Combined continuous printing device

Abstract

The utility model discloses a combined type continuous printing device which comprises a guide belt installed on a machine frame, a rotary screen printing unit and a digital direct injection printing unit are installed above the guide belt in the running direction of fabric at intervals, and the digital direct injection printing unit is movably installed on the machine frame through a linear walking device. The linear walking device is in communication connection with the control system and drives the digital direct injection printing unit to move back and forth in the running direction of the fabric in a reciprocating mode. The linear walking device is used for driving the digital direct-injection printing unit to move back and forth in the running direction of the fabric, simultaneous operation of rotary screen printing and digital direct-injection printing during continuous feeding of the fabric is achieved, the structure is simple and easy to transform, the printing stability is high, and the precision and continuity of continuous printing of complex patterns are guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of dyeing and finishing equipment, in particular to a combined continuous printing device. Background Art

[0002] Existing digital printing machines use an intermittent feeding printing mode: the fabric is fed to the digital printing station via a guide belt, where the print head scans and prints. After printing is complete, the fabric moves forward a step and stops, and the print head then scans and prints again, repeating this intermittent printing cycle. To print complex patterns, the substrate to be printed needs to be subjected to both rotary screen printing and digital printing. However, rotary screen printing uses a continuous feeding and continuous printing mode. Ensuring printing accuracy while maintaining pattern consistency has become a challenge within the industry.

[0003] The specification of Chinese patent application No. 202211356611.0 discloses a printing machine and its control method. The machine comprises a controller, a frame, and a conveyor belt extending along the length of the frame. The frame is equipped with at least one rotary screen printing assembly and an intermittent printing assembly. The rotary screen printing assembly includes a printing roller and a first drive assembly that drives the printing roller in reciprocating motion along the length of the frame. The intermittent printing assembly is capable of intermittently printing a substrate. The printing machine utilizes a guide belt for intermittent operation, with the first drive assembly driving the rotary screen in reciprocating motion along the guide belt. This allows the intermittent printing assembly to operate in conjunction with the rotary screen printing on the same production line, ensuring a consistent pattern. However, in actual use, because the printing roller (including the rotary screen platform) moves with the guide belt, the rotary screen platform must continuously change speed. This speed change causes the rotary screen to vibrate, which in turn affects the printing quality.

[0004] In view of the defects of the existing technology, it is necessary to improve the continuous printing process of the rotary screen and digital printing machine to ensure the printing effect. Utility Model Content

[0005] The purpose of the utility model is to provide a combined continuous printing device.

[0006] The technical solution for achieving the purpose of the utility model is: a combined continuous printing device, which includes a guide belt installed on a frame, and a rotary screen printing unit and a digital direct inkjet printing unit are installed above the guide belt at intervals along the running direction of the fabric. The digital direct inkjet printing unit is movably installed on the frame through a linear traveling device, and the linear traveling device is communicated with the control system, and the digital direct inkjet printing unit is driven by the linear traveling device to move back and forth along the running direction of the fabric.

[0007] Furthermore, the linear walking device includes a linear guide rail, a slide and a linear motor module. The linear guide rail and the linear motor module are respectively installed on the frames on both sides of the guide belt. The slide is slidably connected to the linear guide rail, and the slide is fixedly connected to the linear motor module. A digital printing machine base is installed on the slide, and the digital direct injection printing unit is mounted between the two digital printing machine bases.

[0008] Furthermore, the rotary screen printing unit is located at the front end of the digital direct injection printing unit.

[0009] Furthermore, at least one rotary screen printing unit is installed at the front end and the rear end of the digital direct printing unit respectively.

[0010] The combined continuous printing device realized by the utility model utilizes a linear walking device to drive the digital direct-injection printing unit to move back and forth along the running direction of the fabric, thereby realizing simultaneous operation of the rotary screen and the digital direct-injection printing when the fabric is continuously fed. The structure is simple and easy to modify, and the printing stability is high, thereby ensuring the accuracy and continuity of the continuous printing of complex patterns. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the combined continuous printing device according to an embodiment of the present utility model, wherein the arrow represents the direction of fabric running;

[0012] Figure 2 This is a schematic top view of the structure of the combined continuous printing device described in an embodiment of the present utility model. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0014] like Figure 1 and Figure 2 As shown, a combined continuous printing device includes a guide belt 1 installed on a frame 10, and two first rotary screen printing units 2, a digital direct inkjet printing unit 3 and two second rotary screen printing units 4 are installed in sequence above the guide belt 1 along the running direction of the fabric. The digital direct inkjet printing unit 3 is movably mounted on the frame 10 through a linear travel device 5. The linear travel device 5 is communicatively connected to a control system (not shown), and the linear travel device 5 drives the digital direct inkjet printing unit 3 to move back and forth along the running direction of the fabric.

