JP2018126983A - Movable platen support mechanism of injection molding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate assembling and prevent a load from being applied onto a linear guide rail even when a movable platen thermally expands.SOLUTION: In a movable platen support mechanism of an injection molding machine, a support member 6 provided on a side surface 3a of a movable platen 3 is enabled to run along a linear guide rail 9. A shaft 12 is fit to a side surface of the movable platen 3 from the support member 6 and a fixing bolt 13 is screwed and fixed to a screw hole 3c of the movable platen 3 through a penetrated hole 6b of the support member 6. A disc spring 14 is equipped between the support member 6 and the movable platen 3 via the shaft 12 to absorb the thermal expansion of the movable platen 3. A diameter of a part of the penetrated hole 6b of the support member 6 is expanded to form a gap 17 between the support member and the shaft 12. A cylindrical bush 18 is equipped in the gap 17 to allow the shaft 12 to be capable of extending outwards together with the bush 18 by the thermal expansion of the movable platen 3.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a movable plate support mechanism of an injection molding machine that allows a movable plate to travel along a linear guide.

Conventionally, in an injection molding machine, when a fixed mold and a movable mold are clamped, a movable plate supporting a movable mold is moved along a linear guide rail via a support member. Yes.
On the other hand, when injecting high-temperature molten resin into a fixed mold and a movable mold in which the mold is closed, if the mold is set at room temperature, the resin is solidified immediately after injection and does not flow through the mold. Therefore, it is necessary to adjust the temperature of the mold to a high temperature so that the molten resin flows and fills. Then, the movable plate of the movable mold is thermally expanded and deformed in the width direction. Therefore, the support member is pushed and a load is applied in a direction perpendicular to the longitudinal direction of the linear guide rail, so that it is easily deformed. Will be adversely affected.

As a means for improving such a problem, for example, a movable platen support mechanism described in Patent Document 1 has been proposed.
In the injection molding machine described in Patent Document 1, a support member is installed as a mounting block that can run on a linear guide rail on the side surface of a movable platen (movable platen), and mounting bolts are inserted through through holes formed in the support member. It is fixed by screwing into the screw hole on the side of the movable platen. In addition, a spring element is attached to the mounting bolt in a compressed state between the support member and the side surface of the movable platen. An adjustment bolt is inserted into the support member adjacent to the mounting bolt and screwed into the movable platen, and a load is applied to narrow or widen the gap between the support member and the movable platen.
This prevents a load from being applied to the linear guide rail when the movable platen is thermally expanded, and the parallelism of the movable platen with respect to the fixed platen can be adjusted.

Japanese Patent No. 4676548

  However, the above-described injection molding machine disclosed in Patent Document 1 is complicated because it is necessary to adjust the positions of the movable platen and the support member during assembly. In addition, it is necessary to install an adjustment bolt separately from the mounting bolt to adjust the attitude of the movable mold with respect to the fixed mold. In this respect as well, there is a problem that assembly is complicated and troublesome.

  The present invention has been made in view of such circumstances, and supports the movable plate of an injection molding machine that is easy to assemble and suppresses the load on the linear guide rail even if the movable plate is thermally expanded. The purpose is to provide a mechanism.

The movable platen support mechanism of the injection molding machine according to the present invention comprises a fixed plate with a fixed die and a movable plate with a movable die attached, and a linear guide is installed below the support member attached to the side of the movable platen. In the injection molding machine that allows the movable plate to travel along the linear guide, a shaft fitted from the support member to the side surface of the movable plate, and the support member fixed to the movable plate through the shaft. A bolt and an elastic member mounted between the support member and the movable platen are provided.
According to the present invention, the positioning of the support member and the movable platen can be adjusted with high strength by fixing the shaft larger in diameter than the fixed bolt to the support member and the movable platen at the time of assembly, and the support can be fixed with the fixed bolt. Since the elastic member is mounted between the member and the movable platen, even if the movable plate is thermally expanded, it can be absorbed by the elastic member, and the load on the linear guide rail via the support member is suppressed.

Further, it is preferable that a gap is formed between the shaft and the support member or a sliding member is provided.
When the movable plate is deformed in the width direction due to thermal expansion, even if the load cannot be sufficiently absorbed by the elastic member, the gap between the support member and the support member indicates that the shaft extends or moves in the axial direction together with the fixing bolt. Since the sliding member attached to the gap portion allows the thermal expansion of the movable platen to be transmitted to the linear guide rail via the support member.

