JPH0714530B2 - Mold changing equipment for extrusion molding machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage means for loading and storing a plurality of molds on a pallet, and a transfer means for transferring the molds between the storage means and a transfer position. The present invention relates to a mold exchanging facility for an extrusion molding machine, which is provided with a die carrier provided in the extrusion molding machine and a transfer means for transferring the mold between the transfer position.

[0002]

2. Description of the Related Art When changing the lot of an extruder, it is necessary to replace the mold. That is, the die to be used next is loaded on the die carrier in which the die is not loaded, and the die is returned from the die carrier loaded with the used die to the storage means. Conventionally, as disclosed in Japanese Patent Application No. 1-219371 of the applicant of the present invention, a monorail type moving vehicle is provided with a vertically movable hanger, and the hanger is engaged with the upper end of the die for carrying. Was configured as.

[0003]

Since it is not permitted in safety management to drop the mold during transportation, it is necessary to secure the locking of the mold by the hanger. That is, when the upper end of the mold is locked to the hanger, it is desirable that the positional relationship between the hanger and the mold be accurately matched. However, since there are multiple types of mold sizes, it is necessary to detect the mold position and accurately control the mold and hanger positions in order to accurately match the positional relationship between the hanger and the mold. There is. Therefore, the structure of the device becomes complicated.

By the way, a heating furnace for heating a die as a mold is provided in the middle of the transfer path. Generally, the dice are taken in and out from the heating furnace in a lateral direction. Therefore, it is not possible to take in and out the dice by using the lifting and lowering of the hanger in the above-mentioned conventional technique, and it is necessary to separately provide a structure for taking in and out the dice, and the structure of the device becomes complicated. An object of the present invention is to eliminate the above-mentioned conventional drawbacks and to obtain a mold exchanging equipment for an extruder which is excellent in safety while simplifying the structure of the apparatus.

[0005]

In order to achieve this object, the first characteristic construction of the mold exchanging equipment of the extrusion molding machine according to the present invention is such that the pallet is in a predetermined loading posture.
It is configured to hold , and the transport means is configured to transport the pallet.

In a second characteristic configuration, the transfer means is configured to be transferred by a transfer vehicle having a pallet support tool that can be horizontally withdrawn and raised and lowered, and heats a die as the mold. That is, the heating furnace is provided on the lateral side of the transfer path of the transfer means.

[0007]

[Operation] In the first characteristic configuration, the outer shapes of the pallets are unified.
The positioning of the pallet is relatively easy as it can be done . Therefore, when the pallet is transferred from the storage means or the transfer means to the transfer means, the positional relationship between the transfer means and the pallet can be easily matched.

In the second characteristic configuration, the dice can be taken in and out of the heating furnace by moving the pallet support tool in and out. Originally, the pallet support is provided for transferring the pallet to and from the storage means and the transfer means.

[0009]

According to the first characteristic configuration, the positional relationship between the transfer means and the pallet when transferring the pallet from the storage means or the transfer means to the transfer means is irrespective of the size of the mold.
Since they can be easily matched, the safety can be improved without complicating the structure of the device.

In the second characteristic configuration, in order to transfer the pallet between the storage means and the transfer means, the pallet support tool originally provided can be used to move the die in and out of the heating furnace. The device structure can be simplified.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an extrusion molding machine M including two die carriers 1 and a die carrier supply means C is provided. That is, while one die carrier 1 is positioned online and extrusion molding is performed, the die 2 and the bolster 3 as a die to be used next are transferred to the other off-line die carrier 1. By setting it up, it is possible to plan a changeover flight due to a lot change. A die exchange facility for transferring the die 2 and the bolster 3 to the die carrier 1 on the off-line is provided. In addition, 11 in the figure
Is a billet yard, 12 is a billet transport line that transports the billet from the billet yard 11 to the extruder M, and 13 is a billet heater.

The mold changing equipment will be described below. As shown in FIG. 1, a storage facility 4 serving as a storage unit that stores a plurality of dies 2 and a plurality of bolsters 3 on a pallet 5, respectively, and a storage facility 4 for the dice 2 and the bolster 3 and a transfer position. Transfer facility 6 as a transfer means for transferring between
And a transfer equipment 7 as transfer means for transferring the die 2 and the bolster 3 between the die carrier 1 provided in the extrusion molding machine M and the transfer position.

