KR102057816B1 - Fabrics attachment device - Google Patents

Abstract

The present invention relates to a fabric attachment apparatus that can be implemented to attach two separate fabrics to a single fabric. The fabric attachment apparatus comprises: a fabric conveying unit transfers two fabrics by changing the direction by using a plurality of transfer rollers, and receives and attaches fabrics attached during a transfer process to transfer and load the same by using the plurality of transfer rollers; and a fabric attachment unit installed in area where two fabrics are gathered by the transfer rollers and attaching fabrics to each other by using ultrasonic waves.

Description

Fabric attachment device {FABRICS ATTACHMENT DEVICE}

The present invention relates to a fabric attachment device, and more particularly, to a fabric attachment device implemented to attach two separate fabrics into one fabric.

Fabric-like backsheets provide hygienic absorbent articles, such as diapers, adult incontinence products, to provide good barrier properties such as softness, and low noise while providing sufficient barrier properties to perform their main functions of containing fluids. It is becoming increasingly desirable for use in, and feminine hygiene articles. Fabric-like backsheets typically include a nonwoven substrate and a film laminated together, and depending on the lamination techniques involved, the texture of the backsheet may vary.

Many different lamination techniques exist for the bonding of films and nonwovens and may include, for example, extrusion coating, hot melt bonding, solventless bonding, ultrasonic bonding. Each lamination technique has its own peculiarities. In recent years, ultrasonic coupling has become a promising lamination technique for use in making backsheets, but this has its challenges.

In the case of the conventional fabric attachment techniques as described above, it is not possible to efficiently control the tension according to the movement of each fabric, so that the main shaft of the fabric is constant as the tension of one fabric of the plurality of fabrics is different from the tension of the other fabric It is not carried out, and thus has the problem that the result attached is not able to have a certain quality and eventually can be produced in defective products.

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. .

Korean Patent Publication No. 10-1997-0075100 Korean Utility Model Model No. 20-2011-0010116

One side of the present invention provides a fabric attachment device that is implemented by changing the conveying direction of the two fabrics using a plurality of rollers, the two fabrics can be attached using an ultrasonic coupler.

In addition, by using a free-falling roller provided separately provides a fabric attachment device implemented to adjust the transfer tension, which is the force to pull the new fabric attached to the two fabrics without a separate driving power.

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.

In one embodiment of the present invention, the fabric attachment device, the two fabrics are transported while changing the direction using a plurality of feed rollers, the fabric is attached to the transfer process in the transfer process using a plurality of transport rollers to load Fabric transfer unit; And it is installed in the part where the two fabrics are gathered by the transfer roller, and includes a fabric attachment portion for attaching the fabric to each other using ultrasonic waves.

In one embodiment, the fabric transfer unit, the first supply unit for supplying a first fabric; A second supply unit supplying a second fabric; Delivering the first fabric supplied from the first supply unit to the fabric attachment unit while changing the direction, and transferring the second fabric supplied from the second supply unit to the fabric attachment unit while changing the direction, and discharging from the fabric attachment unit A plurality of transfer rollers configured to receive and transfer the first and second fabrics to which the second fabric is attached; Scaffolding is installed in the space between the transfer roller so that the worker can work up; And a tension adjusting part installed at a rear end of the conveying roller and adjusting the tension of the third fabric conveyed through the conveying roller, wherein the tension adjusting part receives and rotates the third fabric from the conveying roller. A first roller for conveying; A second roller spaced apart from the first roller, the second roller receiving the third fabric from the first roller and rotating the same in the same direction as the first roller; A first guide frame and a second guide frame respectively installed on one side and the other side of the spaced apart space between the first roller and the second roller and formed in a C-shaped steel shape; And one side or the other side is inserted into the inner space of the first guide frame or the second guide frame, respectively, and is moved upward and downward, and is placed on an upper portion of the third fabric conveyed from the first roller to the second roller. And a tension control roller which presses in a direction to adjust the tension of the third fabric, wherein the first roller or the second roller transfers the third fabric by using frictional force of the outer surface of the roller, and the tension roller Free movement in the vertical direction in response to the conveying tension of the third fabric to be conveyed, is rotated by the friction force with the third fabric to be conveyed, the scaffold is formed in a rectangular plate-like form spaced apart from the ground, the user Is provided on the top to provide a space to work, the top plate is transferred to the third fabric through the space between the ground; And four legs extending downward from each corner of the upper plate and supporting the upper plate so that the upper plate can be spaced apart from the ground, wherein the fabric attaching part includes: a first fabric being conveyed through the feed roller; Ultrasonic generator for generating ultrasonic waves to the second fabric to attach to each other; And an embossing roller unit disposed opposite the ultrasonic generator at the lower side of the ultrasonic generator, and forming a protruding pattern along the outer surface of the roller to insert the embossed pattern into the fabric attached to each other.

According to one aspect of the present invention, by using a plurality of rollers to transfer the two fabrics while changing the transfer direction, by attaching the two fabrics using an ultrasonic coupler, it is possible to efficiently attach different kinds of fabrics Can be.

