CN211031628U - Adjustable scraper structure - Google Patents

Abstract

The utility model relates to the technical field of scraper blade structures, and discloses an adjustable scraper blade structure, which comprises a scraper blade part for scraping and printing a circuit on a PCB (printed Circuit Board) and a scraper blade motor, wherein the scraper blade motor is provided with an output shaft for providing power output; the scraper component is provided with moving teeth arranged along the longitudinal direction, and the moving teeth of the scraper component are meshed with the output shaft. When the scraper structure is used, the scraper structure moves in a reciprocating manner, so that the circuit is scraped and printed on the PCB; when the scraper motor is started, the moving teeth of the scraper piece are meshed with the output shaft, so that the output shaft outputs power to enable the scraper piece to move longitudinally in a reciprocating manner relative to the output shaft, and the scraping position and the scraping pressure of the scraper piece are adjusted; realize the printing of different thickness PCB boards, improve the practicality, and improve the printing effect.

Description

Adjustable scraper structure

Technical Field

The patent of the utility model relates to a technical field of scraper blade structure particularly, relates to regulation formula scraper blade structure.

Background

PCB printing, also known as circuit board printing, is a new industry developed today, and the rapid development of screen printing has injected vigor into this industry, bringing about a significant revolution to the electronic industry.

The screen printing machine has a very important position in PCB printing, and the screen printing machine carries out blade coating on tin paste, printing ink and the like on a screen through a scraper plate structure, penetrates through the screen and is printed on a PCB, and a circuit is formed to be conducted.

Among the prior art, the scraper blade structure carries out the knife coating through reciprocating motion, and the pressure of knife coating is invariable, can't realize that the PCB board of different thickness prints, and can't adjust the knife coating position according to different knife coating demands, leads to the practicality low, and the knife coating mode is single.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a regulation formula scraper blade structure aims at solving prior art, and the scraper blade structure does not possess regulatory function's problem.

The utility model is realized in such a way, the adjustable scraper structure comprises a scraper component for scraping and printing the circuit on the PCB and a scraper motor, and the scraper motor is provided with an output shaft for providing power output; the scraper part is provided with moving teeth which are arranged along the longitudinal direction, and the moving teeth of the scraper part are meshed with the output shaft.

Furthermore, the adjustable scraper plate structure comprises two scraper plate members which are arranged correspondingly at intervals, and the output shaft is arranged between the two scraper plate members; the scraper blade spare is including being the scraper blade body of horizontal arrangement and being the moving body of longitudinal arrangement, the scraper blade body will the circuit is scraped and is printed to the PCB board, the lower extreme of moving body with the scraper blade body is the butt joint and arranges, the upper end of moving body forms the removal tooth.

Further, the scraper piece comprises two moving bodies, and two ends of the scraper body are respectively in butt joint with the two moving bodies; the two moving bodies respectively extend upwards to form the moving teeth and are meshed with the output shaft.

Furthermore, the adjustable scraper structure comprises a scraper moving seat, the scraper moving seat is driven by a scraper motor to move in a reciprocating manner, the scraper motor and the scraper moving seat are fixedly arranged, and the output shaft extends along the length direction of the scraper moving seat; along the width direction of the scraper moving seat, the two scraper pieces are arranged on two sides of the scraper moving seat at intervals.

Further, a lower limit piece is fixed on the scraper moving seat, the upper part of the lower limit piece surrounds the moving body, and the lower part of the lower limit piece extends downwards to the lower part of the moving body along the longitudinal direction and is bent to form a lower limit piece; and when the moving body moves downwards to abut against the lower limit piece, the moving body is limited to move downwards continuously.

Further, the adjustable scraper structure comprises a reinforcing member, and the reinforcing member is fixedly arranged; the moving body is formed with the removal rail, the reinforcement is formed with the reinforcement strip, the reinforcement strip butt joint the removal rail.

Further, the two scraper bodies are arranged side by side at intervals.

Further, the scraper blade body comprises a fixed blade and a scraper blade, the scraper blade scrapes and prints the circuit on the PCB, two ends of the fixed blade are in butt joint with the two moving bodies, and the fixed blade and the scraper blade are in up-down butt joint; the fixed plate is provided with a fixed rod, and when the scraper is arranged on the fixed plate, the fixed rod movably penetrates through the scraper.

