JPH01251798A - Parts separation equipment - Google Patents

Abstract

PURPOSE:To make it possible to separate parts which are placed on the end of a part feeder and are conveyed in line without damaging the parts, by holding only a lead of the parts which are positioned by a stopper placed on the end of the part feeder, with tapered positions which are the most projected parts of claws towards the lead side. CONSTITUTION:Being pushed by a line feeder 10, loop coils 11 are conveyed in line and positioned at a place where a stopper 13 exists. A jig cylinder 25 operates, a cam 22 moves upwards and opening and shutting members 18, 18, which have been standing by in a shutting state within an alignment portion 10a, are opened. A pair of claws 15, 15 move outwardly while rotating with each pivot 18a of rotors 18, 18 serving as fulcra. The outer surface of the claws 15, 15 is provided with tapered portions which are getting projected towards a lead side as the claws come near the end of the part feeder 10. Therefore, only a loop coil which is on the end of the part feeder 10 is separated reliably from the other loop coils 11 which are lined on the alignment portion 10a.

Description

[Detailed Description of the Invention] [Purpose of the Invention (Industrial Application Field) This invention relates to a separation method for escaping electronic components such as loop-shaped workpieces that are aligned and conveyed in order to be mounted on a circuit board. Regarding equipment.

(Prior Art) One type of electronic component mounted on a circuit board is a micro-sized loop formed from a thin wire material called a loop coil 1 in a U-shape, as shown in FIG. 4 or FIG. There is a similar work.

By the way, such a loop coil 1 is parallel to both ends -
2.2, but it is difficult to handle due to its minute and special shape, so it is difficult to automate when supplying it one by one.Only loop coil 1 can be manually supplied as shown in Figures 4 and 5. It is inserted into the circuit board 3.

That is, although it is possible to construct a conveyance path using a parts feeder (line feeder) 4 as shown in FIGS. 6 and 7 and feed the loop coil 1 to a predetermined position in a riding state, For this reason, the aligned frontmost loop coils 1 that are continuously fed from the conveying end of the parts feeder 4 are transferred to the supply unit 5 for inserting the loop coils 1 into the circuit board 3. 1
It is difficult to separate the two so that they are not supplied at the same time. Note that separating only the necessary parts from the parts sent in a line is called escaping.

Therefore, in order to realize automation, we considered a separation apparatus as shown in FIG. 8, and separation apparatuses as shown in FIGS. 10 and 11.

In the device shown in FIG. 8, a presser piece 7 is provided above the discharging end of the parts feeder 4 so as to be movable up and down, and the convex portion 6 is formed on the lower surface portion corresponding to the position of the loop coil 1 at the discharging end. Loop coil 1 remaining on parts feeder 4 with presser foot 7
By fixing the loop coil 1 to be supplied to the supply unit 5, the loop coil 1 is separated.

10 and 11, a shutter plate 8 made of a thin plate member is provided above the delivery end of the parts feeder 4 so as to be movable up and down, and the shutter plate 8 is connected to the loop coil 1 at the end and the parts feeder. The loop coil 1 is separated by inserting it between the loop coil 1 of the next stage remaining on the coil 4.

(Problem to be Solved by the Invention) However, in the former loop coil holding method, since the loop coil 1 has a circular cross section, when pressed with the holding piece 7, the loop coil 1 is separated as shown in FIG. may be tilted and may not be supplied to the supply unit 5 as specified. Moreover, if the inclination is large, the loop coil 1 may accidentally fall from the delivery end of the parts feeder 4.

In addition, the latter one-shutter type has the disadvantage that the shutter plate 8 is thin, so the shutter position varies each time it goes up and down, and the loop coil 1. The remaining loop coil 1 was easily damaged and was not a good product.

This invention was made with attention to these circumstances,
To provide a parts separation device capable of separating end parts that are stably conveyed in alignment without damaging the parts.

[Structure of the Invention (Means for Solving the Problems)] In order to achieve the above object, the present invention provides a conveyance path for conveying substantially U-shaped parts having parallel leads at the ends in an orderly manner while riding a horse. A stopper is provided at the unloading end of the conveying path to position the parts to be unloaded, and a pair of tapered portions are formed on the surfaces on both sides of the unloading side of the conveying path so that they become closer in the conveying direction. A claw body that can be opened and closed is provided. A drive mechanism for opening and closing the claw body is provided.

