CN223176288U - Doffer cleaning structure of carding machine and carding machine - Google Patents
Doffer cleaning structure of carding machine and carding machineInfo
- Publication number
- CN223176288U CN223176288U CN202421979395.XU CN202421979395U CN223176288U CN 223176288 U CN223176288 U CN 223176288U CN 202421979395 U CN202421979395 U CN 202421979395U CN 223176288 U CN223176288 U CN 223176288U
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- doffer
- carding machine
- cover plate
- lower cover
- defects
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Abstract
The utility model provides a doffer cleaning structure of a carding machine, which comprises a doffer, wherein a doffer inlet is provided with a doffer lower cover plate for supporting a cotton web, a defect removing channel is arranged between the doffer lower cover plate and a doffer outlet, defects on the surface of the doffer centrifugally fall out and enter the defect removing channel, and the doffer cleaning structure also comprises a discharge end arranged in the defect removing channel, and a guide device for collecting and guiding out the defects. The doffer inlet of the doffer is provided with a doffer lower cover plate, so that the dropped cotton net is supported, and the safety is ensured. The doffer lower cover plate and the doffer outlet form an open structure through the defect removing channel, so that the doffer lower cover plate can directly throw out defects on the doffer along with doffer rotation, a guiding device is arranged in the throwing direction of the defects of the doffer, the thrown out defects are collected and guided out, the accumulation of the thrown out defects is effectively avoided, manual cleaning is not needed, the manual work difficulty is reduced, and the working safety of the doffer is improved. The utility model also provides a carding machine.
Description
Technical Field
The utility model relates to the technical field of blowing-carding units in the spinning industry, in particular to a doffer cleaning structure of a carding machine and the carding machine.
Background
The carding machine opens and carding the cotton (chemical fiber) roll sent from the previous working procedure or the oil cotton (chemical fiber) layer supplied by the cotton box, removes impurities, makes all the curled and blocky cotton rings become basically straight single fiber shape, removes broken seeds, impurities and short piles left by the blowing working procedure in the process, integrates cotton strips with certain specification, stores in a cotton cylinder and is used for the drawing working procedure.
As shown in fig. 1, fig. 1 is a schematic structural view of a carding machine in the prior art. The carding machine consists of a cotton feeding box part, a cotton feeding roller part 1 ', a licker-in part, a cylinder 2 ', a movable cover plate part 3 ', a doffer part 4 ', a cotton stripping roller part 5 ', a coiler and the like. During operation, the cotton bundles 6 ' are conveyed to a cotton feeding box through a pipeline, the cotton feeding box outputs continuous, uniform and relatively stable sheet cotton, the sheet cotton enters a cotton feeding roller part 1 ' of a carding machine, then a sheet cotton layer is decomposed into small cotton bundles through a high-speed rotating licker cylinder 2 ', defects (impurities, seed scraps, blades, cotton seed hulls, rope yarns and the like) in the cotton bundles are removed in the decomposition process, when the decomposed cotton bundles 6 ' travel to the nearest point of the licker cylinder 2 ', the cotton bundles 6 ' are grabbed and transferred by a cylinder card clothing with higher speed and more dense needling, the cotton bundles 6 ' enter a cylinder 2 ' working area and are further separated into single fibers, most of defects (short fibers, impurities, tiny dust and neps) are grabbed and removed by a movable cover plate 3 ', fibers on the surface of the cylinder 2 ' are picked up by a doffer wire clothing, the surface of the cylinder 2 ' are transferred by a doffer wire clothing, or a net cage is placed under a net cage (or a net cage is manufactured) after the cotton bundles are grabbed and transferred by a net cage, and the net cage is manufactured.
