JP5164203B2 - Foam resin molding machine - Google Patents

Description

  The present invention relates to a foamed resin molding machine for integrally molding insert parts such as mounting brackets and resin members together with a molding material made of foamed resin.

  As a foamed resin molding machine, an insert part such as a mounting bracket or a resin member is previously mounted in a mold, and a foamed resin raw material is filled into a cavity and molded integrally. As such a foamed resin molding machine, there is known a machine provided with a single die composed of an upper die and a lower die having a horizontal mating surface. In this case, since only one mold is mounted, the productivity is inferior because the next molding is performed after the insert part is mounted after the molded product is taken out. In addition, since the upper mold moves up and down, the operator will stand under the molding machine, but there are no spaces because there are columns of the molding machine around this area, so molded products and insert parts The work place is inferior from the operator. Moreover, since a shaping | molding site | part exists above an operator, there exists a problem that drain waste water splashes and a working environment is not favorable.

  Further, as a foaming resin molding machine, there is known a shuttle type foaming resin molding machine in which a setup process for mounting insert parts and a molding process for insert molding are performed separately as shown in FIG. 6-8. Yes. In this apparatus, a first setup station 71 and a second setup station 72 are provided on both sides of a molding station 70 having a mold clamping device. The first shuttle unit 73 moves between the molding station 70 and the first setup station 71. A second shuttle unit 74 moves between the molding station 70 and the second setup station 72. In the molding operation, for example, the first shuttle unit 73 removes the molded product from the second shuttle unit 74 during molding and mounts the next insert part. Then, the second shuttle unit 74 removes the molded product from the first shuttle unit 73 during molding and performs setup for mounting the next insert part.

However, in the shuttle type foamed resin molding machine as described above, since the first setup station 71 and the second setup station 72 are provided on both sides of the molding station 70, the equipment becomes large and large for installation. There is a problem of requiring space. In addition, the operator has to reciprocate about 10 m from side to side across the molding station 70, which places a heavy labor burden on the operator. In addition, there is a limit to the efficiency of work because it takes time to move people. Furthermore, there is a problem that two places for the molded product and the insert part are required on the left and right sides of the molding station 70.
JP 2004-188737 A

  The present invention has been made in order to provide a foamed resin molding machine that can reduce the burden on the operator, is small, and has high molding efficiency.

A foamed resin molding machine according to the present invention, which has been made to solve the above problems, includes a fixed die plate on which a fixed mold having a vertical mating surface is mounted, and a movement that abuts the fixed mold in a horizontal direction. In a foam resin molding machine comprising a moving die plate to which a mold is attached,
The fixed die plate is supported by a reversing mechanism that reverses the front and back of the movable die plate, and a fixed die that can be fitted with insert parts is attached to both sides of the fixed die plate, and the movable die is brought into contact with the movable die plate. The insert molding in the front side fixed mold and the removal of the molded product in the back side fixed mold opposite to the front side fixed mold and the setup work for mounting the insert parts are performed in parallel. To do.

  In the above-described invention, the reversing mechanism can have a rotating shaft that is rotated by a drive source, and a raw material filling machine is mounted on the moving die plate, and the moving die plate is placed horizontally with respect to the fixed die plate. It can be supported by a moving mechanism to be moved. Moreover, the mounting function of an insert part can be provided in a fixed mold | type, and the removal | desorption mechanism of an insert member can also be equipped in a foaming resin molding machine.

  In the present invention, the fixed die plate is supported by a reversing mechanism capable of reversing the front and back with respect to the horizontally moving movable die plate, and a fixed die having vertical mating surfaces on both front and back surfaces of the fixed die plate is mounted. As a result, insert molding is performed with the front surface side fixed die against which the movable die is in contact, and the back side fixed die on the opposite side faces the operator to take out the molded product and set up the next insert part. Can be performed in parallel.

  Therefore, it is not necessary to provide two setup stations on the left and right sides of the molding station as in the conventional shuttle type foamed resin molding machine, so that the lateral width of the molding machine can be reduced to 1/3. Moreover, since insert molding in the front surface side fixed mold and removal of the molded product and setup work in the back surface side fixed mold can be performed simultaneously, the efficiency of the molding process can be improved. In addition, since the operator can work at a predetermined place on the back side of the die plate and does not have to move left and right, the burden on the operator can be greatly reduced and a large work space can be provided. There is no need to secure. Further, since the place for the molded product or the insert part can be set near one place in the vicinity of the operator, it is not necessary to provide two places as in the shuttle type foamed resin molding machine. Furthermore, since the operator can work on the back side of the die plate, there are many advantages that the waste water is not applied and the work can be performed in a sanitary manner.

Hereinafter, embodiments of the present invention will be described.
1 to 3 are views showing a foamed resin molding machine according to the present invention, wherein 1 is a fixed die plate and 2 is a moving die plate that moves horizontally. A fixed die 3 having a vertical alignment surface 31 is mounted on both the front and back surfaces of the fixed die plate 1, and a movable die having a vertical alignment surface 41 on the surface facing the fixed die plate 1 of the movable die plate 2. 4 is installed. The surface side of the fixed die plate 1 refers to the surface side facing the movable die plate 2, and the back surface side of the fixed die plate 1 refers to the surface side opposite to the surface side.

