JPH10109832A - Empty bobbin feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the cycle time of an empty bobbin feeder. SOLUTION: An auxiliary gate means 34 is fitted at the middle height position between the bobbin delivery device 12 of an empty bobbin feeder 1 and the receiving position P where an empty bobbin B is fitted on a peg 31 beneath a bobbin chute 4. When the peg 31 stops at the receiving position P, a lower bobbin B2 on the auxiliary gate means 34 is dropped to fit the empty bobbin B onto the peg 31. By preparing an upper bobbin B1 on the auxiliary gate means 34 by the bobbin delivery device 12 until the next empty peg has reached the receiving position P, a part of bobbin dropping time is set so as to be overlapped with the delivery time of the peg 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a spinning machine such as a spinning machine, which comprises a plurality of empty bobbin carriers (generally, pegs) which are conveyed at a predetermined pitch along the front surface of the spinning frame.
The present invention relates to an empty bobbin supply device that supplies empty bobbins one by one in advance for tube replacement.

[0002]

2. Description of the Related Art An empty bobbin supplying apparatus as described above raises an empty bobbin in a bobbin housing box to above a bobbin chute by a bobbin pushing-up (scooping) device such as a lattice conveyor and sends the bobbin at a position above the bobbin chute. The device (gate means) is used to drop one by one, and when falling through the bobbin passage of the bobbin chute or by the gate means, the posture is controlled so that the large diameter portion of the empty bobbin faces downward and stops below the chute. After mounting an empty bobbin on an empty peg to wait, the peg is moved by one pitch to make one cycle of bobbin supply.

[0003]

In the above-mentioned conventional empty bobbin supply device, if the bobbin storage space is large and the height is high, the bobbin is attached to the peg by free fall, so that the bobbin or the peg can be mounted on the peg. There was a problem that the bobbin and the like were easily damaged by a large impact. In addition, when the bobbin collides with the peg, the bobbin jumps up, and it takes time until the jump stops, and there is a variation in the timing of starting the conveyance, thereby increasing the cycle time of the bobbin supply. The cycle time of bobbin supply from the empty bobbin installation to the next empty bobbin installation is the sum of the long bobbin falling time from the bobbin delivery device to the peg and the movement time of the peg mounted on the peg and transported at a predetermined pitch. There has been a problem that the cycle time becomes longer due to the falling time. An object of the present application is to prevent bobbin from jumping up and to reduce impact force acting on a peg, a bobbin, and the like. Another object is to shorten the bobbin supply cycle time of the empty bobbin supply device.

[0004]

According to the present invention, there is provided a gate means for dropping the empty bobbins supplied by the bobbin pushing-up (scooping) device one by one above the bobbin chute of the empty bobbin supply device. An auxiliary gate means for opening and closing the bobbin passage is provided at an intermediate height position with respect to the receiving position where the lower bobbin carrier is intermittently stopped, so that the bobbin on the auxiliary gate means falls and is attached to the bobbin carrier. The fall distance has been shortened. Further, in the present invention, the next supply peg is prepared on the auxiliary gate means by the gate means until the carrier on which the bobbin from the auxiliary gate means has been moved by one pitch is completed. Thereby, the impact at the time of bobbin falling was softened, and a part of the bobbin falling time was overlapped with the moving time of the bobbin carrier, thereby shortening the cycle time of the empty bobbin supply device.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention comprises a gate means for dropping empty bobbins one by one above a bobbin chute, and supplies empty bobbins one by one to a bobbin carrier which is intermittently stopped at a receiving position below the bobbin chute. In the empty bobbin supply device for a spinning machine, the bobbin chute is provided with an auxiliary gate means capable of opening and closing a bobbin passage of the bobbin chute at an intermediate height position between the receiving position and the gate means, and the auxiliary gate means comprises the gate means The bobbin carrier at the receiving position can receive the empty bobbin that has fallen, and is provided at a height position that does not interfere with the operation of receiving and moving the empty bobbin. As a result, the falling distance of the empty bobbin is shortened, so that the impact on the empty bobbin and the bobbin carrier is reduced, so that the empty bobbin and the like can be prevented from being damaged. In addition, the jump of the empty bobbin is eliminated, and the variation in the operation control timing of the supply device due to the jump can be prevented.

