JPH11156401A - Plate thickness rolling reduction pressing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quicken the exchanging work of dies and to improve the reduction efficiency of a plate thickness with a press by using a die fastening member integrally fastening the upper and the lower dies and freely attaching/detaching to and from the press body with a die exchanging mechanism. SOLUTION: The upper die 29a is fitted so as to project to the outside in the conveying direction at the upper surface and provided with rollers 33 for die arranged as shiftable along cradle guide rails 31 and further, a dovetail groove 34a passed through in the width direction of the conveying line at the center part of the upper surface. Further, the lower die 29b is provided with a dovetail groove 34b passed through in the width direction of the conveying line along a square groove 32 in a lower die receiving table 28b. At the time of exchanging the dies, the die fastening member 38 is used and the upper and the lower dies 29a, 29b are integrally fastened with bolts and drawn out on a die exchanging mechanism provided at the side surface of the press. This mechanism is faced to the cradle guide rails 31 and provided with guide rails which can rollingly move the roller 33 for die so that it is possible to hang down the integral upper and lower dies 29a, 29b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate thickness reduction press.

[0002]

2. Description of the Related Art FIGS. 10 and 11 show an example of a conventional thickness reduction press. The thickness reduction press is composed of a frame 1 provided at a predetermined position on a transfer line S. FIG.
A guide column 3 provided inside the frame 1 so as to allow the material 2 to advance, and a lower mold base 4 fixed to a lower end of the guide column 3 in a substantially horizontal state; An upper mold table 5 fitted to the guide column 3 so as to be able to move up and down so as to face the lower mold table 4 with the transport line S interposed therebetween;
A crankshaft (not shown) that is located above the upper mold base 5 and extends substantially horizontally in a direction perpendicular to the transport line S, and has a non-eccentric portion pivotally supported on the frame 1 via a bearing. And a lower mold 8 and an upper mold 9 mounted on the lower mold table 4 and the upper mold table 5 so as to face each other with the transport line S interposed therebetween.

The lower mold base 4 has a dovetail groove 10 extending on the upper surface in the direction of the transport line. The lower slide is fitted movably in the dovetail groove 10 and wedge-fitted to the lower die 8 by a cotter 11. A plate 12 is provided, and a lower die 8 is mounted on the upper surface of the lower slide plate 12.

The upper mold base 5 is pivotally supported by an eccentric portion of a crankshaft (not shown), and reciprocates vertically along the guide post 3 with rotation of the crankshaft. Has a dovetail groove 13 extending in the direction of the transport line,
An upper slide plate 15 is movably fitted in the dovetail groove 13 and wedge-fitted to the upper mold base 5 by a cotter 14.

At the center of the upper slide plate 15, a circumferential groove 17 is provided.
a lower surface of an upper mold receiving base 18 having a flange 18a on its outer periphery which fits into the peripheral groove 17a of the through hole 17 and inserted into the through hole 17 from above. The upper mold 9 is mounted on the upper mold.

[0006] The crankshaft is connected to an output shaft (not shown) of the motor via a universal joint and a speed reducer. The upper die 9 mounted on the upper die base 5 via the upper die receiving base 18 is moved closer to and away from the lower die 8.

When the material 2 is to be pressed down in the sheet thickness direction by the sheet thickness pressing press shown in FIGS. 10 and 11, the motor is operated to rotate the crankshaft, and the upper die 9 and the lower die 9 are moved downward. When the molding material 2 is inserted between the mold 8 and the conveying line upstream A, the molding material 2 moves along the conveying line S from the conveying line upstream A to the conveying line downstream B. While the eccentric portion of the crankshaft is being displaced, the upper die 9 is moved downwardly toward and away from the transfer line S to form a press-down molding in the thickness direction.

When the lower mold 8 is replaced, the cotter 11 that wedges the lower slide plate 12 to the lower mold base 4 is pulled out, and the lower slide plate 12 is moved to the groove of the lower mold base 4. 10, the lower die 8 is moved out of the plate thickness reduction press, and the lower die 8 mounted on the lower die base 4 is released from the lower die base 4. The mold 8 is lifted by a lifting facility (not shown), carried out to a predetermined place, and a new lower mold 8 is lifted by the same lifting facility, loaded onto the lower slide plate 12, and mounted. Slide plate 12
Is pressed into the central portion of the plate thickness reduction press device along the dovetail groove 10 of the lower mold base 4 and wedge-fitted to the lower mold base 4 by the cotter 11.

When replacing the upper mold 9, the cotter 14 that wedges the upper slide plate 15 to the upper mold table 5 is pulled out,
The upper slide plate 15 is pulled out along the groove 13 of the upper mold base 5 and the upper mold base 5 is moved out of the plate-thickness press-down device. Mold cradle 18
Is lifted by a lifting facility (not shown), carried out to a predetermined place, and after removing the upper mold table 5 from the upper mold receiving table 18, a new upper mold table 5 is transferred to the upper mold receiving table. After being mounted on the table 18, the upper mold receiving table 18 is lifted by the above-mentioned lifting equipment, carried into the upper slide plate 15, fitted into the through hole 17 of the upper slide plate 15, and Slide plate 15
Is pushed into the central portion of the plate thickness reduction press along the groove 13 of the upper mold base 5, and is wedged to the upper mold base 5 by the cotter 14.

