Conveying line for removing flash of high-density integrated circuit lead frame

Abstract

The utility model relates to the technical field of lead frame flash removing equipment, in particular to a high-density integrated circuit lead frame flash removing conveying line which comprises a supporting frame. A first water washing tank for carrying out first water washing on the soaked and softened lead frame and a second water washing tank for carrying out second water washing on the lead frame are sequentially arranged on the support frame in a connection manner; the high-pressure flash removal tank is used for spraying water to the cleaned lead frame at high pressure to remove flash; the drying tank is used for drying the lead frame subjected to flash removal; limiting mechanisms enabling the lead frame to be conveyed in a linear mode in the conveying process are arranged in the first water washing tank, the second water washing tank, the high-pressure flash removing tank and the drying tank. Under the cooperation of the mechanisms, the automatic flash removing treatment of the lead frame is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of lead frame overflow removal equipment, in particular to a transportation line for overflow removal of a high-density integrated circuit lead frame. Background Art

[0002] In the integrated circuit manufacturing process, the leadframe is a key component that connects the chip to the external circuitry. Its surface quality directly impacts the final packaging and product reliability. However, during the leadframe molding process, the gap between the mold and the leadframe, as well as the fluidity of the molding material, often results in flash on the leadframe surface. This flash primarily consists of black adhesive residue and a transparent waxy substance. If this flash is not thoroughly removed during subsequent processing, it can severely impact the uniformity and adhesion of the electroplating layer, leading to a range of issues such as exposed copper, plating smearing, and poor solderability.

[0003] Currently, the industry primarily uses traditional methods for removing flash, including mechanical sandblasting, alkaline electrolysis, and chemical immersion. While mechanical sandblasting is relatively inexpensive, it can easily damage the lead frame surface and pins, and is inefficient. Alkaline electrolysis removes flash through electrolysis, but is time-consuming and inefficient. Chemical immersion involves softening the flash with a chemical solution before rinsing it away. However, existing rinsing and removal equipment cannot fully automatically remove the lead frame, and during the rinsing and removal process, existing rinsing and removal equipment cannot limit the lead frame, resulting in low removal accuracy. Therefore, a high-density integrated circuit lead frame flash removal conveyor line is provided to address the aforementioned technical issues. Utility Model Content

[0004] The purpose of the utility model is to provide a high-density integrated circuit lead frame overflow removal conveyor line to address the deficiencies in the prior art, so as to solve the technical problems that the existing flushing and removal equipment cannot fully automatically flush and remove the lead frame and the removal accuracy is not high.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A conveying line for removing overflow from lead frames of high-density integrated circuits includes a support frame on which are sequentially connected a first water washing tank for washing the lead frames after soaking and softening for the first time, a second water washing tank for washing the lead frames for the second time, a high-pressure overflow removal tank for spraying high-pressure water to remove overflow from the washed lead frames, and a drying tank for drying the lead frames after the overflow is removed; a limiting mechanism is provided inside the first water washing tank, the second water washing tank, the high-pressure overflow removal tank, and the drying tank to ensure that the lead frames are transported in a straight line during the transportation process.

[0007] The beneficial effects of the present invention are as follows: after the lead frame is soaked in the soaking tank for a specified time, it is first transported to the first water washing tank for the first water washing, and then transported to the second water washing tank for the second water washing. After the two water washings, the lead frame can fully remove the liquid medicine on the surface of the lead frame, thereby improving the liquid medicine removal effect; after the lead frame has undergone the second water washing, it is transported to the high-pressure de-spill tank, and the spillage on the upper and lower surfaces of the lead frame is accurately sprayed away by high-pressure water spraying. The water pressure of the high-pressure water spraying ranges from 0 to 500 kg, and the corresponding water spraying pressure can be adjusted according to the lead frame model, so that the spillage can be sprayed away without damaging the lead frame; after the spillage on the lead frame is sprayed away, it is transported to the drying tank, and the water stains remaining on the lead frame surface are dried. After the drying is completed and the lead frame is transported out of the drying tank, it is finally loaded with a magazine. With the cooperation of the above-mentioned mechanisms, the automatic de-spillage treatment of the lead frame is realized.

