Velvet suction pipeline structure of delinting machine and delinting machine

Abstract

The utility model discloses a down suction pipeline structure of a delinting machine and the delinting machine, and provides the down suction pipeline structure of the delinting machine, the down suction pipeline structure of the delinting machine comprises a bent pipe part, and the bent pipe part comprises a centrifugal side structural plate; a transverse seam perpendicular to the airflow direction is formed in the centrifugal side structural plate, and the centrifugal side structural plate is divided into a rear side plate body and a front side plate body by the transverse seam; the rear portion of the front side plate body is provided with a collapsed edge which is folded outwards so that the collapsed edge and the rear side plate body can be staggered, and an impurity discharging seam is formed between the collapsed edge and the rear side plate body. According to the down suction pipeline structure of the delinter, the impurity rate of collected down is relatively low.

Description

Technical Field

[0001] The utility model relates to a down-stripping machine down-stripping pipeline structure and also relates to a down-stripping machine equipped with the down-stripping machine down-stripping pipeline structure. Background Art

[0002] The lint suction pipe is a component used to recover short lint when the lint is stripped inside the lint stripping machine. It should be known that the cotton fibers stripped from cotton seeds by the lint stripping machine are much shorter than the cotton fibers produced by the cotton gin, and are usually called short lint. Short lint has a larger specific surface area than the cotton fibers produced by the cotton gin, and is easier to recover by wind power. The lint suction pipe absorbs the lint by means of negative pressure, and then collects the lint. The basic principle can be seen in Figure 1 The lint suction and collection assembly shown in the figure is well known in the art. The saw cylinder 1 shown in the figure cooperates with the working box of the lint stripping machine to peel off the short lint on the cotton seeds. The lint suction pipe is located on one side of the saw cylinder 1, and the short lint hooked by the saw blade on the saw cylinder 1 is sucked into the lint suction pipe by wind force. Then, the short lint and some impurities with relatively large specific surface area will enter the lint collecting machine 8 through the workshop lint collecting pipe 7 located in the workshop, and air-lint separation will be realized in the lint collecting machine 8, and the induced draft fan 9 will generate negative pressure at the cooperation point of the lint suction pipe and the saw cylinder 1 by means of induced wind.

[0003] Figure 1 and Figure 2 A known lint suction pipe structure is also shown. Although the impurities contained in the cotton seed roll are mostly heavy impurities, there will still be a certain amount of light impurities, such as broken cotton leaves, dust, etc. Although the negative pressure lint suction has a certain wind selection effect, that is, the impurities that cannot be carried by the airflow will be left, and those that can be carried away will be taken away, however, since the negative pressure control itself is not easy, the wind pressure and wind speed control need to have a certain margin to ensure that the short lint is sucked away as much as possible, which also causes some relatively light impurities to be sucked away together. It should be known that when there are more impurities in the short lint, the subsequent short lint cleaning equipment such as the lint cleaning machine will be burdened, and it will also seriously affect the quality of the short lint. Utility Model Content

[0004] The utility model aims to provide a down-stripping machine ...

[0005] According to a first aspect of an embodiment of the utility model, a down stripping machine down suction pipeline structure is provided, comprising a curved pipe portion, the curved pipe portion comprising a centrifugal side structural plate;

[0006] A transverse slit perpendicular to the airflow direction is opened on the centrifugal side structural plate, and the centrifugal side structural plate is divided into a rear side plate body and a front side plate body by the transverse slit;

[0007] The rear part of the front side plate body is provided with a collapsed edge folded outwards to be staggered with the rear side plate body, and a debris removal seam is formed between the collapsed edge and the rear side plate body.

[0008] Optionally, the collapsed edge extends rearwardly and exceeds a radial line of a front side plate edge of the rear side plate body.

[0009] Optionally, the minimum gap between the collapsed edge beyond the front plate edge of the rear plate body and the rear plate body is 5% to 11% of the radial length of the cross-section of the inner cavity of the curved tube portion.

[0010] Optionally, at the rear side of the debris removal seam, a debris removal plate is connected to the outside of the centrifugal side structural plate to block the rear of the debris removal seam.

