Cotton flow regulating assembly and lint cleaner

Abstract

The utility model discloses a kind of middle airflow adjusting assembly and lint cleaning machine, wherein middle airflow adjusting assembly, for the adjustment of the gap between upper cover plate and taker-in in cotton channel in lint cleaning machine, the middle airflow adjusting assembly includes: wind resistance component, two ends are installed on the wallboard of lint cleaning machine through longitudinal adjustment structure or mechanism, and between upper cover plate and taker-in in cotton channel, and wind resistance component and taker-in have the sixth gap between, and first sealing structure is formed by flexible connection or engagement between upper cover plate and taker-in in cotton channel. According to the middle airflow component of the utility model is adjusted according to working condition.

Description

Technical Field

[0001] This utility model relates to a central airflow regulating component for adjusting airflow between upper and lower licker rollers in a cotton cleaning machine. This utility model also relates to a cotton cleaning machine equipped with the central airflow regulating component. 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 cotton harvesting in modern times, seed cotton often has a high impurity content. Although multiple seed cotton cleaning processes have been performed before the ginning station, the final lint still has a relatively high impurity rate. Therefore, the next processing equipment is usually not a baling machine, but rather 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] There are various types of cotton cleaning machines. One type uses a licker-in roller and a set of scrap removal knives that cooperate with the licker-in roller as cleaning components. The licker-in roller is provided with spikes or needles. For example, Chinese patent document CN203144583U discloses a double-roller cotton cleaning machine, which includes an upper licker-in roller and a set of upper scrap removal knives that cooperate with the upper licker-in roller, as well as a lower licker-in roller located below the upper licker-in roller and a set of lower scrap removal knives that cooperate with the lower licker-in roller. A lower cotton pressing roller is also provided to press the cotton transferred from the upper licker-in roller to the lower licker-in roller onto the lower licker-in roller to ensure that the cotton can rotate with the lower licker-in roller.

[0004] The upper licker-in roller is used to receive the lint that falls off from the dust cage assembly located inside the upper casing of the lint cleaner. A pressing roller is used to press the lint onto the upper licker-in roller to ensure that the lint rotates with it. To prevent the lint from flying off the upper licker-in roller, a cover assembly is usually provided around the upper licker-in roller, except for the side where the upper row of scrap knives is located, the side that receives the lint, and the side that transfers the lint to the lower licker-in roller.

[0005] Similarly, for the licker-in roller, in addition to the side that receives the lint, the side where the cotton outlet channel is located, and the side where the lower scraper assembly is located, the remaining parts also need to be shielded around the licker-in roller using, for example, a cover assembly or other components, to prevent the lint from flying out. Only on the side where the cotton outlet channel is located, the lint is detached from the licker-in roller based on centrifugal force and the suction of the cotton outlet channel, and then discharged from the cotton outlet channel.

[0006] For a single-pinning roller cotton cleaning machine, such as Chinese patent document CN120138816A, a cotton cleaning machine is disclosed. This cotton cleaning machine is equipped with a pinning roller, and its configuration is mostly the same as the configuration of the upper pinning roller and the upper waste removal knife mentioned above. A cotton suction channel is provided on one side of the pinning roller. Except for the side with the waste removal knife, the side with the cotton suction channel, and the side that receives cotton from the dust cage, the rest of the parts need to be shielded (except for the part with the air supply port). Finally, the cotton is detached from the pinning roller by the suction of the cotton suction channel and the centrifugal force generated during the rotation of the pinning roller, and then enters the cotton suction channel for discharge.

[0007] Since cotton lint is primarily removed from the cotton cleaning machine by suction, a negative pressure is created at the outlet channel. For example, in a double-roller cotton cleaning machine, the rotation of the lower roller generates airflow, which can carry a small amount of cotton fibers between the upper and lower rollers. Therefore, it is necessary to consider installing an air-blocking structure at the end of the upper cover plate of the outlet channel. Similarly, for a single-roller cotton cleaning machine, it is also necessary to prevent residual cotton fibers on the roller from flying upwards through the gap between the upper cover plate and the roller in the outlet channel. Based on this consideration, the gap between the upper cover plate and the roller in the outlet channel should be as small as possible. However, factors such as cotton moisture regain, fiber length, and impurity content must be considered during cotton processing. If the gap is too small, it will cause wear on the clamping equipment, easily increase equipment vibration, and make long fibers in the cotton more susceptible to damage. Therefore, the gap should be matched with the characteristics of the raw materials, rather than being a fixed value, in order to optimize cleaning efficiency, fiber damage control and impurity removal rate. In addition, as mentioned above, it is also necessary to control the cotton fibers remaining on the licker-in roller from flying out of the cover plate on the cotton outlet channel.

[0008] However, the part currently used for the upward air-closing of the upper cover plate of the cotton outlet channel is usually directly constructed on the upper cover plate of the cotton outlet channel. The construction method is usually fixed and it is difficult to adjust according to the actual working conditions.

[0009] It should be noted that the above background technology is technical information that the inventor has acquired in order to deduce the relevant technical problems or obtained in the process of designing this utility model, and does not mean that the above background technology was already prior art before this utility model application, especially the technical content of the cognition and confirmation of the relevant technical problems. Utility Model Content

[0010] The purpose of this invention is to provide a central airflow regulating component that is suitable for adjustment according to working conditions. This invention also provides a cotton cleaning machine equipped with the central airflow regulating component.

