Lead frame washing equipment based on multi-dimensional perception

Abstract

The invention provides lead frame washing equipment based on multi-dimensional perception, and belongs to the technical field of lead frame production, the lead frame washing equipment comprises a washing box body, the washing box body is internally provided with a detection cavity, a washing cavity and a drying cavity, the detection cavity, the washing cavity and the drying cavity are sequentially and adjacently communicated, and a bottom guide frame penetrates through the detection cavity, the washing cavity and the drying cavity; oppositely arranged electric guide rollers are uniformly mounted in the washing box body above the bottom guide frame, and industrial cameras are arranged in the centers of the two sides in the detection cavity. Through cooperation of the industrial camera, the control device and the telescopic air cylinder B, lead frame stains are accurately positioned, parameters such as the spray head cleaning angle are regulated and controlled to prevent lead frame deformation, real-time monitoring is conducted through the online detection mechanism, water pressure is accurately controlled according to the stain condition, linkage of components such as scraping and brushing plates is achieved, multi-mode dynamic cleaning of water foam, water columns and scraping is achieved, water is saved, loss is reduced, and the service life of the lead frame is prolonged. And intelligence, high efficiency and precision of the washing process are achieved.

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 receiving the IC chip. It provides the IC chip with a base and welding leads, i.e., lead pins. Before encapsulating the lead frame, a water washing device is generally required to thoroughly clean the welding residues, metal debris, etc. on the surface of the lead frame. Chinese patent authorization announcement CN222020188U discloses a lead frame washing device, including a turntable, a first rotating shaft is rotatably connected to the turntable, a first motor is fixedly connected to the bottom end of the turntable, an output end of the first motor is drivingly connected to the bottom end of the first rotating shaft, the turntable is driven to rotate by the first motor, water is sprayed from the nozzle by a water pump, and the lead frame is washed twice, so that the lead frame washing operation is carried out in the washing tank throughout the process, effectively preventing the washing water from splashing, and the secondary washing improves the cleanliness of the lead frame; 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 performs synchronous water washing on the surface of the lead frame by immersion and lateral spraying of a single nozzle, it is not easy to perform focused water washing according to different positions and degrees of stains, which can easily 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

[0003] 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.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is: a lead frame water washing device based on multi-dimensional perception, comprising: a water washing box body, inside which a detection chamber, a water washing chamber, and a drying chamber are respectively arranged. The detection chamber, the water washing chamber, and the drying chamber are adjacent and communicated in sequence. A bottom guide frame penetrates through the detection chamber, the water washing chamber, and the drying chamber. Electric guide rollers are uniformly installed inside the water washing box body above the bottom guide frame and are arranged opposite to each other. Industrial cameras are arranged at the centers of both sides inside the detection chamber. An online detection mechanism is arranged inside the water washing chamber and is located between the electric guide rollers and the bottom guide frame. Precision spraying mechanisms are arranged on the inner walls of the water washing chamber on both outer sides of the online detection mechanism. Drying rods are uniformly arranged on both side walls of the drying chamber. An air filter is connected to the outside of the drying chamber. A control device is arranged on one side of the water washing box body. A main processing module is arranged 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. One end of the intensity comparison module is signal-connected to the electric guide rollers; The precision spraying mechanism includes a four-way pipe fixed on the inner wall of the water washing chamber. Flow control valves are installed at the water outlet ends of the four-way pipe and are respectively communicated with hoses. One end of each hose is provided with a nozzle. Fixed sliding sleeves are fixed outside each nozzle. Guide frames are fixed at equal intervals on the inner wall of the detection chamber. The outer sides of the tops of the nozzles are inserted into the guide frames for sliding. Telescopic cylinders B are installed on one side of each fixed sliding sleeve close to the four-way pipe. One end of each telescopic cylinder B is fixed to the inner wall of the detection chamber. One end of the telescopic cylinder B is signal-connected to the coordinate establishment module.

[0005] Preferably, the nozzle includes a rear pipe fixed at one end of the hose. An air inlet head penetrates through one side of the rear pipe. The front end of the rear pipe is rotatably connected to a rotating head. Rotating pipes are rotatably connected to the outside of the rotating head at equal intervals. The front ends of the rotating pipes are jointly connected to an angle adjustment assembly. The inner side of the angle adjustment assembly is fixedly connected to the center of the front end of the rotating head.

[0006] Preferably, the rear pipe includes a main body. The water inlet end of the main body is communicated with an inner pipe. One end of the inner pipe extends into the main body. A guide vane is connected between the inner pipe and the inner cavity of the main body. Openings are arranged at equal intervals at the front end of the inner pipe. The air inlet head is located between the water inlet of the main body and the guide vane. The rotating pipe includes a ball head embedded inside 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 communicated with a rotating rod. Nozzles are arranged at equal intervals 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. A plurality of hinge plates are rotatably connected to the outside of the movable head. One end of each hinge plate is rotatably connected to one side of the adjacent rotating rod.

[0007] Preferably, three nozzles are provided on the rotating rod. The three nozzles are in the same plane, and the angle between this plane and the rotating rod is 30°. The spraying angles of the three nozzles gradually expand outward from the inside to the outside.

[0008] Preferably, the on-line detection mechanism includes a sliding frame slidably mounted on the top of the electric guiding roller located inside the water washing chamber. One side of the sliding frame is provided with a telescopic cylinder A. One end of the telescopic cylinder A is fixed to one side of the top of the electric guiding roller. Pressure detection components are fixed on both sides of the bottom end of the sliding frame. The pressure detection components are in signal connection with the flow control valve; the pressure detection components include a detection plate. A plurality of probes are slidably penetrated through the inner side of the detection plate at equal intervals. 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 walls of the detection plate opposite to the probes. Elastic rods are fixed to the inner ends of the probes. In the initial state, the elastic rods are in contact with the pressure sensors but apply extrusion pressure. The number of pressure sensors is a multiple of three. The flow control valve is in signal connection with the adjacent pressure sensors.

