JPH0694185B2 - Fluorocarbon rubber sponge laminate and honeycomb rotor device using the same - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fluororubber sponge laminate and a honeycomb rotor device using the same.

2. Description of the Related Art A honeycomb rotor device is used, for example, in an automobile painting process. The urethane resin paint is applied to the car body of the automobile at the coating booth, the gas containing the solvent from the coating booth is guided to the honeycomb rotor device, and the solvent is adsorbed and collected in the treatment area of the honeycomb rotor,
The clean air from which the solvent was collected and removed is returned to the paint booth. The honeycomb rotor provided in the honeycomb rotor device is driven to rotate, and the solvent is desorbed from the honeycomb rotor in the regeneration region adjacent to the processing region. Conventionally, in this honeycomb rotor device, silicon rubber that elastically contacts the honeycomb rotor is used as a sealing material for preventing the air in the processing area and the air in the regeneration area from being mixed.

Problems to be Solved by the Invention When such silicon rubber is used, fine particles of silicon rubber are generated in contact with a rotating honeycomb rotor,
The fine powder of the silicon rubber is mixed in the clean air from the honeycomb rotor device and returns to the coating booth again, and the fine powder adheres to the vehicle body to be coated. This silicone rubber has water repellency and oil repellency, and the paint such as urethane resin paint does not adhere cleanly to the vehicle body to which such fine powder of silicone rubber adheres, resulting in poor finish of painting.

An object of the present invention is to provide a fluororubber sponge laminate in which fine powder does not adversely affect coating, and a honeycomb rotor device using the fluororubber sponge laminate.

Means for Solving the Problems The present invention is a fluororubber sponge laminate, which has a structure in which a fluororesin sheet is joined to the surface of a fluororubber sponge sheet.

The present invention also relates to a honeycomb rotor in which a honeycomb rotor provided in a casing is rotated around the axis of the honeycomb rotor to form a treatment region and a regeneration region that are partitioned by a partition member outside the honeycomb rotor. In the apparatus, a sealing material is provided between the casing and the honeycomb rotor, or between the partition member and the honeycomb rotor, and the sealing material is provided on the surface of the fluororubber sponge sheet.
A honeycomb rotor device having a structure in which fluorine resin sheets are joined, and the fluorine resin sheets elastically contact the honeycomb rotor.

Action The fluororubber resin laminate according to the present invention has a structure in which the fluororesin sheet is joined to the surface of the fluororubber sponge sheet with, for example, an adhesive. Even if the fine powder of the fluororubber sponge sheet adheres to the vehicle body to be painted, for example, in the painting process of an automobile, it does not adversely affect the finish of the urethane resin paint or the like.
This also applies to the fine powder of the fluorine resin sheet.

Since the fluororubber sponge sheet has a relatively large coefficient of friction, the fluororesin sheet is bonded to the surface of the fluororubber sponge sheet, thereby reducing the friction coefficient.

In a honeycomb rotor device, such a fluororubber sponge laminated body is used as a sealing material, and this sealing material is provided between the casing and the honeycomb rotor, and the fluorine resin sheet of the sealing member is elastically attached to the rotated honeycomb rotor. It is configured to make contact with each other spontaneously. As a result, the honeycomb rotor can be driven with a small rotational power while the friction coefficient between the seal material and the honeycomb rotor is reduced, and the seal material and the honeycomb rotor can be prevented from wearing. The sealing material may be provided on a partitioning member for partitioning the processing area and the regeneration area so that the fluorine resin sheet of the sealing material elastically contacts the honeycomb rotor.

INDUSTRIAL APPLICABILITY The fluororubber sponge laminate of the present invention can be used not only as a seal material for a honeycomb rotor device but also as a seal material for other fluids such as gas, and also as a packing, gasket, valve body, etc. be able to.

Example FIG. 1 is a sectional view of a fluororubber sponge laminate 1 according to an example of the present invention. This laminated body 1 has a structure in which a fluorine resin sheet 4 is joined to the surface of a fluorine rubber sponge sheet 2 by an adhesive layer 3. The fluororubber sponge sheet 2 is a long product obtained by mixing a fluororubber with a foaming agent to foam it, and for example, continuously extruding and vulcanizing it. As the fluorine rubber, tetrafluoroerotin-hexafluoropropylene-vinylidene fluoride copolymer, vinylidene fluoride-hexafluoropropylene copolymer, tetrafluoroethylene-propylene copolymer, and tetrafluoroerotin-hexafluoropropylene- Examples include perfluoro (alkyl vinyl ether) copolymers. According to experiments conducted by the inventor of the present invention, the physical property values of the fluorocarbon rubber sponge sheet 2 are Japanese Industrial Standard JIS K630.
Based on 1, it has the values shown in Table 1.

