CN201245733Y - Drafting device of spinning machine - Google Patents

Abstract

The utility model provides a drafting device for a spinning device. The drafting device is provided with a roller seat (1), an upper roller, a middle roller and a lower roller mounted on the roller seat, and a leather gasket passing through the middle roller from the lower roller, wherein, a tensioning roller is mounted in the leather gasket so that the leather gasket bends over and the back surface of the leather gasket covers the middle roller; a leather gasket roller is arranged inside the leather gasket; a pressing roller of the leather gasket is arranged outside the leather gasket; the tensioning roller (12) of the leather gasket is mutually pressed with the middle roller (11) through the leather gasket (7) so that the leather gasket is clamped and driven through the middle roller and the tensioning wheel of the leather gasket; a leather gasket plate (8) with the length between the upper roller (2) and the lower roller (10) is arranged in the leather gasket, the leather gasket plate is provided with a plane lining on the working surface of the leather gasket, the leather gasket roller (51) is mounted at the front end of the leather gasket plate and at the rear end thereof, and the radius of the leather gasket roller is less than the half of that of the roller; a plurality of leather gasket rollers (6) are mounted outside the working surface of the leather gasket, and the leather gasket is pressed towards the leather gasket plate through the pressing roller of the leather gasket. Compared with the prior art, the drafting device enhances 4 percent CV value of the identical yarn count for measuring the Uster yarn evenness.

Description

Drafting assembly of spinning frame

Technical field the utility model relates to a kind of drafting assembly of spinning frame, belongs to technical field of textile machine.

The background technology fine spining machine is a kind of rove to be spun textile machine into spun yarn, and drafting assembly of spinning frame is that what to be played a major role in spinning is the fibriilar mechanism of spun yarn with roving-drafting, fiber number through yarn thigh behind the drafter reduces, and is spun yarn through just rove being spun after the subsequent handling.Three rollers before, during and after traditional drafting assembly of spinning frame has utilize the linear differential between the roller that yarn is carried out drawing-off.Two districts are arranged between three rollers, promptly the main drawing area between preceding, middle roller and in, first break draft district between the rear roller.Three rollers are pressed the different length of fiber, and its centre-to-centre spacing has different requirements, and three rollers are pressed the roller of technological requirement preparation different pressures, become satisfactory spun yarn when making rove by two draw zones.Because fibre high-speed separates, alter a great deal in drafting process, therefore also being provided with apron assists the uniformity of controlling fiber in separation.As the drafting system in the FX502 fine spining machine of Zhejiang Jin Ying group production, its structure is: apron drew middle roller and to turn back with an idler roller and the apron non-working surface is pressed on the middle roller, made apron driven and run-in synchronism by middle roller from rear roller.One in front and one in back two apron rollers are arranged in the apron, and apron has two apron pressure rollers to press mutually with them outward, make fiber between apron pressure roller and the apron by being controlled.An apron roller near front roller is pressed on the middle roller apron non-working surface to improve the synchronism of rotating between apron and the middle roller simultaneously.Because of fiber can freely dissociate, generally the fiber path distance that is not subjected to roller, apron control in the drafting process is called the district of swimming in drafting process.The Qu Yuechang that swims, drafting system is poor more to the control ability of fiber, and the uniformity that the spun yarn bar is done is also poor more.And in the drafting assembly of spinning frame of said structure, distance is longer between clamping line between the outer apron pressure of apron roller of pressing mutually with middle roller in the apron and apron is mixed and the front roller, cause this place swim the district longer, it is same that another is also longer to distance that the undesirable person between apron roller and the apron pressure roller holds between line and the rear roller, cause the district of swimming at this place also longer, therefore the fiber in this zone is felt bad control, causes the dried uniformity of spun yarn bar can not reach high requirement.

The utility model content is at above-mentioned defective, and the utility model just provides a kind of less drafting assembly of spinning frame in district that swims.

