Search

CN-121973558-A - Local atmosphere control method of ink-jet printing equipment and application

CN121973558ACN 121973558 ACN121973558 ACN 121973558ACN-121973558-A

Abstract

The invention discloses a local atmosphere control method and application of ink-jet printing equipment, relating to the technical field of ink-jet printing equipment, comprising a bearing base, an adjustable ink-jet assembly and a temperature-humidity water oxygen sensor, the top of the bearing base table is symmetrically and fixedly provided with an object carrying table, and the top of the object carrying table on the right side is symmetrically provided with positioning clamping grooves. According to the local atmosphere control method and application of the ink jet printing equipment, the influence of external air on ink drops and an ink jet process is effectively isolated through the protection of inert gases such as nitrogen, argon and the like or the atmosphere environment of low oxygen and low water, the interference of the external air on the ink drops and film formation is effectively isolated, the printing quality and stability are improved, the spray head is protected from being corroded by water and oxygen and polluted by impurities to a certain extent, the service life of the ink jet head is prolonged, the printing, the front, back, left and right movements of the ink jet head are not influenced while the atmosphere control is realized, and the flexibility and the accuracy of the ink jet head in a full-range working area are effectively ensured.

Inventors

  • HUANG YUELONG
  • HOU TIAN
  • JIA WEIKUAN
  • LI SHUPING

Assignees

  • 湖州市鹑火光电有限公司

Dates

Publication Date
20260505
Application Date
20260126

Claims (10)

