JPH0966543A - Mold replacing device of horizontal injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent damage to a hose and a cable by guiding a first hose bare in such a state that a part of first and second passage systems becomes freely movable and bendable so as to permit a mold between preparation and replacement positions to move and guiding a second hose bare so that the fluid passage hose and electric signal cable common to both systems become freely movable and bendable so as to permit the mold to move the replacement position and a set position. SOLUTION: When a mold 2 is transferred between a preparation position and a replacement position, a transfer truck 21 is moved left and right but the hoses 69, 87 of the first and second passage systems 24, 25 extending from a temp. control unit 23 to the relay block 77 of the transfer truck 21 can be regularly arranged by a first hose bare 26. When the mold 2 is transferred from the replacement position to a set position, the mold 2 and a movable plate 35 are integrally moved and driven in a feed-out direction with respect to the transfer truck 21 by a mold transfer mechanism and the hoses 70, 88 of the first and second passage systems 24, 25 extending from the transfer truck 21 to relay blocks 71, 89 can be regularly arranged by second hose bares 27, 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold exchanging device for an injection molding machine, and more particularly to an improved structure for arranging a fluid passage hose from a temperature control unit to a mold and an electric signal line cable.

[0002]

2. Description of the Related Art A mold of an injection molding machine is composed of a fixed mold and a movable mold. The fixed mold is fixed to a fixed platen. The movable mold is fixed to the movable platen and the movable platen is reciprocated in a mold clamping direction. , A synthetic resin material is supplied into the mold to perform molding. When molding a synthetic resin product, the mold is molded while cooling it with cooling water, and when molding a synthetic rubber product, the mold is molded while heating it with a heater. In many cases, one or more hydraulic cores driven by hydraulic actuators are provided in the mold. Therefore, it is necessary to connect a plurality of fluid passage hoses, a plurality of electric signal line cables, and the like to the mold in order to supply and discharge cooling water or pressurized oil extending from the temperature control unit.

A mold exchanging device of an injection molding machine is configured such that a mold is set at a position between a fixed platen and a movable platen, a replacement position separated from the set position in the mold loading / unloading direction, and a mold clamping process from this exchange position. It is configured so that it can be transferred to and from a preparation position that is distant in the direction, and at the preparation position, connect the hose / cables to the mold to be used next and adjust the temperature to change the mold. , Separate the hoses and cables, move them to the replacement position, carry in from the replacement position to the set position, fix the fixed mold to the fixed platen and the movable mold to the movable platen,
After that, the hoses are connected to the fixed mold and the movable mold respectively, and then molding is started.

In the case of a large mold, a fixed mold and a movable mold each have 4 to 6 hoses and a plurality of electric signal lines.
Since ~ 2 cables are often connected, a great deal of labor is required to separate and connect the hoses and cables, and if the hoses and cables are separated during mold replacement, The temperature control of the mold will stop.

Therefore, in the mold exchanging device disclosed in Japanese Patent Publication No. 1-48848, a pair of mold placing portions is provided so that the mold can be exchanged while the hoses and cables are connected to the mold. A transfer carriage provided with is provided, the transfer carriage is transferred in the mold clamping direction, and the mold is configured to be transferable between the preparation position and the exchange position, and the mold is transferred between the set position and the exchange position. An endless chain type transfer mechanism for transferring molds is provided, and in order to guide the hoses and cables that extend from the heating device (temperature control unit), it extends from the heating device and rises upward between the transfer carriage and the injection molding machine in the horizontal direction. To the fixed platen and open at the open end near the fixed plate.
Cables are installed and guided from the open end to the outside, and they are extended in a suspended manner and connected to the mold. Therefore, after the hoses and cables are once connected to the mold at the preparation position, the mold can be transferred from the preparation position to the replacement position and then from the replacement position to the set position in the connected state.

[0006]

In the conventional mold changing apparatus, after connecting the hoses and cables to the mold at the preparation position, the connection is separated and the mold is transferred to the setting position when the mold is changed. However, since it is necessary to connect the hoses and cables to the mold again after that, a great deal of labor is required for connection and disconnection, the load of the mold replacement work is large, and the work efficiency is reduced. In the mold exchanging device described in the above publication, since the hoses and cables coming out of the collecting pipe are loosely extended and connected to the mold, the hose and cables cannot be arranged in an orderly manner, and the hoses and cables are If the mold is large and the moving stroke of the movable mold is large, the hose
There is a problem in that it is not possible to cope with the moving stroke of the mold opening only by the amount of sagging of cables. The object of the present invention is to be able to deal with orderly arrangement of hoses and cables, prevention of damage to hoses and cables, and a large stroke of mold opening movement in a mold changing device of an injection molding machine. And so on.

