JPH0741624B2 - Method and device for automatically taking out and loading foamed resin molded products - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foamed resin molded product for automating the loading and unloading process of the molded product released from the molding die in a molding machine for manufacturing foamed resin products such as Styrofoam molded products. The present invention also relates to an automatic unloading and loading method and device.

[0002]

2. Description of the Related Art Generally, a Styrofoam molded article is manufactured by using a pair of molding dies, which are a movable mold and a fixed mold, and pre-expanding expandable thermoplastic resin particles (hereinafter, beads) with or without pre-expanding. The so-called in-mold foam molding is performed fully automatically by filling the cavity in the molding die closed as it is, injecting steam to heat-mold and then cooling, opening the mold and taking out the molded product after mold release. There is.

By the way, in the in-mold foam molding as described above, the molded articles taken out from the mold have conventionally been collected and aligned manually, and there was a problem in terms of work efficiency.

Therefore, measures have been taken to automate the conventional work of taking out and aligning the molded products, and the molded products are removed from the mold by using a vacuum suction device which is movable vertically or horizontally immediately after the mold is opened. A method of releasing the mold, then transferring it, and storing it in a magazine rack (Japanese Patent Laid-Open No. 62-270323).
(See Japanese Laid-Open Patent Publication No. 63-209), or a device that is movable in the horizontal direction and has a device for stacking and aligning molded articles by vertically moving to an endless conveyor having a suction device (JP-A-63-209).
No. 823), a reversing mechanism for reversing one of the products to be further sequentially conveyed so as to face the other aligned products, and the reversed products are arranged as partition end portions by abutting against the regulation receiving plate. The moving position of the product holding member that removes the molded product from the mold and holds the product alignment table that stocks the product and the automatic transfer device that is arranged facing the product alignment table and that includes the extrusion mechanism for extruding the product There has been proposed a system (see Japanese Patent Application Laid-Open No. 2-57512) for automating the collection of the product released from the molding die by being installed in the mold.

However, each of these proposed means is disclosed, for example, in JP-A-62-270323 or JP-A-2-5.
In the method described in Japanese Patent No. 7512, since the molded products are aligned sideways, they must be stopped with a tape or a film in case of fear of falling, and not only the traces of the tape remain but also the moisture contained in the molded product when released. In some cases, the discharged water drops may remain, and there is a problem that it is suitable for taking out regularly, but it is not suitable for irregular taking out. In the one described in Japanese Patent Laid-Open No. 63-209823, a take-out machine is used. There was a problem that separate equipment was required for the aligner and the equipment cost was difficult. Therefore, further improvement has been studied, and the extraction processing method as shown in FIGS. 7A to 7H has been proposed. In this method, as shown in the same figure, a vacuum adsorption / extraction device (32) equipped with a suction cup (31) is mounted on a traveling table (3
3) A product receiving mechanism (34) provided on the upper frame so as to be able to move up and down, and a vacuum suction receiver (36) having a receiving suction cup (35) provided on the traveling carriage (37) in a reversible manner. (38) is opposed to the vacuum suction extractor (32), and the suction sucker (3) is lifted (A-B).
1) After adsorbing and holding (C) the molded product (M) taken out from the molding die by advancing the eject pin (not shown), the take-out suction cup (31) is lowered (D), and facing at this lowered position. Absorbed and held by the received sucker (35),
Then, the receiving sucker (35) is moved backward and displaced (F) by inversion, and then the molded product (M) is downwardly changed in direction and lowered on the stock stacking table (39) (GH), the molded product ( It is a method of removing and collecting M).

[0006]

The above-mentioned method is suitable in that the handling of the molded product taken out from the molding die is automated and the time taken out and stored in the molded product is shortened as compared with the conventional automatic take-out and aligning means. However, the respective mechanisms for taking out the molded products and for aligning and accumulating are separately required, and a sufficient simplification of the mechanism has not yet been achieved.

