JPH0613273Y2 - Bobbin detector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a bobbin detection device for detecting a bobbin on a peg of a bobbin transfer device.

(Prior Art) In spinning machines such as ring spinning machines and ring twisting machines, pipe replacement work is being automated. In this case, if the spinning machine or the like is restarted after the bobbin is not attached to the spindle after the pipe replacement work, the yarn may be wound around the spindle. In order to prevent this inconvenience, it is necessary to check whether or not the bobbin is mounted on the peg of the bobbin transfer device, which carries in a predetermined number of empty bobbins at the position corresponding to the spindle rail, prior to the operation of the pipe changing device. There is a need. As a bobbin detection device that performs this confirmation, the seventh
The one shown in the figure has been proposed (Japanese Patent Laid-Open No. Sho 50-9424).
No. 0). This apparatus is provided with a shaft 74 that is movable in a direction orthogonal to the moving direction of a belt 71 of a belt conveyor and that is biased by a spring 72 in a direction to engage with a peg 73. The feeler 7 fixed to the shaft 74
The dog 7 fixed to the shaft 74 due to the difference in the displacement amount of 5
Actuator 79 of two micro switches 79, 80 in which the engaging portions 77, 78 of 6 are provided above the shaft 74.
By engaging with a and 80a, the presence or absence of the peg 73 and the bobbin 81 is detected.

(Problems to be Solved by the Invention) However, in the conventional device, the position of the feeler 75 is set to the position of the feeler 75 within a distance D corresponding to the presence or absence of the bobbin 81 mounted on the peg 73.
a, 80a, the feeler 7
The movement range of 5 is narrow, and there is a possibility that malfunction may occur due to the accumulation of dust and the like. Also, in the case of a bobbin transfer device in which pegs are projected on the conveyor belt, there are relatively few malfunctions, but when it is applied to a transfer device using a peg tray, which has been attracting attention in recent years, it is necessary to move the peg tray and the peg tray. Due to the existence of the gap between the guide rails to guide,
Since the centers of many peg trays do not always move exactly on the same straight line, malfunctions are likely to occur. In the conventional device, the micro switch 79,
By using 80, it is determined whether or not the bobbin 81 is mounted on the peg 73 by a combination of ON and OFF. Therefore, the bobbin is mounted on the peg even when it should be judged as normal. Is detected,
Since the on / off state of the micro switch is different from when neither the peg nor the bobbin is detected, the two cannot be treated the same. Therefore, there is also a problem that the circuit configuration becomes complicated.

The purpose of the present invention is to treat the case where the bobbin is mounted on the peg and the case where both the peg and the bobbin are not detected, in the same way, and to detect the detection position and non-detection position of the sensor. An object of the present invention is to provide a bobbin detection device that can take a large movement range and is unlikely to cause malfunction.

(Means for Solving the Problems) In order to achieve the above object, in the present invention, the bobbin transporting device is reciprocably disposed above a peg and at a position intersecting a movement locus of the peg and a retracted position. And a first movable member urged by an elastic member toward the side intersecting the movement locus, and reciprocally movable in the same direction as the first movable member at a position at which the peg can be engaged. Is arranged in a state of being urged to
A second movable member that is engaged with the movable member of the second movable member and is restricted from moving to the side intersecting the movement locus, and is fixed to either one of the movable members, and both movable members are in an engaged state. And a sensor for detecting it.

(Operation) The bobbin detecting device of the present invention is located at a position corresponding to the bobbin detecting device when both the bobbin and the peg are located at a position where both the first movable member and the second movable member intersect the movement path of the peg. It will be kept in place. At this time, since the second movable member is in the engaged state with the first movable member,
The sensor detects it and determines that it is normal. When the bobbin mounted on the peg is located at a position corresponding to the detection device, the first movable member is brought into contact with the bobbin mounted on the peg to restrict movement in a direction intersecting the movement locus. In addition, the second movable member is engaged with the first movable member to restrict movement to the side intersecting the movement locus. Therefore, in this case as well, the relative positions of both movable members are the same as when both the bobbin and the peg are absent, and the sensor operates in the same manner as described above. On the other hand, when there is a peg with no bobbin attached at a position corresponding to the detection device, the first movable member moves to a position above the peg and intersects the locus of movement of the peg by the action of the elastic member, When the second movable member comes into contact with the peg, the movement toward the side intersecting the movement locus is restricted. Therefore, the engagement state between the first movable member and the second movable member is released, the sensor is in a state opposite to the normal state, and it is detected that the bobbin is not mounted on the peg.

