JPH0734035Y2 - Goods supply equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to, for example, an article supply device in a mounting machine, and in particular, an article supply device in which a supply form of an article is accommodated in a stack The present invention relates to an article supply device having a function of discharging.

[Prior Art] Conventionally, a plurality of article supply units are provided in an article supply apparatus using a stick, and a discharge mechanism is provided for each article supply unit in order to discharge an empty stack. .

[Problems to be Solved by the Invention] In such a conventional configuration for empty stack discharge,
There is no choice but to provide a drive source for empty stack discharge for each article supply unit, which requires as many drive sources as the number of units, which is expensive and requires a large installation space, which makes the entire supply device large and heavy. The drawback was that the wiring and piping became complicated.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an article supply device which is inexpensive and compact, and which can perform power distribution and piping in one system.

[Means for Solving the Problems] In order to solve the above problems and achieve the object, an article supply device according to the present invention is provided with a slide table slidably provided along one direction, and A plurality of vertically arranged article supply units along one direction, and a stack in which a plurality of articles are accommodated in a stacked state in each article supply unit,
A shutter member that is attached to each article supply unit and that locks the lowermost stack in a closed state; and a claw member that is provided so as to be engageable with the second lowest stack.
A drive source that is arranged in common to all article supply units and that opens the shutter member of one article supply unit to discharge the bottommost stack and also operates the claw member to engage the second stack. It is characterized by having.

[Embodiment] The configuration of an embodiment of the article supply apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the article supply apparatus 10 according to this embodiment.
Includes a base 12 placed on a base (not shown). On one side of this base 12, a gate-shaped main frame
14 are erected. A slide table 16 is slidably arranged on the base 12 along the left-right direction in FIG. A slide mechanism 18 is connected to the slide table 16 so that the slide table 16 can be driven to slide. Also,
As shown in FIG. 2, the slide table 16 is set to be inclined as a whole so that its front portion (right side portion in the drawing) is biased downward.

As shown in FIG. 1, the slide mechanism 18 is installed on a base 12 and has a drive motor 20 having a drive shaft 20a extending along a slide direction A, and rotates integrally with the drive motor 20a. The ball screw 24 is connected in this manner and is rotatably supported by the bearing 22, and the screw receiving portion 26 fixed to the lower surface of the slide table 16 and screwed into the ball screw 24. Since the slide mechanism 18 is configured in this manner, the ball screw is activated by the activation of the drive motor 20.
24 is rotated around its own central axis, and the slide table 16 is slidably driven along the slide direction A via a screw receiving portion 26 that is screwed onto the center axis.

On the other hand, on this slide table 16, the slide direction A
A plurality of, in this embodiment, five article supply units 28, 30, 32, 34, 36 are arranged at equal intervals along the line.
The configuration of these article supply units 28, 30, 32, 34, 36 will be described below.

Here, since each article supply unit 28, 30, 32, 34, 36 is formed in the same configuration, the configuration of the first article supply unit 28 located at the left end in FIG. 1 will be described as a representative. However, the description of the other article supply units 30, 32, 34, 36 will be omitted.
The article supply units 28, 30, 32, 34, and 36 have the same basic structure, but the unit width and the shutter member are adjusted according to the type of the electronic component W to be housed and the shape of the stick S.
50, the shape of the claw member 48 has been changed.

The article supply unit 28 is provided with a plurality of elongated stays S ₁ , S ₂ , ... Which extend inside along the lateral direction in a stacked state. Each of the stacks S ₁ , S ₂ ,. In addition, the plurality of electronic components W are
IC device is stored. This goods supply unit 28
Supplies (in the description below, the lowermost Suteitsuku indicated at S _1, showing a second Suteitsuku from below by the symbol S _2.) Suteitsuku located lowermost from S _1, sequentially electronic components W Is configured.

That is, this article supply unit 28 is provided with the slide table 16
A gate-shaped unit frame 38 is provided upright on the front part of the left end of the. In the unit frame 38, a plurality of stacks S ₁ , S ₂ , ... Are sequentially stacked from the bottom, and the stacks S ₃ , S ₃ and S which are the third or higher from the bottom among the stacks are provided.
_4, ... it is housed in the cover member 40 attached to the Units - frame 38. In addition, each status S ₁ , S ₂ ,
Are set in parallel with the slide table 16, in other words, the front ends of the slide tables 16 are provided in a state of being biased downward and inclined.

