Sealing structure and lint removal machine

Abstract

The present invention discloses a sealing structure and a lint cleaning machine, wherein the sealing structure is applicable to a lint cleaning machine having a stripping roller and a feeding roller, and the sealing structure comprises: an upper sealing structure for sealing between the rear stripping roller in the stripping roller and the rear wall plate in the lint cleaning machine; and a lower sealing structure for sealing between the rear feeding roller in the feeding roller and the cotton picking plate in the lint cleaning machine. The present invention has good sealing performance.

Description

Technical Field

[0001] The invention relates to a sealing structure used for sealing the rear side of a cotton layer conveying mechanism for conveying a cotton layer from a dust cage mesh surface to a licker-in roller in a lint cleaning machine. The invention also relates to a lint cleaning machine equipped with the sealing structure. Background Art

[0002] Citations in order of publication:

[0003] The first patent document: Chinese patent document CN2793106Y, titled "Improved Lint Cleaning Machine", published on July 5, 2006;

[0004] The second patent document: Chinese patent document CN205258699U, named as needle-type lint cleaning machine, published on May 25, 2016;

[0005] The third patent document: Chinese patent document CN209906945U, named as a lint cleaning machine, published on 2020.01.07.

[0006] The first patent document is an earlier patent document in China related to a lint cleaning machine, and it has a relatively clear description of the principle of the lint cleaning machine. Specifically, the cotton layer adsorbed by the dust cage in the lint cleaning machine is peeled off by a pair of cotton stripping rollers located at the lower side of the dust cage, and then the peeled cotton layer is clamped by a pair of cotton feeding rollers located below the cotton stripping rollers and transported downward to the licker-in roller. Among them, one end of the dust cage is generally connected to a device for inducing air, and a negative pressure is formed in the dust cage, so that the lint entering from the cotton inlet can be adsorbed onto the dust cage mesh surface. In order to prevent the debris or lint located in the lower cotton box from being sucked away, the assembly formed by the cotton stripping roller and the dust cage needs to be sealed relative to the lower cotton box.

[0007] In the first patent document, on the lower side of the upper cotton box, a pair of stripping rollers have a sealing plate on both sides, and the sealing plate on the rear side has a split plate, which cooperates with the rear feeding roller to form a further seal. The first patent document does not consider the seal between the rear feeding roller and the cotton picking plate. In actual use, there is a certain distance between the rear feeding roller and the cotton picking plate. A small amount of lint that is not removed by the cotton picking plate may be ejected from this position. Although not much, it will accumulate over time.

[0008] The second patent document and the third patent document have the same technology, and both omit the cotton feeding roller in structure. However, in principle, the sealing structures considered in the two patent documents are mainly the sealing problems between the upper and lower cotton boxes, but they are slightly different.

[0009] Among them, the component marked as the cotton pressing roller in the second patent document is the rear cotton stripping roller. The dust cage draft force is sealed relative to the lower cotton box by using a sealing plate to seal the rear side of the rear cotton stripping roller. This sealing structure does not extend to the area between the rear cotton stripping roller and the cotton picking plate, and the problem of residual lint spraying out of this area still cannot be solved.

[0010] Compared with the second patent document, the third patent document moves the sealing structure of the dust cage draft force relative to the lower cotton box by using a sealing plate to seal the rear side of the rear cotton stripping roller downward, and directly constructs the seal between the rear cotton stripping roller and the cotton picking plate. This structure seems to solve both the sealing of the dust cage draft force relative to the lower cotton box by using a sealing plate to seal the rear side of the rear cotton stripping roller and the sealing between the rear side of the rear cotton stripping roller and the cotton picking plate. However, after the dust cage is stripped of the lint on its surface by the cotton stripping roller, the mesh surface at the lower rear side of the dust cage is fully connected, and the lower rear side of the upper cotton box and the upper rear side of the lower cotton box will generate a relatively large negative pressure. The sealing structure between the rear cotton stripping roller and the cotton picking plate is a relatively complex structure with a large overall sealing gap. The clockwise rotating rear cotton stripping roller is also prone to carry a certain amount of cotton fibers and enter the negative pressure zone under negative pressure conditions.

