JPH037061Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a pedestal for receiving a core from a molding machine after molding a product and taking it out to the outside of the molding machine.

(Conventional technology) As a conventional technology, a drive device is used to provide a pedestal set at a predetermined height in advance and move it horizontally in a straight line between an intermediate position between the upper and lower molds of a molding machine and a position on the outside of the molding machine. As a result, when the upper and lower molds of the molding machine are separated in the vertical direction after molding, the cradle is moved to the intermediate position between the upper and lower dies to catch the core dropped from the upper mold, and then the cradle is Therefore, there was a structure in which the core was moved horizontally to the outside of the molding machine.

(Problems to be solved by the invention) In the above conventional method, the cradle simply moved horizontally in a straight line between the mold part and the outside part of the molding machine, If there is insufficient space on the side of the molding machine, it becomes difficult to install the cradle.

In addition, in the mold section of the molding machine, it is difficult to bring the pedestal close enough to the upper mold, which increases the impact when the core falls and may damage the core. On the outside, the pedestal was too high, making it difficult for an operator to remove the core from the pedestal.

The object of the present invention is to obtain a new cradle device for taking out the core of a molding machine that eliminates the above-mentioned drawbacks.

(Means for solving the problems) In order to achieve the above object, the present invention is constructed as follows.

That is, a lifting mechanism that includes a horizontally extending pedestal and moves the pedestal in the vertical direction, an intermediate position between the upper and lower molds in which the pedestal is spaced apart in the vertical direction of the molding machine, and the molding machine. The structure is such that a rotation mechanism for horizontal movement about a vertical axis is provided at an outer position of the holder.

(Function) Since the present invention has the above configuration, the pedestal moves in an arc due to the operation of the rotation mechanism, and
It reciprocates in the horizontal direction between the outside of the molding machine and the mold section of the molding machine.

In addition, due to the operation of the lifting mechanism, at one forward end, that is, at the upper and lower mold parts that are separated in the vertical direction,
The pedestal can move up and down to a height position where it is close to the core and a height position where horizontal movement can be performed smoothly. can be moved up and down to a height position where horizontal movement is performed smoothly and a height position suitable for the worker to take out the core.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

First, in the drawings, FIG. 1 is an explanatory side view showing the initial operating state of the pedestal device according to the present invention, and FIGS. 2 to 6 are explanatory side views showing each operating state thereof.

In FIG. 1, 1 is a mold device forming a molding machine, in which a movable platen 3 is arranged above a lower platen 2 on the fixed side so as to be movable up and down, and each platen 2, 3
A lower mold 4 and an upper mold 5 which are horizontally divided are engaged with opposite surfaces of the mold.

6 is a core, which is set so that when the upper mold 5 is divided upwardly from the lower mold 4 after product molding, it is held on the upper mold 5 side and moves upward; In this state, it is released from the upper mold 5 by the operation of a mold release rod (not shown) and is dropped.

Reference numeral 10 designates a pedestal for receiving the core 6, and includes a plate-shaped or fork-shaped receiving member 10b that extends in the left-right direction and is detachably attached to the left end of a movable plate 10a.

A is a drive device that moves the pedestal 10 horizontally and vertically, and includes a rotating mechanism 11 and a lifting mechanism 1.
6 and a control circuit 19 for driving and controlling these mechanisms 11 and 16.

The rotation mechanism 11 is constructed as follows.

That is, as shown in FIGS. 1 and 2, a base 12 is provided below the pedestal 10 to support the pedestal 10, and a support shaft 13 is directed downward at the center of the lower surface of the base 12. This support shaft 13 is rotatably fitted into a bearing 14 attached to a truck or a floor. Thereby, the pedestal 10 is supported rotatably about the vertical axis L.

Then, the rotation cylinder 15 is horizontally arranged and the right end of the cylinder case 15a (in FIG. 1)
is connected to a fixed member such as a frame so as to be rotatable about the vertical axis, and the left end of the cylinder rod 15b (in FIG. 1) is eccentrically connected to the base 12 in the front-rear direction with respect to the vertical axis L, As a result, the base 12 is reciprocated about 90 degrees about the vertical axis L by the reciprocating motion of the cylinder rod 15b.

That is, when the cylinder rod 15b moves toward the left and extends, the pedestal 10 horizontally rotates to the left, as shown in FIG.
0b is positioned between the upper and lower molds 5 and 4, and when the cylinder rod 15b moves toward the right and performs a shortening operation, the pedestal 10 horizontally rotates to the right as shown in FIG. The receiving member 10b is the mold device 1
It is set so that it is located on the outer right side of .

Further, the above-mentioned elevating mechanism 16 is configured as follows.

