JPH0534100B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic exchange device for a plurality of molds, and more particularly to an automatic exchange device for exchanging a plurality of molds used in a plurality of molding machines.

(Conventional technology) Generally, when forming metal products, etc.
Multiple molding machines such as metal press machines are installed in line according to the molding process, and each of these molding machines is set with various molds of different shapes according to the molding process.
The product is molded using each of these molds according to the molding process.

By the way, when various types of products are molded using a plurality of molding machines as described above, it is necessary to replace the molds set in each of the molding machines.

Conventionally, when replacing the molds set in each of the molding machines, for example, a mold exchanger that moves on rails is used instead of a forklift, and the molds are removed from each of the molding machines. The new molds are stored in a mold storage, and new molds are taken out from the mold storage and replaced and set separately in each of the molding machines.

(Problem to be Solved by the Invention) However, when replacing the molds set in the respective molding machines using the above-mentioned mold exchange machine, the mold exchange machine exchanges the molds set in the respective molding machines and the mold storage. It is necessary to reciprocate between the molding machines a number of times corresponding to the number of molding machines. Therefore, in addition to the time required to change molds, it also requires time to travel back and forth between the molding machine and mold storage and time to take out molds from the mold storage. There was a problem in that the time required to replace the molds of the molding machines, that is, the time required to stop each of the molding machines, became long.

The present invention was invented in view of the above-mentioned problems, and its purpose is to automatically replace various types of molds used in the above-mentioned molding machines in a short time,
It is an object of the present invention to provide an automatic exchange device for a plurality of molds, which can increase productivity by reducing the stop time of each molding machine, and can also easily control automatic exchange.

(Means for Solving the Problems) As shown in the embodiments of the drawings, the present invention is an exchanging device for exchanging a plurality of molds used in a plurality of molding machines. A shelf frame having a number of mold storage shelves H, and a movable trolley 1 capable of reciprocating between the molding machines and the mold storage shelves H, and having at least one shelf 22 more than the number of molding machines. 2 is erected, and on one side of the shelf frame 2 in the front-rear direction, a mold transfer machine A is provided, which supports a base 3 which supports a mold support stand 4 so as to be movable in the front-back direction and can move up and down. , the mold transfer machine A includes a first drive device I that reciprocates the movable cart 1, a second drive device that moves the mold support 4, and a third drive that raises and lowers the base 3. The device is equipped with a controller C that drives and controls each of these drive devices.

Regarding the upright position of the shelf frame 2 and the installation position of the base 3 in the mold transfer machine A, and the moving direction of the mold support stand 4 movably supported on the base 3, the installation direction of the molding machine On one side in the moving direction of the mold transfer machine A that moves along A base 3 having a shape is disposed, and the mold support 4 is moved in a direction perpendicular to the moving direction of the mold transfer machine A on the base 3 in a direction of distance from and near the molding machine. It is especially convenient when a plurality of molding machines are arranged on one side in the direction of movement of the mold transfer machine A, and it is also possible to support the mold transfer machine A in a direction in which the molds are moved. A shelf frame 2 is erected on one side in the moving direction of the mounting machine A, and a base 3 with a mold support 4 is provided on the other side, and the mold support 4 is attached to the base 3, While supporting the mold transfer machine A so as to be movable in the same direction as the moving direction, if a turntable 5 is provided on the mold support stand 4, the mold transfer machine A
This is particularly advantageous when a plurality of molding machines are arranged on both sides of the moving direction.

(Function) When exchanging the molds set in each of the plurality of molding machines with a new mold, input the mold number etc. of the mold to be exchanged and start the mold transfer machine. A moves to the mold storage shelf H side by driving the first drive device I, and transfers a plurality of new molds to be set in the plurality of molding machines from the storage shelf H to the second molding machine. and a third drive device, the items are taken out and stored on each shelf 22 of the shelf frame 2. At this time, the molds are transferred to each shelf 22 of the shelf frame 2 in accordance with the arrangement order of the molding machines. Note that the shelf frame 2 must have at least one
This results in more than one empty shelf. After being stored in this manner, the mold transfer machines A are sequentially moved by the drive of the drive device to positions facing the plurality of molding machines in accordance with the order in which they were transferred to the respective shelves 2. The molds set in the molding machine on the stand and the plurality of new molds stored in each of the shelves 22 are replaced one after another in the following manner.