[0008] In addition, the limiting mechanism enables the lead frame to be transported in a straight line and horizontally within the transport line, thereby improving the accuracy of removing overflow materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0010] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0011] Figure 3 This is a structural diagram of the first water washing tank of the utility model.

[0012] Figure 4 It is a structural schematic diagram of the liquid removal mechanism of the utility model.

[0013] Figure 5 It is a structural diagram of the limiting mechanism of the utility model.

[0014] Figure 6 This is a schematic structural diagram of the high-pressure overflow removal trough of the utility model.

[0015] Figure 7 It is a partial structural diagram of the high-pressure overflow removal trough of the utility model.

[0016] Figure 8 This is a schematic structural diagram of a drying tank according to the present invention.

[0017] Reference numerals include:

[0018] 824, liquid removal mechanism; 8241, fixing frame; 8242, feed port; 8243, first support plate; 8244, first lower roller; 8245, first upper roller; 8246, discharge port; 8247, first upper air knife; 8248, first lower air knife; 8249, first liquid drain pipe;

[0019] 1001, support frame; 1002, first water washing tank; 10021, rinsing chamber; 10022, first blow-off chamber; 10023, second support plate; 10024, second upper roller; 10025, second lower roller; 10026, upper spray pipe; 10027, lower spray pipe; 10028, second upper air knife; 10029, second lower air knife; 1003, second water washing tank; 1004, high-pressure overflow removal tank; 10041, overflow removal chamber; 1 0042, second blow-off chamber; 10043, third support plate; 10044, third lower roller; 10045, third upper roller; 10046, mounting block; 10047, first mounting frame; 10048, first high-pressure nozzle; 10049, lower stop roller; 100410, mounting seat; 100411, second high-pressure nozzle; 100412, second mounting frame; 100413, upper stop roller; 100414, third upper air knife; 1004 15. Third lower air knife; 1005. Drying trough; 10051. Outer trough; 10052. Inner trough; 10053. Fourth support plate; 10054. Fourth upper roller; 10055. Fourth lower roller; 10056. Upper hot air knife; 10057. Lower hot air knife; 1006. Trough cover; 1007. Drive unit; 10071. Fixing plate; 10072. Drive shaft; 10073. First bevel gear; 10074. Second bevel gear; 10075. Driven wheel; 10076, driving wheel; 10077, power component; 1008, limiting mechanism; 10081, fixed frame; 10082, supporting cross bar; 10083, fixed shaft; 10084, limiting roller; 10085, movable cross bar; 10086, first connecting frame; 10087, second connecting frame; 10088, guide bar; 1009, right-angle steering gear; 10010, screw rod; 10011, connecting shaft; 10012, control component. DETAILED DESCRIPTION

[0020] The following is a detailed description of the high-density integrated circuit lead frame deburring transportation line of the present invention with reference to the accompanying drawings.

[0021] like Figure 1-2As shown, an embodiment of the conveying line for de-overflowing the lead frame of a high-density integrated circuit of the present invention includes a support frame 1001, on which are sequentially installed a first water washing tank 1002 for performing a first water washing on the lead frame after soaking and softening, a second water washing tank 1003 for performing a second water washing on the lead frame, a high-pressure de-overflowing tank 1004 for spraying high-pressure water to de-overflow the cleaned lead frame, and a drying tank 1005 for drying the lead frame after de-overflowing. The first water washing tank 1002, the second water washing tank 1003, the high-pressure de-overflowing tank 1004 and the drying tank 1005 are connected in sequence, and a de-liquidation mechanism 824 for de-liquiding the surface of the lead frame after soaking is installed at the feed end of the first water washing tank 1002.

