JPH0713876Y2 - Molded product takeout device in press - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a device for taking out a molded product in a bend type press.

(Prior Art) The work formed by pressing is sometimes strongly adhered to by the rust preventive oil and pressing oil that are interposed between the work and the punch,
In some cases, it cannot be taken out by the suction force of the vacuum coupler.

In order to solve such a problem, for example, the actual exploitation Sho 63-116
As can be seen in Japanese Patent No. 199, the lift pin provided on the die is used to separate the work from the punch, and the work positioned on the punch is positioned by the vibration or impact when the work is pushed up. There is a problem that it is easy to cause inconveniences such as displacement and dropping.

(Problems to be Solved by the Invention) The present invention has been made in view of such inconveniences, and an object thereof is to improve a work which can be separated from a punch without causing a positional deviation or the like. To provide the device.

(Means for Solving the Problem) That is, the present invention is, as a work take-out device for achieving the above-mentioned problem, below the wrinkle retainer at the descending end, below the wrinkle retainer which is arranged so as to surround the punch. A columnar member made of an elastic material is provided so as to come into contact with the lower surface and push up the wrinkle retainer so that the upper surface does not exceed the tip of the punch.

(Operation) With this configuration, the wrinkle retainer that has descended together with the upper die to finish bend forming on the steel sheet is pushed up by the restoring force of the elastic columnar member, and the steel sheet after forming is positioned and separated from the punch. I will let you do not hinder carrying out.

(Example) Then, the Example illustrated below is described.

In the bend press shown in the figure, a punch substrate 3 in which punches 2 and 2 are erected is attached on a bolster 1, and a wrinkle retainer 4 is provided on the bolster 1 so as to surround the punch 2. It is mounted so as to move up and down by being driven by an elevating rod 6 while being guided by several guide pins 5 that penetrate the punch substrate 3.

By the way, reference numerals 7 ... In the drawing are elastic columnar members formed of urethane resin or the like.
Is 3 cm to 5 cm from the lower surface 4b of the wrinkle retainer 4 at the descending end.
It is mounted on the bolster 1 so as to project upward to some extent, absorbs the shock generated when the bend press upper die 10 descends to the lowermost end, and as shown in FIG. By pushing up a certain wrinkle presser 4 and raising its upper surface 4a to a height that does not exceed the tip 2a of the punch 2, it is configured to be separated from the steel plate W punch 2 while being positioned by the punch 2. There is.

In the figure, reference numeral 11 is a rod for raising and lowering the upper die, 9 is a stopper plate for positioning a steel plate protruding from the upper surface 4a of the wrinkle retainer 4, 12 is a steel plate feeding device equipped with a suction coupler 13 ,. The drawing-out devices for the formed steel sheet W each including the suction coupler 15 are shown.

In the bend press thus configured, the wrinkle retainer 4 is pushed up by the elevating rod 6 as shown in FIG. 1, and the upper surface 4a thereof is positioned above the tip 2a of the punch 2 and stands by. In this state, the steel plate feeding device 12 carries in the steel plate W adsorbed by the adsorbing coupler 13 into the bend press 10 and places the tip end thereof against the stopper plate 9 while positioning the steel plate W on the wrinkle retainer 4. The upper die 10 descends to sandwich the steel plate W between the lower surface 10a and the upper surface 4a of the wrinkle retainer 4, and further descends while pressing the wrinkle retainer plate 4 to bend the steel plate W by the punch 2. .

On the other hand, the elastic columnar member 7 on the bolster 1 comes into contact with the lower surface 4b of the wrinkle retainer 4 at this stage, and is strongly compressed when the wrinkle retainer 4 reaches the descending end together with the upper die 10 and the impact due to the repulsive force at this time. Absorb. Then, when the upper die 10 is lifted after bend forming, the elastic columnar member 7 that has been released from the pressure gently pushes up the wrinkle retainer 4 to the extent that the upper surface 4a does not exceed the tip 2a of the punch 2 due to the restoring force at that time. , Formed steel plate W
And the punch 2 are separated from each other (FIG. 2).

Therefore, when the take-out device 14 next enters the bend press and the steel plate W is pulled up by the suction coupler 15, the steel plate W is easily removed from the punch 2 and discharged out of the press.

(Effect) As described above, according to the present invention, since the elastic columnar member that pushes up the wrinkle retainer at the descending end so as not to exceed the tip of the punch is disposed immediately below the wrinkle retainer, it descends together with the upper die. The wrinkle retainer that has finished bend forming to the steel plate is pushed up by its own restoring force to reliably separate the formed steel sheet from the punch against the viscosity of rust preventive oil, and at the same time, raise the height. By making the height lower than the punch, the spaced steel plates can be accurately positioned and held by the punch as they are.

Moreover, at the descending end of the upper die, the columnar member is compressed to the maximum by the wrinkle retainer descending with it,
The large repulsive force effectively absorbs the impact generated at the descending end, and the deformation and damage of the lifting rod and the like can be prevented in advance.

[Brief description of drawings]

FIG. 1 and FIG. 2 are sectional views of an apparatus according to an embodiment of the present invention shown in a state before and after bend forming. 1 ... Bolster, 2 ... Punch 3 ... Wrinkle retainer, 7 ... Elastic columnar member 10 ... Upper mold, W ... Steel plate

Claims (1)

[Scope of utility model registration request] 1. An extent to which a lower surface of a wrinkle retainer disposed so as to surround a punch is in contact with a lower surface of the wrinkle retainer at a lower end so that an upper surface of the wrinkle retainer does not exceed a tip of the punch. A molded product take-out device for a press, characterized in that a columnar member made of an elastic material for pushing up the wrinkle retainer is arranged.