JPH0347726Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a flash removal device for die-cast products, and more specifically, the forward and backward movement of a product take-out device that is linked to the casting cycle of a horizontal die-casting machine, and the chuck of the take-out device. A horizontal casting method in which flash is removed from biscuits, runners, sumps, etc. of die-cast products that are taken out from the die-casting machine by gripping the product biscuits and transported in, in a series of operations linked to the casting cycle. This invention relates to a press-type deburring device.

<Conventional technology and its problems> This type of deburring device is parallel to the machine length of a horizontal die casting machine or on the side opposite to the machine length, that is, the movable mold is fixed in the same direction as the mold closing and mold opening operations of the die casting machine. The product is taken out from the die-casting machine in an upright position by moving forward and backward in conjunction with the casting cycle of the product taking-out device, which is installed parallel to the die-casting machine so as to perform a pressing action, and is installed horizontally across the die-casting machine so as to be able to move back and forth horizontally. The point at which the die-cast product transferred between the fixed and movable molds is set in the fixed mold by the lateral movement of the product take-out device in the direction of the fixed mold, which is carried out after the product has been transported (after the device has stopped at its retract limit). The movable mold is operated in a press operation to remove flash from the biscuits, runners, pools, etc. from around the product, which is performed in a series of operations linked to the casting cycle.

However, as a practical problem, the extrusion mechanism of the die-casting machine moves forward to follow the mold opening operation of the die-casting machine, and when the biscuit that has been extruded from the mold and is removed from the mold is grabbed by the chuck and taken out. Due to the timing discrepancy between the extrusion operation of the biscuit and the gripping operation of the chuck of the product take-out device that grips the biscuit, the product may not be grasped in the correct standing position and the product may be grasped in a position that is slightly tipped over, or the product may not be fixed after being transferred. When the product is moved laterally in the direction of the mold and set in the fixed mold, the setting position of the product tends to shift with respect to the fixed mold due to vibration of the chuck, and as a result, the press operation of the movable mold is performed without the product being accurately set in the fixed mold. As a result, there were problems such as it was not possible to perform highly accurate deburring work, and parts of the product were crushed, resulting in defective products.

<Problem to be solved by the invention> The invention was made in view of the conventional problems, and the technical problem to be solved is to reduce the deburring work of die-cast products to the casting cycle of the die-casting machine. In the deburring device, which performs a series of operations in conjunction with It is an object of the present invention to provide a horizontal press type deburring device having a correction function capable of correcting positioning under interlocking operation with a product take-out device.

<Means for achieving the technical object> The technical means taken by the present invention to achieve the above object is to insert and lock a fixing member provided integrally around the product around the fixed mold of the main body of the device. A positioning holder is provided so that the bullet can be freely retracted and retracted, and a presser that faces the holder and presses the fixed member toward the holder and clamped together with the holder is provided around the movable mold so that the bullet can be freely retracted and retracted. The positioning holder is elastically protruded at approximately the same height as the mold surface of the fixed mold, and the tapered part of the fixing member, which is formed into a tapered shape toward the protruding end surface through a tapered part, is loosely formed on the protruding end surface. A position correction guide hole is provided with an opening diameter of an appropriate depth so that the tapered part is inserted in a fit and is locked against the opening edge, and the presser is made to protrude elastically higher than the edge surface of the movable mold opening. It is.

<Function> According to the technical means of the present invention described above, the product biscuit is taken out from the die-casting machine by moving the product take-out device back and forth and gripping the product biscuit by the chuck of the take-out device. When the die-cast product carried in between is transferred to the fixed mold side by the lateral movement of the product take-out device, the tapered part of the integrally molded fixing member around the product is pressed against the elastic protruding positioning holder around the fixed mold. The tapered portion is loosely inserted into the position correction guide hole in the opening range of the guide hole, and the tapered portion is roughly abutted (fitted and inserted) into the opening edge of the guide hole. Thereafter, when the fixing member is pressed toward the holder by the elastically protruding presser around the movable die that approaches due to the press operation of the movable die, the tapered portion of the fixing member will move into the position correction guide hole of the holder. The position of the fixing member is adjusted so as to fit the opening edge, and the fixing member is held between the holder and the holder. At this time, the grasping state of the product biscuit is released by the chuck of the product take-out device.
The product is supported and held by the peripheral fixing member held by the holder and the presser, and under the pressure of the presser, the fixing member is fitted into the position correction guide hole and locked to the opening edge of the guide hole. The product is positioned and corrected with respect to the fixed mold by fitting and fitting the tapered portion of the mold. As the press operation of the movable mold continues, the holder is retracted, and the product is set in the fixed mold.At the same time, the presser is retracted and the movable mold is matched to the fixed mold, so that the casting flash around the product is removed. be cut off.

<Example> An example of the implementation of the present invention will be described below based on the drawings.The main body A of the device is of a horizontal press type, and includes a fixed mold _A2 provided on a fixed platen _A1 and a movable platen movable by a cylinder C. It consists of a movable mold b ₂ provided on the fixed mold a ₂ , and a plurality of positioning holders 1 (three in the drawing) are protruded around the fixed mold a ₂ so that bullets can be freely taken out and retracted. the holder 1
A presser 2 that presses and clamps the die-cast product B together with the
is protrudingly provided around the movable platen B ₁ so that the bullets can freely appear and retract.

The holder 1 is for holding a die-cast product B by inserting and locking a fixing member x integrally formed thereinto, and as shown in FIG _.
One protruding piece is provided on the upper side of the periphery, and two protruding pieces are provided on the lower side.
By the way, the fixing member X, which is integrally molded around the die-cast product B, protrudes at an appropriate height toward the holder 1 around the fixed mold _A2 , and has a tapered part _X1 on the outer periphery of the approximately halfway point. The tapered part X ₂ is inserted loosely into the position correction guide hole 7 of the holder 1, which will be described later, and the tapered part X ₁ is formed into a tapered part of the opening edge of the guide hole 7. It is designed to abut against (fit and insert) 7a.

The number and mounting locations of the holders 1 are not limited to the above as long as they are around the fixed mold _a2 .

The holder 1 consists of a cylinder 3 which is protruded from a fixed platen a ₁ by means of a mounting piece 1a, and a pin holder 4 which accommodates a bullet in the cylinder 3 so that it can freely move in and out and protrudes from its tip opening. .

The cylinder 3 is circular and has an appropriate length, and its tip is located at the same position as the proximal end a ₄ of the cutting blade a ₃ in the fixed type a ₂ .

A pin holder 4 is attached to the middle part of the cylinder by a spring m.
A receiving plate 5 which is pressed on the side is provided, and a stepped portion 6 for hooking the pin holder 4 is provided on the inner periphery of the tip.

The pin holder 4 is formed to a length such that the elastic protrusion from the tip of the cylinder 3 is located at approximately the same height as the mold surface of the fixed mold a ₂ and protrudes toward the movable mold b ₂ side, and the protruding end surface (tip part) The position correction guide hole 7 is formed at an appropriate depth with an opening diameter large enough to allow _the tapered part X ₂ of the fixing member When the hole is opened, a flange 8 is provided around the outer periphery of the proximal end portion to engage with the stepped portion 6, and a spring n is elastically loaded between the base end portion and the receiving plate 5 to move the movable mold b ₂ side. Make oppression stand out.

The position correction guide hole 7 has a tapered portion 7a at its opening edge, and the tapered portion _x1 of the fixing member It is adapted to be corrected and held in a position that is accurately set relative to the fixed mold _a2 .

The presser 2 presses the fixing member x of the die-cast product B inserted into the holder 1 toward the holder 1, thereby crimping the fixing member x onto the holder 1.
This ensures that the die-cast product B is held securely, and similarly to the holder 1, it includes a cylinder 9 protruding from the movable platen _B1 and a slider mounted in the cylinder 9 so as to be freely retractable. A presser pin 10 that protrudes from the
Consisting of

The presser pin 10 is formed to a length such that its elastic protrusion from the tip of the cylinder body 9 protrudes toward the fixed mold a ₂ at a predetermined height from the mold opening edge surface of the movable mold b ₂ , that is, from the cutting edge b ₃ . Then, a spring f loaded in the cylinder body 9 causes the cylinder body 9 to protrude under pressure. The elasticity of the spring f is set to be weaker than the spring m of the receiving plate 5 and stronger than the spring n of the pin holder 4.

In addition, a product presser confirmation sensor 11 such as a proximity switch is built into the presser pin 10 so as to face the tip thereof, and the presser pin 10 is attached to the fixing member x of the product B which is inserted and locked in the holder 1. At the time of contact, that is, when the fixing member It's summery.

According to the deburring device of this embodiment configured as described above, both the fixed and movable molds a ₂ and b ₂ are removed by the product take-out device that moves forward and backward in conjunction with the casting cycle of the die-casting machine. It was transported and brought in (Fig. 1).
When the die-cast product B is transferred to the fixed mold a ₂ side by the lateral movement of the product take _- out device, the tapered part of the fixed member
X ₂ is placed in the position correction guide hole 7 of the pin holder 4,
The tapered portion X1 is loosely inserted into the opening range of the guide hole 7, and the tapered portion _X1 is roughly fitted and locked into the tapered portion 7a of the guide hole 7 (FIG. 2).

Thereafter, when the presser pin 10 comes into contact with the fixing member x due to the pressing operation of the movable die b ₂ and presses the fixing member x toward the pin holder 4 side and clamps it (FIG. 3), the presser pin 10 The chuck S is opened in response to a signal from the product holding confirmation sensor 11 built into the product holding member 10, the gripping state of the product B is released, and the fixing member x
Under the pressure of the presser pin 10, the pin holder 4 is fitted into the position correction guide hole 7, and the pin holder 4 is fitted into the position correcting guide hole 7 by correcting the tapered portion x1 to the tapered portion _7a of the guide hole 7. held between. Due to this adaptation of _the tapered part _{7a ,}
Positioning is performed so that the position is accurately set relative to the object.

As the pressing operation of the movable mold b ₂ continues, the pin holder 4 is recessed into the cylinder 3, and
Product B is set in the fixed type _a2 , and at the same time the presser pin 10 is also inserted into the cylinder body 9, and the movable type _b2 is changed to the fixed type.
By mold matching a ₂ , the casting flash around product B is cut off (states shown in Figures 4 and 5).

<Effects of the Invention> Since the deburring device of the present invention is constructed as described above, it exhibits the following effects.

By moving the product take-out device forward and backward in conjunction with the casting cycle of the die-casting machine and grasping it by the chuck of the take-out device, the die-cast product that has been taken out of the die-cast machine and transferred between the fixed and movable molds is placed next to the product take-out device. When the product is transferred to the fixed mold side by movement, before it is set in the fixed mold, it is inserted into the position correction guide hole of the positioning holder that protrudes elastically at approximately the same height as the mold surface around the fixed mold. The tapered part of the fixing member is loosely inserted into the opening range of the guide hole, and is received by a positioning holder around the fixed mold with the tapered part roughly abutting and engaging with the opening edge of the guide hole. When the fixed member is pressed toward the holder by a presser that protrudes elastically higher than the mold opening edge surface around the movable mold, which approaches the movable mold by the pressing operation, the fixed member has a tapered portion that acts as a position correction guide for the holder. Since the product is corrected to the opening edge of the hole and held by the holder, the setting position of the product relative to the fixed mold can be corrected by interlocking with the product take-out device before it is set in the fixed mold. It is possible to precisely set the product in a fixed mold under motion.

Therefore, even if there is a slight positional deviation in the upright posture of the product gripped and taken out by the chuck of the product takeout device, the position can be corrected by being guided and inserted by the tapered part of the fixing member into the position correction guide hole of the positioning holder. By correcting and fitting the tapered part, the product can be set in the fixed mold while correcting its positioning with respect to the fixed mold, and the flash can be cut off from around the product through highly accurate flash removal work.

Thus, we were able to achieve our intended purpose.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of the deburring device of the present invention, Figs. 2 to 5 are operational views of the same, and Fig. 6 is the
It is a sectional view taken along the - line in the figure. In the figure, A...device main body, _a2 ...fixed type, _b2 ...
...Movable type, 1...Positioning holder, 2...Pressing tool, 7...Position correction guide hole, B...Die-cast product, _X1 ...Tapered part, _X2 ...Tapered part.

Claims (1)

[Scope of utility model registration request] Moving the product take-out device back and forth in conjunction with the casting cycle of the horizontal die-casting machine, and removing flash from the die-cast product that has been taken out from the die-cast machine and transferred by being gripped by the chuck of the take-out device, in conjunction with the casting cycle. In a horizontal press type deburring device that performs a series of operations, a positioning holder that inserts and locks a fixing member integrally provided around the product is installed around the fixed die of the device body and can be moved in and out. A presser is provided around the movable mold so as to be able to protrude and retract from the movable mold. The tapered part of the fixing member is elastically protruded at substantially the same height as the surface, and the tapered part of the fixing member is loosely inserted into the protruding end face via a tapered part toward the protruding end face, and the tapered part is formed into a tapered shape. A mold deburring device characterized in that a position correction guide hole is provided with an opening diameter of an appropriate depth so that the part is abutted against the opening edge of the movable mold, and the holding tool is elastically projected higher than the opening edge surface of the movable mold. Device.