CN217536129U - Lifting tin-coating assembly and tin spraying machine with same - Google Patents

Abstract

The utility model discloses a go up and down tin feeding subassembly and have tin spraying machine of this subassembly belongs to PCB board processing field, and the tin feeding subassembly that goes up and down includes elevator plate and fixes the elevator motor in the elevator plate top, and elevator plate's top fixedly connected with tin feeding fixing base, the side swing joint of tin feeding fixing base has the tin feeding belt pulley, and passes through tin feeding belt transmission between tin feeding belt pulley and the elevator motor output, fixedly connected with tin feeding lift seat on the lateral surface of tin feeding belt, and the side fixedly connected with tin feeding grip slipper of tin feeding lift seat, the one end swing joint of tin feeding grip slipper has pneumatic clamping jaw, and the inside of tin feeding grip slipper is equipped with the tin feeding cylinder of being connected with pneumatic clamping jaw, be equipped with tin feeding stop gear between tin feeding grip slipper and the elevator plate. The utility model discloses, through a series of structures that set up, can make the PCB board descend and remove the sufficient high-efficient stability of process of hot air solder leveling.

Description

Lifting tin-coating assembly and tin spraying machine with same

Technical Field

The utility model relates to a PCB board processing field specifically is a go up and down tin subassembly and have tin spraying machine of this subassembly.

Background

In order to avoid the oxidation of the bare copper surface of the PCB and maintain the solderability of the PCB, the PCB needs to be subjected to tin spraying, and the conventional common tin spraying device is a tin spraying machine.

The tin spraying machine is used for covering a tin-aluminum alloy layer on a copper clad laminate in the PCB processing technology. Tin is a metal element with low melting point, is convenient to process and shape, cannot be oxidized by air, can prevent articles from rusting and corroding due to tin spraying, and is stable due to the fact that a tin dioxide protective film is generated on the surface of tin in the air.

The prior art has the following problems: the process of driving the PCB to descend and remove the tin spraying is not efficient and stable enough. Therefore, the technical personnel in the field provide a lifting tin-coating assembly and a tin spraying machine with the same to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a go up and down tin spraying machine of tin subassembly and have this subassembly through a series of structures that set up, can make the PCB board descend to go to the enough high efficiency of process of tin spraying stable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a lift tinning subassembly, includes lifting floor and fixes the elevator motor in lifting floor top, and lifting floor's top fixedly connected with tinning fixing base, the side swing joint of tinning fixing base has the tinning belt pulley, and passes through tinning belt drive between tinning belt pulley and the elevator motor output, fixedly connected with tinning lift seat on the lateral surface of tinning belt, and the side fixedly connected with tinning grip slipper of tinning lift seat, the one end swing joint of tinning grip slipper has pneumatic clamping jaw, and the inside of tinning grip slipper is equipped with the tinning cylinder of being connected with pneumatic clamping jaw, be equipped with the tinning stop gear between tinning grip slipper and the lifting floor.

Furthermore, the tinning limiting mechanism comprises two parallel tinning limiting rods fixed on the top end face of the lifting bottom plate, and the top ends of the tinning limiting rods penetrate through the tinning lifting seat.

Furthermore, a tinning limiting plate is fixedly connected between the two tinning limiting rods, and the top end of the tinning limiting plate penetrates through a tinning lifting groove formed in the tinning lifting seat.

Furthermore, the top end and the bottom end of the outer side surfaces of the two upper tin limiting rods are fixedly connected with limiting sleeves.

Furthermore, go up tin subassembly still includes tin pushing cylinder, and tin pushing cylinder fixes the frame top edge between upset subassembly and spacing release subassembly, tin pushing cylinder's output fixedly connected with concave type push pedal.

Furthermore, the groove of the concave push plate faces the upper tin lifting seat.

The utility model also provides a hot air solder leveling machine, including foretell lift tinning subassembly, through the PCB board that lift tinning subassembly butt-joint carried out the centre gripping and descends and prepare the hot air solder leveling.

Compared with the prior art, the beneficial effects of the utility model are that:

through a series of structures that set up, can make the sufficient high efficiency of PCB board decline go the process of hot air solder leveling stable.

Drawings

FIG. 1 is a schematic structural view of a tin spraying machine according to an embodiment of the present invention;

fig. 2 is an internal view of a frame in an embodiment of the present invention;

fig. 3 is a schematic structural view of a feeding assembly in an embodiment of the present invention;

fig. 4 is a side view of the feeding assembly in the embodiment of the present invention;

fig. 5 is a schematic structural diagram of the turnover assembly in the embodiment of the present invention;

fig. 6 is a side view of the flip assembly in an embodiment of the present invention;

fig. 7 is a schematic structural view of a clamping and rotating assembly according to an embodiment of the present invention;

FIG. 8 is a view of the combination of the elongated plate and the shaft in the embodiment of the present invention;

FIG. 9 is a schematic structural view of a lifting tinning assembly according to an embodiment of the present invention;

FIG. 10 is a combination view of the cross plate and the pneumatic clamping jaw according to the embodiment of the present invention;

FIG. 11 is a view showing the combination of the tin-coating clamping base and the pneumatic clamping jaw according to the embodiment of the present invention;

fig. 12 is a schematic structural view of a spacing release assembly according to an embodiment of the present invention;

FIG. 13 is a view showing the movable clamp block and the fixed clamp block according to the embodiment of the present invention;

fig. 14 is a schematic structural view of a blanking assembly in an embodiment of the present invention;

fig. 15 is a combination view of the limiting optical axis and the lead screw according to the embodiment of the present invention;

fig. 16 is a side view of the blanking assembly in the embodiment of the present invention.

