KR101995321B1 - Tempered glass manufacturing apparatus having a circular arrangement structure - Google Patents

Abstract

The present invention relates to an apparatus of manufacturing strengthened glass having a circular arrangement structure and, more specifically, to an apparatus of manufacturing strengthened glass having a circular arrangement structure, wherein a pre-heating bath, a strengthening bath, an annealing bath, and a washing bath are provided in a circular moving path, rather than a linear moving path of a conventional case, such that instead of providing an import bath and an export bath, separately, an integrated import/export bath is provided, thereby reducing facility costs as well as inducing an increase in processing efficiency of operation. To this end, the apparatus of manufacturing strengthened glass is configured to such that a jig for mounting plate glass is fastened by a lifting hanging unit of a transfer unit and configured to be sequentially transferred to the pre-heating bath, the strengthening bath, the annealing bath, and the washing bath while moving vertically and horizontally, and thus, the plate glass is strengthened, wherein the pre-heating bath, the strengthening bath, the annealing bath, and the washing bath are arranged to have a circular moving path, and an import/export bath is disposed between the pre-heating bath and the washing bath, such that the jig, on which the plate glass is mounted, is imported to be supplied to the pre-heating bath, and a jig, on which plate glass completely washed in the washing bath is mounted, is exported to an external side.

Description

[0001] The present invention relates to a chemical tempered glass manufacturing apparatus having a circular arrangement structure,

The present invention relates to a tempered glass manufacturing apparatus having a circular arrangement structure, and more particularly, to an apparatus for manufacturing a tempered glass having a circular arrangement structure, more specifically, a preheating furnace, a tempering furnace, The present invention relates to a tempered glass manufacturing apparatus having a circular arrangement structure capable of reducing a decrease in facility cost as well as an increase in work process efficiency.

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 guide rail and a rack gear 11 for transmitting power are provided in parallel to the main frame 1 and the upper left and right sides of the main frame 1. The jig transmission unit 2 and the unloading robot 3 are mounted on the guide rail 11, 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.

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, since the jig conveying unit is constituted by one unit, the process time required for strengthening a unit of glass plate mounted on the jig becomes the time for performing the major definition. Therefore, the amount of tempered glass produced compared to the amount of supplied resources There is a problem in that the production time required for strengthening the unit glass of one unit is too much and the overall production yield is low.

In addition, there is a problem in that the installation cost and the installation space are increased because the carrying-in unit for carrying the jig and the carrying-out unit for carrying out the jig are completed.

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, And it is an object of the present invention to provide a tempered glass manufacturing apparatus having a circular arrangement structure capable of inducing an increase in work process efficiency.

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, And a carry-out tray for taking out the jig loaded with the completed plate glass is disposed.

In this case, each of the preheating tank, the tempering tank, the desiccation tank, and the washing tank is performed for 30 minutes to 1 hour, and the transfer unit for transferring the jig includes the loading / unloading / And the upper part of the washing and drying tank, and the upper part of the washing and washing tank, respectively, and the jigs are sequentially transferred to the post-process after the respective processes are completed at the same time.

According to the present invention, there are provided five transfer unit units for each transfer process, and since the execution time of each process is made the same, all the processes are continuously performed at the same time, thereby increasing the production amount, There is an effect that the thermal efficiency can be increased.

In addition, the unification of the loading and unloading units into the unloading and unloading unit can reduce the installation cost and installation space.

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 view showing a combination of a chamber housing and an opening / closing door according to an embodiment of the present invention.
5 is a plan view of an opening / closing door according to an embodiment of the present invention.
6 is a view illustrating an operation of the door 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 one embodiment of the present invention, such a transfer unit unit 100 is provided at a total of five places on the conveying and transferring tank 20, preheating tank 30, reinforcing tank 40, The jig 80 housed in the chamber housing 31, 41, 51, 61 located at the lower side or the jig 80 accommodated in the loading and unloading tray 20 is lifted and horizontally moved on a circular path for performing the next process .

One of the greatest features of the present invention is that the loading and unloading tray 20, the preheating tank 30, the reinforcing tank 40, the stationary cooling tank 50, and the washing tank 60 are formed in a circular arrangement structure, It is possible to reduce the facility cost and the total installation space by providing one unit that needs to be provided separately.

In addition, the transfer unit unit 100 is provided at a total of five places, and the execution time of the preheating, strengthening, slow cooling, and cleaning processes is performed in the range of 30 minutes to 1 hour, As the transportation is carried out, the production per hour of the same process is increased 5 ~ 6 times compared with the previous one.

