TW201402224A - Adhesive coating apparatus - Google Patents

Abstract

The present invention provides an adhesive coating apparatus which can minimize poor loading of an object to be adhered requiring adhesive coating and which can coat adhesive on the overall edges of the object to be adhered without having to reloading the object to be adhered, comprising: a loading part horizontally sucking and supporting the object to be adhered; and an edge coating part equipped with an ejection valve which is arranged opposite to the edge of the object to be adhered requiring adhesive coating such that it can eject liquid phase adhesive and perform coating along the longitudinal direction of the edge in an adhesive dispensing manner.

Description

Adhesive coating device

The present invention relates to an adhesive applicator, and more particularly, the adhesive applicator of the present invention can minimize the loading failure of an adherent object to which an adhesive is applied, and can also adhere to an object without reloading the adhesive object. The entire edge is coated with an adhesive.

Recently, an organic light emitting diode (OLED) as a display element can realize high-speed response and high luminance by using a self-luminous organic substance and does not require a backlight, and can be made thinner than an LCD. The organic light-emitting display device generates an exciton by an electron injected from one electrode and a hole injected from another electrode to form an exciton between the electrodes, and is emitted by the exciter It glows with energy.

The organic light-emitting diodes are classified into active and passive types according to the driving method. An active organic light-emitting diode (AMOLED) has a TFT element for adjusting each pixel on each pixel, and a passive organic light-emitting diode (PMOLDE: Passive Matrix OLED) is used in each of the vertical and horizontal directions. A voltage is applied to allow power to enter the intersecting pixels.

Recently, as portable display devices have been widely used, portable products using the active organic light-emitting diode (AMOLED) as a display means have been successively developed.

1 is a perspective view of a general active organic light emitting diode. As shown in FIG. 1, the active organic light-emitting diode 1 is composed of a glass substrate 2 and a protective glass (glass). The glass substrate 2 is formed with a driving circuit that protects a driving circuit formed on the glass substrate 2. Here, the cover glass 3 is adhered to the glass substrate 2 by means of a glass glue (not shown) applied to the edge of the glass substrate 2.

On the other hand, even if the glass substrate 2 and the cover glass 3 are adhered by the sealant, the impact of the active organic light-emitting diode 1 can peel off the adhesive surface of the glass substrate 2 and the cover glass 3, in order to solve the problem. A problem is that a liquid phase adhesive is additionally applied along the adhesive surface on the adhesive surface of the glass substrate 2 and the cover glass 3 to which the glass paste is adhered.

In order to apply a liquid phase adhesive to the adhesive surface of the glass substrate 2 and the cover glass 3, an adhesive-coating apparatus is used, and a typical example is the Korean Patent Publication No. 2010-0043367 (Publication Date: April 29, 2010, the name: active liquid-emitting diode liquid-phase adhesive coating method and apparatus), Korean Patent No. 2012-0021862 (publication date: March 09, 2012, name: " Non-contact type adhesive application device and coating method using the same"), Korean Patent Publication No. 2012-0051143 (Publication Date: May 22, 2012, Name: Adhesive Coating Device and Adhesive Using the Same Coating method), and Korean Laid-Open Patent Publication No. 2012-0072003 (Publication Date: July 03, 2012, title: "Non-contact Adhesive Coating Apparatus and Method").

However, in the above-mentioned Korean Laid-Open Patent, since the tens to hundreds of active organic light-emitting diodes 1 (hereinafter referred to as "adhesive objects") are arranged in a vertical row at a time, the loading place of the adhering object 1 often occurs. The resulting bad.

Further, in order to vertically load the adhering object 1 so that the adsorption block adsorbs and supports one side surface of the adhering object 1, it is impossible to apply an adhesive to the lower edge of the adhering object 1, in order to coat the lower edge of the adhering object 1. Applying the adhesive requires reloading the adhesive object 1.

An object of the present invention is to provide an adhesive applicator which can minimize the loading failure of an adherent object to which an adhesive is applied, and can be applied to the entire edge of the adhesive object without reloading the adhesive object. Agent.

The technical problem to be solved by the present invention is not limited to the technical problems mentioned above.

In order to achieve the above object, an adhesive applicator according to the present invention includes: a loading portion that horizontally adsorbs and supports an adhering object; and an edge coating portion that is provided with a jetting valve that needs to be applied and pasted. The edge of the adhering object of the agent is disposed to face each other, and the liquid phase adhesive is discharged and applied in the form of a gel along the longitudinal direction of the edge.