That is, the movable plate 10a and the base 12 are connected to each other by an X-shaped link mechanism 17.

In this link mechanism 17, each left end of a pair of link arms 17a, which are rotatably connected to each other at a longitudinally intermediate portion by a pin P1, is rotated by pins P2, P2 between the left end of the base 12 and the left end of the movable plate 10a. Furthermore, each right end of the link arm 17a is slidably connected only in the horizontal direction to the right end of the base 12 and the right end of the movable plate 10a by pins P3, P3 and long holes A and A.

As shown in FIG. 2, the lifting cylinder 18
is provided, and the lower end of the cylinder case 18a is rotatably connected to the intermediate portion of the base 12 in the left-right direction with a pin,
Connect the upper end of the cylinder rod 18b to the link arm 17.
A pin is rotatably connected to the lower left side of a.

When the cylinder rod 18b moves upward and extends, the movable plate 10a and therefore the receiving member 10b of the pedestal 10 move upward, and the cylinder rod 18b moves downward, as shown in FIG. 1 or 3. The receiving member 10b is set so as to descend as shown in FIG. 4 or 6 when the forward direction is shortened.

Further, the aforementioned control circuit 19 has a circuit configuration as shown in FIG.

That is, when the start button 21 is turned on, the elevating cylinder 18 is first extended.

As a result, as shown in FIG. 1, the pedestal 10 and therefore the receiving member 10b move upward to a mid-height position between the upper and lower molds 5 and 4 which are spaced apart in the vertical direction.

Next, the rotation cylinder 15 is operated to extend.

As a result, as shown in FIG. 2, the pedestal 10 and therefore the receiving member 10b horizontally rotate to the left and move between the upper and lower molds 5 and 4.

Next, the elevating cylinder 18 is operated for secondary extension. As a result, as shown in FIG.
approaches the lower part of the core 6, and in this state, the load sensor 20 is turned on, that is, waits until the core 6 falls.

Then, when the load sensor 20 is turned on, that is, when the core 6 falls onto the receiving member 10b, the elevating cylinder 18 is first shortened.

As a result, as shown in FIG. 4, the receiving member 10b
will fall to the height shown in Figure 2.

Then, the rotation cylinder 15 is operated to shorten.

As a result, as shown in FIG. 5, the pedestal 10 is horizontally moved to the right, and the receiving member 10b is moved to the right side of the mold apparatus 1.

The lifting cylinder 18 is then shortened secondarily.

As a result, the movable plate 10 as shown in FIG.
a. Therefore, the receiving member 10b is lowered to the level at which the worker takes out the core.

Note that the power source for the lifting and lowering mechanism and the rotation mechanism may be a motor with a reduction gear instead of a cylinder.
Further, the load sensor may be configured to perform the following operations using a timer relay.

(Effect of the invention) As is clear from the above explanation, according to the invention, the pedestal is moved horizontally and vertically about the vertical axis by the rotating mechanism and the lifting mechanism, respectively. , the pedestal will no longer move significantly laterally with respect to the molding machine.

Further, the pedestal can be brought close to the core being removed from the mold, and the core carried out to the outside of the molding machine can be moved to a height position suitable for the operator.

Therefore, with the present invention, the pedestal can be installed without requiring a large space on the side of the molding machine, and the core can be easily removed from the molding machine without damaging the core and with less effort. It produces the effect that can be achieved.

[Brief explanation of drawings]

FIG. 1 is an explanatory side view showing an embodiment of the present invention;
2 to 6 are explanatory side views showing each operation mode, and FIG. 7 is a flowchart. 1: Mold device, 2: Lower platen, 3: Upper platen, 4: Lower mold, 5: Upper mold, 6: Core, 1
0: pedestal, 10a: movable plate, 10b: receiving member, 1
1: Rotation mechanism, 12: Base, 13: Support shaft, 1
4: Bearing, 15: Rotating cylinder, 15a: Cylinder case, 15b: Cylinder rod, 16: Lifting mechanism, 17: Link mechanism, 17a: Link arm, 18: Lifting cylinder, 18a: Cylinder case, 18b: Cylinder rod, 19: control circuit,
20: Load sensor, 21: Start button.

Claims (1)

[Scope of utility model registration request] A lift mechanism that includes a pedestal extending horizontally and moving the pedestal in the vertical direction, and an intermediate position of the upper and lower molds in which the pedestal is spaced apart in the vertical direction of the molding machine, and an outside of the molding machine. 1. A drive device for a core take-out cradle for a molding machine, characterized in that it is provided with a rotating mechanism for moving horizontally about a vertical axis in both directions.