KR101917079B1 - Adhesive-type Automatic Dust Removal Device - Google Patents

Abstract

The present invention relates to an adhesive type automatic dust removing device which can remove dusts attached to upper and lower surfaces of an object by using an adhesive means. The adhesive type automatic dust removing device comprises: a supply shelf placing the object to remove the dusts; a dust removing part including a first roller part, a second roller part, a driving part and a height adjusting part; and a loading shelf installed on a front end of the dust removing part, and receiving and loading the object in which the dusts are removed by the dust removing part.

Description

Adhesive-type Automatic Dust Removal Device [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an adhesive type automatic dust removing apparatus, and more particularly to an adhesive type automatic dust removing apparatus which can remove dust adhering to the upper and lower surfaces of an object by using an adhesive means.

Since the dust adhering to the surface of the plate-shaped object made of a plate is firmly adhered by the paint or ink painted on the surface thereof, the paint or the printing device is subjected to dust removal such as a brush roller or a vacuum device The device is installed.

However, with a rotary brush or a suction device, it is not possible to instantaneously remove dust from the surface of a plate-shaped object moving at high speed in a coating device or a printing device.

Accordingly, a method has been considered in which a roller having tackiness on the circumferential surface is brought into contact with the plate-like object to adhere the dust to the outer circumferential surface of the roller.

However, due to repetitive adhesion, the roller outer circumferential surface, which is initially tacky, is also covered with dust adhering to the outer circumferential surface to lose its adhesiveness, so that periodic cleaning work is required to remove dust adhered to the outer circumferential surface of the roller.

When the plate-shaped object is difficult to bend like a thick plywood or a metal plate, the dust removing roller may be bent in a widthwise direction when viewed from the cross section of the plate-shaped object. There is also a limit to strongly pressing the plate-shaped object.

Accordingly, when the plate-shaped object is a thick plywood or metal plate, dust between the left and right side edges of one side of the plate-shaped substrate and the dust removing roller remains, while dust on the other side remains between the center and the dust removing roller.

In addition, only the center portion of the dust removing roller strongly contacted on one side of the plate substrate is worn and only the left and right side edges of the dust removing roller are worn on the other side. As a result, the dust on the flat plate- The use of this dust removing roller becomes impossible.

Korean Patent No. 10-1762886 Korea Patent No. 10-1995-0009356

One aspect of the present invention provides an adhesive type automatic dust removing apparatus which can remove dust adhering to the upper and lower surfaces of an object while automatically moving the object using two rollers including adhesive means.

The technical problem of the present invention is not limited to the technical problems mentioned above, and other technical problems which are not mentioned can be understood by those skilled in the art from the following description.

According to an embodiment of the present invention, there is provided an adhesive type automatic dust removing apparatus comprising: a supply shelf portion for placing an object to be removed; A first roller portion provided at a front end of the supply rack portion and configured to remove dust adhering to the upper portion of the object by using an adhesive means formed on the outer surface while rotating, A second roller portion connected to the first roller portion and rotating in a direction opposite to the first roller portion to remove dust adhered to the lower portion of the object using an adhesive means formed on the outer surface of the second roller portion, A driving unit connected to both sides of the first roller unit to drive the first roller unit and the second roller unit and a second roller unit connected to both sides of the first roller unit and rotated clockwise or counterclockwise, A dust removing unit including a height adjusting unit for adjusting a connection mounting position in a vertical direction; And a loading shelf installed at a front end of the dust removing unit to receive and load the dust-removed object by the dust removing unit.

In one embodiment, the height adjusting portion includes: a gear screw that is connected to both sides of the first roller portion in the up-and-down direction at right angles to each other, and forms a thread along the outer surface; And a rotation lever which is formed in a disc shape and which is installed on the gear screw and whose handle is extended in an upward direction so that the user can grasp the rotation shaft by hand and rotate the rotation lever, 110 to 130 parts by weight of high density polyethylene resin (HDPE), 170 to 190 parts by weight of talc, 1 to 10 parts by weight of germanium powder, 15 to 25 parts by weight of glass fiber reinforced plastic, 1 to 4 parts by weight of sucrose (C12H22O11) powder, 2 to 5 parts by weight of trehalose and 3 to 8 parts by weight of boehmite (AlO (OH)), (PVA) is added to 30 to 90 parts by weight of the ethylene vinyl acetate (EVA) resin coated on the inner side, 1 to 30 parts by weight of polyvinyl alcohol (PVA) 10 to 30 parts by weight, calcium carbonate 5 , 1 to 20 parts by weight of a thixotropic agent, 3 to 7 parts by weight of sodium silicate, 1 to 5 parts by weight of molybdenum disulfide (MoS2), 5 to 10 parts by weight of aluminum hydroxide, (TDI), hydrogenated TDI, trimethyl propane (TDI), tripe- nylmethane-triisocyanate (TDI), and mixtures thereof. , TTI), dipehenylmethane-4,4-diisocianate (MDI), hydrogenated MDI, and hexamethylene-diisocyanate (HDI). Isocyanate compound and may be attached to the rotating lever by an adhesive composition comprising a curing agent contained in an amount of 1 to 20 parts by weight based on 100 parts by weight of the subject.

According to one aspect of the present invention described above, it is possible to efficiently remove dust adhering to the upper and lower surfaces of the object by using the adhesive means.

