JP6703769B2 - Mold reversal system - Google Patents

Description

The present invention relates to a mold reversing system capable of receiving a mold and reversing it by 180°.

Molds used in press machines, etc. are used as a mold set that combines an upper mold and a lower mold.When repairing this mold, convey the mold set to a prescribed repair location and use an overhead crane or the like. The upper die is lifted up by 180° after the upper die is lifted up to separate the upper die from the lower die, and the upper die and the lower die are repaired. In this case, it takes a lot of time and labor.

Therefore, various mold reversing devices and mold separating and reversing devices have been proposed.
In the die set reversing device (FIGS. 4 and 5) disclosed in Patent Document 1, a pair of columns is equipped with a pair of rams capable of moving up and down, and a rotating frame for attaching a mold to the pair of rams is rotated. It is possible to reverse the mold by freely attaching the mold and attaching it to the rotary frame, and then raising the rotary frame and rotating it.

In the mold separating and reversing device disclosed in Patent Document 2, out of the four columns, two pairs of columns each have a vertically movable body, and the pair of vertically movable bodies is provided with the vertically movable body. The movable arm is connected to the rotating shaft, the mounting board that can fix the mold is connected to the tips of the pair of movable arms, the mold set is carried into the lower side of this mounting board, and then the upper mold is mounted by the fixing device. With the substrate fixed, the pair of lifting movable bodies is raised, the lower mold is carried out, and then the rotating shaft is rotated, thereby reversing the mounting substrate and the upper mold by 180°.

JP, A, 5-200545 JP-A-5-293632

The mold reversing device of Patent Document 1 can attach and reverse one mold (for example, an upper mold). However, a mold set in which an upper mold and a lower mold are combined is used as an upper mold and a lower mold. It does not have the function of separating into.

The mold reversing device of Patent Document 2 is capable of reversing the upper mold after separating the mold set into an upper mold and a lower mold. However, this mold reversing device has a complicated structure including four columns, a pair of lifting movable bodies, a mounting substrate, a fixing device, and an elevating means for elevating the elevating movable bodies. Get expensive. Moreover, since the fixing device has a structure for fixing the upper mold by a manual operation, the upper mold cannot be efficiently fixed, and it is difficult to improve work efficiency.

As described above, since the conventional mold reversing device is provided with the means for receiving the mold set from the outside and fixing and supporting it, the mold reversing device is complicated and large in size.
Further, in order to fix the received mold to the reversing device, a screw type clamp, a fluid pressure cylinder type clamp or a holder was adopted, which made the structure complicated and required a long fixing time.

It is an object of the present invention to provide a mold reversing system for loading and inverting a mold, which can easily and efficiently fix a mold received from the outside, and can efficiently perform the mold reversal. It is an object of the present invention to provide a mold reversal system that can be manufactured and can reduce the manufacturing cost.

The mold reversing system according to claim 1, wherein the mold reversing system includes a mold reversing device capable of receiving a mold and reversing by 180°, and a mold carrier, wherein the mold reversing device is separated by a predetermined distance. A base having a pair of arc-shaped rotor support portions and a pair of parallel rotary plates rotatably supported by the rotor support portions and connected by a plurality of connecting members. A rotating body including the rotating body, a rotation drive mechanism capable of rotating the rotating body, a horizontal top plate fixedly provided on the upper side of the rotating body, and a gold plate that is vertically movable below the top plate. A mold holding means capable of holding a mold, and a mold raising/lowering means mounted on the top plate and capable of vertically moving the mold holding means,
The mold holding means includes a holding plate arranged below the top plate so as to be able to move up and down, and a magnet clamp fixed to the holding plate, and the mold lifting means is mounted on the top plate to provide a piston. The die transfer is provided with a vertically-moving hydraulic cylinder for vertical movement in which a rod is connected to a holding plate, and a plurality of guide rods whose lower end is fixed to the holding plate and which is guided by a guide portion on the top plate side. The dolly is characterized in that it can be inserted into a mold receiving space between the pair of rotating plates in a horizontal direction orthogonal to the rotation axis of the rotating body.

The mold reversing system according to claim 2, wherein the mold reversing system has a mold reversing device capable of receiving a mold and reversing by 180° and a mold carrier, wherein the mold reversing device is separated by a predetermined distance. A base having a pair of arc-shaped rotor support portions, and a pair of parallel rotary plates rotatably supported by the pair of rotor support portions and connected by a plurality of connecting members. A rotating body that includes the rotating body, a rotation drive mechanism that can drive the rotating body to rotate, a horizontal top plate that is fixedly provided on the top of the rotating body, and a mold that is arranged on the lower surface side of the top plate to hold a mold With possible mold holding means,
The mold holding means includes a magnet clamp fixed to a lower surface of a top plate, and the mold carrier is provided in a mold receiving space between the pair of rotating plates in a horizontal direction orthogonal to a rotation axis of the rotating body. It is characterized in that it has a carriage raising/lowering means configured to be capable of entering from above and capable of raising/lowering the die carrier truck together with the die or independently.