[0022] Specifically, after the lead frame is soaked in the soaking tank for a specified time, the overflow on the lead frame will become soft, and then the soaked lead frame is pushed into the liquid removal mechanism 824 to blow off the residual liquid on the lead frame. After the blowing is completed, it is first transported to the first water washing tank 1002 for the first water washing, and then transported to the second water washing tank 1003 for the second water washing. After two water washings, the liquid on the surface of the lead frame can be fully removed, further improving the liquid removal effect of the liquid; after the lead frame has undergone the second water washing, , and then transport it to the high-pressure overflow removal tank 1004, and use high-pressure water spraying to accurately spray off the overflow on the upper and lower surfaces of the lead frame. The water pressure of the high-pressure water spray is 0-500 kg. The corresponding water spray pressure is adjusted according to different types of lead frames, so that the overflow can be sprayed off without damaging the lead frame; after the overflow on the lead frame is sprayed off, it is transported to the drying tank 1005 to dry the water stains remaining on the surface of the lead frame. After drying is completed and transported out of the drying tank 1005, the final magazine loading process is carried out.

[0023] In addition, slot covers 1006 are placed at the top notches of the first water washing tank 1002, the second water washing tank 1003, the high-pressure de-spill tank 1004, and the drying tank 1005. These slot covers 1006 are used to cover the notches of the aforementioned tanks to prevent the lead frames from being closed during the water washing, high-pressure de-spill, and drying processes. Limiting mechanisms 1008 are provided within the first water washing tank 1002, the second water washing tank 1003, the high-pressure de-spill tank 1004, and the drying tank 1005 to limit the position of the lead frames during transportation. These limiting mechanisms 1008 ensure that the lead frames are transported linearly and horizontally within the transport line, improving the accuracy of de-spill.

[0024] like Figure 3As shown, the first water washing tank 1002 is provided with a rinsing chamber 10021 and a first blow-off chamber 10022 arranged parallel to and connected to the rinsing chamber 10021. Second support plates 10023 are provided in both the rinsing chamber 10021 and the first blow-off chamber 10022. Each second support plate 10023 is provided with a plurality of first roller modules for horizontally transporting the lead frames. A certain gap is provided between the first roller modules to facilitate water washing and liquid removal of the lead frames. Furthermore, an upper spray pipe 10026 for rinsing the top surface of the lead frames and a lower spray pipe 10027 for rinsing the bottom surface of the lead frames are installed in the rinsing chamber 10021. The upper spray pipe 10026 and the lower spray pipe 10027 cooperate to rinse the lead frames during horizontal transport, thereby removing residual liquid from the lead frame surfaces. In addition, a second upper air knife 10028 and a second lower air knife 10029 are installed on the second support plate 10023 in the first blowing chamber 10022 for removing water stains on both surfaces of the lead frame; the flushed lead frame is transported to the first blowing chamber 10022 by the first roller module in the flushing chamber 10021, and then the lead frame is transported by the first roller module in the first blowing chamber 10022. During the transportation process, the lead frame will pass between the second upper air knife 10028 and the second lower air knife 10029, and the second upper air knife 10028 and the second lower air knife 10029 will respectively blow away the water stains remaining on both surfaces of the lead frame to realize automatic liquid removal processing.

[0025] Furthermore, the first roller module includes a second upper roller 10024 and a second lower roller 10025, both axially arranged horizontally and rotatably mounted on a second support plate 10023. The axes of the second upper roller 10024 and the second lower roller 10025 are perpendicular to the conveying direction of the lead frame. After the liquid removal mechanism 824 removes the residual liquid from the surface of the lead frame, the lead frame is conveyed between the second upper roller 10024 and the second lower roller 10025. The second upper roller 10024 and the second lower roller 10025 are driven to rotate to convey the lead frame horizontally. The first water washing tank 1002 and the second water washing tank 1003 have the same structure and operate in the same manner. The lead frame first passes through the first water washing tank 1002 and then the second water washing tank 1003 for a secondary water washing process.

[0026] like Figure 3-4As shown, the liquid removal mechanism 824 includes a fixed frame 8241 and a first support plate 8243 fixedly arranged inside the fixed frame 8241, and a plurality of second roller modules for horizontally conveying the soaked lead frame are installed on the first support plate 8243. A feed port 8242 and a discharge port 8246 are formed on the fixed frame 8241 to facilitate the soaked lead frame to pass through the second roller module, and the discharge port 8246 is connected to the flushing chamber 10021; the soaked lead frame enters the fixed frame 8241 from the feed port 8242 to pass through the second roller module, and the second roller module horizontally conveys the lead frame, and then comes out from the discharge port 8246 to enter the flushing chamber 10021 for flushing.

