JP2777518B2 - Automatic transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic transfer device for automatically loading a work carried out from, for example, a press machine on a predetermined pallet.

[0002]

2. Description of the Related Art For example, various devices are used for automatically loading a work such as a panel component carried out from a transfer press machine on a predetermined pallet. As this type of device, there is known a device configured to sort a work conveyed intermittently in a relatively short time into a plurality of transport paths and then automatically load the work onto a pallet in a plurality of transfer units. (See JP-A-62-83970).

[0003]

However, in the above-mentioned prior art, since a plurality of transfer sections are dispersed over a wide area in a plane, the area occupied by the transfer sections is considerably increased. Has been pointed out. Therefore, in order to effectively utilize the space in the vertical direction, it is conceivable to prepare upper and lower two-stage conveyors, position the work distributed to each conveyor at a predetermined payout position, and load the work on a pallet.

The present invention uses this type of two-stage conveyor, and particularly, when a robot or the like that loads a work conveyed by one conveyor onto a pallet breaks down, the work of loading the work on another conveyor is continuously performed. It is an object of the present invention to provide an automatic transfer device that can perform the repairing of the failed robot or the like easily.

[0005]

In order to achieve the above-mentioned object, the present invention relates to a method in which a work carried out of a press machine is placed in a first place.
An automatic transfer device for selectively transferring the work to the first payout position and the second payout position so as to be accommodated in the pallet at the payout position or the second payout position, and is configured in two vertical stages. A lower conveyor and an upper conveyor,
A sorting conveyor for selectively sorting the work carried out from the press machine to the lower conveyor and the upper conveyor, and a first work for positioning the work sorted to the lower conveyor in correspondence with the first discharge position. Positioning means, second work positioning means for positioning the work distributed to the upper conveyor corresponding to the second payout position, and evacuation means for separating the second work positioning means from the second payout position; It is characterized by having.

Further, the retracting means includes a rotating body provided in the second work positioning means, and a guide rail extending from the second dispensing position toward the first dispensing position and rolling the rotating body. It is preferable to provide:

[0007]

In the above-described automatic transfer device according to the present invention, the work carried out from the press machine is selectively sorted to the lower conveyor and the upper conveyor via the sorting conveyor, and then the first positioning means or the first positioning means. (2) It is positioned by the positioning means and is automatically loaded on a pallet via a robot or the like. Here, when a failure occurs in the second positioning means, the robot at the second payout position, or the like, the work carried out from the press machine is continuously sorted to the lower conveyor and loaded on the pallet at the first payout position. Therefore, the work loading operation is not interrupted. In addition, the second positioning means is connected to the second
Since the worker is separated from the payout position, the operator can easily repair the robot or the like at the second payout position.

Further, since the retracting means comprises the rotating body and the guide rail, the second work positioning means can be smoothly and easily retracted from the second dispensing position toward the first dispensing position.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an automatic transfer apparatus according to the present invention.

In FIG. 1, reference numeral 10 indicates an automatic transport apparatus according to the present embodiment. This automatic transfer device 10
The work W such as a panel carried out from the transfer press machine 12 is moved to the first payout position P1 or the second payout position P2.
The work W is selectively transferred to the first payout position P1 and the second payout position P2 in order to be accommodated in the pallet 14 by the lower conveyor 16 configured in two stages, upper and lower.
And the upper conveyor 18, the sorting conveyor 20 for selectively sorting the work W carried out from the transfer press machine 12 to the lower conveyor 16 and the upper conveyor 18, and the work W sorted to the lower conveyor 16. First work positioning means 22 for positioning corresponding to the first payout position P1, and the upper conveyor 1
8 is moved to the second payout position P2.
Work positioning means 24 for positioning according to
And a retracting means 26 for separating the second work positioning means 24 from the second payout position P2.

Extending from the transfer press machine 12 are two rows of unloading conveyors 28 and 28a. At the downstream end of the unloading conveyor 28 in the transport direction (the direction of the arrow X), a vertical sorting conveyor 20 is disposed. As shown in FIG.
The sorting conveyor 20 includes a column 30 fixed to an end of the unloading conveyor 28, and a support shaft 32 is rotatably provided above the column 30.
Is fixed to one end of the frame body 34. A rotary drive source 36 is provided below the frame 34, and one end of a crank 40 is swingably supported via a gear train 38 connected to the rotary drive source 36. One end of a rod 42 is rotatably connected to the other end of the crank 40, and the other end of the rod 42 is rotatably connected to the lower surface of the frame 34. This frame 3
A balancer 44 is engaged with the lower surface of the frame 4, and the balancer 44 urges the frame body 34 upward.

A drive motor 4 is provided below one end of the frame 34.
The drive pulley 50 is connected to the drive motor 46 via drive transmission means 48 such as a chain and a sprocket.
An endless belt 54 is stretched.

The lower conveyor 16 has a frame 58 supported in a horizontal direction with respect to a column 56, and a drive motor 60 is fixed to an end of the frame 58. This drive motor 60
A steel slat belt 62 is connected to the rotating shaft via a drive transmission means such as a belt or a chain, and the steel slat belt 62 travels around in a conveying direction in the arrow X direction.

