JPS5938452Y2 - A device for ensuring a time sequence for starting and stopping the operating means of individual groups at adjustable time intervals at the start and stop of operation of textile machines, in particular open-end spinning machines. - Google Patents

Description

[Detailed Description of the Invention] The present invention is designed to operate the feed roller, spinning chamber, yarn drawing part and winding part of the individual machines at adjustable time intervals at the start and stop of operation of textile machines, especially open-end spinning machines. A device for ensuring a time sequence for starting or stopping each operating element, such as the The purpose of this invention is to reverse the operation of the winding part so that simultaneous yarn splicing can be performed accurately at the time of startup.

In an open-end terminating machine in which a plurality of terminating units are arranged in parallel on one or both sides of the machine, disturbance of the spun yarn must be kept to a minimum when the machine is stopped and restarted.

Therefore, it is essential to perform several predetermined operations in an accurate time sequence.

That is, when the spinning machine is stopped, it is necessary to complete the spinning of the yarn by a large number of spinning units according to the time sequence, and when the spinning unit is started, it is necessary to drive each part in an orderly manner according to the time sequence.

It is desirable that the sequence of operations described above can be adjusted depending on the type of fiber material to be supplied and the type of final product, ie, yarn.

Furthermore, once set, each operation must be initiated and completed repeatedly in a predetermined sequence accurately and quickly.

For example, when the machine is stopped, the feeding of the fiber material to the spinning chamber is first stopped, the fiber material remaining in the spinning chamber is taken out as the final end of the yarn, and then the yarn drawing part and winding part are stopped. There is a need to.

At this time, the final end of the yarn being pulled out from the spinning chamber remains in the area where the negative pressure generated by the rotating spinning chamber is applied, and the machine stops without the yarn being pulled out from the draw-out tube. be done.

When restarting a machine that has been stopped as described above,
The yarn withdrawal, ζ-t and winding parts are reversed to introduce the yarn end back into the already rotating spinning chamber and to restart the supply of fiber material to this spinning chamber.

When the yarn end comes into contact with the fibers attached to the collecting surface of the spinning chamber, both the yarn drawing part and the winding part are rotated in the normal direction (rotation direction during normal spinning), thus - simultaneously spinning the yarn. The service will be resumed.

The time sequence of the individual steps is already carried out automatically in conventional open-end spinning machines by power-controlled mechanical means.

The device that controls this so-called thread joining operation usually consists of a combination of an electromagnetic brake and a time relay and switching relay that work together with a clutch, and is designed to operate in a timely manner based on a preset program. Adjusted with high precision.

However, in reality, even regulated relays have some degree of error due to variations in temperature, voltage, etc., and many machines have different start-up characteristics; cannot obtain sufficient reliability.

The above-mentioned drawbacks have been remedied by other known devices for controlling the splicing process.

Namely, this device uses a series of switches adjustable and distributed on a panel in the circular path of a rotating arm driven by the main motor of the machine via a clutch, the relative distance of which is determined by the , the reversal operation time and stop time of the drive system that are common to the entire machine such as the winding part, in other words, the time necessary to return the yarn end to the spinning chamber and to draw out the final fiber remaining in the spinning chamber as yarn. Set a suitable time.

And if the supply of power from the power supply is interrupted for any reason, the stop relay responds to this, and this relay interrupts its contact with the power supply circuit due to the voltage loss, and the specified Ensure an operating circuit that stops the machine in a time sequence.

The operating section that performs this sequence of operations receives the necessary power from an auxiliary power source formed by a capacitor.

Another means of the above-mentioned auxiliary power source is to connect the electric power generated by rotating an electric rotating machine, such as an alternating current generator or a direct current generator, to an electric circuit by directly using the falling motion of the rotating parts of the machine. It is also known to perform stop control of the stand.

In the above-mentioned conventional apparatus in which the simultaneous splicing is controlled by an adjustable switch controlled by a rotary arm driven by the machine's main motor, the timing of the machine's drive system can be adjusted with a certain degree of precision. but,
The adjustment range provided by the panel is limited by the dimensions of the panel on which the switches are installed and the arrangement of the switches, making it difficult to optimally adjust all simultaneous yarn splicing operations for machines with different production speeds or different production types. It also has the disadvantage that it is prone to irregularities in guiding the impulses for the separate control mechanisms, and is also a factor that disturbs the continuity of the thread joining.

