A lead frame washing device based on multi-dimensional perception

Abstract

The present invention proposes a lead frame washing device based on multi-dimensional perception, which belongs to the field of lead frame production technology and includes: a washing box, wherein the interior of the washing box is respectively provided with a detection chamber, a washing chamber, and a drying chamber, wherein the detection chamber, the washing chamber, and the drying chamber are adjacently connected to each other in sequence, and a bottom guide frame passes through the detection chamber, the washing chamber, and the drying chamber. The interior of the washing box above the bottom guide frame is evenly installed with relatively arranged electric guide rollers, and industrial cameras are provided at the center of both sides of the interior of the detection chamber. The present invention uses the industrial camera, the control device, and the telescopic cylinder B to accurately locate lead frame stains, adjust parameters such as the nozzle cleaning angle to prevent lead frame deformation, utilize an online detection mechanism for real-time monitoring, accurately control the water pressure according to the stain condition, and link components such as the scratch brush plate to achieve multi-mode dynamic cleaning of water foam, water column, and scratches, saving water and reducing losses, and achieving intelligent, efficient, and precise washing processes.

Description

Technical Field

[0001] The present invention relates to the technical field of lead frame production, and in particular to a lead frame washing device based on multi-dimensional perception. Background Art

[0002] In the production process of integrated circuit components, the IC lead frame plays an important role in supporting the IC chip. It provides the IC chip with a base and welding leads, i.e., pins. Before the lead frame is packaged, a water washing device is generally required to thoroughly clean the welding residues and metal debris on the lead frame surface.

[0003] Chinese patent authorization publication CN222020188U discloses a lead frame washing device, comprising a turntable rotatably connected to a first rotating shaft. A first motor is fixedly connected to the bottom end of the turntable, and an output end of the first motor is drivingly connected to the bottom end of the first rotating shaft. The turntable is driven by the first motor to rotate, and water is sprayed from a nozzle by a water pump to perform a secondary rinse on the lead frame. The entire lead frame washing operation is performed in a water washing tank, effectively preventing splashing of the washing water. The secondary rinse improves the cleanliness of the lead frame.

[0004] The above-mentioned existing technical solutions have the following shortcomings: since the distribution of welding residues and other stains on the surface of the lead frame varies depending on the position of the pins, and the device mainly uses immersion and lateral spraying of a single nozzle to synchronously wash the surface of the lead frame, since it is not easy to focus on washing according to the different positions and degrees of stains, it is easy to cause local stains to be not cleaned thoroughly or excessive cleaning of some areas causing wear on the lead frame surface, etc., so there is room for improvement. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the problem in the prior art that it is difficult to perform targeted cleaning according to the distribution of stains. The present invention proposes a lead frame washing device based on multi-dimensional perception.

[0006] To solve the above technical problems, the present invention adopts a technical solution: a lead frame washing device based on multi-dimensional perception, comprising: a washing box, wherein a detection chamber, a washing chamber, and a drying chamber are respectively provided inside the washing box, the detection chamber, the washing chamber, and the drying chamber are adjacently connected to each other in sequence, a bottom guide frame passes through the detection chamber, the washing chamber, and the drying chamber, the washing chamber are evenly installed with oppositely arranged electric guide rollers inside the washing box above the bottom guide frame, industrial cameras are provided at the centers of both sides of the detection chamber, an online detection mechanism is provided inside the washing chamber, the online detection mechanism is located between the electric guide roller and the bottom guide frame, precision spray mechanisms are provided on the inner walls of the washing chamber on both sides of the online detection mechanism, drying rods are evenly provided on both sides of the drying chamber, an air filter is connected to the outside of the drying chamber, a control device is provided on one side of the washing box, a main processing module is provided inside the control device, one end of the main processing module is signal-connected to a coordinate establishment module, one end of the coordinate establishment module is signal-connected to an area measurement module, one end of the area measurement module is connected to an intensity comparison module, and one end of the intensity comparison module is signal-connected to the electric guide roller;

[0007] The precision spraying mechanism includes a four-way pipe fixed on the inner wall of the water washing chamber. The water outlet ends of the four-way pipe are equipped with flow control valves and are connected to hoses respectively. A nozzle is provided at one end of the hose. A fixed sleeve is fixed to the outside of the nozzle. Guide frames are fixed at equal distances on the inner wall of the detection chamber. The outer side of the top of the nozzle is inserted into the inside of the guide frame for sliding. A telescopic cylinder B is installed on the side of the fixed sleeve close to the four-way pipe. One end of the telescopic cylinder B is fixed to the inner wall of the detection chamber, and one end of the telescopic cylinder B is connected to the coordinate establishment module signal.

[0008] Preferably, the nozzle includes a rear tube fixed at one end of the hose, an air inlet head passes through one side of the rear tube, the front end of the rear tube is rotatably connected to a rotating head, the outer side of the rotating head is equidistantly rotatably connected to a rotating tube, the front end of the rotating tube is commonly connected to an angle adjustment assembly, and the inner side of the angle adjustment assembly is fixedly connected to the front end center of the rotating head.

[0009] Preferably, the rear tube includes a main body, the water inlet end of the main body is connected to an inner tube, one end of the inner tube extends to the interior of the main body, a guide plate is connected between the inner tube and the inner cavity of the main body, and openings are equidistantly provided at the front end of the inner tube. The air inlet head is located between the water inlet of the main body and the guide plate. The rotating tube includes a ball head embedded in the inner side of the rotating head, the ball head is rotatably connected to the inner wall of the rotating head, one end of the ball head is connected to a rotating rod, and nozzles are equidistantly arranged on one side of the rotating rod. The angle adjustment assembly includes a telescopic cylinder C fixed at the center of the front end of the rotating head, the telescopic cylinder C is signal-connected to the area measurement module, a movable head is fixed at the front end of the telescopic cylinder C, and a plurality of hinged plates are rotatably connected to the outer side of the movable head, and one end of the hinged plate is rotatably connected to one side of an adjacent rotating rod.

