Yarn sizing device for spinning
Technical Field
The invention relates to the technical field of textile equipment, in particular to a yarn sizing device for textile.
Background
In the prior art, the strength of warp yarns of fabrics such as cotton, viscose, synthetic fibers and the like is reduced, and the warp yarns are easily broken due to large tension and friction in the weaving process. In order to reduce broken warp and improve weaving efficiency and grey cloth quality, sizing treatment is required to be carried out on warp before weaving so that yarns become compact and smooth, and therefore breaking strength and abrasion resistance of the yarns are improved. The prior sizing machine for textile has a plurality of defects, such as uneven sizing, uneven thickness of the sizing sprayed on the surface of the yarn and the like.
The invention with the patent number of CN108049054A discloses a warp permeability sizing device, which relates to the technical field of textiles and comprises a warp beam, wherein warp yarns are wound on the warp beam, a supporting table, a pressing roller and a drying device are sequentially arranged on the right side of the warp beam from left to right, a sizing device is arranged on the upper portion of the supporting table, the warp yarns pass through the supporting table and finally enter the drying device, the warp sizing device can effectively size the warp yarns, the waste of size is avoided, and the device is further provided with a stirring assembly, so that the size is uniformly mixed when sizing is carried out on the warp yarns, and precipitation is avoided.
However, the above invention patents have the following problems; first, although the invention does not cause deposition, the invention cannot ensure the surface thickness of the yarn, and requires extra operation of scraping the surface of the warp, which brings extra labor for the worker, and second, the device of the invention cannot adjust according to the tension of the yarn during loading because of the structural fixity, so that the yarn is easy to break, wear and the like during transportation.
Disclosure of Invention
The invention aims to provide a yarn sizing device for spinning, which solves the technical problems that the surface thickness of yarn cannot be ensured and the tension of the yarn cannot be automatically adjusted by the sizing device in the prior art.
The invention provides a yarn sizing device for textiles, which comprises a sizing mechanism, a material receiving mechanism, a discharging mechanism and a scraping mechanism, wherein the sizing mechanism is arranged between the discharging mechanism and the scraping mechanism, the discharging mechanism is arranged at the left end of the sizing mechanism, the material receiving mechanism is arranged at the right end of the scraping mechanism, the discharging mechanism comprises a discharging assembly and a yarn limiting assembly, the yarn limiting assembly is arranged at the right end of the discharging assembly, the scraping mechanism comprises a top surface pulp scraping assembly and a bottom surface pulp scraping assembly, the top surface pulp scraping assembly is arranged above the bottom surface pulp scraping assembly, the bottom surface pulp scraping assembly comprises a pulp scraping component and a lifting component for driving the pulp scraping component to lift, and the pulp scraping component is arranged at the top of the lifting component.
Further, scrape thick liquid part including U type connecting plate and the receipts thick liquid case of setting at U type connecting plate top, the uncovered of receipts thick liquid case upwards sets up, the top of U type connecting plate is fixed with the flitch of scraping that is the slope setting.
Further, the lifting unit sets up the fixed plate at the support frame top including left slider, right slider, support frame and two intervals, two be equipped with the two-way lead screw that is the level setting between the fixed plate, be equipped with two sections screw threads opposite to soon on the two-way lead screw, left side slider and right slider respectively with two sections threaded connection of two-way lead screw, two be equipped with two guide bars that are the level setting between the fixed plate, left side slider and right slider homoenergetic gliding cover are established on the guide bar.
Further, the lifting unit is still including setting up the articulated seat in the bottom of U type connecting plate, the top of left side slider and right slider all is equipped with the mount pad, two it has the driving plate all to articulate between mount pad and the articulated seat, the cover is equipped with first hand wheel on the two-way lead screw, the top of support frame is equipped with the support riser that two intervals set up, all is equipped with the slide rail that is vertical setting on every support riser's the lateral wall, be equipped with on the slide rail rather than sliding fit's sliding block, U type connecting plate is fixed between two sliding blocks.
