Lead frame etching equipment integrated production line for unloading, etching and collecting

Abstract

The invention relates to the technical field of wire frame etching, and in particular to an integrated production line for unwinding, etching and collecting of lead frame etching equipment, comprising a unwinding module, an etching module and a collecting module, wherein an unwinding material tray is nested on an unwinding shaft, and during unwinding, a material tape can accurately enter a guide station and a conveying area, thereby improving the installation stability of the unwinding material tray; a drying chamber of a drying mechanism, a cleaning box of a cleaning mechanism and an etching box of an etching mechanism in the etching module are aligned and connected with each other, so that the lead frame can seamlessly enter the cleaning box from the drying chamber and then enter the etching box from the cleaning box, thereby reducing the exposure of the lead frame; the processed material tape enters the collecting box through a collecting port of the collecting box, and then a paper tape reel of a paper tape unwinding mechanism unwinds the paper tape, and after the paper tape and the material tape are conveyed by a material tape conveying mechanism, a guiding rewinding mechanism simultaneously rewinds the mutually bonded paper tape and the material tape.

Description

Technical Field

[0001] The invention relates to the technical field of lead frame etching, in particular to an integrated production line for unloading, etching and collecting lead frame etching equipment. Background Art

[0002] Integrated circuits are the core of all kinds of electronic products. They are mainly packaged by semiconductor chips and lead frames. The lead frame mainly connects the chip to the outside and is a key component in the manufacture of integrated circuits. With the development of electronic information products towards miniaturization, thinness, lightness, multi-function and intelligence, integrated circuits are developing towards large-scale integrated circuits and ultra-large-scale integrated circuits. The copper-based lead frame is developing towards high precision, fine lead spacing and multi-pin. There are two production processes for lead frames: stamping and etching.

[0003] Etching is a stress-free processing method. First, a photosensitive resist is used to protect part of the workpiece, and then a strong oxidant is used to etch away the other parts, and finally the required components are obtained. Etched lead frames are different from traditional stamped lead frames. They are made by photolithography and etching.

[0004] The etching device of the existing lead frame etching equipment generally includes an etching tank and a spray mechanism arranged above the etching tank, wherein a work surface is arranged in the etching tank, and the spray mechanism includes a spray rack, a spray pipe arranged on the spray rack for conveying etching liquid, and a plurality of nozzles connected to the spray pipe. The etching liquid is sprayed onto the surface of the workpiece placed on the work surface through the nozzle to achieve the effect of dissolving corrosion.

[0005] The existing etching device generally includes an etching tank and a spray mechanism arranged above the etching tank, wherein a work surface is arranged in the etching tank, and the spray mechanism includes a spray rack, a spray pipe arranged on the spray rack for conveying etching liquid, and a plurality of nozzles connected to the spray pipe. The etching liquid is sprayed onto the surface of the workpiece placed on the work surface through the nozzle to achieve the effect of dissolving corrosion.

[0006] However, the existing etching device has the following technical problems: the lead frame is conveyed forward by the conveying mechanism, and the spraying mechanism sprays liquid on the top and bottom surfaces of the lead frame at the same time during spraying. When the pressure of some liquids is high during spraying, the lead frame may be partially bounced and deformed, resulting in damage to the lead frame. Summary of the invention

[0007] The object of the present invention is to provide an integrated production line for unloading, etching and collecting of lead frame etching equipment in view of the deficiencies in the prior art, comprising a unloading module, an etching module and a collecting module.

[0008] To achieve the above object, the technical solution of the present invention is as follows:

[0009] An integrated production line for unloading, etching and collecting of lead frame etching equipment, including an unloading module, an etching module and a collecting module;

[0010] The unwinding module includes an unwinding area and a conveying area, the conveying area includes one or more conveying rollers for guiding and conveying the unwinding material strip forward, the height of the conveying rollers is adjustable, the unwinding area includes an unwinding base and an unwinding frame slidably mounted on the unwinding base, the unwinding frame is provided with an unwinding station for nesting the unwinding material tray and a guiding station for unwinding and conveying the unwinding material strip;

[0011] The unwinding station comprises a rotatable unwinding shaft, an adjusting sliding seat is slidably mounted on the unwinding shaft, the adjusting sliding seat is movably connected to a connecting rod, more than two expansion plates are arranged on the periphery of the unwinding shaft, the other end of the connecting rod is movably connected to the expansion plate, and the adjusting sliding seat reciprocates along the unwinding shaft to adjust the distance between the expansion plate and the unwinding shaft;

[0012] The etching module includes a drying mechanism, a cleaning mechanism and an etching mechanism. The etching mechanism includes an etching box. The etching box is provided with a through port for the lead frame to enter and exit and an etching channel for conveying the lead frame forward. An etching assembly for spraying liquid through the lead frame is arranged along the etching channel. The etching assembly includes a support member and a moving driving member for driving the support member to move back and forth. The support member is equipped with a plurality of spray heads that can spray liquid toward the lead frame.

[0013] The etching channel includes an etching conveying plate arranged along the length direction of the etching box, the etching conveying plate is provided with mounting structures at intervals along its length direction, the mounting structures are detachably provided with etching conveying rollers, and at least one mounting structure is installed with two etching conveying rollers for rolling and conveying the lead frame.

[0014] The beneficial effects of the present invention are as follows: when the unwinding material tray is nested in the unwinding shaft equipped with the expansion plate for unwinding, the unwinding material tray is not easy to deviate, the material belt can accurately enter the guide station and the transmission area, the installation stability of the unwinding material tray can be improved, and it can be applied to most unwinding material trays with different inner ring diameters, and no bolts are required for fixing, which is convenient to operate;

[0015] When the unwinding tray needs to be adjusted in position, the unwinding rack moves along the unwinding base so that the material strip of the unwinding tray is aligned with the guide station and the conveying roller of the conveying area at the same time, so that the material strip can maintain contact with the guide station and the conveying roller for transmission, which can avoid the phenomenon that the material strip cannot be contacted, prevent the material strip from being deformed and bent, and ensure the subsequent electroplating quality;

[0016] The lead frame to be etched enters the etching box through the through port, the etching channel transports the lead frame forward, the etching assembly works, a support member equipped with multiple injection heads etches the lead frame with liquid medicine, and the support member is driven to move back and forth by the movable driving member, so that the liquid medicine sprayed by the injection head can react with the lead frame more evenly, without moving the lead frame, thereby ensuring the stability of the etching process; when the etching channel moves forward, it will pass through multiple groups of etching conveying rollers arranged in a roller pressing manner, and the rolling pressing of two etching conveying rollers can prevent the lead frame from arching during the etching process, thereby improving the etching stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the lead frame etching equipment. Figure 2 It is a structural diagram of the discharge module.

[0018] Figure 3 This is a structural diagram of the discharge module from another perspective.

[0019] Figure 4 It is a structural schematic diagram of the sliding cooperation between the unloading base and the unloading frame.

[0020] Figure 5 Schematic diagram of the structure of the transmission coordination between the unloading base and the unloading rack.

[0021] Figure 6 It is a structural schematic diagram of the unwinding station. Figure 7 This is a structural schematic diagram of the unwinding station from another perspective.

[0022] Figure 8 It is a schematic diagram of the structure of the connection between the unwinding shaft and the expansion plate.

[0023] Fig. 9 It is a structural schematic diagram of the drying mechanism.

[0024] Fig.10 It is a schematic diagram of the structure of the drying component and the conveying channel.

[0025] Fig.11 This is a schematic structural diagram of the drying component and conveying channel from another perspective.

[0026] Fig.12 It is a schematic diagram of the structure in which the drying component and the conveying channel are connected.

[0027] Fig.13 It is a structural diagram of the cleaning mechanism. Fig.14 Schematic diagram of the internal structure of the flushing chamber.

[0028] Fig.15 It is a structural schematic diagram of the cooperation between the flushing channel and the flushing mechanism.

[0029] Fig.16 A schematic diagram of the structure of the viewing window. Fig.17 This is a schematic diagram of the partially enlarged structure of the flushing channel.

[0030] Fig.18 It is a structural schematic diagram of the film-removing cylinder mechanism.

[0031] Fig.19 This is a schematic diagram of the structure of one of the film stripping cylinder components.

[0032] Fig. 20 It is a schematic diagram of the structure of the drum from another perspective.

[0033] Fig.21 It is a structural schematic diagram of the etching injection mechanism.

[0034] Fig. 22 It is a schematic diagram of the structure of the etching channel and the etching component.

[0035] Fig.23 Schematic diagram of the structure of the etching component.

[0036] Fig.24 This is a schematic diagram of the locally enlarged structure of the etching channel.

