Lint carding structure and lint cleaner

Abstract

The utility model discloses a kind of lint combing structure and lint cleaning machine, wherein the combing piece of lint combing structure is located in the triangle area determined by upper cylinder and lower cylinder cooperation, and the side of combing piece facing lower cylinder has second curved surface part, and the side facing upper cylinder has first face, first face and second curved surface part intersect at the vertex of the triangle area to determine stripping part;The first gap between the stripping part and upper cylinder is not more than 4.5mm, the second gap between the stripping part and lower cylinder is 12~20mm, and the gap between the second curved surface part and lower cylinder gradually reduces with stripping part as starting point, to press the lint peeled from upper cylinder on lower cylinder. According to the lint combing structure of the utility model, the transfer effect of lint between two cylinders is relatively good and the structure is relatively compact.

Description

Technical Field

[0001] This utility model relates to a cotton combing structure in a double-pinning roller cotton cleaning machine for transferring cotton from one pinning roller to another and combing the cotton. This utility model also relates to a cotton cleaning machine equipped with the cotton combing structure. 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] Correspondingly, due to the characteristics of machine-picked cotton, the lint obtained after ginning often contains impurities such as cotton leaves, broken cotton stalks, and dead fibers that exceed the predetermined impurity content requirements. To ensure the quality of the lint, these impurities need to be removed using a lint cleaner. 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.

[0004] Currently, commercially available cotton processing production lines are equipped with either one sawtooth cotton cleaning machine or two sawtooth cotton cleaning machines, the latter often referred to as double cleaning. Double cleaning means that the cotton lint first undergoes one cleaning process before entering the second. Essentially, two cleaning machines are set up sequentially on the cotton processing production line. This means that the two cleaning processes do not double the cleaning rate; it remains the same as the single cleaning process. The difference is that the second cleaning process has a relatively higher impurity removal rate.

[0005] Existing cotton processing production lines typically have two sawtooth cotton cleaning machines set up back to back, connected by a cotton conveying pipe system equipped with a four-way valve. Because two cleaning machines are required, the production line occupies more space and the installation process is more complicated. Therefore, lint cleaners capable of performing two cleaning processes on a single lint cleaner have emerged. A typical example is Chinese patent document CN203144583U, which discloses a double-roller lint cleaner. This machine includes an upper licker-in roller and a set of upper scrap knives cooperating with it, and a lower licker-in roller located below the upper licker-in roller and offset forward, along with a set of lower scrap knives cooperating with it. A lower pressing roller is also provided to transfer the lint from the upper licker-in roller to the lower licker-in roller. While this patent document does not describe how the lower pressing roller is used to transfer the lint to the lower licker-in roller, currently, the commonly used components for peeling lint from the licker-in roller are mainly brush rollers (nylon brush rollers or wire brush rollers). Relying solely on brush rollers to remove lint results in relatively scattered lint, suitable for unloading but difficult to make the lint adhere to the lower licker-in roller. The pressing roller essentially includes the function of a brush roller, and simultaneously presses the lint off the upper licker-in roller onto the lower licker-in roller. Even with this structure, the overall structure is relatively complex, and a suitable fit is required between the brush roller and the pressing cotton roller.

[0006] Chinese patent document CN204058696U discloses a double-pinching roller cotton cleaning machine, which includes a first pinching roller and a second pinching roller arranged side by side in an upper and lower position, and both pinching rollers are provided with impurity removal blades on their sides. Due to the different linear speeds of the first and second pinching rollers, and the intersection of their top circles, the needle cloths on the two pinching rollers are arranged sequentially along the axial direction of the rollers, thus forming a cross pattern. When there is a difference in linear speed between the two pinching rollers, the pinching roller with a relatively faster linear speed can peel the cotton lint off the pinching roller with a relatively slower linear speed and onto itself. This method uses the difference in linear velocity to transfer cotton from the first licker-in roller to the second licker-in roller. Since the cotton assists the licker-in roller and needs to rotate with it, and the licker-in roller rotates at a very high speed (e.g., the speed of the licker-in roller used in the national standard basic model is 800~1200 r / min), the cotton transferred to the second licker-in roller by the above-mentioned method of transferring cotton by rotation speed is relatively loose. It should be noted that cotton cleaning machines usually require the cotton to have a certain adhesion to the licker-in roller so that it can still reliably adhere to the licker-in roller under the action of centrifugal force. With the help of centrifugal force, relatively heavy impurities are located on the centrifugal side of the cotton layer, and then the impurities located on the periphery are removed by the impurity removal knife. If the adhesion between the cotton and the licker-in roller is weak, some cotton fibers will shift too much to the centrifugal side, which can easily lead to the phenomenon of white cotton discharge, that is, the cotton fiber content in the separated impurities is too high.

