KR102326895B1 - Spray assist device for spray guns - Google Patents

Abstract

The present invention relates to a spray assistance device for a spray gun and, more specifically, to a spray assistance device for a spray gun that can visually confirm a position where a spray liquid is to be sprayed by emitting light and projecting the light onto a spray surface in a set area, can be installed on any spray gun regardless of the type of spray gun, the tightening degree of a nozzle, the type of spray liquid, and the spray pressure by performing a calibration process that matches a light emitting area to a sprayed range of the spray liquid during the test spray of the spray liquid, can more accurately indicate the position where the spray liquid is to be sprayed depending on the diffusion characteristics of the spray liquid by additionally performing a calibration process, and that can allow even an inexperienced person to position a spray gun to the optimum spray position through a simple process of projecting the area of light that guides the optimum spray position on the spray surface and matching the area of light that indicates the position where the spray liquid is to be sprayed with the spray surface. The spray assistance device for a spray gun comprises a detachable part and a spray position notification module.

Description

Spray assist device for spray guns

The present invention relates to a spraying auxiliary device for a spray gun, and more particularly, by emitting light and projecting it on a spraying surface in a set area, it is possible to visually confirm the location where the spray liquid is to be sprayed, and to test spray the spray liquid By performing a calibration process that matches the light emitting area to the sprayed range of the spraying liquid, it can be installed on any spray gun regardless of the type of spray gun, the tightening degree of the nozzle, the type of spray, and the spray pressure, and calibration is corrected. By additionally performing the process, it is possible to more accurately indicate the location to be sprayed of the spray liquid according to the diffusion characteristics of the spray liquid, and to project the area of light guiding the optimal spray position on the spray surface, and the spray liquid to be sprayed. It relates to a spraying aid for a spray gun that allows even an unskilled person to position the spray gun to the optimal spraying position through a simple process of matching the area of the light that marks the location.

The spraying of a spray liquid through a spray gun is used in various fields such as painting of paints and spraying of chemicals.

However, when spraying a spray liquid using a spray gun, the range to which the spray liquid is sprayed depends on the type of spray gun used, the type of spray liquid, the spray pressure, etc., and only those skilled in the field who have worked for a long time This can be detected sensory, and in the case of an unskilled person, there was a problem in that it was necessary to go through trial and error for a long time, such as spraying an excessively large amount of the spray solution in a narrow range or spraying the spray solution in an excessively wide range less than the standard.

Therefore, conventionally, a light emitting means is built in the inside of the nozzle so that visible light is irradiated to the front end of the nozzle so that the spraying area can be guessed. There was a problem of becoming useless when the injection pressure was changed.

Therefore, there is a need for the development of an auxiliary device for spray guns that can be easily mounted and used on any type of spray gun.

JP2007-075792 (public number) 2007.03.29.

An object of the present invention is to provide an auxiliary device for spray guns that can visually confirm a location where a spray liquid is to be sprayed by emitting light and projecting it on a spray surface in a set area.

In addition, the present invention performs a calibration process to match the light emitting area to the sprayed range of the spray liquid during the test spraying of the spray liquid, regardless of the type of spray gun, the degree of tightening of the nozzle, the type of the spray liquid, and the spray pressure An object of the present invention is to provide a spraying auxiliary device for a spray gun that can be mounted on any spray gun.

In addition, an object of the present invention is to provide an auxiliary device for spraying a spray gun capable of more accurately indicating a location to be sprayed of a spray liquid according to a diffusion characteristic of the spray liquid by additionally performing a calibration correction process.

In addition, in the present invention, through a simple process of projecting a region of light guiding the optimal injection position on the injection surface, and matching the region of light indicating the position where the injection liquid is to be sprayed, even non-skilled people can optimize the spray gun. An object of the present invention is to provide a spraying auxiliary device for a spray gun that can be positioned at a spraying position of

The present invention, a detachable part detachably coupled to one side of the spray gun; A spraying position notification module coupled to one side of the detachable part to irradiate light so that a colored light emitting area can be displayed in a set area in front of the spray gun; including, wherein the spraying location notification module is coupled to one side of the detachable part, a first housing having a hollow interior; a first light emitting part provided inside the first housing; a first lens provided in front of the first light emitting unit in the first housing; a first actuator coupled to the first lens inside the first housing to move the first lens in a front-rear direction; and a control unit configured to vary the area on which the light emitted from the first light emitting unit is projected by driving the first actuator to vary the distance between the first lens and the first light emitting unit.