In the figure: 1. a frame; 201. a feeding table; 202. a feeding side plate; 203. a feeding gap; 204. a left correction cross beam; 205. a right correcting beam; 206. a feeding limiting rod; 207. a feeding slide rail; 208. a stepping motor; 209. a feeding rotating shaft; 2010. a conveying roller; 2011. correcting the cylinder; 2012. correcting the lifting plate; 2013. pushing the middle rod to the right; 2014. a feeding belt pulley; 2015. a conveying motor; 2016. a material pushing motor; 2017. a pusher pulley; 2018. pushing the middle rod leftwards; 2019. a material pushing seat; 2020. a material pushing rod; 301. turning over the bottom plate; 302. turning over the supporting plate; 303. turning over a motor; 304. a turning seat; 305. turning over a lifting motor; 306. turning over the screw rod; 307. turning over the lifting seat; 308. turning over the limiting shaft; 309. turning over the clamping plate; 3010. turning over the limiting seat; 401. a rotating frame; 402. a rotating electric machine; 403. a first fixed block; 404. a second fixed block; 405. a concave splint; 406. a linear bearing; 407. a spring post; 408. A long slat; 409. a transverse plate; 4010. a rectangular groove; 4011. a shaft lever; 4012. a movable clip; 4013. Fixing the clamp; 4014. a torsion spring; 4015. a clamping cylinder; 4016. pushing a plate; 4017. a roller bearing; 501. a lifting bottom plate; 502. a lifting motor; 503. a tinning fixed seat; 504. coating a tin belt pulley; 505. coating a tin belt; 506. tinning a limiting rod; 507. a tin-coating limiting plate; 508. a tinning lifting seat; 509. a tin coating clamping seat; 5010. a tinning cylinder; 5011. a pneumatic clamping jaw; 5012. a tinning pushing cylinder; 5013. a concave push plate; 601. releasing the bottom plate; 602. releasing the support plate; 603. releasing the rotating electrical machine; 604. releasing the rotary seat; 605. releasing the lifting cylinder; 606. releasing the lifting seat; 607. a vertical plate; 608. a vertical slot; 609. releasing the telescopic cylinder; 6010. a vertical connecting rod; 6011. releasing the limiting seat; 6012. An adapter; 6013. a push-pull rod; 6014. a lever clamping block; 6015. releasing the top plate; 6016. a movable clamping block; 6017. fixing the clamping block; 701. a blanking table; 702. a fan support plate; 703. an upper fan; 704. A lower fan; 705. blanking a movable side plate; 706. blanking and fixing the side plate; 707. limiting an optical axis; 708. A lead screw; 709. a conical pulley; 7010. a blanking gap; 7011. a blanking belt pulley; 7012. a space adjusting motor; 7013. a blanking motor; 8. a protective housing; 9. feeding a shell; 10. blanking the shell; 11. and (7) a PCB board.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 to 16, the present embodiment provides a technical solution: the utility model provides a tin spraying machine, which comprises a frame 1, the top of frame 1 is equipped with protection casing 8, and a side fixedly connected with material loading casing 9 of frame 1, the below of material loading casing 9 is equipped with the material loading subassembly, another side fixedly connected with unloading casing 10 of frame 1, and the below of unloading casing 10 is equipped with the unloading subassembly, the inside of protection casing 8 is equipped with centre gripping rotating assembly, and be equipped with the upset subassembly between centre gripping rotating assembly and the material loading subassembly, one side of centre gripping rotating assembly is equipped with the tin subassembly in the lift, and be equipped with spacing release subassembly between centre gripping rotating assembly and the unloading subassembly. Through a series of structures that set up, can improve hot air solder leveling efficiency to strengthen the stability of PCB board 11 transfer in-process.

In this embodiment: the material loading subassembly is including fixing the material loading platform 201 in frame 1 one side, and the top face both sides border fixedly connected with material loading curb plate 202 of material loading platform 201, material loading breach 203 has been seted up to the intermediate position of material loading curb plate 202, and the both sides of material loading breach 203 are equipped with left correction crossbeam 204 and right correction crossbeam 205 respectively, the both ends of left correction crossbeam 204 and right correction crossbeam 205 are equipped with spacing slide mechanism, the bottom face fixedly connected with left push-in pole 2018 of a plurality of evenly distributed of left correction crossbeam 204, the top intermediate position fixedly connected with correction cylinder 2011 of right correction crossbeam 205, and the bottom output of correction cylinder 2011 runs through right correction crossbeam 205 and fixedly connected with correction lifter 2012, the bottom face fixedly connected with right push-in pole 2013 of a plurality of evenly distributed of correction lifter 2012, be equipped with gyro wheel conveying mechanism between two material loading curb plates 202, and the material loading breach 203 department of two material loading curb plates 202 intermediate positions is equipped with material loading pushing mechanism. The PCB 11 that will treat the hot air solder leveling is placed on gyro wheel conveying mechanism, drive PCB 11 by gyro wheel conveying mechanism and move forward, when removing right push rod 2013, rectify cylinder 2011 operation and drive and rectify lifter 2012 and rise, and then drive right push rod 2013 and go up for PCB 11, PCB 11 continues to advance until meetting the blockking of left push rod 2018, at this moment, spacing slide mechanism operation pushes away PCB 11, then, push away PCB 11 towards the upset subassembly through material loading pushing mechanism can.

