JPS6135289B2 - - Google Patents

Description

Claim 1: A spindleless spinning machine having a framework on which a rotary drive device, a spinning station, a yarn take-up device, and a yarn winding device are arranged; a spinning chamber mounted on a framework such that it can be pulled away from the device; and the fiber feeding device; a drive shaft of the yarn take-up device being mounted on the framework, and a push roller in an operating position. a plurality of rollers are mounted so as to be elastically pressed against the drive shaft and can be pulled away from the drive shaft; and the husband and wife of the yarn winding device are mounted on respective spinning stations. In a spindleless spinning machine which is constructed and includes a bobbin carrier and a traversing device: the respective pressure roller 23 is mounted in the housing 14 of the respective spinning chamber 5, and the respective yarn winding device 3 is engaged with a rotary drive. A spindle-less spinning machine characterized in that it is provided with an operating connecting member 31 for connecting with the housing 14 of each spinning chamber 5 in order to release the engagement.

2. Each pressing roller 23 is mounted on the housing 14 of the respective spinning chamber 5 by a spring-loaded lever 24, one end of which is swingably connected to the housing 14 of the spinning chamber 5; The spinning machine according to claim 1, wherein the other end supports the shaft 25 of the pressing roller 23.

3 Each bobbin carrier 27 is a traverse device 28
It has the form of a swinging lever which is elastically pressed in the direction of
A swinging lever 32 with two arms is installed on the framework 1 in the space between each spinning chamber 5 and each bobbin carrier 28, and one arm of the lever is connected to a bobbin carrier. 〓
27 and the other arm contacts the housing 14 of the respective spinning chamber 5 in order to pull the package 30 away from the traversing device 28 when the housing 14 of this spinning chamber 5 is pulled away to the inactive position. A spinning machine according to claim 1.

4. The spinning machine according to claim 3, wherein the swinging lever 32 with two arms has a shape of a V-shaped swinging member.

5. When the conoid drum 28, which has no drive means of its own, is used as a traversing device, the respective pressure roller 23 is mounted in such a way that said roller enters into frictional contact with the conoid drum 28a in the working position. The spinning machine described in item 1.

6. A spinning frame according to claim 5, wherein each pressure roller 23 has a plurality of rims 35 and the drive shaft 22 has a circular recess into which the rim 35 of the pressure roller 23 is introduced in the working position.

TECHNICAL FIELD The present invention relates to textile engineering and in particular to the construction of machines for spindleless spinning.

BACKGROUND OF THE INVENTION Spindleless spinning machines, which have been known for a relatively long time, reduce the time required to convey yarn and remove yarn breaks, and to start up the spinning frame and the individual spinning stations of the spinning frame. The problem continues to demand solutions to this day. Modern spindleless spinning machines have a significant number of spinning stations (more than 200), and the productivity of the spinning machine as a whole depends on the yarn conveyance and several other auxiliary operations being carried out when starting the machine. It is well known that the amount of time required to carry out the When new spinning machines are designed and old spinning machines are improved, great attention is paid to the problem of reducing the time required to perform multiple auxiliary operations by partial mechanization and automation. This must be for the reasons mentioned above.

It should be mentioned that many of the auxiliary operations that need to be performed when repairing yarn breaks are mechanized in modern spindleless spinning machines. For example, a framework is provided and spinning stations are disposed on the framework, each spinning station having a fiber feeding device and a yarn forming and twisting rotor with a clamp and positioned on the framework. Spindleless spinning machines (see German Patent No. 1560313, published March 4, 1973) are known in the art, and are equipped with a spinning chamber. In addition, the spinning machine includes a yarn take-up device and a yarn winding device in the form of a pair of rollers. A yarn strain gauge, which is electrically connected to the drive of the fiber supply device, is in contact with the yarn. When a thread breakage occurs, the strain gauge sends a control signal and the drive of the fiber feeder is stopped. At this moment, the thread forming and twisting rotor is disengaged from the drive and the respective thread winding devices are stopped. To restart the spinning process, the yarn is fed from the winding device to the yarn-forming and twisting rotor, which is starting to rotate. Then, the drive device of the fiber supply device is started and splicing by twisting the yarn is performed. When the splicing process by twisting is completed, the yarn being taken off is directed between a pair of rollers of a yarn take-up device, and the spinning process continues.