The auxiliary gate means is arranged so that the empty bobbin carrier received at the receiving position receives the empty bobbin dropped by the opening of the bobbin path by the auxiliary gate means, and the next empty bobbin carrier is positioned at the receiving position. Associated with the gate means to prepare the next empty bobbin to be supplied to the auxiliary gate means with the bobbin passage closed. As a result, the bobbin is not dropped directly from the gate means at a high position on the bobbin carrier, but is received once by the auxiliary gate means provided at the intermediate height position, and then supplied to the bobbin carrier. Since the drop to the means is performed until the next empty bobbin carrier is located at the receiving position, the cycle time of the empty bobbin supply device is the intermittent movement time of the bobbin carrier and the auxiliary gate means after the auxiliary gate means is opened. The time required for the bobbin to drop from the bobbin to the bobbin carrier is shortened. By shortening the cycle time, it is possible to cope with higher spinning speeds and thicker yarns with a shorter time from doffing to the next doffing.

The gate means and the auxiliary gate means are mechanically connected to a common drive source via respective driving systems, so that when the empty bobbin drops from the gate means, the auxiliary gate means is closed. Since the empty bobbin does not fall from the gate means when the auxiliary gate means is opened, the bobbin supply operation is reliably performed, which is preferable.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the empty bobbin supply device of the present invention will be described with reference to FIGS. The empty bobbin supply device 1 includes a bobbin housing box 2, a lattice conveyor 3 serving as a bobbin lifting device provided in the bobbin housing box 2, and a bobbin chute 4.
It consists of. The bobbin housing box 2 has left and right side walls 5 provided on the base 21 at intervals slightly longer than the bobbin length.
6 and a rear plate 7. Below the bobbin housing box 2, a bottom plate 8 is provided so as to be inclined down toward the lattice conveyor 3. A lattice conveyor 3 is disposed vertically between the left and right side walls 5 and 6 in the bobbin housing box 2 and at a lower end side of the bottom plate 8. This lattice conveyor 3
For example, as disclosed in Japanese Patent Publication No. 45-26580, lower sprockets 9 and upper and lower sprockets 9 corresponding to the left and right lower sprockets 9 are rotatably supported on left and right side walls 5 and 6, respectively. The endless chain 11 is located between the left and right upper and lower sprockets 9 and 10, respectively.
A plurality of lattices (bobbin transporters) 13 capable of pushing up an empty bobbin B to the entrance of the bobbin chute 4 are attached at a predetermined pitch between the two rows of chains 11. A driven sprocket 14 is integrally provided coaxially with the lower sprocket 10, and the driving sprocket 1 is integrally attached to a conveyor driving motor 15.
6 is connected via a chain 17 so that the driving force from the conveyor driving motor 15 is transmitted.
The bobbin lifting device is not limited to the lattice conveyor, but may be a scooping device disclosed in, for example, Japanese Patent Application Laid-Open No. 5-78035.

Next, the bobbin chute 4 will be described.
The bobbin chute 4 includes a bobbin stock portion 18 and a bobbin passage 19 continuous with the bobbin stock portion 18. Bobbin stock part 1
8 is provided with a bobbin sending device 12 as a gate means. The lower end of a vertically moving link 22 is eccentrically connected to the rotating shaft of a motor (drive source) 20 disposed between the bobbin passage 19 and the lattice conveyor 3, and the upper end of the link 22 is a rotating member. A drive system 26 is formed by connecting the lower ends of two bobbin stopper plates 24 and 25 to the rotating member 23 in a rotatable manner. The upper ends of the bobbin stopper plates 24 and 25 can be alternately moved into and out of the bobbin stock unit 18 by the drive system 26. The bobbin sending device 12 is configured to use the empty bobbin (hereinafter, upper bobbin) B1 stocked in the stock unit 18. Drop into the bobbin passage 19 one by one. In the bobbin stock portion 18, a bobbin aligning device 42 in which the small diameter portion of the bobbin is on the upper side and the large diameter portion of the bobbin is on the lower side.
Is provided. The bobbin aligning device 42 extends the upper bobbin B into the bobbin stock section 18 through the bobbin passage 19.
The width adjusting plate 27 guides the large diameter portion of the upper bobbin B1 to be moved toward the small diameter portion, and the small diameter portion is provided in the bobbin chute 4. The bobbin passage 19 is always received by the receiving member 28 and falls from the large diameter portion (for example, Japanese Patent Laid-Open No. 5-78035).

