Discharge device and method for controlling the same

Abstract

A discharge device according to an embodiment includes: a discharge unit configured to accommodate and discharge a polymer material; a sensing unit configured to sense a characteristic of the polymeric material; and a control unit configured to control a discharge pressure of the discharge unit according to a signal sensed from the sensing unit, in which the sensing unit includes: an output unit configured to output infrared light; a receiving unit configured to receive reflected light of the infrared light reflected from the polymer material; and a detector configured to irradiate the infrared light provided from the output unit to the polymer material, and transmit the reflected light reflected from the polymer material to the receiving unit.

Description

Technical Field

[0001] The embodiment relates to a discharging device, and more particularly, to a discharging device capable of changing discharging conditions by predicting changes in a polymer material when it is stationary, and a control method thereof. Background Art

[0002] Generally, an adhesive member is used to join a plurality of components together.

[0003] For example, a semiconductor package includes a substrate including a semiconductor device and a lid provided on the substrate. The lid is also referred to as a cover.

[0004] The lid can protect the semiconductor device provided on the substrate and discharge heat generated from the substrate and the semiconductor device to the outside.

[0005] At this time, the adhesive member is accommodated in the discharging device. In addition, the adhesive member is coated on the substrate according to the discharging pressure controlled by the discharging device. The discharging pressure is determined based on the coating amount or discharging amount of the adhesive member. For example, the discharging device sets the discharging pressure based on the amount of the adhesive member to be coated or discharged on the substrate.

[0006] In addition, the adhesive member is made of a polymer material such as epoxy resin.

[0007] Furthermore, the viscosity or degree of curing of the polymer material changes according to the surrounding environment. In addition, changes in the viscosity or degree of curing also occur inside the discharging device.

[0008] For example, the viscosity or degree of curing of the adhesive member accommodated in the discharging device may change according to the surrounding environment (e.g., temperature or humidity). In addition, the viscosity or degree of curing of the adhesive member accommodated in the discharging device may change over time.

[0009] At this time, if the viscosity or degree of curing of the adhesive member changes, there is a problem that a certain amount of the adhesive member cannot be discharged from the discharging device.

[0010] For example, if the viscosity or degree of curing of the adhesive member increases when discharging the first amount of the adhesive member at the discharging pressure of the first strength, a second amount of the adhesive member smaller than the first amount may be discharged from the discharging device. In addition, if the discharging amount of the adhesive member decreases as the viscosity or degree of curing increases, there is a problem that the bonding force between the substrate and the lid decreases.

[0011] In addition, a device for measuring the viscosity of the adhesive member can be used to measure the viscosity of the adhesive member. For example, a device for measuring the viscosity of the adhesive member can be used to analyze the characteristics of the adhesive member, and the device can be used to measure the viscosity of the adhesive member.

[0012] However, it takes at least more than one hour to perform characteristic analysis and viscosity measurement on the adhesive member. Therefore, there is a problem in that it is difficult to measure the viscosity of the adhesive member in real time. That is to say, even when analyzing the adhesive member, the viscosity of the adhesive member continues to change. Therefore, the viscosity measured using the device refers to the previous viscosity of the adhesive member, rather than the current viscosity of the adhesive member. Therefore, there is a problem in that it is difficult to check the viscosity or degree of curing of the polymer material in real time.

[0013] That is to say, conventionally, measuring the viscosity of the adhesive member is only for simple reference, and there is a problem in that it is difficult to measure the viscosity of the adhesive member in real time.

[0014] Therefore, a method capable of measuring the viscosity of the adhesive member accommodated in or discharged from the discharge device in real time is needed. Summary of the Invention

[0015] Technical Problem

[0016] An embodiment provides a discharge device capable of measuring the viscosity or degree of curing of an adhesive member in real time and a control method thereof.

[0017] In addition, an embodiment provides a discharge device capable of measuring the viscosity or degree of curing of an adhesive member according to the state of reactive groups contained in the adhesive member and a control method thereof.

[0018] In addition, an embodiment provides a discharge device capable of accurately analyzing the characteristics of an adhesive member in real time and a control method thereof.

[0019] In addition, an embodiment provides a discharge device capable of improving the characteristics of the discharge process of an adhesive member and a control method thereof.

[0020] In addition, an embodiment provides a discharge device capable of quantitatively predicting the change of an adhesive member when it is left standing and a control method thereof.

[0021] In addition, an embodiment provides a discharge device capable of discharging a constant amount of an adhesive member to a workpiece regardless of changes in time or temperature and a control method thereof.

[0022] In addition, an embodiment provides a discharge device capable of accurately measuring and / or analyzing the performance of an adhesive member without disturbing the chemical composition of the adhesive member and a control method thereof.

[0023] The technical problems to be solved by the proposed embodiments are not limited to the above technical problems, and other technical problems not mentioned can be clearly understood by those skilled in the art belonging to the field of the embodiments proposed below.

[0024] Technical Solution

[0025] The discharging device according to an embodiment includes: a discharging unit configured to accommodate and discharge a polymer material; a sensing unit configured to sense characteristics of the polymer material; and a control unit configured to control a discharging pressure of the discharging unit according to a signal sensed from the sensing unit, wherein the sensing unit includes: an output unit configured to output infrared light; a receiving unit configured to receive reflected light of the infrared light reflected from the polymer material; and a detector configured to irradiate the infrared light provided from the output unit onto the polymer material and transmit the reflected light reflected from the polymer material to the receiving unit.

[0026] In addition, the discharging unit includes a syringe barrel configured to accommodate the polymer material and a needle configured to discharge the polymer material.

[0027] In addition, the detector includes at least one of a first detector and a second detector, the first detector being configured to irradiate infrared light onto the polymer material accommodated in the syringe barrel, and the second detector being configured to irradiate infrared light onto the polymer material discharged through the needle.

[0028] In addition, the detector irradiates infrared light at a position spaced apart from the discharging unit and receives the reflected light.

[0029] In addition, the detector is arranged at an inclination angle in a range of 60 degrees to 120 degrees with respect to the syringe barrel.

[0030] In addition, the detector includes a first part and a second part configured to be bendable relative to the first part.

[0031] In addition, the sensing unit further includes a connection line connecting the detector to the output unit and the receiving unit, and the length of the connection line is in a range of 1 m to 6 m.

[0032] In addition, the detector is made of at least one of stainless steel and aluminum.

[0033] In addition, the polymer material includes an adhesive member, and the sensing unit senses information corresponding to the viscosity of the adhesive member.

[0034] In addition, the information corresponding to the viscosity of the adhesive member is information about reactive groups.

[0035] In addition, a method for controlling discharging according to an embodiment includes: arranging a detector of a sensing unit on a discharging unit from which a polymer material is discharged; transmitting infrared light to the polymer material through the detector; receiving, through the detector, the reflected light reflected from the polymer material; sensing characteristics of the polymer material using the received reflected light; and controlling a discharging pressure based on the sensed information.

[0036] In addition, the reflected light is at least one of the reflected light reflected from the polymer material accommodated in the discharge unit and the reflected light reflected from the polymer material discharged from the needle of the discharge unit.

