JPS5851774B2 - Tripress equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The invention relates to a tri-press machine I having one press machine and one or more profile modification lines.

The try press machine is used to make a press mold, then test it and repair any defective parts.

By the way, with conventional tri-press equipment, the mold is corrected while it is fixed to the press equipment, so during the time-consuming correction work, the press slide only serves as a crane to separate and hold the upper mold from the lower mold. During this period, the press machine was unable to perform its original function, and the operating rate of the press machine was extremely low.

In addition, it is difficult to modify a lower mold equipped with a blank holder, which requires inefficient work such as separating the blank holder and taking it elsewhere to modify the lower mold and blank holder. I was forced to work.

The present invention has been made in order to eliminate the drawbacks of the conventional ones described above, and includes an upper die correction section and a lower die correction section separate from the press equipment, and the mold material after the tri-press is corrected in the respective sections. In addition, appropriate rails were installed to allow the trial press to be performed by bringing the dry press to the Heihi press machine, and a self-propelled moving bolster for transporting the form material was used to move the form material for correction of the dry press and lower die. The process is carried out while the mold remains on the bolster, and in the upper mold correction section, a dice setter device is installed to lift the upper mold.
The lower mold is now sent to the next lower mold correction section.

Therefore, in the lower die correction section, a die pin lifter device is buried in the floor, and its jacking rod is configured to be able to protrude above the floor, so that the jacking rod's protrusion can push up the lower die blank holder on the moving bolster and hold it in the raised position. The present invention provides a tri-press device with high operating rate and work efficiency.

Hereinafter, the present invention will be specifically described based on an embodiment shown in the drawings.
and will be explained in detail.

In FIG. 1, a main rail 6 is laid including the inside of the gate of the press device 1, and a second rule 7a and a second rail 7b are laid including the upper die correction section 2 and the lower die correction section 3.
, and the third rail 7c are configured so that they can be connected to each other by a turntable 8, which is a rail laid in the - direction.

Of course, these rails are a plurality of set rails.

Hereinafter, the paired mold correction sections of the upper and lower molds and their rails will be collectively referred to as the mold correction line.

Thus, bogie-shaped moving bolsters 4 are arranged on the main rail 6 and each correction line, respectively.

As shown in FIG. 2, the press device 1 is equipped with a press slide 11 that moves up and down by the power of oil pressure, compressed air, etc. between frames 10 installed at the four corners, and a floor 12 within the gate formed by the frame. A main rail 6 is installed on the base rail 6.

At the stop position M of the moving bolster 4 in the press device (see FIG. 2), the rail supporting the wheels of the bolster is configured to be lowered by a cylinder (not shown), and as the rail is lowered, the moving bolster 4 is lowered. It is supported in contact with the upper surface of the floor 12.

A clamper 13A is provided on the lower surface of the floor 12, and its shaft is projected upward by the biasing force of a solenoid energized by an operator's command, thereby restraining the moving bolster 4 from moving in the horizontal direction.

Reference numeral 5 denotes a mold material, the lower mold 51 of which is fixed to a lower adapter plate 52 with bolts, and the adapter plate is placed and fixed on the base of the moving bolster 4.

The upper mold 53 is placed facing the lower mold 51, and an upper adapter plate 54 is fixed to the back surface thereof with bolts.

A plurality of autoclans/n4A shown in FIG. 5 are fixedly disposed on the lower end of the press slide 11, and the clamp rods 15A having a hook portion at the tip can be moved in the forward direction a, by the operation of a button switch or the like by an operator. The rod 15 can be rotated in the vertical force direction and in the outward direction as shown in b.
When A is positioned in the vertical direction, the auto clamper 14A holds the upper adapter plate 54 by engaging with the notch 55 (see FIG. 6) provided on the side surface of the upper adapter plate, and as the press slide 11 rises, the auto clamper 14A holds the upper adapter plate 54. can be lifted.