First of all, the pallet 5 will be described. As shown in FIGS. 2 and 3, a pair of front and rear mold contact portions 52 are horizontally provided on a frame 51 having a quadrangular shape in plan view. The mold contact portion 52 is provided with a plurality of holes 54 for inserting and fixing the pins 53 for fixing the mold. Then, four pins 53 are inserted into the holes 54 at predetermined positions according to the sizes of the molds 2 and 3 to be loaded on the pallet 5. In other words, the molds 2 and 3 are stacked on the mold contact portion 52 so as to be inscribed in the four pins 53, so that the molds 2 and 3 can be held in a predetermined stacking posture.

The storage facility 4 will be described with reference to FIG.
As shown in FIG. 2, two rows of high-rise three-dimensional storage shelves 41 are juxtaposed,
A stacker crane 42 that carries out and puts in and out of the storage shelves 41, a load receiving table 43 for interposing the die 2 between the stacker crane 42 and a first transfer path L1 described below, a stacker crane 42 and a first described below. A self-propelled carriage 44 for intermediating the bolster 3 between the two transport paths L2 is provided. Incidentally, reference numeral 100 in the drawing denotes a self-propelled carriage for transporting the molds 2 and 3 between the storage facility 4 and a preliminary storage facility (not shown) which is larger in scale.

The receiving table 43 has a receiving point P1 and a leaving point P.
2 are provided respectively. Each receiving tray 43 is shown in FIG.
And as shown in FIG. 6, the four pillars 43 a and the pillar 43
a pair of left and right main frames 4 attached to the upper part of a
3b and a plurality of guides 43c. The space between the guides 43c is formed so as to become narrower toward the bottom. Therefore, when the pallet 5 is placed on the main frame 43b, the side surface of the pallet 5 is lowered while contacting the guide 43c, whereby the pallet 5 can be positioned.

The self-propelled carriage 44, as shown in FIGS. 4 and 7, has a first transfer position P3 with respect to the stacker crane 42.
And a carriage 44a that travels on a rail 45 that is laid between a second transfer position P4 for the transport vehicle V, which will be described later, and a mounting portion 44b for the pallet 5. The mounting portion 44b is
Similar to the load receiving base 43, it has four pedestals 44c, a pair of left and right main frames 44d, and a plurality of guides 44e. In the figure, 44f is a motor for driving the traveling wheels 44g, and 44h is a cable bear for supplying power to the motor 44f.

The procedure for unloading the dice 2 and the bolster 3 from the storage facility 4 is as follows. (1) Move the pallet 5 loaded with the dies 2 up and down the stacker crane 42 .
And, it is placed on the load receiving table 43 at the shipping location P2 by the fork 42a which can be freely moved in and out. (2) The pallet 5 loaded with the bolster 3 is placed on the fork 4 of the stacker crane 42 .
It is mounted on the mounting portion 44b of the self-propelled carriage 44 at the first transfer location P3 by 2a . (3) Move the self-propelled carriage 44 to the second transfer point P4.

The transfer facility 6 will be described with reference to FIG.
As shown in FIG. 2, the two transport routes L1 and L2 are provided in parallel, and the transport vehicle V that travels on the respective transport routes L1 and L2 is provided. By the way, at the end of the second transport path L2, the stop position P5 corresponds to a transfer position P6 described later,
It is provided in several places. Further, a plurality of heating furnaces 69 for heating the dice 2 in a state of being sandwiched between both the transfer paths L1 and L2 are provided alongside the transfer paths L1 and L2. It should be noted that the heating furnace 69 is provided with opening and closing ports on the sides facing both the transfer paths L1 and L2, respectively, and the dies 2 loaded from the first transfer path L1.
After being heated, the paper is unloaded from the second transfer path L2. Further, reference numeral 68 in the drawing denotes a temporary placing table, which is configured similarly to the cargo receiving table 43.

