KR101990638B1 - Mixing device - Google Patents

Abstract

The present invention relates to a mixing device designed to keep the generation of a mixture and the flow of an emulsified mixture continuous. The mixing device forms an internal space for stirring materials consisting of the mixture, and comprises a main body portion having an opening and closing portion on a lower part to discharge the stirred mixture.

Description

Compounding Equipment {MIXING DEVICE}

The present invention relates to a blending device, and more particularly, to a blending device for maintaining the flow of the mixture and the emulsified mixture of asphalt concrete, concrete and the like.

Asphalt concrete (asphalt concrete) is a mixture of aggregates such as sand and gravel with melted asphalt, and is a construction material for road pavement. In modern society, the importance of asphalt and concrete is absolute, and structures formed of asphalt and concrete can be found everywhere, including houses, roads, bridges, skyscrapers, and dams. Such a method of manufacturing asphalt concrete, a heated manufacturing method for producing asphalt concrete by applying heat to the materials including asphalt concrete, and a room temperature manufacturing method for manufacturing by adding an emulsifier at room temperature without heating the materials including waste ascon There is this.

In the normal temperature manufacturing method, the conventional technology is that the emulsion asphalt introduced into the emulsion asphalt storage tank is continuously supplied and stopped for a certain time, thereby solidifying and sedimenting to solidify in the emulsion asphalt storage tank and the connecting pipe. There was a problem.

In addition, the conventional asphalt manufacturing equipment is a fluid material (water and admixture) is directly supplied into the mixer and mixed with the solid material (cement + sand + aggregate), so the mixing of water and admixture is not easy, it takes a lot of mixing time, Problems such as deterioration of product quality have occurred.

On the other hand, the background art described above is technical information possessed by the inventors for the derivation of the present invention or acquired in the derivation process of the present invention, and is not necessarily a publicly known technique disclosed to the general public before the application of the present invention. .

Korea Patent Registration No. 10-1843048

One aspect of the present invention provides a blending apparatus implemented to manufacture asphalt concrete that can uniformly stir the raw materials of the mixture of asphalt concrete, concrete, etc., thereby improving the quality and providing a uniform quality.

In addition, according to the present invention, it is possible to absorb the shock and vibration caused by the movement of the actuator member formed in the opening and closing portion through the elastic member, to provide a compounding device with high stability of the device.

In addition, according to the present invention, it provides a compounding device to improve the durability of the device by protecting the body from the impact and moisture generated in the stirred material through a protective portion coupled to the inner peripheral surface of the body portion.

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

Mixing apparatus according to an embodiment of the present invention, the inner space for stirring the materials constituting the mixture, and comprises a main body portion is formed in the lower opening and closing portion for discharging the mixture is completed.

In one embodiment, at least one stirring unit is installed in the inner space of the main body to agitate the material supplied to the inner space of the main body; And a protection part coupled to at least one region of the inner circumferential surface of the main body part to protect the main body part from impact and moisture, wherein the stirring part includes a rotation shaft extending in the longitudinal direction of the main body part; A plurality of disks coupled to the rotating shaft and interlocked with the rotating motion of the rotating shaft; A connecting shaft connecting the plurality of disks; And a plurality of rotary vanes positioned between the plurality of disks and agitating materials contained in the inner space of the main body unit in association with a rotational movement of the rotary shaft, wherein some of the plurality of rotary vanes are inclined rotation. It is formed by a wing, and the other part is formed of a planar rotary blade that is formed shorter than the length of the inclined rotary blade, the opening and closing portion, at least one region is formed in connection with the lower portion of the main body portion, a through hole is formed to discharge the mixture Guide member for guiding the; A cover member for opening and closing the through hole of the guide member; A support member protruding from at least one region of the guide member and including a hinge structure; An actuator member hinged to the support member and having one end coupled to the cover member to push or pull the cover member; And an elastic member spaced apart from an opposite end of the actuator member, the elastic member absorbing shocks and vibrations caused by movement of the actuator member, the elastic member comprising: a support frame supporting the actuator member; Four support plates to support the support frame seated on the upper side, and to reduce the vibration or shock by sliding the left and right or up and down directions by the elastic force in response to the vibration or shock transmitted from the support frame; Two frames of the first frame and the second frame are rotatably installed at each lower portion of the four support plates to support the support plate, and adjust the length of the first frame or the second frame to A support frame for determining a support position of the support frame by the support plate; And a lower portion of the first frame is connected to the upper side to allow rotation and horizontal sliding movement, and a lower portion of the second frame is connected to and installed on the one side to enable rotation and vertical sliding movement. Or a support column for absorbing vibration or shock through elastic force of the cross elastic part or the vertical elastic part during the sliding movement of the second frame, wherein the protective part is coupled to at least one region of the inner circumferential surface of the main body part and includes an inorganic elastic waterproof material. A first sheet layer comprising; A plurality of waterproof sheets of metal material disposed on the first sheet layer; A soft magnetic joint layer attached to at least one of a joint upper end and a joint lower end between the waterproof sheets; And a second sheet layer formed on the waterproof sheet and made of an inorganic elastic waterproof material. And a coating layer formed on the second sheet layer to protect the second sheet layer from external magnetic poles. A soft buffer disposed between the plurality of waterproof sheets and an adhesive composition applied to at least one region of the waterproof sheet and fixedly bonding the waterproof sheet, wherein the adhesive composition comprises 40 to 80 parts by weight of a thermoplastic resin, 5 to 40 parts by weight of the tackifier resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of plasticizer, 1 to 10 parts by weight of filler, 0.1 to 1 parts by weight of antioxidant, and 0.1 to 5 parts by weight of nanosilica.

