Rotary screen and digital printing combined printing machine

Abstract

The utility model relates to the technical field of textile fabric printing, in particular to a rotary screen and digital printing combined printing machine which comprises a main printing line body, and a guide belt for conveying printed materials is distributed on the main printing line body. A plurality of groups of rotary screen printing units and a group of digital printing trolley units are sequentially distributed on the main printing line body along the printing direction; the main printing line body is provided with a synchronous transmission mechanism connected with the multiple sets of rotary screen printing units and a gantry beam used for installing the digital printing trolley unit. The mechanism ensures that all the rotary screen printing units can keep consistent moving speed and position through accurate control. Meanwhile, in order to install and support the digital printing trolley unit, the main printing line body is further provided with a gantry beam. Thus, the rotary screen printing unit can efficiently conduct large-area pure color printing, the digital printing trolley unit can flexibly process complex colors and fine lines, and the rotary screen printing unit and the digital printing trolley unit supplement each other to jointly improve the printing efficiency and quality.

Description

Technical Field

[0001] The utility model relates to the technical field of textile printing, in particular to a printing machine combining rotary screen and digital printing. Background Art

[0002] Rotary screen printing is a traditional printing method that uses a rotary screen to apply the printing paste to the fabric, creating the desired pattern. Rotary screen printing offers advantages such as fast printing speed, vibrant colors, and minimal color variation, making it particularly suitable for large-scale, solid-color printing. However, rotary screen printing struggles with complex colors, fine textures, and high-precision patterns.

[0003] Digital printing is a printing technology that has emerged in recent years. It uses computer-controlled nozzles to spray colored ink directly onto fabric to create a pattern. Digital printing offers advantages such as high printing precision, clear patterns, and rich colors. It is particularly suitable for small-batch, high-variety, and personalized printing needs.

[0004] To improve printing efficiency and quality, existing technologies are beginning to explore the integration of rotary screen printing and digital printing. In these combined rotary screen and digital printing machines, multiple rotary screen units must continuously move relative to the substrate, and their movement must be synchronized to ensure the integrity of the overall pattern. While traditional multi-stage gear transmission control can achieve synchronous movement, the continuous reciprocating movement of the rotary screen increases the tooth gap, affecting synchronization accuracy and causing pattern distortion. Therefore, a more rational and precise synchronous movement control method is needed. Utility Model Content

[0005] The utility model aims at solving the technical problems existing in the prior art and provides a rotary screen and digital printing combined printing machine to solve the problem that the plurality of rotary screen units are difficult to keep moving synchronously, which easily leads to the destruction of the pattern.

[0006] The utility model provides a technical solution for solving the above-mentioned technical problems as follows: a printing machine combining rotary screen and digital printing, comprising a main printing line body, on which a guide belt for conveying a printing substrate is arranged; the main printing line body is provided with a plurality of groups of rotary screen printing units and a group of digital printing trolley units arranged in sequence along the printing direction; the main printing line body is provided with a synchronous transmission mechanism connected to the plurality of groups of rotary screen printing units, and a gantry beam for installing the digital printing trolley unit.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the synchronous transmission mechanism includes:

[0009] Two sets of horizontal guide rails distributed on both sides of the rotary screen printing unit;

[0010] A plurality of slides slidably engaged with the horizontal guide rails and connected to each rotary screen printing unit;

[0011] A synchronous belt connected to the rotary screen printing unit is provided along its moving direction;

[0012] A synchronous wheel connected to the synchronous belt drive;

[0013] Motor drive for driving the synchronous wheel.

[0014] Furthermore, the motor drive component includes a synchronous moving motor, and the output end of the synchronous moving motor is connected to the synchronous wheel through a transmission belt.

[0015] Furthermore, a transmission shaft is provided between the two sets of synchronous wheels.

[0016] Furthermore, the horizontal guide rails on the same side are provided with two groups, upper and lower.

[0017] Furthermore, the main printing line is also provided with a guide belt cleaning water tank located between the rotary screen printing unit and the digital printing carriage unit.

