JP2019013945A - Die-cast casting mold device - Google Patents

Abstract

To provide a mold device in which a plate member fixed inside a mold is removed easily.SOLUTION: A die-cast casting mold device includes: a mold; a liner provided inside the mold; a plate member provided between the inside of the mold and the liner; and a bolt member for fixing the plate member to the inside of the mold. The bolt member includes: a barrel part penetrating the mold from the outside to the inside of the mold and having a tip end screwed to the plate member; and a lever part connected to a base end of the barrel part at the outside of the mold and used for rotating the barrel part.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a die casting die apparatus.

  Patent Document 1 discloses a mold apparatus in which a plate member is fixed inside a mold.

JP 2016-120680 A

  It is conceivable to fix such a plate member to the inside of the mold with a bolt member penetrating from the outside to the inside of the mold. In such a case, when loosening the bolt member and removing the plate member from the mold, it is conceivable to rotate the head of the bolt member using a tool from the outside of the mold. However, when there is no space for inserting such a tool around the mold, it is necessary to move the mold to a place where there is sufficient space and then rotate the bolt member using the tool. There is a possibility that the workability of removing the member is lowered.

  Then, an object of this invention is to provide the die-casting die apparatus with which the removal operation | work of the board member fixed inside the metal mold | die is easy.

  The object is to provide a mold, a nest disposed inside the mold, a plate member disposed between the inside of the mold and the nest, and the plate member inside the mold. And a bolt member that penetrates from the outside to the inside of the mold and has a front end screwed into the plate member, and a base of the barrel on the outside of the mold. It can be achieved by a die-casting mold apparatus that is connected to an end and includes a lever part for rotating the body part.

  ADVANTAGE OF THE INVENTION According to this invention, the die-casting die apparatus with which the removal operation | work of the board member fixed inside the metal mold | die is easy can be provided.

FIG. 1 is a cross-sectional view of a die casting machine. FIG. 2 is a cross-sectional view on the XY plane around the plate member and the bolt member in a state where the fixed mold and the movable mold are opened. Drawing 3 is an explanatory view of the bolt member of a modification.

  FIG. 1 is a cross-sectional view of a die casting machine (die casting casting die apparatus) 1. The die casting machine 1 includes a fixed platen 10, a movable platen 20, a fixed mold 30, a movable mold 40, a fixed side insert 50, a movable side insert 60, slide inserts 80L and 80R, cylinders 82L and 82R, and a plate member 110L. And 110R, and bolt members 130L and 130R. The fixed platen 10 is fixed to a base (not shown). The movable platen 20 is configured to be movable in a direction close to the fixed platen 10 (die clamping direction) and a direction away from the fixed platen 10 (die opening direction) by a driving device (not shown). In FIG. 1, the movable platen 20 is movable in the Z direction. The fixed mold 30 is fixed to the fixed platen 10. The movable mold 40 is fixed to the movable platen 20. In FIG. 1, illustration of an extruding pin provided in the movable die 40, a driving device for the extruding pin, a fixed die 30 and a cooling water passage formed in the movable die 40 is omitted. is there.

  In the fixed mold 30, a recess 31 a is formed on the surface facing the movable mold 40. Near the center of the recess 31a, a recess 31b smaller than the recess 31a in the X direction and the Y direction is formed. The fixed side insert 50 is fitted in the recess 31b. In the movable mold 40, a recess 41 b is formed near the center of the surface facing the fixed mold 30. The movable side insert 60 is fitted in the recess 41b. Therefore, the fixed side insert 50 and the movable side insert 60 face each other in the Z direction. The slide inserts 80L and 80R face each other in the X direction perpendicular to the Z direction via a part of the movable insert 60. The slide inserts 80L and 80R are opposed to each other so as to be sandwiched between the fixed insert 50 and the movable insert 60, and these define a cavity C that is in the shape of a molded product. 1 shows a state where the mold is closed, but the movable platen 20 moves in a direction away from the fixed platen 10, so that the movable side insert 60 and the slide are moved relative to the fixed side insert 50. The inserts 80L and 80R are separated together with the movable mold 40. The fixed side insert 50, the movable side insert 60, and the slide inserts 80L and 80R are replaceably provided in the fixed mold 30 and the movable mold 40.

  The cylinders 82L and 82R are hydraulic cylinders fixed to the movable mold 40. Press bodies 84L and 84R that are movable in the X direction perpendicular to the Z direction are fixed to the respective tips of the cylinders 82L and 82R. The slide inserts 80L and 80R are supported by a guide portion (not shown) provided in the movable mold 40 so as to be slidable in the X direction. The slide inserts 80L and 80R are pressed by the pressing bodies 84L and 84R so as to contact the movable side insert 60, respectively.

