KR102407725B1 - Mold device - Google Patents

Abstract

The mold device is an injection molding machine; a locating ring through which the molten resin supplied from the injection molding machine passes, and a fixed mold in which a nozzle is disposed; a platen spaced apart from the injection molding machine and arranged to advance and retreat toward the injection molding machine; a platen advancing and retreating mechanism for advancing and retreating the platen in the first direction; a movable mold disposed on the platen to be slidable in a second direction and including a first region and a second region in which a plurality of cavities are formed; and a mold cylinder disposed on a mold to move the movable mold in a second direction, wherein the mold cylinder moves the movable mold so that the first region is positioned in the first cooling position and the second region is positioned in the injection position; , move the movable mold so that the first area is located at the injection position and the second area is located at the second cooling position.

Description

Mold device {Mold device}

The present invention relates to a mold apparatus.

Methods of manufacturing an article using a synthetic resin such as plastic as a raw material include injection molding using an injection mold, vacuum molding using air suction, and blow molding molding by air blow.

The method of injection molding can be performed by an injection mold apparatus, which is a device for manufacturing an injection product by injecting molten resin or the like into a cavity, which is a space within a mold, and then cooling the molten resin in the cavity in a mold.

The injection mold apparatus includes a mold having a cavity having the same shape as the shape of an injection product to be manufactured, and an injection molding machine for injecting a molten resin into the cavity. The mold may include a stationary mold and a movable mold coupled to and separated from the stationary mold, and a cavity may be formed between the stationary mold and the movable mold.

The molten resin injected into the cavity from the injection molding machine may be cooled and solidified in the cavity, and the cooled injection product may be taken out of the mold after the movable mold is separated from the stationary mold.

Such an injection mold apparatus may include an injection molding machine, a molten resin of the injection molding machine is selectively injected, and may include a pair of molds, each of the pair of molds may include a stationary mold and a movable mold, and the injection molding machine may include one In the case of sequentially injecting molten resin into a pair of molds with a time difference, a large number of injection moldings can be manufactured more quickly by using one injection molding machine and one pair of molds.

An example of an injection mold apparatus using a pair of molds sequentially as described above is an injection mold apparatus disclosed in Korean Patent Application Laid-Open No. 10-2020-0067718 A (June 12, 2020), and the injection mold apparatus is an injection mold apparatus. A molding machine, a molder spaced apart from the injection molding machine in a first direction and disposed to advance and retreat toward the injection molding machine, and advancing the molder to an injection position between the injection molding machine and the platen or retracting the molder from the injection position a platen advancing mechanism; A first mold having a first stationary mold and a first movable mold, a second mold having a second stationary mold and a second movable mold, and a connector connecting the first stationary mold and the second stationary mold, wherein the first a mold module elongated in a second direction intersecting the direction; and a mold moving mechanism connected to any one of the first and second fixed molds and the connector, and configured to move the mold module in a second direction intersecting the first direction, wherein the mold moving mechanism includes a first In mode, the mold module is moved to a first position where the first mold is an injection position and the second mold is a first cooling position, and the mold moving mechanism is in the second mode, wherein the first mold is a second cooling position The second mold moves the mold module to a second position which is the injection position, and the injection position is located between the first cooling position and the second cooling position.

Republic of Korea Patent Publication No. 10-2020-0067718 A (June 12, 2020)

In the injection mold apparatus of the prior art, each of a pair of molds constituting a mold module includes a movable mold and a fixed mold, and includes a connector for connecting the fixed molds of each of the pair of molds. Each of them is moved, so there is a problem in that the space occupied by the injection mold apparatus is large.

An object of the present invention is to provide a mold apparatus having a small number of parts and capable of being compact.

The mold apparatus according to this embodiment includes an injection molding machine; a locating ring through which the molten resin supplied from the injection molding machine passes, and a fixed mold in which a nozzle is disposed; a platen spaced apart from the injection molding machine and arranged to advance and retreat toward the injection molding machine; a platen advancing and retreating mechanism for advancing and retreating the platen in the first direction; a movable mold disposed on the platen to be slidable in a second direction and including a first region and a second region in which a plurality of cavities are formed; and a mold cylinder disposed on a mold to move the movable mold in a second direction, wherein the mold cylinder moves the movable mold so that the first region is positioned in the first cooling position and the second region is positioned in the injection position; , move the movable mold so that the first area is located at the injection position and the second area is located at the second cooling position.