Here, each of the links S ₁ , S ₂ , ... Is formed in an elongated shape so as to extend along a direction orthogonal to the sliding direction A, and an outlet for taking out the electronic component W is formed on the lower surface of the front end. Has been done. The outlets of the second or more stacks S ₂ , S ₃ , ... From the bottom are closed by the upper surfaces of the stacks S ₁ , S ₂ ,. In this way, the stack S ₁ located at the bottom is
The electronic components W are sequentially taken out only from the taking-out port. When one electronic component W is taken out downward from the take-out port, based on the inclination of the stick S ₁ ,
It is set so that the next electronic component W moves to the take-out port by its own weight.

On the other hand, as shown in FIG. 1, behind the unit frame 38, a pair of swing arms 42 are arranged in a state of being located on both sides of the plurality of stored stacks S ₁ , S ₂ ,. There is. As shown in FIG. 2, these swing arms 42 have shafts 46 attached to a sub-frame 44 attached so as to extend rearward from the unit frame 38 at the vertical center thereof.
Through the vertical plane including the axis along the slide direction A (second
A shaft is swingably supported within a plane perpendicular to the plane of the drawing). Here, the lower end of each swing arm 42 is set so as to be positioned just diagonally below the side edge of the _second stack S ₂ from the bottom. pawl member 48 which engages from below is attached to _2.

The upper end of the shutter member 50 is rotatably supported on the lower end of each claw member 48. The shutter member 50 has an intermediate portion at the unit frame 38 and the slide table 16.
The swing member 42 is attached to the support member 52, and the swing arm 42 is supported by the shaft 54 supported in a state of being set in parallel with the shaft 46 described above.
Is pivotally supported so as to swing in the same plane as. And
The lower end of each shutter member 50 is set so as to be located immediately below the lower edge of the lowermost stack S ₁ .

Here, the lower end portions of the two shutter members 50, 50 are urged by coil springs 56 shown in FIG. Then, with the biasing force of the coil spring 56 in a state in which both shutter members 50, 50 are in close proximity, the lowermost stack S ₁ is locked by these shutter members 50, 50 and is prevented from falling downward. . In other words,
With the shutter members 50, 50 closed close to each other, all the stacks S ₁ , S ₂ , ... Stored in the article supply unit 28 are well held in the stacking position.

In the state where both shutter members 50, 50 are closed,
The claw member 48 is brought to a standby position separated from the second lowest stack S ₂ .

On the other hand, an empty stack discharge mechanism (that is, a shutter opening mechanism) 58 for individually taking out and discharging the empty stack S ₁ is provided above the article supply unit 28. The empty-stick discharging mechanism 58 includes a button 62 that is vertically movable on a support piece 60 that is mounted so as to extend rearward from the upper end of the unit frame 38, the lower end of the button 62, and the above-described swing arms. Each article supply unit 28, 30, 32, 34, 36 is provided with a pair of connecting rods 64, 66 for rotatably connecting the upper end of 42 to each article supply unit 28, 30, 32, 34. A cylinder device 68 is provided as a drive source common to the and 36.

As shown in FIG. 1, the cylinder device 68 includes a cylinder body 70 disposed in the central portion of the upper portion of the main frame 14.
And a piston rod 72 that is provided so as to be able to project downward from the cylinder body 70. Here, the lower end of the piston rod 72 is pressed from above by any one button 62 of the article supply units 28, 30, 32, 34, 36 that has slid immediately below the piston rod 72 in response to the drive of the slide mechanism 18. It is positioned so that it can touch and push it down.

As described above, since the empty-stack discharge mechanism 58 is configured, any one of the five article supply units 28, 30, 32, 34, 36 (here, the first article supply unit). 28)), if the lowermost stack S ₁ becomes empty, this empty stack S ₁
The first article supply unit 28 including S ₁ has a slide mechanism.
In response to the driving of 18, the cylinder device 68 is slid so as to be located immediately below the cylinder device 68.

When the cylinder device 68 is activated from this state and the piston rod 72 is pushed down, the button 62 provided on the first article supply unit 28 is pushed down in response to the depression. As a result, since the lengths of both connecting rods 64 and 66 are constant, the swing arm 42 to which they are connected is
The shaft 46 is rotated so that its upper end is biased outward and its lower end is biased inward. In this way, the claw member 48 attached to the lower end of the swing arm 42 engages with the second stack S ₂ from the bottom from below and lifts it upwards, so that the stack S _{1 at} the bottom stage. (I.e. empty stack).

