JPH0786795A - Component supply unit - Google Patents

Abstract

PURPOSE:To provide a component supply unit which can surely send and supply component at a high speed, without using pressure sending air. CONSTITUTION:A bulk case 3 is mounted on a main body 1. A component feeding route 4 is formed from the bulk case 3 to a component feeding portion 5 of the tip end portion of the main body 1. The lower surface of the component feeding route 4 is constituted of a conveyer belt 6, which is articulated by a feed lever 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply unit for supplying electronic components, particularly chip components, to a component mounter or the like.

[0002]

2. Description of the Related Art Recently, a component supply unit for supplying the components at high speed has been indispensable for a mounter for mounting electronic components on a printed circuit board. FIG. 8 shows a general component mounter 100 and a component supply unit 101. The component mounter 100 includes a mounting head unit 102, a nozzle 103 for sucking a chip component, an XY table 104, and a printed circuit board 105. On the other hand, the component supply unit 101 is configured such that the tip thereof is configured as a component supply 106, and the feed lever 10 that delivers the component to the component supply unit 106.
7, a component sending unit 108. The component supply unit 101 is moved by a table 109 to a required position of the component mounter 100, and an operating mechanism 110 that operates the feed lever 107 at this required position is provided. Although not shown in the drawing, a large number of the component supply units 101 are provided to supply different types of electronic components.

By the way, the component supply unit 101 is classified into a component tape feeding type that accommodates the components and a chute type that ejects the components from a bulk case that accommodates the components. The former component tape feeding type component supply unit 101
As shown in FIGS. 9 and 10, a is a so-called frame feed of the tape 111 in which the parts are accommodated in the pocket portion by the operation of the feed lever 107 from the reel 112, and the cover film 113 covering the parts is wound on the take-up reel 114. Part 11 exposed at the tip part supply section
5 is sucked by the nozzle 103. In addition,
In the figure, reference numeral 116 is a shutter, and 117 is a component push-up pin. This component tape feeding type component supply unit 10
1a requires a component tape, is not economical, and
It is necessary to carry out the work of accommodating the parts in the parts tape and the work of aligning other parts. Therefore, the latter type of chute type, which sends out parts from the bulk case, is receiving attention.

This chute type component supply unit is shown in FIG.
1 is configured as shown in the schematic diagram. That is, a bulk case 119 in which a large number of components 118 are randomly accommodated is attached to the component supply unit 101b, and air is sent from the bulk case 119 to the component supply unit at the tip. Although the component push-up pin 117 is shown in the drawing, the component supply unit 10
The component push-up pin 117 remains because 1b is a component tape feeding type.

The bulk case 119 is specifically shown in FIG.
Shoot slit 12 using air as shown in 2
Although the component 118 is sent out from 0, the first air supply port 121 that blows air in the direction of sending the component 118 and the second air supply port 122 that blows air so that the part 118 is not blocked at the entrance of the chute slit 120. When,
A third air supply port 123 for blowing air is provided so that the parts 118 inside the case do not overlap closely.

Further, as shown in FIG. 13, a rotor 125 having a plurality of component holders 124 is provided in the component supply unit at the tip of the component supply unit 101b, and this is synchronized with the operation of the feed lever by a ratchet mechanism 126. The components are continuously rotated and separated, and the components that are continuously fed are separated and held one by one so as to be used for suction of the nozzle.

[0007]

A chute type component supply unit 101 for feeding components from the bulk case described above.
Although b has an advantage over the component tape feeding type, it requires an air source in the direction of constantly feeding the components, and requires a large air source, resulting in poor efficiency. Air is blown in to align the parts.
In high-speed feeding of 1 per 4 seconds, the takt followability was poor, and the nozzle was often vacuum-adsorbed. Further, the rotor 125, which holds the components separately and independently, is also difficult to hold reliably, which poses a problem of smooth component supply to the component mounter.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a chute type parts supply unit using a bulk case which does not require a large air source and can supply parts accurately. .

[0009]

In order to achieve the above-mentioned object, a component supply unit of the present invention has a bulk case mounted on a main body and has a component feed path from the bulk case to a component supply section of the main body. The component feeding path has a lower surface made of a conveyor belt, and the conveyor belt is configured to be articulated by a feed lever.

