WO1998021018A1

WO1998021018A1 - Compression device for molding, injection compression molding machine, and injection compression molding method using compression device

Info

Publication number: WO1998021018A1
Application number: PCT/JP1997/004004
Authority: WO
Inventors: Tomokazu Abe; Tsuneo Matsui
Original assignee: Idemitsu Petrochemical Co., Ltd.
Priority date: 1996-11-14
Filing date: 1997-11-04
Publication date: 1998-05-22

Abstract

A compression device for molding, which ensures uniformity in a compression force onto a molten resin, readily achieves general miniaturization and is easy to mount on a molding machine, an injection compression molding machine and an injection compression molding method, which use the compression device for molding. The compression device for molding is disposed rearwardly of a moving die section on a molding machine, which advances a moving die section toward a stationary die section of a metallic die to perform molding while applying a compression force onto a molten resin filled in the die, and functions to generate a pressing force pushing the moving die section toward the stationary die section. The compression device for molding comprises a plurality of inclined members (31, 32) provided with inclined surfaces (31A, 32A) adapted to come into surface contact with each other, and generates a pressing force by advancing the respective inclined members (31) toward the inclined members (32). Incidentally, those ones of the plurality of inclined members (31), which move in the same direction, are engaged with one another through a single interlocking plate (36). Accordingly, it is possible to have all the inclined members (31) moving in synchronism, and a synchronizing mechanism is made lightweight, small in size and easy to mount on the molding machine. Further, an object of the invention can be more fully attained by employing a configuration, in which the inclined members (31) different in a direction of movement are provided, those ones of the inclined members, which move in the same direction, are engaged with one another through the interlocking plate (36), and those ones of the inclined members, which differ in the direction of movement, are engaged with one another through a link (41).

Description

Technical Field of the Invention Compression device for molding, injection compression molding machine using this compression device, and injection compression molding method

The present invention provides a molding compression apparatus for applying a compressive force to a resin in a mold when performing injection compression molding or press molding, an injection compression molding machine using the molding compression apparatus, and an injection compression molding machine. It relates to a molding method. Background art

In injection compression molding, after filling the inside of a closed mold with molten resin, molding is performed by applying a compressive force to the molten resin filled in the mold by further clamping the mold. It is.

According to such injection compression molding, since molding is performed with a low resin injection pressure, a molded product is not warped or distorted, and it is possible to produce a molded product having a good shape even with a thin wall. There is an advantage that you can.

As a molding machine for performing the injection compression molding, a mold clamping device for advancing a movable mold movably provided in the molding machine among molds toward a fixed mold fixed to the molding machine; Generally, it is provided with a compression device for compressing the molten resin filled in the mold.

As a conventional compression device, as shown in JP-A-57-95429 and JP-A-60-122128, a movable type that increases or decreases the volume of a mold cavity is disclosed. A part is provided inside the mold, and the movable part is advanced through a pin abutting the movable part to reduce the volume of the cavity, thereby compressing the molten resin filled in the mold. Are known. In such a compression apparatus, there is a problem that versatility is lacking because injection compression molding cannot be performed on a normal mold having no movable part therein.

In order to solve this problem, as shown in FIG. 16, the present applicant has united a mechanism for pressing the movable mold 91 toward the fixed mold 92 and united the movable mold 91 and the fixed mold 92 together. A compression device 95 which is detachable between a mold 93 and a mold clamping device 94 is proposed (Japanese Patent Application Laid-Open No. Hei 7-164500). Here, the dimension a shown in FIG. 16 has the same meaning as the dimension a in FIG. 1 described later.

As shown in FIG. 17, the compression device 95 includes a pair of inclined members 97 and 98 having inclined surfaces 96 inclined with respect to the compression direction, arranged along the compression direction. The compression force is generated by moving the inclined member 98 on the mold clamping device 94 side in a direction orthogonal to the compression direction.

A plurality of sets of these inclined members 97 and 98 are provided. Of these, the movable inclined members 98 are arranged like a tom, as shown in Fig. 18, and their movements are synchronized. In addition, a rack 99 is provided on the side. A gear 100 that engages with the rack 99 is provided inside the inclined member 98. The synchronization mechanism 101 is configured to include the rack 99 and the gear 100.

According to such a compression device 95, since a structure in which the entire movable die 91 is pressed to apply a compressive force is employed, injection compression molding can be performed with a normal die having no built-in movable part. The advantage is that the versatility of molding can be improved.

In addition, since the movement of the inclined member 98 is synchronized by the synchronization mechanism 101, the pressing force of each inclined member 98 is not biased, and the compressive force is uniformly applied to the molten resin. The advantage is that a molded product with good dimensional accuracy and appearance can be reliably molded.

However, in the compression device 95 as described above, the inclined member 98 is disposed around the gear 100 of the synchronization mechanism 101, and has a complicated structure in which each of the inclined members 98 and the gear 100 are engaged with each other. In addition, since a large driving force is applied to the inclined member 98, a large torque is applied to the gear 100 of the synchronizing mechanism 101, and the gear 100 must be of a certain diameter with a certain size, and is small and lightweight. There is a problem that conversion may be difficult.

Particularly, when a large molded product is molded, the compression device becomes extremely large and heavy depending on the shape of the molded product, so that there is a problem that the compression device may not be able to be mounted on the molding machine.

Accordingly, an object of the present invention is to provide a molding compression apparatus which ensures uniformity of the compressive force to the molten resin, facilitates downsizing as a whole, and facilitates mounting on a molding machine. An object of the present invention is to provide an injection compression molding machine and an injection compression molding method using a molding compression device. Disclosure of the invention

The present invention provides a molding compression apparatus (first invention) for applying a compressive force to a resin in a mold when performing injection compression molding or press molding, and an injection compression apparatus using the molding compression apparatus. It comprises a molding machine (second invention) and an injection compression molding method (third invention).

According to a first aspect of the present invention, there is provided a mold for molding a molten resin while applying a compressive force to the molten resin by advancing a movable mold toward a fixed mold of a mold filled with the molten resin. A first and a second inclined portion disposed behind the movable die of the machine and having inclined surfaces inclined with respect to the forward direction of the movable die, wherein the first and second inclined portions are the movable die. Before Are arranged along the forward direction, the inclined surfaces of the first and second inclined portions are in surface contact with each other, and the first and second inclined portions are oriented in a direction orthogonal to the forward direction of the movable mold. A molding compression device that generates a pressing force to press the movable mold toward the fixed mold by relatively moving the movable mold to the fixed mold. In the plane orthogonal to the direction, a plurality of moving parts having the same moving direction are provided, and at least one of the first and second inclined parts is provided so as to be movable in the same direction as the moving direction of the inclined part. It is characterized by being engaged with a single interlocking plate.

In the above, the interlocking plate is a flat plate-shaped rigid body having an elongated hole extending along the moving direction of the inclined portion, and a driving means for driving the inclined portion is provided inside the elongated hole. It is desirable that they are arranged.

In addition, the first and second inclined portions are provided with the same moving direction and a different moving direction in a plane orthogonal to the moving direction of the movable mold, and the latter is provided via a synchronization mechanism. A mode in which they are engaged with each other can also be adopted. In this case, a mode is adopted in which the first and second inclined portions, which are usually engaged with separate interlocking plates, are engaged with each other via a synchronization mechanism. Further, in this case, it is preferable that the synchronization mechanism has a link whose central portion is pivotally supported and whose end is engaged with the inclined portion.

