JP6913846B2 - Sewing machine for sewing long strips - Google Patents

Description

The present invention relates to a sewing machine for sewing a long strip, for example, which is used when a long strip such as lace or flat rubber is superposed and sewn on a leg of a cutting fabric such as shorts or a swimsuit.

Usually, for shorts, swimwear and the like, as shown in FIG. 7, a cutting cloth W having a special shape in which the side edge portions We and We, which are both legs, are curved is used. Then, as shown in FIG. 8, long strips T, T such as lace or flat rubber are sewn on the curved side edge portions We, We, which are both legs of the cutting fabric W, and then the entire cutting fabric W is sewn. A sewn product such as a predetermined shorts or a swimsuit is produced by folding the cloth in half and sewing it sideways to form the circumference of the body.

When producing a sewn product as described above, generally, as shown in FIG. 9, a plurality of cutting fabrics, that is, a preceding fabric W1 and a succeeding fabric W2 are set one after another on the needle plate 1 of the sewing machine. , While sequentially feeding these plurality of cutting fabrics W1 and W2 to the sewing portion 2 including the needle drop portion formed on the needle plate 1, the preceding fabric W1 is located at a position on the upper side of the sewing progress direction Y with respect to the sewing portion 2. And, the long strip-shaped object T is continuously sent out and supplied onto the side edge portions We and We of the succeeding fabric W2, and the long strip-shaped object T is continuously sewn. The strip-shaped portion Ta connected between W1 and the succeeding cloth W2 was manually cut using a hand scissors or the like.

However, in this case, manual work using hand scissors or the like is required to cut the sewn strip, and the sewing work must be temporarily interrupted each time, resulting in poor sewing work efficiency and reduced productivity. In addition, there is a problem that the production cost is likely to increase, and the fabric is easily damaged by the use of hand scissors or the like.

Therefore, in order to eliminate the need for manual work using hand scissors or the like as described above, as shown in FIG. 10, a long strip-shaped object T sewn from the sewing portion 2 to the lower position in the sewing progress direction Y is sewn. Conventionally, a sewing machine has been proposed in which a strip-shaped object cutting device 3 for cutting along a direction substantially orthogonal to the direction Y, that is, a width direction of a long strip-shaped object T is arranged (see, for example, Patent Document 1).
The strip-shaped object cutting device 3 will be described in detail in the embodiment of the present invention described later, but its main configuration is a sliding contact swing from above to downward with respect to the fixed lower female 3A and the lower female 3A. It consists of a freely movable upper female 3B.

Jitsufuku No. 2-10995

Using a conventional sewing machine for sewing long strips having the above-described strip cutting device 3, a plurality of cutting fabrics W1 and W2 are sequentially set on the needle plate 1 and placed on the sewing portion 2. On the other hand, while sequentially feeding in the sewing progress direction Y, the long strips T are continuously fed and supplied onto the curved side edges We and We of the preceding fabrics W1 and the succeeding fabrics W2, and the long strips T are continuously fed. When sewing, since the cut fabric has a special shape as shown in FIG. 7, the strip-shaped object cutting end portion of the preceding fabric W1 and the strip-shaped object sewing start end portion of the succeeding fabric W2 are cut between the two. When brought close to each other so as to secure the minimum interval required for the cutting action by the device 3, a part of the sewing start end portion of the succeeding fabric W2 protrudes to the lower side of the sewing progress direction Y from the strip-shaped object sewing start end portion. Therefore, a defective situation occurs in which the protruding fabric portion is unnecessarily cut during the cutting action of the long strip-shaped object T by the strip-shaped object cutting device 3.

In order to avoid the occurrence of such a defective situation in which a part of the subsequent fabric W2 is unnecessarily cut, the strip-shaped object sewing end portion W1e of the preceding fabric W1 and the strip-shaped object sewing start end portion W2b of the succeeding fabric W2 As shown in FIG. 10, the long strip-shaped object T is sewn at a predetermined interval d so that a part of the sewing start end portion of the succeeding fabric W2 does not protrude, and the fabric is fed to the above. When the strip-shaped portion corresponding to the predetermined interval d reaches the cutting position by the strip-shaped object cutting device 3, by operating the strip-shaped object cutting device 3, a part of the subsequent fabric W2 is not cut unnecessarily. A method of cutting the long strip T has been adopted. Therefore, when the long strip-shaped object T is continuously sewn on the side edge portions We and We of the plurality of cutting fabrics W1 and W2 for the cutting fabric W having a special shape as shown in FIG. 7, FIG. There is a problem that the strip-shaped portion Tb indicated by D is wasted (loss), and there is also a problem that the waste strip-shaped portion Tb must be cut by a sewing machine or manually at the time of side stitching.

The present invention has been made in view of the above circumstances, and when a long strip is continuously sewn on the side edges of a plurality of fabrics, the occurrence of a defective situation in which a part of the subsequent fabric is unnecessarily cut is avoided. At the same time, it is an object of the present invention to provide a sewing machine for sewing long strips, which can automatically and accurately cut strips without waste.

In order to achieve the above object, the sewing machine for sewing long strips according to the present invention includes a needle plate and a fabric sliding plate that set the fabric and guide the feed of the fabric in a predetermined sewing progress direction. A sewn portion including a needle drop portion formed on the needle plate and a strip-shaped object that sends out and supplies a long strip-shaped object so as to overlap the side edge portion of the fabric at a position on the upper side of the sewn portion in the sewing progress direction. The feed and supply device and a long strip that is arranged at a position on the lower side in the sewing progress direction from the sewn portion and sewn on the side edge portion of the fabric when passing through the sewn portion are orthogonal to the sewn progress direction. A sewing machine for sewing a long strip, which is provided with a strip cutting device for cutting along the width direction of the strip, and is a sewing machine for sewing a long strip of the preceding fabric, and a long strip of the preceding fabric and a long strip of the succeeding fabric. A part of the sewing start end portion of the succeeding fabric is sewn more than the strip-shaped object sewing start end portion by bringing it close to the sewing start end portion so as to secure the minimum space required for cutting the strip-shaped object cutting device. In the case where a long strip-shaped object that is continuously fed and supplied onto the side edges of the plurality of fabrics while being sequentially fed while protruding to the lower side in the direction is continuously sewn at the sewn portion. When the sewing end end of the preceding fabric reaches a predetermined strip-shaped object cutting position, it is possible to advance and move from the upper position on the lower side in the sewing progress direction to the lower position on the upper side in the sewing progress direction. of sewing have starting end of the subsequent dough, than contact with said strip cutting position the dough portion protruding said dough portion that protrudes downstream side of sewing the advancing direction than the sewing portion of the long strip Consists of a fabric presser rod that pushes back to the upper side in the sewing progress direction, and a cylinder that moves the fabric presser rod forward and backward drive between the lower position on the lower side in the sewing progress direction and the lower position on the upper side in the sewing progress direction. The fabric pressing device is provided, and a non-slip rubber that comes into contact with the protruding fabric portion of the succeeding fabric is attached to the tip of the fabric pressing rod of the fabric pressing device.

According to the sewing machine for sewing a long strip-shaped object according to the present invention having the above-mentioned characteristics, a long strip-shaped object that is continuously fed and supplied onto the side edges of the plurality of fabrics while sequentially feeding the plurality of fabrics. Is continuously sewn at the sewn portion, the minimum distance required for the cutting action of the strip-shaped object cutting device between the strip-shaped object sewing end portion of the preceding fabric and the strip-shaped object sewing start end portion of the succeeding fabric. It is possible to automatically cut the strip-shaped object at a position where no waste is generated by bringing the strips close to each other so as to secure the above. Nevertheless, the succeeding fabric is brought close to the end of the strip-shaped sewing of the preceding fabric and the starting end of the strip-shaped sewing of the succeeding fabric so as to secure the minimum distance necessary for the cutting action of the strip-cutting device. The sewing is continuously performed with a part of the sewing start end end protruding from the strip-shaped object sewing start end portion to the lower side in the sewing progress direction. In this case, the sewing end end portion of the preceding fabric is given when it reaches the strip cutting position, depending on the fabric presser rod fabric press stop device moves forward movement toward the upstream side position below the sewing traveling direction from the downstream side upper position of the sewing direction of travel, the fabric presser Since the tip of the rod comes into contact with the protruding fabric portion of the succeeding fabric to the lower side in the sewing progress direction and pushes the protruding fabric portion back to the upper side in the sewing progress direction, the protruding fabric portion As described above, it is possible to perform an accurate cutting process so as not to generate waste in the strip-shaped object, while surely avoiding the occurrence of a defective situation such as the strip-shaped object being cut unnecessarily by the strip-shaped object cutting device.

In the sewing machine for sewing long strips according to the present invention, the fabric pressing device is closer to the inside of the sewing machine frame than the presser foot supporting the fabric retainer that presses the fabric set on the needle plate against the needle plate. It is preferably arranged in a position.
In this case, the presser foot that supports the fabric presser serves as a contact prevention guard against the movable fabric presser, which can give a sense of security to the sewing manufacturer and ensure safety. Is also effective.

In particular, by said fabric presser rod tip of the fabric press stop device which abuts slip rubber is attached to the protruding dough portion of said subsequent dough, along with the advancing movement of the dough presser rod, slip rubber There will be acting to push back the contact with the protruding dough portion the dough portion protruding to the downstream side of sewing traveling direction upstream side of the sewing traveling direction at a subsequent dough is reliably exhibit the protruding dough portion swath It is possible to more reliably avoid the occurrence of a defective situation such as unnecessary cutting by the cutting device.

Further, in the sewing machine for sewing a long strip-shaped object according to the present invention, the fabric sliding plate is placed on the upper portion of the fabric sliding plate located on the lower side in the sewing progress direction from the cutting position by the strip-shaped object cutting device. It is preferable that a fabric feed belt capable of forcibly transferring the transferred fabric in the sewing progress direction is arranged.
In this case, when sewing a long strip of fabric continuously on multiple fabrics, the fabric feed belt slips even if the sewing manufacturer does not manually feed the fabric, especially the preceding fabric, to the lower side in the sewing progress direction. It is possible to automatically transfer the fabric along the upper surface of the board, and the work of continuously sewing long strips to the side edges of multiple fabrics is easy and smooth with less work load. Can be done.

Further, in the sewing machine for sewing a long strip-shaped object according to the present invention, the sewing machine is located on the upper side in the sewing progress direction by the fabric pressing device on the upper side in the sewing progress direction than the cutting position by the strip-shaped object cutting device. By blowing air on the protruding fabric portion of the subsequent fabric that has been pressed down after cutting by the strip-shaped object cutting device, an air blowout that assists the transfer of the protruding fabric portion between the fabric feed belt and the fabric sliding plate. It is preferable that the tip of the tube device is arranged.
In this case, the protruding fabric portion of the succeeding fabric, which is pressed to the position on the upper side in the sewing progress direction by the fabric pressing device and is in a wrinkled state, is air from the position on the upper side in the sewing progress direction. It is possible to assist the transfer of the fabric feed belt and the fabric sliding plate by blowing it out to the lower side in the sewing progress direction by blowing out, and continuously sew a long strip on a plurality of fabrics. The work of attaching can be performed more smoothly and efficiently.

It is an overall perspective view of the sewing machine for sewing a long strip-shaped object which concerns on embodiment of this invention. It is an enlarged perspective view of the main part of the sewing machine for sewing a long strip-shaped object as above. It is a perspective view of the strip-shaped object cutting apparatus in the sewing machine for sewing a long strip-shaped object. It is an exploded perspective view of the strip-shaped object cutting apparatus of the same as above. Same as above. It is an enlarged plan view of a main part explaining a situation where a long strip is continuously sewn on a plurality of fabrics by a sewing machine for sewing a long strip. It is an enlarged side view of the main part which shows the situation of FIG. It is a figure which shows the shape of the cutting cloth to be sewn. It is a figure explaining the sewn state of a long strip-shaped object to a cutting cloth. It is a top view of the main part explaining a general continuous sewing situation. It is a top view of the main part explaining the continuous sewing situation by the conventional sewing machine for sewing long strips having a strip cutting apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view of the sewing machine for sewing long strips according to the present invention, and FIG. 2 is an enlarged perspective view of a main part of the sewing machine for sewing long strips.

In the sewing machine M for sewing a long strip-shaped object, a cutting fabric W having a special shape as shown in FIG. 7 is set on the upper portion of a sewing machine bed portion 41 connected to the left side portion of the sewing machine frame 40, and the cutting fabric W is sewn. A needle plate 1 and a fabric sliding plate (cross plate) 4 for guiding the feed in the traveling direction Y are provided, and the cutting fabric W is intermittently provided in the sewing machine bed portion 41 in the sewing traveling direction Y. Although the feed dog to be transferred and the drive mechanism thereof are incorporated, since the feed dog and the drive mechanism are well known, the illustration and the description of the specific configuration will be omitted.

The needle plate 1 is formed with a needle drop portion through which a needle (not shown) that reciprocates up and down moves in the vertical direction, and is set on the needle drop portion, the needle, and the needle plate 1. A long strip T (hereinafter referred to as tape T) such as lace for shorts or flat rubber worn in water is attached to the curved side edge of the cutting fabric W by the fabric retainer 6 that presses the cutting fabric W against the needle plate 1. A sewn portion 2 to be sewn to the portion We is formed.

In addition to the above configuration, the sewing machine M for sewing a long strip-shaped object is arranged so as to be overlapped on the curved side edge portion We of the cutting fabric W at a position on the upper side of the sewing traveling direction Y than the sewing portion 2. , The strip-shaped object feeding and supplying device 5 (hereinafter, referred to as the tape feeding device 5) that feeds and supplies the tape T, and the strip-shaped object cutting device 3 (hereinafter referred to as the tape feeding device 5) arranged at a position on the lower side of the sewing progress direction Y from the sewing portion 2. Hereinafter referred to as a tape cutting device 3), a fabric feed belt 7 arranged on the lower side of the sewing progress direction Y from the cutting position by the tape cutting device 3, a fabric pressing device 8, and an air blowing tube device. 9. And a floodlight 31a and a receiver 31b that output a cutting operation command to the tape cutting device 3 are provided.

The tape feeding device 5 is taped by handling a tape T that is rotatably supported at a position above the rear of the sewing machine frame 40 and is pulled upward from a tape storage portion (not shown) that is installed and stored on the floor surface. The tape handling roll 10 for adjusting the posture to be constant and the tape T are forcibly pulled out from the tape handling roll 10, and the pulled out tape T is forcibly pulled out to a position on the upper side of the sewing progress direction Y of the sewing portion 2. It is composed of a tape forced feed driving roller 11 for feeding and a plurality of tape guides 12 for guiding the forced movement of the tape T.

As shown in FIG. 2, the tape cutting device 3 slides from above to downward with respect to the fixed lower scalpel 3A arranged immediately after the sewing progress direction Y of the needle plate 1 and the lower scalpel 3A. The main configuration is a movable upper female 3B that swings in contact with the movable upper female 3B and an air cylinder 3C as an actuator that drives the movable upper female 3B. It is configured to cut in the tape width direction substantially orthogonal to the direction Y.

The specific configuration of the tape cutting device 3 is as shown in FIGS. 3 and 4. That is, the shaft member 13 having the movable upper female 3B fixed to the tip thereof is rotatably supported around the axis along the sewing progress direction Y on the upper female base 15 fixed to the sewing machine frame 40 via the set screw 14. At the same time, the fixed lower female 3A is fixed to the lower female base 16 fixed to the upper end of the sewing progress direction Y of the upper female base 15 via the set screw 17.

An upper female push spring 19 is interposed between the upper female base 15 and the collar 18 fixed to the shaft member 13, and the elastic force of the upper female push spring 19 causes the upper female 3B to become the lower female 3A. It is urged to press and swing in sliding contact. Further, an upper female capable of connecting the lower end member 21a of the telescopic rod 21 of the air cylinder 3C to the lower end portion of the shaft member 13 in the sewing traveling direction Y at a position deviated from the axial center of the shaft member 13. The connecting member 20 is fixed.

The tape cutting device 3 having the specific configuration as described above contracts the air cylinder 3C and slides the movable upper female 3B with respect to the lower female 3A from above to downward through the rotation of the shaft member 13. As a result, the tape cutting action is performed, and the air cylinder 3C is extended to rotate the shaft member 13 in the reverse direction so that the movable upper female 3B is swung up and down with respect to the lower female 3A.

The fabric feed belt 7 is arranged above the cross plate 4 portion located on the lower side of the sewing progress direction Y than the cutting position by the tape cutting device 3, and is usually a round belt having a circular cross section. Is used. The fabric feed belt 7 is axially positioned at the front-rear position in the sewing progress direction Y at the lower end of the inclination of the fixed belt base 22 extending in an inclined manner from a position facing the cross plate 4 toward the upper position on the lower side of the sewing progress direction Y. The two pulleys 23a and 23b are wound around the pulleys 23a and 23b and the pulleys (not shown) pivotally supported on the inclined upper end of the fixed belt base 22. A stepping motor 24 is directly connected to the shaft of the pulley at the upper end of the inclination of the fixed belt base 22, and by driving the fabric feed belt 7 via the stepping motor 24, the two pulleys 23a and 23b are separated from each other. The horizontal feed belt portion 7a located substantially parallel to the cross plate 4 is driven and moved in the same direction as the sewing traveling direction Y.

The fabric feed belt 7 configured as described above sews the cutting fabric W that is transferred between the cross plate 4 and the horizontal feed belt portion 7a after the tape is cut by the tape cutting device 3. It exerts the function of forcibly transferring to Y.

As is clearly shown in FIG. 2, the fabric pressing device 8 holds the fabric pressing rod 25 between the lower position on the lower side of the sewing progress direction Y and the lower position on the upper side of the sewing progress direction Y. It is composed of an air cylinder 26 that is driven to move forward and backward, and a non-slip rubber 27 that comes into contact with the protruding fabric portion (described later) of the succeeding fabric W2 is attached to the tip of the fabric holding rod 25. ing.

As shown in FIGS. 5 and 6, the fabric pressing device 8 configured as described above sequentially feeds a plurality of cutting fabrics W, that is, the preceding fabric W1 and the succeeding fabric W2 in the sewing progress direction Y. When the tape T is continuously sent out and supplied onto the curved side edges We and We of the fabrics W1 and W2 and the tape T is continuously sewn by the sewing portion 2, the sewing end end of the preceding fabric W1 is When the cutting position by the tape cutting device 3 is reached, the non-slip rubber 27 is attached to the fabric portion W2c of the sewing start end portion of the succeeding fabric W2 that protrudes to the lower side of the sewing progress direction Y from the tape sewing portion. The protruding fabric portion W2c is pressed to a position on the upper side of the sewing progress direction Y from the cutting position by the tape cutting device 3 and the protruding fabric portion W2c is cut at the cutting position. It is configured so that it can be avoided locally from.

Further, the fabric pressing device 8 is arranged in a posture along the left side portion of the sewing machine frame 40 so as to support the fabric retainer 6 that presses the cutting fabric set on the needle plate 1 against the needle plate 1. It is arranged at a position closer to the inside of the sewing machine frame 40 than the holding base 28. As a result, the presser foot 28 that supports the fabric presser 6 is driven to move forward and backward between the lower position on the lower side of the sewing advancing direction Y and the lower position on the upper side of the sewing advancing direction Y. It is designed to act as a contact prevention guard against 8.

The air blowing pipe device 9 is fixed to the left side surface of the fixed belt base 22 at the upper position of the cross plate 4 via a mounting jig 29 in a sewing progress direction of the air pipe 30. By bending the lower end portion of Y diagonally downward, an air outlet portion 30a for blowing air toward the tape cutting position by the tape cutting device 3 is formed.

The air blowing tube device 9 is pressed by the fabric pressing device 8 to a position on the upper side of the sewing progress direction Y and is in a wrinkled state, and the air blowing port portion 30a is directed toward the protruding fabric portion W2c. By blowing air from the fabric, the protruding fabric portion W2c is blown to the lower side in the sewing progress direction Y to assist the subsequent fabric W2 to be transferred between the fabric feed belt 7 and the cross plate 4. Has been done.

Next, using the sewing machine M for sewing a long strip (tape) according to the present embodiment configured as described above, lace is performed along the curved side edge We of the cutting fabric W such as shorts and swimwear. The operation of sewing the tape T such as flat rubber or flat rubber will be described mainly with reference to FIGS. 5 and 6.

A plurality of cutting fabrics, that is, a preceding fabric W1 and a succeeding fabric W2 are set one after another on the needle plate 1 of the sewing machine, and the preceding and succeeding fabrics W1 and W2 are sewn including a needle drop portion formed on the needle plate 1. While sequentially feeding to the portion 2, the tape T is continuously fed and supplied onto the curved side edges We and We of the preceding fabric W1 and the succeeding fabric W2 at a position on the upper side of the sewing progress direction Y with respect to the sewing portion 2. The tape T is continuously sewn.

As described above, when the tape T is continuously sewn to the curved side edges We and We of the preceding fabric W1 and the succeeding fabric W2, the tape sewing end portion W1e of the preceding fabric W1 and the tape sewing start end portion of the succeeding fabric W2. By performing continuous sewing with W2b close to each other so as to secure the minimum distance required for the cutting action of the tape cutting device 3, the tape sewing end portion W1e of the preceding fabric W1 and the succeeding fabric W2 are sewn together. When the minimum distance from the tape sewing start end W2b reaches the cutting position, the tape cutting device 3 cuts in response to an operation command from the floodlight 31a and the receiver 31b, causing waste in the tape T. The tape can be cut automatically without using it.

Nevertheless, the tape sewing end portion W1e of the preceding fabric W1 and the tape sewing starting end portion W2b of the succeeding fabric W2 are brought close to each other so as to secure the minimum distance necessary for the cutting action of the tape cutting device 3 and continuously. When sewing is performed, the sewing is performed with a part W2c of the sewing start end portion of the succeeding fabric W2 protruding from the tape sewing starting end portion W2b to the lower side of the sewing progress direction Y, and it is assumed that the sewing is performed as it is. When the tape is cut by the tape cutting device 3, the protruding cloth portion W2c may be cut unnecessarily.

In order to avoid such a situation, according to the present embodiment, when the sewing end end of the preceding fabric W1 reaches a predetermined tape cutting position, the fabric pressing rod 25 of the fabric pressing device 8 drives the air cylinder 26. Thus to advance to move toward the upstream side position below the sewing traveling direction from the downstream side upper position of the sewing traveling direction with the anti-slip rubber 27 of the distal end portion of the fabric presser rod 25, the protruding dough subsequent fabric W2 The action of abutting on the portion W2c and pushing the protruding fabric portion W2c back to a position on the upper side of the sewing progress direction Y from the cutting position by the tape cutting device 3 is exerted, whereby the protruding fabric portion W2c is surely pushed from the cutting position. in order to be avoided is possible, the protruding dough portion W2c can be avoided reliably defective situation is unnecessarily cut by the tape cutting device 3.

Then, after the tape is cut, the air blowing tube device is pressed toward the protruding fabric portion W2c, which is in a wrinkled state by being pressed to a position on the upper side of the sewing progress direction Y by the fabric pressing device 8. By blowing air from the air outlet portion 30a of No. 9, the protruding fabric portion W2c is blown to the lower side in the sewing progress direction Y to be transferred, and the succeeding fabric W2 is transferred between the fabric feed belt 7 and the cross plate 4. The fabric feed belt 7 will automatically feed the subsequent fabric W2 even if the sewing manufacturer does not manually feed the fabric W2. Therefore, the continuous sewing work of the tape T on a plurality of fabrics can be easily and smoothly performed.

Further, in the above embodiment, a round belt having a circular cross section is used as the fabric feed belt 7, but the present invention is not limited to this, and a flat belt or a plurality of narrow belts may be used.

1 Needle plate 2 Sewing part 3 Tape cutting device (long strip cutting device)
4 Cross plate (fabric sliding plate)
5 Tape feeding device (strip-shaped material feeding device)
6 Fabric retainer 7 Fabric feed belt 8 Fabric presser 9 Air blowout pipe device 25 Fabric retainer rod 26 Cylinder 27 Anti-slip rubber 28 Presser stand 40 Sewing machine frame M Sewing machine for tape sewing (sewing machine for sewing long strips)
W Cutting fabric We Curved side edge W1 Preceding fabric W2 Subsequent fabric W2c Overhanging fabric part T tape (long strip)
Y sewing direction

Claims (4)

A needle plate and a fabric sliding plate that set the fabric and guide the feed of the fabric in a predetermined sewing progress direction, a sewing portion including a needle drop portion formed on the needle plate, and sewing progress from the sewing portion. A strip-shaped object feeding and supplying device that feeds and supplies a long strip-shaped object so as to overlap on the side edge portion of the fabric at the upper position in the direction, and the sewing portion is arranged at the lower position in the sewing progress direction from the sewing portion and the sewing is performed. A long strip-shaped object provided with a strip-shaped object cutting device for cutting a long strip-shaped object sewn on the side edge portion of the fabric when the portion passes along the width direction of the strip-shaped object orthogonal to the sewing progress direction. A sewing machine for sewing
The trailing fabric is placed close to the end of sewing the long strip of the preceding fabric and the beginning of the sewing of the long strip of the succeeding fabric so as to secure the minimum space required for cutting the strip cutting device. In a state where a part of the sewing start end is protruding from the sewing start end to the lower side in the sewing progress direction, a plurality of fabrics are sequentially fed and continuously fed onto the side edges of the plurality of fabrics. When the long strip-shaped object to be sewn continuously at the sewn portion, when the sewing end end of the preceding fabric reaches a predetermined strip-shaped object cutting position, sewing proceeds from the lower position on the lower side in the sewing progress direction. can advance move toward the upstream side lower position of the direction, subsequent of the sewing have starting end of the fabric, which protrudes downstream side of sewing the advancing direction than the sewing portion of the long belt-shaped member by the advancing movement A fabric presser rod that abuts on the fabric portion and pushes the protruding fabric portion back to the upper side in the sewing progress direction from the strip-shaped object cutting position, and the fabric presser rod at the lower position on the lower side in the sewing progress direction and in the sewing progress direction. It is equipped with a fabric pressing device composed of a cylinder that moves forward and backward with the lower position on the upper side.
A sewing machine for sewing long strips, characterized in that a non-slip rubber that comes into contact with the protruding fabric portion of the succeeding fabric is attached to the tip of the fabric pressing rod of the fabric pressing device. Claim 1 is characterized in that the dough pressing device is arranged at a position closer to the inside of the sewing machine frame than a presser foot that supports a dough presser that presses the dough set on the needle plate against the needle plate. Sewing machine for sewing long strips as described in. A fabric capable of forcibly transferring the fabric transferred between the fabric sliding plate and the fabric sliding plate to the upper portion of the fabric sliding plate located on the lower side in the sewing progress direction than the cutting position by the strip-shaped object cutting device. The sewing machine for sewing a long strip-shaped object according to claim 1, wherein a feed belt is arranged. On the upper side in the sewing progress direction than the cutting position by the strip-shaped object cutting device, the strip-shaped object cutting device is placed on the protruding fabric portion of the succeeding fabric pressed by the fabric pressing device at the position on the upper side in the sewing progress direction. The tip of the air blowing tube device that assists in transferring the protruding cloth portion between the cloth feed belt and the cloth sliding plate by blowing air after cutting by the cloth is arranged.
The sewing machine for sewing a long strip-shaped object according to claim 3.

Images