The movable plate support mechanism of the injection molding machine according to the present invention includes a fixed plate with a fixed die and a movable plate with a movable die attached, and a linear guide is provided below the support member attached to the side of the movable plate. In an injection molding machine that is installed and capable of running the movable plate along the linear guide, the shaft fitted from the support member to the side surface of the movable plate, and the support member is fixed to the movable plate through the shaft. The shaft is formed such that at least a part of the portion fitted in the support member is eccentric, and the reference shaft is mounted on the support member and the movable plate separately from the shaft and the fixing bolt. The support member is displaced in the direction intersecting the linear guide around the reference axis by the eccentric part by rotating.
When adjusting the vertical position of the movable mold, the support member is rotated about the reference axis by being pushed by the eccentric part by rotating the shaft, so the vertical position of the movable plate is adjusted. be able to.

Moreover, it is preferable that the eccentric part of the shaft is a large-diameter shaft portion formed on the opposite side of the movable plate of the support member.
The support member can be displaced by rotating the shaft, and the large-diameter shaft portion of the shaft is provided on the opposite side of the movable plate, so that when the movable plate is thermally expanded, the shaft is extended outward from the support member. The load can be released so that it is not transmitted to the support member.

The reference axis preferably has a separate shaft and a fixing bolt.
When the reference shaft is a separate shaft and fixing bolt, assembly is easy. In this case, the separate shaft and the fixing bolt are preferably attached coaxially.

  According to the movable plate support mechanism of the injection molding machine according to the present invention, the shaft is fitted to the support member and the movable plate and tightened with the fixing bolt. Positioning with the board is possible and the assembly strength is high, so that the labor of adjustment can be saved. In addition, since the elastic member is mounted between the support member and the movable platen, even if the movable plate is thermally expanded, it is absorbed by the elastic member and no load is applied to the linear guide rail, so that the lifetime can be prevented from being shortened.

It is a principal part perspective view which shows the movable board support mechanism of the injection molding machine by 1st embodiment of this invention. It is a side view of the support mechanism of the movable board shown in FIG. FIG. 3 is a longitudinal sectional view taken along line AA in FIG. 2. It is a side view which shows the movable board support mechanism of the injection molding machine by 2nd embodiment. FIG. 5 is an enlarged cross-sectional view of a shaft portion obtained by cutting a shaft and a head of a fixing bolt along a surface of a support member of the movable plate support mechanism shown in FIG. 4. It is a BB line longitudinal cross-sectional view of FIG. It is CC sectional view taken on the line of FIG. It is a side view which shows the movable board support mechanism of the injection molding machine by 3rd embodiment. It is the DD sectional view taken on the line of FIG.

Hereinafter, a movable platen support mechanism of an injection molding machine according to an embodiment of the present invention will be described with reference to the accompanying drawings.
First, the movable platen support mechanism 2 of the injection molding machine 1 according to the first embodiment will be described with reference to FIGS. 1 to 3.
In the injection molding machine 1 according to the present embodiment, for example, a mold clamping unit and an injection unit are provided on a base frame (not shown) as in the conventional technology described above. A movable mold 4 attached to the movable platen 3 shown in FIG. 1 is installed at a position facing the fixed die attached to the fixed platen in the mold clamping unit. A plurality of movable plates 3 and four tie bars 5 in FIG. 1 are arranged in parallel with the fixed plate, and the tie bars 5 pass through holes formed at four corners of the movable plate 3. The movable platen 3 is slidable along the tie bar 5.

1 and 2, the movable platen support mechanism 2 of the injection molding machine 1 is provided with, for example, block-like support members 6 on the side surfaces 3a on both sides in the width direction of the movable platen 3 (in the direction of arrow P in FIG. 1). The support member 6 is fixed to the side surface 3 a of the movable platen 3 by a pair of attachment members 7. A linear guide rail 9 is installed below each support member 6 so as to extend in a direction substantially parallel to the tie bar 5. A linear guide block 10 is fixed to the lower surface of the support member 6. The linear guide block 10 forms a rail receiving portion that is fitted to the linear guide rail 9 so as to run. The linear guide block 10 may be integrally formed with the support member 6.
Therefore, when the movable platen 3 to which the movable mold 4 is fixed by a drive source or a toggle mechanism (not shown) slides along the tie bar 5, the support members 6 provided on both side surfaces 3a of the movable platen 3 are linear guide rails 9. Drive along. The movable platen 3 runs smoothly without deformation, and the movable mold 4 is closed and opened with the fixed mold.