[0011] Optionally, the angle between the collapsed edge and the tangent line at the bending point where the front side plate is bent to form the tread edge is 13°~17°.

[0012] Optionally, it is suitable for a lint stripping machine having a brush roller, which cooperates with a saw cylinder of the lint stripping machine to transfer the short lint on the saw cylinder to the brush roller;

[0013] The velvet stripping machine velvet suction pipeline structure is located at the rear side of the brush drum and has a front velvet plate and a rear velvet plate;

[0014] Wherein, the lower end of the rear pile plate is connected with an arc plate, the curved pipe portion is formed between the arc plate and the brush roller, and the debris removal seam is arranged on the arc plate.

[0015] Optionally, the front pile plate and the rear pile plate extend upward, wherein a debris removal knife cooperating with the brush roller is provided at the lower edge of the front pile plate.

[0016] Optionally, the debris removal knife cooperates with the middle part of the brush roller; and the position of the debris removal slit is arranged lower than the debris removal knife.

[0017] Optionally, the position of the debris removal slit is located 0.4-0.75r downwardly offset from the axis of the brush roller, wherein r is the large circle radius of the brush roller.

[0018] According to a second aspect of the embodiment of the utility model, a down stripping machine is provided, comprising the down stripping machine down suction pipe structure described in the first aspect of the embodiment of the utility model.

[0019] In the embodiment of the utility model, the provided down stripping machine suction tube structure has a transverse slit on the centrifugal side structural plate of the selected bend. Since a relatively large airflow velocity is generated during down suction, the airflow will have different entrainment capabilities for materials with different specific gravities. At the same time, the airflow carrying short down and impurities will generate centrifugal force at the bend. Under the dual influence of entrainment capability and centrifugal force, materials with different specific gravities will be stratified, with materials with relatively large specific gravities deviating to the centrifugal side, while materials with relatively small specific gravities will be relatively inward, i.e., to the centripetal side. When the airflow carrying short down and impurities moves to the impurity removal slit, part of the impurities on the outer layer will be thrown out, thereby performing a preliminary separation of the short down and impurities, so that the impurity content of the short down obtained in the end can be relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic diagram of a known down absorbing and collecting assembly.

[0021] Figure 2 The present invention is a schematic diagram of a known down suction pipeline structure.

[0022] Figure 3 It is a schematic diagram of the velvet brushing structure applicable to the velvet suction pipe of the velvet stripping machine in the second embodiment.

[0023] Figure 4 It is a schematic diagram of the structure of the down suction pipeline of the down stripping machine in the first embodiment (including an enlarged view of part I).

[0024] Figure 5 It is a schematic diagram of the structure of the down suction pipeline of the down stripping machine in the second embodiment.

[0025] In the figure: 1. Saw cylinder, 2. Upper plate of air nozzle, 3. Lower plate of air nozzle, 4. Side plate of air nozzle, 5. Flange of air nozzle, 6. Flange of pile collecting pipe in workshop, 7. Pile collecting pipe in workshop, 8. Pile collecting machine, 9. Draft fan, 10. Brush roller, 11. Trash removal knife, 12. Front pile channel plate, 13. Rear pile channel plate, 14. Pile suction channel flange, 15. Trash removal seam, 16. Trash dropping plate, 17. Collapsed edge, 18. Trash guiding channel, 19. Arc plate, 20. Rear plate, 21. Trash discharge channel, 22. Front plate. DETAILED DESCRIPTION

[0026] In the technical field of depilation machines, there are definite front, back, left, and right directions, wherein the front-back direction is also called the longitudinal direction, and the left-right direction is also called the transverse direction.

[0027] The delinting machine has the typical characteristics of cotton processing equipment. The installation base of the main components is the wall panels located on the left and right sides of the cotton processing equipment. The left and right wall panels determine the machine spoke, so the horizontal direction is also called the machine spoke direction.

[0028] Regarding the impurity removal of the lint stripping machine, the process is generally that the cotton seeds pass through the rib row at the outlet of the working box and cooperate with the saw cylinder 1 to peel off the short lint on the cotton seeds. The short lint is hooked on the saw teeth of the saw cylinder 1, and some impurities are entangled on the short lint at the same time.