[0010]

However, in the plate thickness reduction press shown in FIGS. 10 and 11, since the lower die 8 and the upper die 9 are severely worn, the frequency of replacing each die 8, 9 is high. Therefore, unless the mold exchanging work is speeded up, the sheet thickness reduction capability of the sheet thickness reduction press device having a high efficiency at the angle cannot be exhibited.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a plate-thickness pressing apparatus capable of efficiently performing a mold changing operation.

[0012]

In order to achieve the above-mentioned object, a plate-thickness reduction press device according to the first aspect of the present invention faces up and down across a conveying line of a material to be molded and moves close to and away from each other. An upper die receiving base and a lower die receiving base to be obtained; a receiving guide rail provided on the upper die receiving base and extending substantially horizontally in the width direction of the transfer line; and rolling along the receiving base guide rail. An upper mold having a mold roller to be obtained and mounted on an upper mold pedestal by the mold roller; a fixture capable of fixing the upper mold to the upper mold cradle; and a lower mold. A lower mold placed on the pedestal, a fixture capable of fixing the lower mold to the lower mold pedestal, and opposed to both sides of the upper and lower dies and fastened to both dies. And a mold exchanging mechanism capable of moving one of the mold fastening members substantially horizontally in the width direction of the transport line.

According to a second embodiment of the present invention, in addition to the configuration of the first embodiment of the present invention, in addition to the configuration of the first embodiment, a guide rail is provided on the side of the transfer line. A gantry having an external guide rail that can face and roll the mold roller, and a moving member roller that can roll along the external guide rail; and A mold changing mechanism is constituted by a moving member to be mounted, an actuator capable of moving the moving member in the width direction of the transport line, and a connecting member provided on the moving member and connectable to one of the mold fastening members. I do.

According to a third aspect of the present invention, in addition to the configuration of the thickness reduction press according to the second aspect of the present invention, the thickness reduction press has a plurality of die changing mechanisms. A mold exchanging mechanism is mounted on a turntable arranged on the side of the transport line so that each external guide rail can face the cradle guide rail as the turntable rotates.

According to a fourth embodiment of the present invention, in addition to the configuration of the second embodiment, a plurality of mold changing mechanisms are provided. A mold exchanging mechanism is mounted on a truck moving along the transport line arranged on the side of the transport line so that each external guide rail can face the receiving guide rail as the truck moves.

According to a fifth embodiment of the present invention, in addition to the configuration of the first embodiment of the present invention, in addition to the configuration of the first embodiment of the present invention, a guide rail is provided at the side of the transfer line. A pedestal having an external guide rail that can be directly faced and on which a mold roller can roll; and a frame that can be locked at one end to one mold fastening member on one side of the transfer line and has the other end connected to the transfer line. A tow line that can be locked to the other mold fastening member on the other side and a winch that selectively pulls the tow line to one side and the other side of the transport line constitute a mold exchange mechanism. I do.

According to a sixth embodiment of the present invention, in addition to the configuration of the first embodiment of the present invention, in addition to the configuration of the first embodiment of the present invention, there are provided two gantry units. Are arranged on both sides of the transfer line so that the outer guide rails can face the guide rails.

In any of the plate-thickness pressing apparatuses according to the first to sixth aspects of the present invention, the upper mold is fixed to the upper mold receiving stand by the upper fixing tool, and the lower fixing is performed. The lower mold is fixed to the lower mold receiving stand by the tool.

In a state in which the upper fixture and the lower fixture are opened, the upper mold and the upper mold which are integrally connected by a mold fastening member and hung on a receiving guide rail via mold rollers. The lower die is moved in the width direction of the transport line by the die changing mechanism.

[0020] In the plate thickness reduction press device according to the second aspect of the present invention, when the upper fixing tool and the lower fixing tool are opened and the external guide rail is directly opposed to the receiving guide rail, After the upper mold and the lower mold are integrally joined by a mold fastening member and suspended on a receiving guide rail via a mold roller, the moving member is connected to one of the mold fastening members via a connecting member. By connecting and moving the moving member in the width direction of the transfer line along the external guide rail by the actuator of the die changing mechanism, the integrated upper die and lower die can be externally guided from the receiving guide rail. Move to rail or from external guide rail to cradle guide rail.

In the plate thickness reduction press device according to the third aspect of the present invention, the external guide rail of a predetermined die changing mechanism of the plurality of die changing mechanisms is located at a position directly facing the receiving guide rail. By turning the turntable, the old upper mold and the lower mold to be replaced with the upper fixing tool and the lower fixing tool released are integrally joined by a mold fastening member through a mold roller. After being hung on the guide guide rail, the moving member is connected to a predetermined mold fastening member via a connecting member, and the moving member is moved in the direction opposite to the transport line along the external guide rail by the actuator of the mold changing mechanism. By moving, the old upper mold and the lower mold are moved from the receiving guide rail to the external guide rail of a predetermined mold changing mechanism.

At the same time, a new upper mold and a lower mold integrated by a mold fastening member are placed on an external guide rail of another mold exchanging mechanism, and are moved to the mold fastening member via a connecting member. Connect the members.

Thereafter, the turntable is rotated to a position where the external guide rail of the other mold exchanging mechanism faces the guide rail of the receiving table, and the actuator of the other mold exchanging mechanism is operated to move the moving member to the external guide rail. The new upper mold and the lower mold are moved to the receiving guide rail by moving in the direction of the transport line along, and the upper mold is fixed by the upper fixing tool after removing the mold fastening member. Then, the lower mold is fixed by the lower fixing tool.

