JPH0637266B2 - Wire rod start end fixing device for wire rod winder and method of fixing wire rod start end - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire rod winding machine for winding a wire rod on a wire rod winding bobbin rotatably supported around a central axis, and to a mechanism for fixing the starting end of the wire rod.

[0002]

2. Description of the Related Art As a device for fixing the starting end of a wire in a conventional wire winding machine, as shown in FIG.
Japanese Patent No. 55267 discloses a wire rod leading end gripping device.

The wire rod leading end gripping device comprises a pair of left and right pivots 13 for supporting the axial center of the wire rod winding bobbin 3.
And a disc-shaped receiving body 14 fixed to one of the pair of left and right pivots 13, and a disc-shaped receiving body 14 that is closely spaced from the receiving body 14 and holds the starting end portion 5a of the wire rod 5. Pressed body 1
5, a proximity means 16 for moving the pressing body 15 closer to the receiving body 14, and a separating means 17 for separating the pressing body 15 from the receiving body 14 are provided, and both the pivots 13, the receiving body 14,
The pressing body 15 is configured to rotate integrally when winding the wire.

Then, the starting end 5a of the wire 5 is connected to the receiving member 14
Between the pressing body 15 and the pressing body 15, and the cylinder 27 of the separating means 17.
Is moved to the left to release the engagement with the pressing body 15. Then, the restoring force of the spring 24 of the proximity means 16 causes the pusher 15 to move.
Approaches the receiving body 14 and grips the starting end portion 5a. After that, the bobbin 3 rotates at a high speed by the rotation of the right shaft 18, and the wire 5 is automatically wound.

[0005]

In the above-mentioned prior art, the starting end portion 5a of the wire 5 gripped between the receiving body 14 and the pressing body 15 is projected together with the bobbin 3 while being wound outside when winding the wire. Since it rotates, it comes into contact with the wire rod that has been inserted into the bobbin 3, and the starting end portion 5a of the wire rod 5 is pressed into the bobbin 3 by the wire rod 5, and the starting end portion 5a of the wire rod 5 cannot be taken out. is there.

[0006] Therefore, in order to solve the above problem, the present applicant proposed in Japanese Patent Application No. 2-120440 to attach a cover for covering the starting end of the wire.

However, since the starting end portion of the wire rod protrudes from the gripping device, when the bobbin rotates, the wire rod also rotates, and the starting end portion of the wire rod may hit the cover, causing noise and cutting. If the cut wire gets caught in the machine, it may cause a failure.

In view of the above, it is an object of the present invention to provide a wire rod starting end fixing device for a wire rod winding machine which can fix the wire rod without projecting the starting end thereof.

[0009]

As shown in FIGS. 1 and 2, a means for solving the problems according to the present invention includes a gripping device 37 for sandwiching and gripping the starting end of the wire W, and a gripping device for gripping the starting end of the wire W. A check device 38 for leading to 37 and the check device 3
8 is provided around the bobbin 33, and the chucking device 38 grips the starting end of the wire W, and the chucking device 38 circulates around the bobbin 33 to pass the wire W through the gripping device 37. , The starting end portion Wa of the wire W is the gripping device 3
The chuck device 38 is circulated until the wire rod W is grasped by the gripping device 37, the chuck device 38 is released, and the clamp body 40 pushes the wire rod W while pushing the wire rod W.
The starting end portion Wa of the wire rod W is pushed into and the starting end portion Wa of the wire rod W protruding from the gripping device 37 is sandwiched.

[0010]

In the above means for solving the problem, when the wire W is fully wound on the bobbin 33, the wire W is gripped by the chuck device 38 and the wire W is cut.

The chuck 38 is rotated by the rotating device 39 while holding the starting end portion Wa of the cut wire W.

At this time, the wire rod W is sandwiched by the gripping device 37, and the chuck device 38 is rotated until the starting end portion Wa projects from the gripping device 37 and then stopped.
The wire W is gripped by the gripping device 37 and the chuck device 38 is released.

The starting end portion Wa of the wire W protruding from the holding device 37 is pushed toward the holding device 37 by the pusher 41, and the starting end Wa of the wire W is pushed into the sandwiching body 40.
It is sandwiched by the sandwiching body 40. As a result, the starting end portion Wa of the wire W does not stick out of the gripping device 37,
It does not interfere with the work of winding the wire W.

