JPS6137351A - Device for attaching lower metallic pattern and lifting plate of molding machine - Google Patents

Abstract

PURPOSE:To simplify the construction of a titled device and to reduce the cost thereof by the constitution in which the attachment and detachment of a lower metallic pattern and lifting plate are simultaneously, quickly and easily executed. CONSTITUTION:Metallic pattern clamping cylinders 5 are actuated to rise a metallic pattern clamping table 4 up to the positions where rail lifters 18 stand upright and receive rails 13, thereby standing upright the right and left rail lifters 18 and supporting the rails 13. The table 4 is then lowered and at the same instant when the lifters 18 lift the rails 13, the rollers 15 attached to the bottom ends of claws 14 for attaching the lower metallic pattern roll on the tapered parts of the lifters 18. The claws 14 are therefore opened against the tensile force of a spring 16 and the lower pattern assembly is made freely removable. A cam attached to a main shaft 23 turns at the same instant and the claws for attaching the lifting plate open as well by overcoming the tension of the spring to make freely movable the lower pattern. The lower pattern assembly (contg. the lifting plate and lifting pin) which is made freely removable is moved and is taken out of the molding position.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a lower mold and push-up plate mounting device in a mold making machine equipped with a horizontally split surface mold.In this type of mold making machine, the mold was conventionally bolted to the table from the upper surface of the gouly base. The push-up plate is mounted on a column (not fixed) to the push-up plate mounting base, and the return operation, that is, the lowering, is operated by its own weight, or a mechanism is adopted in which it is held on the bottom surface of the clamp table using a special long bolt. However, when replacing the mold, installing the lower mold and the push-up plate is dangerous because the mold to be replaced is heated and the place where it is installed is narrow. The replacement work will take a long time, and if the push-up plate and the push-up plate mounting base are not held, there will be sand on the sliding surfaces of the lower mold and push-up pin, which may cause continuous operation when they do not descend under their own weight. The current situation is that the operating capacity of the mold making machine is reduced.

Therefore, the present applicant proposes a lower mold and pusher plate mounting device for a horizontally split surface mold shell molding machine that solves the various drawbacks of the conventional method. However, even in the above-mentioned known invention, although the lower mold mounting operation and the push-up plate mounting operation are linked by a common power, a cylinder is used for this power, and the operation of the rail lift to separate the lower mold from the clamp table is required. are not linked.Therefore, there are many work procedures for replacing one mold, and
If the clamp table is lowered without releasing the lower mold tightening while the rail lifter is in the upright position (misoperation), there is a possibility that the mounting claws etc. will be damaged. As a result of various studies to solve the problem, the device of the present invention has been successfully developed. At the same time, the mounting operation of the lower mold mounting claw and push-up plate can be performed quickly and easily.・The power required for these operations is not required, simplifying the equipment and reducing costs. No damage to claws, push-up pins, etc.

The mechanism of the present invention will be explained in detail based on an embodiment shown in the accompanying drawings. FIG. 1 is a side view showing the main parts of the device of the present invention. The lower mold 2 is shown attached to the mold clamp table 4, and FIG. 2 is the lower mold 2 removed from the mold clamp table 4. A side view showing the installed (or before installation) condition, Figure 3 is the same as Figure 1.
4 is a front view taken from BB in FIG. 2, FIG. 5 is a partial sectional view of FIG. FIG. 7 is a detailed partial cross-sectional view showing the relationship between the mounting claws 10, and FIG. 7 is a detailed view showing the push-up plate mounting claw 10i opened by the cam 11. Lower mold die base, 4
indicates the mold clamp table. Reference numeral 5 denotes a mold clamp cylinder whose piston rod is fixed to the mold clamp table, and by the operation of the cylinder 5, the lower mold 2 and the upper mold (not shown) are combined or split. - 6 is a push-up plate mounting base (Fig. 5), and a plurality of push-up plate mounting claws 10 are opposed to each other via sub-shafts 24 rotatably provided on both sides of the push-up plate mounting base 6 (Fig. 5). A spring 25, which is individually fixed and attached to the countershaft 24, acts to keep the push-up plate mounting claw 10 in the "closed" state at all times. Reference numeral 7 denotes a push-up plate on which a plurality of push-up pins 9 are implanted, and a push-up plate metal fitting 8 that engages with the mounting claw 10 is provided on the lower surface of the push-up plate.

A cam 11 and a lower mold mounting claw 14 are fixed to both ends of a main shaft 23 rotatably provided on the mold clamp table 4. 013 is a rail that is attached to the side of the mold clamp table 4 and is moved up and down by the rail lifter 18 when replacing the mold. The rail lifter 18 is fixed to both sides of a lifter shaft 270 which is rotatably mounted on the bed 1, and when the mold is replaced, the rail lifter 18 can be raised up when replacing the mold.
012 is a push-up cylinder which acts to push up the lower mold mounting claw 14 as well as to open the lower mold mounting claw 14. Its piston rod is fixed to the push-up plate mounting base 6, and its operation causes the push-up pin implanted in the push-up plate 7 to open. 〇15, which functions to protrude or retreat 9 into the lower mold 2, is a roller.It is rotatably provided at the lower end of the lower mold mounting claw 14, and when replacing the mold, a part of the taper of the rail lift 18 is installed. Open the lower mold mounting claw 14 by rolling.

