JP3012097B2 - Injection 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 an injection molding machine for injection molding a resin, and more particularly to an injection molding machine having a mechanism for carrying a molding die in and out along a horizontal direction.

[0002]

2. Description of the Related Art In order to replace a molding die with an injection molding machine, a mounted molding die is first removed from a fixed platen and a movable platen, and then a new molding die is mounted. At this time, equipment such as a mold carrier and a crane were used. Also,
The injection molding operation has been started after the temperature of the newly mounted molding die is adjusted to a temperature corresponding to the molded product.

[0003]

However, in the conventional molding die exchange operation, since it takes time to insert and remove the molding die between the fixed plate and the movable platen, for example, the molding die needs to be replaced. The time required for the mold change work was long. Further, it takes a long time to control the temperature of the newly mounted molding die to the set die temperature. The time required for changing the molds and the time required for controlling the temperature of the molds associated therewith become idle time of the injection molding machine, which has been a problem in improving the operation efficiency of the injection molding machine.

[0004] The present invention has been made to solve the above problems, and has as its object to provide an injection molding machine capable of shortening an idle time associated with mold replacement and improving operating efficiency.

[0005]

Technical Solution In order to solve the above problems, an injection molding machine according to the present invention comprises a fixed plate having a fixed relative position, and a fixed plate arranged opposite to the fixed plate. A movable plate that reciprocates along the approaching and separating directions, and is provided with a molding die composed of a fixed die attached to the fixed plate and a movable die attached to the movable plate; In the injection molding machine for injection molding, the molding die disposed between the fixed die and the movable die can be placed, and the moving direction of the movable die of the placed molding die. A mold mounting mechanism that allows movement along a first horizontal direction that is substantially perpendicular to the second plate, and a second horizontal plate that is disposed beside the fixed platen and the movable platen and that is substantially parallel to the moving direction of the movable platen. Reciprocating along the direction and the second with the mold mounting mechanism. A moving stage capable of changing a relative position along a horizontal direction, a stage driving mechanism for reciprocatingly driving the moving stage along a second horizontal direction, and the molding die capable of being mounted and being mounted. The first of the molding dies
While allowing movement along the horizontal direction, and when juxtaposed along the second horizontal direction on the moving stage and facing the mold mounting mechanism in accordance with the movement of the moving stage, A plurality of setup tables that form a series of mold movement paths on which the molding die can move along the first horizontal direction with a mold mounting mechanism; and a plurality of setup tables respectively installed on the plurality of setup tables. A plurality of mold moving mechanisms for moving the molding dies on the mold moving path along the first horizontal direction; and supplying a heat transfer fluid to the molding dies to form the molding dies. A plurality of mold temperature control mechanisms capable of controlling the temperature are provided.

[0006]

When the molding die is to be mounted on a fixed platen or a movable plate on which no molding die is mounted, first, the first molding die is placed on the first setup table. The heat medium fluid from the mold temperature control mechanism is supplied to the first molding die on the first setup table to regulate the temperature of the first molding die to a desired temperature. After the completion of the temperature control, the stage driving mechanism is operated to move the moving stage along a second horizontal direction substantially parallel to the moving direction of the movable platen, and the second horizontal movement between the moving stage and the mold mounting mechanism is performed. Adjust the relative position along the direction. By adjusting the relative position of the moving stage and the mold mounting mechanism along the second horizontal direction, the first setup table on which the first molding die is mounted, the mold mounting mechanism, Are adjusted, and the first setup table and the mold mounting mechanism form a series of mold moving paths. Subsequently, the mold moving mechanism sets the first molding die along the first horizontal direction from the first setup table to the mold mounting mechanism on the mold mounting mechanism. To the position you set. In the first molding die on the die mounting mechanism, for example, a fixed die is mounted on a fixed plate and a movable die is mounted on a movable plate by a clamp mechanism. Since the first molding die is moved from the first setup stage to the die mounting mechanism by the die moving mechanism and mounted on the fixed platen and the movable platen, the time required for mounting the molding die is extremely long. short. In addition, since the temperature of the first molding die has already been adjusted to the set temperature, there is no need for a time for adjusting the temperature after mounting on the injection molding machine. Therefore, the injection molding operation can be started immediately. The heat medium fluid from the mold temperature control mechanism is continuously supplied to control the temperature of the first molding mold during injection molding to a desired temperature. Further, the moving stage is held at the same position.

