Dust removal device for flax blank production

Abstract

The utility model relates to textile production equipment technical field especially is a kind of dust removal device for flax grey cloth production, including the positioning frame of the downstream upper side of the flax grey cloth discharge end fixedly arranged in workshop, the positioning frame is extended along the width direction of flax grey cloth and is arranged, dust removal mechanism is installed in the bottom of the positioning frame, control mechanism is arranged in the rear side of the dust removal mechanism, the control mechanism is used to control the angle of the dust suction port of the dust removal mechanism and the flax grey cloth horizontally arranged, lifting mechanism is installed in the top of the positioning frame, collecting assembly is connected in the outside of the positioning frame, and the collecting assembly is located the outside of the flax grey cloth and is spaced apart from it and is arranged. The utility model can flexibly adjust the distance between dust removal mechanism and the surface of grey cloth according to the actual thickness of flax grey cloth by the cooperation adjustment of lifting mechanism and control mechanism, and the relative included angle of negative pressure dust suction port and grey cloth is accurately controlled according to the conveying speed of grey cloth.

Description

Technical Field

[0001] This utility model relates to the field of textile production equipment technology, and in particular to a dust removal device for flax fabric production. Background Technology

[0002] During the production of linen fabric, impurities such as fiber fragments and dust easily adhere to its surface. If these are not thoroughly removed, they will directly affect the processing precision of subsequent dyeing and printing processes, leading to problems such as color variations and defects in the finished fabric. Therefore, dust removal is a crucial preliminary step in the production of linen fabric.

[0003] Traditional dust removal methods often rely on manual sweeping or simple blowing devices, which are inefficient and incomplete in cleaning, making them unsuitable for the needs of continuous industrial production.

[0004] To improve this situation, some related technologies have emerged. For example, a dust removal device for raw fabric disclosed in patent application number CN202022746598.2 mainly achieves semi-automatic dust removal through a structure that uses a motor-fan to drive airflow, brushes on a support plate for cleaning, and a collection box for dust collection.

[0005] However, it still has obvious shortcomings in actual use: Firstly, the fixed installation of the brush cannot be adapted to linen fabrics of different thicknesses and widths, and the single airflow from the top fan is insufficient to remove dust from the bottom and folds of the fabric, resulting in cleaning dead spots. Secondly, the open structure of the ventilation holes in the collection box allows fine dust to easily escape through the ventilation chamber. In addition, dust can easily leak out from the gaps during cleaning, causing secondary pollution.

[0006] Based on this, designing a dust removal device for the production process of flax fabric that is highly adaptable, thoroughly collects dust, and prevents secondary pollution is of urgent practical significance. Utility Model Content

[0007] To solve one of the aforementioned technical problems, the present invention provides a dust removal device for flax fabric production, comprising a positioning frame fixedly installed above the downstream end of the flax fabric discharge end in the workshop. The positioning frame extends along the width direction of the flax fabric. A dust removal mechanism is installed at the bottom of the positioning frame, with the bottom of the dust removal mechanism facing towards the upper surface of the flax fabric. A positioning control mechanism is provided at the rear of the dust removal mechanism, which controls the angle between the dust suction port of the dust removal mechanism and the horizontally positioned flax fabric. A lifting mechanism is installed at the top of the positioning frame, with the bottom of the lifting mechanism passing through the positioning frame and extending below it before connecting to the top of the dust removal mechanism. A collection component is connected to the outside of the positioning frame, located on the outside of the flax fabric and spaced apart from it.

[0008] Based on any of the above technical solutions, a further optimization is made as follows: the lifting mechanism includes several synchronous cylinders that are vertically arranged above the flax fabric and spaced apart along its length. The top of each synchronous cylinder is fixed to the bottom of the positioning frame, and the bottom of the telescopic end of each synchronous cylinder is fixed to a horizontally arranged lifting seat. The lifting seat extends along the width of the flax fabric and its inner and outer ends extend to the outside of the flax fabric. Welded ear seats are fixedly installed at the inner and outer ends of the bottom of the lifting seat, and the top two ends of the dust removal mechanism are movably hinged in the ear holes of the corresponding welded ear seats.

