KR101843981B1 - Mold injection and discharge system of curved glass forming apparatus with index transfer system - Google Patents

Abstract

The present invention provides a mold injection and discharge system in a curved glass molding apparatus with an index transfer system, and specifically, in a curved glass molding apparatus manufactured with an index transfer system to minimize a space occupied by equipment, a structure for injecting and discharging a mold into a chamber is made into one unit to make the entire structure of the molding apparatus simple and compact, and only one gate is installed between the chamber and an input/discharge unit to discharge the mold which completed molding from the chamber, and at the same time, the mold to be immediately molded is injected into the chamber to remarkably improve the productivity and to reduce costs.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold injection and discharge system,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a molding input and output system for a curved glass molding apparatus, and more particularly, to a molding apparatus for molding a curved glass molding apparatus having an edge- The present invention relates to a mold injection and discharge system for a curved surface glass forming apparatus of an index conveying type, in which a structure for injecting and discharging a mold into a chamber is formed as a single unit so that the structure of the entire molding apparatus can be made compact and simple.

Conventionally, the glass has been in the form of a flat plate regardless of the type of the device, but in recent years, a smart phone such as a Galaxy S7 edge or a Galaxy Note Edge, In a portable terminal such as a smart watch that is a wearable device, a glass having a curved surface portion at one side or both edges is used, and a device using a glass having a curved surface portion at an edge is gradually enlarged.

In the case of a glass having a curved surface at the edge, a plate glass is put into a mold made of a lower mold and an upper mold, though a plate-shaped glass can be mass-produced in a desired thickness and size with an extrusion method at a low cost. Since the mold is produced by molding the curved part by applying heat and pressure to the mold, there are many differences from the flat plate shape in terms of production method and cost.

Technologies such as the patent registration No. 1206328 entitled " Cover Glass Molding Apparatus for Mobile Phone with Curved Side on One Side or Both Side "and Patent No. 1621216" Curved Glass Molding Machine " , Most of the curved glass forming apparatuses that have appeared to date including the above patent have the following problems. First, since a molding jig (mold) having a glass is moved linearly and a curved surface is formed in a glass, the space occupied by the equipment is widened because of the linear type, so that productivity and space utilization are not good.

Second, in order to form a curved portion at the edge of the glass, the molding jig (mold) must be heated to several hundreds of degrees Celsius (about 700 degrees Celsius). As the temperature increases, each mechanism portion expands due to thermal expansion, The flatness of the molding jig (mold) is distorted, and the upper portion of the molding jig (mold) is pressed in a state of being slightly inclined, so that the deflected portion is partially applied to the glass.

Third, since the buffer section, which is a section for waiting before the glass is put into the chamber, is not separately set, the loading section and the gate of the chamber are opened respectively, and the glass is directly introduced into the preheating section from the loading section Therefore, since the pushing operation of the pusher is extended, the operation time of the pusher is increased. Therefore, there is a problem in that the productivity is lowered as the whole process time is lengthened.

Fourth, the material of the forming jig (mold) is graphite. When the graphite reacts with oxygen existing in the chamber at a high temperature (about 300 ° C. or higher), powder is oxidized to be buried on the surface of the glass, (Mold) is weakened, the strength of the molding jig (mold) is weakened and the service life is shortened. Therefore, in order to prevent such a problem, the entire interior of the chamber in which the molding jig The nitrogen gas introduced into the chamber is injected through the outer wall of the chamber. Therefore, since it takes a long time to make the entire interior of the chamber a nitrogen atmosphere, the initial forming process is started There is a problem that it takes too much time to complete the process.

In order to solve the above problems, the applicant of the present invention has completed research and development by inputting a lot of manpower, time, and cost over a long period of time and finally completed the patent registration No. 1761742 entitled "Index- The present invention has been accomplished while continuing research and development for simplifying the configuration of the molding apparatus, reducing the cost, and improving the productivity.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a curved glass forming apparatus which is manufactured in an index type so as to minimize the space occupied by equipment, The structure for discharging can be formed as one unit, the structure of the entire molding apparatus can be made simple and compact, and only one gate is provided between the chamber and the charging / discharging unit to discharge the molded mold from the chamber, The present invention is to provide a mold injection and discharge system of a curved surface glass forming apparatus of an index conveying type which can reduce the cost and significantly improve the productivity by injecting the mold to be molded into the chamber.

