JPS6257952A - Detection apparatus of improper engagement of roving bobbin - Google Patents

Abstract

PURPOSE:To surely detect improper engagement conditions and avoid damage of bobbins or flyers, by detecting the amount of operation of an operating member provided in the branched fork part of a doffing arm with a detection means. CONSTITUTION:If grooves of a bobbin 6 and protrusions 13 of a bobbin wheel are not in a corresponding state, a doffing arm 17 continues the lowing movement to lift the empty bobbin 6 relatively to the branched fork part 18. A lever 24 is rotated counterclockwise by action of a magnet (25a) attracted to an iron plate on the bottom of a flange part (6a) and an operation part (24a) of the lever 24 does not correspond to a proximity switch 23. Thereby, the proximity switch 23 becomes in an off state and improper engagement conditions can be detected.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a device for detecting incorrect fitting of a roving bobbin in a spinning pattern.

(Prior Art) In conventional roving machines, the bobbin insertion work after doffing was reliably performed manually, so there was no need to detect whether the bobbin was inserted incorrectly, that is, if it was incorrectly fitted to the bobbin wheel. However, due to the automation of doffing work and bobbin insertion work for the purpose of improving productivity and saving labor, the bobbin 42 is inserted in an inclined state with respect to the bobbin wheel/41 as shown in Fig. 13. occurs. In other words, for example, the 1980-67 Utility Model released on May 9, 1982.
Like the bobbin disclosed in Japanese Patent No. 857, a sawtooth-shaped 44 that can fit into a protrusion 43 protruding from the outer periphery of the bobbin wheel 41 is formed on the entire circumference of the inner peripheral surface of the bottom of the bobbin 42. There is. When inserting this bobbin, the saw +'1
! The iI-shaped groove 44 is guided by the taper of the protrusion 43 and is fitted into the protrusion 43, so that it is fitted into the bobbin wheel 41 in a vertical position. However, as shown in FIG. 13, there are horizontal portions 45 between the serrated grooves 44 formed on the bobbin 42, and the bobbin wheel 4
Coupled with the fact that there is only one pair of protrusions 43 in No. 1, if the bobbin 42 is inserted with the horizontal part 45 and the protrusions 43 corresponding to each other, the tip of the protrusion 43 will be in the horizontal part 45. The serrated groove 44 does not automatically fit into the protrusion 43. Moreover, since the shaft of the bobbin wheel 41 only slightly protrudes above the part where the protrusion 43 is formed,
There may also be cases where the bobbin 42 is fitted into the bobbin wheel 41 in a tilted state, or the bobbin 42 falls. The bobbin wheel 4 is used to prevent the bobbin 42 from falling over.
If the number of protrusions 43 in 1 is three or more, the bobbin 4
Even when the bottom surface of the bobbin wheel 2 rests on the protrusion 43 of the bobbin wheel 41, it remains upright. However, the bobbin 42 tends to tilt due to impact when the engagement between the bobbin 42 and the tube changing arm of the tube changing machine is released or when the bobbin rail 46 is moved upward. When the bobbin rail 46 is raised to the line winding position while the bobbin 42 is inserted in an inclined state with respect to the bobbin wheel 41, the top of the bobbin 42 collides with the lower end of the spindle 47 of the flyer, causing the bobbin 42 to Otherwise, there are inconveniences such as damage to the flyer or trouble in winding the braided yarn. Therefore, prior to the raising of the bobbin rail 46, there is an abnormality in the insertion of the bobbin 42, that is, the bobbin wheel 4
It is necessary to detect incorrect fitting of the bobbin 42 to the bobbin 1.

As a means of detecting the bobbin 42 inserted in a tilted state with respect to the bobbin wheel 41, as shown by the chain line in FIG.
It is also conceivable to arrange the photoelectric switch 48 so that the light travels along the direction, and to detect insertion abnormality by blocking the light with the inclined bobbin. However, in this case, there is a disadvantage that if the bobbin 42 is tilted along the longitudinal direction of the bobbin rail 46, an abnormality cannot be detected.

(Problems to be Solved by the Invention) This invention solves the problem of the flyer spindle and bobbin being connected to each other due to the fall of the bobbin or poor fitting that may occur when the bobbin is inserted into the bobbin wheel using an automatic tube M machine. This solves the problem of damage to the bobbin or flyer due to collision.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, in this invention, the height of the bobbin with respect to the bobbin wheel is changed to the height of the tube changing arm lowered to the bobbin insertion position and the bobbin. It is now possible to detect the difference between In other words, an actuating member equipped with a member to be attracted to be attracted to an attraction member provided on the top flange of the roving bobbin is movably disposed on the fork part of the tube changing arm of the automatic tube changing machine, and Detection means for detecting when the actuating member moves by a predetermined amount or more due to relative movement of the bobbin top when the top of the bobbin suspended and supported by the fork fork separates from the fork, and generates an electric signal. We adopted a configuration in which the

(Function) In the present invention, the tube changing arm of the automatic tube changing machine moves with the bobbin suspended and supported at its top flange.

