Thick film printing machine

Abstract

The utility model discloses a thick film printing machine which comprises a lifting assembly, a screen frame assembly, a scraper assembly, a printing assembly and a CCD translation assembly. One side of the screen frame assembly is connected with a lifting assembly, and the lifting assembly is used for controlling lifting of the screen frame assembly; the other side of the screen frame assembly is connected with a scraper assembly, the scraper assembly is used for arranging the printing assembly at the bottom of the screen frame assembly, and the CCD translation assembly is arranged between the screen frame assembly and the printing assembly; the CCD translation assembly comprises a CCD image capturing module, a Y-axis translation module and an X-axis translation module; the CCD image capturing module is connected to the Y-axis translation module, and the CCD image capturing module can move back and forth on the Y-axis translation module; the Y-axis translation module is arranged on the X-axis translation module, and the Y-axis translation module can move back and forth on the X-axis translation module. The printing machine has the advantages that the printing machine can find and adjust the most appropriate printing position through the CCD image capturing module.

Description

Technical Field

[0001] The utility model relates to the field of printing machines, in particular to a thick film printing machine. Background Art

[0002] Screen printing is a type of stencil printing that, together with flat printing, letterpress printing and gravure printing, is known as one of the four major printing methods. The basic principle of screen printing is to use the basic principle that the slurry is permeable to the mesh holes of the graphic part of the screen printing plate, while the slurry is not permeable to the mesh holes of the non-graphic part. When printing, pour the slurry on one end of the screen printing plate, and use a scraper to apply a certain pressure on the slurry part of the screen printing plate while moving toward the other end of the screen printing plate. During the movement, the slurry is squeezed from the mesh holes of the graphic part onto the substrate by the scraper. Due to the viscosity of the slurry, the print is fixed within a certain range. During the printing process, the scraper is always in line contact with the screen printing plate and the substrate, and the contact line moves with the scraper. Since a certain gap is maintained between the screen printing plate and the substrate, the screen printing plate generates a reaction force on the scraper through its own tension during printing. This reaction force is called rebound force. Due to the effect of the rebound force, the screen printing plate and the substrate are only in moving line contact, while the other parts of the screen printing plate are separated from the substrate, causing the slurry and the screen to break and move, thereby ensuring the printing size accuracy and avoiding dirtying the substrate. When the scraper is lifted after scraping across the entire layout, the screen printing plate is also lifted, and the slurry is gently scraped back to the initial position. This is one printing stroke.

[0003] In existing printing machines, manual printing and test adjustment is required to find the most suitable printing position, but manual adjustment of the position has the problem of low precision. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a thick film printer, which can find and adjust the most suitable printing position through a CCD imaging module.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a thick film printing machine, including a lifting component, a screen frame component, a scraper component, a printing component and a CCD translation component; one side of the screen frame component is connected with a lifting component, and the lifting component is used to control the lifting of the screen frame component; the other side of the screen frame component is connected with a scraper component, and the scraper component is used to set the printing component at the bottom of the screen frame component, and the CCD translation component is set between the screen frame component and the printing component; the CCD translation component includes a CCD imaging module, a Y-axis translation module and an X-axis translation module; the CCD imaging module is connected to the Y-axis translation module, and the CCD imaging module can move back and forth on the Y-axis translation module; the Y-axis translation module is set on the X-axis translation module, and the Y-axis translation module can move back and forth on the X-axis translation module.

[0006] In the above structure, the printing assembly includes a printing platform plate, a vacuum chamber, a vacuum chamber fixing plate, a UVW calibration module and a platform mounting plate; the platform mounting plate is provided with a UVW calibration module, a vacuum chamber mounting plate is provided on the UVW calibration module, a vacuum chamber mounting plate is provided on the vacuum chamber mounting plate, and a printing platform plate is provided on the vacuum chamber.

[0007] In the above structure, the scraper assembly includes a scraper mounting frame, a motor mounting plate, a scraper drive motor, a scraper hanging plate, a floating frame and a scraper; the scraper mounting frame is connected to the screen frame assembly, the scraper drive motor is installed on the motor mounting plate, the output end of the scraper drive motor passes through the motor mounting plate and is connected to the scraper hanging plate, the scraper hanging plate is connected to the floating frame, and the scraper is connected to the floating frame.

[0008] In the above structure, the scraper assembly also includes a sliding motor, a rotating rod, a connecting seat, a bearing, a slider and a slide rail; a sliding motor is arranged on one side of the scraper mounting frame, and the driving end of the sliding motor is connected to the rotating rod; a bearing is arranged on the rotating rod, the bearing is connected to the connecting seat, and the connecting seat is connected to the motor mounting plate; a slide rail is arranged at the bottom of the scraper mounting frame, and a slider is arranged on the motor mounting plate, so that the motor mounting plate can slide back and forth on the slide rail under the drive of the sliding motor.

