JPH0724892B2 - Press machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a press device for continuously punch-pressing a hoop-shaped workpiece wound around a reel or the like.

“Prior Art” In recent years, with the development of computers and the like, a magnetic disk as a recording medium, a press device for punching a thin plate-like material such as a semiconductor lead frame, and the like have been shown in FIGS. 7 and 8. The ones shown in are provided.

In these figures, reference numeral 1 indicates the base of the press machine. The base 1 has a substantially rectangular parallelepiped shape, and a table 2 is provided on the upper surface of the base 1 so as to be movable in the XY (horizontal) direction in the drawing. A turret portion 3 having a fan-shaped plate shape is provided above the table 2 so as to be horizontally rotatable around an axis. As shown in FIG. 8, the turret portion 3 is composed of an upper turret 3a and a lower turret 3b provided so as to face the upper turret 3a. A plurality of upper molds 4 ... Are provided at a peripheral portion of the upper turret 3a at predetermined intervals in the circumferential direction. Each upper die 4 is provided so as to be slidable in the vertical direction with respect to the upper turret 3a, and the flange portion of the upper die 4 is provided.
A spring 5 is provided between the 4a and the upper turret 3a. On the other hand, on the peripheral portion of the upper surface of the lower turret 3b, lower molds 6 facing the respective upper molds 4 are provided at predetermined intervals in the circumferential direction.

A punch 7 for pressing the upper die 4 is provided above the turret 3. The punch section 7 is composed of a support section 7a and a pressing section 7b that is provided on the support section 7a so as to be vertically movable and presses the upper die 4.

Then, in the press device having the above-mentioned configuration, the workpiece 8 is inserted between the upper turret 3a and the lower turret 3b, and the clamp portion 9 is inserted.
By clamping and then rotating the turret part 3 or moving the table 1 in the XY directions to position the upper and lower molds 4, 6 corresponding to the machining shape on the portion of the workpiece 8 to be machined. Then, the upper die 4 is pressed by the pressing portion 7b of the punch portion 7 to press the workpiece 8.

[Problems to be Solved by the Invention] By the way, in the press device having the above-described structure, for example, a large number of products in a regular strip shape, which are subjected to press working, are manufactured from a hoop-shaped workpiece wound around a reel or the like. In this case, the hoop-shaped workpieces are cut out in advance, the workpieces in the form of strips are cut out, the workpieces are set one by one on the table 2, and the workpieces are pressed. There must be. Therefore, there is a problem that a great deal of labor is required to set the work piece on the table 2, and as a result, the productivity is reduced.

"Object of the Invention" The present invention has been made in view of the above problems, and can easily and efficiently provide a product in the form of a regular strip that is pressed from a hoop-shaped workpiece wound around a reel or the like. It is an object of the present invention to provide a press device that can be manufactured well.

"Means for Solving Problems" A pressing device according to the present invention is provided rotatably in the horizontal direction above a table movably provided in the pedestal in the horizontal direction, and has a plurality of molds at its peripheral edge. At least one of the positions where it sandwiches the plate-shaped turret part is provided with a reel around which a long work piece is wound so that it can rotate around its axis, and the table is placed inside the mold of the turret part. In addition, a transport mechanism for transporting a long work piece is provided.

[Operation] In the press device of the present invention, the workpiece wound around the reel is continuously transported into the mold attached to the turret portion by the transport mechanism while rotating the reel. The workpiece can be continuously pressed and cut.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

1 and 2 show a first embodiment of the present invention. In these figures, the same components as those shown in FIGS. 7 and 8 are designated by the same reference numerals and their description is omitted. Is omitted.

The pressing device shown in FIGS. 1 and 2 differs from the pressing device shown in FIGS. 7 and 8 in that the reel 10, 10 around which the long workpiece W is wound on the table 2 is rotated. It is rotatably installed around the turret 3 and the upper and lower molds 4, 6
The point is that a transport mechanism 11 for transporting a long workpiece W is provided between them.

That is, the support portions 12, 12 are provided upright on the left and right side portions of the upper surface of the table 2 in FIG. The rotation shafts 10a, 10a of the reels 10, 10 are rotatably supported at the tips of the support portions 12, 12. A long workpiece W is wound around these reels 10 and 10 so as to pass between the reels 10 and 10. The central portion in the longitudinal direction of the workpiece W located between the reels 10 and 10 is a turret. It is inserted between the upper mold 4 and the lower mold 6 provided in the part 3. Also, the above-mentioned supporting parts 12, 1
On the upper surface of the table 2 which is located inside 2, the clamp part 15,
15 are provided apart from each other in the left-right direction. As shown in FIG. 2, the clamp portion 15 is composed of an upper clamper 15a and a lower clamper 15b. The workpiece W inserted between the upper and lower clampers 15a and 15b is clamped. It is designed to be clamped.

