JPS5827032Y2 - Operation control device in card - Google Patents

Description

[Detailed description of the invention] In a card, the web on the surface of the dot is scraped off by a scraping reroller, and the starting end of the web is guided to the lower peripheral surface of the roller and the subsequent rollers at a lower position of the roller after the scraping roller. There is something that positions the web guide.

In other words, when the cotton is first passed through the card, when the supplied cotton is cut, when the web is wrapped around each roller, when the web breaks, etc. When the leading edge of the web is scraped by the scraping roller, it may not be sufficiently gripped by the scraping roller, or the leading edge of the web may not be sufficiently gripped by the scraping roller. Even if the web is removed, there is a concern that it cannot be transferred reliably to the subsequent rollers, so a web guide is positioned close to the bottom of the rollers after the scraping roller, and the starting end of the web is caught and guided by each roller. be.

Since it is necessary to ensure the above-mentioned operation, the card is in a low-speed spinning operation state.

As mentioned above, the web guide, while sometimes beneficial, suffers from the disadvantages of keeping the rollers close together during normal operating conditions.

This is because fly fluff, fruit scraps, leaf scraps, short fibers, etc. contained in the web are deposited on the guide, and when this fluff exceeds a certain amount, it is taken into the running web as a lump, causing the spinning. This impairs the quality of the output sliver.

On the other hand, when the spinning operation is completed in a low-speed spinning operation, it is necessary to bring it to a high-speed spinning operation and return to normal operation in order to improve productivity.
The amount of fluff generated due to air resistance increases, and the amount of fluff accumulated on the web guide per unit time also increases, increasing the risk of being carried into the running web.
It is also more than in the low speed spinning state.

In addition, during high-speed spinning operation, if the web guide approaches below the rollers after the scraping reroller, there is a concern that the accompanying airflow caused by the rotation of the rollers will be disturbed by the web guide, which will disturb the passing web.

In this way, the web guide must be lowered during high-speed spinning operation, but conventionally, the lowering operation of the web guide was performed by a command for that purpose only, and was not linked to any other mechanism or operation. Therefore, I often forgot to lower the web guide.

The present invention is an attempt to solve this problem in view of the above-mentioned inconvenience. The command is executed on the condition that the person is evacuated to

To explain the embodiment adopted in the single card shown in the drawings, the raw material fibers drawn in by the rotation of the feed roller 1 are spread by the take-in roller 2 and removed by the cylinder 3. It is transferred as a web onto the surface of the dot 5 by carding between the flats 4.

Regarding peeling off the web on the surface of the dot 5,
A scraping roller 6 is employed, and the web transferred to the scraping reroller 6 is stripped off by a delivery roller 7 adjacent to it, and a pair of crush rollers 8 adjacent to the delivery roller rough.
, 8, and then focused by trumpet 9, and 1
It passes through a pair of calender rollers 10.10.

Now, in the web spinning section, that is, between the scraping roller 6 and the calender roller 10, the web is
When the fibers are connected between 0 and 0, they are gripped by the rollers between them and perform their respective functions. When work is required, use the scraping reroller 6.
The starting edge of the web scraped off from the dot 5 is not necessarily grasped by the scraping reroller 6, and often falls off from the scraping roller 6.

Similarly, the starting end of the web tends to fall off from the transfer roller 7, and when it falls off, it becomes impossible to guide it to the gripping portion of the next crush rollers 8, 8.

Web Guide 11 may require work on the above dates.
It extends from the narrow space below the scraping reroller 6 where it joins the docker 5 to the vicinity of the gripping portions of the crush rollers 8 and 8, and receives the starting end of the web that has fallen off from the scraping roller 6 and the transfer roller 7. It has the role of making it bite.

When the spouting operation is completed, the web guide 11 must be separated from the scraping reroller 6 and the like to be inactive in order to avoid problems caused by the accumulation of fluff.

In the present invention, the transition to the inoperative position of the web guide 11 is a condition for transition to the high-speed spinning operation state. The web guide 11 moves between a lowered inoperative position and a raised activated position in which the tip extends close to the crush rollers 8, 8 gripping part about the rotating shaft 12 provided in the narrow space where it joins the scraping reroller 6. It is possible to go up and down.

The web guide elevating mechanism is of a manually operated type, and as shown in FIGS. A pin 14 is provided protrudingly at an intermediate position.

There is also a lowering operation lever 16 that can be rotated around a shaft 15 supported by the machine frame.
When the guide 11 is in the lowering non-operating position, the pin 14 of the raising operation lever 13 is stopped, and when the guide 11 is in the raising operating position, the locking recess provided at the intermediate position of the lever 16 17 so that the pin 14 is engaged with the pin 17 to maintain the upward rotational position.

18 is a handle for disengaging the pin 14 from the locking recess 17.

The device of the present invention is characterized in that the work is carried out in a low-speed spinning operation state, and that once the work is completed, it is necessary to shift to a high-speed spinning operation state, and that in this high-speed state, the web guide 11 Focusing on the fact that the web guide does not need to be in the upward operating position, and that being in that position is harmful, in addition to a contact that closes based on the high-speed transition command, the web guide is placed in the upward operating position. open if there is,
A contact is provided that closes when the lowering is in the inoperative position.