[0010] Preferably, three nozzles are provided on the rotating rod, the three nozzles are in the same plane, and the angle between the plane and the rotating rod is 30°, and the spray angles of the three nozzles gradually expand outward from the inside to the outside.

[0011] Preferably, the online detection mechanism includes a sliding frame slidably mounted on the top of the electric guide roller located inside the washing chamber, a telescopic cylinder A is installed on one side of the sliding frame, one end of the telescopic cylinder A is fixed to one side of the top of the electric guide roller, pressure detection components are fixed on both sides of the bottom end of the sliding frame, and the pressure detection components are connected to the flow control valve signal; the pressure detection component includes a detection plate, a plurality of probes are equidistantly slid through the inner side of the detection plate, a spring A is connected between the inner end of the probe and the inner wall of the detection plate, pressure sensors are fixed on the inner wall of the detection plate relative to the probe, and elastic rods are fixed to the inner ends of the probes. In the initial state, the elastic rods and the pressure sensors are in contact but apply extrusion force, the number of pressure sensors is a multiple of three, and the flow control valve and adjacent pressure sensors are signal connected.

[0012] Preferably, one side of the pressure detection component is rotatably connected to a scratch brush plate, which is located on the inlet side of the lead frame in the water washing chamber. A flip assembly is provided at the top of the scratch brush plate, and the flip assembly includes a telescopic reset plate fixed on the top of the scratch brush plate close to the side of the electric guide roller, and a guide cross plate is fixed to the outer side of the electric guide roller next to the telescopic reset plate. The side of the telescopic reset plate close to the guide cross plate is an inclined surface. When the pressure detection component moves horizontally, the telescopic reset plate and the guide cross plate alternately contact and separate in turn.

[0013] Preferably, a circulation mechanism is provided at the bottom end of the washing chamber, and the circulation mechanism includes a water tank fixed at the bottom end of the washing chamber, a water flow filter is provided inside the water tank, a collecting tank is fixed at the top end of the water tank, the bottom end of the collecting tank is connected to the top end of the water flow filter, a water pump is fixed at the bottom end of the drying chamber, a water adding valve pipe is connected between the water inlet end of the water pump and the water outlet end of the water tank, the water outlet end of the water pump is connected to a diversion pipe, both water outlet ends of the diversion pipe are connected to heat exchange coils, the heat exchange coils are fixed between adjacent drying rods and the inner wall of the drying chamber, the water outlet ends of the heat exchange coils are fixedly connected to one end of the adjacent four-way pipes, a return channel is fixed directly below the bottom guide frame inside the drying chamber, and one side of the return channel and the collecting tank are connected to each other.

[0014] Preferably, a dehumidification mechanism is provided at the top of the drying chamber, and the dehumidification mechanism includes an exhaust pipe, a bulb is provided at one end of the exhaust pipe, the top of the bulb is connected to an exhaust pipe, the top of the exhaust pipe extends to the outside of the water washing box, and a circulation component is provided at the bottom of the bulb. An automatic switching mechanism is provided throughout the interior of the bulb, and the circulation component includes a circulating air pipe connected to the bottom of the bulb, both sides of the circulating air pipe are connected to air distribution pipes, one end of the air distribution pipes passes through the interior of the water washing chamber, one end of the air distribution pipes is evenly connected to a one-way pipe, and one end of the one-way pipe is connected to one end of an adjacent air inlet head.

[0015] Preferably, the automatic switching mechanism includes a connecting rod passing through one side of the ball tube, a ball valve is fixed to one end of the connecting rod, an L-shaped channel is opened inside the ball valve, the other end of the connecting rod passes through the interior of the water washing chamber, one end of the connecting rod is connected to the top of the electric guide roller through the bearing seat, and a rotation guide assembly and a reset assembly are respectively provided on the outside of the connecting rod.

[0016] Preferably, the rotating guide assembly includes a special-shaped guide groove provided on the outside of the connecting rod, one side of the sliding frame below the special-shaped guide groove is rotatably connected to a rotating guide rod, the top of the rotating guide rod extends into the interior of the special-shaped guide groove, one side of the rotating guide rod is connected to a spring B, one end of the spring B is fixedly connected to the side wall of the sliding frame, and the rotating guide rod drives the connecting rod to rotate 180° when the sliding frame moves left and right, and the reset assembly includes an active magnetic plate fixed on the outside of the connecting rod, a fixed ring is fixed on the outside of the ball tube outside the active magnetic plate, a spring C is connected between the inner side wall of the fixed ring and the active magnetic plate, a magnetic block is fixed to the inner side wall of the fixed ring near the spring C, and the magnetic block and the active magnetic plate are magnetically fixed.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Through the signal connection and coordination between the industrial camera, the control device and the telescopic cylinder B, etc., the distribution area and area of ​​the stains on the surface of the lead frame can be accurately positioned, so as to accurately control the spray angle and cleaning time of the nozzle, avoid excessive cleaning of the lead frame surface, and reduce the deformation of the lead frame. At the same time, the online detection mechanism is used to realize real-time online detection during the cleaning process, so as to further accurately control the water pressure according to the stubbornness of the stains and realize efficient cleaning of the stains. Under the multi-dimensional detection and identification, the water washing process is made intelligent, efficient and precise. At the same time, according to the joint action of the scratch brush plate, the flip component and the automatic switching mechanism, the dynamic control of the cleaning mode is realized. The synergistic effect of multiple modes such as water foam, water column and scratch is used to reduce the water consumption of a single spray, reduce the stamping effect on the lead frame surface, and effectively avoid the deformation of the lead frame during washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0020] Figure 1 Schematically shows a cross-sectional three-dimensional structural diagram proposed according to one embodiment of the present invention;

[0021] Figure 2 Schematically shows a schematic diagram of a main cross-sectional structure proposed according to an embodiment of the present invention;

[0022] Figure 3 Schematically shows a three-dimensional structural diagram of a precision spraying mechanism proposed according to one embodiment of the present invention;

