DE2021498A1 - Device for feeding bobbins in an automatic thread winding machine - Google Patents

Description

Drpi.-lng. Rsinhold Kramer PATENT ADVOCATE

8OOO Munich 12
Marla-Bimbaurn-Strasse

Telephone ββOB53. 7071

Murata Machinery Limited, 103, Kisshoin Ochiaimachi, Minami-ku, Kyoto-shi, Kyoto / Japan

Device for feeding coils "at a automatic thread winding machine

(claimed priority;
May 2, 1969 Japan 34-263 / 69)

The invention relates to a device for feeding of bobbins, in particular by the so-called interrupted / spinning process produced bobbins in an automatic thread winding machine.

As is known, weft coils are independent of the type of Spool or rocker unit or the bobbin feed unit from the latter to the former along in prescribed Conveyed way sloping inclined guideways. Weft bobbins produced in a conventional spinning process are produced are generally elongated j i.e. the longitudinal dimension is larger than the transverse

- 2 ■ - 1098 17/1124 BAD ORIGINAL

202H98

dimension. The traditional inclined guideways are adapted to these proportions.

After the well-known interrupted spinning process recently gained importance in the practical production of yarns has won, the weft bobbins formed by this spinning process are often used in the winding process conventional automatic winding machines brought. It is known that after the interrupted spinning process produced weft bobbins generally have the transverse dimension two to three times as large as the longitudinal dimension »Wenn Weft bobbins of this particular shape are used in an automatic winding machine of the conventional type during (transport of the weft bobbins from the feed unit to the bobbin units, due to their special shape, the weft coils tend to block during their movement along the inclined guideway, These troubles in the feeding of the weft bobbins significantly reduce the work efficiency of the automatic ones Winding machine on a row.

In addition, with conventional automatic winding machines the mandrels receiving the weft bobbins are attached to the respective winding units or spindles. That's why is necessarily a separate special mechanism for removing the empty shut-off coils from their respective ones Thorns required before the newly fed full öchußapulen can be included.

- 3 -10 9 8 17/1124

This invention is intended to be one for coils of particular Form, such as those interrupted at your acquaintance Spinning processes are produced, particularly suitable apparatus are created that allows bobbins from the feed unit or the reel magazine to the Transporting winding units or spindles evenly without any disruptions. This device should at the same time a separate special mechanism for removing the empty bobbins from the thorns concerned before adding new full bobbins. Ultimately, this should improve the performance of the Winding machine can be increased significantly.

The device according to the invention is due to the combination marked with the following features:

a) there is a fixed axis on a coil unit appropriate

b) it is a mandrel for attaching a coil during the SpulVorgangs provided around the fixed axis is pivotable

c) there are means available to keep the mandrel in a to hold a suitable position for the delivery of the thread from the bobbin

d) means are provided to move the mandrel into position to remove an empty bobbin and to bring it into a position for transferring a full bobbin, whereby durcli -This means the holding force of those mentioned under c)

109817/1124

BATH ORIGINAL

Means can be overcome

e) Means are provided to remove the full spool from a

, en
To bring the waiting position into the lane transfer position

f) there are means for transferring the full bobbin to the Mandrel provided

g) a mechanism is also provided for controlling and exercising the movement of said parts according to a specified program depending on the winding process of the automatic winding machine.

With this device a new full one. Coil by the rotation of a support arm on which the coil is mounted by means of a Coil carrier is attached, brought from a waiting position to a Übergäbestellung. Is separate from the carrier arm a mandrel attached to the side of the winding unit, which by means of a mandrel carrier is pivotable about a fixed axis. Actuating means for pivoting the mandrel carrier can be brought into engagement with the mandrel carrier. At the time When the bobbin is transferred, the actuating means engage in the mandrel carrier and pivot the mandrel from its upright position Position about 180 degrees. As a result, the void The spool falls from the mandrel under its own weight. Then the mandrel is pivoted into a horizontal position, with his The axis is aligned with that of the bobbin, which is now in the transfer position. The swivel movement of a ■ The new bobbin is transferred from the bobbin carrier

- 5 -109 817/1124

brought on the thorn. When the handover of the coil is finished is, the transfer device returns to its starting position. The bobbin returns to its waiting position and the mandrel to its upright position. The actuating means to swivel the mandrel carrier take their rest position.

Further features and advantages of the invention are apparent from The following description can be seen, reference being made to the drawing. Show it

Pig. 1 is a perspective view of a main part of FIG

device according to the invention Fig. 2 shows partially in section a front view of the in

Pig. I illustrated device Fig. 3, partially in section, a side view of the in Fig. 1 shown device.

