JPH0739109B2 - 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 removal and alignment of the molded products, and the molded products are released from the mold by using a vacuum suction device that can be moved vertically or horizontally immediately after the mold is opened. After that, the system is moved and stored in a magazine rack (Japanese Patent Laid-Open No. 62-2703).
No. 23), or a system in which an endless conveyor having a suction device and vertically moving to stack and align the molded products is combined (Japanese Patent Laid-Open No. 63-2).
No. 09823), which is one of the products to be further transported.
Inverting mechanism that inverts one product to face other aligned products, and product aligning table that stocks the products arranged as partition ends by contacting the inverted product with the regulation support plate, and the product aligning table A product released from the molding die that is placed facing each other and is placed at the moving position of the product holding member that removes the molded product from the mold and holds the automatic conveying device including the extrusion mechanism for extruding the product A method of automating the recovery of the above (see Japanese Patent Application Laid-Open No. 2-57512) has been proposed.

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 the risk of tipping over. 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 the equipment cost was difficult because separate equipment was required for the aligner. Therefore, further improvement has been studied, and the extraction treatment method as shown in FIGS. 7A to 7H has been proposed. In this method, as shown in the same figure, a vacuum suction extractor (32) equipped with a suction cup (31) is mounted on a frame on a traveling table (33) so as to be vertically movable, and a receiving suction cup (35). A vacuum suction receiver (36) provided with the above) and a product receiving mechanism (38) provided on the traveling carriage (37) so as to be able to be reversed, and the vacuum suction extractor (32) is lifted ( a-b) The pickup sucker (31) sucks and holds (C) the molded product (M) taken out from the molding die by advancing an eject pin (not shown), and then lowers the pickup sucker (31) (d). ),
At this lowering position, the receiving suction cups (35) facing each other are suction-held (e), and then the receiving suction cups (35) are moved backward and displaced (f), and then the molded product (M) is turned downward. Grate on the stock stacking stand (39) (g-
h), a method in which the molded product (M) is removed and accumulated.

However, it can be said that this method is preferable in that the handling of the molded product taken out from the molding die is automated and the time for taking out and storing the molded product is shortened as compared with the conventional automatic take-out and aligning means. After that, it was found that there is still room for improvement in terms of the simplification of the mechanism, since each time it is necessary to take out the molded products and separately arrange each mechanism for aligning and accumulating, as the operation is repeated.

Therefore, the present inventor continues to study further,
As a result, when the foamed resin molded product molded by the molding device in which the pair of molding dies is arranged to face each other so as to be freely opened and closed is taken out and loaded, as shown in FIGS. 6A to 6D, the continuous rod (2
An elevating frame (2) rotatably provided with a swing frame (24) having a molded product holding section (23)
1) is placed on a traveling carriage, and the elevating frame (21) is lifted between the molding dies that are separated and opened, while the swing frame is held in parallel with the frame (21), After holding the molded product (M), which is more detached, by the holding portion (23) of the swing frame, the elevating frame (21) is lowered, and at the lowered position, the upper swing frame is rotated 90 degrees to form the molded product. (M) is directed downward, and in that state, the traveling carriage is moved to move the molded product (M) to be held to the upper part of the loading position, and then the holding of the molded product is released to raise and lower the loading surface (25). ) We have previously proposed an automatic pick-up and load method and a device therefor for stacking and stacking in sequence. (Japanese Patent Application No. 3-163479)

[0007]

The present invention further develops the automatic unloading and loading method and apparatus according to the above-mentioned proposal, which enables a reduction in installation height, a reduction in building cost, an easy mold replacement, and a mechanism. The purpose is to increase the utility as an industrial facility such as simplification.

[0008]

