JPH01163048A - Apparatus for molding foamed resin - Google Patents

Abstract

PURPOSE:To automate the handling of a product and to shorten a product taking-out/ receiving control time to a large extent, by a method, a holding member of the product M released and extruded from a mold is mounted in a freely detachable manner in opposed relation to a product arranging stand and an extrusion mechanism is arranged at the moving position of a product holding part. CONSTITUTION:A product holding member 20 for holding the product M released and extruded from a mold 1 by an ejection pin and moving said product from the opening surface position of the mold to detach the same is mounted at an opening surface position in a freely detachable manner, and a product arranging stand 30 having to stock the product M and the extrusion mechanism 40 arranged in opposed relation to the product arranging stand 30 and extruding the product are arranged at the moving position of the product holding member 20 to constitute a foamed resin molding apparatus. The aforementioned extrusion mechanism 40 arranged in opposed relation to the product arranging stand 30 has a cylinder 42 equipped with a push plate 41 and extrudes the product M mounted on the product holding member 20 to the product arranging stand 30 in an arranged state. This mechanism 40 is arranged directly under the mold 2 to contribute to the contraction of an anchor space.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention automatically simplifies the collection and handling of products released from molding molds in molding machines that manufacture foamed resin products such as foamed polystyrene molded products. The present invention relates to a foam resin molding device for

[Conventional technology]

-a, to manufacture expanded polystyrene molded products, expandable thermoplastic resin particles (hereinafter referred to as beads) are pre-foamed using an open/close mold, or filled into the cavity in the closed mold without pre-foaming. Usually, the material is heated and molded by injecting steam, then cooled, the mold is opened, and the material is dried after being released from the mold.

In this conventional foam molding machine, molds are provided in a movable steam chamber and a fixed steam chamber, and the molds are operated to control the distance between the two molds to obtain a predetermined foaming pressure. ,
The abutting surfaces of the movable side steam chamber and the stationary side steam chamber where both molding molds are located, that is, the parting surface, were opened to perform the work of removing and releasing the product from the molding molds.

[Problem that the invention seeks to solve]

Therefore, in conventional molding operations, products must be handled, collected and adjusted manually, which is complicated and time-consuming.
Moreover, the installation area of the entire device became large due to the extra space needed to open and handle the parting surface, and the process of opening the mold also delayed work efficiency, which was unsatisfactory.

The present invention aims to accurately eliminate these conventional drawbacks by automating the handling of the product removed from the molding die, greatly shortening the product removal and storage adjustment time, and making handling easier and safer. It is an object of the present invention to provide a foam molding device that is simple in construction and compact, and is capable of processing processing operations for foamed polystyrene molding with a high level of efficiency.

[Means for solving problems]

In the present invention, male molds, female molds, or molding molds of female molds are disposed facing each other so as to be openable and closable, a cavity is formed in the mold under pressure retention, and the raw material is filled into the cavity and heated and foamed. The product M is peeled and extruded from the mold 1 of the mold on one of the movable sides.
A product holding member 20 for holding and removing the product by moving from the opening surface position of the molding die is removably inserted into the opening surface position, and a product alignment table 30 on which the product M is to be stocked; This foamed resin molding apparatus is disposed opposite to the alignment table 30 and has an extrusion mechanism 40 for extruding the product at a moving position of the product holding section 20.

[For production]

In this foamed polystyrene molding device, when raw materials (beads) are filled into a cavity 3 in a molding die 1゜2 and heated, a molded product is formed by the steam pressure and the foaming gas pressure of the beads. In addition to adjusting the opening and closing operations of the molding die by controlling the drive unit that controls the molding, the opening and closing operations of the molding die are optimally performed under ideal conditions, allowing the production of polystyrene foam molded products to be carried out safely and efficiently. After the molding die is released, the product M that has been extruded and peeled from the molding die 1 by the eject bin 50 moves upward to the opening surface of the mold, that is, the parting surface position, and is pushed into the product holding member 20 where it waits for insertion. When held between the support tongues 22, 22, the product holding member 20 descends along the column 23 and stops at a position facing the product alignment table 30. Next, the push-out mechanism 40 is activated, and the bushing plate 41 It extrudes the product M in the product holding member 20 and carries it in while arranging it on the product alignment table 30 to efficiently collect the product.It does not require any acquisition and has a neat function that allows automatic handling of molded products. There is no need to increase the free space of the mold, and recovery work can be carried out efficiently and safely.

