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Device capable of improving regulation precision of photogravure press guide roller

A gravure printing machine and a technology for adjusting accuracy, which are applied in the field of guide roller devices, can solve the problems of lack of gear matching accuracy, affecting overprinting accuracy, overprinting deviation, etc., and achieve the effect of improving overprinting accuracy

Inactive Publication Date: 2015-10-14
曾宪雄
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the transmission rod and the ball screw are driven by gears, there will inevitably be wear and tear between the gears or lack of matching precision, which will cause the gear meshing to be empty, which directly affects the overprinting accuracy and overprinting deviation.

Method used

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  • Device capable of improving regulation precision of photogravure press guide roller

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Effect test

Embodiment Construction

[0007] like figure 1 As shown, a device that can improve the adjustment accuracy of the guide roller of a gravure printing machine includes a guide roller 1, an adjustment guide roller 2 arranged above the guide roller 1, and is installed at both ends of the adjustment guide roller 2 to adjust The ball screw 3 that adjusts the guide roller 2 up and down, the transmission rod 4 that drives the two ball screws 3 to rotate synchronously by connecting the two ball screws 3 through bevel gears, and the motor 5 that drives the transmission rod 4 to rotate. The bevel gear 6 on the transmission rod 4 is axially fixed on the transmission rod 4, and each is equipped with a spring 8 that can press and engage the bevel gear 6 and the bevel gear 7 on the ball screw 3.

[0008] Under the tight pressure of the spring 8, even if there are various problems such as wear or lack of matching accuracy between the bevel gears 6 and 7, the spring 8 will always press the bevel gear 6 on the transmiss...

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Abstract

The invention discloses a device capable of improving the regulation precision of a photogravure press guide roller. The device comprises a material-guiding guide roller, a regulating guide roller, ball screws, a drive rod and a motor as well as a motor, wherein the regulating guide roller is arranged above the material-guiding guide roller, the ball screws are arranged at two ends of the regulating guide roller so as to regulate vertical lifting of the regulating guide roller, the drive rod is connected with the two ball screws by bevel gears so as to drive the two ball screws to synchronously rotate, the motor is used for driving the drive rod to rotate, the bevel gears on the drive rod are axially fixed on the drive rod, each ball screw is provided with a spring; by the springs, bevel gears on the ball screws and the bevel gears on the ball screws can be pressed and meshed. According to the invention, the spring presses the bevel gears on the drive rod and the bevel gears on the ball screws so that the bevel gears on the drive rod and the bevel gears on the ball screws are tightly meshed all the time, the phenomenon of idle meshing of the gears is avoided and the chromatography precision of the photogravure press is effectively increased.

Description

technical field [0001] The invention relates to the technical field of gravure printing machines, in particular to a device for adjusting guide rollers of printing machines. Background technique [0002] The gravure printing machine for soft printing materials usually uses guide rollers to convey the printing materials. For multi-color overprinting, it is necessary to adjust the length of the printing materials between the printing plates of each color, and the adjustment of the length of the printing materials is by adjusting the guide rollers. The axial spacing between them is achieved. The existing guide roller adjustment device of the gravure printing machine comprises a material guide roller, an adjustment guide roller arranged above the material guide roller, a ball screw installed on both ends of the adjustment guide roller to adjust the adjustment guide roller up and down, The two ball screw rods are connected through bevel gears to drive the transmission rod for sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F13/12
Inventor 曾宪雄
Owner 曾宪雄
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