That is, the feature of the present invention which meets the above-mentioned object is to use an oscillating frame structure instead of the elevating frame and to simplify the loading of molded products. The point is that when taking out a foamed resin molded product that is molded by a molding machine in which a pair of molding dies are oppositely arranged to open and close, a swing frame equipped with a molded product holding portion at the tip is rotatably attached. A molded product in which a movable frame is movably arranged, and the swing frame is rotated to move the swing frame while keeping the swing frame in a vertical state between the molds separated and opened, and then separated from the mold. The swing frame, the swing frame is rotated, and the swing frame at the tip is rotated 90 degrees at the rotation position to orient the molded product downward and swing in that state. Frame Move the arm molded article is shifted to the loading position the upper to the holding, then a sequential method of stacking loaded on the loading surface to release the retention of the molded article. Also,
The present invention is a device configuration for that purpose, which is a loading and unloading device for a foamed resin molded product molded by a molding device in which a pair of molding dies are arranged so as to be openable and closable so as to be openable and closable. The molding product take-out mechanism extending between a pair of molding dies of a molding device arranged opposite to each other, and a stacking mechanism which is on the side of the taking-out mechanism and stacks the taken-out molding products in a stacked manner. A swing frame that is placed on a movable traveling carriage and that swings between a lower portion between a pair of molding dies and a side portion of the upper loading mechanism; The swing frame includes a swing frame pivotally supported by a tip portion of the frame so as to be rotatable by 90 ° with respect to the swing frame, and a pusher frame having push means for pushing out a molded product held by the swing frame. And a molded product take-out mechanism that extends between a pair of molding dies of a molding device that is disposed at the lower part of the molding device and that is openably and closably opposed to each other, and a molding taken out on the side of the take-out mechanism. The molding product take-out mechanism is suspended and held by a movable carriage, and is rotated between a pair of molding dies in the upper part and the sides of the lower loading mechanism. A swing frame that is movable, a swing frame that is provided with a molded product holding portion and is pivotally supported at the tip of the swing frame so as to be rotatable 90 ° with respect to the swing frame, and a molded product that is held by the swing frame. It is characterized by including a pusher frame provided with push means for pushing out.

[0009]

When the foamed resin molded product is taken out and loaded by using the above-described method and apparatus of the present invention, the rocking frame is moved along the rail so that the pair of molding dies are separated and opened. The swing frame is positioned above or below, and then the swing frame is rotated downward or upward while the swing frame at the tip end is held perpendicular to the horizontal plane, and the swing frame is inserted between the molding dies, The molded product holding portion provided in the above holds the molded product that is separated from the molding die. When the holding portion of the swing frame holds the molded product, the swing frame is rotated upward or downward,
Bring to the side of the required loading position. When the desired loading position is reached, the swing frame stops rotating, the swing frame starts rotating, and the swing frame rotates 90 degrees while holding the molded product, and the held molded product faces downward. In this state, the swing frame moves horizontally with the swing frame toward the side where the molded product is loaded, and stops when the swing frame reaches an appropriate position above the loading surface, and at the same time, the swing frame places the molded product on the lower surface. The position will be kept. Then, when it is pushed out by the push means fixed to the upper side, the molded product easily falls onto the lower loading surface,
The molded products are held and released, and loading is completed.

Thus, when a series of operations is completed, the swing frame returns to the original position, the swing frame also returns to the original position with respect to the swing frame, and one cycle is completed. The rotation stop position and the swing frame rotation position are sequentially changed, the respective loading positions are laterally stopped, and the molded products are sequentially stacked on the loading surface without moving the loading surface up and down by moving each in the horizontal direction. Items 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 an example of an apparatus according to the present invention. In the drawings, (A) shows a movable type and a fixed type. A mechanism for taking out a molded product (M) molded by a molding device (C) having a pair of molding dies opposed to each other so as to be openable and closable from the molding device (C), while (B) is the above-mentioned molded product. A loading mechanism for stacking and stacking products (M) above the molding device (C) and laterally of the molding product removal mechanism (A). Both parts of the product stacking and loading mechanism (B) constitute a main part.

The molding take-out mechanism (A) travels on a pair of rails (4) mounted on both sides by a traveling drive device (3) in a lateral direction along the rails (4) to drive the traveling carriage (2). ) Having a pair of machine frames (1) facing each other, and having a fulcrum (5) substantially in the lower center of the machine frame (1) in the height direction, a pair of link rods (6) parallel to each other.
A swinging frame (6) composed of a) and (6b) is rotatably supported by a connecting rod (7) for connecting the parallel rods (6a) and (6b). The swinging frame (6) is wound around a winding drum (9) connected to an operating part (8) including a winding worm speed reducer attached to the machine frame (1) via a chain or a wheel. The wire (10) being pulled out is pulled out through the sheave (11) on the machine casing (1), and the pulling-out end of the wire (10) is a pair of parallel rods.
By swinging the wire (10) by being fixed to the lower rod (6b), the swing frame (6) is pulled up and pulled out.
Is rotatable about the fulcrum (5) in the vertical direction. In this case, the rotation needs to sequentially shift the phases corresponding to the loading of the molded products (M) described later, so that the lengths of the wire winding and the drawing vary with the loading. This variation is usually determined by being preset. The swing frame (6) has a chuck and a guide (not shown), which are divided into a plurality of sections as described in, for example, Japanese Patent Application No. 3-163479, and are held independently at each section. One end of a swing frame (14) having a molded product holding portion (13), that is, the upper end side in the figure, is pivotally attached, and one end is connected to a rod (16) of a fluid cylinder (15) such as a low hydraulic cylinder installed adjacently. The other end of the connected rod (17) is connected to the shaft attachment portion of the swing frame (14), and the swing frame (14) is connected to the other end of the rod (17) due to the expansion and contraction of the cylinder rod (16). With the rotation of the shaft mounting portion, the shaft mounting portion is rotated by 90 ° about the shaft mounting portion as a fulcrum.

