Ink color control device for printing machine

Abstract

The utility model relates to an ink color control device for a printing machine, and relates to the technical field of printing machines, the ink color control device comprises a fixed seat, a mounting block and a doctor blade, the mounting block is rotatably connected to the fixed seat, a mounting groove is formed in the mounting block, the doctor blade is slidably connected in the mounting groove, an arc-shaped rod is arranged on the fixed seat, and the arc-shaped rod is connected with the mounting block. The mounting block is provided with an arc-shaped groove corresponding to the arc-shaped block, the arc-shaped rod is slidably connected in the arc-shaped groove, the arc-shaped groove is connected with the mounting groove, the fixed seat is provided with an angle positioning mechanism, and the angle positioning mechanism is used for limiting the rotating angle of the mounting block. A position positioning mechanism is arranged on the mounting block, the position positioning mechanism is used for fixing the doctor blade, an air pipe is arranged on the mounting block, one end of the air pipe is connected with the arc-shaped groove, and the other end of the air pipe is used for being connected with an external air pump. The ink knife has the effect of reducing the operation difficulty when a worker adjusts the position of the ink knife.

Description

Technical Field

[0001] The present application relates to the field of printing press technology, and in particular to an ink color control device for a printing press. 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. The text and images to be printed are made into printing plates, mounted on printing presses, and then ink is applied to the places with text and images on the printing plates manually or by printing presses, and then directly or indirectly transferred to paper or other substrates.

[0003] When the printing press is applying ink, because there is a lot of ink on the substrate and the ink is not evenly attached to the surface of the printing roller, it is easy to cause differences in printing color during inking, which seriously affects the printing quality.

[0004] In some existing ink scraping devices of printing machines, the ink scraper is installed in the mounting groove of the mounting block, and a spring is arranged in the mounting groove. The spring connects the ink scraper to the side wall of the mounting block in the mounting groove, so that the ink scraper is pushed outward by the spring, thereby adjusting the length of the ink scraper extending out of the mounting groove, and then the ink scraper is fixed by inserting a rod into a slot arranged on the ink scraper. When the staff reduces the extended length of the ink scraper, the staff is required to push the ink scraper into the mounting groove. Since the spring will exert a force on the ink scraper, the staff is required to exert a large force on the ink scraper. In addition, since the edge of one end of the ink scraper extending out of the mounting groove is sharp, the operation difficulty of the staff is increased and the staff is easily injured. Utility Model Content

[0005] In order to reduce the difficulty of operation when the staff adjusts the position of the scraper, the present application provides an ink color control device for a printing press.

[0006] The present application provides an ink color control device for a printing press using the following technical solution:

[0007] An ink color control device for a printing press comprises a fixed seat, a mounting block and an ink scraper, wherein the mounting block is rotatably connected to the fixed seat, the mounting block is provided with a mounting groove, the ink scraper is slidably connected in the mounting groove, the fixed seat is provided with an arc rod, the mounting block is provided with an arc groove corresponding to the arc block, the arc rod is slidably connected in the arc groove, the arc groove is connected to the mounting groove, the fixed seat is provided with an angle positioning mechanism, the angle positioning mechanism is used to limit the rotation angle of the mounting block, the mounting block is provided with a position positioning mechanism, the position positioning mechanism is used to fix the ink scraper, the mounting block is provided with an air pipe, one end of the air pipe is connected to the arc groove, and the other end of the air pipe is used to connect to an external air pump.

[0008] By adopting the above technical scheme, utilizing the settings of the angle positioning mechanism, the position positioning mechanism and the air pump, when the angle positioning mechanism fixes the rotation angle of the mounting block, air is sucked into the arc groove by the air pump, thereby adjusting the position of the scraper knife installed in the mounting block; when the position positioning mechanism fixes the ink scraper installed in the mounting block, air is sucked into the arc groove by the air pump, thereby adjusting the rotation angle of the mounting block. This helps to reduce the difficulty of the operator in adjusting the rotation angle and the installation position of the ink scraper knife, thereby avoiding injuries to the operator.

