KR20040083257A - Driving apparatus of embroidering frame - Google Patents

Abstract

PURPOSE: A driving device of an embroidering frame is characterized by containing many X-driving devices and Y-driving devices, connecting a first driving body and a second driving body with each shifting device of the X-driving devices and the Y-driving devices, moving many driving devices identically and returning the driving devices to an original shift position easily. The driving device is capable of manufacturing embroidery having high quality. CONSTITUTION: A driving device of an embroidering frame(200) comprises: the embroidering frame(200) which is set on an upper side of a sewing table(100), being capable of moving in an X and a Y directions; many X-driving devices(300) containing driving sources separately and transferring the embroidering frame(200) in the X direction; many Y-driving devices(400) containing driving sources separately and transferring the embroidering frame(200) in the Y direction; a first driving body(500) connected with at least one X-driving devices directly and driven in the X direction only; and a second driving body(600) connected with at least one Y-driving devices directly and driven in the Y direction only.

Description

Embroidery frame driving device {DRIVING APPARATUS OF EMBROIDERING FRAME}

The present invention relates to a driving device of the embroidery machine. More specifically, in the case of an embroidery machine having a plurality of driving mechanisms each including a driving source, such as an embroidery machine having a linear motor as a driving source, one side of the embroidery frame in a state where embroidery work is stopped. When the external force is applied to the site, the plurality of drive mechanisms can be easily returned to the original moving position by moving the same without shifting each other separately, and relates to an embroidery frame driving apparatus capable of performing a stable embroidery work.

In general, X-drive mechanisms and Y-drive mechanisms are widely known as driving apparatuses for moving embroidery frames to which work fabrics are fixed, as rotating sources such as pulse motors and servo motors, respectively. Such a drive mechanism requires a switching mechanism for converting the rotational motion of the motor into a linear motion in order to move the embroidery frame in the X and Y directions. Examples of such a power switching mechanism include a belt and a pulley mechanism.

However, as described above, the X-drive mechanism and the Y-drive mechanism include a plurality of X-drive mechanisms and a plurality of Y-drive mechanisms to stably move the embroidery frame, and the driving source is driven by each rotary motor. Drive the instruments.

Due to this, the conventional drive device has not only a lot of parts and a complicated structure, but also when the embroidery work is carried out using the embroidery machine using the conventional drive device, the noise is not very severe and the embroidery frame is not precisely moved. There was a problem falling.

In addition, it is difficult to improve the accuracy of the embroidery frame drive control due to the backlash between the mechanical parts of the power switching mechanism.

In order to solve this problem, an X-drive mechanism for moving the embroidery frame and an embroidery machine using a drive source of the Y-drive mechanism as a linear motor have been developed. However, the embroidery machine using the linear motor as a driving source can provide excellent embroidery quality because the noiseless and precise movement of the embroidery frame is possible. However, in the case of a multi-head embroidery machine, a plurality of linear motors should be used. Therefore, the embroidery frame drive device using the linear motor as a drive source requires a plurality of drive mechanisms each having a drive source individually.

As an example of an already known embroidery frame driving apparatus using a plurality of driving mechanisms each having a driving source as described above, FIG. 1 illustrates an exploded perspective view of the embroidery frame driving apparatus of a multi-head embroidery machine using a linear motor as a driving source. .

1, there are a plurality of X-drive mechanisms 20 and a plurality of Y-drive mechanisms 30 each of which has a linear motor as a drive source, each of which has a conventional linear motor as a drive source. The mechanisms include the rollers 22a and 32a mounted on the movers 22 and 32 of the linear motor and the rollers 22a and 32a in which the grooves 11 and 12 are formed on the lower side of the embroidery frame 10. It can be seen that the embroidery frame 10 is configured to move in the X direction by the X-drive mechanism 20 and to be relatively moved in the Y direction by the Y-drive mechanism 30.

