KR101688771B1 - Driving method of Diecasting machine with spray apparatus of release agent - Google Patents

Abstract

The present invention relates to a method of operating a die casting apparatus having a device of spraying a releasing agent capable of spraying a releasing agent to easily discharge a casting after a casting is discharged by including a spraying device spraying a releasing agent in the die casting apparatus. The die casting apparatus comprises: a worktable; a movable plate and a fixated plate formed on an upper surface of the worktable; and a movable mold and a fixated mold mounted on the movable plate and the fixated plate such that molten liquid stored in a molten liquid tank is injected into a space formed by coupling the movable mold and the fixated mold by an injection cylinder to form a casting. The method of operating a die casting apparatus having a device of spraying a releasing agent comprises: a first step of coupling a movable mold of the movable plate to a fixated mold of a fixated plate; a second step of injecting molten liquid into an inner space of the fixated mold and the movable mold by the injection cylinder; a third step of returning the movable mold to the original position with the movable plate when the molten liquid is injected into the movable mold and the fixated mold and hardened; a fourth step of discharging a casting from the fixated mold; and a fifth step of injecting a releasing agent to a front surface of the movable mold by detecting discharge of the casting using a sensor. The processes from the first to fifth steps are repeated after the fifth step; thereby the method of operating a die casting apparatus having a device of spraying a releasing agent is able to easily discharge a casting, increase productivity, and reduce a rate of defect of a product.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of driving a die casting apparatus having a mold-

A movable mold and a fixed mold are respectively mounted on the movable plate and the fixed plate, and a solution solution stored in the molten liquid tank by an injection cylinder is supplied to the movable mold and the fixed plate, And a casting device is formed by injecting the casting product into a space formed by a combination of the fixed mold and the fixed mold. The die casting device is provided with a jetting device for injecting a releasing agent to eject the releasing agent so that the casting can be easily taken out after the casting is taken out And more particularly, to a driving method of a die casting apparatus provided with a releasing agent injecting apparatus.

Die Casting is a precision casting method which is made by melting copper, aluminum and tin lead so as to have the same shape as the casting shape, and obtaining the same casting as the die. It does not need to be finished because it is accurate in dimensions, It is produced by automobile parts, electric devices, optical instruments, automobiles, textile machinery, construction and measuring instrument parts.

Prior art relating to such an apparatus and method of die casting includes a fixed die plate, a movable die plate, a stationary die attached to the stationary die plate, and a movable die attached to the movable die plate in Japanese Patent Publication No. 0854820 An electric mold clamping device for driving a mold opening / closing mechanism for moving the movable die plate by a servomotor, a chuck for gripping a product attached to a movable mold opened with a mold, and a chuck for holding the chuck at a standby position outside the mold, And a product take-out means having a chuck moving mechanism for moving the chucking member to an arbitrary position between the movable molds, the method comprising: a step of installing the product takeout means on the side of the fixed die plate; The position where the operation of gripping the product attached to the moving mold should be executed is referred to as the product Setting a relative positional relationship between a handle portion gripped by the chuck portion and a moving die plate as a part of the product attached to the moving die; A step of positioning the chuck portion between the movable mold and the stationary mold to position the chuck portion at the product takeout predetermined position; and a step of, as the middle of the movement stroke of the movable die plate, A step of stopping the movement of the movable die plate when the product reaches the product taking-out position; a step of holding the product by the chuck part and taking out the product from the movable mold; The chuck portion holding the product in parallel with the chuck portion is retracted to the standby position The product take-out method for a die-casting machine, characterized in that consisting of is disclosed properties.

Another prior art is disclosed in Japanese Patent Registration No. 1467427, which includes a fixed die and a movable die capable of being coupled to and detached from each other, and a hybrid mold having a cavity formed in the fixed die and the movable die for casting the engine bracket Being; An injection gate for injecting the molten metal into the cavity is disposed at one side of the cavity and a high vacuum is formed in the cavity so that the molten metal is overflowed from the cavity An overflow vent acting as a passageway is located in the other part of the cavity; Wherein a position where the injection gate and the overflow vent are arranged in the cavity is changed according to a shape of an engine bracket molded and cast in the cavity and the engine bracket is made of a flat body having a thin body thin body ) Type engine bracket, a Try Angle type engine bracket with a triangular rim to which a void is formed, a rectangular type engine bracket with a rectangular rim to which a void is formed, And a rigid-type engine bracket provided with a rigid-type engine bracket.

