Three-proofing paint spraying equipment for PCBA (printed circuit board assembly)

Abstract

The utility model discloses three-proofing paint spraying equipment of a PCBA (Printed Circuit Board Assembly), and relates to the technical field of electronic component processing. The spraying device comprises a belt conveyor, side baffles, a spraying pipe and a positioning assembly, the belt conveyor comprises two racks and conveying rollers rotationally connected between the two racks, the two conveying rollers are jointly sleeved with a conveying belt, magnetic strips distributed at equal intervals are fixed to the surface of the conveying belt, the L-shaped side baffles are fixed to the upper ends of the two racks, and the positioning assembly is arranged on the side baffles. The side baffles are symmetrically distributed, and positioning assemblies distributed at equal intervals are arranged between the two side baffles. The positioning assembly comprises a top plate and a bottom plate, two symmetrically-distributed supporting rods are fixed between the top plate and the bottom plate, and the two supporting rods are jointly sleeved with a movable strip. Through the arrangement of the belt conveyor, the side baffle, the spraying pipe and the positioning assembly, the problems that streamlined spraying operation is lacked, positioning of PCBs is troublesome, and positioning clamps suitable for paint spraying of PCBs of various sizes are lacked are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electronic component processing technical field, especially a kind of three-proof paint spraying equipment of PCBA. BACKGROUND

[0002] PCBA refers to printed circuit board assembly, it is indispensable in electronic product manufacturing, responsible for connecting various electronic components through printed circuit board, form a complete functional module, before PCBA, the assembly of electronic product often needs to weld a large number of components and wire by hand, this not only is inefficient, but also is prone to error.PCBA through automated patch processing technology, component is accurately mounted on PCB, greatly simplifies the assembly process, improves production efficiency.However, in its assembly process, three-proof paint is usually sprayed to make it have the properties of moisture-proof, salt fog-proof, mildew-proof, water-proof, dust-proof, corrosion-proof and aging-proof etc.But it still has the following disadvantages in actual spraying process:

[0003] 1、Firstly, in PCBA process, substrate is a piece of PCB, it is usually thin, when carrying out paint spraying treatment, it cannot be held by hand, so corresponding clamp etc.are needed to be clamped, but conventional clamp structure is relatively rigid, needs to be clamped and fixed around PCB, leaks its surface, then carries out one by one spraying, there is no coherence between clamps, each clamp cannot be used in cooperation, forms flow water operation, when single clamp clamps single PCB and sprays, efficiency is low;And many positioning clamps need a large number of bolts and nuts to assist positioning, too many positioning points are designed, very time-consuming in disassembly and assembly, need more simple positioning structure;

[0004] 2、Secondly, in the spraying operation of PCB, the size of PCB required by each equipment is inconsistent, so the corresponding spraying equipment needs different size positioning clamps, and if each PCB needs a customized clamp, it is too cost-consuming, so a clamp that can adapt to PCBs of various sizes is needed to assist spraying. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of three-proof paint spraying equipment of PCBA, by setting up belt conveyor, side baffle, spraying pipe, positioning assembly, lack of flow water spraying operation, and the positioning of PCB is more troublesome, and lack of the positioning clamp of the paint spraying of each size PCB problem is solved.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a kind of PCBA three-proof paint spraying equipment, including belt conveyor, side baffle, spraying pipe and positioning assembly, the belt conveyor includes two racks and the conveying roller rotationally connected between two racks, and two the conveying belt is commonly sleeved with conveying belt outside the conveying roller, the surface of the conveying belt is fixed with equidistant distribution magnetic stripe, two The side baffle of L-shaped is fixed on the upper end of the rack, and side baffle is mutually symmetrical distribution, equidistant distribution positioning assembly is arranged between two The side baffle.

[0008] The positioning assembly includes a top plate and a bottom plate, two symmetrically distributed support rods are fixed between the top plate and the bottom plate, an active strip is commonly sleeved outside the two support rods, symmetrically distributed limit rods are fixed to the upper end of the active strip, and a counterweight is sleeved outside the limit rods; A magnetic block is fixed to the center of the bottom surface of the bottom plate.

[0009] Further, the belt conveyor further includes a motor, and the motor is fixed to the outer side surface of the rack. The output shaft of the motor is fixedly connected to the end of one of the conveying rollers.

[0010] Further, a spraying pipe is fixed to the outer side surface of the vertical portion of the side baffle, and a spray head is fixed to the outer periphery of the spraying pipe. The spray head is located above the conveying belt and inclined towards the direction of travel of the conveying belt.