[0011] After investigation, it was found that the reason why cotton fibers were ejected in the area between the rear cotton feeding roller and the cotton picking plate in the first patent document with two pairs of rollers was not because the rear side of the rear cotton stripping roller was not sealed, but because it was a dynamic seal, the sealing effect was relatively poor, and a negative pressure area was still generated on the rear side of the rear cotton stripping roller. Similarly, even if the sealing structure in the aforementioned third patent document moves downward, because it is a dynamic seal, especially when the negative pressure area is directly connected to the dust cage area, the negative pressure area has a greater negative pressure. Summary of the invention

[0012] In view of this, with respect to a lint cleaning machine having both a cotton feeding roller and a cotton stripping roller, an object of the present invention is to provide a sealing structure with better sealing performance. The present invention also provides a lint cleaning machine with the sealing structure.

[0013] In an embodiment of the present invention, a sealing structure is provided, which is applicable to a lint cleaning machine having a stripping roller and a feeding roller, and the sealing structure comprises:

[0014] The upper sealing structure is used for sealing between the middle and rear stripping rollers of the stripping rollers and the middle and rear wall plate of the lint cleaning machine;

[0015] The lower sealing structure is used for sealing between the rear cotton feeding roller in the cotton feeding roller and the cotton picking plate in the lint cleaning machine.

[0016] Optionally, it also includes a middle sealing structure arranged on the rear side between the rear cotton stripping roller and the rear cotton feeding roller.

[0017] Optionally, the middle sealing structure includes:

[0018] The crossbeam is located at the rear side of the space between the rear cotton stripping roller and the rear cotton feeding roller, and the end of the crossbeam and the side wall panel where the cotton box is located are assembled through an adjustable structure, so that the position of the crossbeam can be adjusted;

[0019] The scraper is installed on the crossbeam, the upper part of the scraper is in sealed dynamic cooperation with the rear side of the rear cotton stripping roller, and the lower part of the scraper is in sealed dynamic cooperation with the rear side of the rear cotton feeding roller.

[0020] Optionally, the adjustable structure is constructed as follows:

[0021] One of the ends of the cross beam and the corresponding side wall plate is provided with an elongated hole, and the other is provided with a bolt hole;

[0022] The long holes and bolt holes are used to fit the bolts for assembly.

[0023] Optionally, the scraper comprises:

[0024] Plate body, used for assembling the scraper on the beam;

[0025] The matching part is provided at each end of the plate body, and is a component or structural part for matching between the scraper and the rear cotton stripping roller or the rear cotton feeding roller.

[0026] Optionally, the plate body and the matching portion are constructed as one body, and the scraper is correspondingly an elastic sealing component or a polytetrafluoroethylene slide plate; or

[0027] The plate body is a rigid component, and the matching part is an elastic sealing component, which is fixed to the plate body by screws, rivets or bonding.

[0028] Optionally, the lower sealing structure comprises:

[0029] A base portion, which is fixed to a seat of a cotton picking plate in a lint cleaning machine and extends forward;

[0030] The lower end of the joint is fixedly mounted on the base or is an integral structure with the base, and the upper front side of the joint is dynamically matched and sealed with the rear cotton feeding roller.

[0031] Optionally, the joint portion is a rubber and the base portion is a sheet metal part;

[0032] The rubber and the base are fixedly connected by bonding, riveting or screws.

[0033] Optionally, the rubber sheet is flexibly cooperated with the rear cotton feeding roller to bend the rubber sheet, and an angle between two parts formed by the bending is greater than or equal to 100 degrees and less than or equal to 150 degrees.

[0034] Optionally, the base is an arc-shaped plate body, and the arc-shaped plate body is coaxial with the licker-in roller.

[0035] Optionally, a reinforcement structure is provided on a side of the base away from the licker-in roller.

[0036] Optionally, the base and a component for defining an upper wall plate of a cotton outlet channel in the lint outlet cleaning machine are an integrated structure.

[0037] Optionally, the upper sealing structure includes a fixing plate extending from the rear wall plate toward the rear cotton stripping roller and a rubber installed at the extended end of the fixing plate and movably cooperating with the rear cotton stripping roller;

[0038] The fixed plate is statically sealed to the left and right wall panels.

[0039] In an embodiment of the present invention, a lint cleaning machine having the aforementioned sealing structure is also provided.