In this embodiment: roller conveying mechanism includes a plurality of material loading pivot 209 that parallel between two material loading curb plates 202 of swing joint, and a plurality of evenly distributed's of fixedly connected with conveying roller 2010 on the lateral surface of material loading pivot 209, material loading curb plate 202 and fixedly connected with material loading belt pulley 2014 are run through to the one end of material loading pivot 209, the below fixedly connected with conveying motor 2015 of material loading breach 203, and be connected through belt transmission between conveying motor 2015 and each material loading belt pulley 2014. When PCB board 11 was placed at gyro wheel conveying mechanism, conveying motor 2015 operation drove the rotation of material loading belt pulley 2014, and then drives material loading pivot 209 and rotate, and conveying roller 2010 follows material loading pivot 209 and rotates and take PCB board 11 area to move forward.

In this embodiment: the right middle pushing rod 2013 and the left middle pushing rod 2018 are arranged in a staggered mode with the conveying roller 2010. This arrangement ensures that the right and left push rods 2013, 2018 do not interfere with the rotation of the conveyor roller 2010.

In this embodiment: the height of the horizontal plane at the bottom end of the left middle pushing rod 2018 is lower than that of the horizontal plane at the top end of the conveying roller 2010. This arrangement ensures that the PCB board 11 cannot pass over the left push rod 2018.

In this embodiment: the feeding pushing mechanism comprises a pushing motor 2016 fixed on one side of the bottom end of the feeding notch 203, a pushing belt pulley 2017 is arranged on the other side of the bottom end of the feeding notch 203, the output end of the pushing motor 2016 and the pushing belt pulley 2017 are in transmission through a conveying belt, a pushing seat 2019 fixedly connected with the conveying belt is arranged on one side of the pushing belt pulley 2017, and pushing rods 2020 are fixedly connected to two sides of one side face of the pushing seat 2019 facing the pushing motor 2016. The specific process that the feeding pushing mechanism pushes the PCB 11 towards the turnover assembly is that after the PCB 11 is pushed to the middle position, the pushing motor 2016 operates to drive the pushing belt pulley 2017 to rotate with the conveying belt, the pushing seat 2019 moves towards the turnover assembly along with the pushing belt pulley 2017, the pushing rod 2020 moves along with the pushing belt pulley 2017, and then the PCB 11 is pushed towards the turnover assembly.

In this embodiment: the limiting sliding mechanism comprises a feeding limiting rod 206 fixed to the top end of the feeding side plate 202 and below one end of a left correcting beam 204 and a right correcting beam 205, the left correcting beam 204 and one end of the right correcting beam 205 are sleeved and connected with the feeding limiting rod 206 movably, the left correcting beam 204 and the other end of the right correcting beam 205 are below the other end of the feeding side plate 202, a feeding sliding rail 207 is fixedly connected to the top end of the feeding side plate 207, the other end of the left correcting beam 204 and the other end of the right correcting beam 205 are clamped on the feeding sliding rail 207, and the left correcting beam and the right correcting beam can move left and right on the feeding sliding rail 207 through a stepping motor 208 fixed to one end of the feeding sliding rail 207. The specific process of pushing the PCB 11 by the operation of the limiting sliding mechanism is that the stepping motor 208 operates to drive one end of the left correcting beam 204 and one end of the right correcting beam 205 to be away from the feeding slide rail 207, at this time, the other end of the left correcting beam 204 and the other end of the right correcting beam 205 move along with the feeding limit rod 206, then the correcting cylinder 2011 operates to drive the correcting lifting plate 2012 to descend, and the stepping motor 208 operates again to drive the left correcting beam 204 and the right correcting beam 205 to be close to each other, so as to drive the left middle pushing rod 2018 and the right middle pushing rod 2013 to be close to each other to push the PCB 11 to the middle position.

In this embodiment: the upset subassembly is including fixing the upset bottom plate 301 in frame 1, and the top terminal surface one side fixedly connected with upset backup pad 302 of upset bottom plate 301, and a side fixedly connected with upset motor 303 of upset backup pad 302, and the opposite side swing joint of upset backup pad 302 has upset seat 304, and upset seat 304 and upset motor 303 output fixed connection, and the top of upset seat 304 is equipped with lift flange mechanism. The overturning assembly is in a horizontal state in an initial state, namely, the lifting board receiving mechanism is horizontally located in the material loading gap 203, when the material loading pushing mechanism pushes the PCB 11 to the side edge until the PCB is contacted with the lifting board receiving mechanism, the overturning motor 303 operates to drive the overturning seat 304 to overturn for ninety degrees and erect, and then the lifting board receiving mechanism is driven to erect.