[0011] According to a first aspect of the present invention, a central airflow regulating component is provided for adjusting the gap between the cover plate on the cotton outlet channel and the licker-in roller in a cotton cleaning machine. The central airflow regulating component includes: The wind-blocking component is installed on the wall panel of the cotton cleaning machine at both ends through a longitudinal adjustment structure or mechanism, and is located between the upper cover plate of the cotton outlet channel and the licker-in roller. The wind-blocking component and the licker-in roller have a sixth gap, and the wind-blocking component and the upper cover plate of the cotton outlet channel are flexibly connected or joined to form a first sealing structure.

[0012] Optionally, the wind-blocking component is a rectangular tube structure, and the two panels of the rectangular tube structure are horizontal panels; The rectangular tube structure has a second end plate at both ends for connection with the wall panel.

[0013] Optionally, one of the corresponding positions of the second end plate or wall panel has a first adjustment hole and the other has a second fixing hole; Accordingly, the first adjustment hole is a longitudinally extending elongated hole.

[0014] Optionally, the joining forms the first sealing structure in the following manner: A horizontally extending elastic sealing sheet is provided at the end of the cover plate facing the licker-in roller in the cotton outlet channel. The horizontally extending portion of the elastic sealing sheet is lower than the upper panel of the air baffle assembly, so that the elastic sealing sheet abuts against the vertical panel of the air baffle assembly facing the cover plate in the cotton outlet channel and flips up to form a sealing allowance portion.

[0015] Optionally, it is applicable to a double-pinning roller cotton cleaning machine, and the central airflow regulating component accordingly includes a sealing component to adapt to the distance between the wind-blocking component and the upper pinning roller; The middle sealing component has a seventh gap with the corresponding lower punch roller, and is connected to the air-blocking component with a joint seal.

[0016] Optionally, the connection between the central sealing assembly and the corresponding wall panel has a longitudinal adjustment structure or mechanism.

[0017] According to a second aspect of the present invention, a cotton cleaning machine is provided, including the central airflow regulating component described in the first aspect of the present invention.

[0018] Optionally, it includes a cotton combing structure for transferring cotton from the upper licker-in roller to the lower licker-in roller in a cotton cleaning machine, and the cotton combing structure includes a combing member located in a triangular area defined by the cooperation of the upper licker-in roller and the lower licker-in roller, and the side of the combing member facing the lower licker-in roller has a second curved surface, and the side facing the upper licker-in roller has a first surface, the first surface and the second curved surface intersect at the apex of the triangular area to define a cotton stripping section; The first gap between the cotton stripping section and the upper licker-in roller is no more than 4.5 mm, and the second gap between the cotton stripping section and the lower licker-in roller is 12~20 mm. The gap between the second curved section and the lower licker-in roller gradually decreases from the cotton stripping section as the starting point, so as to press the lint stripped from the upper licker-in roller onto the lower licker-in roller.

[0019] Optionally, the first surface is a first curved surface.

[0020] Optionally, the gap between the first curved surface and the upper licker-in roller is a fixed value or gradually increases from the cotton stripping section as the starting point, with the maximum increase not exceeding 1.8 times the second gap.

[0021] Optionally, the first gap is no greater than 3.5 mm.

[0022] Optionally, the wrap angle of the lower squeegee roller corresponding to the second curved surface is 30°~42°.

[0023] According to the embodiment of this utility model, the central airflow regulating component has an air-blocking component between the cover plate and the licker-in roller in the cotton outlet channel. The air-blocking component is installed on the wall plate of the cotton cleaning machine through a longitudinal adjustment structure or mechanism. Through this adjustment, the gap between the air-blocking component and the licker-in roller can be adjusted according to the working conditions, thereby having better adaptability to the quality of cotton. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the right-side view of the structure inside the lower casing of the cotton cleaning machine in one embodiment.

[0025] Figure 2 for Figure 1 The magnification ratio of Part I refers to the magnification ratio relative to the original image.

[0026] Figure 3 This is a schematic diagram of the right-side structure of the cotton combing assembly in one embodiment.

[0027] Figure 4 This is a schematic diagram of the right-side structure of the comb component in one embodiment.

[0028] Figure 5 This is a schematic diagram of the right-side structure of the comb component in another embodiment.

[0029] Figure 6 This is a schematic diagram of the main structure of the comb component in one embodiment.

[0030] Figure 7 This is a schematic diagram of the right-side structure of the carding adjustment component in one embodiment.

[0031] Figure 8 This is a schematic diagram of the right-side structure of the cotton feeding adjustment component in another embodiment.

[0032] Figure 9 for Figure 1 The magnification ratio in Part II refers to the magnification ratio relative to the original image.

[0033] Figure 10 This is a schematic diagram of the right-side structure of the windbreak component in one embodiment.

[0034] Figure 11 This is a schematic diagram of the right-side structure of the wind-blocking component in another embodiment.

[0035] Figure 12 This is a schematic diagram of the right-side structure of the sealing assembly in one embodiment.

[0036] Figure 13 This is a schematic diagram of the right-side structure of the sealing assembly in another embodiment.

[0037] Figure 14 This is a schematic diagram of the right view of the middle cover plate assembly in one embodiment.

[0038] Figure 15 This is a schematic diagram of the right side view of the cover plate assembly in another embodiment.

