A left-right repetitive printing automatic screen printing mechanism

Abstract

The present invention relates to the technical field of printing equipment, and in particular to an automatic silk-screen printing mechanism with left-right repeated printing, comprising a conveyor and a silk-screen frame, a mounting block is provided on the top of the silk-screen frame, two driving members are provided on the mounting block, two scrapers are provided on the bottom of the mounting block, two paint delivery channels are provided on the mounting block, a mounting plate is provided on one side of the mounting block, a reciprocating assembly is provided on the mounting plate, paste is introduced into the scraper through a paint delivery channel close to the middle of the silk-screen frame, flows along the scraper to the silk-screen of the silk-screen frame, and is accumulated in strips, and the paste is made to act on the printed part through the scraper through the pattern holes on the silk-screen through the cooperation of the reciprocating assembly and the driving member, thereby solving the problem of the existing printing press paste adding method resulting in excessive paste amount, most of the paste flows to the two sides of the scraper, which is not only seriously wasted, but also affects the normal use of the scraper after the paste is dried.

Description

Technical Field

[0001] The invention relates to the technical field of printing equipment, and in particular to an automatic silk-screen printing mechanism for repeated left-right printing. Background Art

[0002] Screen printing is a widely used printing technology. During printing, the slurry is transferred to the substrate through the mesh of the image part of the printing plate by the extrusion of the scraper, forming the same image as the original. For example, the patent application number CN105383155A proposes an invention patent for a screen printing device and a screen printing method, which can prevent the reduction of productivity and supply paste to the mask.

[0003] However, in the above patent, the paste is transported from one place to the mask plate, and then the paste is diffused in a circular shape to all sides, and the paste is flattened and moved to the pattern holes by the scraper. Due to the excessive amount of paste, most of the paste flows to both sides of the scraper, which is not only seriously wasted, but also will interfere with the scraper after the paste dries. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose an automatic silk-screen printing mechanism that prints repeatedly on the left and right sides, so as to solve the problem that the existing method of adding paste to the printing machine leads to excessive amount of paste, and most of the paste flows to the two sides of the scraper, which is not only seriously wasted, but also affects the normal use of the scraper after the paste dries.

[0005] Based on the above purpose, the present invention provides a left-right repeated printing type automatic silk-screen printing mechanism, comprising a conveyor and a silk-screen screen frame, wherein the silk-screen screen frame is arranged on the top of the conveyor, a mounting block is arranged on the top of the silk-screen screen frame, two driving members are arranged on the mounting block, two scrapers are arranged on the bottom of the mounting block, each of the scrapers is respectively connected to the driving member by transmission, two paint delivery channels are arranged on the mounting block, each of the paint delivery channels is respectively arranged corresponding to one of the scrapers, a mounting plate is arranged on one side of the mounting block, the mounting plate is mounted on the conveyor, a reciprocating assembly is arranged on the mounting plate, the reciprocating assembly is connected to the mounting block by transmission, and the silk-screen screen frame is arranged on the mounting plate;

[0006] The paste is applied to the scraper through the paint delivery channel, so that the paste is evenly distributed along the scraper and flows onto the screen of the screen printing frame.

[0007] Preferably, the conveyor is provided with a guide assembly, and the guide assembly comprises:

[0008] A first support plate, fixedly arranged on one side of the conveyor;

[0009] A fixing plate, arranged on the top of the first supporting plate;

[0010] A first cylinder is arranged on the top of the first supporting plate, the first cylinder is fixedly connected to one side of the fixing plate, and a telescopic rod of the first cylinder is passed through the fixing plate;

[0011] A pressing plate, arranged at the bottom of the screen printing frame, and the pressing plate is fixedly connected to the telescopic rod of the first cylinder;

[0012] A stop plate is arranged on a side of the conveyor away from the pressing plate, one end of the stop plate is fixedly connected to the top of the conveyor, and the other end of the stop plate is extended and arranged close to the pressing plate;

[0013] At least one first guide rod is passed through the fixing plate, and one end of the first guide rod is fixedly connected to the pressing plate.

