Printer station and method of printing water bottle and pet bottle qr code using it

Abstract

The printer station according to the present invention and the method for printing QR codes on water bottles and PET bottles using the same may include a conveyor belt into which a PET bottle that has been manufactured is introduced, a cutting unit formed on the upper part of the conveyor belt to remove moisture and foreign substances from the lid of the PET bottle, a heating unit formed on the upper part of the conveyor belt to apply heat to the lid of the PET bottle, a plasma treatment unit formed next to the heating unit to improve the adhesion of ink using one of a method of weakening the surface tension of the lid and a method of surface modification, a printer unit that prints a recognition unit on the heated lid of the PET bottle, a UV curing lamp unit that emits a UV lamp to harden the recognition unit on the PET bottle that has passed the printer unit, and a reading unit formed with a camera that reads the recognition unit.

Description

Technology Field

[0001] The present invention relates to a printer station and a method for printing QR codes on water bottles and PET bottles using the same. Background Technology

[0002] Generally, bottled water is wrapped with labels containing product information such as logos, country of origin, manufacturing date, barcodes, and event details. These labels are made of PVC (polyvinyl chloride) Shrink and OPP (oriented polypropylene)-Pearl materials; since both types are produced in roll form, they offer good productivity when attaching labels to containers.

[0003] However, since it is made of a material different from PET (polyethylene terephthalate), which is the material of bottled water, it cannot be recycled together with PET bottles, and when incinerated, it generates dioxins, which are endocrine disruptors, becoming a major cause of serious environmental problems. In the case of OPP, the material is a composite material, and since it is also made of a material different from PET bottles, it cannot be recycled together with PET bottles, and there was a problem that it cannot be recycled because it is a composite material in which two materials with different characteristics are combined.

[0004] Generally, PET bottles come in various shapes and are manufactured in distinctive designs (such as Dolhareubang or animation characters) for product promotion. Although label-free PET bottles are being produced to prevent environmental issues, there are difficulties in creating labels that can be applied to various shapes. Furthermore, while label-free PET bottles are being released recently, there is a growing need for technology to display information without a label, as there is no space to include details such as event participation information, manufacturing date, and manufacturer.

[0005] In addition, while water bottles featuring embossed product logos are being released, there were problems involving massive costs and time consumption because it was difficult to incorporate information such as barcodes, and the manufacturing process required reconfiguring molds and conveyors. The problem to be solved

[0006] Based on the technical background described above, the present invention aims to provide a printer station capable of producing label-free PET bottles through a barcode or QR code printed on a lid, being eco-friendly, having excellent print quality, and enabling rapid printing, as well as a method for printing QR codes on water bottles and PET bottles using the same. means of solving the problem

[0007] A printer station according to an embodiment of the present invention may include a conveyor belt into which a finished PET bottle is introduced, a cutting unit formed on the upper part of the conveyor belt for removing moisture and foreign substances from the lid of the PET bottle, a heating unit formed on the upper part of the conveyor belt for applying heat to the lid of the PET bottle, a plasma treatment unit formed next to the heating unit for improving the adhesion of ink using one of a method of weakening the surface tension of the lid and a method of surface modification, a printer unit for printing a recognition unit on the heated lid of the PET bottle, a UV curing lamp unit for hardening the recognition unit by emitting a UV lamp to the PET bottle that has passed the printer unit, and a reading unit formed with a camera for reading the recognition unit.

[0008] The above recognition unit may be one of price information, a link to a product site, a purchase link, a barcode containing a YouTube link, or a food QR code.

[0009] The above printer unit may include a carbon brush for removing static electricity.

[0010] The heating unit may include a heating unit formed toward the lid, which is one of a NIR lamp, an IR lamp, a high-power heater, and a gas jet; an air injection unit formed at an angle inside the heating unit, which penetrates the heating unit and sprays wind at an angle of 50 degrees or more toward the lid; and a convex lens attached to the heated surface of the heating unit and protruding toward the lid to increase the heat transfer efficiency of the heating unit.

[0011] The above air injection unit may include air injection holes positioned with a step difference from each other and a housing formed around the air injection holes to guide the direction of the wind.

