JPS6362717A - Removing device for molded product - Google Patents

Abstract

PURPOSE:To obtain a molded product removing device, sure in operation and high in reliability, by a method wherein the removing device is provided with a elevating member, driven upward by the moving force of a movable frame, and a molded product removing head, advancing between a fixed mold and a movable mold by the elevation of the elevating member. CONSTITUTION:When a molten resin is injected into a molding cavity formed by a fixed mold 17 and a movable mold 19 and the movable mold 19 is opened to a direction X after a molded product is manufactured by cooling and curing, a movable frame 36 is moved so as to follow the movement of the mold 19 and the whole of the removing device for the molded product is moved to the direction X. Then, the removing opening 71 of a molded product removing head 70, fixed to an elevating member 60, is set at a position, opposing to the molded product held by the movable mold 19, then, said molded product is attracted to the removing opening 70 by receiving a suction force and the molded product is retrieved into a predetermined retrieving place after passing through a suction pipe 72.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is provided in connection with a resin molding machine, is activated upon completion of the molding process, and is held in a movable mold of the resin molding machine. This invention relates to a molded product take-out device for taking out a molded product.

[Conventional technology and its problems]

A typical example of an injection molding machine for manufacturing resin molded products is shown in FIG. 7. In this figure, 10 is the resin molding machine body, 11 is an injection unit, 12 is a mold clamping unit, Hopper 13, kneading screener
14 and an injection nozzle 15, and the mold clamping unit 12 is provided with a fixed mold 17 provided on a fixed platen 16 and a movable platen 18 provided movably in a direction toward and away from the fixed platen 16. It has a movable mold 19. 20 is a tie bar for guiding the movable platen 18, and 21 is an oil cylinder for moving the movable platen 18.

In such an injection molding machine, with the movable mold 19 in close contact with the fixed mold 17, molten resin is injected from the injection nozzle 15 into the molding space formed by both molds, and is cooled and solidified to produce a molded product. be done.

Thereafter, the movable mold 19 is opened and separated from the fixed mold 17, and the molded product that is normally attached and held on the movable mold 19 is taken out by the molded product take-out device.

However, conventional molded product retrieval devices are basically configured independently from the resin molding machine, and therefore, the product retrieval head of the molded product retrieval device is
Control is such that the operation is started only after it is detected that the movable mold 19 has finished opening and it is confirmed that the head can enter safely.

However, in such a molded product removal device, the molded product removal head starts operating after the movable mold 19 is completely opened and enters between the molds, so accidents such as the head colliding with the mold are unlikely. However, there is a problem in that it takes a considerable amount of time for the molded product take-out head to reach the mold after the molding process is finished, resulting in low production efficiency.

[Purpose of the invention]

The present invention has been made to solve the above-mentioned problems, and is driven by the moving force of a movable mold of a resin molding machine, and the molded product take-out head is removed within a short time after the molding process is finished. To provide a device for taking out a molded product which is operated with high reliability and whose operation is reliable.

[Means for solving problems]

The molded product take-out device of the present invention is connected to a resin molding machine, and the movable mold of the resin molding machine moves away from the fixed mold after the molding process is completed by opening movement of the movable mold. A movable frame that moves in the same direction, a rising member provided on this movable frame that is driven upward by the moving force of the movable frame, and a rising member that is attached to this rising member and that moves the fixed frame when the rising member moves upward. It is characterized by having a molded product take-out head that enters between the mold and a movable mold spaced apart from the mold.

According to such a molded product take-out device, since the moving force of the movable mold of the resin molding machine is used as the driving force, it is closely linked with the resin molding machine, and therefore the molded product take-out head moves as the movable mold opens. As a result, molded products can be taken out in a short time, resulting in high production efficiency.

[Specific embodiments of the invention]

Figures 1 to 4 schematically show an embodiment of the molded product removal device of the present invention, with Figure 1 being a front view for explanation, Figure 2 being a plan view for explanation, and Figure 3 being a right side view for explanation. , and FIG. 4 are explanatory rear views, in which some parts are omitted to avoid complication.

In these figures, 30.31 is a horizontal substrate.

The substrates 30 and 31 each extend in the opening movement direction of the movable mold 19 (direction away from the fixed mold, hereinafter also referred to as "X direction"), and are spaced apart from each other in a direction perpendicular to the X direction. Fixed to resin molding machine.

32 is a guide rod provided on the substrate 30 and extending in the X direction;
33 indicates a rail extending in the X direction provided on the board 31,
As a result, a movable frame 36 having a slider 34 movable on the guide rod 32 and wheels 35 movable on the rail 33 at both ends is supported so as to be movable in the X direction. For attachment, a casing 38 having a Geneva mechanism, which will be described later, is suspended and supported via a plate 37. Further, a rack 41 is provided on the lower surface of the substrate 30 so as to extend in the X direction via a support member 42 with its engaging portion facing downward. This movable frame 36 has a connecting member (
(not shown) to the movable mold 19.