The present invention copes with the actual situation as described above, and in particular, by taking out and aligning and stacking molded articles by one mechanism, the removal and aligned accumulation of the molded articles removed from the molding die are automated, and the working time is reduced. It is intended to shorten the manufacturing cost, further reduce the equipment cost, and easily obtain a plurality of molded articles from one molding die by using an existing die by selecting an arbitrary arrangement.

[0008]

That is, one of the present invention, which is adapted to the above-mentioned object, is to take out and load a foamed resin molded product molded by a molding device in which a pair of molding dies are oppositely arranged so as to be openable and closable. , A swing frame having a molded product holding portion on the upper side so as to be rotatable is placed on a traveling carriage, and the lift frame is provided between molding dies that are spaced apart from each other, and the swing frame is attached to the frame. , While holding it in parallel, hold the molded product to be separated from the molding die by the holding part of the swing frame, then lower the elevating frame and rotate the upper swing frame 90 degrees at the lowered position. And turn the molded product downward,
In this state, the traveling carriage is moved to move the molded products to be held above the loading position, and then the holding of the molded products is released to sequentially stack and load the molded products on a stackable surface that can be raised and lowered. . Another invention according to claim 2 is an apparatus used for carrying out the above method,
A foamed resin molded product take-out mechanism that extends between a pair of molding dies that are openably and closably opposed to each other, and a loading mechanism that is on the side of the take-out mechanism and that stacks the taken-out molded products in a stacked manner. The mechanism is a swing mounted on a traveling carriage and provided with an elevating frame extending between a pair of molding dies and a molded product holding portion and pivotally supported at the upper part of the elevating frame so as to be rotatable by 90 ° with respect to the elevating frame. Frame and
Further, it is configured to include a pusher frame that extends to the loading mechanism side at the upper part thereof and has push means for pushing out the molded product held by the swing frame, and the loading surface of the loading mechanism is provided with an elevating device. It is characterized in that it can be raised and lowered. According to the third aspect of the present invention, in the above method and apparatus, a preferable molded article holding section is configured such that the holding section is constituted by at least a pair of guide plates facing each other and capable of opening and closing so as to detachably mount the molded article. It is characterized in that no obstacle is provided in the insertion / removal direction of the molded product of the part.

[0009]

When the foamed resin molded product is taken out and loaded using the above-described method and apparatus of the present invention, a molding die in which the elevating frame on the traveling carriage is moved to move the traveling carriage to separate and open the pair of molding dies. The swing frame is held parallel to the lifting frame, and the lifting frame is raised, and the molded product holding section provided on the swing frame holds the molded product that is released from the molding die. To do. When the holding portion of the swing frame holds the molded product, the elevating frame starts to descend, and when the desired descending position is reached, the elevating frame stops, the swing frame starts rotating, and the swing frame retains the molded product. Rotate 90 degrees and hold the held molded product downward. In this state, the traveling carriage moves toward the molding loading place side, and when the swing frame reaches an appropriate position above the loading surface, the traveling carriage stops, and at the same time, the swing frame keeps the molded product on the lower surface. The position. Then, when the holding is released and the push means pushes the molded article, the molded article descends to the lower loading surface. When the molded product holding portion according to claim 3 is attached to the swing frame for holding and releasing the molded product, when the molded product is discharged from the molding machine by the action of the release pin or the like, the molded product is inserted. Since there is no obstacle in the direction, it is easily inserted between the opposing guide plates, the front surface of the guide is closed, and the molded product is fixed from both side surfaces. Then, after the frame has rotated 90 °, the fixing of the molded product is released, and the pushing means fixed to the upper side causes the molded product to drop easily downward so that the molded product is held and released.

Thus, when the series of operations is completed, the traveling carriage returns to the original position, the swing frame also returns to the original position parallel to the elevating frame, and one cycle is completed. The stacked products are stacked on the stacking surface, and the stacking surface is sequentially lowered by the elevating device, so that the molded products are gradually stacked and stacked. In this way, the foamed resin molded product molded in-mold by the molding device can be easily carried out of the system without manpower by simply using one swing mechanism and utilizing the rotation of the swing frame. Can be taken out as.

