JPS606017Y2 - pallet feeding device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for sequentially feeding pallets loaded with blanks to a vacuum feeder in transfer processing.

Conventionally, in this type of apparatus, two pallets were moved back and forth and blanks were alternately loaded.

Therefore, it is necessary to load blanks each time the pallet is changed, and the operator has to load the blanks frequently and at set times, which is inconvenient.

The present invention has been made to solve these drawbacks.

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, blanks loaded on a pallet 4 and guided by a guide 6 are lifted by a lift cylinder 21,
One by one, the vacuum cup 8 sucks it up from the top.
It is dropped onto a feed bar (not shown) and fed into a press machine.

A plurality of rollers 2 are assembled to the frame 5, and the entire frame 5 is inclined at a slope of about 17100 degrees.

As shown in FIG. 2, the pallet 4 is provided with a notch 11 for a stopper 15 and a bushing cylinder pawl 25, and at the same time a hole 10 for a lift cylinder, and a guide 6 is assembled therein.

A bushing cylinder 27 is fixed to a frame 28, a pawl 25 is connected to the tip of the piston rod with a pin, and a detent 26 is provided at the tip of the piston rod to prevent the pawl 25 from rotating to the right in FIG.

A bracket 19 is fixed to a frame 28 (rotatable on the left side), a stopper 15 with a damper 12 is connected to one end of the bracket with a pin 17, and a cylinder 18 is connected to the other end with a pin 20.

The piston rod of the cylinder 18 is connected to the stopper 15 with the damper 12 by a pin 16.

The lift cylinder 21 is fixed to the frame 28 and provided with limit switches 22,29.

The operating order of this device will be explained below.

However, it is assumed that the pallet 4 moves from right to left in FIGS. 1 and 2.

The blanks are sucked up one by one by the vacuum cup, the lift cylinder gradually rises, and when the limit switch 22 detects the upper limit of the lift cylinder, the lift cylinder 2
1 goes down.

When the limit switch 29 detects the lowering limit of the lift cylinder 21, the bushing cylinder 27 retreats, and the cylinder 18 is actuated by the signal from the limit switch 30, and the stopper 15 rotates and descends using the pin 17 as a fulcrum, and the limit switch 14 becomes 'ONJ', the bushing cylinder 27 moves forward in response to that signal, and since the pawl 25 is in the notch 11, the pallet 4 is pushed and moves forward.

When the claw 25 moves forward by a certain amount, the limit switch 24 is activated, and this signal causes the stopper 15 to rise.

When the claw 25 moves further forward and the limit switch 23 is actuated, the pallet has come to the normal position.

The lift cylinder 21 is raised, and the blanks are sucked one by one by the vacuum cup 8.

During this pallet changeover, a certain amount of blanks are stocked by the holder 9, so there is no need to stop the vacuum operation.

Thereafter, the pallets are sequentially changed in the same manner.

The pallets from the beginning are pushed and sent out in sequence by the pallets that come after.

As shown in FIG. 2, in this embodiment, three sets of blanks are loaded on one pallet, but the above-mentioned pallet switching can be performed even if there are not three sets of blanks.

Since the present invention has the above-described configuration, (1) several sets of blanks can be loaded on - pallets, reducing the number of loading operations.

(2) Furthermore, since more blanks can be loaded by extending the conveyor, loading work can be carried out more intensively.

There are effects such as

[Brief explanation of drawings]

FIG. 1 is a front view, and FIG. 2 is a partially sectional front view. 1 is a block, 2 is a roller, 3 is a fence, 4 is a pallet, 5 is a frame, 6 is a guide, 7 is a floater, 8 is a vacuum cup, 9 is a holder, 10 is a hole for a lift cylinder, 11
is a notch, 12 is a damper, 13 is a limit switch, 14
is a limit switch, 15 is a stopper, 16 is a pin, 1
7 is a pin, 18 is a cylinder, 19 is a bracket, 20 is a pin, 21 is a lift cylinder, 22, 23.24 is a limit switch, 25 is a pawl, 26 is a stopper, 27 is a bushing cylinder, 28 is a frame, 29 .30 is a limit switch.

Claims (1)

[Scope of utility model registration request] A conveyor with rollers arranged in rows on a frame extending on both sides of a fixed position for supplying blanks, the inlet side being slightly higher than the outlet side, and tilted to the extent that the pallet runs under its own weight, and the conveyor loaded with blanks. a plurality of pallets that move from the entrance side to the exit side on the conveyor; a stopper that appears in the path of the pallets and engages with a notch in the pallets to stop the pallets at the predetermined position; and a stopper located below the entrance side of the conveyor. a bushing cylinder provided toward the moving direction of the pallet, having a claw on its piston rod that retracts from the passage of the pallet and engages with a notch of the pallet, and moves the pallet to the predetermined position; , a detector for detecting the lowering of the stopper and outputting a signal for advancing the bushing cylinder; and a detector for detecting a constant forward position of the pawl and outputting a rising signal for the stopper; A pallet supply device characterized in that pallets are sequentially moved to fixed positions by interlocking with a stopper.