JPH0748344Y2 - Goods supply equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an article supply device useful for supplying rectangular articles such as electronic parts.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Laid-Open No. 62-14 / 1987 discloses a supply device capable of sequentially supplying rectangular electronic components.
No. 9200 is known.

As shown in FIG. 11, this feeder is a magazine 101 capable of accommodating electronic components P stacked vertically.
And a stand block 102 for supporting the magazine 101 in an upright state, and arranged below the stand block 102,
Guide block 103 for guiding the electronic component P in a predetermined direction
And a pushing means 104 for pushing the lowest electronic component P1 stored in the magazine 101 into the groove of the guide block 103.

The pushing means 104 is an air cylinder 104a.
And a slider 104c with a pin 104b connected to the rod of the air cylinder 104a, and a pin 10 of the slider 104c in the slot 104d.
4b inserted escape plate 104e and slider 104c
Is connected to the rear end of the escape plate 10 at its free end.
It is composed of a leaf spring 104f that presses and supports the rear end of 4e.

That is, in the above-mentioned supply device, the air cylinder
By extending the rod of 104a, the escape plate 104e is pushed forward through the leaf spring 104f, and the escape plate 104e is pushed forward.
The lowest electronic component P1 stored in the magazine 101 can be pushed out into the groove of the guide block 103 at the tip of the cartridge 104e, and the escape plate 104e can be returned to the original position by reducing the length of the rod of the air cylinder 104a. The electronic component P can be sequentially pushed into the groove of the guide block 103 by retracting it to the position and repeating this.

When the groove of the guide block 103 is filled with the electronic parts P and the escape plate 104e cannot move forward, even if the rod of the air cylinder 104a is extended, it is necessary to push the stroke. The bending of the leaf spring 104f is absorbed to prevent the escape plate 104e from moving forward.

[0007]

In the above-mentioned conventional feeding device, the escape of the escape plate 104e when the groove of the guide block 103 is filled with electronic components is allowed by the deflection of the leaf spring 104f. However, a force corresponding to the spring pressure of the leaf spring in a bent state acts on the electronic component P via the escape plate 104e.

In order to minimize the above force, a leaf spring is used.
If 104f having a weak elasticity is used, there is a drawback that the leaf spring becomes depressed due to repeated supply of components and an appropriate supply operation cannot be performed. On the other hand, when a highly elastic leaf spring 104f is used, a considerably large force acts on the electronic component P, and the electronic components P in the aligned state are inclined and are clogged or damaged in the groove of the guide block 103. There is a risk that it will be damaged, and it is extremely difficult to select a leaf spring.

The present invention has been made in view of the above problems, and an object thereof is to provide a strobe required for extrusion even when a groove for guiding a rectangular article such as an electronic component is filled with the article. -To provide an article supply device that can effectively absorb burrs and can minimize the force applied to the article.

[0010]

In order to achieve the above object, according to claim 1, an article storage unit capable of stacking and storing rectangular articles and a lowermost article stored in the article storage unit are provided in the article storage unit. In an article supply device comprising an extruding means for extruding from an article and an article guide groove for guiding the extruded article in a predetermined direction, the extruding means comprises a first arm having an extruding part at one end and a first arm. A second arm that pivotally supports the other end of the arm toward one end and that is rotatably supported at a substantially central portion, a first arm and a second arm. Is held linearly with a predetermined holding force, and when a force exceeding the holding force is applied during the extrusion process, the holding means is capable of releasing the holding force, and the other end of the second arm is brought into contact with the holding means. It consists of a cam that swings the 2 arm and a drive source that drives the cam to rotate in a predetermined direction. That.

Further, according to a second aspect of the present invention, an article storage unit capable of stacking and storing rectangular articles, an extrusion unit for extruding the lowest article stored in the article storage unit from the article storage unit, and an extruded article In the article supply device provided with an article guide groove for guiding the article in a predetermined direction, the push-out means engages the push-out arm having an operation pin at a rear end thereof with the operation pin slidably and rotatably. A drive arm having an elongated hole, a holding means for holding the operation pin at the front end of the elongated hole, and releasing the holding when a force exceeding the holding force is applied during the extrusion process, and the drive arm. The rear end portion is rotatably supported, and is composed of a cam that advances and retracts the drive arm, and a drive source that rotationally drives the cam in a predetermined direction.