[0040] Optionally, the lower channel plate of the lint channel is determined to be an air supply plate;

[0041] The rear end of the air supply plate is a fixed end, and the front end is an adjustment end. The front end is located below the licker-in roller and forms an air supply port with the licker-in roller.

[0042] Optionally, the front end of the air supply plate is supported on a beam, and the beam is connected to the wall panel through an adjustable connection structure to adjust the size of the air supply port.

[0043] Compared with the windproof structures at a single point on the rear side of the rear cotton stripping roller and the rear cotton feeding roller cited in the three patent documents in the background technology section, in the embodiment of the present invention, upper and lower sealing structures are provided, wherein the upper sealing structure is used for sealing between the rear cotton stripping roller and the rear wall panel in the lint cotton cleaning machine, and the negative pressure space formed by the dust cage draft forms a first-level seal relative to the lower cotton box. Under this condition, the negative pressure in the space below the upper sealing structure is relatively small. Furthermore, regarding the lower sealing structure, it is used for sealing between the rear cotton feeding roller in the cotton feeding roller and the cotton picking plate in the lint cotton cleaning machine to directly seal the space between the cotton picking plate and the rear cotton feeding roller, so as to prevent the lint cotton remaining on the licker-in roller from being sucked into the space between the upper sealing structure and the lower sealing structure. In particular, since the space has a smaller negative pressure due to the existence of the upper sealing structure, the burden on the lower sealing structure is reduced. In summary, the negative pressure formed by the dust cage draft has two-level sealing on the rear side relative to the licker-in roller, and has a relatively good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural schematic diagram of a lint cleaning machine in one embodiment.

[0045] Figure 2 It is a schematic diagram of the structure of the cotton layer conveying mechanism of the lint cleaning machine in one embodiment.

[0046] Figure 3 The figure is a schematic diagram of the assembly structure of the front and rear cotton feeding rollers on the lint cleaning machine in one embodiment.

[0047] In the figure: 1. Support leg, 2. Straightening plate, 3. Flanging, 4. Air supply port, 5. Taker-in roller, 6. Straightening knife, 7. Lower cotton box, 8. Upper cotton box, 9. Front sealing rubber, 10. Front stripping roller, 11. Front wall plate of air duct, 12. Dust cage, 13. Air duct, 14. Cotton inlet, 15. Sealing rubber, 16. Rear stripping roller, 17. Rear sealing rubber, 18. Lower support plate, 19. Roller scraper assembly, 20. Front feeding roller, 21. Rear feeding roller, 22. Sealing plate, 23. Straightening plate , 24. Cotton picking plate assembly, 25. Cotton outlet, 26. Air supply plate, 27. Mounting seat, 28. Long hole, 29. Bolt, 30. Nut, 31. Flat washer, 32. Spring washer, 33. Bolt, 34. Nut, 35. Flat washer, 36. Bolt hole, 37. Mounting plate, 38. Crossbeam, 39. Scraper, 40. Sealing rubber, 41. Support, 42. Front feeding roller shaft, 43. Rear feeding roller shaft, 44. Guide hole, 45. Bearing seat, 46. Spring guide column assembly. DETAILED DESCRIPTION

[0048] Since most cotton processing machines rely on wind power for transportation, they often need to be configured with a relatively closed box in terms of structure. The panels located around the box to build the box are usually called wall panels.

[0049] In terms of orientation, based on the flow of materials, the cotton processing machinery has a definite front and back, and a corresponding left and right.

[0050] Cleaning machines are divided into lint cleaning machines and seed cotton cleaning machines. The sealing structure provided in the embodiment of the present invention is specifically suitable for lint cleaning machines having a cotton stripping roller and a cotton feeding roller.

[0051] Figure 1 The lint cleaning machine structure shown is a common lint cleaning machine structure, but it is not the only lint cleaning machine structure. However, in most lint cleaning machines, the two stripping rollers used to strip the lint absorbed on the dust cage 12 and the two feeding rollers used to transport the lint stripped by the two stripping rollers downward are roughly in an up and down relationship in orientation, but the position will deviate in the horizontal direction depending on different choices.

[0052] From the perspective of location, Figure 1 and Figure 2 In the structure shown, three sealing structures are provided at the rear stripping roller 16 and the rear feeding roller 21 at the rear side of the cotton box, which are respectively referred to as an upper sealing structure, a middle sealing structure and a lower sealing structure from top to bottom.

