel adjustment component 22, thereby changing the air supply capacity of the air supply port 37. In a further improved scheme, the air supply method is also improved. The former is achieved by adjusting the distance between the airflow channel adjustment component 22 and, for example, the lower piercing roller 17, that is, the adjustment in the vertical direction, which is the radial adjustment of the piercing roller relative to, for example, the lower piercing roller 17. The latter is achieved by adjusting the circumferential adjustment component 38 in the circumferential direction of, for example, the lower piercing roller 17.

[0043] It should be noted that due to the possible interference between the components during adjustment, such as when adjusting the adjustment cover plate 33, a circumferential component will be generated, and when adjusting the circumferential adjustment component 38, a radial component will be generated. This needs to be specifically explained, that is, the existence of the circumferential or radial component is not the main purpose. At the same time, since the corresponding components are relatively small in magnitude relative to the main adjustment direction, they do not affect the definition of radial adjustment and circumferential adjustment.

[0044] Figure 2 , Figure 4 and Figure 5 The middle part is the adjustment cover plate 33 configured in the airflow channel adjustment component 22. The main body of the adjustment cover plate 33 is, for example, galvanized steel plate, aluminum alloy plate, etc., its upper surface is the working surface, its lower surface is its back surface, and the surface is provided with a second reinforcing rib 32.

[0045] The two ends of the adjusting cover plate 33 are provided with second end plates 29, which are used to adjust the installation and adjustment of the adjusting cover plate 33 on the wall panel 16.

[0046] The connection between the adjusting cover plate 33 and the lower cover plate 1 of the cotton outlet channel is a flexible connection. This flexible connection is mainly used to balance the positional variation of the adjusting cover plate 33 when it is adjusted within a predetermined adjustment range.

[0047] Correspondingly, the adjusting cover 33 can also be understood as an extension of the lower cover 1 of the cotton outlet channel, which has an adjustment function. Obviously, this extension is located at the rear end of the lower cover 1 of the cotton outlet channel, that is, the end that cooperates with the spiked roller.

[0048] Accordingly, the flexible connection allows the adjusting cover 33 to have an adjustment margin in the vertical direction. The air supply capacity of the air supply port 37 can be adjusted by adjusting the adjusting cover 33 in the vertical direction. Figure 2 It can be seen that when the adjusting cover plate 33 is adjusted downward, the distance between it and the lower burr roller 17 increases, and the air supply capacity of the air supply port 37 is enhanced. Obviously, when the adjusting cover plate 33 is adjusted upward, the air supply rate of the air supply port 37 will decrease accordingly.

[0049] Correspondingly, an adjustment structure or adjustment mechanism is provided for the installation and adjustment of both ends of the adjustment cover 33 on the wall panel 16, thereby adjusting the size of the air supply vent 37.

[0050] Regarding the adjustment of the adjusting cover plate 33, linear adjustment is preferred, such as... Figure 1 and 2The adjustment shown is achieved by means of the first elongated hole 30, and it is clear that the length of the first elongated hole 30 determines its adjustment range. This type of adjustment is referred to as the adjustment structure. Another type of adjustment is achieved by means of, for example, a linear drive mechanism. The main consideration in introducing the linear drive mechanism is rapid adjustment relative to the adjustment structure, and it can be integrated into the control system of the cotton processing production line.

[0051] Regarding the adjustment mechanism, for example, a lifting mechanism is provided on the lower side of the adjustment cover plate 33, such as a lead screw mechanism. The upper end of the lead screw of the lead screw mechanism is connected to, for example, the second reinforcing plate 32. When adjustment is required, the servo motor driving the lead screw mechanism drives the lead screw nut to rotate, and the lead screw nut drives the lead screw to rise and fall to achieve precise adjustment.

[0052] Generally, adjustment mechanisms such as lead screw mechanisms are equipped with guide components. Therefore, when an adjustment mechanism is used, it is not necessary to configure a guide component separately for the adjustment cover 33 in the adjustment direction. However, in the preferred embodiment, it is still necessary to provide a guide component for the adjustment cover 33 in the adjustment direction.

[0053] Regarding the adjustment structure, in order to ensure the stability of the adjustment process, the adjustment structure is adapted to be a guide pair, and the guiding direction of the guide pair is the adjustment direction. With the support of the guide pair, the adjustment process will be relatively stable.

[0054] Accordingly, relying solely on the guide pair often lacks a self-locking function. Therefore, a locking component adapted to the guide pair is also required to lock the adjusting cover 33 after adjustment. For example, two linear guide rails are provided on each of the two side wall plates 16 at positions corresponding to the ends of the adjusting cover 33. The sliders at both ends of the adjusting cover 33 are guided by the four guide rails to form a guide rail pair. A handle or set screw, for example, needs to be provided on the slider adapted to the adjusting cover 33 to lock the guide rail pair after adjustment. Since this structure is common knowledge in the mechanical field, it will not be elaborated further here.

[0055] In some embodiments, a guide pair with a relatively simple structure but easier construction can be adopted, referred to as the first configuration. In this first configuration, each end of the adjusting cover plate 33 has one or two second end plates 29. Figure 2 Each has one piece.