[0007] When the injection molding using the first molding die mounted above is completed, the die is replaced for injection molding using a new second molding die. The newly used second mold is placed on a second setup table different from the first setup table on which the first mold is placed, and the first mold is placed on the first setup mold. The temperature is adjusted to the set temperature similarly to the molding die. This temperature control is performed in parallel with the injection molding operation using the first molding die. Normally, the temperature control time of the second molding die is sufficiently shorter than the operation time of the injection molding by the first molding die, so that the second molding die is completed at the end of the injection molding operation by the first molding die. The temperature control of the mold can be completed.

When the injection molding by the first molding die is completed, first, the mounting of the first molding die is released. The first molding die whose mounting has been released is placed on the die placing mechanism. At this time, the mold mounting mechanism and the first setup table continue to form the above-described mold moving path. The mold moving mechanism moves the first molding die from the mold mounting mechanism to the first setup table in a reverse direction to the time of mounting, to a set position on the first setup table. . Next, the stage drive mechanism is operated to move the moving stage along the second horizontal direction, and a new series of mold moving paths is newly formed by the second setup table and the mold mounting mechanism. Subsequently, the second molding die is moved along the die moving path in the same manner as described above, and mounted on the fixed platen and the movable platen from the die placing mechanism. The first mold is
The connection with the temperature control mechanism is released, and the connection is removed from the first setup table. This allows the first setup table to mount the next, for example, the third molding die.

When the injection molding by the second molding die is completed, the second molding die is removed and the third molding die is mounted as described above. In this way, the exchange of the molding die and the injection molding are performed one after another. The time required for changing the molding die is short, and there is no idle time in the injection molding machine for controlling the temperature of the molding die.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. First, the main body 3 of the injection molding machine 1 of the present embodiment
Will be described. At the time of injection molding, a well-known molding die 9 including a fixed die 5 and a movable die 7 is mounted on the main body 3. As shown in FIG. 1, a heating cylinder 14 that melts and supplies resin supplied from the hopper 12 is disposed at an end in the direction of the arrow X in the figure. This heating cylinder 14
An injection cylinder for applying an injection pressure to the molten resin in the heating cylinder 14 is provided at an end in the arrow X direction. Furthermore, at the end of the heating cylinder 14 opposite to the injection cylinder,
An injection nozzle 18 serving as an injection path for the molten resin is provided.

The fixed platen 20 is moved in the direction of the arrow Y of the heating cylinder 14.
Is arranged. Also, in the direction of the arrow Y of the fixed platen 20,
A movable platen 22 is arranged opposite to the fixed platen 20.
The fixed platen 20 and the movable platen 22 have a mold clamp 2
The fixed die 5 can be mounted on the fixed platen 20 and the movable die 7 can be mounted on the movable platen 22 via a die clamp 24. Further, the movable platen 22 has a cylindrical clamping ram 2
6 are connected. The other end of the mold clamping ram 26 is connected to a piston (not shown) inserted into the mold clamping cylinder 28. In addition, a fixed platen 20
A plurality of stays 30 whose both ends are fixedly inserted are inserted into the movable platen 22 and the mold clamping cylinder 28, and the movable platen 22 can move forward and backward exactly along the stays 30 to change the relative position with respect to the fixed platen 20. .

The above-mentioned hopper 12 to stay 30 are installed on a base 32 to constitute a main body 3. Since the main body 3 itself is already well-known, a detailed description is omitted. As shown in FIGS. 2 and 3, a lower portion of the mold mounting surface 34 of the fixed platen 20 includes a cylindrical portion 36 and a pair of flange portions 38 provided at both ends of the cylindrical portion 36. Four flanged rollers 40a to 40d move the shaft to the mold mounting surface 3
4 is mounted substantially perpendicularly. The axes of these flanged rollers 40a to 40d are substantially parallel to each other, and their horizontal levels are also substantially the same. Therefore, the flanged roller 40a
The horizontal level of the uppermost part of the cylindrical portion 36 of 〜40d substantially coincides. Further, the bar 42 protruding from the fixed platen 20 is provided with a cylindrical portion 44 having the same diameter as the cylindrical portion 36 of the flanged rollers 40a to 40d and a pair of flange portions 46 provided at both ends of the cylindrical portion 44. Rollers 48a and 48b are provided. The cylindrical portions 44 of these flanged rollers 48a and 48b have axes substantially parallel to the cylindrical portions 36 of the flanged rollers 40a to 40d.
The horizontal level of the axis and the horizontal level of the uppermost part also substantially match. Therefore, a series of horizontal roller conveyors C is formed by the flanged rollers 40a to 40d and the flanged rollers 48a and 48b.
1, and when the article is placed on the flanged rollers 40a to 40d and the flanged rollers 48a and 48b, the article is rotated by the rotation of the flanged rollers 40a to 40d and the flanged rollers 48a and 48b. It can move substantially horizontally on the cylinder 36 and the cylinder 44 along the direction.

