JPH09325636A - Chuck device for roller - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely chuck the journal of a roller and to easily and accurately set the advancing amount of a pressing rod for a chuck even in the case of the roller having the different dimension of the journal by advancing the pressing rod together with a cylinder for a mask and pressing the leading edge of the pressing rod to the end face of the journal. SOLUTION: Cylinders for a chuck 26 and 26A and the cylinders for a mask 23 and 23A are respectively independently actuated. Namely, the advancing amount of the cylinders 26 and 26A can be set without considering an amount by which barrels for a mask 21 and 21A should be advanced at all. The cylinders 26 and 26A have only to be positioned at positions where distances between the end face of the journal 2 and the leading edges of the pressing rods for a chuck 15 and 16 are a little shorter than the stroke length of the cylinders 26 and 26A. Therefore, the journal 2 projected from the roller 1 is covered by advancing the rods 15 and 16 by an appropriate amount by using the cylinders 23 and 23A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chuck device for supporting and covering journals at both ends of a roller, and more particularly to a roller chuck device utilizing a cylinder as an operating means.

[0002]

2. Description of the Related Art In manufacturing a roller, there is a step of wiping the surface of the roller with alcohol or the like. In this case, in order to prevent alcohol or the like from adhering to the journals protruding at both ends of the roller, the chuck device shown in FIG. Is used.
This conventional chuck device, as shown in FIG.
A U-shaped support body 3 for supporting the journal 2 projecting at both ends of the roller 1, a lifter cylinder 4 for moving the support body 3 up and down, and a pair of chuck pressing rods arranged to face each other above. 5 and pressing rod 5 for each chuck
Cylinder 6 for advancing each and pressing rod 5 for each chuck
And a mask cylinder 7 that is concentrically attached to the.

In the chuck device having the above structure, as shown in FIG. 1B, when the support body 3 is moved upward by the operation of the lifter cylinder 4, the cylinder 4 is moved at a predetermined height position.
The upper limiter 8 of (3) operates, and the upward movement of the support body 3 stops, and at the same time, both cylinders 6 and 6 start operating to advance the chuck pressing rods 5. When both chuck pressing rods 5 are pressed against both end surfaces of the journal 2, the intermediate limiter 10 of the cylinder 6 operates, the air supply to the cylinder 6 is stopped, and at the same time, the lifter cylinder 4 starts operating. As a result, the journal 2 is chucked by the pressing rods 5 for both chucks.

When the lifter cylinder 4 is moved down to a predetermined position, the lower limiter 9 thereof is actuated, the cylinders 6 and 6 are actuated again, and the chuck pressing rods 5 and 5 are further advanced. As a result, the chuck pressing rods 5, 5
The tip end of the mask elastically recedes relatively, and both mask cylinders 7, 7
Covers both ends of the journal 2. Therefore, the roller wiping operation can be performed without adhering alcohol or the like to the journal 2.

[0005]

By the way, in the conventional chuck device, as described above, when chucking the journal 2, the air supply to the cylinder 6 must be controlled to set the amount of advancement of the chuck pressing rod 5. I have to. However, even if the air supply is controlled in the cylinder 6, the advancing speed of the chuck pressing rod 5 does not correspond accurately, so that the advancing amount of the rod 5 varies. Therefore, when the size of the roller to be chucked is different, it takes a lot of time and effort to set the amount of advancement of the rod 5, and the amount of advancement of the rod 5 varies, so that the roller (journal 2) There is a possibility that a chuck error may occur.

[0006]

The present invention has the following constitution in order to solve such a point. That is, the present invention comprises a pressing rod for a chuck that is pressed against the end surface of the journal of the roller to support the roller, and a cylinder for a mask that is concentrically arranged and fixed to the tip of the rod. In a chuck device of a roller in which a tip of a chuck pressing rod is elastically retractable, a mask cylinder for advancing the chuck pressing rod to cover the journal with a mask cylinder, and a chuck together with the mask cylinder. And a chuck cylinder for pushing the tip of the pressing rod against the end face of the journal.

