Chemical strengthening apparatus for glass bottle

Abstract

The present invention relates to a chemical strengthening apparatus for a glass bottle and, more specifically, to a chemical strengthening apparatus for a glass bottle, wherein a chemical process for compensating for a reduction in strength due to lightweighting or ultra-lightweighting of glass bottles is continuously performed in a bottle making process to thereby rapidly and inexpensively perform chemical strengthening treatment, thus reducing manufacturing costs of glass bottles and enabling mass production, leading to an improvement in productivity.

Description

Glass bottle chemical strengthening device

[0001] The present invention relates to a glass bottle chemical strengthening device, and more particularly, to a glass bottle chemical strengthening device that allows a chemical process for compensating for a decrease in strength due to a reduction in the weight or ultra-lightness of a glass bottle to be continuously performed within a bottle manufacturing process, thereby allowing a chemical strengthening treatment process to be performed quickly and at a low cost, thereby reducing the cost of manufacturing glass bottles and enabling mass production, thereby improving productivity.

[0002] Policies to curb the use of plastics are being implemented in various countries due to various environmental and waste disposal issues, and as a result, the demand for various plastic alternatives is rapidly increasing.

[0003] Low-cost glass containers are gaining attention as an alternative to plastic containers, but they are still struggling to generate demand due to their heavy weight and fragile nature.

[0004] Accordingly, there is an urgent need to develop high-strength, lightweight glass containers that are lightweight and have high impact / pressure resistance.

[0005] However, when the glass bottle is made lighter, the strength of the ultra-light bottle decreases to 0.4 while that of a regular bottle is 1.2, so it is necessary to improve the strength after making it lighter. To this end, direct strength improvement methods such as dual coating (Hot End, Cold End), plastic coating, chemical strengthening, and physical strengthening, as well as thickness distribution uniformity methods such as NNPB (Narrow Neck Press and Blow) molding, Verti flow method, and Vacuum forming method are being used.

[0006] Among the methods for improving strength, chemical strengthening is a method in which sodium (Na+) ions in the SiO2 network structure on the surface of the glass bottle are replaced with potassium (K+) ions in the potassium-based molten salt by precipitation in a potassium-based molten salt. However, applying dipping to the bottle manufacturing process has problems such as the large volume limiting the number of processes per cycle, the need for special grippers (jigs), and the long dipping time (reaction time) that reduces productivity and economy. Furthermore, because the dipping method is performed as an additional process after the glass bottle manufacturing process is complete, it is low in economy and efficiency.

[0007] Considering these problems, the inventors of the present invention studied a method of continuously chemically strengthening glass bottles on a conveyor between the post-molding surface treatment process and the annealing process.

[0008] (Patent Document) Patent Publication No. 10-1469508 (registered on December 1, 2014) "Chemical Strengthening Treatment Device"

[0009] The present invention has been devised to solve the above problems.

[0010] The purpose of the present invention is to provide a glass bottle chemical strengthening device that allows a chemical process to be continuously performed within a bottle manufacturing process to compensate for the decrease in strength due to the lightweight or ultra-light weight reduction of glass bottles, thereby performing a chemical strengthening treatment process quickly and at low cost, thereby reducing the manufacturing cost of glass bottles and enabling mass production, thereby improving productivity.

[0011] The purpose of the present invention is to provide a glass bottle chemical strengthening device that can store a large amount of molten salt by forming a storage space for potassium-based molten salt separately in a sealed space on the upper side of a conveyor, prevent contamination of the molten salt, and facilitate management of the storage space.

[0012] The purpose of the present invention is to provide a glass bottle chemical strengthening device that can solve the problem of molten salt solidifying during the supply process by maintaining the temperature of a path through which molten salt is supplied.

[0013] The purpose of the present invention is to provide a glass bottle chemical strengthening device that can perform a chemical strengthening process on glass bottles in a closed space with a compact structure, thereby minimizing the volume occupied by the device and increasing the strengthening effect, thereby contributing to improving productivity and glass bottle quality.

[0014] In order to achieve the above-mentioned purpose, the present invention is implemented by an embodiment having the following configuration.