Further, the interlocking plate may be provided with an auxiliary inclined portion having an inclined surface having the same inclination angle as the inclined portion.

Further, as another mode of providing an auxiliary inclined portion, the first and second inclined portions are provided singly in a plane orthogonal to a moving type forward direction, and at least one of the first and second inclined portions is provided with the inclined portion. Engage with a single interlocking plate movably provided in the same direction, and the interlocking plate One of the first and second auxiliary inclines corresponding to the first and second inclines is fixed at a position separated from the first and second inclines in the moving direction. The first and second auxiliary inclined portions have inclined surfaces inclined with respect to the advance direction of the movable die, and are arranged along the advance direction, and the inclined surfaces are in surface contact with each other. An aspect characterized by the following can also be adopted.

Also in this aspect, the interlocking plate is a flat rigid body having an elongated hole formed along the moving direction of the inclined portion, and a driving means for driving the inclined portion is provided inside the elongated hole. Desirably located o

Further, as the first and second inclined portions, a plurality of members each having the same moving direction in a plane orthogonal to the forward direction can be provided, and thus, the first and second inclined members are provided. In the case where a plurality of members are provided, it is preferable that the members having the same moving direction are engaged with the same interlocking plate.

Further, as the first and second inclined portions, a plurality of members each having a different moving direction in a plane perpendicular to the forward direction may be provided. In this manner, the first and second inclined portions may be provided. When a plurality of members are provided, it is desirable that members having different moving directions be engaged with separate interlocking plates and be engaged with each other via a synchronization mechanism.

Here, it is preferable that the synchronizing mechanism has a link whose central portion is pivotally supported and whose end is engaged with the inclined portion, as described above.

A second invention of the present invention provides the molding compression device of the first invention, wherein the movable die is advanced toward a fixed die of a mold filled with a molten resin. An injection compression molding machine for molding the molten resin while applying a compressive force to the molten resin, wherein the movable mold is pressed toward the fixed mold by the molding compression device, thereby forming the mold. It is characterized in that the molten resin injected inside can be compressed.

In the above, the injection compression molding machine is configured such that the molten resin is injected into the mold in a closed state while leaving the moving distance of the movable mold, and the injected molten resin is In order to apply a compressive force, it is desirable that the molding compression device is configured to press the movable die toward the fixed die.

A third invention of the present invention is an injection compression molding method using the injection compression molding machine according to the second invention, wherein after the molten resin is filled in the mold, the molding compression device is operated. Then, the molten resin injected into the mold is compressed by pressing the movable mold toward the fixed mold.

In the above, in order to apply a compressive force to the injected molten resin after injecting the molten resin into the interior of the mold while the mold is closed while leaving the moving distance of the movable mold, It is desirable that a molding compression device presses the movable mold toward the fixed mold to completely close the mold.

In the present invention, the movement of each inclined member is synchronized with each other by the interlocking plate, and the movement timing and the movement distance are the same. This ensures uniformity of the compressive force on the molten resin.

Further, in one aspect of the present invention, since the inclined members having the same moving direction engage with each other via the interlocking plate, all the inclined members having the different moving directions are interlocked by the synchronization mechanism. There is no need to engage the inclined members with the synchronization mechanism, and the representative inclined members are engaged with each other. Only simplifies the overall structure of the synchronization mechanism.

Examples of the synchronization mechanism include a mechanism using a gear, a mechanism having a center portion pivotally supported and a link having an end engaged with the inclined portion, and a mechanism for synchronizing movement with a belt. Various types can be adopted, the range of available synchronization mechanisms can be expanded, and by selecting the most appropriate type of synchronization mechanism, both compact and lightweight compressors can be realized. Thus, the above object is achieved.

Furthermore, the combination of the interlocking plate and the link further simplifies the structure of the synchronization mechanism, and ensures that the synchronization mechanism is reduced in weight and size. In addition, it is possible to freely arrange a plurality of inclined members, and it is possible to obtain a compression device that generates the optimal compression force according to the molded product, and it is easy to mount it on a molding machine by making it lightweight and compact. Nevertheless, sufficient compression force is ensured.

In particular, even in the case of molding a large molded product, the number of inclined members corresponding to the size of the molded product can be easily arranged at the optimum position according to the shape of the molded product. Therefore, the number of inclined portions can be minimized, the compression device does not become extremely large and heavy, and can be easily mounted on a molding machine.

In addition, in the injection compression molding method using the injection compression molding machine as described above, the molten resin filled in the mold is compressed by the above-described molding compression device, so that the size of the molded product is limited. This makes it possible to produce molded products with excellent shape and dimensional accuracy, while maintaining the uniformity of the compression force, even for large-sized products, while taking advantage of the advantages of injection compression molding.

In another aspect of the present invention, the first and second auxiliary inclined portions are arranged at positions separated from the first and second inclined portions along the moving direction, and at least one of the first and second auxiliary inclined portions is separated from the first and second inclined portions. It is fixed to the interlocking plate, As a result, the relative movement of the first and second auxiliary inclined portions is linked to the relative movement of the first and second inclined portions, so that even if there is only one set of the first and second inclined portions, The first and second auxiliary inclined portions make it possible to disperse and arrange a plurality of pressed portions of the movable die, and when the movable die is moved forward, the movable die is biased to one position. No, a well-balanced pressing force is applied, and the movable type maintains the parallel state with the fixed type.

Therefore, the number of the first and second inclined portions and the first and second auxiliary inclined portions can be minimized, and the driving means for driving the first and second inclined portions can be minimized. In order to form a molded product, if the first and second inclined portions and the first and second auxiliary inclined portions are arranged according to the shape of the molded product, the compression device can be downsized. It can be easily mounted on the molding machine.

In addition, since the compression device is small, the compression device can be mounted on a small injection compression molding machine, and in the case of a large injection compression molding machine, a plurality of the compression devices are used. This is also possible.

Further, in the injection compression molding method using the above-mentioned injection compression molding machine, since the molten resin filled in the mold is compressed by the above-described molding compression device, a well-balanced pressing force is obtained. Since it is added to the movable mold and is kept parallel to the fixed mold, uniformity of the compressive force applied to the molten resin is secured, and it is possible to manufacture molded products with excellent shape and dimensional accuracy Becomes

In addition, since the compression device is small, the compression device can also press a movable core provided on a large movable die. For this reason, it is possible to apply a partial pressing force to the movable mold as needed, for example, to apply a compressive force to a part of the molten resin. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a side view showing the entirety of an injection compression molding machine according to first and second embodiments of the present invention.

FIG. 2 is an enlarged sectional view showing a state before operation of the compression device according to the second embodiment of the present invention.

FIG. 3 is a perspective view showing a main part of the compression device of the embodiment.

FIG. 4 is a partially broken perspective view showing the back side of the compression device shown in FIG.

FIG. 5 is a view similar to FIG. 2 showing the state after the operation of the compression apparatus of the embodiment.

FIG. 6 is a view similar to FIG. 2 showing a third embodiment of the present invention.

FIG. 7 is a schematic diagram showing a modification of the present invention.