[0027] Furthermore, a first upper air knife 8247 and a first lower air knife 8248 for removing the liquid soaked on both surfaces of the lead frame are installed on the first support plate 8243. When the second roller module is transporting the lead frame, it will pass between the first upper air knife 8247 and the first lower air knife 8248, and use the first upper air knife 8247 and the first lower air knife 8248 to blow away the liquid on both surfaces of the lead frame respectively, thereby achieving liquid removal. The blown-away liquid will gather at the bottom of the fixed frame 8241. In order to recycle the gathered liquid, a first drain pipe 8249 for discharging and recycling the liquid is provided at the bottom of the fixed frame 8241.

[0028] The second roller module includes a first lower roller 8244 and a first upper roller 8245 which are axially arranged horizontally and rotatably set on the first support plate 8243. The axial directions of the first lower roller 8244 and the first upper roller 8245 are perpendicular to the discharge direction of the lead frame. After the soaked lead frame is pushed between the first lower roller 8244 and the first upper roller 8245, the first lower roller 8244 and the first upper roller 8245 are driven to rotate to transport the lead frame horizontally, so as to facilitate liquid removal.

[0029] like Figure 5As shown, the limiting mechanism 1008 includes a fixed frame 10081 for support, and the fixed frame 10081 is provided with a support cross bar 10082 and a movable cross bar 10085 whose length direction is parallel to the conveying direction of the lead frame. The support cross bar 10082 is fixedly set on the fixed frame 10081, and the movable cross bar 10085 is horizontally movably set on the fixed frame 10081. The movable direction of the movable cross bar 10085 is perpendicular to the conveying direction of the lead frame, so as to facilitate the adjustment of the distance between the support cross bar 10082 and the movable cross bar 10085. Among them, a number of axially vertically arranged fixed shafts 10083 are provided on the supporting cross bar 10082 and the movable cross bar 10085, and the several fixed shafts 10083 are arranged in a row along the conveying direction of the lead frame, and a limiting roller 10084 for limiting the lead frame during the conveying process is rotatably provided at the bottom end of each fixed shaft 10083. The limiting roller 10084 on the supporting cross bar 10082 cooperates with the limiting roller 10084 on the movable cross bar 10085 to limit the two sides of the lead frame during the conveying process, so that the lead frame is conveyed in a straight line to improve the accuracy of de-overflowing; and, by controlling the distance between the supporting cross bar 10082 and the movable cross bar 10085, the distance between the limiting rollers 10084 on both sides is controlled to adapt to lead frames of different sizes.

[0030] Preferably, in order to control the movable cross bars 10085 placed in the first water washing tank 1002, the second water washing tank 1003, the high pressure overflow removal tank 1004 and the drying tank 1005 to move simultaneously on the fixed frame 10081, right-angle diverters 1009 are installed on the outside of the first water washing tank 1002, the second water washing tank 1003, the high pressure overflow removal tank 1004 and the drying tank 1005, and each right-angle diverter 1009 is equipped with a screw rod 10010 with an axial direction horizontally arranged and perpendicular to the conveying direction of the lead frame, and each screw rod 10010 is respectively connected to a different movable cross bar 100 85 threaded connection, and each right-angle diverter 1009 is connected by a connecting shaft 10011; when one of the connecting shafts 10011 is driven to rotate, all the right-angle diverters 1009 can be driven to operate simultaneously, thereby driving the screw rods 10010 to rotate synchronously, thereby controlling the movable cross bars 10085 placed in the first water washing tank 1002, the second water washing tank 1003, the high-pressure overflow removal tank 1004, and the drying tank 1005 to move simultaneously on the fixed frame 10081, thereby achieving simultaneous adjustment of the distance between different support cross bars 10082 and the movable cross bars 10085. In addition, a control component 10012 is provided for driving the connecting shafts 10011 to rotate, under the action of the control component 10012, the distance between the support cross bars 10082 and the movable cross bars 10085 can be automatically adjusted.