[0009] In the above structure, the lifting assembly includes a frame, a slide rail and a slider; the frame is provided with a slide rail, and the slide rail is provided with a slider, and the screen frame assembly is lifted and lowered by the slider and the slide rail; the screw rod is connected to the frame through a screw rod nut, and the output end of the screw rod motor is connected to the screw rod.

[0010] In the above structure, the lifting assembly further includes a screw, a screw nut and a screw motor; the screw is connected to the frame via the screw nut, and the output end of the screw motor is connected to the screw.

[0011] In the above structure, the scraper drive motor and the scraper are provided in two groups.

[0012] In the above structure, the screen frame assembly includes a mounting plate and a screen frame fixing frame; two groups of screen frame fixing frames are arranged on one side of the mounting plate, and the other side of the mounting plate is connected to the slider in the lifting assembly.

[0013] In the above structure, the screen frame assembly also includes a pressure plate cylinder, a swing arm pressure plate and a positioning block; two groups of pressure plate cylinders are arranged on the outer wall of any group of screen frame fixing frames, and the output end of the pressure plate cylinder is connected to the swing arm pressure plate; a positioning block is arranged between the two groups of screen frame fixing frames, and a positioning block is also arranged between the two groups of pressure plate cylinders.

[0014] In the above structure, the screen frame assembly further comprises a nut seat; the nut seat is arranged at the bottom fixed to the mounting plate, and a hole is arranged on the nut seat, which is connected to the screw rod arranged on the lifting assembly through the hole on the nut seat.

[0015] The beneficial effect of the utility model is that the printer can find and adjust the most suitable printing position through the CCD imaging module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic structural diagram of a thick film printing machine.

[0017] Figure 2 The utility model is a schematic structural diagram of a thick film printing machine.

[0018] Figure 3 The utility model is a schematic structural diagram of a thick film printing machine.

[0019] Figure 4 The utility model is a schematic structural diagram of a thick film printing machine.

[0020] Figure 5 The utility model is a schematic structural diagram of a thick film printing machine.

[0021] Figure 6 The utility model is a schematic structural diagram of a thick film printing machine.

[0022] Figure 7 The utility model is a schematic structural diagram of a thick film printing machine.

[0023] Figure 8 The utility model is a schematic structural diagram of a thick film printing machine.

[0024] Fig. 9 The utility model is a schematic structural diagram of a thick film printing machine.

[0025] Fig.10 The utility model is a schematic structural diagram of a thick film printing machine.

[0026] Fig.11 The utility model is a schematic structural diagram of a thick film printing machine. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the utility model can be combined interchangeably without conflicting with each other.

[0029] Reference Figures 1 to 3 As shown, the utility model discloses a thick film printer, specifically, the device comprises a lifting assembly 10, a screen frame assembly 20, a scraper assembly 30, a printing assembly 40 and a CCD translation assembly 50. The lifting assembly 10 is connected to one side of the screen frame assembly 20, the scraper assembly 30 is connected to the other side of the screen frame assembly 20, the printing assembly 40 is arranged at the bottom of the screen frame assembly 20, and the CCD translation assembly 50 is arranged between the screen frame assembly 20 and the printing assembly 40.

[0030] Specifically, refer to Figure 4 The lifting assembly 10 includes a frame 101, a slide rail 102 and a slider 103. The frame 101 is provided with the slide rail 102, and the slider 103 is provided on the slide rail 102. The slider 103 can slide on the slide rail 102. The lifting assembly 10 is also provided with a screw 104, a screw nut 105 and a screw motor 106. The screw 104 is connected to the frame 101 through the screw nut 105, and the output end of the screw motor 106 is connected to the screw 104.

[0031] Reference Figures 5 and 6The screen frame assembly 20 includes a mounting plate 201, a screen frame fixing frame 202, a pressure plate cylinder 203, a swing arm pressure plate 204, a positioning block 205 and a nut seat 206. One side of the mounting plate 201 is connected to the slider 103 in the lifting assembly 10. Two groups of screen frame fixing frames 202 are arranged on the other side of the mounting plate 201. The screen frame fixing frames 202 are used to place the printing screen. Two pressure plate cylinders 203 are arranged on the outer wall of one group of screen frame fixing frames 202. The output end of the pressure plate cylinder 203 is connected to the swing arm pressure plate 204. Under the drive of the pressure plate cylinder 203, the swing arm pressure plate 204 can fix the printing screen on the screen frame fixing frame 202. A positioning block 205 is arranged between the two groups of screen frame fixing frames 202, and a positioning block 205 is also arranged between the two pressure plate cylinders 203. The positioning block 205 is used to position the printing screen. The nut seat 206 is arranged at the bottom fixed to the mounting plate 201 , and a hole is arranged on the nut seat 206 , which is connected to the screw rod arranged on the lifting assembly 10 through the hole on the nut seat.