A clear advantage of the spinning frame considered here is that the equipment it has allows for relatively rapid removal of yarn breaks. However, the withdrawal of the yarn upon completion of the splicing process by twisting continues to be a problem, and this results in variations in the thickness and uniformity of the structure of the yarn over a length.

Spindle-less spinning machine (January 2, 1976), whose structure has been improved to overcome this drawback
(see specification of the Federal Republic of Germany, Granted Application No. 2,429,645, published on 1999) are also known in the art. The spinning machine has a framework on which a rotary drive and a spinning station are arranged. Each spinning station includes a spinning chamber having a fiber feeder and a housing positioned on the framework. The housing can be pulled away from the fiber supply device.
In addition, the spinning machine has a yarn take-off device, the drive shaft of which is mounted on the framework, and which is elastically pressed against the drive shaft when in the working position and can be pulled away from the drive shaft. and a plurality of pressing rollers placed on the. In addition to the above devices, the spinning machine is provided with yarn winding devices, each of which is located near a respective spinning station and includes a bobbin carrier and a traversing device.

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A defining feature of the spinning machine is that the pressure roller rests on a rotatable lever that is pivotally connected to the framework. When the lever placed on the pivot is in the actuated position, the pressing roller is engaged with the drive shaft. If the yarn breaks at a certain spinning station, a lever placed on the respective pivot is rotated to a position that causes the drive shaft to disengage from the push roller placed on the lever. The spinning machine has a yarn strain gauge that sends control signals to the drive of the brake and the drive of the fiber feeder.

To engage the pressure roller on the drive shaft, each lever is manually lifted into the actuated position. This allows the yarn to be taken off in time with the completion of the splicing process by twisting, thus preventing changes in thickness and uniformity of structure. Each bobbin carrier is in the form of a rocking lever and allows for manual removal of the package from the traversing device when repairing a thread break and returning the package to the traversing device during start-up.

Thus, if necessary to repair the yarn break and to start up the spinning station, the following auxiliary operations will be performed. That is, after separating the housing of the spinning chamber from the fiber supply device, separating the package from the traversing device, separating the pressing roller from the drive shaft, and completing the splicing by twisting the yarn, It will be returned to its original position. It is quite obvious that the time required to perform these operations limits the productivity of the spinning machine as a whole. It should be mentioned that the non-productive time required to carry out these multiple auxiliary operations in the spinning room in which such a spinning machine is installed also largely determines the number of workers working on the machine. In addition, when the spinning station is being started up, the simultaneity of advancing the yarn drawer and the package to the traversing device is varied from time to time, so that when a traversing device with a conoidal drum configuration is used, multiple A coil may be formed or the thread may be cut when a traversing device with a dry-verse configuration is used.

DISCLOSURE OF THE INVENTION It is an object of the invention that the construction of a spinning frame uses a specified number of auxiliary operations, including pulling apart and advancing the housing of the spinning chamber when starting and stopping any spinning station. It is an object of the present invention to provide a spindleless spinning machine which makes it possible to simultaneously disengage and simultaneously engage a yarn take-up device and a yarn winding device in this spinning station.

The object of the invention is: a spindleless spinning machine having a framework on which a rotary drive, a spinning station, a yarn take-up device and a yarn winding device are arranged; comprising a spinning chamber having a housing installed and removable from the fiber supply device; and when the drive shaft of the yarn take-off device is installed on the framework and the push roller is in the operative position. a plurality of pressing rollers are elastically pressed against the drive shaft and mounted so as to be removable from the drive shaft; and each of the yarn winding devices is installed in a respective spinning station, and a bobbin carrier and a traversing device: according to the invention, each pressing roller is mounted in a housing of a respective spinning chamber, and each yarn winding device is disengaged from the rotational drive and This is achieved by being operatively connected to the housing of the respective spinning chamber for engagement.

It is possible to carry out only such auxiliary operations, such as pulling apart and advancing the housing of the spinning chamber in the process of yarn breakage repair, in the spinning station where such a device of the spinning machine is located, while a yarn take-off device and The operations of starting and stopping the thread winding device are carried out automatically at the same time as performing said auxiliary operations.

