KR101901456B1 - Extruded material Automatic Transferring and Cutting Device - Google Patents

Abstract

The present invention relates to an apparatus to automatically transfer and cut an extruded material, capable of cutting the extruded material by a length desired by a user while automatically transferring the extruded material. According to the present invention, the apparatus to automatically transfer and cut an extruded material comprises: a main frame to form a frame; a transfer unit to transfer the extruded material put on an upper part from one side to the other side; a cutting unit connected and installed to the rear end of the other side of the transfer unit to cut the extruded material transferred by the transfer unit; a position adjustment unit connected and installed to the rear end of the cutting unit to transfer the cutting unit in a horizontal or vertical direction, having a handle formed on a front end to allow a user to pull and move the cutting unit, and having a lifting valve formed on an upper part to vertically move the cutting unit from the main frame by being rotated in a clockwise or anticlockwise direction by the user; and a dust collection unit mounted and installed on the lower rear end of the cutting unit to suck residues generated during a cutting process of the extruded material.

Description

{Extruded material Automatic Transferring and Cutting Device}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic cutter for cutting an extrudate, and more particularly, to an automatic cutter for cutting an extrudate which can be cut to a length required by a user while automatically conveying the extrudate.

A cutting device for a typical extrudate (e.g., a plastic extrudate, a wood panel or plywood, etc.) includes a rotary saw to cut, a motor to drive the rotary saw, a table on which the extrudate is placed, And a slider for guiding the extrudate to be cut while passing through the rotary saw.

On the other hand, in the use of the cutting device having such a structure, first, the extrudate to be cut is placed on the slider, and then the power is applied by the motor to move the slider forward The cutting operation is performed in the process of passing the extrudate through the rotary top.

However, in the conventional cutting apparatus, a safety accident such as a user's carelessness or damage caused by fragments generated in the cutting process occurs in the course of use.

Korean Registered Utility Model No. 20-0296353 Korean Registered Utility Model No. 20-0297506

One aspect of the present invention is to provide a method and apparatus for automatically conveying extruded material and preventing the cutting pieces from splashing in the direction of the user, Cutting device.

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 automatic extrusion cutting device, comprising: a conveying part that forms a skeleton with a main frame and transfers an extruded material placed on the upper part from one side to another side; A cutting part connected to a rear end of the other side of the conveyance part so as to cut an extrudate conveyed by the conveyance part; A knob is provided at the front end so that the user can pull the cut portion in the direction of the extrudate and the knob is moved in the clockwise or counterclockwise direction so that the user can move the knife in the forward or backward direction or the vertical direction, A position adjusting unit for forming a lifting valve on the upper part of the main frame so as to move the cut part in a vertical direction by rotating the main body in a clockwise direction; And a dust collecting part mounted on a lower rear end of the cut-out part so as to suck debris generated in the cutting process of the extrudate, wherein the feed part is arranged horizontally so as to be able to convey the extrudate placed on the upper part in the direction of the cut- A plurality of conveying rollers installed in the inner space of the main frame in a row to guide the conveying of the extrudate in the direction of the cut part, A guide roller, a first pedestal formed at a rear end of the main frame and formed of a flat plate having a preset height so as to prevent debris generated during the cutting process of the extrudate, and a flat plate having a predetermined height, And the cutting edge of the cut portion moves So that with the first predetermined gap of the first stand and a second stand, which is installed at the rear end of the main frame.

In one embodiment, the handle includes: an extension extending in the 'a' form from the front end of the position adjuster in the forward direction; And 110 to 130 parts by weight of a high-density polyethylene resin (HDPE) relative to 100 parts by weight of a polypropylene resin so that a user can radiate far-infrared rays for improving mechanical properties and twisting phenomenon to be gripped by a hand, 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) To 4 parts by weight of the extrudate, 2 to 5 parts by weight of a betaine and 3 to 8 parts by weight of boehmite (AlO (OH)) and having a specific gravity of 1.02 to 1.10, 1 to 30 parts by weight of polyvinyl alcohol (PVA), 10 to 30 parts by weight of water, 5 to 30 parts by weight of calcium carbonate, 0.1 to 10 parts by weight of a surfactant 0.1 parts by weight of ethylene vinyl acetate (EVA) ~ 1 part by weight, thixotropy imparted 1 to 20 parts by weight of sodium silicate, 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 and 10 to 30 parts by weight of water as a solvent, (TDI), hydrogenated TDI, trimethyl propane (TDI), tripehnylmethane-triisocyanate (TTI), diphenylmethane-4,4-diisocyanate 4-diisocianate, MDI), hydrogenated MDI, and hexamethylene-diisocyanate (HDI). The amount of the isocyanate compound is 1 to 20 parts by weight based on 100 parts by weight of the mixture And a grip portion which is applied to the inner surface of the adhesive composition and attached to the extension portion.

