JP2582735Y2 - Air float type tension bar device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air float type tension bar apparatus used for removing paper wrinkles in a paper finishing process.

[0002]

2. Description of the Related Art As a conventional apparatus for removing wrinkles of a paper in a papermaking finishing process, there is an air-cooled expander roll apparatus 1 as shown in FIG. Thus, the air-cooled expander roll device 1 includes a fixed shaft 4 which is formed in an arched shape, and whose both ends are supported by the bracket 2 and the air introduction passage 3 is formed in the axial direction D. A plurality of bearings 5 are fitted around the outer periphery of the fixed shaft 4 at predetermined intervals in the axial direction D, and the bearings fitted between the bearings 5 and 5 or at both ends of the fixed shaft 4 in the axial direction are provided. 5 is fitted to the fixed shaft 4 by a detent key 6 outside in the axial direction D,
A fixed annular distance piece 7 is arranged, and an annular rotor 9 having an annular space 8 therein is fitted on the outer periphery of each bearing 5. A cylindrical rubber cover 10 extending substantially between both ends of the fixed shaft 4 is fitted so as to be able to rotate integrally with the rotor 9.

[0003] In the drawing, reference numeral 11 denotes a paper wound around the outer periphery of the rubber cover 10.

In the above-described air-cooled expander roll device 1, the paper 11 is wound around the rubber cover 10 and fed, and the rubber cover 10 and the rotor 9 rotate integrally, so that the rubber cover 10 The wrinkling of the paper 11 is performed on the convex side. At this time, air 12 is supplied to the air introduction passage 3 of the fixed shaft 4 to perform cooling.

[0005]

However, in such a conventional air-cooled expander roll apparatus 1, since the bearing 5 is fitted to the arch-shaped fixed shaft 4,
The clearance between the inner circumference of the bearing 5 and the outer circumference of the fixed shaft 4 needs to be increased to some extent in consideration of the time of assembly. As a result, the bearing 5 generates heat and causes damage, and the rubber cover 10 causes a heat storage phenomenon to generate deformation distortion. Therefore, in order to prevent this, the air 12 is fed into the air introduction passage 3 to cool the rolls as described above. In this case, however, it is necessary to cool down the entirety because only the fixed shaft 4 is cooled. Can not.

The present invention has been made in view of the above-mentioned problems. When removing paper wrinkles in a paper making process, there is no rotating part such as a bearing as in a conventional apparatus, and a bearing caused by heat generated by rotation. It is an object of the present invention to provide an air float type tension bar device which is free from damage.

[0007]

Means for Solving the Problems To achieve the above object,
Therefore, in the air float type tension bar device of the present invention,
With an axially extending hollow and arched
The wrinkle-extending bar is aligned with the bar axis and
ー Wrinkle extension bar on the convex curved side so that it communicates outward
Punched air holes and bar concave side of inner peripheral surface of hollow part
The inner peripheral surface of the hollow part is inscribed in the inward part and is closer to the bar convex curved side
Axle in a wrinkle-stretch bar to form a gap to the part
The middle vertical partition plate fixed at the center in the line direction and the hollow
ー Divided into convex curve side and bar concave curve side
Horizontally fixed to the portion of the bar near the shaft end
For the partition plate and the portion of the inner peripheral surface of the hollow portion closer to the bar convex curved side
In the direction of the bar axis of each horizontal partition
From the center end to the part of the inner peripheral surface of the hollow that is closer to the convex curved side
Vertical partition plates on both sides protruding toward the inner peripheral surface of the hollow part and
At the part near the bar shaft of the air chamber surrounded by each partition plate
Air supply pipes connected via valves, respectively.
You.

[0008]

[Function] For the air float type tension bar device of the present invention
In this case, each air surrounded by the inner peripheral surface of the hollow part and each partition plate
Connect an air supply pipe via a valve for each chamber, and
The air chambers in contact with each other are communicated through gaps
Of the amount of air discharged from each air hole to the outside of the bar
Aim for uniformity. Thereby, the convex curved side portion of the wrinkle extending bar
Wrinkle the paper that is wrapped in minutes and from the convex curved side of the bar
Floating and applying tension to the paper
Effectively removes paper wrinkles without providing any material.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

1 to 5 show an embodiment of the present invention.

The air float type tension bar device 13 has a hollow portion 14 penetrating in the axial direction D, and has a wrinkle extending bar 15 bent in an arch shape, and both ends of the wrinkle extending bar 15 in the axial direction D. In the said hollow part 1
4 and the wrinkle spreading bar 1 is welded.
5 and a shaft portion 17 having a hollow portion 16 penetrating in the axial direction D and communicating with the hollow portion 14. The wrinkle extending bar 15 is attached to the bracket 2 via the shaft portion 17. Supported.

A plurality of air holes 18 penetrating the thick portion in the radial direction are formed in the convex curved side portion of the wrinkle extending bar 15, and one end of the air hole 18 is opened toward the hollow portion 14. The other end is open radially outward of the wrinkle extending bar 15.

A vertical partition plate 19 of the hollow portion 14 of the wrinkle extending bar 15 is fixed in a direction orthogonal to the axial direction D, and the vertical partition plate of the hollow portion 14 of the wrinkle extending bar 15 is fixed. Between the vertical partition plate 19 and the hollow portion 14 between the right and left shaft portions 17.
Vertical partition plates 20 and 2 extending to the vicinity of the radial center portion of the
0 is fixed. A gap 21 is formed between each of the vertical partition plates 20 and 20 and the inner circumference of the wrinkle extending bar 15 on the side where the air hole 18 is formed, so that the adjacent hollow portions 14 communicate with each other. Have been.