As shown in FIG. 2 and FIG.
The above-mentioned flanged rollers 40a to 4a are provided on the bar 52 which is provided so as to protrude from the mold mounting surface 50 and the movable plate 22.
0d and flanged rollers 48a, 48b are paired with cylindrical rollers 54a-54f, respectively.
0d and the flanged rollers 48a, 48b. The uppermost horizontal level of the cylindrical rollers 54a to 54f is the same as the cylindrical portion 36 of the flanged rollers 40a to 40d.
And the horizontal level of the uppermost part of the cylindrical portion 44 of the flanged rollers 48a and 48b,
Similarly to d and the flanged rollers 48a and 48b, these cylindrical rollers 54a to 54f constitute a series of horizontal roller conveyors C2, on which articles can move substantially horizontally.

The flanged rollers 40a to 40d, the flanged rollers 48a and 48b, and the cylindrical rollers 54a to 54f constitute a mold mounting mechanism according to the present invention, and the molding die 9 is connected to the flanged rollers 40a to 40d. And flanged rollers 48a, 4
When the molding die 9 is placed over the roller 8b and the cylindrical rollers 54a to 54f, the molding die 9 can be moved in the horizontal direction along the rotation direction of the flanged rollers 40a to 40f and the cylindrical rollers 54a to 54f.

As shown in FIG. 1, a moving stage 58 provided with a pair of setup tables 56a and 56b is provided on the side of the main body 3.
Are juxtaposed. The moving stage 58 is mounted on a pair of rails 60a, 60b parallel to the axial direction of the main body 3 so as to be able to reciprocate along the rails 60a, 60b. Further, a telescopic hydraulic cylinder 64 as a stage driving mechanism of the present invention, which is provided with a rod 62 that moves in response to a hydraulic supply / discharge operation, is provided at one end of the moving stage 58. Is connected to the moving stage 58. Thus, the moving stage 58 can be reciprocated on the rails 60a and 60b along the arrow X direction and the arrow Y direction in accordance with the supply and discharge of the hydraulic pressure to and from the telescopic hydraulic cylinder 64.

As shown in FIG. 1 and FIG.
In 6a, four cylindrical rollers 68a to 68d and four flanged rollers 70a to 70d are installed with the axial direction common to the moving direction of the moving stage 58. The cylindrical rollers 68a to 68d transfer the articles to the cylindrical rollers 68a to 68d.
Constitutes a series of horizontal roller conveyors C3 that are mounted so as to be movable along the rotation direction. Similarly, the flanged roller 7
0a to 70d also constitute a series of horizontal roller conveyors C4 on which articles are movably mounted along the rotation direction of the flanged rollers 70a to 70d. Further, the cylindrical rollers 68a-
It is also possible to move the article placed over the 68d and the flanged rollers 70a to 70d in the above direction.

As shown in FIG. 6, the flanged rollers 70a to 70d are driven by a telescopic hydraulic cylinder 64 to move a moving stage 58 so that the flanged rollers 70a to 70d are driven.
70d and a flanged roller 40 installed on the fixed platen 20
a to 40d and by adjusting the relative positions of the flanged rollers 48a and 48b, the horizontal roller conveyors C1 to
The horizontal roller conveyor C4 can be a series. In this state, when the position of the movable platen 22 is adjusted and the relative positions of the cylindrical rollers 54a to 54f and the cylindrical rollers 68a to 68d are adjusted, the horizontal roller conveyors C2 to C3 can be connected in series. It is.
The die moving path R is formed by the series of the horizontal roller conveyors C1 to C4 and the horizontal roller conveyors C2 to C3. In this case, the cylindrical rollers 54a to 54f and the cylindrical rollers 68a to
The relative position with respect to 68d can be changed within the range of the axial length of the cylindrical rollers 68a to 68d. Therefore, the width of the mold moving path R can be adjusted according to the axial length of the mold 9. FIG. 6 shows the relative positional relationship between the fixed platen 20, the movable platen 22, the horizontal roller conveyors C1 to C4, and the mold moving mechanism 72, and details of the mold moving mechanism 72 and other configurations are omitted. are doing.

