JPH0442098B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a mold changing device, specifically a mold changing device for changing molds used in a plurality of molding machines arranged in series at predetermined pitch intervals. Relating to a switching device.

(Conventional technology) Generally, when forming metal products, etc.
Multiple molding machines such as metal press machines are installed in parallel, and each molding machine is equipped with various molds of different shapes, and each mold is used to sequentially mold the product from the initial stage to the final stage. ing.

By the way, when molding different models and types of products using multiple molding machines as described above,
It is necessary to replace the molds set in each of the molding machines.

In order to replace the molds set in each of the molding machines, conventionally, for example, a forklift or an overhead crane is used to take out the molds from each of the molding machines and store them in a mold storage. A new mold is taken out from the mold storage and set in each molding machine.

(Problem to be Solved by the Invention) However, as described above, when replacing the molds set in each molding machine using a forklift, etc., it takes a long time to replace each mold. Moreover, since it is necessary to stop each molding machine when replacing each mold, there is a problem that the operating efficiency of each molding machine becomes poor and productivity decreases.

The present invention was made in view of the above-mentioned problems, and its purpose is to replace all the molds used in each of the molding machines in a short time by one reciprocating movement of the mold transfer machine. This makes it possible to reduce the down time of each of the molding machines as much as possible and increase productivity.In addition, the work of loading and unloading molds from the mold storage to the mold transfer machine is quick and easy. It is an object of the present invention to provide a mold changing device that can easily perform the mold changing operation, thereby shortening the overall time of the mold changing operation and improving safety.

(Means for Solving the Problems) As shown in the embodiments of the drawings, the present invention provides an exchanging device for exchanging molds used in a plurality of molding machines arranged in series at predetermined pitch intervals. A mold storage H comprising a plurality of storage shelves T each having a predetermined number of shelves in the vertical direction, each of which can be moved around the mold storage H; Mobile trolley 1 capable of reciprocating between
A first base 3 and a second base 4 are arranged above and below to support each other so as to be able to rise and fall, and the first base 3 has the same number of molds as the molding machines on which the molds are placed. The first support stand 5 is movable in the front-rear direction and is supported in the row direction of the molding machines at a pitch interval of 1/2 of the pitch interval of the molding machines,
On the second base 4, the same number of second support stands 6 as the first support stands 5 are movable in the front and back direction, and the pitch interval of the molding machines is half the pitch interval of the molding machines in the row direction of the molding machines. The present invention is characterized in that it includes a mold transfer machine A supported at pitch intervals.

(Function) When replacing the mold set in each of the molding machines with a new mold, first move the movable cart 1 to the mold storage side and place the desired mold in the mold storage H. The storage shelf T that accommodates the molds is moved around to face the movable cart 1, and new molds to be set in the respective molding machines are taken out from the storage shelf T and placed on the first base, for example. 3 each 1st
The movable cart 1 is then moved to a position facing each of the molding machines, and the molds set in each of the molding machines are stored on the first support base 5. The new mold will be replaced with a new one.

Further, the replacement work between the new molds housed in each of the first support stands 5 and the molds set in each of the molding machines is performed in the following manner.

That is, at a position facing the molding machine, the second base 4 on the side where the mold is not stored is such that the second support stand 6 supported by the base 4 faces the mold setting position of the molding machine. After that, the second support stand 6 is moved toward the set position, the mold is taken out onto the second support stand 6 from this set position, and then the support stand 6 is moved to the second support stand 6. It is retreated onto the base 4.

Next, the first base 3 that accommodates a new mold to be replaced is lifted and lowered so that the first support 5 supported by the base 3 faces the mold set position, and then The first support stand 5 is moved toward the set position, and a new mold on the first support stand 5 is set at the set position.

By repeating such operations for each of the molding machines, the molds set in each molding machine and the new molds stored in each of the first supports 5 of the first base 3 can be combined. An exchange takes place.

As described above, the work of exchanging the mold set in each molding machine with a new mold is performed by replacing the first and second bases 3 and 4 provided on the movable trolley 1 with each base 3, It is only necessary to operate the first and second support stands 5 and 6 supported at 4 and stop the movement of the mold mounting machine A twice to align each support stand 5 and 6 with the molding machine. This allows all molds to be replaced quickly and easily, thereby shortening the mold replacement time of each molding machine, or in other words, significantly shortening the downtime of each molding machine, increasing productivity. is enhanced.