[0018] Furthermore, a dryer facing the printing substrate is arranged behind the digital printing trolley unit along the main printing line.

[0019] Furthermore, the rotary screen and digital printing combined printing machine provided by the present invention has at least the following beneficial effects compared to the prior art:

[0020] This mechanism ensures consistent movement speed and position across all rotary screen printing units through precise control. Furthermore, a gantry beam is installed on the main printing line to mount and support the digital printing carriage unit. This allows the rotary screen printing unit to efficiently produce large, solid-color prints, while the digital printing carriage unit can flexibly handle complex colors and fine textures. The two complement each other, improving printing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial structural diagram of the synchronous transmission mechanism of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Main printing line; 1.1. Guide belt; 2. Rotary screen printing unit; 3. Digital printing carriage unit; 4. Synchronous transmission mechanism; 4.1. Horizontal guide rail; 4.2. Slide; 4.3. Synchronous belt; 4.4. Synchronous pulley; 4.5. Synchronous moving motor; 4.6. Transmission belt; 4.7. Transmission shaft; 5. Gantry beam; 6. Guide belt cleaning sink; 7. Dryer. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] It should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integrated structures. Those skilled in the art will understand the specific meanings of such terms in this patent based on specific circumstances.

[0027] like Figure 1 and Figure 2 As shown, the rotary screen and digital printing combined printing machine of the present practical design includes a main printing line body 1, on which a guide belt 1.1 for conveying the printing substrate is arranged; the main printing line body 1 is sequentially provided with multiple groups of rotary screen printing units 2 and a group of digital printing trolley units 3 along the printing direction; the main printing line body 1 is provided with a synchronous transmission mechanism 4 connected to the multiple groups of rotary screen printing units 2, and a gantry beam 5 for installing the digital printing trolley unit 3.

[0028] The printing machine is mainly composed of a main printing line 1, on which a guide belt 1.1 for conveying the printing substrate is laid. On the guide belt, multiple groups of rotary screen printing units 2 and a group of digital printing trolley units 3 are arranged in sequence along the printing direction. In order to achieve the synchronous movement of multiple groups of rotary screen printing units, a synchronous transmission mechanism 4 is set on the main printing line. This mechanism ensures that all rotary screen printing units can maintain a consistent movement speed and position through precise control. At the same time, in order to install and support the digital printing trolley unit, a gantry beam 5 is also equipped on the main printing line. In this way, the rotary screen printing unit can efficiently perform large-area solid color printing, while the digital printing trolley unit can flexibly handle complex colors and fine textures. The two complement each other and jointly improve printing efficiency and quality.

[0029] As an embodiment, the synchronous transmission mechanism 4 includes:

[0030] Two sets of horizontal guide rails 4.1 distributed on both sides of the rotary screen printing unit 2;

[0031] A plurality of slides 4.2 that are slidably engaged with the horizontal guide rails 4.1 and connected to each rotary screen printing unit 2;

[0032] A synchronous belt 4.3 is also provided along the moving direction of the rotary screen printing unit 2 and connected thereto;

[0033] A synchronous pulley 4.4 connected to the synchronous belt 4.3;

[0034] Motor drive for driving the synchronous wheel 4.4.

[0035] Specifically, the motor drive unit includes a synchronous moving motor 4.5, and the output end of the synchronous moving motor 4.5 is connected to the synchronous wheel 4.4 through a transmission belt 4.6.

[0036] Specifically, a transmission shaft 4.7 is provided between the two sets of synchronous wheels 4.4.

[0037] Specifically, the horizontal guide rails 4.1 on the same side are provided with two groups, upper and lower.

[0038] The synchronous transmission mechanism 4 is primarily composed of two sets of horizontal guide rails 4.1 distributed on either side of the rotary screen printing unit 2, providing a stable movement path for the rotary screen printing unit. Several slides 4.2, which slidably engage with the horizontal guide rails 4.1, connect each rotary screen printing unit 2, allowing the rotary screen printing unit to move smoothly on the guide rails.

