JPH11226999A - Supporting device of bed of injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a supporting device of a bed of an injection molding machine which absorbs vibration and also prevents anchor bolts, a floor surface and others from being damaged and, moreover, which can be manufactured and installed inexpensively. SOLUTION: A plurality of vibration-proof rubber members 10 are fitted to the support surface of a bed 1 of an injection molding machine whereon a clamping device A, a mold B, an injection device C, etc., are mounted. Two vibration-proof rubber members 10 out of them which are located on the clamping device A side are supported by a floor surface H in a state wherein they are inserted loosely into through holes 22 of anchor brackets 20 fixed on the floor surface H, while others are supported in a free state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold clamping device, a mold which is clamped and opened by the mold clamping device, and an injection device equipped with an injection device for injecting a molten resin into the mold. The present invention relates to a bed support device of a molding machine.

[0002]

2. Description of the Related Art Injection molding machines are well known, not to mention the name of the literature. They are used for measuring and injecting a mold clamping device, a mold having a cavity filled with a molten resin, and a resin material. And the like. Therefore, the movable mold is clamped to the fixed mold by the mold clamping device, the molten resin measured by the injection device is injected into the cavity of the mold, and after cooling and solidification, the movable mold is moved by the mold clamping device. Is opened, and the molded article is ejected by the ejector device to obtain the molded article. Incidentally, the injection molding machine vibrates when the movable mold is clamped and opened with respect to the fixed mold, or when the molded product is ejected by the ejector device. So, mold clamping device,
The mold, the injection device, etc. are mounted on a bed, and the bed is fixed to the floor via a vibration isolator.

FIG. 3 shows a conventional example in which a bed of an injection molding machine is fixed to a floor surface G via a vibration isolator.
That is, a bed 4 on which a mold clamping device, a mold, and the like are mounted.
A plurality of anti-vibration devices 41, 41,... These vibration damping devices 41, 41,... Comprise a protection fitting 42 and a rubber portion 43, as is well known, and the height thereof can be adjusted by leveling bolts 44. On the other hand, the angle 50 is attached to the floor surface G by fixing the first flange portion 52 with an anchor bolt 54. The bed 40 is fixedly attached to the second flange portion 53 of the angle 50 with fixing bolts and nuts 55.

[0004]

As described above, the bed 40 of the conventional injection molding machine is also supported by the vibration isolators 41, 41,. Is recognized. However, bed 40
And the angle 50 are interposed by the pads 57, 57, but are fixed in a fixed state by the fixing bolts and the nuts 55, so that the anti-vibration effect cannot be expected so much.
The vibration of the bed 40 is transmitted to the floor G via the angle 50. More specifically, the bed 40 is provided with the vibration isolator 4
Vibrates because it is supported by 1, 41,. This vibration is transmitted from the angle 50 to the anchor bolt 54 and the floor G. As a result, the anchor bolt 54 may be damaged by material fatigue. In addition, anchor bolt 5
Even if 4 is not damaged, the floor surface G may crack. If the anchor bolt 54 is damaged or the floor G is broken, the bed 40 is in an unregulated state and runs out of control due to vibration. In particular, runaway during automatic molding with a high cycle in an unmanned state may lead to a serious accident.
The bed 40 is fixed to a second flange 53 of the angle 50 with fixing bolts and nuts 55, and the first flange 52 of the angle 50 is fixed to the anchor bolt 5.
4, there is a disadvantage that the number of bolt alignments is large, and the manufacturing and installation costs are high. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks and problems. In addition to absorbing vibrations, it is possible to manufacture and install an inexpensive injection bolt without damaging anchor bolts, floors, etc. It is an object of the present invention to provide a bed support device for a molding machine.

[0005]

According to the present invention, there is provided a mold clamping device, comprising:
A mold to be opened, a bed of an injection molding machine equipped with an injection device and the like for injecting a molten resin into the mold, wherein the bed has a plurality of vibration-proof rubber members on a support surface thereof. Is attached, and the vibration-proof rubber member is configured to be supported on the floor surface in a state of being loosely inserted into a through hole of an anchor bracket fixed to the floor surface. According to a second aspect of the present invention, there is provided an injection molding machine equipped with a mold clamping device, a mold which is clamped and opened by the mold clamping device, an injection device for injecting a molten resin into the mold. The bed, wherein a plurality of vibration-proof rubber members are attached to a support surface of the bed, and at least two of the vibration-proof rubber members located on the mold clamping device side of the vibration-proof rubber members are floors. It is configured to be supported by the floor while being loosely inserted into the through hole of the anchor bracket fixed to the surface. According to a third aspect of the present invention, a rubber plate is interposed between the outer peripheral portion of the anti-vibration rubber member according to the first or second aspect and the inner peripheral portion of the through hole of the anchor bracket.

