CN111167638A - Electrostatic spraying method for manual feeding and manual feeding device for electrostatic spraying process - Google Patents
Electrostatic spraying method for manual feeding and manual feeding device for electrostatic spraying process Download PDFInfo
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- CN111167638A CN111167638A CN201811338848.XA CN201811338848A CN111167638A CN 111167638 A CN111167638 A CN 111167638A CN 201811338848 A CN201811338848 A CN 201811338848A CN 111167638 A CN111167638 A CN 111167638A
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- clamping
- electrostatic spraying
- feeding device
- manual feeding
- clamping jaw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/04—Processes for applying liquids or other fluent materials performed by spraying involving the use of an electrostatic field
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Abstract
The invention relates to an electrostatic spraying method for artificial feeding and an artificial feeding device for an electrostatic spraying process, wherein the spraying method comprises the following steps: manual feeding: manually placing a part on a manual feeding device, wherein the manual feeding device comprises at least one clamping jaw assembly, and the part is clamped by the at least one clamping jaw assembly; electrostatic spraying: electrostatic spraying the part; drying: drying the part after electrostatic spraying; artifical loading attachment contains: a foot switch; a control unit electrically connected to the foot switch; a fixed seat; at least one clamping jaw assembly which is arranged on the fixed seat, is connected with the control unit and comprises an actuator and two clamping jaws; the pedal switch enables the actuator to be switched back and forth between a non-actuating state and an actuating state through the control unit; each clamping jaw is connected with the actuator, and the two clamping jaws are controlled by the actuator to open and close; when the actuator is in an actuating state, the two clamping jaws clamp the part; the invention can improve the yield of electrostatic spraying products.
Description
Technical Field
The invention relates to an electrostatic spraying process and a clamp used in the process, in particular to a process for electrostatic spraying solder mask green paint on a printed circuit board and a clamp used for clamping the printed circuit board in the process.
Background
When the existing printed circuit board is subjected to an electrostatic spraying process, the circuit board with the manufactured surface circuit is flatly placed on a roller or conveyor belt type feeding device one by one, and then the circuit board is conveyed into electrostatic spraying process equipment by the roller or conveyor belt type feeding device to carry out subsequent solder mask green paint electrostatic spraying and coating drying operations.
However, before the electrostatic spraying process is performed on a part of the circuit board, the special coating is coated on the surface of the circuit board in advance, but the special coating on the surface of the circuit board is easy to peel off and damage due to contact with a roller or a conveyer belt in the loading process, so that the product is poor; in addition, the thin and narrow circuit on the surface of the circuit board is also easily damaged by the friction of the roller or the conveyer belt in the feeding process.
In addition, after the electrostatic spraying, the circuit board needs to be dried again, and sometimes the electrostatic spraying machine and the drying machine are not connected together, so the circuit board after electrostatic spraying needs to be moved to the drying machine again, and the circuit board after electrostatic spraying is sent to the drying machine again through the feeding device, and at this time, the same problem occurs, and the circuit board is easy to peel off and damage due to contact with the roller or the conveyer belt, and so on.
Therefore, the electrostatic spraying process and the feeding device of the electrostatic spraying process in the prior art need to be improved.
Disclosure of Invention
In view of the foregoing disadvantages and drawbacks of the prior art, the present invention provides an electrostatic spraying method and an electrostatic spraying apparatus for manual feeding, wherein a circuit board enters an electrostatic spraying device through the manual feeding apparatus, so that the surface of the circuit board is prevented from being damaged due to contact or friction with a roller or a conveyor belt.
In order to achieve the above-mentioned creation purpose, the present invention adopts a technical means to design an artificial feeding device for electrostatic spraying process for clamping a part, the artificial feeding device comprising:
a foot switch;
a control unit electrically connected with the foot switch;
a fixed seat;
the clamping jaw assembly is arranged on the fixed seat and connected with the control unit, and comprises an actuator and two clamping jaws; the actuator is connected with the control unit, the actuator has a non-operating state and an operating state, and the foot switch enables the actuator to be switched back and forth between the non-operating state and the operating state through the control unit; the two opposite ends of each clamping jaw are an actuating end and a clamping end, the actuating end is connected with the actuator, and the two clamping jaws are controlled by the actuator to open and close;
when the actuator is in the actuating state, the clamping ends of the two clamping jaws clamp the part.
In order to achieve the above creation purpose, the present invention further provides an electrostatic spraying method for manual feeding, which comprises the following steps:
manual feeding: manually placing a part on a manual feeding device, wherein the manual feeding device comprises at least one clamping jaw assembly, and the part is clamped by the at least one clamping jaw assembly;
electrostatic spraying: electrostatic spraying the part;
drying: and drying the part subjected to electrostatic spraying.
