CN112278741A

CN112278741A - Conveying mechanism and conveying method for PCB

Info

Publication number: CN112278741A
Application number: CN202011102675.9A
Authority: CN
Inventors: 李军
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-01-29

Abstract

The invention discloses a conveying mechanism and a conveying method of a PCB (printed circuit board), which comprise a bottom plate, a conveying roller, a conveying belt tensioning unit, a conveying belt, a conveying disc quick-dismantling unit and a conveying disc, wherein the conveying disc quick-dismantling unit is arranged on the bottom plate; the utility model discloses a PCB conveying device, including bottom plate, conveyer belt tensioning unit, conveyer belt, the position of bottom plate is equipped with the pillar that corresponds around two respectively around the top left side of bottom plate, the top of pillar is equipped with the mount pad respectively around the top right side of bottom plate, the position is provided with the conveying roller respectively around the top right side of bottom plate around the mount pad that corresponds around other two, the top of pillar is equipped with the mount pad respectively, be provided with the conveying roller respectively between the mount pad that corresponds around the left side around and between the mount pad that corresponds around the right side around and between, can make the conveyer belt tensioning, guarantee the position accuracy of carrying, carry the PCB circuit board through fixing the delivery tray on the conveyer belt, position when can guaranteeing that PCB circuit board carries is firm.

Description

Conveying mechanism and conveying method for PCB

Technical Field

The invention relates to the technical field of PCB (printed circuit board) conveying, in particular to a conveying mechanism and a conveying method for a PCB.

Background

In industrial production, in order to improve the production and processing efficiency, the production line is adopted at present, the production line is also adopted when the PCB is produced, a conveying mechanism is required to convey the PCB from one station to the next station on the production line, and if the PCB is directly placed on a conveying belt for conveying, the position is unstable and the PCB is easy to damage;

the PCB circuit boards are mainly placed in a material box mode in the existing production line, the PCB circuit boards with different specifications are conveniently replaced in the mode, the position of the material box is not fixed, the placing deviation can be caused to influence the subsequent processing, and if static electricity exists in the PCB circuit boards in the material box, the electrical components mounted subsequently can be influenced, so that the processing of the subsequent PCB circuit boards is easily influenced.

Disclosure of Invention

The invention aims to overcome the existing defects and provides a conveying mechanism and a conveying method for a PCB (printed circuit board), which can tension a conveying belt and ensure the accuracy of the conveying position, can ensure the stable position of the PCB during conveying by conveying the PCB through a conveying disc fixed on the conveying belt, avoids the influence of deviation on subsequent production caused by placement, is very convenient and quick to replace the conveying discs with different specifications, can lead out static electricity on the PCB, is beneficial to the production and processing of the subsequent PCB, and can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a conveying mechanism of a PCB comprises a bottom plate, a conveying roller, a conveying belt tensioning unit, a conveying belt, a conveying disc quick-dismantling unit and a conveying disc;

the PCB quick-release mechanism comprises a bottom plate, a conveying disc, a mounting block, a conveying disc quick-release unit, a conveying disc and a placing groove, wherein the front position and the rear position of the left side of the top of the bottom plate are respectively provided with two front-back corresponding supporting columns, the front position and the rear position of the right side of the top of the bottom plate are respectively provided with another two front-back corresponding supporting columns through a conveying belt tensioning unit, the tops of the supporting columns are respectively provided with a mounting seat, conveying rollers are respectively arranged between the front-back corresponding mounting seats on the left side and between the front-back corresponding mounting seats on the right side, the center of the end part of each conveying roller is fixedly connected with an end shaft, the end;

conveyer belt tensioning unit includes extension subassembly, buffering telescopic link and stabilizes the slip subassembly, and two pillar bottoms on right side are respectively through stabilizing slip subassembly and bottom plate installation, the extension subassembly includes tensioning axle, tensioning sleeve pipe, bearing, installation cover, key piece and swing arm, the middle part at the pillar of left side front end is fixed to the one end of tensioning axle, the other end threaded connection tensioning sleeve pipe's of tensioning axle one end, the tensioning sleeve pipe other end passes through the bearing and rotates the one end of connecting the buffering telescopic link, the middle part of the pillar of the other end fixed connection right side front end of buffering telescopic link, the one end outside that the tensioning sleeve pipe is close to the tensioning axle has cup jointed the installation cover through the key piece, angles such as the outside of installation cover are equipped with the swing arm.

