Silk-screen printing device for water transfer printing paper with anti-counterfeiting effect

Abstract

The utility model relates to the technical field of silk-screen printing, and discloses an anti-counterfeiting effect water transfer printing paper silk-screen printing device which comprises a printing frame and a silk screen, the silk screen is arranged in the center of the bottom of the printing frame, sliding grooves are formed in the two sides of the top end of the printing frame, a door-shaped support is arranged above the sliding grooves in a sliding mode, and a servo motor is arranged on one side of the outer wall of the door-shaped support. A servo motor is arranged on the door-shaped support, a gear is arranged at the bottom end of an output shaft of the servo motor, a rack is fixed to the portion, close to one side of the gear, of the outer wall of the sliding groove, and the rack is matched with the gear, the servo motor rotates forwards and backwards to drive the gear to rotate forwards and backwards, and the rack is matched with the gear, so that the door-shaped support slides above the sliding groove. In the whole printing process, the scraper scrapes back and forth by taking the servo motor as a power source, and the phenomenon that the printing efficiency is influenced by manual operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing, in particular to a screen printing device for water transfer printing paper with anti-counterfeiting effect. Background Technique

[0002] Screen printing, also known as screen printing technology or silk screen printing, is a printing technique that uses a screen, usually a mesh made of nylon, polyester, or stainless steel, as a template to transfer ink or other types of pigments onto a substrate. Screen printing for water transfer printing paper with anti-counterfeiting effect is a printing method specifically used to perform screen printing on water transfer printing paper to achieve an anti-counterfeiting effect. Through screen printing, inks with anti-counterfeiting characteristics, such as fluorescent ink, magnetic ink, color-changing ink, etc., are transferred onto the water transfer printing paper.

[0003] For example, the existing Chinese patent (CN209079434U) discloses a screen printing device for water transfer printing paper with anti-counterfeiting effect, including a bottom plate. A screen plate is arranged in the middle of the bottom plate. Side plates are arranged on the top of the bottom plate. A reduction motor is arranged on the top of the side plates. A screw rod is arranged on the output shaft of the reduction motor. A moving plate is arranged on the surface of the screw rod. An oil storage cavity is arranged at the bottom of the moving plate. Pressing cylinders are arranged on both sides of the oil storage cavity. A spring is arranged inside the pressing cylinder. A scraping plate is arranged at the bottom of the spring. A current-limiting cavity is arranged at the bottom of the oil storage cavity. A current-limiting plate is arranged inside the current-limiting cavity. A printing cavity is arranged at the bottom of the current-limiting cavity. A fixing rod is arranged at the bottom of the moving plate. A roller is arranged at the bottom of the fixing rod. A cotton cloth is arranged on the surface of the roller. Through the arrangement of the current-limiting plate, the moving plate and the printing cavity, the ink inside the printing cavity is evenly covered on the gaps of the screen plate, and it can avoid unclear printing caused by insufficient ink.

[0004] In the above-mentioned prior art, when the ink is scraped from one side to the other side by a squeegee, the ink will pass through the unblocked area and adhere to the water transfer printing paper. However, the movement of the moving plate and the squeegee in the prior art is generally manual operation, and the efficiency of manual operation is relatively low during batch printing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a screen printing device for water transfer printing paper with anti-counterfeiting effect to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An anti-counterfeiting effect water transfer printing paper screen printing device, comprising: a printing frame and a screen. A screen is provided at the center of the bottom of the printing frame. Chutes are provided on both sides of the top of the printing frame. A gantry bracket is slidably provided above the chutes. A servo motor is provided on one side of the outer wall of the gantry bracket. A gear is provided at the bottom end of the output shaft of the servo motor. A rack is fixed to the outer wall of the chute close to the gear. The rack is engaged with the gear. Guide rods are provided on both sides inside the gantry bracket. A connecting seat is provided at the bottom end of the guide rod. A squeegee is provided at the bottom end of the connecting seat. Springs are provided outside the guide rods. The bottom end of the spring is connected to the connecting seat, and the top end of the spring is connected to the gantry bracket.

[0007] Further, a top plate is provided at the top end of the guide rod. A fixing screw is provided at the center of the top of the gantry bracket. A nut is provided outside the fixing screw. The bottom end of the nut abuts against the top surface of the top plate.

[0008] Further, the spring can apply a downward pressure to the connecting seat through its elastic force.

[0009] Further, a motor bracket is provided on one side of the gantry bracket. The servo motor is fixed to the gantry bracket through the motor bracket.

