JPH0467990U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the slitter knife holder of the present invention, and FIG. 2 is a circuit diagram of the same embodiment. 1... Slitter upper knife, 2... Bearing shaft, 3... Holder body, 5... Sensing part, 6...
Strain gauge, 9... Lower limit indicating voltage circuit, 11... Upper limit indicating voltage circuit, 13... Appropriate indicating voltage circuit, 1
4... Adjustment motor, 15... Motor control circuit, 1
6... Piston, 17... Cylinder, 20... Screw screw.

Claims (1)

[Scope of utility model registration request] A substantially horizontal bearing shaft having a slitter upper knife rotatably attached to its tip and a base end attached to a holder body, a sliding means for sliding the bearing shaft in the axial direction, and a sliding amount of the sliding means. a slide amount adjustment means for adjusting the amount of the adjustment; an adjustment motor for operating the adjustment means; a contact pressure detector installed on the bearing shaft and emitting a signal voltage according to the contact pressure between the upper knife and the lower knife; an upper limit instruction voltage generation circuit that issues an upper limit instruction signal when the upper limit setting value is exceeded; a lower limit instruction voltage generation circuit that issues a lower limit instruction signal when the signal voltage falls below the lower limit setting value; The adjustment motor is driven to move the bearing shaft in a direction in which contact pressure between the upper and lower knives increases, and the adjustment motor is driven in response to the upper limit instruction signal to move the bearing shaft in a direction in which contact pressure between the upper and lower knives is decreased. , and a motor control circuit that stops the adjustment motor when the contact pressure is appropriate, the bearing shaft has a receptacle formed in the middle part thereof by thinning the shaft vertically. A sensing portion is provided, the sliding means is constituted by a piston to which the base end of the bearing shaft is fixed, and a fluid pressure cylinder into which the piston is fitted, and the sliding amount adjusting means is arranged on the rear wall of the cylinder. Consisting of a screw screw that is screwed together and whose tip abuts the rear end of the piston,
The slitter knife holder, wherein the adjustment motor is arranged to rotate the screw screw, and the contact pressure detector includes a strain gauge affixed to a sensing portion of the bearing shaft. .