[0039] 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 plate, 6. Air baffle assembly, 7. First row of impurity knives, 8. Front cover plate, 9. Upper licker-in roller, 10. Front inspection port, 11. Cotton pressing roller, 12. Cotton stripping roller, 13. 14. Upper licker-in roller cover assembly; 15. Carding component; 16. Carding adjustment assembly; 17. Wall panel; 18. Lower licker-in roller; 19. Second row of waste knife assembly; 20. Rear inspection port; 21. Rear cover plate; 22. Lower cover assembly; 23. First row of waste plate assembly; 24. Second waste channel; 25. Second row of waste plate assembly; 26. Lower housing; 27. Stripping section; 28. Pressing surface gap; 29. ​​Adjusting gap; 30. Upper connecting plate; 31. Lower connecting plate; 32. First pressure plate; 33. Assembly hole; 34. Carding gap; 35. First curved surface; 36. First end plate; 37. Weight reduction hole; 38. First fixing hole; 39. Second curved surface. 39. First elongated hole; 40. Panel; 41. Combing plate; 42. Sealing plate; 43. First reinforcing plate; 44. Second pressure plate; 45. First flange; 46. First sealing rubber; 47. Middle cover plate assembly; 48. Middle sealing assembly; 49. Second flange; 50. Third pressure plate; 51. Second sealing rubber; 52. Second end plate; 54. Wind baffle plate; 55. Second fixing hole; 56. First adjusting hole; 57. Third end plate; 58. Third fixing hole; 59. Middle sealing plate; 60. Second adjusting hole; 61. Fourth end plate; 62. Fourth fixing hole; 63. Middle cover plate; 64. Second reinforcing plate; 65. Third adjusting hole.

[0040] L1. First gap, L2. Second gap, L3. Third gap, L4. Fourth gap, L5. Fifth gap, L6. Sixth gap, L7. Seventh gap. Detailed Implementation

[0041] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of this utility model mainly include two parts: one is a central airflow regulating component for adjusting the gap between the upper cover plate 3 and the licker-in roller in the cotton outlet channel; the other is a carding component 14 applicable to a double-licker-in roller cotton cleaning machine, used for transferring cotton from the upper licker-in roller 9 to the lower licker-in roller 17. Other parts of the cotton cleaning machine are not involved. Therefore, including the accompanying drawings, the description mainly focuses on the part involving the transfer of cotton from the upper licker-in roller 9 to the lower licker-in roller 17. This part is mainly located within the lower casing 25 of the cotton cleaning machine, which has a box-like structure. For other parts of the cotton cleaning machine, existing technologies can be used.

[0042] It should also be noted that the central airflow regulating component based on this utility model embodiment is a technical achievement resulting from the improvement process of the double-licker-in cotton cleaning machine. However, verification has shown that this central airflow regulating component is also applicable to the single-licker-in cotton cleaning machine. Relatively speaking, its location in the single-licker-in cotton cleaning machine is also between the cover plate 3 on the cotton outlet channel and the corresponding licker-in roller. Furthermore, a similar technical condition to the double-licker-in cotton cleaning machine is that a triangular area also exists on the upper side of the cover plate 3 on the cotton outlet channel, see [link to relevant documentation]. Figure 1 The state shown is called the front triangle area, while the aforementioned combing component 14 is located in another triangle area, namely the rear triangle area.

[0043] Therefore, in order to provide a general overview, we will first describe the combing component 14, which will be more helpful in explaining the central airflow regulating component.

[0044] 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.

[0045] In the front-back direction and above, the components used to enclose the cavity of the combined wall panel 16 are usually not load-bearing and are generally made of sheet metal, and are usually referred to as cover panels.

[0046] 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.

[0047] In the embodiments of this utility model, there are defined up and down, but it should be understood that in the mechanical field, up and down does not specifically refer to exactly up or down, but usually indicates a height difference. Furthermore, in the embodiments of this utility model, up, down, as well as other terms such as left, right, inside, outside, front, back, etc., and similar expressions are for illustrative and explanatory purposes, and are limited to not causing misunderstanding to those skilled in the art.

[0048] Similarly, statements that are mutually explanatory, such as vertical or horizontal, are also for the purpose of explanation or clarification.

[0049] In addition, 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 this 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] To clearly understand the principle and specific implementation of the cotton combing structure in the embodiments of this utility model, the following will first explain the parts related to the cotton combing structure in the cotton cleaning machine, so as to understand the cotton combing structure as a whole.

[0054] First, the cotton combing structure based on the present invention is suitable for a cotton cleaning machine with double licker rollers, which has an upper licker roller 9 and a lower licker roller 17 in terms of position. The main consideration in the embodiment of the present invention is how to transfer the cotton from the upper licker roller 9 to the lower licker roller 17.

[0055] from Figure 1As can be seen, the cooperation between the upper licker-in roller 9 and the lower licker-in roller 17 will inevitably create two triangular areas. One triangular area is used for the installation of the carding component 14 and the carding adjustment component 15, which is the rear triangular area. The other triangular area is used for the installation of the middle airflow adjustment component, which is the front triangular area.

[0056] The determination of the two triangular zones also lies in the predetermined distance between the upper licker-in roller 9 and the lower licker-in roller 17, forming two triangular zones on both sides of the connecting surface of the two rollers. One of these triangular zones is used to set up the cotton combing structure. This triangular zone is obviously located on the side of the upper licker-in roller 9 away from the first row of impurity knives 7, meaning that the cotton needs to be peeled off from the upper licker-in roller 9 after impurity removal. For ease of explanation, the triangular zone with the cotton combing structure can also be called the first triangular zone, and the other triangular zone can be called the second triangular zone.

[0057] Since cotton is mainly discharged through suction in the cotton discharge channel 2, meaning there is negative pressure inside the cotton discharge channel 2, and centrifugal force is also needed, for example, when the lower licker roller 17 rotates, to make the cotton lint detach from the lower licker roller 17, the inlet of the cotton discharge channel 2 should obviously not be too large, otherwise the suction will be relatively dispersed. Therefore, for the front triangular area, it is difficult to form a good shielding effect by simply relying on the natural extension of the cover plate 3 on the cotton discharge channel. Therefore, in the embodiment of this utility model, a wind-blocking component 6 and a middle sealing component 48 are also provided.