In addition, the present invention, the camera provided inside the first housing; distance measuring means provided inside the first housing; and the control unit, when the spray gun is operated at a first distance, displays a first image in which the spray liquid is sprayed on the spraying surface at the start time of the spray gun After a set time has elapsed, the camera receives the input from the camera, and at the same time receives the first distance from the distance measuring means to the injection surface, and based on the ratio of the first distance to the first injection range extracted from the first image, the The driving amount of the first actuator is determined so that the light emitted from the first light emitting unit is projected in the predetermined injection range according to the distance between the distance measuring means and the injection surface.

In addition, the control unit of the present invention, when the spray gun is operated at a second distance, receives the second image in which the spray liquid is sprayed on the spraying surface from the camera after a set time has elapsed from the start time of the spray gun operation, and at the same time receiving a second distance from the distance measuring means to the injection surface, extracting a second injection range from the second image, and comparing the first distance and the The driving amount of the first actuator is corrected as a ratio of the second distance.

In addition, the present invention includes a; injection position correction module coupled to one side of the detachable part or the injection position notification module to irradiate light so that a colored light emitting region can be displayed in a set region in front of the spray gun; The injection position correction module includes: a second housing coupled to one side of the detachable part or the first housing and having a hollow interior; a second light emitting part provided inside the second housing; a second lens provided in front of the second light emitting unit in the second housing; a second actuator coupled to the second lens inside the second housing to move the second lens in the front-rear direction; By varying the distance between the two light emitting units, the area on which the light emitted from the second light emitting unit is projected is varied.

In addition, the control unit of the present invention is configured such that an area of a fixed size calculated based on the ratio of the first distance to the first spray pattern extracted from the first image and the type of a preset spray solution is projected on the spray scheduled spray surface. A driving amount of the second actuator is determined.

In addition, the control unit of the present invention extracts a second injection pattern from the second image, and as a ratio of the first distance and the second distance to the ratio of the first injection pattern and the second injection pattern, the second 2 Correct the actuator driving amount.

In addition, when the calculated driving amount of the first actuator is out of the driving range of the first actuator, the controller of the present invention changes the light emission pattern of the first light emitting unit.

In addition, when the calculated driving amount of the second actuator is out of the driving range of the second actuator, the controller of the present invention changes the light emission pattern of the second light emitting unit.

The present invention has the effect of visually confirming the location where the spray liquid is to be sprayed by emitting light and projecting it on the spray surface in a set area.

In addition, the present invention performs a calibration process to match the light emitting area to the sprayed range of the spray liquid during the test spraying of the spray liquid, regardless of the type of spray gun, the degree of tightening of the nozzle, the type of the spray liquid, and the spray pressure It has an effect that can be used by attaching it to any spray gun.

In addition, the present invention has the effect of more accurately displaying the spraying position of the spraying liquid according to the diffusion characteristics of the spraying liquid by additionally performing a calibration correction process.

In addition, in the present invention, through a simple process of projecting a region of light guiding the optimal injection position on the injection surface, and matching the region of light indicating the position where the injection liquid is to be sprayed, even non-skilled people can optimize the spray gun. There is an effect that can be positioned at the injection position of

1 is a state diagram of a spray gun according to an embodiment of the present invention.
Figure 2 is a perspective view of a spray gun spray auxiliary device according to an embodiment of the present invention.
Figure 3 is a cross-sectional view of the spray gun spray auxiliary device according to an embodiment of the present invention.
4 is a perspective view of an auxiliary device for spraying a spray gun according to an additional embodiment of the present invention.
5 is a cross-sectional view of an auxiliary device for spraying a spray gun according to an additional embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The present invention, as shown in FIGS. 1 to 5 , a detachable part 100 detachably coupled to one side of the spray gun 1 , and a spray gun 1 coupled to one side of the detachable part 100 . It is configured to include the injection position notification module 200 for irradiating light so that the colored light emitting area can be displayed in the set area in front of the.

The detachable unit 100 serves to mount the injection position notification module 200 to the spray gun 1, and for this purpose, it is detachably coupled to one side of the spray gun 1, and the injection position notification module ( 200) is combined.

