Glue scraping mechanism of screen printing machine

Abstract

The utility model discloses a screen printing machine glue scraping mechanism which comprises an installation plate, a first side supporting plate, a second side supporting plate, a rotating plate, scraping plates, a limiting block, a limiting clamping plate, an air cylinder and a clamping piece. The rotating plate can be driven by a motor to rotate, and therefore the scraping plates on the upper end face and the lower end face of the rotating plate can be continuously switched; according to the invention, a single scraper is prevented from being heated and softened after being continuously contacted and rubbed with a silk screen, the influence on the printing quality after the printing pressure is reduced is avoided, the heat dissipation of the scraper is also facilitated in the rotating process of the scraper, the limiting block is a square limiting block with the periphery in smooth transition, the limiting clamping plate is a clamping plate with a U-shaped section, and the limiting block is clamped on the limiting clamping plate; by arranging the limiting block and the limiting clamping plate, the motor can drive the rotating plate to rotate by 90 degrees at a time, so that the scraping plates on the upper end face and the lower end face of the rotating plate are conveniently positioned, converted and adjusted, the clamping piece is driven by the air cylinder to descend to clamp the scraping plates, and the stability of the scraping plates and the reliability of the device can be improved when the device does reciprocating glue scraping motion.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to a glue scraping mechanism of a screen printing machine. Background Art

[0002] When the screen printing machine is working, the scraper continues to contact and rub against the screen, the temperature rises, the scraper softens after heating up, the printing pressure decreases, and the printing quality is affected.

[0003] The Chinese patent with the existing authorization announcement number CN219256757U discloses a screen printing machine scraping mechanism, including a frame, the frame is slidably connected with a mounting frame, the mounting frame is equipped with a hydraulic cylinder, the hydraulic cylinder is equipped with a scraper frame, the scraper frame is equipped with a scraper, the scraper frame is fixedly connected with a cooling pipe on the inner side, the bottom end of the cooling pipe is provided with a wind nozzle, the scraper frame is bolted with a side frame through a bolt b, the cooling pipe is interconnected with a fan, the air inlet of the fan extends to the inside of the refrigeration box, the scraper includes a reinforcement layer b, a reinforcement layer a, an outer layer and an inner layer, the outer layer is composited with the inner layer, the outer layer is bonded with a reinforcement layer a, and the reinforcement layer a is located on the inner side of the reinforcement layer b. The cooling pipe continuously blows low-temperature air to the scraper to cool the scraper; the reinforcement layer a, the reinforcement layer b and the outer layer cooperate to improve the overall oil resistance and chemical resistance of the scraper, thereby improving its overall service life.

[0004] The disadvantage of the above-mentioned prior art solution is that the scraper is cooled by providing a cooling pipe, a fan and a refrigeration box, which makes the cost of the device relatively high and there is still room for improvement in terms of economy. Utility Model Content

[0005] The utility model aims to provide a screen printing machine scraper mechanism to solve the technical problem that in the prior art, a cooling pipe, a fan and a refrigeration box are provided to cool the scraper, which makes the device costly and has a certain room for improvement in terms of economy.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A glue scraping mechanism for a screen printing machine, comprising:

[0008] A mounting plate, with side support plate 1 and side support plate 2 fixedly connected at both ends of the mounting plate, a motor is arranged on the side support plate 1, and a limit clamping plate is arranged on the side support plate 2;

[0009] Rotating plate, scrapers are fixedly connected on the upper and lower end surfaces of the rotating plate, connecting shafts are fixedly connected on both ends of the rotating plate, the connecting shafts on both sides of the rotating plate respectively penetrate the side support plate one and the side support plate two, the connecting shafts on both sides of the rotating plate are rotatably connected with the side support plate one and the side support plate two respectively, the driving end of the motor is coaxially fixedly connected with the connecting shaft on the side support plate one, a limiting block is fixedly connected to the connecting shaft on the side support plate two, and the limiting block is clamped on the limiting clamping plate.

[0010] As a further solution of the utility model: the limiting block is a square limiting block with smooth transitions on all sides, and the limiting clamping plate is a clamping plate with a U-shaped cross section.

