Mold equipment

Abstract

To solve the following problem: a total volume of an apparatus is increased in conventional mold device.SOLUTION: An aspect of the mold apparatus includes: a fixed die base 11 for supporting a fixed die; a mobile die base 12 for supporting a mobile die; a frame 10 to which the fixed die base 11 is fixed and which extends in the direction of movement of the mobile die base 12 and is formed in a form of a wall surface; and holding means 13, 14 for movably supporting the mobile die base 12 on the frame 10, wherein: the frame 10 is provided along at least one side of the mobile die base except for a top surface of the mobile die base 12 when the device is installed; and the holding means 13 and 14 support the mobile die base 12 at one side of the mobile die base 12.SELECTED DRAWING: Figure 1

Description

[[Technical Field]]

[0001] The present invention relates to a mold apparatus, and for example, to a mold apparatus including a mold for molding a sand mold. [[Background Art]]

[0002] For example, Patent Document 1 discloses a technology related to a mold apparatus. Since a mold used in a mold apparatus is heavy, as shown in FIG. 1 of Patent Document 1, a movable platen that supports the movable mold is held by a structure such as a tie bar. [[Prior Art Documents]] [[Patent Documents]]

[0003] [[Patent Document 1]] Japanese Patent No. 2610197 [[Summary of the Invention]] [[Problem to be Solved by the Invention]]

[0004] However, when the movable mold is held by the tie bar, there arises a problem that a structural frame for supporting the tie bar becomes large, and restrictions on installation increase.

[0005] The present invention has been made to solve such a problem, and an object of the present invention is to reduce restrictions on the installation of a mold apparatus. [[Means for Solving the Problem]]

[0006] One embodiment of the mold apparatus according to the present invention comprises a fixed mold base for supporting a fixed mold, a movable mold base for supporting a movable mold, a frame to which the fixed mold base is fixed and which extends in the direction of movement of the movable mold base and is formed in the shape of a wall, and a holding means for supporting the movable mold base on the frame so as to be movable, wherein the frame is provided along at least one side of the movable mold base excluding the upper surface when the apparatus is installed, and the holding means supports the movable mold base on one side of the movable mold base.

[0007] In the mold apparatus according to the present invention, the movable base is cantilevered. [Effects of the Invention]

[0008] According to the present invention, the constraints on the installation of the mold apparatus can be reduced. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram of the mold apparatus according to Embodiment 1. [Figure 2] This is a schematic diagram of the mold apparatus according to Embodiment 2. [Figure 3] This is a schematic diagram of the mold apparatus according to Embodiment 3. [Figure 4] This diagram illustrates the inspection procedure for the mold apparatus according to Embodiment 3. [Figure 5] This is a schematic diagram of the mold apparatus according to Embodiment 4. [Modes for carrying out the invention]

[0010] Embodiment 1 First, Figure 1 shows a schematic diagram of the mold apparatus 1 according to Embodiment 1. In Figure 1, the top of the diagram shows a side view of the apparatus as seen from the side when the mold apparatus 1 is installed, and the bottom of the diagram shows a top view of the apparatus as seen from above.

[0011] As shown in Figure 1, the mold apparatus 1 according to Embodiment 1 includes a frame 10, a fixed mold base 11, a movable mold base 12, holding means (e.g., rails 13 and guides 14), and movable means (cylinders 15 and plungers 16). The mold apparatus 1 is also provided with a fixed mold 20 and a movable mold 21. The fixed mold 20 is supported by the fixed mold base 11. The movable mold 21 is supported by the fixed mold base 11. The fixed mold 20 and the movable mold 21 are interchangeable depending on the molded product to be manufactured.

[0012] Frame 10 is, Fixed base 11 It is connected so that it is fixed in place. Mobile base 12 It is mounted so that it can be moved. And frame 10 is Mobile base 12 It is formed in a wall shape that extends in the direction of movement. The fixed base 11 supports the fixed base 20. The movable base 12 supports the movable base 21. 。

[0013] In the example shown in Figure 1, the support means is: Mobile base 12 The frame 10 is supported so that it can move. In the example shown in Figure 1, a combination of rails 13 and guides 14 is used as the support means. The rails 13 are Frame 10 The guide 14 is fitted into the rail so as to be movable along the rail and is fixed to the movable base 12.

[0014] In the example shown in Figure 1, the movable mechanism employs a combination of a cylinder 15 and a plunger 16. The plunger 16 is connected to the central part of the movable base 12. The cylinder 15 slides the plunger 16 in the direction of pushing it out and the direction of pushing it back, thereby moving the movable base 12 in the lateral direction (for example, the Y direction) in Figure 1.