As shown in the drawings, the detachable part 100 may be formed in a cylindrical shape 110 with one side cut off, and as long as it can be mounted on the spray gun 1, either a clip shape or a band clamp shape may be used.

As shown in the drawing, the detachable unit 100 is coupled to the injection position notification module 200 and the ball head clamp 120 in a manner such that the coupling angle of the injection position notification module 200 can be varied. , as a fixed type, it is also possible that the emission direction of the injection position notification module 200 is configured to be parallel to the injection direction of the nozzle.

The injection position notification module 200 serves to inform the user of the location and to what extent the injection will be made when the spray gun 1 performs the injection operation as a projection of the colored light emitting area, and for this purpose, the detachable part ( 100) through the spray gun (1).

The injection position notification module 200 is coupled to one side of the detachable unit 100 and includes a first housing 210 having a hollow interior, and a first light emitting unit 220 provided in the first housing 210 . and a first lens 230 provided in front of the first light emitting unit 220 inside the first housing 210, and the first lens 230 coupled to the first lens 230 in the inside of the first housing 210. 1 The first actuator 231 for moving the lens 230 in the front-rear direction, and the first actuator 231 to change the distance between the first lens 230 and the first light emitting unit 220 by driving the first The light emitting unit 220 is configured to include a control unit 240 for changing the projected area.

The first housing 210 has a hollow interior to accommodate the first light emitting unit 220 , the first lens 230 , the first actuator 231 , the control unit 240 , the battery 250 , and the like. is configured such that the front is opened so that the light generated from the first light emitting unit 220 can be emitted to the outside. In addition, the first transparent cover 211 is provided in the front opening so that the internal components are not contaminated by foreign substances such as spray liquid.

First, the first light emitting unit 220 is installed inside the first housing 210 . The first light emitting unit 220 is mounted with a first LED 221 to emit colored light forward.

The light generated from the first light emitting unit 220 is emitted forward and is projected onto an external injection surface through a first lens 230 and a first transparent cover 211 to be described below.

The first lens 230 serves to refract the light emitted from the first light emitting unit 220 to limit the range in which the light is projected, and for this purpose, the first light emitting unit ( 220) is provided in front.

Although the first lens 230 is shown in the form of a convex lens, the present invention is not limited thereto, and a configuration in which a plurality of convex and concave lenses are combined is also possible.

On the other hand, the first lens 230 serves to vary the projected range of the light emitted from the first light emitting unit 220, and for this purpose, it is mounted on the first actuator 231 and is configured to be movable in the front and rear directions. do.

The first actuator 231 moves the first lens 230 in the front-rear direction to change the range in which the light emitted from the first light emitting unit 220 is projected, and for this purpose, the first housing 210 It is coupled to the first lens 230 in the interior of the.

This first actuator 231 is configured in the form of a coil and a magnet to have a driving amount corresponding to the input power, but may be configured like the lens actuator of the camera 241 of a typical smartphone, but using a motor and a gear 1 A configuration for moving the lens 230 is also possible, and a known small plane parallel movement technique may be employed.

The driving amount of the first actuator 231 is determined by the calculation of the controller 240, and the process for determining the driving amount of the first actuator 231 will be described in detail in the description of the controller 240 below. .

The control unit 240 drives the first actuator 231 to vary the distance between the first lens 230 and the first light emitting unit 220, so that the light emitted from the first light emitting unit 220 is projected. It serves to change the area.

To this end, the control unit 240 is provided inside the first housing 210 and is electrically connected to the first actuator 231 .

On the other hand, when the control unit 240 drives the first actuator 231 to change the area on which the light emitted from the first light emitting unit 220 is projected, the area on which the light is projected is changed from the spray gun (1). It should be the area where the spray liquid reaches the spray surface. This is because it is possible to recognize in which range the spray liquid will be sprayed when the user operates the spray gun 1 . At this time, since the spraying auxiliary device for the spray gun 1 of the present invention is intended to be used by being mounted on various types of the spray gun 1, light should not be projected on a uniformly determined area.