[0012]

In the article supply apparatus according to the present invention, the article is extruded by actuating the drive source and rotating the cam in a predetermined direction. The rotation of the cam causes the second arm to swing in a predetermined direction around the shaft support portion, and the first arm held by the holding means on the second arm side is the second arm.
The lowest article stored in the article storage section is extruded from the article storage section into the article guide groove by the pushing section that swings in the same direction in synchronization with the frame and moves forward by the swing of the first arm. It

The article guide groove is filled with the article and the first
When the pushing-out portion of the arm cannot move forward, the holding of the first arm by the holding means is released when a force exceeding the holding force of the holding means acts in the pushing process, and the first arm is released. Apart from the second arm, the second arm remains at the same position and only the second arm swings. That is, when the holding by the holding means is released, no force acts on the article in the article guide groove from the first arm.

Extrusion of an article in the article supply apparatus according to the second aspect is performed by operating a drive source and rotating a cam in a predetermined direction. By the rotation of the cam, the rotational movement is converted into a linear movement by the driving arm, and the pushing arm held by the holding means at the front end portion of the long hole advances in synchronism with the driving arm to move the pushing arm. The lowest article stored in the article storage section by the frame is pushed out of the article storage section into the article guide groove.

When the inside of the article guide groove is filled with articles and the pushing arm cannot move forward, a force exceeding the holding force of the holding means acts in the pushing process, and the pushing arm of the holding means moves. The holding is released, the operation pin retracts along the elongated hole of the drive arm, the pushing arm remains at the same position, and only the drive arm advances. That is, when the holding by the holding means is released, no force acts on the article in the article guide groove from the pushing arm.

[0016]

1 to 10 show an embodiment of the present invention. FIG. 1 is a side view of an article supply device showing a magazine separated state, and FIG. 2 is a partial cutaway of the article supply device showing a magazine attached state. 3 is a side view, FIG. 3 is a partial perspective view of the apparatus main body, FIG. 4 is a perspective view of a magazine, FIG. 5 is a perspective view of a magazine showing a lid plate opened state, FIG. 6 is a perspective view of pushing-out means, and FIGS.
Is an operation explanatory view.

First, the structure of the article supply apparatus will be described with reference to FIGS.

The article supply apparatus shown in FIG. 1 is intended to supply an IC (hereinafter referred to as an article P) of a small outline package having a rectangular shape, and the apparatus main body 1 and a magazine 11 for article storage. And an extruding means 21 mounted on the apparatus main body 1.

An article guide groove 3 for guiding an extruded article P in a predetermined direction with a concave portion 2 for magazine attachment interposed between the upper surface of the apparatus main body 1 and an extruding piece 22 of an extruding means 21.
The push-out piece guide groove 4 that guides the forward and backward movements is linearly formed.

The article guide groove 3 has a width and height slightly larger than that of the article P, and the upper surface except the front end portion is closed by a top plate 3a, and the front end portion corresponds to one article P. Is opened as an outlet 3b that is exposed with a margin. Further, the front end wall of the article guide groove 3a holds the article P at the foremost end to the one side of the article guide groove 3, and more specifically, the IC as the article P is attracted by magnetic force to the one side of the article guide groove 3 A magnet 3c to be held at is attached.

The push-out piece guide groove 4 has a cross-sectional shape that allows the push-out piece 22 to move forward and backward, and has an upper surface on which a top plate 4a is formed.
The engaging portion 22a of the push-out piece 22 is horizontally opened as a moving hole 4b in which the engaging portion 22a of the extruding piece 22 moves in a protruding state.

On the lower surface of the device body 1, the device body 1
A right-angled cutout 5 is formed for use when the is attached to a metal base plate or the like. Pins 5a for positioning are provided on the upper surface of the notch 5 so as to project at two locations.
A magnet 5b is attached to fix the magnet to the base plate side by magnetic force.