[0011] Further, a suspension rail is fixed to the horizontal portion of each of the two side baffles, two symmetrically distributed connecting rods are fixed to the upper end of the top plate, a ball head is fixed to the upper end of the connecting rod, and the ball head is located in the inner cavity of the suspension rail.

[0012] Further, an adjusting rod is fixed to the center of the top surface of the active strip, the upper end of the adjusting rod penetrates the top plate upwards, and a lifting handle is fixed to the upper end of the adjusting rod.

[0013] Further, two through grooves are symmetrically formed in the top plate, and the limit rods and the counterweights protrude through the grooves.

[0014] Further, a clamping groove two is formed in the bottom surface of the active strip, a clamping groove one is formed in the upper surface of the bottom plate, and a PCBA board is clamped between the clamping groove one and the clamping groove two.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model discloses a belt conveyor, side baffle, spraying pipe, positioning assembly are set up, solved the lack of flow waterization spraying operation, and the positioning of PCB board is more troublesome Problem, first, the positioning assembly is used to the positioning clamping of PCB board, and the adjusting rod is pulled up through the pull hand, and the movable strip rises, and then the bottom end of PCB board is placed in the card slot one on the bottom plate, and then the movable strip is controlled to descend, until the upper end of PCB board is clamped in the card slot two at the bottom of movable strip, and the movable strip is relied on the self weight and the counterweight of counterweight block, and the PCB board is pressed tightly, so that it cannot shake, and does not need any bolt nut etc. fastener use, and the positioning area is big and the positioning point is less, and the operation is very convenient, secondly, after assembling, the ball head on the top plate is connected on the suspension rail, and when the positioning assembly is located on the conveying belt, the magnetic block at the bottom of bottom plate is attracted and adsorbed by the magnetic strip, so that the positioning assembly moves with the operation of conveying belt, and the PCB board clamped in the positioning assembly moves with the operation of belt conveyor, and is sprayed constantly by each spray head.

[0017] 2. The utility model discloses a positioning assembly, solved the problem that the positioning clamp that lacks the paint spraying of each size PCB board is adapted, pull the adjusting rod and make movable strip rise, and the bottom end of PCB board is placed on the bottom plate, and then the movable strip is descended, until the upper end of PCB board is clamped in the card slot two at the bottom of movable strip, and the movable strip is relied on the self weight and the counterweight of counterweight block, and the PCB board is pressed tightly, and the movable strip is movable, and is adapted to the PCB board of various height use, and the length of various PCB boards can be used within the length range of card slot one, and is adapted to the PCB board of various sizes and is used in clamping positioning. ACCURACY OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will introduce the drawing needed for the embodiment.

[0019] Figure 1 It is a three-dimensional view of a PCB A three-proof paint spraying equipment;

[0020] Figure 2 It is a three-dimensional view after removing a side baffle and a spraying pipe;

[0021] Figure 3 It is a three-dimensional view of a positioning assembly;

[0022] Figure 4 It is a three-dimensional view of a positioning assembly;

[0023] Figure 5 It is a connection diagram of a side baffle and a spraying pipe;

[0024] Figure 6 It is a partial view after cutting a side baffle and a spraying pipe;

[0025] Figure 7 Structure diagram of the belt conveyor.

[0026] Reference signs:

[0027] 1, belt conveyor; 101, motor; 102, frame; 103, conveying roller; 104, conveying belt; 105, magnetic strip; 2, side baffle; 201, hanging rail; 3, spraying pipe; 301, spray head; 4, positioning assembly; 401, top plate; 4011, through slot; 4012, connecting rod; 4013, ball head; 402, bottom plate; 4021, clamping groove one; 4022, magnetic block; 403, supporting rod; 404, movable strip; 4041, clamping groove two; 4042, limiting rod; 4043, counterweight block; 405, adjusting rod; 4051, lifting handle. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0029] Please refer to Figures 1-7 The utility model discloses a kind of PCBA three-proof paint spraying equipment, including belt conveyor 1, side baffle 2, spraying pipe 3 and positioning assembly 4, belt conveyor 1 includes two frames 102 and the conveying roller 103 rotationally connected between two frames 102, and the conveying belt 104 is commonly jacketed in the outer two conveying rollers 103, the surface of conveying belt 104 is fixed with equidistant distribution magnetic strip 105, two frames 102 upper end are all fixed with the side baffle 2 of L type, and side baffle 2 is mutually symmetrical distribution, equidistant distribution positioning assembly 4 is arranged between two side baffles 2;