[0012] The method for printing QR codes on water bottles and PET bottles using the printer station of the present invention may include an inflow step in which the PET bottle, having been manufactured, is inserted into a side belt and introduced; a heating step in which heat is applied to the lid using any one of an NIR lamp, an IR lamp, a high-power heater, and a gas jet; an electrostatic removal step in which static electricity on the lid is removed by the carbon brush of the printer unit; a printing step in which the recognition unit is printed on the lid by the printer unit; a curing step in which the printed recognition unit is cured by the UV curing lamp unit; a reading step in which the recognition unit is read by the reading unit to select defects; and a disposal step in which a sorting device that discharges the defects to the outside of the conveyor discharges the defects.

[0013] It may further include a recognition step in which the width of the PET bottle is received via the side belt and the type of the PET bottle is recognized by the integrated software, and an ERP production step in which printing information corresponding to the type of the PET bottle is transmitted and printed on the cap. Effects of the invention

[0014] The printer station according to an embodiment of the present invention and the method for printing QR codes on water bottles and PET bottles using the same can produce label-free PET bottles through a barcode or QR code printed on the lid, and can be eco-friendly, have excellent print quality, and enable rapid printing. Brief explanation of the drawing

[0015] FIG. 1 is a process flow diagram of a printer station according to one embodiment of the present invention and a method for printing water bottles using the same. FIG. 2 is a PET bottle with a recognition part printed thereon according to one embodiment of the present invention. FIG. 3 is a perspective view of a heating unit according to one embodiment of the present invention. FIG. 4 is a perspective view of a heating unit according to one embodiment of the present invention. Figure 5 is a cross-sectional view taken from the AA' direction of Figure 4. Specific details for implementing the invention

[0016] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. In the drawings, parts unrelated to the explanation have been omitted to clearly explain the present invention, and the same reference numerals have been used throughout the specification for identical or similar components.

[0017] In this specification, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Furthermore, when a part such as a layer, film, region, or plate is described as being "above" another part, this includes not only the case where it is "immediately above" another part, but also the case where there is another part in between. Conversely, when a part such as a layer, film, region, or plate is described as being "below" another part, this includes not only the case where it is "immediately below" another part, but also the case where there is another part in between.

[0018] FIG. 1 is a process flow diagram of a printer station according to one embodiment of the present invention and a method for printing a water bottle using the same, FIG. 2 is a PET bottle with a recognition unit printed thereon according to one embodiment of the present invention.

[0019] Referring to FIGS. 1 and 2, the printer station (1) may include a conveyor belt (10), a heating unit (20), a printer unit (30), a UV curing lamp unit (40), and a reading unit (50).

[0020] The conveyor belt (10) can receive PET bottles (2) that have been completed during production. For example, the conveyor belt (10) can receive PET bottles (2) that have been completed during the production process. Through this, the printing process of the present invention can be carried out smoothly by adding or extending the conveyor belt (10) to the PET bottles (2) moving on the conveyor belt, and no separate additional installation is required, so the work is shortened and costs and time can be saved.

[0021] The conveyor belt (10) may include a cutting section (12) and a plasma treatment section (13).

[0022] The cutting section (12) is formed on the upper part of the conveyor belt (10) to remove moisture and foreign substances from the PET bottle (2) cap (3). For example, the cutting section (12) is formed on the upper part of the conveyor belt (10) so that air is released in strong, short bursts like a blade to remove moisture and foreign substances from the cap (3). Through this, dust, moisture, floating particles, etc., on the cap (3) which serves as the base before printing are removed, so that the printing quality can be superior.

[0023] The plasma treatment unit (13) is formed next to the heating unit (20) and can improve the adhesion of the ink by using either a method of weakening the surface tension of the lid (3) or a method of surface modification. For example, the plasma treatment unit (13) can expose the lid (3) to plasma in a method of surface modification. Through this, the adhesion of the ink printed on the lid (3) can be further improved, so that the ink can maintain its original form for a long time without damage from the factory, transportation, delivery, and until it reaches the buyer.

[0024] The conveyor belt (10) may include a motor and a servo motor.

[0025] The servo motor can be connected to an encoder. For example, an encoder (not shown) can be connected to the servo motor to measure the speed of the servo motor. The encoder is a mechanical motion sensor that generates a digital signal, and in the present invention, it can be measured as a pulse.

