Ink supply structure of offset press

Abstract

The utility model relates to the technical field of offset printing equipment, and discloses an offset press ink supply structure which comprises an ink fountain roller, an ink transfer roller arranged on the other side of the ink fountain roller, an ink distributing roller arranged on the other side of the ink transfer roller, a plate leaning roller arranged on the other side of the ink distributing roller, and an ink box assembly arranged on the top of the ink fountain roller. The bottom of the ink box assembly is fixedly connected with an ink scraping assembly, and the bottom of the ink scraping assembly is fixedly connected with a collecting assembly. The ink box assembly, the ink scraping assembly and the collecting assembly are arranged, the ink fountain roller is movably clamped in the ink outlet, after the ink fountain roller rotates out of the box body and ink taking is completed, redundant ink on the surface of the ink fountain roller is scraped through the ink collecting assembly, and the redundant ink enters the collecting assembly through the conveying pipeline after scraping; and when the top of the outer surface of the ink fountain roller enters the inner side of the box body again for ink taking, residual ink is scraped off by the ink outlet again, and then the ink fountain roller enters the box body for ink taking, so that the purity of the ink in the box body is ensured, and the ink in the box body is prevented from being polluted in the repeated ink taking process.

Description

Technical Field

[0001] The utility model relates to the field of offset printing equipment, and more specifically to an ink supply structure for an offset printing machine. Background Art

[0002] The working principle of an offset printing machine is mainly based on the indirect printing method, that is, the printed graphics and texts are first printed from the printing plate onto the blanket cylinder, and then transferred from the blanket cylinder to the paper. This indirect printing method enables the ink to be transferred to the paper more evenly, thereby improving the printing quality.

[0003] During the working process of the offset printing machine, the ink fountain roller will take out the ink in the ink cartridge and then transfer it to the inking roller. However, the inking roller cannot completely take away the ink from the ink fountain roller, which will cause the ink on the ink fountain roller to be transferred back into the ink cartridge after being transported out of the ink cartridge, making it inconvenient to ensure the purity of the ink inside the ink cartridge and affecting the normal use of the ink. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an ink supply structure for an offset printing machine to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: an ink supply structure for an offset printing machine, including an ink fountain roller, a transfer roller is arranged on the other side of the ink fountain roller, an inking roller is arranged on the other side of the transfer roller, a form roller is arranged on the other side of the inking roller, an ink cartridge assembly is arranged on the top of the ink fountain roller, a scraping component is fixedly connected to the bottom of the ink cartridge assembly, a collecting component is fixedly connected to the bottom of the scraping component, the ink cartridge assembly includes a box body, an ink outlet which is in clearance fit with the length of the ink fountain roller is opened at the bottom of the other side of the box body, the scraping component includes a collecting component, and a transmission pipeline is fixedly connected to the bottom of the collecting component.

[0006] Further, the collecting component includes a triangular block, a leaking hole is opened at the top of the triangular block, the triangular block is of a hollow structure and a square hole is opened at the bottom of the triangular block, a scraping groove is opened on the other side of the triangular block, and second sealing blocks are fixedly connected to the front and back surfaces of the triangular block.

[0007] Further, the collecting component includes a collecting box, a collecting box is fixedly connected to the other side of the collecting box, and a square groove is opened at the top of the collecting box.

[0008] Further, a first sealing block is fixedly connected to the bottom of the box body, an L-shaped mounting frame is fixedly connected to the bottom of the first sealing block, and the scraping component is fixedly connected to the other side of the bottom of the L-shaped mounting frame.

[0009] Furthermore, the box body is a hollow structure. The side of the ink outlet close to the ink fountain roller is in clearance fit with the outer shape of the ink fountain roller, and the shape of the scraping groove is in clearance fit with the outer shape of the ink fountain roller.

[0010] Furthermore, the inner size of the square hole is the same as the inner size of the transmission pipeline, and the outer length and width of the transmission pipeline are in transitional fit with the inner length and width of the square groove.