[0029] In some implementations, the velvet stripping machine velvet suction tube structure is arranged at the rear lower side of the saw cylinder 1, such as Figure 1 , Figure 2 and Figure 4 The saw cylinder 1 is also generally provided with a debris removal knife 11, which is located on the upper side of the wind nozzle.

[0030] The wind nozzle is the name of the application scenario of the first embodiment of the utility model. The wind nozzle directly cooperates with the saw tube 1. The impurity removal ability is slightly worse than that of the down stripping machine down suction pipe structure in the second embodiment, and the impurity rate of the collected short down is also relatively high. The down stripping machine down suction pipe structure in the second embodiment is referred to as the down suction pipe in the following text.

[0031] Among them, the wind nozzle is the general structure of the traditional down stripping machine down suction pipeline, which has a typical curved pipe part, such as Figure 4 The pipe section marked with the enlarged view of part I; the down suction pipe is a new down suction pipe structure of a down stripping machine proposed by Shandong Swan Cotton Machinery Co., Ltd., which often needs to be used in conjunction with the brush roller 10. The brush roller 10 is located on the upper rear side of the saw cylinder 1 and is used in conjunction with the saw cylinder 1. The axes of the two are parallel, and the bristles on the brush roller 10 are inserted between the saw blades, generally at least to the root of the saw teeth of the saw blade on the saw cylinder 1, so that the short down hooked on the saw teeth can be transferred to the bristles. Then the wind is used to suck away the short down on the bristles. The corresponding down stripping machine down suction pipe structure is the down suction pipe shown in the second embodiment.

[0032] The velvet suction tube also has a curved tube, but in order to simplify the structure, Figure 5 In the illustrated structure, the lint suction pipe is defined by the curved plate 19 and the brush roller 10. However, in some embodiments, the brush roller 10 can be discarded and the curved pipe part can be constructed by the plate body alone. Figure 5 The structure in which the arc plate 19 and the brush roller 10 cooperate is that the parts are all located in the depilatory machine, and the impurities separated by the depilatory tube can be discharged from the depilatory machine.

[0033] Whether it is the wind nozzle or the velvet suction tube, the width at its entrance is equivalent to the length of the saw cylinder 1 (machine spoke, specifically the width of the saw cylinder 1 in the velvet stripping machine). Therefore, if Figure 4As shown, the tuyere has a tuyere upper plate 2 and a tuyere lower plate 3, and a certain distance is left between the tuyere upper plate 2 and the tuyere lower plate 3, which belongs to the common sense in the field and will not be described here. The left and right sides of the tuyere upper plate 2 and the tuyere lower plate 3 are sealed to form a pipeline structure, and the sealing component is the tuyere side plate 4, so that the two tuyere side plates 4 cooperate with the tuyere upper plate 2 and the tuyere lower plate 3 to determine the specific structure of the tuyere. It should be known that the traditional tuyere itself has a curved pipe part.

[0034] The velvet suction tube is different from the traditional wind nozzle in that it needs to leave a channel for the impurities to fall, but it also has a curved tube part. This has been explained in the previous text and will not be repeated here.

[0035] The above curved pipe part is referred to as the curved pipe part for short. For the convenience of description, although the curved pipe part is not necessarily an arc-shaped curved pipe, it does not affect the understanding of the centrifugal side and the centripetal side by technicians in this field.

[0036] like Figure 4 In the curved pipe part of the tuyere shown in the figure, the upper plate 2 of the tuyere is formed in the curved pipe part, i.e., the centripetal structural plate, and the lower plate 3 of the tuyere is formed in the curved pipe part, i.e., the centrifugal structural plate.

[0037] The principle of separation by centrifugal force has been described in the previous text, and will not be repeated here. The following is an explanation of the modification of the curved pipe portion to achieve the purpose of the utility model.

[0038] Furthermore, a transverse slit perpendicular to the airflow direction is opened on the centrifugal side structural plate. For the convenience of description, the centrifugal side structural plate is divided into a rear side plate body and a front side plate body with the transverse slit as the boundary. The rear side plate body and the front side plate body are only used to make a nominal distinction.