In order to produce the plate glass loaded on one jig 80, the process of carrying in, preheating, strengthening, slow cooling, washing and taking out should all be performed. In the present invention, however, five jigs 80 are continuously brought in By carrying out the pre-heating, pre-heating, strengthening, slow cooling and washing processes, it is possible to continuously produce the plate glass loaded on one jig 80 for each process time, namely, 30 minutes to 1 hour.

Accordingly, in addition to the facility cost reduction and the production efficiency increase by the circular arrangement, the production efficiency can be remarkably increased through the equalization of the process execution time with the five transfer unit units 100.

The transfer unit unit 100 includes a guide rail 10 disposed in a circular path on each of the chamber housings 31, 41, 51 and 61 or the carry-in and-out tray 20, And the jig 80 is disposed in the conveyance casing 110. The jig 80 is temporarily installed in the inside of the conveying casing 110 so that the jig 80 can be received temporarily. A lifting hanger 120 for lifting and lowering the jig 80 and a lifting hanger 130 for lifting and lowering the lifting hanger 120 and lifting hanger 120 and lifting hanger 130 And a connecting means 140 such as a wire or a chain for connecting the connecting means.

The lifting hanger 120 is connected to the lifting hanger 120 and the lifting hanger 120 through the connecting means 140. The lifting hanger 120 is connected to the lifting hanger 120 by a connecting means 140, And a lifting and lowering driving unit 130 for lifting and lowering the lifting and lowering driving unit.

In addition, a heating unit 111 for controlling the temperature is installed in the transfer casing 110 to temporarily store the jig 80 to be subjected to the respective processes and to create an atmospheric temperature so that the plate glass is not rapidly cooled during the transfer.

FIG. 5 is a plan view of an opening / closing door according to an embodiment of the present invention, and FIG. 6 is a cross-sectional view of a chamber door according to an embodiment of the present invention And Fig.

Referring to the drawings, a chamber housing 31, 41, 51, 61 of a preheating tank 30, a tempering tank 40, a chilling tank 50 or a washing tank 60 according to an embodiment of the present invention includes a jig 80 The opening and closing door 200 is formed at an upper portion thereof for carrying in and out of the chamber housing 31, 41, 51 and 61, Closing section 220 and the cut-off section opening / closing block 220 so that the process can be performed while the jig 80 is connected to the jig 80 without lifting and discharging the jig 80 even after the jig 80 is seated. do.

That is, the present invention relates to a structure of an opening / closing door 200 that can close each of the chamber housings 31, 41, 51, and 61 without interfering with a connecting means 140 such as a wire or a chain.

4 to 6, the chamber housing and the opening and closing door 200 are schematically shown for convenience of explanation.

The opening and closing door 200 according to the present invention is formed in at least one shape in which the opening and closing cutout portion 210 is inwardly inward from the outside.

The opening and closing cutout 210 is formed at a position where the opening and closing door 210 does not interfere with the opening and closing door 200 even when the opening and closing door 200 moves in the closing direction in a state where the connecting means 140 is partially disposed in the chamber housing. 210 are preferably configured such that the open space is reduced as much as possible considering the number of lifting hatches 120, the spacing therebetween, and the size of the connecting means 140.

In the drawings of the present invention, four lifting hanger parts 120 are arranged in left and right directions.

When the jig 80 is seated in the preheating tank 30, the reinforcing tank 40, the cold storage tank 50 or the cleaning tank 60 while the jig 80 is fastened to the lifting hanger 120, the lifting hanger 120 Is lifted and separated from the jig 80 through the lifting guide 130 and the lifting hook 120 is lifted from the preheating tank 30, the tempering tank 40, the cooler 50 or the washing tank 60 The door 30 is fully lifted and then the preheating tank 30, the reinforcing tank 40, the cooling / cooling bath 50 or the opening / closing door 200 of the washing tank 60 is closed and preheating, chemical heat treatment or cooling is performed. The lifting hook 120 is lowered and then fastened to the jig 80 when the preform 120 is separated from the jig 80 to perform preheating or cooling.

Therefore, in order to omit the separation and re-fastening process of the lifting hanger 120, the lifting hanger 120 may be installed in the preheating tank 30, the reinforcing tank 40, the stationary cold storage tank 50, Closing door 60 of the preheating tank 30, the tempering tank 40, the seawater cooling tank 50, or the washing tank 60 is closed with the jig 80 mounted thereon, and preheating or cooling is performed can do.

