JPS6336647Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a capping device that press-fits a cap and an element such as an insulator constituting a resistor, a capacitor, etc.

Recently, so-called leadless resistors have been put into practical use.
This resistor tends to be miniaturized. Particularly in the case of such ultra-small resistors, high precision is required for press-fitting the insulator element and the cap.

For conventional capping devices of this type,
For example, as is clear from Utility Model Publication No. 55-6094, elements and caps are supplied to the element groove in the center of the press-fit rotor and the cap grooves on both sides, respectively, and the rotation of the press-fit rotor and the pin rotors on both sides is effected from these feeding positions. A pressing device is provided on a support base that pivotally supports the press-fit rotor and the pin rotor on the downstream side of the direction, and the press-fit pin that is slidably supported on the pin rotor is pressed by the pressing device against the elasticity of the compression spring through the sphere, By advancing the press-fitting pin, both caps are press-fitted onto both sides of the element at once. However, it is difficult to supply the element so that its center coincides with the center of the element groove. If the element is supplied shifted left and right with respect to the element groove, it will not be possible to support the element when trying to press fit the caps on both sides into both sides of the element at once as described above, and the axis of the element and cap will be It is difficult to match the elements r ₁ as shown in Figure 1A and B.
A part of the cap _R2 came into contact with the cap, and it was press-fitted part way in a diagonally floating state, resulting in a defective product. In addition, there is a risk that the element may be pushed diagonally by the cap and pop out of the element groove, making it impossible to perform press-fitting work.If only the cap is placed in the product receiving box, it must be sorted out. Poor efficiency. Further, if the element is pressed from above to prevent it from popping out, the element may be damaged, resulting in a defective product.

The purpose of this invention is to be able to assemble high-precision and good products by firmly press-fitting the cap into the element without damaging the element, and to prevent the element from popping out so that only the cap is placed in the product receiving box, etc. It is an object of the present invention to provide a resistor capping device that can prevent resistors from being thrown in, eliminate the need for sorting work, and improve work efficiency.

In order to achieve the above object, the present invention includes a support base, a support base rotatably supported by a shaft, and a plurality of central element grooves and cap grooves on both sides arranged at approximately equal intervals on the outer periphery in parallel with the axis. The assembled press-fit rotor, a pin rotor supported coaxially with the press-fit rotor on both sides of the press-fit rotor, support holes formed in the pin rotor to face each groove of the press-fit rotor, and slides in each support hole. a press-fit pin that is supported so that the press-fit pins can be supported, an elastic body that urges each press-fit pin backward, a sphere inserted into a support hole on the rear side of each press-fit pin, and a spherical body that is sequentially shifted in phase in the rotational direction of the press-fit rotor. an element feeder that supplies the element to the element groove, a first cap feeder that supplies the cap to the cap groove on one side, and a second cap that supplies the cap to the cap groove on the other side; The supply device, the element supply device, the first cap supply device, and the second cap supply device are provided on a support stand at positions shifted in phase from each other in the rotational direction of the press-fit rotor and the pin rotor, and press the sphere. The invention is characterized by being comprised of a pressing device that does.

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings (left and right symmetrical members will be described with the same reference numerals). As shown in Figures 3 and 4, the base 1
A support stand 2 is provided above with a space therebetween. A rotary shaft 3 is rotatably supported on these supports 2, and a press-fitted rotor 4 at the center and a pair of pin rotors 5 sandwiching this rotor from both sides are fitted to the rotary shaft 3 inside the support 2. and is fixed by a key 6 so as to be able to rotate together with the rotating shaft 3.
The rotating shaft 3 is connected to a drive motor (not shown),
By driving this motor, the rotating shaft 3, press-fit rotor 4, and pin rotor 5 are rotated together. On the outer periphery of the press-fit rotor 4, there are grooves 7 for the element in the center and grooves 8 for the caps on both sides at approximately equal intervals (16 equal parts in the example shown).
are formed in a line in the axial direction. As shown in FIG. 5, the element groove 7 is formed to be shorter than the element r ₁ made of a rod-shaped insulator, and circumferential grooves 9 are formed on both sides of the element groove 7 to serve as a cap when the cap r ₂ is press-fitted. It serves as a relief for the tubular part of _r2 .