In order to achieve the above creation purpose, the present invention further provides an electrostatic spraying method for manual feeding, which comprises the following steps:
part feeding: placing a part on a feeding device;
electrostatic spraying: electrostatic spraying the part;
manual feeding: manually placing the part subjected to electrostatic spraying on an artificial feeding device, wherein the artificial feeding device comprises at least one clamping jaw assembly, and the part is clamped by the at least one clamping jaw assembly;
drying: and drying the part subjected to electrostatic spraying.
The invention has the advantages that the manual feeding device is arranged in the existing electrostatic spraying process to replace the existing roller or conveyer belt type feeding device, so that the circuit board is fed into the electrostatic spraying equipment; the manual feeding device clamps one end of the circuit board by using the clamping jaw, and the feeding device cannot be contacted with a special coating or a narrow line on the surface of the circuit board, so that the phenomenon that the special coating or the narrow line of the circuit board is damaged in the feeding process to reduce the yield of products can be avoided.
Further, in the manual feeding device for the electrostatic spraying process, the control unit is an air pressure solenoid valve, and the actuator is controlled by air pressure to further control the opening and closing of the two clamping jaws.
Further, in the manual feeding device for the electrostatic spraying process, the at least one clamping jaw assembly is a two-chuck parallel mechanical clamping jaw, and the two clamping jaws are linearly opened and closed towards or away from each other; the clamping end of each clamping jaw is provided with a clamping plane, and the clamping planes of the two clamping jaws are parallel to each other.
Further, in the manual feeding device for the electrostatic spraying process, the pneumatic solenoid valve drives the actuator of the at least one clamping jaw assembly by pneumatic pressure to convert from the non-operating state to the operating state, and the pneumatic solenoid valve drives the actuator by pneumatic pressure to convert from the operating state to the non-operating state.
Furthermore, the manual feeding device of the electrostatic spraying process further comprises at least one positioning column, wherein the fixing seat is concavely provided with at least one positioning long hole, the at least one positioning long hole extends leftwards and rightwards, and the at least one positioning column penetrates through the at least one positioning long hole and can be fixed at any position of the at least one positioning long hole.
Furthermore, the manual feeding device for the electrostatic spraying process is characterized in that the fixing seat is provided with a plurality of positioning marks, and the positioning marks are located on the forward side face of the fixing seat and are arranged at equal intervals.
Furthermore, the manual feeding device for the electrostatic spraying process further comprises a circular wall and a translational feeding machine; the annular wall surrounds and covers the foot switch, the control unit, the fixed seat and the at least one clamping jaw assembly, and a personnel working opening is formed in one side face of the annular wall; the translational feeder penetrates through the annular wall and extends into the annular wall.
Furthermore, the manual feeding device for the electrostatic spraying process further comprises a rotating mechanism and at least one clamping assembly; the rotating mechanism is arranged in the annular wall; the at least one clamping assembly is arranged on the rotating mechanism, and the rotating mechanism is used for rotating the at least one clamping assembly; the rotating mechanism enables the at least one clamping component to rotate to a position corresponding to the at least one clamping jaw component or rotate to the position above the translation feeding machine, and when the at least one clamping component corresponds to the position of the at least one clamping jaw component, the at least one clamping component can clamp the part of the at least one clamping jaw component.
Further, the electrostatic spraying method of artificial feeding comprises the following steps:
in the step of 'manual feeding', the manual feeding device further comprises a foot switch, a control unit and a fixed seat; the control unit is electrically connected with the foot switch; the clamping jaw assembly is arranged on the fixed seat and connected with the control unit, and comprises an actuator and two clamping jaws; after the part is placed between the two clamping jaws of the at least one clamping jaw assembly of the manual feeding device, the foot switch is trampled to drive the two clamping jaws of the at least one clamping jaw assembly to clamp the part.
Further, the electrostatic spraying method of artificial feeding comprises the following steps:
in the step of 'manual feeding', the manual feeding device further comprises a circular wall and a translational feeding machine; the annular wall is wrapped around the foot switch, the control unit, the fixed seat and the at least one clamping jaw assembly, and a personnel working opening is formed in one side face of the annular wall; the translational feeding machine penetrates through the annular wall and extends into the annular wall; wherein, a user manually places the part on the manual feeding device at the manual operation opening.