The magazine 11 has a vertically long rectangular parallelepiped shape,
A pair of side plates 12 having a width slightly larger than that of the article P and opposed to each other, and a back plate 1 interposed between rear ends of the side plates 12.
3, a top plate 14 interposed between the upper ends of the side plates 12, and a bottom plate 15 interposed at a position spaced from the lower ends of the side plates 12.
And a lid plate 16 whose side edge is rotatably supported by one side plate 12.

Between the upper surface of the bottom plate 15 and the lower end of the back plate 13, there is formed an insertion port 17 for inserting the extruding piece having a height and width slightly larger than the tip of the extruding piece 22 of the extruding means 21. Has been done. In addition, the upper surface of the bottom plate 15 and the lid plate 1
A discharge port 18 for discharging a product having a height and a width slightly larger than that of the product P is formed between the lower end of 6 and the shape of the discharge port 18 is larger than that of the insertion port 17.

A magnet 14 is provided on the lid plate side of the top plate 14.
a, and metal pieces 16a are attached to the cover plate 16 at positions facing the magnets 14a, respectively. By adsorbing the metal pieces 16a with the magnets 14a, the cover plate 16 can be held in a closed state. There is.

The articles P are stored in the magazine 11 by opening the lid plate 16 and vertically stacking the articles P in the storage space K defined by the side plates 12, the back plate 13, the top plate 14 and the bottom plate 15. Done. The magazine 11 is attached to the apparatus main body 1 by fitting a recess 19 formed at the lower end of the magazine 11 into a step 2a formed in the concave portion 2 of the apparatus main body 1 in a fitted state. Then magazine 11
The insertion port 17 of the device 11 faces the push-out piece guide groove 4 of the device body 1, and the discharge port 18 of the magazine 11 coincides with the article guide groove 3 of the device body 1.

The extruding means 21 includes an extruding piece 22 for extruding an article, a first arm 23, a second arm 24, and an arm.
It is composed of a cam 25 for swinging the cam and a motor 26 for driving the cam.

The extruding piece 22 is formed in a tapered flat plate shape, and has a rear end portion with an engaging portion 22 for engaging the first arm.
It has a sideways and is slidably arranged in the pushing piece guide groove 4 of the apparatus main body 1.

The first arm 23 has a flat plate shape, the upper end of which is engaged with the engaging portion 22a of the pushing piece 22 and the lower end of which is the second arm via the flexible hinge member 23a. Mu 2
4 is swingably supported on the back side near the upper end.
Further, the first arm 23 is located near the hinge member, and the first arm 23 is provided.
A first magnet 23b for holding the frame is attached.

The second arm 24 is in the form of a flat plate, and its central position is rotatably supported by the side surface of the apparatus main body 1 via a shaft member 24a. Also, the second arm 24
A second magnet 24b, which has a polarity different from that of the first magnet 23b, is attached to a portion facing the first magnet 23b. In other words, the first arm 23 and the second arm 24 are linearly held by the attraction between the first magnet 23b and the second magnet 24b with a predetermined holding force associated with the attraction. Further, a third magnet 24c for contacting the cam is attached to the lower end of the second arm 24.

The cam 25 is constructed by attaching an eccentric shaft 25a to a metal disk, and the lower end of the second arm 24 to which the third magnet 24 is attached has a third end regardless of its swing.
Due to the attraction of the magnet 24c, it is in constant contact with the peripheral surface of the cam 25. A spur gear 25b is attached to the eccentric shaft 25a.

A speed reducer 26a is attached to the motor 26, and a crown gear 26c is attached to an output shaft 26b of the speed reducer 26a.
Is attached and meshes with the spur gear 25b.

In this pushing-out means 21, by rotating the cam 25 in a predetermined direction by the motor 26, the second gear
And the first arm 2 held on the side of the second arm 24.
The push-out piece 22 can be moved forward or backward by swinging 3 and 3 in a predetermined direction. Further, when a force exceeding the holding force due to the attraction of the first and second magnets 23b and 24b acts on the first arm 23 when the push-out piece 22 moves forward, the first arm 23 is forced to move.
The arm 23 is separated from the second arm 24 and remains at the same position so that only the second arm 24 is rotated.