[0037] In addition, the step of arranging the detector includes arranging the detector to irradiate infrared light at a position spaced apart from the discharge unit and receive the reflected light.

[0038] In addition, the step of arranging the detector includes arranging the detector to have an inclination angle in the range of 60 degrees to 120 degrees with respect to the syringe barrel.

[0039] In addition, the step of arranging the detector includes arranging the detector such that the length of the connection line connected to the detector has a range of 1 m to 6 m.

[0040] In addition, the discharged polymer material includes an adhesive member, and the sensed information is information corresponding to the viscosity or degree of curing of the adhesive member.

[0041] In addition, the step of controlling the discharge pressure includes increasing the discharge pressure as the measured viscosity or degree of curing is higher.

[0042] In addition, the sensed information is information about the reactive groups of the adhesive member, and the control of the discharge pressure includes controlling the discharge pressure according to the detected amount of the reactive groups of the adhesive member.

[0043] In addition, the control of the discharge pressure includes increasing the discharge pressure when the detected amount decreases.

[0044] In addition, the information about the reactive groups is information about the amine groups contained in the adhesive member.

[0045] Advantageous Effects

[0046] The embodiments can measure the viscosity or degree of curing of the adhesive member in real time. For example, the embodiments can measure the viscosity or degree of curing of the adhesive member according to the state of the reactive groups contained in the adhesive member. Therefore, the embodiments can accurately analyze the characteristics of the adhesive member in real time. In addition, the embodiments can quantitatively predict the changes when the adhesive member is left standing.

[0047] In addition, the embodiments can control the discharge conditions of the discharge unit according to the changes in the viscosity or degree of curing of the adhesive member. For example, when the viscosity or degree of curing of the adhesive member increases, the embodiments can correspondingly increase the discharge pressure of the discharge unit.

[0048] Therefore, the embodiments can improve the discharge process characteristics of the adhesive member.

[0049] In addition, regardless of changes in time or temperature, the embodiments can discharge a constant amount of the adhesive member onto the workpiece.

[0050] Therefore, the embodiments can improve product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a schematic diagram of a discharge system according to an embodiment.

[0052] Figure 2 is for explaining Figure 1 the detailed structure of the discharge unit.

[0053] Figure 3 is for explaining Figure 1 the detailed structure of the sensor.

[0054] Figure 4 is for explaining the infrared spectrum obtained by Figure 3 the sensing unit.

[0055] Figure 5 is a diagram for explaining the reaction between the first material and the second material of the adhesive member according to an embodiment.

[0056] Figure 6 is a diagram for explaining the change in viscosity of the adhesive member over time according to an embodiment.

[0057] Figure 7 is a diagram showing the change in the state of the reactive groups of the adhesive member over time.

[0058] Figure 8 is a diagram showing the relationship between the number of reactive groups and the viscosity of the adhesive member according to an embodiment.

[0059] Figure 9 is a schematic diagram showing the arrangement structure of a detector according to an embodiment.

[0060] Figure 10 is a schematic diagram showing the arrangement structure of a detector according to another embodiment.

[0061] Figure 11 is a diagram explaining the structure of a detector and connection wiring according to an embodiment.

[0062] Figure 12 is a flowchart showing step by step the control method of a discharge device according to an embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0063] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0064] However, the spirit and scope of the present disclosure are not limited to a part of the described embodiments and can be implemented in various other forms. Within the spirit and scope of the present disclosure, one or more elements of the embodiments can be selectively combined and rearranged.

[0065] In addition, unless otherwise clearly defined and described, the terms (including technical terms and scientific terms) used in the embodiments of the present disclosure can be interpreted to have the same meaning as commonly understood by those of ordinary skill in the art to which the present disclosure pertains, and terms such as those defined in common dictionaries can be interpreted to have a meaning consistent with their meaning in the context of the relevant field. Further, the terms used in the embodiments of the present disclosure are used to describe the embodiments and are not intended to limit the present disclosure.

[0066] In this specification, unless specifically stated in the wording, the singular form may also include the plural form, and when described as "at least one (or more) of A, B, and C", it may include at least one of all combinations in which A, B, and C can be combined. In addition, when describing the elements of the embodiments of the present disclosure, terms such as first, second, A, B, (a), and (b) may be used.

[0067] These terms are only used to distinguish an element from other elements, and these terms are not limited to the nature, order, or sequence of the elements. In addition, when an element is described as "connected", "coupled", or "contacted" with another element, it may include not only the case where the element is directly "connected", "coupled", or "contacted" with the other element, but also the case where the element is "connected", "coupled", or "contacted" with the other element through another element between the element and the other element.

[0068] In addition, when described as being formed or provided "on (above)" or "under (below)" each element, "on (above)..." or "under (below)..." may include not only the case where two elements are directly connected to each other, but also the case where one or more other elements are formed or provided between the two elements. In addition, when expressed as "on (above)..." or "under (below)...", it may include not only the upward direction based on one element, but also the downward direction based on one element.

[0069] Hereinafter, a discharging device and a control method thereof according to an embodiment will be described.

[0070] Figure 1 is a schematic diagram of a discharging system according to an embodiment.

[0071] Figure 2 is for explaining Figure 1 the detailed structure of the discharging unit of Figure 3 is for explainingFigure 1 Figure showing the detailed structure of the sensor Figure 4 is for explaining Figure 3 the infrared spectrum obtained by the sensing unit of

[0072] Referring to Figure 1 , the discharging system includes a workbench 100, a workpiece 110, and a discharging device 200.

[0073] The workbench 100 can provide a space for setting the workpiece 110. For example, the workbench 100 can set the workpiece 110 in the area where the discharging device 200 is located.

[0074] The workbench 100 may include a moving part for moving the workpiece 110 to the discharging area and a fixing part for fixing the workpiece 110 moved to the discharging area.

[0075] The workpiece 110 can be set on the workbench 100. The workpiece 110 may refer to a substrate, and the adhesive member provided by the discharging device 200 is coated on the substrate. However, the embodiments are not limited thereto. For example, the workpiece 110 may be a component other than the substrate of a device (such as a camera module) on which the adhesive member is coated.

[0076] The discharging device 200 can coat the adhesive member on the workpiece 110 set on the workbench 100.

[0077] For this purpose, the discharging device 200 may include a discharging unit 220 that accommodates the adhesive member 210 and discharges the accommodated adhesive member 210 toward the workpiece 110.

[0078] The adhesive member 210 may be a polymer material. For example, the adhesive member 210 may be a polymer material containing an adhesive component. As an example, the adhesive member 210 may be an epoxy resin, but is not limited thereto.

[0079] In other words, the adhesive member 210 is a polymer material containing an adhesive component. For example, it may contain an epoxy resin. Epoxy resin is a thermosetting resin and may have excellent properties of water resistance and resistance to weather changes, as well as excellent curing and adhesion properties.

[0080] The epoxy resin constituting the adhesive member 210 may be selected from the group consisting of bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin, alicyclic epoxy resin, cresol novolak epoxy resin, and biphenyl type epoxy resin. Hereinafter, the adhesive member 210 will be described as an epoxy resin, which is a polymer material having an adhesive material.

