Inkjet head nozzle inspection film supply device

Abstract

The present invention relates to an inkjet head nozzle inspection device capable of quickly inspecting the ejection state of ink droplets ejected from a head nozzle of an inkjet device installed in a glove box. To this end, the inkjet head nozzle inspection device of the present invention includes a cartridge fastening part that is installed in a glove box in which inkjet equipment is built, and a cartridge part that is equipped with a test bed for inspecting the ink droplet ejection state of the head nozzle of the inkjet equipment, and has a replaceable inspection film supply roll and an inspection film recovery roll attached to the top of the test bed so as to supply an inspection film, and is configured to be detachable from the cartridge fastening part.

Description

[Technical field]

[0001] The present invention relates to an inkjet head nozzle inspection device, and more particularly, to an inkjet head nozzle inspection device capable of quickly and easily replacing inspection films for inspecting the ejection state of ink droplets ejected from head nozzles of inkjet equipment installed in a glove box. [Background technology]

[0002] Recently, as inkjet technology has been developed, it is being used in various fields such as display semiconductor fields.

[0003] For example, inkjet technology is used in processes such as printing ink or precise coating on very small areas of LCD, color filters, OLED RGB, OLED TFE (Thin Film Encapsulation), etc., and color filters or OLED RGB are applied to express each color by accurately depositing a fixed amount of ink droplets in a bank of tens or a few microns in size, and the physical error in such cases should be less than 1%.

[0004] As described above, in order to perform a precise process using the inkjet technology, it is necessary to maintain a state in which ink droplets are ejected in a precise direction from the head nozzles of the inkjet equipment.

[0005] Therefore, the ink droplet ejection status of the head nozzles should be periodically inspected to prevent problems such as ink droplets being ejected in an inaccurate diagonal direction from the head nozzles or not being ejected at all. If a problem occurs, maintenance should be performed such as stopping use of the defective nozzles and making corrections using other nozzles.

[0006] As a method for periodically inspecting the ink droplet ejection state of the head nozzle, there is a method for observing the ink droplet ejection state, speed, etc., using a vision device at the time when the ink droplet is ejected, and determining whether the ink droplet ejection state of the head nozzle is normal.

[0007] However, the above-mentioned method has a drawback in that it takes a lot of time because ink droplets discharged from a large number of nozzles must be photographed and judged by a vision device one by one. To overcome this drawback, a new technology has been developed.

[0008] Patent Document 1 discloses a "substrate processing apparatus, discharge amount measuring unit, and substrate processing method" as a technique for quickly inspecting the discharge state of ink droplets discharged from a large number of nozzles provided in an inkjet head.

[0009] However, in the above-mentioned "substrate processing apparatus, discharge amount measurement unit, and substrate processing method," the substrate processing apparatus is installed in a glove box that is sealed with a specific gas atmosphere, and the discharge amount measurement unit is also installed in the glove box, so there is a problem in that the work of replacing the supply roller and recovery roller with new supply roller and recovery roller must be performed inside the glove box, which is very cumbersome.

[0010] Therefore, there is a demand for a technique for quickly replacing the supply roller and the recovery roller and quickly inspecting the ejection state of ink droplets. [Prior art documents] [Patent documents]

[0011] [Patent Document 1] Korean Patent Publication No. 10-2016-0083420 (July 12, 2016) Summary of the Invention [Problem to be solved by the invention]

[0012] An object of the present invention to solve the problems of the conventional art is to provide an inkjet head nozzle inspection device that can quickly and easily replace inspection films for inspecting the ejection state of ink droplets ejected from the head nozzles of an inkjet device installed in a glove box, thereby shortening the inspection time. [Means for solving the problem]

[0013] the inkjet head nozzle inspection device of the present invention for solving the above technical problem includes: a fixed base installed in a maintenance area in a glove box for performing maintenance on a head nozzle of an inkjet equipment; a cartridge fastening part including a square box-shaped housing fixed to an upper part of one side of the fixed base and a supply manifold attached to an upper part of the housing; a cover box formed in a square box shape with one side open, with a lower surface seated on an upper surface of the fixed base and an open part seated on the housing so as to be fastened to the cartridge fastening part; an outer plate fastened to the other side of the cover box by a plurality of connecting rods; a connection manifold fastened across an upper part of the cover box and an upper part of the outer plate; a test bed assembled on an upper part of the connection manifold;

[0014] Preferably, the supply manifold is configured to include at least one positive pressure supply hole connected to a positive pressure port provided with positive pressure, and at least one negative pressure supply hole connected to a negative pressure port provided with negative pressure, and the connection manifold is configured to include at least one positive pressure connection hole connected to the positive pressure supply hole to receive the positive pressure of the positive pressure supply hole, a positive pressure discharge hole providing the positive pressure of the positive pressure connection hole to the test bed, at least one negative pressure connection hole connected to the negative pressure supply hole to receive the negative pressure of the negative pressure supply hole, and a negative pressure discharge hole providing the negative pressure of the negative pressure connection hole to the test bed.

