JP3284840B2 - Winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding machine, and more particularly, to a winding machine suitably applied to winding of a wire or a ribbon.

[0002]

2. Description of the Related Art A winding machine winds a strip such as a wire or a ribbon into a tubular body on a collet to form a package.
The quality of the rolled-up state of the package is related to the quality and appearance of the product. In addition, when the package is unwound in a post-process after winding, depending on the winding state of the package, inconveniences such as the strip being caught or excessive unwinding may occur, which also affects the quality of the subsequent product.

In general, in the winding machine, one of the factors which influence the winding state is a distance between the traverse mechanism and the winding surface. To maintain a good winding state,
It is necessary to always keep this distance at a predetermined value such as a set value or a distance suitable for the traverse speed. However, since the winding surface of the package gradually becomes thicker as the winding is performed, the distance between the traverse mechanism and the winding surface gradually shifts from the initially set distance. A conventional winding machine uses a distance sensor in order to keep the distance between the traverse mechanism and the winding surface constant. Conventionally, for example, a touch sensor or the like is used as a distance sensor used in a winder.

[0004]

In the conventional winding machine, a contact type distance sensor such as the above-mentioned touch sensor is used as a distance sensor for maintaining a constant distance between the traverse mechanism and the winding surface. Therefore, there is a problem that the quality of the wound package is reduced.

A contact type distance sensor such as a touch sensor is
Since the contact portion of the sensor directly contacts the winding surface of the package, the sensor may be damaged by contact friction between the winding surface and the contact portion. In particular, in the case of a material that is weak to damage such as glass fiber, the gloss of the winding surface is lost, and in some cases, a break occurs, making it difficult to maintain the quality of the product. Further, when winding glass fiber or the like, the distance sensor itself may malfunction due to application of water for preventing fluffing.

Accordingly, the present invention solves the above-mentioned problems of the conventional winding machine, and is suitable for the use environment of a winding machine for winding a strip or the like. It is an object of the present invention to provide a winder capable of detecting a distance and maintaining a predetermined distance.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a traverse mechanism and non-contact type distance detecting means for measuring a distance from a winding surface of a package, and responds to a detection signal of the non-contact type distance detecting means. A non-contact type proximity sensor, a movable body equipped with the non-contact type proximity sensor, and a non-contact type non-contact type proximity sensor. A reversible drive of the movable body according to the output of the proximity sensor, and a drive mechanism for maintaining a constant distance between the non-contact proximity sensor and the winding surface, and a traverse according to the drive amount of the drive mechanism. The object is achieved by adjusting the distance between the mechanism and the winding surface to keep it at a predetermined distance.

[0008] The traverse mechanism of the present invention is a mechanism normally included in the winder, and is a mechanism that moves along the axial direction of the collet of the winder and uniformly winds the strip on the collet.

The non-contact type distance detecting means of the present invention comprises a driving mechanism which enables a movable body having a non-contact type proximity sensor to be movable in a reversible direction and moves so that the output of the sensor is always constant. Thus, the distance between the non-contact type proximity sensor and the winding surface is maintained at a constant distance.

The distance between the traverse mechanism and the winding surface in the winding machine of the present invention is adjusted by, for example, moving the traverse mechanism in accordance with the driving amount of the driving mechanism provided in the non-contact type distance detecting means. Thus, the distance between the traverse mechanism and the winding surface is maintained at a predetermined distance.

In the winding machine, the non-contact sensor of the non-contact type distance detecting means is disposed so as to face the winding surface, and the non-contact sensor when the traverse mechanism and the winding surface are at a predetermined distance. Find output. The drive mechanism that moves the movable body having the non-contact sensor sets the direction of movement so that the output of the non-contact sensor becomes opposite to the increase or decrease of the output of the non-contact sensor. Further, the drive mechanism obtains a drive amount of the movable body, and moves the traverse mechanism according to the drive amount. Therefore, the amount of movement of the traverse mechanism corresponds to the displacement of the winding surface due to the thickening of the winding surface. By moving the traverse mechanism by this amount of movement, the distance between the traverse mechanism and the winding surface is initially set to a predetermined value. Can be held in distance.