In one embodiment, the actuator member, the housing module through the both ends to have a receiving space therein; A first rod module inserted into the accommodation space through one end of the housing module; A second rod module inserted into the accommodation space through the other end of the housing module; A rotation module formed between the first rod module and the second rod module; A connection module interconnecting the first rod module and the second rod module in an accommodation space of the housing module; A pressure supply module supplying pressure to the working oil filled in the accommodation space of the housing module; And at least one manure module coupled to the connection module and including a plurality of apertures to reduce the vortex of the hydraulic oil. A cooling module formed inside the housing module and including a cooling water for controlling a temperature of the hydraulic oil; And a control module for rotating the rotary module in the first direction when the external discharge command of the first rod module is input, and rotating the rotary module in the second direction when the external discharge command of the second rod module is input. When the first rod module is discharged to the outside of the housing module, the control module inserts the second rod module into the housing module by the connection module, and the second rod module is the housing module. When the first rod module is inserted into the housing module by the connection module when discharged to the outside of the housing module, the volume occupied by the first rod module and the second rod module in the housing module inner space is constant. Keep it up,

The cooling module, at least one body formed of a circular tube; A plurality of storage modules formed in at least one region of the punch part and disposed above the body; And a plurality of connection modules configured to connect each of the storage modules to the body and coolant received in the plurality of storage modules, wherein the plurality of connection modules are connected to the storage module and perpendicular to one surface of the body. A first connector extending in one direction; A second connecting tube connected to the first connecting tube and extending at least partially in a direction parallel to the first connecting tube; And a third connecting pipe connected to the second connecting pipe and extending at least partially in a direction parallel to one surface of the body, wherein the first connecting pipe and the second connecting pipe are alternately disposed on the storage module. Each of the first connector and the second connector is located in a different radial direction on the storage module, and the first connector is located in a radial direction r1 that is relatively closer to the inlet or outlet side. The second connecting pipe is located in the radial direction (r2) further distant from the inlet or outlet side, the cooling water is 1000 parts by weight of ion alkaline water; And 35 to 55 parts by weight of amethyst, 5 to 10 parts by weight of feldspar, and 35 to 55 parts by weight of precious stone, based on 1000 parts by weight of the ion alkaline water, and 20 to 40 parts by weight of tourmaline powder based on 1000 parts by weight of the ion alkaline water. And 20 to 35 parts by weight of jade, 4 to 8 parts by weight of silicate, 4 to 8 parts by weight of calcium, and 4 to 8 parts by weight of tungsten, and 10 to 15 parts by weight of elvanite with respect to 1000 parts by weight of the ion alkali water. 1 to 10 parts by weight of a rust preventive agent, 1 to 10 parts by weight of an antifoaming agent, and 1 to 10 parts by weight of a surfactant, and the ratio of the amethyst, the feldspar, and the earstone is 1000 parts by weight of the ion alkaline water, based on 1000 parts by weight of ion alkaline water. 45 parts by weight of amethyst, 7.5 parts by weight of serpentine, and 45 parts by weight of precious earstone.

According to one aspect of the present invention described above, it is possible to uniformly stir materials such as water, admixtures, cement, aggregate, asphalt, etc. to provide an effect of producing a mixture of uniform quality.

In addition, according to the present invention, it is possible to absorb the shock and vibration caused by the movement of the actuator member formed in the opening and closing portion through the elastic member, it is possible to increase the stability of the device.

In addition, according to the present invention, it is possible to improve the durability of the device by protecting the body from the impact and moisture generated in the stirred material through the protective portion coupled to the inner peripheral surface of the body portion.

1 to 3 show a schematic configuration of a blending apparatus according to an embodiment of the present invention.
Figure 4 shows a stirring unit according to an embodiment of the present invention.
5 and 6 show the opening and closing portion according to an embodiment of the present invention.
7 illustrates a protection unit according to an embodiment of the present invention.
8 is a view showing an elastic member according to an embodiment of the present invention.
9 and 10 are views illustrating the support pillar of FIG. 8.
FIG. 11 is a view illustrating the cross elastic part of FIG. 9.
FIG. 12 is a view showing the vertical elastic part of FIG. 10.
13 illustrates an actuator member according to an embodiment of the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, 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 shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

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

1 to 3 show a schematic configuration of a blending apparatus according to an embodiment of the present invention.

1 to 3, the blending apparatus 10 according to an embodiment of the present invention includes a main body 100, a stirring unit 230, an opening and closing unit 300, and a protection unit 400.

The mixer main body 100 is supplied with materials such as water, admixture, cement, aggregate, asphalt, etc. necessary for the preparation of the mixture from the upper side and accommodated in the inner space, and received by the at least one stirring unit 230 installed in the inner space. The materials are stirred to make a mixture. The main body part 100 includes a supply part 110, a window part 120, and a footrest part 130. The supply unit 110 is configured to supply the material of the mixture into the main body 100, and may be formed corresponding to the types of materials such as water, admixture, cement, aggregate, and asphalt, which are the materials of the mixture. The window 120 opens or closes the inner space of the main body 100 so that the mixing degree of the mixture can be checked or the material additionally required during the mixing process can be introduced into the inner space of the main body 100. The footrest unit 130 allows the user to go up and look into the inner space of the main body 110 through the window unit 120, and when the user descends after completing the work, the footrest 130 is folded upward to utilize the space. To help. The mixture may be a construction material such as asphalt concrete, concrete.

The stirring unit 230 is installed and rotated in the inner space of the mixer main body 100 so as to stir materials supplied into the inner space of the mixer main body 100.

Opening and closing part 300 may be formed in the lower portion of the main body 100 to discharge the mixture is complete stirring. Opening and closing unit 300 may be discharged by adjusting the amount of the mixture by the transportable vehicle amount.

The protection part 400 is coupled to at least one region of the inner circumferential surface of the main body part 100 to protect the main body part 100 from impact and moisture generated in the material supplied into the main body part 100.

In this case, as shown in FIG. 3, the transport vehicle may be positioned below the opening and closing unit 300, and a hopper 600 may be formed to decrease in diameter toward the lower direction, and the transport vehicle may be formed along the opening and closing unit 300. The mixture can be led in the direction of the inlet.

According to the embodiment, the mixing device 10 having the above-described configuration, by uniformly stirring materials such as water, admixture, cement, aggregate, slag fine powder and fly ash to produce concrete or ready-mixed concrete of uniform quality can do.

Figure 4 shows a stirring unit according to an embodiment of the present invention.