The doffer cover plate 7 'is arranged below the doffer 4', so that the quality and safety problems in the production process of the carding machine are solved. A plurality of doffer cover plates 7 ' are arranged below the doffer 4', and are pressed together along the working rotation direction of the doffer 4', as shown in fig. 2, and fig. 2 is a doffer structure schematic diagram of the carding machine in fig. 1. The cover plate 7-5 is mounted at the doffer outlet position, the cover plate 7-5 is pressed against the cover plate 7-4, the cover plate 7-4 is pressed against the cover plate 7-3, the cover plate 7-3 is pressed against the cover plate 7-2, the cover plate 7-2 is pressed against the cover plate 7-1, and the cover plate 7-1 is mounted at the doffer inlet position. Five doffer cover plates 7 'have a clearance of about 6mm from the surface of doffer needle teeth 4-1, and doffer cover plates 7' constitute a continuous seal body below the doffer needle cloth surface.
In the prior product structure, during actual production, the doffer rotates clockwise, after the doffer 3 grabs the cotton web, fine impurities and short piles in the cotton web collide with the inner surface of the doffer cover plate and are accumulated under the action of doffer centrifugal force, and part of the cotton web falls onto the doffer cover plate to rub with the doffer cover plate. All these factors can cause the inner surface of the doffer cover plate to become rough and sticky after a period of production and use, and if the doffer cover plate is not removed in time to be cleaned, the operation of the carding machine is unstable, the fluctuation of the weight of raw bars is increased, and the raw bar Uster evenness CV value exceeds the standard. Therefore, the inner surface of the doffer cover plate needs to be inspected irregularly, but the doffer cover plate is removed periodically to clean, so that the workload is large, especially for enterprises with large scale, and when five or sixty carding machines or even seventy carding machines are used in a workshop, the cleaning and maintenance work of the doffer cover plate of the carding machine is difficult to be removed periodically to inspect and clean, the labor intensity of workers is high, and meanwhile, the output and the sliver quality of the carding machine are influenced by the cleaning of the irregular inspection.
On the other hand, the doffer cover plate, the doffer wall plates on two sides and the doffer lower surface form a relatively sealed cavity, when in operation, the boundary layer air flow driven by the doffer rotation can form a local and multi-point high-pressure area in the narrow cavity, unstable pressure can move from the high-pressure area to the low-pressure area in the narrow cavity, and the air flow can inevitably drive fibers on the doffer needle tooth surface in the moving process of the air flow, so that the cotton web on the doffer needle tooth surface becomes uneven in thickness (or new neps are generated), thereby bringing the air flow problem of the doffer rotary boundary layer and the quality problem of the cotton web on the doffer surface.
Therefore, how to improve the product quality stability of the carding machine in the web production process is a problem to be solved by the person skilled in the art.
Disclosure of utility model
In view of the above, the present utility model provides a doffer cleaning structure of a carding machine and a carding machine, so as to improve the product quality stability of the carding machine in the web production process.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The doffer cleaning structure of the carding machine comprises a doffer, wherein a doffer lower cover plate for supporting a cotton web is arranged at a doffer inlet;
A defect removing channel is arranged between the doffer lower cover plate and the doffer outlet, and defects on the doffer surface centrifugally fall off and enter the defect removing channel;
The device also comprises a discharge end arranged on the defect removing channel and a guiding device for collecting and guiding out the defects.
Preferably, in the doffer cleaning structure of the carding machine, the guiding device includes a conveyor belt for receiving the defects, and an air suction pipe arranged at the rear end of the conveyor belt;
The transmission belt is a curtain-shaped transmission belt with the width direction not smaller than the width of the defect removing channel, and the air suction pipeline is provided with an air suction inlet corresponding to the width direction of the transmission belt.
Preferably, in the doffer cleaning structure of the carding machine, the doffer has an open structure from a discharge end of the doffer lower cover plate to the doffer outlet, and the doffer sends the defects into the defect removal channel through the open structure.
Preferably, in the doffer cleaning structure of the carding machine, the doffer lower cover plate includes a group provided at the doffer inlet position.