  1. 1. The local atmosphere control method for the ink jet printing equipment is characterized by being applied to a local atmosphere control device, the local atmosphere control device comprises a bearing base (1), an adjusting type ink jet assembly (5) and a temperature, humidity and oxygen sensor (9), an object carrying table (2) is symmetrically and fixedly arranged at the top of the bearing base (1), positioning clamping grooves (3) are symmetrically formed in the top of the object carrying table (2) on the right side, a sealing protective cover (4) is fixedly arranged on the outer surface of the object carrying table (2), the adjusting type ink jet assembly (5) is movably arranged in the sealing protective cover (4), a connecting support (6) is fixedly arranged on the inner surface of the sealing protective cover (4), an annular rubber film (7) is embedded and arranged in the connecting support (6) at equal intervals, a gas replacement pipe (8) is embedded and arranged on the back surface of the sealing protective cover (4), and the temperature, humidity and oxygen sensor (9) is fixedly arranged on the side of the sealing protective cover (4).
  2. 2. A local atmosphere control method of an inkjet printing apparatus according to claim 1, wherein the regulating type inkjet assembly (5) comprises an electric telescopic rod (51), the electric telescopic rod (51) is symmetrically and fixedly mounted on the top inner surface of the sealing shield (4), a connecting plate (52) is fixedly mounted at the extending end of the electric telescopic rod (51), a sealing mechanism (53) is symmetrically mounted at the bottom of the connecting plate (52), a bearing bracket (54) is symmetrically and fixedly mounted at the bottom of the connecting plate (52), an electric push rod (55) is fixedly connected inside the bearing bracket (54), a front-rear regulating mechanism (56) is fixedly connected at the extending end of the electric push rod (55), and a movable inkjet mechanism (57) is movably mounted at the bottom of the front-rear regulating mechanism (56).
  3. 3. A local atmosphere control method of an ink jet printing apparatus according to claim 2, wherein the sealing mechanism (53) comprises a sealing plate (531), wherein the bottom of the sealing plate (531) is fixedly provided with locking bars (532) at equal distances, rectangular sliding bars (533) are symmetrically arranged on both sides of the sealing plate (531), the outer dimensions of the locking bars (532) are matched with the inner dimensions of the positioning clamping grooves (3), and the locking bars (532) form a clamping structure with the object placing carrier (2) through the positioning clamping grooves (3).
  4. 4. A local atmosphere control method of an ink jet printing apparatus according to claim 3, characterized in that the side of the sealing plate (531) is fixedly connected with the inner side of the rectangular slide bar (533), the outer surface of the rectangular slide bar (533) is slidingly connected with the inner surface of the sealing shield (4), and the sealing plate (531) and the sealing shield (4) constitute a sliding structure by the rectangular slide bar (533).
  5. 5. A local atmosphere control method of an ink jet printing apparatus according to claim 2, characterized in that the front and rear adjusting mechanism (56) comprises a fixed bracket (561), a T-shaped slide block (562) is symmetrically and fixedly installed at the top of the fixed bracket (561), a fixed plate (563) is symmetrically and fixedly connected to the inner surface of the fixed bracket (561), a driving motor (564) is installed at the outer side of the fixed plate (563), a driving screw (565) is installed at the output shaft of the driving motor (564) through a coupling, and the end part of the driving screw (565) is rotatably connected with the inside of the fixed plate (563).
  6. 6. The local atmosphere control method of an inkjet printing apparatus according to claim 5, wherein the top of the fixing bracket (561) is fixedly connected with the bottom of the T-shaped slider (562), and the top of the T-shaped slider (562) is slidably connected with the bottom inner surface of the connection plate (52), and the fixing bracket (561) and the connection plate (52) constitute a sliding structure through the T-shaped slider (562).
  7. 7. The local atmosphere control method of an ink jet printing apparatus according to claim 5, wherein the movable ink jet mechanism (57) comprises a hollow connection chamber (571), a cross-shaped slide block (572) is mounted at the top of the hollow connection chamber (571), a connection mechanism (573) is fixedly mounted at the top of the cross-shaped slide block (572), the inside of the connection mechanism (573) is movably connected with the outer surface of the driving screw rod (565) in a threaded fit manner, and simultaneously, the ink jet heads (574) are mounted at equal distances in an array form at the bottom of the hollow connection chamber (571).
  8. 8. The local atmosphere control method of an inkjet printing apparatus according to claim 7, wherein the number and positions of the inkjet heads (574) and the number and positions of the annular rubber films (7) are one-to-one, and the inner dimension of the annular rubber films (7) is slightly larger than the outer dimension of the inkjet heads (574).
  9. 9. A local atmosphere control method of an inkjet printing apparatus according to claim 1, characterized in that the local atmosphere control method comprises the following operation steps: S1, placing a product to be printed by ink jet on the top of a placement platform (2) by a worker, starting to run by an electric telescopic rod (51) when a sensor at the left bottom of a connecting bracket (6) senses the product, enabling a connecting plate (52) to drive a sealing mechanism (53) and a bearing bracket (54) to move downwards along the inner surface of a sealing protection cover (4) through guiding sliding of a rectangular sliding bar (533), automatically completing sealing work of an inlet and an outlet of the sealing protection cover (4) by a sealing plate (531) when a locking rod (532) is inserted into a positioning clamping groove (3), and enabling the bottom of a hollow connecting bin (571) to be in fit connection with the top of the connecting bracket (6) and automatically inserting an ink jet head (574) into the annular rubber film (7) so as to complete the placing work of the product; S2, atmosphere isolation, namely after the inside of the sealing protective cover (4) is sealed, filling nitrogen or inert gas into the inside of the sealing protective cover (4) through the matching of a gas replacement pipe (8), monitoring and processing the oxygen content and humidity in the space between the connecting support (6) and the object placing carrier (2) through the matching of a temperature-humidity water oxygen sensor (9), and stopping filling the nitrogen or inert gas when the oxygen content and the humidity in the area are reduced to set values, wherein the atmosphere protection is automatically formed in the area; And S3, ink is printed by spraying ink into the hollow connecting bin (571) through an ink supply pipeline after atmosphere protection is formed, then the ink is sprayed to the surface of a product through the matching of the ink jet head (574) for ink jet printing, and then the movable ink jet mechanism (57) is driven by the fixed support (561) to move left and right along the position right above the product through the driving of the electric push rod (55) in the bearing support (54) and the sliding of the T-shaped sliding block (562), and the driving screw rod (565) is driven to rotate in the fixed plate (563) when the driving motor (564) starts to operate, and at the moment, the hollow connecting bin (571) is enabled to move back and forth along the bottom of the fixed support (561) through the connection of the connecting mechanism (573) and the sliding of the cross-shaped sliding block (572), so that the ink jet head (574) can perform more comprehensive printing movement.
  10. 10. Use of a local atmosphere control device of an inkjet printing apparatus, characterized in that the local atmosphere control device according to any one of claims 1-8 is used for local atmosphere control during inkjet printing of a surface of a product to be printed.