Note that the lower adapter plate 52 is also provided with a notch, which is used for fishing in other cases.

Next, the mold correction line will be explained.

Since each of the correction lines has substantially the same shape, only the first correction line having the rule 7a will be explained here, and the explanation of the other correction lines will be omitted.

The upper mold correction section 2 is provided with a die setter device 20 shown in FIGS. 3 and 4.

This die setter device 20 is provided with a pair of opposing beams 24 that are movable up and down by the rotation of a threaded rod 22 along pillars 21 erected at the four corners. A plate 26 is provided that can be turned upside down.

Note that this plate 26 can be stopped at any angle (at this point) and maintained in its tilted state.

Plate 26 is shown full width in FIG.
In the figure, it is hidden behind the beam 24, and its axis 25
Only a portion of the bracket at the bottom of the plate that supports the shaft and its shaft in an eccentric position is shown.

Thus, the threaded rod 22 is rotated by a motor 23 on a beam plate suspended above the column 21, and the plate 22 is
6 is rotated by a motor 27 provided on the beam 24 via a worm gear device 28 .

A plurality of auto clampers 14B (see also FIG. 5) of the same type as those provided in the press apparatus 1 are provided at the side ends of the plate 26, and a stopper 29 is provided to protrude downward from one side of the lower surface.

In addition, a stopper 1 is provided on the bottom surface of the floor of the die setter device 20.
3b is provided, and the movement of the moving bolster 4 can be automatically restrained by projecting the shaft rod of the stopper above the floor.

Note that the clamp rod 15B of the auto clamper 14B is shown in FIG.

Next, a stopper 31 is provided at the end of the second rule 7a in the lower mold correction section 3, and a limit switch (not shown) stops the moving bolster 4 at a normal position and restricts its movement.

The die pin lifter device 32 is buried in the floor as shown in FIGS. 7 and 8 in detail, and its jack rod 33
Cross beam 3 connecting two pairs of jack rods
4 is normally flush with the floor, but is configured to be able to protrude above the floor when driven by a motor 35.

Therefore, the above-mentioned pair of jack rod and cross beam are further provided as a pair of left and right sets in parallel,
In both cases, the drive of the motor 35 is transmitted to the jacking device 37 via the bevel gear 36.

As shown in FIG. 8, the moving bolster 4 on which the blank holder 56 is placed on the lower die 51 is placed on the platform 41.
The small hole 4 allows the leg pin 57 of the blank holder 56 to pass through the hole 4.
2, a plurality of L-shaped bangers 43 are provided downward on the lower surface of the base 41, and a pin plate 44 is suspended so as to be vertically movable.

The leg pins 57 of the blank holder loosely pass through the holes provided in the lower die 51, the lower adapter plate 52, and the holes 42 in the platform, and their tips abut against the pin plate 44.

The blank holder 56 is configured to rise when the jack rod 33 rises and pushes up the pin plate.

In order to cope with the change in the position of the micro-holes 42 due to the mold material, hollow portions may be provided in the base, and a lid-like fitting plate having micro-holes at various positions may be used.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but may be partially replaced as long as it is based on well-known technology that satisfies the required functions.

For example, the beam material 24 in the die setter device 20 and the jack rod 33 in the die pin lifter device 32 may be lifted and lowered by other suitable lifting and lowering mechanisms that use hydraulic pressure, pneumatics, etc., and the auto clamper 14A.

14B notch 55 as an electromagnetic adsorption mechanism, stoppers 13B and 31 as wheel clamper type provided on a rail, die setter device 20 that handles only special shapes that do not require reversal or inclination of the upper mold, plate 26 is eliminated and the upper die lifting mechanism is provided directly on the beam material 24, and the number of correction lines, turntables, and moving bolsters can be increased or decreased as required, and die pin lifter devices 32 are provided in all of the lower die correction sections 3. It is within the scope of the present invention to install it only in some of the modified sections without having to do so in order to reduce equipment costs.