[0026] The servo motor can be connected to the side belt (11) to transmit rotational motion. That is, the encoder can measure the speed of the servo motor.

[0027] The conveyor belt (10) may include a side belt (11).

[0028] The side belt (11) can hold a part of the PET bottle (2) and move at the same speed as the conveyor belt (10). For example, the side belt (11) can come into contact with the neck and bottom part of the PET bottle (2) to secure the PET bottle (2) more firmly and move at the same speed as the conveyor belt (10). Through this, when printing the PET bottle (2), the PET bottle (2) moves in a more secure and fixed state without shaking, so the printing position becomes accurate and the speed of the work can be increased.

[0029] The heating unit (20) is formed on the upper part of the conveyor belt (10) and can apply heat to the lid (3) of the PET bottle (2). For example, the heating unit (20) is formed on the upper part of the conveyor belt (10) through which the PET bottle (2) passes and can apply heat to the lid (3) of the PET bottle (2). By doing so, the printing quality of the recognition unit (31) can be improved and contamination during printing can be prevented by accurately heating only the lid (3).

[0030] The heating unit (20) may use any one of an NIR lamp, an IR lamp, a high-output heater, and a gas jet. For example, the heating unit (20) may be 400 to 450 A NIR lamp can be used. This allows heat to be applied accurately only to the lid (3) area without affecting the contents.

[0031] The heating unit (20) may include a plasma device.

[0032] A plasma device is formed at the end of the PET bottle (2) in the direction of travel of the heating part (20) and can modify the surface of the lid (3).

[0033] The printer unit (30) can print a recognition unit (31) on the lid (3) of a heated PET bottle (2). For example, the printer unit (30) can be installed on the top of a water bottle production conveyor belt to print a recognition unit (31) on the lid (3) of a heated PET bottle (2).

[0034] The printer unit (30) can output two or more codes. For example, the printer unit (30) can print a primary code and a secondary code of a QR code. Through this, the printing speed on the lid (3) can be made faster, and the resolution problem that occurs when printing sequentially can be resolved. More specifically, a resolution of 300dpi is appropriate for printing a code on a PET bottle (2) moving at 100m / min, but there is a problem that it is not possible to print at an appropriate resolution in a short time with a single printing operation. However, the present invention can reach an appropriate 300dpi with two printing operations, such as 100dpi and 200dpi or 150dpi and 150dpi. In addition, the printing resolution possible for a PET bottle (2) moving at a speed of 50m / min is 600dpi, which can be reached by printing twice at 300dpi. Through this, the printed recognition part (31) can be made clearer and can respond flexibly even if the work speed increases.

[0035] As another example, in the case where QR codes and barcodes need to be printed simultaneously as in Fig. 2, the printer unit (30) is equipped with four output devices so that QR codes and barcodes can be clearly printed through two output processes each.

[0036] The UV curing lamp unit (40) can emit a UV lamp to the PET bottle (2) that has passed through the printer unit (30) to harden the recognition unit (31).

[0037] The UV curing lamp unit (40) can adjust the amount of light according to the speed of the conveyor belt (10). For example, 20 UV lamps are installed in the UV curing lamp unit (40), and 10 can be operated when the speed is relatively low, and all 20 can be operated when the speed is relatively high. Through this, it is possible to respond flexibly according to the speed and save costs by not using excessive power.

[0038] The reading unit (50) may be formed with a camera (51) that reads the recognition unit (31). For example, the reading unit (50) may be formed with a camera (51) that reads the recognition unit (31) and has an average response speed of 100 m / s.

[0039] The reading unit (50) may include a control unit (52).

[0040] The control unit (52) is connected to the reading unit (50) and can review information about the recognition unit (31) recognized by the camera (51) and send a signal to the reading unit (50). For example, the control unit (52) can examine the information of the recognition unit (31) captured by the camera (51) and, if it is defective, send a signal to knock the PET bottle (2) out of the conveyor belt (10).

