Ink scraping device for printing machine

By designing a doctor blade that combines a groove, a slide block, and a pin hole, the problem of inconvenient doctor blade position adjustment is solved, achieving convenient doctor blade adjustment and efficient ink scraping effect, and adapting to ink rollers of different sizes.

CN223803260UActive Publication Date: 2026-01-16CHONGQING QIAODENG COLOR PRINTING PACKAGE CO LTD
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Patent Information

Application Number
CN202422864626.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2026-01-16
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

The existing doctor blade structure of printing presses makes it difficult to easily adjust the position of the doctor blade to adapt to printing rollers of different sizes, which affects the doctor blade effect and ease of operation.

Method used

A doctor blade holder was designed, comprising a chute, a slide block, a beam frame, and a doctor blade holder. The height and angle of the doctor blade can be adjusted by combining the slide block and the pin hole to adapt to ink rollers of different sizes and ensure the close fit between the doctor blade and the ink roller.

Benefits of technology

It enables convenient adjustment of the doctor blade, improves the ink scraping effect, adapts to ink rollers of different sizes, simplifies the operation process, and enhances the applicability and efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an ink scraper for a printing machine, which comprises two oppositely arranged side frames, a rotatable ink roller is arranged below the position between the two side frames, a sliding groove is vertically arranged in the center of each side frame, the sliding grooves penetrate through the upper surfaces of the side frames, and the sliding grooves penetrate through the left side surfaces and the right side surfaces of the side frames. A sliding seat is arranged in the sliding groove in a sliding manner; a beam frame is arranged between the two opposite sliding seats, and the beam frame is located over the printing ink roller and is parallel to the printing ink roller. According to the utility model, the scraper seat and the scraper can be adjusted to proper position heights by sliding the sliding seats, and then pins are pinned into the first pin holes and the second pin holes, so that the sliding seats on the two sides can be fixed, and the positions of the scraper seat and the scraper are fixed; the scraper is just vertical and is attached to the surface of the printing ink roller, and along with rotation of the printing ink roller, the scraper can scrape off printing ink gathered on the surface of the printing ink roller; and the height position and the inclination angle of the scraper can be conveniently adjusted by the equipment.
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Description

TECHNICAL FIELD

[0001] The utility model relates to printing machine technical field, concretely is a printing machine is with ink cleaner. BACKGROUND

[0002] Modern printing machine generally is composed of mounting, coating ink, impression, paper conveying mechanism. First, the text and image to be printed are made into printing plate, and are mounted on the printing machine, then the ink is applied to the place with text and image on the printing plate by manual or printing machine, and is directly or indirectly transferred to paper or other printing material, thereby copying the same printing plate printing product. The invention and development of printing machine have important role for the spread of human civilization and culture.

[0003] The printing roller is one of indispensable parts, the printing roller plays the role of impression, ink adjusting and ink transferring, after a long time of printing operation, the surface of the printing roller will be attached with a lot of ink, the ink aggregation will form an oil layer, and the ink cleaning is needed, which is the daily maintenance of the printing roller and can prevent the influence of the residual ink on the printing roller on the next printing; some existing ink cleaning structures are mostly fixedly installed, so that the blade edge of the scraper is just attached to the printing roller, but the printing roller has different thickness and size models, and the position height of the scraper needs to be adjusted in daily use, and the specific adjustment is relatively cumbersome and inconvenient.

[0004] In view of the above problems, the utility model provides the following technical scheme. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a printing machine ink cleaner for solving the problems mentioned in the background art.

[0006] To solve the above technical problems, the utility model provides the following technical scheme.

[0007] The utility model provides a printing machine ink cleaner, including two opposite side frames, rotatable ink roller is arranged below between two side frames, the central vertical of side frame is provided with the sliding groove, the sliding groove penetrates the upper surface of side frame, the sliding groove penetrates the left side and right side of side frame, sliding seat is arranged in the sliding groove,

[0008] Beam frame is arranged between two opposite sliding seats, and the beam frame is located directly above the ink roller and is parallel to the ink roller, recess is arranged in the front lower portion of the beam frame and penetrates the beam frame, the recess is "n" type, scraper seat is rotatably arranged in the recess, and the scraper seat is located directly above the ink roller and is parallel to the ink roller.

[0009] The lower surface of the scraper seat is inserted with the scraper, the blade edge of the scraper faces downward, and the blade edge of the scraper is attached to the surface of the ink roller.

[0010] Preferably, the left side of the side frame is provided with two rows of second pin holes from top to bottom, and the two rows of second pin holes are located on both sides of the sliding groove, and each row of second pin holes is arranged in a plurality of equal intervals from bottom to top.

[0011] Preferably, the outer side of the sliding seat is provided with four first pin holes, and the four first pin holes are located at the four corners of the sliding seat respectively.

[0012] Preferably, the lower surface of the scraper seat is provided with a slot, and the upper end of the scraper is inserted into the slot.

[0013] Preferably, the front of the scraper seat is provided with a row of first through holes below, and the first through holes penetrate the slot.

[0014] Preferably, the front of the scraper is provided with a row of second through holes above, and the second through holes are uniformly distributed in equal intervals.

[0015] Preferably, the upper surface of the beam frame is provided with a handle, and the handle is in the shape of 'n', and the side surface of the sliding seat is provided with a long hole penetrating the sliding seat.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] According to the size of the ink roller, the sliding seat can adjust the scraper seat and the scraper to the appropriate position height, and then the pin is inserted into the first pin hole and the second pin hole, so that the two sliding seats are fixed, and the position of the scraper seat and the scraper is fixed.

[0018] The scraper can also be rotated to adjust to a specific inclination angle, and then the height position of the scraper is adjusted, so that the cutting edge of the scraper is attached to a certain position of the side surface of the ink roller to scrape the ink, and the scraper is attached to the side surface of the ink roller, and the extrusion force of the scraper on the ink roller is small, and the ink scraping effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a perspective view of the utility model;

[0020] Fig. 2 It is a perspective view of the utility model;

[0021] Fig. 3 It is a perspective view of the utility model.

[0022] In the diagram: 1. Side frame; 11. Ink roller; 12. Slide groove; 13. Second pin hole; 2. Slide block; 21. First pin hole; 22. Long strip hole; 3. Beam frame; 31. Handle; 4. Squeegee holder; 41. Slot; 42. First through hole; 5. Squeegee; 51. Second through hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] like Figs. 1-3 As shown, a doctor blade for a printing press includes two opposing side frames 1. A rotatable ink roller 11 is arranged below the two side frames 1. A vertical groove 12 is arranged in the center of the side frame 1. The groove 12 passes through the upper surface of the side frame 1 and through the left and right sides of the side frame 1. A slide block 2 is slidably arranged in the groove 12 and can move up and down in the groove 12.

[0026] A beam frame 3 is provided between two opposing slides 2. The beam frame 3 is located directly above the ink roller 11 and is parallel to the ink roller 11. A notch penetrating the beam frame 3 is provided below the front of the beam frame 3. The notch is "n" shaped. A scraper seat 4 is rotatably installed inside the notch. The scraper seat 4 is connected to the opposite inner wall of the notch through a rotating shaft. The scraper seat 4 is located directly above the ink roller 11 and is parallel to the ink roller 11.

[0027] A scraper 5 is inserted into the lower surface of the scraper holder 4. The blade of the scraper 5 faces downward and is in contact with the surface of the ink roller 11. When the ink roller 11 rotates, the scraper 5 can scrape off the ink remaining on the surface of the ink roller 11.

[0028] The left side of the side frame 1 has two rows of second pin holes 13 arranged from top to bottom. The two rows of second pin holes 13 are located on both sides of the slide groove 12. Each row of second pin holes 13 has several holes arranged from bottom to top and at equal intervals.

[0029] The outer side of the sliding seat 2 is provided with four first pin holes 21, which are respectively located at the four corners of the sliding seat 2 and are aligned with two rows of second pin holes 13. By using the four first pin holes 21 to face the second pin holes 13 at different height positions and then inserting a pin into the first pin holes 21 and the second pin holes 13, the height of the sliding seat 2 can be adjusted.

[0030] The lower surface of the scraper seat 4 is provided with a slot 41, and the upper end of the scraper 5 is inserted into the slot 41.

[0031] The front lower surface of the scraper seat 4 is provided with a row of first through holes 42, which penetrate the slot 41 and are evenly distributed at equal intervals.

