JPH0335145Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The invention consists of a roll body made by superimposing disc-shaped composite roll constituent materials in a crimped manner, and a shaft body having a suction (blowing) function. There is a sponge suction (blow) roll device, and this type of suction roll device can be used for, for example, film, glass, plate-like objects such as rubber products, metals, plate materials, textile products, etc.
It is used for wiping or removing water, processing liquid, etc. attached to or contained on the surface of printed circuit boards for keyboards, etc.

"Prior Art" Conventionally, there are various structures of suction rolls having a suction (same as blowing) function.
Among them, the applicant has proposed a patent application filed in 1982 as having a simple mechanism and excellent suction effect.
There is a non-woven fabric roll device for processing glass, plate materials, etc. No. 179436. This invention has been widely used and well-received, for example, for the suction removal of water, processing liquids, etc. in the field of steel cold rolling processes, and for the suction removal of water, processing liquids, etc. in dehydration and drying processes in other textile processing fields. I am making money.

Other similar technical documents include, for example, Japanese Patent Application Laid-Open No. 51-34916 on a water absorption device for washing plate glass. The purpose is to cleanly remove moisture and impurities from the entire sheet glass, including both ends, by pressing it into a concave state. There is also a moisture adsorption roll disclosed in JP-A-59-119016, the gist of which is that a hollow cylindrical core roll is made with small holes.
The nonwoven fabric is pressed onto this core roll, and the core roll is equipped with a pump.
The purpose is to remove water by suction in a vacuum or reduced pressure state. In addition, as for other rolls (rotating brushes) using rubber-like elastic bodies, Jikosho
No. 38-10921, a rotating brush for cleaning conveyor belts was devised, and as a liquid absorbing roll, Jitsukasho
No. 57-52838 has proposed a water injection brush roll for polishing metal plates.

``Problems to be solved by the invention'' In addition, conventional nonwoven fabric roll devices with a roll body made of a single material require a certain amount of pressure on the roll body in order for the suction mechanism to work effectively on the roll body. It is required to maintain the occlusive property (negative pressure resistance) of the

On the other hand, when clogging occurs in the process of using the roll body, and when removing the clogging, the easiest way to remove the clogging is to form a There is a method of backwashing through a hollow part, a large number of through holes, etc. In the case of this backwashing method, it is essential that the so-called roll body, in which backwash water, backwash air, etc. reach the surface of the roll body, maintains an appropriate negative pressure resistance.

It is extremely difficult to provide these conditions to a conventional roll body with a so-called continuous porous structure composed of a single material, in other words, the roll body composed of a fixed shape or form of porosity. The current situation is that

In addition, it is advantageous from an economic perspective to reduce the cost of the roll device by using materials that can be kept in cost for the parts on the inner layer side of the roll body that do not pose much of a material problem. The current situation is that these issues have not been fully resolved.

Furthermore, the nonwoven fabric roll device according to the present applicant's invention has a structure in which nonwoven fabrics are stacked in a crimped manner, but in this case as well, the porous structure (voids) of the nonwoven fabric is basically constant. Similarly to the above, the dimensions may become constant, or a sufficient gap may not be formed, and in the end, the suction function and backwashing effect may not be sufficiently exerted as described above.

Also, the degree of crimping or clamping is limited depending on the material. In many cases, the hardness of the roll and the size of the void formed in the roll body are narrowed down to a relatively narrow range, and as a result, there is a risk that the field of use will be narrowed.

In addition, even in the above-mentioned technical documents, the invention of Utility Model Publication No. 38-10921 or No. 57-52838 is completely different from the present invention in terms of the structure of the roll body and the material of the roll body.