[0011] As a further solution of the utility model: bearings are penetrated and embedded in the side support plate one and the side support plate two, the outer rings of the bearings are fixedly connected to the side support plate one and the side support plate two, the connecting shaft is coaxially penetrated and fixedly connected to the inner ring of the bearing, a fixing plate is fixedly connected to the side support plate two, and the limiting clamp is fixedly connected to the fixing plate.

[0012] As a further solution of the utility model: a fixed sleeve frame is fixedly connected to the mounting plate, a cylinder is fixedly connected to the fixed sleeve frame, a driving end of the cylinder is downwardly arranged, a telescopic rod is fixedly connected to the driving end of the cylinder, and a clamping piece is fixedly connected to the lower end of the telescopic rod.

[0013] As a further solution of the utility model: the clamping piece is a clamping piece with a U-shaped cross section.

[0014] As a further solution of the utility model: a connecting plate is fixedly connected to the mounting plate, and a threaded hole is provided on the connecting plate.

[0015] Beneficial effects of the utility model:

[0016] 1. When the utility model is in use, the motor can drive the rotating plate to rotate, so that the scrapers on the upper and lower ends of the rotating plate can be continuously switched to prevent a single scraper from heating up and softening after continuous contact and friction with the screen, and to avoid the reduction of printing pressure and the impact on printing quality. The scraper is also conducive to heat dissipation during the rotation process;

[0017] 2. The limit block of the utility model is a square limit block with smooth transitions on all sides, and the limit clamping plate is a clamping plate with a U-shaped cross-section. The limit block is clamped on the limit clamping plate. By arranging the limit block and the limit clamping plate, the motor can drive the rotating plate to rotate 90 degrees at a time, so as to facilitate the positioning and conversion adjustment of the scraper on the upper and lower end surfaces of the rotating plate, thereby improving the accuracy of the scraper conversion adjustment. After the scraper conversion adjustment is completed, the scraper is clamped by driving the clamping part to descend through the cylinder, which can improve the stability of the scraper when the device is performing reciprocating scraping motion, thereby improving the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0020] Figure 2 It is a schematic diagram of the forward structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0022] In the figure: 1. mounting plate; 2. side support plate 1; 3. side support plate 2; 4. connecting plate; 5. threaded hole; 6. rotating plate; 7. scraper; 8. bearing; 9. connecting shaft; 10. motor; 11. limit block; 12. limit clamp; 13. fixing plate; 14. cylinder; 15. telescopic rod; 16. clamping piece. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 3 As shown, a screen printing machine scraper mechanism includes a mounting plate 1 and a rotating plate 6, the mounting plate 1 has side support plates 2 and 3 fixedly connected at both ends, the side support plates 2 are provided with a motor 10, and the side support plates 2 are provided with a limit clamping plate 12, the upper and lower end surfaces of the rotating plate 6 are fixedly connected with scrapers 7, and the two ends of the rotating plate 6 are fixedly connected with connecting shafts 9, the connecting shafts 9 on both sides of the rotating plate 6 respectively penetrate the side support plates 1 and 3, and the connecting shafts 9 on both sides of the rotating plate 6 are rotatably connected with the side support plates 1 and 3, respectively, the driving end of the motor 10 is coaxially fixedly connected with the connecting shaft 9 on the side support plate 2, and the connecting shaft 9 on the side support plate 2 is fixedly connected to a limit block 11, and the limit block 11 is clamped on the limit clamping plate 12.

[0025] In some specific implementation schemes, the limiting block 11 is a square limiting block with smooth transitions on all sides, and the limiting clamping plate 12 is a clamping plate with a U-shaped cross-section.

[0026] Bearings 8 are penetrated and embedded in the side support plates 1 2 and 2 3, the outer ring of the bearing 8 is fixedly connected to the side support plates 1 2 and 2 3, the connecting shaft 9 is coaxially penetrated and fixedly connected to the inner ring of the bearing 8, a fixing plate 13 is fixedly connected to the side support plate 2 3, and the limiting clamping plate 12 is fixedly connected to the fixing plate 13.

[0027] A fixed sleeve frame is fixedly connected to the mounting plate 1, and a cylinder 14 is fixedly connected to the fixed sleeve frame. The driving end of the cylinder 14 is set downward, and a telescopic rod 15 is fixedly connected to the driving end of the cylinder 14. The lower end of the telescopic rod 15 is fixedly connected to a clamping piece 16, which is a clamping piece with a U-shaped cross-section.