[0009] Preferably, a scraping brush plate is rotatably connected to one side of the pressure detection component. The scraping brush plate is located at the lead-in side of the lead frame in the water washing chamber. A turning component is provided at the top of the scraping brush plate. The turning component includes a telescopic reset plate fixed to the top of the scraping brush plate near one side of the electric guiding roller. A guiding cross plate is fixed to the outside of the electric guiding roller beside the telescopic reset plate. The side of the telescopic reset plate close to the guiding cross plate is an inclined surface. When the pressure detection component moves horizontally, the telescopic reset plate and the guiding cross plate are alternately in contact and separated.

[0010] Preferably, a circulating mechanism is provided at the bottom end inside the water washing chamber. The circulating mechanism includes a water tank fixed to the bottom end of the water washing chamber. A water flow filter is provided inside the water tank. A collecting tank is fixed to the top of the water tank. The bottom end of the collecting tank is communicated with the top end of the water flow filter. A water pump is fixed to the bottom end of the drying chamber. A water adding valve pipe is communicated 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 communicated with a shunt pipe. Both water outlet ends of the shunt pipe are communicated with heat exchange coils. The heat exchange coils are fixed between the adjacent drying rods and the inner wall of the drying chamber. The water outlet ends of the heat exchange coils are respectively fixed to one end of the adjacent four-way pipes. A return channel is fixed directly below the bottom guiding frame inside the drying chamber. One side of the return channel is communicated with the collecting tank.

[0011] Preferably, a moisture exhaust mechanism is provided at the top inside the drying chamber. The moisture exhaust mechanism includes an exhaust pipe. One end of the exhaust pipe is provided with a spherical pipe. The top of the spherical pipe is communicated with an exhaust pipe, and the top of the exhaust pipe extends to the outside of the water washing box body. A circulation component is provided at the bottom of the spherical pipe. An automatic switching mechanism is arranged through the inside of the spherical pipe. The circulation component includes a circulation air pipe communicated with the bottom of the spherical pipe. Both sides of the circulation air pipe are communicated with branch air pipes. One end of each branch air pipe penetrates into the inside of the water washing chamber. One end of each branch air pipe is uniformly communicated with a one-way pipe. One end of the one-way pipe is connected with one end of the adjacent air inlet head.

[0012] Preferably, the automatic switching mechanism includes a connecting rod penetrating through one side of the spherical pipe. A ball valve is fixed at one end of the connecting rod. An L-shaped channel is opened inside the ball valve. The other end of the connecting rod penetrates into the inside of the water washing chamber. One end of the connecting rod is connected with the top of the electric guiding roller through a bearing seat. A rotating guiding component and a resetting component are respectively arranged on the outer side of the connecting rod.

[0013] Preferably, the rotating guiding component includes a special-shaped guiding groove opened on the outer side of the connecting rod. One side of the sliding frame below the special-shaped guiding groove is rotatably connected with a rotating guiding rod. The top of the rotating guiding rod penetrates into the inside of the special-shaped guiding groove. One side of the rotating guiding rod is connected with a spring B. One end of the spring B is fixedly connected with the side wall of the sliding frame. When the rotating guiding rod moves left and right along with the sliding frame, it will drive the connecting rod to rotate by 180°. The resetting component includes a movable magnetic plate fixed on the outer side of the connecting rod. A fixed ring is fixed on the outer side of the spherical pipe outside the movable magnetic plate. A spring C is connected between the inner side wall of the fixed ring and the movable magnetic plate. A magnetic block is fixed on the inner side wall of the fixed ring close to the spring C. The magnetic block and the movable magnetic plate are magnetically fixed.

[0014] Compared with the prior art, the beneficial effects of the present invention include: Through the signal connection and cooperation relationship among the industrial camera, the control device, the telescopic cylinder B, etc., the accurate positioning of the stain distribution area and area on the surface of the lead frame can be realized, so as to accurately control the spraying angle and cleaning time of the spray head, avoid excessive cleaning of the surface of the lead frame, reduce the deformation of the lead frame. At the same time, the online detection mechanism is used to realize the real-time online detection during the cleaning process, so as to further accurately control the water pressure according to the stubborn degree of the stains and achieve the efficient cleaning of the stains. Under the multi-dimensional detection and recognition, the intelligent, efficient and accurate water washing process is realized. At the same time, according to the combined action of the scraping brush plate, the flipping component and the automatic switching mechanism, etc., the dynamic control of the cleaning mode is realized. The multi-mode cooperation of water foam, water column, scraping, etc. is used to reduce the water consumption of single spraying, reduce the stamping effect on the surface of the lead frame, and effectively avoid the water washing deformation of the lead frame. Description of the Drawings

