TWI759707B - Sewing machine needle with replaceable thread guide - Google Patents

Abstract

The utility model relates to a sewing machine needle tumbler with a replaceable thread-passing plate, which comprises a needle-engraving body, a thread-passing plate and a pressing plate. The casting body has a first groove on one end, and a second groove on the side of the casting body that does not face at least one yarn and communicates with the first groove. The thread passing plate has a groove. The assembly section in the first slot, a limit section connected to the assembly section and arranged in the second slot, and a pass extending from the side of the assembly section not connected to the limit section and formed with a plurality of wire holes. A line segment, the pressing plate is mounted on the side of the needle tweezer body where the second groove is arranged, and at least presses the limiting section of the wire passing plate.

Description

Sewing machine needle with replaceable thread guide

The present invention relates to a sewing machine needle, in particular to a sewing machine needle with a replaceable thread-passing plate.

Press, the applicant of this case has proposed a sewing machine needle, as disclosed in Taiwan Published Patent No. 201725295, the sewing machine needle includes a seat and a thread-passing element, the seat is made of a first material, and the The seat body has an assembly rod disposed on the top and an assembly groove disposed on a side away from the assembly rod. The wire-passing element is made of a second material, the second material is different from the first material, and the hardness of the second material is greater than that of the first material, and the wire-passing element has a An assembly section in the assembly groove, a wire passage extending from the assembly section in a direction away from the base body, and a plurality of wire passage holes arranged on the wire passage.

However, the above-mentioned thread-passing element is only implemented by sticking during assembly. When the thread-passing element is in the condition of long-term sewing, the thread pulling element for a long time will cause the thread-passing element to fall off abnormally relative to the seat body. , and when the wire-passing component falls off, the residual glue will affect the assembly of the other wire-passing component to be replaced, and the treatment of the residual glue needs to be advanced.

The main purpose of the present invention is to solve the problem that the conventional structure is prone to abnormal separation due to yarn pulling under the condition of long-term sewing.

In order to achieve the above object, the present invention provides a sewing machine needle trowel with a replaceable thread-passing plate, which includes a needle-dispensing body, a thread-passing plate and a pressing plate. The casting body has a first groove at one end and a second groove on the side of the casting body that does not face at least one yarn and communicated with the first groove. The second groove includes a connection to the A first section of the first groove and a second section connected to the first section and having a width greater than the first section. The wiring board has an assembly section set in the first slot, a limit section connected to the assembly section and set in the second slot, and a limit section extending from the side of the assembly section not connected to the limit section and extending from the limit section. The wire-passing segments of the plurality of wire-passing holes are formed, and the limiting segment comprises a pair of necks arranged in the first segment and a head arranged in the second segment and restricted by the first segment of the second groove. The pressing plate is mounted on the side of the acupuncture body on which the second groove is arranged, and at least presses the limiting section of the wire-passing plate.

In one embodiment, the platen is placed in the second slot, and the second slot has a third section extending from the second section and providing the platen disposed therein.

In one embodiment, the acupuncture body has an installation hole disposed in the third section of the second groove and provided with a platen assembly.

In one embodiment, the pressing plate includes a mounting portion located in the second groove and a pressing portion connected to the mounting portion and pressing the limiting section of the cable pass plate, and the pressing portion and the mounting portion are located at different levels.

In one embodiment, the needle caster body has a plurality of sewing needle mounting holes located in the first groove, the thread-passing plate has at least a pair of needle passing holes corresponding to the sewing needle mounting holes, and the sewing needle mounting hole has a first sewing needle mounting hole. an extension line, and each of the via holes has a second extension line which can be staggered with the first extension line.

In one embodiment, the second groove is in a tapered shape, and the head is disposed at the widest part of the second groove.

In one embodiment, the acupuncture body is made of a first material, and the wire-passing plate is made of a second material different from the first material.

Through the above-mentioned implementation of the present invention, compared with the conventional one, the sewing machine has the following characteristics: the needle of the sewing machine uses the second groove to apply the first stage of positioning to the thread-passing plate, and then cooperates with the pressing plate to apply the second-stage positioning to the thread-passing plate. The positioning of the stage ensures that the thread-passing board will not fall off abnormally during the sewing process. In addition, through such a design, the problem of difficult replacement caused by the connection of the wiring board with adhesive can be solved.