[0037] Fig.25 It is a structural schematic diagram of the connection between the mobile driving member and the supporting frame.

[0038] Fig.26 It is a structural schematic diagram of the material strip paper receiving and winding mechanism.

[0039] Fig. 27 It is a structural schematic diagram of the paper tape unwinding mechanism.

[0040] Fig.28 It is a structural schematic diagram of the material belt conveying mechanism.

[0041] Fig.29 It is a structural schematic diagram of the material receiving guide mechanism.

[0042] Fig.30 It is a schematic diagram of the structure of a rolling pallet.

[0043] Fig.31 It is a schematic diagram of the structure of the rolling pressed parts.

[0044] Fig.32 It is a schematic diagram of the structure in which the rolling pressing part is connected to the top frame.

[0045] Reference numerals include:

[0046] 1-etching module, 10-drying mechanism, 11-drying room,

[0047] 111-drying inlet and outlet, 112-drying channel, 113-drying conveying plate, 114-drying conveying roller,

[0048] 12-drying assembly, 120-drying box, 121-connection pipe, 122-air outlet, 123-side support bar, 124-connection block, 125-rotation axis, 126-fitting groove, 127-top pressing block, 128-semicircular groove, 129-elastic screw,

[0049] 13-mounting member, 131-first adjusting rod, 132-second adjusting rod, 133-adjusting column,

[0050] 134-adjustment seat, 135-first adjustment hole, 136-second adjustment hole,

[0051] 2-cleaning mechanism, 21-washing room,

[0052] 210- flushing channel, 211- cleaning inlet and outlet, 212- cleaning conveying plate, 213- cleaning conveying roller,

[0053] 214-cleaning rubber roller, 215-partition plate, 216-baffle plate, 217-through slot,

[0054] 22-Installation structure,

[0055] 221-first mounting groove, 222-second mounting groove, 223-rolling bearing, 224-spur gear,

[0056] 225-transmission shaft, 226-first bevel gear, 227-second bevel gear, 228-bearing seat,

[0057] 23-flushing mechanism, 231-flushing plate, 232-flushing pipe, 233-high pressure nozzle,

[0058] 24-View Window,

[0059] 241-first inner groove, 242-second inner groove, 243-inner cover plate, 244-outer cover plate, 245-sealing strip, 246-pressing block, 247-frame plate, 248-inclined surface, 249-arc groove,

[0060] 3-film removal cylinder mechanism, 31-film removal cylinder assembly,

[0061] 311-drum, 312-liquid inlet, 313-discharge port, 314-support bracket, 315-filter cover,

[0062] 316-filter box, 317-filter channel, 318-support rotating shaft,

[0063] 32-rotating drive member, 321-outer ring sleeve, 322-fixed sleeve, 323-connecting column, 324-support guide wheel, 325-guide wheel support seat, 326-limiting plate, 327-gear ring, 328-driving motor,

[0064] 329-driving gear,

[0065] 33-spray cleaning assembly, 331-spray cleaning pipeline, 332-flushing nozzle, 333-waste collection tank,

[0066] 4- Etching mechanism, 41- Etching box,

[0067] 410-etching channel, 411-passing port, 412-etching conveying plate, 413-etching mounting structure,

[0068] 414-etched conveyor roller, 415-guide rubber roller, 416-roller sleeve,

[0069] 42-etching assembly, 421-support, 422-guide plate, 423-sliding channel, 424-support frame, 425-guide roller, 426-top liquid pipe, 427-bottom injection pipe, 428-injection head,

[0070] 43- mobile drive parts,

[0071] 431-drive shaft, 432-eccentric wheel, 433-crank block, 434-drive groove, 435-cam ball,

[0072] 436-shielding cover, 437-connecting shaft, 438-pin, 439-rotation hole,

[0073] 5-unloading module, 51-unwinding area, 511-unloading base, 512-bottom drive seat,

[0074] 513-bottom crossbeam, 514-screw seat, 515-adjusting screw, 516-bottom bearing seat,

[0075] 517-top beam,

[0076] 52-unloading rack,

[0077] 521-top drive seat, 522-support rail, 523-bottom roller, 524-roller shaft,

[0078] 525-bottom fixed seat, 526-top rolling wheel, 527-guide rail,

[0079] 53-unwinding station, 530-unwinding support seat, 531-unwinding shaft, 532-unwinding driving shaft,

[0080] 533-adjusting sliding seat, 534-moving winch, 535-connecting winch, 536-expanding guide hole,

[0081] 537-hinged bump, 538-linear bearing,

[0082] 54-Expansion plate,

[0083] 540-guide plate, 541-expansion guide rod, 542-expansion support plate, 543-expansion contact plate,

[0084] 544-connecting protrusion, 545-guide roller, 546-expansion guide groove,

[0085] 55-connecting rod, 550-unwinding motor, 551-first hinge shaft, 552-second hinge shaft,

[0086] 553-first hinge hole, 554-second hinge hole, 555-first gear, 556-second gear,

[0087] 557-guide station, 5571-feeding guide roller, 5572-mounting plate, 5573-torque motor,

[0088] 5574-reducer,

[0089] 6-Transfer area,

[0090] 61-transmission substrate, 62-transmission rack, 63-transmission exit, 64-transmission gantry,

[0091] 65-transmission roller, 66-discharging support bar,

[0092] 7- Material receiving module, 70- Material receiving box,

[0093] 710-paper tape unwinding mechanism, 711-receiving port, 712-first paper tape shaft, 713-second paper tape roller,

[0094] 714-longitudinal bracket, 715-top paper tape hole, 716-receiving bearing seat,

[0095] 72- belt conveyor mechanism,

[0096] 721-transmission bracket, 722-bottom guide roller, 723-top guide roller, 724-guide bracket,

[0097] 725-guide shaft, 726-guide wheel, 727-limiting installation shaft, 728-limiting rod,

[0098] 73-guide winding mechanism, 730-winding platform, 7310-rolling tray, 731-tray shaft,

[0099] 732-active roller, 733-driven roller, 734-tray mounting plate, 735-support bar,

[0100] 736-support mounting plate, 737-driving motor, 738-driving gear, 739-driven gear,

[0101] 74- rolling pressing part, 741- rolling pressing wheel, 742- swing plate, 743- driving part, 744- fulcrum part, 745- driven part, 746- driving shaft, 747- fulcrum shaft, 748- driven shaft,

[0102] 75-Top rack,

[0103] 751 - first frame, 752 - second frame, 753 - telescopic drive member, 754 - joint bearing. DETAILED DESCRIPTION

[0104] The present invention is described in detail below with reference to the accompanying drawings.

[0105] like Figure 1-32 As shown, the unwinding, etching and collecting integrated production line of the lead frame etching equipment includes an unwinding module, an etching module and a collecting module. The unwinding module 5 includes an unwinding area 51 and a conveying area 6.

[0106] The unwinding area 51 includes an unwinding base 511 and an unwinding frame 52 slidably mounted on the unwinding base 511 .

[0107] The material discharging base 511 includes a support rail 522 and a bottom rolling wheel 523 arranged along its width direction, and a top rolling wheel 526 rolling with the support rail 522 and a guide rail 527 rolling with the bottom rolling wheel 523 are installed at the bottom of the material discharging frame 52. The material discharging base 511 includes a pair of parallel and spaced bottom driving seats 512, and the material discharging frame 52 includes a pair of parallel and spaced top driving seats 521, and the outer wall of the top driving seat 521 is provided with a roller shaft 524 for installing the top rolling wheel 526, and the guide rail 527 is arranged along the length direction of the outer wall of the top driving seat 521, and a bottom fixed seat 525 for installing the bottom rolling wheel 523 is provided at the top of the bottom driving seat 512, and the bottom rolling wheel 523 rolls along the top surface of the guide rail 527.

[0108] The moving direction of the unloading rack 52 is perpendicular to the forward direction of the material belt. When the position of the unloading rack 52 is adjusted, the top rolling wheel 526 installed on the top driving seat 521 rolls with the support rail 522 of the bottom driving seat 512; the bottom rolling wheel 523 of the bottom driving seat 512 rolls with the guide rail 527 of the top driving seat 521. At this time, the unloading rack 52 moves in a straight path and will not shake up and down, which can improve the stability and accuracy of the movement of the unloading rack 52.