[0041] The recognition unit (31) may be one of a barcode containing price information, a link to a product site, a purchase link, a YouTube link, or a food QR code. For example, the recognition unit (31) may be a barcode containing information about the PET bottle product, price, expiration date, purchase link, a YouTube link containing an advertisement, ingredients, or a QR code containing information about the food.

[0042] The printer unit (30) may include a carbon brush (32).

[0043] The carbon brush (32) can remove static electricity. For example, the carbon brush (32) is formed at the point where the direction of travel of the PET bottle (2) of the printer unit (30) begins, and can remove static electricity from the lid (3).

[0044] The heating unit (20) can be connected to the control unit (52). Through this, the heating temperature and air discharge amount can be adjusted according to the pulse (speed) of the encoder.

[0045] The heating unit (20) can control the heating temperature and the amount of air discharged from the air injection unit (22) according to the measurement value of the encoder.

[0047] The following examples are provided to aid in understanding the present invention. However, the following examples are provided merely to facilitate a better understanding of the invention, and the scope of the invention is not limited by these examples.

[0049] Example: Temperature and air discharge volume according to pulse (speed)

[0050] Table 1 is a table showing the level, heating temperature, and air level according to the pulse measured by the encoder.

[0051]

[0052] Referring to Table 1, the pulse can be classified into levels 1 to 10 depending on the change in pulse. As the level increases, the heating temperature may decrease proportionally and the air may decrease inversely. This is represented by Equation 1, where x is the pulse, y is the heating temperature level, and z is the air level.

[0053]

[0054] Through this, the printer station of the present invention not only prevents environmental pollution by reducing the use of film, but also simplifies the installation process by simply installing the printer station at the end of the manufacturing process of filling a PET bottle with contents and sealing it with a lid to print a barcode, and can be applied to any factory. Furthermore, even if the shape of the PET bottle varies, the PET bottle (2) can be supported by the side belt (11), so it can be applied to PET bottles of various shapes. It can also print clearly and distinctly even at speeds of 100 m / min or more. Additionally, because the recognition unit (31) is hardened with a UV lamp rather than using liquid ink, it can prevent situations where the recognition unit (31) becomes blurry or damaged and cannot be recognized during delivery, display, sale, customer purchase, or customer use.

[0055] FIG. 3 is a perspective view of a heating unit according to one embodiment of the present invention.

[0056] Referring to FIG. 3, the heating unit (20) may include a heating unit (21) and a convex lens (23).

[0057] The heating section (21) can be formed toward the lid (3). For example, the heating section (21) can be formed at the bottom of the heating section (20) and protrude toward the lid (3), so that a plurality of heating sections (21) are arranged diagonally side by side. Through this, the recognition section (31) printed by heating the lid (3) becomes clear, and since heat is applied only to the lid (3) without applying heat to the PET bottle (2), it is possible to prevent the contents contained in the PET bottle (2) from being damaged or deteriorated.

[0058] The convex lens (23) is attached to the heating surface of the heating unit (21) and protrudes toward the lid (3) to increase the heat transfer efficiency of the heating unit (21). For example, if the convex lens (23) is installed on four rails, four convex lenses (23) can be arranged side by side on one heating unit (21) arranged diagonally as shown in the drawing and protrude convexly toward the lid. Through this, high efficiency can be achieved even with low power, thus saving energy, and as the PET bottle (2) passes through multiple convex lenses (23), heat is transferred, so it is heated more reliably, and the heating efficiency can be increased.

[0059] FIG. 4 is a perspective view of a heating unit according to one embodiment of the present invention.

[0060] Referring to FIG. 4, the heating unit (21) is formed inside the heating unit (20) and extends along the rail direction through which the lid (3) passes, and can be positioned close to the direction through which the lid (3) passes. For example, the heating unit (21) can be arranged in a cylindrical shape inside the heating unit (20) and extended in a direction corresponding to the direction through which the PET bottle (2) passes, and can be positioned close to the direction through which the lid (3) passes. Through this, the heat does not reach the part containing the contents of the PET bottle (2), but only reaches the lid (3), making heating possible. This prevents the contents from changing or being heated by the heat, and allows only the lid (3) to be heated accurately.

[0061] The heating unit (20) may include an air injection unit (22) and a convex lens (23).

