KR100745232B1 - Ultra sonic cutting device and control method thereof - Google Patents

Abstract

An ultra sonic cutting device and a control method thereof are provided to implement a non-sewing manner and simultaneously to melt a cutting portion, thereby offering the excellent finishing portion. The ultra sonic energy is applied to an ultra sonic horn(140). The fabric to be cut is wound to the outer diameter of a roll jig(200). A cutting protrusion is formed at the outer diameter of the roll jig, contacted with the rear of the fabric and corresponds to the outer shape line of the shape to be cut. The roll jig is rotated so that the applied ultra sonic energy is generated along the cutting protrusion. The first driving member rotates the roll jig. The second driving member moves straightly the roll jig along the rotated shaft line. The first driving member includes the first shaft axially combined with the roll jig. A moving block rotatably supports the first shaft. The first motor is installed at the moving block and supplies the rotation driving force to the first shaft.

Description

Ultrasonic cutting device and control method

1 is a perspective view of one embodiment of the ultrasonic cutting device of the present invention.

2 is a side view of the ultrasonic cutting device shown in FIG.

3 is a side cross-sectional view of the main components for driving the roll jig of the ultrasonic cutting device shown in FIG.

Figure 4 is a block diagram for explaining a control method of the ultrasonic cutting device of the present invention.

* Description of the symbols for the main parts of the drawings *

100: ultrasonic generator 110: power supply

120: Converter 130: Booster

140: ultrasonic horn 200: roll jig

210: cutting protrusion 300: the first driving part

310: first shaft 320: moving block

330: the first motor 400: the second drive unit

410: second shaft 420: second motor

430: bearing block 440: rail

500: fixing means 511: intake hole

512: first passage 513: second passage

514: intake pipe 515: intake motor

520: magnet 530: fixing protrusion

610: static pressure cylinder `620: mass lifting cylinder

700: control unit 710: detection plate

720: detection sensor 800: main table

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic cutting device and a control method thereof, and more particularly, to an ultrasonic cutting device for unsealing a fabric using ultrasonic waves and a control method thereof.

In general, various garments are manufactured by cutting the fabric along the outer shape of the garment and sewing the cut fabric.

When the fabric is cut with a knife or scissors, the cut portion is not so clean, and the ol's are easily loosened. Therefore, the cut portion is treated separately to compensate for this.

For example, after the fabric is cut, a method of folding the end of the cut portion or making a crease may be applied.

However, in the case of women's underwear, such as a bra, there is a drawback such as when the cutting portion is folded or the fabric is sewn with a thick cutting portion to expose the underwear line to the outside.

In addition, the sewing method is a separate process for processing the cutting portion of the fabric was performed, it was uneconomical and inefficient.

In order to reduce the number of manufacturing process and efficient fabric treatment, no sewing method has been proposed to heat the cutting part.

However, in the heating treatment method described above, in the case of underwear, the cutting part is crying or the cutting part is hardened by heat, and thus, when the cured cutting part is in contact with the body, it is unpleasant to the wearer to reduce the feeling of wearing. Of course, there was a problem that adversely affects the wearer's skin.

In view of the above problems, the present invention is to provide an ultrasonic cutting device and a control method for cutting without hot-bonding the fabric to implement a sewing method without cutting the cutting portion.

The present invention for achieving the above object, the ultrasonic horn to which the ultrasonic energy is applied, the fabric to be cut is wrapped around the outer diameter portion, but the cutting projection matching the outline line of the shape to be cut of the fabric to the outer diameter portion A roll jig which is formed to support the rear surface of the fabric and is rotated and linearly moved along the axis line so that ultrasonic energy applied to the ultrasonic horn is oscillated along the cutting protrusion, and a first driving part for rotating the roll jig; And a second driving portion for linearly moving the roll jig along its axis.

The first driving unit may include a first shaft having the roll jig axially coupled to one end thereof, a moving block rotatably supporting the first shaft, and installed on the moving block to provide rotational driving force to the first shaft. It may include a first motor.

A sensing plate installed on the other end of the first shaft, a sensing sensor installed on a rotation path of the sensing plate to detect the presence of the sensing plate, and collecting signals from the sensing sensor to determine the roll jig. It may further include a control unit for controlling the position.

It may further include a fixing means for fixing the fabric to the outer diameter of the roll jig.

The fixing means includes a plurality of intake holes formed through the outer diameter portion of the roll jig, a first passage formed therein along the axis line of the roll jig, and communicating with the intake holes, and the shaft of the first shaft. A second passage formed inside the ship and communicating with the first passage, an intake pipe whose one end is located inside the roll jig by sequentially passing through the second passage and the first passage, It may include an intake motor coupled to the other end to intake air in the first passage to the outside.

The fixing means may include a fixing protrusion fitted to the rear surface of the fabric to form the same trajectory as the cutting protrusion at the outer diameter portion of the roll jig.

The fixing means may include a plurality of magnets for fixing the fabric to the outer diameter portion of the roll jig by magnetic force.

The second driving part may include a second shaft penetrating the moving block in the axial direction of the first shaft and spirally coupled to the moving block, and coupled to one end of the second shaft to rotate the driving force on the second shaft. A second motor and a bearing block coupled to the other end of the second shaft to rotatably support the second shaft, and the movable block and the main table on which the movable block is installed are provided in a male and female structure. It may include a rail for guiding the transfer block on the axis.

The cutting protrusion may be formed with an inclined surface on the side.

The ultrasonic horn may be held in contact with the cutting protrusion at a predetermined pressure in combination with the positive pressure cylinder.

In another aspect, the present invention, (a) loading the fabric to the outer diameter portion of the roll jig, (b) rotating the roll jig to control the position of the ultrasonic horn, and (c) (b) Oscillating ultrasonic energy on the fabric loaded in the roll jig in the step; and (d) rotating the roll jig so that the ultrasonic energy oscillated in the step (c) is oscillated along the outline line of the shape to be cut of the fabric. And linearly moving.

In the step (c), the ultrasonic horn is pressurized in a constant pressure state to the roll jig to oscillate ultrasonic energy.

An embodiment of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a perspective view of one embodiment of the ultrasonic cutting device of the present invention, Figure 2 is a side view of the ultrasonic cutting device shown in Figure 1, Figure 3 is a major component for driving the roll jig of the ultrasonic cutting device shown in Figure 2 Side cross section view.

1 to 3, an embodiment of the ultrasonic cutting device according to the present invention is the ultrasonic horn 140 is applied to the ultrasonic energy generated from the ultrasonic generator 100, and the fabric to be cut the outer diameter portion ( 201) is formed on the outer diameter portion 201, the cutting protrusion 210 is formed to match the outer line (L) of the shape to be cut of the fabric to support the back of the fabric and apply to the ultrasonic horn 140 Roll jig 200 is rotated and linearly moved along the axial line so that the ultrasonic energy is oscillated along the cutting protrusion 210, the first driving unit 300 for rotating the roll jig 200, and the roll jig And a second driving part 400 for linearly moving 200 along the axis line.

The ultrasonic horn 140 is a component that cuts an object by oscillating ultrasonic energy on the fabric in contact with the fabric and generating frictional heat at the contact portion with the fabric by the ultrasonic energy.

The ultrasonic horn 140 forms the ultrasonic generator 100 together with the power supply 110, the converter 120, and the booster 130, and receives the generated ultrasonic energy to oscillate the fabric.

Specifically, the ultrasonic generator 100 is the power supply 110 is installed on the main table 800 of the device while receiving the commercial power to adjust the frequency so that the ultrasonic wave is generated, the converter 120 is the power The electrical energy supplied from the supply 110 is converted into vibration energy, and the booster 130 follows a conventional configuration in which the amplitude of the vibration energy supplied from the converter 120 is applied to the ultrasonic horn 140.

For example, the ultrasonic horn 140, the booster 130, and the converter 120 are assembled in a vertical and vertical direction to be integrated, and the main body 150; Is installed on the frame 810 is installed on the) is preferably located above the roll jig 200.

The roll jig 200 is formed in a cylindrical shape, and the fabric to be cut is wrapped in the outer diameter portion 201 and loaded. This embodiment illustrates that the fabric to be cut into the bra is loaded.

In particular, the fabric loaded on the roll jig 200 is less than the length of the roll jig 200 so that the width of the roll jig 200 does not interfere with the outside of the roll jig 200, and the length is less than or equal to the circumferential length of the roll jig 200. It is preferable.

The roll jig 200 is formed in the outer diameter portion 201 is formed along the circumferential direction of the cutting protrusion 210 to match the outline line (L) of the shape to be cut of the fabric, the cutting protrusion 210 is the Support the back surface by line contact or surface contact.

Thus, the ultrasonic cutting device according to an embodiment of the present invention, according to the shape of the cutting protrusion 210 of the roll jig 200 can be cut to the finishing portion of the bra in a wave shape as well as the finish to be cut There is an advantage that the site can have a variety of patterns.

In addition, the roll jig 200 is configured to rotate and move itself so that the ultrasonic energy applied to the ultrasonic horn 140 is oscillated along the cutting protrusion 210.

That is, in the ultrasonic cutting device according to the embodiment of the present invention, when the ultrasonic horn 140 to which the various wires are connected is circumferentially rotated along the cutting protrusion 210, the wiring processing becomes difficult and the configuration of the device becomes complicated. The ultrasonic horn 140 is maintained in a fixed state, but the roll jig 200 rotates and moves linearly, and the cutting is performed along the cutting protrusion 210 to simplify and downsize the configuration of the apparatus.

Specifically, the roll jig 200 is rotated by the first driving unit 300 and linearly moved by the second driving unit 400.

Accordingly, the roll jig 200 may contact the cutting protrusion 210 with the ultrasonic horn 140 through the fabric, and the first driving part to oscillate the ultrasonic energy applied to the ultrasonic horn 140 along the cutting protrusion 210. It is rotated and linearly moved by the 300 and the second driving unit 400.

Thus, the ultrasonic cutting device according to an embodiment of the present invention, since the roll jig 200 is rotated and linearly moved in parallel along the outline line (L) of the shape that the ultrasonic horn 140 is to be cut even in a fixed state There is an advantage that the ultrasonic energy can be oscillated.

As shown in FIGS. 2 to 3, the first driving part 300 includes a first shaft 310 having one end axially coupled to the roll jig 200, and the first shaft 310 penetrated therein. A moving block 320 provided with a bearing 321 to rotatably support the first shaft 310 and a first installed in the moving block 320 to provide rotational driving force to the first shaft 310. And a motor 330.

In the above configuration, the first motor 330 and the first shaft 310 is preferably provided with a deceleration means.

For example, the deceleration means may include pulleys 341 and 342 installed on the first shaft 310 and the first motor 330, and a belt 343 connecting the pulleys 341 and 342, respectively. The pulley 341 installed on the first shaft 310 may implement deceleration by installing a larger outer diameter than the pulley 342 installed on the first motor 330.

Accordingly, when power is applied to the first motor 330, the rotation driving force is transmitted in the order of the pulley 342, the belt 343, the pulley 341, the first shaft 310, and the roll jig 200.

On the other hand, since the first driving unit 300 needs to rotate the roll jig 200 precisely and accurately, it is preferable to implement power transmission through a combination of a step motor and a timing belt which are mainly used for precision control in the general industry. .

That is, the first motor 330 may be a step motor and the belt 343 may be a timing belt.

In the above configuration, means for controlling the position of the roll jig 200 before the ultrasonic horn 140 oscillates ultrasonic energy with respect to the fabric is added.

Specifically, the means for controlling the position of the roll jig 200 is the sensing plate 710 is installed on the end of the first shaft 310 and the sensing plate is installed on the rotation path of the sensing plate 710 A detection sensor 720 for detecting the presence of the 710, and the control unit 700 for controlling the exact position of the roll jig 200 by collecting the signal of the detection sensor 720.

The sensing plate 710 has a shape in which a part of the outer edge thereof is omitted, and a central portion thereof is coupled to the end of the first shaft 310, and rotates together with the roll jig 200 to detect the presence or absence of the sensing sensor 720. do.

The detection sensor 720, the presence of the sensing plate 710 so that the cutting protrusion 210 of the roll jig 200 is positioned in the correct position with respect to the ultrasonic horn 140 before the ultrasonic horn 140 oscillates ultrasonic energy. It detects the absence and transmits the collected information to the control unit 700.

Specifically, the sensing sensor 720 may be a proximity type optical sensor in which the light emitting unit and the light receiving unit are adjacent to each other, and the omitted portion of the sensing plate 710 is positioned between the two as the sensing plate 710 rotates. The light signal is transmitted to the controller 700, and when a detection plate is detected as being present, a dark signal is transmitted to the controller 700.

Accordingly, the control unit 700 determines the signal collected by the detection sensor 720 so that the cutting protrusion 210 of the roll jig 200 may be positioned in the correct position with respect to the ultrasonic horn 140. The roll jig 200 is rotated by controlling the driving.

In the above configuration, the roll jig 200 preferably further includes fixing means 500 for firmly fixing the fabric to the outer diameter portion 201 thereof.

In detail, the fixing means 500 includes a plurality of intake holes 511 formed through the outer diameter portion 201 of the roll jig 200 toward the center and inside the axis of the roll jig 200. A first passage 512 formed therein and communicating with the intake hole 511 and a second passage formed therein along the axis line of the first shaft 310, and communicating with the first passage 512 ( 513, the second passage 513 and the first passage 512 sequentially pass through one end of the intake pipe 514 located inside the first passage 512 and the intake pipe 514 It is coupled to the other end includes an intake motor 515 to intake the air in the first passage 512 to the outside.

When power is applied to the intake motor 515, an intake force is generated in the first passage 512 by the intake pipe 514, and thus the outer diameter portion of the roll jig 200 through the intake hole 511. The fabric of 201 is suction fixed.

Therefore, the fabric surrounding the outer diameter portion 201 of the roll jig 200 is not separated and remains firmly fixed to the outer diameter portion 201.

Such a fixing method forms a roll jig 200 in a hollow cylindrical shape to implement an intake method for the fabric in the inner diameter portion, so that the fabric can be firmly fixed to the roll jig 200 without damaging the fabric. .

That is, since the roll jig 200 is a component that rotates and moves linearly, it is not easy to directly connect the pipe for intake. Therefore, there is an advantage that the intake pipe 514 for intake is prevented from twisting even when the roll jig 200 rotates by the above configuration.

On the other hand, in addition to the above configuration, the fixing means 500 may be implemented by a fixing method by a magnetic force.

Specifically, the outer diameter portion 201 of the roll jig 200 is fixed to the plurality of magnets 520 or a metal body (not shown in the drawing) that is attracted to the magnetic force, the fabric is fixed to the outer diameter portion 201 In the wrapped state, by attaching another magnet (not represented in the drawing) to the upper surface of the magnet 520 or the metal body by the magnets between the magnets, it is possible to more firmly maintain the fixed state of the fabric.

In this fixing method, the fabric can be fixed to the roll jig 200 without damaging the fabric as in the air suction method.

On the other hand, the fixing means 500 may be implemented in addition to the above physical fixing method.

Specifically, in the outer diameter portion 201 of the roll jig 200 by forming a fixed protrusion 530 formed in the same locus as the cutting protrusion 210 in a portion spaced apart from the cutting protrusion 210 by a predetermined distance to the outside. The final cut-off part may be inserted into the fixing protrusion 530 to more firmly maintain the fixed state of the fabric.

This fixing method will be more effective when the fabric is elastic, non-woven fabric, sponge, polymer material formed to a predetermined thickness.

As described above, since the fabric is firmly fixed to the outer diameter of the roll jig 200 by the air intake method, the magnetic method, and the physical method, even when strong vibration occurs in the contact area with the ultrasonic horn 140, Departure is prevented.

The second driving unit 400 penetrates the moving block 320 in the axial direction of the first shaft 310, while a screw thread is formed in the outer diameter part 201 to helically couple the moving block 320. 410 and a second motor 420 coupled to one end of the second shaft 410 at the rear side of the moving block 320 to provide rotational driving force to the second shaft 410 and the moving block 320. A bearing block 430 for rotatably supporting the second shaft 410 by being coupled to the other end of the second shaft 410 on the front side of the moving shaft; and a movable block 320 and the main block at the rear side of the moving block 320. The table 800 includes rails 440 (441, 442) which are installed in a mutual male and female structure to guide the moving block 320 on an axis line.

The second shaft 410 has a screw thread formed on the outer diameter portion 201 and is axially penetrated and axially coupled to the moving block 320.

The second motor 420 is coupled to one end of the second shaft 410 rotatably supported by the bearing block 430 to rotate the second shaft 410.

The moving block 320 is guided to the rail 440 by a spiral action with the second shaft 410 rotated by the second motor 420 and linearly moved in the axial direction.

Accordingly, the roll jig 200 installed in the moving block 320 is rotated by the first driving unit 300 and linearly moves in parallel in the axial direction by the second driving unit 400.

In the above configuration, the ultrasonic horn 140 is coupled to the positive pressure cylinder 610 to maintain contact with the cutting protrusion 210 at a predetermined pressure.

In this configuration, when the ultrasonic horn 140 is pressed beyond the proper pressure to the cutting protrusion 210, the cutting can be made smoothly, but rotation and linear movement of the fabric may be disturbed and the fabric may be damaged, and the cutting protrusion ( When the pressure is lower than the proper pressure 210, the rotation and linear movement of the fabric is made smoothly, but the cutting may not be made properly.

Accordingly, the ultrasonic horn 140 employs a configuration in which the positive pressure cylinder 610 is always pressed to the cutting protrusion 210 at a proper pressure.

The constant pressure cylinder 610 is a pneumatic cylinder that maintains a constant pressure at all times by releasing air supplied when a pressure equal to or higher than a set pressure is applied.

Specifically, the main body 150 including the ultrasonic horn 140 is coupled to the rod 611 side of the positive pressure cylinder 610 by the bracket 151.

Therefore, the ultrasonic horn 140 maintains a pressure contact with the cutting protrusion 210 of the roll jig 200 at a predetermined proper pressure while the cutting is in progress.

In the above configuration, the ultrasonic horn 140 is further provided with a mass lifting cylinder 620 so as not to interfere when loading the fabric into the roll jig 200.

Specifically, the mass lift cylinder 620 is fixed to the frame 810 while the positive pressure cylinder 610 is coupled to the rod 621.

Accordingly, the mass lift cylinder 620 vertically lifts the body 150 including the ultrasonic horn 140 and the positive pressure cylinder 610 integrally.

In the above configuration, the roll jig 200 has an inclined surface formed on the side of the cutting protrusion 210, and is formed in a pointed end portion.

Therefore, during the cutting process of the fabric through the ultrasonic horn 140, the back surface of the fabric is more smoothly cut by linear contact with the cutting protrusion 210, and the finished portion of the fabric is neatly finished at the same time as the heat-sealing on the inclined surface. The advantage is that no deadline is required.

Although the present invention has been shown and described with reference to certain preferred embodiments, the present invention is not limited to the above-described embodiments and has ordinary skill in the art to which the present invention pertains without departing from the concept of the present invention. Various changes and modifications are possible by the user.

As described above, the present invention cuts the fabric using ultrasonic waves, and thus realizes a sewing-free method, and at the same time, the cutting portion is not cured and heat-sealed, so that the finishing portion is excellent.

In addition, the present invention has the effect of improving the efficiency of cutting work because the cutting work is automatically carried out by loading the fabric into the roll jig.

In addition, the present invention, instead of being fixed to the ultrasonic horn, the roll jig loaded with the fabric is rotated and linearly moved so that the cutting proceeds, thereby minimizing the work radius, thereby improving space utilization and simplifying and miniaturizing the device.

In addition, the present invention, the fabric is fixed to the roll jig by the air suction method and magnetic force has the effect that the damage is prevented.

Claims (12)

An ultrasonic horn to which ultrasonic energy is applied; The fabric to be cut is wrapped in the outer diameter portion, the cutting protrusion is formed to match the outer line of the shape to be cut to the outer diameter portion to support the back of the fabric, the ultrasonic energy applied to the ultrasonic horn is A roll jig which is linearly moved along an axis line which is rotated and rotated so as to oscillate along the cutting protrusion; A first driving part rotating the roll jig; And Ultrasonic cutting device including a second driving unit for linearly moving the roll jig along the axis of rotation thereof. The method of claim 1, The first driving unit, A first shaft on which one end of the roll jig is axially coupled; A moving block rotatably supporting the first shaft; And And a first motor installed on the moving block to provide a rotation driving force to the first shaft. The method of claim 2, A sensing plate installed at the other end of the first shaft; A detection sensor installed on a rotation path of the detection plate to detect the presence of the detection plate; And Ultrasonic cutting device further comprises a control unit for collecting the signal of the sensor to control the position of the roll jig. The method of claim 2, Ultrasonic cutting device further comprises a fixing means for fixing the fabric to the outer diameter of the roll jig. The method of claim 4, wherein The fixing means, A plurality of intake holes formed through the outer diameter portion of the roll jig toward the center portion; A first passage formed therein along an axis line of the roll jig and communicating with the intake hole; A second passage formed therein along the axis of the first shaft and communicating with the first passage; An intake pipe having one end positioned inside the roll jig by sequentially passing the second passage and the first passage; And And an intake motor coupled to the other end of the intake pipe to intake air in the first passage to the outside. The method of claim 4, wherein The fixing means, the ultrasonic cutting device comprising a fixing projection which is formed in the same trajectory as the cutting projection in the outer diameter portion of the roll jig is fitted to the back of the fabric. The method of claim 4, wherein The fixing means, the ultrasonic cutting device including a plurality of magnets for fixing the fabric to the outer diameter portion of the roll jig by magnetic force. The method of claim 2, The second driving unit, A second shaft penetrating the moving block in an axial direction of the first shaft and spirally coupling the moving block; A second motor coupled to one end of the second shaft to provide a rotation driving force to the second shaft; A bearing block coupled to the other end of the second shaft to rotatably support the second shaft; And Ultrasonic cutting device comprising a rail for guiding the moving block on the axis is installed in the male and female structures on the main table is installed with the moving block and the moving block. The method of claim 1, The cutting protrusion is an ultrasonic cutting device, characterized in that the inclined surface formed on the side. The method according to any one of claims 1 to 9, The ultrasonic horn is coupled to the positive pressure cylinder, the ultrasonic cutting device characterized in that the cutting projection is maintained at a predetermined pressure. (a) loading the fabric into the outer diameter of the roll jig; (b) rotating the roll jig to control an exact position with respect to an ultrasonic horn; (c) oscillating ultrasonic energy on the fabric loaded in the roll jig in step (b); And and (d) rotating and linearly moving the roll jig so that the ultrasonic energy oscillated in the step (c) is oscillated along the outline line of the shape of the fabric to be cut. The method of claim 11, Step (c) is, And the ultrasonic horn oscillates ultrasonic energy by pressurized contact with the roll jig at a constant pressure state.

Images