In addition, by adjusting the tension to pull the fabric without a separate drive power source, it is possible to generate the appropriate tension required for the transfer of the fabric.

1 is a view showing a schematic configuration of a fabric attachment apparatus according to an embodiment of the present invention.
Figure 2 is a view showing the far-end transfer of Figure 1;
3 and 4 are views showing the tension control of Figure 2;
5 is a view showing the scaffold of FIG.
6 is a view showing a fabric attachment portion of FIG.
7 is a view showing an embossed form formed by the embossing roller portion.
8 is a view illustrating the shock absorbing part of FIG. 4.
FIG. 9 is a view illustrating a first plate of FIG. 8.
10 is a flowchart illustrating a plastic sheet manufacturing method for producing a plastic sheet of the present invention.
FIG. 11 is a diagram illustrating another example of the scaffold of FIG. 5.

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 is a view showing a schematic configuration of a fabric attachment apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the fabric attachment device 10 according to an embodiment of the present invention includes a fabric conveyance unit 100 and a fabric attachment unit 200.

The fabric conveying unit 100 transfers two fabrics while changing directions using a plurality of feed rollers 130 (see FIG. 2), and receives the fabrics attached by the fabric attaching unit 200 in the conveying process. It transfers and loads using the some conveyance roller 130.

The fabric attachment part 200 is installed at a portion where two fabrics are gathered by the transport roller 130, and after the fabrics are attached to each other by using ultrasonic waves, the fabric attachment part 200 is transferred to the rear end direction of the present invention by the transport roller 130. Be sure to

The fabric attachment device 10 having the configuration as described above, by using a plurality of transfer rollers 130 to transfer the two fabrics while changing the transfer direction, using the fabric attachment portion 200 By attaching, different types of fabric can be efficiently attached.

Figure 2 is a view showing the far-end transfer of Figure 1;

Referring to FIG. 2, the fabric transfer unit 100 includes a first supply unit 110, a second supply unit 120, a plurality of feed rollers 130, a foot plate 140, and a tension adjusting unit 150.

The first supply unit 110 is installed to be spaced apart from the second supply unit 120 in the vertical direction or in all directions, winds up the first fabric 1, and moves the first fabric 1 through the feed roller 130. Supply in the direction of the fabric attachment portion 200.

The second supply part 120 is spaced apart from the first supply part 110 in the vertical direction or the front-rear direction, winds up the second fabric 2, and fabricates the second fabric 2 through the feed roller 130. Supply in the direction of the attachment portion (200).

The feed roller 130 is fabricated in each configuration of the present invention (ie, the first supply unit 110, the second supply unit 120, the scaffold 140, the tension adjusting unit 150, and the fabric attachment unit 200, etc.). In accordance with the present invention, a plurality of pieces are installed according to the conveying direction of the fabric, and the first fabric 1 supplied from the first supply unit 110 is transferred to the fabric attachment part 200 while changing the direction. The second fabric 2 supplied from the second supply part is transferred to the fabric attachment part 200 while changing the direction, and the first fabric 1 and the second fabric 2 discharged from the fabric attachment part 200 are Receives the attached third fabric 3 is transferred to the tension control unit 150 direction.

The footrest 140 is installed in the space between the transfer rollers 130 so that the worker can work up, and forms a space in which the third fabric 3 can move to the lower space.

The tension adjusting unit 150 is installed at a rear end of the conveying roller 130 and adjusts the tension of the third fabric 3 conveyed through the conveying roller 130.

Here, the configuration of the tension adjusting unit 150 will be described below with reference to FIG.

The fabric conveyance unit 100 having the configuration as described above can not only easily form the overall configuration of the invention through an efficient arrangement of the feed rollers 130, but also effectively change the direction of movement according to the movement of each fabric Can be controlled by

3 and 4 are views showing the tension control of Figure 2;

Referring to FIG. 3, the tension adjusting unit 150 may include a first roller 151, a second roller 152, a first guide frame 153-1 and a second guide frame 153-2, and tension adjustment. Roller 154.

The first roller 151 is spaced apart at the front end of the second roller 152, the tension adjusting roller 154 is installed in the space between the second roller 152, the third fabric from the feed roller 130 (3) is transferred to the second roller 152 in the direction while receiving and rotating.

The second roller 152 is spaced apart from the rear end of the first roller 151, the tension adjusting roller 154 is provided in the space between the first roller 151, the third roller from the first roller 151 The fabric 3 is transferred and rotated in the same direction as the first roller 151.

The first guide frame 153-1 and the second guide frame 153-2 are respectively provided on one side and the other side of the spaced apart space between the first roller 151 and the second roller 152. It is formed in the shape of a steel, one side or the other side of the tension adjusting roller 154 is inserted into each inner space to provide the sliding grooves (1531-1, 1531-2) so that the tension adjusting roller 154 can move in the vertical direction. do.

However, the first guide frame 153-1 and the second guide frame 153-2 are not limited to the above-described C-shaped steel in terms of their shape characteristics, and one side is open on both sides of the open space. If the wings are formed in each form can be applied without regard to the name.