[0109] Furthermore, a bottom crossbeam 513 is provided between the two bottom drive seats 512, a top crossbeam 517 is provided between the two top drive seats 521, a screw seat 514 is installed on the bottom crossbeam 513, an adjusting screw 515 is drivingly penetrated on the screw seat 514, and a bottom bearing seat 516 for inserting the end of the adjusting screw 515 is installed on the top crossbeam 517, and the adjusting screw 515 can be rotated to make the adjusting screw 515 and the screw seat 514 of the unloading machine seat drive and drive the unloading machine frame 52 to slide along the unloading base 511 to adjust the position of the unloading machine frame 52. The unloading machine frame 52 is provided with an unwinding station 53 for nesting the unwinding material tray and a guide station 557 for unwinding and conveying the unwound material belt.

[0110] The unwinding station 53 includes an unwinding support seat 530, on which a rotatable unwinding shaft 531 is installed through a bearing seat, a bearing seat is nested at one end of the unwinding shaft 531, an unwinding driving shaft 532 is nested through a bearing on the unwinding shaft 531, the unwinding driving shaft 532 and the unwinding shaft 531 can be separated and rotated, a pair of relatively sliding adjustment sliding seats 533 are slidably installed on the unwinding shaft 531, that is, the two adjusting sliding seats 533 are close to or away from each other on the unwinding shaft 531, more than two expansion plates 54 are arranged on the periphery of the unwinding shaft 531, and a plurality of expansion plates 54 are arranged in a ring shape and equidistantly on the periphery of the unwinding shaft 531, a guide disk 540 is fixedly nested on the unwinding shaft 531 through the unwinding driving shaft 532, a connecting protrusion 544 is provided at one end of the expansion plate 54, and the guide disk 540 is provided with an expansion guide groove 546 along its radial direction for guiding the sliding of the connecting protrusion 544.

[0111] The adjusting sliding seat 533 is movably connected with a connecting rod 55, and the other end of the connecting rod 55 is movably connected with the expansion plate 54. The adjusting sliding seat 533 slides back and forth along the unwinding shaft 531 to adjust the distance between the expansion plate 54 and the unwinding shaft 531. The unwinding material tray is nested on the unwinding shaft 531 equipped with the expansion plate 54. When the unwinding material tray needs to be tightened, the adjusting sliding seat 533 moves along the unwinding shaft 531, so that the connecting rod 55 swings accordingly, and the inclined state is continuously changed to a vertical state. The expansion plate 54 will move away from the unwinding shaft 531, so that the outer wall of the expansion plate 54 abuts against the inner ring of the unwinding material tray, so that the expansion plate 54 can fix the unwinding material tray, which can improve the installation coaxiality of the unwinding material tray and can be applied to most unwinding material trays with different inner ring diameters. It does not need to be fixed with bolts, and the operation is convenient. Preferably, a plurality of expansion guide rods 541 are installed between the guide plate 540 and the bearing seat at the outer end and are located on the periphery of the unwinding shaft 531. The adjusting sliding seat 533 is provided with an expansion guide hole 536 that slides with the expansion guide rod 541. The expansion guide hole 536 is installed with a linear bearing 538. When the two adjusting sliding seats 533 approach or move away from each other on the unwinding shaft 531, they can slide in a straight line along the expansion guide rod 541, thereby improving the sliding stability.

[0112] Preferably, the connecting protrusion 544 is installed with guide rollers 545 that respectively roll with the front and back sides of the guide disk 540, one group of guide rollers 545 rolls in contact with the front side of the guide disk 540, and the other group of guide rollers 545 rolls in contact with the back side of the guide disk 540. When the position of the expansion plate 54 is adjusted, the expansion plate 54 moves radially along the unwinding shaft 531 and will not shift left and right along the axial direction, so that the unwinding material disk nested in the expansion plate 54 will not shift its position, thereby improving the quality of unwinding, and being able to accurately discharge the material to the conveying area 6, so that it can accurately enter the etching process production line for processing in subsequent transportation.

[0113] Preferably, the expansion plate 54 includes an expansion support plate 542 connected to the connecting rod 55, and an expansion contact plate 543 that can resist the unwinding disk is installed on the top of the expansion support plate 542 along its length direction, and the outer surface of the expansion contact plate 543 is an arc surface; when the expansion plate 54 moves along the radial direction of the unwinding shaft 531, the arc surface of the expansion contact plate 543 has a larger contact area with the inner ring of the unwinding material disk, so that the static friction force is larger, the tension force is increased, and the unwinding material disk is fixed more stably. The adjustment sliding seat 533 includes a mobile capstan 534 coaxially nested with the unwinding shaft 531, and the expansion guide hole 536 is formed on the mobile capstan 534. The mobile capstan 534 is formed with a connecting capstan 535, and the expansion guide hole 536 is formed through the mobile capstan 534.

[0114] The connecting capstan 535 is formed with a plurality of hinged protrusions 537 equidistantly in an annular shape and movably connected to the connecting rod 55. The hinged protrusions 537 are interspersed with a first hinge shaft 551, and one end of the connecting rod 55 is formed with a first hinge hole 553 embedded in the first hinge shaft 551. The expansion support plate 542 is penetrated with a second hinge shaft 552, and the connecting rod 55 is formed with a second hinge hole 554 embedded in the second hinge shaft 552. The expansion plate 54 is parallel to the unwinding shaft 531, and the angles between the two connecting rods 55 and the unwinding shaft 531 are the same. Therefore, one of the adjusting sliding seats 533 can be driven to move by manual pushing and pulling or cylinder extension and contraction. When the movable capstan 534 of the adjusting sliding seat 533 slides along the unwinding shaft 531, the angle of one of the connecting rods 55 changes, so that the expansion plate 54 moves radially along the unwinding shaft 531, driving the other connecting rod 55 to move at the same time, and the other movable capstan 534 moves axially along the unwinding shaft 531. The expansion plate 54 can resist the unwinding material tray nested in the unwinding shaft 531 to fix the unwinding material tray.

[0115] In one embodiment, the unwinding driving shaft 532 is provided with a first gear 555, and the unwinding shaft 531 is provided with a second gear 556. The first gear 555 and the second gear 556 are respectively driven by a chain, and the first gear 555 and the second gear 556 are respectively connected to the unwinding motor 550. The unwinding driving shaft 532 and the unwinding shaft 531 can both rotate; when the expansion plate 54 needs to be locked to the unwinding material tray, the first gear 555 or the second gear 556 rotates, and the other does not rotate. The unwinding driving shaft 532 is formed with an external thread structure, and one of the movable capstans 534 is provided with a screw sleeve that matches the thread structure, so that the movable capstan 534 matches the screw sleeve thread, and can move along the axial direction of the unwinding shaft 531, driving the expansion plate 54 to open outward to press against the unwinding material tray for locking.

[0116] Preferably, when unwinding, the first gear 555 and the second gear 556 are simultaneously driven by the chain, so that the first gear 555 and the second gear 556 rotate synchronously, and the expansion plate 54 does not move when unwinding.

[0117] After unwinding, the lead frame material strip enters the guide station 557, which includes a material unwinding guide roller 5571 arranged beside the unwinding shaft 531, and the unwinding frame is installed with a mounting plate 5572. One end of the material unwinding guide roller 5571 is installed on the mounting plate 5572 through a bearing seat, and the mounting plate 5572 is provided with a torque motor 5573 and a reducer 5574 which are transmission-connected to the material unwinding guide roller 5571. The output end of the torque motor 5573 is transmission-connected to the input end of the reducer 5574, and the output end of the reducer 5574 is installed on the mounting plate 5572. One end of the material unwinding guide roller 5571 is connected to the output end of the reducer 5574. The material unwinding guide roller 5571 is parallel to the unwinding shaft 531 and aligned in the conveying direction of the material strip. The unwinding material strip is progressively conveyed to the conveying area 56 through two material unwinding guide rollers 5571, so that the conveying efficiency of the material strip can be improved and the occurrence of dragging can be reduced.

[0118] The material belt conveyed by the material discharge guide roller 5571 enters the conveying area 6, and the conveying area 6 includes a conveying substrate 61, and a conveying frame 62 is installed on the top of the conveying substrate 61, and the conveying frame 62 is provided with a conveying outlet 63 for guiding the material belt to be discharged after conveying; a conveying gantry 64 located in the conveying frame 62 is installed on the top of the conveying substrate 61, and the conveying gantry 64 is formed by splicing and forming an aluminum profile structure, and the conveying gantry 64 is equipped with two conveying rollers 65 for guiding the material belt to be unwound forward, and height adjustment seats are installed at both ends of the conveying roller 65. The height adjustment seat is provided with a hole that matches the groove of the conveying gantry 64, so that the conveying roller 65 can be adjusted in height and installed horizontally on the conveying gantry 64, and the upper and lower sides of the conveying roller 65 are provided with material discharge support strips 66 to prevent the material belt from collapsing. The material belt enters the conveying roller 65 at the top through the bottom conveying roller 65, and then aligns with the conveying outlet 63 to facilitate material discharge.