"Means for Solving the Problems" In view of the above, the present invention is to form a composite roll component in the form of a disc by laminating dissimilar materials in the circumferential direction, and to attach this disc-shaped composite roll component to the shaft body. (This negative pressure resistance is generated by pressing and overlapping the composite roll constituent materials through press forming as described later.) . In addition, the present invention provides a suction roll device made of a disk-formed composite roll component with a structure that reduces the cost of materials and the cost of the suction roll device. A cylindrical shaft body having a bearing portion at both ends with a large number of through holes on the circumferential surface of the body that communicate with a cavity opened in the axial direction of the shaft body, and a through hole for the bearing portion in the opening of the shaft body. and a pump as a blowing or suction means that is installed via a hose, which is in a non-pressure bonded state, and whose surface layer is an ultrafine fiber entangled body with an ultrafine fiber nonwoven fabric material and a urethane elastic material, and whose inner layer side is an entangled body of ultrafine fibers. is a composite roll material made of an elastic porous body made of a porous material such as woven fabric, which is integrated in the circumferential direction, and the composite roll component material in a non-pressure bonded state is fixed to the shaft body on both sides. A large number of disc-shaped sponge roll materials are inserted through plates and pressed together in the axial direction of the shaft body, so that a large number of disc-shaped sponge roll materials are superimposed in a crimped manner to form a predetermined shape and size. This structure is characterized by comprising a roll body having continuous pores and having a predetermined hardness, and in which fluids such as water and processing liquid are blown out or sucked into the roll body via the pump.

"Function" Next, to explain the outline of the function of the present invention, a composite roll X (hereinafter simply referred to as (composite role X)
and a composite roll Y having the same structure (hereinafter simply referred to as composite roll Y) or another roll without a suction mechanism (not shown), the object to be processed, such as a plate-like metal, a textile product, etc. Water, processing liquid, etc. (hereinafter simply referred to as water) contained in or attached to the object to be processed is sucked by nipping a printed circuit board, etc. In this case, at least one of the composite rolls X and/or the composite roll Water is sucked in from the surface of the roll Y. In this way, the roll main body 12, which is constructed by compressing and superimposing the disc-like composite roll components 8 in which water is not compressed, has voids randomly varying in size in the circumferential direction. These voids of different diameters exhibit a capillary effect (continuous suction effect, the same applies hereinafter), giving the composite roll X or Y of the present invention excellent water absorption power. In addition, the roll body 12 is constructed by overlapping the disc-shaped composite roll members 8 in an uncompressed state, and voids having different diameters in the circumferential direction of the composite roll X or Y are formed, thereby achieving the above-mentioned capillary effect. is maximized. Furthermore, composite role
Or, the water sucked in from the surface of Y is sucked into the cavity 3 through the numerous through holes 4 provided on the peripheral surface of the main body 1 by the action of the suction mechanism, and is then discharged to the outside. The water absorption power of the composite roll X or Y during operation is constantly maintained and managed at the highest level.

In addition, since the roll body 12 is composed of a large number of non-compressed disk-shaped composite roll components 8 that are pressed together with substantially uniform pressure, the ultrafine fiber entangled body 7 and the elastic porous body The elasticity of No. 8 is maintained as it is. Therefore, the roll main body 12 is given the elasticity possessed by the disc-shaped composite roll component 8, so that it has excellent elastic properties, and the area compressed by the pressure during the nip is subsequently removed from the nip. Since it is immediately released when the pressure is released and maintains its current form, it has the effect of restoring water absorption power, and can be used during suction work during high-speed rotation, or when there is a relatively large amount of water impregnated into the processed material. However, a prompt response can be expected. Furthermore, even when used for edges such as steel materials,
It is believed that the elasticity of the composite rolls X or Y will minimize the wear and tear, and as will be seen later, the damage will likely be limited to only a limited area.

"Embodiment" An embodiment of the present invention will be specifically described below based on the drawings.

In the figure, reference numeral 1 denotes a cylindrical shaft body having bearing parts 2, 2a at both ends.A hollow part 3 extending in the axial direction is opened in this shaft main body 1, and the hollow part 3 is formed on the peripheral surface of the shaft main body 1. A large number of through holes 4 are opened which communicate with each other. Further, at least one of the shaft bodies 1 has an opening 5
The opening 5 communicates with the cavity 3 and also communicates with a through hole 6 formed in one of the bearings 2 in the axial direction. And this opening 5
is connected to a blowing and suction means (not shown) such as a pump or cylinder through a through hole 6 of one of the bearings 2 and a hose (not shown).

