JPS62156064A - Product ejection device of trimming device for die casting - Google Patents

Abstract

PURPOSE:To prevent the damage of a product and to improve productivity by providing a transfer means which can be adjusted in vertical movement, disposing a product receiving tray to the transfer means and further projecting the product receiving tray to the lower side of a lower die. CONSTITUTION:A movable platen 3 which is vertically moved by a cylinder 2 is provided to the center of a frame 1 and an upper die 4 is mounted on the bottom surface thereof. A space part 7 is formed between a lower die 5 and the top surface of a lower die mounting plate 6 and the transfer means 12 is disposed thereto. The plate 6 receives and transfers a casting (a) at a prescribed position A by the sliding movement of a guide member 9. The product trimmed by the upper die 4 is then dropped onto the product receiving tray 13 positioned below the lower die 5. The product is not directly dropped onto the lower mold mounting plate and is received by the receiving tray 13 and therefore the damage of the product is prevented. Since the vertical adjustment of the tray 13 is possible, the productivity is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a product unloading device for automatically transporting a trimmed product out of the trimming apparatus in a die casting trimming apparatus.

(Prior Art) As such a trimming device for die casting, for example, one having a structure described in Japanese Patent Application Laid-Open No. 59-144533 has been known.

This device has an upper mold that can move up and down at the top of the frame, and a lower mold and a mounting plate for the lower mold that are arranged at the bottom so that they can move back and forth in the horizontal direction, and the lower mold protrudes outside the machine. After setting the cast product, it is returned to the bottom of the upper mold, the upper mold is moved down to perform trimming, and the trimmed product is discharged outside the machine through a chute. .

(Problems to be Solved by the Invention) However, with such a device, there is a risk that the trimmed product may fall from the lower mold onto the lower mold mounting plate below and collide with it, resulting in damage such as dents. At the same time, since the product on the lower mold mounting plate is scraped toward the chute side by a brush attached to the mouth/nod end of the cylinder, it is difficult to insert the brush in the case of a lower mold with a low height. In addition, since the product is discharged downward through a chute, only small-volume storage packets can be used, resulting in a small amount of product being sent to subsequent processes, which leads to problems such as poor productivity. Ta.

The present invention provides a product unloading device for a die-casting trimming device that solves these problems.

(Means for Solving the Problems) As shown in the drawings corresponding to the embodiments, the product unloading device in the trimming device for die casting of the present invention includes upper molds (4) at the upper and lower portions of a frame (1). In an apparatus for attaching a lower die and trimming a cast product by lowering the upper die (4) with a lower die (5) integrally provided on the upper die, a conveyor is attached to the front part of the frame (1). The starting end is the lower die mounting board (6)
A transfer means (12) is disposed close to the front surface of the transfer means (12) and the unloading end thereof is at a higher position than the conveyance start end, and the rear end of the product receiving tray (13) is fixed to the transfer means (12). By operating the transfer means (12), the product receiving tray (13) can be projected below the lower mold (5), and the transfer means (
12) is configured to be vertically adjustable.

(Function) The cast product trimmed by the upper and lower molds (4) and (5) is received on the product tray (13) facing below the lower mold, and is moved to the product tray (13) by the operation of the conveying means (12). ) moves forward and drops the product from the end of the conveyance into a storage packet, etc. below, and stores it.

Next, by operating the conveyance means (12) in the opposite direction, the empty product receiving tray (13) is inserted into a position near the bottom of the lower mold (5), and is placed in the position of receiving the next product. .

In addition, when the height of the lower mold (5) changes due to mold change etc., the transfer means (12) is moved up and down accordingly, and the lower mold (5) is moved up and down accordingly.
5) to change the height position of the product receiving tray (13).

(Example) To explain an example of the present invention with reference to the drawings, (1) is a frame formed in the shape of a front gate, and a movable plate (3) that is moved up and down by a trimming cylinder (2) in the center of the upper part of the frame.
) is placed on the lower surface of the movable platen (3).
4) is removably attached.

(5) is a lower mold disposed at the bottom of the frame (1) facing the upper mold (4), and its both side legs are attached to the lower mold mounting board (
6), and a space (7) is provided between the lower surface of the lower mold (5) and the upper surface of the lower mold mounting board (6).

Further, the lower die mounting plate (6) is integrally fixed on a guide member (9) that slides back and forth on a bearing (8) fixed to the frame (1), so that it can move back and forth.

α0 is a horizontal support stand integrally installed on the front lower part of the frame (1), and the vertical adjustment mechanism (11) (11) consisting of a lever structure such as bolts and nuts or a cylinder etc. is placed at appropriate intervals in the front and rear. A transfer means (12) is attached to the upper end of these vertical adjustment mechanisms (11) (11).

The transfer means (12) is rotatably supported by a guide frame (12a) whose front part is horizontal and whose rear part is bent upward in a U-shape, and the front and rear ends of this guide frame (12a). A chain coil consisting of wheels (12b) (12c), a roller chain (12d) that is endlessly hung between these wheels along the shape of a guide frame (12a), and a drive motor (12e). The front wheel (12b) is connected to the lower die mounting board (6).
) in a position close to the front end surface of the

(13) is a product receiving tray whose rear end lower surface is fixed to a chain (12d') running above the transfer device (12).

(14) is a lower mold cleaning cylinder disposed above the transfer device (12), and an air blow nozzle (1) is installed at the tip of the cylinder.
5) is attached, and the upper surface of the lower mold (5) is cleaned by air jetted from the nozzle.

