JPS6027539Y2 - Processed parts feeding device to drawing press - Google Patents

Description

[Detailed description of the invention] This invention is a machine for supplying machined parts to a continuously operating drawing press, and is designed to provide simple explanations for the second processing of workpieces that require deep drawing, such as pots for jar rice cookers. The present invention relates to an automatic loading/unloading device for processed parts to a drawing press that has a reliable configuration and operates reliably.

The shallow silk-like processed parts (workpieces) that have been subjected to the primary processing are fed on a conveyor to the bolster of the drawing press for secondary processing, and conventionally this is picked up manually and while the bolster is descending. It was then inserted into the crease presser and held until the die on the bolster rose.

Therefore, one person was required to use a work tool to insert the processed parts into the press.

This invention was devised to automate the above manual work.
A work elevator and a carry-in cylinder are attached to the lifting bolster, and a clamp finger and a button are attached to the piston rod of the carry-in cylinder. When the holster descends, the workpiece is immediately carried onto the die, and at the same time the next workpiece is transferred to the workpiece. This is a feeding device for processed parts that is pushed into an elevator.

The contents will be explained in detail below according to the drawings.

FIG. 1 is a front view of the processed parts supply device according to the present invention.
FIG. 2 is a plan view thereof.

1 in the figure is a work elevator with a lifting cylinder 2 in the center of the bottom surface.
A piston rod 2' is installed.

The upper surface of the work elevator 1 is provided so as to be on the same plane as the upper surface of the carry-in conveyor 3 when the bolster 1a is in the lowered state and the lifting cylinder 2 is not operating, that is, when the piston rod 2' is retracted.

Further, when the cylinder 2 is actuated and raised (see the dashed line in FIG. 1), the carrying cylinder 7, which will be described later, is in a pulled position and the clamp finger 10 is in a clamping position.

A work elevator 1 is mounted on a U-shaped frame 5 fixed to a bolster 1a of a rowing press by means of a support arm 4 to which a lifting cylinder 2 is attached.

A mounting plate 6 is provided on the cross beam 5' of the U-shaped frame 5 so as to be vertically adjustable, and a carrying cylinder 7 is attached to this.

A horizontal rod 8 is attached to the piston rod 7' of the carry-in cylinder 7, and a clamp finger 10 supported by a frame 9 having a U-shaped cross section is installed on the upper end surface of the horizontal rod 8 at the center position.

11 is a clamp cylinder for operating the clamp finger.

One end of a sliding rod 13 supported by a bearing 12 mounted on the mounting plate 6 is fixed to both ends of the horizontal rod 8.

The other end of the sliding rod 13 is connected to the horizontal rod 15 via the connector 14.
are concatenated.

The base of an arm 16' of a bushing 16 is attached to the horizontal rod 15 via a connector 14.

Therefore, both the clamp finger 10 and the bushing 16 move horizontally with the movement of the carrying cylinder 7, and move up and down together with the bolster 1a.

The pusher 16 is located on the side surface of the pressed member on the carry-in conveyor 3 when the carry-in cylinder 7 is in the pulling position and the bolster 1a is in the lowering position, and when the work elevator 1 is descending, the pusher 16 is placed on the side surface of the pressed member on the carry-in conveyor 3. 1).

Detection of this position takes place by means of photoelectric switches 18,19.

Further, when the bolster 1a is raised to the uppermost position, the workpiece of the supply conveyor 21 can pass under the bushing 16.

The clamp finger 10 clamps the workpiece when the work elevator 1 rises, and by the operation of the cylinder 7, the workpiece is carried to the center position of the upper surface of the die 1b on the bolster 1a of the draw ink press, and as the die 1b and the bolster 1a rise, the workpiece is Hold it until the wrinkle presser 1c is inserted into it.

Reference numeral 17 denotes a conveyor for carrying out a member, 18 a photoelectric switch for confirming work standby position A, 19 a photoelectric switch for confirming work standby position B, and 20 a photoelectric switch for confirming carryout, all of which are connected to a control operation circuit (not shown).

21 is a carry-in belt conveyor, and 22 is an electric motor.

This invention consists of the above. Next, the operation will be explained.

Figure 3 shows the bolster la, carrying cylinder 7, clamp cylinder 11, lifting cylinder 2, and supply conveyor 2 in operation.
1 is a time chart showing the operation of No. 1.

FIG. 4 1xg is a diagram showing the state at each time point a to g of FIG. 3, respectively.

The processed parts on the carry-in conveyor 3 are confirmed by the photoelectric switch 19, and the lowered position of the work elevator 1 and the bolster 1 are confirmed.
When the lowering position of a is confirmed by a control device (not shown), the carrying cylinder 7 begins to extend.

