JP2003071894A - Movable mold supporting unit for molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To assure an accuracy of a molding without damaging a mold unit by uniformly deforming the mold unit even by receiving a mold clamping force even when a linear guide block is provided at a lower end and to eliminate the damage of the block. SOLUTION: A movable mold supporting unit for a molding machine comprises a mold mounting surface in which a mold is mounted, a guide hole engaged with a tie bar 12, a load bearer in which a toggle bar of a toggle mold clamping unit formed on a back surface is mounted, a mounting block elastically mounted at a lower end, and the linear guide block mounted at the mounting block and sliding along a guide rail 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a movable mold supporting device for a molding machine.

[0002]

2. Description of the Related Art Conventionally, for example, in an injection molding machine,
Molded products are formed by injecting resin melted and heated in a heating cylinder at high pressure to fill (fill) the cavity space of the mold device, and cool and solidify the resin in the cavity space. It is like this.

To this end, the mold device is composed of a fixed mold and a movable mold, and the mold clamping device moves the movable mold forward and backward to bring the movable mold into and out of contact with the fixed mold to open and close the mold. , Mold closing, mold clamping and mold opening can be performed. And the mold clamping device is
In general, a fixed platen that supports a fixed mold and a movable platen that supports a movable mold are provided, and a toggle mechanism as an opening / closing device that advances and retracts the movable platen is provided, and the toggle mechanism is provided in a drive unit. It is operated by driving the electric motor, hydraulic cylinder device, etc.

FIG. 2 is a side view schematically showing a mold clamping device of a conventional injection molding machine.

In the figure, 112 is a frame, 111 is a fixed platen fixed to the frame 112, 118 is a movable platen, and a fixed distance from the fixed platen 111. This is toggle support. Further, 114 is the fixed platen 11
A tie bar as a plurality of, for example, four guide means installed between the 1 and the toggle support 118.

Reference numeral 101 denotes the fixed platen 111.
Is a movable platen for supporting a movable mold 105 which is arranged so as to face the movable mold 105 and is movable along the tie bar 114 (movable in the left-right direction in the drawing). Further, the movable platen 10 in the fixed platen 111
The fixed die 115 is attached to the die attachment surface facing the fixed die 1, and the movable die 105 is attached to the die attachment surface of the movable platen 101 opposed to the fixed platen 111.

The lower end 1 of the movable platen 101
A linear guide block 107 as a movable platen support device that slides along a guide rail 108 attached to the upper surface of the frame 112 is provided on the 06 to support the weight of the movable platen 101. Here, the linear guide block 107 includes a front block 107a and a rear block 107b,
The movable platen 101 can be smoothly moved back and forth because it slides while being fitted into the guide rail 108. The tie bar 114 is not bent by the load of the movable platen 101.
There is no waste.

A drive device (not shown) for moving an ejector pin may be attached to the rear end (left end in the figure) of the movable platen 101.
Then, the movable platen 101 and the toggle support 11
A toggle mechanism (not shown) is attached between the drive mechanism 8 and the drive mechanism 8, and a drive device for operating the toggle mechanism is attached to the rear end of the toggle support 118. The movable platen 1
On the back surface of 01, upper and lower load receiving portions 102 having pin insertion holes into which toggle pins of upper and lower toggle arms of the toggle mechanism are inserted are formed.

As a result, the movable platen 101 is moved forward (moved to the right in the figure) to close the mold, and a propulsive force from the drive source is multiplied by a toggle magnification to generate a mold clamping force. And, the mold is clamped by being transmitted from the lower toggle arm to the load receiving portion 102.

[0010]

However, in the above-mentioned conventional movable mold supporting device, when the movable platen 1 receives a strong force from the toggle mechanism due to the mold closing and the mold clamping.
A bending moment is generated at 01, and the bending moment causes the movable platen 101 to be unevenly deformed and tilted. Therefore, at the time of mold closing and mold clamping, an unreasonable force may be applied to the mating surface of the mold device to damage it, or the resin filled in the cavity space may leak out. Further, the front block 107a and the rear block 107b of the linear guide block 107 may be damaged by being applied with a vertical force.

FIG. 3 is a diagram showing a force applied to a movable platen having no conventional linear guide block, and FIG. 4 is a diagram showing a force applied to a movable platen having a conventional linear guide block.