Further, the thick liquid subassembly is scraped to top surface sets up the mounting bracket at the mounting bracket top, two including mount and two intervals all be equipped with a bearing board, two on the lateral wall of mounting bracket be equipped with guide roll between the bearing board, two the tip of bearing board all is equipped with L type backup pad, is equipped with the slide bar on the bearing board, the cover is equipped with the conflict dish on the slide bar, the bottom of slide bar is equipped with L type bearing board, two be equipped with between the L type bearing board and scrape the magazine, it is the slope setting to scrape the magazine, every all overlap on the slide bar and be equipped with expanding spring, expanding spring's both ends are contradicted respectively on L type backup pad and conflict dish.
Further, the blowing subassembly is including first support and rotation axis, be equipped with the first bearing frame that two intervals set up on the first support, the rotation axis level sets up, and the rotation axis passes through the bearing with two first bearing frames and is connected, the cover is equipped with the blowing roller on the rotation axis.
Further, spacing subassembly of yarn is including spacing part and the altitude mixture control part that the interval set up, spacing part is including the rotating member that two intervals set up, two the rotating member structure is the same and all including rotatory section of thick bamboo, support bracket and the second bearing frame of setting at the support bracket top, rotatory section of thick bamboo passes through the bearing and is connected with the second bearing frame, the cover is equipped with reduction gear on the rotatory section of thick bamboo, the top of support bracket is equipped with the rotating electrical machines, the cover is equipped with the driving gear with reduction gear meshing on the output shaft of rotating electrical machines, two all install the drive plate, two on the lateral wall of rotatory section of thick bamboo be equipped with the spacing roller that is the level setting between the drive plate.
Further, the height adjusting part is including two height adjusting parts that are the symmetry and set up, two height adjusting part structure is the same and all includes the elevator and is the install bin of vertical setting, be equipped with the slide bar that is the transmission lead screw of vertical setting and two intervals set up in the install bin, the elevator cover is established on the slide bar, and is equipped with on the elevator with transmission lead screw thread fit's screw, the top cover of transmission lead screw is equipped with the second hand wheel, two the lateral wall of elevator all is equipped with a curb plate, two be equipped with between the curb plate and support and touch the roller.
Further, starching mechanism is including last thick liquid case, first connecting roller and second connecting roller, the equal horizontal installation of first connecting roller and second connecting roller is at last thick liquid incasement, the uncovered upwards setting of last thick liquid case, first connecting roller is equipped with two, and two first connecting rollers all set up the top of connecting the roller at the second.
Further, receiving agencies is including receiving material motor, second support and being the axis of rotation that the level set up, be equipped with the third bearing frame that two intervals set up on the second support, the axis of rotation all is connected through the bearing with two bearing frames, the cover is equipped with the receipts material roller in the axis of rotation, it is equipped with the driving pulley to receive to overlap on the output shaft of material motor, the tip cover of axis of rotation is equipped with driven pulley, connect through synchronous belt transmission between driving pulley and the driven pulley.
Compared with the prior art, the invention has the beneficial effects that:
the sizing device is provided with the sizing mechanism, the receiving mechanism, the discharging mechanism and the scraping mechanism, can automatically realize the operations of discharging, sizing, scraping and receiving yarns, and can automatically adjust the tension of the yarns, so that the technical problems that the traditional sizing device in the prior art cannot ensure the surface thickness of the yarns and cannot automatically adjust the tension of the yarns are effectively solved.
Secondly, the automatic sizing machine is provided with the material scraping mechanism, the material scraping mechanism comprises a top surface sizing scraping component and a bottom surface sizing scraping component, the top surface sizing scraping component and the bottom surface sizing scraping component can respectively scrape two surfaces of yarns and can treat scraped pulp, the yarns can be automatically scraped by the material scraping mechanism, the surface thickness of warp yarns is ensured, manual sizing scraping operation of workers is not needed, and great convenience is brought to the workers.