[0058] For a cotton cleaning machine with a single licker-in roller, its structural configuration is equivalent to omitting the lower licker-in roller 17 and setting the cotton outlet channel 2 on the opposite side of the first row of miscellaneous knife group 7. At this time, it is difficult to achieve a good shielding effect by relying solely on the natural extension of the cotton outlet channel 3.

[0059] Upper licker roller 9 and lower licker roller 17 in Figure 1 In the illustrated structure, all are installed inside the lower casing 25, while the upper casing of the cotton cleaning machine is generally equipped with a cotton inlet pipe and a dust cage assembly.

[0060] The dust cage assembly includes a dust cage, which is mounted on the upper wall panel via a bearing assembly. One or both ends of the dust cage are connected to an air extraction port, which generates cotton conveying power through the cotton inlet pipe by air extraction, and causes the cotton entering the cotton cleaning machine through the cotton inlet pipe to be adsorbed onto the dust cage mesh surface, which is similar to cotton suction.

[0061] After the cotton lint enters the upper casing, it is adsorbed onto the mesh surface of the dust cage. Some light impurities are discharged through the exhaust fan of the dust cage assembly. The dust cage mesh surface is generally a cylindrical perforated plate with a smooth surface, suitable for being peeled off by the peeling roller 12. The peeled cotton lint is conveyed downwards under the clamping of the peeling roller 12 and the pressing roller 11. Therefore, it can be seen that... Figure 1In the illustrated state, the upper licker roller 9 rotates counterclockwise. The shed cotton is pressed by the pressing roller 11 and captured by the upper licker roller 9, and rotates with the upper licker roller 9.

[0062] When the cotton loses the radial restraint of the other components except for the upper licker roller 9, the cotton layer on the upper licker roller 9 tends to become radially fluffy under the action of centrifugal force, causing the relatively heavy impurities to move towards the centrifugal side of the cotton layer. In addition to the impurities that fly out directly due to the centrifugal force, some impurities are pulled by the cotton fibers and are in a state of following flight.

[0063] A set of first row miscellaneous blades is provided accordingly, forming in Figure 1 The first row of debris cutters distributed on the left-hand arc segment is designated as the first row of debris cutter group 7. When the cotton fibers pulling the debris are blocked by the first row of debris cutters, the speed of the debris changes drastically, causing the debris to detach from the cotton fibers and be removed, and then... Figure 1 The getter assembly 4 shown is discharged.

[0064] from Figure 1 As can be seen, except for a small area, the outer periphery of the upper licker roller 9 is also provided with, for example, an upper licker roller cover assembly 13 and a middle cover assembly 47, in order to prevent the cotton on the upper licker roller 9 from flying out directly under the action of centrifugal force as much as possible.

[0065] The axial direction of the upper barbed roller 9 and the axial direction of the lower barbed roller 17 are both transverse and parallel to each other. The distance between the upper barbed roller 9 and the lower barbed roller 17 refers to the distance between the top circles of the two barbed rollers. The top circle of the barbed roller refers to the cylindrical surface on which the top of the barbed nail or needle is located with the corresponding barbed roller as the axis.

[0066] On most licker-in rollers, the spikes or needles extend radially. In a few implementations, the spikes or needles form a predetermined angle with the radial line of their installation position. This indicates that the licker-in roller primarily captures lint using friction, such as the friction generated by the spikes inserting into the cotton layer. This friction is positively correlated with the positive pressure exerted on the cotton fibers during the roller's rotation. However, as mentioned earlier, the cotton fibers are pressed between the spikes by, for example, the pressing roller 11, making it difficult to peel the lint off the upper licker-in roller 9 using, for example, the stripping roller 12.

[0067] exist Figure 1 In the state shown, the lower licker roller 17 rotates clockwise, and the cotton lint peeled off from the upper licker roller 9 falls onto the lower licker roller 17 and rotates clockwise along with the lower licker roller 17.

[0068] The distance between the upper barbed roller 9 and the lower barbed roller 17 is 0.4~0.9mm, preferably 0.5~0.8mm. This distance can be as small as possible while ensuring that the barbs or needles on the two barbed rollers do not interfere with each other. In other words, the above distance is a design value to reduce the influence of manufacturing and assembly errors. The smaller value of the distance is taken while satisfying the requirements of manufacturing and assembly errors.

[0069] Furthermore, in some embodiments, the spikes or needles on the lower spike roller 13 are staggered from those on the lower spike roller 17 in the lateral direction. Under this condition, it is easier to ensure that the distance between the upper spike roller 9 and the lower spike roller 17 is relatively smaller, or the top circles of the two spike rollers are directly made to intersect, which only requires that the plates of the two spike rollers avoid each other.

[0070] It should be noted that although the embodiments of this utility model focus on describing the cotton combing structure, when the distance between the upper licker-in roller 9 and the lower licker-in roller 17 is small, due to the difference in rotational speed between, for example, the top circle of the clockwise rotating lower licker-in roller 17 and the top circle of the counterclockwise rotating upper licker-in roller 9, and when the top circle of the lower licker-in roller 17 has a higher linear speed, this rotational speed difference can cause some cotton to be directly transferred to the lower licker-in roller 17, especially when the top circles of the two rollers intersect. Therefore, the cotton combing structure based on the embodiments of this utility model can be used to peel off a portion of the cotton from the upper licker-in roller 9, but not all of it.

[0071] Furthermore, as is common sense, even with the aforementioned speed difference method and cotton combing structure, it is impossible to ensure that all cotton that has passed through the cotton combing structure or other structures used to transfer cotton from the upper licker-in roller 9 to the lower licker-in roller 17 is completely transferred to the lower licker-in roller 17. A small amount of cotton may still remain on the upper licker-in roller 9.