Further, the electrostatic spraying method of artificial feeding comprises the following steps:
in the step of manual feeding, the manual feeding device further comprises a rotating mechanism and a plurality of clamping components; the rotating mechanism is arranged in the annular wall; the plurality of clamping groups are arranged on the rotating mechanism and are arranged at intervals in a surrounding manner; after the part is placed on the at least one clamping jaw assembly of the manual feeding device, the rotating mechanism rotates the plurality of clamping assemblies and enables one clamping assembly to rotate at a position corresponding to the at least one clamping jaw assembly, and then the clamping assembly clamps the part of the at least one clamping jaw assembly.
Drawings
FIG. 1 is a schematic side view of a first embodiment of the manual feeding device of the present invention;
FIG. 2 is a perspective external view of a portion of the components of the first embodiment of the manual loading apparatus of the present invention;
FIG. 3 is another perspective exterior view of a portion of the components of the first embodiment of the manual loading unit of the present invention;
FIG. 4 is an exploded view of part of the components of the first embodiment of the manual feeding device of the present invention;
FIG. 5 is a front view of a first embodiment of the manual loading apparatus of the present invention;
FIG. 6 is a schematic diagram of the operation of the first embodiment of the manual feeding device of the present invention;
FIG. 7 is another schematic diagram of the first embodiment of the manual feeding device of the present invention;
FIG. 8 is a schematic top view of a second embodiment of the manual feeding device of the present invention;
FIG. 9 is a flow chart of a first embodiment of the manual charged electrostatic spraying method of the present invention;
FIG. 10 is a schematic view of an apparatus of a first embodiment of the manual charged electrostatic spraying method of the present invention;
FIG. 11 is a flow chart of a second embodiment of the manual charged electrostatic spraying method of the present invention;
FIG. 12 is a schematic view of a spray booth for carrying out the electrostatic spraying step of the manual charged electrostatic spraying method of the present invention;
FIG. 13 is a schematic diagram of a drying section for carrying out the drying step of the electrostatic coating method for manual feeding of the present invention.
Description of the symbols:
10 foot switch 20 control unit
30 fixing seat 31 positioning long hole
32 positioning mark 33 positioning nut groove
40 jaw assembly 41 actuator
411 drive part 42 clamping jaw
421 actuating end 422 clamping end
423 positioning column with clamping plane 50
51 positioning bolt 52 positioning nut
60A artificial feeding device 80A ring wall
81A manual work opening 90A translation material loading machine
60A manual feeding device and 60B manual feeding device
60C manual feeding device 70C feeding device
Spray room for part A and part B
C drying section
Detailed Description
The technical means adopted by the invention to achieve the predetermined object of the invention are further described below with reference to the drawings and the preferred embodiments of the invention.
Referring to fig. 1 to 3, a first embodiment of the manual feeding device for electrostatic spraying process of the present invention includes a foot switch 10, a control unit 20, a fixing base 30, at least one positioning column 50 and at least one clamping jaw assembly 40.
The aforementioned control unit 20 is electrically connected to the foot switch 10, the jaw assembly 40 is connected to the control unit 20 and controlled by the control unit 20 to move, the jaw assembly 40 is disposed on the fixing base 30, and the fixing base 30 is used to be fixed to other equipment, in other words, the jaw assembly 40 is fixed to other equipment through the fixing base 30; the positioning posts 50 are disposed on the fixing base 30 to assist clamping.
Referring to fig. 2 and fig. 3, the fixing base 30 is concavely provided with two positioning long holes 31 in the embodiment, the two positioning long holes 31 linearly extend left and right, the two positioning columns 50 respectively penetrate through the two positioning long holes 31 and can be fixed at any position of the positioning long holes 31, but not limited thereto, the fixing base 30 may have no positioning long hole 31; in addition, in other embodiments, the number of the positioning columns 50 and the positioning long holes 31 may be only one.
Referring to fig. 3 to 5, in the present embodiment, the positioning column 50 includes a positioning bolt 51 and a positioning nut 52, two positioning nut slots 33 are concavely disposed on the rear side of the fixing base 30, the bottom of the positioning nut slot 33 is communicated with the positioning long hole 31, the positioning nut 52 is slidably but non-rotatably disposed in the positioning nut slot 33, the positioning bolt 51 slidably penetrates through the positioning long hole 31 and is screwed into the positioning bolt 51, the position of the positioning column 50 in the positioning long hole 31 can be adjusted when the positioning bolt 51 is unscrewed, and the positioning column 50 can be fixed at the adjusted position by screwing the positioning bolt 51, but the structure and the combination manner of the positioning column 50 are not limited thereto, and only the positioning column 50 can be fixed at any position of the positioning long hole 31.
Referring to fig. 2 and 3, in the present embodiment, the fixing base 30 has a plurality of positioning marks 32, the positioning marks 32 are located on a front side of the fixing base 30 and are disposed at equal intervals, and when the clamped component a is a square plate, the width and the transverse position of the square plate relative to the fixing base 30 can be known by the positioning marks 32.