According to one aspect of the present invention described above, it is possible to cut the extrudate to a length required by the user, while preventing cutting chips or the like from splashing in the user direction.

1 is a view showing a schematic configuration of an automatic extrusion cutting apparatus according to an embodiment of the present invention.
Figs. 2 and 3 are views for explaining the cutting edge of Fig.
Fig. 4 is a view for explaining the movement of the cutting edge of Fig. 2 or 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 view showing a schematic configuration of an automatic extrusion conveyance cutting apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an automatic extrusion cutting apparatus 10 according to an exemplary embodiment of the present invention includes a transfer unit 100, a cutting unit 200, a position adjusting unit 300, and a dust collecting unit 400.

The transfer unit 100 forms a skeleton with a main frame 110 formed of a material such as a plurality of rigid pipes or the like, and transfers the extruded material placed on the upper part from one side to another side where the cut part 200 is mounted.

The conveying unit 100 includes a plurality of conveying rollers (not shown) installed in the inner space of the main frame 110 to horizontally heat the extruded materials placed on the upper portion in the direction of the cutouts 200, A plurality of guide rollers 130 installed along the rear end of the main frame 110 to guide the conveyance of the extrudate toward the cut part 200 in a direction perpendicular to the conveyance roller 120, A first pedestal formed at a rear end of the main frame 110 and formed of a flat plate having a predetermined height so as to prevent debris generated in the cutting process from being splashed and a flat plate having a predetermined height, The rear end of the main frame 110 is spaced from the first pedestal 140 at a predetermined interval (that is, at a distance such that the cutting edge can pass) so that the cutting edge 210 of the cut- It may include a second base 150 that is installed.

Here, the conveying roller 120 is not only capable of manually conveying the extrudate in response to the user pressing or pulling the extrudate, but also has a driving device such as a step motor itself, It is possible to actively convey the extrudate in the direction of the cut part 200 after sensing the placement of the extrudate.

The cut portion 200 is connected to the rear end of the other side of the feed portion 100 so that the extrudate conveyed by the feed portion 100 can be cut using the cutter blade 210.

The user may perform a post-cutting operation or the like located at the left side with respect to the cut portion 200 and may perform a post cutting operation or the like at a predetermined height (for example, 5 cm to 20 cm) so as to effectively prevent splashing of the extrudate in the user direction. The first pedestal 140 may be formed on the front side of the cut-off portion 200.

In one embodiment, cut 200 may include a cutting edge 210 for cutting the extrudate.

At this time, the cutting blade 210 can be changed variously according to the kind of the extrudate, and the shape of the blade can be deformed according to the type of the extrudate as described later with reference to FIG.

The position adjuster 300 is connected to the rear end of the cutter 200 so as to move the cutter 200 in the forward or backward direction or the up and down direction and allows the user to pull and move the cutter 200 in the direction of the extrudate A lifting valve having a handle 310 formed at a front end thereof and a body for forming a screw thread so that the user rotates clockwise or counterclockwise to move the cutter 200 in the vertical direction in the main frame 110, (320) is formed on the upper part.

The dust collecting part 400 is mounted on the lower rear end of the cutting part 200 so as to suck the debris generated in the cutting process of the extrudate.

In an embodiment, the dust collecting part 400 is connected to an externally installed suction device (for example, a compression pump or the like) to absorb debris of the extrudate falling downwardly of the transfer part 100, It is possible to prevent debris from accumulating.

In one embodiment, the handle 310 may include an extension and a grip.

The extension part is formed in the shape of 'a' in the front end direction from the front end of the position adjusting part 300 and forms a grip part for pulling after the user grasps the hand by one hand.

The gripping part is made of a high density polyethylene resin (HDPE) 110 to 130 parts by weight based on 100 parts by weight of the polypropylene resin so as to radiate far-infrared rays for improving mechanical properties and twisting phenomenon for the user to grasp by hand, 1 to 10 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, sucrose (C12H22O11) 1 to 4 parts by weight of powder, 2 to 5 parts by weight of betaine, and 3 to 8 parts by weight of boehmite (AlO (OH)) and having a specific gravity of 1.02 to 1.10, And is manufactured in a cylindrical shape.