A lower end of the bobbin passage 19 has a drop chute 29.
Are connected at the upper end. The lower end of the drop chute 29 is opened on the peg 31 of the peg conveyor 30 moving along the front surface of the spinning machine. A bobbin passage 32 is provided on the side of the drop chute 29 in the peg conveyor transfer direction, and an opening / closing plate 33 is attached to the bobbin passage 32 so as to be openable and closable, in a direction opposite to the transfer direction of the peg conveyor 30. Normally, the bobbin passage opening 32 is closed.

The bobbin chute 4 has an empty bobbin B at an intermediate height position between the bobbin sending-out device 12 and the receiving position P (the position where the peg 31 receives the empty bobbin B from the bobbin chute 4 immediately below the drop chute 29). Height position that does not interfere with the movement of the peg 31 receiving the
The auxiliary gate means 34 is provided above the empty bobbin B in the mounted state. The drive system 35 of the auxiliary gate means 34 is a motor 20 for driving the bobbin delivery device 12.
Driven by The drive system 35 includes a cam member 36, a swing member 37, and a front-back movement member 38. The cam member 36 is integrally attached to the rotation shaft of the motor 20. A swinging member 37 is pivotally supported at a substantially middle portion between the side walls 5 and 6 so as to be able to swing in the front-rear direction, and a biasing member (spring) 39 is provided on the upper end side.
Are connected to each other to form a cam follower provided at the upper end thereof.
Is pressed into contact with the peripheral surface. One end of a longitudinal movement member 38 is relatively rotatably connected to the lower end of the swinging member 37, and the longitudinal movement member 38 is capable of opening and closing the bobbin passage 19, and the other end is controlled by the bobbin delivery device 12. A bobbin receiving portion 40 is provided for receiving the dropped upper bobbin B1. 41 is a detecting means (photo switch) for confirming whether or not the lower bobbin B2 falling from the auxiliary gate means 34 is mounted on the peg 31. The detecting means 41 is provided on the lower front surface of the empty bobbin supply device 1 and below the drop chute 29. The empty bobbin B is provided at a position where the empty bobbin B can be confirmed when the empty bobbin B is mounted on the peg 31.

Reference numeral 50 denotes a motor 2 for driving the peg conveyor 30, the bobbin feeding device 12, and the auxiliary gate means 34.
0 at the timing of stopping the movement of the peg conveyor 30 by one pitch.
The opening of the auxiliary gate means 34 is controlled and the rotation of the motor is controlled so that the opening of the auxiliary gate means 34 is started, and a one-pitch movement start command of the peg conveyor 30 is output by a bobbin detection signal from the detection means 41. Then, drive systems 26 and 35 for the bobbin delivery device 12 and the auxiliary gate means 34 are provided.
The auxiliary gate means 34 starts opening the bobbin passage by the rotation of the motor 20, and at the same time, the bobbin stopper plate 24 of the bobbin delivery device 12
When the auxiliary gate means 34 closes the bobbin after dropping the bobbin, the bobbin stopper plate 24 of the bobbin delivery device 12 completely opens the bobbin stock part 18 and the bobbin stopper plate 25 closes the bobbin stock part 18. And the bobbin stoppers 24 and 25 return to their original positions.
The upper bobbin B1 dropped from the peg conveyor 30
By the end of the pitch movement, the lower bobbin B2 is prepared on the bobbin receiving portion 40 of the auxiliary gate means 34.