The platen includes a cylinder mounting body on which the mold cylinder is mounted; and an upper guide block and a lower guide block spaced apart in a vertical direction are provided, and the movable mold may be moved in the second direction between the upper guide block and the lower guide block.

A linear movement guide may be disposed on the upper surface of the lower guide block.

A guide rail may be disposed on a lower surface of the upper guide block.

The cylinder mounting body may be provided with a center guide block formed at a position between the upper guide block and the lower guide block.

The center guide block may be shorter than the upper guide block and the lower guide block.

The center guide block may be provided with a liner through which the side of the movable mold is guided.

The center guide block may be provided with a stopper to which the movable mold is caught when the second region of the movable mold is in the second cooling position.

The mold apparatus may further include a limit switch disposed on the stopper.

The mold apparatus includes: a first mill plate provided with a first ejector pin that is moved together with the first region and ejects the first injection material accommodated in the cavity of the first region; a first mill plate cylinder for advancing and retreating the first mill plate in a first direction; a second mil plate moved together with the second region and provided with a second ejector pin for ejecting the second injection material accommodated in the cavity of the second region; and a second mil plate cylinder for advancing and retreating the second mil plate in the first direction.

The first push plate cylinder may be advanced when the first region is the first cooling position.

The second push plate cylinder may be advanced when the second region is the second cooling position.

According to an embodiment of the present invention, the structure is simpler and power consumption can be minimized than when the mold cylinder moves the fixed mold and the movable mold together.

In addition, the mold cylinder may be positioned between the movable mold and the mold for moving the movable mold, and there is an advantage in that compactness is possible and space utilization is high.

1 is a front view of a mold apparatus according to an embodiment of the present invention;
2 is a perspective view when the mold according to an embodiment of the present invention is opened;
3 is a side view when the movable mold according to an embodiment of the present invention is positioned in a first cooling position and an injection position;
4 is a cross-sectional view when the movable mold according to an embodiment of the present invention is positioned at the first cooling position and the injection position, and the first mill plate takes out the first injection product;
5 is a side view when the movable mold according to an embodiment of the present invention is positioned in an injection position and a second cooling position;
6 is a cross-sectional view when the movable mold according to the embodiment of the present invention is positioned at the injection position and the second cooling position, and the second mill plate takes out the second injection product;
7 is a cross-sectional view showing a mold plate, a mold cylinder, and a movable mold according to an embodiment of the present invention;
8 is a perspective view showing a mold cylinder and a movable mold according to an embodiment of the present invention;
9 is a cross-sectional view showing a mill plate cylinder and a movable mold according to an embodiment of the present invention;
10 is a perspective view when an injection product is taken out by a push plate of a push plate cylinder according to an embodiment of the present invention;
11 is a perspective view before assembly of the movable mold according to the embodiment of the present invention;
12 is a perspective view showing a cooling water channel according to an embodiment of the present invention;
13 is a perspective view illustrating a cooling flow path according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with drawings.

1 is a front view of a mold apparatus according to an embodiment of the present invention.

The mold apparatus includes an injection molding machine 1 , a mold 2 , a mold advance/retract mechanism 3 , and a mold 4 .

The injection molding machine 1 may supply molten resin to the mold 4 , and the injection molding machine 1 may be advanced or retracted toward the mold 4 .

The injection molding machine 1 may include an injection molding machine 11 .

The mold apparatus may further include a shelf 12 . The shelf 12 may be located below the mold 4 and the injection machine 11 . The shelf 12 allows the injection machine 11 to be positioned flush with the mold 4 .

The injection machine 11 may be disposed on the shelf 12 . The injection machine 11 may be disposed on the shelf 12 to move in the first direction (X). The injection machine 1 may advance and retreat toward the mold 4 . The injection machine 11 may inject the molten resin toward the stationary mold 5 of the mold 4 .

The injection machine 11 may include an injection machine body 13 . The injection machine 11 may include an injection table 14 having a passage through which the molten resin passes, and a screw 15 that is rotatably accommodated in the passage and transports the molten resin.

A hopper 16 for receiving raw materials may be disposed in the injection machine body 13 . A heater for heating the raw material to the molten resin may be built in the inside of the injection machine body 13 .

The injection stage 14 may be connected to the injection machine body 13 . The injection stage 14 may extend from the injection stage body 13 toward the stationary mold 5 .

