CN112080868A - Sewing machine and thread trimming mechanism thereof - Google Patents
Sewing machine and thread trimming mechanism thereof Download PDFInfo
- Publication number
- CN112080868A CN112080868A CN202011223534.2A CN202011223534A CN112080868A CN 112080868 A CN112080868 A CN 112080868A CN 202011223534 A CN202011223534 A CN 202011223534A CN 112080868 A CN112080868 A CN 112080868A
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- fixedly connected
- sewing machine
- gear
- thread
- machine
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B65/00—Devices for severing the needle or lower thread
- D05B65/02—Devices for severing the needle or lower thread controlled by the sewing mechanisms
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a sewing machine and a thread cutting mechanism of the sewing machine, relates to the technical field of thread cutting mechanisms, and aims to solve the problems that the conventional sewing machine is inconvenient in thread cutting, needs manual thread cutting, is low in efficiency and is easy to cut inaccurately. The invention not only facilitates automatic thread cutting after the sewing machine is used, but also facilitates maintenance of the sewing machine, improves the practicability of the device and is suitable for market use.
Description
Technical Field
The invention relates to the technical field of thread trimming mechanisms, in particular to a sewing machine and a thread trimming mechanism of the sewing machine.
Background
A sewing machine is a machine that uses one or more sewing threads to form one or more stitches in a material to be sewn, thereby interweaving or stitching one or more layers of material. The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. The artistic forms of hand-push embroidery, computer embroidery and the like are derived, but the existing sewing machine is inconvenient for cutting, needs manual cutting, has low efficiency and is easy to cut inaccurately, so that the sewing machine and the thread cutting mechanism of the sewing machine are provided.
Disclosure of Invention
The invention provides a sewing machine and a thread cutting mechanism of the sewing machine, which solve the problems that the existing sewing machine is inconvenient to cut threads, needs manual thread cutting, is low in efficiency and is easy to cut inaccurately.
In order to achieve the purpose, the invention adopts the following technical scheme:
the sewing machine and the thread trimming mechanism of the sewing machine comprise a workbench, wherein the top of the workbench is fixedly connected with a fixed block, the top of the fixed block is rotatably connected with a first gear, the top end of the first gear is fixedly connected with a screw rod, the outer thread sleeve of the screw rod is provided with a threaded pipe, the top end of the threaded pipe is fixedly connected with a machine body, the left end of the machine body is provided with a motor, the right end of the machine body is provided with a transmission block, the right end of the transmission block is provided with a machine head, the machine needle is arranged in the machine head, the bottom of the machine head is provided with a first thread placing hole, the bottom of the machine needle is provided with a third thread placing hole, the left side of the machine needle is fixedly connected with a lifting block, the inner part of the lifting block is provided with a second thread placing hole, the left end of the lifting block is fixedly connected with a rack, the, the utility model discloses a cutter, including fuselage, second gear and rack meshing transmission, the front fixedly connected with first bevel gear of second gear, the bottom fixedly connected with backing plate of fuselage, the right side fixedly connected with second dead lever of backing plate, the right-hand member fixedly connected with bearing of second dead lever, the fixed cover in inside of bearing is equipped with the pivot, the bottom fixedly connected with cutter of pivot, the top fixedly connected with second bevel gear of pivot, second bevel gear and first bevel gear meshing transmission.
Preferably, the right end of the backing plate is provided with a sliding groove, and the machine needle is movably sleeved inside the sliding groove.
Preferably, two bolt holes are formed in the left side of the machine body, bolts are movably sleeved inside the two bolt holes, motor covers are fixedly connected to the left ends of the two bolts, fixing holes are formed in the upper portion of the bolts, inserting rods are movably sleeved inside the fixing holes, and handles are fixedly connected to the top ends of the inserting rods.
Preferably, the left side of fixed block is rotated and is connected with the third gear, third gear and the meshing transmission of first gear, the left side fixedly connected with handle of third gear.
Preferably, a first wire releasing hole is formed in the bottom of the machine head, a second wire releasing hole is formed in the lifting block, and a third wire releasing hole is formed in the bottom of the machine needle.
