JPS6310188Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a loader device for loading and unloading workpieces into a press.

2. Description of the Related Art Conventionally, a loader device for loading and unloading workpieces into and out of presses and transporting workpieces between presses is configured to operate upon power being transmitted from the press via a mechanical interlocking mechanism. For this reason, the structure is complicated and expensive, and there are also problems such as the inability to easily adjust the feed distance, lift amount, etc.

This invention was made with the aim of improving this problem, and by using a DC servo motor as the drive source and controlling the forward and reverse rotation of this DC servo motor, it was possible to easily adjust the feed distance and lift amount. The present invention aims to provide a loader device with a relatively simple configuration.

This invention will be described in detail below with reference to an embodiment shown in the drawings. In the drawings, reference numeral 1 denotes a main body case installed near or between presses (not shown), and a lift frame 2 is horizontally provided inside. Guide posts 3 are erected upward from both ends of the lift frame 2, and these guide posts 3
The vertical movement is guided by a roller 24 supported on the main body case 1 side, and a total of 8 rollers are provided between each guide post 3, spaced vertically on each guide post 3 side and in the center. A pulley 4 is rotatably supported, and two timing belts 5 are wound between each guide post 3 side and the central pulley 4. These timing belts 5 are rotatable in opposite directions by gears 6 that interlock between the pulleys 4 on the lower side of the center, and the upper pulley 4 provided on one guide post 3 side , is linked via a timing belt 8 to a lift motor 7 which is a DC servo motor installed on the main body case 1. Further, a portion of each timing belt 8 is fixed to the guide post 3 by a holder 10, and by rotating each timing belt 8 from the lift motor 7, the lift frame 2 is moved up and down in a horizontal state via the guide post 3. At the same time, a guide rail 2a is installed at the lower part of the lift frame 2, and a traveling body 12 is suspended from the guide rail 2a via rollers 11. A guide rod 13 is provided on the lower surface of both ends of the traveling body 12 to project downward, and the tip side of the guide rod 13 penetrates inside the carrier 14 and projects downward from the carrier 14. A support member 15 is fixed. A pair of arms 17 having a workpiece holding means 16 such as a vacuum cup at the tip thereof project from the support member 15, and these arms 17 are used to load and unload the workpiece.

The carrier 14 is movably supported via rollers 19 on a guide rail 18 installed in the lower part of the main body case 1 so as to be parallel to the lift frame 2, and is supported by a timing belt 20 stretched in the feed direction. Part of the bottom edge is attached. The timing belt 20 above is the main body case 1
Pulley 2 installed spaced apart in the feed direction
It is wrapped in 1 hour. Also, one pulley 21 is connected to a timing belt 2 to a feed motor 22 consisting of a DC servo motor installed on the main body case 1.
By rotating the timing belt 20 by the feed motor 22, the carrier 14 can be moved in the feed direction along the guide rail 18.

Since this invention has been described in detail above, when lifting the workpiece held by the workpiece holding means 16, the lift motor 7 is used to lift each timing belt 5.
Rotate. As a result, the guide post 3 fixed to a part of each timing belt 5 moves up and down to move up and down the lift frame 2. The support member 15 moves up and down, and the workpiece held by the workpiece holding means 16 can be lifted to a predetermined height. Further, in the case of feeding after lifting, the timing belt 20 is rotated by the feed motor 22. As a result, the carrier 14 fixed to a part of the timing belt 20 moves along the guide rail 18, and the guide rod 13
The support member 15 can be fed a predetermined distance via the .

By repeating the above operations, the workpiece held in the workpiece holding means 16 can be carried into and out of the press,
In addition to being able to freely transport between presses, the lift and feed stroke can be set arbitrarily by controlling the forward and reverse rotation of each motor 7 and 22. The amount of movement can be easily adjusted accordingly. Furthermore, since the conventional mechanical interlocking mechanism is not required, the structure is simple and can be provided at low cost.

[Brief explanation of the drawing]

The drawing is a perspective view showing an embodiment of this invention. 2 is a lift frame, 3 is a guide post, 5 is a timing belt, 7 is a lift motor, 12 is a traveling body, 13 is a guide rod, 14 is a carrier, 15 is a support body, 16 is a work holding body, 17 is an arm, 2
0 is the timing belt, 22 is the feed motor.

Claims (1)

[Scope of utility model registration request] A lift frame 2 supported vertically via guide posts 3, a pair of timing belts 5 stretched between the guide posts 3 and partially fixed to each guide post 3, and the timing belt A lift motor 7 consisting of a DC servo motor moves the lift frame 2 up and down via each guide post 3 by rotating the lift frame 2 in opposite directions. An arm 1 that is suspended via a rod 13 and has a workpiece holding means 16 at its tip.
A support body 15 from which a number 7 is projected, a carrier 14 which is movably supported along the lift frame 2 and through which the guide rod 13 is penetrated, and a carrier 14 which is stretched in the feed direction and which is partially attached to the carrier 14. A loader device comprising a timing belt 20 to which a timing belt 14 is fixed, and a feed motor 22 consisting of a DC servo motor that rotates the timing belt 20.