JPH09323820A - Bulk feeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply an article positively and rapidly. SOLUTION: A storage chamber 114, the first and second separating chambers 116, 118, and a supplying passage 76 are formed in a bulk feeder 12, an electronic part is separated by ejecting air from air ejecting holes 136, 138 for the first and second separating chambers, and the electronic part is fed to the outlet of the supplying passage 76 by ejecting air from air ejecting hole 140 of an inlet side. An outlet air ejecting hole 170 which includes a directional element toward the outlet side is formed in the vicinity of the outlet of the supplying passage 76, and an air vent hole is formed at a plate 152. A large amount of air which ejects from the outlet air ejecting hole 170 escapes from the air vent hole while flowing through the clearance between the supplying passage 76 and the electronic part, and feeds the electronic part in the vicinity of the outlet of the supplying passage 76 promptly. The electronic part at the head advances to a recessed part for taking out parts and is taken out by a part suction head 22 after pushing-up by a pushing-up member 196 and retreat of a cover 230.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulk feeder for feeding individually stacked articles one by one, and more particularly to ensuring or speeding up the feeding.

[0002]

2. Description of the Related Art In a bulk feeder, articles stacked in bulk are separated and sent one by one. One of the bulk feeders is (A) a storage chamber for storing articles to be supplied in bulk and discharging them from a discharge port, (B) a supply passage extending from an inlet to an outlet, and (C) the supply passage. And a storage device that is provided between the storage chamber and the storage chamber and that supplies the articles supplied from the discharge port of the storage chamber in a line to the inlet of the supply passage. The bulk feeder described in JP-A-62-280129 is one example. This bulk feeder supplies a leadless chip-less leadless electronic component to an electronic component adsorption device, and the separation device includes a first separation chamber and a second separation chamber smaller than a storage chamber, and a first separation chamber. A first separation air jet provided in the chamber and having a directional component toward the first separation chamber, and a second separation air provided at a position close to the inlet of the supply passage and having a directional component toward the second separation chamber It has an air ejection port and a feed air ejection port provided in a position close to the inlet of the supply passage and having a directional component toward the outlet. In this bulk feeder, the bottom surfaces of the accommodating chamber, the first and second separation chambers, and the supply passage are inclined so that the outlet side of the supply passage is positioned downward, and the electronic components in the accommodating chamber are gravitated by gravity. Move to the first separation chamber. A gate is provided between the accommodation chamber and the first separation chamber, and restricts movement of the electronic components accommodated in the accommodation chamber to the first separation chamber. The electronic components in the first separation chamber are blown away by the air jet from the first separation air ejection port and separated, and when some of the electronic components fall, the electronic components pass over the partition plate provided in the first separation chamber. Enter the second separation room. The electronic components in the second separation chamber are blown away and separated by the air ejected from the second separation air ejection port. The number of electronic components in the second separation chamber is small, and after separation, they fall and enter the supply passages one by one. The electronic components in the supply passage are sent to the component taking-out position following the outlet of the supply passage by the air jetted from the sending air jet outlet, and sucked by the electronic component suction device.

[0003]

However, this bulk feeder has a problem that it is difficult to increase the supply speed of electronic components. This is because it is difficult to increase the flow rate of air blown from the feed air jet port in order to increase the supply speed of electronic components. The air ejected from the feed air ejection port flows toward the outlet of the supply passage through the gap between the supply passage and the electronic component, but there is a considerable number of electronic components in the supply passage, and
Since the gap between the supply passage and the electronic component is made small in order to prevent the attitude of the electronic component from being disturbed in the supply passage, the flow resistance is large and the air cannot flow at a sufficient flow rate.

Further, in the above-mentioned bulk feeder, since the air for feeding is only supplied at the inlet side of the supply passage, the feeding force becomes insufficient when the supply passage is long, and the sufficient feeding speed is not achieved. It was one of the reasons why I could not get it. The feed force can be increased to some extent by increasing the flow rate of the air blown from the feed air jet port, but there is a limit. This is because if the flow rate of the jetted air becomes excessive, the jetted air will flow back to the second separation chamber side to prevent the electronic parts from entering the supply passage, and the electronic parts will not be supplied.

The problem is that the longer the supply passage, the more
The longer the horizontal part of the supply passage, the more likely it is to occur. It is desirable that the supply passage extends horizontally at a position where the electronic component is adsorbed and taken out by the electronic component adsorption device, and the supply passage is often horizontal at least on the outlet side. High-speed supply of electronic components becomes difficult. Therefore, if the mounting time intervals of electronic components are small, misfeeds are likely to occur.

The first aspect of the present invention has been made in view of the above circumstances and has as its object to provide a bulk feeder capable of rapidly or reliably supplying articles. A second invention according to claim 2 has as an object to provide a bulk feeder capable of quickly or reliably supplying articles even when the supply passage is long. An object of a third invention according to claim 3 is to further facilitate realization of quick and reliable supply of articles. An object of a fourth invention according to claim 4 is to easily separate articles in bulk from each other by jetting air. An object of a fifth invention according to claim 5 is to easily and surely take out an article by an article take-out device.
An object of a sixth invention according to claim 6 is to avoid that the air for feeding articles adversely affects the taking-out of articles by the article taking-out device.

[0007]

Means for Solving the Problems, Functions and Effects of the Invention
In order to solve the above problems, a bulk feeder according to a first aspect of the present invention includes at least a (D) supply passage in addition to the (A) storage chamber, the (B) supply passage, and the (C) separation device. A feed air ejection port formed in a direction having a direction component toward the exit side at one location, and (E) a gap between the supply passage and the article is provided at least on the exit side from the feed air ejection port. , A relief means for escaping the air ejected from the feed air ejection port to the outside. The set of the air outlet for sending air and the escape means may be provided at any of the vicinity of the inlet of the supply passage, the portion on the outlet side, or the intermediate portion, or may be provided at a plurality of locations. It may be provided at a plurality of places in the intermediate portion. If the feed air jet is provided in the vicinity of the inlet of the supply passage, it serves as an inlet air jet, if it is provided on the outlet side, it serves as an outlet air jet, and if it is provided at an intermediate portion, it serves as an intermediate air jet. It should be noted that it is not essential that all the feed air jets be paired with the escape means.

As described above, if the escape means is provided in combination with the sending air jet port, the air jetted from the sending air jet port is released by the escape means. The sending air jet is formed in a direction having a directional component toward the outlet side, and the escape means is provided on the outlet side of the sending air jet, so that the air flow toward the outlet side is present in the supply passage. Occurs. Since the air is released by the escape means, the flow rate of the air jetted from the feed air jet can be increased, and a sufficient feed speed can be obtained. In addition, when the escape means is provided in the middle of the supply passage, the flow of air is reduced or eliminated on the outlet side of the escape means, and the feeding force due to the flow of air is not applied to the article in this part. However, there is no problem because the feeding force applied to the article between the sending air ejection port and the escape means is transmitted to the article on the outlet side of the escape means via the intermediate article.

In the second aspect of the invention, the feed air jet in the first aspect of the invention includes an outlet side air jet formed at a position closer to the outlet than the inlet of the supply passage, and the escape means is provided. , At least on the outlet side of the outlet side air ejection port.

In this bulk feeder, among the articles separated by the separating device and arranged in a line in the supply passage, the articles located at the outlet side of the supply passage are blown out from the air outlet of the outlet side. To move to the exit side. The outlet side air jet has a directional component toward the outlet side, and the jetted air flows to the outlet side through the gap between the supply passage and the article and sends the article,
It is escaped by the escape means. Even if more than the amount of air that can flow through the gap is ejected, the excess air is escaped by the escape means, so that it does not flow back to the inlet side of the supply passage and prevent the articles from entering the supply passage. , The articles are delivered to the outlet by the air flow in the gap and the air flow escaped by the escape means. In this way, the articles on the outlet side of the supply passage are sent to the outlet by the air jetted from the outlet side air jets, so that the articles on the outlet side do not become clogged and the articles on the inlet side to the outlet side are not clogged. The product can be easily fed by pressure and can be quickly and reliably supplied. Further, even if the ejection flow rate of air from the outlet side air ejection port is increased in order to increase the feeding speed of the article, it is escaped by the escape means, so that it flows backward to the inlet side of the supply passage and into the article supply passage. Goods can be sent quickly without hindering the entry of Incidentally, the outlet side air jet has a directional component toward the outlet side,
Since the jetted air flows to the outlet side, it is sufficient to release the air by providing an escape means from the outlet side air outlet to the outlet side, but it may be provided from the outlet side air outlet to the inlet side. . By doing so, the air blown out from the inlet side air outlet can be released to the outside, and a flow of air from the inlet side to the outlet side in the supply passage can be secured. In that sense, the escape means provided on the inlet side with respect to the outlet side air jet outlet also serves as the escape means for letting out the air jetted from the inlet side air jet outlet and the intermediate air jet outlet to the outside.

