An inkjet printing device for wood panels

Abstract

This invention discloses an inkjet printing device for wood panels, including a printing platform on which a wood panel is placed, and a printing assembly above the wood panel. The printing assembly includes a printing module, with a pre-press processor on one side and a post-press processor on the other. A pre-press heater is located at the bottom of the pre-press processor, and a post-press heater is located at the bottom of the post-press processor. A control system is external to the printing platform, and the printing module is connected to an ink bottle, an inkjet head, a drive assembly, and a transport mechanism. During operation, the process sequentially involves pre-press preheating, inkjet printing, and post-press heating and curing. Water-based or UV inks can be used, and the heating power and transport parameters are adjustable. This invention utilizes bottom-directed heating to ensure uniform ink penetration and rapid curing, effectively preventing wood panel warping and deformation, ink bleeding, and sagging, improving printing accuracy and yield. It features a compact structure, strong adaptability, and is suitable for automated inkjet production of wood panels.

Description

Technical Field

[0001] This invention relates to the field of printing equipment technology, and more specifically, to a wood panel inkjet printing apparatus. Background Technology

[0002] In traditional wood panel coloring techniques, it is common practice to rely on manual colorists to mix raw materials into paint of the desired color.

[0003] However, this method has many limitations. Over-reliance on manual labor can lead to color deviations. Fluctuations in the colorist's physical and mental condition, variations in batches at different times, changes in raw materials, and climate changes can all affect the consistency of the paint, thus impacting the quality of the final product. To overcome these limitations, people have tried using UV printing to achieve the same results as traditional printing. However, UV inks do not easily penetrate the wood panel and mostly remain on the surface, resulting in rough print quality and poor detail. Summary of the Invention

[0004] The purpose of this invention is to provide a wood panel inkjet printing device to solve the problem mentioned in the background art that UV ink does not easily penetrate the wood panel and mostly stays on the surface, resulting in rough printing quality and poor fineness.

[0005] To achieve the above objectives, the present invention provides a wood panel inkjet printing device, including a printing platform on which a wood panel is disposed. A printing system is mounted on top of the wood panel. The printing system includes a printing component, which is driven to move horizontally by a driving component. The printing component includes a printing module. A pre-press processor is mounted on one side of the printing module, and a post-press processor is mounted on the other side of the printing module. A pre-press heater is mounted at the bottom of the pre-press processor, and a post-press heater is mounted at the bottom of the post-press processor.

[0006] As a preferred embodiment of the present invention, a control system is also installed on the outside of the printing platform.

[0007] As a preferred embodiment of the present invention, one side of the printing module is connected to an ink bottle via an ink tube, and the ink bottle is provided with an ink storage area.

[0008] As a preferred embodiment of the present invention, the bottom of the printing module sprays ink onto the wooden board through an inkjet head.

[0009] As a preferred embodiment of the present invention, the input terminals of the prepress processor and the postpress processor are both connected to the control system via circuits, the output terminal of the prepress processor is connected to the prepress heater via a line, and the output terminal of the postpress processor is connected to the postpress heater via a line.

[0010] As a preferred embodiment of the present invention, the driving assembly includes a housing, a lead screw is installed inside the housing, a lead screw slider is installed on the lead screw, one end of the lead screw is driven to rotate by a lead screw motor, one side of the lead screw slider is connected to the printing assembly through a connecting shaft, the outer wall of the housing is provided with a strip hole, one side of the lead screw slider is slidably engaged with the strip hole, and a bracket is installed at the bottom of the housing.

[0011] As a preferred embodiment of the present invention, the printing platform includes a conveyor belt, with conveyor wheels installed at both ends of the conveyor belt. The conveyor wheels are driven to rotate by a transmission motor. Auxiliary wheels are installed at equal intervals between the conveyor wheels at both ends. The ends of the conveyor wheels and the auxiliary wheels are all mounted on the bracket by bearings.

[0012] As a preferred embodiment of the present invention, the printing step includes:

[0013] S1. Pre-treat the surface of the wood or cardboard by heating to reduce its surface humidity, making it more receptive to ink and forming a suitable area for printing;

[0014] S2. Print the image on the treated wood or cardboard surface;

[0015] S3. Post-process the printed wood or cardboard surface by heating to control the depth of ink penetration and stabilize the color quality of the print.

[0016] As a preferred embodiment of the present invention, the ink is water-based ink or weakly soluble ink. The heating power in the pretreatment step can be adjusted according to the climate and ambient temperature and humidity. Similarly, the heating power in the posttreatment step can also be adjusted according to the climate and ambient temperature and humidity.