Further, the scraping blade is provided with a protruding part, and when the scraping blade is installed on the fixing sheet, the fixing sheet is embedded on the protruding part; the scraper is provided with an upward top end face, a gap is formed between the top end face of the scraper and the fixing piece, and the fixing rod penetrates through the gap and movably penetrates through the scraper.

Further, the scraper structure includes knob spare, knob spare with the moving body is fixed arrangement, knob spare has the knob axle, the knob axle wears to establish to the stationary blade, knob spare is through screwing or unscrewing, realizes the stationary blade with the moving body is fixed arrangement or activity and arranges.

Compared with the prior art, the adjustable scraper structure provided by the utility model has the advantages that when the scraper structure is used, the scraper structure moves in a reciprocating manner, so that a circuit is scraped and printed on a PCB; when the scraper motor is started, the moving teeth of the scraper piece are meshed with the output shaft, so that the output shaft outputs power to enable the scraper piece to move longitudinally in a reciprocating manner relative to the output shaft, and the scraping position and the scraping pressure of the scraper piece are adjusted; realize the printing of different thickness PCB boards, improve the practicality, and improve the printing effect.

Drawings

Fig. 1 is a schematic perspective view of a screen printing machine provided by the present invention;

FIG. 2 is a schematic front view of a screen printer according to the present invention;

fig. 3 is a schematic perspective view of a scraper structure provided by the present invention;

FIG. 4 is a schematic front view of a scraper structure provided by the present invention;

FIG. 5 is a schematic left view of a scraper blade structure provided by the present invention;

fig. 6 is a schematic perspective view of an alignment structure provided by the present invention;

fig. 7 is a schematic perspective view of a camera with an alignment structure according to the present invention;

fig. 8 is a schematic perspective view of the lifting structure provided by the present invention;

fig. 9 is a schematic view of the auxiliary rod and the lifting sleeve of the lifting structure provided by the present invention;

fig. 10 is a schematic perspective view of a lifting portion of the lifting structure provided in the present invention;

fig. 11 is a schematic circuit diagram of the screen printing machine according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following describes the implementation of the present invention in detail with reference to specific embodiments.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Referring to fig. 1-11, the preferred embodiment of the present invention is shown.

The utility model provides an adjustable scraper blade structure 100, which comprises a scraper blade part 110 for scraping and printing a circuit on a PCB and a scraper blade motor 120, wherein the scraper blade motor 120 is provided with an output shaft for providing power output; the scraper members 110 have moving teeth 113 arranged in the longitudinal direction, the moving teeth 113 of the scraper members 110 being in meshing arrangement with the output shaft.

When the adjustable scraper structure 100 is used, the scraper structure 100 moves back and forth, so that a circuit is scraped and printed on a PCB; when the scraper motor 120 is started, the moving teeth 113 of the scraper member 110 are meshed with the output shaft, so that the output shaft outputs power, the scraper member 110 is made to reciprocate relative to the output shaft along the longitudinal direction, and the scraping position and the scraping pressure of the scraper member 110 are adjusted; realize the printing of different thickness PCB boards, improve the practicality, and improve the printing effect.

The adjustable scraper structure 100 may be applied to a screen printing machine, and may also be applied to other apparatuses, and in this application, embodiments applied to a screen printing machine are provided, and the application field of the adjustable scraper structure 100 is not limited.

The high-efficiency full-automatic screen printing machine comprises a machine base 400, a feeding structure 300, a scraper structure 100 and an alignment structure 200, wherein the feeding structure 300, the scraper structure 100 and the alignment structure 200 are movably arranged on the machine base 400 respectively, a circuit is scraped to a PCB by the scraper structure 100, and the alignment structure 200 is used for identifying the placement position of the PCB; the loading structure 300 includes a suction plate 310310 driven by a driving structure to reciprocate, the suction plate 310310 forms a plurality of suction holes with suction force, and the PCB is placed on the suction plate 310310.

When the efficient full-automatic screen printing machine is used, a PCB is placed on the suction plate 310310, the placement stability of the PCB is enhanced under the action of the suction holes, then the alignment structure 200 identifies the placement position of the PCB, after confirmation, the suction plate 310310 is driven to be transferred to the position below the scraper structure 100, and the scraper structure 100 scrapes lines on the PCB to realize screen printing of the PCB; under the action of the alignment structure 200, the placement precision of the PCB is improved, and the printing quality of the PCB is improved; move through drive suction disc 310310, realize automatic material loading, shorten the material loading time, and improve work efficiency.

