Ink scraping device for printing machine

Abstract

The utility model relates to the technical field of printing machines, and specifically to an ink scraping device of a printing machine, comprising an equipment box body, wherein a printing mechanism is arranged inside the equipment box body, the printing mechanism comprises an ink cartridge, an ink guide roller, a printing roller, and a pressing roller, printing paper is arranged between the pressing roller and the printing roller, an ink scraping mechanism is arranged on the side of the printing roller, the ink scraping mechanism comprises a supporting frame, a positioning rod, a supporting spring, a mounting seat, a scraper, a guide plate and a connecting plate, the scraper is tightly abutted against the side of the printing roller, the left and right side surfaces of the equipment box body are both provided with positioning grooves, and an inspection hole is provided at a position on the right side surface of the equipment box body located above the positioning groove; the mounting seat is pushed forward by the supporting spring, and then the scraper is pushed forward, so that the scraper is always abutted against the surface of the printing roller, and then the ink on the surface of the printing roller is effectively scraped off, so as to avoid a large gap between the scraper and the printing roller, and to ensure the uniformity of the ink on the surface of the printing roller, thereby improving the printing quality.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to an ink scraping device of a printing machine. Background Art

[0002] A printing press is a machine for printing text and images. Generally, the text and images to be printed are first made into printing plates, which are then installed on the printing press. Ink is then applied to the areas with text and images on the printing plates manually or by the printing press, and then directly or indirectly transferred to paper or other substrates.

[0003] Among them, the announcement number CN214056929U discloses an ink scraping device for a printing press, including a box body, the lower end of which is fixedly connected with four bases, the second transmission wheel is connected to the first transmission wheel through a transmission belt, a plurality of stirring shafts are fixedly connected to the third rotating horizontal axis, and a filter plate is provided inside the box body, and the filter plate is connected to the box body through a disassembly device. The utility model has a reasonable structure, and can not only start the motor to make the first sliding sleeve bolt and the second sliding sleeve bolt move back and forth at the same time, so as to ensure that the ink can be scraped in time while the ink is sprayed, but also drive the second gear to rotate intermittently through the rotation of the first gear, so that the ink scraping effect on the ink roller is uniform, and at the same time, through the disassembly device, the filter plate can be conveniently disassembled and assembled, and the filter plate can be cleaned in time, so as to ensure that the scraped excess ink can be directly recycled.

[0004] The device uses a scraper to scrape ink from the ink roller while spraying ink, and uses a filter plate to filter the scraped ink. During the scraping process, the scraper will rub against the surface of the ink roller. During long-term use, the surface of the scraper will cause wear, which will increase the distance between the scraper and the ink roller, reduce the scraping effect, and thus reduce the printing quality.

[0005] Therefore, it is necessary to invent a kind of ink scraping device of printing press to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an ink scraping device for a printing press, so as to solve the problem that during long-term use, the surface of the scraper will be worn, thereby increasing the distance between the scraper and the ink roller, reducing the ink scraping effect, and thus reducing the printing quality.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ink scraping device of a printing machine, comprising an equipment box, a printing mechanism is arranged inside the equipment box, the printing mechanism comprises an ink cartridge, an ink guide roller, a printing roller, and a pressing roller, printing paper is arranged between the pressing roller and the printing roller, an ink scraping mechanism is arranged on the side of the printing roller, the ink scraping mechanism comprises a support frame, a positioning rod, a supporting spring, a mounting seat, a scraper, a guide plate and a connecting plate, the scraper is tightly against the side of the printing roller, positioning grooves are provided on the left and right side surfaces of the equipment box, and an inspection hole is provided on the right side surface of the equipment box at a position above the positioning groove.

[0008] By adopting the above technical solution, the ink guide roller is used to dip the ink inside the ink cartridge. As the ink guide roller and the printing roller rotate, the ink is transferred to the surface of the printing roller, and then the surface of the printing paper is printed. After the ink is transferred to the printing roller, the scraping mechanism scrapes off the excess ink on the surface of the printing roller.

[0009] Optionally, the ink cartridge is fixedly connected to the bottom of the device case, and the left and right ends of the ink guide roller, the printing roller and the pressing roller are rotatably connected to the inner wall of the device case.

