JPH0667543B2 - Vertical molding machine - Google Patents

Description

The present invention relates to a vertical molding machine such as a die casting machine and a molten metal casting.

(Prior Art) Conventionally, this main vertical molding machine is vertically slidable along the tie bar between a substrate fixed to the lower part of a tie bar standing up and down and a fixing plate fixed to the upper part. The movable plate is provided with a lower mold and an upper mold so as to face each other. Then, the cavity formed by these molds is filled with molten metal to form a product, and then the mold is opened and the product is released and taken out, and then the inner surface of the mold is cleaned and a release material is applied, Prior to the next casting, the fittings, cores, etc. are set in the mold, and the mold is closed and clamped for the next casting operation.

(Problems to be Solved by the Invention) In the above conventional technique, all the casting work is performed in the machine having a narrow working space, so that the product can be taken out after the casting and the mold can be cleaned with respect to the actual casting time. It takes a long time to do such work as
There is a problem that the entire casting work becomes long and is not preferable in terms of productivity.

The present invention has been made to solve the above problems, and the object of the present invention is to move the upper mold to the second station while leaving the lower mold at the first station, and A vertical molding machine that expands the work space so that work such as removal and cleaning of molds can be performed on the upper mold and the lower mold at the same time to improve work efficiency, and that multiple upper molds are provided to shorten the working time. To provide.

(Means for Solving Problems) A means for solving the above problems is to use a vertical molding machine that performs molding by injecting a molding material into a cavity formed by an upper mold and a lower mold. Second stations are respectively provided on both sides of a first station in which a lower die having a device is fixed, and the second stations are alternately provided between the second station and the first station on one side and between the second station and the first station on the other side. Reciprocating moving devices are provided, and each moving device is provided with an upper die. The first station has a clamp device for clamping the upper die moved to the first station on the lower die, and the upper die has an upper die. A mold opening / closing device for vertically moving the lower mold is provided, and a clamping device for clamping the upper mold that has moved to the second station, and a clamp device at each of the second stations. And an extruding device for releasing the product from the upper mold.

(Embodiment) Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying FIGS. 1 to 4.

(1) is a first station, and second stations (2) and (3) are arranged on the left and right sides thereof so as to be aligned. The first station (1) has an upper fixing plate (4),
It has a lower substrate (5) fixed to the base frame (6) and four tie bars (7) for connecting and fixing the four corners of the substrate (5) and the fixing plate (4). A movable plate (9) is slidably attached to the four tie bars (7) through a tubular member (8) so that the movable plate (9) is vertically slidable on the upper side of the movable plate (9). The mold (10) is fixed, and an injection device (11) for injecting molten metal is fixed to the lower part of the movable plate (9). In the injection device (11), a lower cylinder (11a) is fixed to a movable plate (9) via two connecting bars (11b) and (11b) penetrating the substrate (5). The injection rod (11c) of 11a) penetrates the substrate (5) and the movable plate (9), and is vertically slidably fitted in the tubular member (19) provided in the central portion of the lower mold (10). is doing. The cylinder (12a) of the mold opening / closing device (12) is fixed upward on the lower part of the substrate (5) and its rod (1
2b) penetrates the substrate (5) and is connected to the movable plate (9).

Two parallel rails (13) and (13) supported by the left and right second stations (2) and (3) are horizontal above the lower mold (10) and below the fixing plate (4). And the four rotatable rollers (14b) are supported on the guide members (13a) and (13a) of the rails (113) and (13).
A transport carriage (14) movable between the second station (3) and the first station (1) on the right side of the figure is the roller (14).
b) is placed via. An upper die (15) corresponding to the lower die (10) is disposed under the transport carriage (14), and the upper die (15) is fixed to the transport carriage (14) by four mold clamping devices ( 16)… The upper part is supported by.
Further, the lower part of the upper mold (15) has four sliding molds that open horizontally in four directions, but in the rail direction of the upper mold (15), the arm member (17) hanging from the transport carriage (14). , (17) are fixed to the slide type cylinders (18), (18) so as to face each other, and the tips of the rods (18a), (18a) are two slides that slide in the rail direction. It is connected to the dynamic type and can be opened and closed in the rail direction by the sliding type cylinders (18) and (18). The other two in the direction orthogonal to the rail
The two sliding types are opened and closed by the sliding type cylinders (31) ... Fixedly installed in the second stations (2) and (3).