In the figure, (12) is a swing frame (6).
And (18) is a pusher frame having push means for pushing out the molded product (M) held by the swing frame (14) when necessary, for example, a pusher frame provided with a push plate. In (14), it is provided adjacent to the molded product holding portion (13). Lever Pusher Frame (1
8) may be provided separately from the swing frame (14).

On the other hand, the stacking mechanism (B) for stacking and stacking the molded products (M) taken out by the take-out mechanism.
Is located on the lateral movement path of the traveling carriage (2) on which the take-out mechanism (A) is placed, and the loading surface thereof is formed by a belt conveyor (19). It is possible to move in the horizontal (lateral) direction along the line 4). Then, the swing frame (6) of the molded product take-out mechanism (A) which moves while changing the height changes the swing frame (14) and pushes down the belt conveyor (19).
Molded products (M) are sequentially stacked on the surface. The number of molded products (M) held by the holding section (13) is not limited to one, but a plurality of molded products can be obtained at the same time.

Next, a concrete mode of taking out the molded products and stacking and stacking them by using the above apparatus will be explained.
When the molding is completed and the movable mold (1) of the molding device (C) is moved to the mold open state, the wire (10) is pulled out from the winding drum (9) by the operation of the operation part (8), The swing frame (6) pivots downward around the fulcrum (5), and the swing frame (14) held in a vertical state is inserted between both molds, and a molded product provided on the swing frame (14). The holding part (13) faces the molded product in the mold, the molded product (M) in the mold is chucked, and the guide is used.
It is held by the holding part (13). Then, in this state, the swing frame (6) keeps the swing frame (14) in the vertical state, and the wire (1) formed by the winding drum (9).
It is rotated about the fulcrum (5) by the hoisting of (0), and stops when it reaches the required position. When the swing frame (6) stops at a predetermined height, the swing frame (14) in the vertical state is rotated 90 ° by the operation of the fluid cylinder (15), and the molded product (M) is directed downward. Then, the swing frame (14) is generated by traveling the traveling carriage (2).
The take-out mechanism (A) including the horizontal movement moves toward the belt conveyor (19), which is the loading mechanism (B), to move the molded product (M) held by the swing frame (14) to the belt conveyor. (19) The molded product (M) is placed on the upper part and pushed by a pusher means (1).
9) Drop it up. After that, the pusher means is returned to its original position, the carriage (2) is operated to return the take-out mechanism (A) to its original position, and the swing frame (14) is rotated by 90 ° again to take out and load a series of molded articles. The work is completed.

Thereafter, the rotation stop position (height) on the side of the stacking mechanism (B) after holding the molded product of the swing frame (6).
The swinging frame, the swinging frame (14) is rotated 90 °, and the take-out mechanism (A) is laterally moved to sequentially stack the molded products (M). Although not supplied, it is supplied into the drying device at any time, and after being dried as required, sent to the packaging process to be a molded product.

The apparatus shown in FIGS. 3, 4 and 5 is another embodiment of the apparatus of the present invention. In the embodiment shown in FIGS. 1 and 2, the molding apparatus (C) is arranged in the lower part to perform molding. While the product take-out mechanism (A) and the loading mechanism (B) are arranged at the upper part, the molding device (C) is arranged at the upper part, and the molded product take-out mechanism and the loading mechanism (B) are arranged at the lower part. There is. In this case, the swing frame (6) provided with the swing frame (14) is vertically suspended and suspended on the traveling carriage (2) which is laterally driven along the rail (4) (1). ) Is provided so as to be rotatable about a shaft provided over the machine frame as a fulcrum (5), and the swing frame (14) is erected upward in a vertical state. Therefore, as compared with the case of FIG. 1 and FIG. 2, except that the molded product holding portion (13) of the swing frame (14) is on the opposite side to the front and back sides, basically there is a difference between the upper loading and the lower loading. There is no difference from the case of FIG. 1 and FIG. 2, and the details are omitted. The same parts as those in FIGS. 1 and 2 are designated by the same reference numerals.