[0017] As a preferred embodiment of the present invention, the printing device moves at a speed of 1.2-1.7 m / s, and the heater is positioned 20 cm away from the nozzle to obtain an average heating time of 0.12-0.17 seconds.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The wood panel inkjet printing device proposed in this invention effectively solves many limitations of traditional wood panel coloring processes, especially overcoming the problem of color deviation caused by reliance on manual color mixing. By using water-based or weakly soluble inks and utilizing their good penetration into wood panels, the ink penetration depth of coloring (printing) is significantly improved, enabling the wood panel to support a secondary grinding process, thereby greatly improving the surface smoothness and color quality of the final product.

[0020] Furthermore, this invention, through the design of pre-press and post-press processors, achieves pre- and post-processing of the wood or cardboard surface. Heating reduces surface humidity, making it more receptive to ink and controlling the depth of ink penetration, resulting in more stable print color quality. Simultaneously, the heating power in the pre- and post-processing steps can be adjusted according to climate and ambient temperature and humidity, further enhancing the adaptability and flexibility of the printing device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the printing component in this invention;

[0023] Figure 3 This is a schematic diagram of the printing platform in this invention;

[0024] Figure 4 This is a schematic diagram of the driving component in this invention;

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Wooden board; 11. Prepress heater; 12. Postpress heater; 13. Drive assembly; 131. Housing; 132. Lead screw; 133. Lead screw motor; 134. Lead screw slider; 135. Support; 14. Printing system; 1400. Printing assembly; 1401. Printing module; 1402. Prepress processor; 1403. Postpress processor; 1430. Ink bottle; 1431. Ink reservoir; 1432. Ink tube; 15. Printing platform; 151. Conveyor belt; 152. Conveyor wheel; 20. Control system. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides a wood panel inkjet printing device, such as... Figures 1-4As shown, the system includes a printing platform 15, on which a wooden board 1 is placed. A printing system 14 is mounted above the wooden board 1. The printing system 14 includes a printing component 1400, which is driven horizontally by a drive component 13. The printing component 1400 includes a printing module 1401. A pre-press processor 1402 is mounted on one side of the printing module 1401, and a post-press processor 1403 is mounted on the other side. A pre-press heater 11 is mounted at the bottom of the pre-press processor 1402, and a post-press heater 12 is mounted at the bottom of the post-press processor 1403. Through a carefully designed structure and component layout, efficient and high-quality inkjet printing on the wooden board is achieved. The printing platform 15 stably supports the wooden board 1, ensuring stability during the printing process. The printing system 14 and its printing component 1400, driven by the drive component 13, can precisely move horizontally, thereby achieving uniform and continuous printing on the wooden board 1. The printing module 1401, as the core part of the printing system, is responsible for precisely spraying ink onto the wooden board 1 to form a clear printed pattern. The addition of the pre-press processor 1402 and post-press processor 1403 further enhances print quality. The pre-press processor 1402 preheats the wooden board 1 using the pre-press heater 11, reducing its surface moisture and making it more receptive to ink, thus creating a more suitable printing area. The post-press processor 1403 performs post-processing on the printed wooden board 1 using the post-press heater 12, controlling the depth of ink penetration through heating to ensure more stable and durable color quality.

[0029] In this embodiment, a control system 20 is also installed externally on the printing platform 15. The control system 20 includes a main control unit, which is the core of the control system and is responsible for receiving printing instructions from external sources (such as a computer) and parsing and processing them. The main control unit is also responsible for generating control signals to drive other components to perform corresponding operations.

[0030] The control system 20 also includes an input interface for receiving print data and control signals sent from external devices (such as computers, scanners, etc.). These signals are processed by the input interface and then transmitted to the main control unit for further processing.

[0031] The control system 20 also includes an output interface to transmit the control signals generated by the main control unit to various components of the printing system 14 (such as the drive component 13, the pre-press processor 1402, the post-press processor 1403, etc.) to achieve precise control of the printing process.

[0032] The control system 20 also includes a sensor interface, which is connected to various sensors (such as paper sensors, ink sensors, etc.) installed on the printing platform 15 to monitor various parameters (such as paper position, ink level, etc.) in real time during the printing process and feed this information back to the main control unit so as to adjust the printing strategy in a timely manner.

[0033] The control system 20 also includes a power management module, which is responsible for providing a stable power supply to the various components of the control system 20 and the printing system 14 to ensure that the equipment can operate normally.

