JPH0336736B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is installed in a component assembly line such as a line for attaching electronic components to a printed circuit board, and
This relates to a device for supplying each product individually.

(Prior Art) FIG. 4 shows a conventional printed circuit board assembly line, in which an automatic component insertion robot 13 is installed on a conveyor 11 that intermittently conveys printed circuit boards 12, and parts are supplied to the side of the conveyor 11. Device 1 is deployed.

The parts supply device 1 stores magazines 2 in which parts 22 are stored in a cylindrical body 21 in a stacked manner in a stocker 5, and the stocker 5 is removably mounted obliquely on a take-out table 14 provided at the base of the line. .

The take-out stand 14 is provided with a chute 15 on an extension of the magazine 2a at the bottom of the stocker 5.
The parts 22 that fall down from the magazine 2a are taken out one by one by a parts take-out device 16 that reciprocates between the tip of the chute 15 and the robot 13 side.

When the magazine 2a at the bottom is empty, take out the magazine 1
An empty magazine is ejected to the side by an ejection device (not shown) provided on the magazine 4, and the next magazine is lowered by its own weight.

In the above-mentioned supply device, when the stocker 5 becomes empty, the stocker 5 is removed from the take-out table 14 and replaced with a stocker 5 filled with a magazine.

(Problem to be solved) When converting the above-mentioned stocker 5, the take-out table 14
Only a small number of the parts on the chute 15 remain, and if the conversion is delayed, the supply of parts will run out, which will reduce the operating rate of the assembly line.

(Means for solving the problem) The present invention improves the stocker so that
The purpose is to solve the problems of the previous term.

In the present invention, a stocker 5 is constructed of a fixed frame 3 that is fixedly supported on a takeout stand 14 and can accommodate one or more magazines 2, and a carrier 4 that is removably placed on the fixed frame 3 and can accommodate a plurality of magazines 2. do.

The upper surface of the fixed frame 3 is open, an opening _S1 is formed at the lower side surface through which the magazine 2 can pass, and an opening _S2 through which the component 22 can pass is formed at the lower part of the front end.

The lower surface of the carrier 4 is open, and an opening/closing plate 42 is provided on the lower surface of the opening so that it can be opened and closed.

(Operations and Effects) The magazine 2 is stored in the carrier 4, placed on the fixed frame 3 on the take-out table 14, and the opening/closing plate 42 of the carrier 4 is opened.

The lower magazine 2 in the carrier 4 is attached to the fixed frame 3
The parts slide down from the lowest magazine 2a onto the chute 15 of the take-out table 14 under their own weight.

In the same way as before, the parts are taken out one by one by the parts taking out device 16 starting from the most advanced part on the chute 15.

When the lowermost magazine 2a becomes empty, the magazine 2 is ejected from the side of the fixed frame 3 by the magazine ejecting device 6.

Empty magazines 2 are sequentially ejected and transferred to carrier 4.
The empty carrier 4 is replaced with the carrier 4 filled with the magazine in a state in which the magazine is left inside the fixed frame 3.

During this exchange, since the magazine 2 full of parts remains in the fixed frame 3, sufficient time can be gained for replacement, and there will be no shortage of parts.

(Embodiment) FIG. 1 shows a state in which a component supply device 1 of the present invention is installed in a line in which various electronic components are assembled onto a printed circuit board 12. As shown in FIG.

The printed circuit board 12 is placed on a conveyor 11 and moves intermittently, and a component insertion robot 13 that moves three-dimensionally above the conveyor 11 attaches components 22 to the board 12.

A substantially triangular component take-out stand 14 is provided on the side of the conveyor 11, and a magazine stocker 5, which is a feature of the present invention, is provided on the take-out stand 14.

The takeout table 14 has a slope 18 that is lowered on the conveyor 11 side, and a chute 15 is formed at the tip of the slope. Take-out device 1 that takes out parts one by one from chute 15
6 are deployed.

The stocker 5 is composed of a fixed frame 3 fixed to the slope 18 of the take-out stand 14, and a carrier 4 attached to the fixed frame 3 in a removable manner.

As shown in FIG. 2, the fixed frame 3 has two sets of guide plates 32, 32, 33, 33 of different lengths protruding downward from both longitudinal sides of a rectangular upper frame 31 through which the magazine 2 can pass. A support plate 34 for preventing the magazine 2 from falling is fixed between the length guide plates 32, 32. Between the lower ends of the short guide plates 33, 33 and the support plate 34, a gap _S1 is formed which is slightly larger than the height and width _S3 of the magazine 2.

A front plate 35 and a rear plate 36 are provided at the front end and rear of the upper frame 31 with a gap slightly larger than the entire length of the magazine 2.
is provided to protrude downward, and the front plate 35 is provided with an opening S ₂ that prevents the passage of the cylinder body 21 of the magazine 2 but allows the passage of the component 22.

The upper surfaces of both sides in the longitudinal direction of the upper frame 31 are guide surfaces 37, 37 on which a carrier 4 (to be described later) slides, and a guide wall 38 is provided protruding from the outside of the guide surfaces over approximately the entire length of the upper frame 31. Ru.

A U-shaped receiving part 39 that can be engaged with and detached from an engaging piece 40 of a carrier 4, which will be described later, is formed in the front part of the upper frame 31. A spring loaded click ball (not shown) is provided.