The conveying roller is driven by external power and rotates both can drive the conveyer belt activity, the conveying dish of the different specifications of change that conveying dish quick detach unit can be convenient quick, PCB circuit board can be put into to standing groove on the conveying dish and carry the work, it is inaccurate to lead to the delivery position in order to prevent that the conveyer belt is not hard up, thereby can be through the increase of the distance of conveyer belt tensioning unit with two conveying rollers tensioning conveyer belt, during the tensioning, it drives the tensioning sleeve pipe through installation cover and key piece to rotate the swing arm, because screw action can make the tensioning axle stretch out the tensioning sleeve pipe, thereby increase the distance between two pillars of front side, thereby the tensioning conveyer belt, it can increase the stability that the right side front end pillar removed to stabilize sliding assembly, the buffering telescopic link can provide the buffering for the tensioning process.

Further, stabilize the slip subassembly and include rectangle spout, slider and slide bar, the rectangle spout is seted up on the bottom plate and is corresponded with the pillar bottom of right side front end, just the rectangle spout internal fixation has the slide bar that is located on the bottom connecting wire of two pillars of front end, slide bar and the slide opening sliding connection on the slider, and the pillar bottom at the right side front end is fixed to the slider.

When the pillar of right side front end kept away from the left pillar of front end, because the slip of slider and slide bar, can make the pillar of right side front end can the steady activity, the pillar activity of the conveying roller connection effect through the right side also can drive rear side rear end simultaneously.

Further, the buffering telescopic link includes sleeve, spout, sliding block, end cover, compression spring one and movable rod, telescopic closed end is connected with the bearing, telescopic open end is equipped with the movable rod, the spout of the open end of intercommunication of two symmetries is seted up to the sleeve inboard, be equipped with on the movable rod with spout sliding connection's sliding block, the inner and the telescopic closed end of movable rod are connected through compression spring one, and telescopic open end outside threaded connection has the end cover, the movable rod runs through the through-hole on the end cover.

Through the linkage effect of bearing, avoid the tensioning sleeve pipe to rotate and drive the sleeve and rotate, sliding connection through spout and sliding block also avoids sleeve and movable rod to slide, and internally mounted's compression spring one is used for providing the cushion effect, and sleeve parcel compression spring one protects.

The conveying roller is a hexagonal prism, the conveying belt is one of a rubber conveying belt or a canvas conveying belt, and the electrostatic leading-out units are arranged on the bottom plate and the conveying belt.

Every faceted pebble of hexagonal prism's conveying roller all corresponds with transfer dish quick detach unit, avoids the cambered surface of cylindrical conveying roller to cause the unstability of transfer dish quick detach unit installation, when adopting rubber conveyer belt or canvas conveyer belt, because its nonconducting nature can make PCB circuit board remain static easily, influences follow-up installation, consequently adopts static to draw forth the unit and draws forth electrostatic earth.

Further, the unit is drawn forth to static includes wire, metal gyro wheel, gyro wheel seat, earth connection, montant, flange and connecting wire, the side is along being equipped with annular wire behind the conveyer belt, the wire is respectively through every delivery tray quick detach unit of connecting wire connection, the position that corresponds the wire on the bottom plate is fixed with the montant through the flange, the top of montant is connected with the gyro wheel seat, and the earth connection is connected to the gyro wheel seat, there is the metal gyro wheel at the top of gyro wheel seat through shaft swing joint, metal gyro wheel and wire roll connection.

Conveying dish quick detach unit and conveying dish all adopt the conductor material, and PCB circuit board reserves static and switches on to connecting wire and wire through conveying dish quick detach unit and conveying dish, and when the conveyer belt was operated, thereby metal gyro wheel contacts with the wire often and passes through earth connection ground connection with static, and the structure of montant can adopt the structure of buffering telescopic link, can make metal gyro wheel have ascending buffer power, is favorable to the contact stability of metal gyro wheel and wire.

Further, the conveyer belt is metal chain type conveyer belt, the conveyer belt includes conveyer strip, connection piece one, connecting axle, connecting hole, connection piece two and feeds the recess, the conveyer strip is the rectangle structure, one side both ends of conveyer strip are equipped with connection piece one respectively, the connecting hole has been seted up to the side of connection piece one, the opposite side both ends of conveyer strip are equipped with connection piece two with connection piece one dislocation, connection piece both sides are fixed with the connecting axle with connecting hole complex, the conveyer strip is formed metal chain type conveyer belt through connection piece one and connection piece two swing joint end to end, the bottom array of conveyer strip is equipped with feeds the recess, be equipped with on the conveying roller with feed recess complex lug.

When the conveyer belt adopts the metal material, static can be through conveying dish quick detach unit and conveying dish, conveyer belt, pillar direct ground connection, can save other earthing device.

Further, delivery disc quick detach unit includes fixing base one, compression spring two, snap ring and steel ball, fixing base one is fixed on the conveyer belt, the draw-in groove has been seted up on the fixing base one, the circular slot has been seted up to both sides in the draw-in groove, compression spring two is connected to the tip in the circular slot, the snap ring is connected to compression spring two's outer end, the snap ring is connected with the steel ball, the installation piece is installed in the draw-in groove, and the arc wall cooperation joint of steel ball and installation piece both sides.