The mold 2 may be spaced apart from the injection molding machine 1 . The mold 2 may be spaced apart from the injection molding machine 1 in the first direction (X). The mold 2 may be arranged to advance and retreat toward the injection molding machine 1 .

Hereinafter, for convenience of explanation, the movement of the mold 2 toward the injection molding machine 1 will be described as the advance of the mold 2, and the movement of the mold 2 in a direction away from the injection molding machine 1 is shown. It will be explained with the retraction of the mold plate (2).

The platen advancing and retreating mechanism 3 may be connected to the mold 2 and may linearly reciprocate the mold 2 . The platen advancing and retreating mechanism 3 may advance and retreat the mold 2 in the first direction (X).

The platen advancing and retreating mechanism 3 may include a driving source such as a cylinder or a motor, and at least one power transmission member connected to the driving source and the mold 2 . It goes without saying that the platen advancing and retreating mechanism 3 is not limited to the type of the driving source or the type of the power transmission member as long as it has a configuration capable of reciprocating the mold 2 in a straight line.

The mold 4 may be composed of a combination of a plurality of members.

The mold 4 may include a stationary mold 5 and a movable mold 6 .

The fixed mold 5 may be disposed to be fixedly positioned above the shelf 12 .

The movable mold 6 may be moved forward and backward together with the mold 2 . The movable mold 6 may be moved in the first direction (X) together with the mold plate 2 when the mold plate 2 is moved. The movable mold 6 may be movably disposed on the mold 2 in the second direction (Y, see FIGS. 2 , 3 and 5 ).

The first direction (X) and the second direction (Y) may be orthogonal. When the first direction X is a left-right direction, the second direction Y may be a front-rear direction, and when the first direction X is a front-rear direction, the second direction Y may be a left-right direction.

The mold apparatus may further include a mold supporter 9 for supporting the stationary mold 5 . The mold supporter 9 may be disposed to face the mold 2 . The mold supporter 9 may stand on the shelf 12 .

The mold apparatus may further include a stationary side clamp 92 disposed on the mold supporter 9 to clamp the stationary mold 5 .

The mold apparatus may further include a movable side clamp 94 for clamping the mold 2 .

2 is a perspective view when a mold according to an embodiment of the present invention is opened, and FIG. 3 is a side view when the movable mold according to an embodiment of the present invention is positioned at a first cooling position and an injection position, and FIG. 4 is The movable mold according to the embodiment of the present invention is located at the first cooling position and the injection position, and is a cross-sectional view when the first mill plate takes out the first injection product, and FIG. 5 is the movable mold according to the embodiment of the present invention at the injection position. and a side view when positioned at the second cooling position, and FIG. 6 is a cross-sectional view when the movable mold according to an embodiment of the present invention is positioned at the injection position and the second cooling position, and the second mill plate takes out the second injection .

A cylinder mounting body 81 , an upper guide block 82 , and a lower guide block 83 may be disposed on the mold 2 .

A mold cylinder 7 may be mounted on the cylinder mounting body 81 . The cylinder mounting body 81 may be mounted on the mold 2 . One surface 81a of the cylinder mounting body 81 may face the platen 2 , and one surface 81a of the cylinder mounting body 81 may be mounted on the mold 2 . The cylinder mounting body 81 may be moved in the first direction (X) together with the platen (2) when the platen (2) is moved in the first direction (X).

The upper guide block 82 and the lower guide block 83 may be spaced apart from each other in the vertical direction (Z). The upper guide block 82 and the lower guide block 83 may be parallel and each 82 , 83 may be orthogonal to the cylinder mounting body 81 .

Each of the upper guide block 82 and the lower guide block 83 may be provided with guide rods 82a and 83b that are inserted into guides formed in the fixed mold 5 to protrude.

The cylinder mounting body 81, the upper guide block 82, and the lower guide block 83 move in the first direction (X) together with the molder 2 when the mold 2 is moved in the first direction (X). And, it is possible to move the movable mold 6 in the first direction (X) movement.

The cylinder mounting body 81, the upper guide block 82, and the lower guide block 83 are the movable mold 6 when the movable mold 6 is moved in the second direction (Y) by the mold cylinder 7 . may guide movement in the second direction (Y).

The stationary mold 5 can be mold-closed with the movable mold 6 and support the movable mold 6 when the movable mold 6 is advanced in the first direction (X) in a fixed position.