The actuating member movably disposed on the two-forked fork portion is attracted to a suction member provided on the top flange portion of the bobbin that is suspended and supported by the two-forked fork portion. Therefore, when the two-pronged fork that suspends and supports the bobbin probes downward from the top of the bobbin, that is, when the top of the bobbin moves upward relative to the three-pronged fork, the relative movement of the top of the bobbin occurs. The actuating member moves together with the 7 flange. When the tube changing arm moves down to the predetermined position, the position of the top of the bottle differs between when the bobbin is inserted into the bobbin wheel in a normal state and when it is in an incorrect state, that is, when it is in contact with the upper end of the protrusion of the bobbin wheel. The distance from the fork part is different.

Therefore, in the incorrect bottom state, the initial movement of the actuating member that is attracted to the top of the bobbin and moves with the top of the bobbin is larger than the predetermined amount of movement in the normal fitted state, and when the actuating member moves a predetermined distance, it approaches the top of the bobbin. The movement is detected by a detection means such as a switch or a photoelectric switch, and an electric signal is generated to detect failure and match.

(Example 1) Hereinafter, a first example in which the present invention is embodied in an intermittent moving pipe changing machine will be described with reference to FIGS. 1 to 9.

As shown in FIG. 4, the tube changing machine 1 moves intermittently along a pair of rails 3 laid parallel to the Rover B1 machine 2 to perform tube changing operations. The tube changing machine 1 is guided by the cam grooves of a pair of cam plates (not shown) that are operated to move up and down, and is operated to move downward, and runs on a running rail 4 that is installed above the front of the Rover machine stand 2. An empty bobbin lifter 7 serves to pick up an empty bobbin 6 suspended from the bobbin carrier 5 and lower it to a lower position. a full bobbin lifter 9 that functions to mount the empty bobbin 6 at the removed position;
Moving in the horizontal direction, a full bobbin 8 is taken out from above the bobbin rail 10 of the rover frame n 2 and placed on the full bobbin lifter 9, and at the same time, an empty bobbin 6 is taken out from above the empty bobbin lifter 7 and the bobbin wheel 11 is placed on the bobbin rail 10. A device consisting of a pipe switching mechanism 12 that serves to insert the pipe into the pipe is provided.

As shown in FIG. 5, the bobbin wheel 11 has eight protrusions 13 having the same shape all around the outer circumference of the bobbin fitting part.
are formed continuously. The lower part of the protrusion 13 is formed in the shape of a triangular prism extending in the vertical direction, and the upper part has a tapered tip 13a with a sharp tip that acts as a guide when inserting the bobbin.
and a pointed end 13 formed at the taper 13a.
b is formed. The bobbin 6.8 has flange portions 6a and 8a formed at its top, and an iron plate 14 is fixed to its lower surface as shown in FIG. Also, bobbin 6, 8
As shown in FIG. 7, a triangular tooth-shaped groove 15 that can fit into the protrusion 13 of the bobbin wheel 11 is continuously formed on the lower inner circumferential surface of the bobbin wheel 11 over the entire circumference.

The pipe changing mechanism 12 is configured to move the pipe changing arm 17 attached to the mounting box 16 in the front-rear direction (left-right direction in FIG. In addition, the entire structure 12 between the tubes is configured to be movable up and down by an operating mechanism (not shown), and a full bobbin 8 can be lifted out of the bobbin wheel 11 of the bobbin rail 1o, or an empty bobbin 6 can be inserted into the bobbin wheel 11. It is supposed to be done.

As shown in FIG. 1.2, a recess 19 into which the flange portions 6a and 8a of the empty bobbin 6 or the full bobbin 8 is inserted is formed on the inner side of the upper surface of the distal fork portion 18 of the tube change arm 17. One of the recesses has an inner circumferential surface 19a formed in a tapered shape that expands upward, and a plurality of magnets 20 are attached to the bottom surface of the concave portion, each of which is an adsorption member that adsorbs the iron plate 14 fixed to the lower surface of the flange portions 5a and 8a of the bobbin. It is fixed.