In this embodiment: the lifting plate connecting mechanism comprises a turning lead screw 306 penetrating through the top wall of a turning seat 304, a turning lifting motor 305 is fixedly connected to one side of the bottom end of the turning seat 304, the output end of the turning lifting motor 305 is connected with the bottom end of the turning lead screw 306 through a belt gear in a transmission manner, a turning lifting seat 307 is connected to the outer side face of the turning lead screw 306 in a threaded manner, a turning clamping plate 309 is fixedly connected to the top end of the side of the turning lifting seat 307, a turning limiting mechanism is arranged between the turning clamping plate 309 and the turning lifting seat 307, a turning limiting seat 3010 is arranged at the top end of the turning lead screw 306, and the top end of the turning lead screw 306 is clamped inside the turning limiting seat 3010 and can rotate. After the PCB board 11 is pushed to the side edge by the feeding pushing mechanism, one side edge of the PCB board 11 is clamped in the turnover clamping board 309, at the moment, the operation stepping motor 208 drives the left correction beam 204 and the right correction beam 205 to be away from each other to provide a space for turnover of the turnover assembly, after the turnover assembly is turned for ninety degrees, the turnover lifting motor 305 operates to drive the turnover lead screw 306 to rotate, the turnover lifting seat 307 slowly rises under the limiting action of the turnover limiting seat 3010 and the turnover limiting mechanism, then the turnover clamping board 309 and the PCB board 11 thereon are driven to vertically rise, and the PCB board 11 is connected with the clamping rotating assembly after the turnover lifting seat 307 rises to a certain height.

In this embodiment: the overturning limiting mechanism comprises two overturning limiting shafts 308 which are arranged in parallel, the overturning limiting shafts 308 are fixed on one side of the overturning lead screw 306, and the two overturning limiting shafts 308 sequentially penetrate through the side walls of the overturning lifting seat 307 and the overturning limiting seat 3010. In the ascending process of the turnover lifting seat 307, the turnover limiting shaft 308 limits the turnover lifting seat 307, so that the turnover lifting seat 307 cannot rotate along with the turnover screw 306 and can only ascend and descend.

In this embodiment: the top ends of the two overturn limiting shafts 308 are fixedly connected with a reinforcing block together. The arrangement of the reinforcing blocks improves the structural stability of the two turnover limiting shafts 308, and deviation is avoided.

In this embodiment: the side of the turnover clamping plate 309 is provided with a bayonet groove. The bayonet slot is provided to facilitate the flipping of the card 309 to clamp the edge of the PCB 11.

In this embodiment: the top end face of the turnover bottom plate 301 and one side of the turnover seat 304 are fixedly connected with limiting supporting blocks, and the limiting supporting blocks are in contact with the turnover seat 304 after the turnover seat 304 is turned outwards by ninety degrees. After the turnover assembly is conveyed to the PCB 11, the turnover assembly is turned ninety degrees again to return to the original position, and the limiting support block is arranged to drag the turnover assembly at the moment so as to ensure that the turnover assembly is in a horizontal position.

In this embodiment: centre gripping rotating assembly includes the rotating electrical machines 402 of swing joint on 1 top in the frame, and the top output end fixedly connected with swivel mount 401 of rotating electrical machines 402, the first fixed block 403 of bottom corner position fixedly connected with of swivel mount 401, and one side fixedly connected with second fixed block 404 of first fixed block 403, be equipped with concave splint 405 between first fixed block 403 and the second fixed block 404, and be equipped with linear bearing 406 between concave splint 405 and the first fixed block 403, the inside swing joint of linear bearing 406 has the interior pole, linear bearing 406's both sides fixedly connected with spring post 407, second fixed block 404 below is equipped with rectangular slab 408, and the rectangular slab 408 top is pressed from both sides between second fixed block 404 and splint 405, the concave type diaphragm 409 of rectangular slab 408's side top fixedly connected with, and a plurality of evenly distributed's rectangular channel 4010 has been seted up to rectangular slab 408's side, the both sides of rectangular slab 408 are equipped with fixture. Treat that PCB board 11 is sent the take the altitude by the upset subassembly after, fixture cliies PCB board 11, and PCB board 11 this moment has been shifted to the centre gripping rotating assembly on, afterwards, rotating electrical machines 402 operation drives swivel mount 401 and rotates ninety degrees, and PCB board 11 follows the rotation, and at this moment, the centre gripping rotating assembly gives PCB board 11 and goes up and down to go up the tin subassembly.

In this embodiment: fixture includes the axostylus axostyle 4011 of swing joint in rectangular slat 408 side, and the top swing joint of axostylus axostyle 4011 has roller bearing 4017, fixedly connected with torsion spring 4014 on the axostylus axostyle 4011 lateral surface of roller bearing 4017 below, and torsion spring 4014's both ends support respectively in diaphragm 409 side and rectangular slat 408 side, axostylus axostyle 4011's bottom fixedly connected with activity clip 4012, the fixed clip 4013 of the position fixedly connected with that activity clip 4012 corresponds in rectangular slat 408 bottom, be equipped with on the frame 1 of swivel mount 401 both sides and push away the roller mechanism. Fixture's specific use does, it promotes roller bearing 4017 to open to both sides to push away roller mechanism, axostylus axostyle 4011 at this moment takes place to rotate, and then drive movable clip 4012 and open, treat that PCB board 11 rises when a take the altitude to be located between movable clip 4012 and the fixed clip 4013, push away roller mechanism and return the normal position, at this moment, torsion spring 4014 drives axostylus axostyle 4011 and rotates original position, and then drive movable clip 4012 and draw close to fixed clip 4013, then make movable clip 4012 clip PCB board 11 with fixed clip 4013.