[0053] The background technology part involves three patent documents, among which the first patent document only considers the upper sealing structure and the middle sealing structure, and the second patent document is equivalent to having only one sealing structure. After the dust cage 12 is stripped of the absorbed cotton layer by the rear stripping roller 21, the mesh is directly exposed. Figure 1 A higher negative pressure is formed in the lower right area of ​​the dust cage 12. For the second patent document, only one sealing structure is used, and it is difficult to obtain a good sealing effect. There is a higher negative pressure at the rear cotton feeding roller 21 and the cotton picking plate assembly 24, which easily causes the lint remaining on the licker-in roller 5 to be sucked out.

[0054] In an embodiment of the present invention, Figure 1 As shown, at least two sealing structures are provided to prevent the lint remaining on the licker-in roller 5 from being sucked out. Specifically, the upper sealing structure and the lower sealing structure, wherein the upper sealing structure is used for sealing between the rear stripping roller 16 and the rear wall of the lint cleaning machine, such as Figure 1 The rear sealing rubber 17 shown in the figure, and the lower support plate 18 providing support for the rear sealing rubber 17.

[0055] For the lower sealing structure, Figure 1 and Figure 2 In the structure shown, the seal between the rear feeding roller 21 and the cotton picking plate assembly 24 is as follows: Figure 1 The sealing plate 22 shown in FIG.

[0056] Based on the above structure, the upper sealing structure first forms the first-level seal, for example Figure 1 The dynamic seal between the rear sealing rubber and the rear stripping roller shown in the figure will greatly reduce the burden of the second-level seal, that is, the lower sealing structure, even if there is leakage.

[0057] The lower sealing structure directly blocks the opening between the rear feeding roller 21 and the cotton picking plate assembly 24. In the presence of the upper sealing structure, the lint remaining on the licker-in roller 5 can be effectively prevented from being spit out.

[0058] For the middle seal structure, it can be seen Figure 1 The middle and Figure 2 The middle right side of Figure 2 The structure shown is Figure 1 The local structure is recorded as the cotton layer conveying mechanism, which is an assembly used to convey the cotton layer from the dust cage to the licker-in roller in the lint cleaning machine. Figure 2 As can be seen from the structure shown, the cotton layer conveying mechanism includes two cotton stripping rollers, two cotton feeding rollers, and a roller scraper assembly 19 for dynamic sealing on the rear side.

[0059] Figure 2 In the machine, the two stripping rollers are arranged front and back in the direction, usually mounted on the left and right wall plates through bearings. Figure 2Among them, one is the front stripping roller 10, and the other is the rear stripping roller 16 located at the rear side of the front stripping roller 10 and forming a cotton conveying gap with the front stripping roller 1.

[0060] It can be understood that the component that strips the lint from the dust cage 12 is mainly the rear stripping roller 16, and the front stripping roller 10 rotates in opposite directions to the rear stripping roller 16 to clamp and transport the lint stripped by the rear stripping roller 16 downward.

[0061] Generally speaking, there is a certain height difference between the front cotton stripping roller 10 and the rear cotton stripping roller 16. When the front cotton stripping roller 10 and the rear cotton stripping roller 16 are separated on both sides of the vertical symmetry plane of the dust cage 12 passing through its axis, a gap is left between the front cotton stripping roller 10 and the dust cage 12, and it turns in the opposite direction to the dust cage 12.

[0062] The rear stripping roller 16 is often in a state of being basically in contact with the dust cage 12 so as to strip the lint from the dust cage 12 . The rear stripping roller 16 and the dust cage 12 generally rotate in the same direction.

[0063] Regarding the height difference, according to the corresponding reference system, the two stripping rollers are located on both sides of the middle section of the dust cage 12 passing through its own axis;

[0064] The front stripping roller 10 is offset downward relative to the rear stripping roller 16, and the offset is based on the axis of the two stripping rollers.

[0065] Preferably, the amount of the front stripping roller 10 that is offset downward relative to the rear stripping roller 16 is 0.037 to 0.040 times the radius of the stripping roller.