[0023] Figure 4 Schematically shows a schematic diagram of the three-dimensional structure of a circulation component proposed according to one embodiment of the present invention;

[0024] Figure 5 Schematically shows a schematic diagram of the three-dimensional structure of a nozzle proposed according to one embodiment of the present invention;

[0025] Figure 6 Schematically shows a schematic diagram of a top perspective structure of a rear tube proposed according to one embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the three-dimensional structure of a rotating tube according to one embodiment of the present invention is shown;

[0027] Figure 8 Schematically shows a three-dimensional structural diagram of an online detection mechanism proposed according to one embodiment of the present invention;

[0028] Figure 9 A schematic diagram of the three-dimensional structure of a flip assembly proposed according to one embodiment of the present invention is shown;

[0029] Figure 10 Schematically shows a schematic diagram of the front perspective structure of a pressure detection assembly proposed in one embodiment of the present invention;

[0030] Figure 11 A schematic diagram of the three-dimensional structure of an automatic switching mechanism proposed according to one embodiment of the present invention is shown;

[0031] Figure 12 Schematically shows a method according to an embodiment of the present invention. Figure 9 Schematic diagram of the structure at A in the middle;

[0032] Figure 13Schematically shows a schematic diagram of the three-dimensional structure of a reset assembly proposed according to one embodiment of the present invention;

[0033] Figure 14 Schematically shows a schematic diagram of the structure of a lead frame contamination coordinate model proposed according to one embodiment of the present invention;

[0034] Figure 15 The figure schematically shows a program block diagram of a main processing module proposed according to one embodiment of the present invention.

[0035] Numbers in the figure: 1, water washing box; 2, detection chamber; 3, water washing chamber; 4, drying chamber; 5, bottom guide frame; 6, industrial camera; 7, electric guide roller;

[0036] 8. Online detection mechanism; 81. Sliding frame; 82. Telescopic cylinder A; 83. Pressure detection assembly; 831. Detection plate; 832. Probe; 833. Spring A; 834. Pressure sensor; 835. Elastic rod; 84. Scratch brush plate; 85. Flip assembly; 851. Telescopic reset plate; 852. Guide cross plate;

[0037] 9. Precision spray mechanism; 91. Cross-section pipe; 92. Flow control valve; 93. Hose; 94. Fixed sleeve; 95. Sprinkler; 951. Rear pipe; 9511. Main body; 9512. Inner pipe; 9513. Guide vane; 9514. Opening; 952. Rotating head; 953. Inlet head; 954. Rotating pipe; 9541. Rotating rod; 9542. Nozzle; 9543. Ball head; 955. Angle adjustment assembly; 9551. Telescopic cylinder C; 9552. Movable head; 9553. Hinge plate; 96. Guide frame; 97. Telescopic cylinder B;

[0038] 10. Circulation mechanism; 101. Water tank; 102. Collection tank; 103. Water filling valve pipe; 104. Water pump; 105. Diverter pipe; 106. Heat exchange coil; 107. Water flow filter; 108. Return channel; 11. Drying rod;

[0039] 12. Dehumidification mechanism; 121. Exhaust pipe; 122. Ball pipe; 123. Exhaust pipe; 124. Circulation assembly; 1241. Air distribution pipe; 1242. One-way pipe; 1243. Circulation pipe; 125. Automatic switching mechanism; 1251. Ball valve; 1252. L-shaped channel; 1253. Connecting rod; 1254. Rotation guide assembly; 12541. Special-shaped guide groove; 12542. Rotation guide rod; 12543. Spring B; 1255. Reset assembly; 12551. Movable magnetic plate; 12552. Retaining ring; 12553. Spring C; 12554. Magnetic block; 13. Air filter;

[0040] 14. Control device; 141. Main processing module; 142. Coordinate establishment module; 143. Area measurement module; 144. Intensity comparison module. DETAILED DESCRIPTION

[0041] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0042] In order to solve the problem in the prior art that it is difficult to perform targeted cleaning according to the distribution of stains, the following solution is disclosed. Figures 1-10 、 Figure 14 、 Figure 15 As shown:

[0043] A lead frame washing device based on multi-dimensional perception includes: a washing box 1, wherein the interior of the washing box 1 is respectively provided with a detection chamber 2, a washing chamber 3, and a drying chamber 4, wherein the detection chamber 2, the washing chamber 3, and the drying chamber 4 are adjacently connected in sequence, and a bottom guide frame 5 is passed through the detection chamber 2, the washing chamber 3, and the drying chamber 4. The interior of the washing box 1 above the bottom guide frame 5 is evenly installed with relatively arranged electric guide rollers 7, industrial cameras 6 are arranged at the centers of both sides of the interior of the detection chamber 2, and an online detection mechanism 8 is arranged inside the washing chamber 3. The online detection mechanism 8 is located between the electric guide roller 7 and the bottom guide frame 5. The inner walls of the washing chamber 3 on both sides of the mechanism 8 are provided with precision spraying mechanisms 9, and drying rods 11 are evenly provided on both side walls of the drying chamber 4. The outside of the drying chamber 4 is connected to an air filter 13, and a control device 14 is provided on one side of the washing box 1. A main processing module 141 is provided inside the control device 14, and one end of the main processing module 141 is connected to a coordinate establishment module 142 by signal, and one end of the coordinate establishment module 142 is connected to an area measurement module 143 by signal, and one end of the area measurement module 143 is connected to an intensity comparison module 144, and one end of the intensity comparison module 144 is connected to the electric guide roller 7 by signal;

[0044] The precision spray mechanism 9 includes a four-way pipe 91 fixed on the inner wall of the water washing chamber 3. The water outlet ends of the four-way pipe 91 are installed with flow control valves 92 and are respectively connected to hoses 93. One end of the hose 93 is provided with a nozzle 95. The outside of the nozzle 95 is fixed with a fixed sleeve 94. The inner wall of the detection chamber 2 is equidistantly fixed with a guide frame 96. The outer side of the top of the nozzle 95 is inserted into the inside of the guide frame 96 for sliding. A telescopic cylinder B97 is installed on the side of the fixed sleeve 94 close to the four-way pipe 91. One end of the telescopic cylinder B97 is fixed to the inner wall of the detection chamber 2, and one end of the telescopic cylinder B97 is connected to the coordinate establishment module 142 for signal connection.

