JPH106345A - Apparatus for exchanging mold - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform exchanging of molds in a short time and to improve productivity by a method wherein a placing stage consisting of a pair of upper and lower stages and placing a used mold on one stage and a mold to be used next on another stage is elevated and lowered just at the front of a manufacturing apparatus and is made to approach and to be separated in the horizontal plane to move it to the exchanging position. SOLUTION: A mold exchanging apparatus 10 on which a mold KZ to be used next is moved just to the front of a vulcanization pressing machine P and is positioned there. A used mold KS is taken out of the vulcanization pressing machine P and is taken up from a platen 98. A lower placing stage 53 is inserted between the used mold KS and the platen 98 and is stopped at an exchanging position T overlapping the used mold K5 and the used mold KS is placed thereon and it is elevated and lowered and separated and retreated from the exchanging position T. An upper placing stage 54 on which the mold KZ to be used next is placed is elevated and lowered and is made to approach and is moved to the exchanging position T and the mold KZ to be used next is delivered to a hoisting mechanism of the vulcanization pressing machine P. Centering work between the mold KZ to be used next and the vulcanization pressing machine P is facilitated thereby and exchanging work can be performed in a short time and productivity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold exchange for exchanging a used mold taken out from a manufacturing apparatus such as a vulcanizing press machine with a next used mold selected and taken out from a mold place with high efficiency. Related to the device.

[0002]

2. Description of the Related Art Conventionally, when exchanging a mold of a manufacturing apparatus, for example, a vulcanizing press, a used mold is removed from the vulcanizing press, and then the apparatus stands by immediately before the vulcanizing press. Transferred to a forklift, then run the forklift to the mold place, return the used mold from the forklift to the mold place, and then select the next used mold stored in the mold place After being taken out, it is transferred to the forklift, and then the forklift is driven to a position immediately before the vulcanizing press, and the next use mold is transferred from the forklift to the vulcanizing press and mounted.

[0003]

However, when the molds are exchanged in this way, the used molds are removed during the mold exchange, that is, while the vulcanizing press is stopped. It is necessary to move the loaded forklift from the vulcanizing press to the mold storage, and the forklift loaded with the next use mold from the mold storage to the vulcanizing press. When transferring the next use mold, it is necessary to perform difficult centering work with the vulcanizing press while the next use mold is suspended in the air, and as a result, it takes a long time to replace the mold and productivity decreases. There is a problem of doing it.

[0004] It is an object of the present invention to provide a mold exchanging apparatus capable of improving productivity by performing mold exchanging in a short time.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to move between a manufacturing apparatus and a mold yard, return a used mold taken out of the manufacturing apparatus to the mold yard, and select a used mold from the mold yard. A mold exchanging device for transferring the next used mold taken out to the manufacturing apparatus, which is supported by the base in a state of being separated from the base up and down. A pair of mounting tables on which a mold to be used is mounted, elevating means for elevating and lowering these mounting tables immediately before the manufacturing apparatus, and contacting and separating means for approaching and separating these mounting tables from the manufacturing apparatus in a horizontal plane. This can be achieved by moving the mounting table to the exchange position where the mold is exchanged with the manufacturing apparatus by the elevating means and the contact / separation means at the time of mold exchange.

