JPS5814065B2 - Capacitor element manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for manufacturing a capacitor element formed by winding an electrode foil such as an aluminum foil and an insulating paper, that is, a separator. The present invention relates to a manufacturing device that automates capacitor element manufacturing by holding a capacitor element wound up by a machine, receiving it from a winding shaft, and supplying it to the next process in a constant posture.

When manufacturing an electrolytic capacitor, there is a capacitor element winding process in which a plurality of electrode foils with lead wires and separators are alternately stacked and wound to a certain length.

This winding process is performed using a capacitor element winding machine that inserts the tips of the electrode foil and separator into the grooves of the winding shaft or winding core and winds them around the winding core. The captured capacitor elements were simply ejected from the winding machine through a drop chute, or dropped directly into a storage box to accumulate a large number of them in one place, making it difficult to process the capacitor elements after that. When transporting capacitors to a process such as electrolyte impregnation or taping process where capacitor elements are pasted onto tape at equal intervals, they are transported in bulk, and then taken out one by one.

For this reason, with the conventional equipment mentioned above, it is not only difficult to automate the capacitor manufacturing process, but also the lead wires are distorted and entangled when capacitor elements are dropped or accumulated in one place. This has also caused problems in the automation of capacitor assembly or inspection processes.

Therefore, an object of the present invention is to provide a capacitor element manufacturing apparatus that eliminates the drawbacks of the conventional apparatuses described above by sending the manufactured capacitor element lead wires to the next process in a constant posture without distorting them. It is about providing.

A feature of the capacitor element manufacturing apparatus according to the present invention is that a plurality of winding shafts are arranged at equal intervals around the rotation center of the turret, and the turret is intermittently rotated to intermittently move the winding shafts while capacitors are The turret type winding machine that winds up the device, tapes the winding, and transfers the device has a mechanism that adjusts the direction of the winding shaft before transferring the capacitor device, and a mechanism that holds the wound capacitor device with the winding shaft. The method is to combine the lead wires with a mechanism for delivering them to a conveyor or the like, and to deliver them in a fixed posture with the same poles of the lead wires in a fixed direction.

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 1, 1 is a turret type winder, 2 and 3
4 is a winding tape mechanism, and 5 is a winding failure detection mechanism.

As shown in FIGS. 1 and 2, the turret winding machine 1 includes a rotating plate or turret 10 that can be intermittently rotated around a central axis O, and a support mechanism (not shown) provided at the rear of the turret 10. A plurality of support shafts 11 (in this embodiment, six or one ), a winding shaft or winding core 12 which is connected to the tip of each support shaft and can be retracted forward through a hole in the turret 10 by moving the support shaft 11 in the axial direction; 11
and a brake mechanism 14 that prevents rotation of the support shaft.

Since the support mechanism and the mechanism for intermittently rotating the turret are conventional, illustrations and detailed descriptions of their structures are omitted to facilitate explanation of the main parts of the present invention.

The drive mechanism i3 includes a pulse motor 130, a roller 131 fixed to the shaft of the pulse motor, and a roller 132 that is rotatable around the shaft of the pulse motor and springs in the direction of arrow Z.
arm 133, which is always biased by arm 1
33 and a rubber roller 134 rotatably attached to the roller 131 and in frictional contact with the roller 131.

The drive mechanism is disposed near the movement path of the support shaft 11 at the positions where the support shaft needs to be rotated, that is, the first winding position A, the second winding position B, and the winding core direction regulation position D. When in position, the roller 15 fixed to the spindle and having a knurled outer periphery comes into frictional contact with the rubber roller 134, so that the spindle 11 and the winding core 12 are rotated by the pulse motor 130.

When the support shaft 11 moves intermittently around the central axis O due to the intermittent rotation of the turret in the direction of the arrow X, the roller 15 pushes aside the rubber roller 134 and the arm 133 and advances in the direction of the arrow Y.

When the roller 15 passes, the rubber roller 134 comes out of contact with the roller.The arm 133 rotates in the direction of arrow Z until it comes into contact with the stopper 135, but when the next support shaft arrives at a predetermined position, it is fixed to that support shaft. Upon contact with the shedding roller 15, the arm leaves the stopper and is in the position shown in FIG.

In this way, at positions A, B, and D, the drive mechanism 13 rotates the spindle and the winding core.

The brake mechanism 14 includes an L-shaped lever 140 rotatably attached to the support mechanism for the spindle, and a lever 140.
The lever 140 is biased so that the friction shoe 141 and the friction shoe engage with the roller 141, which is fixed to the spindle 11 and frictionally engages with the rolled outer periphery of the roller 15 fixed to the support shaft 11. and a release lever 143 which is provided at positions A, B and D similarly to the drive mechanism and moves the member 140, and before rotating the support shaft 11, the release lever 143 is moved in the direction of the arrow. By moving the lever 140 in the direction W, the lever 140 is rotated in the direction indicated by the arrow ■, thereby releasing the brake.

The cutter 2 uses a blade 20 to cut one electrode foil f1, and the cutter 3 uses a blade 30 to cut the curved electrode foil f1 between positions A and B.
2 and separators S1 and S2 are cut together.