The drafting assembly of spinning frame that the utility model provides, have installed on roller stand, the roller stand before, during and after roller and drew the apron of middle roller from rear roller, there is an idler roller to be installed in apron to be turned back in the apron and the apron back side is wrapped on the middle roller, the apron roller is arranged in the apron, and apron has the apron pressure roller outward; Said apron idler roller presses and makes apron by middle roller and apron regulating wheel clamping driving through apron mutually with middle roller; The apron plate of length between the roller of front and back arranged in apron, and the apron plate has plane lining on the apron working face, and said apron roller is installed on the apron plate front and back end, 1/2 of the not enough roller radius of the radius of apron roller; Said apron pressure roller has a plurality of, is installed in outside the apron working face, and the apron pressure roller is pressed to the apron plate with apron.

The drafting assembly of spinning frame that the utility model provides, the one, with middle roller and the operation of idler roller clamping apron, thereby the position that can adjust the apron roller does not influence the operation of apron with size, the 2nd, at apron liner epithelium girth sheets, apron is realized by apron plate and apron pressure roller the control action of fiber, thereby can adjust apron pressure roller quantity and position, therefore, acting between the roller of front and back of the utility model apron all can exist, and with the apron roller of small radii make apron reach before and after the nearside of roller, then fiber is controlled by apron almost all can during drawing-off between the roller of front and back.Compared with prior art, dwindled the district of swimming, the uniformity that the spun yarn bar is done is improved, and identical number is surveyed the Wu Site strip dry CV value and improved 4%.

The drafting assembly of spinning frame that the utility model provides, in the groove that said apron pressure roller is placed on the roller stand to be opened with two ends, one end of the nearly apron of groove of this placement apron pressure roller is low, the apron pressure roller is pressed in apron on the apron board plane according to gravity, make weight and the size that to adjust each apron pressure roller flexibly come the length of controlling fiber and the separating degree of fiber, further improve the uniformity that the spun yarn bar is done.

The drafting assembly of spinning frame that the utility model provides, usually by being obliquely installed, therefore the plane of said apron plate also is obliquely installed last bottom roll, and the apron working face is on the upper strata, then placing the groove of apron pressure roller can leave by the direction vertical with the plane of apron plate, with simplified processing process.

Said apron pressure roller becomes multiple weight according to the fibre length different designs, be otherwise that the multiple more amount of the short more pressure roller quantity of the light more fibre length of the few more weight of the long more pressure roller quantity of fibre length is heavy more, between apron pressure roller and apron, be subjected to effective clamping control to guarantee fiber.

Drafting assembly of spinning frame according to the utility model design, having swims distinguishes extremely short so that fiber is controlled in draw zone all the time, and can reach how much adapt to the length of fiber and the separating degree of fiber by the weight that changes the apron pressure roller, it is bigger to make this device adapt to fiberoptic scope.

Description of drawings Fig. 1 is the structural representation of the utility model one embodiment, among the figure: 1-roller stand, 2-top roller (feeding roller), 3-feeding pressurization roller, 4-reel cage, 5-apron roller axle, 51-apron roller, 6-apron pressure roller (among the figure totally 14), 7-apron, 8-apron plate, 9-drawing-off pressurization roller, 10-bottom roll (drawing rollers), 11-middle roller (apron roller), 12-apron idler roller;

Fig. 2 for A among Fig. 1 to view (part is cutd open and is removed), among the figure: the 1-roller stand, 2-top roller (feeding roller), 3-feeding pressurization roller, the 4-reel cage, 6-apron pressure roller, the 7-apron, 9-drawing-off pressurization roller, 10-bottom roll (drawing rollers), 13-assists roller stand.