Next, the movable plate support mechanism 2 having a fixed structure between the support member 6 and the movable plate 3 will be described with reference to FIG.
As shown in FIG. 2, the support member 6 has a stepped block shape, and a pair of attachment members 7 are fixed to the stepped portion 6a side by side in the horizontal direction. In FIG. 3, the support member 6 has a through hole 6 b having a circular cross section in the thickness direction, and an abutting hole 3 b having the same inner diameter is also formed on the side surface 3 a of the movable platen 3. A screw hole 3c having a smaller diameter is formed on the tip surface of the abutting hole 3b, and a female screw is cut on the inner peripheral surface of the screw hole 3c.

A substantially cylindrical shaft 12 is fitted into the through hole 6b of the support member 6 and the abutting hole 3b of the movable platen 3 in an inlay structure, and the head portion 12a of the shaft 12 has a disk shape with an enlarged diameter. It is in contact with the surface of the support member 6. Moreover, an inner hole 12b that penetrates from the head 12a to the tip is formed in the shaft 12, and a fixing bolt 13 is inserted into the inner hole 12b.
The fixing bolt 13 has a male screw formed at the tip and is screwed into the screw hole 3 c of the movable platen 3. The head 13a of the fixing bolt 13 whose diameter is increased is in contact with the surface of the head 12a of the shaft 12, and for example, a hexagonal hole 13b is formed.

Therefore, the support member 6 and the movable platen 3 are positioned with each other by fitting the two shafts 12, and the tip of the fixing bolt 13 fitted into the inner hole 12 b of the shaft 12 is the abutting hole 3 b of the movable platen 3. It is fixed integrally by screwing. In this case, the shaft 12 and the fixing bolt 13 are preferably mounted coaxially, but the center axis may be shifted.
Further, in the gap K between the support member 6 and the movable platen 3, for example, a ring-shaped disc spring 14 is mounted on the outer peripheral surface of the shaft 12 as an elastic member in a compressed state. The elastic member is not limited to the disc spring 14, and various spring elements such as a coil spring and a leaf spring, or other elastic bodies can be employed.
Therefore, when the temperature of the movable mold 4 is adjusted to a high temperature at the time of injection molding, even if the movable platen 3 is thermally expanded in the width direction P by heat transfer, it can be absorbed by the disc spring 14.

Further, in the through hole 6b of the support member 6 that abuts the outer peripheral surface of the shaft 12, the region on the head 12a side of the shaft 12 has a slightly stepped and enlarged inner diameter, and has a predetermined length. A cylindrical gap portion 17 is formed. A bush 18 made of a metal such as copper is inserted into the gap 17. The bush 18 constitutes a slidable member that is highly slidable with respect to the through hole 6 b of the support member 6.
Moreover, since the shaft 12 also expands due to thermal expansion, the shaft portion protrudes outward with respect to the surface of the support member 6 together with the bush 18. Similarly, the fixing bolt 13 fitted to the shaft 12 is also thermally expanded and protrudes to the outside of the support member 6 integrally with the shaft 12.

Therefore, even if the movable platen 3 is thermally expanded and cannot be absorbed by the disc spring 14, the shaft 12 and the fixing bolt 13 extend to the outside of the support member 6 integrally with the movable platen 3. Therefore, the influence of the thermal expansion of the movable platen 3 is not transmitted to the support member 6, and it is possible to prevent the linear guide rail 9 from being loaded in a direction perpendicular to the longitudinal direction.
As the sliding member, a sliding member such as grease may be applied instead of inserting the bush 18 into the gap portion 17, or a structure in which a gap is left without applying grease or the like is adopted. Also good.

Next, a method for assembling the movable platen support mechanism 2 will be described with reference to FIG.
When the support member 6 is attached to the side surface 3 a of the movable platen 3, the bush 12 is fitted into the gap portion 17 in the through hole 6 b of the support member 6 and the shaft 12 is inserted into the inner surface thereof. Further, the tip end of the shaft 12 is inserted into the abutting hole 3 b of the side surface 3 a of the movable platen 3, and the head portion 12 a is brought into contact with the surface of the support member 6. In addition, the movable plate 3 and the support member 6 can be positioned with high accuracy by fitting the two shafts 12 through the two through holes 6 b provided horizontally in the stepped portion 6 a of the support member 6.
Then, the supporting member 6 can be fixed to the movable platen 3 by fitting the shaft portion of the fixing bolt 13 into the inner hole 12b of each shaft 12 and screwing it into the screw hole portion 3c from the abutting hole 3b of the movable platen 3. .

