Sewing machine with needle threading facilitation

Abstract

The application discloses a sewing machine facilitating needle threading, which comprises a sewing machine body and a machine base, the bottom of the sewing machine body is fixedly connected to the top of the machine base, a presser foot and a needle are installed in the sewing machine body, a needle hole is formed in the needle, a sliding groove sleeve is fixedly connected to one side of the needle, a mounting seat is fixedly connected to the other side of the needle, a needle threading plate is arranged below the sliding groove sleeve, a mounting shell is fixedly connected to one side of the needle threading plate, a clamping assembly for limiting a needle thread is arranged in the mounting shell, the clamping assembly passes through the needle hole, an adapter sleeve is arranged below the mounting seat, the adapter sleeve is internally provided with an adapter groove matched with the clamping assembly, and the adapter groove is internally provided with an adapter assembly for clamping the needle thread in the clamping assembly. The clamping assembly can quickly limit the needle thread, so that the trouble of manually threading the needle every time of sewing can be avoided, time is saved, and the sewing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of sewing machine technology, specifically to a sewing machine that facilitates threading a needle. Background Technology

[0002] A sewing machine is a machine used to create stitches on fabric, interweaving or sewing together one or more layers of fabric; it typically consists of one or more sewing threads passing through the fabric, forming various shapes and patterns through various stitches and thread patterns.

[0003] In existing sewing machines, manual threading of the needle is usually required before use. This manual operation is highly dependent on the operator's experience and skill, and it is easy to encounter situations where the needle cannot be threaded through the eye. When the needle needs to be replaced, it must be threaded again, requiring the user to spend more time and effort manually. This increases the complexity and difficulty of the operation. Because the manual threading process is tedious and difficult, the time spent using the sewing machine is correspondingly increased, reducing the efficiency of the sewing machine and affecting the efficiency of the entire garment production process. Therefore, we propose a sewing machine that facilitates needle threading. Summary of the Invention

[0004] The purpose of this invention is to provide a sewing machine that facilitates threading the needle, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sewing machine that facilitates needle threading, comprising a sewing machine body and a machine base. The bottom of the sewing machine body is fixedly connected to the top of the machine base. A presser foot and a needle are installed inside the sewing machine body. The needle has a needle hole inside. A sliding sleeve is fixedly connected to one side of the needle, and a mounting base is fixedly connected to the other side of the needle. A needle threading plate is provided below the sliding sleeve. A mounting shell is fixedly connected to one side of the needle threading plate. A clamping component for restricting the needle thread is provided inside the mounting shell. The clamping component passes through the needle hole. An adapter sleeve is provided below the mounting base. The adapter sleeve has an adapter groove adapted to the clamping component. The adapter groove has an adapter component for transferring the needle thread inside the clamping component.

[0006] Preferably, the clamping assembly includes two rotating shafts rotatably connected inside the mounting housing, with movable clamps symmetrically fixedly connected to both ends of the two rotating shafts, and a connecting rod fixedly connected between the two movable clamps, with a closing clamp rotatably connected to the outer surface of the connecting rod.

[0007] Preferably, the outer surface of the connecting rod is fitted with two torsion springs, one end of each torsion spring is fixedly connected to two movable clamps, and the other end of each torsion spring is fixedly connected to a closing clamp.

[0008] Preferably, the mounting shell and the needle-threading plate have a common movable groove inside, and a double-sided rack is slidably connected in the movable groove. One end of the double-sided rack extends to one side of the mounting shell and is fixedly connected to a thread holder. The inside of the thread holder is used to hold needles and threads. The outer surfaces of the two rotating shafts are respectively fixedly connected to micro gears, and the two micro gears mesh with the double-sided rack.

[0009] Preferably, the adapter groove is internally fixedly connected with a plurality of abutting posts, and the plurality of abutting posts abut against a plurality of movable clamps respectively.

[0010] Preferably, the adapter assembly includes two rotating plates rotatably connected inside the adapter groove. An adapter component is fixedly connected to one side of each of the two rotating plates that are close to each other. A barb plate is fixedly connected to one side of each of the two adapter components. The barb plate is used to hook the needle and thread. The adapter groove has an internal structure with a transmission mechanism for driving the rotating plates to rotate.