[0010] Further, rollers are provided at the bottom ends of both sides of the gantry bracket. The rollers can slide in the chutes.

[0011] Further, limit plates are provided at both ends of the chute. The limit plates are used to prevent the rollers from disengaging from the chute.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] In the present utility model, through the provided rack, gear and squeegee, when the anti-counterfeiting effect water transfer printing paper screen printing device is used, anti-counterfeiting ink is introduced into the printing frame. The water transfer printing paper is placed under the screen of the printing frame. During screen printing, through the forward and reverse rotation of the servo motor, the gear is driven to rotate forward and backward. Through the cooperation of the rack and the gear, the gantry bracket slides above the chute, thereby driving the squeegee to scrape back and forth in the printing frame, transferring the ink with anti-counterfeiting characteristics to the water transfer printing paper. During the entire printing process, the squeegee scrapes back and forth with the servo motor as the power source, avoiding the influence of manual operation on the printing efficiency;

[0014] In addition, during the printing process, the pressure of the squeegee on the screen is adjustable. By rotating the nut, the top plate rises or falls relative to the gantry bracket, thereby driving the guide rods on both sides of the top plate to rise or fall, thereby driving the squeegee to rise or fall, thereby realizing the adjustment of the scraping pressure of the squeegee and ensuring the quality of screen printing.

[0015] The parts not involved in this device are the same as those in the prior art or can be implemented using the prior art. Brief Description of the Drawings

[0016] Figure 1 It is a perspective view of a screen printing device for water transfer printing paper with anti-counterfeiting effect of the present utility model;

[0017] Figure 2 It is a top view of a screen printing device for water transfer printing paper with anti-counterfeiting effect of the present utility model;

[0018] Figure 3 It is a right sectional view of a screen printing device for water transfer printing paper with anti-counterfeiting effect of the present utility model;

[0019] Figure 4 It is a left view of a screen printing device for water transfer printing paper with anti-counterfeiting effect of the present utility model.

[0020] In the figure: 1, printing frame; 2, screen; 3, sliding groove; 4, portal bracket; 5, rack; 6, servo motor; 7, gear; 8, top plate; 9, fixing screw; 10, nut; 11, guide rod; 12, connecting seat; 13, squeegee; 14, spring; 15, roller. Detailed Description of the Preferred Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a screen printing device for water transfer printing paper with anti-counterfeiting effect, including: a printing frame 1 and a screen 2. The screen 2 is provided at the center of the bottom of the printing frame 1. Sliding grooves 3 are provided on both sides of the top of the printing frame 1. A portal bracket 4 is slidably provided above the sliding grooves 3. A servo motor 6 is provided on one side of the outer wall of the portal bracket 4. A gear 7 is provided at the bottom end of the output shaft of the servo motor 6. A rack 5 is fixed to the outer wall of the sliding groove 3 near the gear 7. The rack 5 cooperates with the gear 7. Guide rods 11 are provided on both sides inside the portal bracket 4. A connecting seat 12 is provided at the bottom end of the guide rod 11. A squeegee 13 is provided at the bottom end of the connecting seat 12. During screen printing, by the forward and reverse rotation of the servo motor 6, the gear 7 is driven to rotate forward and backward. Through the cooperation of the rack 5 and the gear 7, the portal bracket 4 slides above the sliding groove 3, thereby driving the squeegee 13 to scrape back and forth in the printing frame 1, and transferring the ink with anti-counterfeiting characteristics to the water transfer printing paper. During the entire printing process, the squeegee 13 scrapes back and forth with the servo motor 6 as the power source, avoiding the influence of manual operation on the printing efficiency.

[0023] At the top of the guiding rod 11, there is a top plate 8. At the center of the top of the portal frame support 4, there is a fixing screw rod 9. Outside the fixing screw rod 9, there is a nut 10. The bottom end of the nut 10 abuts against the top surface of the top plate 8. During the printing process, the pressure of the squeegee 13 on the screen 2 is adjustable. By rotating the nut 10, the top plate 8 rises or falls relative to the portal frame support 4, thereby driving the guiding rods 11 on both sides of the top plate 8 to rise or fall, thereby driving the squeegee 13 to rise or fall, so as to realize the adjustment of the scraping pressure of the squeegee 13 and ensure the quality of screen printing.

[0024] Outside the guiding rod 11, there is a spring 14. The bottom end of the spring 14 is connected to the connecting seat 12, and the top end of the spring 14 is connected to the portal frame support 4. The spring 14 can apply a downward pressure to the connecting seat 12 through the elastic force. The spring 14 is always in a compressed state during the printing process. In this way, the spring 14 will apply forces to both ends, making the top plate 8 and the nut 10 tightly abut, so as to prevent the nut 10 from loosening during the printing process.

