A fully automatic solder paste printer for flexible circuit reels

Abstract

The present invention discloses a fully automatic solder paste printer for flexible circuit tapes, which conveys the flexible tape to the positioning suction cavity platform mechanism area through a tape conveying mechanism, is adsorbed and positioned, and then a CCD phase-taking mechanism moves to the top of the positioning suction cavity platform mechanism to take phases. Afterwards, the control system controls the adjustment support adjustment platform to move toward the X-axis or Y-axis to adjust the position of the positioning suction cavity platform mechanism, ensuring that the solder pad position of the steel mesh and the solder point of the flexible tape correspond one to one. Then, a scraper printing mechanism and a steel mesh loading mechanism for fixing the steel mesh lower the steel mesh to a preset printing position, and the scraper scrapes the solder paste to achieve batch, accurate and rapid solder paste application on the flexible circuit board tape, thereby improving production efficiency and printing quality.

Description

Technical Field

[0001] The present invention relates to the technical field of solder paste printers, and in particular to a fully automatic solder paste printer for flexible circuit tapes. Background Art

[0002] Solder paste printers are crucial components in the surface mount industry, precisely applying solder paste through a molded screen onto printed circuit boards during the manufacturing process. In mass production, solder paste printing screens must be customized for each printed circuit board to improve production efficiency. Existing solder paste printers in the industry are designed to print on rigid printed circuit boards.

[0003] The solder paste on the flexible circuit board tape is added one dot at a time. No solder paste printer can automatically print on the flexible circuit board tape. Therefore, the traditional method of applying solder paste on the flexible circuit board tape is very time-consuming and inefficient. How to quickly apply solder paste to the flexible circuit board tape is a technical problem that needs to be solved.

[0004] Therefore, there is an urgent need to develop a fully automatic solder paste printer for flexible circuit boards. Summary of the Invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a fully automatic solder paste printer for flexible circuit tape, which is used to quickly apply solder paste to the flexible circuit board tape, thereby improving production efficiency and printing quality.

[0006] In view of this purpose, the present invention provides a fully automatic solder paste printer for flexible circuit tapes, comprising a frame, a support and adjustment platform provided on the frame, a positioning suction cavity platform mechanism for adsorbing a target tape, a tape conveying mechanism provided on both sides of the positioning suction cavity platform mechanism, the tape conveying mechanism being used for loading and unloading the target tape, a scraper printing mechanism and a steel mesh loading mechanism for fixing a steel mesh provided above the positioning suction cavity platform mechanism, a CCD photographing mechanism further provided on the frame, the CCD photographing mechanism being higher than the positioning suction cavity platform mechanism, and a moving trajectory of the CCD photographing mechanism crossing over the positioning suction cavity platform mechanism;

[0007] A control system, after obtaining the instruction sent by the CCD imaging mechanism, controls the adjustment of the support adjustment platform and controls the steel mesh loading mechanism to descend to a preset position, and then controls the scraper to perform the solder paste scraping operation.

[0008] Furthermore, the support adjustment platform includes a support plate and a mounting base plate, the short side of the support plate is fixedly connected to the output shaft of the X-axis motor, and the long side of the support plate is fixedly connected to the output shafts of several Y-axis motors. The X-axis motor and the Y-axis motor are used to push the support plate to adjust in the X and Y directions, and the two sides of the short side of the mounting base plate are respectively slidably connected to several vertical guide rails.

[0009] Furthermore, the positioning suction chamber platform mechanism includes a suction chamber platform and a guide rail width adjustment device, a plurality of suction holes are evenly arranged on the suction chamber platform, the top surface of the suction chamber platform includes a plane and inclined surfaces arranged on both sides of the plane, the inclined surfaces are set at a certain slope, and the bottom of the suction chamber platform is connected to the vacuum generator; the guide rail width adjustment device includes two groups of adjustment guide rails arranged on both sides of the suction chamber platform, and two groups of guide rail width adjustment screw rods passing through the two adjustment guide rails, and an adsorption guide wheel is also provided between the two groups of adjustment guide rails.