Preferably, in the doffer cleaning structure of the above carding machine, the doffer is rotatably arranged in a horizontal direction, and the guide-out device is arranged below the doffer.
Preferably, in the doffer cleaning structure of the carding machine, the guiding device includes a curtain-shaped conveyor belt disposed below the doffer, a baffle plate extending from a conveying front end of the curtain-shaped conveyor belt to a tail end of the doffer lower cover plate, and the air suction pipe is disposed at a conveying tail end of the curtain-shaped conveyor belt.
Preferably, in the doffer cleaning structure of the carding machine, the air suction pipe is provided with an air suction inlet arranged on one radial side of the pipe, the conveying tail end of the curtain-shaped conveying belt extends into the air suction inlet, and one axial end of the air suction pipe is connected with an air suction main pipe.
Preferably, in the doffer cleaning structure of the carding machine, an air suction gap of 4-9 mm is arranged between the air suction opening and the surface of the curtain-shaped conveyor belt.
Preferably, in the doffer cleaning structure of the carding machine, the air suction gap is 5mm, and the average negative pressure of the air suction pipeline is-250 pa to-350 pa.
The carding machine comprises a frame, a cylinder and a doffer, wherein the cylinder and the doffer are arranged in the frame and used for conveying a cotton web, and a doffer cleaning structure of the carding machine is arranged below the doffer and mounted on the frame.
The doffer cleaning structure of the carding machine comprises a doffer, wherein a doffer lower cover plate for supporting a cotton web is arranged at a doffer inlet, a defect removing channel is arranged between the doffer lower cover plate and a doffer outlet, defects on the surface of the doffer centrifugally fall out and enter the defect removing channel, and the doffer cleaning structure further comprises a discharge end arranged in the defect removing channel and a guiding device for collecting and guiding out the defects. The doffer inlet of the doffer is provided with the doffer lower cover plate, so that when the carding machine produces high-yield or processes poor raw materials, the doffer lower cover plate at the doffer inlet can support the fallen cotton web, thereby ensuring the safety. Meanwhile, a defect removing channel is arranged between the doffer lower cover plate and the doffer outlet, so that the doffer lower cover plate covers only the doffer inlet, the doffer inlet part is only surrounded between the surface of the doffer and doffer wallboards on the two sides of the doffer, a narrow sealing cavity is prevented from being formed between the doffer inlet and the doffer outlet, local and multi-point high pressure of air flow is prevented from being formed between the doffer and the doffer lower cover plate, the air flow stability between the doffer lower cover plate and the doffer is ensured, and further the thickness uniformity of cotton meshes on the surface of doffer needle teeth is improved.
Further, the doffer lower cover plate and the doffer outlet form an open structure through the defect removing channel, so that the doffer lower cover plate can directly throw out defects on the doffer along with doffer rotation, a guiding device is arranged in the throwing direction of the defects of the doffer, the thrown out defects are collected and guided out, accumulation of the thrown out defects is effectively avoided, manual cleaning is not needed, manual work difficulty is reduced, and doffer work safety is improved.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a prior art carding machine;
FIG. 2 is a schematic view of the doffer structure of the card of FIG. 1;
Fig. 3 is a schematic view of doffer cleaning structure of the carding machine provided by the utility model.
Detailed Description
The utility model discloses a doffer cleaning structure of a carding machine and the carding machine, which improve the product quality stability of the carding machine in the web production process.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 3, fig. 3 is a schematic view of a doffer cleaning structure of the carding machine provided by the utility model.
The embodiment provides a doffer cleaning structure of a carding machine, which comprises a doffer 1, a doffer inlet 5, a doffer lower cover plate 1-1, a defect removing channel and a guiding device, wherein the doffer lower cover plate 1-1 is used for supporting a cotton web, the defect removing channel is arranged between the doffer lower cover plate 1-1 and a doffer outlet, the defect on the surface of the doffer 1 centrifugally falls into the defect removing channel 1-2, the guiding device is arranged at the discharging end of the defect removing channel 1-2 and is used for collecting and guiding out the defects.