[0015] Preferably, a rotary drive unit and a drive gear exposed to the outside of the housing while rotating by the rotational force of the rotary drive unit are provided inside the housing, and the winding roller is exposed to the open portion of the cover box and configured to be axially connected to a driven gear that meshes with the drive gear.

[0016] Preferably, the cartridge portion is configured to include a driven friction roller that is arranged parallel to the winding roller between the cover box and the outer plate and is axially connected to a transmission gear exposed in the open portion of the cover box, and the cartridge fastening portion is configured to include a measurement gear that meshes with the transmission gear, a rotating disk that is axially connected to the measurement gear, and a photosensor that detects the amount of rotation of the rotating disk.

[0017] Preferably, a guide rail is formed on an upper surface of the fixed base, and a guider is provided on lower surfaces of the cover box and the outer plate, the guider being guided by the guide rail.

[0018] Preferably, a guide protrusion for guiding a mounting position of the cartridge part relative to the cartridge fastening part and a guide bushing into which the guide protrusion is inserted are provided on opposing surfaces of the housing and the cover box, respectively.

[0019] Preferably, the unwinding roller is configured to be frictionally supported by a friction means including a pulley axially connected to the unwinding roller and exposed to the open portion of the cover box, a friction wire wound around the pulley to generate a predetermined friction force, and a fixing bracket for fixing both ends of the friction wire.

[0020] Preferably, the unwinding roller is composed of a first unwinding body rotatably supported on the cover box and a second unwinding body rotatably supported on the outer plate, and the winding roller is composed of a first winding body rotatably supported on the cover box and a second winding body rotatably supported on the outer plate.

[0021] Preferably, the multiple connecting rods are configured to be removable from the cover box and the outer plate, and the outer plate is configured to be removed from the cover box when the multiple connecting rods are removed from the cover box and the outer plate.

[0022] Preferably, the unwinding roller and the take-up roller are formed with a rotation prevention protrusion into which a part of the inspection film is inserted so as to prevent relative rotation of the inspection film supply roll or the inspection film recovery roll.

[0023] Preferably, circular flanges are integrally formed on both ends of the unwinding roller and the winding roller to prevent the inspection film supply roll or the inspection film recovery roll from coming off.

[0024] Preferably, a support bracket is provided on each side of the connection manifold, and a film support bar having a rounded upper portion is provided on the upper portion of the support bracket to maintain the horizontal state of the inspection film.

[0025] Preferably, the housing and the cover box are provided with fastening means capable of fastening to each other to fix the mounting state of the cartridge part relative to the cartridge fastening part.

[0026] To solve the above technical problems, the inkjet head nozzle inspection device of the present invention includes a cartridge fastening part that is installed in a glove box in which inkjet equipment is built in, and a cartridge part that is equipped with a test bed for inspecting the ink droplet ejection state of the head nozzle of the inkjet equipment, and has a replaceable inspection film supply roll and an inspection film recovery roll attached to an upper part of the test bed so as to supply an inspection film, and is configured to be detachable from the cartridge fastening part.

[0027] Preferably, the cartridge fastening portion is installed in a maintenance area in the glove box for performing maintenance of a head nozzle of the inkjet equipment.

[0028] Preferably, the cartridge fastening portion includes at least one positive pressure supply hole connected to a positive pressure port provided with positive pressure, and at least one negative pressure supply hole connected to a negative pressure port provided with negative pressure, and the positive pressure of the positive pressure supply hole and the negative pressure of the negative pressure supply hole are provided to the cartridge portion.

[0029] Preferably, the cartridge fastening portion includes a rotation drive portion and a drive gear that rotates by the rotational force of the rotation drive portion, and the rotational force of the drive gear is provided to the cartridge portion.

[0030] Preferably, the cartridge fastening portion is configured to include a measuring gear that rotates by receiving the rotational force of a driven friction roller provided in the cartridge portion so as to rotate by friction with the inspection film unwound from the inspection film supply roll, a rotating disk that rotates while connected to the measuring gear, and a photosensor that detects the amount of rotation of the rotating disk, and is configured to calculate the amount of unwound inspection film from the inspection film supply roll based on the amount of rotation of the rotating disk detected by the photosensor.