In the third invention, the first invention or the second invention
The escape means of the bulk feeder according to the present invention is configured to include a plurality of air vent holes which penetrate the peripheral wall of the supply passage in the thickness direction and are formed at intervals in the longitudinal direction of the supply passage.

In this bulk feeder, the air jetted from the feed air jet port escapes to the outside through the air vent hole. It is easy to form the air vent hole penetrating in the thickness direction in the peripheral wall of the supply passage, and the escape means can be easily formed. Also, the amount of air escape can be easily adjusted by changing the diameter, number, forming interval, etc. of the air vent holes. The diameter of the air vent hole may be changed according to the dimension of the cross-sectional area of the supply passage, or may be changed for a plurality of air vent holes formed in one bulk feeder.
As will be described later in the embodiments of the invention, one row may be formed or a plurality of rows may be formed along the article feeding direction. Further, an air vent hole may be provided not only on the outlet side of the feed air jet outlet but also on the inlet side.

In a fourth aspect of the invention, the bulk feeder separating apparatus according to any one of the first to third aspects of the invention is provided.
(A) at least one separation chamber provided between the outlet of the accommodation chamber and the inlet of the supply passage, and (b) having a directional component toward the separation chamber at a position close to the inlet of the supply passage. A separation air ejection port for ejecting air toward the separation chamber to blow off and separate the article, and (c) a component close to the inlet of the supply passage and having a directional component toward the outlet. An inlet side air jet is included.

In this bulk feeder, the articles in the storage chamber enter the separation chamber while being regulated, are blown and separated by the air ejected from the separation air ejection port, and enter one by one from the separation chamber into the supply passage when falling. . The articles in the supply passage are moved to the outlet side by the air jetted from the inlet side air jet outlet. The articles on the outlet side of the supply passage are sent to the outlet side by the air jets from the intermediate air outlet and the outlet side air outlet, and the outlet side portion is not clogged. When air is ejected from the outlet, the articles on the inlet side are easily sent to the outlet side. The inlet-side air ejection port is a type of feed air ejection port. As described above, in the bulk feeder of the third invention, the articles can be easily separated by providing the separation chamber, the separation air ejection port, and the inlet side air ejection port.

In the fifth invention, the bulk feeder according to any one of the first to fourth inventions further comprises (α)
An article taking-out concave portion which communicates with the outlet of the supply passage and which opens upward, (β) a cover which is movable to an operation position for closing the opening of the article taking-out concave portion and a retracted position for opening the same (γ)
A push-up member that is movable to a descending position that forms the bottom surface of the article taking-out recess and a raising position that rises from the descending position to push up the article in the article taking-out recess and close at least a part of the outlet of the supply passage. And (δ) a cover / push-up member drive device for moving the cover from the operating position to the retracted position and raising the push-up member from the lowered position to the raised position.

In this bulk feeder, the leading article located on the most outlet side in the supply passage is pushed into the article-removing concave portion by being pushed by the article in the rear or the air blown from the feed air ejection port. At this time, the push-up member is in the lowered position to allow the article to enter the article-removing recess,
The cover is in the operating position and prevents the article from popping out of the article removal recess. The article in the article removal recess is pushed up in the article removal recess as the push-up member rises to the raised position. When the article is pushed up by the push-up member, the cover is moved to the retracted position, and the article is allowed to be taken out from the article taking-out concave portion. Further, the protrusion member blocks at least a part of the outlet of the supply passage as it moves to the raised position, and prevents the next article from moving from the supply passage into the article removal recess. In this way, the articles are accommodated one by one in the article-removing recess without any fear of being ejected, and the articles are surely separated from the next article by the rise of the protrusion member and are reliably supplied one by one to the article-removing device. .

In the sixth invention, in the bulk feeder according to the fifth invention, when the cover / protrusion member drive device moves the cover and the protrusion member to the retracted position and the raised position, respectively, the supply passage The outlet air jet stop means is provided so that the air is not substantially jetted from the outlet.

In this bulk feeder, when the article is taken out from the component taking-out recess, air is not ejected from the outlet of the supply passage, so when the cover is moved to the retracted position and the opening of the component taking-out concave is opened. Even if the article take-out device does not hold the article yet, the article is not blown off by air or is not raised. Further, even if the article take-out device holds the article by sucking the article with the suction nozzle or the like, the adsorbed article is not displaced by the ejection of air.

In order to make the air substantially not jetted from the outlet of the supply passage, for example, at least the feed air jet closest to the outlet (outlet side air jet; an intermediate air jet if necessary) The air supply to the inlet-side air ejection port) may be cut off. In addition, the on-off valve, variable throttle valve, etc. allow the air ejected from the feed air jet port to escape to the outside from other than the outlet of the supply passage, or the air supplied to the feed air jet port You may make it escape on the air supply source side rather than the ejection port. For example,
A bulk feeder is provided with an escape passage and an opening / closing member for opening / closing the escape passage in a passage connecting the air supply outlet and the air supply source. The opening / closing member is always closed, but the cover and the protruding member are provided. It is opened in conjunction with the movement of the and to the retracted position and the raised position.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION In addition to the embodiments described in the above claims, the present invention can be implemented in the following embodiments. The embodiments are conveniently described as an embodiment of the same type as the claims. However, an embodiment term that is further dependent on an embodiment claim that depends on a plurality of claims is not necessarily readable for all of the plurality of claims, and is substantially readable, that is, a preceding statement corresponding to a cited matter. Only the section containing the matter should be read. (1) The bulk feeder according to any one of claims 1 to 6, wherein the feed air jet port is opened in a bottom surface of the supply passage, and the air vent hole is formed in an upper wall of the supply passage. The lower wall of the supply passage is thick due to the main body of the bulk feeder and the like, whereas the upper wall is usually thin so that the air vent hole can be easily formed. (2) The bulk feeder according to any one of claims 1 to 6 and claim 1, wherein the escape means is also provided on the inlet side with respect to the feed air ejection port. (3) The escape means includes an air vent groove formed on the inner surface of the peripheral wall of the supply passage in parallel to the longitudinal direction of the supply passage and having an air vent groove whose tip is open to the outside. 2. The bulk feeder according to any one of 2. The air vent groove may be provided in a portion that constitutes an intermediate portion in the vertical direction of the supply passage of the peripheral wall, or may be provided in a portion that constitutes an upper portion or a lower portion. Both the air vent groove and the air vent hole may be provided. (4) The cover / thrust member driving device biases the first thrust member toward the lowered position, and the first elastic member biases the cover toward the operating position. 2 an elastic member, a protrusion member engaging portion that engages the protrusion member and raises the protrusion member to the raised position against the elastic force of the first elastic member, and engages the cover A drive member including a cover engaging portion that moves the cover to the retracted position against the elastic force of the second elastic member, and a drive member drive device that drives the drive member. 5, 6, the bulk feeder according to any one of the first to third embodiments. Since one driving member moves both the cover and the protrusion member, the relative operation timing of the cover and the protrusion member can be accurately controlled, and the article can be taken out easily with certainty. Become. Further, since the number of constituent members is small, the structure of the cover / push-up member driving device can be simplified. (5) The outlet air jet stop means is an air supply stop means for stopping the supply of air to at least the feed air jet outlet closest to the outlet. Bulk feeder described in one. The air supply stopping means for stopping the supply of air to the feed air jetting outlet is a simple and reliable outlet air jetting stopping means. (6) A plurality of sets of the feed air jet ports and the corresponding escape means are provided at intervals in the longitudinal direction of the supply passage.
The bulk feeder according to any one of 1. (7) The bulk feeder according to any one of claims 2 to 6 and embodiments 1 to 6, which includes a first joint member that communicates with the outlet side air ejection port by a communication path. (8) The first joint member communicates not only with the outlet side air outlet but also with other air outlets such as a separating air outlet, an inlet side air outlet, an intermediate air outlet, etc. Item 7. The bulk feeder according to item 7, which is a joint member common to the above. The first joint member is common to the plurality of air ejection ports, and the bulk feeder can be manufactured at a lower cost than when the first joint member is provided for each of the plurality of ejection ports. (9) A plurality of bulk feeders according to the embodiment 7 or 8, and a plurality of the bulk feeders are supported in parallel, and the bulk feeders are moved in a moving direction parallel to the arrangement direction of the bulk feeders. A moving table that selectively positions each one at a supply position, and a connection position that is provided at the supply position and is in a connection state with the first joint member of the bulk feeder positioned at the supply position, and is separated from the first joint member. A bulk feed system including a second joint member that moves to a separated position and an air supply source that supplies air to the second joint member. Each of the first joint members of the plurality of bulk feeders supported on the moving table is connected to the second joint member only at the feeding position, and is not connected when the moving table moves. Therefore, for each of the plurality of bulk feeders, the plurality of air supply pipes move together when the moving table moves, as in the case where each ejection port is connected to the air supply source via the common or individual joint member. It can be moved at high speed with less vibration. (10) The bulk feed system according to item 9, further including a control valve provided between the second joint member and the air supply source to switch between a state in which the air supply is allowed and a state in which the air supply is blocked. The first joint member is provided exclusively for each of the plurality of air outlets such as the outlet side air outlet, the intermediate air outlet, the inlet side air outlet, the separation air outlet, etc. of each bulk feeder. It is also possible to provide a control valve between the air outlet and each air outlet, and in doing so, start air ejection of each air outlet with respect to the operation of the control valve,
There is an advantage that the response speed of the air jet stop can be increased and the air jet at each jet port can be individually controlled. It is also possible that the first joint member is common to at least two air outlets of each bulk feeder, and a control valve is provided between the first joint member and each air outlet. There is an advantage that the responsiveness of air ejection control can be increased. However, if a control valve is provided between the second joint member and the air supply source as in the present aspect, there is an advantage that the number of control valves provided can be reduced and the device cost can be reduced.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION An electronic component mounting system having a bulk feed system having a plurality of bulk feeders, which is a common embodiment to the first to sixth inventions, will be described in detail below with reference to the drawings. In FIG. 1, 10 is a bulk feed system. Bulk feed system 10
Has a plurality of bulk feeders 12 (only one is shown in FIG. 1), and one of the plurality of bulk feeders 12 is a kind of electronic component take-out device which is an article take-out device. An electronic component is supplied to a certain electronic component mounting device 14, and the electronic component mounting device 14 mounts the electronic component on the printed circuit board 18 positioned and supported by the printed circuit board positioning support device 16.

