JPS63153812A - Method and apparatus for aging capacitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a method and apparatus for aging a capacitor, and more particularly to a capacitor that has not been aged between a first conveyor and a second conveyor. The present invention relates to a method for aging a capacitor and a device for aging a capacitor in which the device is made smaller and simpler by allowing continuous delivery of devices and aging-treated capacitor devices at one location.

(B) Prior Art The manufacturing process of electrolytic capacitors includes aging processing of capacitor elements and various types of element inspections.

A conventional aging process or inspection method for such an electrolytic condenser is disclosed in, for example, Japanese Patent Publication No. 58-8574. In the conventional method described in this publication, capacitor elements are conveyed one by one on a first intake conveyor to a delivery position to a conyer of iI2 for an aging device, and there, a plurality of capacitor elements are transferred to a second conveyor. The capacitor elements are delivered in bulk onto a conveyor jig that is transferred by a conveyor, and while the capacitor elements are held by the conveyor jig, they are sent into a heating furnace for aging treatment, and once the aging treatment has been completed, they are transferred to the third take-out conveyor again. 5&C1 is in the process of handing it over and inspecting it.

However, conventional transfer methods, including those described in the above-mentioned publication, had problems with the transfer method of capacitor elements on the conveyor. The problem of not being able to collectively transfer electronic components from the conyer to the third conveyor at the same location, making the entire device complex and large, and the problem of the transfer operation taking a long time and making it impossible to shorten the manufacturing time per piece. There is.

Furthermore, as described in the above-mentioned publication, the heating furnace of the aging device is shaped like a rectangular box, and the entire jig is passed through the heating furnace along with a conveyor chain for transporting the 70 jig.
In most cases, not only the capacitor element but also the jig and conveyor chain were heated at the same time.

However, with such a conventional heating method using a heating furnace, jigs and conveyor chains that do not originally need to be heated are heated, wasting thermal energy. There is a problem in that doing this unnecessarily shortens the life of the jig. Furthermore, since both the jig and the conveyor chain are passed through the heating furnace, there is a problem that the heating furnace itself becomes large.

(c) Problems to be Solved by the Invention The problems to be solved by the present invention are that, in a capacitor aging method and apparatus, the third conveyor of the conventional apparatus as described above is omitted and the fourth conveyor is It is an object of the present invention to enable the introduction of a capacitor element into a second conveyor and the removal of a capacitor element from the second conveyor at one place, thereby achieving miniaturization and simplification of the apparatus.

2) Means for Solving the Problems In order to solve the above problems, the first invention of the present application is to move the capacitor elements to the second conveyor by means of a first conveyor that circulates.
At the delivery position, the capacitor elements on the first conveyor are transferred to a jig on the second conveyor, and the capacitor elements are intermittently transferred by the second conveyor. In the method for aging a capacitor, the jig for holding a plurality of capacitor elements is extended in a direction substantially perpendicular to the transport direction of the second conveyor. The transfer direction of the first conveyor at the delivery position is parallel to the elongation direction of the jig, and the non-aging capacitor elements are transferred from the first conveyor to the jig of the second conveyor at the delivery position. The second conveyor is moved intermittently to deliver a plurality of aged capacitor elements from another jig to the first conveyor all at once at the same position. There is.

The second invention of the subject has a first conveyor that transports capacitor elements in a fixed direction, and a plurality of jigs that collectively hold a plurality of capacitor elements sent by the first conveyor. a second conveyor that circulates and transports the jig along a certain route, and a heating furnace provided in the middle of the transfer route of the second conveyor, In an aging device for a capacitor that applies a voltage and is heated by the heating furnace, a chuck for gripping a pair of sword wires of a capacitor element is provided at a predetermined interval on the first conveyor, and the gripping surface of the chuck is set at a predetermined interval. The jig is arranged in a direction substantially perpendicular to the transfer direction of the first conveyor, and the jig is extended in a direction substantially perpendicular to the transfer direction of the second conveyor, and at a transfer position from the first conveyor to the second conveyor. The first and second conveyors are arranged so that the extending direction of the jig and the transporting direction of the first conveyor are substantially parallel.