[0015] The disclosure of the present invention will be described 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 drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows a schematic perspective sectional structure diagram proposed according to an embodiment of the present invention; Figure 2 Schematically shows a schematic front sectional structure diagram proposed according to an embodiment of the present invention; Figure 3 Schematically shows a schematic perspective structure diagram of a precise spraying mechanism proposed according to an embodiment of the present invention; Figure 4 Schematically shows a schematic perspective structure diagram of a circulation component proposed according to an embodiment of the present invention; Figure 5 Schematically shows a schematic perspective structure diagram of a nozzle proposed according to an embodiment of the present invention; Figure 6 Schematically shows a schematic top-down perspective structure diagram of a rear pipe proposed according to an embodiment of the present invention; Figure 7 Schematically shows a schematic perspective structure diagram of a rotating pipe proposed according to an embodiment of the present invention; Figure 8 Schematically shows a schematic perspective structure diagram of an on-line detection mechanism proposed according to an embodiment of the present invention; Figure 9 Schematically shows a schematic perspective structure diagram of a flipping component proposed according to an embodiment of the present invention; Figure 10 Schematically shows a schematic front perspective structure diagram of a pressure detection component proposed according to an embodiment of the present invention; Figure 11 Schematically shows a schematic perspective structure diagram of an automatic switching mechanism proposed according to an embodiment of the present invention; Figure 12 Schematically shows a schematic of Figure 9 the structure at position A proposed according to an embodiment of the present invention; Figure 13 Schematically shows a schematic perspective structure diagram of a reset component proposed according to an embodiment of the present invention; Figure 14 Schematically shows a schematic structure diagram of a lead frame stain coordinate model proposed according to an embodiment of the present invention; Figure 15 Schematically shows a schematic block diagram of a main processing module program proposed according to an embodiment of the present invention.

[0016] Reference numerals in the figure: 1, water washing box body; 2, detection chamber; 3, water washing chamber; 4, drying chamber; 5, bottom guide frame; 6, industrial camera; 7, electric guide roller; 8, on-line detection mechanism; 81, sliding frame; 82, telescopic cylinder A; 83, pressure detection component; 831, detection plate; 832, probe; 833, spring A; 834, pressure sensor; 835, elastic rod; 84, rubbing brush plate; 85, flipping component; 851, telescopic reset plate; 852, guiding cross plate; 9, precise spraying mechanism; 91, four-way pipe; 92, flow control valve; 93, hose; 94, fixed sliding sleeve; 95, nozzle; 951, rear pipe; 9511, main body; 9512, inner pipe; 9513, guide vane; 9514, opening; 952, rotating head; 953, air inlet head; 954, rotating pipe; 9541, rotating rod; 9542, nozzle; 9543, ball head; 955, angle adjustment component; 9551, telescopic cylinder C; 9552, movable head; 9553, hinged plate; 96, guiding frame; 97, telescopic cylinder B; 10, circulation mechanism; 101, water tank; 102, collection tank; 103, water filling valve pipe; 104, water pump; 105, shunt pipe; 106, heat exchange coil; 107, water flow filter; 108, return channel; 11, drying rod; 12, moisture exhaust mechanism; 121, exhaust pipe; 122, spherical pipe; 123, exhaust pipe; 124, circulation component; 1241, branch air pipe; 1242, one-way pipe; 1243, circulation air pipe; 125, automatic switching mechanism; 1251, ball valve; 1252, L-shaped channel; 1253, connecting rod; 1254, rotating guiding component; 12541, special-shaped guiding groove; 12542, rotating guiding rod; 12543, spring B; 1255, reset component; 12551, movable magnetic plate; 12552, fixed ring; 12553, spring C; 12554, magnetic block; 13, air filter; 14, control device; 141, main processing module; 142, coordinate establishment module; 143, area measurement module; 144, strength comparison module. Detailed implementation manners

