JPH01218800A - Press device - Google Patents

Abstract

PURPOSE:To improve press production efficiency by providing a mandrel which moves vertically according to a press action and disposing slidable molding punches alongside the mandrel. CONSTITUTION:A press feeder 11 which feeds work pieces 12 is disposed and the mandrel 13 is provided along the feed direction thereof. The mandrel 13 is vertically moved by the press action of push-down pins 16. Further, the molding punches 21, 22 are disposed to both sides of the mandrel 13 and are moved in the direction of the mandrel 13 by the press action of the cam 23 so that the punches 21, 22 together with the mandrel 13 mold the work pieces 12 to a prescribed shape. A guide 14 and the mandrel 13 are pushed down as the press descends; thereafter, the punches 21, 22 move to the bottom dead pint where the work pieces are molded by the mandrel 13. The molding with pregressive feeding by using the mandrel 13 is thereby executed. The production efficiency of the press is, therefore, improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a press apparatus, and more particularly to a press apparatus that molds a molded object while sequentially feeding it with a press feeding device.

(Prior Art) Conventionally, when a press machine is used to bend and form a product 1 as shown in FIG. 3, as shown in FIG. Formed protrusion 1
Since there is a part where bending is performed so that a % 1 b are overlapped with an interval, conventionally, forming is performed as follows.

That is, as shown in FIG. 5(a), for example, the molding is performed in a sequential feeding process up to an intermediate process. And after this, Figure 5 (
b) Mandrel 2 and forming punch 3.4 as shown in
The protrusions 1a and lb are formed in a single process using a molding machine, or the protrusions 1a and lb are formed using a special press such as a multi-slide press.

(Problems to be Solved by the Invention) As mentioned above, conventionally, when it is necessary to mold a workpiece through a mandrel, it is not possible to remove the molded product from the mandrel and send it. Molding is carried out through a single process. For this reason, there was a problem in that the number of steps was increased and productivity deteriorated.

The present invention has been made in response to such conventional circumstances,
It is an object of the present invention to provide a press device which enables molding using a mandrel by progressive feeding and which can improve productivity compared to the conventional method.

[Structure of the Invention] (Means for Solving the Problems) That is, the present invention is a press device that molds a molded object while being fed sequentially by a press feeding device, the press device forming a molded object while sequentially feeding the object, the press device forming a molded object along the feeding direction of the press feeding device. The mandrel is provided with a mandrel that moves up and down in accordance with the press operation, and a forming punch that is disposed on the side of the mandrel and slides in the direction of the mandrel in response to the press operation to form the object. Further, the workpiece is configured such that the workpiece that has been formed by the forming punch is sequentially fed out by the press feeding device.

(Function) In the press device of the present invention having the above configuration, there are a man and a doll arranged along the feeding direction of the press feed device that move up and down in response to the press operation, and a man and a doll arranged on the side of the mandrel that move up and down in response to the press operation. and a forming punch that slides in the direction of the mandrel to form a molded object, and the workpiece that has been formed by the mandrel and the forming punch is sequentially fed out by a press feeding device.

Therefore, molding using a mandrel can be performed by progressive feeding, and productivity can be improved compared to the conventional method.

(Example) Hereinafter, details of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, a press feeding device 11 is arranged in the press device of this embodiment, and this press feeding device 11 moves the molded object 12 in the feeding direction indicated by the arrow in the figure. is configured to send.

Further, a mandrel 13 is arranged along the feeding direction of the press feeding device 11. This mandrel 13 is connected to a guide 14 and is configured to move up and down by the pressing action of a push-down pin 16 equipped with a coil spring 15.

A guide pin 20 with a coil spring 19 is disposed below the push-down pin 16 and passes through the die holder 17 and the stripper ″18.
The coil spring 1 of 6 is constructed of a coil spring having a higher spring constant than the coil spring 19 of the guide pin 20.

Further, on both sides of the mandrel 13, forming punches 21.
22 are arranged, and these forming punches 21.22
is configured to move in the direction of the mandrel 13 by the pressing operation of the cam 23, and to mold the object 12 into a predetermined shape together with the mandrel 13.

In these figures, numerals 24 and 25 indicate push-down pins and guide lifters arranged before and after the mandrel 13, respectively, and numeral 26 indicates a stripper bolt.

In the press apparatus of this embodiment having the above-mentioned configuration, the workpiece 12 bent into a concave shape in the previous step is sent to the mandrel 13 by the press feeder 11, and the workpiece is formed in the following manner.

First, as the press descends, the coil spring 15
The re-guide 14 and the mandrel 13 are pushed down and descend until they collide with the die holder 17 via the stripper 18.

After this, while the coil spring 15 is deflecting, the cam 23
The forming punches 21 and '22 move, and the mandrel 1
3, the molded article 12 is molded at the bottom dead center of the press.

Thereafter, as the press rises, the molded object 14 also rises while being wound around the mandrel 13.

After the mandrel 13 is lifted by the press, a force is sent to the molded object 12 by the press feed device 11, and the fully formed molded object 12 is removed from the mandrel 13 by the force F and sent to the next process.

That is, in the press device of this embodiment, the mandrel 13 is arranged in the same direction as the direction in which the press feed device 11 feeds the object 12 to be formed, and after forming with the forming punches 21 and 22, the object is wound around the mandrel. The molded object 12 in this state is removed from the mandrel 13 by the force of the press feeding device 11, and molding is performed by sequential feeding. Therefore, molding using the mandrel 13, which was difficult in the past, can be performed by progressive feeding, and productivity can be improved compared to the past.

[Effects of the Invention] As explained above, according to the press apparatus of the present invention, molding using a mandrel can be performed by progressive feeding, and productivity can be improved compared to the conventional method.

[Brief explanation of the drawing]

1 and 2 are diagrams showing the configuration of a press device according to an embodiment of the present invention, FIG. 3 is a perspective view showing an example of a molded product, and FIG. 4 is a view of the molded product in FIG. FIG. 5 is an explanatory diagram showing a conventional product molding process. 11・・・・・・・・・・・・Press feeding device 1
2・・・・・・・・・・・・Molded object 13...
・・・・・・・・・Mandrel 15・・・・・・
・・・・・・・・・Coil sprocket 16・・・・・・
・・・・・・・・・Press down pin 21.22・・・・・・
・Molding punch 23・・・・・・・・・・・・Cam applicant
Toshiba Corporation Representative Patent Attorney Satoshi Suyama - Figure 1 Figure 41 Figure 5

Claims (1)

[Claims] (1) A press device that molds a molded object while being fed sequentially by a press feeding device, the mandrel being arranged along the feeding direction of the press feeding device and moving up and down in accordance with the press operation; a forming punch that is disposed laterally and slides in the direction of the mandrel in response to the press operation to form the workpiece, and the workpiece that has been formed by the mandrel and the forming punch is A press device characterized in that it is configured to be discharged by sequential feeding of a feeding device.