JP3046637B2 - Drive control unit for taking out molded product - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molded product take-out head drive control device for controlling the driving of a product take-out head of a molded product take-out device connected to a resin molding machine.

[0002]

2. Description of the Related Art FIG. 7 shows a typical example of an injection molding machine for producing a resin molded product.
81 is an injection unit and 82 is a mold clamping unit. The injection unit 81 is provided with a hopper 83, a kneading screw 84, and an injection nozzle 85. Also, the mold clamping unit 82
Are provided with a fixed mold 87 provided on a fixed platen 86, and a movable mold 89 provided on a movable platen 88 movably provided in a direction away from and fixed to the fixed platen 86. 90 is a tie bar for guiding the movable platen 88, and 91 is an oil cylinder for moving the movable platen 88.

In an injection molding machine having such a configuration, an injection nozzle 85 is provided while a movable mold 89 is in close contact with a fixed mold 87.
The molten resin is injected into the molding space formed by the two dies, and cooled and solidified to produce a molded product. Next, the movable mold
With the 89 opened and separated from the fixed mold 87, the take-out head of the molded product take-out device enters the take-out space between the two, and the molded product normally attached and held by the movable mold 89 is It is ejected by the ejection head.

More specifically, as shown in FIG. 6, after a molded product is manufactured in a resin molding machine, a movable mold 89 that has been in close contact with a fixed mold 87 is completely opened, so that an unloading space S is formed. Once formed, the take-out head 5 moves in the direction of entry into the take-out space S (hereinafter also referred to as the "X direction") and stops at a predetermined position S1 in the take-out space S. Further, the movable die 89 moves in a direction following the take-out opening (hereinafter also referred to as “Y direction”), stops at a predetermined position S2 near the take-out opening of the movable mold 89, and takes out the molded product. As described above, it is necessary for the ejection head to perform both the operation of moving into the ejection space and the operation of moving the mold toward the ejection opening. These series of operations are performed by the molding product ejection head drive control device. Is controlled by

[0005]

However, in the conventional drive control device for taking out a molded product, the drive control mechanism for surely performing these operations is complicated, so that the molded product take-out device is sufficiently small. And the production cost of the device was increased, and the durability of the device was insufficient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a molded product take-out head drive control device capable of easily controlling the take-up head drive.

[0007]

SUMMARY OF THE INVENTION A molded product take-out head drive control device of the present invention is a molded product take-out head drive control device for controlling the drive of a product take-out head of a molded product take-out device. Take-out head connection means movably connected via a guide rod fixed to the frame, a movable frame running on the guide rod by a driving force from a drive mechanism, and a cross slide mechanism extending obliquely on the movable frame. First guide means for guiding the take-out head connecting means in the direction in which the guide rod extends, and a direction intersecting the direction in which the guide rod extends while stopping the take-out head connecting means guided and moved by the first guide means. And second guide means for guiding the second guide.

[0008]

When the movable frame travels on the guide rod by the driving force from the drive source, the take-out head connecting means is guided by the first guide means and moves in the direction in which the guide rod extends. When the take-out head connecting means reaches a predetermined position, a part of the driving force from the driving source is converted into a moving force in a direction intersecting the direction in which the guide rod extends by the cross slide mechanism and the second guide means. The take-out head connecting means is guided by the second guide means and moves in a direction intersecting the direction in which the guide rod extends. This allows the ejection head connected to the ejection head connecting means to perform both operations of entering and retracting the ejection space and approaching and retracting the ejection head to the mold.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the drawings. 1 to 3 are schematic views showing one embodiment of the present invention.

The drive control device for a molded product take-out head according to this embodiment travels on the guide rod 15 by a driving force from a base frame 10, two guide rods 15 fixed to the base frame 10, and a driving mechanism. A take-out head connecting means 50 movably connected to the movable frame 30 via a cross slide mechanism 40 extending obliquely on the movable frame 30.
The first guide means 60 for guiding the take-out head connecting means 50 in the direction in which the guide rod 15 extends, and stopping the take-out head connecting means 50 guided and moved by the first guide means 60, and And second guide means 70 for guiding in a direction perpendicular to the direction of extension.