The steel ball is pressed into the arc-shaped groove through the second compression spring, the mounting block can be fixed in the clamping groove under certain force, the mounting block can be pulled out when large force is applied, and the conveying disc is convenient to disassemble.

Further, the conveying disc quick-release unit further comprises a first strong magnetic block and a second strong magnetic block, the first strong magnetic block is embedded at the bottom of the installation block, the second strong magnetic block is embedded at the bottom of the clamping groove, and the first strong magnetic block and the second strong magnetic block are close to each other and are attracted together in an opposite magnetic mode through one magnetic pole.

In order to solve the problem that the clamping force of the steel ball pressed into the arc-shaped groove is small, the first strong magnetic block and the second strong magnetic block can be further adopted for magnetic attraction, the connecting force of the mounting block and the clamping groove is improved, and meanwhile the conveying disc is still convenient to disassemble.

Further, delivery disc quick detach unit includes wedge fixture block, depression bar, fixing base two, button, installation cavity, compression spring three, fixing base two is fixed on the conveyer belt, the draw-in groove has been seted up on the fixing base two, the both sides of fixing base two set up crisscross each other and with the movable hole of draw-in groove bottom intercommunication, and still be equipped with the installation cavity with the draw-in groove intercommunication in the fixing base two respectively, run through respectively in two movable holes and be equipped with the depression bar, the outer end of depression bar is connected with the button, and the other end of depression bar extends to in the installation cavity and be connected with the wedge fixture block, this end of depression bar is passed through compression spring three with the side of installation cavity and is connected, the wedge draw-in groove has been seted up to the both sides of.

Pressing the button can make three compressions of compression spring through the depression bar to make the wedge fixture block break away from the wedge draw-in groove, thereby changing the delivery tray, this kind of mode joint dynamics is big, changes the back, loosens the button, and three resilience of compression spring, wedge fixture block card are gone into the wedge draw-in groove again and are fixed the delivery tray.

A method for conveying a conveying mechanism of a PCB comprises the following steps:

the method comprises the following steps: the end shaft of the left conveying roller is connected with an external power device through a transmission mechanism, so that the external power device drives the left conveying roller, and the conveying belt is driven to run between the two conveying rollers;

step two: placing the PCB in the placing groove of the conveying disc, fixing the conveying disc on the conveying belt through the conveying disc quick-detaching unit, and changing the position of the conveying disc along with the conveying belt so as to convey the PCB to a specified station;

step three: when PCB circuit boards of other specifications need to be conveyed, the original conveying disc is quickly dismounted through the conveying disc quick dismounting unit, and then the conveying disc of the corresponding specification is replaced, so that the quick replacement can be completed;

step four: when the rubber conveying belt or the canvas conveying belt which are non-conductor conveying belts are adopted, the static leading-out unit is used, static which can be carried on a PCB circuit board is led out through the conveying disc, the conveying disc quick-detaching unit and the static leading-out unit in sequence, and the influence on the use of a follow-up PCB circuit board is avoided.

Compared with the prior art, the invention has the beneficial effects that: the conveying mechanism and the conveying method for the PCB have the following advantages that:

1. the conveying roller is driven by external power and rotates and both can drive the conveyer belt activity, and the conveying dish of the different specifications of change that conveying dish quick detach unit can be convenient quick, and PCB circuit board can be accomplished to putting into to the standing groove on the conveying dish and carry the work.

2. In order to prevent that the conveyer belt is not hard up to lead to the delivery position inaccurate, thereby can be through the increase of the distance of conveyer belt tensioning unit with two conveying rollers tensioning conveyer belt, during the tensioning, it drives the tensioning sleeve pipe rotation through installation cover and key piece to rotate the swing arm, because the screw action can make the tensioning axle stretch out the tensioning sleeve pipe, thereby increase the distance between two pillars of front side, thereby the tensioning conveyer belt, it can increase the stability that right side front end pillar removed to stabilize the slip subassembly, the buffering telescopic link can provide the buffering for the tensioning process, avoid the too big conveyer belt that damages of tension.

2. The conveying belt can be tensioned, the conveying position accuracy is guaranteed, the PCB is conveyed through the conveying disc fixed on the conveying belt, the position of the PCB during conveying can be stable, the phenomenon that the subsequent production is influenced by the deviation caused by placing is avoided, the conveying disc with different specifications is very convenient and quick to replace, the static electricity on the PCB can be led out, and the production and processing of the subsequent PCB are facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is a schematic rear side view of the present invention;

FIG. 4 is a schematic rear bottom view of the present invention;

FIG. 5 is a schematic view of the structure of the buffering telescopic rod of the present invention;

FIG. 6 is a schematic structural diagram of a quick release unit of a conveying disc according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of another embodiment of a quick release unit of a conveying disc according to the present invention;

FIG. 8 is a schematic view of a conveyor belt according to the present invention;

fig. 9 is a schematic bottom view of the conveyor belt of the present invention.

