Friction winding machine for super-wide sheets

Abstract

The invention discloses a friction winding machine for super-wide sheets. The friction winding machine for the super-wide sheets comprises a conveying device and a winding device; the conveying devicecomprises a bottom frame, a motor and a belt conveying mechanism, a drive roll of the belt conveying mechanism is connected with the motor, a driven roll of the belt conveying mechanism cooperates with a spindle, and a conveyer belt is arranged between the drive roll and the driven roll; and the winding device comprises a rack, fixed conveying arms, movable winding arms and compressing mechanisms, the distance between stand frames on the two sides of the rack is larger than 5 meters, a first shaft is supported between the stand frames, a second shaft is arranged between the fixed conveying arms, at least two groups of friction conveying mechanisms are arranged between the first shaft and the second shaft, the friction conveying mechanisms cooperate with transmission rolls of the first shaft and the second shaft, at least two groups of the movable winding arms are arranged, two transmission rolls of the movable winding arms cooperate with the first shaft and a third shaft through friction belts, discharging air cylinders are arranged under the movable winding arms, a core cylinder is arranged between the fixed conveying arms and the movable winding arms, each compressing mechanismcomprises two compressing rolls and a compressing air cylinder, the compressing air cylinders are connected with lifting bases, and the compressing rolls are connected with the lifting bases.

Description

technical field [0001] The invention relates to a winder, in particular to a friction winder for ultra-wide sheets. Background technique [0002] In the production and processing of sheet materials, there are usually the following two winding methods to wind sheets. One is to use the inflatable shaft to rewind the sheet. The common inflatable shafts are 3-inch inflatable shaft and 6-inch inflatable shaft. The winding radius of the sheet corresponding to the 3-inch inflatable shaft is 80mm, 6-inch The winding radius of the sheet corresponding to the inflatable shaft is 150mm, and the winding radius of the 3-inch inflatable shaft and the 6-inch inflatable shaft are very small, and the curl of the sheet after winding is very large. For the hard sheet with a thickness of more than 3mm, due to the large thickness and high hardness of the hard sheet, it cannot be wound to a small diameter by the inflatable shaft, and the properties of the hard sheet itself are relatively low. Br...

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Problems solved by technology

For the hard sheet with a thickness of more than 3mm, due to the large thickness and high hardness of the hard sheet, it cannot be wound to a small diameter by the inflatable shaft, and the properties of the hard sheet itself are relatively low. Brittle, easily broken during winding

The other is to use the mechanical expansion shaft to wind the sheet, but the mechanical expansion shaft is more difficult at the beginning of winding, because at the beginning of winding, the starting end of the sheet is stuck in the mechanical card slot, and the starting end must be Under great shear force, so the edge of the sheet is easy to crack, and the sheet is easy to be scratched, affecting the quality of the sheet

The above two winding methods are only suitable for winding sheets with narrow width, small thickness and low hardness. For ultra-wide projection screen ultra-wide PC sheet winding cannot be realized, with each The demand for the width and thickness of PC sheets is getting higher and higher in the field, so there is an urgent need for a winder that can be used to wind ultra-long sheets

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