<Description> The chuck cylinder and the mask cylinder are operated independently of each other. That is, since the amount of advancement of the chuck cylinder can be set without considering the amount of advancement of the mask cylinder at all, it may be uniquely set based on its own stroke length, not the air supply control. . That is, the cylinder may be positioned at a position where the distance between the journal end surface and the tip of the chuck pressing rod is slightly smaller than the stroke length of the chuck cylinder.

Therefore, after the chuck pressing rod is advanced by the chuck cylinder by the above positioning to chuck the journal of the roller, the mask pressing cylinder is advanced by an appropriate amount to move the mask. The journal protruding from the roller can be covered with the cylinder for use.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below. FIG. 1 is a perspective view of a chuck device according to the present invention, and FIG. 2 is a cross-sectional view of a chuck pressing rod of the device. The chuck device according to the present invention includes a U-shaped support 11 located below the roller 1, and a lifter cylinder 12 for vertically moving the support 11. The support 11 has V-shaped recesses 11a at both ends for supporting both ends of the journal 2 of the roller 1. An upper limit limiter 13 and a lower limit limiter 14 are attached to the upper and lower positions of the lifter cylinder 12.

At the upper position, a pair of chuck pressing rods 15 and 16 are arranged so as to face each other. One of the chuck pressing rods 15 has a spline shaft 17 and a rod 18 protruding from the spline shaft 17, as shown in FIGS. 1 and 2. The tip of the rod 18 is formed in a conical shape so as to be engaged with the conical concave portion of the end surface of the journal 2, and the flange 18a at the base thereof is at one end of the coil spring 19 in the spline shaft 17 and the shaft 17 thereof. It is pressed in the direction to project from. The other end of the coil spring 19 is in contact with the receiving plate 20 in the spline shaft 17. A mask cylinder 21 is concentrically arranged and fixed to the tip of the spline shaft 17. The base of the spline shaft 17 is rotatably connected to the rod of the mask cylinder 23 via a rotary joint 22 (see FIG. 3).

The mask cylinder 23 is a slide base 2.
It is fixed to the side wall of No. 4 by appropriate means. The slide base 24 is slidably fitted to the guide bar 25 so that the roller 1
It is possible to move in the direction of approaching. The guide bar 25 is fixedly supported on a base (not shown) of the apparatus. An extension portion 24a extending upward on the tip side of the slide base 24
The rod of the chuck cylinder 26 is connected to. The chuck cylinder 26 is arranged parallel to and adjacent to the mask cylinder 23, and is positioned and fixed to the apparatus by appropriate means (not shown).

The other chuck pressing rod 16 has a rod 27 having a conical tip, and this rod 27 is elastically retractably connected to the rod of another mask cylinder 23A. Further, the mask cylinder 21A is concentrically arranged and fixed to the rod of the mask cylinder 23A. The mask cylinder 23A is fixed to the upper surface of the slide base 24A by an appropriate means, and the mask cylinder 21A is movably supported on a plate portion extending forward from the slide base 24A. Another chuck cylinder 26 is attached to the extension portion 24b extending laterally from the slide base 24A.
The rod of A is connected. The chuck cylinder 26A is also arranged parallel to and adjacent to the mask cylinder 23A, and is positioned and fixed to the apparatus by appropriate means (not shown).

On the spline shaft 17, FIG.
As shown in FIG. 5, a drive gear 30 is fitted, and a transmission gear 29 attached to the shaft of the motor 28 meshes with the drive gear 30. By the way, the chuck cylinder 26 is positioned and fixed such that the distance between the end surface of the journal 2 and the tip of the rod 18 of the chuck pressing rod 15 is slightly smaller than its own stroke length. Similarly, the other chuck cylinder 26A includes the end face of the journal 2 and the rod 27 of the chuck pressing rod 16.
It is positioned and fixed so that the distance from the tip is slightly smaller than the stroke length of the self.

