Rotatable mold apparatus
In an embodiment, a rotatable mold apparatus includes a first mold disposed on a first base structure to be integrally moved together with the first base structure, a second mold disposed on a second base structure to be integrally moved together with the second base structure in order to couple to or decoupled from the first mold, a drive device configured to rotate the first mold and the second mold together when the first mold and the second mold are coupled to each other and support devices rotatably supporting the first mold and the second mold on the first base structure and the second base structure, respectively.
1 . A rotatable mold apparatus comprising:
a first mold disposed on a first base structure and configured to move together with the first base structure;
a second mold disposed on a second base structure and configured to move together with the second base structure in order to couple to or decouple from the first mold;
a drive device installed between the first mold and the first base structure and connected to the first mold; and
support devices rotatably supporting the first mold and the second mold on the first base structure and the second base structure, respectively,
wherein the drive device is configured to rotate the first mold relative to the first base structure in order to rotate the first mold and the second mold coupled to the first mold when the first mold and the second mold are in a mold-closed state,
wherein the drive device is configured to rotate the first mold and the second mold about a central point, which is the central point of an entirety of the first mold and the second mold in the mold-closed state,
wherein the first mold and the second mold are set to a mold setting angle at which the first and second molds are rotatable by the drive device, and, while the set mold setting angle is maintained, the first mold and the first base structure are movable together, and the second mold and the second base structure are movable together, thereby opening and closing the first mold and the second mold, and
wherein the drive device comprises:
a screw shaft horizontally disposed to be supported on the first base structure by a bracket, the screw shaft configured to receive a rotating force;
a nut engaged with the screw shaft;
a moving block fixed to the nut to move together with the nut;
a guide rail disposed on the first base structure and parallel to the screw shaft, wherein the moving block is coupled to the guide rail such that a movement of the moving block is guided by the guide rail; and
a pivot shaft disposed on the first mold, wherein the pivot shaft coupled to the moving block allows the first mold to rotate in response to the movement of the moving block.
2 . The rotatable mold apparatus of claim 1 ,
wherein the first mold comprises a lower mold to be vertically moved up and down,
wherein the second mold comprises an upper mold to be vertically moved up and down, and
wherein a material to be molded is insertable between the lower mold and the upper mold when the first mold and the second mold are decoupled from each other.
3 . The rotatable mold apparatus of claim 2 , wherein the first base structure comprises a first base plate horizontally disposed below the first mold, and wherein the second base structure comprises a second base plate horizontally disposed above the second mold.
4 . The rotatable mold apparatus of claim 1 , wherein the support devices comprise:
a first support device disposed between the first base structure and the first mold to rotatably support the first mold on the first base structure; and
a second support device disposed between the second base structure and the second mold to rotatably support the second mold on the second base structure.
5 . The rotatable mold apparatus of claim 4 , wherein the first support device comprises:
a first support block fixed to the first base structure;
a first guide block fixed to the first support block;
a first rotating block fixed to the first mold and coupled to the first support block and the first guide block; and
bearings interposed between the first rotating block and the first support block and between the first rotating block and the first guide block, the bearings to support the first rotating block while the first rotating block slides on the first support block.
6 . The rotatable mold apparatus of claim 5 , wherein a support surface of the first support block comprises a curved surface having a shape of a concave arc, wherein a plurality of first bearings is arranged on the concave arc along the support surface so that at least a portion of each of the first bearings protrudes from the support surface, and wherein the first rotating block comprises a curved slide surface having a shape of a convex arc such that the first rotating block slides in a state in which the curved slide surface thereof is seated on the plurality of first bearings.
7 . The rotatable mold apparatus of claim 6 , wherein the first rotating block comprises an arc-shaped guide groove, and wherein the first guide block comprises a second bearing to be inserted into and coupled to the arc-shaped guide groove so as to support the first rotating block.
8 . The rotatable mold apparatus of claim 5 , further comprising an indicator on the first guide block and a scale on the first mold such that a pointer of the indicator indicates a graduation of the scale corresponding to an angle to which the first mold is currently rotated.
9 . The rotatable mold apparatus of claim 8 , wherein the indicator has a hole through which a bolt extends and the first mold has a fastening hole to which the bolt is fastened such that, in a state in which the rotation of the first mold and the second mold is completed, the first mold is fixed to the indicator by the bolt and fastened to the fastening hole of the first mold.
10 . The rotatable mold apparatus of claim 4 , wherein the second support device comprises:
a second support block fixed to the second base structure;
a second guide block fixed to the second support block;
a second rotating block fixed to the second mold and coupled to the second support block and the second guide block; and
bearings interposed between the second rotating block and the second support block and between the second rotating block and the second guide block, the bearings to support the second rotating block while the second rotating block slides on the second support block.
11 . The rotatable mold apparatus of claim 10 , wherein a support surface of the second support block comprises a curved surface having a shape of a concave arc, wherein a plurality of first bearings is arranged on the concave arc along the support surface so that at least a portion of each of the first bearings protrudes from the support surface, and wherein the second rotating block comprises a curved slide surface having a shape of a convex arc such that the second rotating block slides in a state in which the curved slide surface thereof is seated on the plurality of first bearings.