[0031] Additionally, a first connecting frame 10086 is mounted on the support crossbar 10082 disposed within the rinsing chamber 10021, and a second connecting frame 10087 is mounted on the movable crossbar 10085 disposed within the rinsing chamber 10021. Both the first connecting frame 10086 and the second connecting frame 10087 extend into the fixed frame 8241. Guide bars 10088 are mounted on the first connecting frame 10086 and the second connecting frame 10087 for limiting the position of the lead frame passing through the feed port 8242. The guide bars 10088 on both sides are arranged in an "eight" shape, with the larger opening facing the feed port 8242. Due to the limiting action of the guide bars 10088 on both sides, the lead frame positioned between the first lower roller 8244 and the first upper roller 8245 and the lead frame positioned between the second upper roller 10024 and the second lower roller 10025 are aligned.

[0032] like Figure 6-7 As shown, the interior of the high-pressure de-filling tank 1004 is provided with an de-filling chamber 10041 and a second blowing chamber 10042 arranged side by side with and in communication with the de-filling chamber 10041, and a third support plate 10043 is provided in the de-filling chamber 10041 and the second blowing chamber 10042, and each third support plate 10043 is provided with a plurality of third roller modules for horizontally conveying the lead frame, and a certain gap is provided between the third roller modules to facilitate high-pressure water spraying de-filling and liquid removal treatment of the lead frame during the conveying process. Among them, a plurality of first mounting frames 10047 are installed in the overflow removal chamber 10041 through the mounting block 10046, and a plurality of first high-pressure nozzles 10048 arranged downward and used for spraying the overflow on the lead frame are installed on each first mounting frame 10047. The first high-pressure nozzles 10048 are aligned with the gap between the third roller modules, and a lower stop roller 10049 is rotatably provided on the third support plate 10043 and is placed directly below the first high-pressure nozzles 10048 and used to support the lead frame during the spraying process. The lower stop roller 10049 is arranged horizontally. The lead frame is horizontally transported by the third roller module, and cooperates with the first high-pressure nozzles 10048 on the first mounting frame 10047 to perform high-pressure spraying on the top surface of the lead frame during transportation to remove overflow. Since the water pressure sprayed by the first high-pressure nozzle 10048 is between 0 and 500 kg, the lead frame is supported during the spraying process by the lower stop roller 10049 to offset the water pressure sprayed by the first high-pressure nozzle 10048, thereby preventing damage to the lead frame during the process of removing overflow.

[0033] In addition, a plurality of mounting seats 100410 are provided at the bottom of the overflow removal chamber 10041, and a second high-pressure nozzle 100411 arranged upward and used to spray out the overflow on the lead frame is installed on each mounting seat 100410. The first high-pressure nozzle 10048 is also aligned with the gap between the third roller modules. The number of second mounting brackets 100412, which is the same as the number of mounting brackets 100410, is installed on the inner side wall of the overflow removal chamber 10041 through the mounting block 10046. 00412 is rotatably provided with upper stop rollers 100413, each positioned directly above a different second high-pressure nozzle 100411. The upper stop rollers 100413 are positioned above the lead frame during the spraying process. The upper stop rollers 100413 are arranged horizontally, with their axes perpendicular to the conveying direction of the lead frame. The upper stop rollers 100413 support the lead frame during the spraying process to offset the water pressure sprayed from the second mounting frame 100412, preventing damage to the lead frame during the overflow removal process. The lead frame is horizontally conveyed by a third roller module, which cooperates with the first and second high-pressure nozzles 10048 and 100411 to perform high-pressure spraying on the top and bottom surfaces of the lead frame during transport to remove overflow.