Further, a transport mechanism 11 is provided on the upper surface of the table 2 located between the support portion 12 and the clamp portion 15 on the left side in FIG. The transport mechanism 11 is for feeding the workpiece W wound around the reels 10 and 10 on the table 2 in the direction of arrow B by a constant pitch, and as is generally known, the workpiece W is processed. A feed roller that feeds W and a detector that detects the feed amount are incorporated. Further, the transport mechanism 11 is a workpiece W sent from the reel 10 on the left side.
Is to be a leveler that keeps the table parallel to the upper surface of the table 2.

Next, a method of performing the press work on the workpiece W wound around the reels 10 by using the press device having the above configuration will be described.

First, the clamps 15 and 15 are opened to rotate the left and right reels 10 and 10 in the arrow A direction in the figure, and the transport mechanism 11 is operated to move the workpiece W on the table in the arrow B direction in the figure. Move by a predetermined pitch.

Next, the clamp parts 15 and 15 are closed, the turret part 3 is rotated, or the table 1 is moved in the X-Y directions so that the upper and lower parts of the workpiece W to be machined are matched with the machining shape. Position the dies 4 and 6 and press the punch 7
The workpiece W is pressed by pressing the upper die 4 with b.

Then, the work W is continuously pressed by repeating the steps and.

Further, in order to cut the pressed work W to a fixed length, the reel 10 around which the pressed work W is wound is attached to the left support portion 12, and the turret is attached. The upper and lower molds 4 and 6 for cutting are attached to the part 3, and the transfer mechanism 11 is operated to move the workpiece W onto the table 2.
Move the top in the direction of arrow B in Fig. 1 to cut dies 4,6
To cut sequentially. The right reel 10 is not required for this cutting operation.

According to the above-mentioned press machine, the reels 10 and 10 on which the long workpiece W is wound on the table 2 are rotatable around the axes by sandwiching the upper and lower molds 4 and 6 of the turret portion 3. In addition to the above, a transport mechanism 11 for transporting the workpiece W between the upper and lower molds 4 and 6 is provided, so that the workpiece W wound around the reel 10 can be continuously pressed. Further, a cutting process can be performed. Therefore, it is possible to easily and efficiently manufacture a product in the form of a fixed-length strip, which has been pressed from the hoop-shaped workpiece W.

FIG. 3 shows a second embodiment of the pressing apparatus of the present invention. The pressing apparatus shown in this figure differs from the pressing apparatus shown in FIG. 1 in that the reels 10, 10 are provided outside the table 2. It is a point.

That is, support columns 20 and 20 are erected on the left and right floor surfaces of the table 2 in FIG. 3, respectively.
Rotating shafts 10a, 10a of the reels 10, 10 are rotatably supported at the tip of the reel. These reels 10, 10 are configured to receive a signal from the table 2 and move in synchronization with the movement of the table 2. That is, the reels 10 and 10 are the table 2
Moves in the X direction in the figure, the workpiece W is rotated by that amount to feed and wind the workpiece W, and when the table 2 is moved in the Y direction, the rotary shafts 10a, 10a are moved in the Y direction by that amount. It is designed to be moved to. The rotation of the reels 10 and 10 is performed by a motor, and the rotation shafts 10a and 10a are moved by a motor using a rack and pinion mechanism or a ball screw.

In the pressing device having the above-described configuration, the work W wound on the reels 10, 10 is pressed in the same manner as the press device of the first embodiment, but the portion of the work W to be processed is pressed. When positioning the upper and lower molds 4 and 6, move the table 2 to XY
When it is moved in the direction, the reels 10 and 10 rotate and the rotary shafts 10a and 10a move in the Y direction in accordance with the movement, so that an unreasonable tensile force does not act on the workpiece W.

According to the pressing device having the above-described configuration, in addition to the effects of the pressing device of the first embodiment, the reels 10, 10 and the supporting columns 20, 20 are provided outside the table 2, so that the load applied to the table 2 by that much. Therefore, the table 2 can be moved more smoothly and accurately.