According to an embodiment of the present invention, a driving mechanism includes a motor having a stator and a rotor rotating with respect to the stator, and a movable body having a ball screw formed thereon. A worm gear that is adapted to drive the motor in accordance with the output of the non-contact type proximity sensor, thereby driving the movable body in the reversible direction according to the output of the non-contact type proximity sensor. Servo mechanism that performs

According to another embodiment of the present invention, as a non-contact sensor, for example, an ultrasonic sensor, an optical sensor, a high-frequency electromagnetic induction sensor, a capacitance sensor, or the like is used as a material to be wound by a winding machine. Can be adopted according to the characteristics of the winder and the use environment of the winder.

The driving mechanism includes a motor having a stator and a rotor rotating with respect to the stator, and a movable body having a ball screw formed thereon, and a worm gear screwed with the ball screw is formed on the rotor side. Has,
The motor is driven in accordance with the output of the non-contact type proximity sensor, whereby the movable body can be driven in the reversible direction in accordance with the output of the non-contact type proximity sensor.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram for explaining the overall configuration of the winder according to the present invention.
In addition, the block diagram of FIG. 1 shows only a part necessary for the description of the configuration of the winder of the present invention, and omits other configurations of the winder. In FIG. 1, a strip 9 (dashed line in the figure) is reciprocated along the axial direction of the collet 7 by a traverse mechanism 2 attached to a swing arm 40, and is a cylinder such as a paper tube attached to the collet 7. It is wound on a body (not shown) and formed as a package. In the winder 1, a plurality of collets 7 are mounted on a turret 6 which rotates intermittently.

In the winder 1, the distance between the traverse mechanism 2 and the winding surface 8 on the outermost peripheral surface of the strip 9 on which the cylindrical body is wound on the collet 7 depends on the winding state of the winding surface. In order to maintain a constant quality, a constant distance is required. For this purpose, the traverse mechanism 2 adjusts the distance from the winding surface 8 by swinging the swing arm 40. The swing arm 40 is driven by a swing arm drive motor 41 that is driven and controlled by a motor driver 42. The swing arm 40, the swing arm drive motor 41, and the motor driver 42 constitute the swing mechanism 4.

The winding machine 1 of the present invention is provided with a non-contact type distance detecting means 3 in order to keep the distance between the winding surface 8 and the traverse mechanism 2 constant. The non-contact type distance detecting means 3 includes a non-contact type proximity sensor 30, a rod-shaped movable body 31 having the non-contact type proximity sensor 30 mounted at one end, and a driving mechanism 32 for driving the movable body 31 in a reversible direction. The non-contact type proximity sensor 30 detects the proximity state with the winding surface 8 in a non-contact manner, and the movable body 31 adjusts the distance between the non-contact type proximity sensor 30 and the winding surface 8. The driving mechanism 32 moves the movable body 31 by the motor driver 43 in the moving direction and the moving amount controlled according to the detection signal of the non-contact type proximity sensor 30. The motor driver 4 based on the detection signal of the non-contact type proximity sensor 30
The drive control of the motor driver 3 and the motor driver 42 is performed by the control device 5.

The non-contact type proximity sensor 30 includes:
For example, an ultrasonic sensor, an optical sensor, a high-frequency electromagnetic induction sensor, a capacitance sensor, or the like can be used.

With the above configuration, when the strip 9 is wound on the cylindrical body on the collet 7 and gradually wound up, the winding surface 8 is moved to the traverse mechanism 2 and the non-contact type proximity sensor 30.
Approaching. The non-contact type proximity sensor 30 detects the approach of the winding surface 8 as a detection signal and sends it to the control device 5.
The control device 5 controls the motor driver 43 based on the detection signal.
To drive the drive mechanism 32, and the non-contact type proximity sensor 30 moves the movable body 31 in a direction away from the winding surface 8. By repeating this operation, the distance between the winding surface 8 and the non-contact type proximity sensor 30 becomes
The set distance is always maintained.

