Automatic angle adjustment device for scraper of printing machine

Abstract

The utility model discloses an automatic angle adjustment device for a scraper of a printing machine, comprising a mounting plate, a scraper body, a first bracket and a second bracket. The utility model provides a hydraulic rod, a toothed plate and a gear, and by starting the hydraulic rod, the output end of the hydraulic rod can drive the toothed plate to move forward, and the toothed plate can drive the gear to rotate when moving forward, and the rotation of the gear can drive the scraper body to rotate, and the self-locking function of the hydraulic rod can be used to prevent the scraper body from moving when in use, and solves the problem that after the angle of the scraper body is adjusted, a fixed knob needs to be used to press and limit the threaded shaft scraper, and the fixing effect of the press and limit is not good, and when the scraper body scrapes ink on the printing plate, the force generated between the scraper body and the printing plate is easy to cause the scraper body to slightly deviate, and long-term use will cause the ink uniformity of the scraper body scraped on the printing plate to decrease, affecting the use.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to an automatic angle adjustment device for a scraper of a printing machine. Background Art

[0002] The scraper device is one of the core components of the flexographic printing machine. It is mainly composed of two supports, a sliding seat slidable on the two supports, and scraper frames installed on the slides at both ends. The scraper presses the anilox roller through a copper sleeve installed on the slide on a reciprocating shaft. There is also an eccentric shaft device that can drive the scraper frame to reciprocate left and right. It has a complex structure, and the installation and use adjustments are not smooth. It cannot automatically maintain a stable pressure and may even get stuck.

[0003] For example, publication number CN219338968U discloses a printing machine scraper structure, including a placement rod, an adjustment mechanism is arranged inside the placement rod, a lifting mechanism is arranged below the placement rod, the number of the placement rods is two, a slide groove is provided inside one side of the two placement rods, a threaded shaft is provided in the middle of the slide groove, a scraper body is fixedly connected to the inside of the threaded shaft, and a fixed knob is provided on one side of the outer surface of the threaded shaft. The utility model uses the slide groove provided inside the placement rod, the slide groove runs through the inside of the placement rod, the threaded shaft runs through the inside of the slide groove, and the threaded shaft can rotate inside the slide groove, the scraper body can rotate between the two placement rods through the threaded shafts on both sides, and the fixed knob performs threaded rotation on the outer surface of the threaded shaft, so as to facilitate the operator to adjust the scraper at different angles.

[0004] Based on the search of patent numbers and combined with the deficiencies in the prior art, it is found that:

[0005] Although this printing machine scraper structure makes it convenient for the operator to adjust the scraper at different angles, when using it, since a fixed knob needs to be used to tighten and limit the threaded shaft scraper after the angle of the scraper body is adjusted, the fixing effect of the tightening and limiting is not good. When the scraper body is scraping ink on the printing plate, the force generated between the scraper body and the printing plate can easily cause a slight deviation of the scraper body. Long-term use will cause the uniformity of the ink scraped on the printing plate by the scraper body to decrease, affecting the use. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide an automatic angle adjustment device for the scraper of a printing machine, which has the advantage of facilitating the adjustment and positioning of the scraper body, and solves the problem that after the angle of the scraper body is adjusted, a fixed knob needs to be used to tighten and limit the threaded shaft scraper, and the fixing effect of the tightening and limiting is not good. When the scraper body scrapes ink on the printing plate, the force generated between the scraper body and the printing plate can easily cause a slight deviation of the scraper body. Long-term use will cause the uniformity of the ink scraped on the printing plate by the scraper body to decrease, affecting the use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic angle adjustment device for a printing machine scraper, comprising a mounting plate, a scraper body, a first bracket and a second bracket, the bottom of the first bracket being fixedly connected to the right side of the top of the mounting plate, the bottom of the second bracket being movably connected to the left side of the top of the mounting plate, the scraper body being located on the front side of the top of the mounting plate, a hydraulic rod being fixedly installed on the rear side of the inner wall of the first bracket, the model of the hydraulic rod being 320 / 90, a gear being fixedly connected to the piston end of the hydraulic rod, a gear being arranged on the right side of the scraper body, the bottom of the gear plate being meshed with the surface of the gear, a connecting assembly being fixedly connected to the front side of the right side of the first bracket, and a guide assembly being provided on the top of the gear plate.

[0008] As a preferred embodiment of the utility model, the connecting assembly includes a fixed plate, a transmission rod is fixedly connected to the inner wall of the gear, side plates are provided on the left and right sides of the scraper body, the other end of the transmission rod passes through the fixed plate and the first bracket in sequence and is fixedly connected to the side of the side plate close to the first bracket, and the transmission rod is movably connected to the fixed plate and the first bracket.