[0119] The unwinding material tray that needs to be unwound is nested on the unwinding station 53. When the position needs to be adjusted, the unwinding frame 52 moves along the unwinding base 511, so that the unwinding station 53 and the guide station 557 on the unwinding frame 52 are aligned in the conveying direction of the material belt; the material belt of the unwinding material tray is aligned with the guide station 557 and the conveying roller 65 of the conveying area 6 at the same time, so that the material belt can maintain contact with the guide station 557 and the conveying roller 65 for transmission, which can avoid the phenomenon that the material belt cannot be contacted, prevent the material belt from deformation and bending, and ensure the subsequent electroplating quality.

[0120] The etching module 1 includes a drying mechanism 100 , a cleaning mechanism 2 and an etching mechanism 4 .

[0121] The drying mechanism 10 includes a drying chamber 11, which is provided with a drying channel 112 for progressively conveying the lead frame and a drying inlet and outlet 111 for the lead frame to pass through. The drying channel 112 includes a drying conveying plate 113 arranged along the length direction of the drying chamber 11, and the drying conveying plate 113 is equipped with a plurality of drying conveying rollers 114 arranged at intervals to support and convey the lead frame. Two adjacent drying conveying rollers 114 are arranged equidistantly, and the drying conveying rollers 114 can rotatably convey the lead frame entering the drying chamber 11. A drying assembly 12 for drying the lead frame is provided along the drying channel 112, and the drying assembly 12 is respectively arranged above and below the drying channel 112. The drying device blows hot air to the top and bottom surfaces of the conveyed lead frame for drying.

[0122] The drying assembly 12 includes a plurality of drying boxes 120 arranged at intervals along the length direction of the drying channel 112. The drying box 120 is formed with an air outlet 122 facing the lead frame. The drying box 120 is also connected to a high-temperature resistant connecting pipe 121 for easy angle adjustment. The drying channel 112 is provided with a mounting member 13 along its length direction. The mounting member 13 includes a side support bar 123. The drying box 120 is provided with a rotating adjustment member rotatably connected to the side support bar 123. When the angle of the air outlet 122 of the drying box 120 needs to be adjusted, the direction of the air outlet 122 is changed by rotating the adjusting member in coordination with the mounting member 13, and it can be changed to inclined blowing, which is beneficial to the diffusion of hot air, and the angle adjustment can be completed without replacing the drying box 120.

[0123] Preferably, the rotating adjustment member includes a connecting block 124 formed on the side of the drying box 120, the connecting block 124 is embedded with a rotating shaft 125, the cross-section of the connecting block 124 is elliptical or polygonal, one end of the rotating shaft 125 is formed with an interlocking groove 126 that is adapted to the cross-sectional shape of the connecting block 124, one end of the rotating shaft 125 is installed on the side support bar 123, and the side support bar 123 is provided with a fastener for loosely or tightly installing the rotating shaft 125.

[0124] In this embodiment, when the rotating shaft 125 rotates, since the connecting block 124 is inserted into the engaging groove 126, the drying box 120 formed with the connecting block 124 rotates accordingly at the same time, and the angle of the air outlet 122 formed in the drying box 120 changes.

[0125] The fasteners include a top pressing block 127. The fitting surfaces of the top pressing block 127 and the side support strip 123 are respectively formed with semicircular grooves 128 for inserting the rotating shaft 125. The top pressing block 127 is penetrated by a tensioning screw 129 connected to the side support strip 123. When adjustment is required, the tensioning screw 129 is loosened, so that the top pressing block 127 and the support strip are respectively loosened from the rotating shaft 125. At this time, the rotating shaft 125 can be rotated in the semicircular groove 128 to adjust the installation angle. After the adjustment is completed, the tensioning bolt is tightened, and the top pressing block 127 is tightly pressed against the rotating shaft 125 embedded in the semicircular groove 128 to prevent it from rotating a second time after the adjustment is completed.

[0126] The mounting member 13 further includes a first adjusting rod 131 longitudinally mounted on the top of the drying conveying plate 113 of the drying channel 112, a second adjusting rod 132 is penetrated through the side support bar 123, and the first adjusting rod 131 and the second adjusting rod 132 are respectively connected with an adjusting column 133. One end of the adjusting column 133 is fixedly connected to the side support bar 123 of another drying component 12, and an adjusting seat 134 and a first adjusting hole 135 cooperating with the first adjusting rod 131 are formed on the top of the adjusting column 133, and a second adjusting hole 136 cooperating with the second adjusting rod 132 is penetrated through the adjusting seat 134. The first adjusting rod 131 and the second adjusting rod 132 are both threaded rods, and the first adjusting hole 135 and the second adjusting hole 136 are both threaded holes.

[0127] When adjusting the height, the first adjusting rod 131 is rotated to cooperate with the first adjusting hole 135 of the adjusting seat 134, so that the height of the first adjusting rod 131 changes, and accordingly, the height of the adjusting column 133 changes. At this time, the height of the side support bar 123 connected to the bottom of the adjusting column 133 and the top side support bar 123 changes. Then, the second adjusting rod 132 is rotated to cooperate with the second adjusting hole 136, so that the height of the second adjusting rod 132 changes. At this time, the height of the top side support bar 123 can change, and the height of the top side support bar 123 can be adjusted. Therefore, the height of the upper and lower drying components 12 can be adjusted, so that the distance between the air outlet 122 and the lead frame can be adjusted.

[0128] The cleaning mechanism 2 is divided into two cleaning sections, each of which includes a flushing chamber 21. The flushing chamber 21 is provided with a cleaning inlet and outlet 211 for the lead frame to pass through and a flushing channel 210 for conveying the lead frame forward. The flushing channel 210 includes cleaning conveying plates 212 arranged on both sides of the forward direction of the lead frame.

[0129] The cleaning and conveying plate 212 is provided with mounting structures 22 equidistantly along its length direction, and the mounting structure 22 includes a first mounting groove 221 and a second mounting groove 222 formed on the cleaning and conveying plate 212. The mounting structure 22 is detachably arranged with a cleaning and conveying roller 213, wherein the diameter of the cleaning and conveying roller 213 is adapted to the width of the first mounting groove 221, and the width of the second mounting groove 222 is greater than the first mounting groove 221, so that the first mounting groove 221 and the second mounting groove 222 are coaxially connected and form a stepped groove structure, and the second mounting groove 222 is installed with a rolling bearing 223 for mounting the cleaning and conveying roller 213.

[0130] The cleaning conveying roller 213 with a rolling bearing 223 is installed on the first installation groove 221 and the second installation groove 222 of the cleaning conveying plate 212 to realize the rolling forward conveying of the lead frame. The spacing of the cleaning conveying roller 213 can be adjusted according to the needs. When adjusting, the cleaning conveying roller 213 can be directly removed. In addition, at least one or more installation structures 22 are installed with two cleaning conveying rollers 213 for rolling and conveying the lead frame. A spur gear 224 made of plastic material is installed at one end of the cleaning conveying roller 213. The two cleaning conveying rollers 213 installed on the same installation structure 22 are driven by the spur gear 224. The cleaning conveying roller 213 rolls the passing lead frame. When flushing, the flushing mechanism 23 can prevent the lead frame from warping or concave, reduce the probability of deformation, and effectively protect the lead frame.

[0131] Preferably, the cleaning conveying roller 213 is embedded with a cleaning rubber roller 214 formed of plastic material, which can improve the contact friction with the lead frame, and the rolling bearing 223 is a bearing formed of PE material. Since the lead frame is etched using metal liquid, the flushing channel 210 made of plastic material will not react with the liquid, and the liquid will not be affected by the flushing channel 210, thereby ensuring the etching process quality.

[0132] Preferably, a first bevel gear 226 made of plastic material is installed at one end of the cleaning conveying roller 213, a rotatable transmission shaft 225 is arranged along the length direction of the cleaning conveying plate 212, and second bevel gears 227 meshing with the first bevel gears 226 are installed at intervals on the transmission shaft 225, and a plurality of coaxially aligned bearing seats 228 are installed on the cleaning conveying plate 212, and the bearing seats 228 are provided for the transmission shaft 225 to pass through and install. The second bevel gear 227 is made of plastic material, and the transmission shaft 225 rotates under the drive of the motor, and the second bevel gear 227 nested in the transmission shaft 225 meshes with the first bevel gear 226 of the cleaning conveying roller 213 for transmission, and the lead frame can be conveyed and rolled, and the second bevel gear 227 is located at the bottom of the first bevel gear 226, and the cleaning conveying roller 213 is easy to disassemble.

