JPH07186170A - Method for unloading molding and its unloading apparatus - Google Patents

Abstract

PURPOSE:To prevent the surface flaw of a molding from occurring and to avoid restriction of design on the rear face shape of the molded article without using a large mold. CONSTITUTION:A chuck mechanism 70 for unloading a molding on a slide base 50 provided with a skin feeding mechanism 60 and the molding is held by means of the chuck mechanism 70 when a skin is set and unloading of the molded article is automatized by releasing the chuck out of the mold and placing it on a conveyer 80 while the molding is protected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for taking out a molded product for automatically taking out a molded product after mold press molding and a device for taking out the molded product.

[0002]

2. Description of the Related Art For example, a method and a device for taking out a molded product formed by mold press molding
The applicant has previously applied for Japanese Patent Application No. 4-172718.

As shown in FIG. 9, in this product, a molded product flip-up take-out unit 2 is installed on the rear side of the lower mold 1, and after molding press molding, the ejector pin 1a arranged on the lower mold 1 is used. After pushing up the molded product M upward, the slide member 2a of the molded product flip-up take-out unit 2 enters between the lower mold 1 and the molded product M, and the rotary plate 2b at the tip of the slide member 2a rotates. When the molded product M is flipped up and the skin throwing machine 3 enters the space inside the mold of the lower mold 1 and the upper mold 4, the scraper 5 installed at the tip of the skin throwing machine 3 causes Since the skin throwing machine 3 slides while pushing out the trailing edge, the molded product M naturally drops from the upper surface of the lower mold 1 to the shooter 6.

[0004]

As described above, in the molded product take-out method and the take-out device for automatically taking out the molded product after the mold press molding, the molded product flip-up take-out unit 2 is provided on the rear side of the lower mold 1. It has to be installed in the mold, which causes the mold to become large and is a major factor in raising the mold cost.

Further, the molded product M, which is ejected upward by the ejector pin 1a, is flipped up in an inclined manner by the molded product flip-up and take-out unit 2, and thereafter, the scraper 5 provided in the skin throwing machine 3 which enters the mold. Since it is pushed out by the scraper 5 and dropped onto the shooter 6, there is a problem that the product is easily scratched when pushed out by the scraper 5 or dropped onto the shooter 6.

In addition, the back surface of the molded product M is set to have a complicated shape because a clip seat, a boss, a rib, etc. are installed on the molded product, but the slide member 2a of the molded product flip-up take-out unit 2 is used as a lower mold. Since the clip seats, bosses, and ribs are obstacles when entering between the 1 and the molded product M, the molded product flip-up take-out unit 2 cannot be installed depending on the modeling shape of the product. Has to be taken out manually, so if you consider automation,
It has been pointed out that there is a problem in that the shape of the back surface of the molded product M is restricted by the shaping.

The present invention has been made in view of the above circumstances, and can be implemented in an automatic take-out method of a mold press-molded article and its take-out apparatus without increasing the size of the mold, and damage such as scratches. An object of the present invention is to provide a method for taking out a molded product and a device for taking out the molded product, which can be surely prevented and in which the restriction on the shaping of the back surface shape of the molded product can be relieved significantly.

[0008]

In order to achieve the above object, the present invention provides a slide base provided with a skin feeding mechanism in the space inside the upper and lower molds as the upper mold rises after mold press molding. During the setting operation of the skin material into the upper mold by the skin feeding mechanism, the chuck mechanism provided on the lower side of the slide base chucks the molded product pushed up by the ejector pin, and then the slide base It is characterized in that the molded product is taken out of the mold by the sliding operation, and then the chuck mechanism holding the molded product is lowered to place the molded product released from the chuck mechanism on the conveyor.

Further, the take-out device used in the present invention is
A slide base that reciprocates between the inside and outside of the upper and lower molds, a skin insertion mechanism that is vertically movable on the upper surface side of this slide base, and a vertically movable movement on the lower surface side of the slide base. It is characterized by comprising a chuck mechanism for chucking the molded product inside the mold and releasing the chuck of the molded product outside the mold.