[0032] Reference Figures 7 and 8 The scraper assembly 30 includes a scraper mounting frame 301, a motor mounting plate 302, a scraper driving motor 303, a scraper hanging plate 304, a floating frame 305, a scraper 306, a sliding motor 307, a rotating rod 308, a connecting seat 309 and a bearing 310. Specifically, the scraper mounting frame 301 is connected to the mounting plate 201; a slide rail is provided at the bottom of the scraper mounting frame 301, and the motor mounting plate 302 is connected to the slide rail through a slider; a sliding motor 307 is provided on one side of the scraper mounting frame 301, and the driving end of the sliding motor 307 is connected to the rotating rod 308, and a bearing 310 is provided on the rotating rod 308, and the bearing 310 is connected to the connecting seat 309, and the connecting seat 309 is connected to the motor mounting plate 302. The sliding motor 307 drives the rotating rod 308 to rotate, thereby driving the bearing 310 to rotate. Since the bearing 310 is connected to the connecting seat 309, the connecting seat 309 is connected to the motor mounting plate 302, and the motor mounting plate 302 is connected to the slide rail on the scraper mounting frame 301 through the slider, the motor mounting plate 302 can slide on the slide rail.

[0033] Two sets of scraper drive motors 303 are also installed on the motor mounting plate 302. The output end of the scraper drive motor 303 passes through the motor mounting plate 302 and is connected to the scraper hanging plate 304. The scraper hanging plate 304 is connected to two floating frames 305, and each of the two floating frames 305 is connected to a scraper 306. Under the action of the scraper drive motor 303, the scraper 306 can be close to or away from the printing screen. Under the action of the sliding motor 307, the scraper 306 can scrape back and forth on the surface of the printing screen to remove the product.

[0034] Reference Fig. 9The printing assembly 40 includes a printing platform plate 401, a vacuum chamber 402, a vacuum chamber fixing plate 403, a UVW calibration module 404 and a platform mounting plate 405. The platform mounting plate 405 is provided with a UVW calibration module 404, a vacuum chamber mounting plate 403 is provided on the UVW calibration module 404, a vacuum chamber 402 is provided on the vacuum chamber mounting plate 403, and a printing platform plate 401 is provided on the vacuum chamber 402. After the printing screen is provided on the screen frame fixing frames 202 on both sides of the screen frame assembly 20, the printing screen is placed on the printing platform plate 401. The model of the UVW calibration module 404 is GX2525A1.

[0035] Reference Figure 10 to Figure 11 The CCD translation assembly 50 includes a CCD imaging module 501, a Y-axis translation module 502, and an X-axis translation module 503. The CCD imaging module 501 is connected to the Y-axis translation module 502, and the CCD imaging module 501 can move back and forth on the Y-axis translation module 502; the Y-axis translation module 502 is arranged on the X-axis translation module 503, and the Y-axis translation module 502 can move back and forth on the X-axis translation module 503. Because the CCD imaging module 501, the Y-axis translation module 502, and the X-axis translation module 503 are all relatively common technologies in the art, the structures of the CCD imaging module 501, the Y-axis translation module 502, and the X-axis translation module 503 are not described in detail.

[0036] First, the actual position of the steel mesh and the product is accurately determined by the CCD imaging module 501, and then the high-precision automatic calibration UVW module 404 is used to adjust the XY direction and angle of the product through the software algorithm to achieve accurate matching of the printing position. The CCD imaging module 501 enters between the screen frame component 20 and the printing component 40 through the Y-axis translation module 502 and the X-axis translation module 503, and then the CCD imaging module 501 takes a picture upward to confirm the position and angle of the steel mesh. The CCD imaging module moves through the Y-axis translation module 502 and the X-axis translation module 503 to switch to taking a picture downward to confirm the product placement position and angle. Finally, the UVW calibration module 404 moves through the software algorithm to adjust the direction position and angle.

[0037] After the printing screen is manually placed on the screen frame assembly 20, the printing screen is pressed by the pressure plate cylinder 203, and the printing screen is automatically positioned by the screw motor 106, and then the UVW calibration module 404 automatically matches the printing screen. First, the screw motor 106 drives the screen frame assembly 20 to descend to the printing position, and then the outer set of scraper drive motors 303 drive the scraper 306 to descend, and then the sliding motor 307 drives and drives the rotating rod 308 to rotate to make the motor mounting plate 302 away from the screen frame assembly 20, and then the outer set of scraper drive motors 303 rises away from the printing screen; then the inner set of scraper drive motors 303 descends, and the sliding motor 307 drives and drives the rotating rod 308 to rotate to make the motor mounting plate 302 close to the screen frame assembly 20; finally, the two sets of scraper drive motors 303 drive the scraper 306 away from the screen and separate from the screen, and the scraper assembly 30 rises as a whole to separate the screen from the product and demould.