In the figures 1 to 3 a typical embodiment of the device according to the invention is shown. A fixed horizontal axis 3 is at one end of one of a frame 1 of the winding unit extending downward Arms 2 attached. At the free end of the fixed A & hse 3, a mandrel carrier 6 is mounted pivotably about it and has an engagement surface 5 with grooves 4 on its free side owns. In addition, a protruding mandrel 7 for applying the coil is attached to the circumference of the mandrel carrier 6. -Jfcef-

- 6 1098 17/1124

On the fixed axis 3, two sleeves 8 and 9 are attached at a distance from one another. A spiral spring IO is located between the two sleeves 8 and 9 and surrounds the axis, 3 · One end of the spiral spring 10 is hooked to the sleeve 8, the other end to the mandrel support 6. The helical spring exerts a torque on the mandrel support 6 exerted, which is directed clockwise in the illustration according to FIG. 2. As a result of the rotational force, the mandrel carrier 6 L is pressed against a stop 11 which is provided on the tightly fitting sleeve 9. The spool sits on the mandrel 7 by means of a sleeve 12, in alignment with the fixed axis 3, a rotatable axis 13 is arranged at a distance therefrom, which has an engagement part 15 at one end, which has a projection which can be engaged in the grooves 4 of the engagement surface 5 14 has. The rotatable axle 13 can be moved towards the stationary axle 3 and away from it. Separately from the mandrel arrangement, a pivotable support arm 16 is provided. This has a bobbin carrier 17 at its free end - the carrier cam 16 is designed in such a way that it moves the new bobbin from the waiting position to the bobbin transfer position through its pivoting movement and that in the bobbin transfer position the axis of the bobbin carrier is approximately perpendicular to the fixed axis 3. The support arm 16 is provided with a pivot arm 18 for removing the bobbin from the bobbin carrier. The support _{arm 16 1,} the swivel arm 18 and the rotatable axis 13 are connected with Kittel % w & control and exercise their movement according to a predetermined program.

109817/1124

: V- '■' ■■■ -7 -. ■ ■■ -.- V:. ■■■■■; ■; ■ / "

The operating sequence of the device described now becomes explained.

It is assumed that the bobbin on the mandrel 7 becomes empty. Then the rotatable shaft 13 moves in the axial direction the fixed AGhse 3 "until the engagement steep 15 over the Elements 14 and 4 completely with the engagement surface 5 in Engagement is. The rotatable axle 13 then pivots the mandrel carrier 6 with the mandrel 7, overcoming the spring force opposite to the ear pointer according to the representation Mg. 2 around the horizontal axis 3- Has the mandrel the in Fig.l reached with the symbol 7a marked position, so the empty bobbin 12 falls due to its own weight The axis 13, which can rotate with the mandrel 7 · Me, is now rotated in the opposite direction by about 90 degrees until the mandrel 7 assumes the position designated by the symbol 7b in FIG. 2. Simultaneously with the pivoting movement of the Doras 7 and the associated parts, the support arm 16 leads a Swivel movement from the waiting position to the. Coil transfer position the end. In this position the coil carrier is aligned 17 with the mandrel 7, which etches the in Fig. 2 with 7b designated position.

When the axial alignment of parts 17 and 7 is finished is, the pivot arm 18 pushes the full bobbin from the bobbin carrier 17 on the mandrel 7. When the bobbin is transferred to the mandrel 7, so the carrier arm 16 returns to its waiting position

- 8 109817/1124

return. The rotatable shaft 13 rotates until the mandrel 7 has returned to his upright position.

By modifying the mechanism that performs the pivoting movement of the support arm, the local relationship between the waiting position and the bobbin transfer division can be selected according to the operational requirements is desirable.

6 claims
3! Figures

10 9 8 17/1124

Claims (6)

70/8714 Ans ρ r ü ehe Ϊ) Device for feeding bobbins, in particular bobbins produced by the so-called interrupted spinning process, in an automatic thread winding machine, characterized by the combination of the following features: a) a fixed axle (3) is attached to a winding unit, b) there is a mandrel (7) for attaching a coil (12) provided during the winding process, the fixed axis can be swiveled, c) there are means (10, 11) available to the mandrel (7) always to be held in a position suitable for the delivery of the load from the coil, d) means (13 »14, 4) are provided around the mandrel into a position (7a) for removing an empty one Coil (12) and in a position (7b) for transferring to bring a full bobbin, which means the holding force of the means mentioned under c) (10) can be overcome, e) there are means (16) for the full bobbin to move from a waiting position to the bobbin transfer division, - 2 - 1098 17/1 12.4 202H98 - ί? - f) there are means (18) for transferring the full bobbin provided on the mandrel (7), g) a mechanism is also provided for controlling and exercising the movement of said parts according to a specified program depending on the winding process of the automatic winding machine 2. Apparatus according to claim 1, characterized that the means according to feature d) a mandrel carrier (6) which carries the mandrel (7) and on the fixed axis (3) is mounted pivotably about this and comprise a rotatable axis (13) which aligned with the fixed axis (3) at a distance / which is arranged by this and with the mandrel carrier (6) in Intervention can be brought about. 3. Apparatus according to claim 1, characterized ze rejects that the means according to the feature e) one from the waiting position to the bobbin transfer division pivotable support arm (16) and a coil carrier arranged at the free end of the support arm (17) include. 4. Apparatus according to claim 3 »characterized in that the coil carrier (17) in the coil transfer division is aligned with the mandrel (7). 109817/1124 . ■■■■ ■ '. ■ '■■ · ■ - ■ # - ■■■ JU 5. Device according to claim I _4, characterized in that the mandrel (7) in the bobbin removal position (7a) is directed vertically downwards, so that an empty bobbin falls down from the mandrel due to its own weight. 6. Working method using a device according to one of the preceding claims, characterized in that the empty bobbin (12) due to its own weight from the mandrel (7)
is removed, the dome is placed in the bobbin after removal of the bobbin would result in a new one. full bobbin is brought from the waiting position to the bobbin transfer position and the full bobbin is pushed onto the mandrel. 109817/1124