(E) Effect In the above configuration, the capacitor element is held by the chuck of the first conveyor and sent to the delivery position.

When a predetermined number of capacitor elements are removed from the delivery position, the second capacitor element
A plurality of capacitor elements are delivered at once to a jig on a conveyor, and the capacitor elements are held by a jig. Due to the intermittent rotation of the second conveyor, the aged capacitor element held in another jig is sent to the delivery position and delivered to the already empty chuck of the first conveyor. While the unprocessed capacitor elements held in the jig are sequentially conveyed by the second conveyor, a voltage is applied to them, and they are heated and subjected to an aging treatment.

(f) Example Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a capacitor aging apparatus 1 according to the present embodiment includes a first conveyor 2, a second conveyor 4, a heating furnace 6 provided around the second conveyor, and a second conveyor 4. The power supply device 8 supplies power to the jigs of the conveyor, which are arranged as shown in FIGS. 1, 2, and 7.

In FIGS. 1 to 6, the first conveyor has a pair of sprockets 2 that rotate intermittently around a vertical axis of rotation.
1 and 22, a toothed belt 23 hung over the sprockets 21 and 22, and chucks 25 attached to the toothed belt at regular intervals. The toothed belt 23 acts as a carrier for the chuck 25.

In FIGS. 3 to 6, the chuck 25 includes a pair of L-shaped arms 26, 2 that are attached to the toothed belt 23 in parallel so as to protrude outside the circular movement path of the toothed belt 23.
6a, and a pair of holding members 27 and 28 attached to the tip of the arm. At the tips of the arms 26.26a there are convex portions 29.29 that protrude in directions facing each other.
a is formed. The tip of one of the protrusions 29a is arcuate. Each holding member 27 and 28 is made of an insulating material such as synthetic resin, and has an arm 26 on the back.
．． Recesses 31 and 31a are formed into which the projections 29 and 29a of 26a fit, respectively. The mutually facing gripping surfaces 33 and 34 of each retaining member 27 and 28 hold the protrusion 29° 29a of the arm 26.26a into the recess 31 and 34.
When the holding member is mounted on the arm so as to be received within the toothed belt 2, it is substantially perpendicular to the direction of movement of the toothed belt 23.

The gripping surface 34 of one of the holding members 28 is a slightly concave curved surface when viewed in the vertical direction in FIG. This is so that a pair of sword wires separated from each other can be gripped at any position on the gripping surface. Holding member 27
It is pressed against the holding member 28 by a spring 35.

The first conveyor 2 is configured such that the gripping surfaces 33 and 34 of the chuck 25 hold the root portion of the pair of sword wires ρ so that the capacitor element e is on the toothed belt side and the free end of the sword wire is on the outside. It is designed to hold and hold. Then, at position A in FIG. 1, capacitor elements are received one by one from the supply device a, and each pitch of the toothed belt 23 is set (the interval between adjacent chucks is one pitch).
It is sent to the delivery position B to the second conveyor by intermittent movement.

In addition, at the delivery position B, the toothed belt is used only in a section that spans at least a length L (L-p (n-1) when the pitch between chucks is p) corresponding to the number n of capacitor elements to be delivered at once. It's almost a straight line.

7, 8, and 9 to 16, the second conveyor 4 includes a pair of bearings 42 held in a frame 41, and a rotating shaft 43 rotatably supported by the bearings 42.
and a wheel-shaped rotating body 44 fixed to the rotating shaft 43 at a distance in the axial direction. The outer circumference of each rotating body has a first
As shown in FIG. 2, concave portions 45 and convex portions 46 are alternately formed in the shape of a gear. A pair of positioning pins 47 are attached to each convex portion 46 on the rotating body.