[Embodiment] In an embodiment of the present invention, a female mold 1 is provided in a steam chamber 11 on a fixed side, and a male mold 2 is provided in a steam chamber 22 on a movable side opposite to this. a first slidably disposed on the drive part, e.g. a drive cylinder or motor (not shown);
To explain with an example, a male mold, a female mold, or molding molds 1.2 of female molds are disposed facing each other so as to be freely openable and closable at a position of stroke i1, and a cavity 3 is formed in the mold under a holding pressure state. In a device that molds a product by filling the cavity 3 with raw materials and heating and foaming them, the support plate 12 that is fitted into the steam chamber 11 of the mold l on one of the fixed sides is attached to the opening surface of the mold. A clamp frame 4 which is provided at a position opposite to the parting surface and abuts against the support plate 12 is provided so as to be removable, and a clamper 5 which is pressed against the clamp frame 4 is removably connected to the machine frame 13. established,
Further, a product holding member 20 for holding the product M peeled and extruded from the molding die 1 by the eject bin 50 and moving from the opening surface position of the molding die to remove it can be freely inserted into and removed from the opening surface position. At the same time, a product alignment table 30 on which the products M are to be stocked and an extrusion mechanism 40 disposed opposite to the product alignment table 30 for extruding the products are disposed at the movement position of the product holding member 20. This is a resin molding device.

In this case, the product holding member 20 consists of a frame 21 into which the product M can be inserted, and product support tongues 22.2 made of an elastic material.
2 facing each other, the chain wheel 25 is mounted on a chain wheel 25 which is rotated by a motor or transmission driven drive unit 24 which can be rotated in forward and reverse directions, and is arranged on a support 23 so as to be able to rise and fall freely. It is connected to a transmission member and is equipped to be able to reciprocate along the pillar 23, but if there is space, it can also be of a type that moves horizontally. Further, the product alignment table 30 is used for product stocking and is equipped with a brush 31 for receiving and pressing the products M, and has a form that prevents the products from falling off and facilitates sequential movement of the products. A movable trolley with wheels 32 or casters that can move toward and away from the moving position is used to simplify product removal, but if it is a continuous product line, a conveyor type may also be used, or the product M can be transported sequentially. You can also choose to do it all at once. Furthermore, the extrusion mechanism 40 provided opposite to the product alignment table 30 includes a cylinder 42 equipped with a bushing plate 41, and aligns the products M mounted on the product holding member 20 on the product alignment table 30. It is placed directly under the molding die 2 and is useful for reducing the installation space.

The eject pin 5o has an extrusion pin 52 via a spring 51, and is disposed opposite to an extrusion plate 53 that reciprocates, and releases the product M from the molding die 2 when the mold is opened, and its stroke l is adjusted. Installation position N5 with bushing member 54
This can be done in 5.

The clamp frame 4 includes a flange portion 4 on the outer periphery.
It is a hollow cylindrical body with a shape of 1, which is inserted into and removed from the opening of the machine frame 13, and can be fixed by pressing at a plurality of places with the clamper 5, respectively. The clamper 5 uses a lever piece with both ends to hold the lock bolt 1.
5, it is rotatably and detachably mounted on the machine frame 13, and a spherical washer 51 is interposed therebetween. Further, the support plate 12 is a rectangular plate and the support plate 12 is a rectangular plate.
It serves as a lid for sealing the opening of the steam chamber 11, and is sandwiched between the clamp frame 4 and the opening surface of the steam chamber 11 so that they can be fixed by pressure contact.

In the figure, 9 is a parting surface, 1O is a moving frame, 27 is a bracket, 28 is a grill knob, 29 is a mounting screw, 43
is a holder, and 44 is a joint part.

In addition, in the molding die 1.2, the molding die 2 in the movable side steam chamber 22 including the movable frame 10 is switched from high-speed mold closing to low-speed mold closing before the mold closing is completed, and the mold closing is completed. Position, this is the signal to move to the raw material filling process, and the product is caught between the male and female molds, and when the molds stop closing at low speed or do not reach the specified position within a certain time, the molds are opened and the product is caught. A position where an activation signal for dropping the product is issued and the product inside the female mold are ejected into the eject bin 50.
the eject position, which controls the ejection timing, the change position, which switches from low-speed mold opening to high-speed mold opening, and the mold opening completion position, just before mold opening is completed, and the mold opening completion position.In the case of a product that has particularly poor mold release, the product is first placed in the male mold. In order to attach the mold, open the mold for a while and close it again, and then attach the product to the female mold and release it like a catch ball to make it easier to release the mold using the eject pin 50. It is operated by setting the movement position of the product holding member 20 or the extrusion timing of the products M to the alignment table 30.

