JPS5932446Y2 - Trimming equipment for die casting products - Google Patents

Description

[Detailed description of the invention] The present invention relates to a trimming device for die-cast products, and in particular, it operates in conjunction with a die-casting machine to improve the efficiency of the process from the bottom mold to trimming, and to reduce the installation area. This is a trimming device.

Conventionally, trimming machines and die-casting machines are considered to be separate and independent machines.

It may be seen in some factories that die-casting machines are operated with a trimming function, but this is a device that is considered according to the current situation at each factory.
It is not membranous.

For this reason, specialized manufacturers manufacture both machines separately.

If you try to automate the process from molding to trimming without interlocking the two machines, you will need to interpose some kind of conveyance system between the two machines.

Conventionally, there is no general solution to this problem.

Conventionally, for example, die-casting machines have mainly been of the type using a lateral movement type, and trimming machines have mainly been of the type using a rigid movement type.

For this reason, it is common practice to take out a product formed by a die-casting machine by some other means, invert the product 900 degrees, and then take it to a trimming machine.

Furthermore, in order to take out the trimmings and products after trimming, the table on which the trimmings and products are temporarily placed is turned over and the trimmings and products are taken out of the trimming machine.

These conventional series of operations constitute a very complicated device system, but the precision performance is poor.

The above-mentioned example is just one example. For example, there is an example in which a take-out device is installed that lifts vertically upward from the product take-out part of a die-casting machine, retreats to the trimming position of a trimming device, and then lowers it. Adding vertical movement to the die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting die-casting machine. Various inconveniences arise, and even if the take-out device is simply integrated with the trimming device in appearance, it will not actually become integrated and convenient, and the movement system that only performs horizontal movement will Even if it is configured, the entire device becomes long and the investment efficiency is poor in terms of installation area.

It can be assumed that each factory has devised various methods independently, and it is easy to think of various methods, but until now there has been no definitive method.

This invention was developed in consideration of various circumstances, and the reciprocating movement of the die plate (
A die-casting machine in which a plurality of guide shafts arranged above and below pass through both sides of the die plate to guide the reciprocating direction (hereinafter referred to as the horizontal direction). Male and female opposing trimming dies are positioned relative to the die-casting machine so as to reciprocate relatively parallel to the direction of the reciprocating movement, and between the opposing trimming dies there is a In a cantilever-type trimming device that does not have a guiding axial force for guiding these, the trimming device has an integral part that is perpendicular to the reciprocating direction of the trimming mold and in a straight line in the horizontal direction. A guide body is provided for guiding a first reciprocating body that reciprocates, and a second reciprocating body that moves horizontally and perpendicular to the direction of the reciprocating motion of the first reciprocating body is provided. An arm is integrally fixed to all of these reciprocating bodies, and this arm is suspended below a guide body that guides the first reciprocating body, and is directed forward, that is, toward the die-casting machine. On the other hand, the first reciprocating body has a part that extends long in the forward direction, and a gripping device is attached to the tip of this part, and when the part and the gripping device move forward, they hold the above-mentioned upper and lower parts of the die-casting machine. The position of its horizontal movement is such that it can pass between the guide shafts, and the hydraulic cylinder device for driving the first reciprocating body is oriented horizontally and , is installed so that the piston rond side (the one that moves) is at the front, and is connected to that piston rond side for horizontal movement.
To provide a trimming device for die-cast products, characterized in that the first reciprocating body is connected to the rear end side of a long transmission body extending in the horizontal movement direction, and the operating system is simple. The aim is to shorten the time cycle and reduce the installation area at the same time.

The present invention will be explained in detail below through an embodiment shown in the drawings.

FIG. 1 shows a trimming device according to the present invention, 1a, 1
b is a trimming mold attached to the main body stand 3 supported by the main body leg 2; 1a is the fixed type (or a plate for attaching the fixed mold), and 1b is the movable type. .

