JPS5919553Y2 - Casting product unloading device in die casting machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a casting discharge device in a die-casting machine.

Conventionally, known devices of this kind mainly transport the cast product from the mold using a combination of link mechanisms, resulting in a complex structure.Also, due to the restrictions imposed by the link mechanisms, it is difficult to utilize the narrow space of the mold opening gap. When transporting cast products, it was difficult to set the transport route.

In order to eliminate such drawbacks, the present invention includes a main arm having a gripping mechanism for a cast product and a mechanism for reversing the same, an auxiliary arm that is pivotally attached to the main arm and rotates by an appropriate drive mechanism, and a main arm. The present invention provides a casting delivery device for a die casting machine that transports the casting by a combination of cams that regulate movement.

To explain the embodiment of the present invention with reference to the drawings, 1 shows a fixed mold 2 and a movable mold 3 when the mold is opened in a die-casting machine.
It is a line-shaped main arm that is inserted between the two ends to carry out the casting, and has a gripping mechanism 4 consisting of a gripping claw for gripping the casting at one end, and the gripping mechanism 4 is reversed at the other end. It has a reversing mechanism 5 consisting of an actuator and the like.

Reference numeral 6 denotes an auxiliary arm, one end of which is fixed to the drive shaft 7 and driven by an appropriate drive mechanism built into the drive box 8, and the other end of which is rotatably attached to one end of the bracket 9 attached to the main arm 1. It is pivoted to.

A cam follower 11 is pivotally attached to the other end of the bracket 9, and is guided to the drive box 8 by a curved cam groove 12a of a cam plate 12.

By moving the drive box 8 using the air cylinder 13, the entire apparatus can be moved in a direction perpendicular to the mold surface of the die-casting machine.

To explain the mode of operation of the embodiment configured as described above, when the movable mold 3 is moved back and the mold is opened after casting, the signal causes a drive mechanism (not shown) to be activated. , the auxiliary arm 6 rotates counterclockwise in the figure, the cam follower 11 pivoted to the bracket 9 is guided to the curved cam groove 12a, and the main arm 1 moves between the fixed mold 2 and the movable mold 3. The state shown in FIG. 1 is reached.

Next, the drive box 8 is moved perpendicularly to the mold surface by the fluid cylinder 13 to bring the main arm 1 close to the movable mold 3, and the gripping mechanism 4 at the tip is used to move the biscuit part of the cast product A in the mold. grasp.

Then, the fluid cylinder 13 is moved in the opposite direction again and the cast product A is pulled out from the mold.

After that, when the auxiliary arm 6 is rotated clockwise, the main arm 1 moves into the curved cam groove 12 via the cam follower 11.
Guided by H, the casting A is carried out from between the fixed mold 2 and the movable mold 3, and when it reaches the maximum distance position, the auxiliary arm 6 stops, the reversing mechanism 5 is activated, and the casting including the gripping mechanism 4 is carried out. Product A
, and open the gripping claws to release the casting A.

At this time, the movement of the main arm 1 is determined by the relative position between the pivot point 10 of the auxiliary arm 6 and the cam follower 11, and the curved cam groove 1.
2a, and if these are selected appropriately, the main arm 1 moves approximately parallel to the mold surface while passing between the molds, as shown in FIG. It moves in a gentle curve outside the mold.

In the figure, ■, ■-11 [phase] indicates the movement locus of cast product A,
■', ■t @, r indicate the movement locus of the main arm 1, and ■'', ■''-1-[phase]'' indicate the cam follower 11.
This shows the movement trajectory of.

As described above, the present invention has a linear main arm that has a gripping mechanism 4 inserted between the fixed mold 2 and the movable mold 3 at one end and a reversing mechanism 5 for the gripping mechanism 4 at the other end. An auxiliary arm 6 driven by an appropriate drive mechanism in a drive box 8 is rotatably pivoted at a proper location on the main arm 1, and a cam follower 11 is provided on the drive box 8 at a proper location on the main arm 1. A cast product unloading device for a die casting machine is configured such that the drive box 8 is guided by one curved cam groove 12a, and the drive box 8 is moved in a direction perpendicular to the mold surface via an appropriate drive mechanism. Therefore, by using a simple mechanism consisting of a combination of a main arm, an auxiliary arm, and a cam, the cast product can be carried out between molds approximately parallel to the mold surface by simply moving the auxiliary arm in an arc. There is no risk of collision with various parts of the mechanism due to the inclination of the cast product, and since the operation of pulling out the cast product from the mold is performed by moving the entire device in parallel, the pull-out operation can be easily performed and there is no risk of damaging the cast product. In addition, since the main arm 1 is formed in a straight line in the present invention, the structure is simple and easy to manufacture, and the main arm 1 is pivotally connected to the auxiliary arm 6. The operation is stable because the main arm 1 is pivotally connected to the arm 1.
One curved cam groove 12 by one cam follower 11
Since the main arm 1 is guided by a, the main arm 1 can be guided smoothly, and the cast product can be carried out in a stable state without vibration during operation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of the device including a part of the die-casting machine, FIG. 2 is a side view of the device including a part of the die-casting machine, and FIG. 3 is an explanation of the operation. It is a diagram. DESCRIPTION OF SYMBOLS 1... Main arm, 2... Fixed mold, 3... Movable mold, 4... Gripping mechanism, 5... Reversing mechanism, 6...
・Auxiliary arm, 11...Cam follower, 12...
Plate cam, 12a...Curved cam groove.

Claims (1)

[Scope of utility model registration request] A drive box 8 is installed at an appropriate position on a linear main arm 1 which has a gripping mechanism 4 inserted between the fixed mold 2 and the movable mold 3 at one end and a reversing mechanism 5 for the gripping mechanism 4 at the other end. An auxiliary arm 6 driven by a drive mechanism in the drive box 8 is rotatably pivoted, and a cam follower 11 pivoted at an appropriate position on the main arm 1 is attached to an appropriately shaped cam follower 11 provided in the drive box 8. A cast product unloading device for a die casting machine, characterized in that the drive box 8 is guided by a curved cam groove 12a and is configured to move in a direction perpendicular to the mold surface via an appropriate drive mechanism. .