This point is at point a in FIG. 3, and is in the state shown in FIG. 4 a.

At this point, the bolster 1a is still descending, but the carrying cylinder 7 begins to extend, saving wasted time.

The workpiece that had been squeezed into the die 1b by the punch 1d in the wrinkle presser 1c is pushed up by the knockout 1e, and the die 1b is exposed as far as it has gone down.

Figure 4 shows the state at point b in Figure 3, where the bolster 1a has reached its lowest point (bottom dead center), the carrying cylinder 7 is in the middle of its extension stroke, and the pressed workpiece is on the die 1b. It's showing its full face.

FIG. 4C is a state diagram at time C in FIG.
At the same time, the workpiece is pushed onto the work elevator 1 using a pusher 16.

At this point, the bolster 1a starts to rise.

FIG. 4d is a state diagram at the time of FIG. 3d.

When the bolster 1a rises, the wrinkle presser 1c remains stationary, and the wrinkle presser is gradually inserted into the workpiece on the die.

When the bolster 1a reaches the highest position (top dead center), the wrinkle presser 1c comes into contact with the die 1b via the processed part.

When the workpiece is sufficiently inserted into the wrinkle presser, the clamp finger 10 releases the workpiece and the carrying cylinder 7 begins to pull.

FIG. 4e is a state diagram at time e in FIG. 3.

The carrying cylinder 7 is in the middle of being pulled, and the lifting cylinder 2 is about to start rising.

The supply conveyor 21 is about to start driving in order to send the processed parts at the standby position A of the supply conveyor to the standby position B of the carry-in conveyor 3.

Fig. 4 f is a state diagram at time f in Fig. 3, where the punch 1d in the wrinkle presser 1C is descending and squeezing the workpiece into the die 1b while the bolster 1a remains at the top dead center. , the piston rod 2' of the lowest cylinder 2 is rising.

The loading cylinder 7 has just finished being pulled.

Figure 4g is a state diagram at point g in Figure 3, where the lifting cylinder 2
The piston rod 2' of the elevating cylinder 2 has finished rising, the clamp cylinder 11 is actuated to complete the clamping, and the piston rod 2' of the elevating cylinder 2 is about to start descending.

Further, the punch 1d in the wrinkle presser 1C pushes the workpiece into the die 1b to complete the work.

The supply conveyor 21 is no longer driven, and the processed parts are transferred to the busher 1.
6 and is sent to the work machine position B on the carry-in conveyor 3.

Next, the bolster 1a starts to descend, resulting in the state shown in FIG. 4g.

Thereafter, similar operations are repeated to automatically carry in and carry out processed parts.

By attaching the work elevator 1, pusher 16, and clamp finger 10 to the bolster 1a as described above, the present invention allows parts to be automatically and continuously carried in and out of a continuously operating drawing press extremely smoothly and reliably. This not only saves labor, but also makes it extremely efficient as there is no wasted waiting time for each operation, and the stability of machining is maintained, making it easy to maintain and improve quality. It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a front view of a machine for supplying processed parts to a drawing press according to the present invention, and FIG. 2 is a plan view of FIG. 1. Figure 3 is a time chart showing the operating states of the bolster, carry-in cylinder, clamp cylinder, lifting cylinder, and supply conveyor. FIG. 1... Work elevator, 2... Lifting cylinder, 3... Loading conveyor, 7...
・Carrying cylinder, 10... Clamp finger, 11... Clamp cylinder, 16...
・Butsusha, 21... Supply conveyor.

Claims (1)

[Claim for Utility Model Registration] In a conveyor-type processed parts supply device to a drawing press, a work elevator 1 is provided with a lifting cylinder 2 attached to a bolster 1a, and the lifting position of the work elevator is at the height of the upper surface of a die 1b. A carry-in conveyor 3 located immediately before the descending position of the work elevator 1 with the bolster 1a in a lowered state, a supply conveyor 21 that supplies processed parts to the carry-in conveyor 3, and a carry-in cylinder attached to the bolster 1a. 7. The carry-in cylinder tuff is a carry-in cylinder 7 located horizontally in front of the ascending position of the work elevator 1 toward the center of the die 1b.
and a clamp finger 10 attached to the piston door ′ of the carry-in cylinder;
A clamp finger 10 inserts a processed part into the center of the upper surface of the die 1b in the extended position, and a button 16 is attached to the piston ron door. The drawing is characterized in that it is equipped with a pusher 16 that is located behind the workpiece on the carry-in conveyor 3 and pushes the workpiece onto the work elevator 1 in the descending position at the extended position of the piston door ′ when descending. Equipment for feeding machined parts to the press.