CN205890192U - Automatic printing of corrugated paper is with inking, time black device - Google Patents

Abstract

The utility model discloses an inking and ink returning device for automatic printing of corrugated paper, which comprises an ink barrel, a solenoid valve, a two-way diaphragm pump, a cavity tray, an anilox roller, and an ink scraping cavity, and the ink barrel is connected through a pipeline. The solenoid valve and the solenoid valve are connected to the two-way diaphragm pump through the pipeline. The two-way diaphragm pump is connected to the solenoid valve through the pipeline. Connected to the ink barrel through pipelines, one side of the anilox roller is connected to the scraping cavity, and a cavity tray is set under the scraping cavity, and the cavity tray contacts the arc surface of the anilox roller; it has a simple structure , can minimize the dead angle of the pipeline, facilitate cleaning, save printing ink, use small air pressure, and greatly reduce the cost.

Description

An ink filling and ink returning device for automatic printing of corrugated paper

technical field

The utility model relates to the technical field of printing and automatic machinery, in particular to an ink filling and ink returning device for automatic printing of corrugated paper.

Background technique

Corrugated paper water-based printing machines mostly use closed ink scraping systems when printing high-line patterns. Due to the characteristics of high-screen line printing itself that the cell density is large and the ink load is small, the cells of the ceramic anilox roller are easily blocked, or even completely blocked. This requires that the printing speed is fast when ink is applied, and the speed is also fast when returning ink. Ordinary ink supply is supplied by a pneumatic diaphragm pump. When the ink is returned, the ink flows back to the ink barrel naturally through the ink fountain and ink tube; when cleaning, the water source is provided by the cleaning pipeline for cleaning. Its scope of application is generally within 180-300 lines per square inch, and all the features of high screen line printing require fast ink filling and ink return, and fast cleaning must also be done, so ordinary diaphragm pumps cannot be used for ink supply. of.

In the early days, the ink supply system of the closed scraping system basically used a peristaltic pump to supply ink. This is the case both at home and abroad, but after a long period of use, the suction tube of the peristaltic pump is easily broken after medium and long-term use, and no matter whether it is made of expensive silicone rubber tube or other materials, it cannot To solve the above problems, once there is a problem with inking, the whole machine will be paralyzed, and the ceramic anilox roller with high mesh line is extremely easy to cause cell blockage. So many companies are reluctant to use ink scraping systems.

Utility model content

In order to overcome the deficiencies of the prior art above, the utility model provides a simple structure, which can realize ink filling and ink return by using a bidirectional diaphragm pump and a double electric stainless steel solenoid valve.

The technical scheme adopted in the utility model is:

An inking and ink returning device for automatic printing of corrugated paper, comprising an ink barrel, a solenoid valve, a two-way diaphragm pump, a cavity tray, an anilox roller, and an ink scraping cavity, and the ink barrel is connected to a solenoid valve and a solenoid valve through a pipeline The two-way diaphragm pump is connected to the two-way diaphragm pump through the pipeline, and the two-way diaphragm pump is connected to the solenoid valve through the pipeline. The solenoid valve is connected to the ink scraping chamber through the pipeline. An ink barrel, both sides of the anilox roller are connected to a scraping cavity, and a cavity tray is arranged under the scraping cavity, and the cavity tray contacts the arc surface of the anilox roller.

Further, the cavity tray adopts a symmetrical structure and is arranged on both sides of the anilox roller to ensure that the anilox roller is more stable when rotating, and the printing ink is recovered more thoroughly, which prevents the ink from dripping onto the surface of the printed matter, affecting Print board quality.

Further, the ink scraping cavity adopts a symmetrical structure and is arranged on both sides of the anilox roller to promote more uniform ink scraping. The excess ink on the surface of the anilox roller is scraped off by the scraper, concentrated on the scraper tray, and recycled Reuse.

Further, the inking stage: In the inking stage of the machine, the left electromagnet acts, and the bidirectional diaphragm pump sends the printing ink from the ink barrel directly to the scraping chamber for printing.

Further, the middle position: when the machine is in the non-up ink return stage, the left electromagnet and the right electromagnet are both in the middle position, and the machine is in a non-working inspection state.

Further, the ink return stage: it is the ink return cleaning stage when the machine is shut down, the right electromagnet acts, and the bidirectional diaphragm pump sucks the ink from the ink scraping cavity into the ink barrel.

Further, in the cleaning stage, the cleaning water enters the ink scraping cavity from the inking pipeline, and after cleaning, the cleaned dirty water is sucked back into the ditch.

Further, in the overflow pipeline, ink or water overflowing from the scraping cavity flows into the cavity tray, flows into the overflow pipeline from both ends of the cavity, and then flows back into the ink barrel from the lower end of the machine.