  The fixed die plate 1 is supported by a reversing mechanism having a vertical rotation shaft 5 and can be turned upside down by 180 ° with respect to the moving die plate 2 by a driving source (not shown). That is, when the fixed die plate 1 is rotated front and back, the fixed die 3 on the front surface side and the fixed die 3 on the back surface side of the fixed die plate 1 can be alternately replaced. An operator is waiting on the back side of the fixed die plate 1. The reversing mechanism may rotate 180 ° forward or reverse, or may rotate 180 ° in the same direction. Further, the reversing mechanism is not limited to the one described above, and any reversing mechanism may be used as long as it can reverse the fixed die plate 1 such as a horizontal axis, an oblique axis, or a turntable.

  Since the fixed die plate is turned upside down, the operator does not need to move in a wide range. Therefore, a place for a molded product or an insert part can be provided on the back side of the moving die plate, that is, in the vicinity of the operator. In other words, one place is enough.

  The moving die plate 2 is supported by a moving mechanism 6 that moves horizontally with respect to the fixed die plate 1. That is, the upper part of the movable die plate 2 is supported by the horizontal rail 61, and the link bar 62 is attached to the opposite surface (hereinafter referred to as the back surface) on which the movable die 4 is mounted. Actuated by a drive source 63. Therefore, the movable die plate 2 can be horizontally moved on the horizontal rail 61 via the link rod 62 by the drive source 63 in a direction approaching or separating from the fixed die plate 1. The horizontal movement mechanism is not limited to the one described above, and a mechanism that can move horizontally relative to the fixed die plate 1 such as a toggle link mechanism and a ball screw mechanism can be used.

  Inside the fixed mold 3 and the movable mold 4 are steam chambers 32 and 42, and service nozzles 33 and 43 are disposed inside the steam chambers 32 and 42. Steam or cooling water is supplied.

  A raw material filling machine 21 is inserted on the back surface of the movable die plate 2, and a foamed resin raw material is filled into a cavity formed by the fixed mold 3 and the movable mold 4 from the raw material filling machine 21. This is because the material filling machine 21 cannot be inserted near the center of the fixed die plate 1 because the fixed molds 3 are mounted on both the front and back surfaces of the fixed die plate 1. It is a thing.

  In the foamed resin molding machine as described above, a mounting function for holding the insert member in the fixed mold 3 can be provided. As a mounting function, a recess for mounting an insert part can be provided in the mold, or a suction hole for vacuum-sucking the insert part can be provided. Further, a detaching mechanism for detaching the insert member from the fixed mold can be provided. As the desorption mechanism, when the insert member is a magnetic material such as iron, it can be desorbed electromagnetically using a solenoid, or can be desorbed so as to be held and detached by a cylinder or the like.

  In order to insert-mold a molded body using the above-described foamed resin molding machine, an operator mounts an insert part on a rear surface side fixed mold 3 of the fixed die plate 1 at a required position. Thereafter, the fixed die plate 1 is turned upside down by a reversing mechanism, and the movable die 4 is horizontally moved and brought into contact with the fixed die 3 on the front side. The raw material is filled from the raw material filling machine 21 into the cavity formed by the fixed mold 3 and the movable mold 4. Next, by introducing steam from the vapor chambers 32 and 43 into the cavity, the raw material is heated and foam-welded, so that a desired molded body can be insert-molded.

  Thereafter, cooling water is sprayed from the service nozzles 33 and 43 to the steam chambers 32 and 42 to cool the fixed mold 3 and the movable mold 4, thereby cooling the molded body in the cavity. After the cooling is completed, the movable die plate 2 is separated from the fixed die plate 1 (FIG. 4), and then the fixed die plate 1 is reversed by the reversing mechanism and the front surface side fixed mold 3 is rotated to the back surface side (FIG. 5). Thus, the operator can take out the molded product 7 and attach a new insert part 8 to the fixed mold 3. As described above, by reversing the fixed mold 3 upside down, insert molding and removal of the molded product 7 and set-up work for mounting the insert component 8 can be performed simultaneously in parallel.

It is a top view of the foaming resin molding machine of this invention. It is a side view of the foaming resin molding machine of this invention. It is a rear view of the foaming resin molding machine of this invention. It is a top view of the foaming resin molding machine explaining the rotation state of a fixed die plate. It is a top view of the foaming resin molding machine which shows the state by which the molded article was turned to the back side. It is a front view of a shuttle type foaming resin molding machine. It is a side view of a shuttle type foaming resin molding machine. It is a top view of a shuttle type foaming resin molding machine.

Explanation of symbols

  1 fixed die plate, 2 moving die plate, 3 fixed type, 4 moving type, 5 reversing mechanism, 31 mating surface, 41 mating surface

Claims (5)

In a foamed resin molding machine comprising: a fixed die plate mounted with a fixed mold having a vertical mating surface; and a movable die plate mounted with a movable mold that comes into contact with the fixed mold from the horizontal direction.
In addition to supporting the fixed die plate with a reversing mechanism that reverses the front and back with respect to the moving die plate, attach fixed molds that can be fitted with insert parts on both sides of the fixed die plate,
Insert molding in the front side fixed mold abutted against the movable mold, and removal of the molded product in the back side fixed mold opposite to the front surface side fixed mold and setup work for mounting the insert parts are performed in parallel. A foamed resin molding machine characterized by the above.   The foamed resin molding machine according to claim 1, wherein the reversing mechanism has a rotating shaft rotated by a driving source.   3. The foamed resin molding machine according to claim 1, wherein a raw material filling machine is mounted on the moving die plate and supported by a moving mechanism that horizontally moves the moving die plate with respect to the fixed die plate.   The foamed resin molding machine according to any one of claims 1 to 3, wherein a mounting function of an insert part is provided in the fixed mold.   The foamed resin molding machine according to any one of claims 1 to 4, further comprising an insert member desorption mechanism.

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