(Embodiment 1) A first embodiment in which the bobbin detection device of the present invention is embodied as a pipe changer for moving pipes by moving along a spinning machine base 1
4 to 4 will be described. Prior to pipe change, the pipe changer 3 that moves along the conveyor device 2 that uses the peg tray 1 as the bobbin conveyance device that conveys the empty bobbin along the spindle rail includes the side wall 4 on the side corresponding to the conveyor device 2. A support bracket 5 is fixed to the outer surface of the support bracket 5, and a support shaft 6 is fixed to the support bracket 5 in a state of vertically extending. A first movable member 7 is provided substantially at the center of the support shaft 6 at a position where the arm portion 7a crosses the peg 1a above the peg 1a protruding from the peg tray 1 moving on the conveyor device 2. It is rotatably supported in a retracted position approaching the side wall 4 side. In order to urge the first movable member 7 to the support shaft 6 in a direction intersecting the movement locus of the peg 1a, one end is fixed to the movable member 7 and the other end is above the movable member 7 and the support shaft 6 is provided. A torsion spring 9 as an elastic member is wound in a state of being fixed to the collar 8 fixed to the. A second movable member 10 is provided below the support shaft 6,
The arm portion 10a is reciprocally supported at a position where it can be engaged with the peg 1a, like the first movable member 7, and one end thereof is fixed to the collar 11 fixed to the support shaft 6 and the other end thereof is A torsion spring 12 fixed to the movable member 10 urges the peg 1a to a side intersecting the movement locus of the peg 1a. The tips of both arms 7a, 10a are bent to prevent the tube changer 3 from being caught by the bobbin when returning to the standby position.

At the base end of the arm portion 10a of the second movable member 10, a mounting piece 13 is attached.
Are projected upward, and the second movable member 10 crosses the movement locus of the first movable member 7 by engaging the arm portion 7a of the first movable member 7 at the upper end of the mounting piece 13. The adjustment pin 14 that restricts the movement to the side is screwed. As shown in FIG. 2, the adjustment pin 14 is provided on the arm portion 7 of both movable members 7 and 10.
When a and 10a are arranged in substantially the same plane, the protrusion amount thereof is adjusted so that the tip end abuts on the arm portion 7a of the first movable member 7. Arm 10 of second movable member 10
a A mounting portion 15 bent toward the side wall 4 is provided at a substantially central portion, and a bolt serving as a dog 16 is fixed to the mounting portion 15. On the other hand, the arm portion 7a of the first movable member 7 is also provided with a mounting portion 17 that is formed by bending so as to face the mounting portion 15 at the center portion, and the mounting portion 17 has both movable members 7 and 10. Engagement state, that is, adjustment pin 14
A proximity switch 18 as a sensor is fixed at a position facing the dog 16 in a state of being in contact with the arm portion 7a of the first movable member 7.

Inside the side wall 4, a rotary solenoid 20 is fixed above the support bracket 5 via a bracket 19. A lever 21 is integrally rotatably fixed to the lower end of the drive shaft of the rotary solenoid 20, and one end of the lever 21 and a connecting portion 22 formed by bending toward the base end of the arm portion 7a of the first movable member 7 are formed. They are connected via a connecting link 23. The connecting portion 22 is formed with a long hole 22a that allows the pin 24 to move. A dog 25 is fixed to the other end of the lever 21, and the first movable member 7 is attached to the bracket 19 after the work of the pipe changer 3 is completed and then returned to its original position. The proximity switch 26 is fixed at a position corresponding to the dog 25 when the lever 21 is rotated to a position arranged at a standby position (a position shown in FIG. 3) where it does not come into contact with (not shown).