[0010] Furthermore, the tape conveying mechanism includes a feeding table, a tape feeding motor is provided on the feeding table, and two slide rails are provided at intervals on the inner side of the tape feeding motor; one side of the screw nut of the tape feeding motor is fixedly connected to the clamping cylinder group, and the clamping cylinder group includes two clamping cylinders symmetrically arranged on a connecting plate, and a transverse guide rail is provided on the connecting plate, the bottom of each clamping cylinder is fixedly connected to a mounting plate, and the bottom of a mounting plate is slidingly connected to the transverse guide rail, and a feeding width adjustment screw rod for adjusting the feeding width is also installed on the mounting plate, and the two ends of the bottom of the connecting plate are slidably connected by a slider and a slide rail respectively, and the two clamping cylinders respectively clamp one side edge of the target tape to pull the tape to move.

[0011] Furthermore, the tape conveying mechanism also includes a tape limiting guide wheel and a tape support plate arranged at the loading port, one end of the tape support plate is fixed on the inner side of the tape limiting guide wheel, and the other end of the tape support plate spans the feeding width adjustment screw rod and is fixed on the feeding table.

[0012] Furthermore, the frame is provided with a vertical bracket, the vertical bracket is provided with a vertical motor, the nut on the screw rod of the vertical motor is fixedly connected to the vertical plate, the vertical plate is provided with the scraper printing mechanism and the steel mesh loading mechanism, the vertical plate is embedded with a pulley assembly, and the vertical plates on the upper and lower sides of the pulley assembly are respectively provided with a horizontal slide rail, the scraper printing mechanism is respectively fixedly connected to the belt of the pulley assembly, and is slidably connected to the two horizontal slide rails.

[0013] Furthermore, the scraper printing mechanism includes a scraper bracket, a scraper lifting motor is provided in the scraper bracket, and the output shaft of the scraper lifting motor is fixedly connected to the scraper;

[0014] The steel mesh loading mechanism includes two steel mesh mounting arms, which are respectively arranged on both sides of the scraper printing mechanism. Several locking cylinders for locking the steel mesh are provided on the inner side of the steel mesh mounting arms. A steel mesh supporting plate is fixed on the inner side of the steel mesh mounting arm. The steel mesh supporting plate is located below the locking cylinder. The locking cylinder locks the steel mesh on the steel mesh supporting plate.

[0015] Furthermore, a driving motor is provided on the table of the frame close to the vertical bracket, and the screw rod of the driving motor is arranged across the table of the frame along the X-axis direction, and a mounting nut is provided on the screw rod, and the mounting nut is provided with the CCD phase-taking mechanism and the steel mesh cleaning mechanism. The CCD phase-taking mechanism and the steel mesh cleaning mechanism are higher than the positioning suction chamber platform mechanism and the tape conveying mechanism, and the CCD phase-taking mechanism and the steel mesh cleaning mechanism move back and forth under the drive of the driving motor.

[0016] Furthermore, the CCD imaging mechanism includes a CCD mounting bracket, a CCD driving motor is provided in the CCD mounting bracket, the output shaft of the CCD driving motor is fixedly connected to the CCD camera, the CCD driving motor drives the CCD camera to move along the Y-axis direction, and a calculation module is provided in the CCD camera. The calculation module calculates the compensation distance according to the acquired image position and the preset image position in the control system and returns a digital signal to the control system. The control system controls the tape conveying mechanism to adjust the position of the target tape.

[0017] Furthermore, the steel mesh cleaning mechanism includes a cleaning paper device, the cleaning paper device includes a paper receiving motor, the output shaft of the paper receiving motor is fixedly connected to the paper receiving reel, cleaning paper is wound on the paper receiving reel, and a cleaning paper placement rack for placing clean cleaning paper is placed next to the cleaning paper device; a wiping plate device is provided between the cleaning paper device and the cleaning paper placement rack, and the wiping plate device includes wiping plate lifting cylinders on both sides and wiping plates fixedly connected to the piston rods of the lifting cylinders.

