JPH0738289A - Automatically supplying device for electronic component - Google Patents

Abstract

PURPOSE:To constitute a safe mechanism which can feed air to a bellows phragm for preventing the lid plate part of a storage case from being lifted without any erroneous operation with a simple mechanism by feeding pressure- feed air which sends electronic components from a storage groove to a component feed port. CONSTITUTION:When the storage case of electronic components is set to a normal position of a holder part 10, it is pressed and displaced by a case body 1, thus assembling an air valve 35 with a knob 34 for drive which is pressed and displaced by a case body 1 and opens an air feed-in path 36 of a bellows phragm to an air supply system 30 for the bellows diaphragm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises an electronic component storage case in which a plurality of electronic components are aligned and accommodated in a spiral storage groove, and compressed air is sent to the electronic component storage groove to store the electronic components. The present invention relates to an electronic component automatic supply device that feeds an electronic component from a component delivery port of a case to a pick-up position of an electronic component where a mounting head moves up and down.

[0002]

2. Description of the Related Art As a storage case for the electronic parts described above, as shown in FIG. 8, a disk-shaped case body 1 is provided, and a storage groove 2 for the electronic parts is provided inside the case body 1 in a spiral shape. Has been proposed (Actual Kaihei 2-11
1682). In this electronic component storage case, for convenience of providing the electronic component storage groove 2 inside the case body 1, as shown in FIG. 9, the case body 1 is formed of a substrate portion 1a and a lid plate portion 1b to store electronic components. It is assembled by providing the groove 2 on the inner side surface of the substrate portion 1a and fitting and fixing the lid plate portion 1b.

In this electronic component storage case, as shown in FIG. 10, the air supply holes 4a, 4b ... Are provided on the substrate in order to send the compressed air into the electronic component storage groove 2 and to send it out of the case from the component outlet 3. From the outer surface of the portion 1a to the storage groove 2
It is provided to communicate with. Further, as shown in FIG. 8, air discharge holes 5a, 5b, ... Are communicated from the storage groove 2 to the outer surface of the lid plate portion 1b in order to discharge the compressed air sent into the storage groove 2 of the electronic component to the outside of the case. Is provided.

This electronic component storage case is connected to an air supply system for the electronic component storage groove 2 by being installed upright on the holder portion of the apparatus main body, and compressed air is supplied from the air supply system to the inside of the storage groove 2. Sent intermittently to
The electronic component automatic supply device is provided so as to deliver the electronic component from the component delivery port 3 of the storage case to the pick-up position of the electronic component where the mounting head moves up and down.

In the case for storing the electronic parts, the cover plate portion 1b is lifted from the substrate portion 1a due to the sending of the pressure-feeding air into the storage groove for the electronic parts, which causes air leakage and misalignment of the parts. There is fear. The lid plate portion 1b
In order to prevent the floating of the holder, it has been proposed to provide an air bag-shaped bellows inside the holder and support the case body by pushing it from the cover plate portion 1b by the holder (Japanese Patent Laid-Open No. 4-157800).

However, when the bellows is installed, the bellows are damaged if the air supply system for the bellows is accidentally opened in a state where the electronic component storage case is not set, and the air supply system is opened. There is a concern that a situation such as not being able to set the electronic component storage case to the normal position may occur.

[0007]

SUMMARY OF THE INVENTION The present invention is constructed in a safe and simple mechanism so that the air supply system for the bellows can be opened in synchronism with the case where the electronic component storage case is set in the normal position of the holder. It is an object of the present invention to provide an automatic feeder for electronic components.

[0008]

In the automatic supplying apparatus for electronic parts according to the first aspect of the present invention, when the storage case for the electronic parts is set at the normal position of the holder, the case body is pressed and displaced. It is configured by installing an air valve equipped with a driving knob that opens the air feeding path of the bellows to the air supply system for the bellows.

According to a second aspect of the present invention, there is provided an electronic component automatic supply device in which an air supply system for the bellows is connected to an air supply source common to the air supply system for the storage groove of the electronic component. .