Compared with the prior art, the beneficial effect of the utility model is: using a two-way diaphragm pump to meet the requirements of ink filling and ink return, not only can simplify the pipeline, ensure the time of ink filling and ink return, but also reduce excessive ink printing The time of contact with the pipeline minimizes the dead angle of the pipeline and facilitates cleaning; each time the color of the ink is changed, the unnecessary waste can be correspondingly reduced; if two bidirectional diaphragm pumps are used, not only ink The pipelines are complicated, and the gas consumption of the whole machine increases sharply, because each color group needs one more pipeline. If a 5-color printing machine needs 5 more two-way diaphragm pumps, the gas pressure of many pneumatic pipelines cannot guarantee the normal operation of the machine. work; the solution is to increase the air supply volume of the air compressor, so that the noise of the machine will increase, and the cost of the machine will also increase a lot; and the symmetrical structure of the scraping cavity and cavity tray is used to promote the quality of the printed matter surface. Concentrated recovery of excess printing ink for recycling and reuse saves a lot of production costs and reduces the generation of defective products. This device completely solves the above-mentioned problems in various aspects and fully meets the needs of the ink scraping system in high screen line water-based printing ink. Ink and ink return problems, and this has played a very important role in replacing offset printing with water-based ink printing.

Description of drawings

Fig. 1 is a schematic diagram of the working structure of the inking stage of an inking and ink returning device for automatic printing of corrugated paper;

Fig. 2 is a schematic diagram of the working structure of the intermediate position of the ink filling and ink return device for automatic printing of corrugated paper;

Fig. 3 is a schematic diagram of the working structure of the ink return stage of an inking and ink return device for automatic printing of corrugated paper.

detailed description

An inking and ink returning device for automatic printing of corrugated paper, comprising an ink barrel 1, a solenoid valve 2, a two-way diaphragm pump 3, a cavity tray 4, an anilox roller 5, and a scraping cavity 6. The ink barrel 1 passes through a tube Solenoid valve 2, solenoid valve 2 are connected to two-way diaphragm pump 3 through pipelines, two-way diaphragm pump 3 is connected to solenoid valve 4 through pipelines, solenoid valve 4 is connected to ink scraping chamber 6 through pipelines, and ink scraping chamber 6 is connected to Pipeline to the cavity tray 4, the cavity tray 4 is connected to the ink barrel 1 through the pipeline, one side of the anilox roller 5 is connected to the scraping cavity 6, and the cavity tray is set under the scraping cavity 6 4. The cavity tray 4 contacts the arc surface of the anilox roller 5 .

Further, the cavity tray 4 adopts a symmetrical structure and is arranged on both sides of the anilox roller 5, so as to ensure that the anilox roller 5 is more stable when rotating, and the printing ink is recovered more thoroughly, and the printing ink is prevented from dripping onto the surface of the printed matter. On, affect the quality of printed matter board.

Further, the scraping chamber 6 adopts a symmetrical structure and is arranged on both sides of the anilox roller 5 to promote more uniform scraping. The excess ink on the surface of the anilox roller 5 is scraped off by a scraper and concentrated on the scraping roller. Tray 4, recycled.

Further, inking stage: In the inking stage of the machine, the left electromagnet 201 operates, and the two-way diaphragm pump 3 sends the ink from the ink barrel 1 directly to the scraping chamber 6 for printing.

Further, the middle position: when the machine is in the non-upper ink return stage, the left electromagnet 201 and the right electromagnet 202 are all in the middle position, and the machine is in the non-working inspection state.

Further, the ink return stage: it is the ink return cleaning stage when the machine is shut down, the right electromagnet 202 operates, and the bidirectional diaphragm pump 3 sucks the ink from the ink scraping cavity 6 into the ink barrel 1 .

Further, in the cleaning stage, the cleaning water enters the ink scraping chamber 6 from the ink feeding pipeline, and after the cleaning is completed, the cleaned dirty water is sucked back into the ditch.

Further, in the overflow pipeline, ink or water overflowing from the scraping chamber 6 flows into the cavity tray 4, and flows into the overflow pipeline from both ends of the cavity, and then flows back to the ink barrel 1 from the lower end of the machine middle.

Claims (3)

1. a kind of corrugated paper automatic printing inking, return black device, include ink bucket, magnetic valve, Bidirectional diaphragm pump, cavity pallet, Anilox roll, wiping cavity it is characterised in that described ink bucket pass through pipeline connection magnetic valve, magnetic valve connected by pipeline two-way Membrane pump, Bidirectional diaphragm pump connect magnetic valve by pipeline, and magnetic valve is connected to wiping cavity by pipeline, and wiping cavity connects To cavity pallet, cavity pallet is connected to black bucket by pipeline to pipeline, and described anilox roll both sides are all connected with wiping cavity, in institute State setting cavity pallet below wiping cavity, described cavity pallet contacts anilox roll cambered surface.

2. according to claim 1 a kind of corrugated paper automatic printing inking, return black device it is characterised in that described chamber Body pallet adopts symmetrical structure, is arranged on the both sides of anilox roll.

3. according to claim 1 a kind of corrugated paper automatic printing inking, return black device it is characterised in that described scrapes Black cavity adopts symmetrical structure, is arranged on the both sides of anilox roll.