The present invention is a device that can easily and accurately adjust the time sequence necessary for stopping or restarting the spinning operation in an open-end spinning machine to a time interval adapted to the individual machine, i.e., the start of operation of an open-end spinning machine. and providing a device for ensuring a time sequence for starting or stopping the individual drive systems of the machine (of the fiber feeding part, the spinning chamber, the yarn withdrawal part, the winding part, etc.) at adjustable time intervals during stoppage, The object is to substantially eliminate the drawbacks of known devices.

3 A plurality of spinning units 1 are arranged in parallel on one or both sides of a machine (a single spinning unit is shown in FIG. 1 for ease of understanding). The open-end spinning machine is equipped with a driven shaft 2, 3.4 in the form of a solid shaft or a hollow shaft common to each spinning unit, the shaft 2 feeding the fibers 5 to the spinning unit 1; The shaft 3 carries out the withdrawal of the thread 6 from the spinning unit 1, and the shaft 4 winds the thread 6 onto a bobbin 6'.

These driven shafts 2, 3.4 extend the entire length of the machine and are driven in rotation by an electric motor 9 mounted at the bottom of the machine.

For example, as shown in FIG. 1, power is transmitted from an electric motor 9 to a gear wheel 8 via a drive belt 8'.
A gear wheel 7 is engaged with this gear wheel 8, and this gear wheel 7 rotates the shaft 4.

The gear wheel 7 now engages a gear wheel 10 which transmits the rotary movement to the time sequence device 11 of the invention which is mounted on the side wall 12 of the machine.

The time sequence device 11 of the present invention is formed into a substantially circular shape as shown in FIG.

As shown in FIG. 2, an electromagnetic clutch having clutch wheels 141 and 142 is mounted at the center of the circular body 13, and teeth 15L152 such as crown gears are provided on opposing surfaces of the electromagnetic clutch for mutual engagement. It is being

This electromagnetic clutch is rotatably mounted on a shaft 16 that passes through a hollow electromagnet 1γ fixed at the center of a circular body 13.
One end is attached to a rear lid 18 connected to the circular body 13.

Said electromagnetism? One clutch wheel 1 forming the clutch
41 is also an armature that moves in the axial direction and is pulled by the electromagnet when the electromagnet 17 is energized.

That is, the clutch wheel 141 is rotatable on the shaft 16 and displaceable in the axial direction.

A pressure spring 19 is connected to the shaft 1 in order to press the clutch wheel 141 in a direction opposite to the attraction action of the electromagnet 21.
It is located around 6.

Thus, when the electromagnet 21 is deenergized, this clutch wheel 141 is brought into contact with the other clutch wheel 142.

When the electromagnet 1γ is energized, one clutch wheel 14
1 is the other clutch wheel 14 against the pressure spring 19.
2, and this electromagnetic clutch is disengaged.

The electromagnet 1γ is controlled by a control mechanism (not shown), and the electromagnetic clutch is kept in the disengaged state (that is, the electromagnet 17 is energized) during normal operation of the spinning machine.

The clutch wheel 14L142 has teeth 15 like a crown gear.
1.In addition to 152, there are radial teeth 2 like spur gears on the outer periphery.
01.202 is provided.

The spur gear 202 of the other clutch wheel 142 of the electromagnetic clutch engages a transmission wheel 21 on an axle 22 rotatably mounted on the rear lid 18 .

Shaft 22 is driven by gear wheel 10.

The spur gear 201 of one clutch wheel 141 of the electromagnetic clutch engages a transmission wheel 23 mounted on a shaft 24 mounted rotatably and axially movably in a sleeve 25 mounted on the circular body 13 .

As shown in FIG. 2, the transmission wheels 23 are provided on the inner surface of the circular body 13, and in this embodiment, the number of transmission wheels 23 is four.

At the outer end of the shaft 24 of each transmission wheel 23, there is a knob 2.
A control panel 26 having 8 control panels is installed, each control panel 26 having a
As shown in FIG. 3, a cam is provided for actuating control switches 2.gamma.1, 2.gamma.2, 2.gamma.3.degree. 274 for controlling the time sequence that must occur when starting and stopping the machine.

Thus, by pressing the knob 28, this cam can be moved along the axis 24 together with the control panel 26, and can also be rotated angularly in different positions, as will be described below.

Each control switch 27L27 operated by the above cam
2,273274 is attached to the outer circumferential annular portion 51 of the circular body 13.

When the four control panels 26 are rotated simultaneously by the shaft 22 via the electromagnetic clutch (that is, when the electromagnet 17 is deenergized) when starting or stopping the machine, the cams of the individual control panels 26 are rotated simultaneously. control switch 271.272,
273 and 274 in a preset order, thus obtaining a time sequence for starting or stopping each of said drive systems of the machine.