The high-efficiency full-automatic screen printing machine comprises a control element, wherein a program is preset in the control element, so that the feeding structure 300, the scraper structure 100 and the alignment structure 200 are controlled; the procedure is not a utility model protection object and, therefore, will not be described in detail.

When the scraper structure 100 is used, the solder paste is printed on the PCB board through the through holes, and the solder paste is printed on the PCB board to form a circuit; and circuit conduction of the PCB is realized.

The blade structure 100 may also be used to draw other materials through a screen, such as ink, and the like, and the application is not limited to the material drawn by the blade structure 100.

In this embodiment, the squeegee structure 100 includes a squeegee member 110 that squeegees a line to a PCB board and a squeegee motor 120, the squeegee motor 120 having an output shaft that provides power output; the scraper member 110 has moving teeth 113 arranged along the longitudinal direction, and the moving teeth 113 of the scraper member 110 are arranged in meshing engagement with the output shaft; thus, the scraper plate member 110 is driven by the scraper motor 120 to move back and forth along the longitudinal direction, so that the pressure of the scraper structure 100 can be adjusted; the printing of PCB boards with different thicknesses is realized, and the practicability of the screen printing machine is improved.

The scraper structure 100 comprises two scraper members 110, the two scraper members 110 are arranged correspondingly at intervals, and the output shaft is positioned between the two scraper members 110; the scraper component 110 comprises a scraper body 112 arranged transversely and a moving body 111 arranged longitudinally, the scraper body 112 scrapes lines to the PCB, the lower end of the moving body 111 is in butt joint with the scraper body 112, and the upper end of the moving body 111 forms a moving tooth 113; through scraping plate body 112, realize the tin cream knife coating, the tin cream of being convenient for sees through screen printing to PCB board, and two scrape synchronous knife coatings of plate part 110, realizes multi-level knife coating, improves the printing effect.

Furthermore, the scraper member 110 includes two moving bodies 111, and two ends of the scraper member 112 are respectively in butt joint with the two moving bodies 111; the two moving bodies 111 respectively extend upwards to form moving teeth 113 and are arranged in a meshed mode with the output shaft; when the squeegee body 112 is squeegeed by the two moving bodies 111, the movement stability is more excellent.

The adjustable scraper structure 100 comprises a scraper moving seat 130, the scraper moving seat 130 is driven by a scraper motor to reciprocate, the scraper motor 120 and the scraper moving seat 130 are fixedly arranged, and an output shaft extends along the length direction of the scraper moving seat 130; two squeegee members 110 are arranged at intervals on both sides of the squeegee moving base 130 in the width direction of the squeegee moving base 130; the scraping motor drives the scraping plate moving seat 130 to move back and forth, so that the scraping plate structure 100 can move back and forth, and a circuit can be scraped and printed on a PCB.

In addition, the squeegee members 110 are spaced apart on both sides of the squeegee moving base 130, so that the squeegee structure 100 can be moved more smoothly.

Furthermore, the scraper moving seat 130 is fixed with a lower limit piece, the upper part of the lower limit piece surrounds the moving body 111, and the lower part of the lower limit piece extends downwards along the longitudinal direction to the lower part of the moving body 111 and is bent to form a lower limit piece; when the moving body 111 moves down to collide with the lower limit piece, the moving body 111 is restricted from moving down continuously.

Under the action of the upper part of the lower limit piece, the shaking of the moving body 111 during moving is effectively reduced, and the moving stability is improved; under the action of the lower part of the lower limiting piece, when the moving body 111 moves downwards to abut against the lower limiting piece, the moving body 111 is limited to move downwards continuously, and the damage to the scraper structure 100 caused by excessive downward movement of the moving body 111 is avoided.

The adjustable screed structure 100 includes a reinforcing member 140, the reinforcing member 140 being fixedly disposed; the moving body 111 is formed with a moving rail, the reinforcing member 140 is formed with a reinforcing strip, and the reinforcing strip is butted with the moving rail; through the cooperation of reinforcing strip and removal rail, make the removal of moving body 111 more steady.