[0066] Simply using two cotton stripping rollers will make the state of the cotton layer transported downward unstable, especially since the individual cotton stripping rollers are relatively large. If they are directly matched with the licker-in roller 5, the triangular area formed will be relatively large. In other words, the uncontrollable spatial distance through which the cotton lint passes is relatively large. After the unstable cotton layer is entangled by the licker-in roller 5, the thickness of the cotton layer formed on the licker-in roller 5 is uneven, resulting in a poor cleaning effect and damage to the cotton fibers. The discharged impurities contain more cotton fibers, which is the so-called white cotton discharge phenomenon.

[0067] For this purpose, a pair of feeding rollers needs to be arranged below the two stripping rollers. Relatively speaking, the individual feeding rollers are relatively small, and the triangular area formed thereby is relatively small. In addition, based on the pulling generated by the clamping, the unstable state formed by the downward sending of the two stripping rollers is eliminated, which is equivalent to pulling the cotton layer between the two stripping rollers and the two feeding rollers, so that this part of the cotton layer is straightened, which is conducive to forming a cotton layer with relatively uniform thickness on the licker-in roller 5.

[0068] In particular, by adjusting the speed, the linear speed of the feeding roller can be made slightly greater than the linear speed of the stripping roller. The aforementioned straightening is further manifested as elongation, and the thickness of the cotton layer on the licker-in roller 5 can be adjusted.

[0069] It can be understood that a thinner cotton layer is conducive to improving the trash removal rate and can improve the adaptability of the trash removal knife 6, especially the number of the trash removal knives 6 can be further reduced.

[0070] More specifically, one of the two cotton feeding rollers is a front cotton feeding roller 20 , and the other is a rear cotton feeding roller 21 located at the rear side of the front cotton feeding roller 20 and forming a cotton feeding gap with the front cotton feeding roller 20 .

[0071] In order to reduce the influence of wind and make the cotton layer more stable during its downward movement, the rear sides of the rear cotton stripping roller 16 and the rear cotton feeding roller 21 need to be sealed.

[0072] exist Figure 2 In the structure shown, a crossbeam 38 is provided, and a scraper 39 is installed on the crossbeam 38. The upper part of the scraper 39 is movably matched with the rear side of the rear cotton stripping roller 16, and the lower part is movably matched with the rear side of the rear cotton feeding roller 21 to form a seal.

[0073] The cross beam 38 can be made of rectangular steel pipes, or profiles such as channel steel. Figure 2 In the structure shown, the cross section of the crossbeam 38 is roughly a right-angled trapezoidal structure to adapt to the shape and position relationship between the rear cotton stripping roller 16 and the rear cotton feeding roller 21.

[0074] The two ends of the cross beam 38 can be plates, which are welded to the body of the cross beam 38 by welding. The plates are directly or indirectly connected to the wall panels on the corresponding sides. The connection is an adjustable connection, which can be adjusted to a position, so that the position of the cross beam 38 can be adjusted, so that the components located on the cross beam 38 can be adjusted.

[0075] Regarding the position adjustment structure of the beam 38, an adjustment structure by means of a mechanism may be adopted. For example, the two ends of the beam 38 are respectively driven by a linear motion mechanism, and when adjusting, the related linear motion mechanism is driven to achieve the position adjustment of the beam 38.

[0076] In some embodiments, the adjustable structure is configured as:

[0077] One of the ends of the cross beam 38 and the corresponding side wall plate is provided with an elongated hole, and the other end is provided with a bolt hole;

[0078] The long holes and bolt holes are used to fit the bolts for assembly.

[0079] Mounting fasteners can be found on Figure 2The bolt 33, nut 34 and flat washer 35 in the embodiment can also be replaced by a spring washer 32, and the flat washer 35 and the spring washer 32 can be used together.

[0080] The elongated hole may be a straight hole or an arc-shaped hole.

[0081] The structure of the scraper 39 can be a single structure or an assembled structure. In some embodiments, the scraper 39 includes a plate body and a matching part, wherein the plate body is used for assembling the scraper 39 on the cross beam 38. The assembly between the plate body and the cross beam 38 can be connected by screws or by an adhesive structure. Today, when metal glue technology is relatively mature, the non-detachable connection between some plate structures, in addition to welding, is more commonly achieved by bonding with metal glue.

[0082] For screw connection, a plurality of screw holes may be opened on the plate body, and the plate body is fixed on the crossbeam 38 using screws.

