CN111873611A - Vacuum plug hole printing device - Google Patents

Vacuum plug hole printing device Download PDF

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Publication number
CN111873611A
CN111873611A CN202010768318.XA CN202010768318A CN111873611A CN 111873611 A CN111873611 A CN 111873611A CN 202010768318 A CN202010768318 A CN 202010768318A CN 111873611 A CN111873611 A CN 111873611A
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CN
China
Prior art keywords
axis
air guide
bearing plate
guide plate
cylinder
Prior art date
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Granted
Application number
CN202010768318.XA
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Chinese (zh)
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CN111873611B (en
Inventor
华承金
夏国祥
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Guangdong Jiejun Electronic Technology Co ltd
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Guangdong Jiejun Electronic Technology Co ltd
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Priority to CN202010768318.XA priority Critical patent/CN111873611B/en
Publication of CN111873611A publication Critical patent/CN111873611A/en
Application granted granted Critical
Publication of CN111873611B publication Critical patent/CN111873611B/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0881—Machines for printing on polyhedral articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/20—Supports for workpieces with suction-operated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/16—Printing tables
    • B41F15/18—Supports for workpieces
    • B41F15/26—Supports for workpieces for articles with flat surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2200/00—Printing processes
    • B41P2200/40—Screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/10—Screen printing machines characterised by their constructional features
    • B41P2215/11—Registering devices
    • B41P2215/114—Registering devices with means for displacing the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/50—Screen printing machines for particular purposes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)

Abstract

The invention relates to a vacuum hole plugging printing device. The invention discloses a vacuum plug hole printing device, which comprises a bin body, a printing platen arranged in the bin body and a platen displacement transmission mechanism arranged in the bin body, wherein the bin body is provided with a large vacuum chamber and a small vacuum chamber, the platen displacement transmission mechanism is used for driving the printing platen to reciprocate between the large vacuum chamber and the small vacuum chamber, and the printing platen comprises: a chassis; the bearing plate is arranged on the underframe, and the top surface of the bearing plate is provided with a first air guide plate and a second air guide plate; the first fine adjustment assembly is arranged between the bottom frame and the bearing plate and used for adjusting the position of the bearing plate; and the second fine adjustment assembly is arranged between the bearing plate and the second air guide plate and is used for adjusting the position of the second air guide plate. The vacuum plug hole printing device has the advantages of printing a plurality of PCB boards at one time and higher working efficiency.

Description

Vacuum plug hole printing device
Technical Field
The invention relates to the field of vacuum screen printing devices, in particular to a vacuum hole plugging printing device.
Background
The surface of the PCB is porous, and it is necessary to fill resin into the pores on the surface thereof in order to smooth the surface, and a vacuum hole filling printer is commonly used in the art to fill the pores. In order to make the filling uniform, the printer prints in a vacuum state, and fills the resin to the depth of the hole by a pressure difference generated by reducing the degree of vacuum. For example, it is cumbersome to install a printer in a container having a sealed structure, open a door of the container, carry a table on which a printed wiring board is mounted into the container, perform printing while evacuating the container by a vacuum pump in a state where the door is closed, and open the door after printing to take out the printed circuit board and perform the next printing.
In the use process of the existing vacuum printing machine, the contact ratio of the position of a PCB and a printing screen plate can be adjusted by a printing bedplate of the vacuum printing machine, so that only one PCB can be printed at each time, and the working efficiency is lower.
Disclosure of Invention
Accordingly, an object of the present invention is to provide a vacuum hole plugging printing apparatus, which has advantages of printing a plurality of PCB boards at a time and having high working efficiency.
A vacuum tap hole printing device comprising a cartridge body, a printing platen disposed within the cartridge body, and a platen displacement transmission mechanism disposed within the cartridge body, the cartridge body having a large vacuum chamber and a small vacuum chamber, the platen displacement transmission mechanism for driving the printing platen to reciprocate between the large vacuum chamber and the small vacuum chamber, the printing platen comprising: a chassis; the bearing plate is arranged on the underframe, and the top surface of the bearing plate is provided with a first air guide plate and a second air guide plate; the first fine adjustment assembly is arranged between the bottom frame and the bearing plate and used for adjusting the position of the bearing plate; and the second fine adjustment assembly is arranged between the bearing plate and the second air guide plate and is used for adjusting the position of the second air guide plate.
Compared with the prior art, the vacuum plug hole printing device has the advantages that the plurality of air guide plates are arranged on the bearing plate, so that the printing platen can be used for placing a plurality of PCB boards at one time. Then, the position of the bearing plate is adjusted by utilizing the first fine adjustment component according to the position of the PCB on the first air guide plate, so that the position of the first air guide plate is indirectly adjusted. After the first fine-tuning component is adjusted, the second fine-tuning component is used for adjusting the position of the second air guide plate, so that the position of the plurality of PCBs can be adjusted, the vacuum hole plugging printing device can print the plurality of PCBs at one time, and the working efficiency is greatly improved.
Further, the first air guide plate is fixed on the bearing plate.
Furthermore, the printing platen includes two second fine adjustment assemblies, one second fine adjustment assembly is disposed between the bearing plate and the second air guide plate, the other second fine adjustment assembly is disposed between the bearing plate and the first air guide plate, the second fine adjustment assembly disposed between the bearing plate and the second air guide plate is used for adjusting the position of the second air guide plate, and the second fine adjustment assembly disposed between the bearing plate and the first air guide plate is used for adjusting the position of the first air guide plate.
Further, all the air guide plates are arranged on the bearing plate in a rectangular array.
Further, the first fine adjustment assembly is used for adjusting the position of the bearing plate on a horizontal plane; the first trim component includes: the first X driving module is arranged on the underframe and is used for driving the bearing plate to move in the X-axis direction on the horizontal plane; and the first Y-axis driving module is arranged on the bottom frame and is used for driving the bearing plate to move in the Y-axis direction on the horizontal plane or horizontally rotate.
Further, the first X driving module comprises an X-axis motor, and the X-axis motor is used for driving the bearing plate to move in the X-axis direction on the horizontal plane; the first Y-axis driving module comprises a first Y-axis motor and a second Y-axis motor, and the first Y-axis motor and the second Y-axis motor are used for driving the bearing plate to move or horizontally rotate in the Y-axis direction on the horizontal plane.
Furthermore, the first X-axis driving module further comprises an X-axis cylinder, the X-axis cylinder is connected with the bearing plate, and the acting force of the X-axis cylinder on the bearing plate is opposite to the acting force of the X-axis motor on the bearing plate; the first Y-axis driving module comprises a first Y-axis cylinder and a second Y-axis cylinder, the first Y-axis cylinder and the second Y-axis cylinder are connected with the bearing plate, the acting force of the first Y-axis cylinder on the bearing plate is opposite to that of the first Y-axis motor on the bearing plate, and the acting force of the second Y-axis cylinder on the bearing plate is opposite to that of the second Y-axis motor on the bearing plate.
Furthermore, the X-axis motor, the first Y-axis motor, and the second Y-axis motor are all located on the same side of the bearing plate, and the X-axis motor is located between the first Y-axis motor and the second Y-axis motor; the first Y-axis motor and the second Y-axis motor are symmetrical about the center line of the bearing plate; an output shaft of the X-axis motor is connected with an X-axis lead screw, the X-axis lead screw is in threaded connection with the underframe, a sliding groove is arranged at the bottom of the bearing plate, a first end of the sliding groove is a closed end, the guiding direction of the sliding groove is parallel to the moving direction of the bearing plate in the X-axis direction of the horizontal plane, a pushing piece is connected in the sliding groove in a sliding manner, a transmission piece is connected on the underframe in a rotating manner, one end of the transmission piece is hinged with the pushing piece, the other end of the transmission piece is arranged on the moving track of the X-axis lead screw, and when the X-axis lead screw is pressed against the transmission piece, the transmission piece rotates to drive; the transmission piece is L-shaped; an output shaft of the first Y-axis motor is connected with a first Y-axis screw rod, the first Y-axis screw rod is in threaded connection with the underframe, a first Y-axis ejector block is arranged at the bottom of the bearing plate, and the first Y-axis ejector block is arranged on a moving track of the first Y-axis screw rod; the output shaft of the second Y-axis motor is connected with a second Y-axis screw rod, the second Y-axis screw rod is in threaded connection with the underframe, a second Y-axis ejector block is arranged at the bottom of the bearing plate, and the second Y-axis ejector block is arranged on the moving track of the second Y-axis screw rod; the X-axis cylinder is mounted on the underframe, and a telescopic rod of the X-axis cylinder is connected with the bearing plate; the first Y-axis cylinder is mounted on the bottom frame, and a telescopic rod of the first Y-axis cylinder is connected with the bearing plate; the second Y-axis cylinder is mounted on the bottom frame, and a telescopic rod of the second Y-axis cylinder is connected with the bearing plate; the acting force of the X-axis cylinder on the bearing plate and the acting force of the pushing piece on the closed end of the sliding chute are positioned on the same straight line; the acting force of the first Y-axis cylinder on the bearing plate and the acting force of the first Y-axis motor on the bearing plate are positioned on the same straight line; the acting force of the second Y-axis cylinder on the bearing plate and the acting force of the second Y-axis motor on the bearing plate are located on the same straight line.