In order to change the mold of the manufacturing apparatus, as an external setup, the mold changing device is moved to the mold place, and then the next use mold is selected and taken out from the mold place and the mold is removed. It is mounted on the other mounting table of the changing device, and then the die changing device on which the next use die is mounted is moved to just before the manufacturing device. At this time, since the mounting tables forming a pair are arranged vertically apart from each other, they can be overlapped with each other up and down. As a result, the width of the mold exchanging device can be reduced and the size can be reduced. . Next, a mold exchanging operation is performed. In this case, one of the mounting tables is moved up and down by the elevating means and the contacting / separating means and moved to the exchanging position by approaching the manufacturing apparatus. The removed used mold is placed on the one mounting table. next,
After this one mounting table is moved up and down by the lifting / lowering means, the contact / separation means and retracted from the exchange position, the other mounting table on which the next use die is mounted is moved up / down by the lifting / lowering means, the contact / separation means. It is moved to the replacement position by approaching, and the next use mold is delivered to the manufacturing apparatus from the other mounting table. When reaching the replacement position, the next use mold is placed on the other mounting table, so that the centering work between the next use mold and the manufacturing apparatus becomes easy, and as a result, the exchange work is performed in a short time. Can increase productivity. In addition, as described above, the next use mold can be transported to the manufacturing apparatus immediately before replacement as an external setup, so that the used mold and the next use mold can be used while the conventional manufacturing apparatus is stopped. This eliminates the need for the work of transporting the mold, and as a result, the mold can be changed in a short time, and the productivity is improved.

Further, according to the present invention, the longitudinal direction of the frame and the longitudinal direction of the turntable are made to coincide with each other, and the longitudinal direction of the frame and the turntable is set as the traveling direction, so that the mold is formed. The width of the exchange device can be reduced, which facilitates movement in narrow passageways in the factory. Further, according to the structure of the third aspect, the vulcanizing operation can be restarted immediately after the next use mold is mounted on the manufacturing apparatus, and the productivity is improved. Further, according to the configuration described in claim 4, damage to the mounting table and the like at the time of mold replacement can be prevented.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 1, 2 and 3, the mold changing apparatus 10 has a frame 11 having a gate-shaped vertical section, and the plane shape of the frame 11 is rectangular. Directly above the frame 11, a horizontal turntable 12 having a rectangular shape similar to that of the frame 11 is disposed.
A ring-shaped bearing 13 attached to the center of the upper surface of the frame 11 is interposed between the frame 11 and the frame 11. A plurality of wheels 14 that are circumferentially separated from each other are rotatably supported on the lower surface of the turntable 12 radially outside the bearing 13, and these wheels 14 can roll on the frame 11. As a result, the turntable 12 is
The frame 11 is supported by the frame 11 so as to be able to turn in a horizontal plane with the center of rotation as a turning center. Reference numeral 15 denotes an arc-shaped rack fixed to the lower surface of the turntable 12. The rack 15 extends along a circle centered on the turning center, and external teeth are formed on the outer periphery thereof. Reference numeral 16 denotes a motor mounted on the frame 11, and the motor 16
A pinion 17 that meshes with the rack 15 is fixed to the output shaft. Then, the motor 16 is operated and the pinion
When the 17 rotates, the turntable 12 has a matching position A whose longitudinal direction matches the longitudinal direction of the frame 11 and an orthogonal position B whose longitudinal direction is perpendicular to the longitudinal direction of the frame 11 (matches the transverse direction). Turn 90 degrees between and. The above-described rack 15, motor 16, and pinion 17 as a whole constitute a turning mechanism 18 for turning the turntable 12 in a horizontal plane. Also, the frame 11 and the turntable 12 described above are used.
Constitutes the base 19 as a whole.

Reference numeral 24 denotes a pair of guide rails laid on the upper surface of the turntable 12, and these guide rails
Reference numeral 24 extends in the short direction (width direction) of the turntable 12. Reference numeral 25 denotes a horizontal movable plate disposed immediately above the center of the turntable 12, and sliders 26 respectively engaging with the guide rails 24 are fixed to the lower surface of the movable plate 25. 27 is a cylinder attached to the upper surface of the turntable 12 and extending parallel to the guide rail 24,
The tip of the piston rod of the cylinder 27 is connected to the movable plate 25. As a result, when the cylinder 27 operates, the movable plate 25 moves in the short direction of the turntable 12 while being guided by the guide rails 24.