According to a third aspect of the present invention, in the first or second aspect, the rotary drive mechanism is fixed to an outer surface of one of the rotary plates, and has a pair of semicircular pin holding plates opposed to each other with a predetermined gap, A plurality of pins which are fixed in the vicinity of the outer circumference of these pin holding plates at predetermined small intervals in the circumferential direction and which are parallel to the rotation axis, and a plurality of pins which are provided at one outer peripheral side of the pair of pin holding plates. It is characterized in that it is provided with a sprocket to be engaged and a drive motor capable of rotationally driving this sprocket.

According to a fourth aspect of the present invention, in the first or second aspect, the rotating body supporting portion has a plurality of idle rollers.

According to a fifth aspect of the present invention, in the second aspect, the carriage lifting/lowering means includes a plurality of lifting/lowering fluid pressure cylinders which are mounted on the die carrier carriage so that the piston rods can abut the carriage traveling rails. I am trying.

According to a sixth aspect of the invention, in the first or second aspect of the invention, the magnet clamp has a plurality of magnet units arranged in a plurality of parallel rows including a plurality of magnet units in each row, and the direction of the plurality of rows. Are oriented in a direction intersecting a direction parallel to the rotation axis of the rotating body.

According to a seventh aspect of the present invention, in the first or second aspect of the present invention, a working space for an operator to enter and work can be formed between the mold carrier and the mold reversing device. It has a feature.

According to an eighth aspect of the invention, in the first or second aspect of the invention, the rotating body is formed by laminating a plurality of rotating plates, and the diameter of the rotating body is larger than the width of a steel plate material having a standard width, The rotating plate is configured by abutting lines of a main plate having a width equal to the standard width and an end plate having a width smaller than the main plate, and the abutting lines of the plurality of rotating plates have different phases, respectively. It is characterized by being set.

According to a ninth aspect of the present invention, there is provided a die reversing system according to the second aspect, wherein when the carriage raising/lowering means raises the die carrier and the die to bring the die into close contact with a magnet clamp. It is characterized in that it is provided with a contact confirmation means capable of confirming that the contact has occurred.

According to the invention of claim 1, the mold set placed on the mold carrier is carried into the mold receiving space between the pair of rotating plates, and the mold holding means is lowered by the mold lifting means to move the upper mold. After holding it, lift the upper mold, then carry out the lower mold by the mold carrier and rotate the rotating body and the upper mold by 180°, and carry out the inverted upper mold from the mold receiving space to the outside. can do. In this way, the mold set can be separated into an upper mold and a lower mold, and the upper mold can be inverted. However, it is also possible to carry in the upper mold or the lower mold independently and turn them over.

Since the die reversing device has a structure in which the rotating body is rotatably supported by the pair of rotating body supporting portions of the base and the rotating body and the die are rotated by using the rotation drive mechanism, the die is rotated. The structure for doing this could be simplified. The structure for holding the mold by the mold holding means that can be raised and lowered by the mold raising and lowering means can simplify the structure for holding the mold. Therefore, the manufacturing cost of the mold reversal system could be reduced.

In particular, since the mold holding means is configured to attract the mold with a magnet clamp, the structure is simplified and the mold can be held efficiently. Since the mold lifting means is composed of the fluid pressure cylinder and the plurality of guide rods, it is possible to realize the mold lifting means that operates smoothly with a simple structure.

In addition, because it can be introduced into the mold receiving space and inverted while it is still on the mold carrier, there is no need to transfer the mold set to the mold reversing device, which simplifies the structure of the mold reversing device and downsizes it. Therefore, the mold reversal can be efficiently performed.

After the mold set placed on the mold carrier is carried into the mold receiving space, the mold holding means is lowered, held, the upper mold is raised, the lower mold is carried out, the rotating body and the upper mold are rotated by 180°, and the upper mold is moved. Since it is possible to efficiently carry out a series of operations for carrying out, a mold reversing system having excellent productivity can be obtained.

According to the second aspect of the present invention, since the mold carrier has the carrier raising/lowering means capable of lifting and lowering the mold carrier together with the mold or independently, the mold set mounted on the mold carrier is received by the mold. After loading into the space, by raising the mold set together with the mold carrier by the carriage lifting means, the mold is transferred to the mold holding means, and then the lower mold is carried out by the mold carrier and then the lower mold is carried out. As in the case of 1, the upper mold can be reversed by 180° by the mold reversing device.
Since the rotating body is not provided with the mold lifting means, the rotating body can be made lighter. In addition, the same effect as that of the first aspect can be obtained.

