CN204780203U - Sewing machine with go up ornamental thread cutters and last group traditional thread binding putting - Google Patents

Abstract

A sewing machine with an upper decorative thread cutter device and an upper thread removal device, comprising a sewing machine body, an upper decorative thread cutter device and an upper thread removal device. Wherein, the sewing machine body includes a sewing machine arm, a bur for threading a needle thread respectively, an upper decorative thread guide installed on the sewing machine arm and guiding the upper decorative thread, and an upper decorative thread installed on the sewing machine arm and pulling the upper decorative thread. The upper decorative thread looper, wherein the upper decorative thread guide part and the upper decorative thread looper are separately set up and down to form a slit. The upper decorative thread cutter device is installed on the sewing machine body and can cut and clamp the upper decorative thread. The upper thread pulling device is installed on the sewing machine body and can carry out a reciprocating thread hook stroke through the slit relative to the sewing machine body to clamp the needle thread. The utility model has a reasonable design, so that the upper thread pulling device can still complete the clamping of the needle thread by passing through the slit in a limited space.

Description

Sewing machine with upper decorative thread cutter device and upper thread removal device

technical field

The utility model relates to a sewing machine, in particular to a sewing machine which is equipped with an upper decorative thread cutter device and an upper thread pulling device at the same time.

Background technique

At present, the operation process of the sewing machine will first complete the threading of the suture, and then press the cloth or clothing to be sewed with the presser foot, and finally use the needle to perform the sewing operation. Wherein, when wanting to suspend the sewing operation and take off the cloth or clothing, the upper decorative thread remaining on the cloth or clothing must be cut off, so that the cloth or clothing can be further taken off. However, in the process of cutting the upper trim in the early days, the operator had to pull out the seam with bare hands, and at the same time pull out the seam and reserve a section of seam for the convenience of the next sewing operation, and finally use scissors to pull out the seam. Sutures cut. However, the thread ends after cutting will stay near the sewing needle and appear messy. At the same time, the operator needs to pay special attention to the position of these thread ends during the next sewing operation, so as not to be disturbed by these thread ends in the next sewing operation and cause twisting. line situation. In view of the inconvenience of the next sewing operation caused by the above-mentioned reserved line segment, some operators have developed a more convenient thread cutting device.

For example, the thread hooking device of the sewing machine of Taiwan Patent No. 286691 mainly includes an electromagnetic assembly, a main swing arm and a thread hooking part. When the electromagnetic component is in the conduction state, the electromagnetic component will indirectly pull the main swing arm to make the thread hooking part stretch out, and hook back the multiple threads pulled by the multiple sewing machine needles inward. , and finally these lines will be hooked between the gaps of the reeds at the front end of the hooking portion. Simultaneously, the lines drawn by the burs are cut off by the thread cutter.

Furthermore, as the sewing machine with the upper side decorative seam mechanism of the Chinese Taiwan Patent Invention Patent No. I414659, it mainly includes an upper side decorative thread hook, an upper side decorative thread guide, and one by the upper side decorative thread hook and The upper decorative thread guided by the upper decorative thread guide and an upper decorative thread cutting device. Wherein, the upper decorative thread cutting device includes a movable knife, a fixed knife, a thread end holding spring and a thread holding auxiliary spring. Accordingly, the upper decorative thread cutting device cuts the part of the drawn upper decorative thread with the movable knife and the fixed knife, and at the same time holds the spring with the thread end of the cut upper decorative thread. Hold the auxiliary spring clamp with the wire.

Known by above-mentioned prior art, although the sewing machine of the No. 286691 patent case has the thread hooking device for thread hooking, it does not use the upper decorative thread in the sewing operation. Furthermore, although the sewing machine of the No. I414659 patent case adopts the upper decoration thread in the sewing operation and has the upper side decoration thread cutting device, it does not adopt the hook thread device for hook thread. In other words, currently there is no product in the sewing industry that simultaneously sets the thread hooking device and the upper decorative thread cutting device on the sewing machine. Further, the case of the No. I414659 patent is provided with the upper decorative thread hook, the upper decorative thread guide and the upper decorative thread cutting device around the bur, so it cannot be used in the limited space around the bur. The wire hooking device for hooking wire of the No. 286691 patent case is additionally set. Therefore how to design a sewing machine that can be provided with the hook thread device and the upper side decorative thread cutting device obviously has become a problem to be solved.

Utility model content

The main purpose of the utility model is to solve the problem that the thread hooking device and the upper decorative thread cutting device cannot be installed at the same time on the conventional sewing machine.