As shown in FIG. 3, the upper and lower load receiving portions 102 are located above and below the movable mold 105, respectively. Then, the movable mold 10
5 is pressed against the fixed mold 115 shown in FIG. 2 and is in an immovable state.

Therefore, when a strong force F1 to the right in the figure from the toggle mechanism is received, a reaction force F2 from the fixed mold 115 is received, so that a bending moment acts on the movable platen 101, causing the movable platen 101 to move. The bending causes the die mounting surface 101a to be deformed like 101b. In this case, the same bending moment is also generated in the fixed platen 111. Along with that, the mating surface 105a of the movable mold 105 attached to the mold attaching surface 101a is also deformed like 105b. The movable platen 1 in the figure
The deformation of the mold mounting surface 101a of No. 01 and the mating surface 105a of the movable mold 105 are exaggerated for convenience of description.

However, since the movable platen 101 does not have the linear guide block 107 at the lower end,
The lower end also deforms similarly to the upper end. Therefore, the mold mounting surface 101a is deformed substantially vertically symmetrical with respect to the central axis 121 of the movable platen 101 and the movable mold 105 like 101b. In addition, the mating surface 105 of the movable mold 105
Like a 105b, a is also deformed substantially vertically symmetrical with respect to the central axis 121.

However, the movable platen 10 having the linear guide block 107 at the lower end as shown in FIG.
In the case of 1, the movement of the lower end is the linear guide block 1
Be bound by 07. Therefore, the movable platen 10 receives the strong force F1 to the right in the figure from the toggle mechanism.
When a bending moment acts on 1, the die mounting surface 101a
Is deformed asymmetrically in the vertical direction with respect to the central axis 121, and tilts to the right in the figure.
Accordingly, the mating surface 105a of the movable mold 105 mounted on the mold mounting surface 101a is also like 105b ′,
It deforms asymmetrically with respect to the central axis 121 and tilts to the right in the figure.

Here, since the deformation of the die mounting surface 101a and the mating surface 105a of the movable die 105 is actually slight, the movable platen 101 is moved to the central axis 12 by the deformation.
In the case of being deformed substantially vertically symmetrical with respect to 1, that is, in the case of being uniformly deformed, the deformation amount with respect to the mold mounting surface 101a of 101b and 105b and the mating surface 105a of the movable mold 105 is small at any part. is there. Therefore, even when the mold is closed and clamped, the mating surface of the mold device is not damaged due to an excessive force, and the resin filled in the cavity does not leak out.

However, when the movable platen 101 is deformed unevenly, as shown in FIG.
The deformation amount of b ′ and 105b ′ with respect to the die mounting surface 101a and the mating surface 105a of the movable die 105 becomes large in some parts. Therefore, at the time of mold closing and mold clamping, an unreasonable force is applied to the mating surface of the mold device at the above-mentioned portion to break the resin, or the resin filling the cavity space leaks out. Further, even when the mold is opened, an unreasonable force is applied to the mating surface of the mold device and the mold is damaged, or the periphery of the molded product is damaged.

Also, due to the bending moment, an upward force or a downward force is applied to the linear guide block 107 arranged at the lower end portion 106 of the movable platen 101. By the way, the linear guide block 10
7 slides in a state of being fitted in the guide rail 108 to support the weight of the movable platen 101. Therefore, since the linear guide block 107 does not have a structure assuming that an upward force is applied, if the upward force is large, the linear guide block 1
07 or the guide rail 108 will be damaged. Also,
If the downward force applied in the same direction as the weight of the movable platen 101 is large, the load will exceed the allowable limit, so the linear guide block 107 or the guide rail 108.
Will be damaged.

Thus, the linear guide 107 is provided at the lower end.
In the case of the movable platen 101 provided with, the movable platen 101 is deformed unevenly when receiving a strong force F1 to the right in the drawing from the toggle mechanism, and the mold mounting surface 101a and the mating surface 105a of the movable mold 105 are Since the amount of deformation in the part of the part increases, at the time of mold closing and mold clamping, the mating surface of the mold device is damaged due to excessive force and the resin filled in the cavity leaks at the part. I will put it out. Further, even when the mold is opened, an unreasonable force is applied to the mating surface of the mold device and the mold is damaged, or the periphery of the molded product is damaged. Further, the linear guide block 107 or the guide rail 108 will be damaged.

Further, although there is a mold clamping device of a type in which a hydraulic cylinder or the like directly presses the center position of the movable platen by a drive device, this type of mold clamping device is said to have little deformation of the movable platen.