The yarn tension adjusting device is provided with a yarn limiting assembly, the yarn limiting assembly comprises a limiting part and a height adjusting part, the positions of the limiting roller and the position of the contact roller can be adjusted through the limiting part and the height adjusting part respectively, the tension of yarn can be adjusted conveniently, the tension of the yarn can be adjusted automatically through the yarn limiting assembly, and the phenomena of breakage, abrasion and the like of the yarn in conveying are avoided.
Fourthly, the paddle liquid is firstly put into the sizing box by workers, and when the yarn passes through the sizing box, the yarn can be coated by the paddle liquid, so that the coating efficiency is high, and the yarn coating method is worthy of popularization.
Fifth, the yarn scraping device is provided with the lifting component, a worker can automatically adjust the height of the material scraping plate by rotating the first hand wheel, the precision of screw rod transmission is high, the material scraping plate is convenient to abut against the bottom surface of yarn, the surface thickness of the yarn is controlled, and the worker can conveniently detach the yarn by reducing the height of the material scraping plate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic perspective view of the scraping mechanism;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a schematic front view of the scraping mechanism;
FIG. 6 is a partial perspective view of the present invention;
FIG. 7 is a schematic perspective view of a yarn stop assembly;
FIG. 8 is a height adjustment member of the height adjustment member;
FIG. 9 is a schematic perspective view of the receiving mechanism;
reference numerals:
a sizing mechanism 1, a sizing box 1a, a first connecting roller 1b, a second connecting roller 1c, a receiving mechanism 2, a receiving motor 2a, a second bracket 2b, a rotating shaft 2c, a third bearing seat 2d, a receiving roller 2e, a driving pulley 2f, a driven pulley 2g, a synchronous belt 2h, a discharging mechanism 3, a scraping mechanism 4, a discharging component 5, a first bracket 5a, a rotating shaft 5b, a first bearing seat 5c, a discharging roller 5d, a yarn limiting component 6, a limiting component 6a, a rotating piece 6a1, a rotating cylinder 6a2, a support bracket 6a3, a second bearing seat 6a4, a reduction gear 6a5, a rotating motor 6a6, a driving gear 6a7, a driving plate 6a8, a limiting roller 6a9, a height adjusting component 6b1, a lifting block 6b2, a mounting box 6b3, a driving screw 6b4, a sliding rod 5, a second hand wheel 6b6, the device comprises side plates 6b7, an abutting roller 6b8, a top surface pulp scraping component 7, a fixing frame 7a, a mounting frame 7b, a bearing plate 7c, a guide roller 7d, an L-shaped supporting plate 7e, a sliding rod 7f, an abutting disc 7g, an L-shaped bearing plate 7h, a material scraping box 7i, a telescopic spring 7j, a bottom surface pulp scraping component 8, a pulp scraping part 8a, a U-shaped connecting plate 8b, a pulp receiving box 8c, a pulp scraping plate 8d, a lifting part 9, a left sliding block 9a, a right sliding block 9b, a supporting frame 9c, a fixing plate 9d, a bidirectional screw rod 9e, a guide rod 9f, a hinged seat 9g, a mounting seat 9h, a transmission plate 9i, a first hand wheel 9j, a supporting vertical plate 10, a sliding rail 10a and a sliding block.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, an embodiment of the present invention provides a textile yarn sizing device, including a sizing mechanism 1, a receiving mechanism 2, a discharging mechanism 3, and a scraping mechanism 4, where the sizing mechanism 1 is disposed between the discharging mechanism 3 and the scraping mechanism 4, the discharging mechanism 3 is arranged at the left end of the sizing mechanism 1, the receiving mechanism 2 is arranged at the right end of the scraping mechanism 4, the discharging mechanism 3 comprises a discharging component 5 and a yarn limiting component 6, the yarn limiting component 6 is arranged at the right end of the discharging component 5, the scraping mechanism 4 comprises a top surface scraping component 7 and a bottom surface scraping component 8, the top surface scraping component 7 is arranged above the bottom surface scraping component 8, the bottom surface pulp scraping assembly 8 comprises a pulp scraping component 8a and a lifting component 9 for driving the pulp scraping component 8a to lift, and the pulp scraping component 8a is arranged at the top of the lifting component 9; can realize the automatic rolling work to the yarn through receiving agencies 2, can carry out the thick liquid operation of scraping automatically to the yarn through scraping material mechanism 4, guarantee the surface thickness of warp, need not the manual thick liquid operation of scraping of worker, brought very big convenience for the worker, through the tension that spacing subassembly 6 of yarn can automatically regulated yarn, avoid phenomenons such as yarn fracture, wearing and tearing appear in carrying.