The carrier vehicle V, as shown in FIGS. 8 and 9,
A trolley 61 running on the rails 60 and a fork device 62 as a pallet support that can be moved back and forth in the lateral direction of the trolley 61 and can be raised and lowered. Fork device 62
Is a base frame body 62a that is attached to the carriage 61 so as to be able to move up and down, an intermediate frame body 62b that expands and contracts in the lateral direction with respect to the base frame body 62a, and a further lateral direction with respect to the intermediate frame body 62b. And a front end frame 62c that expands and contracts. Although not shown, power supply rails that supply signals and electric power for driving the traveling wheels 63 of the dolly 61 and the fork device 62 are provided along the respective transport paths L1 and L2.

From the exit point P2 to the stop position P5 of the die 2.
The procedure for transporting to is as follows. (1) The transport vehicle V on the first transport path L1 is moved to the exit point P2. (2) The fork device 62 is driven to receive the pallet 5 on the load receiving table 43. (3) Move to the side of the predetermined heating furnace 69. (4) The fork device 62 is driven to carry the pallet 5 into the heating furnace 69. (5) After heating, the pallet 5 is unloaded from the heating furnace 69 by the transport vehicle V on the second transport path L2. (6) The transport vehicle V on the second transport path L2 is moved to the predetermined stop position P.
Go to 5. When the dies 2 are loaded, the pallets 5 are transported via the temporary placing table 68.

The procedure for transporting the bolster 3 from the second transfer position P4 to the stop position P5 is as follows. (1) Place the carrier V on the second carrier path L2 at the second transfer location P4
Move to. (2) The fork device 62 is driven to receive the pallet 5 on the mounting portion 44b of the self-propelled carriage 44. (3) The transport vehicle V on the second transport path L2 is moved to a predetermined stop position P.
Go to 5.

The transfer equipment 7 will be further described. The transfer equipment 7 is provided with a two-system self-propelled carriage 8 and a transfer device 9. As shown in FIGS. 10 and 11, each self-propelled carriage 8 has a stop position P.
5, a carriage 82 traveling on a rail 81 laid between a transfer position P6 for the transport vehicle V located at 5 and a delivery point P7 for a transfer device 9 described later, and a pair of mounting portions 83,
Hydraulic device 84 for raising and lowering the mounting portion 83 with respect to the carriage 82
It has and. The placing portion 83 is located at the lower limit when transferring the pallet 5 to and from the transport vehicle V, and at the upper limit when transferring the pallet 5 to the transfer device 9. The placing portion 83 may be located at the upper limit when transferring the pallet 5 to / from the transport vehicle V, and may be located at the lower limit when transferring the pallet 5 to / from the transfer device 9,
Alternatively, the mounting portion 83 is fixed to the carriage 82, and the pallet 5 is transferred between the transfer vehicle 9 and the transfer vehicle V at the same level. Is also good. Each mounting portion 83 has a plurality of pedestals 83a and a pair of left and right main frames 83b, similar to the load receiving base 43.
And a plurality of guides 83c. Then, the dice 2 is loaded on the upstream mounting portion 83, and the bolster 3 is loaded on the downstream mounting portion 83, respectively. 8 in the figure
5 is a motor for driving the traveling wheels 86, and 87 is a cable bear for supplying power to the motor 85.

The transfer device 9 will be described. As shown in FIGS. 12 to 15, a frame body 93 that is movable along a guide rail 92 provided on the base frame 91 is provided.
The frame 93 is provided with a pinion 93a that engages with the rack 91a provided on the base frame 91, and an electric motor 93b that drives and rotates the pinion 93a. Frame 93
Is provided with a pair of rails 94 in a direction orthogonal to the moving direction of the frame body 93, and an article support portion 95 movable along the rails 94 is provided. The article support unit 95 is provided with a pinion 95b that engages with a rack 93c provided on the frame 93, and an electric motor 95c that drives and rotates the pinion 95b. The article supporter 95 is provided with a hanger arm 96 that is vertically movable and is openable / closable for attachment / detachment of a transported object. Reference numeral 96a in the figure denotes an air cylinder for raising and lowering the hanger arm 96.