[0031] Preferably, the cartridge fastening portion is provided with at least one mounting guide for guiding the mounting position of the cartridge portion.

[0032] Preferably, the cartridge portion includes at least one positive pressure connection hole to which positive pressure is provided from the cartridge fastening portion, and at least one negative pressure connection hole to which negative pressure is provided from the cartridge fastening portion, and the positive pressure supplied from the cartridge fastening portion to the positive pressure connection hole and the negative pressure supplied from the cartridge fastening portion to the negative pressure connection hole are supplied to an upper portion of the test bed.

[0033] Preferably, the cartridge portion is configured to include an unwinding roller to which the inspection film supply roll is attached, and a take-up roller to which an inspection film return roll is attached which winds up the inspection film from the inspection film supply roll attached to the unwinding roller, the take-up roller being configured to rotate by receiving a rotational force from the cartridge fastening portion, and the unwinding roller being configured to be frictionally supported by a friction means.

[0034] Preferably, the inspection surface of the inspection film unwound from the inspection film supply roll attached to the unwinding roller is transported toward the opposite side of the test bed, and then is wound up onto the inspection film recovery roll attached to the winding roller.

[0035] Preferably, the cartridge portion includes a driven friction roller that rotates due to friction with the inspection film unwound from the inspection film supply roll, and the rotational force of the driven friction roller is provided to the cartridge fastening portion.

[0036] Preferably, the cartridge fastening portion includes at least one positive pressure supply hole connected to a positive pressure port receiving positive pressure, and at least one negative pressure supply hole connected to a negative pressure port receiving negative pressure, and the cartridge portion includes at least one positive pressure connection hole connected to the positive pressure supply hole to receive the positive pressure of the positive pressure supply hole, and at least one negative pressure connection hole connected to the negative pressure supply hole to receive the negative pressure of the negative pressure supply hole, and the positive pressure supplied to the positive pressure connection hole and the negative pressure supplied to the negative pressure supply hole are supplied to an upper portion of the test bed to lift up the inspection film.

[0037] Preferably, the cartridge fastening portion is configured to include a rotational drive portion and a drive gear that rotates by the rotational force of the rotational drive portion, and the cartridge portion is configured to include an unwinding roller to which the inspection film supply roll is attached, and a winding roller to which an inspection film return roll is attached that winds up the inspection film from the inspection film supply roll attached to the unwinding roller, the unwinding roller is configured to be frictionally supported by a friction means, a driven gear is axially connected to the winding roller, and the rotational force of the drive gear is transmitted to the driven gear to rotate the winding roller.

[0038] Preferably, the cartridge portion is configured to include a driven friction roller that rotates due to friction with the inspection film unwound from the inspection film supply roll, a transmission gear is axially connected to the driven friction roller, and the cartridge fastening portion is configured to include a measurement gear that rotates by the rotational force of the transmission gear, a rotating disk that rotates while connected to the measurement gear, and a photosensor that detects the amount of rotation of the rotating disk, and is configured to calculate the amount of inspection film unwound from the inspection film supply roll based on the amount of rotation of the rotating disk detected by the photosensor.

[0039] In order to solve the above technical problems, the inspection film used in the inkjet head nozzle inspection device of the present invention has a porous ink droplet receiving layer on the surface thereof. Effect of the Invention

[0040] The present invention as described above has an advantage of shortening the inspection time by quickly and easily replacing the inspection film for inspecting the ejection state of ink droplets ejected from the head nozzle of the inkjet equipment installed in the glove box.

[0041] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. [Brief description of the drawings]

[0042] [Figure 1] 1 is a perspective view showing an inkjet head nozzle inspection device according to an embodiment of the present invention; [Diagram 2] 1 is a perspective view showing an inkjet head nozzle inspection device according to an embodiment of the present invention; [Diagram 3] 1 is a partially exploded perspective view showing an inkjet head nozzle inspection device according to an embodiment of the present invention; [Figure 4]4 is a perspective view showing the inside of a cartridge fastening unit of an inkjet head nozzle testing apparatus according to an embodiment of the present invention; [Diagram 5] 2 is an exploded perspective view showing a partial configuration of a cartridge unit of an inkjet head nozzle inspection device according to an embodiment of the present invention; FIG. [Figure 6] 2 is an exploded perspective view showing a test bed portion provided in a cartridge unit of an inkjet head nozzle testing apparatus according to an embodiment of the present invention; FIG. [Figure 7] 1 is a cross-sectional view illustrating an inkjet head nozzle inspection device according to an embodiment of the present invention. [Figure 8] 4 is a cross-sectional view showing an inspection film portion provided in a cartridge unit of an inkjet head nozzle inspection device according to an embodiment of the present invention; [Figure 9] 5A to 5C are diagrams illustrating a process in which a cartridge part is fastened to a cartridge fastening part of an inkjet head nozzle testing apparatus according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0043] The present invention may be embodied in various other forms without departing from the technical spirit or main characteristics thereof. Therefore, the present invention is to be construed as being merely illustrative in all respects and not restrictive.