The mold injection and discharge system of the curved surface glass forming apparatus of the index conveying type according to the present invention is characterized in that the mold inserted into the chamber is sequentially transferred along the circular shape at predetermined angles, The injection / discharge unit of the injection and discharge system is a unit for injecting a mold having a plate-shaped glass into the injection / discharge unit from the outside, Inlet; A gate provided between the charging / discharging unit and the chamber for discharging the mold having the curved glass formed at the edge thereof from the chamber and for introducing the mold with the glass plate into the chamber; A discharge port for discharging the mold having the curved glass molded therein at the edge discharged from the chamber through the gate, from the charging / discharging unit to the outside; An injection mold guide which is located outside of the injection port and into which a mold with a plate-shaped glass accommodated therein is pushed by a pusher into the injection / discharge unit through the injection port; A discharge mold plate for drawing a mold in which a curved glass mold is formed at the edge of the chamber, a discharge puller is pulled from the inside of the chamber through a gate to place the mold on an upper portion thereof; And a shuttle which is integrally formed with an injection mold plate in which a mold having a plate-shaped glass is housed in an upper portion and which is moved in a lateral direction along a shuttle guide in the injection / discharge unit. A mold with a curved glass molded edge is pulled out from the chamber through a gate to discharge the mold to the upper part of the discharge mold plate and the shuttle moves toward the discharge port, A pusher pushes the mold with the built-in plate glass into the gate, It characterized in that the work to be injected into the chamber.

Preferably, the injection mold guide has a plate-like plate in which a mold having a plate-shaped glass is placed on the upper side, and a guide in which a guide for guiding the mold when the plate-shaped glass is inserted into the injection / A first loading pusher which is provided on both sides and pushes the mold having the plate-shaped glass therein through the loading port to the closing mold plate of the shuttle installed in the loading / unloading unit, and a second loading pusher which guides the movement of the first loading pusher The first pushing-out guide is provided.

Preferably, the injection mold plate is constituted such that a mold having a plate-shaped glass built therein is provided with a first guide on both sides along a direction in which the mold is inserted from the injection mold guide, and the discharge mold plate has a curved glass And a third guide is installed at a rear end of the discharge mold plate in a direction perpendicular to the second guide.

Preferably, a discharge / dispensing guide for guiding the horizontal movement of the second dispensing pusher and the discharge puller is further provided, and a discharge port is provided at the distal end of the dispensing / / Down guide is installed and configured.

Preferably, a discharge pusher is further provided for pushing and discharging the mold with the glass molded with the curved surface at the edge discharged from the chamber to the outside of the injection / discharge unit through the discharge port while being placed on the discharge mold plate, A discharge pusher guide for guiding the horizontal movement of the discharge pusher is provided parallel to the shuttle guide at a predetermined interval, and a second up / down guide for guiding vertical movement of the discharge pusher is installed at one end of the discharge pusher guide .

Preferably, when the interior of the loading / unloading unit is equally divided into three sections in the left-right direction, the discharge mold plate and the closing mold plate constituting the shuttle occupy one section each, and the mold with the plate- Or when a mold having a curved glass molded on its edge is discharged, the shuttle is positioned over two successive sections.

The curved glass molding apparatus according to the present invention is not a linear type in which a molding jig moves linearly within a chamber to form a curved glass having a curved surface at an edge used in a portable terminal, Since the mold (the molding jig) rotates while rotating in a circular shape, the space occupied by the equipment is relatively small because it is an index type, so space utilization is good compared with productivity.

In addition, the mold injection and discharge system of the molding apparatus is provided with a charging unit for charging a mold with a plate glass into the chamber, and a discharging unit for discharging the mold from the chamber after molding the curved surface into a glass But the constitution of the entire molding apparatus is compact and simple because the charging unit and the discharging unit are constituted by one unit and the gates connected from the charging / discharging unit to the chamber are not one but two.