In the figure, 7 is an ultrafine fiber entangled body made of an ultrafine fiber nonwoven fabric material and a urethane elastic body that constitutes the surface layer side of the disk-shaped composite roll component 8, and 9 is a nonwoven fabric that constitutes the inner layer side of the composite roll component 8. As shown in FIGS. 3 and 4, the ultrafine fiber entangled body 7 and the elastic porous body 9 have a joint 10 in an uneven or mountain shape. ,
The joint part 10 is made into a serrated shape etc. and the joint part 10 is sewn by a sewing machine 11.
When they are integrated, a composite roll component 8 is formed which is donut-shaped and disk-shaped when viewed from the side, and the dimensions of the hollow portion are different between the surface layer side and the inner layer side. A composite roll component 8 having composite characteristics with different elasticities is formed.

Then, this disk-shaped composite roll component 8
are sequentially inserted into the shaft body 1 through the side plate 13 fixed to one end of the shaft body 1, and when a predetermined width is reached, they are crimped or clamped by press molding, and the The entire disc-shaped composite roll component 8 in the compressed state is maintained at approximately a predetermined volumetric compression rate. Next, the other side plate 14 is fixed to the other end to fix the disk-shaped composite roll component 8. After that, the roll body 12 is constructed by polishing the outer circumferential surface of the roll body 12.
has a predetermined size and a predetermined hardness, and is formed of a layer portion consisting of the ultrafine fiber entangled body 7 constituting the surface layer side and a layer portion consisting of the elastic porous body 9 constituting the inner layer side. The dimensions of the voids are different; specifically, the microfiber entangled layer is formed in a small void, and the elastic porous material layer is formed in a large void. Therefore, the uniformity of the hardness of the roll body 12, the non-uniformity of the dimensions of the voids in the circumferential direction, and the continuity (in the circumferential direction of the roll) are ensured. The main body 12 is manufactured.

As shown in FIG. 2, it is also possible to adopt a structure in which an auxiliary chamber 16 is provided, and in this example, a plurality of spacers 15 are preferably provided on the outer peripheral surface of the shaft body 1 at equal intervals in the axial direction. The roll main body 12 is provided on this pacer 15. As a result, a plurality of long auxiliary chambers 16 extending in the axial direction are provided on the outer peripheral surface of the shaft body 1, so that the auxiliary chambers 1
It has a structure in which 6 is a fluid storage chamber.

The composite roll components 8 are independent from each other in the axial direction, and specifically, as shown in FIG.
is composed of As a result, each composite roll component 8 is independent, so even if external pressure is applied to the roll body 12, as shown in FIG.
As shown in the figure, an escape allowance A is generated due to the elasticity of the composite roll component 8 on the disk and the above-mentioned independence, so it is thought that the damage will be limited to only a partial area, and the conventional suction roll is It is possible to prevent damage caused by cave-ins that would occur in the event of damage to the building.

Next, to explain the function of the present invention, it is mainly the seventh
To explain based on FIGS. 9 to 9, a composite roll X having a roll body 12 in which disc-shaped composite roll components 8 each having a suction mechanism are superimposed at a predetermined volumetric compression ratio, and a composite roll having the same structure The object to be treated is nipped between the roll Y or the composite roll It sucks liquid etc.

In this case, water is sucked in from the surface of at least one of the composite rolls X and/or composite roll Y. Then, the water is sucked into the voids of different diameters formed by the layers of the roll body 12, which is made up of uncompressed disk-shaped composite roll members 8 stacked one on top of the other in a crimped manner. Since the area exhibits a capillary effect, water flows into the void area →
(or auxiliary chamber part 16 →) through hole 4 → cavity part 3 → opening 5
→It is sucked in through the through hole 6 and discharged to the outside using a pump or the like.

In this way, the composite roll X or Y of the present invention is provided with excellent elasticity, and the roll body 12 is constructed by superimposing the disc-shaped composite roll constituent members 8 in an uncompressed state. The above-mentioned extremely fine and substantially uniform continuous voids in the thickness direction of roll X or Y, and voids having different diameters due to the layered portions, are formed, and the above-mentioned capillary effect is maximized.