(Function) The parts that are sequentially aligned and transported on the transport path are positioned by a stopper at the end of the transport.

Then, only the leads of the positioned components are held by the tapered portions of the pair of claws that protrude furthest toward the leads, and separated.

(Example) The present invention will be described below based on an example shown in FIGS. 1 to 3. The drawing shows a parts separation device, and in FIG. 1, 10 is a parts feeder (line feeder) having a line of alignment parts 10a with a T-shaped cross section forming a conveyance path.
There are ten. Then, in this alignment section 10a, the circuit board If(
The first loop coil 11, which is a component mounted on a
In the figure, they can be conveyed in alignment from the left side to the right side. Note that the loop coil 11 is formed by forming a thin wire into a U-shape and forming parallel leads 12 and 12 at the tip, as described in the ``Prior Art'' section. A stopper 13 is provided opposite the discharge end of the parts feeder 10. For example, the stopper 13 has a structure in which a convex part (not shown) is provided on the upper surface of the support part 14 that receives the loop coil 11 in a riding state. The coil portion 11a is brought into contact with the protrusion so that it can be stopped at a predetermined position. A pair of plate-shaped claw bodies 15, 15 that can be opened and closed are provided below the fixed position of the stop flange 13.
has been established.

That is, as shown in FIGS. 2 and 3, the claw body 1
5 and 15 are arranged opposite to each other on both sides of the concave alignment portion 10a of the parts feeder 10 exposed from the lower side of the stopper 13. The claw bodies 15, 15 are provided on the inner surface of the loop coil 11 facing the lead 12, and the lead 12 is attached to the inner surface of the loop coil 11 toward the delivery end as shown in FIG.
A tapered portion 16 is formed that protrudes toward the second side.

On the other hand, the frame 17 located below the slightly projecting end of the parts feeder 10 is rotatably provided with a pair of substantially dogleg-shaped opening/closing members 18 and 18 whose lower ends are pivot points.

Note that the opening/closing member 18.18 is always biased toward the "close" side by a compression spring 19 provided in a parallel portion on the upper stage side. A claw body 15 is attached to each tip of this opening/closing element 18.18.
, 15 are connected and support the claw bodies 15, 15 so as to be openable and closable.

On the other hand, 20 is a pair of rollers built into each opening of the opening/closing member 18, 18, and 21 is a jig, for example, a hydraulic cylinder installed at the lower part of the delivery side of the parts feeder 10 with the piston 21a facing upward. Cylinder, 22 is the switch 18.
The cam is disposed on the lower side between the 18 bent portions and is movable up and down between the bent portions. The rollers 20, 20 are
A part of the outer periphery of the opening/closing member 18.18 is built into the opening/closing member 18 in a state where it protrudes inward from the bent portion thereof, and forms a cam entry path between the rollers 20. Further, the cam 22 has, for example, a band shape whose width gradually becomes narrower toward the tip. Then, the rear end of the cam 22 and the jig cylinder 2
The piston 21a of No. 1 is connected via a crank-shaped connecting portion 23, and by operating the jig cylinder 21 on the side where the piston 21a rises, the tip of the cam 22 pushes open the gap between the rollers 20, 20. , the claw body 15°15 can be opened.

The drive mechanism composed of the cam 22 and the jig cylinder 21 drives the loop coil 1 at the unloading end.
1 can be separated from the parts feeder 10. In other words, when the claw bodies 15, 15 open in the direction of the arrow in FIG. The leads 12.12 of the coil 11 are adapted to be fixed.

Further, on the delivery end side of the parts feeder 10, a claw body 15.1 is provided.
A supply unit 24 is provided which is integral with the stopper 13 and receives the loop coil 11 held by the stopper 5. The supply unit 24 is provided with a support plate 26 that can be tilted rearward by a drive source such as a hydraulic cylinder 25, and the stopper 13 is connected to the upper end of the support plate 26. A parallel chuck mechanism 28 that opens and closes a pair of parallel chucks 27 and 27 using air pressure, for example, is installed on the upper side of the support plate 26 so that it can be raised and lowered via a lifting cylinder (not shown). and the above-mentioned claw body 15,1
Lead 12.1 of loop coil 11 escaped with 5
2 from the outside with a chuck 27°27, and then
The held loop coil 11 is transferred from the rearward tilting of the support plate 26 and the upward movement of the lifting cylinder to an automatic parts insertion machine (not shown) located at the rear of the parts feeder (for inserting the loop coil 11 into the circuit board 3). It is now possible to set it on

Next, the operation of the thus configured separation device will be explained.