[0018] Beneficial effects of the present invention: An embodiment of the present invention provides a fully automatic solder paste printer for flexible circuit tapes, which conveys the flexible tape to the positioning suction cavity platform mechanism area through a tape conveying mechanism, adsorbs and positions it, and then the CCD photographing mechanism moves to the top of the positioning suction cavity platform mechanism to take the phase. Afterwards, the control system controls the adjustment support adjustment platform to move toward the X-axis or Y-axis to adjust the position of the positioning suction cavity platform mechanism to ensure that the solder pad position of the steel mesh and the solder point of the flexible tape correspond one to one. Then, the scraper printing mechanism and the steel mesh loading mechanism for fixing the steel mesh bring the steel mesh down to the preset printing position, and the scraper then performs the solder paste scraping action to achieve batch, accurate and rapid solder paste application on the flexible circuit board tape, thereby improving production efficiency and printing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic diagram of the overall structure of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a support and adjustment platform of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention;

[0022] like Figure 3 A schematic structural diagram of a positioning and suction cavity platform mechanism of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of the structure of a suction cavity platform of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention

[0024] Figure 5 A schematic structural diagram of a tape conveying mechanism of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a scraper printing mechanism and a stencil loading mechanism of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention;

[0026] Figure 7 A schematic structural diagram of a CCD imaging mechanism of a fully automatic solder paste printer for flexible circuit tapes provided by an embodiment of the present invention;

[0027] Figure 8 A schematic structural diagram of a steel mesh cleaning mechanism of a fully automatic solder paste printer for flexible circuit tapes provided in an embodiment of the present invention.

[0028] In the figure: 1. Frame; 10. Drive motor; 11. Screw; 2. Support adjustment platform; 20. Support plate; 21. Mounting base plate; 22. X-axis motor; 23. Y-axis motor; 24. Vertical guide rail; 3. Positioning suction chamber platform mechanism; 30. Suction chamber platform; 31. Guide rail width adjustment device; 301. Suction hole; 302. Plane; 303. Inclined surface; 310. Adjusting guide rail; 311. Guide rail width adjustment screw; 32. Adsorption guide wheel; 4. Tape conveying mechanism; 40. Feeding table; 41. Tape feeding motor; 42. Slide rail; 43. Screw nut; 44. Clamping cylinder group; 440. Clamping claw cylinder; 441. Connecting plate; 442. Horizontal guide rail; 443. Mounting plate; 444, feed width adjustment screw rod; 5, scraper printing mechanism; 50, scraper bracket; 51, scraper lifting motor; 52, scraper; 6, stencil loading mechanism; 60, stencil mounting arm; 61, locking cylinder; 62, stencil supporting plate; 7, CCD camera mechanism; 70, CCD mounting bracket; 71, CCD drive motor; 72, CCD camera; 8, vertical bracket; 80, vertical plate; 81, pulley assembly; 82, horizontal slide rail; 9, stencil cleaning mechanism; 90, cleaning paper device; 91, paper collection motor; 92, paper collection reel; 93, cleaning paper; 94, cleaning paper placement rack; 95, wiping plate device; 950, lifting cylinder; 951, wiping plate. DETAILED DESCRIPTION

[0029] An embodiment of the present invention provides a fully automatic solder paste printer for a flexible circuit tape, which is used to quickly apply solder paste to a flexible circuit board tape, thereby improving production efficiency and printing quality.

[0030] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0032] Example:

[0033] Please refer to Figure 1 , Figure 1 The overall structure diagram of a flexible circuit tape fully automatic solder paste printer is shown in FIG. Figure 1 As shown, a fully automatic solder paste printer for flexible circuit tapes includes a frame 1, a support and adjustment platform 2 is provided on the frame 1, and a positioning suction cavity platform mechanism 3 for sucking a target tape (not shown in the figure) is provided on the support and adjustment platform 2. The positioning suction cavity platform mechanism 3 is a vacuum suction cavity platform. The target tape is sucked onto the positioning suction cavity platform mechanism 3 by vacuuming and positioned, thereby facilitating solder paste printing on the target tape.

[0034] A tape conveying mechanism 4 is provided on both sides of the positioning suction chamber platform mechanism 3. The tape conveying mechanism 4 is used for loading and unloading the target tape. The target tape is loaded from the loading port of the tape conveying mechanism 4 and laid flat into the tape conveying mechanism 4. Since the target tape is a flexible tape, a tape buffer structure plate is provided at the loading port. The target tape can be placed along the buffer structure plate to play a supporting role. Similarly, a tape buffer structure plate is also provided at the position of the discharge port to provide a buffering effect after the target tape is coated with solder paste.