When the movable mold (Y) is retracted in the first direction (X), the stationary mold (5) may be spaced apart from the movable mold (6) to be mold-opened with the movable mold (6).

The stationary mold 5 may include a mold closing part 52 . The mold closing part 52 may face between the upper guide block 82 and the lower guide block 83 .

When the movable mold 6 is moved in the first direction (X), the mold closing part 52 may be molded with a part of the movable mold 6 . The mold closing part 52 may face the movable mold 6 regardless of the position of the movable mold 6 in the second direction (Y).

The mold closing part 52 may be formed to protrude from the body 53 of the fixed mold 5 .

The size of the mold closing portion 52 may be approximately 1/2 of the size of the movable mold 6 .

A locating ring 54 (refer to FIG. 2) and a nozzle 56 (refer to FIGS. 4 and 6) through which the molten resin supplied from the injection molding machine 1 passes may be disposed in the stationary mold 5.

The locating ring 54 may be disposed on one surface of the body 53 of the stationary mold 5 . The stationary mold 5 may include a manifold through which the molten resin is guided. The manifold may be disposed inside the body 53 of the stationary mold 5 .

The stationary mold 5 may include a sprue for guiding the molten resin passing through the locating ring 54 to the manifold. The sprue may be disposed inside the body 53 of the stationary mold 5 and may form a passage through which the molten resin is supplied. The stationary mold 5 may include a heater disposed on the outer periphery of the sprue. The stationary mold 5 may further include a sprue fixing ring for fixing the sprue to the body 53 of the stationary mold 5 .

The nozzle 56 may be defined as an injection hole for spraying the molten resin supplied to the stationary mold 5 into the cavity of the movable mold 6 . Nozzles 56 may be provided in the manifold. A plurality of nozzles 56 may be provided. The number of nozzles 56 may be half of the number of cavities formed in the movable mold 6 to be described later. The nozzle 56 may be provided in the mold closing portion 56 of the stationary mold 5 to face the movable mold 6 .

The movable mold 6 may be arranged to slide in the second direction Y on the mold 2 as shown in FIGS. 3 and 5 .

The movable mold 6 may be moved in the second direction Y between the upper guide block 82 and the lower guide block 83 along the upper guide block 82 and the lower guide block 83 . The movable mold 6 may be protected by the upper guide block 82 and the lower guide block 83 between the upper guide block 82 and the lower guide block 83 .

A plurality of cavities C1 and C2 may be formed in the movable mold 6 .

The movable mold 6 may include a first area 6A and a second area 6B. The first area 6A and the second area 6B are areas in which the movable mold 6 is divided into two halves based on the center line C. As shown in FIG. When the first direction X is a left-right direction, the first area 6A may be a front area, and the second area 6B may be a rear area located behind the first area 6A. .

A plurality of first cavities C1 may be formed in the first region 6A.

A plurality of second cavities C2 may be formed in the second region 6B.

The shape of the first cabinet C1 and the shape of the second cavity C2 may be the same. The number of the first cabinets C1 may be the same as the number of the second cavities C2 .

The mold apparatus may include a mold cylinder 7 for moving the movable mold 6 in the second direction Y.

The mold cylinder 7 can be arranged on the platen 2 . The mold cylinder 7 may be directly mounted on the mold 2 , or may be mounted on a separate cylinder mounting body 81 mounted on the mold 6 .

As shown in FIG. 2 , the mold cylinder 7 may be mounted on a surface 81b of the cylinder mounting body 81 that faces between the upper guide block 82 and the lower guide block 82 .

When the mold cylinder 7 is mounted on the cylinder mounting body 81 , it may be positioned between the cylinder mounting body 81 and the movable mold 6 in the first direction (X). When the mold cylinder 7 is mounted on the cylinder mounting body 81 , it may be positioned between the upper guide block 82 and the lower guide block 82 in the vertical direction (Z).

As shown in FIGS. 4 and 6 , the mold cylinder 7 may be elongated in the second direction Y on the cylinder mounting body 81 . The mold cylinder 7 may linearly move the movable mold 6 in the second direction (Y) in a state in which it is arranged in parallel with the movable mold 6 .

The mold cylinder 7 may include a cylinder rod 71 (refer to FIGS. 4 and 6 ) that linearly moves in the second direction (Y).

The cylinder rod 71 may be parallel to the movable mold 6 .

