JPH0243884Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a stop device for a transport band disposed at the front lower part of a spinning frame directly connected to a winder.

Conventional technology In a spinning machine directly connected to a winder, the doffed full yarn is held in a peg on a transport band at the front lower part of the machine, and by the intermittent movement of the band, the yarn is transferred one by one to the winder for the next process. In the case of a type in which the empty bobbin is returned from the winder at the same time as the winder, and the empty bobbin is received in the transport band, when moving the transport band intermittently, it is necessary to correctly set the spindle pitch interval in advance. It is necessary to stop it at a certain position.

Conventionally, as a device to move and stop this transport band intermittently, a magnetic material was built into the peg implanted on the transport band, and a detector to detect this magnetic material was placed on one side of the transport band. Arranged at appropriate intervals,
When this detector detects the approach of the magnetic material built into the peg, it sends a stop command signal to the transport band, causing the transport band to stop intermittently.

Problems with the Prior Art However, in this case, since the transport band runs in the longitudinal direction of the spinning machine, it is unavoidable that the transport band meander from side to side. Due to changes in the distance between the magnetic material built into the pegs planted in the band and the detection device, there are subtle variations in the timing at which the stop command signal is sent from the detection device to the transport band. The transport band stop position becomes slightly out of order. If the stop position of this transport band is out of alignment, the pegs of the transport band will no longer correspond to the tube gripping tools installed at the spindle pitch intervals of the all-spindle tube exchange device of the spinning machine.
As a result, positional deviations occur, resulting in problems such as errors in supplying empty bobbins to the transport band.

Means to solve the problem: The spinning frame is placed in a direction perpendicular to the traveling direction of the transport band, which is disposed at the front lower part in the longitudinal direction of the spinning frame frame so as to be able to circulate, and at a symmetrical position with the pegs planted in the transport band as the center. A pair of detection bodies are provided for detecting the approach of the magnetic material built into the peg and for transmitting a stop command signal to the drive motor of the transport band. The detection bodies are connected in parallel to an OR circuit, and the transport band is stopped by a signal from either one of the detection bodies.

Function Even if the transport band meanderes and the distance between the magnetic material built into the peg and the sensing object changes, a pair of magnetic material detection tools are placed at symmetrical positions around the peg. Therefore, when the distance between one of the sensing bodies and the magnetic body increases, the distance between the other sensing body and the magnetic body decreases by the increased distance.
Therefore, one of the sensing bodies reliably sends a stop signal to the drive motor of the transport band, so that the transport band stops at an accurately predetermined position.

Embodiment Next, an example of a device for carrying out the present invention will be explained in detail with reference to the drawings. In FIG. Winder 3 is the spinning machine 1
A transport band is disposed at the front lower part in the longitudinal direction so as to be able to circulate, and pegs 4 for holding the tube yarn at intervals corresponding to the spindle pitch are fixed to the transport band by bolts 5.

In FIGS. 2 and 3, the peg 4 has a cylindrical magnetic body 12 built therein. 6,6′
A guide rail is in charge of guiding the transport band 3, and the guide rail is fixed to a machine frame (not shown) via a spacer 7. 8 and 8' are bolts 9 and 8, respectively, attached to the guide rails 6 and 6'.
9', and a magnetic sensor 1 is mounted symmetrically about the peg 4 at the bottom of the bracket.
0, 10' are fixed by tightening nuts 11, 11'.

In FIG. 4, the magnetic sensors 10, 10'
is an OR that sends a stop command signal to the drive motor (not shown) of the transport band 3 in parallel.
connected to the circuit. Next, to explain the operation of the device of the present invention, as shown in Fig. 1, when a full yarn is formed on the spindle in the spinning machine, the full yarn is pulled out from the spindle by the all-spindle doffing device and transported to the transport band 3. Attached to Pezug 4 above. Here, the transport band 3 is rotated intermittently at every spindle pitch interval, and the full pipe threads are supplied one by one to the automatic winder 2 side, while the empty wood pipes are returned from the automatic winder 2 side and are returned to the bobbin. The empty wood pipe is stored in a box and attached to the peg 4 of the transport band 3 from the lower part of the bobbin box via the shoot guide 13.

Now, when the transport band 3 rotates intermittently, if it meanders in the longitudinal direction of the machine, the magnetic body 12 built in the peg and the magnetic detection sensor 1
The distance between x and 0 is shifted by Δx. However, with respect to this magnetic detection sensor 10, the magnetic sensor 10', which is arranged symmetrically around the PEZG, is
The distance x from the magnetic body 12' decreases by Δx. Therefore, the magnetic sensor 10' detects the approach of the peg 4,
A stop command signal is sent to the drive motor of the transport band 3, and the transport band 3 is stopped.

Effects As described above, the present invention arranges a pair of detection bodies for detecting the approach of the PEZG at symmetrical positions with respect to the PEZG implanted on the transport band, and also connects an OR circuit in parallel with the detection bodies. Compared to conventional systems in which only one sensing element is placed on one side, even if the transport band meanderes or the peg is tilted for some reason, one sensing element will always be connected to the This has the effect of always detecting the approach of the peg and accurately stopping the transport band at a predetermined position.

[Brief explanation of the drawing]

Figure 1 is a schematic front view of the main parts of a spinning machine that is directly connected to an automatic winder equipped with the device of the present invention, and Figure 2 is a front view of the main parts of the spinning machine.
FIG. 3 is a sectional view taken along line AA in the figure, FIG. 3 is a sectional view taken along line BB in FIG. 2, and FIG. 1...Spinning machine, 2...Winder, 3...Transport band, 4...Petsug, 10,10'...
...Magnetic sensor, 12...Magnetic material.

Claims (1)

[Scope of utility model registration request] A transport band, which is disposed in a recirculating manner at the bottom of the longitudinal spindle row of the spinning machine frame, is rotated intermittently to send out the pipe yarn held in the pegs planted in the transport band to the winder for the next process. In a stop device for a transport band of a spinning machine directly connected to a winder that simultaneously accepts empty bobbins returned from a winder, a stopper is provided in a direction perpendicular to the traveling direction of the transport band and centered on the peg of the transport band. At least a pair of detection bodies are provided at symmetrical positions for detecting the approach of the magnetic material built into the peg and transmitting a stop command signal to the drive motor of the transport band, and the detection bodies are connected in parallel to an OR circuit. A transport band stopping device for a winder-directly connected spinning machine, characterized in that the transport band is stopped by a signal from either one of the sensing bodies.