However, in the conventional die casting apparatuses and methods, there is no configuration of a device for applying a mold release agent to a mold so that a product can be easily taken out when a product is produced by die casting, or there is a lot of work for stopping the operation and manually performing the operation during die casting operation.

Disclosure of the Invention The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide a mold releasing agent injection device capable of automatically ejecting a mold releasing agent to a die to make it easy to take out a mold from a mold, The present invention provides a die-casting apparatus having a die-casting die.

A movable mold and a fixed mold are respectively mounted on the movable plate and the fixed plate, and a solution solution stored in the molten liquid tank by the injection cylinder is supplied to the movable mold, The method comprising: a first step of coupling a movable mold of the movable plate to a stationary mold of a stationary plate; A second step of injecting a solution solution into the inner space of the movable mold and the stationary mold by the injection cylinder; A third step of returning the movable mold to the original position together with the movable plate when the molten liquid is injected and solidified into the movable mold and the stationary mold; A fourth step of extracting the casting from the stationary mold; And a fifth step of spraying the mold release agent onto the entire surface of the movable mold by sensing the casting product being taken out by a sensing sensor. In the fifth step, the process from the first step to the fifth step is repeated.

As described above, the driving method of the die casting apparatus provided with the injection mold of the present invention has a remarkable effect such that the molded article is easy to take out, resulting in increased productivity, and a defect rate of the produced product can be reduced .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a die casting apparatus provided with a injection apparatus of the present invention; FIG.
2 to 3 are photographs of a work using a die casting apparatus equipped with the injection apparatus of the present invention.
4 is a partial photograph of a part of the die casting apparatus provided with the injection apparatus of the present invention.
FIG. 5 is a schematic view of another embodiment of a die casting apparatus provided with the injection apparatus of the present invention. FIG.
6 is an enlarged detail view of another embodiment of a die casting apparatus provided with the injection apparatus of the present invention.

The movable table 120 and the fixed plate 130 are provided with a movable mold 120 and a fixed plate 130 on the upper surface of the work table 110, And the molten solution stored in the melt tank 150 by the injection cylinder 140 is injected into the space formed by the engagement of the movable mold 121 and the stationary mold 131, The method of driving a die casting apparatus according to claim 1, wherein the movable mold (121) of the movable plate (120) is coupled to the stationary mold (131) of the fixed plate (131) The injection solution is injected into the inner space of the movable mold 121 and the stationary mold 131 by the injection cylinder 140; A third step of returning the movable mold 121 to the original position together with the movable plate 120 when the molten liquid is injected and solidified by the movable mold 121 and the stationary mold 131; A fourth step of extracting the casting from the stationary mold 131; And a fifth step of detecting the removal of the casting by the sensing sensor 170 and injecting a releasing agent onto the entire surface of the movable mold 121. After the fifth step, the step from the first step to the fifth step is repeated .

A sliding plate 160 for guiding the casting of the casted product is installed on the lower portion of the fixing plate 130. A sensing sensor 170 is mounted on the sliding plate 160, And an injection device 180 for injecting a releasing agent is provided on one side of the movable mold 121. When it is detected that the casting product is taken out from the sensing sensor 170, the injection device 180 injects the releasing agent onto the movable mold 121. [

The injection device 180 includes an injection nozzle 181 installed toward the movable mold 121 and a transfer pipe 182 which is a passage for supplying a release agent to the injection nozzle 181. The transfer pipe 182, And a releasing agent tank 183 containing a releasing agent for supplying the releasing agent.

In addition, an injection device for injecting a release agent toward the stationary mold 131 can be additionally constituted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method of driving a die casting apparatus provided with a injection apparatus of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a die casting apparatus provided with a mold releasing apparatus of the present invention, FIGS. 2 and 3 are photographs of a work using a die casting apparatus equipped with a mold releasing apparatus of the present invention, It is a partial photograph of a part of.

1 to 4, the die casting apparatus 100 of the present invention includes a work table 110 and a movable plate 120 and a fixed plate 130 on the upper surface of the work table 110, A movable mold 121 and a stationary mold 131 are mounted on the stationary plate 120 and the stationary plate 130, respectively.

The movable plate 120 is linearly moved in the horizontal direction on the upper surface of the work table 110. A movable mold 121 for molding a casting is mounted on the front surface of the movable plate 120, The fixed plate 130 is fixed to the upper surface of the work table 110, and a fixed die 131 for molding a casting is mounted on the front surface of the fixed plate 130.

Therefore, the molten solution stored in the melt tank 150 is injected into the space formed by the engagement of the movable mold 121 and the stationary mold 131 by the injection cylinder 140, thereby forming the casting product.

At this time, the die casting apparatus 100 is provided with the injecting device 180 for injecting the releasing agent into the movable mold 121, so that the casting can be easily taken out after the casting is formed.

In particular, a sliding plate 160 for guiding the casting of the cast article is installed on the lower portion of the fixing plate 130, and a sensing sensor 170 is mounted on the sliding plate 160.

The injection device 180 is provided at one side of the work table 110. When it is sensed that the casting product is taken out to the detection sensor 170, the injection device 180 moves the mold release agent to the movable mold 121, .

The sensing sensor 170 is mounted on a plate-like body. When the upper end of the sensing sensor 170 is hinged and the casting product is discharged along the sliding plate 160, the upper end of the sensing sensor 170 is hinged to the body, It will be possible.

For the sake of convenience, the sheet material and the detection sensor are not distinguished from each other, but are unified by the detection sensor.

That is, when the casting product is formed between the movable mold 121 and the stationary mold 131 and the casting product is taken out, the sliding plate 160, which is installed below the stationary plate 130, The detection sensor 170 mounted on the upper plate 160 senses the casting product being taken out and the mold release agent is sprayed onto the movable mold 121 through the injection device 180 for a new casting operation.

The sensing sensor 170 senses movement of a casting slid downward from a top surface of the sliding plate 160. The sensing sensor 170 senses whether the casting sliding on the top surface of the sliding plate 160 touches the sensor, Select one of the sensors.

The present invention is described using a touch sensor.

The injection device 180 includes an injection nozzle 181 installed toward the movable mold 121 and a transfer pipe 182 which is a passage for supplying a release agent to the injection nozzle 181. The transfer pipe 182 And a releasing agent tank 183 containing a releasing agent for supplying the releasing agent.

The release agent is a well-known generic drug.

Further, an injection device for injecting a release agent toward the stationary mold 131 may be additionally provided.

The injection device for injecting the releasing agent toward the stationary mold 131 is provided with a further transfer pipe connected to the release agent tank 183 and another injection nozzle directed toward the stationary mold 131 at the end of the transfer pipe Respectively.

A driving method of the die casting apparatus 100 having the above-described structure will be described as follows.

A first step of coupling the movable mold 121 of the movable plate 120 to the fixed mold 131 of the fixed plate 131; The injection solution is injected into the inner space of the movable mold 121 and the stationary mold 131 by the injection cylinder 140; A third step of returning the movable mold 121 to the original position together with the movable plate 120 when the molten liquid is injected and solidified by the movable mold 121 and the stationary mold 131; A fourth step of extracting the casting from the stationary mold 131; And a fifth step of sensing that the casting product is taken out by sensing with a sensor 170 and injecting a release agent onto the entire surface of the movable mold 121. The operation from the first step to the fifth step is repeated after the fifth step .

That is, in the first stage operation, the movable mold 121 of the movable plate 120 linearly moves and is coupled to the stationary mold 131 of the fixed plate 130.

It is preferable to apply the release agent to the movable mold 121 in advance so that the casting can be easily taken out before the first step operation.

After the first step operation, the injection cylinder 140 injects the solution into the inner space of the movable mold 121 and the stationary mold 131 through a two-step operation.

After the second step operation, when the molten liquid is injected into the movable mold 121 and the fixed mold 131 and solidified in the third step operation, the movable mold 121 returns to the original position together with the movable plate 120.

When the movable mold 121 is positioned in the home position together with the movable plate 120, a four-step operation is performed to remove the casting from the fixed mold 131.

After the fourth step operation, if the casting product is taken out from the stationary mold 131 in the fifth step operation, it is sensed by the detection sensor and the mold release agent is sprayed onto the front surface of the movable mold 121.

On the other hand, when the operation of the fifth step is completed, the operation is continuously repeated from the first step operation.

At this time, a method of solidifying the molten liquid in the movable mold 121 and the stationary mold 131 and a method of taking out the casting from the stationary mold 131 are conventional means, and a detailed description thereof will be omitted.

FIG. 5 is an outline view of another embodiment of a die casting apparatus provided with the injection mold of the present invention, and FIG. 6 is an enlarged detail view of another embodiment of a die casting apparatus provided with the injection mold of the present invention.

As shown in FIGS. 5 to 6, when the casting comes down to the sensing sensor 170 while descending along the sliding plate 160, the casting is made of a metal material, do.

When the sensing sensor 170 is continuously impacted by the casting product, the sensing sensor 170 may malfunction or be damaged. Therefore, in order to protect the sensing sensor 170, Was installed.

That is, a pair of guide frames 200 including a vertical frame 210 and a horizontal frame 220 are provided along both side lengths of the sliding plate 160, and the buffer plate 190 and the detection sensor 170 And the upper end thereof is hinged and fastened to the front.

The turnbuckle 300 is mounted between the buffer plate 190 and the sensor 170 so that the inclination of the sensor 170 can be adjusted.

The turnbuckle 300 includes a rotating body 310 having a nut hole at both ends in a longitudinal direction thereof and a screw rod 320 screwed to both ends of the rotating body 310 with a nut hole. When the rotating body 310 is rotated while the both ends of the screw rod 320 are engaged, the pair of screw rods 320 are close to each other Or, conversely, move away from each other.

Both ends of the pair of screw rods 320 are hinged to the buffer plate 190 and the detection sensor 170 while the buffer plate 190 is hinged to the center of the side surface. When the rotating body 310 is rotated by hinge coupling, the buffer plate 190 and the lower end of the detection sensor 170 are rotated in a direction away from each other or in a direction close to each other.

Since the buffer plate 190 contacts the sloped surface of the sliding plate 160, the buffer plate 190 does not rotate backward, and only the sensor 170 rotates forward Therefore, the inclination angle of the detection sensor 170 can be adjusted.

The intensity of impact applied to the sensing sensor 170 can be adjusted by adjusting the inclination of the sensing sensor 170 to tilt forward according to the shape or weight of the casting product.

That is, when the shape or weight of the casting is large, the inclination of the sensing sensor 170 toward the front is adjusted to be large, and when the shape or weight of the casting is small, the sensing sensor 170 is adjusted to be close to vertical .

In the horizontal frame 210 of the guide frame 200, an elongated hole 221 is formed along the longitudinal direction of the horizontal frame 210, and the inner side surface of the elongated hole 221 is continuously and repeatedly bent When the hinge shaft of the buffer plate 190 and the detection sensor 170 are inserted into the long holes 221 and both ends of the hinge shaft are fastened with fastening members such as nuts, It is possible to rotate in a state of being inserted into the insertion hole 221.

In particular, the inner surface of the elongated hole 221 is formed in an arcuate curvature so that the buffer plate 190 and the detection sensor 170 are rigidly hinged to each other in a state in which the gap between them is adjusted and the position is set.

The cushioning plate 190 is made of a metal material. When the casting product is in contact with the cushioning plate 190, a cushioning member 191 made of synthetic rubber or synthetic resin is attached to one side of the cushioning plate 190 to prevent the casting product from being damaged.

In another embodiment, the sensing sensor 170 is mounted as a sensor for sensing the strength of the impact, and the injection nozzles 181 are provided in two, and each of the injection nozzles 181 is configured to inject different amounts of the releasing agent The injection nozzle 181 for spraying the releasing agent is different depending on the strength of the impact.

That is, since the weight of the cast product to be produced varies depending on the shape and the size, the amount of the mold release agent injected to the movable mold 121 is adjusted when producing the product of high load and degradation, The strength of the impact is set to the detection sensor 170. When the intensity of the impact is detected to be greater than the set strength, the release agent is injected through the injection nozzle 181 through which the amount of the release agent is increased, If the amount of the release agent is detected, the release agent is controlled to be injected through the injection nozzle 181.

As described above, the driving method of the die casting apparatus provided with the injection mold of the present invention has a remarkable effect such that the molded article is easy to take out, resulting in increased productivity, and a defect rate of the produced product can be reduced .

100. Die casting device
110. Workbench
120. movable plate 121. movable mold
130. Fixing plate 131. Fixing mold
140. Injection cylinder
150. Melt tank
160. Sliding plate
170. Detection sensor
180. Injection device 181. Injection nozzle 182. Transfer tube
183. Release tank
190. buffer plate 191. buffer member
200. Guide frame 210. Vertical frame 220. Horizontal frame
221. Stall Hole

Claims (3)

And a movable plate 120 and a stationary plate 130 are fixed to the upper surface of the work table 110. The movable plate 120 and the stationary plate 130 are fixed with movable molds 121, The molten solution stored in the molten liquid tank 150 by the injection cylinder 140 is injected into the space formed by the engagement of the movable mold 121 and the stationary mold 131 to form a casting As a die casting apparatus,
A first step of coupling the movable mold 121 of the movable plate 120 to the fixed mold 131 of the fixed plate 130; The injection solution is injected into the inner space of the movable mold 121 and the stationary mold 131 by the injection cylinder 140; A third step of returning the movable mold 121 to the original position together with the movable plate 120 when the molten liquid is injected and solidified by the movable mold 121 and the stationary mold 131; A fourth step of extracting the casting from the stationary mold 131; And a fifth step of detecting the removal of the casting by the sensing sensor 170 and injecting a releasing agent onto the entire surface of the movable mold 121. After the fifth step, the step from the first step to the fifth step is repeated The method comprising the steps of:
A sliding plate 160 for guiding the casting of the casted product is installed on the lower portion of the fixing plate 130. A sensing sensor 170 is mounted on the sliding plate 160, And an injection device 180 for injecting a releasing agent is provided on one side of the mold 150. When it is detected that the casting product is taken out from the sensing sensor 170, the injection device 180 injects the releasing agent onto the movable mold 120,
The injection device 180 includes an injection nozzle 181 installed toward the movable mold 121, a transfer pipe 182 which is a passage for supplying a release agent to the injection nozzle 181, And a releasing agent tank 183 containing a releasing agent for supplying the releasing agent.
A pair of guides 200 including a vertical frame 210 and a horizontal frame 220 are installed along both sides of the sliding plate 160. A buffer plate 190 is disposed between the pair of horizontal frames 220, And the detection sensor 170 are hinged to each other to be rotatable to the front,
A turnbuckle 300 is mounted between the buffer plate 190 and the sensor 170 to adjust the inclination of the sensor 170,
The turnbuckle 300 includes a rotating body 310 having a nut hole at both ends in a longitudinal direction thereof and a screw rod 320 screwed to both ends of the rotating body 310 with a nut hole. When the rotating body 310 is rotated while the both ends of the screw rod 320 are engaged, the pair of screw rods 320 are close to each other Or conversely move in directions away from each other,
Since the buffer plate 190 contacts the sloped surface of the sliding plate 160 so that the buffer plate 190 does not rotate backward and only the sensor 170 rotates forward, The inclination angle of the sensor 170 can be adjusted,
The elongated hole 221 is formed in the horizontal frame 220 of the guide 200 along the longitudinal direction of the horizontal frame 220 so that the inner side surface of the elongated hole 221 is formed in an arc- The buffer plate 190 and the detection sensor 170 are inserted into the elongated hole 221 by inserting the hinge shaft of the buffer plate 190 and the sensor 170 into the hinge shaft 221 and then fastening both ends of the hinge shaft with a fastening member such as a nut. Wherein the releasing agent injecting device is capable of rotating in a state where the releasing agent is injected into the mold.
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