According to a fourth aspect of the present invention, in the plate thickness reduction press apparatus, one of the plurality of mold exchanging mechanisms has a position where the external guide rail of the mold exchanging mechanism faces the guide rail of the receiving table. The truck is moved to the upper mold and the lower mold are opened, and the old upper mold and the lower mold to be exchanged, which are opened, are integrally connected by the mold fastening member, and are received via the mold rollers. After hanging on the base guide rail, the moving member is connected to one of the mold fastening members via the connecting member,
The old upper mold and the lower mold are moved from the receiving guide rail to the external guide rail of the mold changing mechanism by moving the moving member in the direction opposite to the conveyance line along the external guide rail by the actuator of the mold changing mechanism. Move to

At the same time, a new upper mold and a lower mold integrated by a mold fastening member are placed on an external guide rail of another mold exchanging mechanism, and a connecting member is attached to the mold fastening member. The moving member is connected via the connecting member.

Thereafter, the carriage is moved to a position where the outer guide rail of the mold exchanging mechanism faces the guide rail of the receiving table.
Actuating the actuator of the mold changing mechanism to move the moving member along the external guide rail in the direction of the transport line, thereby moving the new upper mold and lower mold to the receiving guide rail and fastening the mold. After removing the members, the upper mold is fixed by the upper fixing tool, and the lower mold is fixed by the lower fixing tool.

[0027] In the plate thickness reduction press apparatus according to the fifth aspect of the present invention, the old upper mold and the lower mold to be exchanged by opening the upper fixing tool and the lower fixing tool are joined by the mold fastening member. After being integrally coupled and suspended from the guide rails via the mold rollers, one end of the tow line is engaged with one mold fastening member, and the other end is engaged with the other mold fastening member. Stop.

Thereafter, the winch of the mold exchanging mechanism is actuated so that the towing line is wound in the direction in which the mold roller moves toward the gantry, thereby moving the old upper mold and lower mold to the gantry side. After the transfer, the old upper mold and the lower mold are replaced with new upper molds and lower molds, and are suspended from the mold rollers.

By operating the winch of the mold exchanging mechanism so that the tow rope is wound in the direction in which the mold roller moves toward the receiving guide rail, the new upper mold and the lower mold are moved. After moving to the pedestal guide rail side and removing the mold fastening member, the upper mold is fixed by the upper fixing tool, and the lower mold is fixed by the lower fixing tool.

In the plate thickness reduction press device according to the sixth aspect of the present invention, the old upper mold and the lower mold to be exchanged by opening the upper fixing tool and the lower fixing tool are joined by the mold fastening member. After being integrally joined and suspended from the guide rails via the mold rollers, one end of the towing line is engaged with one mold fastening member, and the other end is engaged with the other mold fastening member. Stop.

At the same time, a new upper mold and a new lower mold integrated by a mold fastening member are placed on the outer guide rail of the stand on one side.

Thereafter, the old upper mold and the lower mold are operated by operating the winch of the mold exchanging mechanism so that the towing rope is wound in the direction in which the mold roller moves to the other gantry side. Transfer to the other stand.

Then, one end of the towing cable removed from the mold fastening member connecting the old upper mold and the lower mold is connected to one end of the mold fastening member connecting the new upper mold and the lower mold. , And the other end is locked to the other mold fastening member, and the mold is changed so that the towing cable is wound in the direction in which the mold roller of the new upper mold moves to the pedestal guide rail side. By actuating the winch of the mechanism, the new upper mold and lower mold are moved to the pedestal guide rail side, the mold fastening member is removed, and the upper mold is fixed by the upper fixture, and the lower mold is fixed. Fix the lower mold by the side fixture.

[0034]

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

FIG. 1 to FIG. 5 show a first example of an embodiment of a plate thickness reduction press apparatus according to the present invention.

As shown in FIGS. 1 and 2, the press body 20 includes a housing 21 erected at a predetermined position of the transport line S so as to allow the material 2 to advance, and a press body 20 with the transport line S interposed therebetween. The upper shaft box 23a and the lower shaft box 23b fitted in the window portion 22 of the housing 21 so as to face the
And a non-eccentric portion extending substantially horizontally in a direction orthogonal to the transport line S and having a non-eccentric portion via a bearing (not shown).
or upper and lower crankshafts 24a, 24b pivotally supported by the lower shaft box 23b, and upper and lower crankshafts which are respectively positioned above and below the transport line S and whose base ends are pivotally supported by eccentric portions of the crankshafts 24a, 24b. Rods 25a and 25b extending to
And bracket 26 at the tip of rods 25a and 25b.
a and 26b connected to each other via an upper mold base 27a, an upper mold 29a mounted on the upper mold base 27a via an upper mold receiving stand 28a, Mold stand 27
lower mold 29b mounted on lower mold b via lower mold receiving stand 28b
And

The crankshafts 24a and 24b are connected to a motor output shaft (not shown) via a universal joint and a speed reducer (not shown). When the motor is operated, the upper and lower dies 29a and 29b are transported. It is designed to synchronize with and approach the line S.

