JP2003089962A - Needle punch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a needle punch device, safe and inexpensive so as to be simply mounted to a conventional industrial, home sewing machine, etc., without preparing an exclusive sewing machine. SOLUTION: This needle punch device is provided by installing multiple needle-penetrating holes at the central position and at an almost same distance on its concentric circles of an end surface of a column-shaped needle block moving in up and down direction by attaching it to a needle rod moving in up and down direction of the machine, inserting the base part of a needle installed with a scratching projection in its surroundings for scratching out the composition fiber of a decorative fiber such as a non-woven fabric, cotton, woolen yarn, etc., while installing a screw-fixing hole opening at each of the needle inserting holes at the side surface of the column-shaped needle block for freely fixing the needles with a screw, and fixing the base part of a restricting coil spring having a diameter covering the outer circumference of needle group and a length for covering the tip end of the needle on being elongated, at the column-shaped needle block, or the needle punch device is provided by installing the fixing screw holes independently so as to open at each of the needle insertion holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to woven fabrics such as woven fabrics and knitted fabrics with decorative fabrics such as non-woven fabric, cotton and wool at a partial position, and to fabricate the composition fibers partially or entirely. It is pierced into the tissue of to show an embroidered decorative pattern (needle punch)
It is about improving things.

[0002]

2. Description of the Related Art Conventionally, in order to perform embroidery, one embroidery thread is generally passed through the top and bottom of the cloth, but it takes too much time and requires skill. However, there are drawbacks such as high cost, and especially embroidery work over a large area is extremely difficult in terms of time and labor. Therefore, a method conceived is to pierce and fix the composition fiber of the decorative fiber on the surface of the cloth at a large number of places in one operation.

However, in the conventional method of staking a composition fiber, the surface of the stab needle is formed by a conical needle provided with a scratching protrusion that scratches only downward, and the surface is exposed as a sharp surface, which is dangerous. In particular, it is dangerous in the work of replacing the conical needle, and a separate presser plate for pressing the fabric and the decorative fiber is required, which requires a dedicated sewing machine and requires a large amount of equipment cost. There are various drawbacks.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a safe and existing sewing machine without preparing a dedicated sewing machine.
The purpose is to provide an inexpensive one so that it can be easily attached to a household sewing machine or the like.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a plurality of needles are installed at the center position of the end face of a cylindrical needle block which is attached to a vertically moving needle bar of a sewing machine and vertically moved, and at substantially equidistant positions on the concentric circles. An insertion hole is provided, and a non-woven fabric is provided around the needle insertion hole.
Insert the base of the needle that has scratching protrusions that scratch the composition fibers of decorative fibers such as cotton and wool only downward, while the side surface of the cylindrical needle block has a fixing screw hole that opens into each needle insertion hole. A needle punch device is provided in which a needle is fixed by a screw, and the base of a presser coil spring is fixed to the tip of the cylindrical needle block with a diameter that covers the outer circumference of the needle group and a length that covers the tip of the needle during extension. In addition, the fixing screw hole is independently provided so as to open in each needle insertion hole.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. The center position of an end face 2'of a cylindrical needle block 2 which is attached to a vertically moving needle bar 1 of a sewing machine and vertically moved, and substantially equidistant positions on its concentric circles. A plurality of needle insertion holes 3, 3, 3, ...
Into the needle insertion hole 3, a base 6'of a conical needle 6 provided with scratching projections 5 and 5 for scratching only the composition fibers of the decorative fiber 4 such as non-woven fabric, cotton and wool around the needle insertion hole 3, Each of the needle insertion holes 3, 3, 3 is formed on the side surface of the cylindrical needle block 2.
Are provided with fixing screw holes 7 and 7 to open, and the conical needles 6 are fixed by the screws 8. The tip of the cylindrical needle block 2 has a diameter that covers the outer circumference of the needles 6 and 6 group, and at the time of extension. The base of a presser coil spring 9 having a length that covers the tips of the needles 6, 6 ... Is fixed.

The fixing screw holes 7 and 7 are provided so as to pass through the needle insertion hole 3 at the central position and the one needle insertion hole 3 located concentrically, and the needles 6 and 6 are fixed by the two screws 8 and 8. Although it may be fixed, the process may be complicated and the yield may be deteriorated. However, the fixing screw holes 7, 7 ...
By independently providing the needle 6 so as to be opened, the processing is easy and the needle 6 can be replaced quickly.