(16) is a product pushing cylinder arranged at the rear of the upper part of the frame (1), and the pushing plate (17) is attached to the lower end of the rond.
) is installed.

(18) is a product storage packet installed below the discharge end of the transfer device (12), and (19) is a storage box installed behind the frame (1) for storing return materials such as molded parts. It is.

To describe the operation of the embodiment configured in this way, the lower mold (5
) is attached to the lower mold mounting board (6), which is guided out from the frame (1) to a predetermined position A in front by sliding the guide member (9) forward, while the lower mold mounting board (6) is mounted with a die-casting machine. The cast product (a) is taken out from the mold by a take-out machine (not shown), and the cast product (a) is transferred to the lower mold (5) at the take-out position. The cast product (a) placed on the lower mold (5) is pushed into the lower mold (5) by the pushing play (17) by the operation of the product pushing cylinder (16),
The pushing amount is confirmed by checking the stroke of the cylinder (16).

Thereafter, the lower mold mounting plate (6) is returned to position B below the upper mold (4) by the advance of the guide member (9), and the lower mold (5) fitted with the cast product (al) is moved to the upper mold ( 4), the trimming cylinder (2) is activated and the upper mold (4) is moved downward to perform trimming, and the trimmed product (b) is placed under the lower mold (5) in advance. The product falls onto and is received by a product tray (13) waiting nearby, while the sprue and the like remain on the lower mold.

When the trimming operation is finished, the drive motor (12e) of the transfer device (12) is activated to make the roller chain (12d) move forward.
The product receiver JI [l (13) installed in
is discharged into the storage packet (18).

On the other hand, any overflow, debris, etc. of the cast product remaining on the lower mold (5) can be removed using the air blow nozzle (15) provided at the tip of the cleaning cylinder (14) with its rond protruding toward the lower mold side.
The air is discharged into the storage box (19) by blowing out the air.

Thereafter, the product tray (13) is moved forward by the transfer device (12), and waits for the next product tray while being inserted under the lower mold (5).

In such trimming work, depending on the shape of the product and the layout of the die-casting machine and take-out machine, the product part (bl may be above or below the sprue part (C1), as shown in Figure 3. The height of the lower mold (5) also becomes higher or lower, and the position of the product receiving tray (13) for receiving the product needs to be adjusted up or down accordingly.

This vertical adjustment is performed by an adjustment mechanism (11
) to move the guide frame (12a) of the transfer means (12) up and down. That is, when the height of the lower mold (5) is high, the product tray (13) is placed at the H position in Fig. 2.
During this time, adjust the product tray (13) to a free position so that the product tray (13) comes to the position shown in Figure 2 if the height of the lower mold (5) is low. It is something.

In addition, the product discharge height from the product tray (13) is set higher than the product tray to allow the use of deep packets, improving production efficiency, and ensuring that the product is not placed on the tray (13). To save energy by discharging the sprue (biscuit) that falls together from a high position and using a device such as a chute plate (not shown) to use the sprue as a return material and returning it to the furnace while it is still hot. I can do it.

In addition, if it is desired to prevent the product from being damaged when it is stored in the packet (18), an intermediate conveyor or the like may be disposed close to the lower side of the discharge end of the transfer means (12).

Further, the transfer device (12) may be driven by an air motor, a cylinder, etc. in addition to the electric motor.

(Effects of the Invention) As described above, according to the product unloading device in the trimming device for die casting of the present invention, the upper mold is disposed at the upper and lower parts of the frame, and the lower mold is integrally provided on the lower mold mounting plate. In a device that trims a cast product by lowering the upper mold, the transport start end is close to the front wheel surface of the lower mold mounting plate, and the transport end is higher than the transport start end. A transfer means is disposed in such a manner that the product tray is positioned at the same position, and the rear end of the product tray is fixed to the transfer means so that the product tray can be projected below the lower mold by actuation of the transfer means. Since the product falling from the lower mold can be caught in the product tray near the lower surface of the lower mold without falling directly onto the lower mold mounting board, there is no risk of damaging the product. Further, the product tray can be smoothly led out of the machine by the transfer means, and the product can be dropped into a bucket or the like from the discharge end of the transfer means and stored therein.

Further, since the height of the discharge end of the transfer means is increased, it is possible to use a deep bucket, and a large amount of products can be stored at one time, thereby saving the labor of incidental equipment.

Furthermore, since the height position of the transfer means can be adjusted up and down, the height of the product receiving tray can be adjusted freely according to the height of the lower mold.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a simplified side view thereof, FIG. 2 is a vertical side view for explaining the height adjustment of the product receiving tray with respect to the lower mold, and FIGS. 3(a) and 3(a). (b) is a simplified side view showing lower molds of different heights. (1)...Frame, (4)...Upper mold, (51...
・Lower die, (6)...Lower die mounting board, αω...Support stand,
(11) Vertical adjustment mechanism, (12) Transfer means, (13) Product tray, (18) Product storage bucket.

Claims (1)

[Claims] In a device that trims a cast product by lowering the upper mold by disposing an upper mold at the upper and lower parts of the frame and a lower mold integrally provided on the lower mold mounting plate, the front part of the frame has a A transfer means is provided such that a transfer start end is close to the front end surface of the lower mold mounting board and a carry-out end is at a higher position than the transfer start end, and the rear end of the product receiving plate is fixed to the transfer means. A product carrying device for a trimming device for die casting, characterized in that the product receiving tray can be projected below the lower die by the operation of a transfer means, and the transfer means can be adjusted in vertical movement.