In the figure: 1 bottom plate, 2 pillars, 3 mounting seats, 4 conveying rollers, 41 convex blocks, 5 end shafts, 6 conveying belt tensioning units, 61 tensioning shafts, 62 tensioning sleeves, 63 bearings, 64 buffer telescopic rods, 641 sleeves, 642 sliding chutes, 643 sliding blocks, 644 end covers, 645 first compression springs, 646 movable rods, 65 rectangular sliding chutes, 66 sliding blocks, 67 sliding rods, 68 mounting sleeves, 69 key blocks, 610 rotating rods, 7 conveying belts, 71 conveying strips, 72 connecting pieces I, 73 connecting shafts, 74 connecting holes, 75 connecting pieces II, 76 feeding grooves, 8 conveying disc units, 801 fixed seat I, 802 compression spring II, 803 snap rings, 804 strong magnet I, 805 strong magnet II, 806 steel balls, 811 wedge-shaped fixture blocks, 812 compression rods, 813 fixed seat II, 814 buttons, 815 mounting cavities, 816 compression springs III, 9 conveying discs, 91 placement grooves, 92 mounting blocks, 10 static leading-out units, 101, 102 metal roller wheels, 102 metal roller leading-out units, 103 roller seats, 104 grounding wires, 105 vertical rods, 106 flanges and 107 connecting wires.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, please refer to fig. 1 to 6, the present embodiment provides a technical solution: a conveying mechanism of a PCB comprises a bottom plate 1, a conveying roller 4, a conveying belt tensioning unit 6, a conveying belt 7, a conveying disc quick-dismantling unit 8 and a conveying disc 9; the base plate 1 is disposed on a shop floor and is treated for conductor grounding.

The front and back positions of the left side of the top of the bottom plate 1 are respectively provided with two front and back corresponding supporting columns 2, the front and back positions of the right side of the top of the bottom plate 1 are respectively provided with another two front and back corresponding supporting columns 2 through conveying belt tensioning units 6, the top of each supporting column 2 is respectively provided with a mounting seat 3, conveying rollers 4 are respectively arranged between the front and back corresponding mounting seats 3 on the left side and between the front and back corresponding mounting seats 3 on the right side, the end part centers of the conveying rollers 4 are fixedly connected with end shafts 5, the end shafts 5 are rotatably connected with the mounting seats 3, the two conveying rollers 4 are in transmission connection through conveying belts 7, conveying disc quick-detaching units 8 are arranged on the conveying belts 7 at equal intervals, the conveying disc quick-detaching units 8 are clamped with mounting blocks 92 arranged at the bottoms of;

conveying dish quick detach unit 8 includes fixing base 801, two compression spring 802, snap ring 803 and steel ball 806, and fixing base 801 is fixed on conveyer belt 7, has seted up the draw-in groove on the fixing base 801, and the circular slot has been seted up to both sides in the draw-in groove, and two compression spring 802 are connected to the tip of circular slot medial extremity, and snap ring 803 is connected to the outer end of two compression spring 802, and snap ring 803 is connected with steel ball 806, and installation piece 92 is installed in the draw-in groove, and steel ball 806 and the arc wall cooperation joint of installation piece 92 both sides.

Through two 802 compression springs with steel ball 806 impress to the arc wall in, can fix the installation piece 92 in the draw-in groove under certain dynamics, can pull out installation piece 92 when exerting strong dynamics, make things convenient for the dismantlement of delivery disc 9.

The conveying disc quick-release unit 8 further comprises a first strong magnet 804 and a second strong magnet 805, the first strong magnet 804 is embedded at the bottom of the mounting block 92, the second strong magnet 805 is embedded at the bottom of the clamping groove, and the magnetic poles of the first strong magnet 804 and the second strong magnet 805 which are close to each other are oppositely magnetically attracted together.

In order to solve the problem that the clamping force of the steel ball 806 pressed into the arc-shaped groove is small, magnetic attraction of the first strong magnet block 804 and the second strong magnet block 805 can be further adopted, the connecting force of the mounting block 92 and the clamping groove is improved, and meanwhile the conveying disc 9 is still convenient to disassemble.

