JPH0753783Y2 - Press machine - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The press machine according to the present invention is capable of punching holes in a sash made by integrally extruding aluminum,
Alternatively, it is used when the end portion is cut into a desired shape.

(Prior Art and Prior Invention) A window frame, a window frame, and the like provided in an opening of a building or a general house are configured by combining sash materials made by integrally extruding aluminum.

As described above, when the sash material is combined to form a window frame or the like, it is necessary to make a hole in the sash material cut into a predetermined length or to cut the end portion of the sash material into a desired shape.

Therefore, conventionally, the processed portion of the sash material is inserted into a press machine equipped with a die having a desired shape, and the processed portion is cut by the die to form a hole in the processed portion. Or had a desired shape.

However, in recent years, as the number of types of products made by combining sash materials such as window frames has increased, and so-called high-mix low-volume production has been achieved, the work of exchanging dies mounted on a press machine is more efficient when manufacturing the above products. Has come to have a great influence on.

That is, when making a different product from the previous one, remove the mold set in the press machine until then, and replace the new mold stored in the storage shelf until then in the press machine. Although work has to be performed, since the mold for processing the sash material is heavy, such replacement work is troublesome and time-consuming.

59-39028, 59-39029, 59-39030
The publication discloses a mold supply device or a mold delivery device for facilitating such a mold replacement work.

By using these conventionally known devices,
The time required for mold replacement can be shortened (if the above device is not used, it takes about 300 seconds, but it will be reduced to about 45 seconds). However, if the types of products increase, the replacement time will be better. It is desired to be shortened.

For this reason, the inventor of the present invention first devised a press processing machine in which the die exchange time was reduced to zero by making the mold storage rack function as a press processing machine (actual application No. 1-142758). ).

The press working machine according to this prior invention is configured as shown in FIGS.

Reference numerals 1 and 1 are left and right 1 provided at intervals in the width direction (left and right directions in FIGS. 3 to 5 and front and back directions in FIGS. 6 to 7).
In the pair of columns, each of the columns 1, 1 is in the front-back direction (fourth
A pair of steel materials 2 and 2 provided in parallel in the front-back direction of the figure, the vertical direction of FIG. 5, the horizontal direction of FIGS. Combine,
It is composed by combining. Further, by fixing the substrates 3 and 3 to the lower end portions of the columns 1 and 1, and bolting the substrates 3 and 3 to the floor surface of the factory, the columns 1 and 1 are fixed to the floor surface and the like. It stands vertically.

Between the pair of columns 1 and 1 as described above, three sets of mold supporting portions 4a, 4b and 4c are fixed so as to be bridged in three stages in the vertical direction.

Each of the mold supporting portions 4a, 4b, 4c is provided at the same height position with an interval in the front-rear direction, and both ends of each of them are coupled to and supported by the inner side surfaces of the pair of columns 1 and 1. The supporting beams 5 and 5 of FIG.
Molds 6 and 6 (FIG. 4) for processing the sash material are placed on 4a, 4b and 4c so as to be bridged over the front and rear support beams 5 and 5, respectively. In addition, between the upper end portions of the pair of columns 1 and 1, the support beams 5 forming the respective mold support portions 4a, 4b, 4c,
By providing coupling beams 7 and 7 similar to 5, the frame 8 including a pair of columns 1 and 3 and three sets of mold supporting portions 4a, 4b and 4c is improved in rigidity.

In addition, a pair of lifting members 11, 11 are supported on each of the columns 1, 1 so as to freely move up and down along the columns 1, 1, and the height between the lifting members 11, 11 is changed, Three ram frames 15a, 15b, 15c are bridged. The distance between these three ram frames 15a, 15b, 15c is set to be equal to the distance between the three sets of mold supporting portions 4a, 4b, 4c, and when the pair of lifting members 11, 11 is raised most. Between the upper ram frame 15a between the coupling beams 7, the middle ram frame 15b between the upper mold supports 4a, and the lower ram frame 15c between the middle mold supports 4b, Each is located.

Further, the lower ends of the pair of lifting members 11 and 11 are connected to each other by a connecting beam.
16 are connected to each other, and a hydraulic cylinder 17 is provided between the upper surface of the intermediate portion of the connecting beam 16 and the lower surface of the intermediate portion of the lower die support portion 4c, and between the pair of lifting members 11, 11. It is used as an elevating means for elevating and lowering the three ram frames 15a, 15b, 15c which are hung over the ram.