[0007]

According to another aspect of the present invention, there is provided a mold exchanging device for an injection molding machine, comprising: a mold including a fixed mold and a movable mold,
At the set position between the fixed plate and the movable plate of the horizontal injection molding machine, at the exchange position that is away from the set position in the loading / unloading direction, and at the preparation position that is away from the exchange position in the mold clamping direction. In a mold exchanging device for transferring across a mold, a transfer carriage that includes a mold mounting portion and transfers a mold mounted on the mold mounting portion between a replacement position and a preparation position, and a transfer carriage. And a fixed mold and a movable mold, and a mold transfer means capable of transferring the mold between an exchange position and a set position, and a fixed temperature provided on the floor side, and a temperature control fluid for the mold. A first flow forming a temperature control unit that supplies at least one of pressurized oil and is electrically connected to an electric device of a mold, a fluid passage connecting the temperature control unit and the fixed mold, and an electric signal line. Road system,
And a second flow path system that constitutes a fluid passage and an electric signal line connecting the temperature control unit and the movable mold, and first and second flow paths so as to allow the mold to move between the preparation position and the replacement position. A first hose bear common to both systems for guiding a fluid passage hose forming a part of the system and an electric signal line cable through a movable bent portion;
1 common to both systems for guiding a fluid passage hose forming a part of the first and second flow passage systems and an electric signal cable through a movable bending portion so as to allow movement of the mold between the exchange position and the set position. And one or an independent pair of second hose bears.

In this mold exchanging device, a mold in which a fixed mold and a movable mold are paired, and the mold is carried out with respect to the set position between the fixed plate and the movable plate of the horizontal injection molding machine and the set position. The transfer can be performed over an exchange position, which is separated in the carrying-in / out direction, and a preparation position, which is separated from the exchange position in the mold clamping direction. The transfer carriage is provided with a mold mounting portion, and transfers the mold mounted on the mold mounting portion between the replacement position and the preparation position. The mold transfer means is attached to the transfer carriage and the fixed mold and the movable mold,
The mold can be transferred between the exchange position and the set position. The temperature control unit is fixedly provided on the floor side, supplies at least one of a temperature control fluid and pressurized oil to the mold, and is electrically connected to an electric device of the mold.

The first flow path system constitutes a fluid passage and an electric signal line connecting the temperature control unit and the fixed type, and the second flow path system forms a fluid passage connecting the temperature control unit and the movable type. It constitutes an electric signal line. The first hose bear, which is common to the first and second flow path systems, includes a fluid passage hose forming a part of the first and second flow path systems and an electric signal so as to allow the mold to move between the preparation position and the replacement position. The wire cable is guided through the movable bending portion, and one or an independent pair of second hose bears common to both systems is provided for the fluid passage hose so as to allow the movement of the mold between the exchange position and the setting position. And guiding the electrical signal cable through the movable bend.

The first hose bear is, for example, one in which a fluid passage hose and an electric signal line cable are arranged in order on a connecting pin of a wide chain member, and the hose is processed through the movement of one movable bent portion. Yes, the first hose bear is arranged in the mold clamping direction. The second hose bear also has the same structure as described above, but is arranged in the die loading / unloading direction. Since the first hose bear and the second hose bear are provided in this manner, the mold is set in the order of the preparation position, the replacement position, and the setting position while the first and second flow path systems are connected to the mold at the preparation position. , The fluid passage hose and the electric signal line cable can be arranged in an orderly manner, and the fluid passage hose and the electric signal line cable can be prevented from being damaged due to the movement between the preparation position and the replacement position of the mold.

According to a second aspect of the present invention, there is provided a mold exchanging device for an injection molding machine.
In the invention of claim 1, the first flow path system has a fluid passage hose of the second hose bear and a fluid passage and an electric signal line respectively connected to the moving ends of the electric signal line cable, and carries in and out on the transfer carriage. It is equipped with a fixed type relay block that is guided to move in any direction. Although the same operation as the invention of claim 1 is achieved, since the fixed type relay block is provided, the fluid passage hose of the second hose bear and the moving end of the electric signal line cable can be connected to the fixed type relay block in an orderly manner.

A mold exchanging device for an injection molding machine according to a third aspect is
In the invention of claim 2, the fluid passage hose forming a part of the second flow path system and the third hose bear for guiding the electric signal line cable through the movable bending portion so as to allow the movement of the movable mold during injection molding. I have it. Although the same operation as in claim 2 is achieved, since the third hose bear is provided, the fluid passage hose and the electric signal line cable forming a part of the second passage system can be arranged in an orderly manner, and the fluid passage accompanying the movement of the movable die can be arranged. The hose and the electric signal line cable can be prevented from being damaged.

