CN2046124U - All pneumatic draging and stretching apparatus - Google Patents

Abstract

The utility model relates to an all pneumatic dragging and stretching apparatus. Because of self-structure, the existing dragging and stretching apparatus on a spinning machine has the disadvantage of inconvenient adjustment which causes oversize pressure difference between two spinning spindles and low evenness of different strips in the different fiber. The utility model adopts an all pneumatic dragging and stretching apparatus, utilizes the same atmospheric pressure source, and adopts the air cylinder with different inner diameter dimensions, different cross sections and different sealing structures. All of the leather rollers of dragging and stretching apparatus on the spinning machine are pressurized by a piston at the same time, so as to generate stable and equal pressure, decrease the pressure difference between two spinning spindles, and enhance the evenness of the strips in the same fiber and the evenness of the strips in the different fiber. The utility model has the advantages of convenient adjustment, and infrequent correction and modification.

Description

All pneumatic draging and stretching apparatus

The utility model relates to the full pneumatic type drafting system of using on a kind of spinning machine, is specially adapted to the spinning of various spun yarns, belongs to field of textile machinery.

Spinning machine makes rove become the spun yarn process, is to draw, press the roller of fiber and the cooperation of roller to realize by several roads on the spinning machine.Generally speaking, roller and roller constitute three assembly and close, difference according to the spinning kind, the rotating speed of each roller also requires difference, thereby make spinning fiber (24) be subjected to certain pulling force, simultaneously, fiber is subjected to the split high speed rotation of (7) of the yarn that rolls and twine spun yarn of roller (4) and roller (6), make spinning fiber in whole process, be subjected to act in pulling force, pressure, three kinds of power of torsion, thereby spin evenly qualified spun yarn fiber.The effect of drafting system is to make the certain satisfactory pressure of generation between roller (4) and the roller (19), guarantees the dried all requirements of degree of colluding of spinning fiber quality symbol and ribbon.

In the existing drafting system, use a kind of spring drafting system (see figure 1) usually, it is made up of outer cover (1), hook (2), spring (5), clamp (3) and roller (4).Spring (5), clamp (3) and roller (4) are connected as a single entity, and spring (5) top is fixed on the outer cover (1), and the other end connects roller (4).During work, spring (5) produces certain pressure, three rollers (4) are acted on three rollers (6), make pressurized between fiber roller (6) and the roller (4), split ribbon that (7) propose to reverse when doing (8) at the yarn of at a high speed rotation, promptly cooperate simultaneously and draw, turn round, just spin qualified spun yarn fiber.This kind drafting system, because each drafting system requires different to the pressure of three rollers, and guarantee the corresponding roller pressure of different drafting systems unanimity again, this has just proposed very high requirement to spring, but spring (5) is subjected to the influence of factors such as material and heat treatment, use for a long time in addition, fatigue strength differently descends, and causes the imbalance of elastic force.Pressure differential between generation is splited and splited is bigger, and yarn quality is poor, and the ribbon evenness is low.And periodic replacement adjustment installation difficulty is big, and operation, maintenance are also inconvenient.

The Yi Na of another kind of West Germany (INA) drafting system (see figure 2) in the prior art, be by comprising outer cover (1), hook (2), linkage type lever (9), (10), (11) and clamp (3), roller (4), air bag or cylinder (12) are formed.During work, by air bag or cylinder (12) source that is used as power, with pressure, through linkage type lever (9), (10), (11) pressure requirement by each roller, power is decomposed transmission, the requirement difference because the spinning fiber of different cultivars, the pressure on the roller space, roller also requires corresponding pressure and spaces; This structure is to guarantee spacing of pressure on the roller and roller by the arm of force that adjustment screw (13) is regulated linkage type lever (9), (10), (11).Because the adjustment to each drafting system is difficult to guarantee in full accord, adjust the existence of error in addition, two pressure differentials between the corresponding roller of drafting system are increased, thereby increased split pressure differential between (7) of two yarns, the bar evenness of fiber is also lower.And adjust also inconvenience, be difficult to guarantee with power and the rapport of spacing.

The purpose of this utility model is to avoid the weak point in the above-mentioned technology, made a kind of full pneumatic type drafting system, reach according to the ribbon of different cultivars and do requirement, carry out the pressure adjustment between roller and the roller simple and reliablely, this has just improved the ribbon evenness greatly.