The upper mold stand 27a and the lower mold stand 27b are slidably fitted in the window 22 of the housing 21,
A fluid pressure cylinder 30 is provided at the center of the piston rod so that the tip of the piston rod extends through the upper mold receiving base 28a or the lower mold receiving base 28b.

The upper mold receiving table 28a is fixed to the lower surface of the upper mold table 27a, opposes at a predetermined interval in the conveying line direction, and extends in the width direction of the conveying line S in parallel with each other.
The lower surface has a receiving guide rail 31 whose upper part is formed in a mountain shape.

The lower mold receiving table 28b is fixed to the upper surface of the lower mold table 27b, and has a width suitable for the length of the lower mold 29b in the conveying line direction and extends in the width direction of the conveying line S. 3
2 on the upper surface.

The upper molds 29a are mounted on both sides of the upper surface of the upper surface in the direction of the conveying line so as to project outward and are arranged in a cascade such that they can roll along the guide rails 31. And a dovetail groove 34a penetrating in the width direction of the transport line at the center of the upper surface.

When the upper mold 29a is mounted on the upper mold receiving base 28a, the dovetail groove 34a is used for the fluid pressure cylinder 3a.
When the fluid pressure is applied to the rod side fluid chamber of the fluid pressure cylinder 30, the groove 34 is formed by the piston rod tip.
a of the upper mold 2 is pressed against the upper mold receiving base 28a.
9a is fixed to the upper mold receiving base 28a.

The lower mold 29b is connected to the lower mold receiver 28b.
Has a length in the transport line direction that can move along the square groove 32, and has a dovetail groove 34b penetrating in the width direction of the transport line S at the center of the lower surface.

When the lower mold 29b is mounted on the lower mold receiving base 28b, the dovetail groove 34b is used to hold the hydraulic cylinder 3b.
When the front end of the piston rod 0 is fitted and fluid pressure is applied to the rod-side fluid chamber of the fluid pressure cylinder 30, the side edge of the groove 34b is pressed against the lower mold receiving base 28b by the front end of the piston rod. The lower mold 29b is fixed to the lower mold receiving stand 28b.

The upper mold 29a and the lower mold 29b are
Flat forming surfaces 35a, 35 gradually approaching the transfer line S from the transfer line upstream A side to the transfer line downstream B side.
b, and flat molding surfaces 36a, 36b which are continuous with the molding surfaces 35a, 35b and face the transport line S in parallel.

The width of each of the molds 29a and 29b is set according to the plate width of the molding material 2 (about 2000 mm or more).

On the upper part of the housing 21, an upper axle box 23a
A position adjusting screw 37 is provided for moving the position adjusting screw 37 toward and away from the transport line S. By rotating the position adjusting screw 37 in the circumferential direction, the crankshaft 24a, the rod 25a, and the upper mold base 27a The upper mold 29a is moved up and down via the above-mentioned operations, and the distance between the upper mold 29a and the lower mold 29b, that is, the amount of reduction of the molding material 2 is adjusted.

The mold fastening member 38 includes upper and lower molds 29.
When exchanging a and 29b, the upper mold 29a and the lower mold 29b
Are provided for fastening together.

The mold fastening member 38 includes upper and lower molds 29.
a and 29b, each having a projection 38a which can be in contact with both side surfaces in the conveying line width direction and which can be sandwiched between upper and lower molds 29a and 29b on the contact surface side. A pair of left and right members formed so as to be able to be bolted to the mold 29b, respectively, and a surface as shown in FIG. 39 are provided.

As shown in FIGS. 3 and 4, the mold exchanging mechanism 40 is provided at the side of the transfer line S with the receiving guide rail 3.
1 has a base 42 provided with an external guide rail 41 capable of directly facing and rolling the mold roller 33, and a moving member roller 43 capable of rolling along the external guide rail 41; A moving member 44 mounted on the gantry 42 by the moving member roller 43;
And a connecting member 46 provided on the moving member 44 and connectable to the bracket 39 of one of the mold fastening members 38.

The pedestal 42 has a base 47 and a gate-shaped column 48 erected at predetermined intervals in the width direction of the transfer line S on the base 47, and the external guide rail 41
Is supported by an arm 49 which is provided at a predetermined height inside the support column 48 and protrudes inward, and has a rectangular cross section in which the upper part is formed in a mountain shape.

The moving member 44 has a moving member main body 50 and legs 51 provided at four corners of the moving member main body 50 and extending upward, and the external guide rail 41 is directly opposed to the receiving guide rail 31. At this time, one end of the connecting member 46 is bolted to the transport line side of the two legs 51 located on the transport line side.

Two moving member rollers 43 are provided at the top of each leg 51 so as to sandwich the external guide rail 41 from above and below.

The fluid pressure cylinder 45 has a cylinder portion pivotally supported near the center of the upper surface of the base 47 of the gantry 42 near the transfer line, and a tip end portion of the piston rod pivotally supported by the lower surface of the moving member main body 50. When the fluid pressure is applied to the rod-side fluid chamber of the fluid pressure cylinder 45, the moving member 44 moves to the transport line side, and the head-side fluid is moved. When a fluid pressure is applied to the chamber, the moving member 44 moves to the side opposite to the transport line.