[0045] The online detection mechanism 8 includes a sliding frame 81 slidably mounted on the top of the electric guide roller 7 located inside the washing chamber 3. A telescopic cylinder A82 is installed on one side of the sliding frame 81. One end of the telescopic cylinder A82 is fixed to one side of the top of the electric guide roller 7. Pressure detection components 83 are fixed on both sides of the bottom end of the sliding frame 81. The pressure detection component 83 is connected to the flow control valve 92 for signal communication.

[0046] Specifically, such as Figure 1-Figure 5 As shown, with the cooperation of the bottom guide frame 5 and the electric guide roller 7, the lead frame is intermittently advanced longitudinally and horizontally, thereby achieving a double-sided synchronous cleaning effect on the lead frame. The industrial camera 6 and the main processing module 141 are used to identify and analyze the lead frames passing through the electric guide roller 7 during the equidistant transmission process, as shown in FIG. Figure 14 From the perspective of the lead frame's movement direction, the coordinate system is used to locate the stains on the lead frame surface within the identification area, thereby accurately controlling the X-axis extension length of the telescopic cylinder B97 at the corresponding position in the corresponding Y-axis area, thereby ensuring that the spraying position of the nozzle 95 corresponds to the stain distribution position. The type of stain currently attached to the lead frame surface is determined based on the stain's color and surface texture. At the same time, the area measurement module 143 is used to distribute the size of the stain under the establishment of the coordinate system. By comparing the stain content in different position areas under the same lead frame, the time interval of the electric guide roller 7 pulling the lead frame is controlled. That is, the cleaning time of different left and right partitions of the lead frame is controlled according to different stain conditions, thereby performing targeted cleaning on strong stains, reducing water waste and avoiding over-cleaning of local areas of the lead frame. At the same time, the pressure detection effect of the pressure detection component 83 is used to judge the adhesion strength of the stains to the lead frame during the cleaning process, thereby adjusting the hose 93 and controlling the water jet pressure to spray high pressure on strong stains and soft spray on weak stains, thereby reducing impact damage to the lead frame. The multi-dimensional perception effects of vision and touch are utilized to make the cleaning process more intelligent, efficient and accurate.

[0047] The nozzle 95 includes a rear tube 951 fixed to one end of the hose 93. An air inlet head 953 penetrates one side of the rear tube 951. The front end of the rear tube 951 is rotatably connected to a rotating head 952. The outer side of the rotating head 952 is equidistantly rotatably connected to a rotating tube 954. The front end of the rotating tube 954 is commonly connected to an angle adjustment component 955. The inner side of the angle adjustment component 955 is fixedly connected to the front center of the rotating head 952.

[0048] Specifically, such as Figure 5-Figure 7 As shown, conventional technical means or easily conceivable methods are to adjust and control the connection end of the rear tube 951 and the hose 93 through an adjustment component. This method easily causes the direction adjustment range of the spray end of the nozzle 95 to be too large, thereby failing to perform precise adjustment of the fixed point according to the distribution of the stains. By providing an angle adjustment component 955 at the front end of the rear tube 951, the adjustment angle of the rotating tube 954 can be more accurately controlled. At the same time, the reaction force of the water jet is used to make the rotating tube 954 rotate, thereby making the spray range and angle more comprehensive.

[0049] The rear tube 951 includes a main body 9511, the water inlet end of the main body 9511 is connected to the inner tube 9512, one end of the inner tube 9512 extends to the interior of the main body 9511, a guide plate 9513 is connected between the inner tube 9512 and the inner cavity of the main body 9511, and the front end of the inner tube 9512 is equidistantly provided with openings 9514. The air inlet head 953 is located between the water inlet of the main body 9511 and the guide plate 9513. The rotating tube 954 includes a ball head 9543 embedded in the inner side of the rotating head 952. The ball head 9543 and the inner wall of the rotating head 952 rotate One end of the ball head 9543 is connected to a rotating rod 9541, and nozzles 9542 are equidistantly arranged on one side of the rotating rod 9541. The angle adjustment assembly 955 includes a telescopic cylinder C9551 fixed to the front center of the rotating head 952. The telescopic cylinder C9551 is signal-connected to the area measurement module 143. A movable head 9552 is fixed to the front end of the telescopic cylinder C9551. The outer side of the movable head 9552 is rotatably connected to multiple hinged plates 9553. One end of the hinged plate 9553 is rotatably connected to one side of an adjacent rotating rod 9541.

[0050] Specifically, such as Figure 6 、 Figure 7As shown, conventional technical means or easily conceivable ones are to use pressurized water jetting to directly rinse the stains on the lead frame. However, due to the variety of stains on the lead frame surface and the strong adhesion of some stains to the lead frame, the direct rinsing method requires the rinsing pressure to reach a certain level. Overpressure can easily cause impact and deformation on the lead frame. By cooperating with the main body 9511 and the air inlet head 953, an air mixing chamber is introduced into the main body 9511, thereby increasing the air content in the water flow before the water flow is sprayed, so that the sprayed water column carries bubbles. The adhesion of the bubbles to the surface of the lead frame is used to increase the contact reaction time between the cleaning agent in the water flow and the lead frame, and at the same time achieve a certain soaking effect to soften the stains and increase the impact and removal of the stains, thereby reducing excessive water pressure and preventing deformation of the lead frame during rinsing.

[0051] Three nozzles 9542 are provided on the rotating rod 9541. The three nozzles 9542 are located in the same plane, and the angle between the plane and the rotating rod 9541 is 30 degrees. The spray angles of the three nozzles 9542 gradually expand outward from the inside to the outside.

