TWI660085B - Stitching method and device? for upper net threads of sewing machine without missing thread at the beginging - Google Patents

Abstract

The invention relates to a device and method for preventing the leakage of the Internet cable of a sewing machine. The device and method respectively clamp the Internet cable and the sewing thread on the opposite side of the lead frame. At the starting point of the sewing machine, the Internet cable is connected by a wire. The line segment passing between the first and second burs is located below the line where the first stitch passes from the first bur to the pinch point, and the internet cable and the first stitch are projected When it reaches a horizontal reference plane, an angle is formed between each other. 俾 When the sewing machine starts sewing, the first sewing thread can surely press the Internet cable to smoothly connect the network, so that the Internet cable will not leak when the sewing machine starts sewing. Occurred, and the purpose of sewing the net by the internet cable can be successfully achieved.

Description

Apparatus and method for preventing leakage of net wire in sewing machine

The invention relates to a device and method for preventing leakage of the Internet cable during sewing of the sewing machine, and particularly to an innovative device and method that can surely prevent the leakage of the Internet cable during the sewing and prevent the Internet cable from forming a net.

Please refer to China's TW I272326 invention patent case, which is the invention patent case filed by the inventor of the case to the June Bureau and approved on February 15, 2006. The invention patent case relates to a method for sewing a net wire of a sewing machine without leaking the thread. The method mainly uses the thread that passes through the first needle to be accurately hooked and clamped, so as to achieve that the wire can actually suppress the net wire. , So that when the sewing machine starts sewing, there will be no leakage of thread, and the purpose of sewing the net smoothly; that is, the distance of the hook thread clamping group to move the hook thread is limited to the corresponding first needle, Make it only clamp the suture passing through the first bur to make sure Ensure that the hook thread clamping group can surely clamp the suture, so that when the sewing machine starts sewing, the suture can surely suppress the Internet cable, so that the Internet cable will not leak.

However, after the actual operation of the above-mentioned technology, stitches may still leak. This is because the hook clamp group is set on the same side of the lead frame, causing the first seam to pass through the first stitch. In the case where the angle between the thread and the cable passing through the wire frame is too small and almost parallel, when the first stitch of the sewing machine goes from the top start point to the bottom start point and back to the top stitch point, the first The line segment of the suture from the pinhole of the first bur to the hook thread clamping group is in a floating state, and the internet cable is being guided by the curved hook at the same time. The situation caused the first suture to not actually press the Internet cable, resulting in the Internet cable failing to catch on the hook of the upper stitch, forming a leaky thread, and when the first stitch looped and skipped, the second stitch After the sewing operation after the cycle, the network cable cannot be smoothly netted to form a predetermined stitch, resulting in the occurrence of defective sewing products.

Today, the inventor is in view of the fact that the above method still cannot effectively prevent the Internet cable from leaking. Therefore, in line with the spirit and philosophy of seeking a better one, the inventor has developed a first suture that can actually press the Internet cable and make the Internet cable When the sewing machine starts sewing, the wire can be hooked on the hook of the upper needle under the guidance of the lead frame, so that no thread leakage will occur, and the purpose of sewing and netting can be achieved smoothly.

The main purpose of the present invention is to provide a device and method for preventing the leakage of the sewing machine's Internet cable. The main purpose of the invention is to change the position of the clamp sewing thread, so that the sewing machine can actually press the Internet cable when the sewing machine starts sewing. The internet cable is successfully connected without leaking.

The purpose and effect of the present invention are achieved by the following technology: a device for starting and not leaking a wire of a sewing machine, including a needle post, the needle post assembly extending downwards and arranged in a horizontal and sequential order from right to left A plurality of burs, the burs include at least a first bur and a second bur, the first bur and the second bur are respectively threaded with a first stitch and a second stitch; A lead frame is installed adjacent to the right side of the first needle, and the lead frame passes through an internet cable; an upper shuttle needle is provided below the lead frame, and the upper shuttle needle is corresponding to the lead frame and The needle posts are displaced in an arc path; a first thread clamp is installed on the left side of the first bur so as not to hinder the up and down movement of the needle posts, and is located on the lead frame. On the opposite side to clamp at least the first suture; a second clamp is installed above the first clamp; the second clamp is used to clamp the Internet Thread; when the first suture is the first clip clamp and the internet cable is the second clip clamp When the Internet cable passes through the lead frame and extends through the first bur to the second bur, it is a first line segment, and the first suture passes through the first A second line segment is formed after the needle hole of the bur is clamped by the first thread clamp, and the first line segment and the second line segment form an included angle θ when projected onto a horizontal reference plane. , And the first suture crosses above the internet cable.