Further, the slurry scraping component 8a comprises a U-shaped connecting plate 8b and a slurry collection box 8c arranged at the top of the U-shaped connecting plate 8b, an opening of the slurry collection box 8c is arranged upwards, and a scraper 8d arranged in an inclined manner is fixed at the top of the U-shaped connecting plate 8 b; the thick liquid that scrapes flitch 8d and strike off can fall into to receiving in the thick liquid case 8c, and U type connecting plate 8b is used for installing receipts thick liquid case 8c, and the flitch 8d of scraping that the slope set up is convenient for make the thick liquid can flow into to receiving in the thick liquid case 8 c.
Further, the lifting component 9 comprises a left slider 9a, a right slider 9b, a support frame 9c and two fixing plates 9d arranged at the top of the support frame 9c at intervals, a horizontally arranged bidirectional screw rod 9e is arranged between the two fixing plates 9d, two sections of threads with opposite turning directions are arranged on the bidirectional screw rod 9e, the left slider 9a and the right slider 9b are respectively in threaded connection with the two sections of the bidirectional screw rod 9e, two horizontally arranged guide rods 9f are arranged between the two fixing plates 9d, and the left slider 9a and the right slider 9b can be sleeved on the guide rods 9f in a sliding manner; when the bidirectional screw rod 9e rotates, the left slider 9a and the right slider 9b can move relatively or back to back, and the guide rod 9f is used for guiding and supporting the left slider 9a and the right slider 9 b.
Further, the lifting component 9 further comprises a hinge seat 9g arranged at the bottom of the U-shaped connecting plate 8b, the tops of the left slider 9a and the right slider 9b are both provided with a mounting seat 9h, a transmission plate 9i is hinged between the two mounting seats 9h and the hinge seat 9g, a first hand wheel 9j is sleeved on the bidirectional screw rod 9e, the top of the support frame 9c is provided with two support vertical plates 10 arranged at intervals, the side wall of each support vertical plate 10 is provided with a slide rail 10a arranged vertically, the slide rail 10a is provided with a slide block 10b in sliding fit with the slide rail 10a, and the U-shaped connecting plate 8b is fixed between the two slide blocks 10 b; the worker can make two-way lead screw 9e rotate through rotating first hand wheel 9j, two-way lead screw 9e can drive left slider 9a and right slider 9b relative movement or move back to back, when left slider 9a and right slider 9b relative movement, contained angle between two driving plates 9i reduces, make U type connecting plate 8b can vertical rebound, when left slider 9a and right slider 9b move back to back, the contained angle between two driving plates 9i increases, make U type connecting plate 8b can vertical rebound, make scraping flitch 8d can move in vertical direction, be convenient for adjust scraping flitch 8 d's height, it demolishs the yarn to reduce scraping flitch 8 d's height convenience of worker, slide rail 10a is used for playing the effect of direction to sliding block 10 b.