[0009] Based on any of the above technical solutions, a further optimization is made as follows: the dust removal mechanism includes a dust collection chamber vertically arranged above the linen fabric. The dust collection chamber is arranged along the width direction of the linen fabric, and both ends of the chamber extend to the outer side of the linen fabric. A negative pressure dust collection port is provided at the bottom of the dust collection chamber facing the upper surface of the linen fabric. The rear end of the dust collection chamber is vertically arranged, and a negative pressure fan is fixedly installed in its middle. The inlet end of the negative pressure fan is connected to the negative pressure dust collection chamber inside the dust collection chamber. The dust collection port of the negative pressure fan is connected to the inlet end of the collection component through a corrugated bend connector. Connecting lugs are fixedly installed at the inner and outer ends of the middle of the dust collection chamber. A rotating shaft is fixedly connected between the two connecting lugs. Both ends of the rotating shaft are movably hinged in the ear holes of the welding lugs on their corresponding sides. A middle lug is fixedly welded to the middle of the rear side of the dust collection chamber. The middle lug is movably hinged to the left end of the control mechanism on its rear side.

[0010] Based on any of the above technical solutions, a further optimization is made as follows: the control mechanism includes a telescopic control electric cylinder, the upper end of which is movably hinged in the ear hole of the upper ear seat, the top of the upper ear seat is fixed to the bottom of the positioning frame, and the end of the piston rod at the lower end of the telescopic control electric cylinder is movably hinged in the ear hole of the middle ear seat. When the telescopic control electric cylinder extends or retracts, it can drive the dust collection chamber to swing around the fixed axis of the rotating shaft.

[0011] Based on any of the above technical solutions, a further optimization is made: the negative pressure suction port of the dust collection chamber adopts an inverted cone-shaped structure and its bottom is connected to the interior of the negative pressure suction chamber.

[0012] Based on any of the above technical solutions, a further optimization is made as follows: the collection assembly includes a dust collection cylinder vertically fixed on the workshop floor outside the flax fabric, exhaust components are provided on both sides of the middle part of the dust collection cylinder, a sealing cover is installed on the top of the dust collection cylinder, a connecting pipe is installed on the top of the sealing cover, and the connecting pipe is connected to the dust removal port of the negative pressure fan through a corrugated bend.

[0013] Based on any of the above technical solutions, a further optimization is made as follows: the exhaust component includes exhaust pipes disposed on both sides of the middle part of the dust collection cylinder, quick-release connectors are threadedly screwed onto the port of each exhaust pipe, and filter cloth is disposed at the port of each quick-release connector.

[0014] Based on any of the above technical solutions, a further optimization is made: each of the aforementioned synchronous cylinders adopts a synchronous lifting hydraulic cylinder and its extension and retraction are controlled by an external hydraulic pump station.

[0015] Based on any of the above technical solutions, a further optimization is made by sealing and installing tempered glass at the window position in the middle of the outer side of the dust collection cylinder for observing the amount of dust collected inside.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the coordinated adjustment of the lifting mechanism and the control mechanism (the telescopic control cylinder adjusts the angle), can flexibly adjust the distance between the dust removal mechanism and the upper surface of the flax fabric according to the actual thickness of the flax fabric, and accurately control the relative angle between the negative pressure dust suction port and the flax fabric according to the flax fabric conveying speed, effectively adapting to the dust removal needs of flax fabrics of different specifications and different production rhythms. 2. This utility model relies on the large-volume negative pressure chamber design of the dust collection chamber to reduce airflow resistance. Combined with the characteristics of the large opening end of the inverted cone-shaped negative pressure dust collection port to expand the range and the small opening end to concentrate the airflow, it can not only cover the width of the fabric without cleaning dead corners, but also enhance the negative pressure intensity at the dust collection port. At the same time, the control mechanism can extend the effective dust collection time of the same part of the fabric. Under the dual effect, the removal rate of fiber debris and dust on the surface of the linen fabric is significantly improved. 3. This utility model intercepts residual fine dust in the air by using the filter cotton cloth at the exhaust pipe port of the collection component. The spacing between the dust collection cylinder and the linen fabric avoids vibration interference and dust scattering. The sealing design of each connection part (such as the corrugated bend joint and the sealing cover) prevents dust leakage. At the same time, the tempered glass observation window makes it easy to monitor the amount of dust collected in real time and clean it in time. It avoids secondary pollution in the dust removal process in all aspects and protects the workshop production environment and the health of operators. 4. This utility model adopts quick-release connector pipe to realize convenient disassembly and assembly of filter cotton cloth, and maintenance can be completed without disassembling the exhaust pipe; the synchronous lifting hydraulic cylinder has strong anti-pollution ability and is suitable for the environment with many fiber impurities in the workshop; the corrugated bend can prevent water vapor condensation in the pipeline from causing impurities to clump and blockage, significantly reducing the difficulty of device maintenance and the frequency of downtime. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0018] Figure 1 This is a side view of the structure of the present invention in use.