Therefore, in the present invention, the area in which the spray liquid is sprayed from the spray gun 1 and reaches the spray surface can be set irrespective of the type of the spray gun 1, the tightening degree of the nozzle, the type of the spray liquid, and the spray pressure. The process is carried out. The calibration process is a process of matching the spraying area that is variable depending on the type of the spray gun 1, the tightening degree of the nozzle, the type of spraying liquid, and the spraying pressure and the area projected by emitting light from the spraying position notification module 200. , For this purpose, the injection position notification module 200 further includes a camera 241 provided in the first housing 210 and a distance measuring means 242 provided in the first housing 210 . .

The camera 241 takes an image of the front and transmits the captured image to the control unit 240, and the distance measuring means 242 is the injection surface and the injection position notification module at the time when the camera 241 shoots the image of the front. The distance of 200 is measured and transmitted to the control unit 240 . In addition, although the camera 241 and the distance measuring means 242 are shown provided in the front of the first lens 230 in the interior of the first housing 210, the present invention is not limited thereto. Any location that does not interfere with filming or measuring distances is acceptable. In addition, in the case of the camera 241 capable of measuring a distance, the camera 241 may simultaneously serve as the distance measuring means 242 .

Looking at the calibration process in detail, first, the spray gun 1 is initially operated toward the spraying surface at a certain first distance. Then, the spray liquid is sprayed and adhered to the spray surface. At this time, the control unit 240 receives the first image from the camera 241 after a set time elapses from the start time of the operation of the spray gun (1). On the other hand, at this time, the start time of the operation of the spray gun 1 is sensed through image processing when the spraying of the spray liquid starts while continuously receiving images from the camera 241 without the need for a separate switch, and that time point is to be designated as the starting point of operation of the spray gun (1). Then, when the first image is received from the camera 241 , a measurement value obtained by measuring the first distance from the distance measuring means 242 to the injection surface is received. Finally, the controller 240 determines the distance between the distance measuring means 242 and the injection surface to be sprayed based on the ratio of the first distance to the first spray range extracted from the first image, that is, the spray liquid is sprayed and attached. Accordingly, the driving amount of the first actuator 231 is determined so that the light emitted from the first light emitting unit 220 is projected in the injection scheduled range.

For example, if the distance between the spray surface and the distance measuring means 242 was 1 meter in the calibration process, and the first spray range extracted from the first image at that time was 30 cm, after the calibration process is completed, the spray gun 1 again If the distance when lifted toward the injection surface is 1.5 meters, the range of light projected from the injection position notification module 200 at this time to the injection surface is 45 cm.

However, the spray liquid sprayed from the spray gun 1 may not spread linearly. When the particles of the spray liquid are small, it may have a form of spreading outward, and when the particles of the spray liquid are large, it may have a form of decreasing the width inward. In addition, even the same spray liquid may have a completely different spray shape depending on the type of spray liquid as well as the tightening degree of the nozzle, spray pressure, and the like.

Accordingly, in the present invention, not only the calibration process but also the calibration correction process is further performed. The calibration correction process performs a process similar to the calibration process once more at a second distance spaced apart from the first distance by a set distance, but at this time, the first injection range and the second As an increase/decrease ratio made by the spray range, it is to predict the approximate spray shape of the spray liquid.

To this end, when the spray gun 1 is operated at the second distance, the control unit 240 displays the second image in which the spray liquid is sprayed on the spraying surface after a set time has elapsed from the start time of the spray gun 1 operation. 241 , and at the same time, a second distance from the distance measuring means 242 to the injection surface is received. Thereafter, a second injection range is extracted from the second image, and the driving amount of the first actuator 231 is corrected as a ratio of the first distance and the second distance to the ratio of the first range and the second range.

For example, in the calibration process, the distance between the injection surface and the distance measuring means 242 was 1 meter, the first injection range extracted from the first image at that time was 30 cm, and in the calibration correction process, the injection surface and the distance measuring means ( 242) was 1.5 meters, and if the second spray range extracted from the second image at that time was 60 cm, this is a result of the spray liquid proceeding forward and spreading outward. ), if the distance when lifting it toward the injection surface is 1.2 meters, the range of light projected from the injection location notification module 200 at this time to the injection surface is not 36 cm, which is the result of simply performing the calibration process, but 40 cm larger than that. Or 45 cm, etc. will be the way. At this time, the projected light range may be used in consideration of the calculation based on the type of spray liquid input in advance, and preferably, the calibration correction process is performed once more at the first distance and the third distance spaced from the second distance. By performing this, it is possible to obtain a more accurate diffusion graph of the spray liquid.