A scale 29 corresponding to each control panel 26 is attached to the outer surface of the circular body 13.

In order to view the graduations of the scale 29 through the control panel 26, a portion of the surface of each control panel 26 is punched out to form an inspection hole 30.

The transmission wheel 23 of each control panel 26 is secured by a spring 32 in a position where it engages with a clutch wheel 141 .

This spring 32 is mounted around the shaft 24 as shown in FIG. It is installed opposite to a washer rotatably provided in the.

Therefore, when the knob 28 is pressed, the shaft 24 moves against the force of the spring 32.
is displaced and the transmission wheel 23 becomes the clutch wheel 141
It will come off, and it will engage when you release the knob.

That is, the spring 32 secures the transmission wheel 23 in a position where it engages the clutch wheel 141, and at the same time, the spring 32 forces the control panel 26 into one of the most extreme axial positions.

The front side of the time sequence device 11 of the present invention, which is equipped with a plurality of control panels 26, is covered by a transparent housing 33, and a knob 28 for adjusting the control panels 26 protrudes from the transparent housing 33.

The time sequence device of the present invention operates as follows.

During normal operation (during spinning) of an open-end spinning machine,
One clutch wheel 141 of the electromagnetic clutch is engaged with each transmission wheel 23, but the clutch wheel 14
The crown gear 151 of one clutch wheel 1420 is not engaged with the crown gear 152 of the other clutch wheel 142, and thus each part transmitted from one clutch wheel 141 remains stationary.

The other clutch wheel 142 continues to rotate during operation of the machine by means of the gear wheel 21 from the shaft 22, which is transmitted from the winding roller shaft 4 via the gear wheels 7 and 10.

First, we will describe the starting operation of the spinning machine using the time sequence device of the present invention. When the starting switch (not shown) of the spinning machine is turned on, the spinning chambers of each spinning unit 1 are driven all at once, and then the electric circuit of the electromagnet 11 is cut off. The crown gear 15 of the clutch wheels 141, 142 of the electromagnetic clutch
L152 are engaged with each other and the control panels 26 are moved in unison, and the contacts of each control switch 271, 272, 273, 274 are kept closed and opened in a preset time sequence, thereby opening the drawer part. The roller shaft 3 and the winding roller shaft 4, which is the winding part, move in reverse for a predetermined period of time, and the shaft 2, which is the fiber supply part, rotates to start supplying the fiber material, and then the yarn 6 is pulled out from the spinning unit 1. The rotation directions of the pull-out roller shaft 3 and the take-up roller shaft 4 are controlled to be changed in the direction of winding onto the bobbin 6'.

That is, by reversing the pull-out roller shaft 3 and the take-up roller shaft 4, the end of the yarn 6, which remains under the negative pressure of the spinning chamber, is returned to the spinning chamber, and is supplied by the rotation of the shaft 2 to the spinning chamber. is brought into contact with fibers attached in a ribbon-like manner to the collecting surface of the fiber.

Then, at the time when the yarn end and the fiber ribbon come into contact with each other in the spinning chamber, the rotation direction of the yarn pull-out roller shaft 3 and take-up reroller shaft 4 is switched, the fiber ribbon is joined to the yarn end and pulled up, and yarn splicing is achieved. The spinning process returns to normal spinning state.

At this point, the electromagnet 17 is energized and the electromagnetic clutch is disengaged.

Next, when the machine is stopped by a worker or for some other unforeseen reason (for example, the power supply is interrupted), the electromagnet 17 receives an impulse from the contacts of an auxiliary relay (not shown). contact with the electrical circuit is cut off.

The electromagnet thus loses its magnetic effect, the pressure spring 19 engages one clutch wheel 141 of the electromagnetic clutch with the other clutch wheel 142, and the rotational movement is caused by the control panel 2.
6 to the transmission wheel 23, the cam of the control panel 26 runs along a circular path, and at predetermined time intervals and time sequences controls switches 271, 272, 273, 2.
Close the contacts of γ4 one after another.

As a result, the shaft 20 rotations are first stopped, the supply of fibers into the spinning chamber is stopped, and the final fiber ribbon in the spinning chamber is pulled out as a yarn end, and this final yarn end remains under the negative pressure of the spinning chamber. The machine is stopped in the following order: the pull-out roller shaft 3 and the take-up roller shaft 4 are stopped during this period, and then the rotation of the spinning chamber is stopped.