According to the invention of claim 3, the rotary drive mechanism includes a pair of semicircular pin holding plates, a plurality of pins fixed to the outer peripheral vicinity thereof, and a sprocket that engages with some of these pins. And a drive motor capable of rotationally driving this sprocket, and can be easily manufactured at low cost.

According to the invention of claim 4, the rotating body supporting portion can have a simple structure having a plurality of idle rollers.

According to the fifth aspect of the present invention, since the carriage elevating means has a plurality of lifting hydraulic cylinders that are mounted on the die transport carriage and the piston rods can abut the carriage traveling rails, the piston rods are extended. Since it is configured to be brought into contact with the rail for traveling the carriage, it is possible to stably move up and down the die transfer carriage while maintaining the horizontal posture.Therefore, the carriage plate elevating means with a simple structure and excellent reliability should be provided. You can

According to the invention of claim 6, even when the lattice-shaped ribs are formed on the attracted surface of the die to be attracted by the magnet clamp, a part of the plurality of magnet units constituting the magnet clamp is included in the magnet unit. Can adsorb the above ribs.

According to the invention of claim 7, since it is possible to form a work space for the worker to enter and work between the mold carrier and the mold reversing device, the worker who enters the work space It is possible to perform slinging work etc. when suspending the inverted upper mold with a crane.

According to the invention of claim 8, since the rotary plate of the rotary body can be manufactured by using the steel plate material having the standard width, the manufacturing cost of the rotary body can be reduced.

According to the invention of claim 9, since the die transfer carriage and the die confirming means for adhering the die to the magnet clamp for adhering the die to the magnet clamp are provided, the magnet is confirmed before the magnet is attached. It is possible to prevent the generation of collision noise and impact by operating the clamp by suction.

1 is a perspective view of a mold reversing device according to a first embodiment of the present invention. It is a front view of a mold reversal system. It is a right view of a metal mold reversal system. It is an enlarged front view of a substrate and a free rotation roller. It is operation|movement explanatory drawing of the 1st process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is operation|movement explanatory drawing of the 2nd process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is operation|movement explanatory drawing of the 3rd process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is operation|movement explanatory drawing of the 4th process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is a bottom view of a magnet clamp. It is a front view of the metal mold reversal system of Example 2. It is a right view of the metal mold reversal system of FIG. It is operation|movement explanatory drawing of the 1st process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is operation|movement explanatory drawing of the 2nd process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is operation|movement explanatory drawing of the 3rd process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is operation|movement explanatory drawing of the 4th process at the time of isolate|separating an upper mold from a lower mold and reversing it. It is a perspective view of a metal mold reversal system in the 4th process. It is a perspective view of a disk which constitutes a rotating plate of a rotating body. It is a side view of a rotating plate of a rotating body. FIG. 9 is a side view of a main part according to a third embodiment. It is a figure which shows the proximity switch of FIG. 19, and its peripheral structure.

Modes for carrying out the present invention will be described based on Examples.

The mold reversing system S of this embodiment is composed of a mold reversing device 1 and a mold carrier 70. First, the structure of the mold reversing device 1 and the mold carrier 70 will be described with reference to FIGS. 1 to 4, and then the operation of the mold reversing system S will be described with reference to FIGS. 5 to 8. .. 1 is a perspective view of the mold reversing device 1, FIG. 2 is a front view of the mold reversing system S, and FIG. 3 is a right side view of the mold reversing system S. Reference L indicates the left side and reference R indicates The right side is shown.

The mold reversing device 1 is a device capable of receiving a mold set D including an upper mold D1 and a lower mold D2, separating the upper mold D1 and reversing it by 180°. The mold reversing device 1 can receive a base 10, a rotating body 20 including a pair of rotating plates 20a and 20b, a rotation drive mechanism 30, and a mold carrier 70 on which a mold set D is mounted. It is provided with a mold receiving space 40, a top plate 50, a mold holding means 60 including a magnet clamp 61, and a mold lifting means 61 for moving the mold holding means 60 up and down.

First, the base 10 will be described.
The base 10 has a pair of arc-shaped rotating body support portions 11a and 11b at both end portions which are separated from each other by a predetermined distance in the left-right direction. The base 10 is formed by connecting a pair of left and right substrates 12a and 12b in a vertical posture by a base plate 13. The base plate 13 extends a predetermined length to the front of the mold reversing device 1. The rotating body supporting portions 11a and 11b are provided with a plurality of idler rollers 14 mounted at predetermined intervals in the vicinity of the arc-shaped upper ends of the substrates 12a and 12b.