For example, when the web wraps around the doffer 5 and the abnormality detection device a issues an abnormal signal, the relay CR1□ is energized, so that the normally closed contact CR, of the doffer low-speed circuit opens due to the abnormal signal, and therefore the relay CR.

The excitation of the doffer 5 is released, the doffer clutch MC that restricts the stoppage of the doffer 5 is disengaged, and the doffer 5 is guided to a stop.

At the same time, the lamp L1 lights up to notify the abnormality.

When the docker 5 stops, cutting of the web occurs at the junction with the cylinder 3, which continues to rotate.

When the operator recognizes the alarm lamp L1 and comes to the machine, he first repairs the abnormality, so relays CR, . are de-energized, the alarm lamp L1 lights up, and the normally closed contact CR1 is turned on.
, closes again.

Next, by rotating the upward operation lever 13 of the web guide 11, the web guide 11 rises to the operating position, and at that position, it engages the locking recess 17 of the downward operation lever 16 that has been pushed up with the pin 14. Engagement of the pin 14 maintains the operative position of the web guide 11.

At this time, as is clear from FIG. 3, the cam 19 mounted on the shaft 12 pushes the limit switch LS, opens the contacts of the Doppa high-speed circuit, and closes the circuit of the lamp L2, turning on the lamp L2. .

At this point, the operator presses the low-speed start button PB2 to begin work on the Unipro.

As a result, relay CR is closed, and clutch MC is closed.
is excited and the doffer 5 starts rotating.

By starting to rotate at a low speed, the docker 5 receives the web from the cylinder 3 again and transports the web to the spinning section. However, even if the starting end of the web falls off at the scraping roller 6, the web guide 11 Since it is already in the raising operation position, it is received and guided by the guide 11, passes below the delivery roller 7, smoothly reaches the gripping portion of the crush rollers 8, 8, and is fed out from there.

There, the operator can collect the web and pass it through the trumpet 9, and thereafter pass the sliver to the coiler.

In this way, when the work with Unipro is completed, it is necessary to shift from the low-speed spinning operation state to the high-speed spinning operation state in order to improve productivity, but the high-speed button is simply used as a contact point for commanding the high-speed transition. Even if you press PB3, you cannot shift to the high speed state.

As mentioned above, the cam 19 is connected to the limit switch LS.
Press and hold the high speed circuit open.

It is from. The operator can know that the transition to the high speed state is not possible by lighting the lamp L2, and therefore, by slightly lifting the handle 18, the operator removes the pin 14 from the locking recess 17 and removes the web. Encourage the guide 11 to lower its own weight.

As a result, the web guide 11 is lowered to the inoperative position and the pressure on the limit switch LS by the cam 19 is released, so that the contacts of the doffer high speed circuit are closed and the circuit of the lamp L2 is opened and the light is extinguished.

When the lamp L2 turns off, the operator knows that there is no problem in transitioning to the high-speed spinning operation state, and presses the high-speed button PB3 to close the doffer high-speed circuit and lead to the high-speed spinning state.

As described above, according to the device of the present invention, for the high-speed spinning state where the web guide does not need to be in the operating position, the condition for transitioning to that state is associated with the lowering operation of the web guide, so that the web guide is activated. Therefore, there is no longer a situation where the quality of the spun sliver deteriorates due to forgetting to lower the web guide, which was a common problem in the past.

In the illustrated embodiment, the transition to the high-speed spinning operation state is based on pressing the high-speed button PB3, but when the timer activated by pressing the low-speed start button PB2 times up, the high-speed spinning operation state is automatically entered. Contacts may be provided in this high-speed spinning operating circuit that are open when the web guide is in the raised operative position and closed when the web guide is in the lowered inoperative position.

In this case, it is necessary that the timer setting time is sufficient for the web kiss to work.

It is also advantageous because there is no need to press the high-speed button all the time.

[Brief explanation of the drawing]

The figures show an embodiment of the device of the present invention, in which Figure 1 is a side view of the entire card, Figure 2 is a perspective view of the web guide lifting mechanism, and Figure 3 is a perspective view of the web guide lifting mechanism.
The figure is a side view of the same, and FIG. 4 is a circuit diagram of the operation control device. 5... Dosing, 6... Scraping roller, 7... Delivery roller, 8... Crash roller, 11... Web guide, 13...
...Ascend operation lever, 16...Descent operation lever, 19...Cam, LS...Limit switch.

Claims (1)

[Scope of utility model registration request] In order to guide the starting edge of the web scraped from the dot by the scraping roller to the lower circumferential surface of the roller after the roller, a web guide that can be raised to a position below the roller after the scraping re-roller is provided, and a low-speed spinning operation circuit and a high-speed spinning operation circuit are provided. In the card having a spinning operation circuit, in the high speed spinning operation circuit,
In addition to a contact that closes based on a high-speed transition command, an operation control device is provided with a contact that opens when the web guide is in the upward operating position and closes when the web guide is in the downward non-operating position.