The reinforcing member 140 is located above the blade moving base 130, so that when the moving body 111 moves upward, the suspended area of the moving body 111 is reduced, and the moving body 111 moves more smoothly.

The reinforcing member 140 is fixedly arranged with the base 400, so that the installation of the reinforcing member 140 is realized.

The two scraper bodies 112 are arranged side by side at intervals; through two scraper bodies 112, realize multi-level blade coating, improve the printing effect.

The squeegee body 112 comprises a fixing plate 115 and a squeegee blade 114, the squeegee blade 114 is used for squeegee-printing the circuit on the PCB, two ends of the fixing plate 115 are in butt joint with the two moving bodies 111, and the fixing plate 115 and the squeegee blade 114 are in up-down butt joint; the fixing plate 115 is provided with a fixing rod, and when the scraping blade 114 is arranged on the fixing plate 115, the fixing rod movably penetrates through the scraping blade 114; through the dead lever, realize the change of doctor-bar 114 to realize different blade coating demands, improve the practicality.

The wiper blade 114 has a projection on which the fixing piece 115 is fitted when the wiper blade 114 is attached to the fixing piece 115; the scraping blade 114 has an upward top end face, a gap is formed between the top end face of the scraping blade 114 and the fixing sheet 115, and the fixing rod penetrates through the gap and is movably arranged in the scraping blade 114; thus, when the blade 114 performs blade coating, the transmission range of the force is reduced, and the entire wobbling property is reduced.

The scraper structure 100 comprises a knob piece, the knob piece and the moving body 111 are fixedly arranged, the knob piece is provided with a knob shaft, the knob shaft penetrates through the fixing piece 115, and the fixing piece 115 and the moving body 111 are fixedly arranged or movably arranged by screwing or unscrewing the knob piece; thereby realizing the angle adjustment of the scraping blade 114 relative to the fixing sheet 115 and meeting different scraping requirements; and under the action of the clearance, the angle adjustment of the scraping blade 114 relative to the fixing sheet 115 is facilitated.

The knob shaft has knob teeth, and the fixing plate 115 has inclined teeth arranged obliquely, and the inclined teeth are arranged in mesh with the knob teeth, so that the fixing plate 115 is driven to deviate when the knob shaft rotates, and the angle adjustment of the scraping blade 114 is realized.

Alternatively, the angle adjustment of the wiper blade 114 can be achieved directly by manually adjusting the angle of the fixing plate 115.

The two moving bodies 111 are distributed on both sides of the squeegee moving base 130 along the width direction of the squeegee moving base 130; the lower part of the moving body 111 is bent toward the blade moving seat 130 to form a fixed part, and the end part of the blade body 112 is fixed on the fixed part; the center of the whole body is deviated to the middle part, and the moving stability of the scraper structure 100 is improved.

The alignment structure 200 can be used for a screen printing machine to monitor the position of the PCB.

In this embodiment, the apparatus includes an alignment support 220, an alignment moving base 230, a camera 240 and a controller 210, wherein the alignment support 220 and the alignment moving base 230 are movably disposed, and the alignment moving base 230 and the camera 240 are movably disposed; counterpoint support 220 forms the counterpoint region, and the PCB board is arranged in the counterpoint region, and the PCB board has the inspection hole, and camera 240's the face of making a video recording is towards the counterpoint region, and camera 240 draws the positional information transmission in inspection hole to controller 210.

The alignment moving seat 230 moves relative to the alignment support 220 to realize that the camera 240 moves along the X direction, and the camera 240 moves relative to the alignment moving seat 230 to realize that the camera 240 moves along the Y direction; therefore, the camera 240 extracts information of different positions; each PCB board is in proper order from the process of transferring of camera 240, and camera 240 draws according to the detection hole position to the PCB board, realizes the control to PCB board position, PCB board positional information transmission to controller 210 that camera 240 will draw realizes placing the position to the PCB board and detects, improves the precision of placing of PCB board, improves the printing quality of PCB board.

The PCB board is formed with the inspection hole, and when camera 240 removed, the information of gathering the inspection hole realized placing the position to the PCB board and detecting, improved the precision of placing of PCB board, improved the printing quality of PCB board.

