JPS62152825A - Automatic take-up of multi-color molded product - Google Patents

Abstract

PURPOSE:To permit the efficient take-up of multi-color molded products by a method wherein take-up motion effected by an automatic take-up device is prohibited after molding a first molded product, and the take-up of the multi-color molded product, which is effected by the automatic take-up device, is effected after molding a second molded product integrally through injection molding. CONSTITUTION:A first fixed mold 21 and a movable mold 27 are clamped and molten synthetic resin is injected into the cavities thereof to mold a first molded product 43a between multi- color molded products 43. A movable board 19 is moved upward and a second fixed mold 23 is opposed to the movable mold 27. Subsequently, the movable mold 27 and the fixed mold 23 are clamped and the molten synthetic resin is injected into the cavities of the fixed mold 23 and the movable mold 27. According to this method, a second molded product 43b, integrated with the connecting surface of the first molded product 43a, can be molded. When a retreating signal for the movable mold 27 is inputted after molding the second molded product 43b, a chucking unit 41 is moved downward to chuck the multi-color molded products 43, then, the movable mold 27 is retreated and the multi-color molded products 43 are released from the movable mold 27. Subsequently, the chucking unit 41 is elevated to move it to a releasing position and releases the chucking of the multi-color molded products 43, thereby finishing take-up operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application 1] The present invention relates to a method for automatically taking out a multicolored molded product in which at least two types of molded products of different colors are integrally molded.

[Prior Art] Prior to the patent filed at the same time, the present applicant proposed that a first stationary mold and a second stationary mold, which were attached to a support member that moves up and down, be moved up and down J of the support member. The second molded product is made to face the movable mold one after another, and a second molded product is integrally injection molded to the first molded product molded by the first injection device N to form a multicolored molded product. A heavy forming method was proposed.

[Object of the Invention] The object of the present invention is that the applicant of the present application has +! i! It is an object of the present invention to provide an automatic method for taking out multicolor molded products, which can efficiently take out multicolor molded products molded by the proposed double molding method.

[Means for Solving the Problems] Therefore, the present invention allows the first and second fixed molds attached to the support member to face the movable mold in sequence by vertically moving the support member. The first molded product injection-molded by the q/I exit device of 1 is
In an automatic take-out method for a multi-colored molded product integrally injection-molded, when the movable mold and the first fixed mold are separated after the first index molding, the Prohibiting the movement of the jack part and regulating the take-out movement, and allowing movement of the jack part in at least two-dimensional directions when the movable mold and the second fixed mold are molded after the second injection molding. By doing so, and taking out the multicolor molded product held in the +1 working mold, an automatic method for taking out the multicolor molded product is constituted.

[Operation of the Invention] Since the present invention is configured as described above, after the first molded product is molded, the automatic take-out device is prohibited from taking out the product, and the second molded product is integrated with the first molded product. After injection molding, do you use an automatic take-out device? Since the multicolor molded product is taken out before the molding process, it is possible to improve the takeout efficiency of the multicolor molded product compared to the conventional takeout method in which a takeout operation is performed after each injection molding operation.

[Example] First, an example of a device for two-hand molding a multi-colored molded product according to the present invention and a take-out device that can be attached to the device will be described with reference to the drawings.

FIG. 1 is a perspective view schematically showing a multicolor molding device and a take-out device attached thereto, and FIG. 2 is a perspective view showing a moving mechanism for the first and second fixed molds, and the multicolor molding device A fixed platen 5 is provided at the center of the main body frame 3 of 1, and the fixed platen 5
Four rod rods 9 are horizontally suspended between the main body frame 3 and a support plate 7 provided on the left side of the body frame 3 as shown in the figure. A movable platen 11 is supported by the guide rod 9 so as to be slidable in the axial direction, and a mold clamping device 13 having a built-in hydraulic cylinder for mold clamping is connected to the movable VJ platen 11.

A first injection device 15 is arranged on the left side of the main body frame 3 as shown in the figure. This first injection device 15 includes a heating cylinder 15a having a built-in injection screw (not shown),
It is composed of a drive motor that rotationally drives the injection screw, and a heating cylinder operating member (both not shown) that moves the heating cylinder 15a in the axial direction of the injection screw. A through hole 5a (shown in FIGS. 3 and 4) is formed in the fixed plate 5, and the heating cylinder 15a is formed in the through hole 5a.
The injection nozzle at the tip is inserted.