Each of the substrates 12a and 12b has a structure in which two plate members are opposed to each other with a gap corresponding to the length of the idler roller 14 and are connected by a base plate 13, a plurality of bolts 15, and a plurality of roller shafts. The roller shafts 16 of the plurality of idler rollers 14 are supported at both ends by two plate members. The idling roller 14 is a roller with a flange so that the rotary plates 20a and 20b do not fall off from the roller 14, and the upper ends of the substrates 12a and 12b project from the upper surface of the idling roller 14 by a predetermined height.

Next, the rotating body 20 will be described.
The rotating body 20 has a structure in which a pair of parallel left and right rotating plates 20a and 20b rotatably supported by the pair of rotating body supporting portions 11a and 11b are connected by a plurality of connecting members.

As shown in FIG. 4, the left rotary plate 20a is, for example, four thin steel plates stacked in close contact with each other and connected by a plurality of pin members or the like, and the right rotary plate 20b is also the same. A supported portion 20p, which is a supported portion 20p and can be supported by the rotating body supporting portions 11a and 11b, is formed on the outer peripheral portions of the rotary plates 20a and 20b.

The plurality of connecting members include the upper six connecting rods 21 and the top plate 50 which is an upper connecting plate. The connecting rod 21 is a tie rod, and nuts 21a are screwed on both ends of the connecting rod 21 outside the rotary plates 20a and 20b. In order to allow the mold carrier 70 to enter the mold receiving space 40, no connecting member is provided in the middle and lower parts of the rotary plates 20a, 20b. The top plate 50 is horizontally arranged above the rotating body 20, and the top plate 50 is a thick plate member having a predetermined front-back width. The left end of the top plate 50 is fixed to the rotary plate 20a, and the right end of the top plate 50 is fixed to the rotary plate 20b.

The mold receiving space 40 between the pair of rotating plates 20a and 20b has a width and a height that can accommodate a mold carrier 70 carrying a mold set D of a normal size.
Since the pair of rotary plates 20a and 20b of the rotary body 20 are rotatably supported by the pair of rotary body supporting portions 11a and 11b, the rotary body 20 is rotatable about its rotation axis X. It is configured so that it can be rotated 180° counterclockwise from the state of FIG.

Next, the rotation drive mechanism 30 capable of rotationally driving the rotating body 20 will be described.
As shown in FIGS. 1 and 3, the rotary drive mechanism 30 includes a pair of pin holding plates 31, a plurality of pins 32, a sprocket 33, and a drive motor 34. The pair of pin holding plates 31 are opposed to each other with a predetermined gap therebetween and are connected by a plurality of pins 32, and the pair of pin holding plates 31 are arranged on the outer surface of the right rotary plate 20b with a predetermined space therebetween. It is fixed with a bolt 35 and a nut. The pin holding plate 31 has a semicircular shape, but is formed slightly larger than the semicircle.

The plurality of pins 32 are fixed in the vicinity of the outer circumference of these pin holding plates 31 at predetermined small intervals in the circumferential direction, and are arranged parallel to the rotation axis X.
The sprocket 33 is provided at one location on the outer peripheral side of the pair of pin holding plates 31 and engages with the plurality of pins 32. The drive motor 34 (electric motor with reduction gear) is capable of rotationally driving the sprocket 33, and by rotationally driving the sprocket 33, the rotary body 20 is driven via the plurality of pins 32 and the pair of pin holding plates 31. It is configured to be rotationally driven. The drive motor 34 is fixed on a mounting base 36 and is connected to a control drive unit (not shown).

Next, the mold holding means 60 and the mold lifting means 61 will be described.
As shown in FIGS. 1 and 2, the die holding means 60 holds the die (upper die D1) via a holding plate 65, which is arranged below the top plate 50 so as to be able to move up and down, and a magnet clamp 61. It is possible and is composed of a holding plate 65 and a magnet clamp 61 which is fixed to the lower surface of the holding plate 65 and can attract the upper die D1.

The magnet clamp 61 is fixed to the lower surface of the holding plate 65 and is arranged to be movable up and down together with the holding plate 65. The magnet clamp 61 can be switched between a state in which the upper die D1 is strongly attracted and an attraction release state. The magnet clamp 61 is connected to the control drive unit.

Next, the arrangement of the plurality of magnet units 61a in the magnet clamp 61 will be described with reference to FIG. The magnet clamp 61 has a plurality of magnet units 61a arranged in parallel in a plurality of parallel rows, and each row includes a plurality of magnet units 61a.

Ribs R are usually formed in a grid pattern on the attracted surface (upper surface) of the die (for example, the upper die D1). If the direction of the ribs R and the row of the magnet units 61a are parallel or at right angles, the attraction area of the magnet units 61a that can attract the ribs R may be very small.