[0011] Furthermore, the length of the triangular block is the same as the length of the first sealing block. The side of the first sealing block close to the ink fountain roller is in clearance fit with the outer shape of the ink fountain roller. The height of the second sealing block is the distance between the top of the first sealing block and the bottom of the triangular block, and the length of the front surface of the second sealing block is the same as the length of the front surface of the triangular block.

[0012] Furthermore, communication ports are provided on the other side of the collection box and one side of the collection box, and the bottom of the communication port is beveled.

[0013] Technical effects and advantages of the present utility model:

[0014] 1. By providing an ink cartridge assembly, a scraping assembly and a collection assembly, the present utility model movably clamps the ink fountain roller in the ink outlet. When the ink fountain roller rotates out of the box body and finishes ink taking, the excess ink on the surface of the ink fountain roller is scraped off by the ink collecting assembly. After scraping, the excess ink enters the collection assembly through the transmission pipeline. And when the top of the outer surface of the ink fountain roller enters the inner side of the box body again to take ink, the remaining ink will be scraped off again by the ink outlet and then enter the box body to take ink, ensuring the purity of the ink in the box body and avoiding the ink in the box body being contaminated during the repeated ink taking process.

[0015] 2. By providing an ink collecting assembly, the scraping groove scrapes the surface of the ink fountain roller. The scraped excess ink accumulates on the inclined surface of the top of the triangular block and then leaks through the ink leakage hole and is collected in the collection box through the transmission pipeline. The second sealing block seals the collection of excess ink by the ink collecting assembly during this process, avoiding the disorderly flow of ink. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the ink cartridge assembly and the scraping assembly of the present utility model.

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the scraping assembly of the present utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the ink collecting assembly of the present utility model.

[0020] Figure 5 This is a schematic structural diagram of the collection component of the present utility model.

[0021] The reference numerals are as follows:

[0022] 1, ink fountain roller; 2, inking roller; 3, ink distributing roller; 4, forme roller; 5, ink cartridge assembly; 501, cartridge body; 502, ink outlet; 503, first sealing block; 504, L-shaped mounting bracket; 6, scraping component; 601, ink collecting component; 6011, triangular block; 6012, scraping groove; 6013, ink leakage hole; 6014, second sealing block; 6015, square hole; 602, transmission pipeline; 7, collection component; 701, collection box; 702, square groove; 703, collection box; 704, communication port. Specific embodiments

[0023] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. In addition, the forms of each structure described in the following embodiments are only examples, and the ink supply structure of the offset printing machine involved in the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] Referring to Figures 1 to 5 , the present utility model provides an ink supply structure for an offset printing machine, including an ink fountain roller 1. On the other side of the ink fountain roller 1, there is an inking roller 2. On the other side of the inking roller 2, there is an ink distributing roller 3. On the other side of the ink distributing roller 3, there is a forme roller 4. On the top of the ink fountain roller 1, there is an ink cartridge assembly 5. At the bottom of the ink cartridge assembly 5, there is a scraping component 6 fixedly connected. At the bottom of the scraping component 6, there is a collection component 7 fixedly connected. The ink cartridge assembly 5 includes a cartridge body 501. At the bottom of the other side of the cartridge body 501, there is an ink outlet 502 that is in clearance fit with the length of the ink fountain roller 1. The scraping component 6 includes an ink collecting component 601. At the bottom of the ink collecting component 601, there is a transmission pipeline 602 fixedly connected;

[0025] Specifically, by providing the ink cartridge assembly 5, the scraping component 6 and the collection component 7, the ink fountain roller 1 is movably clamped in the ink outlet 502. When the ink fountain roller 1 rotates out of the cartridge body 501 and finishes taking ink, the ink collecting component 601 scrapes off the excess ink on the surface of the ink fountain roller 1. After scraping, the excess ink enters the collection component 7 through the transmission pipeline 602. And when the top of the outer surface of the ink fountain roller 1 enters the inner side of the cartridge body 501 again to take ink, the remaining ink will be scraped off again by the ink outlet 502 before entering the cartridge body 501 to take ink, ensuring the purity of the ink in the cartridge body 501 and avoiding the ink in the cartridge body 501 from being contaminated during the repeated ink taking process.

[0026] Further, the ink collecting assembly 601 includes a triangular block 6011. An ink leakage hole 6013 is formed at the top of the triangular block 6011. The triangular block 6011 is of a hollow structure and a square hole 6015 is formed at the bottom of the triangular block 6011. An ink scraping groove 6012 is formed on the other side of the triangular block 6011. Second sealing blocks 6014 are fixedly connected to both the front and back surfaces of the triangular block 6011.

[0027] Specifically, by providing the ink collecting assembly 601, the ink scraping groove 6012 scrapes the surface of the ink fountain roller 1. The excess ink scraped off accumulates on the top inclined surface of the triangular block 6011 and then leaks through the ink leakage hole 6013 and is collected in the collecting box 701 through the transmission pipeline 602.

[0028] Further, the collecting assembly 7 includes a collecting box 701. A collecting box 703 is fixedly connected to the other side of the collecting box 701. A square groove 702 is formed at the top of the collecting box 701.

[0029] Specifically, a discharge pipe is provided on one side of the collecting box 701. When the ink height in the collecting box 701 exceeds the height of the discharge pipe of the collecting box 701, it can be discharged.

[0030] Further, a first sealing block 503 is fixedly connected to the bottom of the box body 501. An L-shaped mounting bracket 504 is fixedly connected to the bottom of the first sealing block 503. The ink scraping assembly 6 is fixedly connected to the other side of the bottom of the L-shaped mounting bracket 504.

[0031] Further, the box body 501 is of a hollow structure. The side of the ink outlet 502 close to the ink fountain roller 1 is in clearance fit with the outer shape of the ink fountain roller 1. The shape of the ink scraping groove 6012 is in clearance fit with the outer shape of the ink fountain roller 1.

[0032] Specifically, it is ensured that the ink fountain roller 1 can rotate normally inside the ink outlet 502. When the top of the outer surface of the ink fountain roller 1 enters the inside of the box body 501 to pick up ink again, the remaining ink will be scraped off again by the ink outlet 502 before entering the box body 501 to pick up ink, ensuring the purity of the ink in the box body 501 and avoiding contamination of the ink in the box body 501 during the repeated ink picking process.

[0033] Further, the inner size of the square hole 6015 is the same as the inner size of the transmission pipeline 602. The outer length and width of the transmission pipeline 602 are in transition fit with the inner length and width of the square groove 702.

[0034] Specifically, it is ensured that the excess ink will not leak out when falling from the square hole 6015 through the transmission pipeline 602 into the collecting box 701.

[0035] Further, the length of the triangular block 6011 is the same as that of the first sealing block 503. The side of the first sealing block 503 close to the ink fountain roller 1 is in clearance fit with the outer shape of the ink fountain roller 1. The height of the second sealing block 6014 is the distance between the top of the first sealing block 503 and the bottom of the triangular block 6011. The length of the front surface of the second sealing block 6014 is the same as that of the front surface of the triangular block 6011.

[0036] Specifically, the first sealing block 503 and the second sealing block 6014 seal the excess ink collected by the ink collecting assembly 601 during this process to prevent the ink from flowing randomly.

[0037] Further, communication ports 704 are provided on both the other side of the collection box 701 and one side of the collection box 703. The bottom of the communication port 704 is beveled.

[0038] Specifically, when the amount of ink accumulated in the collection box 703 is relatively large, it will drain into the collection box 701 through the communication port 704. The bevel of the communication port 704 facilitates the flow of the ink.

[0039] The working principle of the present utility model: When the offset printing machine is working, the ink fountain roller 1, the ink distributing roller 2, the ink leveling roller 3, and the forme roller 4 are started to rotate synchronously. The ink fountain roller 1 is movably clamped in the ink outlet 502. When the ink fountain roller 1 rotates out of the box body 501 and finishes taking ink, the excess ink on the surface of the ink fountain roller 1 is scraped off by the scraping groove 6012. After scraping, the excess ink leaks down through the ink leakage hole 6013 and is collected in the collection box 701 through the transmission pipeline 602. After the ink fountain roller 1 successfully takes ink, it is sequentially transferred to the surfaces of the ink distributing roller 2, the ink leveling roller 3, and the forme roller 4 to supply ink for offset printing. And when the top of the outer surface of the ink fountain roller 1 enters the inner side of the box body 501 again to take ink, the remaining ink will be scraped off again by the ink outlet 502 before entering the box body 501 to take ink. After repeatedly transferring the ink for a period of time, there will also be some excess ink on the surfaces of the ink distributing roller 2, the ink leveling roller 3, and the forme roller 4, which is received by the collection box 703.