A housing recess 21 is formed on the upper surface of one of the support pieces 18a of the two-pronged fork portion 18, and is open at one end in a direction perpendicular to the longitudinal direction of the tube change arm 17.

Further, the one support piece 18a at the base end of the two-pronged fork portion 18
A support bin 22 is protruded from one side on the same side as the support bin 22, and a proximity switch 23 is disposed diagonally below the support bin 22 at the rear. A lever 24 formed from an iron plate in a substantially curved shape is rotatably supported on the support bin 22, and an actuating lever 24 is accommodated in the housing recess 21 at the tip thereof and has a magnet 25a fixed to the tip. A member 25 is fixed.

One end of the outer circumference of the support bin 22 is connected to the lever 24.
A torsion spring 2G is wound around the torsion spring 2G whose other end is fixed to the pipe switching arm 17, and the actuating member 25 which is fixed to one end of the lever 24 is normally attached to the accommodation recess 2 as shown in FIG. 2.3.
1, and the other end operating portion 24a of the lever 24 is held in a state located near the proximity switch 23.

Next, a description will be given of a pipe change operation using the apparatus configured as described above. When working on the tube bolt, the tube VI release 1 is connected to the bobbin rail 1.
It stops at a predetermined position corresponding to the full bobbin 8 on the top. In this state, the empty bobbin lifter 7, the full bobbin lifter 9, and the tube changing mechanism 12 are operated to remove the empty bobbin 6 from the bobbin transport body 5, which suspends the empty bobbin 6 on the traveling rail 4 and waits, and replaces the empty bobbin 6 with the bobbin rail 10. A tube change operation is performed in which the full bobbin 8 taken out from the bobbin is hung on the bobbin carrier 5 and the empty bobbin 6 is inserted into the bobbin wheel 11 of the bobbin rail 10.

By the operation of the tube changing mechanism 12, the tube changing arm 17 is moved between the bobbin wheel 11 on the bobbin rail 10 and the empty bobbin, as shown in FIG. 6 is horizontally moved to the corresponding position. When the empty bobbin 6 is not suspended in the recess 19 of the forked fork portion 18, the operating portion 24a of the lever 24 and the proximity switch 23 do not correspond to each other, as shown in FIG. is held off. On the other hand, when the empty bobbin 6 is suspended and supported on the recess 19, the iron plate 25a of the operating member 25 housed in the housing recess 21 is fixed to the lower surface of the flange 6a of the empty bobbin 6. The force that tries to attract 14 is a plow,
The lever 24 resists the force of the torsion spring 26 and the support pin 22
It is rotated counterclockwise in Fig. 3 around <a> in Fig. 9.
The state shown in is reached. At this time, the operating portion 24a of the lever 24 corresponds to a part of the proximity switch 23, so that the proximity switch 23 is turned on, and it is confirmed that the empty bobbin 6 is suspended from the forked fork portion 18.

From this state, the tube changing arm 17 is moved downward to insert an empty bobbin into the bobbin wheel 11.

At this time, the tube change arm 17 is connected to the empty bobbin 6 on the bobbin wheel 11.
The two-pronged fork portion 18 is reliably fitted to the empty bobbin 6, and the two-pronged fork portion 18 is disengaged from the empty bobbin 6, and is moved downward to a predetermined height that does not interfere with the backward movement of the two-pronged fork portion 18. Groove 15 provided at the bottom of empty bobbin 6 and bobbin wheel 1
When the empty bobbin 6 is supported on the two-pronged fork part 18 with the protrusion 13 of 1 being 7.1 or 1J, the tube change arm 1
When the bobbin wheel 7 moves downward, the 11' full 15 and the protrusion 13 of the bobbin wheel 11 are surely opened, and the empty bobbin 6 is inserted into the bobbin wheel 11 in a vertical position. In this case, when the downward movement of the tube change arm 17 is completed, all forks 18
The engagement state between the flange portion 6a of the empty bobbin 6 and the empty bobbin 6 is released, and the flange portion 6a is in a state separated from the upper surface of the forked fork portion 18. At this time, the lever 24 is further rotated counterclockwise from the position shown in FIG. 9(a) by the action of the magnet 25a of the actuating member 25 to the state shown in FIG. 9(b), but the operating portion 24a is Since the position corresponds to the proximity switch 23, the proximity switch 23 is kept in the on state. When the downward movement of the pipe switching arm 17 is completed while the proximity switch 23 is kept in the ON state, the pipe switching mechanism 12 is activated based on a detection signal from a downward movement end detection means (not shown). It is moved backwards to the samurai hall shown in the figure.