[0081] In one embodiment, the adhesive member 210 may be a one-component adhesive member. For example, the main agent and the curing agent may be accommodated in the discharge unit 220 in a mixed state. In the one-component adhesive member, the main agent and the hardening agent may hardly react at room temperature. For example, the one-component adhesive member may be a heat-curable adhesive member or a UV-curable adhesive member.

[0082] In another embodiment, the adhesive member 210 may be a two-component adhesive member. For example, the adhesive member 210 may be provided with a main agent, and the curing agent may be separately accommodated, and the main agent and the curing agent may be accommodated in the discharge unit 220 in a separated state. In this case, the discharge unit 220 may mix the main agent and the curing agent and discharge them to the workpiece 110. That is to say, the two-component adhesive member may be a room-temperature curable adhesive member. That is to say, since the room-temperature curable adhesive member has a very high reactivity between the main agent and the curing agent, the change rate of the viscosity or the degree of curing increases with time. Therefore, the main agent and the curing agent may be accommodated in the discharge unit 220 in a separated state. Then, when it is desired to discharge the adhesive member 210 to the workpiece 110, the main agent and the curing agent may be mixed, and then the mixed material may be discharged to the workpiece 110.

[0083] The discharging device 200 may sense a change in the characteristics of the adhesive member 210 accommodated in the discharge unit 220 or the adhesive member 210 discharged from the discharge unit 220, and control the discharging conditions of the discharge unit 220 according to the sensed change in the characteristics of the adhesive member 210.

[0084] At this time, as described above, in the case of the one-component adhesive member, the reactivity is very low at room temperature. Therefore, if the adhesive member 210 accommodated in the discharge unit 220 is a one-component adhesive member, the characteristics of the adhesive member 210 may hardly change when the adhesive member 210 is discharged by the discharge unit 220. Therefore, if the adhesive member 210 is a one-component adhesive member, it may not be necessary to significantly control the discharging conditions of the discharging device 200 according to the embodiment. For example, since the one-component adhesive member has a very low reactivity at room temperature, the degree of curing or the viscosity may not change much. Therefore, when the adhesive member 210 is set as the one-component adhesive member, the effect exhibited by the discharging device 200 of the embodiment may be minimal.

[0085] However, the one-component adhesive member has low reactivity at room temperature, but it is stored frozen in case of emergency. For example, the one-component adhesive member is stored at a temperature of about -20°C. In addition, in order to use the one-component adhesive member, a process is performed in which the frozen one-component adhesive member is exposed to room temperature for a certain period of time. In this case, during the melting of the frozen one-component adhesive member, the viscosity or degree of curing may change according to the surrounding environment. In addition, although the one-component adhesive member has low reactivity at room temperature, it may change when left standing according to time or the surrounding environment.

[0086] Therefore, for the one-component adhesive member, the embodiments can control the discharge conditions according to the change in the characteristics of the following adhesive member 210. Therefore, the embodiments sense the change when the one-component adhesive member is left standing, thereby preventing the adhesive member 210 less than the target amount from being discharged onto the workpiece 110.

[0087] However, when applied to the two-component adhesive member, the effect of the discharge device 200 of the embodiments can be maximized. For example, since the two-component adhesive member has high reactivity at room temperature, the characteristics of the main agent and the curing agent of the adhesive member 210 mixed in the discharge unit 220 may change greatly according to time or the surrounding environment. Therefore, the embodiments sense the change in the characteristics of the adhesive member 210 accommodated in the discharge unit 220 or the adhesive member 210 discharged from the discharge unit 220, and control the discharge conditions of the discharge unit 220 based on this.

[0088] Therefore, the following description will be made for the case where the adhesive member 210 is a two-component adhesive member. However, the embodiments are not limited thereto, and the adhesive member 210 accommodated in the discharge unit 220 and / or discharged from the discharge unit 220 may be a one-component adhesive member instead of a two-component adhesive member.

[0089] The adhesive member 210 may include a first material corresponding to the main agent and a second material corresponding to the curing agent. The first material may be referred to as an epoxy resin corresponding to the main agent, and the second material may be referred to as a curing agent for polymerizing the main agent.

[0090] The first material of the adhesive member 210 may refer to an epoxy resin corresponding to the main agent. The first material may enable the adhesive member 210 to have an adhesive strength above a certain level through curing and adhesion.

[0091] The type of the first material is not particularly limited as long as it includes at least two or more reactive groups. Specifically, the first material may include reactive groups that meet and react with the second material. For example, the reactive groups contained in the first material may include epoxy groups or amine groups derived from epoxy groups. The reactive groups may also be expressed as crosslinking agents, adhesives, functional groups, end groups, reactive groups, etc.

[0092] Specifically, the first material can be any one of bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, phenol novolac type epoxy resin, cresol novolac type epoxy resin, bisphenol A novolac type epoxy resin, bisphenol F novolac type epoxy resin, alicyclic epoxy resin, glycidyl ester type epoxy resin, glycidyl amine epoxy resin, hydantoin type epoxy resin, isocyanate type epoxy resin, aliphatic chain epoxy resin, and terminal amine modified epoxy resin.

[0093] The second material can be a material for polymerizing the first material. For example, the first material can be a low molecular weight material before encountering the second material. In addition, the first material can polymerize by encountering and reacting with the second material. Therefore, when the first material and the second material encounter and react, the mixed material containing the first material and the second material can be a polymerized polymer material. Specifically, when the first material and the second material are mixed, the amine group corresponding to the reactive group and the epoxy group encounter and react. In this case, when the amine group and the epoxy group encounter and react with each other, the molecular weight of the polymer material increases, and the properties of the polymer material can change with the increase in molecular weight.

[0094] There is no particular limitation on the type of the second material, and for example, it can include amine-based curing agents, phenol-based curing agents, acid anhydride (also known as anhydride, an oxide formed by dehydrating an acid from an inorganic acid or by condensing a carboxylic acid group from an organic acid to separate a water molecule) - based curing agents, hydrazide-based curing agents, dicyandiamide, etc.

[0095] In addition, examples of the amine-based curing agent include polyoxyalkylene polyamine, polyamide, acylaminoamine, aliphatic amine, tertiary amine, araliphatic amine, alicyclic amine, aromatic amine, isophorone diamine, etc. In addition, the phenol-based curing agents include phenol novolac, cresol novolac, bisphenol A novolac, and halogenated compounds of novolac resin. These can be used alone or in combination of two or more. In addition, examples of the acid anhydride curing agent can include at least one selected from the group consisting of methylhexahydrophthalic anhydride, methyltetrahydrophthalic anhydride, methyl-5-norbornene-2,3-dicarboxylic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, dodecyl succinic anhydride, phthalic anhydride, and succinic anhydride.

[0096] Preferably, the first material of the embodiment can be DGEBA (diglycidyl ether of bisphenol A, bisphenol A type liquid epoxy resin) represented by the following Chemical Formula 1, and the second material can be 1-(2-aminoethyl)piperazine represented by the following Chemical Formula 2.