A mold exchanging device for an injection molding machine according to a fourth aspect is
In the invention of claim 3, the second flow path system has a fluid passage hose of the third hose bear and a fluid passage and an electric signal line connected to the moving end side of the electric signal line cable, respectively, and carries out on the transfer carriage. The relay block for the movable die is provided so as to be guided movably in the inserting direction and the die clamping direction. Although the same operation as in claim 3 is achieved, since the movable relay block is provided, the fluid passage hose of the third hose bear and the moving end of the electric signal line cable can be connected to the movable relay block in an orderly manner.

According to a fifth aspect of the present invention, there is provided a mold exchanging device for an injection molding machine,
In the invention of claim 2, the fluid passage and the electric signal line of the fixed type relay block are connected to the fixed type by the fluid passage hose and the electric signal line cable, respectively. Although the same operation as the second aspect is achieved, the fluid passage hose and the electric signal line cable can be connected without modifying the existing fixed type hose or the connecting portion of the cable.

According to a sixth aspect of the present invention, there is provided a mold exchanging device for an injection molding machine,
In the invention of claim 4, the fluid passage and the electric signal line of the movable type relay block are respectively connected to the movable type by the fluid passage hose and the electric signal line cable. Although the same operation as in claim 4 is achieved, the fluid passage hose and the electric signal line cable can be connected without modifying the existing fixed type hose or the connecting portion of the cable.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. The mold exchanging device for a horizontal injection molding machine according to the present embodiment includes a mold in which a fixed mold and a movable mold are paired, with respect to the set position between the fixed plate and the movable plate of the horizontal injection molding machine, and the set position. FIG. 3 is an example in which the present invention is applied to a mold exchanging device that transfers a die over a replacement position that is separated in the carry-in / out direction and a preparation position that is separated from the exchange position in the mold clamping direction. Two sets of mold exchanging devices are arranged in one horizontal injection molding machine.

First, the horizontal injection molding machine 1 will be described. As shown in FIGS. 1 to 3, the horizontal injection molding machine 1 includes:
A fixed plate 3 for fixing the fixed mold 2A, a movable plate 4 for fixing the movable mold 2B, four guide rods 5 for guiding the movable plate 4 to the left and right, and a mold clamping direction for the movable plate 4. It has a hydraulic cylinder 7 for reciprocating (left and right direction), a material supply device 8 for supplying a synthetic resin material into the mold 2. Both ends of the four guide rods 5 are fixed to the fixed plate 3 and the support plate 6, the hydraulic cylinder 7 is fixedly provided on the support plate 6, and the tip end portion of the piston rod 7 a is fixed to the movable plate 4. ing.

A hopper 9 for charging a powdery synthetic resin material into the material supply device 8 and an injection cylinder 10 for heating and melting the powdery synthetic resin material and injecting it into the mold 2.
For driving the cylinder 10 between an injection position where a synthetic resin material can be injected from the tip of the injection cylinder 10 into the mold 2 and a standby position which is left a predetermined distance from the injection position. A cylinder 1 having an actuator (not shown) and the like.
The synthetic resin material heated and melted in 0 is sent to the tip of the cylinder 10 by the rotating screw piston, and the screw piston is pushed to the tip side by the actuator, so that the synthetic resin material is injected into the mold 2. To be done.

As shown in FIG. 3, on the surface of the fixed platen 3,
The fixed portion 2a of the fixed die 2A is supported and the fixed die 2
Four roller members 11 capable of transporting A in the loading / unloading direction (front-back direction), an air cylinder 12 for positioning the fixed die 2A, and a pair of upper and lower for clamping the fixed portion 2a of the fixed die 2A. Four clamp devices 13 are provided, and the tip of the piston rod of the air cylinder 12 is fixed to the fixed mold 2.
The fixed die 2A is centered and positioned by engaging with the recess at the center of the lower end of the fixed portion 2a of A. The movable platen 4 is also provided with the same four roller members, air cylinders, and four clamp devices as those of the fixed platen 3 on the platen surface.

The mold 2 detachably attached to the horizontal injection molding machine 1 will now be described. Inside the fixed mold 2A and the movable mold 2B of the mold 2, the fixed mold 2A and the movable mold 2B are respectively provided. A fluid passage for temperature control for cooling, one or more hydraulic cores each driven by a hydraulic actuator, a hydraulic passage for supplying hydraulic pressure to the hydraulic actuator, a plurality of temperature sensors for measuring the temperature of the mold 2. , A proximity switch for detecting the clamped state of the mold 2, an electric signal line for the temperature sensor and the proximity switch, and the like, and the temperature control unit 23 for the temperature control fluid passage, the hydraulic passage, and the electric signal line. A plurality of fluid passage hoses extending from the electric signal line cable are connected.