On the other hand, in synchronization with the lifting of the second stack S ₂ from the bottom of the claw member 48, both shutter members 50 are coil springs 56.
It is biased and opened so as to be separated from each other against the biasing force of. By the opening operation of the shutter members 50, 50, the empty stack S ₁ at the bottom is dropped by its own weight and taken out downward. In this way, the empty stack S ₁ is reliably taken out from the article supply unit 28.

Here, on the slide table 16 located below each article supply Yunitsuto 28,30,32,34,36, as shown in FIG. 2, the electronic component W taken out Suteitsuku S ₁ of the lowermost
Guide rails 74 for receiving and transporting to a predetermined position are provided. Each of the guide rails 74 is arranged in parallel with the slide table 16, that is, with the front end thereof being inclined downward with respect to the horizontal plane. Here, the electronic component W dropped from the outlet of the lowermost stack S ₁ is placed on the guide rail 74,
According to the inclination of 74, the front side in FIG. 1, that is, the second side
It is conveyed by its own weight toward the right side in the figure.

On the other hand, above the right end portion in FIG. 2 which is the terminal end portion of the guide rail 74, the electronic component W conveyed up to this point is picked up and mounted on a predetermined mounting board (not shown). A head mechanism 76 is provided. Also,
A photo coupler 76 for determining whether or not the electronic component W is present is arranged above the position where the head mechanism 76 is disposed by one electronic component W on the article supply unit 28 side. It is set up.

That is, when the electronic component W to be picked up by the head mechanism 76 is next waiting, the photo coupler 76 does not operate, and when it is not waiting next, the photo coupler 76 is not working.
The 76 is configured to operate and detect that the next mounting operation is not performed.

In the article supply apparatus 10 configured as described above, the empty stick discharging operation, which is a feature of the present invention, will be described in association with the electronic part W supplying operation.

First, in each article supply unit 28, 30, 32, 34, 36,
As shown in FIG. ₁ , the electronic components W housed inside the lowermost stack S ₁ are sequentially placed on the corresponding guide rails 74 located below through the outlet formed in the stack S _1. It falls and is transported forward based on the inclination of the guide rail 74. Here, when one electronic component W from falling from the mouth extraction, then the electronic component W is located at Suteitsuku S within _1, based on the inclination of Suteitsuku S _1, it is set as conveyed to outlet There is.

On the other hand, the electronic component W transported while sliding on the guide rails 74 is mounted on a predetermined mounting board (not shown) by being picked up by the head mechanism 76. Here, one electronic component W is picked up by the head mechanism 76, and the guide rail 74 is vacated by the picked up amount. However, the next electronic component W is guided by the vacant space. Based on the inclination of the guide rail 74, it slides on the guide rail 74 and moves to a position where it is picked up by the head mechanism 76. At the same time, the electronic component W located immediately below the outlet of the stack S ₁ also slides by one electronic component, and into this empty space, the next electronic component W from the outlet of the stack S ₁ is inserted. Is falling. In this way, one electronic component W is picked up by the head mechanism 76, so that the electronic components W to be withheld next are conveyed one after another in the state of being sequentially sent out.

Further, this conveyance state is constantly monitored by the photocoupler 78, and when it is detected that the electronic component W does not exist on the guide rail 74 located immediately below the photocoupler 78, the corresponding article supply unit (here , For convenience of explanation, it is determined that the stack S _{1 at} the bottom of the first article supply unit 28 is empty and the article supply is stopped. In this way, this photo coupler 78
Outputs an empty-stick generation signal.

When this empty-stick generation signal is output, the slide mechanism 18 is activated, the drive motor 20 is rotationally driven, and the first article supply unit 28 having an empty stack is operated by the cylinder device.
The slide table 16 slides so as to be located immediately below the 68. Then, with the first article supply unit 28 positioned immediately below the cylinder device 68, the drive motor 20 is stopped, the cylinder device 68 is subsequently activated, and the piston rod 72 thereof is pushed down from the cylinder body 70. To be

In response to the depression of the piston rod 72, the button 62 of the first article supply unit 28 is similarly depressed, and the pair of swing arms 42 connected to each other via the pair of connecting rods 64 and 66 is connected to the shaft 46. As the center, it swings so that its upper end is biased outward and its lower end is biased inward. As a result, as shown in FIG. 3, the claw member 48 attached to the lower end of each swing arm 42 lifts the _second stick S ₂ from the bottom, and at the same time, the shutter member 50 attaches the coil spring 56. It will be opened against the forces and the empty stick will be ejected onto the guide rail 74. The empty stack discharged in this way slides on the guide rail 74, falls from the end thereof, and is stored in an empty stack storage box (not shown).