Next, the operation of the device configured as described above will be described. When the spinning machine stops due to a full pipe command, the pipe changing machine 3 waiting at the machine frame end starts moving along the frame of the spinning frame to perform pipe changing work. In the standby state, the lever 21 is held at the position shown in FIG. 3, and both the first movable member 7 and the second movable member 10 are held at the standby position shown in FIG.
The rotary solenoid 20 is actuated before the pipe replacement work is started, and the lever 21 is rotated counterclockwise in FIG.
Along with this, the first movable member 7 and the second movable member 10 are arranged at the operating positions shown in FIG. Both movable members 7, 1
With 0 placed in the working position, both arms 7a, 10a
In a state in which is not engaged with either the empty bobbin E or the peg 1a, both arms 7a and 10a are held at a position intersecting the movement locus of the peg 1a, that is, a position shown by A in FIG. In this state, as the pipe changer 3 moves, the peg tray 1 relatively moves to the right in FIG. 4, and when both arms 7a and 10a come into contact with the empty bobbin E mounted on the peg 1a, both moveable. The members 7 and 10 are torsion springs 9 as the pipe changer 3 moves.
It is integrally rotated in the clockwise direction in FIG. 4 against the elastic force of 12 and moves to the position indicated by C in FIG. During this time, the movable members 7 and 10 are in the engaged state with each other, and the proximity switch 1
It is confirmed that 8 is in the normal state by detecting the dog 16 and being held in the ON state.

On the other hand, when the detection device passes the position corresponding to the peg tray 1 in which the empty bobbin E is not mounted on the peg 1a, the arm portion 7a of the first movable member 7 cannot engage with the peg 1a. 4 held in position A, but second
The movable member 10 has a torsion spring 12 up to the position shown by B in FIG. 4 by engaging the arm portion 10a with the peg 1a.
It is rotated against the spring force of. As a result, the position of the dog 16 does not face the proximity switch 18, the proximity switch 18 is turned off, and it is detected that there is no empty bobbin E on the peg 1a. In this case peg 1a
After the worker mounts the empty bobbin E on the upper side, the work is continued.

When the pipe changer 3 is moved to the end of the conveyor device 2 and the pipe change operation is completed, the rotary solenoid 20 is operated and the lever 21 is rotated clockwise in FIG. As a result, the first movable member 7 is rotated clockwise through the connecting link 23 and the connecting portion 22, and the second movable member is also adjusted by the adjusting pin 1.
Since 4 is in contact with the arm 7a, it is rotated integrally in the same direction and moved to the standby position shown in FIG. When the lever 21 is placed in the standby position, the proximity switch 26 detects the dog 25 and is turned on, so that both movable members 7 and 10 cannot be engaged with the full thread attached to the peg tray 1 by this on signal. It is confirmed that the pipe changer 3 has been placed in the standby position, and the pipe changer 3 starts moving to the original position.

(Embodiment 2) Next, a belt conveyor 28 in which pegs 27a are projected on the belt 27 at predetermined intervals is used as a bobbin transport device.
A second embodiment embodied in a device fixed to a position corresponding to one end of the belt conveyor 28 will be described with reference to FIGS. A pair of support brackets 30 and 31 extending in parallel in the vertical direction are fixed to a frame 29 of the belt conveyor 28, and a support shaft 32 as a first movable member is provided between the support brackets 30 and 31 above the peg 27a. It is supported via a bearing 33 so as to be capable of reciprocating in a direction orthogonal to the belt 27. As shown in FIG. 6, the tip of the support shaft 32 extends in parallel with the belt 27 and the guide portions 3 are provided at both ends.
A feeler 34 having 4a is fixed, and a stopper 35 is fixed at a substantially central portion of the feeler 34, and a spring 36 interposed between the stopper 35 and the support bracket 31 attaches the feeler 34 to a side intersecting with a movement locus of the peg 27a. It is energized. A support shaft 37 as a second movable member is supported below the support shaft 32 in parallel with the support shaft 32 via a bearing 38, and a feeler 39 is fixed to the tip thereof. Spindle 3
As shown in FIG. 5 (a), both feelers 34, 39
Is fixed at a position where it engages with the stopper 35 when they are arranged at substantially the same position, and is urged toward the side that engages with the peg 27a by a spring 41 interposed between the stopper 40 and the support bracket 31. ing. A dock 43 is fixed to the rear end of the support shaft 37 via a bracket 42,
At the rear end of the support shaft 32, a proximity switch 44 is fixed at a position facing the dog 43 when both feelers 34, 39 are arranged at the same position.

