KR101660633B1

KR101660633B1 - Closing unit

Info

Publication number: KR101660633B1
Application number: KR1020150035142A
Authority: KR
Inventors: 베르너 카펠뮬러
Original assignee: 엥글 오스트리아 게엠베하
Priority date: 2014-03-26
Filing date: 2015-03-13
Publication date: 2016-10-10
Also published as: AT515586A1; DE102015003536B4; CN104943101B; KR20150111842A; AT515586B1; DE102015003536A1; CN104943101A

Abstract

The present invention includes a C-type machine frame (1), a fixed mold attaching plate (3) attached to one frame member (2), and the other frame member (4) A closing mechanism for driving the movable mold attaching plate 5 is attached to the machine frame 1 with the lid L and the free end of the frame members 2 and 4 of the machine frame 1 is deformed under the influence of the closing force A closing device for an injection molding machine. According to the invention, the movable mold mounting plate 5 is fixedly connected to the closing mechanism in its upper region and connected to the closing mechanism by at least one compression-setting sleeve 6 in its lower region .

Description

CLOSING UNIT

The present invention relates to a closing device for a molding machine having the features of claim 1 and a molding machine, particularly an injection molding machine, having such a closing device.

The closure device of the above-mentioned general type is called a beam-free closing device since the closure force is transmitted by a C-shaped machine frame rather than a beam member. The term " closing process " refers to a process in which mold halves secured to a mold mounting plate by means of a closing mechanism are provided against a mating member in order to prevent such molding material from being released from the mold, Is used to mean pressurization.

The free ends of the frame limbs of the machine frame are deformed under the influence of the closing force that occurs during the closing process and the mold halves arranged on the mold mounting plate unless there is a correcting means are not allowed in their upper areas, May appear.

The widest variety of means is known to prevent the opening gap from appearing in the mold halves by correcting for changes in the position of the mold mounting plate.

One possible option is to mount the at least one mold mounting plate in the form of a hinge so that in this case a hinge is placed slightly above the center plane of the mold mounting plate to allow a more uniform distribution of closing force Was found to be advantageous.

It is also known to correct the arrangement direction of the fixed mold mounting plate by the structural configuration of the free frame member of the machine frame to which the support element and / or the fixed mold mounting plate are connected. This structure makes it possible to fixedly attach the fixed mold attaching plate to the free frame member of the machine frame, thereby avoiding the drawbacks of attaching the fixed mold attaching plate in the form of a hinge.

The patent document AT 886 U1 describes a closing device which allows the movable mold mounting plate to be attached to the closing mechanism to prevent the mold mounting plate from showing an opening gap due to the closing force.

The present invention relates to a movable wedge plate, such as patent document AT 886 U1, but the object of the invention is to avoid the complex and costly structure presented in the patent document.

This object of the present invention is achieved by a closing device having the features of claim 1 and a molding machine having such a closing device. Advantageous embodiments of the invention are defined in the appended claims.

The present invention provides a simple structure in comparison with the prior art.

In comparison with a closure device having a hinge disposed slightly above the center plane of the mold mounting plate, the entire implementation of the closure force, i.e. the entire operation of the closure device by the closure force to the nominal closure force, So that a more uniform distribution of the closing force can be achieved.

If the closure device has, for example, an ejector device disposed between the end plate of the closing mechanism and the movable mold mounting plate, the present invention allows unobstructed access to the ejector device.

The present invention will now be described in more detail with reference to the accompanying drawings.

1 is a perspective view showing an embodiment of a closing device according to the present invention;
2 is a sectional view of Fig. 1;
Figure 3 is a partial detail view of Figure 2;
Figure 4 is a partial detail view of a portion of Figure 2 in greater detail.
FIG. 5 is a partial detail view of FIG. 3, showing a partial detail view of another embodiment of the present invention. FIG.

1 is a perspective view showing a part of a closing device of a molding machine (injection molding machine in this case). 2 shows a cross-sectional view.