The above-mentioned device for preventing the thread from leaking on the net of the sewing machine as described above, further comprising a stitch guide assembly provided on the right side of the first bur for guiding the first stitch to The first clamp is clamped and fixed by the first clamp.

The above-mentioned device for starting and not leaking a wire of a sewing machine, wherein the suture guiding component is a blower, and the output airflow blows at least the first suture to the first thread clamp. Is clamped by the first clamp.

A method of sewing a net wire of a sewing machine and not leaking the thread. Before the stitch of the sewing machine is started, a net wire and a first suture are respectively clamped near the ends, and the first suture is passed through by itself. A second segment is from the pinhole of a first bur to the clamped portion, and the internet cable extends from passing through a lead frame to passing between the first bur and the second bur It is a first line segment. When projected onto a horizontal reference plane, the first line segment and the second line segment cross each other to form an included angle θ, and the first stitch line crosses above the Internet line.

As described above, the method of sewing a net wire of a sewing machine without leaking the thread, wherein before the sewing machine lowers the needle, the first stitch passing through the needle hole of the first needle is guided by an external force. Cause its ends to be clamped.

As described above, the method of sewing a net wire of a sewing machine without leaking the thread, wherein the external force is a wind force generated by a blower pipe.

A method for starting and not leaking a net of a sewing machine includes the following steps: Step 1: a first bur and a second bur are located at an upper starting point, and a net is passed through a lead frame on the right side of the first bur and The end clip is fixed on the left side of the first bur, and the Internet cable is further correspondingly projected to a first through the first bur and the second bur after passing through the lead frame. The gap between them when they are horizontal; Step 2: the first suture passing through the first bur is guided to the left side of the first bur and clamped by external force, so that the first suture is staggered and traversed from above the internet cable; Step 3: When the first bur starts to move from the upper starting point to the lower starting point, the first stitching thread presses down the Internet cable and interweaves with the bottom thread, and the Internet cable is picked by a thread take-up device. Move from the rear end to the front end of the lead frame, and at the same time an upper shuttle executes an arc path and moves from the left start point to the right end point; step four: when the first bur starts to move from the lower start point to the upper start point The internet cable corresponds to the hook portion that falls into the upper shuttle needle. At this time, the upper shuttle needle follows the arc-shaped path and moves from the right end point to the left start point and hooks the internet cable.

The method for starting and not leaking a net wire of a sewing machine as described above, wherein the external force in step 2 uses an air blower to generate airflow to guide the first suture passing through the pinhole of the first needle The left side of the first bur is clamped and fixed.

Advantages of the present invention: In the present invention, the internet cable and the suture are clamped on the opposite sides of the lead frame respectively, and the first suture crosses the internet cable, while the internet cable and the first suture are projected on a horizontal reference plane to each other. An angle is formed between them and they are staggered. Therefore, when the sewing machine starts to sew, the first suture can be surely pressed through the wire segment of the lead frame located between the first and second burs, so that the internet seg A bur is a fulcrum, which is helpful for guiding displacement in the arc slot of the lead frame, and when the upper needle moves to the right end point, the Internet cable can be hooked on the upper shuttle The hook portion of the needle prevents the leakage of the thread when the Internet cable is sewn, and the effect of sewing the net by the Internet cable can be smoothly achieved.

(1) ‧‧‧Needle

(11) ‧‧‧First bur

(12) ‧‧‧Second bur

(13) ‧‧‧Third bur

(14) ‧‧‧First suture

(15) ‧‧‧Second suture

(16) ‧‧‧The third suture

(2) ‧‧‧ lead frame

(21) ‧‧‧arc slot

(22) ‧‧‧Internet cable

(3) ‧‧‧ Upper shuttle needle

(31) ‧‧‧Hook

(4) ‧‧‧The first thread clamp

(5) ‧‧‧Second clamp

(6) ‧‧‧Thread take-up device

(7) ‧‧‧Suture guide assembly

(8) ‧‧‧ Shuttle thread device

(81) ‧‧‧ bottom line

First figure: Schematic perspective view of the device for sewing and not leaking the net wire of the sewing machine of the present invention when it is not seamed

Second figure: The perspective view of the device for starting and not leaking the stitches of the Internet cable of the sewing machine of the present invention blows the first, second, and third stitches to the first thread clamp with air flow.