FIG. 8 is a side view showing an entire injection compression molding machine according to a fourth embodiment of the present invention.

FIG. 9 is an enlarged sectional view showing a state before operation of the compression device of the embodiment.

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FIG. 10 is a perspective view showing a main part of the compression device of the embodiment. FIG. 11 is a view similar to FIG. 9 but showing the operation of the compression apparatus of the embodiment.

FIG. 12 is a view similar to FIG. 10 showing the fifth embodiment of the present invention. FIG. 13 is a partially broken perspective view showing the back side of the compression device shown in FIG.

FIG. 14 is a view similar to FIG. 10 showing the sixth embodiment of the present invention. FIG. 15 is a schematic diagram showing a modification of the present invention.

FIG. 16 is a view similar to FIG. 1 showing a conventional example.

FIG. 17 is a side view showing the conventional compression device.

FIG. 18 is a front view showing the conventional compression device. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same members as those already described are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

FIG. 1 shows an injection compression molding machine 1 according to first and second embodiments of the present invention. The injection compression molding machine 1 includes a molten resin 2 injected from an injection device 1A inside a closed mold 10 in which a moving distance of a moving mold 10B with respect to a fixed mold 10A is left by a dimension a. The molding is performed while compressing the filled molten resin 2 by pressing the movable mold 10B with a compression device 20 disposed behind the movable mold 10B.

The injection compression molding machine 1 has a fixed plate 3 on which a fixed mold 10A is fixed, a movable plate 4 provided with a movable mold 10B, and this movable plate 4 is moved toward the fixed plate 3. A mold-clamping device 5 for advancing is provided.

The movable plate 4 is slidably provided along a tie bar 8 bridged between a fixed plate 7 to which a hydraulic cylinder device 6 for mold clamping is fixed and a fixed plate 3. Things.

The mold clamping device 5 has a toggle mechanism 9 to which the piston rod 6A of the hydraulic cylinder device 6 is connected, and the pressing force of the hydraulic cylinder device 6 is increased by the toggle mechanism 9 to move the moving plate 4 forward. Thus, the mold 10 is clamped. Here, a mold clamping pressure receiving block 3 </ b> A is provided between the movable plate 4 and the fixed plate 3. The mold clamping pressure receiving block 3A comes into contact with the moving template 4 when the moving template 4 is advanced, and receives the high-pressure mold clamping force of the toggle mechanism 9. The parallelism between the plates 3 and 4 is ensured by the mold clamping pressure receiving block 3A.

Note that the hydraulic cylinder device 6 is a double-acting type in which the piston port 6A can both move forward and backward. The mold 10 is closed by the advance of the piston rod 6A, and the mold 10 is opened by the retreat of the piston port 6A.

As described above, during the filling of the resin or after the filling of the resin, temporary release of the cavities of the mold 10, compression performed after the release, and the like can be freely performed under the conditions and procedures of the injection compression molding. Settings are available.

The compression device 20 has a fixed substrate 21 attached to the moving plate 4 and a moving substrate 22 that moves forward and backward with respect to the fixed substrate 21. Among them, the movable board 22 has a movable mold 10B attached to the front surface, is provided slidably along a guide bar 23 planted on the fixed board 21, and is provided with a movable board 22. The tension spring 24 is urged toward the movable substrate 22 side by the tension spring 24.

An inclined member 31 and an inclined member 32 as first and second inclined portions are provided between the fixed substrate 21 and the movable substrate 22. However, the linked plate is not shown in FIG. FIG. 1 can also be regarded as an injection compression molding machine according to a second embodiment of the present invention, in which a synchronization mechanism is not shown.

FIG. 2 is an enlarged view showing a state before the operation of the compression device according to the second embodiment of the present invention. It is a large sectional view. As shown in FIG. 2, the inclined member 31 and the inclined member 32 have inclined surfaces 31A and 32A inclined with respect to the moving direction of the movable mold 10B. It is arranged inside 33A and the convex member 33B. Inside these members 33A and 33B, the inclined members 31 and 32 are arranged along the forward direction of the movable mold 10B in a state where the inclined surfaces 31A and 32A are in surface contact with each other.

The inclined member 31 is provided in the substantially box-shaped concave member 33A so as to be movable in a direction orthogonal to the forward direction of the movable mold 10B, and is provided with a hydraulic cylinder device 34 fixed to the concave member 33A. It is connected to the tip of piston port 34A. The inclined member 31 is moved toward the inclined member 32 by the hydraulic cylinder device 34.

On the other hand, the inclined member 32 is fixed to a substantially plate-shaped convex member 33B. Here, since the inclined member 31 is movable, one of the inclined members 31 and 32 is movable relative to the other.

In such a compression device 20, the inclined member 31 is advanced in the direction shown by the arrow A in the figure while the inclined surfaces 31A and 32A of the inclined member 31 and the inclined member 32 are in surface contact with each other. A pressing force for pressing the movable mold 10B toward the fixed mold 10A is generated.

Here, the concave member 33A has a plane 35 perpendicular to the forward direction of the movable mold 10B. The inclined member 31 provided on the concave member 33A is movable along a plane 35 of the concave member 33A. The angle between the inclined surface 32A and the plane 35 is usually 2 to 20 degrees, preferably 3 to 15 degrees, and more preferably 4 to 10 degrees. If the angle is less than 2 degrees, the moving distance of the movable mold 10 B will be short, and it may be difficult to secure a sufficient moving distance.If the angle exceeds 20 degrees, it is difficult to move the inclined member 31. Need Power may be excessive.

As shown in FIG. 3, the concave member 33A has a plurality of inclined members 31B to 31E.

Of these, the inclined members 31B and 31C and the inclined members 31D and 31E move in different directions from each other, that is, move in opposite directions to each other. The moving direction and the moving directions of the inclined member 31D and the inclined member 31E are the same, respectively. Also, the inclined members 31B, 31C and the inclined members 31D, 31E having the same moving direction are , Respectively, are engaged with each other via the interlocking plate 36.

The interlocking plate 36 is a flat rigid body having a long hole 37 extending along the moving direction of the inclined member 31. In order to accommodate the interlocking plate 36, the recessed member 33A is provided with a recess 38 having the above-mentioned flat surface 35 as a bottom surface, and the interlocking plate 36 extends along the flat surface 35 inside the recess 38. It is movable.

Inside the elongated hole 37 of the interlocking plate 36, an inclined member 31 and a hydraulic cylinder device 34 as a driving means for driving the inclined member 31 are arranged. Among the components arranged inside the elongated hole 37, the inclined member 31 is fixed to the interlocking plate 36 by the projection 39. On the other hand, in the hydraulic cylinder device 34 fixed to the concave member 33A, a gap is provided between the hydraulic cylinder device 34 and the inner surface of the elongated hole 37 of the interlocking plate 36 so as not to interfere with the movement of the interlocking plate 36. I have. In FIG. 3, the hydraulic cylinder device 34 is disposed on each of the inclined members 31B to 31D, but it is sufficient that one hydraulic cylinder device 34 is disposed for each interlocking plate.

A plurality of guide members 40 are provided on the periphery of the concave portion 38 so as to engage with the interlocking plate 36 and guide the interlocking plate 36 along the moving direction described above. ing.