[0019] Figure 2 This is a rear view structural diagram of the present invention in use.

[0020] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] In the diagram, 1. Positioning frame; 2. Synchronizing cylinder; 3. Lifting seat; 4. Welding lug; 5. Dust collection chamber; 6. Negative pressure dust collection port; 7. Negative pressure fan; 8. Negative pressure dust collection chamber; 9. Corrugated bend connector; 10. Connecting lug; 11. Rotating shaft; 12. Middle lug; 13. Telescopic control electric cylinder; 14. Upper lug; 15. Piston rod; 16. Tempered glass; 17. Dust collection cylinder; 18. Sealing cover; 19. Connecting pipe; 20. Corrugated bend; 21. Exhaust pipe; 22. Quick-release connector pipe; 23. Filter cotton cloth; 24. Linen fabric; 25. Workshop floor. Detailed Implementation

[0022] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-3 As shown in the image.

[0023] Example 1: A dust removal device for flax fabric production includes a positioning frame 1 fixedly installed above the downstream end of the flax fabric discharge end in the workshop. The positioning frame 1 extends along the width direction of the flax fabric. A dust removal mechanism is installed at the bottom of the positioning frame 1, with the bottom of the dust removal mechanism facing towards the upper surface of the flax fabric. A positioning control mechanism is provided on the rear side of the dust removal mechanism to control the angle between the dust suction port of the dust removal mechanism and the horizontally positioned flax fabric. A lifting mechanism is installed at the top of the positioning frame 1, with the bottom of the lifting mechanism passing through the positioning frame 1 and extending below it to connect with the top of the dust removal mechanism. A collection component is connected to the outside of the positioning frame 1, and the collection component is located on the outside of the flax fabric and spaced apart from it.

[0024] Before using this device, the first step is device installation and positioning: Position the positioning frame 1 fixedly above and downstream of the flax fabric discharge end in the workshop, extending along the width of the flax fabric. The positioning frame 1 serves as the reference point for fixing the entire dust removal device used in flax fabric production. The second step is dust removal preparation and adjustment: Start the lifting mechanism, controlling the lower end of the lifting mechanism to extend and retract, causing the dust removal mechanism connected to its top to move vertically. This allows the bottom negative pressure suction port 6 of the dust removal mechanism to move closer to or further away from the horizontally conveyed flax fabric surface until it is adjusted to fit the current fabric thickness. The initial suction distance; the third step, dynamic adaptation and adjustment: according to the actual conveying speed of the flax fabric, control the extension and retraction of the control mechanism, adjust the relative angle between the negative pressure suction port 6 of the dust removal mechanism and the flax fabric, ensure that the negative pressure suction port 6 can be continuously set on the surface of the fabric during the fabric conveying process, and extend the effective suction time of the same part; the fourth step, dust removal and collection: after the dust removal mechanism is started, it adsorbs the impurities and dust on the surface of the fabric. The adsorbed impurities and dust are transported to the outer collection component through the dust removal mechanism. The collection component temporarily stores the impurities and dust, waiting for subsequent centralized cleaning.