  The plate members 110L and 110R are fixed to the inner side surface of the recess 31a of the fixed mold 30 by bolt members 130L and 130R, respectively. Details of the bolt members 130L and 130R will be described later. The plate members 110L and 110R are made of metal. The plate member 110 </ b> L is disposed between the slide insert 80 </ b> L and the inner surface of the fixed mold 30, more specifically, between the pressing body 84 </ b> L and the inner surface of the fixed mold 30. The plate member 110 </ b> R is disposed between the slide insert 80 </ b> R and the inner surface of the fixed mold 30, more specifically, between the pressing body 84 </ b> R and the inner surface of the fixed mold 30. The plate members 110L and 110R define the positions of the slide inserts 80L and 80R in the X direction by contacting the pressing bodies 84L and 84R, respectively. Thereby, for example, the slide inserts 80L and 80R are prevented from sliding so as to open in the X direction due to the pressure when the molten metal is filled in the cavity C.

  The surface in which the slide insert 80L and the pressing body 84L are in contact and the surface in which the slide insert 80R and the pressing body 84R are in contact are the directions in which the movable mold 40 approaches the fixed mold 30, that is, in FIG. According to the downward direction in the Z-axis direction, the two surfaces are inclined with respect to each other so as to approach each other. As a result, when the mold is moved from the open state to the closed state, the pressing members 84L and 84R are pressed by the slide inserts 80L and 80R, respectively, and are in contact with the movable side insert 60, so that the pressing member 84L. And 84R come into contact with the plate members 110L and 110R, respectively, and the movable side insert 60 and the slide inserts 80L and 80R are guided to appropriate positions with respect to the fixed mold 30 and the fixed side insert 50. Thereby, the shape of the cavity C can also be made as desired.

  Next, the bolt member 130L will be described. Since the bolt member 130R has the same configuration as the bolt member 130L, the description thereof is omitted. FIG. 2 is a cross-sectional view on the XY plane around the plate member 110L and the bolt member 130L in a state where the fixed mold 30 and the movable mold 40 are opened. As shown in FIGS. 1 and 2, the plate member 110 </ b> L is a substantially plate-like member having the Y direction as the longitudinal direction and the X direction as the thickness direction. The plate member 110 </ b> L has an outer surface 112 facing the outside of the fixed mold 30 and an inner surface 114 facing the inside of the fixed mold 30. The inner side surface 114 of the plate member 110L is a surface that contacts the pressing body 84L. The outer side surface 112 is in contact with the inner side surface 32 of the fixed mold 30.

  The bolt member 130 </ b> L includes a lever portion 132 and a body portion 136. The body 136 extends in a straight line, passes through the inner surface 32 from the outer surface 34 of the fixed mold 30, and the front end is screwed to the plate member 110L, whereby the plate member 110L is fixed to the fixed mold. It is fixed to the inner side surface 32 of 30. Specifically, the fixed mold 30 is formed with a through hole 36 through which the body 136 penetrates from the inner side surface 32 to the outer side surface 34, and extends partway from the outer side surface 112 of the plate member 110L to the inner side surface 114 side. A screw hole 116 is formed. Note that a thread groove and a screw thread that are screwed into the screw hole 116 are formed only at the distal end portion of the body portion 136, and a thread groove and a thread thread are formed in a portion that penetrates the through hole 36 of the body portion 136. It is cylindrical and is not done. The lever part 132 is attached in advance to the base end of the body part 136 outside the fixed mold 30, and extends from the base end of the body part 136 in a direction intersecting with the axial direction of the body part 136. The operator can also rotate the body part 136 in the direction D1 by rotating the lever part 132 in the direction D1 around the axial direction of the body part 136. Thereby, the bolt member 130L can be loosened with respect to the plate member 110L, and the bolt member 130L can be removed from the plate member 110L. The operator can fasten the bolt member 130L to the plate member 110L by rotating the lever portion 132 in the direction D2 opposite to the direction D1.

  Thus, even when the space around the die casting machine 1 is not sufficient, the lever portion 132 is attached to the trunk portion 136 in advance, so if there is enough space to rotate the lever portion 132, The plate member 110L can be easily removed from the fixed mold 30. Therefore, for example, even when the plate member 110L is worn and replaced, the plate member 110L can be easily removed, and the replacement work is facilitated. Further, in order to remove the plate member 110L, it is not necessary to temporarily stop the production line, remove the fixed mold 30 from the die casting machine 1, and transport it to a place with sufficient space. For this reason, the prolongation of the stop period of a manufacturing line can be suppressed and the fall of productivity can be suppressed.

  When the inner surface 114 of the plate member 110L is worn, the lever portion 132 is rotated in the direction D1 so as to loosen the bolt member 130L, and the inner surface 32 of the fixed mold 30 and the outer surface of the plate member 110L. By forming a gap with the gap 112 and inserting a shim plate into the gap, a reduction in the thickness of the plate member 110L can be compensated according to the amount of wear of the inner surface 114 of the plate member 110L.

