JPS5919460B2 - Capacitor automatic winding machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automatic film condenser winding machine.

In particular, the present invention applies to the outer peripheral surface of a film capacitor (metalized film capacitor) in which an insulating mylar film (hereinafter simply referred to as a film) is wrapped many times around a winding core (this is referred to as a pre-wound film). An automatic capacitor winding machine that automatically manufactures a film capacitor by winding two conventional metallized films (metallized films) for positive and negative electrodes (hereinafter simply referred to as vapor-deposited films) many times. It is. In addition, the pre-rolled film condenser manufactured by the above-mentioned winding machine can undergo extremely smooth metal spraying for electrode soldering in the treatment process after winding, as detailed below. There is no possibility of a short circuit between the positive and negative electrodes due to metal spraying as seen in capacitors that do not have metal spraying. When filling holes to prevent metal powder from metal spraying from entering, there is no possibility that the electrode terminal in the center will be crushed by the cap and cause a short circuit. Hereinafter, the structure of the present invention will be described by way of example with reference to the drawings. FIG. 1 is a front view showing the main parts of the entire invention, and FIG. 2 is a cross-sectional explanatory view of the winding part in FIG. 1.

In these figures, numerals 1, 2, and 3 are winding cores that are mounted perpendicularly to the surface of a rotating disk 4 that rotates intermittently by an appropriate drive source, and that rotate and move together with the disk. Three winding cores with the same radius are provided at center angle intervals of 120 mm, and the tips of these winding cores are divided into two split pin shapes as shown in FIG. The winding core itself is rotated around the core axis by a suitable rotating device while protruding from and retracting from the front surface. 5 is position 11
This device is a film cutter device disposed on the frame body outside the line connecting the film presser roller 7 and the cutter 8, which are extended from the base 6 by the elasticity of a spring or the like. The device reciprocates toward a roller 9 provided at the center of the rotating disk 4.

10 is a metal vapor deposited film cutting device (hereinafter simply referred to as vapor deposited film cutting device) disposed on the frame body outside of the line connecting the two. However, there are also shafts 13 and 1 on the left and right sides of the same cutter.
4 is provided on the outer surface of both shafts, and a roller 15, 1 is provided at the tip.
Abutments 17 and 18 on which 6 is rotatably supported are inserted,
The support base has springs 19 attached to the outside of both shafts 13 and 14,
It constantly extends upward with an elasticity of 20.

The operation and effects of the present application will be described below. A refilm 23 is pulled out from a poppin-shaped film 22 which is rotatably inserted and supported on a shaft 21 fixed to the frame main body of the present application, and the winding core 1 is located at a position I protruding from the front surface of the rotating disk 4.
When the film cutter device 5 is driven, the film cutter device 5 moves toward the center of the rotary disk 4 and presses the presser roller 7 of the device. presses the film 23 against the roller 9 and cuts the film with the cutter 8 while tightening the film. Core shafts 2 and 3 located at position 1 between the two sides protrude from the front surface of the rotating disk 4. After cutting the film, the film cutter device 5 retreats to its original position, and then the winding core 1 rotates the required number of times in the direction of the arrow while holding the film 23 between the grooves 24 at its tip to wind the film. This film becomes the pre-wound film 34. Next, in this state, the disk 4 rotates together with the core shafts 1, 2, and 3 in the direction of the arrow 120 (see FIG. 4). Reference numerals 25 and 26 denote vapor-deposited film pop pins for the electrodes of a film capacitor which are pivotally supported on the frame body, and as shown in FIG. Of the two vapor-deposited films 25' and 26', one vapor-deposited film 25' is provided on the frame body, and is guided by a vapor-deposited film slider which moves back and forth toward the midpoint of position 1 of the rotating disk 4. The other vapor-deposited film 26' is placed horizontally along the upper surface of the piece 28, and the other vapor-deposited film 26' is placed along the lower surface of the vapor-deposited film sliding piece 28.Then, the vapor-deposited film cutting device 10 is moved vertically toward the center of the disk, and at the same time the vapor-deposited film cutting device 10 is moved vertically toward the center of the disc, and at the same time, By pushing up the vapor-deposited film 26' with the positioning roller 44, both the vapor-deposited films 25', 26' are sandwiched between the rollers 29, 30 provided on the rotary disk 4 and the rollers 15, 16 of the vapor-deposited film cutting device 10. However, at this time, the vapor deposited film 26' is kept bent in a U-shape along the lower surface of the vapor deposited film sliding piece.