In order to achieve the above purpose, the utility model provides a sewing machine with an upper decorative thread cutter device and an upper thread removal device, which includes a sewing machine body, an upper decorative thread cutter device and an upper thread removal device. The sewing machine body includes a sewing machine arm, a needle frame that is installed on the sewing machine arm and can carry out a reciprocating sewing stroke relative to the sewing machine arm, and a needle that is installed on the needle frame and respectively threaded with needle threads, is installed on the sewing machine arm and An upper decorative thread guide that guides the upper decorative thread, and an upper decorative thread looper that is installed on the sewing machine arm and performs a reciprocating deflection stroke relative to the sewing machine arm to pull the upper decorative thread between the needles, wherein the upper decorative thread The thread guide and the upper decorative thread looper are separated up and down to form a slit; it also includes an upper decorative thread cutter device installed on the sewing machine body, the upper decorative thread cutter device includes a fixed thread cutting device, and the upper decorative thread cutter device The decorative thread is hooked to the movable thread cutting part of the fixed thread cutting part, and the movable thread cutting part is staggered relative to the fixed thread cutting part to cut off the upper decorative thread; it also includes an upper thread removal device installed on the sewing machine body, and the upper thread removal device is opposite to the sewing machine The main body carries out the reciprocating hooking stroke of the shuttle slit to clamp the needle thread. The upper thread pulling device includes a hooking part for hooking the needle thread, and a clamping part arranged on the hooking part and clamping the needle thread with the hooking part .

In the sewing machine capable of adjusting the stretching amount of the thread segment described in the utility model, the upper decorative thread guide includes a mounting part which is mounted on the arm of the sewing machine and can be adjusted in height relative to the arm of the sewing machine. A bending portion bent at an angle relative to the mounting portion, and a guiding portion connecting the bending portion and guiding the upper trim line.

In the sewing machine capable of adjusting the stretching amount of the line segment described in the utility model, the upper decorative thread looper includes an installation part, is connected to the installation part and is bent at an angle relative to the installation part and is arc-shaped. The bending part and the pulling part which is arranged on the other side of the arc-shaped bending part and pulls the upper decorative line are arranged opposite to the installation part.

In the sewing machine capable of adjusting the stretching amount of the line segment described in the utility model, the bending part, the guiding part and the curved bending part form a slit.

In the sewing machine capable of adjusting the stretching amount of the thread segment described in the utility model, the upper decorative thread cutter device includes a thread clamping part arranged on the other side of the movable thread cutting part relative to the fixed thread cutting part.

In the sewing machine capable of adjusting the stretching amount of the thread segment described in the utility model, the movable thread cutting part includes a first thread hooking part.

In the sewing machine capable of adjusting the stretching amount of the thread segment described in the utility model, the thread hooking member includes a second thread hooking part.

Compared with the existing sewing machines, the utility model has the following advantages: the utility model sets the upper decorative thread cutter device and the upper thread pulling device at the same time, and separates the upper decorative thread guide part and the upper decorative thread looper up and down. A slit is formed, so the upper thread removal device can still clamp the needle and thread by passing through the slit in a limited space.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of a sewing machine with an upper decorative thread cutter device and an upper thread removal device according to the present invention.

Fig. 2 is a schematic diagram (1) of the partial appearance of the sewing machine with the upper decorative thread cutter device and the upper thread removal device of the present invention.

Fig. 3 is a partial appearance schematic diagram (2) of the sewing machine with the upper decorative thread cutter device and the upper thread removal device of the present invention.

Fig. 4 is a partial appearance schematic diagram (3) of the sewing machine with the upper decorative thread cutter device and the upper thread removal device of the present invention.

Fig. 5 is a schematic diagram (1) of the operation of the decorative thread cutter device of the present invention.

Fig. 6 is a schematic diagram (2) of the operation of the decorative thread cutter device of the present invention.

Fig. 7 is a schematic diagram (3) of the operation of the decorative thread cutter device of the present invention.

Fig. 8 is a schematic diagram (1) of the operation of the upper wire pulling device of the present invention.

Fig. 9 is a schematic diagram (2) of the operation of the upper wire pulling device of the present invention.

Fig. 10 is a schematic diagram of the operation of the upper wire pulling device of the present invention (3).