As described above, according to the movable plate support mechanism 2 of the injection molding machine 1 according to the present embodiment, the support member 6 installed on the linear guide rail 9 even if the movable plate 3 is thermally expanded in the width direction during injection molding. Can be absorbed by the disc spring 14 provided in the gap K.
Moreover, even if the shaft 12 and the fixing bolt 13 are thermally expanded due to the influence of the thermal expansion of the movable platen 3, the shaft 12 and the fixing bolt 13 extend outwardly with the bush 18 formed in the through hole 6b of the support member 6. Therefore, it can reduce that the support member 6 receives the load by thermal expansion. Therefore, it can suppress that a load acts on the linear guide rail 9 by the influence of the deformation | transformation by the thermal expansion of the movable board 3, and the lifetime is shortened.

Further, since the shaft 12 has an outer diameter larger than that of the fixed bolt 13, the fixing strength of the movable plate 3 and the support member 6 is higher than that of the conventional technique in which the movable plate 3 and the support member 6 are connected only by the bolt.
Furthermore, when assembling the movable plate support mechanism 2, the plurality of shafts 12 are fitted into the abutting holes 3 b of the side surface 3 a of the movable plate 3 through the through holes 6 b of the support member 6, so that the movable plate 3 and the support member 6 are assembled. Can be accurately positioned.

  The movable platen support mechanism 2 of the injection molding machine 1 according to the present invention is not limited to that according to the above-described embodiment, and can be appropriately changed or replaced without departing from the gist of the present invention. . Although other embodiments and modifications of the present invention will be described below, the same or similar members and parts as those of the injection molding machine 1 according to the above-described embodiment will be described using the same reference numerals.

4 to 7 show the movable platen support mechanism 2A of the injection molding machine 1 according to the second embodiment of the present invention.
The movable platen support mechanism 2A according to the second embodiment is roughly the same as the movable platen support mechanism 2 according to the first embodiment, and the mounting configuration of the pair of mounting members 20A and 20B of the support member 6 is the first. It is different from the mounting member 7 of the embodiment. As shown in FIGS. 4 and 5, the mounting members 20 </ b> A and 20 </ b> B according to the present embodiment are installed, for example, horizontally on the stepped portion 6 a of the support member 6.

In one mounting member 20A, as shown in FIG. 6, the through-hole 6c formed in the support member 6 is formed of a diameter-expanded hole portion 21a and a diameter-reduced hole portion 21b, and is movable facing the diameter-reduced hole portion 21b. An abutting hole 3 b is formed in the side surface 3 a of the board 3. The diameter-reduced hole portion 21b may have the same inner diameter as the abutting hole 3b, but in FIG. 6, the diameter-reduced hole portion 21b is formed to have a slightly larger diameter so as to allow the support member 6 to rotate. The enlarged-diameter hole 21a and the reduced-diameter hole 21b are formed coaxially, and its central axis is O.
In addition, the gap part 17 and the bush 18 which are mentioned later may be installed in the enlarged diameter hole part 21a.

The shaft 22 has a head portion 22a having, for example, a hexagonal plate shape or a two-sided width, and an inner hole 22b penetrating from the head portion 22a to the tip portion is formed therein. The shaft portion of the shaft 22 is formed by a large diameter shaft portion 22c that fits in the enlarged diameter hole portion 21a and a small diameter shaft portion 22d that fits in the reduced diameter hole portion 21b. Is fitted into the abutting hole 3b. The large diameter shaft portion 22c and the small diameter shaft portion 22d are formed coaxially.
A fixing bolt 13 is fitted into the inner hole 22b formed in the shaft 22, and the male screw portion at the tip thereof is screwed and fixed to the female screw portion of the screw hole portion 3c extending from the abutting hole 3b of the movable plate 3. ing. The shaft 22 and the fixing bolt 13 are set coaxially with the central axis O of the through hole 6c of the support member 6 (see FIGS. 5 and 6).

