CN2254795Y - Elongation mechanism of rotary disc machine for shearing strip material - Google Patents

Abstract

The utility model relates to an elongation mechanism of a rotary disc shearing machine, comprising a pair of upper cutter shaft and lower cutter shaft, wherein, an upper cutter and a lower cutter are respectively arranged on the upper cutter shaft and the lower cutter shaft, the lower part of one side of the lower cutter shaft is a transition roller, the lower part of the lower cutter shaft is a press roller, the press roller is pressed on a winding shaft under the press shaft, and the lower part of the other side of the lower cutter shaft and the upper part of the press roller are provided with elongation controlling shafts, the linear speeds of which are the same as that of the lower cutter shaft. The elongation mechanism of rotary disc machine has the advantages that the utility model can more effectively eliminate the nonuniform elongation of strip material after the strip material is cut so as to improve the quality of strip material, and the utility model is suitable for the cutting elongation of metal strip material.

Description

Band cutting disc cutter extension mechanism

The utility model relates to a kind of band cutting disc cutter, relates in particular to a kind of extension mechanism of shearing the cutting disc cutter of sheet metal strip.

The cutting disc cutter is sheared former band, as shear steel, aluminium, sheet metal strip such as copper or alloy, its shearing and extension mechanism usually adopt one group of disk upper slitter and one group to descend cutter accordingly, upper slitter is installed on the cutter shaft, spacing between the upper slitter can be regulated, following cutter is installed in down on the cutter shaft, spacing between the following cutter is by the width adjusting of blade row, one side lower part of following cutter shaft has transition roller, active cylinder is arranged at the bottom of opposite side, transition roller and whole cylinder alive and other axle do not have mutual drive connection, they drive just rotation at band through the frictional force of out-of-date dependence band, and the below of active cylinder is pressure roller and Scroll, and Scroll is by driven by motor, pressure roller is pressed on the outer band of Scroll, the frictional force of pressure roller is rotated when relying on ribbon motion; Usually by gear drive, they rotate when work together between pressure roller and last cutter shaft, the following cutter shaft; Pressure roller, active cylinder, go up cutter shaft and following cutter shaft all is fixed on the frame, frame can be around a fulcrum rotation, thereby pressure roller can be pressed on the band on the Scroll or on the Scroll all the time.When former band travelled forward, upper and lower cutter shaft rotated simultaneously, and upper and lower cutter cuts into some narrow bands with wide former band.Owing to having the gap between cutter and blade row down, during cutting, former band is under the effect of upper slitter and following cutter, the strip edge of well cutting forms uneven longitudinal extension at the gap location of following cutter and blade row, if just the not treated rolling of this band will inevitably cause the strip coil of receiving on the axle spool big on one side, little on one side, become truncated cone-shaped, and the strip coil slip of keeping well is come off, have a strong impact on quality of strip.In order to eliminate and to reduce the harmful effect that the inhomogeneous extension of this strip edge brings product quality, must carry out the extension of band before band is sheared back, rolling handles, promptly suitable linear differential is set in the configuration by gear between pressure roller and following cutter shaft, make band in this interval generation extension of cutter shaft and pressure roller down, and guarantee certain percentage elongation, extend with the edge that remedies band, thereby the inhomogeneous extension of elimination strip edge improves quality of strip.Owing to be between the extension area of band to pressure roller from following cutter shaft channels and activating collaterals cylinder, when upper slitter and following cutter cutting of web, band is just producing extension on the cutter shaft down, gapped between following cutter on the same cutter shaft at present and blade row, the strip edge of well cutting is cheated different eventually in the extension of following cutter gap location and the extension of other position bands, still can stay in the strip edge of extend through one with following cutter shaft on the same wide step in gap, when band when rolling is longer on Scroll, accumulation through propagated error, strip coil just can form truncated cone-shaped again, and therefore this extension mechanism can not be eliminated the inhomogeneous extension of strip edge effectively.

The purpose of this utility model is to provide a kind of band cutting disc cutter extension mechanism, inhomogeneous extension that can more effective strip edge after elimination is cut, thus improve quality of strip.

According to a kind of band cutting disc of the purpose of this utility model cutter extension mechanism, comprise a pair of cutter shaft and the following cutter shaft gone up, be equipped with some on the last cutter shaft upper slitter, be equipped with some on the following cutter shaft and the corresponding cutter down of upper slitter, there is a pressure roller below of following cutter shaft, there is a Scroll below of pressure roller, transition roller is arranged at the bottom in following cutter shaft one side, last cutter shaft, between following cutter shaft and the pressure roller gear or chain and chain gear transmission, another downside and pressure roller upside at following cutter shaft are provided with the extension Control Shaft that has same line speed with following cutter shaft, are gear or chain and chain gear transmission between described extension Control Shaft and the following cutter shaft.

The utility model has the advantages that:,, so just effectively eliminated the inhomogeneous extension of band so the extension after the band cutting begins from extending Control Shaft owing to be provided with the extension Control Shaft that has same line speed with following cutter shaft.

Fig. 1 is the structural representation of band cutting disc cutter extension mechanism.

Fig. 2 is the structure chart of last cutter shaft and following cutter shaft.