[0011] Preferably, the transmission mechanism includes two connecting seats disposed inside the transition groove. Rollers are rotatably connected to one end of each of the two connecting seats that are close to each other. Traction rods are fixedly connected to both sides of each of the two connecting seats. Curved plates are fixedly connected to the top and bottom of the two rotating plates respectively. The curved plates have traction grooves inside. The traction rods extend into the traction grooves of the curved plates and abut against them.

[0012] Preferably, the top and bottom of the wire placement component are fixedly connected with inclined blocks, the two inclined blocks abut against the two rollers respectively, the interior of the transition groove is fixedly connected with two telescopic rods, the telescopic ends of the two telescopic rods are fixedly connected to the two connecting seats respectively, the outer surfaces of the two telescopic rods are respectively fitted with springs, one end of the two springs is fixedly connected to the inner wall of the transition groove respectively, and the other end of the two springs is fixedly connected to the two connecting seats respectively.

[0013] Preferably, the interior of the slide sleeve has a cavity, and an adjusting screw is rotatably connected inside the cavity of the slide sleeve. A threaded block is threadedly connected to the outer surface of the adjusting screw, and a first electric telescopic rod is fixedly connected to the bottom of the threaded block. The telescopic end of the first electric telescopic rod is fixedly connected to the needle plate, and one end of the adjusting screw extends through the slide sleeve to one side and is fixedly connected to an adjusting knob.

[0014] Preferably, a second electric telescopic rod is fixedly connected to the bottom of the mounting base, and the telescopic end of the second electric telescopic rod is fixedly connected to the adapter sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention, by incorporating a clamping component, can quickly limit the needle and thread, avoiding the inconvenience of manually threading the needle each time sewing, saving time and improving sewing efficiency. Simultaneously, the clamping mechanism prevents the operator's hands from directly contacting the needle, reducing the risk of injury and improving the safety of using the sewing machine. Furthermore, the inclusion of an adjusting screw and threaded block ensures stable passage of the needle and thread through the needle hole, eliminating the need for the user to visually adjust its position. The cooperation between the closing clamp and the torsion spring effectively improves the clamping efficiency of the needle and thread, while the housing, movable clamp, and closing clamp form a closed loop that effectively prevents the needle and thread from slipping out.

[0017] By incorporating an adapter component, the needle and thread inside the clamping component can be quickly transferred to the adapter slot, thereby enabling rapid needle threading. Through the cooperation between the clamping component and the adapter component, the clamping of the needle and thread after threading can be quickly released, thus improving the processing efficiency after threading. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the first three-dimensional structure of the needle in this invention;

[0020] Figure 3 This is a schematic diagram of the second three-dimensional structure of the needle in this invention;

[0021] Figure 4 This is a schematic diagram of the clamping component in this invention;

[0022] Figure 5 This is a cross-sectional structural diagram of the mounting shell in this invention;

[0023] Figure 6 This is a schematic diagram of the structure of the adapter sleeve in this invention;

[0024] Figure 7 This is a schematic cross-sectional view of the adapter sleeve in this invention;

[0025] Figure 8 This is a schematic diagram of the structure of the adapter component in this invention.

[0026] In the diagram: 100. Sewing machine body; 101. Machine base; 102. Presser foot; 103. Needle; 104. Needle eye; 200. Slide cover; 201. Adjusting screw; 202. Threaded block; 203. Adjusting knob; 204. First electric telescopic rod; 205. Needle plate; 206. Mounting housing; 207. Rotary shaft; 208. Movable clamp; 209. Connecting rod; 210. Torsion spring; 211. Closing clamp; 212. 1. Line setting component; 213. Inclined block; 214. Double-sided rack; 215. Miniature gear; 300. Adapter sleeve; 301. Mounting base; 302. Second electric telescopic rod; 303. Adapter groove; 304. Abutment post; 400. Connecting seat; 401. Roller; 402. Telescopic rod; 403. Spring; 404. Turning plate; 405. Curved plate; 406. Traction rod; 407. Adapter component; 408. Hook plate. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1

