JP7614697B2 - Mold Equipment - Google Patents

Description

This disclosure relates to a mold apparatus having an upper mold and a lower mold that are divided in the vertical direction.

Conventionally, foam molding dies have been made using a mold device that has an upper mold and a lower mold that are divided vertically, and the upper mold is closed onto the lower mold from above, and then a foaming material is foamed in the internal space formed by the two molds to produce a molded product.

In this type of mold device, the process of closing the upper mold onto the lower mold from above tends to cause burrs to form at the boundary between the upper and lower molds in the molded product, so various techniques have been proposed to prevent such burrs from forming. For example, one technique is to clamp the ends of the structure that closes the upper and lower molds with a clamping mechanism to prevent any unnecessary gaps from forming between them, thereby preventing burrs from forming at the boundary between the upper and lower molds in the molded product (see Patent Document 1).

Publication number 3-15286

However, the above-mentioned technology clamps the ends of the structure formed by closing the upper and lower dies individually with a clamping mechanism to close the dies, and it is not possible to clamp the upper and lower dies at multiple points simultaneously. This means that the clamping process takes time. Furthermore, if the clamping process cannot be completed in time and there are areas that are not clamped, there is a concern that burrs will occur in those areas.

Even if clamping mechanisms are installed in multiple locations to clamp the entire boundary between the upper and lower dies, clamping operations are difficult with clamping mechanisms that are far from the worker.

The present disclosure has been made to solve these problems, and its purpose is to provide a technology that makes it easy to achieve high-precision clamping of an upper mold and a lower mold in a mold device having upper and lower molds that are vertically divided.

The mold device according to the present disclosure includes a mold body having an upper mold and a lower mold divided in the vertical direction and extending in both the front-rear and left-right directions, a lower frame supporting the mold body from below with a structure extending in the front-rear direction, an upper frame sandwiching and holding the mold body between the lower frame and the mold body from above with a structure extending in the front-rear direction, a hinge portion provided on either the front or rear end of the lower frame and the upper frame, which rotatably fixes the upper frame to the lower frame around an axis extending in the left-right direction at this end, and a hinge portion provided at a position sandwiching either one of the upper mold and the lower mold from the front or rear end face or the left or right end face. The link mechanism has a pair of displacement parts that are positioned on the upper and lower dies and can be displaced between a pressing position where the upper and lower dies are pressed and a release position where the upper and lower dies are separated from at least the other die and the pressure is released, and a pair of individual links connected to each of the displacement parts, and the individual links and the displacement parts are interlocked to displace the displacement parts to either the pressing position or the release position, and the link mechanism has a synchronous link connected to both of the pair of individual links, and the synchronous link and each of the individual links are interlocked to displace the displacement parts connected to each of the individual links to the same position, either the pressing position or the release position.

According to the present disclosure, when one of the individual links displaces the corresponding displacement part to a pressing position, the other individual links are linked via a synchronous link to displace the corresponding displacement part to a pressing position, whereby the pair of displacement parts sandwich the opposing ends of the mold body, and the upper and lower dies are pressed at each end to clamp the dies. As a result, it becomes possible to easily achieve high-precision clamping of the upper and lower dies.

FIG. 1 is a side view of a mold assembly according to an embodiment of the present disclosure. FIG. 1 is a front view of a mold device according to an embodiment of the present disclosure. FIG. 4 is a four-sided view of a mold body and a link mechanism according to an embodiment of the present disclosure. FIG. 1 is a cross-sectional view of a mold body according to an embodiment of the present disclosure. FIG. 11 is a side view showing a state in which a displacement portion is displaced in the embodiment of the present disclosure. FIG. 1 is a plan view of a mold device according to an embodiment of the present disclosure. FIG. 1 is a side view of a mold assembly according to an embodiment of the present disclosure. 1A and 1B are plan and side views of a mold apparatus according to an embodiment of the present disclosure; 1A and 1B are plan and front views of a mold device according to an embodiment of the present disclosure;

Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings.
1 and 2, the mold device 1 includes a mold body 10, a lower frame 20, an upper frame 30, a hinge portion 40, a pair of displacement portions 50, a link mechanism 60, a holding portion 70, a transmission arm 80, and an opening/closing arm 90. Note that in this embodiment, an example is shown that is used as a foam molding mold in which a foaming material is foamed in the internal space of the mold body 10 to produce a molded product.