The mold apparatus may further include a connector 72 (refer to FIGS. 3, 4, 5, and 6) for connecting the movable mold 6 and the cylinder rod 71 . The connector 72 may be elongated in the first direction X, as shown in FIGS. 4 and 6 . The connector 72 may include a rod connection part 73 to which the cylinder rod 71 is connected, and a mold connection part 74 connected to the movable mold 6 .

The mold cylinder 7 can selectively implement the first mode and the second mode.

The first mode may be a mode in which the first region 6A is moved to the first cooling position and the second region 6B is moved to the injection position P2. In the first mode, the mold cylinder 7 can move the movable mold 6 so that the first region 6A is positioned at the first cooling position and the second region 6B is positioned at the injection position P2. .

The second mode may be a mode in which the first region 6A is moved to the injection position P2 and the second region 6B is moved to the second cooling position P3. In the second mode, the mold cylinder 7 moves the movable mold 6 so that the first region 6A is positioned at the injection position P2 and the second region 6B is positioned at the second cooling position P3. can do it

The injection position P2 may be a position where the first region 6A or the second region 6B faces the nozzle 54 , and the first cooling position P1 and the second cooling position P3 are the first region (6A) or the second region 6B may be a position in which the nozzle 54 does not face.

The injection position P2 may be between the first cooling position P1 and the second cooling position P3 in the second direction Y.

The mold cylinder 7 may alternately perform the first mode and the second mode.

The first region 6A may be alternately positioned at the first cooling position P1 and the injection position P2. When the first region 6A is the injection position P2 , the molten resin supplied from the nozzle 54 may be supplied to the first cavity C1 of the first region 6A. When the first region 6A is the first cooling position P1, the molten resin in the first cavity C1 may be cooled.

The second region 6B may be alternately positioned at the injection position P2 and the second cooling position P3 . When the second region 6B is the injection position P2, the molten resin supplied from the nozzle 54 is

It may be supplied to the second cavity C2. When the second region 6B is at the second cooling position P3, the molten resin in the second cavity C2 may be cooled.

While the molten resin is supplied into the first cavity C1 of the first region 6A, the second region 6B may be cooled in the second cavity C2 at the second cooling position P3, and the second region While the molten resin is supplied into the second cavity C2 of 6B, the first region 6A may be cooled in the first cavity C1 at the first cooling position P1.

As shown in FIGS. 4 and 6 , the mold apparatus may include a first mill plate 100 , a first mill plate cylinder 110 , a second mill plate 120 , and a second mill plate cylinder 130 . have.

When the movable mold 6 moves in the second direction Y, the first mill plate 100 may be moved together with the first region 6A. A first ejector pin 102 for ejecting the first injection product K1 accommodated in the first cavity C1 of the first region 6A may be provided on the first mill plate 100 .

The first ejector pin 102 is provided to protrude from one surface of the first mill plate 100 and penetrates the pin through hole formed in the first area 6A of the movable mold 6 to form the first ejector pin in the first area 6A. The first injection product K1 accommodated in the first cavity C1 may be pushed out.

The first mill plate cylinder 110 may advance and retreat the first mill plate 100 in the first direction (X). As shown in FIG. 4 , the first push plate cylinder 110 may advance the first push plate 100 when the first region 6A is the first cooling position P1 . The first mill plate cylinder 110 may not advance the first mill plate 100 when the first area 6A is the injection position P2 .

The second mill plate 120 may be moved together with the second area 6A when the movable mold 6 moves in the second direction (Y). A second ejector pin 122 for taking out the second injection product K2 accommodated in the cavity C2 may be provided.

As shown in FIG. 6 , the second ejector pin 122 is provided to protrude from one surface of the second mill plate 120 , and penetrates through the pin through hole formed in the second region 6B of the movable mold 6 . The second injection product K2 accommodated in the second cavity C2 of the second region 6B may be pushed out.

The second mill plate cylinder 130 may advance and retreat the second mill plate 120 in the first direction (X). As shown in FIG. 6 , the second push plate cylinder 130 may advance the second push plate 120 when the second region 6B is the second cooling position P3 . The second push plate cylinder 130 may not advance the second push plate 120 when the second region 6B is the injection position P2 .

7 is a cross-sectional view illustrating a mold plate, a mold cylinder, and a movable mold according to an embodiment of the present invention, and FIG. 8 is a perspective view illustrating a mold cylinder and a movable mold according to an embodiment of the present invention.