The electronic component mounting device 14 is provided with an index table 20 which intermittently rotates about a vertical axis. The index table 20 has twelve component suction heads 22 (only two are shown in the figure), which are twelve component holders, and a cam, a cam follower, and a rotary shaft 2 not shown.
4 and the index servo motor 26 (see FIG. 2) for rotating the cam, which is intermittently rotated by the intermittent rotation device, and the 12 component suction heads 22 are sequentially moved to the component suction position, the component posture detection position, and the component posture. It can be moved to the correction position, component mounting position, etc. The component suction heads 22 are provided on the index table 20 so as to be able to move up and down, and head raising / lowering devices (not shown) for raising and lowering the component suction heads 22 are provided at the component suction positions and the component mounting positions, respectively. The rotation of the index servomotor 26 is converted into a lifting motion of a lifting member (not shown) by a motion conversion mechanism composed of a cam, a cam follower, etc. (not shown), and the component suction head 22 is lifted based on the lifting of the lifting member. .

The printed circuit board positioning and supporting device 16 positions the printed circuit board 18 and supports it.
It has. The substrate support base 30 is provided on an XY table (not shown) that moves in the X-axis direction and the Y-axis direction that are orthogonal to each other in the horizontal plane, and the printed board 18 is moved to any position in the horizontal plane by the movement of the XY table. Be moved to. The printed circuit board 18 is conveyed in a direction parallel to the X-axis direction by a carry-in conveyor and a carry-out conveyor (not shown), carried in on the board support base 30, and carried out. When mounting electronic components, the printed circuit board 18 is XY
The component is moved by the table, the component fixing position is located directly below the component suction head 22 located at the component mounting position, and the electronic component is mounted.

The bulk feed system 10 will be described.
On the base 40 of the bulk feed system 10, a pair of guide rails 42 are provided parallel to the X-axis direction, and an X-axis slide 44 is movably fitted. X
The plurality of bulk feeders 1 are mounted on the shaft slide 44.
2 is attached in a state where the electronic component feeding direction is parallel to the Y-axis direction, and the respective component take-out portions are arranged in a straight line parallel to the X-axis direction. A nut 46 is fixed to the X-axis slide 44, and is screwed to a screw shaft 48 provided on the base 40 so as to be immovable in the axial direction and rotatably. The screw shaft 48 is an X-axis servomotor 50. (See Figure 2)
The X-axis slide 44 is rotated by
Is moved in the X-axis direction, and a plurality of bulk feeders 1
2 are positioned one by one at a supply position for selectively supplying electronic components. The X-axis slide 44, the nut 46, the screw shaft 48, and the X-axis servomotor 50 form a moving table.

As shown in FIG. 2, the main body 60 of the bulk feeder 12 comprises a first member 62 and a second member 64 attached to the first member 62. First member 6
Reference numeral 2 denotes a generally elongated plate shape, the longitudinal direction of which is the electronic component feed direction parallel to the Y-axis direction, and the width direction perpendicular to the electronic component feed direction in the horizontal plane is parallel to the X-axis direction. At the same time, as described above, the component take-out portions of the respective bulk feeders 12 are installed upright on the X-axis slide 44 in a state of being aligned in a straight line parallel to the X-axis direction.

The mounting device for mounting the first member 62 on the X-axis slide 44 is constructed in the same manner as the mounting device for mounting the electronic component supply cartridge on the cartridge mounting base in the electronic component supplying device described in Japanese Patent Laid-Open No. 8-56096. This is briefly explained here. On the lower surface of the first member 62, at two locations spaced apart in the longitudinal direction,
A pair of first positioning protrusions 66 extending parallel to the longitudinal direction.
And a second positioning extended downward at a right angle from the rear end in the longitudinal direction (the end opposite to the electronic component mounting device 14 side when the bulk feeder 12 is attached to the X-axis slide 44). And a protrusion 68. The pair of first positioning protrusions 66 are respectively provided on the X-axis slide 4
4 is fitted in a pair of positioning grooves (not shown) formed parallel to the Y-axis direction on the upper surface of the second positioning protrusion 68.
An engaging member (not shown) attached to the X-axis slide 44 is engaged with the second positioning protrusion 68 while being fitted into a positioning groove (not shown) formed on the rear surface of the shaft slide 44. Further, of the pair of first positioning protrusions 66, the front side (the electronic component mounting device 14 side when the bulk feeder 12 is attached to the X-axis slide 44).
Sloped surface 7 formed at the front end of the first positioning protrusion 66 of
0 is engaged with the inclined surface formed on the X-axis slide 44, the first member 62 is immovable in the X-axis slide 44 in the X-axis direction and the Y-axis direction, and the bulk feeder support surface of the X-axis slide 44. It is pressed against and can be attached without rising.

The main body 60 has a first passage 72 formed in the first member 62 and a second passage 7 formed in the second member 64.
A supply passage 76 is formed by connecting 4 and 4.
The first member 62 and the first passage 72 will be described later, and first, the second member 64 and the second passage 74 will be described.

The second member 64 is formed by assembling a plurality of members for convenience of manufacture. The second passage 74 formed in the second member 64 is bent at an intermediate portion in the longitudinal direction and is opened at the front end surface of the second member 64. A portion of the second member 64 forming the upper wall of the second passage 74 is projected forward from the opening of the second passage 74, and an engaging tongue piece 80 having a width narrower than that of the second member 64 is provided. There is. The bottom surface 82 of the second member 64 is bent along the second passage 74. 2 on each side surface of the portion of the second member 64 on the rear side of the bent portion of the bottom surface 82.
The individual engaging protrusions 84 are provided at a distance in the longitudinal direction (in FIG. 2, only the engaging protrusions 84 formed on one side surface are shown).