[0034] A third upper air knife 100414 and a third lower air knife 100415 for removing water stains on both surfaces of the lead frame are installed on the third support plate 10043 in the second blowing chamber 10042; the lead frame from which the overflow has been removed is transported to the second blowing chamber 10042 through the third roller die in the overflow removal chamber 10041, and then transported through the third roller die in the second blowing chamber 10042. During the transportation process, the lead frame will pass between the third upper air knife 100414 and the third lower air knife 100415, and the third upper air knife 100414 and the third lower air knife 100415 will respectively blow away the water stains remaining on both surfaces of the lead frame to achieve automatic liquid removal processing.

[0035] Furthermore, the third roller module includes a third lower roller 10044 and a third upper roller 10045, which are arranged horizontally and rotatably on a third support plate 10043. The axes of the third lower roller 10044 and the third upper roller 10045 are perpendicular to the conveying direction of the lead frame. After the second washing tank 1003 rinses the residual liquid on the surface of the lead frame and conveys it between the third lower roller 10044 and the third upper roller 10045, the third lower roller 10044 and the third upper roller 10045 are driven to rotate to convey the lead frame horizontally. In addition, the lower stop roller 10049 and the third lower roller 10044 are on the same horizontal plane, and the upper stop roller 100413 and the third upper roller 10045 are on the same horizontal plane.

[0036] like Figure 8 As shown, the drying tank 1005 includes an outer tank 10051 and an inner tank 10052 arranged in the outer tank 10051, and a fourth support plate 10053 is installed inside the inner tank 10052. The fourth support plate 10053 is provided with a plurality of fourth roller modules for horizontally conveying the lead frame. A certain gap is provided between the fourth roller modules to facilitate drying the lead frame during the conveying process. The fourth support plate 10053 is equipped with a plurality of upper hot air knives 10056 and lower hot air knives 10057 for drying the lead frame after the overflow is removed. After the lead frame is transported to the inner tank 10052 by the third roller die in the second blow-off chamber 10042 and then transported by the fourth roller die, the lead frame passes between the upper hot air knives 10056 and the lower hot air knives 10057 during the transportation process. The upper hot air knives 10056 and the lower hot air knives 10057 are used to dry out any residual water stains on the two surfaces of the lead frame, respectively, achieving automatic drying. In addition, the provision of the outer tank 10051 and the inner tank 10052 achieves thermal insulation and improves drying efficiency.

[0037] Furthermore, the third roller module and the fourth roller module have the same structure and operate in the same manner. The fourth roller module includes a fourth upper roller 10054 and a fourth lower roller 10055, which are arranged horizontally and rotatably mounted on a fourth support plate 10053. The axes of the fourth upper roller 10054 and the fourth lower roller 10055 are perpendicular to the conveying direction of the lead frame. The second roller module, the first roller module, the third roller module, and the fourth roller module are connected in sequence and are used to convey the lead frame in a linear manner.

[0038] In order to control the first lower roller 8244 and the first upper roller 8245, the second upper roller 10024 and the second lower roller 10025, the third lower roller 10044 and the third upper roller 10045, and the fourth upper roller 10054 and the fourth lower roller 10055 to rotate synchronously, the transport line also includes a driving device 1007 (such as Figure 2The driving device 1007 includes a plurality of fixed plates 10071 respectively arranged in the first water washing tank 1002, the second water washing tank 1003, the high-pressure overflow removal tank 1004 and the drying tank 1005. The fixed plate 10071 is rotatably provided with a transmission shaft 10072 whose axial direction is parallel to the conveying direction of the lead frame. A second bevel gear 10074 is installed at the end of each first lower roller 8244, each second lower roller 10025, each third lower roller 10044 and each fourth lower roller 10055, and A number of first bevel gears 10073 corresponding to the number of second bevel gears 10074 are installed on the transmission shaft 10072, and several first bevel gears 10073 are respectively engaged with different second bevel gears 10074; by driving the transmission shaft 10072 to rotate, the transmission is then transmitted through the several first bevel gears 10073 and the several second bevel gears 10074 to drive the first lower rollers 8244, the second lower rollers 10025, the third lower rollers 10044 and the fourth lower rollers 10055 to rotate synchronously.