As shown in FIG. 3, the mold body 10 has an upper mold 11 and a lower mold 13 that are divided in the vertical direction, and is a structure that extends in both the front-rear and left-right directions. As shown in FIG. 4, the mold mating surface 15 between the upper mold 11 and the lower mold 13 is formed so as to slope downward toward the cavity 17, which is the internal space of the mold body 10.

The lower frame 20 is a structure that extends in the front-rear direction, and has a set of front-rear structures 21 that each extend in the front-rear direction, and a set of left-right structures 23 that connect the front-rear structures 21 in the left-right direction at the front and rear end sides, respectively, and supports the mold body 10 from below.

The upper frame 30 is a structure that extends in the front-rear direction and has a set of front-rear structures 31 that each extend in the front-rear direction, and a set of left-right structures 33 that connect the front-rear structures 31 in the left-right direction at the front and rear end sides, respectively, and these structures hold the upper mold 11.

The hinge portion 40 is provided on the rear end side of each of the lower frame 20 and the upper frame 30, and fixes the upper frame 30 to the lower frame 20 so that it can rotate around an axis that extends in the left-right direction at the rear end side.

The hinge section 40 is configured so that the shaft 41 for rotating the upper frame 30 relative to the lower frame 20 and the hole 43 through which the shaft 41 passes are fitted together with a "clearance fit". Here, the "clearance fit" is achieved by making the inner diameter of the hole 43 larger than the outer diameter of the shaft 41 by a predetermined value. This "predetermined value" is set on the assumption that the upper die 11 will shift in the front-rear and left-right directions in the process of fitting the upper die 11 to the lower die 13, so that the upper die 11 can be displaced in the front-rear and left-right directions to a degree that can eliminate this shift. In this embodiment, a value of 0.2 mm or more is set.

The displacement section 50 is provided with a pair of front-to-rear displacement sections (hereinafter also simply referred to as "displacement sections") 50 arranged in a positional relationship in which the lower mold 13 is sandwiched between the opposing end faces on the front and rear, and a pair of left-to-right displacement sections (hereinafter also simply referred to as "displacement sections") 50 arranged in a positional relationship in which the lower mold 13 is sandwiched between the opposing end faces on the left and right.

The displacement parts 50 are rod-shaped members that extend from the lower mold 13 to the upper mold 11, and are fixed to the lower mold 13 so as to be rotatable about an axis that intersects with the direction of extension and extends in a direction along the end face of the lower mold 13 (the front-rear displacement part 50 in the left-right direction, and the left-right displacement part 50 in the front-rear direction). As a result, as shown in FIG. 5, each of the displacement parts 50 can be displaced between a pressing position Pa where the upper mold 11 and the lower mold 13 are pressed and a release position Pb where the displacement part 50 is separated from the upper mold 11 and the pressing force at the pressing position Pa is released by moving the end side that reaches the upper mold 11 closer to or away from the upper mold 11.

The link mechanism 60 has a pair of individual links 61 connected to the ends of the pair of displacement parts 50 that extend toward the lower mold 13, and displaces the displacement parts 50 to either the pressing position Pa or the release position Pb by interlocking the displacement parts 50 with the individual links 61. In this embodiment, the ends of the displacement parts 50 that extend toward the lower mold 13 extend to below the lower mold 13, and the individual links 61 extend from these ends toward the center of the lower mold 13 along the bottom surface of the lower mold 13.

The link mechanism 60 also has a synchronous link 63 connected to both of the pair of individual links 61 in the front-rear displacement section 50 and both of the pair of individual links 61 in the left-right displacement section 50. By linking each of the individual links 61 to this synchronous link 63, the displacement section 50 connected to each of the individual links 61 is displaced to the same position, either the pressing position Pa or the release position Pb (see the arrow in FIG. 3(c)).