[0017] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various structural forms and implementation manners that can be mutually replaced. Therefore, the following detailed implementation manners and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0018] Example 1. To solve the problem in the prior art that it is difficult to perform targeted cleaning according to the stain distribution, the following solution is disclosed. Specifically, as shown in Figures 1 - 10 , Figure 14 , Figure 15 : A lead frame water washing device based on multi-dimensional perception includes: a water washing box body 1. Inside the water washing box body 1, a detection chamber 2, a water washing chamber 3, and a drying chamber 4 are respectively arranged. The detection chamber 2, the water washing chamber 3, and the drying chamber 4 are adjacent and connected in sequence. A bottom guide frame 5 penetrates through the detection chamber 2, the water washing chamber 3, and the drying chamber 4. Oppositely arranged electric guide rollers 7 are uniformly installed inside the water washing box body 1 above the bottom guide frame 5. Industrial cameras 6 are arranged at the centers of both sides inside the detection chamber 2. An on-line detection mechanism 8 is arranged inside the water washing chamber 3. The on-line detection mechanism 8 is located between the electric guide rollers 7 and the bottom guide frame 5. Precision spraying mechanisms 9 are arranged on the inner walls of the water washing chamber 3 on both outer sides of the on-line detection mechanism 8. Drying rods 11 are uniformly arranged on both side walls of the drying chamber 4. An air filter 13 is connected to the outside of the drying chamber 4. A control device 14 is arranged on one side of the water washing box body 1. Inside the control device 14, a main processing module 141 is arranged. One end of the main processing module 141 is signal-connected to a coordinate establishment module 142. One end of the coordinate establishment module 142 is signal-connected to an area measurement module 143. One end of the area measurement module 143 is connected to an intensity comparison module 144. One end of the intensity comparison module 144 is signal-connected to the electric guide roller 7; The precision spraying mechanism 9 includes a four-way pipe 91 fixed on the inner wall of the water washing chamber 3. Flow control valves 92 are installed at the water outlet ends of the four-way pipe 91 and are respectively connected to flexible hoses 93. One ends of the flexible hoses 93 are respectively provided with nozzles 95. Fixed sliding sleeves 94 are fixed outside the nozzles 95. Guide frames 96 are equidistantly fixed on the inner wall of the detection chamber 2. The outer sides of the tops of the nozzles 95 are inserted into the inside of the guide frames 96 for sliding. Telescopic cylinders B97 are installed on one side of the fixed sliding sleeves 94 close to the four-way pipe 91. One ends of the telescopic cylinders B97 are fixed to the inner wall of the detection chamber 2. One end of the telescopic cylinder B97 is signal-connected to the coordinate establishment module 142; The on-line detection mechanism 8 includes a sliding frame 81 slidably installed on the top of the electric guide roller 7 inside the water washing chamber 3. One side of the sliding frame 81 is provided with a telescopic cylinder A82. 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 components 83 are signal-connected to the flow control valves 92; Specifically, as shown in Figures 1 - 5As shown, with the cooperation of the bottom guide frame 5 and the electric guide roller 7, the intermittent longitudinal horizontal advancement of the lead frame is realized, so as to achieve the double-sided synchronous cleaning effect of the lead frame. Using the industrial camera 6 and the main processing module 141, the lead frame passing through during the equidistant transmission of the electric guide roller 7 is identified and analyzed. For example, Figure 14 From the perspective of the moving direction of the lead frame, the coordinate system is used to locate the stains on the surface of the lead frame in the recognition area, so as to accurately control the X-axis telescopic length of the telescopic cylinder B97 corresponding to the corresponding position in the Y-axis area, so as to ensure that the spraying position of the nozzle 95 corresponds to the stain distribution position. According to the color and surface texture of the stains, the type of stains attached to the surface of the current lead frame is confirmed. At the same time, under the establishment of the coordinate system, the area measurement module 143 is used to distribute the size. By comparing the stain content in different position areas of the same lead frame, the traction movement time interval of the electric guide roller 7 for the lead frame is controlled, that is, the cleaning time of the left and right different partitions of the lead frame is controlled according to different stain conditions, so as to perform fixed-point cleaning on strong stains, reduce the waste of water flow, avoid over-cleaning of local areas of the lead frame, and at the same time use the pressure detection effect of the pressure detection component 83 to judge the adhesion strength of the stains to the lead frame during the cleaning process, so as to adjust the hose 93 and control the water flow spraying pressure, so as to perform high-pressure spraying on strong stains and gentle spraying on weak stains, reduce the impact damage to the lead frame, and make the cleaning process more intelligent, efficient and accurate by using the multi-dimensional perception effects of vision and touch; The nozzle 95 includes a rear pipe 951 fixed to one end of the hose 93. An air inlet head 953 penetrates through one side of the rear pipe 951. The front end of the rear pipe 951 is rotatably connected to a rotating head 952. The outer side of the rotating head 952 is rotatably connected with rotating pipes 954 at equal intervals. The front ends of the rotating pipes 954 are commonly connected to an angle adjustment assembly 955. The inner side of the angle adjustment assembly 955 is fixedly connected to the front center of the rotating head 952; Specifically, for example, Figures 5 - 7 As shown, in conventional technical means or what is easily thought of, the connection end of the rear pipe 951 and the hose 93 is adjusted and controlled through the adjustment assembly. This method is likely to cause the direction adjustment range of the spraying end of the nozzle 95 to be too large, so that the fixed-point precise adjustment cannot be performed according to the stain distribution. By setting the angle adjustment assembly 955 at the front end of the rear pipe 951, the adjustment angle of the rotating pipe 954 can be more accurately controlled, and at the same time, using the reaction force of the water flow spraying, the rotating pipe 954 rotates automatically, so that the spraying range and angle are more comprehensive; The rear pipe 951 includes a main body 9511. The water inlet end of the main body 9511 is communicated with an inner pipe 9512. One end of the inner pipe 9512 extends into the interior of the main body 9511. A guide vane 9513 is connected between the inner cavity of the inner pipe 9512 and the main body 9511. Openings 9514 are equidistantly arranged at the front end of the inner pipe 9512. The air inlet head 953 is located between the water inlet of the main body 9511 and the guide vane 9513. The rotating pipe 954 includes a ball head 9543 embedded in the inner side of the rotating head 952. The ball head 9543 is rotatably connected to the inner wall of the rotating head 952. One end of the ball head 9543 is communicated with a rotating rod 9541. Nozzles 9542 are equidistantly arranged on one side of the rotating rod 9541. The angle adjustment assembly 955 includes a telescopic cylinder C9551 fixed at the center of the front end of the rotating head 952. The telescopic cylinder C9551 is signal-connected to the area measurement module 143. A movable head 9552 is fixed at the front end of the telescopic cylinder C9551. A plurality of hinge plates 9553 are rotatably connected to the outer side of the movable head 9552. One end of the hinge plate 9553 is rotatably connected to one side of the adjacent rotating rod 9541; Specifically, as Figure 6 , Figure 7 shown, in conventional technical means or what is easily thought of, by pressurizing and spraying water flow, the direct flushing of stains on the lead frame is realized. However, due to the diverse types of stains on the surface of the lead frame, some stains have strong adhesion to the lead frame. The direct flushing method requires the flushing pressure to reach a certain level, and overpressure is likely to cause deformation of the lead frame due to impact. By cooperating the main body 9511 with the air inlet head 953, a mixing chamber is introduced into the main body 9511, so as to increase the air content in the water flow before water spraying, make the sprayed water column carry bubbles, and utilize the adhesion of the bubbles to the surface of the lead frame 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 shedding of the stains, thereby reducing the excessive water pressure and being beneficial to preventing the flushing deformation of the lead frame; There are three nozzles 9542 arranged on the rotating rod 9541. The three nozzles 9542 are in the same plane, and the angle between this plane and the rotating rod 9541 is 30°. The spraying angles of the three nozzles 9542 gradually expand outward from the inside to the outside; Specifically, as Figure 7 shown, in conventional technical means or what is easily thought of, the water flow is guided by the nozzles 9542 with the same specification distribution. However, this method makes the angle between the sprayed water flow and the lead frame fixed. By using nozzles 9542 with different spraying angles, the acting angles of the water flow on the lead frame are different, so as to realize the impact on stains at multiple angles to improve the stain shedding effect. At the same time, after the adjustment of the angle adjustment assembly 955, the diverse adjustment effects of the spraying range and the spraying angle are synchronously realized; The pressure detection assembly 83 includes a detection plate 831. A plurality of probes 832 are slidably penetrated through the inner side of the detection plate 831 at equal intervals. A spring A 833 is connected between the inner end of the probe 832 and the inner wall of the detection plate 831. Pressure sensors 834 are fixed on the inner walls of the detection plate 831 opposite to the probes 832. Elastic rods 835 are fixed at the inner ends of the probes 832. In the initial state, the elastic rods 835 are in contact with the pressure sensors 834 but apply extrusion pressure. The number of pressure sensors 834 is a multiple of three. The flow control valve 92 is signal-connected to the adjacent pressure sensors 834; Specifically, as Figures 8 - 10 shown, in conventional technical means or what is easily thought of, a fixed pressure detection assembly 83 is used to detect the surface of the lead frame after cleaning. However, this method cannot dynamically observe the stain situation during the cleaning process. By cooperating with the telescopic cylinder A 82, the pressure detection assembly 83 can perform real-time inspection on the lead frame during the cleaning process and cooperate with the flow control valve 92 to timely adjust the water pressure, thereby reducing water waste; One side of the pressure detection assembly 83 is rotatably connected with a scraping brush plate 84. The scraping brush plate 84 is located at the lead-in side of the lead frame in the water washing chamber 3. A flipping assembly 85 is arranged at the top of the scraping brush plate 84. The flipping assembly 85 includes a telescopic reset plate 851 fixed at the top of the scraping brush plate 84 near one side of the electric guide roller 7. A guide cross plate 852 is fixed on the outer side of the electric guide roller 7 beside the telescopic reset plate 851. One side of the telescopic reset plate 851 close to the guide cross plate 852 is an inclined surface. When the pressure detection assembly 83 moves horizontally, the telescopic reset plate 851 and the guide cross plate 852 are alternately in contact and separated; Specifically, as Figure 9 shown, in conventional technical means or what is easily thought of, the movement of the pressure detection assembly 83 is used to synchronously move the scraping brush plate 84, so as to scrape and clean the stains on the lead frame. However, this method easily causes the stains to accumulate on the surface of the scraping brush plate 84. By using the flipping assembly 85, the scraping brush plate 84 is flipped after scraping, so that the water flow can be sprayed onto the scraping surface of the scraping brush plate 84 to synchronously wash the stains.