According to another aspect of the present invention, it is possible to efficiently remove dust without depending on the shape of the object by adjusting the connection relation of the roller for removing dust corresponding to the shape of the object.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing a schematic configuration of an adhesive automatic dust removing apparatus according to an embodiment of the present invention. Fig.
2 is a view for explaining another embodiment of the dust removing unit of FIG.
Fig. 3 is a view for explaining the third roller portion of Fig. 2. Fig.

The following detailed description of the invention refers to the accompanying drawings, which illustrate, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with an embodiment. It is also to be understood that the position or arrangement of the individual components within each disclosed embodiment may be varied without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

1 is a diagram showing a schematic configuration of an adhesive automatic dust removing apparatus 10 according to an embodiment of the present invention.

Referring to FIG. 1, an adhesive type automatic dust removing apparatus 10 according to an embodiment of the present invention includes a supply shelf 100, a dust removing unit 200, and a loading shelf unit 300.

The supply shelf 100 feeds the object to be removed by the dust removing unit 200 installed at the front end.

In the present invention, the term "object" may be any object that can be formed in the form of a flat plate, for example, a polygonal plate such as a circular plate, a square, or a textile material.

The dust removing unit 200 is installed at a front end of the supply rack unit 100 and includes two rollers (i.e., the first roller unit 210 and the second roller unit 220) The dust attached to the upper and lower surfaces of the object supplied from the supply shelf 100 is removed.

The dust removing unit 200 includes a first roller unit 210, a second roller unit 220, a driving unit 230, and a height adjusting unit 240.

The first roller unit 210 is formed in the form of a cylindrical roller and rotates in a direction opposite to that of the second roller unit 220 connected to the lower part by the driving unit 230 and faces the second roller unit 220 The dust attached to the upper part of the object is removed by using the adhesive means formed on the outer side while moving the object to the space.

In one embodiment, the first roller portion 210 and the second roller portion 220 improve the dust removing effect and reliability by peeling the film one by one and removing the dust of the object with the adhesive force of the adhesive surface, A transparent film such as OPP, PP, PET, CPP or PE is used, and the user can visually confirm the amount of dust to be attached.

Here, the film may be made of polypropylene, polyethylene, polyester, or the like. The thickness of the film may be 0.02 to 0.2 mm, and the film may be coated with an acrylic adhesive, a water-soluble adhesive, a rubber adhesive or the like to remove dust.

In one embodiment, the first roller portion 210 can move in the vertical direction corresponding to the thickness of the object.

Accordingly, the present invention can adjust the space between the first roller portion 210 and the second roller portion 220 according to the thickness of the object, thereby removing dust and the like irrespective of the height change of the object , Even if the user's hand enters the space between the first roller portion 210 and the second roller portion 220, the space can be adjusted correspondingly, thereby preventing a safety accident such as a hand being caught between the rollers .

The second roller portion 220 is disposed on the lower side of the first roller portion 210 so as to be opposite to the first roller portion 210 and rotates in a direction opposite to the first roller portion 210, And the dust adhered to the lower portion of the object is removed using the adhesive means.

The second roller portion 220 rotates in a direction opposite to the first roller portion 210 so that when the object is inserted into the space facing the first roller portion 210, It can be automatically moved in the direction of the shelf unit 300.

The driving unit 230 is connected to both sides of the first roller unit 210 and the second roller unit 220 and drives the first roller unit 210 and the second roller unit 220 using a driving device such as a plurality of step motors, (220).

The height adjusting portion 240 is connected to both sides of the first roller portion 210 and rotates in a clockwise or counterclockwise direction so that the connecting position of the driving portion 230 of the first roller portion 210 is shifted up and down Direction.

In one embodiment, the height adjustment portion 240 includes a gear screw 241 and a rotation lever 242.

The gear screw 241 is connected to both sides of the first roller portion 210 in the up-and-down direction at right angles to each other, forms a thread along the outer surface thereof, and has a rotation lever 242 at an upper portion thereof.

In one embodiment, the gear screw 241 is inserted into a through-hole (not shown in the drawings) formed in the vertical direction in the driving portion 230, engaged with a thread formed on the inner surface of the through hole, The first roller portion 210 connected to the lower side can be lifted upward or downward by the rotation of the rotary lever 242.

The rotary lever 242 is formed in a disc shape and is installed on the upper part of the gear screw 241. A handle 244 is extended upward in one side of the upper part so that the user can grasp it by hand and rotate it.

In one embodiment, the rotating lever 242 comprises 110 to 130 parts by weight of high-density polyethylene resin (HDPE), 170 to 190 parts by weight of talc, 1 to 10 parts by weight of talc, 15 to 25 parts by weight of glass fiber reinforced plastic, 2 to 7 parts by weight of glue, 5 to 10 parts by weight of cork powder, 1 to 4 parts by weight of sucrose (C12H22O11) powder, 2 to 5 parts by weight of betaine and boehmite , AlO (OH)), and a sheath 243 formed of a plastic composition having a specific gravity of 1.02 to 1.10.

Here, the envelope 243 is made of 110 to 130 parts by weight of high-density polyethylene resin (HDPE) based on 100 parts by weight of the polypropylene resin so as to radiate far-infrared rays that improve mechanical properties and twisting phenomenon and promote metabolism of the body. 170 to 190 parts by weight of talc, 1 to 10 parts by weight of germanium powder, 15 to 25 parts by weight of glass fiber reinforced plastic, 2 to 7 parts by weight of glue, 5 to 10 parts by weight of cork powder, 1 to 10 parts by weight of sucrose (C12H22O11) ~ 4 parts by weight, 2-5 parts by weight of betaine, and 3-8 parts by weight of boehmite (AlO (OH)) and having a specific gravity of 1.02-1.10.

