JPS6362719A - 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 title device is provided with a molded product removing set, advanced between a fixed mold and a movable mold by the elevation of an elevating member, while a mechanism, transmitting the moving force of a movable frame to the elevating member, is provided with a pinion, a rack and a Geneva mechanism. CONSTITUTION:When a mold 19 is opened to direction X after manufacturing a molded product by pouring molten resin into a molding cavity, formed by a fixed mold 17 and the movable 19, and cooling to cure it, a movable frame 36 is moved and the whole of a removing device is moved to the direction X. On the other hand, when the shaft of a pinion 47 is moved to the direction X and a rotary shaft 45 is turned by a rack 41, a driver 50 is turned in a Geneva mechanism, a projecting pin 50B is engaged with a slit 51B and the rotary shaft 46 of a wheel 51 is rotated. Then, a segment gear 53 is rotated, a rack 62, engaged with the segment gear, is elevated and an elevating member is elevated. When the projecting pin 50B of the driver 50 is released from the slit 51B, a molded product, held by the movable mold 19, is attracted to the removing opening 71 of the molded product removing head 70 fixed to the elevating member 60 and is retrieved 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, has a hopper 13, a kneading screw 14, and an injection nozzle 15, and a mold clamping unit 12 is provided with a fixed mold 17 provided on a fixed platen 16, and is movable in a direction toward and away from the fixed platen 16. It has a movable mold 19 provided on a movable platen 18. 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 completely and it is confirmed that the head can enter safely.

However, in such a molded product take-out device, the molded product take-out 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 occur. However, after the molding process is finished, it takes a considerable amount of time for the molded product take-out head to reach the predetermined position between the molds, resulting in a problem of low production efficiency. be.

[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 completed. It is an object of the present invention to provide a device for taking out a molded product which is operated and whose operation is reliable and highly reliable.

[Means for solving problems]

The molded product retrieval device of the present invention is a molded product retrieval device connected to a resin molding machine, which opens the movable mold by moving the movable mold of the resin molding machine away from the fixed mold after the molding process is completed. A movable frame that is moved in the same direction by the movement, 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 is caused by the rising of the rising member. a molded product take-out head that enters between a fixed mold and a movable mold spaced apart from the fixed mold; a pinion, a rack fixed to the resin molding machine main body so as to mesh with the pinion, and a Geneva mechanism for converting the rotational force of the pinion into the driving force of the rising member,
The rack is fixed to the resin molding machine main body so that its longitudinal position can be changed.

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.

The mechanism that transmits the moving force of the movable frame to the lifting member uses a pinion that is pivotally supported on the movable frame, a rank that is fixed to the resin molding machine body to mesh with this pinion, and a mechanism that increases the rotational force of the pinion. The rank is fixed to the resin molding machine body so that its longitudinal position can be changed.
By appropriately changing the fixed position of the rack in the longitudinal direction of the resin molding machine body, the rotation start position of the pinion when the movable frame starts moving can be changed, and as a result, the rotational force of the pinion can be increased. The Geneva mechanism for converting the force into a driving force for the member can variably adjust the timing at which the rising member starts rising.

In this way, the timing at which the rising member starts to rise can be changed as necessary, so the rising member can be driven upward in the optimal condition for opening the movable mold, resulting in extremely excellent operability. becomes.

[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 the 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. This movable frame 36 is connected to the movable mold 19 via a connecting member (not shown) so that it can move following the movement of the movable mold 19.

A rack 41 is placed on the bottom surface of the board 30 so as to extend in the
A pinion 47 is fixed to the outer end of a first rotating shaft 45 supported by a case 38, which will be described later, so as to mesh with the rack 41. The rack 41 and pinion 47 convert the moving force of the movable frame 36 in the X direction into the rotational power of the first rotational shaft 45, and the rotational power of the first rotational shaft 45 is transmitted via the Geneva mechanism described below. This is used as a driving force for raising and lowering the raising member 60.

The rack 41 is fixed to the main body of the resin molding machine so that its position in the longitudinal direction can be changed. That is, in this example, a long slide hole 81 is provided in the substrate 30, and the ridge 41 is screwed into the substrate 30 by a fixing screw 82, 82 extending through the long slide hole 81. Fixed. 83 is the base Fi30
and the head of the fixing screw 82.82 is a plate. Therefore, the fixing screw 82 is connected to the elongated hole 81.
By changing the fixing position of the rack 82, the fixing position of the rack 41 relative to the resin molding machine body in the longitudinal direction can be changed, and as a result, the rotation start position of the pinion 47 meshed with the rack 41 is changed. Accordingly, the rotation start timing of the second rotating shaft 46 is changed by the Geneva mechanism described later, and as a result, the rise start timing of the rising member 60 is changed.

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 38^, and a pinion 47 is fixed to the outer end thereof in mesh with the rack 41 as described above. 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. A fan-shaped gear 53 is provided at the outer end protruding from the rear wall 38B.
is fixed.

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 50A, a protruding pin 50B provided on its outer periphery, and an arc-shaped protrusion 50C.
Moreover, the wheel 51 is formed by forming a radially extending tongue 51B on each of a plurality of radially protruding tongue-like arms 51^ (4 in the example shown), and connecting the adjacent arms 51^ with each other. The width of the slit 51B of the wheel 51 is made to match the outer diameter of the protruding bottle 50B of the driver 50, and the outer peripheral surface of the protrusion of the driver 50 is formed on the outer periphery of the wheel 51. It has a curvature that matches the arc edge 51C of No. 51.