[0062] The air injection unit (22) is formed at an angle inside the heating unit (20) and can penetrate the heating unit (21) and blow air toward the lid (3). For example, the air injection unit (22) may be formed in multiple numbers inside the heating unit (20) and can penetrate the heating unit (21) and blow air toward the lid (3).

[0063] The air injection unit (22) can inject air at a temperature of 50 degrees or higher. For example, the air injection unit (22) can inject air at a temperature of 60 degrees.

[0064] The air injection part (22) may include an air injection hole (22a).

[0065] The air injection holes (22a) may be positioned with a step difference from each other. For example, multiple air injection holes (22a) may be arranged side by side along the length direction of the heating part (21), and each row of air injection holes (22a) may be formed with a step difference. Through this, when the lid (3) passes the heating part (20), foreign matter can be blown away through the air of the air injection holes (22a), and the heated part can be cooled so that it does not reach a temperature above the appropriate temperature.

[0066] The air injection hole (22a) can be formed to be smaller than the diameter of the lid (3). For example, if the diameter of the lid (3) is 30 mm, the air injection hole (22a) can be formed to be 20 mm. Through this, the air injection hole (22a) can inject air only into the area of ​​the lid (3), allowing for more accurate injection into the area.

[0067] The convex lens (23) can be formed to correspond to the longitudinal direction of the heating section (21). For example, the convex lens (23) may be formed convexly on one surface of the heating section (20) where the heating section (21) is formed, corresponding to the longitudinal direction of the heating section (21), and may have a cross-section that is semicircular. Through this, high efficiency can be achieved even with low power, energy can be saved, and heat transfer efficiency can be further increased.

[0068] Figure 5 is a cross-sectional view taken from the AA' direction of Figure 4.

[0069] Referring to FIG. 5, the air injection unit (22) is formed at an angle inside the heating unit (20) and can blow air toward the lid (3) by penetrating the heating unit (21). For example, the air injection unit (22) is formed at an angle inside the heating unit (20) and penetrates the heating unit (21) and the convex lens (23) to pass air and deliver air to the lid (3). Through this, when the lid (3) passes the heating unit (20), foreign matter is blown away by the air in the air injection hole (22a), and the heated area can be cooled so that it does not reach a temperature above the appropriate temperature. In addition, since it is formed at an angle and tilted, it can blow air in the opposite direction to the direction the lid (3) passes, so even if the air speed is low, the air can be strongly blown toward the lid (3) due to the angle.

[0070] The air injection unit (22) may include a housing (22b).

[0071] The housing (22b) can be formed around the air injection hole (22a) to guide the direction of the wind. For example, the housing (22b) can guide the direction of the wind in a form where the edge portion of the cross-section of the air injection hole (22a) protrudes. More specifically, if the air injection hole (22a) is circular, the housing (22b) can protrude along the circular edge.

[0072] The housing (22b) can protrude at an angle relative to the air injection part (22). For example, if the housing (22b) is formed with the air injection part (22) bent at 10 degrees relative to the vertical direction, the housing (22b) can be formed with an angle of 15 degrees relative to the vertical direction, thus having an angle of 5 degrees greater relative to the air injection part (22). Through this, the air blows more in the reverse direction toward the lid (3), so that the air is evenly sprayed over the entire surface area of ​​the lid (3) rather than blowing vertically toward the lid (3) and reaching only a part of the lid (3). In addition, even when the PET bottle (2) moves quickly, the air can reliably reach the lid (3) without missing any area.

[0073] The heating unit (20) may include an air supply unit (24).

[0074] The air supply unit (24) is connected to the air injection unit (22) and can inject air into the air injection unit (22). For example, the air supply unit (24) can inject air into the air injection unit (22) by adjusting the speed of the air according to a signal from the control unit (52).

[0075] FIG. 6 is a flowchart of a method for printing on a water bottle according to one embodiment of the present invention.

[0076] Referring to FIG. 6, the water bottle printing method may include an inflow step, a heating step, an electrostatic removal step, a printing step, a curing step, and a reading step.

[0077] In the inflow stage, the finished PET bottle (2) can be inserted into the side belt (11) and fed in.