[0056] In some embodiments, the second end plate 29 is provided with a pair of first elongated holes 30, and the wall plate 16 can be provided with a first fixing hole accordingly. Bolts are then inserted through the first elongated holes 30 and the first fixing holes corresponding to the first elongated holes 30. Obviously, the position of the bolts is fixed in the extension direction of the first elongated holes 30, so as to provide guidance for the first elongated holes 30. After the bolts are tightened, the guide pair formed by the first elongated holes 30 and the bolts can be locked.

[0057] In other embodiments, such as, the second end plate 29 Figure 5 As shown, a second fixing hole 41 is provided on the second end plate 29, and a corresponding second elongated hole is opened on the wall plate 16. The extension directions of the first elongated hole 30 and the second elongated hole are both adjustment directions, that is, the up and down directions. Similarly, a guide pair can be constructed with the help of bolts, and adjustment and locking can be achieved by loosening and tightening the bolts.

[0058] The second form of the guide pair is called the second structure, which is the case where a guide component is adapted in the aforementioned example of a lead screw mechanism, except that the adjustment method is manual. Correspondingly, a linear guide rail or guide rod is provided on the corresponding wall plate 16, and a slider or guide sleeve is provided on the second end plate 29 of the adjusting cover plate 33 to form a guide pair.

[0059] The foregoing content described how the guide rail pair is locked. For the guide rod and guide sleeve pair, locking is easier to achieve in the mechanical field. It can generally be achieved by using a set screw. The guide sleeve is provided with a set screw hole, which provides a set screw that mates with the set screw hole. After adjustment, tightening the set screw will lock the guide rod and guide sleeve pair.

[0060] Regarding the connection between the adjusting cover plate 33 and the lower cover plate 1 of the cotton outlet channel, in a preferred embodiment, the connection is achieved through a flexible diaphragm. The flexible diaphragm can be a relatively soft sheet such as a rubber sheet or a soft plastic sheet, and the rubber sheet and plastic sheet (e.g., a polyethylene sheet) also have a certain rigidity, thereby forming a shape like... Figure 2 The upward arch shown in the image makes it less prone to collapse. Its thickness is roughly equivalent to, for example, the thickness of the sheet metal used in the lower cover plate 1 of the cotton outlet channel.

[0061] To reduce interference during adjustment, the side of the adjusting cover 33 connected to the lower cover 1 of the cotton outlet channel has a front flange 39 that is folded downwards by an angle greater than or equal to the first fold angle. Correspondingly, the lower cover 1 of the cotton outlet channel has a connecting flange that is folded downwards by an angle greater than or equal to the second fold angle. The sum of the second fold angle and the first fold angle is greater than or equal to 200° and less than or equal to 275°. The folding amount of greater than or equal to 200° creates a wedge-shaped space between the front flange 39 and the connecting flange. On the one hand, this provides sufficient accommodating space when fasteners and, for example, the first pressure plate 26 and the second pressure plate 28 are applied. On the other hand, it does not cause positional interference with the lower cover 1 of the cotton outlet channel when the adjusting cover 33 is adjusted.

[0062] The sum of the folding angles should not be too large, mainly for two reasons. The first reason is that the presence of folding edges will increase, for example, the shear section modulus of the adjusting cover plate 33. Within the predetermined folding angle variation, the shear section modulus gradually increases with the increase of the folding angle until it reaches its maximum, and then the shear section modulus gradually decreases from the peak value. Therefore, for a single folding angle, it should not exceed 150°. If the condition of avoiding interference is met, it is advisable not to exceed 135°.

[0063] Secondly, considerations include the arrangement of fasteners and their compatibility with the end plates, with the latter being the primary focus. For example, the second end plate 29 needs to have a certain vertical dimension to accommodate the first elongated hole 30. Under these conditions, the front flange... Figure 4 and Figure 5 The first end plate 29 has a certain wrapping around the front side. If the first folding angle is too large, the transition on the front side of the first end plate 29 will be more abrupt.

[0064] Accordingly, the flexible diaphragm is connected to the first folded edge and the second folded edge, and there are two connection points. The portion of the flexible diaphragm between the two connection points has a margin to accommodate the adjustment amount of the adjustment structure or adjustment mechanism.

[0065] The margin determined regarding the connection point is obviously the portion of the flexible diaphragm that can move relatively freely, such as the portion not held by the first pressure plate 26 and the second pressure plate 28.

[0066] In contrast, flexible diaphragms lack strength and are easily damaged, for example, by being directly pressed with screws. Figure 2 and Figure 3 The connecting rubber sheet 27 shown is easily damaged at the point where the screw head is pressed. Therefore, the connection between the flexible diaphragm, such as the connecting rubber sheet 27, and the connecting flange and the front flange 39 is a connection using a pressure plate and fasteners. Under these conditions, the pressure plate is made of a rigid component such as a steel plate, resulting in a relatively large pressure-bearing portion of the flexible diaphragm, making it less prone to tearing.