[0011]

Embodiments of the present invention will now be described with reference to the drawings. FIGS. 1 and 2 show the basic structure of an apparatus according to the present invention. In FIG. , A chain mechanism in which a lifting frame (4) is fixed to a chain mechanism (6) or the like connected to the lifting drive device (5) on a traveling carriage (2) that is horizontally driven by the traveling drive device (3). It is mounted so as to be able to move up and down along the lifting guide frame (7) with the rotation of (6) and the like. Then, a swing frame (8) having a molded product holding portion (9) having a chuck and a guide (9a) which are divided into a plurality of sections and which are independently held in each of the divided sections is provided in the lifting frame (4). The upper end of the swing frame (8) is provided near the upper end thereof, and the upper end of the swing frame (8) is connected to a vertically moving rod (11) of a fluid cylinder (10) such as a low hydraulic cylinder arranged adjacent to the lifting frame (4). The swing frame (8), which is connected to the other end of the connected connecting rod (12), rotates 90 degrees with the other end connecting portion as a fulcrum as the cylinder rod (11) descends (see the two-dot chain line in FIGS. 1 and 2). Also, as the cylinder rod (11) rises, the swing frame (8) returns to its original position (see the solid line in FIG. 1) along the elevating frame (4) with the other end connecting portion as a fulcrum. .

In the figure, (13) is a pusher extending laterally from the lifting guide frame (7) of the lifting frame (4) at the upper part of the swing frame (8), that is, toward the loading mechanism described later. A frame is provided with push-out push means, for example, a push plate (14) for pushing the molded product (M) held by the swing frame (8) when necessary.

Therefore, the take-out mechanism (1) is disposed below the molding device consisting of a pair of molding dies of the fixed mold (15) and the movable mold (16), and the lifting frame (4) is provided. A molded resin holding product (9) of the swing frame (8) is taken out from the foamed resin molded product which extends between the pair of molding molds and is foam-molded in the mold by known means in the molding mold. . 5 and 6 show a molded product holding portion (9) provided on the swing frame (8).
An example is shown, and a pair of upper and lower racks (22) and (22 ') that reciprocate by the operation of the cylinders (21) and (21').
And rotary shafts (24), (24 ') having pinion gears (23), (23') at one end that engage with the racks (22), (22 '), and the rotary shafts (24),
(24 ') is connected to the push rod (2
6) and a pair of guide plates (25) arranged to face each other for attaching and detaching the molded product (M) via a spring (29),
(25 '), the guide plate (2
5) and (25 ') have a lower surface receiving plate (27) at the lower part and a front contact plate (2) fixed to the elevating frame (4) at the front surface.
8) is located and plays the role of a stopper. In the illustrated example, the guide plate installation positions are installed on both sides in the direction of entry of the molded product, but the guide plates may be installed in the up / down direction or on both the top / bottom sides.
In the illustrated example, a cylinder such as an air cylinder (2
The gears (23) and (23) are driven by driving 1) and (21 ').
By rotating the shafts (24) and (24 ') via the ‘′’, the molded product is clamped and held, but depending on the weight of the molded product, driving of the cylinders (21) and (21 ′) is omitted. However, it is also possible to hold it only by the repulsive force of the spring (29). Further, in the above embodiment, the shaft (2
4) and (24 ') are rotated by the cylinders (21) and (21'), but a drive source such as an electromagnetic magnet (27) may be used as shown in FIG. 7 instead of the rotation of the roller shaft. It is also possible to hold the brush-like material (30) on the surface of the guide plate instead of the spring (29). Furthermore, it is possible to use a conventional suction tool without using a guide plate as the holding portion (9),
At this time, when the swing frame (8) is rotated by 90 degrees, a holding force of the holding portion (9) has a strong suction force for transferring the molded product (M) to the pusher frame (13) side. It is necessary to equip the suction tool on the pusher frame (13) side, and in order to lower the molded product by the pusher plate (14) without any trouble, the swing frame (8) is rotated again in advance and moved up and down. It is important to keep it along the frame (4).