Further, the second fine adjustment assembly is used for adjusting the position of the second air guide plate on the horizontal plane; the second trim component comprises: the second X-axis driving module is arranged on the bearing plate and used for driving the second air guide plate to move in the X-axis direction on the horizontal plane; and the second Y-axis driving module is arranged on the bearing plate and is used for driving the second air guide plate to move in the Y-axis direction on the horizontal plane or horizontally rotate.
Further, the second X-axis driving module includes: the X-axis forward pushing piece is arranged on the bearing plate and abuts against the first side face of the air guide plate to push the air guide plate to move in the X-axis direction on the horizontal plane in a forward direction; and the X-axis reverse pushing piece is arranged on the bearing plate and props against the second side surface of the air guide plate so as to push the air guide plate to reversely move in the X-axis direction on the horizontal plane, and the second side surface is opposite to the first side surface.
Further, the X-axis forward pushing piece can be any one of a differential head and a servo motor with a screw rod; the X-axis reverse pushing piece can be any one of a spring, a cylinder and a buffer; the X-axis reverse pushing piece and the X-axis forward pushing piece are arranged oppositely.
Further, the second Y-axis driving module includes: the first Y-axis forward pushing piece is arranged on the bearing plate and abuts against the third side face of the air guide plate so as to push the air guide plate to move in the Y-axis direction on the horizontal plane in a forward direction; the second Y-axis forward pushing piece is arranged on the bearing plate and abuts against the third side face of the air guide plate to push the air guide plate to move in the Y-axis direction on the horizontal plane in a forward direction; the first Y-axis reverse pushing piece is arranged on the bearing plate and abuts against a fourth side face of the air guide plate to push the air guide plate to reversely move in the Y-axis direction on the horizontal plane, and the fourth side face and the third side face are opposite to each other; and the second Y-axis reverse pushing piece is arranged on the bearing plate and pushes against the fourth side surface of the air guide plate to push the air guide plate to reversely move in the Y-axis direction on the horizontal plane.
Further, the first Y-axis forward pushing piece may be any one of a differential head and a servo motor with a lead screw; the second Y-axis forward pushing piece can be any one of a differential head and a servo motor with a screw rod; the first Y-axis reverse pushing piece can be any one of a spring, a cylinder and a buffer; the second Y-axis reverse pushing piece can be any one of a spring, a cylinder and a buffer; the first Y-axis forward pushing piece and the second Y-axis forward pushing piece are symmetrical about the center line of the air guide plate; the first Y-axis reverse pushing piece and the first Y-axis forward pushing piece are arranged oppositely; the second Y-axis reverse pushing piece and the second Y-axis forward pushing piece are arranged oppositely; the first Y-axis forward pushing piece, the second Y-axis forward pushing piece, the first Y-axis reverse pushing piece and the second Y-axis reverse pushing piece are respectively positioned at four corners of the air guide plate.
Further, the printing platen further comprises a first locking assembly for fixing the carrier plate to the base frame, the first locking assembly comprising: a connector having a receptacle; the first locking cylinder is arranged on the underframe, a piston rod of the first locking cylinder is inserted into the jack, a first movable space is arranged between the piston rod of the first locking cylinder and the jack, and the piston rod of the first locking cylinder can horizontally move in the jack; and the first pressing piece is fixed on the piston rod of the second locking cylinder, is positioned at the top end of the jack and is pressed on the connecting piece in a propping manner.
Further, a first anti-skid part is arranged on the top surface of the connecting piece, a second anti-skid part is arranged on the bottom surface of the first pressing piece, when the air guide plate is fixed with the bearing plate, the first locking cylinder drives the first pressing piece to move towards the connecting piece, and the first anti-skid part is abutted against the second anti-skid part; the first anti-skid part is a sawtooth-shaped bulge; the bearing plate is fixed on the underframe through at least four first locking assemblies, and the at least four first locking assemblies are distributed at four corners of the bearing plate; at least three supporting pieces are arranged at the top of the underframe, and a second coarse positioning hole matched with the supporting pieces is arranged at the bottom of the bearing plate; the chassis with the loading board contacts the department and is provided with first oilless gasket, first oilless gasket sets up support piece with between the thick locating hole of second.
Further, the top surface of air guide plate is provided with the recess, the bottom surface of recess is provided with the activity hole, the printing platen still includes second locking Assembly, second locking Assembly is used for with the air guide plate is fixed on the loading board, second locking Assembly includes: the second locking air cylinder is arranged on the bearing plate, a piston rod of the second locking air cylinder is inserted into the movable hole, a second movable space is arranged between the piston rod of the second locking air cylinder and the movable hole, and the piston rod of the second locking air cylinder can horizontally move in the movable hole; and the second pressing piece is fixed on the piston rod of the second locking cylinder, is arranged in the groove and abuts against the bottom surface of the groove, and a third movable space is arranged between the second pressing piece and the groove and can be used for the second pressing piece to horizontally move in the groove.
Further, a silica gel sheet and a third anti-slip part are arranged between the groove and the second pressing piece, when the air guide plate is fixed with the bearing plate, the second locking cylinder drives the second pressing piece to move towards the bottom of the groove, and the third anti-slip part is abutted against the silica gel sheet; the third anti-slip part is a sawtooth-shaped bulge; each air guide plate is fixed on the bearing plate through at least three second locking assemblies; a second oilless gasket is arranged at the contact position of the air guide plate and the bearing plate; the top surface of the air guide plate is provided with a through hole penetrating to the bottom surface of the air guide plate, the bottom surface of the air guide plate is provided with a coarse positioning piece, the coarse positioning piece and the air guide plate move synchronously, the coarse positioning piece is positioned at the bottom of the through hole, the coarse positioning piece and the through hole form the groove, the movable hole is arranged on the coarse positioning piece, the top surface of the bearing plate is provided with a first coarse positioning hole matched with the coarse positioning piece, a fourth movable space is arranged between the first coarse positioning hole and the coarse positioning piece, and the fourth movable space can be used for enabling the coarse positioning piece to horizontally move in the first coarse positioning hole; the second oilless gasket is arranged at the contact position of the coarse positioning piece and the first coarse positioning hole; the top surface of the bearing plate is provided with an annular sealing element, and the sealing element surrounds the first air guide plate and the second air guide plate.