The direction of the rib R is positioned parallel or at right angles to the outline of the rectangular upper mold D1, and a part of the outline of the upper mold D1 loaded into the mold receiving space 40 is a rotating body. It becomes parallel to the axis Xa parallel to the rotation axis X of 20. Therefore, in the magnet clamp 61, the plurality of rows are oriented in a direction intersecting with the direction parallel to the rotation axis X of the rotating body 20. The intersecting direction is preferably a direction intersecting at 30 to 60°, more preferably a intersecting direction at about 45°.

The mold elevating means 62 is mounted on the top plate 50 and can drive the holding plate 65 and the magnet clamp 61 up and down. The mold raising/lowering means 62 is mounted on the top plate 50, and has a vertical posture ascending/descending fluid pressure cylinder 63 in which a piston rod 63a is connected to a holding plate 65, and the bottom plate is fixed to the holding plate 65 to fix the top plate 50. And four guide rods 64 that are guided up and down by a guide portion on the top plate 50 side. The fluid pressure cylinder 63 is connected to a fluid pressure supply source.

Next, the mold carrier 70 will be described.
As shown in FIG. 2 and FIG. 3, the mold carrier cart 70 is arranged in a normal position arranged in front of the mold reversing device 1 and in a horizontal direction orthogonal to the rotation axis X of the rotary plates 20a and 20b. It is movable to and from the entry position where it enters the receiving space 40. The mold carrier 70 has, for example, four idle wheels 71 and is movable in the front-rear direction on a pair of rails 72 attached to the base plate 13. A tread 72a made of striped steel plate is provided between the rails 72.

The die mounting surface 70a of the die transfer carriage 70 is located at a predetermined height from the floor surface, and the upper die D1 of the die set D placed on the die mounting surface 70a is lowered. It can be held by the die holding means 60.

Next, a reversing method of separating the upper mold D1 from the mold set D using the mold reversing system S described above and reversing the upper mold D1 by 180° will be described.
In the first step, as shown in FIG. 5, the mold reversing device 1 is held in a regular posture with the top plate 50 positioned on the upper side, the magnet clamp 61 is held in the raised position, and the mold carrier 70 is moved to the mold. The mold set D including the upper mold D1 and the lower mold D2 is held at a normal position on the front side of the reversing device 1, and is suspended by a crane to be loaded onto the mold mounting surface 70a of the mold carrier 70.

In the second step, as shown in FIG. 6, the mold carrier 70 carrying the mold set D is moved to the mold receiving space 40 in the mold reversing device 1, and the upper mold D1 is opposed to the magnet clamp 61. Let Next, the holding plate 65 and the magnet clamp 61 are lowered by the mold lifting means 62, and the upper clamp D1 is attracted by the magnet clamp 61.

In the third step, as shown in FIG. 7, the die elevating means 62 switches the holding plate 65, the magnet clamp 61 and the upper die D1 to the raised position to separate the upper die D1 from the lower die D2. After that, the mold carrier 70 on which the lower mold D2 is placed is returned to the retracted position, which is separated from the mold reversing device 1 by a predetermined distance, and is placed between the mold carrier 70 and the mold reversing device 1. , A working space S for slinging work is formed.

In the fourth step, as shown in FIG. 8, the upper die D1 and the rotating body 20 are rotated counterclockwise by 180° to be in the inverted state, and then the upper die D1 is hung by the crane to invert the mold. It is lifted above 1 and carried out. In parallel with the above, the lower mold D2 is hung by a crane and moved to the outside.

The operation and effect of the mold reversal system S described above will be described.
The mold set D placed on the mold carrier 70 is loaded into the mold receiving space 40 between the pair of rotating plates 20a and 20b, and the magnet clamp 61 is lowered by the mold lifting means 62 to move the upper mold. D1 is adsorbed, then the upper mold D1 is raised and separated from the lower mold D2, and then the lower mold D2 is carried forward by the mold carrier 70, and then the rotating body 20 and the upper mold D1 are rotated by 180°. When rotated, the inverted upper mold D1 can be carried out from the mold receiving space 40 to the outside. Thus, the mold set D can be separated into the upper mold D1 and the lower mold D2, and the upper mold D1 can be inverted. However, the upper die or the lower die can be placed on the die carrier carriage 70, carried into the die receiving space 40, and inverted in the same manner as described above.

Since the rotary body 20 rotatably supported by the pair of rotary body supporting portions 11a and 11b of the base 10 and the rotary drive mechanism 30 are used to rotate the rotary body 20 and the upper mold D1, The structure for inverting the mold D1 could be simplified. Since the upper and lower molds D1 are attracted by the magnet clamp 61 that can be lifted and lowered by the mold lifting and lowering means 62, the structure for clamping and lifting and lowering the upper mold D1 is simplified and the mold can be efficiently held.

