CN-224224762-U - Automatic circulation cleaning device for spray head and spray nozzle of UV ink jet printer

CN224224762UCN 224224762 UCN224224762 UCN 224224762UCN-224224762-U

Abstract

The utility model discloses a spray head of a UV ink jet printer and an automatic circulating cleaning device for a spray nozzle, which comprises a material box, wherein a workbench is arranged on the material box, the automatic circulating cleaning device also comprises a circulating conveying mechanism and a filtering mechanism, and an adjusting control part which controls a cleaning agent to clean the inside of the spray head and discharge the cleaning agent into the material box through ink inlets on any side when being opened and controls the cleaning agent to clean the spray nozzle and discharge the cleaning agent into the material box through the spray nozzle when being closed is arranged between the circulating conveying mechanism and the spray head of the UV ink jet printer. The utility model solves the practical problem that the production cost is high because the UV ink jet printer nozzle which cannot be cleaned by dripping ink can only be abandoned in the prior art, and solves the problems that the nozzle cleaning effect is not ideal, the cleaning efficiency is low and the nozzle is easy to damage because the nozzle is cleaned manually. The utility model solves the practical difficulties of printing enterprises in the spray printing work, saves the production cost and improves the production benefit.

Inventors

WANG LIN
Lv Xijin
WANG DEJUN
LI ZHAN
LI XIANGFENG
CUI HAOQUN

Assignees

颐中(青岛)印务有限公司

Dates

Publication Date: 20260512
Application Date: 20250522

Claims (10)

1. The automatic circulation cleaning device for the spray head and the spray nozzle of the UV ink jet printer is characterized by comprising a material box with an inner cavity for storing cleaning agents, a workbench for fixing the spray head of the UV ink jet printer, a circulation conveying mechanism which is connected with ink inlets on two sides of the spray head of the UV ink jet printer and the material box and used for conveying the cleaning agents in the material box into the spray head through the ink inlets on any side, is used for cleaning the spray head and the spray nozzle, a filtering mechanism for removing impurities in advance before the cleaning agents which are continuously sprayed out from the spray head or the spray nozzle in the cleaning process are returned into the spray head again, and an adjusting control part which is used for controlling the cleaning agents to clean the spray head and discharge the cleaning agents into the material box through the ink inlets on any side when being opened is arranged between the circulation conveying mechanism and the spray head of the UV ink jet printer.
2. The automatic circulation cleaning device for the spray head and the spray nozzle of the UV ink jet printer according to claim 1, wherein the circulation conveying mechanism comprises a liquid suction pipe communicated with the material box and a power pump connected with the liquid suction pipe and used for driving cleaning agent in the material box to be conveyed into the spray head of the UV ink jet printer, the output end of the power pump is connected with a liquid inlet pipe, the liquid inlet pipe is communicated with one of ink inlet openings on any side of the spray head of the UV ink jet printer, and the filtering mechanism is arranged on the liquid inlet pipe or the liquid suction pipe.
3. The automatic circulating cleaning device for the spray head and the spray nozzle of the UV ink jet printer according to claim 2, wherein the filtering mechanism comprises a primary filter and a secondary filter which are sequentially connected in series, the liquid inlet end of the primary filter is connected with the output end of the power pump through a liquid inlet pipe, and the liquid outlet end of the secondary filter is communicated with the ink inlet on any side of the spray head of the UV ink jet printer through the liquid inlet pipe.
4. The automatic circulating cleaning device for the spray head and the spray nozzle of the UV ink jet printer according to claim 2, wherein the filtering mechanism comprises a primary filter and a secondary filter which are sequentially connected in series, a liquid inlet end of the primary filter is connected with a liquid suction pipe, a liquid outlet end of the secondary filter is connected with a power pump through the liquid suction pipe, and an output end of the power pump is communicated with an ink inlet on any side of the spray head of the UV ink jet printer through the liquid inlet pipe.
5. The device for automatically cleaning the spray head and the spray nozzle of the UV ink jet printer according to claim 1, wherein the adjusting and controlling component comprises an adjusting pipeline, one end of the adjusting pipeline is connected with the other ink inlet on one side of the liquid inlet pipe connected with the spray head of the UV ink jet printer, the other end of the adjusting pipeline is connected with the inner cavity of the material box, the two ink inlets on the other side of the spray head of the UV ink jet printer are communicated to realize internal repeated cleaning, and a rotary valve for opening and closing the adjusting pipeline is arranged on the adjusting pipeline.
6. The automatic circulating cleaning device for the spray head and the spray nozzle of the UV ink-jet printer according to claim 5, wherein the workbench is provided with a liquid discharge port which is downwards extended into the inner cavity and used for controlling the cleaning agent after the cleaning is finished to flow into the material box from the spray head of the UV ink-jet printer when the rotary valve is opened, the other end of the adjusting pipeline is communicated with the liquid discharge port, and the rotary valve is arranged on the liquid discharge port.
7. The device for automatically cleaning the nozzle and the nozzle of the UV ink-jet printer according to claim 1, wherein the material box comprises a box body, an opening for adding and replacing cleaning agents and observing the impurity pollution degree of the cleaning agents is formed in the top of the box body, a cover plate covering the opening to form the workbench is arranged on the opening, a clamping groove for fixing the nozzle of the UV ink-jet printer is formed in the cover plate, and the nozzle of the UV ink-jet printer extends downwards into the inner cavity of the material box along the clamping groove.
8. The automatic circulating cleaning device for the spray head and the spray nozzle of the UV ink jet printer according to claim 7, wherein the cover plate comprises a fixed cover plate connected with a material box through screws, and a movable cover plate movably connected with the material box and convenient for adding and replacing cleaning agents and observing impurity pollution degrees of the cleaning agents, and the clamping groove is formed in the fixed cover plate.
9. The device for automatically cleaning the nozzle and the nozzle of the UV ink-jet printer according to claim 2, wherein the side wall of the material box, which is close to the side of the nozzle of the UV ink-jet printer, is provided with an inclined plate, the bottom of the inclined plate is inclined towards the direction of the inner cavity of the material box, the inclined plate and the side wall of the opposite side form an inner cavity with a funnel-shaped longitudinal section, the side wall of the opposite side is provided with a fixed pipe which extends outwards from the material box to the bottom of the inner cavity and is fixed on the side wall, and the liquid suction pipe is communicated with the fixed pipe.
10. The automatic circulating cleaning device for the spray head and the spray nozzle of the UV ink jet printer according to claim 1, wherein a control box for accommodating the circulating conveying mechanism and the filtering mechanism is arranged on one side of the material box, a power module electrically connected with the circulating conveying mechanism and a plug which is connected with the power module and extends out of the control box and is used for providing power are arranged in the control box, the control box comprises a box body with an opening on one side and a cover body matched with the opening on one side, a heat dissipation groove is formed in the upper portion of the cover body, a radiator for automatically controlling the temperature of the circulating conveying mechanism is arranged on the lower portion of the cover body, and the radiator is in signal connection with the power module through a temperature sensor.

Description

Automatic circulation cleaning device for spray head and spray nozzle of UV ink jet printer Technical Field The utility model relates to the field of code spraying equipment, in particular to an automatic circulation cleaning device for a spray head and a spray nozzle of a UV code spraying machine. Background With the rapid development of social economy, the living standard of people is increasingly improved, and the demands of consumers on the product quality, safety and traceability are increasingly increased. In the aspects of product identification and traceability, the ink jet printer plays a key role. The method can provide clear, accurate and difficultly tampered identification for various commodities, so that a consumer can conveniently acquire relevant information of the products, and the method becomes important equipment in modern industrial production. At present, the basic working principle of the ink jet printer is that an ink system (parts such as an ink barrel, a filter, a pump and the like) is utilized to provide stable and continuous ink supply for a nozzle, the ink is ejected through the nozzle under the pressure action of the ink supply pump to form continuous ink flow, a control system precisely controls the nozzle to eject according to preset code ejecting content and the moving speed of a product, and the ink is precisely ejected to the surface of the product in a form of tiny liquid drops, so that a required mark is formed. The inks used by the existing ink jet printer are classified into water-based ink, oil-based ink, ultraviolet light curing ink and solvent-based ink according to types, and the application directions and advantages of different inks are different. The ultraviolet light curing ink (UV ink) has the characteristics of instant curing, high drying speed, high resolution, good adhesive force and the like, and is suitable for high-requirement code spraying occasions, such as two-dimensional codes on cigarette packaging boxes. In the process of jet printing, the UV ink jet printer is very small in aperture of a nozzle on a jet head and even smaller than the diameter of a human hair. Once the impurities or the dry ink appear in the ink, the spray head and the spray nozzle can be thoroughly blocked, so that quality problems such as white lines, ink blurring and the like appear in the two-dimensional code printed by spraying, and the code cannot be normally sprayed as shown in fig. 1. According to the technical analysis, the main reasons are as follows, as shown in fig. 2: (1) And the ink dry and hard blocks the spray head, namely, if the environment temperature is too high and the spray head is idle after long-time shutdown, no protective measures are added to the spray head, the ink in the spray head is naturally dry and hard, the spray head is cleaned by dripping the ink, and the spray head is easy to discard. (2) And the photo-curing blocking spray head is characterized in that the spray head is exposed to ultraviolet rays for a long time, and the UV ink is cured and condensed, so that the spray head and the spray nozzle are blocked. (3) The dirt-blocking spray head is that a great amount of dust and paper wool in the air are easy to adhere to the periphery of the spray hole along with the airflow, so that the spray nozzle is blocked. The problem of nozzle and nozzle jam can be generally solved through the washing of ink droplet, but if wash ineffectively, need return the producer and wash, producer washs expense and long time, influences board production, and from the past, the shower nozzle result of use after wasing is also bad and deliberate, and some shower nozzles can't wash and only can change, has consequently increased the manufacturing cost of enterprise. At present, the patent technology for cleaning the spray head and the spray nozzle of the ink jet printer is as follows: CN202823958U discloses an automatic cleaning device for a spray head of a code spraying machine, comprising a spray head cleaning cover (1) for accommodating the spray head of the code spraying machine, a gas supply device (3) connected with the spray head cleaning cover (1) through a gas pipe (8), a liquid conveying device (2) connected with the spray head cleaning cover (1) through a disinfectant liquid inlet pipe (61), a cleaning agent storage device (7) connected with the liquid conveying device (2) through a disinfectant liquid outlet pipe (62), a control device (4) for controlling the gas supply device (3) and the liquid conveying device (2) to operate, a liquid nozzle (12) for flushing the spray head of the code spraying machine and a gas nozzle (11) for drying the spray head of the code spraying machine are arranged in the spray head cleaning cover (1), the gas nozzle (11) is communicated with the gas pipe (8), and the liquid nozzle (12) is communicated with the disinfectant liquid inlet pipe (61). CN213472562U discloses a convenient ink jet numbering machine who washs shower nozzle