Explanation of schematic symbols:

1. Sewing machine body; 11. Sewing machine arm; 12. Needle holder; 13. Burs; 14. Upper decorative thread guide; 141. Installation part; 142. Bending part; 143. Guide part; 144. Bolt ; 15, upper decorative thread looper; 151, installation part; 152, arc bending part; 153, traction part; 16, first driving device; 17, second driving device; 171, electromagnet driving part; 172, Connecting rod group; 173, connecting parts; 2, upper decorative thread cutter device; 21, fixed thread cutting part; 22, movable thread cutting part; 221, first hook thread part; 23, thread clamping part; Device; 31 thread hook; 311, second thread hook; 32, clamp; 4, needle thread; 5, upper decorative thread; 6, slit.

Detailed ways

Relevant detailed description and technical content of the utility model, now just explain as follows with respect to coordinating drawing:

Please refer to FIG. 1 to FIG. 5 , the utility model is a sewing machine with an upper decorative thread cutter device and an upper thread removal device, including a sewing machine body 1 , an upper decorative thread cutter device 2 and an upper thread removal device 3 . Specifically, the sewing machine body 1 includes a sewing machine arm 11, a needle frame 12 mounted on the sewing machine arm 11, a needle 13 mounted on the needle frame 12 and respectively threaded with needle thread 4, mounted on the sewing machine arm 11 The upper decorative thread guide 14 for guiding the upper decorative thread 5 and the upper decorative thread looper 15 installed on the arm 11 of the sewing machine and used for pulling the upper decorative thread 5 . Wherein, the needle frame 12 is driven by a drive shaft (not shown in the figure) to perform a reciprocating sewing stroke relative to the arm 11 of the sewing machine.

Further, please refer to FIG. 4 again, the upper decorative thread guide 14 includes a mounting portion 141 mounted on the arm 11 of the sewing machine, a bending portion 142 connected to the mounting portion 141 and bent relative to the mounting portion 141 at an angle, And the guide part 143 that connects the bent part 142 and guides the upper decorative line 5 . Wherein, the mounting portion 141 is locked on the sewing machine arm 11 through the bolt 144 , so the height adjustment relative to the sewing machine arm 11 can be performed only by loosening the bolt 144 . Furthermore, the upper decorative thread looper 15 is driven by the first driving device 16 installed on the sewing machine arm 11 to perform a reciprocating swing stroke relative to the sewing machine arm 11 to pull the upper decorative thread 5 between the needles 13, and the upper decorative thread The thread looper 15 includes an installation part 151 installed on the first driving device 16, an arc-shaped bending part 152 that is connected to the installation part 151 and bent at an angle relative to the installation part 151 and is arc-shaped, and an opposite installation part 152. The setting portion 151 is disposed on the other side of the arc-shaped bending portion 152 and pulls the pulling portion 153 of the upper decorative line 5 . In this embodiment, the upper decorative thread guide 14 and the upper decorative thread looper 15 are separated up and down to form the slit 6. In other words, the bending part 142, the guiding part 143 and the arc-shaped bending part 152 are jointly formed. Slit6.

Please refer to Fig. 2, Fig. 3 and Fig. 5 again. The upper decorative thread cutter device 2 is installed on the sewing machine body 1, and includes a fixed thread trimmer 21, a movable thread trimmer 22 that can move relative to the fixed thread trimmer 21, and a relatively fixed thread trimmer. The thread cutting element 21 is arranged on the thread clamping element 23 on the other side of the movable thread cutting element 22 . Wherein, the movable thread cutting member 22 includes a first thread hooking portion 221 , as shown in FIG. 5 and FIG. 6 . Furthermore, the upper thread removal device 3 is installed on the sewing machine body 1 and is driven by the second driving device 17 so as to carry out the reciprocating thread hooking stroke of the shuttle slit 6 relative to the sewing machine body 1. A thread hooking member 31 and a clamping member 32 arranged on the thread hooking member 31 and clamping the needle thread 4 with the thread hooking member 31 . Wherein, the hooking element 31 includes a second hooking portion 311 . And the second driving device comprises electromagnet driving part 171, is driven by electromagnet driving part 171 and swings the connecting rod group 172, and connects with connecting rod group 172 and sewing machine body 1 assembly and connects and sets up the wire pulling device 3 Attachment 173.

Please refer to Fig. 6 to Fig. 10, when the needle frame 12 stops to perform the reciprocating sewing stroke and the needle thread 4 is cut off by the thread cutting device (not shown in the figure), only the movable thread cutting member 22 needs to be driven to move toward the upper decorative thread 5, and the active thread cutting The first thread hook part 221 of the piece 22 will hook the upper decorative thread 5 when the movable thread cutting part 22 is reset and hook the upper decorative thread 5 to the fixed thread cutting part 21, and finally the movable thread cutting part 22 will intersect with the fixed thread cutting part 21 to cut off The upper decorative thread 5, and the thread clamping part 23 can also clamp the upper decorative thread 5 at the same time. Furthermore, it is only necessary to drive the electromagnet driving part 171 of the second driving device to link the connecting rod group 172 to make the connecting rod group 172 perform a swinging motion, and at the same time, the connecting rod group 172 will drive the connecting part 173 to make the connecting part 173 performs linear motion and swinging motion in sequence so that the upper thread pulling device 3 shuttles through the slit 6, and finally the second thread hooking part 311 of the thread hooking member 31 will hook the needle thread 4 when the upper thread pulling device 3 is reset and hold it together. The piece 32 holds the needle thread 4 . Therefore, the upper decorative thread cutter device 2 can effectively fix the segment end of the upper decorative thread 5 , and the upper thread removing device 3 can also effectively fix the segment end of the needle thread 4 .

To sum up, the utility model is a sewing machine with an upper decorative thread cutter device and an upper thread removal device, including a sewing machine body, an upper decorative thread cutter device and an upper thread removal device. Wherein, the sewing machine body includes a sewing machine arm, a bur for threading the needle thread, an upper decorative thread guide installed on the sewing machine arm and guiding the upper decorative thread, and an upper decorative thread installed on the sewing machine arm and pulling the upper decorative thread. The upper decorative thread looper, wherein the upper decorative thread guide and the upper decorative thread looper are arranged vertically apart to form a slit. The upper decorative thread cutter device is installed on the sewing machine body and can cut and clamp the upper decorative thread. The upper thread pulling device is installed on the sewing machine body and can carry out a reciprocating thread hooking stroke through the slit relative to the sewing machine body to clamp the needle thread. Accordingly, the upper decorative thread cutter device and the upper thread pulling device can effectively fix the segment end of the upper decorative thread and the thread segment end of the needle thread respectively.

The utility model has been described in detail above, but the above is only one of the preferred embodiments of the utility model, and should not limit the scope of the utility model implementation with this, that is, all patent applications according to the utility model The equivalent changes and modifications made should still fall within the scope of the patent coverage of the present utility model.

Claims (8)

1. A sewing machine with an upper decorative thread cutter device and an upper thread removal device, characterized in that: It includes the body of the sewing machine, the arm of the sewing machine, the needle frame that is installed on the arm of the sewing machine and can perform a reciprocating sewing stroke relative to the arm of the sewing machine, the needles that are installed on the needle frame and pass through the needle thread respectively, and are installed on the The sewing machine arm guides the upper decorative thread guide, and the upper decorative thread looper is installed on the sewing machine arm and has a reciprocating deflection stroke relative to the sewing machine arm to pull the upper decorative thread between the needles , wherein the upper decorative thread guide and the upper decorative thread looper are separated up and down to form a slit; It also includes an upper decorative thread cutter device installed on the sewing machine body. The upper decorative thread cutter device includes a fixed thread cutter and a movable thread cutter that hooks the upper decorative thread to the fixed thread cutter. The movable thread cutter Interlaced relative to the fixed thread cutting parts to cut the upper decorative thread; it also includes an upper thread removal device installed on the sewing machine body, and the upper thread removal device performs a reciprocating hook thread stroke through the slit of the sewing machine body to clamp the needle thread. The above-mentioned thread pulling device includes a thread hooking part for hooking the needle thread, and a clamping part arranged on the thread hooking part and clamping the needle thread with the thread hooking part. 2. The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 1, characterized in that: the upper decorative thread guide includes a device mounted on the sewing machine arm and can be opposite to the sewing machine arm The mounting part for height adjustment, the bending part connecting the mounting part and bending relative to the mounting part at an angle, and the guide part connecting the bending part and guiding the upper trim line. 3. The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 2, characterized in that: the upper decorative thread looper includes a mounting part, a connecting mounting part and is opposite to each other at an angle. The installation part is bent and has an arc-shaped curved part, and the pulling part is arranged on the other side of the arc-shaped curved part relative to the installation part and pulls the upper decorative line. 4 . The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 3 , wherein the bending part, the guiding part and the arc-shaped bending part form a slit. 5. The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 1, 2, 3 or 4, characterized in that: the upper decorative thread cutter device includes a relatively fixed thread cutting member arranged on The clamping part on the other side of the active tangent part. 6 . The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 5 , wherein the movable thread cutter includes a first hooking portion. 6 . 7. The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 6, wherein the thread hooking member includes a second thread hooking part. 8 . The sewing machine with the upper decorative thread cutter device and the upper thread removal device according to claim 5 , wherein the thread hooking member includes a second thread hooking part. 9 .