On the other hand, if the groove 15 and the protrusion 13 do not correspond,
During the downward movement of the tube changing arm 17, the bottom of the empty bobbin 6 touches the protrusion 1 of the bobbin wheel 11, as shown in FIG. 9(C).
It comes into contact with 3.

When the tube change arm 17 continues to move downward in this state, the forked fork part 18 continues to move downward, but the bottom of the empty bobbin 6 is in contact with the protrusion 13 of the bobbin wheel 11, which prevents the downward movement. As a result, the empty bobbin 6 moves upward relative to the forked fork portion 18. and 7 lunge part 6a
The lever 2 is moved by the action of the magnet 25a attracted to the iron plate 14.
4 is rotated counterclockwise as the pipe changing arm 17 descends, and when the downward movement of the pipe changing arm 17 is completed, it will be in the state shown in FIG. 9(C). In this state, the action portion 24 of the lever 24
Since a does not correspond to the proximity switch 23, the proximity switch 23 is turned off, and it is confirmed that the empty bobbin 6 is poorly fitted to the bobbin wheel 11. Therefore, in this state, the operator rotates the empty bobbin 6, which is in a poorly fitted state, to ensure bX alignment with the bobbin wheel 11, and when the tube change arm 17 moves to the standby position or restarts the stand. The empty bobbin 6 is reliably prevented from overturning or colliding with the flyer spindle when the bobbin rail 10 moves upward.

In addition, instead of manually inserting the empty bobbin 6 in the incorrectly fitted state into the normal state, the tube switching arm 17 is moved up and down again based on an electric signal that turns off the proximity switch 23. 11h112 may be activated. When the pipe changing arm 17 moves upward, the empty bobbin 6 is again suspended and supported by the forked fork part 18. At this time, the empty bobbin 6 is not suspended in exactly the same state as the previous suspension support position, so when moving downward, the positional relationship between the groove 15 of the empty bobbin 6 and the protrusion 13 of the bobbin wheel 11 is the same as that of the previous downward movement. It will be different from time to time. Therefore, in the case of improper fitting, the empty bobbin 6 can be removed from its groove 1 by avoiding the lifting and lowering operation of the pipe switching arm 17 again.
5 is fitted into the protrusion 13 of the bobbin wheel 11, and is vertically fitted onto the bobbin wheel 11.

(Example 2) Next, a second embodiment will be explained according to FIGS. 10 to 12.

In the embodiment described above, the actuating member 25, which is moved by being attracted to the flange portion 6a of the empty bobbin 6, is attached to the tip of the lever 24, which is rotatably supported by the support bin 22. However, in the device of this embodiment, It was attached via a guide member 27 to a lever 28 supported so as to be movable up and down. That is, a vertically elongated guide member 27 is provided protrudingly from one side of the support piece 18a, and a lever 28 having an inverted cross-section and a long hole 28a is inserted so that the long hole 28a is aligned with respect to the guide member 27. In the fitted state, it was supported by the support piece 18a so as to be movable up and down. The lever 28 is made of a non-metallic material, and has a metal operating part 28 at its lower end that serves as an actuator for the proximity switch 23.
b is fixed. Therefore, in this embodiment, the lever 28 moves up and down together with the actuating member 25 which attracts the flange 6a of the empty bobbin 6 and moves together with the flange 6a by the action of the magnet 25a, and the lower end of the lever 28 as in the previous embodiment. The fitting state of the empty bobbin 6 to the bobbin wheel 11 is determined based on the positional relationship between the operating portion 28b and the proximity switch 23 provided in the bobbin wheel 11. That is, the 11th
In the state where there is no bobbin as shown in the figure, the action portion 28b is in a state where it does not correspond to the proximity switch 23. When the empty bobbin 6 is suspended from the forked fork part 18, the magnet 25a of the actuating member 25 is attracted to the iron plate 14 of the flange part 6a, and the lever 28 is moved together with the actuating member 25 as shown in FIG. 12(a). When the actuating portion 28b is moved upward to the position shown in FIG. 3, the operating portion 28b becomes in a state corresponding to the proximity switch 23, and the proximity switch 23 is turned on.

The operating portion 28b of the lever 28 is in the position shown in FIG. 12(b), that is, the position corresponding to the proximity switch 23 until the empty bobbin 6 is inserted into the bobbin wheel 11 in a normal state and reaches the upward movement position. However, if the bobbin wheel 11 is improperly fitted to the bobbin wheel 11, that is, the bottom of the empty bobbin 6 rests on the protrusion 13 of the bobbin wheel 11, as shown in FIG. 12 (C'). The actuating portion 28b is moved upward to the position where the operating portion 28b does not correspond to the proximity switch 23, and the proximity switch 23 is turned off. Then, it is detected that the empty bobbin 6 is in an incorrectly fitted state based on the electric signal that indicates that the near 1 & switch 23 is turned off.