Specifically, the loading unit includes an adsorption stage that horizontally adsorbs and supports the adhering object, a rotary motor that rotatably supports the adsorption stage, and a cylinder shaft whose lower portion is coupled to the rotary motor and the upper portion is coupled to the lower surface of the adsorption stage.

Specifically, the rotary motor can rotate the adsorption stage by 90 degrees.

More specifically, the loading portion further includes a first transfer unit that transfers the adsorption stage in the y-axis direction; the first transfer unit includes: a first linear a motor extending along the y-axis direction; and a first slider guided along the first linear motor by operation of the first linear motor; a lower portion of the rotary motor fixedly mounted on an upper portion of the first slider.

Specifically, the edge coating portion further includes a second transfer unit that transfers the injection valve along the z-axis direction; the second transfer unit includes: a second linear motor that extends vertically along the z-axis direction; and a second slider, The second linear motor is guided by the operation of the second linear motor; the injection valve can be mounted on the second slider.

More specifically, the edge coating portion further includes a third transfer unit that transfers the injection valve along the x-axis direction; the third transfer unit includes: a third linear motor extending along the x-axis direction; and a third slider, The third linear motor is guided by the operation of the third linear motor; the back surface of the second transfer unit that transfers the injection valve along the z-axis direction can be connected to the third slider.

More specifically, the inside of the injection valve accommodates the above-described adhesive agent supplied from the outside, and the adhesive is discharged through the discharge port, and the discharge port is disposed to face the edge of the adhering object to which the adhesive is applied.

On the other hand, the adhesive application device further includes an upper coating portion that applies an adhesive in a line form on the upper portion of the adhering object; the upper coating portion includes: a discharge cylinder that does not interfere with the injection valve along the ejection The valve is guided, and the inside is accommodated with an adhesive; and the adhesive container is connected to the discharge cylinder at a lower portion thereof to supply an adhesive to the inside of the discharge cylinder; and a nozzle for discharging the adhesive contained therein is integrally provided at a lower portion of the discharge cylinder.

Moreover, the adhesive application device further includes a contaminant removing portion which can smear the adhesive microparticles which are splashed toward the periphery of the injection valve when the adhesive is discharged. The sub-cleaning portion is disposed adjacent to the upper and lower portions of the injection valve and guided along the injection valve without interfering with the injection valve.

Specifically, the contaminant removal unit is an inhaler that removes fine particles of the adhesive and is removed, or a blower that blows off the fine particles of the adhesive.

As described above, the adhesive applicator of the present invention includes a loading portion and a side coating portion, the loading portion rotatably vacuum-adsorbs an adhesive object; the side coating portion discharges the liquid phase adhesive in a dispensing form The adhesive is applied to the edge of the adhering object adsorbed by the loading portion; not only can the loading defect of the adhering object be minimized, but also the adhesive can be applied to the entire edge of the adhering object without reloading the adhesive object. Improve productivity.

Further, the adhesive application device of the present invention further includes a contaminant removing portion capable of removing the fine particles of the adhesive which are splashed toward the discharge port of the injection valve when the adhesive is discharged through the injection valve of the side application portion, thereby preventing the adhesive agent from being removed. The fine particles of the adhesive are adhered to the surface of the attached object.

Further, the adhesive applicator according to the present invention further includes an upper coating portion capable of applying an adhesive to the upper surface of the adhering object, and applying a paste to the edge of the adhering object and the upper portion of the adhering object using a single device. .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The same components in the drawings all use the same component symbol. Moreover, this specification will also omit those that may unnecessarily obscure the gist of the present invention. A detailed description of the known functions and configurations.

2 is a perspective view of the adhesive applicator according to the present invention, and the adhesive applicator 100 of the present invention includes a loading unit 110 capable of vacuum-adsorbing an adhering object 1 carried in from an upstream device (not shown); The coating unit 130 discharges the liquid phase adhesive in a dot form to apply the adhesive along the longitudinal direction of the edge of the adhering object 1 adsorbed by the loading unit 110.