Conveyer belt tensioning unit 6 includes the extension subassembly, buffering telescopic link 64 and stable slip subassembly, 2 bottoms of two pillars on right side are respectively through stable slip subassembly and bottom plate 1 installation, the extension subassembly includes tensioning axle 61, tensioning sleeve 62, bearing 63, installation cover 68, key block 69 and swing arm 610, the middle part at the pillar 2 of left side front end is fixed to the one end of tensioning axle 61, the one end of tensioning sleeve 62 is connected to the other end threaded connection of tensioning axle 61, the other end of tensioning sleeve 62 passes through bearing 63 and rotates the one end of connecting buffering telescopic link 64, the middle part of the pillar 2 of the other end fixed connection right side front end of buffering telescopic link 64, tensioning sleeve 62 is close to the one end outside of tensioning axle 61 and has cup jointed installation cover 68 through key block 69, the angle such as the outside of installation cover 68 is equipped with a plurality of swing arms 610.

The conveying roller 4 is driven by external power to rotate, so that the conveying belt 7 can be driven to move, the conveying disc quick-dismantling unit 8 can conveniently and quickly replace the conveying discs 9 with different specifications, the PCB can be placed in the placing groove 91 on the conveying disc 9 to finish the conveying work, in order to prevent the conveying position from being inaccurate due to the loosening of the conveying belt 7, the distance between the two conveyor rollers 4 can be increased by means of the conveyor belt tensioning unit 6 in order to tension the conveyor belt 7, which, when tensioned, the rotation lever 610 rotates the tension sleeve 62 through the mounting sleeve 68 and the key block 69, the tensioning shaft 61 can be made to protrude out of the tensioning sleeve 62 due to the screw action, thereby increasing the distance between the two pillars 2 on the front side, thereby tensioning conveyer belt 7, the stability that the subassembly that steadily slides can increase the removal of right side front end pillar 2, buffering telescopic link 64 can provide the buffering for the tensioning process, avoids the too big damage conveyer belt 7 of tension.

Stabilize the slip subassembly and include rectangle spout 65, slider 66 and slide bar 67, rectangle spout 65 is seted up on bottom plate 1 and is corresponded with 2 bottoms of pillar of right side front end, and rectangle spout 65 internal fixation has the slide bar 67 that is located on the bottom connecting wire of two pillars 2 of front end, slide bar 67 and the slide opening sliding connection on the slider 66, and slider 66 fixes 2 bottoms of pillar at the right side front end.

When the pillar 2 at the front end of the right side is far away from the pillar 2 at the left side of the front end, the pillar 2 at the front end of the right side can stably move due to the sliding of the sliding block 66 and the sliding rod 67, and meanwhile, the pillar 2 at the rear end of the rear side can also be driven to move through the connection effect of the conveying roller 4 at the right side.

The buffering telescopic rod 64 comprises a sleeve 641, a sliding groove 642, a sliding block 643, an end cover 644, a compression spring 645 and a movable rod 646, wherein the closed end of the sleeve 641 is connected with the bearing 63, the open end of the sleeve 641 is provided with the movable rod 646, the inner side of the sleeve 641 is provided with two symmetrical sliding grooves 642 communicated with the open end, the movable rod 646 is provided with the sliding block 643 in sliding connection with the sliding grooves 642, the inner end of the movable rod 646 is connected with the closed end of the sleeve 641 through the compression spring 645, the outer side of the open end of the sleeve 641 is in threaded connection with the end cover 644, and the movable rod 646 penetrates through a through hole in.

Through the connection of the bearing 63, the rotation of the tension sleeve 62 and the rotation of the sleeve 641 are prevented, the sliding connection of the sliding groove 642 and the sliding block 643 is also used for preventing the sliding of the sleeve 641 and the movable rod 646, the internally installed compression spring 645 is used for providing a buffering force, and the sleeve 641 is covered by the compression spring 645 for protection.

The electrostatic drawing unit 10 is further included, the conveying roller 4 is a hexagonal prism, the conveying belt 7 is one of a rubber conveying belt or a canvas conveying belt, and the electrostatic drawing unit 10 is installed on the bottom plate 1 and the conveying belt 7.

The conveying roller 4 of hexagonal prism makes the conveyer belt 7 also be the faceted pebble when passing through the conveying roller 4 outside, and every faceted pebble all corresponds with a fixing base 801 of delivery disc quick detach unit 8, avoids the cambered surface of columniform conveying roller 4 to cause the unstability of the installation of delivery disc quick detach unit 8, when adopting rubber conveyor belt or canvas conveyer belt, because its nonconducting nature, can make the PCB circuit board remain static easily, influences follow-up installation, consequently adopts static to draw forth unit 10 and draws forth electrostatic ground.

