PCB spraying etching machine and method thereof

Abstract

The invention discloses a PCB (printed circuit board) spraying etching machine and a method thereof, belongs to the technical field of spraying etching machines, and provides the following scheme that the PCB spraying etching machine comprises a spraying etching mechanism, a cleaning mechanism is assembled in the spraying etching mechanism, and the spraying etching mechanism comprises etching equipment; the first motor drives the rotating shaft to rotate, the rotating shaft drives the worm and the worm gear to conduct transmission, the polygonal cylinder drives the conveying wheel to rotate, the conveying wheel can achieve the purpose of automatic material conveying, meanwhile, the conveying pump sprays etching liquid to a circuit board through the spraying heads, the angles of the spraying heads are different, and therefore spraying uniformity can be kept, and the spraying efficiency is improved. And the rotating shaft also drives the cam to rotate, so that the cam extrudes the pulley to move, and the cam can be matched with the first spring to realize the reciprocating translational motion of the polygonal cylinder, so that the conveying wheel drives the circuit board to do reciprocating motion, the circuit board can be uniformly etched, and the processing quality of the circuit board is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of spray etcher, and in particular to a PCB circuit board spray etcher and a method thereof. Background Art

[0002] In the process of processing PCB circuit boards, a spray etcher is often needed. At present, the spray etcher in the prior art is generally fed from one end of the equipment and discharged from the other end. During spray etching, since the angle of the spray head is generally fixed, the spray angle of the PCB circuit board is also fixed during the process of spraying the etching liquid, and the front and rear positions of the PCB circuit board are also fixed, so that the PCB circuit board cannot be etched evenly. Moreover, after the etching is completed, it is generally only cleaned by simple spraying, which cannot be cleaned evenly and carefully, resulting in that the etching liquid remaining at some angles is difficult to be cleaned, thereby affecting the production quality of the circuit board.

[0003] In view of the above problems, the present invention document proposes a PCB circuit board spray etching machine and method thereof. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that since the angle of the spray head is generally fixed, the spray angle of the PCB circuit board is also fixed during the etching liquid spraying process, and the front and rear positions of the PCB circuit board are also fixed, so that the PCB circuit board cannot be uniformly etched, and after the etching is completed, it is generally only cleaned by simple spraying, and it cannot be cleaned evenly and carefully, resulting in that the etching liquid residual at some angles is difficult to be cleaned, thereby affecting the production quality of the circuit board. A PCB circuit board spray etcher and method are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A PCB circuit board spray etcher comprises a spray etching mechanism, wherein a cleaning mechanism is installed in the spray etching mechanism; The spray etching mechanism comprises an etching device, wherein a spray assembly and an adjustable conveying assembly are arranged in the etching device, wherein the adjustable conveying assembly is located below the spray assembly, and the adjustable conveying assembly is driven by the first driving assembly; The cleaning mechanism includes a water supply component, which is connected to the liquid outlet component, and the liquid outlet component is transmission-connected to the second drive component. A plurality of nozzle adjustment components are arranged below the liquid outlet component, and the plurality of nozzle adjustment components are arranged in a circular plate, and the circular plate is fixedly connected to the top wall of the etching device.

[0006] Preferably, the spray assembly includes a delivery pump, which is fixedly installed above the etching equipment. The inlet end of the delivery pump extends downward to the bottom of the etching equipment. The outlet end of the delivery pump is connected to a delivery pipe, which passes through the etching equipment and is connected to a flow equalizing shell. A plurality of spray heads are arranged below the flow equalizing shell, and the plurality of spray heads are arranged at different angles.

[0007] Preferably, the water delivery component comprises a water pump, the water pump is fixedly mounted on the etching device, the water inlet of the water pump is connected to the water inlet pipe, and the water outlet of the water pump is connected to the water outlet pipe.

[0008] Preferably, the liquid outlet assembly includes a connecting pipe, the connecting pipe is rotatably connected to the outside of the water outlet pipe through a bearing, the connecting pipe is connected to the water outlet pipe, and the connecting pipe is also rotatably connected to the etching device through a bearing; A plurality of first hoses are connected to the bottom of the connecting pipe, the first hose is connected to one of the nozzles, and every two nozzles are connected via a second hose. A third gear is fixedly connected to the top of the nozzle, and the third gear is rotatably connected to two connecting blocks via a pin shaft. The connecting blocks are fixedly connected to the bottom of the turntable, and the connecting pipe is installed on the turntable.

[0009] Preferably, the nozzle adjustment assembly includes a tooth plate, one end of the tooth plate is fixedly connected to a second spring, the second spring is fixedly connected to a connecting pipe, the tooth plate is slidably connected to a guide frame, the guide frame is fixedly connected to the bottom of the turntable, the other end of the tooth plate is fixedly connected to a roller, the roller is in contact with the inner wall of the circular ring plate, and the inner wall of the circular ring plate is wavy.