The alignment moving seat 230 comprises an alignment guide rail, an alignment block 231 and a fixing member 233, wherein the alignment block 231 is movably connected with the alignment guide rail, and the camera 240 is movably connected with the alignment block 231; the alignment block 231 is provided with alignment grooves 232 which are longitudinally arranged, and the fixing piece 233 penetrates through the alignment grooves 232 and movably penetrates through the camera 240; the alignment block 231 is moved by the alignment guide rail; the installation stability of the camera 240 is enhanced by the fixing member 233.

The alignment moving seat 230 is provided with a rotating rod 234, and the rotating rod 234 penetrates through the alignment block 231 and extends to be fixedly arranged with the camera 240 along the top-down direction; when the rotating rod 234 rotates, the camera 240 is driven to reciprocate up and down; in this way, the rotating rod 234 rotates to realize the distance of the camera 240 relative to the alignment area, thereby meeting different detection requirements.

The alignment block 231 is provided with a laser piece 260, the alignment area is provided with an alignment part, the alignment part and the detection hole are arranged correspondingly, and the laser piece 260 transmits laser rays to the center of the alignment part; like this, through radium-shine piece 260 transmission ray, supplementary camera 240 seeks the target, improves camera 240's the accuracy of extracting.

The alignment area is provided with an alignment surface, and the PCB is placed on the alignment surface; the alignment surface is provided with alignment points, and the detection holes of the PCB are correspondingly arranged with the alignment points; the camera 240 detects the alignment point, and the position of the PCB is monitored.

The controller 210 is provided with a control screen, the controller 210 controls the alignment moving seat 230 to reciprocate relative to the alignment support seat 220, and the controller 210 controls the camera 240 to reciprocate relative to the alignment moving seat 230; the control operation is realized through the control screen; thus, according to the preset program, the controller 210 precisely controls the camera 240 to detect the position of the PCB; the built-in program of the controller 210 does not belong to a protection object and is not described in detail.

The alignment device comprises two alignment moving seats 230, an alignment slide rail is formed on an alignment support 220, the two alignment moving seats 230 are respectively and movably connected with the alignment slide rail, a blocking piece is formed in the middle of the alignment slide rail, and the blocking piece is positioned between the two alignment moving seats 230; the two aligning movable seats 230 are respectively and correspondingly provided with a camera 240; double-row operation is realized, and the detection efficiency is improved.

One of the aligning movable seats 230 has an outer end surface departing from the other aligning movable seat 230, an inner end of the aligning block 231 is movably arranged in a butt joint with the aligning guide rail, an outer end of the aligning block 231 is arranged to extend away from the outer end surface of the aligning movable seat 230, and the camera 240 is movably connected with the outer end of the aligning block 231; the alignment area is provided with an alignment wall, and the PCB is attached to the alignment wall; when detection is carried out, the camera 240 and the contraposition wall are arranged in an up-and-down corresponding mode; therefore, the positioning wall has a reference limiting effect, and the PCB is convenient to place.

The alignment structure 200 for the screen printing machine comprises a lamp body 250, wherein the lamp body 250 is annularly arranged, and the lamp body 250 surrounds the camera 240; the lamp body 250 emits light toward the alignment area; in this way, the light is supplemented to the camera 240 through the lamp body 250, and the shooting effect of the camera 240 is improved.

Furthermore, the lamp body 250 has a light emitting surface, and the image pickup surface of the camera 240 is flush with the light emitting surface; the influence of the lamp body 250 on the camera 240 is greatly reduced, and meanwhile, the influence of the camera 240 on the light supplement of the lamp body 250 is reduced; the image pickup effect is improved.

The image pickup surface of the camera 240 is arranged in parallel with the alignment area, and the image pickup surface is arranged in a circle; therefore, when the camera 240 shoots, the camera 240 is arranged opposite to the alignment area, and shooting accuracy of the camera 240 is guaranteed; and the camera is circularly arranged, so that the camera 240 is conveniently matched with the detection hole.

The controller 210 can convert the optical image into an electrical signal to detect the position of the PCB.

Embodiment of alignment structure 200: in the CCD system, the detection holes have CCD coordinates, and the controller 210 is preset with corresponding CCD coordinate information; the camera 240 extracts an image, coincides with the CCD coordinate, and then converts the image into an electrical signal, thereby determining whether the PCB position is correct.