[0018]

As described above, according to the present invention, when taking out a foamed resin molded product molded by a molding device in which a pair of molding dies are arranged so as to open and close, a swing frame having a molded product holding portion is rotated. A rocking frame that can be installed side by side is installed on the traveling carriage so that it can move laterally, the rocking frame is brought close to the molding die that is separated and opened, and the molding die is held with the attached swing frame held vertically. Let me insert it between
After holding the molded product separated from the molding die by the holding portion of the swing frame, the swing frame is rotated, the swing frame is stopped at the required position, and the swing frame is rotated 90 degrees to form the molded product. Downward, and in that state, the traveling carriage is moved laterally to move the molded products to be held to the upper part of the loading position, and then the holding of the molded products is released to sequentially stack and load the molded products on the loading surface. In the past, separate devices were used for each process of taking out and aligning, but by using a swing frame that rotates the swing frame and a swing frame that rotates 90 degrees, the movement can be reduced by one mechanism. It is possible to perform two processes of taking out and aligning and loading, and it is possible to simplify the mechanism and reduce the installation space and the facility cost. Effective use of the upper or lower space, building Savings strike, to achieve ease of tool changing, having a remarkable effect of improving the practicality as an industrial facility. 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.

[Brief description of drawings]

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

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

FIG. 3 is a schematic front view showing another embodiment of the device of the present invention.

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

5 is a schematic perspective view showing the takeout mechanism of FIG. 3;

6 (a) to 6 (d) are explanatory views showing the operation states of the previously proposed removal and loading of molded products.

FIG. 7 is an explanatory view of a comparative example showing the order of a molded product taking out and loading step, in which (a) to (h) show respective steps.

[Explanation of symbols]

 (A) Molded product take-out mechanism (B) Loading mechanism (C) Molding device (M) Molded product (1) Movable mold (2) Fixed mold (5) Support point (6) Swing frame (13) Molded product holding part ( 14) Swing frame (18) Pusher frame (19) Belt conveyor

Claims (3)

[Claims] 1. When taking out a foamed resin molded product molded by a molding device in which a pair of molding dies are arranged opposite to each other so as to be openable and closable, a swing frame provided with a molded product holding portion at its tip is rotatably provided side by side. A movable frame is arranged so that it can move laterally, and the swing frame is rotated to insert the swing frame in a vertical state between the molds that are separated and opened, and then separated from the mold. After the product is held by the molded product holding portion of the swing frame, the swing frame is rotated again to the required position, and the swing frame at the tip is rotated 90 degrees at the rotated position to direct the molded product downward, In this state, the swing frame is laterally moved to move the molded products to be held to the upper part of the loading position, and then the holding of the molded products is released to sequentially stack and stack the molded products on the loading surface. Molding How to automatically take out and load items. 2. A loading / unloading device for a foamed resin molded product molded by a molding device in which a pair of molding dies are arranged oppositely to each other so as to be openable and closable. The molding device comprises a molded product take-out mechanism extending between a pair of molding dies of the molding apparatus, and a loading mechanism which is on the side of the taken-out mechanism and stacks the taken-out molded products in a stacked manner. A swing frame that is mounted on a movable carriage and that rotates between the lower part of a pair of molding dies and between the upper part of the loading mechanism and a molded product holding portion. A swing frame that is pivotally supported by 90 ° with respect to the swing frame, and a pusher frame having push means for pushing out a molded product held by the swing frame. Characteristic Automatic loading / unloading device for foamed resin molded products. 3. A device for taking out and loading a foamed resin molded product molded by a molding device in which a pair of molding dies are opposed to each other in an openable and closable manner. The molding device comprises a molded product take-out mechanism extending between a pair of molding dies of the molding apparatus, and a loading mechanism which is on the side of the taken-out mechanism and stacks the taken-out molded products in a stacked manner. A swing frame that is supported by a movable carriage and that swings between the vicinity of a pair of upper molding dies and the side of the lower loading mechanism, and a molded product holding portion. The swing frame includes a swing frame pivotally supported so as to be rotatable by 90 °, and a pusher frame having push means for pushing out a molded product held by the swing frame. Automatic loading / unloading device for foamed resin molded products.