However, if a large mold is used,
When a mold having a special shape is used, the movable platen and the mold are deformed vertically asymmetrically, and the above-mentioned problems occur.

The present invention solves the problems of the above-mentioned conventional movable mold supporting device of a molding machine, so that even if a linear guide block is provided at the lower end, it is deformed uniformly by receiving a mold clamping force. Therefore, it is an object of the present invention to provide a movable mold supporting device for a molding machine in which the mold device is not damaged, the accuracy of a molded product is ensured, and the linear guide block is not damaged.

[0023]

Therefore, in the movable mold supporting device of the molding machine of the present invention, a mold mounting surface to which the mold is mounted, and a mounting block elastically mounted to the lower end portion, A linear guide block which is attached to the attachment block and slides along a guide rail.

In the movable mold supporting apparatus for another molding machine of the present invention, the linear guide block slides while being fitted in the guide rail.

In the movable mold supporting apparatus for a molding machine according to still another aspect of the present invention, the mounting block has a seat surface pressed by the head of a mounting bolt screwed into the lower end. A spring element is provided between the seat surface and the seat surface of the head of the mounting bolt.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The movable mold supporting device of the present invention can be applied to various devices and applications, but in the present embodiment, for convenience of explanation, a case of being applied to an injection molding machine will be described. .

FIG. 5 is a schematic view of an injection molding machine according to the embodiment of the present invention.

In the figure, 21 is a frame, 23 is a fixed platen fixed to the frame 21, and 34 is movably arranged with respect to the frame 21 with a predetermined distance from the fixed platen 23. It is a toggle support as a base plate.

Reference numeral 12 is a tie bar as a guide means provided between the fixed platen 23 and the toggle support 34, for example, four guide means. The tie bar 12
The right ends in the figures are each fixed to the fixed platen 23 by a fixture 27.

Reference numeral 11 denotes a movable platen as a movable mold supporting device which is disposed so as to face the fixed platen 23 and is movable along the tie bar 12 so as to be movable back and forth (movable in the left-right direction in the drawing). is there. Further, the fixed mold 25 is attached to the mold mounting surface 37 of the fixed platen 23 facing the movable platen 11, and the movable mold is mounted on the mold mounting surface 16 of the movable platen 11 facing the fixed platen 23. 24 is attached.

The movable platen 11 has tie bars 12 at positions corresponding to the respective tie bars 12.
A tie bar guide hole that is a through hole that engages with the tie bar guide hole is formed. Then, the inner peripheral surface of the tie bar guide hole comes into contact with and slides on the outer peripheral surface of the tie bar 12. Further, an ejector pin driving device (not shown) for moving the ejector pin may be attached to the back surface (left side in the drawing) of the movable platen 11.

Further, a front linear guide block 17a as a linear guide block and a rear linear guide block 17b as linear guide blocks are attached to the lower end of the movable platen 11 via a guide attachment block 18 as an attachment block. The front linear guide block 17a and the rear linear guide block 17b are
It slides along a guide rail 28 attached to the upper surface of the frame 21. Here, the guide rail 28 is parallel to the tie bar 12.

A toggle mechanism 22 as a toggle type mold clamping device is provided between the movable platen 11 and the toggle support 34, and a drive means for clamping the injection molding machine is provided at the rear end of the toggle support 34. The drive device 30 is attached. The drive device 30 has a drive source 31 such as a servo motor, and can move the crosshead 35 as a driven member forward and backward to operate the toggle mechanism 22.

As a result, the movable platen 11 is moved forward (moved in the right direction in the figure) to close the mold, and the propulsive force from the drive source 31 is multiplied by the toggle magnification to generate a mold clamping force. The mold clamping is performed by the mold clamping force.

The toggle mechanism 22 includes a toggle lever 36 which is swingably supported by the crosshead 35.
The toggle lever 32 is swingably supported by the toggle support 34, and the toggle arm 33 is swingably attached to the movable platen 11. The toggle lever 32 and the toggle lever 36 are connected to each other. while,
Also, the toggle lever 32 and the toggle arm 33 are linked to each other. Here, the movable platen 1
A load receiving portion 13 is formed on an upper portion and a lower portion on the back surface of 1, and a front end of a toggle arm 33 is swingably attached to the load receiving portion 13.

Next, the linear guide device attached to the lower end of the movable platen will be described.