In this embodiment: the roller pushing mechanism comprises clamping air cylinders 4015 fixed on the machine frames 1 on two sides of the rotating frame 401, and the output ends of the clamping air cylinders 4015 face the rotating frame 401 and are fixedly connected with pushing plates 4016. When the roller pushing mechanism operates, the clamping cylinder 4015 pushes the push plate 4016, and the push plate 4016 pushes the two sides after advancing to contact with the roller bearing 4017.

In this embodiment: the roller bearings 4017 are at the same height as the push plate 4016. This arrangement ensures that the push plate 4016 pushes against the roller bearing 4017.

In this embodiment: teeth are arranged on the opposite surfaces of the movable clamp 4012 and the fixed clamp 4013. The arrangement of the teeth can improve the stability of the movable clamp 4012 and the fixed clamp 4013 for clamping the PCB 11.

In this embodiment: an anti-bending mechanism is sleeved inside the spring post 407. The anti-buckling mechanism can prevent the spring post 407 from buckling.

In this embodiment: the anti-bending mechanism comprises a limiting linear bearing fixed on the side surface of the concave clamping plate 405, a limiting inner rod is movably connected inside the limiting linear bearing, and one end of the limiting inner rod is fixed on the side surface of the first fixing block 403. When the spring column 407 is compressed or extended, the inner limiting rod moves inside the linear limiting bearing, so that the spring column 407 is prevented from bending.

In this embodiment: the lifting tinning component comprises a lifting bottom plate 501 fixed on the frame 1 and a lifting motor 502 fixed above the lifting bottom plate 501, the top end of the lifting bottom plate 501 is fixedly connected with a tinning fixing seat 503, the side face of the tinning fixing seat 503 is movably connected with a tinning belt pulley 504, the tinning belt pulley 504 and the output end of the lifting motor 502 are in transmission through a tinning belt 505, a tinning lifting seat 508 is fixedly connected onto the outer side face of the tinning belt 505, a tinning clamping seat 509 is fixedly connected onto the side face of the tinning lifting seat 508, one end of the tinning clamping seat 509 is movably connected with a pneumatic clamping jaw 5011, a tinning cylinder 5010 connected with the pneumatic clamping jaw 5011 is arranged inside the tinning clamping seat 509, and a tinning limiting mechanism is arranged between the tinning clamping seat 509 and the lifting bottom plate 501. When the clamping rotating assembly transfers the PCB 11 to the position of the lifting tinning assembly, firstly, the tinning cylinder 5010 operates to drive the pneumatic clamping jaw 5011 to clamp the transverse plate 409, then the lifting motor 502 operates to drive the tinning belt 505 to rotate, the tinning lifting seat 508 descends along with the tinning belt 505, then the pneumatic clamping jaw 5011 drives the long strip plate 408 and the PCB 11 to descend along with the tinning belt 505, the PCB 11 descends to a certain position and then undergoes a tinning process, after the tinning process is completed, the lifting motor 502 operates again to lift the PCB 11 to a proper position and enable the long strip plate 408 and the PCB 11 to be held by the clamping rotating assembly again, and the rotating motor 402 of the clamping rotating assembly operates again to rotate ninety degrees to send the PCB 11 to the limiting release assembly.

In this embodiment: the tinning limiting mechanism comprises two parallel tinning limiting rods 506 fixed on the top end face of the lifting bottom plate 501, and the top ends of the tinning limiting rods 506 penetrate through the tinning lifting seat 508. In the process of lifting the upper tin lifting seat 508, the upper tin limiting rod 506 limits the upper tin lifting seat 508 to move only up and down but not rotate.

In this embodiment: a tinning limiting plate 507 is fixedly connected between the two tinning limiting rods 506, and the top end of the tinning limiting plate 507 penetrates through a tinning lifting groove formed in the tinning lifting seat 508. The tinning limit plate 507 not only can further limit the tinning lifting seat 508 to move only up and down, but also can provide shielding protection for the back tinning belt 505.

In this embodiment: the top end and the bottom end of the outer side surfaces of the two tinning limiting rods 506 are fixedly connected with limiting sleeves. The limiting sleeve is arranged to prevent the tin-coating lifting seat 508 from rising or falling too far.