[0019] Working principle: In this embodiment, when in use, the lead frame is longitudinally placed on the bottom guide frame 5, with the top end of the lead frame located between the left and right groups of electric guide rollers 7. The electric guide rollers 7 are started, and the electric guide rollers 7 drive the lead frame to move forward intermittently. During the rest period of the lead frame inside the detection cavity 2, the detection cavity 2 is started to irradiate and identify both sides of the lead frame. Using the main processing module 141, the stain points on the lead frame within the identification area are located, and the relevant data information is displayed and located using the coordinate establishment module 142. Then, the occupied area of the total stains on the lead frame is calculated and compared to determine the water washing time of the clean and dirty areas on the lead frame, thereby controlling the intermittent movement time interval of the electric guide rollers 7; When the lead frame moves to the cleaning area in the water washing cavity 3, under the control of the coordinate establishment module 142, the telescopic cylinder B97 is extended or shortened to move the spray head 95 to the corresponding five groups of areas. At the same time, the area measurement module 143 is used to control the telescopic adjustment of the telescopic cylinder C9551, so that the articulated plate 9553 pulls the rotating pipe 954 to move inwards or outwards, thereby controlling and adjusting the overall spraying range of the rotating pipe 954; The water flow is transmitted to the flow control valve 92 through the four-way pipe 91, and successively passes through the main body 9511 and the inner pipe 9512 to enter the rotating head 952, and is ejected outward through the nozzle 9542 by the rotating rod 9541. Since the nozzles 9542 are inclinedly distributed on the rotating rod 9541, the ejected water flow and the lead frame form a reaction driving force, thereby realizing the rotation of the rotating pipe 954 driving the rotating head 952, enabling the spraying area to fully cover the stains. At the same time, due to the different inclination degrees of the nozzles 9542, the water flow impact directions on the stains are different, thereby promoting the shedding of the stains and achieving the effect of precise stain removal; During the cleaning process, the telescopic cylinder A82 is simultaneously started to perform telescopic movement to drive the pressure detection component 83 to move horizontally along the cleaning area of the lead frame, so that the probe 832 always abuts against the outer surface of the lead frame. When the stains on the lead frame are stubbornly attached or thick, the probe 832 will contact the stains and slide inwards, causing the elastic rod 835 to exert an extrusion force on the pressure sensor 834 inwards. According to the magnitude of the extrusion force received by 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 spraying water pressure and promoting the cleaning effect on stubborn stains. Using the reciprocating movement of the pressure detection component 83, the stains on the lead frame during the cleaning process are detected in real time and dynamically, reducing the overpressure waste of water flow, and cooperating with the visual detection of the industrial camera 6 to achieve precise control and efficient response to the cleaning from multiple dimensions; When the telescopic cylinder A82 extends first, the pressure detection component 83 synchronously drives the rubbing brush plate 84 to move, causing the telescopic reset plate 851 to move synchronously and contact the guiding cross plate 852. Since the contact surface between the telescopic reset plate 851 and the guiding cross plate 852 is an inclined plane in the moving direction of the telescopic reset plate 851 at this time, the telescopic reset plate 851 is hindered and shortened downward, keeping the rubbing brush plate 84 in contact with the pressure detection component 83 to unidirectionally push and rub the stains on the lead frame, and pushing the stains to the clean side of the lead frame. When the telescopic cylinder A82 shortens, the pressure detection component 83 drives the rubbing brush plate 84 to reset. At this time, the telescopic reset plate 851 has moved to the outermost end and separated from the guiding cross plate 852. Therefore, the telescopic reset plate 851 rises and elongates to reset. Under the reset movement of the pressure detection component 83, when the telescopic reset plate 851 moves back, it contacts the guiding cross plate 852 again. Since the contact surface is a vertical surface at this time, the telescopic reset plate 851 is hindered and drives the rubbing brush plate 84 to flip outward, making the rubbing surface at the bottom of the rubbing brush plate 84 flip outward away from the lead frame. Then, during the movement, the sprayed water flow of the nozzle 95 synchronously flushes the rubbing brush plate 84 until the telescopic reset plate 851 separates from the guiding cross plate 852, and the rubbing brush plate 84 resets to the fitting position with the pressure detection component 83. After cleaning, the lead frame continues to move into the drying chamber 4 and is dried under the action of the drying rod 11.