[0015] In this embodiment, the mold apparatus 1 is provided along at least one side of the movable base 12 excluding the upper surface when the apparatus is installed, and the holding means is along one side of the movable base 12. Surface along The mobile base is supported by the frame 10. In the example shown in Figure 1, the frame 10 supports the mobile base 12. To oppose the horizontally facing surface among the surfaces It will be provided. In other words, the diagram 1In the mold apparatus 1 according to the first embodiment shown in , the movable mold base 12 is cantilevered. The mold apparatus 1 according to the first embodiment is configured such that, in particular, no other structure covers a region where the fixed mold 20 and the movable mold 21 contact each other.

[0016] In the mold apparatus 1 according to the first embodiment, molding sand is charged into a mold cavity formed by the fixed mold 20 and the movable mold 21 from the upper side (e.g., Z direction) of the apparatus. Therefore, a portion of the upper surface of the mold apparatus 1 where the fixed mold 20 and the movable mold 21 are mated needs to be exposed.

[0017] Although the example shown in Fig. 1 illustrates the frame 10, fixed mold base 11, movable mold base 12, guide 14, cylinder 15, and plunger 16 in an exposed form, these components may be provided with a cover. In this case, an opening is provided in the cover centered on the region where the fixed mold 20 and the movable mold 21 contact each other.

[0018] As shown in Fig. 1, in the mold apparatus 1 according to the first embodiment, by using the guide 14 and the rail 13 as support means for the movable mold base 12, a structure for supporting the support means itself such as a tie bar is eliminated, so the total volume of the apparatus can be reduced.

[0019] For the above reason, in the mold apparatus 1 according to the first embodiment, even if two opposite sides of the movable mold base 12 are respectively supported by the rail 13 and the guide 14, a structure for supporting the support means itself like a tie bar is not required, so it is also possible to reduce the total volume of the apparatus. However, compared with the mold apparatus 1 having the cantilever support structure shown in Fig. 1, the effect of reducing the total volume is smaller.

[0020] In the example shown in Figure 1, rails 13 and guides 14 are shown as support means, but the rails can be replaced with ball screws, and an actuator to rotate the ball screws can also be added. When using ball screws, it is necessary to provide screw holes in the movable base 12 that engage with the ball screws. Thus, even when using a combination of ball screws and actuators, the structure supporting the ball screws can be very simple, thus reducing the total volume of the mold apparatus 1.

[0021] Furthermore, in the mold apparatus 1 according to Embodiment 1, the support means is fixed only to the frame 10, and there are no constraints on other parts, thus increasing the degree of freedom in installing control equipment and other devices associated with the mold apparatus 1.

[0022] Embodiment 2 Embodiment 2 describes another form of the mold apparatus 1 according to Embodiment 1. In the description of Embodiment 2, components that are the same as those described in Embodiment 1 are denoted by the same reference numerals as in Embodiment 1 and their descriptions are omitted.

[0023] Figure 2 shows a schematic diagram of the mold apparatus 2 according to Embodiment 2. As shown in Figure 2, the mold apparatus 2 according to Embodiment 2 has a fixed mold 30 and a movable mold 31 instead of a fixed mold 20 and a movable mold 21. The fixed mold 30 is the fixed mold 20 with a fixed mold positioning key 30a added. The movable mold 31 is the movable mold 21 with a movable mold positioning key 31a added. The fixed mold positioning key 30a and the movable mold positioning key 31a are protrusions and recesses that fit together when the fixed mold 30 and the movable mold 31 are joined, as shown in area A in the lower part of Figure 2. From another viewpoint, the positioning key has one of a pair of positioning recesses and protrusions formed on the fixed mold 20, and the other of a pair of positioning recesses and protrusions formed on the movable mold 21.

[0024] A holding means (e.g., guide 14) is provided for this positioning key. surface Opposing surface 1 including at least surface The above surfaceIt is provided in the example shown in Figure 2. surface Guide 14 is provided among them. surface The mobile base 12 facing the other surface A movable positioning key 31a is provided. In addition, a fixed positioning key 30a is provided. surface Among them, a movable positioning key 31a is provided. surface It is provided on the corresponding edge.

[0025] In this way, by providing positioning keys, positioning becomes easier when attaching the fixed type 30 and the movable type 31 to the fixed type base 11 and the movable type base 12. Furthermore, by forming the positioning keys on the side of the fixed type 30 where the guide 14 is provided, the positioning accuracy can be further improved compared to the example shown in Figure 2.

[0026] Furthermore, it is preferable to place the positioning key near the center of the edge where it is to be installed. By placing the positioning key near the center of the edge, displacement of the key position due to thermal expansion of the mold can be suppressed.