First, the loading unit 110 includes an adsorption stage 112 that horizontally adsorbs and supports the adhering object 1 carried in from the upstream apparatus. As shown, the adsorption stage 112 forms a vacuum adsorption hole 114. As is well known, the vacuum adsorption holes 114 are connected to a general vacuum adsorption distribution line (not shown).

Further, the adsorption stage 112 that horizontally adsorbs and supports the adhering object 1 is rotatably disposed. To this end, the lower portion of the adsorption stage 112 is provided with a rotary motor 116, and the rotary motor 116 and the adsorption stage 112 are connected by a cylinder shaft 118. As shown in the figure, the lower portion of the cylinder shaft 118 is connected to the rotary motor 116 and the upper portion is connected to the lower surface of the adsorption stage 112.

Preferably, the rotary motor 116 uses a general direct drive motor (DIRECT DRIVE MOTOR; DD-MOTOR) that rotates the adhering object 1 by 90 degrees.

On the other hand, the loading unit 110 further includes a first transfer unit 120 that transfers the adsorption stage 112 along the front and rear of the adhesive application device 100, that is, along the y-axis direction as shown.

The first transfer unit 120 guides the adsorption stage 112, and the adsorption stage 112 can load the adhering object 1 carried by the upstream device, and the first transfer unit 120 guides the adsorption stage 112 loaded with the attached object 1 to the coating. Apply the job location. The first transfer unit 120 includes: a first linear motor 122 extending along a front-rear direction of the adhesive application device 100; and a first slider 124 along the first line by operation of the first linear motor 122 The linear motor 122 is guided. At this time, the lower portion of the rotary motor 116 is fixedly mounted on the upper portion of the first slider 124. Moreover, a linear guide 126 extending along the longitudinal direction of the first linear motor 122 is disposed on both sides of the first linear motor 122, and a linear guide is mounted on both sides of the lower surface of the first slider 124. 126 sliding linear block 128. Here, the first linear motor 122 and the linear guide 126 of the first transfer unit 120 are fixedly disposed on the upper portion of a table (not shown), which is well known.

An edge coating portion 130 is disposed on the rear side of the loading portion 110 formed as described above.

The edge application unit 130 includes a normal injection valve 132 that discharges the liquid phase adhesive to the edge side of the adherend 1 that is adsorbed and supported by the adsorption stage 112.

The inside of the injection valve 132 accommodates an adhesive supplied from the outside. Further, the adhesive agent accommodated inside the injection valve 132 is discharged through the discharge port 134 by the operation of the injection valve 132. That is, the injection valve 132 opens the discharge port 134 in a very short time in a state where pressure is applied to the adhesive contained therein, and the discharge port 134 is opened in a very short time as described above, and the liquid phase is pasted. The agent is discharged by the discharge port 134 by the pressure of the injection valve 132. At this time, the discharge port 134 of the injection valve 132 is disposed to face the edge of the adhering object 1 to which the adhesive is applied. Here, the structure of the injection valve 132 is a well-known technique, so the details thereof are omitted. Description.

On the other hand, the side coating portion 130 further includes a second transfer unit 136, along the upper and lower transfer injection valve 132 of the adhesive application device 100, that is, as shown, the injection valve 132 is transferred along the z-axis direction; The third transfer unit 142 transfers the injection valve 132 to the right and left along the adhesive application device 100, that is, the injection valve 132 is transferred along the x-axis direction as shown in the drawing.

The second transfer unit 136 adjusts the height of the edge of the discharge port 134 and the adhering object 1 while vertically guiding the injection valve 132, that is, adjusts the coating height of the adhesive, and the third transfer unit 142 guides the injection valve 132 so as to The adhesive is applied to the edge of the adherent object 1 which is horizontally adsorbed and supported. The second transfer unit 136 includes: a second linear motor 138 extending vertically along an upper side of the adhesive application device 100 along the upper side adjacent to the first transfer unit 120, that is, along the z-axis direction; and a second slider 140 The second linear motor 138 is guided along the second linear motor 138 by the operation of the second linear motor 138. Moreover, the third transfer unit 142 includes a third linear motor 144 that does not interfere with the back surface of the second transfer unit 136 and extends toward the left and right sides of the adhesive application device 100 at an upper portion adjacent to the rear of the first transfer unit 120; The three sliders 146 are guided along the third linear motor 144 by the operation of the third linear motor 144. At this time, the injection valve 132 is attached to the second slider 140, and the injection valve 132 is opposed to the adhering object 1 supported by the adsorption stage 112, and the third slider 146 is connected to the back surface of the second linear motor 138.

