JP2531401B2 - Automatic loading device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic loading device capable of loading a plurality of works such as automobile panels and press products into a stack container without contacting them.

[Prior art] Conventionally, a work formed by a transfer press is
For example, it is transferred to a transfer device such as a belt conveyor installed on the downstream side of the transfer press, and is transferred to a predetermined position by the transfer device. After that, an operator unloaded the transfer device and loaded it into a container.

However, as described above, the work is manually performed by the worker to remove the work from the transfer device and load it into the container even if the transfer press has a low production capacity and the work to be formed is small in size and light in weight. Since it is a work in the vicinity of the moving part, the work is highly dangerous, and it requires more than one worker to save manpower. Furthermore, as in recent years, the transfer press has become more efficient and faster. .
The work formed once every 5 to 4 sec. Is sent from the transfer press, and the size is large, and the width is 1500 mm x length 2000 to 2500 mm, and the weight is about 20 to 30 kg. With manual work, it is difficult to perform processing such as unloading a work from a transfer device and loading it into a container, and the risk of work becomes even greater.

Therefore, in recent years, various types of devices have been proposed in which works pressed by a transfer press are automatically conveyed by a conveyor without a worker's hand and loaded into a container by a loader.

[Problems to be Solved by the Invention] However, in the work of lifting and transporting the works conveyed by the conveyor one by one by a loader and loading them in the container, the work efficiency is low and it is difficult to cope with the speeding up of the work. There is a problem that the number of loaders must be increased in order to cope with the speedup.

The present invention has been made in view of the above circumstances and has an object to enable efficient and high-speed loading of works with a small loader.

[Means for Solving Problems] According to the present invention, a lifter for raising a work formed by a press in a horizontal state and a plurality of works raised by the lifter are supported in a horizontal state so as not to come into contact with each other. A support member that can move back and forth and a plurality of works lifted by the support member are held in a non-contact state to be clamped by a clamp device, and the clamp device is rotated approximately 90 degrees with respect to a vertical plane to make a plurality of The work is oriented vertically, and a loader for simultaneously loading a plurality of works in the container at the same time is provided.

[Operation] A plurality of works lifted by the lifter are supported by the support member so that they do not come into contact with each other, and are clamped by the clamp device of the loader and loaded into the container while maintaining the non-contact state, so efficient loading is possible. It can be carried out.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 4 show an embodiment of the present invention, in which a belt conveyor 1 for conveying a work 6 molded by a transfer press is arranged on the downstream side of a conventionally known transfer press. A lifter 2 is arranged on the downstream side of 1. The lifter 2 includes a vertically oriented fluid pressure cylinder 3 and a lift frame 5 connected to a piston rod 4 of the fluid pressure cylinder 3, and a support member 7 for supporting a work 6 on the lift frame 5.
Is installed.

On both sides of the lifter 2, a pair of left and right fluid pressure cylinders 8 and 11 facing the workpiece width direction are installed in a plurality of upper and lower stages (two stages in the embodiment), and the piston rods of the fluid pressure cylinders 8 and 11 are arranged.
Support members 10 and 13 for supporting both side portions of the work 6 lifted by the lifter 2 are connected to the tip portions of the 9 and 12.

A frame 14 is erected on one downstream side of the belt conveyor 1, and a loader 15 for loading work is mounted on the frame 14.
Are arranged. That is, a vertical shaft 17 is rotatably supported by a bearing 16 attached to the frame 14,
A horizontally extending arm 18 and a gear 19 are fixed to the gear 19, and a pinion 21 fixed to an output shaft of a drive device 20 installed on the frame 14 meshes with the gear 19.

At the tip of the arm 18, a fluid pressure cylinder 23 is
Is rotatably supported in a vertical plane, and the piston rod 25 of the fluid pressure cylinder 24 is connected to the middle of the arm 18.
The tip is connected to the fluid pressure cylinder 23.

A frame 27 extending in the advancing direction of the work 6 is connected to the lower end of the piston rod 26 of the fluid pressure cylinder 23, and two clamps 28 are arranged at each of the front and rear ends of the frame 27, two at the left and two at the right. ing.

The details of the clamp device 28 will be described with reference to FIGS. 2 to 4. The guided frame 30 is slidably fitted to the guide rod 29 mounted along the frame 27 in parallel with the work advancing direction. 27 hydraulic cylinders
The piston rod 32 of 31 is connected to the guided frame 30 via a bracket 33. A pair of left and right clamp frames 36 having clamp bodies 34 and 35 at the upper and lower ends of the tip end portion are fixed to the guided frame 30, and the work is provided above and below the clamp frames 36 in cooperation with the clamp bodies 34 and 35. Clamp body 37,38 for clamping the end of 6
Are pivotally attached via shafts 39, 40.

A fluid pressure cylinder 41 is mounted on the rear surface of the guided frame 30 in parallel with the fluid pressure cylinder 31.
A clamp body opening / closing frame 43 that can move along the clamp frame 36 is connected to the tip of the piston rod 42 of the.

The upper and lower portions of the clamp frame 36 on the base end side and the upper and lower ends of the clamp body opening / closing frame 43 have shafts 44, 45, 46, 47, respectively.
Links 48,49, 50,51 are pivotally connected via links 48,5
0, 49, 51 The tips are connected to links 54, 55 via pins 52, 53, and the links 54, 55 are clamp frames via shafts 56, 57.
It is connected with 36.