[0044] Although the terms first, second, etc. are used to describe various components, the components are not limited to these terms.

[0045] The above terms are used only for the purpose of distinguishing one component from another component, for example, a first component may be named a second component, and similarly, the second component may be named a first component, without departing from the scope of the present invention.

[0046] The term and / or includes combinations of multiple items or any of multiple items.

[0047] When an element is referred to as being "coupled" or "connected" to another element, it may be directly coupled or connected to the other element, but it should be understood that there may be other elements in between.

[0048] Conversely, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

[0049] The terms used in this application are merely used to describe specific embodiments and are not intended to limit the present invention. A singular expression includes a plural expression unless otherwise clearly indicated in the context.

[0050] In this application, the terms "including," "comprising," "having," and the like, are intended to specify the presence of any feature, numeral, step, operation, component, part, or combination thereof described hereinabove in the specification, but are to be understood as not precluding the presence or additional possibility of one or more other features, numerals, steps, operations, components, parts, or combinations thereof.

[0051] Unless otherwise defined, all terms, including technical or scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0052] The same terms defined in commonly used dictionaries should be construed to have a meaning consistent with the meaning they have in the context of the relevant art, and not to be construed in an idealized or overly formal sense unless expressly defined in this application.

[0053] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Regardless of the reference numerals, the same or corresponding elements will be given the same reference numerals and redundant description thereof will be omitted.

[0054] In describing the present invention, if it is determined that a detailed description of related publicly known techniques may obscure the gist of the present invention, the detailed description will be omitted.

[0055] An inkjet head nozzle testing apparatus according to an embodiment of the present invention includes a cartridge fastening part 100 and a cartridge part 200, as shown in FIGS.

[0056] First, the cartridge fastening portion 100 will be described in detail.

[0057] The cartridge fastening part 100 is installed in a glove box in which an inkjet device is installed, and the cartridge part 200 is configured to be detachable.

[0058] In detail, the cartridge fastening part 100 is installed in a maintenance area for performing maintenance on the head nozzle of the inkjet device in the inner space of the glove box, that is, in an area accessible by an operator using the glove box.

[0059] As shown in FIGS. 1 to 4, the cartridge fastening part 100 includes a fixed base 110, a housing 120, and a supply manifold .

[0060] The fixing base 110 is a portion configured so that the cartridge fastening part 100 is installed in a glove box, and the fixing base 110 is installed in a maintenance area in the glove box for performing maintenance on the head nozzles of the inkjet equipment.

[0061] Specifically, the fixed base 110 is mounted on a stage that is movable in the X-axis or Y-axis direction on a plane in a maintenance area in a glove box.

[0062] A guide rail 111 for guiding the installation of the cartridge part 200 is formed on the upper surface of the fixed base 110, and the cartridge part 200 is provided with a first guider 211 and a second guider that are slidable along the guide rail 111, and the cartridge part 200 is guided to the installation position by the guide rail 111 when it is installed.

[0063] In detail, a first guider 211 is provided on the lower surface of a cover box 210 constituting the cartridge portion 200 , and a second guider 221 is provided on the lower surface of an outer plate 220 constituting the cartridge portion 200 .

[0064] The housing 120 is fixed to one side of the fixed base 110 and has a rectangular box shape.

[0065] As shown in FIGS. 3 and 4, a rotary driver 121 and a driving gear 123 that rotates by the rotational force of the rotary driver 121 and is exposed at the bottom of the housing 120 are provided inside the housing 120.

[0066] The rotation driving unit 121 is a means for rotation driving such as a motor, a reducer, etc., and the rotation driving unit 121 receives power from a power supply device in the glove box to generate a rotational force.

[0067] The driving gear 123 is a part that is axially connected to the driving shaft of the rotation driving part 121 and rotates, and the driving gear 123 is configured to be exposed to the outside of the housing 120 in the direction in which the cartridge part 200 is fastened.