In any case, when performing in-mold molding with the male and female molding molds 1.2 facing each other so as to be openable and closable, the interval between the remolding molds should be adjusted to indicate when the mold is closed, cranking, ejecting, and molding. The data of the completed product collection work is detected by an analog sensor, converted into an analog signal manually, converted to a digital signal by an A/D converter, and compared with internal fixed data in a data processing section to move the mold. The opening and closing operations of the molding die are adjusted by controlling a driving unit such as a driving cylinder or a motor.

〔Effect of the invention〕

In the present invention, when a cavity in a mold is filled with a raw material and heated and foamed to form a product and taken out, the product peeled and extruded from the mold is held and the product is held at the opening surface position of the mold. A product holding part for moving and removing the product is removably inserted into the opening surface position, and a product arranging table for stocking the product and a product holder arranged opposite to the product arranging table for pushing out the product. By disposing the extrusion mechanism at the moving position of the product holding section, the work of tidying up and collecting the products released from the molding mold can be done automatically without requiring human labor, resulting in efficient molding work without any hindrance. It is possible to perform production without worrying about contaminating or damaging the product, and it is easy to automate the collection of released products, which greatly reduces the time required to take out and store products, as well as change and adjust mold settings, and moreover, makes effective use of space. It is easy to handle and highly safe because the work can be carried out with The number of man-hours involved in making changes is also easy and can be done quickly.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a cutaway plan view of the mold separated state, FIG. 2 is a cutaway plan view of the molded product taken out state,
3 is a partially cutaway side view thereof, FIG. 4 is a partially cutaway plan view taken along line 1-1 in FIG. 3, and FIG. 5 is a partially enlarged detailed view thereof. 1.2... Molding mold, 3... Cavity, 4...
Clamp frame, 41... Flange portion, 5... Clamper, 9... Parting surface, 10... Moving frame, 11° 22... Steam chamber, 12... Support plate, 13... - Machine frame, 20... Product holding member, 21... Frame body, 22... Product supporting tongue piece, 26...
・Chain, 30...Product alignment table, 31...Brush,
40... Extrusion mechanism, 41... Pusher plate, 5
0...Eject pin.

Claims (5)

[Claims] (1) Male mold, female mold or female molds (1) (2)
A cavity (3) is formed in a mold under a pressurized state by opposingly disposed so as to be openable and closable, and a product is formed by filling the cavity (3) with a raw material and heating and foaming the product. A product holding member for holding the product (M) peeled and extruded from the molding die (1) on the movable side of the molding die and removing it by moving from the opening surface position of the molding die. (20) is removably inserted into the opening surface position, and a product alignment table (30) on which the products (M) are to be stocked.
and an extrusion mechanism (40) disposed opposite to the product alignment table (30) for extruding the product.
0) A foamed resin molding apparatus characterized in that it is arranged at the moving position of 0). (2) The product holding member (20) consists of a frame (21) into which the product (M) can be inserted, and the product support tongue piece (2) is made of an elastic material.
2) The molding apparatus according to claim 1, wherein the molding apparatus is provided with (22) facing each other and is arranged on a support column (23) so as to be able to rise and fall freely. (3) The product alignment table (30) is equipped with a brush (31) for supporting the product (M), and is arranged so as to be able to approach and separate from the moving position of the product holding section (20). 3. The molding apparatus according to claim 1, which is a movable trolley with wheels (32). (4) The extrusion mechanism (40) has a push plate (4).
Claims 1 to 3 are provided with a cylinder (42) equipped with a cylinder (42), and extrude the products M mounted on the product holding part (20) onto a product alignment table (30) in an aligned state. A molding device according to any one of the following paragraphs. (5) The product holding member (20) is connected to a winding transmission member of a chain (26) mounted on a chain wheel (25) rotated by a drive unit (24), and extends along the support column (23). Claim 2, which is equipped to be moved by
The molding apparatus according to any one of items 1 to 4.