Screen printing machine

Abstract

The invention discloses a screen printing machine, and relates to the technical field of screen printing. A support is connected to the rack, and a printing plate is connected to the support. A printing table is connected to the rack. A motor provides a power source, a screw rod is rotationally driven, a nut is slidably connected to the screw rod, along with linear movement of the screw rod, the nut moves along the screw rod, a sliding rod is connected to the nut, along with movement of the nut, the sliding rod correspondingly moves, and a jacking block is connected to the end, away from the nut, of the sliding rod and matched with a sliding groove in the back face of a printing table. The printing table is pushed to move up and down, vertical adjustment of the printing table is achieved, the first sliding block connected with the other end of the sliding rod slides on the first sliding rod, horizontal stability and accurate positioning of the printing table are guaranteed, and the printing table can reach the appropriate position through accurate control of the adjusting mechanism so as to adapt to printing stocks of different thicknesses and shapes.

Description

Technical Field

[0001] The invention relates to the technical field of screen printing, and in particular to a screen printing machine. Background Art

[0002] Silk screen printing machine, full name is screen printer, is a kind of equipment used for screen printing. Screen printing is a printing technology that uses silk screen as a base to transfer printing materials such as ink to the substrate through a certain pressure. It is used for the production of billboards, banners, posters, etc., for marking and decoration of electronic products such as circuit boards, mobile phone cases, and laptop cases, for pattern and text printing of ceramic and glass products, and for printing of automotive interior and exterior trims such as dashboards, door panels, and car logos. Silk screen printing can produce very bright and lasting colors. Compared with other printing technologies, silk screen printing is simple to operate and easy to master. For small batch production, silk screen printing has a lower cost;

[0003] The Chinese patent authorization announcement number is CN111959096B, and the name is a screen printing machine, including a machine body, a workbench and a scraping device are arranged on the machine body, and a positioning device, an adjustment device and a supporting device are installed on the workbench. The positioning device includes a square positioning frame, and the positioning frame includes two fixed rods, two sliding rods and a connecting block; the adjustment device can adjust the position of the fixed rod and the sliding rod, and fix the fixed rod and the sliding rod at the required position, and the supporting device is embedded in the positioning frame and is used to support the substrate so that the top surface height of the substrate is not lower than the top surface height of the positioning frame. This application has the effect of being able to position the glass plate more quickly, so that the position of the silk-screened pattern is accurate;

[0004] The shortcomings of the above scheme are: although the above scheme can make the printed pattern position accurate, the angle and height of the printing table cannot be adjusted during use, and it can only adapt to substrates of specific sizes and shapes. For substrates of different sizes or shapes, effective printing may not be possible, resulting in misalignment, ghosting or unevenness of the printed pattern, and different printed materials cannot be limited during use. Without a limiting device, the substrate may move or shift during the printing process, resulting in inaccurate position of the printed pattern, affecting the overall appearance and consistency of the product. Summary of the invention

[0005] The purpose of the present invention is to provide a screen printing machine to solve the technical problems in the prior art that the angle and height of the printing table cannot be adjusted, and can only adapt to substrates of specific sizes and shapes. For substrates of different sizes or shapes, effective printing may not be possible, and different printed materials cannot be limited when in use. Without a limiting device, the substrate may move or shift during the printing process, resulting in inaccurate position of the printed pattern, affecting the overall appearance and consistency of the product.

[0006] The technical problem to be solved by the present invention can be achieved by the following technical solutions:

[0007] A screen printing machine comprises a frame;

[0008] The frame is connected with a bracket, and the bracket is connected with a printed board;

[0009] The frame is connected with a printing table, a rotating shaft is connected between the printing table and the frame, an adjusting mechanism is arranged inside the frame, the adjusting mechanism comprises a screw rod and a sliding rod, a supporting frame is arranged inside the frame, the screw rod is connected to one end of the supporting frame away from the frame, the end of the screw rod away from the supporting frame is connected to a motor, the frame is connected to an installation box, the motor is arranged inside the installation box, a nut is slidably connected to the screw rod, the sliding rod is connected to the nut, the end of the sliding rod away from the nut is connected to a lifting block, a sliding groove is arranged on the back side of the printing table, the sliding groove is matched with the lifting block, the end of the sliding rod away from the nut is connected to a sliding block 1, the frame is connected to a connecting block 1, the end of the connecting block 1 away from the frame is connected to two sliding rods 1, and the sliding block 1 is slidably connected between the two sliding rods 1;

[0010] The printing table is provided with a limiting mechanism, which is symmetrically arranged. The limiting mechanism includes two positioning rods and two sliding rods 2. The two positioning rods and the two sliding rods 2 are all connected to the printing table. The sliding rod 2 is arranged on one side of the positioning rod. A sliding mechanism is connected between the sliding rod 2 and the positioning rod; and a clamping mechanism is connected to the sliding mechanism.