On the upper surface of the movable plate 25, only two well-known lifters 30 arranged in the longitudinal direction of the turntable 12 are installed. Each lifter 30 is provided with a lower lift member 31 fixed to the upper surface of the movable plate 25. And a horizontal upper lift member 32 disposed immediately above the lower lift member 31, and a link whose lower and upper ends are supported by the lower and upper lift members 31, 32 and whose central portions are connected to each other and cross in an X-shape. 33 (FIG. 7
) And a cylinder 34 that applies a swinging power to one of the links 33 to move the upper lift member 32 up and down.

In FIGS. 1, 2, 3, and 4, the outer sides of the guide rails 24, that is, the upper surfaces of both ends in the longitudinal direction of the turntable 12, extend parallel to the guide rails 24. A pair of guide rails 38 extending in the direction is laid, and sliders 40 fixed to the lower surfaces of the movable plates 39 located on both outer sides of the movable plate 25 are engaged with these guide rails 38, respectively. On the upper surface of each movable plate 39, a pair of columns 41 made of H-shaped steel are erected, and the upper ends of the pair of columns 41 are connected by a connecting plate. 43 is a twin column
The cylinders 43 are vertically extending cylinders disposed between the cylinders 41, and the head sides of these cylinders 43 are rotatably connected to the movable plate 39. Reference numeral 44 denotes a connection plate disposed inside the column 41 and extending in the vertical direction.Rollers 47 and 48 that are in rolling contact with the column 41 via a plurality of brackets 45 and 46 on the outer surface of the connection plate 44 are rotatable. It is supported by. Reference numeral 49 denotes a horizontally extending flat support member installed above the lifter 30, and both ends of the support member 49 are attached to the connection plate 44. Further, the top ends of the pistons 50 of the cylinders 43 are connected to the upper ends of the connection plates 44, and as a result,
When the cylinder 43 operates, the connection plate 44 and the support member 49 move up and down integrally while being guided by the column 41 and the rollers 47 and 48. Reference numeral 51 denotes a cylinder attached to the upper surface of the turntable 12 and extending in parallel with the guide rail 38. The tip of a piston rod of the cylinder 51 is connected to the movable plate 39. As a result, the cylinder 51
When the is operated, the movable plate 39, the column 41, the connecting plate 44, and the support member 49 move integrally in the short direction of the turntable 12 while being guided by the guide rail.

In FIGS. 1, 2, 3, 5, and 6, reference numeral 53 denotes a lower mounting table disposed directly above the upper lift member 32 of each lifter 30, and these two lower mounting tables 53 are used when the lifter 30 is turned. Since they are arranged in the longitudinal direction of the table 12, they are arranged in the longitudinal direction of the turntable 12 similarly to the lifter 30. Numeral 54 denotes two upper mounting tables arranged directly above the support members 49, and these upper mounting tables 54 are arranged along the support members 49, that is, arranged in the longitudinal direction of the turntable 12. These two pairs (two pairs) of the upper mounting table 54 and the lower mounting table 53 are vertically separated from each other, and one of the lower mounting tables 53 is a used mold as described later. However, the next use mold is mounted on the upper mounting table 54 which is the other mounting table. Here, a heating plate 55 as a heating source is mounted on the upper mounting table 54 on which the next use mold is to be mounted, and the heating plate 55 allows heating steam to pass therethrough, or a built-in heating wire. By energizing the
The next use mold is preheated.