[0067] exist Figure 2 , Figure 4 and Figure 5 In the illustrated structure, the adjusting cover 33 has a first part and a second part in the front-back direction, and the first part and the second part are continuously ductile. The first part is a flat plate, and the second part is a curved plate, the center of curvature of which is located on the side where the corresponding licker roller is located, that is, a plate that is concave downward in the middle in the front-back direction.

[0068] Furthermore, the connection between the first part and the second part is located on the front side of the front and rear middle surfaces of the corresponding puncher roller, while the rear part of the second part is located on the rear side of the front and rear middle surfaces of the corresponding puncher roller. Under this condition, the second part has a portion located on the front and rear middle surfaces of the corresponding puncher roller, which is compatible with the top circle of the puncher roller and facilitates the sorting of the replenished airflow.

[0069] exist Figure 2 In the illustrated structure, a circumferential adjustment element 38 is provided, which is equivalent to extending the cotton channel lower cover 1 further rearward. However, the airflow channel adjustment component 22 is not used to directly discharge the lint, but is mainly used to construct the air supply vent 37.

[0070] Furthermore, the circumferential adjusting member 38 includes a continuing plate and a bending and combing reinforcing plate connected to the rear end of the continuing plate; correspondingly, the lower surface of the continuing plate mates with the upper surface of the second part, and as shown... Figures 6-10 The connecting plate and one of the second parts have a third elongated hole 43, and the other has a third fixing hole. The extension direction of the third elongated hole 43 is the circumferential extension direction of the second part. The function of this type of adjustment structure has been described in detail above and will not be repeated here.

[0071] The above description is illustrative in conjunction with the accompanying drawings and is not intended to limit the invention. Within the framework of this invention, the above embodiments or different embodiments can be combined without conflict. Although the invention has been described in detail in the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this invention.

Claims

1. An air flow passage regulating assembly for regulating the air flow through the air flow passage formed between the lower cover plate of the lint cleaning machine and the corresponding licker-in roller, characterized in that, The airflow channel regulating component includes: An adjusting cover plate is connected to the corresponding end of the lower cover plate of the cotton outlet channel via a flexible connector, thereby providing the adjusting cover plate with an adjustment margin in the vertical direction; and An adjustment structure or adjustment mechanism is provided for mounting the two ends of the adjustment cover on the wall panel of the cotton cleaning machine to adjust the size of the air inlet.

2. The airflow passage adjustment assembly of claim 1, wherein, The adjusting cover is connected to the lower cover of the cotton outlet channel via a flexible diaphragm.

3. The airflow passage adjustment assembly of claim 2, wherein, The side of the adjusting cover plate connected to the lower cover plate of the cotton outlet channel has a front flange that is folded down by more than or equal to the first folding angle. The lower cover plate of the cotton outlet channel has a connecting flange that is folded down by more than or equal to the second folding angle. The sum of the second folding angle and the first folding angle is greater than or equal to 200° and less than or equal to 275°. Accordingly, the flexible diaphragm is connected to the first folded edge and the second folded edge, and there are two connection points. The portion of the flexible diaphragm between the two connection points has a margin to accommodate the adjustment amount of the adjustment structure or adjustment mechanism.

4. The airflow channel regulating assembly according to claim 3, characterized in that, The connection between the flexible diaphragm and the connecting flange and the front flange is a connection using a pressure plate and fasteners.

5. The airflow channel regulating assembly according to claim 1, characterized in that, The adjustment structure is adapted to be a guide pair, and the guiding direction of the guide pair is the adjustment direction; Accordingly, a locking element adapted to the guide pair is provided for locking after the adjustment cover plate has been adjusted.

6. The airflow channel regulating assembly according to claim 5, characterized in that, The guiding pair has: In the first configuration, the adjusting cover has second end plates at both ends, one of which or the wall panel has a first elongated hole at a corresponding position, and the other has a first fixing hole; bolts are provided that pass through the first elongated hole and the first fixing hole and are guided in the first elongated hole to form a guide pair; or The second structure has a linear guide rail or guide rod on the corresponding wall panel, and a slider or guide sleeve on the second end plate of the adjusting cover to form a guide pair; Correspondingly, the extension direction of the first elongated hole, the extension direction of the linear guide rail, and the rod direction of the guide rod are vertical.

7. The airflow channel regulating assembly according to claim 1, characterized in that, The adjusting cover has a first part and a second part in the front-to-back direction, and the first part and the second part are continuously commutative. The first part is a flat plate, and the second part is a curved plate, with the center of curvature of the second part located on the side where the corresponding licker roller is located.

8. The airflow channel regulating assembly according to claim 7, characterized in that, The connection between the first and second parts is located on the front side of the front and rear mid-surfaces of the corresponding licker rollers.

9. The airflow channel regulating assembly according to claim 7 or 8, characterized in that, A circumferential adjustment component is provided, which includes a splicing plate and a bending combing reinforcement plate connected to the rear end of the splicing plate; Accordingly, the lower surface of the connecting plate mates with the upper surface of the second part, and one of the connecting plate and the second part has a third elongated hole, while the other has a third fixing hole. The extension direction of the third elongated hole is the circumferential extension direction of the second part.

10. A cotton cleaning machine, characterized in that, Includes the airflow channel adjustment component as described in any one of claims 1 to 9.

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