JPS59171615A - Machine capable of sewing tape and the like - Google Patents

Abstract

PURPOSE:To carry out efficient sewing by installing a tape cutting device and a device for moving a tape cut end to the sewing position between a tape supply device and a sewing device. CONSTITUTION:A tape cutting device 21 to cut sewing tape 17 supplied from a tape supply source 18 is arranged on the supply course of tape 17 coming from the tape supply source 18 to the sewing position 5. A tape transferring device 22 to transfer the cut end on the supply source side of the tape 17 cut by the tape cutting device 21 to the sewing position 5 is equipped on the tape 17 supply course between the tape supply source 18 and the sewing position.

Description

Detailed Description of the Invention Technical Field The present invention relates to the processing of thermoplastic sheet-shaped materials (continuous ultrasonic welding using an ultrasonic welding machine that performs continuous ultrasonic welding processing, and sheet-shaped processing fees for fabrics, etc.) This relates to a processing machine such as a sewing machine that can apply stitching to the material, and in particular, it applies processes such as welding and stitching to the sheet-like processing material while reeling the sheet-like processing material at the processing position. The present invention relates to a processing machine configured to be able to sew tape etc. that are continuously supplied from sources such as the above.

Prior Art In processing machines in the technical fields mentioned above, for example,
When using an ultrasonic welding machine to sew a first stitch tape from the inside of a garment such as a raincoat to the seam point, use scissors or the like to sew the tape supplied from the tape supply source at the end of the stitching process. The structure was such that a person cut each time to prepare for sealing the next suture site, which not only made the cutting operation troublesome, but also made it impossible to make the cut ends uniformly. . Moreover, when the end position of the sealing work does not reach the end of the garment and the sealing work is stopped midway, the cut end on the tape supply source side is positioned in front of the processing position. Prior to starting the next sealing operation, an operation is required to pull out the cut end of the tape to its processing position, which has the problem of extremely poor workability.

Also, in some of the above-mentioned sewing machines, especially in the field of industrial sewing machines, a tape or the like is sewn continuously along the side edge of the workpiece cloth, and a tape or the like is continuously sewn on the rear end of the sewn workpiece cloth. Sewing machines have already been provided that are equipped with a cutting device that cuts the seams on the tape along with the tape. Because it is placed at the rear of the tape supply path that leads to the stitch forming position, the tape sewing operation does not reach the end of the workpiece cloth like the stitching operation described above, and the tape sewing operation is completed midway through. This method has a problem in that it cannot be used in operations where the tape is stopped and only the tape is cut midway through.

Purpose This invention has been made in view of the problems in processing machines that can sew tape as mentioned above. A tape transport device is installed on the tape supply path leading from the supply source to the sewing position as the processing position, and transports the cut end of the tape supply source side cut by the cutting device to the vicinity of the sewing position. By doing so, the tape can be cut quickly and reliably during sewing work on clothing where the end position of the tape sewing work does not reach the end of the material to be processed and the work is stopped midway through. It is an object of the present invention to provide a processing machine that improves workability by transferring the cut end from a tape supply source to a sewing position in preparation for the next sealing operation.

Embodiment Below, the details will be explained based on the drawings showing an embodiment of the present invention in an ultrasonic welding machine.

In FIG. 1, a sewing machine frame 1 includes a sewing machine head 1a and a bed 1b, and is placed on a table 2. An ultrasonic transducer (not shown) is connected to the lower end of the transducer assembly 3, and the transducer assembly 3 is attached to a support such that a portion thereof protrudes from the circular hole IG formed in the bed 1b. 3a, 3
The table 2 is screwed to the bed 1b from below through the screws 1b and 1b. A processing horn 4 having a substantially cylindrical shape is connected to the upper end of the vibrator assembly 3. A circular machining surface 5 is formed on the upper end surface of the machining horn 4, and the machining surface 5 is configured to be ultrasonically vibrated in the downward direction.

A presser roller 6 is arranged above the machining horn so as to face the machining surface 5. The presser roller 6 is at stage f
It consists of an endless belt 6a made of foamed nitrile rubber attached to the stepped portion 7a of the shaft 7.
is rotatably supported on a roller support 8. The roller support 8 is connected to a presser bar 9 to which a downward pressing force is always applied by a spring (not shown), and is raised (separated) as shown in FIG. It is arranged to be able to move up and down between the position and the lowered (contact) position shown in FIG. A gear 11 is fixed to the stepped shaft 7, and a timing belt 13 is rotated as a motor 12 attached to the lower surface of the table 2 rotates.
, the shaft 14, and the timing belt 15, the stepped shaft 7 is rotated to rotate the presser row 56.

A reel support 16 is fixed to the left end of the lower surface of the sewing machine head 1a, and a reel 18 on which a sewing tape 17 is wound is loaded on the reel support 1G. Similarly, a guide bottle 19 is disposed on the front side of the left end of the -F plane of the sewing machine head 1a, and a tape guide 20 having a notch 20a formed in the front is disposed on the entire jaw portion of the sewing machine head 1a. As shown in FIGS. 3 to 5, the sewing tape 17 is attached to the roller support 8 on the tape supply path from the reel 18 of the sewing tape 17 to the processing surface 5 serving as the processing position. A tape cutter device 21 for cutting J and N@ cut by the tape cutter device 21.
A tape transfer device 22 for transferring the cut end of the tape 17 to the processing surface 5 as a processing position is installed.

The tape cutter device 21 includes a hot wire 24a embedded along the axial direction in a cylindrical body 24 made of a heat insulating material fixedly disposed below a support bracket 23 screwed to the right end of the roller support body 8. and the cylindrical body 24
A pair of guide rails 25b, 25b that can be engaged with a pair of grooves 24b, 241 formed on the upper surface of both sides ([also provided with a protrusion 25'a at a position opposite to the hot wire 24a in the middle part)] The convex portion 25a is the hot wire 24a.
A movable body 25 disposed so as to be able to come into contact with and separate from the roller support body 8, a solenoid 26 fixed to the roller support body 8, etc., are rotatably supported around a boss 23a formed at the lower right side of the support brackets 1 to 230. Based on the operation of the cutoff switch 28, the control circuit (not shown) starts energizing the hot wire 24a, and the solenoid 26 is driven. The movable body 25 is moved from the separated position shown in FIG. 5 to the contact position where the convex portion 25a of the movable body is brought into contact with the hot wire 24a.

The tape transport device 22 includes a pair of rollers 29 and 30 rotatably supported on the support bracket 23 and disposed in close contact with each other to transport the sewing tape 17 downward along its supply path. The sewing tape 17 includes a DC motor 31 operatively connected to the roller 29, and is sandwiched between the pair of rollers 29 and 30.
The sewing tape 17 is configured to be transported downward as the DC motor 31 rotates based on the operation of a control circuit (not shown).

Below the support bracket 23 is the roller 29.3.
A guide surface 32a for guiding the sewing tape 17 passed between 0 and 17 onto the processing surface 5 as a processing position and an opening 3211 for moving the movable body 25 of the tape cutter device 21.
A wrapper 32 for guiding the tape is attached.

Next, the operation of the apparatus configured as described above will be explained.

First, the operator selects the tape material, tq size, width, etc. according to the tape sewing work content of the workpiece W/\, and then supports the reel 18 on which the selected sewing tape is wound. After the presser foot lifting lever 10 is operated, the roller support body 8 including the tape cutter device 21 and tape transport device 22 is moved so that the outer circumferential surface of the presser roller 6 is aligned with the processing surface 5 as shown in FIG. and raise it to the raised position separated from it. Next, the lff1W tape 17 is bent in the guide bin 19 along the tape supply path shown in FIGS. 1 and 2, and the notch 20 formed in the tape guide 20 is
After the sewing tape 17 is passed through from a and the leading end of the sewing tape 17 is guided between the pair of rollers 29 and 30, the feed roller rotation command switch 33 is pressed and a control circuit (not shown) rotates the DC The motor 31 is rotated in one direction, and the F11 wearing tape 17 is
The tip of the trumpet 32 protrudes from the opening 32G and is positioned between the processing surface 5 and the presser roller 6.

Next, the material W to be processed is placed on the processing surface 5 and the tip of the sewing tape 17 is positioned at the desired sewing position on the material W, and then the presser foot roller 6 is moved to the second position based on the operation of the presser foot lifting lever 10. Lower the machine to the position shown in Figure 2 and machine the surface 5.
The sewing tape 17 and the processing material W are held and held between the two.

Next, the machining horn 4 is caused to vibrate ultrasonically based on the operation of an operation pedal (not shown), and the motor 12 is started, and the presser roller 6 is moved in one direction via the belt 13, shaft 14, belt 15, shaft 7, etc. By avoiding the rotational drive, the work of sewing the sewing tape 17 onto the workpiece IW can be performed continuously as shown in FIG. 2.

At this time, for example, as shown in FIG. 2, if the cutting switch 28 is pressed to stop the above-mentioned sewing operation in the middle of tying the neck while the processing material W is being continuously supplied,
As the heating wire 24a starts to be energized, the solenoid 26 is driven, and the lever 27 is rotated.
is in contact with the hot wire 24a, so the sewing tape 17
is held between the convex portion 25a and the hot wire 24a, and the tension is increased to the sewing tape 17 during the sewing operation of sewing the sewing tape 17 to the workpiece W, and the hot wire 2
The vi wearing tape 17 is cut at the holding position by the heat generated by the vi-wearing tape 4a. After that, when the sewing of the cut end of the cut sewing tape 17 to the workpiece W is finished, when the operator releases the operation pedal, etc., the ultrasonic vibration of the processing horn 4 stops. At the same time, the motor 12 is stopped, and the sewing operation described above is stopped.

Next, when the operator operates the presser burn lever 10 to sew the tape to the 51st position of the processed + or + size W or to sew the tape to another processing material, the tape Cutter device 21 and tape transfer device 22
The roller support 8 containing the roller support 8 is raised. At this time, in response to the generation of a detection signal that detects a presser foot lifting operation (not shown), the DC motor 31 is rotated in a direction to transport the cut end of the ~q sewing arp 17 upward, and then rotated in the opposite direction a certain number of times. Then, the cut end of the sewing tape 17 is automatically transferred along the guide surface 32a of the wrapper 32 to a nearby position located directly below the presser roller. Therefore, when performing work such as sewing tape to a different position of the workpiece W or tape In to another workpiece following the tape sewing work described above, the work of pulling out the cut end of the tape to the workpiece position is omitted. The cut end of the tape is automatically and reliably transferred to the processing position, so the desired processing material is placed at the processing position on the processing surface 5.
After doing so, these operations can be carried out immediately in the same way as the above-mentioned operations (the same number of times the presser foot lifting lever 10 is lowered), which can contribute to improving the operating efficiency.

In the above embodiment, after the heating wire 24a is energized by pressing the cutoff switch 28 and the sewing tape 17 is cut due to the holding of the heating wire 24a and the movable body convex portion 25a, the DC motor 31 is temporarily turned off. Since the cut end of the tape was prevented from rotating in the direction of transferring it upward, the hot wire 24
Even if the cut end of the wire tube tape 17 on the tape reel side that is melted by energizing a is attached to the hot wire 24a or the movable body convex portion 25a (q'!), the attachment point is completely different from that described above. Therefore, the sewing tape 17 can be reliably transferred to the processing position thereafter.

In the above embodiment, the tape cutter device cuts the tape using the hot wire 24a and the movable body convex portion 25a disposed so as to be able to come into contact with and separate from the hot wire 24a. For example, a cutter device in which a sewing tape is disposed between a movable blade equipped with a cutting blade and a fixed blade or a fixed member serving as a fixed blade, which is well known as a normal cutting vfI device, can also be used. The present invention is put into practical use! ? It is something that

In the above embodiment, the sewing tape 17 is held between the pair of rollers 29 and 30 as a means for transporting the cut end of the tape on the tape reel side to the processing position near the processing surface 5. An example has been shown in which the sewing tape is automatically transferred by rotationally driving the DC motor 31 operatively connected to the roller 29. However, as this transfer means, a drive means such as a motor is used. Even if the sewing tape is not automatically transferred by
For example, a manual operation knob may be provided in place of the I) C motor 31, or the sewing tape may be manually transported by manual operation, and rollers or the like may not necessarily be used as the means for holding and transporting the sewing tape. At least, the cut end of the tape is held by a mechanical grip device or the like that is activated by utilizing mechanical displacement based on the operation of a cut-off switch, etc., and then the grip device is moved to the vicinity of the processing position. It is clear that this can be achieved by

Furthermore, in the above embodiment, since the actual tape sewing position on the material W to be processed when operating the cutoff switch is different from the sewing work end position, the operator may 1= shows an example in which the cutting operation is performed early after considering the amount of sewing based on the tape located between the tape cutting position and the processing position. In order to be able to notify the operator of the exact time to start the cutting operation, it is necessary to select a position that is located in front of the actual processing position by an amount corresponding to the length of the tape between the tape cutting position and the processing position. The sewing machine head 1a is equipped with a light source for emitting a light spot or the like as an index onto the workpiece W.
Needless to say, it is also possible to provide it.

Furthermore, in the above embodiment, an example was shown in which the present invention was embodied in an ultrasonic welding machine, but it may also be applied to processing machines such as deep sewing machines such as industrial sewing machines, etc. is self-evident.

Effects As described in detail above, the present invention provides a processing INN machine configured to be able to sew tape supplied from a tape supply source together with processing materials, and a tape supply path from the tape supply source to the processing position. A tape cutting device for cutting the tape is disposed on the top, and the cutting device 111'
This equipment is equipped with a tape transport device that transports the cut end of the tape on the tape supply source side that is cut by the device i near the processing position, and can quickly and reliably cut the tape during sealing work, etc. Not only can the cut end of the tape from the tape supply source be the processing position, but also in tape stitching and sealing work where the end position of the work does not reach the end of the material to be processed and the work is stopped midway. It can be transported to a nearby location, the next sealing work can be started promptly, and the work efficiency can be improved, and it can exhibit excellent effects such as saving 1q.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention applied to an ultrasonic welding machine, FIG. 2 is a side view showing sewing work performed by this device, and FIGS. 3 and 4 ( 5 is a front view and a side view showing enlarged main parts of the present invention, respectively, and FIG. 5 is an enlarged plan view partially cut away to explain the present invention in detail. , 4 is a processing horn, 5 is a processing surface, 6 is a presser roller, 8 is a 1]-ra support, 17 is a tape for sewing section, 18 is a reel, 20 is a tape guide, 21 is a tape cutter device, 22 is a tape Transfer device, 24a is a hot wire, 25'a is a convex portion of a moving hole, 26 is a solenoid, 2
7 is a lever, 29 and 30 are [1-ra], 31 is a DC motor, and 32 is a wrapper C'. Patent Applicant Brother Kyo Co., Ltd. President Katsuji Kawashima Figure 1 Figure 2 X Figure 3 Figure 4

Claims (1)

[Claims] 1. A processing device that performs processing such as sewing on a sheet-like processing material at a processing position, and a tape supply device that supplies tape or the like to the processing position of the processing device, In a processing machine capable of sewing a tape, etc., which is configured to sew a tape, etc. supplied from the tape supply device together with the sheet-like processing material when sewing a sheet-like processing material based on the processing device, the tape, etc. A tape cutting device for cutting the tape etc. supplied from the feeding device is placed on the tape feeding path from the tape feeding device to the processing position. A processing machine capable of sewing tape, etc., characterized in that a tape transport device is installed to transport the cut end of the tape, etc. from the tape supply device to the vicinity of the processing position. 2. The tape cutting device includes a manually operable operation switch, and is configured to cut the tape, etc. as the operation switch is operated. A processing machine that can sew tape, etc. 3. A patent characterized in that the tape cutting device includes a wire disposed close to a plane through which the tape or the like passes along the tape supply path, and an energizing circuit that energizes the wire. A processing machine capable of sewing the tape, etc. according to claim 1 or 2. 4. The tape transfer device includes two rollers disposed oppositely between the tape supply device and the tape cutting device on the tape supply path, sandwiching the tape or the like that is passed on the tape supply path. and a motor connected to at least one of the rollers, the tape or the like from the tape supply device being cut by the tape cutting device is moved near the processing position by rotating the motor. A processing machine capable of sewing a tape, etc. according to any one of claims 1 to 3, characterized in that the processing machine is configured to transport a tape, etc. up to 5. The machining station is characterized in that it includes a machining horn connected to an ultrasonic vibrator, and a presser roller etc. arranged so as to be able to come into contact with and separate from the machining surface formed on the machining bone. A processing machine capable of sewing a tape, etc. according to any one of claims 1 to 4.