JPS5827031Y2 - Kiss safety device on card - Google Patents

Description

[Detailed description of the invention] In a card in which the web on the dosing surface is scraped off by a scraping reroller, the starting end of the web may not be sufficiently gripped by the scraping reroller, or even if it is gripped, it will not be able to be gripped by subsequent rollers. There is a concern that the delivery cannot be guaranteed.

Therefore, in order to guide the web starting edge, there is a web guide that is positioned close to the bottom of the rollers after the scraping reroller so that the web starting edge is received and gripped and guided by each roller.

In other words, when the cotton is passed through the card for the first time, when the web is wound around each roller, when the web is cut, etc., the basis weight of the web is determined by the work (the web guidance to the rollers after the scraping reroller, and the web handling by the operator in the web spinning section). A web guide is used as a means for guiding the web starting edge when it is necessary to perform tasks such as focusing and introducing the web starting edge into the calender roller.

The work for determining the web weight is performed with the activation of a card, and furthermore, the guidance of the web starting edge also involves the work of the operator converging the web in the web spinning section and introducing the web starting edge into the calender roller. , The card needs to be operated at low speed for the purpose of providing the above-mentioned web guidance and ensuring the work of the operator.

In view of the above, the present invention is designed to start the doffer when the web guide has not risen to a predetermined operating position when starting the doffer at low speed, thereby eliminating the problems caused by forgetting to raise the web guide, which tends to occur in the past. is intended to prevent mistakes.

The docker is designed to stop when there is an abnormal signal such as the web wrapping around each roller or the web breaking.
All the web at the junction with the cylinder that continues to rotate is carried away by the cylinder and a web break occurs.

Therefore, when the dotter is started at a low speed for the subsequent cutting operation, the starting end of the web will reach the action portion of the scraping roller that joins the dotter in a very short time.

For this reason, the web guide must have risen to the operating position at least immediately after the start of the doffer's low-speed start-up. However, according to the present invention, since confirmation of the rise of the web guide is related to the start of the doffer, the scraping Since guidance by the web guide is guaranteed whenever the web passes past the rollers, the gagging operation can be performed reliably.

The present invention will be explained with reference to the embodiment shown in the drawings.The cotton wrap fed in by the rotation of the feed roller 1 is 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 reroller 6 is employed, and the web transferred to the scraping reroller 6 is stripped off by a delivery roller 7 adjacent to the delivery roller 7, and a pair of crush rollers 8 adjacent to the delivery roller 7.
, 8, and then focused by trumpet 9, and 1
It passes through a pair of calender rollers 10°10.

Now, when the web is connected between the scraping roller 6 and the calender roller 10, the web is gripped by each roller in between and performs its respective action.
When threading cotton through a card for the first time, or when performing web finishing work when the docker is stopped due to an abnormal signal, the starting end of the web scraped off from the docker 5 by the scraping reroller 6 is not necessarily held by the roller 6. The scraping roller 6 often falls off.

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

Therefore, the web guide 11, which extends from the narrow space below the scraping crawler 6 where it joins the docker 5 to the vicinity of the gripping portion of the crush rollers 8, 8, is moved between the ascending operating position where it approaches the lower circumferential surface of each roller 6, 7, and away from it. A web guide elevating mechanism is provided to raise and lower the web guide to a lowered inoperative position, and when the mouthpiece requires work, the web guide is guided to a raised and activated position.

In the case of the illustrated example, the web guide 11 is of a rotating type, and the web guide 11 is in a hanging inoperative position about a rotating shaft 12 provided in a narrow space where the docker 5 and the scraping reroller 6 are joined. , and a horizontal operating position where the tips extend close to the gripping portions of the crush rollers 8,8.

And the web guide lifting mechanism is a reversible motor 1 with a reduction gear.
3. Consists of a chain wheel 14 on the motor shaft, a chain wheel 15 on the rotating shaft 12, and a chain wheel 16 suspended between both chain wheels 14 and 15.