[0029] Please see Figure 1-8 This invention provides a technical solution: a sewing machine that facilitates needle threading, comprising a sewing machine body 100 and a machine base 101. The bottom of the sewing machine body 100 is fixedly connected to the top of the machine base 101. A presser foot 102 and a needle 103 are installed inside the sewing machine body 100. The needle 103 has a needle hole 104 inside. A sliding sleeve 200 is fixedly connected to one side of the needle 103, and a mounting base 301 is fixedly connected to the other side of the needle 103. A needle threading plate 205 is provided below the sliding sleeve 200, and a mounting shell 206 is fixedly connected to one side of the needle threading plate 205. An internal clamping assembly for restricting the needle and thread is provided. The clamping assembly passes through the needle hole 104. The clamping assembly includes two rotating shafts 207 rotatably connected inside the mounting housing 206. The two ends of the two rotating shafts 207 are respectively fixedly connected to movable clamps 208. The two movable clamps 208 are fixedly connected together to a connecting rod 209. The outer surface of the connecting rod 209 is rotatably connected to a closing clamp 211. The outer surface of the connecting rod 209 is fitted with two torsion springs 210. One end of the two torsion springs 210 is fixedly connected to the two movable clamps 208 respectively. The other end of the two torsion springs 210 is fixedly connected to the closing clamp 211 together.

[0030] The sewing machine body 100, presser foot 102, and needle 103 are all existing technologies and will not be described in detail here.

[0031] In a preferred embodiment, the mounting shell 206 and the needle plate 205 are both provided with a movable groove. A double-sided rack 214 is slidably connected in the movable groove. One end of the double-sided rack 214 extends to one side of the mounting shell 206 and is fixedly connected to a thread holder 212. The thread holder 212 is used to hold needles and threads. The outer surfaces of the two rotating shafts 207 are respectively fixedly connected to micro gears 215, and the two micro gears 215 mesh with the double-sided rack 214.

[0032] Specifically, the needle and thread that need to pass through the needle hole 104 are placed inside the thread holder 212 through two closing clips 211. During this process, when the needle and thread pass through the two closing clips 211, the initial state of the two closing clips 211 is a near-closed state, such as... Figure 4 As shown, when the needle and thread want to pass through the two closing clamps 211, they will push the two closing clamps 211 to rotate on the connecting rod 209, thereby moving away from each other to form a gap. This gap allows the needle and thread to pass through. After the needle and thread have passed through, the two closing clamps 211 will reset and reapproach and close under the action of the torsion spring 210, thereby forming a closed loop with the movable clamp 208 and the mounting shell 206 to block the needle and thread. At this time, the needle and thread are placed inside the thread holder 212.

[0033] Furthermore, the interior of the slide sleeve 200 is provided with a cavity, and an adjusting screw 201 is rotatably connected inside the cavity of the slide sleeve 200. A threaded block 202 is threadedly connected to the outer surface of the adjusting screw 201. A first electric telescopic rod 204 is fixedly connected to the bottom of the threaded block 202. The telescopic end of the first electric telescopic rod 204 is fixedly connected to the needle plate 205. One end of the adjusting screw 201 extends through the slide sleeve 200 to one side and is fixedly connected to an adjusting knob 203.

[0034] When the needle and thread are placed inside the clamping assembly, rotating the adjusting knob 203 causes the adjusting screw 201 to rotate. At this time, the adjusting screw 201 rotates, which in turn causes the threaded block 202 to move, thereby causing the first electric telescopic rod 204 to move and pushing the needle-threading plate 205 to move horizontally. Before this, the position of the clamping assembly can be adjusted by opening the first electric telescopic rod 204 so that it is on the same horizontal line as the needle hole 104. With the movement of the threaded block 202, the clamping assembly will smoothly pass through the needle hole 104, so that the needle and thread pass through the needle hole 104 inside the clamping assembly, thus realizing the threading of the needle.