In this embodiment, a disk-shaped link is used as the synchronous link 63. The disk-shaped link is fixed so as to be rotatable about an axis passing vertically through the intersection of the straight line connecting the pair of front-rear displacement sections 50 and the straight line connecting the pair of left-right displacement sections 50 on the bottom surface of the lower mold 13 (see the arrows in Figures 3(a) and (b)).

The tips of the individual links 61 are rotatably fixed to the synchronous link 63 along a circumference that forms a radius of a predetermined distance from the center of rotation. Here, the tips of a pair of individual links 61 corresponding to the front-rear displacement section 50 and a pair of individual links 61 corresponding to the left-right displacement section 50 are fixed in a positional relationship in which they are aligned along a straight line that extends across the center of rotation of the disc-shaped link.

The retaining portion 70 is provided on the end surface of the upper die 11 and engages with the displacement portion 50 to hold the displacement portion 50 at the pressing position Pa. In this embodiment, as shown in FIG. 5, the retaining portion 70 is provided in the region of the front end of the upper die 11 that is pressed by the end of the displacement portion 50, and in this region, it engages with the fitted portion 51 provided on the end of the displacement portion 50 that corresponds to the upper die 11.

The transmission arm 80 is a rod-shaped member whose one end is connected to one of the displacement parts 50 (the front end in this embodiment) and whose other end extends in a direction away from the displacement part 50, and transmits the driving force transmitted from outside the mold device 1 to the displacement part 50 and the individual link 61 via the other end. In this embodiment, one end of the transmission arm 80 is fixed to the end of the displacement part 50 that extends downward from the part fixed to the lower mold 13.

The opening/closing arm 90 is a rod-shaped member extending along the front-rear structure 31 on the upper frame 30, is attached above the front-rear structure 31, and extends forward of the front-rear structure 31 (either the front or rear side where the hinge portion 40 is not provided).
(2) Molding of molded product by mold apparatus 1 In the mold apparatus 1 configured as described above, first, in the released state in which all of the displacement portions 50 are displaced to the release position Pb, the opening/closing arm 90 is displaced upward together with the upper frame 30, and in response to this displacement, the upper mold 11 held by the upper frame 30 is displaced upward, and the cavity 17, which is the internal space of the mold body 10, is opened.

This displacement of the opening/closing arm 90 may be performed manually, but if the mold device 1 is installed on a production line and moved, it may be configured to be performed without human intervention. For example, a guide rail extending along the movement direction of the mold device 1 may be placed below the opening/closing arm 90, and a section of this guide rail may be displaced upward by a predetermined height, so that in this section the opening/closing arm 90 is guided by the guide rail and pushed upward.

Next, after filling the cavity 17 with foaming material in this state, the opening and closing arm 90 is displaced downward, and the upper mold 11 held by the upper frame 30 is displaced downward in response to this displacement, and is closed with the lower mold 13. Note that the foaming material may be filled after the upper mold 11 and the lower mold 13 have been closed, depending on the structure of the mold body 10.

The displacement of the opening/closing arm 90 here may also be configured to be performed without human intervention when the mold device 1 is installed and moved on a production line. For example, as described above, a portion of the guide rail may be displaced downward by a predetermined height from the height of the guide rail in the mold opening section, and the opening/closing arm 90 that passes through this section may be guided by the guide rail and displaced downward.

Next, an upward driving force from outside the mold device 1 is transmitted to the transmission arm 80, and the link mechanism 60 that receives this driving force simultaneously displaces all of the displacement parts 50 from the release position Pb to the pressing position Pa via the individual links 61 and the synchronous links 63.

This displacement of the transmission arm 80 may be performed manually, but if the mold device 1 is installed on a production line and moved, it may be configured to be performed without human intervention. For example, a guide rail extending along the movement direction of the mold device 1 may be placed below the transmission arm 80, and a section of this guide rail may be displaced upward by a predetermined height, so that in this section the transmission arm 80 is guided by the guide rail and pushed upward.

After this, when the time required for the foaming material in the cavity 17 to foam has elapsed, a downward driving force from outside the mold device 1 is transmitted to the transmission arm 80, and the link mechanism 60 that receives this driving force simultaneously displaces all of the displacement parts 50 from the pressing position Pa to the release position Pb via the individual links 61 and the synchronous links 63.