[0038] The pulse control is sent to the programmable drive motor through the function interface. The drive motor can control the speed of the drive motor by setting the speed (i.e. the speed of the pulse); the motor stroke is controlled by setting the number of steps per revolution of the drive motor. The thick film printing machine adopts the method of first scraping and then demoulding for demoulding.

[0039] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A thick film printing machine, characterized in that: It includes a lifting assembly, a screen frame assembly, a scraper assembly, a printing assembly and a CCD translation assembly; one side of the screen frame assembly is connected to the lifting assembly, and the lifting assembly is used to control the lifting of the screen frame assembly; the other side of the screen frame assembly is connected to the scraper assembly, and the scraper assembly is used to set the printing assembly at the bottom of the screen frame assembly, and the CCD translation assembly is set between the screen frame assembly and the printing assembly; The CCD translation assembly includes a CCD imaging module, a Y-axis translation module and an X-axis translation module; the CCD imaging module is connected to the Y-axis translation module, and the CCD imaging module can move back and forth on the Y-axis translation module; the Y-axis translation module is arranged on the X-axis translation module, and the Y-axis translation module can move back and forth on the X-axis translation module.

2. A thick film printing machine according to claim 1, characterized in that: The printing assembly includes a printing platform plate, a vacuum chamber, a vacuum chamber fixing plate, a UVW calibration module and a platform mounting plate; The platform installation plate is provided with a UVW calibration module, the UVW calibration module is provided with a vacuum chamber installation plate, the vacuum chamber installation plate is provided with a vacuum chamber, and the vacuum chamber is provided with a printing platform plate.

3. A thick film printing machine according to claim 1, characterized in that: The scraper assembly includes a scraper mounting frame, a motor mounting plate, a scraper drive motor, a scraper hanging plate, a floating frame and a scraper; the scraper mounting frame is connected to the screen frame assembly, the scraper drive motor is installed on the motor mounting plate, the output end of the scraper drive motor passes through the motor mounting plate and is connected to the scraper hanging plate, the scraper hanging plate is connected to the floating frame, and the scraper is connected to the floating frame.

4. A thick film printing machine according to claim 3, characterized in that: The scraper assembly also includes a sliding motor, a rotating rod, a connecting seat, a bearing, a sliding block and a sliding rail; A sliding motor is arranged on one side of the scraper mounting frame, and a driving end of the sliding motor is connected to a rotating rod; a bearing is arranged on the rotating rod, and the bearing is connected to a connecting seat, and the connecting seat is connected to a motor mounting plate; A slide rail is arranged at the bottom of the scraper mounting frame, and a slider is arranged on the motor mounting plate. The motor mounting plate can slide back and forth on the slide rail under the drive of the sliding motor.

5. A thick film printing machine according to claim 4, characterized in that: The lifting assembly includes a frame, a slide rail and a slider; The frame is provided with a slide rail, the slide rail is provided with a slider, and the screen frame assembly is lifted and lowered by the slider and the slide rail; The lifting assembly also includes a screw, a screw nut and a screw motor; the screw is connected to the frame through the screw nut, and the output end of the screw motor is connected to the screw.

6. A thick film printing machine according to claim 3, characterized in that: The scraper drive motor and the scraper are provided in two groups.

7. A thick film printing machine according to claim 5, characterized in that: The screen frame assembly includes a mounting plate and a screen frame fixing frame; Two groups of net frame fixing frames are arranged on one side of the installation plate, and the other side of the installation plate is connected with a sliding block in the lifting assembly.

8. A thick film printing machine according to claim 7, characterized in that: The screen frame assembly also includes a pressing plate cylinder, a swing arm pressing plate and a positioning block; Two groups of pressing plate cylinders are arranged on the outer side wall of any group of the net frame fixing frames, and the output ends of the pressing plate cylinders are connected to the swing arm pressing plates; A positioning block is arranged between the two groups of the net frame fixing frames, and a positioning block is also arranged between the two groups of the pressing plate cylinders.

9. A thick film printing machine according to claim 7, characterized in that: The screen frame assembly also includes a nut seat; The nut seat is arranged at the bottom fixed on the mounting plate, and a hole is arranged on the nut seat, and is connected with a screw rod arranged on the lifting assembly through the hole on the nut seat.

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