[0039] In addition, a driving wheel 10076 is installed at the end of each first lower roller 8244, each second lower roller 10025, each third lower roller 10044 and each fourth upper roller 10054, and a driven wheel 10075 is installed at the end of each first upper roller 8245, each second upper roller 10024, each third upper roller 10045 and the fourth upper roller 10054, and several driven wheels 10075 are respectively engaged with different driving wheels 10076. When the first lower rollers 8244, the second lower rollers 10025, the third lower rollers 10044, and the fourth lower rollers 10055 are driven to rotate synchronously via the transmission shaft 10072, the first upper rollers 8245, the second upper rollers 10024, the third upper rollers 10045, and the fourth upper rollers 10054 are driven to rotate synchronously by the driven pulley 10075 and the driving pulley 10076, thereby achieving horizontal conveyance of the lead frames. To drive the transmission shaft 10072 to rotate, the drive device 1007 further includes a power component 10077 for driving the transmission shaft 10072 to rotate.

[0040] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance its performance unprecedented in the past and become a product with great practical value.

[0041] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. High-density integrated circuit lead frame de-burring transportation line, characterized by: The invention comprises a support frame (1001), on which a first water washing tank (1002) for washing a lead frame after soaking and softening for the first time, a second water washing tank (1003) for washing the lead frame for the second time, a high-pressure overflow removal tank (1004) for spraying high-pressure water to remove overflow from the washed lead frame, and a drying tank (1005) for drying the lead frame after the overflow is removed are sequentially connected. A limiting mechanism (1008) is provided inside the first water washing tank (1002), the second water washing tank (1003), the high-pressure overflow removal tank (1004) and the drying tank (1005) so that the lead frame is transported in a straight line during the transport process.

2. The high-density integrated circuit lead frame deburring transportation line according to claim 1, characterized in that: Tank covers (1006) for covering the tank bodies are placed at the top notches of the first water washing tank (1002), the second water washing tank (1003), the high-pressure overflow removal tank (1004) and the drying tank (1005).

3. The high-density integrated circuit lead frame deburring transportation line according to claim 1, characterized in that: The first water washing tank (1002) is provided with a rinsing chamber (10021) and a first blowing chamber (10022) arranged side by side with and in communication with the rinsing chamber (10021); a second support plate (10023) is provided in the rinsing chamber (10021) and the first blowing chamber (10022); and a plurality of first roller modules for horizontally conveying the lead frame are provided on each second support plate (10023); an upper spray pipe (10026) for rinsing the top surface of the lead frame and a lower spray pipe (10027) for rinsing the bottom surface of the lead frame are provided in the rinsing chamber (10021); and a second upper air knife (10028) and a second lower air knife (10029) for removing water stains on both surfaces of the lead frame are provided on the second support plate (10023) in the first blowing chamber (10022).

4. The high-density integrated circuit lead frame deburring transportation line according to claim 3, characterized in that: The first roller module includes a second upper roller (10024) and a second lower roller (10025) which are axially arranged horizontally and rotatably set on a second support plate (10023); the axial directions of the second upper roller (10024) and the second lower roller (10025) are perpendicular to the conveying direction of the lead frame.

5. The high-density integrated circuit lead frame deburring transportation line according to claim 3, characterized in that: A dewatering mechanism (824) for removing liquid from the surface of the soaked lead frame is installed at the feed end of the first water washing tank (1002); the dewatering mechanism (824) includes a fixed frame (8241) and a first support plate (8243) fixedly arranged inside the fixed frame (8241); the first support plate (8243) is equipped with a plurality of second roller modules for horizontally conveying the soaked lead frame; the fixed frame (8241) is formed with a feed port (8242) and a discharge port (8246) for facilitating the soaked lead frame to pass through the second roller module; the discharge port (8246) is connected to the washing chamber (10021); the first support plate (8243) is equipped with a first upper air knife (8247) and a first lower air knife (8248) for removing liquid from both surfaces of the soaked lead frame.