FIG. 1 is a side view of a mounting portion of a linear guide block according to an embodiment of the present invention, which is an enlarged view of portion A of FIG. 5, and FIG. 6 is a sectional view taken along the arrow B of FIG. 1 in the embodiment of the present invention. Is.

First, guide mounting blocks 18 are attached to the left and right lower end portions of the movable platen 11 by a plurality of, for example, four mounting bolts 46. A plurality of, for example, four screw holes 42 are formed on the lower surface of the movable platen 11. On the other hand, the guide mounting block 18 is provided with bolt through holes 43 at positions corresponding to the screw holes 42, respectively. Then, a bolt head accommodating hole 44 is formed so as to be continuous with the lower portion of the bolt through hole 43 in the drawing. Here, the diameter of the bolt head housing hole 44 is larger than the diameters of the bolt head and the bolt through hole 43 of the mounting bolt 46, and the bottom surface 45 of the bolt head housing hole 44 has the mounting bolt 46. It functions as a seat surface pressed by the head of the, and the bolt through hole 43 is located at the center thereof. The diameter of the bolt through hole 43 is preferably larger than the diameter of the mounting bolt 46.

Then, from the bottom in the figure, the mounting bolt 4
6 is screwed into the screw hole 42 through the bolt through hole 43. Here, a spring element 47 is arranged between the bottom surface 45 of the bolt head housing hole 44 and the seat surface of the bolt head of the mounting bolt 46. The spring element 47 is, for example,
Spring washers, coil springs, rubber bushes, etc. may be used as long as they have elasticity. As a result, the guide mounting block 18 is elastically mounted on the lower surface of the movable platen 11.

The front linear guide block 17a is provided on the lower surfaces of the front and rear ends of the guide mounting block 18.
The rear linear guide block 17b is fixed. The front linear guide block 17a and the rear linear guide block 17b are fixed to locations where the bolt through hole 43 and the bolt head housing hole 44 do not exist, as shown in FIG. Then, the front linear guide block 17a and the rear linear guide block 1
7b slides in a state of being fitted in the guide rail 28, that is, slides.

Here, the guide rail 28 is attached to the upper surface of the frame 21 via a guide rail attaching member 41, as shown in FIG. Further, it has a substantially I-shaped cross-sectional shape similar to a rail of a railway, and has recesses formed on both side surfaces. On the other hand, the front linear guide block 1
The sliding surfaces of the 7a and the rear linear guide block 17b that come into contact with the guide rails 28 have a cross-sectional shape in which a convex portion that fits into the concave portion is formed. Therefore, the all linear guide block 17a and the rear linear guide block 17b do not move vertically and horizontally but slide in the front-back direction. It is desirable that grease as a lubricant be supplied between the sliding surfaces of the front linear guide block 17a and the rear linear guide block 17b and the surface of the guide rail 28.

As a result, the movable platen 11 can move on the guide rail 28 in the left-right direction in FIG. 1 without applying a load to the tie bar 12.

Next, the operation of the movable mold supporting apparatus having the above structure will be described.

FIG. 7 is a diagram showing a force applied to the movable platen according to the embodiment of the present invention.

First, the drive source 31 of the drive unit 30 is operated, and the crosshead 35 is moved forward to operate the toggle mechanism 22. This allows the movable platen 1
1 is advanced, the movable mold 24 is joined to the fixed mold 25, mold closing is performed, and then mold clamping is performed. Subsequently, resin is injected at high pressure from an injection device (not shown),
The cavity space of the movable mold 24 and the fixed mold 25 is filled. Then, the resin is cooled and solidified to form a molded product. Then, the drive source 31
Is operated and the crosshead 35 is retracted, the movable platen 11 is retracted, the movable mold 24 is separated from the fixed mold 25, and mold opening is performed. continue,
When an ejector rod (not shown) is moved forward, the ejector pin projects into the cavity inside the movable mold 24 to eject the molded product. As a result, the molded product is taken out. By repeating the above operation, a large number of molded products are molded.

Here, the movable platen 11 is a heavy object, and the movable mold 24, which is also a heavy object, is attached, but the front linear guide block 17a and the rear linear guide attached to the lower end portion. Block 17
Since it is supported from below by b and the guide rail 28, a large downward load is not applied to the tie bar 12.