Further, the set position P below the article support portion 95
8 is provided with a set base 97 for setting the die 2 and the bolster 3 supplied via the self-propelled carriage 8, and the used die 2 and the bolster 3 returned from the extrusion molding machine M are also divided at the separating position P9. A dividing table 98 is provided for this purpose. As shown in FIGS. 16 and 17, the set table 97 includes a die receiving frame 97b that is movable along a pair of rails 97a and a bolster receiving frame 97c. Then, as shown in FIG. 16, the die receiving frame 9
7b and the bolster receiving frame 97c are separated from each other, the dies 2 and the bolster 3 are supplied from the self-propelled carriage 8, and then the die receiving frame 97b and the bolster receiving frame 97c are moved close to each other so that they can be set. There is. In the figure, 97d and 97e are cylinders for moving the receiving frames 97b and 97c. On the other hand, the dividing table 98 supplies the die 2 and the bolster 3 from the extrusion molding machine M in a state where the die receiving frame 98b and the bolster receiving frame 98c are close to each other, and then the die receiving frame 98b and the bolster receiving frame 98c.
It can be divided by moving and away from each other. In the figure, 98d and 98e are motors for moving the receiving frames 98b and 98c.

The transfer procedure of the die 2 and the bolster 3 in the transfer equipment 7 is as follows. When the die 2 and the bolster 3 are transferred from the transfer position P6 to the extrusion molding machine M, (1) the self-propelled carriage 8 is moved to the transfer position P6, and then the transfer vehicle V located at the stop position P5 is transferred to the die 2. Receive bolster 3. (2) Move the self-propelled carriage 8 to the delivery point P7. (3) The article support unit 95 is moved to the delivery point P7. (4) The hanger arm 96 is lowered to receive the dice 2 and the bolster 3 and supply them to the set table 97. (5) The set dice 2 and bolster 3 are received and moved from the set position P8 to a transfer location P10 described later. (6) Lower the hanger arm 96 to transfer the position P1
The die 2 and the bolster 3 are transferred to the empty die carrier 1 at 0. By the way, when the die 2 and the bolster 3 are returned from the extrusion molding machine M to the transfer position P6, the above-mentioned route may be substantially reversed, but instead of the set table 97, the dividing table 98 is used. .

Next, the die carrier supply means C provided in the extrusion molding machine M will be briefly described. 18 to 2
As shown in 0, the holding member 2 is movable on the off-line of the extrusion molding machine M in the direction along the extrusion direction of the billet.
0 is provided. The holding member 20 is configured to be capable of positioning and holding the two die carriers 1 and moving the respective die carriers 1 to the transfer location P10 and the retreat location P11. Then, the transfer device 9 transfers the set die 2 and bolster 3 to the empty die carrier 1 at the transfer location P10. Reference numeral 21a in the figure is an air cylinder for moving the holding member 20. Further, a locking member 21 that is movable in a direction intersecting the billet pushing direction is provided.
With this locking member 21 moved to the offline side,
By driving the holding member 20 to move the die carrier 1 to the transfer position P10 and the retreat position P11, the die carrier 1 and the locking member 21 can be engaged and disengaged. Then, by moving the locking member 21 while the die carrier 1 is locked to the locking member 21, the die carrier 1 can be moved to the transfer position P10 which is offline and online. There is.

The procedure for exchanging the die 2 and the bolster 3 in the extruder M is as follows. (1) The die 2 and bolster 3 to be used next are transferred to the empty die carrier 1 in the transfer position P10 in advance, and the die carrier 1 is retracted to the retracted position P11. (2) At the time of setup change, first, the seated die carrier 1 loaded with the used dice 2 and the bolster 3 is moved from online to the transfer position P10. (3) The air cylinder 21a is operated, and the die carrier 1 on which the die 2 and the bolster 3 to be used next are loaded.
Is moved to the transfer position P10. (4) The die carrier 1 is moved online and used for extrusion molding. (5) On the other hand, the die carrier 1 on which the used die 2 and the bolster 3 are loaded is moved to the transfer position P10 again,
The dice 2 and the bolster 3 are separated by the transfer device 9
Reprinted in 8.