[0078] In the heating step (S200), heat can be applied to the lid (3) from the heating unit (20) using any one of an NIR lamp, an IR lamp, a high-power heater, and a gas jet.

[0079] The static electricity removal step can remove static electricity from the lid (3) using the carbon brush (32) of the printer part (30).

[0080] The printing step can print the recognition part (31) on the lid (3) using the printer part (30).

[0081] The curing step can cure the printed recognition part (31) with a UV curing lamp part (40).

[0082] The reading step can select defects by reading the recognition unit (31) in the reading unit (50).

[0083] The water bottle printing method may further include a recognition stage and an ERP production stage.

[0084] In the recognition stage, the width of the PET bottle (2) is received via the side belt (11), and the control unit (52) can recognize the type of PET bottle (2). For example, the recognition stage can recognize the width of the PET bottle (2) via the side belt (11) and compare it with the type of PET bottle (2) registered in the control unit (52) to recognize the appropriate PET bottle (2) information (QR information, product information). As another example, the side belt (11) can be formed at various heights to measure the height of the PET bottle (2), and the width and height information of the PET bottle (2) can be sent to the control unit (52) to recognize more accurate information.

[0085] The ERP production stage can print on the lid (3) by transmitting printing information suitable for the type of PET bottle (2). For example, the ERP production stage can print on the lid (3) by adjusting the width of the side belt (11) to suit the type of PET bottle (2), fitting the PET bottle (2) properly, and securely fixing it, and then printing on the lid (3) by transmitting printing information suitable for the type. Through this, accidents in which the PET bottle (2) comes off the conveyor belt (10) can be prevented.

[0086] The ERP production stage can be manually adjusted by the user in case of emergency. For example, the ERP production stage can be partially adjusted by logging into the control unit (52) to disable the automatic adjustment function of the side belt (11). Through this, flexible response is possible regardless of the type of PET bottle (2) supplied.

[0087] Although embodiments of the present invention have been described above, the spirit of the present invention is not limited to the embodiments presented in this specification. Those skilled in the art who understand the spirit of the present invention may easily propose other embodiments within the scope of the same spirit by adding, changing, deleting, or adding components, and such embodiments shall also be considered to fall within the scope of the spirit of the present invention. Explanation of the symbols

[0090] 1: Printer station 2: Plastic bottle, water bottle 3: Lid 10: Conveyor belt 11: Side belt 12: Cutting section 13: Plasma treatment section 20: Heating section 21: Heating section 22: Air injection part 22a: Air injection hole 22b: Housing 23: Convex lens 24: Air supply unit 30: Printer unit 31: Recognition unit 32: Carbon brush 40: UV curing lamp section 50: Reader 51: Camera 52: Control unit

