JPH0442019Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a storage device for press molds, and particularly to a storage device that can advantageously store a plurality of press molds while occupying a small space.

For example, an example of a storage device provided in connection with a general-purpose press is shown in FIG. This is done by providing a die changing means 2 consisting of a chain conveyor or the like extending in both directions orthogonal to the flow direction of the workpieces shown by arrow A in the general-purpose press 1, and by moving each press die 3 above the floor surface. arranged in a plane, further facing each press die 3,
A pusher 4 for pushing it into the mold exchange means 2 is attached to the floor. To replace the press die 3 here, first, the pusher 4 supplies the required press die 3 to the die exchange means 2, and then the die exchange means 2 is driven to replace the press die 3 with the general-purpose press 3. This is done by carrying out the used press die 3 to the opposite side of the die exchange means 2 at the same time as positioning it inside, and the carried out press die 3 is returned to its original position on the floor by a pull-out means (not shown). taken out.

However, in such conventional technology, each press mold 3 is stored flat on the floor, so there is a problem in that it requires a large occupied area. 4 and the pull-out means resulted in a further increase in the occupied area.

This invention advantageously solves the problems of the prior art, and has two parts on both sides of the press machine.
By arranging multiple stages of press mold storage stands that are driven up and down by lifters, pulley devices, etc., and storing the press molds in each storage stand, the area occupied for storage can be significantly reduced. A fixed rail and an elevating rail are installed on the press mold storage stand and the press equipment, respectively, to guide the movement of the press mold, and a removable rail that horizontally connects the press mold on the press equipment and the press mold inside the press mold storage stand is installed. The press is provided with a connecting means, and further includes a mold switching means for moving and driving the mutually connected press molds to store one press mold in the press mold storage table and simultaneously position the other press mold in the press device. The present invention provides a press mold storage device that enables press molds to be replaced without providing a pusher or other drive source for each press mold storage stand, thereby further reducing the occupied space.

This invention will be explained below based on the drawings.

FIG. 2 is a plan view schematically showing an embodiment of this invention, and FIG. 3 is a front view thereof.

In the figure, 11 indicates a general-purpose press, arrow A indicates the flow direction of the workpiece with respect to the general-purpose press 11, and 12 indicates a multi-stage press mold that is arranged on both sides perpendicular to the flow direction of the workpiece of the general-purpose press 11 and is driven up and down. Each storage platform is shown.

The multi-stage press mold storage stand 12 in this example consists of two upper and lower press mold storage stands 13 that are integral with each other, and these press mold storage stands 13 are connected to a pit 14.
It is driven up and down by a lifter 15 provided inside. This lifter 15 consists of a lazy tongue link mechanism 16 for linearly moving the press mold storage table 13 in the vertical direction, and a drive cylinder 17 that operates this link mechanism 16. Links 16 on each side of the upper and lower ends of
a and 16b are allowed to move horizontally within the lower frame 19a and the upper frame 19b via rollers 18a and 18b, respectively, based on the operation of the drive cylinder 17. In the figure, 20 indicates the lower limit stopper of the lazy tongue link mechanism 16, and the upper limit position is limited to the rollers 18a, 18.
This is done by a stopper (not shown) that limits the rolling of b.

Further, the upper and lower press mold storage stands 13, 13 are mutually integrated by a pillar 21, and each press mold storage stand 13 has wheels 23 of hemming press molds 22b, 22c, 22d stored therein. It has a pair of fixed rails 24 that guide the travel of the vehicle. On the other hand, the general-purpose press 11 is moved to the fixed rail 24 by raising and lowering each press mold storage stand 13 to a predetermined position.
It has a lifting rail 25 that is aligned on a straight line. Therefore, the press molds 22b, 22c, and 22d can be carried in and out of the general-purpose press 11 and the press mold storage stand 13 very easily by running them on the respective rails 24 and 25. In addition, the lifting rail 25 installed on the general-purpose press 11
The press mold 2 is moved by the action of an elevating means (not shown).
2a, 22b, 22c, and 22d come into contact with the wheels 23 only when loading and unloading them, and after that, they are retreated into the machine body, so that they are not subjected to the tightening load or working load of the press die 22a.

Furthermore, the press mold 22a on the general-purpose press and the required press molds 22b, 22c in the press mold storage stand,
A connecting bar 26 is provided as an example of a removable connecting means that horizontally connects the connecting bar 2.
6, the two press molds 22a, 2
2b can run simultaneously. In order to achieve such running, in this example, the general-purpose press 1
A mold exchange means 29 consisting of a chain conveyor 27 and a drive motor 28 is provided in the general-purpose press 11 between the two lifting rails 25, 25 of the press 11. Here, the chain conveyor 27 is a press die 22 on the conveyor.
a has two pairs (one pair not shown) of conveying claws 30 that engage from both left and right sides in FIG. The running force on the elevating rail 25 is transmitted to the elevating rail 22.

