Scraper pressure control device and printing machine

Abstract

The utility model relates to the technical field of printing machines, and particularly provides a scraper pressure control device and a printing machine. According to the pressure adjusting seat structure, one end of the manual adjusting bolt is rotationally connected with a clamping block clamped with the operation gear. The operating gear is rotated to drive the threaded column connected with the operating gear to rotate, so that the threaded sleeve on the outer side is controlled to drive the scraper body to move, and meanwhile, a reset spring is matched for use, so that the effect of changing the pressure applied to a non-printing area by the scraper body is achieved; according to the pressure control device for the scraper of the printing machine, the clamping block rotationally connected with the pressure control device is clamped with the operation gear, the phenomenon of wire retreating is avoided, and therefore the firmness of the scraper body after the position is adjusted can be guaranteed, and the problem that although the scraper structure adopted by the pressure control device for the scraper of the printing machine can guarantee that the scraper has certain pressure under the action of the spring is solved. However, the pressure is difficult to control, so that the use effect is poor.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to a scraper pressure control device and a printing machine. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding (including folding). Its principle is to first make the text or image to be printed into a printing plate, install it on the printing press, and then apply ink to the place where the text and image are on the printing plate manually or by the printing press, and then directly or indirectly transfer it to paper or other substrates (such as textiles, metal plates). The role of the scraper: scrape off the excess ink in the non-printing area, and transfer the ink in the printing area to the film through the scraper. The printing process must be mastered and used well.

[0003] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects:

[0004] For the scraper pressure control device of the printing press, although the scraper structure adopted can ensure that the scraper has a certain pressure under the action of the spring, its pressure is difficult to control, resulting in poor use effect. Therefore, it is necessary to provide a scraper pressure control device to solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that for a scraper pressure control device for a printing machine, although the scraper structure it adopts can ensure that the scraper has a certain pressure under the action of a spring, the pressure is difficult to control, resulting in poor use effect. In view of the above-mentioned defects of the prior art, a scraper pressure control device is provided.

[0006] In order to achieve the above object, the technical solution of the utility model is: a scraper pressure control device, comprising:

[0007] The outer shell has a U-shaped structure;

[0008] The pressure regulating seat structure comprises a threaded column screwed to the outer shell, a threaded sleeve is screwed to the outer side of the threaded column, a movable seat is fixedly connected to the upper end of the threaded sleeve, a mounting groove is provided on the upper surface of the movable seat, a plurality of reset springs are evenly fixedly installed at the bottom of the inner cavity of the mounting groove, and the upper ends of the plurality of reset springs are fixedly connected to the connecting seat;

[0009] The limiting structure includes an operating gear fixedly mounted on the outside of the threaded column, a rectangular block fixedly mounted on the bottom of the outer shell, a hand-adjusting bolt threadedly connected to the inside of the rectangular block, and one end of the hand-adjusting bolt is rotatably connected to a clamping block engaged with the operating gear;

[0010] The scraper structure is used to scrape off the excess ink on the printing press;

[0011] The fixing structure is used for installing and fixing the control device.

[0012] Preferably, the upper surface of the fixing block is in contact with the outer shell, and one end of the hand-adjustable bolt is connected to the fixing block via a bearing.

[0013] Preferably, the fixing structure comprises: two fixing blocks, each of which is installed and fixed on the bottom of the outer shell; and four fixing holes, each of which is opened on the front surface of the fixing block.

[0014] Preferably, the tooth gap of the operating gear is 0.15 mm, and the operating gear is located behind the rectangular block.

[0015] Preferably, the scraper structure comprises: a mounting plate, which is mounted and fixed on the upper surface of the connecting seat; and a scraper body, which is arranged on the top of the mounting plate.

[0016] Preferably, the scraper structure further comprises: a connecting groove, which is provided on the front surface of the mounting plate; and a connecting plate, which is slidably connected to the connecting groove.