Next, FIG. 3 shows a loading mechanism (17) for loading the molded products (M) taken out by the take-out mechanism (1), and of the traveling carriage (2) of the take-out mechanism (1). It is located on the horizontal path of travel, and in the figure its loading surface is formed by a belt conveyor (18). The belt conveyor (18) can be moved up and down by an elevating device so that it can be stacked. When the stacker is stacked, the belt conveyor (18) gradually descends downward and the molded products that are sequentially taken out are swung by the take-out mechanism (1). Frame (8)
It is released from the holding portion (9) provided in the above and can be pushed down and stacked by the push means. The number of molded products held by the holding portion (9) is not limited to one, but a plurality of molded products can be obtained at the same time. Therefore, even in stacking and stacking, a plurality of stacked product can be obtained at the same time.

The apparatus of the present invention has the above-mentioned structure. Next, the use mode thereof will be described with reference to the operation explanatory view shown in FIG. 4. First, the movable die (16) of the molding apparatus is moved,
Open the mold. Next, the elevating frame (4) is lifted as shown in FIG. 4A, and when the position is determined, the molded body (M) is pushed out from the fixed mold (15) by a known push means (see FIG. 4B) and the elevating frame ( The molded product (M) is held by the molded product holding portion (9) provided on the swing frame (8) of 4).

When the swing frame (8) of the lifting frame (4) holds the molded product (M), the push means of the fixed mold (15) returns to its original position, and the lifting frame (4) descends (see FIG. 4). C), the frame (4) also returns to its original position. And then activate the swing frame (8),
The molded product (M) is turned downward by turning 90 degrees, and the take-out mechanism (1) is moved to the adjacent loading mechanism side by the traveling carriage (2). When the swing frame (8) of the take-out mechanism (1) reaches the upper side of the loading mechanism (17) and its holding portion (9) faces the loading surface composed of the belt conveyor (18), the molded article is simultaneously pushed out by the push means. Release the holding and move the molded product (M) to the belt conveyor (1
8) Drop it up (see FIG. 4D) After that, push means is returned, the carriage is operated to return to the original position of the take-out mechanism (1), and the swing frame (8) is returned to complete the operation. To do. After that, this process is repeated, and the molded products are sequentially stacked on the belt conveyor (18) which is a loading surface, and then, although not shown, they are supplied into the drying device at any time, and after the required drying, the packaging process is performed. Send it as a molded product. In the above process, when the molded product holding portion shown in FIGS. 5 and 6 is used, the molded product is held and released by the following operations. That is, first, when the molded product is ejected from the molding machine to the position of the front contact plate (28) by the action of the release pin or the like, the cylinders (21) and (21 ') are operated and the rack (22) is moved by the specified distance. , (22 ') are moved inward. Then, the shafts (24) and (24 ') are rotated through the gears (23) and (23'), the front surfaces of the guide plates (25) and (25 ') are closed, and the molded product (M).
Is fixed from both sides. After this, the swing frame (8) turns 90 degrees, and then the cylinder (21),
(21 ') returns to the origin, the fixation of the molded product is released,
The molded product easily falls downward due to the protrusion of the push means fixed to the upper side.

Although the apparatus of the present invention and the method of taking out and loading by the apparatus have been described above, all the operations of taking out and loading as described above are automatically performed by using known control means. As a result, in the present invention, it is possible to perform unmanned taking out and loading of molded products.

[0018]