[0015] According to one embodiment of the present invention, a chemical strengthening device for a glass bottle according to the present invention is characterized by including: a coating chamber forming a space in which a potassium-based molten salt is sprayed onto a glass bottle transported by a transport rail; a melting furnace formed separately on an upper side of the coating chamber to contain a potassium-based molten salt for chemical strengthening the glass bottle in a sealed state; a pair of flow pipe assemblies formed on both sides of the coating chamber, which are connected to the bottom of the melting furnace and supply the potassium-based molten salt in a molten state downward; a nozzle pipe assembly connected to the lower end of the flow pipe assembly and inserted into the coating chamber to spray the potassium-based molten salt onto the glass bottle; and a transport rail that transports the glass bottle while passing through the coating chamber in a front-back direction.

[0016] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the melting furnace is characterized by including: an inner chamber that forms a space in which a potassium-based molten salt is accommodated and comes into contact with the potassium-based molten salt; an outer case that is formed to be spaced apart from the inner chamber at a predetermined distance to form a space between the inner chamber and the outer case; and a heater that is inserted into the space within the inner chamber and the outer case and heats the potassium-based molten salt.

[0017] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the melting furnace is characterized in that it includes an insulating material formed on the inside of the outer case outside the heater.

[0018] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the flow path assembly is characterized by including a flow path forming a flow path through which a potassium-based molten salt flows, and a band heater formed to surround the flow path and supplying heat to the potassium-based molten salt.

[0019] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the flow path is formed along the outer circumference and includes a cooling flow path through which cooling water flows, and a cooling fluid circulation port formed on both sides of the cooling flow path to communicate with the outside so as to allow circulation of the cooling water.

[0020] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the nozzle tube assembly is characterized by including a nozzle tube connected to the lower end of the flow tube assembly to form a passage through which a potassium-based molten salt is supplied into a coating chamber, a second band heater that supplies heat while surrounding the nozzle tube, a spray nozzle that sprays the potassium-based molten salt supplied through the nozzle tube into a glass bottle in the coating chamber, and a nozzle connecting member formed at an end of the nozzle tube on the coating chamber side to connect the nozzle tube and the spray nozzle.

[0021] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the nozzle connecting member is characterized in that it includes a molten salt supply path that forms a passage through which potassium-based molten salt supplied from a nozzle tube is supplied to a spray nozzle formed on the upper side.

[0022] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the injection nozzle is characterized by including an injection port for injecting potassium-based molten salt toward the glass bottle, a molten salt inlet path communicating with the molten salt supply path to form a passage for supplying potassium-based molten salt through the lower side of the injection port, an air supply module for supplying compressed air to the injection port, and a temperature sensor for measuring the temperature of the injection port.

[0023] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the plurality of the flow tube assemblies and the nozzle tube assemblies are formed at a predetermined interval along the forward and backward direction in which the glass bottle moves, and the heights of the nozzle tube assemblies are formed differently.

[0024] According to another embodiment of the present invention, in the glass bottle chemical strengthening device according to the present invention, the coating chamber is characterized by including an inlet and an outlet formed in the front and rear directions respectively so that the conveying rail can pass through, a nozzle mounting groove in which the nozzle tube assembly is inserted and mounted on both sides, a heating module formed within the outer wall of the coating chamber to supply heat, and an insulating member formed outside the heating module to prevent heat from escaping.

[0025] The present invention can obtain the following effects through the combination and use of the configuration described above and the following examples.

[0026] The present invention has the effect of reducing the cost of manufacturing glass bottles and improving productivity by enabling mass production by continuously performing a chemical process within the bottle manufacturing process to compensate for the decrease in strength due to the lightweight or ultra-light weight reduction of glass bottles, thereby performing a chemical strengthening treatment process quickly and at low cost.

[0027] The present invention has the effect of enabling the storage of a large amount of molten salt by forming a storage space for potassium-based molten salt separately in a sealed space on the upper side of a conveyor, preventing contamination of the molten salt, and facilitating management of the storage space.

[0028] The present invention has the effect of maintaining the temperature of a path through which molten salt is supplied, thereby resolving the problem of molten salt solidifying during the supply process.

[0029] The present invention has the effect of minimizing the volume occupied by the device and increasing the strengthening effect by allowing a chemical strengthening process for glass bottles to be performed in a closed space with a compact structure, thereby contributing to improving productivity and glass bottle quality.

[0030] Figure 1 is a perspective view of a glass bottle chemical strengthening device according to one embodiment of the present invention.

[0031] Figure 2 is a front view of Figure 1

[0032] Figure 3 is a side view of Figure 1.