The stop tape mechanism 4 is disposed at position B, and wraps the stop tape around the capacitor element that has been wound at that position.

Further, the winding failure detection mechanism 5 is arranged at position D,
It is electrically detected that the detection lever 50 is operated due to a winding failure of the element.

It should be noted that the above-mentioned cutter, winding taping mechanism, and winding failure detection mechanism have the same structure as the conventional structure, so a detailed explanation of these structures will be omitted.

In addition to the above configuration, the capacitor element manufacturing apparatus according to the present invention further includes a winding core direction regulating mechanism 6 for regulating the grooves of the winding core in a fixed direction, and an element delivery mechanism 7 for delivering the element from the winding core.

The winding shaft or core direction regulating mechanism 6 is fixed to each support shaft 11 and has a recess 61 formed in a fixed direction with respect to a display member or groove that indicates the direction of the groove 16 formed at the tip of the winding core. a temporary cam 60, a stop lever 62 which is disposed in a position that can be engaged with the temporary cam 60 at position D and is biased by a spring 64 so that its tip 63 is engaged with the cam plate; -62 is provided with a cylinder "65" that presses the end of the cylinder to separate the tip from the cam plate.

The winding core direction regulating mechanism 6 detects a winding failure of the winding shaft, that is, the element wound around the winding core. There is.

Therefore, the support shaft 11 is freely rotated by the drive mechanism, and it becomes possible to detect a winding failure of the element.

When the detection of a winding failure is completed, the piston rod of the cylinder 65 is retracted, the tip 63 of the stopper lever 62 engages with the cam 60, and when it enters the recess 61, the rotation of the spindle is stopped.

For this reason, the rubber roller 134 temporarily rotates idly, but the pulse motor 130 immediately stops in response to a command from the control circuit.

Therefore, when direction adjustment is completed at position D, all the grooves 16 of the winding core 12 are adjusted in a fixed direction (in this embodiment, in the horizontal direction).

After the direction of the winding core is regulated, the spindle 11 is held fixed by the brake mechanism 14, and even if the spindle, the winding core, etc. are intermittently moved from position D to position A due to the intermittent rotation of the tongue, the winding will continue. The cores arrive at the above positions one after another without rotating with respect to the turret.

Therefore, if the winding core 12 is stopped at position D so that the groove 16 becomes horizontal and fixed by the brake mechanism, the groove 16 of the winding core 12 will be located at the position where the capacitor element is taken out, as shown in FIG. 60 with respect to the horizontal line L-L at E
° In the tilted state and at position A, the horizontal line L-L
It can be made parallel to (i.e. horizontally).

The element delivery mechanism 7 is provided in front of the turret 10 at position E, and as shown in FIG. A first chuck 70 that clamps the wires l1 and l2, and a second chuck 71 that clamps the lead wire of the element gripped by the first chuck and places it on the conveyor.
It has

The first chuck 70 includes a main body 72 that can be rotated horizontally by about 90 degrees by an upright shaft, a pair of claws 73 attached to the main body 72 so as to be openable and closable, and a cylinder 7 that opens and closes the claws 73.
4.

The second chuck 71 includes a main body 75 that can be rotated about 90 degrees around a horizontal axis, a pair of claws 76 that are attached to the main body 75 so as to be able to open and close, and a cylinder 77 that allows the claws 76 to open and close. have.

When the element take-out mechanism 7 reaches position E with the pair of lead wires l1 and l2 aligned in the vertical direction due to the action of the winding core direction regulating mechanism, the lead wires are removed by the claws 73 of the first chuck 70. to hold.

When the lead wire is clamped, the winding core 12 is pulled into the rear side of the turret 10, and the stand rotates about 90 degrees in the direction of arrow U to move the element to H.
-Move to H direction.

When this element is then clamped by the claws 76 of the second chuck, the main body 75 is opened 90 degrees in the direction of arrow T, and the element e is
Point in the I direction.

At this time, the lead wires l1 and l2 extend downward, and the grooves 81 of the jig 80 attached to the chain of the conveyor 8
It can be received within.

Therefore, when the claw 76 is opened, the element e is on the upper side of the ring, and for reasons described later, one of the lead wires l2 (
Or 21) is always kept inside the groove 81 and is received on the conveyor and sent to the next process.

When the element whose winding failure was detected at position D arrives at position E, the lead wire of the element is connected to the chuck because no operation signal is sent to the first chuck 70 from the control device (not shown). Not clamped by 70.

Therefore, when the winding core is retracted, it is dropped without being transferred to the chuck 70.

To facilitate the dropping of this element, the lead wires are preferably aligned one above the other.

Next, the entire operation of the manufacturing apparatus according to the present invention will be explained.

Since the operations of the six winding cores are exactly the same, only one of them will be explained.

The winding core 12 is moved to the first winding position A by the intermittent rotation of the turret.
When arriving at position D, the direction is still regulated, so the direction of the groove 16 in the winding core is horizontal as in position D (positions A and D are (because they are opposite with respect to the center of).