1 to 30 parts by weight of polyvinyl alcohol (PVA), 10 to 30 parts by weight of water, 5 to 30 parts by weight of calcium carbonate, 0.1 to 5 parts by weight of a surfactant 0.1 parts by weight of ethylene vinyl acetate (EVA) 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 and 10 to 30 parts by weight of water as a solvent (TDI), hydrogenated TDI, trimethyl propane-TDI, tripe- nylmethane-triisocyanate (TTI), diphenylmethane-diisocyanate (TDI) An isocyanate compound comprising at least one of diphenylmethane-4,4-diisocyanoate (MDI), hydrogenated MDI, and hexamethylene-diisocyanate (HDI) 1 to 20 parts by weight Is applied to the inner surface and then attached to the extended portion with the applied surface.

The plastic composition for producing the grip portion of the present invention may include a polypropylene resin, a high density polyethylene resin (HDPE), a talc and a 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 grip part 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, If the amount of the high-density polyethylene resin is less than 110 parts by weight or the amount of the talc is less than 170 parts by weight based on 100 parts by weight of the polypropylene resin, the mechanical properties such as durability and the like are limited. If it 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, the cork powder may be further included to improve the elasticity in fabricating the grip using the 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.

1 to 30 parts by weight of polyvinyl alcohol (PVA), 10 to 30 parts by weight of water, 5 to 30 parts by weight of calcium carbonate, 0.1 to 5 parts by weight of a surfactant 0.1 parts by weight based on 30 to 90 parts by weight of an ethylene vinyl acetate (EVA) 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 and 10 to 30 parts by weight of water as a solvent (TDI), hydrogenated TDI, trimethyl propane-TDI, tripe- nylmethane-triisocyanate (TTI), diphenylmethane-diisocyanate (TDI) An isocyanate compound comprising at least one of diphenylmethane-4,4-diisocyanoate (MDI), hydrogenated MDI, and hexamethylene-diisocyanate (HDI) 1 to 20 parts by weight The adhesive composition comprising the curing agent contained may be applied to the inner surface and attached to the extension.

In one embodiment, the adhesive composition used in attaching the grip portion is an adhesive composition comprising a topical and a curing agent, wherein the topical is a mixture of 30 to 90 parts by weight of an ethylene vinyl acetate (EVA) resin, 1 to 20 parts by weight of a polyvinyl alcohol (PVA) 30 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. The curing agent may include an isocyanate compound.

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 automatic extrusion cutting device 10 having the above-described structure can cut the extrudate to a length required by the user, while preventing cutting chips or the like from splashing in the user direction.

Fig. 2 is a view for explaining the cutting edge of Fig. 1. Fig.

2, the cutting edge 210 includes a rotary plate 211, a rotary blade 212, a plate 213, an adjusting hole 214, an adjusting blade 215, a fastening protrusion 216, 217 and a mating portion 218. [

The rotary plate 211 is formed in the form of a circular plate and has a plurality of rotary blades 212 for cutting the extrudate along the outer surface thereof and a control plate 213 is mounted on the front surface of the rotary plate 211, ).

A plurality of rotary blades 212 are formed along the outer surface of the rotary plate 211 and a knife blade as shown in FIG. 3 is formed together with the adjustment blade 215 connected to the front blade to cut the extrudate.

The adjustment plate 213 is formed in a disk shape corresponding to the rotation plate 211 and forms a plurality of adjustment holes 214 along the outer side and is fixed to the rotation plate 217 by fastening the fastening portion 217 and the body fastening portion 218. [ 211).

A plurality of adjustment holes 214 are formed along the outer side of the adjustment plate 213 and are formed at predetermined slopes (for example, 5 to 20 degrees) in the center direction of the adjustment plate 213, The lower side of the adjusting blade 215 (that is, the fastening protrusion 216) is connected and slidably moved in the oblique direction.

The adjustment blade 215 is formed in a shape corresponding to the shape of the rotary blade 212 to form a blade together with the rotary blade 212 as shown in FIG. And the upper inner side opposed to the rotary blade 212 is connected to the rotary blade 212 so that the fastening protrusion 216 formed at the lower side slides in the adjustment hole 214 as it is slid, do.

The fastening protrusion 216 is formed inside the lower portion of the adjusting blade 215 and is connected to the adjusting hole 214 to slide.

The coupling part 217 and the coupled part 218 are connected to each other so that the rotation plate 211 and the control plate 213 are rotatable to form a rotation axis.