If the PCB is deviated, the CCD coordinate center of the detection hole is deviated from the extraction center of the camera 240, so that the controller 210 confirms that the position of the PCB is deviated.

In this embodiment, the suction plate 310310 includes an upper plate and a lower plate, and the upper plate and the lower plate respectively form suction holes; the base 400 forms an upper slide rail and a lower slide rail, which are arranged at intervals from top to bottom; the upper plate body is movably connected with an upper sliding rail, and the lower plate body is movably connected with a lower sliding rail; the upper plate body and the lower plate body move in a staggered manner to realize position conversion; like this, the switching of the upper plate body and the lower plate body realizes that material loading and printing go on in step, shortens processing duration, improves work efficiency.

Furthermore, a plurality of adsorption areas are formed on the upper plate body, and the adsorption areas form adsorption holes; the upper plate body is provided with an upward top end face, an upper guide block and an upper limiting block are formed on the top end face of the upper plate body, and an adsorption area is formed between the upper guide block and the upper limiting block; when the PCB is arranged in the adsorption area, two ends of the PCB respectively abut against the upper guide block and the upper limiting block; under the action of the upper guide block and the upper limiting block, the suction plate 310310 is prevented from moving to cause the deviation of the PCB, and the subsequent printing quality is ensured.

The lower plate body is provided with an upward top end face, a lower guide block and a lower limiting block are formed on the top end face of the lower plate body, and an adsorption area is formed between the lower guide block and the lower limiting block; when the PCB is arranged in the adsorption area, two ends of the PCB respectively contact the lower guide block and the lower limiting block; under the effect of guide block and lower stopper down, avoid the suction disc 310310 to remove, cause the skew of PCB board, guarantee subsequent printing quality.

The efficient full-automatic screen printing machine comprises a blanking structure, wherein the blanking structure comprises a blanking guide rail and a plurality of conveying groups, a suction plate 310310 is movably connected with the blanking guide rail and the conveying groups respectively from top to bottom, and each conveying group and each adsorption area are arranged in a one-to-one correspondence manner; therefore, the printed PCB is transferred through the blanking structure, the PCB is collected, and subsequent packaging is facilitated.

Carry the group including a plurality of delivery wheels, along the X direction, each delivery wheel is and arranges in proper order, and each delivery wheel of bottom end face laminating of board body down strengthens the mobility stability of board body down.

In this embodiment, the base 400 is provided with a lifting structure 500, and the scraper structure 100 fixes the lifting structure 500; the lifting structure 500 drives the scraper structure 100 to reciprocate up and down relative to the base 400 from top to bottom; like this, scraper structure 100 realizes scraper structure 100 different positions and carries out the knife coating to last plate body and lower plate body under elevation structure 500's effect, guarantees to carry out the knife coating to last plate body and lower plate body.

The lifting structure 500 comprises a lifting motor 510, at least two lifting groups and a rotating wheel 520, wherein the lifting groups are arranged along the longitudinal lifting direction, the lower parts of the lifting groups are embedded in the machine base 400, and the upper parts of the lifting groups and the scraper structure 100 are fixedly arranged; the lifting motor 510 is formed with a plurality of lifting shafts 511 for power take-off, the lifting shafts 511 are connected with the rotating wheel 520 and drive the rotating wheel 520 to rotate, and the rotating wheel 520 is provided with a transmission part which is connected with the lifting group.

When the scraper structure 100 ascends, the lifting motor 510 drives the rotating wheel 520 to rotate through the lifting shaft 511, when the scraper structure ascends, the rotating wheel 520 rotates to pull the transmission part, the transmission part drives the lifting group to ascend, when the scraper structure 100 descends, the lifting motor 510 rotates reversely, the rotating wheel 520 rotates, the transmission part cancels tension, the lifting group descends under the action of self weight, and the scraper structure 100 loses the ascending driving force and gradually descends; in this way, the lifting motor 510 synchronously drives the two lifting sets, so that the two lifting sets synchronously ascend or descend, and the ascending or descending stability of the scraper structure 100 is improved.

The lift group is including being two lift portions 530 that correspond to arrange, and swiveling wheel 520 has two rotatory grooves, and the driving medium includes a plurality of chains 540, and chains 540 is the one-to-one with rotatory groove and arranges, and the inner winding swiveling wheel 520 of chains 540, the outer end of chains 540 extend to swiveling wheel 520 external connection lift portion 530.

