TWI856846B - Spraying equipment - Google Patents

Abstract

A spraying device includes a workbench, a cleaning unit, a spraying unit and a control unit. The workbench has a work surface. The work surface has a processing area for the object to be processed and a cleaning area adjacent to the processing area. The cleaning unit includes a cleaning film. The spraying unit is movably arranged on the workbench and includes a carrier assembly, a nozzle and a carrier driver. By arranging the cleaning unit in the cleaning area adjacent to the processing area on the working surface, when the nozzle is blocked by the rubber material during the process of spraying the rubber material on the object to be processed arranged in the processing area, the control unit can control the carrier driver to drive the carrier assembly to move the nozzle to contact the cleaning film of the cleaning unit to remove the rubber material, thereby maintaining the smoothness of the process and achieving the effect of saving time and labor.

Description

Spraying equipment

The present invention relates to a device for coating a fluid on an object, and more particularly to a spraying device.

Existing spray coating devices can be applied in different fields, such as in the LED manufacturing process, spray coating devices are used to coat different adhesives into fluorescent layers or light-transmitting layers; or in the electronic parts manufacturing process, spray coating devices are used to coat adhesives or flux on circuit boards. Since the nozzle of the spray coating device has a narrower caliber, it is easy to be blocked by adhesive, or when the adhesive overflows around the nozzle, the spray coating device needs to be shut down and the nozzle needs to be cleaned manually. In addition to being time-consuming and labor-intensive, resulting in a clogged process, the nozzle can be easily damaged due to the inability to control the force during manual cleaning, which needs to be improved.

Therefore, the purpose of the present invention is to provide a spray coating device that can maintain the smoothness of the process and save time and effort.

Therefore, the spraying device of the present invention is suitable for spraying a rubber material on an object to be processed, and the spraying device includes a workbench, a cleaning unit, a spraying unit and a control unit. The workbench has a work surface. The work surface has a processing area for the object to be processed, and a cleaning area adjacent to the processing area. The cleaning unit is arranged on the workbench and includes a base arranged in the cleaning area, and a flexible cleaning film arranged on the base. The spraying unit is movably arranged on the workbench and includes a carrier assembly that can move relative to the work surface, a nozzle arranged on the carrier assembly, and a carrier driver for driving the carrier assembly to move. The nozzle can move with the carrier assembly and is used to spray the glue material on the object to be processed and to contact the cleaning film. The control unit is arranged on the workbench and is used to control the carrier driver.

The effect of the present invention is that: by arranging the cleaning unit in the cleaning area adjacent to the working surface and close to the processing area, when the nozzle is blocked by the rubber material during the process of spraying the rubber material on the object to be processed arranged in the processing area, or when the rubber material overflows around the nozzle, the control unit can control the carrier driver to drive the carrier assembly so that the nozzle moves to contact the cleaning film of the cleaning unit to remove the rubber material, thereby maintaining the smoothness of the process and achieving the effect of saving time and labor.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , an embodiment of the spray coating device of the present invention is suitable for spraying a rubber material (not shown) on a workpiece 9 to be processed. The spray coating device includes a workbench 1 , a cleaning unit 2 , a spray coating unit 3 and a control unit 4 .

The workbench 1 includes a machine body 11, two side walls 12 and two side rails 13. The machine body 11 has a work surface 111 located at the top in a vertical direction Z. The work surface 111 has a processing area 112 and a cleaning area 113 located in front of the processing area 112 in a front-to-back direction Y. The side walls 12 extend upward from the left and right sides of the work surface 111 in a left-to-right direction X. The side rails 13 extend along the front-to-back direction Y and are respectively arranged on the side walls 12.

The cleaning unit 2 is disposed on the workbench 1 and includes a base 21 disposed in the cleaning area 113 and a flexible cleaning film 22 detachably disposed on the base 21 .

The cleaning film 22 has a base layer 221 disposed on the base 21, a backing layer 222 disposed on the base layer 221 and used to be adhered to the base 21, a cleaning layer 223 disposed on a side of the base layer 221 opposite to the backing layer 222, and a protective layer 224 removably attached to the cleaning surface 225.