A gear 481 of a drive mechanism 48 is attached to the rotating body 44 at the right end of the rotating shaft 43 (in FIGS. 7 and 8), and this gear meshes with a gear 483 of a drive motor 482. The rotating shaft 43 and the rotating body 44 are driven by a drive motor 48
Rotated by 2.

The second conveyor 4 includes a plurality of jigs 50 attached to the outer periphery of the rotating body 44 at equal intervals. This jig 50 is
A holder 51 is formed with a pair of recesses 511 that are attached to each convex portion 46 of the rotating body 44 and engages with the positioning pin 47 for positioning, and a holder 51 is attached to the holder 51 on both sides of the convex portion 46. The holding plate 52 is made of an insulating material and extends between the pair of rotating bodies 44. As shown in FIG. 12, the holder 51 is assembled by placing the U-shaped portion 512 over the convex portion 46 of the rotary plate 44 and tightening the setscrew (
(not shown) and is attached to the rotating plate.

A pair of levers 531 are rotatably attached to each holder 51 by pins 532, with the holding plate 52 interposed therebetween. A spring holder support 533 extending parallel to the holding plate 52 is attached to the upper end (in FIG. 8) of the corresponding lever 531 attached to the pair of rotating bodies via the holder 51. Lever 531 and spring holder support 5
33 constitutes a chuck 53. Spring holder support 5
A spring holder 534 made of an insulating material is attached to the concave portion of 33 facing the holding plate 52 side. A plate spring 54 made of a conductive material and having a shape as shown in FIG. 16 is attached in a recess 535 at the center of the spring holder 534 with a protrusion 541 fitted into the recess 535. A plurality of leaf springs 54 are electrically connected to each other in a direction in which the spring holder support 533 extends and are spaced apart from each other so as not to come into contact with each other.

One side of each holding plate 52 (for example, a pair of holding plates 5 in FIG.
A single common electrode plate 52 extending over almost the entire length of the holding plate as shown in FIG. Furthermore, a plurality of separate electrode plates 522 are bonded to the other surface of the holding plate 52 at positions corresponding to the respective leaf springs 54. The end of the holding plate 52 (the 12th
A pair of terminals 523 and 524 are attached to the right end in the figure. The terminal 523 is connected to the electrode plate 521, and the terminal 524 is electrically connected to each electrode plate 522 via a capacitor. Retention.

Triangular convex portions 525 and concave portions 526 are provided at both ends of the plate 52.
is formed.

Vertical length of electrode plates 521 and 522 and leaf spring 5
4 has a length as shown in Fig. 15. That is, the electrode plate holds the pair of sword wires A on the holding plate 52.
When the capacitor element e is separated from the upper edge of the holding plate 52 and the Lee wire is held by the chuck 53, the sword polishing contacts the corresponding electrode plate 521 or 522 and one electrical The length is such that the upper end of the leaf spring 54 contacts the wire a and the lower end contacts the corresponding electrode plate to form another electrically conductive circuit.

A cam shaft 55 extending parallel to each holding plate is rotatably attached to the holder 51. A row 2537 that contacts the camshaft is attached to the lower end of each lever 531. A notch 551 is formed at a diametrically symmetrical position on the camshaft 55 at a position corresponding to the lever 531. A tension spring 5 is attached to the lower end of each pair of levers 531 that sandwich the holding plate 52.
6 is latched such that the upper ends of the pair of levers are open and thus the leaf spring 54 is biased away from the retaining plate 52.

Attached to the upper edge (in FIG. 11) of each adjacent spring holder support 533 is a seal member 57 extending the entire length of that spring holder support. The seal member is preferably made of cloth coated with metal foil to improve airtightness and provide heat resistance, but other materials may be used.

In the jig 50, the camshaft 55 is activated by an external actuating device 90 when the jig is at the capacitor element supply position.
The rotating shaft 91 is rotated by engaging with the end of the cam shaft 55 (FIG. 8), and the notch 551 comes to engage with the roller 537.