The doffer inlet of the doffer 1 is provided with the doffer lower cover plate 1-1, so that when the carding machine is high in yield or is used for processing poor raw materials, the doffer lower cover plate 1-1 at the doffer inlet can be used for supporting the dropped cotton net, and the safety is ensured. Meanwhile, by combining the continuous working state of the carding machine in the production process, the daily operation time can be longer than 20 hours, doffer lower cover plate 1-1 is arranged, doffer dropping cotton web falls on doffer lower cover plate 1-1 when the carding machine is in doffer dropping, and when a car blocking worker can timely find and clear, the more the cotton web is prevented from accumulating on the carding machine frame bottom plate 4 below doffer 1, the larger cotton web bundles are prevented from being accumulated to generate, the stacked cotton web bundles are effectively prevented from being grasped by doffer needle teeth 3, the sliver quality of the carding machine is prevented from being influenced, the problem that the large cotton web enters the vicinity of a cylinder-doffer gauge minimum point again along with doffer 1 rotation is avoided, the phenomenon that cylinder (or doffer) needle cloth is damaged is avoided, and even the car is broken is avoided.
Meanwhile, a defect removing channel 1-2 is arranged between the doffer lower cover plate 1-1 and the doffer outlet, so that the doffer lower cover plate 1-1 is only covered on the part close to the doffer inlet 5, the surface of the doffer 1 and the doffer wall plates on the two sides of the doffer lower cover plate 1-1 are only covered on the part close to the doffer inlet 5, a narrow sealing cavity is prevented from being formed between the doffer inlet 5 and the doffer outlet, local and multi-point high pressure of air flow is prevented from being formed between the doffer 1 and the doffer lower cover plate 1-1, the air flow stability between the doffer lower cover plate 1-1 and the doffer 1 is ensured, and further the thickness uniformity of cotton meshes on the surface of doffer needle teeth is improved.
Further, the doffer lower cover plate 1-1 and the doffer outlet are provided with the defect removing channel 1-2, so that the doffer lower cover plate 1-1 forms an open structure between the discharge end and the doffer outlet, a small amount of cotton net, short fiber, impurities, dust and other defects on the doffer 1 can be directly thrown out along with doffer rotation, a guiding device is arranged in the throwing-out direction of the defects of the doffer 1, the thrown out defects are collected and guided out, the accumulation of the thrown out defects is effectively avoided, manual cleaning is not needed, the manual work difficulty is reduced, and the working safety of the doffer is improved.
In one embodiment, the guiding device comprises a conveyor belt 7 for receiving the defects, and an air suction pipeline 10 arranged at the rear end of the conveyor belt 7, wherein the conveyor belt 7 is a curtain-shaped conveyor belt with the width direction not smaller than the width of the defect removing channel, and the air suction pipeline 10 is provided with an air suction inlet corresponding to the width direction of the conveyor belt 7. The doffer 1 is a roller structure transversely arranged in the axis direction, the lower part of the doffer 1 is close to the frame, and the defect removing channel is arranged in the frame and is positioned below the doffer 1. The adaptive doffer 1 has a certain width on a cylindrical structure, a conveying belt 7 with a curtain-shaped structure is arranged on the guiding device, and the defects thrown by the doffer are received through the surface of the conveying belt.
In this embodiment, the driving belt 7 is preferably a curtain-shaped driving belt 7 with a flat curtain structure, and the width of the curtain-shaped driving belt 7 is not smaller than the axial length of Yu Daofu a1 so as to fully receive the defect thrown by the doffer 1. The collected defects are continuously conveyed in a form of the driving belt 7, an air suction pipeline 10 is arranged at the rear end of the driving belt 7, and the air suction pipeline 10 is provided with an air suction inlet corresponding to the width of the driving belt 7, so that all the defects received in the width direction of the driving belt 7 can be sucked out, the defects are prevented from being adhered and piled on the surface of the continuously conveyed driving belt, and the defects below the doffer are cleaned. The surface of the conveyor belt 7 is of a planar structure and has a width corresponding to the axial length of the doffer 1, so that the conveyor belt is of a flat curtain structure on the whole, and has the function of effectively receiving defects.