[0035] A scraper printing mechanism 5 and a steel mesh loading mechanism 6 for fixing the steel mesh are provided above the positioning and suction cavity platform mechanism 3. A CCD photographing mechanism 7 is also provided on the frame 1. The CCD photographing mechanism 7 is higher than the positioning and suction cavity platform mechanism 3. The moving track of the CCD photographing mechanism 7 crosses the top of the positioning and suction cavity platform mechanism 3.

[0036] The control system obtains the instructions sent by the CCD camera mechanism 7, controls the adjustment of the support adjustment platform 2 and controls the stencil loading mechanism 6 to descend to a preset position, and then controls the scraper to scrape the solder paste. The control system is electrically connected to each driving mechanism of the flexible circuit tape fully automatic solder paste printer, and can control the operation of the printer according to the set program.

[0037] Working principle: The flexible web is transported to the area of the positioning suction cavity platform mechanism 3 through the web conveying mechanism 4, and is adsorbed and positioned. Then the CCD phase-taking mechanism 7 moves to the top of the positioning suction cavity platform mechanism 3 to take the phase. After that, the control system controls the adjustment support adjustment platform 2 to move toward the X-axis or Y-axis to adjust the position of the positioning suction cavity platform mechanism 3 to ensure that the solder pad position of the steel mesh and the solder point of the flexible web correspond one to one. Then the scraper printing mechanism 5 and the steel mesh loading mechanism 6 for fixing the steel mesh descend with the steel mesh (not shown in the figure). The steel mesh descends to the preset printing position, and the scraper scrapes the solder paste to achieve batch and accurate addition of solder paste on the flexible web, thereby improving printing quality.

[0038] Further, such as Figure 1 and Figure 2As shown, the support adjustment platform 2 includes a support plate 20 and a mounting base plate 21. The short side of the support plate 20 is fixedly connected to the output shaft of the X-axis motor 22, and the long side of the support plate 20 is fixedly connected to the output shafts of several Y-axis motors 23. The X-axis motor 22 and the Y-axis motor 23 are used to push the support plate 20 to adjust in the X and Y directions. The two sides of the short side of the mounting base plate 21 are respectively slidably connected to several vertical guide rails 24.

[0039] Specifically, the support plate 20 is driven to move in the X-axis direction or the Y-axis direction by the X-axis motor 22 and the Y-axis motor 23, and the adjustment of the support adjustment platform 2 drives the adjustment of the positioning suction platform mechanism 3 and the tape conveying mechanism 4 thereon.

[0040] Further, such as Figure 3 and Figure 4 As shown, the positioning suction chamber platform mechanism 3 includes a suction chamber platform 30 and a guide rail width adjustment device 31. A plurality of suction holes 301 are evenly arranged on the suction chamber platform 30. The top surface of the suction chamber platform 30 includes a plane 302 and inclined surfaces 303 arranged on both sides of the plane 302. The inclined surfaces 303 are arranged at a certain slope. The bottom of the suction chamber platform 30 is connected to the vacuum generator; the guide rail width adjustment device 31 includes two groups of adjustment guide rails 310 arranged on both sides of the suction chamber platform 30, and two groups of guide rail width adjustment screw rods 311 passing through the two adjustment guide rails 310. An adsorption guide wheel 32 is also provided between the two groups of adjustment guide rails 310.

[0041] Specifically, a plurality of suction holes 301 are arranged on the plane 302 and the inclined surface 303 of the suction cavity platform 30 of the positioning suction cavity platform mechanism 3. The suction cavity platform 30 generates negative pressure through the vacuum generator, and the target web is adsorbed on the positioning suction cavity platform mechanism 3; the distance between the two sets of guide rails 310 and the distance between the adsorption guide wheels 32 are adjusted by two sets of guide rail width adjustment screw rods 311, so that the target web can pass smoothly.