A notch 86 that opens in the upper surface of the first member 62 and penetrates in the width direction is formed in the middle portion of the first member 62 in the longitudinal direction.
Are formed. An engaging groove 90 (see FIGS. 3 and 5) having a bottom surface at the upper surface of the first member 62 is formed in a portion of the first member 62 adjacent to the notch 86 on the front side of the notch 86. Specifically, as shown in FIG. 6, a pair of protrusions 9 is provided in a portion adjacent to the notch 86 on the upper surface of the first member 62.
2, 93 project in the width direction of the first member 62 with a gap into which the engaging tongue piece 80 is fitted, and an engaging groove 90 is formed between the projecting portions 92, 93. -ing

At the rear side of the notch 86 of the first member 62, as shown in FIG. 2, the mounting member is inclined with respect to the upper surface of the first member 62 at the same angle as the bending angle of the second passage 74. A section 94 is provided. The upper surface of the mounting portion 94 is inclined upward toward the rear. 2 and 3 are respectively provided at two locations on both sides of the mounting portion 94, which are separated in the front-rear direction.
As shown in, the pressing member 96 is fixed. The pressing member 96 is fixed at a right angle to the upper surface of the mounting portion 94, and an upper portion of the pressing member 96 is projected upward from the upper surface of the mounting portion 94. Is formed with an engaging groove 98 (see FIG. 2) penetrating in a direction parallel to the upper surface of the.

In the second member 64, the engaging tongue piece 80 has the engaging groove 9.
The front end face, which is fitted to 0 and the second passage 74 is opened, is brought into contact with the front side face 100 of the notch 86, and the four engaging projections 84 are respectively engaged with the engaging groove 98 of the pressing member 96. And is attached to the first member 62 so as to be immovable in the width direction and non-liftable. Further, the plate 1 is provided on the upper surface of the mounting portion 94 on the rear side of the second member 64.
02 is fixed, the second member 64 is sandwiched between the plate 102 and the side surface 100, and is immovably attached to the first member 62. In this attached state, a portion of the second passage 74 in front of the bent portion is horizontal, and a portion of the rear side in the rear portion is inclined upward in the backward direction. The front opening of the second passage 74 is aligned with the opening of the first passage 72 to the side surface 100, and communicates with the first passage 72.

At the rear end of the second member 64, as shown in FIG. 2, a chip-shaped leadless electronic component 110 (see FIG. 5, hereinafter referred to as electronic component 110) having no lead wire. A large number of storage cases 112 are detachably attached. The electronic component 110 housed in the housing case 112 enters the housing chamber 114 through the opening provided in the rear wall of the second member 64, and enters the first separation chamber 116 and the second separation chamber 118 from the housing chamber 114. . These three chambers 11
Nos. 4 to 118 are provided in parallel with a portion of the second passage 74 on the rear side of the bent portion, and the bottom surfaces of the chambers 114 to 118 are inclined so that the height increases toward the rear.

The first separation chamber 116 is smaller than the accommodation chamber 114, and both chambers 114 and 116 are partitioned by the first partition member 124. Between the lower end of the first partition member 124 and the bottom surface of the storage chamber 114, a discharge port 126 that allows passage of a plurality of electronic components 110 is provided.
The electronic components in 14 are gradually moved by gravity into the first separation chamber 116 through the outlet 126.

The second separation chamber 118 and the first separation chamber 116 are partitioned by a second partition member 128, and the electronic component 110 in the first separation chamber 116 is cut out (not shown) formed in the second partition member 128. It moves to the inside of the 2nd separation room 118, subject to restrictions through (omitted). A rod-shaped movable member 130 is provided at a front portion of the second separation chamber 118 opposite to the first separation chamber 116.
Are movably fitted in parallel to the inclination of the bottom surfaces of the chambers 114 to 118 and in a direction perpendicular to the bottom surfaces. As a result, in the second separation chamber 118, there are a plurality of parts in the lower part of the movable member 130, the height of which allows one electronic component 110 to pass when the movable member 130 moves up and down. A separation passage portion 132 is formed that changes to a size that allows individual passage. The second passage 74
Is connected to the separation passage portion 132, the opening of the second passage 74 to the separation passage portion 132 is the inlet of the supply passage 76, and the side of the first passage 72 communicated with the second passage 74. The opening on the side opposite to the opening is the outlet of the supply passage 76. In addition, the second passage 74, the storage chamber 114, the first and second
The separation chambers 116 and 118 are formed by closing a groove and a recess formed in a member forming the second member 64 with a cover, and FIG. 2 shows a state in which the cover is removed.

At a position of the second member 64 closer to the first separation chamber 116 than the second partition member 128 is, as shown in FIG.
The separation air ejection port 136 is formed so as to have a directional component toward the inside of the first separation chamber 116. The second member 64 is also provided with a second separation air jet port 138 having a directional component toward the inside of the separation passage portion 132, that is, the inside of the second separation chamber 118, at a position close to the inlet of the supply passage 76. There is. Further, at a position close to the entrance in the supply passage 76,
An inlet-side air jet 140 having a directional component toward the outlet of the supply passage 76 is formed.

The above three jet nozzles 136, 138, 140
Are communicated with a common air supply passage (not shown) formed in the second member 64. This passage
With the second member 64 attached to the first member 62,
The air supply passage 142 formed in the first member 62 (see FIG.
Refer to)). The air supply passage 142 is connected to a joint member 146 fixed to the first member 62 by a communication passage mainly composed of a hose 144. Joint member 146
Is an opening 1 formed by penetrating the first member 62 in the width direction.
The hose 144 is provided in the first member 62.
It is accommodated in the hose accommodating groove 150 formed on the side of the bulk feeder 12 so as not to protrude from the side surface of the bulk feeder 12.

The first member 62 will be described. The first member 62 has an upper surface and a side surface 100 of the notch 86 that is in contact with the opening of the second passage 74. The electronic component 110 is taken out in front of the notch 86. A groove reaching the component take-out portion is formed, and an opening on the upper side of the groove is closed by a plate 152 that is a passage forming body fixed to the upper surface of the first member 62, whereby the first opening is formed.
A passage 72 is formed. The first passage 72 is bent in the width direction of the first member 62 as shown in FIG.
The opening on the side opened to the side surface 100 is communicated with the second passage 74, and the end on the opposite side is the component suction positioned at the component suction position with the bulk feeder 12 positioned at the supply position. The head 22 and the position in the X-axis direction are made to coincide with each other.

In the portion of the plate 152 which constitutes the upper wall of the first passage 72, the plate 15 is formed along the first passage 72.
First, a plurality of air vent holes 158 that penetrate 2 in the thickness direction are formed.
The passages 72 are formed at intervals in the longitudinal direction. The air vent holes 158 have the same diameter. The pressing member 160 is placed on the plate 152 and is fixed to the first member 62 together with the plate 152. As shown in FIG. 6, the pressing member 160 has a shape corresponding to one of the two members obtained by dividing the plate 152 at the portion where the air vent holes 158 are formed, and the row of the air vent holes 158 is formed. On one side of
It is fixed along the row of air vent holes 158.

The rear end portion of the pressing member 160 is bent obliquely upward and then formed as a pressing portion 162 which extends rearward in parallel with the upper surface of the first member 62, and the second member 64.
Is provided on the engaging tongue 80 fitted to the engaging groove 90 provided at the front end of the. The engaging tongue 80 has the engaging groove 9
By being fitted with 0, the engaging groove 90 of the first passage 72
The opening of the bottom surface of the first member 62 is closed and positioned in the width direction, and is prevented from rising by the pressing portion 162 and pressed against the upper surface of the first member 62. On the other hand, they are accurately positioned in the up-down direction and the width direction and are communicated with each other without displacement.