Next, the procedure for exchanging the die 2 and the bolster 3 in the die exchanging equipment of the extruder will be described with reference to FIG. First, a predetermined die 2 and bolster 3 are unloaded and supplied to the transfer device 9. In addition, dice 2
Is supplied after being heated in the heating furnace 69. After being set on the set table 97, the transfer device 9 transfers the transfer to the die carrier 1 in the vacant state on the offline. Then, when the lot is changed, the die carrier 1 is moved online and used for extrusion processing. The used dice 2 and the bolster 3 are stored in predetermined shelves after being separated by the dividing table 98.

[Other Embodiment] In the above embodiment, the die 2 and the bolster 3 correspond to the mold, but the invention can be applied to the case where only the die 2 corresponds. In the above-described embodiment, the pallet 5 is placed and transported by the transport vehicle V, but may be hung and transported, and the pallet support tool 62 may be used.
The specific configuration of each unit can be changed in various ways. It should be noted that reference numerals are added in the claims to make the object of the drawing convenient,
The present invention is not limited to the configuration of the attached drawings by the above-mentioned entry.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a mold exchanging facility.

FIG. 2 is a perspective view of a pallet

[Figure 3] Side view of pallet

FIG. 4 is a plan view of the main part of the storage facility.

FIG. 5 is a perspective view of a mounting portion.

FIG. 6 is a side view of a main portion of a mounting portion.

[Figure 7] Side view of a self-propelled trolley for storage equipment

FIG. 8 is a front view of a carrier vehicle.

FIG. 9 is a side view of a carrier vehicle.

FIG. 10: Side view of a self-propelled trolley for transfer equipment

FIG. 11 is a front view of a self-propelled trolley of the transfer equipment.

FIG. 12: Side view of transfer equipment

FIG. 13 is a plan view of transfer equipment.

FIG. 14 is a front view of the main part of the transfer device.

FIG. 15 is a side view of the main part of the transfer device.

FIG. 16 is a side view of a main portion of a set table and a division table.

FIG. 17 is a plan view of a main part of a set table and a split table.

FIG. 18 is a side view of the main part of the die carrier supply means.

FIG. 19 is a vertical sectional side view of the extruder.

FIG. 20 is a front view of the main part of the die carrier supply means.

FIG. 21 is an explanatory diagram showing a mold replacement procedure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Die carrier 2, 3 Mold 4 Storage means 5 Pallet 6 Transfer means 7 Transfer means 62 Pallet support tool 69 Heating furnace M Extrusion molding machine V Transfer vehicle

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Hideo Nishimura 600 Osawaya, Johana-cho, Higashitonami-gun, Toyama Prefecture (72) Inventor Takeshi Okubo 103 (72) Innovator, Fukuno-cho, Higashitonami-gun, Toyama Prefecture Yasuo Nakano Toyama 1332-4 Sakaemachi, Kosugi-cho, Imizu Prefecture (72) Inventor Takao Hayashi 44-6 Hagifushinmachi, Takaoka City, Toyama Prefecture (72) Inventor Satoshi Kuminato 7-8 Nishishinminato, Shinminato City, Toyama Prefecture Inventor Futaki Masahiro 2-14-5 Shiba, Minato-ku, Tokyo Daifuku Co., Ltd. Tokyo Head Office (72) Inventor Kaoru Morimoto 2-14-5 Shiba, Minato-ku, Tokyo Daifuku Co., Ltd. Tokyo Head Office (56) References Special Kaisho 60-154818 (JP, A)

Claims (2)

[Claims] 1. A storage means (4) for loading and storing a plurality of molds (2), (3) on a pallet (5) respectively, and the molds (2), (3) for the storage. Transporting means (6) for transporting between the means (4) and the transfer position, and the mold (2),
Transfer means (7) for transferring (3) between the die carrier (1) provided in the extrusion molding machine (M) and the transfer position.
And a pallet (5) configured to hold the molds (2) and (3) in a predetermined stacking posture. (6) is a die exchange facility of an extrusion molding machine configured to convey the pallet (5). 2. The transfer means (6) is configured to transfer by a transfer vehicle (V) having a pallet support tool (62) that can be horizontally retracted and raised and lowered, and is used as the mold. The mold exchanging equipment for an extrusion molding machine according to claim 1, wherein a heating furnace (69) for heating the die (2) is provided beside the transfer means (6) in the middle of the transfer path.