Referring to fig. 1, fig. 2, fig. 4, fig. 6 and fig. 7, the number of the at least one clamping jaw assembly 40 is two in the embodiment, but the number of the clamping jaw assembly 40 may be only one, the two clamping jaw assemblies 40 are disposed on the fixing base 30 and connected to the control unit 20, and each clamping jaw assembly 40 includes an actuator 41 and two clamping jaws 42; the actuator 41 has a non-operating state (as shown in fig. 7) and an operating state (as shown in fig. 6), and the foot switch 10 can switch the actuator 41 back and forth between the non-operating state and the operating state through the control unit 20; two opposite ends of the two clamping jaws 42 are an actuating end 421 and a clamping end 422, the actuating end 421 is connected to the actuator 41, and the two clamping jaws 42 are controlled by the actuator 41 to open and close; when the actuator 41 is in the activated state, the clamping ends 422 of the two clamping jaws 42 clamp the component.
Referring to fig. 1 and 2, in the present embodiment, the control unit 20 is an air pressure solenoid valve, one end of the air pressure solenoid valve is connected to external compressed air, and the other end of the air pressure solenoid valve is connected to the actuator 41 through two air pipes, and controls the actuator 41 by controlling the flow direction of the air pressure; the actuator 41 is a pneumatic actuator corresponding to a pneumatic solenoid valve, but the power source of the control unit 20 and the actuator 41 is not limited to compressed air, for example, the power source may also be electric power, when the power source is electric power, the control unit 20 is an electronic controller, the actuator 41 may be a linear motor, and the electronic controller controls the linear motor through the electric current; in addition, in the embodiment, the action forms of the actuator 41 and the control unit 20 are double-acting, that is, the pneumatic solenoid valve can drive the actuator 41 of the two jaw assemblies 40 by air pressure to switch from the inactive state to the active state, and the pneumatic solenoid valve can drive the actuator 41 by air pressure to switch from the active state to the inactive state, but not limited thereto, the action forms of the actuator 41 and the control unit 20 may also be single-acting, for example, the pneumatic solenoid valve can drive the actuator 41 of the two jaw assemblies 40 by air pressure to switch from the inactive state to the active state, but the actuator 41 needs to be driven by other non-air pressure methods such as a spring disposed inside the actuator 41 when the actuator 41 is switched from the active state to the inactive state.
Referring to fig. 4, 6 and 7, in the present embodiment, the clamping jaw assembly 40 is a two-chuck parallel mechanical clamping jaw, one end of the actuator 41 has two driving portions 411 that open and close linearly toward or away from each other, and the actuating ends 421 of the two clamping jaws are respectively connected to the two driving portions 411, so that the actuator 41 makes the two clamping jaws 42 open and close linearly toward or away from each other; the holding end 422 of each holding jaw 42 has a holding plane 423, the holding planes 423 of the two holding jaws 42 are parallel to each other, by holding in plane and making the holding planes 423 parallel to each other, when holding a flat plate-like part such as a circuit board, the holding plane 423 can be in surface contact with both planes of the flat plate-like part, and thus has a large contact area to be held stably without clamping the part too intensively by a holding force, further, by using parallel mechanical holding jaws in which the two driving portions 411 are linearly opened and closed toward or away from each other, when the thickness of the flat plate-like part increases or decreases, the contact of the holding plane 423 with the flat plate-like part can be maintained in surface contact without becoming line contact (if the two driving portions 411 open and close the holding planes 423 of the two holding jaws 42 toward or away from each other in a rotating manner, when the thickness of the flat plate-like part changes, the contact between the clamping plane 423 and the plate-like component is changed from surface contact to line contact), and therefore the clamping stability of the two clamping jaws 42 can be maintained, but the clamping type of the clamping jaw assembly 40 is not limited to two parallel mechanical clamping jaws, and other types of pneumatic actuators and combinations of clamping jaws can be adopted, for example, an actuator 41 with only a single driving portion can be used, that is, only one clamping jaw 42 moves, and the other clamping jaw 42 does not move, so that when the clamping jaw is used, the component a can still be pushed against the fixed clamping jaw 42 through the movable clamping jaw 42 to achieve the clamping effect, and only when the actuator is in an activated state, the clamping ends of the two clamping jaws can clamp the component a.