Further, the top surface pulp scraping component 7 comprises a fixed frame 7a and two mounting frames 7b arranged at the top of the fixed frame 7a at intervals, two bearing plates 7c are arranged on the side walls of the two mounting frames 7b, a guide roller 7d is arranged between the two bearing plates 7c, L-shaped supporting plates 7e are arranged at the end parts of the two bearing plates 7c, sliding rods 7f are arranged on the bearing plates 7c, a contact disc 7g is sleeved on the sliding rods 7f, an L-shaped bearing plate 7h is arranged at the bottom of the sliding rods 7f, a pulp scraping box 7i is arranged between the two L-shaped bearing plates 7h, the pulp scraping box 7i is arranged in an inclined mode, each sliding rod 7f is sleeved with a telescopic spring 7j, and two ends of each telescopic spring 7j are respectively abutted to the L-shaped supporting plate 7e and the contact disc 7 g; the telescopic spring 7j is used for enabling the scraping box 7i to be telescopic, the phenomenon that the scraping box 7i is damaged due to overlarge stress on yarns is avoided, the sliding rod 7f is used for guiding the movement of the L-shaped supporting plate 7h, and the guide roller 7d is used for guiding the yarns.
Further, the discharging assembly 5 comprises a first support 5a and a rotating shaft 5b, two first bearing seats 5c arranged at intervals are arranged on the first support 5a, the rotating shaft 5b is horizontally arranged, the rotating shaft 5b is connected with the two first bearing seats 5c through bearings, and a discharging roller 5d is sleeved on the rotating shaft 5 b; the first bearing housing 5c is used for mounting the rotary shaft 5b, and the rotary shaft 5b is used for mounting the discharge roller 5 d.
Further, the yarn limiting assembly 6 comprises a limiting component 6a and a height adjusting component 6b which are arranged at intervals, the limiting component 6a comprises two rotating pieces 6a1 which are arranged at intervals, the two rotating pieces 6a1 have the same structure and respectively comprise a rotating cylinder 6a2, a supporting bracket 6a3 and a second bearing seat 6a4 arranged at the top of the supporting bracket 6a3, the rotating cylinder 6a2 is connected with the second bearing seat 6a4 through a bearing, a reduction gear 6a5 is sleeved on the rotating cylinder 6a2, a rotating motor 6a6 is arranged at the top of the supporting bracket 6a3, a driving gear 6a7 meshed with the reduction gear 6a5 is sleeved on an output shaft of the rotating motor 6a6, driving plates 6a8 are respectively installed on side walls of the two rotating cylinders 6a2, and a limiting roller 6a9 which is arranged horizontally is arranged between the two driving plates 6a 8; when tension of yarn is to be adjusted, the rotary motor 6a6 works to drive the driving gear 6a7 to rotate, the driving gear 6a7 can drive the reduction gear 6a5 meshed with the driving gear to rotate, so that the rotary drum 6a2 can rotate, the rotary drum 6a2 can drive the driving plate 6a8 to rotate, the two driving plates 6a8 can drive the limiting rollers 6a9 to rotate around the axis of the rotary drum 6a2, and the limiting rollers 6a9 can be adjusted to different positions.
Specifically, the height adjusting part 6b comprises two height adjusting parts 6b1 which are symmetrically arranged, the two height adjusting parts 6b1 have the same structure and respectively comprise a lifting block 6b2 and a vertically arranged installation box 6b3, a vertically arranged transmission screw 6b4 and two sliding rods 6b5 which are arranged at intervals are arranged in the installation box 6b3, the lifting block 6b2 is sleeved on the sliding rods 6b5, a nut which is in threaded fit with the transmission screw 6b4 is arranged on the lifting block 6b2, a second wheel 6b6 is sleeved at the top end of the transmission screw 6b4, a side plate 6b7 is arranged on each of the side walls of the two lifting blocks 6b2, and a touch roller 6b8 is arranged between the two side plates 6b 7; the worker can make transmission lead screw 6b4 take place to rotate through rotating second wheel 6b6, and transmission lead screw 6b4 can drive elevator 6b2 rather than screw-thread fit and move in vertical direction, makes conflict roller 6b8 can rise to suitable height, makes the tension of yarn can take place to adjust, and slide bar 6b5 is used for playing the effect of direction to elevator 6b 2.