[0020] Embodiment 2. In order to further achieve the green sustainability of the water washing device, the cleaning water flow and the drying steam are now recycled, and the following scheme is thus disclosed. Specifically, as Figure 1 、 Figure 2 、 Figure 4 、 Figures 11 - 13 shown: A circulation mechanism 10 is arranged at the bottom end inside the water washing chamber 3. The circulation mechanism 10 includes a water tank 101 fixed to the bottom end of the water washing chamber 3. A water flow filter 107 is arranged inside the water tank 101. A collection tank 102 is fixed to the top end of the water tank 101. The bottom end of the collection tank 102 is communicated with the top end of the water flow filter 107. A water pump 104 is fixed to the bottom end of the drying chamber 4. A water adding valve pipe 103 is communicated between the water inlet end of the water pump 104 and the water outlet end of the water tank 101. The water outlet end of the water pump 104 is communicated with a shunt pipe 105. Both water outlet ends of the shunt pipe 105 are communicated with heat exchange coiled pipes 106. The heat exchange coiled pipes 106 are all fixed between the adjacent drying rods 11 and the inner wall of the drying chamber 4. The water outlet ends of the heat exchange coiled pipes 106 are all fixedly connected to one end of the adjacent four-way pipe 91. A return channel 108 is fixed directly below the bottom guiding frame 5 inside the drying chamber 4. One side of the return channel 108 is communicated with the collection tank 102; Specifically, as Figure 2As shown, by utilizing the drying environment in the drying chamber 4, heat exchange of the heat exchange coil 106 is carried out in the drying chamber 4 to a certain extent, thereby increasing the temperature of the water flow sprayed by the spray head 95. The high temperature promotes the molecular activity on the stains, thus improving the cleaning effect. At the same time, the cleaning water flow can be supplemented at any time by using the water adding valve pipe 103; A moisture exhaust mechanism 12 is provided at the top end inside the drying chamber 4. The moisture exhaust mechanism 12 includes an air extraction pipe 121. One end of the air extraction pipe 121 is provided with a spherical pipe 122. The top end of the spherical pipe 122 is communicated with an exhaust pipe 123. The top end of the exhaust pipe 123 extends to the outside of the water washing box body 1. A circulation component 124 is provided at the bottom end of the spherical pipe 122. An automatic switching mechanism 125 is disposed through the inside of the spherical pipe 122. The circulation component 124 includes a circulation air pipe 1243 communicated with the bottom end of the spherical pipe 122. Both sides of the circulation air pipe 1243 are communicated with a branch air pipe 1241. One end of each branch air pipe 1241 penetrates into the inside of the water washing chamber 3. One end of each branch air pipe 1241 is uniformly communicated with a one-way pipe 1242. One end of each one-way pipe 1242 is connected to one end of an adjacent air inlet head 953; Specifically, as Figure 4 、 Figure 13 shown, in conventional technical means or what is easily thought of, a lead screw or a gear, etc. is used to realize the rotation of the ball valve 1251. However, in this method, a preset time interval is required to realize the flipping and resetting of the ball valve 1251, and its control cost increases. By utilizing the reciprocating detection of the pressure detection component 83 for the moving effect, the sprayed water flow of the spray head 95 forms two modes to work together under the action of gas penetration. The water foam is used to increase the wetting of the stains, and the water column is used to improve the scouring of the stains. The two are combined to achieve efficient cleaning of the stains and at the same time realize the recycling of the drying hot air; The automatic switching mechanism 125 includes a connecting rod 1253 penetrating through one side of the spherical pipe 122. One end of the connecting rod 1253 is fixed with a ball valve 1251. An L-shaped channel 1252 is formed inside the ball valve 1251. The other end of the connecting rod 1253 penetrates into the inside of the water washing chamber 3. One end of the connecting rod 1253 is connected to the top end of the electric guide roller 7 through a bearing seat. A rotation guiding component 1254 and a resetting component 1255 are respectively disposed on the outer side of the connecting rod 1253; The rotation guiding assembly 1254 includes a special-shaped guiding groove 12541 formed on the outer side of the connecting rod 1253. One side of the sliding frame 81 below the special-shaped guiding groove 12541 is rotatably connected to a rotation guiding rod 12542. The top end of the rotation guiding rod 12542 penetrates into the interior of the special-shaped guiding groove 12541. One side of the rotation guiding rod 12542 is connected to a spring B 12543. One end of the spring B 12543 is fixedly connected to the side wall of the sliding frame 81. When the rotation guiding rod 12542 moves left and right along with the sliding frame 81, it will drive the connecting rod 1253 to rotate by 180°. The reset assembly 1255 includes a movable magnetic plate 12551 fixed on the outer side of the connecting rod 1253. A fixed ring 12552 is fixed on the outer side of the tube 122 outside the movable magnetic plate 12551. A spring C 12553 is connected between the inner side wall of the fixed ring 12552 and the movable magnetic plate 12551. A magnetic block 12554 is fixed on the inner side wall of the fixed ring 12552 close to the spring C 12553. The magnetic block 12554 and the movable magnetic plate 12551 are magnetically fixed to each other; Specifically, as Figures 11 - 13 shown, by using the arc-shaped groove connecting the two straight grooves in the special-shaped guiding groove 12541 and matching the special structure of the annular groove at the farthest end, during the reciprocating movement of the rotation guiding rod 12542, the connecting rod 1253 can be flipped only in a certain one-way movement stage 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 in the drying chamber 4.