A moving mechanism 57 for moving the lower mounting table 53 in the lateral direction of the turntable 12 is provided between the lower mounting table 53 and the upper lift member 32, respectively. And a moving mechanism 58 for moving the upper mounting table 54 in the short direction of the turntable 12, respectively.
Are respectively installed, and these moving mechanisms 57 and 58 have the same structure as described below. These moving mechanisms
57 and 58 have a pair of guide bodies 59 and 60 laid on the upper surface of the upper lift member 32 and the support member 49, respectively, and these guide bodies 59 and 60 extend in the short direction of the turntable 12.
On these guide bodies 59, 60, slide rails 61, 62 extending in parallel to the guide bodies 59, 60 are supported. These slide rails 61, 62 are supported by the guide bodies 59, 60 while being supported by the guide bodies 59, 60. Can move along. 63 and 64 are cylinders installed between the paired guide bodies 59 and 60, respectively, and each cylinder 63 and 64 is an upper lift member 32,
It is connected to the support member 49 via brackets 65 and 66. Brackets 68 fixed to the ends of the piston rods 67 of the cylinders 63 and 64 are connected to the slide rails 61 and 62. As a result, when the cylinders 63 and 64 are operated, the slide rails 61 and 62 are turned on the turntable. When the piston rod 67 protrudes to the stroke end when it moves in the lateral direction of 12, it can protrude (overhang) from the guide bodies 59 and 60 by almost half its length.
Each of the slide rails 61 and 62 described above includes a lower member 69 and the lower member 69.
An upper member 70 is disposed above and slightly away from the upper member 69.A shock absorbing member 72 formed by stacking a plurality of disc springs 71 is interposed between the lower and upper members 69 and 70. ing. In this way, the shock absorbing member 72 is lower,
It is interposed between 53, 54 and turntable 12,
When the mold K is mounted on the lower and upper mounting tables 53 and 54, the shock absorbing member 72 contracts until the lower and upper members 69 and 70 come into contact with each other, and absorbs an impact at the time of mounting. . On the slide rails 61 and 62, a number of rollers 75 and 76 spaced apart in the longitudinal direction of the slide rails 61 and 62 are rotatably supported, and a part of these rollers 75 and 76 is formed on the upper surface of the slide rails 61 and 62. Projecting upwards. And, the lower mounting table 53,
The lower surface of the upper mounting table 54 is in rolling contact with the rollers 75 and 76 of the slide rails 61 and 62, respectively. As a result, the lower and upper mounting tables 53 and 54 are , 62 can be moved. 77 and 78 are cylinders installed on the sides of the cylinders 63 and 64, respectively. The cylinders 77 and 78 are connected to the upper lift member 32 and the support member 49 via brackets 79 and 80, respectively. The piston rod of these cylinders 77 and 78
The tip of 81 is connected to the lower surface of the lower and upper mounting tables 53 and 54, and as a result, when the cylinders 77 and 78 operate,
The lower and upper mounting tables 53 and 54 move in the short direction of the turntable 12, but when the piston rod 81 protrudes to the stroke end, as described above, the slide rails that protrude from the guide bodies 59 and 60 by approximately half the length. It can protrude (overhang) from 61, 62 by almost half its own length, which ensures large movement of the lower and upper mounting tables 53, 54. Reference numerals 82 and 83 denote fixed rails arranged close to the outside of the guide members 59 and 60, and these fixed rails 82 and 83 extend parallel to the guide members 59 and 60. These fixed rails
Numerous rollers 84, 85 spaced apart in the longitudinal direction are rotatably supported by the rollers 82, 83, and some of the rollers 84, 85 project upward from the upper surfaces of the fixed rails 82, 83. And
The rollers 84 and 85 of these fixed rails 82 and 83 are lower and upper
The lower surfaces of the slide rails 61 and 62 can be in rolling contact with the lower surfaces of the slide rails 61 and 62.
75, 76 in cooperation or alone, lower, upper mounting table 53, 54
Can be supported from below. Guide body 5 described above
9, 60, slide rail 61, 62, cylinder 63, 64, 77, 7
8. The fixed rails 82 and 83 constitute the moving mechanisms 57 and 58 described above, respectively.