[0010] Preferably, the second driving assembly includes a second motor, the second motor is fixedly mounted on the etching device, the output shaft of the second motor is fixedly connected to a first gear, the first gear is meshed with a second gear, and the second gear is fixedly connected to a connecting tube.

[0011] Preferably, the first driving component includes a fixed plate, which is fixedly connected to the inner wall of the etching device, and two fixed blocks are fixedly connected to the fixed plate, one of which is fixedly mounted with a first motor, and the output shaft of the first motor is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the two fixed blocks via two bearings, and a plurality of worms and a plurality of cams are fixedly connected to the rotating shaft.

[0012] Preferably, the adjustable conveying assembly includes a plurality of polygonal rods, both ends of which are rotatably connected to a fixed plate and a support plate via bearings, the support plate is fixedly connected to an inner wall of the etching device, a polygonal tube is sleeved on the polygonal rods, the plurality of polygonal tubes are rotatably connected to a connecting plate via bearings, a worm wheel is fixedly connected to the polygonal tube, and the worm wheel is meshed with a worm.

[0013] Preferably, a plurality of pulleys are fixedly connected above the connecting plate, the pulleys correspond to the positions of the cams, and a plurality of conveying wheels are also fixedly connected to the polygonal cylinder; One end of the polygonal tube is fixedly connected to a first spring, and the first spring is fixedly connected to the support plate.

[0014] A method for using a PCB circuit board spray etcher comprises the following steps: S1. When spray etching is performed on a circuit board, the etching device operates a first motor to drive the rotating shaft to rotate, the rotating shaft drives the worm to rotate, the worm and the worm gear drive, the worm gear drives the polygonal cylinder to rotate, the polygonal cylinder drives the conveying wheel to rotate, and the conveying wheel conveys the circuit board to the etching device. At this time, the conveying pump conveys the etching liquid into the conveying pipe, and sprays the etching liquid through the flow equalizing shell and the spray head, so that the etching liquid is sprayed onto the circuit board; S2. When the shaft rotates, the shaft also drives the cam to rotate. The cam squeezes the pulley, so that the pulley drives the connecting plate and the polygonal tube to slide and translate. The polygonal tube drives the first spring to deform. When the convex surface of the cam moves away from the pulley, the first spring drives the polygonal tube to reset. The cam cooperates with the first spring to keep the polygonal tube to reciprocate, so that the conveying wheel drives the circuit board to reciprocate, so as to keep the etching liquid sprayed evenly on the circuit board. S3. After the etching operation of the circuit board is completed, liquid is extracted through a water pump, and the liquid is transported through the connecting pipe and the first hose, and the liquid is sprayed out through the nozzle, so that the liquid is sprayed onto the circuit board for cleaning, and the second motor also drives the first gear and the second gear to transmit, and the second gear drives the connecting pipe and the turntable to rotate, so that the nozzle rotates to clean the circuit board, and at the same time, the tooth plate rotates with the turntable, so that the roller and the wave convex surface of the annular plate are squeezed and moved, and at the same time, the second spring is used to make the tooth plate reciprocate, so that the tooth plate and the third gear are transmitted, so that the nozzle swings to achieve the operation of evenly cleaning the circuit board.

[0015] Compared with the prior art, the present invention provides a PCB circuit board spray etching machine and method thereof, which have the following beneficial effects: 1. The PCB circuit board spray etching machine and method thereof drive the rotating shaft to rotate through the first motor, and the rotating shaft drives the worm and the worm gear to drive, so that the polygonal cylinder drives the conveying wheel to rotate, so that the conveying wheel can realize the purpose of automatic material feeding, and at the same time, the conveying pump sprays the etching liquid onto the circuit board through the spray head, and each spray head has a different angle, so that the uniformity of the spraying can be maintained, and the rotating shaft also drives the cam to rotate, so that the cam squeezes the pulley to move, so that the cam can cooperate with the first spring to realize the reciprocating translation movement of the polygonal cylinder, so that the conveying wheel drives the circuit board to reciprocate, so that the circuit board can be etched evenly, thereby improving the processing quality of the circuit board.

[0016] 2. The PCB circuit board spray etching machine and method thereof drive the first gear and the second gear through the second motor, so that the second gear drives the connecting pipe and the turntable to rotate, so that the nozzle can rotate. At this time, the water pump sprays liquid through the nozzle, and the liquid is sprayed out by centrifugation to increase the uniformity of the spray. At the same time, the tooth plate rotates with the turntable, and the roller is squeezed by the wave convex surface of the circular ring plate, so that the tooth plate squeezes the second spring to deform. When the roller moves to the concave surface of the circular ring plate, the second spring drives the tooth plate to reset, so that the second spring cooperates with the wave shape of the circular ring plate to drive the tooth plate to reciprocate, and the tooth plate and the third gear reciprocate, thereby realizing the swing cleaning operation of the nozzle, and further improving the cleaning effect of the circuit board.