The electrostatic leading-out unit 10 comprises a lead 101, a metal roller 102, a roller seat 103, a grounding wire 104, a vertical rod 105, a flange 106 and a connecting wire 107, the rear side edge of the conveyer belt 7 is provided with an annular lead 101, the lead 101 is respectively connected with each conveying disc quick-release unit 8 through the connecting wire 107, the position, corresponding to the lead 101, on the bottom plate 1 is fixedly provided with the vertical rod 105 through the flange 106, the top of the vertical rod 105 is connected with the roller seat 103, the roller seat 103 is connected with the grounding wire 104, the top of the roller seat 103 is movably connected with the metal roller 102 through a wheel shaft, and the metal roller 102 is in. For example, a plurality of connecting wires 107 are vertically electrically connected to the guide 101, and the metal roller 102 rotatably abuts against the edge of the conveyor belt 7 to electrically connect with the wires 101.

Conveying dish quick detach unit 8 and conveying dish 9 all adopt the conductor material, the PCB circuit board is retained static and is switched on to connecting wire 107 and wire 101 through conveying dish quick detach unit 8 and conveying dish 9, when conveyer belt 7 moves, thereby metal gyro wheel 102 contacts with wire 101 often and passes through earth connection 104 ground connection with static, the structure of montant 105 can adopt the structure of buffering telescopic link 64, can make metal gyro wheel 102 have the buffer power that rises, be favorable to the contact stability of metal gyro wheel 102 and wire 101.

the method comprises the following steps: the end shaft 5 of the left conveying roller 4 is connected with an external power device through a transmission mechanism, so that the external power device drives the left conveying roller 4, and the conveying belt 7 is driven to run between the two conveying rollers 4;

step two: placing the PCB in the placing groove 91 of the conveying disc 9, fixing the conveying disc 9 on the conveying belt 7 through the conveying disc quick-dismantling unit 8, and changing the position of the conveying disc 9 along with the conveying belt 7 so as to convey the PCB to a specified station;

step three: when PCB circuit boards of other specifications need to be conveyed, the original conveying disc 9 is quickly detached through the conveying disc quick detaching unit 8, and then the conveying disc 9 of the corresponding specification is replaced, so that the quick replacement can be completed;

step four: when non-conductor conveyor belts such as a rubber conveyor belt or a canvas conveyor belt are adopted, the static electricity leading-out unit 10 is used for leading out static electricity which can be carried on a PCB circuit board through the conveying disc 9, the conveying disc quick-dismantling unit 8 and the static electricity leading-out unit 10 in sequence, and the influence on the use of the follow-up PCB circuit board is avoided.

In the second embodiment, referring to fig. 8-9, the present embodiment provides a technical solution: the conveying mechanism for PCB circuit board has the same structure as that of the first embodiment, and features that the conveying belt 7 may be replaced with metal chain conveying belt, the conveying belt 7 includes conveying strips 71, connecting sheets 72 and connecting shaft 73, the conveying strip 71 is of a rectangular structure, a first connecting piece 72 is arranged at two ends of one side of the conveying strip 71, a connecting hole 74 is formed in the side face of the first connecting piece 72, a second connecting piece 75 staggered with the first connecting piece 72 is arranged at two ends of the other side of the conveying strip 71, a connecting shaft 73 matched with the connecting hole 74 is fixed on the side face of the second connecting piece 75, the conveying strip 71 is movably connected end to end through the first connecting piece 72 and the second connecting piece 75 to form a metal chain type conveying belt, the bottom of the conveying strip 71 is provided with feeding grooves 76 in an array mode, and the conveying roller 4 is provided with a lug 41 matched with the feeding grooves 76. The cooperation of the convex block 41 and the feeding groove 76 can ensure the synchronism of the conveying strip 71 and the conveying roller 4, and avoid the sliding to influence the conveying progress.

The first fixing seat 801 and the corresponding conveying strip 71 are more firm in fixing the first fixing seat 801 than other flexible conveying belts, when the conveying belt 7 is made of metal, static electricity can be directly grounded through the conveying disc quick-detaching unit 8, the conveying disc 9, the conveying belt 7 and the support column 2, other grounding devices can be omitted, and the structure is simplified.

In the third embodiment, referring to fig. 7, the present embodiment provides a technical solution: a conveying mechanism of a PCB circuit board is disclosed, the structure of the embodiment is substantially the same as that of the first embodiment, and the difference is that a conveying disc quick-detaching unit 8 can be replaced by the conveying disc quick-detaching unit, which comprises a wedge-shaped fixture block 811, a compression bar 812, a second fixed seat 813, a button 814, a mounting cavity 815 and a third compression spring 816, the second fixed seat 813 is fixed on a conveying belt 7, the second fixed seat 813 is provided with a clamping groove, two sides of the second fixed seat 813 are provided with movable holes which are staggered with each other and communicated with the bottom of the clamping groove, the second fixed seat 813 is also internally provided with a mounting cavity 815 communicated with the clamping groove respectively, the two movable holes are internally provided with the compression bar 812 in a penetrating manner respectively, the outer end of the compression bar 812 is connected with the button 814, the other end of the compression bar 812 extends into the mounting cavity 815 and is, the wedge-shaped fixture block 811 is in matched clamping connection with the wedge-shaped clamping groove.