Referring to fig. 1, fig. 3 and fig. 5, when the present invention is used, the positions of the two positioning columns 50 are adjusted first, and a user determines a better position of the part a in the space when the part a is clamped by the manual feeding device according to the specification of the feeding equipment of the subsequent process, so as to know a better positioning mark 32 corresponding to the left side or the right side of the part a when the part a is clamped at the better position of the manual feeding device; the foot switch 10 is used to switch the actuator 41 to the inactive state, place one end of the part a between the clamping jaws 42 of the two clamping jaw assemblies 40, and make one end of the part a abut against the bottom of the fixed seat 30 upwards and forwards, then move the part a to the left or right until the left or right side of the part a is correctly located the mark 32, then adjust the positions of the two positioning columns 50, make the two positioning columns 50 abut against the two opposite sides of the part a respectively to limit the lateral position of the part a relative to the manual feeding device, so that when the parts a with the same shape are manually placed, the lateral position of the part a can be accurately reproduced by the limitation of the two positioning columns 50.
After the positioning column 50 is adjusted, the actuator 41 is switched to the inactive state, the upper end of the part a is attached to the fixing base 30, the user steps on the foot switch 10, the foot switch 10 triggers the control unit 20, the control unit 20 changes the flow direction of the compressed air, so that the actuators 41 of the two jaw assemblies 40 are switched to the active state, the two driving portions 411 of the actuators 41 are pushed by the air pressure to be closed, the two jaws 42 connected with the actuators are driven to be closed to clamp the part a, at this time, the part a is manually clamped at a preferred position, and a feeding mechanism of a subsequent process of the part a can clamp or connect the part a in other manners from the preferred position.
When the feeding mechanism of the subsequent process is connected with the part A through clamping or other methods and the clamping of the manual feeding device of the invention on the part A is to be released, the pedal switch 10 can be used again to switch the actuator 41 to the non-actuation state, at the moment, the part A is separated from the clamping device, the part A enters the subsequent process equipment, and the invention can continuously clamp a new part A.
Referring to fig. 8, the second embodiment of the manual feeding device for electrostatic spraying process of the present invention is substantially the same as the first embodiment, except that it further comprises a ring wall 80A, a translation feeding device 90A, a rotating mechanism 100A and a plurality of clamping assemblies 110A.
The annular wall 80A surrounds and covers the manual feeding device 60A as in the first embodiment, and a manual opening 81A is formed in one side surface of the annular wall 80A; the translation feeder 90A penetrates the annular wall 80A and extends into the annular wall 80A; the ring wall 80A may be an equipment housing frequently used by automation equipment, and the translation feeder 90A uses a roller or a conveyor belt to convey the parts from the outside of the ring wall 80A to a specific position inside the ring wall 80A; the user can stand at the manual opening 81A of the annular wall 80A to manually cause the manual feeding device 60A to clamp the parts.
The rotating mechanism 100A is arranged in the annular wall 80A, the four clamping assemblies 110A are arranged on the rotating mechanism 100A and are arranged at intervals in a surrounding manner, but the number of the clamping assemblies 110A can be only one; the rotating mechanism 100A is used for rotating the clamping assembly 110A; the rotating mechanism 100A can rotate one of the clamping assemblies 110A to a position corresponding to the jaw assembly of the at least one manual feeding device 60A, and at this time, the clamping assembly 110A can clamp the part clamped by the jaw assembly of the manual feeding device 60A; the rotating mechanism 100A can also rotate one of the clamping assemblies 110A to a position above the translation feeder 90A, and at this time, the clamping assembly 110A can clamp the part on the translation feeder 90A; by providing the rotating mechanism 100A, the clamping assembly 110A can be rotated to clamp the components located on the translational loader 90A, or alternatively, the components of the gripper assembly connected to the manual loader 60A.
When the second embodiment is used, the second embodiment has two operation modes of manual feeding and automatic feeding:
in the automatic feeding mode, the feeding device of the present embodiment is the same as the roller or belt type feeding device of the prior art; a plurality of parts are placed at one end of the translational loading machine 90A outside the annular wall 80A, the translational loading machine 90A conveys the parts one by one from one end of the translational loading machine 90A outside the annular wall 80A to one end of the translational loading machine 90A inside the annular wall 80A, at this time, the holding assembly 110A above the translational loading machine 90A holds the parts, and then the parts are rotated to the position corresponding to the feeding mechanism of the subsequent process through the rotation of the rotating mechanism 100A, but in the automatic loading mode, the manner of conveying the parts from one end of the translational loading machine 90A inside the annular wall 80A to the position corresponding to the feeding mechanism of the subsequent process is not limited by the rotating mechanism 100A and the holding assembly 110A, and other manners may be used to convey the parts to the position corresponding to the feeding mechanism of the subsequent process, for example, a multi-axis robot arm may also be used.