[0068] When the cartridge fastening part 110 and the cartridge part 200 are fastened to each other, the rotational force of the driving gear 123 , which is rotated by the rotation driving part 121 , is provided to the cartridge part 200 .

[0069] Meanwhile, as shown in FIG. 4, a measuring gear 125a is provided inside the housing 120, which rotates by receiving the rotational force of the driven friction roller 245 provided in the cartridge part 200, a rotating disk 125b which is connected to the measuring gear 125a and rotates, and a photosensor 125c which detects the amount of rotation of the rotating disk 125b.

[0070] For example, the measurement gear 125a is axially connected to one side of a rotating shaft that is rotatably supported by a rolling means such as a bearing, and the rotating disk 125b is axially connected to the other side of the rotating shaft, so that when the measurement gear 125a rotates, the rotating disk 125b rotates integrally.

[0071] The photosensor 125c senses the amount of rotation of the rotating disk 125b, and calculates the amount of rotation of the driven friction roller 245 based on the sensed amount of rotation of the rotating disk 125b.

[0072] The driven friction roller 245 is a part that rotates due to friction with the inspection film F unwound from the inspection film supply roll R1, and the amount of unwound of the inspection film F unwound from the inspection film supply roll R1 is calculated by calculating the amount of rotation of the driven friction roller 245.

[0073] A guide protrusion 127 is provided on the corresponding surface of the housing 12 to which the cartridge part 200 is attached, and a guide bushing 217 is provided on the corresponding portion of the cartridge part 200 corresponding to the guide protrusion 127, and the mounting position of the cartridge part 200 relative to the cartridge fastening part 100 is guided by the guide protrusion 127 and the guide bushing 217.

[0074] In detail, the guide bushing 217 is provided on a corresponding surface of the cover box 210 of the cartridge portion 200 facing the housing 120 .

[0075] Meanwhile, a first fastening means 190 for fastening to the cover box 210 of the cartridge part 200 is provided on the side portion of the housing 120, and a second fastening means 290 is provided on the corresponding portion of the cover box 210 corresponding to the first fastening means 190, and the first fastening means 190 and the second fastening means 290 fix the mounting state of the cartridge part 200 to the cartridge fastening part 100.

[0076] The supply manifold 130 is mounted to the top of the housing 120 .

[0077] One side of the supply manifold 130 is provided with a positive pressure port 131a connected to a positive pressure supply device in the glove box to receive positive pressure, and a negative pressure port 132a connected to a negative pressure supply device in the glove box to receive negative pressure.

[0078] The other side of the supply manifold 130 is provided with a positive pressure supply hole 131b connected to the positive pressure port 131a and supplied with positive pressure, and a negative pressure supply hole 132b connected to the negative pressure port 132a and supplied with negative pressure.

[0079] In this embodiment, the supply manifold 130 is illustrated as having two positive pressure ports 131a and positive pressure supply holes 131b, and one negative pressure port 132a and negative pressure supply hole 132b, but the numbers of the positive pressure ports 131a, negative pressure ports 132a, positive pressure supply holes 131b, and negative pressure supply holes 132b may be changed in various ways.

[0080] When the cartridge fastening part 110 and the cartridge part 200 are fastened, the positive pressure of the positive pressure supply hole 131 b and the negative pressure of the negative pressure supply hole 132 b are provided to the connection manifold 230 of the cartridge part 200 .

[0081] Next, the cartridge portion 200 will be described in detail.

[0082] The cartridge unit 200 includes a test bed 235 for testing the ink droplet ejection state of the head nozzle of the inkjet equipment, and a test film supply roll R1 and a test film recovery roll R2 are attached to the upper portion of the test bed 235 to supply a test film F.

[0083] Meanwhile, the cartridge part 200 is configured to be fastened to or detached from the cartridge fastening part 100 .

[0084] For example, the cartridge part 200 is supplied to the maintenance area in the glove box through an antechamber that is configured to be connected to or separated from the glove box through an opening and closing door, and then the cartridge part 200 can be easily attached to the cartridge fastening part 100 by an operator.

[0085] As shown in FIGS. 1 to 3, 5 and 6, the cartridge unit 200 includes a cover box 210, an outer plate 220, a connection manifold 230, a test bed 235, an unwinding roller 341 and a winding roller 243.

[0086] The cover box 210 is formed in a rectangular box shape with one side open, and its lower surface is mounted on the upper surface of the fixed base 110 and the open portion is mounted on the housing 120 so that it can be fastened to the cartridge fastening part 100.