The fluorocarbon resin sheet 4 is a homopolymer of theotrafluoroethylene, tetrafluoroethylene and other olefinic monomers such as hexafluoropropylene, perfluoroalkyl vinyl ether, ethylene, propylene,
Fluorine-containing polymers such as vinylidene fluoride copolymers, vinylidene fluoride homopolymers or copolymers with other olefinic monomers, and carbon, inorganic fine powder, heat resistance of these polymers Filler-containing fluorine-containing polymer that is uniformly filled with an organic polymer, especially the latter filler-containing fluorine-containing resin has significantly better adhesiveness to fluorine-containing rubber and abrasion resistance than non-filled ones. It is excellent and favorable. Examples of preferred materials include polytetrafluoroethylene and tetrafluoroethylene-hexafluoropropylene copolymer, carbon powder, glass fiber powder, carbon fiber powder, etc., in order to improve sliding, about 5 to 40%, preferably 10
It may be a mixture of about 30%.

The production of these fluorine resin material sheets is carried out by a conventionally known method. It is desirable that the surface of the sheet to be bonded to the fluororubber sponge be subjected to an easy adhesion treatment in advance by a method such as a sputtering etching treatment, an electric discharge treatment or an alkali liquefaction treatment prior to the lamination with the sponge.

The physical property values of the fluorine resin sheet 4 are as shown in Table 2 according to the experiments conducted by the present inventors. In this measurement, a sample piece having a thickness of 0.1 mm, a width of 100 mm, and a length of 50 m is used, and the measurement results are shown according to Japanese Industrial Standard JIS K6887.

The adhesive layer 3 for adhering the fluorocarbon rubber sponge sheet 2 and the fluorocarbon resin sheet 4 may be a cyanoacrylate-based instant adhesive, an epoxy-based adhesive, a polyimide-based adhesive, or a polyamide-imide-based adhesive, or Alternatively, a liquid obtained by dissolving fluorine rubber in an organic solvent may be used as an adhesive.

The thickness W1 of the fluorocarbon rubber sponge sheet 2 is 2 to 40 mm, preferably 6 mm, and the thickness W1 of the fluorocarbon resin sheet 4 is
2 is 0.05 to 0.2 mm, preferably 0.1 mm. The thickness W1 of the fluorocarbon rubber sponge sheet 2 and the thickness W2 of the fluorocarbon resin sheet 4 may have other values. The adhesive layer 3 is formed with an extremely thin thickness sufficient to firmly bond these sheets 2 and 4 to each other.

FIG. 2 is a cross-sectional view showing a structure when the fluororubber sponge laminate 1 of the present invention is used as a sealing material in a honeycomb rotor device, and FIG. 3 is a simplified axial right-angle cross-section of the honeycomb rotor device. FIG. 4 is a sectional view taken along the line IV-IV in FIG. A honeycomb rotor 7 is coaxially provided in a cylindrical casing 6 having a horizontal axis and is rotated in a rotation direction 8. Partitioning members 11, 12 are provided between the outer cylinder 9 and the inner cylinder 10 of the casing 6.
By this, a treatment area 13 and a regeneration area 14 are sequentially formed in the circumferential direction facing the honeycomb rotor 7 on both sides of the honeycomb rotor in the axial direction (direction perpendicular to the paper surface of FIG. 3). The processing area 13 is supplied with air to be processed containing a solvent from a coating booth for coating the automobile, and the solvent is recovered by passing through the honeycomb rotor 7 facing the processing area 13. The clean air is returned to the painting booth again. In the regeneration area 14, air is made to flow in the opposite direction to the air flow in the processing area 13 to regenerate the honeycomb rotor 7.

The sealing material 1a is used to make the outer cylinder 9 and the honeycomb rotor 7 that are a part of the casing 6 airtight, and the sealing material 1b is similarly used to make the inner cylinder 10 and the honeycomb rotor 7 airtight. Used. The end of the seal material 1a extends inward in the radial direction. The end of the sealing material 1b is connected to the honeycomb rotor 7
Extending radially outward of. As clearly shown in FIG. 2, the sealing material 1a is fixed to the outer circumference of the outer cylinder 9 by using a pressing member 15 such as a metal belt and bolts 16. The fluorocarbon resin sheet 4 of the sealing material 1a elastically contacts the annular sliding piece 17 that constitutes a part of the honeycomb rotor 7. Since the fluorine resin sheet 4 has a small friction coefficient and is excellent in wear resistance, the rotational power of the honeycomb rotor 7 does not increase.

The sealing material 1b is also fixed to the inner cylinder 10 so that the fluorine resin sheet elastically contacts the end plate 18 that forms the central portion of the honeycomb rotor 7.

FIG. 5 is a sectional view taken along the section line V-V in FIG. The sealing member 1c is pressed onto the partition member 11 by a holding plate 19 and fixed by using a bolt 20 or the like. The fluorocarbon resin sheet of the sealing material 1c elastically contacts the end face of the honeycomb rotor 7 in the same manner as described above, and the tip end portion thereof extends downstream in the rotational direction 8 of the honeycomb rotor 7.