In this embodiment, the base layer 221 is made of polyethylene terephthalate (PET). However, in other variations, the material of the base layer 221 may also be other polyesters, polyamide (PA), polyethylene (PE) or polypropylene (PP), etc., but is not limited thereto.

The backing layer 222 is made of an adhesive material, such as but not limited to rubber, silicone or acrylic.

The cleaning layer 223 is a mixture of silicone, resin, acrylic glue and solvent and is flexible. The cleaning layer 223 has a cleaning surface 225 opposite to the base layer 221. The solvent is toluene or acetone.

In the present embodiment, the cleaning surface 225 of the cleaning layer 223 is a flat surface. However, in other variations, the cleaning surface 225 may also be as follows but not limited to: as shown in FIG. 4 and FIG. 5 , the cleaning surface 225′ has a plurality of protrusions 226, and the protrusions 226 may be, but not limited to, spherical (as shown in FIG. 4 ) or wavy (as shown in FIG. 5 ); as shown in FIG. 6 , the cleaning surface 225′ may be spherical (as shown in FIG. 4 ) or wavy (as shown in FIG. 5 ); 25′′ has a plurality of ridges 227 staggered in vertical and horizontal directions, and a plurality of grooves 228 located between the ridges 227, and the ridges 227 and the grooves 228 can also be interchangeable; as shown in FIG. 7, the cleaning surface 225a has a plurality of flocking fibers 229, and the cleaning layer 223 also has a plurality of abrasive grains 230 distributed on the surface of the top ends of the flocking fibers 229.

In the variation shown in FIG. 7 , the material of the abrasive grains 230 is silicon carbide or aluminum oxide, and the particle size of the abrasive grains 230 is between 0.1 μm and 20 μm.

The protective layer 224 is a thin sheet made of polyethylene terephthalate. In the present embodiment, the protective layer 224 is used to shield the cleaning surface 225 of the cleaning layer 223 to prevent the cleaning surface 225 from being stained with hair, dust and other pollutants, and the protective layer 224 is removed before use. However, in the variation shown in FIG. 7 , the protective layer 224 may be omitted to prevent the flocking fibers 229 from being deformed. Alternatively, when the abrasive particles 230 are distributed on the flat cleaning surface 225 and make the cleaning surface 225 rough (not shown), the protective layer 224 may be omitted from the cleaning film 22.

1 , 2 and 8 , the spray unit 3 is movably disposed on the workbench 1 and includes a carrier assembly 31 , a glue container 32 , a nozzle 33 , a carrier driver 34 and a spray driver 35 .

The carrier assembly 31 can move relative to the working surface 111 of the machine body 11. The carrier assembly 31 has a track seat 311, a moving seat 312 and a nozzle seat 313. The left and right ends of the track seat 311 are respectively arranged on the side rails 13 and can move relative to the side rails 13 in the front-rear direction Y. The moving seat 312 is movably arranged on the track seat 311 along the left-right direction X. The nozzle seat 313 is movably arranged on the moving seat 312 along the up-down direction Z.

The glue container 32 is disposed at the front side of the nozzle seat 313 and is used to contain the glue.

The nozzle 33 is disposed at the bottom end of the nozzle seat 313 and connected to the glue container 32. The nozzle 33 can move with the carrier assembly 31 and is used to spray the glue material on the object to be processed 9 and to contact the cleaning film 22.

The carriage driver 34 is disposed on the carriage assembly 31 and is used to drive the carriage assembly 31 to move. The carriage driver 34 has a track driver 341 disposed on the track seat 311 and used to drive the track seat 311, a transverse driver 342 disposed on the moving seat 312 and used to drive the moving seat 312, and a longitudinal driver 343 disposed on the nozzle seat 313 and used to drive the nozzle seat 313. In this embodiment, the track driver 341, the transverse driver 342 and the longitudinal driver 343 are all motors.

