JPH0735807B2 - Heat treatment roll - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat treatment roll, and more specifically, to one or both rolls of two combined rolls which are arranged to face each other so as to sandwich an object to be treated. The present invention relates to a heating roll or a cooling roll that is used by heating or cooling the roll work surface by flowing a medium such as steam, hot water, hot water, hot oil, or cooling water inside.

[0002]

2. Description of the Related Art The structure of a conventional heat treatment roll will be described below. As shown in FIG. 5, a heat treatment roll (100) is rotatably supported by bearings (101) on both left and right sides. The heat treatment roll (100) is arranged so as to face the counter roll (102), and a gap (103) set with high precision exists between the two.

The heat treatment roll (100) is roughly divided into a roll body (104), a first roll shaft member (105) and a second roll shaft member (106).

The roll body (104) has a hollow cylindrical shape with a roll working surface (107) formed on the outer circumference.

The first roll shaft member (105) is fitted into one opening of the roll main body (104) to provide a medium inlet (1).
There is a rotary joint (110) fitted with 08) and a medium outlet (109).

The second roll shaft member (106) is fitted into the other opening of the roll body (104) and is connected to a driving means (not shown) such as a motor via a gear (111). ing.

A columnar medium space (112) is formed inside the heat treatment roll (100). Further, the roll main body (104) is heated or cooled by the heating medium or the cooling medium fed into the inside from the medium feeding port (108), and then the medium after thermal work is discharged into the medium discharging port (109).
Is configured to be discharged from.

Reference numeral (113) is the first roll shaft member (10
5) is a through hole provided in the medium space (112) and the medium outlet of the rotary joint (110).
It communicates with (109).

A delivery pipe (114) is attached to the rotary joint (110). This infeed pipe
(114) extends from the medium inlet (108),
Through the through hole (113), it reaches almost the center of the medium space (112). The diameter of the pipe (114) is smaller than the diameter of the through hole (113), and the gap (11
5) is formed.

A medium, for example, hot oil is sequentially fed from the medium inlet (108) of the rotary joint (110).
As a result, the hot oil enters the medium space (112) through the inlet pipe (114). The hot oil that has entered the medium space (112) heats the roll body (104), and then reaches the rotary joint (110) through the gap (115) between the through hole (113) and the pipe (114). , Through the medium outlet (109) of the rotary joint (110).

In the heat treatment roll (100) having the above structure, the medium is discharged from the feeding side, so that the flow of the medium in the medium space (112) becomes a hairpin curve (see arrow), The flow of the medium on the side of the second roll shaft member (106), which is the driving side, is deteriorated and sometimes stays for a long time. As a result, the heating or cooling action on the roll body (104) is not uniform, and the left and right heating actions or cooling actions are also exerted on the bearing (101).
(00) cannot rotate on the same axis and tilts with respect to the pair of rolls (102), which causes a change in the gap between the rolls.

[0012]

[Means for Solving the Problems] In order to solve the above problems, the following means were taken.

That is, the heat treatment roll of the present invention has a hollow cylindrical roll body having a roll work surface formed on the outer periphery thereof, and a rotary joint fitted in one opening of the roll body and having a medium inlet. The first roll shaft member, and the second roll shaft member that is fitted into the other opening of the roll body and that is connected to a driving means such as a motor. And rotatably supported by bearings attached to the second roll shaft member, respectively, and heated or cooled by a heating medium or a cooling medium fed inside from the medium feeding port, and then the medium after the thermal work is discharged to the medium discharging port. A heat treatment roll configured to be discharged from the inside of the second roll shaft member while flowing along the roll work surface. The first roll shaft member has a through hole communicating with the medium inlet port and extending in the axial direction, and a plurality of first heating passages extending in the axial direction along the roll working surface. And a first guide passage for communicating the first heating passage with the through hole, and the second roll shaft member has a plurality of second heating members extending in the axial direction along the roll working surface. A passage, a return passage extending axially inward from the vicinity of the outer end of the second roll shaft member, which is a position further outward than the position where the bearing on the second roll shaft member side exists, and the second heating A second guide passage extending from the passage to the inner end of the return passage and a medium for reaching the vicinity of the outer end of the second roll shaft member to a medium space formed inside the roll body. A transport pipe, the first heating passage and the second heating passage. Bets together is provided so that it can communicate, and the medium space and the medium outlet is what the discharge pipe such that communicably thus provided.

[0014]

In the heat treatment roll of the present invention, the medium fed from the medium feed port flows through the flow passage and the heating passage inside the second roll shaft member and along the roll working surface.

As a result, the heating action or cooling action on the roll body is made uniform. Further, by guiding the medium into the inside of the second roll shaft member, the heating action or the cooling action exerted on the left and right bearings that rotatably support the heat treatment roll is made uniform, and the heat treatment roll is opposed to the counter roll. It will never tilt.

