JP2550761Y2 - Plate material 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 improvement of an apparatus for taking in sheet materials one by one from a take-in station and supplying it to a processing position such as a press machine.

[0002]

2. Description of the Related Art Various devices have been developed as plate material supply devices such as press machines and have been put to practical use.
It is already known to alternately reciprocate two carriers in order to increase the speed of supplying the plate material. In this case, the two transporters are configured to move on different outward and return paths in order to avoid interference with each other during the reciprocating movement. For this reason, the support mechanism and the drive mechanism of the carrier are complicated. On the other hand, in the conventional apparatus, the two transporters are alternately reciprocated by an air cylinder or the like, so that a driving unit is required for each transporter, and an alternate movement between the two driving units is required. Special control is required to achieve synchronization.

[0003]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to make two carriers reciprocate so that they do not interfere with each other and that they can be driven synchronously by one drive source.

[0004]

To achieve the above object, the present invention arranges two carriers on the same plane so as not to interfere with each other, and provides a two-stage cylinder and a chuck on the lower surface of these two carriers. By setting the chuck to the feed height when the transport body advances when transporting the plate material, and by setting the chuck to a height higher than the feed height when the transport body retreats, the transport body and the cylinder or chuck integrated therewith To avoid interference. In addition, the present invention
In order to alternately reciprocate the two carriers, a pair of racks and one pinion are used, and reciprocating rotational motions of the pinions simultaneously transmit reciprocating motions in different directions to the two carriers. More specifically,
The installation (1) has horizontal guides (31, 3) on the machine frame (2).
2) is fixed in the feed direction, and each guide body (31, 32) is
To move the two comb-toothed carriers (41, 42) in the feed direction.
Reciprocally movable and installed without interference
Together with each carrier (41, 42).
Two-stage downward cylinder corresponding to every number of stations
(51, 52, 61, 62) in accordance with the area of the plate material (15).
And two-stage cylinders (51, 52, 6
Chucks (71, 72, 81, 8)
2, 91, 92) and two carriers (41, 4).
2) A pair of racks (1
1, 12) is fixed, and between a pair of racks (11, 12).
The pinion (10) is placed in mesh with the
By connecting the reciprocating drive source (16) to the ON (10)
It is configured. Then, the plate material transfer device (1)
It is controlled by a control device (17). System
The control device (17) controls the reciprocating drive source (16).
The two-stage syringe is used when the carrier (41, 42) advances.
Operate the chucks (51, 52, 61, 62)
(71, 72, 81, 82, 91, 92)
Then, the chuck (71,
72) is set higher than the feed height, and the plate material (15)
At the take-in station when taking two sheets
Based on the signal from the detector (18) for detecting
The plate material (15) is moved by the retreat of the two carriers (41, 42).
The control for transferring to the discharge station is executed.

[0005]

1, 2, 3, and 4 show the construction of a sheet conveying apparatus 1 according to the present invention. The plate material transporting apparatus 1 is assembled by a machine frame 2, and a pair of guides 31 is provided on the upper and lower surfaces of the crosspiece of the machine frame 2 along the feed direction.
32 are attached in parallel. These guides 31 and 32 are the sliders 1 of the two transports 41 and 42.
3, 14 are slidably supported. In addition,
As shown in FIG. 4, the state of connection between the lower guides 31 and 32 and the sliders 13 and 14 combined therewith is as shown in FIG.
In order not to fall down, they are combined so as to be slidable only in the transport direction by a dovetail groove, or rolled and movable by rollers or the like (not shown).

The two transporters 41 and 42 are formed in a comb-tooth shape which is substantially coplanar with each other and does not interfere with each other when viewed in a plan view. , At a distance corresponding to the distance between the supply station C and the discharge station D, the three groups of front side, middle, and rear side,
The cylinders 51, 52, 61, and 62 are provided with front-side chucks 71 and 72, intermediate chucks 81 and 82, and rear-side chucks 91 and 92 at their lower ends in a downward state.