[0033] Figure 4 is a diagram of the internal configuration of the melting furnace.

[0034] Figure 5 is a perspective view of the Euro pipe assembly.

[0035] Figure 6 is a perspective view and cross-sectional view of the Euro pipe.

[0036] Figure 7 is a perspective view and a cross-sectional view of the first band heater.

[0037] Figure 8 is a front view for explaining the installation status of the euro pipe assembly and nozzle pipe assembly.

[0038] Figure 9 is a perspective view of the nozzle tube assembly.

[0039] Figure 10 is a perspective view of the nozzle tube and the second band heater.

[0040] Figure 11 is a perspective view and cross-sectional view of the injection nozzle.

[0041] Figure 12 is a perspective view and cross-sectional view of a nozzle connecting member.

[0042] Figure 13 is a cross-sectional view illustrating the injection process of potassium-based molten salt.

[0043] Figure 14 is a perspective view of the coating chamber.

[0044] Figure 15 is a side cross-sectional view of the coating chamber.

[0045] *Explanation of symbols used in drawings

[0046] 1: Melting furnace 11: Inner chamber

[0047] 12: Outer case 13: Heater

[0048] 14: Insulation 2: Euro pipe assembly

[0049] 21: Euro pipe 211: Cooling pipe

[0050] 212: Cooling fluid circulation port 22: First band heater

[0051] 3: Nozzle tube assembly 31: Nozzle tube

[0052] 32: Second band heater 33: Injection nozzle

[0053] 331: Nozzle 332: Molten salt inlet

[0054] 333: Air supply module 334: Temperature sensor

[0055] 34: Nozzle connecting member 341: Molten salt supply path

[0056] 4: Coating chamber 41: Inlet

[0057] 42: Outlet 43: Nozzle mounting groove

[0058] 431: Penetration hole 44: Heating module

[0059] 45: Insulating member 5: Transport rail

[0060] G: Glass bottle

[0061] Hereinafter, preferred embodiments of a glass bottle chemical strengthening device according to the present invention will be described in detail with reference to the attached drawings. In the following description of the present invention, detailed descriptions of known functions or components will be omitted if they are deemed to unnecessarily obscure the gist of the present invention. Throughout the specification, when a part is said to "include" a certain component, unless specifically stated otherwise, this does not exclude other components but rather means that other components may be included.

[0062]

[0063] Hereinafter, a glass bottle chemical strengthening device according to one embodiment of the present invention will be described with reference to FIGS. 1 to 15. The glass bottle chemical strengthening device includes: a coating chamber (4) that forms a space in which a potassium-based molten salt is sprayed onto a glass bottle (G) transported by a transport rail (5); a melting furnace (1) that is separately formed on the upper side of the coating chamber (4) and seals and receives a potassium-based molten salt for chemically strengthening the glass bottle; a pair of flow pipe assemblies (2) that are connected to the bottom of the melting furnace (1) and supply the potassium-based molten salt in a molten state downward, and are formed on both sides of the coating chamber (4); a nozzle pipe assembly (3) that is connected to the lower end of the flow pipe assembly (2) and is inserted into the coating chamber (4) to spray the potassium-based molten salt onto the glass bottle; and a transport rail (5) that transports the glass bottle while passing through the coating chamber (4) in a front-back direction.

[0064] The present invention improves the strength of a glass bottle through a chemical strengthening process based on ion exchange, in which sodium (Na+) ions in the SiO2 network structure on the surface of the glass bottle are replaced with potassium (K+) ions in a potassium-based molten salt, and when potassium ions with an ionic radius of about 0.36 Å enter the surface of the glass bottle (exchange of alkali ions) and are cooled, a compressive stress is generated on the glass surface due to the volume difference, thereby strengthening the glass. Also called a low-temperature ion exchange method, it makes the surface of the glass bottle into a compressed state so that it can withstand tensile stress generated in a damaged situation.

[0065] However, in the past, a method of chemical strengthening by precipitation in a potassium-based molten salt was used, but there are problems in that the application of a chemical strengthening process using a precipitation method separate from the bottle-making process is not economical due to the limitations on the amount of processing per batch due to the large volume of glass bottles, the need for special grippers (jigs), and the long precipitation time (reaction time), which results in very low production efficiency.