[0025] Based on any of the above technical solutions, a further optimization is made as follows: the lifting mechanism includes several synchronous cylinders 2 that are vertically arranged above the flax fabric and spaced apart along its length. The top of each synchronous cylinder 2 is fixed to the bottom of the positioning frame 1, and the bottom of the telescopic end of each synchronous cylinder 2 is fixed to a horizontally arranged lifting seat 3. The lifting seat 3 extends along the width of the flax fabric and its inner and outer ends extend to the outside of the flax fabric. Welded ear seats 4 are fixedly installed at the inner and outer ends of the bottom of the lifting seat 3, and the top two ends of the dust removal mechanism are movably hinged in the ear holes of the corresponding welded ear seats 4.

[0026] In this scheme, several synchronous cylinders 2 are vertically arranged above the flax fabric and spaced apart along the length of the flax fabric. The top of each synchronous cylinder 2 is fixed to the bottom of the positioning frame 1, and the bottom of the telescopic end of each synchronous cylinder 2 is fixed to the horizontally arranged lifting seat 3. Then, welding lugs 4 are fixedly installed at the inner and outer ends of the bottom of the lifting seat 3, and the top ends of the dust removal mechanism are respectively hinged to the lugs of the corresponding welding lugs 4. When it is necessary to adjust the height of the dust removal mechanism, the synchronous cylinders 2 are controlled to extend and retract synchronously (the telescopic ends extend or retract). The telescopic ends of the synchronous cylinders 2 drive the lifting seat 3 to move vertically. The lifting seat 3 drives the hinged dust removal mechanism to move up and down synchronously through the welding lugs 4, so as to adjust the distance between the dust removal mechanism and the upper surface of the flax fabric.

[0027] It should be noted that: using several synchronous cylinders 2 and distributing them at intervals along the length of the flax fabric ensures that the lifting seat 3 is subjected to uniform force, preventing the dust removal mechanism from being higher on one side and lower on the other, ensuring that the distance between the dust removal mechanism and the surface of the fabric is consistent, and improving the uniformity of dust removal; the lifting seat 3 extends along the width of the flax fabric and extends to the outside of the fabric at both ends, providing sufficient installation space for the welding lugs 4 and avoiding contact interference between the lifting seat 3 and the fabric; the dust removal mechanism and the welding lugs 4 are connected by a movable hinge, providing freedom for the subsequent control mechanism to adjust the angle of the dust removal mechanism and avoiding conflict between the lifting mechanism and the control mechanism; the synchronization characteristics of the synchronous cylinders 2 can be achieved through an external control system (such as a hydraulic pump station), with high adjustment accuracy.

[0028] Based on any of the above technical solutions, a further optimization is made as follows: the dust removal mechanism includes a dust collection chamber 5 vertically arranged above the linen fabric. The dust collection chamber 5 is arranged along the width direction of the linen fabric, with both ends extending to the outer side of the linen fabric. A negative pressure suction port 6 is provided at the bottom of the dust collection chamber 5 facing the upper surface of the linen fabric. The rear end of the dust collection chamber 5 is vertically arranged, and a negative pressure fan 7 is fixedly installed in its middle. The inlet end of the negative pressure fan 7 is connected to the negative pressure suction chamber 8 inside the dust collection chamber 5. The dust collection port of the negative pressure fan 7 is connected to the inlet end of the collection component through a corrugated elbow joint 9. Connecting lugs 10 are fixedly installed at both the inner and outer ends of the middle part of the dust collection chamber 5. A rotating shaft 11 is fixedly connected between the two connecting lugs 10. Both ends of the rotating shaft 11 are movably hinged in the ear holes of the welding lugs 4 on their corresponding sides. A middle lug 12 is fixedly welded to the middle of the rear side of the dust collection chamber 5. The middle lug 12 is movably hinged to the left end of the control mechanism on its rear side.

[0029] It should be noted that: when the vacuuming action is performed, the negative pressure fan 7 is started. The negative pressure fan 7 draws air from the negative pressure suction chamber 8 inside the vacuum chamber 5 through the inlet end, so that the negative pressure suction chamber 8 forms a negative pressure. Under the action of negative pressure, the negative pressure suction port 6 adsorbs impurities and dust on the surface of the linen fabric. The impurities and dust enter the negative pressure suction chamber 8 through the negative pressure suction port 6. The negative pressure fan 7 transports the impurities and dust in the negative pressure suction chamber 8 to the corrugated bend joint 9 through the dust removal port. The corrugated bend joint 9 guides the impurities and dust into the collection component. When the control mechanism extends or retracts, the control mechanism pushes or pulls the middle ear seat 12. The vacuum chamber 5 rotates around the rotating shaft 11 (fixed by the connecting ear seat 10) in the ear hole of the welded ear seat 4, so as to realize the angle adjustment between the negative pressure suction port 6 and the fabric.