The displacement of the transmission arm 80 here may also be configured to be performed without human intervention if the mold device 1 is installed and moved on a production line. For example, a guide rail extending along the movement direction of the mold device 1 may be placed above the transmission arm 80, and a section of this guide rail may be displaced downward by a predetermined height, so that in this section the transmission arm 80 is guided by the guide rail and pushed downward.

Then, as described above, by displacing the opening/closing arm 90 upward together with the upper frame 30, the upper mold 11 held by the upper frame 30 is displaced upward in response to this displacement, and the molded product is removed after the cavity 17 is opened and reaches an open state.

(3) Modifications Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments, and various modifications are possible without departing from the spirit of the invention. In particular, the multiple modifications described in this specification can be arbitrarily combined as necessary.

For example, in the above embodiment, a configuration in which one displacement section 50 is provided on each end face of the mold body 10 has been exemplified. However, a configuration in which multiple displacement sections 50 are provided on each end face of the mold body 10 may also be used.

Specifically, as shown in FIG. 6, the displacement section 50 includes a first displacement section 50a and a second displacement section 50b arranged to sandwich either the upper mold 11 or the lower mold 13 at positions spaced apart from each other along the front and rear end faces, and further includes a connecting member 53 that connects the first displacement section 50a and the second displacement section 50b to the left and right. Here, the link mechanism 60 includes individual links 61 connected to the connecting member 53.

As a result, the link mechanism 60 can displace the first displacement portion 50a and the second displacement portion 50b to either the pressing position Pa or the release position Pb via the connecting member 53 connected to the individual link 61 by linking the synchronous link 63 and the individual link 61 together.

Here, the displacement parts 50 are arranged only on the front and rear end faces of the mold body 10, but the displacement parts 50 may be arranged only on the left and right end faces, or the displacement parts 50 may be arranged on the front and rear end faces and on each of the left and right end faces. The end face on which the displacement parts 50 are arranged can be selected from the viewpoints of workability and working space when opening and closing the mold body 10.

In the above embodiment, the displacement portion 50 is fixed so as to be rotatable about an axis that intersects with the direction of extension of the displacement portion 50 and extends in a direction along the end face of the mold body 10. However, the specific configuration of the displacement portion 50 is not limited to this as long as it is displaceable between the pressing position Pa and the release position Pb.

In the above embodiment, the link mechanism 60 is configured with an individual link 61 extending in a specific direction and a disk-shaped synchronous link 63. However, the specific configuration of the link mechanism 60 is not limited to this as long as it can displace each of the displacement parts 50 connected to each individual link 61 to the same position, either the pressing position Pa or the release position Pb.

In the above embodiment, the link mechanism 60 is provided on the lower die 13 side (below the lower die 13). However, the link mechanism 60 may be provided on either the lower die 13 or the upper die 11 side, and more specifically, may be provided above the upper die 11.

In this case, the displacement parts 50 are arranged so as to extend all the way to the lower die 13, sandwiching the upper die 11 from the opposing end faces, and are rotatably fixed to the upper die 11, so that they can be displaced between a pressing position Pa where the upper die 11 and the lower die 13 are pressed, and a release position Pb where the upper die 11 is separated from the lower die 13 and the pressure at the pressing position Pa is released. In addition, the individual links 61 of the link mechanism 60 are connected to the ends of the displacement parts 50 located above the upper die 11, and are arranged so as to extend toward the center of the upper die 11 along the upper surface of the upper die 11, and the synchronous link 63 is fixed rotatably around an axis that passes vertically through the intersection of the straight lines connecting the pair of front-rear displacement parts 50 and the straight lines connecting the pair of left-right displacement parts 50 on the upper surface of the upper die 11.

In the above embodiment, the displacement units 50 are arranged at positions sandwiching either the upper mold 11 or the lower mold 13 from the front and rear end faces and the left and right end faces, that is, a pair of front and rear displacement units 50 and a pair of left and right displacement units 50 are provided. However, the displacement units 50 may be provided with only one of these pairs.