In addition, oxygen flows into the chamber from the outside every time the gate is opened. Since only one gate is provided between the chamber and the input / output unit, the time required to make and maintain the inside of the chamber in nitrogen atmosphere and the amount of nitrogen It is possible to significantly contribute to cost reduction, and the molded mold is discharged from the chamber and the mold to be molded is directly injected into the chamber.

1 is a plan view showing a curved glass forming apparatus according to the present invention.
2A to 2C are perspective views of the input / output unit in various angles.
3 is a view showing the configuration of the discharging / introducing part.
4 is a view showing the configuration of a discharge portion for discharging the molded mold to the outside of the charging / discharging unit.
5 is a view for explaining the process of discharging the mold from the chamber.
6 is a view for explaining the process of putting the mold into the chamber.

A technical feature of the mold injection and discharge system of the curved glass molding apparatus according to the present invention is that the structure for injecting the mold into the chamber and discharging the mold from the chamber is constituted in one input / output unit, Since only one gate is installed, the time required to make and maintain the inside of the chamber is maintained, the amount of nitrogen introduced, the time required to put the mold into the chamber and to discharge the chamber Can be significantly reduced, thereby contributing to cost reduction and productivity enhancement.

The present invention is applied to a mold insertion and discharge system applied to an index type curved glass molding apparatus in which a mold inserted in a chamber 20 is sequentially transferred at a predetermined angle along a circular shape to form a curved surface at the edge of the glass The injection / discharge unit 10 installed in the injection and discharge system is provided with an inlet / outlet unit 10 for injecting a mold having a plate-shaped glass accommodated in the injection mold guide 143 into the injection / A discharge port 12 for discharging the mold having the curved glass molded at the edge thereof from the charging / discharging unit 10 to the outside and a discharge port 12 formed between the charging / discharging unit 10 and the chamber 20 A gate 13 and a shuttle 16 that reciprocates within a predetermined interval within the charging / discharging unit 10. [

The injection port 11 is a structure for injecting the waiting cavity mold 31 which is a mold having a plate glass into the charging / discharging unit 10 from the outside and the discharging port 12 is connected to the chamber 20 And is configured to discharge the mold 34 to be discharged, which is a mold having a curved glass molded therein, at the discharged edge thereof from the charging / discharging unit 10 to the outside.

One of the characteristic features of the present invention is that only one gate 13 is provided between the input / output unit 10 and the chamber 20. The gate 13 has a curved glass The mold cavity discharge stand-by mold 33 is discharged from the chamber 20 to the charging / discharging unit 10 and the mold 32 to be charged with the plate glass is introduced into the chamber 20, / Discharge unit (10) and the chamber (20).

The curved glass molding apparatus according to the present invention is characterized in that only one gate 13 is provided between the injection / discharge unit 10 and the chamber 20, and a mold in which a curved glass is embedded at the edge, The mold 20 having the plate-shaped glass built in the upper part of the closing mold plate 161 is placed inside the chamber 20 Since the operation of injecting the molten metal into the mold 1 is carried out through the same gate 13, the entire configuration of the molding apparatus is compact and simple. Oxygen flows into the chamber 20 from the outside every time the gate 13 is opened. Since only one gate 13 is provided between the chamber 20 and the charging / discharging unit 10 The time required for forming and maintaining the inside of the chamber 20 in a nitrogen atmosphere and the amount of nitrogen input can be remarkably reduced to greatly contribute to the cost reduction and the mold to be formed immediately after being continuously discharged while discharging the molded mold from the chamber 20 Since it is injected into the chamber 20, the speed is very high, which can greatly contribute to the improvement of productivity.

The injection unit 14 located outside the injection port 11 is connected to the first injection pusher guide 142 by the bracket 141a and the mold with the glass plate built therein And an inserted mold guide 143 to be placed thereon. The injection mold guide 143 guides a plate having a plate in which a plate-shaped glass is placed and a mold in which a plate-shaped glass is placed, into the input / output unit 10 A pusher 141 is pushed by a push-in standby mold 31, which is a mold having a plate-like glass built in an upper portion of the plate, 11 to the inside of the input / output unit 10.

The first injection pusher 141 is a mold in which a waiting cavity mold 31 having a plate-like glass built-in is inserted through an injection port 11 into an injection molding plate 161 of a shuttle 16 installed in the injection / The first input pusher 141 is caused to perform a linear reciprocating motion in accordance with the guide of the first input pusher guide 142 and the first input pusher guide 142 is reciprocated in a linear reciprocating motion Any means can be used as a means for guiding the fluid, such as an LM guide, a cylinder, and an actuator.

A shuttle 16 is provided in the chamber 20 such that a discharge puller 181 in the chamber 20 pulls the discharge stand-by mold 33, which is a mold with a curved glass molded at the edge thereof, And an injection mold plate 161 in which a mold 32 to be introduced, which is a mold with a plate-like glass inserted from the injection mold guide 143, is placed on the upper side is formed into a single plate material, And is reciprocated in the left-right direction along the shuttle guide 166 in the insertion / ejection unit 10. The shuttle guide 166 may be any means capable of guiding a linear reciprocating motion, and examples include means such as an LM guide, a cylinder, and an actuator.

When the inside of the loading / unloading unit 10 is equally divided into three sections in the left and right directions, the discharge mold plate 162 and the closing mold plate 161 constituting the shuttle 16 occupy one section each, When the mold 32 into which the glass with tabular shape is to be inserted, is inserted into the chamber 20, the shuttle 16 is moved in the right first section 16, (See FIG. 6), the shuttle 16 is moved in the left first section (see FIG. 6) to eject the mold 20 from the chamber 20, which is a mold having a glass molded with a curved surface at its edge, (Refer to FIG. 5).

The discharge puller 181 is pulled out of the chamber 20 and discharged through the gate 13 to be placed on the discharge mold plate 162 with the molded release stand mold 33 having the curved glass molded at the edge thereof, The shuttle 16 is moved toward the discharge port 12 and the mold 32 to be charged, which is a mold having a plate-like glass embedded in the upper part of the closing mold plate 161, is moved to the second closing pusher 183 Is pushed into the chamber 20 through the gate 13 is performed at substantially the same time as the continuous operation.

The ejection / dispensing portion 18, which functions to eject the mold from the interior of the chamber 20 or into the chamber 20, includes a discharge puller 181, a first up / down in guide 184 for guiding the horizontal movement of the guide 182, the second press-in pusher 183, the second press-in pusher 183, and the discharge puller 181, do.

The discharge puller 181 is configured to discharge the discharge waiting mold 33, which is a mold having a curved glass molded at the edge thereof, inside the chamber 20, from the inside of the chamber 20, And is guided by the guide of the discharging / inserting guide 184 to enter the chamber and then the rear end of the bracket 183a connecting the second discharging pusher 183 and the discharging / inserting guide 184, Down guide 182 installed in the discharge waiting chamber 181 and then discharged downward in the state in which the discharge puller 181 is in contact with one end of the discharge waiting mold 33, Down guide 182 in accordance with the guide of the first up / down guide 182 while pulling up the discharge waiting mold 33 to the outside of the chamber and placing it on the upper part of the discharge mold plate 162 up and returns to the initial position before the operation (see Figs. 3 and 5).

The mold releasing standby mold 33 having the curved glass molded on the edge thereof is placed on the discharge mold plate 162 and the closing mold plate 161 is moved to the gate The second injection pusher 183 is moved in the direction of the mold 32 to be introduced into the mold in which the plate glass is placed on the injection mold plate 161 in accordance with the guide of the discharge / The mold is advanced to the inside of the chamber by pushing the rear side of the chamber, and then the mold is inserted. Then, the mold is moved backward according to the guide of the discharge / insertion guide 184 and returned to the initial position before operation. .

The second input pusher 183 is connected to the rear end of the ejection / insertion guide 184 by the bracket 183a and the first up / down guide 182 is connected to the rear end of the ejection / And the piston 182a and the discharge puller 181 which are operated together with the first up / down guide 182 are connected to each other by a bracket 181a, and the first up / down guide 182 is connected to the vertical So as to guide the vertical movement of the discharge puller 181. The discharge / insertion guide 184 and the first up / down guide 182 can be any means capable of guiding the linear reciprocating motion, and examples thereof include an LM guide, a cylinder, and an actuator.

The discharge portion 19 for discharging the molded mold having the curved surface formed on the plate on the plate of the discharge mold plate 162 to the outside from the charging / discharging unit 10 includes a discharge pusher 191 and a discharge pusher guide 192 And a second up / down guide 193. The ejection pusher 191 is configured such that a mold in which a glass having a curved surface formed at the edge of the ejected from the chamber 20 is embedded is formed on the ejection mold plate 162 The discharge pusher guide 192 is configured to guide the horizontal movement of the discharge pusher 191. The discharge pusher guide 192 is configured to guide the horizontal movement of the discharge pusher 191, Down guide 193 is a structure for guiding the movement of the discharge pusher 191 in the vertical direction.

The discharge pusher guide 192 is installed parallel to the shuttle guide 166 for linearly reciprocating the shuttle 16 at a predetermined distance and a second up / down guide 193 is provided above the rear end of the discharge pusher guide 192, And the piston 193a is operated with the second up / down guide 193 and the piston 193a and the discharge pusher 191 are connected by the bracket 191a 4).

When the molded mold having a curved edge is discharged from the chamber and is placed on the plate of the discharge mold plate 162, the discharge pusher guide 192 is moved to the rear end The second up / down guide 193 installed in the vertical direction is operated and the piston 193a is operated to lower the lower end of the discharge pusher 191 so as to touch the second guide 164 of the discharge mold plate 162 Next, in accordance with the guide of the discharge pusher guide 192, the discharge pusher 191 advances, and the rear end of the mold is pushed out to the outside of the input / output unit 10, The pusher 191 is retracted and the second up / down guide 193 is operated again to raise the discharge puller 191 to return to the state before operation. Any one of the ejection pusher guide 192 and the second up / down guide 193 can be used as long as it can guide the linear reciprocating motion. Examples of such a means include an LM guide, a cylinder, and an actuator.

The mold of the injection mold plate 161 is provided with a first guide 163 on both sides along the direction in which the mold with the glass plate is inserted from the injection mold guide 143, Is provided with a second guide 164 on the side of the injection mold plate 161 along the direction in which the mold having the curved glass molded on its edge is discharged from the chamber 20, And a third guide 165 is provided at a rear end portion thereof in a direction perpendicular to the second guide 164. The third guide 165 and the first guide 163 provided on the side of the discharge mold plate 162 may be integrally formed.

The discharged mold 35, which is a mold in which a glass having a curved surface is embedded at the edge discharged from the injection / discharge unit 10 through the discharge port 12, is moved to a certain place by a robot (not shown) .

The turntable 22 is rotated at a predetermined angle with the rotary shaft 21 as a center and the turntable 22 is divided by a predetermined angle so that the rotary guide 23 is installed, The mold 30 is placed and the curved surface is formed at the edge of the glass by sequentially moving the preheating section, the molding section, the slow cooling section, and the quenching section by one pitch divided by a predetermined angle. The molding apparatus is not a structure to be protected by the present invention, and thus a detailed description thereof will be omitted.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalents thereof should be construed as being included in the scope of the present invention.

10: input / output unit
11: inlet 12: outlet
13: Gate 14:
141: first input pusher 142: first input pusher guide
143: an inserted mold guide 16: a shuttle
161: an injection mold plate 162: an exhaust mold plate
163: first guide 164: second guide
165: Third Guide 166: Shuttle Guide
18: Discharge / dispensing portion 181: Discharge puller
182: first up / down guide 183: second pusher,
184: exhaust / input guide 19: exhaust
191: Discharge pusher 192: Discharge pusher guide
193: 2nd up / down guide
20: chamber
21: rotating shaft 22: turntable
23: Rotating Guide
30: mold 31: mold for injection
32: Mold to be injected 33:
34: mold to be discharged 35: discharged mold

Claims (7)

An injection and discharge system for a mold applied to an index type curved glass forming apparatus for forming a curved surface at an edge of a glass while a mold placed in a chamber is sequentially transferred at predetermined angles along a circular shape,
The input / output unit of the input /
An injection port for injecting a mold having a plate glass into the injection / discharge unit from the outside;
A gate provided between the charging / discharging unit and the chamber for discharging the mold having the curved glass formed at the edge thereof from the chamber and for introducing the mold with the glass plate into the chamber;
A discharge port for discharging the mold having the curved glass molded therein at the edge discharged from the chamber through the gate, from the charging / discharging unit to the outside;
An injection mold guide which is located outside of the injection port and into which a mold with a plate-shaped glass accommodated therein is pushed by a pusher into the injection / discharge unit through the injection port;
A discharge mold plate for drawing a mold in which a curved glass mold is formed at the edge of the chamber, a discharge puller is pulled from the inside of the chamber through a gate to place the mold on an upper portion thereof; A shuttle which is integrally formed with an injection mold plate in which a mold having a plate-shaped glass is housed in an upper part, and which is moved in the lateral direction along the shuttle guide from inside the injection / discharge unit;
A mold having a curved glass molded on its edge is pulled out from the chamber by the discharge puller and discharged through the gate to be placed on the upper part of the discharge mold plate and the shuttle is moved toward the discharge port And a mold having a plate-shaped glass placed on the upper side of the closing mold plate is pushed by a pusher to be introduced into the chamber through a gate. Input and output systems.
The method according to claim 1,
The injection mold guide includes a plate in which a mold having a plate-shaped glass therein is placed, and a guide for guiding the mold when the mold with the plate-shaped glass is inserted into the injection / discharge unit And is installed on both sides along the direction of the vehicle,
A first injection pusher for pushing a mold having a plate-shaped glass therein to an injection mold plate of a shuttle installed in the injection / discharge unit through an injection port, a first injection pusher for guiding the movement of the first injection pusher, And a guide is further provided on the mold opening and closing system.
The method according to claim 1,
Wherein the mold is provided with a first guide on both sides along a direction in which a mold having a plate-shaped glass is inserted from the mold insert guide,
And a second guide is provided to the injection mold plate along the direction in which the mold having the curved glass molded at the edge thereof is discharged from the chamber, and a second guide is provided at the rear end of the discharge mold plate in the direction perpendicular to the second guide. 3 guides are installed on the upper and lower sides of the mold.
The method according to claim 1,
And a second up / down guide for guiding the up / down movement of the discharge puller is provided at a front end portion of the up / down guide for guiding horizontal movement of the second press / and an up / down guide is installed on the upper surface of the mold.
The method according to claim 1,
A discharge pusher is further provided for pushing the mold with the curved glass molded at the edge thereof discharged from the chamber to the outside of the injection / discharge unit through the discharge port while the mold is placed on the discharge mold plate ,
A discharge pusher guide for guiding the horizontal movement of the discharge pusher is installed parallel to the shuttle guide at a predetermined interval. A second up / down guide for guiding vertical movement of the discharge pusher is installed at one end of the discharge pusher guide And a mold insertion and discharge system of a curved surface glass forming apparatus of an index conveying type.
The method according to claim 1,
When the inside of the loading / discharging unit is divided into three sections in the left and right direction, the discharge mold plate and the closing mold plate constituting the shuttle occupy one section each,
Wherein the shuttle is positioned over two successive sections when a mold having a plate-shaped glass is inserted or a mold having a curved glass formed at an edge thereof is discharged, Mold injection and discharge system.
The method according to claim 1,
Wherein the shuttle guide is configured to linearly move the shuttle using one of an LM guide, a cylinder, and an actuator.

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