Note that the present invention is not limited to the above-mentioned embodiments, and for example, the operating portions 24a, 28b of the levers 24.28
Instead of detecting the movement of the levers 24 and 28 with the proximity switch 23, it may be detected with a photoelectric switch, or the movement of the levers 24 and 28 may be detected with a limit switch. Further, instead of the intermittent movement type pipe changer, a full-spindle-simultaneous system may be applied to each pipe VI.

Effects of the Invention As detailed above, according to the present invention, when inserting an empty bobbin into the bobbin wheel, it is possible to check whether the bobbin is properly fitted to the bobbin wheel or if the bobbin is poorly fitted. The operation of the actuating member provided on the fork part is different, and in a state of poor fitting, the actuating member moves more than a predetermined amount, and this movement is detected by the detection means and is emitted as an electric signal, so there is no possibility of improper fitting. fff can actually be detected,
Since you can immediately take the next step to correct the improperly fitted condition, it is possible to move the bobbin rail to the winding position with the incorrectly fitted condition in place, causing the bobbin and flyer spindle to collide, causing damage to the bobbin and flyer. This has the excellent effect of reliably avoiding the above.

[Brief explanation of the drawing]

1 to 9 show a first embodiment embodying the present invention, in which FIG. 1 is a plan view of a pipe switching arm, and FIG.
3 is a side view, FIG. 4 is a schematic side view showing the relationship between the tube B machine and the roving machine, and FIG. 5 is a perspective view of the bobbin wheel. The figure is a sectional view of the top of the bobbin, Figure ff17 is a bottom view of the bobbin, Figure 8 is a side view showing the state in which the tube changing arm has transferred the dobbin above the bobbin wheel, and Figures 9 (a) to (C) are A side view explaining the action,
10 and 12 show the second embodiment,
Fig. 10 is a plan view of the main part of the pipe switching arm, Fig. 11 is a sectional view taken along the line B-B of Fig. 1O, Fig. 12 (a) to (C) are sectional views explaining the action, and Fig. 13 is FIG. 14 is a side view showing a state in which the bobbin and the bobbin wheel are poorly fitted, and FIG. 14 is a bottom view of the conventional bobbin. Tube change FM1, empty bobbin 6, flange part 6a, bobbin wheel 11, protrusion 13, iron plate 14, groove 15, tube change arm 17,
Two-pronged fork part 18, support piece 18a, accommodation recess 21, proximity switch 23, lever 24°28, action part 24a,
28b, operating member 25, magnet 25a, torsion spring 26
゜Patent applicant Toyota Industries Corporation Nisshinbo Co., Ltd. Agent Patent attorney On 1) Hironobu Figure 1 78 18゜ Figure 2 Hi Dimensions゛6 Figure 9 (a) Figure 9 (C) Figure 10 Figure 11 Figure 12 (a) Figure 18 No rear drawing

Claims (1)

[Scope of Claims] 1. An operating member having a member to be attracted to be attracted to an attraction member provided at the top flange of a roving bobbin is movably disposed on a forked fork of a tube changing arm of an automatic tube changing machine. When the top of the bobbin, which is suspended and supported by the two-pronged fork part, moves away from the two-pronged fork part, the actuating member moves by more than a predetermined amount due to the relative movement of the bobbin top part, and it detects this and generates an electric signal. A device for detecting improper fitting of a roving bobbin, which is equipped with a detecting means that emits an error. 2. The actuating member is rotatably supported by a support pin provided at the base end of the two-pronged fork portion on one side of the tube switching arm, and is accommodated in a housing recess formed on the upper surface of the two-pronged fork portion at one end thereof. A lever to which a magnet as a potentially attracted member is fixed and is rotatably biased by a torsion spring so that the magnet is accommodated in the recess, and the other end thereof is provided with an actuator for actuating the detection means. An apparatus for detecting improper fitting of a roving bobbin according to claim 1. 3. The apparatus for detecting improper fitting of a roving bobbin according to claim 2, wherein the detection means is a proximity switch and the actuator is a metal piece. 4. The actuating member is disposed on one side of the two-pronged fork part so as to be able to move up and down, and at its upper end there is a magnet as a member to be attracted that can be accommodated in a housing recess formed on the upper surface of the two-pronged fork part. An apparatus for detecting improper fitting of a fixed roving bobbin according to claim 1.