[0133] A plurality of partitions 215 are arranged at intervals in the flushing chamber 21. Each partition 215 is provided with a coaxially aligned through groove 217 for the flushing channel 210 to pass through. Baffles 216 are respectively installed on the front and back sides of the partition 215. The flushing chamber 21 can be divided by the partition 215. After the division, a large amount of liquid in the flushing chamber 21 overflows to the outside of the partition 215, so that the lead frame has a flushing effect with different injection pressures at different conveying positions.

[0134] A flushing mechanism 23 for flushing the lead frame is arranged along the flushing channel 210. The flushing mechanism 23 is arranged above and below the flushing channel 210 respectively. The flushing mechanism 23 includes a pair of flushing plates 231 arranged with gaps. The flushing plates 231 are arranged with multiple flushing tubes 232 along their length directions. Each flushing tube 232 is equipped with multiple high-pressure nozzles 233 facing the lead frame. When the lead frame passes through the flushing channel 210, the high-pressure nozzle 233 of the flushing tube 232 sprays and flushes the lead frame, so that the front and back sides of the lead frame can be cleaned at the same time, thereby improving the cleanliness of the flushing.

[0135] A viewing window 24 with a stepped structure is provided on the side of the flushing chamber 21, and a sealing strip 245 is installed on the inner wall of the viewing window 24 near the inner side. An inner cover plate 243 is installed on the viewing window 24 through the sealing strip 245, which can improve its sealing performance and prevent liquid leakage in the flushing chamber 21. An outer cover plate 244 is installed on the inner wall of the viewing window 24 near the outer side. Both the inner cover plate 243 and the outer cover plate 244 are made of acrylic material and have a transparent effect, so that the flushing effect can be observed.

[0136] Preferably, the viewing window 24 includes a first inner groove 241 installed with a sealing strip 245, the first inner groove 241 is a deformable stepped groove, a frame plate 247 is installed on the outer side of the first inner groove 241, and the inner cover plate 243 is installed with a rotatable clamping block 246 through a rotating shaft seal. The clamping block 246 is a cam structure, and the clamping block 246 is formed with an inclined surface 248 that can be embedded between the frame plate 247 and the first inner groove 241. The groove wall of the first inner groove 241 is also formed with an arc groove 249 for the clamping block to be embedded.

[0137] The viewing window 24 also includes a second inner groove 242, which is formed with a chimeric structure, and the outer cover plate 244 can be installed through the chimeric structure, which is easy to disassemble. When the inner cover needs to be disassembled, the inner cover plate 243 just matches with the first inner groove 241 installed with the sealing strip 245, and then the pressing block 246 is rotated, and a part of the pressing block 246 is rotated into the arc groove 249. At this time, the pressing block 246 is continuously embedded between the first inner groove 241 and the frame plate 247. Since the pressing block 246 is formed with an inclined surface 248, the pressing block 246 continuously presses the inner cover plate 243 into the first inner groove 241, so that the sealing strip 245 is deformed, and fits more closely with the inner cover plate 243, and the sealing is further improved; when it needs to be disassembled, the pressing block 246 is rotated outward, so that the pressure on the inner cover plate 243 is reduced, and it can be removed from the first inner groove 241.

[0138] The film stripping cylinder mechanism 3 includes a rotatable film stripping cylinder assembly 31, which includes a roller 311 and a rotating driving member 32 for driving the roller 311 to rotate. A liquid inlet 312 is formed at one end of the roller 311, and a discharge port 313 is coaxially formed at the other end. A centrifugal channel for the film stripping liquid to pass through is formed between the liquid inlet 312 and the discharge port 313, and the diameter of the centrifugal channel increases continuously from the liquid inlet 312 to the discharge port 313. The roller 311 is installed through a support bracket 314, and a filter cover 315 is installed on the support bracket 314. A filter box 316 is installed at the bottom of the filter cover 315, and a filter channel 317 connected to the filter box 316 is formed at the bottom of the filter cover 315.

[0139] The waste liquid after film stripping enters the drum 311 through the liquid inlet 312. The drum 311 rotates continuously to generate centrifugal force, and the film and liquid in the film stripping liquid are separated, so that the liquid can be recycled. Reduce waste; because the diameter of the centrifugal channel increases continuously from the liquid inlet 312 to the discharge port 313, the centrifugal force in the area where the waste liquid passes through increases continuously, so that the liquid in the waste liquid can be gradually thrown out to the filter cover 315, and the bottom of the filter cover 315 flows into the filter box 316 through the filter channel 317 for collection. Impurities are discharged through the discharge port 313, and the separation effect gradually increases. The separated liquid can be recycled after secondary processing.

[0140] The drum 311 is provided with two outer ring sleeves 321, which are respectively nested at both ends of the drum 311. The drum 311 is also nested with a plurality of fixed sleeves 322 located between the two outer ring sleeves 321. The inner ring walls of the outer ring sleeve 321 and the fixed sleeve 322 are respectively connected to the outer ring wall of the drum 311 in one piece, and the fixed sleeve 322, the outer ring sleeve 321 and the drum 311 are formed into an integral structure by welding. The outer ring sleeve 321 and the fixed sleeve 322 have the same outer diameter, and connecting columns 323 that pass through the fixed sleeve 322 are respectively installed between the two outer ring sleeves 321. The fixed sleeve 322 and the outer ring sleeve 321 are respectively connected in series through the connecting columns 323, so as to further improve the overall stability of the drum 311.

[0141] A support guide wheel 324 rollingly matched with the roller 311 is installed at the bottom of the support bracket 314, and four guide wheel support seats 325 aligned with each other in a transverse direction are installed at the bottom of the support bracket 314, of which two guide wheel support seats 325 are horizontally aligned and close to the discharge port 313. The other two guide wheel support seats 325 are horizontally aligned and close to the liquid inlet 312, and the guide wheel support seats 325 are installed with a support rotating shaft 318 for the support guide wheel 324 to rotate. The two end surfaces of the support guide wheel 324 located close to the discharge port 313 are coaxially installed with a limiting disk 326, and the outer diameter of the limiting disk 326 is larger than the outer diameter of the support guide wheel 324. The outer ring sleeve 321 close to the discharge port 313 rolls with the support guide wheel 324 installed with the limiting disk 326.

[0142] When the roller 311 rolls with the support guide wheel 324 through the outer ring sleeve 321, one of the outer ring sleeves 321 will not fall off the support guide wheel 324 under the limitation of the limiting plates 326 on the two end surfaces of the support guide wheel 324. The roller 311 can be limited by the limiting plates 326 to prevent the roller 311 from falling off due to its axial movement. When the roller 311 rotates, the support guide wheel 324 rolls with it, which can improve the rotation stability of the roller 311 and enable rapid solid-liquid separation of the waste liquid in the roller 311.

[0143] Preferably, the rotating driving member 32 includes a gear ring 327 fixedly nested in the drum 311, the gear ring 327 is coaxially mounted on the outer ring sleeve 321 close to the liquid inlet 312, the support bracket 314 is equipped with a driving motor 328, the driving end of the driving motor 328 is equipped with a driving gear 329 meshing with the gear ring 327, the driving gear 329 is rotatably mounted on the top of the supporting bracket 314, the driving gear 329 meshes with the gear ring 327, and rotates under the drive of the driving motor 328, thereby driving the drum 311 to rotate, and the waste liquid entering the drum 311 will be thrown out to the filter cover 315 due to the centrifugal force of the drum 311, and then flow into the filter box 316 at the bottom.

[0144] The support bracket 314 is provided with a spray assembly 33 along the axial direction of the drum 311. The spray assembly 33 includes a spray pipe 331. The spray pipe 331 is provided with a plurality of flushing nozzles 332 along the length direction. Since the drum 311 is a mesh structure, the spray assembly 33 can clean the drum 311. The cleaning liquid of the flushing nozzle 332 can flush impurities from the mesh. The film stripping cylinder mechanism 3 also includes a waste collection cylinder 333 arranged beside the film stripping cylinder assembly 31. The solids of the drum 311 are discharged into the waste collection cylinder 333 through the discharge port 313 for waste collection.

