TWM503424U - Sewing machine with upper thread cutter device and upper threading device - Google Patents

Description

Sewing machine with upper thread cutter device and upper threading device

The present invention relates to a sewing machine, and more particularly to a sewing machine in which an upper wire cutter device and an upper threading device are simultaneously installed.

At present, the sewing machine's working process first completes the sewing thread, and then presses the fabric or clothing to be stitched with the pressing cloth foot, and finally uses the bur to perform the sewing operation. Among them, when you want to stop the sewing work and take off the fabric or clothing, you must cut off the upper thread left on the fabric or clothing so that you can remove the fabric or clothing. However, in the early process of cutting the trimming line, the operator must pull the seam out by hand, and at the same time pull out the suture and reserve a stitch to facilitate the next sewing operation, and finally use the scissors to seam. The line is cut. However, the threaded ends will be left in the vicinity of the needles and appear messy. At the same time, the operator should pay special attention to the position of these thread heads in the next sewing operation so as not to be twisted by the thread heads in the next sewing operation. The situation of the line. In view of the above-mentioned reserved line segment, the problem of inconvenience in the next sewing operation is caused, and a manufacturer has developed a more convenient tangent device.

For example, the hook line device of the sewing machine of the Republic of China Patent No. 286691 mainly includes an electromagnetic component, a main swing arm and a hook line portion. When the electromagnetic component is in an energized state, the electromagnetic component indirectly pulls the main swing arm to extend the hook line outward, and hooks back the multiple lines drawn by the plurality of sewing machine needles in an inward direction. Finally, the lines are hooked between the crevices of the reed at the front end of the hook line. At the same time, the lines drawn by the burs are cut by all the wires.

Furthermore, the sewing machine having the upper decorative seam mechanism of the Republic of China Patent Patent No. I414659 mainly includes an upper decorative wire hook, an upper decorative wire guide, and an upper decorative wire hook and the upper decorative wire. The upper side decorative line guided by the guide and the upper side decorative line cutting device. Wherein, the upper decorative line cutting device comprises a movable knife, a fixed knife, a line end holding spring and a line holding auxiliary spring. According to this, the upper decorative line cutting device cuts the portion of the upper decorative line that is drawn close by the movable blade and the fixed blade, and at the same time holds the spring of the upper decorative line with the wire end. This line holds the auxiliary spring clamped.

It is known from the above prior art that the sewing machine of the '286 patent has the hooking device for the hook line, but it does not use the upper trim line in the sewing operation. Further, the sewing machine of the No. I414659 patent uses the upper trim line in the sewing operation and has the upper side trim line cutting device, but does not employ the hook line device for the hook line. In other words, at present, the sewing industry does not simultaneously provide the hook wire device and the product of the upper side trim wire cutting device on the sewing machine. Further, in the case of the patent No. I414659, the upper decorative wire hook, the upper decorative wire guide and the upper decorative wire cutting device are disposed around the needle, so that it cannot be additionally provided in a limited space around the needle. The hooking device for the hook wire of the patent No. 286691 is set. Therefore, how to design a sewing machine capable of simultaneously setting the hook line device and the upper side trim line cutting device has become a problem to be solved.

The main purpose of the present invention is to solve the problem that the conventional sewing machine cannot simultaneously provide the hooking device and the upper decorative wire cutting device.

In order to achieve the above object, the present invention provides a sewing machine having an upper trimming cutter device and an upper threading device, comprising a sewing machine body, an upper wire cutter device and an upper threading device. The sewing machine body comprises a sewing machine arm, a needle holder mounted on the sewing machine arm and performing a reciprocating sewing stroke with respect to the sewing machine arm, and a plurality of needles mounted on the needle holder and respectively threaded with a plurality of needles a top wire guide member mounted on the sewing machine arm and guiding an upper trim line, and a reciprocating yaw stroke mounted on the sewing machine arm to pull the upper arm relative to the sewing machine arm An upper trimming looper thread between the thimbles, wherein the upper trimming wire guide is spaced apart from the upper trimming looper to form a slit. The upper trimming cutter device is mounted on the sewing machine body, the upper trimming cutter device includes a fixed tangent member, and a hooking the upper trimming line to the fixed tangent member to cut off the fixed tangent member. Active tangent pieces. The upper threading device is mounted on the sewing machine body and has a reciprocating hook stroke for the slit relative to the sewing machine body to clamp the needle thread, the upper threading device includes a hook line for hooking the needle threads And a clamping member disposed on the hooking member and clamping the needle thread with the hooking member.

In an embodiment of the present invention, the upper trim guide comprises a mounting portion mounted on the arm of the sewing machine and adjustable in height relative to the arm of the sewing machine, and the mounting portion is connected to the mounting portion at an angle a bent portion bent, and a guiding portion connecting the bent portion and guiding the upper trim line.

In an embodiment of the present invention, the upper thread bending needle includes a mounting portion, an arc-shaped curved portion connecting the mounting portion and bent at an angle with respect to the mounting portion, and having an arc shape, and a relative The mounting portion is disposed on the other side of the curved curved portion and pulls the traction portion of the upper trim line.

In an embodiment of the present invention, the bent portion, the guiding portion and the curved curved portion form the slit.

In an embodiment of the present invention, the upper wire cutter device includes a wire clamping member disposed on the other side of the movable thread cutting member with respect to the fixed thread cutting member.

In an embodiment of the present invention, the movable tangential member includes a first hook line portion.

In an embodiment of the present invention, the hooking member includes a second hooking portion.

The sewing machine having the upper thread cutting knife device and the upper threading device has the following advantages as compared with the conventional sewing machine: 1. The creation is performed while the upper thread cutting knife device and the upper threading device are disposed. The trim guide and the upper trim loop are spaced apart to form the slit, so that the upper threading device can still hold the needle thread by passing through the slit in a limited space.

The detailed description and technical content of this creation are as follows:

Referring to FIG. 1 to FIG. 5-1, the present invention is a sewing machine having an upper trimming cutter device and an upper threading device, comprising a sewing machine body 1, an upper wire cutter device 2 and an upper threading device 3 . Specifically, the sewing machine body 1 includes a sewing machine arm 11 , a needle holder 12 mounted on the sewing machine arm 11 , a plurality of needles 13 mounted on the needle holder 12 and respectively threaded with a plurality of needle wires 4 , An upper trim guide 14 mounted on the sewing machine arm 11 for guiding an upper trim line 5, and an upper trim looper 15 mounted on the sewing machine arm 11 for pulling the upper trim 5 . The needle holder 12 is driven by a drive shaft (not shown) to perform a reciprocating sewing stroke with respect to the sewing machine arm 11.

Further, referring to FIG. 4 , the upper trim guide 14 includes a mounting portion 141 mounted on the sewing machine arm 11 , and is connected to the mounting portion 141 and bent at an angle relative to the mounting portion 141 . The bent portion 142 and a guiding portion 143 that connects the bent portion 142 and guides the upper trim line 5. The mounting portion 141 is locked to the sewing machine arm 11 by the two bolts 144. Therefore, the height of the sewing machine arm 11 can be adjusted only by loosening the two bolts 144. Further, the upper thread bending needle 15 is driven by a first driving device 16 mounted on the sewing machine arm 11 to perform a reciprocating yaw stroke with respect to the sewing machine arm 11 to pull the upper decorative wire 5 to the Between the burs 13 , the upper trimming looper 15 includes a mounting portion 151 mounted on the first driving device 16 , a connecting portion 151 , and is bent at an angle relative to the mounting portion 151 . An arcuate curved portion 152 and a pulling portion 153 disposed on the other side of the curved portion 152 and pulling the upper trim line 5 with respect to the mounting portion 151. In this embodiment, the upper trim guide 14 and the upper trim loop 15 are vertically spaced apart to form a slit 6, in other words, the bent portion 142, the guiding portion 143 and the arc The curved portion 152 collectively forms the slit 6.

Referring to FIG. 2, FIG. 3 and FIG. 5-1, the upper trimming cutter device 2 is mounted on the sewing machine body 1 and includes a fixed tangent member 21, a movable tangent movable relative to the fixed tangent member 21. The member 22 and a clamping member 23 disposed on the other side of the movable tangential member 22 with respect to the fixed tangential member 21. The active tangential member 22 includes a first hooking portion 221, as shown in FIGS. 5-1 and 5-2. Furthermore, the upper threading device 3 is mounted on the sewing machine body 1 and is subjected to a reciprocating hook stroke of the slit 6 with respect to the sewing machine body 1 by a second driving device 17, and the upper threading device 3 includes There is a hook member 31 for hooking the needle wires 4, and a holding member 32 which is disposed on the hook member 31 and clamps the needle wires 4 with the hook member 31. The hook member 31 includes a second hook portion 311. The second driving device 17 includes an electromagnet driving portion 171, a link group 172 that is oscillated by the electromagnet driving portion 171, and a connecting rod assembly 172 and the sewing machine body 1 The connecting member 173 of the upper threading device 3 is provided.

Referring to FIG. 5-1 to FIG. 6-3, when the needle holder 12 stops the reciprocating sewing process and the needle thread 4 is cut off by the line device (not shown), only the active tangential line needs to be driven at this time. The piece 22 moves toward the upper trim line 5, and the first hook line portion 221 of the movable thread cutting member 22 hooks the upper trim line 5 and hooks the upper trim line 5 to the fixed when the movable thread cutting member 22 is reset. The tangential member 21 is finally staggered with the fixed tangential member 21 to cut the upper garnish 5, and the nipper 23 can also clamp the upper garnish 5. Moreover, the electromagnet driving portion 171 of the second driving device 17 is only required to drive the link group 172 to perform the swinging movement of the connecting rod group 172, and the connecting rod group 172 drives the connecting member. 173, the connecting member 173 is sequentially linearly and oscillated to further move the upper threading device 3 through the slit 6. Finally, the second hooking portion 311 of the hooking member 31 is placed on the upper thread. When the device 3 is reset, the needle wires 4 are hooked and the needle wires 4 are clamped with the holding member 32. Therefore, the upper wire cutter device 2 can effectively fix the end of the line segment of the upper trim line 5, and the upper threading device 3 can also effectively fix the end of the line segment of the needle thread 4.

In summary, the present invention is a sewing machine having an upper trimming cutter device and an upper threading device, comprising a sewing machine body, an upper wire cutter device and an upper threading device. Wherein, the sewing machine body comprises a sewing machine arm, a plurality of needles for respectively sewing a plurality of needles, an upper thread guiding member mounted on the sewing machine arm and guiding an upper decorative thread, and a mounting machine on the sewing machine The arm pulls the upper trimmed looper of the upper trim line, wherein the upper trim guide is spaced apart from the upper loop bender to form a slit. The upper wire cutter device is mounted on the sewing machine body and can cut and hold the upper trim wire. The upper threading device is mounted on the sewing machine body and performs a reciprocating hook stroke with respect to the sewing machine body to shuttle the slits to clamp the needle threads. Accordingly, the upper wire cutter device and the upper wire device can respectively fix the end of the line segment of the upper trim line and the end of the line segment of the needle thread.

The above description has been made in detail, but the above is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the creation of the creation, that is, the equality of the patent application scope according to the present creation. Changes and modifications are still covered by the patents of this creation.

1‧‧‧Sewing machine body
11‧‧‧Sewing machine arm
12‧‧‧ needle holder
13‧‧‧ burs
14‧‧‧Upper line guide
141‧‧‧Installation Department
142‧‧‧Bend
143‧‧‧Guidance
144‧‧‧ bolt
15‧‧‧Upper line curved needle
151‧‧‧Installation Department
152‧‧‧ curved bend
153‧‧‧ traction department
16‧‧‧First drive
17‧‧‧Second drive
171‧‧‧Electromagnetic drive unit
172‧‧‧ linkage group
173‧‧‧Connected parts
2‧‧‧Upper line cutter device
21‧‧‧Fixed tangential parts
22‧‧‧ activities tangent
221‧‧‧First hook line
23‧‧‧Clamping parts
3‧‧‧Upline device
31‧‧‧Hook wire
311‧‧‧Second hook line
32‧‧‧Clamping parts
4‧‧‧ Needle thread
5‧‧‧Upper line
6‧‧‧Slit

Fig. 1 is a schematic view showing the appearance of a sewing machine having an upper thread cutting knife device and an upper threading device. Fig. 2 is a partial perspective view (1) of the sewing machine of the present invention having an upper trimming cutter device and an upper threading device. Fig. 3 is a partial perspective view (2) of the sewing machine having the upper trimming cutter device and the upper threading device. Fig. 4 is a partial perspective view (3) of the sewing machine having the upper trimming cutter device and the upper threading device. Figure 5-1 is a schematic diagram of the actuation of the wire cutter device (1). Figure 5-2 is a schematic diagram of the operation of the wire cutter device (2). Figure 5-3 is a schematic diagram of the operation of the wire cutter device (3). Figure 6-1 is a schematic diagram of the operation of the dialing device on this creation (1). Figure 6-2 is a schematic diagram of the operation of the dialing device in this creation (2). Figure 6-3 is a schematic diagram of the operation of the dialing device in this creation (3).

1‧‧‧Sewing machine body

11‧‧‧Sewing machine arm

2‧‧‧Upper line cutter device

3‧‧‧Upline device

Claims (8)

A sewing machine having an upper trimming cutter device and an upper threading device, comprising: a sewing machine body comprising a sewing machine arm, a mounting machine arm and a reciprocating sewing stroke relative to the sewing machine arm a needle holder, a plurality of needles mounted on the needle holder and respectively threaded with a plurality of needles, an upper thread guide member mounted on the sewing machine arm and guiding an upper trim line, and a mounting machine mounted on the sewing machine The arm has a reciprocating yaw stroke relative to the sewing machine arm to pull the upper trim line to the upper trim line looper between the burs, wherein the upper trim guide and the upper trim bender a slit is formed on the upper and lower sides to form a slit; an upper wire cutter device is mounted on the sewing machine body, the upper wire cutter device includes a fixed tangent piece, and a upper trim line is hooked to the fixed tangent piece a movable tangential member for cutting the fixed tangential member; and an upper threading device mounted on the sewing machine body and performing a reciprocating hook stroke for the slit relative to the sewing machine body to clamp the needle thread On the Wire means includes a hooking the plurality of needle hook-line member, and a hook disposed on the wire holding member and the plurality of needle holding member and the hook-line member. A sewing machine having an upper trimming cutter device and an upper threading device according to claim 1, wherein the upper thread guide member comprises a mounting arm of the sewing machine and capable of height adjustment relative to the sewing machine arm. The mounting portion is a bent portion that connects the mounting portion and is bent at an angle with respect to the mounting portion, and a guiding portion that connects the bent portion and guides the upper trim line. The sewing machine of the present invention as claimed in claim 2, wherein the upper threaded looper comprises a mounting portion, and the mounting portion is coupled to the mounting portion at an angle a curved and curved curved portion, and a traction portion disposed on the other side of the curved portion opposite to the mounting portion and pulling the upper trim line. A sewing machine having an upper trimming cutter device and an upper threading device according to claim 3, wherein the bent portion, the guiding portion and the curved bent portion form the slit. A sewing machine having an upper trimming cutter device and an upper threading device according to any one of claims 1 to 4, wherein the upper trimming cutter device comprises a movable tangent member disposed opposite to the fixed tangent member Side clamps. A sewing machine having an upper trimming cutter device and an upper threading device as claimed in claim 5, wherein the movable thread cutting member comprises a first hooking portion. A sewing machine having an upper trimming cutter device and an upper threading device according to claim 6, wherein the hooking member includes a second hooking portion. A sewing machine having an upper trimming cutter device and an upper threading device according to claim 5, wherein the hooking member includes a second hooking portion.