In one embodiment, the doffer 1 is in an open structure from the discharge end of the doffer lower cover plate 1-1 to the doffer outlet, and the doffer 1 sends the defects into the defect removing channel through the open structure. It can be understood that the doffer lower cover plate 1-1 is arranged at the doffer inlet 5, so that the supporting function on the cotton web conveyed by the doffer 1 can be realized. In this embodiment, the doffer lower cover plate 1-1 preferably includes a set of doffer inlet positions, i.e., the doffer lower cover plate is provided with one piece, at a position close to the doffer inlet 5.
The doffer lower cover plate 1-1 and the doffer outlet are arranged to be open structure, and the doffer lower cover plate is not arranged. Then, the doffer 1 between the discharge end of the doffer lower cover plate 1-1 and the doffer outlet is in an open structure, and after the doffer 1 is rotated and separated from the doffer lower cover plate 1-1, an inlet of a defect removing channel 1-2 for removing defects is formed between the doffer lower cover plate 1-1 and the doffer outlet, so that the doffer 1 obtains a larger defect removing length, and the defect removing capability is improved.
In one embodiment, the doffer 1 is rotatably arranged in a horizontal direction, and the guiding device is arranged below the doffer.
Further, the guiding device comprises a curtain-shaped conveyor belt 7 arranged below the doffer 1, a baffle plate 9 extending from the conveying front end of the curtain-shaped conveyor belt 7 to the tail end of the doffer lower cover plate 1-1, and an air suction pipeline 10 arranged at the conveying tail end of the curtain-shaped conveyor belt 7.
A doffer lower cover plate 1-1 is arranged at the doffer inlet 5, and the doffer lower cover plate is not arranged between the doffer lower cover plate 1-1 and the doffer outlet, so that the lower surface of the doffer 1 is completely in an exposed state. The guiding device arranged below the doffer realizes a self-cleaning function, the guiding device consists of a driving roller 6, a curtain-shaped driving belt 7, a driven roller 8, a baffle 9, an air suction pipeline 10 and the like, the width direction of the curtain-shaped driving belt 7 is basically the same as that of the doffer 1 of the carding machine, in a preferred structure, the width length of the curtain-shaped driving belt is 600mm, the surface of the flat curtain driving belt 7 of the guiding device is about 15mm away from the bottom plate of the carding machine frame, and two ends of the driving roller 6 and the driven roller 8 are fixed on the floor 4 of the carding machine frame through bearing seats.
When the carding machine works, after the doffer of the carding machine starts to move, the guiding-out device obtains a control signal to drive the driving roller 6 to start to rotate so as to drive the curtain-shaped conveying belt 7 to slowly move. The doffer 1 rotates at a high speed, and the defects (a small amount of cotton net, short fiber, impurity, tiny dust, etc.) on the doffer surface fall off under the action of the rotation centrifugal force, fall onto the curtain-shaped conveyor belt 7, and slowly move towards the rear end of the conveyor along with the curtain-shaped conveyor belt 7.
The curtain conveyor 7 is fixed on the bottom plate 4 of the frame in a flat curtain structure for arrangement, and a baffle 9 is arranged to shield the discharged defects from the discharge end of the doffer lower cover plate 1-1 in consideration of the uncertainty of the direction of the defects thrown out by the doffer 1 so that the defects fall on the curtain conveyor. At the transmission end of the curtain-shaped conveyor belt 7, the suction pipeline 10 is arranged and provides negative pressure for adsorbing the defects on the curtain-shaped conveyor belt 7, so that the defects close to the doffer outlet position can be adsorbed by negative pressure, the defects are limited in the area between the baffle 9 and the suction pipeline 10, and the defects are effectively collected.