As shown in FIG. 5, the outlet side air ejection port 17 is provided at a portion relatively close to the outlet in the middle portion of the supply passage 76.
0 is formed in a direction having a directional component toward the outlet side. The diameter of the outlet-side air outlet 170 is larger than the diameter of the first and second separation air outlets 136 and 138 and the inlet-side air outlet 140, and the outlet-side air outlet 170
One end of the is opened to the bottom surface of the supply passage 76. The other end of the outlet-side air jet 170 has a hose 172.
Is connected to the joint member 146 by a communication passage mainly composed of. As shown in FIG. 2, the joint member 146 is attached to a bracket 176 fixed to the first member 62 by a communication passage mainly composed of a hose 174.
It is connected to the. As shown in FIGS. 2 and 6, the hose 174 is passed through the notch 179 formed in the first member 62 to the opening 148 and connected to the joint member 146.

As shown in FIG. 2, the joint member 178 is connected to the joint member 180 provided at the supply position. The joint member 180 is connected to the air supply source 184. An electromagnetic directional switching valve 186 is provided between the joint member 180 and the air supply source 184. By switching the electromagnetic directional switching valve 186, the joint member 180 selectively communicates with the air supply source 184 and the atmosphere. To be

The joint member 180 is moved up and down by an elevating device 188, which is a joint member driving device, and by descending, the joint member 1 of the bulk feeder 12 positioned at the supply position.
It moves to a connection position where it becomes a connection state with 78, and moves to a separated position where it is separated from the joint member 178 by rising. Since the joint member 180 is connected to the joint member 178 and communicated with the air supply source 184, the first and second separation air ejection ports 136 and 138 and the inlet side air ejection port 14 are provided.
0 and the outlet side air outlet 170 simultaneously, and the outlet side air outlet 170 ejects air at a larger flow rate than the other outlets 136 to 140.

The air outlet 1 on the outlet side of the supply passage 76
The width of the portion on the outlet side of the portion where 70 is opened is narrower toward the outlet side. In the vicinity of the outlet, the plate 1 forming the upper wall of the electronic component 110 and the supply passage 76
A gap that allows the flow of air remains with 52, but there is only a small gap that allows the movement of the electronic component 110 between the electronic component 110 and the side surface of the supply passage 76 in the width direction. Therefore, the width of the outlet of the supply passage 76 becomes equal to the width of the component taking-out concave portion described later, the electronic component 110 moves from the supplying passage 76 to the component taking-out concave portion without being caught, and the electronic component 110 in the component taking-out concave portion is moved. The 110 is accurately positioned.

The component pick-up head positioned at the component pick-up position in the state where the bulk feeder 12 is positioned at the feed position, that is, the part pick-up portion of the first member 62, that is, the portion where the outlet of the supply passage 76 is provided. As shown in FIG. 5, a fitting groove 190 that opens to the upper surface and one side surface of the first member 62 is formed in a portion located below 22. The fitting groove 190, as shown in FIG. 7 and FIG.
The bottom surface (the surface parallel to the side surface of the first member 62 and extending in the vertical direction) of the supply passage 76 has the fitting groove 19 of the first member 62.
0 has a depth (dimension in the width direction of the first member 62) located in the same plane as the side surface of the passage farther from the opened side surface, and the outlet portion of the supply passage 76 is in the fitting groove 190. It is projected. As shown in FIG. 5, the fitting groove 190 is provided with a projection 192 that projects from the groove side surface on the rear side of the fitting groove 190 and forms the bottom surface of the supply passage 76.

As shown in FIG. 5, a protrusion member 196 is fitted in the fitting groove 190 so as to be vertically movable. The protrusion member 196 has a plate shape having a thickness equal to the width of the outlet portion of the supply passage 76 (dimension in the width direction of the first member 62), and has a width (dimension in the electronic component feeding direction) in the upper part of the plate. A protrusion 198 that is slightly larger than the length of the component 110 (a dimension in the electronic component feeding direction) is provided, and a pair of arm portions 200 that extend in opposite directions are provided on the lower side. Further, as shown in FIG. 12A, an inclined surface 202 that is inclined toward the supply passage 76 side toward the lower side is formed at the end of the upper end portion of the protrusion 198 on the supply passage 76 side.

The guide member 204 fixed to the first member 62 prevents the protrusion member 196 from being pulled out from the fitting groove 190 in the depth direction. The guide member 204 is
As shown in FIGS. 5 and 7, the first member 6 has a plate shape.
2 and the arm portion 20 that extends rearward from the attachment portion 206 and has the width (dimension in the width direction of the first member 62) of the same dimension as the depth of the fitting groove 190.
8 is provided.

As shown in FIG. 7, the arm portion 208 is extended to a position reaching the groove side surface on the rear side of the fitting groove 190, and at the portion corresponding to the supply passage 76 in the width direction, the arm portion 208 is formed as described above. A notch 210 is formed in which the protrusion 192 and the protrusion 198 can be fitted. In other words, the thickness (the vertical dimension of the first member 62) is equal to the thickness of the arm portion 208, the width is equal to the width of the outlet of the supply passage 76, and the fitting groove 19
The protrusion 212 is provided so as to protrude from the groove side surface on the front side of 0 to a position having a gap allowing the fitting of the protrusion 198 with the protrusion 192. The projecting portion 198 of the projecting member 196 is fitted in a gap between the projecting portions 212 and 192 so as to be able to move up and down. The projecting end surface of the projecting portion 212 faces the outlet of the supply passage 76, and the electronic component 110
A stopper surface 214 for stopping the movement of the.

The portion of the arm portion 208 corresponding to the fitting groove 190, except for the notch 210 and the protrusion 212, is shown in FIG.
A guide protrusion 216 is provided so as to project downward as shown in FIG.
The push-up member 196 is sandwiched between the bottom surface of 90 and the bottom surface of 90. The guide protrusion 216 is thick as shown in FIG. 8 and prevents the protrusion member 196 from being pulled out from the fitting groove 190.

A compression coil spring 220 (hereinafter, compression spring 2) as an elastic member, which is a kind of urging means, is provided above the pair of arm portions 200 of the thrust member 196.
(Abbreviated as 20) is fitted. In the portion of the first member 62 where the fitting groove 190 is formed, as shown in FIGS. 5, 7, and 8, the width (the dimension of the first member 62 in the front-rear direction) and the depth of the fitting groove 190 are larger than the fitting groove 190. An accommodation recess 222 having a large (dimension in the width direction of the first member 62) and a short length (dimension in the vertical direction) is formed, and the compression spring 220 is accommodated in the accommodation recess 222. The thrust member 196 is biased downward by the compression spring 220, and
The lower limit of the movement of 96 due to the urging force of the compression spring 220 is defined by the arm 200 contacting the lower surface of the housing recess 222. In this way, the thrust member 1
In the state where 96 is located at the lower end position, as shown in FIG. 5, the upper surface of the protruding portion 198 is located in the same plane as the bottom surface of the supply passage 76, and the protruding portion 212 of the guide member 204, the guiding protruding portion 216, and the Along with the portion that constitutes the bottom wall of the fitting groove 190 of the first member 62, a component-removing recess 224 that opens upward and communicates with the outlet of the supply passage 76 is formed as a component-removing recess 224.

The first member 62 has a recess 224 for taking out the component.
A cover 230 is attached to close and open the opening. The cover 230 is made of a spring material and has a plate-like shape. As shown in FIGS. 5 and 8, the cover 230 is fixed to the lower portion of the side surface of the first member 62 in the vertical direction at one end in the longitudinal direction. ing. The upper portion of the cover 230 is bent at a right angle onto the upper surface of the first member 62, and the projecting end thereof is extended to above the component extracting recess 224, and the closing portion 232 that closes the opening of the component extracting recess 224. It is said that. As shown in FIG. 6, a semicircular cutout 234 is formed in a portion of the closing portion 232 that is located above the recessed portion 224 for taking out components, and when the supply of the electronic component 110 is stopped, or the like, at a proper time, The operator can see and confirm whether or not the electronic component 110 is present in the component extracting recess 224.

The portion of the cover 230 that extends in the vertical direction on the side surface side of the first member 62, which is the accommodation recess 2
As shown in FIG. 8, the portion located below 22 is once bent in a direction away from the side surface of the first member 62, and then bent upward to extend parallel to the side surface of the first member 62. A gap forming portion 238 that forms a gap 236 with the first member 62 is provided. In addition, the gap forming portion 238
An inclined portion 240 that is inclined toward the side surface of the first member 62 toward the upper side is provided on the upper part of the.