Therefore, since the tie bar 12 does not bend, the height position of the movable platen 11 does not fluctuate and is always constant. Therefore, the mating surface of the movable mold 24 and the mating surface of the fixed mold 25 are the same. Since the mold closing and the mold clamping are performed in a completely corresponding state, the resin filling the cavity space does not leak out, and the movable mold 24 or the fixed mold 25 is not damaged.

When the grease is supplied in the gap between the tie bar guide hole formed in the movable platen 11 and the tie bar 12, the inner peripheral surface of the tie bar guide hole and the outer peripheral surface of the tie bar 12 are supplied by the grease. Since the lubrication between the two is always good and the sliding is smooth, the movable platen 1
1 can move back and forth smoothly along the tie bar 12. Similarly, when grease is supplied to the gap between the front linear guide block 17a and the rear linear guide block 17b and the guide rail 28, the grease causes the sliding surface of the front linear guide block 17a and the rear linear guide block 17b. Since the lubrication between the surface of the guide rail 28 and the surface of the guide rail 28 is always good and slides smoothly, the movable platen 11 can advance and retreat smoothly along the guide rail 28.

Here, at the time of mold closing and mold clamping, as shown in FIG. 7, the upper and lower toggle arms 3 of the toggle mechanism 22.
The pressing force F1 from 3 acts on the load receiving portions 13 formed on the upper and lower portions of the back surface of the movable platen 11. on the other hand,
The movable mold 24 is attached to the mold mounting surface 16 of the movable platen 11.
The reaction force F2 from the fixed platen 23 acts via the fixed mold 25.

In this case, it can be considered that the center of the reaction force F2 acts along the central axis 29 of the mold mounting surface 16 located in the middle of the load receiving portions 13 formed in the upper and lower portions. The pressing force F1 from the upper and lower toggle arms 33 acts on the load receiving portion 13 which is located above and below the central axis 29. Therefore, a bending moment that tends to bend the movable platen 11 to the right in the drawing is generated in a portion of the movable platen 11 located above and below the central axis 29.

Here, "problems to be solved by the invention"
In the case of the conventional fixed platen having the linear guide block at the lower end as shown in FIG.
Since the lower end portion is restrained by the linear guide block, when a bending moment acts on the movable platen, the die mounting surface is deformed vertically asymmetrically and tilted. On the other hand, in the present embodiment, the guide mounting block 1
Since the movable platen 11 is elastically attached to the lower surface of the movable platen 11, the lower end of the movable platen 11 is not restricted by the front linear guide block 17a and the rear linear guide block 17b, which are linear guide blocks, and the movable platen 11 can be vertically moved to some extent. It is designed to move to.

Therefore, the mold mounting surface 16 of the movable platen 11 is deformed substantially vertically symmetrical with respect to the central axis 29, as in 16 '. Further, the mating surface 24a of the movable mold 24 is also deformed substantially vertically symmetrically with respect to the central axis 29 like 24a '.

Here, the deformation of the die mounting surface 16 and the mating surface 24a of the movable die 24 is exaggerated in FIG. 7 for convenience of explanation, but is actually small, so
When the movable platen 11 is deformed substantially vertically symmetrically with respect to the central axis 29, that is, when the movable platen 11 is uniformly deformed, the mold mounting surface 16 of the 16 'and 24a' and the mating surface 24a of the movable mold 24 are compared. The amount of deformation is minute at any part. Therefore, even when the mold is closed and clamped, the mating surface of the mold device is not damaged due to an excessive force, and the resin filled in the cavity does not leak out. In addition, the movable platen 11
Since the amount of deformation of the lower end of the guide attachment block 18 is actually small, it is within the range of the amount of movement allowed by the portion where the guide attachment block 18 is elastically attached to the movable platen 11.

Further, since the guide mounting block 18 is elastically mounted on the lower surface of the movable platen 11, the front linear guide block 17a and the rear linear guide block 17b fixed to the guide mounting block 18 are provided.
Does not receive a force due to a bending moment generated in the movable platen 11 during mold closing and mold clamping. That is, the upward force and the downward force due to the bending moment as described in "Problems to be solved by the invention" are not applied to the front linear guide block 17a and the rear linear guide block 17b.

Therefore, the front linear guide block 17a and the rear linear guide block 17b, and
The guide rail 28 that slides in a state where the front linear guide block 17a and the rear linear guide block 17b are fitted only receives the weight of the movable platen 11 and the movable mold 24, and the guide rail 28 in a downward direction further than that. No force or upward force is applied. Therefore, the front linear guide block 17a, the rear linear guide block 17b, and the guide rail 28 do not need to have a high allowable load limit or have a structure capable of withstanding an upward force.