[0039] A synchronous belt 4.3 is provided along the movement direction of the rotary screen printing unit 2. This belt is driven by a synchronous pulley 4.4, ensuring the synchronous movement of the rotary screen printing units. To drive the synchronous pulley 4.4, a motor drive is installed, specifically a synchronous movement motor 4.5. The output end of the synchronous movement motor 4.5 is connected to the synchronous pulley 4.4 via another transmission belt 4.6, achieving power transmission.

[0040] In order to ensure the stability of the synchronous belt 4.3 during the transmission process, a transmission shaft 4.7 is provided between the two sets of synchronous wheels 4.4, which further enhances the reliability of the synchronous transmission.

[0041] In addition, in order to improve the load-bearing capacity and stability of the guide rail, two sets of upper and lower horizontal guide rails 4.1 on the same side are provided to form a double guide rail structure.

[0042] As an embodiment, the main printing line 1 is further provided with a belt cleaning tank 6 located between the rotary screen printing unit 2 and the digital printing carriage unit 3. This tank is intended to promptly clean any ink or other stains that may remain on the belt 1.1 that transports the printed substrate. After the rotary screen printing unit completes the printing operation, some unabsorbed ink may remain on the belt. If not promptly cleaned, this ink may affect the subsequent digital printing process and even reduce print quality.

[0043] As an embodiment, a dryer 7 facing the printing material is further arranged behind the digital printing trolley unit 3 along the upper side of the main printing line 1 .

[0044] The dryer 7 is strategically positioned behind the digital printing carriage unit 3, facing the substrate. This ensures that the printed substrate is dried immediately after printing. During the digital printing process, the ink jetting and absorption by the substrate may leave residual moisture or solvent on the substrate surface. Failure to promptly remove this residual moisture or solvent can lead to blurred patterns, faded colors, and even deformation or curling of the substrate, seriously impacting print quality.

[0045] It should be noted that, in this article, the terms "include", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. Unless otherwise expressly specified and limited, the terms "install", "connect", and "connect" 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0046] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0047] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A rotary screen and digital printing combined printing machine, characterized in that: The invention comprises a main printing line (1), on which a guide belt (1.1) for conveying a printing substrate is arranged; the main printing line (1) is provided with a plurality of groups of rotary screen printing units (2) and a group of digital printing trolley units (3) arranged in sequence along the printing direction; the main printing line (1) is provided with a synchronous transmission mechanism (4) connected to the plurality of groups of rotary screen printing units (2), and a gantry beam (5) for mounting the digital printing trolley units (3).

2. The rotary screen and digital printing combined printing machine according to claim 1, characterized in that: The synchronous transmission mechanism (4) comprises: Two sets of horizontal guide rails (4.1) distributed on both sides of the rotary screen printing unit (2); A plurality of slides (4.2) that are slidably engaged with the horizontal guide rails (4.1) and connected to the respective rotary screen printing units (2); A synchronous belt (4.3) connected to the rotary screen printing unit (2) is also provided along its moving direction; A synchronous wheel (4.4) connected to the synchronous belt (4.3); A motor drive for driving the synchronous wheel (4.4).

3. The rotary screen and digital printing combined printing machine according to claim 2, characterized in that: The motor drive component comprises a synchronous moving motor (4.5), and the output end of the synchronous moving motor (4.5) is connected to the synchronous wheel (4.4) via a transmission belt (4.6).

4. The rotary screen and digital printing combined printing machine according to claim 3, characterized in that: A transmission shaft (4.7) is provided between the two sets of synchronous wheels (4.4).

5. The rotary screen and digital printing combined printing machine according to claim 2, characterized in that: The horizontal guide rails (4.1) on the same side are provided with two groups, upper and lower.

6. The rotary screen and digital printing combined printing machine according to claim 1, characterized in that: The main printing line body (1) is also provided with a guide belt cleaning water tank (6) located between the rotary screen printing unit (2) and the digital printing trolley unit (3).

7. The rotary screen and digital printing combined printing machine according to claim 1, characterized in that: A dryer (7) facing the printing material is also arranged on the upper edge of the main printing line (1) behind the digital printing trolley unit (3).

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