It is very clear that this makes the handling of the machine faster and easier, improves the productivity of the machine and reduces the number of workers working on the machine. In addition, starting the yarn take-up device and the yarn winding device at the same time provides the same yarn performance and quality throughout both the startup phase and the operating phase of the spinning frame.

each pressing roller is mounted in the housing of the respective spinning chamber by a spring-loaded lever;
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Preferably, one end of the lever is swingably connected to the housing of the spinning chamber, and the other end supports the shaft of the pressing roller. This arrangement of the pressing rollers is very simple from a structural point of view;
On the other hand, it makes it possible to adjust the force of the pressure roller on the drive shaft within a wide range, if necessary.

Each bobbin carrier is in the form of a lever mounted on a pivot that is elastically pressed in the direction of the traversing device, on the free end of which the package axle rests, and two oscillating Preferably, a lever with an arm is installed on the framework in the space between the respective spinning chamber and the respective bobbin carrier. When the housing of this spinning chamber begins to be withdrawn into the inoperative position, one arm of the two-armed lever contacts the bobbin carrier, and the other arm engages the respective spinning shaft in order to withdraw the package cage from the traversing device. is in contact with the chamber.
Such an embodiment is preferred if a traversing device or a conoidal drum with its own drive means is used as the traversing device.

From a structural point of view, a two-arm lever in the form of a V-shaped swinging member is the simplest.

In the case where a conoid drum without its own drive means is used as a traversing device,
Advantageously, each pressure roller is mounted in such a way that it provides frictional contact of the pressure roller with the traversing device in the operating position. This embodiment allows for the replacement of either conoid drum, if necessary, without stopping the entire spinning machine.

Advantageously, each pressure roller has a rim and the drive shaft has a circular recess into which the rim of the pressure roller is introduced when in the operating position. This makes it possible to provide the necessary yarn strain in the area from the yarn take-up device to the yarn winding device by means of a difference in linear speed, and contributes to a tighter winding of the package.

[Brief explanation of the drawing]

In the figures: FIG. 1 shows a principle diagram of a spindleless spinning machine according to the invention; FIG. 2 shows an embodiment of a spinning machine according to the invention with a link-operated connection in the working position; FIG. FIG. 4 shows the embodiment of the spinning frame according to FIG. 2 in the inactive position; FIG. The embodiment of the spinning machine shown in FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1 of the accompanying drawings, a spindleless spinning machine comprises a framework 1 on which a plurality of spinning stations are arranged. , thread take-up device 2, and thread winding device 3
and a rotational drive (not shown). The respective spinning positions are a fiber supply device 4 and a spinning chamber 5.
Consists of. The fiber supply device 4 includes a sliver container with guide walls 6,7. A supply roller 8 and a spring-loaded pressing plate 9 are placed at the exit portion of the fiber supply device 4 . Opening drum 11 with toothed members 12 in housing 10 of fiber supply device 4
will be installed. An outlet hole 13 is formed in the housing 10.

The spinning chamber 5 has a housing 14 mounted on the framework 1 using a cylindrical pivot 15 . The housing 14 can be separated from the fiber supply device 4. A yarn forming and twisting rotor 16 with a ball clamp 17 is connected to the housing 14 of the spinning chamber 5.
positioned within. An inlet opening 18 is formed in the housing 14 of the spinning chamber 5 which fits snugly into the outlet hole 13 of the fiber feeder 4 when in the operating position. The yarn-forming twisting rotor 16 has a tubular mandrel 19 that is in contact with the drive belt 20 when the spinning chamber 5 is in the operating position. A strain gauge 21 is installed at the outlet of the spinning chamber 5, which is electrically coupled to the drive (not shown) of the fiber supply device 4.