[0006]

Embodiments of the present invention will be described below. FIG. 1A is a plan view schematically showing the entire injection molding machine. As shown in this figure, the injection molding machine includes a mold clamping device A, a fixed mold and a movable mold. It comprises a mold B composed of a mold, an injection device C composed of a cylinder barrel and a screw, and the like. These are mounted on a bed 1 of an injection molding machine as is well known in the art.

According to the present embodiment, the bed 1 of the injection molding machine is supported by ten vibration isolators 2, 2'-6, 6 'as also shown in FIG. ing. A first embodiment of the two vibration isolator devices 2 and 2 'located at the ends on the mold clamping device A side is shown in FIGS. A second embodiment of the vibration isolators 3 to 6 'is shown in FIG. An anti-vibration device 2 according to the first embodiment includes an anti-vibration rubber member 10 and an anti-vibration rubber member 1.
Protective fitting 1 provided so as to cover the upper part of
1, a leveling bolt 12 for height adjustment, a lock nut 13, an anchor bracket 20 fixed to a floor surface H by an anchor bolt 24, and the like. In addition, a shim 14, non-slip sheets 15, 15 and the like are additionally provided.

A support bracket 1 'is attached to the lower surface of the bed 1 of the injection molding machine as shown in FIG. The leveling bolt 12 is screwed into the screw hole of the support bracket 1 '. Although the internal structure between the vibration-proof rubber member 10 and the protective fitting 11 will not be described in detail, the tip of the leveling bolt 12 reaches below the protective fitting 11 and the leveling bolt 1
By turning 2, the distance between the support bracket 1 'and the lower surface of the vibration-proof rubber member 10 can be adjusted. In the present embodiment, a shim 1 is used as an auxiliary member for adjusting the distance.
4 are interposed.

The anchor bracket 20 is formed of a plate having a predetermined thickness, and has a through hole 2 into which a vibration-proof rubber member 10 is dropped at a substantially central portion thereof as shown in FIG.
Two have been burned. In the present embodiment, a ring-shaped rubber plate 2 having a predetermined thickness is provided on the outer peripheral portion of the vibration damping rubber member 10.
1 is attached with an adhesive, the inner diameter of the through hole 22 is larger than the outer diameter of the rubber plate 21, and the rubber plate 21 is
2 will come loosely. In addition, anchor bracket 2
At the end of 0, through holes 23, 23 for inserting two anchor bolts 24 are formed.

The anti-vibration device 3 according to the second embodiment comprises:
Compared with the vibration isolator 2 of the first embodiment, the rubber plate 21, the anchor bracket 20, the anchor bolt 2
Just because there is no 4 etc., it is almost the same configuration,
In FIG. 2, similar members are denoted by the same reference numerals and will not be described repeatedly.

Next, the installation and operation of the bed 1 of the injection molding machine will be described. In bed 1 of the injection molding machine,
As described above, the anti-vibration device 2 of the first embodiment and the second
The anti-vibration device 3 of the embodiment is attached. On the other hand, two anchor brackets 20, 20 are mounted on the floor H to be installed.
Is fixed at a predetermined position with anchor bolts 24, 24.
Then, the rubber plates 21, 2 provided on the outer periphery of the vibration isolating rubber members 10, 10 of the vibration isolating device 2 of the first embodiment.
1 is inserted from above so as to enter the through holes 22, 22 of the respective anchor brackets 20, 20. Thereby, the bed 1 of the injection molding machine is positioned at a predetermined position, and is attached to the floor surface H.

Vibrations in all directions applied to the bed 1 of the injection molding machine are absorbed by the vibration isolating rubber members 10, 10,... Blindness due to vibration of the bed 1 of the injection molding machine, that is, walking, is regulated by the anchor brackets 20, 20. At this time, the lower surfaces of the vibration isolating rubber members 10, 10,... Come into direct contact with the floor surface H, which is generally made of concrete, and a large frictional force acts.
No large force acts on 0 and 20. Moreover, since the rubber plates 21, 21 and the vibration-proof rubber members 10, 10 are interposed between the bed 1 of the injection molding machine and the anchor brackets 20, 20, the anchor bolts 24, 24, the floor surface H, etc. Is not damaged by the vibration of the bed 1 of the injection molding machine.