Furthermore, the vacuum hole plugging printing device also comprises a bin body and a platen displacement transmission mechanism arranged in the bin body, wherein the bin body is provided with a large vacuum chamber and a small vacuum chamber, and the platen displacement transmission mechanism is used for driving the printing platen to move back and forth between the large vacuum chamber and the small vacuum chamber.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a vacuum hole plugging printing apparatus according to an embodiment;
FIG. 2 is a schematic structural view of a printing platen according to an embodiment;
FIG. 3 is an assembly diagram of the bearing plate, the air guide plate and the second locking assembly according to the first embodiment;
FIG. 4 is a schematic structural view of an air guide plate according to the first embodiment;
FIG. 5 is a schematic structural diagram of a first trim component according to an embodiment;
FIG. 6 is an enlarged view of the point A in FIG. 5;
FIG. 7 is a schematic structural view of a first locking assembly according to a first embodiment;
FIG. 8 is a schematic structural view of a second locking assembly according to the first embodiment;
reference numerals:
1. a large vacuum chamber; 2. a small vacuum chamber; 3. a printing platen; 4. a platen displacement transmission mechanism; 100. a chassis; 110. a support member; 200. a carrier plate; 210. a recess; 220. a first coarse positioning hole; 230. a second coarse positioning hole; 240. a first oil-free gasket; 300a, a first air guide plate; 300b, a second air guide plate; 310. a groove; 320. a movable hole; 330. a coarse positioning piece; 340. a first side surface; 350. a second side surface; 360. a third side; 370. a fourth side; 400. a first fine tuning assembly; 410. a first X drive module; 411. an X-axis motor; 412. an X-axis lead screw; 413. a guide member; 414. a chute; 415. a pusher member; 416. a transmission member; 417. an X-axis cylinder; 420. a first Y-axis drive module; 421. a first Y-axis motor; 422. a second Y-axis motor; 423. a first Y-axis lead screw; 424. a first Y-axis top block; 425. a second Y-axis lead screw; 426. a second Y-axis top block; 427. a first Y-axis cylinder; 428. a second Y-axis cylinder; 500. a second fine tuning assembly; 510. a second X-axis drive module; 511. a first X-axis mount; 512. a second X-axis mount; 513. an X-axis forward pushing piece; 514. an X-axis reverse pushing piece; 520. a second Y-axis drive module; 521. a first Y-axis mount; 522. a second Y-axis mount; 523. a third Y-axis mount; 524. a fourth Y-axis mount; 525. a first Y-axis forward pusher; 526. a second Y-axis forward pusher; 527. a first Y-axis reverse pusher; 528. a second Y-axis reverse pusher; 600. a first locking assembly; 610. a connecting member; 611. a jack; 612. a first anti-slip portion; 620. a cylinder mounting seat; 630. a first lock cylinder; 640. a first pressing member; 641. a second anti-slip portion; 700. a second locking assembly; 710. a second locking cylinder; 720. a second pressing member; 721. a third slippage prevention section; 730. a silica gel sheet; a. a first activity space; b. a second activity space; c. a third activity space; d. and a fourth activity space.
Detailed Description
Example one
A vacuum hole plugging printing device is shown in figures 1 to 8 and comprises a bin body, a printing platen 3 and a platen displacement transmission mechanism 4. The main bin is provided with a large vacuum chamber 1 and a small vacuum chamber 2, the large vacuum chamber 1 is used for printing a PCB, the small vacuum chamber 2 is arranged on one side of the large vacuum chamber 1, the small vacuum chamber 2 is communicated with the large vacuum chamber 1, and the small vacuum chamber 2 is used for replacing the PCB. The printing platen 3 is used to support a PCB board. The platen displacement transmission mechanism 4 is arranged in the bin body, and the platen displacement transmission mechanism 4 is used for driving the printing platen 3 to reciprocate between the large vacuum chamber 1 and the small vacuum chamber 2. Specifically, the connection relationship among the bin body, the printing platen 3 and the platen displacement transmission mechanism 4, the specific structure of the bin body and the specific structure of the platen displacement transmission mechanism 4 can be found in chinese patent nos. CN03100633.7, CN201420251667.4, CN201520067190.9, CN201820961902.5 and CN201120329798.6, which are not specifically discussed herein. The structure of the printing platen 3 is specifically described below.
Referring to fig. 1 to 8, the printing platen 3 includes a base frame 100, a carrier plate 200, a first fine adjustment assembly 400, a second fine adjustment assembly 500, a first locking assembly 600, and a second locking assembly 700. The bottom frame 100 is a rectangular frame. The carrier plate 200 is disposed on the top of the bottom chassis 100, at least two air guide plates are disposed on the carrier plate 200, the at least two air guide plates are mounted on the carrier plate 200 in a rectangular array, and the two air guide plates are disposed on the carrier plate 200 in the same row, which is described in terms of the structure, and the two air guide plates are the first air guide plate 300a and the second air guide plate 300 b. The first fine tuning assembly 400 is disposed between the bottom chassis 100 and the loading plate 200, and the first fine tuning assembly 400 is used for adjusting the position of the loading plate 200 on the horizontal plane. The number of the second fine tuning assemblies 500 is equal to the number of the air guide plates, each air guide plate is provided with one second fine tuning assembly 500, the second fine tuning assemblies 500 are arranged between the air guide plates and the bearing plate 200, one second fine tuning assembly 500 is used for adjusting the position of one air guide plate on the horizontal plane, namely, one second fine tuning assembly 500 is arranged between the first air guide plate 300a and the bearing plate 200, and one second fine tuning assembly 500 is also arranged between the second air guide plate 300b and the bearing plate 200. The first locking assemblies 600 are used to fix the loading plate 200 on the bottom chassis 100, and the loading plate 200 is fixed on the bottom chassis 100 by four first locking assemblies 600, the four first locking assemblies 600 being distributed at four corners of the loading plate 200. The second locking assembly 700 is used to fix the air guide plate on the loading plate 200, and each air guide plate is fixed on the loading plate 200 by at least three locking assemblies.
In actual work, a worker firstly places a plurality of PCBs to be printed on one air guide plate in sequence; then, the first fine adjustment assembly 400 is used to adjust the position of the loading plate 200, thereby indirectly adjusting the position of the first air guide plate 300a, and during the adjustment, the first locking assembly 600 is in an unlocked state, and the loading plate 200 and the bottom chassis 100 can move relative to each other; after the position of the first air guide plate 300a is adjusted, the first locking assembly 600 is actuated, and the first locking assembly 600 fixes the bottom chassis 100 and the bearing plate 200 together; then, the second fine tuning assembly 500 is used to adjust the position of the second air guide plate 300b, and whether the first air guide plate 300a needs to be adjusted by the second fine tuning assembly 500 can be selected according to the actual situation, during the adjustment, the second locking assembly 700 is in the unlocked state, and the air guide plate and the bearing plate 200 can move relatively; finally, when the positions of the first air guide plate 300a and the second air guide plate 300b are determined, the second locking assembly 700 is actuated, and the second locking assembly 700 fixes the air guide plates and the carrier plate 200 together.
Referring to fig. 1 to 8, the top surface of the carrier plate 200 is provided with an annular seal (not shown) surrounding all the air guide plates. Specifically, the top surface of the carrier plate 200 is provided with an annular recess 210, and the above-mentioned sealing member is embedded in the recess 210. In addition, the top surface of the bearing plate 200 is further provided with cylindrical first coarse positioning holes 220, and the number of the first coarse positioning holes 220 matches with the number of the second locking assemblies 700.
Referring to fig. 1 to 8, in order to reduce the friction between the carrier plate 200 and the bottom chassis 100, at least three supporting members 110 are installed on the top surface of the bottom chassis 100, a second coarse positioning hole 230 matched with the supporting members 110 is provided on the bottom surface of the carrier plate 200, and the diameter of the second coarse positioning hole 230 is larger than the outer diameter of the supporting members 110, so that the supporting members 110 can horizontally move in the second coarse positioning hole 230. When the carrier 200 is mounted on the bottom chassis 100, the supporting members 110 are inserted into the corresponding second coarse positioning holes 230, and the carrier 200 is supported by the supporting members 110, thereby greatly reducing the contact area between the carrier 200 and the bottom chassis 100. Further, the first oil-free gasket 240 is disposed between the top end of the supporting member 110 and the bottom surface of the second rough positioning hole 230, which helps to further reduce the friction between the carrier plate 200 and the bottom chassis 100.
