Automatic differential speed correction device for printing machinery

Abstract

The invention discloses an automatic differential correction device which comprises a machine frame; a pair of sensors for detecting whether a to-be-transmitted object is deviated is arranged on the machine frame; the sensors are arranged on two sides of the to-be-transmitted object; a fixing shaft is fixedly mounted on the machine frame; two sets of bearings are sleeved with the fixing shaft; each set of bearing is sleeved with a correction roller; each correction roller is connected with a power device which drives the correction roller to rotate; and the sensors and the two power devices are both connected with a central processing unit. The automatic differential correction device has the advantages that through the control of the differential operation of the correction rollers, a conveying belt or grey cloth is allowed to move in the direction of the central axis of a conveying roller, so as to achieve an automatic deviation correction effect, the structure is simplified, the manufacturing cost is greatly reduced, the noise is minimized, the service life is long, the application range is wide, and the automatic differential correction device can be used alone or in coordination with other devices on various printing machines and conveying appliances.

Description

technical field [0001] The invention relates to the technical field of material conveying equipment, in particular to an automatic differential speed correction device for printing machinery. Background technique [0002] Material conveying equipment is widely used in various industries, such as belt conveyors or cloth feeding mechanisms on printing machinery. Set a deviation correction device, such as figure 1 As shown, the structure of a correction device used in the prior art is as follows: a rotating roller 9 is installed on the fixed shaft 2, a power input tape reel 8 is installed on the rotating roller 9, and spokes 7 are installed on the rotating roller 9 , can slide left and right; the servo motor 3 passes the guide rail reversing power input 1 under the action of the shift fork 4 and the guide rail reversing fulcrum 5, so that the spokes 7 can change the reciprocating direction 11 of the spokes along the spoke running guide rail 6; when the sensor 10 detects the gr...

AI Technical Summary

Problems solved by technology

Due to the complex structure of this device, high manufacturing cost, difficult installation and maintenance, high noise, and short service life, especially when used on printing machines, if the high-speed cloth feeding damage rate is extremely high, it has become an insurmountable obstacle to reducing labor costs.

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