Next, the operation of the article supply apparatus will be described with reference to FIGS.

FIG. 2 with the magazine 11 attached to the apparatus main body 1
In this state, the motor 26 of the pushing means 21 is operated to rotate the cam 25 in the clockwise direction.

When the cam 25 rotates 180 ° from the state shown in FIG. 2, the second rotation is caused by the rotation of the cam 25 as shown in FIG.
The lower end of the arm 24 is pressed to the right, and the second arm 24 swings counterclockwise about the shaft support. When the second arm 24 swings, the first magnet 23b
Since the first arm 23 is linearly held on the second arm 24 side with a predetermined holding force by the attraction between the first arm 23 and the second magnet 24b, the first arm 23 and the second arm 24 are also held. It swings in the same direction in synchronization with 24. The swing of the first arm 23 causes the push-out piece 22 engaging with the first arm 23 to advance in the push-out piece guide groove 4, and the tip of the push-out piece 22 is directed to the magazine 1.
1 is inserted into the insertion port 17. As a result, the rear end of the lowest article P1 is pressed, and the article P1 is pushed out of the discharge port 18 into the article guide groove 3.

From the state shown in FIG. 7, the cam 25 is further rotated by 180 °.
When rotated, as shown in FIG. 8, the lower end of the second arm 24 is pulled leftward by the attraction force of the third magnet 24c by the rotation of the cam 25, and the second arm 24 is pivotally supported. It swings in a clockwise direction around. Even when the second arm 24 swings, the first arm 23 is linearly held on the second arm 24 side with a predetermined holding force by the attraction between the first magnet 23b and the second magnet 24b. The first arm 23 also swings in the same direction in synchronization with the second arm 24. This first
When the arm 23 swings, the pushing piece 22 that engages with the first arm 23 retracts in the pushing piece guide groove 4, and the pushing piece 22 is withdrawn from the magazine 11 and returns to its original position. Then
Simultaneously with the completion of extraction, one article P in the magazine 11 is entirely lowered. The contact state between the second arm 24 and the cam 25 is always maintained by the attractive force of the third magnet 24c, including the return after the pushing.

When the above-mentioned pushing operation is repeated, as shown in FIG. 9, the article guiding groove 3 is filled with the article 3, and the article P2 at the foremost end is exposed from the take-out port 3b. The article P is taken out from the supply device through the take-out port 3,
For example, it is performed by suctioning the article P2 at the position of the take-out port 3b with a suction pad (not shown). That is, by rotating the cam 25 once for each take-out, the next article P can be sequentially sent to the position of the take-out port 3b.

If the cam 25 rotates without taking out the article P2 at the take-out port 3b position in FIG. 9 due to a take-out failure or the like,
As shown in FIG. 10, in the initial stage of movement, the lower end of the second arm 24 is pressed to the right by the rotation of the cam 25, and the first arm 23 is also synchronized with the second arm 24. Although it oscillates clockwise, a high resistance is applied to the forward movement of the pushing piece 22, and at the same time, a force exceeding the holding force due to the attraction of the first and second magnets 23b and 24b acts on the first arm 23. The holding is released, the first arm 23 is separated from the second arm 24 and remains at the same position, and only the second arm 24 swings counterclockwise. That is, when the holding by the attraction of the first and second magnets 23b and 24b is released, no force is applied from the pushing piece 22 to the articles P arranged in the article guiding groove 3.

From the state shown in FIG.
When it is rotated by °, the second arm 2 is rotated by the rotation of the cam 25.
The lower end portion of No. 4 is pulled leftward by the attraction force of the third magnet 24c, and the second arm 24 swings clockwise around the pivotal support portion. During the swing of the second arm 24, the second magnet 24b of the second arm 24 and the first arm 23
The first magnet 23b is attracted to the first arm 23 and the first arm 23 is moved to the second arm.
It is held again on the frame 24 side and returns to its original position.