Next, the operation will be described with reference to FIG. The empty bobbin B is pushed up to the bobbin stock portion 18 by the lattice conveyor 3 and is stocked. On the receiving member 40 of the auxiliary gate means 34, the upper bobbin B1 from the bobbin stock portion 18 is fed by the bobbin sending device 12. The lower bobbin B2 is prepared by being dropped into the bobbin passage 19 one by one with the large diameter portion facing downward. When the pegs 31 on the peg conveyor 30 are conveyed by one pitch and intermittently stopped at the receiving position P directly below the bobbin chute 4, the bobbin delivery device 12 starts to be opened by the motor 20 (the bobbin stopper plate 24 is completely closed until the auxiliary gate means 34 is closed). The upper bobbin B1 does not fall down, and the upper bobbin B1 does not fall), and the auxiliary gate means 34, which has closed the bobbin passage 19, opens, and the lower bobbin B2 on the receiving member 40 falls freely from the intermediate height position onto the peg 31. When the lower bobbin B2 passes through the bobbin receiving portion 40, the auxiliary gate means 34 closes the bobbin passage 19 at the timing when the lower bobbin B2 passes through the bobbin receiving portion 40. To open. Then, the empty bobbin B is moved to the peg 31 by the photo switch 41.
When it is detected that the pegs 31 are mounted on the bobbin, the upper bobbins B1 of the bobbin stock section 18 are thickened one by one by the bobbin delivery device 12 until the pegs 31 stop one pitch in parallel. Bobbin passage 19 with the diameter part down
The upper bobbin B1 is received by the receiving member 40, and is prepared as the next lower bobbin B2.

The time of one pitch intermittent conveyance of the peg 31 is represented by T
p, the falling time from the bobbin sending device 12 to the auxiliary gate means 34 is Ta, and the falling time from the auxiliary gate means 34 is Tb, the cycle time of the conventional empty bobbin supply device without the auxiliary gate means 34 is the bobbin sending device. Although it took time to add the total fall time from T12 to the peg and Tp, in the present invention, the cycle time was reduced by the auxiliary gate because part of the fall time from the bobbin delivery device 12 was overlapped during the intermittent movement of the peg 31. This is the time obtained by adding the drop time Tb from the means 34 and the transport time Tp, and the cycle time is shorter than in the conventional case. Further, since the falling distance is short, the bobbin does not bounce, and the drop impact on the bobbin and the peg is reduced. In addition, another bobbin receiving piece is provided near the top of the empty peg 31 at the receiving position P as disclosed in Japanese Patent Publication No. 52-7627, and the bobbin receiving piece is dropped from the auxiliary gate means 34. After placing bobbin B2, peg 3
1 may be moved to push the receiving piece to receive the lower bobbin B2.

[0015]

As described above, according to the empty bobbin supply device of the present invention, the auxiliary gate means is provided at the intermediate height position between the gate means and the receiving position, and the gate means is used until the empty bobbin carrier stops. The dropped empty bobbin is received by the auxiliary gate means, and when the empty bobbin carrier is intermittently stopped at the receiving position, the empty bobbin falls from the auxiliary gate means onto the empty bobbin carrier. Of the empty bobbin, the empty bobbin carrier, and the like, the damage to the empty bobbin and the like is prevented, and the bobbin is prevented from jumping up. Further, the falling time of the empty bobbin to the empty bobbin carrier is reduced, and the cycle time of the empty bobbin supply device is reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an empty bobbin supply device.

FIG. 2 is an enlarged front view of FIG.

FIG. 3 is a time chart showing the operation of the empty bobbin supply device.

[Explanation of symbols]

 Reference Signs List 1 empty bobbin supply device 4 bobbin chute 12 gate means 19 bobbin passage 20 drive source 26, 35 drive system 31 bobbin carrier 34 auxiliary gate means B empty bobbin P receiving position

Claims (3)

[Claims] 1. A bobbin carrier, which is intermittently stopped at a receiving position below a bobbin chute, comprising: gate means for dropping empty bobbins one by one above the bobbin chute.
In the empty bobbin supply device in the spinning machine that feeds one by one, the bobbin chute is provided with auxiliary gate means capable of opening and closing the bobbin passage of the bobbin chute at an intermediate height position between the receiving position and the gate means. An empty bobbin dropped by the gate means can be received,
Further, the empty bobbin supply device is provided at a height position where the bobbin carrier at the receiving position does not interfere with the operation of receiving and moving the empty bobbin. 2. The auxiliary gate means, wherein the empty bobbin carrier receives an empty bobbin dropped by opening the bobbin passage by the auxiliary gate means at the receiving position, and the next empty bobbin carrier is located at the receiving position. 2. An empty bobbin feeder according to claim 1, wherein the auxiliary bobbin closing the bobbin passage is associated with the gate means so as to prepare the next empty bobbin to be supplied. 3. The empty bobbin supplying device according to claim 2, wherein the gate means and the auxiliary gate means are mechanically connected to a common drive source via respective corresponding drive systems.