[0028] A connecting plate 4 is fixedly connected to the mounting plate 1, and a threaded hole 5 is provided on the connecting plate 4. The threaded hole 5 on the connecting plate 4 is convenient for connecting the entire device to the reciprocating drive mechanism. The reciprocating drive mechanism can drive the entire device to perform reciprocating motion to realize the scraping action. The reciprocating drive mechanism is a slide cylinder.

[0029] In order to facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution is briefly described in combination with specific application scenarios:

[0030] When in use, the motor 10 can drive the rotating plate 6 to rotate, so that the scrapers 7 on the upper and lower end surfaces of the rotating plate 6 can be continuously switched to prevent a single scraper from heating up and softening after continuous contact and friction with the screen, and to avoid the printing quality being affected by the reduced printing pressure. The scraper 7 is also beneficial to its heat dissipation during the rotation process. The limit block 11 is a square limit block with smooth transitions on all sides, and the limit clamping plate 12 is a clamping plate with a U-shaped cross-section. The limit block 11 is clamped on the limit clamping plate 12. By setting the limit block 11 and the limit clamping plate 12, the motor 10 can drive the rotating plate 6 to rotate 90 degrees at a time, so as to facilitate the positioning conversion adjustment of the scrapers 7 on the upper and lower end surfaces of the rotating plate 6, and improve the accuracy of the conversion adjustment of the scraper 7. After the conversion adjustment of the scraper 7 is completed, the clamping member 16 is driven to descend by the cylinder 14 to clamp the scraper 7, which can improve the stability of the scraper 7 when the device is performing reciprocating scraping movement, thereby improving the reliability of the device.

[0031] Several embodiments of the utility model are described in detail above, but the embodiments of the utility model are not limited thereto and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A screen printing machine scraping mechanism, characterized in that: include: A mounting plate (1), with side support plate 1 (2) and side support plate 2 (3) respectively fixedly connected at both ends of the mounting plate (1), a motor (10) being arranged on the side support plate 1 (2), and a limit clamping plate (12) being arranged on the side support plate 2 (3); A rotating plate (6) is provided, and scrapers (7) are fixedly connected to the upper and lower end surfaces of the rotating plate (6). Connecting shafts (9) are fixedly connected to both ends of the rotating plate (6). The connecting shafts (9) on both sides of the rotating plate (6) respectively penetrate the side support plate 1 (2) and the side support plate 2 (3). The connecting shafts (9) on both sides of the rotating plate (6) are respectively rotatably connected to the side support plate 1 (2) and the side support plate 2 (3). The driving end of the motor (10) is coaxially fixedly connected to the connecting shaft (9) on the side support plate 1 (2). A limiting block (11) is fixedly connected to the connecting shaft (9) on the side support plate 2 (3), and the limiting block (11) is clamped on the limiting clamping plate (12).

2. A screen printing machine scraper mechanism according to claim 1, characterized in that: The limiting block (11) is a square limiting block with smooth transitions on all sides, and the limiting clamping plate (12) is a clamping plate with a U-shaped cross section.

3. The screen printing machine scraping mechanism according to claim 1, characterized in that: A bearing (8) is inserted through and embedded in the side support plate 1 (2) and the side support plate 2 (3); the outer ring of the bearing (8) is fixedly connected to the side support plate 1 (2) and the side support plate 2 (3); a connecting shaft (9) is coaxially inserted through and fixedly connected to the inner ring of the bearing (8); a fixing plate (13) is fixedly connected to the side support plate 2 (3); and a limiting clamping plate (12) is fixedly connected to the fixing plate (13).

4. The screen printing machine scraping mechanism according to claim 1, characterized in that: A fixed sleeve frame is fixedly connected to the mounting plate (1), a cylinder (14) is fixedly connected to the fixed sleeve frame, a driving end of the cylinder (14) is arranged downward, a telescopic rod (15) is fixedly connected to the driving end of the cylinder (14), and a clamping piece (16) is fixedly connected to the lower end of the telescopic rod (15).

5. The screen printing machine scraping mechanism according to claim 4, characterized in that: The clamping piece (16) is a clamping piece with a U-shaped cross section.

6. The screen printing machine scraping mechanism according to claim 1, characterized in that: A connecting plate (4) is fixedly connected to the mounting plate (1), and a threaded hole (5) is provided on the connecting plate (4).

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