The support 56 is provided with a pusher 64 which is located above the lower conveyor 16 and which can move forward and backward in a direction (arrow Y direction) intersecting the direction of rotation of the steel slat belt 62. The pusher 64 includes a guide rail 66 that is supported by the support column 56 and is long in the direction of the arrow Y, and a rack member 68 that is long in the direction of the arrow Y is fixed to the guide rail 66. A moving body 70 is supported on the guide rail 66 and the rack member 68 via a plurality of rollers 71, and meshes with the rack member 68 on a rotating shaft of a traveling motor 72 provided on the moving body 70. The pinion 74 is fixed. An extruding member 76 for extruding the workpiece W in the direction of the arrow Y is attached to the moving main body 70.

The upper conveyor 18 is provided with the lower conveyor 1.
6, and the same components are denoted by the same reference numerals and detailed description thereof will be omitted (see FIGS. 2 and 3).

As shown in FIG. 4, a transfer conveyor 78 is disposed near the end of the lower conveyor 16 and the end of the first work positioning means 22. This transfer conveyor 78
Is provided with an endless belt 80 that can run around by a rotation drive source (not shown), and the endless belt 80 conveys the work W in the direction of the arrow Y.

As shown in FIG. 1, the first work positioning means 22 includes a frame 81 arranged corresponding to the first payout position P1, and the drive motor 8 fixed to the frame 81.
2, the steel slat belt 84 travels in the direction of the arrow Y. A positioning cylinder unit 86 for positioning the work W is disposed on a side of the steel slat belt 84.

Above the transfer conveyor 78 and the first work positioning means 22, there is provided a lower frame 88 which is long in the direction of arrow Y, and the second work positioning means 24 is mounted on the lower frame 88. You. The second work positioning means 24 is configured similarly to the first work positioning means 22, and the same components are denoted by the same reference numerals and detailed description thereof will be omitted. A plurality of support portions 90 are provided on the lower surface of the frame 81 constituting the second work positioning means 24 in a downward direction.

As shown in FIG. 5, the retracting means 26 is provided on the upper part of the lower frame 88 and has a guide rail 92 which is long in the direction of arrow Y and a frame 81 which constitutes the second work positioning means 24. A roller (rotating body) 94 is provided on the support portion 90 and is rotatable along the guide rail 92. One of the support portions 90 is provided with a stopper member 96 for engaging with the guide rail 92 and fixing the second work positioning means 24 to the second discharge position P2.

The configuration of the unloading conveyor 28 has been described above. The unloading conveyor 28a has the same configuration, and the same components are denoted by the same reference numerals with the letter a and detailed description thereof is omitted. (See FIG. 1).

At each of the first payout positions P1 and P1a and at the second payout positions P2 and P2a, loading robots 100 are disposed, and pallets 14 are disposed on both sides of each loading robot 100. An empty pallet arrangement portion 104 is provided near the first work positioning means 22a, and is configured so that the pallet 14 can be used cyclically.

Next, the operation of the automatic transport apparatus 10 configured as described above will be described.

As shown in FIG. 1, the work W sent out from the transfer press machine 12 is carried out by a carry-out conveyor 28,
It is mounted on 28a and transported in the direction of the arrow X, and inspectors inspect the molding quality and the like. Then, if there is no abnormality, the work W is carried into the sorting conveyors 20 and 20a.

The work W sent from the unloading conveyor 28 is distributed to the first unloading position P1 via the sorting conveyor 20.
When transported to the rotary drive source 36, as shown in FIG.
The crank 40 is swung under the action of, and the swinging tip side of the frame 34 connected to the rod 42 is swung downward. Then, the drive pulley 50 is rotated under the action of the drive motor 46, and the endless belt 5 engaged with the drive pulley 50 is rotated.
4 travels around. Therefore, the work W sent from the unloading conveyor 28 is placed on the endless belt 54 and is conveyed to the lower conveyor 16.

In the lower conveyor 16, the drive motor 6
The work W sent from the sorting conveyor 20 is conveyed onto the steel slat belt 62 while the steel slat belt 62 is running around.
Next, the traveling motor 72 constituting the pusher 64 is driven to move the moving body 70 in the direction of the arrow Y via the pinion 74 and the rack member 68, and the work W is placed on the transfer conveyor 78 under the pressing action of the pushing member 76. Is placed.
The work W is further placed on the steel slat belt 84 under the action of the transfer conveyor 78 and the drive motor 82 of the first work positioning means 22, and then positioned via the positioning cylinder unit 86.

The workpiece W positioned at the first payout position P1 is held by the loading robot 100 and
4 automatically loaded. This pallet 14 is replaced with an empty pallet 14 after a predetermined number of works W are loaded.

On the other hand, when the work W is transported to the second payout position P2, the frame 3
4 swings the swinging tip side upward under the action of the rotary drive source 36, and moves the upper conveyor 1 from the sorting conveyor 20.
The work W is sent out to the position 8. Then, work W
Is conveyed to the second work positioning means 24 via the pusher 64 provided on the upper conveyor 18, is positioned at the second payout position P <b> 2, and is loaded on the predetermined pallet 14 by the loading robot 100.