[0034] The control system 20 also includes a user interface, such as a touch screen or button panel, which allows users to input printing parameters and view printing status, enhancing the ease of use and operability of the device.

[0035] Specifically, one side of the printing module 1401 is connected to an ink bottle 1430 via an ink tube 1432. The ink bottle 1430 has an ink storage area 1431 for continuous ink supply.

[0036] Furthermore, the bottom of the printing module 1401 sprays ink onto the wooden board 1 via an inkjet head.

[0037] Furthermore, the input terminals of both the prepress processor 1402 and the postpress processor 1403 are connected to the control system 20 via circuitry. The output terminal of the prepress processor 1402 is connected to the prepress heater 11 via a line, and the output terminal of the postpress processor 1403 is connected to the postpress heater 12 via a line. The input terminals of both the prepress processor 1402 and the postpress processor 1403 are cleverly connected to the control system 20 via circuitry. This design achieves intelligent control of the prepress and postpress processes. After receiving instructions from the control system 20, the prepress processor 1402 can precisely control the switching and heating power of the prepress heater 11, thereby preheating the wood board and reducing its surface humidity, creating more ideal conditions for the subsequent printing process. Under the command of the control system 20, the postpress processor 1403 is also connected to the postpress heater 12 via a line to perform post-processing on the printed wood board. This step further controls the depth of ink penetration through heating, ensuring more stable and durable color quality in the print.

[0038] In conclusion, this technology not only improves the efficiency and quality of inkjet printing on wood panels, but also enables precise management of the printing process through intelligent control, bringing significant progress and innovation to the wood panel printing industry.

[0039] Furthermore, the drive assembly 13 includes a housing 131, inside which a lead screw 132 is installed, and a lead screw slider 134 is installed on the lead screw 132. One end of the lead screw 132 is driven to rotate by a lead screw motor 133. One side of the lead screw slider 134 is connected to the printing assembly 1400 through a connecting shaft. The outer wall of the housing 131 is provided with a strip hole, and the connecting shaft on one side of the lead screw slider 134 slides in cooperation with the strip hole. A bracket 135 is installed at the bottom of the housing 131 to facilitate the movement of the printing assembly 1400 and realize omnidirectional printing on the wooden board 1.

[0040] Furthermore, the printing platform 15 includes a conveyor belt 151, with conveyor wheels 152 installed at both ends of the conveyor belt 151. The conveyor wheels 152 are driven to rotate by a transmission motor. Auxiliary wheels are installed at equal intervals between the two conveyor wheels 152. The ends of the conveyor wheels 152 and the auxiliary wheels are all mounted on the bracket 135 through bearings to realize the horizontal movement of the wooden board 1. The movement direction of the wooden board 1 and the movement direction of the printing component 1400 are set perpendicularly.

[0041] Further, the printing steps include:

[0042] S1. Pre-treat the surface of the wood or cardboard by heating to reduce its surface humidity, making it more receptive to ink and forming a suitable area for printing;

[0043] S2. Print the image on the treated wood or cardboard surface;

[0044] S3. Post-process the printed wood or cardboard surface by heating to control the depth of ink penetration and stabilize the color quality of the print.

[0045] Furthermore, water-based ink or weakly soluble ink is used. The heating power in the pretreatment step can be adjusted according to the climate and ambient temperature and humidity. Similarly, the heating power in the posttreatment step can also be adjusted according to the climate and ambient temperature and humidity.

[0046] Furthermore, the printing device moves at a speed of 1.2-1.7 m / s, and the heater is positioned 20 cm away from the nozzle to obtain an average heating time of 0.12-0.17 seconds.

[0047] First, by pre-treating the surface of the wood or cardboard using heating technology to effectively reduce its surface moisture, the material becomes more receptive to ink, thus creating an ideal printing area. This step lays a solid foundation for the subsequent printing process.

[0048] In printing step S2, the processed wooden board or cardboard surface is precisely printed with the desired image, achieving an extremely high level of clarity in both text and detail in the image. This is thanks to the high-precision control of the printing system and the excellent performance of the ink.

[0049] Subsequently, in step S3, the printed wood or cardboard surface undergoes post-processing. By reheating, the depth of ink penetration is precisely controlled, resulting in more stable color quality and effectively avoiding color deviations caused by uneven ink penetration.

[0050] It is worth mentioning that the ink used in this embodiment is water-based or weakly soluble ink, which has good penetration into the wood panel and can further improve print quality. Meanwhile, the heating power in the pre-treatment and post-treatment steps can be adjusted according to the climate and ambient temperature and humidity. This design enhances the adaptability and flexibility of the printing device, enabling stable printing results in different environments.