[0066] Therefore, in order to apply chemical strengthening within the bottle manufacturing process, it must be possible to perform it continuously, such as weathering treatment immediately after molding, hot end coating, and cold end coating (CEC).

[0067] Accordingly, the glass bottle chemical strengthening device according to the present invention enables continuous chemical strengthening of glass bottles using a potassium salt during the glass bottle manufacturing process, and the glass bottle chemical strengthening device is installed between the surface treatment process after molding and the annealing process, and the glass bottles can be chemically strengthened continuously on a conveyor. The glass bottle immediately after the surface treatment can be chemically strengthened more efficiently in a short time by spray coating at about 500 to 650°C, and the ion exchange reaction is activated during the next process, the annealing process, so that the glass bottle can be strengthened through chemical strengthening in an inline process.

[0068] In particular, the above-described glass bottle chemical strengthening device supplies potassium-based molten salt by containing it in a separate, sealed space, thereby enabling storage of a large quantity of molten salt without spatial constraints, preventing contamination of the molten salt, and facilitating management of the storage space. In addition, by supplying the molten salt by lowering it from above, the volume occupied by the device can be minimized, the problem of the molten salt solidifying during the supply process can be reduced, and the heat supplied to maintain the molten state can be reduced.

[0069] The above melting furnace (1) is configured to accommodate a potassium-based molten salt for chemical strengthening of a glass bottle, and heats the potassium-based salt so that it can be maintained in a molten state. The melting furnace (1) contains potassium-based salts such as potassium nitrate (KNO3), potassium hydroxide phosphate (K2HPO4), potassium chloride (KCl), and potassium phosphate (K2PO4) containing potassium ions (K+). These potassium-based salts are in a solid state at room temperature, and when the potassium-based salt is heated above its melting point, the potassium-based salt is transformed into a potassium-based molten salt. The melting furnace (1) can maintain a temperature above its melting point so that the potassium-based molten salt can be maintained in a molten state, and can accommodate the potassium-based molten salt in a sealed state to prevent contamination from the outside. In addition, by supplying molten salt in a descending direction from the melting furnace (1), it is possible to prevent the molten salt from solidifying and save power for supplying the molten salt. To this end, the melting furnace (1) may include an inner chamber (11), an outer case (12), a heater (13), and an insulator (14), as illustrated in Fig. 4.

[0070] The above inner chamber (11) forms a space in which a potassium-based molten salt is received, and is configured to come into contact with the potassium-based molten salt, and can be formed along the side and bottom of the melting furnace (1) inside the melting furnace (1).

[0071] The above outer case (12) is formed at a certain interval outside the inner chamber (11) within the melting furnace (1), and a heater (13) and an insulating material (14) are formed between the inner chambers (11) so that the temperature within the inner chamber (11) can be maintained above a certain temperature.

[0072] The above heater (13) is configured to supply heat to the potassium-based molten salt within the inner chamber (11) to maintain a molten state, and its operation can be controlled according to the temperature within the inner chamber (11). The heater (13) is formed in the space within the inner chamber (11) and the outer case (12) to block contact with the potassium-based molten salt, thereby preventing breakdown, contamination, and damage.

[0073] The above insulation (14) is configured to block the heat supplied by the heater (13) from being emitted to the outside, and can be formed on the outside of the heater (13). Therefore, the insulation (14) can reduce the power consumed to maintain the molten state through efficient heat transfer into the internal chamber (11).

[0074] The above-mentioned flow pipe assembly (2) is configured to be connected from the bottom side of the melting furnace (1) downward to supply potassium-based molten salt to the nozzle pipe assembly (3) at the lower side, and a pair may be formed on both sides of the coating chamber (4) to spray potassium-based molten salt from both sides of the glass bottle (G). In addition, the flow pipe assembly (2) may be formed in multiple numbers spaced apart from each other at a certain interval in the front-back direction, and effective spraying of molten salt may be performed on the glass bottle (G) being transported in the front-back direction, and each flow pipe assembly (2) may be formed to have a different length so that the nozzle pipe assembly (3) connected to the flow pipe assembly (2) is formed at a different height, thereby evenly spraying of molten salt to the upper and lower points of the glass bottle (G). The above-mentioned pipe assembly (2) can be formed in a vertical direction, and can maintain a constant temperature while the potassium-based molten salt is supplied, thereby preventing the potassium-based molten salt from solidifying. To this end, the pipe assembly (2) can include a pipe (21) and a first band heater (22), as illustrated in FIGS. 5 to 7.