First, among the plurality of molding machines, the transfer machine A is stopped at a position opposite to a specific molding machine corresponding to the mold transferred to the uppermost or lower shelf 22 of the shelf frame 2, The mold support 4 supported on the base 3 is moved toward the specific molding base by the second drive device, and the mold set in the molding machine is taken out onto the support 4. It is. After the removal is completed, the support stand 4 is moved back onto the base 3, and then the base 3 is moved to the bottom or top of the shelves 22 of the shelf frame 2 by the third drive device. The supporting stand 4 is moved up and down to a position facing the empty shelf 22, and at this opposing position, the support stand 4 is moved to the empty shelf 22 side by the second drive device, and the specified position on the support stand 4 is moved to the shelf 22. Stores the molds taken out from the molding machine. After the molds taken out from a specific molding machine are stored in the empty shelf 22,
The base 3 is again connected to the second and third drive devices,
Accordingly, the mold is moved to the shelf 22 storing a new mold to be set in the specific molding machine and stopped. Then, the mold is taken out by the drive of the second drive device, and then, by the drive of the third drive device, the support table 4 is raised and lowered to a position opposite to the specific molding machine from which the mold was taken out first. Then, the removed mold is moved to the specific molding machine by the second drive device.

In this way, the molds of a plurality of molding machines are replaced one after another according to the arrangement of the molding machines. After the exchange is completed, the mold transfer machine A moves from the position facing the plurality of molding machines to the mold storage shelf H side by the drive of the first drive device.
The plurality of molds stored in the shelf 22 of the shelf frame 2 are moved to the mold storage shelf H by the driving of the second drive device and the third drive device according to the arrangement order of the molding machines. It will then be transferred.

Such mold replacement work is performed by the first, second,
This is automatically controlled by a third drive device, controller C, which performs all drive control.

As described above, in the automatic mold changing device that performs the work of exchanging the mold set in each of a plurality of molding machines with a new mold, at least one more shelf 22 than the number of molding machines is installed. Motsu mold transfer machine A
One reciprocating movement by the first drive device I between a plurality of molding machines and a mold storage shelf H having a number of shelves greater than the number of molding machines; and the mold transfer device A. The exchange of multiple molds is performed by driving the base 3 and the support stand 4 prepared for the process by the second and third driving devices, and by the controller controlling the driving of the first, second, and third driving devices. This can be done sequentially and automatically and all at once, which shortens the mold change time of each of the plurality of molding machines, significantly shortens the operation stop time of each of the molding machines, and increases productivity. A plurality of new molds are placed on the shelf 22 of the mold transfer machine A according to the arrangement order of the plurality of molding machines.
The molds can be exchanged by storing them in an orderly manner.

Therefore, compared to the case where the molds are stored in random order, the moving distance of the mold transfer machine A can be reduced, and automatic control by the controller C can be simplified.

Further, on one side in the moving direction of the mold transfer machine A that moves along the arrangement direction of the molding machine, a shelf frame 2 is erected on the side away from the molding machine, and the molding machine is placed on the shelf frame 2. A base 3 having a mold support base 4 is disposed on the machine side, and the mold support base 4 is attached to the base 3 in a direction perpendicular to the moving direction of the mold transfer machine A. By supporting the mold support stand 4 so as to be movable in the direction of distance from the molding machine, the mold support stand 4 is moved toward the molding machine side to replace the mold. It is possible to easily replace the molds of a plurality of molding machines installed, and the shelf frame 2 is erected on one side in the direction of movement of the mold transfer machine A that moves along the direction in which the molding machines are installed. A base 3 having a mold support 4 is disposed on the other side, and the mold support 4 can be moved to the base 3 in the same direction as the mold transfer A. while supporting the mold support 4
By providing a turntable 5 at , the turntable 5 on which a mold is placed is moved outward in the direction of movement of the mold transfer machine with respect to the base 3 that movably supports the turntable 5. Since the molds are replaced by moving and rotating the turntable 5, molds can be easily replaced in a plurality of molding machines arranged on both sides of the mold transfer machine A in the direction of movement. .