Therefore, press molds 22a, 22b, 22c, 2
2d is replaced by connecting the used press die 22a on the general-purpose press 11 and the required press die 22b in the press die storage stand 13 with a connecting bar 26 of a predetermined length, and transporting the press die 22a on the press. nail 30
For example, by moving the press die 22b in the left direction in FIG.
After the used press mold 22a has been separated to the left of the chain conveyor 27, both press molds 22a and 22b are moved by driving the press mold 22b pulled out from the press mold storage table 13. This is done only by the conveyance claw 30 that engages with the conveyance claw 30.

FIG. 4 is a right side view of FIG.
A post 32 is fixed in an upright position to the lower frame 19a at a distance somewhat narrower than the width of the press mold storage stand 13 on the side of the lifter 15 away from the general-purpose press 11, also in an upright position. Two guide rails are each shown fixed in position.

Here, to increase the rigidity of these, post 3
1 and the guide rail 32 are interconnected by a bracket 33a, and the upper and lower ends of the guide rails 32, 32 are interconnected by a bracket 33b, and in order to ensure reliable and smooth lifting and lowering operation of the press mold storage platform 13, Channel-shaped depressions (not shown) provided on both sides of the press mold storage stand 13 are engaged with the lift guide 34 attached to the inside of the post 31, and the press mold 22b placed on the press mold storage stand 13 is , 22c, 22d from falling, press molds 22b, 22c,
A roller 35 provided at 22d is fitted inside them so as to be able to roll.

FIGS. 5a and 5b are an enlarged partial side view and a partial cross-sectional view of the roller 35 located on the lower right side of FIG. The pressed roller 35 moves the press mold 22b into the press 1.
1 is completely stored in the press mold storage stand 13, the press mold storage stand 1 enters into the inside of the channel-shaped guide rail 32 through the notch 32a provided at only one place on the guide rail 32, and the press mold storage stand 1 is completely stored in the press mold storage stand 13.
3 moves along the guide rail 32, so that during the vertical movement of the press mold storage platform 13 and in its ascending or descending posture,
The movement of the press die 22b on the fixed rail 24 can be reliably prevented by the engagement between the rollers 35 and the guide rail 32, and therefore high safety can be ensured.

On the other hand, the press mold 22b is pulled out from the press mold storage stand 13.
By raising or lowering the roller 35 to a predetermined height, the roller 35 provided on the press die 22b
This can be carried out extremely smoothly by bringing it to a position corresponding to the notch 32a provided in the guide rail 32.

In addition, 36 in the figure indicates a positioning mechanism, and the post 3
This positioning mechanism 36 provided on a beam 37 protruding from 1 in the front-rear direction in the figure is connected to a cylinder 39 attached to a bracket 38 and this cylinder 3
9, the link mechanism 4 is removable from a positioning stopper 40 provided on the press mold storage stand 13.
Consists of 1. This positioning mechanism 36 engages the positioning mechanism with a positioning stopper 40 when the press mold storage stand 13 of each stage reaches a predetermined press mold exchange position, thereby moving the press mold storage stand 13 in the vertical direction. Make sure it stays in place. In addition, when the press mold storage table 13 is raised or lowered, it goes without saying that the engagement between the two is released by the action of the cylinder 39 prior to its operation.

Therefore, according to this positioning mechanism 36, the fixed rail 24 can be moved to the lifting rail 2 regardless of whether or not the weight of the press mold is acting on the press mold storage table 13.
5, it is possible to always align them accurately.

Again in FIG. 3, reference numeral 42 indicates a rail laid on the floor, and this rail 42 brings each press mold storage platform 13 to the floor level, thereby making it extremely easy to carry in and out of the press molds 22b, 22c, and 22d. Make it easy.

According to the apparatus configured in this manner, each of the press molds 22b, 22c, and 22d is stored three-dimensionally in the multi-stage press mold storage table 12, so that the floor space occupied by the press molds is significantly reduced. Become.