The mold exchanging device 20 will be described. As shown in FIGS. 1 and 2, the two mold changing devices 20L and 20R arranged in the injection molding machine 1 have the same structure, and the fixed mold 2A and the movable mold are changed by the respective mold changing devices 20. The mold 2 paired with 2B is a set position between the fixed platen 3 and the movable platen 4 of the horizontal injection molding machine 1 and an exchange position separated in the carry-in / carry-out direction for carrying the mold 2 in and out of the set position. And a preparation position separated from the replacement position (the position on the mold placing portion 33 of the mold replacement device 20R in FIG. 1) in the mold clamping direction.

As shown in FIGS. 1 to 4 and 6, in the mold exchanging device 20, the mold 2 placed on the mold placing section 33 is clamped in the mold clamping direction between the replacement position and the preparation position. A transfer carriage 21 for transferring the mold 2 to the mold, a mold transfer mechanism 22 capable of transferring the mold 2 between an exchange position and a set position, and a temperature control fluid fixedly provided on the floor 14 side. A temperature control unit 23 that supplies pressurized oil and is electrically connected to an electric device of the mold 2.
And a first flow path system 24 forming a temperature control fluid passage connecting the temperature control unit 23 and the fixed mold 2A, a hydraulic pressure passage, and an electric signal line, and a temperature control connecting the temperature control unit 23 and the movable mold 2B. It is provided with a second flow path system 25 forming a fluid passage, a hydraulic passage, and an electric signal line, a first hose bear 26, a pair of left and right second hose bears 27 and 28, a third hose bear 29, and the like.

First, the transfer carriage 21 will be described.
Four wheels 32 rolling on a pair of rails 31 are mounted on the transfer carriage 21, and in FIG.
The 0 L transfer carriage 21 extends over the position shown by the solid line on the left side of the rail 31 and the position where the mold changing apparatus 20R is located in the center, and the transfer carriage 21 of the mold changing apparatus 20R is Is arranged so as to be movable in the left-right direction over the position shown by the chain line at the right end and the position shown by the solid line at the center. As shown in FIGS. 4 and 6, the center portion of the upper surface of the transfer carriage 21 forms a die mounting portion 33 for mounting the die 2, and the upper portion of the die mounting portion 33 has 1 A plate-shaped movable plate 35 is provided which is guided in the loading / unloading direction via a pair of guide plates 36. The die mounting mechanism 33 includes a die transfer mechanism 22.
The two roller conveyors 40 and 45 included in the above are arranged, and the mold 2 is placed on the roller conveyors 40 and 45.

The pair of guide plates 36 are provided on the roller conveyor 4
0, 45 are erected in the front-rear direction on both left and right sides, and a pair of guide members 37 having a plurality of guide rollers are fixed to the left and right ends of the lower surface of the movable plate 35. Engage the upper end of the guide plate 36 of
The movable plate 35 is guided movably in the loading / unloading direction. A block member 38 is fixed to the left part of the upper surface of the movable plate 35, and a pair of long plate-shaped guide plates 39 located on the right side of the block member 38 are laterally facing and opposed to the upper surface of the movable plate 35. Are erected vertically, and on the upper surface of the block member 38,
The fixed-type relay block 71 is fixed, and a movable-type relay block 91 is guided to the upper ends of the pair of guide plates 39 so as to be movable in the mold clamping direction.

That is, the relay blocks 71 and 91 are guided movably in the loading / unloading direction on the transfer carriage 21 via the guide plate 36 and the movable plate 35, and the relay block 91 is clamped via the guide plate 39. It is guided to move in any direction. As shown in FIG. 5, a pin member 93 is projectingly provided on the rear surface side of the relay block 91, and the tip end portion of the pin member 93 is engaged with the engaging hole 94 of the movable die 2B to perform injection molding. At some time, the relay block 91 reciprocates integrally with the movable die 2B. A first relay block 77 is fixed to the left end of the front end of the transfer carriage 21, and a second relay block is fixed between the pair of guide plates 39 on the movable plate 35.

Next, the mold transfer mechanism 22 will be described. As shown in FIG. 6, the mold transfer mechanism 22 supports the fixed portions 2a and 2b of the mold 2 and is capable of transferring in the loading / unloading direction, two roller conveyors 40 and 45, a fixed platen 3 and a movable platen. No. 4 roller member 11 (see FIG. 3) and a driving device 50 for driving the mold 2 and the movable plate 35. still,
The roller members 11 of the fixed platen 3 and the movable platen 4 are common to the mold transfer mechanism 22 of the two mold changing devices 2L and 2R.