(Example) The present invention will be described below with reference to Figures 1 to 9 showing examples thereof.
This will be explained based on the diagram.

FIG. 2 shows the arrangement of a plurality of molding machines P ₁ to _{P 4} and a mold storage shelf H.
In addition to arranging _{the molding machines P 1 to} P ₄ in parallel in the horizontal direction, the metal molding machine is equipped with a large number of unit storage shelves T having the number of shelves equal to the number of molding machines P at the side positions of each of these molding machines P 1 to P ₄ . While a mold storage shelf H is arranged, a rail R is laid between this mold storage shelf H and each molding machine P, and a mold transfer machine A is run along this rail R to transfer the mold. The molds M set in the molding machines P via the mounting machine A are exchanged with the molds M in the storage shelf H.

As shown in FIGS. 4 and 5, the mold transfer machine A includes a movable trolley 1 provided with a plurality of running wheels 11 at the bottom thereof that roll along the respective rails R, and the movable trolley 1. a shelf frame 2 erected on the rear side facing each of the molding machines P on the upper part thereof; and a base supported vertically and lowerably on the front side opposite to the molding machines P on the opposite side of the shelf frame 2. 3, and a support stand 4 supported on the upper part of the base stand 3 so as to be movable in the front and rear direction.

Furthermore, a first drive device I provided with a motor 12 for driving the running wheels 11 is provided at a lower position of the moving trolley 1, and the motor 12 drives the running wheels 11.
to move the movable cart 1 to each of the molding machines P.
and the mold storage shelf H.

In addition, the shelf frame 2 has a plurality of columns 21 erected on the upper part of the movable cart 1, and a plurality of shelves 22 extending in the front and back direction are hung between the columns 21 at equal intervals in the vertical direction. The respective molds M are stored on the shelf 22.

Each shelf 22 of the shelf frame 2 is formed at least one more than the number of molding machines P. For example, as shown in FIG. When the molds M to be set in the molding machines P are arranged in parallel, the respective shelves 22 are provided between the respective pillars 21 in five stages above and below. Each unit of the storage shelf H is taken out from the storage shelf T and each shelf 2 is
2, there is at least one blank shelf 2
2 is formed, and the mold M taken out from the molding machine P can be stored in this blank shelf 22.

Furthermore, a plurality of supports 31 for raising and lowering the base 3 are erected at the front position of the shelf frame 2 on the upper side of the movable trolley 1.
Guide plates 32 extending in the vertical direction are attached to both sides in the lateral direction, and guide rollers 33 that come into contact with the support columns 31 are provided on each guide plate 32.
is guided vertically along each of the pillars 31.

The base 3 is moved up and down along each of the supports 31 by a lifting device 6 driven by a third drive device provided at the top of the transfer machine A, and details are shown in FIG. , the third
As a drive device, a motor 51 and a speed reducer 52 capable of forward and reverse rotation are used, and both of these are connected to the support column 31.
It is attached to a support plate 53 provided on the top of the.