Referring to fig. 1 to 8, the top surface of the air guide plate is provided with a cylindrical groove 310 which is matched with the second locking assembly 700, the bottom surface of the groove 310 is provided with a cylindrical movable hole 320 into which a piston rod of the second locking assembly 700 is inserted, and the axis of the movable hole 320 and the axis of the groove 310 are positioned on the same straight line. In addition, in order to make the movement of the gas guide plate on the loading plate 200 smoother, a second oil-free gasket (not shown) is disposed at a contact position of the gas guide plate and the loading plate 200. In practical design, a through hole penetrating through the top surface of the air guide plate to the bottom surface thereof is formed in the top surface of the air guide plate, a cylindrical coarse positioning member 330 is bolted to the bottom surface of the air guide plate, the coarse positioning member 330 and the air guide plate move synchronously, the coarse positioning member 330 is arranged at the bottom end of the through hole, the coarse positioning member 330 forms the groove 310 in the through hole, the movable hole 320 is arranged on the coarse positioning member 330, the axis of the movable hole 320 and the axis of the through hole are located on the same straight line, and the second oilless gasket is arranged between the bottom surface of the coarse positioning member 330 and the bottom surface of the first coarse positioning hole 220. Specifically, the coarse positioning element 330 is disposed in the first coarse positioning hole 220, and the coarse positioning between the air guide plate and the carrier plate 200 is achieved through the cooperation between the coarse positioning element 330 and the first coarse positioning hole 220. Moreover, a fourth movable space d is disposed between the coarse positioning element 330 and the first coarse positioning hole 220, and the fourth movable space d can allow the coarse positioning element 330 to horizontally move in the first coarse positioning hole 220, that is, the coarse positioning element 330 can horizontally rotate, horizontally move left and right, and horizontally move back and forth in the first coarse positioning hole 220, so as to prevent interference between the coarse positioning element 330 and the first coarse positioning hole 220 from affecting the horizontal movement of the air guide plate.
Referring to fig. 1 to 8, the first fine adjustment assembly 400 is used to adjust the horizontal position of the carrier plate 200 on the bottom frame 100, i.e., mainly adjust the positions of the carrier plate 200 in the X-axis direction and the Y-axis direction of the horizontal plane. The first fine tuning assembly 400 includes a first X-axis driving module 410 and a first Y-axis driving module 420. The first X-axis driving module 410 is disposed on the bottom chassis 100, and the first X-axis driving module 410 is configured to drive the supporting plate 200 to move in an X-axis direction on a horizontal plane, that is, under the action of the first X-axis driving module, the supporting plate 200 moves left and right on the horizontal plane. The first Y-axis driving module 420 is disposed on the bottom chassis 100, and the first Y-axis driving module 420 is used for driving the loading plate 200 to move in the Y-axis direction on the horizontal plane or horizontally rotate, that is, under the action of the first Y-axis driving module 420, the loading plate 200 moves back and forth on the horizontal plane or horizontally rotates on the horizontal plane.
Referring to fig. 1 to 8, the first X driving module 410 includes an X-axis motor 411, and the X-axis motor 411 is used for driving the supporting plate 200 to move in the X-axis direction on the horizontal plane. Specifically, an output shaft of the X-axis motor 411 is connected with an X-axis lead 412, and the X-axis lead 412 is in threaded connection with the base frame 100. The bottom of the bearing plate 200 is connected with a guide piece 413 through a bolt, a sliding groove 414 is arranged in the guide piece 413, a first end of the sliding groove 414 is a closed end, a second end of the sliding groove 414 is an open end, and the guiding direction of the sliding groove 414 is parallel to the moving direction of the bearing plate 200 in the X-axis direction of the horizontal plane. A pushing member 415 is slidably attached to the inside of the slide groove 414, and the pushing member 415 is inserted into the slide groove 414 from the open end of the slide groove 414. A transmission member 416 is rotatably connected to the bottom frame 100, the transmission member 416 is L-shaped, one end of the transmission member 416 is hinged to the pushing member 415, and the other end of the transmission member 416 is disposed on the moving track of the X-axis screw 412, that is, when the X-axis screw 412 moves, the X-axis screw 412 contacts the transmission member 416 to push the transmission member 416 to rotate.
Referring to fig. 1 to 8, since the solution that the supporting plate 200 is driven by the X-axis motor 411 to move only can push the supporting plate 200 to move in one direction, in order to enable the supporting plate 200 to move in two directions, the first X-driving module 410 further includes an X-axis cylinder 417, the X-axis cylinder 417 is detachably connected to the supporting plate 200, and the acting force of the X-axis cylinder 417 on the supporting plate 200 is opposite to the acting force of the X-axis motor 411 on the supporting plate 200, that is, the extending and retracting direction of the X-axis cylinder 417 is parallel to the moving direction of the supporting plate 200 in the X-axis direction of. Specifically, the X-axis cylinder 417 is mounted on the base frame 100 by a bolt, and a telescopic rod of the X-axis cylinder 417 is detachably connected with the bearing plate 200; of course, the X-axis cylinder 417 may also be mounted on the bearing plate 200, and the telescopic rod of the X-axis cylinder 417 is detachably connected to the bottom frame 100, which is not limited herein. In addition, in order to make the bearing plate 200 be stressed more uniformly and reduce the movement error of the bearing plate 200, the force of the X-axis cylinder 417 on the bearing plate 200 and the force of the pushing piece 415 on the closed end of the sliding chute 414 are located on the same straight line.
Referring to fig. 1 to 8, the first Y-axis driving module 420 includes a first Y-axis motor 421 and a second Y-axis motor 422, and the first Y-axis motor 421 and the second Y-axis motor 422 are used for driving the bearing plate 200 to move in the Y-axis direction on the horizontal plane or to rotate horizontally. Specifically, the X-axis motor 411, the first Y-axis motor 421 and the second Y-axis motor 422 are all located on the same side of the loading plate 200, the X-axis motor 411 is located between the first Y-axis motor 421 and the second Y-axis motor 422, and the first Y-axis motor 421 and the second Y-axis motor 422 are symmetrical with respect to a central line of the loading plate 200. An output shaft of the first Y-axis motor 421 is connected with a first Y-axis screw 423, the first Y-axis screw 423 is in threaded connection with the chassis 100, a first Y-axis ejector block 424 is arranged at the bottom of the bearing plate 200, and the first Y-axis ejector block 424 is arranged on a moving track of the first Y-axis screw 423, that is, when the first Y-axis screw 423 moves, the first Y-axis screw 423 touches the first Y-axis ejector block 424 to push the bearing plate 200 to move. An output shaft of the second Y-axis motor 422 is connected with a second Y-axis lead screw 425, the second Y-axis lead screw 425 is in threaded connection with the base frame 100, a second Y-axis ejector block 426 is arranged at the bottom of the bearing plate 200, and the second Y-axis ejector block 426 is arranged on a moving track of the second Y-axis lead screw 425, that is, when the second Y-axis lead screw 425 moves, the second Y-axis lead screw 425 touches the second Y-axis ejector block 426 to push the bearing plate 200 to move.
Referring to fig. 1 to 8, since the supporting plate 200 can only be pushed to move in one direction by the above-mentioned scheme of driving the supporting plate 200 by the first Y-axis motor 421 and the second Y-axis motor 422, in order to enable the supporting plate 200 to move in two directions, the first Y-axis driving module 420 includes a first Y-axis cylinder 427 and a second Y-axis cylinder 428, both the first Y-axis cylinder 427 and the second Y-axis cylinder 428 are connected to the supporting plate 200, the acting force of the first Y-axis cylinder 427 on the supporting plate 200 is opposite to the acting force of the first Y-axis motor 421 on the supporting plate 200, and the acting force of the second Y-axis cylinder 428 on the supporting plate 200 is opposite to the acting force of the second Y-axis motor 422 on the supporting plate 200. Specifically, the first Y-axis cylinder 427 is installed on the bottom chassis 100 by a bolt, and the telescopic rod of the first Y-axis cylinder 427 is detachably connected to the bearing plate 200, but of course, the first Y-axis cylinder 427 may also be installed on the bearing plate 200, and the telescopic rod of the first Y-axis cylinder 427 is detachably connected to the bottom chassis 100, which is not limited herein. The second Y-axis cylinder 428 is mounted on the bottom frame 100 by a bolt, and the telescopic rod of the second Y-axis cylinder 428 is detachably connected to the bearing plate 200, but the second Y-axis cylinder 428 may also be mounted on the bearing plate 200, and the telescopic rod of the second Y-axis cylinder 428 is detachably connected to the bottom frame 100, which is not limited herein. In addition, in order to make the loading plate 200 more uniformly stressed and reduce the movement error of the loading plate 200, the force of the first Y-axis cylinder 427 on the loading plate 200 and the force of the first Y-axis motor 421 on the loading plate 200 are located on the same straight line, and the force of the second Y-axis cylinder 428 on the loading plate 200 and the force of the second Y-axis motor 422 on the loading plate 200 are located on the same straight line.