For example, when the web wraps around the dowel 5 and the abnormality detection device a issues an abnormal signal, the relay CR1 is energized, so the normally closed contact CR1 opens due to the abnormal signal, and therefore the relay CR1 is de-energized. dotsufa clutch MC
is cut out, and Dotsufa 5 is brought to a halt.

At the same time, the lamp L1 is lit to notify of an abnormality, and the lamp L2 is also lit to notify that the web guide 11 is in the lowering inoperable state.

The operator who comes to the machine after noticing the notification lamp L1 first repairs the abnormal part, and also recognizes the lighting of the lamp L2 and operates the web guide raising pushbutton PB5.

This energizes relay CR1o, causes motor 13 to rotate forward, guides web guide 11 upward, and when it rises to a predetermined horizontal operating position, cam 17 on shaft 12 presses upward position confirmation switch LS2□. The motor 13 stops normal rotation.

When switch LS21 is pressed, relay CR2□ is energized and lamp L2 is turned off, so when the operator next presses low-speed start button PB2, the start circuit is closed.
Dotsufa 5 begins rotating at low speed.

Therefore, the web is fed out from the docker 5 and scraped off by the scraping roller 6, but the starting end of the web is held at the web guide 11.
Since it is guided by the transfer roller 7, it smoothly reaches the crush roller 8, and is further unrolled from there.

There, the operator collects the web and threads it through the trumpet 9, and thereafter threads the sliver to the coiler.

As described above, according to the device of the present invention, a switch LS is provided in the doffer starting circuit as a means for confirming the rise of the web guide.
21 is incorporated, unless the contact CR2□ is closed based on the operation of the switch LS21, even if the low-speed start button PB2 is operated, the rotation of the docker 5 will not start, and no mistakes will occur in the opening operation. do not have.

Since the date to be performed in the low-speed operation state is transferred to the high-speed operation state after the work is completed, in the illustrated example, the lowering command of the web guide 11 is set to the high-speed command,
Press the high speed button PB3 to activate the transmission pilot motor P.
M rotates to put the card into a high-speed operating state, and at the same time, the reversible motor 13 begins to reverse, so that the web guide 11 performs a downward movement from the parallel state to the drooping inoperative state.

When the predetermined position is reached, the cam 18 on the shaft 12 pushes the lowering position confirmation switch LS22, leading the motor 13 to stop.

If the web guide 11 is kept in the horizontal operating position at all times, it will remove fluff and fruit scum contained in the web.

Leaves, short fibers, etc. accumulate on the web guide, and if this amount exceeds a certain amount, they will be brought into adjacent rollers or the running web as a lump, which will impair the quality of the spun sliver, which is inconvenient. be.

Since the low-speed start-up circuit only needs to be closed when the means for confirming the rise of the web guide is activated, the web guide 11 is connected to the single motor 1 as shown in the figure.
It is not necessary to use the web guide 11 to raise and lower the web guide 11, and it is also possible to raise and lower the web guide 11 manually.

Further, the lamp L2 is not indispensable, and when the dosing fan 5 does not start even if the operator presses the low-speed start button PB2, the operator is made aware that the web guide 11 is not in the upward operating position, and the It may also be possible to prompt the user to perform a rising operation.

According to the device of the present invention, since the low-speed start-up of the puller, which involves work, and the confirmation of the rise of the web guide are connected, problems caused by forgetting to raise the web guide are eliminated, which in turn leads to improved productivity.

[Brief explanation of drawings]

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 control circuit diagram of the web guide lifting mechanism. 5... Dosing, 6... Scraping roller, 7... Delivery roller, 8... Crash roller, 11... Web guide, LS2,
... Web guide upward position confirmation limit switch.

Claims (1)

[Scope of utility model registration request] In order to guide the starting edge of the web scraped from the docker by the scraping reroller to the lower circumferential surface of the roller after the roller, the guard is provided with a web guide that can be raised to a position below the roller after the scraping roller. The date is a safety device that features a built-in contact that is closed by a limit switch for confirming the rise of the web guide.