Further, as a chuck mechanism for a molded product, a plurality of vacuum pads connected to the vacuum mechanism
The surface of the molded product may be held by suction, or the pair of link arms may be rotated by the operation of the arm driving cylinder to hold the end of the molded product.

[0011]

[Function] As is apparent from the above configuration, since the structure is such that the pickup chuck mechanism for picking up the molded product is installed on the lower surface side of the slide base on which the skin loading mechanism is set, the flip-up pick-up unit is set for each mold. You don't have to.

Furthermore, since the molded product pick-up chuck mechanism holds the molded product pushed up above the lower mold, takes it out of the mold, and places it on the conveyor, there is a problem that the surface of the molded product is scratched. Disappear.

Further, since the molded product is chucked by sucking and holding the surface of the molded product with a vacuum pad or holding the ends of the molded product with a pair of link arms, the back surface of the molded product has a complicated shape. However, there is no problem in taking out. In addition, it is excellent in versatility by exchanging the chuck mechanism for taking out molded products.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a molded product takeout method and takeout apparatus according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a partially cutaway side view for explaining the general construction of a molded product take-out apparatus and a mold press molding apparatus according to the present invention, and FIGS. 2 to 7 are each a molded product take-out method according to the present invention. It is each side view which shows a process.

First, the structure of the take-out device used in the take-out method of the molded product according to the present invention will be described together with the molding device.

In FIG. 1, first, the mold press molding apparatus comprises a lower mold press molding die 10 and an upper and lower mold press molding die 20 that engages with the lower mold press molding die 10. It is generally configured by an injection molding machine 30 connected to the lower mold press molding die 10.

More specifically, the lower mold 10 has a hot runner 11 and a plurality of gates 1 branched from the hot runner 11.
2 is provided, and after mold press molding,
Ejector pins 13 that project the molded product are provided.

On the other hand, the upper die 20 is connected to the elevating cylinder 21 so as to be movable up and down by a predetermined stroke. The upper die 20 has a predetermined space on the outer periphery of the die surface for setting the skin. A set pin 22 is provided.

Then, the molten resin supplied from the injection molding machine 30 is distributed and supplied to predetermined positions on the mold surface of the lower mold 10 through the hot runner 11 and the gate 12, and the upper and lower molds 1 are
It is molded into a desired curved surface shape along the mold surface shape by tightening 0 and 20 engagement pressure.

Next, the molded product take-out device 40 will be described. The take-out device 40 is installed above the slide base 50 and a slide base 50 that slides between a position shown by a solid line and a position shown by a dotted line. The outer skin introducing mechanism 60 and a chuck mechanism 70 for taking out a molded product installed on the lower side of the slide base 50 are generally configured.

More specifically, the skin inserting mechanism 60 includes a skin mounting table 61 on which a sheet-shaped skin S is mounted,
Lifting cylinder 62 for moving the table 61 up and down
The chuck mechanism 70 for taking out the molded product is also provided with a vertically moving table 71 that can vertically move a predetermined stroke with respect to the slide base 50, and a cylinder 72 that drives the table, and also vertically moves. A plurality of vacuum pads 73 are installed on the table 71, and the vacuum pads 73 are connected to the vacuum mechanism 74.

Further, a link arm 75 for holding the end of the molded product is installed on the up-and-down moving table 71, and this link arm 75 can be rotated based on the pivot portion 76,
The link arm 75 can be rotated by the forward / backward movement of the arm driving cylinder 77.

Further, on the front side of the mold press molding apparatus, a conveyer unit 8 for picking up a molded product M after mold press molding by a take-out apparatus 40 according to the present invention and then placing it thereon.
0 is set.

