Digital printing machine ink stack with moisturizing and automatic cleaning functions

Abstract

The digital printing machine ink stack with the moisturizing and automatic cleaning functions comprises an ink stack body, an ink collecting box and an ink sucking device which are connected through pipelines so that ink droplets on the lower side face of a printing trolley can be sucked into the ink collecting box through the ink stack body, and the ink collecting box is used for collecting the ink droplets on the lower side face of the printing trolley. The ink stack body comprises an ink stack base, a plurality of ink absorbing pads and a plurality of ink placing pads, the plurality of ink absorbing pads are arranged in a row at the position, close to the side edge, of the ink stack base, and the plurality of ink placing pads are arranged on the ink stack base, so that moisturizing and ink absorbing are provided for a printing trolley through the ink absorbing pads; and the cleaning pad is used for cleaning residual ink beads after ink absorption on the printing trolley. Through the arrangement of the ink pumping pad, during shutdown, the ink suction device is adopted to provide suction force to drive the ink pumping pad to pump residual ink in the nozzle array, after pumping is completed, the ink is transferred to the cleaning pad, ink droplets on the lower surface of the nozzle array are further cleaned through suction of the cleaning pad, and finally the ink is placed on the ink pumping pad. Therefore, moisturizing of the nozzle array is realized.

Description

Technical Field

[0001] This utility model relates to a digital printing machine, and more specifically to an ink stack for a digital printing machine with moisturizing and automatic cleaning functions. Background Technology

[0002] Current digital printing presses utilize an inkjet array beneath the printing carriage to spray ink onto the paper to be printed. To ensure printing precision, the inkjet nozzles on the printheads within the printing carriage are quite small. If the ink remains in the printheads for too long during shutdown, it can dry and clog the nozzles, affecting subsequent printing operations. Current technology addresses this by manually wiping the ink during shutdown. However, this method is prone to ink cross-contamination beneath the printhead and fails to properly clean the ink inside the printhead, still resulting in prolonged ink retention. Therefore, it is crucial to implement proper hydration, ink extraction, and automatic cleaning of the printheads during shutdown. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide an ink stack with moisturizing and automatic cleaning functions, used for moisturizing, extracting ink, and automatically cleaning the printheads of the printhead array below the printing carriage.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an ink stack for a digital printing machine with moisturizing and automatic cleaning functions, comprising an ink stack body, an ink collection box, and an ink suction device. The ink stack body, ink collection box, and ink suction device are connected by a pipe to draw ink droplets from the underside of the printing carriage into the ink collection box. The ink stack body includes an ink stack base, several ink-absorbing pads, and several ink-releasing pads. The ink-absorbing pads are arranged in a row near the side of the ink stack base, and the ink-releasing pads are arranged on the ink stack base. The ink-absorbing pads provide moisturizing and ink absorption for the printing carriage, and the cleaning pads clean the ink droplets remaining on the printing carriage after ink absorption.

[0005] As a further improvement of this utility model, the upper side of the ink-absorbing pad is provided with an ink-absorbing groove, the bottom of the ink-absorbing groove is provided with an oblong hole that communicates with the ink collection box, the ink-absorbing groove is elongated, and the cross-section of the ink-absorbing groove is set in an inverted trapezoidal shape.

[0006] As a further improvement of this utility model, the upper side of the ink pad is provided with a blocking edge, and the blocking edges are connected end to end to form a groove structure on the upper side of the ink pad.

[0007] The beneficial effects of this utility model are as follows: By setting up the ink extraction pad, when the machine is stopped, the ink extraction device 62 provides suction to drive the ink extraction pad to extract the ink remaining in the printhead array. After extraction is completed, it is transferred to the cleaning pad, and the ink droplets on the lower surface of the printhead array are further cleaned by the suction of the cleaning pad. Finally, it is placed on the ink extraction pad, thereby achieving the goal of keeping the printhead array moist. Attached Figure Description

[0008] Figure 1 This is an overall structural diagram of the ink stack with moisturizing and automatic cleaning functions in the digital printing machine of this utility model;

[0009] Figure 2 for Figure 1 Overall structural diagram of the central ink absorption pad. Detailed Implementation