[0010]

In the automatic electronic device feeder according to the first aspect of the present invention, the drive knob of the air valve is not biased by the case body as long as the electronic component storage case is not set to the normal position of the holder portion. Therefore, the air feeding path of belofram is not opened by the air valve. Therefore, the malfunction of the air supply system for the bellows can be prevented, the damage of the bellowsram and the incomplete setting of the storage case can be surely prevented, and the air valve having the drive knob can be simply installed in the air supply system for the bellows. Because it is good, it can prevent the complexity of the air supply system and the rise in equipment costs.

In the electronic component automatic supply device according to the second aspect of the present invention, the air valve described above is provided in the air supply system for the bellows, so that the air supply source is common to the air supply system for the storage groove of the electronic component. Even if it is connected to, the air supply system for the storage groove of the electronic component can be controlled separately, so that the air supply system can be simplified as a whole.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIGS.
Is an overall view of the automatic electronic component feeder,
The apparatus main body is a holder portion 10 for standing up an electronic component storage case made of a disc-shaped case main body 1, an air supply system 20 for an electronic component storage groove, and an air supply for a bellowram having a configuration described later. System 3
0 and a component feed guide unit 40 that moves an electronic component delivered from the component delivery port of the storage case to the outside of the case to a pick-up position of the electronic component at which the mounting head H moves up and down.

In the electronic component automatic feeder,
As shown in FIG. 2, the electronic component storage case for sending out the chip-shaped electronic components aligned and stored in the spiral storage groove 2 to the outside of the case from the component outlet 3 opened on the upper side of the case body 1 is the holder portion 10. Equipped to stand. The case main body 1 is formed by fitting and fixing the base plate portion 1a and the cover plate portion 1b like the well-known case, and is air blown so as to be visible from the inside of the cover plate formed of the transparent plastic material inside. The insertion holes 4a, 4b ... Are provided in the substrate portion 1a. In addition, the board portion 1b has an air discharge hole 5 through which compressed air for electronic components is discharged from the storage groove 2 to the outside of the case.
a, 5b ... Are provided. In addition, a cutout portion 6 for holding the electronic component storage case by an autochanger chuck for automatically exchanging an empty case and a component-containing case.
a and 6b are provided near the upper and lower corners of the case body 1.

As shown in FIG. 3, the holder portion 10 has a frame edge portion 11 in which a storage case for electronic components can be inserted and inserted and a side plate portion fixed to both sides via the frame edge portion 11. It is formed of 12 and 13. The frame edge portion 11 is formed by removing a portion corresponding to the above-described component delivery port 3 of the storage case and a portion through which an operation knob of an air valve described later enters and leaves. In addition, the side plate portion 12,
Reference numeral 13 denotes an air feeding hole 4a, 4 of the storage case described above.
b, and air discharge holes 5a, 5b ... are provided with air supply holes 14 and air discharge holes 15, respectively.

Inside the holder portion 10, as shown in FIGS. 3 and 4, an air bag-shaped bellows drum 50 is provided. The bellows 50 is integrally joined with a tension sheet portion formed of a composite sheet such as a polyethylene sheet 52 and a compression rubber 53 and a base sheet portion 54 such as an acrylic sheet via a packing 51 formed in a frame edge shape such as urethane. It is formed in a bag shape. In this belofram 50, the base sheet 54 is adhered and fixed to the inner surface side of the side plate portion 13, and the tension sheet portions 52 and 53 are bulged by blowing air, whereby the holder portion 1
It is provided so that the case body 1 of the storage case set to 0 is pushed from the lid plate side and supported. Although not shown in the drawing, the packing 51
Air supply holes for sending air are provided in the internal space between the tension sheet portions 52, 53 and the base sheet portion 54 formed through the. Further, in order to avoid blocking the air discharge holes 5a, 5b ... Of the storage case, corresponding portions of the corresponding portions are notched.

