Spraying device

Abstract

A spraying device comprises a workbench, a cleaning unit, a spraying unit and a control unit. The workbench is provided with a working face. The working face is provided with a machining area where a to-be-machined object is arranged and a cleaning area adjacent to the machining area. The cleaning unit comprises a cleaning film. The spraying unit is movably arranged on the workbench and comprises a carrier set, a nozzle and a carrier driver. The cleaning unit is arranged in the cleaning area, close to the machining area, of the working face, and when the nozzle is blocked by a glue material in the process of spraying the glue material on the to-be-machined object arranged in the machining area, the control unit can control the carrying seat driver to drive the carrying seat set; the nozzle is moved to contact with the cleaning film of the cleaning unit to clean the glue material, so that the smoothness of the manufacturing process can be maintained, and the effects of saving time and labor are achieved.

Description

Technical Field

[0001] The invention relates to a device for applying fluid to an object, in particular to a spraying device. Background Art

[0002] Existing spraying devices can be applied in different fields. For example, in the process of light-emitting diodes, different adhesives are coated into fluorescent layers or light-transmitting layers by spraying devices; or in the process of electronic parts, adhesives or solder flux are coated on circuit boards by spraying devices. Since the nozzle of the spraying device has a relatively narrow caliber, it is easy to be blocked by the adhesive, or when the adhesive overflows around the nozzle, the spraying device needs to be shut down and the nozzle cleaned manually. In addition to being time-consuming and labor-intensive, resulting in an unsmooth process, the manual cleaning cannot control the force and is prone to damage to the nozzle, which needs to be improved. Summary of the invention

[0003] The object of the present invention is to provide a spraying device which can maintain the smoothness of the process and save time and labor.

[0004] The spraying device of the present invention is suitable for spraying glue on an object to be processed, and the spraying device comprises 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 cleaning film arranged on the base and having flexibility. The spraying unit can be movably arranged on the workbench and includes a carrier group that can move relative to the work surface, a nozzle arranged on the carrier group, and a carrier driver for driving the carrier group to move. The nozzle can move with the carrier group and is used to spray the glue 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.

[0005] The spraying device of the present invention comprises a cleaning film having a base layer disposed on the base, and a flexible cleaning layer disposed on a side of the base layer opposite to the base, wherein the cleaning layer has a cleaning surface on a side opposite to the base layer and contacted by the nozzle.

[0006] In the spraying device of the present invention, the cleaning surface of the cleaning layer has a plurality of protrusions, a plurality of grooves or a plurality of flocking fibers.

[0007] In the spraying device of the present invention, the cleaning film can be detachably arranged on the base and further comprises a back adhesive layer arranged on the side of the base layer opposite to the cleaning layer, and the back adhesive layer is used to be adhered to the base.

[0008] In the spraying device of the present invention, the cleaning film further comprises a protective layer which is removably attached to the cleaning surface.

[0009] In the spraying device of the present invention, the cleaning layer of the cleaning film is mixed with silica gel, resin and acrylic glue.

[0010] In the spray coating device of the present invention, the cleaning layer of the cleaning film further comprises abrasive particles distributed on the cleaning surface.

[0011] The spraying device of the present invention, the workbench includes two side rails higher than the work surface in the up and down directions, the side rails extend in the front-to-back direction and are arranged at intervals in the left-to-right direction, the carrier group of the spraying 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 be moved in the front-to-back direction relative to the side rails, 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 and down direction, and the nozzle is arranged at the bottom end of the nozzle seat.

[0012] In the spraying device of the present invention, the carrier driver comprises a track driving member for driving the track seat, a transverse driving member for driving the movable seat, and a longitudinal driving member for driving the nozzle seat.

[0013] The spraying device of the present invention, the spraying unit also includes a glue container and a spraying driver, the glue container is arranged on the carrier group and is used to hold the glue material, the nozzle is connected to the glue container, the spraying driver is arranged on the carrier group 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.