Referring to FIG. 4, the stirring unit 230 may include a rotating shaft 231, a disk 232, a connecting shaft 234, and a rotating blade 235. The rotating shaft 231 may rotate, and the outer circumferential surface of the rotating shaft 231 may be combined with the disk 232. A plurality of disks 232 may be coupled to the rotating shaft 231, and may rotate in conjunction with the rotating movement of the rotating shaft 231. The disk 232 may include at least one connecting hole 233 formed at regular intervals along the circumference of the disk 232, and the connecting hole 233 may accommodate the connecting shaft 234. The disk 232 may be coupled to the rotation shaft 231 at regular intervals. The disk 232 may be formed in a circular shape, but this is merely exemplary and may be formed in various shapes according to embodiments, such as polygons, ellipses, and the like. The connecting shaft 234 may connect the plurality of disks 232. The connecting shaft 234 may be accommodated in the connecting holes 233 formed in the plurality of disks 232, and thus the plurality of connecting holes 233 formed in the plurality of disks 232 are arranged on the same axis. Can be formed. The plurality of disks 232 may include four connecting holes 233, and through the connecting shaft 231, each connecting hole 233 formed in the plurality of disks 232 coincides on the same axis. Can be formed. However, this is merely exemplary, and according to an embodiment, the connection holes 233 formed in each of the plurality of disks 232 may not be formed on the same axis, and the connection holes 233 that do not engage with the connection shaft 234. ) May be formed. The plurality of rotary vanes 235 may be coupled to the connecting shaft 234, and may be positioned between the plurality of disks 232. The rotary blade 235 is coupled to the connecting shaft 234, so that when the rotating shaft 231 starts the rotary motion, the rotary blade 235 can rotate with the connecting shaft 234. Specifically, the rotary blade 235 may be formed of an inclined rotary blade 235 'and a flat rotary blade 235 ". Here, the flat rotary blade 235" is formed in a flat plate shape, the rotary shaft 231 It may be formed long in the direction perpendicular to the. The inclined rotary blade 235 ′ may mean a rotary blade including an inclined surface having a direction of the planar rotary blade 235 ″ and a predetermined angle α (eg, 45 °). It may be formed at a predetermined angle that is not perpendicular to the rotation axis 231. The length of the planar rotary blade 235 "may be formed longer than the length of the inclined rotary blade 235 '. In addition, the rotary blade 235 may be formed of a coupling portion 235_1 and a wing surface 235_2. A through hole (not shown) may be formed in one region of the coupling portion 235_1, through which the wing surface 235_2 may be freely rotated with respect to the connecting shaft 234. By freely rotating the blade surface 235_2 with respect to the second connecting shaft 234, the load transmitted to the stirring unit 230 can be reduced, thereby preventing breakage of the stirring unit 230 and excessive power consumption. The mixture materials contained in the inner space of the main body 100 are stirred.

5 and 6 show the opening and closing portion according to an embodiment of the present invention.

5 and 6, the opening portion 300 according to an embodiment of the present invention is the guide member 310, the cover member 320, the support member 330, the actuator member 340 and the elastic member 500.

At least one region of the guide member 310 is formed to be connected to the lower portion of the main body 100, and a through hole is formed to guide the discharge of the mixture after the stirring operation is completed. The guide member 310 may be formed in a configuration inclined toward the through hole to more smoothly guide the discharge of the mixture.

Cover member 320 is configured to open and close the through hole of the guide member 310, it may be formed larger than the size of the through hole. The cover member 320 may adjust the discharge amount of the mixture is stirred by opening and closing the through hole.

The support member 330 protrudes from at least one region of the outer circumferential surface of the guide member 310 and may include a hinge structure. The support member 330 assists the movement of the actuator member 340 which will be described later, and can stably support the actuator member 340 when the actuator member 340 is operated.

The actuator member 340 is hinged to the support member 340, one end is coupled to the cover member 310 to push or pull the cover member, thereby controlling the opening and closing of the opening and closing part 300.

The elastic member 500 is formed spaced apart from the opposite end of the actuator member 340, and absorbs the shock and vibration caused by the movement of the actuator member 340.

7 illustrates a protection unit according to an embodiment of the present invention.

The protection part 400 according to an embodiment of the present invention includes a first sheet layer 410, a waterproof sheet 420, a magnetic joint layer 430, a second sheet layer 440, a coating layer 450, and a buffer part. 460 and the adhesive composition (not shown).

The first sheet layer 410 may be made of an inorganic elastic waterproof material, thereby improving weather resistance, corrosion resistance, durability, and the like of the waterproof sheet 420. The inorganic elastic waterproofing material is composed of a special copolymer emulsion and a cement-based special combination aggregate as main components, for example, a styrene-butyl acrylate copolymer (STYRENE-BUTYL ACRYLATE COPOLYMER) emulsion and a cement powder (for example, a port It may be prepared by mixing the land cement, alumina, silica sand, antifoaming agent, reducing agent, etc.), or by adding water thereto.

The waterproof sheet 420 may be disposed on the first sheet layer 410 to function as a secondary waterproof layer. For example, the waterproof sheet 420 may be made of metal, such as iron, aluminum, stainless steel, or chromium, and may be formed of a thin panel. The waterproof sheet 420 may protect the lower first sheet layer 410 and cope with external impact. In particular, the waterproof sheet 420 may be configured in plural and may be continuously disposed on the first sheet layer 410. In this case, the magnetic joint layer 430 is disposed at the joint between the waterproof sheets 420 to correspond to the stress behavior of the waterproof sheet 420 and maintain airtightness.

The magnetic joint layer 430 may be made soft, such as a rubber magnet, and may be attached to the joint between the waterproof sheets 420 to seal the joint. Here, the joint between the waterproof sheets 420 is a surface in which the continuous waterproof sheets 420 contact each other, and includes a space spaced within a predetermined distance. The magnetic joint layer 430 may be attached to the bottom of the joint and the top of the joint between the waterproof sheets 420 to seal the joint. In addition, the magnetic joint layer 430 is magnetic, and can be easily and stably attached to the waterproof sheet 420 made of metal.

The second sheet layer 440 may be made of the same inorganic elastic waterproof material as the first sheet layer 410, and in particular, the second sheet layer 440 may discharge water vapor to the outside. The waterproof sheet 420 may be prevented from being corroded due to moisture inside.

The coating layer 450 is formed on the second sheet layer 440 to protect the second sheet layer 440 from external stimuli.

The buffer unit 460 is disposed between the plurality of waterproof sheets 420, and may be formed of, for example, a soft material such as rubber. By being disposed between the waterproof sheets 420, it is possible to absorb the behavior in the horizontal direction of the waterproof sheet 420, and to maintain the structure of the protection unit 400 more firmly. In particular, even when the soft cushioning portion 460 is contracted / expanded by the waterproof sheet 420, the airtightness can be continuously maintained by the magnetic joint layer 430 fluidly attached at the top and bottom of the buffer portion 460. .