1 to 5, a turntable 52 is provided near the press body 20 on the side of the transfer line S, and a turntable 52 is provided on the upper surface of the turntable 52 at a predetermined interval. The base mold exchange mechanism 40 is arranged,
By rotating the turntable 52,
The external guide rails 41 of the respective mounts 42 are mounted so as to be able to face the receiving guide rails 31 of the press body 20.

When the material 2 is to be pressed down in the plate thickness direction by the plate thickness pressing press shown in FIGS.
By appropriately rotating the position adjusting screw 37, the interval between the upper mold 29a and the lower mold 29b is set in accordance with the thickness of the material 2 to be reduced in the thickness direction.

Next, the motor is operated to rotate the upper and lower crankshafts 24a, 24b,
a and the lower mold 29b, the molding material 2 is inserted from the upstream of the transport line A to the downstream of the transport line A along the transport line S. The upper mold 29a and the lower mold 29b which approach and separate from the transfer line S with the displacement of the eccentric portions of the crankshafts 24a and 24b while being moved in the sheet thickness direction.

When exchanging the upper mold 29a and the lower mold 29b, the mold fastening members 38 are brought into contact with both sides of the upper and lower molds 29a and 29b, and the projections 38a are connected to the upper and lower molds 29a. , 29b and then bolted together to integrate the upper mold 29a and the lower mold 29b, and then to the head side fluid chamber of the fluid pressure cylinder 30 which fixes the upper and lower molds 29a, 29b. By applying the fluid pressure, the molds 29a, 29b fixed to the mold receiving tables 28a, 28b are opened, and the press body 20 is pressed.
Of the upper mold receiving base 28a and the lower mold receiving base 28
The distance from b is slightly separated.

Next, the turntable 52 is rotated,
The external guide rail 41 of the gantry 42 of one of the two mold exchanging mechanisms 40 provided on the turntable is positioned so as to face the receiving guide rail 31 of the press body 20. Stop.

The moving member 44 is moved to the press body side by applying a fluid pressure to the rod side fluid chamber of the fluid pressure cylinder 45 of the mold exchanging mechanism 40, and the moving member 44 and the mold fastening member 38 are connected to each other. Connecting member 4 with bracket 39
6 and then apply fluid pressure to the head-side fluid chamber of the fluid pressure cylinder 45 to move the moving member 44.
Is moved to the side opposite to the press body, the upper mold 29a and the lower mold 29b integrated by the mold fastening member 38 are received via the mold roller 33 provided in the upper mold 29a. As a result of being guided by the base guide rail 31 and moving to the external guide rail 41 side, the upper mold 29a and the lower mold 29b
At the same time is pulled out of the press body 20 and transferred to the gantry 42 of the mold changing mechanism 40.

During this time, the external guide rails 41 of the gantry 42 of the other mold exchanging mechanism 40 provided on the turntable 52
Then, a new upper mold 29a and a new lower mold 29b vertically integrated by another mold fastening member 38 are attached, and the bracket 39 of the mold fastening member 38 and the moving member 44 of the mold changing mechanism 40 are attached. It is connected and placed via the connecting member 46.

The turntable 52 is rotated again, and the external guide rail 41 of the mount 42 of the other mold exchanging mechanism 40 of the two mold exchanging mechanisms 40 provided on the turntable 52 is moved to the press body 20. Is stopped at a position directly opposite to the receiving guide rail 31.

Here, when the moving member 44 is moved toward the press body by applying a fluid pressure to the rod-side fluid chamber of the fluid pressure cylinder 45 of the mold exchanging mechanism 40, the connecting member 46 is connected to the moving member 44. Upper mold 29a vertically integrated by a mold fastening member 38 connected via
And the lower mold 29b are guided by the external guide rail 41 via the mold roller 33 provided on the upper mold 29a and move to the receiving guide rail 31 side. As a result, the upper mold 29a
And the lower mold 29b are simultaneously mounted on the mount 42 of the mold changing mechanism 40.
From the press body 20.

At this time, the upper and lower dies 2a are inserted into the respective dovetail grooves 34 provided in the upper and lower dies 29a and 29b.
The tip ends of the piston rods of the fluid pressure cylinders 30 to which 9a and 29b are to be fixed automatically fit respectively.

After the upper mold 29a and the lower mold 29b are transferred to the press body 20, the connection of the connecting member 46 connected to the mold fastening member 38 is released, and the motor of the press body 20 is operated. The distance between the upper mold receiving table 28a and the lower mold receiving table 28b is slightly approached, and the upper and lower molds 29a, 29b
After removing the mold fastening members 38 which are bolted to both sides of the fluid pressure cylinder 30, fluid pressure is applied to the rod side fluid chamber of the fluid pressure cylinder 30 to which the upper and lower molds 29a and 29b are to be fixed. The molds 29a and 29b are fixed to the mold receiving tables 28a and 28b.

By the above operation, each mold 29a, 29
The exchange of b ends.

As described above, in the plate thickness reduction press apparatus shown in FIGS. 1 to 5, the mold fastening member 38 capable of vertically and integrally fastening the upper mold 29a and the lower mold 29b is provided. Since the upper mold 29a and the lower mold 29b integrated by the fastening member 38 are provided with the mold exchanging mechanism 40 which is detachable from the press body 20, the upper mold 29a and the lower mold 29 are provided.
The replacement work of b can be performed quickly, and the thickness reduction efficiency of the thickness reduction press device can be maintained at a high level.