In the manual feeding mode, a user manually enables the manual feeding device 60A to clamp the part through the manual operation opening 81A, then the clamping assembly 110A corresponding to the manual feeding device 60A clamps the part a, then the manual feeding device 60A releases the clamping of the part a, and at this time, the part is clamped by the clamping assembly 110A; then, the clamping assembly 110A transfers the part to the feeding mechanism of the subsequent process by the rotation of the rotating mechanism 100A, but in the manual feeding mode, the manner of transferring the part a from the manual feeding device 60A to the position corresponding to the feeding mechanism of the subsequent process is not limited to the rotating mechanism 100A and the clamping assembly 110A, and other manners may be used to transfer the part a to the position corresponding to the feeding mechanism of the subsequent process, for example, a multi-axis robot may also be used.
Referring to fig. 9 and 10, a first embodiment of the electrostatic spraying method for artificial feeding of the present invention includes the following steps:
manual feeding (S1): manually placing the part on the manual feeding device 60B, wherein the manual feeding device 60B at least comprises at least one clamping jaw assembly, and particularly, the manual feeding device 60B clamps the part through the at least one clamping jaw assembly; in this embodiment, the manual feeding device 60B is the same as the manual feeding device of the electrostatic spraying process in the first embodiment, and therefore, the description thereof is not repeated, but is not limited thereto; after the parts are placed between the two clamping jaws of the at least one clamping jaw assembly of the manual feeding device 60B, the foot switch is stepped on to drive the two clamping jaw clamping parts of the at least one clamping jaw assembly, but the mode for driving the clamping parts of the manual feeding device is not limited to the stepping on of the foot switch, in other preferred embodiments, the manual feeding device 60B may also only include the at least one clamping jaw assembly, and the opening and closing of the clamping jaw assembly is controlled by a mode other than the combination of the foot switch, the control unit and the actuator.
Electrostatic spraying (S2): carrying out electrostatic spraying on the part A; in this embodiment, a conveying mechanism moves the parts of the manual feeding device 60B to a spraying room B, and electrostatic spraying is performed in the spraying room B, but the manner of electrostatic spraying is not limited thereto, and the conveying manner is not limited thereto, for example, the manual feeding device 60B can directly move the parts to the spraying room B.
Drying (S3): drying the part A after electrostatic spraying; in this embodiment, the part a after electrostatic spraying is automatically conveyed to the drying section C for drying by another conveying mechanism at the rear end of the spraying room B, but the conveying manner is not limited thereto.
In addition, in the manual feeding (S1) step of the first embodiment of the electrostatic spraying method, the manual feeding device 60B may be the same as the manual feeding device of the electrostatic spraying process of the second embodiment, and the manual operation opening 81A and the translation feeding device 90A may be used to change the function into the dual functions of automatic feeding or manual feeding.
Referring to fig. 11 to 13, a second embodiment of the electrostatic spraying method for manual feeding according to the present invention is substantially the same as the first embodiment, and the difference is that in the first embodiment, the electrostatic spraying apparatus and the drying apparatus are combined together, so that the electrostatic spraying apparatus is immediately dried after the electrostatic spraying is finished, but in the second embodiment, the electrostatic spraying apparatus and the drying apparatus are separately arranged, so that the parts after electrostatic spraying need to be moved to the drying apparatus, and thus the feeding is required before the electrostatic spraying and before the drying; thus, in particular, the second embodiment comprises the following steps:
part feeding (S1): placing the part on a feeding device 70C; the parts loading (S1) step of the second embodiment may be the same as the parts loading (S1) step of the first embodiment, but also employs an automatic loading manner of a roller or a conveyor belt as described in the prior art.
Electrostatic spraying (S2): carrying out electrostatic spraying on the part A; the electrostatic painting (S2) step of the second embodiment may be the same as the electrostatic painting (S2) step of the first embodiment.
Manual feeding (S3): moving the part A subjected to electrostatic spraying to a feeding position of drying equipment, and manually placing the part A on an artificial feeding device 60C of the drying equipment, wherein the artificial feeding device 60C comprises at least one clamping jaw assembly, and the part is clamped by the at least one clamping jaw assembly; the manual loading (S3) step of the second embodiment may be the same as the parts loading (S1) step of the first embodiment.
Drying (S4): drying the part after electrostatic spraying; the drying (S4) step of the second embodiment may be the same as the drying (S3) step of the first embodiment.
The manual feeding device and the electrostatic spraying method for manual feeding can effectively avoid the reduction of the product yield caused by the damage of special paint or narrow lines of the circuit board in the feeding process.