The cylinder mounting body 81 may be provided with a center guide block 84 . The center guide block 84 may be formed to be positioned between the upper guide block 82 and the lower guide block 83 . The center guide block 84 may be formed to protrude from the surface 81b facing between the upper guide block 82 and the lower guide block 83 of the cylinder mounting body 81 .

The center guide block 84 may be elongated in the second direction Y on a surface of the upper guide block 82 facing the lower guide block 83 .

The length (protrusion width) of the center guide block 84 may be shorter than that of the upper guide block 82 and the lower guide block 83 . The length (protrusion width) of the center guide block 84 may be longer than the thickness of the mold cylinder 7 .

A pair of center guide blocks 84 may be provided on the cylinder mounting body 81 . The pair of center guide blocks 84 may be parallel. The pair of center guide blocks 84 may be spaced apart from each other in the vertical direction (Z). The pair of center guide blocks 84 may be spaced apart from each other at an interval greater than the thickness of the mold cylinder 7 .

Any one of the pair of center guide blocks 84 may be located above the mold cylinder 7 . The other of the pair of center guide blocks 84 may be located below the mold cylinder 7 .

The center guide block 84 may be provided with a liner 85 through which the side of the movable mold 6 is guided. The liner 85 may support a surface opposite to the cavity-formed surface of the movable mold 6 .

The center guide block 84 may be provided with a stopper 86 on which the movable mold 6 is hung when the second region 6B of the movable mold 6 is at the second cooling position P3.

The mold apparatus may further include a limit switch 87 disposed on the stopper 86 . The limit switch 87 may be switched to the movable mold 6 when the second region 6B of the movable mold 6 is at the second cooling position P3. Upon contact of the limit switch 87, the mold cylinder 7 may be stopped.

The mold apparatus may include a guide rail 88 (refer to FIG. 7 ) disposed on a lower surface of the upper guide block 82 . The guide rail 88 may be disposed on a surface of the upper guide block 82 toward the lower guide block 83 to be elongated in the second direction (Y). A pair of guide rails 88 may be provided. The pair of guide rails 88 may be disposed to be spaced apart from each other in the first direction (X). The pair of guide rails 88 may be parallel.

The pair of guide rails 88 may be disposed to protrude from the lower surface of the upper guide block 82 , and a sliding groove for sliding guide along the pair of guide rails 88 is formed on the upper surface of the movable mold 6 . can be

The mold apparatus may include a linear movement guide 89 disposed on the upper surface of the lower guide block 83 . The linear movement guide 89 may be elongated in the second direction (Y) on a surface of the lower guide block 83 facing the upper guide block 82 .

9 is a cross-sectional view showing a mill plate cylinder and a movable mold according to an embodiment of the present invention.

The movable mold 6 may include a movable disk 61 and a movable core 62 .

The movable disk 61 may have a rectangular shape.

The movable core 62 may be joined to the movable disk 61 , and a cavity may be formed in the movable core 62 .

The first mill plate cylinder 110 and the second mill plate cylinder 130 may be fastened to the movable mold 6 by a fastening member 112 .

Two first mill plate cylinders 110 may be disposed, and each of the first mill plate cylinders 110 can push out the first injection product K1 located in the first area 6A of the movable mold 6 . have.

Two second mill plate cylinders 130 may be disposed, and each second mill plate cylinder 130 can push out the second injection product K2 located in the second area 6B of the movable mold 6 . have.

The first mill plate cylinder 110 and the second mill plate cylinder 130 may be configured as a hydraulic cylinder or a gas cylinder.

The first mill plate cylinder 110 and the second mill plate cylinder 130 may include an advancing and retreating member 114 that advances and retreats in the first direction (X) during the ON operation.

The advancing and retreating member 114 of the first push plate cylinder 110 may be fastened to the first push plate 100 with a fastening member 116 such as a screw. The advancing and retreating member 114 of the second push plate cylinder 113 may be fastened to the second push plate 120 with a fastening member 116 such as a screw.

The movable mold 6 may include a guide rod 118 capable of guiding the advance and retreat of the first mil plate 100 and the second mil plate 120 .

The guide rod 118 may be fixed to each of the movable disk 61 and the push plate supporter 150 . The guide rods 118 may be disposed to penetrate the guide holes 119 formed in the first and second mill plates 100 and 120 .