[0021] Working principle: In this embodiment, during use, the sprayed water flow of the nozzle 95 falls into the collection tank 102 and enters the water flow filter 107 for filtration treatment. Then, the water pump 104 is started to make the filtered water flow pass through the water adding valve pipe 103 and enter the shunt pipe 105 for shunting. Then, it passes through the heat exchange coil pipe 106 and exchanges heat with the hot air inside the drying rod 11 and the drying chamber 4, so that the water flow in the heat exchange coil pipe 106 is heated and sprayed out through the precise spraying mechanism 9, and the water flow at a certain temperature is used to increase the cleaning ability for stains; Start the air extraction pump inside the moisture exhaust mechanism 12, so that the air extraction pipe 121 discharges the dried moisture in the drying chamber 4 into the exhaust pipe 123 through the L-shaped channel 1252 and discharges it outward. During the elongation stage of the telescopic cylinder A82, since the sliding frame 81 synchronously drives the rotating guide rod 12542 to move horizontally, the top of the rotating guide rod 12542 slides inside the special-shaped guide groove 12541 and drives the connecting rod 1253 to turn 180 degrees. At this time, due to the turning of the connecting rod 1253, the L-shaped channel 1252 turns synchronously, so that the steam in the air extraction pipe 121 enters the sub-air pipe 1241 through the circulating air pipe 1243, and flows along the one-way pipe 1242 and the air inlet head 953 into the rear pipe 951 to be mixed with the water flow. That is, during the detection stage of the one-way movement of the pressure detection component 83, the nozzle 95 sprays water foam, which increases the wetting effect on the stains on the lead frame and realizes the secondary utilization effect of the steam at the same time; 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, it drives the connecting rod 1253 to rotate in the reverse 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 resets and moves back, since the straight groove connected to the annular groove in the rotating guide assembly 1254 is at the uppermost position at this time, and the rotating guide rod 12542 is at the bottom end, when the rotating guide rod 12542 resets, it abuts against the side wall of the annular groove and turns, stretching the spring B12543, so that the rotating guide rod 12542 slides along the outer wall of the connecting rod 1253 until it resets. That is, when the sliding frame 81 resets and moves back, the nozzle 95 sprays a water column to clean the surface of the lead frame.

[0022] The technical scope of the present invention is not limited to the content described above. 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 water washing device based on multi-dimensional perception, characterized in that, Including: A water-washing box body, inside which a detection chamber, a water-washing chamber, and a drying chamber are respectively arranged. The detection chamber, the water-washing chamber, and the drying chamber are adjacent and communicated in sequence. A bottom guide frame penetrates through the detection chamber, the water-washing chamber, and the drying chamber. Electric guide rollers are evenly installed inside the water-washing box body above the bottom guide frame and are arranged oppositely. Industrial cameras are arranged at the centers of both sides inside the detection chamber. An on-line detection mechanism is arranged inside the water-washing chamber, and the on-line detection mechanism is located between the electric guide rollers and the bottom guide frame. Precision spraying mechanisms are arranged on the inner walls of the water-washing chamber on both outer sides of the on-line detection mechanism. Drying rods are evenly arranged on both side walls of the drying chamber. An air filter is connected to the outside of the drying chamber. A control device is arranged on one side of the water-washing box body. A main processing module is arranged 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 a strength comparison module. One end of the strength comparison module is signal-connected to the electric guide rollers. The precision spraying mechanism includes a four-way pipe fixed on the inner wall of the water-washing chamber. Flow control valves are installed at the water outlet ends of the four-way pipe and are respectively communicated with hoses. Nozzles are arranged at one ends of the hoses. Fixed sliding sleeves are fixed outside the nozzles. Guide frames are fixed at equal intervals on the inner wall of the detection chamber. The outer sides of the tops of the nozzles are inserted into the inside of the guide frames for sliding. Telescopic cylinders B are installed on one sides of the fixed sliding sleeves close to the four-way pipe. One ends of the telescopic cylinders B are fixed to the inner wall of the detection chamber. One end of the telescopic cylinder B is signal-connected to the coordinate establishment module.

2. The lead frame water washing device based on multi-dimensional perception according to claim 1, characterized in that: The nozzle includes a rear pipe fixed at one end of the hose. An air inlet head penetrates through one side of the rear pipe. A rotating head is rotatably connected to the front end of the rear pipe. Rotating pipes are rotatably connected to the outside of the rotating head at equal intervals. An angle adjustment component is jointly connected to the front ends of the rotating pipes. The inner side of the angle adjustment component is fixedly connected to the center of the front end of the rotating head.

