JP2002173865A - Embroidering machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embroidering machine to dispense with the trimming work of the cut end of the embroidery thread after the embroidery work. SOLUTION: An electric clipper 3 furnished with a cutter 5 having a shearing blade 4 to cooperatively cut the thread and a body part 6 containing a motor to reciprocate the shearing blade is attached near a needle plate 1 directing the body downward and placing the upper face of the cutter to a level slightly lower than the upper face of the needle plate 1. The end of the embroidery thread cut by a thread cutting apparatus is further cut with the electric clipper.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery machine provided with a function for further cutting a cut end of an embroidery thread sewn on a base cloth.

[0002]

2. Description of the Related Art Products embroidered using an embroidery machine equipped with a thread cutting device for automatically cutting embroidery threads sewn on a base cloth have a problem in that the thickness of the needle plate is large and that the thread cutting device has About 12m behind the base cloth
The cut end of the embroidery thread of about m to 15 mm remains, and it is unsightly as it is. Therefore, in order to increase the commercial value, after the embroidery processing, it was necessary to further trim the cut end of the embroidery thread by hand using scissors or a manual clipper until the cut end became 5 mm or less.

[0003]

However, it takes time and effort to manually trim the cut end of the embroidery thread remaining on the back side of the base cloth every time the embroidery processing is completed. Also,
When the base cloth is removed from the embroidery machine, the base cloth loses its tension and the cloth surface becomes uneven, so when cutting the cut end of the embroidery thread remaining on the back side of the base cloth with scissors or clippers, It often happens that the cloth is damaged. In order to avoid such an accident, pruning work requires carefulness, which requires more labor and time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an embroidery machine which eliminates the need to manually cut a cut end of an embroidery thread after embroidery processing.

[0005]

The invention according to claim 1 is
A needle plate is provided on the bed, a sewing needle which moves up and down through a needle hole formed in the needle plate is provided above the needle plate, and a thread cutting device is provided below the needle plate. Embroidery machine, a cutter unit having shear teeth that cooperatively cut the yarn, and
An electric hair clipper having a main body with a built-in motor for reciprocating the shearing teeth, in the vicinity of the needle plate, with the upper surface of the cutter portion with the main body side down and in the same plane as the upper surface of the needle plate. In this case, the cut end of the embroidery thread cut by the thread cutting device is cut by an electric clipper so that the cut end is slightly shorter than the upper surface of the needle plate.

According to a second aspect of the present invention, in the embroidery machine according to the first aspect, the electric hair clipper is provided with a suction pipe having an opening near the cutter portion and connected to a vacuum suction source. And

According to a third aspect of the present invention, in the embroidery machine according to the first or second aspect, one end of a color changing head for sequentially selecting an embroidery thread of a desired color from a plurality of embroidery threads. A detection switch for detecting a movement to a position and energizing the electric hair clipper is provided.

[0008] In the embroidery machine according to the first aspect of the present invention,
After the embroidery processing on the base cloth is completed or during the embroidery processing, the base cloth is moved on the bed, and the embroidery pattern part where the embroidery thread is cut by the thread cutting device is directly above the cutter part of the electric clipper. Position. When the embroidery pattern portion of the base cloth is disposed immediately above the cutter section of the driven electric clipper, the cut end of the embroidery thread on the back side of the base cloth is cut shorter by the shearing teeth of the cutter section. In this way, the cut end of the embroidery thread is automatically trimmed short after the embroidery processing or during the embroidery processing by the electric hair clipper. Therefore, after the embroidery processing is completed and the base cloth is removed from the embroidery machine, the embroidery thread is manually removed. Eliminates the need to trim the cut ends.

In the embroidery machine according to the second aspect of the present invention, when the base cloth moves on the bed and the embroidery pattern portion is located near the cutter portion of the electric hair clipper, the cutter portion of the suction pipe connected to the vacuum suction source is provided. The cut end of the embroidery thread on the back side of the base cloth is sucked in the direction of the suction opening opened in the vicinity, and the cut end of the embroidery thread is drawn to the shearing teeth of the cutter unit and cut. The cut thread waste is sucked into the suction pipe from the suction port and discarded.

In the embroidery machine according to the third aspect of the present invention, when the color change head moves to one end position, the detection switch detects the movement and energizes the electric clipper to drive the electric clipper. In this way, during the embroidery process, the cut ends of the embroidery thread cut by the thread cutting device are automatically trimmed at any time by the electric clipper.

[0011]

Preferred embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show one embodiment of the present invention. FIG. 1 is a perspective view showing a part of an embroidery machine, and FIG. 2 is a perspective view showing the vicinity of a needle plate of the embroidery machine. is there. In FIG. 1, a part of the bed is shown in a broken state, and in FIG. 2, a part of the needle plate is shown in a broken state.

Since the original embroidery function of the embroidery machine is not different from the conventional embroidery function, its configuration will be briefly described. The embroidery machine shown in FIG. 1 has a plurality of embroidery units connected in series. In FIG. 1, reference numeral 1 denotes a needle plate provided on the bed 13, and reference numeral 2 denotes a needle hole formed in the needle plate 1. Above each needle plate 1, a color change head 14 for sequentially selecting an embroidery thread of a desired color from among the embroidery threads of a plurality of colors is provided. It is supported reciprocally. In the lower part of the color change head 14, five cloth pressers 15,
Further, a sewing device having five sewing needles 16 that move up and down through the needle holes 2 of the needle plate 1 is provided. Of the five sewing needles 16, each of the sewing needles 1 for the second and subsequent needles from the right
6, different colors of embroidery threads are passed through. The base cloth 10 mounted on the embroidery frame 17 with the embroidery surface stretched as shown by the two-dot chain line while sequentially switching to the sewing needle 16 through which the embroidery thread of the required color has been passed during the embroidery process. The embroidery thread of each color is sewn to each,
Embroidery in which embroidery threads of each color are mixed is applied to the base cloth 10.

In this embroidery machine, no embroidery thread is passed through the first sewing needle 16 at the right end, and embroidering is not performed with the first sewing needle 16. Although not shown, the embroidery thread sewn on the base cloth 10 is automatically cut below the needle plate 1 every time the sewing needle 16 is switched to change the color of the embroidery thread. Is provided. Since the embroidery process is not performed on the first sewing needle 16, a switch built in the machine is switched or one switch is provided so that the thread break detecting device does not operate when the sewing needle is switched to the first sewing needle 16. It is necessary to take measures to prevent the thread break detecting contact of the needle from coming into contact. In FIG. 1, reference numeral 18 denotes a balance, and 19 denotes a cover.

The above construction is the same as that of the conventional embroidery machine. In this embroidery machine, the electric clippers 3 are attached to the vicinity of each needle plate 1 provided on the bed 13.
The electric clipper 3 includes a cutter unit 5 having shearing teeth 4 for cooperatively cutting a thread, a main unit 6 containing a motor for reciprocating the shearing teeth 4, and an electric cord 7. This electric hair clipper 3 has the main body 6 facing down,
The upper surface of the cutter portion 5 is attached so as to be flush with the upper surface of the needle plate 1, or is attached so as to be slightly lower than the upper surface of the needle plate 1. In addition, the electric hair clipper 3
A suction pipe 8 having a suction port 9 opened is provided near the cutter section 5. The suction pipes 8 attached to the electric clippers 3 are connected to common base pipes 20 connected to a vacuum suction blower (not shown).

In the embroidery machine, the color changing head 14 moves during the embroidery process to move the first sewing needle 1 at the right end.
A first stitch detection switch 21 for detecting when the switch is switched to No. 6 is provided. As shown in FIG. 3, when the detection switch 21 is operated, the motor 22 of the vacuum suction blower connected to the base pipe 20 and the plurality of motors connected in parallel with each other are shown in FIG. Electric hair clipper motors 23a, 23
A current flows through each of b, 23c,..., and the blower and the plurality of electric clippers 3 are simultaneously driven.

When the embroidery process is performed using the embroidery machine provided with the electric clippers 3 as described above, the sewing needle is required after the embroidery process on the base cloth 10 is completed or during the embroidery process. 16 is switched to the first stitch on the right end, so that a vacuum suction blower and a plurality of electric hair clippers 3 are provided.
And a command signal for moving the base cloth 10 is output from the controller so that the embroidery pattern portion from which the embroidery thread has been cut is sequentially moved to a position immediately above the cutter unit 5 of the electric hair clipper 3. Keep it. Then, the base cloth 10 moves after the embroidery processing or during the embroidery processing, and the embroidery pattern portion 11 of the base cloth 10 is located immediately above the cutter section 5 of the electric clipper 3 as shown in a vertical cross section in FIG. When it moves to the position, the base pipe 2 is connected to the vacuum suction blower.
The cut end 12 of the embroidery thread on the back side of the base cloth 10 is sucked in the direction of the suction port 9 of the suction pipe 8 connected via the piercing line 0, and the cut end 12 of the embroidery thread is drawn to the shear teeth 4 of the cutter unit 5. . The cut end 12 of the embroidery thread drawn toward the shearing teeth 4 of the cutter unit 5 is guided between the shearing teeth 4, and is further trimmed by the shearing teeth 4 to be trimmed. The lint cut at this time is supplied from the suction port 9 to the suction pipe 8.
It is sucked into and discarded. In this way, the cut end 12 of the embroidery thread is automatically trimmed and trimmed shortly by the electric clipper 3 after or during the embroidery process, so after the embroidery process is completed and the base fabric is removed from the embroidery machine. There is no need to manually cut the cut end of the embroidery thread.

[0018]

The use of the embroidery machine according to the first aspect of the present invention eliminates the need to cut the cut ends of the embroidery thread after the embroidery processing. Therefore, the labor and time required for the embroidery processing are greatly reduced as compared with the conventional embroidery machine. In addition, there is no worry that the base fabric is erroneously damaged as in the related art.

In the embroidery machine according to the second aspect of the present invention, the cut end of the embroidery thread is attracted to the shearing teeth of the cutter portion, and is reliably cut. Further, the cut lint can be collected and discarded without scattering.

In the embroidery machine according to the third aspect of the present invention, the electric clippers can be driven at any time during the embroidery processing to automatically cut the cut ends of the embroidery thread.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention and showing a part of an embroidery machine.

FIG. 2 is a perspective view showing the vicinity of a needle plate of the embroidery machine shown in FIG.

FIG. 3 is a diagram showing a schematic configuration of an electric system of the embroidery machine shown in FIG. 1;

FIG. 4 is a side view, partly in vertical section, for explaining the operation of the embroidery machine shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Needle plate 2 Needle hole of needle plate 3 Electric hair clipper 4 Shearing tooth 5 Cutter part 6 Body part 7 Electric cord 8 Suction pipe 9 Suction pipe suction port 10 Base cloth 11 Embroidery pattern part 12 Cut end of embroidery thread

Claims (3)

[Claims] 1. A needle plate is provided on a bed, and a sewing needle which moves up and down through a needle hole formed in the needle plate is provided on an upper side of the needle plate. An embroidery machine provided with a thread cutting device, wherein the electric clipper having a cutter portion having shearing teeth for cooperatively cutting a thread and a main body portion incorporating a motor for reciprocating the shearing teeth is provided on the needle plate. Near the upper surface of the cutter plate so that the upper surface of the cutter unit is flush with the upper surface of the needle plate or slightly lower than the upper surface of the needle plate, with the electric hair clipper. An embroidery machine, wherein the cut end of the embroidery thread cut by the thread cutting device is cut shorter. 2. The embroidery machine according to claim 1, wherein the electric hair clipper is provided with a suction pipe having a suction port opened near a cutter portion thereof and connected to a vacuum suction source. 3. A detection switch is provided for detecting movement of a color changing head to one end position and sequentially energizing the electric clipper for sequentially selecting an embroidery thread of a desired color from a plurality of embroidery threads. An embroidery machine according to claim 1 or claim 2.