FIGS. 4 to 6 show the essential parts of the pressing device of the third embodiment. The pressing device shown in these figures differs from the pressing device shown in FIG. 1 in that the upper and lower molds 4, A transfer mechanism that transfers the workpiece W between the six.

That is, as shown in FIG. 4, the left and right end portions of the table 2 are provided with clamp portions 30 and 31 for clamping the workpiece W, which are spaced from each other. These clamp parts 30, 31 are structurally the same as the clamp part 15 shown in FIG. 1, but one end of the clamp part 30 is fixed to the outside of the table 2 (for example, the upper surface of the base part 1), Even if the table 2 moves, the clamp portion 30 does not move. Like the clamp portion 15, the clamp portion 31 has one end fixed to the table 2 and is configured to move as the table 2 moves.

With the above configuration, the workpiece W is processed as follows.
To feed. That is, during press working, as shown in FIG. 4, the clamp portion 30 is opened and the clamp portion 31 is opened.
Close. When the workpiece W is conveyed, the clamp part 30 is closed and the clamp part 31 is opened to move the table 2 in the arrow C direction. Then, as shown in FIG. 5, the workpiece W is relatively transported on the table 2 in the direction of arrow D. Next, the clamp part 30 is opened again, the clamp part 31 is closed, and the table 2 is moved in the direction of arrow D. Then, as shown in FIG. 6, the workpiece W is conveyed in the direction of arrow D as the table 2 moves. In this way, the workpiece W is conveyed by a predetermined pitch.

According to the pressing device having the above-described configuration, in addition to the effects of the pressing device of the first embodiment, the workpiece W is moved by moving the table 2.
Since the sheet is conveyed, the conveying mechanism 11 as shown in FIG. 1 is not necessary, and the cost of the pressing device can be reduced by that much. Further, the feed accuracy of the workpiece W can be made equal to the punching pitch.

In the above embodiment, the hoop-shaped workpiece W wound on the reel 10 was pressed, rewound, and then cut, but the present invention is not limited to this.
The dies 4 and 6 for cutting may be attached to and the press working and the cutting working may be performed in the same step.

"Effects of the Invention" As described above, according to the press device of the present invention,
A long work piece is rotatably provided above a horizontally movable table, and at least one of the positions where a turret portion having a plurality of molds attached to its peripheral edge is sandwiched therebetween. The reel around which the reel is wound is provided rotatably around the axis, and the conveyor mechanism that conveys the workpiece into the mold of the turret is installed on the table. Can be pressed and further cut. Therefore, it is possible to easily and efficiently manufacture a product in the form of a fixed-length strip, which has been pressed from the hoop-shaped workpiece.

[Brief description of drawings]

1 to 6 show an embodiment of the press device according to the present invention. FIGS. 1 and 2 show a first embodiment, and FIG. 1 is a schematic configuration diagram of a press machine, and FIG.
FIG. 4 is a cross-sectional view of the clamp part, FIG. 3 is a schematic configuration diagram of a pressing device according to the second embodiment, and FIGS. 4 to 6 are main parts of the pressing device according to the third embodiment. The figure is a plan view showing a state in which the workpiece is clamped, FIG. 5 is a plan view showing the state in which the workpiece is conveyed, and FIG. 6 is a plane showing the state in which the workpiece is completely conveyed. FIG. 7, FIG. 7 and FIG. 8 show an example of a conventional pressing device, FIG. 7 is a schematic configuration diagram of the pressing device, and FIG. 8 is a sectional view of a main part of a turret portion. 1 ... stand part, 2 ... table, 3 ... turret part, 4,6 ... die, 7 ... punch part, 10 ... reel, 11 ... transport mechanism, W ... workpiece.

Claims (3)

[Claims] 1. A plate-shaped turret having a table movably provided in a horizontal direction on a base and a table rotatably provided in a horizontal direction above the table and having a plurality of molds attached to a peripheral edge thereof. And a punching device that is provided above the turret portion so as to be movable in the vertical direction and presses the die, at least one of the positions where the turret portion is sandwiched, A reel around which a long workpiece is wound is provided rotatably around an axis, and a transport mechanism for transporting the long workpiece in the mold of the turret is provided on the table. Characteristic press equipment. 2. The press device according to claim 1, wherein the reel is provided on the table. 3. The press device according to claim 1, wherein the reel is provided outside the table so as to be movable in the axial direction of the reel.