A support frame 17 is erected on the fixed platen 5, and rail portions 17a are provided on both sides of the support frame 17. The support frame 17 also has a C” through hole 1711.
(shown in FIGS. 3 and 4) is formed corresponding to the heating cylinder 15a. A movable plate 19 serving as a support member is supported on the surface support frame 17 so as to be slidable in the vertical direction. Then, one movable plate has a first fixed mold 2.
The first and second fixed molds 23 form a hydraulic cylinder 2, which will be described later.
It is replaceable at the upper 1 position at intervals corresponding to the first stroke of the year in 5.
One iJ moving plate has a d through hole 19a (as shown in Figs. 3 and 4) for the first fixed mold 21 shown in The injection nozzle of the heating cylinder 15a is inserted into the Si through hole 19a.A hydraulic cylinder 25 attached to the main body frame 3 is connected to one of the movable plates. The movable plate 19 is moved up and down a required distance by the operation of the hydraulic cylinder 25.

The movable mold 27 is mounted on the movable platen 11, and the first fixed mold 2 is connected to the movable mold 27.
It is attached so as to face the first or second fixed mold 23.

A second injection device 29 is provided in the main body frame 3 and is perpendicular to the axis of the injection screw in the first injection device 15,
In addition, the movable mold 27 which is clamped is arranged to be located on the side of the second fixed mold 23. This second injection device 29 has a heated neck portion 29 similar to the first injection device 15.
a, a drive motor that rotationally drives the injection screw, and a heating cylinder operating member (none of which is shown) that reciprocates the heating neck portion 29a in the axial direction of the injection screw.

The fixed platen 5 includes an automatic take-out device 31, and a multicolor molding device 1.
It is attached so that it is located in the direction of the molded part F. The traveling frame 33 of the automatic extraction device 31 is located at the first injection 5A position 1.
The second injection device is formed to extend in a direction that is perpendicular to the injection screws 5 and coincides with the axes of the two screws of the second injection device, and a traveling body 35 is supported by the traveling frame 33 so as to be movable in the longitudinal direction. A left-right driving member (not shown) such as an air cylinder attached to the traveling frame 33 is connected to the traveling body 35, and the traveling body 35 is moved in the longitudinal direction of the traveling frame 33 by the left-right driving member. A longitudinal drive member (not shown) such as an air cylinder is attached to the traveling body 35, and a longitudinal moving body 37 is connected to the longitudinal driving member. A vertical drive member 39 is attached to the vertical drive member 39.
The chuck part 41 is made up of a plurality of opposing air cylinders or adsorption members (not shown).
is installed. As a result, the chuck portion 41 moves three-dimensionally by driving the left and right drive members, the front and rear drive members, and the up and down drive member 39, and takes out the injection-molded multicolor molded product to the outside of the multicolor molding apparatus 1.

Next, a multicolor molding method using the multicolor molding device 1 configured as described above and a method for taking out a multicolor molded product using the automatic takeout device 31 will be explained.

In FIG. 3 showing the first Q=I injection molding state and FIG. 6 showing an example of a multicolor molded product, at the start of the first injection molding II''i, the hydraulic cylinder 25 is operated downward and the J3 In this state, the first fixed mold 21 faces the movable mold 27. When the mold clamping device 13 is operated in this state, the waist J mold 27 is moved by the movement of the movable mold 27. The first fixed mold 21 etc. are clamped.

Next, when the heating cylinder operating member of the first injection device 15 is operated in this state, the heating cylinder 15a is moved to the first fixed mold 21.
The injection nozzle of the heating cylinder 15a is brought into pressure contact with the cuff of the first stationary mold 21.

Then, the molten synthetic resin is injected into the cavities of the first fixed mold 21 and the movable mold 27 by the injection screw rotated by the drive motor, and the first one of the multicolored molded products 43 shown in FIG. A molded product 43a is molded.