[0009] As a preferred embodiment of the utility model, the guide assembly includes a guide groove, the top of the right side of the fixed plate is movably connected to a guide wheel through an axle pin, and the surface of the guide wheel is slidably connected to the inner wall of the guide groove.

[0010] As a preferred embodiment of the utility model, a cross plate is fixedly connected to the left and right sides of the scraper body, a slot is provided on the inner side of the side plate, and the surface of the cross plate is snap-fitted with the inner wall of the slot.

[0011] As a preferred embodiment of the utility model, a connecting pin is fixedly connected to one side of the side panel close to the second bracket, the other end of the connecting pin passes through the second bracket and extends to the left side of the second bracket, the connecting pin is movably connected to the second bracket, and a limiting ring is fixedly connected to the left side of the connecting pin surface.

[0012] As a preferred embodiment of the present invention, sliders are fixedly connected to both sides of the bottom of the first bracket, two slide grooves are opened on the right side of the top of the mounting plate, and the surface of the slider is slidably connected to the inner wall of the slide groove.

[0013] As a preferred embodiment of the present invention, the front and rear sides of the right bottom of the first bracket are fixedly connected to support plates, and a fixing bolt is provided on the top of the support plate. The end of the fixing bolt close to the mounting plate successively penetrates the support plate and the mounting plate and extends to the interior of the mounting plate, and the fixing bolt is threadedly connected to the support plate and the mounting plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides a hydraulic rod, a toothed plate and a gear. By starting the hydraulic rod, the output end of the hydraulic rod can drive the toothed plate to move forward. The toothed plate moving forward can drive the gear to rotate. The rotation of the gear can drive the scraper body to rotate, so that the angle of the scraper body can be conveniently adjusted. The self-locking function of the hydraulic rod can be used to prevent the scraper body from moving during use. The problem that a fixed knob needs to be used to tighten and limit the threaded shaft scraper after the angle of the scraper body is adjusted, and the fixing effect of the tightening and limiting is not good, and the force generated between the scraper body and the printing plate when scraping ink on the printing plate is likely to cause a slight deviation of the scraper body. Long-term use will cause the uniformity of the ink scraped on the printing plate by the scraper body to decrease, affecting the use, and achieves the effect of facilitating the adjustment and positioning of the scraper body.

[0016] 2. The utility model sets a connecting component, so that the fixed plate can movably limit the transmission rod, the movement of the tooth plate can drive the gear to rotate, the rotation of the gear can drive the transmission rod to rotate, the rotation of the transmission rod can drive the side plate to rotate, and the rotation of the side plate can drive the scraper body to rotate.

[0017] 3. The utility model sets a guide assembly, and the guide groove can limit the guide wheel on the left side, and the opposite guide wheel can limit the tooth plate on the left and right, thereby improving the stability of the tooth plate movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the utility model from another viewing angle;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the three-dimensional structure at A in the middle;

[0021] Figure 4 It is a schematic diagram of the three-dimensional exploded structure of the scraper body and the side plate of the utility model.

[0022] In the figure: 1. mounting plate; 2. scraper body; 3. first bracket; 4. second bracket; 5. hydraulic rod; 6. tooth plate; 7. gear; 8. connecting assembly; 81. fixing plate; 82. transmission rod; 83. side plate; 9. guide assembly; 91. guide groove; 92. guide wheel; 10. cross plate; 11. slot; 12. connecting pin; 13. limiting ring; 14. slider; 15. slide groove; 16. support plate; 17. fixing bolt. 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 in 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 Figures 1 to 4 As shown, the automatic angle adjustment device for the scraper of a printing press provided by the utility model comprises a mounting plate 1, a scraper body 2, a first bracket 3 and a second bracket 4, the bottom of the first bracket 3 is fixedly connected to the right side of the top of the mounting plate 1, the bottom of the second bracket 4 is movably connected to the left side of the top of the mounting plate 1, the scraper body 2 is located at the front side of the top of the mounting plate 1, a hydraulic rod 5 is fixedly installed on the rear side of the inner wall of the first bracket 3, the model of the hydraulic rod 5 is 320 / 90, and a gear plate 6 is fixedly connected to the piston end of the hydraulic rod 5, a gear 7 is arranged on the right side of the scraper body 2, the bottom of the gear plate 6 is meshed with the surface of the gear 7, a connecting component 8 is fixedly connected to the front side of the right side of the first bracket 3, and a guide component 9 is provided on the top of the gear plate 6.

[0025] refer to Figure 2 and Figure 3 The connecting assembly 8 includes a fixed plate 81, a transmission rod 82 is fixedly connected to the inner wall of the gear 7, side plates 83 are provided on the left and right sides of the scraper body 2, the other end of the transmission rod 82 passes through the fixed plate 81 and the first bracket 3 in sequence and is fixedly connected to the side of the side plate 83 close to the first bracket 3, and the transmission rod 82 is movably connected to the fixed plate 81 and the first bracket 3.

[0026] As a technical optimization solution of the utility model, by setting the connecting component 8, the fixed plate 81 can movably limit the transmission rod 82, the movement of the tooth plate 6 can drive the gear 7 to rotate, the rotation of the gear 7 can drive the transmission rod 82 to rotate, the rotation of the transmission rod 82 can drive the side plate 83 to rotate, and the rotation of the side plate 83 can drive the scraper body 2 to rotate.

[0027] refer to Figure 3The guide assembly 9 includes a guide groove 91 , and the top of the right side of the fixed plate 81 is movably connected with a guide wheel 92 through an axle pin, and the surface of the guide wheel 92 is slidably connected to the inner wall of the guide groove 91 .

[0028] As a technical optimization solution of the utility model, by setting the guide assembly 9, the guide groove 91 can limit the guide wheel 92 on the left side, and conversely the guide wheel 92 can limit the tooth plate 6 on the left and right, thereby improving the stability of the movement of the tooth plate 6.

[0029] refer to Figure 4 A cross plate 10 is fixedly connected to the left and right sides of the scraper body 2 , and a slot 11 is provided on the inner side of the side plate 83 , and the surface of the cross plate 10 is engaged with the inner wall of the slot 11 .

[0030] As a technical optimization solution of the utility model, by setting a cross plate 10 and a slot 11, the slot 11 can limit the cross plate 10 and the scraper body 2 up and down, front and back, and the two side plates 83 can limit the scraper body 2 left and right, thereby preventing the scraper body 2 from moving during operation and facilitating the user to disassemble the scraper body 2.

[0031] refer to Figure 2 A connecting pin 12 is fixedly connected to one side of the side plate 83 close to the second bracket 4. The other end of the connecting pin 12 passes through the second bracket 4 and extends to the left side of the second bracket 4. The connecting pin 12 is movably connected to the second bracket 4. A limiting ring 13 is fixedly connected to the left side of the surface of the connecting pin 12.

[0032] As a technical optimization solution of the utility model, by setting a connecting pin 12 and a limiting ring 13, the second bracket 4 can limit the connecting pin 12 and the side plate 83 on the left side of the scraper body 2 up and down, front and back, so as to provide stable support for the scraper body 2, and the limiting ring 13 can prevent the connecting pin 12 from separating from the second bracket 4.

[0033] refer to Figure 2 Slide blocks 14 are fixedly connected to both sides of the bottom of the first bracket 3 , and two slide grooves 15 are opened on the right side of the top of the mounting plate 1 , and the surface of the slide block 14 is slidably connected to the inner wall of the slide groove 15 .

[0034] As a technical optimization solution of the utility model, by setting a slider 14 and a slide groove 15, the movement of the first bracket 3 can drive the slider 14 to slide inside the slide groove 15, and the slide groove 15 can limit the slider 14 and the first bracket 3 front and back and up and down, thereby improving the stability of the movement of the first bracket 3.

[0035] refer to Figure 2The front and rear sides of the right bottom of the first bracket 3 are fixedly connected with a support plate 16, and a fixing bolt 17 is arranged on the top of the support plate 16. The end of the fixing bolt 17 close to the mounting plate 1 passes through the support plate 16 and the mounting plate 1 in sequence and extends to the inside of the mounting plate 1. The fixing bolt 17 is threadedly connected with the support plate 16 and the mounting plate 1.

[0036] As a technical optimization solution of the utility model, by providing a support plate 16 and a fixing bolt 17, the fixing bolt 17 is used to connect the support plate 16 and the mounting plate 1, so that the first support plate 16 can be fixed and limited, making it convenient for the user to move and fix the first bracket 3.

[0037] The working principle and use process of the utility model are as follows: during use, when it is necessary to adjust the angle of the scraper body 2, first start the hydraulic rod 5 so that the piston end of the hydraulic rod 5 drives the toothed plate 6 to move forward, and the toothed plate 6 moves forward to drive the gear 7 to rotate, and the rotation of the gear 7 can drive the transmission rod 82 to rotate, and the rotation of the transmission rod 82 can drive the side plate 83 on the right side of the scraper body 2 and the scraper body 2 to rotate, so that the user can adjust the angle of the scraper body 2. The hydraulic rod 5 uses a self-locking hydraulic rod 5 with a model of 320 / 90, so as to avoid the scraper body 2 from moving in subsequent work. When it is necessary to clean the scraper body 2, first rotate the fixing bolt 17 to separate the fixing bolt 17 from the support plate 16 and the mounting plate 1, and then the user moves the first bracket 3 to make the first bracket 3 away from the scraper body 2. At this time, the user moves the scraper body 2 to make the cross plate 10 disengage from the inside of the card slot 11, and the scraper body 2 can be disassembled and cleaned.