As shown in FIG. 5, a drive lever 250 for pushing up the push-up member 190 and retracting the cover 230 is rotatably attached to the first member 62. The drive lever 250 is rotatably attached about an axis parallel to the width direction of the first member 62 by a support shaft 252 that is provided at a position rearward from the thrust member 190 of the first member 62. ing.

The drive lever 250 extends forward from the support shaft 252, and is fitted into a gap 236 between the cover 230 and the first member 62, as shown in FIGS. 2, 8 and 9. ing. A portion of the extended end portion of the drive lever 250, which is on the front side of the fitting groove 190, is bent upward at a right angle, and, as shown in FIG. (Opposite side)
Is inclined toward the first member 62 toward the upper side,
A cover engaging portion 254 having a width that gradually decreases toward the upper end is provided. The inclination angle of the outer surface is the same as the inclination angle of the inclined portion 240 of the cover 230.

The portion of the drive lever 250 that extends forward from the support shaft 252 and that corresponds to the fitting groove 190 is, as shown in FIGS. 5 and 8, the first member 6
The protrusion member engaging portion 260 is provided at a right angle to the second side. The protruding member engaging portion 260 is fitted into the fitting groove 190 and extends below the protruding member 196. When the protruding member 196 is located at the lower end position, the protruding member engaging portion 260 is provided. The engaging portion 260 is provided on the thrust member 19.
Lower end portion 262 projecting downward from the arm portion 200 of 6
Located slightly below.

The extended end of the portion of the drive lever 250 that extends rearward from the support shaft 252 is formed into a yoke shape.
As shown in FIG. 2, it is engaged with one end of the first link 266. The other end of the first link 266 has a support shaft 26.
8 is rotatably attached to the first member 62 about an axis parallel to the width direction of the first member 62, and the drive lever 250 is rotatably engaged with the free end of the first link 266. Has been made.

The free end of the first link 266 is also rotatably connected to the lower end of the lifting link 270 by a pin 272. The yoke-shaped end of the drive lever 250 is sandwiched between the head of the pin 272 and the elevating link 270 to prevent the end from the first link 266. Lifting link 2
One end of the second link 274 is attached to an intermediate portion in the longitudinal direction of 70 by a pin 276 so as to be rotatable about an axis parallel to the width direction of the first member 62. The second link 274 is rotatably attached to the first member 62 by a support shaft 278 about an axis parallel to the width direction of the first member 62, but the distance between the pin 276 and the support shaft 278 is , The pin 272 of the first link 266 and the support shaft 2
The distance between the pins 272 and 276 is equal to the distance between the pins 272 and 276, and the distance between the support shafts 268 and 278 is equal.
The lifting link 270 can be lifted and lowered substantially vertically. A tension coil spring 280 (hereinafter referred to as a tension coil spring 280) as an elastic member, which is a kind of biasing means, is provided between the first member 62 and the end of the second link 274 opposite to the side connected to the lifting link 270. (Abbreviated as spring 280)
Is provided to urge the second link 274 in a direction to move the elevating link 270 upward. Tension spring 2
The rotation limit of the second link 274 based on the biasing force of 80 is
The first link 266 is defined by contacting the stopper protrusion 282 formed on the first member 62. Further, a horizontal engaging portion 284 is provided at the upper end of the elevating link 270.

An elevating member 286 is provided at the supply position. The elevating member 286 is provided above the elevating link 270 of the bulk feeder 12 positioned at the supply position, and the elevating member 286 is provided with a cam, a cam follower or the like (not shown) for the rotation of the index servo motor 26. The motion converting mechanism configured converts the motion into vertical movement and transmits the vertical movement, and the electronic component 110 is moved up and down in conjunction with the component suction head 22 taking out the electronic component 110. In addition,
A roller 288 is rotatably attached to a lower end portion of the elevating member 286 about an axis parallel to the Y-axis direction.
4 and the frictional resistance at the time of engagement is reduced.

This electronic component mounting system includes a control device 29.
0 (see FIG. 2). The control device 290 is mainly composed of a computer and controls the index servomotor 26, the X-axis servomotor 50, the electromagnetic directional control valve 186, the lifting device 188, and the like.

Next, the operation will be described. When the electronic component 110 is mounted on the printed board 18, the X-axis slide 44 is moved to position one of the bulk feeders 12 at the supply position. After the positioning, the component suction head 22 is lowered, and the electronic component 110 is taken out from the component taking-out recess 224. In addition, if the bulk feeder 12 that supplies the electronic component 110 is positioned at the supply position,
The joint member 180 is lowered and connected to the joint member 178.

The bulk feeder 12 includes the component suction head 2
In the state of waiting for the electronic component 110 to be taken out by 2 in FIG. 12, the protrusion member 196 is in the lowered position.
As shown in FIG.
, A part of the subsequent electronic component 110 projects from the outlet of the supply passage 76, and faces the inclined surface 202 of the protrusion 198. Further, the cover 230 is in the operating position as shown in FIG. 8 and closes the opening of the component extracting recess 224. When the component suction head 22 is lowered and the electronic component 110 is taken out from the component extraction recess 224, the elevating member 286 is lowered in parallel with the lowering of the component suction head 22 and is engaged with the engaging portion 284 of the elevating link 270. Then, the lifting link 270 is lowered.

When the drive lever 250 is rotated by the lowering of the elevating link 270, the cover engaging portion 254 engages with the inclined portion 240 of the cover 230 as shown in FIG. 10, and the inclined portion 240 or the cover engaging portion. The cover 230 is elastically deformed by the effect of the inclined outer surface of the joining portion 254, and the closing portion 232 is moved to the retracted position retracted from above the component ejection recess 224.

Further, when the drive lever 250 is rotated, as shown in FIG. 11, the thrust member engaging portion 260 is moved to the thrust member 1.
By engaging the lower end portion 262 of 96 and moving the protrusion member 196 upward, the electronic component 110 in the component extracting recess 224 is pushed up by the protrusion 198, as shown in FIG. 12B. The protrusion member 196 has the upper surface of the protrusion portion 198 located slightly below the opening of the component ejection recess 224, blocks more than half of the outlet of the supply passage 76, and the lower portion of the electronic component 110 into the component ejection recess 224. It is moved to the raised position. In addition, in FIG. 11, the air vent holes 158 formed in the plate 152 are not shown.

At this time, the succeeding electronic component 110 is pushed back from the component extracting recess 224 to the supply passage 76 by the effect of the slope of the slope 202 formed on the protrusion 198. Therefore, when the thrust member 196 is moved to the raised position, the succeeding electronic component 110 is
The electronic component 11 in the component take-out recess 224 to be supplied
While being separated from 0, it is prevented from moving to the component extracting recess 224 side. Electronic components to be taken out 1
10, the upper portion projects upward from the opening of the component taking-out concave portion 224, and the lower portion exists in the component taking-out concave portion 224, and a gap is left in the component taking-out concave portion 224 with the side surface of the component taking-out concave portion 224. Is positioned.

In the drive lever 250, after the cover 230 starts moving to the retracted position and the closing portion 232 separates from the upper surface of the first member 62, the protrusion member engaging portion 260 causes the protrusion member 19 to move.
6, the electronic component 110 and the cover 230 are raised.
It is formed so that and do not interfere with each other.

The component suction head 22 is lowered in parallel with the push-up of the electronic component 110 by the push-up member 196 and the withdrawal of the cover 230, so that the cover 230 withdraws from the recessed portion 224 for taking out components and the push-up member 196. Reaches the elevated position and then contacts the electronic component 110 and is adsorbed.
When the cover 230 completes the movement to the retracted position,
The component suction head 22 is designed so as to descend to a position where there is a slight gap between the component suction head 22 and the closing portion 232 of the cover 230, and does not interfere with the cover 230.