Shown in Figure 1, a kind of band cutting disc cutter extension mechanism, comprise a pair of cutter shaft 3 of going up, following cutter shaft 2, one side lower part of following cutter shaft 2 is a transition roller 1, the opposite side bottom is provided with extends Control Shaft 4 and active cylinder 5, their below is provided with a pressure roller 6, it below pressure roller 6 Scroll 7, last cutter shaft 3, following cutter shaft 2, extend Control Shaft 4, active cylinder 5 all is fixed on the frame with pressure roller 6, frame can rotate with respect to Scroll 7 by a fulcrum on cutter, pressure roller 6 has the pressure effect to the band on Scroll 7 or the Scroll 7 all the time, last cutter shaft 3, following cutter shaft 2, extend and be gear drive between Control Shaft 4 and the pressure roller 6, following cutter shaft 2 is identical with the linear velocity of extending Control Shaft 4, and the linear velocity of pressure roller 6 is slightly larger than the linear velocity of extending Control Shaft 4; In addition, gear drive also can change the type of belt drive with chain and sprocket wheel into.Active cylinder 5 is positioned at pressure roller 6 tops, extends the inboard of Control Shaft 4 bottoms.

Shown in Figure 2, some upper slitters 10 are housed on the last cutter shaft 3, upper slitter 10 is fixed on the cutter shaft 3 by upper cutter head 11, spacing between the upper slitter 10 can be regulated on last cutter shaft 3 by upper cutter head 11, some cuttves 8 down are housed on the following cutter shaft 2, and the spacing between the following cutter 8 can be regulated by the width of blade row 9, and a little gap is arranged between blade row 9 and the following cutter 8, the edge of a knife of upper slitter 10 matches with the edge of a knife of following cutter 8, and the edge of a knife of upper slitter 10 inserts this gap.

Former band enters between cutter shaft 3 and the following cutter shaft 2 through crossing roller 1, is cut into some narrow bands by upper slitter 10 and following cutter 8, is subjected to the shearing force effect of upper slitter 10 and following cutter 8, and the strip edge that is cut produces inhomogeneous extension at the gap location of following cutter shaft 2.This band is through extending Control Shaft 4, active cylinder 5 and pressure roller 6, because cutter shaft 2 is identical with the linear velocity of extension Control Shaft 4 down, and rotates together, so is not extending between cutter shaft 2 and the extension Control Shaft 4 down former band cutting back; The linear velocity of pressure roller 6 is slightly larger than the linear velocity of extending Control Shaft 4 simultaneously, and band so just can be eliminated the inhomogeneous extension that strip edge is produced effectively extending Control Shaft 4 and pressure roller 6 these interval extensions when cutting.At last, the band that is cut extend through is batched by Scroll 7.

Scroll 7 is by the motor transmission, is wound onto on the Scroll 7 through the band of cutting with extend through, and pressure roller 6 is pressed on the band on the Scroll 7, make rolling smooth closely, when the strip coil on the Scroll 7 became big, pressure roller 6 and frame were upwards rotated around fulcrum together, and are slowly lifted.Along with the rolling of band, pressure roller 6, go up cutter shaft 3, down cutter shaft 2, extend Control Shaft 4 under the frictional force effect of band, homogeneous rises and rotates the linear velocity relation that keeps certain simultaneously each other, thereby makes band extend Control Shaft 4 and pressure roller 6 these interval extensions.And active cylinder 5 does not have the pressure transmission of machinery, only the frictional force effect by band drives and rotates, the effect of active cylinder 5 is in order to increase band at the coating face that extends on Control Shaft 4 and the pressure roller 6, increase band to extending the friction force of Control Shaft 4 and pressure roller 6, control band better this interval extension.Active cylinder 5 can with extend Control Shaft 4 switches, also can cancel active cylinder 5.

This cutting disc cutter extension mechanism mainly is applicable to the cutting extension of sheet metal strip, as steel band, aluminium strip, copper strips and alloy band etc.

Claims (3)

1, a kind of band cutting disc cutter extension mechanism, comprise a pair of cutter shaft (3) and the following cutter shaft (2) gone up, be equipped with some on the last cutter shaft (3) upper slitter (10), be equipped with some on the following cutter shaft (2) and the corresponding cutter (8) down of upper slitter (10), there is a pressure roller (6) below of following cutter shaft (2), there is a Scroll (7) below of pressure roller (6), transition roller (1) is arranged at the bottom in following cutter shaft (2) one sides, last cutter shaft (3), be gear or chain and chain gear transmission between following cutter shaft (2) and the pressure roller (6), it is characterized in that, at another downside of following cutter shaft (2) and the extension Control Shaft (4) that pressure roller (6) upside is provided with and following cutter shaft (2) has same line speed.

2, band cutting disc cutter extension mechanism according to claim 1 is characterized in that, is gear or chain and chain gear transmission between described extension Control Shaft (4) and the following cutter shaft (2).

3, band cutting disc cutter extension mechanism according to claim 1 and 2 is characterized in that.In pressure roller (6) top and the inboard of extending Control Shaft (4) bottom active cylinder (5) is set.

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