JPH03189027A - Method for reducing mold change time and panel set jig used for that method - Google Patents

Abstract

PURPOSE:To reduce die setting time by moving a bolster and preparing a lower die used in the next occasion while a panel is held by a panel setting jig to an unoperating press in working by plural presses. CONSTITUTION:While a die is removed from a slide S of the unoperating press, the panel setting jig Z is mounted and a panel P to be carried away and in by a loader and an unloader is supported temporarily. In this case, the bolster of the press is moved to preset a die used in the next occasion, the panel setting jig Z is removed to operate the press, the bolster is returned to the original position and the set die is mounted on the bolster and slide. In this way, the die setting time can be reduced.

Description

Detailed Description of the Invention A0 Purpose of the Invention (1) Industrial Application Field The present invention provides a method for shortening the time required for changing molds in a press working line, and a method that can be used directly to implement the method. Regarding panel set jigs for.

(2) Conventional technology As shown in FIGS. 7 and 8, the press processing line that performs three numerical steps of press processing consists of three press machines M+ each having a lower die and an upper die D2. , Mt , M3
The sheet feeder 01 adsorbs one of the stacked blanks and supplies it to the first press M.
Drawing processing is performed using the press machine M1. The panel P that has been drawn is supplied to the second press machine M2 by an unloader 02 and a loader 03, and after being trimmed there, it is further transferred to an unloader 04 and a loader 0.
At step 5, the panel P is supplied to a third press machine M, where flange processing is performed, and the processed panel P is loaded onto a pallet 08 by an unloader 06 and a palletizer 07.

On the other hand, when performing a two-step press process that does not require the flange process, the third press machine M is stopped as shown in FIG. Remove the upper mold D2 attached to S, and remove the lower mold D1.
Attach panel 7 gamma toto jig Z instead. The panel P that has been trimmed by the second press machine Ma is once placed on the panel setting jig 2 by the loader 05, and then transferred to the pallet 08 by the unloader 06 and the palletizer 07. .

(3) Problems to be Solved by the Invention By the way, when the processing of the panel P based on the production plan is completed, the mold D+ is used to process the next panel P.
, Dz are exchanged. Generally, a mold changer is used to replace the molds D+ and Dz, and a mold changer C corresponding to the first press machine M1 and the second press machine M2 is used.
+, Cz are provided. However, a mold changer cannot be installed in the third press machine M because the movement of its bolster B is sideways (see Figure 8).
. In such a case, when exchanging molds to perform three-step machining following two-step machining, the first and second press machines M, , M are replaced by the mold exchange machine CI.

Molds D+ and Dz can be quickly replaced by C2, but the third press machine M8 requires a long time to carry in and mount molds D+ and D after removing the panel set jig Z. As a whole, the first and second press machines M+
, Mz had the disadvantage that the effect of introducing the mold exchanger ClC2 could not be fully demonstrated.

The present invention has been made in view of the above-mentioned circumstances, and provides a method for shortening mold replacement time in a press processing line with a press machine that is not in operation, and a panel set for direct use in carrying out the method. The purpose is to provide jigs.

B0 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention provides a process in which a plurality of press machines are used continuously, and a method for solving the problems in the plurality of press machines. A panel set that can temporarily support panels that are carried in by a loader and an unloader on the upper mold mounting slide of the press machine that is not in operation. The first step is to provide a removable jig, move the lower die mounting bolster of the press machine that is not in operation while the panel setting jig is in use, and set the next die to be used on this bolster in advance. The characteristics of

Further, the present invention provides a panel that is mounted on the slide for mounting the upper mold of the press machine while the lower mold mounting bolster of the press machine that is not in operation is moved and a mold to be used next time is set on the bolster in advance. The panel set jig temporarily supports a pair of gate-shaped frames, a panel support that is removably installed at the lower ends of both frames to support the panel, and a panel set jig that is perpendicular to the lower surface of the slide of the press machine. a clamp mechanism that removably fixes the upper end of the frame to a large number of T-grooves formed in one direction, and the clamp mechanism includes a support rod that fits inside the T-grooves in one direction, and A second feature is that the slider includes a positioning plate that engages with the T-groove, and a clamp rod that is detachably pressed against the lower surface of the slide.

(2) Effect According to the first feature of the present invention having the above-described configuration, the panel setting jig is mounted on the upper mold mounting slide of a press machine that is not in operation with the mold removed. , panels that are loaded and unloaded by a loader and an unloader are temporarily supported by this panel setting jig. At this time, the lower mold mounting bolster of the press machine is moved, and the mold to be used next is set in advance on its upper part. When the press machine is operated, the panel setting jig is removed from the slide, the bolster is returned to its original position, and the mold set above is attached to the bolster and the slide.

According to a second feature of the present invention, when the mold of a press machine that is not in operation is removed, the support rod of the clamp mechanism provided on the frame is inserted into a predetermined T groove formed in the slide for mounting the upper mold. At the same time, a clamp rod is pressed against the lower surface of the slide to fix it. A panel support is attached to the frame attached to the slide in this way, and the panel is supported on top of the panel support.