The yarn drawing device 2 comprises a drive shaft 22 which passes through all the spinning stations of the spinning machine and is connected to a rotary drive (not shown), which drive shaft 22 is mounted on the framework 1. It is placed. The thread drawing device 2 also includes a pressing roller 23
, and each of the pressing rollers is elastically pressed against the drive shaft 22. Each pressing roller 2
3 is mounted on the housing 14 of the spinning chamber 5 in such a way as to allow the push roller to pull away from said drive shaft 22 in this particular case according to the invention. For details, the pressing roller 23 is a sprite.
It is placed on the housing 14 of the spinning chamber 5 using the spinning load lever 24. One end of the spring-loaded lever is swingably connected to the housing 14 of the spinning chamber 5, and the other end of the lever is connected to the pressing roller 23.
supports the shaft 25 of. A thread guide 26 is fixed on the same spring loaded lever 24.

Each yarn winding device 3 is positioned at a respective spinning station of the spinning machine and includes a bobbin carrier 27 and a traversing device 28. All traversing devices 28 are connected to a rotary drive (not shown). Each bobbin carrier 27 has an axle 29 on which a package 30 is placed. Traverse device 2
It is quite clear that the structure of 8 can be varied. For example, the traverse device can have a traverse shape, but the traverse device 2
A variant embodiment in which 8 has the shape of a conoidal drum will be described later in the specification. Each bobbin carrier 27 of the thread winding device 3 has the form of a rocking lever that is pressed elastically in the direction of the traversing device 28, on the free end of which a shaft 29 rests.

According to the invention, each yarn winding device 3 has an operative connection 31 with the housing 14 of the respective spinning chamber 5, which operative connection 31 is connected to a rotary drive (not shown in the figures). and is designed to engage and disengage the thread winding device. The structure of the actuation connecting member 31 can be varied. The following two embodiments of the spinning machine are preferred, namely an embodiment with a link-type actuating connection member and an embodiment with a friction-type actuating connection member.

In the embodiment of the spinning machine shown in FIG. 2 of the accompanying drawings, the working connection 5 of the thread winding device 3 with the housing 14 of the spinning chamber 5 is a link-type working connection.

According to the present invention, the swinging lever 3 with two arms
2 is each spinning chamber 5 and each bobbin carrier 27
is installed in framework 1 within the space between. One arm of the two-armed swinging lever 32 contacts the bobbin carrier 27 and the other arm contacts the housing 14 of the respective spinning chamber 5. All traversing devices 28 are connected by a common shaft 33 to a rotary drive (not shown). Lever 3 with two arms placed on a pivot
2 has, according to the invention, the shape of a V-shaped rocker member and is pressed elastically against the bobbin carrier 27 by a spring 34. One arm of the two-armed swinging lever 32 is in contact with the housing 14 of the spinning chamber 5 when the housing 14 is placed in the working position, and when the housing 14 of the spinning chamber 5 is turned into the inactive position. Housing 1
Get out of contact with 4. This is best illustrated in Figure 3 of the accompanying drawings.

FIG. 4 of the accompanying drawings shows an embodiment of a spindleless spinning machine in which the thread winding device has a frictionally actuated connection 31 with the housing 14 of the spinning chamber 5. FIG. This embodiment is desirable when the conoid drum 28a is used as a traversing device. In this case, each pressing roller 2
3 is mounted in such a way as to allow the pressure roller to come into frictional contact with the conoidal drum 28a when in the actuated position. The thread winding device is thus connected to a rotary drive (not shown) via the pressing roller 23 fixed to the housing 14 and the drive shaft 22. No. 5 of the attached drawings
As best shown in the figure, when in the inactive position, the pressure rollers 23 are pulled apart and the drum 2
There is no frictional contact with 8a. For the purpose of providing a dense winding, each pressing roller 2
3 has a plurality of rims 35 and the drive shaft 22 has a plurality of circular recesses. (See Figure 6 of the attached drawings). The rim 35 of the pressing roller 23 is introduced into the circular recess of the drive shaft 22.

The spindleless spinning machine under consideration operates as follows.

In each spinning station, the fiber sliver is fed via a container of sliver to a fiber feeding device 4 and the sliver is fed by feeding rollers 8 to an opening drum 11 . The rotating opening drum 11 combs the fiber slivers with its teeth 12 and loosens the entanglements that exist between the fibers. The opened fibers produced form a continuous flow through the outlet hole 13 and the inlet opening 18.
It is supplied to the spinning chamber 5 through. Yarn forming and twisting rotor 16 rotating under the action of a drive belt 20
collects multiple fibers to form a fiber bundle. The fiber bundle passing through the ball clamp 17 is twisted and forms a thread. The produced yarn is taken out from the spinning chamber 5 by a drive shaft 22 and a pressing roller 23,
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A strain gauge 21 continuously controls the strain of the yarn.
The produced yarn is then supplied to a yarn winding device 3 and wound onto a package 30.