Reference numeral 17 denotes a locking metal fitting provided on the lower surface of the lower mold die base 6, with which the lower mold mounting claw 14 is locked.

20 is a roller rotatably provided on the side surface of the lower mold die base 3;
6. 16 is a spring that expands and locks the lower mold mounting claw 141/C. 19 is a mold clamp that functions to keep the lower mold mounting claw 14 in a normally closed state. A positioning pin provided on the top surface of the table 4 determines the mounting position of the lower mold die base 3.

21 is a guide rod provided on the clamp table 4.
2 is a guide rod provided on the push-up plate mounting base 6. Further, 26 is a stopper provided on the push-up plate mounting claw 10 for regulating the closed position of the push-up plate mounting claw 10, and 28 is a stopper provided on the side surface of the mold clamp table 4, with which the lower mold 2 is fixed. It acts to close the lower mold mounting claw 14 when it is not in the position.

The present invention is constructed as described above.

When replacing the lower mold, the operation of simultaneously attaching and removing (attaching and removing) the lower mold and the push-up plate will be described in detail below. The removal position of the mold, that is, the rail lifter 18 is upright and the rail 13
Raise the mold clamp table 4 to the position where it stops, and raise the left and right rail lifters 18 upright to support the rail 13 (as shown in Figures 2 and 4).Next, raise the mold clamp table 4 to the lowering end. When the rail lifter 18 comes into contact with the rail 16 and pushes up the rail 16, at the same time, the roller 15 attached to the lower end of the lower mold mounting claw 14 moves the taper provided on the rail lifter 18. Roll some. Therefore, the lower mold attachment claw 14 opens against the tension of the spring 16 (as shown in FIG. 2), and the lower mold assembly becomes in a state where it can be freely removed. This behavior.

At the same time, the cam 11 attached to the main shaft 26 rotates as shown in FIG.
It rotates around the secondary shaft 24 against the tension of Move in the direction of force (transfer of roller 20) and take out the lower mold assembly from the molding position. The zero-order mold clamp table 4 to be moved and fixed at the molding position is raised by the operation of the mold clamp cylinder 5, the rail lifter 18 is tilted down, and the mold clamp table 4 is lowered. Due to the force, the lower mold mounting claw 14 closes and locks with the locking metal fitting 17, and the push-up plate mounting claw 10 closes and locks with the push-up plate metal fitting 8 due to the tension of the spring 25, and the rail 13 further descends. (Situation shown in Figure 1).

The setting of the lower mold assembly on the mold clamp table 4 is completed.0 The apparatus of the present invention having the configuration detailed above can exhibit the following remarkable effects.2(1) Lower mold and push-up Attachment or detachment of the plate can be performed simultaneously quickly and easily. (2) No special power source is required, the device can be simplified, and costs can be reduced.

(3) There is no erroneous operation when replacing the mold assembly, and there is no damage to the lower mold mounting claw, push-up plate mounting claw, push-up pin, etc.

[Brief explanation of the drawing]

Fig. 1 is a side view showing an example of the device of the present invention, Fig. 2 shows a state in which the lower mold is removed from the mold clamp table (or before installation), and Fig. 3 is A-A in Fig. 1. Figure 4 is a front view viewed from Figure 2 B-8, Figure 5 is a front view viewed from Figure 1.
Fig. 6 is a detailed partial cross-sectional view showing the relationship between the lower mold mounting claw and the push-up plate mounting claw, and Fig. 7 is a detailed view showing the push-up plate mounting claw opened by a cam. C, in the figure. 1 is the bed, 2 is the lower mold, 6 is the lower mold die base.
4 is a mold clamp table, 5 is a mold clamp cylinder, 6 is a push-up plate mounting base, 7 is a push-up plate, 8
is the push-up plate metal fitting, and 9 is the push-up pin. 10 is a push-up plate mounting claw, 11 is a cam, 12 is a push-up cylinder, 13 is a rail, 14 is a lower mold mounting claw, 15 and 20 are rollers, 16 is a spring,
17 is a locking metal fitting, 18 is a rail lifter, 19 is a positioning pin, 21 and 22 are guide rods, 23 is a main shaft, 24 is a subshaft, 25 is a spring, 26 and 28
127 is the lifter shaft @ Figure 1 Foil Figure 5

Claims (2)

[Claims] (1) In a mold making machine, a plurality of lower mold mounting claws (14) for tightening the lower mold (2) and the mold clamp table (4) are connected to the clamp table (4) via the main shaft (23). A plurality of push-up plate mounting claws (10) are rotatably mounted on both sides of the push-up plate mounting base (6) via the countershaft (24), and the bed (1) is rotatably mounted on both sides of the bed (1). ) A lower mold and push-up plate mounting device for a mold making machine equipped with a horizontally split surface mold, characterized in that a pair of rail lifters (18) are provided on both sides of the upper surface so as to be freely inverted. (2) Mold manufacturing comprising the horizontally split surface mold according to claim 1, which has a mechanism in which the sub-shaft (24) is rotated via the cam (11) by the rotation of the main shaft (23). Machine's lower mold and push-up plate mounting device.