An air supply system 2 for the storage groove of electronic parts
As shown in FIG. 1, 0 has a main pipe 22 continuous from an air supply source 21. From the main pipe 22, a main pressure valve 23 such as a ball valve and air pipes 24, 25 are used to feed air for electronic parts. Air supply passages 26 and 27 for supplying air to the air inlet holes 4a, 4b ... Of the storage case are provided. The air supply passages 26, 27 are fixed to the air supply openings 14 of the holder 10 so that the pressure-supplied air of the electronic component is sent to the storage groove 2 from the air supply holes 4a, 4b of the storage case. Air supply means such as a coupling is provided on the tip side.

The air supply system 20 for the electronic component storage groove is branched by a main switching valve 28 so that an air supply system 30 for the bellows is supplied from an air supply source 21 common to the air supply system 20 for the electronic component storage groove. Equipped to extend. The air supply system 30 for the bellows connects an air pipe 31 to an intermediate switching valve 32, connects an air pipe 33 drawn out from the intermediate switching valve 32 to an air valve 35 equipped with a drive knob 34, and further, The air pipe 36 drawn out from the air valve 35 is connected to the air supply hole 3 of the bellows drum 50.
An air supply passage is formed by connecting to 7.

The air valve 35 having the driving knob 34 is
As shown in FIGS. 1 and 5, the drive knob 34 is exposed to the inside of the holder 10 from the vicinity of the lower corner on the back side of the holder 10 in which a storage case for electronic components is set. Is equipped with. The air valve 35 opens the air feed path by the air pipe 36 when the housing for the electronic parts is set at the normal position of the holder portion 10 and the drive knob 34 is biased by the case body 1. On the other hand, the storage case for electronic parts is the holder part
The drive knob 34 is provided as a control valve that closes the air feeding path by the air pipe 36 when the pressing by the case body 1 is released.

In the component feed guide portion 40, a component inlet 41a aligned with the component outlet 3 of the storage case, a component slide-down hole 41b drawing a gentle downward slope curve from the component inlet 41a, and a plurality of electronic components are provided. A chute feed hole 4 in which a linear component alignment hole 41c for aligning and accommodating in a row and a component outlet 41d located at the final end of the component alignment hole 41c are continuous.
1 is provided. From this chute feed hole 41,
By using the open surface of the component feed guide portion 40 located on the extension line of the component outlet 41d as a base, a picking-out place of the electronic component by the mounting head H is provided.

An air hole 42 is provided in the component aligning hole 41c of the chute feed hole 41 so as to communicate obliquely from the side surface of the component feed guide portion 40 toward the component outlet 41d. In addition to this, an air hole 43 communicating vertically from the side surface of the component feed guide portion 40 is provided in the component slide-down hole 41b. The air supply system 60 for each path connects the air pipe 61 drawn out from the intermediate switching valve 32 to the air switching valve 62 in the chute feed hole 41, and the two air pipes drawn out from the air switching valve 62. It is formed by connecting 63 and 64 to the air hole 42 of the component alignment hole 41c and the air hole 43 of the component sliding hole 41b, respectively.

The above-mentioned main switching valve 28 is provided so as to open the air supply system 20 to the storage path for the electronic parts whenever necessary by the control of the source pressure valve 23 by the control box 70. The intermediate switching valve 32 is closed by a link mechanism to be described later when necessary, and is opened so as to constantly supply air to the air pipe 33 of the bellows 50 following the air valve 35 having the drive knob 34 as shown in FIG. ing. Further, the intermediate switching valve 32 is opened so as to constantly supply the compressed air of the electronic component to the air hole 42 of the component alignment hole 41c via the air switching valve 62. The intermediate switching valve 32 is the valve rod 3.
2a is integrally formed with the valve body 32b, and the predetermined air supply system can be constantly released or closed by elastically pressing the valve body 32b with the compression spring 32c interposed therein. ing.
The air switching valve 62 sends the pressure-feeding air of the electronic component to the component alignment hole 41c according to a command from a component presence / absence sensor described later.
It is equipped to switch from the air hole 42 to the air hole 43 of the component slide-down hole 41b and feed it.