 The adhesive composition (not shown) is applied to at least one region of the protective part 400 configuration so that the first sheet layer 410, the waterproof sheet 420, the magnetic joint layer 430, the second sheet layer 440, and the coating layer At least one of the 450 and the buffer unit 460 may be stably fixed. Adhesive composition according to an embodiment of the present invention, 40 to 80 parts by weight of thermoplastic resin, 5 to 40 parts by weight of adhesive resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of plasticizer, 1 to 10 parts by weight of filler Contains 0.1 to 1 parts by weight of antioxidant. The present invention is a hot melt adhesive composition, generally manufactured in a state of being bonded between the release agent and the silicone band, it serves to make the silicone band attached to the fabric by performing a press operation after removing the release agent when applied to the fabric. Hereinafter, each component will be described in detail.

The thermoplastic resin serves as a main component of the composition to control adhesion and cohesion. If the type includes a vinyl group or a hydroxyl group, the type is not particularly limited, and examples thereof include ethylene vinyl acetate copolymer, polyvinylacetate, polyvinyl alcohol, ethylene-acrylic acid copolymer and ethylene-methacrylic acid copolymer, and polyurethane. It may be composed of any one or more selected from the group consisting of.

The content of the thermoplastic resin is preferably 40 to 80 parts by weight based on the total composition. If the content is less than 40 parts by weight, the melt viscosity is high and the melt flow index is low, the workability is very poor, if the content is more than 80 parts by weight it is difficult to exert sufficient adhesive force to be applied directly to the fabric.

The tackifier resin is a low molecular weight resin, lowers the melt viscosity to improve workability, improves the initial wettability of adhesion and adhesion of the adhesive on the surface of the adherend, and enables control of the solidification time.

The tackifying resin is not particularly limited in kind, but is preferably a petroleum resin. More specifically, the tackifier resin may be composed of one or more selected from the group consisting of aliphatic hydrocarbon resins, alicyclic hydrocarbon resins, aromatic hydrocarbon resins, aromatic hydrocarbon-modified aliphatic hydrocarbon resins, and hydrogenated hydrocarbon resins.

The aliphatic hydrocarbon resins are commercial products such as Hikorez A-1100, Hikorez A-1100S, Hikorez C-1100, Hikorez R-1100, Hikorez R-1100S, and the like. In addition, alicyclic hydrocarbon resins include hydrocarbon resins containing dicyclopentadiene (DCPD) as monomers, and aromatic hydrocarbon resins are commercially available from Kolon Oil Co., Ltd. of Hikotack P-110S, Hikotack P-120, Hikotack P-120HS, Hikotack P-120S, Hikotack P-140, Hikotack P-140M, Hikotack P-150, Hikotack P-160, Hikotack P-90, Hikotack P-90S, Hirenol PL-1000, Hirenol PL-400. In addition, aromatic hydrocarbon-modified aliphatic hydrocarbon resins include Hikorez T-1080, Hikorez T-1100, etc. of Kolon Oils. Hydrogenated hydrocarbon resins can also be subdivided into hydrogenated aliphatic hydrocarbon resins, hydrogenated aromatic hydrocarbon resins, and the like, and commercially available from Kolon Oil, Sukorez D-300, Sukorez D-390, Sukorez SU-100, Sukorez SU-110, Sukorez SU-120, Sukorez SU-130 and Sukorez SU-90.

The tackifier resin is preferably a hydrocarbon resin having 4 to 10 carbon atoms in the monomer, and specifically, a C5 aliphatic resin, a C9 aromatic resin, a C5 / C9 aliphatic / aromatic copolymer resin, or the like may be used.

In addition, the tackifying resin of the present invention is more preferably characterized in that the hydrocarbon hydrocarbon resin containing dicyclopentadiene as a monomer, commercially available from Sukorez D-300, Sukorez D-390, Kolon Emulsifier (Korea), Sukorez SU-100, Sukorez SU-110, Sukorez SU-120, SukorezSU-130 and Sukorez SU-90.

On the other hand, the adhesive composition of the present invention, in order to minimize the irritation as much as applied to the part directly in contact with the skin, it is preferable to use a mixture of biodegradable hypoallergenic resin in the various petroleum resin described above.

The biodegradable hypoallergenic resin may be prepared by melt-mixing a monomer of a polymer into a biodegradable polymer, and polylactic acid is preferably used as the biodegradable polymer.

The polylactic acid is a polyester synthesized by polycondensation of lactate or ring-opening polymerization of lactide, and has a medium physical property between polyamide and polyethylene terephthalate, and is mainly made of natural vegetable sugar components obtained from potatoes and corn. Biodegradability is high, but generally has high hardness, low elasticity, and poor durability.

The biodegradable polymer is melt-mixed with the same polymer monomer, wherein the biodegradable polymer is partially bonded with the monomer to cause chain breakage, thereby lowering the overall number average molecular weight. As the number average molecular weight falls, the physical properties that can be used as an adhesive are exhibited, and the workability is increased.

With respect to 100 parts by weight of the polylactic acid, the lactic acid monomer may be mixed 20 to 30 parts by weight. When the monomer is mixed in less than 20 parts by weight, the number average molecular weight is high and hard to be used as a pressure-sensitive adhesive, when the monomer exceeds 40 parts by weight migration may occur on the surface and may also be difficult to use as an adhesive.

It is preferable that the mixing ratio of the petroleum resin and the biodegradable hypoallergenic resin is 1 to 2: 1 (w / w). When the mixing ratio of the petroleum resin is too high, the biodegradable hypoallergenic effect is less likely to occur. If the mixing ratio is too high, economic efficiency may be lowered and the overall adhesive effect may be lowered.

In addition, the content of the tackifying resin is preferably 5 to 40 parts by weight relative to the total composition. If the content is less than 5 parts by weight, the effect of lowering the melt viscosity due to the addition of the tackifying resin is insufficient, and there is a fear that the increase in the melt flow index is not so large that the workability may not be satisfactorily reached, and the content is more than 30 parts by weight. If the melt flow index increase rate due to the excess of the tackifier resin is not large, the economical efficiency is lowered and the content of the thermoplastic polymer is relatively reduced, thereby reducing the overall physical properties of the composition.