[0030] The negative pressure suction port 6 is located at the bottom of the suction chamber 5 and faces the upper surface of the fabric. Combined with the negative pressure distribution characteristics of the chamber, the negative pressure at the suction port is more concentrated, enhancing the adsorption capacity for fine fiber impurities. The corrugated bend joint 9 is flexible and can adapt to the positional changes of the suction chamber 5 during angle adjustment, avoiding breakage or sealing failure caused by rigid pipe connection and ensuring the sealing of the impurity conveying channel. The hinged fit between the rotating shaft 11 and the welded ear 4, and the hinged fit between the middle ear 12 and the control mechanism, provide bidirectional rotational freedom for the suction chamber 5, satisfying both the up-and-down movement driven by the lifting mechanism and the angle adjustment driven by the control mechanism, resulting in strong structural compatibility.

[0031] Based on any of the above technical solutions, a further optimization is made as follows: the control mechanism includes a telescopic control cylinder 13, the upper end of which is movably hinged in the ear hole of the upper ear seat 14, the top of the upper ear seat 14 is fixed to the bottom of the positioning frame 1, and the end of the piston rod 15 at the lower end of the telescopic control cylinder 13 is movably hinged in the ear hole of the middle ear seat 12. When the telescopic control cylinder 13 extends or retracts, it can drive the dust collection chamber 5 to swing around the fixed axis of the rotating shaft 11.

[0032] It should be noted that when it is necessary to adjust the angle between the negative pressure suction port 6 of the suction chamber 5 and the linen fabric, the telescopic control cylinder 13 is activated to control the extension or retraction of its piston rod 15. When the piston rod 15 extends, it pushes the middle ear seat 12 to move away from the positioning frame 1, causing the suction chamber 5 to swing around the rotating shaft 11 (the rotating shaft 11 that connects the ear seat 10 and the welded ear seat 4) in the direction of fabric conveying, increasing the angle between the negative pressure suction port 6 and the fabric. When the piston rod 15 retracts, it pulls the middle ear seat 12 to move closer to the positioning frame 1, causing the suction chamber 5 to swing around the rotating shaft 11 away from the direction of fabric conveying, decreasing the angle between the negative pressure suction port 6 and the fabric. By controlling the extension and retraction of the piston rod 15, the swing angle of the suction chamber 5 can be precisely adjusted, thereby controlling the relative angle between the negative pressure suction port 6 and the fabric.

[0033] Based on any of the above technical solutions, a further optimization is made: the negative pressure suction port 6 of the dust collection chamber 5 adopts an inverted cone-shaped structure and its bottom is connected to the interior of the negative pressure suction chamber 8.

[0034] It should be noted that when the negative pressure fan 7 is started to create negative pressure in the negative pressure suction chamber 8, the large opening of the inverted cone structure can expand the contact area with the surface of the fabric, bringing a larger range of impurities and dust from the fabric surface into the suction range. At the same time, the diameter of the inverted cone structure gradually decreases from the large opening to the small opening, which allows the airflow to converge towards the small opening under the action of negative pressure, enhancing the airflow speed and negative pressure intensity at the small opening, ensuring that the sucked-in impurities and dust can quickly enter the negative pressure suction chamber 8 through the small opening, and avoiding the accumulation of impurities at the suction port.

[0035] Based on any of the above technical solutions, a further optimization is made: each of the aforementioned synchronous cylinders 2 adopts a synchronous lifting hydraulic cylinder and its extension and retraction are controlled by an external hydraulic pump station.