Thus, when the rotating wheel 520 rotates under the action of the rotating groove, the chains 540 do not affect each other when moving, and the two lifting parts 530 are ensured to synchronously lift or descend without affecting each other, so that the lifting or descending stability of the scraper structure 100 is ensured.

The lifting part 530 comprises a lifting rod 531 and a lifting block 533, the lifting rod 531 and the lifting block 533 are fixedly arranged in an up-down butt joint manner, and the outer end of the chain 540 is fixedly arranged with the lifting block 533; thus, the chain 540 moves up or down by the lifting block 533, and the lifting lever 531 is driven to move up or down, thereby raising or lowering the squeegee structure 100.

The lifting part 530 comprises an auxiliary rod 532, and the auxiliary rod 532 and the lifting rod 531 are arranged in parallel at intervals; the lifting block 533 has a lifting sleeve 536 extending upward, the upper end of the auxiliary rod 532 is fixedly disposed, and the lower end of the auxiliary rod 532 is embedded in the lifting sleeve 536; the lift jacket 536 is formed with a rotation prevention groove, and the lower end of the auxiliary lever 532 is formed with a rotation prevention protrusion 537, which is fitted into the rotation prevention groove.

When the lifting block 533 ascends or descends, under the matching action of the auxiliary rod 532 and the lifting rod 531, the lifting block 533 ascends more stably and descends more stably; meanwhile, the auxiliary lever 532, the lifting lever 531 and the lifting block 533 are integrated to reduce the swing of the lifting lever 531 in ascending or descending, thereby improving the stability of the scraper structure 100 in ascending or descending.

The lifting part 530 comprises a lifting top block 534, the lifting top block 534 is positioned above the rotating wheel 520, the outer end of the chain 540 extends upwards to penetrate through the lifting top block 534 to form a butt joint section, and the butt joint section extends downwards to be connected with the lifting block 533; under the action of the lifting top block 534, the extension range of the chain 540 is enlarged, so that the transmission of the driving force is more stable.

The lifting top block 534 comprises a top block gear, the chain 540 is meshed with the top block gear, and when the chain 540 moves, the top block gear is driven to idle, so that the moving stability of the chain 540 is enhanced.

The lifting part 530 comprises a buffer 535, the buffer 535 is arranged in parallel with the rotating wheel 520, the outer end of the chain 540 penetrates through the buffer 535 along the horizontal direction to form a buffer section, and the buffer section extends upwards to penetrate through the lifting top block 534; under the action of the buffer 535, the chain 540 moves more stably and smoothly; the chain 540 is guided and steered, the pressure on the moving chain 540 is reduced, and the service life of the chain 540 is prolonged.

The buffering member 535 comprises a buffering gear, the chain 540 is meshed with the buffering gear, and when the chain 540 moves, the chain drives the buffering gear to idle, so that the moving stability of the chain 540 is enhanced.

The transmission member comprises two chains 540, the inner ends of the two chains 540 are respectively wound around the rotating wheel 520, the outer ends of the two chains 540 extend outwards in opposite directions and are respectively and correspondingly connected with the two lifting parts 530; the two lifting parts 530 are synchronously lifted or lowered.

The rotating wheel 520 includes two wheels, and the lifting motor 510 outputs power through the lifting shaft 511 to drive the two wheels to rotate in opposite directions, so that the two lifting portions 530 are lifted or lowered synchronously.

A reversing gear is arranged in one wheel body, the lifting shaft 511 is meshed with the reversing gear, the lifting shaft 511 drives the reversing gear to rotate, and one wheel body rotates along the opposite direction relative to the reversing gear, so that the two wheel bodies rotate in the opposite directions; the two lifting parts 530 are synchronously lifted or lowered.

The lifting motor 510 is formed with two lifting shafts 511, and the two lifting shafts 511 are symmetrically arranged; the two lifting shafts 511 are respectively connected with the rotating wheels 520 in a butt joint mode, and the two rotating wheels 520 are symmetrically arranged; the two groups of lifting groups are symmetrically arranged; therefore, the two groups of lifting groups can synchronously ascend or descend, and the ascending or descending smoothness of the scraper structure 100 is ensured.