3, which is a cross-sectional view of the cutting edge 210, the rotary blade 212 engages with the adjustment blade 215 to form a blade as a whole and has a rotary blade 212 and an adjusting blade 215 And a pivotal connection member for pivotal connection.

4, when the rotary blade 212 and the adjustment blade 215 are opposed to each other, they are superposed on each other to form a single blade, and the lower part of the adjustment blade 215 is connected to the adjustment hole 214 (I.e., a space located at the lower side).

As the throttle 213 rotates, the adjusting hole 214 also rotates so that the engaging protrusion 216 formed at the lower portion of the adjusting blade 215 moves along the adjusting hole 214 in the other direction of the adjusting hole 214 The adjusting blade 215 is lifted upwards in correspondence to the inclination of the adjusting hole 214 so that the upper part of the adjusting blade 215 is connected to the rotating blade 212 in a rotatable manner, 215).

4, the width of the blade formed by the rotary blade 212 and the adjustment blade 215 is narrow. On the other hand, when the adjustment blade 215 rotates, It can be seen that the width of the blade by the blade 215 becomes wider.

Accordingly, since the cutting blade 210 having the above-described configuration varies the width of the blade in various ways corresponding to the needs of the user, it is possible to provide various types of blades corresponding to the kind of the extrudate, By overcoming the disadvantages of the cutting edges, it is possible to help cut various kinds of extrudates at low cost.

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: Automatic extrusion cutting device 100:
110: Main frame 120: Feed roller
130: guide roller 140: first stand
150: second pedestal 200:
210: cutting blade 211: spindle
212: rotating blade 213: throttle plate
214: Adjusting hole 215: Adjusting blade
216: fastening protrusion 217: fastening portion
218: mating part 300: position adjusting part
310: handle 320: lifting valve
400: dust collecting part

Claims (2)

A conveyance part forming a skeleton with the main frame and conveying the uppermost placed extrudate from one side to the other side;
A cutting part connected to a rear end of the other side of the conveyance part so as to cut an extrudate conveyed by the conveyance part;
A knob is provided at the front end so that the user can pull the cut portion in the direction of the extrudate and the knob is moved in the clockwise or counterclockwise direction so that the user can move the knife in the forward or backward direction or the vertical direction, A position adjusting unit for forming a lifting valve on the upper part of the main frame so as to move the cut part in a vertical direction by rotating the main body in a clockwise direction; And
And a dust collecting part mounted on a lower rear end of the cutting part so as to suck debris generated in the cutting process of the extrudate,
The conveying unit includes a plurality of conveying rollers arranged in an inner space of the main frame to horizontally heat each other so as to convey the extrudate placed on the upper part in the direction of the cutter, A plurality of guide rollers installed along the rear end of the main frame in a direction perpendicular to the conveying rollers to form a flat plate having a predetermined height to prevent debris generated during the cutting process of the extrudate, A first pedestal provided at a rear end of the first pedestal and a flat plate having a predetermined height, the first pedestal being disposed at a predetermined interval from the first pedestal so that the cutting edge of the cut- And a second pedestal installed at a rear end of the second pedestal,
The handle
An extension extending from the front end of the position regulating part in the " a " form in the front end direction; And
110 to 130 parts by weight of a high-density polyethylene resin (HDPE) is added to 100 parts by weight of a polypropylene resin so as to emit a far-infrared ray to improve mechanical properties and twisting phenomenon and to promote the metabolism of the body, (C12H22O11) powder, 1 to 10 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, 4 to 8 parts by weight of boehmite (AlO (OH)) and having a specific gravity of 1.02 to 1.10, and having a cylindrical shape having an inner diameter corresponding to the outer diameter of the extended portion 1 to 30 parts by weight of polyvinyl alcohol (PVA), 10 to 30 parts by weight of water, 5 to 30 parts by weight of calcium carbonate, 0.1 to 5 parts by weight of a surfactant, 1 part by weight, thixotropic imparting agent 1 20 to 30 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 and 10 to 30 parts by weight of water as a solvent, toluene-diisocyanate toluene diisocyanate (TDI), hydrogenated TDI, trimethyl propane-TDI, tripehnylmethane-triisocyanate (TTI), diphenylmethane-4-diisocyanate , Isocyanate compound containing at least one component selected from the group consisting of 4-diisocyanoate (MDI), hydrogenated MDI, and hexamethylene-diisocyanate (HDI), and is contained in an amount of 1 to 20 parts by weight based on 100 parts by weight of the subject And a grip portion attached to the extended portion by applying an adhesive composition comprising a curing agent
, Automatic feed cutting device for extruded products.
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