That is, the mounting substrate 18 is fixed to the middle portion of the supporting beams 5 and 5 that form the lower die supporting portion 4c so as to extend over the supporting beams 5 and 5 and to the lower surface of the mounting substrate 18. The cylinder body 19 of the hydraulic cylinder 17 is fixed, and the tip of the output rod 20 of the hydraulic cylinder 17 is fixed to the upper surface of the intermediate portion of the connecting beam 16.

Furthermore, the three sets of mold supporting portions 4a, 4b, which are configured as described above,
A plurality of dies 6, 6 are placed on the upper surface of 4c, and the upper surfaces of the dies 6, 6 placed on the upper die supporting portion 4a are placed on the lower surface of the upper ram frame 15a. Middle mold support 4
The upper side of the dies 6, 6 placed on b is the middle ram frame 1
On the lower surface of 5b, the mold 6 placed on the lower mold support 4c,
The upper surface of 6 is opposed to the lower surface of the lower ram frame 15c.

With the press machine of the previous invention configured as described above,
When making a hole in the sash material or cutting the end portion of this sash material into a desired shape, the processed portion of this sash material is
It is inserted into a desired processed portion of the die 6. When performing this insertion work, connect the output rod 20 of the hydraulic cylinder 17 to the cylinder body 19
The ram frames 15a, 15b, 15c are raised by pulling them inside.

When the processed portion of the sash material is inserted into the desired processed portion of the die 6, the output beam 20 of the hydraulic cylinder 17 is pushed out to push down the connecting beams 16 and the lower ends of the connecting beams 16 are connected to the connecting beams. The ram frames 15a, 15b, 15c are lowered through the elevating members 11, 11 fixed to both ends of 16, and the upper surface of the die 6 is pushed to insert the sash into the processing portion of the die 6. The work part of the material is pressed.

The press machine of the previous invention is provided with mold supporting parts 4a, 4b, 4c in three steps, for example, in the upper and lower stages.
The dies 6 and 6 placed on a, 4b, and 4c are pushed by the ram frames 15a, 15b, and 15c in their original positions, so that the dies can be used even when changing the processing state. 6,
It is possible to perform another press work simply by changing the mold 6 into which the sash material is inserted, without performing the replacement work of 6.
It is possible to reduce the setup time to almost zero even when performing high-mix low-volume production.

(Problems to be Solved by the Invention) However, the press working machine according to the previous invention configured as described above still has the following problems to be solved.

That is, the dies 6, 6 placed on the respective die supporting portions 4a, 4b, 4c
Although the frequency of exchanging is much less than that of the conventional press machine, it is not that it is not exchanged at all, but for repairing the mold 6 or to start machining of a completely new sash material. May be replaced.

Therefore, it is necessary that each of the mold supporting portions 4a, 4b, 4c has a shape such that the molds 6, 6 placed on the respective upper surfaces can be replaced, but the molds 6, 6 are heavy. In addition, the mold supporting portions 4a, 4b, 4c have heights that are slightly higher than the heights of the molds 6, 6, so that the mold supporting portions 4a, 4b,
The upper surface of 4c must be flat so that the molds 6, 6 can be replaced while sliding.

On the other hand, at the time of operating the press machine, each die support part 4a, 4
Since vibrations are repeatedly applied to b and 4c, it is necessary to prevent the molds 6 and 6 placed on the respective mold supporting portions 4a, 4b and 4c from moving due to the vibration.

The press machine of the present invention was devised in view of the above circumstances.

(Means for Solving the Problems) A press machine according to the present invention is provided with a frame having a pair of left and right columns provided in an upright state, spaced apart from each other in the width direction, and spaced from each other in the front-rear direction. A plurality of front and rear support beams, which are provided at the same height position and each end of which is supported by the pair of columns, are set as one set, and the height is changed between the pair of columns. A pair of mold supporting parts and the above 1
A pair of left and right elevating members supported by a pair of columns so as to be vertically movable along the columns, and a plurality of ram frames hung between the pair of elevating members at different heights. And an elevating means for elevating and lowering the plurality of ram frames, and a plurality of ram frames mounted on the plurality of sets of die supporting portions and having their upper surfaces facing any of the plurality of ram frames. Mold and two pieces 1 that compose each of the mold supporting portions
Of the pair of support beams, it is pivotally supported by a fixed stopper fixed to the rear end of the upper surface of the rear support beam, and a hinge provided on the front edge of the front support beam, and the upper part is centered around this hinge. A movable stopper that is located at the front end of the upper surface of the front support beam when rotating, and a movable stopper that is located below the upper surface of the front support beam when rotating downward, and this movable stopper is located above the hinge. The through hole that penetrates up and down when turning to, the hole formed in the part of the front support beam that matches the through hole, and can be inserted inside the hole and the through hole. Then, it is composed of a locking pin for fixing the movable stopper to the upper surface of the support beam at the time of insertion.

