CN201647698U - A slitting machine unwinding air machine chuck - Google Patents

Abstract

The utility model discloses an unwinding air machine chuck of a slitting machine, which comprises: a cylinder cover, an air nozzle, a cylinder, a piston, a piston rod, a tension block, an inclined block, and a compression spring; the cylinder cover is fixedly connected with the cylinder, A cavity is formed, the piston is connected to one end of the piston rod and installed in the cavity; the spring is sleeved between the piston rod and the cylinder head, and the cylinder has an air hole on the side away from the cylinder head that communicates with the air nozzle on the cylinder head. The tight block is connected to the cylinder, and the inclined block is placed between the inner side of the tension block and the outer side of the other end of the piston rod; the chuck of the slitting machine unwinds the air machine so that the clamping force is not affected by subjective and objective factors and is always constant.

Description

A slitting machine unwinding air machine chuck

technical field

The utility model relates to a slitting machine, in particular to a slitting machine unwinding air chuck for clamping a film roll paper core when the slitting machine is unwinding.

Background technique

At present, the unwinding of the slitting machine is generally clamped with an air expansion chuck. The working principle of the inflatable chuck is: input the compressed air into the internal air bag of the chuck, and transmit the force raised by the air bag to the key block, so that the key blocks evenly distributed around the circumference are opened outward, and the inner diameter of the paper tube is pressed tightly to achieve clamping. the goal of. The disadvantage of this chuck is that the expansion force is closely related to the compressed air pressure and the operator's operation process, that is to say, the clamping force is closely related to objective factors and human subjective factors.

Utility model content

The purpose of the utility model is to provide a slitting machine unwinding air machine chuck for the deficiencies of the prior art.

The purpose of this utility model is achieved through the following technical solutions: a slitting machine unwinding air machine chuck, which includes: cylinder head, air nozzle, cylinder, piston, piston rod, tension block, inclined block, compression spring. Wherein, the cylinder head is fixedly connected with the cylinder to form a cavity, and the piston is connected with one end of the piston rod and installed in the cavity. The spring is socketed between the piston rod and the cylinder head. There is an air hole on the side of the cylinder away from the cylinder head that communicates with the air nozzle on the cylinder head. The tension block is connected with the cylinder. between the outer sides of the other end.

The beneficial effect of the utility model is that: the clamping head of the slitting machine unwinding air machine of the utility model keeps the clamping force constant without being affected by subjective and objective factors. At the same time, the utility model is based on the 3" collet, and can be put on the 5", 6", 12" and other collets according to different needs, which is flexible and adaptable, and reduces the manufacturing cost.

Description of drawings

Figure 1 is a schematic diagram of the structure of the chuck of the 3" unwinding air machine;

Figure 2 is a schematic diagram of installing 6", 12" and other air machine chucks on the 3" unwinding air machine chuck;

In the figure: 1, cylinder head, 2, air nozzle, 3, cylinder, 4, piston, 5, piston rod, 6, tension block, 7, inclined block, 8, spring, 9, second tension block, 10 , sleeve, 11, compression spring, 12, pin, 13, set screw.

Detailed ways

The utility model is described in detail below according to the accompanying drawings, and the purpose and effect of the utility model will become more obvious.

As shown in Figure 1, the utility model slitting machine unwinding air chuck includes: cylinder head 1, air nozzle 2, cylinder 3, piston 4, piston rod 5, tension block 6, inclined block 7, compression spring 8. Among them, the cylinder head 1 is fixedly connected with the cylinder 3 to form a cavity, the piston 4 is connected to one end of the piston rod 5, and is installed in the cavity, the spring 8 is sleeved between the piston rod 4 and the cylinder head 1, and the cylinder 3 is moved away from the cylinder. One side of the cylinder head 1 has an air hole communicating with the air nozzle 2 on the cylinder head 1, the tension block 6 is connected with the cylinder 3, and the inclined block 7 is placed between the inner surface of the tension block 6 and the outer surface of the other end of the piston rod 5. The other end of the piston rod 5 is in contact with the inclined plane between the inclined block 7 .

The working process of the unwinding air machine chuck of the utility model slitting machine is as follows: when the film roll is installed, the compressed air ( 3-6kg/cm) into the cylinder 3 through the air nozzle 2, so that the piston 4 and the piston rod 5 retreat together; due to the action of the inclined plane, the inclined block 7 and the tension block 6 return to the normal size position (the diameter of the 3" chuck is φ72 ), when the chuck seat moves forward until the chuck completely enters the paper core hole, pull out the compressed air inflation gun, the air inlet is opened, and the air leaks out automatically. Due to the action of the compression spring 8, the piston 4 drives the piston rod 5 forward OK, the tension block 6 is opened by the action of the inclined plane of the inclined block 7, and the maximum diameter of the 3” pneumatic chuck can reach φ83.9mm, which can meet the requirements even if the aperture of the paper tube is too large.

As shown in Figure 2, if the aperture of the paper core is 6", 12", etc., the corresponding parts can be installed on the 3" chuck, and the parts include: the second tension block 9, the sleeve 10, the compression spring 11, Pin 12, positioning screw 13, etc., the second tension block 9 is installed in the sleeve seat 10. When the first tension block 6 of the 3" clamp shown in Figure 1 is opened, the second tension block 9 is pushed along the sleeve seat 10 holes flare outwards. The requirement of the diameter of the outer circle after tensioning can be changed by changing the diameter of the outer circle of the second tensioning block 9 and the sleeve 10 according to the needs of the user. The compression spring 11 plays the role of restoring the tension block 9 .

The above-described embodiments are used to explain the utility model, rather than to limit the utility model. Within the spirit of the utility model and the protection scope of the claims, any amendments and changes made to the utility model all fall into the scope of the utility model. protected range.

Claims (1)

1. a chuck of unwinding gas machine of splitting machine is characterized in that it comprises: cylinder cap (1), valve (2), cylinder (3), piston (4), piston rod (5), tensioning piece (6), skewback (7), compression spring (8); Wherein, cylinder cap (1) is captiveed joint with cylinder (3), forms cavity, and piston (4) links to each other with piston rod (5) one ends, is contained in this cavity; Spring (8) is socketed between piston rod (4) and the cylinder cap (1), cylinder (3) has a pore to communicate with valve (2) on the cylinder cap (1) in the side away from cylinder cap (1), tensioning piece (6) links to each other with cylinder (3), and skewback (7) places between tensioning piece (6) medial surface and piston rod (5) other end lateral surface.

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