JPH0478758B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a papermaking suction roll for cleaning suction holes formed in the roll shell of a papermaking suction roll when the holes become clogged. This invention relates to a washing roll cleaning device.

[Conventional technology]

In the papermaking process, the water in the wet paper is squeezed out from the roll shells of suction couch rolls in the wire part, suction pick-up rolls in the press part, suction press rolls, etc. (hereinafter simply referred to as papermaking suction rolls). A large number of holes (hereinafter referred to as suction holes, number of holes: 90,000)
~380,000 holes (diameter: 3 to 7 mmφ) are drilled over almost the entire circumference and entire length. In the papermaking process, water is squeezed out of the wet paper using such a suction roll for papermaking, but in addition to the moisture in the wet paper that should be squeezed out, the composition of the wet paper is Since the raw materials pulp, filler, pitch, etc. are also sucked in at the same time, these pulp, fillers, pitch, etc. adhere to the suction holes and cause clogging, and the suction holes remain clogged in this way. If a suction roll is used for paper making, it becomes impossible to efficiently squeeze out the moisture from the wet paper, which may cause paper breakage during the pressing stage, so in such cases, clean the suction holes. There is a need.

Conventionally, in order to clean the suction holes of a suction roll for paper making, one end of a tube is fixed to a cleaning liquid supply source capable of supplying cleaning liquid at a predetermined pressure, and the other end of the tube is bored in the roll shell of the suction roll for paper making. A cleaning device has been used which includes a cleaning gun that sprays cleaning liquid toward the suction hole in the cleaning device. In other words, in such a conventional cleaning device, a clogged papermaking suction roll is removed from the papermaking line, placed in a predetermined position, a cleaning gun is held by the operator, and the cleaning fluid injection port of the cleaning gun is inserted into the suction hole. A cleaning liquid supplied at high pressure from a cleaning liquid supply source is jetted toward the suction hole, and the water pressure of the cleaning liquid blows away the deposits adhering to the suction holes.

[Problem to be solved by the invention]

However, when cleaning the suction holes of a suction roll for paper making using such a conventional cleaning device, many holes are formed in the roll shell of the suction roll for paper making toward its axis. The direction in which the cleaning liquid is sprayed for all the suction holes must match the direction in which the suction holes are drilled, that is, the cleaning liquid must always be sprayed in the normal direction to the roll shell surface of the papermaking suction roll. That is extremely difficult. For this reason, the condition of the suction holes in paper-making suction rolls is uneven after cleaning, and some paper-making suction rolls have roll shells that have a total length of about 6 m, so workers must clean them while moving. In addition to the drawback that conventional cleaning devices require a very long time, the worker who holds the cleaning gun and cleans the suction holes of the suction roll for papermaking must hold the cleaning gun for a long time until the work is finished. This had the disadvantage of being forced to do harsh labor where the workers had to do the same, and also had the disadvantage of not only getting soaked with cleaning fluid and working on wet scaffolding, which was slippery and dangerous. be.

The present invention provides a suction roll cleaning device for paper making, in which the suction holes of the suction roll for paper making are in a good condition after cleaning without spotting, and at the same time, the work can be carried out safely with almost no burden on the operator. That is the issue.

[Means to solve the problem]

As a result of intensive research in order to solve the above problems, the present inventor has found that the suction holes of a suction roll for paper making can be made in a good condition after cleaning without any unevenness, and that the burden on the operator can be reduced. focused on the fact that the direction in which the suction holes are drilled for all the suction holes can be made to match the direction in which the cleaning liquid is sprayed, and that the operator can work in a position where he is not exposed to the cleaning liquid. , a nozzle that injects a cleaning liquid toward the suction holes of a suction roll for paper making is a nozzle that injects a cleaning liquid in a direction perpendicular to the axis of the roll shell of the suction roll for paper making while rotating at the axial center position of the roll shell of the suction roll for paper making. Moreover, the present invention was completed by discovering that it is sufficient to make the nozzle movable in the axial direction of the roll shell.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The papermaking suction roll cleaning device according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a front view showing one embodiment of a suction roll cleaning device for paper making according to the present invention, and FIG.
3 is a cross-sectional explanatory view schematically showing the structure of the washing machine of the papermaking suction roll cleaning device according to the present invention in FIG. 1, and FIG. An explanatory left side view showing a state in which two branched tubular bodies each having a nozzle at one end are rotatably installed in a shower roll cleaning device. FIG. 5 is a cross-sectional view taken along line A-A in FIG. 4. An explanatory view, FIG. 6 is a left side explanatory view showing a state in which four branch tubular bodies each having a nozzle at one end are fixed in the papermaking suction roll cleaning device according to the present invention, and FIG. B-B in
FIG. 8 is a cross-sectional diagram schematically showing a line diagram, and FIG. 8 is a left side view showing a papermaking suction roll cleaning device according to the present invention in which two branch tubular bodies each having a nozzle at both ends are rotatably installed. FIG. 9 is a schematic cross-sectional view taken along the line CC in FIG. 8, and FIG. 10 is a perspective view showing the support member in FIG. 1.