One side or the other side of the tension adjusting roller 154 is formed in the inner space of the first guide frame 153-1 or the second guide frame 153-2, that is, the sliding grooves 1531-1 and 1531-2. Each of them is inserted and slides upward and downward, and is placed on the upper portion of the third fabric 3 transferred from the first roller 151 to the second roller 152 and pressed downward to adjust the tension of the third fabric 3. do.

At this time, the first roller 151 or the second roller 152 is rotated while being engaged with each other with the third fabric 3 interposed therebetween, so as not to convey the third fabric 3, The third fabric 3 is transferred using the friction force.

Accordingly, the first roller 151 or the second roller 152 is not formed with a flat pattern that is hard to generate frictional force, but a mesh or checkered pattern for generating a certain frictional force with the fabric. It is preferable to form the protruding pattern of the shape such as.

Then, the tension adjusting roller 154 freely moves in the up and down direction corresponding to the conveying tension of the conveyed third fabric 3, and rotates by the frictional force with the conveyed third fabric 3.

That is, the tension adjusting roller 154 does not actively rotate by receiving a driving force from a driving source such as a motor by itself, but manually rotates by a frictional force with the conveyed third fabric 3.

In addition, the tension adjusting roller 154 will be slidingly moved upward along the guide frame 153 when the conveying tension of the third fabric 3 is increased, and the conveying tension of the third fabric 3 is increased. If it decreases, it will slide downward along the guide frame 153.

As a result, the tension adjusting roller 154 may function to maintain the tension of the third fabric 3 to be conveyed by pressing the third fabric 3 to be conveyed with a constant force.

The tension control unit 150 having the configuration as described above, by adjusting the tension to pull the fabric even without a separate driving power, it is possible to generate the appropriate tension required for the transfer of the fabric.

Referring to FIG. 4, the tension adjusting unit 150 having the configuration as described above may further include an impact absorbing unit 300.

The shock absorbing part 300 is installed in the inner spaces of the first guide frame 153-1 and the second guide frame 153-2, respectively, and on one side or the other of the tension adjusting roller 154 falling downward. Supports one side to absorb the impact of falling.

Here, the configuration of the shock absorbing unit 300 will be described below with reference to FIG. 8.

5 is a view showing the scaffold of FIG.

Referring to FIG. 5, the scaffold 140 includes an upper plate 141 and four legs 142.

The upper plate 141 is formed in a rectangular plate shape and is spaced apart from the ground, and provides a space for the user to work on the upper portion, and each corner portion is supported by the legs 142, respectively, The third fabric 3 is conveyed through the space between them.

The leg 142 extends downward from each corner of the upper plate 141, and supports the upper plate 141 so as to be spaced apart from the ground.

In one embodiment, the legs 142 may be provided with a transfer roller 130 for transferring the third fabric 3 at the front or rear end of each leg.

Scaffold 140 having the configuration as described above, by providing a space that allows the user to enter the inner space of the present invention when a failure occurs in some of the configuration of the present invention, can help in the maintenance of the present invention have.

6 is a view showing a fabric attachment portion of FIG.

Referring to FIG. 6, the original fabric attaching part 200 includes an ultrasonic wave generating unit 210 and an embossing roller unit 220.

The ultrasonic generator 210 is provided with the embossing roller 220 facing the lower side and the first fabric 1 and the second fabric 2 are introduced into the space between the embossing roller 220 and the feed roller. Ultrasonic waves are generated by the first fabric 1 and the second fabric 2 being transferred through the 130 and attached to each other to manufacture the third fabric 3.

The embossing roller unit 220 is installed to face the ultrasonic generator 210 at the lower side of the ultrasonic generator 210, and a protruding pattern for inserting the embossed pattern as shown in FIG. Is formed along the roller outer surface.

At this time, the pattern that can be formed along the outer surface of the embossing roller portion 220 is not limited to the form shown in Figure 7, it can be formed in various forms according to the user's needs.

The fabric attachment part 200 having the configuration as described above does not form a separate driving device for conveying each fabric, but a tension adjusting unit for adjusting the tension of the conveying roller 130 and the fabric conveyed at the rear end By the tension by 150, it is possible to convey the fabric and the attached fabric is inserted into itself in the rear end direction.

8 is a view illustrating the shock absorbing part of FIG. 4.

Referring to FIG. 8, the shock absorbing part 300 may include a support part 310, a plurality of vibration absorbing parts 320, a plurality of connecting plates 330, a plurality of extension plates 340, and four rotating parts ( 350 and two support bars 360.

The support part 310 includes a first plate 311, a second plate 312, a third plate 313, and a fourth plate 314 formed of a plate having a “b” shape.

At this time, the first plate 311, the second plate 312, the third plate 313, and the fourth plate 314 are spaced apart from each other so as to face each other, thereby forming an appearance of “+” shape as a whole. The vibration absorbing part 320 is installed in the spaces spaced apart from each other to absorb vibrations transmitted to each plate.

The vibration absorbing part 320 is provided between each plate of the support part 310 and another plate, respectively, and absorbs vibration.