As shown in FIG. 4 (a partial cutaway view on the back side of FIG. 3), the inclined member 31C and the inclined member 31E whose movement directions are opposite to each other are connected to a link member 41 as a synchronization mechanism. Are engaged with each other.

That is, the bottom portion 42 of the concave member 33A is provided with a long hole 43 extending along the moving direction of the inclined member 31C and the inclined member 31B, and a concave portion 44 for accommodating the link member 41. I have.

The link member 41 has a central portion pivotally supported by the concave member 33A, and is rotatable within a predetermined angle range inside the concave portion 44. Each of both ends of the link member 41 is provided with an engagement portion 45 formed of a long hole extending in the radial direction of the rotation center axis.

Each of the inclined member 31C and the inclined member 31E is provided with bar-shaped engaging projections 46C and 46E extending toward the bottom portion 42 of the concave member 33A. The engaging protrusions 46C and 46E reach the engaging portion 45 of the link member 41 through the elongated hole 43 of the concave member 33A, and are engaged with the engaging portion 45.

With the link member 41, the operation of the inclined member 31C and the operation of the inclined member 31E are synchronized with each other, so that the movement timing and the movement distance are the same.

Next, the forming operation (forming procedure) of the first and / or second embodiment will be described.

First, the mold 10 and the compression device 20 are mounted on the injection compression molding machine 1 as shown in FIG. At this time, the hydraulic cylinder device 34 of the compression device 20 has its screw rod 34A retracted.

Here, when the injection compression molding machine 1 is started, first, the mold clamping device 5 is operated, and the movable plate 4 is moved toward the fixed plate 3, and the moving distance of the movable mold 10B is set to the dimension. Close the mold 10 leaving only a. This At this time, the dimension a can be set, for example, in the range of 0.1 to 100 bandits.

At this time, a mold clamping pressure receiving block 3A is provided between the movable plate 4 and the fixed plate 3. Thus, in a state where the toggle mechanism 9 of the mold clamping device 5 is fully extended, the plates 3 and 4 become parallel, and the parallel state of the plates 3 and 4 is maintained in a stable state.

After that, the molten resin is injected into the mold 10 from the injection nozzle of the injection device 1A.

The molten resin to be injected is thermoplastic, and is used for general-purpose resins such as polyethylene, polypropylene, polystyrene, ABS, etc., engineering plastics such as polycarbonate, polyamide, and polyacetal, and all other types. An injection-moldable polymer material can be used.

After a lapse of a predetermined time from the start of injection of the injection device 1A, or after a lapse of a predetermined time after the injection screw provided inside the injection device 1A reaches a predetermined position, the compression device 20 is started. Here, the compression device 20 may be started after or during injection charging of the resin, and the amount of the resin charged into the mold 10 may be set arbitrarily. Can be.

Then, the inclined member 31 driven by the hydraulic cylinder device 34 advances toward the inclined member 32 as shown in FIG. 5, and the internal gap G between the concave member 33A and the convex member 33B is increased. . As a result, the movable mold 10B is pressed toward the fixed mold 10A, and a predetermined compressive force is applied to the molten resin filled in the mold 10.

Here, a plurality of hydraulic cylinder devices 34 for driving the inclined members 31 are provided, and each of them operates individually. However, the interlocking plate 36 and the link member 41 allow the entire inclined member 31 to be driven. The movement of 31 B to 31 E Synchronized, the movement timing and movement distance become the same.

For this reason, the movable mold 10B moves forward while always maintaining accurate parallel accuracy with respect to the fixed mold 10A, and as a result, the compressive force applied to the molten resin in the mold 10 is biased. The molded product obtained is free from warpage or distortion, has good shape and dimensional accuracy, and has a one-piece structure in which the fixed type 10A and the movable type 10B are slidably fitted. Even so, the sliding parts of each other do not suffer from wear damage.

With the pressure applied to the molten resin by the compression device 20, the molten resin is cooled and solidified for a predetermined time. When a predetermined time has elapsed and the molten resin has sufficiently solidified, the mold clamping device 5 is operated to move the moving plate 4 backward, and the hydraulic cylinder device 34 of the compression device 10 is operated to move the inclined member 31 backward. However, the movable substrate 22 is retracted by the urging force of the tension spring 24. As a result, the movable mold 10B is separated from the fixed mold 10A, and the mold 10 is opened. Then, the mold clamping device 5 is operated, the mold 10 is opened, and the inside of the mold 10 is opened. Remove the molded product and complete the molding. Thereafter, the above-described injection compression molding operation is repeated as necessary.

According to the above-described embodiment, the following effects can be obtained. That is, the inclined members 31 having the same moving direction are connected to each other by the interlocking plate 36, and the inclined members 31C and 31E having different moving directions are engaged with the link member 41 which is a synchronous mechanism. Because of the interlock, the movable mold 10B moves forward while always maintaining accurate parallel accuracy with respect to the fixed mold 10A, and the compressive force applied to the molten resin in the mold 10 becomes uniform without bias .

Therefore, it is possible to obtain a molded product having good shape and dimensional accuracy without warpage or distortion, and even if the fixed mold 10A and the movable mold 10B have an in-row structure in which the movable mold 10B is slidably fitted. However, it is possible to suppress abrasion damage of sliding parts of each other. In addition, since the inclined members 31B to 31E having the same moving direction are connected to each other by the interlocking plate 36, when the inclined members 31D and 31E having different moving directions are interlocked by the synchronization mechanism, all the inclined members are moved. There is no need to engage 31 and 32 with the synchronization mechanism, and only one set of representative inclined members 31 and 32 must be engaged, and a very simple link member 41 is used as the synchronization mechanism. can do.

Further, the link member 41 and the interlocking plate 36 are combined, and the inclined member 31 is provided inside the elongated hole 37 provided in the interlocking plate 41, and the hydraulic cylinder device 34 for driving the inclined member 31 is provided. The compression device 20 can be significantly compacted even if the compression force required for molding is secured, and the compression device 20 can be easily mounted on the injection compression molding machine 1. .

As a result, even if it is necessary to provide a large number of inclined members 31 and 32 in order to form a large molded product, the positions of the inclined members 31 and 32 can be freely set, and the structure of the synchronization mechanism is simplified. Therefore, the synchronization mechanism can be reliably reduced in weight and size, and the compression device 20 can be easily mounted on the injection compression molding machine 1 without being significantly large and heavy. Possible FIG. 6 shows a third embodiment according to the present invention. In this embodiment, the flat interlocking plate 36 in the first and second embodiments is an interlocking plate 51 provided with an auxiliary inclined portion 50 protruding from the surface.

That is, the auxiliary inclined portion 50 is a projection having an inclined surface 50A that is inclined in the same manner as the inclined member 31. The auxiliary inclined portion 50 protrudes from the surface around each of the long holes 37 of the interlocking plate 51, and the hydraulic cylinder device It is fixed at a position behind 34.

In addition, the engaging protrusions 46 46E are omitted from the engaging members 31C and 31E. On the other hand, the interlocking plate 51 is provided with an engagement projection (the center axis of the link) 47 that engages with the engagement portion 45 of the link member 41 through the elongated hole 43 of the concave member 33A. Have been. As a result, the inclined members 31B and 31C and the inclined members 31D and 31E, which move in mutually different directions, engage with each other via the interlocking plate 51 and the link member 41, and the movement thereof is reduced. Synchronized. On the other hand, the convex member 33B fitted with the concave member 33A is additionally provided with an auxiliary inclined portion 52 having an inclined surface 52A in surface contact with the inclined surface 50A of the auxiliary inclined portion 50.

