JPS6211768B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an element taping apparatus as a preparatory step for applying metallization to the end face of a flat capacitor element.

In the case of a wound film capacitor, after the element is wound, metallicon is sprayed onto the end of the element to form an electrode part for attaching a lead wire. In order to streamline the metallicon process, the wound cylindrical capacitor element is flattened, and the entire outer periphery of the flattened capacitor element is taped to prevent metallicon from adhering.

The element taping apparatus of the present invention is for efficiently carrying out this metallization. Capacitor elements 1 taped using a conventional element taping device are connected either with the joints 2 between the elements being closer to one side as shown in Figure 9, or with the joints 3 between the elements being uneven as shown in Figure 10. 1 was connected randomly. When applying a method in which a group of these elements is wound into a reel and sprayed with metallicon while the reel is in use, the elements 1 cannot be arranged in an orderly manner, resulting in a poor space factor. As shown in FIG. 11, the taping device of the present invention aims to ensure that the joints 4 between the elements 1 are drawn out from the center in an orderly manner to obtain a well-balanced taping, so that when the elements are wound on a reel, they can be wound compactly. do. By making it compact, metallicon loss can be reduced and metallicon material can be saved.

To explain the taping device of the present invention based on the drawings, Fig. 1 is a front view of the present invention, in which 1 is a flattened capacitor element, and an automatic supply device (not shown) for the element 1 is used to feed the tape to the front side of the page. Supplied intermittently from Reference numeral 10 denotes a push rod for the element 1, and the tip thereof is machined into a dogleg shape 11 so that the element 1 can be pushed smoothly. The push rod 10 is adapted to move horizontally from side to side by means of a crank lever (not shown).

The element 1 is moved in the direction of the arrow (rightward) by a push rod 10, and guide plates for guiding the movement of the element 1 are provided on the upper and lower and left and right sides. 12 is a guide plate on the lower surface, 13 is a guide plate on the upper surface, 14 is a guide plate on the back side of the element 1, and 15 is a guide plate on the front side of the element 1.

FIG. 2 is a perspective view showing a state in which the upper element guide plate 20 is attached, and the guide plate 20 is attached to the groove of the guide plate holder 21 by a pin 23 so as to be swingable. The upper guide plate 13 of the element 1 is attached to the bottom surface of this holder 21.

Reference numeral 24 denotes a lower element guide plate, which, like the upper element guide plate 20, is attached to the groove 26 of the holder 25 via a pin 27.

30 is an upper tape, and 31 is a lower tape, and these tapes 30 and 31 are guided from a tape reel (not shown) through a guide roller 32 to an upper tape guide 33 and a lower tape guide 34 to a tape clamper. It is held at 35.

To explain the operation of the taping apparatus of the present invention, FIG. 1 shows that the element 1 is supplied to the position A. The element 1 may be supplied by any method, but as an example, it is supplied to the A position via a parts feeder and a chute connected to the parts feeder. FIG. 4, in which the push rod 10 starts to move in the direction of the arrow (rightward), shows a state in which the element 1 is pushed until it comes into contact with the tape clamper 35. At this time, the upper and lower element guide plates 20 and 24 are in contact with the upper and lower sides of the element 1, and the tape guide 3
There is a slight gap between 3 and 34. When the push rod 10 is pushed out further, the state shown in FIG. 5 is achieved. At this time, the tape clamper 35 is
The elements 1 move together while being pushed. FIG. 6 shows the push rod 10 in its most protruding state, and the tapes 30 and 31 are wound around the outer periphery of the element 1 in a state that conforms to the shape of the element. At this time, the upper and lower heat sealers 40, 41 are moving toward the center. In FIG. 9, the push rod 10 is retracted and the sealers 40, 41 are replaced by the tapes 30, 3.
1 is heat-sealed to form a joint portion 4 of the element 1. FIG. 8 shows a state in which the sealers 40, 41 begin to separate and the tape clamper 35 opens and is about to move in the direction of the arrow (to the left). After that, the sealers 40 and 41 are separated vertically, and the tape clamper 35 moves in the direction of the arrow (to the left) and closes the tip 36 at the forward position and clamps the joint 4 where the tapes 30 and 31 are sealed, as shown in FIG. Return to state. By repeating this process, a string of capacitors can be obtained at the time of contact. This can be wrapped around a reel and sprayed with metallicon while still in the roll for mass production.

When taping an element completed by the taping device of the present invention, as shown in Fig. 11, a spliced part drawn out accurately from the center of the element can be obtained, so that when this taping element is wound onto a reel, it is wound in an orderly manner. By storing it compactly, the efficiency of metallic spraying can be improved.

[Brief explanation of the drawing]

Fig. 1 is a front view of the present invention, Fig. 2 is a perspective view of the upper element guide plate, Fig. 3 is a side view showing the structure of the element guide, and Fig. 4 shows the element in contact with the tape clamper by a push rod. A front view showing a state in which the element is pushed out to a position and guided by an element guide, FIG. 5 is a front view showing a state in which the push rod is further advanced;
Figure 6 is a front view showing the push rod in its most advanced state;
Fig. 7 is a front view showing a state in which the tape joint between elements is sealed with a sealer, Fig. 8 is a front view showing a state in which the tape sealing is completed and the tape clamper is open, and Figs. 9 and 10. FIG. 11 is a front view of conventional element taping, and FIG. 11 is a front view of element taping of the present invention. In the drawing, 1 is a capacitor element, 4 is a taping joint of the element, 10 is a push rod, 20 is an upper element guide plate, 24 is a lower element guide plate, 3
3 is an upper tape guide, 34 is a lower tape guide, and 35 is a tape clamper.

Claims (1)

[Claims] 1. An extrusion rod for extruding a flattened capacitor element, an element guide plate attached above and below and swingably attached with a pin to guide the capacitor element to the tip extruded by the extrusion rod, and 1. A taping device for a capacitor element, comprising: a tape guide for guiding a tape to be wound around the outer periphery; a tape clamper for clamping a tape joint between elements; and a sealer for sealing the tape joint.