A supply rotor 11 of the element supply device is rotatably supported by a shaft 12 on a support base 2 diagonally above the press-fit rotor 4 . This supply rotor 11
A plurality of element grooves 13 are formed at approximately equal intervals on the outer periphery. This supply rotor 11 is rotated in the opposite direction at the same circumferential speed as the press-fitting rotor 11, so that the element grooves 13 and 7 can be brought into alignment sequentially. At the top of the supply rotor 11 is a chute 1 for supplying elements.
4, and the upper end of this element supply chute 14 is connected to an element parts feeder (not shown). The element _r1 is then supplied from the parts feeder to the element groove 7 of the press-fit rotor 4 via the element supply chute 14 and the element groove 13 of the supply rotor 11. At this time, the element _r1 in the element groove 13 is guided to the lower side by the guide member 10 so as not to fall. A first cap supplying chute 15 and a second caps supplying chute 16 are located above the cap groove 8 of the press-fit rotor 5, sequentially shifted in phase from this element supply position to the downstream side in the rotational direction of the press-fit rotor 4 and pin rotor 5. are provided, and the upper end of each chute 16 is connected to a cap parts feeder (not shown). The cap _R2 is then transferred from the parts feeder to the press-fit rotor 4 via the first cap supply chute 15 and the second cap supply chute 16.
The cap grooves 8 on both sides of the cap are sequentially supplied out of phase.

As is clear from FIGS. 3 and 5, stepped support holes 17 are formed in the pin rotor 5 so as to coaxially oppose each cap groove 8 of the press-fit rotor 4, and a press-fit pin is inserted into each support hole 17. 18 is slidably supported so that it can move in and out of the cap groove 8. Each press-fitting pin 18 is always biased rearward by a compression spring 20 inserted between a collar 18a at its rear end and a stepped portion of the support hole 17. A steel sphere 21 is inserted into each support hole 17 on the rear side of the press-fit pin 18 , and each sphere 21 has a press-fit pin 18 connected to a compression spring 20 .
Approximately half of the pin rotor 5 is inserted into the annular groove 22 formed in the support base 2 while being biased backward by the elasticity of the pin rotor 5 (note that the pin rotor 5 is slightly spaced apart from the support base 2,
At least half of each sphere 21 may be supported within the support hole 17, and the remaining half may protrude between the pin rotor 5 and the support base 2. ).