Through this configuration, even if you are not a skilled person who has been spraying the spray gun 1 for a long time, you can visually check in which range the spray liquid will be sprayed when the spray gun 1 is operated, so that the completion of the work can be improved. .

On the other hand, the area of the light projected on the spraying surface through the spraying position notification module 200 only indicates the location where the spray liquid will be sprayed when the spray gun 1 is currently operated. It does not represent an optimal location for spraying.

Therefore, in the present invention, the injection position correction module 300 is provided so that the colored light emitting region can be displayed in the set region in front of the spray gun 1 in order to indicate the optimal position for the injection of the spray liquid.

The injection position correction module 300 is provided coupled to one side of the detachable unit 100 or the injection position notification module 200, is coupled to one side of the detachable unit 100 or the first housing 210, and provides a hollow interior. a second housing 310 having a second housing 310 , a second light emitting unit 320 provided inside the second housing 310 , and a front side of the second light emitting unit 320 inside the second housing 310 . It is configured to include a second lens 330 and a second actuator 331 coupled to the second lens 330 inside the second housing 310 to move the second lens 330 in the front-rear direction.

The second housing 310 has a hollow interior to accommodate the second light emitting unit 320 , the second lens 330 , the second actuator 331 , and the like, and the front is opened to the second housing 310 . The light generated from the light emitting unit 320 is configured to be emitted to the outside. In addition, a second transparent cover 311 is provided in the front opening so that the internal components are not contaminated by foreign substances such as spray liquid. The second housing 310 is coupled to a connector for electrical connection exposed on one side of the first housing 210 so that the control unit 240 can control the second light emitting unit 320 and the second actuator 331 . and the power of the battery 250 is configured to be provided to the second light emitting unit 320 and the second actuator 331 . In addition, a separate fixing plate 201 may be further provided to firmly couple the first housing 210 and the second housing 310 .

First, the second light emitting unit 320 is installed inside the second housing 310 . The second light emitting unit 320 is mounted with a second LED 321 to emit colored light forward. In this case, it is preferable that the emission color be a different color or a different shape from the light emitted from the first light emitting unit 220 .

The light generated from the second light emitting unit 320 is emitted forward and is projected on the external injection surface through a second lens 330 and a second transparent cover 311 to be described below.

The second lens 330 serves to refract the light emitted from the second light emitting unit 320 to limit the range in which the light is projected, and for this purpose, the second light emitting unit ( 320) is provided in front.

Although the second lens 330 is illustrated in the form of a convex lens, the present invention is not limited thereto, and a configuration in which a plurality of convex and concave lenses are combined is also possible.

On the other hand, the second lens 330 serves to vary the projected range of the light emitted from the second light emitting unit 320, and for this purpose, it is mounted on the second actuator 331 and is configured to be movable in the front and rear directions. do.

The second actuator 331 moves the second lens 330 in the front-rear direction to change the range in which the light emitted from the second light emitting unit 320 is projected, and for this purpose, the second housing 310 It is coupled to the second lens 330 in the interior of the.

This second actuator 331 is configured in the form of a coil and a magnet to have a driving amount corresponding to the input power, but may be configured like the lens actuator of the camera 241 of a typical smartphone, but using a motor and a gear 2 A configuration for moving the lens 330 is also possible, and a known small plane parallel movement technique may be employed.

The driving amount of the second actuator 331 is determined by the calculation of the controller 240 , and a process for determining the driving amount of the second actuator 331 will be described in detail below.

The control unit 240 drives the second actuator 331 to vary the distance between the second lens 330 and the second light emitting unit 320 to project the light emitted from the second light emitting unit 320 . change the

To this end, the controller 240 extracts the first spray pattern from the first image obtained in the calibration process. The first spray pattern is a concept different from the first spray area extracted in the calibration process. If the first spray area means the area of the area to which the spray liquid is attached, the first spray pattern is the spray liquid within the first spray area. This is the concept of the attached density. At this time, the type of the spray liquid may be set and input to the control unit 240 in advance, and the control unit 240 may spray the scheduled injection surface on the basis of the ratio of the first distance to the first spray pattern and the type of the preset spray liquid. The driving amount of the second actuator 331 is determined so that the light emitted from the second light emitting unit 320 is projected in a set fixed range.