[0030] Belt conveyor 1 is conventional conveyor, not do specific model setting, and it is different from conventional conveyor that magnetic strip 105 is increased on the surface of conveying belt 104, for subsequent connection with positioning assembly 4 use, side baffle 2 is installed above frame 102, and hanging rail 201 is installed on side baffle 2, for the movement of positioning assembly 4 cooperation, after positioning assembly 4 is positioned clamped with PCB board, it can be placed on the conveying of belt conveyor 1 above;

[0031] Positioning assembly 4 includes top plate 401 and bottom plate 402, two symmetrical distribution supporting rods 403 are fixed between top plate 401 and bottom plate 402, movable strip 404 is commonly jacketed outside two supporting rods 403, the upper end of movable strip 404 is fixed with symmetrical distribution limiting rod 4042, and counterweight block 4043 is jacketed outside limiting rod 4042;The bottom surface center of bottom plate 402 is fixed with magnetic block 4022;

[0032] The top plate 401 and the bottom plate 402 are fixed by the support rod 403, and then the movable strip 404 is sleeved outside the support rod 403, the movable strip 404 can be lifted up and down along the support rod 403, the positioning and clamping height of the PCB board is changed, the movable strip 404 is suitable for clamping and positioning of PCB boards of various heights, the PCB board is placed between the movable strip 404 and the bottom plate 402, the counterweight of the counterweight block 4043 is used to press the PCB board by the weight of the movable strip 404 and the limit rod 4042, the counterweight block 4043 is appropriately increased or decreased according to the mass of the PCB board, and any fastener is not needed.

[0033] The belt conveyor 1 further comprises a motor 101 fixed on the outer side of the frame 102, and the output shaft of the motor 101 is fixedly connected with the end of one of the conveying rollers 103; the motor 101 can drive the conveying roller 103 to rotate, so that the conveying belt 104 runs, and the remaining structure of the belt conveyor 1 is not specifically described.

[0034] The outer side of the vertical part of the side baffle 2 is fixed with a spraying pipe 3, and the outer periphery of the spraying pipe 3 is fixed with a spray head 301, the spray head 301 is located above the conveying belt 104 and is inclined to the running direction of the conveying belt 104; the end of the spraying pipe 3 is connected with an external three-proofing paint conveying pipeline, the three-proofing paint is conveyed into the spraying pipe 3, and then sprayed out from the spray head 301 and inclined to the surface of the PCB board; the spray head 301 can be additionally arranged on the spraying pipe 3 and symmetrically distributed in terms of angle, so that when the PCB board passes, the two kinds of angle spray heads 301 can synchronously spray the front and back surfaces of the PCB board.

[0035] The horizontal part of the two side baffles 2 close to each other is fixed with a hanging rail 201, and the upper end of the top plate 401 is fixed with two symmetrically distributed connecting rods 4012, and the upper end of the connecting rod 4012 is fixed with a ball head 4013 located in the inner cavity of the hanging rail 201.

[0036] After the positioning assembly 4 clamps the PCB board, the ball head 4013 at the top of the top plate 401 is inserted into the inner cavity of the hanging rail 201 from the end of the hanging rail 201, and the connecting rod 4012 is connected with the top plate 401 through the opening at the lower part of the hanging rail 201, so that the positioning assembly 4 is suspended.

[0037] The top surface of the movable strip 404 is further fixed with an adjusting rod 405, the upper end of the adjusting rod 405 penetrates the top plate 401 upwards and is fixed with a pulling handle 4051; the adjusting rod 405 can be pulled up or down through the pulling handle 4051.

[0038] Two through grooves 4011 are symmetrically arranged in the top plate 401, and the limit rod 4042 and the counterweight block 4043 extend out of the through grooves 4011; when the adjusting rod 405 and the movable strip 404 are adjusted, the top plate 401 does not affect the lifting path of the adjusting rod 405 and the movable strip 404.

[0039] The bottom surface of the movable strip 404 is provided with a clamping groove two 4041, and the upper surface of the bottom plate 402 is provided with a clamping groove one 4021, and the PCBA board is clamped between the clamping groove one 4021 and the clamping groove two 4041; the clamping groove one 4021 and the clamping groove two 4041 correspond to clamping the PCB board, and when the movable strip 404 and the bottom plate 402 clamp the PCB board, the upper and lower end edges are clamped into the corresponding clamping grooves, thereby further increasing the stability.