  In the above embodiment, the lever part 132 and the body part 136 always rotate integrally, but the present invention is not limited to this. For example, the lever part 132 and the trunk | drum 136 can be switched to a connection state or a non-connection state. As an example, the lever part 132 is movably connected to the body part 136 by a predetermined range in the axial direction of the body part 136, and is connected or disconnected depending on the position of the lever part 132 in this movable range. It may be configured to be switched to a state. The operator can rotate the trunk portion 136 via the lever portion 132 by switching the position of the lever portion 132 in the movable range to be in a connected state. In the non-connected state, the lever part 132 can freely rotate with respect to the body part 136. For this reason, it can prevent that the trunk | drum 136 rotates by accidentally rotating the lever part 132 by making it a non-connection state, for example during operation | movement of the die-casting machine 1. FIG. When rotating the body 136, for example, the lever 132 is rotated in the direction D1 to a predetermined position in the connected state, and then the lever 132 is rotated in the direction D2 in the non-connected state to the original position. The lever portion 132 can be rotated in the direction D1 by returning to the connected state again. By rotating the lever portion 132 back and forth within a predetermined range while switching between the connected state and the non-connected state in this way, the body portion 136 is intermittently moved in the direction D1 or D2 without rotating the lever portion 132 by 360 degrees. Can be rotated. This improves workability.

  Further, the ratchet mechanism is used so that when the lever part 132 is rotated in the direction D1 in the connected state, the body part 136 is also rotated, but when the lever part 132 is rotated in the direction D2, the body part 136 is not rotated. May be. Further, when such a ratchet mechanism is employed, a non-connected state, a first connected state in which both the lever portion 132 and the trunk portion 136 rotate in the direction D1, but only the lever portion 132 rotates in the direction D2, The lever portion 132 and the body portion 136 may rotate together in the direction D2, but may be configured to be switched to a second connected state in which only the lever portion 132 rotates in the direction D1. Such switching may be configured to be performed according to the position of the operation unit provided in the lever unit 132.

  FIG. 3 is an explanatory diagram of a bolt member 130La according to a modification, and corresponds to FIG. In addition, about the structure same as 130 L of bolt members, the same description is attached | subjected and the overlapping description is abbreviate | omitted. By rotating the lever portion 132a in the direction D1 in the state of FIG. 3, the bolt member 130La is loosened with respect to the plate member 110L. Further, by rotating the lever portion 132a in the direction D2, the bolt member 130La is fastened to the plate member 110L. Further, in the bolt member 130La, a clamp portion 134a having a diameter larger than that of the body portion 136 is provided on the proximal end side of the body portion 136 that faces the lever portion 132a, and the lever portion 132a further has an axial center of the body portion 136. In the direction D3 or D4 around the direction orthogonal to the direction, it is configured to be rotatable over a range of about 180 degrees.

  In FIG. 3, the lever portion 132a is in a clamp position, which will be described later, and the lever portion 132a can be moved to the unclamp position by rotating in the direction D3. That is, the lever portion 132a can rotate between the clamp position and the unclamp position by rotating in the direction D3 or D4. As shown in FIG. 3, when the lever portion 132 a is in the clamping position, the outer side surface 34 and the inner side surface 32 of the fixed mold 30 are formed by the clamping portion 134 a and the plate member 110 </ b> L screwed to the tip of the body portion 136. Are clamped from both sides with a predetermined pressing force.

  On the other hand, when the lever portion 132a is rotated from the clamp position to the unclamp position, the distance between the clamp portion 134a and the front end of the trunk portion 136 is longer than when the lever portion 132a is in the clamp position. It moves to the base end side of the trunk | drum 136 so that it may become. That is, the clamp part 134 a moves to the proximal end side of the body part 136 so as to be slightly separated from the outer surface 34 of the fixed mold 30. Thereby, the clamp part 134a and the plate member 110L are switched to the unclamped state in which the pressing force acting on a part of the fixed mold 30 is released. In this way, the plate member 110L can be fixed to the inner surface 32 of the fixed mold 30 in a stable state.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

  In the above embodiment, the plate members 110 </ b> L and 110 </ b> R are fixed inside the fixed mold 30. However, the present invention is not limited to this, and the plate members 110 </ b> L and 110 </ b> R may be fixed inside the movable mold 40.

DESCRIPTION OF SYMBOLS 1 Die-casting machine 10 Fixed platen 20 Movable platen 30 Fixed mold 31a, 31b, 41b Recess 32, 114 Inner side surface 34, 112 Outer side surface 36 Through hole 40 Movable die 50 Fixed side insert 60 Movable side insert 80L, 80R Slide Insert 82L, 82R Cylinder 84L, 84R Press body 110L, 110R Plate member 116 Screw hole 130L, 130R Bolt member 132 Lever part 136 Body C Cavity

Claims (1)

Mold,
A nest disposed inside the mold,
A plate member disposed between the inside of the mold and the insert;
A bolt member for fixing the plate member inside the mold, and
The bolt member is
A body part penetrating from the outside to the inside of the mold and having a tip screwed to the plate member;
A die casting casting die apparatus, comprising: a lever portion connected to a base end of the barrel portion outside the die and for rotating the barrel portion.

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