In one embodiment, the vibration absorbing unit 320 may be formed of a material of an elastic material such as a spring or rubber that can absorb shocks, provided that the vibration absorbing unit 320 is applied to a material that absorbs shocks regardless of its name. This will be possible.

The connecting plate 330 may include a third plate 313 between the top of the first plate 311 and the top of the second plate 312, between the front end of the second plate 312 and the front end of the third plate 313. The first plate 311, which is installed between the lower part of the bottom and the lower part of the fourth plate 314, and between the front end of the fourth plate 314 and the front end of the first plate 311, respectively. The second plate 312, the third plate 313, and the fourth plate 314 are installed in a "+" shape.

That is, the connecting plate 330 may not only interconnect the top, bottom, or front end of each plate to form an overall appearance, but also rotate the respective connecting parts to correspond to external vibrations or shocks. By adjusting the connection angle it is possible to more efficiently absorb vibration or shock.

That is, when the first plate 311, the second plate 312, the third plate 313, and the fourth plate 314 are fixed to each other by the connecting plate 330, some degree of external vibration or shock may occur. It may be able to withstand, but when a critical vibration or a critical shock is applied, it will not be able to hold it and the connection plate 330 installed on each plate will be damaged and thus cannot perform its original function.

Accordingly, the connecting plate 330 according to the present invention, by connecting the first plate 311, the second plate 312, the third plate 313 and the fourth plate 314 to some extent possible movement. As described above, the fastening can be maintained more efficiently to vibration or shock than in the case described above.

The extension plate 340 may include an upper part (ie, an upper blade) and a front end (ie, a front wing) of the first plate 311, an upper part and a front end of the second plate 312, and a front end of the third plate 313. The lower part and two parts of the fourth plate 314 extend from the lower part and the front end to the pivoting part 350 for each plate in an upward or downward direction.

In one embodiment, the extension plate 340 may be rotated by the upper or lower is connected to the rotating shaft formed on one side of the rotating unit 350.

In one embodiment, the extension plate 340, the second upper fastening groove (3113) or the second upper fastening groove (3113) or the second upper fastening groove (3113) to allow the sliding movement in the vertical direction in the second fastening groove (3115). A sliding groove 341 (see FIG. 9) in an up and down direction may be formed at a lower portion connected to the shear fastening groove 3115.

Rotating portion 350 is connected to the upper or lower portion of the two extending plate 340 extending from each plate facing each other and rotatable, and installed on each inner side of the support bar 360 facing each other ( Fastening means such as, for example, screw bolts, welding or rivets).

The support bar 360 is provided with an upper side or a lower side of the rotation unit 350, and the support bar 360 positioned above supports one side or the other side of the tension adjusting roller 154 falling downward. The support bar 360 positioned below is fixed to an inner space of the first guide frame 153-1 and the second guide frame 153-2, and is supported by the pivoting part 350 to be vertically positioned. By forming a space to be spaced apart so that each configuration of the shock absorbing portion 300 is installed.

The shock absorbing unit 300 having the above-described configuration can not only prevent the tension adjusting roller 154 from falling beyond a predetermined distance, but also merely support the tension adjusting roller 154. By effectively dispersing the impact due to the fall of the tension adjusting roller 154, it is possible to prevent the tension adjusting roller 154 from colliding with another configuration and being damaged.

FIG. 9 is a view illustrating a first plate of FIG. 8.

Referring to FIG. 9, the first plate 311 may include a plate body 3111, two first upper fastening grooves 3112, a second upper fastening groove 3113, and two first shear fastening grooves 3114. And a second shear fastening groove 3115.

The plate body 3111 is formed of a “b” shaped plate, and forms two first upper fastening grooves 3112 and a second upper fastening groove 3113 in the upper wing, and two first upper fastening grooves in the front wing. The shear fastening groove 3114 and the second shear fastening groove 3115 are formed.

The first upper fastening groove 3112 is formed in the upper wing of the plate body 3111 formed in the upward direction and connects and installs the front end of the connecting plate 330 to be rotatable.

The second upper fastening groove 3113 is formed between the first upper fastening grooves 3112 and connects and installs the lower portion of the extension plate 340 to be rotatable.

The first shear fastening grooves 3114 are formed on the front blades of the plate body 3111 formed in the shear direction, and connect the upper ends of the connection plates 330 so as to be rotatable.

The second shear fastening groove 3115 is formed between the first shear fastening grooves 3114 to connect and install the lower portion of the extension plate 340 to be rotatable.

In one embodiment, the extension plate 340, the second upper fastening groove (3113) or the second upper fastening groove (3113) or the second upper fastening groove (3113) to allow the sliding movement in the vertical direction in the second fastening groove (3115). A sliding groove 341 in the up and down direction may be formed at a lower portion connected to the shear fastening groove 3115.

In addition, the connection plate 330 may also form a sliding groove having the same structure as the sliding groove 341 of the extension plate 340 described above.

The first plate 311 having the configuration as described above may be equally applied to the second plate 312, the third plate 313, or the fourth plate 314 that differ only in its installation position. The description of the second plate 312, the third plate 313, or the fourth plate 314 will be omitted.