The plastic composition for making the envelope 243 of the present invention may comprise a polypropylene resin, high density polyethylene resin (HDPE), talc and germanium powder.

When the above-mentioned plastic composition is used, it is possible to improve the mechanical properties such as heat resistance and durability, to improve the twisting phenomenon, to promote the metabolism by radiating the far-infrared rays and to improve the storage stability of the food stored in the plastic container It is possible to produce an effect of producing a plastic sheet (product) which can be improved.

Polypropylene resin is a thermoplastic resin which is obtained by polymerization of propylene and is known as an environmentally friendly material which is inexpensive in performance and is free from the risk of contact with the contents of foods or cosmetics. It is excellent in properties and thermal properties.

The polypropylene may be at least one selected from a propylene homopolymer, a random copolymer, and a block copolymer. In order to improve the mechanical properties, a homopolymer and a random copolymer are mixed at a weight ratio of 3: 2 .

High-density polyethylene (HDPE) resin is a synthetic resin produced by polymerizing ethylene, and has excellent flowability, rigidity, impact resistance, electrical insulation, moldability, and cold resistance.

The high-density polyethylene resin may have the effect of improving the formability by mixing with the polypropylene resin to strengthen the tensile force in the production of the plastic sheet or the product, and a variety of known products can be used.

Talc improves mechanical properties such as strength and heat resistance of a plastic composition, and it is preferable to use a talc powder having a particle size of 150 to 200 mesh for mixing with a polypropylene resin or the like.

The talc may be used in admixture with other filler components, and may preferably be mixed with the dolomite powder at a weight ratio of 1: 1 to contribute to improvement of the durability of the plastic composition.

Germanium is a silver-white quasi-metal, which has the effect of promoting metabolism by radiating a large amount of far-infrared rays and anions which are beneficial to the human body.

In addition, germanium, due to its semiconducting properties, causes germanium ions (outer electrons) to enter the body when it comes into contact with the skin, thereby enhancing the vitality. When it enters the body, it is released out of the body in 20 to 30 hours together with various harmful substances. There is no side effect at all.

Particularly, when the particles of inorganic germanium come into contact with human skin, semiconductor properties are introduced into the skin tissue by the osmotic action of the outer electron. It has been found that germanium, which penetrates into capillaries in subcutaneous tissue, moves electrons in blood vessels through blood vessels, cleanses blood, normalizes blood, and discharges excess electrons to relieve pain.

The germanium can be used in the form of a powder. It is preferable that the germanium ore is finely cut to 3 cm or less and then the cut germanium ore is pulverized to a particle size of 80 to 100 mesh.

In one embodiment, the plastic composition preferably comprises 110 to 130 parts by weight of high-density polyethylene resin, 170 to 190 parts by weight of talc, and 1 to 10 parts by weight of germanium powder, based on 100 parts by weight of the polypropylene resin.

When the sheath 243 is manufactured using the plastic composition, it is important to control the specific gravity of the plastic composition in order to eliminate the twisting phenomenon. The specific gravity is preferably 1.02 to 1.10, more preferably 1.03 to 1.05, That is, when the content of the high-density polyethylene resin is less than 110 parts by weight or less than 170 parts by weight with respect to 100 parts by weight of the polypropylene resin, strengthening of mechanical properties such as durability is limited, If the polyethylene resin exceeds 130 parts by weight or the talc exceeds 190 parts by weight, the specific gravity of the plastic composition may increase and the moldability may be deteriorated.

If the amount of the germanium powder is less than 1 part by weight with respect to 100 parts by weight of the polypropylene resin, far infrared ray emission effect due to germanium is difficult to manifest. If the amount is more than 10 parts by weight, It can become bad.

In one embodiment, the plastic composition described above may further comprise glass fiber reinforced plastic to enhance impact resistance.

Fiberglass Reinforced Plastic (FRP) is a material in which glass-based minerals are used as main materials and aromatic nylon fibers and thermosetting resins are combined with glass-based minerals.

The glass-based mineral may be at least one selected from the group consisting of silica sand, limestone, feldspar, and soda ash, but is not limited thereto.

As the thermosetting resin, various known thermosetting resins can be used, and preferably, polyester or epoxy resin can be used.

Glass fiber reinforced plastics can be produced by mixing materials such as glass-based minerals and putting them into a melting furnace. Each air layer sealed between glass fibers functions as a heat insulating layer, so that it is excellent in incombustibility, sound absorption property and workability.

Also, it is stronger than iron, lighter than aluminum, and does not rust. It has excellent nonflammability and is not deformed by heat and is easy to process.

At this time, it is preferable to add glue to improve the mixing property with glass fiber reinforced plastic (pellet type) and PVC.

Glue is a substance that solidifies the liquid of an animal such as an animal's skin, intestines, bones, etc., and solves problems such as the release of environmental hormones while improving the binding force of each component.

The glass fiber reinforced plastic and the glue are preferably contained in an amount of 15 to 25 parts by weight and 2 to 7 parts by weight, respectively, based on 100 parts by weight of the polypropylene resin. If the glass fiber reinforced plastic and the glue are less than the above range, If it exceeds the range, the product may be cracked during production and is uneconomical.

In one embodiment, a cork powder may be further included to improve the elasticity in fabricating the envelope 243 using a plastic composition.

The cork powder can be prepared by removing the shell of oak oak, and then crushing it. For the cork powder to be mixed with polypropylene resin or the like, it is preferable to use fine pulverized particles which are sieved through a mesh of 400 mesh or more.