[0072] The core of the cotton combing structure is a combing component 14, which is located in... Figure 4 and Figure 5 The illustrated structure is primarily a rectangular beam structure with two curved sides. These two curved surfaces intersect to form the stripping section. One curved surface faces the upper licker-in roller 9, and the other faces the lower licker-in roller 17. Since the surface facing the upper licker-in roller 9 is not necessarily used for carding the lint, it can be a panel of other shapes, as long as it provides some degree of shielding around the predetermined circumference of the upper licker-in roller 9. Relatively speaking, using a curved surface makes it easier to construct a relatively tight shield. Therefore, the remaining parts of the carding member 14, excluding the portion with the two curved surfaces, mainly provide the rigidity to maintain the shape of the carding member 14. Thus, the rectangular beam structure is only one option.

[0073] For ease of description, the curved surface on the side of the comb facing the lower licker roller 17 is referred to as the second curved surface 38, and the curved surface on the side facing the upper licker roller 9 is referred to as the first curved surface 34. Since the first curved surface 34 can be other types of surfaces, it is collectively referred to as the first surface.

[0074] Accordingly, the first surface and the second curved surface 38 intersect at the apex of the first triangular area to define the cotton-peeling section 26. Obviously, the intersection of surfaces will form a fold angle, such as... Figures 3-5 The relatively blunt tip shown is due to Figures 3-5 All are right views. The cotton stripping section 26 is actually a ridge-like structure, which is generally shaped like a shovel and is used to peel the lint off the upper licker roller 9.

[0075] Accordingly, the first gap L1 between the cotton stripping section 26 and the upper licker-in roller 9 is no greater than 4.5mm, otherwise the cotton lint cannot be scraped off the upper licker-in roller 9. At the same time, the second gap L2 between the cotton stripping section 26 and the lower licker-in roller 17 is 12~20mm, and the gap between the second curved section 38 and the lower licker-in roller 17 is required to gradually decrease from the cotton stripping section 26 as the starting point, so as to gradually press the cotton lint stripped from the upper licker-in roller 9 onto the lower licker-in roller 17.

[0076] The second curved surface 38 is a continuous and guideable curved surface. As the cotton lint rotates circumferentially with the lower licker-in roller 17 or is thrown due to inertia, it undergoes centripetal motion under the action of the second curved surface 38, and is gradually guided onto the lower licker-in roller 17, thus completing the transfer of the cotton lint from the upper licker-in roller 9 to the lower licker-in roller 17.

[0077] exist Figure 2 In the illustrated structure, the first surface is a first curved surface 34. As mentioned above, the curved surface 34 is mainly used to ensure that the first surface has a good shielding effect on the upper spit roller 9 so as to be smoothly connected with, for example, the upper spit roller cover assembly 13 located on the rear side of the upper spit roller 9, thereby providing a good shielding effect for the upper spit roller 9 as a whole. That is, the first curved surface 34 has the function of a cover.

[0078] Meanwhile, the first curved panel 34 has a certain amount of extension in the circumferential direction corresponding to the upper tack roller 9, so that the overall rigidity of the combing part 14 is relatively good.

[0079] For the cover plate, since the top circle of the upper piercing roller 9 is a cylindrical surface, the cover plate mainly covers the upper piercing roller 9 by wrapping around it. Therefore, its individual size can be determined by the concept of the wrap angle, which is represented in... Figure 1 In the illustrated right view, this wrap angle corresponds to the central angle of the upper licker roller end face. The same applies to the second curved section 38. The wrap angle of the first curved section 34 to the upper licker roller 9 is approximately 34°, and should not be less than 15°, otherwise the transition of the gap between the first curved section 34 and the upper licker roller 9 will be too abrupt.

[0080] See also Figure 1 and Figure 2 The gap between the first curved section 34 and the upper licker-in roller 9, starting from the cotton-peeling section 26, is either a fixed value or gradually increases, with gradual increase being preferred. If a gradual increase is adopted, the maximum increase is no more than 1.8 times the second gap. Correspondingly, Figure 2 The third gap L2 shown is no more than 2.8 times the first gap L1, that is, the maximum increment is 1.8 times the first gap L1. The third gap L2 is the gap between the end of the first curved surface 34 starting from the cotton stripping part 26 and the upper licker-in roller 9.

[0081] Regarding the gradual increase, a linear increase is preferred, and the slope of the linear increase is not greater than 0.035.

[0082] Regarding the first gap, it can be as small as possible while ensuring that no motion interference occurs. Although the design value can be very small, considering manufacturing and assembly errors, as well as factors such as loosening of spikes, the first gap should not be too small, preferably not less than 1.5 mm, and should not be too large, for example not more than 4.5 mm, and in a more preferred embodiment not more than 3.5 mm.

[0083] Taking into account both manufacturing and assembly errors, the first gap is 3mm.

[0084] Based on essentially the same considerations, the minimum gap between the second curved section 38 and the lower licker-in roller 17 is 1.5~4.5mm. Clearly, as described above, the gap between the second curved section 38 and the lower licker-in roller 17 gradually decreases from the cotton stripping section 26 onwards. In other words, the minimum gap is... Figure 2 The fourth gap L4 shown is located at the end of the second curved surface 38, starting from the cotton stripping section 26.

[0085] Also taking into account manufacturing and assembly errors, and considering that the diameter of the lower burr roller 17 is relatively large, the minimum value of the fourth gap L4 is greater than 1.5mm, so it is taken as 1.8mm, and the maximum value is taken as 2.4mm. The preferred value of the fourth gap L4 is 2mm.

[0086] In order to gently press the cotton down the licker roller 17, the wrap angle of the licker roller 17 corresponding to the second curved surface 38 is 30°~42°, preferably 36°.