The inclined member 31 has a rising portion 53 along a pair of opposing sides of the inclined surface 31A. On each of the opposing side surfaces of the rising portion 53, a groove 54 is provided along the inclined surface 30A.

The inclined member 32 is provided with a pair of projections (not shown) that fit into the grooves 54 of the inclined member 31. Thus, the inclined member 31 and the inclined member 32 always maintain a state of surface contact.

For this reason, in the present embodiment, not only does the movable substrate 22 advance due to the advance of the inclined member 31, but also the movable substrate 22 also retracts as the inclined member 31 retreats. The tension spring 24 in the embodiment is omitted.

The groove 54 usually has a T-shaped cross section. It is preferable that the maximum width of the T-shaped groove is about 80% of the width of the inclined member 31, and the minimum width is about 60. In this case, when the inclined member 31 is retracted, the inclined member 31 and the inclined member 32 come into contact with each other with a width of about 20% of the width of the inclined member 31.

In this embodiment as well, the same operation and effect as those of the first or second embodiment can be obtained. In addition, since the auxiliary inclined portions 50 and 52 are added, the contact area is increased, and the compression device 20 is provided. Operation can be performed more smoothly. In addition, the effect of improving the uniformity of the compressive force applied to the molten resin filled in the mold 10 can be added.

As described above, the first to third embodiments of the present invention have been described. However, the present invention is not limited to these embodiments and examples described later, and various improvements and modifications can be made without departing from the gist of the present invention. Design changes are possible.

For example, the compressive force applied to the resin filled in the mold is not limited to the one generated by moving the entire movable mold of the mold, but the movable part of the movable mold can be moved. A compression force is generated by partial movement of only the mold, or a part of the mold other than the movable mold, for example, a part corresponding to the molding cavity of the fixed mold can be moved and compressed by moving this part A force may be created.

Furthermore, in each of the above embodiments, the compression device in which only the first inclined portion is provided so as to be movable is adopted. However, the present invention is not limited to this, and the compression device in which only the second inclined portion is provided so as to be movable, A compression device may be provided in which both the first and second inclined portions are movably provided. In short, the compression device is configured such that the movable type is fixed by moving the first and second inclined portions relative to each other. Any device that generates a pressing force that presses toward the surface may be used.

The interlocking plate is not limited to one in which a plurality of inclined portions are arranged in series, but may be one in which the inclined portions are arranged in parallel or one in which the inclined portions are arranged vertically and horizontally.

Furthermore, the arrangement of the interlocking plates is not limited to the arrangement parallel to the moving direction of the inclined portion, and a plurality of interlocking plates 51 are connected in series as shown in FIGS. 7 (A) and 7 (B). It is also possible to adopt a serial arrangement in which the arrangement is arranged, a radial arrangement in which the interlocking plates 51 are arranged in a radial manner, and the like.

Here, in the case where the arrangement of the interlocking plate 51 is arranged in series or radially, the rotating link members 55, 56 are opposed to the rotating shaft members 57 in the radial direction. A long hole 58 extending in the inclined direction is provided, and an engaging projection 46 provided on the side of the interlocking plate 51 is engaged with the long hole 58 of the link member 55, 56. 51 may be linked to synchronize their operations.

Further, the synchronization mechanism is not limited to the link, and may be a configuration including a timing belt, a chain, and a gear. However, if the link is employed as in the above-described embodiment, the compression device may be used. The effect that remarkable simplification can be obtained.

Further, the molding machine to which the compression device is attached is not limited to the injection molding machine, but may be a press molding machine, and performs molding while applying a compressive force to the molten resin by advancing the movable mold toward the fixed mold. Any molding machine may be used. Examples of the molding method include a normal injection compression molding method, a molding method in which a molten resin is injected into a mold in which a skin material is previously disposed inside to obtain a laminated molded product, and a melt injection molding method. A molding method for obtaining a foamed molded article by adding a foaming agent to the resin, or a molding method for injecting gas into a molten resin filled in a mold to obtain a molded article having a hollow portion. In addition, the present invention can be applied as long as there is a step of applying a compressive force to the resin.

Furthermore, the compression device is operated not only by simply performing compression by operating the hydraulic cylinder device, but also by appropriately expanding and reducing the spacing of the cavities during molding in performing compression. Is also good.

FIG. 8 shows an injection compression molding machine 1 according to a fourth embodiment of the present invention. In FIG. 8, except for the portion surrounded by the fixed substrate 21 and the movable substrate 22, it has the same structure and function as in FIG. 1, and the description is as described above. In FIG. 8, an inclined member 61 and an inclined member 62 as first and second inclined portions are provided between the fixed substrate 21 and the movable substrate 22. As shown in FIG. 9, the inclined member 61 and the inclined member 62 have inclined surfaces 61A and 62A inclined with respect to the moving direction of the movable mold 10B. It is arranged inside 63A and the convex member 63B. Inside these members 63A and 63B, the inclined members 61 and 62 are arranged along the forward direction of the movable mold 10B in a state where the inclined surfaces 61A and 62A are in surface contact with each other.

The inclined member 61 is provided in the substantially box-shaped concave member 63A so as to be movable in a direction orthogonal to the moving direction of the movable die 10B, and is a piston of the hydraulic cylinder device 64 fixed to the concave member 63A. It is connected to the tip of the rod 64A. The inclined member 61 is moved toward the inclined member 62 by the hydraulic cylinder device 64.

On the other hand, the inclined member 62 is fixed to a substantially plate-shaped convex member 63B. Here, since the inclined member 61 is movable, one of the inclined members 61 and 62 is movable relative to the other.

Such a compression device 20 is configured such that the inclined member 61 is advanced in the direction indicated by the arrow A in the drawing while the inclined surfaces 61A and 62A of the inclined member 61 and the inclined member 62 are in surface contact with each other. A pressing force for pressing the movable mold 10B toward the fixed mold 10A is generated.

Here, the concave member 63A has a plane 65 orthogonal to the forward direction of the movable mold 10B. The inclined member 61 provided on the concave member 63A is movable along a plane 65 of the concave member 63A.

As shown in FIG. 10, the concave member 63A is provided with a plurality of inclined members 61B and 61C. These inclined members 61B and 61C are transferred to each other. The moving directions are the same, and the same interlocking plate 66 is engaged. The interlocking plate 66 is a flat rigid body in which a long hole 67 extending along the moving direction of the inclined member 61 is formed. In order to accommodate the interlocking plate 66, the recessed member 63A is provided with a recess 68 having the above-mentioned flat surface 65 as a bottom surface. Inside the recess 68, the interlocking plate 66 extends along the flat surface 65. It is movable.

Inside the elongated hole 67 of the interlocking plate 66, an inclined member 61 and a hydraulic cylinder device 64 as a driving means for driving the inclined member 61 are arranged. Among those arranged inside the elongated hole 67, the inclined member 61 is fixed to the interlocking plate 66 by the projection 69. On the other hand, a gap is provided between the hydraulic cylinder device 64 fixed to the concave member 63A and the inner surface of the elongated hole 67 of the interlocking plate 66, and the hydraulic cylinder device 64 It does not interfere with movement.