Next, the operation of the chuck device of the present invention will be described. First, as shown in FIG. 3 (A), both ends of the journal 2 of the roller 1 conveyed by a conveyor (not shown) are engaged in both recessed portions 11a of the support 11, and the lifter cylinder 12 is operated to operate the roller. Lift 1 upwards.
Next, when the roller 1 is lifted to a predetermined height position, the upper limiter 13 is activated to stop the upward movement of the lifter cylinder 12 and simultaneously activate the chuck cylinders 26, 26A. When the rods of both chuck cylinders 26, 26A advance and stop by their own stroke length without being controlled by the air supply, the chuck pressing rods 5, 16 advance by this stroke length together with the slide bases 24, 24A. Stop. As a result, as shown in FIG. 3 (B), the rods 18 and 27 of the pressing rods 15 and 16 for both chucks are brought into contact with both end faces of the journal 2 and slightly retracted to support (chuck) the journal 2.

Next, when the lifter cylinder 12 starts moving downward and the lower limit limiter 14 operates, the mask cylinders 23 and 23A start operating and the chuck pressing rods 15 and 16 move forward. As a result, the mask cylinder 2
As shown in FIG. 3 (C), the reference numerals 1 and 21A move forward to contact both end surfaces of the roller 1 and cover both ends of the journal 2. When the mask cylinders 21 and 21A are advanced, the rods 18 and 27 are moved by the amount of the advance and the chuck pressing rods 15 and
Elastically retracts to 16. Incidentally, the mask cylinder 23,
When the chuck pressing rods 15 and 16 are moved forward at 23A, the mask cylinders 21 and 21A surely move to the roller 1.
Cylinders 23 and 23A for both masks so as to contact the end faces
You can set the amount of advance.

Next, the motor 8 operates and the spline shaft 17 rotates via the transmission gear 29 and the drive gear 30, so that the roller 1 also rotates. Therefore, the surface of the roller 1 can be wiped with alcohol. When the wiping operation is completed and the motor 28 is stopped, the mask cylinders 23 and 23A retract, and the lifter cylinder 12 moves the support 11 upward.

When the support 11 is moved up to a predetermined height, the upper limiter is actuated, and the chuck cylinders 26, 26A.
Back the journal 2 so that both ends of the journal 2 are recessed in the support 11
It is locked to 1a and 11a. After that, the lifter cylinder 12 moves downward, and the roller 1 for which the work has been completed is removed from the support 11.

As described above, the chuck cylinder 2
6, 26a and the mask cylinders 23, 23a are arranged in parallel, the length of the entire apparatus can be reduced, so that the installation space can be reduced.

[0019]

As described above, according to the present invention,
The chuck cylinder moves the chuck pressing rod forward together with the mask cylinder, and then the mask cylinder advances the chuck pressing rod so that the mask cylinder covers both ends of the roller journal. The amount of advance of the cylinder can be uniquely set based on its own stroke length. Therefore, the journal of the roller can be securely chucked, and the advance amount of the chuck pressing rod can be easily and accurately set even for rollers having different journal sizes.

[Brief description of drawings]

FIG. 1 is a perspective view of a chuck device according to the present invention.

FIG. 2 is a cross-sectional view of a chuck pressing rod of the same apparatus.

FIG. 3 is a diagram illustrating the operation of the apparatus.

FIG. 4 is an operation explanatory view of a conventional chuck device.

[Explanation of symbols]

 1 Roller 2 Journal 15, 16 Chuck Push Rod 17 Spline Shaft 23, 23A Mask Cylinder 26, 26A Chuck Cylinder

Claims (1)

[Claims] 1. A chuck pressing rod for supporting the roller by being pressed against the end faces of a journal protruding from both ends of the roller, and fixed to the chuck pressing rod by being concentrically arranged on the tip thereof. And a mask cylinder for covering the journal, wherein the tip portion is attached to the chuck pressing rod so as to be elastically retractable. A mask cylinder for advancing the chuck pressing rod so as to cover the same, and a chuck cylinder for advancing the chuck pressing rod together with the mask cylinder to press the tip portion against the end face of the journal. And roller chuck device.