The cork powder is preferably contained in an amount of 5 to 10 parts by weight based on 100 parts by weight of the polypropylene resin. When the cork powder is less than 5 parts by weight, the degree of improvement of the elasticity is insignificant. When the cork powder is more than 10 parts by weight, The voids formed in the inside during manufacturing may become large and the durability may be weakened.

In order to improve the mixing property of the cork powder and the other ingredients, sucrose (C ₁₂ H ₂₂ O ₁₁ ) powder may be further added.

The sucrose not only smoothes the pores formed between the cork powders but also tends to be viscous in the process of mixing with PVC and the like, which can catch the molecules causing the problem of bad odor, which can contribute to solving the problem of bad odor.

The sucrose is preferably a powder that has been passed through a 500-mesh net, and is preferably contained in an amount of 1 to 4 parts by weight based on 100 parts by weight of the polypropylene resin. When sucrose is less than 1 part by weight, If the amount is more than 4 parts by weight, it is not only economical but also may weaken the mechanical properties of the product.

In one embodiment, the plastic composition may further comprise a white powder. Potassium alum (potassium aluminum sulfate, AlK (SO ₄ ) ₂ .12H ₂ O) can be used as the alum, and can be obtained from natural alum.

Concretely, it can be produced by dissolving alunculus in water and filtering it, then breaking it, and cooling it if irregularly shaped crystals are formed. The alumina is preferably contained in an amount of 2 to 5 parts by weight based on 100 parts by weight of the polypropylene resin. When the alumina content is less than 2 parts by weight, the alumina effect is insignificant.

In one embodiment, the plastic composition according to the present invention may further comprise boehmite (Boehmite, AlO (OH)) to improve antimicrobial properties.

Boehmite can be any of γ-boehmite, a-boehmite and pseudo-boehmite. Among these, boehmite is excellent in crystallinity, excellent in thermal stability and chemical stability, structurally neutral, It is preferable to use an excellent? -Behoeite.

The γ-boehmite can be produced by supercritical synthesis of only water (pure water) and aluminum (Al). It is preferable that boehmite is included in 3 to 8 parts by weight with respect to 100 parts by weight of the polypropylene resin. If the content of boehmite is less than 3 parts by weight, it is difficult to exhibit the antimicrobial effect to be achieved. There is a possibility that the mixing property of the resin is deteriorated.

Hereinafter, the composition and effect of the plastic composition according to the present invention will be described in more detail with reference to specific examples and comparative examples. However, this embodiment is intended to explain the present invention more specifically, and the scope of the present invention is not limited to these embodiments.

[Example 1]

180 kg of polypropylene resin, 200 kg of high density polyethylene resin (HDPE), 310 kg of talc and 15 kg of germanium powder were mixed to prepare a plastic composition.

[Example 2]

And 36 kg of glass fiber reinforced plastic and 9 kg of glue were further mixed to prepare a plastic composition.

[Example 3]

9 kg of cork powder, 5 kg of sucrose powder, 5 kg of white powder, and 9 kg of gamma-boehmite were further mixed to prepare a plastic composition.

[Comparative Example 1]

Was prepared in the same manner as in Example 1, except for talc.

[Experimental Example 1: Evaluation of impact resistance]

A specimen (20 cm * 30 cm, thickness 20 mm) was prepared using the plastic compositions of Examples 1 to 3 and Comparative Example 1, and a weight of 3 kg was dropped at a height of 2 m. The degree of breakage of each specimen was measured, The results are shown in Table 1 below.

As can be seen from the above Table 1, it was found that the examples including the talc were superior in impact resistance as compared with Comparative Example 1 which did not include talc. In particular, in Examples 2 and 3 containing glass fiber reinforced plastics, the best results were obtained.

[Experimental Example 2: Evaluation of heat resistance]

The specimen of Experimental Example 1 was heated for 3 hours in a hot air circulating heating furnace maintained at 80 ° C, and yellowing degree was visually observed. The results are shown in Table 2 below.

As can be seen from Table 2, in Examples 1 to 3, yellowing portions were hardly observed unlike Comparative Example 1. As a result, it was found that the heat resistance of the example was much better than that of the comparative example 1.

[Experimental Example 3: Evaluation of antimicrobial activity]

Example 1, Example 3 and Comparative Example 1 were subjected to a test for antibacterial activity (JIS Z 2801). Aspergillus niger ATCC 9642 (fungus) was used as the test strain and the antibacterial activity (antibacterial activity value) was evaluated and shown in Table 3 below.

The antimicrobial activity value refers to a value obtained by evaluating the degree of antimicrobial activity by comparing the number of strains cultured for a certain period of time. When the value is 1 or more, 90% or more of the strains are present, 2 or more are 99% , More than 99.99% of the strain is over 4, and more than 5 is more than 99.999% of the strain is killed.

As can be seen from the above Table 3, it was predicted that the antibacterial activity of Example 3 including gamma-boehmite was much better than those of other cases.

The envelope 243 made of the plastic composition having the above-described composition is prepared by blending 1 to 30 parts by weight of polyvinyl alcohol (PVA), 10 to 30 parts by weight of water, 30 to 90 parts by weight of ethylene vinyl acetate (EVA) 5 to 30 parts by weight of calcium carbonate, 0.1 to 1 part by weight of a surfactant, 1 to 20 parts by weight of a thixotropy imparting agent, 3 to 7 parts by weight of sodium silicate, 1 to 5 parts by weight of molybdenum disulfide (MoS2) (TDI), hydrogenated TDI, trimethyl propane (TDI), triphenylmethane-tetrafluoroborate (TDI), and the like, and 5 to 10 parts by weight of water as a solvent and 10 to 30 parts by weight of water as a solvent. At least one of tripe- nylmethane-triisocyanate (TTI), diphenylmethane-4,4-diisocy- anate (MDI), hydrogenated MDI, and hexamethylene-diisocyanate Isocyanate containing one component Made of a compound, it can be attached to the rotating lever 242 by means of an adhesive composition comprising a curing agent that is an amount of 1-20 parts by weight per 100 parts by weight of the subject.