A vertically extending rack 62 is meshed with the fan-shaped gear 53, and the rough cross 2 is fixed to a rising member 60. The rising member 60 is slidably held by a pair of guide rods 1A 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 phase open lower 1 for suctioning and taking out the molded product, and a suction vibrator 72 connected to the open lower lower 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 10G starts moving in the X direction. On the other hand, when the movable frame 36 starts moving in the X direction, the shaft portion of the pinion 47 moves in the X direction following the movable frame 36, so the pinion 47 is moved around its rotation axis ( The first rotating shaft 45) is rotated.

When the first 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 bottle 50B engages with the slit 51B, the rotation shaft (second rotation shaft 46) of the wheel 51 starts rotating in a manner a specific 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 rack 62 rises, and the rising member 60 moves upward following this.

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 460 stops. As a result, Figure 8 (d)
As shown in FIG. 2 , the rising member 60 stops rising, but continues to move in the X direction, and the take-out phase opening lower 1 of the molded product take-out head 70 fixed to the rise member 60 moves toward the movable mold 19 . The molded product is held in a spaced position facing the molded product.

When the molded product receives suction force, it is sucked into the extraction phase opening lower 0 and taken out.
and is collected at a designated collection location.

When the molded product is finished being ejected in this manner, 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 are rotated in the opposite direction to the above, and as a result, the fan-shaped gear 53 causes the rising member to rotate. 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.

Then, if necessary, tighten the fixing screws 82°8 for the rack 41.
By changing the fixing position in the longitudinal direction by 2, the rotation start position of the pinion 47 meshed therewith is changed, thereby variably adjusting the rise start timing of the rise member 60 that is moved upward via the Geneva mechanism.

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 movement of the movable frame 36, the movable mold 19
While moving in the opening movement direction, the molded product take-out head 7
0 can be moved to a position facing the movable mold 19 by the raising 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 molded product of clothing, 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 mechanism for transmitting the moving force of the movable frame 36 to the rising member 60 is provided in the resin molding machine main body so as to be engaged with the pinion 47 that is pivotally supported by the movable frame 36. The rack 41 has a Geneva mechanism for converting the rotational force of the pinion 41 into a driving force for the rising member 60, and the position of the rack 41 in the longitudinal direction with respect to the resin molding machine body is changed. Therefore, by appropriately changing the fixed position of the rack 41 in the longitudinal direction with respect to the resin molding machine body, the rotation start position of the pinion 47 when the movable frame 36 starts moving can be changed. Therefore, in the Geneva mechanism, the protruding pin 50B of the driver 50 and the slit 51B of the wheel 51
The initial position of the slit 51 of the wheel 51 is adjusted.
The magnitude of the rotation angle until engagement with B is changed, and as a result, the rotation start timing of the second rotating shaft 46 is changed, and as a result, the rising member is driven upward by the rotational force of the pinion 47. 60 can be variably adjusted as appropriate. In this way, the timing at which the rising member 60 starts rising can be changed as necessary, so
The lifting member 60 can be driven upward in the optimum state for the opening movement of the movable mold 19, resulting in extremely excellent operability.For example, in a resin molding machine, the movable mold and the fixed mold can be replaced and separated. When forming a molded product in the form of , it is extremely convenient because the timing at which the rising member 60 starts rising can be adjusted to suit the size of the molded product.

(4) 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 rising member 60 can be moved up and down with almost no mechanical impact force, and as a result, the rising member 60 can be moved up and down with almost no mechanical impact force. It is possible to improve the durability and reliability of the device.

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

[Brief explanation of drawings]

1 to 4 are an explanatory front view, an explanatory plan view, an explanatory right side view, and an explanatory rear view showing one embodiment of the molded product retrieving device of the present invention, respectively, and FIG. 6 is an explanatory diagram showing an outline of the Geneva mechanism, FIG. 7 is an explanatory diagram showing an outline of an example of a resin molding machine, and 111 (a) to (d) are FIG. 2 is an explanatory diagram sequentially showing a process of taking out a molded product. 10... Resin molding machine body 11... Injection unit 13... Hopper 14... Kneading 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
38A...Front wall 38B...Back wall 45.
...First rotation shaft 46...Second rotation shaft 47.
...Pinion 50...Driver 50^...
・Disc 50B...Protruding bottle 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 81... Long hole for slide 82... Fixing screw 8
3... Tightening is plate 10G - Molded product removal device Ko 6 Figure 7 Procedural amendment (voluntary) February 19, 1988 Commissioner of the Patent Office Black 1) Akio Tono 1, Indication special of the case Application No. 61-205841 2, Name of the invention Molded product removal device 3, Relationship with the case of the person making the amendment Patent applicant address No. 7, 1-1 Uchikanda, Chiyoda-ku, Tokyo
Name: Ushio Utefuku Co., Ltd. 4, Agent 6, Contents of the amendment [1] As per the engraving of the drawings and attached sheet originally attached to the application (no changes to the contents) [2] One attached power of attorney will be added.

Claims (1)

[Scope of Claims] 1) A molded product take-out device connected to a resin molding machine, which moves the movable mold of the resin molding machine so as to move away from a fixed mold after the molding process is completed. a movable frame that is moved in the same direction by a movable frame, a rising member provided on the movable frame that is driven upward by the moving force of the movable frame; a molded product take-out head that enters between the mold and a movable mold spaced apart from the mold, and a mechanism for transmitting the moving force of the movable frame to the rising member is pivotally supported by the movable frame; a pinion, a rack fixed to the resin molding machine main body so as to mesh with the pinion, and a Geneva mechanism for converting rotational force of the pinion into driving force of the rising member, the rack; The molded product take-out device is fixed to the resin molding machine main body so that its position in the longitudinal direction can be changed.