12 . The rotatable mold apparatus of claim 11 , wherein the second rotating block comprises an arc-shaped guide groove, and wherein the second guide block comprises a second bearing to be inserted into and coupled to the arc-shaped guide groove so as to support the second rotating block.
13 . The rotatable mold apparatus of claim 10 , further comprising an indicator on the second guide block and a scale on the second mold such that a pointer of the indicator indicates a graduation of the scale corresponding to an angle to which the second mold is currently rotated.
14 . The rotatable mold apparatus of claim 13 , wherein the indicator has a hole through which a bolt extends and wherein the second mold has a fastening hole to which the bolt is fastened such that, in a state in which a rotation of the first mold and the second mold is completed, the second mold is fixed to the indicator by the bolt extending through the hole of the indicator and fastened to the fastening hole of the second mold.
15 . The rotatable mold apparatus of claim 1 , further comprising:
a handle on the screw shaft to apply a rotating force thereto; or
a motor shaft connected to the screw shaft to apply a rotating force thereto.
16 . The rotatable mold apparatus of claim 1 , wherein the moving block has a vertically extending recess, and wherein the pivot shaft is rotatably inserted into the recess of the moving block and is movable along the vertically extending recess of the moving block.
17 . A rotatable mold apparatus comprising:
a first mold disposed on a first base structure and configured to move together with the first base structure;
a second mold disposed on a second base structure and configured to move together with the second base structure in order to couple to or decouple from the first mold;
a drive device installed between the first mold and the first base structure and connected to the first mold; and
support devices rotatably supporting the first mold and the second mold on the first base structure and the second base structure, respectively,
wherein the drive device is configured to rotate the first mold relative to the first base structure in order to rotate the first mold and the second mold coupled to the first mold when the first mold and the second mold are in a mold-closed state,
wherein the drive device is configured to:
rotate the first mold and the second mold about a central point, which is the central point of an entirety of the first mold and the second mold in the mold-closed state, and
set the first mold and the second mold to a mold setting angle at which the first mold and the second mold are rotated,
wherein the rotatable mold apparatus is configured to maintain the set mold setting angle while the first mold and the first base structure move together, and the second mold and the second base structure move together so that the first mold and the second mold open and close, and
wherein the drive device comprises:
a screw shaft horizontally disposed to be supported on the first base structure by a bracket, the screw shaft configured to receive a rotating force;
a nut engaged with the screw shaft;
a moving block fixed to the nut to move together with the nut;
a guide rail disposed on the first base structure and parallel to the screw shaft, wherein the moving block is coupled to the guide rail such that a movement of the moving block is guided by the guide rail; and
a pivot shaft disposed on the first mold, wherein the pivot shaft coupled to the moving block allows the first mold to rotate in response to the movement of the moving block.
18 . The rotatable mold apparatus of claim 17 ,
wherein the support devices comprise a first support device and a second support device,
wherein the first support device is disposed between the first base structure and the first mold to rotatably support the first mold on the first base structure, and
wherein the first support device comprises a first support block fixed to the first base structure, a first guide block fixed to the first support block, a first rotating block fixed to the first mold and coupled to the first support block and the first guide block and bearings interposed between the first rotating block and the first support block and between the first rotating block and the first guide block, the bearings to support the first rotating block while the first rotating block slides on the first support block.
19 . The rotatable mold apparatus of claim 17 , wherein the pivot shaft is horizontally disposed in a transverse direction below the first mold, and wherein both ends of the pivot shaft are supported on a bottom portion of the first mold by brackets.
20 . A rotatable mold apparatus comprising:
a first mold disposed on a first base structure and configured to move together with the first base structure;
a second mold disposed on a second base structure and configured to move together with the second base structure in order to couple to or decouple from the first mold;
a drive device installed between the first mold and the first base structure and connected to the first mold; and
support devices rotatably supporting the first mold and the second mold on the first base structure and the second base structure, respectively,
wherein the drive device is configured to rotate the first mold relative to the first base structure in order to rotate the first mold and the second mold coupled to the first mold when the first mold and the second mold are in a mold-closed state,
wherein the drive device is configured to:
rotate the first mold and the second mold about a central point, which is the central point of an entirety of the first mold and the second mold in the mold-closed state, and
set the first mold and the second mold to a mold setting angle at which the first mold and the second mold are rotated,
wherein the rotatable mold apparatus is configured to maintain the set mold setting angle while the first mold and the first base structure move together, and the second mold and the second base structure move together so that the first mold and the second mold open and close,
wherein the drive device comprises:
a screw shaft horizontally disposed to be supported on the first base structure by a bracket, the screw shaft configured to receive a rotating force;
a nut engaged with the screw shaft;
a moving block fixed to the nut to move together with the nut;
a guide rail disposed on the first base structure and parallel to the screw shaft, wherein the moving block is coupled to the guide rail such that a movement of the moving block is guided by the guide rail; and
a pivot shaft disposed on the first mold, wherein the pivot shaft coupled to the moving block allows the first mold to rotate in response to the movement of the moving block, and
wherein the moving block has a vertically extending recess, and the pivot shaft is rotatably inserted into the recess and is movable along the recess.