Further, the medium fed in from the medium feeding port passes through the through hole in the first roll shaft member to form the first roll shaft member.
Enter the guide passage. Then, it flows through the first induction passage and enters the first heating passage communicating with the first induction passage.

Then, it flows in the axial direction along the roll work surface of the roll main body, and the second roll shaft member of the second roll shaft member
It enters the heating passage and flows through it. Medium is first
The roll body is heated or cooled while flowing through the heating passage and the second heating passage.

After that, the medium after the thermal work passes through the second guide passage and enters the return passage from the inner end portion, and flows through the medium toward the vicinity of the outer end portion of the second roll shaft member. .

The medium reaching the vicinity of the outer end of the second roll shaft member is guided to the medium space through the transport pipe. The medium that has reached the medium space is discharged from the medium discharge port through the discharge pipe.

As described above, by flowing the medium along the roll working surface of the roll body, the heating action or the cooling action on the roll body becomes uniform, and at the same time, the retention of the medium can be prevented.

Further, by flowing the medium to the vicinity of the outer end of the second roll shaft member, the heating or cooling action on the left and right bearings that rotatably support the heat treatment roll is made uniform. As a result, it is possible to more effectively eliminate the problem that the heat treatment roll is inclined with respect to the counter roll and cannot be driven smoothly.

[0022]

According to the heat treatment roll of the present invention, the retention of the medium inside can be prevented, and the inclination of the heat treatment roll caused by the difference in heating action or cooling action on the bearing can be prevented.

[0023]

EXAMPLES In order to further clarify the present invention, examples will be described below, but the present invention is not limited thereto.

Embodiment FIG. 1 and FIG. 2 are sectional views of a heat treatment roll (1) showing an embodiment of the present invention. As is clear from the drawing, the medium space (10) is formed inside the heat treatment roll (1). The heat treatment roll (1) is rotatably supported by bearings (12) arranged on the left and right, and is arranged so as to face the pair of rollers (R).

Reference numeral (14) is a cylindrical roll body having a roll work surface (16) formed on the outer circumference. The roll body
The first roll shaft member (18) is fitted in one of the openings (right side in FIG. 1) in (14), and the second roll shaft member (20) is fitted in the other opening. ing.

As shown in the drawing, the first roll shaft member (18) and the second roll shaft member (20) are roughly divided into an outer circumference and an inner circumference of the roll body (14). A fitting portion (22), a side plate portion (24) extending from the fitting portion (22), and a protruding portion (26) extending outward from the side plate portion (24).

The fitting portions (22) of both roll shaft members (18) and (20) have heating passages (first roll shaft members (first roll shaft members (16)) extending along the roll working surface (16) at predetermined intervals in the circumferential direction. 18) is the first heating passageway (28), the second roll shaft member (20) is the second
Eight heating passages (30) are provided (see FIGS. 3 and 4).

In the side plate portion (24), the heating passage (2
8), 8 guide passages (1), (8) guide passages extending in a direction orthogonal to the axial direction (the first roll shaft member (18) is the first guide passage (32), the second roll The shaft member (20) is referred to as the second guide passage (34)), and all gather at the central portion in the radial direction, and in the first roll shaft member (18), the distribution space (36). However, in the second roll shaft member (20), the collection space (38) is formed.

The protrusion (26) has an elongated space extending in the axial direction. Roughly speaking, the difference in internal structure between the first roll shaft member (18) and the second roll shaft member (20) is whether or not the space in the protrusion (26) penetrates. , As is clear from the figure,
The roll shaft member (18) has a through hole (40) that penetrates in the axial direction.
And that of the second roll shaft member (20) is
The elongated return passage (44) extends from 8) to the vicinity of the outer end portion (42). The first roll shaft member (18) and the second roll shaft member (20) as described above may be manufactured by a known method.

Reference numeral (46) is a rotary joint having a medium inlet (48) and a medium outlet (50), and the medium inlet (48) is in fluid communication with the through hole (40). There is. A discharge pipe (52) extends from the medium discharge port (50), terminates at a position near the medium space (10) through the through hole (40), and has a bearing (54 ).

Reference numeral (56) is a plate-like body which supports the bearing (54). The plate-like body (56) is fixed to the first roll shaft member (18) by a screw (58) in the medium space (10), and the plate-like body (56) and the bearing (54) serve to The through hole (40) and the distribution space (36) are separated from the medium space (10). The rotary joint (46) is a heat treatment roll (1).
Although it is attached to the outer end (60) of the first roll shaft member (18), the rotation of the heat treatment roll (1) is prevented from being transmitted to this rotary joint (46) by a bearing or a sliding mechanism. ing.