Two frame members 2, 4 are provided on a C-shaped machine frame 1 extending in the longitudinal direction L. In this case, the frame members 2 and 4 are each formed of two side plates of the machine frame 1 and are spaced from each other in the transverse direction with respect to the longitudinal direction L of the injection molding machine having only one side plate .

In the C-type machine frame 1, a fixed mold attaching plate 3 and a movable mold attaching plate 5 are arranged. The movable mold attaching plate 5 is provided with a mold half portion (not shown) disposed on the mold attaching plates 3 and 5 toward the stationary mold attaching plate 3 by only a single end plate 7, Is movable in such a way that it can be pressed firmly against the opponent by the closing force.

In the upper region, the movable mold mounting plate 5 is fixedly connected to the end plate 7 of the closing mechanism by two columns 11. Also in this embodiment, the ejector plate 17 of the ejector apparatus which is not provided can be guided in these columns 11 (see Fig. 5).

In the lower region, the movable mold mounting plate 5 is attached to the end plate 7 by two compensators, each of which comprises a compression upsetting sleeve 6, a pulling cup, (8) and a compression upsetting bolt (9). The manner of operation will be described in more detail with reference to FIG.

In the lower region, the fixed mold mounting plate 3 is attached to the side plate of one frame member 2 of the C-type machine frame by means of the second compression-up setting sleeve 10. They can be attached to the other side plate in the same manner. The function of the second compression up setting sleeve will be described in more detail in FIG.

In the upper region of the lower region, the fixed mold attaching plate 3 is fixedly connected to the C-type machine frame 1. [

FIG. 3 shows the structure of a compensator. The compression-up setting sleeve 6 is supported at its one end (the left end in FIG. 3) by the end plate 7 and connected thereto. The other end (the right end in FIG. 3) of the compression-up setting sleeve 6 is supported by the pulling cup 8 and connected thereto. In the pulling cup 8, a compression set-up bolt 9 is disposed, one end of which is connected to the end of the pulling cup 8 by means of the bolt 12 and the other end of which is connected by bolts 13 Type mold mounting plate 5. The mold-

This multi-part construction of the compensator allows the overall length variation (by the sum of the length variations of each component) to be greater than when the compression upsetting sleeve 6 is connected directly to the movable mold mounting plate 5 .

The movable mold mounting plate 5 in the upper region is fixedly connected to the column 11 by bolts 14 and to the end plates 7 by such columns 11.

In the absence of the corrector, the movable mold attaching plate 5 pivots in such a manner that the mold attaching plates 3 and 5 are inclined from the parallel alignment state to the upward open state with the lower region as the center .

With the aid of the compensator, under the influence of the closing force, the arrangement can include a pivotal movement of the movable mold mounting plate 5 in the upper region about the bolt 14, (5) to move toward the end plate (7), which can be accomplished by compressive forging of the compression-up setting sleeve (6). The corresponding forcing force is transmitted to the pulling cup 8 and the compression-up setting sleeve 6 by the compression-setting bolt 9.

The mold mounting plates 3, 5 are at least substantially in parallel with each other by the closing force. As shown in this embodiment, this parallelism is substantially improved when a compensator is also provided for the stationary mold mounting plate 3. However, this is not absolutely necessary.

4 shows that the second compression-up setting sleeve 10 is disposed at the concave portion of the fixed mold attaching plate 3. As shown in Fig. One end of which is connected to the fixed mold mounting plate 3 by bolts 16 and the other end of which is connected to the C-shaped machine frame 1 by means of bolts 15. The lower mold area can be moved in the direction of the frame member 2 until the mold member 3 is fixed to the frame member 2 under the closing force. A corresponding gap is formed between the lower end of the fixed mold attaching plate 3 and the frame member 2 in an unloaded condition.