In the drawing, 1 is a washing machine, 2 is a housing that forms the body of the washing machine 1 and has a washing liquid inlet 2a at one end, and 3 is a housing that is rotatably mounted inside the housing 2. 2 inlet 2
4 is the inlet port 2a of the housing 2;
This is a hollow shaft that is rotatably mounted through the blocking material on the opposite side, and this hollow shaft 4 is connected to an internal gear 5b that meshes with a spline 5a that is fixed to the center of rotation of the runner 3. It is rotated by a gear train 5 including. Reference numeral 6 denotes a branch tubular body that branches the cleaning liquid that has flowed into the hollow shaft 4 in a direction perpendicular to the axis of the hollow shaft 4. is installed on. This branched tubular body 6 is equipped with a nozzle 7 at its tip, preferably a plurality of nozzles 7 for efficiently cleaning the suction holes of a papermaking suction roll. A branch tubular body 6 having two branch tubular bodies 6 and forming a straight line with the hollow shaft 4 in between, and a branch tubular body 6 having a nozzle 7 at one end.
The adjacent branch tubular bodies 6 are placed at equal angles about the axis of the hollow shaft 4, i.e.
A branch tubular body 6, which is radial at every 90 degrees or has nozzles 7 at both ends and a hole bored in the center, penetrates the hollow shaft 4 and connects the hollow part of the hollow shaft 4 to the A branch tubular body 6 having a nozzle 7 at both ends and a hole in the center penetrates the hollow shaft 4 and is inserted into the hollow shaft 4. A device is shown in which the part and the hole are aligned and do not intersect with each other. Further, the branch tubular body 6 may be attached to the hollow shaft 4 in either a fixed state or a freely rotatable state, but the bevel gears 8 to be engaged with the housing 2 and the branch tubular body 6 are respectively fixed. When the branch tubular body 6 is rotated about the axis of the branch tubular body 6, the branch tubular body 6 must be rotatably attached to the hollow shaft 4.

9 is a holder fixed to the housing 2, 1
0 is a roller inscribed in the papermaking suction roll to be cleaned, and 11 is a roller support on which the roller 10 is pivoted. The holder 9 may have any shape as long as it can be fitted with the roller support 11; for example, even if it is a columnar body or a plate-like body that is long in the direction perpendicular to the axis of the housing 2, the housing 2 is fitted in the center thereof. It may be a disk-shaped body provided with holes, but in order to hold the washing machine 1 in a stable state within the cylindrical roll shell 19 of the suction roll for paper making, there may be a disc-shaped body provided with holes. The rollers 10 that are in contact with each other are arranged at approximately equal angles with the axis of the housing 2, and it is preferable that there are at least three rollers. In the case of a columnar body or a plate-shaped body that is long in the right angle direction, it is desirable that the holders 9 are fixed to the housing 2 so that the roller supports 11 are arranged at approximately equal angles, and the shape of the holders 9 is In the case of a disk-shaped body, it is desirable that the roller supports 11 be arranged at approximately equal angle intervals. Reference numeral 12 denotes a shock absorber provided on the roller support 11 to alleviate shocks that may be applied to the roller 10. This shock absorber 12 is attached to the holder 9.
When an even number of roller supports 11 are provided, one roller support 11 and one of the remaining roller supports 11 form a straight line across the axis of the housing 2. Therefore, it suffices if the roller support 11 is provided on at least one of the roller supports 11 that is linear with the axis of the housing 2 interposed therebetween. Reference numeral 13 denotes a position adjustment tool for moving the roller support 11 in a direction perpendicular to the axis of the housing 2 in order to define the position of the roller 10 in accordance with the inner diameter of the roll shell 19 of the papermaking suction roll, In the embodiment shown in FIG. 1, an adjusting bolt 13c is fixed to a holder 9, and a fixing member 1 into which the adjusting bolt 13c is inserted.
3a is fixed to the roller support 11, and has a mechanism for tightening and fixing the fixing member 13a from both sides at a predetermined position with a fixing nut 13b screwed into an adjusting bolt 13c. Further, it is preferable that the holder 9 is provided with a scale indicating the position of the roller support 11. 14 is a cleaning liquid supply source that supplies cleaning liquid; 15 is a cleaning liquid supply source 14;
The pressure hose 15 is a pressure-resistant hose that is supplied with cleaning liquid from the cleaning liquid supply source 14, and has flexibility so that it can withstand the pressure of the cleaning liquid supplied from the cleaning liquid supply source 14 and can accommodate the movement of the cleaning machine 1. Any pressure resistant hose 15 may be used. 16 has one end connected to the inlet 2a of the washer 1, and the other end connected to the pressure hose 15.
The steel pipe 16 has a length that is at least longer than the entire length of the roll shell 19. 17 is the axis of the roll shell 19 and the steel pipe 1
This support member 17 supports the steel pipe 16 so as to be slidable in the axial direction in a state where the axes of the steel pipe 16 and the roll shell 19 coincide with each other.
A support roller is shown which is rotatably mounted on a support stand supporting the steel pipe 16 and has groove-shaped recesses formed in the peripheral edges on both sides to support the steel pipe 16. 18
is an automatic feeder which is fixed to the steel pipe 16 and automatically moves the steel pipe 16 in its axial direction, and this automatic feeder 18 controls the rotation of a motor 18a via a pulley 18b as shown in FIG. By moving the chain 18d engaged with the sprocket 18c by transmitting the information to the sprocket 18c, the steel pipe fixing base 1 engaged with the chain 18d is moved.
8e is the rail 1 laid in the axial direction of the steel pipe 16
8f, and various automatic feeders such as a mechanism using a worm gear instead of the pulley 18b can be employed in this mechanism.