(Operation) With the press machine of the present invention configured as described above,
The operation when punching a hole in a work piece such as a sash material or cutting the end portion of this work piece into a desired shape is the same as that of the press machine according to the above-mentioned invention. In doing so, the processed portion of the workpiece is inserted into the processed portion of the desired die. When doing this insertion work,
Each ram frame is raised by the lifting means.

After inserting the processed part of the work into the processed part of the desired mold, each ram frame is lowered by the elevating means and the upper surface of the mold is pushed to be inserted into the processed part of the mold. Further, the work portion of the work piece is pressed.

Similar to the press machine according to the previous invention, the press machine of the present invention is provided with die support parts in a plurality of upper and lower stages, and the press die placed on each die support part is Since the upper surface is pushed by the ram frame in the same position, even when changing the processing state, you do not have to change the mold, just change the mold to insert the workpiece, It is possible to perform another press working, and even when performing high-mix low-volume production, the setup time can be reduced to almost zero.

Further, in the case of the press working machine of the present invention, since the front and rear edges of the lower surface of the mold placed on each mold supporting portion are respectively restrained by the fixed stopper and the movable stopper, the press working machine is operated. Despite the vibration, the molds placed on the upper surfaces of the mold support parts do not move.

When exchanging the mold, the locking pin is pulled out and the movable stopper is rotated downward around the hinge. As a result, the movable stopper does not project from the upper surface of the mold supporting portion, so that the mold can be easily replaced while sliding.

(Embodiment) Next, the present invention will be described in more detail with reference to the illustrated embodiment. The structure and operation other than the fixed stopper and the movable stopper provided at the front and rear ends of the mold supporting portion are as follows. Since it is the same as the above-mentioned prior invention, the features of the present invention will be described below.

1 and 2 show an embodiment of the present invention. FIG. 1 is a view corresponding to an AA enlarged sectional view of FIG. 4, and FIG. 2 is an enlarged view of a B portion of FIG.

Of the two pairs of support beams 5 and 5 that make up the mold support portion 4a (the same applies to 4b and 4c), the rear end of the support beam 5 on the rear side (left side in FIG. 1) has a corner. A rod-shaped fixed stopper (10) is fixed by welding, screwing or the like.

On the other hand, a support plate 12 is welded and fixed below the front edge of the support beam 5 on the front side (right side in FIG. 1), and one plate portion 14 constituting a hinge 13 is attached to the front surface of the support plate 12. It is fixed.
Further, a square bar-shaped movable stopper 22 is fixed to the rear surface of the other plate portion 21 of the hinge 13.

The movable stopper 22 is located at the front end portion of the upper surface of the front support beam 5 as shown in FIG. 2 when it is rotated upward about the hinge 13, and is movable with respect to the upper surface of the support beam 5. The stopper 22 is in contact with the lower surface. Further, when the movable stopper 22 is rotated downward about the hinge 13, the entire movable stopper 22 is positioned below the upper surface of the front support beam 5.

Further, the movable stopper 22 has
Is provided with a through hole 23 that penetrates vertically when the hinge 13 is rotated upwards. Further, a hole 24 is formed in a part of the front support beam 5 which is aligned with the through hole 23. The locking pin 25 can be inserted inside the hole 24 and the through hole 23, and the movable stopper 22 is fixed to the upper surface of the support beam 5 at the time of insertion.

In the case of the press working machine of the present invention configured as described above, when performing the press working, the front and rear end edges of the lower surface of the die 6 placed on the upper surface of the die supporting portion 4a are fixed to the fixed stopper 10. It is held down by the movable stopper 22. A locking pin 25 is inserted into the through hole 23 formed in the movable stopper 22 and the hole 24 formed in the support beam 5 from above so that the movable stopper 22 is supported as shown by the solid line in FIG. Make sure that it does not move from the top surface of the beam 5.