Further, the lifting device 6 is wound around first to third sprockets 61, 62, 63, each of these sprockets 61, 62, 63, and the drive sprocket 52a of the reduction gear 52, and one end in the length direction is connected to the base. It consists of two chains 64 and 65 connected to both lateral ends of the base 3, and the first sprocket 6
1 is rotatably supported on both sides of the lower part of the reducer 52 on the support plate 53, and the second and third sprockets 62, 63 are connected to the shelf frame 2.
The upper frame 34 is installed between the upper parts of each support 21 and each support 31 that guides the base 3 up and down, and each rotates to a position opposite to both lateral ends of the base 3 in the upper frame 34. The respective sprockets 61, 62 and 61, 62, 6
The lower end portions of the chains 64, 65, which are hung around the base 3, are respectively connected to both end portions of the base 3 in the lateral direction.

In this way, by driving the speed reducer 52 interlocked with the motor 51, the sprockets 61, 6
2, 63 are rotated forward and backward, and the chains 64,
The base 3 is raised and lowered in the vertical direction along each support column 31 via the support 65.

The support stand 4, which is provided on the upper part of the base stand 3 so as to be movable back and forth, has two
It consists of two upper and lower slide members 41 and 42, and each slide member 41 and 42 is connected to the base 3.
By moving the molds M in the front and rear directions from
2 and set it in each molding machine P.

Each of the slide members 41 and 42 is connected to the base 3.
A second drive device consisting of a motor 43 provided at the bottom allows movement in the front and rear directions.

Further, each of the molding machines P is provided with a hydraulic cylinder 7 at a rear position facing the set position S of the mold M, and the mold M is pressed from the set position S by the operation of the cylinder 7. , the mold M is taken out to the outside.

Furthermore, the mold setting position S in each molding machine P
A support stand 4 supported by the base 3 at the front part of
A pair of protruding rods 8, 8 with an interval slightly wider than the widthwise length of the support base 4 are respectively protrudingly provided at the opposing portions, and a plurality of rollers 81 are provided on the upper side of each of these protruding rods 8. Support each freely to rotate,
The hydraulic cylinder 7
Then, the mold M taken out from the mold set position S of the molding machine P is guided onto the support table 4.

In addition, the mold storage shelf H shown in FIGS. 2 and 3 is made by connecting a large number of unit storage shelves T with a connecting device such as a chain,
It is possible to move around on the endless rail ER,
The endless rail ER is disposed perpendicularly to the length direction of the running rail R of the mold transfer machine A, and its turning position is opposed to the running rail R. Rail ER is the traveling rail R
It may be placed along the shelf, or it may be a fixed shelf that can be rotated.

Further, when each of the unit storage shelves T is rotated, a sprocket that engages with the connecting member is provided at each rotating portion, and one of these sprockets is driven by a motor 71 serving as a fourth drive device.

Further, in the embodiment, the base 3 for supporting the support stand 4 is provided on the front side of the transfer machine A facing the molding machine P, and the shelf frame 2 is provided on the other side of the movable trolley 1. However, the base 3 can also be provided on both sides of the shelf frame 2, and in this case, the molding machines P may be arranged on both sides of the rail R. When molding various products using the molding machines P, one mold transfer machine A can be used to replace the molds M used in each of the molding machines P.

In addition, the automatic mold changing device configured as above,
This is done by controlling the drives of the first to fourth drive devices.

For convenience of explanation, the first drive device will be referred to as the trolley traveling motor 12, the second drive device will be referred to as the support slide motor 43, the third drive device will be referred to as the base lifting motor 51, and the fourth drive device will be referred to as the rack. It is called a rotation motor 71.

Therefore, the traveling rail R is provided with a limit switch for detecting the position of the transfer machine A.
_L1 ... are respectively provided at the exchange positions corresponding to the molding machines _P1 to _P4 , the standby position shown in FIG. 2, and the transfer position corresponding to the turning section of the storage shelf H. In addition, the transfer machine A includes a limit switch for detecting the position of the support base 4.
L ₂ ... are provided corresponding to the forward position, the reverse position, and the intermediate position.

Furthermore, the vertical position of the base 3 and the storage shelf H
The position of each unit storage shelf T in is detected by rotary encoders RE ₁ and RE ₂ provided in the drive system of each of the motors 51 and 71.

