KR20070004954A - Sewing machine - Google Patents

Abstract

A sewing machine, comprising a holding member (16) formed so that clamp members (8a) and (8b) for supplying a long web (N) from its supply source to a drivingly controlled web frame (5) and fixing the web can be rotated around a rotating shaft (14) extending along the planar direction of the web (N) disposed on the web frame (5) and a receiving part (23) formed to receive the rotated holding member (16). The web (N) is clamped by receiving the rotated holding member (16) by the receiving part (23) in the held state of the web (N) between the holding member (16) and the receiving part (23). Also, a positioning mechanism (27) is disposed at the middle position of a sash part (10) suspending lateral clamp members (8a) and (8b), and the lift member (31) thereof is supported to be raised when the web is supplied so that the web can be supplied and to be lowered when the web is fixed so that the middle position of the sash part cannot be suspended or deformed. ® KIPO & WIPO 2007

Description

Sewing machine {SEWING MACHINE}

The present invention relates to a sewing machine for continuously sewing a long length of a disc by repeating sewing such as embroidery by changing a fixed position of the disc with respect to a disc placed on a sewing table. The present invention relates to a sewing machine that has been improved so as to make the fixing of the original plate stronger.

Conventionally, long discs are supplied from their sources and fixed to disc frames driven forward, backward, left and right on a sewing table of a multiple head sewing machine having a plurality of sewing heads, and sewing to a portion fixed to the disc frames is performed. After finishing, the multi-threaded sewing machine configured to repeat the sewing by changing the fixing position of the original plate relative to the original frame by releasing the fixing and positioning the next sewing part in the original frame. Fig. 15 shows, as an example, a plan view of this kind of multi-head sewing machine, where 1 is a sewing frame, 2 is a table, 3 is a sewing head, and 5 is a disc frame. The disc frame 5 is provided with the horizontal clamp members 101a and 101b and the vertical clamp members 102a and 102b for fixing the original plate N. As shown in FIG.

Since the horizontal clamp members 101a and 101b have the same structure and are arranged facing each other, only one horizontal clamp member 101a will be described. FIG. 16 is a sectional side view (sectional view seen from the arrow III-III in FIG. 15) of the front horizontal clamp member 101a. The horizontal clamp member 101a is provided with the fixing chassis 104 which has the same length as the horizontal side of the disk frame 5, and the vicinity of the both ends of the fixing chassis 104 is via the bracket 103. It is fixed to the disc frame 5 (bridge | bridge). The fixing chassis 104 is provided with a plurality of (6) actuators 105 at appropriate intervals, and the rod end of each actuator 105 has a length of the horizontal clamp member 101a. The length extended over is fixed to the predetermined location of the long press body 106, respectively, and this press body 106 cooperates and suspends. That is, the tip of the rod part of each actuator 105 is fixed to the predetermined location of one long press body 106, and it cooperates with these several (6) actuators 105, and one long press body Move 106 up and down. The receiving part 107 is formed in the horizontal side of the disc frame 5 at the position corresponding to the pressing body 106, and the receiving part 107 when the pressing body 106 descends by simultaneous operation of each actuator 105. FIG. It is possible to sandwich the original plate N with). The pressing member 106 and the receiving portion 107 are each fixed with a cushion member 108 for clamping the disc N.

Next, the vertical clamp members 102a and 102b will be described. Since the same structure is arrange | positioned facing the vertical clamp members 102a and 102b, only one vertical clamp member 102a is demonstrated. 17 is a side cross-sectional view (sectional view seen from the IV-IV line arrow in FIG. 15) of the vertical clamp member 102a on the right side. The vertical clamp member 102a is provided with the vertical chassis 109, and the total length of the vertical chassis 109 is set slightly shorter than the space | interval of both horizontal clamp members 101a and 101b. The first actuator 111 is fixed to both ends of the vertical chassis 109 via brackets 110, respectively. The rocking lever 112 is axially supported by both brackets 110, and the rocking lever 112 is connected by the rod part of the 1st actuator 111 and the pin 114. As shown in FIG. On the upper side of the vertical chassis 109, a pressing chassis 113 of substantially the same length as the vertical chassis 109 is disposed, and both ends of the pressing chassis 113 are fixed to the distal ends of both swing levers 112, respectively. . The pressing chassis 113 is fixed with a cushion member 115 having a length extending over its entire length, and the vertical chassis 109 has a felt 116 having a length extending over its entire length. When the pressing chassis 113 swings downward by the operation of the first actuator 111, the disc N can be held by the cushion member 115 and the felt 116. The second actuator 117 is provided in the vicinity of the both ends of the vertical clamp member 102a, respectively, and the 2nd actuator is attached to the horizontal clamp members 101a and 101b, respectively. The rod portions of both second actuators 117 are connected to both ends of the vertical chassis 109, and when the second actuator 117 is operated, the vertical chassis 109 is moved left and right.

When setting the original plate N, the original plate N is continuously sent out from the supply stand, and after being fixed through each clamp member on the original frame 5, it is led to the collection stand. In this state, the actuators of the horizontal clamp members 101a and 101b and the vertical clamp members 102a and 102b are driven to fix the disk N to the disk frame 5. The fixing of the original plate N initially operates the actuator 105 of the horizontal clamp members 101a and 101b, and clamps the original plate N by the press body 106 and the receiving part 107, and then vertically. After operating the first actuator 111 of the clamp members 102a and 102b to sandwich the disc N by the cushion member 115 and the felt 116, the second actuator is operated to operate the vertical clamp member 102a, Spacing of 102b) makes disk N taut to pin. As a result, the original plate N is fixed to the original frame 5.

When sewing to the part fixed to the disc frame 5 is complete | finished, the actuator of each clamp member is actuated to release the fixation of the disc N, and sewing is performed next to the disc N in the disc frame 5 next. The actuators of the respective clamp members are operated by positioning the parts to be sewn to fix the parts to be sewn next to the disc N to the disc frame 5. In this way, the sewing position is repeated by changing the fixed position of the original plate N with respect to the original frame 5.

In the above prior art, the fixing of the disc N to the disc frame 5 is carried out by lowering the press body 106 and the press chassis 113 so that the disc N is received by the receiving part 107 and the longitudinal chassis 109. It is carried out with a pinch. That is, the disk N is fixed by pressing from the top with the press body 106 and the press chassis 113. However, the tension force acts on the original plate N in the lateral direction (the plane direction of the original plate N) by the original plate N shrinkage due to the movement of the original frame 5 or the progress of sewing. Since the original plate N stretched in the lateral direction is pressed and held from above, the original plate N cannot be fixed firmly. When the original plate N was thin especially, it was remarkable and it was impossible to sew.

In addition, the chassis 104 for fixing the horizontal clamp members 101a and 101b has a long overall length corresponding to the width of the disc N. FIG. However, the fixing chassis 104 is only bridge | crosslinked by fixing the vicinity of the both ends to the disc frame 5 via the bracket 103. As shown in FIG. This is because the disc N is interposed between the fixing chassis 104 and the disc frame 5, so that the middle portion of the fixing chassis 104 cannot be fixed. For this reason, when the press body 106 is lowered and the disk N is clamped, the intermediate part of the fixing chassis 104 deforms (bending upwards) and cannot press the disk N securely. This also becomes a factor in which the original plate N cannot be fixed firmly.

The present invention has been made in view of the above-described points, and is used for sewing machines for sewing sewing on a long disk by repeating sewing such as embroidery by changing the fixing position of the disk with respect to the disk frame placed on the sewing table. It is an object of the present invention to provide a mechanism in which the fixing of the original plate is made stronger with respect to the original frame.

In the sewing machine according to the first aspect of the present invention, a disk having a long length is supplied from the supply source to a disk mold to be driven and controlled on a sewing table, fixed by a clamp mechanism, and sewing to the disk portion fixed to the disk mold is In the sewing machine configured to release the disc by the clamp mechanism and move the disc relative to the disc frame to change the disc part fixed to the disc frame to another part to resume sewing. The clamp mechanism for fixing the disc to the disc frame receives a retaining member configured to rotate around a rotational axis extending along a plane direction of the disc disposed on the disc frame, and the rotated retaining member. A holding part configured, and holding the disc between the holding member and the receiving part. The disc is clamped by rotating the member toward the receiving part and receiving the rotated holding member at the receiving part.

In the sewing machine according to the second aspect of the present invention, a disk having a long length is supplied from its supply source to a disk mold to be driven and controlled on a sewing table, fixed by a clamp mechanism, and sewing to the disk portion fixed to the disk mold is In the sewing machine configured to terminate the disc by the clamp mechanism and move the disc relative to the disc frame to change the disc part fixed to the disc frame to another part to resume sewing. The clamp mechanism includes a long horizontal clamp member that extends in a transverse direction with respect to the conveying direction of the original plate, and a chassis portion that crosses both ends of the disc frame and suspends the horizontal clamp member. By moving this horizontal clamp member toward the disc frame with the disc placed between the frames The clamping plate further includes a positioning mechanism including a vertically movable member suspended at an appropriate intermediate position of the chassis, and the positioning mechanism raises the vertically movable member at the time of disc transfer to perform disc transfer. When the disc is fixed, the up and down movable member is lowered to fix the disc to the disc frame, and the reaction force does not vertically lower or deform the intermediate position of the chassis. It is characterized in that to support.

According to the first aspect of the present invention, since the holding member of the clamp mechanism is set in the clamped state by rotating around the rotational axis extending along the plane direction of the disc disposed in the disc frame, the clamp member The moment of the holding member acts in the approximately transverse direction (approximately the planar direction of the disc), and unlike pressing only from above, as in the prior art, the disc can be fixed more firmly in the transverse direction (planar direction) in which the disc is tensioned Can be. That is, when the original plate is tensioned in the lateral direction (planar direction), the original plate is more securely fixed since it acts to fix it more firmly without moving therewith. Therefore, even when the disc is thin, it can be fixed securely.

According to the second aspect of the present invention, a positioning mechanism is provided at an intermediate position of the chassis portion suspending the transverse clamp member, and the movable member in the positioning mechanism is lifted at the time of disc transfer to allow disc transfer. When the disc is fixed, the plate is lowered to fix the disc with the disc frame, and the reaction force prevents the intermediate position of the chassis portion from being vertically downward or deformed. Positioning can be performed suitably, and the disc can be fixed reliably also in any part of a long chassis part. Moreover, the vibration degree of the chassis part at the time of movement of a disc frame can be prevented, and fixing of a disc becomes more reliable.

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

2 is a side schematic view of a multi-head embroidery sewing machine according to the same embodiment.

Fig. 3 is an enlarged plan view showing the left end portion of the front horizontal clamp member in the same embodiment.

Fig. 4 is a left side view of the horizontal clamp member, in which (a) shows an angle lamp state and (b) shows a clamp state.

5 is a cross-sectional view taken from the arrow I-I of FIG. 3;

6 is a cross-sectional view taken from the arrow II-II of FIG. 3;

Fig. 7 is a side view showing an enlarged clamp operation by the horizontal clamp member.

8 is a three-dimensional view showing an example of a positioning mechanism additionally disposed in the middle portion of the horizontal clamp member.

9 is a partial cross-sectional side view for explaining the operation of this positioning mechanism.

10 is a side cross-sectional view of the longitudinal clamp member.

The side view which shows an example of a supply stand.

The perspective view which expands and shows a partial structure of the drawing | feeding-out member in a supply stand.

It is a perspective view which shows the structural example of the position correction member provided in the rear end of a table.

Fig. 14 is a side sectional view showing a modification of the horizontal clamp member according to the present invention.

Fig. 15 is a plan view showing an example of a conventional multi-head sewing machine.

Fig. 16 is a cross sectional view taken along line III-III of Fig. 15 showing a conventional horizontal clamp member.

Fig. 17 is a cross sectional view taken along the line IV-IV of Fig. 15 showing a conventional vertical clamp member.

Preferred Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail with reference to an accompanying drawing.

In Fig. 1, a plan view of a multi-head embroidery sewing machine according to an embodiment of the present invention is shown, where 1 is a sewing frame and 2 is a table. In the sewing frame 1, a plurality of sewing heads 3 (12 in the illustrated example) are arranged at regular intervals along the left and right (horizontal) directions as viewed from the front surface of the sewing machine. On the table 2, the needle plate 4 is located at a position corresponding to each sewing head 3. The disc frame 5 is mounted on the table 2, and the disc frame 5 is moved forward and backward by the X drive mechanism 6 and the Y drive mechanism 7 provided below the table 2. It is intended to be driven dimensionally. Horizontal clamp members 8a and 8b are provided on both horizontal sides of the disc frame 5, and vertical clamp members 9a and 9b are provided on both vertical sides of the disc frame 5. The disk N is fixed to the disk frame 5 by the horizontal clamp members 8a and 8b and the vertical clamp members 9a and 9b. The disk N is supplied from the supply stand S1 arrange | positioned at the back of a multi-head embroidery sewing machine as shown to the example in FIG. 2, and the disk frame 5 through each clamp member 8a, 8b, 9a, 9b. When the sewing to the disc portion fixed to the disc frame 5 is finished, the disc frame 5 is released and collected at the recovery stand S2 disposed in front of the multi-thread embroidery machine. have. 2 is a side schematic view of a multi-head embroidery sewing machine according to the same embodiment, and the case of performing kilting is shown. In that case, the supply stand S1 supplies the disc frame 5 with a state where the surface N3 is sandwiched between the two cloths N1 and N2 as the disc N.

Since the horizontal clamp members 8a and 8b have the same structure, and are arrange | positioned oppositely, the horizontal clamp member 8a of one side (front) is demonstrated below.

3 is an enlarged plan view showing the left end of the front horizontal clamp member 8a, FIG. 4 is a left side view of the horizontal clamp member 8a, FIG. 5 is a sectional view seen from the arrow II in FIG. It is sectional drawing seen from the II-II arrow of FIG. As is apparent from this figure, the horizontal clamp member 8a has a fixing chassis 10 fixed to the disc frame 5 via the bracket 11. The plurality of bearings 12 are fixed to the fixing chassis 10 so as to be able to adjust their positions before and after (left and right in FIGS. 5 and 6) at appropriate intervals. A pipe member 13 is disposed between each bearing 12, and each pipe member 13 is connected to a rotation shaft 14 supported by each bearing 12 so as to be rotatable. The holding member 16 and the pressing member 17 are provided in the pipe member 13 via the mounting member 15 provided in the outer periphery of the both ends and the center part. As shown in FIG. 5, the mounting member 15 provided in the both ends of the pipe member 13 is fixed to the rotational shaft 14 with the screw 18, and the mounting hole of this mounting member 15 is a long hole. Formed. Therefore, when the screw 18 which fixes the mounting member 15 of both ends is loosened, the position of the mounting member 15 with respect to the pipe member 13 can be adjusted around the axial center of the pipe member 13. The holding member 16 is comprised including the moderately hard center part 16a extended in the horizontal direction, and the contact part 16b which covers the outer side, and the contact part 16b is deformable, On the other hand, it is formed with elastic rubber, for example, which is hard to generate | occur | produce slip when it contacts the original plate N.

In FIG. 3, the leftmost pivot shaft 14 is provided to protrude from the fixing chassis 10, and the operating member 19 is fixed to the protruding left portion. The connecting pin 20 is fixed to the tip of the operating member 19, and the connecting pin 20 is fitted into the connecting hole 22a of the connecting member 22 fixed to the rod of the air cylinder 21. The air cylinder 21 is fixed to the mounting part 11a formed in the bracket 11. Thereby, the rotational shaft 14 and each pipe member 13 are rotated by the operation of the air cylinder 21, and the holding member 16 and the pressing member 17 provided in the pipe member 13 are rotated. Is rotated. In addition, the right end of the horizontal clamp member 8a has the same configuration, and the horizontally long retaining member 16 and the pressing member 17 are rotated together by the operation of the two left and right air cylinders 21. By rotation of the holding member 16 and the pressing member 17, fixing (clamping) and release (anchram) of the original plate N with respect to the original frame 5 are performed. The disc frame 5 is provided with a receiving portion 23 for fixing with the disc N interposed between the holding member 16, and the receiving portions 23 are provided with rubber members 24, 25. It is installed to form a corner that is approximately perpendicular.

The state (anchlamp state) which released | released the disc N was shown in FIG.4 (a), and the state (clamp state) which fixed the original plate N is shown in FIG.4 (b). When the original plate N is in the angle lamp state of FIG. 4 (a), the original plate N is positioned on the original frame 5 via the original frame 5 and the fixing chassis 10. Then, the air cylinder 21 is operated to rotate the holding member 16 and the pressing member 17 by the rotation of the rotation shaft 14 and the pipe member 13 to the position shown in Fig. 4B. Thereby, the original plate N is clamped between the holding member 16 and the receiving part 23 (rubber members 24 and 25), and the original plate N is fixed with respect to the original frame 5. .

Fig. 7 shows an enlarged view at this time. The same figure (a) shows that the contact portion 16b is the tip of the receiving portion 23 while the holding member 16 is rotated counterclockwise in the figure. The state which contacted (the tip of the rubber member 25) is shown. At this time, the disc N is pinched by the front-end | tip part of the holding | maintenance member 16 and the receiving part 23 (tip of the rubber member 25). In addition, Teflon tape 26 ("Teflon" is a trademark) is attached to the upper surface side of the tip end portion (rubber member 25) of the receiving part 23, and tension is applied to the disc N when the holding member 16 is rotated. It is easy to bet. That is, in the process of rotating the holding member 16 further counterclockwise and rotating to the fixed position (clamp position) shown in FIG.7 (c), in the holding member 16 and the receiving part 23, The upper plate N is in contact with the holding member 16 which is hard to slip, and the lower plate N is in contact with the slippery Teflon tape 26 ("Teflon" is a trademark). The holding member 16 is tensioned and fixed together in the rotational direction (the right side of FIG. 7, that is, the front side of the sewing machine). On the other hand, in the rear horizontal clamp member 8b, since the holding member 16 etc. of the same structure are provided opposite those of the front horizontal clamp member 8a, it is on the opposite side (namely, rear side) from the front side. It is tensioned and the original plate N is stretched back and forth in the original frame 5, and is fixed. Fig. 7 (b) shows the point in time when the holding member 16 comes from just below Fig. 7 (a) to Fig. 7 (c), the lower end of which is just below the axis center of the pivot shaft 14. . At this point in time, the lower end of the holding member 16 is at the lowest position and the rubber member 25 is pressed to crush. When the retaining member 16 moves further to the right in the figure to the fixed position (clamp position) in FIG. 7C, the distortion of the rubber member 25 is partially returned while the rubber member 24 is held by the retaining member ( 16 to be crushed, and in this way, the holding member 16 is reliably held between the rubber member 25 and the rubber member 24 of the receiving portion 23 formed at right angled corners. As a result, the tension of the disc N increases as the embroidery progresses, and when the tension force acts on the left side in FIG. 7, the holding member 16 also tries to rotate to the left side. The rotation is prevented because it will be crushed again. In addition, in this holding position (clamp position), the holding member 16 does not move to the left side, even if a tension force acts on the left side in FIG. It works to fix firmly. In this manner, the disc N is fixed to the disc frame 5 more firmly by being stretched. Moreover, when the pressing member 17 provided with respect to the holding member 16 is rotated to a fixed position (clamp position), it presses down the disk N below and narrows the space | interval with the table 2 by this, The flatness of the original plate N accompanying sewing is reduced, and thread breaks are prevented.

In addition, the fixing (clamping) state of the original plate N by the holding member 16 becomes weak about the center of the fixing chassis 10. This is because the rotation of the holding member 16 is performed by the air cylinders 21 provided at both ends of the fixing chassis 10. Moreover, the fixed state of the holding member 16 may differ also by the dimension error etc. of each component. In such a case, the fixed state of the holding member 16 can be made uniform by adjusting the position of the bearing 12 and the position of the mounting member 15 with respect to the pipe member 13.

As shown in FIG. 1, the positioning mechanism 27 is provided in the substantially center part of the horizontal clamp members 8a and 8b, respectively. 8 is a three-dimensional view showing the positioning mechanism 27, and FIG. 9 is a partial cross-sectional side view. As is clear from FIGS. 8 and 9, in the positioning mechanism 27, the base member 28 is fixed to the fixing chassis 10, and the base member 28 is provided with air through the bracket 29. The cylinder 30 is fixed, and the lifting member 31 is provided at the tip of the rod of the air cylinder 30. Two guide shafts 32 are provided on the elevating member 31, and the guide shafts 32 are inserted into the guide holes formed in the base member 28. As a result, the lifting member 31 is guided to the guide shaft 32 by the operation of the air cylinder 30 to move up and down. The guide plate 33 is fixed to the upper surface of the disk frame 5 corresponding to the elevating member 31, and the guide groove 31a engaging with the guide plate 33 is formed on the lower surface of the elevating member 31. As shown in FIG. In the fixed chassis 10 of the horizontal clamp members 8a and 8b, only the both ends thereof are fixed to the disc frame 5 by the bracket 11 (FIG. 3), and are bridged to the disc frame 5. The fixing chassis 10 has a long length, and the middle part thereof is also intended to be fixed to the disc frame 5 through a suitable bracket 11 or the like, but the disc N between the fixing chassis 10 and the disc frame 5 is fixed. ), It is not possible to install a fixing support means such as the bracket 11 in the middle portion. For this reason, the center part of the fixing chassis 10 will fall down vertically in any way by its own weight. When the holding member 16 is rotated in this state, the holding member 16 is stopped by interfering with the front surface of the receiving part 23 of the disc frame 5. The positioning mechanism 27 prevents such a problem. When the disc N is transferred, the air cylinder 30 is operated to raise the elevating member 31 to the position indicated by the solid line in FIG. Do not impede the transport of N). In the case of fixing (clamping) the original plate N, the air cylinder 30 is operated before the holding member 16 is rotated to show the lifting member 31 on the imaginary line in FIG. 9. It lowers to a position and raises the center part hanged down of the fixing chassis 10, and positions it so that it may become substantially the same height as the both ends. This makes it possible to reliably rotate the holding member 16. Moreover, since the position of the lifting member 31 is also controlled by the holding member 16, since the guide groove 31a engages with the guide plate 33, the position of the front and rear (left and right in FIG. 9) of the fixing chassis 10 is also restricted. The disc N is fixed securely. These also prevent vibration of the fixing chassis 10 during the movement of the disc frame 5. In addition, when the elevating member 31 is lowered, the original plate N is sandwiched between the guide groove 31a and the guide plate 33. At this time, a buffer material such as felt may be attached to the guide groove 31a and the guide plate 33 so that the original plate N is not damaged. In addition, this position regulation structure is not limited to the combination of the guide groove | channel 31a (concave part) and the guide plate 33 (convex part), In other words, what is necessary is just to be able to perform position regulation by combination of unevenness | corrugation. .

Next, the vertical clamp members 9a and 9b will be described. The vertical clamp members 9a on the right side will be described because the same configurations are arranged to face the vertical clamp members 9a and 9b.

10 is a side cross-sectional view of the vertical clamp member 9a. The vertical clamp member 9a is provided with the vertical chassis 34, and the total length of the vertical chassis 34 is set slightly shorter than the space | interval of both horizontal clamp members 8a and 8b. First air cylinders 36 are fixed to both ends of the vertical chassis 34 via brackets 35, respectively. The rocking lever 37 is axially supported by both brackets 35, and the rocking lever 37 is connected by the rod part of the 1st air cylinder 36 with the pin 37a. Above the vertical chassis 34, a pressing chassis 38 having a length substantially the same as that of the vertical chassis 34 is disposed, and both ends of the pressing chassis 38 are fixed to the distal ends of both swing levers 37, respectively. . The pressing chassis 38 is provided with a holding member 39 of the same length as its entire length. The holding member 39 is formed of, for example, elastic rubber, which is deformable and hardly slips when contacted with the disc N. The pressing member 40 is attached to the front end of the pressing chassis 38. The rubber member 41 is attached to the upper surface of the vertical chassis 34 at the position corresponding to the holding member 39. Both ends of the support member 42 are fixed to both swing levers 37, and an auxiliary member 43 for pressing the rise of the center of the pressing chassis 38 is fixed to the support member 42. Thereby, when the 1st air cylinder 36 is operated, the rocking lever 37 is rocked | rotated (rotated), and when the pressing chassis 38 is set to the position shown in FIG. 10, the holding member 39 and a vertical chassis will be made. The disk N is clamped and fixed with the rubber member 41 of 34. At this time, since the center of the pressing chassis 38 is not lifted by the auxiliary member 43, the original plate N is more securely fixed. On the other hand, when the first air cylinder 36 is operated to swing (rotate) the swing lever 37 upward, the pressing chassis 38 is moved upward to release the disc N from being fixed.

Second air cylinders 44 are arranged near both ends of the vertical clamp member 9a. The 2nd air cylinder 44 is attached to the horizontal clamp members 8a and 8b, respectively, and the rod part of both 2nd air cylinders 44 is connected in the vicinity of the both ends of the longitudinal chassis 34. As shown in FIG. Thereby, when the 2nd air cylinder 44 is operated, the vertical chassis 34 will move to left and right. After the first air cylinder 36 is operated to fix the disc N, the second air cylinder 44 is operated to extend the distance between the opposed vertical clamp members 9a and 9b so that the vertical chassis ( 34) is moved. As a result, the original plate N is stretched in the width direction of the sewing machine.

An example of supply stand S1 is shown in side view in FIG. The supply stand S1 is equipped with a pair of stand frames 45 arrange | positioned at suitable intervals in the horizontal width direction of a sewing machine. The support frame 46a, 46b, 46c for supporting the roll of the disc N is provided in the stand frame 45 in the front part (left side of FIG. 11), and the back part (right side of FIG. 11). . When performing kilting, as shown in FIG. 2, the rolls N1 and N2 of cloth are set to the two support parts 46a and 46b of the front part, and the roll N3 of the surface is provided to the support part 46c of the back part. Set). On the other hand, when embroidering etc. to one piece of cloth, only the roll of cloth N is set to the support part 46a of the upper part upper part as shown in FIG. The supply stand S1 is provided with a feeding mechanism for continuously discharging the cloth when the cloth is a thin cloth when embroidery is performed on one piece of cloth. The feeding mechanism has a swing lever 47 that is axially supported by the stand frame 45 so as to be swingable. The tip of the rod portion of the air cylinder 48 is connected to the swing lever 47 by a pin, and the air cylinder 48 is pivotally joined to the stand frame 45 so as to be rotatable. A long hole engaging portion 47a is formed at the tip end of the swing lever 47, and the shaft portion 49a of the feeding member 49 provided to be movable up and down is engaged. The shaft portion 49a of the feeding member 49 also engages the guide hole 50a of the plate 50 fixed to the stand frame 45. As is apparent from FIG. 12, the rack gear 51 is fixed to the plate 50 along the guide hole 50a, and the rack gear 51 is attached to the shaft portion 49a of the feeding member 49. The pinion gear 52 to be engaged is fixed. As a result, when the rocking lever 47 is rocked by the operation of the air cylinder 48, the feeding member 49 is moved up and down along the guide hole 50a of the plate 50. At this time, the feeding member 49 is moved up and down while being rotated by the rack gear 51 and the pinion gear 52.

When the original plate N is a thin sheet of raw paper, as shown in FIG. 11, the original plate N was rolled up to the support part 46 on the upper part of the front part, and the original plate continued to be exported from the roll ( N) is wound around the feeding member 49 after passing through the guide shaft 53 and guided to the disc frame 5 through the position correction member 54 described later provided at the rear end of the table 2. The feeding member 49 is operated between the lower end position at which the swing lever 47 is at the swing position indicated by the solid line in FIG. 11 by the operation of the air cylinder 48, and the upper end position at the swing position indicated by the imaginary line. Move up and down. When the disc N is fixed to the disc frame 5, the air cylinder 48 is operated to swing the swing lever 47 from the swing position indicated by the imaginary line in Fig. 11 to the swing position indicated by the solid line. As a result, the feeding member 49 is lowered from the upper end position to the lower end position, and the original plate N of the feed amount is continuously sent out from the roll. At this time, the feeding member 49 is lowered while being rotated by the rack gear 51 and the pinion gear 52 while being opposed to the flow of the original plate N. This is to prevent the original plate N from continuing to go out more than necessary. And when the embroidery to the part fixed to the disk frame 5 is complete | finished, and the next part to embroider is located in the disk frame 5, the swing lever 47 by the operation of the air cylinder 48 will be carried out. Is rocked from the solid line position in FIG. 11 to the imaginary line position, and the feeding member 49 is raised to the upper position. Thereafter, the original plate N is smoothly sent out by sending the original plate N out.

Next, the position correction member 54 provided in the rear end of the table 2 is demonstrated. As shown in FIG. 13, the position correction member 54 has two support sticks 55. As shown in FIG. Both ends of both support bars 55 are fixed to the bracket 56 fixed to the rear end of the table 2. The air cylinder 57 is arrange | positioned under the substantially middle part of both support bars 55, and the air cylinder 57 is being fixed to the cylinder bracket 58 fixed to the rear end of the table 2. As shown in FIG. The support member 59 which supports the both support rods 55 is being fixed to the air cylinder 57, and the support member 59 is moved up and down by the operation of the air cylinder 57. As shown in FIG. As shown in FIG. 11, the disk N continued to be sent from the supply stand S1 to the disk frame 5 is mounted on both support bars 55 of this position correction member 54. As shown in FIG. The support member 59 is always in the lowered position shown in FIG. 13, and when the support member 59 is in the lowered position, the intermediate portions of both of the supporting rods 55 have the same height as the end portions thereof. When conveying the original plate N, the air cylinder 57 is operated, and the intermediate | middle part of the support member 59 is lifted and it curves higher than both ends. As a result, the original plate N passing through both of the supporting rods 55 is pulled toward both end portions of both of the supporting rods 55 whose lower portions are lowered. The feeding mechanism of the position correction member 54 and the supply stand S1 prevents the original plate N from moving zigzag when the original plate is transferred.

Next, the sewing operation to the original plate N in the present embodiment will be described.

First, when setting the original plate N, the original plate N is continuously sent out from the supply stand S1, and the fixing plate 8 can be fixed by the clamp members 8a, 8b, 9a, and 9b on the original frame 5. Subsequently, it guides to collection stand S2. In this state, the disc N is fixed to the disc frame 5 by the horizontal clamp members 8a and 8b and the vertical clamp members 9a and 9b. The fixation of the disc N is first performed by the first air cylinder 36 of the longitudinal clamp members 9a and 9b, which is operated by the retaining member 39 and the rubber member 41 of the longitudinal chassis 34. The width direction end part of N) is clamped and fixed. At this time, the air cylinder 30 of the positioning mechanism 27 is also operated at the same time, and the center part which hangs down of the fixing chassis 10 can be raised. Next, the air cylinder 21 of the horizontal clamp members 8a and 8b is operated, and the disc N is clamped and fixed by the holding member 16 and the rubber members 24 and 25. Next, as shown in FIG. Finally, the second air cylinder 44 of the vertical clamp members 9a and 9b is operated to move the vertical chassis 34 so that the original plate N is pulled tight with the pin. When the disc N is fixed, when the machine starts by pressing the start switch of the machine, the disc frame 5 is driven back and forth and left and right according to the sewing data such as embroidery data, and the sewing operation by the sewing head 3 is performed. It is done and sewing to the original plate N fixed to the original frame 5 is performed.

When sewing is finished, the sewing machine is stopped, each air cylinder is operated, and the fixing of the disc N to the disc frame 5 is released (anch ramp). When the fixing of the original plate N is released, the original plate N is transferred and the part which sewing is performed next to the original plate N in the original frame 5 is located. When the portion to be sewn next to the disc N is placed in the disc frame 5, each air cylinder is operated in the same manner as described above to fix the disc portion to be sewn next to the disc frame 5, Restart the sewing machine to sew. In this way, the fixing position of the disk N with respect to the disk frame 5 is changed, and sewing is repeated.

In this manner, the disk N is fixed by the horizontal clamp members 8a and 8b to be firmly fixed by rotating the holding member 16. Moreover, since the holding member 16 acts to fix the original plate N more firmly by the tension of the original plate N, the fixing of the original plate N is assured, and the original plate N is made of thin cloth. In the case of can be firmly fixed. Moreover, by providing the positioning mechanism 27 in the intermediate part of the horizontal clamp members 8a and 8b, the original plate N is firmly held in any position (especially the intermediate part) of the horizontal clamp members 8a and 8b. Not only can it be fixed securely, but also the vibration of the fixing chassis 10 at the time of movement of the disc frame 5 is prevented, and the fixation of the disc N becomes more firm.

In addition, the example of change of the horizontal clamp members 8a and 8b is demonstrated with reference to FIG. In the example of FIG. 14, the horizontal clamp member 8a (or 8b) is provided with the retaining member 16 and the pressing member 17 which are rotated similarly to the above-mentioned embodiment, and at the same time another retaining member The member 60 is provided. The other holding member 60 is rotated in the opposite direction with the rotation of the holding member 16 by the pair of gears 61a and 61b. The retaining wall 62 is provided in the receiving part 23 of the disc frame 5. The receiving part 23 is provided with the rubber members 24 and 25 like the first embodiment, and at the same time, the retaining wall is provided. On the right side of 62, a rubber member 63 corresponding to the holding member 60 is provided. And when fixing the original plate N, the holding member 16 is rotated to the position shown by the imaginary line of FIG. 14, and the original plate N is clamped by the holding member 16 and the rubber members 24 and 25. As shown in FIG. . When the holding member 16 is rotated, another holding member 60 is also rotated at the position indicated by the imaginary line, and the holding member 60 and the rubber member 63 are formed on the right side surface of the holding wall 62. The original plate N is sandwiched. As described above, in the second embodiment, since the discs N are held by the retaining members 16 and 60 on the left and right sides of the retaining wall 62, the discs N can be fixed more firmly.

In each of the above embodiments, the drive of each member is performed by an air cylinder, but other actuators such as an electric actuator may be used.

In the said embodiment, although the clamp structure by the horizontal clamp members 8a and 8b was made into the structure by the rotation of the holding member 16, it is not limited to this, The same holding | maintenance is also carried out also about the vertical clamp members 9a and 9b. The disk N may be fixed (clamped) by the structure by the rotation of the member.

Moreover, in the said Example, although the positioning mechanism 27 was provided in one place of the substantially center part of each horizontal clamp member 8a, 8b, it is not limited to this, The number of positioning mechanisms in a suitable intermediate position is suitable. You may disperse | distribute (27).

In addition, when positioning the part which sewing next of the original plate N in the original frame 5, you may carry out by moving the original frame 5, and collect | recover the part where the sewing of the original plate N was performed. You may carry out by collect | recovering to the stand S2. When moving the disc frame 5 to place the sewing part next to the disc N in the disc frame 5, the disc is located near the bed of the sewing head 3. You may be provided with the pressing member which presses (N). The pressing member is installed to move up and down by an actuator installed on the sewing head 3, and the pressing member is lowered by the actuator when the next sewing part of the disc N is positioned in the disc mold 5. What is necessary is just to make it press the disc N so that it may not move by the movement of the disc frame 5.

As described above, the present invention relates to a sewing machine for continuously sewing a long disk, by repeating sewing such as embroidery by changing the fixing position of the disk with respect to the disk frame placed on the sewing table. It is available for the sewing machine which improved the fixation of the disc to a disc frame more firmly.

Claims (9)

The long disk is supplied from the supply source to the disk mold to be driven and controlled on the sewing table, and fixed by the clamp mechanism. When sewing to the disk portion fixed to the disk mold is finished, A sewing machine configured to resume sewing by displacing the disc and moving the disc relative to the disc frame to change the disc portion fixed to the disc frame to another part. The clamp mechanism for fixing the disc relative to the disc frame is configured to receive a retaining member configured to rotate around a rotational axis extending along a plane direction of the disc disposed on the disc frame, and the rotated retaining member. And a receiving portion, and the holding member is clamped by rotating the holding member toward the receiving portion with the disc placed between the holding member and the receiving portion to receive the rotated holding member as the receiving portion. sewing machine. The method of claim 1, The clamping mechanism which combined the said holding member and the said receiving part is provided in at least two opposite sides of the said disk frame, respectively. The method of claim 2, The said holding member in the said clamp mechanism provided in the opposing each side of the said disc frame is arrange | positioned so that each may rotate in the direction which goes to the outer side of this disc frame, and, by this, the said disc located inside this disc frame A sewing machine characterized in that the part is fixed to the disc frame in a state of being stretched. The method of claim 2, The two opposite sides of the said disk frame in which the said clamp mechanism is provided at least are the sides extended in the direction crossing the longitudinal direction of a disk. The method of claim 2, The opposite side of the said disk frame in which the said clamp mechanism is provided at least is a sewing machine which is a side along the longitudinal direction of a disk. The method of claim 1, And the receiving portion includes a corner portion for receiving the pivoted holding member and an elastic body disposed in the corner portion, and elastically receives the holding member through the elastic body. The method of claim 1, The pressing member is attached to the holding member, and the pressing member rotates together with the holding member, and the tip of the pressing member is in a state where the holding member clamps the disc with the receiving part. A sewing machine, characterized in that the disc is positioned lower than the height of one clamped portion, whereby the disc portion fixed to the disc frame is pushed further downward by the tip of the pressing member, thereby increasing the stability during sewing. A disk with a long length is supplied from the supply source to the disk frame to be driven and controlled on the sewing table, and fixed by the clamp mechanism. When sewing to the disk portion fixed to the disk frame is finished, the disk is fixed by the clamp mechanism. Is a sewing machine configured to resume sewing by changing the portion of the original plate fixed to the original frame to another by releasing and moving the original plate relative to the original frame, The clamp mechanism includes a long horizontal clamp member extending in a transverse direction with respect to the transfer direction of the original plate, and a chassis portion which is bridged at both ends of the original frame to suspend the horizontal clamp member. And clamping the disc by moving the lateral clamp member toward the disc frame while the disc is placed between the disc clamp and the disc frame. And a positioning mechanism including a vertically movable member suspended at an appropriate intermediate position of the chassis, wherein the positioning mechanism raises the vertically movable member during disc transfer to enable disc transfer and to fix the disc. A sewing machine, characterized in that the upper and lower movable members are lowered to fix the disc with the disc frame while the intermediate position of the chassis is vertically lowered or deformed by the reaction force. The method of claim 8, The positioning mechanism is composed of the vertically movable member and a power source for vertically moving the vertically movable member, and the contacting portion of the bottom frame of the vertically movable member is a combination of a recess and a convex portion. A sewing machine comprising one of the position regulating structures, wherein the abutting portion on the disc frame side corresponding to the lower end of the vertically movable member forms the other of the concave portion or the convex portion of the position regulating structure.

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