[0010] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0011] Reference Figure 1 As shown, this embodiment of a digital printing press includes an ink stack with moisturizing and automatic cleaning functions, comprising an ink stack body 6, an ink collection box 61, and an ink suction device 62. The ink stack body 6, the ink collection box 61, and the ink suction device 62 are connected by a pipe to draw ink droplets from the underside of the printing carriage into the ink collection box 61. The ink stack body 6 includes an ink stack base 63, several ink-absorbing pads 64, and several ink-releasing pads 65. The several ink-absorbing pads 64 are arranged in a row near the side of the ink stack base 63, and the several ink-releasing pads 65 are arranged on the ink stack base 63. The ink-absorbing pads 65 provide moisturizing and ink absorption for the printing carriage 3, and the cleaning pads 64 clean the ink droplets remaining on the printing carriage 3 after ink absorption. Thus, the ink suction device 62 generates suction, which draws ink droplets from the printing carriage through the pipe and transports them to the ink collection box 61. The ink inside the printing carriage is cleaned in a timely manner, and the ink-absorbing pads 64 are used to absorb the ink inside the printhead array one by one. After the ink is absorbed, ink droplets may remain on the lower surface of the printhead array. The cleaning pads 64 are then used to clean the printhead array row by row to effectively remove the residual ink droplets. Compared with the manual wiping method in the existing technology, this method can achieve automated moisturizing, ink extraction and automatic cleaning.

[0012] Furthermore, this embodiment provides a specific structure for the ink-absorbing pad 64. The upper side of the ink-absorbing pad 64 has an ink-absorbing groove 641. The bottom of the ink-absorbing groove 641 has an oblong hole that communicates with the ink collection box 61. The ink-absorbing groove 641 is elongated, and its cross-section is an inverted trapezoid. The design of the ink-absorbing groove 641 helps to collect ink droplets more effectively. The oblong hole ensures that ink droplets flow smoothly into the ink collection box 61, and the inverted trapezoidal cross-section increases the ink-absorbing area, ensuring that all ink droplets on the lower surface of the printhead array are cleanly absorbed.

[0013] Furthermore, this embodiment provides a specific structure for the ink-dispensing pad 65. Each side of the upper surface of the ink-dispensing pad 65 is provided with a blocking edge 651. The blocking edges 651 are connected end-to-end to form a groove structure on the upper surface of the ink-dispensing pad 65. The groove structure formed by the blocking edges 651 helps to keep the ink moist, creating a closed space to prevent the ink from drying out. This ensures that the ink on the inkjet nozzle remains moist when the printing carriage is in place. Simultaneously, the blocking edges 651 further enhance the sealing during ink extraction, improving the ink extraction effect.

[0014] Furthermore, the number of ink extraction pads corresponds one-to-one with the number of each printhead on the printhead array. The upper side of the ink extraction pad 65 is provided with several ink extraction rows, and several ink extraction holes are arranged in the ink extraction rows. The number of ink extraction rows and the number of ink extraction holes correspond one-to-one with the number of nozzles below each printhead. By adopting the above method that is completely corresponding to the printhead array, one-to-one ink extraction can be achieved, the ink extraction effect is better, and it is not easy for color mixing to occur.

[0015] In summary, the ink stack in this embodiment, through the coordinated work of the cleaning pad 64 and the ink extraction pad 65, effectively absorbs and moisturizes ink droplets on the printing carriage and automatically cleans them, thereby improving the operating efficiency and printing quality of the printing press.

[0016] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An ink stack for a digital printing press with moisturizing and automatic cleaning functions, characterized in that: The device includes an ink stack body (6), an ink collection box (61), and an ink suction device (62). The ink stack body (6), the ink collection box (61), and the ink suction device (62) are connected by a pipe to draw ink droplets from the lower side of the printing carriage into the ink collection box (61) through the ink stack body (6). The ink stack body (6) includes an ink stack base (63), several cleaning pads (64), and several ink extraction pads (65). Several cleaning pads (64) are arranged in a row near the side of the ink stack base (63), and several ink extraction pads (65) are arranged on the ink stack base (63) to provide moisture and ink absorption for the printing carriage (3) through the ink extraction pads (65). The cleaning pads (64) clean the ink droplets remaining on the printing carriage (3) after ink absorption.

2. The ink stack with moisturizing and automatic cleaning functions in a digital printing press according to claim 1, characterized in that: The cleaning pad (64) has an ink absorption groove (641) on its upper side. The bottom of the ink absorption groove (641) has a waist-shaped hole that communicates with the ink collection box (61). The ink absorption groove (641) is long and narrow, and its cross-section is an inverted trapezoid.

3. The ink stack with moisturizing and automatic cleaning functions in a digital printing press according to claim 1 or 2, characterized in that: The upper side of the ink extraction pad (65) is provided with a blocking edge (651), and the blocking edge (651) is connected end to end to form a groove structure on the upper side of the ink extraction pad (65).

4. The ink stack with moisturizing and automatic cleaning functions in a digital printing press according to claim 3, characterized in that: The number of ink extraction pads corresponds one-to-one with the number of each printhead on the printhead array. The upper side of the ink extraction pad (65) is provided with several ink extraction rows, and several ink extraction holes are arranged in the ink extraction rows. The number of ink extraction rows and the number of ink extraction holes correspond one-to-one with the number of nozzles below each printhead.

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