A plurality of guide members (not shown) that engage with the interlocking plate 66 and guide the interlocking plate 66 along the above-described movement direction are provided on the periphery of the concave portion 68.

The interlocking plate 66 includes, at a position separated from the inclined member 61 along the moving direction of the inclined member 61, an auxiliary inclined member that is a first auxiliary inclined portion corresponding to the inclined member 61 that is the first inclined portion. 71 is fixed.

Returning to FIG. 9, an inclined member 72 as a second auxiliary inclined portion is fixed to a position corresponding to the inclined member 71 on the convex member 63B facing the interlocking plate 66. These auxiliary inclined portions 71, 72 have inclined surfaces 71A, 72A inclined with respect to the advance direction of the movable mold 10B, and are arranged along the advance direction. The inclined surfaces 71A and 72A are in surface contact. The inclined surfaces 71A, 72A of the auxiliary inclined portions 71, 72 have the same inclination angle as the inclined surfaces 61A, 62A of the inclined members 61, 62.

Next, the forming operation (forming procedure) of the present embodiment will be described. The molding operation from the mounting of the mold to the start of the injection is the same as described above, and the type of the molten resin to be injected is also the same as described above.

After a lapse of a predetermined time from the start of injection of the injection device 1A, or after a lapse of a predetermined time after the injection screw provided inside the injection device 1A reaches a predetermined position, the compression device 20 is started. Here, the activation of the compression device 20 may be performed after or during the injection of the resin, and the injection amount of the resin into the mold 10 can be arbitrarily set.

Then, the inclined member 61 driven by the hydraulic cylinder device 64 advances toward the inclined member 62 as shown in FIG. 11, and the internal gap G between the concave member 63A and the convex member 63B is enlarged. . As a result, the movable mold 10B is pressed toward the fixed mold 10A, and a predetermined compressive force is applied to the molten resin injected into the mold 10.

Here, a plurality of hydraulic cylinder devices 34 for driving the inclined members 61 are provided, each of which operates individually. However, the movement of the inclined members 61B and 61C is controlled by the interlocking plate 66. Synchronized with each other, the movement timing and movement distance are the same.

In addition, auxiliary inclined members 71 and 72 that come into surface contact in the same manner as the inclined members 61 and 62 are arranged at positions separated along the moving direction of the inclined member 61, and the auxiliary inclined member 71 is attached to the interlocking plate 66. Since it is fixed, the auxiliary inclined member 71 moves in conjunction with the inclined member 61, and presses the movable mold 10B via the auxiliary inclined member 72, and a plurality of pressed portions of the movable mold 10B are dispersed. Will be arranged.

Therefore, when moving the mobile 10B forward, the mobile 10B Without a polarization Yoruko to W plants, good pressing force of balance is added, mobile 1 0 B is fixed 1 ⁷ over the to advance while always maintaining an accurate parallel precision for 0A 0

As a result, the compressive force applied to the molten resin in the mold 10 is uniform without bias, and the resulting molded product is free from warpage or distortion, has good shape and dimensional accuracy, and has a fixed mold 1 Even if the inner structure of the movable mold 10A and the movable mold 10B are slidably fitted, the sliding parts of the two will not be worn and damaged.

With the pressure applied to the molten resin by the compression device 20, the molten resin is cooled and solidified for a predetermined time. When the predetermined time has elapsed and the molten resin has sufficiently solidified, the mold clamping device 5 is operated to move the moving die 4 back, and the hydraulic cylinder device 64 of the compression device 20 is operated, and the inclined member 61 and The auxiliary inclined member 71 is retracted, and the movable substrate 22 is retracted by the urging force of the tension spring 24. Thereby, a gap a between the movable mold 10B and the fixed mold 10 型 at the time of mold clamping is secured.

Next, the mold clamping device 5 is operated, the mold 10 is opened, and a molded product is taken out from the inside of the mold 10 to complete the molding. Thereafter, the above-described injection compression molding operation is repeated as necessary.

According to the above-described embodiment, the following effects can be obtained. That is, the auxiliary inclined portions 71 and 72 are arranged at positions separated from the inclined members 61 and 62 along the moving direction of the inclined member 61, and the auxiliary inclined member 71 is engaged with the inclined member 61. Since the auxiliary inclined member 71 is moved in conjunction with the inclined member 61 by being fixed to the plate 66, a plurality of pressed locations of the movable mold 10B are dispersed and arranged. , 62 are located at a position deviated with respect to the movable type 10B, but when moving the movable type 10B forward, the movable type 10B is balanced without being biased to one place. A good pressing force is applied, and the movable mold 10B can be advanced while maintaining the parallel state with the fixed mold 10A.

Therefore, even if the position of the inclined members 61 and 62 is deviated with respect to the movable mold 10B, the movable mold 10B can be advanced while maintaining the parallel state with the fixed mold 10A. Even if the entirety 20 is made smaller and the inclined member 61 and the hydraulic cylinder device 64 for driving the inclined member 61 become larger than the compression device 20, no problem occurs. It can be downsized and can be easily mounted on the injection compression molding machine 1.

Further, since the compression device 20 is downsized, a small-sized injection compression molding machine can be employed when mounting the compression device 20.

In addition, since the compression device 20 is small, it is possible to press a part of the movable die such as the movable core.

Furthermore, the compression device 20 applies a well-balanced pressing force to the movable mold 10B, and when moving the movable mold 10B forward, the parallel state between the fixed mold 10A and the movable mold 10B is maintained. Uniformity of the applied compressive force is ensured, there is no warpage or distortion, molded products with excellent shape and dimensional accuracy can be manufactured, and the fixed type 10A and the movable type 10B are slidably fitted with an in-row structure. Even in this case, it is possible to suppress wear damage of the sliding parts of each other.

FIG. 12 shows a fifth embodiment of the present invention. In the present embodiment, the inclined members 61B and 61C that are movable in the same direction in the fourth embodiment are replaced with inclined members 61D and 61E that are movable in opposite directions. is there.

That is, the concave member 63A is provided with two concave portions 68A and 68B, and the interlocking plates 66A and 66B are provided inside the concave portions 68A and 68B, respectively. The interlocking plates 66A and 66B have the same auxiliary inclined portion 71 as the interlocking plate 66 described above. The interlocking plate 66A engages with the inclined member 61D and moves in conjunction with the inclined member 61D. On the other hand, in the interlocking plate 66B, the inclined member 61E is engaged with the inclined member 61E, and moves in conjunction with the inclined member 61E.

Here, as shown in FIG. 13 (a partial cutaway view on the back side of FIG. 10), the inclined member 61D and the inclined member 61E whose moving directions are opposite to each other, as shown in FIG. Are engaged with each other via a link member 81

Specifically, the bottom 82 of the concave member 63A is provided with a long hole 83 extending along the moving direction of the inclined members 61D and 61E, and a concave portion 84 for accommodating the link member 81. Have been.

The link member 81 has a central portion pivotally supported by the concave member 63A, and is rotatable within a predetermined angle range inside the concave portion 84. Each of the two ends of the link member 81 is provided with an engaging portion 85 formed of a long hole extending in the radial direction of the rotation center axis.