The rosin acts to improve the overall adhesion of the adhesive composition and is harmless to the human body and acts as a natural preservative. The content of the rosin is preferably 1 to 5 parts by weight based on the total composition. If the content is less than 1 part by weight, it is difficult to obtain an effect of improving the adhesive strength, and if the content exceeds 5 parts by weight, there is a problem in that the adhesion is increased during processing, making it difficult to process the product.

The plasticizer is used to impart flexibility and adhesion to the polymer, and the type of plasticizer according to the present invention is not particularly limited, and for example, sorbitol, ethylene glycol, glycerin, glycerin diacetate, and pentaerythritol It may consist of one or more selected from the group consisting of.

The amount of the plasticizer is preferably 1 to 10 parts by weight based on the total composition. If the content is less than 1 part by weight, the effect of the addition of the plasticizer is insignificant. If the content is more than 10 parts by weight, the economical efficiency may be reduced by excessive use of the plasticizer, and there is a concern that the overall physical properties of the adhesive may be lowered.

The filler is used to control the reinforcement and flow of the composition. The type of filler is not particularly limited, and for example, calcium carbonate, clay, bentonite, calcium stearate or the like can be used.

On the other hand, in the present invention, to control the reinforcement and flow of the adhesive composition while reducing odor and bacteria generation, it is preferable to use a mixture of stone powder and pulp powder as a filler. Stone powder can achieve high strength without using additives due to the compactness of the particles, and the cracking of the adhesive hardly occurs even when the temperature change is large due to low volumetric strain according to the surrounding environment.

The stone powder may be used in the form of powder of various rocks such as loess, marble, ganban stone, granite, jadeite, preferably characterized in that the loess has various functions such as antibacterial, anti-fungal, UV emission.

The pulp powder serves to agglomerate the stone powders while sucking the liquid components, to improve the miscibility and improve the cohesion between the components. At this time, the stone powder and the pulp powder is preferably mixed in a ratio of about 7: 3 to 8: 2 (w / w).

The content of the filler is preferably 1 to 10 parts by weight based on the total composition. If the content is less than 1 part by weight, the effect of adding the filler is insignificant, and if the content is more than 10 parts by weight, there is a concern that the overall physical properties of the adhesive may be lowered.

The antioxidant is intended to improve the change in viscosity, yellowing, deterioration of adhesion and degradation of durability due to oxidation and decomposition, and the type thereof is not particularly limited, and specifically, phenols, aromatic amines, citric acid, or ascorbic acid may be used. Can be.

The content of the antioxidant is preferably 0.1 to 1 parts by weight relative to the total composition. If the content is less than 0.1 part by weight, the effect of the addition of the antioxidant is insignificant, and if the content exceeds 1 part by weight, not only the economical efficiency of the adhesive is lowered but also the overall physical properties may be lowered.

On the other hand, the adhesive composition of the present invention is subjected to a press operation on the fabric, at this time, there is a possibility that the poor adhesion due to the amount of the composition is removed due to the presence of the hole in the fabric.

Thus, the adhesive composition of the present invention may further include a nano silica value that can improve the adhesion by allowing the adhesive composition to be uniformly distributed on the fabric surface. At this time, the content of the nano silica is preferably 0.1 to 5 parts by weight, and the size of the nano silica (primary particles) is preferably 100 nm or less.

If the content of the nano-silica is less than 0.1 parts by weight, the effect of the addition of nano-silica is insignificant, and if the content exceeds 5 parts by weight, not only the adhesive force is lowered but also a bad phenomenon that blooming (blooming) occurs on the surface of the adhesive over time May occur. Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail.

Example 1

60 parts by weight of ethylene-vinylacetate copolymer, 25 parts by weight of Sukorez D-300, 3 parts by weight of rosin, 5 parts by weight of ethylene glycol, 4 parts by weight of ocherite, 2 parts by weight of pulp powder and 1 part by weight of ascorbic acid. Melt kneading at ° C to prepare an adhesive composition and then molded into pellets. At this time, the biodegradable hypoallergenic resin was prepared by melt-mixing 2.5 parts by weight of lactic acid monomer to 100 parts by weight of polylactic acid at 160 ° C. for 5 minutes.

 Example 2

60 parts by weight of ethylene-vinylacetate copolymer, 15 parts by weight of Sukorez D-300, 10 parts by weight of biodegradable hypoallergenic resin, 3 parts by weight of rosin, 5 parts by weight of ethylene glycol, 4 parts by weight of loess, 2 parts by weight of pulp powder and ascorb 1 part by weight of acid was mixed and melt kneaded at 170 to 180 ° C. to prepare an adhesive composition, and then molded into pellets. At this time, the biodegradable hypoallergenic resin was prepared by melt-mixing 2.5 parts by weight of lactic acid monomer to 100 parts by weight of polylactic acid at 160 ° C. for 5 minutes.

Example 3

Except for adding 1 part by weight of nanosilica, it was prepared in the same manner as in Example 1, and was made as Example 3.

 [Comparative Example]

It was used after removing the backing paper from the conventional TPU hot melt film.

Experimental Example

(1) Mesh adhesive strength

In order to evaluate the mesh adhesive strength of the hot melt adhesive, the adhesive pellets quantitated between two pieces of overcoat fabrics were melt-coated at 170 ° C., and then pressed at a pressure of 60 kgf / cm 2 for 30 seconds at 130 ° C. Adhesive strength (kgf / cm 2) was measured.

 (2) Melt Flow Index

The heating cylinder of the melt flow rate meter was filled with a pellet type adhesive and melted at 160 ° C. for about 5 minutes. The weight (g) of the adhesive passed through the cylinder for 10 minutes was measured by putting a weight of 3 kg.

As can be seen from the table, it was confirmed that the adhesive composition of the present invention has improved adhesion and flow index than the existing product, even when using the biodegradable hypoallergenic resin was confirmed that the adhesion and flow index does not fall significantly. Also, when the nano-silica is mixed, the flow index can be seen to increase significantly.

8 is a view showing an elastic member according to an embodiment of the present invention.

Referring to FIG. 8, the elastic member 500 includes a support frame 540, four support plates 510, four pairs of support frames 520, and a support column 530.

The supporting frame 540 supports the main reinforcing bar 110 or the height adjusting member 200 using elastic force.

The supporting plate 510 supports the supporting frame 540 seated on the upper side and is supported by the supporting pillar 530 by the supporting frame 520 connected to the lower side.