Holes 23 are formed in both support stands 2 at positions slightly shifted downstream in the rotation direction of the press-fit rotor 4 and pin rotor 5 from the position where the element r ₁ is supplied by the supply rotor 11, and each hole 23 rotates. The grooves 7 and 8 of the press-fit rotor 4 and the pin rotor 5 are arranged in line with each other. Each hole 23 is provided with a pressing device 24 . As an example, a female thread is formed inside the rear part of the hole 23, and a male thread 25 for adjustment is screwed into this female thread. A stopper pin 26 and a steel ball 27 are inserted inside the male screw 25, and approximately half of the ball 27 protrudes into the annular groove 22 (note that the pin rotor 5
When the pin rotor is placed a little apart from the support base 2, approximately half of the pin rotor 5 is made to protrude between the support base 2 and the pin rotor 5. ). As the press-fit rotor 4 and pin rotor 5 rotate, the sphere 21 comes into contact with the sphere 27 and rides on it, and can move inward together with the press-fit pin 18 against the elasticity of the compression spring 20. Holes 28 are formed in both support stands 2 at positions slightly shifted downstream in the rotation direction of the press-fit rotor 4 and pin rotor 5 from the position where the cap r ₂ is supplied by the first cap supply chute 15. are arranged so as to be in line with the grooves 7 and 8 of the rotating press-fit rotor 4 and pin rotor 5. Each hole 28 is provided with a pressing device 30. Particularly, as is clear from FIGS. 5B and 5C, among these pressing devices 30, the pressing device 30 on the side to which the cap _r2 is not supplied has a male screw 25, a stopper pin 26, a sphere 27, etc., like the pressing device 24. It is configured. As an example of the pressing device 30 on the side to which the cap _r2 is supplied, a large diameter female screw 31 is formed inside the rear part of the hole 28, and an adjustment male screw 32 is screwed into this female screw 31, and the position is adjusted by a nut 33. Possibly fixed. The base of the press pin 36 is inserted into the recess 34 inside the male screw 32 with an elastic member such as a compression spring 35 interposed therebetween, and approximately half of the sphere 37 at the tip of the press pin 36 is inserted into the hole 28, and the sphere 37 is inserted into the hole 28.
About half of the remaining portion protrudes into the annular groove 22. (In addition, when the pin rotor 5 is separated from the support stand 2 a little, the remaining half is made to protrude between the support stand 2 and the pin rotor 5.) The elasticity of the compression spring 35 in this pressing device 30 is set to be stronger than the elasticity of the compression spring 20. As the press-fit rotor 4 and pin rotor 5 rotate, the sphere 2
1 contacts and rides on the sphere 37, and the compression spring 20
can move inward together with the press-fit pin 18 against the elasticity of the press-fit pin 18. Holes 38 are formed in both support stands 2 at positions slightly shifted downstream in the rotation direction of the press-fit rotor 4 and pin rotor 5 from the position where the cap r ₂ is supplied by the second cap supply chute 16. is the press-fit rotor 4 that rotates.
and are arranged so as to be in line with the grooves 7 and 8 of the pin rotor 5. Each hole 38 has a pressing device 40
is provided. In particular, Figures 3 and 5 D and E
As is clearer, among these pressing devices 40, the pressing device 40 on the side into which the cap _r2 has already been press-fitted
is composed of a male screw 25, a stopper pin 26, a sphere 27, etc., like the pressing device 24, and the pressing device 40 on the side to which the cap _r2 is supplied has a male screw 32, a compression spring 35, like the one pressing device 30, etc. , a pressing pin 36, a sphere 37, and the like. A discharge chute 41 is provided downstream from the pressing device 40 in the rotational direction of the press-fit rotor 4 and pin rotor 5. The upper end of the discharge chute 41 is inserted into the circumferential groove 10, and the distal end is connected to the support base 42.
It is fixed to the base 1 by.

Next, the operation of the present invention will be explained. As described above, the element _r1 is supplied from the parts feeder to the element groove 7 of the rotating press-fit rotor 4 via the element supply chute 14 and the supply rotor 11. When the press-fit rotor 4 and the pin rotor 5 rotate slightly from this supply position, the press-fit pin 18 appears as shown in FIG. 5A.
When the sphere 21 rides on the sphere 27, it is pushed inward against the elasticity of the compression spring 20, thereby correcting the position of the element _r1 so that its center is located at the center of the element groove 7. At this time, the press-fit pin 18 moves forward when the ball 21 rides on the ball 27, so that wear can be prevented. From this position correction position, press-fit rotor 4 and pin rotor 5
When the cap _r2 rotates slightly, the cap r2 is supplied from the parts feeder to the cap groove 8 on one side through the first cap supply chute 15, as shown in FIG. 5B. When the press-fit rotor 4 and the pin rotor 5 rotate slightly from this supply position, the press-fit pin 18 rides on the spheres 27 and 37 as shown in FIG. 5C, and is pushed inward against the elasticity of the compression spring 20. As a result, one press-fitting pin 18 positions the end face of the element _r1 , and the other press-fitting pin 18 pushes the cap _r2 so that it can be press-fitted into one side of the element _r1 (see FIGS. 2A, B, (see C).
At this time, there are variations in dimensions between the element r ₁ and the cap r ₂ , but since the compression spring 35 is interposed between the press pin 36 and the adjustment screw 32, the expansion and contraction of the compression spring 35 causes the press-fit pin 18 to The stroke can be made to correspond to variations in the dimensions of the element _r1 and the cap _r2 . When the press-fit rotor 4 and pin rotor 5 rotate slightly from this press-fit position, the cap _r2 is supplied from the parts feeder to the cap groove 8 on the other side via the second cap supply chute 16, as shown in FIG. 5D. . When the press-fit rotor 4 and pin rotor 5 rotate slightly from this supply position, the fifth
As shown in FIG. By positioning the end face of the cap _r2 , that is, the element _r1 , the other press-fitting pin 18 can push the cap _r2 and press-fit it into the other side of the element _r1 (see FIGS. 2D and E). The resistor element with the cap _r2 press-fitted on both sides of the element _r1 is discharged through the discharge chute 41 by further rotation of the press-fit rotor 4 and the pin rotor 5. Thereafter, the capping work can be performed continuously by repeating the above operations.

