SU69266A1 - Single-strap exhaust - Google Patents

Description

Filed January 31, 1946 to the People's Commissariat of the textile industry

USSR No. 2473 (342496)

Published September 30, 1947

Single-stranded exhaust devices with a strap covering rollers to the middle cylinder using a T-shaped guide pivotally mounted on the axes of the same roller, equipped for control of the fibers with a roller that interacts with the upper working branch of the strap, are already known.

The proposed single-belt exhaust machine has the feature that in order to be able to fit the working branch of the strap to the roller interacting with it, the cleaning roller tensioning two or more straps is mounted in a swing frame with a counterweight.

FIG. 1 shows a cross-section of one exemplary form of the apparatus; FIG. 2 is a top view of a portion of the apparatus of another exemplary embodiment; FIG. 3 is a cross section of another embodiment of the apparatus; FIG. 4 is a top view of a modified part of the apparatus of FIG. 2, 3, FIG. 5-cross section of part

apparatus of FIG. 1 when „it is used as a two-strap, FIG. b - side view of a possible embodiment of the spring load of the upper rollers of the apparatus according to FIG. 1 and in FIG. 7 is a cross-section of a part of a view; 1, a modified form of the embodiment to the apparatus of FIG. 1-3.

As can be seen from FIG. 1, the exhaust apparatus has three exhaust pairs formed by the front roller 7 and the cylinder 2, the middle rollers 3 and 4 receiving movement from the cylinder 5, and the rear roller 6 and the cylinder 7. The average exhaust pair 3-4 is located with a strong A forward roll, using oblique grooves on the cross and slope 8 (resting on the front of the cylinder rack), forms a pulling field by means of a short strap 9 attached to the roller 4 and the T-shaped guide 10 (Fig. 2). Together with the roller 3, covered with the casing and under load, the strap 9 creates a stretched strap field along the arc ab. A feature of this most important

It is the creation of a uniform and constant clamping of the fibers at point b by means of a guide W rotating on the axis 4 of the roller, allowing the strap 9 to be pressed against the roller 3 by the action of the tensioning roller 77, loaded through the frame 72 by a replaceable weight 13.

Regardless of the unevenness in the thickness of the strap, roving or inaccurate installation of the roller 3, the correct clamping on the arc a-b is maintained here with a gradual decrease in pressure on the fibers from a to b.

Pressed or otherwise made T-shaped guide W, one for two straps, hinged with a loop on the middle cheek 14 of the fixed (free) axis of the roller 4, with which it can be removed together with the straps as one piece, after releasing the load for cleaning or shifts shift.

In order to prevent the strap from moving along the roller 4, the guide has on each side of the strap the cheek 75, and to prevent the guide from turning down, when removing the cleaner 77, there are side projections 76 resting on the front ends of the slopes 8 with a small gap. The tensioning roller cleaner 77, covered with a cloth or other material, has a small diameter for better collection of down and is laid with spikes in the depressions at the two front ends of a stamped or cast frame 12 swinging around the axis 77. Frame 12 can be made with two or one strap each and is placed or removed from the axis 77 independently of the other frames from which it is separated by elastic clamps 18. The axes 77, in turn, are mounted on each staff independently.

The device of the tensioning roller-cleaner of the strap 77c frame 72 is a characteristic feature of the device, which allows to improve the working conditions of the strap by reducing slip, due to an increase in the arc of the circumference of the strap 9 of the roller 4 under the action of tension, and also allows to simplify and

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to make a more compact design of the exhaust apparatus, while at the same time facilitating the maintenance of the cleaning of the strap and the cleaner and the production of the latter.

The exhaust apparatus is provided with a load on the upper rollers through the rotary saddle 19, which simultaneously loads all three exhaust pairs and is able to release the middle and rear ones by simply turning around the roller 7 to the hook 20 (as indicated by the dotted line), which greatly simplifies maintenance.