[0083] Furthermore, riveting, for example, can also be used.

[0084] It is not easy to adjust the assembly error of a rigid plate body. Therefore, the matching part is provided at each end of the plate body, and is a component or structural part for matching between the scraper and the rear cotton stripping roller 16 or the rear cotton feeding roller 21 .

[0085] The matching portion, when used as a component, is adapted to the aforementioned assembly structure of the scraper 39 , and when used as a structural portion, is adapted to the aforementioned single body structure of the scraper 39 .

[0086] When used as a single structure, the scraper 39 itself can be a relatively rigid structure. As a plate body, it has a certain elasticity, which can reduce the impact of assembly errors and manufacturing errors.

[0087] In some embodiments, the plate body and the matching portion are constructed as one body, that is, the scraper 39 adopts a single body structure, and the scraper 39 is correspondingly an elastic sealing component, such as a rubber sheet, and may also be a polytetrafluoroethylene slide plate.

[0088] In some embodiments, the plate body is a rigid component, such as a steel plate, and the matching part is an elastic sealing component, such as rubber, and the elastic sealing component is fixed to the plate body by screws, rivets or bonding.

[0089] As mentioned above, due to different purposes, although both are rollers, the stripping roller and the feeding roller are not the same, which is common knowledge in the art. In the embodiment of the present invention, the diameter of the stripping roller is 110-200 mm, and the diameter of the feeding roller is 50-100 mm, in other words, the stripping roller is relatively larger.

[0090] Correspondingly, the diameter relationship between the cotton stripping roller and the cotton feeding roller is positively correlated, that is, the larger cotton stripping roller is adapted to the larger cotton feeding roller, and the smaller cotton stripping roller is adapted to the smaller cotton feeding roller.

[0091] In some embodiments, the cotton feed roller is positively correlated with the machine width of the lint cleaning machine, in that when the machine width is larger, the middle of the cotton feed roller is suspended longer and is prone to bending and deformation, thereby generating larger swings when rotating at high speed.

[0092] In principle, the smaller the cotton feed roller is, the better, provided that the overall rigidity can be guaranteed, so that the distance between the clamping point of the cotton feed roller and the licker-in roller 5 is as small as possible, thereby ensuring the stability of lint conveying.

[0093] In addition, the aforementioned given distance refers to the distance between the midpoint of the connecting line of the two stripping rollers and the midpoint of the connecting line of the two feeding rollers;

[0094] The given distance is 100~300mm.

[0095] In some embodiments, the front cotton feed roller 20 is fixed in a direction relative to the rear cotton feed roller 21; correspondingly, the rear cotton feed roller 21 floats in a direction relative to the front cotton feed roller 20, so that when the cotton layer is relatively thick, the rear cotton feed roller 21 moves in the opposite direction of the front cotton feed roller 10, thereby increasing the cotton feeding gap and reducing damage to the support structure of the cotton feed roller.

[0096] exist Figure 3 In the structure shown, the supporting member supporting the rear feed roller 21 is guided by a guiding member or a guiding structure in a direction opposite to the front feed roller 20, as shown in FIG. Figure 3 The guide hole 44 shown in FIG. 4 is correspondingly configured as a bearing seat 45 , and the bearing seat 45 is guided in the guide hole 44 .

[0097] Furthermore, an elastic support is provided on a side of the rear feeding roller 21 opposite to the front feeding roller 20 .

[0098] about Figure 3 In the structure shown, there is a spring guide column assembly 46, which is shown as a structure at one end of the rear feed roller shaft 43, for example, and the same structure exists at the other end of the rear feed roller shaft 43.

[0099] The spring guide column assembly 46 is installed on the corresponding side wall plate or other relatively fixed structure, and the push rod of the spring guide column assembly 46 is supported on the rear side of the bearing seat 45 to provide a floating support portion for the bearing seat 45.

[0100] The specific structure of the lower sealing structure can be found in Figure 2, the figure includes a sealing plate 22, the sealing plate 22 is used as a base for installing the joint, the joint can be made of, for example, a sealing rubber 40, to obtain a better seal.

[0101] The sealing plate 22 is mainly made of sheet metal to obtain higher rigidity.