A mold moving mechanism 72 is provided between the cylindrical rollers 68a to 68d and the flanged rollers 70a to 70d. As shown in FIG.
Reference numeral 2 denotes a telescopic hydraulic cylinder 76 having a rod 74 which moves forward and backward in response to a hydraulic supply / discharge operation, a support bar 78 connected to the tip of the rod 74, and a support bar 78.
Sprockets 80a, 80b provided at each end of the
And a guide rail 86 for supporting the chain 82. These components are installed on a base plate 87.

As shown in FIG. 8, both ends of the chain 82 are fixed to a guide rail 86 via bolts 88a to 88c. The engagement unit 84 is connected to the chain 82 via a plurality of bolts 90. For this reason, the sprockets 80a and 80b
Through the rod 74 of the telescopic hydraulic cylinder 76
, The relative position of the chain 82 changes along the guide rail 86 in accordance with the change in the position of the sprockets 80a and 80b, and the engagement unit 84 that interlocks with the chain 82 reciprocates. ing.

As shown in FIG. 9, the engagement unit 84 includes
A bracket 92 connected to the chain 82, a coil spring 96 housed in a housing hole 94 formed in the bracket 92, and a direction in which the coil spring 96 projects the top 98 from the housing hole 94 (arrow P direction). The engaging member 100 is urged along with the upper surface 92a of the bracket 92 and the plate 102 restricts the protrusion of the engaging member 100. The engagement member 100
When the top 98 is pressed in the direction of arrow Q by a force exceeding the urging force of the coil spring 96, the top 98 is housed in the housing hole 94.

Further, as shown in FIGS. 1 and 5, a heating medium terminal 104 is provided on the side of the cylindrical rollers 68a to 68d opposite to the mold moving mechanism 72. This heating medium terminal 1
A heat medium can be supplied to the temperature control unit 106 from the temperature control unit 106, and the heat medium can be returned to the temperature control unit 106.
Therefore, if the heat medium terminal 104 and the molding die 9 are connected by, for example, a flexible hose, the temperature control unit 106
Is supplied to the molding die 9 and refluxed, so that the molding die 9
Can be adjusted to a temperature corresponding to the temperature of the heat medium.

Although the setup table 56a has been described above, the configuration of the setup table 56b is also the same, so that each component is given the same part number as that of the setup table 56a and description thereof is omitted. However, the temperature control unit 106 is provided with a pair of temperature controllers (not shown).
The temperature of the heat medium to the heat medium terminal 104 on the 6a side and the heat medium terminal 104 on the setup table 56b side can be individually controlled. Therefore, for example, the heating medium terminal 1 on the setup table 56a side
The temperature of the molding die 9 connected to the mold 04 and the temperature of the molding die 9 connected to the heating medium terminal 104 on the setup stage 56b side can be controlled to different temperatures. Of course, the same temperature can be used.

The molding die 9 mounted on the injection molding machine 1 of this embodiment is composed of a fixed die 5 and a movable die 7 as shown in FIG. The fixed mold 5 further includes a rectangular plate-shaped mold base 5a and an engagement piece 5b fixed to the mold base 5a, and the engagement piece 5b is provided with a rectangular engagement opening 5c. The length L1 of the engagement opening 5c is determined by the engagement unit 8 of the mold moving mechanism 72.
4 is longer than the length L <b> 2 of the engagement member 100. The thickness T of the mold base 5 a
It is slightly thinner than the axial length of the cylindrical portion 36 of 0a to 40d, the cylindrical portion 44 of the flanged rollers 48a and 48b, and the cylindrical portion 71 of the flanged rollers 70a to 70d. For this reason, the mold base 5a is connected to the cylindrical portions 3 of these flanged rollers 40a to 70d.
6, 44, 71. The movable mold 7 is also provided with a mold base 7a similar to the above. The molding die 9 is provided with a heat medium supply / discharge port, a cooling water supply / discharge port, and the like. However, other configurations including these are well known, and illustration and description thereof are omitted.