The above is the apparatus 4 for taking out a molded product according to the present invention.
Although it has a configuration of 0, a chuck mechanism 70 for taking out a molded product
In this embodiment, a combination of the vacuum pad 73 and the link arm 75 is used, but only the vacuum pad 73 or the link arm 75 may be used.

Next, the method for taking out a molded product according to the present invention will be described in detail with reference to FIGS.

FIG. 2 shows a step of supplying the skin S to the skin loading mechanism 60. Normally, the skin S feeder loaded on the pallet 91 chucks the skin S loaded on the pallet 91 at the time of molding press molding to load the skin. It is supplied to the upper surface of the table 61.

Then, after the mold press molding is completed and the upper die 20 is lifted to the uppermost position, the slide base 50 enters the space inside the upper and lower dies 10, 20 as shown in FIG.

Next, the molded product M is pushed up by the ejector pin 13 and then, as shown in FIG. 4, the skin placing table 61 is raised by the operation of the lifting cylinder 62 with the slide base 50 as a reference, The epidermis S on the epidermis placement table 61 is the set pin 2 of the upper mold 20.
2 is pierced, and the epidermis S is set on the upper mold 20.

At the same time, the vertically moving table 71 is lowered by the operation of the cylinder 72 with the slide base 50 as a reference, and the vacuum pad 73 sucks the surface of the molded product M by the drive of the vacuum mechanism 74, so that the molded product M is held. While holding, the arm driving cylinder 76 also operates,
A pair of link arms 75 holds the upper and lower edges of the molded product M.

After that, as shown in FIG. 5, the skin placing table 61 is lowered by the operation of the lifting cylinder 62, and the vertical moving table 7 having the chuck mechanism 70 is provided.
1 rises while securely holding the molded product M.

Then, as shown in FIG. 6, the slide base 50 slides to move from the inside of the press die to the outside of the press die, and after stopping above the conveyor device 80, the vertically moving table 71 descends and Vacuum mechanism 7
4, the arm driving cylinder 76 moves backward, the chucking state of the chucking mechanism 70 is released, the molded article M is placed on the conveyor 80, and then the vertical movement is performed as shown in FIG. The table 71 rises and returns to its original position.

As described above, according to the method of the present invention, since the take-out device 40 in which the chuck mechanism 70 and the skin introducing mechanism 60 of the molded product M are provided on the slide base 50 is used, the conventional die is used for each mold. There is an advantage that it is not necessary to set up such a flip-up take-out unit and the like, and the die cost can be significantly reduced.

Further, the chuck mechanism 70 such as the vacuum pad 73 and the link arm 75 securely holds the molded product M, takes it out of the mold, and places it on the conveyor 80. Compared to the method of extruding with a scraper and using free fall, the molded product M
There are advantages that the surface is free from scratches and the quality performance is improved.

Since the vacuum pad 73 and the link arm 75 hold the chuck from the front surface side of the molded product M, there is no problem in taking out even if the rear surface of the molded product M has a complicated shape. Clip seats, bosses, ribs and the like can be freely set on the back surface of the molded product M, which has the effect of improving the degree of freedom in modeling.

In addition, since it is only necessary to replace the chuck mechanism 70, there is an advantage that the versatility is excellent.

In this embodiment, the fully automatic correspondence is explained, but if the take-out device 40 is moved in the lateral direction,
The front side of the mold press molding apparatus can be secured as a working space.

Further, as shown in FIG. 8, a molded product takeout device 40 may be installed on the rear side of the press molding device,
In such a case, the space on the front side of the molding device can be effectively utilized.

[0039]

As described above, according to the present invention, the following operational effects are achieved.

(1) Since the slide base, which is the drive base of the skin throwing machine, is provided with the chuck mechanism for taking out the molded product, it is necessary to set the flip-up take-out unit in the lower die as in the conventional case. In addition, the mold size can be reduced, the mold cost can be significantly reduced, and the cost can be reduced.