In the electronic component automatic supply device thus constructed, the source pressure valve 23 of the air supply system 20 is kept closed when the electronic component storage case is not set in the holder portion 10 of the main body of the device, and the air supply system 20 is closed. The air supply from the supply source 21 is stopped. When the storage case for the electronic components is set to the normal position of the holder portion 10, the driving knob 34 of the air valve 35 is pushed and displaced by the case body 1 so that the air valve 35 is fed to the bellows air 50. 36 is opened, and at the same time, the source pressure valve 23 opens the air supply passage in response to a command from the control box 70. By opening this source pressure valve 23, the air supply source 2
From 1, the air is sent to the air supply system 20 for the electronic component storage groove and the air supply system 30 for the bellows, respectively.

Air supply system 2 for receiving grooves for electronic parts
In 0, when the air from the air supply source 21 is received, the air feeding hole 4 of the storage case is used as the pressure feeding air for the electronic parts.
The components are intermittently fed from a, 4b, ... To the electronic component storage groove 2, and the electronic component is moved from the component delivery port 3 of the storage case to the component inlet 41a of the component delivery guide 40. In synchronism with the air feeding of the electronic parts, in the air supply system 30 for the bellows, the air valve 35 opens the air feeding path 36 of the bellows by the driving knob 34, and the air supply source 21
The air from the inside is sent into the inside of the bellows 50, and the case body 1 is pushed and supported from the cover plate side by the tension sheet portions 52 and 53 of the bellows 50. Therefore, the air can be completely prevented from being sent to the bellows drum 50 by a malfunction, so that a safe mechanism can be configured.
Further, when the storage case for the electronic parts is set to the normal position of the holder portion 10, the bellows 50 operates to push and support the case main body 1 from the lid plate side. Therefore, the storage case is not set properly or the lid plate portion floats. It is possible to reliably prevent the alignment disorder of the components and the air leakage due to the above.

The electronic components sent from the electronic component storage case to the component feed guide section 40 are delivered from the component outlet 41d of the chute feed hole 41 to the electronic component extraction position where the electronic component mounting head H moves up and down. . In the chute feed hole 41, a shutter 80 for opening and closing the component outlet 41d is provided by slidably supporting a holding plate 81 with the open surface of the component feed guide section 40 as a base. As shown in FIG. 7, the shutter 80 has a leg portion 82 protruding downward, and the leg portion 82 is inserted into a concave receiving groove 83 provided on the base surface of the component feed guide portion 40, and at the same time, the leg portion is provided. The compression spring 84 fitted between the receiving groove 82 and the receiving groove 83 elastically supports the compression spring 84, so that the component outlet 41d of the chute feed hole 41 is opened.
Is installed so that it is always closed. As shown in FIG. 1, the shutter 80 has a projecting pin 85 on its side portion, and the projecting pin 85 is pressed by a cam plate of a link mechanism to be described later to resist the compression spring 84 and shoot the feed hole. It is equipped to open the component outlet 41d of 41.

As shown in FIG. 1, the link mechanism 90 is provided with a standing plate 91 on the side of the component feed guide section 40.
The cam plate 92 is mounted on the plate surface of the standing plate 91 so as to be swingably rotatable. The cam plate 92 is aligned with the pressing operation shaft P mounted on the side of the mounting head H that moves up and down so that the cam plate 92 is positioned and pressed. A link bar 93 extending toward the equipment side of the shutter 80 and a link bar 94 extending toward the intermediate switching valve 32 of the chute feed hole 41 are attached to the cam plate 92 by bearing one end side. Has been.

A cam plate 95 having a projecting piece portion 95a that engages with the projecting pin 85 of the shutter 80 is connected to one of the link bars 93. In addition, a cam plate 96 that is in contact with the valve rod 23a that projects outward from the intermediate switching valve 32 is connected to the other link bar 94.
Each of these cam plates 95 and 96 is rotatably mounted on the lower portion of the component feed guide portion 40. A tension spring 97 is mounted between the cam plate 92 and the link bar 93 on one side. A stopper pin 98 is provided on the side surface of the cam plate 92 so as to engage with the link bar 93 so as to regulate the pulling position by the tension spring 97.