The lifter 30, cylinder 43,
The connecting plate 44 and the supporting member 49 are entirely formed by using the lower and upper mounting tables 53 and 54 as vulcanizing press machines P (FIGS. 7 and 8).
The lower mounting table 53 is constituted by a lower elevating mechanism constituted by the lifter 30, while the upper mounting table 54 is constituted by an elevating mechanism constituted by the cylinder 43, the connecting plate 44 and the support member 49. Is individually lifted and lowered.
Furthermore, the guide rails 24 and 38 and the movable plate 2
5, 39, the cylinders 27 and 51, and the moving mechanisms 57 and 58 as a whole constitute contacting / separating means 87 for moving the lower and upper mounting tables 53 and 54 toward and away from the vulcanizing press P in a horizontal plane. For this reason, the lower and upper mounting tables 53 and 54 are
6. It is supported by the base 19, specifically the turntable 12, via the contact / separation means 87. Then, when replacing the mold, the elevating means 86, the contacting and separating means 87,
The upper mounting tables 53 and 54 are moved to an exchange position T (see FIGS. 7 and 8) at which the mold is exchanged with the vulcanizing press P.

In FIGS. 1, 2 and 3, positioning mechanisms 90 are respectively attached to the four corners of the frame 11, and each positioning mechanism 90 is supported by a vertically extending cylinder 91 and the tip of a piston rod 92 of the cylinder 91. Ball 93
And is composed of And these positioning mechanisms
90, when the mold exchanging device 10 has been conveyed to the position just before the vulcanizing press P, each ball 93 is pressed against a conical recess 96 of a positioning member 95 installed on the floor surface 94, so that the mold is pressed. The die changing device 10 is positioned with respect to the vulcanizing press P.

In FIGS. 7 and 8, the vulcanizing press P is capable of vulcanizing two green tires simultaneously.
For this reason, two dies K including lower and upper dies are provided side by side in the horizontal direction. In a vulcanizing plant, a plurality of such vulcanizing presses P are arranged side by side in the horizontal direction, and a raw tire placing table is usually installed immediately before each vulcanizing press P. The mold K is heated by the platen 98 during the vulcanization operation. Reference numeral 99 denotes a low-floor transport vehicle driven by a battery, and a mold changing device 10 mounted on the transport vehicle 99 transports the mold between a mold storage (not shown) and immediately before the vulcanizing press P. Then, the used mold Ks taken out of the vulcanizing press P is returned to the mold yard, and the next used mold Kz selected and taken out of the mold yard is transferred to the vulcanizing press P, so that the dies are molded. Exchange of K is performed simultaneously on two sides.

Next, the operation of the embodiment of the present invention will be described. Now, 2 tires are produced by the vulcanizing press P
It is assumed that vulcanized one by one. Then, during such vulcanization, if there is a change in the type of green tire, it is necessary to replace the mold according to the change in the type.

In this case, first, after removing the raw tire table of the vulcanizing press P for performing the mold exchange, the mold exchanging apparatus 10 which has been waiting at the standby position is carried out as an outer setup. And move it to the mold yard through a passage in the factory. During such movement, the turntable 12 is stopped at the matching position A where the longitudinal direction of the turntable 12 matches the longitudinal direction of the frame 11, and the frame 11, the turntable 12
If the longitudinal direction of 12 matches the moving direction, the mold changing device
The width of 10 is reduced, which facilitates movement in narrow passages in the factory. In addition, the lower mounting table 5
4 and 53 are arranged vertically apart from each other as described above, so that the upper and lower mounting tables 54 and 53 can be vertically overlapped just above the center of the turntable 12 in the width direction as shown in FIG. Yes, if you do this, the mold changer
The width of 10 is further narrowed, making it smaller and easier to move. When the mold exchanging device 10 arrives at the mold yard, the next use mold Kz is selected and taken out from the mold yard, and is placed on the upper mounting table 54 of the mold exchanging device 10, specifically, on the heating plate 55. I do. At this time, the shock acting on the upper mounting table 54 is absorbed by the shock absorbing member 72, thereby preventing breakage and the like.