Third picture: The device for starting and not leaking the seam of the sewing line of the sewing machine of the present invention blows the first, second, and third stitches to the first clamp by airflow, and the first, second, and third stitches are the first clamp Schematic illustration of the cable clamp

Fig. 4: Three-dimensional schematic view of the state of the device for preventing the thread from leaking when the net wire of the sewing machine of the present invention is being sewn (1)

Fifth figure: The three-dimensional schematic diagram of the state of the device for preventing the leakage of the net thread during the sewing of the sewing machine of the present invention (two)

Figure 6: The three-dimensional schematic diagram of the state of the device for preventing the leakage of the netting device during the sewing process of the Internet cable of the sewing machine of the present invention (3)

Fig. 7: The three-dimensional schematic diagram of the state of the device for preventing the leakage of the netting device of the Internet cable of the sewing machine of the present invention at the time of starting the sewing (four)

Figure 8: Top view of Figure 4

Figure 9: Top view of Figure 5

In order to make the technical content, the purpose of the invention, and the effect achieved by the present invention more complete and clear disclosure, it is described in detail below, and please also refer to the disclosed drawings and numbers: please refer to the first Illustration.

The device for sewing and not leaking the Internet cable of the sewing machine of the present invention includes a needle post (1), a lead frame (2), a shuttle needle (3), a first thread clamp (4), and a first Two thread clamps (5); of which: the needle post (1) is assembled with a first bur (11) and a second bur (12) which extend downward and are arranged in a horizontal and sequential manner from right to left. ), The third bur (13), the first bur (11) is provided with a first suture (14), the second bur (12) is provided with a second suture (15), and the third bur (13) A third suture (16) is provided; and at least two burs are provided on the needle post (1). The number of burs is different according to different sewing requirements. For example, two burs can be provided. Needle or three burs or four burs; in this embodiment, three burs are provided as an example; the lead frame (2) is installed adjacent to the outer side of the first bur (11), especially refers to the On the right side of the first bur (11), the lead frame (2) has an arc-shaped slot (21), and the arc-shaped slot (21) is arranged along the front and rear directions. ) An internet cable (22) is passed through the arc-shaped slot (21), With the operation of the sewing machine, the internet cable (22) moves from the first position W1 at the rear end of the arc slot (21) to the second position W2 at the front end of the arc slot (21), and then back from the second position W2 To the first position W1; and the movement of the Internet cable (22) in the first position W1 and the second position W2 in the arc-shaped slot (21) is changed by different positions of the thread take-up device (6) up and down, Wherein, when the thread take-up device (6) is in the upper position, the Internet cable (22) is in the first position W1 in the arc-shaped slot (21), and when the thread take-up device (6) is moved to the lower position, the Internet cable ( 22) correspondingly moved to the second position W2 in the arc-shaped slot (21); the upper shuttle needle (3) is arranged below the lead frame (2), and it follows an arc-shaped path corresponding to the third bur (13) The displacement between the outer side (that is, the left side) and the lead frame (2), that is, the left side corresponding to the third bur (13) is defined as the left starting point of the arc path, and the place corresponding to the lead frame (2) Is the right end of the arc-shaped path; the upper needle (3) has a hook portion (31), which is used for dialing the Internet cable (22); the first clamp (4) ) Is installed adjacent to the outer side (ie, left side) of the third bur (13), and On the opposite side of the lead frame (2), the first clamp (4) is used to clamp the first suture (14); the second clamp (5) is installed adjacent to the first clamp Above the (4), the second clamp (5) is used to clamp the internet cable (22).

Please refer to the first to seventh pictures below. When the sewing machine is in the initial ready-to-sewing state, the needle post (1) includes the first needle (11) at the upper starting point, and the Internet cable (2 2) It is fixed by the clamp of the second thread clamp (5), the upper needle (3) is outside the third needle (13) (that is, at the left starting point), and the first stitch (14) is outside Push it so that it is clamped by the first clamp (4); at this time, the Internet cable (22) passes from the arc slot (21) of the lead frame (2) in the first position W1 to the first needle (11) ) And the second bur (12) are the first segment, and the first suture (14) passes through the needle hole (111) of the first bur (11) to the first thread clamp. (4) The line segment of the pinch point is the second line segment. When the first line segment and the second line segment are projected onto a horizontal reference plane, they form an angle θ with each other to form a staggered state, and the first seam The line (14) is over the Internet line (22) (as shown in the eighth figure).

When the sewing machine starts sewing, the entire needle column (1) starts to move downward (see the fourth to sixth figures), so that the first bur (11), the second bur (12), and the third bur (13) begin. Insert it downward, because the line from the first position W1 that passes through the arc slot (21) of the lead frame (2) to the line clamped by the second clamp (5) just passes through the first Between the bur (11) and the second bur (12), the first suture (1) that passes through the first bur (11) pinhole (111) and is clamped by the first thread clamp (4) 14) It is staggered above the internet cable (22). Therefore, the first stitch (11) is inserted and displaced, which will link the first stitch (14) and then press the internet cable (22). When the needle (11), the second bur (12), and the third bur (13) reach the lower starting position of the lowering and continue to go back, the first stitch (14), the second stitch (15), the first stitch The three stitches (16) are interwoven with the bottom thread (81) driven by the lower shuttle (8), and the upper stitch (3) executes an arc path and moves from the left starting point to the right ending point (see section (Five, six, nine pictures), at this time the thread take-up (6) will move to the lower The square position causes the internet cable (22) to move to the second position W2 in the arc slot (21) of the lead frame (2). Then, when the first bur (11), the second bur (12), When the third bur (13) starts to move from the lower starting point to the upper starting point, the network cable (22) is from the second position W2 of the lead frame (2) to the line segment clamped by the second clamp (5). Just past the hook (31) of the upper needle (3), at this time the upper needle (3) also moves from the right end point to the left start point, and this displacement will hook the Internet cable (22) to dial the Internet The stitch (22) to the outer side of the third stitch (13) (that is, the left side) completes a stitch cycle (see the seventh figure); after that, as the next stitch cycle moves, the first stitch (11), the first When the second bur (12) and the third bur (13) move from the upper starting point to the lower starting point, and when the upper shuttle (3) moves from the left starting point to the right end again, the upper needle (3) is released. Internet cable (22), so that the Internet cable (22) is looped around the third bur (13), and then linked with the third stitch (16) and interwoven with the net, so that a continuous S-shaped decoration is formed on the surface of the fabric repeatedly Stitches.

From the above description, it can be known that the method for preventing the leakage of the Internet cable according to the present invention includes the following steps: Step 1: The first bur (11) and the second bur (12) are located at the upper starting point and pass through the lead frame ( 2) The end of the Internet cable (22) is fixed to the left side of the first bur (11) by a clip, and the Internet cable (22) passes through the lead frame (2) and further passes through the first bur (11). A gap between the second bur (12) and each other when projected onto a horizontal reference plane; Step 2: The first suture (14) passing through the first bur (11) is guided to the left side of the first bur (11) by an external force, and is clamped and fixed, so that the first suture (14) is connected by an internet cable ( 22) The upper stagger crosses; Step 3: When the first needle (11) starts to move from the upper starting point to the lower starting point, the first suture (14) lowers the wire (22) and interweaves with the bottom (81) After the network is connected, the internet cable (22) is moved by the thread take-up device (6) from the first position W1 (that is, the rear end) of the lead frame (2) to the second position W1 (that is, the front end), and at the same time, the shuttle needle (3) Perform an arc path and move from the left starting point to the right ending point; Step 4: When the first needle (11) starts to move from the lower starting point to the upper starting point, the Internet cable (22) falls into the upper shuttle needle (3 ) Hook section (31), at this time, the upper needle (3) follows the arc path and moves from the right end point to the left start point, and hooks the Internet cable (22) to the third bur (13). On the left.

Wherein, the device for starting and not leaking a thread of the Internet cable of the present invention further includes a suture guide assembly (7), which is arranged outside the first bur (11) and is used for guiding the first suture (14). Lead to the first clamp (4), and clamp and fix the first clamp (4). Wherein, the suture guiding component (7) is a blower, and the output airflow blows at least the first suture (14) to the first thread clamp (4).

In the above embodiment, the first bur (11), the second bur (12), and the third bur (13) are installed on the needle post (1) as an illustration. In fact, according to the work requirements, if the needle post (1) Only the first bur (11) and the second bur are provided (12) or the first bur (11) and the third bur (13) can also achieve the effect of preventing the network cable (22) from sewing.

The above are only a part of the embodiments of the present invention, and are not intended to limit the present invention. Those modified according to the creative spirit and characteristics of the present invention with slight changes should also be included in the scope of this patent.

In summary, the embodiments of the present invention can indeed achieve the expected use effect, and the specific technical means disclosed have not only been found in similar products, nor have they been disclosed before the application. They have fully complied with the patent law. Regulations and requirements, applying for an invention patent in accordance with the law, and begging for examination and granting the patent, it is a matter of merits.

Claims (8)

The utility model relates to a device for starting and not leaking a wire of a sewing machine, which comprises a needle post. The needle post is assembled with a plurality of burs which extend downward and are arranged in a horizontal and sequential manner from right to left. The burs include at least A first bur and a second bur, the first bur and the second bur are respectively threaded with a first suture and a second suture; a lead frame is installed adjacent to the first bur On the right side, the lead frame is provided with an Internet cable; an upper shuttle needle is provided below the lead frame, and the upper shuttle needle is displaced in an arc path between the corresponding lead frame and the needle post; A first thread clamp is installed on the left side of the first bur so as not to hinder the up and down movement of the needle post, and is located on the opposite side of the lead frame to clamp at least the first slit. A second thread clamp installed above the first thread clamp, the second thread clamp is used to clamp the internet cable; when the first suture is the first thread clamp When a cable clamp is used and the Internet cable is the second cable clamp, the Internet cable passes through the lead frame after passing through the wire frame. A first bur extends to the second bur as a first thread segment, and the first suture passes from a needle hole of the first bur to a clamp clamped by the first thread clamp. The check point is a second line segment. When the first line segment and the second line segment are projected onto a horizontal reference plane, an angle θ is formed, and the first suture spans above the Internet line. The device for starting and not leaking a wire of a sewing machine according to item 1 of the scope of patent application, further comprising a sewing thread guide assembly provided on the right side of the first bur for A suture is guided to the first thread clamp and clamped and fixed for the first thread clamp. According to the device of claim 2 in the patent application, the device for starting the seam of a sewing machine and not leaking the thread, wherein the suture guiding component is a blower pipe, and the output airflow blows at least the first suture to The first clamp is clamped by the first clamp. A method of sewing a net wire of a sewing machine and not leaking the thread. Before the stitch of the sewing machine is started, a net wire and a first suture are respectively clamped near the ends, and the first suture is passed through by itself. A second segment is from the pinhole of a first bur to the clamped portion, and the Internet cable extends through the lead frame through the first bur to the second bur to be a first segment. , The first line segment and the second line segment intersect with each other to form an included angle θ when projected onto a horizontal reference plane, and the first stitch line crosses above the Internet line. According to the method of claim 4 of the scope of patent application, the method of sewing the net of a sewing machine without leaking the thread, wherein before the sewing machine lowers the needle, the first thread that passes through the needle hole of the first needle is sewn. The suture is clamped at its end by external force. According to the method of claim 5 of the scope of the patent application, the method for starting the seam of a sewing machine without leaking the thread, wherein the external force is a wind force generated by a blower pipe. A method for starting and not leaking a net of a sewing machine includes the following steps: Step 1: a first bur and a second bur are located at an upper starting point, and a net is passed through a lead frame on the right side of the first bur and The end clip is fixed on the left side of the first bur, and the Internet cable is further correspondingly projected to a first through the first bur and the second bur after passing through the lead frame. The gap between each other when the horizontal reference plane is horizontal; step two: the first suture passing through the first bur is guided to the left side of the first bur by external force and clamped to fix the first seam The lines are staggered across the internet cable; step three: when the first bur starts to move from the upper starting point to the lower starting point, the first suture presses down the internet cable and interlaces with the bottom line to form a net , The internet cable is moved from the rear end to the front end of the lead frame by a thread picker, and at the same time, a shuttle needle executes an arc path and moves from the left starting point to the right ending point; step four: the first car When the needle starts to move from the lower starting point to the upper starting point, the internet cable correspondingly falls into the hook portion of the upper shuttle needle, When the needle on the shuttle follow an arcuate path from right to left to move the reverse starting point and end point of the hook to pull the Internet line. According to the method of claim 7 of the scope of the patent application, the method for starting the seam of a sewing machine without leaking the thread, wherein the external force in step 2 is an airflow generated by a blower pipe and will pass through the pinhole of the first needle. The first suture is guided to the left side of the first bur and is clamped and fixed.