After sucking the electronic component 110, the component suction head 22 is moved up to take out the electronic component 110 from the component taking-out recess 224. At this time, as described above,
The electronic component 110 in the component take-out recess 224 is separated from the subsequent electronic component 110, and when the component suction nozzle 22 takes out the electronic component 110 in the component take-out recess 224, the electronic component 110 causes the stopper surface 114 or Since the electronic component 110 is not in contact with the subsequent electronic component 110, the electronic component 110 is not picked up by the component suction nozzle 22 and the electronic component 110 sucked by the component suction nozzle 22 is not displaced. The electronic component 110 includes the stopper surface 114 and the subsequent electronic component 110.
When the component suction nozzle 22 takes out the electronic component 110 from the component taking-out recess 224, the electronic component 110 and the stopper face 114 and the succeeding electronic component 110 are pressed against the stopper face 114 by the following electronic component 110. The electronic component 110 is prevented from being picked up by the component suction nozzle 22 due to frictional resistance generated between the electronic component 110 and the electronic component 110, and the component suction nozzle 22 cannot suck the electronic component 110 and take it out from the component taking-out recess 224. Alternatively, the electronic component 110 may be once adsorbed, but when the electronic component 110 is detached and the electronic component 110 is adsorbed again, the adsorption position may be displaced. However, in the bulk feeder 12, the subsequent electronic component 110 is located inside the component ejection recess 224 and is separated from the electronic component 110 to be taken out, and the subsequent electronic component 110 and the stopper surface 11 are provided.
4 does not hinder the removal of the electronic component 110 from the component removal recess 224 by the component suction nozzle 22, and thus a removal error or a suction position shift does not occur.

After the component suction head 22 is raised and the electronic component 110 is taken out from the component taking-out concave portion 224, the elevating member 286 is raised and the second link 274.
Is rotated based on the urging force of the tension spring 280 to raise the elevating link 270, and the drive lever 250 moves in the opposite direction from the time when the drive lever 250 is moved to the raised position and the retracted position of the protrusion member 196 and the cover 230. It can be rotated.
As a result, the thrust member 196 is lowered to the lowered position based on the biasing force of the compression spring 220, and the supply passage 76
, The cover 230 returns to the operating position based on its own elastic force, and closes the opening of the component extracting recess 224.

After the push-up member 196 and the cover 230 have respectively returned to the lowered position and the operating position, the coupling member 180 is made to communicate with the air supply source 184 by switching the electromagnetic directional control valve 186, and the first and second separating members are connected. Air jet 1
36, 138, the inlet side air outlet 140, and the outlet side air outlet 170 eject air for a set time. The electronic components 110 in the first separation chamber 116 are blown off and separated by the air jetting from the first separation air jet port 136, and when the jetting of the air is stopped and some of the electronic components 110 drop, The second partition chamber 118 is entered through the notch formed in the second partition member 128. 1 in the second separation chamber 118
The one or a plurality of electronic components 110 are arranged in the second separation chamber 118.
Due to the inclination of the bottom surface of the movable member 130, the movable member 130 enters the separation passage portion 132 below.

Further, the ejection of air from the second separation air ejection port 138 causes the electronic component 11 in the separation passage portion 132 to be ejected.
0 and the movable member 130 are blown up and a plurality of electronic components 110 are overlapped with each other, they are separated one by one, and the electronic components 1 are fed from the second separation chamber 118 to the supply passage 76.
10 are made to enter one by one. The air ejected from the second separation air ejection port 138 is supplied to the second separation chamber 118.
Is also blown into a portion adjacent to the first separation chamber 116, and the electronic component 110 in that portion is blown off and separated.

The electronic component 110 in the supply passage 76 is pressure-fed to the outlet side by the jet of air from the inlet side air outlet 140. The inlet-side air ejection port 140 has a directional component toward the outlet of the supply passage 76, and the air ejected from the inlet-side air ejection port 140 flows toward the outlet side of the supply passage 76 and exits the electronic component 110 at the outlet side. To move to.

The outlet side air jet 170 also has a directional component toward the outlet side of the supply passage 76, and the electronic component 110 located on the outlet side of the outlet side air jet 170 of the supply passage 76 is It is sent to the outlet side of the supply passage 76, and the leading electronic component 110 is made to enter the component extracting recess 224. When the air is ejected, the protrusion member 196 is in the lowered position, and the electronic component 110 moves from the supply passage 76 to the protrusion portion 19.
8 is moved up, hits the stopper surface 214 formed on the guide member 204, stops, and is positioned in the component removing recess 224.

The diameter of the outlet side air jet 170 is larger than the diameters of the first and second separating air jets 136 and 138 and the inlet side air jet 140, and the electronic component 110.
Is quickly sent by a large flow rate of air, and the part removing recess 2
Enter 24. This large flow of air
Is released from the air vent hole 158 formed in the
There is no reverse flow inside 6 and there is no pushing back of the electronic component 110 that has entered the supply passage 76 or obstruction of the entry of the electronic component 110 into the supply passage 76.

In the plate 152, an air vent hole 158 is formed closer to the inlet side than the outlet side air jet 170.
The air ejected from the inlet-side air outlet 140 and flowing in the supply passage 76 is also released to the outside, and promotes the flow of air in the supply passage 76 from the inlet side to the outlet side. The combination of the inlet side air ejection port 140 and the air vent hole 158 formed on the inlet side of the outlet side air ejection port 170 is the combination of the feed air ejection port of the first invention and the corresponding escape means. The air is
After ejecting the electronic component 110, it is only ejected for a certain period of time and is not ejected when ejecting the electronic component 110, and the electronic component 110 in the component ejection recess 224 is blown off, raised, or adsorbed by the component when ejecting. The electronic component 110 sucked by the head 22 is not displaced.

As described above, since the electronic component 110 located at the outlet side portion of the supply passage 76 is quickly sent,
Even if the individual component suction heads 22 are positioned at the component suction positions one after another with an extremely short cycle time, the electronic component 110 can be supplied in accordance with the positioning. By ejecting air from the outlet-side air outlet 170, the electronic component 110 is satisfactorily sent in the outlet-side portion of the supply passage 76,
The electronic components 110 are stably sent to the outlet side by the air jet from the inlet-side air jet outlet 140 without being clogged, and the electronic components 110 are aligned in a line in the supply passage 76 with almost no space. Yes, it is supplied without delay with respect to the component pickup operation of the component suction head 22.

After the air is jetted for a predetermined time, the electromagnetic directional control valve 186 is switched to a position where the joint member 180 is opened to the atmosphere, the jet of air is stopped, and the bulk feeder 12 is stopped.
The electronic component 110 is made to stand by in preparation for the next supply of the electronic component 110 in a state where the electronic component 110 has entered the component extraction recess 224. When one bulk feeder 12 continuously supplies a plurality of electronic components 110, the joint member 180 is kept connected to the joint member 178, and after the next electronic component 110 is taken out, air is ejected and the electronic components are ejected. The part 110 is sent.

When the supply of the electronic component 110 by one bulk feeder 12 is completed, the joint member 180 is raised and separated from the joint member 178, and the X-axis slide 44 is moved to move the electronic component 110 next. The feeding bulk feeder 12 is positioned at the feeding position.

As is clear from the above description, in the present embodiment, the first and second separation chambers 116, 118 and the second
The separation air ejection port 138 and the entrance-side air ejection port 140 constitute a separation device, and the compression spring 22 that is the first elastic member.
0, the second elastic member composed of the cover 230 itself,
A drive member drive device including a drive lever 250, which is a drive member provided with the cover engaging portion 254 and the protruding member engaging portion 260, the first and second links 266, 274, the elevating link 270, and the tension spring 280. The cover / thrust member driving device is configured, and the electromagnetic direction switching valve 186 is a control valve that is an air supply stopping means that is a kind of outlet air ejection stopping means.

In the above embodiment, the air jetted from the outlet side air jet 170 was designed to escape through the air vent hole 158.
As shown in FIG. 4, an air vent groove 302 may be formed in the supply passage 300 to allow air to escape.

A fitting groove 306 is formed in the main body 304 of the bulk feeder and opens in the upper surface and extends in the electronic component feeding direction. A pair of passage forming members 308 are fitted in the fitting groove 306. Each of these passage forming bodies 308 is an elongated member having an L-shaped cross section, and is formed in grooves that are symmetrically fitted to the fitting groove 306 and extend in the electronic component feed direction. Is closed by a plate 310 fixed to the main body 304, so that the supply passage 300 is formed.

An outlet side air outlet 314 is formed in the vicinity of the outlet of the supply passage 300. The outlet-side air ejection port 314 is formed in a direction having a directional component toward the outlet side, like the outlet-side air ejection port 170. In addition, an air vent groove 302 is formed which extends from a portion of the pair of passage forming bodies 308 corresponding to the outlet side air ejection port 314 to a position immediately before the outlet, and which opens to an intermediate portion in the vertical direction of the side surface of the supply passage 300. The air vent groove 302 includes the escape hole 316 formed in the passage forming member 308 and the main body 30.
4 is opened to the outside through an opening 318 formed in the No. 4. 320 is a concave part for taking out the component, which opens upward,
It communicates with the outlet of the supply passage 300.