The carrier 4 has an open top and bottom, and is attached to the fixed frame 3.
It is formed in a size that allows stacking of about 10 magazines 2.

Rollers 41, 41 rolling on the guide surface 37 of the fixed frame 3 are disposed on both sides of the lower part of the carrier 4.

A pair of opening/closing plates 42, 42 are rotatably provided on the lower surface of the carrier 4 to prevent or allow the magazine 2 in the carrier 4 to fall.

The opening/closing plate 42 has one end protruding into the lower surface of the carrier 4, and the other end is pivotally connected to an operating rod 43 slidably disposed on the side of the carrier 4.

The operating rod 43 is biased by a spring 48 so as to direct the free end of the opening/closing plate 42 toward the lower surface of the carrier 4. When the operating rod 43 is pulled against the spring 48, the opening/closing plate 42 moves toward the carrier 4. Release the bottom surface of 4.

A block 44 having an elongated hole 46 on its upper surface is fitted and fixed to the operating rod 43, and a pin 49 that is movable up and down and biased downward by a spring (not shown) is attached to the side of the carrier 4. It is slidably fitted into the hole 46 and regulates the stroke of the operating rod 43. Long hole 46
An engagement hole 47 into which a pin 49 is deeply fitted when the operating rod 43 is pulled is provided at the bottom of the hole 47.
When the pin 49 is engaged, the opening/closing plate 42 keeps the lower surface of the carrier 4 in an open state.

At the front end of the carrier 4, there is a receiving part 3 for the fixed frame 3.
An engagement piece 40 that fits into the hole 9 is formed, and the engagement piece 40
A recess 40a is formed in which a click ball (not shown) of the receiving portion 39 engages and disengages.

A handle 45 is provided protruding from the rear of the carrier 4.

When the lowest magazine 2a in the fixed frame 3 is empty, it is placed on the take-out table 14 between the guide plate 33 and the support plate ₃₄ of the fixed frame 3. (on the side) is provided with an ejection device 6 for ejecting an empty magazine. The ejection device 6 is similar to the conventional one, and is provided with a frame 62 that is moved perpendicularly to the longitudinal direction of the magazine 2 by a first air cylinder 61 below the fixed frame 3. It is constructed by disposing a pair of second air cylinders 63 opposite the front and rear positions of the magazine 2 with the pistons 64 facing upward.

As shown in Fig. 1, the magazine 2 is stored in the carrier 4, the carrier 4 is placed on the rear of the fixed frame 3 on the take-out table 14, and it is made to slide forward, and at the forward end, the carrier 4 is pushed diagonally forward. .

As a result, the engaging piece 40 of the carrier 4 engages with the receiving portion 39 of the fixed frame 3, and the carrier 4 does not wobble.

Pull the operating frame 43 of the carrier 4 and open/close the opening/closing plate 4.
2 to the outside to release the lower surface of the carrier 4.

The lower magazine in the carrier 4 falls into the fixed frame 3, and the parts 22 slide down from the lowermost magazine 2a onto the chute 15 of the take-out table 14, and are supplied to the robot 13 one by one by the take-out device 16. .

When the lowest magazine 2a is empty, the second air cylinder 63 of the magazine discharge device 6 is activated to push up the piston 64, and the lowest magazine 2a is emptied.
to correspond to the aspects of

Next, the first cylinder 61 is operated to move the second cylinders 63, 63 in a direction perpendicular to the magazine 2a.

As a result, the empty magazine 2a is ejected from the space _S1 between the support plate 34 and the guide plate 33 of the fixed frame 3, and the next magazine 2 falls onto the support plate 34.

The above operations are repeated, and when the carrier 4 becomes empty, the carrier 4 is pulled out from the fixed frame 3 and replaced with the carrier 4 filled with the magazine 2.

During this time, since the magazine full of parts remains in the fixed frame 3, sufficient time can be gained for replacement, and the supply of parts will not run out.

It goes without saying that the configuration of each part of the present invention is not limited to the above-mentioned embodiments, and various modifications can be made within the technical scope of the claims.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the carrier being set in the fixed frame, Figure 2 is a side view of the fixed frame and carrier combined, Figure 3 is a sloped view of the fixed frame and carrier, and Figure 4 is the conventional It is an explanatory diagram of an example. 2...Magazine, 3...Fixed frame, 4...Carrier, 5...Stocker, 42...Opening/closing plate.

Claims (1)

[Claims] 1 The magazine 2 is constructed by storing the parts 22 in the cylinder 21, and the stocker 5 in which the magazines are stacked and stored is mounted obliquely to the parts take-out table 14 provided on the parts installation line, and taken out from the magazine 2 at the bottom. The components 22 sliding onto the chute 15 of the stand 14 are taken out one by one by the take-out device 16, and the magazine ejection device 6 provided on the take-out stand 14
In a parts supply device that sequentially discharges empty magazines to the side by
The fixed frame 3 is fixedly supported and can accommodate one or more magazines, and the carrier 4 is removably placed on the fixed frame 3. While it is possible to pass 〓
S ₁ is formed, and an opening S ₂ is formed at the lower part of the front end that allows the component 22 to pass through but prevents the magazine from passing through, and the lower surface of the carrier 4 is open, and the opening/closing plate 42 can be opened and closed in the lower opening. Parts feeding device provided.