In this way, the fixed stopper 10 and the movable stopper 22 are respectively attached to the lower and front end edges of the lower surface of the mold 6 placed on the mold supporting portion 4a.
Therefore, the die 6 placed on the upper surface of the die supporting portion 4a does not move regardless of the vibration accompanying the operation of the press machine.

When the mold 6 is replaced, the locking pin 25 is pulled out from the hole 24 and the through hole 23, and the movable stopper 22 is rotated downward about the hinge 13. As a result, the movable stopper 22
Does not project from the upper surface of the mold support 4a,
It is possible to easily replace the mold 6 while sliding the mold 6 on the upper surfaces of the support beams 5 and 5 that form the mold supporting portion 4a.

In FIG. 1, reference numerals 26 and 27 are limit switches for detecting the rising upper end position and lowering lower end position of the ram frames 15a and 15b, respectively, and are fixed by a rod 28 fixed to the upper surface of the ram frame 15a at the upper end. Moved.

Reference numeral 29 is a protective cover pivotally supported on the front surface of the connecting beam 7 or the supporting beam 5, which is made of a transparent plate such as an acrylic plate, and is hung down as shown by the solid line at the time of press work, and the mold is At the time of replacement work of No. 6, it is retracted upward as shown by the chain line.

(Effect of the device) Since the press machine of the present invention is constructed and operates as described above, it is possible to perform various press work without exchanging the mold, which enables high-mix low-volume production. In addition to the effect that it was possible to dramatically improve the production efficiency when doing it, it is also possible to reduce the occupied area of the factory floor surface, in addition to the same effect as the previous invention, at the time of pressing work It is possible to facilitate the die replacement work while surely preventing the die from moving.

[Brief description of drawings]

1 and 2 show an embodiment of the present invention. FIG. 1 is a view corresponding to an AA enlarged cross section of FIG. 4, FIG. 2 is an enlarged view of a B portion of FIG. 1, and 3 to 3. FIG. 7 shows a press working machine according to the prior invention, FIG. 3 is a perspective view showing the entire structure, FIG. 4 is a front view showing a part of the machine, FIG. 5 is a plan view, and FIG. Is a right side view, and FIG. 7 is a sectional view taken along line CC of FIG. 1: Support, 2: Steel, 3: Substrate, 4a, 4b, 4c: Mold support, 5:
Support beam, 6: Mold, 7: Connection beam, 8: Frame, 9: Connection plate, 1
0: Fixed stopper, 11: Lifting member, 12: Support plate, 13: Hinge, 1
4: Plate part, 15a, 15b, 15c: Ram frame, 16: Connecting beam, 17:
Hydraulic cylinder, 18: Mounting board, 19: Cylinder body, 20: Output rod, 21: Plate part, 22: Movable stopper, 23: Through hole, 24:
Hole, 25: Locking pin, 26, 27: Limit switch, 28: Rod, 29: Protective cover.

Claims (1)

[Scope of utility model registration request] 1. A frame having a pair of left and right columns, which are provided upright with a space therebetween in the width direction, and a frame provided at the same height position with a space provided in the front-rear direction. A pair of front and rear support beams supporting the pair of pillars as one set, and a plurality of sets of mold supporting members provided with different heights between the pair of pillars and the pair of mold supporting portions. A pair of left and right elevating members which are supported on the columns so as to be able to move up and down along the columns, and a plurality of ram frames which are suspended between the pair of elevating members at different heights. Elevating means for elevating and lowering the plurality of ram frames, and a plurality of molds mounted on the plurality of sets of mold supporting portions and having respective upper surfaces facing any of the plurality of ram frames. And on the rear side support beam of the pair of two support beams constituting the above-mentioned mold supporting portions. It is pivotally supported by a fixed stopper fixed to the rear end and a hinge provided on the front edge of the front support beam. However, a movable stopper that is located below the upper surface of the front support beam when rotating downward, and a through hole that vertically penetrates the movable stopper when rotating upward about a hinge. , A part of the support beam on the front side, which is formed in a part aligned with the through hole, and can be inserted inside the hole and the through hole, and the movable stopper is fixed to the upper surface of the support beam during insertion. Pressing machine consisting of a locking pin that