On the other hand, when the empty stack discharging operation is completed in this way, the cylinder device 68 is activated again, and this time, the piston rod 72 is pulled up so as to be housed in the cylinder body 70. As a result, the oscillating arm 42 returns to its original standing state based on the urging force of the coil spring 56, and the pawl member 48 moves to the second stack S ₂ from the bottom (at this point, to be exact, an empty stack). Is being discharged,
It is said to be the bottom stack S ₁ . ), The shutter member 50 is closed at the same time. As a result, the stack that has been disengaged from the claw member 48 falls onto the shutter member 50 due to its own weight, and the supply operation of the electronic component W is started from the outlet of the stack as the lowermost stack S _1. become.

In this way, a series of empty stack discharging operations are completed, and the predetermined electronic components W are sequentially supplied from the article supply units 28, 30, 32, 34, 36.

As described above in detail, in this embodiment, the empty stack discharging mechanism 58 for discharging the empty stack is
A cylinder device 68 common to all the article supply units 28, 30, 32, 34, 36 is provided. Thus, in this embodiment, the empty-stack discharge drive source conventionally provided for each article supply unit is eliminated, and instead, the empty-stack discharge mechanism 58 having a simple structure is provided. This is a product that realizes the discharge of empty stacks during the above operation, and that the cylinder device 68 as the drive source of the mechanism is shared by all the units to be a single unit, which is reasonably priced, compact, and has simple power distribution and piping. It is possible to provide a supply device.

It is needless to say that the present invention is not limited to the configuration of the above-described embodiment and can be variously modified without departing from the gist of the present invention.

[Advantages of the Invention] As described in detail above, the article supply apparatus according to the present invention is provided with a slide table slidably provided along one direction, and a plurality of slide tables are installed upright on the slide table along the one direction. The article supply unit, the stacks accommodated in each article supply unit in a stacked state, the plurality of articles accommodated therein, and the stack attached to each article supply unit and the stack at the bottom in the closed state. A shutter member to be hooked, a claw member that is provided so as to be engageable with the second from the bottom, and a common member for all article supply units, and the shutter member of one article supply unit is opened to open the lowest stage. And a drive source for causing the claw member to operate so as to engage with the second stick.

Therefore, according to this invention, it is cheap, compact, power distribution,
An article supply device that can perform piping in one system will be provided.

[Brief description of drawings]

1 is a front view showing the configuration of an embodiment of the article supply apparatus according to the present invention; FIG. 2 is a side view of the article supply apparatus shown in FIG. 1; and FIG. 3 is an article shown in FIG. It is a front view which shows a supply apparatus in the state in which the empty-stick discharge mechanism operated. In the figure, 10 ... article supply device, 12 ... base, 14 ... main frame, 16 ... slide table, 18 ... slide mechanism, 20 ... drive motor, 20a ... drive shaft, 22 ... bearing , 2
4 ... Ball screw, 26 ... Screw receiving part, 28 ... First article supply unit, 30 ... Second article supply unit, 32 ...
... third article supply unit, 34 ... fourth article supply unit, 36 ... fifth article supply unit, 38 ... unit frame, 40 ... cover member, 42 ... swing arm, 44 ...
… Subframe, 46 …… Shaft, 48 …… Claw member, 50 …… Shutter member, 52 …… Support member, 54 …… Shaft, 56 …… Coil spring, 58 …… Empty stack discharge mechanism, 60 …… Support One side, 62 ... Button, 64; 66 ... Connecting rod, 68 ... Cylinder device, 70 ... Cylinder body, 72 ... Piston rod, 74 ... 74 ... Guide rail, 76 ... Head mechanism, 78 ...
… It ’s a photo coupler.

Claims (1)

[Scope of utility model registration request] 1. A slide table provided slidably along one direction, a plurality of article supply units vertically installed on the slide table along the one direction, and a state of being stacked in each article supply unit. , A stack member that accommodates a plurality of articles inside, and a shutter member that is attached to each article supply unit and that locks the lowermost stack in the closed state, and engages with the second stack from the bottom. A claw member that can be installed is provided in common with all article supply units, and the shutter member of one article supply unit is opened to discharge the lowest stack, while the claw member is used to eject the second stack. And a drive source for operating the article supply apparatus.