JPH078175Y2 - Supporting structure of mold board in injection molding machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support structure for a machine body of a mold plate such as a fixed plate of a horizontal injection molding machine.

[0002]

2. Description of the Related Art As a horizontal injection molding machine, as shown in FIG. 4, a machine body 1 is provided with a mold clamping unit 5 having a fixed plate 2, a movable plate 3 and an end plate 4, and an injection cylinder 6. The injection units 7 are connected to each other by center lines O ₅ , O
It is known that ₇ are aligned horizontally.

In the conventional injection molding machine described above, the fixed platen 2 and the end plate 4 of the mold clamping unit 5 are supported (foot parts) 2b, 4 on the lower surfaces of their respective main body parts 2a, 4a.
In the case of the fixed plate 2, the support 2b is brought into contact with the upper surface of the machine body 1 to fix it, and the end plate 4
In the case of, the support 4b is in contact with the upper surface of the machine body 1 and slidably supported. The movable board 3 is provided with a support 3b on the lower surface of the main body 3a (FIG. 5) except that it is floated from the machine body 1 and slidably supported by the tie rods 8 as shown in FIG. The upper surface of the body 1 is touched and supported by the tie rod 8 and the machine body 1.

[0004]

The fixed platen 2, the movable platen 3, and the end plate 4 (hereinafter abbreviated as mold plates 2, 3, 4) of the mold clamping unit 5 have different sizes depending on the mold clamping force. However, generally, when the mold clamping force is large, the mold plates 2, 3 and 4 also become large.

[0005] In the conventional support structure of the mold platen 2,3,4, for large mold platen 2,3,4 height dimension as the left side of FIG. 5, of course centerline O _5, O _7, i.e. The height of the machine center A is higher than that of the machine centers B of the small mold plates 2, 3 and 4 on the right side of FIG. 5, resulting in poor workability. Therefore,
The machine body 1 in which the height of the mold clamping unit 5 is lowered is separately manufactured so that the height of the machine center does not become high. However, in this method, the machine bodies 1 having different shapes are formed into the mold boards 2, 3, 3. 4 needs to be manufactured one by one according to the height dimension of 4, and there is a problem that it is troublesome, laborious and costly. In addition, since a small mold clamping unit is fitted to a mold with a large height, if the support is raised, the center of gravity is high and unstable.

Apart from the above, it fits the dimensions of the largest mold plate,
It is also practiced to manufacture a machine body 1 having a low height and change the height of the base 9 of the injection unit ₇ to match the center lines O ₅ and O ₇ of the mold clamping unit 5 and the injection unit 7. However, it is still troublesome and time-consuming.

The present invention provides a mold plate support structure for an injection molding machine, which can support mold plates having different height dimensions without changing the height of the machine center in a machine body having the same structure. With the goal.

[0008]

To achieve the above object, the present invention provides a mold clamping unit having a fixed plate, a movable plate and an end plate on a machine body, and an injection cylinder having an injection cylinder. In the injection molding machine in which the units are provided with their center lines aligned substantially horizontally, on the upper surface of the machine body of the mold clamping unit, the width of the main body of the mold plate such as the fixed plate of the mold clamping unit is A pair of left and right support seats are provided almost parallel to the center line by forming a large gap, and supports are provided on the left and right side surfaces of the main body of the mold board, respectively. The support is arranged in the gap between the support seats, and the supports are placed on the support seats to be supported.

[0009]

[Function] In the case of a mold plate having a small height, the support is provided at a low position on the side surface of the mold plate main body, and in the case of a mold plate having a large height size, the support is provided at a high position on the side surface of the main body part. The center heights from the bottoms of the supports of the molds of different sizes to each other.

In the mold board in which the bottom of the main body is lower than the bottom of the support, the main body lower than the bottom of the support is placed in the gap between the pair of left and right support seats, and the support is placed on the support seats. Supported by the body. Therefore, various types of injection molding machines using mold plates having different heights can be manufactured with one type of machine body with the machine centers having the same height.

[0011]

1 to 3 show an embodiment of the present invention.
In these figures, the same members and the like as those in FIGS. 4 and 5 are designated by the same reference numerals, and detailed description thereof will be omitted.

A pair of left and right support seats 10, 10 are provided on the upper surface of the machine body 1 so that their lengthwise directions are parallel to the center line O ₅ of the mold clamping unit 5. A gap G is formed between the pair of support seats 10, 10. The gap G is larger than the width W of the main body portions 2a, 3a, 4a of the mold plates 2, 3, 4. The support seat 10 and the gap G are normally connected from the fixed platen 2 to the end plate 4, but may be interrupted on the way unless the functions of the mold plates 2, 3 and 4 are affected.