In addition, when the direction adjustment of the winding core is carried out at one place as in this embodiment, the direction adjustment at position D must be carried out with consideration in advance so that it will be easier to insert the electrode foil into the groove 16 at position A. There is.

When the winding core arrives at position A, the ends of the electrode foils fl+f2 and the separators S1 and S2, which are overlapped with each other, are inserted for a predetermined length, and winding by the winding core begins.

When the electrode foil, etc. is wound up to a predetermined length, the core stops rotating.
The cutter 2 operates to cut only the electrode foil f1.

After the cutting of the electrode foil f1 is completed, the winding core rotates again at the position A and further winds up the cut electrode foil f1, the uncut electrode foil f2, and the separators S1 and S2 for a predetermined length. Stop.

When the winding core stops, the turret 10 rotates 1/6, or 6
Intermittently rotates in a 0° counterclockwise direction, and the winding core that is at position A is at position B, and electrode foil f2 and separators S1 and S
2 by the amount of movement of the winding core, and the winding core that was at position F becomes the new position A.

Incidentally, the winding core that is newly located at position A is retracted to the back of the turret 10 so as not to damage the drawer of the electrode foil and the like.

After the rotation of the turret has stopped, the winding core that has come to position A comes forward and receives the electrode foil and separator in the groove, and the cutter 3 is activated to remove the electrode foil f2 and the separator S, which have been pulled out. Cut S2.

Thereafter, the winding core at position B rotates to wind up the remaining portion, and then a winding tape is applied by the winding tape mechanism 4 to the outer periphery of the element formed by winding.

When the element to which the winding tape is pasted arrives at position D due to the intermittent rotation of the turret 10 (position C is the play position), the winding core rotates and the winding failure detecting mechanism 5 operates to check whether the winding is successful or not. Then, the winding core direction regulating mechanism 6 operates to stop the spindle and the winding core with the stopper lever 62 so that the grooves are oriented in a certain direction (horizontal direction in this embodiment), and the brake mechanism stops Lock the winding core etc. so that it does not move.

After completing the direction adjustment of the winding core, the tongue rotates intermittently to position E, and the groove 16 of the winding core is aligned with the horizontal line L-L as described above.
It is tilted at an angle of 60 degrees.

Therefore, as shown in FIG. (Details of this winding method can be found in this book.) (See Applicant's Patent Application No. 119389 of 1977), and at position E the leads l, . The alignment direction of l2 (straight line M-M) is the vertical direction.

When the elements arrive at position E, those with good winding are delivered to the conveyor 8 by the delivery mechanism 7, and those with poor winding are dropped.

As is clear from the above explanation, if the manufacturing apparatus of the present invention is used, the lead wires can always be aligned in a certain direction and fed one by one to the next process, which is extremely useful for automating the assembly of capacitors. be.

As a mechanism for regulating the direction of the winding core, as shown in FIG. 4, the pulse motor may be stopped by electrically detecting the display member, that is, the protrusion 61 of the cam 60.

[Brief explanation of the drawing]

FIG. 1 is a diagram schematically showing the front of the turret of the capacitor element manufacturing apparatus according to the present invention, and FIG. 2 is a perspective view showing the support shaft, drive mechanism, brake mechanism, and winding core direction regulating mechanism of the capacitor element manufacturing apparatus according to the present invention. 3 is a perspective view of the delivery mechanism, FIG. 4 is a diagram showing a modification of the winding core direction regulating mechanism, and FIG. 5 is a diagram showing the alignment direction of the lead wires inserted into the grooves of the winding core.
FIG. 6 is a diagram showing changes in the alignment direction of the grooves and lead wires due to movement of the winding core. 1: Capacitor element winding machine, 10: Turret, 11 Two supporting shafts, 12: Winding core, 13: Drive mechanism, 14: Brake mechanism, 15: Roller, 16: Groove, 2, 3: Cutter, 6: Winding core Direction adjustment mechanism, 60: cam, 61: recess, 62: stopper lever, 7: delivery mechanism, 70, 71: chuck.

Claims (1)

[Claims] 1 A plurality of winding shafts are rotatably arranged at equal intervals around the rotation center of the turret, and the turret is intermittently rotated to move the winding shaft from the winding position to the take-out position intermittently around the rotation center. In a capacitor element manufacturing apparatus that winds up a capacitor element by selectively rotating the winding shaft while moving the winding shaft, a capacitor element is provided corresponding to each of the winding shafts and is interlocked with the winding shaft. a brake mechanism that engages with the rolled roller to prevent rotation of the winding shaft; and a brake mechanism that is provided at a position where the winding shaft is intermittently stopped and causes the winding shaft to rotate. a drive mechanism that rotates the winding shaft by engaging with the winding shaft; a display member that is linked to the winding shaft and displays the direction of the groove of the winding shaft; and a display member that cooperates with the display member to display the direction of the groove. a winding shaft direction regulating mechanism having a device that detects the winding shaft and stops the winding shaft so that the groove is oriented in a fixed direction with respect to the turret; 1. An apparatus for manufacturing a capacitor element, comprising: a chuck capable of gripping the lead wire of the capacitor element and then transferring the capacitor element to a position in a pond.