The base frame 10 is directly or indirectly fixed to a resin molding machine (not shown). Two guide rods 15 fixed to the base frame 10 are connected to a take-out space of the resin molding machine. It extends in the approach direction (X direction).

The drive mechanism includes a drive motor 21, pulleys 22, 23
And a drive belt 24 that moves with the X direction as a longitudinal direction. The drive motor 21 is a pulse control motor, so that the position of the movable frame 30 can be reliably controlled. The drive belt 24 is a timing belt, which prevents slippage with the pulleys 22 and 23.

The movable frame 30 includes two guide rods 15.
Is slidably provided. In addition, the movable frame 30,
The lower end 31 holds a part of the drive belt 24, and can travel on the guide rod 15 following the movement of the drive belt 24.

On the movable frame 30, there is provided a take-out head connecting means 50 connected via two rows of cross slide mechanisms 40 extending obliquely. Cross slide mechanism 40
Is a slider mechanism composed of a roller gauge 43 fixed to the movable frame 30, a roller gauge 45 fixed to the take-out head connecting means 50, and a bearing roller 44, as shown in FIG. The roller gauge 45 slides with respect to the roller gauge 43. Thereby, the take-out head connecting means 50 can move linearly in the oblique direction with respect to the movable frame 30. In the figure, L indicates a roller gauge 45 when the roller gauge 43 is fixed and considered.
The movable range of the movable frame 30
The movement of the take-out head connection means 50 with respect to is a finite linear movement.

The take-out head connecting means 50 includes a regulating roller.
51 and an auxiliary roller 52 are each supported by a shaft, and a take-out head (not shown) is connected thereto.

The first guide means 60 comprises a regulating plate fixed to the base frame 10 whose longitudinal direction is in the X direction. The first guide means 60 is in contact with the regulating roller 51 and the auxiliary roller 51 on the regulating surface 60A and the regulating surface 60B, and is in a state of being sandwiched between the regulating roller 51 and the auxiliary roller 52. When the regulating roller 51 and the auxiliary roller 52 roll on the regulating surface 60A and the regulating surface 60B of the first guide means 60, the take-out head connecting means 50 moves in the X direction while the movement in the Y direction is prohibited. I do. Numeral 64 denotes a notch provided in the first guide means 60. This notch 64
Is formed by notching a part of the regulating surface 60B with which the auxiliary roller 52 contacts when the regulating roller 51 contacts the second guide means 70 and movement in the X direction is prohibited. is there.

The second guide means 70 is fixed to the base frame 10 at the end of the guide rod 15 extending in the X direction. The second guide means 70 has a regulating surface 70A which comes into contact with the regulating roller 51 and stops the take-out head connecting means 50. Have.

According to the above configuration, the drive motor 21
When the drive belt 24 moves after the driving of the movable frame 30 starts, the movable frame 30 moves in the X direction following this. At this time, since the first guide means 60 is sandwiched between the regulating roller 51 and the auxiliary roller 52, the take-out head connecting means 50 is prohibited from freely moving in the Y direction. Then, the regulating roller 51 that rolls and moves on the regulating surface 60A,
When the second guide means comes into contact with the regulating surface 70A, the movement of the take-out head connecting means 50 in the X direction is stopped. When the take-out head connecting means 50 is in this position, the auxiliary roller 52 reaches the notch 64 formed in the first guide means 60 and can enter and move into the notch 64, so that the take-out can be performed. The movement of the head connection means 50 in the Y direction is allowed.

