JPH0136952Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a nonwoven fabric roll device (hereinafter simply referred to as a nonwoven fabric roll device) used for textile processing.

``Prior art'' Conventional water absorption roll devices equipped with this type of suction piping include those mainly used in paper mills, in which through-holes are formed in the rubber wrapped around the shaft body, facing in the axial direction; 57-23750, which has a structure in which a roll shell with suction piping is wrapped with a water-absorbing material such as felt,
Furthermore, Japanese Patent Application Laid-Open No. 55-66398 proposes a dewatering device with suction piping and a large number of through holes extending in the axial direction, and a nonwoven fabric roll device is proposed in Patent No. 1304054 owned by the present applicant. The gist is:
There is a structure in which a large number of nonwoven fabrics are crimped and superimposed on a shaft body with suction piping. These water absorption roll devices and technical documents are known as prior art.

``Problems to be Solved by the Invention'' In the water absorption roll device according to this prior art shown in FIG. Since the material layer is extremely thin, the dewatering effect due to nipping force cannot be expected, and suction piping, whose main purpose is suction of fluids such as squeezed water and processing liquid (hereinafter simply referred to as fluid), is not fully utilized. There are some things that have not been done. Furthermore, in the water absorption roll device shown in FIG. 6, the suction and dehydration are performed only through the through hole 20 and the upper surface opening 20a of the through hole 20, as shown in the figure, and the area is extremely small, so a sufficient effect cannot be expected. thing. Furthermore, it is difficult to wrap and fix the felt 22 etc. on the outer peripheral surface of the roll shell 21, and conversely, it is difficult to maintain the shape, such as the felt 22 etc. easily peeling off, and there are many problems in use. thing. Furthermore, since the method disclosed in JP-A No. 55-66398 uses a hard roll, marks from the holes are attached to the workpiece and cause quality deterioration. In addition, other fiber rolls contain silicone resin used in elastic processing, emulsifiers etc. by emulsion dipping treatment for softening processing, or when various treatments are applied to pasted fabrics, they contain or adhere to them. Synthetic glues, starch pastes, etc., may stick to the surface of the fiber roll and cause a surface hardening phenomenon, or foreign matter attached to or woven into the fiber product may enter the unique fiber gaps of the fiber roll, causing a so-called clogging phenomenon. If the suction function deteriorates due to the above-mentioned problems, it becomes necessary to backwash the fiber roll. However, if the fiber roll does not have through holes, the backwashing fluid will not pass through the roll body sufficiently.
The effect of backwashing cannot be expected.

``Means for Solving the Problems'' Therefore, the present invention makes it extremely easy to maintain the shape of the roll body, and also performs backwashing intermittently in advance before surface hardening phenomena, clogging phenomena, etc. occur, and solves these problems. The purpose is to provide a nonwoven fabric roll device that can prevent the occurrence of clogging phenomena, etc., and its gist is as follows:
A cylindrical shaft body having a hollow portion opened at one end and opened in the axial direction of the main body, and a number of through holes communicating with the hollow portion formed on the circumferential surface of the main body, and bearing portions at both ends;
A large number of non-woven fabrics having an appropriate density are crimped between the opening of the shaft body as a blowing or suction means and the side plate of the shaft body and the outer peripheral surface thereof. In a nonwoven fabric roll device for textile processing, which is comprised of a roll body provided in a stacked manner, the roll body has a structure in which a large number of through holes are opened in the axial direction of the roll body.

``Function'' To explain when the nonwoven fabric roll device of the present invention is used as a suction roll, a pump (not shown) is used.
When the air in the cavity is sucked through the through holes in the roll body, the cavity becomes a vacuum area, and fluids such as water and processing liquid that adhere to and contain the workpiece passing through the surface of the roll body ( (hereinafter simply referred to as fluid)
is attached to or sucked into the superimposed nonwoven fabric of the roll body, and this fluid is sucked through the roll body and the through hole in the roll body → through hole → cavity → opening → through hole. Thereafter, it is discharged into a liquid storage tank and a discharge tank (not shown). This dehydrates the material to be treated.
It is washed with water, decontaminated, etc. In addition, when backwashing is performed, fluids such as water for backwashing, processing liquid, etc. (hereinafter simply referred to as fluids) are pumped through the through hole of the shaft body → opening → cavity → through hole using the discharge force of a pump, etc. The contaminants that have entered the fiber gaps of the nonwoven fabric are washed out and flowed out to the outer peripheral surface of the roll body, or the fluid in the through holes is washed out. Through the flow, the contaminants adhering to the through holes flow out to the outer peripheral surface of the roll body, and the backwashing operation is completed.