The support bar 360 of FIG. 8 according to the present invention may be manufactured with a plastic sheet having excellent moldability and durability compared to the plastic sheet manufactured using PET resin alone.

The plastic sheet which concerns on this invention is manufactured by the following plastic sheet manufacturing method.

Referring to Figure 10, the plastic sheet manufacturing method for producing a plastic sheet of the present invention 100 parts by weight of polyethylene terephthalate (polyethylene telephthalate, PET) resin, 2 to 4 parts by weight of polyurethane (polyurethane) dispersant, polyethylene dioxy 0.1-0.2 parts by weight of offenic polystyrene sulfonate, polystyrolsulfonic acid, 3-5 parts by weight of N-methyl-2-pyrrolidone, tree 0.1 to 0.3 parts by weight of ethyl amine (isopropyl alcohol), 42 to 45 parts by weight of isopropyl alcohol and 50 to 52 parts by weight of water are mixed to prepare a first composition (S110); A second step (S120) of preheating the mixed composition; A third step (S130) of removing moisture of the preheated mixed composition; A fourth step (S140) of heating the mixed composition from which moisture is removed; A fifth step (S150) of removing foreign substances of the heated mixed composition; A sixth step (S160) of manufacturing a plastic sheet by stretching while cooling the mixed composition from which foreign substances have been removed; And a seventh step of applying silicone to the plastic sheet and then drying it (S170).

According to the present invention, various additives may be mixed with a conventional PET resin, and preformed, dehumidified, heated, and cooled may be used to manufacture a plastic sheet having excellent moldability and durability.

The first step (S110), as a mixing step of the raw material, a polyethylene terephthalate (polyethylene telephthalate, PET) resin as a base resin, polyurethane (polyurethane) dispersant, polyethylene dioxythiophene polystyrene sulfonate (polyethylene dioxythiophene polystyrene sulfonate ), Polystyrolsulfonic acid, N-methyl-2-pyrrolidone, triethyl amine, isopropyl alcohol and water Step.

PET resin is a basic resin, has excellent thermal stability and high crystallinity, can be recycled, and can be used in the form of a master batch. Polyurethane dispersants serve to improve the miscibility with other components. Polyethylene dioxythiophene polystyrene sulfonate, polystyrolsulfonic acid, N-methyl-2-pyrrolidone and triethyl amine Functions as an antistatic agent. Since the plastic sheet for manufacturing a plastic container is generally an electrical insulator, static electricity is generated by frictional charging, and if it is severely caused by discharge or electric conduction, it may lead to an explosion or fire, so it is preferable to add a charging agent. . Isopropyl alcohol acts as an antifogging agent. The antifogging agent can suppress water condensation caused by water vapor which may occur when the plastic container is manufactured using the plastic sheet to store fruits and the like.

In one embodiment, the above-described raw materials are based on 100 parts by weight of polyethylene telephthalate (PET) resin, 2 to 4 parts by weight of polyurethane dispersant, polyethylene dioxythiophene polystyrene sulfonate ) 0.1 to 0.2 parts by weight, 0.4 to 0.6 parts by weight of polystyrolsulfonic acid, 3 to 5 parts by weight of N-methyl-2-pyrrolidone, triethyl amine (triethyl amine) 0.1 to 0.3 parts by weight, isopropyl alcohol (42) to 45 parts by weight of isopropyl and 50 to 52 parts by weight of water is preferably mixed. When added outside the above range, various problems may occur. In particular, in the case of the antistatic agent, when mixed over each range, the plastic surface to be produced may be sticky, the sealing and printability may be reduced, in the case of white plastic, yellowing may occur.

In addition, the first step (S110) may be further mixed with various additional ingredients to the raw materials to enhance the functionality of the plastic sheet.

In one embodiment, the boron-based binder may be further mixed. The boron (B) -based binder is used to combine the respective components, the boron-based binder is preferably mixed in 2 to 10 parts by weight with respect to 100 parts by weight of PET resin. When the content of the boron-based binder is less than 2 parts by weight, the raw materials and the like cannot be effectively bound, and when the content of the boron-based binder exceeds 70 parts by weight, it is uneconomical.

In one embodiment, the garlic extract may be further mixed. Garlic extract is a natural adhesive component, and functions as a binder to improve the compatibility with other components along with the boron-based binder. The garlic extract is peeled and crushed garlic, 2 to 3 parts by weight of water per 1 part by weight of garlic, heated at 80-100 ℃ for 5 hours or more, the liquid component is extracted and filtered, and then filtered It can be prepared by concentrating the liquid component at 55 ~ 60 ℃. Garlic extract is preferably mixed 5 to 10 parts by weight with respect to 100 parts by weight of PET resin. If the content of the garlic extract is less than 5 parts by weight, the raw materials may not be properly entangled and the surface may not be formed evenly during plastic sheet production.If the content of the garlic extract is more than 10 parts by weight, the dispersibility and mixing properties of each component are rather There is a risk of deterioration.