Furthermore, as mentioned above, composite rolls X and/or Y
The water sucked in from the surface of the shaft body 1 is sucked into the cavity 3 through a large number of through holes 4 provided on the outer peripheral surface of the shaft body 1 by the suction mechanism, and is then discharged to the outside. The sponging force of the composite roll X or Y is constantly maintained and managed at the highest level.

In addition, since the roll body is composed of a large number of non-compressed disc-shaped composite roll members 8 that are crimped together with substantially uniform pressure, the elasticity of the composite roll members 8 is maintained as is. has been done. Therefore, the roll main body 12 has excellent elastic properties due to the elasticity possessed by the disc-shaped composite roll component 8, and the area compressed by the pressure during the nip is then removed from the nip. When the pressure is released, it is immediately released and maintains its current form, so
Here, it has the effect of restoring water absorption power, and can be expected to respond quickly even when water absorption work is performed at high speed rotation or when a relatively large amount of water is impregnated into the object to be treated.

Furthermore, in the example, when water is blown out from the surface of the roll body 12, the water is blown out from the shaft body 1 through a pump or the like.
Through hole 6 → opening 5 → cavity 3 → through hole 4 → (or auxiliary chamber 16 →) → void → Overflowing or spouting from the surface of the roll body 12 constantly or intermittently to treat the object to be treated. It is something to do.

In addition, when the composite rolls X and Y of the suction roll device become clogged, and when the clogging is to be cleared through backwashing, the composite rolls XY of the present invention can be used for repair. As shown in FIG. 8, since voids of different diameters are formed, backwash water is transferred from the voids 3 of the shaft body 1 to the composite rolls X, Y.
When injected toward the surface of the material, the elastic porous material layer is formed in large voids, and the resistance due to this layer is extremely small and almost zero when it reaches the ultrafine fiber entangled material layer. . Therefore, resistance is first applied in the small voids provided in this ultrafine fiber entangled body 7, but since this ultrafine fiber entangled layer is thin as shown in the figure, the composite rolls X and Y The backwashing water that reaches the surface has sufficient cleaning power, and a sufficient backwashing effect can be expected.

However, in the conventional monolithic suction roll, as shown in Fig. 9, since the entire roll body is formed of the same cavity, radiation is emitted from the cavity of the shaft body toward the surface of the roll body. The backwash water is initially resisted by the roll layer. Therefore, the amount of backwash water that reaches the surface of the roll body is extremely small, and the cleaning power of this backwash water is extremely weak, so a sufficient backwash effect cannot be expected. .

It is also possible to form a large gap in the roll body of this conventional example so that the above-mentioned backwashing effect can be expected, but with such a configuration, water from the roll body due to the water absorption function and suction mechanism of the roll body Possible problems include insufficient suction and the need for other incidental equipment.

"Effects of the Invention" Since the present invention has the configuration described in detail above, the roll body with negative pressure resistance, which is constructed by superimposing the composite roll constituent materials of the uncompressed disk in a crimped manner, has the following features: This has the effect of randomly forming voids with different dimensions in the circumferential direction, and these voids with different diameters exhibit a capillary effect, giving the suction roll device of the present invention excellent water absorption power. .

In addition, the roll body is constructed by overlapping disc-shaped composite roll components in an uncompressed state, and voids of different diameters are formed in the circumferential direction of the composite roll, maximizing the capillary effect described above. be done.

Furthermore, the water sucked in from the surface of the composite roll is sucked into the cavity through a large number of holes provided on the peripheral surface of the shaft body by the action of the suction mechanism, and is then discharged to the outside. The water absorption power of the composite roll is constantly maintained and managed at its best.

In addition, in the present invention, since the roll main body is composed of a large number of uncompressed disc-shaped composite roll components that are crimped together with approximately uniform pressure, the roll body is made up of ultrafine fiber entangled bodies and elastic porous materials. The elasticity of the mass remains unchanged.