[0015] The linear walking device 5 includes a linear guide rail 51, a slide 52, and a linear motor module 53. The frames 10 on both sides of the guide belt 1 are respectively installed with a linear guide rail 51 and a linear motor module 53. The linear guide rail 51 is slidably connected to the slide 52, and the slide 52 is fixedly connected to the linear motor module 53. A digital printing machine base 31 is respectively installed on the two slides 52, and the digital direct injection printing unit 3 is mounted between the two digital printing machine bases 31.

[0016] In the printing process of the rotary screen and digital printing linkage, the guide belt 1 drives the fabric to run continuously, the first rotary screen printing unit 2 and the second rotary screen printing unit 4 continuously print, and the digital direct inkjet printing unit 3 is driven by the linear motor module 53 to move forward synchronously with the guide belt 1 and the fabric on the guide belt 1. At this time, the digital direct inkjet printing unit 3 and the guide belt 1 and the fabric on the guide belt 1 are relatively stationary. At the same time, the print head scans and prints on the fabric. When printing is completed, the digital direct inkjet printing unit 3 moves in the opposite direction to return to the initial position, and then moves forward synchronously to complete the scanning and printing, thus completing the rotary screen and digital overprint printing process.

[0017] The structure of the linear travel device described in the present invention is not limited to that shown in the embodiment, and can also be other conventional linear reciprocating motion structures in the mechanical field such as a gear rack linear reciprocating motion mechanism; the structures of the rotary screen printing unit and the digital direct injection printing unit described in the present invention are both existing technologies and will not be described in detail here.

[0018] In this embodiment, rotary screen printing modules can be set before and after the digital direct printing unit, so that customers can flexibly arrange the process sequence of rotary screen printing and digital printing according to the process characteristics in actual production. It innovates the combined printing process. The digital direct printing unit can move back and forth in a straight line along the running direction of the fabric under the drive of the linear walking device, realizing continuous printing of the digital direct printing unit, and the printing stability is high, ensuring the accuracy and continuity of continuous printing of complex patterns.

[0019] The position and number of the rotary screen printing units of the present invention are customized according to product requirements, and the rotary screen printing units can be arranged only at the front end or the rear end of the digital direct injection printing unit.

[0020] The utility model can utilize the rotary screen to carry out the online sizing process, saving the fabric sizing process cost, paste cost, and later sewage treatment cost, and can bring more vivid color effects and lower ink consumption.

[0021] When the digital direct printing unit prints color ink and the rotary screen prints gold and silver paste, pearlescent paste, and special background color, it can realize the production of various composite printing processes, especially the large-scale production of piece-fit fabrics using glue paste and discharge dyeing processes.

[0022] The improved combined continuous printing device supports the use of rotary screens for large-format background printing, leveraging its strengths to overcome its weaknesses, easily completing purely digital short-board patterns and achieving lower ink costs.

[0023] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A combined continuous printing device, comprising a guide belt mounted on a frame, characterized in that: A rotary screen printing unit and a digital direct-injection printing unit are installed at intervals above the guide belt along the running direction of the fabric. The digital direct-injection printing unit is movably installed on the frame through a linear travel device. The linear travel device is communicatively connected with the control system, and the digital direct-injection printing unit is driven by the linear travel device to move forward and backward along the running direction of the fabric.

2. The combined continuous printing device according to claim 1, characterized in that: The linear walking device includes a linear guide rail, a slide and a linear motor module. A linear guide rail and a linear motor module are respectively installed on the frames on both sides of the guide belt. The slide is slidably connected to the linear guide rail. The slide is fixedly connected to the linear motor module. A digital printing machine base is installed on the slide. The digital direct injection printing unit is mounted between the two digital printing machine bases.

3. The combined continuous printing device according to claim 1, characterized in that: The rotary screen printing unit is located at the front end of the digital direct injection printing unit.

4. The combined continuous printing device according to claim 1, characterized in that: At least one rotary screen printing unit is respectively installed at the front end and the rear end of the digital direct-injection printing unit.

Images