[0075] The above-described flow path (21) forms a flow path through which a potassium-based molten salt is supplied, and may be formed in a cylindrical shape connected to the bottom of the melting furnace (1), and a nozzle pipe (31) of the nozzle pipe assembly (3), which will be described later, may be connected to the lower end thereof. The flow path (21) may be formed in multiple pieces with different lengths and spaced apart at a predetermined interval in the front-rear direction. In addition, the flow path (21) is maintained at a predetermined temperature by the first band heater (22), and when the operation of the glass bottle chemical strengthening device is stopped, the flow path (21) may be cooled to a predetermined temperature to artificially solidify the molten salt, thereby preventing the molten salt in the melting furnace (1) from being discharged. To this end, the flow path (21) may include a cooling flow path (211) and a cooling fluid circulation port (212), as illustrated in FIG. 6.

[0076] The above cooling channel (211) is configured to form a passage through which cooling fluid flows, and is formed along the outer circumference of the central passage through which molten salt passes, so that cooling water or cooling air can flow.

[0077] The above cooling fluid circulation port (212) is configured to allow the cooling fluid to circulate through the cooling channel (211), and is formed to penetrate a pair of points of the cooling channel (211) so that the cooling fluid can be introduced and discharged into the cooling channel (211), and can be connected to a separate pipe through which the cooling fluid is circulated.

[0078] The first band heater (22) is configured to supply heat to the flow pipe (21), and maintains the inside of the flow pipe (21) at a temperature above a certain level so that the molten state of the potassium-based molten salt can be maintained. The first band heater (22) may be configured to wrap around the flow pipe (21) in a band shape as shown in Fig. 7 for efficient heat transfer, and may preferably be formed as a ceramic band heater.

[0079] The above nozzle tube assembly (3) is configured to spray potassium-based molten salt toward the glass bottle (G) in the coating chamber (4), and can be connected to the lower end of the flow tube assembly (2) to receive the potassium-based molten salt. The nozzle tube assemblies (3) are connected to each of a plurality of flow tube assemblies (2), and a plurality of nozzle tube assemblies (3) can be formed spaced apart from each other in the front-back direction on both sides of the coating chamber (4), and the nozzle tube assemblies (3) formed in the front-back direction can be formed to have different heights so that the molten salt can be evenly sprayed at various upper and lower points of the glass bottle (G). As illustrated in FIG. 8, the nozzle tube assembly (3) can spray molten salt into the coating chamber (4) while being supported by the coating chamber (4), and like the flow tube assembly (2), it can maintain a constant temperature to maintain a molten state of the molten salt. To this end, the nozzle tube assembly (3) may include a nozzle tube (31), a second band heater (32), a spray nozzle (33), and a nozzle connecting member (34) as shown in FIG. 9.

[0080] The above nozzle pipe (31) is configured to be connected to the lower end of the flow pipe (21) to form a passage through which potassium-based molten salt is supplied into the coating chamber (4), and may preferably be formed to be vertically connected to the flow pipe (21). The nozzle pipe (31) may be formed to extend to the outer surface of the coating chamber (4), and a nozzle connection member (34) may be formed at the end thereof to supply the molten salt to the injection nozzle (33). In addition, the nozzle pipe (31) is supplied with heat by the second band heater (32) to maintain a temperature higher than a certain temperature, thereby preventing the molten salt from solidifying.

[0081] The above second band heater (32) is configured to supply heat to the nozzle tube (31) to maintain the molten state of the molten salt, and can be formed to wrap around the nozzle tube (31) in a band shape like the first band heater (22), and preferably can be formed as a ceramic band heater.

[0082] The above-mentioned injection nozzle (33) is configured to spray potassium-based molten salt toward a glass bottle (G) moving along a transport rail (5) within a coating chamber (4), and may be formed to be fixed to the upper side of the nozzle connecting member (34). The injection nozzles (33) are formed on both sides of the transport rail (5) by being connected to the ends of each nozzle tube (31), and are formed to be spaced apart at different heights in the front-back direction so as to effectively spray molten salt onto the glass bottle (G) on the transport rail (5). In addition, the injection nozzle (33) may be formed to be inserted into the outer wall of the coating chamber (4), and can spray molten salt supplied from the nozzle tube (31) onto the glass bottle (G) by supplying compressed air, and can monitor the internal temperature to always maintain the molten salt above a certain temperature, thereby preventing solidification of the molten salt, thereby increasing the efficiency and effect of chemical strengthening, and eliminating clogging of the internal flow path. To this end, the injection nozzle (33) may include a nozzle (331), a molten salt inlet (332), an air supply module (333), and a temperature sensor (334) as shown in FIG. 11.