The control device 5 includes a motor driver 43
And a control signal for controlling the drive mechanism 32,
A control signal for driving the swing arm drive motor 41 of the motor driver 42 is transmitted. This control signal is a signal corresponding to the amount of movement of the movable body 31 from the reference position by the drive mechanism 32 of the non-contact type distance detection means 3, whereby the same distance as the amount of movement of the movable body 31 from the reference position is obtained. The traverse mechanism 2 is moved in a direction away from the winding surface 8 by the distance.

As a result, the traverse mechanism 2 moves by a distance corresponding to the displacement of the winding surface 8 due to the thickening of the strip 9, and the distance between the traverse mechanism 2 and the winding surface 8 always becomes a predetermined distance. Will be retained. When the winding is completed, the turret 6 is rotated, and the next collet 7 is arranged at the winding position.

Next, a more detailed configuration and operation of the drive mechanism 32 of the non-contact type distance detecting means 3 will be described with reference to FIGS. 2, 3 and 4. FIG. FIG. 2 is a block diagram for explaining the configuration of the driving mechanism of the non-contact type distance detecting means, and FIG. 3 is a block diagram for explaining the operation of the driving mechanism of the non-contact type distance detecting means. FIG. 4 is a diagram illustrating a relationship between a detection signal intensity of a non-contact type proximity sensor of a non-contact type distance detection unit and a proximity distance.

In the driving mechanism 32 shown in FIG. 2, the movable body 31 is a rod-like body having a non-contact type proximity sensor 30 installed at the tip thereof and a ball screw 33 being system-sensored along the axial direction. Moves. The movable body 31 is movable in a reversible direction with respect to the axial direction by a motor mechanism 34. The motor mechanism 34 includes an annular stator 35 having a fixed position and a stator 35.
And an annular rotor 36 rotating with respect to
6 rotates with respect to the stator 35 in response to a drive signal from the motor driver 43. The movable body 31 penetrates and is mounted in the opening of the annular body of the rotor 36. A worm gear 37 is formed on the inner peripheral surface of the rotor 36 so as to screw with the ball screw 33 formed on the movable body 31. An elongated hole 38 is formed in the movable body 31 in the axial direction, and a pin 39 fixed to the stator is fitted into the elongated hole 38 to prevent the movable body 31 from rotating in the circumferential direction, so that the movable body 31 is moved only in the axial direction. To move.

Therefore, when the rotor 36 rotates with respect to the stator 35 in response to a drive signal from the motor driver 43, the worm gear 37 rotates with respect to the ball screw 33. Since the movable body 31 can move only in the axial direction by the engagement of the elongated hole 38 and the pin 39, the movable body 31 moves in the axial direction by the rotation of the worm gear 37. The drive control of the motor driver 43 is performed by the control device 5 which receives the detection signal of the non-contact type proximity sensor 30, whereby the distance between the non-contact type proximity sensor 30 and the detection target changes based on the detection signal. Will do.

Next, the operation of the driving mechanism will be described with reference to FIGS. The drive mechanism according to the embodiment of the present invention performs an operation in which the distance between the non-contact proximity sensor 30 and the detection target (the winding surface 8) is always constant.
FIG. 4 is an example of a detection signal of the non-contact type proximity sensor 30. In general, the signal intensity increases as the distance to the detection target decreases, and the signal intensity decreases as the distance increases.

FIG. 3A shows a state at the start of winding of the strip, in which the winding surface 8 and the non-contact type proximity sensor 30 are shown.
Is a set distance L. The winding surface 8 is shown in FIG.
The detection signal intensity of the non-contact type proximity sensor 30 in the state of (a) is indicated by a curve indicated by a in FIG. 4, and the detection signal intensity of the non-contact type proximity sensor 30 at a distance L from the reference position is P. I do.

FIG. 3B shows a state in which winding has progressed from the state at the start of winding of the strip shown in FIG. 3A, and the winding surface 8 has been widened by L1. At this time, when the non-contact type proximity sensor 30 does not move, the distance between the winding surface 8 and the non-contact type proximity sensor 30 is (L-L1), and the detection signal intensity at this time is a in FIG. Q by the curve shown in
(> P). The control device 5 receives the detection signal strength Q and supplies a control signal to the motor driver 43 in a direction in which the detection signal strength of the non-contact type proximity sensor 30 decreases. Thereby, the movable body 31 moves in a direction away from the winding surface 8.