[0008]

The present invention is embodied as described above. To use it, the fiber cloth 10 and the decorative fiber 4 are overlapped and placed on the needle plate 11 of the sewing machine, and the cylindrical needle block 2 is lowered. The decorative fiber 4 and the fiber cloth 10 at the position to be processed by the presser coil spring 9 are pressed, and then the decorative fiber 4 and the fiber cloth 10 at the position pressed by the presser coil spring 9.
Pierce the needle several times with the needles 6, 6 ... In the case of the wide decorative fiber 4, the cylindrical needle block 2 is reciprocated several times. The scratching projections 5 are inserted into the fiber cloth 10 by scratching the composition fibers of the decorative fiber 4 by the piercing of the needles 6, 6 ..., and the decorative fiber 4 is scratched by the elevation of the needle bar 1, the needles 6, 6 ,. The scraped composition fibers are sandwiched and placed in the tissue of the fiber cloth 10. At this time, since the decorative fiber 4 and the fiber cloth 10 are pressed by the pressing coil spring 2, the decorative fiber 4 and the fiber The cloth 10 is completely separated from the needle 6 without lifting. The work is repeated in the following order. If necessary, an adhesive may be applied to the back side of the fiber cloth 10 to prevent the pierced composition fibers from coming off.

When the needle 6 is worn or damaged, the screw 8 is loosened and replaced.

[0010]

[Effect] As described above, a plurality of needle insertion holes are provided at the center position of the end surface of the cylindrical needle block that is attached to the vertically moving needle bar of the sewing machine and vertically moved and at substantially equal intervals on the concentric circles, Into the needle insertion hole, the base of the needle provided with a scratching protrusion that scratches only the composition fibers of the decorative fiber such as non-woven fabric, cotton, and wool around the needle is inserted, while each needle is provided on the side surface of the cylindrical needle block. A fixing screw hole that opens in the insertion hole is provided so that the needle can be fixed by a screw.The tip of the cylindrical needle block has a diameter that covers the outer circumference of the needle group, and has a length that covers the tip of the needle when extended. Since the base of the spring is fixed, the needle 6 is surrounded by the presser coil spring and is less likely to come into direct contact with the human body, and the needle replacement work is smooth and safe.

Further, when the needle is inserted into or pulled out from the fabric cloth and the decorative fiber, the presser coil spring holds down the fabric cloth and the decorative fiber, so that the textile cloth and the decorative fiber at the processing position do not float and the smooth work can be performed. In addition, since it does not require a separate metal fitting, it can be easily attached to existing industrial and household sewing machines, does not require an expensive dedicated sewing machine, has low equipment costs, and greatly reduces processing costs. You can

Further, since the fixing screw holes are independently provided so as to open in the respective needle insertion holes, there is an advantage that processing is easy and the yield is good, and the needle 6 can be replaced quickly.

[Brief description of drawings]

FIG. 1 is a vertical cross sectional explanatory view of a device of the present invention.

FIG. 2 is a bottom view for explaining the device according to the present invention.

[Explanation of symbols]

1 is a needle bar 2 is a cylindrical needle block 3 is a needle insertion hole 4 is a decorative fiber 5 is a scratching protrusion 6, 6 ... Needles 6'is the base 7 is a fixing screw hole 8 is a screw 9 is a presser coil spring 10 is a fiber cloth 11 is a needle plate

Claims (2)

[Claims] 1. A plurality of needle insertion holes are provided at the center position of the end surface of a cylindrical needle block which is attached to a vertically moving needle bar of a sewing machine and moved up and down, and at substantially equidistant positions on the concentric circles, and the needle insertion holes are provided. Insert the base of the needle, which has scratching protrusions that scratch the composition fibers of decorative fibers such as non-woven fabric, cotton, and wool around it, on the other hand, while opening the side of the cylindrical needle block into each needle insertion hole. A needle screw can be fixed with a screw by providing a fixing screw hole, and the base of the presser coil spring with a diameter that covers the outer circumference of the needle group and a length that covers the tip of the needle when extending is provided at the tip of the cylindrical needle block. Fixed needle punch device. 2. The needle punch device according to claim 1, wherein the fixing screw holes are independently provided so as to open in the respective needle insertion holes.