6. The high-density integrated circuit lead frame deburring transportation line according to claim 1, characterized in that: The limiting mechanism (1008) includes a fixed frame (10081), the fixed frame (10081) is provided with a supporting cross bar (10082) and a movable cross bar (10085) whose length direction is parallel to the conveying direction of the lead frame, the supporting cross bar (10082) is fixedly arranged on the fixed frame (10081), and the movable cross bar (10085) is horizontally movably arranged on the fixed frame (10081), and the movable cross bar (10085) is movable in a direction perpendicular to the conveying direction of the lead frame, and a plurality of axially vertically arranged fixed shafts (10083) are provided on the supporting cross bar (10082) and the movable cross bar (10085), and the plurality of fixed shafts (10083) are arranged in a row along the conveying direction of the lead frame, and a limiting roller (10084) for limiting the lead frame during the conveying process is rotatably provided at the bottom end of each fixed shaft (10083).

7. The high-density integrated circuit lead frame deburring transportation line according to claim 6, characterized in that: A right-angle diverter (1009) is installed on the outside of the first water washing tank (1002), the second water washing tank (1003), the high-pressure overflow removal tank (1004) and the drying tank (1005). A screw rod (10010) with an axial direction horizontally arranged and perpendicular to the conveying direction of the lead frame is installed on each right-angle diverter (1009). Each screw rod (10010) is threadedly connected to a different movable cross bar (10085), and each right-angle diverter (1009) is connected to the right-angle diverter via a connecting shaft (10011).

8. The high-density integrated circuit lead frame deburring transportation line according to claim 1, characterized in that: The high-pressure de-burst tank (1004) is provided with a de-burst chamber (10041) and a second blow-off chamber (10042) arranged side by side and in communication with the de-burst chamber (10041). A third support plate (10043) is provided in the de-burst chamber (10041) and the second blow-off chamber (10042). A plurality of third roller modules for horizontally conveying the lead frame are provided on each third support plate (10043), and gaps are provided between the third roller modules. A plurality of roller modules are installed in the de-burst chamber (10041) through a mounting block (10046). A first mounting frame (10047) is provided, and each first mounting frame (10047) is provided with a plurality of first high-pressure nozzles (10048) arranged downward and used for spraying off overflow on the lead frame, the first high-pressure nozzles (10048) are aligned with the gap between the third roller modules, and a lower stop roller (10049) is rotatably provided on the third support plate (10043) and is placed directly below the first high-pressure nozzles (10048) and used for supporting the lead frame during the spraying process, and the lower stop roller (10049) is arranged horizontally and its axial direction is perpendicular to the conveying direction of the lead frame; A plurality of mounting seats (100410) are provided at the bottom of the overflow removal chamber (10041), and each mounting seat (100410) is provided with a second high-pressure nozzle (100411) arranged upward and used for spraying out the overflow on the lead frame. The first high-pressure nozzle (10048) is also aligned with the gap between the third roller modules. The same number of mounting seats (100410) is provided on the inner side wall of the overflow removal chamber (10041) through the mounting block (10046). The second mounting frames (100412) have the same number of mounting seats (100410), and each second mounting frame (100412) is rotatably provided with an upper stop roller (100413) which is respectively placed directly above a different second high-pressure nozzle (100411). The upper stop roller (100413) is placed above the lead frame during the spraying process. The upper stop roller (100413) is arranged horizontally and its axial direction is perpendicular to the conveying direction of the lead frame.

9. The high-density integrated circuit lead frame deburring transportation line according to claim 8, characterized in that: A third upper air knife (100414) and a third lower air knife (100415) for removing water stains on both surfaces of the lead frame are installed on the third support plate (10043) in the second blowing chamber (10042).

10. The high-density integrated circuit lead frame deburring transportation line according to claim 1, characterized in that: The drying tank (1005) includes an outer tank (10051) and an inner tank (10052) arranged in the outer tank (10051); a fourth support plate (10053) is installed inside the inner tank (10052); a fourth roller module for horizontally conveying the lead frame is provided on the fourth support plate (10053); and a plurality of upper hot air knives (10056) and lower hot air knives (10057) for drying the lead frame after removing the overflow are installed on the fourth support plate (10053).

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