[0145] The etching mechanism 4 includes an etching box 41. The etching box 41 is provided with through openings 411 for the lead frame to enter and exit on the front and rear sides, respectively. An etching channel 410 for conveying the lead frame forward is provided between the two through openings 411. The etching channel 410 includes an etching conveying plate 412 arranged along the length direction of the etching box 41. The etching conveying plate 412 is provided with etching mounting structures 413 at intervals along its length direction. The etching mounting structure 413 is detachably provided with rotatable etching conveying rollers 414. Two adjacent etching conveying rollers 414 are connected by transmission so that all etching conveying rollers 414 can rotate at the same time. The etching mounting structure 413 is a mounting groove. The etching conveying roller 414 is rotatably placed on the etching mounting structure 413 through a bearing for easy disassembly. The etching conveying roller 414 conveys the lead frame entering the etching box 41 forward to prevent the lead frame from being arched during transportation. At least one etching installation structure 413 is installed with two etching conveying rollers 414 for rolling and conveying the lead frame. The two etching conveying rollers 414 installed on the same etching installation structure 413 are connected by gear meshing transmission to achieve rolling. After conveying for a distance, it will pass through a pair of etching conveying rollers 414 arranged in a rolling manner. The rolling pressing of the two etching conveying rollers 414 can prevent the lead frame from arching during the etching process, thereby improving the stability of the etching.

[0146] The etching conveying rollers 414 at both ends of the etching conveying plate 412 are nested with guide rubber rollers 415 along their length direction. The etching conveying rollers 414 at both ends of the etching conveying plate 412 are a pair. Through the guide rubber rollers 415, the friction with the lead frame is higher during rolling, and the plastic rubber rollers will not cause damage to the lead frame.

[0147] The etching conveying roller 414 is nested with a plurality of roller sleeves 416 arranged at intervals along its length direction. During rolling support, the roller sleeves 416 can also increase the contact friction with the lead frame and improve the conveying stability.

[0148] An etching component 42 for spraying liquid onto the lead frame is arranged along the etching channel 410. The etching component 42 includes a support member 421 and a movable driving member 43 for driving the support member 421 to move back and forth. The support member 421 is equipped with a plurality of spray heads 428 that can spray liquid toward the lead frame. The support members 421 of the etching component 42 are respectively arranged above and below the etching channel 410. By spraying liquid onto the lead frame passing through the support member 421 equipped with the spray head 428, both the front and back sides of the lead frame can be etched at the same time.

[0149] The support member 421 includes a support frame 424 and a guide plate 422 for the support frame 424 to slide. A plurality of bottom spray pipes 427 are arranged on the support frame 424. Each bottom spray pipe 427 is equipped with a plurality of spray heads 428. The support frame 424 is also equipped with a plurality of top liquid pipes 426. The top liquid pipes 426 are arranged perpendicular to the bottom spray pipes 427 and are connected to the bottom spray pipes 427. The liquid medicine is introduced into the bottom spray pipes 427 through the top liquid pipes 426, and the bottom spray pipes 427 then spray the liquid medicine outward through the spray heads 428.

[0150] The guide plate 422 is arranged perpendicular to the forward direction of the lead frame. A sliding channel 423 is opened along the length direction of the guide plate 422. The sliding channel 423 is laterally formed on the inner wall of the guide plate 422. The support frame 424 is equipped with a guide rolling wheel 425 that rolls with the sliding channel 423. The guide rolling wheel 425 rolls in the sliding channel 423. When the support frame 424 moves, the guide rolling wheel 425 rolls with the sliding channel 423 of the guide plate 422, so that the support frame 424 equipped with the injection head 428 moves more smoothly.

[0151] The mobile driving member 43 includes a rotatable driving shaft 431, which rotates under the drive of a motor. The top and bottom of the driving shaft 431 are respectively connected to the supporting member 421, so that the supporting frame 424 above and below the etching channel 410 can move horizontally.

[0152] Specifically, the drive shaft 431 is installed with an eccentric wheel 432, and the eccentric wheel 432 is nested with a crank member. The eccentric wheel 432 is provided with an eccentric hole for inserting the drive shaft 431, and the crank member includes a crank block 433. The crank block 433 is formed with a driving groove 434 for installing the eccentric wheel 432, and the eccentric wheel 432 and the driving groove 434 are rollingly matched. The inner ring wall of the driving groove 434 is equipped with a plurality of cam balls 435 that roll with the eccentric wheel 432. A shielding cover 436 that folds the cam balls 435 is installed on the top of the driving groove 434 to prevent debris from entering the cam balls 435. A connecting shaft 437 is installed at one end of the crank block 433. One end of the connecting shaft 437 is rotatably installed on the support frame 424. The support frame 424 is equipped with a latch 438. One end of the connecting shaft 437 is longitudinally penetrated by a rotating hole 439 that cooperates with the latch 438. One end of the connecting shaft 437 is rotatably connected to the latch 438 through the rotating hole 439.

[0153] In this embodiment, the driving shaft 431 rotates, causing the eccentric wheel 432 to rotate accordingly. The eccentric wheel 432 swings accordingly with the driving shaft 431 as the axis. When swinging, the eccentric wheel 432 rolls and cooperates in the driving groove 434 of the driving block through the cam ball 435. Since the eccentric wheel 432 keeps swinging, the position of the driving shaft 431 does not change, and thus the crank block 433 is guided to move in an arc trajectory, causing the driving shaft 431 connected to the crank block 433 to move accordingly. Since the crank block 433 moves in an arc trajectory, the connecting shaft 437 is offset, and the connecting shaft 437 is rotated around the pin 438 through the rotating hole 439 to prevent the connecting shaft 437 from breaking; thereby driving the support frame 424 to move back and forth; allowing the liquid sprayed from the injection head 428 to react with the lead frame more evenly without moving the lead frame, thereby ensuring the stability of the etching process.

[0154] Preferably, the drying chamber 11 of the drying mechanism 10, the cleaning box 21 of the cleaning mechanism 2, and the etching box 41 of the etching mechanism 4 are aligned along the forward direction of the lead frame; wherein the drying inlet and outlet 111 of the drying chamber 11, the cleaning inlet and outlet 211 of the cleaning box 2, and the through port 411 of the etching box 4 are coaxially aligned and connected, and the drying channel 112 is connected to the flushing channel 210 and the etching channel 410 to form a long conveyor line, so that the lead frame can seamlessly enter from the drying chamber 11 to the cleaning box 21 and then from the cleaning box to the etching box 41, thereby reducing the exposure of the lead frame.

[0155] The receiving module 7 includes a receiving box 70, which is provided with a receiving port 711 for the lead frame to enter and exit. The receiving box 70 is provided with a paper tape unwinding mechanism 710, a material tape conveying mechanism 72 and a guide winding mechanism 73 for simultaneously winding up the mutually attached paper tape and material tape.

[0156] The paper tape unwinding mechanism 710 includes a plurality of first paper tape shafts 712 for nesting paper tape reels and a second paper tape roller 713 for guiding and transmitting the paper tape. The bottom of the receiving box 70 is provided with paper tape installation components for installing the first paper tape shafts 712 and the second paper tape roller 713 respectively. The paper tape installation components include a longitudinal bracket 714. The top of the longitudinal bracket 714 is transversely provided with a top paper tape hole 715 for the first paper tape shaft 712 or the second paper tape roller 713 to be rotatably inserted. The top of the longitudinal bracket 714 is also provided with a receiving bearing seat 716 for the first paper tape shaft 712 or the second paper tape roller 713 to be inserted. The six first paper tape shafts 712 are equidistantly located between the material tape conveying mechanism 72 and the receiving port 711 into which the supply tape enters. The first paper tape shaft 712, through the cooperation of the longitudinal bracket 714 and the receiving bearing seat 716, the paper tape reel nested in the first paper tape shaft 712 can be rotatably unwound and unloaded.

[0157] The material belt conveying mechanism 72 includes a bottom guide roller 722 for guiding the paper belt and a top guide roller 723 for guiding the material belt. The material belt conveying mechanism 72 also includes a conveying bracket 721 for mounting the bottom guide roller 722 and the top guide roller 723. The conveying bracket 721 is a longitudinally arranged aluminum profile, wherein a plurality of bottom guide rollers 722 are equidistantly mounted at the bottom end of the conveying bracket 721, and a plurality of top guide rollers 723 are equidistantly mounted at the top end of the conveying bracket 721. The bottom guide rollers 722 and the top guide rollers 723 are both mounted through a mounting seat. Since the conveying bracket 721 is an aluminum profile, the mounting seat can be mounted on the conveying bracket 721 with an adjustable height. The unwound paper belt cooperates with the bottom guide roller 722 at the bottom of the conveying bracket 721, and the bottom guide roller 722 cooperates with the paper belt for guided transmission, and the material belt cooperates with the top guide roller 723 at the top of the conveying bracket 721 for guided transmission. In addition, a guide bracket 724 is provided beside the conveying bracket 721, a guide shaft 725 is installed on the top of the guide bracket 724, and a plurality of guide wheels 726 for guiding the lead frame material strip are installed equidistantly on the guide shaft 725. A limit installation shaft 727 is provided parallel to the guide shaft 725, and a plurality of limit members aligned with the guide wheels 726 are installed equidistantly on the limit installation shaft 727, and the limit members include a pair of limit rods 728 nested in the limit installation shaft 727, and the material strip is guided to enter the guide wheel 726 from between the two limit rods 728.