As described above, in the above embodiment, when the article guide groove 3 is filled with the article P and the extruding piece 22 cannot move forward, the first and second extruding pieces 22 have a high resistance. The holding of the first arm 23 by the attraction of the second magnets 23b and 24b is released, and the first arm 23 is moved to the second
Since it is separated from the arm 24, the stroke required for extrusion can be effectively absorbed, and the force exerted by the extrusion piece 22 on the article P in the article guide groove 3 is eliminated, and the article is removed. There is an advantage that the clogging and damage of P can be surely prevented.

In the above embodiment, a magnet is used as a means for holding the first arm on the second arm side, but an adhesive or tape-shaped fastener may be used as long as it has the same function. Others such as the above may be substituted. Further, although the contact between the second arm and the cam is held by the attraction force of the magnet, the second arm is urged toward the cam side by using a spring material or is guided. You may make it ensure a contact state by.

12 to 17 show another embodiment of the pushing means, FIG. 12 is a perspective view of the pushing means, and FIG.
Is a cross-sectional view of the main part of the pushing means, and FIGS. 14 to 17 are operation explanatory views.

Extrusion means 31 shown in FIGS. 12 and 13
Is an extrusion arm 32 for extruding an article and a drive arm 3
3, a cam 34 for advancing and retracting the drive arm, and a motor 35 for driving the cam.

The extruding arm 32 is in the form of a tapered flat plate, and an operating pin 32a made of a ferromagnetic metal and having a circular cross section is projectingly provided on the upper surface of the rear end. The push-out arm 32 is the push-out piece guide groove 4 of the apparatus main body 1 described above.
It is slidably arranged on.

The drive arm 33 has a flat plate shape and has an elongated hole 33a extending from the front end to the intermediate portion.
An operation pin 32a of an extrusion arm 32 is slidably and rotatably engaged with 3a. Further, a magnet 33b is attached to the front end of the drive arm 33 from the front end of the elongated hole 33a with a magnetic force provided therebetween. That is, the extrusion arm 3
2 and the drive arm 33 include an operation pin 32a and a magnet 33b.
Is held so as to be rotatable with a predetermined holding force associated with the suction force.

The cam 34 is constructed by attaching an eccentric shaft 34a to a disc, and the drive arm 33 is attached to the eccentric shaft 34a.
The rear end of the rear is pivotally supported.

A speed reducer 35a is attached to the motor 35, and the center of the cam 34 is connected to the output shaft of the speed reducer 35a.

The extruding means 31 is used in place of the extruding means 21 of the article supply device described above. When the motor 15 of the pushing means 31 is operated to rotate the cam 34 in a predetermined direction, the rotational movement of the cam 34 is converted into a linear movement by the drive arm 33 as shown in FIG.
The frame 32 moves forward or backward in the pushing piece guide groove 4. Here, the pushing arm 32 makes one reciprocation by one rotation of the cam 34, and at the time of forward movement, the lowest article in the magazine 11 is pushed into the article guide groove 3.

When the inside of the article guide groove 3 is filled with the article due to a defective take-out or the like and the push-out arm 32 cannot move forward, as shown in FIG. 15 and FIG.
A high resistance is applied to the forward movement of the arm 32, and at the same time, a force exceeding the holding force due to the attraction of the magnet 33b acts on the pushing arm 23 to release the holding of the operating pin 32a, so that the operating pin 32a is driven. And the extrusion arm 32 remains at the same position by retracting along the elongated hole 33a. That is, when the holding by the attraction of the magnet 33b is released, no force is applied from the pushing arm 32 to the articles P arranged in the article guiding groove 3.

As described above, even by the above-mentioned pushing means 31, the inside of the article guide groove 3 is filled with the article P, and the pushing-out area is increased.
When the arm 32 cannot move forward, the holding of the operating pin 32a due to the attraction of the magnet 33b is released when the pushing arm 32 has a high resistance, and the pushing arm 32 can be left at the same position. As a result, the stroke required for extrusion can be effectively absorbed in the same manner as the extrusion means 21 described above, and the extrusion arm 32 can be used to convey the article P.
There is an advantage that the clogging and damage of the article P can be surely prevented by eliminating the force applied to the article P.