[0102] The configuration of the lower sealing structure can refer to the aforementioned middle sealing structure, which is described in detail in the previous text. Specifically, the base and the joint portion can be an integral structure, or an assembled structure can be used between the two.

[0103] When an integral structure is used, for example, a polytetrafluoroethylene slide plate or a similar structural member, such as a modified polytetrafluoroethylene slide plate, is used.

[0104] The base is fixed on the seat of the cotton picking plate in the lint cleaning machine and extends forward.

[0105] As for the joint part, its lower end is fixedly mounted on the base or is an integral structure with the base, and the upper front side of the joint part is dynamically matched and sealed with the rear cotton feeding roller 21.

[0106] In a preferred embodiment, the sealing rubber 40 is flexibly matched with the rear cotton feeding roller 21 to bend the sealing rubber 40, and the angle between the two parts formed by the bending is greater than or equal to 100 degrees and less than or equal to 150 degrees. The angle should not be too large, otherwise the sealing rubber 40 will be too flexible and easy to be damaged. It should not be too small either, because the sealing performance of the sealing rubber 40 depends on the size of the positive pressure, and the positive pressure is generated by the rebound of the sealing rubber 40. Too small an angle is not easy to produce a good match.

[0107] Preferably, Figure 2 In the embodiment, the sealing plate 22 is an arc-shaped plate body, and the arc-shaped plate body is coaxial with the licker-in roller.

[0108] Further, a reinforcement structure is provided on the side of the base away from the licker-in roller 5. In some embodiments, Figure 2 As shown, an angle steel member is welded to the back side of the sealing plate 22, that is, the side away from the licker-in roller 5, to improve the overall rigidity.

[0109] In some embodiments, the sealing plate 22 may also be welded with other types of reinforcing structures, such as ribs around the licker-in roller 5 .

[0110] exist Figure 1 In the structure shown, the cotton-smoothing plate 23 and the sealing plate 22 are an integral structure, formed by bending a whole steel plate. The cotton-smoothing plate 23 is the upper wall plate of the cotton outlet channel in the lint-discharging cleaning machine.

[0111] Figure 1In the embodiment of the present invention, seven debris removal knives 6 are provided. Relatively speaking, the more the debris removal knives 6 are, the better the effect is. In the embodiment of the present invention, seven or eight debris removal knives 6 are used. Too many debris removal knives will cause greater damage to the cotton fibers.

[0112] A debris removal plate 2 is provided at the lower side of the last debris removal knife 6 to remove the impurities cut by the debris removal knife 6.

[0113] The bottom plate of the lower cotton box 7 on the lower side of the impurity plate 2 is opened for discharging impurities.

[0114] Figure 1 The lower side of the lower cotton box 7 is formed with the components of the lower wall plate of the cotton outlet passage. Figure 1 The air supply plate 26 shown in FIG. 1 , the rear end of the air supply plate 26, that is, Figure 1 The right end is its fixed end, which can be fixed to the rear wall plate of the lower cotton box 7 by screws.

[0115] The left and right sides of the air supply plate 26 are engaged with the left and right wall panels but not connected. The front end of the air supply plate 26 is an adjustment end, or the up and down adjustment of the air supply plate 26 will cause the distance between the front end of the air supply plate 26 and the licker-in roller 5 to change. The front end of the air supply plate 26 is located below the licker-in roller 5, and an air supply port 4 is formed between the licker-in roller 5 to ensure that the lint layer is smoothly discharged.

[0116] Figure 1 In the embodiment, the front end of the air supply plate 26 is supported on a beam, and the beam is connected to the wall panel through an adjustable connection structure to adjust the size of the air supply port 26.

[0117] In the figure, there is a mounting seat 27 at each end of the beam. The mounting seat 27 is a plate with an elongated hole 28. The elongated hole 28 is used for assembly with bolts 29. The size of the air supply port 26 can be adjusted by adjusting the position of the mounting seat 27 on the wall panel.

[0118] In addition, for the upper sealing structure, Figure 1 In the relatively conventional embodiment, the upper sealing structure includes a fixing plate extending from the rear wall plate to the rear stripping roller 16, that is, Figure 1 The lower support plate 18 shown in the figure, and then the rubber at the extended end of the lower support plate 18 and movably matched with the rear cotton stripping roller 16, that is, the rear sealing rubber 17 shown in the figure.