The push plate supporter 150 may be spaced apart from the movable disk 61 in the first direction (X), and may be connected to the movable disk 61 by the guide rod 118 .

The first mil plate 100 and the second mil plate 120 may advance and retreat in the first direction (X) between the movable disk 61 and the mil plate supporter 150 .

10 is a perspective view when an injection molding product is taken out by a push plate of a push plate cylinder according to an embodiment of the present invention.

A plurality of the first ejector pin 102 and the second ejector pin 122 may be provided per one cavity, and may push the edge of the first injection product K1 or the second injection product K2.

11 is a perspective view of a movable mold according to an embodiment of the present invention before assembly, FIG. 12 is a perspective view showing a cooling water channel according to an embodiment of the present invention, and FIG. 13 is a cooling flow path according to an embodiment of the present invention. is a perspective view.

The movable core 62 may be composed of a combination of a plurality of members.

The movable core 62 may include a first movable core 62a facing the movable disk 61 and a second movable core 62b joined to the first movable core 62a and having a cavity formed therein.

The movable core 62 may include a cooling water channel P1 formed around the cavity. The cooling water channel P1 may be formed to be partitioned from the cabinet at the lower side of the cavity.

Water or a refrigerant may flow through the cooling conduit P1.

The movable core may include a cooling passage P2 formed around the cavity. The cooling passage P2 may be formed by being partitioned from each of the cavity and the cooling passage P1 . The cooling passage P2 may be formed in the movable core.

A gas such as air may flow in the cooling passage P2.

The operation of the mold apparatus configured as described above will be described.

First, the platen advancing mechanism 3 advances the mold 2 toward the stationary mold 5 side. When the mold 2 is advanced, the movable mold 6 can be brought closer to the stationary mold 5 with the mold 2 together, and the second area 6B of the movable mold 6 is closed with the stationary mold 5. do.

In a state in which the movable mold 6 and the stationary mold 5 are molded closed, the injection molding machine 1 can supply the molten resin to the stationary mold 5, and the molten resin supplied to the stationary mold 5 is fed to the nozzle 56 ) may be injected into the second cavity C2 of the second region 6B, and the molten resin injected into the second cavity C2 may be gradually cooled inside the second cavity C2.

After the injection molding machine 1 supplies the molten resin, the platen advancing mechanism 3 can move the mold 2 back in the opposite direction of the stationary mold 5 . When the mold 2 is retracted, the movable mold 6 can move away from the stationary mold 5 together with the mold 2 , and the movable mold 6 is mold-opened with the stationary mold 5 .

The second injection product K2 accommodated in the second cavity C2 of the second region 6B may be cooled by air.

After the movable mold 6 is molded with the stationary mold 5 , after a set time has elapsed, the mold cylinder 7 moves the movable mold 6 . The mold cylinder 7 moves the movable mold 6 so that the first area 6A is located at the injection position P2 and the second area 6B is located at the second cooling position P3.

After the positional movement of the movable mold 6 is completed, the platen advancing and retreating mechanism 3 advances the mold 2 toward the stationary mold 5 again. When the mold 2 is advanced, the movable mold 6 can be brought closer to the stationary mold 5 with the mold 2 together, and the first area 6A of the movable mold 6 is closed with the stationary mold 5. do.

In a state in which the movable mold 6 and the stationary mold 5 are molded closed, the injection molding machine 1 can supply the molten resin to the stationary mold 5, and the molten resin supplied to the stationary mold 5 is fed to the nozzle 56 ) may be injected into the first cavity C1 of the first region 6A, and the molten resin injected into the first cavity C1 may be gradually cooled inside the first cavity C1.

On the other hand, as described above, while the molten resin is supplied to the first cavity C1 of the first area 6A and cooled, the second area 6B located at the second cooling position P3 is the second injection product K2. ) can be continuously cooled and can harden quickly.

Thereafter, the platen advancing and retreating mechanism 3 may retract the mold 2 in the opposite direction of the fixed mold 5 again. When the mold 2 is retracted, the movable mold 6 can move away from the stationary mold 5 together with the mold 2 , and the movable mold 6 is mold-opened with the stationary mold 5 .

As described above, when the movable mold 6 is molded with the fixed mold 5, the second mill plate cylinder 130 can advance and retract the second mill plate 120, and the second mill plate 120 is the second The second injection product K2 cooled in the region 6B may be pushed out of the second cavity C2 of the second region 6B, and the second injection product K2 may be taken out.