As shown in FIG. 5, the case 38 supported by the movable frame 36 has a first rotation shaft 45 and a second rotation shaft rotatably supported on the front wall 38^ and the rear wall 38B. 46, a first rotating shaft 45 projects forward from the front wall 38A, and a pinion 47 is attached to the outer end of the first rotating shaft 45.
It is fixed by interlocking with the Inside the case 38, a driver 50 of the Geneva mechanism is provided on the first rotation shaft 45, and a wheel 51 of the Geneva mechanism is provided on the second rotation shaft 46. back wall 3
A sector gear 53 is fixed to the outer end protruding from 8B.

FIG. 6 is an explanatory diagram of the Geneva mechanism, in which the first rotating shaft 4
The driver 50 fixed to 5 includes a disc SOA, a protruding pin 50111 provided on its outer periphery, and an arc-shaped protrusion 5.
0C, and the wheel 51 is formed by forming a radially extending slit 518 in each of a plurality of radially protruding tongue-shaped arms 51A (four in the example shown), and forming an outer layer between adjacent arms 51A. The width of the slit 51B of the wheel 51 is made to match the outer diameter of the protruding pin 50B of the driver 50, and the outer circumferential surface of the protrusion of the driver 50 matches the outer diameter of the protruding pin 50B of the driver 50. It has a curvature that matches the arc edge 51C.

A vertically extending rack 62 is meshed with the fan-shaped gear 53, and the rack 62 is fixed to the rising member 60. The rising member 60 is slidably held by a pair of guide rods 61A and 61B that are fixedly arranged on the case 38 and extend up and down. A molded product take-out head 70 is fixed to the rising member 60. When the sector gear 53 is rotated by driving the second rotating shaft 46 in the Geneva mechanism, the rack 62 is raised or lowered, and the rising member 60 and the molded product take-out head 70 are raised or lowered accordingly.

The molded product take-out head 70 includes, for example, a take-out volume lower 1 for suctioning and taking out the molded product, and a suction vibrator 72 connected to this opening lower lower 1, and the movable mold 1
After the movable mold 19 moves in the X direction, the molded product held by the movable mold 19 is sucked into the open lower part 1, and then passed through the suction vibrator 72 and collected.

According to the apparatus of the above embodiment, a molded product can be taken out in the following manner. Figures 8 (a) to (d) are
FIG. 3 is an explanatory diagram sequentially showing a process of taking out a molded product.

As shown in FIG. 8(a), in a resin molding machine, molten resin is injected into the molding space formed by both molds with the movable mold 19 in close contact with the fixed mold 17, and then it is cooled and solidified. After manufacturing a molded product, as shown in FIG. 8(B), when the movable mold 19 is opened and moved in the X direction, the movable frame 36 moves following the movable mold 19, and thereby The entire molded product removal device 100 starts moving in the X direction. On the other hand, when the movable frame 36 starts moving in the X direction, the shaft of the binion 47 moves in the X direction following the movable frame 36, so the binion 47 is moved around its rotation axis ( The first rotating shaft 45) is rotated.

When the I-th rotating shaft 45 starts rotating in this way,
In the Geneva mechanism, the driver 50 starts rotating, but the wheel 51 remains stopped until the protruding pin 50B engages with the slit 51B of the wheel 51. When the protruding pin 50B engages with the slit 51B, the rotating shaft (second rotating shaft 46) of the wheel 51 starts rotating in a manner unique to the Geneva mechanism. This second
When the rotating shaft 46 starts rotating, the sector gear 53 connected to the second rotating shaft 46 starts rotating, as shown in FIG. The ridge 62 rises, and following this, the rising member 60 moves upward while sliding on the guide rods 61A and 61B.

Then, in the Geneva mechanism, when the protruding pin 50B of the driver 50 separates from the slit 51B of the wheel 51, the rotation of the wheel 51 stops, thereby causing the second
The rotation of the rotating shaft 46 stops. As a result, Figure 8 (d)
As shown in FIG. 2, although the rising member 60 stops rising, it continues to move in the X direction, and the lower ejection volume 1 of the molded product ejecting head 70 fixed to the elevating member 60 is moved to the movable mold 19. It is set in a position opposite to the held molded product.

When the molded product receives suction force, it is sucked into the take-out volume lower 0 and taken out, and this is taken out by the suction vibrator 72.
and is collected at a designated collection location.