After the above injection molding, the heating cylinder 1 is moved back by the heating cylinder operating member.
5a retreats, and the heating cylinder 15 relative to the first fixed mold 21
The pressure contact of the injection nozzle a is released, and the mold clamping device 13 moves back to open the first fixed mold 21 and the movable mold 27. At this time, the first molded product 43a is held within the movable mold 27. Further, after the first fixed mold 21 and the movable mold 27 are opened, the automatic ejection device 31 is prohibited from operating.

In FIGS. 4 and 6 showing the second injection molding state,
When the hydraulic cylinder 25 is operated after the first injection molding, the movable fJ[19 moves upward according to the stroke of the hydraulic cylinder 25, causing the second fixed mold 23 to face the movable mold 27. Next, when the mold clamping device 13 is operated in this state, the movable mold 27 and the second fixed mold 23 are clamped.

Then, the heating cylinder 29a moves due to the operation of the heating cylinder operating member, and the injection nozzle is connected to the clamped movable mold 27 and the second
After pressing the fixed mold 23 into the cuff, the second fixed mold 2 is pressed by the injection screw rotated by the driving Tanabata.
Molten synthetic resin is injected into the cavity between the mold 3 and the movable mold 27.

The second molded product 43b is molded while being integrated with the joint surface of the held first molded product 43a. As a result, the 6th
As shown in the figure, multicolored molded products 43 of different colors are integrally injection molded. After the second injection molding, the second fixed mold 23 and the movable mold 27 are moved back and forth by the heating cylinder operating member.
The mold is opened. At this time, the multicolored molded product 43 is held within the movable mold 27.

In FIG. 5 showing the ejecting state, after the second injection molding, the chuck part 41 of the automatic ejecting device 31
It is located above between the fixed mold 23 and the movable mold 27. When a retraction signal for the movable mold 27 is input after injection molding of the second molded product 43b by the two second injection molding devices, the chuck portion 4 is driven by the vertical drive member 39.
1 is moved down to a position corresponding to the multicolor molded product 43. next,
The back and forth drive member drives the chuck part 41 to form the multicolored molded product 4.
Position it opposite to the runner or sprue of No.3.

After the multicolor molded product 43 is chucked by the operation of the chuck part 41, the chuck part 41 is moved backward by the back-and-forth movement of the front-rear driving member, and the multicolor molded product 43 is released from the movable mold 27. Next, the chuck part 41 is moved upward by the backward movement of the vertical drive member 39, and the multicolor molded product 43 is moved above the molding part of the multicolor molding apparatus 1. is moved to a release position corresponding to the side of the multicolor molding device 1. Then, the front and rear driving members and the vertical driving member 39 are driven according to the required release position to set the chuck part 4.
1 to a required position, the multicolor molded product 43 is released from being chucked by the chuck portion 41, and the take-out operation is completed.

In this way, in this embodiment, it is possible to efficiently take out the multicolored molded product 43.

[Effects of the Invention] Therefore, the present invention provides an automatic take-out method for multi-colored molded products that can efficiently take out multi-colored molded products molded by the double molding method proposed by the applicant. is possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a multicolor molding device and a take-out device installed therein, FIG. 2 is a perspective view showing a movement structure of the first and second fixed molds, and FIG. Figures 6 through 6 are explanatory diagrams showing the operation. In the figure, 15 is a first injection device, 19 is a movable plate as a support part, 21 is a first fixed mold, 23 is a second fixed mold,
27 is a movable mold, 29 is a second injection device, 41 is a chuck part, 43 is a multicolored molded product, 43a is a first molded product, 43
b is the second molded product. Patent applicant Kunika Chemical Co., Ltd. Agent Patent attorney Ken Ito - Figure 5 Transfer Figure 6

Claims (1)

[Claims] (1) By vertically moving the supporting member, the first and second fixed molds attached to the supporting member are successively opposed to the movable mold, and the first molded mold is injection-molded by the first injection device. In an automatic take-out method for a multi-colored molded product in which a second molded product is integrally injection-molded with the molded product by a second injection device, the movable mold and the first fixed mold are separated after the first injection molding. When the mold is opened, the movement of the chuck part in at least two dimensions to remove the first molded product is prohibited, and the movable mold and the second fixed mold are opened after the second injection molding. An automatic method for taking out a multicolor molded product, characterized in that when the multicolor molded product is removed, the chuck part is moved in at least two dimensions to take out the multicolor molded product held in the movable mold.