Curves b in FIG. 3B and FIG. 4 show a state where the movable body 31 has moved by L1 from FIG. 3A, and the movement between the winding surface 8 and the non-contact type proximity sensor 30 is shown. The distance becomes L, and the detection signal intensity at this time becomes P from the curve shown by b in FIG. Non-contact type proximity sensor 3 at this time
The position of 0 is a position (L + L1) from the reference position.

FIG. 3 (c) shows a state in which the winding is further advanced and the winding surface 8 is thickened by L2. At this time, if the non-contact type proximity sensor 30 does not move, the distance between the winding surface 8 and the non-contact type proximity sensor 30 is (L-
(L2−L1)), and the detection signal intensity at this time becomes R (> P) according to the curve shown by b in FIG. The control device 5 receives the detection signal strength R and supplies a control signal to the motor driver 43 in a direction in which the detection signal strength of the non-contact type proximity sensor 30 decreases. Thereby, the movable body 31 moves in a direction further away from the winding surface 8. Therefore, by repeating the above operation, the non-contact type proximity sensor 30 can maintain the distance to the winding surface 8 at the set distance L.

Next, the operation of the embodiment of the present invention will be described with reference to FIG. 1, FIG. 5, and FIG. FIG. 1 shows a state where the winding of the strip 9 around the cylindrical body on the collet 7 is started. At this time, the non-contact type proximity sensor 30 and the traverse mechanism 2 are installed at positions separated by a predetermined distance from the winding surface 8. As the winding of the strip 9 progresses and becomes thicker, the distance between the winding surface 8 and the non-contact type proximity sensor 30 decreases. The non-contact type distance detecting means 3 is the same as that shown in FIGS.
The movable body 31 is moved by the operation described in the above, and the distance between the winding surface 8 and the non-contact type proximity sensor 30 is maintained at L.

Here, the control device 5 outputs a control signal (moving pulse) for driving the non-contact type proximity sensor 30 to the motor driver 43 and outputs a control signal for driving the swing arm 40 to the motor driver 42. Then, the distance between the traverse mechanism 2 and the winding surface 8 is maintained at a predetermined distance. The control device 5 controls the motor driver 4 to maintain the distance between the traverse mechanism 2 and the winding surface 8 at a predetermined distance.
The amount of movement of the non-contact type proximity sensor 30 is determined from the number of movement pulses output to 3 and the gear ratio in the drive mechanism, and a control signal corresponding to the amount of movement is output to the motor driver 42. The oscillating arm drive motor 41 includes a motor driver 4
The swing arm 40 is rotated in the direction of the arrow in FIG. Thereby, as shown in FIG. 5, the traverse mechanism 2 is maintained at a predetermined distance from the non-contact type proximity sensor 30.

When the winding of the strip 9 is completed, the turret 6 is rotated as shown in FIG. 6, and the next collet 7 is arranged at the winding position. In this case, the distance between the traverse mechanism 2 and the winding surface 8 is not less than a predetermined distance, and the distance between the non-contact proximity sensor 30 and the winding surface 8 is not less than the set distance. Therefore, the driving mechanism 32 of the non-contact type distance detecting means 3 moves the movable body 3 in the opposite direction to the above so that the distance between the non-contact type proximity sensor 30 and the winding surface 8 becomes the set distance.
1 to drive the non-contact type proximity sensor 30 to the winding surface 8.
To the side and drive so that the distance between them becomes the set distance. In addition, the traverse mechanism 2 uses the swing mechanism 4 to
The movable body 31 moves toward the winding surface 8 by a distance corresponding to the amount of movement of the movable body 31 by the drive mechanism 32. As a result, the distance between the traverse mechanism 2 and the winding surface 8 is set to a predetermined distance.