[0009] In a specific feasible implementation scheme, the angle positioning mechanism includes a mounting rod, a sliding rod and a locking piece. The mounting rod is arranged on the fixed seat, and a sliding rod groove is arranged in the mounting rod corresponding to the sliding rod. The sliding rod is slidably connected in the sliding rod groove, and the locking piece is arranged at one end of the mounting rod away from the fixed seat, and one end of the sliding rod passes through the locking piece. The locking piece is used to fix the sliding rod, and the sliding rod is hinged at one end of the sliding rod, and the sliding rod is slidably connected to the fixed seat.

[0010] By adopting the above technical solution and utilizing the settings of the mounting rod, the slide rod and the locking piece, when it is necessary to adjust the rotation angle of the mounting block, after the locking piece locks the slide rod, the slider drives the slide rod to move on the mounting block, and the slide rod slides inside the mounting rod, which can ensure that the angle of the mounting block is locked while avoiding interference of the mounting rod and the slide rod with the rotation of the mounting block when the rotation angle of the mounting block needs to be adjusted.

[0011] In a specific possible implementation scheme, the locking member includes a locking sleeve, an elastic sheet and a locking nut, a plurality of elastic sheets are provided, and the plurality of elastic sheets are arranged at equal intervals on a circumferential portion of the locking sleeve, a locking thread is provided on the locking sleeve, and the locking nut is connected to the locking sleeve by threadably cooperating with the locking thread.

[0012] By adopting the above technical solution and utilizing the settings of the locking sleeve, elastic sheet and locking nut, when the mounting block is rotated to an appropriate angle and the slide bar is moved to an appropriate position, the locking nut and the locking sleeve are threadedly connected, and the locking nut is rotated to squeeze the elastic sheet, thereby squeezing the slide bar through a plurality of elastic sheets to fix the slide bar, which is beneficial to improving the stability of the rotation angle positioning of the mounting block.

[0013] In a specific feasible implementation scheme, the position positioning mechanism includes a positioning pin and a positioning spring, a positioning through hole is provided on the mounting block, the positioning pin is inserted into the positioning through hole, the positioning spring is sleeved on the positioning pin, one end of the positioning spring is connected to the positioning pin, and the other end of the positioning spring is connected to the mounting block, and a positioning groove is provided on the scraper corresponding to the positioning pin.

[0014] By adopting the above technical solution and utilizing the setting of the positioning pin and the positioning spring, when it is necessary to move the position of the scraper installed in the mounting block, the positioning pin is pulled upwards and the scraper can be moved. When it is necessary to fix the scraper, the positioning pin is inserted into the positioning groove provided on the scraper. At the same time, the positioning spring facilitates the detachment of the positioning pin from the positioning groove during the use of the scraper, thereby releasing the positioning of the scraper and affecting the scraping work of the scraper.

[0015] In a specific possible implementation manner, a plurality of positioning grooves are provided, and the plurality of positioning grooves are arranged on the ink scraper at equal intervals along the sliding direction of the ink scraper.

[0016] By adopting the above technical solution and utilizing the provision of a plurality of ink scraping grooves, the ink scraper can be fixed by inserting positioning pins into the plurality of ink scraping grooves, thereby facilitating adjustment of the installation position of the ink scraper.

[0017] In a specific possible implementation manner, a sealing block is connected to one end of the scraper blade disposed in the mounting groove, and the sealing block is slidably connected in the mounting groove and is sealed to the mounting block.

[0018] By adopting the above technical solution and utilizing the setting of the sealing block, which is sealed in the mounting groove through the sealing block, it is avoided that the sealing effect is poor when the position of the scraper is adjusted by sucking air into the arc groove by the cylinder to control the air pressure in the mounting groove, thereby affecting the adjustment of the scraper position.

[0019] In a specific possible implementation manner, a piston disc is provided at one end of the arc-shaped rod away from the fixing block, and the piston disc is slidably connected in the arc-shaped groove and is sealed to the mounting block.

[0020] By adopting the above technical solution and utilizing the setting of the piston disc, which is sealed and connected in the arc groove, it is avoided that the sealing effect is poor when the cylinder is used to suck air into the arc groove to control the air pressure in the arc groove to adjust the rotation angle of the mounting block, thereby affecting the adjustment of the rotation angle of the mounting block.

[0021] In a specific possible implementation mode, the arc center of the arc groove is coaxially arranged with the rotation center of the mounting block.

[0022] By adopting the above technical solution, the arc center of the arc groove is coaxially arranged with the rotation center of the installation block, thereby improving the smoothness of the rotation of the installation block and avoiding interference with the rotation of the installation block.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By using the angle positioning mechanism, the position positioning mechanism and the air pump, when the angle positioning mechanism fixes the rotation angle of the mounting block, the air pump is used to draw air into the arc groove, thereby adjusting the position of the scraper blade installed in the mounting block; when the position positioning mechanism fixes the ink scraper installed in the mounting block, the air pump is used to draw air into the arc groove, thereby adjusting the rotation angle of the mounting block, which is conducive to reducing the difficulty of the operator in adjusting the rotation angle and installation position of the ink scraper, and avoiding injuries to the operator;

[0025] 2. By using the arrangement of the mounting rod, the slide bar and the locking member, when the rotation angle of the mounting block needs to be adjusted, after the locking member locks the slide bar, the slider drives the slide bar to move on the mounting block, and the slide bar slides inside the mounting rod, which can ensure that the angle of the mounting block is locked while avoiding interference of the mounting rod and the slide bar on the rotation of the mounting block when the rotation angle of the mounting block needs to be adjusted;

[0026] 3. By utilizing the positioning pin and positioning spring, when it is necessary to move the position of the scraper installed in the mounting block, pull up the positioning pin and the scraper can move. When it is necessary to fix the scraper, insert the positioning pin into the positioning groove set on the scraper. At the same time, the positioning spring facilitates the detachment of the positioning pin from the positioning groove during the use of the scraper, thereby releasing the positioning of the scraper and affecting the scraping work of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0028] Figure 2 This is a front view of an embodiment of the present application.

[0029] Figure 3 for Figure 2 Cross-sectional view along AA direction.

[0030] Figure 4 for Figure 3 A partial enlarged view of part A.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. fixing seat; 11. arc-shaped rod; 12. piston disc; 2. mounting block; 21. rotating block; 22. arc-shaped groove; 23. mounting groove; 24. slide rail; 25. air pipe; 3. scraper; 31. positioning groove; 32. sealing block; 4. angle positioning mechanism; 41. mounting rod; 42. slide rod; 43. locking piece; 431. locking sleeve; 432. elastic sheet; 433. locking nut; 44. slider; 5. position positioning mechanism; 51. positioning pin; 52. positioning spring. DETAILED DESCRIPTION

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The embodiment of the present application discloses an ink color control device for a printing press.

[0034] like Figures 1 to 3 As shown, the ink color control device for a printing press includes a fixed seat 1, a mounting block 2, an ink scraper 3, an angle positioning mechanism 4 and a position positioning mechanism 5. A rotating groove is provided on the fixed seat 1, and a rotating block 21 is provided on the mounting block 2. The rotating block 21 is preferably provided with a columnar block. The rotating block 21 is rotatably connected in the rotating groove. An arc rod 11 is provided on the fixed seat 1, and an arc groove 22 corresponding to the arc rod 11 is provided on the mounting block 2. The arc rod 11 is slidably connected in the arc groove 22, so that the mounting block 2 is rotatably connected to the fixed seat 1. An angle positioning mechanism 4 is provided on the fixed seat 1, which is used to limit the rotation of the mounting block 2. A mounting groove 23 is provided on the mounting block 2, and the ink scraper 3 is slidably connected in the mounting groove 23. The arc groove 22 is connected to the mounting groove 23, and the arc center of the arc groove 22 is coaxially arranged with the rotation center of the mounting block 2. An air pipe 25 is provided on the mounting block 2, one end of the air pipe 25 is connected to the arc groove 22, and the other end of the air pipe 25 is used to be connected to an external air pump. The position positioning mechanism 5 is provided on the mounting block 2, which is used to limit the movement of the ink scraper 3.

[0035] like Figure 3 and Figure 4 As shown, a sealing block 32 is connected to one end of the mounting block 2 arranged in the mounting groove 23. The shape of the sealing block 32 corresponds to the mounting groove 23. The sealing block 32 is slidably and sealingly connected in the mounting groove 23. The position positioning mechanism 5 includes a positioning pin 51 and a positioning spring 52. A positioning through hole corresponding to the positioning pin 51 is provided on the mounting block 2. The positioning pin 51 is inserted into the positioning through hole. The positioning spring 52 is sleeved on the positioning pin 51. One end of the positioning spring 52 is connected to the positioning pin 51, and the other end of the positioning spring 52 is connected to the mounting block 2. A positioning groove 31 for the positioning pin 51 to be inserted is provided on the ink scraper 3. A plurality of positioning grooves 31 are provided, and the plurality of positioning grooves 31 are arranged on the ink scraper 3 at equal intervals along the sliding direction of the ink scraper 3.

[0036] In this embodiment, a piston disk 12 is provided at one end of the arc rod 11 away from the fixed block, and the piston disk 12 is slidably and sealingly connected in the arc groove 22. The angle positioning mechanism 4 includes a mounting rod 41, a slide rod 42 and a locking member 43. The mounting rod 41 is arranged on the fixed seat 1, and a slide rod groove is provided on the mounting rod 41 corresponding to the slide rod 42. The slide rod 42 is slidably connected in the slide rod groove, and one end of the slide rod 42 is arranged through the mounting rod 41. The locking member 43 includes a locking sleeve 431, an elastic sheet 432 and a locking nut 433. The locking sleeve 431 is arranged at a section of the mounting rod 41, and a plurality of elastic sheets are arranged on the locking sleeve 431. The elastic sheets 432 are arranged at equal intervals on the circumferential part of the locking sleeve 431, the elastic sheets 432 are arranged as arc-shaped sheets, the locking sleeve 431 is provided with a locking thread, the locking nut 433 is connected to the locking sleeve 431 by threadably cooperating with the locking thread, the sliding rod 42 passes through one end of the mounting rod 41 and passes through the locking sleeve 431, the mounting rod 41, the sliding rod 42 and the locking sleeve 431 are arranged coaxially, the sliding rod 42 passes through one end of the mounting rod 41 and is hinged with a sliding block 44, the mounting block 2 is provided with a sliding rail 24 which is perpendicular to the arc center axis of the arc rod 11, and the sliding block 44 is slidably connected to the sliding rail 24.