Each of the inclined member 61D and the inclined member 61E is provided with a bar-shaped engaging projection 86D, 86E extending toward the bottom 82 of the concave member 63A. The engagement protrusions 86D and 86E reach the engagement portion 85 of the link member 81 through the elongated holes 83 of the concave member 63A, and are engaged with the engagement portion 85.

Due to the link member 81, the operations of the inclined member 61D and the inclined member 61E are synchronized with each other, so that the movement timing and the movement distance are the same.

Although not shown, the convex member 63B includes the inclined members 61D and 61E provided on the concave member 63A side and the inclined members 61 at positions corresponding to the auxiliary inclined portions 71. Inclined members 62D, 62E, 72 having inclined surfaces corresponding to D, 61E, 71 Is provided.

In this embodiment, the same operation and effect as those of the fourth embodiment can be obtained, and the following effect can be added.

That is, when the movable mold 10B is advanced by the movement of the inclined members 61D and 61E, a force in a direction orthogonal to the advance direction is applied to the movable mold 10B. Since the inclined members 61D and 61E move in the opposite directions to each other, the distance becomes significantly smaller than when the inclined members are moved in the same direction.

For this reason, rigidity required for the guide bar 23 and the like that slidably supports the fixed substrate 21 provided with the convex member 63B of the compression device 20 is reduced, and the members constituting the guide bar 23 and the like are reduced in weight. This makes it possible to further reduce the weight of the compression device 20.

FIG. 14 shows a sixth embodiment of the present invention. In the present embodiment, the compression device 20 having a plurality of inclined members 61 in the fourth and fifth embodiments is replaced with a compression device 20A having a single inclined member 61. That is, the compression device 20A is provided with one inclined member 61, one hydraulic cylinder device 64, and one interlocking plate 66C.

Among them, the inclined member 61 is disposed substantially at the center of the interlocking plate 66C. Further, auxiliary inclined members 71 are provided at the four corners of the interlocking plate 66C.

In this embodiment as well, the same operation and effect as those of the first and second embodiments can be obtained. In addition, even with a single inclined member 61, a well-balanced pressing force can be applied to the movable mold 10B. When moving the movable type 10B forward, the parallel state of the fixed type 10A and the movable type 10B is maintained, so that the effect of further reducing the size of the compression device 20A is added. it can.

Although the fourth to sixth embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various improvements and design changes may be made without departing from the gist of the present invention. This is possible as described above, and the above-described aspect can be adopted in the fourth to sixth embodiments. Example

Next, effects of the present invention will be described based on specific examples.

[Example]

This example is an experiment in which molding is performed using an injection compression molding machine and a molding procedure based on the second embodiment.

[Comparative example]

This comparative example is an experiment in which molding is performed in the same procedure as in the above-described embodiment, using a compression device of the injection compression molding machine of the above-described embodiment, from which the link member 41 is omitted.

[Common molding conditions]

In the above Examples and Comparative Examples, molding was performed using the following common materials, molds, devices, and molding conditions.

(1) Material: Polypropylene (Melt index = 42 g 0 min; measured at 230 ° C, 2.16 kgf, Idemitsu Petrochemical Co., Ltd. I DEM I TSU PP J-3050HP)

(2) Die: component test type; length 1800mm x width 900IM x height 60 concealed, average meat ^ ■ 4 mm

(3) Injection compression molding machine: J2200 manufactured by Japan Steel Works (tie bar spacing: 1800 mm width x 1600 mm height) Use an injection molding machine equipped with a compression device. (4) Molding conditions

①Molding temperature 230 ° C (injection cylinder temperature)

② Mold temperature 40. C

③ Injection pressure 80 kgZ square cm (gage hydraulic)

④ Injection speed 60% (Set value for maximum speed

⑤Resin filling time 7.5 seconds

⑥ 7 seconds after the start of compression (from the start of injection)

⑦ Compression allowance (dimension a in Figure 1) 2 mm

⑧Cooling time 60 seconds

⑨Compression force 150 t (hold constant until cooling is completed

〔Experimental result〕

In the example, a molded product with little warpage or deformation and having a substantially uniform thickness (within a thickness difference of ± 0.05 mm or less) could be obtained.

In the comparative example, when the compression device is operated, the inclined members 31 having different moving directions are not interlocked with each other, so that the operation of the inclined members 31 is shifted in time, and the parallel accuracy of the movable type with respect to the fixed type is reduced. It was not maintained and the compression force applied to the molten resin in the mold was biased. As a result, the wall thickness became uneven (the difference in wall thickness was about 0.4 mm), and it was not possible to obtain a molded product with a uniform wall thickness.

The above-described experiment was attempted with a compression device using a synchronization member as disclosed in Japanese Patent Application Laid-Open No. 7-164500. However, at the design stage, the compression device was installed in the injection compression molding machine. It turns out to be a size that can not be installed As a result, a comparative experiment could not be performed. Industrial applicability

As described above, according to the present invention, uniformity of the compressive force to the molten resin can be ensured, and the overall size can be easily reduced, and the compression device can be easily mounted on the molding machine. .

Further, according to the method invention of the present invention using the injection compression molding machine of the present invention, the molten resin injected into the mold is compressed by the above-described molding compression device, so that the size of the molded product is limited. Even when the molding is large, uniformity of the compressive force is secured, and a molded product excellent in shape and dimensional accuracy can be manufactured.

Claims

Scope of demand

1. By moving the movable mold toward the fixed mold of the mold filled with the molten resin, the movable mold of the molding machine for molding the molten resin while applying a compressive force to the molten resin is applied. Placed behind,

A first and a second inclined portion having an inclined surface inclined with respect to the forward direction of the movable die, wherein the first and second inclined portions are arranged along the forward direction of the movable die; The inclined surfaces of the first and second inclined portions are in surface contact with each other, and the first and second inclined portions are relatively moved in a direction perpendicular to the forward direction of the movable mold, whereby the movement is performed. A molding compression device that generates a pressing force for pressing a mold toward the fixed mold,

A plurality of the first and second inclined portions having the same moving direction in a plane orthogonal to the forward direction of the movable die are provided, and at least one of the first and second inclined portions is provided. A molding compression device, which is engaged with a single interlocking plate movably provided in the same direction as the direction of movement of the inclined portion.

2. The molding compression apparatus according to claim 1, wherein the interlocking plate is a flat rigid body having a long hole extending along a moving direction of the inclined portion, and an inside of the long hole. A molding compression device, wherein a driving means for driving the inclined portion is provided.

3. The molding compression device according to claim 1 or 2, wherein the first and second inclined portions have different moving directions in a plane orthogonal to a moving direction of the movable die. At least one of the first and second inclined portions is engaged with one or more interlocking plates provided so as to be movable in the same direction as the direction of movement of the inclined portions. And A molding compression device characterized in that components having different moving directions are engaged with each other via a synchronization mechanism.

4. The molding compression device according to claim 3, wherein the synchronization mechanism includes a link whose center portion is pivotally supported and whose end portion engages with the inclined portion. Compression device.