[0011] As a further solution of the present invention: the lifting block is made of aluminum alloy material.

[0012] As a further solution of the present invention: the slider 1 is an I-shaped structure.

[0013] As a further solution of the present invention: the two ends of the sliding rod are connected to limiting heads.

[0014] As a further solution of the present invention: the sliding mechanism includes a slider 2 and a slider 3, the slider 2 is slidably connected to the slider 2, the slider 3 is slidably connected to the positioning rod, and a connecting block 2 is connected between the slider 2 and the slider 3.

[0015] As a further solution of the present invention: a plurality of positioning holes are provided on the positioning rod, positioning bolts are connected between the slider three and the positioning holes, and the positioning bolts are arranged in coordination with the positioning holes.

[0016] As a further solution of the present invention: the clamping mechanism includes two limit frames, both of which are connected to the slider 2, the limit frames are connected to a screw rod, and the end of the screw rod is connected to a positioning head.

[0017] As a further solution of the present invention: an anti-slip protrusion is connected to the positioning head.

[0018] As a further solution of the present invention: one end of the screw rod away from the positioning head is connected to a rotating handle.

[0019] As a further solution of the present invention: an air outlet plate is connected to the side of the printing table, and a plurality of air outlets are provided on the air outlet plate.

[0020] Beneficial effects of the present invention:

[0021] 1. The motor of the present invention provides a power source, which drives the lead screw by rotation. The nut is slidably connected to the lead screw. As the lead screw moves linearly, the nut moves along the lead screw. The sliding rod is connected to the nut. As the nut moves, the sliding rod also moves accordingly. The lifting block is connected to the end of the sliding rod away from the nut, and cooperates with the slide groove on the back of the printing table to push the printing table to move up and down, thereby realizing the vertical adjustment of the printing table. The slider connected to the other end of the sliding rod slides on the sliding rod to ensure the horizontal stability and precise positioning of the printing table. Through the precise control of the adjustment mechanism, the printing table can reach a suitable position to adapt to substrates of different thicknesses and shapes.

[0022] 2. Slider 2 of the present invention slides on slide rod 2 to achieve fine adjustment in the horizontal direction. At the same time, slider 3 slides on the positioning rod. Connecting block 2 connects slider 2 and slider 3 to provide structural stability. Positioning holes are provided on the positioning rod to cooperate with slider 3 to achieve precise positioning through positioning bolts. The clamping mechanism is used to fix the substrate to prevent it from moving during the printing process. The limit frame is connected to slider 2 to provide clamping support. The screw is connected to the limit frame. The clamping force is adjusted by rotating the screw. The positioning head contacts the substrate to achieve clamping. Anti-slip protrusions are provided on the positioning head to increase friction and prevent the substrate from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the regulating mechanism in the present invention;

[0026] Figure 3 It is a structural schematic diagram of a slider in the present invention;

[0027] Figure 4It is a schematic diagram of the back structure of the printing table in the present invention;

[0028] Figure 5 It is a schematic diagram of the front structure of the printing table in the present invention;

[0029] Figure 6 yes Figure 5 Enlarged structural diagram at A in the middle.

[0030] In the figure: 1. frame; 2. support frame; 3. installation box; 4. rotating shaft; 5. printing table; 6. motor; 7. screw; 8. nut; 9. sliding rod; 10. sliding rod one; 11. connecting block one; 12. sliding block one; 13. lifting block; 14. slide groove; 16. air outlet plate; 17. positioning rod; 18. sliding rod two; 19. limiting head; 20. limiting frame; 21. positioning head; 22. screw; 23. sliding block two; 24. positioning hole; 25. sliding block three; 26. connecting block two; 27. positioning bolt; 28. bracket; 29. ​​printing plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 6 As shown, a screen printing machine comprises a frame 1, a bracket 28 is connected to the frame 1, and a printing plate 29 is connected to the bracket 28;

