Circuit board processing apparatus with a spraying device

Abstract

The application discloses a circuit board processing equipment with a spraying device, which comprises a conveying device, a spraying device and a swing device. The conveying device comprises a plurality of conveying rollers arranged along a conveying direction. The spraying device comprises a plurality of upper spraying pipes located above the conveying rollers and a plurality of lower spraying pipes located below the conveying rollers. Nozzles for spraying liquid medicine on the circuit board are fixed on the upper spraying pipes and the lower spraying pipes. The upper spraying pipes and the lower spraying pipes are connected with the swing device. The swing device is used for driving the upper spraying pipes and the lower spraying pipes to reciprocate along the axial direction of the conveying rollers. The application can uniformly spray the liquid medicine and improve the quality of the circuit board.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of circuit board processing equipment, and particularly relates to a circuit board processing equipment with a spraying device. BACKGROUND

[0002] In the existing circuit board processing technology, the circuit board needs to go through multiple procedures such as developing, etching, film stripping and cleaning, wherein the procedures such as developing, etching, film stripping and cleaning all need to use a spraying device to spray chemical water on the circuit board, for example, a PCB film stripping device is disclosed in Chinese Utility Model Patent No. CN201821582U. Since the chemical water is sprayed from the nozzle, there is a gap between adjacent nozzles, so that the chemical water is difficult to be uniformly sprayed on the circuit board, resulting in uneven chemical reaction on the circuit board, which affects the quality of the circuit board. SUMMARY

[0003] The present application provides a circuit board processing equipment with a spraying device, which can more uniformly spray chemical water and improve the quality of the circuit board.

[0004] To solve the above problems, the present application adopts the following technical scheme:

[0005] The embodiment of the present application provides a circuit board processing equipment with a spraying device, which comprises a conveying device, a spraying device and a swinging device, the conveying device comprises a plurality of conveying rollers arranged along the conveying direction, the spraying device comprises a plurality of upper spraying pipes located above the conveying rollers and a plurality of lower spraying pipes located below the conveying rollers, and a nozzle for spraying chemical water on the circuit board is fixed on each of the upper spraying pipes and the lower spraying pipes; the upper spraying pipes and the lower spraying pipes are connected with the swinging device, and the swinging device is used to drive the upper spraying pipes and the lower spraying pipes to reciprocate along the axial direction of the conveying rollers.

[0006] In some embodiments, the spraying device further comprises an upper connecting pipe and a lower connecting pipe extending along the conveying direction, the upper connecting pipe is connected with the upper spraying pipes and used to convey chemical water to the upper spraying pipes, the lower connecting pipe is connected with the lower spraying pipes and used to convey chemical water to the lower spraying pipes, and the upper connecting pipe and the lower connecting pipe are both connected with the swinging device.

[0007] In some embodiments, the swinging device comprises a connecting seat and a swinging driving assembly, the connecting seat is connected with the upper connecting pipe and the lower connecting pipe respectively, and the swinging driving assembly is connected with the connecting seat and used to drive the connecting seat to reciprocate along the axial direction of the conveying rollers.

[0008] In some embodiments, the connecting seat is provided with a liquid inlet channel, one end of the liquid inlet channel is communicated with the upper connecting pipe and / or the lower connecting pipe, and the other end is used to connect an external liquid inlet pipe.

[0009] In some embodiments, the swing device further comprises a guide rail extending along the axial direction of the conveying roller, and the connecting seat is in sliding fit with the guide rail.

[0010] In some embodiments, the swing driving assembly comprises a driving mechanism, a rotating rod, an eccentric wheel and a swing shaft, the driving mechanism is connected with the rotating rod and is used to drive the rotating rod to rotate, the eccentric wheel is fixed at the end of the rotating rod and can rotate eccentrically relative to the rotating rod, the swing shaft extends along the axial direction of the conveying roller, and the two ends of the swing shaft are respectively connected with the eccentric wheel and the connecting seat in rotation; the rotation axis of the eccentric wheel, the rotation axis of the swing shaft relative to the eccentric wheel and the rotation axis of the swing shaft relative to the connecting seat are parallel to each other, and the rotation axis of the eccentric wheel is perpendicular to the axial direction of the conveying roller.

[0011] In some embodiments, the circuit board processing equipment with the spraying device further comprises a housing, the conveying device, the spraying device and the connecting seat are arranged in the housing, the driving mechanism, the rotating rod and the eccentric wheel are arranged outside the housing, the housing is provided with a through hole, the swing shaft is arranged in the through hole, and a water blocking mechanism for limiting the outflow of the chemical liquid from the through hole is further arranged on the swing shaft.

[0012] In some embodiments, the water blocking mechanism comprises a water blocking plate and an elastic sleeve, the swing shaft passes through the water blocking plate and is connected with the water blocking plate, the elastic sleeve is sleeved on the outside of the swing shaft, one end of the elastic sleeve is connected with the water blocking plate, and the other end of the elastic sleeve is connected with the inner wall of the housing and covers the through hole.

[0013] In some embodiments, the swing device is located at one end of the upper spraying pipe and the lower spraying pipe, the other end of the upper spraying pipe and the lower spraying pipe is provided with a support, and the upper spraying pipe and the lower spraying pipe are arranged on the support or are in sliding connection with the support along the axial direction of the conveying roller.

[0014] In some embodiments, the support is further provided with a limiting mechanism for limiting the movement of the upper spraying pipe and the lower spraying pipe along the conveying direction.

[0015] The swing device of the present application can drive the upper spraying pipe and the lower spraying pipe to reciprocate along the axial direction of the conveying roller, the nozzles can change the positions of spraying the chemical liquid on the circuit board, the chemical liquid can be sprayed more uniformly, the chemical reaction on the circuit board is relatively uniform, and the quality of the circuit board is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 FIG. 1 is a structural schematic view of a circuit board processing equipment with a spraying device according to an embodiment of the present application;

[0017] Figure 2 FIG. 2 is a structural schematic view of the circuit board processing equipment with the spraying device according to the embodiment of the present application after removing the housing.

[0018] Figure 3 As Figure 2 Structure schematic diagram of the circuit board processing equipment with the spraying device in another perspective view;

[0019] Figure 4 As Figure 2 Enlarged schematic diagram of A in the figure;

[0020] Figure 5 As Figure 3 Enlarged schematic diagram of B in the figure;

[0021] Figure 6 Structure schematic diagram of the connecting seat of one embodiment of the application;

[0022] Figure 7 Exploded schematic diagram of the connecting seat of one embodiment of the application;

[0023] Figure 8 As Figure 2 Enlarged schematic diagram of C in the figure.

[0024] Wherein, the reference signs are:

[0025] Housing 10;

[0026] Conveying device 100, conveying roller 110;

[0027] Spraying device 200, upper spraying pipe 210, lower spraying pipe 220, nozzle 230, medicine 231, upper connecting pipe 240, lower connecting pipe 250, support 260, support rod 261, limiting wheel 262, limiting groove 263, liquid inlet pipe 270;

[0028] Swing device 300, connecting seat 310, liquid inlet channel 311, sliding block 312, through slot 313, rotating hole 314, accommodating cavity 315, drain hole 316, base 3111, side plate 3112;

[0029] Swing driving assembly 320, driving mechanism 321, rotating rod 322, eccentric wheel 323, swing shaft 324, guide rail 330, water blocking mechanism 340, water blocking plate 341, telescopic sleeve 342. DETAILED DESCRIPTION

[0030] The present application provides the following description with reference to the accompanying drawings to help fully understand various embodiments of the present application as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as just exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present application.

[0031] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, and right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0032] It will be understood that when one element (e.g., a first element) is “connected” to another element (e.g., a second element), the element may be directly connected to the other element or an intervening element (e.g., a third element) may be present between the element and the other element.

[0033] The embodiment of the present invention provides a circuit board processing equipment with a spray device, such as Figures 1-5 As shown, the apparatus comprises a conveying device 100, a spraying device 200, and an oscillating device 300. The conveying device 100 includes a plurality of conveying rollers 110 arranged along the conveying direction. The circuit boards are placed on the conveying rollers 110 and move along the conveying direction as the conveying rollers 110 rotate. The spraying device 200 includes a plurality of upper spray pipes 210 located above the conveying rollers 110 and a plurality of lower spray pipes 220 located below the conveying rollers 110. During the spraying operation, the upper spray pipes 210 are located above the circuit boards, while the lower spray pipes 220 are located below the circuit boards. Both the upper spray pipes 210 and the lower spray pipes 220 are fixed with nozzles 230 for spraying liquid medicine onto the circuit boards. The nozzles 230 on the upper spray pipes 210 are used to spray the liquid medicine downward, while the nozzles 230 on the lower spray pipes 220 are used to spray the liquid medicine upward. The upper spray pipe 210 and the lower spray pipe 220 are both connected to the swing device 300. The swing device 300 is used to drive the upper spray pipe 210 and the lower spray pipe 220 to move back and forth along the axial direction of the conveying roller 110. The axial direction of the conveying roller 110 is perpendicular to the conveying direction. As the upper spray pipe 210 and the lower spray pipe 220 move back and forth, the nozzles 230 on the upper spray pipe 210 and the lower spray pipe 220 will correspondingly change the position of spraying the solution onto the circuit board, thereby spraying the solution more evenly, making the chemical reaction on the circuit board relatively uniform, thereby improving the quality of the circuit board.

[0034] In this embodiment, two sets of swing devices 300 can be provided, each driving the upper spray pipe 210 and the lower spray pipe 220 to reciprocate along the axial direction of the conveyor roller 110, so that the upper spray pipe 210 and the lower spray pipe 220 can move asynchronously. Of course, a single set of swing devices 300 can also be provided to drive the upper spray pipe 210 and the lower spray pipe 220 to move synchronously.

[0035] In the embodiment, the axial direction of the upper spraying pipe 210 and the axial direction of the lower spraying pipe 220 can be parallel to the conveying direction, form an acute angle or be perpendicular to the conveying direction. In consideration of the convenience of the overall structural arrangement, the axial direction of the upper spraying pipe 210 and the axial direction of the lower spraying pipe 220 are preferably arranged to be perpendicular to the conveying direction. Correspondingly, the nozzles 230 on the upper spraying pipe 210 are distributed along the axial direction thereof, and the nozzles 230 on the lower spraying pipe 220 are also distributed along the axial direction thereof. The distance between two adjacent nozzles 230 can be equal to the distance by which the oscillating device 300 drives the upper spraying pipe 210 and the lower spraying pipe 220 to move along the axial direction of the conveying roller 110, so as to overcome the problem of uneven spraying of the medicinal liquid caused by the distance between two adjacent nozzles 230, thereby further improving the uniformity of the spraying of the medicinal liquid.

[0036] In some embodiments, as shown in Figures 1-5 The spraying device 200 further includes an upper connecting pipe 240 and a lower connecting pipe 250 extending along the conveying direction. The upper connecting pipe 240 is connected to the upper spraying pipe 210 and used to convey the medicinal liquid to the upper spraying pipe 210, and the lower connecting pipe 250 is connected to the lower spraying pipe 220 and used to convey the medicinal liquid to the lower spraying pipe 220. The upper connecting pipe 240 and the lower connecting pipe 250 are both connected to the oscillating device 300, and the oscillating device 300 is used to drive the upper connecting pipe 240 and the lower connecting pipe 250 to reciprocate along the axial direction of the conveying roller 110, thereby driving the upper spraying pipe 210 and the lower spraying pipe 220 to reciprocate along the axial direction of the conveying roller 110.

[0037] The upper spraying pipe 210 and the lower spraying pipe 220 both need to be supplied with the medicinal liquid from the external pipeline to ensure the continuous spraying of the medicinal liquid. In the embodiment, the upper connecting pipe 240 and the lower connecting pipe 250 not only serve as the conveying pipeline of the medicinal liquid, but also connect the oscillating device 300 and the corresponding spraying pipe respectively to conduct the driving force of the oscillating device 300, thereby simplifying the overall structure and facilitating the configuration of the medicinal liquid supply pipeline.

[0038] Further, the oscillating device 300 includes a connecting seat 310 and an oscillating driving assembly 320. The connecting seat 310 is connected to the upper connecting pipe 240 and the lower connecting pipe 250 respectively, and the oscillating driving assembly 320 is connected to the connecting seat 310 and used to drive the connecting seat 310 to reciprocate along the axial direction of the conveying roller 110. In the embodiment, the connecting seat 310 connects the upper connecting pipe 240 and the lower connecting pipe 250 into a whole, so that the upper connecting pipe 240 and the lower connecting pipe 250 are linked together. Correspondingly, the upper spraying pipe 210 and the lower spraying pipe 220 can synchronously move along the axial direction of the conveying roller 110, so as to better control the spraying position of the medicinal liquid. Moreover, the driving force is provided by the same oscillating driving assembly 320, thereby simplifying the structural configuration.

[0039] The connecting seat 310 can be located at the middle part of the upper connecting pipe 240 and the lower connecting pipe 250. In consideration of the fact that the upper connecting pipe 240 and the lower connecting pipe 250 are both relatively long, two sets of connecting seats 310 and swing driving assemblies 320 can be provided, and the two connecting seats 310 are respectively located at the two ends of the upper connecting pipe 240 and the lower connecting pipe 250 to connect the two ends of the upper connecting pipe 240 and the lower connecting pipe 250, respectively. The two swing driving assemblies 320 will drive the two connecting seats 310 to move synchronously along the axial direction of the conveying roller 110. On the one hand, this can provide greater driving force to drive the entire mechanism to move along the axial direction of the conveying roller 110, and on the other hand, this can prevent the upper connecting pipe 240 and the lower connecting pipe 250 from being deviated during movement, thereby ensuring that the upper connecting pipe 240 and the lower connecting pipe 250 can stably move along the axial direction of the conveying roller 110.

[0040] Further, as shown in Figure 5 , Figure 6 and Figure 7 , the connecting seat 310 is provided with a liquid inlet channel 311. One end of the liquid inlet channel 311 is used to connect an external liquid inlet pipe 270, and the other end can be in communication with the upper connecting pipe 240, or in communication with the lower connecting pipe 250, or in communication with both the upper connecting pipe 240 and the lower connecting pipe 250. The liquid inlet pipe 270 is used to deliver the medicine liquid to the connecting seat 310, and the medicine liquid enters the corresponding upper connecting pipe 240 and / or lower connecting pipe 250 through the liquid inlet channel 311 to achieve the delivery of the medicine liquid.

[0041] In this embodiment, the two ends of the liquid inlet channel 311 form openings on the connecting seat 310, and the liquid inlet pipe 270, the upper connecting pipe 240 and the lower connecting pipe 250 can be inserted into the openings to achieve both the fixed connection and the communication of the medicine liquid delivery pipeline.

[0042] In some embodiments, as shown in Figures 2-6 , the swing device further includes a guide rail 330 extending along the axial direction of the conveying roller 110, and the connecting seat 310 is in sliding cooperation with the guide rail 330, which can guide the connecting seat 310 to stably move along the axial direction of the conveying roller 110, and at the same time, provides more choices for the specific structure of the swing driving assembly 320, and the driving force of the swing driving assembly 320 in other directions will not cause the position deviation of the movement of the connecting seat 310.

[0043] In this embodiment, a sliding block 312 extending along the axial direction of the conveying roller 110 can be provided on the connecting seat 310, and a guide rail groove compatible with the sliding block 312 can be provided on the guide rail 330, and the sliding block 312 is arranged in the guide rail groove and slides along the guide rail groove.

[0044] In some embodiments, as shown in Figures 2-5As shown, the swing driving assembly 320 comprises a driving mechanism 321, a rotating rod 322, an eccentric wheel 323 and a swing shaft 324, the driving mechanism 321 is connected with the rotating rod 322 and is used to drive the rotating rod 322 to rotate, the eccentric wheel 323 is fixed on the end of the rotating rod 322, when the rotating rod 322 rotates, the eccentric wheel 323 rotates eccentrically relative to the rotating rod 322. In the default state, the swing shaft 324 extends along the axial direction of the conveying roller 110, and the two ends of the swing shaft 324 are respectively connected with the eccentric wheel 323 and the connecting seat 310. The rotating axis of the eccentric wheel 323, the rotating axis of the swing shaft 324 relative to the eccentric wheel 323 and the rotating axis of the swing shaft 324 relative to the connecting seat 310 are parallel to each other, and the rotating axis of the eccentric wheel 323 is perpendicular to the axial direction of the conveying roller 110, so that the eccentric wheel 323 and the swing shaft 324 rotate in the same plane or in parallel planes, and this rotation will exert a force on the swing shaft 324, and because the connecting seat 310 is in sliding fit with the guide rail 330, the swing shaft 324 can push or pull the connecting seat 310 to reciprocate along the axial direction of the conveying roller 110, forming an effect similar to a piston rod of an engine.

[0045] Compared with directly driving the connecting seat 310 to reciprocate along the axial direction of the conveying roller 110 by the driving mechanism, the driving structure of the embodiment is shorter in the axial direction of the conveying roller 110, thereby reducing the space occupation, so that more space can be used to configure the conveying device and the spraying device.

[0046] In the embodiment, the driving mechanism 321 can comprise a motor, the motor drives the rotating rod 322 to rotate, and the rotating rod 322 can extend along the conveying direction. The end of the swing shaft 324 can be provided with a sleeve ring, the sleeve ring is sleeved on the eccentric wheel 323 and can rotate relative to the eccentric wheel 323, so as to realize the rotating connection between the swing shaft 324 and the eccentric wheel 323.

[0047] Further, as shown, Figures 1-5 The circuit board processing equipment with the spraying device further comprises a shell 10, the conveying device 100, the spraying device 200 and the connecting seat 310 are all arranged in the shell 10, which plays a dustproof protection role on the conveying device 100, the spraying device 200 and the connecting seat 310, and can also reduce the splashing of the chemical solution.

[0048] The driving mechanism 321, the rotating rod 322 and the eccentric wheel 323 are all arranged outside the shell 10, on the one hand, this can reduce the occupation of the internal space of the shell 10, so that the internal space of the shell 10 can accommodate a circuit board with a larger size, on the other hand, it avoids the chemical solution from splashing on the driving mechanism 321, and guarantees the stable work of the driving mechanism 321.

[0049] Correspondingly, the shell 10 is provided with a through hole, and the swing shaft 324 is arranged in the through hole, so that two ends of the swing shaft 324 are rotatably connected with the eccentric wheel 323 and the connecting seat 310 respectively. Meanwhile, the swing shaft 324 is further provided with a water blocking mechanism 340 for limiting the outflow of the liquid medicine from the through hole, so that the liquid medicine cannot flow out of the shell 10 through the through hole, and the loss of the liquid medicine is reduced.

[0050] Further, the water blocking mechanism 340 comprises a water blocking plate 341 and an elastic sleeve 342, the swing shaft 324 passes through the water blocking plate 341 and is connected with the water blocking plate 341, the elastic sleeve 342 is sleeved on the outside of the swing shaft 324, one end of the elastic sleeve 342 is connected with the water blocking plate 341, and the other end is connected with the inner wall of the shell 10 and covers the through hole. The water blocking plate 341 and the elastic sleeve 342 block the through hole, so that the liquid medicine cannot flow out of the shell 10 through the through hole. Meanwhile, since the elastic sleeve 342 can elastically stretch and contract, the movement of the swing shaft 324 is not affected, and the swing shaft 324 can still drive the connecting seat 310 to reciprocate along the axial direction of the conveying roller 110.

[0051] In the embodiment, the swing shaft 324 and the water blocking plate 341 can be integrally connected, which is convenient for overall manufacturing and forming, strengthens the connection strength of the swing shaft 324 and the water blocking plate 341, and avoids the gap between the swing shaft 324 and the water blocking plate 341, so that the liquid medicine cannot enter the elastic sleeve 342.

[0052] In some embodiments, as shown in Figures 4-7 The connecting seat 310 can comprise a base 3111 and a side plate 3112, and the base 3111 and the side plate 3112 can enclose a containing cavity 315, and a part of the containing cavity 315 forms a liquid inlet channel 311. The connecting seat 310 in the embodiment adopts a split structure, which is convenient for arranging the liquid inlet channel 311 and can reduce the material use of the connecting seat 310 and the manufacturing cost.

[0053] The connecting seat 310 can be provided with a through slot 313 penetrating the connecting seat 310 along the axial direction of the conveying roller 110, the inner wall of the through slot 313 can be provided with a rotating hole 314, a support rod is arranged in the rotating hole 314, and the end of the swing shaft 324 is provided with a penetrating opening, the support rod is arranged in the opening and can rotate in the opening, so as to realize the rotating connection between the connecting seat 310 and the swing shaft 324.

[0054] The rotating hole 314 can be communicated with the containing cavity 315, and the bottom of the connecting seat 310 can be provided with a drain hole 316 communicated with the containing cavity 315, so that when the liquid medicine enters the containing cavity 315 along the support rod, the liquid medicine can be drained through the drain hole 316, so as to avoid the accumulation of the liquid medicine in the containing cavity 315.

[0055] In some embodiments, as shown in Figure 1 , Figure 2And Figure 8 As shown in FIG. 1, the swing device 300 is located at one end of the upper spray pipe 210 and the lower spray pipe 220, which can avoid the swing device 300 interfering with the conveying device 100 conveying the circuit board. The other end of the upper spray pipe 210 and the lower spray pipe 220 is provided with a bracket 260, and the upper spray pipe 210 and the lower spray pipe 220 are clamped on the bracket 260. When the swing device 300 drives the upper spray pipe 210 and the lower spray pipe 220 to reciprocate along the axis of the conveying roller 110, the end of the upper spray pipe 210 and the lower spray pipe 220 close to the bracket 260 will move on the bracket 260 accordingly, and the bracket 260 supports the upper spray pipe 210 and the lower spray pipe 220 to keep them stable, while not limiting the reciprocating movement of the upper spray pipe 210 and the lower spray pipe 220 along the axis of the conveying roller 110.

[0056] Further, the bracket 260 is also provided with a limiting mechanism for limiting the movement of the upper spray pipe 210 and the lower spray pipe 220 along the conveying direction, so that the upper spray pipe 210 and the lower spray pipe 220 can keep moving along the axis of the conveying roller 110.

[0057] Further, the bracket 260 can include a supporting rod 261 and a limiting wheel 262 sleeved on the supporting rod 261, and the end of the upper spray pipe 210 and the lower spray pipe 220 close to the bracket 260 is clamped on the limiting wheel 262. The supporting rod 261 extends along the conveying direction, and the limiting mechanism is a limiting groove 263 provided on the circumferential surface of the limiting wheel 262, and a part of the upper spray pipe 210 and the lower spray pipe 220 is embedded in the limiting groove 263 to limit the movement of the upper spray pipe 210 and the lower spray pipe 220 along the conveying direction.

[0058] In other embodiments, the end of the upper spray pipe 210 and the lower spray pipe 220 close to the bracket 260 can be slidably connected with the bracket 260 along the axis of the conveying roller 110, which is better for guiding and limiting the upper spray pipe 210 and the lower spray pipe 220. Further, the bracket 260 can also be provided with a limiting mechanism for limiting the movement of the upper spray pipe 210 and the lower spray pipe 220 along the conveying direction, so that the upper spray pipe 210 and the lower spray pipe 220 can keep moving along the axis of the conveying roller 110.

[0059] In some embodiments, as shown in FIG. 1, the conveying roller 110 can be provided in two groups, and the circuit board is arranged between the two groups of conveying rollers 110. The lower conveying roller 110 supports the circuit board from the bottom of the circuit board, and the upper conveying roller 110 abuts against the top surface of the circuit board to limit the circuit board from being warped or jumping upward from above, so that the circuit board can move stably along the conveying direction. Figures 1-3

[0060] In some embodiments, as shown in FIG. 1, the conveying roller 110 can be provided in two groups, and the circuit board is arranged between the two groups of conveying rollers 110. The lower conveying roller 110 supports the circuit board from the bottom of the circuit board, and the upper conveying roller 110 abuts against the top surface of the circuit board to limit the circuit board from being warped or jumping upward from above, so that the circuit board can move stably along the conveying direction. Figures 1-3 ​As shown, a conveying wheel may be sleeved on the conveying roller 110, and the conveying wheel rotates with the conveying roller 110. During the process of conveying the circuit board, the conveying wheel contacts the circuit board, thereby reducing the contact area with the circuit board, allowing more areas on the circuit board to contact the solution, thereby ensuring a chemical reaction between the circuit board and the solution.

[0061] It should be noted that Figure 2 and Figure 3 The triangular structure connected to the nozzle 230 is a schematic diagram of the liquid medicine 231 sprayed by the nozzle 230.

[0062] The terms and words used in the above description and claims are not limited to the literal meanings, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided for illustration only and is not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A circuit board processing equipment with a spray device, characterized in that: The device comprises a conveying device, a spraying device, and a swinging device. The conveying device comprises a plurality of conveying rollers arranged along the conveying direction. The spraying device comprises a plurality of upper spraying pipes located above the conveying rollers and a plurality of lower spraying pipes located below the conveying rollers. Nozzles for spraying liquid medicine onto the circuit boards are fixed to the upper spraying pipes and the lower spraying pipes. The upper spraying pipes and the lower spraying pipes are both connected to the swinging device, and the swinging device is used to drive the upper spraying pipes and the lower spraying pipes to reciprocate along the axial direction of the conveying rollers. The spraying device further includes an upper connecting pipe and a lower connecting pipe extending along the conveying direction, wherein the upper connecting pipe is connected to the upper spraying pipe and is used to convey the liquid medicine to the upper spraying pipe, and the lower connecting pipe is connected to the lower spraying pipe and is used to convey the liquid medicine to the lower spraying pipe, and the upper connecting pipe and the lower connecting pipe are both connected to the swinging device; The swing device includes a connecting seat and a swing drive assembly, wherein the connecting seat is connected to the upper connecting tube and the lower connecting tube respectively, and the swing drive assembly is connected to the connecting seat and is used to drive the connecting seat to reciprocate along the axial direction of the conveying roller; The connecting seat is provided with a liquid inlet channel, one end of which is connected to the upper connecting pipe and / or the lower connecting pipe, and the other end is used to connect to the external liquid inlet pipe; The swing device further comprises a guide rail extending along the axial direction of the conveying roller, and the connecting seat is in sliding engagement with the guide rail; The swing drive assembly includes a driving mechanism, a rotating rod, an eccentric wheel and a swing shaft. The driving mechanism is connected to the rotating rod and is used to drive the rotating rod to rotate. The eccentric wheel is fixed to the end of the rotating rod and can rotate eccentrically relative to the rotating rod. The swing shaft extends along the axial direction of the conveying roller, and the two ends of the swing shaft are rotatably connected to the eccentric wheel and the connecting seat respectively. The rotation axis of the eccentric wheel, the rotation axis of the swing shaft relative to the eccentric wheel, and the rotation axis of the swing shaft relative to the connecting seat are parallel to each other, and the rotation axis of the eccentric wheel is perpendicular to the axial direction of the conveying roller. The connecting seat includes a base and a side plate, the base and the side plate enclose a receiving cavity, and a portion of the receiving cavity forms a liquid inlet channel; The connecting seat is provided with a through groove which penetrates the connecting seat along the axial direction of the conveying roller, the inner wall of the through groove is provided with a rotation hole, a support rod is passed through the rotation hole, and an opening is provided through the end of the swing shaft, the support rod is passed through the opening and can rotate in the opening; The rotating hole is communicated with the accommodating cavity, and a drainage hole communicated with the accommodating cavity is provided at the bottom of the connecting seat.

2. The circuit board processing equipment with a spray device according to claim 1, characterized in that: The circuit board processing equipment with a spray device also includes a shell, the conveying device, the spray device and the connecting seat are all arranged in the shell, the driving mechanism, the rotating rod and the eccentric wheel are all arranged on the outside of the shell, the shell is provided with a through hole, the swing shaft is passed through the through hole, and the swing shaft is also provided with a water blocking mechanism for limiting the flow of the medicine out of the through hole.

3. The circuit board processing equipment with a spray device according to claim 2, characterized in that: The water-blocking mechanism includes a water-blocking plate and a telescopic sleeve. The swing shaft passes through the water-blocking plate and is connected to the water-blocking plate. The telescopic sleeve is sleeved on the outside of the swing shaft. One end of the telescopic sleeve is connected to the water-blocking plate, and the other end is connected to the inner wall of the shell and covers the through hole.

4. The circuit board processing equipment with a spray device according to any one of claims 1 to 3, characterized in that: The swing device is located at one end of the upper spray pipe and the lower spray pipe, and the other end of the upper spray pipe and the lower spray pipe are both provided with a bracket. The upper spray pipe and the lower spray pipe are both placed on the bracket or are both slidably connected with the bracket along the axial direction of the conveyor roller.

5. The circuit board processing equipment with a spray device according to claim 4, characterized in that: The bracket is also provided with a limiting mechanism for limiting the movement of the upper spray pipe and the lower spray pipe along the conveying direction.

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