[0087] The outer plate 220 is connected to the other side of the cover box 210 by a plurality of connecting rods 250, and is formed approximately in an "I" shape.

[0088] The multiple connecting rods 250 are configured to connect or detach the cover box 210 and the outer plate 220 to each other. For example, one end of each connecting rod 250 is configured to pass through the first hole h1 of the outer plate 220 and fixed to the second groove h2 of the cover box 210, and a knob 250n provided at the other end of each connecting rod 250 is configured to straddle the first hole h1 of the outer plate 220.

[0089] Therefore, by rotating the knob 250n while one end of the connecting rod 250 is inserted through the first hole h1 and positioned in the second groove h2, the connecting rod 250 fastens the cover box 210 and the outer plate 220 while maintaining a constant distance from each other.

[0090] A known fastening structure, such as a bolt and nut structure or a barb, that can be fastened to one end of the connecting rod 250 and the second groove h2 when the connecting rod 250 rotates, is applied.

[0091] The connection manifold 230 is fastened across an upper portion of the cover box 210 and an upper portion of the outer plate 220 .

[0092] As shown in FIG. 6, the connection manifold 230 is formed in an approximately rectangular block shape, and includes at least one positive pressure connection hole 231a connected to the positive pressure supply hole 131b of the supply manifold 130 to receive positive pressure from the positive pressure supply hole 131b, a positive pressure discharge hole 231b that provides the positive pressure of the positive pressure connection hole 231a to the test bed 235, at least one negative pressure connection hole 232a connected to the negative pressure supply hole 132b to receive negative pressure from the negative pressure supply hole 132b of the supply manifold 130, and a negative pressure discharge hole 232b that provides the negative pressure of the negative pressure connection hole 232a to the test bed 235.

[0093] In other words, when the cartridge fastening part 100 and the cartridge part 200 are fastened, the supply manifold 130 of the cartridge fastening part 100 and the connection manifold 230 of the cartridge part 200 are connected to each other, and at this time, the positive pressure supply hole 131b and the positive pressure connection hole 231a are connected to each other, and the negative pressure supply hole 132b and the negative pressure connection hole 232a are connected to each other.

[0094] Meanwhile, O-rings are provided between the positive pressure supply hole 131b and the positive pressure connection hole 231a, and between the negative pressure supply hole 132b and the negative pressure connection hole 232a, and the O-rings are provided on either one of the supply manifold 130 or the connection manifold 230.

[0095] The positive pressure supplied from the supply manifold 130 of the cartridge fastening part 100 to the positive pressure connection hole 231 a and the negative pressure supplied from the negative pressure connection hole 232 a are provided to the test bed 235 .

[0096] The test bed 235 is assembled on top of the connection manifold 230 .

[0097] As shown in FIG. 6, the test bed 235 is formed in a structure in which a lower block 235a and an upper block 235b are integrally formed with each other, and is configured with the same or similar structure as a known levitation device that levitates a substrate at a predetermined interval using positive and negative pressure, so detailed description is omitted.

[0098] The test bed 235 is connected to a positive pressure exhaust hole 231b and a negative pressure exhaust hole 232b of the connection manifold 230, and configured so that both positive pressure and negative pressure act on the upper surface of the upper block of the test bed 235.

[0099] The connection manifold 230 has a positive pressure exhaust hole 231b and a negative pressure exhaust hole 232b each provided with an O-ring O.

[0100] Meanwhile, a support bracket 233 is provided on each side of the connection manifold 230, and a film support bar 234 having a rounded upper portion is provided on the upper portion of the support bracket 233 to maintain the horizontal state of the inspection film F.

[0101] Therefore, the test film F is supplied to the top of the test bed 235 in a horizontal state by the film support bar 234, and the test film F is maintained in a raised state at a predetermined interval above the test bed 235 due to the positive and negative pressure acting on the upper surface of the test bed 235.

[0102] The unwinding roller 241 and the winding roller 243 are arranged parallel to each other between the cover box 210 and the outer plate 220 and are fitted with replaceable inspection film rolls. More specifically, the unwinding roller 241 is fitted with an inspection film supply roll R1, and the winding roller 243 is fitted with an inspection film return roll R2.

[0103] As shown in Figures 5 and 7, the unwinding roller 241 is divided into a first unwinding body 241-1 rotatably supported by a first bearing B1 on the cover box 210, and a second unwinding body 241-2 rotatably supported by a second bearing B2 on the outer plate 220.