This is achieved by directing the point of support of the total load-pin 27 along the special guideway of the two-sided slot 22 in the saddle 19, which makes it possible to reduce the arc of rotation of the saddle while maintaining its stable position in the raised view and observing the required distribution of loads in the working position. The load is distributed over the middle and rear rollers through an auxiliary saddle 23 placed inside the saddle 19 and connected to the latter with a pin 24 entering the grooves 25 of the saddle 19. To maintain the position of the saddle 23 when lifting (releasing the load), the saddle 19 has brackets 25a and to find its place when lowering, the saddle 23 has a deep bearing with bevels 26 supported on the rear roller.

The design of the saddle 19 provides for the possibility of changing the wiring between the middle and rear pair, as well as maintaining the direction of pressure on the middle roller along its line of support on the middle cylinder 5. The saddle 23 is made of a material that does not require lubrication (plastic, etc.), or has lubrication holes with corresponding holes in saddle 19, or rollers are made with free axles.

The load of the saddles is made spring and adjustable from the spring 31, connected to the front hook, a combo of 20 and 27, through the shell 28, which has a locking protrusion 29,

which enters the groove of the box 30. The upper end of the ribs is supported on the bottom of the fixed box 32 attached to the cylinder bar and entering the box 30. In order to avoid turning the box 31 and changing the load, the edge of the box has a protrusion 33 entering into the groove 34 of the box 32 1 giving it the ability to move only along the axis.

Thanks to this device, the load on the rollers can be installed with great accuracy and maintained in this position, checked during repair with a dynamometer or spring weights. For this, the dynamometer hook touches the slot 22 and pulls away along the load line until the axis of the front roller 7 is released from the load, which is determined by turning the axis by hand. According to the reading of the dynamometer, the required pressure of the spring J7 is set by the flap 28, the same for the entire mask.

Thus, together with the introduction of an elastic spring load on all exhaust pairs, the well-known disadvantage of the existing spring loads on the windrowers is eliminated, consisting in the inability to adjust the load value.

In order to avoid the breaking of the established load by arbitrary turning of the shearer, the working woman of the shears can be replaced with the appropriate turnkey nut.

In the embodiment of FIG. 2-4, stray seals 35 or 35a are applied between the first and second exhaust vapors. The half-closed seals with slots 36 for driving a roving, which prevent the latter from popping out, work in pairs. When connected by tube 37, they are loosely seated on the wire 38 and, when moved by a roving, they rest on the front cylinder 2, which tends to lead them to the clamp.

The guide wire is connected to the pivoting guide of the strap 9, whereby the seals are as one piece; displacing field, continuing it, and fulfilling several functions: a) compaction of highly sparse 6 fibers into this place into a compact mass, b) changing the direction of the free front ends of the fibers moving at the exit of the displacement along the arc of the middle upper roller towards the clip the front pair (due to the ceiling seal 39), which prevents their release into fluff, c) maximum approach of the fibers coming out of the slide clamp to the front pair in the previously obtained order. Methods for securing seals on a slide holder are shown in FIG. 2 and 4. In the first case, a spring clip is offered by the ends 38a of the pro-shell 38 at both edges of the front part of the guide, the ends 38a in the working position helping to guide the movements. In the second case, the fastening of the wire 38 is carried out by winding its two ends into the front of the guide 10. In both cases, the seals can be removed for cleaning and replaced with the roller 4 and the movements and then separated from them. In this case, the second sealer is turned down.

A characteristic feature of the seals 35 and 35a is their adaptability to the self-filling of a roving conducted through the exhaust pairs. For this, the inlets of the seals are made wide so that the roving in any position of the driver can get into them. This is facilitated by the connection of the seals to each other, helping to catch a rove in one of the seals when the other is working.

The seal 35a is adapted to the wider range of the rolls due to the asymmetrical arrangement of the outlet, and also has a simplified shape of the walls of the slot. In this case, the directions of the side upper walls and the slits, as in the seal 35, contribute to the narrowing of the sliver 5 by changing its movement to the outflow opening in the horizontal and vertical plane, and securing the sealants, without compromising their freedom of movement, prevents from disassembly during assembly. rollers.

39.1

The upper cleaners 40 have faces on their surface to create a scrubbing effect on the rollers, which should improve their cleaning while maintaining the winding ability of the cleaners.