In this apparatus, when the bobbin is mounted on the peg 27a, that is, when both the peg 27a and the empty bobbin E are absent, the positions of the tips of the feelers 34 and 39 are the same, and the proximity switch 44 is the dog 43. Is held in the state of detecting. On the other hand, when the empty bobbin E corresponds to the peg 27a to which the empty bobbin E is not mounted, as shown in FIGS. 5 (b) and 6, the support shaft 37 as the second movable member.
Is retracted, the detection of the dog 43 by the proximity switch 44 becomes impossible, and it is detected that the empty bobbin E is not attached to the peg 27a.

The present invention is not limited to the above-described embodiments, and for example, the proximity switches 18 and 44 are provided on the second movable member 10 and the support shaft 37 side, and the dogs 16 and 43 are provided on the first movable member 7. , It should be installed on the support shaft 32 side,
A photoelectric switch may be used as the sensor instead of the proximity switch.

(Effect of the Invention) As described in detail above, according to the present invention, the relative positional relationship between the movable members when the bobbin is mounted on the peg which should be judged to be normal and when both the peg and the bobbin are not present. Becomes the same, and one sensor can distinguish between normal and abnormal, so that the circuit configuration becomes simple. Further, unlike the conventional device, the moving range of both movable members for distinguishing between the normal state and the abnormal state can be made larger than the thickness of the bobbin, and not only the malfunction caused by the accumulation of the cotton wool can be eliminated but also the bobbin transfer using the peg tray. Even when applied to a device, an abnormal state can be detected reliably without causing a malfunction.

[Brief description of drawings]

1 to 4 show a first embodiment embodying the present invention, wherein FIG. 1 is a side view and FIG. 2 is XX of FIG.
5 is a sectional view taken along the line, FIG. 3 is a plan view, FIG. 4 is a plan view showing the operation, and FIGS.
FIG. 5A is a side view of a normal state, FIG. 5B is a side view of a state in which only a peg is detected, FIG. 6 is a plan view of the same, and FIGS. 7A and 7B are of a conventional device. It is a side view. Pegs 1a, 27, first movable member 7, arm 7a, second
Movable member 10, arm portion 10a, torsion springs 9 and 12 as elastic members, adjustment pins 14, proximity switches 18 and 44 as sensors, a support shaft 32 as a first movable member, a feeler 34, and a second movable member. A support shaft 37 as a member, a feeler 39, springs 36 and 41 as elastic members, and an empty bobbin E.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takayuki Morita, 2-chome, Toyota-cho, Kariya city, Aichi prefecture, Toyota Industries Corporation (72) Inventor, Takahiko Tsunekawa 2-chome, Toyota-cho, Kariya city, Aichi prefecture Stock company Toyota Automatic Loom Works

Claims (1)

[Scope of utility model registration request] 1. A bobbin transporting device is disposed reciprocally above a peg of a bobbin transporting device at a position intersecting the movement locus of the peg and a retracted position, and is urged by an elastic member to a side intersecting the movement locus. The first movable member is disposed so as to be reciprocally movable and biased in the same direction as the first movable member at a position where the first movable member can be engaged with the first movable member. A second movable member which is engaged with the member and whose movement toward the side intersecting the movement locus is restricted; and a second movable member which is fixed to one of the movable members and is in the engaged state. A bobbin detection device equipped with a sensor for detecting.