As described above, in this embodiment, the guide mounting block 18 to which the front linear guide block 17a and the rear linear guide block 17b are fixed is elastically attached to the lower end of the movable platen 11.

Therefore, even if a bending moment that tries to bend the movable platen 11 is generated during mold closing and mold clamping,
Since the lower end of the movable platen 11 is not constrained, the mold mounting surface 16 is deformed uniformly. Therefore, since the mold closing and the mold clamping are performed without applying an unreasonable force to the mating surfaces of the movable mold 24 and the fixed mold 25, the resin filled in the cavity space leaks out or the molded product is molded. There is no damage to the area around the movable mold 2
4 or the fixed mold 25 is not damaged.

The front linear guide block 17a, the rear linear guide block 17b, and the guide rail 28 are also provided.
Will not be damaged and the durability will be improved. Further, since the front linear guide block 17a, the rear linear guide block 17b, and the guide rail 28 do not need to be upsized or have a complicated structure, manufacturing cost and maintenance cost can be reduced.

In this embodiment, the horizontal plate type injection molding machine in which the movable platen moves in the lateral direction (horizontal direction) has been described, but the movable mold supporting apparatus of the present invention is
It can also be applied to a vertical type injection molding machine in which the movable platen moves in the vertical direction (vertical direction). Further, the movable mold supporting device of the present invention can be applied to a molding machine such as a die cast machine and an IJ sealing press, in addition to the injection molding machine.

Further, the present invention is not limited to the above-mentioned embodiments, but can be variously modified within the scope of the present invention, and they are not excluded from the scope of the present invention.

[0061]

As described in detail above, according to the present invention, in the movable mold supporting device of the molding machine, the mold mounting surface to which the mold is mounted and the lower end portion are elastically mounted. It has a mounting block and a linear guide block mounted on the mounting block and sliding along a guide rail.

In this case, even when a bending moment for bending the movable mold supporting device is generated during mold closing and mold clamping,
Since the lower end of the movable mold supporting device is not constrained, the mold mounting surface is deformed uniformly. Therefore, the mold is closed and the mold is clamped without applying an unreasonable force to the mating surfaces of the movable mold and the fixed mold, so that the resin filled in the cavity space leaks out or around the molded product. Is not damaged, and the movable mold or the fixed mold is not damaged.

Further, the linear guide block and the guide rail are not damaged and the durability is improved. Further, since it is not necessary to increase the size of the linear guide block or the guide rail and to make the structure complicated, it is possible to reduce the manufacturing cost and the maintenance cost.

[Brief description of drawings]

FIG. 1 is a side view of a mounting portion of a linear guide block according to an embodiment of the present invention, which is an enlarged view of part A of FIG.

FIG. 2 is a side view schematically showing a mold clamping device of a conventional injection molding machine.

FIG. 3 is a diagram showing a force applied to a movable platen that does not include a conventional linear guide block.

FIG. 4 is a diagram showing a force applied to a movable platen including a conventional linear guide block.

FIG. 5 is a schematic diagram of an injection molding machine according to an embodiment of the present invention.

FIG. 6 is a sectional view taken along the arrow B of FIG. 1 in the embodiment of the present invention.

FIG. 7 is a diagram showing a force applied to the movable platen according to the embodiment of the present invention.

[Explanation of symbols]

11 Movable platen 12 tie bar 13 Load receiving part 16, 37 Mold mounting surface 17a Front linear guide block 17b Rear linear guide block 18 Guide mounting block 22 Toggle mechanism 28 Guide rail 32, 36 toggle lever 46 mounting bolt 47 Spring element

Claims (3)

[Claims] 1. A mold mounting surface on which (a) a mold is mounted, (b) a mounting block elastically mounted on a lower end portion, and (c) a mounting block mounted on the mounting block along a guide rail. A movable mold supporting device for a molding machine, comprising a linear guide block that slides. 2. The movable mold supporting device of a molding machine according to claim 1, wherein the linear guide block slides while being fitted in the guide rail. 3. The mounting block includes a seat surface pressed by a head of a mounting bolt screwed into the lower end, and a spring is provided between the seat surface and a seat surface of the head of the mounting bolt. A movable mold supporting device of a molding machine according to claim 1 or 2, wherein elements are arranged.