Explaining the roller conveyors 40 and 45, the roller conveyor 40 includes two support plates 41 and 42.
And a narrow roller conveyor composed of five idle roller members 43 and a fixed portion 2a of the fixed die 2A on the support plate 41.
Are brought into contact with each other to regulate the left end position of the mold 2. on the other hand,
The roller conveyor 45 is composed of a pair of support plates 46 and five idler roller members 47, and is configured as a wide roller conveyor so that molds of various sizes can be conveyed.

As shown in FIGS. 6-8, the drive unit 50
Is a T-slot forming member 51 disposed between the roller conveyors 40 and 45 in the loading / unloading direction, a chain member 52 with an idler roller disposed in the T-slot 51a, and a T-slot forming member 51. It includes a connecting body 56 that is guided and connected to the tip of the chain member 52, and a drive unit 62 that is provided on the front end side of the T-slot forming member 51 and that pushes and pulls the chain member 52. The chain member 52 includes a plurality of link pieces 53, a pin member 54 for pin-connecting the link pieces 53,
Each of the pin members 54 is composed of roller members 55 rotatably attached to both ends thereof, and these roller members 55 are formed in the T groove 51.
When the chain member 52 is guided in the front-rear direction by being engaged with a and the chain member 52 is pushed by the drive unit 62, the chain member 52 is prevented from bending and the driving force is coupled. Can be transmitted to the body 56.

The connecting body 56 is formed integrally with the leg portion 57 and the leg portion 57 slidably engaged with the T groove 51a.
It is composed of a pair of connecting portions 58 projecting upward from the above, and a push-pull member 59 pin-joined between the pair of connecting portions 58 with a pin 58a. The upper portion of the connecting portion 58 is movable via a connecting member 60. The connecting member 6 attached to the fixed mold 2A is connected to the plate 35, and has a hole 59a formed at the tip of the push / pull member 59.
1 is releasably connected. That is, in the state where the connecting body 56 and the fixed mold 2A are connected, the connecting body 56
Is driven to move, the movable plate 35 and the mold 2 are integrally driven to move in and out. The drive unit 62 is T
On the front end side of the groove forming member 51, a sprocket that is fixedly provided on the transfer carriage 21 and that engages with the chain member 52, a drive motor that rotationally drives the sprocket, and a sprocket are wound inside the drive unit 62. A storage box or the like for storing the chain member 52 is provided.

Next, the first flow channel system 24 and the second flow channel system 25 will be described. However, hereinafter, the hoses refer to the temperature control fluid hose, the hydraulic hose, and the electric signal line cable (including a plurality of electric signal lines), and the relay block passages refer to the temperature control fluid hose and the hydraulic line. The temperature control fluid passage, the hydraulic passage, and the electric signal line corresponding to the hose and the electric signal line cable.

As shown in FIGS. 4 and 9, the first flow path system 24
Is a hose 69 connected to the temperature control unit 23 and extending from the temperature control unit 23 to the first relay block 77, a first relay block 77 having passages connected to the hose 69, and a first relay block 77. Fluid pipes for temperature control, hydraulic pipes, and electric signal line cables that are fixedly arranged on the transfer carriage 21 and connected to these passages, and hoses 70 that are connected to these pipes and cables and extend to the relay block 71.
And a relay block 71 having passages connected to the hoses 70, and hoses 7 for connecting the passages of the relay block 71 and the corresponding ports and terminals of the fixed mold 2A.
2 and.

On the other hand, the second flow path system 25 is connected to the temperature control unit 2
3 from the temperature control unit 23 to the first relay block 7
7, a first relay block 77 that has a hose 87 that extends to 7 and a passage that is connected to the hose 87 and that is common to the first flow path system 24, and the transfer carriage 21 that is connected to the passage of the first relay block 77. Fluid pipes for temperature control, hydraulic pipes, electric signal line cables fixedly provided in the pipes, and hoses 8 connected to these pipes and cables and extending to the second relay block 89.
8, hoses 90 connected to the passages of the second relay block 89 and extending to the relay block 91, and hoses 90
And a hose 92 for connecting the passages of the relay block 91 and their corresponding ports and terminals of the movable mold 2B.

The temperature control fluid pipe, the hydraulic pipe, and the electric signal line cable, which are fixedly arranged on the transfer carriage 21 in the first flow path system 24, are provided from the rear of the first relay block 77 to the left of the transfer carriage 21. 2nd flow path system 25
The temperature adjustment fluid pipe, the hydraulic pipe, and the electric signal line cable are arranged from the rear portion of the first relay block 77 to the right center portion of the transfer carriage 21 in the approximately front-rear direction central portion.