In this way, when only one pair of forward/rearward displacement parts 50 or one pair of left/right displacement parts 50 is provided, a link other than a disk-shaped link may be used as the synchronous link 63 in the link mechanism 60.

For example, as shown in FIG. 7, a configuration in which a pair of displacement parts 50 are arranged at positions sandwiching either the upper mold 11 or the lower mold 13 from the front and rear end faces can be considered in which the individual link 61 is displaceable only in the front-rear direction, and the synchronous link 63 is displaced by an axle 631 and a pair of link pieces 633 shown below (see the arrow in FIG. 7(a)). The axle 631 here is fixed at the midpoint of the straight line connecting the displacement parts 50 so that it is displaceable only in the left-right direction. The link piece 633 is a member that connects the axle 631 and the individual link 61, and one end side is rotatably connected to the axle 631, and the other end side is rotatably connected to the end of the individual link 61.

In addition, as shown in FIG. 8, a configuration in which a pair of displacement parts 50 are arranged at positions sandwiching either one of the upper mold 11 and the lower mold 13 from the left and right end faces can be considered in which the individual link 61 is displaceable only in the left-right direction, and the synchronous link 63 is displaced by a first link piece 635 and a pair of second link pieces 637 shown below (see the arrow in FIG. 8(a)). The first link piece 635 here is fixed so as to be displaceable only in the front-rear direction. The second link piece 637 is a member that connects the first link piece 635 and the individual link 61, and one end side of the second link piece 637 is rotatably connected to the first link piece 635 and the other end side is rotatably connected to the end of the individual link 61. The connection point between the second link piece 637 and the individual link 61 is fixed so as to be displaceable only in the left-right direction. The first link piece 635 is connected to a displacement part 50 provided on either the front or rear end face, and displaces in the front-rear direction in synchronization with the displacement part 50.

(4) Effects In the above embodiment, when any of the individual links 61 displaces the corresponding displacement part 50 to the pressing position Pa, the other individual links 61 are linked via the synchronous links 63 to displace the corresponding displacement part 50 to the pressing position Pa, whereby the pair of displacement parts 50 sandwich the opposing ends of the mold body 10 and press the upper mold 11 and the lower mold 13 at each end to clamp the mold. As a result, it is possible to easily achieve high-precision mold clamping between the upper mold 11 and the lower mold 13.

In the above embodiment, the displacement unit 50 is a rod-shaped member that is disposed at a position sandwiching either one of the upper mold 11 or the lower mold 13 (specifically the lower mold 13) at the front and rear end faces and at the left and right end faces, and extends to the other mold (specifically the upper mold 11), and is fixed to one of the molds so as to be rotatable about an axis that intersects with the direction of extension and extends in a direction along the end face. As a result, the displacement unit 50 can be displaced between the pressing position Pa and the release position Pb by moving the end side that reaches the other mold toward or away from the other mold.

In addition, in the above embodiment, the shaft 41 and the hole 43 in the hinge portion 40 are configured to have a "loose fit." Therefore, even if the position of the upper die 11 shifts relative to the lower die 13 during the process of fitting the upper die 11 to the lower die 13, this shift can be eliminated by displacing the upper die 11 side in the forward/backward and left/right directions.

In particular, in the above embodiment, the mold mating surface 15 between the upper mold 11 and the lower mold 13 is formed so as to slope downward toward the cavity 17. Therefore, in the process of fitting the upper mold 11 to the lower mold 13, the upper mold 11 is guided by the slope of the lower mold 13 that forms the mold mating surface 15. As a result, the upper mold 11 can be fitted to the lower mold 13 with the misalignment corrected without any particular displacement in the front-rear or left-right directions.

In addition, in the above embodiment, a pair of front-rear displacement sections 50 and a pair of left-right displacement sections 50 are provided, and the synchronous link 63 is connected to a pair of individual links 61 in the front-rear displacement sections 50 and a pair of individual links 61 in the left-right displacement sections 50. This allows each pair to clamp the front and rear ends and the left and right ends of the mold body 10, and press the upper mold 11 and the lower mold 13 at each of the front-rear, left and right ends to clamp the mold.