(3) Examples Hereinafter, the present invention will be described in detail based on the drawings.

Figures 1 to 6 show one embodiment of the present invention.
The figure is an overall side view of the panel set jig, and the second figure is the first one.
Figure 3 is an overall perspective view of the clamp mechanism, Figure 4 is a sectional view taken along the line IV-IV in Figure 2, and Figure 5 is a view taken along the line IV-IV in Figure 2.
6 is a cross-sectional view taken along the line V--VI in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line V--VI in FIG.

As shown in Figures 1 and 2, the panel set jig Z
is removably suspended from the upper mold mounting slide S of the press machine M3 which is not in operation, and is removable between the pair of front and rear gate-shaped frames 1.1 and the lower ends of the frames 1,1. It is comprised of a pair of panel supports 2, 2 that are freely installed, and a clamp mechanism 3 that removably fixes the left and right upper ends of each frame 1.1 to the slide S. A large number of TAGs, , G, for fixing the clamp mechanism 3 of the frames 1, 1 are formed on the lower surface of the slide S. The T groove G extending in the front-rear direction of the slide S and the T groove 02 extending in the left-right direction have the same cross-sectional shape, and each TI
The width of the opening on the bottom surface of slide S of G, ,G is Wl
1, and the width inside the slide S is formed to be W2, which is larger than W1 (see FIG. 5).

The pair of frames 1.1 have the same structure, each consisting of two vertical members 19, one horizontal member 12 interconnecting their lower ends, and one reinforcing member 1 interconnecting the intermediate portions. ．． It consists of Two rod-shaped panel supports installed between the left and right lower ends of both frames 1.1.
2 has its both ends overlapped with the horizontal member 1□ of each frame 1, 1, and is removably connected from below with a thumbscrew 4. Positioning members 5, 6 are provided in the middle of both panel supports 2.2 for supporting the panel P by coming into contact with the outer periphery of the panel P.

As shown in FIG. 3, the clamping mechanism 3 is attached to each frame 1.
1 vertical member 1. A plate-shaped positioning plate 8 is fixed to the upper end of the positioning plate 8 via a bracket 7, and a bar-shaped support rod 10 is fixed to the opposite side of the positioning plate 8 via a bracket 9. One end of a linear link 12 is rotatably supported by a pin 13 at the lower end of a bracket 11 fixed to the side surface of the vertical member 11 on the same side as the support rod 10, and the upper end thereof has a roughly rectangular shape. One end of a rotating member 14 having a shape is pivotally supported by a pin 15. The other end of the link 12 and the bent portion of the rotating member 14 are pivoted to the tip of a lever 18 by pins 16 and 17, respectively. A support rod 19 is screwed into the other end of the rotating member 14 so that its protrusion length can be adjusted, and a clamp rod 20 is integrally fixed to the tip thereof.

Vertical member 1 of frame 1,1. The thickness of the upper end portion is set equal to W so that it can fit into the opening of the T-slot G1 in the front-rear direction, and the thickness of the positioning plate 8 is set equal to the thickness of the positioning plate 8 so that it can fit into the opening of the T-slot G2 in the left-right direction. The same <W+
is set equal to . Further, the length of the support rod 10 is the same as the T-groove G.

The clamp rod 2 is set to a length intermediate between the width WI of the opening and the width W2 of the inside so that it can be engaged with the inside of the clamp rod 2.
The length of 0 is set to be sufficiently larger than the WI.

Next, the operation of the embodiment of the present invention having the above-described configuration will be explained based on FIGS. 4 to 6.

A two-step press process consisting of drawing and trimming is being carried out, and the third press machine M is not in operation!
The mold has been removed, and a panel setting jig Z is attached to the slide S.

At this time, the bolster B of the third press M is in a state of being moved laterally (see FIG. 8).

To install the panel set jig Z, first tilt one frame 1 so that the support rod 10 side is higher and the positioning plate 8 side is lower, and then insert the support rod 10 into the T-groove G in the front-rear direction and the T-groove G in the left-right direction. Insert from below into the intersection of Gz. Next, the frame 1 is moved in the front-rear direction and its support rod 1O is moved along the T-groove G in the front-rear direction to a predetermined position, and then the frame 1 is rotated around the support rod 10 into a vertical position. . As a result, the vertical member 11
The upper end thereof engages with the opening of the T-slot G in the front-rear direction, and the positioning plate 8 engages with the T-slot 02 in the left-right direction. When the lever 18 is pulled down from the chain line position to the solid line position in FIG. 4 from this state, the rotating member 14 rotates from the chain line position to the solid line position, and its clamp rod 20 abuts against the lower surface of the slide S. At this time, the link 12 connected to the lever 18 swings toward the bracket 11 beyond the dead center, so the rotating member 14 is stably held at the position indicated by the solid line. When the clamp rod 20 comes into contact with the lower surface of the slide S in this way, the vertical member II of the frame 1 is pulled down by the reaction force, and the stepped part of the T groove G in the front and rear direction is connected to the support rod 10 and the clamp rod. 20, it is pinched from above and below.