[0104] Meanwhile, a first unwinding body 241-1 of the unwinding roller 241 is formed with a first rotation prevention protrusion 241-1p into which a part of the inspection film supply roll R1 is inserted so as to prevent the relative rotation of the inspection film supply roll R1.

[0105] A first circular flange 241p is integrally formed on both ends of the unwinding roller 241 to prevent the inspection film supply roll R1 from coming off.

[0106] As shown in FIG. 3, the unwinding roller 241 is configured to be frictionally supported by a friction means including a pulley 241a axially connected to the unwinding roller 241 and exposed to the open portion of the cover box 210, a friction wire 241b wound around the pulley 241a to generate a predetermined friction force, and a fixing bracket 241c to fix both ends of the friction wire 241b.

[0107] Since the unwinding roller 241 is frictionally supported by the friction means, when the inspection film F wound around the inspection film supply roll R1 is unwound by the winding roller 243, a predetermined tension is applied to the inspection film F by the friction means.

[0108] As shown in Figures 5 and 7, the winding roller 243 is divided into a first winding body 243-1 rotatably supported on the cover box 210 by a third bearing B3, and a second winding body 243-2 rotatably supported on the outer plate 220 by a fourth bearing B4.

[0109] Meanwhile, a second rotation prevention protrusion 243-1p is formed on the first winding body 243-1 of the winding roller 243, into which a part of the inspection film collecting roll R2 is inserted so as to prevent the relative rotation of the inspection film collecting roll R2.

[0110] The winding roller 243 is integrally formed at both ends with second circular flanges 243p for preventing the inspection film recovery roll R2 from coming off.

[0111] As shown in FIG. 3, the take-up roller 243 is exposed to an open portion of the cover box 210 and configured to have a driven gear 243g that meshes with the driving gear 123 and is axially coupled thereto.

[0112] The winding roller 243 is configured to rotate by receiving a rotational force from the cartridge fastening portion 100, and more specifically, the rotational force of the driving gear 123 is transmitted to the driven gear 243g, thereby driving the winding roller 243 to rotate.

[0113] Meanwhile, a driven friction roller 245 is further provided between the cover box 210 and the outer plate 220, and the driven friction roller 245 is provided parallel to the unwinding roller 241 and is configured to be axially coupled to a transmission gear 245g exposed to the open portion of the cover box 210.

[0114] More specifically, the driven friction roller 245 is rotatably supported by bearings provided in the third hole h3 and the fourth hole h4.

[0115] Therefore, the rotational force of the transmission gear 245g is transmitted to the measurement gear 125a, and the rotational force transmitted to the measurement gear 125a rotates the rotating disk 125b, and the photosensor 125c detects the amount of rotation of the rotating disk 125b and calculates the amount of inspection film F unwound from the inspection film supply roll R1.

[0116] With the configuration of the unwinding roller 241 and the winding roller 243 as described above, the inspection surface of the inspection film F unwound from the inspection film supply roll R1 attached to the unwinding roller 241 is transported upward on the test bed 235, and then wound up onto the inspection film recovery roll R2 attached to the winding roller 243.

[0117] Meanwhile, as shown in FIG. 8, a porous ink droplet receiving layer F2 is provided on the surface of the inspection film wound around the inspection film supply roll. More specifically, the ink droplet receiving layer F2 is formed by coating the surface of a PET film F1 with an AAO (Anodic Aluminium Oxide) layer or a nanoparticle layer, thereby preventing an error that the ink droplets D that are impacted on the surface of the inspection film F are displaced due to device movement or vibration.

[0118] Although the present invention has been described with reference to the accompanying drawings and focusing on the preferred embodiment, it will be apparent to those skilled in the art that many various and obvious modifications can be made from such description without departing from the scope of the present invention. Therefore, the scope of the present invention should be interpreted by the claims written to include many such modifications.

Claims

1. An inkjet head nozzle inspection film supplying device that supplies an inspection film for inspecting the ejection state of ink droplets ejected from a head nozzle of an inkjet device provided in a glove box, a cartridge fastening unit including a fixing base installed in a maintenance area in the glove box for performing maintenance of the head nozzle of the inkjet equipment, a square box-shaped housing fixed to an upper portion of one side of the fixing base, and a supply manifold attached to an upper portion of the housing; and a cartridge unit including: a cover box formed in a square box shape with one side open, with a bottom surface seated on an upper surface of the fixed base and an open portion seated on the housing so as to be fastened to the cartridge fastening unit; an outer plate fastened to the other side of the cover box by a plurality of connecting rods; a connection manifold fastened across an upper portion of the cover box and an upper portion of the outer plate; a test bed assembled on an upper portion of the connection manifold; and a cartridge unit including: a winding roller on which a replaceable inspection film supply roll is attached, the winding roller being arranged in parallel between the cover box and the outer plate and having a replaceable inspection film return roll attached thereto.