[0025] On one side of the portal frame support 4, there is a motor support. The servo motor 6 is fixed on the portal frame support 4 through the motor support to ensure the stable connection of the servo motor 6. At the bottom ends of both sides of the portal frame support 4, there are rollers 15. The rollers 15 can slide in the chute 3. Limit plates are provided at both ends of the chute 3, and the limit plates are used to prevent the rollers 15 from detaching from the chute 3. By the forward and reverse rotation of the servo motor 6, the gear 7 is driven to rotate forward and reverse. Through the cooperation of the rack 5 and the gear 7, the portal frame support 4 slides above the chute 3, thereby driving the squeegee 13 to scrape back and forth in the printing frame 1, and transferring the ink with anti-counterfeiting characteristics to the water transfer printing paper.

[0026] When the screen printing device for anti-counterfeiting effect water transfer printing paper is in use, the anti-counterfeiting ink is introduced into the printing frame 1, and the water transfer printing paper is placed under the screen 2 of the printing frame 1. During screen printing, by the forward and reverse rotation of the servo motor 6, the gear 7 is driven to rotate forward and reverse. Through the cooperation of the rack 5 and the gear 7, the portal frame support 4 slides above the chute 3, thereby driving the squeegee 13 to scrape back and forth in the printing frame 1, and transferring the ink with anti-counterfeiting characteristics to the water transfer printing paper. During the whole printing process, the squeegee 13 scrapes back and forth with the servo motor 6 as the power source, avoiding the influence of manual operation on the printing efficiency;

[0027] In addition, during the printing process, the pressure of the squeegee 13 on the screen 2 is adjustable. By rotating the nut 10, the top plate 8 rises or falls relative to the portal frame support 4, thereby driving the guiding rods 11 on both sides of the top plate 8 to rise or fall, thereby driving the squeegee 13 to rise or fall, so as to realize the adjustment of the scraping pressure of the squeegee 13 and ensure the quality of screen printing.

[0028] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

Claims

1. An anti-counterfeiting effect water transfer printing paper screen printing device, comprising: A printing frame (1) and a screen (2), characterized in that: a screen (2) is provided at the center of the bottom of the printing frame (1), slide grooves (3) are provided on both sides of the top of the printing frame (1), a door-shaped bracket (4) is slidably provided above the slide groove (3), a servo motor (6) is provided on one side of the outer wall of the door-shaped bracket (4), a gear (7) is provided at the bottom end of the output shaft of the servo motor (6), a rack (5) is fixed on the outer wall of the slide groove (3) close to the gear (7), the rack (5) cooperates with the gear (7), guide rods (11) are provided on both sides of the inside of the door-shaped bracket (4), a connecting seat (12) is provided at the bottom end of the guide rod (11), a scraper (13) is provided at the bottom end of the connecting seat (12), a spring (14) is provided on the outside of the guide rod (11), the bottom end of the spring (14) is connected to the connecting seat (12), and the top end of the spring (14) is connected to the door-shaped bracket (4).

2. The silk screen printing device for anti-counterfeiting water transfer printing paper according to claim 1, characterized in that: A top plate (8) is provided at the top of the guide rod (11), a fixing screw (9) is provided at the center of the top of the door-shaped bracket (4), a nut (10) is provided on the outside of the fixing screw (9), and the bottom end of the nut (10) is in contact with the top surface of the top plate (8).

3. The silk screen printing device for anti-counterfeiting effect water transfer printing paper according to claim 1, characterized in that: The spring (14) can exert downward pressure on the connecting seat (12) through elastic force.

4. A silk screen printing device for anti-counterfeiting effect water transfer printing paper according to claim 1, characterized in that: A motor bracket is provided on one side of the door-shaped bracket (4), and the servo motor (6) is fixed on the door-shaped bracket (4) via the motor bracket.

5. A silk screen printing device for anti-counterfeiting effect water transfer printing paper according to claim 1, characterized in that: Rollers (15) are provided at the bottom ends of both sides of the door-shaped bracket (4), and the rollers (15) are capable of sliding in the slide groove (3).

6. The screen printing device for anti-counterfeiting effect water transfer printing paper according to claim 5, characterized in that: Limiting plates are provided at both ends of the slide groove (3), and the limiting plates are used to prevent the roller (15) from escaping from the slide groove (3).

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