Preferably, the third transfer unit 142 is fixedly disposed on the sub-frame S extending from the table.

On the other hand, the adhesive applicator 100 of the present invention further includes contamination The object removing unit 150 can remove the fine particles of the adherent which are splashed toward the discharge port 134 of the injection valve 132 when the adhesive is discharged.

The contaminant removal unit 150 is disposed adjacent to the upper portion and the lower portion of the injection valve 132 so as to avoid the adhesion target 1 adsorbed and supported by the interference adsorption stage 112, and can avoid interference with the adhesion which is discharged in the dot form at the discharge port 134. The travel of the agent. Further, the contaminant removing portion 150 is fixedly mounted on the second slider 140 like the injection valve 132 so as to be guided along the injection valve 132 when the adhesive is discharged.

The contaminant removal unit 150 may be an inhaler 152a that is sucked by the fine particles of the adhesive splashed around the discharge port 134 of the injection valve 132 as shown in FIG. 6, or the adhesive fine particles are blown off as shown in FIG. One of the blowers 152b (blower). Here, the configuration of the inhaler 152a that inhales the fine particles of the adhesive and the working fluid that sucks the fine particles through the inhaler 152a are well-known techniques, and thus detailed description thereof will be omitted. Further, the configuration of the hair dryer 152b that blows off the fine particles of the adhesive and the working fluid that blows off the fine particles by the blower 152b are well-known techniques, and thus detailed description thereof will be omitted.

The contaminant removing unit 150 as described above can prevent the fine particles of the adhesive which splashed around the discharge port 134 of the injection valve 132 from sticking to the surface of the adhering object 1 when the adhesive is discharged.

On the other hand, the adhesive application device 100 of the present invention further includes an upper coating unit 160 that applies an adhesive to the upper portion of the adhering object 1 that is sucked and supported by the adsorption stage 112 of the loading unit 110. As an example, the upper coating unit 160 is formed on the glass substrate 2 of the active organic light-emitting diode (AMOLED: Active Matrix OLED, see FIG. 4) as the adhering object 1 and is protected from the glass. An adhesive is applied to the stepped portion of the cover glass 3 of the drive circuit of the substrate 2.

The upper coating unit 160 applies a liquid phase adhesive to the upper surface of the adherend 1 in a line form, and the upper coating unit 160 includes a discharge cylinder 162 in which an adhesive is accommodated, and an adhesive container 166 An adhesive is supplied to the inside of the discharge cylinder 162.

The discharge cylinder 162 is vertically fixedly attached to one side of the second slider 140 so as not to interfere with the injection valve 132 and the contaminant removal portion 150. A nozzle 164 that discharges the adhesive contained in the inside is integrally provided at a lower portion of the discharge cylinder 162, and the adhesive contained in the discharge cylinder 162 is pressurized by the air pressure flowing from the outside of the discharge cylinder 162 and is pressurized by the nozzle 164. Spit out.

On the other hand, the adhesive container 166 is disposed adjacent to the discharge cylinder 162 such that the lower portion thereof is connected to the inside of the discharge cylinder 162. The liquid phase adhesive supplied to the discharge cylinder 162 side is filled inside the adhesive container 166. Further, the adhesive filled in the inside of the adhesive container 166 is pressurized by the air pressure flowing from the outside of the adhesive container 166 and supplied to the discharge cylinder 162 side. Preferably, the discharge cylinder 162 and the adhesive container 166 operate in conjunction with each other.

The operation state of the adhesive application device 100 formed as described above will be briefly described below.

In order to receive the adhering object 1 to which the adhesive is applied from the upstream device (not shown), the first transfer unit 120 is first operated by the loading unit 110 to transfer the adsorption stage 112 to the front side of the adhesive application device 100. . Then, the pasting object 1 is loaded to the adsorption stage 112 and is At the time of adsorption support, the first transfer unit 120 is re-run and the adsorption stage 112 is transferred to the rear side of the adhesive application device 100, that is, to the coating operation position. After the adhering object 1 is transferred to the coating operation position as described above, one of the edges of the adhering object 1 faces the injection valve 132 of the side application portion 130. At this time, the discharge port 134 of the injection valve 132 faces the edge of the edge of the adherend 1 .