The drive control of each of the motors 12, 43, 51, 71 is performed by the controller C shown in FIG. An input device consisting of a card reader CR or other keyboard with a numeric keypad is connected to each of the limit switches _L1 ..., _L2 ... and rotary encoders _RE1 , _RE2 , and the output circuit 73 on the output side is , a drive control circuit DV ₁ for the trolley running motor 12, a drive control circuit DV 2 for the support slide motor 43, a drive control circuit DV ₃ for the base lifting motor 51, and a drive control circuit DV ₃ for the rack rotation motor 71. The drive control circuit DV ₄ is connected to it. The controller C also controls the limit switches L ₁ and L ₂ and the rotary encoder by the arithmetic circuit 74 of its central processing unit.
Based on the data from RE ₁ and RE ₂ , the transfer machine A,
A current position detection circuit 75 is provided to detect the current positions of the support stand 4, the base 3, and the unit storage shelf T.

Further, each of the motors 12, 43, 51, 7 is connected to each output side of each of the drive circuits _DV1 to _DV4 .
1 is connected.

Next, the operation of the automatic mold changing device constructed as described above will be explained according to the flowchart shown in FIG.

First, a magnetic card corresponding to a new mold M to be replaced is inserted into the magnetic card reader CR, and the mold number is input. (Step 101) After the mold number has been read by the magnetic card reader CR (Step 102), a startup operation is performed (Step 103). Step 104) The mold M corresponding to the mold number is
A specific unit storage shelf T stored in accordance with the arrangement order of the forming bases P ₁ to _{P 4} is sent to a transfer position to the transfer machine A and stopped. (Step 105) When the unit storage shelf T is at the transfer position during the startup operation, the storage shelf H does not rotate. (Step 106) After the unit storage shelf T is located at the transfer position, the transfer machine A is moved from the standby position to the transfer position (Step 107), and reaches this transfer position (Step 108). ) After that, the molds M stored in the unit storage shelves T are transferred to each shelf 22 of the transfer machine A in accordance with the arrangement order of the forming machines P ₁ to _{P 4} . (Step 109) The order of movement to each shelf 22 is determined by the molding machine.
Corresponding to P ₁ to _{P 4} , it is carried out either from the bottom to the top or from the top to the bottom, and the blank shelf 22
should be at the bottom or top.

In other words, if it is more convenient to start the replacement work from molding machine P ₁ , and if the molding machines P ₁ to _{P 4} are to be transferred from the bottom to the top in accordance with the arrangement order, the bottom shelf should be a blank shelf. In addition, when transferring from the top to the bottom, the top shelf is left blank.

Also, if it is more convenient to start the replacement work from the molding machine _P4 , the position of the blank shelf is reversed.

Furthermore, the order in which the molds M are stored in each shelf of the unit storage shelf T is done in accordance with the arrangement order of the molding machines _P1 to _P4 , and corresponds to the procedure of the replacement work. It is stored from the bottom to the top or from the top to the bottom. By doing so, the transfer to the transfer machine A can be carried out efficiently. The order in which the molds M are stored in the unit storage shelf T and the order in which they are transferred to the transfer machine A is determined by drive control of the support slide motor 43 and the base lift motor 51 in the transfer machine A. , it can be executed as programmed in advance.

Next, after the mold transfer to the transfer machine A is completed as described below (step 110), the transfer machine A moves to the molding machine along the rail R (step 111), and at the same time The storage shelf H rotates around (step 112), and after the unit storage shelf T corresponding to the mold number of the old mold reaches the transfer position, it stops.
(Step 113) Furthermore, if it is set to start the replacement from the molding machine _P1 based on the order of the molds on each shelf 22 of the transfer machine A and the blank shelves, the transfer machine A It stops at the exchange position corresponding to ₁ .
(Step 114) After reaching this replacement position, take out the old mold set in the molding machine _P1 , store it in a blank shelf provided at the bottom stage of the transfer machine A, and place it on the second stage. The new mold transferred to the forming machine
It will be transferred to _P1 . (Step 115) To replace this mold, first the base lifting motor 51
After positioning the base 3 so that the support base 4 is slightly lower than the upper surface of the roller 81 of the protruding rod 8 protruding forward of the molding machine _P1 , the support base 4 is The support stand is moved toward the molding machine _P1 side via the motor 43 for sliding, and then the old mold M set at the set position S of the molding machine _P1 is moved from the rear side to the molding machine P1 side. The mold M on each of the projecting rods 8 is pushed by the hydraulic cylinder 7 and taken out through the rollers 81 of each of the projecting rods 8 to the outside, and then the support base 4 is moved to the upper side. It is placed on the support stand 4.

