KR20020066549A - Sewing position mark device for multi head sewing machine - Google Patents

Abstract

PURPOSE: A mark device of a sewing position for a multi-head sewing machine is provided which is characterized by moving a main frame in directions of x-axis and y-axis to program in a state that a beam scanned from a laser pointer is situated at a line described on textile, reducing working time, increasing efficiency of work and making it possible to observe a working process easily. CONSTITUTION: The mark device of the sewing position for the multi-head sewing machine is comprised of: a table(4); a main frame(20) which is installed on an upper side of the table, being possible to move; an x-axis linear scale(38) and a y-axis linear scale(40) which are installed on the table, measuring migration length of the main frame(20); an x-axis driving motor and a y-axis driving motor which are installed on a lower part of the table, transferring the main frame(20) in directions of x-axis and y-axis; a netting needle(12) installed on an arm(10) situated on an upper part of the main frame(20) and moved up-and-down; an indicating part which is installed on the arm(10), showing a falling point of the netting needle(12); a control part connected with the x-axis and the y-axis driving motors, the indicating part, and the x-axis and the y-axis linear scales; and an operating unit(44) connected with the control part.

Description

Sewing position display device for multi-head sewing machine {SEWING POSITION MARK DEVICE FOR MULTI HEAD SEWING MACHINE}

The present invention relates to a sewing position display device for a multi-head sewing machine, and more particularly, to move the main frame in the x- and y-axis directions while the beam scanned from the laser pointer is positioned at the line of the pattern so that the pattern can be programmed. In addition, it is possible to easily grasp the single yarn or the bad sewing position that occurs when working with a complicated pattern with the laser pointer beam, and at the same time, the operator can always observe the falling position of the needle bar during the sewing work. A sewing position display apparatus for a head sewing machine.

In general, a multi-type sewing machine is a two-axis positioning control device in which the main frame fixing the fabric is horizontally moved in the x-axis direction and the y-axis direction while the needle bar of the sewing machine capable of sewing is up and down.

Such a multi-type sewing machine is a user tends to diversify the characteristics of the machine by programming a variety of shapes as needed.

The prior art is a table 102 is configured as shown in Figure 6, the table 102, the main frame 104 is moved in the horizontal direction by receiving power from the x, y-axis drive motor not shown Is installed, the arm 106 is located on the main frame 104, the fixed position on the table 102.

And the main frame 104 is fixed to the fabric 108, which is a work object to be able to perform a variety of sewing work.

In addition, the tip of the arm 106 is provided with a needle bar 110 for vertically moving up and down on the main frame 104, the needle bar 110 from the main shaft motor not shown in the lower portion of the table 102 It works by receiving power.

Subsequently, x and y-axis linear scales 112 and 114 for checking the moving distance of the main frame 104 are respectively provided on the table 102, and the control unit is provided on the x and y-axis linear scales 112 and 114, respectively. 116 is connected, the operation unit 118 is connected to the control unit 116.

Referring to the operation of the conventional technology configured as described above is as follows.

First, when a signal is transmitted to the control unit 116 through the operation unit 118 in order to sew, the control unit 116 transmits a command to the main shaft motor (not shown) and the needle bar 110 installed on the arm 106. ) Up and down.

At the same time, the main frame 104 is horizontally moved in the x and y axis directions by the power provided from the x, y axis driving motor, which is not shown. As a result, the pattern input to the control unit 116 is the main frame. The fabric 108 is sewn to the fabric 108 fixed to the 104.

In order to sew various shapes on the fabric 108 as described above, various patterns must be programmed and stored in the control unit 116. In order to do such a work, the original degree is first stored in the main frame 104. Fix it.

Then, by rotating the pulley of the main shaft motor (not shown) to lower the needle bar 110 installed on the arm 106, the lower end of the needle bar 110 is in contact with the line of the circular diagram drawn. When it is confirmed that the needle bar 110 is in contact with the line of the design as described above, the operator to rotate the pulley of the main shaft motor again to raise the needle bar 110 to be spaced apart from the original degree.