In this state, X from the drive motor 21
A part of the driving force in the direction
It is converted into a moving force for moving in the direction. That is, the driving force P in the X direction as shown in FIG. 5, it can be decomposed into a component force P ₁ and this perpendicular direction component force P ₂ in the sliding direction of the cross slide mechanism 40. Component force P ₁ is, X
Take-out head connection means 50 whose movement in the direction is prohibited
Is a moving force for moving the movable frame 30 backward in the oblique direction. Also, the component force P ₂ is calculated by dividing the component force P _{2X in the} X direction by Y
When decomposed into the component force P _2Y in the direction, the component force P _2X becomes a moving force for moving the movable frame 30 backward in the direction opposite to the X direction, and the component force P _2X moves the extraction head connecting means 50 in the Y direction. It is a moving force. Then, the regulating roller 51 rolls in the Y direction on the regulating surface 70A of the second guide means 70 by the moving force P _2Y for moving in the Y direction, whereby the take-out head connecting means 50 moves in the X direction. Is moved in the Y direction in a state where is prohibited. Since the moving distance of the movable frame 30 with respect to the take-out head connecting means 50 is finite, the take-out head connecting means 50 stops at a predetermined position.

Thus, the take-out head connecting means 50
After moving a certain distance in the X direction, it moves in the Y direction and stops at a predetermined position. Therefore, take-out head connection means
The removal head connected to 50 ensures that the molded product is removed from the mold. The removed molded product is
It is stored in a predetermined place via a pipe or the like provided on the take-out head.

After the removal of the molded product is completed, the drive motor 21
The movable frame 30 and the take-out head connecting means 50 are returned to the original positions by rotating the movable frame 30 in the reverse direction. Then, the next molded product is manufactured and taken out again through the same process as described above. According to the above configuration, both the operation of entering and retreating the ejection head into the ejection space S and the approach and retreating of the ejection head to the mold can be performed by the driving force from one drive source. .

[0022]

According to the present invention, the drive control device for a molded product take-out head is a simple driving mechanism using a single drive source. Both the approach and retreat of the head to the mold can be performed with high accuracy,
The durability of the device is also excellent. This makes it possible to reduce the size of the molded product take-out device and reduce the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing an embodiment of a molded product take-out head drive control device of the present invention.

FIG. 2 is an explanatory side view showing one embodiment of a molded product take-out head drive control device of the present invention.

FIG. 3 is an explanatory sectional view showing an AA section of the molded product ejection head drive control device in FIG. 1;

FIG. 4 is a perspective view for explaining a cross slide mechanism constituting the molded product take-out head drive control device of the present invention.

FIG. 5 is an explanatory diagram showing a force acting on a take-out head connecting means.

FIG. 6 is an explanatory diagram showing the operation of the take-out head.

FIG. 7 is an explanatory view schematically showing an example of a resin molding machine.

[Explanation of symbols]

 10 Basic frame 15 Guide rod 21 Drive motor 22 Pulley 23 Pulley 24 Drive belt 30 Movable frame 31 Lower end 40 Cross slide mechanism 43 Roller gauge 44 Bearing roller 45 Roller gauge 50 Take-out head connection means 51 Restriction roller 52 Auxiliary roller 60 First guide Means 60A Control surface 60B Control surface 64 Notch 70 Second guide means 70A Control surface 81 Injection unit 82 Mold clamping unit 83 Hopper 84 Kneading screw 85 Injection nozzle 86 Platen 87 Fixed mold 88 Movable platen 89 Movable mold 90 Tie bar 91 Oil cylinder

──────────────────────────────────────────────────の Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B29C 33/44 B29C 45/40-45/42 B22D 17/22

Claims (1)

(57) [Claims] 1. A molded product take-out head drive control device for controlling the driving of a product take-out head of a molded product take-out device, comprising: a base frame, a guide rod fixed to the base frame, and a driving force from a drive mechanism. A movable frame running on the guide rod, a take-out head connecting means movably connected via a cross-slide mechanism extending obliquely on the movable frame, and a guide for guiding the take-out head connecting means in a direction in which the guide rod extends. A first guide means, and a second guide means for stopping the take-out head connecting means guided and moved by the first guide means and guiding the take-out head connecting means in a direction intersecting with the direction in which the guide rod extends. And a molded product take-out head drive control device.