The opening and closing door 200 of the preheating tank 30, the tempering tank 40, the cooler 50 or the washing tank 60 may be connected to a wire or a chain connecting the lifting hanger 120 and the lifting hinge 130, The open / close cutout 210 must be formed as described above since it must be a structure that can be opened and closed without interfering with the same connecting means.

Accordingly, the operation time can be greatly reduced by omitting the lifting hanger 120 from being separated and re-fastened to the jig 80, and the preheating tank 30, the tempering tank 40, It is possible to prevent heat loss due to frequent opening of the washing tub 50 or the washing tub 60.

However, when only the opening and closing cutout portion 210 is formed, heat loss occurs due to contact with the outside air due to the open / close cutout portion 210, so that the cutout opening and closing block 220 is opened to minimize the opening space of the open / And a block driver 230 for opening or closing the opening / closing block 120 by the incision.

The cutting section opening / closing block 220 is formed in a hexahedron shape and has a groove 221 formed therein so as not to interfere with the connecting means 140 such as a wire or a chain connecting the lifting hanger 120 and the lifting / do.

Accordingly, when the lifting hanger 120 performs preheating or cooling without being separated from the jig 80, the opening and closing door 200 is first moved in the closing direction, and when the opening and closing block 120 is opened in the fully closed state Closing direction so as to minimize the heat loss of the chamber housing.

When the jig 80 is to be moved up to the next process, the above-described process is reversed and opened.

In addition, a sealing member made of a soft material and a material having excellent heat resistance may be coupled to the inner wall surface of the groove 221 to prevent further heat loss.

The heat loss can be minimized by such a sealing member. .

It is preferable that the opening and closing direction of the opening and closing door 200 is opened and closed in a direction orthogonal to the conveyance direction of the conveyance unit unit 500. In the case of the opening and closing guide unit 400, the cylinder actuator is shown as a cylinder actuator, The opening and closing door 200 can be transferred by means of the door, and the present invention is not limited thereto.

In addition, the opening and closing door 200 and the chamber housings 31, 41, 51, and 61 or the railway 300 are opened or closed in a state where they are in contact with each other. However, A plurality of rollers may be provided on the bottom surface of the door 200 or on the upper surface of the chamber housing or the railway 300.

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.

20: Bringing-in tray 30: Preheating tank
40: Strengthening group 50: West cold
60: washing tub 80: jig
80a: upper plate frame 80b: lower plate frame
80c: Side plate frame 80d: Extension frame
81: air flow path 82: air supply part
82a: air supply housing 82b: air storage part
82c: air supply regulator 82d: air flow tube
83: discharging part 100: conveying unit part
110: conveying casing 111: heating means
120: lifting hook 130:
140: connecting means 200: opening / closing door
210: opening / closing cutout 220: opening / closing block
221: groove portion 230: block driving portion
300: by rail 400: opening / closing eastern

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 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 &
The jig 80 is attached to the lifting hanger 120 on the opening and closing door 200 that opens the upper portions of the chambers of the preheating tank 30, the strengthening tank 40, the stationary cold storage tank 50, Closing cut-out portion 210 for preventing interference with the connecting means 140 of the chain or wire connected to the lifting hanger portion 120 so as to be able to be closed in a state of being locked in the chambers, At least one of which is inwardly inwardly formed,
An incision opening and closing block 220 selectively opening or closing the opening and closing cutout 210 according to the movement of the upper side of the opening and closing door 200 where the opening and closing cutout 210 is formed, Closing block 220 in a direction to open or close the cut-off portion opening / closing block 220,
Wherein the incision opening and closing block 220 is formed in a hexahedron shape and has at least one groove 221 to which a sealing member for hermetic sealing is coupled. .
The method according to claim 1,
The process time of each of the preheating tank 30, the tempering tank 40, the desiccation tank 50 and the washing tank 60 is 30 minutes to 1 hour. A chemical strengthening glass manufacturing apparatus.
3. The method of claim 2,
The transfer unit unit 100 for transferring the jig 80 includes:
And the washing tub 60 are provided at a total of five places on the upper side of the loading / unloading / transferring tank 20, the preheating tank 30, the strengthening tank 40, the stationary cold storage tank 50 and the washing tank 60, And each jig (80) is sequentially transferred.

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