(Embodiments) The mold changing device according to the present invention will be described below with reference to embodiments of the drawings.

Fig. 3 shows the arrangement structure of the molding machines and the mold storage. A mold storage H equipped with a plurality of storage shelves T is arranged in series and at a side position of each of these molding machines P1 to P4, while this mold storage H and each of the molding machines Two rails R are laid between P1 to P4, a mold transfer machine A is run along the rails R, and the mold is set to each of the molding machines P1 to P4 via the exchange device A. Each of the molds M stored in the storage H is replaced with the mold M stored in the storage H.

The mold transfer machine A, as shown in detail in FIG. A frame body 2 consisting of a plurality of vertical frames 21 and an upper frame 22 assembled on each of the vertical frames 21 is attached to the upper part of the frame body 1, and inside the frame body 2, a horizontally long rectangular shape is mounted on the movable trolley 1. The first and second bases 3 and 4 are arranged in two stages, upper and lower, and each of the bases 3 and 4 is supported along each vertical frame 21 of the frame body 2 so as to be vertically movable.

At the upper position of the first base 3, four first supports 5, the number of which is the same as the number of molding machines P1 to P4, are movable in the front and rear directions with respect to the molding machines P1 to P4, Further, the molding machines P1 to P4 are supported in the row direction at a pitch interval of 1/2 of the pitch interval of the molding machines P1 to P4, and the molding machines P1 to P4 are also supported on the upper part of the second base 4. The same number of second support stands 6 are movable in the front-rear direction and are supported at intervals of 1/2 the pitch of the molding machines P1 to P4 in the row direction of the molding machines.

A motor 12 for driving the running wheels 11 is provided at a lower position of the movable trolley 1, and by driving the running wheels 11 with the motor 12, the movable trolley 1 is connected to each of the molding machines P1 to P4. It is made to move back and forth between it and the mold storage H.

Further, guide plates 7 extending vertically along the vertical frame 21 of the frame body 2 are attached to both sides of the first and second bases 3 and 4 in the horizontal direction, and each guide plate 7 is connected to each of the bases. The stands 3 and 4 are fixed together in two stages, upper and lower.

Furthermore, a support plate 23 is attached to the upper part of the vertical frame 21 in the frame 2, and the support plate 23 supports the reversible motor 8 equipped with a reduction gear 81, and the motor is attached to the frame 2. These motors 8 and the lifting device 9 support the lifting device 9 driven by the motor 8.
As a result, the first and second bases 3 and 4 are raised and lowered along each vertical frame 21 of the frame body 2.

The lifting device 9 includes first to third sprockets 91, 92, 93, and each of these sprockets 9.
1, 92, 93 and the drive sprocket 81a of the reduction gear 81, respectively, and one lengthwise end thereof is connected to the upper end side of each guide plate 7. The first sprocket 91 is rotatably supported on both sides of the lower part of the drive sprocket 81a in the reduction gear 81, and the second and third sprockets 92,
93 are rotatably supported by the upper frame 22 of the frame body 2 at positions opposite to both lateral ends of the respective bases 3 and 4 on the upper frame 22, while each of the sprockets 91, 92 and 91 , 92, 93 are connected to the upper portions of the guide plates 7 fixed to both sides of the bases 3, 4 in the lateral direction.

In this way, the speed reducer 8 interlocked with the motor 8
1, the first to third sprockets 91, 92, 93 are rotated in forward and reverse directions, and the guide plates 7, that is, the bases 3, 4 are rotated in the frame through the chains 94, 95. The body 2 is raised and lowered along each vertical frame 21 in the vertical direction.

Further, each of the support stands 5 and 6, which are provided on the upper part of each of the base stands 3 and 4 so as to be movable back and forth, is composed of two slide members stacked in upper and lower layers, although not shown, and each of the slide members is By moving the bases 3 and 4 in the front and rear directions, the molds M can be taken out from the molding machines P1 to P4, and new molds M can be inserted into the molding machines P1 to P4.
Set it to 4.

Each of the support stands 5 and 6 supported on each of the base stands 3 and 4 has a motor 5 provided at a lower position of each of the support stands 5 and 6.
1 and 61 to enable movement in the front and rear directions.

Further, each of the molding machines P1 to P4 includes the mold M
A hydraulic cylinder (not shown) is provided at a rear position facing the set position S, and the operation of the cylinder pushes the mold M from the set position S, thereby pushing the mold M outward. Do it as if you were taking it out.