To achieve the foregoing objective, the core concept of the present invention is as follows:
the production mode of the electrostatic spraying machine is a mode of clamping a plate by a hanging bracket, conveying the plate to a spraying room by a conveyor, and then conveying and handing over each section, wherein a processed object is a Printed Circuit Board (PCB), the use purpose of the process is a solder-resisting green paint process of the printed circuit board, the function is to control equipment in a computer mode, the solder-resisting green paint electrostatic spraying and drying are carried out, the equipment comprises a feeding section, a spraying section, a cleaning section, a heating section, a cooling discharging section and other components, and the operation flow is approximate: an automatic feeding conveyor or a manual feeding mechanism, four-cantilever feeding, feeding transverse conveying, spraying room plate front spraying section, spraying room plate back spraying section, spraying room rear conveying, plate drying and hanger cleaning; the working principle, the processing object and the detailed operation flow are as follows:
feeding materials: firstly, conveying a hanging bracket to an overturning and feeding section from a front temporary storage conveying section, handing over a plate to a four-spiral-arm chuck through the overturning and feeding section at the same time, handing over the plate to the hanging bracket through the rotation of the four-spiral arm, and clamping the plate by the hanging bracket and conveying the plate to a spraying room through a chain; in addition, the plate can be manually placed on the clamping jaws of the feeding mechanism to be handed over to the four-spiral-arm chuck by using a manual feeding mode of the feeding mechanism, then the four-spiral arms rotate in the same mode to hand over the plate to the hanging bracket, and the hanging bracket clamps the plate and conveys the plate to the spraying room through the chain.
Spraying: the spraying rooms are divided into two rooms, more than two groups of electrostatic spraying guns are arranged in each spraying room, the electrostatic spraying guns are air pressure rotating type spraying guns driven by compressed air, the rotating speed of the spraying guns can be high or low by setting the driving air pressure, the highest rotating speed can reach 60000 r/min, and the best rotating speed is achieved by using high rotating speed; a booster and a controller are hidden in the electrostatic spray gun, the booster generates static electricity through current and capacitance, the controller has the functions of controlling the current transmission and upper and lower limit numerical values of the booster, controlling to generate high static voltage in a safety numerical value, conducting the static electricity to ink through the interior of the spray gun, enabling the ink with the static electricity to be sprayed out by compressed air after being rotated and atomized at high speed through the spray gun, and enabling the ink to be adsorbed on the surface of a plate through an electrostatic attraction principle in the air; when the electrostatic spray gun is used for spraying, the electrostatic spray gun adopts an up-and-down reciprocating gauge to move for spraying, and the up-and-down movement is realized by matching a high-horsepower servo motor with a precise ball screw and a slide rail, so that the electrostatic spray gun can keep a stable spraying effect in the process of moving up and down at a high speed; the lifting reciprocating stroke of the electrostatic spray gun can be automatically set according to the size method of the fed substrate to obtain the optimal reciprocating motion curve sprayed plate.
Cleaning a hanger, heating and drying plates and cooling and discharging: after spraying, the hanger plate continuously moves to the discharging transverse moving section on the conveyor and then is separated from the hanger through the clamp opening mechanism, the plate is conveyed to the drying section to be dried, and the hanger plate is conveyed to the cleaning section to be cleaned, so that the production mode is circulated.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. An artificial feeding device for electrostatic spraying process, which is used for clamping a part, and is characterized in that the artificial feeding device comprises:
a foot switch;
a control unit electrically connected with the foot switch;
a fixed seat;
the clamping jaw assembly is arranged on the fixed seat and connected with the control unit, and comprises an actuator and two clamping jaws; the actuator is connected with the control unit, the actuator has a non-operating state and an operating state, and the foot switch enables the actuator to be switched back and forth between the non-operating state and the operating state through the control unit; the two opposite ends of each clamping jaw are an actuating end and a clamping end, the actuating end is connected with the actuator, and the two clamping jaws are controlled by the actuator to open and close;
when the actuator is in the actuating state, the clamping ends of the two clamping jaws clamp the part.
2. The manual feeding device for electrostatic spraying process as claimed in claim 1, wherein the control unit is a pneumatic solenoid valve, and the actuator is controlled by air pressure, and the opening and closing of the two clamping jaws are further controlled.
3. The manual feeding device for electrostatic spraying process of claim 2, wherein the at least one clamping jaw assembly is a two-chuck parallel mechanical clamping jaw which linearly opens and closes the two clamping jaws towards or away from each other; the clamping end of each clamping jaw is provided with a clamping plane, and the clamping planes of the two clamping jaws are parallel to each other.
4. The manual feeding device for electrostatic spraying process of claim 2, wherein the pneumatic solenoid valve drives the actuator of the at least one clamping jaw assembly by pneumatic pressure to switch from the inactive state to the active state, and the pneumatic solenoid valve drives the actuator by pneumatic pressure to switch from the active state to the inactive state.