The leaf spring 54 then separates from the holding plate 52 as shown on the left side of FIG. 11, allowing the capacitor element to be supplied. When the camshaft 55 is rotated by 90 degrees by the actuating device 9 after the capacitor element is supplied, the distance between the lower ends of the pair of levers 531 is widened by the camshaft, so that the spring holder support 533 approaches the holding plate 52. , the blade spring 54 holds down the sword wire. This holds the capacitor element and
Electrical continuity is established in two paths between the sword wire and the electrode plate.

1 and 7 to 9, the heating furnace 6 includes a housing 61 that covers the outer periphery of the transfer path of the jig 50 for about 2700 degrees from position F to G in FIG. This housing 61 has a vertical cross section (a cross section taken along a plane parallel to the rotating shaft 43) as shown in the upper or lower part of FIG. Separated. A heat insulating material 62 is attached to the inner surface of the housing 61 to prevent heat from escaping to the outside.

The housing 61 is supported by the frame 41 via a disk-shaped attachment member 63 attached to the bearing 43 so as to be concentric with the rotating shaft.

One end edge of the housing 610 in the circumferential direction (position F in Figure 9)
A blower 71 that sends hot air into the housing 61 is attached to the housing 61 . The blower 71 is connected to the housing 61 and has a blower housing 72 defining a space 73 that communicates with the interior of the housing and extends parallel to the axis of rotation. A heat insulating material 74 is also pasted inside the blower housing 72. A cylindrical fan 75 of a known structure extending over substantially the entire length of the housing is rotatably mounted within the space 73. This fan 75 is rotated by a fan motor (not shown) provided at an end (left or right end in FIG. 1) of the blower housing 72.

A heater 76 is provided in the space 73 of the blower housing 71 adjacent to the fan 75 and extends along its entire length. A partition wall 65 is provided within the housing 61 and the blower housing 72 so as to be concentric with the housing 61 and extending over the entire length thereof. This partition wall 65 divides the inside of the housing 61 and the air blower housing 72 into two, an outgoing path 66 on the inside in the radial direction and a return path 67 on the outside. Therefore, the hot air sent by the fan 75 and heated by the heater 76 in the output lower 7 flows counterclockwise in FIG. There it now flows clockwise and returns into the blower housing 72.

The power supply device 8 is attached to a mounting plate 8 made of an insulating material attached to the rotating body 44 at the end of the rotating shaft 43 (the left end in FIG. 7).
1, and current collecting brushes 82 and 83 attached to a plate 81 on a circumference centered on the rotation center of the rotating shaft 43.

The number of current collecting brushes 82 and 83 is equal to the number of jigs attached to the rotating body 43, and each current collecting brush 82 is electrically connected to the terminal 523 of the corresponding jig 50, and each current collecting brush 83 is electrically connected to the terminal 523 of the corresponding jig 50. are the corresponding jigs 50
It is electrically connected to the terminal 524 of.

The power supply device is further mounted on a mounting member 6.3 for the housing 61 with a mounting plate 85 made of insulating material fixed adjacent to the plate 81 and a circular arrangement of current collecting brushes on the plate 85. A pair of i coupling wires 86 and 8 arranged on the same circumference as
7. The power supply lines 86 and 87 are connected to a power source (not shown) for a known aging device, so that power can be supplied to the electrode plates of each jig.

Next, the operation of the apparatus of the above embodiment will be explained.

At position A, the capacitor element e is supplied to the chuck 25 of the first conveyor 2 by the supply device a. The first conveyor transfers the capacitor elements intermittently every pitch in the direction of arrow It is fed across the holding plate (FIG. 6). At this time, as shown in FIG. 6, the holding plate 52 of the jig 50 of the second conveyor A is standing by facing the chuck 25 and parallel to the conveyor belt, and the chuck 53 is open.