For example, if the optimal spraying distance calculated as the first spray pattern versus the first distance and the type of spray liquid is 1.5 meters, and the optimal spray range at this time is 45 cm, the The distance, that is, the range of light projected on the projected injection surface from the injection position correction module 300 at any distance between the distance measuring means 242 and the projected injection surface is fixed to 45 cm. Therefore, the control unit 240 receives the distance from the distance measuring means 242 to the injection surface in real time, and drives the second actuator 331 in real time, regardless of the distance between the spray gun 1 and the injection surface. This is to allow light of the same size to be projected on the injection surface to be injected.

And, at the same time, the injection position notification module 200 is driven and the light generated from the first light emitting unit 220 is projected on the injection surface to be injected. The light projected from the injection position notification module 200 to the injection surface is the spray Since the spray liquid sprayed from the gun 1 is attached to the area, it varies depending on the distance between the spray gun 1 and the spray surface, but the light projected from the spray position correction module 300 to the spray surface has a fixed size. Therefore, the user moves the spray gun 1 in the front and rear directions while the area of light emitted from the injection position correction module 300 and projected on the injection surface and the area of light emitted from the injection position notification module 200 and projected on the injection surface. You can make the areas of light match. This position is the optimal position for operating the spray gun 1 to spray the spray liquid, and at this time, matching the area of light is that the injection position notification module 200 and the injection position correction module 300 are parallel to each other. It should be noted that perfect matching is impossible because it is constructed, and it is a concept involving matching approximate sizes.

On the other hand, when the injection position correction module 300 is driven, it is preferable to reflect the diffusion characteristics of the spray liquid as in the calibration correction process. To this end, the control unit 240 extracts the second injection pattern from the second image obtained in the calibration correction process, and the second actuator as the ratio of the first distance and the second distance to the ratio of the first injection pattern and the second injection pattern. The driving amount of (331) is corrected. This is a result of the calculation of the optimal spraying area using the first spraying pattern extracted from the first image and the first distance under the assumption that the diffusion characteristics of the spraying liquid will be linear. For correction, the degree of difference between the second jet pattern at the second distance and the linear model calculated from the first jet pattern at the first distance is measured. Therefore, if the calibration correction process is to non-linearly vary the area of light projected from the spraying position notification module 200 to the spraying surface according to the distance between the spray gun 1 and the spraying surface, the correction process of the optimal spraying area is Regardless of the distance between the spray gun 1 and the spraying surface, there is a difference for setting the area of the light projected by the spraying position correction module 300 to the spraying surface to an optimal size.

Therefore, through this configuration, even a non-skilled person has to operate the spray gun 1 at what distance when the spray gun 1 is operated, and at this time, it is possible to visually check in which range the spray liquid will be sprayed, so the completion of the work can increase

On the other hand, in the case of the injection position notification module 200, the first actuator 231 is driven and there is a limit to the displayable area of light, and even in the case of the injection position correction module 300, the second actuator 331 is driven and displayed The range of possible light is limited. For example, if the spray gun 1 is brought too close to the spraying surface, the area converging to the point from the spraying position notification module 200 must be displayed on the spraying surface, and the spraying position correction module 300 from the lens Impossible areas outside the angle of refraction shall be marked on the jetting surface. Conversely, if the spray gun 1 is too far away from the spraying surface, an area of, for example, several tens of meters from the spraying position notification module 200 must be displayed on the spraying surface, and the spraying position correction module 300 is almost It should emit light toward the injection surface in the form of indicating the area converging to the point. Therefore, when the calculated driving amount of the first actuator 231 is out of the driving range of the first actuator 231, the control unit 240 changes the light emission pattern of the first light emitting unit 220 so that the user can recognize it. Or, when the calculated driving amount of the second actuator 331 is out of the driving range of the second actuator 331 , the light emission pattern of the second light emitting unit 320 is changed so that the user can recognize it. For example, if it is too close to the injection surface, it blinks once, and if it is too far from the injection surface, it is quickly cut off twice and blinks twice so that the user can be recognized.

The present invention having the above-described configuration has the effect of visually confirming the location where the spray liquid is to be sprayed by emitting light and projecting it onto the spray surface in a set area.