Referring to fig. 1 to 8, the second fine adjustment assembly 500 is used to adjust the horizontal position of the air guide plate on the loading plate 200, i.e. mainly adjust the position of the air guide plate in the X-axis direction and the Y-axis direction of the horizontal plane. Specifically, the second fine tuning assembly 500 includes a second X-axis driving module 510 and a second Y-axis driving module 520. The second X-axis driving module 510 is disposed on the bearing plate 200, and the second X-axis driving module 510 is configured to drive the air guide plate to move in the X-axis direction on the horizontal plane, that is, under the action of the second X-axis driving module 510, the air guide plate moves left and right on the horizontal plane. The second Y-axis driving module 520 is disposed on the bearing plate 200, and the second Y-axis driving module 520 is configured to drive the air guide plate to move in the Y-axis direction on the horizontal plane or horizontally rotate, that is, under the action of the second Y-axis driving module 520, the air guide plate moves back and forth on the horizontal plane or horizontally rotates on the horizontal plane.
Referring to fig. 1 to 8, the second X-axis driving module 510 includes a first X-axis mount 511, a second X-axis mount 512, an X-axis forward pushing part 513, and an X-axis backward pushing part 514. The first X-axis mounting seat 511 and the second X-axis mounting seat 512 are both fixedly mounted on the top surface of the bearing plate 200 through bolts. The X-axis forward pushing element 513 is detachably mounted on the first X-axis mounting base 511, and the telescopic end of the X-axis forward pushing element 513 abuts against the first side surface 340 of the air guide plate to push the air guide plate to move forward in the X-axis direction on the horizontal plane. The X-axis reverse pushing element 514 is fixed on the second X-axis mounting base 512, the X-axis reverse pushing element 514 abuts against the second side 350 of the air guide plate to push the air guide plate to move in the X-axis direction on the horizontal plane in the reverse direction, the second side 350 of the air guide plate is opposite to the first side 340 of the air guide plate, and the acting force direction of the X-axis reverse pushing element 514 on the air guide plate is parallel to but opposite to the extending direction of the X-axis forward pushing element 513.
Preferably, the X-axis reverse pushing element 514 is disposed opposite to the X-axis forward pushing element 513, and the acting force of the X-axis reverse pushing element 514 on the air guide plate is on the same straight line with the acting force of the X-axis forward pushing element 513 on the air guide plate, so that the air guide plate is stressed more uniformly. In addition, the X-axis forward pushing element 513 may be any one of a differential head and a servo motor with a lead screw, and the X-axis backward pushing element 514 may be any one of a spring, a cylinder and a buffer, in this embodiment, referring to fig. 3, the X-axis forward pushing element 513 is a differential head, the X-axis backward pushing element 514 is a spring, a first end of the spring is fixed on the second X-axis mounting base 512, and a second end of the spring abuts against the second side 350 of the air guide plate.
When the air guide plate is driven to move horizontally leftwards, the X-axis forward pushing piece 513 is rotated clockwise, the telescopic end of the X-axis forward pushing piece 513 extends outwards, the telescopic end of the X-axis forward pushing piece 513 abuts against the first side surface 340 of the air guide plate, the X-axis forward pushing piece 513 pushes the air guide plate to move horizontally leftwards, and meanwhile, the X-axis reverse pushing piece 514 exerts resistance on the air guide plate. When the air guide plate is driven to move horizontally to the right, the X-axis forward pushing piece 513 is rotated anticlockwise, the telescopic end of the X-axis forward pushing piece 513 retracts inwards, and the X-axis reverse pushing piece 514 pushes the air guide plate to move horizontally to the right.
Referring to fig. 1 to 8, the second Y-axis driving module 520 includes a first Y-axis mount 521, a second Y-axis mount 522, a third Y-axis mount 523, a fourth Y-axis mount 524, a first Y-axis forward pusher 525, a second Y-axis forward pusher 526, a first Y-axis reverse pusher 527, and a second Y-axis reverse pusher 528. The first Y-axis mount 521, the second Y-axis mount 522, the third Y-axis mount 523, and the fourth Y-axis mount 524 are all fixedly mounted on the top surface of the bearing plate 200 through bolts. First Y axle forward pushes away piece 525 detachably and installs on first Y axle mount pad 521, and the flexible end that first Y axle forward pushes away piece 525 supports in the third side 360 of air deflector in order to promote the Y axle direction forward movement of air deflector on the horizontal plane, and the third side 360 of air deflector is mutually perpendicular with the first side 340 of air deflector. The second Y-axis forward pushing element 526 is detachably mounted on the second Y-axis mounting base 522, the telescopic end of the second Y-axis forward pushing element 526 abuts against the third side surface 360 of the air guide plate, and the direction of the acting force of the second Y-axis forward pushing element 526 on the air guide plate is the same as and parallel to the direction of the acting force of the first Y-axis forward pushing element 525 on the air guide plate. The first Y-axis reverse pushing element 527 is fixed on the third Y-axis mounting seat 523, the first Y-axis reverse pushing element 527 abuts against the fourth side surface 370 of the air guide plate to push the air guide plate to move reversely in the Y-axis direction on the horizontal plane, the third side surface 360 of the air guide plate is opposite to the fourth side surface 370 of the air guide plate, and the acting force direction of the first Y-axis reverse pushing element 527 on the air guide plate is parallel to but opposite to the extending direction of the first Y-axis forward pushing element 525. The second Y-axis reverse pushing element 528 is fixed on the fourth Y-axis mounting seat 524, the second Y-axis reverse pushing element 528 abuts against the fourth side 370 of the air guide plate to push the air guide plate to move in the Y-axis direction on the horizontal plane in the reverse direction, and the direction of the force applied by the second Y-axis reverse pushing element 528 to the air guide plate is parallel to but opposite to the extending direction of the second Y-axis forward pushing element 526.
Preferably, the second Y-axis positive push element 526 and the first Y-axis positive push element 525 are symmetrically disposed about a center line of the air guide plate, so that the air guide plate is more uniformly stressed.
Preferably, the first Y-axis reverse pushing element 527 is arranged opposite to the first Y-axis forward pushing element 525, and the acting force of the first Y-axis reverse pushing element 527 on the air guide plate and the acting force of the first Y-axis forward pushing element 525 on the air guide plate are on the same straight line, so that the air guide plate is stressed more uniformly. In addition, the first Y-axis forward pushing element 525 may be any one of a differential head and a servo motor with a lead screw, and the first Y-axis reverse pushing element 527 may be any one of a spring, a cylinder and a buffer, in this embodiment, referring to fig. 3, the first Y-axis forward pushing element 525 is a differential head, the first Y-axis reverse pushing element 527 is a spring, a first end of the spring is fixed on the third Y-axis mounting seat 523, and a second end of the spring abuts against the fourth side surface 370 of the air guide plate.
Preferably, the second Y-axis reverse pushing element 528 is disposed opposite to the second Y-axis forward pushing element 526, the acting force of the second Y-axis reverse pushing element 528 on the air guide plate and the acting force of the second Y-axis forward pushing element 526 on the air guide plate are on the same straight line, the second Y-axis reverse pushing element 528 and the first Y-axis reverse pushing element 527 are symmetrically disposed about the center line of the air guide plate, and the first Y-axis forward pushing element 525, the second Y-axis forward pushing element 526, the first Y-axis reverse pushing element 527, and the second Y-axis reverse pushing element 528 are respectively located at four corners of the air guide plate, so that the air guide plate is stressed more uniformly. In addition, the second Y-axis forward pushing element 526 may be any one of a differential head and a servo motor with a lead screw, and the second Y-axis backward pushing element 528 may be any one of a spring, a cylinder and a buffer, in this embodiment, referring to fig. 3, the second Y-axis forward pushing element 526 is a differential head, the second Y-axis backward pushing element 528 is a spring, a first end of the spring is fixed on the fourth Y-axis mounting seat 524, and a second end of the spring abuts against the fourth side 370 of the air guide plate.