[0007] Chinese patent document CN222499503U discloses a graded double-roller cotton cleaning machine. In this patent document, the components used for transferring cotton between two licker-in rollers are a pair of lower rollers. It should be noted that the rollers require a drive mechanism and speed adaptation, resulting in a complex overall structure and high overall energy consumption. Furthermore, relatively speaking, the rollers are more effective at removing cotton adhering to the dust cage, but less effective at removing cotton from the licker-in rollers. Utility Model Content

[0008] The purpose of this utility model is to provide a cotton combing structure with relatively good transfer effect between two licking rollers and relatively compact structure. This utility model also provides a cotton cleaning machine equipped with this cotton combing structure.

[0009] According to a first aspect of the present invention, a cotton combing structure is provided 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.

[0010] Optionally, the first surface is a first curved surface.

[0011] 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.

[0012] Optionally, the first gap is no greater than 3.5 mm.

[0013] Optionally, the first gap is 3mm.

[0014] Optionally, the minimum gap between the second curved surface and the lower burr roller is 1.5~4.5mm.

[0015] Optionally, the minimum gap between the second curved surface and the lower burr roller is 1.8mm to 2.4mm.

[0016] Optionally, the wrap angle of the lower squeegee roller corresponding to the second curved surface is 30°~42°.

[0017] Optionally, both ends of the combing component are fixed to the wall panel of the cotton cleaning machine. Accordingly, the combing component includes a baffle plate providing a first face and a second curved face, the baffle plate being bent at the stripping section to form a bent plate.

[0018] Optionally, the stripping section is a cylindrical section, the axial direction of which corresponds to the transverse direction of the cotton cleaning machine, and the bottom radius of the cylindrical section is 0.3~0.8mm.

[0019] Optionally, the combing member includes a beam for supporting the packing plate or includes a set of parallel support plates connected to the back side of the packing plate. If configured as a set of support plates, the support plates located at both ends of the cover plate constitute end plates for connection with the wall panel; the part of the support plate that mates with the cover plate is shaped to the back profile of the cover plate.

[0020] Optionally, a carding adjustment assembly is provided, which is installed at the end of the carding member in a direction extending the second curved section starting from the stripping section, so as to extend the second curved section.

[0021] Optionally, the connection structure between the carding adjustment assembly and the carding part has an adjustment structure or mechanism for radial adjustment of the lower licker-in roller.

[0022] Optionally, the wrap angle of the carding adjustment assembly with respect to the lower licker-in roller is 3° to 6°.

[0023] According to a second aspect of the present invention, a cotton cleaning machine is provided, including the cotton combing structure described in the first aspect of the present invention, wherein the distance between the top circle of the upper licker roller and the top circle of the lower licker roller is 0.4~0.9mm.

[0024] According to an embodiment of this utility model, a cotton combing structure provides a combing component located in a triangular area defined by the cooperation of an upper licker-in roller and a lower licker-in roller. The side of the combing component facing the lower licker-in roller has a second curved surface. The gap between this second curved surface and the lower licker-in roller gradually decreases from the cotton-peeling portion of the combing component, pressing the cotton peeled from the upper licker-in roller onto the lower licker-in roller. The cotton-peeling portion is defined by the second curved surface and a first surface, which is the side of the combing component facing the upper licker-in roller. The first gap between the cotton-peeling portion and the upper licker-in roller is no greater than 4.5 mm and is defined by two intersecting surfaces, forming a shovel-like head. This head scrapes off the cotton layer attached to the upper licker-in roller and guides it through the second curved surface between the second curved surface and the lower licker-in roller, gradually pressing the cotton layer onto the lower licker-in roller. The combing component is a static component, requiring no power component, resulting in a relatively compact overall structure. Its reliability is clearly unaffected by the transmission mechanism. Compared to the problem that the stripping of cotton by rollers requires the cotton layer to have a certain degree of compaction and the centripetal side of the cotton layer to be relatively flat in order to achieve good stripping, the carding component based on the present invention is more adaptable to loose cotton layers. As the cotton layer rotates with the licker-in roller, it tends to detach from the licker-in roller due to the influence of centrifugal force, making the cotton layer relatively loose. This makes the carding component more adaptable to stripping the cotton layer from the upper licker-in roller. Attached Figure Description