3. The lead frame water washing device based on multi-dimensional perception according to claim 2, characterized in that: The rear pipe includes a main body. The water inlet end of the main body is communicated with an inner pipe. One end of the inner pipe extends into the inside of the main body. A guide vane is connected between the inner pipe and the inner cavity of the main body. Openings are equally spaced at the front end of the inner pipe. The air inlet head is located between the water inlet of the main body and the guide vane. The rotating pipe includes a ball head embedded inside 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 communicated with a rotating rod. Nozzles are arranged at equal intervals on one side of the rotating rod. The angle adjustment component 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. A plurality of hinge plates are rotatably connected to the outside of the movable head. One end of the hinge plate is rotatably connected to one side of the adjacent rotating rod.

4. The lead frame water washing device based on multi-dimensional perception according to claim 3, characterized in that: Three nozzles are arranged on the rotating rod. The three nozzles are in the same plane, and the included angle between this plane and the rotating rod is 30°. The spraying angles of the three nozzles gradually expand from the inside to the outside.

5. The lead frame water washing device based on multi-dimensional perception according to claim 1, characterized in that: The on-line detection mechanism includes a sliding frame slidably mounted on the top of an electric guide roller located inside the water washing chamber. One side of the sliding frame is provided with a telescopic cylinder A, and 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 in signal connection with the flow control valve; the pressure detection components include a detection plate, and a plurality of probes are slidably penetrated through the inner side of the detection plate at equal intervals. 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 walls of the detection plate opposite to the probes. Elastic rods are fixed to the inner ends of the probes. In the initial state, the elastic rods are in contact with the pressure sensors but apply extrusion pressure. The number of pressure sensors is a multiple of three, and the flow control valve is in signal connection with the adjacent pressure sensors.

6. The lead frame water washing device based on multi-dimensional perception according to claim 5, characterized in that: A scraping brush plate is rotatably connected to one side of the pressure detection component. The scraping brush plate is located at the lead frame inlet side in the water washing chamber. A flipping component is arranged at the top of the scraping brush plate. The flipping component includes a telescopic reset plate fixed to the top of the scraping brush plate near one side of the electric guide roller. A guiding cross plate is fixed to the outer side of the electric guide roller beside the telescopic reset plate. One side of the telescopic reset plate close to the guiding cross plate is an inclined surface. When the pressure detection component moves horizontally, the telescopic reset plate and the guiding cross plate are alternately in contact and separated.

7. The lead frame water washing device based on multi-dimensional perception according to claim 1, characterized in that: A circulating mechanism is arranged at the bottom end inside the water washing chamber. The circulating mechanism includes a water tank fixed to the bottom end of the water washing chamber. A water flow filter is arranged inside the water tank. A collection tank is fixed to the top of the water tank. The bottom end of the collection tank is communicated with the top end of the water flow filter. A water pump is fixed to the bottom end of the drying chamber. A water adding valve pipe is communicated 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 communicated with a shunt pipe. Both water outlet ends of the shunt pipe are communicated with heat exchange coils. The heat exchange coils are fixed between the adjacent drying rods and the inner wall of the drying chamber. The water outlet ends of the heat exchange coils are respectively fixed to one end of the adjacent four-way pipe. A return channel is fixed directly below the bottom guiding frame inside the drying chamber. One side of the return channel is communicated with the collection tank.

8. The wire lead frame water washing device based on multi-dimensional perception according to claim 2, characterized in that: A moisture exhaust mechanism is arranged at the top end inside the drying chamber. The moisture exhaust mechanism includes an exhaust pipe. One end of the exhaust pipe is provided with a spherical pipe. The top end of the spherical pipe is communicated with an exhaust duct. The top end of the exhaust duct extends to the outside of the water washing box body. A circulating component is arranged at the bottom end of the spherical pipe. An automatic switching mechanism is arranged through the inside of the spherical pipe. The circulating component includes a circulating air pipe communicated with the bottom end of the spherical pipe. Both sides of the circulating air pipe are communicated with branch air pipes. One end of each branch air pipe penetrates to the inside of the water washing chamber. One end of each branch air pipe is uniformly communicated with a one-way pipe. One end of the one-way pipe is connected to one end of the adjacent air inlet head.

9. The lead frame water washing device based on multi-dimensional perception according to claim 8, characterized in that: The automatic switching mechanism includes a connecting rod penetrating through one side of the tube. One end of the connecting rod is fixed with a ball valve. An L-shaped channel is opened inside the ball valve. The other end of the connecting rod penetrates into the inside of the water washing cavity. One end of the connecting rod is connected to the top end of an electric guide roller through a bearing seat. A rotation guiding assembly and a reset assembly are respectively arranged on the outer side of the connecting rod.

10. The lead frame water washing device based on multi-dimensional perception according to claim 9, characterized in that: The rotation guiding assembly includes a special-shaped guiding groove opened on the outer side of the connecting rod. One side of a sliding frame below the special-shaped guiding groove is rotatably connected with a rotation guiding rod. The top end of the rotation guiding rod penetrates into the inside of the special-shaped guiding groove. One side of the rotation guiding rod is connected with a spring B. One end of the spring B is fixedly connected to the side wall of the sliding frame. When the rotation guiding rod drives the sliding frame to move left and right, it will drive the connecting rod to rotate 180°. The reset assembly includes a movable magnetic plate fixed on the outer side of the connecting rod. A fixed ring is fixed on the outer side of the tube outside the movable magnetic plate. A spring C is connected between the inner side wall of the fixed ring and the movable magnetic plate. A magnetic block is fixed on the inner side wall of the fixed ring close to the spring C. The magnetic block and the movable magnetic plate are magnetically fixed to each other.

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