[0014]

EXAMPLE A wire winding machine according to this example is as shown in FIGS.
A drive device 34 that rotatably drives a wire rod winding bobbin 33 that is rotatably supported around a pair of left and right center shafts 31 and 32 in the winder main body 30, and a wire rod W that is reciprocally moved in the axial direction. And a guide device 35 for guiding the user.

The wire rod start end fixing device grips the wire rod W starting end Wa with a gripping device 37 which is attached to the central shaft 31 outside the flange 36 of the bobbin 33 and which holds and grips the wire rod W start end. A chuck device 38 that leads to the gripping device 37 and a rotating device 39 that orbits the chuck device 38 around the bobbin 33 are provided.

The gripping device 37 is provided with a sandwiching body 40 for sandwiching the start end portion Wa of the wire rod W protruding from the gripping device 37 among the gripped wire rods W, and the chuck device 38.
Then, the pushing body 4 for pushing the starting end portion Wa of the wire W into the sandwiching body 40.
1 is provided.

As shown in FIG. 2, the central shafts 31 and 32 are disposed in the winder main body 30 so as to face each other, and pivots 31a and 32a are attached to the respective tips. The central shaft 31 on one winder body 30 side is the winder body 30.
Are rotatably supported by bearings 50 and 51, the other central shaft 32 is axially movable, and the central shaft 32 is movable by a cylinder (not shown).

The bobbin 33 has the central axes 31, 32.
It comprises a cylindrical winding portion 53 having a central hole 52 that can be fitted into the pivots 31a and 32a, and flanges 36 formed at both ends of the winding portion 53.

An annular main body 54 for driving the bobbin is fixed to one end of the central shaft 31 protruding from the winder main body 30, and a pin 55 for engaging the bobbin 33 and rotating the bobbin 33 is projected to the main body 54. A spring 56 is provided which is retractably projected and biases the pin 55 in the projecting direction. On the other hand, the flange 36 of the bobbin 33 is formed with a hole 57 for inserting the pin 55.

The driving device 34 of the bobbin 33 includes a pulley 58 fixed to the rear end of the central shaft 31, a bobbin rotation motor 59 fixed to the winder body 30, and a motor pulley 60 of the motor 59. And a belt 61 wound around both pulleys 58 and 60. In addition, in the wire rod winder, the rotation of the central shaft 31 is stopped, and the winder body 30 is stopped.
A brake device for stopping the vehicle is provided.

The guide device 35 includes a pair of guide rollers 62a and 62b arranged laterally on the outer peripheral surface of the bobbin 33,
The guide device 35 is composed of straightening rollers 63a and 63b arranged between the two rollers, and is reciprocally movable in the axial direction by a traverse device.

A bending roller 64 is rotatably disposed around a fulcrum 64a on the side of the guide roller 62a in the wire rod advancing direction, and is rotated by a cylinder 64b. When the bobbin 33 is fully wound, the bending roller 64 rotates and comes into contact with the wire rod W, so that the wire rod W has a small habit, and when the wire rod W is cut, the end of the wire rod W is cut. The bobbin 33 is not separated.

The gripping device 37 has an annular receiving plate 65 fixedly mounted on the central shaft 31, a pressing plate 66 closely spaced from the receiving plate 65, and the pressing plate 66 close to the receiving plate 65. The proximity means 67 and the spacing means 68 for spacing the push plate 66 from the receiving plate 65.

The receiving plate 65 is the flange 3 of the bobbin 33.
6 is fixed to the annular main body 54 so as to face the push plate 6.
6 is slidably fitted on the annular body 54.

The proximity means 67 has a push plate 66 and a receiving plate 65.
And a guide pin 71 inserted into the collar portion 54a of the annular body 54 and the push plate 66. One end of the compression spring 70 has a collar portion 54a of the annular body 54. And the other end is the insertion hole 72 of the push plate 66.
It is decorated in.

The spacing means 68 is a collar portion 6 of the push plate 66.
6a for pulling 6a in the direction away from the receiving plate 65
And a gripping opening cylinder 74 for moving the pull tab 73 in the axial direction.
It is fixed in two places side by side on the circumference.