In one embodiment, the adhesive composition used to adhere the envelope 243 is an adhesive composition comprising a topical and a curing agent, the subject of which is a composition comprising 30 to 90 parts by weight of an ethylene vinyl acetate (EVA) resin, polyvinyl alcohol (PVA) 1 to 30 parts by weight of water, 10 to 30 parts by weight of water, 5 to 30 parts by weight of calcium carbonate, 0.1 to 1 part by weight of a surfactant and 1 to 20 parts by weight of a thixotropic agent, and the curing agent may include an isocyanate compound have.

The adhesive composition is a water-soluble two-component adhesive composition composed of a subject and a curing agent, which can be applied and cured to produce an adhesive sheet or an adhesive. The adhesive composition is excellent in physical properties such as adhesiveness and heat resistance Wood board such as plywood, inorganic board such as magnesium board, PVC, and the like.

The subject basically comprises an ethylene vinyl acetate (EVA) resin, polyvinyl alcohol (PVA), water, calcium carbonate, a surfactant and a thixotropic agent, the ethylene vinyl acetate resin being the main component of the subject, The strength of the adhesive sheet or adhesive can be kept constant.

Conventionally, an epoxy resin is used as a main component of an adhesive sheet or an adhesive. However, in the case of an adhesive sheet or an adhesive using an epoxy resin, volatile organic compounds such as benzene toluene are released to adversely affect the environment and human body.

However, the adhesive composition of the present invention can solve problems such as environmental problems by eliminating the epoxy resin.

Polyvinyl alcohol (PVA) has a role of improving the heat resistance, water resistance and adhesiveness of an adhesive sheet or adhesive to be produced.

The polyvinyl alcohol is preferably contained in an amount of 1 to 30 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. When the amount of the polyvinyl alcohol is less than 1 part by weight, it is difficult to improve the heat resistance, , The relative content of ethylene vinyl acetate may be reduced and the cohesive force of the adhesive sheet or adhesive may be weakened.

Further, in the present invention, antimony oxide and zirconium oxide may be used together with polyvinyl alcohol in order to supplement the functionality of polyvinyl alcohol when used in an ondol floor or the like.

Antimony oxide and zirconium oxide are materials capable of enhancing the heat resistance of the adhesive sheet or adhesive to be produced and are preferably contained in an amount of 5 to 10 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. The effect of enhancing is insignificant, and when it exceeds the above range, it is uneconomical.

Water can be used as a solvent for the subject.

INDUSTRIAL APPLICABILITY The present invention has the effect of solving the environmental pollution problem without using a volatile organic solvent unlike the conventional adhesive sheet or adhesive.

Water is preferably contained in an amount of 10 to 30 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. When the amount of water is less than 10 parts by weight, ethylene vinyl acetate resin and the like can not be effectively dissolved. The strength of the adhesive sheet or the adhesive may be lowered.

Calcium carbonate modulates the viscosity of the adhesive composition and reduces shrinkage upon curing.

The calcium carbonate is preferably contained in an amount of 5 to 30 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate (EVA) resin. When the amount of calcium carbonate is less than 5 parts by weight, sufficient shrinkage does not occur during curing, If the amount is more than 30 parts by weight, the viscosity may become too tight and the productivity may be deteriorated.

In addition, the present invention may use various materials such as wormwood and clay to replace calcium carbonate. For example, dolomite and / or talc may be used.

In order to improve the mechanical properties, dolomite and talc are preferably mixed at a weight ratio of 1: 1, and the powder preferably has a particle size of 150 to 200 mesh, The use of the finely pulverized powder to improve the mixing property with other components such as ethylene vinyl acetate resin.

The surfactant is used in order to reduce the surface tension when mixing the adhesive composition and to improve the coating property.

The surfactant is preferably contained in an amount of 0.1 to 1 part by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin.

As the surfactant, known nonionic surfactants and anionic surfactants can be used, but in order to effectively reduce the surface tension, it is preferable to use a gemini type sulfonic acid type surfactant containing an alkyl chain having 8 to 14 carbon atoms .

The thixotropic agent prevents the adhesive composition from flowing down by suppressing the separation phenomenon between the subject and the curing agent when the adhesive composition is applied to the adhesive sheet or the adhesive, and it is possible to use various known various substances such as silica, acryl copolymer and the like But it is preferable to use a clay.

Clay is an aggregate of fine hydrated silicate minerals. It refers to a material that is mixed with an appropriate amount of water and kneaded to produce plasticity, exhibits rigidity when dried, and sintered when baked at a high temperature.

Specifically, at least one powder selected from the group consisting of kaolinite, fumed silica and bentonite may be used, but in order to obtain the best effect, it is preferable to use a mixture of fumed silica and bentonite in a weight ratio of 1: 1.

The thixotropic agent is preferably contained in an amount of 1 to 20 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin. When the thixotropic imparting agent is less than 1 part by weight, the flowability can not be sufficiently controlled, If the amount is more than 50 parts by weight, the flowability may be excessively vanished and the productivity may be lowered.