Next, the mold changing apparatus 10 on which the next use mold Kz is mounted is moved by the transport vehicle 99 to just before the vulcanizing press P. Next, the cylinder 91 of each positioning mechanism 90 is actuated to protrude the piston rod 92, the balls 93 are pressed against the conical recesses 96 of the positioning member 95, respectively, and the mold changing apparatus 10 is moved to the vulcanizing press P. Position. At this time, since the green tire rests remain immediately before the adjacent vulcanizing press P, these green tire rests hinder the mold exchanging apparatus 10 for performing the mold exchanging. Stops in a state perpendicular to P (in a state where the straight line connecting the two used dies Ks of the vulcanizing press P and the straight lines connecting the two lower mounting tables 53 and the upper mounting tables 54 are orthogonal). There must be. For this reason, in order to perform the mold replacement work,
The lower mounting table 53 and the upper mounting table 54 (the next use mold)
Kz) is rotated by 90 degrees in the horizontal plane, and the straight line connecting the lower mounting tables 53 and the upper mounting tables 54 is parallel to the straight line connecting the used mold Ks of the vulcanizing press P. In addition, it is necessary to perform operations for positioning the upper and lower mounting tables 53 and 54 immediately before the used mold Ks of the vulcanizing press P. Here, such a work is performed by operating the motor 16 to rotate the pinion 17, thereby turning the rack 15 and the turntable 12 by 90 degrees in a horizontal plane.

When such preparation work is completed, the mold K
In this case, the used mold Ks is first removed from the vulcanizing press P, and is lifted from the platen 98 by a predetermined amount by a lifting mechanism (not shown). Next, the cylinder 27 is operated to move the movable plate 25,
The lifter 30, the moving mechanism 57, and the empty lower mounting table 53 are advanced along the guide rail 24, and approach the vulcanizing press P. At this time, to avoid interference in the post-process,
By operating 43, the piston rod 50 is made to protrude, and the connecting plate 44, the support member 49, the moving mechanism 58, and the upper mounting table 54 supporting the next use mold Kz are integrally raised. Next, after the cylinder 34 of each lifter 30 is operated and the upper lift member 32, the moving mechanism 57, and the lower mounting table 53 are integrally lifted, each cylinder 63 is operated and the piston rod 67 is projected, and the slide rail 61 is moved. Approaches the vulcanizing press P while being guided by the guide body 59. As shown in FIG. 7, the movement of the slide rails 61 is stopped when the slide rail 61 projects (overhangs) from the guide body 59 by almost half its length. At this time, the lower mounting table 53 does not move and the lifter 30 moves. Waiting right above. Next, the cylinder 34 of each lifter 30 is operated and the slide rail 61 is lowered until it comes into contact with the platen 98 of the vulcanizing press P. Next, when the cylinder 77 is operated to project the piston rod 81, the lower mounting table 53 is
While being supported by the rollers 84 and 75 of the slide rail 61 from below, it advances and the used mold Ks of the vulcanizing press P and the platen
Inserted between 98 and. 7 and 8, the lower mounting table 53 protrudes from the slide rail 61 by almost half its length (overhangs), and reaches a replacement position T that vertically overlaps the used mold Ks. When to stop. Next, the lifting mechanism is operated to lower the two used dies Ks removed from the vulcanizing press P, and the used dies Ks are respectively mounted on the lower mounting table 53 at the exchange position T. . At this time, the lower mounting table
Although a large impact may be applied to 53, the slide rail 61 contacts the platen 98 as described above, and a shock absorbing member is provided below the slide rail 61 and between the upper members 69 and 70.
Since the 72 is disposed, such an impact is reliably absorbed, and the lower mounting table 53 and the like are not damaged.