Next, the first to third horse bears 26 to 29 will be described. The first hose bear 26 connects the hoses 69 and 87 of the first and second flow path systems 24 and 25 with the U-turn-shaped movable bending portion 76 so as to allow the mold 2 to move between the preparation position and the replacement position. It is for guiding through. The first hose bear 26 is formed by connecting a plurality of short rectangular tubular members 75 with each other in a chain shape in a pin shape to bend in only one direction. One end of the first hose bear 26 is on the floor surface 14 side and the other end is a relay block. It is fixed to 77 and arranged in the left-right direction on the front side of the transfer carriage 21.

The second hose bear 27 guides the hoses 70 of the first flow path system 24 through the U-turn movable bending portion 81 so as to allow the mold 2 to move between the replacement position and the setting position. It is for the purpose. The second hose bear 28 connects the hoses 88 of the second flow path system 25 to the U-turn movable bending portion 81 so as to allow the mold 2 to move between the replacement position and the setting position.
It is for guiding through. Second horse bear 2
Reference numerals 7 and 28 have the same structure as that of the first hose bear 26, and are formed in a one-sided bent shape in which a plurality of rectangular tube members 80 are pin-coupled and bent only in one direction.

One end of the second hose bear 27 is fixed between the guide plate 36 and the roller conveyor 40 on the left side of the center of the upper surface of the transfer carriage 21, and the other end is fixed to the upper left end of the movable plate 35. ing. One end of the second hose bear 28 is fixed between the guide plate 36 on the right side of the upper surface of the transfer carriage 21 and the roller conveyor 40, and the other end is fixed to the right end of the upper surface of the movable plate 35. Second horse bear 2
7, 28 are arranged in the front-rear direction on the upper side of the transfer carriage 21. As shown in FIG. 4, the front guide plate 3
An opening 39a is formed in the hose 9, and the hoses 88 guided by the second hose bear 28 extend to the second relay block 89 through the opening 39a.

The third hose bear 29 connects the hoses 90 of the second flow path system 25 through the U-turn-shaped movable bending portion 97 so as to allow the movable mold 4 to reciprocate during the injection molding of the injection molding machine 1. To guide you. The third hose bear 29 includes the first hose bear 26, the second hose bears 27, 2
Similar to 8, the plurality of square tube members 96 are pin-coupled to each other to be formed in a single-folded shape that bends only in one direction. One end of the third hose bear 29 is fixed between a pair of guide plates 39 on the upper surface of the movable plate 35, the other end is fixed to a relay block 91, and the third hose bear 29 is arranged between the pair of guide plates 39 in the left-right direction. It is set up.

Next, the operation of the mold exchanging device 20 will be described. When the mold 2 is transferred between the preparation position and the replacement position, the transfer carriage 21 is moved in the left-right direction,
By the first hose bear 26, the hoses 69 and 87 of the first and second flow path systems 24 and 25 extending from the temperature control unit 23 to the first relay block 77 of the transfer carriage 21 can be arranged in an orderly manner, and the hoses can be arranged. The damage of 69 and 87 can be prevented.

When the mold 2 is transferred between the exchange position and the set position, the transfer carriage 21 is moved by the mold transfer mechanism 22.
On the other hand, the mold 2 and the movable plate 35 are integrally moved and driven in the loading / unloading direction, but by the second hose bear 27, the first flow path system 2 extending from the transfer carriage 21 to the relay block 71.
No. 4 hose 70 can be arranged in an orderly manner and damage can be prevented, and the second hose bear 28 allows the second flow path system 2 extending from the transfer carriage 21 to the first relay block 89.
The hoses 88 of 5 can be arranged in an orderly manner and their damage can be prevented.

At the time of injection molding of the injection molding machine 1, the relay block 91 reciprocates integrally with the movable mold 2B in the mold clamping direction, but by the third hose bear 29, it extends from the second relay block 89 to the relay block 91. The hoses 90 of the two-passage system 25 can be arranged in an orderly manner, and the damage can be prevented.

According to the mold exchanging device 20, the transfer carriage 21, the mold transfer mechanism 22, the temperature control unit 23, the first and second flow path systems 24 and 25, the first hose bear 26, the second hose bear 27, Since 28 and the third hose bear 29 are provided, the mold 2 is set in the order of the preparation position, the replacement position, and the setting position while the first and second flow path systems 24 and 25 are connected to the mold 2 in the preparation position. , And vice versa, the first and second flow path system 2
The hoses 4 and 25 can be arranged in an orderly manner, and damage to the hoses accompanying the transfer of the mold 2 can be reliably prevented.