When a predetermined number of capacitor elements are sent to the delivery position,
The camshaft 55 is rotated 90 degrees and the chuck 53 of the jig 50
is closed and the sword wire l is held by the holding plate 52 and the leaf spring 54. When the gripping of the Riet wire ρ is completed, the rotary plate 43 is intermittently rotated by one pitch (the angle between adjacent holding plates), and the capacitor element is held by the jig and moved downward as shown in FIG. 6, and is removed from the chuck 25. The batch delivery to the second conveyor is completed. When the next jig comes to the delivery position due to the intermittent rotation of the above-mentioned 1♂, the capacitor element e, which has been transferred and aged by the second conveyor, is inserted from the upper side of the chuck 25 so that the Riet wire ρ is connected to the pair of holding members. 27 and 28 to the state shown in FIG. 6, and when the rotating body 43 stops rotating intermittently, the camshaft 55 is rotated 90 degrees and the chuck 53 is opened. This completes the batch delivery of the plurality of capacitor elements from the second conveyor to the first conveyor.

The capacitor element transferred to the first conveyor is sent to the inspection position C by the intermittent feeding of the first conveyor, and is sent to the inspection device C.
They are inspected one by one or a plurality at once, and when they are sent to a take-out position, they are taken out by a take-out device d.

On the other hand, unaged capacitor elements are intermittently fed counterclockwise in FIG. 9 into the housing 61 of the heating furnace 6 by the intermittent rotation of the rotating shaft 43 of the second conveyor 4. Inside the housing 61 and the blower housing 71, hot air heated by the heater 76 is
It is circulated in the order of output lower 7 → inlet → housing end → return route → blower housing.

The capacitor element e held by the jig 50 moves counterclockwise in FIG. 9 together with the jig, and is heated by hot air while passing through the outward path 66. A predetermined voltage is then applied to the capacitor element by the power supply device 8 via the jig 50, and aging processing is performed.

Most of the hot air passing through the outgoing path 67 is prevented from flowing inward in the radial direction of the rotating body by the sealing member 57 installed between each jig, and a small amount of the hot air passing through the outgoing path 67 is prevented from flowing inward in the radial direction of the rotating body. It only leaks through gaps. Therefore, only the capacitor element is heated and heat consumption can be reduced.

The capacitor element sent to the delivery position B after the aging process is delivered from the second conveyor to the first conveyor as described above.

Although the above embodiment shows the case where the holder 51 of the jig 50 is attached to a rotating body, the holder is attached at predetermined intervals to an endless rail such as a chain or wire that circulates, and the jig is attached to an endless rail. It may also be conveyed by rails. In this case, if the capacitor element is to be heated at a position where the endless rail moves in a linear direction, the housing 61' may be made flat so as to surround the transfer path of the capacitor element θ, as shown in FIG.

Furthermore, as shown in FIG. 18, jigs and housings 50a, 50b, 50c, 61a, and 6tb were installed.

The aging processing time can be adjusted by arranging a plurality of arbitrary numbers in the axial direction like 61C.

In other words, assuming that the feed rate of one pitch of the first conveyor is constant, the time to send capacitor elements for n jigs to delivery position B is equal to the time for sending capacitor elements for one jig. Become. Therefore, the jig 61 is axially n
If they are lined up, it is necessary to make the feed operation interval of 1 pitch of the second conveyor equal to 04 for one jig. Therefore, the aging processing time also becomes longer.

