JPH0739106B2 - Continuous processing system and equipment for 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 molding apparatus for producing foamed resin products such as Styrofoam moldings, which is a series for continuously performing a drying process together with taking out and aligning the above-mentioned molded products released from a molding die. Of the processing system and the device.

[0002]

2. Description of the Related Art Conventionally, in polystyrene, polyolefin, etc., these pre-expanded particles have been used to fill them into a pair of molding dies consisting of a fixed mold and a movable mold, and after heat fusion, cooling them inside the mold. Molded products are manufactured by so-called in-mold foam molding, but the number of molded products molded by this method is large per shot, and each molded product is taken out from the molding device at a rate of about 30 seconds. I'm going down.

Therefore, along with the trend of automation, it is required to continuously perform the automatic take-out and alignment process of the foam molding machine, and JP-A-62-270323 and JP-A-63-2.
No. 09823, Japanese Patent Laid-Open No. 2-57512, and the like propose specific methods and apparatuses therefor.

However, the molded articles thus taken out and aligned still contain water inside, and it is necessary to dry the molded articles thereafter for commercialization. For this reason, conventionally, after stacking the formed products, it is carried out by using a conveyor and drying them by sending them into a drying device maintained at 50 to 60 ° C.

[0005]

However, in the conventional drying, the stacked products are fed into the drying device each time and dried, and the drying process is not continuous with the alignment process. It was necessary to reduce the work capacity. In addition, if the drying time required for traveling on the belt conveyor in the drying device (usually about 3 hours) is taken into consideration, a long space is required, which increases the cost of the drying equipment. Inevitable.

The present invention copes with the actual situation as described above, and by automating the take-out and alignment of the molded products and by making the drying process continuous, the process automation until the drying of the molded products is achieved and the quality of the molded products is improved. While enabling unmanned driving,
The purpose is to significantly improve work efficiency.

[0007]

That is, according to the present invention which meets the above-mentioned object, basically, the conventional molding products are taken out and arranged, and then the drying process is continued. A step of automatically taking out the resin molded product from the molding device and stacking and aligning it, and a step of automatically conveying the molded product to a drying device and drying it when the stacked and aligned molded product reaches a predetermined amount. It is in a continuous processing system that is continuous and connected. Further, according to the present invention, as an apparatus used in the above system, an automatic take-out and aligning apparatus for foamed resin molded articles and a drying apparatus having a built-in belt conveyor for conveying molded articles are provided continuously, and the automatic take-out and aligning apparatus is used for alignment. The present invention is characterized by an apparatus configuration in which, when a molded product reaches a predetermined amount, the molded product is automatically and sequentially fed into a drying device. Further, the apparatus according to claim 3 is the most practical apparatus according to the present invention, in which the belt conveyor incorporated in the drying apparatus is a multi-stage type, and the molded articles aligned by the automatic take-out and aligning apparatus are sequentially moved by the elevating belt conveyor.
It is characterized in that it can be distributed and sent to each of the above stages.

[0008]

When the above method and apparatus of the present invention are used,
The automatic take-out and aligning device takes out the molded products one after another from the molding device, and if a predetermined amount of the aligned products are collected, they are automatically sent onto the conveyor belt conveyor for drying, which saves manpower and is very efficient. When the belt conveyor in the apparatus is a multi-stage type, the aligned molded articles can be distributed to each stage and dried, and the discharging is sequentially discharged from the drying apparatus one by one. Compared to the staged one, it becomes easier to hold and dry in the apparatus for a sufficient drying time even in a short space, and the quality of the molded product is improved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. FIGS. 1 and 2 show a continuous processing apparatus according to the present invention.
In these figures, (A) is a device for taking out molded products, (B) is an aligning device, (C) is a drying device, (D) is a discharging device, and (E) is a packaging device. Normal,
Each of these devices (A) to (E) is arranged in series. Of these, the molded product take-out device (A) and the aligning device (B) are automatic take-out and loading devices separately filed by the applicant, and the molded products (M) separated from the molding die are automatically taken out and aligned. Then, stacking and stacking is performed.

More specifically, the molded product take-out device (A) and the aligning device (B) open and close a pair of molding dies including a movable mold (a) and a fixed mold (b) as shown in the figure. A loading and unloading device for a foamed resin molded product (M) molded by a molding device freely opposed to each other, and a molded product unloading mechanism (1) extending between the pair of molding dies that are movably opposed to each other, The stacking mechanism (2) is provided on the side of the take-out mechanism and stacks and takes out the taken-out molded products. The molded product take-out mechanism (1) is placed on the traveling carriage (3) to form a pair. Equipped with an elevating frame (4) extending between the molding dies and a molded product suction holding portion, and is pivotally supported at an upper part of the elevating frame so as to be rotatable by 90 ° with respect to the elevating frame by operation of a low hydraulic cylinder (6). Swing frame (5) and more Part of the loading mechanism (2), the pusher frame (7) having push means for pushing out the molded product held by the swing frame. The loading surface is an elevator conveyor (8) equipped with an elevator.

Here, the elevating conveyor (8) of the loading device can be moved up and down to the positions of upper, middle and lower three stages in accordance with the fact that the drying device (C) described later has three stages in the drawing. Elevating and lowering to each of these stages is determined by the storage condition of the molded product (M) in the drying device (C), and a signal is attached as necessary.