[0087] The main body of the combing component 14 is made of sheet metal. A rectangular plate is bent at the designated position of the cotton stripping section 26, forming the cotton stripping section 26 at the bend. A first panel with a first curved surface 34 and a second panel with a second curved surface 38 are formed with the cotton stripping section 26 as the boundary. The first curved surface 34 and the second curved surface 38 are the working parts. The side of the corresponding panel opposite to the working part is the back side. Several support plates can be set on the back side. The support plates are shaped like the back side of the two panels and are welded to the triangular space formed by the two panels by means of welding, for example, so that the two panels are interconnected as a whole on the back side.

[0088] The support plate is supported between the two panels and can extend further rearward to increase overall rigidity, for example, forming a shape like... Figures 3-5 The rectangular main body shown is represented by the structure of the first end plate 35.

[0089] One of the support plates at each end can serve as a mounting plate for fixing the combing component 14 to the corresponding wall panel 16.

[0090] Accordingly, the mounting plate is in Figures 3-5 The first end plate 35 is formed in the middle. The first end plate 35 has four mounting holes 32 in the figure. These mounting holes 32 are screw holes, which can be fixed to the wall panel 16 by screw connection.

[0091] In some embodiments, the sheet metal part having the first curved surface 34 and the second curved surface 38 may also have a crossbeam as the mounting base, and the sheet metal part is fixed on the crossbeam as a cover plate or panel, with the two ends of the crossbeam correspondingly fixed on the wall panel 16.

[0092] exist Figures 3-5 In the illustrated structure, in order to obtain relatively large rigidity, the sheet metal part can be entirely wrapped around the crossbeam, and the crossbeam can be a rectangular beam.

[0093] The cotton stripping part 26 should not be too sharp, otherwise it will be easily damaged and the cotton fibers will be easily damaged. Therefore, the cotton stripping part 26 is preferably a cylindrical part, the axis of which corresponds to the transverse direction of the cotton cleaning machine, and the bottom radius of the cylindrical part is 0.3~0.8mm.

[0094] As mentioned earlier, existing components for transferring lint from the upper licker-in roller 9 to the lower licker-in roller 17 typically include rotating parts, which have the advantage of being able to be adaptively adjusted according to working conditions through speed regulation. However, in the embodiment of this utility model, the combing component 14 is a component fixedly mounted on the wall panel 16, and its adjustability is minimized to ensure the relative stability of the values ​​of the second and fourth gaps as much as possible.

[0095] Furthermore, a carding adjustment assembly 15 is provided, which is installed at the end of the carding member 14 in a direction extending from the second curved section 38 starting from the stripping section 26 to continue the second curved section. Under this condition, the reliability of the carding member 14 can be ensured, and then the carding adjustment assembly 15 can be adjusted.

[0096] Regarding the adjustment method of the cotton feeding adjustment component 15, it can be adjusted by means of a mechanism. The adjustment direction is radial adjustment of the lower licker-in roller 17, which is a linear adjustment. Linear adjustment is the most common and easiest adjustment method to implement in the mechanical field.

[0097] If a linear drive mechanism is used to adjust the carding adjustment assembly 15, the corresponding linear drive mechanism should have a self-locking capability. Even if a hydraulic cylinder is used for adjustment, the hydraulic circuit of the hydraulic cylinder needs to be equipped with a hydraulic lock.

[0098] If an adjustment is made using a lead screw mechanism, for example, the lead screw of the lead screw mechanism needs to have a self-locking thread. In fact, except for a very few special applications, most lead screw and lead screw pairs have self-locking capabilities.

[0099] Another linear adjustment method is to use the first elongated hole 39 for adjustment. The extension direction of the first elongated hole 39 is obviously the radial direction of the lower licker roller 17.

[0100] The first elongated hole 39 can be provided on the carding member 14 or on the carding adjustment assembly 15, and the two are then connected by bolts. Figure 3 and Figure 4 The first fixing hole 37 shown is a threaded hole, while Figure 5 In the illustrated structure, the first elongated hole 39 is replaced. When the combing component 14 is provided with the corresponding first fixing hole 37, the combing adjustment component 15 is provided with the corresponding elongated hole. Otherwise, the elongated hole is provided on the combing component 14.

[0101] The gap between the surface of the carding adjustment assembly housing and the carding roller 17 can be equal, and the wrap angle of the carding adjustment assembly to the carding roller 17 is 3°~6°. The carding component 14 mainly functions to card the cotton lint, while the carding adjustment assembly 15 is used to assist in carding, and its individual size should not be too large.

[0102] The following describes the central airflow adjustment component. The core of this central airflow adjustment component is component 6, and the auxiliary component is the central sealing component 48. The central airflow adjustment component is used to adjust the gap between the upper cover plate 3 of the cotton outlet channel and the licker-in roller in the cotton cleaning machine. Taking the double licker-in roller cotton cleaning machine as an example, the gap between the upper cover plate 3 of the cotton outlet channel and the licker-in roller in this example is the gap with the lower licker-in roller 17. This gap is used for simplification. Based on the embodiments of this utility model, it can be seen that there is a given distance between the upper cover plate 3 of the cotton outlet channel and the licker-in roller. The central airflow adjustment component is provided in this space. Essentially, the gap between the upper cover plate 3 of the cotton outlet channel and the lower licker-in roller 17 is adjusted by the central airflow adjustment component.