In this embodiment: the lifting tinning assembly further comprises a tinning pushing cylinder 5012, the tinning pushing cylinder 5012 is fixed to the top end edge of the rack 1 between the overturning assembly and the limiting release assembly, and the output end of the tinning pushing cylinder 5012 is fixedly connected with a concave push plate 5013. In the process of transferring the PCB 11 to the lifting tinning assembly by the clamping rotating assembly, the tinning pushing cylinder 5012 can facilitate the process, that is, the tinning pushing cylinder 5012 operates to push the concave push plate 5013 to move towards the concave clamp plate 405, the concave clamp plate 405 is pushed by the concave push plate 5013 to move inwards, the inner rod at this time generates relative displacement inside the linear bearing 406, the spring column 407 is compressed, the long strip 408 originally clamped by the concave clamp plate 405 and the second fixed block 404 is loosened, so that the lifting tinning assembly can drive the long strip 408 to descend conveniently, after the tin spraying process is completed, the lifting tinning assembly drives the long strip 408 to ascend, after the top end of the long strip 408 enters the space between the concave clamp plate 405 and the second fixed block 404 again, the tinning pushing cylinder 5012 operates to drive the concave push plate 5013 to return to the original position, at this time, the spring column 407 releases elastic potential energy to push the concave clamp plate 405 towards the second fixed block 404, and further clamp the long strip 408 again.

In this embodiment: the concave push plate 5013 has a groove facing the upper tin lift pedestal 508. This arrangement ensures that the concave push plate 5013 does not push against the second securing block 404.

In this embodiment: spacing release subassembly is including fixing release bottom plate 601 in frame 1, and top one side fixedly connected with release backup pad 602 of release bottom plate 601, the side fixedly connected with release rotating electrical machines 603 of release backup pad 602, and the output of release rotating electrical machines 603 runs through release backup pad 602 and fixedly connected with release roating seat 604, the top swing joint of release roating seat 604 has release lifting seat 606, and release roating seat 604 bottom fixedly connected with release lifting cylinder 605, the top output of release lifting cylinder 605 runs through release roating seat 604 and with release lifting seat 606 bottom fixed connection, and the top face fixedly connected with two parallel vertical plates 607 of release lifting seat 606, form perpendicular groove 608 between two vertical plates 607, and erect the inside lift card that is equipped with of groove 608 and fix the mechanism. When the clamping rotating assembly transfers the PCB 11 to the limiting releasing assembly, firstly, the lifting clamping and fixing mechanism operates to connect the PCB 11, then, the releasing lifting cylinder 605 operates to drive the releasing lifting seat 606 to descend, and further drives the vertical plate 607 and the lifting clamping and fixing mechanism to descend, finally, the releasing rotating motor 603 operates to drive the releasing rotating seat 604 to rotate ninety degrees, the vertical plate 607 is changed from the original vertical state to the horizontal state, and the limiting releasing assembly at the moment gives the PCB 11 to the blanking assembly.

In this embodiment: the lifting clamping mechanism comprises a releasing telescopic cylinder 609 fixed at the bottom end of the vertical groove 608, a vertical connecting rod 6010 is fixedly connected to the output end of the top of the releasing telescopic cylinder 609, an adapter 6012 is fixedly connected to the top end of the vertical connecting rod 6010, a push-pull rod 6013 is movably connected to the top of the adapter 6012, and a lever clamping head mechanism is arranged at the top end of the push-pull rod 6013. The specific working process of the lifting clamping mechanism is that the telescopic cylinder 609 is released to operate to push the vertical connecting rod 6010 to ascend, then the adapter 6012 is pushed to ascend, the adapter 6012 pushes the push-pull rod 6013 upwards, and at the moment, the push-pull rod 6013 pushes the lever clamping head mechanism to clamp the top edge of the PCB 11.

In this embodiment: the lever clamping mechanism comprises a lever clamping block 6014 movably connected to the top end of the push-pull rod 6013, the top ends of the two vertical plates 607 are fixedly connected with a release top plate 6015 together, a lever clamping groove is formed in the middle of the side face of the release top plate 6015, the middle of the lever clamping block 6014 is clamped in the lever clamping groove and movably connected through a penetrating rotating pin, one end of the lever clamping block 6014 is fixedly connected with a movable clamping block 6016, and the bottom end of one side face, close to the movable clamping block 6016, of the release top plate 6015 is fixedly connected with a fixed clamping block 6017. The lever clamping head mechanism is specifically operated in such a way that when the push-pull rod 6013 pushes the lever clamping block 6014 of the lever clamping head mechanism, the lever clamping block 6014 rotates in the lever clamping groove in a lever manner, the movable clamping block 6016 moves downwards and extends towards the direction of the rotating motor 402 until the bottom end of the movable clamping block 6016 is flush with the bottom end of the fixed clamping block 6017, the PCB 11 is clamped between the movable clamping block 6016 and the fixed clamping block 6017, and the lever clamping head mechanism is driven to descend by releasing the lifting cylinder 605, so that the top edge of the PCB 11 is deeply clamped between the movable clamping block 6016 and the fixed clamping block 6017.

In this embodiment: a tooth rack is fixedly connected to one side surface of the fixed clamp block 6017 away from the release top plate 6015. The arrangement of the tooth racks can facilitate the fixing of the clamping block 6017 to clamp the PCB 11 better.

In this embodiment: a release limiting seat 6011 is fixedly connected to the middle position inside the vertical groove 608, and the top end of the vertical connecting rod 6010 penetrates through the release limiting seat 6011. The arrangement of the release limiting seat 6011 limits the vertical connecting rod 6010 to move up and down only.