[0097] [Chemical Formula 1]

[0098]

[0099] [Chemical Formula 2]

[0100]

[0101] In addition, the adhesive member 210 may further include a filler. The filler may be further added to the first material and the second material to improve the mechanical properties of the adhesive member 210. The filler may have functions such as cost reduction, reduction of the thermal expansion rate, reduction of the curing shrinkage rate, control of heat generation during curing, improvement of adhesiveness, imparting thixotropic properties, imparting flame retardancy, imparting chemical resistance, improvement of thermal conductivity, improvement of mechanical strength, improvement of electrical properties, and improvement of wear resistance.

[0102] The adhesive member 210 as described above may be accommodated in the discharge unit 220. In addition, the adhesive member 210 may be discharged to the workpiece 110 through the discharge unit 220.

[0103] For this purpose, the discharge unit 220 may provide an accommodation space for accommodating the adhesive member 210. At this time, if the adhesive member 210 is set as a one-component adhesive member, the accommodation space of the discharge unit 220 may be set as one area and may not be divided into multiple areas. However, if the adhesive member 210 is set as a two-component adhesive member, the accommodation space of the discharge unit 220 may be divided into multiple areas.

[0104] For example, referring to Figure 2 , the accommodation space of the discharge unit 220 may be divided into multiple areas for respectively accommodating the first material and the second material of the adhesive member 210.

[0105] For example, the discharge unit 220 may include a first area 221, a second area 222, and a third area 223. Specifically, the discharge unit 220 may correspond to a syringe barrel divided into multiple areas for accommodating the adhesive member 210. Therefore, the discharge unit 220 may also be referred to as the syringe barrel 220.

[0106] The first area 221 of the syringe barrel 220 may provide a space for accommodating the first material of the adhesive member 210. The first area 221 may be separated from the second area 222.

[0107] The second area 222 of the syringe barrel 220 may provide a space for accommodating the second material of the adhesive member 210. The second area 222 may be separated from the first area 221.

[0108] The first material is accommodated in the first region 221 of the syringe 220, and the second material is accommodated in the second region 222 of the syringe 220. In addition, in the state where the first material is accommodated in the first region 221 of the syringe 220 and the second material is accommodated in the second region 222 of the syringe 220, the first material and the second material do not meet each other.

[0109] In addition, the syringe 220 further includes a third region 223. The third region 223 can communicate with the first region 221 and the second region 222 respectively. For example, the third region 223 can be a region where the first material accommodated in the first region 221 and the second material accommodated in the second region 222 meet. For example, the third region 223 can be a region where the first material in the first region 221 and the second material in the second region 222 are mixed with each other.

[0110] That is to say, the two-component adhesive member can be respectively accommodated in the first region 221 and the second region 222 of the discharge unit 220 corresponding to the syringe 220. In addition, when it is necessary to discharge the adhesive member 210 to the workpiece 110, the first material and the second material can move to the third region 223 and be mixed with each other. In addition, the discharge unit 220 may further include a needle 224, and the mixed material in the third region 223 can be discharged to the workpiece 110 through the needle 224 of the discharge unit 220.

[0111] For example, the discharge unit 220 of the embodiment can be a dispenser equipped with a needle-type syringe for discharging the adhesive member 210, but is not limited thereto.

[0112] The two-component adhesive member as described above can separately enter the first region 221 and the second region 222 of the discharge unit 220, be mixed in the third region 223, and then be discharged to the workpiece 110 through the needle 224.

[0113] Although not shown in the figure, the discharge unit 220 may include an air inlet passage provided at the upper part of the syringe. In addition, compressed air can be introduced into the discharge unit 220 through the air inlet passage. The intensity of the compressed air can be controlled by a control unit to be described later. In addition, the discharge amount of the adhesive member 210 discharged through the needle 224 of the discharge unit 220 can be controlled by the intensity of the compressed air adjusted by the control unit.

[0114] At this time, the two-component adhesive member set as the adhesive member 210 is a room-temperature curing adhesive member. That is to say, the two-component adhesive member can be cured by the reaction of the first material of the main agent and the second material of the curing agent at room temperature.

[0115] Here, "room temperature" may specifically refer to the temperature in a state where it is not heated or cooled. For example, room temperature may refer to a temperature within the range of 10°C to 30°C. Specifically, room temperature may refer to a temperature above 15°C, above 18°C, above 20°C, or above 23°C and below 27°C.

[0116] In addition, the two-component adhesive member is room temperature curable, so the first material and the second material can meet and react with each other at room temperature. In addition, the properties of the adhesive member 210 as a mixture of the first material and the second material can change according to the degree of reaction between the first material and the second material. Here, the properties of the adhesive member 210 may refer to the viscosity of the adhesive member 210. For example, the properties of the adhesive member 210 may refer to the degree of curing of the adhesive member 210.

[0117] As described above, the first material and the second material can meet and react in the third region 223 of the discharge unit 220, and the viscosity or degree of curing, which are the properties of the adhesive member 210 mixed in the third region 223, may change over time.

[0118] At this time, if the adhesive member 210 mixed in the third region 223 of the discharge unit 220 is used in a short period of time or in a continuous process, the viscosity or degree of curing of the adhesive member 210 in the third region 223 may not change significantly, and thus, the discharge amount of the adhesive member 210 may not change significantly.

[0119] However, the adhesive member 210 accommodated in the discharge unit 220 is usually used for more than 24 hours. In addition, during the process of discharging the adhesive member 210, due to reasons such as inspecting other equipment, the discharge process may not be carried out for a certain period of time. In this case, the adhesive member 210 may be set in the mixed state in the third region 223 of the discharge unit 220 for more than a certain period of time. In addition, the viscosity or degree of curing of the adhesive member 210 set in the third region 223 of the discharge unit 220 may change over time.

[0120] In addition, not only may the viscosity or degree of curing of the adhesive member 210 accommodated in the third region 223 change, but also the viscosity or degree of curing of the adhesive member 210 discharged through the needle 224 of the discharge unit 220 may change. For example, the needle 224 contains metal. Then, the adhesive member 210 discharged from the end of the needle 224 containing metal may meet the air, thereby increasing the reactivity of the adhesive member 210, and thus the viscosity or degree of curing of the adhesive member 210 may change.

[0121] At this time, if the viscosity or degree of curing of the adhesive member 210 changes, the discharge amount of the adhesive member 210 discharged from the discharge unit 220 under the same discharge conditions may change.

[0122] For example, the discharge amount of the adhesive member 210 discharged in a state of high viscosity or high degree of curing may be smaller than the discharge amount of the adhesive member 210 discharged in a state of low viscosity or low degree of curing.

[0123] Therefore, a constant discharge amount of the adhesive member 210 should always be discharged from the discharge unit 220. However, the viscosity or degree of curing of the adhesive member 210 changes according to the degree of reaction between the first material and the second material of the adhesive member 210, so the discharge amount of the adhesive member 210 discharged from the discharge unit 220 changes.

[0124] Therefore, the embodiment senses changes in the characteristics of the adhesive member 210 accommodated in the third region 223 of the discharge unit 220 and / or the adhesive member 210 discharged from the needle 224 of the discharge unit 220, and controls the discharge conditions of the adhesive member 210 according to the sensing result.

[0125] To this end, the discharge device 200 of the embodiment may include a sensing unit 230.