(g) Effects As described above, according to the present invention, a plurality of capacitor elements can be delivered at one time from the first conveyor to the second conveyor, and also from the second conveyor to the first conveyor. Moreover, the delivery operation can be done quickly. Therefore, the structure of the aging device can also be simplified. Furthermore, since only the capacitor elements that require heating are heated, heat consumption is low (this results in energy savings compared to conventional equipment. Also, the jig is not heated unnecessarily). The life of the jig can be increased because only a few steps are required.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of an apparatus for carrying out the method for transferring capacitor elements in bulk according to the present invention, Fig. 2 is a view taken along the line ■-■ in Fig. 1, and Fig. 3 is a diagram of the first conveyor. 4 is a front view of the chuck, showing the holding member in cross section, FIG. 5 is a view taken along the line V-V in FIG. 4, and FIG. 6 is a view taken from the chuck. FIG. 2 is a diagram showing the delivery operation of the conveyor to the holder, FIG. 7 is an elevational sectional view of the second conveyor and heating furnace for the capacitor aging device according to the present invention, and FIG. 8 is a diagram showing the device of FIG. 7. 9 is a sectional view taken along the line D (-1K in FIG. 7), FIG. 10 is an enlarged front view with the central part of the jig omitted, and FIG. A view taken along XI-XI, Figure 12 shows how the jig holder is attached to the rotating body, and Figures 13 and 14 show the shape of the electrode plate attached to the insulating plate. FIG. 15 is a diagram showing the positional relationship between the IJhe line and the leaf spring with respect to the electrode plate, and FIG. 16 is a perspective view of the leaf spring.
FIG. 17 is a diagram showing a modification of the conveyor and housing, and FIG. 18 is a schematic sectional view showing a modification of the aging device. 1; Aging device 2: K 1 ノ: F y-
Near 23: Toothed belt 25: Chuck 4: Second conveyor 43: Rotating shaft 44: Rotating body 50: Jig 6: Heating furnace 61; No. 71: Blower

Claims (6)

[Claims] 1. The capacitor element is transferred to a delivery position to a second conveyor by a circulating first conveyor, the capacitor element on the first conveyor is delivered to a jig of the second conveyor at the delivery position, and the capacitor element is transferred to a jig of the second conveyor at the delivery position. In the method for aging a capacitor, the jig for holding a plurality of capacitor elements is moved to the second conveyor while heating the capacitor element and aging the capacitor element by applying a voltage. The first conveyor is arranged so as to extend in a direction substantially perpendicular to the transfer direction of the conveyor, and the transfer direction of the first conveyor at the delivery position is parallel to the extension direction of the jig, and aging processing is performed from the first conveyor at the delivery position. A plurality of capacitor elements that have not been aged are delivered to a second conveyor jig at once, and the second conveyor is moved intermittently to transfer a plurality of aged capacitor elements from another jig to the first jig at the same position. A method for aging capacitors that is characterized by transferring them in bulk to a conveyor. 2. 2. The capacitor aging method according to claim 1, wherein the transfer path of the second conveyor is a circle and the jig is moved along the circle. 3. Claim 1 or 2, characterized in that the capacitor element is held by a jig so that the capacitor element protrudes outside the transfer path of the jig, and only the capacitor element is heated. Capacitor aging method described in . 4. It has a first conveyor that transports capacitor elements in a certain direction, and a plurality of jigs that collectively hold a plurality of capacitor elements sent by the first conveyor, and the jigs are moved along a certain path. a second conveyor that circulates along the transfer path, and a heating furnace provided in the middle of the transfer route of the second conveyor, and a voltage is applied to the capacitor element via the jig and the heating furnace In the capacitor aging device, the first conveyor is provided with a chuck at a predetermined interval for gripping the pair of sword wires of the capacitor element, and the gripping surface of the chuck is aligned approximately with the transport direction of the first conveyor. at right angles, and the jig is arranged so as to extend in a direction substantially perpendicular to the transfer direction of the second conveyor, and at the transfer position from the first conveyor to the second conveyor, the jig is arranged so as to extend in a direction substantially perpendicular to the transfer direction of the second conveyor. A capacitor aging device characterized in that the first and second conveyors are arranged so that the conveyance direction of the first conveyor is substantially parallel to the first conveyor. 5. The first conveyor includes a rotating shaft and a rotating body attached to the rotating shaft, and the jig is provided on the outer periphery of the rotating body substantially parallel to the rotating shaft. A capacitor aging device according to scope 4. 6. The heating furnace has a housing that partially surrounds the outer periphery of the transfer path of the jig, and a seal member is attached to the jig to prevent hot air in the heating furnace from flowing into the rotating shaft side. A capacitor aging device according to claim 4 or 5, characterized in that: