WO2018056092A1

WO2018056092A1 - Mold reversing system

Info

Publication number: WO2018056092A1
Application number: PCT/JP2017/032661
Authority: WO
Inventors: 北浦　一郎; 清二木村
Original assignee: パスカルエンジニアリング株式会社
Priority date: 2016-09-23
Filing date: 2017-09-11
Publication date: 2018-03-29

Abstract

[Problem] To provide a mold reversing system that can carry out efficient separation and reversal when separating and reversing an upper mold from a mold set, for which mounting and support means for the mold set received by a mold reversing device from the outside can be omitted, and with which production costs can be reduced. [Solution] Provided is a mold reversing system (S) having mold reversing device (1) for receiving, separating, and reversing 180° a mold set (D), which includes an upper mold (D1) and a lower mold (D2), and a mold transport truck (70), the mold reversing device (1) being provided with: a base (10) having a pair of circular arc shaped rotating body support parts (11a, 11b) on both ends separated by a prescribed distance; a rotating body (20) that includes a pair of parallel rotating plates (20a, 20b) respectively supported so as to rotate freely on the pair of rotating body support parts (11a, 11b); a rotational drive mechanism (30) that can rotationally drive the rotating body (20); a top panel (50) provided in the upper part of the rotating body (20); a mold holding means (60) disposed raisably and lowerably on the lower side of the top panel (50) and capable of holding an upper mold or lower mold; and a mold raising and lowering means (62) provided on the top panel (50) and capable of driving the raising and lowering of the mold holding means (60). The mold transport truck (70) is constituted so as to be able to approach the mold receiving space (40) between the pair of rotating plates (20a, 20b) from a horizontal direction orthogonal to the center of the axis of rotation of the rotating body (20).

Description

Mold reversal system

The present invention relates to a mold reversing system capable of receiving a mold and reversing 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, the mold set is transported to a predetermined repair location and is used with an overhead crane, etc. The upper mold and the lower mold are separated from each other by lifting the upper mold, and then the upper mold is inverted by 180 ° to repair the upper mold and the lower mold. This takes a lot of time and effort.

Therefore, various mold reversing devices and mold separation reversing devices have been proposed.
In the die set reversing device disclosed in Patent Document 1 (FIGS. 4 and 5), a pair of rams are equipped with a pair of rams that can be moved up and down, and a rotating frame for attaching a mold to the pair of rams is rotated. The mold can be turned upside down by rotating it after raising the rotating frame with the mold attached to the rotating frame freely.

In the mold separation and reversal device disclosed in Patent Document 2, a movable movable body is provided on each of two pairs of four pillars so as to be movable up and down, and is provided on the pair of movable movable bodies. A movable arm is connected to the rotating shaft, a mounting board that can fix the mold is connected to the tip of a pair of movable arms, a mold set is loaded under the mounting board, and the upper mold is attached by a fixing device. With the substrate fixed, the pair of elevating movable bodies are raised, the lower mold is unloaded, and then the rotating shaft is rotated to invert the mounting substrate and the upper mold by 180 °.

Japanese Patent Laid-Open No. 5-200455 JP-A-5-293632

The mold reversing device of Patent Document 1 can be reversed by attaching a single mold (for example, an upper mold), but a mold set in which an upper mold and a lower mold are combined is an upper mold and a lower mold. It does not have a function of separating.

The mold reversing device of Patent Document 2 can reverse 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 consisting of four struts, a pair of elevating movable bodies, a mounting substrate, a fixing device, elevating means for elevating and lowering the elevating movable bodies. It becomes expensive. Moreover, since the fixing device has a structure for fixing the upper die by manual operation, the upper die cannot be efficiently fixed, and it is difficult to increase the work efficiency.

As described above, the conventional mold reversing apparatus is provided with means for receiving and fixing and supporting a mold set from the outside, and accordingly, the mold reversing apparatus is complicated and enlarged.
Further, since a screw type clamp, a fluid pressure cylinder type clamp and a holder are employed to fix the received mold to the reversing device, the configuration is complicated and the fixing time is also long.

An object of the present invention is a mold reversal system that carries in and reverses a mold, and can easily and efficiently fix a mold received from the outside, and can efficiently perform reversal of the mold. It is to provide a mold reversal system capable of reducing production costs.

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 conveying carriage. A base having a pair of arcuate rotating body support portions, and a pair of parallel rotating plates that are rotatably supported by the pair of rotating body support portions and connected by a plurality of connecting members. A rotating body that includes the rotating body, a rotational drive mechanism that can rotationally drive the rotating body, a horizontal top plate that is fixedly provided on the top of the rotating body, and a gold plate that can be moved up and down below the top plate. A mold holding means capable of holding a mold, and a mold lifting means mounted on the top plate and capable of driving the mold holding means up and down;
The mold holding means includes a holding plate disposed so as to be movable up and down below the top plate, and a magnet clamp fixed to the holding plate. The mold lifting means is mounted on the top plate and is provided with a piston. The die conveyance includes: a vertically moving fluid pressure cylinder having a rod connected to a holding plate; and a plurality of guide rods having a lower end fixed to the holding plate and guided by a guide portion on the top plate side. The carriage is configured to be able to enter a mold receiving space between the pair of rotating plates from 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 includes a mold reversing device capable of receiving a mold and reversing by 180 ° and a mold transport carriage. A base having a pair of arcuate rotating body support portions, and a pair of parallel rotating plates that are rotatably supported by the pair of rotating body support portions and connected by a plurality of connecting members. A rotary body including the rotary body, a rotational drive mechanism capable of rotationally driving the rotary body, a horizontal top plate fixedly provided on the top of the rotary body, and a mold disposed on the lower surface side of the top plate Possible mold holding means,
The mold holding means includes a magnet clamp fixed to the lower surface of the top plate, and the mold transport carriage is in a horizontal direction perpendicular to the rotation axis of the rotating body in a mold receiving space between the pair of rotating plates. And a carriage raising / lowering means that can be moved up and down and can be driven up and down together with the mold or alone.

The invention of claim 3 is the invention according to claim 1 or 2, wherein the rotational drive mechanism is fixed to the outer surface of one of the rotary plates and is opposed to a pair of semicircular pins with a predetermined gap therebetween, A plurality of pins fixed in the circumferential direction in the vicinity of the outer periphery of these pin holding plates at predetermined small intervals and parallel to the rotation axis, and provided on one outer peripheral side of the pair of pin holding plates. A sprocket that is engaged and a drive motor that can rotationally drive the sprocket are provided.

The invention of claim 4 is characterized in that, in claim 1 or 2, the rotating body support portion has a plurality of idle rollers.

According to a fifth aspect of the invention, in the second aspect of the invention, the carriage lifting / lowering means includes a plurality of lifting / lowering hydraulic cylinders that are mounted on the mold conveyance carriage and that allow the piston rod to contact the carriage traveling rail. It is said.

The invention of claim 6 is the invention of claim 1 or 2, wherein 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. Is directed in a direction intersecting with a direction parallel to the rotational axis of the rotating body.

The invention of claim 7 is configured such that in the invention of claim 1 or 2, a work space for an operator to enter and work can be formed between the mold transport carriage and the mold reversing device. It is a feature.

The invention of claim 8 is the invention of claim 1 or 2, wherein the rotating body is configured by laminating a plurality of rotating plates, and the diameter of the rotating body is larger than the width of the standard steel plate material, The rotating plate is configured by abutting a main plate having a width equal to the standard width and an end plate having a width smaller than the main plate with a butting line, and a plurality of butting lines of the plurality of rotating plates have different phases. It is characterized by being set.

According to a ninth aspect of the present invention, there is provided the mold reversing system according to the second aspect of the present invention, wherein the mold conveying carriage and the mold are lifted by the carriage lifting means to bring the mold into close contact with the magnet clamp. It is characterized in that there is provided an adhesion confirmation means capable of confirming that the film is adhered.

According to the first aspect of the present invention, the mold set placed on the mold transport carriage is carried into the mold receiving space between the pair of rotating plates, the mold holding means is lowered by the mold lifting means, and the upper mold is moved. After holding, the upper mold is raised, and then the lower mold is unloaded by the mold carriage, and when the rotating body and the upper mold are rotated 180 °, the inverted upper mold is unloaded from the mold receiving space to the outside. can do. Thus, the mold set can be separated into the upper mold and the lower mold, and the upper mold can be inverted. However, it is also possible to carry the upper mold or the lower mold alone and reverse it.

The mold reversing device has a structure in which the rotating body and the mold are rotated using a rotating drive mechanism and a rotating body that is rotatably supported by a pair of rotating body support portions of the base. The structure to do was simplified. Since the mold is held by the mold holding means that can be moved up and down by the mold lifting means, the structure for holding the mold can be simplified. Therefore, the manufacturing cost of the mold reversal system could be reduced.

Especially, since the mold holding means is configured to attract the mold with a magnet clamp, the configuration is simplified and the mold can be held efficiently. Since the mold lifting / lowering means is composed of a fluid pressure cylinder and a plurality of guide rods, the mold lifting / lowering means that operates smoothly with a simple configuration can be realized.

In addition, since it can be turned into the mold receiving space while being placed on the mold transfer carriage, it is not necessary to transfer the mold set to the mold reversing device, so the structure of the mold reversing device is simplified and miniaturized. And mold reversal can be performed efficiently.

After carrying the mold set placed on the mold carriage into the mold receiving space, lowering and holding the mold holding means, raising the upper mold, unloading the lower mold, 180 ° rotation of the rotating body and upper mold, upper mold Since a series of operations for unloading can be performed efficiently, a mold reversal system with excellent productivity can be obtained.

In the invention of claim 2, since the mold conveying carriage has a carriage raising and lowering means capable of raising and lowering the mold conveying carriage together with the mold or independently, the mold set placed on the mold conveying carriage is received as the mold. After carrying into the space, the die set is raised together with the die conveying carriage by means of the carriage lifting means, so that the die is transferred to the mold holding means, and then the lower die is carried out by the die conveying carriage. Similarly to 1, the upper die can be inverted 180 ° by the die inversion device.
Since the rotating body is not provided with mold lifting means, the rotating body can be reduced in weight. In addition, the same effects as those of the first aspect can be obtained.

According to a third aspect of the present invention, the rotational drive mechanism includes a pair of semicircular pin holding plates, a plurality of pins fixed in the vicinity of the outer periphery thereof, and a sprocket that engages with some of these pins. And a drive motor capable of rotationally driving the sprocket, and can be easily and inexpensively manufactured.

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

According to a fifth aspect of the present invention, the carriage lifting / lowering means has a plurality of lifting and lowering hydraulic pressure cylinders that are mounted on the mold conveyance carriage and can be brought into contact with the carriage traveling rail. Since it is configured to abut against the carriage traveling rail, the mold conveyance carriage can be raised and lowered stably while maintaining the horizontal posture, so that the carriage plate raising and lowering means with a simple structure and excellent reliability can be obtained. Can do.

According to the invention of claim 6, even when a lattice-shaped rib is formed on the attracted surface of the mold attracted by the magnet clamp, some of the magnet units constituting the magnet clamp Can adsorb the above ribs.

According to the invention of claim 7, since a work space for an operator to enter and work can be formed between the mold transport carriage and the mold reversing device, the worker who has entered the work space It is possible to perform a slinging operation or the like when the inverted upper mold or the like is suspended by a crane.

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

According to the ninth aspect of the present invention, when the mold conveying carriage and the mold are raised and the mold is brought into close contact with the magnet clamp, the contact confirmation means for confirming the close contact is provided. By causing the clamp to be attracted, collision noise and impact can be prevented.

It is a perspective view of the metallic mold inversion apparatus concerning Example 1 of the present invention. It is a front view of a mold reversal system. It is a right view of a mold reversal system. It is an enlarged front view of a board | substrate and an idle roller. It is operation | movement explanatory drawing of the 1st process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is operation | movement explanatory drawing of the 2nd process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is operation | movement explanatory drawing of the 3rd process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is operation | movement explanatory drawing of the 4th process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is a bottom view of a magnet clamp. It is a front view of the metal mold inversion system of Example 2. FIG. 10 is a right side view of the mold reversing system of FIG. 9. It is operation | movement explanatory drawing of the 1st process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is operation | movement explanatory drawing of the 2nd process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is operation | movement explanatory drawing of the 3rd process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is operation | movement explanatory drawing of the 4th process at the time of isolate | separating and reversing an upper mold | type from a lower mold | type. It is a perspective view of the metallic mold inversion system in the 4th process. It is a perspective view of the disk which comprises the rotating plate of a rotary body. It is a side view of the rotating plate of a rotary body. FIG. 6 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 surrounding structure.

DETAILED DESCRIPTION Embodiments for carrying out the present invention will be described based on examples.

The mold reversing system S of the present embodiment is composed of a mold reversing device 1 and a mold transport carriage 70. First, the structure of the mold reversing device 1 and the mold transport carriage 70 will be described based on FIGS. 1 to 4, and then the operation of the mold reversing system S will be described based on FIGS. . 1 is a perspective view of the mold reversing device 1, FIG. 2 is a front view of the mold reversing system S, FIG. 3 is a right side view of the mold reversing system S, L indicates the left side, and R indicates Indicates right side.

This mold reversing device 1 is a device capable of reversing 180 ° after receiving a mold set D including an upper mold D1 and a lower mold D2 and separating the upper mold D1. The mold reversing device 1 can receive a mold carrier carriage 70 on which a base 10, a rotating body 20 including a pair of

rotating plates

20a and 20b, a rotation driving mechanism 30, and a mold set D are placed. A mold receiving space 40, a top plate 50, a mold holding means 60 including a magnet clamp 61, and a mold lifting / lowering means 62 for moving the mold holding means 60 up and down are provided.

First, the base 10 will be described.
The base 10 has a pair of arcuate rotating

body support portions

11a and 11b at both ends separated by a predetermined distance in the left-right direction. The base 10 is formed by connecting a pair of left and

right substrates

12 a and 12 b in a vertical posture with a base plate 13. The base plate 13 extends a predetermined length to the front of the mold reversing device 1. The rotating

body support portions

11a and 11b are provided with a plurality of idle rollers 14 attached to the vicinity of the arcuate upper ends of the

substrates

12a and 12b at predetermined intervals.

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 idle 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 idle rollers 14 are supported at both ends by two plate members. In order to prevent the

rotating plates

20a and 20b from falling off the idler roller 14, the idler roller 14 is a roller with both hooks, and the upper ends of the

substrates

12a and 12b protrude above the upper surface of the idler roller 14 by a predetermined height. Yes.

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 that are rotatably supported by a pair of rotating

body support portions

11a and 11b are connected by a plurality of connecting members.

As shown in FIG. 4, the left rotating plate 20a is formed by, for example, laminating four thin steel plates in close contact and connecting them with a plurality of pin members or the like, and the right rotating plate 20b is the same. On the outer peripheral portions of the

rotating plates

20a and 20b, supported portions 20p that are supported portions 20p and can be supported by the rotating

body support portions

11a and 11b are formed.

The plurality of connecting members include the upper six connecting rods 21 and the top plate 50 that is the upper connecting plate. The connecting rod 21 is a tie rod, and nuts 21a are screwed to both ends of the connecting rod 21 outside the rotating

plates

20a and 20b. In order to allow the mold conveyance carriage 70 to enter the mold receiving space 40, no connecting member is provided at the middle and lower portions of the

rotary plates

20a and 20b. The top plate 50 is disposed in a horizontal posture on the upper portion of the rotating body 20, and the top plate 50 is a thick plate member having a predetermined front-rear width. The left end portion of the top plate 50 is fixed to the rotating plate 20a, and the right end portion of the top plate 50 is fixed to the rotating 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 the mold conveyance carriage 70 on which the mold set D having a normal size is placed.
Since the pair of

rotating plates

20a and 20b of the rotating body 20 are rotatably supported by the pair of rotating

body support portions

11a and 11b, the rotating body 20 is rotatable around the rotation axis X. It is configured to be able to rotate 180 ° counterclockwise from the state of FIG.

Next, the rotation drive mechanism 30 capable of rotating the rotating body 20 will be described.
As shown in FIGS. 1 and 3, the rotation 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 connected to each other by a plurality of pins 32 facing each other with a predetermined gap, and the pair of pin holding plates 31 are separated from each other by a predetermined interval on the outer surface of the right rotating plate 20b. It is fixed with bolts 35 and nuts. The pin holding plate 31 has a semicircular shape, but is slightly larger than the semicircle.

The plurality of pins 32 are fixed to the vicinity of the outer periphery of the pin holding plate 31 at predetermined small intervals in the circumferential direction and arranged in parallel with the rotation axis X.
The sprocket 33 is provided at one place 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 a reduction gear) is capable of rotationally driving the sprocket 33. By rotating the sprocket 33, the rotating body 20 is moved via a plurality of pins 32 and a pair of pin holding plates 31. It is configured to rotate. The drive motor 34 is fixed on the mounting table 36 and connected to a control drive unit (not shown).

Next, the mold holding means 60 and the mold lifting / lowering means 62 will be described.
As shown in FIGS. 1 and 2, the mold holding means 60 holds the mold (upper mold D 1) via a holding plate 65 and a magnet clamp 61 that are disposed below the top plate 50 so as to be movable up and down. The holding plate 65 and a magnet clamp 61 fixed to the lower surface of the holding plate 65 and capable of attracting the upper die D1.

The above-described magnet clamp 61 is fixed to the lower surface of the holding plate 65 and is disposed so as 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 mold D1 is strongly adsorbed and an adsorbed release state. The magnet clamp 61 is connected to the control drive unit.

Next, the arrangement form 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 proximity to a plurality of parallel rows, and each row includes a plurality of magnet units 61a.

In general, ribs R are formed in a lattice shape on the attracted surface (upper surface) of a mold (for example, the upper mold D1). If the direction of the rib R and the row of the magnet units 61a are parallel or perpendicular, the attracting area of the magnet unit 61a that can attract the rib R may be very small.

The direction of the rib R is positioned parallel to or perpendicular to the outline of the rectangular upper mold D1, and a part of the outline of the upper mold D1 in the state of being carried into the mold receiving space 40 is a rotating body. It becomes parallel to the axis Xa which is parallel to the 20 rotation axis X. Therefore, in the magnet clamp 61, the direction of the plurality of rows is directed in a direction intersecting the direction parallel to the rotation axis X of the rotating body 20. This intersecting direction is preferably a direction intersecting at 30 to 60 °, more preferably a direction intersecting at about 45 °.

The mold raising / lowering 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 lifting / lowering means 62 is mounted on the top plate 50 and has a vertical posture fluid pressure cylinder 63 in which the piston rod 63 a is connected to the holding plate 65, and a lower end fixed to the holding plate 65, and the top plate 50. For example, four guide rods 64 guided so as to be movable up and down by a guide portion on the top plate 50 side are provided. The elevating fluid pressure cylinder 63 is connected to a fluid pressure supply source.

Next, the mold conveyance cart 70 will be described.
As shown in FIGS. 2 and 3, the mold conveyance carriage 70 is configured so that the mold is moved from the normal position arranged on the front side of the mold reversing device 1 and the horizontal direction orthogonal to the rotation axis X of the

rotary plates

20 a and 20 b. It is movable between the entry position that entered the receiving space 40. The mold conveyance carriage 70 has, for example, four idle wheels 71 and is movable in the front-rear direction on a pair of rails 72 attached on the base plate 13. In addition, between the rails 72, a tread plate 72a made of a striped steel plate is provided.

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

Next, a reversing method for 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 normal posture where the top plate 50 is located on the upper side, the magnet clamp 61 is held in the raised position, and the mold transport carriage 70 is moved to the mold. The mold set D including the upper mold D1 and the lower mold D2 is held by the crane while being held at the normal position on the front side of the reversing device 1, and is carried onto the mold placement surface 70a of the mold transport carriage 70.

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

In the third step, as shown in FIG. 7, the holding plate 65, the magnet clamp 61, and the upper die D1 are switched to the raised position by the die lifting means 62, and the upper die D1 is separated from the lower die D2. Thereafter, the mold conveyance carriage 70 on which the lower mold D2 is placed is returned to the retracted position spaced apart from the mold inversion apparatus 1 by a predetermined distance, and between the mold conveyance carriage 70 and the mold inversion apparatus 1. A work space Sp for slinging work is formed.

In the fourth step, as shown in FIG. 8, the upper mold D1 and the rotating body 20 are rotated 180 ° counterclockwise so as to be reversed, and then the upper mold D1 is hung by a crane and the mold reversing device. Lift up above 1 and carry it out. In parallel with the above, the lower mold D2 is suspended by a crane and moved to the outside.

The operation and effect of the mold reversing system S described above will be described.
The mold set D placed on the mold transport carriage 70 is carried into the mold receiving space 40 between the pair of

rotating plates

20a, 20b, and the magnet clamp 61 is lowered by the mold lifting means 62 to move the upper mold. Next, the upper die D1 is lifted and separated from the lower die D2, and then the lower die D2 is carried forward by the die conveying carriage 70, and then the rotating body 20 and the upper die D1 are moved 180 °. When rotated, the upper mold D1 in an inverted state 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 conveyance carriage 70 and carried into the die receiving space 40, and can be reversed in the same manner as described above.

Since the rotating body 20 and the upper mold D1 are rotated using the rotating body 20 rotatably supported by the pair of rotating

body support portions

11a and 11b of the base 10 and the rotation drive mechanism 30, the upper The structure for reversing the mold D1 could be simplified. Since the upper mold D1 is attracted by the magnet clamp 61 that can be moved up and down by the mold lifting means 62, the structure for clamping and lifting the upper mold D1 is simplified and the mold can be held efficiently.

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

Moreover, the mold conveying carriage 70 is carried into the mold receiving space 40 while the mold set D is placed, and the upper mold D1 and the lower mold D2 are transferred without transferring the mold set D to the mold reversing device 1. Since separation is possible, the structure of the mold reversing device 1 can be simplified and miniaturized, and the time required for separation can be shortened.

After carrying the mold set D into the mold receiving space 40, a series of operations of lowering the magnet clamp 61, attracting, 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 performed efficiently, the mold reversal system S with 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 near the outer periphery of the pin holding plates 31, a sprocket 33 that engages with the plurality of pins 32, and a sprocket The drive motor 34 capable of rotating the drive 33 can be manufactured at a low cost with a simple structure.

The die lifting / lowering means 62 includes a lifting / lowering fluid pressure cylinder 63 which is mounted on the top plate 50 and lifts and lowers the magnet clamp 61, and four guide rods 64. Therefore, the mold lifting / lowering means which operates smoothly with a simple structure. 62 can be realized.

A mold reversal system SA according to the second embodiment will be described.
The same reference numerals are assigned to the same members as those in the mold reversing system S, the description thereof is omitted, and only different configurations are described. The mold reversing system SA includes a mold reversing device 1A and a mold transport carriage 70A.

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

The carriage lifting / lowering means 74 of the mold transfer carriage 70A is four fluid pressure cylinders 75 in a vertical posture attached to four corners of the mold transfer carriage 70A, and the piston rod 75a can come into contact with the rail 72. The four fluid pressure cylinders 75 are configured. With this carriage raising / lowering means 74, the mold conveyance carriage 70A can be raised / lowered together with the mold (mold set D or upper mold D1 or lower mold D2) or independently.

Next, a reversing method for 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 where the top plate 50 is located on the upper side, and the mold conveyance carriage 70A is held at the normal position on the front side of the mold reversing device 1A. Then, the mold set D composed of the upper mold D1 and the lower mold D2 is suspended by a crane and carried onto the mold conveying cart 70A.

In the second step, as shown in FIG. 13, the mold conveyance carriage 70A on which the mold set D is placed 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 mold conveying carriage 70A and the mold set D are raised by the carriage lifting means 74, and the upper mold D1 is attracted by the magnet clamp 61.

In the third step, as shown in FIG. 14, the upper and lower molds D 1 are separated from the lower mold D 2 by switching the die conveyance carriage 70 A and the lower mold D 2 to the lowered position by the carriage lifting / lowering means 74. Next, the mold conveyance carriage 70A on which the lower mold D2 is placed is returned to the retracted position 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 180 ° counterclockwise so as to be reversed, and then the upper die D1 is hung by a crane and the die reversing device. Lift up 1A and carry it out. In parallel with the above, the lower mold D2 is suspended by a crane and moved to the outside.

At this time, as shown in FIG. 16, when the mold conveyance carriage 70A is moved to a retracted position separated from the mold reversing apparatus 1A by a predetermined distance forward, the mold conveyance carriage 70A and the mold reversing apparatus 1A are not connected. Since a work space Sp is formed for the worker to staking the work, the worker enters the work space Sp and hangs the hook on the wire side of the crane on the hook on the side of the upper die D1. It can be performed.

When the diameter of the

rotating plates

20a and 20b of the rotating body 20A of the mold reversing device 1A is larger than the standard width (for example, 1500 mm) of the thin steel plate material, the rotating

plates

20a and 20b are used as shown in FIG. Each of the four disks 20c to be configured is configured by abutting a main plate 20d having a width equal to the standard width and an end plate 20e having a width smaller than the standard width at a butting line L, and as shown in FIG. When the discs 20c are stacked, the phase of the four butt lines L is changed by 90 °, for example. In this way, the rotating

plates

20a and 20b can be manufactured at low cost using a steel plate material having a standard width.

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

Since the holding plate and the mold lifting / lowering means of the mold holding means 60A of the mold reversing device 1A are omitted, it is not necessary to supply fluid pressure to the rotating body 20A, and the rotation driving mechanism is equivalent to the weight reduction of the rotating body 20A. 30 can be reduced in size.

The third embodiment is a partial modification of the mold reversal system SA of the second embodiment. The same reference numerals are given to the same components as those of the first and second embodiments, and the description thereof is omitted.

In the second step, when the mold conveying carriage 70A and the mold set D are raised by the carriage lifting / lowering means 74 and the upper mold D1 is attracted by the magnet clamp 61, there is a gap between the magnet clamp 61 and the upper mold D1. When the magnet clamp 61 is attracted and operated in a state where there is, a loud collision sound and impact are generated.

Therefore, in order to prevent the occurrence of the collision sound and impact described above, an adhesion confirmation means 80 for confirming the adhesion between the magnet clamp 61 and the upper mold D1 is provided as follows, and the adhesion between the magnet clamp 61 and the upper mold D1 is confirmed. The magnet clamp 61 is configured to be attracted later.

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 the proximity switch 81 that is close to the bottom of the rotating plate 20b on the left side of the rotating body 20A from below. And a display lamp (not shown). The proximity switch 81 and the display lamp are electrically connected to the control drive unit.

The proximity switch 81 is attached upward to the upper end of the board 12b on the left side of the base 10 and directly below the rotation axis X of the rotating body 20A. As shown by a two-dot chain line in FIG. 19, when the rotating body 20A is supported by the plurality of idler 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 conveyance carriage 70A and the mold set D are raised by the carriage lifting means 74, and the mold conveyance carriage is further about 2 to 4 mm beyond the state where the upper mold D1 is in close contact with the magnet clamp 61. When 70A and the mold set D are raised, as shown by the solid line in FIG. 19, the rotating body 20A and the rotating plate 20b are in a state of floating about 2 to 4 mm, so the detection signal of the proximity switch 81 is turned OFF. Since the display lamp is switched to green, for example, the contact state between the upper mold D1 and the magnet clamp 61 can be confirmed, and after confirming the contact state, the magnet clamp 61 is operated by suction. In this way, it is possible to prevent the occurrence of the above-described collision sound and impact. In place of the proximity switch 81, a limit switch or a photo interrupter may be used.

Next, an example in which the above embodiment is partially changed will be described.
1) In the above-described embodiment, the case where the upper mold D1 is inverted after separating the mold set D into the upper mold D1 and the lower mold D2 has been 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

mold conveying carts

70 and 70A, carry it into the mold receiving space 40 of the mold reversing device 1 and 1A, and reverse it in the same manner as in the above embodiment.

2) The

rotating plates

20a and 20b, the plate member 40a, the pin holding plate 31 and the like may be formed of a single steel plate instead of a plurality of thin steel plates.
3) Regarding the rotational 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) Instead of the magnet clamp 61 of the mold holding means 60, 60A, it is also possible to employ a plurality of electric or fluid pressure drive type clamping devices.

5) As with the pin holding plate 31 of the rotary drive mechanism 30, the rotating

plates

20a and 20b of the rotating body 20 are arranged in a pair of plate members so as to face each other with a small gap therebetween, and their outer peripheral portions are arranged in the circumferential direction. It is good also as a structure which connected with the several pin member of every small space | interval, and was equipped with the roller with a double collar on the several pin member so that rotation was possible respectively. In this case, the rotating rollers of the rotating

body support portions

11a and 11b of the

substrates

12a and 12b of the base 10 are omitted, and the

rotating plates

20a and 20b are supported by arcuate plate ends.

6) The mold reversal systems S and SA can be applied to various mold sets such as a casting mold set and an injection mold set in addition to a press machine mold set.
7) In addition, those skilled in the art can implement the present invention by adding various modifications without departing from the spirit of the present invention, and the present invention includes such modifications.

The present invention provides an apparatus for separating and inverting mold sets for various uses.