[0052] Specifically, such as Figure 7 As shown, conventional technical means or easily conceivable is to use nozzles 9542 distributed with the same specifications to guide the water flow, but this method makes the angle between the sprayed water flow and the lead frame fixed. By using nozzles 9542 with different spray angles, the water flow acts at different angles on the lead frame, thereby achieving an impact effect on stains at multiple angles to improve the stain removal effect. At the same time, after adjusting the angle adjustment component 955, various adjustment effects of the spray range and the spray angle are simultaneously achieved;

[0053] The pressure detection assembly 83 includes a detection plate 831. Multiple probes 832 are slidably inserted into the inner side of the detection plate 831 at equal intervals. A spring A833 is connected between the inner end of each probe 832 and the inner wall of the detection plate 831. Pressure sensors 834 are fixed to the inner wall of the detection plate 831 opposite the probes 832. Elastic rods 835 are fixed to the inner ends of each probe 832. In the initial state, the elastic rods 835 and the pressure sensors 834 are in contact but exert a squeezing force. The number of pressure sensors 834 is a multiple of three. The flow control valve 92 is connected to adjacent pressure sensors 834 for signal communication.

[0054] Specifically, such as Figures 8-10 As shown, conventional technical means or easily conceivable is to use a fixed pressure detection component 83 to detect the surface of the lead frame after cleaning, but this method cannot achieve dynamic observation of the stain situation during the cleaning process. By using the cooperation of the telescopic cylinder A82, the pressure detection component 83 can perform real-time inspection of the lead frame during the cleaning process, and cooperate with the flow control valve 92 to adjust the water pressure in time, thereby reducing water waste;

[0055] One side of the pressure detection component 83 is rotatably connected to a scratching brush plate 84, which is located on the lead-in side of the lead frame in the water washing chamber 3. A flip assembly 85 is provided on the top of the scratching brush plate 84. The flip assembly 85 includes a telescopic reset plate 851 fixed to the top of the scratching brush plate 84 near the side of the electric guide roller 7. A guide transverse plate 852 is fixed to the outer side of the electric guide roller 7 next to the telescopic reset plate 851. The side of the telescopic reset plate 851 close to the guide transverse plate 852 is an inclined surface. When the pressure detection component 83 moves horizontally, the telescopic reset plate 851 and the guide transverse plate 852 alternately contact and separate in turn.

[0056] Specifically, such as Figure 9 As shown, conventional technical means or what is easy to think of is to use the movement of the pressure detection component 83 to make the scratch brush plate 84 move synchronously, so as to scratch and clean the stains on the lead frame, but this method easily causes the stains to remain on the surface of the scratch brush plate 84 and cause accumulation. By using the flip component 85, the scratch brush plate 84 is flipped after the scratching is completed, so that the water flow can be sprayed onto the scratch surface of the scratch brush plate 84 to synchronously rinse the stains.

[0057] Working Principle: In this embodiment, when in use, the lead frame is placed longitudinally on the bottom guide frame 5, with the top end of the lead frame positioned between the left and right sets of electric guide rollers 7. The electric guide rollers 7 are activated, causing the lead frame to intermittently advance. While the lead frame is resting within the inspection chamber 2, the inspection chamber 2 is activated to illuminate and identify both sides of the lead frame. The main processing module 141 locates the stain points on the lead frame within the identification area, and the relevant data information is displayed and located using the coordinate establishment module 142. The total area occupied by the stains on the lead frame is then calculated and compared to determine the washing time for the remaining areas on the lead frame, thereby controlling the intermittent movement time interval of the electric guide rollers 7.

[0058] When the lead frame moves to the cleaning area in the water washing chamber 3, the coordinate establishment module 142 controls the telescopic cylinder B97 to extend or contract, causing the spray head 95 to move to the corresponding five groups of areas. Simultaneously, the area measurement module 143 controls the telescopic cylinder C9551 to perform telescopic adjustment, causing the hinged plate 9553 to pull the rotating tube 954 inward or outward, thereby controlling and adjusting the overall spraying range of the rotating tube 954.

[0059] The water flow is transmitted to the flow control valve 92 through the four-way pipe 91, and then passes through the main body 9511 and the inner tube 9512 in sequence to enter the rotating head 952, and is sprayed outward from the nozzle 9542 through the rotating rod 9541. Since the nozzles 9542 are distributed obliquely on the rotating rod 9541, the sprayed water and the lead frame form a counter-propulsion force, thereby enabling the rotating tube 954 to drive the rotating head 952 to rotate, so that the spraying area can fully cover the stains. At the same time, due to the different degrees of inclination of the nozzles 9542, the stains are impacted by the water flow in different directions, thereby promoting the removal of the stains and achieving a precise stain removal effect.

[0060] During the cleaning process, the telescopic cylinder A82 is synchronously started to telescope, thereby driving the pressure detection component 83 to move laterally along the cleaning area of ​​the lead frame, so that the probe 832 always contacts the outer surface of the lead frame. When the stains on the lead frame are stubborn or thick, the probe 832 will contact the stains and slide inward, causing the elastic rod 835 to exert an inward squeezing force on the pressure sensor 834. According to the squeezing force on the pressure sensor 834, the pressure sensor 834 of the corresponding layer controls the start of the flow control valve 92 in the adjacent area, so that the flow control valve 92 controls more water flow to be discharged, thereby increasing the spray water pressure and promoting the cleaning effect of stubborn stains. The back-and-forth movement of the pressure detection component 83 is used to perform real-time dynamic detection of stains on the lead frame during the cleaning process, thereby reducing the waste of overpressure of the water flow. In conjunction with the visual detection of the industrial camera 6, precise control and efficient response of cleaning are achieved from multiple dimensions.