When the air guide plate is driven to move forwards horizontally, the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 are rotated clockwise, the telescopic ends of the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 extend outwards, the telescopic ends of the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 abut against the third side surface 360 of the air guide plate, the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 push the air guide plate to move forwards horizontally, and meanwhile, the first Y-axis reverse pushing piece 527 and the second Y-axis reverse pushing piece 528 apply resistance to the air guide plate. When the air guide plate is driven to move horizontally backwards, the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 are rotated anticlockwise, the telescopic ends of the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 retract inwards, and the first Y-axis reverse pushing piece 527 and the second Y-axis reverse pushing piece 528 push the air guide plate to move horizontally rightwards. When the air guide plate is driven to rotate horizontally, the first Y-axis forward pushing piece 525 and the second Y-axis forward pushing piece 526 are rotated, the telescopic distance of the first Y-axis forward pushing piece 525 is unequal to the telescopic distance of the second Y-axis forward pushing piece 526, so that the moving distances of the two sides of the air guide plate are unequal, and the horizontal rotation of the air guide plate is realized.
Referring to fig. 1 to 8, the first locking assembly 600 includes a connecting member 610, a cylinder mount 620, a first locking cylinder 630, and a first pressing member 640. Wherein, the connecting piece 610 is fixedly connected to the side of the bearing plate 200 by bolts, and the top surface of the connecting piece 610 is provided with an insertion hole 611 for the first locking cylinder 630 to penetrate. The cylinder mount 620 is fixedly coupled to a side of the base frame 100 by bolts. The first locking cylinder 630 is fixedly mounted on the cylinder mounting seat 620 through a bolt, a piston rod of the first locking cylinder 630 is inserted into the insertion hole 611, a first movable space a is arranged between the piston rod of the first locking cylinder 630 and the insertion hole 611, and the first movable space a can allow the piston rod of the first locking cylinder 630 to horizontally move in the insertion hole 611, that is, the piston rod of the first locking cylinder 630 horizontally rotates, horizontally moves left and right, and horizontally moves back and forth in the insertion hole 611 relative to the bearing plate 200, so that interference between the piston rod of the first locking cylinder 630 and the insertion hole 611 is avoided to influence the horizontal movement of the bearing plate 200. The first pressing member 640 is detachably mounted on the piston rod of the second locking cylinder 710, the first pressing member 640 is located at the top end of the insertion hole 611, and the first pressing member 640 presses against the connecting member 610.
Referring to fig. 1 to 8, in order to increase the locking force of the first locking assembly 600, a first anti-slip portion 612 is disposed on the top surface of the connecting member 610, a second anti-slip portion 641 is disposed on the bottom surface of the first pressing member 640, both the first anti-slip portion 612 and the second anti-slip portion 641 are saw-toothed protrusions, and when the bottom chassis 100 is fixed to the carrier plate 200, the first anti-slip portion 612 and the second anti-slip portion 641 are pressed against each other. By increasing the coefficient of friction between the first compression member 640 and the connection member 610, the locking force of the first locking assembly 600 is greatly increased.
When the position of the bearing plate 200 needs to be adjusted, the first locking cylinder 630 drives the first pressing member 640 to move vertically upward, the bottom surface of the second pressing member 720 is separated from the top surface of the connecting member 610, and the chassis 100 and the bearing plate 200 can move relatively. When the position of the loading plate 200 is determined, the first locking cylinder 630 drives the first pressing member 640 to move vertically downward, and the bottom surface of the first pressing member 640 presses against the top surface of the connecting member 610, so that the bottom chassis 100 and the loading plate 200 are fixed together.
Referring to fig. 1 to 8, the second locking assembly 700 includes a second locking cylinder 710 and a second pressing member 720. The second locking cylinder 710 is installed at the bottom of the bearing plate 200 through a bolt, a piston rod of the second locking cylinder 710 is inserted into the movable hole 320 of the air guide plate, a second movable space b is arranged between the piston rod of the second locking cylinder 710 and the movable hole 320, and the second movable space b can allow the piston rod of the second locking cylinder 710 to horizontally move in the movable hole 320, that is, the piston rod of the second locking cylinder 710 horizontally rotates, horizontally moves left and right, and horizontally moves back and forth in the movable hole 320 relative to the air guide plate, so that interference between the piston rod of the second locking cylinder 710 and the movable hole 320 is avoided to influence the horizontal movement of the air guide plate. The second pressing member 720 is detachably mounted at the end of the piston rod of the second locking cylinder 710, the second pressing member 720 is disposed in the groove 310, the bottom surface of the second pressing member 720 abuts against the bottom surface of the groove 310, a third active space c is disposed between the second pressing member 720 and the groove 310, and the third active space c can allow the second pressing member 720 to horizontally move in the groove 310, that is, the second pressing member 720 horizontally rotates, horizontally moves left and right, horizontally moves back and forth in the groove 310 relative to the air guide plate, so that interference between the second pressing member 720 and the groove 310 is avoided to affect the horizontal movement of the air guide plate.
Referring to fig. 1 to 8, in order to increase the locking force of the second locking assembly 700, a silicone sheet 730 is disposed on the bottom surface of the groove 310, a third anti-sliding portion 721 is disposed on the bottom surface of the second pressing member 720, the third anti-sliding portion 721 is a saw-toothed protrusion, and when the air guide plate is fixed to the carrier plate 200, the third anti-sliding portion 721 presses against the silicone sheet 730. Of course, the bottom surface of the groove 310 may also be provided with a third anti-sliding portion 721, the third anti-sliding portion 721 is a saw-toothed protrusion, the bottom surface of the second pressing member 720 is provided with a silicone sheet 730, and when the air guide plate is fixed to the bearing plate 200, the silicone sheet 730 abuts against the anti-sliding portion. Or only the third anti-slip part 721 or the silicone sheet 730 is arranged between the second pressing member 720 and the groove 310. By increasing the friction coefficient between the second pressing member 720 and the groove 310, the locking force of the second locking assembly 700 is greatly increased.
When the position of the air guide plate needs to be adjusted, the second locking cylinder 710 drives the second pressing member 720 to move vertically upward, the bottom surface of the second pressing member 720 is separated from the bottom surface of the groove 310, and the air guide plate and the bearing plate 200 can move relatively. After the position of the air guide plate is determined, the second locking cylinder 710 drives the second pressing member 720 to move vertically downward, and the bottom surface of the second pressing member 720 abuts against the bottom surface of the groove 310, so that the air guide plate and the bearing plate 200 are fixed together.
Compared with the prior art, the printing platen 3 of the present embodiment has a plurality of air guide plates disposed on the carrier plate 200, so that a plurality of PCB boards can be placed on the printing platen 3 at one time. And then, each air guide plate is provided with a fine adjustment component, the positions of the PCBs are adjusted by utilizing the fine adjustment components, the position adjustment of the PCBs is realized, the vacuum screen printing machine can print a plurality of PCBs at one time, and the working efficiency is greatly improved. Taking this embodiment as an example, in actual work, a worker places two pieces of PCB boards to be printed on the first air guide plate 300a and the second air guide plate 300b respectively, and then uses the first fine adjustment assembly 400 to adjust the position of the carrier board 200, thereby indirectly adjusting the position of the first air guide plate 300a, and in the adjustment process, the first locking assembly 600 is in an unlocked state, and the carrier board 200 and the bottom chassis 100 can move relative to each other; after the position of the first air guide plate 300a is adjusted, the first locking assembly 600 is actuated, and the first locking assembly 600 fixes the bottom chassis 100 and the bearing plate 200 together; then, the second fine tuning assembly 500 is used to adjust the position of the second air guide plate 300b, and whether the first air guide plate 300a needs to be adjusted by the second fine tuning assembly 500 can be selected according to the actual situation, during the adjustment, the second locking assembly 700 is in the unlocked state, and the air guide plate and the bearing plate 200 can move relatively; finally, when the positions of the first air guide plate 300a and the second air guide plate 300b are determined, the second locking assembly 700 is actuated, and the second locking assembly 700 fixes the air guide plates and the carrier plate 200 together.
In addition, since the rectangular array of air guide plates is disposed on the carrier plate 200, air guide plates with different sizes can be replaced according to requirements to adapt to PCBs with different sizes. Taking this embodiment as an example, when a larger PCB needs to be printed, the first air guide plate 300a, the second air guide plate 300b, and part of the fine tuning components between the first air guide plate 300a and the second air guide plate 300b may be disassembled, a large air guide plate with the size equal to the sum of the sizes of the first air guide plate 300a and the second air guide plate 300b is replaced, and the remaining parts of the fine tuning components equipped with the two small air guide plates are combined into a new fine tuning component, and the horizontal position of the large air guide plate is adjusted by using the new fine tuning component.