As described above, according to the present invention, when taking out a foamed resin molded product molded by a molding machine in which a pair of molding dies are arranged so as to be openable and closably opposed to each other, a swing frame having a molded product holding portion on the upper part thereof is provided. A vertically movable lifting frame is placed on a traveling carriage, and the lifting frame is lifted between the molding dies that are spaced apart from each other, and the swing frame is held in parallel with the frame. After holding the molded product to be separated further by the holding portion of the swing frame, the elevating frame is lowered, and at the lowered position, the upper swing frame is rotated 90 degrees to orient the molded product downward, and run in that state A method and apparatus for moving a trolley to move the molded products to be held to the upper part of the loading position, and then releasing the holding of the molded products to sequentially stack the stacked products on a stackable surface capable of moving up and down. In the past, separate devices were used for each process of taking out and aligning, but by using a swing frame that rotates 90 degrees, it is possible to perform two processes of taking out and aligning and stacking with one mechanism. Next to
It is possible to reduce the installation space and the equipment cost. In addition, by using the swing frame, since the molded products are aligned downward, internal drainage due to the moisture contained in the molded products can be performed, which can reduce the subsequent drying load and improve the drying efficiency. Even when trying to obtain multiple molded products from the mold, there is an effect that the existing mold can be used as it is because the arbitrary arrangement can be selected, and the handling of the product separated from the mold is automated. In addition to the fact that the product take-out / accommodation processing time can be greatly shortened and the product can be shipped easily by batch packaging, it is easy to handle. Collecting work can be done automatically without human labor, and efficient production is possible without hindering the molding work, and there is no risk of soiling or damage to the molded product, improving safety. It is possible to remarkably improve the reliability of the form cycle. According to the third aspect of the present invention, the molded product holding portion is made more advantageous to enhance the practical effect.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a main part of an example of a device according to the present invention.

FIG. 2 is a schematic side view of the device.

FIG. 3 is a schematic front view of the device of the present invention including a loading mechanism.

FIG. 4 is an operation state explanatory diagram according to the present invention, in which A to D show respective steps.

FIG. 5 is a schematic perspective view showing an example of a molded product holding mechanism in a molded product holding portion.

FIG. 6 is an explanatory view showing a guide plate operating state of the molded product holding mechanism in the molded product holding portion.

7A and 7B show another embodiment relating to a modification of the guide plate drive source, in which FIG. 7A shows a case where a spring is used together, and FIG. 7B shows a case where a spring is unnecessary.

FIG. 8 is an explanatory view of a comparative example showing the order of the taken-out and loading steps of molded products, and A to H show respective steps.

[Explanation of symbols]

 (1) Take-out mechanism (2) Traveling carriage (4) Lifting frame (8) Swing frame (9) Molded product holding part (15) Fixed mold (16) Movable mold (17) Loading mechanism (M) Molded product

Claims (3)

[Claims] 1. When taking out a foamed resin molded product to be molded by a molding device in which a pair of molding dies are arranged to face each other so as to be openable and closable, a swing frame provided with a molded product holding portion on the upper side is rotatably provided side by side. Place the frame on the traveling carriage and place the lifting frame between the molds that are separated and opened,
The swing frame is lifted while being held in parallel with the frame, and the molded product to be separated from the molding die is held by the holding portion of the swing frame, and then the elevating frame is lowered to swing the upper swing at the lowered position. The frame is turned 90 degrees to direct the molded product downward, and in that state, the traveling carriage is moved to move the molded product to be held to the upper part of the loading position, and then the holding of the molded product is released to allow lifting and lowering. A method for automatically taking out and loading foamed resin molded products, which is characterized by sequentially stacking and loading on a loading surface. 2. A device for taking out and loading a foamed resin molded product, which is molded by a molding device in which a pair of molding dies are opposed to each other in an openable and closable manner, wherein the molding extends between a pair of molding dies opposed to each other in an openable and closable manner. It comprises a product take-out mechanism and a loading mechanism on the side of the take-out mechanism for stacking and taking out taken-out molded products. The molded product take-out mechanism is mounted on a traveling carriage and is provided between a pair of molding dies. An elevating frame that extends to
A swing frame that is provided with a molded product holding portion and is pivotally supported at the upper part of the elevating frame so as to be rotatable by 90 ° with respect to the elevating frame, and a molded product that is extended to the stacking mechanism side at the upper part and is held by the swing frame. An automatic take-out and loading device for foamed resin molded articles, characterized in that it comprises a pusher frame having push means for pushing out . 3. The molded product holding portions are opposed to each other and can be freely opened and closed, and are constituted by at least a pair of guide plates for mounting and demounting the molded products, and there is no obstacle in the direction in which the molded products are inserted and removed. The automatic take-out and loading device for a foamed resin molded article according to claim 2.