[0061] When the telescopic cylinder A82 extends first, the pressure detection assembly 83 synchronously drives the scratch brush plate 84 to move, causing the telescopic reset plate 851 to move synchronously and contact the guide cross plate 852. Since the contact surface of the telescopic reset plate 851 with the guide cross plate 852 in the moving direction is an inclined surface at this time, the telescopic reset plate 851 is hindered from shortening downward, so that the scratch brush plate 84 maintains a close contact with the pressure detection assembly 83, and pushes the dirt on the lead frame in a one-way manner, and pushes the dirt toward the clean side of the lead frame.

[0062] When the telescopic cylinder A82 is shortened, the pressure detection component 83 drives the scratch brush plate 84 to reset. At this time, the telescopic reset plate 851 has moved to the outermost end and separated from the guide cross plate 852. Therefore, the telescopic reset plate 851 rises and stretches to reset. Under the reset movement of the pressure detection component 83, the telescopic reset plate 851 moves back and re-contacts the guide cross plate 852. Since the contact surface at this time is a vertical surface, the telescopic reset plate 851 is hindered and drives the scratch brush plate 84 to flip outward, so that the scratch surface at the bottom end of the scratch brush plate 84 flips outward away from the lead frame, and then during the movement, the spray water flow of the nozzle 95 synchronously flushes the scratch brush plate 84 until the telescopic reset plate 851 and the guide cross plate 852 are separated, and the scratch brush plate 84 is reset to the joint of the pressure detection component 83. When cleaning is completed, the lead frame continues to move into the drying chamber 4 and is dried under the action of the drying rod 11.

[0063] In order to further realize the green sustainability of the water washing equipment, the clean water flow is dried and steam is recycled. Therefore, the following scheme is disclosed. Figure 1 、 Figure 2 、 Figure 4 、 Figure 11-13 As shown:

[0064] A circulation mechanism 10 is provided at the bottom end of the washing chamber 3. The circulation mechanism 10 includes a water tank 101 fixed at the bottom end of the washing chamber 3. A water flow filter 107 is provided inside the water tank 101. A collection tank 102 is fixed at the top end of the water tank 101. The bottom end of the collection tank 102 is connected to the top end of the water flow filter 107. A water pump 104 is fixed at the bottom end of the drying chamber 4. A water filling valve pipe 10 is connected between the water inlet end of the water pump 104 and the water outlet end of the water tank 101. 3. The water outlet of the water pump 104 is connected to a diverter pipe 105. Both water outlet ends of the diverter pipe 105 are connected to heat exchange coils 106. The heat exchange coils 106 are fixed between adjacent drying rods 11 and the inner wall of the drying chamber 4. The water outlet ends of the heat exchange coils 106 are fixedly connected to one end of the adjacent cross-tube 91. A return channel 108 is fixed directly below the bottom guide frame 5 inside the drying chamber 4. One side of the return channel 108 is connected to the collection tank 102.

[0065] Specifically, such as Figure 2 As shown, the drying environment in the drying chamber 4 is utilized to allow the heat exchange coil 106 to perform a certain amount of heat exchange in the drying chamber 4, thereby increasing the temperature of the water sprayed by the nozzle 95. The high temperature promotes the molecular activity on the stains, thereby improving the cleaning effect. At the same time, the water supply valve pipe 103 can be used to replenish the cleaning water at any time.

[0066] A dehumidification mechanism 12 is provided at the top of the drying chamber 4. The dehumidification mechanism 12 includes an exhaust pipe 121, one end of the exhaust pipe 121 is provided with a bulb 122, the top of the bulb 122 is connected with an exhaust pipe 123, the top of the exhaust pipe 123 extends to the outside of the washing box 1, the bottom end of the bulb 122 is provided with a circulation component 124, the interior of the bulb 122 is penetrated by an automatic switching mechanism 125, the circulation component 124 includes a circulating air pipe 1243 connected to the bottom end of the bulb 122, both sides of the circulating air pipe 1243 are connected with air distribution pipes 1241, one end of the air distribution pipe 1241 passes through the interior of the washing chamber 3, one end of the air distribution pipe 1241 is evenly connected with a one-way pipe 1242, and one end of the one-way pipe 1242 is connected to one end of the adjacent air inlet head 953;

[0067] Specifically, such as Figure 4 、 Figure 13 As shown, conventional technical means or easily conceivable ones are to use a screw rod or gear to realize the rotation of the ball valve 1251. However, this method requires a preset time interval to realize the flip and reset of the ball valve 1251, which increases the control cost. By utilizing the reciprocating detection movement effect of the pressure detection component 83, the spray water flow of the nozzle 95 forms two modes under the action of gas penetration to work together, using water foam to increase the infiltration of the stains and using the water column to improve the flushing of the stains. The combination of the two can achieve efficient cleaning of the stains and the recycling of the drying hot air.

[0068] The automatic switching mechanism 125 includes a connecting rod 1253 that passes through one side of the ball tube 122. A ball valve 1251 is fixed to one end of the connecting rod 1253. An L-shaped channel 1252 is defined within the ball valve 1251. The other end of the connecting rod 1253 extends into the interior of the water washing chamber 3. One end of the connecting rod 1253 is connected to the top of the electric guide roller 7 via a bearing seat. A rotation guide assembly 1254 and a reset assembly 1255 are provided on the outer sides of the connecting rod 1253.

[0069] The rotation guide assembly 1254 includes a special-shaped guide groove 12541 provided on the outside of the connecting rod 1253. One side of the sliding frame 81 below the special-shaped guide groove 12541 is rotatably connected to a rotation guide rod 12542. The top end of the rotation guide rod 12542 penetrates into the interior of the special-shaped guide groove 12541. One side of the rotation guide rod 12542 is connected to a spring B12543. One end of the spring B12543 is fixedly connected to the side wall of the sliding frame 81. When the rotation guide rod 12542 moves left and right with the sliding frame 81, it will drive the connecting rod 1253 to rotate. The connecting rod 1253 rotates 180°. The reset assembly 1255 includes a movable magnetic plate 12551 fixed to the outside of the connecting rod 1253. A fixed ring 12552 is fixed to the outside of the ball tube 122 outside the movable magnetic plate 12551. A spring C12553 is connected between the inner side wall of the fixed ring 12552 and the movable magnetic plate 12551. A magnetic block 12554 is fixed to the inner side wall of the fixed ring 12552 near the spring C12553. The magnetic block 12554 and the movable magnetic plate 12551 are magnetically fixed.