and the support base 4 on which the mold M is placed.
is moved back onto the base 3 by the drive of the motor 43, and the base 3 is moved onto the shelf 22 provided on the shelf frame 2 via the lift device 6 by driving the base lifting motor 51. After raising and lowering the support base 4 to a position slightly higher than the position opposite to the blank shelf 22 in which no new mold M is stored, the support base 4 is moved to the blank shelf 22 via the motor 43 at this position. 22
By moving the mold M to the side and then lowering the support stand 4, the mold M taken out on the support stand 4 is stored in the blank shelf 22.

Furthermore, after storing the mold M taken out from the molding machine P in the blank shelf 22 as described above,
The base 3 is raised and lowered by the motor 51 to the position of the second shelf 22 of the shelves 22 in which the new mold M to be set in the molding machine _P1 is stored;
After that, by moving the support stand 4 to the lower position of the shelf 22 via the support stand slide motor 43 and raising the support stand 4,
A new mold M stored in the shelf 22 is placed on this support stand 4, and then the base 3 is moved by the motor 51 to a position opposite to the mold set position S of the molding machine _P1 . The support table 4 is moved to the side of each of the projecting rods 8 by the motor 43 by lifting and lowering, and the new mold M on the support table 4 is moved through the rollers 81 of the projecting rods 8 to form the new mold M. The mold is set at the mold setting position S of the machine P.

After replacing the mold of molding machine _P1 as described above (step 116), the transfer machine A is transferred to the next molding machine.
It moves to the _P2 side (step 117) and stops at the exchange position corresponding to this molding machine _P2 . (Step 118) Thereafter, the molds are replaced in the same manner as in the molding machine _P1 (step 119), and the molds in the molding machines _P3 and _P4 are replaced in the same manner. (Steps 120 to 128) After completing the mold exchange of all the molding machines _P1 to _P4 , the transfer/loading machine A moves to the transfer position with the storage shelf H (Step 129). The movement stops when the transfer position is reached. (step
130) At this time, it is checked whether the rotation of the storage shelf H is completed (step 131), and if the unit storage shelf T that stores the old molds is located at the transfer position and stopped, the above-mentioned The old mold is transferred from the transfer machine A to the unit storage shelf T. (Step 132) When this mold transfer is completed, (Step 132)
133), the transfer machine A returns to the standby position (step
134) It stops at this standby position. (Step 135) As explained above, the movement of the mold transfer machine A to the mold transfer position, the up and down operation of the base 3, and the movement operation of the support table 4 in the front and back direction are performed. By using the controller C that controls the drive of each of the motors 12, 43, and 51 described above, the replacement work of the plurality of molds M can be performed automatically and efficiently in a short time.

In addition, when a plurality of molding machines P ₁ to _{P 8} are arranged along both sides of the rail R as shown in FIG. 8, as shown in FIGS.
A shelf frame 2 is provided on one side in the front and rear direction of the moving direction of the mobile cart 1.
is erected, a base 3 having a mold support 4 is disposed on the other side, and the mold support 4 is moved on the base 3 in the same direction as the moving direction of the movable trolley 1. We support it as much as possible. The mold support base 4 is composed of two upper and lower slide members 41 and 42 that are stacked one on top of the other.
1 is provided with a turntable 5 and a driving motor 5M for rotating the turntable 5. On the other hand, in the front part of the mold setting position S in each of the molding machines _P1 to _P8 , the part opposite to the turntable 5 when the support stand 4 moves to the opposite side of the shelf frame 2, A pair of protruding rods 8, 8 with a spacing slightly wider than the width of the support base 4 are provided so as to freely move forward and backward so that they do not get in the way when the mold transfer machine A is moved.