In addition, in the above embodiment, a retaining portion 70 is provided on the end surface of the other of the upper and lower dies 11 and 13 (specifically, the lower die 13), and engages with the displacement portion 50 to retain the displacement portion 50 at the pressing position Pa. This allows the displacement portion 50, which has been displaced to the pressing position Pa, to be retained in this position.

In addition, in the above embodiment, by transmitting an upward driving force from outside the mold device 1 to the transmission arm 80, all of the displacement sections 50 can be simultaneously displaced from the release position Pb to the pressing position Pa via the individual links 61 and the synchronous links 63 that receive this driving force.

1: mold device, 10: mold body, 11: upper mold, 13: lower mold, 15: mold mating surface, 17: cavity, 20: lower frame, 21: structure, 23: left and right structure, 30: upper frame, 31: structure, 33: left and right structure, 40: hinge portion, 41: shaft, 43: hole, 50: displacement portion, 50: left and right displacement portion, 50a: first displacement portion, 50b: second displacement portion, 51: fitted portion, 53: connecting member, 60: link mechanism, 61: individual link, 63: synchronous link, 70: holding portion, 80: transmission arm, 90: opening and closing arm, 631: shaft, 633: link piece, 635: first link piece, 637: second link piece, Pa: pressing position, Pb: release position.

Claims (8)