Claims

Claim 1 A conveyor belt (10) into which a finished PET bottle (2) is introduced; a cutting section (12) formed on the upper part of the conveyor belt (10) to remove moisture and foreign substances from the lid (3) of the PET bottle (2); a heating section (20) formed on the upper part of the conveyor belt (10) to apply heat to the lid (3) of the PET bottle (2); a plasma treatment section (13) formed next to the heating section (20) to improve the adhesion of ink using one of the methods of weakening the surface tension of the lid (3) and surface modification; a printer section (30) to print a recognition section (31) on the heated lid (3) of the PET bottle (2); and a UV curing lamp section (40) to emit a UV lamp to harden the recognition section (31) on the PET bottle (2) that has passed through the printer section (30). The device includes a reading unit (50) formed with a camera that reads the recognition unit (31), and the heating unit (20) is connected to the control unit (52) of the reading unit (50), controls the heating temperature and air discharge amount according to the pulse (speed) of the encoder, is formed toward the lid (3), and is one of a heating unit (21) of an NIR lamp, an IR lamp, a high-power heater, and a gas jet; an air injection unit (22) formed at an angle inside the heating unit (20) to penetrate the heating unit (21) and spray wind at an angle of 50 degrees or more toward the lid; and a convex lens (23) attached to the heated surface of the heating unit (21) and protruding toward the lid (3) to increase the heat transfer efficiency of the heating unit (21). It includes an air supply unit (24) connected to the air injection unit (22) and injecting air into the air injection unit (22) by adjusting the speed of the air according to a signal from the control unit (52), and the convex lens (23) is formed convexly on one surface of the heating unit (20) in which the heating unit (21) is formed, corresponding to the longitudinal direction of the heating unit (21), and has a cross-section formed of a semicircle, and the air injection unit (22) comprises a plurality of air injection holes (22a) positioned with a step difference from each other;and includes a housing (22b) formed around the air injection hole (22a) to guide the direction of the wind, wherein the air injection hole (22a) is formed smaller than the diameter of the lid (3) so that air is injected only into the surface area of ​​the lid (3) to inject into a more accurate area, and the housing (22b) guides the direction of the wind in a form in which the edge portion of the cross-section of the air injection hole (22a) protrudes, and if the air injection part (22) is formed at a 10-degree angle relative to the vertical direction, the housing (22b) is formed at a 15-degree angle relative to the vertical direction, having an angle 5 degrees greater than that of the air injection part (22), and the temperature and air discharge amount according to the pulse are given by the mathematical formula; A printer station defined by, where x is the pulse, y is the heating temperature step, and z is the air step. Claim 2 In claim 1, the recognition unit (31) is a printer station containing price information, a link to a product site, a purchase link, a YouTube link, a barcode, or a food QR code. Claim 3 In claim 1, the printer unit (30) is a printer station including a carbon brush (32) that removes static electricity. Claim 4 delete Claim 5 delete Claim 6 An inflow step in which a completed PET bottle (2) is inserted into a side belt (11) and introduced; a heating step in which heat is applied to the lid (3) using any one of an NIR lamp, an IR lamp, a high-power heater, and a gas jet; an electrostatic removal step in which static electricity is removed from the lid (3) using a carbon brush (32) of a printer unit (30); a printing step in which a recognition unit (31) is printed on the lid (3) using the printer unit (30); a curing step in which the printed recognition unit (31) is cured using a UV curing lamp unit (40); and a reading step in which the recognition unit (31) is read by a reading unit (50) to identify defects. The sorting device that discharges the defects to the outside of the conveyor includes a disposal step for discharging the defects, and the heating step applies heat to the lid (3) through a heating unit (20), the heating unit (20) is connected to the control unit (52) of the reading unit (50) and controls the heating temperature and air discharge amount according to the pulse (speed) of the encoder, and includes a heating unit (21) formed toward the lid (3); an air injection unit (22) formed at an angle inside the heating unit (20) that penetrates the heating unit (21) and sprays wind at an angle of 50 degrees or more toward the lid; and a convex lens (23) attached to the heated surface of the heating unit (21) and protruding toward the lid (3) to increase the heat transfer efficiency of the heating unit (21). It includes an air supply unit (24) connected to the air injection unit (22) and injecting air into the air injection unit (22) by adjusting the speed of the air according to a signal from the control unit (52), and the convex lens (23) is formed convexly on one surface of the heating unit (20) in which the heating unit (21) is formed, corresponding to the longitudinal direction of the heating unit (21), and has a cross-section formed of a semicircle, and the air injection unit (22) comprises a plurality of air injection holes (22a) positioned with a step difference from each other;and includes a housing (22b) formed around the air injection hole (22a) to guide the direction of the wind, wherein the air injection hole (22a) is formed smaller than the diameter of the lid (3) so that air is injected only into the surface area of ​​the lid (3) to inject into a more accurate area, and the housing (22b) guides the direction of the wind in a form in which the edge portion of the cross-section of the air injection hole (22a) protrudes, and if the air injection part (22) is formed at a 10-degree angle relative to the vertical direction, the housing (22b) is formed at a 15-degree angle relative to the vertical direction, having an angle 5 degrees greater than that of the air injection part (22), and the temperature and air discharge amount according to the pulse are given by the mathematical formula; A method for printing QR codes on water bottles and PET bottles using a printer station defined by, where x is a pulse, y is a heating temperature step, and z is an air step. Claim 7 A method for printing QR codes on water bottles and PET bottles using a printer station, further comprising: a recognition step in which the width of the PET bottle is received via the side belt and the control unit recognizes the type of the PET bottle; and an ERP production step in which printing information corresponding to the type of the PET bottle is transmitted and printed on the cap.

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