KR100596282B1 - Object transfer apparatus of sewing machine - Google Patents

Abstract

By enclosing a plurality of rollers extending in the transverse direction with respect to the sewing frame, the end portions of the to-be-sealed material of the to-be-seamed object which have spread the to-be-processed object in substantially loop shape are reliably supported, and a fringe is prevented by this.

In the object to be conveyed, the object is surrounded by four rollers 6 extending laterally with respect to the sewing frame and spread out in a substantially loop form, and is conveyed through the timing belt 15 along the loop. Both ends of the unfolded to-be-sealed object of the width direction are supported by the support member 17 attached to the timing belt 15, and the movement of the timing belt 15 in the state which supported the to-be-sealed object by the said support member 17 was carried out. Accompanying the to-be-sealed material is conveyed.

Description

Sewing machine transfer device of sewing machine {OBJECT TRANSFER APPARATUS OF SEWING MACHINE}

1 is a plan view showing a multi-head sewing machine according to an embodiment of the present invention;

2 is a cross-sectional view taken along line II of FIG. 1;

FIG. 3 is a perspective view showing the installation structure of the base material as part of the object to be conveyed shown in FIG. 1; FIG.

4 is a cross-sectional view showing an extract of a supporting member provided in the object to be conveyed shown in FIG. 1;

Fig. 5 is a perspective view showing an installation structure of a supporting member and a fixing member fitted thereto according to the embodiment;

6 is a cross-sectional view showing a state in which a to-be-processed object is supported by a to-be-processed object transport apparatus according to the embodiment; And,

It is a perspective view which shows an example of the edge support part regarding the cloth longitudinal direction of the to-be-processed object which can be applied to the to-be-processed object conveyance apparatus which concerns on the said Example.

<Explanation of symbols for major symbols in the drawings>

1: sewing machine frame 2: sewing machine head

3: kiln foundation 4: sewing material conveying device

5: base material 6: roller

7: base portion 8: slide rail

11 threaded rod 12 mover

13: X drive motor 14: pulley

15: timing belt 16: Y drive motor

17 support member 18 pin

19: positioning roller 20: holding member

21: support lever S: to-be-sealed

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewing material conveying device for sewing machine, and more particularly, to a sewing material conveying device for unfolding and transporting a sewing object to a plurality of rollers in a substantially loop form.

Japanese Laid-Open Patent Publication No. 2002-102567 (hereinafter referred to as 'Patent Document 1') includes a front roller and a rear roller extending in a left and right direction from the front and rear of a bed, respectively, with respect to a pair of left and right supports. Disclosed is a sewing frame in which a lower roller extending in a lateral direction from below is rotatably supported. One of the pair of supports provided in the sewing frame is mounted to the machine frame through the slide rail member, so that the slide can be slid left and right (X direction) with respect to the machine frame. A slide drive mechanism for driving the support in the X direction is connected to the slide rail member, and the sewing frame is driven in the X direction by the drive of the X drive motor of the slide drive mechanism.

A pair of left and right pulleys are provided at each of the left and right ends of each of the three rollers (front roller, rear roller and lower roller) included in the sewing frame, and each of the three rollers is wound around the pulley at each of the left and right ends. Interlocking is enabled by a pair of jeans. A ball spline shaft is inserted into each pulley, and each pulley is movable in the axial direction with respect to the ball spline shaft, and interlocked with the rotation of the ball spline shaft. One end of each of these ball spline shafts is rotatably mounted relative to the machine frame, and the sewing frame is guided by the ball spline shaft when driven in the X direction. Here, among the above-described ball spline shafts, the ones inserted into the pulleys provided at one end of the lower roller are not attached to the machine frame at the end thereof, but are attached to the Y drive motors. By driving, the three rollers are interlocked. In addition, "Y" points out the rotation direction of each roller here.

The interlocking belt is provided with a pair of mounting members that function as a cloth fixing mechanism, and the mounting members are crosslinked so as to cross the pair of interlocking belts along the X direction. By inserting a to-be-sealed object by this attaching member and a covering member to be fitted to the attaching member, in the sewing frame, the to-be-laid object can be unfolded so that it may become a substantially C-shaped loop which encloses each roller. Thereby, the to-be-sealed object will be conveyed in a X direction with a sewing frame when a X drive motor is driven, and a Y direction by rotation of three rollers when a Y drive motor is driven.

However, in the apparatus of the said patent document 1, the to-be-sealed | supported object is comprised in the both ends of the cloth length (front and back) direction of the to-be-sealed material (cloth etc.) unfolded in the shape of the C-shaped loop, and both ends of the cloth width (left-right) direction Was not supported or was adhesively supported by an adhesive material provided on the outer circumferential surface of the interlock belt. For this reason, when both ends of the cloth width direction are not supported, there existed a problem that spreading of the to-be-processed object was inadequate, or a to-be-processed object was pulled out as sewing progressed and it becomes a cause of fringe sagging. Moreover, even when the both ends of the cloth width direction are adhesively supported by an adhesive substance, the support is not sure, and sagging occurs in the adhesive holding part of the to-be-sealed object by the progress of sewing, or the tension | tensile_strength loaded from the unwrapped goods Thereby, there was a problem that the interlocking belt was bent and rolled, thereby causing sagging.

This invention is made | formed in view of the point mentioned above, and an object of this invention is to reliably support the both ends of the width direction (cloth width) direction of the to-be-sealed object unfolded in a substantially loop shape, and to prevent a drooping pattern by this.

The present invention relates to a sewing material conveying device for a sewing machine which surrounds a plurality of rollers extending in a transverse direction with respect to the sewing frame and spreads the object to be sealed in a substantially looped form, and conveys the object through the transport mechanism along the loop. A pair of supporting members attached to the transport mechanism for supporting each of both ends of the unfolded to-be-sealed material in the transverse direction, and the transport member being supported by the supporting member in a state in which both ends of the unseamed to-be-seamed material are supported respectively. According to the movement of the mechanism is characterized in that the to-be-sealed material is conveyed.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to an accompanying drawing.

1 is an overall plan view of a multi-head embroidery sewing machine according to an embodiment of the present invention, and as shown in FIG. 1, is divided into a plurality of sewing machine frames 1 of the overall frame of the multi-head embroidery sewing machine (in the example of the drawing). Four sewing machine heads 2 and a plurality of (four) kiln foundations and a workpiece conveying device 4 provided in correspondence with the respective sewing heads 2 are provided. In the present specification, in the present specification, for convenience of description, the left and right directions (left and right directions in FIG. 1) of the multi-head embroidery sewing machine are set to the X direction, and the front and rear directions (up and down directions in FIG. 1) of the multi-thread embroidery machine are set in the Y direction. do.

2 and 3 are views for explaining the structure of the object to be conveyed 4, Figure 2 is a cross-sectional view taken along line II of Figure 1, Figure 3 is a perspective view showing the elements extracted of the object to be conveyed 4 to be. The to-be-sealed material conveying apparatus 4 rotates in a pair of base material 5 and the pair of base material 5 which were provided slidably in the transverse direction (X direction) with respect to the sewing machine frame 1 substantially. It is possible to have four rollers 6 axially supported. In the to-be-sealed material conveying apparatus 4, the part of the said pair of base materials 5, ie, the roller 6 part, becomes a sewing part of a to-be-sealed | blocked object, and the to-be-sealed material (typically cloth) mounted thereon is Sewing is performed on the surface facing the sewing head 2. In addition, the detail of the mounting aspect of a to-be-sealed | blocked object is mentioned later.

Both base materials 5 are the left and right side parts of the to-be-sealed material conveying apparatus 4, and are a frame body formed in substantially square shape from the side as shown in FIG. 2, and within the frame, the sewing machine frame 1 The transverse frame 1a included in) can penetrate. Four rollers 6 are arrange | positioned so that the both ends may be located in the four corners of both the left and right base materials 5 in the direction in which the longitudinal direction extends along an X direction. That is, the four rollers 6 are arrange | positioned with respect to the to-be-sealed material conveying apparatus 4 at an upper front side, an upper rear side, a lower front side, and a lower rear side, respectively. Both of these base materials 5 and four rollers 6 form the overall frame structure of the to-be-sealed material conveying apparatus 4.

The base part 7 is fixed to the upper edge part of each base material 5, and each base material 5 is attached to the sewing machine frame 1 via the slide rail 8 in the base part 7, respectively. Is mounted. The slide rail 8 guides the slide movement of the base material 5 in the X direction, and this functions as one component of the mechanism which slides the X material of the to-be-sealed material conveying apparatus 4 in the X direction.

The slide rails 8 provided corresponding to the respective base members 5 include two rails 9 arranged in parallel with respect to the X direction on the upper surface of the transverse frame 1a of the sewing frame 1, Each slider 10 is fixed to the lower surface part of the base part 7 by being comprised of the two sliders 10 which are respectively caught by the two rails 9 and which should slide along them. In addition, as is clear from FIG. 2, since the upper surface of the horizontal frame 1a on which the slide rails 8 are to be arranged is formed to have a wide width in the Y direction, the two rails 9 are provided with sufficient mutual spacing. Can be placed. For this reason, since each base material 5 is stably supported on the sewing machine frame 1, the slide movement of an X direction can also be made stable, without shaking.

3, the base material 5 on the right side is extracted and shown when the said multi-head embroidery sewing machine is seen from the front surface (lower side of FIG. 1). In the foundation portion 7 shown (i.e., provided on the base member 5 disposed on the right side as viewed from the front of the sewing machine), a threaded rod 11 having a thread is installed therethrough, and as shown, The screw rod 11 penetrates the base 5 from the base 7. The moving part 12 which screw-fits to the thread of the threaded rod 11 is fixed to the part through which the threaded rod 11 of this base part 7 penetrates. One end of the screw rod 11 is connected to the X drive motor 13 fixed on the sewing machine frame 1 via a pedestal so that the rotating shaft of the motor and the screw rod 11 are coaxial. It is. The screw rod 11 is rotated about the axis line of the screw rod 11 by the drive of the X drive motor 13. The rotational drive of the X drive motor 13 by the screw action of the screw rod 11 and the mover 12 is based on the base portion 7, and accordingly, in the base member 5, It is converted into a slide movement along the axial direction (X direction). Therefore, the base material 5 slides in the X direction by the drive of the X drive motor 13.

At both left and right ends of the four rollers 6, the shafts 6a arranged coaxially with respect to their respective centers extend respectively. Each roller 6 is rotatably supported by both base materials 5 via these shafts 6a, and each shaft 6a penetrates the base material 5 from the side surface of the base material 5, and so on. It is mounted in a protruding state. In each shaft 6a, pulleys 14 are fixedly fitted to the ends protruding from the base 5. That is, in each base material 5 arrange | positioned at the left side and the right side of the to-be-sealed material conveying apparatus 4, four pulleys 14 are arrange | positioned, and each pulley 14 and each shaft 6a corresponding to it are provided. Can rotate in conjunction. In each of the base members 5 on the left and right sides, a timing belt 15 closed in an annular shape is crossed across the four pulleys 14, and the four rollers 6 are connected to this timing belt ( By contacting each other by 15), the interlocking rotation is possible. In FIG. 3, the timing belt 15 is shown by the dashed-dotted line. In the same figure, the shaft 6a which extends from the right end of the roller 6 arrange | positioned at the upper-back side is coaxially connected with the motor shaft with respect to the Y drive motor 16. As shown in FIG. The Y drive motor 16 is being fixed on the said base material 5 of the said right side, and it drives the said roller 6 of the upper and back side connected to this by rotating the shaft 6a as a rotating shaft. When the pulley 14 mounted on the rollers 6 on the upper and rear sides rotates by the rotation drive of the Y drive motor, the rotation is transmitted to the timing belt 15 so that the other three pulleys 14 interlock and rotate. It becomes. Therefore, four rollers 6 are rotationally driven by the drive of the Y drive motor 16. Moreover, the stem-groove structure which should engage with each other is formed in the circumference | surroundings of each pulley 14, and the inner peripheral surface of the timing belt 15, and each pulley 14 and the timing belt 15 are idling. It does not slip (not slip), and it is reliably linked.

As shown in FIG. 1, the timing belt 15 is provided in the endless track shape at the left and right both ends of the roller 6, respectively. A plurality of left and right pairs of support members (support base portions) 17 are attached to the edge portions of both timing belts 15 over the entire length of the timing belt 15. These supporting members 17 are members for unfolding and supporting both ends in the lateral width direction of the to-be-sealed object, and are arranged at relatively dense intervals over the entire circumference of the timing belt 15 along one end of the to-be-sealed object to be supported. . 4 and 5 enlarge and extract main parts of the material to be conveyed 4 in order to explain the structure of the supporting member 17. In FIG. 4, the supporting member 17 is fixed to the timing belt 15 at its proximal end (the right end in FIG. 4) by suitable fixing means such as screws, rivets, and the like. The support member 17 extends from this base end toward the inside of the to-be-sealed material delivery apparatus 4 beyond the base material 5, and at the other end (front end), a recess 17a for supporting the to-be-sealed material. ) Is formed, and the portion extending from the recessed portion 17a to the front end is formed to rise so as to have a gentle inclined surface, and the pin 18 sticking to the expanded to-be-sealed object is protruded and installed on the upper surface of the raised portion. do.

Moreover, the support part 17b is formed in the vicinity of the base end of the support member 17 so that it may extend downward along the side surface of the base material 5, and the positioning roller 19 rotates in this support part 17b. The operation is installed freely. This positioning roller 19 is arrange | positioned so that the outer periphery of the roller may contact the side surface of the base material 5, The support member 17 (or the timing belt 15) is pulled by the to-be-processed object, and the said to-be-processed object inside direction is carried out. Function to regulate displacement by

The recessed part 17a of the support member (support base part) 17 arrange | positioned around the periphery of the timing belt 15 inserts and fastens the to-be-sealed object put on the recessed part 17a from the top. The fastening member 20 can be fitted along the loop of the to-be-sealed object (that is, to enclose all the support members 17, ie, the support base). The fixing member 20 is a string-shaped member having the same overall length as the timing belt 15, and is formed of, for example, urethane rubber that is an elastic material. The fixing member 20 has a substantially circular portion 20a with a cross section suitable for fitting relatively firmly to the recessed portion 17a of the supporting member 17 along its longitudinal direction. As shown in the figure, the circular portion 20a has a width such that its outer circumferential surface can be in close contact with the inner wall surface of the recessed portion 17a when fitted to the recessed portion 17a. Moreover, at the upper edge of the fixing member 20, a pair of handle part 20b is extended and the pair of handle part 20b is provided in plural pairs corresponding to the arrangement of the support member 17. have.

FIG. 6: shows the state to which to-be-processed object S was supported by the to-be-processed object conveying apparatus 4. FIG. Here, the to-be-sealed material S is the cloth which should be sewn as an example, and in the following description, when this cloth is attached with respect to the to-be-sealed material conveying apparatus 4, the direction along the X direction (lateral direction) is said. The cloth width direction of the cloth and the direction along the Y direction (front and rear direction) are called the cloth length direction of the said cloth.

When mounting the to-be-processed object S with respect to the to-be-processed object conveyance apparatus 4, the to-be-processed object S is arrange | positioned at the upper front side, the upper rear side, the lower front side, and the lower rear side of the to-be-processed object conveyance apparatus 4. The four rollers 6 are unfolded so as to surround each of the four rollers 6 in the form of a loop in the cloth length direction. At this time, both end portions (left and right ends as seen in FIG. 1) in the cloth width direction of the to-be-sealed material S wound in a substantially looped shape of the support member 17 arranged on left and right sides of the to-be-sealed material conveying apparatus 4. It is located above the recess 17a. And from that, the circular part 20a of the fixing member 20 is fitted to the recessed part 17a of each support member 17 sequentially, and the to-be-sealed | blocked material S is supported by the support member 17 And is sandwiched between the fixing member 20 and supported. In this way, both ends of the cloth width direction of the to-be-sealed material S can fully be unfolded and supported.

The conveyance of the cloth length direction (Y direction) relative to the sewing head 2 of the to-be-sealed material S drives rotation of the four rollers 6 and the timing belt 15 by the drive of the Y drive motor 16. FIG. By doing so. Since the support member 17 is fixed to the timing belt 15, the to-be-sealed material S is relative to the sewing head 2 in the state in which the both ends of the width direction were supported by the support member 17, respectively. To the Y direction. Moreover, according to the support member 17 which concerns on this invention, the relatively small several said member 17 is arrange | positioned according to the rotation direction (Y direction) of the timing belt 15, and the to-be-sealed | blocked object S unfolded in the form of a loop. Supporting both ends of the over the entire length of the longitudinal direction is realized. Such a structure of the support member has the advantage that the plurality of support members 17 disposed on the timing belt 15 do not inhibit the rotation of the belt.

In addition, in the state where the to-be-sealed material S is supported by the support member 17, the cloth surface is spread very tightly, and the pin 18 provided in the front-end | tip of the support member 17 sticks the to-be-sealed material S. FIG. Thus, since the to-be-sealed | blocked material S reliably supports the both ends of the cloth width direction by the support member 17 by the close support by the fixing member 20, and the support of the pin 18, it is sewing process. In accordance with the progression of the stretched tension of the to-be-sealed material S increases, even if tension is generated in the inward direction of the to-be-sealed material S, the position shift with respect to the support member 17 is not caused.

 In addition, when the tension in the inward direction of the to-be-sealed material S increases with the progress of sewing, the support member 17 itself is dragged inward to the to-be-sealed object together with the timing belt 15, but the support member ( Since the positioning roller (regulating member) 19 of 17 contacts the side surface of the base 5 and restricts the support member 17 from being struck inward, the timing belt 15 is bent and supported. It is also possible to prevent the member 17 itself from displacing inward. The rotatable positioning roller 19 frees the movement of the support member 17 in the Y direction, but the displacement of the support member 17 in the inward direction of the to-be-sealed object can be restricted.

In addition, the drive about the cloth width direction (X direction) relative to the sewing machine head 2 of the to-be-processed object S supported by the to-be-processed object conveyance apparatus 4 is made according to the drive of the X drive motor 13. That is, in response to the drive of the X drive motor 13, the base material 5 connected thereto is slid in the X direction so that the object to be conveyed 4 is slid in the X direction with respect to the sewing frame 1. . As a result, the X-direction transfer of the to-be-sealed material S is performed.

When removing the to-be-sealed object S, the operator grips a pair of handle part 20b of the fixing member 20, and deforms the circular part 20a so that the width may narrow inwardly, and concave part 17a is carried out. ), And then the fixing member 20 may be detached from the supporting member 17 by sequentially pulling out from the recess 17a of each supporting member 17.

In addition, as a whole, the fixing member 20 which has a string shape is configured to be connectable between both ends, thereby fitting the circular portion 20a of the fixing member 20 to the recessed portion 17a of the supporting member 17 to be sealed. You may connect between the edge parts of the fixing member 20 which abuts each other in the state which supported (S), ie, in the state arrange | positioned in ring shape along the loop of the to-be-sealed material S. FIG. For this reason, the fitting of the circular part 20a and the recessed part 17a becomes more reliable.

In the above-mentioned example, although the structure which supports the edge part of the cloth width direction of the to-be-processed object was demonstrated, you may comprise so that the edge part of the cloth longitudinal direction of a to-be-sealed material can also be supported. As an example, in FIG. 7, the support lever 21 for supporting the cloth longitudinal direction of the to-be-sealed material S is shown. The support lever 21 is a member extending in the form of a length rod formed in a substantially C-shaped cross section, and can be provided at the tip of one support member 17 with respect to the opening portion of the substantially C-shaped cross section. In the to-be-sealed material conveying apparatus 4, this is provided so that it may be located in the both ends of a pair of left and right support members 17 along the X direction. The object to be wound is wound on the object to be conveyed 4. Then, by mounting the inverting clip 22 to be fitted with the support lever 21 thereon, the to-be-sealed object is inserted and supported by the support lever 21 and the inverting clip 22.

In addition, although the example which supports the both ends of the cloth longitudinal direction of the to-be-sealed material S wound by the loop form is shown in FIG. 7, it is not limited to this, but it supports two support levers 21 which support each end one by one. You may install it.

In addition, in the example shown, although the several support member 17 showed the example arrange | positioned closely over the whole surface of the timing belt 15, the support member 17 was appropriately pulled out (that is, mutually spaced apart suitably). May be arranged.

In addition, in the above-described embodiment, an example in which one piece of cloth is wound in a substantially loop form as a to-be-sealed material has been described. However, the support member 17 according to the present invention does not have a length sufficient to form a loop (a to-be-sealed material ) Is also supported. In addition, a plurality of such cloths (seeds) may be attached to the object to be conveyed device 4, and these may be supported by the support member 17 and the support lever 21. Moreover, in the above-mentioned embodiment, although the example in which the four rollers 6 were provided in the to-be-sealed material conveying apparatus 4 was shown, the number of the rollers 6 is not limited to this, The said roller 6 is not limited to this. If at least one of them disposed below is provided, there is no problem in carrying out the present invention. The present invention is not limited to embroidery sewing machines, but can be applied to other suitable sewing machines.

According to this, the object to be conveyed is surrounded by a plurality of rollers extending in the transverse direction with respect to the sewing frame, and the object to be unfolded in a substantially loop form, and the object to be conveyed through the transport mechanism along the loop, and the supporting member Is attached to this transport mechanism to respectively support both ends in the transverse width direction of the unsealed to-be-sealed material. The to-be-sealed object is conveyed with the movement of a transport mechanism in the state in which the both ends of the width direction were respectively supported by this support member. The to-be-encapsulated object is unfolded and supported at both ends by the support member, for example, can prevent the to-be-encapsulated object to be pulled inward with the progress of sewing, and, thereby, the occurrence of fringes is eliminated. Further, by providing a regulating member for regulating the displacement of the respective supporting members in the inward direction of the object to be subjected to each supporting member, the displacement of the supporting member itself can also be regulated, and the sag of the pattern can be avoided thereby. . Therefore, according to this invention, in a sewing process through a roller-type to-be-sealed material conveying apparatus, fringes can be prevented effectively.

Claims (9)

A sewing material conveying device for a sewing machine which surrounds a plurality of rollers extending in a transverse direction with respect to the sewing frame, spreads the sewing material in a substantially loop shape, and conveys the sewing material through a transport mechanism along the loop. A pair of supporting members attached to the transport mechanism for supporting each of the both ends in the transverse width direction of the unpacked to-be-processed object, and in the state in which both ends of the stretched to-be-sealed product are supported by the support members, respectively; The object to be conveyed with the movement of a transport mechanism, The transport mechanism includes a loop-shaped transport member surrounding the plurality of rollers and installed in a loop shape to rotate with the rotation of the roller, And the support member includes a plurality of support bases mounted along the loop-shaped transport member. The method of claim 1, A to-be-sealed material transfer apparatus characterized by providing a regulating member for regulating the displacement of each of the supporting members in the inward direction of a to-be-sealed product corresponding to each of the supporting members. The method according to claim 1 or 2, The said to-be-supported member corresponding to the one end part of the to-be-processed object consists of a some member arrange | positioned along the one end part of the to-be-processed object, The to-be-processed object carrying apparatus characterized by the above-mentioned. The method of claim 2, The regulating member includes roller means for rotating in the conveying direction of the to-be-sealed object, and through this roller means, the movement of the supporting member is freed in the conveying direction, but the displacement of the supporting member in the inward direction of the to-be-sealed object is maintained. A to-be-sewn material transfer apparatus characterized by regulating. The method of claim 1, And the loop-shaped transport member is a timing belt. The method of claim 1, Each said support base part includes the recessed part in which the edge part of the to-be-sealed | blocked material is arrange | positioned, It further has a fixing member fitted to the recessed part, The said to-be-sealed object is supported by inserting the said fixing member in the recessed part on the edge part of the to-be-processed object arrange | positioned at the recessed part of the support base part, It is characterized by the above-mentioned. Material transfer device. The method of claim 6, And the fixing member is made of an elastic material and includes a fitting portion fitted to the recessed portions of the plurality of supporting base portions adjacent to each other. The method according to any one of claims 1 and 5 to 7, The said support base part has the pin for sticking the to-be-sealed material, The to-be-sealed material transfer apparatus characterized by supporting this to-be-sealed material by sticking the to-be-sealed material by this pin. The method of claim 1, And a means for supporting each of both longitudinal ends of the object to be unfolded in the transport mechanism.

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