In this embodiment: four corners of the top end surface of the release rotating base 604 are fixedly connected with lifting guide rods, and the top ends of the lifting guide rods penetrate through the release lifting base 606. The lift guide bar improves the stability of the release lift shoe 606 during the lift process.

In this embodiment: the blanking assembly comprises a blanking table 701 fixed on the other side of the rack 1, a blanking movable side plate 705 is movably connected to one side edge of the top end face of the blanking table 701, a blanking fixed side plate 706 is fixedly connected to the other side edge of the top end face of the blanking table 701, blanking notches 7010 are formed in the middle of the blanking movable side plate 705 and the middle of the blanking fixed side plate 706, a plurality of conical guide pulleys 709 are movably connected to the opposite side faces of the blanking movable side plate 705 and the blanking fixed side plate 706 in parallel, a blanking belt pulley 7011 is fixedly connected to one end of each conical guide pulley 709, a blanking motor 7013 is fixedly connected to the lower portion of each blanking notch 7010, the blanking motors 7013 are connected with the blanking belt pulleys 7011 in a belt transmission mode, and an interval adjusting mechanism is arranged between the blanking movable side plate 705 and the blanking fixed side plate 706. After the lever chuck mechanism clamps the PCB 11, the limiting and releasing assembly turns the PCB 11 ninety degrees to be sent to the blanking assembly, the turned limiting and releasing assembly is located in the blanking gap 7010, the PCB 11 on the turning limiting and releasing assembly is supported by the conical transmission wheel 709, the blanking motor 7013 operates to drive each blanking belt pulley 7011 to rotate, then the conical transmission wheel 709 is driven to rotate, and the PCB 11 is driven to advance by the rotating conical transmission wheel 709.

In this embodiment: spacing adjustment mechanism is including being located the lead screw 708 of unloading breach 7010 both sides, and the one end swing joint of lead screw 708 is on the fixed curb plate 706 of unloading, the other end of lead screw 708 passes unloading activity curb plate 705 and rather than threaded connection, the both sides of lead screw 708 are equipped with spacing optical axis 707, and the one end swing joint of spacing optical axis 707 is on the fixed curb plate 706 of unloading, unloading activity curb plate 705 is run through to the other end of spacing optical axis 707, one side top fixedly connected with spacing adjustment motor 7012 of unloading motor 7013, and be connected through belt transmission between spacing adjustment motor 7012 and the lead screw 708 one end. When the distance between the two tapered guide wheels 709 at the two sides is not enough to support the PCB 11, the lead screw 708 is driven to rotate only by the operation of the distance adjusting motor 7012, and at this time, the blanking movable side plate 705 moves along the lead screw 708 under the limiting action of the limiting optical axis 707, so as to adjust the distance between the blanking fixed side plate 706 and the blanking movable side plate 705.

In this embodiment: and a spacing limiting sleeve is fixedly connected to the outer side surface of the limiting optical axis 707. The spacing sleeve prevents the blanking movable side plate 705 from being too close to the blanking fixed side plate 706.

In this embodiment: the diameter of the cross section of the tapered guide pulley 709 gradually decreases from the top edge of the blanking table 701 to the middle of the top of the blanking table 701. This arrangement ensures that the tapered conducting rollers 709 are better able to hold the PCB 11.

In this embodiment: a fan supporting plate 702 is fixedly connected to one side of the top end surface of the blanking table 701, a plurality of upper fans 703 distributed in an array are embedded in the top end surface of the fan supporting plate 702, and a lower fan 704 is correspondingly embedded in the top end surface of the blanking table 701 below the upper fans 703. When the PCB 11 is conveyed between the upper fan 703 and the lower fan 704 by the tapered guide roller 709, the upper fan 703 and the lower fan 704 blow air to the PCB 11.

In this embodiment: the upper fan 703 is opposite to the blowing direction of the lower fan 704. The air blown by the upper fan 703 and the lower fan 704 forms air convection further accelerates the liquid tin drying on the PCB 11.