Next, a case where the molding die 9 is mounted on the injection molding machine 1 having the above configuration will be described. First, as shown in FIG. 11, the molding die 9 is placed on, for example, a setup table 56a. At this time, as shown in FIG. 12, the engaging member 100 provided in the engaging unit 84 is engaged with the engaging opening 5c of the molding die 9. In this case, if the relative position between the molding die 9 and the engagement unit 84 is not appropriate, for example, the engagement opening 5c and the engagement member 100 may not normally engage as shown in FIG. However, the engagement member 100
Receives the weight of the molding die 9 via the engagement piece 5b,
It is stored in the storage hole 94 against the urging force of the coil spring 96. For this reason, the load of the molding die 9 is
0a-70d and supported by cylindrical rollers 68a-68d. Accordingly, since the load of the molding die 9 is not applied to the engagement unit 84, the die moving mechanism 72, particularly the chain 82, is not damaged.

The molding die 9 on the setup table 56a is connected to the heat medium terminal 104 to adjust the temperature to a desired die temperature. At this time, cooling water may be supplied to and discharged from the molding die 9 as needed. After the mold temperature reaches the desired temperature, the mold moving mechanism 72
Operating the telescopic hydraulic cylinder 76 of the rod 7
4 is projected, the sprockets 80a,
80b moves. For this reason, the relative position of the chain 82 changes along the guide rail 86, and the engagement unit 84 interlocking with the chain 82 moves along the moving direction of the rod 74. Thus, the molding die 9 engaged with the engagement unit 84 via the engagement piece 5b and the engagement member 100 is moved on the mold moving path R along the arrow F direction. At this time, as shown in FIG.
Even if the engaging member 100 does not normally engage with the engaging member 100, when the engaging member 100 reaches the inside of the engaging opening 5c by the movement of the engaging unit 84, the engaging member 100 And is engaged with the engagement piece 5b (see FIG. 12B).

When the molding die 9 reaches a set position (shown by a broken line in FIG. 11) between the fixed platen 20 and the movable platen 22, the die moving mechanism 72 stops. Next, the fixed die 5 is mounted on the fixed platen 20 via the die clamp 24, and the movable die 7 and the molding die 9 are mounted on the movable platen 22. Thus, the mounting of the molding die 9 to the injection molding machine 1 is completed.

Since the fixed mold 5 and the movable mold 7 are supplied with and discharged from the heating medium from the setup stage 56a and are adjusted to a temperature suitable for injection molding, the injection molding operation can be started immediately. . Therefore, the idle time of the injection molding machine 1 becomes extremely short. Further, the connection with the temperature control unit 106 via the heat medium terminal 104 is continued through the injection molding operation, and the molding die 9 is maintained at an appropriate temperature. Therefore, the temperature control unit 106 has both functions of preheating and maintaining the temperature. For this reason, an effect of enabling downsizing of the injection molding machine 1 is also achieved.

When the injection molding operation of the set amount is completed, the injection molding is usually performed using another molding die 9b (a suffix b is used to distinguish from the above-mentioned molding die 9). Switch to work. The molding die 9b is separately placed on the setup table 56b, and the temperature is controlled by supplying and discharging the heat medium through the heat medium terminal 104 as described above. This temperature control operation is started by predicting the end time of the injection molding operation using the molding die 9, and the temperature control of the molding die 9 b is completed by the end of the operation in the molding die 9. I have. Therefore, the time required for controlling the temperature of the molding die 9b is not the idle time of the injection molding machine 1.