5. The molding compression apparatus according to claim 1 or 2, wherein the interlocking plate includes one of a first and a second auxiliary inclined portion corresponding to the first and the second inclined portions. Is fixed,

These first and second auxiliary inclined portions have inclined surfaces inclined in the forward direction of the movable die, and are arranged along the forward direction of the movable die. A molding compression device characterized in that the surfaces are in surface contact.

6. The molding compression device according to claim 3, wherein one of first and second auxiliary inclined portions corresponding to the first and second inclined portions is fixed to the interlocking plate,

7. The molding compression apparatus according to claim 1, wherein the first and second inclined portions are provided singly in a plane orthogonal to a forward direction of the movable die, and the first and second inclined portions are provided. At least one of the inclined portions engages with a single interlocking plate movably provided in the same direction as the moving direction of the inclined portion,

The interlocking plate includes a position corresponding to the first and second inclined portions at a position separated from the first and second inclined portions along the moving direction. One of the first and second auxiliary ramps is fixed,

8. The molding compression device according to claim 7, wherein the interlocking plate is a flat plate-shaped rigid body having an elongated hole extending along a moving direction of the inclined portion, and an inside of the elongated hole. A molding compression device, wherein a driving means for driving the inclined portion is provided.

9. The molding compression device according to claim 1 or 2, wherein the interlocking plate includes the first and second inclined portions at positions separated from the first and second inclined portions along the moving direction. One of the first and second auxiliary slopes corresponding to the first and second slopes is fixed,

10. The molding compression device according to claim 3, wherein the interlocking plate includes the first and second movable members at positions separated from the first and second inclined portions along the moving direction. One of the first and second auxiliary ramps corresponding to the ramp is fixed,

11. The molding compression apparatus according to claim 10, wherein the synchronization mechanism is provided. A compression device for molding, characterized in that a center portion is pivotally supported, and an end portion has a link engaged with the inclined portion.

12. An injection compression molding machine for molding a molten resin by applying a compressive force to the molten resin by advancing a movable mold toward a fixed mold of a mold into which the molten resin is injected,

A first and a second inclined portion having an inclined surface inclined with respect to the forward direction of the movable die, wherein the first and second inclined portions are arranged along the forward direction of the movable die; The inclined surfaces of the first and second inclined portions are in surface contact with each other, and the first and second inclined portions are relatively moved in a direction perpendicular to the forward direction of the movable mold, whereby the movement is performed. A molding compression device that generates a pressing force for pressing the mold toward the fixed mold,

A plurality of the first and second inclined portions having the same moving direction in a plane orthogonal to the forward direction of the movable die are provided, and at least one of the first and second inclined portions is provided. Engages with a single interlocking plate movably provided in the same direction as the moving direction of the inclined portion,

An injection compression molding machine characterized in that molten resin injected into the mold can be compressed by pressing the movable mold toward the fixed mold with the molding compression device.

13. The injection compression molding machine according to claim 12, wherein the first and second inclined portions each have a plurality of members having different moving directions in a plane orthogonal to the moving direction of the movable die. At least one of the first and second inclined portions is engaged with one or a plurality of interlocking plates movably provided in the same direction as the moving direction of the inclined portions. An injection compression molding machine, characterized in that components having different directions are engaged with each other via a synchronization mechanism.

14. The injection compression molding machine according to claim 12 or 13, wherein the molten resin is injected into the mold while the mold is closed while leaving the moving distance of the movable mold. In order to apply a compressive force to the injected molten resin, the molding compression device is configured to press the movable mold toward the fixed mold. .

15. The injection compression molding machine according to claim 12, wherein the first and second inclined portions are provided singly in a plane orthogonal to the advance direction, and the first and second inclined portions are provided. At least one of the inclined portions is engaged with an interlocking plate movably provided in the same direction as the moving direction of the incline portion, and the interlocking plate includes the first and second interlocking plates. One of the first and second auxiliary inclined portions corresponding to the first and second inclined portions is fixed at a position separated from the inclined portion along the moving direction,

These first and second auxiliary inclined portions have inclined surfaces inclined with respect to the forward direction of the movable die, and are arranged along the forward direction, and the mutually inclined surfaces are in surface contact with each other. And

An injection compression molding machine characterized in that molten resin injected into the mold can be compressed by pressing the movable mold toward the fixed mold with the molding compression device. .

16. The injection compression molding machine according to claim 15, wherein the molten resin is injected into the mold while the mold is closed while leaving the moving distance of the movable mold. An injection compression molding machine, wherein the molding compression device is configured to press the movable mold toward the fixed mold in order to apply a compressive force to the melted resin.

17. The first and second slopes having inclined surfaces inclined with respect to the advance direction of the movable mold that advances toward the fixed mold of the mold into which the molten resin is injected. The first and second inclined portions are arranged along the forward direction of the movable die, and the inclined surfaces of the first and second inclined portions are in surface contact with each other, A molding compression device that generates a pressing force for pressing the movable mold toward the fixed mold by relatively moving the first and second inclined portions in a direction orthogonal to the moving direction of the movable mold. And a plurality of the first and second inclined portions of the molding compression device, each having the same moving direction in a plane orthogonal to the moving direction of the movable die, are provided. At least one of the first and second inclined portions is formed by an injection compression molding machine using an injection compression molding machine engaged with a single interlocking plate movably provided in the same direction as the moving direction of the inclined portions. The molding method め

After injecting the molten resin into the mold, the molding compression device is operated to press the movable mold toward the fixed mold, thereby compressing the molten resin injected into the mold. Injection compression molding method.

18. The injection compression molding method according to claim 17, wherein the first and second inclined portions each include a plurality of members each having a different moving direction in a plane orthogonal to a moving direction of the movable die. At least one of the first and second inclined portions is engaged with one or more interlocking plates movably provided in the same direction as the moving direction of the inclined portions, and the moving direction is An injection compression molding method characterized by using an injection compression molding machine in which different components are engaged with each other via a synchronization mechanism.

19. The injection compression molding method according to claim 17 or 18, wherein after injecting the molten resin into the mold, the mold is closed while leaving the moving distance of the movable mold. The compression force is applied to the injected molten resin Injection compression molding, characterized in that the molding compression device presses the movable mold toward the fixed mold to completely close the mold.

20. The injection compression molding method according to claim 17, wherein the first and second inclined portions of the molding compression device are provided singly in a plane orthogonal to the advance direction. At least one of the first and second inclined portions engages with an interlocking plate movably provided in the same direction as the direction of movement of the incline, and the interlocking plate includes the first plate. And one of first and second auxiliary inclined portions corresponding to the first and second inclined portions is fixed at a position separated from the second inclined portion along the moving direction,

These first and second auxiliary inclined portions have inclined surfaces inclined with respect to the forward direction of the movable die, and are arranged along the forward direction, and the mutually inclined surfaces are in surface contact with each other. Injection compression molding method using an injection compression molding machine,

After injecting the molten resin into the mold, by operating the compression device for molding and pressing the movable mold toward the fixed mold, the molten resin injected into the mold is reduced. An injection compression molding method characterized by compression.

21. The injection compression molding method according to claim 20, wherein the molten resin is injected into the mold while the mold is closed while leaving the moving distance of the movable mold. Injection compression molding method characterized in that the molding compression device presses the movable mold toward the fixed mold and completely closes the mold in order to apply a compressive force to the melted resin. .