In addition, a total of four clamp devices (20), two of which are arranged in parallel with the rails (13) and (13), are mounted on the fixing plate (4) to fix the cylinder (20a) to the fixing plate (4). The rod (20b) is fixedly attached to the fixing plate (4), and the rod (20b) penetrates the fixing plate (4) downward, and the lower end serves as an expanded pressing portion (20b-1). A protrusion (4a) hanging from the fixed plate (4) is provided below the rod (20b), and a rail is provided inside the rod (20b) and on the upper side of the transport carriage (14). An upper pressing part (14a) having a step part (14a-1) is provided in parallel, and the pressing part (2b-1) of the rod (20b) has entered below the step part (14a-1) and is conveyed. The dolly (14) can be moved to the second station (3).

Here, the upper and lower molds (1
Explain the movements of 5) and (10).

First, the carrier vehicle (14) stopped at a predetermined position in the first station (1) is pressed and fixed by the rods (20b) of the four clamp devices (20) provided on the fixed plate (4).
That is, the step portion (14a-) of the upper pressing portion (14a) of the carrier vehicle (14).
1) The pressing portion (20b-1) of the rod (20b) located in 1)
The cylinder (20a) to the upper part, and the rod (20b)
The upper part of the pressing part (20b-1) of the carriage is the step (14a) of the carriage (14).
-1) is hooked and pulled up, and the carrier vehicle (14) is fixed by pressing it onto the receiving portions (4b), (4b) provided on the lower portion of the fixing plate (4). Next, the rod (12b) of the mold opening / closing device (12) is pushed up by the cylinder (12a), and the movable plate (9) to which the lower mold (10) and the injection device (11) are fixed is attached to the tie bar (7).
Then, the lower mold (10) is aligned with the upper mold (15) of the upper part, and the mold is clamped to form cavities in the upper and lower molds (15) and (10). The injection rod (11) of the injection device (11)
After the cavity is filled with the molten metal poured into the tubular member (19) of the lower mold (10) by c) to mold the product, the lower mold (10) and the injection device are opened by the mold opening / closing device (12). The movable plate (9) having (11) is lowered to open the mold. In this case, the molded product still remains in the upper mold (15).

Next, on the left and right of the first station (1), extruding from the upper mold (15) of the product molded at the first station (1), and preparing the upper mold (15) for the next casting work. 2nd station (2),
(3) will be described. The left and right second stations (2), (3) have the same shape and the same function, but the second station (2) on the left side in FIG. 1 having the carrier vehicle (21) will be described as an example. To do. The carrier vehicle (21) reciprocates between the first station (1) and the second station (2), and reciprocates between the first station (1) and the second station (3). It is exactly the same as the dolly (14).