[Effect]

When cleaning the suction holes of the roll shell 19 of the papermaking suction roll using the papermaking suction roll cleaning device of the present invention having the above structure, the papermaking suction roll is removed from the papermaking line, and the papermaking suction roll is removed from the papermaking line. After opening at least one end of the suction roll for paper making, it is placed on a pedestal or the like. In the case of a suction roll for paper making, in which a rubber material is bonded to the outer surface of the roll shell 19, the roll is opened as shown in FIG. It is preferable to receive it on the inner surface of the shell 19. After that, the roller 10 is inscribed in the roll shell 19, and the position adjustment tool 1
3 is provided on the holder 9, the axis of the housing 2 of the papermaking suction roll cleaning device and the axis of the roll shell 19 can be aligned even for papermaking suction rolls whose roll shells 19 have different inner diameters. It can be adjusted to suit your needs.

Next, a pressure hose 15 is connected from the cleaning liquid supply source 14.
When the cleaning liquid is supplied to the inlet 2a provided in the housing 2 of the cleaning machine 1 through the steel pipe 16,
The runner 3 mounted on the inlet 2a side within the housing 2 is rotated. Since this runner 3 is rotated at high speed, the spline 5 fixed to the center of rotation of the runner 3
The hollow shaft 4 is rotated at a desired speed by the gear train 5 including the internal gear 5b meshing with the hollow shaft 4. The cleaning liquid that has rotated the runner 3 passes through the housing 2 and enters the hollow shaft 4 from the hole in the hollow shaft 4.
The liquid flows into the hollow of the branch tubular body 6 and is sprayed from the nozzle 7 provided at the tip of the branch tubular body 6 toward the suction hole. Therefore, the branch tubular body 6 with the nozzle 7 at its tip is centered on the axis of the hollow shaft 4 which is aligned with the axis of the housing 2, with the injection port of the nozzle 7 facing the inner surface of the roll shell 19. It is rotated around the axis of the roll shell 19. At this time, since the axial center of the housing 2 and the axial center of the hollow shaft 4 are aligned and the branch tubular body 6 is mounted perpendicularly to the axial center of the hollow shaft 4, the roll shell 19 is always aligned. The cleaning liquid can be injected in the normal direction to the inner surface. At this time, it is preferable if a plurality of nozzles 7 are provided at the tip of the branch tubular body 6, since the cleaning liquid can be simultaneously injected in the direction of the number of nozzles 7.
Furthermore, when the housing 2 and the branch tubular body 6 are provided with bevel gears 8 that mesh with each other,
This bevel gear 8 can rotate the nozzle 7 provided at the tip of the branch tubular body 6 around the axis of the branch tubular body 6 by the rotation of the hollow shaft 4, so that the nozzle 7 can be injected from the injection port of the nozzle 7. It is possible to prevent the cleaning liquid from scattering and to perform cleaning more effectively. Further, when the roller support 11 is provided with a shock absorber 12, shocks that may occur between the rollers 10 and the inner surface of the roll shell 19, that is, the cleaning machine 1 is moved in the axial direction of the roll shell 19. This reduces the shock caused by the washing, the shock caused by the cleaning liquid being sprayed from the injection port of the nozzle 7, and the unexpected shock. Furthermore, if the support member 17 that supports the steel pipe 16 in a slidable state is provided, the axis of the steel pipe 16 and the axis of the roll shell 19 can be reliably aligned when the steel pipe 16 is supported. The axial direction of the unstable housing 2, in which the roller 10 disposed on the holder 9 is inscribed in the roll shell 19, can always be aligned with the axis of the roll shell 19. That is, the injection port of the nozzle 7 provided in the branched tubular body 6 can be oriented accurately in the normal direction to the inner surface of the roll shell 19. Furthermore, if an automatic feeder 18 is provided, the cleaning machine 1 can be fed in the axial direction of the roll shell 19 at a constant speed.