The specific embodiment as shown in Figure 1, 2, this example is from axis projection (Fig. 1), top roller 2 middle rollers 11, bottom roll 10 and reel cage axle have been installed on roller stand 1, there are reel cage 4 one ends to be hinged on the reel cage axle, the other end is buckled on the roller shaft with movable button, there are the pressurization roller 3 of top roller and the pressurization roller 9 of bottom roll to be installed on the reel cage, adorn reel cage appropriate after in the fiber front end is guided to the roller draft district and make the pressurization roller with the roller controlling fiber.Top roller and its pressurization roller compress line and bottom roll and its pressurization roller compress line one with the plane of 45 ° of ground inclinations on.Be parallel on the plane of aforementioned clinoplain one, with four apron roller axle 5 four apron rollers 51 be installed, the apron roller is with apron 7 outward, and wherein each apron roller makes the outer surface of apron compress on the clinoplain of line place aforementioned.Each is identical and less than 1/3 of roller diameter up and down for the diameter of apron roller, and wherein two of outermost end are near last bottom roll, makes to compress linear distance the shortest on apron two ends that they open and the last bottom roll.There is the apron roller of middle roller 11 and top roller one end to make apron be folded to middle roller one side as guide roller, be enclosed within after apron is turned back on the apron idler roller 12, apron is pressed on the apron idler roller middle roller so that middle roller and apron idler roller clamping apron and drive the apron motion.Be that apron is enclosed within outside the apron roller and apron idler roller of L-shaped layout, externally be pressed in the knuckle inboard of apron by middle roller.Four apron rollers are installed in each two nearer mode in position up and down, between middle two apron rollers an apron plate 8 are arranged, and the apron plate has the plane holder to make apron keep its outer surface to compress on the clinoplain of line place aforementioned in apron.Go up at roller stand and auxiliary roller stand (showing among Fig. 1) that also each has equidistantly opened 16 notches, said notch and aforementioned clinoplain vertically upward, and also by being parallel to aforementioned clinoplain, each bottom land compresses on the clinoplain of line place aforementioned.Each corresponding notch is the installation bearing of apron pressure roller 6 two end axles between on roller stand and the auxiliary roller stand, and promptly the apron pressure roller is placed on the said notch with two end axles and installs.The apron pressure roller can have plurality of specifications (this example is 9 kinds) and many (this example has been used 14) as spare part, answers quality of fiber and decides.

To taking out shadow (Fig. 2), last bottom roll 2,10 and pressurization roller 3,9 thereof respectively have two components, two Column Layouts to this example from the A of Fig. 1.Reel cage 4 is middle vertical risers, and the pressurization roller is chosen in both sides.Have auxiliary roller stand 13 being fixed on the roller stand 1 through mounting rod, the apron roller of apron 7 is installed on roller stand and the auxiliary roller stand with axle, and apron pressure roller 6 is arranged in outside the apron abreast.

During work, fiber send at the bottom roll place through behind the apron, and the linear velocity between bottom roll, apron and the top roller is a gradually little variation in the feeding of top roller place, make fiber obtain a drafting force between last bottom roll and evenly separated, thick ribbon is dried to be become thin ribbon and does.Between last bottom roll, fiber is under the dual use of apron and bottom roll, the notch of this place's apron usefulness that pressure roller is installed makes progress, therefore the apron pressure roller is with gravity fiber to be pressed on the apron, and apron is subjected to setting off of apron plate, therefore make fiber be subjected to controlling significantly, the process that its separation " attenuates " is progressively, evenly carry out, and uncontrolled " district of swimming " only is subjected to working range two ends that the apron roller limits and last bottom roll to compress space between the line at apron, and the utility model is to the compared with prior art raising greatly of control degree of fiber like this.

Claims (2)

1, a kind of drafting assembly of spinning frame, upper, middle and lower roller of being installed on roller stand, the roller stand and the apron that drew middle roller from bottom roll are arranged, there is an idler roller to be installed in apron to be turned back in the apron and the apron back side is wrapped on the middle roller, the apron roller is arranged in the apron, and apron has the apron pressure roller outward; It is characterized in that said apron idler roller presses and make apron to be driven by middle roller and the clamping of apron regulating wheel through apron mutually with middle roller; The apron plate of length between last bottom roll arranged in apron, and the apron plate has plane lining on the apron working face, and said apron roller is installed on the apron plate front and back end, on the radius deficiency of apron roller 1/2 of the bottom roll radius; Said apron pressure roller has a plurality of, is installed in outside the apron working face, and the apron pressure roller is pressed to the apron plate with apron.

2, drafting assembly of spinning frame as claimed in claim 1 is characterized in that in the groove that said apron pressure roller is placed on the roller stand to be opened with two ends, and this end of the nearly apron of groove of placing the apron pressure roller is low, and the apron pressure roller is pressed in apron on the apron board plane according to gravity.

Images