[0014] Preferably, a groove is provided on the side of the pressure plate away from the first cylinder, an adjustment plate is fixed inside the groove, waist-shaped slides are respectively provided on both ends of the adjustment plate through the sides of the pressure plate, each waist-shaped slide is provided with a limit block on the side away from the first cylinder, each limit block is provided with two sliding rods, and every two sliding rods are respectively arranged inside one of the waist-shaped slides.

[0015] Preferably, a lifting slide is provided on a side of the mounting plate away from the silk-screen screen frame, the lifting slide is mounted on the conveyor, and the slide of the lifting slide is fixedly connected to the mounting plate.

[0016] Preferably, at least two first rectangular through holes are provided on the mounting plate, and support frames are respectively sleeved on the sides of the silk-screen screen frame, and at least two threaded pressing rods are passed through the top of each of the support frames, and one end of each of the pressing rods is abutted against the top of the silk-screen screen frame, and each of the support frames is provided with a first clamping plate on the side close to the mounting plate, and a plate of each of the first clamping plates is respectively passed through the first rectangular through hole, and each of the first clamping plates is clamped by bolts.

[0017] Preferably, the reciprocating assembly comprises:

[0018] A belt-type synchronous wheel, both ends of which are rotatably connected and arranged on a side of the mounting plate close to the screen printing frame;

[0019] A DC motor is mounted on a side of the mounting plate away from the belt-type synchronous wheel, and an output shaft of the DC motor is fixedly connected to one end of the belt-type synchronous wheel;

[0020] A slider, one side of which is fixedly connected to the mounting block, the slider is provided with two second guide rods, and each of the second guide rods is mounted on the mounting plate;

[0021] The second clamping plate is fixedly sleeved on the belt of the belt-type synchronous wheel, and the second clamping plate is fixedly connected to the sliding block.

[0022] Preferably, the driving member comprises:

[0023] A second cylinder is inserted on the top of the mounting block;

[0024] A connecting plate, arranged at the bottom of the mounting block, and the connecting plate is fixedly connected to the telescopic rod of the second cylinder;

[0025] A convex block is arranged at the bottom of the connecting plate;

[0026] A third clamping plate is arranged at the bottom of the protrusion, the top of one plate of the third clamping plate is hinged to the protrusion, the scraper is inserted in the third clamping plate, and the scraper is fixedly connected to the third clamping plate;

[0027] The third guide rod is passed through the mounting block, and one end of the third guide rod is fixedly connected to the top of the connecting plate.

[0028] Preferably, a second rectangular through hole is provided inside the protrusion, one end of the second rectangular through hole is arranged close to the third clamping plate, and a connecting tube is provided in the internal sliding connection of the paint supply channel, one end of the connecting tube passes through the connecting plate and is connected with the second rectangular through hole, and the connecting tube is fixedly connected to the connecting plate.

[0029] The beneficial effects of the present invention are as follows: the printed work is transported to the bottom of the silk-screen screen frame by a conveyor, at which time the conveyor stops running, and the paste is introduced onto the scraper through a paint delivery channel close to the middle of the silk-screen screen frame, flows along the scraper to the silk-screen screen of the silk-screen screen frame, and is accumulated in strips, and the scraper is driven downward by a driving member corresponding to another paint delivery channel until it is against the silk-screen screen of the silk-screen screen frame, and the mounting block is driven to move by the reciprocating assembly, and the driving member is driven to move by the mounting block, and the scraper is driven to move by the driving member, and the paste is driven to move on the silk-screen screen by the scraper, so that the paste acts on the printed work through the pattern holes on the silk-screen screen to complete the printing work, which solves the problem of the existing printing press paste adding method, which leads to excessive paste dosage, and most of the paste flows to both sides of the scraper, which is not only seriously wasted, but also affects the normal use of the scraper after the paste is dried. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the guiding assembly according to an embodiment of the present invention;

[0033] Figure 3 It is a schematic diagram of the three-dimensional structure of the reciprocating assembly according to an embodiment of the present invention;

[0034] Figure 4 It is a schematic diagram of the planar structure of a driving member according to an embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the bottom of the bump according to an embodiment of the present invention.

