A cylindrical UV printing device

Abstract

The utility model relates to UV printing technical field, concretely is a kind of for cylinder UV printing device, including printing transmission frame, and frame bottom is supported and fixed by support leg, and synchronous shaft assembly is installed on frame;Synchronous shaft assembly includes multiple parallel distribution transmission roller, and transmission roller is connected with driving shaft by synchronous belt, and driving shaft is driven by external motor, and synchronous shaft assembly is also equipped with adjusting shaft, and adjusting shaft can be moved along shaft adjusting groove to adjust the tightness of synchronous belt.The utility model passes through the friction force control workpiece stable overturn transmission between transmission roller and cylinder workpiece, ensures workpiece and printing nozzle distance constant, realizes circumferential surface even printing, avoids pattern fault and color incoherence problem, effectively improves production efficiency and printing quality.

Claims

1. A UV printing apparatus for cylindrical objects, characterized in that, The system includes a printing transmission frame (1), the bottom of which is supported and fixed by multiple legs (6). A synchronous shaft assembly (2) is mounted on the printing transmission frame (1) via bearings. The synchronous shaft assembly (2) is used to control the flipping and transmission of the cylindrical workpiece (5). One end of the printing transmission frame (1) is provided with a drive shaft (7). The drive shaft (7) is connected to the synchronous shaft assembly (2) via a synchronous belt (9). The synchronous shaft assembly (2) includes multiple parallel transmission rollers (4). The transmission rollers (4) are connected to the drive shaft (7) via the synchronous belt (9).

2. The UV printing apparatus for cylinders according to claim 1, characterized in that, The synchronous shaft assembly (2) also includes an adjustment shaft (8), which is disposed on both sides of the drive shaft (7). The adjustment shaft (8) is connected to the adjacent transfer roller (4) via a synchronous belt (9). The printing transfer frame (1) is provided with a shaft adjustment groove (10). The adjustment shaft (8) can move along the shaft adjustment groove (10) to adjust the tension of the synchronous belt (9).

3. The UV printing apparatus for cylinders according to claim 2, characterized in that, The adjusting shaft (8) is fitted with a bearing on the outer side of the shaft adjusting groove (10), and a fastening bolt is provided on one side of the bearing to restrict the position of the bearing in the shaft adjusting groove (10).

4. The UV printing apparatus for cylinders according to claim 1, characterized in that, The surface of the transfer roller (4) is coated with an anti-slip layer, which is made of rubber or polyurethane material.

5. The UV printing apparatus for cylinders according to claim 1, characterized in that, The transfer roller (4) is made of aluminum alloy or steel.

6. The UV printing apparatus for cylinders according to claim 1, characterized in that, The printing transmission frame (1) is made of steel or aluminum alloy welded together.

7. The UV printing apparatus for cylinders according to claim 1, characterized in that, It also includes a coupling (3) for connecting an additional synchronous shaft assembly (2) to extend the printing station.

8. The UV printing apparatus for cylinders according to claim 1, characterized in that, The power input end of the drive shaft (7) is connected to an external motor, which is a servo motor or a stepper motor.

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