Next, the cylinder 51 is operated to move the movable plate 39, the upper mounting table 54, and the like in a direction away from the vulcanizing press P in order to avoid interference in a later step. Next, when the piston rod 81 of the cylinder 77 is retracted, the lower mounting table 53 on which the used mold Ks is mounted, the slide rail 61 in contact with the platen 98, and the rollers 75 and 84 of the fixed rail 82.
Away from the vulcanizing press P while being supported from below,
It returns just above the lifter 30. Thereafter, the cylinder 34 is operated to slightly raise the upper lift member 32 of the lifter 30,
The slide rail 61 is detached upward from the platen 98.
Next, after the piston rod 67 of the cylinder 63 retracts and the slide rail 61 returns between the lower mounting table 53 and the guide body 59, the cylinder 34 of the lifter 30 is operated to use the used mold.
Ks, the lower mounting table 53, and the upper lift member 32 descend to the initial position. Next, the cylinder 27 is operated and the used mold Ks, the lower mounting table 53, the lifter 30, and the movable plate 25 are turned on the turntable.
It returns to the center in the width direction of 12.

When the lower mounting table 53 is moved up and down by the elevating means 86 and the contacting / separating means 87 and separated from the vulcanizing press P to retreat from the exchange position T, the cylinder 27 is used to avoid interference in the subsequent process. Operating the used mold Ks,
The lower mounting table 53, the lifter 30, and the movable plate 25 are separated from the vulcanizing press P. Next, the cylinder 51 is operated to move the movable plate 39, the column 41, the support member 49, and the upper mounting table 54 close to the vulcanizing press P, and the piston rod 50 of the cylinder 43 is retracted and preheated by the heating plate 55. The next use die Kz, the upper mounting table 54, and the support member 49 are lowered. The state at this time is shown in FIG. next,
The piston rod 67 of the cylinder 64 is made to protrude, and the slide rail 62 is moved forward until it protrudes from the guide body 60 by almost half the length, and approaches the vulcanizing press P. At this time, the upper mounting table 54 does not move and waits immediately above the support member 49. Next, the piston rod 50 of the cylinder 43 is retracted slightly, and the slide rail 62 is lowered until it comes into contact with the platen 98 of the vulcanizing press P. Next, the piston rod of cylinder 78
When the 81 is protruded, the upper mounting table 54 on which the next use mold Kz is mounted is fixed rail 83, the roller 85 of the slide rail 62,
It moves forward while being supported from below by 76. The upper mounting table 54 moves when the upper mounting table 54
, And stops when the next use mold Kz reaches the exchange position T where the mold exchange is performed with the vulcanizing press P. After the upper mounting table 54 on which the next use mold Kz is mounted is moved up and down by the lifting / lowering means 86 and the contact / separation means 87 and moved to the exchange position T, the vulcanizing press machine is moved from the upper mounting table 54. The next use mold Kz is delivered to the lifting mechanism of P.
When the replacement mold T reaches the replacement position T, the next use mold Kz is placed on the upper mounting table 54, so that the centering work between the next use mold Kz and the vulcanizing press P becomes easy, and as a result, In addition, the replacement work can be performed in a short time, and the productivity is improved. In addition, as described above, the next use mold
Since Kz can be transported immediately before the vulcanizing press P just before the exchange, the work of transporting the used mold and the next used mold while the vulcanizing press P is stopped as in the related art. Is unnecessary, and as a result, the mold can be changed in a short time, and the productivity is improved.

Next, when the piston rod 81 of the cylinder 78 is retracted, the empty upper mounting table 54 is
2. While being supported by the rollers 76 and 85 of the fixed rail 83 from below, it is separated from the vulcanizing press P and returns to just above the support member 49. After that, the piston rod 50 of the cylinder 43 is slightly protruded, and the slide rail 62 is detached upward from the platen 98. Next, the piston rod 67 of the cylinder 64 is retracted, and the slide rail 62 is moved to the upper mounting table 54 and the guide body 60.
And then return to the piston rod 50 of the cylinder 43.
To raise the upper mounting table 54 to the initial position. Next, the cylinder 51 operates to return the upper mounting table 54 and the support member 49 to the center in the width direction of the turntable 12, and the cylinder 27 operates to use the used mold Ks, the lower mounting table 53, the lifter 30, and the movable The plate 25 returns to the center in the width direction of the turntable 12, and overlaps with each other vertically. At this time, the lifting mechanism is operated to lower the next use mold Kz to a position above the platen 98, and is attached to the platen 98. Thereafter, the green tire rest is returned to just before the vulcanizing press P, and the green tire is vulcanized using the next die Kz. The next die Kz is mounted on the vulcanizing press P. The vulcanizing operation can be restarted immediately because the heating is performed by the heating plate 55 of the mold exchanging device 10 immediately before the mold exchanging apparatus 10, and the productivity is improved.