After the edge of the adherend 1 to which the adhesive is applied is opposed to the injection valve 132 as described above, the application unit 130 drives the injection valve 132 and the third transfer unit 142 to perform the adhesive application operation. At this time, the injection valve 132 discharges the adhesive contained in the inside to the edge of the adherend 1 by the discharge port 134. Further, the third transfer unit 142 drives the injection valve 132 to move horizontally in order to uniformly apply the adhesive to the entire edge of the adherend 1 . That is, the injection valve 132 that discharges the adhesive is driven by the third transfer unit 142 to be horizontally transferred and discharges the adhesive to the edge of the adherend 1 . When the application of the adhesive to the edge of the adherend 1 is completed as described above, the discharge port 134 of the injection valve 132 facing the edge of the edge of the adherend 1 will face the other end of the edge of the adherend 1 .

When the adhesive application operation for one edge of the adhering object 1 is completed as described above, the rotary motor 116 is operated to rotate the adsorption table 112 that adsorbs and supports the adhering object 1 by 90 degrees and the remaining edges are pasted. Agent application work.

On the other hand, when the injection valve 132 is in operation, the contaminant removal portion 150 also operates at the same time, and the contaminant removal portion 150 is transported along the injection valve 132 and sucks or blows off the viscous splash around the discharge port 134 of the injection valve 132. The patch is finely removed and removed.

On the other hand, when the adhesive is applied to the upper portion of the adherend 1, the first, second, and third transfer units 120, 136, and 142 are first operated so that the nozzle 164 of the discharge cylinder 162 faces the portion to which the adhesive is applied. After the arrangement, the upper coating unit 160 and the third transfer unit 142 are operated to perform an adhesive application operation. At this time, the liquid phase adhesive contained in the discharge cylinder 162 is pressurized by the air pressure flowing into the discharge cylinder 162 and is discharged through the nozzle 164. Further, the third transfer unit 142 drives the upper discharge unit 160 to horizontally in order to discharge the adhesive discharged through the nozzle 164 in a line form along the application portion.

The adhesive applicator 100 of the present invention thus formed includes a loading unit 110 that rotatably vacuum-adsorbs an adhering object 1 and an edge coating portion 130 that discharges a liquid phase adhesive in a dot form. Further, the adhesive agent can be applied to the edge of the adherend 1 to be adsorbed by the loading unit 110; not only can the loading defect of the adhering object 1 be minimized, but also the entire edge of the adhering object 1 can be applied without reloading the adhering object 1. Apply adhesive to improve productivity.

Further, the adhesive application device 100 of the present invention further includes a contaminant removing portion 150 which can eject the fine particles of the adhesive which are scattered around the discharge port 134 of the injection valve 132 when the injection valve 132 of the side application portion 130 discharges the adhesive. It is removed to prevent the fine particles of the adhesive from sticking to the surface of the adherend 1 .

Further, the adhesive application device 100 of the present invention further includes an upper coating portion 160 capable of applying an adhesive to the upper surface of the adhering object 1, so that the edge of the adhering object 1 and the adhesive pair can be applied by a single device. The upper portion of the object 1 is subjected to an adhesive application operation.

The above-described adhesive application device 100 is not limited to the configuration and operation mode of the above-described embodiments, and the above-described embodiments can be selectively combined with all or a part of the respective embodiments to form various modifications.

1‧‧‧Adhesive objects

2‧‧‧ glass substrate

3‧‧‧protective glass

100‧‧‧Adhesive coating device

110‧‧‧Loading Department

112‧‧‧Adsorption station

114‧‧‧vacuum adsorption holes

116‧‧‧Rotary motor

118‧‧‧Cylinder shaft

120‧‧‧First Transfer Unit

122‧‧‧First linear motor

124‧‧‧First slider

126‧‧‧linear guide

128‧‧‧ linear block

130‧‧‧edge coating department

132‧‧‧Injection valve

134‧‧‧ spitting

136‧‧‧Second transfer unit

142‧‧‧ Third Transfer Unit

144‧‧‧third linear motor

146‧‧‧ third slider

150‧‧‧Contaminant Removal Department

152a‧‧‧Inhaler

152b‧‧‧hair dryer

160‧‧‧Upper spit out

162‧‧‧ spit out

164‧‧‧ nozzle

166‧‧‧Adhesive container

S‧‧‧Subrack

1 is a perspective view of a general active organic light emitting diode; FIG. 2 is a perspective view of the adhesive applying device of the present invention; FIG. 3 is a front view of the adhesive applying device shown in FIG. 2; Figure 5 is a top view of the adhesive applicator of Figure 2; Figure 6 is a view of an embodiment of the contaminant removal portion of Figure 2; and Figure 7 is a view Figure 2 shows a diagram of another embodiment of the contaminant removal section.