FIGS. 6 to 8 show a second example of the embodiment of the plate thickness reduction press according to the present invention, in which the same reference numerals as in FIGS. 1 to 5 denote the same parts. Represents an object.

In this plate-thickness press machine, a truck 53 is disposed on one side of the transfer line S and extends in parallel with the transfer line S, and a truck 54 that can move along the track 53. And a fluid pressure cylinder 55 capable of moving the carriage 54, and two mold exchanging mechanisms 40 mounted on the carriage 54.

The track 53 includes a base frame 56 disposed near the press body 20 on one side of the transfer line S and a base frame 56 on the upper surface of the base frame 56 at a predetermined interval in the width direction of the transfer line S. It is formed by a pair of rails 57 provided so as to be parallel and extend substantially horizontally along the transport line S.

The bogie 54 has a vehicle body 59 having a plurality of wheels 58 that can roll along the rails 57 and formed so as to mount the die changing mechanism 40.
The outer guide rails 41 of the pedestals 42 of the two die changing mechanisms 40 mounted on the upper part 9 can face the pedestal guide rails 31 of the press body 20 with the movement of the carriage 54. I have.

The fluid pressure cylinder 55 is disposed substantially horizontally inside the base frame 56 of the track 53, the cylinder portion is pivotally supported by the base frame 56 of the track 53, and the tip end of the piston rod is formed on the body 59 of the truck 54. The carriage 54 is pivotally supported by a bracket 60 provided on the lower surface and applies fluid pressure to the head-side fluid chamber or the rod-side fluid chamber.
Can be moved.

When replacing the upper mold 29a and the lower mold 29b, the upper mold 29a and the lower mold 29b are integrated by the same operation as the plate thickness reduction press shown in FIGS. The molds 29a and 29b fixed to the mold cradles 28a and 28b are opened to slightly separate the space between the upper mold cradle 28a and the lower mold cradle 28b.

Next, fluid pressure is applied to the head-side fluid chamber or the rod-side fluid chamber of the fluid pressure cylinder 55 to
4 and the two mold changing mechanisms 4 provided on the carriage 54.
The external guide rail 41 of the gantry 42 of one of the mold exchanging mechanisms 40 is stopped at a position facing the pedestal guide rail 31 of the press body 20.

Thereafter, the upper mold 29a and the lower mold 29b are simultaneously pulled out of the press body 20 by the same operation as the plate-thickness pressing press shown in FIGS. 1 to 5, and transferred to the mount 42 of the mold changing mechanism 40. Put on.

In the meantime, the new upper mold 2 which is vertically integrated with the external guide rail 41 of the mount 42 of the other mold changing mechanism 40 provided on the carriage 54 by another mold fastening member 38.
9a and the lower mold 29b are mounted, and the bracket 39 of the mold fastening member 38 and the moving member 44 of the mold changing mechanism 40 are connected via the connecting member 46 and placed.

The carriage 54 is moved again, and the external guide rail 41 of the gantry 42 of the other mold exchanging mechanism 40 of the two mold exchanging mechanisms 40 provided on the It is stopped at a position facing the guide rail 31.

Here, the new upper mold 29a and the new lower mold 29b are simultaneously moved from the gantry 42 of the mold exchanging mechanism 40 to the press body 20 by the same operation as the plate-thickness press apparatus shown in FIGS. Then, the molds 29a, 29b are fixed to the mold receiving tables 28a, 28b.

By the above operation, each mold 29a, 29
The exchange of b ends.

As described above, in the plate thickness reduction press apparatus shown in FIGS. 6 to 8 as well, as in the first embodiment of the present invention shown in FIGS. 1 to 5, the upper mold 29a and the lower mold 29b are formed. Can be performed quickly, and the sheet thickness reduction efficiency of the sheet thickness reduction press device can be maintained at a high level.

FIG. 9 shows a third example of the embodiment of the plate thickness reduction press according to the present invention, in which the same reference numerals as in FIGS. 1 to 5 indicate the same parts. .

The mold exchanging mechanism 61 is arranged on both sides of the transport line S, and is an external guide rail which can directly face the receiving guide rail 31 of the press body 20 and on which the mold roller 33 can roll. A platform 63 provided with a vertically movable 62
And a fluid pressure cylinder 64 capable of moving the external guide rail 62 up and down via the gantry 63, one end of which can be locked to one side of the transfer line S by one mold fastening member 38, and the other end of which is connected to the transfer line A wire rope 65 that can be locked to the other mold fastening member 38 on the other side of the wire S, and a winch 66 that selectively pulls the wire rope 65 to one side and the other side of the transport line S. Have been.

The gantry 63 is provided at a predetermined interval in the direction parallel to the transport line S on the upper surface of the pedestal 67 fixed to the floor on the side of the press body 20. And a pair of front and rear tilting columns 68.

The tilting column 68 is composed of two links 70, 71 whose longitudinal middle portions intersect via a pin 69, and one of the links 70 is pivotally connected to an end of the base 67 near the press body 20. It has a supported base and a distal end that pivotally supports one end of the external guide rail 62 on the side opposite to the press main body, and the other link 71 is provided on the base 67 opposite to the press main body and extends in the transport line width direction. It has a base movably supported by a guide member 72 and a tip end movably engaged with a guide member 73 provided on an end side of the external guide rail 62 on the press body 20 side.