``Embodiment'' The drawing shows an embodiment of the present invention. In the drawing, 1 is a cylindrical shaft body having bearing parts 2, 2a at both ends, and this shaft body 1 has a hollow part facing in the axial direction. 3 is opened, and a large number of through holes 4 communicating with the cavity 3 are opened on the circumferential surface thereof. Further, one side of the shaft body 1 has an opening 5 which communicates with the cavity 3 and also with a through hole 6 formed in one of the bearings 2 in the axial direction. This opening 5 is connected to a pump through a through hole 6 of one bearing part 2 and a hose (not shown).
It is communicated with blowing and suction means (not shown) such as a cylinder. Reference numeral 7 denotes a side plate fixed to one end side of the shaft body 1. On this side plate 7, a large number of nonwoven fabrics 8 are sequentially superimposed, for example, by press molding, in a crimped manner, and then a side plate 9 is fixed to the other end side. 7, 9 and a large number of nonwoven fabrics 8 constitute a roll body 10. Then, a large number of through holes 11 are formed in the roll body 10 in the direction of its axis. The desired spacing and dimensions are as shown in FIG. It is necessary to open the through hole 11
The dimensions are preferably 0.5 to 5 mm.If the inner through hole 11 is 3 mm in diameter, the dimensional relationship is preferably as shown in the figure. In addition, as shown in FIG. 2, it is also possible to adopt a structure in which an auxiliary chamber 12 is provided, and in this example, a plurality of spacers 13 are preferably provided on the outer peripheral surface of the shaft main body 1 at equal intervals and facing in the axial direction. A nonwoven fabric 8 is superimposed on this spacer 13 in a compressed manner to form a roll body 10, and a through hole 11 is formed in this roll body 10. As a result, by providing a plurality of axially long auxiliary chambers 12 on the outer circumferential surface of the shaft body 1 and using them as liquid storage chambers, the suction and backwashing effects, which are the main objectives of the present invention, can be further improved. The bearing portions 2, 2a are, for example, bearings installed in a processing machine, and an appropriate number of nonwoven fabric rolls are supported thereon.

Next, the operating state of the present invention will be explained. For example, a pair of nonwoven fabric rolls are installed opposite each other, the object to be treated is inserted between them, and the object to be treated is sucked in the process of passing through.
In the dewatering device, the liquid attached to and contained in the processed material passing between the nonwoven fabric rolls is sucked onto the surface of each roll main body 10 through the suction force of a pump or the like, and then the liquid is removed from each nonwoven fabric 8 and the roll main body. 10 through the through hole 11→(or auxiliary chamber 12→) through hole 4→cavity 3→opening 5→through hole 6, and is then discharged to a liquid storage tank and a discharge tank (not shown). As a result, the object to be treated is dehydrated, washed with water, decontaminated, etc., and then transported to the next treatment step and drying step. Alternatively, when backwashing the roll body 10, the backwashing fluid is passed through the through hole 6 of the shaft body 1 → opening 5 → cavity 3 → through hole 4 (→
or permeate through the superimposed nonwoven fabric 8 and the through holes 11 of the roll body 10 via the subchamber 12),
Contaminants that have entered the fiber gaps of the nonwoven fabric 8 are washed out and flowed out to the outer peripheral surface of the roll body 10, or contaminants that have adhered to the through holes 11 through the flow of fluid in the through holes 11. At the same time, the water flows out to the outer circumferential surface of the roll body 10, and the backwashing operation is completed. Note that the process of overflowing and injecting fluid from the roll body 10 to perform treatments such as cleaning and deliquifying the workpiece is also substantially the same as the above-mentioned backwashing, so a description thereof will be omitted.

``Effects of the Invention'' As detailed above, the present invention consists of a shaft body equipped with suction piping, a roll body formed by superimposing a nonwoven fabric on this shaft body in a crimped manner, and a roll body that extends in the axial direction toward the roll body. Since this is a nonwoven fabric roll device having a large number of through holes, it is possible to suction and dewater the fluid of the object to be processed, for example, using the water absorbency of the nonwoven fabric itself and the suction force of the through holes. In this case, as shown by A in Figure 4, even if there is the aforementioned clogging phenomenon in a part of the nonwoven fabric, if the nonwoven fabric has water absorption properties around the through holes, the penetrating fluid and this area can be utilized. The fluid attached to and contained in the roll body can be smoothly sucked. In addition, since the nonwoven fabric has elasticity, in principle, the area around the top opening of the through hole sag inward so as to be covered, and the top opening of the through hole is closed by this hanging portion 11b. Therefore, marks caused by the through holes are not left on the object to be processed. Furthermore, by providing the through holes, the roll body can be backwashed smoothly, which is extremely effective in preventing clogging phenomena, for example. Furthermore, since the nonwoven fabrics are stacked in a compressed manner and through holes are formed therein, it is extremely easy to maintain the shape of the water-absorbent roll body.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view, FIG. 2 is a sectional view showing another example, and FIG. 3 is a sectional view showing another example.
The figure is an enlarged cross-sectional view of the main part, Figure 4 is an enlarged cross-sectional view showing the relationship between the roll body and the through holes, Figure 5 is a plan view showing an example of the dimensions of the through holes, and Figure 6 is a conventional water absorption roll. FIG. DESCRIPTION OF SYMBOLS 1... Shaft body, 2, 2a... Bearing part, 3... Cavity part, 4... Through hole, 5... Opening, 6... Through hole,
7, 9...Side plate, 8...Nonwoven fabric, 10...Roll body, 11...Through hole, 12...Subchamber, 13...Spacer.

Claims (1)

[Scope of Claim for Utility Model Registration] A cylindrical shaft body having a hollow portion that is open at one end and opened in the axial direction of the main body, a number of through holes communicating with this hollow portion on the circumferential surface of the main body, and bearing portions at both ends. A nonwoven fabric having an appropriate density is crimped between the side plate of the shaft body and the outer peripheral surface of the pump as a blowing or suction means, which is installed in the opening of the shaft body through the through hole of the bearing part and the hose. A nonwoven fabric roll device for processing textile products, which comprises a roll main body provided with a large number of rolls stacked on top of each other, and a nonwoven fabric roll device for processing textile products, the roll main body having a large number of through holes facing in the axial direction. Device. Through-holes opened in the roll body allow the suction of the through-holes,
A nonwoven fabric roll device for textile processing according to claim 1, which is installed in an area where a backwash function functions.