The utility model discloses a theory of operation is: firstly, the PCB 11 to be subjected to tin spraying is placed on the roller conveying mechanism, the roller conveying mechanism drives the PCB 11 to move forwards, when the PCB moves to the right middle pushing rod 2013, the correcting cylinder 2011 operates to drive the correcting lifting plate 2012 to ascend, further drives the right middle pushing rod 2013 to ascend to release the PCB 11, the PCB 11 continues to advance until the PCB meets the blocking of the left middle pushing rod 2018, at the moment, the limiting sliding mechanism operates to push the PCB 11 in, and then the PCB 11 is pushed towards the overturning component through the feeding pushing mechanism. The upset subassembly is in the horizontality under the initial state, lift and connect board mechanism level to be located in material loading breach 203 promptly, after material loading pushing mechanism promoted PCB board 11 to the side, 11 one side border card of PCB board is in upset cardboard 309, at this moment, operation step motor 208 drives left correction crossbeam 204 and right correction crossbeam 205 and keeps away from each other and provides the space for the upset of upset subassembly, treat that the upset subassembly upset ninety degrees sticks up the back, upset elevator motor 305 moves and drives upset lead screw 306 rotatory, upset seat 307 slowly rises under the limiting displacement of upset spacing seat 3010 and upset stop gear, and then drive the vertical rising of PCB board 11 of upset cardboard 309 and above, treat to rise to receive PCB board 11 by centre gripping rotating assembly after the take the altitude. Treat that PCB board 11 is sent to the take the altitude by the upset subassembly after, fixture cliies PCB board 11, and PCB board 11 this moment has been shifted to the centre gripping rotating assembly on, afterwards, rotating electrical machines 402 operation drives swivel mount 401 and rotates ninety degrees, and PCB board 11 follows the rotation, and at this moment, the centre gripping rotating assembly gives PCB board 11 to the lift and goes up tin subassembly. When the clamping rotary assembly transfers the PCB 11 to the position of the lifting tinning assembly, firstly, the tinning cylinder 5010 operates to drive the pneumatic clamping jaw 5011 to clamp the transverse plate 409, then, the tinning push cylinder 5012 operates to push the concave push plate 5013 to move towards the concave clamping plate 405, the concave clamping plate 405 is pushed by the concave push plate 5013 to move inwards, the inner rod at this time is relatively displaced inside the linear bearing 406, the spring column 407 is compressed, the long strip 408 originally clamped by the concave clamping plate 405 and the second fixing block 404 is released, then, the lifting motor 502 operates to drive the tinning belt 505 to rotate, the tinning lifting seat 508 descends along with the tinning belt 505, the long strip 408 and the PCB 11 are driven by the pneumatic clamping jaw 5011 to descend, the PCB 11 descends to a certain position and then is subjected to the tin spraying process, after the tin spraying process is completed, the lifting tinning assembly drives the long strip 408 to ascend, the top end of the long strip 408 enters between the concave clamping plate 405 and the second fixing block 404 again, the concave push cylinder 5012 operates to drive the concave push plate 5013 to release the concave push the spring strip 408 again, and the clamping plate 408 again to clamp the PCB 408 to clamp the PCB 11 again, and the PCB 408 is released, and the PCB 408 is clamped by the elastic clamping rotary clamping plate 402 again, and the spring clamp assembly. When the clamping rotating assembly transfers the PCB 11 to the limiting and releasing assembly, firstly, the lifting and clamping mechanism operates to catch the PCB 11, then, the releasing lifting cylinder 605 operates to drive the releasing lifting seat 606 to descend, and further drive the vertical plate 607 and the lifting and clamping mechanism to descend, finally, the releasing rotating motor 603 operates to drive the releasing rotating seat 604 to rotate ninety degrees, the vertical plate 607 changes from the original vertical state to the horizontal state, the limiting and releasing assembly at the moment sends the PCB 11 to the blanking assembly, specifically, after the lever chuck mechanism clamps the PCB 11, the limiting and releasing assembly overturns the PCB 11 ninety degrees and sends the PCB 11 to the blanking assembly, the overturned limiting and releasing assembly is located in the blanking gap 7010, the PCB 11 thereon is supported by the conical transmission wheel 709, the blanking motor 7013 operates to drive each blanking pulley 7011 to rotate, and then drive the conical transmission wheel 709 to rotate, and the PCB 11 is driven by the rotating conical transmission wheel 709 to advance.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides a go up and down to go up tin subassembly, its characterized in that includes lifting bottom plate and fixes the elevator motor in lifting bottom plate top, and lifting bottom plate's top fixedly connected with tin-feeding fixing base, the side swing joint of tin-feeding fixing base has the tin-feeding belt pulley, and passes through tin-feeding belt transmission between tin-feeding belt pulley and the elevator motor output, fixedly connected with tin-feeding lift seat on the lateral surface of tin-feeding belt, and the side fixedly connected with tin-feeding grip slipper of tin-feeding lift seat, the one end swing joint of tin-feeding grip slipper has pneumatic clamping jaw, and the inside of tin-feeding grip slipper is equipped with the tin-feeding cylinder of being connected with pneumatic clamping jaw, be equipped with tin-feeding stop gear between tin-feeding grip slipper and the lifting bottom plate.

2. The tin feeding assembly of claim 1, wherein the tin feeding limiting mechanism comprises two parallel tin feeding limiting rods fixed on the top end face of the lifting bottom plate, and the top ends of the tin feeding limiting rods penetrate through the tin feeding lifting seat.

3. The lifting tinning assembly according to claim 2, wherein a tinning limiting plate is fixedly connected between the two tinning limiting rods, and the top end of the tinning limiting plate penetrates through a tinning lifting groove formed in the tinning lifting seat.

4. The tin assembly of claim 2, wherein the top end and the bottom end of the outer side of the two tin limiting rods are fixedly connected with limiting sleeves.

5. The tin feeding assembly as claimed in claim 1, further comprising a tin feeding pushing cylinder fixed to a top edge of the rack between the turnover assembly and the limiting and releasing assembly, wherein a concave pushing plate is fixedly connected to an output end of the tin feeding pushing cylinder.

6. The tin assembly of claim 5, wherein the concave push plate has a groove facing the tin lift seat.

7. A tin spraying machine, characterized by comprising the lifting tin-coating assembly according to any one of claims 1 to 6, and the PCB board spliced by the lifting tin-coating assembly is clamped and descended to prepare tin spraying.

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