In this embodiment, the air suction pipe 10 is provided with an air suction port arranged at one radial side of the pipe, the conveying end of the curtain-shaped conveying belt 7 stretches into the air suction port, and one axial end of the air suction pipe 10 is connected with an air suction main pipeline.
Further, an air suction gap of 4-9 mm is arranged between the air suction opening and the surface of the curtain-shaped conveyor belt 7. Preferably, the suction gap is 5mm, and the average negative pressure of the suction pipeline 10 is-250 pa to-350 pa.
The suction pipeline 10 is covered at the position of the driving roller 6 in a small surrounding state by the suction inlet, the upper opening and the lower opening of the suction inlet are provided with a gap of 4-9mm, preferably a gap of 5mm, a suction main pipeline is arranged on one side of the suction pipeline 10, the suction main pipeline is of a hose structure and is connected with a cotton collecting main pipe of a carding machine, the average negative pressure in the suction pipeline 10 is minus 250Pa to minus 350Pa (the dust filtering negative pressure is influenced by the total dust filtering negative pressure of the carding machine), and when the fallen defects move to the position along with the curtain-shaped conveying belt 7, the fallen defects enter a dust filtering unit through the dust collecting main pipe of the carding machine under the action of the dust filtering negative pressure of the suction pipeline 10, so that the self-cleaning effect is achieved.
By arranging the guiding device below the doffer 1 and combining the guiding device with the doffer lower cover plate 1-1 positioned at the doffer inlet 5 side, the working safety of the carding machine can be effectively improved.
And 1, releasing the space, stabilizing the air flow, and keeping the state of the cotton web on the surface of the doffer card clothing of the carding machine stable. Only one doffer cover plate 1-1 at the doffer inlet position of the carding machine is reserved, the other doffer lower cover plates are removed, and boundary layer air flow generated when the doffer rotates is fully released, so that the cotton web on the doffer surface cannot be influenced by the boundary layer air flow.
2, The periodic cleaning and maintenance work of the inner surface of the doffer lower cover plate is solved, and the labor intensity of workers is reduced. In the use process, the inner surfaces of the 2-3 cover plates at the lowest part of the doffer of the carding machine are most easily dirty. The doffer of the carding machine is provided with the lower cover plate, cotton or polyester fibers are processed, the doffer lower cover plate needs to be detached for cleaning once in average 1 month to 1 half month, and if the raw materials are poor, the cleaning period can be shorter. By adopting the guiding device, only one doffer lower cover plate 1-1 at the doffer inlet position is arranged, so that the maintenance work of cleaning once after being disassembled for 1 year can be realized, and the labor intensity is greatly reduced.
And 3, increasing the probability of removing defects such as fine impurities, short velvet, tiny dust and the like, and improving the sliver quality of the carding machine. The web transferred to the doffer surface is fully carded and has a high degree of fibrillation, and some unaddressed defects are transferred to the doffer card clothing, which are relatively easy to remove under the action of centrifugal force. After the lower end of the doffer 1 is in an open structure and is arranged opposite to the guiding-out device, a part of defects can be taken out under the action of the rotating centrifugal force of the doffer, and the sliver quality of the carding machine is improved.
4, Safety function, solving the potential safety hazard of carding machine caused by doffer 1 net falling and accumulation. After the carding machine is provided with only one doffer cover plate, doffers can drop a small amount of net in the continuous production process, the phenomenon of doffers is accumulated to be more and less, and the fallen cotton nets are fluffy, so that the cotton nets are easily accumulated to form a group at the bottom plate position below the doffer 1, and when the fibers are accumulated on the surface of needle teeth below the doffer, the fibers are caught by doffer card clothing, so that serious consequences can be generated. Through setting up the cover plate under the doffer of doffer entry 5 department and export device complex doffer structure, just can not appear the accumulational condition of fibre, solved the carding machine and demolishd the potential safety hazard of doffer cover plate.