Subsequently, the operator manually moves the main frame 104 by a predetermined distance in the x and y-axis directions, predicts and moves the position where the needle bar 110 descends, and rotates the pulley of the main shaft motor as described above. Lowering 110 causes the lower end to contact the line of the design.

When the main frame 104 is moved along the line of the pattern drawn on the fabric 108 as described above, the x, y axis linear scales 112 and 114 check the moving distance of the main frame 104 to control the control unit. Forwarded to (116). Therefore, the program stored in the control unit 116 programs the shape of the pattern based on the moving distance of the mainframe 104.

When the operator wants to selectively work on the programmed drawing, the drawing is selected through the operation unit 118, so that the same shape of the pattern on the cloth 108 is continuously operated by the needle bar 110 which operates up and down. Let it work

In the above-described conventional technique, the operator has to manually operate the needle bar up and down by manual operation to program the pattern, and position the needle bar at each point of the drawing, which makes the work cumbersome and the time required for work. There is a problem that the work efficiency is degraded due to considerable consumption.

Another problem is that a single yarn or a bad sewing position occurs when working with a complicated pattern. At this time, the needle bar is lowered by manual operation to check the sewing position, and the point is checked, thereby reducing work efficiency.

Another problem is that it is not possible to check the descending position of the needle bar at any time during the sewing operation, and there is a drawback that the current working progress cannot be observed.

An object of the present invention is to move the mainframe in the x- and y-axis directions so that the pattern can be programmed while the beam scanned from the laser pointer is positioned on the line of the pattern drawn on the fabric, so that the pattern can be programmed. The purpose is to improve work efficiency due to reduced time.

Another object is to make it possible to easily grasp the single yarn or the bad sewing position generated when working with a complicated design by means of the laser beam scanned from the laser pointer, thereby making the work simpler and improving the efficiency.

Another object of the present invention is to make it possible to always grasp the falling position of the needle bar during the sewing process, so that the current work progress can be easily observed.

The present invention for realizing this, a main frame is installed on the table, the main frame is slip-movable, x, y-axis linear scale on the table to check the moving distance of the main frame, and the lower table X and y axis drive motors installed in the main frame to horizontally move the main frame in the x and y axis directions, a needle bar installed in the arm positioned above the main frame, and moving up and down, and installed in the arm to lower the needle bar. And a control unit for connecting the x and y axis drive motors, the indicator and the x and y axis linear scales, and an operation unit connected to the control unit.

1 is a perspective view showing a state in which the present invention is installed in the sewing machine.

Figure 2 is a detailed view showing a state in which the laser pointer of the present invention is installed on the arm.

3 is a plan view schematically showing the sewing machine.

Figure 4 is a schematic diagram showing a state in which the components of the present invention are connected to the control unit.

5 is a flow chart showing the operational relationship of the present invention.

Figure 6 is a perspective view of the prior art.

<Explanation of symbols for the main parts of the drawings>

2: sewing machine 4: table 6: block

8: thread feeder 10: arm 12: needle bar

14: Instructions 16, 32: Bracket 18: Laser pointer

20: main frame 22: cloth 24, 30: belt

26: X axis drive motor 28, 36: Shaft 34: Y axis drive motor

38: X axis linear scale 40: Y axis linear scale 42: Control part

44: control panel

The sewing machine 2 constituting the present invention has a table 4 as shown in FIG. 1, and a block 6 is installed along the transverse direction at the rear of the table 4 and the upper part of the block 6. The seal supply unit 8 is installed at the front side of the block 6, and a plurality of arms 10 are disposed at a predetermined distance on the table 4 while each of the arms 10 is located forward.

And each arm 10 is provided with a needle bar 12 for sewing work up and down operable. At this time, the needle bar 12 is installed to operate by receiving power from the main shaft motor not shown in the lower portion of the table (4).

In addition, the tip portion of the arm 10 is provided with an indicator portion 14 for indicating the position of the lower position of the needle bar 12, as shown in Figure 2, the indicator portion 14 is a bracket fixed to the arm 10 is installed And a laser pointer 18 fixed to the bracket 16.

In this case, the laser pointer 18 is inclined at a predetermined angle so that the scanning point of the laser beam may be positioned at a position point at which the needle bar 12 descends.

Subsequently, as shown in FIG. 3, the main frame 20 horizontally moving in the x and y-axis directions is installed to fix the cloth 22 on the table 4, and at one end of the main frame 20, A belt 24 which transmits power so as to move in the axial direction is fixedly positioned while placing a portion of the other side under the table 4.

And one side of the belt 24 is provided with the x-axis drive motor 26 for providing power coupled to the shaft 28.

In addition, a portion of the front end of the belt 30 for transmitting power to the rear of the main frame 20 is coupled to the bracket 32, the y-axis drive motor 34 for providing power to the rear of the belt 30, the shaft It is installed while joining 36.

Meanwhile, on the table 4, x and y axis linear scales 38 and 40 for checking the moving distance of the main frame 20 are installed, respectively, and the x and y axis linear scales 38 and 40 are shown in FIG. As shown in the illustrated figure, a control unit 42 for collecting information or transferring commands is connected.

In addition, the control unit 42 is also connected to the x, y axis drive motors 26 and 34 and the laser pointer 18, and the control unit 42 is connected to an operation unit 44 on which various selection manuals are displayed. .

Referring to the operation of the present invention configured as described above are as follows.

First, when the operator selects the sewing operation initial position point mode displayed on the operation unit 44 (see FIG. 1) in order to program the drawing, the control unit 42 selects x. When the y-axis drive motors 26 and 34 (see FIG. 3) are operated to transmit power to the mainframe 20 through the shafts 28 and 36 and the belts 24 and 30, the mainframe 20 It moves horizontally on the table 4 and moves to the initial position of the sewing operation.

At this time, the circularity to be designed is fixed to the main frame 20 (see FIG. 2).

Referring to FIG. 5, the programming operation procedure of the original drawing in the above state is as follows.

First, the laser pointer 18 is turned on to program the drawing.

When the laser pointer 18 is turned on, the laser beam is scanned and positioned on the side of the circle fixed to the main frame 20.

After S1, the operator determines whether the position of the laser beam deviates from the designed circle. (S2)

If it is determined that the laser beam position is out of the original degree after S2, the X and Y axis driving motors 26 and 34 are operated.

When the operation unit 44 selects the operation mode 44 of the X and Y axis drive motors 26 and 34 as described above, the power is transferred from the X and Y axis drive motors 26 and 34 to the shafts 28 and 36 and the belt 24. The main frame 20 is horizontally moved by the transmitted power so that the line formed in the drawing of the original drawing is positioned in the laser beam to be scanned.

If it is determined that the laser beam scanned after the S2 is not out of the original degree, the drawing program is activated.

When the drawing program operation mode displayed on the operation unit 44 (see Fig. 1) is selected as described above, the moving distance of the main frame 20 (see Fig. 3) is set to the X and Y axis linear scales 38 and 40. Receives information on the moving distance of the main frame 20 is ready to draw a picture.

After S4, the X and Y axis driving motors 26 and 34 are operated.

When the operation mode of the X and Y axis drive motors 26 and 34 displayed on the operation unit 44 is selected as described above, the X and Y axis drive motors 26 and 34 operate to operate power as described above. Transfer to the main frame 20 to move horizontally in the X, Y axis direction.

At this time, the main frame 20 is moved while adjusting the operation of the X, Y axis drive motors 26 and 34 through the operation unit 44 so that the laser beam can move along the line of the drawing drawn on the original diagram.

After S5, the X and Y axis linear scales 38 and 40 check the moving distance of the main frame 20 and transmit the same to the control unit 42 (see FIG. 4).

As described above, when the main frame 20 moves, the X and Y axis linear scales 38 and 40 transmit information to the control unit 42 by checking the moving distance from time to time.

After the step S6, a program operating in the control unit 42 based on the moving distance of the main frame 20 completes the drawing.

As described above, the program operating in the control unit 42 receives the movement distance of the main frame 20 transmitted from the X and Y axis linear scales 38 and 40 from time to time, and takes the X and Y axis coordinate points on the program. You draw a design and complete it.

When the program to be designed is completed as described above, the program is saved on the program and the work is terminated.

On the other hand, if the user selects and executes the design mode displayed on the control unit 44 to use the design program stored in the control unit 42, the laser pointer 18 scans the laser beam at the lower point of the needle bar 12. .

At the same time, the needle shaft 12 is moved up and down while the main shaft motor, which is not shown in the lower part of the table 20, is operated to supply the thread from the thread supply part 8 to the cloth 22 fixed to the main frame 20. By sewing.

In addition, the main frame 20 is the X, Y axis by sequentially transmitting power through the shaft 28, 36 and the belts 24, 30 while the X, Y axis drive motors 26, 34 operate simultaneously. To move horizontally in the direction.

Therefore, the corresponding pattern selected by the operation unit 44 is sewn to the cloth 22 fixed to the main frame 20.

At this time, since the laser beam scanned by the laser pointer 18 is continuously positioned at the position where the needle bar 12 descends, the operator can easily observe where the needle bar 12 is currently sewing. It is in a state.

The present invention has a structure that can be programmed by moving the main frame in the x, y-axis direction in a state that the beam scanned from the laser pointer is located on the line of the pattern drawn on the fabric, work with the convenience of work There is an effect that can improve the work efficiency due to the reduction of time.

Another effect is that a single yarn or a bad sewing position generated when working with a complicated pattern can be easily identified by a beam scanned from a laser pointer, thereby simplifying work and improving efficiency.

Another effect is that the operator can always grasp the falling position of the needle bar during the sewing work, it is possible to easily observe the current work progress.

Claims (8)

Table, A main frame installed on the table to be slip-movable; An x- and y-axis linear scale installed on the table to read the moving distance of the main frame; An x and y axis driving motor installed below the table to horizontally move the main frame in the x and y axis directions; A needle bar installed on an arm positioned above the main frame to move up and down, An indication unit installed at the arm to display a needle bar lowering position point; A control unit connected to the x and y axis driving motors and the indicator unit and the x and y axis linear scales; Sewing position display device for a multi-head sewing machine, characterized in that consisting of a control unit connected to the control unit. The method of claim 1, The control unit sewing position display device for a multi-head sewing machine, characterized in that the program stored in the control unit to draw a picture based on the information on the moving distance of the main frame transmitted from the x, y axis linear scale. The method of claim 1, The control unit sewing position display device for a multi-head sewing machine, characterized in that when the needle bar is operating up, down, the indicator is operated. The method according to claim 1 or 3, The control unit sewing position display apparatus for a multi-head sewing machine, characterized in that when the needle bar is stopped, the indicator is operated. The method according to any one of claims 1 to 3, The indication unit sewing position display device for a multi-head sewing machine, characterized in that consisting of a laser pointer. The method of claim 4, wherein The indication unit sewing position display device for a multi-head sewing machine, characterized in that consisting of a laser pointer. The method of claim 5, When the X and Y axis drive motors are turned on and off in the operation unit and the X and Y axis drive motors are operated to move the beam of the laser pointer along the line of the drawing, information about the moving distance of the main frame is x. , The sewing position display device for a multi-head sewing machine, characterized in that the control unit is received from the y-axis linear scale to draw a pattern on the program. The method of claim 6, When the X and Y axis drive motors are turned on and off in the operation unit and the X and Y axis drive motors are operated to move the beam of the laser pointer along the line of the drawing, information about the moving distance of the main frame is x. , The sewing position display device for a multi-head sewing machine, characterized in that the control unit is received from the y-axis linear scale to draw a pattern on the program.