  Further, the other mounting member 20B shown in FIG. 7 has substantially the same configuration as the one mounting member 20B. As a difference, the through hole 6d of the support member 6 has a diameter-reduced hole 24a having a circular cross section having a central axis O1 that is eccentric by a distance d with respect to the central axis O, and a reduced diameter having a circular cross section having the central axis O as a center line. It forms with the hole part 24b (refer FIG. 5).

The shaft 25 inserted into the through-hole 6d has a hexagonal plate-shaped head portion 25a and a shaft portion thereof, and an inner hole 25b penetrating from the head portion 25a to the tip portion is formed therein. The shaft portion of the shaft 25 is formed by a large-diameter shaft portion 25c having a circular cross section that fits into the enlarged diameter hole portion 24a and a small-diameter shaft portion 25d having a circular cross section that fits in the reduced diameter hole portion 24b. The front end is fitted in the abutting hole 3 b of the movable platen 3.
In addition, the head portion 25a and the small diameter shaft portion 25d have a cylindrical shape having a central axis O. The large diameter shaft portion 25c has a cylindrical shape having a central axis O1 whose outer peripheral surface is eccentric by a distance d with respect to the small diameter shaft portion 25d. have. A predetermined gap is formed between the reduced diameter hole portion 24 b of the through hole 6 d and the small diameter shaft portion 25 d of the shaft 25.

The inner hole 25b of the shaft 25 is formed around the central axis O, and the fixing bolt 13 is fitted therein. The fixing bolt 13 is fixed by screwing a male screw portion at a tip portion thereof into a female screw portion of a screw hole portion 3c extending from the butting hole 3b of the movable platen 3 (see FIGS. 5 and 7).
In the mounting member 20B, the small-diameter shaft portion 25d of the shaft 25 is fitted into the abutting hole 3b of the movable platen 3, and the fixing bolt 13 along the central axis O of the small-diameter shaft portion 25d is screwed into the screw hole portion 3c. . Therefore, when the shaft 25 is rotated about the central axis O with respect to the mounting member 20B, the large-diameter shaft portion 25c rotates eccentrically, so that the support member 6 rotates slightly in the vertical direction around the one mounting member 20A. The position of the support member 6 can be adjusted in the vertical direction. At that time, the small-diameter shaft portion 25d allows the support member 6 to be slightly rotated by the gap between the small-diameter shaft portion 24b.

  As in the first embodiment, in the through holes 6c and 6d of the support member 6 that contacts the outer peripheral surfaces of the shafts 22 and 25, the diameter-enlarged hole portion 21a in the region on the heads 22a and 25a side of the shafts 22 and 25. , 24a is an enlarged inner diameter, and a substantially cylindrical gap portion 17 is formed over a predetermined length. A cylindrical bush 18 is fitted into the gap portion 17. Alternatively, a sliding member such as grease may be applied to the gap portion 17 without providing the bush 18, or only the gap portion 17 may be formed without applying grease.

  Therefore, when the movable platen 3 is thermally expanded, when the heat is transferred to the shafts 22 and 25 and the fixing bolts 13 and 13, the shafts 22 and 25 are expanded on the heads 22 a and 25 a side by the thermal expansion, and the surface of the support member 6. Projecting outwards. Similarly, the fixing bolt 13 protrudes outside the support member 6 together with the shafts 22 and 25. Thereby, it is possible to suppress the thermal expansion of the movable platen 3 from being transmitted to the support member 6 even in the movable platen support mechanism 2A according to the second embodiment.

  As described above, according to the movable platen support mechanism 2A according to the second embodiment, the load due to the thermal expansion of the movable platen 3 can be prevented from being applied to the linear guide rail 9, and the large diameter of the shaft 25 in the mounting member 20B can be prevented. Since the shaft portion 25c is decentered by the distance d together with the enlarged diameter hole portion 24a of the through hole 6d, the position of the support member 6 can be adjusted in the vertical direction by rotating the head portion 25a of the shaft 25 about the central axis O. Therefore, it can be adjusted corresponding to the vertical thermal deformation of the movable platen 3.