In the component feed guide portion 40, the component alignment hole 4
A component presence / absence sensor 99 for detecting the presence / absence of a component 1c is provided near the component outlet 41d of the chute feed hole 41. The component presence / absence sensor 99 is a photoelectric sensor, and when it detects that there is no component in the component alignment hole 41c, as a first step, the air switching valve 62 of the chute feed hole 41 is moved from the air hole 42 of the component alignment hole 41c to the component slide hole 41b. It is controlled to switch to the air hole 43.
After that, when the component presence / absence sensor 99 still does not detect the electronic component in the component alignment hole 41c, as a second step, the main switching valve 28 is controlled so as to send the compressed air of the electronic component into the storage groove 2 of the electronic component.

In this electronic component automatic supply device, initially, compressed air for the electronic component is sent from the main switching valve 28 into the storage groove 2 for the electronic component through the air supply passages 26 and 27. When a plurality of electronic components are fed into the chute feed holes 41 of the component feed guide section 40 along with the feeding of the pressure-fed air, the main switching valve 28 causes the control box 70 to move.
Is controlled to temporarily shut off the air supply passages 26 and 27. The electronic component sent into the chute feed hole 41 slides down inside the component slide-down hole 41b by its own weight, and moves from the linear component aligning hole 41c to which the compressed air of the electronic component is constantly fed to the component outlet 41d. From here, the mounting head H of the electronic component moves downward, and the chute feed hole 41
The electronic component sent from the component outlet 41d is picked up by sucking the electronic component at the tip of the nozzle.

As the mounting head H descends, the pressing operation shaft P mounted on the mounting head H side abuts and presses the cam plate 92, so that the mounting head H swings and rotates. When the cam plate 95 is oscillated and rotated via the link bar 93, the cam plate 9 is rotated.
When the projection piece 95a of No. 5 engages with the projection pin 85 of the shutter 80, the component outlet 41d of the chute feed hole 41
Open up. With the opening of the component outlet 41d, the electronic component is delivered from the component outlet 41d of the chute feed hole 41 to the component extraction position, and the mounting head H can suck the electronic component E. At the same time, the cam plate 96 connected to the cam plate 92 via the link bar 94 presses the valve rod 32a of the intermediate switching valve 32, and the valve body 32b formed integrally with the valve rod 32a is compressed by the compression spring 32.
The air pipe 63 of the air switching valve 62 for moving the compressed air of the electronic component to the component alignment hole 41c of the chute feed hole 41 is blocked by moving the compressed air of the electronic component.

When the mounting head H for the electronic component moves upward by sucking and picking the electronic component at the tip of the nozzle, the cam plate 93 is released from the contact and pressing by the pressing operation shaft P, and the link mechanism 90 is moved by the tension spring 97. Return to the whole. Along with this, the shutter 80 closes the component outlet 41d of the chute feed hole 41, and the intermediate switching valve 32 switches the air supply path so as to send the compressed air of the electronic component to the component alignment hole 41c of the chute feed hole 41. By repeating the operation, as shown in FIG. 7, the electronic component E moved to the component alignment hole 41c of the chute feed hole 41 is sent to the pick-up position of the electronic component by the mounting head H, and sequentially at the nozzle tip of the mounting head H. To be extracted.

Parts alignment hole 41 of this chute feed hole 41
When the remaining number of electronic components moved to c reaches a predetermined number from the component outlet 41d, the component presence / absence sensor 99 detects that there is no component in the component alignment hole 41c. In accordance with the detection, the air switching valve 62 of the chute feed hole 41 is operated by a command from the component presence / absence sensor 99, and the compressed air of the electronic component is fed from the air hole 42 of the component alignment hole 41c to the component sliding hole 41b.
To the air hole 43. By switching the valve 62, the compressed air of the electronic component is sent into the component sliding hole 41b. Therefore, even if the electronic component is caught on the inner surface of the component sliding hole 41b and remains, the component outlet 41d of the chute feeding hole 41 is reached. You can move smoothly.