[0119] The lower support plate 18 is statically sealed to the left and right wall panels, and in a preferred structure, the connection can be made by welding, for example.

[0120] Because it is a static connection, sealing is easy to achieve, and welding is not necessary. The lower support plate 18 is a sheet metal part, and a rubber strip is pressed between the sheet metal part and the wallboard, which is easy to obtain better sealing performance.

Claims

1. A sealing structure, suitable for a lint cleaning machine having a stripping roller and a feeding roller, characterized in that: The sealing structure comprises: The upper sealing structure is used for sealing between the middle and rear stripping rollers of the stripping rollers and the middle and rear wall plate of the lint cleaning machine; The lower sealing structure is used for sealing between the rear feeding roller in the feeding roller and the cotton picking plate in the lint cleaning machine; It also includes a middle sealing structure arranged at the rear side between the rear cotton stripping roller and the rear cotton feeding roller; The sealing structure includes: The crossbeam is located at the rear side of the space between the rear cotton stripping roller and the rear cotton feeding roller, and the end of the crossbeam and the side wall panel where the cotton box is located are assembled through an adjustable structure, so that the position of the crossbeam can be adjusted; A scraper is mounted on the crossbeam, the upper portion of the scraper is in sealed dynamic cooperation with the rear side of the rear cotton stripping roller, and the lower portion of the scraper is in sealed dynamic cooperation with the rear side of the rear cotton feeding roller; The lower sealing structure includes: A base portion, which is fixed to a seat of a cotton picking plate in a lint cleaning machine and extends forward; The lower end of the joint is fixedly mounted on the base or is an integral structure with the base, and the upper front side of the joint is dynamically matched and sealed with the rear cotton feeding roller.

2. The sealing structure according to claim 1, characterized in that: The adjustable structure is constructed as follows: One of the ends of the cross beam and the corresponding side wall plate is provided with an elongated hole, and the other is provided with a bolt hole; The long holes and bolt holes are used to fit the bolts for assembly.

3. The sealing structure according to claim 1 or 2, characterized in that: The scraper comprises: Plate body, used for assembling the scraper on the beam; The matching part is provided at each end of the plate body, and is a component or structural part for matching between the scraper and the rear cotton stripping roller or the rear cotton feeding roller.

4. The sealing structure according to claim 3, characterized in that: The plate body and the matching part are constructed as one body, and the scraper is correspondingly an elastic sealing component or a polytetrafluoroethylene sliding plate; or The plate body is a rigid component, and the matching part is an elastic sealing component, which is fixed to the plate body by screws, rivets or bonding.

5. The sealing structure according to claim 1, characterized in that: The joint part is rubber and the base is sheet metal; The rubber and the base are fixedly connected by bonding, riveting or screws.

6. The sealing structure according to claim 5, characterized in that: The rubber is flexibly coordinated with the rear feeding roller to bend the rubber, and the angle between the two parts formed by the bending is greater than or equal to 100 degrees and less than or equal to 150 degrees.

7. The sealing structure according to claim 5, characterized in that: The base is an arc-shaped plate body, and the arc-shaped plate body and the licker-in roller are coaxial.

8. The sealing structure according to claim 5 or 7, characterized in that: A reinforcement structure is arranged on one side of the base away from the licker-in roller.

9. The sealing structure according to claim 5, characterized in that: The base is an integrated structure with a component used for determining an upper wall plate of a cotton outlet passage in a lint outlet cleaning machine.

10. The sealing structure according to claim 1, characterized in that: The upper sealing structure includes a fixed plate extending from the rear wall plate to the rear stripping roller and a rubber installed at the extended end of the fixed plate and movably cooperating with the rear stripping roller; The fixed plate is statically sealed to the left and right wall panels.

11. A lint cleaning machine having the sealing structure according to any one of claims 1 to 10.

12. The lint cleaning machine according to claim 11, characterized in that: Determine that the lower channel plate of the lint channel is an air supply plate; The rear end of the air supply plate is a fixed end, and the front end is an adjustment end. The front end is located below the licker-in roller and forms an air supply port with the licker-in roller.

13. The lint cleaning machine according to claim 12, characterized in that: The front end of the air supply plate is supported on a beam, and the beam is connected to the wall panel through an adjustable connection structure to adjust the size of the air supply port.

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