Since the row direction of the plurality of rows of the plurality of magnet units 61a in the magnet clamp 61 is oriented in the direction intersecting with the direction parallel to the rotation axis X of the rotating body 20, the surface of the die (upper die D1) is attracted. Even when the grid-shaped ribs R are formed, the mold can be reliably attracted by the magnet clamp 61.

Moreover, the upper die D1 and the lower die D2 can be loaded without loading the die carrier D into the die receiving space 40 with the die set D placed thereon and passing the die set D to the die reversing device 1. Since they can be separated, the structure of the mold reversing device 1 can be simplified and downsized, and the time required for separation can be shortened.

After the mold set D is carried into the mold receiving space 40, a series of operations of descending the magnet clamp 61, adsorbing, raising the upper mold D1, carrying out the lower mold D2, and rotating the rotating body 20 and the upper mold D1 by 180° are performed. Since it can be efficiently performed, the mold reversal system S having excellent productivity can be obtained.

The rotary drive mechanism 30 includes a pair of semicircular pin holding plates 31, a plurality of pins 32 provided in the vicinity of the outer periphery of the pin holding plates 31, a sprocket 33 that engages with the plurality of pins 32, and a sprocket. 33 and the drive motor 34 that can be driven to rotate can be manufactured at a low cost with a simple structure.

The mold lifting/lowering means 62 has a lifting/lowering fluid pressure cylinder 63 mounted on the top plate 50 for lifting/lowering the magnet clamp 61 and four guide rods 64, so that the mold lifting/lowering means operates smoothly with a simple structure. 62 can be realized.

The mold reversal system SA according to the second embodiment will be described.
The same members as those of the mold reversing system S are designated by the same reference numerals, and the description thereof will be omitted. Only different configurations will be described. The mold reversing system SA includes a mold reversing device 1A and a mold carrier 70A.

As shown in FIGS. 10 and 11, the mold holding means 60A mounted on the rotating body 20A is composed of a magnet clamp 61 fixed to the lower surface of the top plate 50. In this mold reversing device 1A, the mold lifting means is omitted.

The dolly raising/lowering means 74 of the die carrier trolley 70A is the four vertical hydraulic cylinders 75 attached to the four corners of the die carrier trolley 70A so that the piston rod 75a can contact the rail 72. It is composed of four configured fluid pressure cylinders 75. The carriage raising/lowering means 74 can raise/lower the die carrier truck 70A together with the die (set D or upper die D1 or lower die D2) or independently.

Next, a reversing method of separating the upper mold D1 from the mold set D using the mold reversing system SA described above and reversing the upper mold D1 by 180° will be described.
In the first step, as shown in FIG. 12, the mold reversing device 1A is held in a normal posture with the top plate 50 positioned on the upper side, and the mold carrier 70A is held at the normal position on the front side of the mold reversing device 1A. Then, the mold set D including the upper mold D1 and the lower mold D2 is hung by a crane and carried on the support plate 74 of the mold carrier 70A.

In the second step, as shown in FIG. 13, the mold carrier 70A carrying the mold set D is moved to the mold receiving space 40 in the mold reversing device 1A, and the upper mold D1 is opposed to the magnet clamp 61. Let Next, the die transfer carriage 70A and the die set D are raised by the carriage raising/lowering means 74, and the magnet clamp 61 attracts the upper die D1.

In the third step, as shown in FIG. 14, the carriage raising/lowering means 75 switches the mold transfer carriage 70A and the lower mold D2 to the lowered position to separate the upper mold D1 from the lower mold D2. Next, the mold carrier cart 70A on which the lower mold D2 is placed is returned to the retracted position, which is separated from the mold reversing device 1A by a predetermined distance forward.

In the fourth step, as shown in FIG. 15, the upper die D1 and the rotating body 20 are rotated counterclockwise by 180° to be in the inverted state, and then the upper die D1 is hung by the crane to invert the mold. Lift up above 1A and carry out. In parallel with the above, the lower mold D2 is hung by a crane and moved to the outside.

At this time, as shown in FIG. 16, when the mold carrier 70A is moved to the retracted position which is separated from the mold reversing device 1A by a predetermined distance, the mold carrier 70A and the mold reversing device 1A are separated from each other. Since a work space S for the worker to sling is formed, the worker enters the work space S and hangs the wire side hook of the crane on the hook hook on the side of the upper die D1. It can be performed.

When the diameters of the rotary plates 20a and 20b of the rotary body 20A of the mold reversing device 1A are larger than the standard width (for example, 1500 mm) of the thin steel plate material, the rotary plates 20a and 20b are replaced as shown in FIG. Each of the four discs 20c constituting the main plate 20d having a width equal to the standard width and the end plate 20e having a width smaller than the standard width are butted against each other at a butt line L, and as shown in FIG. When stacking the discs 20c, the phases of the four butt lines L are different by 90°, for example. In this way, the rotating plate 20c can be manufactured at low cost by using the steel plate material having the standard width.