In addition, the present invention, by performing a calibration process to match the light emitting area to the sprayed range of the spray liquid during the test spraying of the spray liquid, the type of the spray gun 1, the degree of tightening of the nozzle, the type of the spray liquid, the injection Regardless of the pressure, there is an effect that can be used by installing it on any spray gun (1).

In addition, the present invention has the effect of more accurately displaying the spraying position of the spraying liquid according to the diffusion characteristics of the spraying liquid by additionally performing a calibration correction process.

In addition, the present invention provides a spray gun (1) even for non-skilled users through a simple process of projecting a region of light guiding the optimal injection position on the injection surface, and matching the region of light indicating the position where the injection liquid is to be sprayed. ) to the optimal injection position.

1: spray gun
100: detachable part
200: injection position notification module 201: fixed plate
210: first housing 211: first transparent cover
220: first light emitting unit 221: first LED
230: first lens 231: first actuator
240: control unit 241: camera
242: distance measuring means 250: battery
300: injection position correction module 310: second housing
311: second transparent cover 320: second light emitting part
321: second LED 330: second lens
331: second actuator

Claims (8)

a detachable part detachably coupled to one side of the spray gun;
a spraying position notification module coupled to one side of the detachable part and irradiating light so that a colored light emitting area can be displayed in a set area in front of the spray gun;
including,
The injection position notification module,
a first housing coupled to one side of the detachable part and having a hollow interior;
a first light emitting part provided inside the first housing;
a first lens provided in front of the first light emitting unit in the first housing;
a first actuator coupled to the first lens inside the first housing to move the first lens in a front-rear direction;
a control unit which drives the first actuator to vary a distance between the first lens and the first light emitting unit, thereby varying an area on which the light emitted from the first light emitting unit is projected;
a camera provided inside the first housing;
a distance measuring means provided inside the first housing;
includes,
When the spray gun is operated at a first distance, the control unit receives a first image in which the spray liquid is sprayed on the spraying surface from the camera after a set time has elapsed from the start time of the operation of the spray gun, and at the same time from the distance measuring means The first distance to the injection surface is received, and based on the ratio of the first distance to the first injection range extracted from the first image, the distance between the distance measuring means and the injection surface is applied to the predetermined injection range. A spray gun auxiliary device for determining a driving amount of the first actuator so that the light emitted from the first light emitting unit is projected.
delete The method of claim 1,
When the spray gun is operated at a second distance, the control unit receives a second image in which the spray liquid is sprayed on the spraying surface from the camera after a set time has elapsed from the start time of the operation of the spray gun, and at the same time from the distance measuring means The second distance to the injection surface is received, a second injection range is extracted from the second image, and the ratio of the first distance to the second distance to the ratio of the first injection range to the second injection range A spraying auxiliary device for a spray gun that corrects the driving amount of the first actuator.
4. The method of claim 3,
It includes; a spraying position correction module coupled to one side of the detachable part or the spraying position notification module and irradiating light so that a colored light emitting area can be displayed in a set area in front of the spray gun;
The injection position correction module,
a second housing coupled to one side of the detachable part or the first housing and having a hollow interior;
a second light emitting part provided inside the second housing;
a second lens provided in front of the second light emitting unit in the second housing;
a second actuator coupled to the second lens inside the second housing to move the second lens in a front-rear direction;
includes,
The control unit drives the second actuator to vary the distance between the second lens and the second light emitting unit, thereby changing the area on which the light emitted from the second light emitting unit is projected.
5. The method of claim 4,
The control unit, the second actuator so that an area of a fixed size calculated based on a ratio of the first distance to the first spray pattern extracted from the first image and a preset type of spraying liquid is projected on the spraying surface to be sprayed. A spraying aid for spray guns that determines the amount of drive.
6. The method of claim 5,
The control unit extracts a second injection pattern from the second image, and a driving amount of the second actuator as a ratio of the first distance and the second distance to a ratio of the first injection pattern and the second injection pattern A dispensing aid for spray guns that calibrates
7. The method of claim 6,
The control unit, when the calculated driving amount of the first actuator is out of the driving range of the first actuator, the spray gun spraying auxiliary device for changing the light emission pattern of the first light emitting unit.
7. The method of claim 6,
The control unit, if the calculated driving amount of the second actuator is out of the driving range of the second actuator, the spray gun spray auxiliary device for changing the light emission pattern of the second light emitting unit.

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