[0014] The beneficial effect of the present invention is that the cleaning unit is arranged in the cleaning area adjacent to the processing area on the working surface. When the nozzle is blocked by the glue during spraying the glue on the object to be processed arranged in the processing area, or the glue overflows around the nozzle, the control unit can control the carrier driver to drive the carrier group to move the nozzle to contact the cleaning film of the cleaning unit to remove the glue, thereby maintaining the smoothness of the process and achieving the effect of saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0016] Figure 1 is a front view illustrating an embodiment of the spraying device of the present invention;

[0017] Figure 2 is a fragmentary side view of the embodiment;

[0018] Figure 3is a fragmentary cross-sectional view of a cleaning unit of the embodiment;

[0019] Figure 4 is a partially enlarged schematic diagram, illustrating that a cleaning surface of a cleaning film of the cleaning unit has a plurality of spherical protrusions;

[0020] Figure 5 is a partially enlarged schematic diagram, illustrating that the cleaning surface of the cleaning film has a plurality of wavy protrusions;

[0021] Figure 6 is a partially enlarged schematic diagram, illustrating that the cleaning surface of the cleaning film has a plurality of grooves;

[0022] Figure 7 is a partially enlarged schematic diagram, illustrating that the cleaning surface of the cleaning film has a plurality of flocking fibers;

[0023] Figure 8 is a fragmentary front view of a spray unit of the embodiment;

[0024] Fig. 9 is a block diagram of the embodiment;

[0025] Fig.10 is similar to Figure 2 A view showing that a nozzle of the spraying unit is adjacent to an object to be processed;

[0026] Fig.11 is similar to Figure 2 , illustrating that the nozzle contacts the cleaning film. DETAILED DESCRIPTION

[0027] See also Figure 1 , Figure 2 and Figure 3 An embodiment of the spraying device of the present invention is suitable for spraying a glue material (not shown) on a workpiece 9 to be processed. The spraying device comprises a workbench 1, a cleaning unit 2, a spraying unit 3 and a control unit 4.

[0028] 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 side in an up-down 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 are higher than the work surface 111 in the up-down direction Z, extend along the front-to-back direction Y and are respectively arranged on the side walls 12.

[0029] 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 membrane 22 detachably disposed on the base 21 .

[0030] 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 the side of the base layer 221 opposite to the backing layer 222, and a protective layer 224 that can be removably attached to the cleaning layer 223.

[0031] In this embodiment, the base layer 221 is made of polyethylene terephthalate (PET), but in other variations, the base layer 221 may be made of other polyesters, polyamide (PA), polyethylene (PE), or polypropylene (PP), etc., but is not limited thereto.

[0032] The adhesive layer 222 is made of an adhesive material, such as but not limited to rubber, silicone or acrylic adhesive.

[0033] 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.

[0034] In this embodiment, the cleaning surface 225 of the cleaning layer 223 is a flat surface, but in other variations, the cleaning surface 225 may also be, for example but not limited to, as follows: Figure 4 and Figure 5 As shown, the cleaning surface 225' has a plurality of protrusions 226, and the protrusions 226 may be, but are not limited to, spherical (e.g. Figure 4 ) or wavy (such as Figure 5 );like Figure 6 As shown, the cleaning surface 225" has a plurality of crisscrossing ridges 227 and a plurality of grooves 228 between the ridges 227. The ridges 227 and the grooves 228 can also be interchangeable. Figure 7 As shown, the cleaning surface 225 a has a plurality of flocking fibers 229 , and the cleaning layer 223 further has a plurality of abrasive particles 230 distributed on the surface of the top ends of the flocking fibers 229 .

[0035] In such Figure 7In a variation of the embodiment, the abrasive grains 230 are made of silicon carbide or aluminum oxide, and the particle size of the abrasive grains 230 is between 0.1 μm and 20 μm.

[0036] The protective layer 224 is a thin sheet made of polyethylene terephthalate. In this 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 contaminated by hair scraps, dust and other pollutants. The protective layer 224 is removed before use. Figure 7 In the variation shown, the protective layer 224 may be omitted to avoid deformation of the flocking fibers 229. Alternatively, when the abrasive particles 230 are distributed on the flat cleaning surface 225 to make the cleaning surface 225 rough (not shown), the protective layer 224 may be omitted from the cleaning film 22.

[0037] See also Figure 1 , Figure 2 and Figure 8 The spraying unit 3 can be 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 spraying driver 35.

[0038] 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-to-back 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.

[0039] The glue container 32 is disposed at the front side of the nozzle seat 313 and is used to contain the glue material.

[0040] The nozzle 33 is disposed at the bottom end of the spray head 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.

[0041] The carrier driver 34 is disposed on the carrier assembly 31 and is used to drive the carrier assembly 31 to move. The carrier driver 34 has a track driving member 341 disposed on the track seat 311 and used to drive the track seat 311, a transverse driving member 342 disposed on the moving seat 312 and used to drive the moving seat 312, and a longitudinal driving member 343 disposed on the nozzle seat 313 and used to drive the nozzle seat 313. In this embodiment, the track driving member 341, the transverse driving member 342 and the longitudinal driving member 343 are all motors.