The operation and effect of the mold inversion system SA described above will be described.
Since the operation and effect of this mold reversal system SA are basically the same as those of the first embodiment, only different operation and effect will be described.

Since the holding plate of the mold holding means 60A and the mold raising/lowering means of the mold reversing device 1A are omitted, it is not necessary to supply fluid pressure to the rotating body 20A, and the rotating body 20A is lightened, and the rotation drive mechanism is provided. The size of 30 can be reduced.

In the third embodiment, the mold reversing system SA of the second embodiment is partially modified, and the same components as those in the first and second embodiments are designated by the same reference numerals and the description thereof will be omitted.

In the above-mentioned second step, when the die transfer carriage 70A and the mold set D are raised by the carriage raising/lowering means 74 and the upper die D1 is attracted by the magnet clamp 61, a gap is left between the magnet clamp 61 and the upper die D1. If the magnet clamp 61 is actuated by suction in the presence of the presence of a large amount of noise, a large collision sound and impact are generated.

Therefore, in order to prevent the above-mentioned collision noise and impact from occurring, a contact confirmation means 80 for confirming the contact between the magnet clamp 61 and the upper die D1 is provided as follows, and the contact between the magnet clamp 61 and the upper die D1 is confirmed. After that, the magnet clamp 61 is configured to be attracted.

As shown in FIGS. 19 and 20, the contact confirmation means 80 is provided, for example, on the operation panel of the mold reversing system SA, and a proximity switch 81 that is close to the lowermost part of the rotary plate 20b on the left side of the rotary body 20A from below. And a display lamp (not shown). The proximity switch 81 and the indicator lamp are electrically connected to the control drive unit.

A proximity switch 81 is attached upward to the upper end of the substrate 12b on the left side of the base 10 and immediately below the rotation axis X of the rotating body 20A. As shown by the chain double-dashed line in FIG. 19, when the rotating body 20A is supported by the plurality of idle rollers 14 of the base 10, the detection signal of the proximity switch 81 is kept ON, and the display lamp is, for example, red. Is lit.

In the second step, the mold carrier 70A and the mold set D are lifted by the carrier lifting means 74, and the mold carrier 70A is further moved by about 2 to 4 mm beyond the state where the upper mold D1 is in close contact with the magnet clamp 61. When the mold set D is raised, as shown by the solid line in FIG. 19, the rotating body 20A and the rotating plate 20b are floated by about 2 to 4 mm, and the detection signal of the proximity switch 81 is turned off. Since the display lamp is switched to, for example, green, it is possible to confirm the close contact state between the upper die D1 and the magnet clamp 61, and after confirming the close contact state, the magnet clamp 61 is actuated by suction. In this way, it is possible to prevent the collision noise and the impact from being generated. A limit switch or a photo interrupter may be used instead of the proximity switch 81 described above.

Next, an example in which the above embodiment is partially modified will be described.
1) In the above embodiment, the case where the mold set D is separated into the upper mold D1 and the lower mold D2 and then the upper mold D1 is inverted is described as an example. However, the upper mold D1 and the lower mold D2 are independently used. It is also possible to place it on the die transfer carriage 70, 70A, carry it into the die receiving space 40 of the die reversing device 1, 1A, and invert it as in the above-described embodiment.

2) The rotating plates 20a and 20b, the plate member 40a, the pin holding plate 31 and the like may be composed of one steel plate instead of a plurality of thin steel plates.
3) In the rotary drive mechanism 30, one gear member may be provided instead of the pair of pin holding plates 31, and a pinion that meshes with the gear member may be provided instead of the sprocket 33.

4) It is also possible to employ a plurality of electric or fluid pressure driven clamp devices instead of the magnet clamps 61 of the mold holding means 60, 60A.

5) Similar to the pin holding plate 31 of the rotary drive mechanism 30, the rotary plates 20a and 20b of the rotary body 20 are arranged so that a pair of plate members face each other with a small space therebetween, and their outer peripheral portions are circumferentially arranged. A configuration may be adopted in which a plurality of pin members are arranged at small intervals, and the flanged rollers are respectively rotatably mounted on the plurality of pin members. In this case, the idle rollers of the rotor support portions 11a, 11b of the substrates 12a, 12b of the base 10 are omitted, and the rotary plates 20a, 20b are supported by arc-shaped plate ends.

6) The mold reversing system S, SA can be applied to various mold sets such as a mold set for casting and a mold set for injection molding, in addition to the mold set for a press machine.
7) Others can be implemented by those skilled in the art without departing from the gist of the present invention in a form in which various modifications are added to the embodiment, and the present invention includes such modifications.

The present invention provides a device for separating and inverting mold sets for various applications.