According to the present embodiment, the rubber plate 2 is provided on the outer periphery of the vibration isolating rubber member 10 of the vibration isolator 2 of the first embodiment.
1 is provided, and the outer peripheral portion of the anti-vibration rubber member 10 has a structure that does not directly contact the through hole 22 of the anchor bracket 20 to protect the anti-vibration rubber member 10. It is clear that this can also be implemented. Also, regarding the installation, the anchor brackets 20, 20
Are fixed first, and the vibration-isolating rubber members 10, 10 are connected to the through holes 22 of the respective anchor brackets 20, 20.
22 has been described, but the vibration-proof rubber member 10
The anchor brackets 20, 20 are previously mounted on a rubber plate 21 attached to the outer peripheral portion of the vehicle, lowered onto the floor surface H, and the anchor brackets 20, 20 are fixed with anchor bolts 24, 24,. It is clear that this can be done. Furthermore, it is clear that the two anchor brackets 20, 20 can be implemented with one bracket having two through holes.

[0014]

As described above, according to the present invention, in the bed of the injection molding machine, a plurality of vibration-proof rubber members are attached to the support surface, and the vibration-proof rubber members are fixed to the floor surface. Since it is supported on the floor surface while being loosely inserted into the through hole of the anchor bracket, vibrations in all directions are absorbed by the vibration-proof rubber member. Blind motion due to vibration of the bed of the injection molding machine at this time is regulated by the anchor bracket.
In addition, according to the present invention, since a frictional force acts between the lower surface of the vibration isolating rubber portion and the floor surface, a large force does not act on the anchor bracket. Therefore, according to the present invention, the anchor bolt and the floor H
And the like are not damaged by the vibration of the bed of the injection molding machine. According to the second aspect of the present invention, at least two vibration-proof rubber members located on the mold clamping device side are supported on the floor surface in a state where they are loosely inserted into the through holes of the anchor bracket fixed to the floor surface. As a result, the number of anchor brackets can be reduced in addition to the above effects, and the installation cost can be reduced. According to the third aspect of the present invention, a rubber plate is interposed between the outer peripheral portion of the vibration-proof rubber member and the inner peripheral portion of the through hole of the anchor bracket. The effect of protecting the vibration-proof rubber member is obtained. Further, the cushioning effect of the rubber plate can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of the present invention.
Is a plan view schematically showing an injection molding machine and its bed, (b) is a cross-sectional view of the vibration isolator according to the first embodiment,
(C) is a plan view of the anchor bracket.

FIG. 2 is a cross-sectional view of a vibration isolator according to a second embodiment.

FIG. 3 is a cross-sectional view illustrating an example of a conventional vibration damping device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bed of injection molding machine 2, 2'-6, 6 'Anti-vibration device 10 Anti-vibration rubber member 20 Anchor bracket 21 Rubber plate A Mold clamping device B Mold C Injection device

[Procedure amendment]

[Submission date] April 28, 1998

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Figure 2

[Correction method] Change

[Correction contents]

FIG. 2

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Added

[Correction contents]

FIG. 3

Claims (3)

[Claims] 1. A mold clamping device (A), a mold (B) to be clamped and opened by the mold clamping device (A), an injection device (C) for injecting a molten resin into the mold, and the like. A bed (1) of an injection molding machine on which a plurality of anti-vibration rubber members (10, 10,...) Are attached to a support surface of the bed (1). The holes (22, 22) of the anchor brackets (20, 20) in which the members (10, 10, ...) are fixed to the floor surface (H).
A bed support device for an injection molding machine, wherein the bed support device is supported on a floor surface (H) while being loosely inserted into the bed. 2. A mold clamping device (A), a mold (B) that is clamped and opened by the mold clamping device (A), an injection device (C) for injecting a molten resin into the mold, and the like. Is a bed (1) of an injection molding machine on which a plurality of vibration isolating rubber members (10, 10,...) Are attached to a support surface of the bed (1). Two vibration-proof rubber members (10, 10) located at least on the mold clamping device (A) side of the rubber members (10, 10, ...).
Are anchor brackets (2) fixed to the floor (H).
A bed support device for an injection molding machine, wherein the bed support device is supported on a floor surface (H) while being loosely inserted in through holes (22, 22). 3. An outer peripheral portion of the vibration-isolating rubber member (10, 10) according to claim 1 or 2, and an anchor bracket (20, 10).
20) A bed support device for an injection molding machine in which a rubber plate (21, 21) is interposed between the through-hole (22, 22) and the inner peripheral portion of the through-hole (22, 22).