The spray driver 35 is used to drive the glue material to be sprayed outward from the nozzle 33. In this embodiment, the spray driver 35 is a pneumatic motor disposed on the carrier assembly 31 and connected to the glue container 32. However, in other variations, the spray driver 35 can also be a piezoelectric motor (not shown) connected to the glue container 32.

1 and 9 , the control unit 4 is a computer and is connected to the workbench 1 . The control unit 4 is used to control the carrier driver 34 and the spray driver 35 .

Referring to FIG. 9 , FIG. 10 and FIG. 11 , when the object 9 to be processed needs to be sprayed with the adhesive, the control unit 4 controls the carrier driver 34 to drive the carrier assembly 31 to move to a predetermined position of the object 9 to be processed, and the control unit 4 controls the spray driver 35 to drive the adhesive to be sprayed at the predetermined position by the nozzle 33. When the nozzle 33 is blocked by the adhesive, or the adhesive overflows around the nozzle 33, the control unit 4 controls the carrier driver 34 to drive the carrier assembly 31 to move forward to the cleaning area 113 and make the nozzle 33 contact the cleaning surface 225 of the cleaning film 22 to remove the adhesive. Thus, the present embodiment does not need to stop the machine for manual cleaning when the nozzle 33 is clogged. The nozzle 33 only needs to be moved from the processing area 112 of the working surface 111 to the cleaning film 22 located in the cleaning area 113 for cleaning and then moved back to the processing area 112 to continue the spraying work, thereby maintaining the smoothness of the process.

It should be noted that the control unit 4 controls the carrier assembly 31 to drive the nozzle 33 to contact the cleaning film 22 in the following manner, for example but not limited to: the nozzle seat 313 drives the nozzle 33 to move back and forth in the up-down direction Z to poke and contact the cleaning film 22, the track seat 311 drives the nozzle 33 to move back and forth in the left-right direction X to frictionally contact the cleaning film 22, or the track seat 311 and the moving seat 312 drive the nozzle 33 to contact the cleaning film 22 in an S-shaped or Z-shaped displacement manner on the plane formed by the left-right direction X and the front-back direction Y.

In this embodiment, the cleaning surface 225 of the cleaning film 22 is a flat surface, but in other variations, any of the cleaning films 22 shown in FIG. 4 to FIG. 7 may be used according to the material or shape of the nozzle 33. In addition, in the variation shown in FIG. 7, when the abrasive particles 230 are distributed on the flocking fibers 229 or on the flat cleaning surface 225, the cleaning effect of the nozzle 33 can be increased.

The present invention is provided with the cleaning unit 2 in the cleaning area 113 adjacent to the processing area 112 on the working surface 111. When the nozzle 33 is blocked by the rubber material during the process of spraying the rubber material on the object to be processed 9 disposed in the processing area 112, or when the rubber material overflows around the nozzle 33, the control unit 4 can control the carrier driver 34 to drive the carrier assembly 31, so that the nozzle 33 moves to contact the cleaning film 22 of the cleaning unit 2 to remove the rubber material, thereby maintaining the smoothness of the process and achieving the effect of saving time and labor. Therefore, the purpose of the present invention can be achieved.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

1: Workbench 11: Machine body 111: Work surface 112: Processing area 113: Cleaning area 12: Side wall 13: Side track 2: Cleaning unit 21: Base 22: Cleaning film 221: Base layer 222: Adhesive layer 223: Cleaning layer 224: Protective layer 225, 225′, 225′′, 225a: Cleaning surface 226: Protrusion 227: Rib 228: Groove 229: Flocking fiber 230: Abrasive grains 3: Spraying unit 31: Carrier assembly 311: Track seat 312: Moving seat 313: Nozzle seat 32: Glue container 33: Nozzle 34: Carrier driver 341: Track driver 342: Horizontal driver 343: Vertical driver 35: Spray driver 4: Control unit 9: Object to be processed X: Left and right direction Y: Front and back direction Z: Up and down direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a front view illustrating an embodiment of the spraying device of the present invention; FIG. 2 is an incomplete side view of the embodiment; FIG. 3 is an incomplete cross-sectional view of a cleaning unit of the embodiment; FIG. 4 is a partially enlarged schematic diagram illustrating that a cleaning surface of a cleaning film of the cleaning unit has a number of spherical protrusions; FIG. 5 is a partially enlarged schematic diagram illustrating that the cleaning surface of the cleaning film has a number of wavy protrusions; FIG. 6 is a partially enlarged schematic diagram illustrating that the cleaning surface of the cleaning film has a number of grooves; FIG. 7 is a partially enlarged schematic diagram illustrating that the cleaning surface of the cleaning film has a number of flocked fibers; FIG8 is an incomplete front view of a spray unit of the embodiment; FIG9 is a block diagram of the embodiment; FIG10 is a view similar to FIG2, illustrating a nozzle of the spray unit adjacent to an object to be processed; and FIG11 is a view similar to FIG2, illustrating the nozzle contacting the cleaning film.