[0042] Further, such as Figure 5 As shown, the tape conveying mechanism 4 includes a feeding platform 40, on which a tape feeding motor 41 is provided, and two slide rails 42 are provided at intervals on the inner side of the tape feeding motor 41; one side of the screw nut 43 of the tape feeding motor 41 is fixedly connected to a connecting plate 441, and a clamping cylinder group 44 is provided on the connecting plate 441, and the clamping cylinder group 44 includes two clamping cylinders 440 symmetrically arranged at both ends of the connecting plate 441, and the connecting plate 441 is driven by the tape feeding motor 41 to move along the X-axis direction;

[0043] In addition, a transverse guide rail 442 is provided on the connecting plate 441. The bottom of each clamping cylinder 440 is fixedly connected to a mounting plate 443, and the bottom of each mounting plate 443 is slidably connected to a transverse guide rail 442. A feed width adjustment screw 444 for adjusting the feed width is also installed on the mounting plate 443. The feed width adjustment screw 444 drives the clamping cylinder 440 on the mounting plate 443 to move in the Y-axis direction to adjust the width between the two clamping cylinders 440 so that the target tape can pass through conveniently.

[0044] Specifically, the two ends of the bottom of the connecting plate 441 are slidably connected by a slider 45 and a slide rail 42 respectively. The movement of the connecting plate 441 drives the movement of the two clamping cylinders 440, so that the two clamping cylinders 440 respectively clamp one side edge of the tape to pull the tape to move.

[0045] Furthermore, the tape conveying mechanism 4 also includes a tape limiting guide wheel 46 and a tape support plate 47 arranged at the loading port, one end of the tape support plate 47 is fixed on the inner side of the tape limiting guide wheel 46, and the other end of the tape support plate 47 spans the feeding width adjustment screw rod 444 and is fixed on the feeding platform 40.

[0046] Specifically, by setting a tape limiting guide wheel 46 at the position of the loading port, the target tape is easier to load. By setting the tape support plate 47, the target tape has a support at the bottom when it is pulled, so that it is raised to the position of the clamping cylinder 440 and can be accurately transported.

[0047] Further, such as Figure 1 and Figure 6 As shown, the frame 1 is further provided with a vertical bracket 8, and the vertical bracket 8 is provided with a vertical motor (not shown in the figure), and the nut on the screw rod of the vertical motor (not shown in the figure) is fixedly connected to the vertical plate 80, and the scraper printing mechanism 5 and the steel mesh loading mechanism 6 are provided on the vertical plate 80, and a pulley assembly 81 is embedded in the vertical plate 80, and a horizontal slide rail 82 is respectively provided on the vertical plate 80 on the upper and lower sides of the pulley assembly 81, and the scraper printing mechanism 5 is fixedly connected to the belt of the pulley assembly 81 and is slidably connected to the two horizontal slide rails 82.

[0048] Specifically, the scraper printing mechanism 5 and the steel mesh loading mechanism 6 are driven up and down by a vertical motor, and a pulley assembly 81 is set. The pulley assembly 81 includes two rotating shafts set along the X-axis direction, and belts are sleeved on the two rotating shafts. The scraper printing mechanism 5 and the belt of the pulley assembly 81 are fixedly connected, and the two horizontal slide rails 82 are slidingly connected. The scraper printing mechanism 5 can reciprocate in the X-axis direction with the movement of the belt, but the steel mesh loading mechanism 6 and the horizontal slide rail 82 are fixedly connected. The steel mesh loading mechanism 6 is fixed on the horizontal slide rail 82 using a fixing part so that it cannot move. A steel mesh (not shown in the figure) is installed on the steel mesh loading mechanism 6. The position of the steel mesh is fixed. The area of the steel mesh is larger than the area of the positioning suction cavity platform mechanism 3. The positioning suction cavity platform mechanism 3 is adjusted to adjust the empty space of the steel mesh and the position of the pad on the target roll to correspond one to one.

[0049] Further, such as Figure 6 As shown, the scraper printing mechanism 5 includes a scraper bracket 50, a scraper lifting motor 51 is provided in the scraper bracket 50, and the output shaft of the scraper lifting motor 51 is fixedly connected to the scraper 52;

[0050] The steel mesh loading mechanism 6 includes two steel mesh mounting arms 60, which are respectively arranged on both sides of the scraper printing mechanism 5. The inner side of the steel mesh mounting arm 60 is provided with a plurality of locking cylinders 61 for locking the steel mesh. A steel mesh supporting plate 62 is fixed to the inner side of the steel mesh mounting arm 60. The steel mesh supporting plate 62 is located below the locking cylinder 61, and the locking cylinder 61 locks the steel mesh on the steel mesh supporting plate 62.