In this way, even if the fluorocarbon resin sheet 4 of the sealing material 1a is worn in the honeycomb rotor device and the fluorocarbon rubber sponge sheet 2 comes into contact with the sliding piece 17 to generate fine powder of the fluorocarbon rubber sponge, The fine powder of fluorocarbon rubber sponge does not adversely affect the finish of coating using urethane resin paint or the like that is performed in the coating booth.

The other partition member 12 is also provided with the sealing material 1d in the same manner.

FIG. 6 is a cutaway sectional view showing a honeycomb rotor device of another embodiment of the present invention. A honeycomb rotor 27 is provided in the housing 26.

FIG. 7 is a perspective view of the honeycomb rotor 27. The honeycomb rotor 27 is rotated around its horizontal axis in the direction indicated by the reference numeral 28. The honeycomb rotor 27 is a tubular adsorbent in which a large number of narrow passages are formed in the direction perpendicular to the rotation axis 29 (that is, in the radial direction). The air to be treated is supplied from the inlet 30 and passes radially inward through the honeycomb rotor 27 from the passages 31 in the housing 26 in the treatment region 44, whereby the solvent is recovered. Clean air is withdrawn from the effective drum 32 via an outlet 33. Partition members 34, 35, 36, 37 are formed circumferentially at intervals on the radially outer side and the radially inner side of the honeycomb rotor 27, and these are respectively provided with the sealing material 1b. Airtightness between the partition members 34 to 37 and the honeycomb rotor 27 is achieved. Furthermore, a seal member may be provided between the casing 26 and the honeycomb rotor 27 to achieve airtightness. In the drum 32, from the inlet 39, through the space 40 between the partition members 36, 37, air is passed radially outward through the honeycomb rotor 27 to regenerate the honeycomb rotor 27, and the partition member 3
It is discharged from the outlet 42 through the space 41 between the 4,35. Space 40,4
A treatment region 43 is formed by the one, and the remaining region in the circumferential direction of the honeycomb rotor 27 is a treatment region 44 for collecting the solvent.
It is said that

Also for the honeycomb rotor device having such a configuration, the sealing material 1b, which is the same fluorine rubber sponge laminate as described above, is used, and the fluorine resin sheet elastically contacts the honeycomb rotor 27, Airtightness is achieved.

The fluororubber sponge laminate according to the invention is not only implemented in connection with a honeycomb rotor device, but can also be implemented in other applications.

As described above, according to the fluororubber sponge laminate of the present invention, the fine powder of the fluororubber sponge sheet and the fluororesin sheet adheres to the vehicle body to be coated, for example, in the painting process of an automobile. However, it does not adversely affect the paint finish. Further, the fluororesin sheet can reduce the frictional force at the time of contact and sliding.

Furthermore, according to the present invention, a fluororubber sponge laminate is used as a sealing material between the casing and the honeycomb rotor housed therein, or between the partition member and the honeycomb rotor that partition the processing region and the regeneration region in the casing. Since the fluororesin sheet comes into contact with the honeycomb rotor, the rotational power of the rotor can be prevented from increasing, and the fluororubber sponge sheet and the fluorocarbon rubber sheet can be contained in the gas passing through the honeycomb rotor. Even if the fine powder of the resin sheet is contained, the coating is not adversely affected as described above.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a partial sectional view of a honeycomb rotor device using a sealing material 1a according to the present invention, and FIG. 3 is a simplified sectional view of the honeycomb rotor device. Fig. 4 is a sectional view taken along section line IV-IV in Fig. 3, Fig. 5 is a sectional view taken along section line V-V in Fig. 3,
FIG. 6 is a partially cutaway sectional view of a honeycomb rotor device according to another embodiment of the present invention, and FIG. 7 is a simplified perspective view of the honeycomb rotor 27 used in FIG. 1 ... Fluorocarbon rubber sponge laminate, 1a-1d ... Sealing material, 2
... Fluorocarbon rubber sponge sheet, 3 ... Adhesive layer, 4 ... Fluorocarbon resin sheet, 6 ... Casing, 7 ... Honeycomb rotor, 1
1,12,34 to 37 ... Partitioning member, 13,44 ... Processing area, 14,43 ... Regeneration area

Claims (2)

[Claims] 1. A fluororubber sponge laminate having a structure in which a fluororesin sheet is joined to the surface of a fluororubber sponge sheet. 2. A honeycomb rotor in which a honeycomb rotor provided in a casing is rotated around an axis of the honeycomb rotor, and a treatment region and a regeneration region are formed outside the honeycomb rotor by a partition member. In the apparatus, a sealing material is provided between the casing and the honeycomb rotor, or between the partition member and the honeycomb rotor, and the sealing material is provided on the surface of the fluororubber sponge sheet.
A honeycomb rotor device having a structure in which fluorine resin sheets are joined, and the fluorine resin sheets elastically contact the honeycomb rotor.