[0017] Preferably, the scraper structure also includes: a groove, which is opened on the front and rear surfaces of the mounting plate, and the groove is located below the connecting groove; a rotating shaft, which is rotatably connected to the inner side of the groove; a stopper, which is sleeved on the outer side of the rotating shaft; a torsion spring, which is fixedly installed between the stopper and the mounting plate, and the torsion spring is located on the outer side of the rotating shaft.

[0018] Preferably, the lower surface of the mounting plate is symmetrically fixed with limit frames, and each of the limit frames is located outside the outer shell.

[0019] The utility model also provides a printing machine, comprising the scraper pressure control device.

[0020] Compared with the related art, the scraper pressure control device provided by the utility model has the following beneficial effects:

[0021] The utility model provides a scraper pressure control device, which drives a threaded column connected to the scraper to rotate by rotating an operating gear, thereby controlling the outer threaded sleeve to drive the scraper body to move, and cooperates with a reset spring to achieve the effect of changing the pressure applied by the scraper body on a non-printing area, and by rotating a hand-adjusting bolt, a clamping block rotatably connected to the scraper is engaged with the operating gear to avoid wire withdrawal, thereby ensuring the firmness of the scraper body after the position is adjusted, and solving the technical problem that, for a scraper pressure control device for a printing press, the scraper structure adopted by the scraper structure can ensure that the scraper has a certain pressure under the action of the spring, but the pressure is difficult to control, resulting in poor use effect.

[0022] The utility model provides a scraper pressure control device, wherein a connection groove is provided on the top of a mounting plate, and a scraper body is connected to the mounting plate by means of a connection plate and a connection groove, thereby facilitating installation of the scraper body and improving installation efficiency.

[0023] The utility model provides a scraper pressure control device, which is provided with a stopper, and utilizes the elastic deformation ability of the torsion spring to limit the position of the connecting plate through the stopper connected by the rotating shaft, thereby facilitating the fixing of the connecting plate, enhancing the firmness of the installation of the scraper body, and also facilitating the replacement of the scraper body after it is severely worn. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of a preferred embodiment of a scraper pressure control device provided by the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the scraper body and the mounting plate of the utility model;

[0026] Figure 3 It is a left-side structural schematic diagram of the connection between the stopper and the mounting plate of the utility model;

[0027] Figure 4 It is an overall three-dimensional diagram of the utility model;

[0028] Figure 5 It is a partial left-side structural schematic diagram of the utility model.

[0029] Numbers in the figure: 1. scraper body; 2. limit frame; 3. mounting plate; 4. movable seat; 5. fixing block; 6. clamping block; 7. rectangular block; 8. fixing hole; 9. outer shell; 10. rotating shaft; 11. stopper; 12. connecting groove; 13. connecting plate; 14. torsion spring; 15. groove; 16. operating gear; 17. threaded column; 18. hand-adjusting bolt; 19. threaded sleeve; 20. connecting seat; 21. reset spring; 22. mounting groove. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings show typical embodiments of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-5 As shown, a scraper pressure control device of the utility model comprises: an outer shell 9, which is a U-shaped structure; a pressure regulating seat structure, comprising a threaded column 17 screwed to the outer shell 9, a threaded sleeve 19 screwed to the outer side of the threaded column 17, a movable seat 4 fixedly connected to the upper end of the threaded sleeve 19, a mounting groove 22 is provided on the upper surface of the movable seat 4, a plurality of return springs 21 are evenly fixedly installed on the bottom of the inner cavity of the mounting groove 22, and a connecting seat 20 is fixedly connected to the upper ends of the plurality of return springs 21; a limiting structure, comprising an operating gear 16 fixedly installed on the outer side of the threaded column 17, a rectangular block 7 is fixedly installed on the bottom of the outer shell 9, a hand-adjusting bolt 18 is screwed to the inside of the rectangular block 7, and one end of the hand-adjusting bolt 18 is rotatably connected to a fixing block 6 engaged with the operating gear 16; a scraper structure, used to scrape off excess ink on the printing press; a fixing structure, used to install and fix the control device.

[0033] Furthermore, the upper surface of the fixing block 6 is in contact with the outer shell 9 , and one end of the manual adjustment bolt 18 is connected to the fixing block 6 via a bearing.

[0034] Furthermore, the fixing structure includes: two fixing blocks 5 , each of which is installed and fixed at the bottom of the outer shell 9 ; and four fixing holes 8 , each of which is opened on the front surface of the fixing block 5 .

[0035] Furthermore, the tooth gap of the operating gear 16 is 0.15 mm, which improves the sensitivity of the engagement between the clamping block 6 and the operating gear 16 , and the operating gear 16 is located behind the rectangular block 7 .

[0036] During implementation, by rotating the operating gear 16, the threaded column 17 connected to it is driven to rotate, so as to control the outer threaded sleeve 19 to drive the scraper body 1 to move, and at the same time cooperate with the reset spring 21 to achieve the effect of changing the pressure applied by the scraper body 1 on the non-printing area, and by rotating the hand-adjusting bolt 18, the fixing block 6 rotatably connected to it is engaged with the operating gear 16 to avoid the wire backing phenomenon, thereby ensuring the firmness of the scraper body 1 after the position is adjusted, and solving the technical problem that the scraper pressure control device of the printing press adopts a scraper structure that can ensure that the scraper has a certain pressure under the action of the spring, but the pressure is difficult to control, resulting in poor use effect.

[0037] Embodiment 2:

[0038] like Figure 2-3 As shown, based on the first embodiment, the utility model provides a technical solution: the scraper structure includes: a mounting plate 3, which is fixedly installed on the upper surface of the connecting seat 20; a scraper body 1, which is arranged on the top of the mounting plate 3, and the scraper structure also includes: a connecting groove 12, which is opened on the front surface of the mounting plate 3; and a connecting plate 13, which is slidably connected to the connecting groove 12.

[0039] In practice, a connection groove 12 is provided on the top of the mounting plate 3, and the scraper body 1 is connected to the mounting plate 3 by means of a connection plate 13 and a connection groove 12, thereby facilitating the installation of the scraper body 1 and improving the installation efficiency.

[0040] Embodiment three:

[0041] like Figure 2-3 As shown, on the basis of embodiment 1, the utility model provides a technical solution: the scraper structure also includes: a groove 15, which is opened on the front and rear surfaces of the mounting plate 3, and the groove 15 is located below the connecting groove 12; a rotating shaft 10, which is rotatably connected to the inner side of the groove 15; a stopper 11, and the stopper 11 is sleeved on the outer side of the rotating shaft 10; a torsion spring 14, which is fixedly installed between the stopper 11 and the mounting plate 3, and the torsion spring 14 is located on the outer side of the rotating shaft 10, and the lower surface of the mounting plate 3 is symmetrically fixedly installed with a limit frame 2, and each limit frame 2 is located on the outer side of the outer shell 9.

[0042] During implementation, a stopper 11 is provided, and the elastic deformation ability of the torsion spring 14 is utilized to limit the position of the connecting plate 13 through the stopper 11 connected through the rotating shaft 10, thereby facilitating the fixing of the connecting plate 13, enhancing the firmness of the installation of the scraper body 1, and also facilitating the replacement of the scraper body 1 after severe wear.

[0043] The utility model also provides a printing machine, comprising the scraper pressure control device.