Then, the cutter 12 advances through the vertical hole 27 of the vapor-deposited film sliding piece 28 upwards from the bottom, and the vapor-deposited film 25', 26'
cut. At this time, both cut ends 42, 43 of both vapor-deposited films 25', 26' are the vapor-deposited films 26'0) bent at the bottom as shown in the developed plan view and developed front view shown in FIGS. 6 and 7. However, it is cut in a state where it is longer than the other vapor-deposited films 25' (in the section indicated by 1'' in the figure). 6 and 7, the mylar film 31,311 is the base of the vapor deposited films 25' and 26', and 32
, 325 are conductive thin films for electrodes deposited on the Mylar film. In this way, since the electrode conductive thin film 32 and the electrode conductive thin film 3γ are separated by the area L set by the shifting piece 28, the electrodes are not short-circuited during metal spraying.
Next, a vapor deposited film winding pin (hereinafter simply referred to as winding pin) 33 protrudes below both vapor deposited films in the vicinity of the winding core 1 with the pre-wound film 34 at the position . The vapor-deposited films 25/, 26', whose cut ends are still held between the rollers 16 and 30, are pulled out from the rollers by two to three rotations along the outer periphery of the first-wound film 34 of the winding core 1. Wrap it around the outside. At this time, the film 23 is also wound at the same time. Next, the film cutter device 5 operates in the same manner as before to cut the film 23 at a point Q between the film 23 that communicates with the winding core 1 at the position I and the winding core 2 at the position I.
In this way, the vapor-deposited film 25/and the vapor-deposited film 26' which were cut earlier are rolled up simultaneously with the film 23. Thereafter, the winding pin 33 is pulled back to its original position, and the winding core 1 is then rotated according to the capacitance of the capacitor, so that both vapor-deposited films 25' and 26' are wound around the outer surface of the first winding film 34 of the winding core 1. A predetermined rotation is detected by a separately provided reading device (not shown), and the rotation of the winding core 1 is stopped. At the same time as the film is cut at the point Q mentioned above, the winding core 3 at the position I rotates in the same manner as described above to wind the first-wound film onto the winding core. Further, the required number of revolutions of the winding core for the pre-wound film at position 1 is smaller than the number of revolutions required for winding the vapor-deposited film onto the winding core at position . With this, the work of first winding the film onto the winding core at the position I and the winding work of the vapor deposited film at the position are completed. Then I
The winding core 3 with the first winding of the film at the position, and the winding core 1 with the vapor-deposited film wound at the position with the rotating disk 4 further rotated 120 times, and the empty winding core 2 was placed at the position I. The winding core 3 on which the film is first wound reaches the position , and the winding core 1 on which the vapor-deposited film is wound reaches the position .