Based on the doffer cleaning structure of the carding machine provided by the embodiment, the utility model also provides the carding machine, the frame, the cylinder and the doffer which are arranged in the frame and used for conveying the cotton web, and the doffer cleaning structure of the carding machine provided by the embodiment which is arranged on the frame is arranged below the doffer.
Since the doffer cleaning structure of the carding machine of the above embodiment is adopted, the advantage of the doffer cleaning structure of the carding machine is that the carding machine refers to the above embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The doffer cleaning structure of the carding machine is characterized by comprising a doffer, wherein a doffer lower cover plate for supporting a cotton web is arranged at the doffer inlet;
A defect removing channel is arranged between the doffer lower cover plate and the doffer outlet, and defects on the doffer surface centrifugally fall off and enter the defect removing channel;
The device also comprises a discharge end arranged on the defect removing channel and a guiding device for collecting and guiding out the defects.
2. The doffer cleaning structure of carding machine according to claim 1, wherein said guiding device comprises a conveyor belt for receiving said defects, and an air suction duct provided at a rear end of the conveyor belt;
the conveyor belt is a curtain-shaped conveyor belt with the width direction not smaller than the width of the defect removing channel, and the air suction pipeline is provided with an air suction inlet corresponding to the width direction of the conveyor belt.
3. A doffer cleaning structure of a card in accordance with claim 2, wherein said doffer is of an open structure from a discharge end of said doffer lower cover plate to said doffer outlet, said doffer feeding said defects into said defect removal channel from said open structure.
4. A doffer cleaning structure in a carding machine according to claim 3, wherein said doffer lower cover plate includes a set of doffer inlet locations.
5. A doffer cleaning structure of a card according to claim 3, wherein the doffer is rotatably arranged in a horizontal direction, and the guide-out device is arranged below the doffer.
6. The doffer cleaning structure of a carding machine according to claim 5, wherein the guide-out device includes the curtain conveyor belt provided below the doffer, a baffle plate extending from a conveying front end of the curtain conveyor belt to a distal end of the doffer lower cover plate, and the suction duct is provided at a conveying distal end of the curtain conveyor belt.
7. The doffer cleaning structure of carding machine according to claim 6, wherein the suction pipe has a suction inlet opened at one side of the radial direction of the pipe, the conveying end of the curtain-shaped conveyor belt extends into the suction inlet, and one axial end of the suction pipe is connected with a suction main pipe.
8. The doffer cleaning structure of a carding machine according to claim 7, wherein an air suction gap of 4-9 mm is provided between the air suction port and the surface of the curtain conveyor belt.
9. The doffer cleaning structure of carding machine according to claim 8, wherein the suction gap is 5mm, and the average negative pressure of the suction pipeline is-250 pa to-350 pa.
10. A carding machine comprising a frame, a cylinder and a doffer which are arranged in the frame for conveying a cotton web, wherein a doffer cleaning structure of the carding machine as claimed in any one of claims 1 to 9 is arranged below the doffer and is arranged on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421979395.XU CN223176288U (en) | 2024-08-15 | 2024-08-15 | Doffer cleaning structure of carding machine and carding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421979395.XU CN223176288U (en) | 2024-08-15 | 2024-08-15 | Doffer cleaning structure of carding machine and carding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223176288U true CN223176288U (en) | 2025-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202421979395.XU Active CN223176288U (en) | 2024-08-15 | 2024-08-15 | Doffer cleaning structure of carding machine and carding machine |
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| Country | Link |
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| CN (1) | CN223176288U (en) |
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2024
- 2024-08-15 CN CN202421979395.XU patent/CN223176288U/en active Active
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