Printed circuit board cleaning equipment

Abstract

According to the printed circuit board cleaning equipment, during cleaning work, circuit boards are placed in a conveying mechanism one by one, the circuit boards are conveyed to the position below a supporting frame body one by one through the conveying mechanism, and the circuit boards can be cleaned through a first cleaning assembly and a second cleaning assembly on the lower side of the supporting frame body; therefore, a worker does not need to hold a brush for cleaning, the labor intensity of the worker is reduced, and the cleaning efficiency of the circuit board is improved. Meanwhile, the circuit board can be cleaned in the left-right direction through a brush, and then the circuit board is cleaned in the front-back direction through rotation of a brush roller, so that comprehensive cleaning of the circuit board is achieved, and the cleaning quality of the circuit board is greatly improved; in addition, the left-right sliding of the sliding piece and the rotation of the brush roller are driven by a driving mechanism, so that the cost can be reduced, and the effects of saving energy and reducing consumption are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board production, and in particular to a printed circuit board cleaning device. Background Art

[0002] PCB, Chinese name for printed circuit board, also known as printed circuit board, is an important electronic component, the support of electronic components, and the carrier of electrical connection of electronic components. Because it is made by electronic printing technology, it is called "printed" circuit board.

[0003] In the prior art, dust and solid impurities may fall on the surface of printed circuit boards during processing, affecting subsequent processing. When cleaning these dust and solid impurities, workers usually use a brush to repeatedly brush the surface of each printed circuit board to achieve the purpose of dust removal. However, this dust removal method is very inefficient and cannot effectively clean the circuit board. The cleaning effect is poor, resulting in low applicability and practicality. Summary of the invention

[0004] The present invention aims to solve one of the problems existing in the prior art to at least a certain extent. To this end, the present invention provides a printed circuit board cleaning device that can automatically clean the surface of the printed circuit board.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A printed circuit board cleaning device comprises a frame, on which a conveying mechanism for conveying the circuit board from front to back is arranged, a supporting frame is arranged above the conveying mechanism, and a first cleaning component and a second cleaning component are spaced apart at the front and rear of the lower side of the supporting frame, the first cleaning component comprises a sliding member that can slide left and right on the lower side of the supporting frame, a brush is arranged on the lower side of the sliding member, and the second cleaning component comprises a brush roller rotatably arranged on the lower side of the supporting frame, the axial direction of the brush roller extends in the left and right directions, and a driving mechanism is also arranged on the supporting frame, and the driving mechanism can simultaneously drive the sliding member to slide left and right and drive the brush roller to rotate.

[0007] In some embodiments, the sliding member includes a horizontal plate, support plates are provided on the upper sides of the left and right ends of the horizontal plate, a horizontal axis is connected between the two support plates, and a guide baffle is provided on the lower side of the support frame, and the horizontal axis slides left and right on the guide baffle.

[0008] In some embodiments, the driving mechanism includes a first motor disposed on the support frame, a first transmission wheel is arranged on the output shaft of the first motor, a first rotating shaft is also rotatably arranged on the support frame, a first bevel gear, a second transmission wheel and a cam are arranged on the first rotating shaft, a first transmission belt is connected between the first transmission wheel and the second transmission wheel, a second bevel gear that can mesh with the first bevel gear is arranged at one end of the brush roller, a spring is sleeved on the horizontal axis, one end of the spring abuts against the guide baffle, and the other end abuts against the support plate, and the action of the spring keeps one side of the support plate against the cam.

[0009] In some embodiments, connecting plates with front and rear intervals are provided on both sides of the left and right sides of the support frame body, and vertical plates corresponding to the connecting plates are provided on the frame. Vertical through grooves are provided on the vertical plates, and bolts are passed through the connecting plates. After the bolts pass through the vertical through grooves, they are threadedly connected with locking nuts.

[0010] In some embodiments, a through hole is provided on the support frame and directly above the first cleaning component and the second cleaning component, and a dust cover is provided on the upper side of the through hole.

[0011] In some embodiments, the conveying mechanism includes two groups of belt conveyors arranged symmetrically on the left and right, and the belt conveyor includes a long seat body extending in the front-back direction, and a conveying belt is arranged on the long seat body, and the conveying surface of the conveying belt is arranged in a vertical state.

[0012] In some embodiments, among the two groups of belt conveyors, one group of belt conveyors is fixed on the frame, and the other group of belt conveyors is slidably arranged left and right. A sliding mechanism for driving the group of belt conveyors to slide left and right is also arranged on the frame.

[0013] In some embodiments, the sliding mechanism includes a fixed plate arranged on the frame, a screw rod is rotatably installed on the fixed plate at front and rear intervals, a screw rod sleeve is threadedly engaged on the screw rod, the screw rod sleeve is arranged on the long seat body of the sliding belt conveyor, the other end of the screw rod passes through the long seat body of the fixed belt conveyor, and a third transmission wheel is arranged, a fourth transmission wheel is coaxially arranged on one side of one of the third transmission wheels, a second motor is also arranged on the frame, a fifth transmission wheel is arranged on the output shaft of the second motor, a second transmission belt is provided in a connecting sleeve between the two third transmission wheels, and a third transmission belt is provided in a connecting sleeve between the fourth transmission wheel and the fifth transmission wheel.

[0014] In some embodiments, a guide cross bar is spaced apart at front and rear of one side of the fixed plate, and the connection of the guide cross bar is arranged on the long seat body of the fixed belt conveyor, and the long seat body of the sliding belt conveyor slides left and right on the guide cross bar.

[0015] In some embodiments, a support plate is provided on the inner side of the long seat body and below the conveyor belt, and a plurality of columns are spaced apart along the front-to-back direction on the support plate, and the columns are provided in the conveyor belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. During cleaning, the circuit boards are placed one by one in the conveying mechanism, and the circuit boards are conveyed one by one to the bottom of the support frame through the conveying mechanism, and the circuit boards can be cleaned by the first cleaning component and the second cleaning component on the lower side of the support frame, so that there is no need to manually hold a brush for cleaning, which reduces the labor intensity of workers and improves the efficiency of circuit board cleaning;

[0018] 2. The first cleaning component includes a sliding member that can slide left and right on the lower side of the support frame, a brush is arranged on the lower side of the sliding member, and the second cleaning component includes a brush roller rotatably arranged on the lower side of the support frame, the axial direction of the brush roller extends in the left and right directions, and a driving mechanism is also arranged on the support frame, the driving mechanism can simultaneously drive the sliding member to slide left and right and drive the brush roller to rotate, that is, the circuit board can be cleaned in the left and right directions by the brush, and then the front and rear directions of the circuit board can be cleaned by the rotation of the brush roller, thereby achieving comprehensive cleaning of the circuit board and greatly improving the cleaning quality of the circuit board;

[0019] 3. In addition, the left and right sliding of the sliding member and the rotation of the brush roller are driven by a driving mechanism, thereby reducing costs and achieving the effect of energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0022] Figure 3 It is a partial cross-sectional schematic diagram of the present invention;

[0023] Figure 4 For the present invention Figure 1 A magnified schematic diagram of point A;

[0024] Figure 5 For the present invention Figure 1 An enlarged schematic diagram of point B;

[0025] Figure 6 It is a partial schematic diagram of the present invention. DETAILED DESCRIPTION

[0026] The following specific implementation contents provide a variety of different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and do not wish to be restrictive. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0027] like Figure 1-Figure 6 A printed circuit board cleaning device shown in the figure includes a frame 1, on which a conveying mechanism for conveying the circuit board from front to back is arranged, a support frame 2 is arranged above the conveying mechanism, and a first cleaning component and a second cleaning component are spaced apart at the front and rear of the lower side of the support frame 2, the first cleaning component includes a sliding member 3 that can slide left and right on the lower side of the support frame 2, and a brush 4 is arranged on the lower side of the sliding member 3, and the second cleaning component includes a brush roller 5 rotatably arranged on the lower side of the support frame 2, and the axial direction of the brush roller 5 extends in the left and right directions, and a driving mechanism is also arranged on the support frame 2, and the driving mechanism can simultaneously drive the sliding member 3 to slide left and right and drive the brush roller 5 to rotate.

[0028] In the present invention, when cleaning the circuit boards, the circuit boards are placed one by one in the conveying mechanism, and the circuit boards are conveyed one by one to the bottom of the support frame 2 by the conveying mechanism, and the circuit boards can be cleaned by the first cleaning component and the second cleaning component on the lower side of the support frame 2, so there is no need to manually hold a brush for cleaning, which reduces the labor intensity of workers and improves the efficiency of circuit board cleaning.

[0029] The first cleaning component includes a sliding member 3 that can slide left and right on the lower side of the support frame 2, and a brush 4 is arranged on the lower side of the sliding member 3. The second cleaning component includes a brush roller 5 rotatably arranged on the lower side of the support frame 2, and the axial direction of the brush roller 5 extends along the left and right directions. A driving mechanism is also arranged on the support frame 2, and the driving mechanism can simultaneously drive the sliding member 3 to slide left and right and drive the brush roller 5 to rotate. That is to say, the circuit board can be cleaned in the left and right directions by the brush 4, and then the front and rear directions of the circuit board can be cleaned by the rotation of the brush roller 5, thereby achieving comprehensive cleaning of the circuit board and greatly improving the cleaning quality of the circuit board.

[0030] In addition, the left and right sliding of the sliding member 3 and the rotation of the brush roller 5 are driven by a driving mechanism, thereby reducing costs and achieving the effect of energy saving and consumption reduction.

[0031] See also Figure 3 As shown, the sliding member 3 includes a transverse plate 21, and support plates 22 are arranged on the upper sides of the left and right ends of the transverse plate 21, a transverse axis 23 is connected between the two support plates 22, and a guide baffle 24 is arranged on the lower side of the support frame 2, and the transverse axis 23 slides left and right on the guide baffle 24; the transverse axis 23 is inserted left and right in the guide baffle 24, thereby driving the support plate 22 and the transverse plate 21 to slide left and right together, so that the brush 4 can wipe the surface of the circuit board.

[0032] The driving mechanism includes a first motor 31 arranged on the support frame 2, a first transmission wheel 32 is arranged on the output shaft of the first motor 31, a first rotating shaft 33 is also rotatably arranged on the support frame 2, a first bevel gear 34, a second transmission wheel 341 and a cam 35 are arranged on the first rotating shaft 33, a first transmission belt 36 is connected and sleeved between the first transmission wheel 32 and the second transmission wheel 341, a second bevel gear 37 that can mesh with the first bevel gear 34 is arranged at one end of the brush roller 5, a spring 38 is sleeved on the horizontal shaft 23, one end of the spring 38 abuts against the guide baffle 24, and the other end abuts against the support plate 22, and the spring 38 keeps one side of the support plate 22 against the cam 35.

[0033] When the driving mechanism is working, the first motor 31 drives the first transmission wheel 32 to rotate, and the first rotating shaft 33 is driven to rotate under the transmission of the first transmission belt 36 and the second transmission wheel 341. The first rotating shaft 33 drives the first bevel gear 34 to rotate and mesh with the second bevel gear 37, thereby driving the brush roller 5 to rotate. At the same time, the first rotating shaft 33 drives the cam 35 to rotate against the support plate 22, and the spring 38 allows the support plate 22 to always remain in contact with the cam 35, so that the support plate 22 drives the cross plate 21 and the brush 4 to move back and forth left and right.

[0034] See also Figure 1 , Figure 3 , Figure 5 As shown, connecting plates 41 with a front-to-rear interval are provided on the left and right sides of the support frame 2, and vertical plates 42 corresponding to the connecting plates 41 are provided on the frame 1, and vertical through grooves 43 are provided on the vertical plates 42. Bolts 44 are passed through the connecting plates 41, and the bolts 44 are threadedly connected with locking nuts 45 after passing through the vertical through grooves 43, so that the support frame 2 is fixed by the cooperation of the bolts 44 and the locking nuts 45. In addition, according to the usage, the bolts 44 are adjusted up and down in the vertical through grooves 43, so that the height positions of the support frame 2 and the first cleaning assembly and the second cleaning assembly can be adjusted to adapt to the cleaning work of different circuit boards.

[0035] See also Figure 1-Figure 3 As shown, a through hole 51 is provided on the support frame 2 and directly above the first cleaning component and the second cleaning component, and a dust hood 52 is provided on the upper side of the through hole 51. The dust hood 52 is connected to an external dust suction device to suck in dust and improve the cleaning effect of the circuit board.

[0036] See also Figure 1 , Figure 2 , Figure 4 , Figure 6 As shown, the conveying mechanism includes two groups of belt conveyors 61 symmetrically arranged on the left and right. The belt conveyor 61 includes a long seat body 62 extending in the front-back direction. A conveying belt 63 is arranged on the long seat body 62. The conveying surface of the conveying belt 63 is arranged in a vertical state. The circuit board is clamped and conveyed by the conveying belts 63 on both sides. This structure is an existing conventional setting and will not be described in detail here.

[0037] Furthermore, among the two groups of belt conveyors 61, one group of belt conveyors 61 is fixed on the frame 1, and the other group of belt conveyors 61 is slidably arranged left and right. A sliding mechanism for driving the group of belt conveyors 61 to slide left and right is also arranged on the frame 1.

[0038] The sliding mechanism includes a fixed plate 81 arranged on the frame 1, on which a screw rod 82 is rotatably installed at intervals in the front and rear directions, on which a screw rod sleeve 83 is threadedly engaged, and the screw rod sleeve 83 is arranged on the long seat body 62a of the sliding belt conveyor 61, and the other end of the screw rod 82 passes through the long seat body 62b of the fixed belt conveyor 61, and is provided with a third transmission wheel 631, on one side of which a fourth transmission wheel 64 is coaxially arranged, a second motor 65 is also arranged on the frame 1, and a fifth transmission wheel 66 is arranged on the output shaft of the second motor 65, a second transmission belt 67 is provided in a connecting sleeve between the two third transmission wheels 631, and a third transmission belt 68 is provided in a connecting sleeve between the fourth transmission wheel 64 and the fifth transmission wheel 66.

[0039] When the sliding mechanism is working, the fifth transmission wheel 66 is driven to rotate through the operation of the second motor 65, and the two screw rods 82 are driven to rotate in the same direction at the same time through the transmission of the third transmission belt 68, the fourth transmission wheel 64, the second transmission belt 67 and the two third transmission wheels 631. Under the action of the screw rod sleeve 83, the long seat body 62a is driven to move left and right, and the distance between the left and right conveyor belts 63 is adjusted, so as to adapt to the conveyance of circuit boards of different sizes.

[0040] Furthermore, a guide cross bar 91 is spaced apart at the front and rear of one side of the fixed plate 81, and the connection of the guide cross bar 91 is arranged on the long seat body 62b of the fixed belt conveyor 61, and the long seat body 62a of the sliding belt conveyor 61 slides left and right on the guide cross bar 91, so that the long seat body 62a can slide smoothly.

[0041] Furthermore, a pallet 10 is provided on the inner side of the long seat body 62 and below the conveyor belt 63. A plurality of columns 11 are spaced apart along the front-to-back direction on the pallet 10. The columns 11 are provided in the conveyor belt 63. The conveyor belt 63 is supported by the columns 11, so that the conveyor belt 63 can better support the circuit board and the circuit board can be transported more stably.

[0042] In conjunction with the drawings and the above, the basic principles and main features of the present invention and the advantages of the present invention are shown and described. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A printed circuit board cleaning device, comprising a frame (1), characterized in that: A conveying mechanism for conveying the circuit board from front to back is arranged on the frame (1), a support frame (2) is arranged above the conveying mechanism, a first cleaning component and a second cleaning component are arranged at intervals at the front and rear of the lower side of the support frame (2), the first cleaning component comprises a sliding member (3) which can slide left and right on the lower side of the support frame (2), a brush (4) is arranged on the lower side of the sliding member (3), the second cleaning component comprises a brush roller (5) which is rotatably arranged on the lower side of the support frame (2), the axial direction of the brush roller (5) extending in the left and right direction, and a driving mechanism is also arranged on the support frame (2), the driving mechanism can simultaneously drive the sliding member (3) to slide left and right and drive the brush roller (5) to rotate.

2. A printed circuit board cleaning device according to claim 1, characterized in that: The sliding member (3) comprises a transverse plate (21), support plates (22) are arranged on the upper sides of the left and right ends of the transverse plate (21), a transverse axis (23) is connected between the two support plates (22), and a guide baffle (24) is arranged on the lower side of the support frame (2), and the transverse axis (23) slides left and right on the guide baffle (24).

3. A printed circuit board cleaning device according to claim 2, characterized in that: The driving mechanism comprises a first motor (31) arranged on the support frame (2); a first transmission wheel (32) is arranged on the output shaft of the first motor (31); a first rotating shaft (33) is also rotatably arranged on the support frame (2); a first bevel gear (34), a second transmission wheel (341) and a cam (35) are arranged on the first rotating shaft (33); a first transmission belt (36) is sleeved between the first transmission wheel (32) and the second transmission wheel (341); a second bevel gear (37) capable of meshing with the first bevel gear (34) is arranged at one end of the brush roller (5); a spring (38) is sleeved on the horizontal shaft (23); one end of the spring (38) abuts against the guide baffle (24) and the other end abuts against the support plate (22); and one side of the support plate (22) is kept against the cam (35) by the action of the spring (38).

4. A printed circuit board cleaning device according to claim 1, characterized in that: Connecting plates (41) spaced apart from each other are arranged on both left and right sides of the support frame (2); a vertical plate (42) corresponding to the connecting plate (41) is arranged on the frame (1); a vertical through slot (43) is arranged on the vertical plate (42); a bolt (44) is passed through the connecting plate (41); and the bolt (44) passes through the vertical through slot (43) and is threadedly connected to a locking nut (45).

5. A printed circuit board cleaning device according to claim 1, characterized in that: A through hole (51) is provided on the support frame (2) and directly above the first cleaning assembly and the second cleaning assembly, and a dust cover (52) is provided on the upper side of the through hole (51).

6. A printed circuit board cleaning device according to claim 1, characterized in that: The conveying mechanism comprises two groups of belt conveyors (61) arranged symmetrically on the left and right. The belt conveyor (61) comprises a long seat body (62) extending in the front-back direction. A conveying belt (63) is arranged on the long seat body (62). The conveying surface of the conveying belt (63) is arranged in a vertical state.

7. A printed circuit board cleaning device according to claim 6, characterized in that: Among the two groups of belt conveyors (61), one group of belt conveyors (61) is fixed on the frame (1), and the other group of belt conveyors (61) is slidably arranged left and right. A sliding mechanism for driving the group of belt conveyors (61) to slide left and right is also arranged on the frame (1).

8. A printed circuit board cleaning device according to claim 7, characterized in that: The sliding mechanism comprises a fixed plate (81) arranged on the frame (1), a screw rod (82) is rotatably mounted on the fixed plate (81) at intervals in front and back, a screw rod sleeve (83) is threadedly matched on the screw rod (82), the screw rod sleeve (83) is arranged on the long seat body (62a) of the sliding belt conveyor (61), the other end of the screw rod (82) passes through the long seat body (62b) of the fixed belt conveyor (61), and is provided with a third transmission wheel (631), a fourth transmission wheel (64) is coaxially arranged on one side of one of the third transmission wheels (631), a second motor (65) is also arranged on the frame (1), a fifth transmission wheel (66) is arranged on the output shaft of the second motor (65), a second transmission belt (67) is connected between the two third transmission wheels (631), and a third transmission belt (68) is connected between the fourth transmission wheel (64) and the fifth transmission wheel (66).

9. A printed circuit board cleaning device according to claim 8, characterized in that: A guide cross bar (91) is spaced apart at the front and rear of one side of the fixed plate (81), and the guide cross bar (91) is connected to a long seat body (62b) of a fixed belt conveyor (61), and a long seat body (62a) of a sliding belt conveyor (61) slides left and right on the guide cross bar (91).

10. A printed circuit board cleaning device according to claim 6, characterized in that: A support plate (10) is arranged on the inner side of the long seat body (62) and below the conveying belt (63). A plurality of columns (11) are arranged on the support plate (10) at intervals in the front-to-back direction. The columns (11) are arranged in the conveying belt (63).

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