The second station (2) is fixed on the base (22) 4
An I-shaped beam (23a), (23b), (23c), (23d) and an upper fixing plate (24) connected and fixed to the beam (23) above the book (23a), (23b)
And (23c) and (23d) are similarly fixed to the other second station (3) on the inner upper side, and between the second stations (2) and (3) via the first station (1). The two connecting rails (13), (13) are fixed,
A carrier vehicle (21) is movably mounted on the upper part of the carriage along the rail. The carrier truck (21) is the carrier truck (1).
As with 4), there is a full-type clamp device (16) at the bottom of it.
Thus, the upper mold (15) having the same shape as the upper mold (15) of the first station (1) is fixed. Between the fixed plate (4) of the first station (1) and the upper fixed plates (24), (24) of the left and right second stations (2), (3), the connecting beam (25a), (25b), (26a), (26
b) is erected and fixed, and the connecting beams (25a), (26
As shown in FIG. 2, support beams (25c), (2) are provided at the respective ends of the upper fixing plates (24), (24) on the extension line of a).
6c) are connected and fixed, and the supporting beam (25c), the upper fixing plate (24) of the second station (2) on the right side in FIG. 1, and the rail direction at the bottom of each connecting beam (25b). The sliding cylinder (27) of the carrier truck (21) is fixed horizontally to the carriage, and the tip of the sliding rod (27a) is attached to the carrier truck (2).
It is connected to the upper part of 1). The upper part of the sliding rod (27a) has a guide member (2) provided below the connecting beam (25a).
Guided in the rail direction by 8), the carrier rod (21) reciprocates between the second station (2) and the first station (1) on the left side in FIG. 1 by the forward and backward movement of the sliding rod (27a). Let The carrier vehicle (14) at the first station (1) in FIG. 1 similarly has a support beam (26c), an upper fixing plate (24) at the second station (2) on the left side in FIG. 1, and a connection. The first station (1) and the second station (2) are fixed by the sliding cylinders (29) fixed to the respective lower parts of the beams (26b).
It will reciprocate between the stations (3).

The first fixing plate (24) of the second station (2) has the first
Clamping device (20) provided in the station (1) ...
Corresponding to, two clamp devices (20), (2
0) is provided, and when the carrier vehicle (21) moves to the second station (2), its upper pressing portion (21a).
The pressing portion (20b-1) of the rod (20b) of the clamp device (20) enters the lower part of the stepped portion (21a-1) of the carriage (2).
The carriage (21) is pressed and fixed to the receiving portions (24a) and (24a) of the upper fixing plate (24) by the rods (20b) and (20b) by stopping 1).

Further, the sliding cylinders (31), (31) for opening and closing the two sliding molds in the direction orthogonal to the rails of the lower part of the upper mold (15) are I-shaped beams (23a), (23b) and (23c), (23). 23d) are fixed horizontally inwardly so as to face each other at the central portions of the support members (32) (32) fixed between the support members (3).
2) The rod (31a) passing through 2) has a small tip (31a-
1) and an expansion part (31a-2), and the one-movable type also has engaging parts (33a) and (33a) that fit into this rod (31a) and whose ends project inwardly. When the upper die (15) is moved from the first station (1) to the second station (2) with the outward recess (33) provided in the rail direction, the rods (31a) and (31a) are slidable. Recess of (3
3), (33), and will move within it to some extent. Then, the engaging portions (33a) and (33a) of the recess (33) are hooked by the expansion portion (31a-2) of the rod (31a) that has entered the sliding recess (33), and The sliding type can be opened and closed. That is, the carriage (2
When the 1) stops at the predetermined position of the second station (2) and is positioned and fixed, the sliding cylinder (31),
The sliding cylinders (18) and (18) fixed to the (31) and the carrier truck (21) open the upper mold (15) and the lower sliding mold in four directions, and the extruding device (34) described later is used to produce the product. After pushing out, it will close again.

Further, the pushing device (34) is attached to the central portion of the upper fixing plate (24) of the second station (2), and the pushing rod (34b) of the cylinder (34a) penetrates the upper fixing plate (24). The lower part of the extrusion lot (34b) forms an expanded pressing part (34c), and the pressing part (3c)
The lower end of 4c) is formed with a horizontally downward recess (35) over the entire length in the rail direction, and inward projections (35a), (35a) are formed at the bottom of the recess (35). .
On the other hand, a pressure receiving part (36) for extruding the molded product from the upper mold (15) is projected at the upper part of the carrier vehicle (21),
An expanded engaging part (37a) is provided at the upper center of the pressure receiving part (36).
The T-shaped projection (37) is formed, and when the transport carriage (21) moves to the second station (2), the T-shaped projection (37) is extruded. The device moves into the recess (35) of the pushing rod (34b) of the device (34). When the carrier truck (21) is positioned and fixed at a predetermined position of the second station (2) and the four sliding dies under the upper die (15) are opened, the pushing rod (34b) of the pushing device (34) is lowered. , The pressing portion (34c) pushes down the pressure receiving portion (36) at the upper part of the carrier vehicle (21) to move the product to the upper die (1
5) The mold is released from the mold, and then the push rod (34b) pulls up the engaging part (37a) of the projection (37) of the pressure receiving part (36) with its projections (35a) and (35a). Pull up the part (36) and restore it.