In the pushing means, the magnet is driven by the magnet.
Although attached to the front end of the slot, the magnet may be provided at the front end of the slot. Also, the means for holding the operation pin at the front end of the long hole may be an adhesive or tape if it has the same function.
Other fasteners such as zip fasteners may be used instead.

[0053]

As described in detail above, according to the article supply apparatus of the first aspect, when the inside of the article guide groove is full of articles and the pushing portion of the first arm cannot move forward, When a high resistance is applied to the pushing portion, the holding of the first arm by the holding means is released, and the first arm is moved to the second arm.
The stroke required for extrusion can be effectively absorbed, and the force exerted on the article in the article guide groove from the extrusion section is eliminated, ensuring that the article is not clogged or damaged. In addition, there is an advantage that can be prevented in claim 2
According to the above-described article supply apparatus, when the article P is filled in the article guide groove and the extrusion arm cannot move forward, the operation pin by the holding means at the time when high resistance is applied to the extrusion arm. The holding of the extrusion arm is released so that the extrusion arm 32 can be left in the same position, so that the stroke required for the extrusion can be effectively absorbed, and the article can be absorbed from the extrusion arm. There is an advantage that the force can be completely eliminated, and the clogging and damage of the article can be surely prevented.

[Brief description of drawings]

FIG. 1 is a side view of an article supply device showing a magazine separated state.

FIG. 2 is a partially cutaway side view of the article supply device showing a magazine attached state.

FIG. 3 is a partial perspective view of the apparatus main body.

FIG. 4 is a perspective view of the magazine

FIG. 5 is a perspective view of the magazine showing a lid plate opened state.

FIG. 6 is a perspective view of the pushing means.

[Fig. 7] Operation explanatory diagram

[Figure 8] Operation explanatory diagram

[Fig. 9] Operation explanatory diagram

FIG. 10 is an operation explanatory diagram

FIG. 11 is a schematic side view showing a conventional article supply device.

FIG. 12 is a perspective view showing another embodiment of the pushing means.

FIG. 13 is a cross-sectional view of the main part of the pushing means.

FIG. 14 is an operation explanatory diagram

FIG. 15 is an operation explanatory diagram

FIG. 16 is an operation explanatory diagram

[Explanation of symbols]

3 ... Article guide groove, 11 ... Magazine, 21 ... Extrusion means,
22 ... Extruded piece, 23 ... First arm, 24 ... Second arm
, 23b, 24b ... First and second magnets, 25 ... Cam, 2
6 ... Motor, 31 ... Extrusion means, 32 ... Extrusion arm,
32a ... operation pin, 33 ... driving arm, 33a ... oblong hole,
33b ... Magnet, 34 ... Cam, 35 ... Motor, P ... Article.

Claims (2)

[Scope of utility model registration request] 1. An article storage part capable of stacking and storing rectangular articles, an extrusion means for extruding the lowest article stored in the article storage part from the article storage part, and guiding the extruded article in a predetermined direction. In the article supply device having the article guide groove, the pushing means can swing the first arm having the pushing portion at one end and the other end of the first arm toward one end. The second arm, which is supported and rotatably supported at the substantially central portion thereof, linearly holds the first arm and the second arm with a predetermined holding force, and during the extrusion process. When a force exceeding the holding force is applied, the holding means is capable of releasing the holding, a cam for contacting the other end of the second arm to swing the second arm, and a cam for moving the cam in a predetermined direction. An article supply device comprising: a drive source that is rotationally driven. 2. An article storage unit capable of stacking and storing rectangular articles, an extrusion means for extruding the lowest article stored in the article storage section from the article storage unit, and guiding the extruded articles in a predetermined direction. In the article supply device having the article guide groove, the pushing means is provided with a pushing arm having an operation pin at a rear end and an elongated hole with which the operation pin is slidably and rotatably engaged. The drive arm and the holding means for holding the operation pin at the front end of the elongated hole and capable of releasing the holding force when a force exceeding the holding force is applied during the pushing process, and the drive arm.
An article supply device, comprising: a cam that rotatably supports a rear end portion of a cam to move a drive arm forward and backward; and a drive source that rotationally drives the cam in a predetermined direction.