[0025] 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.

[0026] Figure 2 for Figure 1 Enlarged view of Part I.

[0027] Figure 3 This is a schematic diagram of the right-side structure of the cotton combing assembly in one embodiment.

[0028] Figure 4 This is a schematic diagram of the right-side structure of the comb component in one embodiment.

[0029] Figure 5 This is a schematic diagram of the right-side structure of the comb component in another embodiment.

[0030] Figure 6 This is a schematic diagram of the main structure of the comb component in one embodiment.

[0031] Figure 7 This is a schematic diagram of the right-side structure of the carding adjustment component in one embodiment.

[0032] Figure 8 This is a schematic diagram of the right-side structure of the carding adjustment component in another embodiment.

[0033] In the diagram: 1. Lower cover of cotton lint channel, 2. Cotton outlet channel, 3. Upper cover of cotton lint channel, 4. Impurity suction assembly, 5. Slide plate, 6. Air baffle assembly, 7. First row of impurity knives, 8. Front cover, 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 row of 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. Pressing plate, 33. Assembly hole, 34. Carding gap, 35. First curved surface, 36. End plate, 37. Weight reduction hole, 38. Fixing hole, 39. Second curved surface, 40. Long hole, 41. Panel, 42. Carding plate, 43. Sealing plate, 44. Reinforcing plate.

[0034] L1. First gap, L2. Second gap, L3. Third gap, L4. Fourth gap, L5. Fifth gap. Detailed Implementation

[0035] To facilitate understanding of this utility model, a more detailed description of it is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of this utility model focus on describing the function of transferring cotton lint 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, only the part involving the transfer of cotton lint from the upper licker-in roller 9 to the lower licker-in roller 17 is described. 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Similarly, statements that are mutually explanatory, such as vertical or horizontal, are also for the purpose of explanation or clarification.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] Upper licker roller 9 and lower licker roller 17 in Figure 1In the illustrated structure, all are installed inside the lower casing 25, while the upper cotton box of the cotton cleaning machine is generally equipped with a cotton inlet pipe and a dust cage assembly.

[0048] 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.

[0049] 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 1 In 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.

[0050] 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.

[0051] 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.

[0052] 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 wind-blocking assembly 6, 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.

[0053] 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.

[0054] 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.

[0055] Furthermore, the upper licker-in roller 9 and the lower licker-in roller 17 have a predetermined distance, and two triangular areas are formed on both sides of the connecting surface of the two licker-in rollers. One of the triangular areas is used to set the cotton combing structure. This triangular area is obviously located on the side of the upper licker-in roller 9 away from the first row of impurity knife group 7, that is, the cotton needs to be peeled off from the upper licker-in roller 9 after impurity removal. For ease of explanation, the triangular area with the cotton combing structure is called the first triangular area, and the other triangular area is called the second triangular area.

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] 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.

[0064] Accordingly, the first gap between the cotton stripping section 26 and the upper licker-in roller 9 is no greater than 4.5 mm, otherwise the cotton lint cannot be scraped off the upper licker-in roller 9. At the same time, the second gap between the cotton stripping section 26 and the lower licker-in roller 17 is 12~20 mm, 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.

[0065] 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] Regarding the gradual increase, a linear increase is preferred, and the slope of the linear increase is not greater than 0.035.

[0071] 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.

[0072] Taking into account both manufacturing and assembly errors, the first gap is 3mm.

[0073] 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.

[0074] Also taking into account manufacturing and assembly errors, and considering that the diameter of the lower licker roller 17 is relatively large, the minimum value of the fourth gap 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 is 2mm.