(2) Since the molded product is taken out by the chuck mechanism, the chuck mechanism is released outside the mold, and the molded product is placed on the conveyor, it is extruded by the scraper as in the conventional case. Compared with the method of automatically dropping onto the shooter, it is possible to reliably prevent the surface of the molded product from being scratched and improve the appearance quality performance.

(3) Since the molded product is taken out from the front side of the molded product by the chuck mechanism, even if the back surface of the molded product is complicated, it does not hinder the taking out. The seat, the mounting boss, the rib, and the like can be freely set, and the degree of freedom in shaping the back surface shape of the molded product can be dramatically increased.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing a schematic configuration of a molded product take-out apparatus and a molding apparatus according to the present invention.

FIG. 2 is a side view showing a step of supplying the epidermis.

FIG. 3 is a side view showing one step of the method of the present invention, showing a sliding operation state of the take-out device.

FIG. 4 is a side view showing one step of the method of the present invention, showing a chuck state of a chuck mechanism in the take-out device.

FIG. 5 is a side view showing one step of the method of the present invention, showing a state where a molded product is held by a take-out device.

FIG. 6 is a side view showing one step of the method of the present invention, showing a state where a molded product is taken out by a take-out device.

FIG. 7 is a side view showing one step of the method of the present invention, showing a state in which a molded product is taken out and then placed on a conveyor.

FIG. 8 is a plan view showing a modification example of the layout of the takeout device according to the present invention.

FIG. 9 is a side view showing a schematic configuration of a conventional automatic take-out device for molded articles.

[Explanation of symbols]

 10 Lower Mold for Mold Press Molding 13 Ejector Pin 20 Upper Mold for Mold Press Molding 22 Set Pin 30 Injection Molding Machine 40 Extraction Device of Molded Product 50 Slide Base 60 Skin Inserting Mechanism 61 Skin Mounting Table 62 Lifting Cylinder 70 Chuck Mechanism 71 Vertical Movement Table 72 Cylinder 73 Vacuum Pad 74 Vacuum Mechanism 75 Link Arm 77 Arm Drive Cylinder 80 Conveyor

Claims (5)

[Claims] 1. After the mold press molding, as the upper mold (20) rises, the space inside the mold of the upper and lower molds (10, 20),
Slide base (50) equipped with an epidermis loading mechanism (60)
The skin, and the skin material (S) by the skin feeding mechanism (60)
During the setting operation of the upper mold (20), the molded product (M) pushed up by the ejector pin (13) is chucked by the chuck mechanism (70) provided on the lower side of the slide base (50). , Then slide base (50)
The molded product (M) is taken out of the mold by
Next, a chuck mechanism (70) holding the molded product (M)
To lower the chuck mechanism (7) on the conveyor (80).
A method for taking out a molded product, characterized in that the molded product (M) released from 0) is placed. 2. A take-out device for a molded product (M) pushed up by an ejector pin (14) provided on a lower mold (10) after mold press molding, wherein the take-out device (40) is a vertical mold ( Slide base (50) that reciprocates between the inside and outside of the mold (10, 20)
And a skin loading mechanism (60) installed on the upper surface side of the slide base (50) so as to be movable up and down, and provided on the lower surface side of the slide base (50) so as to be movable up and down, and a molded product (M ) And a chuck mechanism (7) for releasing the chuck of the molded product (M) outside the mold.
0) and a take-out device for a molded product. 3. The chuck mechanism (70) is a molded product (M).
The vacuum mechanism (7
The device for removing a molded product according to claim 2, characterized in that the device comprises a vacuum pad (73) connected to (4). 4. A molded article chuck mechanism (70) is rotated by the driving of an arm driving cylinder (77) and comprises at least a pair of link arms (75) for holding the ends of the molded article (M). The device for taking out a molded product according to claim 2, which is configured. 5. The device for taking out a molded product according to claim 2, wherein the chuck mechanism (70) for the molded product is a combination of a vacuum pad (73) and a link arm (75).