(Other Embodiments of the Present Invention) FIG. 7 is a diagram for explaining other embodiments of the present invention.
In this embodiment, the winding state of the winding surface is detected by arranging a plurality of non-contact distance detecting means in the axial direction of the collet. The winding state of the winding surface in the axial direction of the collet of the strip is shown in, for example, FIG.
As shown in (b), it may not be uniform. Then, by arranging a plurality of the non-contact type distance detecting means in the axial direction of the collet and detecting the distance from the winding surface, the winding state of the winding surface can be detected. In addition, by reflecting the detection result in the control of the traverse mechanism, the uniformity of the collet in the axial direction can be improved.

(Effects of the Embodiment of the Present Invention) In the embodiment of the present invention, the detection of the winding state of the strip is controlled such that the distance between the non-contact type proximity sensor and the winding surface is always a set distance. By doing so, the accuracy of detection of the winding state of the strip can be kept constant. Generally, since the detection signal of the non-contact proximity sensor has non-linearity, when the distance is detected by the detection signal of the fixed non-contact proximity sensor, the detection accuracy differs depending on the distance.
On the other hand, in the embodiment of the present invention, since the distance between the non-contact type proximity sensor and the winding surface is always controlled to the set distance, it is possible to prevent variation in detection accuracy according to the distance. Thus, the accuracy of detecting the winding state of the strip can be kept constant.

The drive mechanism according to the embodiment of the present invention includes a mechanism for performing linear movement by screwing a worm gear formed on the rotor side and a ball screw formed on the movable body side, and directly driving the worm gear by the rotor. Because of the mechanism, the sealing effect of the driving part can be improved. Therefore, even in an environment where there are many floating substances, such as the winding of the strip of the present invention, the influence of the floating substances on the driving portion can be reduced.

Further, by using a capacitance type sensor as the non-contact type proximity sensor, the control of the traverse mechanism can be performed even in an environment where there are many floating objects where ultrasonic waves or optical non-contact type proximity sensor cannot be used. It can be carried out.

[0037]

As described above, according to the present invention,
It is suitable for a use environment of a winder that winds a strip or the like, and can provide a winder that can detect a distance between a traverse mechanism and a winding surface in a non-contact manner and maintain a predetermined distance. .

[Brief description of the drawings]

FIG. 1 is a block diagram for explaining the overall configuration of a winder according to the present invention.

FIG. 2 is a block diagram for explaining a configuration of a driving mechanism of a non-contact type distance detecting unit of the present invention.

FIG. 3 is a block diagram for explaining an operation of a driving mechanism of the non-contact type distance detecting means of the present invention.

FIG. 4 is a diagram illustrating a relationship between a detection signal strength of a non-contact type proximity sensor of the non-contact type distance detection means of the present invention and a proximity distance.

FIG. 5 is a diagram for explaining the operation of the winder according to the present invention.

FIG. 6 is a diagram for explaining the operation of the winder according to the present invention.

FIG. 7 is a diagram for explaining another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Winding machine, 2 ... Traverse mechanism, 3 ... Non-contact type distance detecting means, 4 ... Swing mechanism, 5 ... Control device, 6 ... Turret, 7 ... Collet, 8 ... Winding surface, 9 ... Stripe, 30 ...
Non-contact type proximity sensor, 31: movable body, 32: drive mechanism,
33 ... ball screw, 34 ... motor mechanism, 35 ... stator, 36 ... rotor, 37 ... worm gear, 38 ... long hole, 39 ... pin, 40 ... swing arm, 41 ... swing arm drive motor, 42, 43 ... motor driver.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 54/02 B65H 54/30 D01H 1/36

Claims (1)

(57) [Claims] 1. A traverse mechanism, and non-contact distance detecting means for measuring a distance between a winding surface of a package and a traverse mechanism and a winding surface in response to a detection signal of the non-contact distance detecting means. A winder for adjusting a distance, wherein the distance detecting means reversibly moves a movable body according to an output of the non-contact proximity sensor, a movable body having the non-contact proximity sensor, and a non-contact proximity sensor. A driving mechanism for driving and maintaining a constant distance between the non-contact type proximity sensor and the winding surface, and adjusting a distance between the traverse mechanism and the winding surface in accordance with a driving amount of the driving mechanism, and A winder, characterized in that it is held at