[0036] The markings in the figure are:

[0037] 1. Conveyor; 2. Silk screen frame; 3. Mounting block; 4. Driving member; 5. Scraper; 6. Paint delivery channel; 7. Mounting plate; 8. Reciprocating assembly; 9. First support plate; 10. Fixed plate; 11. First cylinder; 12. Pressing plate; 13. Abutment plate; 14. First guide rod; 15. Groove; 16. Adjusting plate; 17. Waist-shaped slideway; 18. Limiting block; 19. Slide rod; 20. Lifting slide; 21. First rectangular through hole; 22. Support frame; 23. Pressing rod; 24. First clamping plate; 25. Bolt; 26. Belt synchronous wheel; 27. DC motor; 28. Sliding block; 29. ​​Second guide rod; 30. Second clamping plate; 31. Second cylinder; 32. Connecting plate; 33. Bump; 34. Third clamping plate; 35. Third guide rod; 36. Second rectangular through hole; 37. Connecting pipe. DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] like Figures 1 to 5 As shown, a left-right repeated printing type automatic silk-screen mechanism comprises a conveyor 1 and a silk-screen frame 2, wherein the silk-screen frame 2 is arranged on the top of the conveyor 1, a mounting block 3 is arranged on the top of the silk-screen frame 2, two driving members 4 are arranged on the mounting block 3, two scrapers 5 are arranged on the bottom of the mounting block 3, each of the scrapers 5 is respectively connected to the driving member 4 by transmission, two paint delivery channels 6 are arranged on the mounting block 3, each of the paint delivery channels 6 is respectively arranged corresponding to one of the scrapers 5, a mounting plate 7 is arranged on one side of the mounting block 3, the mounting plate 7 is mounted on the conveyor 1, a reciprocating assembly 8 is arranged on the mounting plate 7, the reciprocating assembly 8 is connected to the mounting block 3 by transmission, and the silk-screen frame 2 is mounted on the mounting plate 7;

[0041] The paste is applied to the scraper 5 through the paint delivery channel 6 , so that the paste flows evenly along the scraper 5 onto the screen of the screen printing frame 2 .

[0042] The printed part is transported to the bottom of the silk-screen frame 2 by the conveyor 1. At this time, the conveyor 1 stops running, and the paste is introduced onto the scraper 5 through a paint delivery channel 6 near the middle of the silk-screen frame 2, and flows along the scraper 5 to the silk-screen screen of the silk-screen frame 2, and is accumulated in strips. The driving member 4 corresponding to another paint delivery channel 6 drives the scraper 5 to move downward until it is against the silk-screen screen of the silk-screen frame 2, and the mounting block 3 is driven to move by the reciprocating assembly 8, and the driving member 4 is driven to move by the mounting block 3, and the scraper 5 is driven to move by the driving member 4, and the paste is driven to move on the silk-screen screen by the scraper 5, so that the paste acts on the printed part through the pattern holes on the silk-screen screen to complete the printing work, which solves the problem of the existing printing press paste adding method, which leads to excessive paste dosage, and most of the paste flows to the two sides of the scraper 5, which is not only seriously wasted, but also affects the normal use of the scraper 5 after the paste is dried.

[0043] As an optional embodiment, the conveyor 1 is provided with a guide assembly, and the guide assembly includes:

[0044] A first support plate 9, fixedly arranged on one side of the conveyor 1;

[0045] A fixing plate 10, arranged on the top of the first supporting plate 9;

[0046] A first cylinder 11 is disposed on the top of the first supporting plate 9, the first cylinder 11 is fixedly connected to one side of the fixing plate 10, and a telescopic rod of the first cylinder 11 is passed through the fixing plate 10;

[0047] A pressing plate 12 is arranged at the bottom of the screen printing frame 2, and the pressing plate 12 is fixedly connected to the telescopic rod of the first cylinder 11;

[0048] A stop plate 13 is arranged on a side of the conveyor 1 away from the pressing plate 12, one end of the stop plate 13 is fixedly connected to the top of the conveyor 1, and the other end is extended and arranged close to the pressing plate 12;

[0049] At least one first guide rod 14 is passed through the fixing plate 10 , and one end of the first guide rod 14 is fixedly connected to the pressing plate 12 .