Reference numeral (62) is a transportation pipe, which passes through the return passage (44) and is located at the outer end (42) of the second roll shaft member (20).
It plays the role of guiding the medium reaching the vicinity to the medium space (10) by changing the flow by 180 degrees. This transport pipe
(62) is attached in a state of being inserted into the through hole (64) of the partition plate (66) having the through hole (64) penetrating in the thickness direction at the center. The separator plate (66) is a medium space
The screw (68) is fastened to the second roll shaft member (20) at (10). Further, the partition plate (66), the side plate portion (24) and the protruding portion
(26), the return passageway (44) and the gathering space (38)
Will be isolated from the medium space (10) except the transportation pipe (62).

A motor (not shown) is connected to the outer end portion (42) of the second roll shaft member (20) via a gear (70),
When the motor is driven, the heat treatment roll (1) rotates.

Reference numeral (72) is a cylindrical seal member disposed inside the roll body (14), and has a packing (7
4) is installed. The seal member (72) is for sealing the gap (76) between the first roll shaft member (18) and the second roll shaft member (20).
By (72), the first heating passage (28) and the second heating passage (30) communicate with each other.

In the heat treatment roll (1) having the above structure, a medium such as hot oil or cooling water is passed through the rotary joint (4).
It is fed into the through hole (40) through the medium feed port (48) in 6). The medium sent to the through hole (40) is
It flows through 0) and reaches the distribution space (36).

After that, it is distributed to the first induction passageway (32), passes through this and reaches the inside of the fitting portion (22), flows through the first heating passageway (28), and continues to the second roll shaft member ( In the second heating passage (30) in 20), flow through this,
It is guided to the guide passage (34). The medium is the first heating passage (28)
And when flowing through the second heating passage (30), the roll body (14)
Will be heated or cooled from the medium.

The medium that has passed through the second guiding passageway (34) is collected in the gathering space (38). The medium which has reached the gathering space (38) enters the return passageway (44) and flows therein.
The medium that has flowed through the return passageway (44) to the outer end portion (42) is
The flow direction is changed by 180 degrees, and it enters into the transport pipe (62), flows through it into the medium space (10), and is discharged from the medium discharge port (50) through the discharge pipe (52). It

As described above, in the heat treatment roll (1) of the present invention described above, the heating or cooling action on the roll body (14) is made uniform, and the medium fed inside the second roll on the drive side is used. By guiding the heat treatment roll (1) to the roll shaft member (20), the left and right bearings (12) supporting the heat treatment roll (1) have substantially the same effect. As a result, the problem that the heat treatment roll (1) is inclined with respect to the counter roll (R) does not occur.

Further, by providing the passage through which the medium flows, the medium does not stay inside the heat treatment roll (1).

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a heat treatment roll showing an embodiment of the present invention.

FIG. 2 is an enlarged view of a second roll shaft member in the previous figure.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a perspective view showing a correlation between a first roll shaft member, a second roll shaft member, and a seal member.

FIG. 5 is a cross-sectional view of a conventional heat treatment roll.

[Explanation of symbols]

 1 ... Heat treatment roll 10 ... Medium space 14 ... Roll body 16 ... Roll work surface 18 ... First roll shaft member 20 ... Second roll shaft member 28 ... First heating passage 30 ... Second Heating passage 32 ...... First induction passage 34 ...... Second induction passage 40 ...... Through hole 42 ...... Around the outer end 44 ...... Return passage 46 ...... Rotary joint 48 ...... Medium inlet 50 ...... Medium discharge Outlet 52 …… Discharge pipe 62 …… Transport pipe

Claims (1)

[Claims] 1. A first roll comprising a hollow cylindrical roll main body having a roll work surface formed on its outer periphery, and a rotary joint fitted to one opening of the roll main body and having a medium inlet. A roll shaft member; and a second roll shaft member fitted into the other opening of the roll body and connected to a driving means such as a motor .
Attached to the roll shaft member and the second roll shaft member, respectively.
A heat treatment roll rotatably supported by a bearing , heated or cooled by a heating medium or a cooling medium fed inside from the medium feeding port, and then discharged from the medium discharging port after the thermal work. At
With flowing the medium into the interior of the second roll shaft member, Ri Na by passage provided for passing along the roll working surface, said first roll shaft member, said medium inlet port and the communicating
A through hole extending in the axial direction together with the passing, the roll operation
A plurality of first heating passages extending in the axial direction along the work surface,
A first guide for connecting the first heating passage and the through hole.
And a conductive path, said second roll shaft member, the roll
A plurality of second heating passages extending in the axial direction along the work surface
From the position where the bearing on the side of the second roll shaft member exists
Furthermore, near the outer end of the second roll shaft member, which is the outer position.
A return passage extending axially inward from the side, and the second heating passage.
Second guide passage extending from the road to the inner end of the return passage
And the medium reaching near the outer end of the second roll shaft member.
The body was guided to the medium space formed inside the roll body.
And a second heating pipe for transporting the first heating passage and the second heating passage.
The medium is provided so that it can communicate with the passage.
The discharge pad that allows communication between the work space and the medium outlet.
A heat treatment roll characterized by being provided with an ip.