The work W sent out to the unloading conveyor 28a is sorted downward or upward by the sorting conveyor 20a and transferred to the lower conveyor 16a or the upper conveyor 18a, like the unloading conveyor 28 described above. Then, the work W is conveyed in the direction of the arrow Ya under the action of the pusher 64a and positioned at the first payout position P1a or the second payout position P2a, and then loaded onto the predetermined pallet 14 by the loading robot 100.

When the loading robot 100 disposed corresponding to the second unloading position P2 breaks down, the sorting conveyor 20 is swung downward to remove the workpiece W sent out from the unloading conveyor 28. If the workpiece W is always conveyed to the lower conveyor 16, the work of paying out the work W is continued at the first payout position P1. For this reason, the work of paying out the work W is not unnecessarily interrupted, and the work can be efficiently performed.

Further, in the present embodiment, the second work positioning means 24 is connected to the first payout position P via the retracting means 26.
It is configured to be movable to one side. Therefore, when the loading robot 100 disposed at the second payout position P2 breaks down, first, as shown in FIG. 5, the stopper member 96 is separated from the guide rail 92, and then the second work positioning means 24 is configured. When the frame 81 to be pulled is pulled in the direction of the arrow Y, the frame 81 is smoothly moved in the direction of the arrow Y under the guiding action of the rollers 94 and the guide rails 92 constituting the retracting means 26. As a result, the second work positioning means 24 is separated from the second payout position P2, and the loading robot 1 arranged corresponding to the second payout position P2.
00 is easily and quickly performed.

In this embodiment, the lower conveyor 16 and the upper conveyor 18 are provided in two stages, and the work W is selectively transferred to the lower conveyor 16 and the upper conveyor 18 by the sorting conveyor 20. Supplying. For this reason, there is an advantage that a flat space can be reduced at once, as compared with the related art, and the space in the workplace can be effectively used.

[0032]

According to the automatic transfer device according to the present invention, the following effects can be obtained.

The work carried out from the press machine is selectively sorted up and down via a sorting conveyor.
Since the pallet is automatically loaded via a robot or the like, a planar space can be reduced. Here, if a failure occurs in the second positioning means, the robot at the second payout position, or the like, the work carried out from the press machine is
Since the workpieces are continuously sorted to the lower conveyor and loaded on the pallet at the first dispensing position, the loading operation of the work is not interrupted. Moreover, since the second positioning means is separated from the second payout position via the retreating means,
The operator can easily and quickly perform a repair work on the robot or the like at the second payout position.

Further, since the retracting means comprises the rotating body and the guide rail, it is possible to smoothly retract the second work positioning means from the second dispensing position toward the first dispensing position.

[Brief description of the drawings]

FIG. 1 is an explanatory perspective view of an automatic transport device according to an embodiment of the present invention.

FIG. 2 is a side view of a sorting conveyor, a lower conveyor, and an upper conveyor that constitute the automatic transport device.

FIG. 3 is a plan view of the sorting conveyor and the upper conveyor.

FIG. 4 is a schematic explanatory view of conveyors arranged in the directions of arrows Y and Ya of the automatic transport device.

FIG. 5 is an explanatory view of a second work positioning means and a retreating means constituting the automatic transfer device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Automatic conveyance apparatus 12 ... Transfer press machine 14 ... Pallet 16, 16a ... Lower conveyor 18, 18a ... Upper conveyor 20, 20a ... Sorting conveyor 22, 22a, 24, 24a ... Work positioning means 26, 26a ... Evacuation means 28 , 28a ... conveyer 34 ... frame 62, 62a ... steel slat belt 64, 64a ... pusher 70, 70a ... moving body 76, 76a ... extrusion member 78, 78a ... transfer conveyor 81 ... frame 84 ... steel slat belt 92 ... Guide rail 94: Roller 100: Loading robot

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ identification code FI B65H 29/58 B65H 29/58 C 29/60 29/60 E (58) Investigated field (Int.Cl. ⁶ , DB name) B21D 43/22 B21D 45/00 B65G 47/68 B65H 29/60

Claims (2)

(57) [Claims] A work carried out from a press machine is stored in a pallet at a first payout position or a second payout position.
An automatic transfer device for selectively transferring the work to the first dispensing position and the second dispensing position, wherein the lower conveyor and the upper conveyor configured in two stages, upper and lower, are unloaded from the press machine. A sorting conveyor that selectively sorts the work that has been sorted to the lower conveyor and the upper conveyor, a first work positioning unit that positions the work sorted to the lower conveyor in accordance with the first payout position, A second work positioning means for positioning the work allocated to the conveyor corresponding to the second payout position; and a retreating means for separating the second work positioning means from the second payout position. Automatic transfer equipment. 2. The automatic transport apparatus according to claim 1, wherein said retracting means includes a rotating body provided in said second work positioning means, and extends from said second payout position toward said first payout position. And a guide rail on which the rotating body rolls.