[0051] Specifically, the steel mesh is fixed by the locking cylinder 61 on the two steel mesh mounting arms 60 and the steel mesh supporting plate 62, and the steel mesh and the scraper 52 are simultaneously lowered to the preset processing position by the vertical motor. Then the scraper 52 is driven again by the scraper lifting motor 51 to lower or move up to adjust the position of scraping solder paste, and the solder paste scraping work is carried out.

[0052] Further, such as Figure 1 As shown, a driving motor 10 is provided on the table of the frame 1 near the vertical bracket 8, and the screw rod 11 of the driving motor 10 is arranged across the table of the frame 1 along the X-axis direction, and a mounting nut is provided on the screw rod 11, and the mounting nut is provided with the CCD phase-taking mechanism 7 and the steel mesh cleaning mechanism 9. The CCD phase-taking mechanism 7 and the steel mesh cleaning mechanism 9 are higher than the positioning suction cavity platform mechanism 3 and the tape conveying mechanism 4. The CCD phase-taking mechanism 7 and the steel mesh cleaning mechanism 9 move back and forth under the drive of the driving motor 10.

[0053] like Figure 7As shown, the CCD imaging mechanism 7 includes a CCD mounting bracket 70, a CCD driving motor 71 is provided in the CCD mounting bracket 70, the output shaft of the CCD driving motor 71 is fixedly connected to the CCD camera 72, the CCD driving motor 71 drives the CCD camera 72 to move along the Y-axis direction, and a calculation module is provided in the CCD camera 72. The calculation module calculates the compensation distance according to the acquired image position and the preset image position in the control system and returns a digital signal to the control system, and the control system controls the tape conveying mechanism 4 to adjust the position of the target tape.

[0054] Specifically, the drive motor 10 drives the mounting nut on the screw rod 11 to move back and forth in the X-axis direction, and at the same time drives the CCD photographing mechanism 7 and the steel mesh cleaning mechanism 9 set on the mounting nut to move back and forth. The CCD camera 72 in the CCD photographing mechanism 7 takes photos back and forth to obtain the marking point, so that the vacant position of the steel mesh and the pad on the target tape are aligned. In addition, a calculation module is provided in the CCD camera 72. The calculation module calculates the compensation distance based on the acquired image position and the preset image position in the control system and returns a digital signal to the control system. The control system controls the tape conveying mechanism 4 to adjust the position of the target tape. Each time the target tape is pulled, compensation is performed, so that the pad on the target tape can always be aligned with the pad vacant position of the steel mesh, reducing errors and improving work efficiency.

[0055] In addition, if Figure 8 As shown, the steel mesh cleaning mechanism 9 is also provided on the mounting nut and moves together with the CCD photographing mechanism 7. The steel mesh cleaning mechanism 9 includes a cleaning paper device 90. The cleaning paper device 90 includes a paper receiving motor 91. The output shaft of the paper receiving motor 91 is fixedly connected to a paper receiving reel 92. Cleaning paper 93 is wound on the paper receiving reel 92. A cleaning paper placement rack 94 for placing clean cleaning paper is placed beside the cleaning paper device 90. The paper receiving motor 91 drives the paper receiving reel 92 to rotate. The rotation of the paper receiving reel 92 causes the clean cleaning paper 93 to be rolled onto the paper receiving reel 92.

[0056] At the same time, a wiping plate device 95 is provided between the cleaning paper device 90 and the cleaning paper placement rack 94. The wiping plate device 95 includes wiping plate lifting cylinders 950 on both sides and wiping plates 951 fixedly connected to the piston rods of the lifting cylinders 950. The lifting cylinders 950 lift the wiping plates 951. After the solder paste is applied, the steel mesh cleaning mechanism 9 comes to the bottom of the steel mesh under the drive of the driving motor 10. The lifting cylinder lifts the wiping plates 951 along the X-axis direction to scrape off the solder paste on the bottom plate of the steel mesh. At the same time, the cleaning paper 93 wipes the steel mesh to clean the bottom plate of the steel mesh to ensure the cleanliness of the bottom plate of the steel mesh and improve the printing quality.