When replacing the mold, first, the mold clamp 2
4 is opened, and the molding die 9 is moved to the fixed platen 20 and the movable platen 2.
Remove from 2 The removed molding die 9 is supported by flanged rollers 40a to 40d and cylindrical rollers 54a to 54d. At this time, the engagement opening 5c of the engagement piece 5b and the engagement member 100 of the engagement unit 84 remain engaged, and the telescopic hydraulic cylinder 76 of the mold moving mechanism 72 is moved to the rod 74. Is operated in the direction in which the sprockets are stored, the sprockets 80a and 80b move accordingly. In response to this, the relative position of the chain 82 changes along the guide rail 86, and the engagement unit 84 interlocked with the chain 82 moves along the moving direction of the rod 74. As a result, the molding die 9 engaged with the engaging unit 84 via the engaging piece 5b and the engaging member 100 is moved on the die moving path R along the arrow B direction, and To the set position. That is, the molding die 9
Is moved from the position shown by the broken line to the position shown by the solid line in FIG. Further, the telescope type hydraulic cylinder 64 is operated to move the moving stage 58 along the arrow X direction in FIG.
b is the position of the setup table 56a and the molding die 9 in FIG. After that, as in the case where the above-described molding die 9 is mounted on the fixed platen 20 and the movable platen 22, the die moving mechanism 7
In 2, the molding die 9 b is moved in the direction of arrow F in FIG. 11 along the die moving path R, and mounted on the fixed platen 20 and the movable platen 22. Since the temperature of the molding die 9b has already been adjusted to an appropriate temperature, the injection molding operation can be started immediately after mounting. For this reason, the temperature adjustment work after the mounting of the molding die 9b becomes unnecessary, and the idle time of the injection molding machine 1 becomes extremely short.

The molding die 9 on the setup table 56a is released from the connection with the heat medium terminal 104 and the like, and is moved from the setup table 56a to, for example, a mold place and stored therein. This operation is performed in parallel with the injection molding operation by the molding die 9b, and does not affect the operation of the injection molding machine 1 at all.

The molding dies 9, 9b placed on the setup tables 56a, 56b are moved by the mold moving mechanism 72 to the mold moving path R.
Moving the fixed platen 20 and the movable platen 22
Can be inserted between The molds 9 and 9b are taken out by the mold moving mechanism 72 by moving the molds 9 and 9b from between the fixed platen 20 and the movable platen 22 to the setup tables 56a and 56b.
Just move in the direction. For this reason, the molding die 9,
The time required for insertion and removal of 9b is very short.
At the time of mold replacement, the molding stage 9 is removed, and then the moving stage 58 is moved horizontally to set up the setup table 56b and the fixed platen 20.
And the relative position with respect to the movable platen 22 is adjusted, and the molding die 9b is adjusted.
Is inserted between the fixed board 20 and the movable board 22. Therefore, the time required for mold replacement is reduced. In addition, since the temperature of the molding die 9b is controlled in parallel with the injection molding operation of the molding die 9, the time required for controlling the temperature of the molding die 9b does not become the idle time of the injection molding machine 1.

It should be noted that the present invention is not limited to this embodiment at all, and can be implemented in various ways without departing from the gist of the present invention. For example, in the above-described embodiment, the engaging member 84 that is housed in the bracket 92 and protrudes
As illustrated in FIG. 14, the hinge 120 is urged by the torsion coil spring 110 to open and close in the direction of the arrow S, and a stopper 130 that regulates the opening of the hinge 120 is provided. It is also possible to adopt a configuration in which Also in this case, when the relative position between the engagement piece 5b and the hinge 120 is shifted, the same effect as in the embodiment is exerted.

[0033]

As is apparent from the above description, according to the injection molding machine of the present invention, the time required for inserting and removing the molding die between the fixed plate and the movable plate in the molding die changing operation is extremely short. short. Further, the temperature adjustment time for adjusting the temperature of the newly mounted molding die to the set die temperature does not become the idle time of the injection molding machine. For this reason, the idle time associated with the mold change is reduced, and the operation efficiency of the injection molding machine is improved.

[Brief description of the drawings]

FIG. 1 is a plan view of an injection molding machine according to an embodiment.

FIG. 2 is a plan view of a fixed platen and a movable platen portion of the injection molding machine according to the embodiment.

FIG. 3 is a side view of the fixed platen of the injection molding machine of the embodiment on the side of the mold mounting surface.

FIG. 4 is a side view of the movable platen of the injection molding machine of the embodiment on the side of the mold mounting surface.

FIG. 5 is a plan view of a moving stage portion of the injection molding machine according to the embodiment.

FIG. 6 is an explanatory diagram of a relative position between a fixed board and a movable board of the injection molding machine of the embodiment and a setup table.

FIG. 7 is a plan view of a mold moving mechanism of the injection molding machine according to the embodiment.

FIG. 8 is a side view of a chain portion of a mold moving mechanism of the injection molding machine according to the embodiment.

FIG. 9 is a partial cross-sectional view of an engagement unit of the injection molding machine according to the embodiment.