[0040] After the offset printing is completed, there is a lead-out pipe on one side of the collection box 701, which can lead out the ink collected in the collection assembly 7, and after purification and processing, it can be supplemented into the box body 501 to improve the utilization rate of the excess ink during the ink supply process.

[0041] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change.

[0042] Secondly: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0043] Finally: The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An inking structure for an offset printing machine, comprising an ink fountain roller (1), a ductor roller (2) is arranged on the other side of the ink fountain roller (1), an inking roller (3) is arranged on the other side of the ductor roller (2), and an impression cylinder (4) is arranged on the other side of the inking roller (3), characterized in that: An ink cartridge assembly (5) is provided on the top of the ink fountain roller (1), an ink scraping assembly (6) is fixedly connected to the bottom of the ink cartridge assembly (5), and a collecting assembly (7) is fixedly connected to the bottom of the ink scraping assembly (6). The ink cartridge assembly (5) comprises a box body (501), and an ink outlet (502) that matches the length gap of the ink fountain roller (1) is provided at the bottom of the other side of the box body (501). The ink scraping assembly (6) comprises an ink collecting assembly (601), and a transmission pipe (602) is fixedly connected to the bottom of the ink collecting assembly (601).

2. The ink supply structure of an offset printing press according to claim 1, characterized in that: The ink collecting assembly (601) comprises a triangular block (6011), an ink leakage hole (6013) is provided on the top of the triangular block (6011), the triangular block (6011) is a hollow structure, a square hole (6015) is provided on the bottom of the triangular block (6011), an ink scraping groove (6012) is provided on the other side of the triangular block (6011), and a second sealing block (6014) is fixedly connected to the front and back surfaces of the triangular block (6011).

3. The ink supply structure of an offset printing machine according to claim 2, characterized in that: The collecting assembly (7) comprises a collecting box (701), a collecting box (703) is fixedly connected to the other side of the collecting box (701), and a square groove (702) is provided on the top of the collecting box (701).

4. The ink supply structure of an offset printing machine according to claim 3, characterized in that: The bottom of the box body (501) is fixedly connected to a first sealing block (503), the bottom of the first sealing block (503) is fixedly connected to an L-shaped mounting frame (504), and the ink scraping assembly (6) is fixedly connected to the other side of the bottom of the L-shaped mounting frame (504).

5. The ink supply structure of an offset printing machine according to claim 4, characterized in that: The box body (501) is a hollow structure, the ink outlet (502) is close to the side of the ink fountain roller (1) and has a clearance fit with the outer shape of the ink fountain roller (1), and the shape of the ink scraping groove (6012) has a clearance fit with the outer shape of the ink fountain roller (1).

6. The ink supply structure of an offset printing press according to claim 3, characterized in that: The inner dimensions of the square hole (6015) are the same as the inner dimensions of the transmission pipe (602), and the outer length and width of the transmission pipe (602) are transitionally matched with the inner length and width of the square groove (702).

7. The ink supply structure of an offset printing press according to claim 4, characterized in that: The length of the triangular block (6011) is the same as that of the first sealing block (503); the side of the first sealing block (503) close to the ink fountain roller (1) is in clearance with the outer shape of the ink fountain roller (1); the height of the second sealing block (6014) is the distance between the top of the first sealing block (503) and the bottom of the triangular block (6011); and the length of the front of the second sealing block (6014) is the same as the length of the front of the triangular block (6011).

8. The ink supply structure of an offset printing press according to claim 3, characterized in that: A communication port (704) is provided on the other side of the collection box (701) and one side of the collection box (703), and the bottom of the communication port (704) is beveled.

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