[0010] Optionally, the lower half of the ink guide roller is located on the inner side of the ink cartridge, and the printing roller abuts against the surface of the ink guide roller.

[0011] By adopting the above technical solution, ink is added into the interior of the ink cartridge, and the ink guide roller, the printing roller, and the pressing roller cooperate to print on the surface of the printing paper.

[0012] Optionally, the support frame is fixedly connected to the inner wall of the equipment box near the rear side, the positioning rod is slidably connected to the support frame, the mounting seat is fixedly connected to the front end of the positioning rod, and the rear end of the positioning rod is fixedly connected with a locking block.

[0013] By adopting the above technical solution, the positioning rod slides back and forth inside the support frame, thereby driving the mounting seat to slide back and forth.

[0014] Optionally, the support spring is sleeved on the surface of the positioning rod, and the front and rear ends of the support spring are fixedly connected to the surfaces of the mounting seat and the support frame respectively.

[0015] By adopting the above technical solution, the supporting spring is used to push the mounting seat toward the front side.

[0016] Optionally, a connecting groove is provided on the front side surface of the mounting seat, a connecting plate is fixedly connected to the rear side of the scraper, the connecting plate is slidably connected to the connecting groove, and the guide plate is fixedly connected to the lower surface of the scraper.

[0017] By adopting the above technical solution, the connection plate is clamped inside the connection slide groove to fix the scraper plate on the front side of the mounting seat.

[0018] Optionally, a positioning block is fixedly connected to the lower surface of the mounting seat, the left and right ends of the positioning block are slidably connected to the positioning grooves on the left and right sides respectively, and the front side of the positioning block is fixedly connected to an abutment plate.

[0019] By adopting the above technical solution, the positioning block slides inside the positioning groove to support and position the mounting seat.

[0020] Optionally, a slot is provided inside the abutment plate near the right end, a slot is slidably connected to the inside of the slot, a pressing block is fixedly connected to the lower end of the block, slides are fixedly connected to the left and right sides of the block, sliding grooves are provided on the left and right inner walls of the slot, the slides are slidably connected to the sliding grooves, a limiting spring is fixedly connected to the inner bottom wall of the sliding groove, and the upper end of the limiting spring is fixedly connected to the lower surface of the slide.

[0021] By adopting the above technical solution, the limit spring pushes the block upward, and the right end of the scraper is locked and fixed, thereby improving the stability of the scraper.

[0022] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0023] 1. The utility model pushes the mounting seat forward by a supporting spring, and then pushes the scraper forward so that the scraper always contacts the surface of the printing roller, thereby effectively scraping the ink on the surface of the printing roller, avoiding a large gap between the scraper and the printing roller, improving the printing quality, and solving the problem that the scraper surface will be worn, thereby increasing the distance between the scraper and the ink roller, reducing the ink scraping effect, and thus reducing the printing quality;

[0024] 2. The utility model fixes the scraper on the front side of the mounting seat by clamping the connecting plate inside the connecting slide groove. When the scraper is severely worn, the scraper can be pulled out to the right by pulling out the connecting plate to the right, thereby facilitating quick replacement of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0027] Figure 3 This is a schematic diagram of the ink scraping mechanism structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the support frame structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the card block structure of the utility model.

[0030] Description of reference numerals:

[0031] 1. Equipment box; 11. Ink cartridge; 12. Ink guide roller; 13. Printing roller; 14. Pressing roller; 15. Printing paper; 16. Inspection hole; 17. Positioning slot; 2. Support frame; 21. Positioning rod; 22. Support spring; 23. Locking block; 24. Mounting seat; 25. Connecting slot; 26. Positioning block; 27. Abutment plate; 28. Block; 29. ​​Pressing block; 210. Slide plate; 211. Slide groove; 212. Limiting spring; 3. Scraper; 31. Guide plate; 32. Connecting plate. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] The utility model provides Figure 1 and Figure 2 The ink scraping device of a printing machine shown in the figure comprises an equipment box 1, a printing mechanism is arranged inside the equipment box 1, and the printing mechanism comprises an ink cartridge 11, an ink guide roller 12, a printing roller 13, and a pressing roller 14. The ink cartridge 11 is fixedly connected to the bottom of the equipment box 1, and the left and right ends of the ink guide roller 12, the printing roller 13, and the pressing roller 14 are rotatably connected to the inner wall of the equipment box 1. The lower half of the ink guide roller 12 is located on the inner side of the ink cartridge 11, and the printing roller 13 is connected to the surface of the ink guide roller 12. The printing roller 13 and the printing paper 15 are arranged between the pressing roller 14 and the printing roller 13. The ink scraping mechanism is arranged on the side of the printing roller 13. The ink scraping mechanism includes a support frame 2, a positioning rod 21, a supporting spring 22, a mounting seat 24, a scraper 3, a guide plate 31 and a connecting plate 32. The scraper 3 is tightly against the side of the printing roller 13. Positioning grooves 17 are provided on the left and right side surfaces of the equipment box 1. An inspection hole 16 is provided on the right side surface of the equipment box 1 at the upper side of the positioning groove 17.

[0034] Ink is injected into the ink cartridge 11, and printing paper 15 is passed between the printing roller 13 and the pressing roller 14. During use, the ink guide roller 12 rotates to transfer the ink in the ink cartridge 11 to the inside of the printing roller 13. At this time, the printing roller 13 and the pressing roller 14 cooperate to print the surface of the printing paper 15.

[0035] At the same time, during the printing process, the support spring 22 pushes the mounting seat 24 toward the front side, so that the mounting seat 24 pushes the scraper 3 toward the front side, and the front end of the scraper 3 is tightly against the surface of the printing roller 13. Then, during the rotation of the printing roller 13, the scraper 3 continuously scrapes the ink on the surface of the printing roller 13, thereby maintaining the uniformity of the ink on the surface of the printing roller 13 and effectively improving the printing quality.

[0036] See also Figure 3 and Figure 4 The support frame 2 is fixedly connected to the inner wall of the equipment box 1 near the rear side, the positioning rod 21 is slidably connected to the support frame 2, the mounting seat 24 is fixedly connected to the front end of the positioning rod 21, and the rear end of the positioning rod 21 is fixedly connected with a locking block 23, the support spring 22 is sleeved on the surface of the positioning rod 21, and the front and rear ends of the support spring 22 are respectively fixedly connected to the mounting seat 24 and the surface of the support frame 2, a connecting groove 25 is opened on the front side surface of the mounting seat 24, and the rear side of the scraper 3 is fixedly connected with a connecting plate 32, the connecting plate 32 is slidably connected to the connecting groove 25, and the guide plate 31 is fixedly connected to the lower surface of the scraper 3.

[0037] Specifically, since the support spring 22 has a certain elasticity, the support spring 22 pushes the mounting seat 24 to the front. At this time, the positioning block 26 slides forward on the inner side of the positioning groove 17, and the positioning rod 21 slides forward on the inner side of the support frame 2 to support and position the support spring 22. During the forward movement of the mounting seat 24, the front end of the scraper 3 is tightly pressed against the surface of the printing roller 13. At the same time, after the scraper 3 scrapes off the ink, the ink flows downward along the inclined guide plate 31 to avoid splashing of the scraped ink, and slides along the tray to the inside of the ink cartridge 11 for reuse.

[0038] See also Figure 4 and Figure 5 A positioning block 26 is fixedly connected to the lower surface of the mounting seat 24, and the left and right ends of the positioning block 26 are slidably connected to the positioning grooves 17 on the left and right sides respectively. A contact plate 27 is fixedly connected to the front side of the positioning block 26, and a slot is provided inside the abutment plate 27 near the right end. A block 28 is slidably connected inside the slot, and a pressing block 29 is fixedly connected to the lower end of the block 28. Slide plates 210 are fixedly connected to the left and right sides of the block 28, and slide grooves 211 are provided on the inner walls of the left and right sides of the slot. The slide plate 210 is slidably connected to the slide groove 211, and a limiting spring 212 is fixedly connected to the inner bottom wall of the slide groove 211, and the upper end of the limiting spring 212 is fixedly connected to the lower surface of the slide plate 210.