The winding cores 2 and 3 at positions I are subjected to film tip winding and vapor deposited film winding operations in the same way as before, and the winding core 1 that has reached one position is shown in the partial explanatory diagram of FIG. As shown in the figure, a film 36 from a bobbin-shaped film 35
is guided by the film nipping lever 37, and the tip 38 of the film is wound around the cut ends of the two vapor-deposited films 25' and 26', and the film is wound around the outer surfaces of both vapor-deposited films for the required number of rotations. The wrapped film becomes a protective film 40 for the vapor-deposited film of the condenser. Then, the film clipping lever 37 returns to its original position, and the film is cut into cutters 39. Next, a comb-shaped hot trowel 41 presses against the protective film 40 and thermally welds it to prevent the film-like protective film 40 from unraveling. Visit 4
6 indicates a thermally welded point. Next, the hot trowel 41 is moved back to its original position, and the winding work of the film capacitor is completed.The winding core 1, which is in the position shown in FIG. The winding core 1 is pulled out from the cylindrical pre-wound film, and the completed capacitor 45 falls downward. With this, the -cycle in the automatic film capacitor winding machine of the present invention is completed. Thereafter, as mentioned above, each winding core is assembled with a rotating disk of 120
The film rotates step by step, and each winding core operates in the same way at positions 1, 2, and 3 of the rotating disc, which has an excellent effect of automatically winding the film capacitor continuously. There is no automatic capacitor winding machine, but this machine is used in the field of film capacitors and is very effective.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the main parts of the entire invention, Fig. 2 is a cross-sectional explanatory view of the winding part in Fig. 1, and Fig. 3 is a perspective view of the tip of the winding core used in the invention. 4 and 5 are explanatory diagrams of the state in the operating process of the present application, and Figs. 6 and 7 are plan views showing a developed cut end of the vapor-deposited film of the film capacitor in the operating process of the present application, respectively. FIG. 8 is an explanatory diagram showing a state in which a film protective film is attached in the final step of manufacturing a film capacitor in the present application. 1, 2, 3... Winding core, 4... Rotating disc, 5... Film cutter device, 6...
・Base, 7...Film holding roller, 8...
...Katsuta 1, 9... Mouthora 1, 10...
...Metalized film cutting device, 11...
Base, 12... Katsuta 1, 13, 14...
...Shaft, 15, 16...Roller 17, 18
......Abutment, 19,20...Spring, 21
... shaft, 22 ... bobbin-shaped film,
23...Film, 24...Groove, 25
, 26... Vapor deposited film bopin, 25', 26
'... Vapor deposited film, 27... Vertical hole,
28... Vapor deposited film sliding piece, 29,30.
...Roller, 31,3V...Mylar film, 32,32'...Conductive thin film for electrode, 3
3... Vapor deposited film winding pin, 34...
...Film with first winding, 35...Bobbin-shaped film, 36...Film, 37...Film pinching lever, 38...Film tip,
39...Katsuta one, 40...Protective film,
41...Hot trowel, 42, 43...Both cut ends, 44...Positioning roller, 45...
...Completed film capacitor, 46...
・Heat welding point.

Claims (1)

[Claims] 1 A disk that has a roller in the center and rotates in the same direction at 120 degrees, rotates and steps together with the disk, protrudes perpendicularly to the disk, and as it retracts, it rotates around the core axis. Three rotatable winding cores are placed on a disk with the same radius and a central angle of 120
It has three winding cores installed at positions I, II, and III at intervals of °, a cutter installed on the frame side to cut the film, and a film holding roller. A film cutter device that reciprocates a disc parallel to the center roller, and a film cutter device that is installed on the frame side and reciprocates perpendicularly to the disc toward the center below the line connecting positions II and III of the disc. A metal-deposited film cutting device provided on the frame side and equipped with a cutter and a vapor-deposited film holding roller that reciprocates in parallel with the disk toward the vapor-deposited film piece, and a metal-deposited film cutting device provided on the frame side that moves back and forth in parallel with the disk, and a metal-deposited film cutting device provided on the frame side that moves back and forth in parallel with the disk. A film clamping lever that guides the protective film toward the vicinity of the frame, a cutter and hot trowel that cuts the protective film, and one of the two vapor-deposited films provided on the frame side under the vapor-deposited film sliding piece. A positioning roller that bends upward from the side along the sliding piece, and one of the winding cores is in a position to guide the film from a film bobbin attached to a first-winding film support shaft provided on the frame side. In particular, another one of the winding cores is at a position that guides the deposited film from the deposited film bobbin for the film capacitor provided on the frame side and winds the deposited film; Another thing in mind is an automatic capacitor winding machine that is located on the frame side to guide a film for protecting the surface of the film capacitor after winding up the film capacitor.