[0126] The sensing unit 230 may sense the characteristics of the adhesive member 210. Specifically, the sensing unit 230 may sense the viscosity of the adhesive member 210. The sensing unit 230 may sense the degree of curing of the adhesive member 210. To this end, the sensing unit 230 may sense the state of the reactive groups provided in the adhesive member 210.

[0127] That is, the characteristics of the adhesive member 210 may be the state of the reactive groups of the adhesive member 210, which may be related to the viscosity or degree of curing of the adhesive member 210. Therefore, the embodiment detects the state of the reactive groups of the adhesive member 210, and detects characteristics such as the viscosity or degree of curing of the adhesive member 210 based on the correlation between the state of the reactive groups of the adhesive member 210 and the viscosity and / or degree of curing of the adhesive member 210.

[0128] To this end, the sensing unit 230 may use the FT-IR (Fourier Transform Infrared) analysis method and use it to sense the characteristics of the adhesive member 210.

[0129] Here, the FT-IR (Fourier Transform Infrared) analysis method is a method of analyzing the characteristics of a sample by using infrared rays (IR) irradiated onto the sample. When infrared rays are irradiated onto the sample, the molecules in the sample absorb infrared rays of a specific frequency and vibrate due to the infrared rays. In addition, this can be expressed as a characteristic infrared spectrum corresponding to the energy of the molecular vibration in the sample. Therefore, by analyzing the infrared spectrum, information about the molecules in the sample can be obtained, and various information contained in the spectrum can be utilized.

[0130] In addition, the sensing unit 230 may include a detector 230a for sensing. The detector 230a may be a sensing mechanism for sensing the characteristics of the adhesive member 210 without changing the characteristics of the adhesive member 210 as the measurement target. For example, the detector 230a may be a non-contact sensing mechanism.

[0131] For example, the detector 230a of the sensing unit 230 may include a first detector 230a1 that senses the characteristics of the adhesive member 210 accommodated in the third region 223 of the syringe of the discharging unit 220. As another example, the detector 230a may include a second detector 230a2 that senses the characteristics of the adhesive member 210 discharged through the needle 224 of the discharging unit 220.

[0132] At this time, the detector 230a of the sensing unit 230 according to the embodiment may include only one of the first detector 230a1 and the second detector 230a2, or may include both the first detector 230a1 and the second detector 230a2.

[0133] In addition, the sensing unit 230 may further include a connection line 230b that electrically connects the detector 230a and the sensing unit 230. The connection line 230b is electrically connected to the detector 230a, and information obtained from the detector 230a may be transmitted to the sensing unit 230 through the connection line 230b. Here, the connection line 230b may be set as an optical fiber, but is not limited thereto.

[0134] Specifically, the viscosity or degree of curing of the adhesive member 210 may vary according to the degree of reaction between the first material and the second material. For example, the viscosity or degree of curing may also increase as the degree of mutual reaction between the first material and the second material increases. In addition, the degree of mutual reaction between the first material and the second material may be confirmed based on the states of the reactive groups provided in the first material and the second material.

[0135] For example, when the degree of reaction between the first material and the second material is low (for example, when no reaction occurs), reactive groups of a first strength exist in the adhesive member 210. In addition, when the first material and the second material react with each other, the reactive groups provided in the adhesive member 210 are reduced to a second strength lower than the first strength.

[0136] Therefore, the embodiment may sense the strength of the reactive groups of the adhesive member 210 and sense the viscosity or degree of curing of the adhesive member 210 based on the strength of the reactive groups of the adhesive member 210. The correlation between the strength of the reactive groups and the viscosity / curing degree of the adhesive member 210 is described in more detail below.

[0137] For this purpose, refer to Figure 3, the sensing unit 230 may include an output unit 231, a receiving unit 232, and an acquisition unit 233.

[0138] The output unit 231 may include an infrared light source. That is, the output unit 231 may be referred to as an infrared light source generation unit that generates an infrared light source. The output unit 231 may irradiate an infrared light source onto the sensing target.

[0139] In one embodiment, the output unit 231 may irradiate an infrared light source onto a third region 223 of the syringe barrel of the discharging unit 220.

[0140] In another embodiment, the output unit 231 may irradiate an infrared light source onto the adhesive member 210 discharged through the needle 224 of the discharging unit 220.

[0141] At this time, the output unit 231 may irradiate an infrared light source of a specific wavelength band. The infrared light source may be near-infrared light, or alternatively, mid-infrared light.

[0142] Preferably, the infrared light source irradiated from the output unit 231 of the embodiment may be near-infrared light. That is, the adhesive member 210 may contain fillers. In this case, when the output unit 231 irradiates mid-infrared light, the energy of the fillers may be reflected in the spectrum obtained from the sensing unit 230. Therefore, noise may be included in the peaks corresponding to the reactive groups in the infrared spectrum obtained from the sensing unit 230.

[0143] In contrast, when the output unit 231 uses near-infrared light, the energy of the fillers may not be reflected in the infrared spectrum obtained from the sensing unit 230, so the accuracy of the peaks corresponding to the reactive groups of the adhesive member 210 can be improved. Specifically, when the output unit 231 uses near-infrared light, quantitative analysis of the reactive groups provided in the adhesive member 210 can be performed using the spectrum sensed by the sensing unit 230.

[0144] The receiving unit 232 may receive the infrared light after the action of the adhesive member 210.

[0145] In one embodiment, the receiving unit 232 may receive the reflected light reflected by the adhesive member 210.

[0146] In another embodiment, the receiving unit 232 may receive the transmitted light transmitted through the adhesive member 210.

[0147] The acquisition unit 233 may obtain a characteristic infrared spectrum by causing the molecules in the adhesive member 210 to vibrate using the reflected light or transmitted light received by the receiving unit 232.

[0148] For example, referring to Figure 4, the infrared spectrum can be expressed as absorbance according to wavenumber. In addition, the embodiment can sense the state of the reactive group by using the absorbance at a specific frequency to be analyzed in the infrared spectrum. At this time, when the sensing unit 230 of the embodiment senses the state of the adhesive member 210 accommodated in the third region 223 of the discharging unit 220, the energy of the material of the syringe barrel constituting the discharging unit 220 can be reflected in the infrared spectrum acquired by the acquiring unit 233. At this time, Figure 4 (A) in shows the infrared spectrum measured when the adhesive member 210 is not provided in the syringe barrel of the discharging unit 220. In addition, Figure 4 (B) in shows the infrared spectrum measured when the adhesive member 210 is provided in the syringe barrel of the discharging unit 220. Referring to Figure 4 the infrared spectrum of (B) in, compared with Figure 4 the infrared spectrum of (A) in, the area or intensity of the intensity in the specific wavelength band (C) corresponding to the reactive group contained in the adhesive member 210 may change, and based on this, the characteristics of the adhesive member 210 accommodated in the syringe barrel of the discharging unit 220 can be sensed. Accordingly, the sensing unit 230 can obtain an infrared spectrum representing the characteristics of the adhesive member 210 discharged through the needle 224 of the discharging unit 220, and based on this, the characteristics of the adhesive member 210 can be detected by using the area or intensity of the intensity in the specific wavelength band of the infrared spectrum. This will be described in more detail below.