The chuck device 38 is arranged on the side of the flange 36 of the bobbin 33, and the chuck device main body 7 is provided.
5 is provided with a pair of left and right gripping pieces 76, 77, and one of the gripping pieces 76, 77 is fixed to the apparatus main body 75 at a position facing the gripping device 37, and the other gripping piece 76, 77 is fixed. The gripping piece 77 is movable left and right. A supporting rod 78 is attached to the other holding piece 77, and an air cylinder 79 for moving the supporting rod 78 to the left and right is fixed to the apparatus main body 75.

In the rotating device 39, a ring 81 is rotatably fitted on the outer peripheral portion of the winder main body 30.
The chuck device main body 75 is fixed to the main body via the L-shaped piece 82. A sprocket 83 is externally fitted and fixed to the ring 81, a motor 84 is provided on the winder main body 30, and a chain 86 is wound between the sprocket 85 of the motor 84 and the sprocket 83.

The chuck device 38 is at a standby position A apart from the wire W during winding of the wire, and when gripping the wire W after full winding, it is at a gripping position B moved by 45 degrees, and the starting end of the wire W is reached. When it is fixed, it is rotated so as to reach the fixed work position C which is moved in the opposite direction by 135 degrees.

Between the chuck device 38 and the bobbin 33,
A cutting device 90 for cutting the wire W is provided,
The wire W is cut when the chuck device 38 is moved to the position where the wire W is gripped by the rotating device 39.

The cutting device 90 is attached to a support arm 92 which is rotatably supported by a support shaft 91, and is separated from the wire W by a cutting posture positioned between the chuck device 38 and the bobbin 33 by a motor or the like. It can be switched to the standby position.

The sandwiching body 40 is the receiving plate 6 of the gripping device 37.
5 and the pressing plate 66, and as shown in FIG. 3, the first and second brackets 95 and 96 and the second bracket 96 are arranged to face each other with the receiving plate 65 and the pressing plate 66 interposed therebetween. A pin 97 for slidably supporting the wire rod W between the first bracket 95 and the first bracket 95.

Both brackets 95 and 96 are formed in a fan shape and are fixed to the receiving plate 65 or the pressing plate 66 by bolts.

The pin 97 is inserted into a hole 96a formed at the tip of the second bracket 96 outside the pressing plate 66, and one end of the pin 97 is loosely fitted to the support plate 98 and attached by a nut 99.

On the other end of the pin 97, the chamfered inclined surface 9 is formed.
7a is formed, a spring is installed in the hole 96a, and the pin 97
The other end of is urged toward the first bracket 95.

The pushing body 41 is composed of a crank-shaped rod attached to the moving gripping piece 77 of the chuck device 38, and is directed toward the center of the bobbin 33.

At the tip of the pressing body 41, as shown in FIG.
A triangular groove 100 is formed so as to fit in. Further, a chamfered inclined surface 41a is formed on one side of the tip, and when the inclined surface 41a of the pressing body 41 contacts the inclined surface 97a of the pin 97, as shown in FIG. It slides in a direction away from the bracket 95.

The work of fixing the starting end of the wire is performed by the sandwiching member 40.
The position sensor 10 detects the passage of the sandwiching body 40 due to the rotation of the bobbin 33, since it is stopped at a fixed position.
1a and 101b are attached to the winder main body 30, and the position sensor that detects the fixed position stop of the sandwiching body 40 is a pulley 58.
Installed on.

Then, in order to fix the starting end of the wire W,
A control device for driving and controlling the guide device 35, the drive device 34, the gripping device 37, the chuck device 38, and the rotating device 39 is provided.

A full winding signal for notifying that the bobbin 33 has been fully wound and a stop signal when the sandwiching body 40 has stopped at a fixed position are input to the control device, and a predetermined procedure based on these signals is inputted. Control each device according to the above.

Next, the procedure from the time when the winding of the wire W is completed and the fully wound bobbin 33 is replaced with an empty bobbin 33 to fix the starting end of the wire W until the winding is started will be described. .

As shown in FIG. 6, the starting end of the wire W drawn out from the flange 36 of the bobbin 33 is sandwiched between the receiving plate 65 and the pressing plate 66 of the grasping device 37 and grasped. . Then, the wire W is wound around the bobbin 33 according to the reciprocating movement of the guide device 35 in the axial direction due to the rotation of the bobbin 33. At this time, the check device 38
Is stopped at the standby position A in the closed state. During operation, as shown in FIG. 8, the pressing body 41 is located apart from the gripping device 37, and therefore does not interfere with the rotating sandwiching body 40.

