CN-117682390-B - Universal integrated inflatable chuck of splitting machine

Abstract

The invention discloses a universal integrated inflatable chuck of a splitting machine, and aims to solve the defects that the conventional inflatable chuck is only suitable for tensioning and fixing paper cores with one size specification and has poor universality. The clamping device comprises a clamping head body, wherein a plurality of clamping sections which are sequentially reduced along the axial outer diameter are arranged on the clamping head body, all the clamping sections form a step shaft-shaped structure, an axially moving piston is arranged in the clamping head body, a plurality of clamping bodies which can radially move are arranged on the clamping sections, inclined pushing surfaces are correspondingly arranged on the outer wall of the piston and the clamping bodies, inclined abutting surfaces are arranged on the clamping bodies, the pushing surfaces are abutted to the abutting surfaces, and the axial movement of the piston drives the clamping bodies to radially move. The inflatable chuck of this patent application is general in the clamping of the refill of multiple size specification, does not need to dismouting the chuck when the clamping and changes, convenient operation, and it is effectual to fix the refill fastening that rises.

Inventors

• LU HUASHUAI
• XIAO LIN

Assignees

• 浙江华创机电科技有限公司

Dates

Publication Date

20260508

Application Date

20231123

Claims (9)

1. 1. A universal integrated inflatable chuck of a splitting machine comprises a chuck body, and is characterized in that a plurality of clamping sections which are sequentially reduced along the axial outer diameter are arranged on the chuck body, all the clamping sections form a stepped shaft-shaped structure, an axially movable piston is arranged in the chuck body, a plurality of clamping bodies which can radially move are arranged on the clamping sections, inclined pushing surfaces are correspondingly arranged on the outer wall of the piston and the clamping bodies, inclined abutting surfaces are arranged on the clamping bodies, the pushing surfaces are abutted with the abutting surfaces, the piston axially moves the clamping bodies to radially move, an inflatable cavity is arranged on one side of the piston in the chuck body, a return spring is arranged on the other side of the piston, a piston cavity is arranged in the chuck body, the piston is in a stepped shaft-shaped structure, the piston is in adaptive connection with the piston cavity, the return spring is arranged between the inner wall of the piston cavity and the stepped surface of the piston, the rear end of the chuck body is connected with a mounting seat in a movable sleeved mode, a positioning spring is arranged between the chuck body and the mounting seat, a locking pin is arranged on the inner wall of the inflatable cavity, inclined guide surface is arranged on the end of the locking pin, a pre-tight spring is arranged between the locking pin and the chuck body, the locking pin end extends out of the inner wall of the piston cavity, the piston cavity is in a position-locking pin is in a position opposite to the piston cavity, and is in a position opposite to the piston cylinder is in a position of the movable sleeve, and is in a position of the piston cylinder, and is in a position of a piston cylinder.
2. 2. The universal integrated gas cartridge for a slitter machine of claim 1, wherein the end edges of the clamping segments are beveled.
3. 3. The universal integrated gas charging chuck of claim 1, wherein the pushing surface is provided with a T-shaped connecting bar, the abutting surface is provided with a T-shaped connecting groove, the connecting bar is connected with the connecting groove in an adapting way, and the connecting bar can slide along the connecting groove.
4. 4. The universal integrated gas charging cartridge of claim 1, wherein the clamping body comprises a slider and an expansion key, the expansion key is fixedly connected to the slider, and the abutment surface is disposed on the slider.
5. 5. A universal integrated gas cartridge for a slitter machine according to any one of claims 1 to 4, wherein the outer surface of the cartridge body is connected to a rubber pad.
6. 6. A universal integrated gas cartridge for a slitter machine according to claim 1, wherein a sealing ring is provided between the outer wall of the piston and the inner wall of the piston chamber.
7. 7. The universal integrated inflatable chuck of the splitting machine according to claim 1, wherein the front end cover and the rear end cover are respectively arranged at two ends of the chuck body, the rear end cover is provided with an inflation inlet, and the inflation inlet is communicated with the inflation cavity.
8. 8. A universal integrated gas cartridge for a slitting machine as set forth in claim 1, 6 or 7 wherein the rear end of the cartridge body is provided with a flange.
9. 9. A universal integrated gas cartridge for a slitter machine according to claim 1, wherein a return spring is provided between the push rod and the cartridge body.