[0149] The discharging device of the embodiment includes a memory unit 240. The memory unit 240 can store the information required for the operation of the discharging device. The memory unit 240 can store the information generated during the operation of the discharging device.

[0150] Preferably, the memory unit 240 can store the program for processing or controlling the control unit 250 and various information for the overall operation of the discharging device through the control unit 250. For example, the memory unit 240 can store the correlation information between the infrared spectrum sensed by the sensing unit 230 and the characteristics of the adhesive member 210. For example, the memory unit 240 can store the correlation information between the intensity of a specific frequency band in the infrared spectrum and the viscosity or degree of curing of the corresponding adhesive member 210.

[0151] In terms of hardware, the memory unit 240 can be various storage devices, such as ROM, RAM, EPROM, flash drive, hard disk drive, etc.

[0152] The control unit 250 can control the overall operation of the discharging device.

[0153] The control unit 250 controls the discharging conditions of the discharging unit 220 so that a specific amount of the adhesive member 210 is discharged onto the workpiece 110.

[0154] In addition, the control unit 250 periodically senses information about the characteristics of the adhesive member 210 through the sensing unit 230. For example, the control unit 250 obtains the infrared spectrum of the adhesive member 210 through the sensing unit 230. At this time, the obtained spectrum may or may not reflect the energy of the material properties of the syringe of the discharging unit 220 according to the arrangement position of the detector 230a of the sensing unit 230.

[0155] The control unit 250 may sense the characteristics of the adhesive member 210 sensed based on the infrared spectrum sensed by the sensing unit 230, and control the discharging conditions of the discharging unit 220 according to the characteristics of the adhesive member 210. Here, the discharging conditions may include the discharging pressure. However, the embodiments are not limited thereto, and the discharging conditions may include the discharging time. Hereinafter, the discharging conditions will be described as the discharging pressure.

[0156] For example, the control unit 250 may use the infrared spectrum obtained by the sensing unit 230 to measure the viscosity or the degree of curing of the adhesive member 210.

[0157] In addition, when the measured viscosity or the degree of curing changes, the control unit 250 may adjust the discharging pressure of the discharging unit 220. For example, when a high viscosity or a high degree of curing is measured, the control unit 250 may increase the discharging pressure of the discharging unit 220.

[0158] Specifically, the control unit 250 may use the infrared spectrum obtained by the sensing unit 230 to detect information about the reactive groups contained in the adhesive member 210. For example, the control unit 250 may detect the area or the height of the intensity in a specific wavelength band corresponding to the reactive groups contained in the adhesive member 210 based on the infrared spectrum. In addition, the detected information may refer to the number of reactive groups contained in the adhesive member 210. Thereafter, when the amount of the reactive groups contained in the detected adhesive member 210 decreases, the control unit 250 increases the discharging pressure of the discharging unit 220.

[0159] The embodiments may measure the viscosity or the degree of curing of the adhesive member in real time. For example, the embodiments may measure the viscosity or the degree of curing of the adhesive member according to the state of the reactive groups contained in the adhesive member. Therefore, the embodiments may accurately analyze the characteristics of the adhesive member in real time. In addition, the embodiments may quantitatively predict the changes when the adhesive member stands still.

[0160] In addition, the embodiments can control the discharge conditions of the discharge unit according to changes in the viscosity or degree of curing of the adhesive member. For example, when the viscosity or degree of curing of the adhesive member increases, the embodiments can correspondingly increase the discharge pressure of the discharge unit. Therefore, the embodiments can improve the discharge process characteristics of the adhesive member, and thus can stably dispose the bonding target on the adhesive member. Therefore, the embodiments can improve product reliability and further improve product yield.

[0161] In addition, regardless of changes in time or temperature, the embodiments can discharge a constant amount of the adhesive member to the workpiece. Therefore, the embodiments can improve product reliability.

[0162] Hereinafter, the change in the viscosity or degree of curing of the adhesive member over time and the correlation between the viscosity or degree of curing of the adhesive member 210 and the reactive groups contained in the adhesive member 210 are described.

[0163] Figure 5 is a diagram for explaining the reaction between the first material and the second material of the adhesive member according to an embodiment, Figure 6 is a diagram for explaining the change in the viscosity of the adhesive member over time according to an embodiment, Figure 7 is a diagram showing the change in the state of the reactive groups of the adhesive member over time, Figure 8 is a diagram showing the relationship between the number of reactive groups and the viscosity of the adhesive member according to an embodiment.

[0164] Referring to Figure 5 , the adhesive member 210 of the embodiments can include the first material and the second material as described above. In addition, each of the first material and the second material constituting the adhesive member 210 can include reactive groups. At this time, the reactive groups can vary according to the types of the first material and the second material constituting the adhesive member 210.

[0165] For example, the first material can be provided with an epoxy group (O, Figure 5 A in ), and the second material can be provided with an amine group (NH2, Figure 5 B in ).

[0166] In this case, when the first material and the second material meet, the epoxy group (O, Figure 5 A in ) of the first material and the amine group (NH2, Figure 5 B in ) of the second material can react with each other. In addition, when the epoxy group (O, Figure 5 A in ) of the first material and the amine group (NH2, Figure 5 B in ) of the second material react with each other, the amine group (NH2, Figure 5 B in ) of the second material becomes, for example, NH( Figure 5The state of C) in

[0167] Specifically, the material constituting the adhesive member 210 contains amine groups (NH2). In this case, the amine groups (NH2) become NH according to the reaction degree of the adhesive member 210. Therefore, the fact that the amine groups (NH2) become NH may mean a relatively high degree of interaction between the first material and the second material in the adhesive member 210. In addition, the fact of a relatively high reaction degree means an increase in the viscosity or curing degree of the adhesive member 210.

[0168] In summary, the fact that the amine groups (NH2), which are the reactive groups provided in the adhesive member 210, become NH means that the viscosity or curing degree of the adhesive member 210 has increased. In addition, a decrease in the number of amine groups (NH2) provided in the adhesive member 210 may also mean that the viscosity or curing degree of the adhesive member 210 has increased.

[0169] In addition, as an example, the reactive groups provided in the adhesive member 210 are amine groups (NH2), but it is not limited thereto. For example, depending on the types of the first material and the second material, the reactive groups of the adhesive member 210 may be thiol groups (SH) instead of amine groups (NH2).

[0170] Refer to Figure 6 , the viscosity of the adhesive member 210 can change over time. For example, the adhesive member 210 can have a viscosity and / or curing degree that increases over time. That is, as the time elapsed from the time when the first material and the second material meet increases, the adhesive member 210 can have an increased viscosity and / or an increased curing degree. In addition, after a specific time (e.g., 5 hours) has elapsed from the time when the first material and the second material meet, the viscosity and / or curing degree of the adhesive member 210 hardly changes. That is, as the time elapsed from the time when the first material and the second material meet increases, the number of reactive groups provided in the adhesive member 210 may decrease, and it is confirmed that the viscosity and / or curing degree of the adhesive member increases as the number of reactive groups decreases. Therefore, the embodiment ensures correlation data based on the decrease in the number of reactive groups of the adhesive member over time and the viscosity of the adhesive member corresponding to the decrease in the number of reactive groups, and uses the correlation data to measure the viscosity and / or curing degree of the adhesive member.