The detailed description and technical content of the present invention are described as follows with reference to the drawings:

Please refer to FIG. 1 , the present invention provides a sewing machine needle tumbler 10 with a replaceable thread guide plate, the sewing machine needle tumbler 10 is provided with a plurality of sewing needles 20 to be assembled on, and can be driven by a needle tumbler driving rod 21 to generate a reciprocating motion . Please refer to FIGS. 1 to 7 , the sewing machine tumbler 10 includes a tumbler body 11 that can be assembled with the tumbler drive rod 21 , a thread-passing plate 13 and a pressing plate 14 , the tumbler body 11 has a A first groove 111 at one end, and a second groove 112 which is provided on the side of the acupuncture body 11 that does not face at least one yarn and communicates with the first groove 111 . Further, the first slot 111 is disposed on the side of the tumbler body 11 that is not connected to the tumbler driving rod 21 , that is, the side facing a sewing machine presser foot 22 . In one embodiment, the first slot 111 runs through two opposite sides of the sewing machine needle 10, and one side of the first slot 111 runs through is the sewing machine needle 10 facing the yarn (not shown in the figure). One side, and this side defines the front face of the sewing machine needle 10 , and the other side through which the first groove 111 penetrates is the back of the sewing machine needle 10 . On the other hand, according to the present invention, the second groove 112 is disposed on the back of the sewing machine needle 10 , and the surface of the second groove 112 is perpendicular to the surface of the first groove 111 . In addition, the second slot 112 includes a first section 113 connected to the first slot 111 and a second section 114 connected to the first section 113 and having a width greater than that of the first section 113 . On top of that, the cable passing plate 13 has an assembly section 131 disposed in the first slot 111 , a limit section 132 connected to the assembly section 131 and disposed in the second slot 112 , and a limit section 132 connected by the assembly section 131 is not connected to the line segment 133 extending from one side of the limiting segment 132 . The limiting section 132 includes a pair of necks 134 corresponding to the first section 113 of the second groove 112 , and a neck 134 disposed in the second section 114 of the second groove 112 and received by the second groove 112 The head 135 of the first segment 113 is restrained. In addition, the thread-passing segment 133 is formed with a plurality of thread-passing holes 136 which can respectively provide the yarns to pass through. In one embodiment, the acupuncture body 11 is made of a first material, and the wire passage plate 13 is made of a second material different from the first material. For example, the first material is metal, and the second material is ceramic. On the other hand, the pressing plate 14 is mounted on the side of the acupuncture body 11 where the second groove 112 is formed, and the pressing plate 14 at least presses the limiting section 132 of the cable passing plate 13 . In one embodiment, the second slot 112 is tapered, and the head 135 is disposed at the widest part of the second slot 112 .

As mentioned above, the sewing machine needle 10 is initially assembled. First, the thread passage plate 13 is assembled with the needle holder body 11. The assembly section 131 of the thread passage plate 13 is snapped into the first groove 111. The thread passage plate 13 The limiting section 132 of the first position is placed in the second groove 112 , and the head 135 of the limiting section 132 is restricted by the structure of the second groove 112 , so that the wire-passing board 13 obtains the first-stage positioning. After that, the pressing plate 14 is set corresponding to the side of the sewing machine needle 10 that does not face the yarn, and at least the limiting section 132 of the thread-passing plate 13 is pressed, so that the thread-passing plate 13 obtains the second stage positioning. In this way, the thread-passing plate 13 which is not the original structure of the needle tumbler body 11 can be restrained by the structure of the second groove 112 and the pressing plate 14 at the same time during sewing, and will not occur during the sewing process. fall off. In addition, the present invention makes the wiring board 13 easily replaceable through this design.

3 and FIG. 5, in one embodiment, the pressing plate 14 is placed in the second groove 112, and the second groove 112 further extends from the second section 114 and provides the pressing plate 14 therein. 115 of the third paragraph. It should be understood that in this embodiment, the pressing plate 14 is not only disposed in the third section 115 of the second groove 112, but also disposed in the second section 114 of the second groove 112, so that the second section 114 of the second groove 112 The head 135 is compressed within the segment 114 . Furthermore, the acupuncture body 11 may further have a mounting hole 116 disposed in the third section 115 of the second groove 112 and provided with a pressure plate assembly 15. The pressure plate assembly 15 may be a screw. In addition, in one embodiment, the pressing plate 14 includes a mounting portion 141 located in the second slot 112 and a pressing portion 142 connected to the mounting portion 141 and pressing the limiting section 132 of the cable passing plate 13 . The pressing The portion 142 and the mounting portion 141 are located at different levels, as depicted in FIGS. 3 and 7 .

Referring back to FIG. 7 , in one embodiment, the needle body 11 has a plurality of sewing needle mounting holes 117 located in the first groove 111 , and the thread passage plate 13 has at least a pair of passages corresponding to the sewing needle mounting holes 117 . The needle hole 137 , the sewing needle mounting hole 117 has a first extension line 118 , and each of the thread-passing holes 137 has a second extension line 138 staggered with the first extension line 118 .

The above is only a preferred embodiment of the present invention, and should not limit the scope of implementation of the present invention, that is, all equivalent changes and modifications made according to the scope of the patent application of the present invention should still fall within the scope of the patent of the present invention.

10: Sewing machine needle 11: Acupuncture body 111: The first slot 112: Second slot 113: First paragraph 114: Second paragraph 115: Third paragraph 116: Mounting holes 117: Mounting hole for sewing needle 118: The first extension line 13: Over-the-wire board 131: Assembly segment 132: Limit segment 133: over line 134: Neck 135: Head 136: Cable hole 137: Through pinhole 138: Second extension line 14: Platen 141: Installation Department 142: Press Department 15: Platen assembly 20: sewing needle 21: Needle drive rod 22: sewing machine presser foot

FIG. 1 is a schematic view of the implementation of an embodiment of the present invention installed on a sewing machine. FIG. 2 is a schematic structural diagram of a sewing machine needle upholstery according to an embodiment of the present invention. FIG. 3 is an exploded schematic view of the structure of a sewing machine needle upholstery according to an embodiment of the present invention. FIG. 4 is an exploded schematic view of another angle structure of a sewing machine needle upholstery according to an embodiment of the present invention. FIG. 5 is a schematic side view of the structure of the acupuncture body according to an embodiment of the present invention. FIG. 6 is a schematic view of the bottom view of the needle quilt of a sewing machine according to an embodiment of the present invention. FIG. 7 is a schematic cross-sectional view of the structure of a sewing machine needle upholstery according to an embodiment of the present invention.

10: Sewing machine needle

11: Acupuncture body

111: The first slot

112: Second slot

13: Over-the-wire board

14: Platen

15: Platen assembly

20: sewing needle

Claims (10)

A sewing machine needle tumbler with a replaceable thread-passing plate, comprising: a tumbler body with a first groove set at one end, and a tumbler body on one side that does not face at least one yarn and is connected to the first slot. A second slot communicated with the slot, the second slot includes a first segment connected to the first slot and a second segment connected to the first segment and having a width greater than the first segment; a wiring board with a set The assembly section in the first slot, a limit section connected to the assembly section and arranged in the second slot, and a pass extending from the side of the assembly section not connected to the limit section and formed with a plurality of wire holes. a line segment, the limiting segment comprises a pair of necks arranged in the first segment and a head arranged in the second segment and restricted by the first segment of the second groove; and a pressing plate mounted on the needle One side of the tweezer body is provided with the second groove, and at least presses the limiting section of the wire-passing plate. The sewing machine needle with replaceable thread guide plate as claimed in claim 1, wherein the pressure plate is placed in the second groove, the second groove has a third groove extending from the second section and providing the pressure plate disposed therein part. The sewing machine needle tumbler with a replaceable thread-passing plate as claimed in claim 2, wherein the tumbler body has a mounting hole disposed in the third section of the second groove and provided with a platen assembly. The sewing machine needle caster with a replaceable thread guide plate according to any one of claims 1 to 3, wherein the needle caster body has a plurality of sewing needle mounting holes located in the first groove, and the thread guide plate has at least one pair of sewing needle mounting holes. The sewing needle mounting holes have a first extension line, each of which has a second extension line that can intersect with the first extension line. The sewing machine needle with replaceable thread guide plate according to any one of claims 1 to 3, wherein the second groove is a tapered shape, and the head is arranged at the widest part of the second groove. The sewing machine needle trowel with a replaceable thread guide plate according to any one of claims 1 to 3, wherein the needle trowel body is made of a first material, and the thread guide plate is made of a different material from the first material. It is made of a second material, the first material is metal, and the second material is ceramic. The sewing machine needle with a replaceable thread-passing plate according to any one of claims 1 to 3, wherein the pressing plate comprises a mounting portion located in the second groove and a connecting portion connected to the mounting portion and pressing the thread-passing plate The pressing part of the limiting section, the pressing part and the mounting part are located on different horizontal planes. The sewing machine needle tool with a replaceable thread guide plate as claimed in claim 7, wherein the needle tool body has a plurality of sewing needle mounting holes located in the first groove, and the thread guide plate has at least one pair of sewing needles for mounting The needle-passing hole of the hole, the sewing needle installation hole has a first extension line, and each of the thread-passing holes has a second extension line that can be staggered with the first extension line. The sewing machine needle with replaceable thread guide plate as claimed in claim 7, wherein the second groove is in a tapered shape, and the head is arranged at the widest part of the second groove. The sewing machine needle trowel with replaceable thread guide plate as claimed in claim 7, wherein the needle trowel body is made of a first material, and the thread guide plate is made of a second material different from the first material The first material is metal, and the second material is ceramic.

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