Next, the movable platen support mechanism 2B of the injection molding machine 1 according to the third embodiment of the present invention will be described with reference to FIGS.
The movable plate support mechanism 2B according to the third embodiment has the same general configuration as the movable plate support mechanism 2 according to the first embodiment. As a difference, for example, a plate-like reinforcing member 28 protruding from the movable platen 3 is provided on the upper surface side of the support member 6 in order to reinforce the shaft 12. In addition, for example, a plate-like sliding member 29 that can slide relatively is mounted between the reinforcing member 28 and the upper surface of the supporting member 6.
As a result, the load on the support member 6 and the shaft 12 can be received by the reinforcing member 28 via the sliding member 29 when the movable platen 3 is traveling, and the sliding member 29 can be slid. I can escape. Therefore, it is possible to prevent an excessive load from being applied to the shaft 12.

  The mounting configuration of the pair of mounting members 20A and 20B of the support member 6 is different from the mounting member 7 of the first embodiment. As shown in FIGS. 4 and 5, the mounting members 20 </ b> A and 20 </ b> B according to the present embodiment are installed, for example, horizontally on the stepped portion 6 a of the support member 6.

  In the movable plate support mechanism 2 according to the first embodiment described above, the two attachment members 7 are installed on the support member 6. However, the number of installation members 7 is arbitrary, and may be one, or three or more. But you can. For example, in the third embodiment, three attachment members 7 are installed.

In the movable platen support mechanism 2A according to the second embodiment, the two attachment members 20A and 20B may not be installed in parallel in the horizontal direction and may be shifted in the vertical direction. Further, in the shaft 25, the large diameter shaft portion 25c of the support member 6 and the diameter expansion hole portion 24a, the eccentric direction is not limited to the upward direction and can be formed in an appropriate direction.
Further, in the mounting member 20B, the enlarged diameter hole portion 24a of the support member 6 and the large diameter shaft portion 25c of the shaft 25 may be formed in a substantially elliptical cross section instead of a cylindrical shape. Even in this case, the vertical position of the support member 6 can be adjusted by rotating the head 25a of the shaft 25 with a spanner or the like.
One mounting member 20 </ b> A is a mounting member separate from the other mounting member 20 </ b> B that can displace the support member 6 in a direction intersecting the longitudinal direction of the linear guide rail 9, and is included in the reference shaft.

1 Injection molding machine 2, 2A Movable platen support mechanism
3 Movable platen 3b Abutting hole 3c Screw hole 4 Movable mold 5 Tie bar 6 Support members 6b, 6c, 6d Through holes 7, 20A, 20B Mounting member 9 Linear guide rails 12, 22, 25 Shafts 12a, 22a, 25a Head Parts 12b, 22b, 25b Inner hole 13 Fixing bolt 17 Gap part 18 Bushing 21a, 24a Expanded hole part 21b, 24b Reduced diameter hole part 22c, 25c Large diameter shaft part 22d, 25d Small diameter shaft part 28 Reinforcement member 29 Sliding member

Claims (5)

A fixed plate with a fixed mold and a movable plate with a movable mold are provided, and a linear guide is installed below the support member attached to the side of the movable plate, and the movable plate is moved along the linear guide. In an injection molding machine that can run,
A shaft fitted to the side surface of the movable plate from the support member;
A fixing bolt that penetrates the shaft and fixes the support member to the movable plate;
A movable plate support mechanism for an injection molding machine, comprising: an elastic member mounted between the support member and the movable plate.   The movable platen support mechanism for an injection molding machine according to claim 1, wherein a gap is formed between the shaft and the support member, or a sliding member is provided. A fixed plate with a fixed mold and a movable plate with a movable mold are provided, and a linear guide is installed below a support member attached to the side of the movable plate, and the movable plate is moved along the linear guide. In an injection molding machine that can run
A shaft fitted from the support member to the side surface of the movable platen, and a fixing bolt that penetrates the shaft and fixes the support member to the movable platen,
The shaft is formed with an eccentric portion in the portion inserted into the support member,
Separately from the shaft and the fixing bolt, a reference shaft is mounted on the support member and the movable platen,
A movable plate support mechanism of an injection molding machine, wherein the support member is displaced in a direction intersecting the linear guide around the reference axis by the eccentric portion by rotating the shaft.   The movable plate support mechanism for an injection molding machine according to claim 3, wherein the eccentric portion of the shaft is a large-diameter shaft portion formed on the opposite side of the support plate to the movable plate.   The movable platen support mechanism of an injection molding machine according to claim 3 or 4, wherein the reference shaft has a separate shaft and a fixing bolt.

Images