Reference numeral 4 denotes a first reciprocating body, which is caused to reciprocate by means to be described later, and is now assumed to be moving in a direction perpendicular to the plane of the paper in FIG.

5 is a second reciprocating body, which is coupled to the first reciprocating body 4;
For example, a pneumatic cylinder device.

This second reciprocating body moves in a direction different from the direction of movement of the first reciprocating body 4, for example in a direction perpendicular to it.

Reference numeral 6 denotes a gripping device that is connected to the second reciprocating body 5 by suitable means to be described later and grips the die-cast product, and has a position for receiving and gripping the die-cast product, and a facing type 1a of the trimming machine.

It will reciprocate between the positions 1b and 1b.

The mechanical elements 1 to 6 described above integrally constitute the trimming device body or are coupled thereto.

As shown in FIGS. 1 and 2, the first reciprocating body 4 is made of exterior pipes 7, two on the left and right, and two on the front and back, and is made of shaped steel, and the pipes 7 are fixed. a main body frame 8, and a transmission member 9 connected to the upper part of the main body frame 8 for transmitting the driving force of a drive device to be described later.
(A shaped steel material with a square cross section is used.)

As shown in detail in FIG. 3, the exterior pipe 7 is fixed to the main body frame 8 by a thick plate 10 with a round hole punched therein.

Further, the pipe 7 reciprocates while being guided by a core rod 11 that is slidably covered by two parallel core rods 11.

The core rod 11 is fixed to an underframe 15 placed horizontally on a column 14.

Therefore, the first reciprocating body moves in a straight line.

The tip of the transmission member 9 is connected to the connecting fitting 1 as shown in FIG.
2 to the piston rod end of the driving cylinder device 13.

This cylinder device 13 has a receiver supported by a fixing member 16.16 shown in FIG. 1 and a fixing member 17 shown at the left end position in FIG. It is supported and fixed on a stand 18.

In this way, by interposing the transmission member 9 between the cylinder device 13 and the reciprocating body frame 8, the cylinder device can be installed closer to the front (to the right in Fig. 2), which allows the trimming device to This is convenient because the overall size can be shortened.

As shown in FIG. 1, the second reciprocating body 5 is a cylinder having a built-in piston, and this cylinder is suspended from a guide rod 20 via left and right plates 19.

The left and right ends of this guide rod (left and right when viewed in the direction of FIG. 1) and the left end of the piston rod 21 are fixed to a member 22 fixed to the lower end surface of the main body frame 8 described above.

By the operation of this cylinder device, the cylinder 5, which is the second reciprocating body, is guided by the iron 20 and moves left and right.

As shown in FIG. 2, the gripping device 6 is attached to the frame 22 via an arm 23 extending forward from the frame 22 (as shown by the dotted line on the right side in the figure).

This gripping device is often used in this type of field, so the mechanical details will be omitted, but it uses two claws 24 that move in parallel in opposite directions using a link mechanism to accurately position the device on a predetermined center line. It is possible to grip the die-cast product while holding it.

Separation and sorting means is provided below the movable space of the opposed trimming molds 1a and 1b.

As shown in FIG. 1, a rolling element (metal plate, rubber plate, grid plate, etc.) is connected to the tip of the piston rod of a cylinder 25 whose base end is rotatably supported via a small lever 26.
27 is the main member of the sorting means (one end of the small ram 26 is supported by a rond core).

The conical rolling element 27 is connected to one of the two conveyance paths 28 and 29 by not rolling or rotating.

One is a conveyance path for taking out the paris, and the other is a conveyance path for taking out products.

An example of the use of the above-mentioned embodiment device according to the present invention is as follows.

Since the present invention is applied to a case where it is linked to a die-casting machine, this example will be taken up and explained below.

Now, what is shown by the number 30 in FIG. 2 is the goo plate of the die-casting machine.

When the cylinder 13 is actuated, the moving frame 8 (hereinafter referred to as the first reciprocating body 4), which is connected to the extending rod through the transmission member 9, slides against the pipe 7 and moves forward. (move right).