100‧‧‧Adhesive coating device

110‧‧‧Loading Department

112‧‧‧Adsorption station

114‧‧‧vacuum adsorption holes

116‧‧‧Rotary motor

118‧‧‧Cylinder shaft

120‧‧‧First Transfer Unit

122‧‧‧First linear motor

124‧‧‧First slider

126‧‧‧linear guide

128‧‧‧ linear block

130‧‧‧edge coating department

132‧‧‧Injection valve

136‧‧‧Second transfer unit

138‧‧‧Second linear motor

140‧‧‧Second slider

142‧‧‧ Third Transfer Unit

144‧‧‧third linear motor

146‧‧‧ third slider

150‧‧‧Contaminant Removal Department

160‧‧‧Upper spit out

162‧‧‧ spit out

164‧‧‧ nozzle

166‧‧‧Adhesive container

Claims (10)

An adhesive application device comprising: a loading portion that horizontally adsorbs and supports an adhering object; and an edge coating portion that is provided with an injection valve that faces an edge of the adhering object to which an adhesive is applied The liquid phase adhesive is discharged and applied in a dispensing form along the longitudinal direction of the edge. The adhesive applicator according to claim 1, wherein the loading unit includes: an adsorption stage that horizontally adsorbs and supports the adhering object; a rotary motor that rotatably supports the adsorption stage; and a cylinder shaft The lower portion is connected to the rotary motor and the upper portion is connected to the lower surface of the adsorption stage. The adhesive applicator according to claim 2, wherein the rotary motor rotates the adsorption stage by 90 degrees. The adhesive applicator according to claim 2, wherein the loading unit further includes a first transfer unit that transfers the adsorption stage in the y-axis direction; the first transfer unit includes: a first linear motor Extending along the y-axis direction; and the first slider, along with the operation of the first linear motor described above The first linear motor is guided; the lower portion of the rotary motor is fixedly mounted on an upper portion of the first slider. The adhesive applicator according to claim 1, wherein the edge coating unit further includes a second transfer unit that transfers the injection valve along the z-axis direction; and the second transfer unit includes: a second a linear motor extending vertically along the z-axis direction; and a second slider guided along the second linear motor by operation of the second linear motor; the injection valve being mounted on the second slider. The adhesive application device according to claim 1, wherein the edge coating portion further includes a third transfer unit that transfers the injection valve along the x-axis direction; and the third transfer unit includes: a third line a motor extending along the x-axis direction; and a third slider guided along the third linear motor by operation of the third linear motor; and a second transfer unit that transfers the injection valve along the z-axis direction The back side is connected to the third slider above. The adhesive applicator according to claim 1, wherein the inside of the injection valve houses the adhesive supplied from the outside. In the agent, the adhesive is discharged through a discharge port, and the discharge port is disposed to face the edge of the adherend to be coated with the adhesive. The adhesive application device according to claim 1, wherein the adhesive application device further includes an upper coating portion that applies an adhesive agent in a line form on an upper portion of the adhering object; The upper coating unit includes: a discharge cylinder that is guided along the injection valve without interfering with the injection valve, and an adhesive agent is accommodated inside; and an adhesive container that is connected to the discharge cylinder to supply an adhesive to the inside of the discharge cylinder a nozzle that integrally discharges the above-mentioned adhesive agent contained in the inside of the discharge cylinder. The adhesive application device according to claim 1, wherein the adhesive application device further includes a contaminant removing portion that can scatter the adhesive agent toward the periphery of the injection valve when the adhesive is discharged. The fine particles are removed, and the contaminant removing portion is disposed adjacent to the upper portion and the lower portion of the injection valve and guided along the injection valve without interfering with the injection valve. The adhesive applicator according to claim 9, wherein The contaminant removing unit is an inhaler that sucks in fine particles of the adhesive and removes the fine particles of the adhesive.