When the molded product is removed in this way, the movable mold 19 is moved in the opposite direction to the X direction, and the movable frame 36 is moved in the same direction following this movement. Therefore, by moving the movable frame 36 in the opposite direction, the first rotating shaft 45 and the second rotating shaft 46 in the Geneva mechanism rotate in the opposite direction, and as a result, the fan gear 53
As a result, the rising member 60 is moved in the downward direction, thereby returning the molded product removal device 100 to its initial state and position. In this state, the next molded product is manufactured and taken out through the same process as above.

According to the molded product take-out device of the above embodiment, the following effects can be obtained.

(1) The movable frame 36 is completely linked to the movement of the movable mold 19 of the resin molding machine and moves following the movable mold 19, and the molded product take-out head 70
Since the rising member 60 to which is fixed is raised or lowered by the moving force of the movable frame 36, the movable mold 1
During the movement in the opening movement direction of 9, the molded product take-out head 70 can be moved to a position facing the movable mold 19 by the rising member 60.

Therefore, after the opening movement of the movable mold 19 is completed, it is possible to take out the molded product immediately without waiting time, and as a result, it is possible to quickly start the manufacturing process of the next molded product, and eventually the molded product productivity can be significantly improved.

(2) Since the movable frame 36 is moved using the moving force of the movable mold 19 of the resin molding machine, and the rising member 60 is raised or lowered using the moving force of the movable frame 36, A dedicated moving drive source is not required in the molded product take-out device, and as a result, the structure is simple and the device can be easily miniaturized.

(3) A first rotating shaft 45 that rotates in response to the movement of the movable frame 36 is provided, a second rotating shaft 46 that rotates in response to the vertical movement of the rising member 60 is provided, and these first Since the rotary shaft 45 and the second rotary shaft 46 are connected by a Geneva mechanism so that rotational force is transmitted to each other, the speed change when the ascending member 60 ascends and descends follows a sine curve. As a result, the ascending and descending movements of the ascending member 60 can be performed with almost no mechanical impact force, and the durability and stability of the device can be improved.

Although one embodiment of the present invention has been described above, in the present invention, the specific configuration of each part is not limited to the above embodiment. may be transmitted to the rising member.

[Brief explanation of drawings]

1 to 4 are an explanatory front view, an explanatory plan view, an explanatory right side view, and an explanatory front view showing one embodiment of the molded product retrieval device of the present invention, respectively, and FIG. 5 is an explanatory front view of a case. FIG. 6 is an explanatory diagram showing the outline of the Geneva mechanism; FIG. 7 is an explanatory diagram showing the outline of an example of a resin molding machine; FIGS. 8 (a) to (d) 2A and 2B are explanatory diagrams sequentially showing a process of taking out a molded product. 10... Resin molding machine body 11... Injection unit 13... Hopper 14... Mixing screw 15... Injection nozzle 16... Fixed platen 17... Fixed mold 18... Movable platen 19...Movable mold 20...Tie bar 2
1... Oil cylinder 30.31... Board 32
...Guide rod 33...Rail 34...
Slider 35...Wheel 36...Movable frame
37... Mounting is on plate 38... Box body
41...Rack 42...Supporting member
38^...Front wall 38B...Back wall 45.
...First rotation shaft 46...Second rotation shaft 47.
... Binion 50... Driver 50^...
・Disc 50B...Protruding pin 50C...Protrusion 51...Wheel 51A...Arm 51
B...Slit 51C...Circular edge 53...
・Sector gear 60...Rising member 61^, 61
B... Guide rod 62... Rack 70... Molded product take-out head 71... Take-out opening 100... Molded product take-out device 2,,,-,19 夛6R Nest 7 decoy procedure correction (Spontaneous) February 19, 1988 Commissioner of the Patent Office Black 1) Mr. Akira 1, Indication of the case Japanese Patent Application No. 1983-205839 2, Name of the invention Molded product removal device 3, Person making the amendment Related Patent Applicant Address: 1-1-7 Uchikanda, Chiyoda-ku, Tokyo Name: Ushionychik Co., Ltd. 4, Agent 6 Contents of amendment [1] As shown in the engraving of the drawing originally attached to the application and attached sheet (No change in content) [2] Add one attached power of attorney.

Claims (1)

[Claims] 1) A molded product take-out device connected to a resin molding machine, in which the movable mold of the resin molding machine moves in the same direction as the movable mold moves away from the fixed mold after the molding process is completed. a movable frame, a rising member provided on the movable frame that is driven upward by the moving force of the movable frame; and a rising member attached to the rising member, which is separated from the fixed mold by the rising of the rising member. A molded product retrieval device comprising: a molded product retrieval head that enters between a movable mold and a molded product retrieval head.