The fluid pressure cylinder 64 has a cylinder pivotally supported near the press body 20 at the center of the base 67, and a distal end of the piston rod connected to the other link 71 of the tilting column 68.
Is connected to the center of a shaft 74 that connects the movable base of the shaft in a direction parallel to the transport line S. When a fluid pressure is applied to the rod-side fluid chamber, the piston rod is retracted, and the tilting column 68 rises. Therefore, when the external guide rail 62 rises and applies fluid pressure to the head-side fluid chamber,
Since the piston rod is pushed out, the tiltable column 68 is tilted, so that the external guide rail 62 is lowered.

A rope pulley 75 is disposed on the upper surface of the end portion opposite to the press body at the center in the width direction of the base 67 of each of the pedestals 63, 63, and above it.
A rope guide roller 76 is provided on the other side (the A side shown in FIG. 9) of the press body 20.

Also, one side of the transport line S (B shown in FIG. 9)
Near the press body 20 at the center of the base of the base 63 of
A winch 66 is arranged.

One end of the wire rope 65 fed from the winch 66 to one side of the transport line S (the B side in FIG. 9)
One side of the transfer line S is hung around each of the rope pulleys 75 and 75 so that the rope pulleys 75 can be locked to the bracket 39 of one of the mold fastening members 38. The other end of the wire rope 65 drawn out is wound around a rope guide roller 76, is wound around each of the rope pulleys 75 on the other side of the transport line S, and is attached to the bracket 39 of the other mold fastening member 38. It can be locked.

The wire rope 65 extending to one side (the B side in FIG. 9) of the transport line S is wound around and the other side (the A side in FIG. 9).
In the direction in which the wire rope 65 extending to the
6, the upper and lower dies 29a, 29b can be pulled out to one side of the transport line S (the B side in FIG. 9) via one die fastening member 38, and one side of the transport line S ( When the wire rope 65 extending to the side (B side in FIG. 9) is extended and the winch 66 is operated in the direction in which the wire rope 65 extending to the other side (A side in FIG. 9) is wound, the vertical movement is performed via the other mold fastening member 38. The molds 29a and 29b can be pulled out to the other side (the A side in FIG. 9) of the transport line S.

When replacing the upper mold 29a and the lower mold 29b, the upper mold 29a and the lower mold 29b are integrated by the same operation as the plate thickness reduction press shown in FIGS. The molds 29a and 29b fixed to the mold cradles 28a and 28b are opened to slightly separate the space between the upper mold cradle 28a and the lower mold cradle 28b.

Next, by applying a fluid pressure to either the rod-side fluid chamber or the head-side fluid chamber of the fluid pressure cylinder 64, the external guide rail 62 is raised and lowered.
The height position of the external guide rail 62 is
To the height of the guide rail 31 of the cradle.

Further, one end of the wire rope 65 fed out from the winch 66 to one side (the B side in FIG. 9) of the transport line S is engaged with the bracket 39 of one of the mold fastening members 38, and The other end of the wire rope 65 extended to the other side (the A side in FIG. 9) is locked to the bracket 39 of the other mold fastening member 38.

Then, one side of the transport line S (B in FIG. 9)
Side), the winch 66 is operated in the direction in which the wire rope 65 extending to the other side (A side in FIG. 9) is fed out, and the upper mold 29a and the lower mold 29b are simultaneously released from the press body 20. Fig. 9
Is transferred to the gantry 63 of the die changing mechanism 61 on the B side shown in FIG.

At this time, the other side of the transport line S (A in FIG. 9)
The upper mold 29a and the new lower mold 29b, which are vertically integrated by another mold fastening member 38, are mounted on the external guide rail 62 of the mount 63 of the mold exchange mechanism 61 on the side). , 29b and the bracket 39 of the mold fastening member 38 on the transfer line side of the old molds 29a, 29b are connected to the bracket 39 of the mold fastening member 38 on the other side of the transfer line of the old molds 29a, 29b. If the other end of the wire rope 65 is locked to the bracket 39 of the mold fastening member 38 on the side opposite to the transfer line 29b, the old molds 29a, 2
At the same time that the 9b is pulled out from the press body 20, the new dies 29a and 29b can be incorporated into the press body 20.

Thus, the space between the mold fastening members 38 of the new and old molds 29a and 29b and the wire rope 6
5 is released, the respective mold receiving tables 2 are operated by the same operation as in the first embodiment of the present invention shown in FIGS.
The molds 29a and 29b are fixed to the molds 8a and 28b.

By the above operation, each mold 29a, 29
The exchange of b ends.

As described above, in the plate thickness reduction press apparatus shown in FIG. 9, as in the case of the first embodiment of the present invention shown in FIGS. 1 to 5, the work of replacing the upper mold 29a and the lower mold 29b is performed. Can be performed quickly, and the sheet thickness reduction efficiency of the sheet thickness reduction press device can be maintained at a high level.

[0098] The thickness reduction press apparatus of the present invention is not limited to the above-described embodiment, and the die changing mechanism may be provided independently on the side of the press body.
In addition, it goes without saying that various changes can be made without departing from the spirit of the present invention.

[0099]

As described above, according to the plate thickness reduction press of the present invention, the following various excellent effects can be obtained.