Next, the motor 16 is operated to rotate the pinion 17, whereby the rack 15 and the turntable 12 are moved 90 degrees.
The turntable 12 is turned by a degree in the horizontal plane so that the longitudinal direction of the turntable 12 matches the longitudinal direction of the frame 11. In this state, the mold exchanging device 10 is moved to the mold yard by the transport vehicle 99, and the used mold Ks is returned to a predetermined position of the mold yard,
Move to the standby position and wait.

In the above-described embodiment, the vulcanizing press P is used as a manufacturing device. However, in the present invention, any device that mounts a mold and manufactures an article can be used. Good. Further, in the above-described embodiment, the used mold Ks is mounted on the lower mounting table 53, and the next used mold Kz is mounted on the upper mounting table 54. The used mold Ks may be mounted on the mounting table 54, and the next used mold Kz may be mounted on the lower mounting table 53.
Further, in the above-described embodiment, the mold changing device 10 is moved between the vulcanizing press P and the mold storage by the carrier vehicle 99. In the present invention, the wheel is attached to the mold changing device. Alternatively, a motor for driving and rotating the wheels may be installed and run between the vulcanizing press P and the mold yard by self-running.

[0026]

As described above, according to the present invention, it is possible to improve productivity by performing a mold change in a short time.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a view taken in the direction of arrows II in FIG. 1;

FIG. 5 is a partially broken plan view near a mounting table.

6 is a sectional view taken along the line II-II in FIG.

FIG. 7 is a schematic front view illustrating an operation state.

FIG. 8 is a schematic plan view illustrating an operation state.

FIG. 9 is a schematic front view illustrating another operation state.

[Explanation of symbols]

 10 ... Die changer 11 ... Frame 12 ... Turn table 19 ... Base 53,54 ... Placement table 55 ... Heating source 86 ... Elevating means 87 ... Contacting / separating means Ks ... Used mold Kz ... Next use mold P ... Manufacturing Device T ... Replacement position

Claims (4)

[Claims] The present invention relates to a method of manufacturing a mold to be used, wherein the mold is moved between a manufacturing apparatus and a mold yard, and a used mold taken out of the manufacturing apparatus is returned to the mold yard. A mold exchanging device to be delivered to an apparatus, in which a base is supported by a base in a vertically separated state, and one of them is a used mold, and the other is a pair in which a next used mold is placed. A mounting table, comprising: a lifting means for raising and lowering these mounting tables immediately before the manufacturing apparatus; and a contacting / separating means for approaching and separating these mounting tables in a horizontal plane with respect to the manufacturing apparatus.
A mold exchanging device wherein the mounting table is moved to an exchanging position for exchanging a mold with a manufacturing apparatus by the elevating unit and the contacting / separating unit. 2. A base having a rectangular shape in a plane, a frame having a rectangular shape in a plane, and being supported by the frame so as to be pivotable in a horizontal plane. 2. The die changing device according to claim 1, further comprising a turntable that supports the mounting table, two of the one and the other mounting tables being provided, and the mounting tables being arranged in the longitudinal direction of the turntable. 3. The mold exchanging apparatus according to claim 1, wherein a heating source is provided on said other mounting table, and preheating is performed before the next use mold is delivered to the manufacturing apparatus. 4. The mold according to claim 2, wherein an impact absorbing member is interposed between the mounting table and the turntable to absorb an impact when the mold is mounted on the mounting table. Exchange equipment.