If the yarn breaks, the strain gauge 21 disengages the drive (not shown) of the fiber feeder 4 and the spinning process at the particular spinning station is stopped. In order to eliminate yarn breakage, the housing 14 of the spinning chamber 5 is rotated around a cylindrical pivot 15 in order to be separated from the fiber feeding device 4. Simultaneously with the separation of the housing 14, the actuating coupling member 31 disengages the thread winding device 3 from the rotational drive (not shown).
The end portion of the yarn is then introduced from the package 30 through the yarn guide 26 into the spinning chamber 5 and fixed by the ball clamp 17. Once this is done, the housing 14 is turned into the operating position. While the housing 14 is being rotated, the pressing roller 23 catches the yarn entering the field of action of the strain gauge 21. A yarn strain gauge 21 sends a control signal and engages a drive 4 (not shown) of the fiber feeder 4. At the same time, the pressing roller 23 begins to interact with the drive shaft 22 and a uniform take-off of the twisted and spliced yarn is carried out. At the moment when the housing 14 returns to the working position, the working coupling member 31 is engaged, the thread winding device 3 is connected to a rotational drive (not shown) and the thread is synchronous with the thread take-up. Then, winding onto the package 30 is started.

The embodiment of the spinning machine shown in FIG. 2 of the accompanying drawings operates as described above when yarn is being made. When clearing a yarn break, for example when stopping and starting a spinning station, a plurality of devices are engaged and disengaged as described below. When the housing 14 of the spinning chamber 5 is turned into the inoperative position (see Figure 3 in the attached drawing)
(see figure), one arm of the two-armed swinging lever 32 is no longer supported. Spring 34
The lever 32, exerted by the lever 32, rotates, thereby rotating the bobbin carrier 27 together with the other arm of the lever and pulling the package 30 away from the traversing device 28. When the housing 14 returns to its operating position (see FIG. 2 of the accompanying drawings), the lever 32 biased by said housing 14 rotates in the opposite direction against the force of the spring 34. , and the bobbin carrier returns to its initial position, thus pressing the package 30 against the traverse device 28.

The embodiment of the spinning machine shown in FIG. 4 of the accompanying drawings operates as described above when making yarn. During yarn breakage clearance, ie, when the spinning station is stopped and started, a number of devices are engaged and disengaged as described below.

When the housing 14 of the spinning chamber 5 is turned into the inactive position (see FIG. 5 of the accompanying drawings) the push roller 23 is pulled out of frictional contact between the drive shaft 22 and the traversing device 28 and thus the traversing Shaking device 28
Yarn take-up and yarn winding are simultaneously stopped by disengaging the actuating connection connecting the yarn to a rotary drive (not shown). When the housing 14 returns to its working position (see FIG. 4 of the accompanying drawings), the pressing roller 23, which comes into frictional contact with the drive shaft 22 and the traversing device 28 at the same time, moves the thread drawing device 2 and the thread winding device. It is quite obvious that the two elements are simultaneously engaged.

When the spinning process is carried out, the drawing of the yarn takes place in the area extending from the yarn take-up device 2 to the yarn winding device 3. This is because the surface of the pressing roller 23 between the plurality of rims 35 comes into frictional contact with the drive shaft 22,
Rotation is then achieved by being applied to the traversing device 28 by a plurality of rims 35. The drawing of the yarn and the dense winding on the package 30 are achieved by the difference between the linear velocity at the beginning and the end of this section.

Industrial Applicability The present invention is useful in the textile industry for the production of yarns from natural fibers, man-made fibers and mixtures of these fibers by spindleless spinning techniques, as well as for the production of yarns from natural fibers, man-made fibers and mixtures of these fibers, as well as from low quality raw materials (e.g. It will most efficiently be used to convert short fibers, fiber raw materials with contaminants, etc.) into yarn.

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