〔Effect of the invention〕

As described in detail above, the papermaking suction roll cleaning device according to the present invention has various advantages as listed below, and makes a very large contribution to the field of papermaking.

The suction roll cleaning device for papermaking can be easily installed in the roll shell simply by inscribing the roller in the roll shell. Furthermore, if a position adjustment tool is provided, it can be easily installed on papermaking suction rolls having different inner diameters.

Since the direction in which the suction holes of the papermaking suction roll are always aligned with the direction in which the cleaning liquid is sprayed from the nozzle, the cleaning efficiency is good, and the suction holes are formed easily after cleaning. It is in beautiful condition with no spots. Furthermore, if a support member is provided, the axis of the steel pipe and the axis of the roll shell can be aligned more reliably, so the nozzle injection port can always be oriented normal to the inner surface of the roll shell. can be directed to.

Since the nozzle is rotated around the axis of the hollow shaft, all the suction holes formed around the entire circumference of the roll shell of the papermaking suction roll can be evenly cleaned. Further, since the roll is mounted on the roll so as to be movable in the axial direction of the roll shell, the suction holes formed over the entire length of the roll shell can be cleaned. In other words, all the suction holes formed over the entire length of the roll shell can be equally cleaned.

When a shock absorber is provided, the impact on the inner surface of the roll shell is alleviated, so that the inner surface of the roll shell can be prevented from being damaged by the impact.

The cleaning efficiency is good for all the suction holes that are drilled along the entire circumference of the roll shell of papermaking suction rolls, so the cleaning time is shorter than when cleaning the suction holes using conventional cleaning equipment. can be shortened. Furthermore, if a plurality of nozzles are provided, cleaning of the suction holes can be completed in a shorter time.

The branch tubular body, which is rotated around the axis of the hollow shaft, is a mechanism that is automatically rotated by the cleaning liquid supplied into the washing machine, and no drive source such as a motor is used to rotate the branch tubular body. Therefore, it is highly economical.

While cleaning the suction holes of the papermaking suction roll, the operator does not need to approach the roll shell, so the operator does not get wet or slip, resulting in excellent safety. This not only shortens the cleaning time but also reduces the burden on the operator.

If an automatic feeder is provided, the cleaning machine can be fed at a constant speed, which greatly reduces the burden on the operator, and also allows the suction holes of the papermaking suction roll to be cleaned without spotting. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a front view showing one embodiment of a suction roll cleaning device for paper making according to the present invention, and FIG.
3 is a cross-sectional explanatory view schematically showing the structure of the washing machine of the papermaking suction roll cleaning device according to the present invention in FIG. 1, and FIG. An explanatory left side view showing a state in which two branched tubular bodies each having a nozzle at one end are rotatably installed in a shower roll cleaning device. FIG. 5 is a cross-sectional view taken along line A-A in FIG. 4. An explanatory view, FIG. 6 is a left side explanatory view showing a state in which four branch tubular bodies each having a nozzle at one end are fixed in the papermaking suction roll cleaning device according to the present invention, and FIG. B-B in
FIG. 8 is a cross-sectional diagram schematically showing a line diagram, and FIG. 8 is a left side view showing a papermaking suction roll cleaning device according to the present invention in which two branch tubular bodies each having a nozzle at both ends are rotatably installed. FIG. 9 is a schematic cross-sectional view taken along the line CC in FIG. 8, and FIG. 10 is a perspective view showing the support member in FIG. 1. In the drawings, 1...Washing machine, 2...Housing, 2
a...Inflow port, 3...Runner, 4...Hollow shaft, 5
... Gear train, 5a ... Spline, 5b ... Internal gear, 6 ... Branch tubular body, 7 ... Nozzle, 8 ... Bevel gear, 9 ... Holder, 10 ... Roller, 11
...Roller supporter, 12...Shock absorber, 13...Position adjuster, 13a...Fixing material, 1
3b...Fixing nut, 13c...Adjustment bolt, 14...Cleaning liquid supply source, 15...Pressure hose, 16...Steel pipe, 17...Support member, 18...
Automatic feeder, 18a...Motor, 18b...Pulley, 18c...Sprocket, 18d...Chain, 18...Fixed base, 18f...Rail, 19...
roll ciel.

Claims (1)

[Scope of Claims] 1. A runner 3 that is rotationally driven by the cleaning liquid supplied from the inlet 2a is attached to the inlet 2a side of the housing 2, which has a cleaning liquid inlet 2a at one end. A hollow shaft 4, which is rotatably attached to the housing 2 through the closing member on the opposite side of the inlet 2a, is connected to the runner 3 through a gear train 5 that decelerates the rotation of the runner 3. A branching tubular body 6 has a nozzle 7 at its tip, which branches the cleaning liquid flowing into the hollow shaft 4 in a direction perpendicular to the axis of the hollow shaft 4 after flowing in from the inlet 2a and driving the runner 3 to rotate. a washing machine 1 which is attached so as to be able to interlock with the hollow shaft 4; and a roller 10 which is inscribed in the roll shell 19 so as to be movable in the axial direction of the roll shell 19 of the papermaking suction roll to be cleaned. A holder 9 is fixed to the housing 2 and is pivoted to at least three roller supports 11 arranged at approximately equal angles; A suction roll cleaning device for papermaking, characterized in that it is comprised of steel pipes 16 whose other ends are respectively fixed to pressure-resistant hoses 15 through which cleaning liquid supplied from a cleaning liquid supply source 14 flows. 2. The papermaking suction roll cleaning device according to claim 1, wherein the branch tubular body 6 is attached to the hollow shaft 4 in a rotatable state about the axis of the branch tubular body 6. 3. Claim 1, which has two branch tubular bodies 6 each having a nozzle 7 at one end, and wherein the branch tubular bodies 6 form a straight line with the hollow shaft 4 in between and are attached to the hollow shaft 4. Or the papermaking suction roll cleaning device according to 2. 4. Paper making according to claim 3, wherein the branch tubular bodies 6 are linear with the hollow shaft 4 in between, and adjacent branch tubular bodies 6 are attached to the hollow shaft 4 at an angle of 90°. suction roll cleaning equipment. 5 The branch tubular body 6, which is equipped with nozzles 7 at both ends and has a hole bored in the center, passes through the hollow shaft 4, and the hollow part of the hollow shaft 4 is aligned with the hole to make the hollow shaft. 3. The papermaking suction roll cleaning device according to claim 1, wherein the suction roll cleaning device is attached to a paper making suction roll cleaning device. 6 It has two branch tubular bodies 6 which are equipped with nozzles 7 at both ends and have a hole in the center, and the branch tubular bodies 6 each penetrate the hollow shaft 4 and do not intersect with each other. The hollow shaft in the state 4
The papermaking suction roll cleaning device according to claim 1 or 2, wherein the suction roll cleaning device for papermaking is mounted on the hollow shaft (4) with the hollow portion thereof and the hole (4) aligned with each other. 7. The papermaking suction roll cleaning device according to claim 2, wherein the meshing bevel gears 8 are fixed to the housing 2 and the branch tubular body 6, respectively. 8 The position adjustment tool 13 for moving the roller 10 in a direction perpendicular to the axis of the housing 2 is connected to the holder 9.
The papermaking suction roll cleaning device according to any one of claims 1 to 7, which is mounted on a papermaking suction roll cleaning device. 9 Shock absorber 12 on roller support 11
The papermaking suction roll cleaning device according to any one of claims 1 to 8, further comprising a suction roll cleaning device for papermaking according to claim 1. 10. The papermaking suction according to claim 1, further comprising a support member 17 for supporting the steel pipe 16 such that the axis of the roll shell 19 and the axis of the steel pipe 16 are aligned with each other. Roll cleaning equipment.