2. The supply manifold includes: The pressure sensor includes at least one positive pressure supply hole connected to a positive pressure port receiving a positive pressure, and at least one negative pressure supply hole connected to a negative pressure port receiving a negative pressure, The connection manifold includes:

2. The film supply device for inkjet head nozzle inspection according to claim 1, comprising: at least one positive pressure connection hole connected to the positive pressure supply hole to receive the positive pressure of the positive pressure supply hole; a positive pressure discharge hole for supplying the positive pressure of the positive pressure connection hole to the test bed; at least one negative pressure connection hole connected to the negative pressure supply hole to receive the negative pressure of the negative pressure supply hole; and a negative pressure discharge hole for supplying the negative pressure of the negative pressure connection hole to the test bed.

3. Inside the housing, a rotation drive unit; and a drive gear that is exposed to the outside of the housing while rotating by a rotational force of the rotation drive unit, The winding roller is 2. The inkjet head nozzle inspection film supplying device of claim 1, wherein a driven gear is exposed at the open portion of the cover box and engaged with the driving gear, the driven gear being axially coupled thereto.

4. The cartridge portion includes: a driven friction roller, the driven friction roller being axially connected to a transmission gear provided between the cover box and the outer plate and parallel to the winding roller and exposed to an open portion of the cover box; The cartridge fastening portion is 2. The inkjet head nozzle inspection film supplying device of claim 1, comprising: a measurement gear that meshes with the transmission gear; a rotating disk that is axially connected to the measurement gear; and a photosensor that detects the amount of rotation of the rotating disk.

5. 2. The inkjet head nozzle inspection film supplying device of claim 1, wherein a guide rail is formed on an upper surface of the fixed base, and a guider guided by the guide rail is provided on lower surfaces of the cover box and the outer plate.

6. 2. The inkjet head nozzle inspection film supply device of claim 1, wherein the opposing surfaces of the housing and the cover box are respectively provided with a guide protrusion for guiding the mounting position of the cartridge part relative to the cartridge fastening part, and a guide bushing into which the guide protrusion is inserted.

7. The unwinding roller is 2. The inkjet head nozzle inspection film supply device of claim 1, wherein the inkjet head nozzle inspection film supply device is configured to be frictionally supported by a friction means including: a pulley axially connected to the unwinding roller and exposed to the open portion of the cover box; a friction wire wound around the pulley to generate a predetermined friction force; and a fixing bracket for fixing both ends of the friction wire.

8. The unwinding roller is a first unwinding body rotatably supported on the cover box, and a second unwinding body rotatably supported on the outer plate, The winding roller is 2. The inkjet head nozzle inspection film supply device according to claim 1, comprising a first winding body rotatably supported on the cover box, and a second winding body rotatably supported on the outer plate.

9. 2. The inkjet head nozzle inspection film supply device of claim 1, wherein the plurality of connecting rods are configured to be removable from the cover box and the outer plate, and the outer plate is configured to be removable from the cover box when the plurality of connecting rods are removed from the cover box and the outer plate.

10. The unwinding roller and the winding roller are 2. The inkjet head nozzle inspection film supply device of claim 1, wherein a rotation prevention protrusion is formed into which a portion of the inspection film is inserted so as to prevent relative rotation of the inspection film supply roll or the inspection film recovery roll.

11. At both ends of the unwinding roller and the winding roller, 2. The inkjet head nozzle inspection film supply device according to claim 1, further comprising a circular flange formed integrally with the inspection film supply roll or the inspection film recovery roll to prevent the inspection film supply roll or the inspection film recovery roll from coming off.

12. 2. The inkjet head nozzle inspection film supplying device of claim 1, wherein a support bracket is provided on each side of the connection manifold, and a film support bar having a rounded upper portion is provided on an upper portion of the support bracket to maintain the inspection film in a horizontal state.

13. 2. The inkjet head nozzle inspection film supplying device according to claim 1, wherein the housing and the cover box are each provided with a fastening means capable of fastening to each other to fix an attached state of the cartridge part relative to the cartridge fastening part.

14. 2. The apparatus of claim 1, wherein the inspection film is provided with a porous ink droplet receiving layer on a surface of the inspection film.

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