[0171] In addition, refer to Figure 7 , the number of reactive groups provided in the adhesive member 210 may decrease over time. That is, the viscosity of the adhesive member 210 increases over time, and further, the number of reactive groups decreases. The number of reactive groups can be expressed as the absorbance in the infrared spectrum.

[0172] That is, in the embodiment, it was confirmed how the number of reactive groups provided in the adhesive member 210 changes over time. At this time, the embodiment shows the infrared spectrum obtained from the adhesive member 210 containing amine groups (NH2) over time.

[0173] At this time, the amine groups (NH2) can react at a wavelength band of 6625 (cm-1) in the infrared spectrum. Therefore, the information on the amine groups (NH2) contained in the adhesive member 210 can be confirmed by analyzing the information on the 6625 (cm-1) wavelength band in the infrared spectrum.

[0174] In addition, as Figure 7 shown, it was confirmed that the number of amine groups (NH2) contained in the adhesive member 210 gradually decreases over time.

[0175] For example, it can be seen that the absorbance of the 6625 (cm-1) wavelength band in the infrared spectrum sensed at the first time (T1) is approximately 1.500.

[0176] For example, it can be seen that the absorbance of the 6625 (cm-1) wavelength band in the infrared spectrum sensed at the second time (T2) after the first time (T1) is approximately 1.475.

[0177] For example, it can be seen that the absorbance of the 6625 (cm-1) wavelength band in the infrared spectrum sensed at the third time (T3) after the second time (T2) is approximately 1.465.

[0178] For example, it can be seen that the absorbance of the 6625 (cm-1) wavelength band in the infrared spectrum sensed at the fourth time (T4) after the third time (T3) is approximately 1.455.

[0179] For example, it can be seen that the absorbance of the 6625 (cm-1) wavelength band in the infrared spectrum sensed at the fifth time (T5) after the fourth time (T4) is approximately 1.445.

[0180] For example, it can be seen that the absorbance of the 6625 (cm-1) wavelength band in the infrared spectrum sensed at the sixth time (T6) after the fifth time (T5) is approximately 1.440.

[0181] That is, over time (e.g., from T1 to T6), the degree of reaction of the first and second materials contained in the adhesive member 210 may increase. In addition, as the degree of reaction increases, the number of reactive groups provided in the adhesive member 210 may decrease. Therefore, when the number of reactive groups decreases, the absorbance of the wavelength band corresponding to the reactive groups in the sensed infrared spectrum may decrease. In addition, embodiments may measure the viscosity or degree of curing of the adhesive member 210 based on the absorbance of the wavelength band corresponding to the reactive groups in the infrared spectrum.

[0182] In addition, as Figure 8 shown, embodiments have confirmed the relationship between the number of amine groups (NH2) contained in the adhesive member 210 and the viscosity of the corresponding adhesive member 210.

[0183] As Figure 8 shown, when the number of reactive groups is small, it has been confirmed that the viscosity of the corresponding adhesive member 210 is high. In addition, when the number of reactive groups is large, it has been confirmed that the corresponding viscosity is low.

[0184] Therefore, embodiments store the correlation information between the detected amount of reactive groups in the adhesive member 210 and the viscosity of the corresponding adhesive member 210 in the memory unit 240. The control unit 250 controls to obtain the infrared spectrum of the adhesive member 210 through the sensing unit 230 according to a specific period. Here, the period may be 3 seconds, but is not limited thereto.

[0185] In addition, the control unit 250 may analyze the information of the wavelength band corresponding to the reactive groups of the adhesive member 210 in the infrared spectrum obtained by the sensing unit 230, and measure the viscosity or degree of curing of the adhesive member 210 based on this information. Therefore, the control unit 250 may adjust the discharge pressure of the discharge unit 220 based on the viscosity or degree of curing.

[0186] Hereinafter, the structural features of the sensing unit 230 of the embodiments will be specifically described.

[0187] Figure 9 is a schematic diagram showing the arrangement structure of detectors according to one embodiment, Figure 10 is a schematic diagram showing the arrangement structure of detectors according to another embodiment, Figure 11 is a diagram illustrating the structure of detectors and connection wirings according to an embodiment.

[0188] Referring to Figure 9, the detector 230a may be disposed adjacent to the discharge unit 220. The detector 230a may not be in contact with the discharge unit 220 and may sense information indicating the characteristics of the adhesive member 210 accommodated in the discharge unit 220 at a position spaced apart from the discharge unit 220 by a predetermined distance. At this time, the detector 230a may be arranged to face the discharge unit 220 at a position spaced apart from the discharge unit 220 by a predetermined distance. At this time, the detector 230a may be arranged to face the discharge unit 220 within a predetermined angular range with respect to the discharge unit 220. At this time, the detector 230a may be set at an angle of 90° (angle 230aD1) with respect to the syringe barrel of the discharge unit 220. In addition, the detector 230a may be set at a specific inclination angle with respect to the syringe barrel of the discharge unit 220. For example, the detector 230a may be set at an angle of 90° (angle 230aD1) to -30° (angle 230aD2), or at an angle of +30° (angle 230aD3) with respect to the syringe barrel of the discharge unit 220. That is, the detector 230a may be arranged at a specific interval distance from the syringe barrel and at an angle of 60° to 120° with respect to the syringe barrel.

[0189] At this time, if the setting angle of the detector 230a is outside the above angle range, it may be difficult to ensure quantitative sensing of the characteristics of the adhesive member 210 contained in or discharged from the discharge unit 220. In addition, it may be difficult to ensure the intensity for the sensing operation.

[0190] In addition, the shape of the detector 230a of the embodiment may have a linear shape as shown in Figure 9 and, differently, may have a bent shape as shown in Figure 10 . At this time, when the detector 230a has a bent shape, the bending angle of the bent portion may be bent within the angular range described with reference to the syringe barrel of the discharge unit 220 in Figure 9 .

[0191] For example, with reference to Figure 10, the detector 230aD4 can have a bent shape. For example, the detector 230aD4 can have a first part 230aD41 and a second part 230aD42 that is bent at a specific inclination angle with respect to the first part 230aD41. The first part 230aD41 of the detector 230aD4 can be arranged at a 90° inclination angle with respect to the syringe barrel of the discharge unit 220. In addition, the second part 230aD42 of the detector 230aD4 can have a predetermined inclination angle (θ) with respect to the first part 230aD41. In addition, the inclination angle (θ) between the first part 230aD41 and the second part 230aD42 can be greater than 0° and less than 30°. That is, the inclination angle of the second part 230aD42 of the detector 230aD4 with respect to the syringe barrel of the discharge unit 220 can satisfy the range of 60° to 120°. At this time, if the inclination angle (θ) of the first part 230aD41 is outside the range of 0° to 30°, or if the inclination angle of the second part 230aD42 with respect to the syringe barrel is outside the range of 60° to 120°, it may be difficult to ensure quantitative sensing of the characteristics of the adhesive member 210 accommodated in or discharged from the discharge unit 220. In addition, it may be difficult to ensure the strength for the sensing operation.