[0057] To sum up: An embodiment of the present invention provides a fully automatic solder paste printer for flexible circuit tapes, which conveys the flexible tape to the positioning suction cavity platform mechanism area through a tape conveying mechanism, adsorbs and positions it, and then the CCD photographing mechanism moves to the top of the positioning suction cavity platform mechanism to take the phase. Afterwards, the control system controls the adjustment support adjustment platform to move toward the X-axis or Y-axis to adjust the position of the positioning suction cavity platform mechanism to ensure that the solder pad position of the steel mesh and the solder point of the flexible tape correspond one to one. Then, the scraper printing mechanism and the steel mesh loading mechanism for fixing the steel mesh bring the steel mesh down to the preset printing position, and the scraper then performs the solder paste scraping action to achieve batch, accurate and rapid solder paste application on the flexible circuit board tape, thereby improving production efficiency and printing quality.

[0058] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic solder paste printer for flexible circuit tape, characterized in that: The invention comprises a frame (1), wherein the frame (1) is provided with a support adjustment platform (2), the support adjustment platform (2) is provided with a positioning suction cavity platform mechanism (3) for adsorbing a target tape, a tape conveying mechanism (4) is provided on both sides of the positioning suction cavity platform mechanism (3), the tape conveying mechanism (4) is used for loading and unloading the target tape, a scraper printing mechanism (5) and a steel mesh loading mechanism (6) for fixing a steel mesh are provided above the positioning suction cavity platform mechanism (3), and a CCD photographing mechanism (7) is further provided on the frame (1), the CCD photographing mechanism (7) is higher than the positioning suction cavity platform mechanism (3), and the moving track of the CCD photographing mechanism (7) crosses above the positioning suction cavity platform mechanism (3); A control system, wherein after receiving the instruction sent by the CCD imaging mechanism (7), the control system controls the adjustment of the support adjustment platform (2) and controls the stencil loading mechanism (6) to descend to a preset position, and then controls the scraper to perform a solder paste scraping operation; The frame (1) is further provided with a vertical bracket (8), the vertical bracket (8) is provided with a vertical motor, the nut on the screw rod of the vertical motor is fixedly connected to the vertical plate (80), the vertical plate (80) is provided with the scraper printing mechanism (5) and the steel mesh loading mechanism (6), the vertical plate (80) is embedded with a pulley assembly (81), and a horizontal slide rail (82) is respectively provided on the vertical plate (80) on the upper and lower sides of the pulley assembly (81), and the scraper printing mechanism (5) is respectively fixedly connected to the belt of the pulley assembly (81) and slidably connected to the two horizontal slide rails (82); The scraper printing mechanism (5) comprises a scraper support (50), a scraper lifting motor (51) is provided in the scraper support (50), and the output shaft of the scraper lifting motor (51) is fixedly connected to the scraper (52); The steel mesh loading mechanism (6) includes two steel mesh mounting arms (60), the two steel mesh mounting arms (60) are respectively arranged on both sides of the scraper printing mechanism (5), a plurality of locking cylinders (61) for locking the steel mesh are provided on the inner side of the steel mesh mounting arms (60), a steel mesh supporting plate (62) is fixed on the inner side of the steel mesh mounting arms (60), the steel mesh supporting plate (62) is located below the locking cylinders (61), and the locking cylinders (61) lock the steel mesh on the steel mesh supporting plate (62); The steel mesh loading mechanism (6) is equipped with a steel mesh, the position of the steel mesh is fixed, and the area of the steel mesh is larger than the area of the positioning suction cavity platform mechanism (3). By adjusting the positioning suction cavity platform mechanism (3), the space of the steel mesh and the position of the pad on the target roll are adjusted to correspond one to one.

2. The fully automatic solder paste printer for flexible circuit tape according to claim 1, characterized in that: The support adjustment platform (2) includes a support plate (20) and a mounting base plate (21), wherein the short side of the support plate (20) is fixedly connected to the output shaft of the X-axis motor (22), and the long side of the support plate (20) is fixedly connected to the output shafts of several Y-axis motors (23), and the X-axis motor (22) and the Y-axis motor (23) are used to push the support plate (20) to adjust in the X and Y directions, and the two sides of the short side of the mounting base plate (21) are respectively slidably connected to several vertical guide rails (24).