[0039] The front side plate body has a collapsed edge 17 that is folded outward, and the outward here is determined with respect to a reference system such as the inside and outside of the nozzle tube. Since the centrifugal side structural plate is an arc-shaped plate as a whole (including but not limited to a circular arc plate), when there is a collapsed edge 17, the collapsed edge 17 is outwardly floating relative to the plate body portion along the arc-shaped plate direction, so that it can be staggered with the rear side plate body, and then a debris removal seam 15 can be formed between the collapsed edge 17 and the rear side plate body. When the airflow carrying short fluff and impurities passes through the position where the debris removal seam 15 is located, the impurities tend to be on the centrifugal side due to their relatively large specific gravity and relatively small specific surface area, and are easily discharged directly from the debris removal seam 15. This method still belongs to air selection, which can reduce the impurity content of the short fluff collected by the fluff collecting machine 8.

[0040] Since the recovery of short fibers needs to be achieved by suction, the impurity removal gap 15 should not be too large. At the same time, the special bends can be effectively constructed to reduce the impact of negative pressure on impurity removal. Figure 4 and Figure 5In the illustrated structure, the front plate extends backward beyond the radial line of the front edge of the rear plate. It can be seen that the impurity removal slot 15 makes a 180-degree bend relative to the air suction direction, which can effectively reduce the effect of negative pressure on impurity removal and facilitate the discharge of impurities.

[0041] Furthermore, the minimum gap between the collapsed edge 17 extending beyond the front edge of the rear plate and the rear plate is 5% to 11% of the radial length of the inner cross section of the curved tube portion, preferably 8%, thereby minimizing the loss of short fibers while ensuring a relatively high impurity removal rate.

[0042] In order to facilitate the collection of impurities, Figure 4 In the illustrated structure, at the rear side of the impurity removal slot 15, the centrifugal side structural plate is connected to a debris removal plate 16 that blocks the rear of the impurity removal slot 15. The debris removal plate 16 can be set vertically or tilted, but it can block impurities at the rear, thereby controlling the range of impurity scattering.

[0043] The impurity removal plate 16 itself is inclined or includes an inclined portion, which is easy to guide the impurities to control the impurities to flow in a predetermined direction.

[0044] Considering the influence of negative pressure on impurity removal, the collapsed edge 17 is flat, and the angle between the collapsed edge 17 and the tangent line of the bent portion of the front plate body to form the stepped edge 17 is 13° to 17°, so that the impurity removal seam 15 is formed. Figure 4 and Figure 5 The wedge-shaped structure in the filter, with the gap becoming larger as it moves toward the outside, can effectively reduce the impact of negative pressure on impurity removal.

[0045] In the second embodiment, the velvet stripping machine suction duct structure is suitable for a velvet stripping machine having a brush roller 10. Its basic principle has been described in the foregoing text, that is, the brush roller 10 cooperates with the saw cylinder 1 of the velvet stripping machine to transfer the short fluff on the saw cylinder 1 to the brush roller 10, and at least a part of the impurity removal is completed on the brush roller 10 side.

[0046] Furthermore, in Figure 5 In the illustrated structure, the velvet stripping machine velvet suction duct structure is arranged at the rear side of the brush roller 10 , and as mentioned above, the brush roller 10 is located at the rear upper side of the saw cylinder 1 , so the velvet stripping machine velvet suction duct structure is also located at the rear side of the saw cylinder 1 .

[0047] exist Figure 5 In the illustrated structure, the velvet suction tube has a front velvet plate 12 and a rear velvet plate 13; and the lower end of the rear velvet plate 13 is connected with an arc plate 19, the arc plate 19 and the brush roller 10 form the curved tube portion, and the debris removal slit 15 is arranged on the arc plate 19. The arc plate 19 and the brush roller 10 are coaxial, or maintain relatively good coaxiality, so that the curved tube portion as a whole presents a fan-shaped structure.