5. The manual feeding device for electrostatic spraying process of claim 1, further comprising at least one positioning post, wherein the fixing base is concavely provided with at least one positioning long hole, the at least one positioning long hole extends left and right, and the at least one positioning post is inserted into the at least one positioning long hole and can be fixed at any position of the at least one positioning long hole.
6. The manual feeding device for electrostatic spraying process according to claim 1, wherein the fixing base has a plurality of positioning marks, and the positioning marks are located on a forward side of the fixing base and are arranged at equal intervals.
7. The manual feeding device for electrostatic spraying process of any one of claims 1 to 6, further comprising a circular wall and a translational feeder; the annular wall surrounds and covers the foot switch, the control unit, the fixed seat and the at least one clamping jaw assembly, and a personnel working opening is formed in one side face of the annular wall; the translational feeder penetrates through the annular wall and extends into the annular wall.
8. The manual feeding device for electrostatic spraying process of claim 7, further comprising a rotating mechanism and at least one clamping assembly; the rotating mechanism is arranged in the annular wall; the at least one clamping assembly is arranged on the rotating mechanism, and the rotating mechanism is used for rotating the at least one clamping assembly; the rotating mechanism enables the at least one clamping component to rotate to a position corresponding to the at least one clamping jaw component or rotate to the position above the translation feeding machine, and when the at least one clamping component corresponds to the position of the at least one clamping jaw component, the at least one clamping component can clamp the part of the at least one clamping jaw component.
9. An electrostatic spraying method for manual feeding is characterized by comprising the following steps:
manual feeding: manually placing a part on a manual feeding device, wherein the manual feeding device comprises at least one clamping jaw assembly, and the part is clamped by the at least one clamping jaw assembly;
electrostatic spraying: electrostatic spraying the part;
drying: and drying the part subjected to electrostatic spraying.
10. The electrostatic coating method of artificial feeding according to claim 9, characterized in that:
in the step of 'manual feeding', the manual feeding device further comprises a foot switch, a control unit and a fixed seat; the control unit is electrically connected with the foot switch; the clamping jaw assembly is arranged on the fixed seat and connected with the control unit, and comprises an actuator and two clamping jaws; after the part is placed between the two clamping jaws of the at least one clamping jaw assembly of the manual feeding device, the foot switch is trampled to drive the two clamping jaws of the at least one clamping jaw assembly to clamp the part.
11. The electrostatic coating method of artificial feeding according to claim 10, characterized in that:
in the step of 'manual feeding', the manual feeding device further comprises a circular wall and a translational feeding machine; the annular wall is wrapped around the foot switch, the control unit, the fixed seat and the at least one clamping jaw assembly, and a personnel working opening is formed in one side face of the annular wall; the translational feeding machine penetrates through the annular wall and extends into the annular wall; wherein, a user manually places the part on the manual feeding device at the manual operation opening.
12. The artificially-charged electrostatic spraying method according to claim 11, wherein:
in the step of manual feeding, the manual feeding device further comprises a rotating mechanism and a plurality of clamping components; the rotating mechanism is arranged in the annular wall; the plurality of clamping groups are arranged on the rotating mechanism and are arranged at intervals in a surrounding manner; after the part is placed on the at least one clamping jaw assembly of the manual feeding device, the rotating mechanism rotates the plurality of clamping assemblies and enables one clamping assembly to rotate at a position corresponding to the at least one clamping jaw assembly, and then the clamping assembly clamps the part of the at least one clamping jaw assembly.
13. An electrostatic spraying method for manual feeding is characterized by comprising the following steps:
part feeding: placing a part on a feeding device;
electrostatic spraying: electrostatic spraying the part;
manual feeding: manually placing the part subjected to electrostatic spraying on an artificial feeding device, wherein the artificial feeding device comprises at least one clamping jaw assembly, and the part is clamped by the at least one clamping jaw assembly;
drying: and drying the part subjected to electrostatic spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338848.XA CN111167638A (en) | 2018-11-12 | 2018-11-12 | Electrostatic spraying method for manual feeding and manual feeding device for electrostatic spraying process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811338848.XA CN111167638A (en) | 2018-11-12 | 2018-11-12 | Electrostatic spraying method for manual feeding and manual feeding device for electrostatic spraying process |
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| CN111167638A true CN111167638A (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811338848.XA Pending CN111167638A (en) | 2018-11-12 | 2018-11-12 | Electrostatic spraying method for manual feeding and manual feeding device for electrostatic spraying process |
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| CN (1) | CN111167638A (en) |
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