In addition, press molds 22a, 22b, 22c, 22
For example, as shown in FIG.
During the pressing operation using the press mold 22a stored in the press mold 22a stored in the press mold 22a, the press mold 22b on the right side is selected and the lifter 15 is operated to a predetermined position, and the press mold 22b is set up. After the pressing operation is completed, both press molds 22a and 22b are connected by the connecting bar 26, and then, by the operation of the mold exchange means 29,
Both press molds 22a and 22b are connected to a chain conveyor 2.
7, move it to the left in the figure and remove the used press mold 22.
This is done by simultaneously storing the press die 22b in the left press die storage stand 13 and positioning the other press die 22b in the general-purpose press 11. Note that this storage and positioning can be easily performed by appropriately selecting the length of the connecting bar 26 and by stopping the operation of the chain conveyor 27 using a micro switch or the like (not shown).

Therefore, press molds 22a, 22b, 22c, 2
Not only does the replacement work of 2d become easier, but also the press molds 22b, 22c, 2
There is no need to provide a drive source for 2D travel, which reduces not only the occupied space but also the power consumption.
Furthermore, equipment costs are reduced.

After the above-mentioned replacement work is completed, the storing work and setting work are completed by removing the connecting bar 26, taking measures to prevent the stored press mold 22a from falling, and tightening the positioned press mold 22b.

Furthermore, as mentioned above, each press mold storage stand 1
The press molds 22b, 22c, and 22d can be easily carried in and out of the press molds 3 by means of rails 42 laid on the floor.

Although this invention has been described above with reference to the illustrated example, it is also possible to drive the multi-stage press mold storage platform 12 up and down using a pulley device or a cylinder device directly connected thereto. In addition, the press mold storage stand 13, which is shown in the illustrated example as having two upper and lower stages, can also be made into a plurality of three or more stages.

According to this invention, by storing the press molds three-dimensionally, the floor area occupied by the press molds can be reduced and the floor surface can be used effectively. In addition, by using the mold exchange means installed in the press machine to store one of the two press molds and pull out the other mold at the same time, it is possible to shorten working time and save space and consumption. The power consumption can be reduced, and the installation cost can also be reduced.

In addition, according to this invention, by fitting the roller attached to the press mold into the channel-shaped guide rail from the only notch, the press mold can be replaced without any obstruction. Unexpected movement of the press die on the storage stand, and furthermore, the fall of the press die from the storage stand, can be reliably prevented under the engagement of the rollers and guide rails. Under the cooperation of the stopper and positioning mechanism installed in the
By specifying the vertical position of the press mold storage platform, it is possible to accurately align the fixed rails provided on the storage platform with the lifting rails provided on the press, making it extremely smooth and easy to change press molds. It can be done quickly.

[Brief explanation of the drawing]

Fig. 1 is a plan view schematically showing a conventional example, Fig. 2 is a plan view schematically showing an embodiment of the invention, Fig. 3 is a front view of the embodiment shown in Fig. 2, and Fig. 4 is a plan view schematically showing an embodiment of the invention. 3 is a right side view, and FIG. 5 is an enlarged view showing how the roller provided in the press die is fitted into the guide rail. DESCRIPTION OF SYMBOLS 11...General-purpose press, 12...Multi-stage press mold storage stand, 13...Press mold storage stand, 15...Lifter, 22a, 22b, 22c, 22d...Press mold, 23...Wheel, 24... Fixed rail, 2
5... Lifting rail, 26... Connection bar, 27...
Chain conveyor, 28... Drive motor, 29...
... Mold exchange means, 30 ... Conveyance claw, 32 ... Guide rail, 32a ... Notch, 35 ... Roller, 3
6...Positioning mechanism, 39...Cylinder, 40...
...Positioning stopper, 41...Link mechanism.

Claims (1)

[Scope of utility model registration request] A plurality of press mold storage stands 12 are disposed on both sides of the press apparatus 11 and are driven up and down, and a press mold 22 with wheels 23 is installed on each press mold storage stand 13 and the press apparatus 11, respectively. Fixed rail 24 and lifting rail 25 to guide
, a detachable connecting means 26 that horizontally connects the press mold 22a on the press device and the press molds 22b, 22c, and 22d in the press mold storage table; and press molds 22 provided on the press device 11 and connected to each other.
One of the press molds 22 is driven by traveling a and 22b.
It is fixed in an upright position with a mold switching means 29 that positions the other press mold 22b in the press device 11 at the same time as storing the press mold 22b in the press mold storage stand 13.
Surrounding the rollers 35 attached to each press die, at a height position corresponding to the exchange position of the press die,
The guide rail 32 has the only notch 32a that allows the roller to come off, and moves forward and backward with respect to the vertical path of the press mold storage platform, and at the press mold exchange position,
A press type storage device comprising a positioning mechanism 36 that engages from below a positioning stopper 40 provided on the press type storage stand.