Task of the present utility model is finished as follows: adopted to be easy to control, compressed air source easy to adjust, it is stable to have made relative pressure, several groups of internal diameter sizes, cylinder that sectional area varies in size (14) and gas distribute conducting connecting rod (15) composition actuating system to guarantee the uniform and stable and satisfactory pressure of roller (4) to roller (6) with this, and the pressure of roller (4) and the coordination of spacing, full pneumatic type drafting system contains outer cover (1) and links to each other with spinning machine body (26), play fixing and the effect of this device of support, cylinder (14) is made up of with piston (17) two large divisions cylinder body (16) again, is furnished with sealing ring (20) therebetween.Piston (17) rod end have controlling party to the guide groove (18) of spacing usefulness, guide and limit pin (19) passes guide groove (18), its two ends are fixed on the cylinder body (16), piston (17) masthead end is connected on the roller (4) by clamp (3).During work, compressed air flows to gas from liquid passage inlet (21) and distributes in the conducting connecting rod (15), arrive the inner pushing piston of cylinder (14) (17) through gas (16) air admission hole (22), because the effect of guide groove (18) and guide finger (19), piston (17) is being with clamp (3), roller (4) moves and presses to roller (6), its pressure size is determined by adjusting bleed pressure and cylinder body (16) inner carrier (17) diameter, this just uses the pressure of each roller (4) on the drafting system to coordinate mutually, for different drafting systems, guarantee the pressure unanimity on the corresponding roller (4), reduced the pressure differential between the different drafting systems.According to spacing of difference roller (6) that require of spinning kind, be to guarantee that by adjusting screw (25) spacing of roller (4) reaches, and the pressure on the roller (4) and unaffected, so this device improved the uniformity that same one ribbon does and different one ribbon do between the uniformity.

Now elaborate in conjunction with the accompanying drawings:

Fig. 1 is spring drafting system figure.

Fig. 2 is air pressure lever drafting system figure.

Fig. 3 is the utility model partial sectional view.

Fig. 4 is a work sheet of the present utility model.

Find out that from the full pneumatic type drafting system shown in Fig. 3, Fig. 4 it is made up of outer cover (1), hook (2), clamp (3), roller (4) and actuating system.Outer cover (1) is connected with spinning machine body (26), it fixes and is supporting whole drafting system, one roller wheel is housed in the hook (2) is used to clean spun yarn, three rollers (4) that three clamps (3) of piston (17) masthead end are connected, with be that elasticity contacts between three rollers (6), purpose is to roll ribbon and does (8), and the pressure actuating system comprises that the cylinder (14) of three different inner diameters and two gases distribute conducting connecting rod (15).Have axial channel (18) on piston (17) bar in the cylinder body (16), use guide and limit pin (19) passes guide groove (18) control piston (17) stroke and the rotation on the piston (17), and the two ends of guide and limit pin (19) are to be fixed on the cylinder body (16).For the gas that prevents pushing piston (17) leaks away the build-up of pressure shakiness and wastes energy between piston (17) and cylinder body (16), added sealing ring (20).Have an air admission hole (22) behind each cylinder body, air admission hole (22) distributes conducting connecting rod (15) to be communicated with gas.Difference according to the spinning kind, with adjusting the requirement of spacing that screw (25) reaches roller (4), do not influence cylinder (14) to the pressure on the roller (4), the drafting system of each adopts same pneumatic supply, so between the different drafting systems---the pressure differential between different yarns split is very little, has improved yarn quality.The rove fiber enters from an end, and when rolling, because the rotating speed difference of three rollers (6), fiber is subjected to tension again through roller (6) and roller (4); On the yarn that other end winding spun yarn rotates at a high speed splits (7), make fiber be subjected to torsion again, these three kinds of power are coordinated to combine, and spin the higher spun yarn fiber of bar evenness.

The utility model adopts full pneumatic type pressurization, adjusts external source of the gas as long as stablize, and the pressure on the roller just can be consistent.The pressure differential that two adjacent two yarns split between (7) is no more than 0.2kg, and the influence of the poor kind of not spinned of splitting, as long as adjust spacing of cylinder (14) by spacing of roller (6), roller (4) can not change the pressure on the roller (6), it is stable that this device has been controlled isostasy, and the difference of splitting is little, does not need frequent correction, replacing again, so the yarn quality height, the ribbon evenness is also high.

Claims (3)

1, a kind of full pneumatic type drafting system that is used on the spinning machine, it is by outer cover (1), hook (2), clamp (3) and roller (4) and adjustment screw (25) are formed, and it is characterized in that cylinder (14) parts and gas that actuating system is varied in size by several groups of internal diameter sizes, sectional area distribute conducting connecting rod (15) to form.

2, drafting system according to claim 1 is characterized in that piston (17) the bar portion in the cylinder (14) has axial channel (18), and the masthead end connects clamp (3).

3, drafting system according to claim 1 and 2 is characterized in that the guide and limit pin (19) in the cylinder (14) passes guide groove (18), and its two ends are fixed on the cylinder body (16) of cylinder (14).

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