Since the device of this embodiment is configured as described above, even if the press device 1 is located in a place where two or three sides cannot be used due to a partition wall, a support in a factory, other installed equipment, a passage, etc., the press device 1 can be installation is possible.

Although the loading and unloading of profile materials to the moving bolster 4 is generally carried out by a factory crane, it is most preferable to do so, for example, on the main rail 6 in front of the press apparatus 1 in terms of vehicle arrangement of the bolster 4.

However, the loading and unloading location should be determined in conjunction with the existing or new crane suspension rails.
The reality is that it is quite difficult to achieve what you want.

In this respect, in this device, the turntable itself and the rails of each correction line around it have almost the same conditions as the reference rail 6, so there is a great degree of freedom in selecting the loading and unloading position.

Now, after placing the profile 5 on the moving bolster 4 and fixing its lower adapter plate 52 to the base, the bolster 4 is allowed to move on its own to advance to the press stop position of the press device 1 (not shown). The limit switch operates to automatically stop the bolster 4, and the clamper 13A operates to restrain horizontal movement of the bolster 4.

When the press slide 11 of the press device 1 is operated downward and the lower surface of the press slide 11 comes into contact with the upper adapter plate 54, a limit switch (not shown) is activated to stop the press slide 11 from descending.

After driving the auto clamper 14A to engage the clamp rod 15A with the notch 55 of the upper adapter plate 54, the press slide 11 is operated upward and stopped at an appropriate position.

A worker places and sets a workpiece, for example, a sheet metal, on the mold surface of the lower mold 51 on which the upper mold 53 is lifted.

Next, the press device is operated to perform a trial press (try press).

The press slide 11 is placed in the raised position again, and the operator inspects the workpiece. If a defect in the workpiece due to a defect in the mold material 5 is found, the worker sends the mold material to a repair line.

Immediately, the worker removes the workpiece if necessary, returns the press slide 11 to the lowered position, and moves the auto clamper 14 to the lower position.
Remove A and release the upper mold 53 onto the lower mold 51.

After releasing the clamper 13A, the bolster 4 is driven by itself, passes through the main rail 6 and the turntable 8, enters the rail of a predetermined correction line, and is stopped at a predetermined position in the die setter device 20 of the upper mold correction section 2 by the action of a limit switch (not shown). let

At the same time, the stopper 13B operates to restrict movement of the bolster 4.

In the above, there are a total of 4 rails on each line as shown in Figure 1.
If the bolsters 4 are overcrowded, as in the case where the bolsters 4 are arranged, it is possible that an empty bolster 4 already exists on the correction line that is about to be corrected. The bolster of the load may be evacuated in advance onto a rail near the turntable 8 on another correction line, and the possibility of such a bolster replacement operation can be cited as one of the benefits of the turntable.

The moving bolster 4 is placed in a predetermined position of the die setter device 20.
Once set, the worker drives the motor 23 to lower the beam 24 through the rotation of the threaded rod 22.

When the plate 26 comes into contact with the upper adapter plate 54 of the profile, a limit switch (not shown) is activated and the beam 24
The descent will stop automatically.

After driving the auto clamper 14B to engage the clamp rod 15B with the notch 55 of the upper adapter plate 54, the beam 24 is raised to lift the upper die 53, and the motor 27 is driven to move the plate 26. Rotate counterclockwise to stop the reversal.

During this plate reversal operation, the upper adapter plate 54
However, the auto clamper 14B does not have enough strength to support the weight of the upper adapter plate 54 with the upper mold 53, so the stopper 29
Prevent damage.

In this way, the beam material 24 is lowered and held in an appropriate position, and the upper mold 53 with the mold surface facing upward can be corrected, making the correction much easier than in the case of the conventional tri-press (mold surface facing downward). Easy to work with.

Note that if an upward inclination of the mold surface is preferred depending on the mold or the operator's preference, the plate 26 can be tilted and stopped at a desired angle.