[0010]

In the above structure, the parts coming out of the bulk case are guided to the parts feeding path, but in the parts feeding path, the parts are forcibly sent to the parts feeding section by the conveyor belt.
Therefore, it is possible to reliably supply the components without using the component pressure-feeding air.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A component supply unit according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic structure of a component supply unit according to an embodiment of the present invention, in which a cassette type bulk case 3 accommodating a component 2 is mounted on a main body 1 and a slit-shaped feed of the component 2 is provided. The supply path 4 leads from the bulk case 3 part to the component supply part 5 at the tip of the main body 1. The lower surface of the feeding path 4 is constituted by an endless conveyor belt 6, and therefore the parts 2 in the feeding path 4 are to be conveyed by the conveyor belt 6. The conveyor belt 6 is wound around two rotating wheels 7 and 8, and one rotating wheel 7 is articulated by a lever 10 driven by the operation of a feed lever 9 and a ratchet mechanism 11, and the conveyor belt 6 is articulated. It is like this. A shutter 12 is provided in the component supply section 5 at the tip of the main body 1, and a stopper 1 corresponding to the tip side thereof.
3, the shutter 12 is slid backward and the stopper 13 is slid forward in synchronization with the operation of the feed lever 9 by a second lever 14 provided on the lever 10. In addition, the feeding path 4
An air blow-in port 15 is communicated with the inlet of the. The direction of the air blowing port 15 is such that the parts reaching the inlet part overlap.
Facing slightly rearward so as to eliminate clogging. Although not shown in FIG. 1, the air flow path 1 reaching the blow-in port 15
6 is provided with a valve, which is opened in synchronization with the operation of the feed lever 9. This air channel 1
In this embodiment, air is sent to No. 6 by utilizing a component push-up pin 17 formed in a pipe shape in this embodiment. Since the component supply unit of this embodiment supplies components by a bulk case, the component push-up pin 17 used when using the component tape does not function as intended. In the figure, 18 is an operating mechanism, and 19 is a nozzle.

FIG. 2 shows the bulk case 3 having the above structure.
And the feeding path 4, the conveyor belt 6 and the air blowing port 15
The related structure of is shown. 3 and 4 show the related structure of the shutter 12 and the stopper 13 in the above structure.

In the structure shown in FIGS. 1 to 4, when the component supply unit is moved to a desired position of the component mounter, its feed lever 9 is pushed. This feed lever 9
By the operation of, the conveyor belt 6 is moved by a distance for sending out one component. From the bulk case 3, the parts 2 are aligned and placed on the upper surface of the conveyor belt 6 facing the feeding path 4, and therefore, the parts 2 are delivered one by one. The components 2 are aligned by the air blown from the air blowing port 15 at the entrance of the feeding path 4 without overlapping. In the component supply unit 5, the most advanced component 2 is adsorbed by the nozzle 19 and transferred to the component mounter.
Since the shutter 12 moves backward and the stopper 13 moves forward during the operation of, the removal of the component 2 by the nozzle 19 is ensured.

As described above, the component supply unit of this embodiment is configured to convey the component 2 from the bulk case 3 by the conveyor belt 6, so that the component 2 can be conveyed more reliably than the conventional air pushing type. . Moreover, since the conveyor belt 6 moves in synchronism with the operation of the feed lever 9,
Can be delivered to the component supply 5 one by one and no special power source for the conveyor belt 6 is required. Further, the air blown into the inlet of the feeding path 4 is not for sending out the component 2 and is for preventing clogging or overlapping of the component 2, and therefore it is not necessary to blow it continuously.
Moreover, in this embodiment, the air is blown intermittently in synchronization with the operation of the feed lever 9, so that the air source can be made small. Further, in this embodiment, the pipe-shaped component push-up pin 17 is used for introducing air, existing members can be used, and when the multiple component supply units are individually moved to the required positions, the movement thereof is possible. Since it is only necessary to connect the air feed portion to the component push-up pin 17 of the component supply unit, the air piping is simplified as compared with the conventional one in which the air piping is connected to each of the multiple component supply units. Will be done.