The height interval H ₁ between the clamp bodies 34 and 35 is formed to have substantially the same size as the height interval H ₂ between the support members 10 and 13.

 Next, the operation of the present invention will be described.

The work 6 press-formed by the transfer press is intermittently placed on the belt conveyor 1 and is sequentially conveyed to the downstream side by the belt conveyor 1 and reaches above the lifter 2. Then, the fluid pressure cylinder 3 operates and the lift frame 5 rises to the upper limit position, whereby the work 6 together with the lift arm 5 moves.
Is raised to the height of the support member 10, the fluid pressure cylinder 8 operates, the support member 10 approaches the work 6, and the end of the work 6 is supported by the support member 10.

When the first work 6 is supported by the upper support member 10, the lift frame 5 is lowered to its original position by the fluid pressure cylinder 3, and when the next work 6 reaches above the lifter 2, the lift frame 5 is again lifted by the fluid pressure cylinder 3. 5
Is lifted, the work 6 is lifted from the belt conveyor 1 to the height of the support member 13 by the lift frame 5, the fluid pressure cylinder 11 is operated, the support member 13 approaches the work 6, and the end of the work 6 is supported. It is supported by the member 13.

When the plurality of works 6 are supported by the support members 10 and 13, the drive device 20 is driven to rotate the shaft 17 via the pinion 21 and the gear 19, so that the arm 18 pivots and the frame 18 rotates.
27 stops above the work 6 supported by the support members 10 and 13, and then the fluid pressure cylinder 23 causes the clamp device 28 to descend to the front and rear parts of the work 6 via the frame 27.

When the clamp device 28 descends to the front and rear of the work 6,
The guided frame 30 is slid against the guide rod 29 by the fluid pressure cylinder 31, and the clamp frame 36 is attached to the work 6.
Close to. As a result, the clamp main body 34 is positioned on the lower surface of the end portion of the upper work 6, and the clamp main body 35 is positioned on the upper surface of the end portion of the lower work 6.

Next, when the clamp main body opening / closing frame 43 is advanced to the work 6 side by the fluid pressure cylinder 41, the clamp main bodies 37, 38 that have been opened as shown by the two-dot chain lines in FIGS. 2 and 3 are linked to the links 50, 48, 54, 51, 49, 55 are closed as shown by the solid line, and the upper work 6 is held by the clamp bodies 34, 37.
However, the lower works 6 are clamped by the clamp bodies 35 and 38, respectively.

When the two work pieces 6 are clamped by the clamp bodies 34, 37, 35, 38, the support members 10, 13 are subsequently retracted by the fluid pressure cylinders 8, 11 and the work pieces 6 are raised by the fluid pressure cylinder 23 to drive them. The device 20 rotates the arm 18 to move the workpiece 6 clamped by the clamp device 28 to the outside of the transfer line, and the fluid pressure cylinder 24 rotates the fluid pressure cylinder 23 by 90 degrees in a vertical plane to move the frame 27. The work 6 is turned from the horizontal state to the vertical state via the fluid pressure cylinder 41 to retract the clamp body opening / closing frame 43 to open the clamp bodies 37 and 38. As a result, the works 6 are vertically stacked on the container that is waiting in advance.

When the works 6 are vertically stacked in the container, the frame 27 is returned to the horizontal state, the arm 18 is rotated, and the clamp device 28 is returned into the line and is supported by the support members 10 and 13 as described above. Next work 6 clamp,
The orientation is changed from horizontal to vertical and containers are loaded.

In the embodiment of the present invention, the case where only the frame 27 and the clamp device 28 of the loader 15 are moved up and down has been described, but the frame 27 and the clamp device 28 may be moved up and down by moving the arm 18 up and down. The clamp device 28 may be provided in the articulated robot, the loader 15 may load a plurality of workpieces 6 at a time, and the clamp device 28 may be a link if the workpieces 6 can be clamped. It is needless to say that the above may not be used, and that various changes may be made without departing from the scope of the present invention.

[Effect of the Invention] According to the automatic loading apparatus of the present invention, it is possible to put a plurality of works together at the same time from a horizontal state to a vertical direction and to put a plurality of works together in a container, thus improving work efficiency. At the same time, it is possible to easily cope with the speeding up of the work, and it is possible to obtain various excellent effects such that the number of loaders may be small.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the automatic loading device of the present invention,
FIG. 2 is an enlarged view of the arm tip side of the automatic loading device, FIG.
The figure is a detailed view of the clamp device used for the automatic loading device,
FIG. 4 is a plan view of FIG. In the figure, 1 is a belt conveyor, 2 is a lifter, 10 and 13 are support members, 15 is a loader, 28 is a clamp device, 34, 35, 37, 3
8 shows the clamp body.

Claims (1)

(57) [Claims] 1. A lifter for raising a work formed by a press in a horizontal state, and a support member capable of advancing and retracting for supporting a plurality of works raised by the lifter in a horizontal state so as not to contact each other. The plurality of workpieces lifted by the support member are held in a state where they do not come into contact with each other, are clamped by the clamp device, and the clamp device is rotated approximately 90 degrees with respect to the vertical plane, so that the plurality of workpieces are oriented vertically. The automatic loading device is equipped with a loader for loading the above workpieces into the container at the same time in the vertical orientation.