As mentioned above, the time sequence device for controlling the start and stop of the open-end spinning machine in the present invention starts and stops the drive system of each part of the machine at predetermined time intervals when starting and stopping the operation of the open-end spinning machine. This is a device that ensures a time sequence, and is configured to perform simultaneous yarn splicing by reversing both the yarn pull-out part and the winding part using an electric control mechanism equipped with control switches for each drive system. Control switch 27L272゜273.274 that controls the start and stop of the system
A control panel 26 equipped with an axially displaceable cam for operating these control switches is disposed in each of the control switches, and each control panel 26 is displaceable in the axial direction, but one of the electromagnetic clutches It is attached to the shaft 24 of the transmission wheel 23 engaged with the wheel 141, and the other clutch wheel 142 of the electromagnetic clutch is driven by the pull-out roller shaft 3 or the winding roller shaft 4, so that both clutch wheels 1
Each control panel 26 is rotated when the 4L 142 is engaged, and a spring 32 is interposed between each transmission wheel 23 and each control panel 26 so that the spring 32 connects the transmission wheel 23 to the clutch. Spur gear 20 of wheel 141
1, and each control panel 26 is positioned to operate the switches 27L272, 273, 274, and each control panel 26 is pushed against the spring 32, thereby causing the engagement. By releasing and rotating, it is possible to adjust the time interval between starting and stopping the drive system when starting and stopping the machine, so it is possible to adjust the type of fiber to be processed, the required yarn count, or the correct course of the spinning process. If the need arises to readjust the time intervals or time sequences required to carry out certain operations at the beginning or end of operation of an open-end spinning machine, for safety reasons or for other reasons, By pressing the knob 28 during or before starting the operation, the control panel can be rotated in a desired direction.

With this process, the control switches 271, 272, 273
.

By then releasing the pressure on the knob 28, the control panel 26 is restored to its operating position, thereby completing the adjustment of the time sequence.

The advantage of the device of the invention is that it eliminates conventional electrical devices (for example relays) and mechanical devices (for example rotary arms) that can cause failures during batch splicing.

Furthermore, the advantage of the device according to the invention is that it allows precise and easy adjustment, i.e. the programming of the entire operation, in particular the sequence at precise time intervals, thus eliminating time losses and providing a precise and rapid piecing and is also suitable for obtaining high quality of the final product, i.e. yarn, and also for increasing its productivity.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. Fig. 1 is a partially omitted perspective view of the configuration of common parts of an open-end spinning machine together with the time sequence device of the present invention, and Fig. 2 shows details of the time sequence device. A cross-sectional side view, FIG. 3 is a detailed front view of the time sequence device. In the figure, reference numeral 23 is a transmission wheel, 24 is a shaft that supports the transmission wheel 23, 26 is a control panel 26 attached to the other end of the shaft 24, and 32 is a spring that biases the shaft 24 in one direction in the axial direction. 141, 142 are the clutch wheels of the electromagnetic clutch, 271° 272, 273, 274 are the control panel 2
6 cam actuated control switch.

Claims (1)

[Claims for Utility Model Registration] This is a device that ensures a time sequence for starting and stopping the drive systems of each part of the machine at predetermined time intervals when starting and stopping the operation of a textile machine, especially an open-end spinning machine. Control switches 271 and 272 for controlling the start and stop of each of the drive systems, in an electric control mechanism equipped with a control switch that reverses both the yarn pulling part and the winding part to perform simultaneous yarn splicing. ,273
A control panel 26 equipped with an axially displaceable cam for operating these switches is disposed at each of the switches 274, and each control panel 26 is connected to one clutch wheel 141 of the electromagnetic clutch. It is fitted onto the shaft 24 of the transmission wheel 23, and the other clutch wheel 142 of the electromagnetic clutch is driven by the pull-out roller shaft 3 or the take-up roller shaft 4, so that each control panel 26 rotates when both clutch wheels 141, 14 are engaged. Further, a spring 32 is interposed between each transmission wheel 23 and each control panel 26, and this spring 32 causes each control panel 26 to be moved between each of the switches 2 and 2.
71, 272° 273, 274, and by pushing each control panel 26 around against the spring 32, the time interval between starting and stopping of the drive system when starting and stopping the machine can be adjusted. A device for ensuring a time sequence for starting and stopping the drive system of each part of the machine at adjustable time intervals at the start and stop of operation of a textile machine, especially an open-end spinning machine, characterized in that it is adjustable.