A mold body having an upper mold and a lower mold divided in the vertical direction and extending in both the front-rear direction and the left-right direction;
a lower frame that supports the mold body from below by a structure extending in the front-rear direction;
an upper frame that holds the mold body by sandwiching it between the upper frame and the lower frame using a structure extending in the front-rear direction;
a hinge portion provided on either the front or rear end of each of the lower frame and the upper frame, the hinge portion fixing the upper frame to the lower frame rotatably about an axis extending along the left-right direction at the end;
The upper mold is disposed at a position sandwiching the upper mold from each of the front and rear end faces or each of the left and right end faces,
a pressing position for pressing the upper mold and the lower mold;
a pair of displacement portions that are displaceable between a release position where the displacement portions are separated from the upper mold and the pressing force is released;
a link mechanism including a pair of individual links connected to ends of the pair of displacement parts extending toward the lower mold side, the individual links interlocking with the displacement parts to displace the displacement parts to either the pressing position or the release position,
the link mechanism has a synchronous link connected to both of the pair of individual links, and the synchronous link and each of the individual links are interlocked to displace the displacement portion connected to each of the individual links to the same position of either the pressing position or the release position;
each of the displacement portions has an end portion extending toward the lower mold portion and reaching a position below the lower mold portion;
The individual link extends from an end portion of the displacement portion extending toward the lower mold toward a center of the lower mold along a bottom surface of the lower mold.
Mold equipment. A mold body having an upper mold and a lower mold divided in the vertical direction and extending in both the front-rear direction and the left-right direction;
a lower frame that supports the mold body from below by a structure extending in the front-rear direction;
an upper frame that holds the mold body by sandwiching it between the upper frame and the lower frame using a structure extending in the front-rear direction;
a hinge portion provided on either the front or rear end of each of the lower frame and the upper frame, the hinge portion fixing the upper frame to the lower frame rotatably about an axis extending along the left-right direction at the end;
a pair of displacement units disposed at positions sandwiching either one of the upper mold and the lower mold from front and rear end surfaces or left and right end surfaces, and displaceable between a pressing position where the upper mold and the lower mold are pressed and a release position where the upper mold and the lower mold are separated from at least the other mold to release the pressing;
a link mechanism including a pair of individual links connected to the displacement portions, the individual links interlocking with the displacement portions to displace the displacement portions to either the pressing position or the release position,
the link mechanism has a synchronous link connected to both of the pair of individual links, and the synchronous link and each of the individual links are interlocked to displace the displacement portion connected to each of the individual links to the same position of either the pressing position or the release position;
The synchronous link is fixed so as to be rotatable about a vertically penetrating shaft as a rotation center.
Mold equipment. The synchronous link is a plate-like link fixed so as to be rotatable around a vertically penetrating shaft as a center of rotation, and the tip of each of the individual links is rotatably fixed along a circumference having a radius of a predetermined distance from the center of rotation.
The mold apparatus according to claim 2. A mold body having an upper mold and a lower mold divided in the vertical direction and extending in both the front-rear direction and the left-right direction;
a lower frame that supports the mold body from below by a structure extending in the front-rear direction;
an upper frame that holds the mold body by sandwiching it between the upper frame and the lower frame using a structure extending in the front-rear direction;
a hinge portion provided on either the front or rear end of each of the lower frame and the upper frame, the hinge portion fixing the upper frame to the lower frame rotatably about an axis extending along the left-right direction at the end;
a pair of displacement units disposed at positions sandwiching either one of the upper mold and the lower mold from front and rear end surfaces or left and right end surfaces, and displaceable between a pressing position where the upper mold and the lower mold are pressed and a release position where the upper mold and the lower mold are separated from at least the other mold to release the pressing;
a link mechanism including a pair of individual links connected to the displacement portions, the individual links interlocking with the displacement portions to displace the displacement portions to either the pressing position or the release position,
the link mechanism has a synchronous link connected to both of the pair of individual links, and the synchronous link and each of the individual links are interlocked to displace the displacement portion connected to each of the individual links to the same position of either the pressing position or the release position;
the displacement section includes a pair of front-rear displacement sections disposed in a positional relationship in which either one of the upper mold and the lower mold is sandwiched between the front and rear end faces of the upper mold and the lower mold, and a pair of left-right displacement sections disposed in a positional relationship in which either one of the upper mold and the lower mold is sandwiched between the front and rear end faces of the upper mold and the lower mold,
In the link mechanism, the synchronous link is connected to a pair of the individual links in the front-rear displacement section and a pair of the individual links in the left-right displacement section, and the individual links connected to the synchronous link are interlocked with each other.
Mold equipment. A mold body having an upper mold and a lower mold divided in the vertical direction and extending in both the front-rear direction and the left-right direction;
The upper mold is disposed at a position sandwiching the upper mold from each of the front and rear end faces or each of the left and right end faces,
a pressing position for pressing the upper mold and the lower mold;
a pair of displacement portions that are displaceable between a release position where the displacement portions are separated from the upper mold and the pressing force is released;
a link mechanism including a pair of individual links connected to ends of the pair of displacement parts extending toward the lower mold side, the individual links interlocking with the displacement parts to displace the displacement parts to either the pressing position or the release position,
the link mechanism has a synchronous link connected to both of the pair of individual links, and the synchronous link and each of the individual links are interlocked to displace the displacement portion connected to each of the individual links to the same position of either the pressing position or the release position;
each of the displacement portions has an end portion extending toward the lower mold portion and reaching a position below the lower mold portion;
The individual link extends from an end portion of the displacement portion extending toward the lower mold toward a center of the lower mold along a bottom surface of the lower mold.
Mold equipment. A mold body having an upper mold and a lower mold divided in the vertical direction and extending in both the front-rear direction and the left-right direction;
a pair of displacement units disposed at positions sandwiching either one of the upper mold and the lower mold from front and rear end surfaces or left and right end surfaces, and displaceable between a pressing position where the upper mold and the lower mold are pressed and a release position where the upper mold and the lower mold are separated from at least the other mold to release the pressing;
a link mechanism including a pair of individual links connected to the displacement portions, the individual links interlocking with the displacement portions to displace the displacement portions to either the pressing position or the release position,
the link mechanism has a synchronous link connected to both of the pair of individual links, and the synchronous link and each of the individual links are interlocked to displace the displacement portion connected to each of the individual links to the same position of either the pressing position or the release position;
The synchronous link is fixed so as to be rotatable about a vertically penetrating axis.
Mold equipment. The synchronous link is a plate-like link fixed so as to be rotatable around a vertically penetrating shaft as a center of rotation, and the tip of each of the individual links is rotatably fixed along a circumference having a radius of a predetermined distance from the center of rotation.
The mold apparatus according to claim 6. a transmission arm, which is a rod-shaped member having one end connected to any one of the displacement parts and the other end extending in a direction away from the displacement part, and which transmits a driving force transmitted from outside the mold device to the displacement part and the individual link via the other end;
The mold apparatus according to any one of claims 1 to 7.