[0032] The front upper surface of the scraper 5 is provided with a row of second through holes 51, which are evenly distributed at equal intervals and are aligned with the first through holes 42. By inserting a bolt into the first through holes 42 and the second through holes 51, the scraper 5 can be fixed. The scraper 5 and the scraper seat 4 are detachably connected, which facilitates the disassembly and replacement or cleaning of the scraper 5.

[0033] The upper surface of the beam frame 3 is provided with a handle 31 in the shape of "n", and the side surface of the sliding seat 2 is provided with a long slot 22 that penetrates the sliding seat 2. When the scraper seat 4 and the scraper 5 are rotated to a certain angular position, a clamping block is inserted into the long slot 22, and the front end of the clamping block abuts against the side surface of the scraper seat 4, which can further fix the scraper seat 4 to avoid movement of the scraper seat 4.

[0034] In summary: during use, according to the size of the ink roller 11, the sliding seat 2 is slid to adjust the scraper seat 4 and the scraper 5 to a suitable position height, and then a pin is inserted into the first pin holes 21 and the second pin holes 13 to fix the two sliding seats 2, so that the position of the scraper seat 4 and the scraper 5 is fixed. The scraper 5 is vertically arranged and closely attached to the surface of the ink roller 11. With the rotation of the ink roller 11, the scraper 5 can scrape off the ink accumulated on the surface of the ink roller 11.

[0035] The scraper 5 can also be rotated to adjust to a specific inclination angle, and then the height position of the scraper 5 is adjusted. In this way, the blade of the scraper 5 is attached to a certain position on the side surface of the ink roller 11 to scrape off the ink. The scraper 5 closely attaches to the side surface of the ink roller 11, and the pressing force of the scraper 5 on the ink roller 11 is small, so the ink scraping effect is good.

[0036] The above description is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A doctor blade for a printing press, characterized in that: The utility model provides a printing ink scraping device, including two opposite side frame (1), the lower side between two side frame (1) is provided with rotatable printing ink roller (11), the central vertical of side frame (1) is provided with slide groove (12), the slide groove (12) is through the upper surface of side frame (1), the slide groove (12) is through the left side and right side of side frame (1), the slide groove (12) is provided with sliding seat (2) in slidingly, Two opposite sliding seat (2) between the setting is provided with beam frame (3), the beam frame (3) is located the direct upper side of printing ink roller (11) and keeps parallel with printing ink roller (11), the front of beam frame (3) is provided with the recess that is through beam frame (3) below, the recess is "n" type, the recess is provided with scraper seat (4) in rotation, the scraper seat (4) is located the direct upper side of printing ink roller (11) and keeps parallel with printing ink roller (11), The lower surface of scraper seat (4) is inserted with scraper (5), the cutting edge of scraper (5) is downward, the cutting edge of scraper (5) is attached to the surface of printing ink roller (11).

2. The doctor blade for a printing press according to claim 1, characterized in that: The left side of side frame (1) is provided with two columns of second pin hole (13) from top to bottom, two columns of second pin hole (13) are located on both sides of slide groove (12), and each column of second pin hole (13) is arranged at intervals from bottom to top.

3. A doctor blade for a printing press according to claim 2, characterised in that: The outer side of sliding seat (2) is provided with four first pin holes (21), and the four first pin holes (21) are located at the four corners of the sliding seat (2), respectively.

4. The doctor blade for a printing press according to claim 1, wherein: The lower surface of scraper seat (4) is provided with an insertion slot (41), and the upper end of scraper (5) is inserted into the insertion slot (41).

5. A doctor blade for a printing press according to claim 4, wherein: The front of scraper seat (4) is provided with a row of first through holes (42) below, the first through holes (42) pass through the insertion slot (41), and the first through holes (42) are evenly distributed at intervals.

6. A doctor blade for a printing press according to claim 5, wherein: The front of scraper (5) is provided with a row of second through holes (51) above, the second through holes (51) are evenly distributed at intervals, and the second through holes (51) are aligned with the first through holes (42).

7. The doctor blade for a printing press according to claim 1, wherein: The upper surface of beam frame (3) is provided with a handle (31), the handle (31) is "n" type, and the side of sliding seat (2) is provided with a long hole (22) passing through the sliding seat (2).