Example two
A vacuum nozzle printing apparatus, which is different from the vacuum nozzle printing apparatus according to the first embodiment in that: the second fine-tuning assembly 500 is not disposed between the first air guide plate 300a and the carrier plate 200, the first air guide plate 300a is directly fixed on the carrier plate 200, and the position adjustment of the PCB on the first air guide plate 300a can only be performed by the first fine-tuning assembly 400.
In actual work, a worker places two pieces of PCB boards to be printed on the first air guide plate 300a and the second air guide plate 300b respectively, and then adjusts the position of the bearing plate 200 by using the first fine adjustment assembly 400, so as to indirectly adjust the position of the first air guide plate 300a, and in the adjustment process, the first locking assembly 600 is in an unlocked state, and the bearing plate 200 and the bottom frame 100 can move relatively; after the position of the first air guide plate 300a is adjusted, the first locking assembly 600 is actuated, and the first locking assembly 600 fixes the bottom chassis 100 and the bearing plate 200 together; then, the second fine tuning assembly 500 is used to adjust the position of the second air guide plate 300b, and during the adjustment process, the second locking assembly 700 is in the unlocked state, and the air guide plate and the bearing plate 200 can move relatively; finally, when the position of the second air guide plate 300b is determined, the second locking assembly 700 is actuated, and the second locking assembly 700 fixes the air guide plate and the loading plate 200 together.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (17)

1. A vacuum taphole printing apparatus, characterized in that, comprising a bin body, a printing platen (3) arranged in the bin body and a platen displacement transmission mechanism (4) arranged in the bin body, the bin body is provided with a large vacuum chamber (1) and a small vacuum chamber (2), the platen displacement transmission mechanism (4) is used for driving the printing platen (3) to move back and forth between the large vacuum chamber (1) and the small vacuum chamber (2), the printing platen (3) comprises:
a chassis (100);
a bearing plate (200) which is arranged on the bottom frame (100), and the top surface of the bearing plate is provided with a first air guide plate (300a) and a second air guide plate (300 b);
a first fine-tuning assembly (400) disposed between the chassis (100) and the carrier plate (200) for adjusting the position of the carrier plate (200);
a second fine tuning assembly (500) disposed between the bearing plate (200) and the second air guide plate (300b) for adjusting the position of the second air guide plate (300 b).
2. The vacuum nozzle printing device of claim 1, wherein: the first air guide plate (300a) is fixed on the bearing plate (200).
3. The vacuum nozzle printing device of claim 1, wherein: the printing platen (3) comprises two second fine adjustment assemblies (500), one second fine adjustment assembly (500) is arranged between the bearing plate (200) and the second air guide plate (300b), the other second fine adjustment assembly (500) is arranged between the bearing plate (200) and the first air guide plate (300a), the second fine adjustment assembly (500) arranged between the bearing plate (200) and the second air guide plate (300b) is used for adjusting the position of the second air guide plate (300b), and the second fine adjustment assembly (500) arranged between the bearing plate (200) and the first air guide plate (300a) is used for adjusting the position of the first air guide plate (300 a).
4. The vacuum nozzle printing device of claim 3, wherein: all the air guide plates are arranged on the bearing plate (200) in a rectangular array.
5. The vacuum nozzle printing device according to any one of claims 1 to 4,
the first fine adjustment component (400) is used for adjusting the position of the bearing plate (200) on a horizontal plane;
the first trim component (400) comprises:
a first X driving module (410) arranged on the chassis (100) and used for driving the bearing plate (200) to move in an X-axis direction on a horizontal plane;
a first Y-axis driving module (420) arranged on the bottom frame (100) and used for driving the bearing plate (200) to move in the Y-axis direction on the horizontal plane or horizontally rotate.
6. The vacuum nozzle printing device of claim 5, wherein:
the first X-axis driving module (410) comprises an X-axis motor (411), and the X-axis motor (411) is used for driving the bearing plate (200) to move in the X-axis direction on the horizontal plane;
the first Y-axis driving module (420) comprises a first Y-axis motor (421) and a second Y-axis motor (422), and the first Y-axis motor (421) and the second Y-axis motor (422) are used for driving the bearing plate (200) to move in the Y-axis direction on the horizontal plane or horizontally rotate.
7. The vacuum nozzle printing device of claim 6, wherein:
the first X-axis driving module (410) further comprises an X-axis cylinder (417), the X-axis cylinder (417) is connected with the bearing plate (200), and the acting force of the X-axis cylinder (417) on the bearing plate (200) is opposite to the acting force of the X-axis motor (411) on the bearing plate (200);
the first Y-axis driving module (420) comprises a first Y-axis cylinder (427) and a second Y-axis cylinder (428), the first Y-axis cylinder (427) and the second Y-axis cylinder (428) are both connected with the bearing plate (200), the acting force of the first Y-axis cylinder (427) on the bearing plate (200) is opposite to the acting force of the first Y-axis motor (421) on the bearing plate (200), and the acting force of the second Y-axis cylinder (428) on the bearing plate (200) is opposite to the acting force of the second Y-axis motor (422) on the bearing plate (200).
8. The vacuum nozzle printing device of claim 7,
the X-axis motor (411), the first Y-axis motor (421) and the second Y-axis motor (422) are all located on the same side of the bearing plate (200), and the X-axis motor (411) is located between the first Y-axis motor (421) and the second Y-axis motor (422);
the first Y-axis motor (421) and the second Y-axis motor (422) are symmetrical about the center line of the bearing plate (200);
an output shaft of the X-axis motor (411) is connected with an X-axis screw rod (412), the X-axis screw rod (412) is in threaded connection with the underframe (100), a sliding groove (414) is arranged at the bottom of the bearing plate (200), the first end of the sliding groove (414) is a closed end, the guiding direction of the sliding chute (414) is parallel to the moving direction of the bearing plate (200) in the X-axis direction of the horizontal plane, a pushing piece (415) is connected in the sliding groove (414) in a sliding way, a transmission piece (416) is connected on the chassis (100) in a rotating way, one end of the transmission piece (416) is hinged with the pushing piece (415), the other end of the transmission piece (416) is arranged on the moving track of the X-axis screw rod (412), when the X-axis screw rod (412) presses the transmission piece (416), the transmission piece (416) rotates to drive the pushing piece (415);
the transmission piece (416) is L-shaped;
an output shaft of the first Y-axis motor (421) is connected with a first Y-axis screw rod (423), the first Y-axis screw rod (423) is in threaded connection with the bottom frame (100), a first Y-axis ejector block (424) is arranged at the bottom of the bearing plate (200), and the first Y-axis ejector block (424) is arranged on a moving track of the first Y-axis screw rod (423);
an output shaft of the second Y-axis motor (422) is connected with a second Y-axis screw rod (425), the second Y-axis screw rod (425) is in threaded connection with the bottom frame (100), a second Y-axis ejector block (426) is arranged at the bottom of the bearing plate (200), and the second Y-axis ejector block (426) is arranged on a moving track of the second Y-axis screw rod (425);
the X-axis cylinder (417) is mounted on the base frame (100), and a telescopic rod of the X-axis cylinder (417) is connected with the bearing plate (200);
the first Y-axis cylinder (427) is installed on the underframe (100), and a telescopic rod of the first Y-axis cylinder (427) is connected with the bearing plate (200);
the second Y-axis cylinder (428) is installed on the base frame (100), and a telescopic rod of the second Y-axis cylinder (428) is connected with the bearing plate (200);
the acting force of the X-axis cylinder (417) on the bearing plate (200) and the acting force of the pushing piece (415) on the closed end of the sliding chute (414) are positioned on the same straight line;
the acting force of the first Y-axis cylinder (427) on the bearing plate (200) and the acting force of the first Y-axis motor (421) on the bearing plate (200) are positioned on the same straight line;
the acting force of the second Y-axis cylinder (428) on the bearing plate (200) and the acting force of the second Y-axis motor (422) on the bearing plate (200) are positioned on the same straight line.