The lifting structure 500 with better stability comprises four lifting parts 530, wherein the four lifting parts 530 are correspondingly arranged along four corners; the four lifting parts 530 are synchronously lifted or lowered, and the lifting or lowering smoothness of the scraper structure 100 is ensured.

The lifting structure 500 with better stability comprises a speed reducer, and a lifting motor 510 is meshed with the speed reducer; one end of the lifting shaft 511 is engaged with the speed reducer, and the other end of the lifting shaft 511 is connected with the rotating wheel 520; under the action of the speed reducer, the speed reducer has the functions of matching rotating speed and transmitting torque, and the stability of the output driving force of the lifting motor 510 is improved, so that the ascending or descending stability of the scraper structure 100 is improved.

The reducer is combined with the lifting motor 510 to realize synchronous speed reduction transmission of the four lifting parts 530, so that the lifting stability or descending stability of the scraper structure 100 is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The adjustable scraper plate structure is characterized by comprising a scraper plate part for scraping and printing a circuit on a PCB (printed Circuit Board) and a scraper plate motor, wherein the scraper plate motor is provided with an output shaft for providing power output; the scraper part is provided with moving teeth which are arranged along the longitudinal direction, and the moving teeth of the scraper part are meshed with the output shaft.

2. The adjustable screed structure of claim 1, wherein the adjustable screed structure comprises two of the screed members in spaced correspondence, the output shaft being between the two screed members; the scraper blade spare is including being the scraper blade body of horizontal arrangement and being the moving body of longitudinal arrangement, the scraper blade body will the circuit is scraped and is printed to the PCB board, the lower extreme of moving body with the scraper blade body is the butt joint and arranges, the upper end of moving body forms the removal tooth.

3. The adjustable screed structure of claim 2, wherein the screed member comprises two of the moving bodies, and wherein the two ends of the screed body are respectively in abutting engagement with the two moving bodies; the two moving bodies respectively extend upwards to form the moving teeth and are meshed with the output shaft.

4. The adjustable screed structure of claim 3, wherein the adjustable screed structure comprises a screed moving base, the screed moving base is driven to reciprocate by a screed motor, the screed motor is fixedly arranged with the screed moving base, and the output shaft extends along a length of the screed moving base; along the width direction of the scraper moving seat, the two scraper pieces are arranged on two sides of the scraper moving seat at intervals.

5. The adjustable screed structure of claim 4, wherein the screed moving seat is fixed with a lower limit member, an upper portion of the lower limit member surrounds the moving body, a lower portion of the lower limit member extends downwards along a longitudinal direction to a position below the moving body and is bent to form a lower limit piece; and when the moving body moves downwards to abut against the lower limit piece, the moving body is limited to move downwards continuously.

6. An adjustable screed structure as claimed in any one of claims 2 to 5 wherein the adjustable screed structure includes a reinforcing member in a fixed arrangement; the moving body is formed with the removal rail, the reinforcement is formed with the reinforcement strip, the reinforcement strip butt joint the removal rail.

7. An adjustable screed structure as claimed in any one of claims 3 to 5 wherein two of the screed bodies are spaced side by side.

8. The adjustable scraper structure as claimed in any one of claims 2-5, wherein said scraper body comprises a fixing plate and a scraper, said scraper is used for scraping said circuit onto a PCB, two ends of said fixing plate are in butt joint arrangement with two said moving bodies, said fixing plate and said scraper are in up-down butt joint arrangement; the fixed plate is provided with a fixed rod, and when the scraper is arranged on the fixed plate, the fixed rod movably penetrates through the scraper.

9. The adjustable screed structure of claim 8, wherein the wiper blade has a raised portion that engages a retaining tab when the retaining tab is attached to the wiper blade; the scraper is provided with an upward top end face, a gap is formed between the top end face of the scraper and the fixing piece, and the fixing rod penetrates through the gap and movably penetrates through the scraper.

10. The adjustable scraper structure of claim 8 wherein said scraper structure comprises a knob member, said knob member being fixedly disposed with said moving body, said knob member having a knob shaft, said knob shaft being inserted into said fixing plate, said knob member being screwed or unscrewed to fixedly or movably dispose said fixing plate with said moving body.

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