In the component supply unit 5 at the tip of the component supply unit, the shutter 12 and the stopper 13 slide in synchronization with the operation of the feed lever 9, and the nozzle 1
It is possible to easily take out the component 2 by means of 9, and it is possible to smoothly and surely supply the component by these series of operations.

FIG. 5 shows a component supply unit according to another embodiment of the present invention. The feature of this embodiment is that in the component supply unit for supplying components from the bulk case,
It has a self-contained air source. That is, as shown in the figure, an air pump 20 is installed in the main body 1, and an operating shaft 21 of the air pump 20 is connected to a feed lever 9. The discharge part of the air pump 20 is connected to the air blowing port 15 at the inlet of the feeding path 4 by a pipe 22. The valve 2 is provided in the middle of the pipe 22.
3 is provided and is opened and closed by the operation of the feed lever 9. In the figure, numeral 3 is a bulk case, numeral 6 is a conveyor belt, and numeral 19 is a nozzle. Since these have the same configurations as those of the above-mentioned embodiment, their explanations are omitted.

In this embodiment, the feed lever 9
The air pump 20 carries out air pressure feeding operation by activating. Since the valve 23 is opened when the feed lever 9 is operated, the compressed air is supplied to the pipe 22.
This is to prevent overlapping of parts sent to the air blowing port 15 and sent from the bulk case 3 and clogging at the entrance of the feeding path 4.

As described above, since the component supply unit of this embodiment self-stores the air source, it is unnecessary to carry out the troublesome work of connecting the moving body pipe as in the conventional or the above-described embodiments. Of course, the air source is the air pump 20.
Moreover, since it is used for aligning the parts, a small air pump can be sufficiently put into practical use.

FIG. 6 also shows a component supply unit according to another embodiment of the present invention. The feature of this embodiment is that parts can be fed from a bulk case without air for feeding. That is, as shown in the figure, a sharp component take-out pipe 24 is inserted into the component outlet 3a below the bulk case 3 mounted on the main body 1 by cutting the tip in an oblique shape. The lower end of the component take-out pipe 24 is inserted into the feeding path 4 and is biased upward by the spring 25. The component take-out pipe 24 is connected to the feed lever 9 by levers 26, 27, 28, and the feed lever 9
When it is operated, it moves downward against the spring 25. In the figure, 2 is a component, 6 is a conveyor belt, and 19
Is a nozzle, and these have the same configurations as those of the above-mentioned embodiment, and therefore their explanations are omitted.

In the structure of this embodiment, when the feed lever 9 is operated, the component take-out pipe 24 moves downward. Moreover, when the operation of the feed lever 9 is stopped, the component take-out pipe 2
4 moves up. Due to the reciprocating motion of the parts take-out pipe 24, the parts in the bulk case 3 are moved to the parts take-out pipe 24.
Enters the part extraction pipe 24 through the oblique opening of
It is sent to the feeding path 4.

In the component supply unit of this embodiment, the components 2 in the bulk case 3 can be sequentially taken out by reciprocating the component take-out pipe 24 as described above. No air source is required, and since the power source is the feed lever 9, no special power source is required. A cylindrical tip is preferable as the component used here.

FIG. 7 also shows a component supply unit according to an embodiment of the present invention. The feature of the present embodiment is that the bulk case of several types can be used together. That is, as shown in the figure, the bulk case unit 30 mounted on the main body 1 is detachably configured. The other feed levers 9, the conveyor belt 6 and the like are configured in the same manner as in the above-described embodiments.

In general, as electronic parts, there are a rectangular chip and a cylindrical chip in shape in addition to a chip resistor and a chip capacitor. When supplying these different types of parts, the bulk case unit 3 is used because of the relationship of sending out the parts.
The fine structure of 0 is naturally different. For example, in the case of a cylindrical tip, it also has a structure in which the component extraction pipe shown in FIG. 6 is used.

In order to cope with such a use, the present embodiment makes the bulk case unit 30 detachable from the main body 1. Therefore, the bulk case unit 30 is simply converted according to the type of parts to be supplied. Yes, and convenient to use.

As described above, the component supply unit of each embodiment can supply components at high speed and accurately, and also can realize the reduction of the air source and the simplification of the piping. This makes it easy to take out parts, and can supply a wide variety of parts.