Further, in the front part of the mold setting position S in each of the molding machines P1 to P4, and in the opposite part to each support stand 5, 6 supported on each base stand 3, 4, these support stands 5, 6 are provided. A pair of protruding rods 10, 10 each having an interval slightly wider than the length in the width direction are provided protrudingly,
The mold M to be taken out from the set position S of each of the molding machines P1 to P4 by the hydraulic cylinder is guided to each of the supports 5 and 6 via each of the projecting rods 10.

Further, the mold storage H disposed at a side position of each of the molding machines P1 to P4 has a plurality of storage shelves T each having a predetermined number of shelves T in the vertical direction, as shown in FIG. The molds M stored in each shelf t of each storage shelf T are transferred to the transfer machine A while each storage shelf T is moved around the storage shelf T. It can be taken out.

In the above embodiment, the movable cart 1 is provided with first and second bases 3 and 4 in two stages, upper and lower, at an upper position, and supports 5 and 6 are supported on each of the bases 3 and 4, respectively. However, it is also possible to provide two sets of each of the bases 3 and 4 on both the front and rear sides of the movable trolley 1. In such a case, it is particularly important to arrange the molding machines around each rail R. When molding various products by placing it on both sides of the
Using this, it is possible to replace the mold M used in each of the molding machines.

Further, a shelf frame having a plurality of shelves may be erected on one side of the bases 3 and 4 in the front and back direction.

When replacing each mold M set in each of the molding machines P1 to P4 with a new mold M stored in the storage H using the exchanging device A configured as described above, This is done as follows.

First, by driving the running wheels 11 of the movable trolley 1 via the motor 12, the movable trolley 1 is moved along the rail R toward the mold storage H. The storage shelf T containing the desired molds in is moved around to face the movable cart 1, and the new molds M to be set in the molding machines P1 to P4 from the storage shelf T to H are moved around the storage shelf T to face the movable cart 1. Each base 3, 4 provided on the mobile trolley 1
For example, they are taken out onto each of the first support stands 5 of the first base 3, and then the movable cart 1 is moved to a position facing each of the molding machines P1 to P4.

The movable cart 1 is connected to the first and second molding machines P.
1, when moved so as to face P2, among the respective support stands 5 and 6 supported by the respective bases 3 and 4, the support stands 5 and 6 located on the rightmost side are
The support stands 5 and 6, which are opposite to the mold set position S of the molding machine P1 and are arranged third from the rightmost side of the respective bases 3 and 4, are located at the mold set position S of the second molding machine P2. Each support stand 5 is positioned so as to face the position S, and supported on each of the bases 3 and 4 when the movable trolley 1 is moved so as to face the third and fourth molding machines P3 and P4, 6, each support stand 5, 6 located on the leftmost side faces the mold setting position S of the fourth molding machine P4, and each of the bases 3,
Each support stand 5 placed second from the rightmost side of 4,
6 faces the mold setting position S of the third molding machine P3.

In this way, the movable cart 1 is moved so as to face the first and second molding machines P1 and P2, and each of the support stands 5 and 6 located on the right side of the support stands 5 and 6 is moved to the right side. Each support stand 5, 6, which is placed third from the right side of each of the bases 3, 4 and facing the mold set position S of the first molding machine P1, is placed in the mold set position S of the second molding machine P2. facing the mold set position S,
The molds M set in the first and second molding machines P1 and P2 are replaced at the same time, and in the same manner as above, the molds M set in the third and fourth molding machines P3 and P2 are replaced simultaneously.
Each mold M set in No. 4 is replaced at the same time.

However, as described above, each of the molding machines P1 to P4
When replacing each mold M set on the first base 3 with a new mold M taken out from the mold storage H on each support stand 5 of the first base 3, proceed as follows. will be carried out.

That is, by the operation of the lifting device 9 in conjunction with the rotation of the motor 8, the second base 4 on the side where the mold is not stored is moved.
is raised and lowered so that the second support stand 6 supported by the base 4 is slightly lower than the upper surface of each projection rod 10 of each of the molding machines P1 to P1, and then the support stand 6 is The molding machine P1 via each motor 61
- P4 side, and then the mold M set in the set position S of each of the molding machines P1 to P4 is pushed by the hydraulic cylinder from the rear side to move the mold M to the side of each of the projections. After placing the mold M on the projecting rod 8 on the support stand 6 by taking it out onto the rod 10 and then moving the support stand 6 to the upper side via the base 4, The support table 6 on which the mold M is placed is moved by the motor 61.
is moved back onto the base 4 by driving.