After that, after the second push plate cylinder 130 retracts the second push plate 120, the mold cylinder 7 has a first area 6A at the first cooling position P1 and a second area 6B. The movable mold 6 is moved so as to be positioned at this injection position P2.

After the positional movement of the movable mold 6 is completed, the platen advancing and retreating mechanism 3 advances the mold 2 toward the stationary mold 5 again. When the mold 2 is advanced, the movable mold 6 can be brought closer to the stationary mold 5 with the mold 2 together, and the second area 6B of the movable mold 6 is closed with the stationary mold 5. do.

In a state in which the movable mold 6 and the stationary mold 5 are molded closed, the injection molding machine 1 can supply the molten resin to the stationary mold 5, and the molten resin supplied to the stationary mold 5 is fed to the nozzle 56 ) may be injected into the second cavity C2 of the second region 6B, and the molten resin injected into the second cavity C2 may be gradually cooled inside the second cavity C2.

On the other hand, as described above, while the molten resin is supplied to the second cavity C2 of the second region 6B and cooled, the first region 6A located at the first cooling position P1 is the first injection product K1. ) can be continued to cool, and can harden quickly.

Thereafter, the platen advancing and retreating mechanism 3 may retract the mold 2 in the opposite direction of the fixed mold 5 again. When the mold 2 is retracted, the movable mold 6 can move away from the stationary mold 5 together with the mold 2 , and the movable mold 6 is mold-opened with the stationary mold 5 .

As described above, when the movable mold 6 is molded with the fixed mold 5, the first mill plate cylinder 110 can advance and retract the first mill plate 100, and the first mill plate 100 is the first The first injection product K1 cooled in the region 6A may be pushed out of the first cavity C1 of the first region 6A, and the first injection product K1 may be taken out.

Thereafter, the mold apparatus may repeat the above process, and the mold apparatus may alternately take out the first injection product K1 and the second injection product K2.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains.

Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments.

The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1: injection molding machine 2: mold
3: platen advance mechanism 5: fixed mold
6: movable mold 6A: first area
6B: second area 7: mold cylinder
54: locating ring 56: nozzle
P1: first cooling position P2: injection position
P3: 2nd cooling position

Claims (10)

injection molding machine;
a locating ring through which the molten resin supplied from the injection molding machine passes, and a fixed mold in which a nozzle is disposed;
a platen spaced apart from the injection molding machine and arranged to advance and retreat toward the injection molding machine;
a platen advancing and retreating mechanism for advancing and retreating the platen in the first direction;
a movable mold disposed on the mold to be slidable in a second direction and including a first region and a second region in which a plurality of cavities are formed;
and a mold cylinder disposed on the mold to move the movable mold in a second direction,
The mold cylinder is
moving the movable mold so that the first area is located at the first cooling position and the second area is located at the injection position;
moving the movable mold so that the first region is located at the injection position and the second region is located at the second cooling position;
In the form
a cylinder mounting body to which the mold cylinder is mounted; and
An upper guide block and a lower guide block spaced apart in the vertical direction are provided,
The movable mold is moved in the second direction between the upper guide block and the lower guide block,
The cylinder mounting body is provided with a center guide block formed at a position between the upper guide block and the lower guide block,
The center guide block is shorter than the upper guide block and the lower guide block,
The center guide block is provided with a liner for guiding the side of the movable mold. delete The method of claim 1,
A mold device in which a linear movement guide is disposed on the upper surface of the lower guide block. The method of claim 1,
A mold device in which a guide rail is disposed on a lower surface of the upper guide block. delete delete 2. The method of claim 1
The center guide block is provided with a stopper to which the movable mold is caught when the second region of the movable mold is in a second cooling position. 8. The method of claim 7
The mold apparatus further comprising a limit switch disposed on the stopper. The method of claim 1,
a first push plate moved together with the first region and provided with a first ejector pin for ejecting the first injection product accommodated in the cavity of the first region;
a first mill plate cylinder for advancing and retreating the first mill plate in a first direction;
a second push plate moved together with the second region and provided with a second ejector pin for ejecting a second injection product accommodated in the cavity of the second region;
and a second mill plate cylinder for advancing and retreating the second mill plate in a first direction. 10. The method of claim 9,
The first mill plate cylinder is advanced when the first area is in the first cooling position,
The second mill plate cylinder is advanced when the second area is in the second cooling position.

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