[0050] For example, when the printed workpiece is conveyed to the bottom of the silk-screen frame 2, the first cylinder 11 drives the pressure plate 12 to move and abut against one side of the printed workpiece, the first guide rod 14 limits the pressure plate 12, and the pressure plate 12 drives the other side of the printed workpiece to abut against the abutment plate 13, so that the printed workpiece is guided and clamped, which solves the problem that the printed workpiece follows the movement of the scraper 5, causing the printed pattern to be offset or unable to act on the surface of the printed workpiece.

[0051] As an optional embodiment, a groove 15 is provided on the side of the pressure plate 12 away from the first cylinder 11, an adjustment plate 16 is fixed inside the groove 15, and waist-shaped slides 17 are provided at both ends of the adjustment plate 16 through the side of the pressure plate 12, and each waist-shaped slide 17 is provided with a limit block 18 on the side away from the first cylinder 11, and each limit block 18 is provided with two sliding rods 19, and each two sliding rods 19 are respectively arranged inside one of the waist-shaped slides 17.

[0052] For example, by providing a groove 15 on the pressure plate 12, providing an adjustment plate 16 in the groove 15, providing a waist-shaped slide 17 on the adjustment plate 16, providing a limit block 18, and providing a slide bar 19 on the limit block 18, and the slide bar 19 is provided in the waist-shaped slide 17, according to the model of the printed part, the position of the slide bar 19 is set in the waist-shaped through hole, and the position of the limit block 18 is limited by fixing the slide bar 19. When the pressure plate 12 drives the adjustment plate 16 to abut against the printed part, the limit block 18 limits the length of the printed part, thereby further aligning the printed pattern with the surface of the printed part, thereby achieving the problem of unified position of the printed pattern on the printed part.

[0053] As an optional embodiment, a lifting slide 20 is provided on the side of the mounting plate 7 away from the silk-screen screen frame 2 , the lifting slide 20 is mounted on the conveyor 1 , and the slide of the lifting slide 20 is fixedly connected to the mounting plate 7 .

[0054] For example, by providing a lifting slide 20, the installation plate 7 is driven to move up and down by the lifting slide 20, so that the height of the screen printing frame 2 can be adjusted according to the height of the printed part.

[0055] As an optional embodiment, at least two first rectangular through holes 21 are provided on the mounting plate 7, and support frames 22 are respectively sleeved on the sides of the silk-screen screen frame 2. At least two threaded pressing rods 23 are passed through the top of each of the support frames 22, and one end of each of the pressing rods 23 is abutted against the top of the silk-screen screen frame 2. A first clamping plate 24 is provided on the side of each of the support frames 22 close to the mounting plate 7, and a plate of each of the first clamping plates 24 is respectively passed through the first rectangular through hole 21, and each of the first clamping plates 24 is clamped by a bolt 25.

[0056] For example, by setting a support frame 22 and setting a pressing rod 23 on the support frame 22, the silk screen frame 2 is stably set at the bottom of the scraper 5, by setting a first rectangular through hole 21 on the mounting plate 7, by setting a first clamping plate 24 on the support frame 22, by inserting one plate of the first clamping plate 24 into the first rectangular through hole 21, and setting the other plate at the bottom of the mounting plate 7, by setting the position of the first clamping plate 24 in the first rectangular through hole 21, and fixing the first clamping plate 24 to the mounting plate 7 by bolts 25, the support frame 22 can be adjusted according to different models of silk screen frames 2.

[0057] As an optional embodiment, the reciprocating assembly 8 includes:

[0058] A belt-type synchronous wheel 26, both ends of which are rotatably connected and arranged on one side of the mounting plate 7 close to the screen printing frame 2;

[0059] A DC motor 27 is mounted on a side of the mounting plate 7 away from the belt-type synchronous wheel 26, and an output shaft of the DC motor 27 is fixedly connected to one end of the belt-type synchronous wheel 26;

[0060] A slider 28, one side of which is fixedly connected to the mounting block 3, and two second guide rods 29 are provided on the slider 28, and each of the second guide rods 29 is mounted on the mounting plate 7;

[0061] The second clamping plate 30 is fixedly sleeved on the belt of the belt-type synchronous wheel 26 , and the second clamping plate 30 is fixedly connected to the slider 28 .