In one embodiment, the apatite powder may be further mixed. The apatite powder functions as a filler and can maintain the shape of the plastic sheet to improve workability, maintain strength, and improve corrosion resistance. Apatite is an inorganic substance present in bone, and in order to use it as a filler, it is important to have a small particle size, high residual amount of carbonic acid, and low crystallinity. Preferably the size of the apatite granules is 200-400 μm. For this purpose, it is important to go through the sintering process at 500 ~ 700 ℃. When sintering at less than 500 ℃, there is a disadvantage that the size and crystallinity of the desired granules can not be obtained, when sintering above 700 ℃ has a disadvantage that the residual amount of carbonic acid groups is low, the crystallinity is too high. The apatite powder is preferably mixed at 20 to 30 parts by weight with respect to 100 parts by weight of the PET resin. If the content of the apatite powder is less than 20 parts by weight, there is a disadvantage that the adhesive strength is lowered, and if it exceeds 30 parts by weight, the impact resistance is weakened.

In one embodiment, the cork powder may be further mixed. Cork powder, together with the apatite powder, can improve the durability of the plastic sheet. Cork powder can be prepared by removing the bark of the oyster oak, and then grinding. As cork powder, it is preferable to use finely ground particles filtered into a mesh of 400 mesh or more for mixing with PET resin and the like. Cork powder is preferably mixed in 15 to 25 parts by weight based on 100 parts by weight of PET resin. If the cork powder is less than 15 parts by weight, the degree of improvement of durability is insignificant, and if it exceeds 25 parts by weight, voids may be formed inside the plastic during manufacture, so durability may be rather deteriorated.

In one embodiment, the hermit extract may be further mixed. The hermit extract not only acts as an antimicrobial agent, but also suppresses yellowing that may occur in white plastic sheets. Rumex crispus is a plant in the genus Rumex that grows in Korea. The hermit is a perennial herb that grows well in humid places around the country and uses young shoots for food in folk medicine. It is used as an adjuvant therapy for tumors and cancer. The hermit extract extracted from the hermit has antimicrobial and antioxidant effects against various microorganisms, and when used in combination with a small amount of sulfur, it has an excellent effect on skin itching. It is reported that useful components of the oxalic acid include saponins, tannins, flavonoids, essential oils and anthraquinone derivatives such as chrysophanol and emodin. The hermit extract is washed well with the collected hermit, dried in the shade and broken up into ground parts (except roots) and underground parts (root parts), and extracted with 80% (v / v) methanol for 3 days. After immersion, the extract can be filtered with a membrane filter (porosity 0.5 μm) to separate the solids, and the methanol extract can be prepared by concentrating at 50 ° C. using a rotary evaporator. The hermit extract is preferably mixed at 3 to 8 parts by weight based on 100 parts by weight of the PET resin. When the content of the hermit extract is less than 3 parts by weight, the antimicrobial activity is insignificant in the anti-yellowing effect, when it exceeds 8 parts by weight is uneconomical.

The second step (S120) is a step of preheating the mixed composition, by applying heat to the mixed raw materials to ensure that the raw materials are stably mixed first.

The third step (S130) is a dehumidification step of removing moisture present in the preheated mixed composition, dehumidification is preferably made in a temperature range of 150 ~ 180 ℃. If it is below or exceeding the above range, dehumidification is insufficient or may adversely affect the durability of the plastic.

The fourth step (S140) is a step of heating the mixed composition from which moisture is removed, and after melting the mixed composition, the heating temperature is preferably controlled to 260 to 270 ° C.

The fifth step (S150) is a step of removing foreign matters from the heated mixed composition, and may remove foreign matters inside the mixed composition by passing a screen having a mesh shape.

The sixth step (S160) is a step of producing a plastic sheet by stretching while cooling the mixed composition from which foreign matters are removed, and stretching in two stages using a cooling roll. The primary stretching is made in the longitudinal direction through the cooling roll maintained at 16 ~ 17 ℃, the secondary stretching is made in the width direction (vertical direction in the longitudinal direction) through the cooling roll maintained at 20 ~ 23 ℃. The reason why the temperature of the secondary stretching is higher than the primary stretching temperature is to prevent the plastic sheet to be solidified and to be deteriorated in formability, and to improve the durability and formability of the plastic sheet by alternately stretching the longitudinal direction and the width direction. You can.

In the seventh step S170, after the silicone is coated on the plastic sheet, the silicone sheet may be dried, and the silicon may be coated to finish the treatment, and at the same time, an antistatic effect may be obtained. It is preferable to apply | coat silicone using the coating liquid diluted to the concentration range of 5-25%, and apply | coat silicone, and it is preferable to dry at 160-215 degreeC. In addition, it is preferable to mix the above-mentioned anti-fogging agent component with the coating liquid containing silicone in order to suppress the water phenomenon formed in the manufactured plastic container.

Hereinafter, the configuration of the present invention and its effects through specific examples and comparative examples will be described in more detail. However, this embodiment is intended to illustrate the present invention in more detail, and the scope of the present invention is not limited to these examples.

[Examples and Comparative Examples]

To prepare a mixed composition according to the composition of Table 1, after the preheating, dehumidification, heating, removing foreign matters, cooling and stretching, drying step to prepare a plastic sheet to prepare an example and a comparative example. Each material used commercially available material, and for the garlic extract and the hermit extract were prepared as described in the detailed description of the invention.