Here, the whole movement will be described.

First of all, the upper mold (15) having the mounting fittings, sleeves, etc. set in the mold is moved to the first station (1) from the second station (3) on the right side of FIG. Once positioned and fixed in place, the lower mold opening and closing device (12) raises the lower mold (10) and clamps the upper mold (15) and lower mold (10), after which the molten metal is poured and injected. A device (11) is pressure-filled and a product is cast. After casting, the lower mold (10) is lowered by the mold opening / closing device (12) to open the mold, but the product is left in the upper mold (15). Next, the upper die (15) is moved to the position of the second station (3) by the transport carriage (14) and the sliding cylinder (29) and positioned and fixed at a predetermined position. The sliding mold cylinders (18), (31) ... open the moving mold under the upper mold (15) in four directions, and push the product into the upper mold (15) using the extrusion device (34).
From the mold, then clean the upper mold (15), apply mold release material,
Set the device metal fittings, core, etc. and wait. During this time, in the first station (1), work such as cleaning of the lower mold (10) and coating of a release material is completed, and another upper mold (15) waiting at the second station (2) on the left side in FIG. Is a carrier (2
1) When the transfer cylinder (27) moves to the first station (1), the next casting operation is performed. After that, these operations are sequentially repeated and the casting operation is continuously performed.

(Effects of the Invention) As is apparent from the above, according to the present invention, after the casting operation in the first station, the product is released in the second station, the inside of the mold is cleaned, the mounting metal fittings, the core, etc. are set. Since the work for the mold and the work for the lower mold such as cleaning the inside of the mold at the first station and applying the release material can be performed simultaneously in a wide working space, it is possible to shorten the working time and improve the working efficiency. You can Further, by providing the second station on both sides of the first station and reciprocally moving a plurality of upper molds between the first and second stations, the product is released from the other upper molds during the casting operation in the first station. Since the work can be performed, it is possible to shorten the work time and improve the work efficiency.Because the lower die relationship having a complicated mechanism is shared by the equipment, the equipment cost can be reduced rather than having a plurality of casting equipment. In addition, the device space can be reduced.

[Brief description of drawings]

1 is a sectional front view of a vertical molding machine according to the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a side view of FIG. 1, and FIG. 4 is A-A of FIG. FIG. In the figure, (1) is the first station, (2) and (3) are the second stations, (7) is the tie bar, (10) is the lower mold,
(11) is an injection device, (12) is a mold opening / closing device, (15) is an upper mold, (20) is a clamp device, and (34) is an extrusion device.

Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location B29C 45/04 7344-4F 45/26 7158-4F

Claims (1)

[Claims] 1. In a vertical molding machine for injecting a molding material into a cavity formed by an upper mold and a lower mold to carry out molding, a first mold having an injection device is provided on both sides of a first station. Two stations are provided, and moving devices that reciprocate alternately are provided between the second station and the first station on one side and between the second station and the first station on the other side, and each moving device has an upper die. And a clamp device for clamping the upper die moved to the first station on the lower die and a die opening / closing device for moving the lower die up and down toward the upper die. Each second station is provided with a clamp device that clamps the upper mold that has moved to the second station and an extrusion device that releases the product from the clamped upper mold. Vertical molding machine according to claim.