JPH0673429U - roller - Google Patents

Abstract

(57) [Summary] [Purpose] It has excellent flexibility and water absorbency and does not deteriorate its deformability due to heat. [Structure] In a roller configured to press against the surface of an object such as a printed circuit board or a glass plate and absorb water on the surface of the object while rotating, the rod-shaped core material 1 is made of ultrafine fibers to absorb water. It is inserted into the fabric material 2 having the property, and a plurality of the fabric material 2 are laminated in the axial direction of the core material 1 and attached to the core material 1. Alternatively, a water-absorbent fabric material 2 formed of ultrafine fibers is wound around a cylindrical core material 1 in a roll shape.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a roller used for absorbing moisture adhering to the surface of a printed circuit board, an IC case, a glass plate, a liquid crystal plate, etc., or removing dust by adhering it.

[0002]

[Prior art]

 Conventionally, printed circuit boards are subjected to surface treatment such as etching with chemicals, and then the oxide film on the surface is removed by brush (buff) polishing or chemical treatment, and then washed with water to wash away polishing dust and chemicals. There is. In addition, the glass plate is chemically treated on its surface and then washed with water in order to make it transparent during manufacturing. Similarly, the IC case (lead frame) is also washed with water to remove stains in the pretreatment process during manufacturing.

Objects such as printed circuit boards, glass plates, IC cases, liquid crystal plates, etc. are washed with water as described above and then drained to remove the water adhering to them. I will end up. Moisture on the object is finally dried by hot air, but if it is forcibly dried with the water still adhering, there is a problem that it takes a long time to dry, and traces of the water become stains. In particular, it not only stains on the printed circuit board but also causes rusting.If the rust is on the circuit, it is difficult to attach the solder, and it is easy to peel off after soldering. When incorporated, it may cause a failure of the product.

In order to solve such a problem, conventionally, as shown in FIG. 4B, a water-absorbing roller B made of sponge is disposed on the front side of the hot air dryer A, and the water-absorbing roller B is arranged as described above. The water absorption roller B absorbs the water D adhering to the object C while pressing and rotating the surface of the object C such as a printed substrate, and the water D left behind by the water absorption roller B is dried by the hot air dryer A behind it. It was dried. This water-absorbing roller B is a cylindrical sponge made by foaming polyvinyl alcohol (PVA), polyvinyl chloride (PVC) or the like on the outer periphery of a metallic cylindrical core E as shown in FIG. The sponge F has a large number of continuous pores for absorbing water.

[0005]

[Problems to be solved by the device]

 Since the sponge F of the water absorption roller B is weak against heat, if the water absorption roller B is arranged near the hot air dryer A, the hot air emitted from the hot air dryer A causes the sponge F on the surface of the water absorption roller B to be removed. It will harden. Then, even if the water absorption roller B is pressed against the object C, the deformation of the water absorption roller B can follow the unevenness in the stepped portion of the object C as shown in FIG. 5A or the uneven portion as shown in FIG. 5B. Instead, the adhesion with the object C becomes poor. In this case, the water D adhering to those parts remains without being absorbed, and the remaining water D may cause unevenness in drying, stains, and rust as described above.

An object of the present invention is to provide a roller which is excellent in flexibility and water absorption and which is not deteriorated in deformability by heat.

[0007]

[Means for Solving the Problems]

 As shown in FIG. 1, the roller according to claim 1 of the present invention is a roller which is pressed against the surface of an object such as a printed circuit board or a glass plate, and is adapted to absorb water on the surface of the object while rotating. The rod-shaped core material 1 is inserted into a cloth material 2 formed of ultrafine fibers and having water absorbency, and a large number of the cloth material 2 are laminated in the axial direction of the core material 1 and attached to the core material 1. It is what

As shown in FIG. 2, the roller according to the second aspect of the present invention is a roller which is pressed against the surface of an object such as a printed circuit board or a glass plate and is rotated to absorb water on the surface of the object. In the above, the outer peripheral surface of the tubular core material 1 is wound with a cloth material 2 formed of ultrafine fibers and having water absorbency in a roll shape.

[0009]

[Action]

 In the roller according to claim 1 of the present invention, since the ultrafine fibers are used, the water absorption is good, and moreover, since a large number of cloth materials 2 are laminated in the axial direction of the roller, the outer peripheral portion of the cloth material 2 is It can be spread, and even if multiple sheets are laminated, it does not become hard and water absorption does not deteriorate. Further, since the fabric material 2 is used for absorbing water, the surface is not hardened by heat so that the elasticity does not decrease and the water absorption does not decrease. Further, in this roller, since a plurality of circularly cut fabric materials 2 are laminated to form a roller, in particular, as shown in FIG. In the case where there is unevenness, the fabric material 2 of each part is independently deformed according to the unevenness, so that the adhesion with the object C is enhanced and the water absorption effect is high.