[0027]

As is apparent from the description of each of the above-described embodiments, the component supply unit of the present invention is provided with the conveyor belt and can accurately and accurately deliver the components from the bulk case, and the conveyor belt can be used. By using it, the air for pumping parts can be omitted and the air source can be made smaller. Also, the air supply means can be simplified, the parts can be easily taken out from the nozzle, and it can also be used to supply a wide variety of parts. It has the effect of being able to deal with it and has a great industrial effect.

[Brief description of drawings]

FIG. 1 is a schematic side view of a component supply unit according to an embodiment of the present invention.

FIG. 2 is a sectional view of a bulk case and a transfer section of the same component supply unit.

FIG. 3 is a schematic side view of a component supply unit of the component supply unit.

FIG. 4 is a perspective view of the component supply unit.

FIG. 5 is a schematic sectional side view of a component supply unit according to another embodiment of the present invention.

FIG. 6 is a schematic sectional side view of a component supply unit according to another embodiment of the present invention.

FIG. 7 is a schematic sectional side view of a component supply unit according to another embodiment of the present invention.

FIG. 8 is a perspective view of a component mounter and a component supply unit.

FIG. 9 is a perspective view of a conventional component supply unit.

FIG. 10 is a perspective view of a main part of the component supply unit.

FIG. 11 is a perspective view of another conventional component supply unit.

FIG. 12 is a cross-sectional view of the main parts of the component supply unit.

FIG. 13 is a perspective view of a main part of another conventional component supply unit.

[Explanation of symbols]

 1 Main Body 2 Parts 3 Bulk Case 4 Feeding Channel 5 Parts Supplying Section 6 Conveyor Belt 7 Rotating Wheel 8 Rotating Wheel 9 Feed Lever 10 Lever 11 Ratchet Mechanism 12 Shutter 13 Stopper 14 Second Lever 15 Air Inlet 16 Air Flow 17 Parts push-up pin 18 Operating mechanism 19 Nozzle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Naito 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (11)

[Claims] 1. A main body, a bulk case mounted on the main body, a component feeding path extending from the bulk case to a component supply section of the main body, and a lower surface of the component feeding path, which is articulated by a feed lever. A component supply unit consisting of a conveyor belt. 2. The component supply unit according to claim 1, wherein the bulk case comprises a detachable cassette. 3. The component supply unit according to claim 1, wherein a shutter and a stopper are slidably provided in the component supply unit, and the shutter and the stopper are moved open in synchronization with the operation of the feed lever. 4. The component supply unit according to claim 1, wherein an air blow port directed in the non-feed direction is provided at the inlet of the component supply path. 5. The component supply unit according to claim 4, wherein a pipe-shaped component push-up pin is connected to the air blowing port as an air feeding path. 6. The component supply unit according to claim 4, wherein a valve is provided in an air feeding path reaching the air blowing port, and the valve is opened by operating a feed lever. 7. A main body, a bulk case mounted on the main body, a component feeding path extending from the bulk case to a component supply section of the main body, and a lower surface of the component feeding path, which is articulated by a feed lever. A component supply unit including a transport belt, an air blowing port opened at the inlet of the component feeding path, and an air pump having a discharge side connected to the air blowing port and performing a pressure feeding operation by a feed lever. 8. The component supply unit according to claim 7, wherein the air blowing port faces the non-pressure feeding direction. 9. The component supply unit according to claim 7, wherein a valve that opens in synchronization with the operation of the feed lever is provided in the air flow path between the air blowing port and the air pump. 10. A main body, a bulk case mounted on the main body, a component feeding path extending from the bulk case to a component supply section of the main body, and a lower surface of the component feeding path, which is articulated by a feed lever. A component supply unit including a conveyor belt and a component take-out pipe, one end of which is inserted into a component feed path and the other end of which is inserted into a lower part outlet of a bulk case, and which reciprocates by the operation of a feed lever. 11. A main body provided with a feed lever, a conveyor belt which is partly located at an upper part and which is articulated by the operation of the feed lever, a plurality of parts forming a parts feeding path facing the bulk case and the conveyor belt. The component supply unit that includes the bulk case unit of, and can be attached to and detached from the main body by selecting each bulk case unit.