The hollow portions 1 of the vertical partition plates 20, 20
4, horizontal partition plates 22, 22 are fixed to the end on the center side, and the horizontal partition plates 22, 22
, Extending from the hollow portion 14 to the hollow portion 16 of the shaft portion 17, the right and left hollow portions 14, 14 of the wrinkle extending bar 15 defined by the vertical partition plates 20, 20 and the hollow portions 16, 16 are divided into upper and lower hollow portions, respectively.

Thus, the hollow portions 16 of the left and right shaft portions 17 are formed.
The air supply holes 1 divided vertically by a horizontal partition plate 20
6-a, 16-b, 16-c, 16-d are formed.
In addition, the hollow portion 14 of the wrinkle extending bar 15 has
Inner peripheral surface, vertical partition plates 19 and 22, and horizontal partition plate 20
Are surrounded by and adjoin the gap 21 described above.
Air chambers 14-a, 14- communicating with each other through
b, 14-c and 14-d are formed.

In the drawing, V ₁ , V ₂ , V ₃ , V ₄ are air supply pipes 16-A, 16-A connected to the air supply holes 16-a, 16-b, 16-c, 16-d. 16-B, 16-C, 1
A valve for adjusting the flow rate of the air 12 connected to the 6-D,
Reference numeral 23 denotes an arc height changing device such as a worm gear device for changing the arched bending of the wrinkle extending bar 15, and reference numeral 11 denotes a band-shaped paper wound around the convex side of the wrinkle extending bar 15.

The paper 11 is placed on the convexly curved portion of the wrinkle extending bar 15.
When the paper 11 is wound and fed, the valves V ₁ , V ₂ ,
Open V _3, V _4, the air supply pipe 16-A, 16-B, 16
-C, 16-D to air chambers 14-a, 14-b, 14-
c, 14-d to supply air to each air chamber 14-d.
a, air hole 1 communicating with 14-b, 14-c, 14-d
8, air is discharged to the outside of the wrinkling bar 15, and
The paper 11 wrapped around the wrinkle removing bar 15 floats
To give tension.

An air float type tensioner shown in FIGS.
In the member device, each air chamber 14-a, 14-b,
Air supply pipes 16-A, 16-B, 14-c, 14-d
16-C and 16-D are connected.
Adjacent air chambers 14-a, 14-b, 14-c, 14-
d communicate with each other, so that each air chamber 14-a, 14-b,
Wrinkle extending from air holes 18 communicating with 14-c and 14-d
The air discharge amount to the outside of the bar 15 is made uniform, and the paper 11
Wrinkles will be effectively removed.

Further, from the air hole 18 of the wrinkle-reducing bar 15
Since the paper 11 is levitated by the discharged air,
Feeding and wrinkling of paper 11 without using rotating members such as rings
Removal can be performed, and rotation due to heat generated due to rotation can be performed.
There is no damage to the rolling members , and therefore the life of the air float type tension bar device 13 is extended.

[0020]

[Effect of the invention] As described above, the airflow of the present invention
According to the tension bar device, various types of
Excellent effects can be achieved. (1) Each air chamber surrounded by the inner peripheral surface of the hollow part and each partition plate
Connect the air supply pipe to the
Through the respective air chambers.
Equalize the amount of air ejected from the pores to the outside of the bar.
Wrapped around the convex curved part of the wrinkle spreading bar
Paper rises from the wrinkle bar and
Tension is applied to effectively remove paper wrinkles.
Wear. (2) Due to the air discharged from the air holes of the wrinkle spreading bar,
Using floating members such as bearings
Paper can be fed and wrinkles removed without
There is no damage to rotating members due to heat generated by rolling,
The life of the air float type tension bar
You.

[Brief description of the drawings]

FIG. 1 is a cutaway front view of one embodiment of the present invention.

FIG. 2 is a cross-sectional view in the II direction of FIG.

FIG. 3 is a cross-sectional view in the direction of arrow III in FIG. 1;

FIG. 4 is a cross-sectional view in the IV direction of FIG. 1;

FIG. 5 is a plan view of FIG. 1 including an arc height changing device.

FIG. 6 is a cut-away front view showing an example of a conventional air-cooled expander roll device.

[Description of Signs] 14 hollow portion 14-a air chamber 14-b air chamber 14-c air chamber 14-d air chamber 15 wrinkle extending bar 16-A air supply pipe 16-B air supply pipe 16-C air supply pipe 16-D air supply pipe 18 the air hole 19 intermediate portion vertical partition plate 20 either side vertical partition plate 21 gap 22 horizontal partition plate V ₁ valve V ₂ valve V ₃ valve V ₄ valve

Claims (1)

(57) [Scope of request for utility model registration] A hollow portion extending in the axial direction and having an arc;
A wrinkle-reducing bar curved in the shape of
Wrinkle bar so that it communicates from the hollow part to the outside of the bar
A plurality of air holes drilled in the convex curved side part and the inner peripheral surface of the hollow part
Of the inner peripheral surface of the hollow portion
ー Wrinkles are formed so as to form a gap with the portion closer to the convex curved side.
Intermediate vertical divider fixed to the center of the axial direction inside the bar
And the hollow part is closer to the bar convex curve side and the bar concave curve side
The part near the shaft end in the wrinkling bar to be divided into
Horizontal partition plate fixed to the inside, and the convex curved side of the inner peripheral surface of the hollow part
Of each horizontal partition so that a gap is formed
Bar convex bay from the end near the center in the bar axis direction to the inner peripheral surface of the hollow part
Vertical dividers on both sides protruding toward the curved side,
Bar axis of the air chamber surrounded by the inner peripheral surface of the empty space and each partition plate
Air supply connected to each part via a valve
An air float type tension bar device comprising a pipe .