[0027] Embodiment 3 Embodiment 3 describes another form of the mold apparatus 1 according to Embodiment 1. In the description of Embodiment 3, components that are the same as those described in Embodiment 1 are denoted by the same reference numerals as in Embodiment 1 and their descriptions are omitted.

[0028] Figure 3 shows a schematic diagram of the mold apparatus 3 according to Embodiment 3. As shown in Figure 3, the mold apparatus 3 according to Embodiment 3 is provided with a scale guide 40 on the frame 10. Figure 3 shows an enlarged view of the scale guide 40. As shown in Figure 3, the scale guide 40 has at least one machined surface 41 formed with a preset verticality and flatness. A guide jig 42 can also be attached to the machined surface 41. The guide jig 42 may be attached during inspection, which will be described later, or it may be attached permanently.

[0029] Here, we will explain the inspection using the scale guide 40. Figure 4 shows a diagram illustrating the inspection procedure of the mold apparatus 3 according to Embodiment 3. As shown in Figure 4, when inspecting, the scale 50 is placed against the frame 10 along the machined surface 41. The movable base 12 is also provided with dimensional reference lines RL1 and RL2 formed at positions relative to the machined surface 41. The base-side reference line RL1 is, for example, a line that intersects the machined surface 41 perpendicularly. The base-side reference line RL2 is, for example, a line that is at a certain distance from the machined surface 41 and parallel to the machined surface 41. The scale 50 is also provided with a scale-side reference line SL at a position that coincides with the base-side reference line RL2. Then, by placing the scale 50 against the machined surface 41 and checking whether the base-side reference line RL1 is parallel to the side of the scale 50 and whether the base-side reference line RL1 and the scale-side reference line SL overlap, it is confirmed whether the movable base 12 is tilted from the reference position. Although the machined surface 41 is not shown in Figure 4, using the machined surface 41 makes it easier to apply the scale 50 to the specified inclination and position.

[0030] In this way, by using the scale guide 40, the tilt of the movable base 12 can be easily checked in the mold apparatus 3 according to Embodiment 3. In the cantilevered mold apparatus 3, the movable base 12 is prone to tilting due to deterioration over time, and by easily inspecting this tilt, the maintenance process of the mold apparatus 3 can be simplified.

[0031] Embodiment 4 Embodiment 4 describes another form of the mold apparatus 1 according to Embodiment 1. In the description of Embodiment 4, components that are the same as those described in Embodiment 1 are denoted by the same reference numerals as in Embodiment 1 and their descriptions are omitted.

[0032] Figure 5 shows a schematic diagram of the mold apparatus according to Embodiment 4. As shown in Figure 5, in Embodiment 4, the frame 10 is provided on the underside of the fixed base 11 and the movable base 12. Thus, the frame 10 can be provided on the underside of the fixed base 11 and the movable base 12, rather than on the sides. By using this installation method, the width of the apparatus in the depth direction (X direction in Figure 5) can be reduced. By reducing the size in the depth direction in this way, the footprint area when the apparatus is installed can be reduced.

[0033] The present invention has been described in detail above based on embodiments, but it goes without saying that the present invention is not limited to the embodiments already described, and various modifications are possible without departing from the spirit of the invention. [Explanation of Symbols]

[0034] 1-4 Mold equipment 10 frames 11 Fixed base 12 Mobile Base 13 rails 14 Guide 15 cylinders 16 Plungers 20, 30 fixed type 21, 31 Mobile type 30a Fixed positioning key 31a Movable positioning key 40 Scale Guide 41 Machined surface 42 Guide fixture 50 scale

Claims

1. A frame having a first surface which is a vertical surface as one of the surfaces constituting the frame, A fixed base that is fixed to the first surface and supports the fixed type, A mobile base that supports the mobile unit, A rail fixed to the first surface of the frame, The movable base has a second surface on which it faces the first surface, and a guide that supports the movable base on the rail so as to move closer to and further away from the fixed base. The movable base is mounted to the frame in a cantilevered manner by the rails and guides without the use of tie bars.

2. The mold apparatus according to claim 1, wherein the fixed mold and the movable mold have a positioning key in which one of a pair of positioning recesses and protrusions is formed on the fixed mold and the other of a pair of positioning recesses and protrusions is formed on the movable mold.

3. The first surface has a machined surface formed with a predetermined degree of perpendicularity and flatness. The mold apparatus according to claim 1 or 2, wherein the movable base is provided with a dimensional reference line formed at a position relative to the machined surface.

4. The mobile base has a movable means for moving the mobile base, The mold apparatus according to any one of claims 1 to 3, wherein the movable means moves the movable base by pressing the center of the movable base.

5. The mold apparatus according to any one of claims 1 to 4, wherein the frame is arranged on the horizontal side of the movable base.

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