TABLE 1

Experimental Example 1

The compositions of Examples 1 to 3 and Comparative Examples were secondly stretched to prepare a 10 mm thick plastic sheet, and the uniformity of the sheet surface was measured and described in Table 2 below. At this time, the primary stretching was 16 ° C, and the secondary stretching was 21 ° C. Uniformity was measured using a laser sensor (N2 laser, oscillation wavelength 337.1nm, UDHO Laser. LTD., Japan), and 30 surface points were randomly selected to measure their surface roughness (standard deviation was used. , ± 0.3 or less were uniform, and more than ± 0.3 was evaluated as nonuniform. At this time, Examples 1-3 were extended in the width direction after extending | stretching in the longitudinal direction, and the comparative example extended | stretched only in the longitudinal direction.

TABLE 2

As in Table 2, in the case of Examples 1 to 3, both uniformity was superior to the comparative example.

Experimental Example 2: Torsion Test

The compositions of Examples 1 to 3 and Comparative Examples were secondly stretched to prepare a plastic sheet having a thickness of 2 mm, and then molded to prepare 100 plastic products, evaluated for completeness, and are shown in Table 3 below. At this time, Examples 1-3 were extended in the width direction after extending | stretching in the longitudinal direction, and the comparative example extended | stretched only in the longitudinal direction.

TABLE 3

As shown in Table 3, in Examples 1 to 3, more than 90% of the normal product can be made, but the comparative example has a relatively high defective rate.

Experimental Example 3: Yellowing Test

The compositions of Examples 1 and 3 were secondly stretched to prepare plastic sheets having a thickness of 2 mm, and then molded to prepare 100 white plastic products, which were visually observed for discoloration after 10 months, and are shown in Table 4 below. It was. At this time, the part which turned yellow was evaluated as defect.

TABLE 4

As shown in Table 4, in the case of Example 3, it was confirmed that almost all products did not discolor. On the other hand, Example 1 obtained good results, but the discoloration rate was relatively higher than that of Example 3.

Experimental Example 4: Antifog Test

After stretching the composition of Comparative Example and Example 3 to prepare a plastic sheet having a thickness of 2mm, and then molded by molding 100 white plastic products, after storing the spinach inside, after 1 day visually observed the inside It is shown in Table 5 below.

TABLE 5

As in Table 5, in the case of Example 3, almost no water droplets were formed, the comparative example was confirmed that the water droplets are enough to be identified with the naked eye.

The support bar 360 made of the above-described plastic sheet of the quality can be improved in durability and excellent moldability than when manufactured by using the PET resin alone.

Accordingly, when the support bar 360 is worn or damaged due to continuous vibration, it is possible to easily rebuild and replace using the above-described plastic sheet to ensure continuous use of the device.

FIG. 11 is a diagram illustrating another example of the scaffold of FIG. 5.

Referring to FIG. 11, the scaffold 140 includes a top plate 141, four legs 142, and a load spreader 400, where the top plate 141 and four legs 142 are illustrated in FIG. 5. Since the same as the components of the description thereof will be omitted.

The load distribution unit 400 is installed at the lower side of each leg 142, the ball housing 410, the hollow portion 415 is provided therein, a plurality of small balls for support 420 placed in the hollow portion 415 And a ground ball 440 having a ground plane 445 and a fixing bolt 446 extending upward from a center of the ground plane 445.

The load spreading unit 400 may distribute and partially absorb a load applied from the outside, and transmit a load q smaller than the load P applied from the outside.

The load spreader 400 distributes the load applied from the outside of the ball housing 410 inside the ball housing 410 and finally transmits a load smaller than the load applied from the outside of the ball housing 410. . The load applied from the outside of the ball housing 410 is distributed by the plurality of supporting small balls 420 and the ground ball 440 located in the hollow part 415, and a part of the load is distributed to the ball housing 410. The inner wall is dispersed while pressing, and the remaining load may be transmitted to the outside of the ball housing 410.

The ball housing 410 may be fixed to the surface by using concrete, etc., and a hollow portion 415 in which a plurality of supporting small balls 420 and ground balls 440 are accommodated may be provided therein. .

The ball housing 410 is a material having a certain strength of iron, concrete, wood, plastic, etc. to support the load distributed by the action between the plurality of supporting small balls 420 and the ground ball 440 disposed therein It may be made of.

The ball housing 410 may be formed in various shapes such as a polyhedron or a sphere, and the hollow part 415 may be formed in a spherical shape corresponding to the shape of the ground ball 440.

The plurality of supporting small balls 420 and the ground ball 440 may be accommodated in the hollow part 415 and may be formed in a spherical shape.

The plurality of supporting small balls 420 may be regularly arranged and received to contact each other along the outer circumferential surface of the hollow part 415. The ground ball 440 may be accommodated in the hollow part 415 in a state in which the ground ball 440 is placed on the plurality of support small balls 420, and may be supported in a point contact state by the plurality of support small balls 420.