[0033] The frame 1 is connected with a printing table 5, a rotating shaft 4 is connected between the printing table 5 and the frame 1, an adjusting mechanism is arranged inside the frame 1, the adjusting mechanism comprises a screw rod 7 and a sliding rod 9, a support frame 2 is arranged inside the frame 1, the screw rod 7 is connected to the end of the support frame 2 away from the frame 1, a motor 6 is connected to the end of the screw rod 7 away from the support frame 2, an installation box 3 is connected inside the frame 1, the motor 6 is arranged inside the installation box 3, a nut 8 is slidably connected to the screw rod 7, and the sliding rod 9 is connected to the nut 8, the end of the sliding rod 9 away from the nut 8 is connected to a lifting block 13, the lifting block 13 is made of aluminum alloy material, a slide groove 14 is provided on the back of the printing table 5, the slide groove 14 is arranged in cooperation with the lifting block 13, the end of the sliding rod 9 away from the nut 8 is connected to a slider 12, the frame 1 is internally connected with a connecting block 11, the end of the connecting block 11 away from the frame 1 is connected to two sliding rods 10, the slider 12 is slidably connected between the two sliding rods 10, and the slider 12 is an I-shaped structure;

[0034] The printing table 5 is provided with a limiting mechanism, which is symmetrically arranged. The limiting mechanism includes two positioning rods 17 and two sliding rods 18. The two positioning rods 17 and the two sliding rods 18 are all connected to the printing table 5. The sliding rod 18 is arranged on one side of the positioning rod 17. The end of the sliding rod 18 is connected to a limiting head 19. A sliding mechanism is connected between the sliding rod 18 and the positioning rod 17. The sliding mechanism includes a slider 23 and a slider 3 25. The slider 23 is slidably connected to the slider 2 18. The slider 3 25 is slidably connected to the positioning rod 17. A connecting block 26 is connected between the slider 23 and the slider 3 25. A plurality of positioning holes 24 are provided on the positioning rod 17. A positioning bolt 27 is connected between the slider 3 25 and the positioning hole 24. The positioning bolt 27 is arranged in coordination with the positioning hole 24.

[0035] The sliding mechanism is connected to a clamping mechanism, which includes two limit frames 20, both of which are connected to a second slider 23, a screw 22 is connected to the limit frame 20, a positioning head 21 is connected to the end of the screw 22, an anti-slip protrusion is connected to the positioning head 21, and a rotating handle is connected to the end of the screw 22 away from the positioning head 21;

[0036] The side of the printing table 5 is connected to an air outlet plate 16 , and the air outlet plate 16 is provided with a plurality of air outlets.

[0037] Working principle of the present invention: printing plate 29 is installed on bracket 28 for printing patterns, printing table 5 is connected to frame 1 by rotating shaft 4, printing table 5 is adjusted or rotated at a certain angle to meet different printing requirements, adjustment mechanism is used to adjust the position of printing table 5, screw rod 7 is connected to one end of support frame 2, and motor 6 is connected to the other end, rotation of motor drives linear motion of screw rod 7, motor 6 is arranged inside mounting box 3, provides power source, drives screw rod 7 by rotation, nut 8 is slidably connected to screw rod 7, with linear motion of screw rod 7, nut 8 moves along screw rod 7, sliding rod 9 is connected to nut 8, with movement of nut 8, sliding rod 9 also moves accordingly, lifting block 13 is connected to the end of sliding rod 9 away from nut 8, cooperates with slide groove 14 on the back of printing table 5, pushes printing table 5 to move up and down, slider 12 is connected to sliding rod The other end of 9 is an I-shaped structure, which provides stable sliding and bearing capacity. The slide bar 10 is connected to the connecting block 11 and is slidably connected with the slider 12 to form a stable sliding structure. When the motor 6 is started, it drives the screw rod 7 to rotate. The linear motion of the screw rod 7 is transmitted to the slide bar 9 through the nut 8. The movement of the slide bar 9 drives the lifting block 13, and then pushes the printing table 5 to move up and down in the slide groove 14 to achieve vertical adjustment of the printing table. The slider 12 connected to the other end of the slide bar 9 slides on the slide bar 10 to ensure the horizontal stability and precise positioning of the printing table 5. Through the precise control of the adjustment mechanism, the printing table 5 can reach a suitable position to adapt to substrates of different thicknesses and shapes and achieve high-quality screen printing. This design allows the screen printer to make fine adjustments to the printing table during the printing process to adapt to different printing tasks and improve the printing accuracy and efficiency.