[0158] The second paper tape roller 713 is located below the guide wheel 726 .

[0159] In one of the embodiments: after the material tape is conveyed by the top guide roller 723, the guide wheel 726 cooperates, and the limiting rod 728 beside the guide wheel 726 can guide and limit the material tape before entering the guide wheel 726, so that the material tape just contacts the wheel surface of the guide wheel 726, and can be aligned and wound when entering the subsequent guide and winding mechanism 73. After the paper tape is guided and conveyed by the bottom guide roller 722, it further enters the second paper tape roller 713 for guided conveyance, and then enters the guide and winding mechanism 73 to fit the material tape for winding.

[0160] In one of the embodiments: after the material tape is conveyed by the top guide roller 723, the guide wheel 726 cooperates, and the limiting rod 728 beside the guide wheel 726 can guide and limit the material tape before entering the guide wheel 726, so that the material tape just contacts the wheel surface of the guide wheel 726, and can be aligned and reeled when entering the subsequent guide and reeling mechanism 73; after the paper tape is guided and conveyed by the bottom guide roller 722, it enters the guide wheel 726 at the same time, and the limiting rod 728 beside the guide wheel 726 can guide and limit the material tape and the paper tape before entering the guide wheel 726, so that the paper tape and the material tape are aligned with each other and enter the guide wheel 726 in a close fit, thereby preventing the paper tape and the material tape from offsetting.

[0161] The guide winding mechanism 73 includes a winding platform 730, and the winding platform 730 is equipped with a plurality of rolling trays 7310 for holding the material tray. The rolling tray 7310 includes more than two rolling wheels that roll with the material tray. The rolling wheels are divided into active wheels 732 that rotate actively and driven wheels 733 that rotate passively. The rolling tray 7310 also includes a tray mounting plate 734, and the tray mounting plate 734 is equipped with tray shafts 731 for rotationally inserting the active wheels 732 and the driven wheels 733. A material mounting plate 736 is installed parallel to the side of the tray mounting plate 734, and the tray shafts 731 are installed between the tray mounting plate 734 and the material mounting plate 736.

[0162] In this embodiment, the material tray to be wound is placed on the rolling tray 7310 of the winding platform 730, and two rolling wheels arranged at intervals provide rolling support for the material tray, wherein the active wheel 732 rotates around the tray axis 731 to drive the material tray to rotate, and the driven wheel 733 correspondingly cooperates with the material tray to achieve driven rotation, so that the lead frame entering the material tray can be wound, and there will be no jamming.

[0163] The top surfaces of the tray mounting plate 734 and the support mounting plate 736 are both arc-shaped surfaces, which can be adapted to the shape of the material tray to improve the rolling stability during winding. An active motor 737 and an active gear 738 connected to the active motor 737 are provided at one end of the support mounting plate 736, and a driven gear 739 meshing with the active gear 738 is installed on the active support wheel 732. Under the drive of the active motor 737, the active gear 738 installed on the support mounting plate 736 meshes with the driven gear 739 nested in the active support wheel 732, so that the active support wheel 732 can rotate and guide the material tray to rotate.

[0164] Preferably, the winding platform 730 is also provided with a material support bar 735 for supporting the material support mounting plate 736, and supporting the tray mounting plate 734. The lead frame moves along the length direction of the winding platform 730, and a plurality of rolling tray members 7310 are arranged equidistantly along the width direction of the winding platform 730, so that a plurality of material trays can be wound up at the same time.

[0165] A longitudinally aligned rolling pressing member 74 is disposed above the rolling tray member 7310. The rolling pressing member 74 includes a rolling pressing wheel 741 that can roll with the material tray elastically. The rolling pressing wheel 741 is elastically pressed against the top of the material tray. The pressing rolling members are arranged along the width direction of the winding platform 730. The rolling pressing member 74 also includes a fulcrum shaft 747 and a swing plate 742 swingably mounted on the fulcrum shaft 747. The rolling pressing wheel 741 is rotatably mounted at one end of the swing plate 742.

[0166] In this embodiment, the bottom of the material tray rolls with the rolling support wheel, the top of the material tray cooperates with the rolling pressure wheel 741, the swing plate 742 swings around the fulcrum shaft 747, and elastically presses the top of the material tray. When the material tray is rolled up, the upper rolling pressure wheel 741 presses down to prevent the material tray from bouncing up when rotating, thereby improving the stability of the rolling up and preventing the rolled lead frame material strip from becoming loose.

[0167] The swing plate 742 includes an active part 743, a fulcrum part 744 and a driven part 745. A driving shaft 746 is arranged parallel to the fulcrum shaft 747. The active shaft 746 is installed on the active part 743, and the fulcrum shaft 747 is installed on the fulcrum part 744. The driven part 745 is installed with a driven shaft 748 for inserting the rolling pressure wheel 741. The driven shaft 748 serves as a driving end and is connected to the active part 743 of the swing plate 742. After the active part 743 is subjected to force, it swings around the fulcrum shaft 747 through the fulcrum part 744. Since the rolling pressure wheel 741 is rotatably installed on the active shaft 746, the position of the rolling pressure wheel 741 can be changed, and the material trays with different outer diameters can be rolled.

[0168] The winding platform 730 is provided with a top frame 75 for installing a rolling press part 74, and the top frame 75 is provided with a first frame 751 for installing a fulcrum shaft 747. The swing plates 742 of multiple rolling press parts 74 are equidistantly arranged on the fulcrum shaft 747. The rolling press part 74 is vertically aligned with the rolling tray part 7310. A second frame 752 is provided beside the first frame 751. The second frame 752 is provided with a telescopic driving part 753 that can be telescopic forward and backward. The telescopic driving part 753 is a telescopic cylinder. The driving end of the telescopic driving part 753 is provided with a joint bearing 754 that is movably nested in the driving shaft 746, and the joint bearing 754 can rotate around the driving shaft 746.

[0169] Specifically, before elastic pressing, the material tray is placed on the winding platform 730, and the bottom of the material tray rolls with the rolling tray member 7310. At this time, the telescopic driving member 753 extends out, so that the rolling pressure wheel 741 installed on the driven part 745 of the swing plate 742 is pressed down until it contacts the material tray, and can roll with the material tray. The telescopic cylinder has a buffering effect.

[0170] In summary, it can be seen that the present invention has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0171] 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 will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An integrated production line for unloading, etching and collecting of lead frame etching equipment, comprising an unloading module, an etching module and a collecting module, characterized in that: The unwinding module includes an unwinding area and a conveying area, the conveying area includes one or more conveying rollers for guiding and conveying the unwinding material strip forward, the height of the conveying rollers is adjustable, the unwinding area includes an unwinding base and an unwinding frame slidably mounted on the unwinding base, the unwinding frame is provided with an unwinding station for nesting the unwinding material tray and a guiding station for unwinding and conveying the unwinding material strip; The unwinding station comprises a rotatable unwinding shaft, an adjusting sliding seat is slidably mounted on the unwinding shaft, the adjusting sliding seat is movably connected to a connecting rod, more than two expansion plates are arranged on the periphery of the unwinding shaft, the other end of the connecting rod is movably connected to the expansion plate, and the adjusting sliding seat reciprocates along the unwinding shaft to adjust the distance between the expansion plate and the unwinding shaft; The etching module includes a drying mechanism, a cleaning mechanism and an etching mechanism. The etching mechanism includes an etching box, the etching box is provided with a through port for the lead frame to enter and exit, and an etching channel for conveying the lead frame forward. An etching assembly for spraying liquid through the lead frame is arranged along the etching channel. The etching assembly includes a support member and a moving driving member for driving the support member to move back and forth. The support member is equipped with a plurality of spray heads that can spray liquid toward the lead frame. The etching channel includes an etching conveying plate arranged along the length direction of the etching box. The etching conveying plate is provided with mounting structures at intervals along the length direction thereof. The mounting structure is detachably provided with etching conveying rollers. At least one or more mounting structures are equipped with two etching conveying rollers for roller-pressing and conveying the lead frame. The material discharging base includes a support rail and a bottom rolling wheel arranged along its width direction, and a top rolling wheel rollingly matched with the support rail and a guide rail rollingly matched with the bottom rolling wheel are installed at the bottom of the material discharging frame; the material discharging base includes a pair of parallel and spaced bottom driving seats, and the material discharging frame includes a pair of parallel and spaced top driving seats, and the outer side wall of the top driving seat is provided with a roller shaft for installing the top rolling wheel, and the guide rail is arranged along the length direction of the outer side wall of the top driving seat; a bottom fixing seat for installing the bottom rolling wheel is provided at the top of the bottom driving seat, and the bottom rolling wheel rolls along the top surface of the guide rail; The cleaning mechanism is divided into two cleaning sections. The cleaning section includes a flushing chamber. The flushing chamber is provided with a cleaning inlet and outlet for the lead frame to pass through and a flushing channel for forward conveying the lead frame. A flushing mechanism for flushing the lead frame is arranged along the flushing channel. A plurality of partitions are arranged at intervals in the flushing chamber, and each partition is provided with a coaxially aligned through slot for the flushing channel to pass through; A viewing window with a stepped structure is provided on the side of the flushing chamber, a sealing strip is installed on the inner wall of the viewing window close to the inner side, an inner cover plate is installed on the viewing window through the sealing strip, and an outer cover plate is installed on the inner wall of the viewing window close to the outer side; the viewing window includes a first inner groove, the first inner groove is a deformable stepped groove, a frame plate is installed on the outer side of the first inner groove, a rotatable pressing block is installed on the inner cover plate through a rotating shaft seal, the pressing block is a cam structure, the pressing block is formed with an inclined surface that can be embedded between the frame plate and the first inner groove, and the groove wall of the first inner groove is also formed with an arc groove for the pressing block to be embedded; the viewing window also includes a second inner groove, the second inner groove is formed with a mosaic structure for installing the outer cover plate.

2. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 1 comprises a discharging module, an etching module and a collecting module, characterized in that: The drying mechanism includes a drying chamber, which is provided with a drying channel for progressively conveying the lead frame and an inlet and outlet for the lead frame to pass through. A drying assembly for drying the lead frame is arranged along the drying channel. The drying assembly includes a plurality of drying boxes arranged at intervals along the length direction of the drying channel. The drying box is formed with an air outlet facing the lead frame. The drying channel is provided with mounting parts along its length direction, and the drying box is provided with a rotating adjustment part rotatably connected to the mounting parts.

3. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 2 comprises a discharging module, an etching module and a collecting module, characterized in that: The drying channel includes a drying conveying plate arranged along the length direction of the drying chamber, and the drying conveying plate is installed with a plurality of drying conveying rollers arranged at intervals to support and convey the lead frame; the drying components are respectively arranged above and below the drying channel; the mounting parts include side support bars with adjustable height, a first adjusting rod longitudinally installed in the drying channel, the side support bar is penetrated by a second adjusting rod, and the first adjusting rod and the second adjusting rod are respectively connected with adjusting columns; one end of the adjusting column is connected to the side support bar of another drying component, and an adjusting seat and a first adjusting hole cooperating with the first adjusting rod are formed on the top of the adjusting column, and a second adjusting hole cooperating with the second adjusting rod is formed on the adjusting seat.

4. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 3 comprises a discharging module, an etching module and a collecting module, characterized in that: The rotation adjustment part includes a connecting block formed on the side of the drying box, the connecting block is embedded with a rotating shaft, one end of the rotating shaft is installed on the side support bar, and the side support bar is provided with a fastener for loosely and tightly installing the rotating shaft; the fastener includes a top pressing block, and the fitting surfaces of the top pressing block and the side support bar are respectively formed with semicircular grooves for inserting the rotating shaft, wherein the top pressing block is penetrated by a loosening screw connected to the side support bar; the cross-section of the connecting block is elliptical or polygonal, and one end of the rotating shaft is formed with an interlocking groove adapted to the cross-sectional shape of the connecting block.

5. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 1 comprises a discharging module, an etching module and a collecting module, characterized in that: The cleaning mechanism is connected to a film stripping cylinder mechanism, which includes a rotatable film stripping cylinder assembly, which includes a drum and a rotating driving member for driving the drum to rotate. The drum wall is a mesh structure, one end of the drum is formed with a liquid inlet, and the other end is coaxially formed with a discharge port, a centrifugal channel for the film stripping liquid to pass through is formed between the liquid inlet and the discharge port, and the diameter of the centrifugal channel increases continuously from the liquid inlet to the discharge port.

6. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 5 comprises a discharging module, an etching module and a collecting module, characterized in that: The film stripping cylinder assembly also includes a support bracket for installing the roller, a support guide wheel that rolls with the roller is installed at the bottom of the support bracket, and the roller is installed with an outer ring sleeve that cooperates with the support guide wheel; the outer ring sleeves are respectively nested at both ends of the roller, and the roller is also nested with multiple fixed sleeves located between the two outer ring sleeves, and the outer ring sleeve and the inner ring wall of the fixed sleeve are respectively integrally connected with the outer ring wall of the roller.

7. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 6 comprises a discharging module, an etching module and a collecting module, characterized in that: The outer diameters of the outer ring sleeve and the fixed sleeve are the same, and connecting columns that pass through the fixed sleeves are installed between the two outer ring sleeves; guide wheel support seats that are laterally aligned with each other are installed at the bottom of the support bracket, and the guide wheel support seats are installed with a rotating shaft for the support guide wheel to rotate; wherein limiting disks are coaxially installed on the two end surfaces of the support guide wheel close to the discharge port, and the outer diameter of the limiting disk is larger than the outer diameter of the support guide wheel, and the outer ring sleeve close to the discharge port rolls in cooperation with the support guide wheel installed with the limiting disk.

8. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 7 comprises a discharging module, an etching module and a collecting module, characterized in that: The rotating drive member includes a gear ring fixedly nested in the drum, the gear ring is coaxially mounted on an outer ring sleeve close to the liquid inlet, a support bracket is mounted with a driving motor, a driving end of the driving motor is mounted with a driving gear meshing with the gear ring; the support bracket is mounted with a filter cover, a filter box is mounted at the bottom of the filter cover, and a filter channel connected to the filter box is formed at the bottom of the filter cover; the support bracket is arranged with a spray assembly along the axial direction of the drum, the spray assembly includes a spray pipe, and a plurality of flushing nozzles are arranged along the length direction of the spray pipe; the film stripping cylinder mechanism also includes a waste collection cylinder arranged beside the film stripping cylinder assembly, and the solids on the drum are discharged into the waste collection cylinder through the discharge port.

9. The integrated production line for discharging, etching and collecting of lead frame etching equipment according to claim 1, comprising a discharging module, an etching module and a collecting module, characterized in that: The material receiving module includes a material receiving box, which is provided with a material receiving port for the lead frame to enter and exit, and is provided with a paper tape unwinding mechanism, a material tape conveying mechanism and a guiding rewinding mechanism for simultaneously rewinding the paper tape and material tape that are bonded to each other; the paper tape unwinding mechanism includes a plurality of first paper tape shafts for nesting paper tape reels and a second paper tape roller for guiding and conveying the paper tape; the material tape conveying mechanism includes a bottom guide roller for guiding the paper tape and a top guide roller for guiding the material tape.

10. The integrated production line for unloading, etching and collecting of lead frame etching equipment according to claim 9, comprising an unloading module, an etching module and a collecting module, characterized in that: The guide winding mechanism includes a winding platform, the winding platform is equipped with a plurality of rolling trays for holding the material tray, the rolling tray includes more than two rolling support wheels that roll with the material tray, a longitudinally aligned rolling pressing member is arranged above the rolling tray, the rolling pressing member includes a rolling pressing wheel that can roll elastically with the material tray, and the rolling pressing wheel is elastically pressed tightly against the top of the material tray; The rolling rollers are divided into active rollers that rotate actively and driven rollers that rotate passively. The rolling pallet also includes a pallet mounting plate, on which pallet shafts are mounted for the active roller and driven roller to rotate and insert respectively; a material mounting plate is mounted parallel to the side of the pallet mounting plate, and the pallet shafts are mounted between the pallet mounting plate and the material mounting plate respectively, and the top surfaces of the pallet mounting plate and the material mounting plate are both arc-shaped surfaces; An active motor and an active gear connected to the active motor are arranged at one end of the material support mounting plate, and a driven gear meshing with the active gear is installed on the active supporting wheel; the winding platform is also arranged with a material support bar to support the material support mounting plate, the lead frame moves along the length direction of the winding platform, and multiple rolling tray parts and pressing rolling parts are respectively arranged along the width direction of the winding platform.

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