[0070] Specifically, such as Figure 11-13 As shown, by utilizing the arc groove connecting the two straight grooves in the special-shaped guide groove 12541 and the special structure of the annular groove at the farthest end, the rotating guide rod 12542 can realize the flipping of the connecting rod 1253 only in a certain unidirectional movement stage during the reciprocating movement, and then automatically reset, so that the water foam spraying and water column spraying modes can be automatically alternated without affecting the moisture excretion ability of the drying chamber 4.

[0071] Working Principle: In this embodiment, when in use, the spray water from the nozzle 95 falls into the collection tank 102, enters the water filter 107 for filtration, and then starts the water pump 104, so that the filtered water flows through the water filling valve pipe 103 and enters the diversion pipe 105 for diversion. Then, it passes through the heat exchange coil 106, exchanges heat with the drying rod 11 and the hot air inside the drying chamber 4, so that the water in the heat exchange coil 106 is heated and sprayed out through the precision spray mechanism 9, using water at a certain temperature to enhance the cleaning ability of stains;

[0072] The exhaust pump inside the dehumidification mechanism 12 is started, so that the exhaust pipe 121 discharges the dried moisture in the drying chamber 4 into the exhaust pipe 123 through the L-shaped channel 1252 and is discharged outwardly. During the extension stage of the telescopic cylinder A82, the sliding frame 81 synchronously drives the rotating guide rod 12542 to move horizontally, so that the top end of the rotating guide rod 12542 slides inside the special-shaped guide groove 12541 and drives the connecting rod 1253 to rotate 180 degrees. At this time, due to the rotation of the connecting rod 1253, the L-shaped channel 1252 rotates synchronously, so that the steam in the exhaust pipe 121 passes through the circulating air pipe 1243 to the air distribution pipe 1241, and enters the rear pipe 951 along the one-way pipe 1242 and the air inlet head 953 to mix with the water flow. That is, during the detection stage of the unidirectional movement of the pressure detection component 83, the nozzle 95 sprays water foam, which uses the water foam to increase the infiltration effect of the stains on the lead frame and achieve the secondary utilization effect of the steam.

[0073] When the rotating guide rod 12542 moves to the annular groove at the farthest end of the special-shaped guide groove 12541, due to the elastic recovery ability of the spring C12553, the connecting rod 1253 is driven to rotate in the opposite direction and reset, so that the movable magnetic plate 12551 and the magnetic block 12554 are magnetically fixed, so that the steam in the drying chamber 4 is discharged outward through the exhaust pipe 123 again. When the sliding frame 81 is reset and moved back, the straight groove connected to the annular groove in the rotating guide assembly 1254 is at the top at this time, and the rotating guide rod 12542 is at the bottom. Therefore, when the rotating guide rod 12542 is reset, it is against the side wall of the annular groove and flips, causing the spring B12543 to stretch, so that the rotating guide rod 12542 slides along the outer wall of the connecting rod 1253 until it is reset, that is, when the sliding frame 81 is reset and moved back, the nozzle 95 sprays water to clean the surface of the lead frame.

[0074] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of ​​the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A lead frame washing device based on multi-dimensional perception, characterized in that: include: The water washing box body is respectively provided with a detection chamber, a water washing chamber and a drying chamber inside the water washing box body, the detection chamber, the water washing chamber and the drying chamber are adjacent to each other in sequence, a bottom guide frame is passed through the detection chamber, the water washing chamber and the drying chamber, the interior of the water washing box body above the bottom guide frame is evenly installed with oppositely arranged electric guide rollers, industrial cameras are provided at the centers of both sides of the interior of the detection chamber, an online detection mechanism is provided inside the water washing chamber, the online detection mechanism is located between the electric guide roller and the bottom guide frame, precision spray mechanisms are provided on the inner walls of the water washing chamber on both sides of the online detection mechanism, drying rods are evenly provided on both sides of the walls of the drying chamber, an air filter is connected to the outside of the drying chamber, a control device is provided on one side of the water washing box body, a main processing module is provided inside the control device, one end of the main processing module is connected to the coordinate establishment module by signal, one end of the coordinate establishment module is connected to the area measurement module by signal, one end of the area measurement module is connected to the intensity comparison module, and one end of the intensity comparison module is connected to the electric guide roller by signal; The precision spray mechanism includes a four-way pipe fixed on the inner wall of the water washing chamber, the water outlet ends of the four-way pipe are installed with flow control valves and are respectively connected to hoses, one end of the hose is provided with a nozzle, the outside of the nozzle is fixed with a fixed sleeve, the inner wall of the detection chamber is equidistantly fixed with a guide frame, the outer side of the top of the nozzle is inserted into the inside of the guide frame for sliding, and a telescopic cylinder B is installed on the side of the fixed sleeve close to the four-way pipe, one end of the telescopic cylinder B is fixed to the inner wall of the detection chamber, and one end of the telescopic cylinder B is connected to the coordinate establishment module signal; The online detection mechanism includes a sliding frame slidably mounted on the top of the electric guide roller inside the washing chamber, and pressure detection components are fixed on both sides of the bottom end of the sliding frame. The pressure detection components are connected to the flow control valve signal.

2. The lead frame washing equipment based on multi-dimensional perception according to claim 1, characterized in that: The nozzle includes a rear tube fixed at one end of a hose, an air inlet head passes through one side of the rear tube, the front end of the rear tube is rotatably connected to a rotating head, the outer side of the rotating head is equidistantly rotatably connected to a rotating tube, the front ends of the rotating tubes are commonly connected to an angle adjustment assembly, and the inner side of the angle adjustment assembly is fixedly connected to the front end center of the rotating head.