The two cylinders 51, 61 and the two cylinders 52, 62 are vertically connected in two stages as shown in FIG. Upper cylinder 51,
52 is a chuck 71, 72, 81, 82, 9 at the lower end.
After taking in the plate material 15 at 1, 92, when supplying,
When the plate 15 is maintained at the height H1 for conveyance and the conveyance bodies 41, 42 are retracted, the chucks 71, 72,
81, 82, 91, and 92 are provided to set the retreat height H2 higher than the transport height H1, and the lower cylinders 61 and 62 pick up the plate 15 at the loading station A. Installed for.

In the retreat position of the transport bodies 41, 42, the position corresponding to the take-in station A, that is, the middle two-stage cylinders 51, 52 are longer than the other ones. I can do it. Correspondingly, the carriers 41 and 42 project upward at a position corresponding to the loading station A.
These cylinders 51, 61, 52, 62 and chucks 71, 81, 91, 72, 82, 92 are arranged uniformly over the entire area according to the area of the plate material 15 to be transported.

A pair of racks 11 and 12 are fixed to, for example, opposite positions on both sides of the two transfer bodies 41 and 42, and a pinion 10 is provided so as to mesh with them. The pinion 10 is driven by a reciprocating drive source 16, which is controlled by a control device 17. The control device 17 detects the rotation angle of the reciprocating drive source 16, for example, a motor, and gives reciprocating rotational movement, and also expands and contracts the cylinders 51, 52, 61, 62, and chucks 71, 72, 81, 82, 91. , 92
In addition to the control of the suction operation, the two sheets (double blank) of the plate 15 are detected by, for example, the detector 18, and the necessary operation is performed at that time.

The take-in station A is provided with a lifter 19 for supplying the plate 15 in a stacked state, and the positioning station B is provided with a positioning device 20.
The press station 21 and the like are installed at the supply station C, and the holding device 22 for the two-sheet board 15 is installed at the discharge station D. FIG.
6 and 7 illustrate the operation sequence of the plate material transporting device 1. By rotating the reciprocating drive source 16 reciprocally, the control device 17 gives a reciprocating linear motion of the feed amount L to the two carriers 41 and 42 by the pinion 10 and the racks 11 and 12. Of course, the feed amount L corresponds to the distance between the take-in station A, the positioning station B, the supply station C, and the discharge station D.

In the process in which the two carriers 41 and 42 alternately advance and retreat, as shown in FIG. 5, when the carrier 42 is at the retreat position, the front cylinder 62 and the chuck 72 move to the position of the positioning station B. Picking up the plate 15 in the position at the position, picking up to the height of the transport height H1, and the intermediate cylinder 62 sucks the plate 15 at the loading station A by the chuck 82,
It is held at the transport height H1. At this time, the cylinders 51 and 61 of the other carrier 41 are all chucks 71 and
81 and 91 are held at a height H2 slightly higher than the height H1.

Next, as shown in FIG. 6, the control device 17 moves the transport body 42 forward by the feed amount L and lowers the front cylinder 62, thereby moving the plate 15 in the positioned state to the supply station C. The sheet material 15 is supplied to the positioning station B. After the supply is completed, the cylinders 52 and 62 raise the empty chucks 72, 82 and 92 to the height H2. On the other hand, the transport body 41 at the retreat position lowers the cylinders 51 and 61, takes in the plate material 15 by the intermediate chuck 81, picks up the plate material 15 from the station A, and removes the plate material 15 positioned by the front chuck 71 at the positioning station B. It is picked up and held at the transport height H1.

Thereafter, as shown in FIG.
Supplies the plate material 15 to the supply station C and supplies the other plate material 15 to the positioning station B. Of course, after retreating, the transfer body 42 picks up a new plate member 15 from the loading station A, picks up the plate member 15 in the positioning state from the positioning station B, and prepares for the next transfer.