Therefore, by imparting the elasticity possessed by the disc-shaped composite roll constituent material to the roll body, it has excellent elastic properties, and the area compressed by the pressure at the time of the nip is subsequently It has the effect of immediately releasing and maintaining its current form when opened, and this has the effect of immediately recovering the water absorbing power. Even in cases where there are relatively many cases, prompt responses can be expected.

In addition, when manufacturing a roll body using an integrally molded composite roll, it is extremely effective in avoiding the difficulty of uniformly forming extremely fine and small-diameter voids in the ultrafine fiber entangled layer. be.

Furthermore, since the present invention has a structure in which a large number of disk-shaped composite roll materials are stacked and then volumetrically compressed, surface damage to the roll body can be reduced (through the clearance), and the degree of damage is also light. In particular, the composite roll has the effect of improving the uniformity of hardness and uniformity of the continuous voids, expanding the hardness range, and making it possible to manufacture the continuous voids with a wide range of diameters.

In addition, in the present invention, when clogging of the roll body of the suction roll device is to be resolved through backwashing, the present invention uses the backwashing water because voids of different diameters are formed as described above. reaches the surface of the raw body, and this backwash water has sufficient cleaning power, so a sufficient backwashing effect can be expected.

In particular, in the present invention, the composite roll constituent material constituting the roll body is made of an ultrafine fiber entangled body consisting of an ultrafine fiber nonwoven fabric material and a urethane elastic material on the surface layer side, and a nonwoven fabric, etc. on the inner layer side. It has a structure in which an elastic porous body made of a porous material is integrated in the circumferential direction, so it has a practical effect of reducing the cost of materials and the cost of the suction roll device. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a partially omitted sectional view, and FIG. 2 is a partially omitted sectional view of another example, specifically, a configuration in which a subchamber is provided. 3
The figure is an enlarged sectional view of the roll body, FIG. 4 is an enlarged sectional view of the main part showing another example of the roll body, and FIG.
The figure is an enlarged cross-sectional view showing the relationship between the ultrafine fiber entangled body and the elastic porous body, Figure 6 is a view explaining the clearance of the roll body, Figure 7 is a cross-sectional view showing an example of the usage state, and Figure 8 9 is a diagram illustrating a backwashing state, and FIG. 9 is a diagram illustrating a backwashing state of a conventional roll body. 1: Shaft body, 2, 2a: Bearing part, 3: Cavity part,
4: Through hole, 5: Opening, 6: Through hole, 7: Ultrafine fiber entangled body, 8: Composite roll constituent material, 9: Elastic porous body, 10: Joint part, 12: Roll body, 13,1
4: Side plate, 15: Spacer, 16: Sub-chamber, 2
0: between, X, Y: composite roll.

Claims (1)

[Scope of Claim for Utility Model Registration] A cylindrical shaft having a hollow part opened in the axial direction of its main body with one end open, a number of through holes communicating with this hollow part formed on the circumferential surface of the main body, and bearing parts at both ends. A main body and a pump as a blowing or suction means that is attached to the opening of the shaft main body through a through hole of a bearing part and a hose are in a non-pressure bonded state,
The surface layer side is made of a microfiber composite made of a microfiber nonwoven fabric material and a urethane elastic material, and the interior side is an elastic porous material made of a porous material such as nonwoven fabric, so that they are integrated in the circumferential direction. Inserting a large number of the composite roll constituent material and the non-pressure bonded composite roll constituent material through both side plates fixed to the shaft body, and crimping the shaft body in the axial direction, A large number of disk-shaped sponge roll materials are stacked together in a crimped manner to form a roll body having a predetermined shape, continuous pores of a predetermined size, and a predetermined hardness. A disc-shaped sponge suction roll device that blows out or sucks fluids such as water and processing liquid from the roll body through the roll body. A suction roll made of a disc-shaped composite roll constituent material according to claim 1, which is registered as a utility model and is configured to integrate the joining portion of the ultrafine fiber entangled body and the elastic porous body by sewing with a sewing machine. Device.