[0044] Working principle:

[0045] When installing the scraper body 1, the present technical solution first rotates one of the blocks 11 by 90°, then connects the scraper body 1 to the mounting plate 3 by means of the connecting plate 13 and the connecting groove 12, and finally releases the block 11. At this time, under the elastic force of the torsion spring 14, the block 11 returns to its original position, restricts the position of the connecting plate 13, and makes the scraper body 1 connected to the mounting plate 3. When the position of the scraper body 1 needs to be adjusted, first rotate the hand-adjusting bolt 18 to separate the clamping block 6 rotatably connected thereto from the operating gear 16, then rotate the operating gear 16 to drive the threaded column 17 connected thereto to rotate, and drive the outer threaded tube 19 to drive the scraper body 1 connected through the movable seat 4, the reset spring 21, the connecting seat 20 and the mounting plate 3 to move, and finally rotate the hand-adjusting bolt 18 to drive the clamping block 6 rotatably connected thereto to engage with the operating gear 16 to avoid the phenomenon of wire withdrawal, and ensure the firmness of the scraper body 1 after the position is adjusted.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scraper pressure control device, characterized in that: include: The outer shell (9) is in a U-shaped structure; A pressure regulating seat structure, comprising a threaded column (17) threadedly connected to an outer shell (9), a threaded sleeve (19) threadedly connected to the outer side of the threaded column (17), a movable seat (4) fixedly connected to the upper end of the threaded sleeve (19), a mounting groove (22) formed on the upper surface of the movable seat (4), a plurality of return springs (21) evenly fixedly installed at the bottom of the inner cavity of the mounting groove (22), and a connection seat (20) fixedly connected to the upper ends of the plurality of return springs (21); The limiting structure comprises an operating gear (16) fixedly mounted on the outside of a threaded column (17); a rectangular block (7) is fixedly mounted on the bottom of the outer shell (9); a hand-adjusting bolt (18) is threadedly connected to the inside of the rectangular block (7); one end of the hand-adjusting bolt (18) is rotatably connected to a clamping block (6) engaged with the operating gear (16); The scraper structure is used to scrape off the excess ink on the printing press; The fixing structure is used for installing and fixing the control device.

2. A scraper pressure control device according to claim 1, characterized in that: The upper surface of the clamping block (6) is in contact with the outer shell (9), and one end of the hand-adjustable bolt (18) is connected to the clamping block (6) via a bearing.

3. A scraper pressure control device according to claim 1, characterized in that: The fixed structure comprises: Two fixing blocks (5) are provided, and each of the fixing blocks (5) is installed and fixed on the bottom of the outer shell (9); There are four fixing holes (8) in total, and each of the fixing holes (8) is opened on the front surface of the fixing block (5).

4. A scraper pressure control device according to claim 1, characterized in that: The tooth gap of the operating gear (16) is 0.15 mm, and the operating gear (16) is located behind the rectangular block (7).

5. The scraper pressure control device according to claim 1, characterized in that: The scraper structure comprises: A mounting plate (3) mounted and fixed on the upper surface of the connecting seat (20); The scraper body (1) is arranged on the top of the mounting plate (3).

6. A scraper pressure control device according to claim 5, characterized in that: The scraper structure also includes: A connecting groove (12) is formed on the front surface of the mounting plate (3); The connecting plate (13) is slidably connected to the connecting groove (12).

7. A scraper pressure control device according to claim 6, characterized in that: The scraper structure also includes: Grooves (15) are formed on the front and rear surfaces of the mounting plate (3), and the grooves (15) are located below the connecting groove (12); A rotating shaft (10) rotatably connected to the inner side of the groove (15); A stopper (11), the stopper (11) is sleeved on the outer side of the rotating shaft (10); The torsion spring (14) is fixedly mounted between the stopper (11) and the mounting plate (3), and the torsion spring (14) is located outside the rotating shaft (10).

8. The scraper pressure control device according to claim 5, characterized in that: The lower surface of the mounting plate (3) is symmetrically fixedly mounted with limit frames (2), and each of the limit frames (2) is located outside the outer shell (9).

9. A printing press, characterized in that: The scraper pressure control device includes the scraper pressure control device according to any one of claims 1-8.

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