[0062] For example, the forward and reverse rotation of the belt synchronous wheel 26 is controlled by a DC motor 27, a slider 28 is provided, and a second guide rod 29 is provided on the slider 28, and the second guide rod 29 is fixed on the mounting plate 7. The mounting block 3 is fixed to the slider 28, so that the stability of the mounting block 3 during the movement is improved, and a second clamping plate 30 is provided on the slider 28, and the belt of the belt synchronous wheel 26 is clamped by the second clamping plate 30, and the second clamping plate 30 is driven to move back and forth by the belt synchronous wheel 26, so that both scrapers 5 can complete the printing work.

[0063] As an optional embodiment, the driving member 4 includes:

[0064] A second cylinder 31 is inserted on the top of the mounting block 3;

[0065] A connecting plate 32 is provided at the bottom of the mounting block 3, and the connecting plate 32 is fixedly connected to the telescopic rod of the second cylinder 31;

[0066] A protrusion 33 is arranged at the bottom of the connecting plate 32;

[0067] A third clamping plate 34 is arranged at the bottom of the protrusion 33, the top of one plate of the third clamping plate 34 is hinged to the protrusion 33, the scraper 5 is inserted in the third clamping plate 34, and the scraper 5 is fixedly connected to the third clamping plate 34;

[0068] The third guide rod 35 is passed through the mounting block 3 , and one end of the third guide rod 35 is fixedly connected to the top of the connecting plate 32 .

[0069] For example, the third guide rod 35 is used to prevent the second cylinder 31 from driving the connecting plate 32 to rotate and deviate during the movement. The second cylinder 31 drives the connecting plate 32 to move downward, the connecting plate 32 drives the protrusion 33 to move downward, the protrusion 33 drives the third clamping plate 34 to move downward, and the third clamping plate 34 drives the scraper 5 to move downward, so that the scraper 5 can drive the paste to act on the printing pattern holes.

[0070] As an optional embodiment, a second rectangular through hole 36 is provided inside the protrusion 33, one end of the second rectangular through hole 36 is arranged close to the third clamping plate 34, and a connecting tube 37 is provided inside the paint supply channel 6 for sliding connection, one end of the connecting tube 37 passes through the connecting plate 32 and is connected to the second rectangular through hole 36, and the connecting tube 37 is fixedly connected to the connecting plate 32.

[0071] For example, by setting a second rectangular through hole 36 inside the protrusion 33, by setting a connecting tube 37 in the paint supply channel 6, and by connecting the connecting tube 37 with the connecting plate 32, the paste can flow into the third clamping plate 34 through the second rectangular through hole 36, and flow into the scraper 5 through the gap of the third clamping plate 34, and flow in the shape of strips along the angle of the scraper 5 on the silk screen, so that the amount of paste flowing to the two sides of the scraper 5 during the movement is reduced, thereby avoiding excessive waste.

[0072] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0073] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A left-right repetitive printing automatic screen printing mechanism, comprising a conveyor (1) and a screen printing frame (2), wherein the screen printing frame (2) is arranged on the top of the conveyor (1). It is characterized in that A mounting block (3) is provided on the top of the screen printing screen frame (2), two driving members (4) are provided on the mounting block (3), two scrapers (5) are provided on the bottom of the mounting block (3), each of the scrapers (5) is respectively connected to the driving member (4) in a transmission manner, two paint delivery channels (6) are provided on the mounting block (3), each of the paint delivery channels (6) is respectively arranged corresponding to one of the scrapers (5), a mounting plate (7) is provided on one side of the mounting block (3), the mounting plate (7) is mounted on the conveyor (1), a reciprocating assembly (8) is provided on the mounting plate (7), the reciprocating assembly (8) is connected to the mounting block (3) in a transmission manner, and the screen printing screen frame (2) is mounted on the mounting plate (7); The paste is applied to the scraper (5) through the paint delivery channel (6), so that the paste flows evenly along the scraper (5) onto the screen of the screen printing frame (2); The conveyor (1) is provided with a guide assembly, and the guide assembly comprises: A first support plate (9) fixedly arranged on one side of the conveyor (1); A fixing plate (10) arranged on top of the first supporting plate (9); A first cylinder (11) is arranged on the top of the first support plate (9), the first cylinder (11) is fixedly connected to one side of the fixing plate (10), and a telescopic rod of the first cylinder (11) is passed through the fixing plate (10); A pressing plate (12) is arranged at the bottom of the silk-screen frame (2), and the pressing plate (12) is fixedly connected to the telescopic rod of the first cylinder (11); A stop plate (13) is arranged on a side of the conveyor (1) away from the pressing plate (12), one end of the stop plate (13) is fixedly connected to the top of the conveyor (1), and the other end is extended and arranged close to the pressing plate (12); at least one first guide rod (14) passing through the fixing plate (10), and one end of the first guide rod (14) being fixedly connected to the pressing plate (12); A groove (15) is provided on the side of the pressure plate (12) away from the first cylinder (11), an adjustment plate (16) is fixedly provided inside the groove (15), and waist-shaped slideways (17) are provided at both ends of the adjustment plate (16) through the side of the pressure plate (12), and each waist-shaped slideway (17) is provided with a limit block (18) on the side away from the first cylinder (11), and each limit block (18) is provided with two slide bars (19), and each two slide bars (19) are respectively arranged inside one waist-shaped slideway (17).