[0037] The implementation principle of the ink color control device for a printing machine in the embodiment of the present application is as follows: when it is necessary to adjust the length of the ink scraper 3 extending out of the mounting block 2, the locking nut 433 is threadedly matched with the locking sleeve 431, and the locking nut 433 is screwed in. The locking nut 433 squeezes a plurality of elastic sheets 432, and the plurality of elastic sheets 432 are pressed against the slide bar 42, thereby fixing the slide bar 42, applying a force to the positioning pin 51, releasing the clamping relationship between the positioning pin 51 and the positioning groove 31, and sucking air into the arc groove 22 through the air pump 6. Since the arc groove 22 is connected to the mounting groove 23, and the mounting block 2 is restricted and cannot rotate, the air pressure in the mounting groove 23 is changed, thereby moving the ink scraper 3 in the mounting groove 23, adjusting the position of the ink scraper 3, and when the ink scraper 3 moves to the appropriate position, the force applied to the positioning pin 51 is released, and the positioning pin 51 is under the influence of its own gravity and the positioning elastic The locking nut 433 is then screwed down to lock the sliding bar 42 so that the sliding bar 42 is not pressed against the locking nut 433.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An ink color control device for a printing press, comprising a fixed seat (1), a mounting block (2) and an ink scraper (3), wherein the mounting block (2) is rotatably connected to the fixed seat (1), the mounting block (2) is provided with a mounting groove (23), the ink scraper (3) is slidably connected in the mounting groove (23), the fixed seat (1) is provided with an arc rod (11), the mounting block (2) is provided with an arc groove (22) corresponding to the arc rod (11), the arc rod (11) is slidably connected in the arc groove (22), and the arc groove (22) is connected to the mounting groove (23), characterized in that: The fixing seat (1) is provided with an angle positioning mechanism (4), and the angle positioning mechanism (4) is used to limit the rotation angle of the mounting block (2). The mounting block (2) is provided with a position positioning mechanism (5), and the position positioning mechanism (5) is used to fix the ink scraper (3). The mounting block (2) is provided with an air pipe (25), one end of the air pipe (25) is connected to the arc groove (22), and the other end of the air pipe (25) is used to connect to an external air pump.

2. The ink color control device for a printing press according to claim 1, characterized in that: The angle positioning mechanism (4) comprises a mounting rod (41), a sliding rod (42) and a locking member (43); the mounting rod (41) is arranged on the fixed seat (1); a sliding rod slot is arranged in the mounting rod (41) corresponding to the sliding rod (42); the sliding rod (42) is slidably connected in the sliding rod slot; the locking member (43) is arranged at one end of the mounting rod (41) away from the fixed seat (1); one end of the sliding rod (42) passes through the locking member (43); the locking member (43) is used to fix the sliding rod (42); one end of the sliding rod (42) is hinged with a sliding block (44); the sliding block (44) is slidably connected to the fixed seat (1).

3. The ink color control device for a printing press according to claim 2, characterized in that: The locking member (43) comprises a locking sleeve (431), an elastic sheet (432) and a locking nut (433); a plurality of the elastic sheets (432) are provided, and the plurality of the elastic sheets (432) are arranged at equal intervals on the circumferential portion of the locking sleeve (431); a locking thread is provided on the locking sleeve (431); and the locking nut (433) is connected to the locking sleeve (431) by threadingly cooperating with the locking thread.

4. The ink color control device for a printing press according to claim 1, characterized in that: The position positioning mechanism (5) comprises a positioning pin (51) and a positioning spring (52); a positioning through hole is provided on the mounting block (2); the positioning pin (51) is inserted into the positioning through hole; the positioning spring (52) is sleeved on the positioning pin (51); one end of the positioning spring (52) is connected to the positioning pin (51); the other end of the positioning spring (52) is connected to the mounting block (2); and a positioning groove (31) is provided on the ink scraper (3) corresponding to the positioning pin (51).

5. The ink color control device for a printing press according to claim 4, characterized in that: A plurality of positioning grooves (31) are provided, and the plurality of positioning grooves (31) are arranged on the ink scraper (3) at equal intervals along the sliding direction of the ink scraper (3).

6. The ink color control device for a printing press according to claim 1, characterized in that: A sealing block (32) is connected to one end of the scraper (3) disposed in the mounting groove (23); the sealing block (32) is slidably connected in the mounting groove (23) and is sealed to the mounting block (2).

7. The ink color control device for a printing press according to claim 1, characterized in that: A piston disc (12) is provided at one end of the arc-shaped rod (11) away from the fixing seat (1); the piston disc (12) is slidably connected in the arc-shaped groove (22) and is sealedly connected to the mounting block (2).

8. The ink color control device for a printing press according to claim 1, characterized in that: The arc center of the arc-shaped groove (22) is coaxially arranged with the rotation center of the mounting block (2).

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