When the loading station A picks up, for example, the plate material 15 and the double blank occurs, the detector 18 generates a double blank signal and sends it to the control device 17. Therefore, the control unit 17 lowers the cylinders 51 and 61 on the rear side of the transporting body 41 that is moving forward, thereby holding the picked-up plate material 15 with the chuck 91, and discharges the sheet material when the transporting body 41 retreats thereafter. It is transported to the station D and dropped there. Similarly, when a double blank occurs on the plate 15, the cylinders 52, 62 and the chuck 92 on the rear side of the carrier 42 are carried to the discharge station D when retracted, and when a double blank occurs on the plate 15, the carrier 41 The cylinders 51 and 61 and the chuck 91 discharge the plate material 15 in the overlapping state to the discharge station D. Therefore,
Although the continuous supply of the plate material 15 is delayed by the time required for discharging the double blank, the conveyance body 41 or the conveyance body 42
Since the time required for one reciprocating movement is short, no large time loss occurs.

[0015]

According to the present invention, since the two carriers are formed in the form of combs which are substantially coplanar and do not interfere with each other, they do not interfere with each other in the same reciprocating motion path, and these are one rack and pinion. Because the mechanism is configured to reciprocate, synchronous movement is assured, and the chuck is set to a transport height and a higher height by a two-stage cylinder below these transport bodies,
The retreating chuck does not interfere with the plate material being conveyed, so that it can retreat on substantially the same conveyance path, and can be assembled as a simple configuration in a small space compared to the conventional one. Especially when taking two sheets,
Using the reciprocating motion of the feeder, the two-sheet
Without any significant time loss
In this state, it is possible to discharge the two-sheet plate material.

[Brief description of the drawings]

FIG. 1 is a side view of the plate conveying apparatus of the present invention.

FIG. 2 is a plan view of the plate material conveying device.

FIG. 3 is a front view of the plate material conveying device.

FIG. 4 shows a fitting portion between a guide and a slider, and 2
It is an enlarged front view of the combination part of a step cylinder and a chuck.

FIG. 5 is an explanatory view of the operation of the plate material conveying device.

FIG. 6 is a diagram illustrating the operation of the plate material conveying device.

FIG. 7 is an explanatory view of the operation of the plate material conveying device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 plate material transport device 2 machine frame 31, 32 guide body 41, 42 transport body 51, 52, 61, 62 cylinder 71, 72, 81, 82, 91, 92 chuck 10 pinion 11, 12 rack 16 reciprocating drive source 17 controller 18 Detector

Claims (1)

(57) [Scope of request for utility model registration] 1. A horizontal guide body (31, 2) is provided on a machine frame (2).
32) is fixed in the feed direction, and two comb-shaped transport bodies (41, 42) are attached to each guide body (31, 32) so as to be reciprocally movable in the feed direction so as not to interfere with each other. A plurality of downward two-stage cylinders (51, 52, 61, 62) are attached below the transfer bodies (41, 42) according to the plurality of stations according to the area of the plate material (15). 51, 52, 6
Chucks (71, 72, 81, 8)
2, 91, 92) and two carriers (41, 4).
2) A pair of racks (1
1, 12) are fixed, and a pinion (10) is arranged in a meshing state between a pair of racks (11, 12), and a reciprocating drive source (16) is connected to the pinion (10) .
While controlling the reciprocating drive source (16) , the two-stage cylinder (51, 52,
61, 62) to operate the chucks (71, 72, 8).
1, 82, 91, 92) as the feed height, and the carrier (4
1, 42), the chucks (71, 72) are set at a height higher than the feeding height when the sheet material (15) is to be retracted, and the detection for detection provided in the loading station is performed at the time of taking two sheets of the plate material (15).
One of the carriers (4 ) based on the signal from the output device (18)
And characterized by including a control device for transferring the discharge station the sheet material (15) by retraction of 1,42) (17)
Work sheet conveying apparatus (1).