Further, since the first relay block 77 is provided, the hoses 69 and 8 guided by the first hose bear 87 are provided.
The moving end of 7 can be connected to the first relay block 77 in an orderly manner. Since the relay block 71 is provided, the second hose bear 2
The moving end of the hoses 70 guided by the relay block 7
1 can be connected neatly. Since the second relay block 89 is provided, the moving ends of the hoses 88 guided by the second hose bear 28 can be connected to the second relay block 89 in an orderly manner. Since the relay block 91 is provided, the moving ends of the hoses 29 guided by the third hose bear 29 can be connected to the relay block 91 in an orderly manner. Furthermore, relay blocks 71, 77, 8
Since the reference numerals 9 and 91 have passages and the hoses are connected to the passages, the hoses can be connected without modifying the existing hose of the mold 2 or the connecting portion of the cable.

In this embodiment, since two sets of mold exchanging devices 20 are provided for one horizontal injection molding machine 1, while the molding machine 1 is in operation, the mold 2 to be used next is to be used. Is placed on one of the mold exchanging devices 20, hoses are connected to adjust the temperature, and the used die 2 is carried out by the other mold exchanging device 20, and the one die exchanging device. Since the prepared mold 2 can be carried into the set position by 20, the operating rate of the horizontal injection molding machine 1 can be increased.

Next, a modified example in which the mold exchanging device 20 of the above embodiment is partially modified will be described. 1] A pair of left and right second hose bears 27, 28 independent of each other
Instead of, the second hose bear common to the first and second flow path systems 24 and 25 is provided so as to allow the movement of the mold 2 between the exchange position and the set position, and the second hose bear allows the second hose bear to It may be configured to guide the hoses 70 and 88 of the first and second flow path systems. 2] In the first and second flow path systems 24 and 25, the transfer carriage 2
1 is provided with no hoses extending from the temperature control unit 23 to the relay block 71 and hoses extending from the temperature control unit 23 to the relay block 89, and a part of them is fixedly arranged on the transfer carriage 21. You may.

3) In the first and second flow path systems 24 and 25, the first relay block 77 is omitted, and the hoses 69 and 87 guided by the first hose bear 26 are bent through 90 degrees. It may be connected directly to pipes and cables. In this case, a supporting member for supporting the end portion of the first hose bear 26 on the transfer carriage side is fixedly provided on the transfer carriage 21 side. 4] In the second flow path system 25, the second relay block 89 may be omitted and hoses extending from the transfer carriage 21 to the relay block 91 may be provided.

5] The first to third horse bears 26 to 29 are
Only a kind of structure is shown, and hose bears of various structures capable of guiding hoses (for example, those capable of guiding hoses on a connecting pin of a wide chain member) may be applied. . 6] If the movable mold relay block 91 is configured to be guided in the vertical direction, it can be applied to a mold exchanging device of a vertical injection molding machine in which the mold clamping direction is the vertical direction.

7] In the die transfer mechanism 22, the connecting member 5
The method of pushing and pulling 6 to move the die 2 in the loading / unloading direction is merely an example, and various mechanisms such as moving the die 2 in the loading / unloading direction by a driving roller method may be used. Can be applied. 8] The relay block 91 is a movable die 2 via a pin member 93.
Although it is connected to B, the movable die 2B and the relay block 91 may be connected by other connecting means.

[0048]

According to the mold exchanging device of the injection molding machine of the first aspect, the transfer carriage, the mold transferring means, the temperature control unit, the first and second flow path systems, the first hose bear and the second hose bear. Since it is provided, as described above, the first, second and
With the flow path system connected, the mold can be transferred in the order of the preparation position, the replacement position, the setting position and vice versa, and the fluid passage hose and the electric signal line cable can be arranged in an orderly manner. It is possible to prevent the fluid passage hose and the electric signal line cable from being damaged due to the movement between the exchange positions.

According to the mold exchanging device of the injection molding machine of claim 2, the same effect as that of claim 1 is obtained, but since the fixed type relay block is provided, as described above, the fluid of the second hose bear is used. The passage hose and the moving end of the electric signal line cable can be orderly connected to the fixed type relay block.

According to the mold exchanging device of the injection molding machine of the third aspect, the same effect as that of the second aspect can be obtained, but since the third hose bear is provided as described above, a part of the second flow path system is provided. It is possible to arrange the fluid passage hose and the electric signal line cable in an orderly manner and prevent the fluid passage hose and the electric signal line cable from being damaged due to the movement of the movable mold.

According to the mold exchanging device of the injection molding machine of the fourth aspect, the same effect as that of the third aspect is obtained, but as described above, since the movable-type relay block is provided, the fluid passage of the third hose bear is provided. The moving end of the hose and the electric signal line cable can be connected to the relay block for the movable mold in an orderly manner.