[0017] 3. The PCB circuit board spray etcher and method thereof drive the first rotating shaft to rotate by the first motor, so that the cam rotates and cooperates with the first spring to drive the polygonal cylinder to realize reciprocating motion, so that the conveying wheel drives the circuit board to reciprocate, and at the same time the second motor drives the first gear and the second gear to transmit, so that the connecting pipe and the turntable rotate, so that the nozzle performs centrifugal cleaning operation, increases the liquid flow area, and at the same time the roller moves on the wave surface of the circular ring plate, and cooperates with the second spring to realize the reciprocating transmission of the tooth plate and the gear, so that the nozzle swings to perform spraying operations at different angles, improves the flushing effect of the liquid, and swings the circuit board through the conveying wheel, so that the etching liquid can be kept evenly filling the circuit board, reducing pores, thereby further reducing the adhesion of the etching liquid and the residual liquid, improving the cleaning effect and facilitating the dewatering operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional view of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Figure 2 A rear stereoscopic view of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Figure 3 A three-dimensional view of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Figure 4 A view showing the connection between a first driving component and an adjustable conveying component of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Figure 5 A three-dimensional view of a PCB circuit board spray etcher and etching device of a method thereof proposed by the present invention, viewed from above; Figure 6 A three-dimensional view of a spray assembly of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Figure 7 A three-dimensional view of a circular ring plate of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Figure 8 A view showing the connection between a circular ring plate and a nozzle adjustment assembly of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Fig. 9 A three-dimensional view of a nozzle adjustment assembly of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Fig.10 A three-dimensional view of a support plate of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Fig.11 For the present invention Fig.10 A magnified view of point A; Fig.12 A three-dimensional view of a conveying wheel of a PCB circuit board spray etching machine and method thereof proposed by the present invention; Fig.13 For the present invention Fig.12 Enlarged view of point B.

[0019] In the figure: 100, spray etching mechanism; 101, etching equipment; 102, spray assembly; 1021, delivery pump; 1022, flow equalizing shell; 1023, spray head; 1024, delivery pipe; 103, adjustable delivery assembly; 1031, polygonal cylinder; 1032, worm gear; 1033, polygonal rod; 1034, connecting plate; 1035, pulley; 1036, delivery wheel; 1037, first spring; 1038, support plate; 104, first driving assembly; 1041, first motor; 1042, fixed block; 1043, worm; 1044, rotating shaft; 1045, cam; 1046, fixed Plate; 200, cleaning mechanism; 201, water delivery assembly; 2011, water pump; 2012, water outlet pipe; 2013, water inlet pipe; 202, second drive assembly; 2021, second motor; 2022, first gear; 2023, second gear; 203, liquid outlet assembly; 2031, connecting pipe; 2032, first hose; 2033, nozzle; 2034, second hose; 204, annular plate; 205, nozzle adjustment assembly; 2051, tooth plate; 2052, second spring; 2053, guide frame; 2054, roller; 2055, third gear; 2056, connecting block; 206, turntable. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Example 1: Reference Figure 1-4 and Figure 9-13 A PCB circuit board spray etching machine comprises a spray etching mechanism 100, wherein the spray etching mechanism 100 is equipped with a cleaning mechanism 200; The spray etching mechanism 100 includes an etching device 101, in which a spray assembly 102 and an adjustable conveying assembly 103 are provided. The adjustable conveying assembly 103 includes a plurality of polygonal rods 1033, both ends of which are rotatably connected to a fixed plate 1046 and a support plate 1038 through bearings. The polygonal rods 1033 can be stably rotated through the bearings, so that the polygonal cylinder 1031 maintains a stable rotational motion. The support plate 1038 is fixedly connected to the inner wall of the etching device 101. The polygonal cylinder 1031 is sleeved on the polygonal rods 1033. The polygonal cylinder 1031 can slide smoothly on the polygonal rods 1033, so that the position of the conveying wheel 1036 can be adjusted. At the same time, the polygonal structure of the polygonal cylinder 1031 , the rotation of the polygonal tube 1031 can drive the polygonal rod 1033 to realize rotational motion, and the multiple polygonal tubes 1031 are rotatably connected to the connecting plate 1034 through bearings. The polygonal tubes 1031 can rotate smoothly through the bearings and can be connected to the same connecting plate 1034. The movement of the connecting plate 1034 can synchronously drive the multiple polygonal tubes 1031 to move. The polygonal tube 1031 is fixedly connected with a worm wheel 1032, which is meshed with the worm 1043. The worm 1043 and the worm wheel 1032 are driven by the worm 1043, so that the polygonal tube 1031 can be driven to realize rotational motion. The upper part of the connecting plate 1034 is fixedly connected with multiple pulleys 1035. The pulleys 1035 correspond to the positions of the cams 1045. When the cams 1045 and the pulleys 1035 are moved, the worm wheel 1032 is meshed with the worm 1043. The worm wheel 1032 is driven by the worm 1043 and the worm wheel 1032. When the squeezing movement occurs, the connecting plate 1034 can be moved, and the pulley 1035 can reduce the friction resistance between the pulley 1035 and the cam 1045, thereby reducing wear. A plurality of conveying wheels 1036 are also fixedly connected to the polygonal cylinder 1031, and the conveying wheels 1036 are provided with anti-skid protrusions to increase the anti-skid property of the circuit board, thereby ensuring that the conveying wheels 1036 can smoothly drive the circuit board to be conveyed. A first spring 1037 is fixedly connected to one end of the polygonal cylinder 1031, and the elastic force of the first spring 1037 can drive the polygonal cylinder 1031 to reset, and the rotation of the cam 1045 can squeeze the connecting plate 1034 to drive the polygonal cylinder 1031 to translate, so that the first spring 1037 cooperates with the cam 1045 to realize the reciprocating motion of the polygonal cylinder 1031, so that the polygonal cylinder 1031 drives the circuit board to reciprocate, so that the etching liquid of the circuit board can evenly fill the circuit board and reduce the residual liquid. The first spring 1037 is fixedly connected to the support plate 1038. The adjustable delivery component 103 is located below the spray component 102. The spray component 102 includes a delivery pump 1021. The delivery pump 1021 is fixedly installed above the etching device 101. The inlet end of the delivery pump 1021 extends downward to the bottom of the etching device 101. The outlet end of the delivery pump 1021 is connected to the delivery pipe 1024. The delivery pump 1021 can deliver the etching liquid, so that the etching liquid can be sprayed out through the spray head 1023 to etch the circuit board. The delivery pipe 1024 passes through the etching device 101 and is connected to the flow equalizing shell 1022.A plurality of spray heads 1023 are arranged below the flow-balancing shell 1022, and the plurality of spray heads 1023 are arranged at different angles. The multi-angle arrangement of the spray heads 1023 enables the spray heads 1023 to spray at multiple angles to increase the uniformity of the spraying. The adjustable conveying assembly 103 and the first driving assembly 104 are driven. The first driving assembly 104 includes a fixed plate 1046, which is fixedly connected to the inner wall of the etching device 101. Two fixed blocks 1042 are fixedly connected to the fixed plate 1046. A first motor 1041 is fixedly installed on one of the fixed blocks 1042. The output shaft of the first motor 1041 is fixedly connected to a rotating shaft 1044. The rotating shaft 1044 is rotatably connected to the two fixed blocks 1042 through two bearings. The rotating shaft 1044 can maintain stable rotation through the bearings, so that the worm 1043 and the worm wheel 1032 are stably driven. A plurality of worms 1043 and a plurality of cams 1045 are fixedly connected to the rotating shaft 1044.

[0023] In this embodiment: the first motor 1041 drives the rotating shaft 1044 to rotate, and the rotating shaft 1044 drives the worm 1043 and the worm wheel 1032 to transmit, so that the polygonal tube 1031 drives the conveying wheel 1036 to rotate, so that the conveying wheel 1036 can achieve the purpose of automatic feeding, and at the same time the delivery pump 1021 sprays the etching liquid onto the circuit board through the spray head 1023, and each spray head 1023 has a different angle, so that the uniformity of the spraying can be maintained, and the rotating shaft 1044 also drives the cam 1045 to rotate, so that the cam 1045 squeezes the pulley 1035 to move, so that the cam 1045 can cooperate with the first spring 1037 to realize the reciprocating translational motion of the polygonal tube 1031, so that the conveying wheel 1036 drives the circuit board to reciprocate, so that the circuit board can be etched evenly, thereby improving the processing quality of the circuit board.

[0024] Example 2: Reference Figure 5-8A PCB circuit board spray etching machine includes a cleaning mechanism 200, the cleaning mechanism 200 includes a water delivery component 201, the water delivery component 201 includes a water pump 2011, the water pump 2011 is fixedly installed on the etching device 101, the water inlet of the water pump 2011 is connected to the water inlet pipe 2013, the water inlet pipe 2013 is connected to the water source, so that the water pump 2011 can draw water from the water source, so that the liquid can be transported through the connecting pipe 2031 and the first hose 2032, so that the liquid The circuit board is cleaned by spraying out through the nozzle 2033. The water outlet of the water pump 2011 is connected to the water outlet pipe 2012. The water delivery component 201 is connected to the liquid outlet component 203. The liquid outlet component 203 includes a connecting pipe 2031. The connecting pipe 2031 is rotatably connected to the outside of the water outlet pipe 2012 through a bearing. The connecting pipe 2031 can be kept rotating smoothly through the bearing and can also be connected to the water outlet pipe 2012, so that the water delivery operation can be smoothly realized. The connecting pipe 203 1 is connected to the water outlet pipe 2012, the connecting pipe 2031 is also rotatably connected to the etching device 101 through a bearing, a plurality of first hoses 2032 are connected below the connecting pipe 2031, the first hose 2032 and the second hose 2034 can play the role of infusion, and the first hose 2032 and the second hose 2034 are retractable, so that the nozzle 2033 can smoothly perform the swing operation, the first hose 2032 is connected to one of the nozzles 2033, and every two nozzles 2033 are connected through the second hose 2034, and a third gear 2055 is fixedly connected above the nozzle 2033, and the third gear 2055 is rotatably connected to two connecting blocks 2056 through a pin shaft, and the third gear 2055 can be smoothly driven by the pin shaft, so that the third gear 2055 can smoothly drive the nozzle 2033 to swing, and the connecting block 2056 is fixedly connected to the bottom of the rotating disk 206, and the connecting pipe 2031 is penetrated and installed on the rotating disk 206; The liquid outlet component 203 is transmission-connected with the second drive component 202, and the second drive component 202 includes a second motor 2021, which is fixedly mounted on the etching device 101. The output shaft of the second motor 2021 is fixedly connected with a first gear 2022, and the first gear 2022 is meshed with the second gear 2023. The motor drives the first gear 2022 and the second gear 2023 to transmit, so that the connecting pipe 2031 drives the turntable 206 to rotate, so that the turntable 206 can drive the joint to rotate to perform centrifugal cleaning of the circuit board, thereby increasing the multi-angle cleaning operation of the liquid, and the second gear 2023 is fixedly connected to the connecting pipe 2031. A plurality of nozzle adjustment components 205 are arranged below the liquid outlet component 203, and the nozzle adjustment component 205 includes a tooth plate 2051, and one end of the tooth plate 2051 is fixedly connected with a second spring 2052, and the elastic force of the second spring 2052 can drive the tooth plate 2051 to reset, so that the tooth plate 2 The movement of the toothed plate 2051 can be smoothly transmitted with the third gear 2055, so that the wave convex surface of the circular plate 204 can squeeze the toothed plate 2051 to realize the movement, so that the circular plate 204 cooperates with the second spring 2052 to drive the toothed plate 2051 and the third gear 2055 to reciprocate, the second spring 2052 is fixedly connected to the connecting pipe 2031, and the toothed plate 2051 is slidably connected to the guide frame 2053, and the toothed plate 2051 can be guided by the guide frame 2053 to keep the toothed plate 2051 For smooth sliding, the guide frame 2053 is fixedly connected to the bottom of the turntable 206, and the other end of the tooth plate 2051 is fixedly connected to the roller 2054. The movement of the roller 2054 can reduce the friction resistance with the annular plate 204 and reduce wear. The roller 2054 contacts the inner wall of the annular plate 204, and the inner wall of the annular plate 204 is wavy. A plurality of nozzle adjustment assemblies 205 are arranged in the annular plate 204, and the annular plate 204 is fixedly connected to the top wall of the etching equipment 101.

[0025] In this embodiment, the second motor 2021 drives the first gear 2022 and the second gear 2023 to drive, so that the second gear 2023 drives the connecting pipe 2031 and the rotating disk 206 to rotate, so that the nozzle 2033 can rotate. At this time, the water pump 2011 sprays liquid through the nozzle 2033, so that the liquid can be sprayed by centrifugation to increase the uniformity of the spray. At the same time, the tooth plate 2051 rotates with the rotating disk 206, and the roller 2054 is affected by the wave of the annular plate 204. The convex surface generates an extrusion movement, causing the tooth plate 2051 to squeeze the second spring 2052 to deform. When the roller 2054 moves to the concave surface of the annular plate 204, the second spring 2052 drives the tooth plate 2051 to reset, so that the second spring 2052 cooperates with the wave shape of the annular plate 204 to drive the tooth plate 2051 to reciprocate, and the tooth plate 2051 and the third gear 2055 reciprocate, thereby realizing the swing cleaning operation of the nozzle 2033, further improving the cleaning effect of the circuit board.

[0026] Example 3: Reference Figure 5-13 A PCB circuit board spray etcher includes a liquid outlet component 203, the liquid outlet component 203 includes a connecting pipe 2031, the connecting pipe 2031 is rotatably connected to the outside of the water outlet pipe 2012 through a bearing, the connecting pipe 2031 is connected to the water outlet pipe 2012, and the connecting pipe 2031 is also rotatably connected to the etching device 101 through a bearing, a plurality of first hoses 2032 are connected below the connecting pipe 2031, the first hose 2032 is connected to one of the nozzles 2033, and every two nozzles 2033 are connected through a second hose 2034, and a third gear 2055 is fixedly connected above the nozzle 2033, and the third gear 2055 is rotatably connected to two connecting blocks 2056 through a pin shaft, and the connecting block 2056 is fixedly connected to the bottom of the turntable 206, and the connecting pipe 2031 is penetrated and installed on the turntable 206; The nozzle adjustment assembly 205 includes a tooth plate 2051, one end of the tooth plate 2051 is fixedly connected to a second spring 2052, the second spring 2052 is fixedly connected to the connecting pipe 2031, the tooth plate 2051 is slidably connected to a guide frame 2053, the guide frame 2053 is fixedly connected to the bottom of the rotating disk 206, the other end of the tooth plate 2051 is fixedly connected to a roller 2054, the roller 2054 contacts the inner wall of the circular plate 204, and the inner wall of the circular plate 204 is wavy; The second driving assembly 202 includes a second motor 2021, which is fixedly mounted on the etching device 101. The output shaft of the second motor 2021 is fixedly connected to a first gear 2022, which is meshed with a second gear 2023, and the second gear 2023 is fixedly connected to a connecting tube 2031. The first driving assembly 104 includes a fixed plate 1046, the fixed plate 1046 is fixedly connected to the inner wall of the etching device 101, and two fixed blocks 1042 are fixedly connected to the fixed plate 1046, a first motor 1041 is fixedly installed on one of the fixed blocks 1042, an output shaft of the first motor 1041 is fixedly connected to a rotating shaft 1044, the rotating shaft 1044 is rotatably connected to the two fixed blocks 1042 through two bearings, and a plurality of worms 1043 and a plurality of cams 1045 are fixedly connected to the rotating shaft 1044; The adjustable conveying assembly 103 includes a plurality of polygonal rods 1033, both ends of which are rotatably connected to a fixed plate 1046 and a support plate 1038 through bearings, the support plate 1038 is fixedly connected to the inner wall of the etching device 101, a polygonal tube 1031 is sleeved on the polygonal rods 1033, and the plurality of polygonal tubes 1031 are rotatably connected to a connecting plate 1034 through bearings, a plurality of pulleys 1035 are fixedly connected above the connecting plate 1034, and the pulleys 1035 correspond to the positions of the cam 1045, a plurality of conveying wheels 1036 are also fixedly connected to the polygonal tube 1031, one end of the polygonal tube 1031 is fixedly connected to a first spring 1037, and the first spring 1037 is fixedly connected to the support plate 1038.

[0027] In this embodiment: the first motor 1041 drives the first rotating shaft 1044 to rotate, so that the cam 1045 rotates and cooperates with the first spring 1037 to drive the polygonal cylinder 1031 to achieve reciprocating motion, so that the conveying wheel 1036 drives the circuit board to reciprocate, and at the same time the second motor 2021 drives the first gear 2022 and the second gear 2023 to transmit, so that the connecting tube 2031 and the turntable 206 rotate, so that the nozzle 2033 performs centrifugal cleaning operations to increase the liquid flow area, and at the same time the roller 2054 moves on the wave surface of the annular plate 204, and cooperates with the second spring 2052 to realize the reciprocating transmission of the tooth plate 2051 and the gear, so that the nozzle 2033 swings to perform spraying operations at different angles, thereby improving the flushing effect of the liquid, and the conveying wheel 1036 swings the circuit board, thereby further reducing the adhesion of the etching liquid and the residual liquid, improving the cleaning effect and facilitating the dewatering operation.

[0028] A method for using a PCB circuit board spray etcher comprises the following steps: S1. When spray etching is performed on a circuit board, the etching device 101 operates the first motor 1041 to drive the rotating shaft 1044 to rotate, and the rotating shaft 1044 drives the worm 1043 to rotate. The worm 1043 and the worm wheel 1032 drive each other, so that the worm wheel 1032 drives the polygonal cylinder 1031 to rotate, and the polygonal cylinder 1031 drives the conveying wheel 1036 to rotate, so that the conveying wheel 1036 conveys the circuit board to the etching device 101. At this time, the conveying pump 1021 conveys the etching liquid into the conveying pipe 1024, and sprays the etching liquid through the flow equalizing shell 1022 and the spray head 1023, so that the etching liquid is sprayed onto the circuit board; S2. When the rotating shaft 1044 rotates, the rotating shaft 1044 also drives the cam 1045 to rotate. The cam 1045 squeezes the pulley 1035, so that the pulley 1035 drives the connecting plate 1034 and the polygonal tube 1031 to slide and translate. The polygonal tube 1031 drives the first spring 1037 to deform. When the convex surface of the cam 1045 moves away from the pulley 1035, the first spring 1037 drives the polygonal tube 1031 to reset. The cam 1045 cooperates with the first spring 1037 to keep the polygonal tube 1031 to reciprocate, so that the conveying wheel 1036 drives the circuit board to reciprocate, so as to keep the etching liquid sprayed on the circuit board evenly. S3. After the etching operation of the circuit board is completed, liquid is extracted through the water pump 2011, and the liquid is transported through the connecting pipe 2031 and the first hose 2032, and the liquid is sprayed out through the nozzle 2033, so that the liquid is sprayed onto the circuit board for cleaning, and the second motor 2021 also drives the first gear 2022 and the second gear 2023 to transmit, and the second gear 2023 drives the connecting pipe 2031 and the turntable 206 to rotate, so that the nozzle 2033 rotates to clean the circuit board, and at the same time, the tooth plate 2051 rotates with the turntable 206, so that the roller 2054 and the wave convex surface of the annular plate 204 are squeezed and moved, and at the same time, the second spring 2052 cooperates to make the tooth plate 2051 reciprocate, so that the tooth plate 2051 and the third gear 2055 transmit, so that the nozzle 2033 swings to achieve the operation of evenly cleaning the circuit board.

[0029] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PCB circuit board spray etching machine, comprising a spray etching mechanism (100), characterized in that: The spray etching mechanism (100) is equipped with a cleaning mechanism (200); The spray etching mechanism (100) comprises an etching device (101), wherein the etching device (101) is provided with a spray assembly (102) and an adjustable conveying assembly (103), wherein the adjustable conveying assembly (103) is located below the spray assembly (102), and the adjustable conveying assembly (103) is in transmission with a first driving assembly (104); The cleaning mechanism (200) comprises a water supply component (201), the water supply component (201) being in communication with a liquid outlet component (203), the liquid outlet component (203) being in transmission connection with a second drive component (202), and a plurality of nozzle adjustment components (205) being arranged below the liquid outlet component (203), the plurality of nozzle adjustment components (205) being arranged in a circular ring plate (204), and the circular ring plate (204) being fixedly connected to the top wall of the etching device (101).

2. A PCB circuit board spray etching machine according to claim 1, characterized in that: The spray assembly (102) comprises a delivery pump (1021), wherein the delivery pump (1021) is fixedly installed above the etching device (101), wherein the inlet end of the delivery pump (1021) extends downward to the bottom of the etching device (101), and the outlet end of the delivery pump (1021) is connected to a delivery pipe (1024), wherein the delivery pipe (1024) passes through the etching device (101) and is connected to a flow-balancing shell (1022), and a plurality of spray heads (1023) are arranged below the flow-balancing shell (1022), and the plurality of spray heads (1023) are arranged at different angles.

3. A PCB circuit board spray etching machine according to claim 1, characterized in that: The water delivery component (201) comprises a water pump (2011), the water pump (2011) being fixedly mounted on the etching device (101), the water inlet of the water pump (2011) being connected to a water inlet pipe (2013), and the water outlet of the water pump (2011) being connected to a water outlet pipe (2012).

4. A PCB circuit board spray etching machine according to claim 3, characterized in that: The liquid outlet assembly (203) comprises a connecting pipe (2031), the connecting pipe (2031) being rotatably connected to the outside of the water outlet pipe (2012) via a bearing, the connecting pipe (2031) being connected to the water outlet pipe (2012), and the connecting pipe (2031) being rotatably connected to the etching device (101) via a bearing; A plurality of first hoses (2032) are connected below the connecting pipe (2031), the first hose (2032) is connected to one of the nozzles (2033), and every two nozzles (2033) are connected via a second hose (2034). A third gear (2055) is fixedly connected above the nozzles (2033), and the third gear (2055) is rotatably connected to two connecting blocks (2056) via a pin shaft. The connecting blocks (2056) are fixedly connected below the rotating disk (206), and the connecting pipe (2031) is installed on the rotating disk (206) through penetration.

5. A PCB circuit board spray etching machine according to claim 4, characterized in that: The nozzle adjustment assembly (205) comprises a tooth plate (2051), one end of the tooth plate (2051) is fixedly connected to a second spring (2052), the second spring (2052) is fixedly connected to the connecting pipe (2031), the tooth plate (2051) is slidably connected to a guide frame (2053), the guide frame (2053) is fixedly connected below the rotating disk (206), the other end of the tooth plate (2051) is fixedly connected to a roller (2054), the roller (2054) is in contact with the inner wall of the circular ring plate (204), and the inner wall of the circular ring plate (204) is in a wave shape.

6. A PCB circuit board spray etching machine according to claim 4, characterized in that: The second driving assembly (202) comprises a second motor (2021), the second motor (2021) is fixedly mounted on the etching device (101), the output shaft of the second motor (2021) is fixedly connected to a first gear (2022), the first gear (2022) is meshed with a second gear (2023), and the second gear (2023) is fixedly connected to a connecting tube (2031).

7. A PCB circuit board spray etching machine according to claim 1, characterized in that: The first driving component (104) comprises a fixed plate (1046), the fixed plate (1046) being fixedly connected to the inner wall of the etching device (101), the fixed plate (1046) being fixedly connected to two fixed blocks (1042), one of the fixed blocks (1042) being fixedly mounted with a first motor (1041), the output shaft of the first motor (1041) being fixedly connected to a rotating shaft (1044), the rotating shaft (1044) being rotatably connected to the two fixed blocks (1042) via two bearings, and a plurality of worms (1043) and a plurality of cams (1045) being fixedly connected to the rotating shaft (1044).

8. A PCB circuit board spray etching machine according to claim 7, characterized in that: The adjustable conveying assembly (103) comprises a plurality of polygonal rods (1033), both ends of the plurality of polygonal rods (1033) are rotatably connected to a fixed plate (1046) and a support plate (1038) via bearings, the support plate (1038) is fixedly connected to the inner wall of the etching device (101), a polygonal tube (1031) is sleeved on the polygonal rods (1033), the plurality of polygonal tubes (1031) are rotatably connected to a connecting plate (1034) via bearings, a worm wheel (1032) is fixedly connected to the polygonal tube (1031), and the worm wheel (1032) is meshed with the worm (1043).

9. A PCB circuit board spray etching machine according to claim 8, characterized in that: A plurality of pulleys (1035) are fixedly connected above the connecting plate (1034), the pulleys (1035) correspond in position to the cams (1045), and a plurality of conveying wheels (1036) are also fixedly connected to the polygonal cylinder (1031); One end of the polygonal tube (1031) is fixedly connected to a first spring (1037), and the first spring (1037) is fixedly connected to a support plate (1038).

10. A method for using a PCB circuit board spray etcher according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. When spray etching is performed on a circuit board, the etching device (101) operates a first motor (1041) to drive the rotating shaft (1044) to rotate, the rotating shaft (1044) drives the worm (1043) to rotate, the worm (1043) and the worm wheel (1032) are driven, so that the worm wheel (1032) drives the polygonal cylinder (1031) to rotate, the polygonal cylinder (1031) drives the conveying wheel (1036) to rotate, so that the conveying wheel (1036) conveys the circuit board to the etching device (101), and at this time, the conveying pump (1021) conveys the etching liquid into the conveying pipe (1024), and sprays the etching liquid through the flow-distributing shell (1022) and the spray head (1023), so that the etching liquid is sprayed onto the circuit board; S2. When the rotating shaft (1044) rotates, the rotating shaft (1044) also drives the cam (1045) to rotate. The cam (1045) squeezes the pulley (1035), so that the pulley (1035) drives the connecting plate (1034) and the polygonal tube (1031) to slide and translate. The polygonal tube (1031) drives the first spring (1037) to deform. When the convex surface of the cam (1045) moves away from the pulley (1035), the first spring (1037) drives the polygonal tube (1031) to reset. The cam (1045) cooperates with the first spring (1037) to keep the polygonal tube (1031) in reciprocating motion, so that the conveying wheel (1036) drives the circuit board to reciprocate, thereby keeping the etching liquid sprayed evenly on the circuit board; S3. After the etching operation of the circuit board is completed, the liquid is extracted by the water pump (2011), and the liquid is transported through the connecting tube (2031) and the first hose (2032), and the liquid is sprayed out through the nozzle (2033), so that the liquid is sprayed onto the circuit board for cleaning, and the second motor (2021) also drives the first gear (222) and the second gear (223) to transmit, and the second gear (223) drives the connecting tube (2031) and the turntable (206) rotates, causing the nozzle (2033) to rotate to clean the circuit board, and at the same time, the toothed plate (2051) rotates along with the turntable (206), causing the roller (2054) and the wave convex surface of the annular plate (204) to squeeze and move, and at the same time, the second spring (2052) cooperates to make the toothed plate (2051) reciprocate, causing the toothed plate (2051) to transmit to the third gear (2055), thereby causing the nozzle (2033) to swing to achieve an operation of evenly cleaning the circuit board.

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