2. According to claim 1, an automatic screen printing mechanism for repeated printing left and right, It is characterized in that A lifting slide (20) is provided on a side of the mounting plate (7) away from the screen printing frame (2); the lifting slide (20) is mounted on the conveyor (1), and the slide of the lifting slide (20) is fixedly connected to the mounting plate (7).

3. According to claim 1, a left-right repetitive printing type automatic screen printing mechanism, It is characterized in that At least two first rectangular through holes (21) are provided on the mounting plate (7), and support frames (22) are respectively sleeved on the sides of the screen printing frame (2). At least two threaded pressing rods (23) are passed through the top of each support frame (22), and one end of each pressing rod (23) is abutted against the top of the screen printing frame (2). A first clamping plate (24) is provided on the side of each support frame (22) close to the mounting plate (7), and a plate of each first clamping plate (24) is respectively passed through the first rectangular through hole (21), and each first clamping plate (24) is clamped by a bolt (25).

4. According to claim 1, a left-right repetitive printing type automatic screen printing mechanism, It is characterized in that The reciprocating assembly (8) comprises: A belt-type synchronous wheel (26), both ends of which are rotatably connected and arranged on a side of the mounting plate (7) close to the screen printing frame (2); A DC motor (27) is mounted on a side of the mounting plate (7) away from the belt-type synchronous wheel (26), and an output shaft of the DC motor (27) is fixedly connected to one end of the belt-type synchronous wheel (26); A sliding block (28), one side of which is fixedly connected to the mounting block (3), the sliding block (28) being provided with two second guide rods (29), and each of the second guide rods (29) being mounted on the mounting plate (7); The second clamping plate (30) is fixedly sleeved on the belt of the belt-type synchronous wheel (26), and the second clamping plate (30) is fixedly connected to the slider (28).

5. According to claim 1, an automatic screen printing mechanism for repeated printing left and right, It is characterized in that The driving member (4) comprises: A second cylinder (31) inserted on the top of the mounting block (3); A connecting plate (32) is arranged at the bottom of the mounting block (3), and the connecting plate (32) is fixedly connected to the telescopic rod of the second cylinder (31); A convex block (33) is arranged at the bottom of the connecting plate (32); A third clamping plate (34) is arranged at the bottom of the protrusion (33), the top of one plate of the third clamping plate (34) is hinged to the protrusion (33), the scraper (5) is inserted into the third clamping plate (34), and the scraper (5) is fixedly connected to the third clamping plate (34); A third guide rod (35) is passed through the mounting block (3), and one end of the third guide rod (35) is fixedly connected to the top of the connecting plate (32).

6. The automatic screen printing mechanism for repeated printing left and right according to claim 5, It is characterized in that A second rectangular through hole (36) is provided inside the protrusion (33), one end of the second rectangular through hole (36) is arranged close to the third clamping plate (34), and a connecting pipe (37) is provided inside the paint supply channel (6) for sliding connection, one end of the connecting pipe (37) passes through the connecting plate (32) and is connected to the second rectangular through hole (36), and the connecting pipe (37) is fixedly connected to the connecting plate (32).

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