[0038] In summary, the automatic angle adjustment device for the scraper of the printing press is provided with a hydraulic rod 5, a tooth plate 6 and a gear 7. By starting the hydraulic rod 5, the output end of the hydraulic rod 5 can drive the tooth plate 6 to move forward. The tooth plate 6 moving forward can drive the gear 7 to rotate. The rotation of the gear 7 can drive the scraper body 2 to rotate, so that the angle of the scraper body 2 can be easily adjusted. The self-locking function of the hydraulic rod 5 can be used to prevent the scraper body 2 from moving during use, and the problem that a fixed knob needs to be used to tighten and limit the threaded shaft scraper after the angle of the scraper body is adjusted, and the fixing effect of the tightening and limiting is not good. When the scraper body scrapes ink on the printing plate, the force generated between the scraper body and the printing plate is likely to cause a slight deviation of the scraper body. Long-term use will lead to a decrease in the uniformity of the ink scraped on the printing plate by the scraper body, affecting the use.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although the 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 device for automatically adjusting the angle of a scraper of a printing press, comprising a mounting plate (1), a scraper body (2), a first bracket (3) and a second bracket (4), characterized in that: The bottom of the first bracket (3) is fixedly connected to the right side of the top of the mounting plate (1), the bottom of the second bracket (4) is movably connected to the left side of the top of the mounting plate (1), the scraper body (2) is located at the front side of the top of the mounting plate (1), a hydraulic rod (5) is fixedly installed on the rear side of the inner wall of the first bracket (3), the model of the hydraulic rod (5) is 320 / 90, the piston end of the hydraulic rod (5) is fixedly connected to a toothed plate (6), a gear (7) is arranged on the right side of the scraper body (2), the bottom of the toothed plate (6) is meshed with the surface of the gear (7), a connecting component (8) is fixedly connected to the front side of the right side of the first bracket (3), and a guide component (9) is provided on the top of the toothed plate (6).

2. The automatic angle adjustment device for scraper of a printing press according to claim 1, characterized in that: The connecting assembly (8) comprises a fixed plate (81), a transmission rod (82) is fixedly connected to the inner wall of the gear (7), side plates (83) are arranged on the left and right sides of the scraper body (2), the other end of the transmission rod (82) passes through the fixed plate (81) and the first bracket (3) in sequence and is fixedly connected to a side of the side plate (83) close to the first bracket (3), and the transmission rod (82) is movably connected to the fixed plate (81) and the first bracket (3).

3. The automatic angle adjustment device for scraper of a printing press according to claim 2, characterized in that: The guide assembly (9) comprises a guide groove (91), and the top of the right side of the fixed plate (81) is movably connected to a guide wheel (92) via an axle pin, and the surface of the guide wheel (92) is slidably connected to the inner wall of the guide groove (91).

4. The automatic angle adjustment device for scraper of a printing press according to claim 2, characterized in that: The left and right sides of the scraper body (2) are fixedly connected with a cross plate (10), the inner side of the side plate (83) is provided with a clamping groove (11), and the surface of the cross plate (10) is clamped and matched with the inner wall of the clamping groove (11).

5. The automatic angle adjustment device for scraper of a printing press according to claim 2, characterized in that: A connecting pin (12) is fixedly connected to one side of the side plate (83) close to the second bracket (4); the other end of the connecting pin (12) passes through the second bracket (4) and extends to the left side of the second bracket (4); the connecting pin (12) is movably connected to the second bracket (4); and a limiting ring (13) is fixedly connected to the left side of the surface of the connecting pin (12).

6. The automatic angle adjustment device for scraper of a printing press according to claim 1, characterized in that: Slide blocks (14) are fixedly connected to both sides of the bottom of the first bracket (3), and two slide grooves (15) are provided on the right side of the top of the mounting plate (1), and the surface of the slide block (14) is slidably connected to the inner wall of the slide groove (15).

7. The automatic angle adjustment device for scraper of a printing press according to claim 1, characterized in that: The front and rear sides of the bottom right side of the first bracket (3) are fixedly connected to a support plate (16), and a fixing bolt (17) is arranged on the top of the support plate (16). The end of the fixing bolt (17) close to the mounting plate (1) passes through the support plate (16) and the mounting plate (1) in sequence and extends to the inside of the mounting plate (1). The fixing bolt (17) is threadedly connected to the support plate (16) and the mounting plate (1).

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