In the roller according to the second aspect of the present invention, since the fabric material 2 formed of the ultrafine fibers has a roll shape, the water absorption amount can be further increased.

[0011]

Embodiment 1 An embodiment of the roller of the present invention is shown in FIG. This roller is made of metal, plastic, or the like, and has a rod-shaped or tubular shape. The outer periphery of a core material 1 is cut into a circular shape, and a cloth material 2 is formed in the center of which an insertion hole 20 for inserting the core material 1 is formed. It is constructed by attaching several dozen sheets.

Specifically, a brim 11 having a hole 10 is inserted into one end of the core material 1, and the brim 11 is fixed to the end of the core material 1 so that the end thereof slightly protrudes (FIG. 1 (b)). }, And a screw portion 13 for screwing the nut 12 into the other end of the core material 1. Then, dozens of fabric materials 2 each having an insertion hole 20 are inserted into the threaded portion 13 of the core material 1 toward the opposite side collar 11 so as to be laminated, and thereafter, the threaded portion 13 is provided with a holed collar material. 14 was inserted, and a nut 12 was screwed into the threaded portion 13 from the outside so that dozens of fabric materials 2 were fixed between the two flanges 11 and 14 (FIG. 1 (a)). .

The collars 11 and 14 may be attached / fixed to the core material 1 by a fixing method using, for example, a split pin other than the method using the screw and the nut described above.

The fabric material 2 is a non-woven fabric (for example, Toraysee (registered trademark) manufactured by Toray Co., Ltd.) formed by adhering microfine polyester fibers of micron unit with glue or an adhesive, or woven fine fibers. Cloth etc. can be used.

[0015]

Embodiment 2 Another embodiment of the roller of the present invention is shown in FIG. This roller is constructed by winding a strip-shaped cloth material 2 into a roll several times around the outer circumference of a core material 1 formed of metal, plastic, paper or the like into a tubular shape. In order to prevent the fabric material 2 wound around the core material 1 from losing its shape, a part of the back surface of the fabric material 2 may be attached with an adhesive agent, or an end portion not related to water absorption. Fit the ring 15 on the.

[0016]

[Effect of device]

 Since the roller of the present invention uses the cloth material 2 for absorbing water, it has the following effects. ． Since the fabric material 2 itself has a considerable water absorption property, it has sufficient water absorption and drying ability without using a hot air drying device together. ． Even when used in combination with a hot-air drying device, the fabric material 2 is not cured by heat, so that reliable drying can be performed. ． Since the fabric material 2 also has a dust removing capability, when dust is attached together with water and the like, the dust is also removed, and when it is used for drying a printed circuit board or the like, printing defects are reduced and the yield is improved. Is improved. ． In particular, the roller according to claim 1 can reliably follow a step or unevenness in the laminating direction of the fabric material 2, and therefore exerts considerable power in removing water from such an object.

[Brief description of drawings]

FIG. 1A is a perspective view showing an embodiment of a roller of the present invention, and FIG. 1B is an assembly view for explaining the structure of FIG.

FIG. 2 is a perspective view showing another embodiment of the roller of the present invention.

3 is a front view showing a wiping state by the roller of FIG. 1,
(B) is the side view.

FIG. 4A is a perspective view showing an example of a conventional roller,
(B) is the schematic of the drying device using the roller.

5A and 5B are side views for explaining a wiping condition by the roller of FIG.

[Explanation of symbols]

 1 heartwood 2 fabric material

Claims (2)

[Scope of utility model registration request] 1. In a roller adapted to press against the surface of an object such as a printed circuit board or a glass plate and absorb water on the surface of the object while rotating, the rod-shaped core material 1 is
A roller characterized in that it is inserted into a fabric material 2 formed of ultrafine fibers and having water absorbency, a plurality of the fabric material 2 are laminated in the axial direction of the core material 1 and attached to the concentric material 1. 2. A roller, which is pressed against the surface of an object such as a printed circuit board or a glass plate and absorbs water on the surface of the object while rotating, is made of ultrafine fibers on the outer periphery of the cylindrical core material 1. A roller comprising the formed water-absorbent fabric material 2 wound in a roll shape.