Supports 2c, 3c and 4c are provided on the left and right side surfaces of each of the mold plates 2, 3 and 4, respectively. The supports 2c, 3c, and 4c are mold plates 2 having a small height.
In case of 3 and 4, as shown in the right side of FIG. 1 and FIG.
It is provided at a lower position on the side surface of the main body 2a, 3a, 4a, and in the case of the mold plates 2, 3, 4 having a large height, it is placed on the left side of FIG. 1 and at a position higher than the above as shown in FIG. Provided,
In the mold plates 2, 3 and 4 having different height dimensions, the center heights from the bottom surfaces of the supports 2c, 3c and 4c are matched with each other.

The supports 2c, 3c and 4c shown in the figure are the main body 2
Although formed integrally with a, 3a, 4a, this is manufactured as a separate member, and the main body 2a,
It may be attached integrally to 3a and 4a.

In the present invention, each of the mold plates 2, 3 and 4 has their supports 2c, 3c and 4c placed on the support seat 10 and supported on the machine body 1. At this time, support 2
body parts 2a, 3a, 4 lower than the bottom surfaces of c, 3c, 4c
The portions 2d, 3d, 4d of a are the gap G between the support seats 10, 10.
to go into. The fixed platen 2 is fixed to the machine body 1, and the movable platen 3
Needless to say, the end plate 4 is slidably supported on the support seats 10, 10.

Even if the heights of the mold plates 2, 3 and 4 are different, the supports 2c and 3 are provided on the mold plates 2, 3 and 4, respectively.
Since the center heights from the bottom surfaces of c and 4c are constant, when the supports 2c, 3c and 4c are placed on the support seat 10 to support the mold plates 2, 3 and 4, the height dimensions are large and small. Despite this, the height of the center line O5 does not change and is kept constant.

[0017]

As described above, the supporting structure of the mold plate in the injection molding machine of the present invention is such that the mold clamping unit having the fixed plate, the movable plate and the end plate and the injection cylinder are provided on the machine body. In an injection molding machine in which the provided injection units are provided with their center lines substantially horizontally aligned with each other, a main body of a mold plate such as a fixed plate of the mold clamping unit is provided on the upper surface of the machine body of the mold clamping unit. A pair of left and right support seats are formed substantially parallel to the center line with a gap larger than the width of the mold plate, and supports are provided on the left and right side faces of the main body of the mold plate. Since the parts are arranged in the gap between the pair of left and right support seats and the above supports are placed on the respective support seats and supported, two or more mold plates having different height dimensions are used. In injection molding machine You can align the heights of the machine center in the same.

Therefore, even with another injection molding machine using mold plates having different heights, it is not necessary to separately manufacture the machine body, which is less costly and the height of the injection unit can be adjusted. It is unnecessary and extremely rational. In addition, the center of gravity can be lowered and a stable support structure can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a mold plate support structure in an injection molding machine of the present invention.

FIG. 2 is a cross-sectional view showing a supporting structure for a template having a small height.

FIG. 3 is a cross-sectional view showing a support structure for a mold board having a large height.

FIG. 4 is a schematic view of an injection molding machine adopting a conventional support structure for a mold board.

FIG. 5 is a schematic view showing a conventional support structure for a mold board.

[Explanation of symbols]

1 Machine body 2 Fixed plate (mold plate) 2a Main body part 2c support 3 Movable plate (mold plate) 3a Main body part 3c support 4 End plate (mold plate) 4a Main body part 4c support 5 Mold clamping unit O ₅ Center line 6 Injection cylinder 7 Injection unit O ₇ Center line 10 Support seat G Gap W Body width

Claims (1)

[Scope of utility model registration request] 1. A mold clamping unit including a fixed platen, a movable platen, and an end plate, and an injection unit including an injection cylinder are provided on a machine body with their center lines aligned substantially horizontally. In the injection molding machine, a gap larger than the width of the main body of the mold plate such as the fixed plate of the mold clamping unit is formed on the upper surface of the machine body of the mold clamping unit so that the pair of left and right support seats are aligned with the center line. The supports are provided substantially parallel to each other, and supports are provided on the left and right side surfaces of the main body of the mold board.The mold board has the main body arranged in a gap between a pair of left and right support seats, and each support is A support structure for a mold board in an injection molding machine, which is mounted and supported on a support seat.