In addition, the subject may further include sodium silicate to improve the adhesive strength of the adhesive sheet or adhesive to be produced.

Unlike conventional adhesives, sodium silicate does not cause pollution and is environmentally friendly and has excellent adhesion.

The sodium silicate is preferably contained in an amount of 3 to 7 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin based on the solid content. When the amount of the sodium silicate is less than 3 parts by weight, If it exceeds 7 parts by weight, miscibility with other components may be deteriorated.

The subject may further include molybdenum disulfide to improve the abrasion resistance of the adhesive sheet or adhesive to be produced.

Molybdenum disulphide (MoS2) is found in thin veins in minerals and is mined and used as a lubricant.

Molybdenum disulfide (MoS2) has inherent characteristics of a hexagonal crystal structure in which shear is easily generated, such as graphite, but the lubricating action is superior to that of graphite.

The molybdenum disulfide is preferably contained in an amount of 1 to 5 parts by weight based on 30 to 90 parts by weight of the ethylene vinyl acetate resin based on the solid content. When the amount of the molybdenum disulfide is less than 1 part by weight, the abrasion resistance can not be effectively improved. If it is exceeded, it may rather deteriorate the adhesive strength.

At this time, copper powder may be mixed with molybdenum disulfide.

Further, the subject may further include a flame retardant agent to improve the flame retardancy of the adhesive sheet or adhesive to be produced.

The flame retardant is preferably contained in an amount of 1 to 5 parts by weight based on 100 parts by weight of the ethylene vinyl acetate resin. When the flame retardant is less than 1 part by weight, the degree of improvement of the flame retardancy is insignificant. In addition, there is a fear that the miscibility with other components may deteriorate.

The flame retardant can be a white powder, which can be a potassium alum (potassium aluminum sulfate, AlK (SO 4) 2 .12H 2 O) and can be obtained from natural alum.

Concretely, it can be produced by dissolving alunculus in water and filtering it, then breaking it, and cooling it if irregularly shaped crystals are formed.

In addition, the subject may further include aluminum hydroxide to improve the antibacterial property of the adhesive sheet or adhesive to be produced.

As the aluminum hydroxide, boehmite (AlO (OH)) is preferably used.

Boehmite can be any of γ-boehmite, a-boehmite and pseudo-boehmite. Among these, boehmite is excellent in crystallinity, excellent in thermal stability and chemical stability, structurally neutral, It is preferable to use an excellent? -Behoeite.

The γ-boehmite can be produced by supercritical synthesis of only water (pure water) and aluminum (Al).

It is preferable that aluminum hydroxide is contained in an amount of 5 to 10 parts by weight based on 30 to 90 parts by weight of ethylene vinyl acetate. When the content of aluminum hydroxide is less than 5 parts by weight, it is difficult to exhibit the antimicrobial effect to be achieved, There is a possibility that the miscibility with other components may be impaired.

As the curing agent, those containing an isocyanate compound can be used.

The isocyanate compound has excellent solubility in water, and the curing agent can be uniformly mixed to the subject to maintain the proper viscosity and hardness, thereby shortening the curing time, and prolonging the pot life when mixing the curing agent with the curing agent, It has a remarkable improvement.

The isocyanate compound is preferably a compound containing at least two isocyanate groups in one molecule, and is preferably a compound containing at least two isocyanate groups in a molecule, such as toluene-diisocyanate (TDI), hydrogenated TDI, trimethylpropane-TDI Tripe- nylmethane-triisocyanate (TTI), diphenylmethane-4,4-diisocy- anate (MDI), hydrogenated MDI, or hexamethylene-diisocyanate , And it is preferable that the curing agent is included in an amount of 1 to 20 parts by weight based on 100 parts by weight of the subject.

The above-mentioned adhesive composition is prepared by mixing a subject and a curing agent to prepare an aqueous two-part adhesive composition, and then applying and curing the composition to a work site. If necessary, the adhesive composition may be partially or completely removed, And may further contain a dispersing agent, an antifoaming agent, an antiseptic agent, a thickening agent and the like within the range not hindering the object of the present invention, and may further include a coloring component to realize various colors of the adhesive sheet or adhesive to be produced .

Hereinafter, the composition and effect of the adhesive composition according to the present invention will be described in more detail through specific examples and comparative examples. However, this embodiment is intended to explain the present invention more specifically, and the scope of the present invention is not limited to these embodiments.

[Example 4]

80 parts by weight of ethylene vinyl acetate, 20 parts by weight of polyvinyl alcohol, 25 parts by weight of water, 10 parts by weight of calcium carbonate, 1 part by weight of a surfactant and 5 parts by weight of a thixotropic agent were mixed to prepare a subject. Toluene-diisocyanate and 25 parts by weight of a curing agent containing toluene-diisocyanate (TDI) were mixed and cured to prepare an adhesive sheet or an adhesive.

At this time, a gemini surfactant having 8 carbon atoms was used as a surfactant. The overall process of synthesis of the surfactant started with the reaction of diamine with 1-bromoalkane. 0.1 mole of N, N, N ', N'-tetramethyl-1,3-diaminopropane (N, N', N'- -bromooctane) was added to 300 g of acetonitrile and stirred for 30 minutes. The solution was refluxed at 353 K for 12 hours, and then the acetonitrile solvent was removed using a rotary evaporator. 500 g of diethylether was added to the resulting product to recrystallize the product. After filtering, it was washed with 500 g of diethyl ether and unreacted impurities were removed.