Further, a limit switch for detecting the rotational position of the turntable 5 is provided on the upper slide member 41.
L _{3 .} . . is provided in the input circuit ₇₂ of the controller C in FIG.
..., and the output circuit 73 is connected to the turntable 5.
By additionally connecting drive control circuits that control the drive motors 5M, the molds can be automatically exchanged under the control of the controller C. In this case, in steps (115), (119), (122), and (127) of the flowchart in FIG.
By controlling the rotation of the turntable 5, the molding machine
This makes it possible to exchange molds with P ₁ to _{P 4} or molding machines P ₅ to P ₈ . For example, in step (115), when replacing the mold with the molding machine _P1 , first slide the upper slide member 41 outward from the base 3 as far as it will go, and move the turntable 5 to the molding machine _P1 side. Rotate. Then, the pair of protrusions 8, 8 are advanced from the molding machine P ₁ to the turntable 5 side, and the mold M of the molding machine P ₁ is moved onto the turntable 5. After the mold M is transferred to the turntable 5, the turntable 5 is rotated and the turntable 5 is moved back on the base 3, so that the mold M is taken into the base 3. be. Then, as described above, the mold M taken into the base 3 by the support slide motor 43 and the base lift motor 51 is stored in the blank shelf 22, and is replaced with the molding machine _P1. The mold M is taken out from the shelf frame 2 to the turntable 5, and the mold M is placed on the upper slide member 41 again.
Slide it fully outward from the base 3,
The turntable 5 is rotated to the molding machine P ₁ side, and the mold M to be replaced is placed between the pair of protrusions 8, 8.
to the molding machine _P1 , and after the movement is completed, the turntable 5 is rotated (step
116), the pair of protrusions 8, 8 are moved back so that they do not interfere with the movement of the mold transfer machine A, and the mold is transferred to the molding machine _P2 that will be replaced next. The mold transfer machine A is moved to the transfer position. (Step 117) When replacing the mold with the molding machine _P5 , slide the upper slide member 41 outward from the base 3 as far as it will go, and replace the turntable 5 with the molding machine.
P ₅ side to take out the mold M from the molding machine P ₅ to the turntable 3, or to take out a new mold M from the shelf frame 2 to the turntable 5. The molding machine P5 is then moved from there to the molding machine _P5 .

In this way, even if the molding machines P ₁ to P ₄ and P ₅ to P ₈ are respectively disposed on both sides of the mold transfer/mounting station A in the moving direction, the replacement work of multiple molds M can be automatically performed. Moreover, it can be done efficiently and in a short time.

(Effects of the Invention) As explained above, the automatic exchange device for multiple molds according to the present invention has a mold storage shelf H having a number of shelves greater than the number of molding machines, and a mold storage shelf H between the molding machines and the mold storage shelf H. A shelf frame 2 having at least one shelf 22 more than the number of molding machines is erected on a movable trolley 1 that can reciprocate between molding machines. a mold transfer machine A that supports a base 3 that is movably supported in the front and rear directions so as to be movable up and down; , a second drive device for moving the mold support base 4, a third drive device for raising and lowering the base 3, and a controller C for driving and controlling each of these drive devices. Therefore, the work of replacing the molds set in the plurality of molding machines with new molds requires repeating the movement of the mold transfer machine A to and from the mold storage shelf T a plurality of times. It can be done automatically and all at once, reducing the time required to replace the molds of the plurality of molding machines, and reducing the downtime required when replacing the molds of each molding machine, increasing productivity. Furthermore, depending on the arrangement order of the plurality of molding machines, new molds can be placed on the shelf 22 of the mold transfer machine A.
The molds can be exchanged by storing the molds in an orderly manner, and the amount of movement of the mold transfer machine A can be reduced compared to the case where the molds are stored in random order. Automatic control in automatic replacement work can be simplified.