D1 Upper mold D2 Lower mold D Mold set S, SA Mold reversing system 1, 1A Mold reversing device 10

Base

11a, 11b Rotating body support part 14

Rolling roller

20, 20A

Rotating body

20a, 20b Rotating plate

20c Circle Plate

20d Main plate 20e End plate L Abutting line 21 Connecting member 30 Rotation 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 lifting / lowering means 63 Fluid pressure cylinder 64

Guide rods

70 and 70A Mold conveying carriage 74 Carriage lifting / lowering means 75 Fluid pressure cylinder 75a Piston rod Sp Work space 80 Adherence confirmation means

Claims

In a mold reversal system having a mold reversing device capable of receiving a mold and reversing 180 ° and a mold transport carriage,
The mold reversing device is:
A base having a pair of arcuate rotating body 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 support portions and connected by a plurality of connecting members;
A rotational drive mechanism capable of rotationally driving the rotating body;
A horizontal top plate fixedly provided on the upper part of the rotating body;
A mold holding means arranged to be movable up and down below the top plate and capable of holding a mold;
A mold lifting and lowering means mounted on the top plate and capable of driving the mold holding means up and down;
The mold holding means includes a holding plate arranged to be movable up and down on the lower side of the top plate, and a magnet clamp fixed to the holding plate,
The mold lifting / lowering means includes a vertically moving fluid pressure cylinder mounted on the top plate and having a piston rod connected to a holding plate, a lower end fixed to the holding plate, and a guide portion on the top plate side. A plurality of guide rods to be guided;
The mold reversing system, wherein the mold transport carriage is configured to be able to enter a mold receiving space between the pair of rotating plates from a horizontal direction orthogonal to a rotation axis of the rotating body.
In a mold reversal system having a mold reversing device capable of receiving a mold and reversing 180 ° and a mold transport carriage,
The mold reversing device is:
A base having a pair of arcuate rotating body 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 support portions and connected by a plurality of connecting members;
A rotational drive mechanism capable of rotationally driving the rotating body;
A horizontal top plate fixedly provided on the upper part of the rotating body;
A mold holding means disposed on the lower surface side of the top plate and capable of holding the mold;
The mold holding means includes a magnet clamp fixed to the lower surface of the top plate,
The mold conveying carriage is configured to be able to enter a mold receiving space between the pair of rotating plates from a horizontal direction perpendicular to the rotation axis of the rotating body, and the mold conveying carriage is moved up and down together with the mold or independently. A mold reversing system comprising a dolly raising and lowering means that can be driven.
The rotational drive mechanism includes a pair of semicircular pin holding plates fixed to the outer surface of one rotating plate and facing each other with a predetermined gap, and a predetermined small size in the circumferential direction in the vicinity of the outer periphery of these pin holding plates. A plurality of pins fixed at intervals and parallel to the rotational axis, a sprocket provided at one location on the outer peripheral side of the pair of pin holding plates and engaged with the plurality of pins, and a drive capable of rotating the sprocket The mold reversal system according to claim 1, further comprising a motor.
The mold reversing system according to claim 1 or 2, wherein the rotating body support portion includes a plurality of idle rollers.
3. The mold reversing system according to claim 2, wherein the carriage lifting / lowering means includes a plurality of lifting / lowering hydraulic cylinders that are mounted on the mold conveying carriage and the piston rod can abut on the carriage running rail. .
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 reversal system according to claim 1 or 2, wherein the direction of the plurality of rows is directed in a direction intersecting with a direction parallel to a rotation axis of the rotating body.
The mold reversal system according to claim 1 or 2, wherein a work space for an operator to enter and work can be formed between the mold transport carriage and the mold reversing device.
The rotating plate of the rotating body is configured by laminating a plurality of disks, and when the diameter of the rotating body is larger than the width of a steel plate material having a standard width, the disk is a main plate having a width equal to the standard width. The end plate having a width smaller than that of the main plate is abutted with a butt line, and a plurality of butt lines of the plurality of discs are set so as to have different phases, respectively. Mold reversal system as described in.
When the mold lifting carriage and the mold are raised by the carriage lifting and lowering means to bring the mold into close contact with the magnet clamp, there is provided an adhesion confirmation means capable of confirming that the mold and the magnet clamp are in close contact with each other. The mold reversal system according to claim 2.