The product thus obtained was treated in a 323 K vacuum oven for 12 hours to remove residual solvent to prepare a gemini surfactant.

[Example 5]

Except that 5 parts by weight of atomium oxide and 5 parts by weight of zirconium oxide were further added in the form of powder to the subject.

[Example 6]

Except that 5 parts by weight of sodium silicate, 3 parts by weight of molybdenum disulfide, 3 parts by weight of alumina and 8 parts by weight of? -Behohexite were further added in powder form to the subject. Respectively.

[Comparative Example 2]

A comparative example 2 is a conventional epoxy ondol floor adhesive (SEP-4300, manufactured by Samchang Korea).

[Experimental Example 4: Adhesion Test]

An adhesive strength test (KS F 4715) was carried out for the Example and Comparative Example 2, and the results are summarized in Table 4 below.

The adhesion strength of the LH construction was 0.8 N / mm 2 or more as the acceptance standard, and all of the examples 4 to 6 and the comparative example 2 satisfied the acceptance criteria. However, it was found that the bonding strengths of Examples 4 to 6 were superior to those of Comparative Example 2.

[Experimental Example 5: Evaluation of heat resistance]

The adhesive sheets or adhesives of Examples 4 to 6 and Comparative Example 2 were heated for 8 hours in a hot-air circulating heating furnace maintained at 80 캜, and the yellowing degree was visually observed. The results are shown in Table 5 .

As can be seen from Table 5, in Examples 4 to 6, yellowing portions were hardly observed unlike Comparative Example 2. As a result, it was found that the heat resistance of the example was much better than that of Comparative Example 2.

[Experimental Example 6: Evaluation of antimicrobial activity]

The adhesive compositions of Example 6 and Comparative Example 2 were subjected to an antibacterial activity test (JIS Z 2801). Aspergillus niger ATCC 9642 (fungus) was used as a test strain and the antibacterial activity (antibacterial activity value) was evaluated and shown in Table 6 below.

The antimicrobial activity value refers to a value obtained by evaluating the degree of antimicrobial activity by comparing the number of strains cultured for a certain period of time. When the value is 1 or more, 90% or more of the strains are present, 2 or more are 99% , More than 99.99% of the strain is over 4, and more than 5 is more than 99.999% of the strain is killed.

As can be seen from the above Table 6, Example 6 including gamma-boehmite showed excellent antimicrobial activity as compared with Comparative Example 2.

The loading shelf unit 300 is installed at the front end of the dust removing unit 200 and receives and removes the dust-removed object by the dust removing unit 200.

The dust removing unit 200 having the above-described structure may further include an additional dust removing unit 400.

The additional dust removing unit 400 is installed between the supply shelf unit 100 and the dust removing unit 200 and attached to the upper and lower surfaces of the object to be supplied from the supply shelf unit 100 to the dust removing unit 200 The dust removing unit 200 firstly removes the dust therefrom.

' 형태로 상하 방향으로 대향하며 위치하여 하나의 쌍을 이루고 형성되며, 서로 대향하는 면이 서로 반대 방향으로 회전하여 대상물을 이동시키면서 대상물에 부착된 먼지 등을 내부 공간을 흡수하여 제거한다.Referring to FIG. 2, the additional dust remover 400 may be configured such that two rollers &

', And the opposite surfaces are rotated in opposite directions to move the object, and the dust or the like attached to the object is absorbed and removed from the inner space.

In one embodiment, the additional dust remover 400 can move the rollers up and down, as shown in FIG. 2, or pivot clockwise or counterclockwise in place, Can be moved freely like a robot arm.

In one embodiment, the additional dust remover 400 may include a third roller portion 410, a fourth roller portion 420, and an additional drive portion 430.

' 형태로 꺽인 형태(도 3 참조)로 형성되며, 제4 롤러부(420)와 대향하는 면이 회전하면서 대상물을 먼지 제거부(200)로 이동시켜며, 내부에 형성된 공간에 먼지 제거부(412)를 장착 설치한다.The third roller portion 410 is configured such that the intermediate portion for moving the object is in the downward direction or the upward direction,

(See FIG. 3), the surface facing the fourth roller unit 420 is rotated to move the object to the dust remover 200, and the dust remover 200 is provided with a dust removing unit 412).

In one embodiment, the third roller portion 410 may include a moving roller 411 and a dust collecting roller 412.

' 형태로 꺽인 형태(도 3 참조)로 형성되며, 제4 롤러부(420)와 대향하는 면이 회전하면서 대상물을 먼지 제거부(200)로 이동시킨다.The moving roller 411 is configured such that the intermediate portion for moving the object is the downward direction or the upward direction,

(See FIG. 3), and the surface opposite to the fourth roller unit 420 rotates to move the object to the dust remover 200. FIG.

In one embodiment, the moving roller 411 includes two fastening frames 4111, a moving roller 4112, and a plurality of driving rollers 4113.

The fastening frame 4111 is connected to both sides of the moving roller 4113 and is connected to the additional driving part 430 for fastening the third roller part 410 at both sides, (See Fig. 2) so as to change the position at which the object of the moving roller 4113 is moved.

The moving roller 4112 is connected between the fastening frames 4111 so as to move the object while rotating clockwise or counterclockwise and inserts a protruding part from the upper side or lower side of the object, A plurality of through holes are formed for absorbing foreign substances such as water.

The driving roller 4113 extends from the fastening frame 4111 in the direction of the moving roller 4112 and is connected to both sides of the moving roller 4112 and rotates while the portion connected to the moving roller 4112 rotates And rotates the moving roller 4112 clockwise or counterclockwise.