Description

Local atmosphere control method of ink-jet printing equipment and application Technical Field The invention relates to the technical field of ink-jet printing equipment, in particular to a local atmosphere control method of the ink-jet printing equipment and application thereof. Background Current inkjet printing devices typically operate in an open environment with the surrounding nozzles being directly exposed to air. Such devices do not provide a separate local atmosphere control system at the location of the nozzle, and therefore the ink droplets ejected by the nozzle are directly affected by the oxygen and moisture content of the ambient air. For environmentally sensitive functional inks (e.g., perovskite precursor solutions, metal salt solutions, etc.), oxygen and moisture can cause chemical reactions or degradation, severely affecting the quality and stability of the printed film. The whole sealing mode has high energy consumption, the whole machine needs to maintain inert atmosphere for a long time, the gas consumption is large, the operation cost is high, and the atmosphere adjustment response speed is low. The flexibility of the movement of the spray head is affected, the uniform atmosphere is difficult to maintain in the large cavity, local atmosphere disturbance is easy to generate in the moving process of the spray head, and the printing stability is reduced. The existing scheme cannot flexibly adjust local atmosphere parameters of the spray head according to different process requirements, and limits the application of the ink-jet printing technology in manufacturing high-performance devices. Therefore, an atmosphere control technical scheme capable of realizing accurate and controllable local atmosphere at the position of the spray head without influencing normal ink spraying and front-back and left-right movement of the spray head is not available at present, and the innovation of the invention is that of the invention. Disclosure of Invention The present invention is directed to a local atmosphere control method and application of an inkjet printing apparatus, so as to solve the problems set forth in the background art. The local atmosphere control method is applied to a local atmosphere control device, the local atmosphere control device comprises a bearing base, an adjusting type ink-jet component and a temperature, humidity and oxygen sensor, the top of the bearing base is symmetrically and fixedly provided with a placement carrier, the top of the placement carrier on the right side is symmetrically provided with positioning clamping grooves, the outer surface of the placement carrier is fixedly provided with a sealing protective cover, the adjusting type ink-jet component is movably arranged in the sealing protective cover, the inner surface of the sealing protective cover is fixedly provided with a connecting bracket, annular rubber films are embedded in the connecting bracket at equal distance, the back of the sealing protective cover is embedded with a gas replacement pipe, and the temperature, humidity and oxygen sensor is fixedly arranged on the side of the sealing protective cover. Further, the regulation type ink jet component comprises an electric telescopic rod, the electric telescopic rod is symmetrically and fixedly arranged on the inner surface of the top of the sealing protective cover, a connecting plate is fixedly arranged at the extending end of the electric telescopic rod, a sealing mechanism is symmetrically arranged at the bottom of the connecting plate, a bearing support is symmetrically and fixedly arranged at the bottom of the connecting plate, an electric push rod is fixedly connected to the inside of the bearing support, an extending end of the electric push rod is fixedly connected with a front-back regulating mechanism, and a movable ink jet mechanism is movably arranged at the bottom of the front-back regulating mechanism. Further, the sealing mechanism comprises a sealing plate, locking rods are fixedly arranged at the bottom of the sealing plate at equal intervals, rectangular sliding strips are symmetrically arranged on two sides of the sealing plate, the outer dimension of each locking rod is matched with the inner dimension of each positioning clamping groove in an adaptive manner, and meanwhile, each locking rod forms a clamping structure with the object placing carrier through each positioning clamping groove. Further, the side of the sealing plate is fixedly connected with the inner side of the rectangular sliding strip, the outer surface of the rectangular sliding strip is in sliding connection with the inner surface of the sealing protection cover, and the sealing plate and the sealing protection cover form a sliding structure through the rectangular sliding strip. Further, the front-back adjusting mechanism comprises a fixed support, the top of the fixed support is symmetrically and fixedly provided with a T-shaped sliding block, the inner surface o