11: Machine body

111: Working surface

112: Processing area

113: Cleaning area

12: Side wall

13: Side track

2: Cleaning unit

21: Base

22: Cleaning film

3: Spraying unit

31: Carrier assembly

311: Track seat

312: Mobile seat

313: Nozzle holder

32: Glue container

33: Spray nozzle

9: Objects to be processed

Y: front and back direction

Z: Up and down direction

Claims (10)

A spraying device is used for spraying a rubber material on an object to be processed, and the spraying device comprises: A workbench having a work surface, the work surface having a processing area for the object to be processed, and a cleaning area adjacent to the processing area; A cleaning unit is arranged on the workbench and includes a base arranged in the cleaning area, and a flexible cleaning film arranged on the base; A spraying unit, movably disposed on the workbench and comprising a carrier assembly movable relative to the work surface, a nozzle disposed on the carrier assembly, and a carrier driver for driving the carrier assembly to move, the nozzle being movable with the carrier assembly and being used to spray the adhesive material on the workpiece and contact the cleaning film; and A control unit, disposed on the workbench and used to control the carrier driver. A spraying device as described in claim 1, wherein the cleaning film has a base layer disposed on the base, and a flexible cleaning layer disposed on a side of the base layer opposite to the base, the cleaning layer having a cleaning surface opposite to the side of the base layer and contacted by the nozzle. A spraying device as described in claim 2, wherein the cleaning surface of the cleaning layer has a plurality of protrusions, a plurality of grooves or a plurality of implanted fibers. A spray coating device as described in claim 2, wherein the cleaning film can be detachably disposed on the base and further has a backing layer disposed on a side of the base layer opposite to the cleaning layer, and the backing layer is used to adhere to the base. A spray coating device as described in claim 2, wherein the cleaning film also has a protective layer that can be removably attached to the cleaning surface. The spray coating device as described in claim 2, wherein the cleaning layer of the cleaning film is a mixture of silicone, resin and acrylic glue. A spray coating device as described in claim 2, wherein the cleaning layer of the cleaning film further has abrasive particles distributed on the cleaning surface. A coating device as described in claim 1, wherein the workbench includes two side rails higher than the work surface in an up-down direction, the side rails extend along a front-to-back direction and are spaced apart in a left-to-right direction, the carrier assembly of the coating unit has a rail seat, a movable seat and a nozzle seat, the left and right ends of the rail seat are respectively arranged on the side rails and can move relative to the side rails in the front-to-back direction, the movable seat is movably arranged on the rail seat along the left-to-right direction, the nozzle seat is movably arranged on the movable seat along the up-to-down direction, and the nozzle is arranged at the bottom end of the nozzle seat. A spraying device as described in claim 8, wherein the carrier driver has a track driving member for driving the track seat, a lateral driving member for driving the moving seat, and a longitudinal driving member for driving the nozzle seat. A spraying device as described in claim 1, wherein the spraying unit further includes a glue container and a spraying driver, the glue container is arranged on the carrier assembly and is used to hold the glue material, the nozzle is connected to the glue container, the spraying driver is arranged on the carrier assembly and is used to drive the glue material to be sprayed outward from the nozzle, and the control unit is also used to control the spraying driver.

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