The loop coils 11 are aligned and conveyed by the pushing force of the line feeder 10, and their movement is determined by the stopper 13. Then, the jig cylinder 25 is activated and the cam 22 is moved upward. As a result, the switch 1 that was waiting in the closed state inside the alignment section 10a
8.18 is pushed and expanded by the cam 22, and the claw bodies 15,1
5 rotates outward around each pivot shaft 18a, 18a of the rotor 18.18 as a fulcrum. Here, since tapered portions 16 are formed on the outer surfaces of the claw bodies 15.degree. 15, which protrude toward the lead side as they move toward the delivery end of the parts feeder 10, parts are removed as the claw bodies 15.degree. 15 open. Only the loop coil 11 at the discharge end of the feeder 10 is
The loop coils 11 are reliably separated from the loop coils 11 arranged on the alignment section 10a.

Subsequently, air pressure is supplied to the parallel chuck mechanism 28,
The chucks 27 and 27 that were waiting outside the parts feeder 10 in the width direction are driven in the closing direction. here,
Since a groove (not shown) corresponding to the lead 12 is formed on the inner surface of the chuck 27.27, the separated loop coil 11 is fixed. After the holding, the hydraulic cylinder 25 is activated and the support plate 26 is tilted in the direction indicated by B in FIG. The loop coil 11 will be set.

However, the loop coil 11 at the unloading end can always escape as specified without tilting or falling as in the conventional case. Moreover, the lead 1 can be
2, the loop coil 11 will not be damaged unlike the conventional shutter method, and the loop coil 11 can be automatically escaped without any trouble.

In one embodiment, the leads of the loop coil are expanded outward by the claws 15, 15, but of course the loop coil may be held by contracting the leads inward. Further, in one embodiment, a cam is used to open and close the claw body, but other structures may be used to open and close the claw body.

[Effects of the Invention] As explained above, according to the present invention, components at the end of the conveyance path can always escape as specified without tilting or falling. Moreover, since the structure uses the tapered portion to hold the lead of the component, the component will not be damaged, and the component that is being conveyed in alignment can be stably escaped without any hindrance.

Therefore, it is possible to automate the process of escaping special small parts, which used to be done manually.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention.
The figure is a side view showing the separation device, and Figure 2 is the part shown in Figure 1.
■A cross-sectional view along the line, Figure 3 is a bottom view showing only the parts at the unloading end are held by the tapered part of the claw body, Figures 4 and 5 are the special shapes mounted on conventional circuit boards. Fig. 6 is a side view showing a device designed to feed the parts using a parts feeder, Fig. 7 is a sectional view showing the supported state of the parts, and Fig. 8 is the A side view showing the holding method attempted to separate the frontmost part, Figure 9 is a side view showing the state in which the frontmost part is tilted, and Figure 10 is a side view showing the frontmost part being separated. FIG. 11 is a side view showing a shutter method attempted to achieve this, and FIG. 11 is a front view showing separation by a shutter plate. 10... Parts feeder (conveyance path), 11... Loop coil (parts), 12... Lead, 13... Stopper, 15... Claw body, 21... Shaft cylinder, cam (
drive mechanism). Figure 4 Figure 5 Figure 6 Lower Figure 8 Figure 9 Figure 10 Figure 11

Claims (1)

[Claims] A conveyance path for aligning and conveying U-shaped parts having parallel leads at the tips, a stopper provided at the discharge end of this conveyance path to position the components to be conveyed, and a discharge side of the conveyance path. A pair of openable/closable opening/closing parts formed on both sides of the tapered portions, each of which has a tapered portion that approaches the lead of the component as it goes in the conveying direction, on the surface facing the lead of the component to be conveyed in a conveying direction. a claw body, and a drive mechanism that opens and closes the claw body to hold only the most unloaded end part positioned by the stopper at the most protruding part of the claw body and separate it from the conveyance line that is aligned and conveyed. A parts separation device characterized by comprising: