KR102032996B1 - An apparatus of cut working - Google Patents

Abstract

The present invention relates to a cutting machine, which comprises: a transfer unit transferring a workpiece; a pair of cutting blades reciprocating in the width direction of the workpiece to cut the workpiece in a state in which the transferred workpiece is pressurized and fixed; and a loading unit in which the cut workpiece is loaded.

Description

Cutting Apparatus {AN APPARATUS OF CUT WORKING}

The present invention relates to a cutting processing device, and more particularly, to a cutting processing device for cutting a workpiece to a desired size.

The cutting process of the workpiece formed to extend for a long time includes the process of cutting a workpiece in a vertical direction, and the process of cutting at an oblique angle, such as a 45 degree angle. Generally, when assembling the workpiece such as a window frame or a panel, the workpiece is cut at an oblique angle.

Meanwhile, Korean Patent No. 10-1568253 discloses a cutting device for simultaneously cutting both ends of a frame to a predetermined length. However, according to the above patent, a structure for supporting a part to be cut in the cutting process of the frame is not disclosed, so that the processing of the part to be cut from the frame in the cutting process is not easy, and safety accidents due to detachment of the work table of the part May occur. In addition, it does not provide a place for temporary storage of the finished frame, which is cumbersome.

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. .

One side of the present invention is a transfer unit for transferring the workpiece, a pair of cutting blades and the cut processed to reciprocate in the width direction of the workpiece in the state in which the workpiece to be transported is press-fixed to cut the workpiece Provided is a cutting processing apparatus including a loading portion on which a workpiece is loaded.

Another aspect of the present invention provides a cutting apparatus for automatically applying a release agent to a pair of cutting blades for cutting a workpiece.

Another aspect of the present invention provides a cutting device for adjusting the reciprocating speed of the cutting blade during the cutting process.

Another aspect of the present invention provides a cutting processing apparatus capable of selectively adjusting the length of the loading portion on which the cut workpiece is loaded and the angle with the ground.

Another aspect of the present invention provides a cutting apparatus including an elastic support for absorbing vibrations that may occur due to the reciprocating movement of the cutting blade.

Another aspect of the present invention provides a cutting apparatus comprising an adhesive composition for contact between components.

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.

The cutting device according to an embodiment of the present invention is a cutting unit for transferring the workpiece, a pair of cutting to cut the workpiece by reciprocating in the width direction of the workpiece in the state that the workpiece is conveyed pressure fixed And a loading portion on which the blade and the cut workpiece are loaded.

On the other hand, the cutting device further comprises a main body which is mounted so that the pair of cutting blades can be reciprocated, and detachable, the conveying portion, the conveyance is formed extending from the main body in the extending direction of the workpiece A rail is provided to be slidably movable along the conveying rail, and extends from the conveying rail vertically by the height of the pair of cutting blades and lifts the workpiece to the upper layer at the height of the pair of cutting blades. A lifting frame formed on an upper side of the conveying frame and the conveying frame to compensate for the distance at which the workpiece is conveyed, when being pulled toward the main body side along the conveying rail, so as to help convey the workpiece in an extending direction A pair of cuttings, including a feed roller formed to correspond to the width direction of the workpiece Is drawn from the main body to reciprocate along the width direction of the workpiece to cut the workpiece, withdraw from the main body at a first speed, and when entering into the main body, a second speed slower than the first speed And a release agent is applied by a spray gun included in the main body, and the loading part extends in the width direction of the workpiece from the main body, and the cutting of the pair Is formed extending from a position corresponding to the blade, consisting of a fixed rod and a drawer rod slidably inserted into one end of the fixed rod is formed to selectively vary the length, is connected to the main body rotatably, Rotatably connected to the main body, the other end of which is directed toward the loading part, connected by elastic means such as a spring And the locking jaw of any one of the plurality of locking jaws is connected to the main body by an angle adjusting member having a plurality of locking jaws formed therein, and the one of the plurality of locking hangers formed in a direction perpendicular to the ground on the main body. When caught, the angle between the main body is selectively adjusted to form a predetermined angle with the ground, the main body is formed so as to be located above the workpiece vertically so that the workpiece corresponds to the pair of cutting blades When disposed in the position, the first pressing portion for vertically descending to press the upper side of the workpiece, is formed to be located on the side of the workpiece, the workpiece is disposed in a position corresponding to the pair of cutting blades In this case, the second pressing portion for horizontally moving to press the side of the workpiece and the cutting for withdrawal and withdrawal of the pair of cutting blades It formed in a shape corresponding to the shape of, or comprises a cutting edge opening formed in an arc shape.

According to one aspect of the present invention described above, the cutting process is performed in a state where the workpiece is firmly fixed, so that the accuracy of the cutting process can be increased, and safety accidents such as detachment of the workpiece during the cutting process can be prevented.

In addition, the release agent is automatically applied to the cutting blade to prevent the blade from becoming dull and to reduce the frictional heat between the cutting blade and the workpiece to prevent deformation of the workpiece during cutting.

In addition, by adjusting the reciprocating speed of the cutting blade to prevent deformation of the cutting surface and smooth the surface, it is possible to prevent the overload of the motor for driving the cutting blade.

In addition, the length and the angle of the loading portion are selectively varied to facilitate the transfer of the finished workpiece.

In addition, it is possible to minimize the impact transmitted by the elastic support to the components formed from the workpiece or the body being cut.

In addition, support stability can be ensured by an adhesive composition which is hygienic and excellent in adhesiveness.

1 is a view showing a cutting processing apparatus according to an embodiment of the present invention.
2 is an enlarged view of a portion of a cutting apparatus according to an exemplary embodiment of the present invention illustrated in FIG. 1.
Figure 3 is a view showing an elastic support included in the cutting apparatus according to another embodiment of the present invention.
4 and 5 are views showing the support pillar of FIG.
FIG. 6 is a cross-sectional view illustrating the cross elastic part of FIG. 4. FIG.
FIG. 7 is a view illustrating the vertical elastic part 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 cutting processing apparatus according to an embodiment of the present invention.

Referring to FIG. 1, the cutting apparatus 1000 according to an exemplary embodiment of the present invention may include a conveying part 10 for conveying the workpiece 1 and a pair of pressurizing portions 26 for pressing and fixing the workpiece 1. 27, a pair of cutting blades 23 for reciprocating in the width direction of the workpiece 1 to cut the workpiece 1, and a loading portion 30 for loading the workpiece to be cut 1 Include.

Cutting device 1000 according to an embodiment of the present invention is a device for cutting the workpiece 1 to the required length, in particular, the workpiece (1) by the reciprocating movement of the cutting blade 23 It can be cut at an inclination angle of.

Cutting processing apparatus 1000 according to an embodiment of the present invention can improve the accuracy of the cutting process because the cutting process proceeds in a state where the workpiece (1) is firmly fixed, the workpiece (1) is separated during cutting This can prevent safety accidents.

In addition, the cutting device 1000 according to an embodiment of the present invention may be applied to the cutting blade 23 is automatically applied to the release agent to prevent the blade from becoming dull as well as the cutting blade 23 and the workpiece 1 It is possible to prevent the deformation of the work piece 1 during the cutting process by reducing the frictional heat between the holes.

Hereinafter, each configuration of the cutting apparatus 1000 according to the exemplary embodiment of the present invention illustrated in FIG. 1 will be described in detail.

The transfer part 10 may transfer the workpiece 1 in the extending direction of the workpiece 1. The transfer part 10 is a configuration in which the work piece 1 is loaded, and helps the work piece 1 to be transported in the extension direction of the work piece 1 by an operator, so that a cut portion of the work piece 1 is paired. To be placed on the cutting blade 23. In addition, the transfer part 10 may support at least a part of the workpiece 1 during the cutting of the workpiece 1 to ensure the accuracy of the cutting.

The conveying unit 10 includes a conveying rail 11, a conveying frame 13, and a conveying roller 15.

The conveying rail 11 may extend from the main body 21 provided with a pair of pressing parts 26 and 27 and a pair of cutting blades 23. The conveying rail 11 may extend from the main body 21 in the conveying direction of the workpiece 1, that is, in the extending direction of the workpiece 1.

The transfer frame 13 may be provided to slide the transfer rail 11. The conveying frame 13 extends vertically from the conveying rail 11 by the height of the pair of cutting edges 23 so that the workpiece 1 to be stacked on the upper side of the conveying frame 1 of the pair of cutting edges 23 is formed. You can lift it to a height.

The conveying frame 13 can slide along the conveying rail 11 by an operator. For example, the worker may transfer the cutting portion of the workpiece 1 loaded on the upper side of the transfer frame 13 to be disposed on the pair of cutting edges 23 and pull the transfer frame 13 toward the main body side. . This is to compensate for the distance that the workpiece 1 is transported so that at least a part of the workpiece 1 is supported by the transport frame 13 during cutting.

The conveying roller 15 may be formed above the conveying frame 13. The conveying roller 15 is formed on the upper side of the conveying frame 13 so as to correspond to the width direction of the workpiece 1, so that the workpiece 1 can be conveyed in the extending direction. That is, the workpiece 1 may be conveyed along the conveying roller 15 in the direction in which the operator guides.

The cutting blade 23 can be taken out from the main body 21 to reciprocate along the width direction of the workpiece 1 to cut the workpiece 1.

In this case, the cutting blade 23 may be in a state in which a release agent is applied. To this end, the inside of the body 21 may include a spray gun for injection of the release agent. When the cutting blade 23 is drawn into the inner space of the main body 21, a release agent may be applied. In this case, the spray gun may be provided to maintain a sufficient distance from the cutting blade 23 introduced into the inner space of the main body 21 to be uniformly sprayed on the cutting blade 23.

The cutting blade 23 may be mounted to the main body 21 to be reciprocated along the width direction of the workpiece 1 by a predetermined motor drive. At this time, the cutting blade 23 is mounted to be detachable to the main body 21 to facilitate maintenance or replacement.

The cutting blade 23 may be controlled to be drawn out at the first speed when drawn out from the main body 21, and may be controlled to be drawn in at the second speed when drawn into the main body 21. Here, the first speed may be faster than the second speed. The cutting blade 23 reciprocates the workpiece 1 and cuts the workpiece 1, where the primary movement moves at a higher speed than the secondary movement for the purpose of cutting the workpiece 1, The secondary movement can move at a slower speed than the primary movement to prevent deformation of the workpiece 1 cut surface and smooth its surface. In addition, the overload of the motor driving the cutting blade 23 can be prevented.

The first pressing part 26 may press the workpiece 1 in the vertical direction, and the second pressing part 27 presses the workpiece 1 in the horizontal direction and is transferred to the main body 21. (1) can be fixed. This will be described with reference to FIG. 2.

FIG. 2 is an enlarged view of a portion of a cutting apparatus according to an exemplary embodiment of the present invention illustrated in FIG. 1.

Referring to FIG. 2, the main body 21 provides a space in which the workpiece 1 is disposed, and the first pressing part 26, the second pressing part 27, and the cutting blade opening 22 may be formed. have.

The first pressing part 26 may be formed in the main body 21 to be located above the workpiece 1 vertically. When the workpiece 1 is transported and disposed at a position corresponding to the cutting blade 23, the first pressing part 26 may vertically descend to press the upper side of the workpiece 1.

For example, when the cutting portion of the workpiece 1 including the cylinder portion 28 is disposed at a position corresponding to the cutting edge 23, the first pressing portion 26 is vertically lowered so that the workpiece 1 The upper side of the can be pressed.

The second pressing part 27 may be formed in the main body 21 to be located at the side of the workpiece 1. When the workpiece 1 is transported and disposed at a position corresponding to the cutting blade 23, the second pressing part 27 may horizontally pressurize the side of the workpiece 1.

For example, the second pressing portion 27 may be provided at a position corresponding to the loading portion 30, and when the cut portion of the workpiece 1 is disposed at a position corresponding to the cutting edge 23, By horizontally moving it will be possible to press the fixed side of the workpiece (1).

The cutting blade opening 22 may be formed such that the cutting blade 23 may be drawn out from the internal space of the main body 21 or the cutting blade 23 may be drawn into the internal space of the main body 21.

The cutting blade opening 22 may be formed to correspond to the inclined shape of the cutting blade 23 or may be formed in a fan shape. This is for cutting the workpiece 1 to the required angle by adjusting the inclination angle of the cutting blade 23.

The loading part 30 may extend from the main body 21 in the width direction of the workpiece 1. Loading portion 30 is a configuration for temporarily placing the workpiece (2) processed by the cutting blade 23, for this purpose extending from a position corresponding to the pair of cutting blade 23 in the main body 21 It is desirable to be. The loading part 30 extends from the main body 21 longer than the width direction of the workpiece 1 so as to safely load the workpiece 2.

For example, the worker lifts the workpiece 2, which has been cut, and moves it to the loading part 30 to remove the workpiece 2 that has been cut on the main body 21, and then, through the transfer part 10, the body ( 21) The workpiece 1 can be transferred onto.

This loading portion 30 may be formed to be able to selectively vary the length. For example, the loading part 30 is composed of a fixed rod and a drawer rod slidably inserted into one end of the fixed rod, and formed to be able to selectively change its length by adjusting the length of the drawer inserted into the fixed rod. Can be.

In addition, the loading part 30 may be formed to selectively vary the angle formed with the main body 21. That is, the loading part 30 may be formed to selectively vary the angle formed with the ground.

In FIG. 1, the loading part 30 may be provided in parallel with the ground. Meanwhile, according to an exemplary embodiment of the present invention, the loading unit 30 may be formed to tilt the loading unit 30 to facilitate the transfer of the finished workpiece 1 loaded on the loading unit 30.

For example, the loading part 30 may be rotatably connected to the main body 21. In addition, the loading part 30 may be connected to the main body 21 by the angle adjusting member. One end of the angle adjusting member may be rotatably connected to the main body 21 to enable a rotational movement. Since the other end of the angle adjusting member is directed toward the loading portion 30 and is connected to the loading portion 30 by an elastic means such as a spring, elastic up and down movement may be possible. In addition, a plurality of hooks may be formed in the body 21 in a direction perpendicular to the ground, and a plurality of locking jaws may be formed in the angle adjusting member. Accordingly, the angle between the loading portion 30 and the main body 21 is adjusted by hooking any one of the plurality of hooks to any one of the plurality of locking jaws of the angle adjusting member, so that the loading portion 30 and the ground are predetermined. To form an angle.

The cutting device according to another embodiment of the present invention differs in that it further includes an elastic support as compared with the cutting device according to the embodiment of the present invention shown in FIG. 1, and the other other configurations are the same. . Therefore, in the following description, only the elastic support is described, and the description of the rest of the configuration is replaced with the above description.

The elastic support portion is mounted on the bottom of the main body 21 to absorb vibrations that may occur due to the reciprocating motion of the cutting blade 23, and is cut by supporting the main body 21 from the ground using elastic force. It is possible to minimize the impact transmitted to the components 1 formed from the workpiece 1 or the body 21 in use.

Figure 3 is a view showing an elastic support included in the cutting apparatus according to another embodiment of the present invention.

Referring to FIG. 3, the elastic support part 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 is supported by the supporting plate 510 installed at the lower side, and supports the height adjusting unit 11 by using elastic force when the height adjusting unit 11 vibrates.

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 support 500 having the above-described configuration, bar can also be formed in a vertical symmetrical structure, in the case of Figure 3 is shown that each configuration is formed only on the upper portion of the support pillar 530 The configuration associated with four support plates 510 and four pairs of support frames 520 as one would be equally applicable to the bottom of the support posts 530.

4 and 5 are views showing the support pillar of FIG.

Referring to FIG. 4, the support pillar 530 includes a pillar body 531, a cross groove 532, a cross elastic portion 533, four vertical grooves 534 (see FIG. 6), and four vertical elastic portions. 535 (see FIG. 10).

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. 6 is a cross-sectional view illustrating the cross elastic part of FIG. 4. FIG.

Referring to FIG. 6, the cross elastic part 533 includes a cross case part 5313, an upper support part 5332, four upper elastic parts 5333, four upper elastic support parts 5340, and four upper connecting 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 5311 is formed shorter than the length of each branch of the cross groove 532, as shown in Figure 14, the upper portion in the space formed on the outside of the cross case portion (5331) The connecting link portion 5335 may be disposed and may form a space for 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. 7 is a view illustrating the vertical elastic part of FIG. 5.

Referring to FIG. 7, the vertical elastic part 535 includes a vertical case part 5331, a side support part 5332, a side elastic part 5435, 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. .

Cutting processing apparatus according to another embodiment of the present invention may further comprise an adhesive composition.

Cutting processing apparatus according to another embodiment of the present invention is a cutting processing apparatus 1000 according to an embodiment of the present invention shown in Figure 1, the transfer portion 10 and the loading portion extending from the main body 21 It can be used for the adhesion between the 30 and the main body 21.

In the present embodiment, the adhesive composition, 40 to 80 parts by weight of thermoplastic resin, 5 to 40 parts by weight of 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 and antioxidant 0.1 It includes 1 part by weight. 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 thereof 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 Co., Ltd. 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, in the present embodiment, the adhesive composition is preferably used by mixing the biodegradable hypoallergenic resin together with the various petroleum resins 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.

The present invention preferably uses a mixture of stone powder and pulp powder as a filler in order to reduce odor and bacterial development while controlling the reinforcement and flowability of the adhesive composition. 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 is 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, in the present embodiment, when the adhesive composition is applied, it is subjected to a press operation, in which case there is a possibility that a poor adhesion due to the amount is removed.

Thus, in the present embodiment, the adhesive composition may further include a nano silica value which can improve the adhesion by allowing the adhesive composition to be uniformly distributed on the 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. 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.

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 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 of the adhesive (g) passed through the cylinder for 10 minutes was measured by placing 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 a biodegradable hypoallergenic resin it was confirmed that the adhesion and flow index does not fall significantly. In addition, when the nano-silica is mixed, the flow index can be seen to increase significantly.

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. .

1000: cutting processing equipment
1: Workpiece
10: transfer part
11: conveying rail
13: transfer frame
15: feed roller
21: main body
23: cutting blade
26: first pressing portion
27: second pressing portion
30: loading part

Claims (2)

A transfer unit for transferring the workpiece;
A pair of cutting blades reciprocating in the width direction of the workpiece in the state in which the conveyed workpiece is pressed and fixed to cut the workpiece; And
Including a loading portion on which the cut workpiece is loaded,
The pair of cutting blades can be reciprocated and further includes a main body mounted to be detachable,
It is installed on the bottom surface of the main body, further comprising an elastic support for absorbing the vibration that may be generated by the reciprocating movement of the pair of cutting blades,
The elastic support,
A support frame 540 supported by a support plate 510 installed at a lower side thereof;
The support plate 510 supporting the support frame 540 seated on the upper side and supported by the support pillar 530 by a support frame 520 connected to the lower side;
The support frame 520 is connected to the two frames of the first frame (521a) and the second frame (521b) rotatably at the lower portion of the support plate 510 to support the support plate (510); And
It is formed in the form of a square pillar, the lower portion of the first frame (521a) is connected to the upper side to enable rotation and horizontal sliding movement, the lower portion of the second frame (521b) is rotated on one side and vertical direction It is connected to the sliding installation, and includes a support pillar 530 that absorbs vibration or shock through elastic force during the sliding movement of the first frame (521a) or the second frame (521b),
The support pillar 530,
A pillar body 531 formed in a rectangular pillar shape and having a cross groove 532 formed thereon and a vertical groove 534 formed at each side thereof;
A cross recess 532 formed in the upper portion of the pillar body 531 in a “+” shape and having a cross elastic portion 533 inserted thereinto;
Cross resilient portion formed in a shape corresponding to the shape of the cross groove 532 is inserted into the cross groove 532, the lower side of the first frame (521a) is connected to the upper end of the four branches so as to be rotatable (533);
Vertical grooves 534 are formed in the vertical direction on each side of the pillar body 531, the vertical elastic portion 535 is inserted into the interior space; And
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 installed on the upper outer side so as to be rotatable. Including,
The cross elastic portion 533,
An internal space formed in an empty " + " shape and inserted into the cross groove 532, the length of each branch being formed shorter than the length of each branch of the cross groove 532;
An upper support part 5332 formed of a cube and disposed at a central portion of the cross case part 5313;
An upper elastic part 5333 disposed on each side of the support part 5332;
On each of the ends of each branch of the inner space of the cross case portion 5331, is supported by the elastic force of the upper elastic portion (5333), the support bar (5336) provided between the upper connecting link portion (5335) An upper elastic support part 5340 supporting the upper connection link part 5535 by the upper elastic support part 5340; And
The support bar 5336 is disposed at each end of each branch of the cross groove 532, and is set by the support bar 5336 disposed between the side surface facing the cross case part 5313 and the upper elastic support part 5344. It is maintained at intervals, the lower side of the first frame (521a) is connected to be installed so as to be rotatable, the center of each branch of the cross groove 532 meets in the vertical direction of the support plate 510 The upper connection link portion 5335 sliding along a groove of the cross groove 532 in a direction;
The vertical elastic portion 535,
A vertical case part 5331 in which an inner space is formed in a shape corresponding to the shape of the empty vertical groove 534;
It is formed of a cube, disposed in the lower space of the vertical case portion (5341) side support portion (5342);
A side elastic part 5343 disposed on an upper side of the side support part 5332 and supporting a side elastic support part 5344 disposed on the side by an elastic force;
A side elastic support part 5344 disposed on an inner space of the vertical case part 5331 and supported by an elastic force of the side elastic part 5344; And
A predetermined interval disposed at an upper end of the vertical groove 534 and provided by a support bar 5354 disposed between the lower surface facing the vertical case portion 5331 and the upper surface of the side elastic support portion 5344. And a side connection link which is connected to the outer side so that the lower side of the second frame 521b is rotatable and slides along the groove of the vertical groove 534 in the downward direction of the vertical groove 534. Including a portion 5345,
Used to bond between the transfer part and the loading part and the main body extending from the main body, 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 resin, 1 to 10 parts by weight of plasticizer It further comprises an adhesive composition comprising 1 to 10 parts by weight of filler and 0.1 to 1 part by weight of antioxidant,
The transfer unit,
A transfer rail extending from the main body in an extension direction of the workpiece;
It is provided to be slidably movable along the conveyance rail, extends from the conveyance rail vertically by the height of the pair of cutting blades, and lifts the workpiece to the height of the pair of cutting blades. A conveying frame for compensating for the distance at which the workpiece is conveyed when drawn along the conveying rail toward the main body; And
It is formed on the upper side of the conveying frame, and includes a conveying roller formed to correspond to the width direction of the workpiece to help the workpiece is conveyed in the extension direction,
The pair of cutting blades
The workpiece is drawn out from the main body to reciprocate in the width direction of the workpiece to cut the workpiece, withdraw from the main body at a first speed, and at a second speed slower than the first speed when drawn out from the main body. When it is retracted and moved into the main body, a release agent is applied by a spray gun included in the main body,
The main body,
A first pressing part which is formed to be positioned above the workpiece and is disposed at a position corresponding to the pair of cutting blades, and vertically descends to press the upper side of the workpiece;
A second pressing unit which is formed to be positioned at a side of the workpiece and is horizontally moved to press the workpiece when the workpiece is disposed at a position corresponding to the pair of cutting blades; And
And a cutting edge opening formed in a shape corresponding to the shape of the cutting blade or in a fan shape for withdrawal and withdrawal of the pair of cutting blades.
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