As described above, the plurality of supporting small balls 420 and the ground ball 440 are regularly arranged so that the outer circumferences are in contact with each other, and the external load is increased by the contact point between the plurality of the supporting small balls 420 and the ground ball 440. Dispersion of external load may occur while pressing the inner wall of the hollow portion 415, ie the ball housing 410, which is transmitted and finally located at the outermost side. At this time, in the present embodiment, the plurality of small balls for support 420 are regularly arranged, and the ground balls 440 are arranged on the plurality of small balls for support 420, thereby arranging the plurality of small balls for support. The number of contact points between the 420 and the ground ball 440 may be increased, and load transfer may be regulated to increase the load transfer effect between each other. In addition, the ground ball 440 is supported in a point contact state by the plurality of supporting small balls 420, it is possible to minimize the wear.

The plurality of supporting small balls 420 and the ground ball 440 may be made of a material having a strength that can withstand the load by the contact point between each other, for example, may be made of iron, concrete, wood, plastic, and the like. have.

On the other hand, the ground ball 440 may be provided with a ground plane 445 on the top. A fixing bolt 446 is installed at the center portion of the ground plane 445 so that the leg 142 is fixed to the ground ball 440 by being inserted into the lower side of the leg 142.

At this time, the fixing bolt 446 may be formed in a flat pattern without forming a separate protrusion on the outside, but by forming a screw thread along the outer surface (that is, a shape such as a pegs), the lower side of the leg 142 It would be desirable to tighten more strongly.

As such, the load distribution unit 400 is installed on the lower side of the leg 142 to support the leg 142 in a frame formed on the ground or the lower side, thereby ensuring the support stability of the upper plate 141 by the leg 142. Can be.

The above-described embodiments are for illustrative purposes, and those of ordinary skill in the art to which the above-described embodiments belong may easily change to other specific forms without changing the technical spirit or essential features of the above-described embodiments. I can understand. Therefore, it is to be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

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. .

1: first fabric 2: second fabric
3. Third fabric 10: fabric attachment device
100: fabric transfer unit 110: first supply unit
120: second supply unit 130: feed roller
140: scaffold 141: top plate
142: leg 150: tension adjusting unit
151: first roller 152: second roller
153-1: First guide frame 153-2: Second guide frame
154: tension control roller 200: fabric attachment portion
210: ultrasonic generator 220: embossing roller portion
300: shock absorbing portion 310: support portion
320: vibration absorbing portion 330: connecting plate
340: extension plate 350: rotating part
360: support bar 400: load distribution
410: ball housing 420: support small ball
440: ground ball

Claims (2)

A fabric conveying unit which conveys two fabrics while changing a direction by using a plurality of feed rollers, receives the fabrics attached in the transfer process, and transfers and loads them by using the plurality of feed rollers; And
It is installed in the part where the two fabrics are gathered by the transfer roller, and includes a fabric attachment portion for attaching the fabrics to each other using ultrasonic waves,
The fabric conveyance unit, a first supply unit for supplying a first fabric; A second supply unit supplying a second fabric; Delivering the first fabric supplied from the first supply unit to the fabric attachment part while changing the direction, and transferring the second fabric supplied from the second supply unit to the fabric attachment part while changing the direction, and discharging from the fabric attachment part A plurality of transfer rollers configured to receive and transfer the first fabric and the third fabric to which the second fabric is attached; Scaffolding is installed in the space between the transfer roller so that the worker can work up; And a tension control unit installed at a rear end of the conveying roller and adjusting a tension of the third fabric conveyed through the conveying roller.
The tension adjusting unit may include: a first roller which receives the third fabric from the feed roller and rotates the first roller; A second roller spaced apart from the first roller, the second roller receiving a third fabric from the first roller and rotating the same in the same direction as the first roller; A first guide frame and a second guide frame respectively installed on one side and the other side of the spaced apart space between the first roller and the second roller, and formed in a C-shaped steel shape; And one side or the other side is inserted into an inner space of the first guide frame or the second guide frame, respectively, and is moved upward and downward, and is placed on an upper portion of the third fabric conveyed from the first roller to the second roller. It includes a tension adjusting roller for pressing the direction to adjust the tension of the third fabric,
The first roller or the second roller, conveys the third fabric by using the friction force of the outer surface of the roller,
The tension control roller is free to move in the up and down direction corresponding to the conveying tension of the third fabric to be conveyed, and is rotated by the frictional force with the conveyed third fabric,
The scaffolding is formed in a plate shape of a rectangular shape and spaced apart from the ground, providing a space for the user to work on the upper portion, the upper plate is transferred to the third fabric through the space between the ground; And four legs extending downward from each corner of the upper plate and supporting the upper plate to be spaced apart from the ground.
The fabric attachment portion, the ultrasonic generator for generating ultrasonic waves to the first fabric and the second fabric to be conveyed through the transfer roller to attach to each other; And an embossing roller unit disposed opposite the ultrasonic generator at the lower side of the ultrasonic generator and forming a protruding pattern along the outer surface of the roller to insert the embossed pattern into the fabric attached to each other.


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