When the wire W is fully wound on the bobbin 33, as shown in FIG.
As described above, the rotation of the bobbin 33 is decelerated by the full winding signal,
Based on the detection signal of the position sensor of the pulley 58, the sandwiching body 40 is stopped at a fixed position during the work of fixing the starting end of the wire.

At this time, the bending roller 64 is rotated to come into contact with the wire W to give a small habit, and
The guide roller 62a is moved in the direction of the winding main body 30 and stopped at a position facing the gripping device 37.

Then, the chuck device 38 is opened, the motor 84 of the rotating device 39 is driven, the chuck device 38 is rotated counterclockwise, and the chuck device 38 is stopped at the gripping position B. As shown in FIG. 9, the gripping pieces 76, 77 of the chuck device 38 are
When the wire W is caught by the cylinder 79, the cylinder 79 supports the rod 78.
Is shortened, and the gripping piece 77 grips the wire W while bringing it closer.

When the wire W is gripped by the chuck device 38, the cutter 90 is rotated as shown in FIG. 10, and the wire W is cut between the chuck device 38 and the bobbin 33.

Next, as shown in FIG. 2, when the cylinder 74 of the separating means 68 of the gripping device 37 is actuated and the pull tab 73 is moved to the cylinder side, the collar portion 66a of the push plate 66 is hooked, As shown in FIG. 11, the pushing plate 66 is pulled in a direction of separating from the receiving plate 65, and the wire W is released from the gripping device 37.

Then, one central shaft 32 is pulled out from the central hole 52 of the bobbin 33, and the fully wound bobbin 33 is removed.

Then, as shown in FIG. 12, an empty bobbin 33
The bobbin 33 is attached to the winder main body 30 by fitting with the central shafts 31 and 32. At this time, as shown in FIGS. 13 and 14, the chuck device 38 grips the starting end portion Wa of the wire W,
The gripping device 37 is stopped at a fixed position.

Next, as shown in FIGS.
When the chuck device 38 is rotated clockwise by 135 degrees by driving the motor 84, the wire W held by the chuck device 38 passes between the receiving plate 65 and the pressing plate 66, and is guided to the guide roller 62a. The wire W is stretched to the opposite side, and the starting end portion Wa of the wire W projects outside the gripping device 37.

Here, as shown in FIG. 18, when the cylinder 74 of the separating means 68 is extended and the engagement of the pull tab 73 with the pressing plate 66 is released, the pressing plate 66 is received by the compression spring 70 of the proximity means 67. The wire W is pushed in the direction of the plate 65, and the starting end of the wire W is sandwiched between the receiving plate 65 and the pressing plate 66 and grasped.

Then, when the chuck device 38 holding the starting end portion Wa of the wire W is opened, the pushing body 41 is located between the receiving plate 65 and the pushing plate 66 as shown in FIG.

Then, as shown in FIG. 20, the check device 38
When is rotated counterclockwise from the fixed working position C, the unconstrained starting end portion Wa fits into the groove 100 of the pressing body 41.

By rotating the check device 38, the pusher 41 is rotated.
When the pin reaches the pinch body 40, the inclined surface 41a of the pusher 41 abuts the inclined surface 97a of the pin 97, and the pin 97
Spread against the spring.

As the chucking device 38 moves, the wire W is bent from the end held by the gripping device 37 as shown in FIG. 21, and the first pin 9 is pushed by the pusher 41.
7 is pushed out and the wire W is sandwiched. Similarly, when the chuck devices 38 are sequentially sandwiched by the pins 97, the chuck device 38 stops when it has rotated to the standby position A, as shown in FIG. Then, the chuck device 38 is closed, and the pushing body 41 moves to a position where it does not interfere with the rotation of the bobbin 33 and the gripping device 37.

After that, the guide device 35 is moved to the bobbin side, and the gripping device 37 is rotated along with the rotation of the bobbin 33, and the wire W is pulled and wound around the bobbin 33.

In this way, when the wire rod W is wound on the bobbin 33, the starting end portion Wa of the wire rod W is clamped by the sandwiching member 40.
Since the bobbin 33 is pinched by the bobbin 33, the bobbin 33 rotates without protruding from the gripping device 37.

Therefore, it is possible to prevent the starting end portion Wa of the wire W from coming into contact with the wire W entering the bobbin 33,
Moreover, since the starting end portion Wa of the wire rod W does not project outward as the bobbin 33 rotates, there is no risk of contact with other devices or cutting, improving machine reliability and winding the wire rod. It does not interfere with the work and facilitates the work in the post process.