The compressed air of the electronic parts is supplied to the parts sliding holes 4
If the presence / absence sensor 99 of the component does not detect the presence of the component after sending it into the inside of 1b, the compressed air of the electronic component is sent to the storage groove 2 of the electronic component by the command from the control box 70 as in the beginning. The component is controlled to be fed into the chute feed hole 41 of the component feed guide section 40 from the component delivery port 3 of the storage case. Since it is possible to set the feeding of the compressed air to the chute feed hole 41 with a small number of times including the control of the feeding of the compressed air to the storage groove of the electronic component, the component storage groove 2 of the storage case 2
It is possible to suppress the electronic components housed in the electronic component and the electronic components sliding down the chute feed hole 41 from colliding with each other with a small amount.

While the above operation is repeated, the bellows 50 presses and supports the storage case for the electronic parts mounted upright on the holder portion 10, so that air leakage and misalignment of parts due to the lid plate floating up. It never happens. Therefore, the automatic supply device for electronic components can stably deliver the electronic components.

In the above-described embodiment, an electronic component storage case in which the component outlet 3 is provided on the upper side of the case body 1 is used, and the electronic component is guided by the component feed guide portion 40 having the downwardly directed chute feed hole 41. As explained in the case of moving to the extraction position, a component feed hole is used that linearly extends from the component feed port of the storage case by using the electronic component storage case provided with the component feed port on the lower side of the case body. The present invention can also be applied to an electronic component automatic supply device provided with a feed guide unit.

[0035]

As described above, according to the automatic supply device for electronic parts according to the present invention, the air valve for the bellows is supplied to the air supply system for the bellows by simply assembling the air valve having the driving knob to the air supply system for the bellows. Since it is possible to reliably prevent malfunction of supply, it can be configured as a safe mechanism.Also, by always operating the bellows accurately, it is possible to prevent incomplete setting of the storage case and floating of the lid plate, and to supply electronic parts smoothly. it can.

[Brief description of drawings]

FIG. 1 is an explanatory view generally showing an electronic component automatic supply device according to the present invention.

FIG. 2 is an explanatory view showing a storage case of electronic components provided in the same apparatus from a lid plate side.

FIG. 3 is an explanatory view showing a holder portion and a bellowram portion of the apparatus in a developed state.

FIG. 4 is an explanatory diagram showing a cross section of a holder portion and a bellows portion of the apparatus.

FIG. 5 is an explanatory view showing, in an enlarged manner, an equipment portion of an air valve equipped with a drive knob equipped in the apparatus.

FIG. 6 is an explanatory view showing an enlarged cross section of an intermediate switching valve of the same device.

FIG. 7 is an explanatory view showing an enlarged shutter portion of the apparatus.

FIG. 8 is an explanatory diagram showing a storage case for electronic components according to a known example from the lid plate side.

FIG. 9 is an explanatory view showing the storage case in section.

FIG. 10 is an explanatory view showing the storage case from the substrate side.

[Explanation of symbols]

1 Case Body of Storage Case 2 Storage Groove for Electronic Parts 3 Parts Delivery Port of Storage Case 10 Holder 20 Air Supply System for Storage Groove of Electronic Parts 21 Air Supply Source 30 Air Supply System for Bellophram 34 Drive Knob 35 Air Valve 36 Air feeding path for belofram 50 Belofram H Electronic component mounting head

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuro Ito 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDC Corporation (72) Inventor Koji Kudo 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDC Within the corporation

Claims (2)

[Claims] 1. A storage case for electronic components, in which a plurality of electronic components are aligned and stored in a spiral storage groove, is set in a holder portion of an apparatus main body, and the case main body is provided in an air bag shape inside the holder portion. While supporting by pushing from the side with the bellows, the automatic feeding of the electronic components that sends the compressed air into the storage groove of the electronic components and sends the electronic components from the component delivery port of the storage case to the picking position of the electronic component that moves up and down the mounting head In the device, when the storage case of the electronic parts is set to the normal position of the holder part, an air valve equipped with a drive knob that is biased by the case body and opens the air feeding path of the bellows is supplied to the bellows. An automatic feeder for electronic components, which is installed in the system. 2. The automatic supply device for electronic parts according to claim 1, wherein the air supply system for the bellows is connected to an air supply source common to the air supply system for the storage groove for the electronic parts.