Next, as the drying device (C) continuously provided to the aligning device (B), a drying furnace containing three stages of belt conveyors (9), (10) and (11) is used. , A hot air circulation fan (12) and a hot air pipe (14) including a steam heater (13) are attached to the molded articles (M) of the respective stages, and conduits (15), (16),
Through (17), as shown by the arrow, the water contained in the molded product (M) is evaporated and absorbed from the molded product (M) in the right half of the figure, and hot air is blown to the molded product (M) in the left half to improve the drying effect. I have listed. Of course, the drying device (C) is not limited to the above-mentioned drying furnace, and various known devices can be used as long as they meet the specifications.

However, as in the above case, it is preferable that the water content in the molded product (M) is evaporated and eliminated in the first half and the drying effect is exerted from the outside in the latter half. An elevating belt conveyor (18) similar to that on the inlet side is provided on the discharge side of the drying device (C), and the stacked molded product (M) sent out after drying for a required time is transferred. According to the discharge position, it is properly moved up and down to receive.
Therefore, in this case as well, it is desirable that the signal notifying the discharge position and the vertical movement of the belt conveyor (18) be linked. At the destination of the dried stacked product (M) discharged in this way, the stacked product (M) sent by the packaging machine (19) is usually arranged as shown in the figure. It is stored in the packaging bag (20) and shipped. In this case, a commercially available packaging machine (19) can be used at any time.

The processing apparatus of the present invention is as described above, and the continuous processing system of the present invention is accomplished by using such an apparatus. First, in the molded product take-out device (A), an elevating frame (4) is provided between the molding dies separated and opened.
Is lifted while the swing frame (5) is held parallel to the frame, and the molded product (M) separated from the molding dies (a) and (b) is sucked and held by the swing frame (5). After that, the elevating frame (4) is lowered, and at the lowered position, the upper swing frame (5) is rotated 90 degrees to direct the molded product (M) downward,
In that state, the traveling carriage (3) is moved to move the molded products to be held to the upper part of the loading position, and then the suction holding of the molded products is released to sequentially stack the molded products on a stackable surface.

When the stacking of a predetermined amount is completed, the elevating device is used to position the stacking molded article at the entrance of the empty one of the three upper, middle and lower stages in the drying device (C). (M) is sent into the drying device (C). At this time, it is easy to automatically control the series of operations, that is, the notification of the stage having the vacant space, the operation of the elevating device thereby, and the feeding to the drying device.

In the drying device (C), each of the stacked molded articles (M) stored in three stages is dried by the drying device (C).
Since it is discharged from the outlet side once, the staying time in the drying device (C) becomes long, and the water content contained in the molded product can be removed and the molded product can be dried with a sufficient drying time.

The drying device (C) has three stages as shown in the drawing, but of course, it may have four stages or more, or two stages.
In the case of one stage, the belt conveyor may become long due to the required drying time, so that it is sufficient if the drying is fast, but the multistage type is usually advantageous. Further, as for the supply of the molded product (M) to the drying device (C) and the discharge of the molded product (M) from the drying device (C), an elevating belt conveyor is usually used, but the same effect can be used as well. Is.

The stacked molded article thus dried is then stored in a packaging bag by a packaging machine and shipped, and is molded by in-mold foam molding by making the above-mentioned devices continuous. It is possible to automate unattended operation by automating a series of operations from taking out, arranging and drying foamed resin molded products.

[0019]

As described above, according to the present invention, the automatic take-out / arrangement device for the foamed resin molded product and the drying device having the built-in belt conveyor for conveying the molded product are continuously provided, and the molding process is performed by the automatic take-out and aligning device. When the amount of products reaches a predetermined amount, the molded products are automatically and sequentially fed into the drying device. The conventional process of removing and aligning the molded products and drying, which have been performed separately, are continuously performed. Since it is performed by hand, labor is not required, labor can be saved, unmanned operation can be performed, and work efficiency can be significantly improved. Moreover, since the molded product molded in the mold is not handled manually, it does not become dirty or damaged, and the time required for drying, removing the package, and shipping it is shortened, and an efficient molding cycle can be adjusted. You can Further, when a multi-stage belt conveyor is used for drying, a remarkable effect that the installation space of the drying device required for the required time of drying can be greatly reduced and the equipment can be reduced is expected.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a main part of a processing apparatus of the present invention, in which a drying apparatus shows an internal structure.

FIG. 2 is a schematic view showing an example of a processing device following a drying device.

[Explanation of symbols]

 (A) Molded product removal device (B) Alignment device (C) Drying device (M) Molded product (1) Molded product removal mechanism (2) Loading mechanism (8) Lift conveyor (9) Belt conveyor (10) Belt conveyor ( 11) Belt conveyor

Claims (3)

[Claims] 1. A step of automatically taking out a foamed resin molded product molded by a molding apparatus from the molding apparatus and stacking and aligning the foamed resin molded product, and automatically forming the molded product when the stacked and aligned molded products reach a predetermined amount. A continuous processing system for a foamed resin molded product, which is characterized in that it is combined with a step of carrying it into a drying device and drying it. 2. An automatic take-out / arrangement device for foamed resin molded articles is provided with a drying device having a built-in belt conveyor for continuously carrying the molded article, and when the number of molded articles aligned by the automatic take-out and aligning apparatus reaches a predetermined amount, A continuous processing apparatus for foamed resin molded articles, characterized in that the molded articles are automatically and sequentially fed into a drying device. 3. A belt conveyor built in the drying device is of a multi-stage type, and the molded products aligned by the automatic take-out and aligning device are sequentially distributed and fed to each stage by an elevating belt conveyor. The continuous processing apparatus for the foamed resin molded product according to claim 2.