[0051] Finally, the printing device moves at a speed of 1.2-1.7 m / s, and the heater is positioned 20 cm away from the nozzle. This precise setting allows the heater to provide an average heating time of 0.12-0.17 seconds, ensuring rapid ink drying while avoiding ink diffusion or color distortion caused by overheating.

[0052] In summary, the wood panel inkjet printing device and printing steps in this embodiment demonstrate outstanding technical performance, achieving industry-leading levels in printing speed, printing quality, and environmental adaptability.

[0053] Finally, it should be noted that the electronic components in the control system 20, prepress processor 1402, postpress processor 1403, etc. in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order between the electrical components in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wood panel inkjet printing device, comprising a printing platform (15), characterized in that: A wooden board (1) is set on the printing platform (15), and a printing system (14) is installed on the top of the wooden board (1). The printing system (14) includes a printing component (1400). The printing component (1400) is driven to move horizontally by a driving component (13). The printing component (1400) includes a printing module (1401). A pre-press processor (1402) is installed on one side of the printing module (1401), and a post-press processor (1403) is installed on the other side of the printing module (1401). A pre-press heater (11) is installed at the bottom of the pre-press processor (1402), and a post-press heater (12) is installed at the bottom of the post-press processor (1403). After receiving instructions from the control system (20), the prepress processor (1402) can precisely control the on / off state and heating power of the prepress heater (11) to preheat the wood board, reduce its surface humidity, and create more ideal conditions for the subsequent printing process. Under the command of the control system (20), the postpress processor (1403) is connected to the postpress heater (12) through a line to perform post-processing on the printed wood board. The printing system (14) and its printing components (1400) are able to perform precise horizontal movements under the drive of the drive component (13); The printing platform (15) includes a conveyor belt (151), with conveyor wheels (152) installed at both ends of the conveyor belt (151). The conveyor wheels (152) are driven to rotate by a transmission motor. Auxiliary wheels are installed at equal intervals between the two conveyor wheels (152). The ends of the conveyor wheels (152) and the auxiliary wheels are mounted on the bracket (135) through bearings to realize the horizontal movement of the wooden board (1).

2. The wood panel inkjet printing device according to claim 1, characterized in that: The printing platform (15) is also equipped with a control system (20).

3. The wood panel inkjet printing device according to claim 1, characterized in that: One side of the printing module (1401) is connected to an ink bottle (1430) via an ink tube (1432), and the ink bottle (1430) is provided with an ink storage area (1431).

4. The wood panel inkjet printing device according to claim 1, characterized in that: The bottom of the printing module (1401) sprays ink onto the wooden board (1) through an inkjet head.

5. The wood panel inkjet printing device according to claim 1, characterized in that: The input terminals of the prepress processor (1402) and the postpress processor (1403) are both connected to the control system (20) via circuits. The output terminal of the prepress processor (1402) is connected to the prepress heater (11) via a line, and the output terminal of the postpress processor (1403) is connected to the postpress heater (12) via a line.

6. The wood panel inkjet printing device according to claim 1, characterized in that: The drive assembly (13) includes a housing (131), inside which a lead screw (132) is installed. A lead screw slider (134) is installed on the lead screw (132). One end of the lead screw (132) is driven to rotate by a lead screw motor (133). One side of the lead screw slider (134) is connected to the printing assembly (1400) via a connecting shaft. The outer wall of the housing (131) is provided with a strip hole. The connecting shaft on one side of the lead screw slider (134) slides in cooperation with the strip hole. A bracket (135) is installed at the bottom of the housing (131).

7. The wood panel inkjet printing device according to claim 1, characterized in that: The printing steps include: S1. Pre-treat the surface of the wood or cardboard by heating to reduce its surface humidity, making it more receptive to ink and forming a suitable area for printing; S2. Print the image on the treated wood or cardboard surface; S3. Post-process the printed wood or cardboard surface by heating to control the depth of ink penetration and stabilize the color quality of the print.

8. The wood panel inkjet printing apparatus according to claim 7, characterized in that: The ink used is water-based or weakly soluble ink. The heating power in the pretreatment step is adjusted according to the climate and ambient temperature and humidity, and the heating power in the posttreatment step is also adjusted according to the climate and ambient temperature and humidity.

9. The wood panel inkjet printing apparatus according to claim 8, characterized in that: The printing device moves at a speed of 1.2-1.7 m / s, and the heater is positioned 20 cm away from the nozzle to obtain an average heating time of 0.12-0.17 seconds.

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