[0083] The above-mentioned injection port (331) is configured to form a passage through which a potassium-based molten salt is sprayed toward the glass bottle (G), and may be formed to open toward the inside of the coating chamber (4). The above-mentioned injection port (331) is formed so that the molten salt can be sprayed in the form of a spray.

[0084] The above molten salt inlet passage (332) is configured to form a passage through which potassium-based molten salt is supplied to the injection port (331), and is formed to communicate with the molten salt supply passage (341) of the nozzle connecting member (34), which will be described later. Accordingly, the molten salt inlet passage (332) can be connected to the injection port (331) by penetrating the bottom of the injection nozzle (33), and preferably, can be formed to be inclined toward the inside of the coating chamber (4) so ​​as to enable effective injection using compressed air.

[0085] The above air supply module (333) is configured to supply compressed air for spraying molten salt, and is formed on the outside of the spray port (331) so that the molten salt can be sprayed into the coating chamber (4).

[0086] The above temperature sensor (334) is configured to measure the temperature inside the injection nozzle (33), and can control the operation of the second band heater (32) or the heating module (44) described later so that the temperature inside the injection nozzle (33) is maintained above a certain temperature.

[0087] The above nozzle connecting member (34) is configured to connect the nozzle pipe (31) and the injection nozzle (33) so as to supply potassium-based molten salt, and forms a molten salt supply path (341) through which molten salt is supplied internally, as illustrated in FIG. 12. The nozzle connecting member (34) may be formed to be supported on the outer wall of the coating chamber (4), and the injection nozzle (33) is fixed to the upper portion thereof. Accordingly, the molten salt supply path (341) is formed by being bent in the vertical direction, and the molten salt passing through the nozzle pipe (31) can be transferred to the molten salt inlet path (332) of the upper injection nozzle (33). Therefore, through this structure, as illustrated in FIG. 13, the molten salt can be sprayed by supplying compressed air, and a compact structure can be achieved without a complicated device.

[0088] The above coating chamber (4) is configured to form a space in which molten salt is sprayed from the spray nozzle (33) onto a glass bottle (G) being transported in the forward and backward direction, and is sealed off from the outside except for the space in which the glass bottle (G) is inserted and removed. In addition, the coating chamber (4) can allow the nozzle tube assembly (3) to be inserted and seated, and maintain the coating chamber (4) at a certain temperature or higher. To this end, the coating chamber (4) may include an inlet (41), an outlet (42), a nozzle seating groove (43), a heating module (44), and an insulating member (45) as illustrated in FIGS. 14 and 15.

[0089] The above inlet (41) is configured to form a space through which the glass bottle (G) is introduced into the coating chamber (4), and a space through which the transport rail (5) and the glass bottle (G) can pass can be formed on the front side.

[0090] The above outlet (42) is configured to form a space through which the glass bottle (G) is discharged from the coating chamber (4), and a space through which the transport rail (5) and the glass bottle (G) can pass can be formed on the rear side.

[0091] The above nozzle mounting groove (43) is configured to be recessed into the outer wall of the coating chamber (4) to a certain depth so that the nozzle tube assembly (3) is inserted and mounted therein, and the nozzle connection member (34) can be mounted therein. In addition, the spray nozzle (33) is also recessed into the nozzle mounting groove (43) together with the nozzle connection member (34), and a through hole (431) is formed so that the molten salt sprayed from the spray nozzle (33) can be sprayed into the glass bottle (G) in the coating chamber (4) so ​​as to be in communication with the spray hole (331). The above nozzle mounting grooves (43) are formed at positions and in numbers corresponding to the nozzle tube assemblies (3) formed at certain intervals in the front-back direction.

[0092] The above heating module (44) is configured to be inserted into the outer wall of the coating chamber (4) to supply heat, and can maintain the inside of the coating chamber (4) at a set temperature or higher to ensure smooth spraying and coating of the molten salt.