[0036] The inverted conical structure features a rounded edge at the larger opening to protect the quality of the fabric, making it particularly suitable for brittle fabrics like linen. The taper of the inverted conical structure can be adjusted according to the size of the impurity particles: for larger impurities (such as flax fiber clumps), a smaller taper (with a small difference in diameter between the larger and smaller openings) can be selected to prevent impurities from getting stuck at the taper transition; for fine dust, a larger taper can be selected to enhance the airflow convergence effect and improve adaptability. The inverted conical structure, in conjunction with the inner wall of the dust collection chamber 5, forms an airflow path that first diffuses and then converges, reducing airflow turbulence, lowering the operating noise of the negative pressure fan 7, and improving the workshop working environment.

[0037] Based on any of the above technical solutions, a further optimization is made by sealing and installing a tempered glass 16 for observing the amount of dust collected inside the dust collection cylinder 17 at the middle window position on the outer side.

[0038] It should be noted that during the operation of the device, the operator can visually observe the accumulation height of impurities and dust inside the dust collection cylinder 17 through the tempered glass 16 in the middle of the outer side of the dust collection cylinder 17; when the dust collection amount reaches the preset threshold (the accumulation height is close to the upper edge of the window), the device operation is stopped and the dust collection cylinder 17 is opened for cleaning.

[0039] Example 2: Compared with Example 1, this example also includes the following technical features: Based on any of the above technical solutions, a further optimization is made as follows: the collection assembly includes a dust collection cylinder 17 vertically fixed on the workshop floor outside the flax fabric, exhaust components are provided on both sides of the middle part of the dust collection cylinder 17, a sealing cover 18 is installed on the top of the dust collection cylinder 17, a connecting pipe 19 is installed on the top of the sealing cover 18, and the connecting pipe 19 is connected to the dust removal port of the negative pressure fan 7 through a corrugated bend 20.

[0040] It should be noted that when the negative pressure fan 7 conveys impurities and dust to the corrugated bend 20, the impurities and dust enter the dust collection cylinder 17 through the corrugated bend 20 and connecting pipe 19 (the dust collection cylinder 17 contains an air-dust mixture due to impurity accumulation); the exhaust components on both sides of the middle of the dust collection cylinder 17 discharge the air (clean air with separated impurities) inside the dust collection cylinder 17, achieving air-dust separation; the impurities and dust are deposited at the bottom of the dust collection cylinder 17 under the action of gravity; when the dust collection volume is observed to reach the threshold through the tempered glass 16 of the dust collection cylinder 17, the sealing cover 18 is opened to clean the impurities and dust at the bottom of the dust collection cylinder 17, and the sealing cover 18 is reinstalled and sealed after cleaning. The vertical setting of the dust collection cylinder 17 utilizes gravity to achieve natural sedimentation of impurities, reducing the adhesion of impurities to the cylinder wall and reducing the difficulty of cleaning; at the same time, the vertical structure can maximize the volume of the dust collection cylinder 17, reduce the cleaning frequency, and improve production efficiency.

[0041] Based on any of the above technical solutions, a further optimization is made as follows: the exhaust component includes exhaust pipes 21 disposed on both sides of the middle part of the dust collection cylinder 17, quick-release connector pipes 22 are threadedly screwed into the port of each exhaust pipe 21, and filter cotton cloth 23 is disposed at the port of each quick-release connector pipe 22.

[0042] It should be noted that when the air (containing a small amount of residual fine dust) in the dust collection cylinder 17 flows to the exhaust pipe 21, the air enters the quick-release connector pipe 22 through the exhaust pipe 21 and passes through the filter cloth 23 at the port of the quick-release connector pipe 22. The filter cloth 23 intercepts the residual fine dust in the air, preventing the fine dust from being discharged out of the dust collection cylinder 17 with the air and causing secondary pollution. The filtered clean air is discharged to the workshop environment through the filter cloth 23. When it is observed that a lot of fine dust is attached to the surface of the filter cloth 23 (such as by visual observation or feeling an increase in exhaust resistance), rotate the quick-release connector pipe 22 to unscrew it from the port of the exhaust pipe 21, replace or clean the filter cloth 23, and after maintenance, re-screw the quick-release connector pipe 22 back into the port of the exhaust pipe 21.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0044] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A dust removal device for flax fabric production, comprising a positioning frame fixedly installed above the downstream end of the flax fabric discharge end in the workshop, characterized in that: The positioning frame extends along the width of the linen fabric. A dust removal mechanism is installed at the bottom of the positioning frame, with the bottom of the dust removal mechanism facing the upper surface of the linen fabric. A positioning control mechanism is provided at the rear of the dust removal mechanism to control the angle between the dust suction port of the dust removal mechanism and the horizontally positioned linen fabric. A lifting mechanism is installed at the top of the positioning frame, with the bottom of the lifting mechanism passing through the positioning frame and extending below it to connect with the top of the dust removal mechanism. A collection component is connected to the outside of the positioning frame, located on the outside of the linen fabric and spaced apart from it.

