Anti-blocking spray head of printing machine

Abstract

The utility model discloses an anti-blocking spray head of a printing machine, which comprises a spray head shell, a front end cover is arranged at the front end of the spray head shell, a plurality of uniformly distributed spray printing pores are arranged on the front end cover, a rear end cover is arranged at the rear end of the spray head shell, and an ink inlet communicated with an inner cavity of the spray head shell is fixedly arranged on the rear end cover. An ink inlet is formed in the nozzle shell, a first electric control valve is fixedly installed on the ink inlet, a filter plate is arranged in the nozzle shell, an air inlet pipe communicated with a cavity below the filter plate is fixedly installed on one side of the nozzle shell, a second electric control valve is fixedly installed on the air inlet pipe, and a branch pipe communicated with the air inlet pipe is fixedly installed on one side of the air inlet pipe; and a third electric control valve is fixedly installed on the branch pipe, one end of the air inlet pipe is connected with an air pump, a slag discharging opening is fixedly installed on one side of the spray head shell and communicates with a cavity above the filter plate, and a fourth electric control valve is fixedly installed at the slag discharging opening. Blockage clearing can be carried out without disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to an anti-blocking nozzle of a printing machine. Background Art

[0002] Digital printing machines have broken through the bottleneck of digital printing technology, and have achieved the real meaning of printing from one sheet, without plate making, and full-color images completed at one time. The extremely low printing cost and high-quality printing effect are more economical and convenient than the traditional printing system. The system has a greater market prospect due to the extremely low system investment, digital operation mode and limited space occupation. It is the best supplement to traditional printing and a replacement product for traditional printing machines. The nozzle is an important part of the printing machine. Under the control of the inkjet controller, the nozzle heats the inkjet and maintains a stable viscosity on the material by the method of thermal foaming or ceramic piezoelectric to achieve the printing effect. However, when the printing nozzle is used, some impurities in the ink may block the liquid outlet pores in the nozzle, affecting the printing efficiency. Generally, it needs to be manually disassembled for cleaning, which is very inconvenient. Utility Model Content

[0003] The purpose of the present application is to provide a printing machine anti-clogging nozzle to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a printing machine anti-clogging nozzle, comprising a nozzle housing, a front end cover is installed at the front end of the nozzle housing, a plurality of evenly distributed printing pores are opened on the front end cover, a rear end cover is installed at the rear end of the nozzle housing, an ink inlet connected to the inner cavity of the nozzle housing is fixedly installed on the rear end cover, a first electrically-controlled valve is fixedly installed on the ink inlet, a filter plate is provided inside the nozzle housing, an air inlet pipe leading to a chamber below the filter plate is fixedly installed on one side of the nozzle housing, a second electrically-controlled valve is fixedly installed on the air inlet pipe, a branch pipe connected to the air inlet pipe is fixedly installed on one side of the air inlet pipe, a third electrically-controlled valve is fixedly installed on the branch pipe, one end of the air inlet pipe is connected to an air pump, a slag discharge port is fixedly installed on one side of the nozzle housing, the slag discharge port is connected to the upper chamber of the filter plate, and a fourth electrically-controlled valve is fixedly installed at the slag discharge port.

[0005] Preferably, a connecting rod is fixedly installed on the inner side of the rear end cover, the other end of the connecting rod is fixedly connected to the filter plate, and the rear end cover is detachably connected to the nozzle housing by screws.

[0006] Preferably, a plurality of evenly distributed electric heating tubes are fixedly mounted on the top of the filter plate, and each of the electric heating tubes is connected in series and electrically connected to an external power source.

[0007] Preferably, the front end cover is detachably connected to the nozzle housing via screws.

[0008] Preferably, the air pump, the first electrically controlled valve, the second electrically controlled valve, the third electrically controlled valve and the fourth electrically controlled valve are electrically connected to an external power source.

[0009] Preferably, the printing pores are distributed in an array.

[0010] In summary, the technical effects and advantages of the utility model are:

[0011] In the utility model, ink is introduced through the ink inlet, and the ink is filtered by the filter plate and then sprayed out from the printing pores of the front end cover to achieve printing. When clearing and maintenance are required, the first electrically controlled valve is closed, and the second electrically controlled valve, the third electrically controlled valve and the fourth electrically controlled valve are opened. The air pump blows high-pressure gas into the nozzle housing, and the high-pressure gas blows out impurities on the filter plate from the slag discharge port, and the high-pressure gas blows out blockages in the printing pores of the front end cover, so maintenance is very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the structure of an anti-blocking nozzle of a printing machine in an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the filter plate and electric heating tube structure of an anti-blocking nozzle of a printing machine in an embodiment of the present application.

[0015] In the figure: 1. Nozzle housing; 2. Rear end cover; 3. Front end cover; 4. Printing pores; 5. Ink inlet; 6. First electric-controlled valve; 7. Air inlet pipe; 8. Second electric-controlled valve; 9. Branch pipe; 10. Third electric-controlled valve; 11. Filter plate; 12. Connecting rod; 13. Air pump; 14. Slag discharge port; 15. Fourth electric-controlled valve; 16. Electric heating tube. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure 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 cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0019] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0020] Example: Reference Figure 1-2The anti-clogging nozzle of a printing press shown in the figure comprises a nozzle housing 1, a front end cover 3 is installed at the front end of the nozzle housing 1, a plurality of evenly distributed printing pores 4 are opened on the front end cover 3, a rear end cover 2 is installed at the rear end of the nozzle housing 1, an ink inlet 5 connected to the inner cavity of the nozzle housing 1 is fixedly installed on the rear end cover 2, a first electric control valve 6 is fixedly installed on the ink inlet 5, a filter plate 11 is provided inside the nozzle housing 1, an air inlet pipe 7 leading to the chamber below the filter plate 11 is fixedly installed on one side of the nozzle housing 1, a second electric control valve 8 is fixedly installed on the air inlet pipe 7, a branch pipe 9 connected to the air inlet pipe 7 is fixedly installed on one side of the air inlet pipe 7, and the branch valve 6 is fixedly installed on the branch valve 6. A third electrically-controlled valve 10 is fixedly installed on the tube 9, an air pump 13 is connected to one end of the air inlet pipe 7, a slag discharge port 14 is fixedly installed on one side of the nozzle housing 1, the slag discharge port 14 is communicated with the upper chamber of the filter plate 11, and a fourth electrically-controlled valve 15 is fixedly installed at the slag discharge port 14. Ink is introduced through the ink inlet, and the ink is filtered by the filter plate and then sprayed out from the printing pores of the front end cover to achieve printing. When clearing and maintenance are required, the first electrically-controlled valve is closed, and the second electrically-controlled valve, the third electrically-controlled valve and the fourth electrically-controlled valve are opened. The air pump blows high-pressure gas into the nozzle housing, and the high-pressure gas blows out impurities on the filter plate from the slag discharge port, and the high-pressure gas blows out the blockages in the printing pores of the front end cover, so maintenance is very convenient.

[0021] By means of the above structure: a connecting rod 12 is fixedly installed on the inner side of the rear end cover 2, the other end of the connecting rod 12 is fixedly connected to the filter plate 11, and the rear end cover 2 is detachably connected to the nozzle housing 1 by screws, so that the filter plate can be removed and replaced after the rear end cover is removed.

[0022] With the above structure: a plurality of evenly distributed electric heating tubes 16 are fixedly mounted on the top of the filter plate 11, each of the electric heating tubes 16 is connected in series and electrically connected to an external power supply, and the incoming ink is heated by the electric heating tubes to ensure its reliable fluidity and the printing effect.

[0023] By means of the above structure: the front end cover 3 is detachably connected to the nozzle housing 1 via screws.

[0024] By means of the above structure, the air pump 13 , the first electrically controlled valve 6 , the second electrically controlled valve 8 , the third electrically controlled valve 10 and the fourth electrically controlled valve 15 are electrically connected to an external power source.

[0025] With the above structure, the printing pores 4 are distributed in an array.

[0026] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing machine anti-blocking nozzle, comprising a nozzle housing (1), characterized in that: A front end cover (3) is installed at the front end of the nozzle housing (1), and a plurality of uniformly distributed printing pores (4) are provided on the front end cover (3). A rear end cover (2) is installed at the rear end of the nozzle housing (1), and an ink inlet (5) connected to the inner cavity of the nozzle housing (1) is fixedly installed on the rear end cover (2), and a first electric control valve (6) is fixedly installed on the ink inlet (5). A filter plate (11) is provided inside the nozzle housing (1), and a nozzle (11) is fixedly installed on one side of the nozzle housing (1) to pass through the bottom of the filter plate (11). An air inlet pipe (7) of the chamber, a second electrically controlled valve (8) is fixedly mounted on the air inlet pipe (7), a branch pipe (9) connected thereto is fixedly mounted on one side of the air inlet pipe (7), a third electrically controlled valve (10) is fixedly mounted on the branch pipe (9), an air pump (13) is connected to one end of the air inlet pipe (7), a slag discharge port (14) is fixedly mounted on one side of the nozzle housing (1), the slag discharge port (14) is connected to the chamber above the filter plate (11), and a fourth electrically controlled valve (15) is fixedly mounted at the slag discharge port (14).

2. The anti-blocking nozzle of a printing press according to claim 1, characterized in that: A connecting rod (12) is fixedly mounted on the inner side of the rear end cover (2), the other end of the connecting rod (12) is fixedly connected to the filter plate (11), and the rear end cover (2) is detachably connected to the nozzle housing (1) via screws.

3. The anti-blocking nozzle of a printing press according to claim 1, characterized in that: A plurality of evenly distributed electric heating tubes (16) are fixedly mounted on the top of the filter plate (11), and each of the electric heating tubes (16) is connected in series and electrically connected to an external power source.

4. The anti-blocking nozzle of a printing press according to claim 1, characterized in that: The front end cover (3) is detachably connected to the nozzle housing (1) via screws.

5. The anti-blocking nozzle of a printing press according to claim 1, characterized in that: The air pump (13), the first electrically controlled valve (6), the second electrically controlled valve (8), the third electrically controlled valve (10) and the fourth electrically controlled valve (15) are electrically connected to an external power source.

6. The anti-blocking nozzle of a printing press according to claim 1, characterized in that: The printing pores (4) are distributed in an array.

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