The load of the upper rollers in the apparatus according to FIG. 3 is carried out from the load through a lever having the form of a beam of equal resistance and acting as a spring. This eliminates harmful fluctuations in the load on all rollers (caused by inertia of the load when shocked), without complicating the load system.

FIG. 5 shows the design of a two-bag device based on the above-described single-slider unit. With the same device of the lower strap and load system, the device is characterized by the use of the upper strap 47, worn on the middle upper roller For a large diameter, having a rhombic knurling, or other surface of increased friction and, if necessary, lateral flanges 42. The strap 40 fits the roller tightly over the larger parts of its surface, and thus fully perceived its circumferential speed, its lower part simultaneously contacts on a large arc with the lower strap P and where the latter begins to turn down around on ruler W, strap 40 forms a loop 43 with a fork 44 (three-or two-thorn) over an arc equal approximately in degrees to the arc formed by contact with the strap 9 of the Za roller, and the following advantages are created:

1) The discharge clip of the strap floor is transferred significantly closer to the clip of the front pair (up to 10 12 mm).

2) Accordingly, the length of the strap floor a-6 increases to point b, which increases control over all fibers, especially short fibers, while maintaining a constant pressure and gradually decreasing pressure generated by the turnable guide and other parts.

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3) By installing the fork 44 at the point of bending of the straps, it is possible to install a solution of it that would maintain a constant weak clamp of the fiber due to the elasticity of the straps and would be sufficient to absorb all local thickenings.

FIG. 6 shows a variant of a spring-loaded load using a lever 45, pivoting on support 46. The short lever arm 45 loads the lower end of the hook 20, and the long arm is loaded with a spring 47 fixed on the roller 48 slopes. The spring can be closed to down and adjusted by nuts 49, 50.

The device of FIG. 6 allows a significant reduction in the pressure force of the necessary spring and facilitates the unloading of the rollers using the lever 45.

FIG. Figure 7 shows a modification of the guide 10, with the addition of a rigidly connected rear pad 57, equal in length to the roller and fulfilling a double role:

1) To serve as a counterweight to the sender 10 to maintain a constant clamp between the roller 3 and the strap 9 when removing, or not, the tension roller 77, without using the stops 76 of FIG. 1 and 2.

2) Serve as a guide tray for self-filling the rovings into the middle exhaust pair when refueling or breaking the rovings without removing the upper rollers, which is especially important for a forced load.

Removing and placing in place of the rollers with rollers 4 and the guide W in FIG. I occurs together after unloading and removing the cleaner and roller 3 as follows: released roller 4 rises along the slope of the inclination up to the stop of the guide in the front roller 7. After this pinch the roller 4 is held between the incline 8 and the cross of the roller 3, and the stop 76 The guide passes through the slit of the cross to the exit. Frame 72 at this time rests on the non-operating necks of the cylinder.

The middle and rear rollers are unloaded after the upper rear cleaner is removed by turning the saddle 19 by the end until it stops on the hook. If it is required to free the roller 7, the hook 20 with the saddle 19 is removed in the usual manner and placed on the cylinder bar. Under load, after lowering the hanger onto the hook 20, it is necessary to press it in order for the support 21 to fall into place. The way to clean the roller 77 is normal.

The harness 19, the guide 10, the frame 72 and the spring cases are conveniently made of sheet steel by stamping. Plastic can also be used.

Subject invention

Claims (3)

I. One-slider exhaust system with a strap covering a roller on the middle cylinder and using a T-shaped guide pivotally mounted on The axes of the same roller, provided for controlling the fibers with a roller that interacts for a long time with the upper working branch of the strap, characterized in that in order to be able to fit this branch of the strap to the roller 3, which pulls two or more straps, a cleaning roller 77 mounted in a swing frame with counterweight, 2. An apparatus in accordance with claim 1, characterized by the use of vagal type seals mounted between the first and second drawing pairs on a bar attached to the edges of the guide. 3. The form of the apparatus according to claim I, characterized in that, if it is used as a double-strap, the front edge of the guide is provided with a wire fork fixed rigidly on it to form a loop from the strap covering the fiber control roller. FIG. 2 FIG. four .3 ffii / murumr / mmf / FIG. five 42 ". FIG. 6 "t -.- j