[0103] Correspondingly, the two ends of the wind-blocking component 6 are installed on the wall panel 16 of the cotton cleaning machine through a longitudinal adjustment structure or mechanism. Based on the aforementioned principle, it can be known that the wind-blocking component 6 is located between the upper cover plate 3 of the cotton outlet channel and the lower licker roller 17 in the front-back direction. Obviously, the wind-blocking component 6 cannot interfere with the movement of the lower licker roller 17. Therefore, there is a sixth gap L6 between the wind-blocking component 6 and the lower licker roller 17. At the same time, the wind-blocking component 6 and the upper cover plate 3 of the cotton outlet channel form a first sealing structure through flexible connection or engagement.

[0104] and then, Figure 9 for Figure 1 A magnified view of a section, from Figure 9 As can be seen, if the cover plate 3 of the cotton outlet channel extends directly to the cover plate assembly 47, the inlet of the cotton outlet channel 2 will be flared, which will reduce the suction pressure and affect the detachment of cotton from, for example, the lower licker-in roller 17, resulting in more cotton fibers remaining on the lower licker-in roller 17. In the embodiments of this utility model, an air-blocking assembly 6 is used, and in a further embodiment, it is used in conjunction with a sealing assembly 48 to construct a sealing structure on the section of the cover plate 3 of the cotton outlet channel facing the lower licker-in roller 17. At the same time, the air-blocking assembly 6 has longitudinal adjustment capability, so that the sixth gap L6 between the air-blocking assembly 6 and the lower licker-in roller 17 is adjustable, thus having better adaptability to cotton quality.

[0105] See Figure 10 and Figure 11 The wind-blocking component 6 is a rectangular tube structure. The tube body of the rectangular tube structure forms the wind-blocking plate 53. Obviously, the wind-blocking plate 53 has four panels. If two of them are horizontal panels, then when the wind-blocking plate 53 is set horizontally, the other two panels must be vertical panels.

[0106] The windbreak plate 53 is arranged horizontally, with both ends mounted on the wall panel 16. The two ends of the rectangular tube structure have second end plates for connecting with the wall panel.

[0107] Regarding the adjustment method of the wind-blocking component 6, please refer to the aforementioned method of installing and adjusting the carding adjustment component 15 on the carding part 14, except that the adjustment of the component 6 is a longitudinal adjustment, that is, an adjustment in the front-to-back direction.

[0108] The adjustment method of the wind-blocking component 6 is briefly described below. In some embodiments, structural adjustment is adopted, that is, the two ends of the wind-blocking component 6 are installed on the corresponding wall panels through adjustment structures. Accordingly, the second end plate 52 or the wall panel 16 has a first adjustment hole 55 on one side and a second fixing hole 54 on the other side at the corresponding position. Bolts are then inserted into the first adjustment hole 55 and the second fixing hole 54. The longitudinal position of the wind-blocking component 6 in the lower cotton box can be changed by adjusting the position of the bolts within the adjustment range of the first adjustment hole 55, thereby adjusting the sixth gap L6, so as to adapt to cotton of different qualities and current conditions (e.g., moisture regain).

[0109] Accordingly, the first adjustment hole 55 is a longitudinally extending elongated hole.

[0110] In some embodiments, for example, the two ends of the wind-blocking component 6 are mounted on the wall panel 16 via a slide rail pair. In this case, the extension direction of the slide rail pair is longitudinal, and the slide rail pair can be fitted with a set screw. For example, the wind-blocking component 6 is provided with a slide plate, and the slide plate has a set screw hole in the direction facing the slide rail. After adjustment, the set screw can be used to tighten the screw.

[0111] In some embodiments, the wind-blocking component 6 can be mounted on a linear drive mechanism, while its two ends are mounted on the wall panel 16 using linear guide components. The linear drive mechanism can be mounted on... Figure 1 The space between the middle slide 5 and the lower cover plate 3 of the cotton outlet channel is, for example, a screw mechanism or other linear drive mechanism.

[0112] Regarding the sealing between the wind-blocking component 6 and the upper cover plate 3 of the cotton outlet channel, one approach is to directly connect the rubber sheet to the upper cover plate 3 of the cotton outlet channel. When the two are relatively displaced, the rubber sheet can adaptively stretch or loosen to form a reliable seal.

[0113] exist Figure 9 In the illustrated structure, rubber, for example, possesses a certain degree of rigidity, albeit not significant, so that it will not collapse noticeably under gravity. Therefore, the way the joint forms the first sealing structure is as follows: A horizontally extending elastic sealing sheet is provided at the end of the upper cover plate 3 facing the downward-facing licker-in roller 17 in the cotton outlet channel, such as... Figure 9 The first sealing rubber shown has a horizontally extending portion that is lower than the upper panel of the air baffle assembly 6, causing the elastic sealing rubber to abut against the vertical panel of the air baffle assembly facing the cotton outlet channel cover 3 and flip upwards, thus presenting the shape shown. Figure 9The structure is roughly L-shaped, so even if it rewinds, it does not affect the formation of a seal. Because of the upward-turning part, when the wind-blocking assembly 6 moves to the right, the upward-turning part will compensate for the horizontal part, thus maintaining the seal. If it moves to the left, the horizontal part will compensate for the upward-turning part. Since the horizontal part is used for sealing, the upward-turning part is mainly used for adaptation after the wind-blocking assembly 6 is adjusted back and forth. Therefore, the upward-turning part is called the sealing margin part.

[0114] For the upper licker-in roller 9, a middle cover assembly 47 can be configured in the front triangular area to shield the lower side of the upper licker-in roller 9, but it is insufficient to cover the portion of the lower licker-in roller 17 located in the front triangular area. It is necessary to prevent cotton fibers remaining on the lower licker-in roller 17 from entering the front triangular area. Furthermore, the central airflow regulating assembly correspondingly includes a central sealing assembly 48 to adapt to the distance between the wind-blocking assembly 6 and the upper licker-in roller 9. That is, the central sealing assembly 48 is an auxiliary configuration. When, for example, the middle cover assembly 47 is insufficient to form a good seal, and cotton fibers remaining on the lower licker-in roller 17 may enter the front triangular area, the central sealing assembly 48 needs to be configured between the middle cover assembly 47 and the wind-blocking assembly 6 to shield the side of the lower licker-in roller 17 located in the front triangular area.