Stop the first reciprocating body 4 at a fixed forward position using a limit switch or stopper (position shown by the dotted line in Figure 2)
.

At this time, the die-casting machine has already finished molding one product or a set of products, and the product is halfway ejected from the mold 30.

The second reciprocating body 5 attached to the stopped first reciprocating body 4 is activated, and the gripping device 6 moves in a direction perpendicular to the paper plane of FIG.

By this operation, the cylindrical body that is the sprue of the product enters between the opposing claws 240 of the gripping device 60.

The gripping device operates to grip the product and then retreats (at this time, the product is extracted from the mold 30).

The first reciprocating body 4 retreats to the home position before starting and stops.

At this time, the movable mold 1b of the trimming device is of course retracted.

The second reciprocating body operates again, and the product gripped by the gripping device 6 moves toward the mold 1a (assumed to be a male mold).

Since the deviation width is determined by a limit switch or a stopper, etc., when the product approaches the mold 1a and stops, it is in contact with the male mold.

The position of the male type attachment is adjusted so that this can be done (the position of the male type attachment can be adjusted with the screw 29 shown in FIG. 1).

In this state, the trimming movable mold 1b operates to perform trimming.

The trimming press cuts off the large and small pieces of the product from the product body, falls off, and falls naturally downwards (if the trimming die is not the horizontal movement type shown in the figure but a car-moving type, the size of the product is cannot be naturally excluded from the movable space of the mold).

When this falling occurs, the rolling elements 2 shown in FIG.
7 is at the solid line position.

In this case, the rolling elements 27 are connected to the sheet 29 constituting the paper removal conveyance path.

The drop is performed while the movable mold 1b is retreating.

At or just before the movable mold returns to the retracted position, the product is pushed by a pin protruding from the movable mold and falls out of the movable mold 1b, and the product also falls freely.

At this time, the rolling element 27 has rotated to the dotted line position, so
The product that has fallen onto the rolling element at that position is sent out to the outside by the product take-out conveyance path 28.

Subsequently, the second reciprocating body retreats and returns to its original initial position, and the series of operations described above are repeated.

The intermediate device for receiving and passing the die-cast products between the two machines has conventionally been manufactured independently from both machines and installed while being adjusted at the factory, ignoring the problem of alignment accuracy. , traditional intermediate equipment requires a rotating arm,
Since the rotary arm required the ability to rotate on its own axis and rotate around its base end, a large amount of space was required in the factory to install the entire device system.

It is not preferable to provide a product removal device on the die-casting machine.

A die-casting machine is accompanied by various devices such as a hot water injection device, a mold release agent spraying device, and a core device, and it is difficult to add a take-out device in addition to these devices.

Trimming machines, on the other hand, are much simpler than die-casting machines, and it is not difficult to attach accessories to them.

If the extraction device is integrally coupled to the trimming device, positioning accuracy is improved and adjustment is facilitated.

As mentioned above, in addition to adjusting the position of the trimming mold using the screw 29, the position of the trimming device as a whole is adjusted using another screw 31 (see Figure 1) relative to the die-casting machine. By doing this, it becomes possible to easily adjust the mutual positional relationship of the take-out device (first reciprocating body), the rimming device, and the die-casting machine.

As mentioned above, combining a die-casting machine and a trimming machine into one unit may result in overloaded equipment, or even worse.
It is often inconvenient.

On the other hand, even if the trimming machine is attached with an accessory device of the present device, the configuration of the accessory device is extremely simple, so the trimming machine will never become an overloaded equipment.

The present device is extremely convenient even when not linked to a die-casting machine, and becomes even more convenient when linked to a die-casting machine.

A reciprocating type take-out device is sometimes installed next to the die-casting machine, and since this take-out device is naturally provided with a second reciprocating mechanism, the present invention, which rotates between the opposed trimming dies, The second reciprocating body according to the present invention does not require a new addition to the conventional device, and is extremely economical.