(1) In any of the plate-thickness press machines according to the first to sixth aspects of the present invention, a mold fastening member capable of vertically and integrally fastening the upper mold and the lower mold is provided. Since a mold exchanging mechanism capable of moving the mold fastening member in the width direction of the transfer line is provided, it is possible to quickly perform an exchanging operation of the upper mold and the lower mold, and the The thickness reduction efficiency can be maintained at a high level.

(2) In the plate thickness reduction press device according to the second aspect of the present invention, by the operation of the actuator of the die changing mechanism, the die fastening member is integrated with the die fastening member via the moving member having the moving member roller. The respective upper and lower molds can be quickly transferred from the upper and lower mold receiving stands onto the external guide rails of the gantry.

(3) In the plate thickness reduction press according to the third, fourth and sixth aspects of the present invention,
Since one or more mold exchanging mechanisms are provided, the old mold can be removed by one mold exchanging mechanism and a new mold can be attached by another mold exchanging mechanism. Quick mold change work can be performed.

(4) In the plate thickness reduction press device according to the fifth aspect of the present invention, the upper and lower dies integrated by the die fastening member are pulled by the operation of the winch of the die changing mechanism. Can be quickly transferred from the upper and lower mold receiving stands to the external guide rails of the gantry.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a press body of a first example of an embodiment of a plate thickness reduction press device of the present invention.

FIG. 2 is an enlarged view of a mold part related to FIG. 1;

FIG. 3 is a conceptual diagram showing a mold exchanging mechanism according to a first example of the embodiment of the plate thickness reduction press device of the present invention.

4 is a view taken in the direction of arrows IV-IV in FIG. 3;

FIG. 5 is a plan layout view of a mold changing mechanism related to FIG. 3;

FIG. 6 is a conceptual diagram showing a mold exchanging mechanism of a second example of the embodiment of the plate thickness reduction press device of the present invention.

FIG. 7 is a view taken along the line VII-VII in FIG. 6;

FIG. 8 is a plan layout view of a mold changing mechanism related to FIG. 6;

FIG. 9 is a conceptual view showing a third example of a die changing mechanism of the embodiment of the plate thickness reduction press device of the present invention.

FIG. 10 is a conceptual diagram of an example of a conventional plate thickness reduction press.

FIG. 11 is a view as viewed in the direction of arrows XI-XI in FIG. 10;

[Explanation of symbols]

 2 Material to be molded 28a Upper die receiving tray 28b Lower die receiving tray 29a Upper die 29b Lower die 30 Fluid pressure cylinder (fixing tool) 31 Receiving guide rail 33 Mold roller 38 Mold fastening member 40 Mold Exchange mechanism 41 External guide rail 42 Mount 43 Roller for moving member 44 Moving member 45 Fluid pressure cylinder (actuator) 46 Connecting member 52 Turntable 54 Bogie 61 Die changing mechanism 62 External guide rail 63 Mount 65 Wire rope (tow line) 66 winch

Claims (6)

[Claims] 1. An upper mold receiving base and a lower mold receiving stand which are vertically opposed to each other across a transfer line of a material to be molded and which can be separated from each other, and a width of the transfer line provided on the upper mold receiving stand. A die having a guide rail extending substantially horizontally in the direction, and a mold roller capable of rolling along the guide rail, and being mounted on the upper mold receiver by the mold roller. A fixture for fixing the upper mold to the upper mold receiving stand, a lower mold placed on the lower mold receiving stand, and fixing for fixing the lower mold to the lower mold receiving stand. Tool, a mold fastening member facing each side of the upper mold and the lower mold and capable of being fastened to both molds, and a mold capable of moving one mold fastening member substantially horizontally in the width direction of the transport line. A plate thickness reduction press device comprising a die changing mechanism. 2. A gantry provided with an external guide rail which can face the guide rail on the side of the transfer line and on which the mold roller can roll, and can roll along the external guide rail. A movable member having a roller for the movable member and mounted on the gantry by the roller for the movable member, an actuator capable of moving the movable member in the width direction of the transport line, and one mold fastening provided on the movable member 2. A mold changing mechanism comprising a connecting member connectable to a member.
2. The thickness reduction press according to 1. 3. A mold exchanging mechanism having a plurality of mold exchanging mechanisms, wherein the mold exchanging mechanism is provided on a turntable arranged on a side of the transport line.
The plate thickness reduction press device according to claim 2, wherein each outer guide rail is mounted so as to be able to directly face the pedestal guide rail as the turntable rotates. 4. A truck having a plurality of mold exchanging mechanisms, the mold exchanging mechanism being provided on a carriage moving along a transport line arranged on the side of the transport line, and each of the external guide rails being associated with the movement of the cart. The plate thickness reduction press device according to claim 2, wherein the plate thickness reduction press device is mounted so as to be able to directly face the guide rail. 5. A gantry provided with an external guide rail which can face the receiving guide rail on the side of the transfer line and on which the mold roller can roll, and one end of which is on one side of the transfer line. A tow line that can be locked to the mold fastening member and the other end of which can be locked to the other mold fastening member at the other side of the transfer line; and the tow line is connected to one side and the other side of the transfer line. The plate thickness reduction press device according to claim 1, wherein a die changing mechanism is constituted by a winch that is alternatively pulled in. 6. The apparatus according to claim 5, further comprising two pedestals, wherein the outer guide rails of each of the pedestals are arranged on both sides of the transfer line so as to be able to face the pedestal guide rails. .