3. The lead frame washing equipment based on multi-dimensional perception according to claim 2, characterized in that: The rear tube includes a main body, the water inlet end of the main body is connected to an inner tube, one end of the inner tube extends to the interior of the main body, a guide plate is connected between the inner tube and the inner cavity of the main body, and openings are equidistantly provided at the front end of the inner tube. The air inlet head is located between the water inlet of the main body and the guide plate. The rotating tube includes a ball head embedded in the inner side of the rotating head, the ball head is rotatably connected to the inner wall of the rotating head, one end of the ball head is connected to a rotating rod, and nozzles are equidistantly provided on one side of the rotating rod. The angle adjustment assembly includes a telescopic cylinder C fixed at the front end center of the rotating head, the telescopic cylinder C is signal-connected to the area measurement module, a movable head is fixed at the front end of the telescopic cylinder C, and a plurality of hinged plates are rotatably connected to the outer side of the movable head, and one end of the hinged plate is rotatably connected to one side of an adjacent rotating rod.

4. The lead frame washing equipment based on multi-dimensional perception according to claim 3, characterized in that: Three nozzles are provided on the rotating rod. The three nozzles are located in the same plane, and the angle between the plane and the rotating rod is 30 degrees. The spraying angles of the three nozzles gradually expand outward from the inside to the outside.

5. The lead frame washing equipment based on multi-dimensional perception according to claim 1, characterized in that: A telescopic cylinder A is installed on one side of the sliding frame, and one end of the telescopic cylinder A is fixed to one side of the top of the electric guide roller. The pressure detection assembly includes a detection plate, and a plurality of probes are equidistantly slid through the inner side of the detection plate. A spring A is connected between the inner end of the probe and the inner wall of the detection plate. Pressure sensors are fixed on the inner wall of the detection plate relative to the probe, and elastic rods are fixed to the inner ends of the probes. In the initial state, the elastic rods and the pressure sensors are in contact but apply extrusion force. The number of the pressure sensors is a multiple of three, and the flow control valve and the adjacent pressure sensors are signal connected.

6. The lead frame washing equipment based on multi-dimensional perception according to claim 5, characterized in that: One side of the pressure detection component is rotatably connected to a scratch brush plate, and the scratch brush plate is located on the inlet side of the lead frame in the water washing chamber. A flip assembly is provided on the top of the scratch brush plate, and the flip assembly includes a telescopic reset plate fixed on the top of the scratch brush plate close to the side of the electric guide roller, and a guide cross plate is fixed to the outer side of the electric guide roller next to the telescopic reset plate. The side of the telescopic reset plate close to the guide cross plate is an inclined surface. When the pressure detection component moves horizontally, the telescopic reset plate and the guide cross plate alternately contact and separate in turn.

7. The lead frame washing equipment based on multi-dimensional perception according to claim 1, characterized in that: A circulation mechanism is provided at the bottom end of the washing chamber, and the circulation mechanism includes a water tank fixed at the bottom end of the washing chamber, a water flow filter is provided inside the water tank, a collecting tank is fixed at the top of the water tank, the bottom end of the collecting tank and the top end of the water flow filter are connected, and a water pump is fixed at the bottom end of the drying chamber, and a water adding valve pipe is connected between the water inlet end of the water pump and the water outlet end of the water tank, and the water outlet end of the water pump is connected to a diversion pipe, and both water outlet ends of the diversion pipe are connected to a heat exchange coil, and the heat exchange coil is fixed between adjacent drying rods and the inner wall of the drying chamber, and the water outlet ends of the heat exchange coil are fixedly connected to one end of an adjacent four-way pipe, and a return channel is fixed directly below the bottom guide frame inside the drying chamber, and one side of the return channel and the collection tank are connected to each other.

8. The lead frame washing equipment based on multi-dimensional perception according to claim 2, characterized in that: A dehumidification mechanism is provided at the top of the drying chamber, and the dehumidification mechanism includes an exhaust pipe, a bulb is provided at one end of the exhaust pipe, the top of the bulb is connected to an exhaust pipe, and the top of the exhaust pipe extends to the outside of the water washing box, and a circulation component is provided at the bottom of the bulb, and an automatic switching mechanism is provided throughout the interior of the bulb, and the circulation component includes a circulating air pipe connected to the bottom of the bulb, and both sides of the circulating air pipe are connected to air distribution pipes, one end of the air distribution pipe passes through the interior of the water washing chamber, and one end of the air distribution pipe is evenly connected to a one-way pipe, and one end of the one-way pipe is connected to one end of an adjacent air inlet head.

9. The lead frame washing equipment based on multi-dimensional perception according to claim 8, characterized in that: The automatic switching mechanism includes a connecting rod passing through one side of the ball tube, a ball valve is fixed to one end of the connecting rod, an L-shaped channel is opened inside the ball valve, the other end of the connecting rod passes through the interior of the water washing chamber, one end of the connecting rod is connected to the top end of the electric guide roller through a bearing seat, and a rotation guide assembly and a reset assembly are respectively provided on the outside of the connecting rod.

10. The lead frame washing equipment based on multi-dimensional perception according to claim 9, characterized in that: The rotation guide assembly includes a special-shaped guide groove opened on the outside of the connecting rod, and one side of the sliding frame below the special-shaped guide groove is rotatably connected to a rotating guide rod, and the top of the rotating guide rod passes through the inside of the special-shaped guide groove, and one side of the rotating guide rod is connected to a spring B, and one end of the spring B is fixedly connected to the side wall of the sliding frame. When the rotating guide rod moves left and right with the sliding frame, it will drive the connecting rod to rotate 180°. The reset assembly includes an active magnetic plate fixed on the outside of the connecting rod, and a fixing ring is fixed on the outside of the ball tube outside the active magnetic plate. A spring C is connected between the inner side wall of the fixing ring and the active magnetic plate, and a magnetic block is fixed on the inner side wall of the fixing ring near the spring C, and the magnetic block and the active magnetic plate are magnetically fixed.

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