Further, on one side in the moving direction of the mold transfer machine A that moves along the arrangement direction of the molding machine, a shelf frame 2 is erected on the side away from the molding machine, and the molding machine is placed on this shelf frame 2. A base 3 having a mold support base 4 is disposed on the machine side, and the mold support base 4 is attached to the base 3 in a direction perpendicular to the moving direction of the mold transfer machine A. By supporting the molding machine so that it can move in the direction of distance and distance, when the molding machine is disposed along one side of the mold transfer machine A in the moving direction, molds can be exchanged very easily. In addition, a shelf frame 2 is erected on one side in the moving direction of the mold transfer machine A that moves along the installation direction of the molding machine, and a base 3 with a mold support stand 4 is installed on the other side. At the same time, the mold support 4 is supported on the base 3 so as to be movable in the same direction as the moving direction of the mold transfer machine A, and a turntable 5 is mounted on the mold support 4. By providing this, even when the molding machines are disposed along both sides of the mold transfer machine A in the moving direction, molds can be exchanged freely and easily.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the control of the drive system of the automatic exchange device of the present invention, FIG. 2 is a schematic plan layout diagram showing one embodiment of the automatic exchange device of the present invention, and FIG. 3 is a schematic side view of the same. Figure 4 is an explanatory diagram showing the relationship between the mold transfer machine and the molding machine, Figure 5 is a side view of the mold transfer machine,
Figure 6 is a plan view of Figure 4, Figure 7a
and b are flowcharts of the embodiment shown in FIGS. 2 to 6, FIG. 8 is a layout diagram showing another arrangement position of the molding machine, and FIG. 9 is a mold transfer system equipped with a support stand with turntable. It is a front view of a loading machine. A...Mold transfer machine, 2...Shelf frame, 22...Shelf,
3... base, 4... support stand, 5... turntable,... first drive device,... second drive device,
...Third drive device, C...Controller, H...
...Mold storage shelf, P...Molding machine, M...Mold.

Claims (1)

[Scope of Claims] 1. An exchange device for exchanging a plurality of molds used in a plurality of molding machines, which includes a mold storage shelf H having a number of shelves equal to or more than the number of molding machines, On the movable trolley 1 that can reciprocate between the mold storage shelf H,
A shelf frame 2 having at least one shelf 22 more than the number of molding machines is erected, and on one side of the shelf frame 2 in the front-rear direction, a base 3 supporting a mold support 4 so as to be movable in the front-rear direction is lifted and lowered. The mold transfer machine A includes a first drive unit I for reciprocating the movable cart 1, and a first drive unit I for moving the mold support base 4. 2 drive device, and a third drive device that raises and lowers the base 3, and a controller C that drives and controls each of these drive devices. . 2. On one side in the moving direction of the mold transfer machine A that moves along the installation direction of the molding machine, a shelf frame 2 is erected on the side away from the molding machine, and the molding machine is attached to the shelf frame 2. A base 3 having a mold support 4 on its side is disposed, and the mold support 4 is placed on the base 3 in a direction perpendicular to the moving direction of the mold transfer machine A. 2. The automatic exchange device for multiple molds according to claim 1, wherein the device is supported so as to be movable in directions near and far from the machine. 3. A shelf frame 2 is erected on one side in the moving direction of the mold transfer machine A that moves along the installation direction of the molding machine, and a base 3 with a mold support stand 4 is installed on the other side. In addition, the mold support 4 is supported on the base 3 so as to be movable in the same direction as the moving direction of the mold transfer machine A, and a turntable 5 is provided on the mold support 4. The automatic exchange device for multiple molds according to claim 1.