Pressing button 814 can make three 816 compression of compression spring through depression bar 812 to make wedge fixture block 811 break away from the wedge draw-in groove, thereby change delivery tray 9, this kind of mode joint dynamics is big, changes the back, loosens button 814, and three 816 resilience of compression spring, wedge fixture block 811 blocks into the wedge draw-in groove again and fixes delivery tray 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a conveying mechanism of PCB circuit board which characterized in that: comprises a bottom plate (1), a conveying roller (4), a conveying belt tensioning unit (6), a conveying belt (7), a conveying disc quick-release unit (8) and a conveying disc (9);

the front and back positions of the left side of the top of the bottom plate (1) are respectively provided with two corresponding pillars (2) in the front and back, the front and back positions of the right side of the top of the bottom plate (1) are respectively provided with another two corresponding pillars (2) in the front and back, the top of each pillar (2) is respectively provided with a mounting seat (3), conveying rollers (4) are respectively arranged between the mounting seats (3) corresponding to the front and back of the left side and between the mounting seats (3) corresponding to the front and back of the right side, the end center of each conveying roller (4) is fixedly connected with an end shaft (5), the end shafts (5) are rotatably connected with the mounting seats (3), the two conveying rollers (4) are in transmission connection through a conveying belt (7), conveying disc quick-dismounting units (8) are arranged on the conveying belt (7) at equal intervals, and the conveying disc quick-dismounting units (8) are clamped with mounting blocks (92, a placing groove (91) for placing the PCB is formed in the conveying disc (9);

conveyer belt tensioning unit (6) include extend subassembly, buffering telescopic link (64) and stabilize the slip subassembly, and two pillar (2) bottoms on right side are respectively through stabilizing the slip subassembly and installing with bottom plate (1), the extension subassembly includes tensioning shaft (61), tensioning sleeve (62), bearing (63), installation cover (68), key block (69) and swing arm (610), the middle part at pillar (2) of left side front end is fixed to the one end of tensioning shaft (61), the one end of the other end threaded connection tensioning sleeve (62) of tensioning shaft (61), the one end of connection buffering telescopic link (64) is rotated through bearing (63) to the other end of tensioning sleeve (62), the middle part of pillar (2) of the other end fixed connection right side front end of buffering telescopic link (64), installation cover (68) has been cup jointed through key block (69) in the one end outside that tensioning sleeve (62) are close to tensioning shaft (61), a plurality of rotating rods (610) are arranged on the outer side of the mounting sleeve (68) at equal angles.

2. The conveying mechanism for PCB circuit board as claimed in claim 1, wherein: stabilize sliding assembly and include rectangle spout (65), slider (66) and slide bar (67), rectangle spout (65) are seted up on bottom plate (1) and correspond with pillar (2) bottom of right side front end, just rectangle spout (65) internal fixation has slide bar (67) that are located on the bottom connecting wire of two pillars (2) of front end, slide bar (67) and the slide opening sliding connection on slider (66), and pillar (2) bottom at the right side front end is fixed in slider (66).

3. The conveying mechanism for PCB circuit board as claimed in claim 2, wherein: the buffer telescopic rod (64) comprises a sleeve (641), a sliding groove (642), a sliding block (643), an end cover (644), a first compression spring (645) and a movable rod (646), wherein the closed end of the sleeve (641) is connected with a bearing (63), the open end of the sleeve (641) is provided with the movable rod (646), the inner side of the sleeve (641) is provided with the two symmetrical sliding grooves (642) communicated with the open end, the movable rod (646) is provided with the sliding block (643) in sliding connection with the sliding grooves (642), the inner end of the movable rod (646) is connected with the closed end of the sleeve (641) through the first compression spring (645), the outer side of the open end of the sleeve (641) is in threaded connection with the end cover (644), and the movable rod (646) penetrates through a through hole in the end cover (644).

4. The PCB circuit board conveying mechanism of claim 3, wherein: the conveying device is characterized by further comprising an electrostatic leading-out unit (10), the conveying roller (4) is a hexagonal prism, the conveying belt (7) is one of a rubber conveying belt or a canvas conveying belt, and the electrostatic leading-out unit (10) is mounted on the bottom plate (1) and the conveying belt (7).