[0039] In addition, when the scraper 3 is severely worn, the pressing block 29 is pressed downward. At this time, the pressing block 29 retracts the card block 28 into the inside of the card slot, and then the scraper 3 is pulled outward, and then the new scraper 3 rear side connecting plate 32 is inserted into the inside of the connecting slot 25, and then the scraper 3 is pushed backward. When the connecting plate 32 is completely inserted into the inside of the connecting slot 25, the limit spring 212 pushes the slide plate 210 upward, and then pushes the card block 28 upward, so as to clamp and position the front end of the scraper 3, thereby improving the stability of the scraper 3 during use.

[0040] The working principle of the utility model is as follows: the mounting seat 24 is pushed forward by the supporting spring 22, and then the scraper 3 is pushed forward, so that the scraper 3 is always in contact with the surface of the printing roller 13, thereby effectively scraping off the ink on the surface of the printing roller 13, avoiding a large gap between the scraper and the printing roller, and eating up the uniformity of the ink on the surface of the printing roller 13, thereby improving the printing quality.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An ink scraping device for a printing press, comprising a device housing (1), characterized in that: A printing mechanism is arranged inside the device housing (1), the printing mechanism comprising an ink cartridge (11), an ink guide roller (12), a printing roller (13), and a pressing roller (14); printing paper (15) is arranged between the pressing roller (14) and the printing roller (13); an ink scraping mechanism is arranged on the side of the printing roller (13); the ink scraping mechanism comprises a support frame (2), a positioning rod (21), a supporting spring (22), a mounting seat (24), a scraper (3), a guide plate (31), and a connecting plate (32); the scraper (3) is tightly abutted against the side of the printing roller (13); positioning grooves (17) are provided on both left and right side surfaces of the device housing (1); and an inspection hole (16) is provided on the right side surface of the device housing (1) at a position above the positioning groove (17).

2. The ink scraping device of a printing press according to claim 1, characterized in that: The ink cartridge (11) is fixedly connected to the bottom of the device housing (1), and the left and right ends of the ink guide roller (12), the printing roller (13) and the pressing roller (14) are rotatably connected to the inner wall of the device housing (1).

3. The ink scraping device of a printing press according to claim 2, characterized in that: The lower half of the ink guide roller (12) is located inside the ink cartridge (11), and the printing roller (13) abuts against the surface of the ink guide roller (12).

4. The ink scraping device of a printing press according to claim 1, characterized in that: The support frame (2) is fixedly connected to the inner wall of the equipment box (1) near the rear side, the positioning rod (21) is slidably connected to the support frame (2), the mounting seat (24) is fixedly connected to the front end of the positioning rod (21), and the rear end of the positioning rod (21) is fixedly connected with a locking block (23).

5. The ink scraping device of a printing press according to claim 4, characterized in that: The support spring (22) is sleeved on the surface of the positioning rod (21), and the front and rear ends of the support spring (22) are respectively fixedly connected to the surface of the mounting seat (24) and the support frame (2).

6. The ink scraping device of a printing press according to claim 5, characterized in that: A connecting groove (25) is formed on the front surface of the mounting seat (24), a connecting plate (32) is fixedly connected to the rear side of the scraper (3), the connecting plate (32) is slidably connected to the connecting groove (25), and the guide plate (31) is fixedly connected to the lower surface of the scraper (3).

7. The ink scraping device of a printing press according to claim 1, characterized in that: A positioning block (26) is fixedly connected to the lower surface of the mounting seat (24), the left and right ends of the positioning block (26) are slidably connected to the positioning grooves (17) on the left and right sides respectively, and the front side of the positioning block (26) is fixedly connected to an abutment plate (27).

8. The ink scraping device of a printing press according to claim 7, characterized in that: A slot is provided inside the abutting plate (27) near the right end, a slot is slidably connected to a block (28) inside the slot, a pressing block (29) is fixedly connected to the lower end of the block (28), a slide plate (210) is fixedly connected to the left and right sides of the block (28), a slide groove (211) is provided on the inner walls of the left and right sides of the slot, the slide plate (210) is slidably connected to the slide groove (211), a limit spring (212) is fixedly connected to the inner bottom wall of the slide groove (211), and the upper end of the limit spring (212) is fixedly connected to the lower surface of the slide plate (210).

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