Preferably, the workbench is connected with the fixed block through a bolt, and the machine body is connected with the base plate through a bolt.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the installation of the structures such as the workbench, the fixed block, the screw rod, the threaded pipe, the machine body, the transmission block, the motor, the machine head, the machine needle, the lifting block, the rotating shaft, the cutter, the base plate, the motor cover and the third gear, when the sewing is finished, the rack reaches the highest point, the position where the cutter rotates to the thread is used for cutting the thread, the automatic thread cutting is completed, the handle is rotated, the handle drives the third gear to rotate, and the threaded pipe drives the machine body and the sewing mechanism to ascend, so that the maintenance and the replacement of the sewing machine are convenient.
Drawings
FIG. 1 is a schematic front view of a sewing machine and a thread trimming mechanism of the sewing machine according to the present invention;
fig. 2 is a partially enlarged view of a sewing machine and a thread trimming mechanism of the sewing machine according to the present invention at a position a.
In the figure: 1 workbench, 2 fixed blocks, 3 first gears, 4 screws, 5 threaded pipes, 6 machine bodies, 7 transmission blocks, 8 motors, 9 machine heads, 10 machine needles, 11 lifting blocks, 12 racks, 13 second gears, 14 first bevel gears, 15 second bevel gears, 16 rotating shafts, 17 cutters, 18 backing plates, 19 motor covers and 20 third gears.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the present solution provides an embodiment: the sewing machine and the thread trimming mechanism of the sewing machine comprise a workbench 1, a fixed block 2 is fixedly connected to the top of the workbench 1, a first gear 3 is rotatably connected to the top of the fixed block 2, a screw rod 4 is fixedly connected to the top end of the first gear 3, a threaded pipe 5 is sleeved on the outer thread of the screw rod 4, a machine body 6 is fixedly connected to the top end of the threaded pipe 5, a motor 8 is installed at the left end of the machine body 6, a transmission block 7 is installed at the right end of the machine body 6, a machine head 9 is installed at the right end of the transmission block 7, a machine needle 10 is installed inside the machine head 9, a first thread placing hole is formed at the bottom of the machine head 9, a third thread placing hole is formed at the bottom of the machine needle 10, a lifting block 11 is fixedly connected to the left side of the machine needle 10, a second thread placing hole is formed inside the lifting block 11, a rack 12 is fixedly connected to the left end, the second gear 13 is in meshing transmission with the rack 12, the front face of the second gear 13 is fixedly connected with a first bevel gear 14, the bottom of the machine body 6 is fixedly connected with a base plate 18, the right side of the base plate 18 is fixedly connected with a second fixing rod, the right end of the second fixing rod is fixedly connected with a bearing, the inside of the bearing is fixedly sleeved with a rotating shaft 16, the bottom end of the rotating shaft 16 is fixedly connected with a cutter 17, the top end of the rotating shaft 16 is fixedly connected with a second bevel gear 15, and the second bevel gear 15 is in meshing transmission with the first.
In this embodiment, the right end of the backing plate 18 is provided with a chute, and the needle 10 is movably sleeved inside the chute.
In this embodiment, two bolt holes have been seted up in the left side of fuselage 6, and the equal movable sleeve in inside in two bolt holes is equipped with the bolt, and the left end fixedly connected with motor cover 19 of two bolts is located the inside of top bolt and has seted up the fixed orifices, and the inside movable sleeve of fixed orifices is equipped with the inserted bar, and the top fixedly connected with handle of inserted bar.
In this embodiment, the left side of the fixed block 2 is rotatably connected with a third gear 20, the third gear 20 is in meshing transmission with the first gear 3, and the left side of the third gear 20 is fixedly connected with a handle.
In this embodiment, a first wire releasing hole is formed in the bottom of the machine head 9, a second wire releasing hole is formed in the interior of the lifting block 11, and a third wire releasing hole is formed in the bottom of the machine needle 10.
In this embodiment, the table 1 is connected to the fixing block 2 by bolts, and the body 6 is connected to the pad 18 by bolts.
The working principle is that firstly, the sewing machine is started, a machine head 9 of the sewing machine drives a motor needle to drive a thread to be pulled out from a first thread releasing hole, a second thread releasing hole and a third thread releasing hole to sew the fabric below a backing plate 18, a machine needle 10 drives a lifting block 11 to move up and down, the lifting block 11 drives a rack 12 to move up and down, the rack 12 is in meshing transmission with a second gear 13, so that a first bevel gear 14 is driven to be in meshing transmission with a second bevel gear 15, the second bevel gear 15 drives a rotating shaft 16 to rotate, the rotating shaft 16 drives a cutter 17 to slightly rotate left and right without cutting the thread, only after the sewing is finished, the rack 14 reaches the highest point, the position of the thread rotated by the cutter cuts the thread, the automatic thread cutting is finished, the handle is rotated, the handle drives a third gear 20 to rotate, the third gear 20 is in meshing transmission with the first gear 3, so that a screw rod 4 is driven, the screwed pipe 5 drives the machine body and the sewing mechanism to ascend, so that the sewing machine is convenient to maintain and replace, automatic thread cutting is performed after the sewing machine is used, the maintenance of the sewing machine is facilitated, the practicability of the device is improved, and the device is suitable for being used in the market.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. Sewing machine and sewing machine thread trimming mechanism, including workstation (1), its characterized in that, the top fixedly connected with fixed block (2) of workstation (1), the top of fixed block (2) is rotated and is connected with first gear (3), the top fixedly connected with screw rod (4) of first gear (3), the outside screw thread cover of screw rod (4) is equipped with screwed pipe (5), the top fixedly connected with fuselage (6) of screwed pipe (5), motor (8) are installed to the left end of fuselage (6), driving block (7) are installed to the right-hand member of fuselage (6), aircraft nose (9) are installed to the right-hand member of driving block (7), the internally mounted of aircraft nose (9) has needle (10), first unwrapping wire hole has been seted up to the bottom of aircraft nose (9), third unwrapping wire hole has been seted up to the bottom of needle (10), the left side of the machine needle (10) is fixedly connected with a lifting block (11), a second wire releasing hole is formed in the lifting block (11), the left end of the lifting block (11) is fixedly connected with a rack (12), the right side of the machine body (6) is fixedly connected with a first fixing rod, the right end of the first fixing rod is rotatably connected with a second gear (13), the second gear (13) is in meshing transmission with the rack (12), the front side of the second gear (13) is fixedly connected with a first bevel gear (14), the bottom of the machine body (6) is fixedly connected with a backing plate (18), the right side of the backing plate (18) is fixedly connected with a second fixing rod, the right end of the second fixing rod is fixedly connected with a bearing, a rotating shaft (16) is fixedly sleeved in the bearing, the bottom end of the rotating shaft (16) is fixedly connected with a cutter (17), and the top end of the rotating shaft (16) is fixedly connected, the second bevel gear (15) is in meshed transmission with the first bevel gear (14).
2. The sewing machine and the thread trimming mechanism of the sewing machine according to claim 1, wherein the right end of the backing plate (18) is provided with a chute, and the needle (10) is movably sleeved in the chute.
3. The sewing machine and the trimming mechanism of the sewing machine according to claim 1, wherein two pin holes are formed in the left side of the machine body (6), pins are movably sleeved in the two pin holes, motor covers (19) are fixedly connected to the left ends of the two pins, fixing holes are formed in the upper portions of the pins, inserting rods are movably sleeved in the fixing holes, and handles are fixedly connected to the top ends of the inserting rods.
4. The sewing machine and the thread trimming mechanism of the sewing machine according to claim 1, wherein a third gear (20) is rotatably connected to the left side of the fixed block (2), the third gear (20) is in meshing transmission with the first gear (3), and a handle is fixedly connected to the left side of the third gear (20).
5. The sewing machine and the thread trimming mechanism of the sewing machine according to claim 1, wherein a first thread releasing hole is formed at the bottom of the machine head (9), a second thread releasing hole is formed inside the lifting block (11), and a third thread releasing hole is formed at the bottom of the machine needle (10).
6. The sewing machine and the trimming mechanism of the sewing machine according to claim 1, wherein the table (1) is connected to the fixed block (2) by bolts, and the body (6) is connected to the backing plate (18) by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011223534.2A CN112080868A (en) | 2020-11-05 | 2020-11-05 | Sewing machine and thread trimming mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011223534.2A CN112080868A (en) | 2020-11-05 | 2020-11-05 | Sewing machine and thread trimming mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112080868A true CN112080868A (en) | 2020-12-15 |
Family
ID=73730414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011223534.2A Withdrawn CN112080868A (en) | 2020-11-05 | 2020-11-05 | Sewing machine and thread trimming mechanism thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112080868A (en) |
-
2020
- 2020-11-05 CN CN202011223534.2A patent/CN112080868A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201215 |
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| WW01 | Invention patent application withdrawn after publication |