[0192] At this time, the second part 230aD42 can be provided with a fixed bending angle with respect to the first part 230aD41, or differently, the bending angle with respect to the first part 230aD41 can be selectively changed by separate control.

[0193] In addition, referring to Figure 11 , the detector 230a can have a specific length L1 in the horizontal direction. The length L1 of the detector 230a can have a range of 10 cm to 50 cm. If the length L1 of the detector 230a is less than 10 cm, it may be difficult to accurately sense the characteristics of the adhesive member contained in the syringe barrel, and if the length L1 of the detector 230a is greater than 50 cm, it may be difficult to use due to space constraints in the device.

[0194] In addition, the connection line 230b connecting the detector 230a and the sensing unit 230 can have a specific length L2. At this time, the length L2 of the connection line 230b can have a range of 1 m to 6 m. If the length L2 of the connection line 230b is less than 1 m, the movement of the sensing unit 230 may be restricted, and this may cause movement restrictions, making it difficult to apply to the process. In addition, if the length L2 of the connection line 230b exceeds 6 m, the signal sensitivity may decrease, so it may be difficult to perform accurate analysis.

[0195] In addition, the detector 230a may be equipped with a material that has relatively excellent thermal durability and chemical resistance compared to plastic. For example, the detector 230a may be equipped with SUS or aluminum, but is not limited thereto.

[0196] In addition, the sensing unit 230 described above is disposed at a position separated from the discharging unit 220, and when it detects that the adhesive member is discharged from the discharging unit 220, it can be selectively installed at a specified position for sensing the characteristics of the adhesive member. To this end, the embodiment may further include an identification unit such as a separate camera, and the identification unit may photograph the discharging unit 220. When it recognizes that the polymer material has been discharged based on the photographed image, or when it recognizes a shape corresponding to the polymer material, it can be set at the specified position and perform the sensing operation.

[0197] Figure 12 is a flowchart showing step by step the control method of the discharging device according to the embodiment.

[0198] Refer to Figure 12 , the embodiment stores relationship information (S110) of the intensity (e.g., area, detection amount, or height of the peak) of the reactive groups contained in the adhesive member 210 and the characteristics of the adhesive member 210 corresponding to the intensity of the reactive groups. The characteristics of the adhesive member 210 may represent the viscosity or degree of curing of the adhesive member 210.

[0199] Next, the sensing unit 230 irradiates infrared rays to the adhesive member 210 accommodated in or discharged from the discharging unit 220 (S120).

[0200] After that, the sensing unit 230 obtains an infrared spectrum based on the infrared radiation. Then, the sensing unit 230 may transmit the obtained infrared spectrum to the control unit 250.

[0201] Next, the control unit 250 may analyze the infrared spectrum to measure the characteristics of the adhesive member 210 (S130). For example, the control unit 250 may analyze the area of a specific wavelength band or the height of the peak in the infrared spectrum. Then, the control unit 250 may measure the detection amount of the reactive groups provided in the adhesive member 210 based on the area of the specific wavelength band or the height of the peak. In addition, the control unit 250 may measure the viscosity or degree of curing of the adhesive member 210 based on the detection amount of the reactive groups.

[0202] Next, the control unit 250 may determine whether the measured viscosity or degree of curing has changed (S140).

[0203] In addition, if the viscosity or degree of curing has changed, the control unit 250 may adjust the discharge conditions of the discharge unit 220 corresponding to the amount of change in the viscosity or degree of curing (S150). For example, the control unit 250 may increase the discharge pressure of the discharge unit 220 in proportion to the amount of change in the viscosity or degree of curing of the adhesive member 210.

[0204] Embodiments may measure the viscosity or degree of curing of the adhesive member in real time. For example, embodiments may measure the viscosity or degree of curing of the adhesive member based on the state of the reactive groups contained in the adhesive member. Thus, embodiments may accurately analyze the characteristics of the adhesive member in real time. In addition, embodiments may quantitatively predict the changes when the adhesive member is left standing.

[0205] In addition, embodiments may control the discharge conditions of the discharge unit according to the change in the viscosity or degree of curing of the adhesive member. For example, when the viscosity or degree of curing of the adhesive member increases, embodiments may correspondingly increase the discharge pressure of the discharge unit.

[0206] Thus, embodiments may improve the discharge process characteristics of the adhesive member.

[0207] In addition, embodiments may discharge a constant amount of the adhesive member to the workpiece regardless of changes in time or temperature.

[0208] Thus, embodiments may improve product reliability.

[0209] The features, structures, effects, etc. described in the above embodiments are included in at least one embodiment and are not necessarily limited to one embodiment. In addition, the features, structures, effects, etc. shown in each embodiment may be combined or modified by those of ordinary skill in the art to which the embodiments pertain for other embodiments. Therefore, the content related to such combinations and variations should be construed as being included within the scope of the embodiments.

[0210] In the foregoing, embodiments have been mainly described, but this is merely an example and does not limit the embodiments, and those of ordinary skill in the art to which the embodiments pertain will understand that various modifications and applications not shown above may be made without departing from the basic features of the present embodiments. For example, each component specifically shown in the embodiments may be implemented by modification. In addition, the differences related to such modifications and applications should be construed as being included within the scope of the embodiments set forth in the appended claims.

Claims

1. A discharging device, comprising: A discharging unit configured to accommodate and discharge a polymer material; A sensing unit configured to sense properties of the polymer material; And A control unit configured to control a discharging pressure of the discharging unit according to a signal sensed from the sensing unit, Wherein, the sensing unit includes: An output unit configured to output infrared light; A receiving unit configured to receive reflected light of the infrared light reflected from the polymer material; and A detector configured to irradiate the infrared light provided from the output unit onto the polymer material and transmit the reflected light reflected from the polymer material to the receiving unit.

2. The discharge device according to claim 1, wherein, The discharging unit includes a syringe barrel configured to accommodate the polymer material and a needle configured to discharge the polymer material.

3. The discharge device according to claim 2, wherein, The detector includes at least one of a first detector and a second detector, the first detector being configured to irradiate the infrared light onto the polymer material accommodated in the syringe barrel, and the second detector being configured to irradiate the infrared light onto the polymer material discharged through the needle.

4. The discharging device according to claim 1, wherein, The detector irradiates the infrared light and receives the reflected light at a position spaced apart from the discharging unit.

5. The discharge device according to claim 4, wherein, The detector is arranged at an inclination angle within a range of 60 degrees to 120 degrees with respect to the syringe barrel.

6. The discharge device according to claim 1, wherein, The detector includes a first portion and a second portion configured to be bendable relative to the first portion.

7. The discharge device according to claim 1, wherein The sensing unit further includes a connection line connecting the detector to the output unit and the receiving unit, and Wherein, the length of the connection line is in a range of 1 m to 6 m.

8. The discharge device according to claim 1, wherein The detector is made of at least one of stainless steel and aluminum.

9. The discharging device according to any one of claims 1 to 8, wherein, The polymer material includes an adhesive member, and Wherein, the sensing unit senses information corresponding to the viscosity of the adhesive member.

10. The discharge device according to claim 9, wherein, The information corresponding to the viscosity of the adhesive member is information about reactive groups.

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