That is, the supporting plate 510 seats the supporting frame 540 on the upper side thereof, and in response to the vibration or shock transmitted from the supporting frame 540, the supporting plate 510 is oriented in the horizontal direction (ie, the first frame 521a). Alternatively, vibration or shock may be attenuated by being absorbed by the support frame 520 sliding in the up and down direction (ie, the second frame 521b).

In addition, the present invention is formed by varying the length of the first frame (521a) or the second frame (521b), to overcome the limitations of the existing elastic body that can reduce the impact by simply adjusting the height in the vertical direction The support position by the plate 510 can be freely adjusted not only in the vertical direction but also in the left and right directions.

The support frame 520 is connected to rotatably two frames of the first frame 521a and the second frame 521b at each lower portion of the four support plates 510 to support the plate 510. As described above, the support position of the support frame 540 by the plate 510 is determined by adjusting the length of the first frame 521a or the second frame 521b.

At this time, the upper part of the first frame 521a and the second frame 521b is connected to the lower part of the support plate 510, and the lower part of the first frame 521a is rotated on the upper side of the support column 530. The lower surface of the second frame 521b is connected and installed to enable horizontal sliding movement, and the lower side of the second frame 521b is connected to one side of the support pillar 530 so as to allow rotational and vertical sliding movement.

That is, the first frame 521a or the second frame 521b may be subjected to vibration or shock transmitted from the support plate 510 through a pivoting or sliding movement by elastic force on the upper surface or one side of the support pillar 530. The support pillar 530 is transferred.

The support pillar 530 is formed in the shape of a square pillar, and the lower portion of the first frame 521a is connected to the upper side so as to be rotated and horizontally slidably moved, and the lower portion of the second frame 521b is one side. It is connected to the rotational and vertical sliding movement in the installation, and the elastic force (ie, the cross-elastic portion 533 or vertical elastic portion 535) during the sliding movement of the first frame (521a) or the second frame (521b) Absorbs vibrations or shocks through.

Each of the supporting plate 510 or the supporting frame 520 is driven by the same method as the symmetrical structure of each other, and the contents described with respect to the one supporting plate 510 or the supporting frame 520 as described above are described. The same may be applied to the other support plate 510 or the other support frame 520, the description thereof will be omitted.

In addition, the elastic member 500 having the above-described configuration may be formed in a vertically symmetrical structure, and the configuration associated with the four support plates 510 and the four support frames 520 may include a support pillar ( The same may be applied to the lower part of the 530.

9 and 10 are views illustrating the support pillar of FIG. 8.

9 and 10, the support pillar 530 includes a pillar body 531, a cross groove 532, a cross elastic portion 533, four vertical grooves 534, and four vertical elastic portions 535. ).

The pillar body 531 is formed in the shape of a square pillar, a cross groove 532 is formed on the upper portion, the vertical groove 534 is formed on each side.

The cross grooves 532 are recessed and formed in the upper portion of the pillar body 531 in a "+" shape, and a cross elastic portion 533 is inserted into the inner space.

The cross resilient portion 533 is formed in a shape corresponding to the shape of the cross groove 532 and is inserted into the cross groove 532, so that the lower side of the first frame 521a is rotatable on the upper ends of the four branches. It is connected and installed to absorb the vibration or shock transmitted from the first frame 521a by using the elastic force to attenuate the vibration or shock.

The vertical groove 534 is formed in each of the surface of the pillar body 531 in the vertical direction, the vertical elastic portion 535 is inserted into the interior space.

The vertical elastic portion 535 is formed in a shape corresponding to the shape of the vertical groove 534 is inserted into the vertical groove 534, the lower side of the second frame 521b is connected to the upper outer side so as to be rotatable and elastic force By absorbing the vibration or shock transmitted from the second frame 521b to reduce the vibration or shock.

FIG. 11 is a view illustrating the cross elastic part of FIG. 9.

Referring to FIG. 11, the cross elastic portion 533 includes a cross case portion 5313, an upper support portion 5332, four upper elastic portions 5333, four upper elastic supports 5332, and four upper connection links. A part 5335 is included.

The cross case portion 5313 has an inner space formed in an empty " + " shape and is inserted into the cross groove 532, and includes an upper support portion 5332, four upper elastic portions 5333, and four which are described later in the inner space. Top elastic support parts 5340 are installed.

At this time, the length of each branch of the cross case portion 5331 is shorter than the length of each branch of the cross groove 532, so that the upper connection link portion 5535 is formed in a space formed outside the cross case portion 5331. It should be possible to form a space for the arrangement and sliding movement.

The upper support part 5332 is formed of a cube, and is disposed at the center of the cross case part 5311, so that the upper elastic part 5333 is disposed outside each of the four surfaces, and supports the upper elastic part 5333. do.

The upper elastic part 5333 is disposed on each side surface of the upper support part 5332 to support the upper elastic support part 5340 by elastic force, thereby absorbing vibrations or shocks transmitted from the upper elastic support part 5344.

The upper elastic support part 5340 is disposed at each end of each branch of the internal space of the cross case part 5313, is supported by the elastic force of the upper elastic part 5333, and is provided between the upper connection link parts 5335. The upper connecting link portion 5335 is supported by the support bar 5336.

The upper link link portion 5335 is disposed at each end of each branch of the cross groove 532, and is provided between the side of the cross case portion 5313 and the support bar 5336 provided between the upper elastic support portion 5340. It is maintained at a predetermined interval by a), and the lower side of the first frame 521a is connected to the upper side so as to be rotatable, and each branch of the cross groove 532 meets in accordance with the vertical movement of the plate 510. Sliding along the groove of the cross groove 532 in the center direction.

FIG. 12 is a view showing the vertical elastic part of FIG. 10.

Referring to FIG. 12, the vertical elastic part 535 includes a vertical case part 5331, a side support part 5332, a side elastic part 5343, a side elastic support part 5344, and a side connection link part 5345. do.

The vertical case portion 5331 is formed in a shape corresponding to the shape of the vertical groove 534 in which the inner space is empty, and the side support portion 5332, the side elastic portion 5431, and the side elastic support portion 5344 are formed from the lower side of the inner space. ) Are installed in order.

The side support part 5332 is formed of a cube, is disposed in a lower space of the vertical case part 5331, and a side elastic part 5435 is disposed on the upper side to support the side elastic part 5435.

The side elastic part 5343 is disposed above the side support part 5332, and supports the side elastic support part 5344 disposed above by the elastic force, thereby preventing vibration, shock, and the like transmitted from the side elastic support part 5344. Will be absorbed.