[0093] The above insulating member (45) is configured to block the release of heat supplied by the heating module (44), thereby enabling efficient temperature maintenance of the coating chamber (4).

[0094] The above-mentioned transport rail (5) is configured to transport a glass bottle (G), and passes through the coating chamber (4) in the front-back direction, so that coating of the glass bottle (G) can be continuously performed within the coating chamber (4).

[0095]

[0096] In the above, the applicant has described various embodiments of the present invention, but such embodiments are only examples of implementing the technical idea of ​​the present invention, and any change or modification that implements the technical idea of ​​the present invention should be interpreted as falling within the scope of the present invention.

Claims

1. A coating chamber forming a space in which a potassium-based molten salt is sprayed onto a glass bottle transported by a transport rail; A melting furnace formed separately on the upper side of the coating chamber and sealed to receive a potassium-based molten salt for chemically strengthening the glass bottle; A pair of pipe assemblies formed on both sides of the coating chamber, connected to the bottom of the above melting furnace and supplying a potassium-based molten salt in a molten state downward; A nozzle tube assembly connected to the lower end of the above-mentioned euro tube assembly and inserted into the above-mentioned coating chamber to spray potassium-based molten salt into a glass bottle; A glass bottle chemical strengthening device characterized by including a transport rail for transporting a glass bottle while passing through the coating chamber in the forward and backward directions.

2. In the first paragraph, the melting furnace A glass bottle chemical strengthening device characterized by comprising: an inner chamber that forms a space in which a potassium-based molten salt is accommodated and comes into contact with the potassium-based molten salt; an outer case that is formed to be spaced apart from the inner chamber at a certain distance to form a space between the inner chamber and the outer case; and a heater that is inserted into the space within the inner chamber and the outer case and heats the potassium-based molten salt.

3. In the second paragraph, the melting furnace A glass bottle chemical strengthening device characterized by including an insulating material formed on the inner side of the outer case outside the heater.

4. In the first paragraph, the euro pipe assembly A glass bottle chemical strengthening device characterized by including a flow path forming a flow path through which a potassium-based molten salt flows, and a first band heater formed to surround the flow path and supplying heat to the potassium-based molten salt.

5. In paragraph 4, the euro pipe A glass bottle chemical strengthening device characterized by including a cooling channel formed along an outer circumference through which cooling water flows, and a cooling fluid circulation port formed on both sides of the cooling channel to communicate with the outside so as to allow circulation of the cooling water.

6. In the first paragraph, the nozzle tube assembly A glass bottle chemical strengthening device characterized by comprising: a nozzle tube connected to the lower end of the above-described pipe assembly to form a passage through which a potassium-based molten salt is supplied into the coating chamber; a second band heater supplying heat while surrounding the nozzle tube; a spray nozzle that sprays the potassium-based molten salt supplied through the nozzle tube into a glass bottle within the coating chamber; and a nozzle connecting member formed at an end of the nozzle tube on the coating chamber side to connect the nozzle tube and the spray nozzle.

7. In the 6th paragraph, the nozzle connecting member A glass bottle chemical strengthening device characterized by including a molten salt supply passage forming a passage through which potassium-based molten salt supplied from a nozzle tube is supplied to a spray nozzle formed on the upper side.

8. In the 7th paragraph, the injection nozzle A glass bottle chemical strengthening device comprising: a nozzle for spraying potassium-based molten salt toward a glass bottle; a molten salt inlet channel formed by communicating with the molten salt supply channel and supplying potassium-based molten salt through a lower portion of the nozzle; an air supply module for supplying compressed air to the nozzle; and a temperature sensor for measuring the temperature of the nozzle.

9. In the first paragraph, the euro pipe assembly and nozzle pipe assembly A glass bottle chemical strengthening device characterized in that a plurality of nozzle tube assemblies are formed at a set interval along the forward and backward direction in which the glass bottle moves, and each nozzle tube assembly is formed with a different height.

10. In the 6th paragraph, the coating chamber A glass bottle chemical strengthening device characterized by including an inlet and an outlet formed in the front and rear directions respectively so that the transfer rail can pass through, a nozzle mounting groove in which the nozzle tube assembly is inserted and mounted on both sides, a heating module formed within the outer wall of the coating chamber to supply heat, and an insulating member formed outside the heating module to prevent heat from being released.

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