[0075] 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°.

[0076] 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.

[0077] 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 main body shown is rectangular, represented by end plate 35.

[0078] 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.

[0079] Accordingly, the mounting plate is in Figures 3-5 The middle part consists of an end plate 35, which has four mounting holes 32 in the figure. These mounting holes 32 are screw holes, and can be fixed to the wall panel 16 by screw connection.

[0080] 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.

[0081] exist Figures 3-5In 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] Regarding the adjustment method of the carding 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.

[0086] 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.

[0087] 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.

[0088] Another linear adjustment method is to use the elongated hole 39, whose extension direction is obviously radial to the lower licker roller 17.

[0089] The 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 fixing hole 37 shown is a threaded hole, while Figure 5In the illustrated structure, the elongated hole 39 is used instead. When the combing component 14 is provided with the corresponding fixing hole 37, the combing adjustment component 15 is provided with the elongated hole 39. Otherwise, the elongated hole 39 is provided on the combing component 14.

[0090] The gap between the surface of the carding adjustment component 17 and the lower carding roller 17 can be equal, and the wrap angle of the carding adjustment component 15 to the lower carding roller 17 is 3°~6°. The carding component 14 mainly functions to card the lint, while the carding adjustment component 15 is used to assist in carding, and its size should not be too large.

[0091] 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 cotton lint combing structure, characterized in that, Used in a cotton cleaning machine to transfer cotton from the upper licker-in roller to the lower licker-in roller, the cotton combing structure includes a combing component located in a triangular area defined by the cooperation of the upper and lower licker-in rollers. The side of the combing component 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 the 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.

2. The cotton combing structure according to claim 1, characterized in that, The first surface is the first curved surface.

3. The cotton combing structure according to claim 2, 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.

4. The cotton combing structure according to any one of claims 1 to 3, characterized in that, The first gap is no greater than 3.5mm.

5. The cotton combing structure according to claim 4, characterized in that, The first gap is 3mm.

6. The cotton combing structure according to claim 1, characterized in that, The minimum gap between the second curved surface and the lower burr roller is 1.5~4.5mm.

7. The cotton combing structure according to claim 6, characterized in that, The minimum gap between the second curved surface and the lower burr roller is 1.8mm to 2.4mm.

8. The cotton lint combing structure according to claim 1, 6, or 7, characterized in that, The wrap angle of the lower squeegee corresponding to the second curved surface is 30°~42°.

9. The cotton combing structure according to claim 1, characterized in that, The two ends of the combing component are respectively fixed to the wall panel of the cotton cleaning machine; Accordingly, the combing component includes a baffle plate providing a first face and a second curved face, the baffle plate being bent at the stripping section to form a bent plate.

10. The cotton combing structure according to claim 9, characterized in that, The cotton stripping section is a cylindrical section, the axial direction of which corresponds to the transverse direction of the cotton cleaning machine, and the bottom radius of the cylindrical section is 0.3~0.8mm.

11. The cotton combing structure according to claim 9, characterized in that, The combing component includes a beam for supporting the packing plate or includes a set of parallel support plates connected to the back side of the packing plate. If configured as a set of support plates, the support plates located at both ends of the cover plate constitute end plates for connection with the wall panel; the part of the support plate that mates with the cover plate is shaped to the back profile of the cover plate.

12. The cotton lint combing structure according to claim 1, characterized in that, A carding adjustment assembly is provided, which is installed at the end of the carding member in a direction extending the second curved section starting from the stripping section, so as to extend the second curved section.

13. The cotton lint combing structure according to claim 12, characterized in that, The connection structure between the carding adjustment assembly and the carding part has an adjustment structure or mechanism for radial adjustment of the lower licker-in roller.

14. The cotton lint combing structure according to claim 12 or 13, characterized in that, The wrap angle of the carding adjustment assembly to the lower licker-in roller is 3°~6°.

15. A cotton cleaning machine, characterized in that, It includes the cotton combing structure as described in any one of claims 1 to 14, wherein the distance between the top circle of the upper licker-in roller and the top circle of the lower licker-in roller is 0.4 to 0.9 mm.

Images