The side elastic support part 5344 is disposed above the inner space of the vertical case part 5331, is supported by the elastic force of the side elastic part 5435, and is provided between the side connecting link parts 5345. It supports the side link link portion 5345 by.

The side link link portion 5345 is disposed at an upper end of the vertical groove 534 and is provided between a lower side facing the vertical case portion 5331 and an upper side of the side elastic support portion 5344. It is maintained at a predetermined interval by a), and the lower side of the second frame 521b is connected to the outer side so as to be rotatable, and slides along the groove of the vertical groove 534 in the lower direction of the vertical groove 534. .

13 illustrates an actuator member according to an embodiment of the present invention.

Referring to FIG. 13, the actuator member 340 according to an embodiment of the present invention includes a housing module 341, a first rod module 342, a second rod module 343, a rotation module 344, and a connection module. 345, a pressure supply module 346, a filtering module 347, a cooling module 348, and a control module 349.

The housing module 341 may have a shape in which both ends thereof are formed to have an accommodation space therein. For example, the housing module 341 may be in the form of a cylindrical body, and may be changed in various forms according to the embodiment. The inner accommodating space of the housing module 341 may be filled with the hydraulic oil B, and caps are formed at both ends of the housing module 341 to prevent the hydraulic oil B from leaking through the through holes of the housing module 341. can do.

The first rod module 342 may be inserted into the inner accommodating space through one end of the housing module 341, and the second rod module 343 is inserted into the inner accommodating space through the other end of the housing module 341. Can be. The first rod module 342 and the second rod module 343 may be implemented to have a constant cross section over the entire length to be used for compressing the fluid or transmitting the pressure.

The rotary module 344 is formed between the first rod module 342 and the second rod module 343. As an example, the rotation module 344 may be connected by the first motor 342-1 and the connection module 345 included in the first rod module 342 to control the operation of the first motor 342-1. Can rotate accordingly. At the same time, the rotation module 344 may be connected by the second motor 343-1 and the connection module 345 included in the second rod module 343 and rotate according to the operation of the second motor 343-1. can do. The rotary module 344 may be implemented in the form of a wing that causes a flow movement in the fluid by rotation. The rotary module 344 of FIG. 4 is an example of a watermill, and the rotary module 344 may be rotated, propeller type, furnace type, screw type, turbine type, and the like if the hydraulic oil can be moved around. It can be changed to form.

The connection module 345 interconnects the first rod module 342 and the second rod module 343 in the accommodation space of the housing module 341. Accordingly, the first rod module 342 and the second rod module 343 are coupled to each other to interlock and move in the accommodation space of the housing module 341.

The pressure supply module 346 supplies pressure to the hydraulic oil B filled in the accommodation space of the housing module 341. The pressure supply module 346 may be installed in one region of the housing module 341. As an example, the pressure supply module 346 may be formed of a small reservoir including air compressed at high pressure, and may transmit high pressure to the working oil B filled in the inner receiving space of the housing module. The pressure supplied by the pressure supply module 346 acts on the surface of the first rod module 342 or the second rod module 343, and adjusts the pressure so that the first rod module 342 and the first rod module 342 are adjusted. 2 the load module 343 can be operated. In addition, the pressure supply module 346 may provide a differential pressure supply to the hydraulic oil (B) according to the user's input, through which a load of various strengths may be applied to the handle.

The filtering module 347 is coupled to the connection module 345 and includes a plurality of through holes to reduce the vortex phenomenon of the hydraulic oil (B). The filter module 347 may have a predetermined angle (eg, 90 degrees) with a through direction of the inner receiving space of the housing module 341, and may be coupled to the connection module 345. The filtering module 347 may be formed in the form of a net including a plurality of through holes in order to reduce the vortex phenomenon of the hydraulic oil (B). The filtering module 347 suppresses the vortex of the hydraulic oil B generated by the rotation module 344 in the first direction or the second direction, and thus, the first rod module 342 and the second rod module 343. It is effective to enable smooth piston movement.

The cooling module 348 is formed inside the housing module 341 and includes a cooling water for controlling the temperature of the working oil (B). While the first rod module 342 and the second rod module 343 repeat the vertical reciprocating motion, the temperature of the hydraulic oil B may increase, and the cooling module 348 may set the temperature of the hydraulic oil B to a predetermined value or The accuracy of the test can be increased by keeping it within a certain range. For example, the cooling module 348 may be formed in the form of receiving a cooling water of a predetermined temperature from the outside or may be formed in a structure that can radiate the cooling water at a temperature rise.

In one embodiment, the cooling module 348 includes at least one body formed of a circular tube. In addition, it includes a plurality of storage modules disposed on the upper portion of the body, and comprises a plurality of connection modules configured to connect each of the storage modules to the body. Cooling water is accommodated inside the plurality of storage modules. The plurality of connection modules are connected to the storage module and are connected to the first connector extending in a direction perpendicular to one surface of the body, the second connector connected to the first connector and at least partially extending in a direction parallel to the first connector; And a third connector connected to the second connector and at least partially extending in a direction parallel to one surface of the body. The first and second connectors are alternately arranged on the storage module, each of the first and second connectors is located in a different radial direction on the storage module, the first connector being relatively inlet or outlet side. Located in the radial direction r1 closer to, the second connector can be located in the radial direction r2 relatively farther from the inlet or outlet side. Cooling water is accommodated in the plurality of storage modules 720, 35 to 55 parts by weight of amethyst, 5 to 10 parts by weight of feldspar, and 35 to 55 parts by weight of precious stone relative to 1000 parts by weight of ion alkaline water and 1000 parts by weight of ion alkali water. Contains wealth. It contains 20-40 weight part of tourmaline powder, 20-35 weight part of jade, 4-8 weight part of silicates, 4-8 weight part of calcium, and 4-8 weight part of tungstens, and 1000 weights of ion alkaline water with respect to 1000 weight part of ion alkaline waters It may include 10 to 15 parts by weight of ganguerite, and 1 to 10 parts by weight of rust preventive agent, 1 to 10 parts by weight of antifoaming agent and 1 to 10 parts by weight of surfactant based on 1000 parts by weight of ionic alkali water. Subsequently, the ratio of amethyst, pyrophyllite and ear stalactite can be produced with 45 parts by weight of amethyst, 7.5 parts by weight of sterly serpentine and 45 parts by weight of earstone, relative to 1000 parts by weight of ion alkaline water.

