JPH0638234U - Capacitor manufacturing equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] In the process of mounting the insulation material for the capacitor, the exterior material can be cut with high dimensional accuracy, and the cut edge is straight, and it has durability and is easy to maintain. The purpose is to obtain a good cutting device. A structure is provided in which a part of the cutter blade is cut into the insulating outer casing material of the capacitor, and the cutter blade is rotated while being eccentric with respect to the outer casing material to cut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an insulating sheathing material cutting device used in a process of cutting a continuously supplied insulating sheathing material to a required length for each capacitor when manufacturing a capacitor with an insulating coating. It is a thing. The cut insulating exterior material is usually put on an aluminum case of a capacitor, for example, an aluminum electrolytic capacitor, and is contracted by applying heat to be used in close contact with the aluminum case.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 4, a capacitor manufacturing apparatus in a cutting process of an insulating sheathing material has a cutter 2 linearly or circularly moving a cutter blade 1 in at least one side of an insulating sheathing material 3 in an arrow direction. It was cut by doing. 2 is a cutter blade holder, 4 is a guide rod, and 5 is a transport pin.

[0003]

[Problems to be solved by the device]

 When the insulating sheathing material 3 is cut in the apparatus shown in FIG. 4, the cutter blade 1 cuts into the insulating sheathing material 3 that is continuously supplied, so that a large force is applied to the cutter blade 1 and the sharpness is very sharp. become worse. In order to prevent this, it is necessary to make the thickness of the cutter blade 1 thin, but when it is made thin, the strength is insufficient and the life of the cutter blade 1 is shortened.

Further, since the force applied to the cutter blade 1 is large, the cutter blade 1 is bent, and the cut end of the cut insulating exterior material is not linear, so that the length of the exterior material varies. There was something to do. If the length of the outer packaging material varies, there may be a problem when the outer packaging material is covered with an aluminum electrolytic capacitor to cause heat shrinkage. In other words, if the outer packaging material is too long, the overall product length of the aluminum electrolytic capacitor will be out of the standard, and if it is too short, the insulation effect may be hindered.

[0005]

[Means for Solving the Problems]

 In a left-turn capacitor manufacturing device in which a cylindrical metal case of a capacitor is covered with an insulating exterior material and heat-shrinks, a cutter blade is provided on at least a part of the inner circumference of the cutter blade holder, and the insulating exterior is continuously supplied. The capacitor manufacturing apparatus is characterized in that the outer sheath material for insulation is cut into a predetermined length by rotating while eccentric to the outer periphery of the material.

[0006]

[Action]

 Since the capacitor manufacturing device according to the present invention is a mechanism for rotating the cutter blade while eccentric to the outer periphery of the insulating sheathing material and cutting it, it is necessary to cut the insulating sheathing material by the amount of bite of the cutter blade. It has a function that can be minimized. Therefore, the force applied to the cutter blade at the time of cutting the exterior material can be reduced, and the sharpness is greatly improved. Further, since the thickness of the cutter blade can be selected independently of the strength of the cutter, there is also an effect that the thickness of the blade can be made thinner than that of the conventional cutter, and the sharpness of the cutter can be improved also in this respect.

In addition, in the device according to the present invention, since the portion other than the cutter blade does not cut into the exterior material when cutting the exterior material, there is an effect that the thickness of the cutter can be made thicker than before in that portion. Therefore, the strength of the cutter can be improved, and the life of the cutter is extended, which improves the maintainability of the capacitor manufacturing device.

[0008]

【Example】

 FIG. 1 shows an embodiment of a cutting device for an insulating sheathing material according to the present invention. A cutter blade 1 is provided on the inner circumference of the cutter blade holder 2 and is fixed to the cutter blade holder 2. The center of the cutter blade 1 is represented by the symbol B in FIG. The horizontal distance between the center B of the cutter blade 1 and the center symbol A of the insulating sheathing material 3 is called the eccentricity amount. A guide rod 4 is inserted inside the external material 3, and the center thereof is represented by the symbol A in FIG. Reference numeral 5 is a pin for conveying the cut exterior material 3.

Now, a series of operations will be described. First, the cutter blade holder 2 is moved to a position where it does not contact the exterior material 3 in a direction in which the amount of eccentricity decreases. Next, the exterior material 3 is attached to the feed / conveyor pin 5 downward by a certain size by some method. For example, the exterior material 3 may be sandwiched by an air chuck, and may be mechanically driven using a cam or the like as it is to feed out a certain size. After feeding the exterior material 3, the cutter blade holder 2 returns to the position of the fixed amount of eccentricity, and rotates in the direction of the arrow around the center line (indicated by the symbol A) of the exterior material 3. At this time, the exterior material 3 is cut. The cut outer casing material 3 is conveyed to a step of mounting the outer casing material 3 on the aluminum electrolytic capacitor by heat contraction by the conveying pin 5.

That is, since the cutter blade 1 rotates with a certain amount of eccentricity with respect to the center line (symbol A) of the exterior material 3, the blade biting amount into the exterior material is suppressed to a certain amount, It has a structure that can cut the exterior material. Further, the cross section of the cutter blade 1 is composed of a blade portion 6 and an outer peripheral portion 7 as shown in FIG. 2, the blade portion 6 is thinner than a conventional cutter blade, and the outer peripheral portion 7 maintains strength. Thicker than conventional blades.

FIG. 3 shows another embodiment of the capacitor manufacturing apparatus according to the present invention. That is, as shown in FIG. 1, it is possible to obtain the same effect by using a cutter blade having the same shape as a conventional rectangular cutter blade without using a special circular cutter having blades all over the inner circumference.

[0012]

【effect】

 The capacitor manufacturing device according to the present invention achieves a high product yield in the production of aluminum electrolytic capacitors by achieving a high level of mutually contradictory performance such as improved cutter sharpness and longer life, which were difficult to achieve in the past. It is extremely effective in the industry because it can be improved, the machine operation rate can be improved, and the maintenance work such as cutter blade replacement work can be saved.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part of a capacitor manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view of an embodiment of a cutter blade according to the present invention.

FIG. 3 is a perspective view of an essential part of another embodiment of the capacitor manufacturing apparatus according to the present invention.

FIG. 4 is a perspective view of a main part of a conventional capacitor manufacturing apparatus.

[Explanation of symbols]

 1 Cutter Blade 2 Cutter Blade Holder 3 Exterior Material for Insulation 4 Guide Rod 5 Transport Pin 6 Blade 7 Periphery

Claims (1)

[Scope of utility model registration request] 1. In a capacitor manufacturing apparatus in which a cylindrical metal case of a capacitor is covered with an insulating exterior material and heat-shrinks, a cutter blade is provided on at least a part of an inner periphery of a cutter blade holder, and insulation is continuously supplied. A capacitor manufacturing apparatus characterized in that the insulating exterior material is cut into a predetermined length by rotating while eccentric to the outer periphery of the insulation exterior material.