5 shows another embodiment of the present invention and differs from the above-mentioned embodiment only in that the ejector plate 17 is disposed in an area between the end plate 7 and the movable mold attaching plate 5. [ The ejector plate 17 is guided on the one hand by the column 11 (by the sliding sleeve 18) and on the other hand by the sleeve 19 arranged around the compensator. The displacement of the ejector plate 17 is made by a hydraulic displacement mechanism and the piston rod 20 of the ejector cylinder is shown in Fig.

Numerical example:

The distance between the lower area of the movable mold mounting plate 5 and the lower area of the end plate 7 is 440 mm (in the unloaded state), the diameter of the column 11 is 100 mm, 9 is 50 mm in diameter and the closing force is 300 tons, the lower region of the movable mold mounting plate moves by 0.44 mm in the direction of the end plate 7. The column 11 has a change in length of 0.2 mm. The total length change of the compression set-up sleeve 6, the compression set-up bolt 9 and the pulling cup 8 is 0.64 mm.

The fixed mold attaching plate 3 is pivoted by 0.05 degree in the rightward direction about the lower side portion thereof. On the other hand, the second press-up setting slit 3 is provided between the fixed mold attaching plate 3 and the C- If the eve 10 is not provided, the angle is 0.1 degrees.

1: Machine frame 2, 4: Frame member 3: Fixed mold mounting plate 5: Movable mold mounting plate 6: Compression-up setting sleeve 7: End plate 8: Pooling cup 9: Bolt, 10: second compression-setting sleeve, 11: column, 12, 13, 14, 15, 16: bolt, 17: ejector plate, 18: sliding sleeve, 19: sleeve, 20:

Claims

And a fixed mold attaching plate 3 is attached to one side frame member 2 and the other side frame member 4 is mounted on the other side frame member 4 in a longitudinal direction L of the machine frame 1, Type mold mounting plate 5 is mounted and a free end of the frame members 2 and 4 of the machine frame 1 is closed under the influence of the closing force applied during the closing process, Characterized in that the movable mold mounting plate (5) is fixedly connected to the closing mechanism in its upper region and connected to the closing mechanism by at least one compression-setting sleeve (6) in its lower region Device.

2. Closure device according to claim 1, characterized in that at least one compression set-up sleeve (6) is connected to the movable mold mounting plate (5) by a compression up-setting bolt (9).

2. Closure device according to claim 1, characterized in that at least one of the two compression set-up sleeves (6) is supported on the end plate (7) of the closing device.

2. Closure device according to claim 1, characterized in that at least one of the two compression set-up sleeves (6) is supported on the pulling cup (8).

5. Closure device according to claim 4, characterized in that a compression-setting bolt (9) is connected to the pulling cup (8).

The closing device according to claim 4, characterized in that the pulling cup (8) protrudes toward the concave portion side of the movable mold mounting plate (5).

2. A machine according to claim 1, characterized in that the stationary mold mounting plate (3) is connected to one side frame member (2) of the C-type machine frame (1) by at least one second compression up setting sleeve . &Lt; / RTI >

8. Closure device according to claim 7, characterized in that at least one second compression-setting sleeve (10) is arranged at least partly in the recessed part of the fixed mold mounting plate (3).

4. Closure device according to claim 3, characterized in that the movable mold mounting plate (5) is connected to the end plate (7) of the closing mechanism by at least two columns (11) in its upper region.

10. A closing device according to claim 9, characterized in that the ejector device is arranged in the end plate (7) and the ejector plate of the ejector device is guided in at least two columns (11).

An injection molding machine having a closure device as claimed in any one of claims 1 to 10.

The method according to claim 1,
At least one of the two compression set-up sleeves 6 is supported on the end plate 7 of the closing mechanism and the other is supported on the pulling cup 8,
Up setting bolt 9 is disposed in the pulling cup 8,
Wherein the compression up-setting bolt (9) is connected at one end to the end of the pulling cup (8) and at the other end to the movable mold mounting plate (5).