[0115] Correspondingly, the middle sealing assembly 47 has a seventh gap L7 between itself and the corresponding lower burr roller 17, and is sealed with the air-blocking assembly 6 in a joint manner.

[0116] The joint seal between the central sealing component 47 and the wind choke component 6 is mainly used to avoid motion interference. That is, when the wind choke component 6 needs to be adjusted separately, for example, the joint seal will not hinder the adjustment of the wind choke component 6.

[0117] exist Figure 9 In the illustrated structure, the joint seal is achieved using a second sealing rubber 51, which is similar to the first sealing rubber 46 and will not be described further.

[0118] The sealing between the middle sealing assembly 48 and the middle cover plate assembly 47 is also a joint seal, which can be a simple fit between them. For example, the upper surface of the middle sealing assembly 48 is fitted with the lower surface of the middle cover plate assembly 47 without connection, and the seal is achieved by surface-to-surface fitting.

[0119] Since the middle cover assembly 47 is similar to other cover assemblies arranged around the licker roller, and is used to construct a shielding space to prevent cotton from flying out from the side where the cover is set, this is common knowledge in the field and will not be described in detail here.

[0120] For the central sealing component 48, in a preferred embodiment, the connection between it and the corresponding wall panel 16 has a longitudinal adjustment structure or mechanism, the adjustment method of which is similar to that of the wind-blocking component 6, and will not be described in detail here.

[0121] The above description is illustrative in conjunction with the accompanying drawings and is not intended to limit the scope of this utility model. Within the concept of this utility model, the above embodiments or different embodiments can be combined without conflict. Although the utility model 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 utility model.

Claims

1. A central airflow regulating component, characterized in that, The central airflow regulating component is used for adjusting the gap between the cover plate and the licker-in roller in the cotton outlet channel of a cotton cleaning machine. The wind-blocking component is installed on the wall panel of the cotton cleaning machine at both ends through a longitudinal adjustment structure or mechanism, and is located between the upper cover plate of the cotton outlet channel and the licker-in roller. The wind-blocking component and the licker-in roller have a sixth gap, and the wind-blocking component and the upper cover plate of the cotton outlet channel are flexibly connected or joined to form a first sealing structure.

2. The central airflow regulating assembly according to claim 1, characterized in that, The wind-blocking component is a rectangular tube structure, and the two panels of the rectangular tube structure are horizontal panels. The rectangular tube structure has a second end plate at both ends for connection with the wall panel.

3. The central airflow regulating component according to claim 2, characterized in that, The second end plate or wall panel has a first adjustment hole at one corresponding position and a second fixing hole at the other. Accordingly, the first adjustment hole is a longitudinally extending elongated hole.

4. The central airflow regulating assembly according to claim 2, characterized in that, The method by which the joining forms the first sealing structure is as follows: A horizontally extending elastic sealing sheet is provided at the end of the cover plate facing the licker-in roller in the cotton outlet channel. The horizontally extending portion of the elastic sealing sheet is lower than the upper panel of the air baffle assembly, so that the elastic sealing sheet abuts against the vertical panel of the air baffle assembly facing the cover plate in the cotton outlet channel and flips up to form a sealing allowance portion.

5. The central airflow regulating assembly according to claim 1, characterized in that, It is applicable to a double-pinning roller cotton cleaning machine, and the central airflow regulating component includes a sealing component to adapt to the distance between the wind-blocking component and the upper pinning roller. The middle sealing component has a seventh gap with the corresponding lower punch roller, and is connected to the air-blocking component with a joint seal.

6. The central airflow regulating assembly according to claim 5, characterized in that, The connection between the central sealing component and the corresponding wall panel has a longitudinal adjustment structure or mechanism.

7. A cotton cleaning machine, characterized in that, Includes the central airflow regulating component as described in any one of claims 1 to 6.

8. The cotton cleaning machine according to claim 7, characterized in that, The invention includes a cotton combing structure for transferring cotton from an upper licker-in roller to a lower licker-in roller in a cotton cleaning machine. The cotton combing structure includes a combing member located in a triangular area defined by the cooperation of the upper and lower licker-in rollers. The combing member has a second curved surface on the side facing the lower licker-in roller and a first surface on the side facing the upper licker-in roller. The first surface and the second curved surface intersect at the apex of the triangular area to define a cotton stripping section. The first gap between the cotton stripping section and the upper licker-in roller is no more than 4.5 mm, and the second gap between the cotton stripping section and the lower licker-in roller is 12~20 mm. The gap between the second curved section and the lower licker-in roller gradually decreases from the cotton stripping section as the starting point, so as to press the lint stripped from the upper licker-in roller onto the lower licker-in roller.

9. The cotton cleaning machine according to claim 8, characterized in that, The first surface is the first curved surface.

10. The cotton cleaning machine according to claim 9, characterized in that, The gap between the first curved section and the upper licker-in roller is a fixed value or gradually increases from the cotton stripping section as the starting point, with the maximum increase not exceeding 1.8 times the second gap.

11. The cotton cleaning machine according to any one of claims 8 to 10, characterized in that, The first gap is no greater than 3.5mm.

12. The cotton cleaning machine according to claim 8, characterized in that, The wrap angle of the lower squeegee corresponding to the second curved surface is 30°~42°.

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