9. The vacuum nozzle printing device according to any one of claims 1 to 4,
the second fine adjustment assembly (500) is used for adjusting the position of the second air guide plate (300b) on the horizontal plane;
the second trim component (500) comprises:
the second X-axis driving module (510) is arranged on the bearing plate (200) and is used for driving the second air guide plate (300b) to move in the X-axis direction on the horizontal plane;
and the second Y-axis driving module (520) is arranged on the bearing plate (200) and is used for driving the second air guide plate (300b) to move in the Y-axis direction on the horizontal plane or horizontally rotate.
10. The vacuum nozzle printing device according to claim 9, wherein said second X-axis drive module (510) comprises:
the X-axis forward pushing piece (513) is arranged on the bearing plate (200) and abuts against the first side surface (340) of the air guide plate to push the air guide plate to move in the X-axis direction on the horizontal plane in a forward direction;
the X-axis reverse pushing piece (514) is arranged on the bearing plate (200) and is abutted against a second side surface (350) of the air guide plate to push the air guide plate to move reversely in the X-axis direction on the horizontal plane, and the second side surface (350) is opposite to the first side surface (340).
11. The vacuum nozzle printing device of claim 10, wherein:
the X-axis forward pushing piece (513) can be any one of a differential head and a servo motor with a screw rod;
the X-axis reverse pushing piece (514) can be any one of a spring, a cylinder and a buffer;
the X-axis reverse pushing piece (514) is opposite to the X-axis forward pushing piece (513).
12. The vacuum nozzle printing device according to claim 11, wherein said second Y-axis drive module (520) comprises:
the first Y-axis forward pushing piece (525) is arranged on the bearing plate (200) and abuts against the third side surface (360) of the air guide plate to push the air guide plate to move in the Y-axis direction on the horizontal plane in the forward direction;
the second Y-axis positive pushing piece (526) is arranged on the bearing plate (200) and abuts against the third side surface (360) of the air guide plate to push the air guide plate to move in the Y-axis direction on the horizontal plane in the positive direction;
a first Y-axis reverse pushing piece (527) arranged on the bearing plate (200) and abutted against a fourth side surface (370) of the air guide plate to push the air guide plate to reversely move in the Y-axis direction on the horizontal plane, wherein the fourth side surface (370) and the third side surface (360) are opposite to each other;
and the second Y-axis reverse pushing piece (528) is arranged on the bearing plate (200) and abuts against the fourth side surface (370) of the air guide plate to push the air guide plate to reversely move in the Y-axis direction on the horizontal plane.
13. The vacuum nozzle printing device of claim 12, wherein:
the first Y-axis forward pushing piece (525) can be any one of a differential head and a servo motor with a screw rod;
the second Y-axis forward pushing piece (526) can be any one of a differential head and a servo motor with a screw rod;
the first Y-axis reverse pushing piece (527) can be any one of a spring, a cylinder and a buffer;
the second Y-axis reverse pushing piece (528) can be any one of a spring, a cylinder and a buffer;
the first Y-axis positive push (525) and the second Y-axis positive push (526) are symmetrical about a midline of the air guide plate;
the first Y-axis reverse pushing piece (527) is opposite to the first Y-axis forward pushing piece (525);
the second Y-axis reverse pushing piece (528) is arranged opposite to the second Y-axis forward pushing piece (526);
the first Y-axis forward pushing piece (525), the second Y-axis forward pushing piece (526), the first Y-axis reverse pushing piece (527) and the second Y-axis reverse pushing piece (528) are respectively positioned at four corners of the air guide plate.
14. The vacuum nozzle printing device according to any one of claims 1 to 4,
the printing platen (3) further comprises a first locking assembly (600), the first locking assembly (600) being used for fixing the carrier plate (200) on the base frame (100), the first locking assembly (600) comprising:
a connector (610) having a receptacle (611);
a first locking cylinder (630) installed on the chassis (100), a piston rod of the first locking cylinder being inserted into the insertion hole (611), a first movable space (a) being provided between the piston rod of the first locking cylinder and the insertion hole (611), the first movable space (a) allowing the piston rod of the first locking cylinder (630) to horizontally move in the insertion hole (611);
and the first pressing piece (640) is fixed on the piston rod of the second locking cylinder (710), is positioned at the top end of the insertion hole (611), and is pressed against the connecting piece (610).
15. The vacuum nozzle printing device of claim 14,
a first anti-skid part (612) is arranged on the top surface of the connecting part (610), a second anti-skid part (641) is arranged on the bottom surface of the first pressing part (640), when the air guide plate is fixed with the bearing plate (200), the first locking cylinder (630) drives the first pressing part (640) to move towards the connecting part (610), and the first anti-skid part (612) is pressed against the second anti-skid part (641);
the first antiskid part (612) is a sawtooth-shaped bulge;
the bearing plate (200) is fixed on the chassis (100) through at least four first locking assemblies (600), and the at least four first locking assemblies (600) are distributed at four corners of the bearing plate (200);
at least three supporting pieces (110) are arranged at the top of the bottom frame (100), and a second rough positioning hole (230) matched with the supporting pieces (110) is arranged at the bottom of the bearing plate (200);
a first oil-free gasket (240) is arranged at the contact position of the bottom frame (100) and the bearing plate (200), and the first oil-free gasket (240) is arranged between the support piece (110) and the second coarse positioning hole (230).
16. The vacuum nozzle printing device according to any one of claims 1 to 4,
the top surface of the air guide plate is provided with a groove (310), the bottom surface of the groove (310) is provided with a movable hole (320),
the printing platen (3) further comprises a second locking assembly (700), the second locking assembly (700) is used for fixing the air guide plate on the bearing plate (200), and the second locking assembly (700) comprises:
the second locking air cylinder (710) is arranged on the bearing plate (200), a piston rod of the second locking air cylinder is inserted into the movable hole (320), a second movable space (b) is arranged between the piston rod of the second locking air cylinder and the movable hole (320), and the piston rod of the second locking air cylinder (710) can horizontally move in the movable hole (320);
and the second pressing piece (720) is fixed on a piston rod of the second locking cylinder (710), arranged in the groove (310), and abutted against the bottom surface of the groove (310), and a third movable space (c) is arranged between the second pressing piece and the groove (310), and the third movable space (c) can be used for the second pressing piece (720) to horizontally move in the groove (310).
17. The vacuum nozzle printing device of claim 16,
a silicon sheet (730) and a third anti-sliding part (721) are arranged between the groove (310) and the second pressing piece (720), when the air guide plate is fixed with the bearing plate (200), the second locking cylinder (710) drives the second pressing piece (720) to move towards the bottom of the groove (310), and the third anti-sliding part (721) is pressed against the silicon sheet (730);
the third anti-slip part (721) is a sawtooth-shaped bump;
each air guide plate is fixed on the bearing plate (200) through at least three second locking assemblies (700);
a second oilless gasket is arranged at the contact position of the air guide plate and the bearing plate (200);
the top surface of the air guide plate is provided with a through hole penetrating to the bottom surface of the air guide plate, the bottom surface of the air guide plate is provided with a coarse positioning piece (330), the coarse positioning piece (330) and the air guide plate move synchronously, the coarse positioning piece (330) is positioned at the bottom of the through hole, the coarse positioning piece (330) and the through hole form a groove (310), the movable hole (320) is arranged on the coarse positioning piece (330), the top surface of the bearing plate (200) is provided with a first coarse positioning hole (220) matched with the coarse positioning piece (330), a fourth movable space (d) is arranged between the first coarse positioning hole (220) and the coarse positioning piece (330), and the fourth movable space (d) can be used for the coarse positioning piece (330) to move horizontally in the first coarse positioning hole (220);
the second oilless gasket is arranged at the contact position of the coarse positioning piece (330) and the first coarse positioning hole (220);
the top surface of the bearing plate (200) is provided with an annular sealing element, and the sealing element surrounds the first air guide plate (300a) and the second air guide plate (300 b).
CN202010768318.XA 2020-08-03 2020-08-03 Vacuum plug hole printing device Active CN111873611B (en)

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CN113352734B (en) * 2021-06-02 2022-05-31 广东捷骏电子科技有限公司 Hole plugging printing device

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