The control module 349 rotates the rotary module 344 in the first direction when the external discharge command of the first rod module 342 is input, and rotates the rotary module 344 when the external discharge command of the second rod module 343 is input. 344 is rotated in the second direction.

The first motor 342-1 and the second motor 343-1 may be driven by the control module 349, respectively, and the first motor 342-1 moves the rotation module 344 in the first direction. The second motor 343-1 may rotate the rotation module 344 in the second direction. When the rotary module 344 is rotated in the first direction by the control of the control module 349, the peripheral hydraulic oil B is moved to the lower end of the first rod module 342, so that the second rod module 343 is relatively rotated. The pressure (hydraulic pressure) of the hydraulic oil (B) applied to the upper end of the is reduced, the pressure applied to the lower end of the first rod module 342 is relatively greater than the pressure applied to the upper end of the second rod module 343. The first rod module 342 is moved upward and discharged to the outside of the housing module 341. At this time, the pressure supply module 346 may further supply pressure to the hydraulic oil (B) to make the movement more smoothly. On the contrary, when the rotary module 344 is rotated in the second direction by the control of the control module 349, the hydraulic oil B around is moved to increase the hydraulic pressure applied to the upper end of the second rod module 343. do. Accordingly, since the pressure applied to the upper end of the second rod module 343 is greater than the pressure applied to the first rod module 342, the second rod module 343 is moved downward to the outside of the housing module 341. To be discharged. At this time, the pressure supply module 346 may additionally supply pressure to the hydraulic oil B to make the movement more smooth, and at the same time, differentially supply pressure to the hydraulic oil B so as to correspond to a set pressure desired by the user.

In addition, when the first rod module 342 is discharged to the outside of the housing module 341, the second rod module 343 is inserted into the housing module 341 by the connection module 344, and the second rod When the module 343 is discharged to the outside of the housing module 341, the first rod module 342 is inserted into the housing module 341 by the connection module 344, thereby the interior of the housing module 341. The volume occupied by the first rod module 342 and the second rod module 343 in the accommodation space is kept constant. Specifically, when the first rod module 342 is discharged to the outside of the housing module 341 under the control of the control module 349, the second rod module 343 is connected to the housing module 341 by the connection module 344. It can be inserted inside. That is, as the first rod module 342 protrudes out of the housing module 341, the second rod module 343 coupled by the connection module 344 may be inserted into the housing module 341. On the contrary, when the second rod module 343 is discharged, the first rod module 342 may be inserted into the housing module 341 as the second rod module 343 protrudes out of the housing module 341. have. The first rod module 342 and the second rod module 343 are formed to enable the above operation, so that the first rod module 342 and the second rod module 343 in the inner receiving space of the housing module 341. And the volume occupied by the hydraulic fluid B may be additionally injected into the internal space of the housing module 341 even during the piston movement of the first rod module 342 and the second rod module 343. There is no need, and the piston movement can be performed in accordance with the internal pressure by the hydraulic oil (B).

The scope to be protected by the present specification is represented by the following claims rather than the above description, and should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

10: compounding device
100: main body
230: stirring section
300: opening and closing part
400: protection
500: elastic member
600: hopper

Claims (2)

A main body portion which forms an inner space for stirring the materials constituting the mixture, and an opening and closing portion for discharging the mixture having been stirred at the lower portion thereof;
At least one agitator provided in the inner space of the main body to stir materials supplied into the inner space of the main body; And
A protection part coupled to at least one region of an inner circumferential surface of the main body part to protect the main body part from impact and moisture;
The stirring unit, the rotating shaft extending in the longitudinal direction of the main body portion; A plurality of disks coupled to the rotating shaft and interlocked with the rotating motion of the rotating shaft; A connecting shaft connecting the plurality of disks; And a plurality of rotary vanes positioned between the plurality of disks and agitating materials contained in the inner space of the main body unit in association with a rotational movement of the rotary shaft, wherein some of the plurality of rotary vanes are inclined rotation. It is formed of a blade, the other part is formed of a plane rotating blade formed shorter than the length of the inclined rotary blade,
The opening and closing portion, at least one region is formed in connection with the lower portion of the main body portion, the guide member is formed through the guide to discharge the mixture; A cover member for opening and closing the through hole of the guide member; A support member protruding from at least one region of the guide member and including a hinge structure; An actuator member hinged to the support member and having one end coupled to the cover member to push or pull the cover member; And an elastic member spaced apart from an opposite end of the actuator member, the elastic member absorbing shock and vibration caused by movement of the actuator member.
The elastic member, the support frame for supporting the actuator member; Four support plates to support the support frame seated on the upper side, and to reduce the vibration or shock by sliding the left and right or up and down directions by the elastic force in response to the vibration or shock transmitted from the support frame; Two frames of the first frame and the second frame are rotatably installed at each lower portion of the four support plates to support the support plate, and adjust the length of the first frame or the second frame to A support frame for determining a support position of the support frame by the support plate; And a lower portion of the first frame is connected to the upper side to allow rotation and horizontal sliding movement, and a lower portion of the second frame is connected to and installed on the one side to enable rotation and vertical sliding movement. Or a support column for absorbing vibration or shock through elastic force of the cross elastic part or the vertical elastic part during the sliding movement of the second frame,
The protective part may include: a first sheet layer coupled to at least one region of an inner circumferential surface of the body part and including an inorganic elastic waterproof material; A plurality of waterproof sheets of metal material disposed on the first sheet layer; A soft magnetic joint layer attached to at least one of a joint upper end and a joint lower end between the waterproof sheets; And a second sheet layer formed on the waterproof sheet and made of an inorganic elastic waterproof material. And a coating layer formed on the second sheet layer to protect the second sheet layer from external magnetic poles. A soft buffer disposed between the plurality of waterproof sheets and an adhesive composition applied to at least one region of the waterproof sheet to fix and couple the waterproof sheet;
The adhesive composition, 40 to 80 parts by weight of thermoplastic resin, 5 to 40 parts by weight of tackifying resin, 1 to 5 parts by weight of rosin, 1 to 10 parts by weight of plasticizer, 1 to 10 parts by weight of filler and 0.1 to 1 parts by weight of antioxidant , Nanosilica containing 0.1 to 5 parts by weight, blending apparatus.

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