Description

Universal integrated inflatable chuck of splitting machine Technical Field The invention relates to a clamping mechanism, in particular to a universal integrated inflatable chuck of a splitting machine. Background The inflatable chuck is mainly used for fastening and fixing the unreeling paper core of a splitting machine in a tensioning manner, is used in pairs left and right, is generally designed to be a 3-inch or 6-inch independent chuck in the market, needs to be frequently switched in actual use, is used for detaching one type of chuck to be replaced by another type of chuck, is very heavy and very physical, is frequently detached, is easy to wear at the end part of the chuck to affect precision, is also provided with a structure for nesting the 6-inch chuck on the 3-inch chuck in the market, is inconvenient to detach the 6-inch nest when the 3-inch chuck is used, and is easy to slip when the unreeling tension of the nested structure is large in actual use, so that the paper core is easy to wear. Disclosure of Invention In order to overcome the defects, the invention provides the universal integrated inflatable chuck of the splitting machine, which is universal for clamping paper cores with various sizes, and the chuck is not required to be disassembled and replaced during clamping, so that the operation is convenient, and the tensioning and fixing effects on the paper cores are good. In order to solve the technical problems, the universal integrated inflatable chuck of the splitting machine comprises a chuck body, wherein a plurality of clamping sections sequentially decreasing along the axial outer diameter are arranged on the chuck body, all clamping sections form a step shaft-shaped structure, a piston moving axially is arranged in the chuck body, a plurality of clamping bodies capable of moving radially are arranged on the clamping sections, inclined pushing surfaces are correspondingly arranged on the outer wall of the piston and the clamping bodies, inclined abutting surfaces are arranged on the clamping bodies, the pushing surfaces are abutted to the abutting surfaces, and the piston moves axially to drive the clamping bodies to move radially. The paper core is fastened at a tensioning timing, the end part of the paper core is sleeved on a clamping section matched with the paper core, then the piston moves axially, and the clamping body is pushed to move radially outwards through the fitting stress of the pushing surface and the abutting surface, so that the paper core is tensioned on the inner wall of the paper core, and the paper core is tensioned and fixed. Because a plurality of clamping sections with different outer diameters are arranged, the tensioning and fixing of paper cores with different sizes can be realized by the different clamping sections, and therefore, the universality of the inflatable chuck is good. The inflatable chuck of this patent application is general in the clamping of the refill of multiple size specification, does not need to dismouting the chuck when the clamping and changes, convenient operation, and it is effectual to fix the refill fastening that rises. Preferably, one side of a piston in the chuck body is provided with an air charging cavity, and the other side of the piston is provided with a return spring. The air inflation cavity is inflated, so that the air pressure in the air inflation cavity is increased, the piston is pushed to move to the return spring side, and the clamping body is pushed outwards in the radial direction, so that the air inflation device is stable and reliable. Preferably, the pushing surface is provided with a T-shaped connecting strip, the abutting surface is provided with a T-shaped connecting groove, the connecting strip is connected with the connecting groove in an adaptive manner, and the connecting strip can slide along the connecting groove. Through the cooperation of the connecting strip of T shape and the spread groove of T shape, make the piston can realize the promotion and the pulling to the centre gripping body, promote the tight refill that rises with the centre gripping body radially outwards when promoting, make the centre gripping body break away from with the refill inner wall with the centre gripping body radially inwards pulling when pulling. Preferably, the clamping body comprises a sliding block and an expansion key, the expansion key is fixedly connected to the sliding block, and the abutting surface is arranged on the sliding block. The sliding block and the expansion key are connected to form a clamping body, so that the clamping head is convenient to install on the chuck body. Preferably, a rubber pad is connected to the outer surface of the clamping body. The setting of cushion can improve the reliability that the refill rises tightly. Preferably, a piston cavity is arranged in the chuck body, the piston is of a step shaft-shaped structure, the piston is connected with the piston cavity in an adaptive manne