[0048] Furthermore, the front pile plate 12 and the rear pile plate 13 extend upward, and the upward extension is not required to be vertically upward, but can be obliquely upward. The lower edge of the front pile plate 12 is provided with a debris removal knife 11 that cooperates with the brush roller 10. This is only used to indicate the position, and does not mean that the debris removal knife 11 needs to be installed on the front pile plate 12. The debris removal knife 11 can be installed using a separate crossbeam.

[0049] Figure 5 In the embodiment, the brush roller 10 rotates counterclockwise, and the debris removal knife 11 can remove the heavy debris entangled on the short pile. Although some of the heavy debris will fly into the pile suction pipe, it is easier to be discharged from the debris removal slit 15 due to its large specific gravity.

[0050] From the perspective of position, Figure 5 In the illustrated structure, the debris removal knife 11 cooperates with the middle part of the brush roller 10, which is beneficial to the configuration of the debris removal knife 11. At this time, under the condition that the debris removal knife 11 is tangent to the large circle of the brush roller 10, the debris removal knife 11 is arranged roughly vertically; at the same time, the position of the debris removal seam 15 is arranged lower than the debris removal knife 11, and the lint absorption and debris removal are carried out simultaneously.

[0051] For reference, the position of the debris removal slit 15 is 0.4-0.75r downwardly offset from the axis of the brush roller 10, where r is the radius of the large circle of the brush roller 10. The large circle of the brush roller 10 is the length of the radial line from the end of the bristles on the brush roller 10 to the axis of the brush roller 10.

Claims

1. A down suction pipe structure for a down stripping machine, characterized in that: The invention comprises a curved pipe section, wherein the curved pipe section comprises a centrifugal side structural plate: A transverse slit perpendicular to the airflow direction is opened on the centrifugal side structural plate, and the centrifugal side structural plate is divided into a rear side plate body and a front side plate body by the transverse slit; The rear part of the front side plate body is provided with a collapsed edge folded outwards to be staggered with the rear side plate body, and a debris removal seam is formed between the collapsed edge and the rear side plate body.

2. The down stripping machine down suction pipe structure according to claim 1 is characterized in that: The collapsed edge extends backward and exceeds the radial line of the front side plate edge of the rear side plate body.

3. The down stripping machine down suction pipe structure according to claim 2 is characterized in that: The minimum gap between the collapsed edge beyond the front plate edge of the rear plate body and the rear plate body is 5% to 11% of the radial length of the inner cavity cross section of the curved pipe portion.

4. The down stripping machine down suction duct structure according to any one of claims 1 to 3, characterized in that: At the rear side of the debris removal seam, a debris removal plate shielding the rear of the debris removal seam is connected to the outside of the centrifugal side structural plate.

5. The down stripping machine down suction duct structure according to any one of claims 1 to 3, characterized in that: The angle between the collapsed edge and the tangent line at the bending point where the front side plate is bent to form the step edge is 13° to 17°.

6. The down stripping machine down suction pipe structure according to claim 1, characterized in that: It is suitable for a lint stripping machine with a brush roller, which cooperates with a saw cylinder of the lint stripping machine to transfer the short lint on the saw cylinder to the brush roller; The velvet stripping machine velvet suction pipeline structure is located at the rear side of the brush drum and has a front velvet plate and a rear velvet plate; Wherein, the lower end of the rear pile plate is connected with an arc plate, the curved pipe portion is formed between the arc plate and the brush roller, and the debris removal seam is arranged on the arc plate.

7. The down stripping machine down suction duct structure according to claim 6, characterized in that: The front pile plate and the rear pile plate extend upward, wherein the lower edge of the front pile plate is provided with a debris removal knife matched with the brush roller.

8. The down stripping machine down suction duct structure according to claim 7, characterized in that: The debris removal knife is matched with the middle part of the brush roller; the position of the debris removal slit is arranged lower than the debris removal knife.

9. The down stripping machine down suction duct structure according to claim 8, characterized in that: The position of the debris removal seam is located 0.4~0.75r downward from the axis of the brush roller, where r is the large circle radius of the brush roller.

10. A lint stripping machine, characterized in that: It comprises the down stripping machine down suction duct structure as described in any one of claims 1 to 9.

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