D1 Upper mold D2 Lower mold D Mold set S, SA Mold reversing system 1, 1A Mold reversing device 10 Bases 11a, 11b Rotating member support 14 Idler rollers 20, 20A Rotating members 20a, 20b Rotating plate 20c Circle Plate 20d Main plate 20e End plate L Butt line 21 Connection member 30 Rotational drive mechanism 31 Pin holding plate 32 Pin 33 Sprocket 34 Drive motor 40 Mold receiving space 50 Top plate 60, 60A Mold holding means 61 Magnet clamp 61a Magnet unit 62 Gold Mold raising/lowering means 63 Fluid pressure cylinder 64 Guide rod 70, 70A Mold transfer carriage 74 Truck raising/lowering means 75 Fluid pressure cylinder 75a Piston rod S Working space 80 Contact confirmation means

Claims (9)

In a mold reversing system having a mold reversing device capable of receiving a mold and reversing 180° and a mold carrier,
The mold reversing device,
A base having a pair of arc-shaped rotor support portions at both ends separated by a predetermined distance;
A rotating body including a pair of parallel rotating plates that are rotatably supported by the pair of rotating body supporting portions and are connected by a plurality of connecting members;
A rotary drive mechanism capable of rotationally driving the rotary body,
A horizontal top plate fixedly provided on the upper part of the rotating body,
A mold holding means that is arranged so as to be able to move up and down on the lower side of the top plate and that can hold a mold,
And a mold elevating means capable of elevating and lowering the mold holding means provided on the top plate,
The mold holding means includes a holding plate arranged under the top plate so as to be able to move up and down, and a magnet clamp fixed to the holding plate,
The mold raising/lowering means includes a vertically-moving fluid pressure cylinder mounted on the top plate and having a piston rod connected to a holding plate, and a lower end portion fixed to the holding plate and a guide portion on the top plate side. With a plurality of guide rods to be guided,
The mold reversing system, wherein the mold carrier is configured to be capable of entering a mold receiving space between a pair of the rotating plates in a horizontal direction orthogonal to a rotation axis of the rotating body. In a mold reversing system having a mold reversing device capable of receiving a mold and reversing 180° and a mold carrier,
The mold reversing device,
A base having a pair of arc-shaped rotor support portions at both ends separated by a predetermined distance;
A rotating body including a pair of parallel rotating plates that are rotatably supported by the pair of rotating body supporting portions and are connected by a plurality of connecting members;
A rotary drive mechanism capable of rotationally driving the rotary body,
A horizontal top plate fixedly provided on the upper part of the rotating body,
Provided with a mold holding means arranged on the lower surface side of the top plate and capable of holding a mold,
The mold holding means includes a magnet clamp fixed to the lower surface of the top plate,
The mold carrier is configured to be able to enter the mold receiving space between the pair of rotating plates from a horizontal direction orthogonal to the rotation axis of the rotating body, and the mold carrier can be moved up and down together with the mold or independently. A mold reversing system having a drivable carriage elevating means. The rotary drive mechanism is a pair of semicircular pin holding plates fixed to the outer surface of one of the rotary plates and facing each other with a predetermined gap, and a predetermined small amount in the circumferential direction in the vicinity of the outer circumference of these pin holding plates. A plurality of pins fixed at intervals and parallel to the rotation axis, sprockets provided at one outer peripheral side of the pair of pin holding plates and engaged with the plurality of pins, and a drive capable of rotationally driving the sprockets. The mold reversing system according to claim 1 or 2, further comprising a motor. The mold reversal system according to claim 1 or 2, wherein the rotating body support portion has a plurality of idler rollers. 3. The mold reversing system according to claim 2, wherein the carriage elevating means has a plurality of lifting fluid pressure cylinders which are mounted on a mold carrier carriage and whose piston rods can abut the carriage traveling rails. .. The magnet clamp has a plurality of magnet units arranged in a plurality of parallel rows including a plurality of magnet units in each row,
The mold reversing system according to claim 1 or 2, wherein the plurality of rows are oriented in a direction intersecting a direction parallel to a rotation axis of the rotating body. The mold reversing system according to claim 1 or 2, wherein a work space for an operator to enter and work is formed between the mold carrier and the mold reversing device. The rotating plate of the rotating body is configured by laminating a plurality of discs, and when the diameter of the rotating body is larger than the width of a steel plate material having a standard width, the disc is a main plate having a width equal to the standard width. 3. An end plate having a width smaller than that of the main plate is abutted with a butt line, and the butt lines of the plurality of discs are set to have different phases, respectively. Mold reversal system described in. It is characterized in that a contact confirmation means is provided for confirming that the mold and the magnet clamp are in close contact with each other when the mold transfer carriage and the mold are lifted by the trolley lifting means to bring the mold into close contact with the magnet clamp. The mold reversal system according to claim 2.