FIGS. 10A and 10B are explanatory diagrams of a molding die used in Examples, (a) is a plan view of the molding die, and (b) is a front view of the molding die.

FIG. 11 is an explanatory diagram of the relative positions of the fixed platen, the movable platen, and the setup table in a state where the molding die is placed on the setup table of the injection molding machine according to the embodiment.

12A and 12B are explanatory views of a relative position between an engagement unit of an injection molding machine and an engagement piece of a molding die according to the embodiment, wherein FIG. 12A is a partially enlarged plan view, and FIG. FIG.

FIG. 13 is an explanatory diagram showing a state in which the relative positions of the engagement unit of the injection molding machine and the engagement piece of the molding die are shifted.

FIG. 14 is an explanatory view of a modification of the engagement unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Injection molding machine, 3 ... Main body, 5 ... Fixed mold, 5b ... Engagement piece, 5c ... Engagement opening, 7 ...
Movable mold, 9 molding die, 20 fixed plate, 22
... Movable plate, 40a-40d ... Flanged roller, 48
a, 48b: flanged roller, 54a to 54f: cylindrical roller, 56a, 56b: setup table, 58:
Moving stage, 64 Telescope type hydraulic cylinder, 68a-68d Cylindrical roller, 70a-70d
... Flanged roller, 72 ... Die moving mechanism, 76 ...
・ Telescope type hydraulic cylinder, 82 ・ ・ ・ chain,
84 engagement unit, 92 bracket, 94
... Storing hole, 96 ... Coil spring, 98 ...
-Top part, 100 ... engagement member, 104 ... heat medium terminal, 106 ... temperature control unit, 120 ... hinge, 1
30: stopper, C1 to C4: horizontal roller conveyor, R: mold moving path.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-116823 (JP, A) JP-A-63-116824 (JP, A) JP-A-59-83607 (JP, A) JP-A 61-116 195815 (JP, A) JP-A-2-128805 (JP, A) JP-A-4-115910 (JP, A) JP-A-56-157334 (JP, A) Japanese Utility Model Laid-Open No. 59-110618 (JP, U) Japanese Utility Model Showa 60-137516 (JP, U) Japanese Utility Model Showa 62-25517 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29C 45/00-45/84 B29C 33/00 -33/76

Claims (2)

(57) [Claims] 1. A fixed plate having a fixed relative position, and a movable plate disposed opposite to the fixed plate and reciprocating along a direction approaching or separating from the fixed plate, and attached to the fixed plate. An injection molding machine that mounts a molding die composed of a fixed die and a movable die attached to the movable platen and injects and molds a molten resin, wherein the injection molding machine is disposed between the fixed die and the movable die. A mold mounting mechanism capable of mounting the molding die and allowing the mounted molding die to move along a first horizontal direction substantially orthogonal to the moving direction of the movable mold; , Disposed on the side of the fixed platen and the movable platen, reciprocated along a second horizontal direction substantially parallel to the moving direction of the movable platen, and moved in the second horizontal direction with the mold mounting mechanism. A movable stage capable of changing a relative position along the moving stage; 2, a stage drive mechanism that reciprocates along the horizontal direction, and is capable of mounting the molding die and allowing the mounted molding die to move along the first horizontal direction, When the molding die is arranged side by side along the second horizontal direction on the moving stage and faces the mold mounting mechanism in accordance with the movement of the moving stage, the molding die is combined with the mold mounting mechanism. A plurality of setup stages forming a series of mold movement paths movable along the first horizontal direction thereon; and the molding dies on the mold movement paths respectively installed on the plurality of setup tables. A plurality of mold moving mechanisms for moving the mold along the first horizontal direction; and a plurality of mold temperature controllers capable of supplying a heat transfer fluid to the molding mold and controlling the temperature of the molding mold to a desired temperature. An injection molding machine comprising a mechanism. 2. A bracket having an upper surface arranged substantially horizontally and moving along the first horizontal direction in the mold moving mechanism, and an end or a top portion of the bracket protruding from the upper surface of the bracket. An engaging member which is installed so as to be capable of being displaced in the forward and reverse directions along the direction, and which can be engaged with an engaging opening provided in the molding die when the end or the top is projected; 2. The injection molding machine according to claim 1, further comprising a spring member for urging the engagement member along a direction in which an end or a top of the engagement member protrudes from an upper surface of the bracket.