After releasing the stopper 13B, the bolster 4 carrying the lower mold 51 is sent to the next lower mold correction section 3 by itself.

The moving bolster 4, which has moved by itself to the lower mold correction section 3, comes into contact with the stopper 31 and is automatically stopped by a limit switch (not shown).

If necessary, the workpiece is removed and the lower die 51 remains placed on the bolster 4 to make corrections.

The removed workpiece is placed in the vicinity of the modification area to provide a reference for modification at any time, if necessary.

Now, if the lower mold 51 on the bolster is of a double-acting type (cushion drawing type) and the blank holder 56 is attached to the lower mold, the worker must, for example, press a button switch before repairing. Die pin lifter device 32
The motor 35 is driven to raise the jack rod 33.

The jack rod 33 pushes up the pin plate 44 of the bolster 4 together with the cross beam 34, and raises the blank holder 56 via the leg pins 57 as shown by the dotted line in FIG.
hold that position.

Holding the blank holder 56 in the raised position forms the edge of one pedestal when using a repair tool for the lower mold 51, so it is possible to avoid inadvertently damaging the mold surface, and the blank holder 56 Since the distance from the mold surface has been increased in the correction of the surface, there is no need for removal and correction unlike in the conventional case, and the correction work can be carried out in the same state.

Furthermore, the cleaning work of the shavings and the like after these corrections is also easy and reliable.

When the corrected lower mold and upper mold are sent to the press device 1 by the moving bolster 4 and the try press is performed again, the procedure described above can be reversed.

As described above, the present invention provides a tri-press machine having an upper die correction section and a lower die correction section connected by a rail and a moving bolster for placing and fixing a mold material, in which the floor of the lower die correction section is provided. A die pin lifter device is embedded in the die pin lifter device, and the lower mold blank holder, which is placed and fixed on the moving bolster, can be held in a raised position relative to the lower mold by the protruding action of the jack rod above the floor, so that the lower mold and its The correction work with the blank holder is made easy and safe, and the work is done smoothly, reliably, safely, and with high efficiency by rationalizing the work compartment arrangement and procedures of this Tri-Press device, and by applying work automation and semi-automation. and work progress.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view of the device, Fig. 2 is a front view of the press device, and Fig. 3 is a die setter along the line ■-■ in Fig. 1. Side view of the device, No. 4
The figures are a front view of the die setter device taken along the line IV-IV in Fig. 1, Fig. 5 is an enlarged side view of the auto clamper, Fig. 6 is a back view of the upper adapter plate, and Fig. 7 is a part of the die pin lifter device. The cutaway plan view and FIG. 8 are a combination of the front view of the die pin lifter device along the line ■-■ in FIG. 7 and the corresponding cross-sectional view of the moving bolster on which the lower die with blank holder is placed. It is. 1 nibless device, 2: upper mold correction section, 3: lower mold correction section, 4: moving bolster, 5: mold material, 6 s 7 a
, 7 b , 7 c: rail, 20: die setter device, 32: die pin lifter device, 33: jack rod, 44: pin plate, 51: lower mold, 52: lower adapter plate, 53: upper mold, 56: blank holder, 57
: Leg pin.

Claims (1)

[Claims] 1. It has at least a series of correction sections consisting of an upper mold correction section equipped with a die setter device for lifting the upper mold with respect to the press device, and a mold correction section, and these are connected by a rail of a self-propelled moving bolster vehicle. In things,
The die pin lifter device buried in the floor of the lower mold correction section is configured to be able to project a jack rod onto the floor, and the moving bolster suspends a pin plate movably up and down below the platform. The lower mold of the cushion drawing mold to be fixed has a blank holder on the mold surface side,
The leg pins of the blank holder are brought into contact with the lower die, the lower adapter plate and the base are placed above the free passage, and when the moving bolster is in the lower die correction section, the jack rod protrudes from the pin plate. and a tri-press device, characterized in that the blank holder is configured to be able to be held in a raised position via leg pins.