Scraper cavity for satellite type flexo printing machine
By designing the scraper cavity structure in a satellite flexo printer, scraping off excess ink from the anilox roller and keeping the stopper moist, the problem of ink flying out and agglomeration is solved, and efficient printing and stable equipment operation is achieved.
Patent Information
- Application Number
- CN202422492816.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-10-15
AI Technical Summary
In satellite flexo printing machines, when the anilox roller is running at high speed, the ink is prone to fly out and agglomeration, resulting in a decrease in printing quality and equipment shutdown, which is difficult to effectively solve the problem of the existing technology.
A scraper cavity structure is designed, including an upper scraper and a lower scraper, equipped with a stopper and a drip pipe. By scraping off excess ink and keeping the stopper moist, preventing high-temperature agglomeration, the ink is recovered using a circulation system, and combined with a temperature adjustment device to reduce friction heat.
Effectively prevent ink from flying out and agglomerating, save ink costs, reduce equipment failures, maintain printing quality, and improve production efficiency.
Smart Images
Figure CN223161525U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flexographic printing machines, in particular to a doctor blade chamber for a satellite flexographic printing machine. Background Technique
[0002] With the development of flexographic printing technology, flexographic printing, especially the satellite flexographic printing method, occupies a large share of the printing industry with advantages such as accurate overprinting and no wrinkling during the printing process of relatively thin substrates. With the increasing demand and the popularization of intelligentization, the speed increase of satellite flexographic printing machines has become a major trend in the industry; in actual production, due to the special requirements of the printed layout of products, the anilox roll in the printing machine needs to reach a certain line number to ensure the required ink supply for printing. At this time, the centrifugal force of the ink in the anilox cells of the anilox roll will also increase synchronously when the printing machine runs at high speed, and the ink in the anilox cells will be thrown out from both ends, causing ink flying. At the same time, the two side blocks of the doctor blade chamber and the anilox roll rub against each other for a long time, and the temperature is too high, resulting in the rapid caking of the ink. It is necessary to stop the machine to deal with the accumulated ink blocks, and the increase in temperature will also cause changes in the viscosity of the ink, thus further affecting the ink supply; therefore, a doctor blade chamber for a satellite flexographic printing machine is needed. Content of the Utility Model
[0003] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a doctor blade chamber for a satellite flexographic printing machine, which can avoid ink flying at both ends when the anilox roll runs at high speed, keep the two side blocks of the doctor blade chamber moist, prevent the temperature from rising due to long-term friction between the side blocks and the anilox roll during high-speed operation, and avoid ink caking.
[0004] The above technical purpose of the utility model is achieved through the following technical solutions: A doctor blade chamber for a satellite flexographic printing machine is installed on the side of the anilox roll, including a cavity, a housing is arranged on the cavity, scraping members are arranged at both ends of the cavity, the scraping members include an upper doctor blade and a lower doctor blade, the upper doctor blade and the lower doctor blade are connected to the housing through fixing members, a side block is arranged at both ends of the cavity and between the upper doctor blade and the lower doctor blade, and a drip pipe is arranged above the side block.
[0005] In some embodiments, a sliding groove is opened on the housing, and the sliding groove is slidably connected with the upper doctor blade and the lower doctor blade, and grooves are arranged at the ends of the housing close to the upper doctor blade and the lower doctor blade.
[0006] In some embodiments, two guiding blades are welded at both ends of the upper doctor blade and the lower doctor blade, and the two guiding blades are arranged in a stepped manner, and the two guiding blades are inclined towards the inner side of the cavity.
[0007] In some embodiments, the shorter one of the two guiding blades at both ends of the upper squeegee is close to the anilox roll, and the shorter one of the two guiding blades at both ends of the lower squeegee is far from the anilox roll.
[0008] In some embodiments, a flow valve is installed on the drip water pipe.
[0009] In some embodiments, the water dripping port of the drip water pipe is in a sharp cone shape.
[0010] In some embodiments, a temperature regulating device is arranged in the cavity.
[0011] In summary, the utility model has the following beneficial effects:
[0012] Through the ink scraping members at both ends of the squeegee cavity, the utility model uses the stoppers to block and scrape off the excess ink at the ends of the anilox roll, avoiding the flying ink at both ends of the anilox roll when the machine is running at high speed, which not only saves the ink cost but also reduces the waste caused by the splashing ink. At the same time, with the dripping and wetting of the drip water pipe, the humidity at the contact part between the ink scraping member and the anilox roll is maintained, preventing the ink from drying and caking due to the increase in temperature during the high-speed operation of the machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 is a schematic diagram of a partial structure of the utility model;
[0015] Figure 3 is a schematic diagram of the structure of the upper squeegee of the utility model.
[0016] In the figure: 1, cavity; 11, outer shell; 12, groove; 2, ink scraping member; 21, upper squeegee; 22, lower squeegee; 23, fixing member; 24, stopper; 3, drip water pipe; 4, flow valve; 5, anilox roll. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0018] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0019] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.
[0020] See Figures 1 - 3 , a doctor blade chamber for a satellite flexographic printing press, which is installed on the side of an anilox roll 5 and includes a chamber body 1. A housing 11 is provided on the chamber body 1. Doctor blade members 2 are provided at both ends of the chamber body 1. The doctor blade members 2 include an upper doctor blade 21 and a lower doctor blade 22. The upper doctor blade 21 and the lower doctor blade 22 are connected to the housing 11 through fixing members 23. A stop block 24 is provided at both ends of the chamber body 1 and between the upper doctor blade 21 and the lower doctor blade 22. A drip pipe 3 is provided above the stop block 24. A circulation system is also provided inside the chamber body 1. Taking one end of the chamber body 1 as an example, during use, an operator controls the drip pipe 3 to drip water towards the place where the stop block 24 is close to the anilox roll 5, so as to maintain the humidity of the ink between the anilox roll 5 and the stop block 24 and cool the stop block 24, avoiding the ink from condensing into ink blocks due to the high temperature generated by the friction between the stop block 24 and the anilox roll 5. Moreover, the stop block 24 can also absorb moisture for moisture retention. At the same time, the upper doctor blade 21 and the lower doctor blade 22 can scrape off the excess ink on the anilox roll when the anilox roll 5 rotates, thus avoiding the situation of ink splashing when the anilox roll 5 rotates at a high speed. The excess ink will enter the ink tank of the chamber body 1 for reuse. The circulation system is composed of existing pipes and pumps and will not be elaborated here. The same applies to the other end, cooling the stop block 24 and maintaining the humidity between the stop block 24 and the anilox roll 5, jointly preventing the situation that the ink caking occurs due to the high temperature generated by the friction between both ends of the anilox roll 5 and the stop block 24.
[0021] In some embodiments, a chute is formed on the housing 11, and the upper blade 21 and the lower blade 22 are slidably connected to the chute. A groove 12 is provided at the end of the housing 11 near the upper blade 21 and the lower blade 22. When an operator installs or disassembles the upper blade 21 and the lower blade 22, the fixing member 23 is loosened so that it no longer presses on the upper blade 21 and the lower blade 22, and then the upper blade 21 and the lower blade 22 can be pushed outwards from the chute with the thumb. The operation is simple and convenient, which improves the installation rate. The fixing member 23 can be a bolt, but is not limited thereto.
[0022] In some embodiments, two guiding blades 25 are welded to both ends of the upper blade 21 and the lower blade 22, and the two guiding blades 25 are arranged in a stepped manner. The two guiding blades 25 are inclined towards the inner side of the cavity 1. The shorter one of the two guiding blades 25 at both ends of the upper blade 21 is close to the anilox roll 5, and the shorter one of the two guiding blades 25 at both ends of the lower blade 22 is far from the anilox roll 5. There is a gap between the two guiding blades 25 and the upper blade 21 and the lower blade 22. When the anilox roll 5 rotates, when the excess ink is scraped off by the upper blade 21, most of it enters the ink tank in the cavity 1 and is reused through the circulation system. The circulation system is a prior art and will not be elaborated here. A small amount of ink will flow to both ends of the upper blade 21 and the lower blade 22. At this time, the two guiding blades 25 at both ends of the upper blade 21 and the lower blade 22 can not only block this ink, but also guide the water dripped by the drip pipe 3, so that it enters the baffle 24 together with this ink.
[0023] In some embodiments, a flow valve 4 is installed on the drip pipe 3. The operator can control the dripping rate of the drip pipe 3 through the flow valve 4, so as to balance the proportion of the ink on the anilox roll 5, which can not only ensure that the ink does not dry, but also does not dilute the ink, ensuring the printing effect.
[0024] In some embodiments, the water dripping port of the drip pipe 3 is conical. The conical water dripping port of the drip pipe 3 can not only accurately drop the water at the contact position between the anilox roll 5 and the baffle 23, but also ensure that the dripped water is spherical and is not likely to splash over a large area and affect the printing effect.
[0025] In some embodiments, a temperature regulating device is provided in the cavity 1. The temperature regulating device adjusts the temperature of the blade cavity through an external constant temperature coolant. This is a prior art and will not be elaborated here.
[0026] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications without creative contributions to this embodiment after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.
Claims
1. A doctor blade chamber for a satellite flexographic printing press, which is installed on the side of an anilox roll (5), and is characterized in that: It includes a cavity (1), on which a housing (11) is provided. Scraping members (2) are provided at both ends of the cavity (1). The scraping member (2) includes an upper scraper (21) and a lower scraper (22). The upper scraper (21) and the lower scraper (22) are connected to the housing (11) through a fixing member (23). A stopper (24) is provided at both ends of the cavity (1) and between the upper scraper (21) and the lower scraper (22). A drip pipe (3) is provided above the stopper (24).
2. The doctor blade chamber for a satellite flexographic press according to claim 1, characterized in that: A chute is formed on the housing (11), and the chute is slidably connected to the upper scraper (21) and the lower scraper (22). A groove (12) is provided at the end of the housing (11) near the upper scraper (21) and the lower scraper (22).
3. The doctor blade chamber for a satellite flexographic printing press according to claim 1, wherein: Two guiding blades (25) are welded to both ends of the upper scraper (21) and the lower scraper (22), and the two guiding blades (25) are arranged in a stepped manner. The two guiding blades (25) are inclined towards the inner side of the cavity (1).
4. A doctor blade chamber for a satellite flexographic printing press according to claim 3, wherein: The shorter one of the two guiding blades (25) at both ends of the upper scraper (21) is close to the anilox roll (5), and the shorter one of the two guiding blades (25) at both ends of the lower scraper (22) is away from the anilox roll (5).
5. A doctor blade chamber for a satellite flexographic printing press according to claim 1, characterized in that: A flow valve (4) is installed on the drip pipe (3).
6. A doctor blade chamber for a satellite flexographic printing press according to claim 1, characterized in that: The drip orifice of the drip pipe (3) is conical.
7. A doctor blade chamber for a satellite flexographic printing press according to claim 1, characterized in that: A temperature regulating device is provided inside the cavity (1).