The dust removing unit 412 is mounted in the inner space of the moving roller 4112 and rotates in a direction opposite to the rotating direction of the moving roller 4112 and passes through the through hole of the moving roller 4112 to move the moving roller 4112 And the dust and the like are sucked into the inner space and discharged to the outside.

In one embodiment, the dust remover 412 may include a rotator 4121, a brush 4122, a suction tube 4123, and a driver 4124.

The rotation 4121 is formed in a shape corresponding to the movement roller 4112 and is formed in a size smaller than the movement roller 4112 and inserted into the inner space of the movement roller 4112, In the opposite direction.

In one embodiment, the rotor 4121 has a plurality of through holes formed in its body, so that a suction tube 4123, which will be described later, can suck the foreign object or dust of the object into its internal space using a suction force.

The brush 4122 rotates together with the rotation of the rotator 4121 and rotates through a through hole of the moving roller 4112 so as to remove foreign matter or dust of the object that has entered the inner space of the moving roller 4112. [ (4121) from one side to the other in the other direction.

In one embodiment, the brush 4122 is preferably formed of a material such as a brush so as to efficiently sweep away foreign matter, without damaging the object.

The suction pipe 4123 is connected to one side or both sides of the rotator 4121 and is connected to a vacuum device such as a vacuum cleaner for generating a suction force to suck air from the inner space of the rotor 4121, .

The driving unit 4124 is connected to one side or both sides of the suction pipe 4123 and rotates the suction pipe 4123 clockwise or counterclockwise to rotate the rotator 4121 connected to the suction pipe 4123 clockwise Or counterclockwise.

At this time, the driving unit 4124 can rotate the rotator 4121 by rotating the suction pipe 4123 connected to the rotator 4121.

Each of the third roller portions 410 having the above-described structure is identical in structure to the fourth roller portion 420 which is provided at the lower portion of the third roller portion 410 so as to face the third roller portion 410 Lt; / RTI >

The above-described additional dust removing unit 400 can change the moving direction of the object in the vertical direction or the back-and-forth direction according to the user's needs, beyond the function of the simple moving device for simply moving the object, It is possible to effectively remove the dust even when a separate dust removing device is not provided in the middle of the movement and to remove the foreign substances adhering to the object and the fluff of the object.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims. You will understand.

10: Adhesive automatic dust removing device 100: Supply shelf
200: dust removing unit 210: first roller unit
220: second roller portion 230:
240: Height adjuster 241: Gear screw
242: rotation lever 243: sheath
300: Loading shelf part 400: Additional dust removing part
410: third roller portion 411: moving roller
4111: fastening frame 4112: moving roller
4113: driving roller 412: dust collecting roller
4121: Tradition 4122: Brushes
4123: Suction tube 4124:
420: fourth roller portion 430: additional driving portion

Claims (2)

A supply shelf for placing an object to remove dust;
A first roller portion provided at a front end of the supply rack portion and configured to remove dust adhering to the upper portion of the object by using an adhesive means formed on the outer surface while rotating, A second roller portion connected to the first roller portion and rotating in a direction opposite to the first roller portion to remove dust adhered to the lower portion of the object using an adhesive means formed on the outer surface of the second roller portion, A driving unit connected to both sides of the first roller unit to drive the first roller unit and the second roller unit and a second roller unit connected to both sides of the first roller unit and rotated clockwise or counterclockwise, A dust removing unit including a height adjusting unit for adjusting a connection mounting position in a vertical direction; And
And a loading shelf installed at a front end of the dust removing unit to receive and load an object from which dust has been removed by the dust removing unit,
The height adjuster includes:
A gear screw which is connected to both sides of the first roller portion in the vertical direction and perpendicularly to the first roller portion and forms a thread along the outer side surface; And
And a rotary lever which is formed on the upper part of the gear screw and has a knob extending upward in an upper direction so that the user can grasp the rotary knob by hand and rotate the knob,
Wherein the rotating lever comprises 110 to 130 parts by weight of high density polyethylene resin (HDPE), 170 to 190 parts by weight of talc, 1 to 10 parts by weight of germanium powder, glass fiber reinforced plastic 15 to 25 parts by weight of glue, 2 to 7 parts by weight of glue, 5 to 10 parts by weight of cork powder, 1 to 4 parts by weight of sucrose (C12H22O11) powder, 2 to 5 parts by weight of betaine and boehmite, AlO To 8 parts by weight of a plastic composition having a specific gravity of 1.02 to 1.10,
The envelope is formed by mixing 1 to 30 parts by weight of polyvinyl alcohol (PVA), 10 to 30 parts by weight of water, and 5 to 30 parts by weight of calcium carbonate with respect to 30 to 90 parts by weight of an ethylene vinyl acetate (EVA) 0.1 to 1 part by weight of a surfactant, 1 to 20 parts by weight of a thixotropic agent, 3 to 7 parts by weight of sodium silicate, 1 to 5 parts by weight of molybdenum disulfide (MoS2), 5 to 10 parts by weight of aluminum hydroxide, To 30 parts by weight of a mixture of a toluene-diisocyanate (TDI), hydrogenated TDI, trimethyl propane-TDI, tripehnylmethane-triisocyanate (TTI) Is made of an isocyanate compound comprising at least one of diphenylmethane-4,4-diisocyante (MDI), hydrogenated MDI, and hexamethylene-diisocyanate (HDI) 100 parts by weight of the 1 to 20 parts by weight of an adhesive composition comprising a curing agent.

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