5. The PCB circuit board conveying mechanism of claim 4, wherein: unit (10) are drawn forth to static includes wire (101), metal gyro wheel (102), roller seat (103), earth connection (104), montant (105), flange (106) and connecting wire (107), conveyer belt (7) back side edge is equipped with annular wire (101), every delivery disc quick detach unit (8) is connected through connecting wire (107) respectively in wire (101), the position that corresponds wire (101) on bottom plate (1) is fixed with montant (105) through flange (106), the top of montant (105) is connected with roller seat (103), and earth connection (104) is connected in roller seat (103), there are metal gyro wheel (102) at the top of roller seat (103) through shaft swing joint, metal gyro wheel (102) and wire (101) roll connection.

6. The PCB circuit board conveying mechanism of claim 5, wherein: the conveying belt (7) is a metal chain type conveying belt, the conveying belt (7) comprises a conveying strip (71), a first connecting piece (72), a connecting shaft (73), a connecting hole (74), a second connecting piece (75) and a feeding groove (76), the conveying strip (71) is of a rectangular structure, the first connecting piece (72) is arranged at two ends of one side of the conveying strip (71), the connecting hole (74) is formed in the side face of the first connecting piece (72), the second connecting piece (75) staggered with the first connecting piece (72) is arranged at two ends of the other side of the conveying strip (71), the connecting shaft (73) matched with the connecting hole (74) is fixed on the side face of the second connecting piece (75), the head and the tail of the conveying strip (71) are movably connected through the first connecting piece (72) and the second connecting piece (75) to form the metal chain type conveying belt, the feeding groove (76) is, and a convex block (41) matched with the feeding groove (76) is arranged on the conveying roller (4).

7. The PCB circuit board conveying mechanism of claim 6, wherein: conveying dish quick detach unit (8) include fixing base (801), two (802) of compression spring, snap ring (803) and steel ball (806), fixing base (801) are fixed on conveyer belt (7), the draw-in groove has been seted up on fixing base (801), the circular slot has been seted up to both sides in the draw-in groove, two (802) of compression spring are connected to the tip in circular slot medial extremity, snap ring (803) are connected to the outer end of two (802) of compression spring, snap ring (803) are connected with steel ball (806), install in the draw-in groove installation piece (92), and steel ball (806) and the arc wall cooperation joint of installation piece (92) both sides.

8. The PCB conveying mechanism as claimed in claim 7, wherein: conveying dish quick detach unit (8) still include strong magnet (804) and strong magnet two (805), the bottom of installation piece (92) is inlayed and is had strong magnet (804), the draw-in groove bottom is inlayed and is had strong magnet two (805), the opposite magnetism of one end magnetic pole that strong magnet (804) and strong magnet two (805) are close is inhaled together.

9. The PCB conveying mechanism as claimed in claim 8, wherein: the conveying disc quick-release unit (8) comprises a wedge-shaped clamping block (811), a pressing rod (812), a second fixing seat (813), a button (814), a mounting cavity (815) and a third compression spring (816), the second fixing seat (813) is fixed on the conveying belt (7), a clamping groove is formed in the second fixing seat (813), movable holes which are mutually staggered and communicated with the bottom of the clamping groove are formed in two sides of the second fixing seat (813), the mounting cavity (815) communicated with the clamping groove is further formed in the second fixing seat (813) respectively, a pressing rod (812) penetrates through the two movable holes respectively, the outer end of the pressing rod (812) is connected with the button (814), the other end of the pressing rod (812) extends into the mounting cavity (815) and is connected with the wedge-shaped clamping block (811), and the end of the pressing rod (812) is connected with the side surface of the mounting cavity (815) through, the two sides of the mounting block (92) are provided with wedge-shaped clamping grooves, and the wedge-shaped clamping blocks (811) are matched and clamped with the wedge-shaped clamping grooves.

10. A method for conveying a PCB circuit board by a conveying mechanism according to any of claims 1-9, wherein: comprises the following steps:

the method comprises the following steps: an end shaft (5) of the left conveying roller (4) is connected with an external power device through a transmission mechanism, so that the external power device drives the left conveying roller (4) to drive a conveying belt (7) to run between the two conveying rollers (4);

step two: placing the PCB in a placing groove (91) of a conveying disc (9), fixing the conveying disc (9) on a conveying belt (7) through a conveying disc quick-dismantling unit (8), and changing the position of the conveying disc (9) along with the conveying belt (7) so as to convey the PCB to a specified station;

step three: when PCB circuit boards of other specifications need to be conveyed, the original conveying disc (9) is quickly detached through the conveying disc quick-detaching unit (8), and then the conveying disc (9) of the corresponding specification is replaced, so that quick replacement can be completed;

step four: when non-conductor conveyor belts such as a rubber conveyor belt or a canvas conveyor belt are adopted, the static electricity leading-out unit (10) is used, static electricity which can be carried on a PCB circuit board can be led out through the conveying disc (9), the conveying disc quick-release unit (8) and the static electricity leading-out unit (10) in sequence, and the use of a follow-up PCB circuit board is prevented from being influenced.