As is clear from the above description, according to the present invention, a plurality of sets of central element grooves and cap grooves on both sides are provided at approximately equal intervals on the outer periphery of the press-fit rotor parallel to the axis, and the rotation direction of the press-fit rotor is The elements are first supplied to the element groove with the phase shifted sequentially, and after being supplied, the press-fit pins of the pin rotor are provided on both sides of the press-fit rotor so as to be able to rotate together with the press-fit rotor by means of pressing devices provided on the support stands on both sides. are moved forward, and the center of the element is brought to approximately coincide with the center of the element groove using these press-fitting pins. Next, a cap is supplied to the cap groove on one side, and after being supplied, the press pin of the pin rotor is advanced by a press device provided on the support base, the end face of the element is positioned by one press-fit pin, and the cap is inserted by the other press-fit pin. Press fit into one side of the element. Next, the cap is supplied to the cap groove on the other side, and after supplying, the press-fitting pin of the pin rotor is advanced by a pressing device provided on the support base, and the end face of the press-fitted cap, that is, the element, is positioned by one press-fitting pin. The other pressing pin press-fits the cap onto the other side of the element. Therefore, the cap can be reliably press-fitted by positioning the element without damaging it, and even if it is an ultra-small resistor, a good product with high precision can be assembled. Further, there are advantages in that it is possible to prevent the elements from flying out and to prevent only the cap from being placed in a product receiving box, thereby eliminating the need for sorting work and improving work efficiency.

[Brief explanation of the drawing]

FIGS. 1A and B are front views of resistors assembled using the conventional capping device, FIGS. 2A to E are front views showing the order of assembling the resistor using the capping device of the present invention, and FIG. 3 is the front view of a resistor assembled using the capping device of the present invention. FIG. 4 is a partially cutaway rear view showing one embodiment of the capping device, FIG. 4 is a partially cutaway side view thereof, and FIGS. 5A to 5E are explanatory views of the operation. 2... Support stand, 4... Press fit rotor, 5... Pin rotor, 7... Groove for element, 8... Groove for cap,
11... Element supply rotor, 14... Element supply chute, 15... First cap supply chute, 16... Second cap supply chute, 1
8... Press-fit pin, 24, 30, 40... Pressing device, r ₁ ... Element (insulator), r ₂ ... Cap.

Claims (1)

[Scope of utility model registration request] a support base, rotatably supported by the support base,
A press-fit rotor having a plurality of sets of central element grooves and cap grooves on both sides parallel to the axis at approximately equal intervals on the outer periphery; a pin rotor supported coaxially with the press-fit rotor on both sides of the press-fit rotor; A support hole formed opposite each groove of the pin rotor, a press-fit pin slidably supported in each support hole, an elastic body that urges each press-fit pin backward, and a support hole formed opposite to each groove of the rotor, an elastic body that urges each press-fit pin backward, and a A sphere inserted into a support hole on one side, an element feeder provided at positions sequentially shifted in phase in the rotational direction of the press-fit rotor and feeding the element into the groove for the element, and a cap in the groove for the cap on one side. A first cap feeding device that supplies the caps, a second cap feeding device that feeds the caps to the cap groove on the other side, and a press-fitting rotor and a are provided on the support stand at positions shifted in phase from each other on the downstream side of the rotational direction of the pin rotor,
A capping device for electronic components, comprising a pressing device for pressing the sphere.