The present invention was developed through multifaceted research in consideration of various circumstances.

There are usually four guide shafts for the die plate of a die-casting machine, and they must pass through the guide plate, that is, in a so-called double-end type, so interference with these four shafts can be avoided. However, if you tried to take out the product, you would have to use a robot arm with complex refraction or pull it upwards.

Now, if we consider simply pulling it out in a horizontal motion towards the trimming machine, we have the paradoxical result that this pull-out device has to be placed in front of the trimming device.

However, in the present invention, the take-out device is placed behind the trimming device.

In this case, even if the somewhat long take-out arm required for take-out is convenient in that it can pass between the four axes of the die-casting machine, it also needs to pass between the opposed trimming dies. be.

In this case, since the power of the trimming device is relatively low, the mold may be cantilevered.

This is the starting point for the solution provided by the present invention.

However, if an arm that is too long is used, the overall length of the device system may become too long; however, according to the present invention, by providing one transmission body 9, the take-out device can be placed at the rear of the trimming device. Instead of having to line up the die-casting machine, trimming device, and take-out device in a straight line in that order, the take-out device could be moved forward and stacked on top of the trimming device. In this sense, integration, which is the main focus of the present invention, has been achieved.

In this way, in addition to shortening the time cycle and simplifying the operating system, it was also possible to make the device system more compact, reducing not only the area but also the height, thereby reducing the space required for installation.

[Brief explanation of drawings]

FIG. 1 is a front view partially shown in section of one embodiment of the present invention, FIG. 2 is a side view partially shown in section, and FIG.
The figure is an enlarged partial cross-sectional view of a part of the first reciprocating body. 1a...Fixed type for trimming, 1b...
・Movable type for trimming, 2... Body legs, 3...
... Main body stand, 4... First reciprocating body, 5.
...Second reciprocating body, 6...Gripping device,
7...Pipe, 8...Body frame, 9...
...Transmission member, 10...Plate, 11...
...Core body frame, 12...Connection fittings, 13...
... Drive cylinder device, 14... Pillar, 15.
...Underframe, 16.17...Fixing member, 1
8...The receiver is a stand, 19...The board, 20...
...Guide rod, 21...Piston rod, 22...Member, 23...Arm, 24...
...Claw, 25...Cylinder, 26...
...Small rod, 27...Rolling element, 28, 29.
...Conveyance path, 30...Gui plate.

Claims (1)

[Scope of utility model registration request] Reciprocating movement of the die plate (based on the direction of this reciprocating movement,
In the direction of the reciprocating motion of the die-casting machine, a plurality of guide shafts disposed above and below to guide the die plate (hereinafter, this will be defined as the horizontal direction) pass through both sides of the die plate. The opposing trimming dies are positioned relative to the die casting machine so as to reciprocate relatively in parallel, and a guide shaft exists between the opposing trimming dies for guiding them. In a cantilever-type trimming device that does not have a trimming device, a first reciprocating body is integrally guided to the trimming device, and the first reciprocating body reciprocates in a straight line in a horizontal direction and perpendicular to the reciprocating direction of the trimming mold. A second reciprocating body is attached to the first reciprocating body which moves horizontally and perpendicular to the direction of the reciprocating motion of the first reciprocating body. is integrally fixed with an arm, and this arm is suspended below a guide body that guides the first reciprocating body, and the first reciprocating body is directed forward, that is, toward the die-casting machine. A gripping device is attached to the tip of this portion, so that this portion and the gripping device can pass between the upper and lower guide shafts of the die casting machine when moving forward. The position of the horizontal movement is determined, and the hydraulic cylinder device for driving the first reciprocating body is horizontally oriented.
Also, the rear end side of a long transmission body that is installed so that the piston rond side (the one that moves) is in the front, and that is connected to the piston rond side to move horizontally and extends in the horizontal movement direction. A trimming device for die-cast products, characterized in that the first reciprocating body is coupled to the trimming device.