By the way, when the embroidery machine having the X-drive mechanism and the Y-drive mechanism 20 and 30 as described above is arbitrarily touched, for example, one end of the embroidery frame, the embroidery frame as shown in FIG. This may shift. That is, the drive mechanism for driving the embroidery frame is a linear motor, and the mover of the linear motor is movable by a weak external force due to the above-described structure, and the embroidery frame is made of a metal material (aluminum) that is easy to bend. In other words, because the embroidery frame is not a rigid structure, even if external force is applied to both ends of the embroidery frame, the force cannot be transmitted to the other end in the same way, so the embroidery frame is bent and the embroidery frame as a whole is displaced. If the embroidery frame is slightly displaced, the position of the mover of the linear motor connected thereto is changed in the same way.

Therefore, if the embroidery frame is moved or touched due to the operator's carelessness while stopping by the error or stopping the machine for a while, only the mover of the linear motor in the position where the embroidery frame is displaced can change the quality to obtain high quality embroidery results. There is a problem that occurs, a problem that takes a lot of time to correct the shifter position of the shifted linear motor to the same as the positioner of the other linear motor.

This problem becomes more serious as a large-scale embroidery machine, in order to solve this problem, when the embroidery frame is a rigid structure, there is a problem that more load is generated and the speed and precision are lowered.

Therefore, in the embroidery frame drive device which is moved by a plurality of X-drive mechanisms and Y-drive mechanisms each having a drive source individually, such as an embroidery frame drive having a linear motor as a driving source described as an example, to a specific portion of the embroidery frame. There are many demands in the art for the embroidery frame drive device driven by a plurality of X-drive mechanisms and Y-drive mechanisms, each having a drive source, where the position of the embroidery frame does not shift by the movement of individual movers even when a force is applied. Existed.

In order to solve the above problems, the present invention provides a plurality of X-drive mechanisms and Y-drive mechanisms that prevent displacement of the embroidery frame when external force is applied to a specific portion of the embroidery frame while the embroidery work is stopped. An object of the present invention is to provide an embroidery frame driving device driven by.

It is another object of the present invention to provide an embroidery frame drive device capable of performing a stable embroidery operation since the plurality of X-drive mechanisms and Y-drive mechanisms can be easily returned to their original moving positions by moving in the same manner without shifting individually. It is done.

Furthermore, the present invention provides a embroidery frame drive device which enables high quality embroidery by preventing the embroidery frame from shifting by external force in a multi-head embroidery machine using a plurality of X-drive mechanisms and Y-drive mechanisms. The purpose.

1 is an exploded perspective view of a driving apparatus having a conventional embroidery frame and a linear motor

2 is a view showing a case in which a force is applied to one end of the embroidery frame in FIG.

3 is a plan view of the embroidery frame driving apparatus of the embroidery machine according to the present invention

Figure 4 is an enlarged view of a part of the connecting portion of the embroidery frame and the first drive and the second drive in Figure 3

FIG. 5 is a plan view of an X-drive mechanism or a Y-drive mechanism directly connected to the first and second drives in FIG.

Figure 6 is a cross-sectional view of the coupling structure of the embroidery frame and the second drive body according to the present invention

7 is a perspective view showing the structure of the connection member in the coupling structure of FIG.

8 is a plan view of the embroidery frame driving apparatus of the embroidery machine showing another embodiment.

9 is a partial cutaway perspective view illustrating a connection state of the Y-axis drive mechanism and the second driving member of FIG. 8;

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

(100) Sewing table (110) opening

Table media with 200 openings Embroidery frame

(210) Connecting member (211) First roller

(212) Second roller (300) (700) X-drive mechanism

(400) (800) Y-drive mechanism 310 (410) fixed base plate

(320) (420) Stator (330) (430) Straight Rail

(340) (440) mover (350) (450) fixed plate

(360 (460) Spacer 500 First Drive

(600) the second driving body 610 the groove formed in the second driving body

(810) Mover (811) spacer

(720) (820) Screw rods (730) (830) Motor

(840) Linear Rails (850) Linear Guides

(860) frame member

In order to achieve the above object, the present invention provides an embroidery machine, which is located on the upper surface of the sewing machine as an embodiment, which is movable in both X and Y directions, and a driving source for moving the embroidery frame in the X direction, respectively. At least one X-drive mechanism, a plurality of Y-drive mechanisms each having a drive source for moving the embroidery frame in the Y direction, and a first driven only in the X direction directly coupled with the at least one X-drive mechanism The present invention provides an embroidery frame driving apparatus including a driving body and a second driving body driven only in the Y direction directly coupled to the plurality of Y-drive mechanisms.

The present invention provides an embroidery frame driving apparatus in which the first driving body is coupled to the short side of the embroidery frame and the second driving body to the long side of the embroidery frame and the connecting member.

The present invention provides an embroidery frame driving device having a configuration in which the second roller is coupled to the upper surface in a zigzag shape and the first roller protrudes and coupled to the lower surface as an embodiment.

The present invention is an embodiment, the first roller of the connection member is rotatably coupled to the groove formed on the lower surface of the side coupled to the embroidery frame of the first driving body and the second driving body, the first roller is formed The other end of the end and the upper surface of the embroidery frame provides an embroidery frame drive unit is coupled by a coupling means.

The present invention provides an embroidery frame driving apparatus in which the second roller of the connection member is rotatably seated with a groove formed in the connection member.

The present invention provides an embroidery frame driving apparatus in which the X-drive mechanism and the Y-drive mechanism are a linear motor.

According to an embodiment of the present invention, an embroidery frame includes a base plate to which the linear motor is fixed, a stator mounted to the base plate, a rail disposed on both sides of the stator, and a mover movable along the rail. It provides a driving device.

The present invention provides, as an embodiment, an embroidery frame drive configured to magnetically maintain a gap between the mover and the stator.

In one embodiment, a magnetic coil is formed on a bottom surface of the mover, and the stator is positioned to face the mover and provides an embroidery frame driving device configured to have permanent magnets in a line in the longitudinal direction.

The present invention provides an embroidery frame driving apparatus in which the first driving body and the second driving body are directly coupled to an upper side of a plate fixed to an end of the mover and an upper surface of the sewing table.

According to an embodiment of the present invention, the fixed plate, the coupling between the first driving body and the second driving body may be X, Y of the first driving body and the second driving body with respect to the sewing table via a spacer. Provided is an embroidery frame drive made through an open portion over the entire range of directions.

The present invention provides, as one embodiment, an embroidery frame drive device in which the opening portion is covered by a table medium having an opening through which the spacer moves.

The present invention provides an embroidery frame driving apparatus in which the X-drive mechanism and the Y-drive mechanism are ball screw mechanisms.

The present invention in the embodiment the ball screw mechanism is a screw rod freely rotatably supported in the interior of the frame member having a U-shaped cross section, a mover having a nut member screwed to the screw rod and the forward and reverse rotation of the screw rod It provides an embroidery frame drive device including a motor to make.

The present invention provides an embroidery frame drive device in which the screw rod is formed in the longitudinal direction inside the frame member, and linear guides are correspondingly fixed to both sides of the mover screwed to the screw rod. .

The present invention provides an embroidery frame driving device that the linear guide is coupled to the linear rail installed in parallel with the screw rod on the inner surface of the frame member to prevent rotation of the mover.

The present invention provides an embroidery frame driving apparatus in which the mover, the first drive body, and the second drive body are coupled to each other via a spacer attached to an upper surface of the mover.

Hereinafter, the technical configuration of the present invention will be described in detail with reference to the accompanying drawings.

First, referring to the overall configuration of the embroidery frame drive device of the present invention with reference to Figures 3 to 5, Figure 3 of the embroidery frame drive device according to the invention in particular a plurality of X-drive mechanism and Y-drive linear motor The overall plan view of the embroidery frame drive device used is shown. In this figure, the embroidery frame 200 is located on the upper surface of the sewing table 100, and the embroidery frame 200 is assembled to be movable in the X and Y directions on the upper surface of the sewing table 100.

In addition, the lower surface of the sewing table 100 as a X-drive mechanism for applying a driving force in the X direction to move the embroidery frame 200 in the X direction, the two linear motor 300 and the embroidery frame 200 Three linear motors 400 are respectively disposed as Y-drive mechanisms for giving a driving force in the Y direction to move in the Y direction. In addition, the two X-drive mechanism linear motor 300 is the first drive body 500 and the three Y-drive mechanism linear motor 400 is directly connected to the second drive 600 is the embroidery frame 200 ) Is coupled by the connecting member 210.

In order to examine in more detail the coupling relationship between the first driving member and the second driving member, the connecting member 210 and the embroidery frame 200, the embroidery frame is connected to the first driving member and the second driving member in FIG. 3. 4, which shows a plan view in which part of the portion is enlarged. 4, a first driving member 500 is connected to one short side of the embroidery frame 200 located on the upper surface of the sewing table 100, and a first long side to the other long side of the embroidery frame 200. It can be seen that the two driving units 600 are connected.

As shown in FIG. 3, the short side of the embroidery frame 200 and the first driving body 500 are located at three locations at regular intervals, and the long side and the second driving member 600 of the embroidery frame 200 are at regular intervals. 6 is coupled to the connecting member 210 having the first roller 211 and the second roller 212 in six places.

The first driver and the second driver 500 and 600 are the movers 340 and 440 constituting the linear motors 300 and 400 which are X-drive mechanisms and Y-drive mechanisms, respectively. Directly coupled directly on the upper surface of the), is configured to be driven in the X, Y direction respectively.

Therefore, the embroidery frame 200 is movable in the X direction by the first driving member 500 directly coupled to the at least one linear motor 300 which is the X-drive mechanism, and the plurality of linear motors 400 which are the Y-drive mechanism. The second driving member 600 coupled directly may move in the Y direction.

Next, the connection relationship between the X-drive mechanism and the Y-drive linear motors 300 and 400 which constitute the embroidery frame drive apparatus according to the present invention and other related members will be described. Since they are equal in configuration, they explain the construction of one arbitrarily selected (connection relationship between Y-drive linear motor and other related members) and the other side (connection relationship between X-drive linear motor and other related members). The description will be omitted.

FIG. 5 shows a plan view of one X-drive mechanism or Y-axis drive mechanism, wherein the components of the X-drive mechanism and the Y-drive mechanism are the same, and the preceding numerals in the reference numerals refer to the X-drive mechanism. And the latter number is for the Y-drive mechanism. Hereinafter, with reference to Figure 5 looks at the coupling relationship between the configuration of the Y-drive mechanism and the second drive.

First, the structure and driving principle of the linear motor 400 which is a Y-drive mechanism will be described. The linear motor includes a fixed base plate 410, a stator 420 mounted on the base plate 410, and the stator 420. Mover 440 that can move in a straight line with respect to stator 420 under the control of a pair of straight rails 430 disposed on both sides of the &lt; RTI ID = 0.0 &gt; Is provided.

Preferably, the gap is magnetically maintained between the mover 440 and the stator 420 so that the mover 440 smoothly moves along the stator 420.

Although it is possible to use various linear motors as the X-drive mechanism 300 and the Y-drive mechanism 400 according to the present invention, the linear motor has a mover 440 having a magnetic coil (not shown) formed on the bottom thereof. Preferably, the stator 420 preferably has permanent magnets (not shown) in a line in the longitudinal direction while being positioned to face the mover 440.

In addition, a linear scale (not shown) is longitudinally attached to one of the pair of straight rails 430 to allow movement of the mover 440 by a sensor (not shown) based on its position relative to the linear scale. It may also be possible to detect the position.

Meanwhile, as shown in FIG. 5, the mover 440 is provided with a fixed plate 450 at an end portion extending in both sides, and the fixed plate 450 is disposed on the upper surface of the sewing table 100. On the upper side, the second driving member 600 is coupled by three bolts through the spacer 460 (see FIGS. 6 and 7). Coupling of the fixed plate 450 and the second drive member 600 is performed through the open part 110 opened over the entire range of the second drive member 600 in the Y direction with respect to the sewing machine table 100. (See Figure 3). The opening 110 is covered with a table medium 120 having an opening through which the spacer 460 can move (see FIG. 3). By this structure, the second drive member 600 is directly connected to the mover 440 of the linear motor located on the lower surface of the sewing table 100.

6 and 7 will be described in more detail with respect to the coupling configuration of the first driving body, the second driving body 500, 600 and the embroidery frame 200 coupled by the connecting member 210. . Since they are equal in structure to each other, the configuration of one arbitrarily selected (combination configuration of the second drive body and the embroidery frame) will be described, and the description of the other side (combination configuration of the first drive body and the embroidery frame) will be omitted.

6 is a cross-sectional view illustrating a coupling configuration of the Y-drive mechanism 400 and the embroidery frame 200. As described above, the second drive body 600 is a Y-drive mechanism 400 of the linear motor. It is coupled with the mover 440.

6 and 7, the connecting member 210 has a zigzag shape in which a second roller 212 is coupled to an upper surface thereof, and a first roller 211 protrudes and is coupled to a lower surface thereof. It is seated in a groove formed inside the connecting member and is rotatably coupled. In addition, the second driver 600 has a groove 610 that is open on the lower surface of the side coupled to the embroidery frame 200, the first roller 211 is the groove 610 of the second driver. It is seated on) and coupled freely.

As such, the connection member 210 is connected to the second driving member 600 through the first roller 211, and is coupled to the upper surface of the embroidery frame 200 to the other end side to which the first roller 211 is coupled. It is directly coupled by means, for example, bolts, etc. to connect the embroidery frame 200 and the second driving member 600, the first roller 211 and the second of the connecting member 210 The movement of the Y-drive mechanism 400 is easily transmitted to the second drive member 600 and the embroidery frame 200 by the connection structure of the roller 212.

By the above configuration, the embroidery frame 200 is movable by the second driving member 600 in the Y direction and slidable in the X direction by the first driving member 500.

Of course, the coupling relationship between the first driving member 500 and the connecting member 210 of the embroidery frame 200 is also omitted in the same relationship as the coupling form of the second driving member 600 described above.

Embroidery frame driving apparatus of the embroidery machine of the present invention constructed and operated as described above is a plurality of X-drive mechanism 300, Y-drive mechanism 400 each of the movers of the linear motor, the first drive body 500, When the force is applied to one part of the embroidery frame while the embroidery work is stopped by being directly coupled to the two driving bodies 600, the plurality of movers can easily return to their original moving positions by moving the same without shifting each other individually. It is also possible to perform a stable embroidery work.

Another embodiment of the present invention is a drive device employing a ball screw mechanism as an X-drive mechanism and a Y-drive mechanism as shown in Fig. 8, which is the above-described X-drive mechanism and Y-drive mechanism. The coupling relationship between the embodiment using the linear motor and the remaining components is the same, but differs in that the ball screw mechanism is used instead of the linear motor as the driving mechanism.

More specifically, the technical configuration of the ball screw mechanism will be described in detail with reference to FIGS. 8 and 9. 8 is a plan view of an embroidery frame driving device according to another embodiment of the present invention, and FIG. 9 is a partial cutaway perspective view illustrating a configuration of a Y-drive mechanism and a connection state of the Y-drive mechanism and a second drive body. The connection relationship between the component of the Y-drive mechanism and the Y-drive mechanism and the second drive is shown in Fig. 1, and the connection relationship between the component of the X-drive mechanism and the X-drive mechanism and the first drive is equal. Next, a detailed description of the configuration of the X-drive mechanism and the connection relationship between the X-drive mechanism and the first drive will be omitted.

As shown in FIG. 9, the ball screw mechanism includes a screw rod 820 rotatably supported inside the frame member 860 having a U-shaped cross section, and a nut member screwed to the screw rod 820. It consists of a motor 830 for forward and reverse rotation of the mover 810 and the screw rod 820 having a. The screw rod 820 is formed along the longitudinal direction of the inside of the frame member 860. As shown in FIG. 9, the linear guide 850 is correspondingly fixed to both side surfaces of the mover 810 screwed to the screw rod 820.

Each linear guide 850 is correspondingly supported to the linear rail 840 installed in parallel with the screw rod 820 on the inner surface of the frame member 860, which prevents the rotation of the mover 810 It also has a function. The spacer 811 is attached to the upper surface of the mover 810 to be coupled to the second driver 600.

Accordingly, since the ball screw mechanisms 700 and 800 also have movers as X-drive mechanisms and Y-drive mechanisms, the movers are directly coupled to the first drive body and the second drive body, respectively, as described above. Do not allow movers to move individually by external forces.

The present invention is not limited to the specific embodiments described above, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention as claimed in the claims. Such changes are intended to fall within the scope of the claims.

In the embroidery frame driving apparatus having a plurality of X-drive mechanisms and Y-drive mechanisms each having a drive source separately, the present invention relates to a first drive body, each mover of the plurality of X-drive mechanisms and Y-drive mechanisms. By providing a structure that is directly coupled to the two driving bodies, when external force is applied to one part of the embroidery frame while the embroidery work is stopped, the multiple driving mechanisms move in the same manner without being displaced individually, so that they move to the original moving position. Can be easily returned. Therefore, according to the embroidery frame driving apparatus of the present invention, a high-quality embroidery workpiece can be obtained regardless of the positional change of the movers of the plurality of X-drive mechanisms and the Y-drive mechanisms, and the time required to correct the mover position It is a useful invention that can contribute to the development of the industry can not only consume a stable embroidery work but also work convenience by not consuming.

Claims (17)

An embroidery machine comprising: an embroidery frame positioned on an upper surface of a sewing table and movable in both X and Y directions, one or more X-drive mechanisms each having a driving source for moving the embroidery frame in the X direction, and the embroidery frame in the Y direction A plurality of Y-drive mechanisms each having a driving source to be moved to each other, a first drive driven only in the X direction directly coupled to the at least one X-drive mechanism, and directly coupled to the plurality of Y-drive mechanisms Embroidery frame drive device including a second drive unit driven in the Y direction only. The embroidery frame driving apparatus of claim 1, wherein the first driving body is coupled to a short side of the embroidery frame and the second driving body is connected to a long side of the embroidery frame by a connecting member. The embroidery frame driving device of claim 2, wherein the connecting member has a zigzag shape in which a second roller is coupled to an upper surface and a first roller protrudes and coupled to a lower surface. The first roller of the connecting member is rotatably coupled to a groove formed on the lower surface of the side of the first driving body, the side of the second driving body to be coupled to the embroidery frame, the end of the first roller is formed Embroidery frame driving device is coupled to the other end and the upper surface of the embroidery frame by the coupling means. The embroidery frame driving device of claim 2, wherein the second roller of the connection member is rotatably seated with a groove formed in the connection member. The embroidery frame drive device according to any one of claims 1 to 5, wherein the X-drive mechanism and the Y-drive mechanism are linear motors. 7. The embroidery frame driving apparatus of claim 6, wherein the linear motor includes a fixed base plate, a stator mounted to the base plate, a rail disposed on both sides of the stator, and a mover movable along the rail. 8. The embroidery frame driving apparatus of claim 7, wherein the distance between the mover and the stator is magnetically maintained. 9. The embroidery frame driving apparatus of claim 8, wherein a magnetic coil is formed on the bottom of the mover, and the stator is positioned to face the mover and has permanent magnets in a line in the longitudinal direction. 10. The embroidery frame driving apparatus according to any one of claims 7 to 9, wherein an upper side of the plate fixed to an end of the mover, the first driving body, and the second driving body are directly coupled to an upper surface of the sewing table. 12. The method of claim 10, wherein the coupling between the fixed plate, the first driver, and the second driver is transferred in the X, Y direction of the first and second drives relative to the sewing table via a spacer. Embroidery frame drive through the open opening over the range. 12. The embroidery frame drive device according to claim 11, wherein said opening portion is covered by a table medium having an opening through which said spacer moves. The embroidery frame drive device according to any one of claims 1 to 5, wherein the X-drive mechanism and the Y-drive mechanism are ball screw mechanisms. The screw screw mechanism of claim 13, wherein the ball screw mechanism comprises a frame member having a U-shaped cross section, a screw rod rotatably supported inside the frame member, a nut member screwed to the screw rod, and the screw rod. Embroidery frame drive including forward and reverse rotating motor 15. The embroidery frame driving apparatus of claim 14, wherein the screw rod is formed in the longitudinal direction of the frame member, and linear guides are correspondingly fixed to both side surfaces of the mover screwed to the screw rod. The embroidery frame driving device of claim 15, wherein the linear guide is coupled to and supported by a linear rail installed in parallel with a screw rod on an inner surface of the frame member to prevent rotation of the mover. The embroidery frame driving apparatus of any one of claims 14 to 16, wherein the mover, the first driver, and the second driver are coupled to each other via a spacer attached to an upper surface of the mover.