The present invention is not limited to the above embodiments, and it goes without saying that many modifications and changes can be made to the above embodiments within the scope of the present invention.

[0060]

As is apparent from the above description, according to the present invention, a gripping device for sandwiching and gripping the starting end of a wire,
A chuck device that grips the starting end of the wire and guides it to the gripping device,
And a gripping device provided with a sandwiching body for sandwiching a start end portion of a wire rod protruding from the gripping device in the gripping device, and the chucking device is provided with a rotating device for rotating the chuck device around a bobbin. Since the pressing body that pushes the starting end portion into the sandwiching body is provided, the starting end portion of the wire rod protruding from the gripping device can be sandwiched by pushing the starting end portion of the wire rod into the sandwiching body while pushing the wire rod by the pressing body.

Therefore, it is possible to prevent the starting end of the wire from coming into contact with the wire entering the bobbin, and the starting end of the wire does not protrude outward as the bobbin rotates, so that it contacts other devices. There is no danger of being cut or cut, the reliability of the machine is improved, it does not hinder the winding work of the wire rod, and the post-process can be easily performed, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a front view of a wire rod winding machine showing an embodiment of the present invention.

FIG. 2 is a sectional view of a wire winding machine.

FIG. 3 is a plan view of a grip device and a chuck device.

FIG. 4 is a side view of the tip portion of the pressing body.

FIG. 5 is a diagram showing a contact relationship between a pressing body and a sandwiching body.

FIG. 6 is a plan view of the wire winding machine when the wire winding is completed.

FIG. 7 is a front view of the same.

FIG. 8 is a view showing the position of the pressing body as well.

FIG. 9 is a plan view of the wire winding machine when gripping the wire.

FIG. 10 is a front view of the wire winding machine when cutting the wire.

FIG. 11 is a plan view of the wire winding machine when the fully wound bobbin is taken out.

FIG. 12 is a plan view of a wire rod winding machine when an empty bobbin is attached.

FIG. 13 is a diagram showing the position of the pressing body as well.

FIG. 14 is a front view of the wire winding machine.

FIG. 15 is a plan view of the wire winding machine when gripping the wire.

FIG. 16 is a side view of the same.

FIG. 17 is a front view of the same.

FIG. 18 is a side view of the wire winding machine when the chuck device is released.

FIG. 19 is a diagram showing the position of the pressing body in the same manner.

FIG. 20 is a front view of the wire winding machine.

FIG. 21 is a front view of the wire winding machine when the starting end of the wire is being pushed into the sandwich.

FIG. 22 is a front view of the wire rod winding machine when the starting end of the wire rod is fixed.

FIG. 23 is a cross-sectional view of a conventional wire winding machine.

[Explanation of symbols]

 30 Winding machine main body 31, 32 Center axis 33 Bobbin 35 Guide device 36 Flange 37 Grip device 38 Check device 39 Rotating device 40 Clamping body 41 Pushing body W Wire rod Wa starting end

Claims (2)

[Claims] 1. A drive device for rotationally driving a wire rod winding bobbin around a central axis, a guide device for axially reciprocating to guide the wire rod to the bobbin, and a bobbin flange mounted on the central shaft outside the flange. A wire rod winding machine including a gripping device that sandwiches and grips the starting end of a wire rod, a chucking device that grips the starting end of the wire rod and guides it to the gripping device, and a rotating device that orbits the chucking device around a bobbin. In the wire rod start end fixing device, the gripping device is provided with a sandwiching body for sandwiching the start end portion of the wire rod protruding from the gripping device among the gripped wire rods, and the chucking device pushes the start end portion of the wire rod into the sandwiching body. A wire rod leading end fixing device for a wire rod winding machine, wherein a pressing body is provided. 2. The wire rod starting end fixing device for a wire rod winding machine according to claim 1, wherein the chucking device grips the starting end of the wire rod, and the chucking device is circulated around the bobbin to pass the wire rod through the gripping device. The chuck device is circulated until the starting end of the wire rod projects from the gripping device, the gripping device grips the wire rod, the chucking device is released, and the pushing member pushes the wire rod while pushing the wire rod start end part into the sandwich body. A method of fixing the starting end of a wire, characterized by sandwiching the starting end of the wire.