When air is ejected from the outlet side air ejection port 314, the air flows to the outlet side through the gap between the supply passage 300 and the electronic component 110 and the air vent groove 302, and exits the electronic component 110. Move to the side. As shown in FIG. 14, the electronic component 110 is often close to one of the side surfaces of the supply passage 300, and the air is removed from the air vent groove 30.
When it flows in 2, it hits the rear surface of the electronic component 110 and sends the electronic component 110. The air in the air vent groove 302 flows out to the outside through the escape holes 316 and the openings 318, and compared with the case where the air vent groove 302 is not provided, the outlet side air jet port 3
Air can be jetted from 14 at a large flow rate, and the electronic component 110 can be quickly sent.

The air vent groove may be formed in the bottom surface of the supply passage 76 or the bottom surface of the plate 310, and in that case, it is not necessary to use the passage forming member 308. Further, when the air vent groove is formed in the portion formed by the second member 64 of the supply passage 76 and the cover that covers the second member 64,
It can be formed on the side surface of the supply passage 76 without using the passage forming member 308. Further, in the above-described embodiment, the air is ejected only once after taking out the electronic component 110 and waiting for the next taking out, but it may be ejected a plurality of times.

Further, a separation air jet having a directional component toward the inside of the second separation chamber 118 is also provided at a position in the second separation chamber 118 adjacent to the second partition member 128, and the separation air jet is provided. The air ejected from the second separation chamber 1
The electronic components 110 in 18 may be separated.

Further, in the above embodiment, the supply passage has the inclined portion inclined with respect to the horizontal plane and the horizontal horizontal portion, and the horizontal portion is long, but the horizontal portion may be shortened. . For example, the supply passage is inclined with respect to the horizontal plane in the vicinity of the outlet.

Further, the separating device is not limited to the one including the separating chamber, the separating air jet port and the inlet side air jet port, but includes a vibrating device for vibrating the bulk feeder to separate the electronic components by the vibration and to form one line. They may be supplied to the inlet of the supply passage in a state of being lined up.

Further, in the above-described embodiment, the bulk feeder is provided with a plurality of component suction heads and is rotated about one axis to suck electronic components and supply the electronic components to the electronic component mounting apparatus mounted on the printed circuit board. However, the electronic component mounting device that linearly moves in one direction to adsorb and mount electronic components, or the electronic component mounting device that linearly moves in two directions orthogonal to each other in one plane to adsorb and mount electronic components. The present invention can be applied to a bulk feeder that supplies electronic components to an electronic component mounting device or the like. Depending on the configuration of the electronic component mounting apparatus, the bulk feeder is linearly moved in one direction by the moving table as in the above embodiment, or is moved in two directions orthogonal to each other in one plane, or is moved. Instead, the electronic components are supplied with the position fixed.

Further, in the above-described embodiment, the lifting / lowering link of the cover / thrust member driving device is provided with the lifting / lowering member 286.
Although it is driven by a drive device having an index servo motor as a drive source, it may be driven by a drive device having a dedicated drive source different from the index servo motor. The drive device having this dedicated drive source may be provided commonly to a plurality of bulk feeders or may be provided for each bulk feeder.

Further, the second joint member driving device may use an index servomotor as a driving source. However, even in that case, when one bulk feeder continuously supplies a plurality of electronic components, the second joint member should be kept connected to the first joint member while the electronic components are being supplied. It is not essential, but desirable.

Further, the present invention can be applied to a bulk feeder for supplying articles other than electronic parts. Furthermore, the present invention can be implemented in a mode in which the combination of the components of each of the above embodiments is changed. In addition, without departing from the scope of the claims, the present invention can be implemented in various modified and improved forms based on the knowledge of those skilled in the art.

[0090]

[Brief description of drawings]

FIG. 1 is a front view schematically showing an electronic component mounting system including a bulk feed system having a bulk feeder that is an embodiment common to the first to sixth inventions.

FIG. 2 is a front view showing the bulk feed system.

FIG. 3 is a plan view showing the bulk feeder.

FIG. 4 is a front view showing the separating device of the bulk feeder.

FIG. 5 is a front view (partially sectioned) showing the periphery of a component take-out portion of the bulk feeder.

FIG. 6 is a plan view showing the vicinity of a component take-out portion of the bulk feeder.

FIG. 7 is an enlarged plan view (partially sectional view) showing the periphery of the component take-out portion of the bulk feeder.

8 is a sectional view taken along line VIII-VIII in FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a side view showing a state in which the cover is moved to the retracted position when the electronic components of the bulk feeder are taken out.

FIG. 11 is a front view showing a state in which the push-up member is raised to a raised position when the electronic component of the bulk feeder is taken out.

FIG. 12 is a front view (partial cross section) for explaining the push-up of the electronic component by the push-up member when the electronic component of the bulk feeder is taken out.

FIG. 13 is a side sectional view showing a portion on the outlet side of the supply passage of the bulk feeder which is an embodiment common to the first, second, fourth to sixth inventions.

FIG. 14 is a plan sectional view showing a portion on the outlet side of the supply passage of the bulk feeder shown in FIG.

[Explanation of symbols]

 10 Bulk Feed System 12 Bulk Feeder 76 Supply Passage 110 Leadless Electronic Component 114 Storage Chamber 116 First Separation Chamber 118 Second Separation Chamber 138 Second Separation Air Jet 140 140 Inlet Air Jet 158 Air Vent 170 170 Outlet Air Jet port 186 Electronic component direction switching valve 196 Projection member 220 Compression coil spring 224 Component extraction recess 230 Cover 250 Drive lever 254 Cover engaging part 260 Projecting member engaging part 266 First link 270 Lifting link 274 Second link 280 Tensile coil spring 290 Control device 300 Supply passage 302 Air vent groove 314 Outlet side air ejection port

Claims (6)

[Claims] 1. An accommodation chamber for accommodating articles to be supplied in bulk and discharging from an outlet, a supply passage extending from an inlet to an outlet, and provided between the supply passage and the accommodation chamber, A separation device that supplies the articles supplied from the discharge port of the storage chamber to the inlet of the supply passage in a line, and at least one part of the supply passage is formed in a direction having a directional component toward the outlet side. And a release means provided at least on the outlet side of the feed air jet, apart from the gap between the supply passage and the article, to release the air jetted from the feed air jet to the outside. A bulk feeder characterized by containing. 2. The sending air jet port includes an outlet side air jet port formed at a position closer to the outlet than the inlet of the supply passage, and the escape means is at least from the outlet side air jet port. The bulk feeder according to claim 1, wherein the bulk feeder is provided on the outlet side. 3. The escape means includes a plurality of air vent holes which penetrate the peripheral wall of the supply passage in the thickness direction and are formed at a plurality of intervals in the longitudinal direction of the supply passage. Bulk feeder described in. 4. The separation device comprises at least one separation chamber provided between an outlet of the storage chamber and an inlet of the supply passage, and a separation chamber at a position close to the inlet of the supply passage. A separating air ejection port which is formed with a directional component directed toward the separation chamber for ejecting air toward the separation chamber to blow off the articles and separate the article, and a directional component directed toward the outlet at a position close to the inlet of the supply passage. The bulk feeder according to any one of claims 1 to 3, further comprising an inlet-side air ejection port formed as described above. 5. An article taking-out concave portion that communicates with the outlet of the supply passage and is open upward, and a cover that is movable between an action position that closes the opening of the article taking-out concave portion and a retracted position that opens. A protrusion that is movable to a lowered position that forms the bottom surface of the article taking-out concave portion and a raising position that rises from the lowering position to push up the article in the article taking-out concave portion and close at least a part of the outlet of the supply passage. An upper member and a cover / push-up member drive device for moving the cover from the operating position to the retracted position and raising the push-up member from the lowered position to the raised position. Item 5. The bulk feeder according to any one of items 1 to 4. 6. When the cover / push-up member driving device moves the cover and the push-up member to the retracted position and the raised position, respectively, air is substantially discharged from the outlet of the supply passage. The bulk feeder according to claim 5, further comprising an outlet air ejection stopping means that does not eject the air.