2. The dust removal device for flax fabric production according to claim 1, characterized in that: The lifting mechanism includes several synchronous cylinders that are vertically arranged above the flax fabric and spaced apart along its length. The top of each synchronous cylinder is fixed to the bottom of the positioning frame, and the bottom of the telescopic end of each synchronous cylinder is fixed to a horizontally arranged lifting seat. The lifting seat extends along the width of the flax fabric and its inner and outer ends extend to the outside of the flax fabric. Welded ear seats are fixedly installed at the inner and outer ends of the bottom of the lifting seat. The top two ends of the dust removal mechanism are movably hinged to the ear holes of the corresponding welded ear seats.

3. The dust removal device for flax fabric production according to claim 2, characterized in that: The dust removal mechanism includes a dust collection chamber vertically positioned above the linen fabric. The dust collection chamber is positioned along the width of the linen fabric, with both ends extending to the outer side of the linen fabric. A negative pressure suction port is provided at the bottom of the dust collection chamber facing the upper surface of the linen fabric. A negative pressure fan is fixedly installed in the middle of the rear end face of the dust collection chamber, with the inlet end of the negative pressure fan communicating with the negative pressure suction chamber inside the dust collection chamber. The dust collection port of the negative pressure fan is connected to the inlet end of the collection assembly through a corrugated bend connector. Connecting lugs are fixedly installed at the inner and outer ends of the middle of the dust collection chamber, respectively. A rotating shaft is fixedly connected between the two connecting lugs, with both ends of the rotating shaft movably hinged in the ear holes of the welding lugs on their corresponding sides. A middle lug is fixedly welded to the middle of the rear side of the dust collection chamber, and the middle lug is movably hinged to the left end of the control mechanism on its rear side.

4. The dust removal device for flax fabric production according to claim 3, characterized in that: The control mechanism includes a telescopic control cylinder. The upper end of the telescopic control cylinder is movably hinged in the ear hole of the upper ear seat. The top of the upper ear seat is fixed to the bottom of the positioning frame. The end of the piston rod at the lower end of the telescopic control cylinder is movably hinged in the ear hole of the middle ear seat. When the telescopic control cylinder extends or retracts, it can drive the dust collection chamber to swing around the rotating shaft.

5. A dust removal device for flax fabric production according to claim 4, characterized in that: The negative pressure suction port of the dust collection chamber adopts an inverted cone-shaped structure and its bottom is connected to the interior of the negative pressure suction chamber.

6. A dust removal device for flax fabric production according to claim 5, characterized in that: The collection assembly includes a dust collection cylinder vertically fixed on the workshop floor outside the flax fabric, exhaust components are provided on both sides of the middle part of the dust collection cylinder, a sealing cover is installed on the top of the dust collection cylinder, and a connecting pipe is installed on the top of the sealing cover. The connecting pipe is connected to the dust collection port of the negative pressure fan through a corrugated bend.

7. A dust removal device for flax fabric production according to claim 6, characterized in that: The exhaust component includes exhaust pipes disposed on both sides of the middle part of the dust collection cylinder. A quick-release connector is threadedly installed at the port of each exhaust pipe, and a filter cloth is provided at the port of each quick-release connector.

8. A dust removal device for flax fabric production according to claim 7, characterized in that: Each of the aforementioned synchronous cylinders is a hydraulic cylinder for synchronous lifting and its extension and retraction are controlled by an external hydraulic pump station.

9. A dust removal device for flax fabric production according to claim 8, characterized in that: A tempered glass window for observing the amount of dust collected inside is sealed and installed at the middle of the outer side of the dust collection cylinder.

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