[0040] The specific working principle of the utility model is as follows: first, the adjusting rod 405 is pulled up by pulling the lifting handle 4051, the movable strip 404 is lifted, the bottom end of the PCB board is placed in the clamping groove one 4021 on the bottom plate 402, the movable strip 404 is lowered by controlling the adjusting rod 405, until the upper end of the PCB board is clamped in the clamping groove two 4041 at the bottom of the movable strip 404, the weight of the movable strip 404 and the counterweight of the counterweight block 4043 are relied on to compress the PCB board, so that it cannot shake, the counterweight block 4043 is appropriately increased or decreased according to the mass of the PCB board, after the installation is completed, the remaining positioning assembly 4 also installs the PCB board in this way, then the ball head 4013 at the top of the top plate 401 is inserted into the inner cavity of the suspension rail 201 from the end of the suspension rail 201, the connecting rod 4012 passes through the opening at the lower part of the suspension rail 201 and is connected with the top plate 401, so that the positioning assembly 4 is suspended, finally, the motor 101 drives the conveying roller 103 to rotate, so that the conveying belt 104 runs, when the magnetic stripe 105 on the conveying belt 104 moves below the corresponding positioning assembly 4, the magnetic block 4022 at the bottom of the bottom plate 402 is attracted and adsorbed by the magnetic stripe 105, so that the positioning assembly 4 moves with the running of the conveying belt 104, the PCB board clamped in the positioning assembly 4 moves with the running of the belt conveyor 1, and is uniformly sprayed by the spray head 301 (the end of the spraying pipe 3 needs to be connected with the three-proof paint conveying pipeline outside, to convey three-proof paint into the inside, and then sprayed from the spray head 301), and the spraying is completed.

[0041] The above is only the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement of the technical scheme recorded in the foregoing embodiments, belongs to the protection range of the utility model.

Claims

1. A PCBA three-proof paint spraying device, comprising a belt conveyor (1), a side baffle (2), a spraying pipe (3) and a positioning assembly (4), characterized in that: The belt conveyor (1) comprises two frames (102) and a conveying roller (103) rotatably connected between the two frames (102), and the two conveying rollers (103) are jointly sleeved with a conveying belt (104) outside, the surface of the conveying belt (104) is fixed with equidistantly distributed magnetic strips (105), the upper ends of the two frames (102) are fixed with L-shaped side baffles (2), and the side baffles (2) are symmetrically distributed, and equidistantly distributed positioning assemblies (4) are arranged between the two side baffles (2). The positioning assembly (4) comprises a top plate (401) and a bottom plate (402), two symmetrically distributed supporting rods (403) are fixed between the top plate (401) and the bottom plate (402), and an active strip (404) is jointly sleeved outside the two supporting rods (403), the upper end of the active strip (404) is fixed with symmetrically distributed limiting rods (4042), and a counterweight (4043) is sleeved outside the limiting rod (4042); and a magnetic block (4022) is fixed at the center of the bottom surface of the bottom plate (402).

2. The PCBA three-proofing paint spraying device according to claim 1, characterized in that: The belt conveyor (1) further comprises a motor (101), and the motor (101) is fixed on the outer side surface of the frame (102), and the output shaft of the motor (101) is fixedly connected with the end of one of the conveying rollers (103).

3. The PCBA three-proofing paint spraying device according to claim 1, characterized in that: The outer side surface of the vertical part of the side baffle (2) is fixed with a spraying pipe (3), and the outer periphery of the spraying pipe (3) is fixed with a spray head (301), and the spray head (301) is located above the conveying belt (104) and inclined towards the running direction of the conveying belt (104).

4. The PCBA three-proofing paint spraying device according to claim 1, characterized in that: The horizontal part side surfaces of the two side baffles (2) close to each other are fixed with a suspension rail (201), the upper end of the top plate (401) is fixed with two symmetrically distributed connecting rods (4012), and the upper end of the connecting rod (4012) is fixed with a ball head (4013), and the ball head (4013) is located in the inner cavity of the suspension rail (201).

5. The PCBA three-proofing paint spraying device according to claim 1, characterized in that: The top surface center of the active strip (404) is further fixed with an adjusting rod (405), and the upper end of the adjusting rod (405) penetrates the top plate (401) upward and is fixed with a lifting handle (4051).

6. The PCBA three-proofing paint spraying device according to claim 1, characterized in that: Two through grooves (4011) are symmetrically formed in the top plate (401), and the limiting rod (4042) and the counterweight (4043) extend out of the through groove (4011).

7. The PCBA three-proofing paint spraying device according to claim 1, characterized in that: The bottom surface of the active strip (404) is provided with a clamping groove two (4041), and the upper surface of the bottom plate (402) is provided with a clamping groove one (4021), and the clamping groove one (4021) and the clamping groove two (4041) are clamped with a PCBA board.

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