Ink scraping assembly for printing roller

By designing a flexible contact ink scraping and collection structure, the frictional wear and ink collection problems of existing printing roller ink scraping assemblies are solved, achieving efficient use of printing rollers and effective ink collection.

CN223618445UActive Publication Date: 2025-12-02SHENYANG DONGYIYUAN PACKAGING TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520186629.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-12-02
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

Existing printing roller ink scraping assemblies scrape ink through rigid contact, which leads to frictional wear that affects the lifespan of the device, and the scraped ink is not easy to collect.

Method used

An ink scraping assembly was designed, comprising an ink collection box, an ink scraper, an energy storage cylinder, and a telescopic rod. The ink is scraped off by flexible contact, and the ink is collected by the reaction force of a damping spring.

Benefits of technology

It improves the service life of printing rollers and achieves effective ink collection, avoiding frictional wear caused by rigid contact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The ink scraping assembly for the printing roller comprises the printing roller and further comprises an ink collecting box, an ink scraping plate and an energy storage cylinder, the printing roller is rotationally connected into the ink collecting box through a shaft rod, and the ink scraping plate is rotationally connected into the ink collecting box through an arranged supporting frame. The printing device has the advantages that the arranged energy storage cylinder can be supported on the printing ink scraping plate through the telescopic rod, the damping spring connected to the telescopic rod can store energy and generate counter-acting force after being pressed, and therefore the telescopic rod can apply pressure to the connected movable seat through the rotating block, the printing ink scraping plate can be supported on the printing roller through the rotating block, and the printing roller is driven to rotate. And then a movable seat extrudes an ink scraping plate through a sliding rod to be flexibly attached to the outer surface of the printing roller, ink on the outer surface of the printing roller can be flexibly attached and scraped conveniently, rigid contact is avoided, therefore, the service life of the device is prolonged, and finally the scraped ink can be collected through an ink collecting box.
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Description

Technical Field

[0001] This utility model relates to the field of packaging and printing technology, and in particular to an ink scraping assembly for printing rollers. Background Technology

[0002] The doctor blade assembly is an important component of a printing press. Its main function is to scrape away excess ink from the surface of the printing roller, resulting in higher print quality. The doctor blade assembly typically consists of a pair of doctor blades and a support. As the printing roller rotates, the doctor blades scrape away excess ink, leaving only the raised pattern for a clear impression. Proper installation and maintenance of the doctor blade assembly are crucial factors in ensuring print quality.

[0003] Since ink removal from printing rollers is mainly done using a scraper, and the existing scraper installation structure is fixed, the scraper makes rigid contact with the printing roller to scrape the ink. This method is prone to frictional wear, which affects the life of the device. Secondly, the existing ink scraping assembly is not convenient for collecting the scraped ink, which also has a certain impact. Therefore, there is an urgent need for an ink scraping assembly for printing rollers to solve the above problems. Utility Model Content

[0004] To solve the above problems, this utility model provides an ink scraping assembly for printing rollers, which is achieved through the following technical solution.

[0005] An ink scraping assembly for a printing roller includes a printing roller and further includes:

[0006] An ink collection box, wherein the printing roller is rotatably connected to the inside of the ink collection box via a shaft;

[0007] The ink scraper is rotatably connected to the inside of the ink collection box via a support frame, and one side of the ink scraper is attached to the outer surface of the printing roller. The outer surface of the ink scraper has an opening, and two slide rods are fixedly connected inside the opening. One end of each slide rod is movably connected to a movable seat.

[0008] An energy storage cylinder is rotatably connected to one side inside the ink collection box. One end of the energy storage cylinder is movably connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to a rotating block, which is rotatably connected to a movable base.

[0009] Furthermore, slots are provided at both ends of the top of the ink collection box, and the printing roller is mounted on the ink collection box via a shaft.

[0010] Furthermore, the bottom of the ink collection box is provided with a first inclined plate and a second inclined plate, and one end of the ink collection box is provided with an output port corresponding to the position of the second inclined plate, and a rubber sealing plug is embedded and connected inside the output port of the ink collection box.

[0011] Furthermore, two support rods are fixedly connected to the bottom of the ink collection box, and a support plate is fixedly connected to one end of each support rod.

[0012] Furthermore, a square limiting slider is fixedly connected to one end of the telescopic rod that extends into the energy storage cylinder, and a damping spring is fixedly connected to the bottom of the square limiting slider, with one end of the damping spring fixedly connected inside the energy storage cylinder.

[0013] The beneficial effects of this invention are as follows: During operation, the ink collection box covers the printing roller of the printing press, and the ink scraper inside the collection box adheres to the outer surface of the printing roller. When the printing roller rotates for printing, it rotates on one side of the ink scraper. The energy storage cylinder is then supported on the ink scraper via a telescopic rod. The damping spring connected to the telescopic rod stores energy and generates a reaction force when compressed, causing the telescopic rod to apply pressure to the connected movable seat via a rotating block. This, in turn, causes the movable seat to press the ink scraper against the outer surface of the printing roller via a sliding rod, facilitating flexible scraping of the ink and avoiding rigid contact, thus improving the lifespan of the device. Finally, the scraped ink is collected through the ink collection box. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 : A schematic diagram of the structure of an ink scraping assembly for a printing roller according to this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of A in the middle;

[0017] Figure 3 : A schematic diagram of the connection between the energy storage cylinder and the telescopic rod of this utility model;

[0018] Figure 4 : A cross-sectional view of the ink collection box of this utility model.

[0019] The attached figures are labeled as follows:

[0020] 1. Printing roller;

[0021] 2. Ink collection box; 21. Groove; 22. First inclined plate; 23. Second inclined plate; 24. Rubber sealing plug; 25. Support rod; 251. Support plate;

[0022] 3. Ink scraper; 31. Support frame; 32. Opening; 321. Slide rod; 322. Movable seat;

[0023] 4. Energy storage cylinder; 41. Telescopic rod; 411. Rotating block; 412. Square limit slider; 413. Damping spring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-4 As shown, the present invention has the following specific embodiments.

[0026] Example:

[0027] An ink scraping assembly for a printing roller includes a printing roller 1, and further includes:

[0028] The ink collection box 2 and the printing roller 1 are rotatably connected inside the ink collection box 2 via a shaft;

[0029] The ink scraper 3 is rotatably connected to the inside of the ink collection box 2 via a support frame 31, and one side of the ink scraper 3 is attached to the outer surface of the printing roller 1. An opening 32 is provided on the outer surface of the ink scraper 3, and two slide rods 321 are fixedly connected inside the opening 32. One end of the slide rod 321 is movably connected to a movable seat 322.

[0030] Energy storage cylinder 4 is rotatably connected to one side inside ink collection box 2. One end of energy storage cylinder 4 is movably connected to telescopic rod 41. One end of telescopic rod 41 is fixedly connected to rotating block 411, and rotating block 411 is rotatably connected to movable seat 322.

[0031] By adopting the above technical solution, when using the device, the ink collection box 2 can first cover the printing roller 1 of the printing machine. At the same time, the ink scraper 3 set inside the ink collection box 2 can adhere to the outer surface of the printing roller 1. When the printing roller 1 rotates for printing, the printing roller 1 can rotate on one side of the ink scraper 3. Then, the energy storage cylinder 4 can be supported on the ink scraper 3 through the telescopic rod 41. The damping spring 413 connected to the telescopic rod 41 can store energy and generate a reaction force after being compressed. This causes the telescopic rod 41 to apply pressure to the connected movable seat 322 through the rotating block 411. Then, the movable seat 322 squeezes the ink scraper 3 to flexibly adhere to the outer surface of the printing roller 1 through the slide rod 321. This facilitates the flexible adhesion and scraping of ink on the outer surface of the printing roller 1, avoiding rigid contact and thus improving the service life of the device. Finally, the scraped ink can be collected through the ink collection box 2.

[0032] Specifically, slots 21 are provided at both ends of the top of the ink collection box 2, and the printing roller 1 is mounted on the ink collection box 2 by means of a shaft.

[0033] By adopting the above technical solution, the groove 21 can limit the shaft on the printing roller 1, thereby facilitating the placement of the ink collection box 2 under the printing roller 1.

[0034] Specifically, the bottom of the ink collection box 2 is provided with a first inclined plate 22 and a second inclined plate 23. One end of the ink collection box 2 is provided with an output port corresponding to the position of the second inclined plate 23, and a rubber sealing plug 24 is embedded and connected inside the output port of the ink collection box 2.

[0035] By adopting the above technical solution, the first inclined flow plate 22 can make the ink scraped by the printing roller 1 flow downwards and into one side of the ink collection box 2, and the second inclined flow plate 23 can make the ink flow obliquely into one end of the ink collection box 2, so that the scraped and collected ink can be output and collected through the output port of the ink collection box 2.

[0036] Specifically, the bottom of the ink collection box 2 is fixedly connected to two support rods 25, and one end of each support rod 25 is fixedly connected to a support plate 251.

[0037] By adopting the above technical solution, the support rod 25 supports the ink collection box 2 through the connected support plate 251.

[0038] Specifically, a square limiting slider 412 is fixedly connected to one end of the telescopic rod 41 that extends into the energy storage cylinder 4. A damping spring 413 is fixedly connected to the bottom of the square limiting slider 412, and one end of the damping spring 413 is fixedly connected to the inside of the energy storage cylinder 4.

[0039] By adopting the above technical solution, the telescopic rod 41 can move on the energy storage cylinder 4. At the same time, the square limiting slider 412 connected to the telescopic rod 41 can be squeezed by the connected damping spring 413. When the square limiting slider 412 is compressed, it can squeeze and store energy for the damping spring 413. After storing energy, the damping spring 413 can generate a reaction force, thereby causing the square limiting slider 412 to push the telescopic rod 41 to apply an outward extension force. The telescopic rod 41 pushes the ink scraper 3 to press against the outer surface of the printing roller 1 through the connected movable seat 322, thereby enabling the ink scraper 3 to scrape the outer surface of the printing roller 1.

[0040] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An ink scraping assembly for a printing roller, comprising a printing roller (1), characterized in that... It also includes: Ink collection box (2), the printing roller (1) is rotatably connected inside the ink collection box (2) via a shaft; The ink scraper (3) is rotatably connected to the inside of the ink collection box (2) through a support frame (31), and one side of the ink scraper (3) is attached to the outer surface of the printing roller (1). The outer surface of the ink scraper (3) has an opening (32), and two slide rods (321) are fixedly connected inside the opening (32). One end of the slide rod (321) is movably connected to a movable seat (322). An energy storage cylinder (4) is rotatably connected to one side inside the ink collection box (2). One end of the energy storage cylinder (4) is movably connected to a telescopic rod (41), and one end of the telescopic rod (41) is fixedly connected to a rotating block (411), which is rotatably connected to the movable seat (322).

2. The ink scraping assembly for a printing roller according to claim 1, characterized in that: The ink collection box (2) has slots (21) at both ends of its top, and the printing roller (1) is mounted on the ink collection box (2) by means of a shaft.

3. The ink scraping assembly for a printing roller according to claim 1, characterized in that: The bottom of the ink collection box (2) is provided with a first inclined plate (22) and a second inclined plate (23). One end of the ink collection box (2) is provided with an output port corresponding to the position of the second inclined plate (23), and a rubber sealing plug (24) is embedded in the output port of the ink collection box (2).

4. The ink scraping assembly for a printing roller according to claim 1, characterized in that: The bottom of the ink collection box (2) is fixedly connected to two support rods (25), and one end of the two support rods (25) is fixedly connected to a support plate (251).

5. The ink scraping assembly for a printing roller according to claim 1, characterized in that: The telescopic rod (41) extends into the energy storage cylinder (4) and is fixedly connected to a square limiting slider (412). A damping spring (413) is fixedly connected to the bottom of the square limiting slider (412), and one end of the damping spring (413) is fixedly connected to the inside of the energy storage cylinder (4).