When one frame 1 is fixed to a predetermined position on the slide S as described above, the other frame 1 is also fixed to the slide S by the same procedure, and then the two frames 1 are fixed between the lower ends of both frames 1, 1. Installation of the panel set jig 2 is completed by constructing the panel support 2.2 and fixing it with thumb screws 4. The panel P that has been trimmed by the second press machine M is temporarily placed between the positioning members 5 and 6 provided on the panel support 2 of the panel setting jig Z, and then palletized. Discharged on 1-08.

When the two-step press work is being performed as described above, the bolster B of the third press machine M3 is pulled out to the side, and the mold to be used for the next three-step press work is placed above it. ,D, are set in advance. When the second press process is completed, the panel setting jig Z is removed from the slide S in the reverse order as described above, the bolster B is returned to its original position, the upper die is attached to the slide S, and the third Completed the replacement of the mold of press machine M. In this way, by setting the molds D2 to be used next time on the bolster B in advance, it is possible to avoid being delayed by the first and second press machines M, Mt, which have mold changers Cr and Ct. It is possible to complete the replacement of molds, D, without any problems.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various small design changes can be made without departing from the scope of the invention described in the claims. Is possible.

For example, in the embodiment, each frame 1.1 includes a pair of left and right vertical members 1.1. ．． 1. For example, the above-mentioned clamp mechanism 3 is attached only to the right vertical member 11 of one frame 1 and the left vertical member 11 of the other frame 1, and the clamp mechanism 3 is attached to the other two vertical members. The member includes a support rod 10
Clamp rod 2 with only positioning plate 8 installed.
It is also possible to omit 0.

C9 Effects of the Invention As described above, according to the method for shortening the mold change time of the present invention, the panel setting jig that can temporarily support the panels being carried in by the loader and unloader can be used in a press machine that is not in operation. The slide for attaching the upper die is detachably provided, and the bolster for attaching the lower die of the press machine is moved while this panel setting jig is in use, and the lower die to be used next time is set in advance on this bolster to prepare it. Therefore, when the press machine is operated, the installation of the mold can be completed in a short time.

In addition, the panel set jig of the present invention includes a panel support capable of supporting a panel, a frame that holds this panel support at the lower end, and a clamp that detachably attaches the upper end of this frame to the slide of a press machine that is not in operation. This panel set consists of a mechanism, and the clamp mechanism is provided with a support port rad and a positioning plate that can be engaged with the T-groove of the slide, and a clamp rod that is removably pressed against the lower surface of the slide. A jig can be attached to and removed from a predetermined position on a slide in a short time, and there is no possibility that the panel setting jig will be misaligned.

[Brief explanation of drawings]

Figures 1 to 6 show one embodiment of the present invention.
The figure is an overall side view of the panel cent jig, and the second figure is the first one.
Figure 3 is an overall perspective view of the clamp mechanism, Figure 4 is a sectional view taken along the line IV-IV in Figure 2, and Figure 5 is a view taken along the line IV-IV in Figure 2.
6 is a sectional view taken along the line Vl-Vl of FIG. 4, FIG. 7 is a side view showing a conventional three-step press line, FIG. The figure is a plan view showing a conventional two-step press line. 05...tl-da, 06...unloader, 1...
Frame, 2... Panel support, 3... Clamp mechanism, 8... Positioning plate, 10... Support rod, 20... Clamp rod, B... Bolster, Dl, Dz... Gold Type, G+, G
z...T groove, M1, Mz, Ms...press machine, P
...Panel, S...Slide patent

Claims (2)

[Claims] (1) In a process of continuously using a plurality of press machines (M_1, M_2, M_3), the plurality of press machines (M_
1, M_2, M_3) is a press machine (M_3) that is not operating.
3) is a method for shortening mold replacement time when there is a loader (05) and an unloader (06
) is provided with a removable panel setting jig (Z) that can temporarily support the panels (P) carried in and taken out by the press machine (M_3) that is not operated while this panel setting jig (Z) is in use. Move the lower mold mounting bolster (B), and attach the molds (D_1, D
_2) A method for shortening mold replacement time, characterized by setting _2) in advance. (2) While moving the lower mold mounting bolster (B) of the press machine (M_3) that is not in operation and presetting the molds (D_1, D_2) to be used next time on the bolster (B),
A panel setting jig that is attached to the upper mold mounting slide (S) of the press machine (M_3) to temporarily support the panel (P), comprising a pair of gate-shaped frames (1, 1), and both sides. Frame (1, 1
) and a panel support (2, 2) that is removably installed on the lower end of the panel (P) and supports the panel (P), and the press machine (M_3).
) The frame (1
, 1) A clamp mechanism (3) that removably fixes the upper end.
The clamping mechanism (3) is arranged so that the clamping mechanism (3)
a support rod (10) that fits inside the groove (G_1);
A panel comprising: a positioning plate (8) that engages with the T-groove (G_2) in the other direction; and a clamp rod (20) that is removably pressed against the lower surface of the slide (S). Set jig.