[0038] The printing table 5 is a platform for the screen printing machine to perform printing operations and is used to place the printing material. The limiting mechanism is symmetrically arranged to ensure the stability and accuracy of the printing table 5 during the printing process. The positioning rod 17 provides vertical positioning and support. The second slide bar 18 cooperates with the positioning rod 17 to allow horizontal movement and positioning. The positioning head 19 is arranged at the end of the second slide bar 18 to limit the movement range of the second slide bar 18. The sliding mechanism is composed of a second slide bar 23 and a third slide bar 25 to achieve precise positioning and adjustment. The second slide bar 23 slides on the second slide bar 18 to achieve horizontal fine-tuning. At the same time, the third slide bar 25 slides on the positioning rod 17. The second connecting block 26 connects the second slide bar 23 and the third slide bar 25 to provide structural stability. The positioning hole 24 is arranged on the positioning rod 17. Cooperating with slider three 25, precise positioning is achieved through positioning bolts 27. Positioning bolts 27 pass through positioning holes 24 and are connected to slider three 25, so as to fix and adjust the position of slider three 25. The clamping mechanism is used to fix the substrate to prevent it from moving during printing. The limit frame 20 is connected to slider two 23 to provide support for clamping. The screw 22 is connected to the limit frame 20. The clamping force is adjusted by rotating the screw 22. The positioning head 21 contacts the substrate to achieve clamping. The anti-slip protrusion is arranged on the positioning head 21 to increase friction and prevent the substrate from sliding. The rotating handle is arranged at the other end of the screw 22, so as to manually rotate the screw 22 and adjust the clamping force. The air outlet plate 16 is connected to the side of the printing table 5 for hot air drying during printing.

[0039] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A screen printing machine, comprising a frame (1); characterized in that: The frame (1) is connected to a bracket (28), and the bracket (28) is connected to a printed board (29); The frame (1) is connected to a printing platform (5), a rotating shaft (4) is connected between the printing platform (5) and the frame (1), an adjusting mechanism is provided inside the frame (1), the adjusting mechanism comprises a screw rod (7) and a sliding rod (9), a support frame (2) is provided inside the frame (1), the screw rod (7) is connected to one end of the support frame (2) away from the frame (1), the end of the screw rod (7) away from the support frame (2) is connected to a motor (6), the frame (1) is connected to an installation box (3), the motor (6) is arranged inside the installation box (3), and the screw rod (7) is slidably connected to the support frame (2). A nut (8) is provided, the sliding rod (9) is connected to the nut (8), the end of the sliding rod (9) away from the nut (8) is connected to a lifting block (13), a slide groove (14) is provided on the back of the printing table (5), the slide groove (14) and the lifting block (13) are arranged in cooperation, the end of the sliding rod (9) away from the nut (8) is connected to a slider (12), the frame (1) is internally connected to a connecting block (11), the end of the connecting block (11) away from the frame (1) is connected to two sliding rods (10), and the slider (12) is slidably connected between the two sliding rods (10); The printing table (5) is provided with a limiting mechanism, which is symmetrically arranged and comprises two positioning rods (17) and two sliding rods (18). The two positioning rods (17) and the two sliding rods (18) are both connected to the printing table (5), the sliding rods (18) are arranged on one side of the positioning rod (17), and a sliding mechanism is connected between the sliding rods (18) and the positioning rod (17); and a clamping mechanism is connected to the sliding mechanism.

2. A screen printing machine according to claim 1, characterized in that: The lifting block (13) is made of aluminum alloy material.

3. A screen printing machine according to claim 1, characterized in that: The slider 1 (12) is an I-shaped structure.

4. A screen printing machine according to claim 1, characterized in that: The two ends of the slide rod (18) are connected to a limiting head (19).

5. A screen printing machine according to claim 1, characterized in that: The sliding mechanism comprises a second sliding block (23) and a third sliding block (25), wherein the second sliding block (23) is slidably connected to the second sliding block (18), and the third sliding block (25) is slidably connected to the positioning block (17), and a connecting block (26) is connected between the second sliding block (23) and the third sliding block (25).

6. A screen printing machine according to claim 5, characterized in that: The positioning rod (17) is provided with a plurality of positioning holes (24), a positioning bolt (27) is connected between the slider (25) and the positioning hole (24), and the positioning bolt (27) is arranged in coordination with the positioning hole (24).

7. A screen printing machine according to claim 1, characterized in that: The clamping mechanism comprises two limiting frames (20), both of which are connected to a second sliding block (23), a screw rod (22) being connected to the limiting frames (20), and a positioning head (21) being connected to the end of the screw rod (22).

8. A screen printing machine according to claim 7, characterized in that: The positioning head (21) is connected with an anti-slip protrusion.

9. A screen printing machine according to claim 7, characterized in that: One end of the screw rod (22) away from the positioning head (21) is connected to a rotating handle.

10. A screen printing machine according to claim 1, characterized in that: The side of the printing platform (5) is connected to an air outlet plate (16), and the air outlet plate (16) is provided with a plurality of air outlets.

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