3. The fully automatic solder paste printer for flexible circuit tape according to claim 1, characterized in that: The positioning suction cavity platform mechanism (3) comprises a suction cavity platform (30) and a guide rail width adjustment device (31), wherein a plurality of suction holes (301) are evenly arranged on the suction cavity platform (30), and the top surface of the suction cavity platform (30) comprises a plane (302) and inclined surfaces (303) arranged on both sides of the plane (302), wherein the inclined surfaces (303) are arranged at a certain slope, and the bottom of the suction cavity platform (30) is connected to a vacuum generator; the guide rail width adjustment device (31) comprises two groups of adjustment guide rails (310) arranged on both sides of the suction cavity platform (30), and two groups of guide rail width adjustment screw rods (311) passing through the two adjustment guide rails (310), and an adsorption guide wheel (32) is further provided between the two groups of adjustment guide rails (310).

4. The fully automatic solder paste printer for flexible circuit tape according to claim 1, characterized in that: The tape conveying mechanism (4) includes a feeding table (40), a tape feeding motor (41) is provided on the feeding table (40), and two slide rails (42) are provided on the inner side of the tape feeding motor (41); one side of the screw nut (43) of the tape feeding motor (41) is fixedly connected to the clamping cylinder group (44), and the clamping cylinder group (44) includes two clamping claw cylinders (440) symmetrically arranged on a connecting plate (441), and a transverse guide rail (442) is provided on the connecting plate (441). The bottom of the clamping cylinder (440) is fixedly connected to a mounting plate (443), and the bottom of the mounting plate (443) is slidably connected to the transverse guide rail (442). A feed width adjustment screw rod (444) for adjusting the feed width is also installed on the mounting plate (443). The two ends of the bottom of the connecting plate (441) are slidably connected to the slide rail (42) through a slider (45). The two clamping cylinders (440) respectively clamp one side edge of the target tape to pull the target tape to move.

5. The fully automatic solder paste printer for flexible circuit tape according to claim 4, characterized in that: The tape conveying mechanism (4) also includes a tape limiting guide wheel (46) and a tape support plate (47) provided at the loading port, one end of the tape support plate (47) is fixed to the inner side of the tape limiting guide wheel (46), and the other end of the tape support plate (47) spans the feeding width adjustment screw rod (444) and is fixed on the feeding platform (40).

6. The fully automatic solder paste printer for flexible circuit tape according to claim 1, characterized in that: A driving motor (10) is provided on the table of the frame (1) near the vertical bracket (8), and a screw rod (11) of the driving motor (10) is arranged across the table of the frame (1) along the X-axis direction. A mounting nut is provided on the screw rod (11), and the CCD phase-taking mechanism (7) and the steel mesh cleaning mechanism (9) are provided on the mounting nut. The CCD phase-taking mechanism (7) and the steel mesh cleaning mechanism (9) are higher than the positioning suction cavity platform mechanism (3) and the tape conveying mechanism (4). The CCD phase-taking mechanism (7) and the steel mesh cleaning mechanism (9) move back and forth under the drive of the driving motor (10).

7. The fully automatic solder paste printer for flexible circuit tape according to claim 6, characterized in that: The CCD image-taking mechanism (7) includes a CCD mounting bracket (70), a CCD drive motor (71) is provided in the CCD mounting bracket (70), an output shaft of the CCD drive motor (71) is fixedly connected to a CCD camera (72), and the CCD drive motor (71) drives the CCD camera (72) to move along the Y-axis direction; a calculation module is provided in the CCD camera (72), and the calculation module calculates a compensation distance based on the acquired image position and the preset image position in the control system and returns a digital signal to the control system, and the control system controls the tape conveying mechanism (4) to adjust the position of the target tape.

8. The fully automatic solder paste printer for flexible circuit tape according to claim 6, characterized in that: The steel mesh cleaning mechanism (9) includes a cleaning paper device (90), the cleaning paper device (90) includes a paper receiving motor (91), the output shaft of the paper receiving motor (91) is fixedly connected to a paper receiving reel (92), cleaning paper (93) is wound on the paper receiving reel (92), and a cleaning paper placement rack (94) for placing clean cleaning paper is placed next to the cleaning paper device (90); a wiping plate device (95) is provided between the cleaning paper device (90) and the cleaning paper placement rack (94), and the wiping plate device (95) includes wiping plate lifting cylinders (950) on both sides and wiping plates (951) fixedly connected to the piston rods of the lifting cylinders (950).

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