According to the mold exchanging device of the injection molding machine of the fifth aspect, the same effect as that of the second aspect is obtained, but as described above, the fluid passage and the electric signal line of the fixed type relay block are:
Since the fluid passage hose and the electric signal line cable are respectively connected to the fixed type, the fluid passage hose and the electric signal line cable can be connected without modifying the existing fixed type hose or the connection portion of the cable.

According to the mold exchanging device of the injection molding machine of claim 6, the same effect as that of claim 4 is obtained, but as described above, the fluid passage and the electric signal line of the movable relay block are
Since the fluid passage hose and the electric signal line cable are connected to the movable type respectively, it is possible to connect the fluid passage hose and the electric signal line cable without modifying the existing fixed type hose or the connecting portion of the cable.

[Brief description of drawings]

FIG. 1 is a plan view of a mold exchanging device and a horizontal injection molding machine according to an embodiment of the present invention.

FIG. 2 is a front view of a mold exchanging device.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a schematic perspective view of a mold exchanging device.

FIG. 5 is an enlarged side view of the mold exchanging device.

FIG. 6 is a perspective view of a main part of a mold transfer mechanism.

7 is a sectional view taken along line VII-VII of FIG.

8 is a sectional view taken along line VIII-VIII in FIG.

FIG. 9 is a configuration diagram of a first flow channel system and a second flow channel system.

[Explanation of symbols]

1 Horizontal Injection Molding Machine 2 Mold 2A Fixed Mold 2B Movable Mold 3 Fixed Plate 4 Movable Plate 14 Floor 20 Mold Change Device 21 Transfer Cart 22 Mold Transfer Mechanism 23 Temperature Control Unit 24 First Flow Path System 25 Second Flow Road system 26 1st hose bear 27, 28 2nd hose bear 29 3rd hose bear 33 Mold placement part 69, 70, 72, 87, 88, 90, 92 Hose 71 Fixed block relay block 76, 81, 97 Flexible bending Part 91 Movable relay block

Claims (6)

[Claims] 1. A pair of a fixed mold and a movable mold is set in a set position between a fixed plate and a movable plate of a horizontal injection molding machine, and in a carry-in / carry-out direction for carrying the mold in and out of the set position. A mold exchanging apparatus for transferring a distant exchange position and a preparation position distant from the exchange position in a mold clamping direction, the mold exchanging unit having a mold placing unit, and the mold placed on the mold placing unit. A transfer carriage for transferring the molds between the replacement position and the preparation position, and a mold transfer means attached to the transfer carriage and the fixed mold and the movable mold, and capable of transferring the molds between the replacement position and the set position. A temperature control unit that is fixedly provided on the floor side, supplies at least one of a temperature control fluid and pressurized oil to the mold, and is electrically connected to an electric device of the mold; And a first flow path system that configures a fluid passage connecting the fixed type and an electric signal line, and a temperature control unit. Second constituting the fluid passage and electrical signal lines connecting the movable die and
The fluid passage hose and the electric signal line cable forming a part of the first and second passage systems are guided through the movable bent portion so as to allow the movement of the die between the passage system and the preparation position and the exchange position. The first hose bear that is common to both systems, and the fluid passage hose and the electric signal cable that form part of the first and second flow path systems are movable and bendable to allow movement of the mold between the exchange position and the set position. And a pair of independent second hose bears that are common to both systems and that are guided through the parts, and a die changing device for a horizontal injection molding machine. 2. The first flow passage system has a fluid passage hose of the second hose bear and a fluid passage and an electric signal line connected to the moving ends of the electric signal line cables, respectively, and has a flow path on the transfer carriage in the loading / unloading direction. The mold exchanging device for a horizontal injection molding machine according to claim 1, further comprising a fixed-type relay block that is movably guided. 3. A fluid passage hose forming a part of a second flow path system and a third hose bear for guiding an electric signal line cable through a movable bent portion so as to allow movement of the movable mold during injection molding. The mold exchanging device for a horizontal injection molding machine according to claim 2, wherein 4. The second flow path system has a fluid passage hose of the third hose bear and a fluid passage and an electric signal line connected to the moving end side of the electric signal line cable, respectively, and has a loading / unloading direction on the transfer carriage. The mold changing device of the horizontal injection molding machine according to claim 3, further comprising a relay block for a movable mold, which is guided so as to be movable in the mold clamping direction. 5. The horizontal injection molding machine according to claim 2, wherein the fluid passage and the electric signal line of the fixed type relay block are connected to the fixed type by a fluid passage hose and an electric signal line cable, respectively. Mold changer. 6. The horizontal injection molding machine according to claim 4, wherein the fluid passage and the electric signal line of the movable block for the movable die are connected to the movable die by a fluid passage hose and an electric signal line cable, respectively. Mold changer.