[0042] 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 may also be a piezoelectric motor (not shown) connected to the glue container 32.

[0043] See also Figure 1 and Fig. 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.

[0044] See also Fig. 9 , Fig.10 and Fig.11 When the glue material needs to be sprayed on the object 9 to be processed, the control unit 4 controls the carrier driver 34 to drive the carrier group 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 glue material to be sprayed from the nozzle 33 to the predetermined position. When the nozzle 33 is blocked by the glue material, or the glue material overflows around the nozzle 33, the control unit 4 controls the carrier driver 34 to drive the carrier group 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 glue material. In this way, when the nozzle 33 is blocked, the present embodiment does not need to stop the machine for manual cleaning. It only needs to move the nozzle 33 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 move it back to the processing area 112 to continue spraying, so as to maintain the smoothness of the process.

[0045] It should be noted that the control unit 4 controls the carrier group 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 and down direction Z to poke and contact the cleaning film 22, the moving seat 312 drives the nozzle 33 to move back and forth in the left and 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 and right direction X and the front and rear direction Y.

[0046] In this embodiment, the cleaning surface 225 of the cleaning film 22 is a flat surface. However, in other variations, the cleaning surface 225 may be a flat surface according to the material or shape of the nozzle 33. Figures 4 to 7 Any one of the cleaning films 22. In addition, in Figure 7 In the variation example, 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.

[0047] The present invention arranges 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 adhesive during spraying the adhesive on the object 9 to be processed arranged in the processing area 112, or when the adhesive overflows around the nozzle 33, the control unit 4 can control the carrier driver 34 to drive the carrier group 31, so that the nozzle 33 moves to contact the cleaning film 22 of the cleaning unit 2 to remove the adhesive, thereby maintaining the process smoothness and achieving the effect of saving time and labor. Therefore, the purpose of the present invention can be achieved.

[0048] The above are merely embodiments of the present invention and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made according to the claims and description of the present invention are still within the scope of the present invention.

Claims

1. A spraying device, suitable for spraying adhesive material on a workpiece, characterized in that: The spraying device comprises: A workbench having a work surface, wherein the work surface has a processing area for placing the object to be processed, and a cleaning area adjacent to the processing area; A cleaning unit, disposed on the workbench and comprising a base disposed in the cleaning area, and a flexible cleaning film disposed on the base; A spraying unit, which is movably disposed on the workbench and includes a carrier group that can move relative to the work surface, a nozzle disposed on the carrier group, and a carrier driver for driving the carrier group to move, wherein the nozzle can move with the carrier group and is used to spray the glue material on the workpiece to be processed and to contact the cleaning film; and A control unit is disposed on the workbench and is used to control the carrier driver.

2. The spraying device according to claim 1, characterized in that: The cleaning film comprises 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 comprises a cleaning surface on a side opposite to the base layer and contacted by the nozzle.

3. The spraying device according to claim 2, characterized in that: The cleaning surface of the cleaning layer has a plurality of protrusions, a plurality of grooves or a plurality of flocking fibers.

4. The spraying device according to claim 2, characterized in that: The cleaning film can be detachably arranged on the base and further comprises a back adhesive layer arranged on a side of the base layer opposite to the cleaning layer, and the back adhesive layer is used for being adhered to the base.

5. The spraying device according to claim 2, characterized in that: The cleaning film also has a protective layer which is removably attached to the cleaning surface.

6. The spraying device according to claim 2, characterized in that: The cleaning layer of the cleaning film is mixed with silica gel, resin and acrylic glue.

7. The spraying device according to claim 2, characterized in that: The cleaning layer of the cleaning film further comprises abrasive particles distributed on the cleaning surface.

8. The spraying device according to claim 1, characterized in that: The workbench includes two side rails that are higher than the work surface in the up and down directions, the side rails extend in the front-to-back direction and are arranged at intervals in the left-to-right direction, the carrier group of the spray unit includes 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 be moved in the front-to-back direction relative to the side rails, 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 and down direction, and the nozzle is arranged at the bottom end of the nozzle seat.

9. The spraying device according to claim 8, characterized in that: The carrier driver comprises a track driving member for driving the track seat, a transverse driving member for driving the moving seat, and a longitudinal driving member for driving the nozzle seat.

10. The spraying device according to claim 1, characterized in that: The spraying unit also includes a glue container and a spraying driver. The glue container is arranged on the carrier group and is used to hold the glue material. The nozzle is connected to the glue container. The spraying driver is arranged on the carrier group and is used to drive the glue material to be sprayed outward from the nozzle. The control unit is also used to control the spraying driver.

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