Specifically, the sizing mechanism 1 comprises a sizing box 1a, first connecting rollers 1b and second connecting rollers 1c, wherein the first connecting rollers 1b and the second connecting rollers 1c are both horizontally arranged in the sizing box 1a, an opening of the sizing box 1a is upwards arranged, two first connecting rollers 1b are arranged, and the two first connecting rollers 1b are both arranged above the second connecting rollers 1 c; the second connecting roller 1c is provided between the two first connecting rollers 1b, and the worker should put the size into the sizing box 1a in advance, and when the yarn passes through the sizing box 1a, the size can be applied to the yarn by the size in the sizing box 1 a.
Specifically, the material receiving mechanism 2 comprises a material receiving motor 2a, a second support 2b and a rotating shaft 2c which is horizontally arranged, two third bearing seats 2d which are arranged at intervals are arranged on the second support 2b, the rotating shaft 2c is connected with the two bearing seats through bearings, a material receiving roller 2e is sleeved on the rotating shaft 2c, a driving belt pulley 2f is sleeved on an output shaft of the material receiving motor 2a, a driven belt pulley 2g is sleeved at the end part of the rotating shaft 2c, and the driving belt pulley 2f is in transmission connection with the driven belt pulley 2g through a synchronous belt 2 h; receive material motor 2a work and can drive belt pulley 2f and rotate, drive belt pulley 2f can make driven pulley 2g rotate through synchronous belt 2h, makes and receives material roller 2e and can take place to rotate, makes the yarn can take place to remove, and axis of rotation 2c is used for installing receiving material roller 2e, and third bearing frame 2d is used for installing axis of rotation 2 c.
The working principle of the invention is as follows: the worker winds the yarn on the discharging roller 5d manually, the worker sequentially penetrates one end of the yarn through the limiting roller 6a9, the abutting roller 6b8, the first connecting roller 1b, the second connecting roller 1c and the guide roller 7d and winds the yarn on the collecting roller 2e, the upper surface of the yarn can abut against the scraping box 7i, the lower surface of the yarn abuts against the end part of the scraping plate 8d, the collecting motor 2a works to drive the driving pulley 2f to rotate, the driving pulley 2f can drive the driven pulley 2g to rotate through the synchronous belt 2h, the collecting roller 2e can rotate to enable the yarn to move, when the tension of the yarn is adjusted, the rotating motor 6a6 works to drive the driving gear 6a7 to rotate, the driving gear 6a7 can drive the reduction gear 6a5 meshed with the driving gear 6a7 to rotate, and the rotating cylinder 6a2 can rotate, the rotary cylinder 6a2 can drive the drive plates 6a8 to rotate, the two drive plates 6a8 can drive the limit rollers 6a9 to rotate around the axis of the rotary cylinder 6a2, so that the limit rollers 6a9 can be adjusted to different positions, a worker can rotate the transmission screw 6b4 by rotating the second hand wheel 6b6, the transmission screw 6b4 can drive the lifting block 6b2 in threaded fit with the transmission screw to move in the vertical direction, the collision roller 6b8 can be lifted to a proper height, so that the tension of the yarn can be adjusted, when the yarn passes through the sizing box 1a, the slurry in the sizing box 1a can perform sizing operation on the yarn, in the process of yarn movement, the slurry coated on the yarn can collide with the scraping plate 8d and the scraping box 7i, so that redundant slurry can be scraped, the slurry scraped by the scraping plate 8d can fall into the collecting box 8c, and the slurry scraped by the scraping box 7i can be stored in the scraping box 7i, the worker can make two-way lead screw 9e rotate through rotating first hand wheel 9j, two-way lead screw 9e can drive left slider 9a and right slider 9b relative movement or carry on mutually away from the body and move, when left slider 9a and right slider 9b relative movement, contained angle between two driving plates 9i reduces, make U type connecting plate 8b can vertical rebound, when left slider 9a and right slider 9b carry on mutually away from the body and move, contained angle between two driving plates 9i increases, make U type connecting plate 8b can vertical rebound, make scraping plate 8d can move in vertical direction, be convenient for adjust scraping plate 8 d's height, it makes things convenient for the worker to demolish the yarn to reduce scraping plate 8 d's height.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.