Next, the first support stand 5 supporting the first base 3 in which the new mold M to be replaced is housed is moved to the mold set position S of each of the molding machines P1 to P4. The motor 8 and the lifting device 9 are operated to raise and lower the motor 8 so as to face each other, and then the first support 5
is moved toward the set position S via the motor 51, and a new mold on the first support stand 5 is set at the set position S.

As explained above, the movement of the mobile cart 1,
The above-mentioned respective motors 12, 8, 51, and 61 are used to raise and lower the bases 3 and 4 and move the support stands 5 and 6 in the front and rear directions. This allows the mold M to be replaced automatically.

(Effects of the Invention) As explained above, the mold changing device according to the present invention has a combination structure of the mold storage H and the mold transfer machine A, which are arranged in series at a predetermined pitch interval. Mold exchange for multiple molding machines can be done quickly and easily.

That is, the mold transfer machine A, which is capable of reciprocating between a plurality of molding machines and the mold storage H, has the above-mentioned configuration. The same number of new molds stored in the mold storage H as in the molding machine can be taken and placed on the support stand 5, and new molds can be taken out from the molding machine and placed on the second support stand 6 in the second base 4. As a result, when replacing molds set in multiple molding machines with new molds stored in the mold storage H, it is possible to take in and place all unnecessary molds. , all the molds can be exchanged by simply moving the mold transfer machine A once back and forth between the mold storage H and the molding machine.
A first support stand 5 and a second support stand 6 provided on the base 4
In particular, since the molding machines are supported in the row direction at intervals of half the pitch of the molding machines, it is possible to replace the molds while suppressing the overall length of the mold mounting machine A from increasing. At this time, half of the molds can be replaced at the same time at the same stop position of the mold mounting machine A, and this allows the mold mounting machine A to be moved in order to align each of the support stands 5 and 6 with the molding machine. By only stopping twice, all the molds can be replaced quickly and easily, and the mold replacement time of each molding machine can be shortened accordingly. The downtime required when changing molds can be shortened, and productivity can be significantly increased.

Moreover, the mold storage H to be combined with the mold transfer machine A is provided with a plurality of storage shelves T having a predetermined number of shelves in the vertical direction, and each of these storage shelves T can be moved around. Since it is configured with a rotary rack system, it is possible to load a new mold onto the first support stand 5 in the mold transfer machine A, and store unnecessary molds taken out on the second support stand 6. The molds can be easily stored in the warehouse H, and the mold replacement time of the molding machine can be shortened and the mold replacement work itself can be done quickly.

That is, by moving the mold transfer machine A around a desired storage shelf T in the mold storage H while the mold transfer machine A is moved to the mold storage H side, the mold transfer machine A is moved. The storage shelves T can be easily opposed to each of the support stands, thereby making it possible to quickly and easily take molds into and out of the mold storage H using the function of the mold transfer machine A. , and can be performed safely.

[Brief explanation of drawings]

FIG. 1 is a front view showing a mold exchange device according to the present invention, FIG. 2 is a front view of a mold storage, and FIG. 3 is a drawing showing the arrangement structure of a molding machine and a mold storage. . 1...Moving trolley, 3...First base, 4...Second
Base, 5...first support stand, 6...second support stand.

Claims (1)

[Claims] 1. An exchange device for exchanging molds used in a plurality of molding machines arranged in series at a predetermined pitch interval, comprising a plurality of storage shelves T having a predetermined number of shelves in the vertical direction, A first base 3 and a first base 3 are placed on a mold storage H in which each storage shelf T can be moved around, and on a movable trolley 1 that can reciprocate between the molding machine and the mold storage H. Two bases 4 are disposed vertically and supported so as to be able to rise and fall, and the first bases 3 have the same number of first supports 5 as the molding machines on which the molds are placed in the front-rear direction. The second base 4 has the same number of supports as the first support base 5, and is movable and supported in the row direction of the molding machines at a pitch interval of 1/2 of the pitch of the molding machines. A mold transfer machine A that is movable in the front-rear direction and supports a second support stand 6 at a pitch interval of one half of the pitch interval of the molding machines in the row direction of the molding machines. A mold changing device characterized by comprising: