KR101988371B1 - Conveyance casing for tempered glass manufacturing equipment to induce reduction of heat loss during submerging of jig - Google Patents

Abstract

The present invention relates to a circular batch type chemically toughened glass manufacturing apparatus for inducing reduction of heat loss in elevation of a jig and, more specifically, to a circular batch type chemically toughened glass manufacturing apparatus for inducing reduction of heat loss in elevation of a jig, which arranges preheating, toughening, annealing, and water cooling baths in a circular moving path from an existing straight moving line to integrate an inlet bath and an outlet bat that have been individually installed so as to reduce facility cost and induce an increase of processing efficiency. Moreover, as an elevating door opening/closing unit opening a transfer casing simultaneously with lowering is formed between the transfer casing and a chamber, contact between a sheet glass and the outside is minimized when the jig is lifted or lowered to induce a heat loss decrease during elevation of the jig. To this end, according to the present invention, a toughened glass manufacturing apparatus sequentially transfers a sheet glass to each chamber of the preheating, toughening, annealing, and water cooling baths to toughen the sheet glass while the jog loading the sheet glass thereon is coupled to the lifting locking unit of a transfer unit to be elevated and horizontally moved. The preheating, toughening, annealing, and water cooling baths are arranged to form the circular moving path, and an inlet/outlet bath is arranged between the preheating bath and the washing bath for receiving the jig to supply the preheating bath with the jig having the sheet glass loaded thereon and withdrawing the jig to the outside having the sheet glass, which completes washing in the washing bath, loaded thereon. The transfer casing temporarily storing the jig to sequentially transfer the jig to each chamber comprises a rectangular parallelepiped casing housing with an opened upper part and an elevation door opening/closing unit installed on the lower side of the casing housing to be elevated, opened when being lowered, and closed when being lifted.

Description

Technical Field [0001] The present invention relates to a chemical-tempered glass manufacturing apparatus for inducing a reduction in heat loss during a down-loading of a jig,

[0001] The present invention relates to a circular arrangement type tempered glass manufacturing apparatus for inducing a reduction in heat loss when a jig is lifted and lowered, and more particularly, By unifying the loading and unloading chambers, it is possible to reduce the reduction of the facility cost as well as to increase the efficiency of the work process and to lower the loading space between the transferring casing and the chamber and to open the transferring casing. The present invention relates to an apparatus for manufacturing a tempered glass of a circular arrangement type that induces a decrease in heat loss during a jig ascending and descending so that the contact of the plate glass with the outside is minimized when the jig is lifted or lowered.

Generally, tempered glass is widely used as a screen of a display device. In order to manufacture a tempered glass having excellent hardness and strength, a tempering process of glass is required.

Generally, glass strengthening is classified into physical strengthening and chemical strengthening. In general, physical strengthening is performed by heating the glass at a temperature of 550 to 700 ° C. by using glass having a thickness of 5 mm or more, Which is mainly used for tempered glass doors, automobile glasses, and the like.

On the other hand, the chemical strengthening is to strengthen the glass by substituting the potassium ion of the sodium ion and the potassium nitrate solution in the glass by immersing the thin plate glass in the reinforcing furnace containing the potassium nitrate solution at 450 ° C for 3 hours or more, It is used to strengthen thin glass of 2.0mm or less.

Recently, a manufacturing apparatus capable of manufacturing tempered glass through a method of accelerating the ion exchange reaction rate of sodium ions and potassium ions in the glass surface layer by ion exchange of a small amount of molten salt in the melt containing the molten potassium salt Has been proposed.

1 is a perspective view of a tempered glass manufacturing apparatus for chemically tempering glass using such a potassium nitrate solution.

A loading rail 2 and an unloading robot 3 are provided along a guide rail 11. The main frame 1 is provided with a guide rail 11 and a rack rail 11 for transmitting power, The hot water tank 7 and the heat water tank 8 are transferred to the preheating tank 4, the tempering tank 5, the seawater cooling tank 6, the hot water tank 7, and the glass tank 8 by sequentially transferring the racks 12, And a control box 13 for managing the tempered glass manufacturing apparatus as a whole. The control box 13 is a reinforced glass manufacturing apparatus for carrying out the reinforcing processing and carrying out the jig 12 to which the completed tempered glass is mounted.

As described above, the tempered glass manufacturing apparatus comprises a main frame 1 as a basic frame, guide rails 11 which are parallel to both left and right sides of the main frame 1 so that the robot can move in parallel, A preheating tank 4 for heating the glass before the glass is firstly heated to prevent thermal deformation and cracking during the heating, and potassium nitrate (KNO3) is heated and melted to maintain the potassium nitrate in a molten state (6) for gradually cooling the temperature of the tempered glass in the tempering tank (5), a hot water tank (6) for washing the tempered glass cooled in the hot and cold bath (6) (7) and a heat water tank (8).

In the tempered glass manufacturing apparatus shown in FIG. 1, six baths are spaced apart from one another in the longitudinal direction, and each of the baths has an internal heating unit having a heater built therein. Each of the sets has a door rail A door that is opened and closed by a folding door is provided to prevent the temperature from being maintained or the inclusion of impurities.

In the reinforcement treatment of the disk glass, the jig transferred along the guide rails provided on the top of the e-mail frame is moved horizontally by the motor power to the jig on which the disk glass is mounted, so that the disk glass preheated in the preheater (4) ).

After the glass plate strengthening process is performed, the temperature is raised from 380 ° C. to 500 ° C. in preheating, and the temperature is maintained for 30 minutes to 120 minutes. To the potassium nitrate solution (KNO 3) heated to 450 ° C. in the tempering bath The glass plate was moved to the cold bath (6) for 4 ~ 6 hours so that the strengthening was performed. The tempered glass plate was gradually cooled to 100 ° C to remove the stress, and the first and second washing were performed in the hot water bath and the heat bath .

The sheet glass to be reinforced to be conveyed in the reinforcement treatment process of the disk glass is loaded on the jig and moved according to the process order by the jigger.

At this time, the plate glass is moved in parallel with the guide rail along the guide rails while being loaded on the stacking jig. In this case, the conveyance carriage is provided with a conveyance casing for accommodating the jig on which the plate glass is loaded. The conveyance casing may be selectively provided with a conveyance casing having no heater for heating the plate glass and a conveyance casing with a heater.

However, since it is advantageous to maintain the high temperature during chemical strengthening heat treatment of the plate glass, a conveying casing with a heater is usually selected and used.

The conveying casing is provided with elevating means for elevating and lowering the jig. The elevating means conveys the jig on which the plate glass is loaded during the reinforcing heat treatment process of the plate glass, from the conveying casing, to the preheating furnace, Down operation.

In this way, the jig carrying the plate glass is sequentially transferred to the preheating tank 4, the strengthening tank 5, the stationary cooler 6, the hot water tank 7 and the heat water tank 8 by means of the jig transferring. The transfer is carried out by preheating, chemical heat treatment or cooling process after the jig is conveyed to the target group to be carried and then separated and separated from the jig, and each door is closed in each group.

However, there is a problem in that the installation cost and the installation space are increased due to the fact that the loading and unloading jig for carrying the jig and the loading and unloading unit for carrying out the jig are completed after all the processes are completed and the jig is carried in each group through the transfer unit, There is a problem that thermal efficiency is deteriorated due to heat loss due to long-time opening.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for reducing a facility cost by uniting a preheating tank, a tempering tank, The lifting and lowering device for opening and closing the conveying casing is formed at the same time when the jig is lifted or lowered, The present invention relates to an apparatus for manufacturing a tempered glass of a circular arrangement type that induces a reduction in heat loss during a rising and falling of a jig, The present invention has been made in view of the above problems.

The present invention has the following features in order to achieve the above object.

The present invention relates to a tempered glass which is sequentially transported by each chamber of a preheating tank, a tempering tank, a desiccation tank and a washing tank as a jig for loading a plate glass is fastened by a lifting hook portion of a transfer unit unit and moved up and down and horizontally. In the manufacturing apparatus, the preheating tank, the tempering tank, the desiccation tank and the washing tank are arranged to have a circular movement path, and a jig is carried in between the preheating tank and the washing tank in order to supply the jig loaded with the plate glass by the preheating tank, The transfer casing temporarily stores the jig for sequentially transferring the jig to each chamber. The transfer casing has a hexahedron-shaped casing housing which is opened at the bottom; And a lifting / lowering device installed on the lower side of the casing housing so as to be able to move up and down and to be opened when lifted and closed when lifted or lowered.

Wherein the lifting / lowering mechanism includes a pair of door plates which are hingedly provided on an upper portion of the lifting casing, a pair of door plates provided on the upper portion of the lifting casing, And a cylinder actuator which is connected to a rod bracket formed on one side of the rising and falling casing to move up and down the rising and falling casing, wherein an induction projection protruding from one side of the door plate is formed on a guide groove formed on an inner wall surface of the casing housing, The guide protrusion is guided and moved on the guide groove according to the ascending and descending of the ascending and descending casing so that the door plate is opened or closed.

' 형상으로 형성된다. In addition,

'Shape.

According to the present invention, since the preheating tank, the strengthening tank, the desiccation tank, and the washing tank are formed into a circular path in the existing straight traveling path, Can be induced.

In addition, since the space between the casing and the transfer chamber of the jig is kept airtight, there is an advantage that the heat of the plate glass can be reduced to a minimum by preventing the plate glass from contacting with the atmosphere during the transportation of the jig.

Accordingly, it is possible to uniformly strengthen the glass surface by reducing the heat loss of the glass plate and to prevent cracks and the like of the glass plate, so that it is possible to stably and continuously produce the high-quality tempered glass plate.

In addition, the present invention can prevent the inflow of contaminants such as dust from the outside by protecting the space between the conveying casing and the preheating tank, the reinforcing tank, the cooler and the washing tank, There is an advantage that stability can be achieved.

In addition, since the potassium nitrate solution remaining in the plate glass subjected to the heat treatment process in the tempering bath is dropped during the transfer process, the door portion of the lifting and lowering door is blocked to prevent the potassium nitrate solution from entering the other chamber, There is an advantage that it can be minimized and the maintenance effort can be reduced.

1 is a perspective view showing an embodiment of a tempered glass manufacturing apparatus for manufacturing chemically tempered glass according to the prior art.
FIG. 2 is a layout diagram schematically showing an arrangement structure of a carry-in ironing tank, a preheating tank, a tempering tank, a summer cooling tank, and a washing tank of the tempered glass manufacturing apparatus according to an embodiment of the present invention.
3 is a front view of an apparatus for manufacturing tempered glass according to an embodiment of the present invention.
4 is a perspective view showing a conveying casing according to an embodiment of the present invention.
5 is an exploded perspective view of a transport casing according to an embodiment of the present invention.
6 and 7 are operational state diagrams illustrating a process of opening and closing a door of the transfer casing according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

First, the terminology used in the present application is used only to describe a specific embodiment, and is not intended to limit the present invention, and the singular expressions may include plural expressions unless the context clearly indicates otherwise. Also, in this application, the terms "comprise", "having", and the like are intended to specify that there are stated features, integers, steps, operations, elements, parts or combinations thereof, But do not preclude the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is a layout diagram schematically showing the arrangement structure of a carry-in ironing tank, a preheating tank, a tempering tank, a cooler and a washing tank of a tempered glass manufacturing apparatus according to an embodiment of the present invention. And Fig.

2 and 3, the tempered glass manufacturing apparatus to which the jig 80 for mounting a glass plate according to the present invention is applied includes a transfer unit unit 100, a carry-in and carry-out tank 20, a preheating tank 30, The reinforcing tank 40, the stagnation cooling tank 50, and the washing tank 60 are formed in a circular arrangement structure, and each process is sequentially performed.

Here, the preheating tank 30, the reinforcing tank 40, the cold / cool storage tank 50, and the cleaning tank 60 are disposed in a first layer of the entire structure and have a hexahedron chamber housing 31 , 41, 51, 61) are formed, and the carry-in and ironing tank (20) is formed as a hexahedron whose upper side is opened.

The guide rail 10 is horizontally disposed on the second layer of the entire structure so that the transfer unit unit 100 including the hexahedron shaped transfer casing 110 is arranged to face the left and right sides so as to be movable along the guide rail 10 do.

The opening and closing door 200 that moves along the railway 300 is installed in the preheating tank 30, the strengthening tank 40, the cold storage tank 50 and the washing tank 60 between the first and second layers of the structure So that the jig 80 can be carried in and out.

2, the conveyance unit 100 includes a conveying plate 20, a preheating tank 30, a tempering tank 40, a stationary cooling tank 50, (80) is placed in a rectangular parallelepipedal-shaped metal material conveyance casing (110), and the plate glass can be moved up and down to each process part according to a sequential process .

The transfer unit unit 100 includes a lifting hanger 120 for lifting or lowering the jig 80 into or out of the transfer casing 110 and a lifting and lowering driving unit for lifting and lowering the lifting hanger 120 130 and a connecting means 140 comprising a chain or wire connecting the lifting and lowering driving unit 130 and the lifting hanger 120.

In this embodiment of the present invention, the transfer unit unit 100 is fastened to the jig 80, and the transfer tray unit 20, preheating tank 30, reinforcing tank 40, One of the greatest features of the present invention is that the loading and unloading tray 20, the preheating tank 30, the reinforcing tank 30, 40, the washing and drying tank 50, and the washing tank 60 are formed in a circular arrangement structure, so that it is possible to reduce the installation cost and reduce the total installation space .

When the transfer casing unit 110 of the transfer unit unit 100 moves up and down the jig, the space between the transfer casing 110 and the chamber housings 31, 41, 51, It is possible to prevent the plate glass from coming into contact with the outside during the lifting and lowering of the jig 80 to increase the thermal efficiency and to eliminate the occurrence of defects due to rapid temperature changes of the plate glass.

FIG. 4 is a perspective view showing a conveyance casing according to an embodiment of the present invention, FIG. 5 is an exploded perspective view of a conveyance casing according to an embodiment of the present invention, and FIGS. 6 and 7 are cross- FIG. 10 is an operational state diagram showing a process of opening and closing a door of the transfer casing; FIG.

The conveyance casing 110 of the conveyance unit unit 100 according to the embodiment of the present invention can maintain the hermetic environment inside the jig 80 when the jig 80 is completely disposed in the conveyance casing 110, The space between the transfer casing 110 and the chamber is also kept in a hermetic environment during the process of lifting or lowering the jig 80 into the chambers of the reinforcement tank 40, ) Is configured such that the plate glass is not exposed from the outside air.

In order to provide such an airtight environment, the conveyance casing 110 is provided with a lifting and lowering device 112 at the lower side to open or release the jig 80 when the jig 80 is introduced or removed, At the same time, the ascending and descending casing 112a of the lifting / lowering portion 112 descends to the space between the casing housing 111 and the chamber so that the airtight environment with the outside can be maintained even during the transportation of the jig 80.

The conveyance casing 110 includes a casing housing 111 having a hexahedron shape with an opened bottom and a lifting and lowering door opening and closing unit 112 installed on the lower side of the casing housing 111 to be movable up and down, ).

4 to 7 schematically show only the casing housing 111 and the lifting / lowering device opening / closing part 112 for convenience of explanation, and the other components are omitted.

The casing housing 111 is made of a hexagonal metal material and the lifting hanger 210 is housed in an upper portion of the casing housing 111. The lifting hanger 210 is lifted up and down, The upper portion 220 is coupled to the upper outer surface of the casing housing 111.

A connecting means such as a chain or a wire for lifting and lowering the lifting hanger 210 by driving of the lifting drive unit 220 is inserted into the casing housing 111 through the casing housing 111, Lt; / RTI >

On the lower side of the casing housing 111, a lifting / lowering device opening / closing part 112 is opened or closed in order to inflow or outflow the jig 80. The lifting / lowering device opening / A pair of door plates 112b installed on the upper part of the elevating and lowering casing 112a so as to be hingable so as to be able to open and close the hinging and a door plate 112b provided on one side of the casing housing 111 The cylinder rod 123a includes a cylinder actuator 112c connected to a rod bracket 112ca formed on one side of the ascending and descending casing 112a to move the ascending and descending casing 112a up and down.

The upward and downward casing 112a is opened or closed by opening and closing the hinge of the pair of door plates 112b. The door plate 112b has an induction projection 112ba protruding from one side thereof, The guide protrusion 112ba is guided and moved on the guide groove 111a in accordance with the ascending and descending of the ascending and descending casing 112a which is located in the guide groove 111a formed in the inner wall surface of the casing housing 111, (112b) is opened or closed.

6, the elevating and lowering casing 112a is gradually lowered by the driving of the cylinder actuator 112c. As the elevating and lowering casing 112a is lowered, the door plate 112b is moved up and down by the elevating and lowering casing 112a The guide protrusion 112ba of the door plate 112b is gradually opened by the guide groove 111a of the inner wall surface of the casing housing 111 and the rising and falling casing 112a When fully lowered, the door plate 112b is also fully opened.

The descending length of the ascending and descending casing 112a is formed up to the upper side of the chamber of the preheating tank 30, the reinforcing tank 40, the stationary cold storage tank 50 and the washing tank 60 and is conveyed when the jig 80 is lowered It is preferable that the space between the casing 110 and the chamber housings 31, 41, 51, 61 is kept airtight.

' 형상의 곡선 형태로 이루어짐이 바람직하다. On the other hand, the guide groove 111a is not a straight line,

Shaped " shape.

It is preferable that the guide protrusion 112ba and the guide groove 111a are formed in the vicinity of the hinge forming portion of the door plate 112b as the ascending and descending path of the ascending and descending casing 112a is relatively short.

This is because if the guiding projection 112ba and the guide groove 111a are too far from the hinge forming portion of the door plate 112b, the upward / downward moving distance of the elevating / lowering casing 112a should be long. In this case, Or the distance between the transfer casing 110 and each of the chambers should be made long. However, since it is inefficient due to an increase in the installation space of the entire apparatus, it is preferable to form the chamber from the hinge- Do.

Meanwhile, the cylinder actuator 112c is preferably formed of a pneumatic or hydraulic cylinder. However, it is needless to say that the cylinder actuator 112c can be applied as another driving unit if the upward / downward casing 112a can vertically reciprocate.

When the jig 80 is introduced into or out of the conveying casing 110, the cylinder actuator 112c is driven to lower the elevating casing 112a, thereby opening the door plate 112b and completely moving the jig 80 And the door plate 112b is closed by driving the cylinder actuator 112c to move up and down the elevating and lowering casing 112a so that the inside of the conveying casing 110 and the conveying casing 110 The space between the chamber and the chamber is kept air-tight so that the contact with the outside can be blocked in the course of the jig 80 being conveyed to perform the subsequent process, and thus the process can be performed with minimized heat loss .

In addition, when the door plate 112b is introduced into the conveying casing 110 after the chemical strengthening of the plate glass is performed in the strengthening tank 40, the falling of the potassium nitrate solution in the course of conveying the plate glass is prevented, And also to prevent the occurrence of the accident.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to those precise embodiments, and many alternatives, modifications, and variations will be apparent to those skilled in the art. I will understand.

Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: guide rail 20: carry-in tray
30: preheating tank 40: reinforcing tank
50: Washing cooler 60: Washing tank
80: Jig 100: Feed unit
110: conveying casing 111: casing housing
112: lifting / lowering door opening / closing part 112a: lifting / lowering casing
112b: door plate 112c: cylinder actuator
120: lifting hook 130:

Claims (3)

The tempering bath 40, the cold bath 50, and so on as the jig 80 for mounting the plate glass is fastened by the lifting hanger 120 of the conveying unit 100, And a cleaning tank (60) to chemically reinforce the glass plate, the apparatus comprising:
The preheating tank 30, the tempering tank 40, the chilling tank 50 and the washing tank 60 are arranged to have a circular path of movement, and a preheating tank 30 is provided between the preheating tank 30 and the washing tank 60, A loading and unloading tray 20 for loading the jig 80 with the jig 80 loaded with the glass plate and the jig 80 loaded with the glass plate having been cleaned in the washing tank 60 is taken out to the outside Lt; / RTI &
In order to sequentially transfer the jig 80 by each chamber, the transfer unit unit 100 includes a casing housing 111 having a hexahedron shape with its bottom opened, and a casing housing 111 installed at a lower side of the casing housing 111 And a conveyance casing (110) for temporarily housing the jig (80) with a lifting and lowering opening / closing part (112)
The ascending / descending order word opening and closing unit 112,
A pair of door plates 112b provided at the upper portion of the elevating and lowering casing 112a so as to be capable of opening and closing the hinges, And a cylinder actuator 123c which is connected to a rod bracket 112ca formed on one side of the ascending and descending casing 112a to move up and down the ascending and descending casing 112a,
The door plate 112b,
An induction projection 112ba protruding from one side is located in an induction groove path 111a formed in an inner wall surface of the casing housing 111 and an induction projection 112ba is formed along the ascending and descending of the ascending and descending casing 112a And the door plate (112b) is opened or closed by being guided and moved on the guide groove (111a). delete delete

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