[0035] It is worth mentioning that the needle plate 205 and the needle hole 104 are on the same vertical line, which can effectively reduce the calibration time between the needle plate 205 and the needle hole 104, improve efficiency, and improve the accuracy of threading.

[0036] In summary, by incorporating a clamping component to quickly limit the needle and thread, the hassle of manually threading the needle each time sewing is required can be avoided, saving time and improving sewing efficiency. At the same time, the clamping mechanism can prevent the operator's hands from directly contacting the needle, reducing the risk of injury and improving the safety of using the sewing machine. Furthermore, the inclusion of an adjusting screw 201 and a threaded block 202 ensures that the needle and thread pass stably through the needle hole 104 without the user needing to adjust its position relative to the needle hole 104 by eye. The cooperation between the closing clamp 211 and the torsion spring 210 can effectively improve the clamping efficiency of the needle and thread. Meanwhile, the mounting shell 206, the movable clamp 208, and the closing clamp 211 form a closed loop that can effectively prevent the needle and thread from falling off.

[0037] Example 2

[0038] Please see Figure 1-8 This invention provides a technical solution: a sewing machine that facilitates threading a needle, comprising a sewing machine body 100 and a base 101. The bottom of the sewing machine body 100 is fixedly connected to the top of the base 101. A presser foot 102 and a needle 103 are installed inside the sewing machine body 100. The needle 103 has a needle hole 104 inside. A mounting base 301 is fixedly connected to the other side of the needle 103. An adapter sleeve 300 is provided below the mounting base 301. The adapter sleeve 300 has an adapter groove 303 adapted to a clamping assembly. The adapter groove 303 has an adapter assembly for transferring the needle and thread inside the clamping assembly. The adapter assembly includes two rotating plates 404 rotatably connected inside the adapter groove 303. Two rotating plates 404 are fixedly connected to each other on their adjacent sides, and each of the two rotating plates 407 is fixedly connected to one side of a hook plate 408. The hook plate 408 is used to hook the needle and thread. The internal structure of the adapter groove 303 has a transmission mechanism for driving the rotating plates 404 to rotate. The transmission mechanism includes two connecting seats 400 disposed inside the adapter groove 303. Each of the two connecting seats 400 is rotatably connected to a roller 401 at its adjacent end. Each of the two connecting seats 400 is fixedly connected to a traction rod 406 on both sides. The top and bottom of the two rotating plates 404 are fixedly connected to curved plates 405. The internal structure of the curved plates 405 has a traction groove. The traction rod 406 extends into the traction groove of the curved plate 405 and abuts against it.

[0039] In a preferred embodiment, inclined blocks 213 are fixedly connected to the top and bottom of the wire placement component 212, respectively. The two inclined blocks 213 abut against the two rollers 401. Two telescopic rods 402 are fixedly connected inside the transition groove 303. The telescopic ends of the two telescopic rods 402 are fixedly connected to the two connecting seats 400, respectively. Springs 403 are respectively sleeved on the outer surface of the two telescopic rods 402. One end of the two springs 403 is fixedly connected to the inner wall of the transition groove 303, and the other end of the two springs 403 is fixedly connected to the two connecting seats 400, respectively.

[0040] The bottom of the mounting base 301 is fixedly connected to a second electric telescopic rod 302. The telescopic end of the second electric telescopic rod 302 is fixedly connected to the adapter sleeve 300. The second electric telescopic rod 302 is configured to operate synchronously with the first electric telescopic rod 204, so that the adapter sleeve 300 and the needle plate 205 are on the same horizontal line.

[0041] Specifically, when the clamping assembly passes through the pinhole 104, it moves to enter the interior of the adapter groove 303. At this time, multiple movable clamps 208 will first contact the abutment post 304. As the mounting shell 206 continues to move, the movable clamps 208 continue to abut the abutment post 304, thereby driving the rotating shaft 207 to rotate, which in turn drives the micro gears 215 to rotate. The rotation of the two micro gears 215 drives the double-sided rack 214 to move, thereby pushing the wire placement member 212 to move. At the same time, when the two rotating shafts 207 rotate, they will drive the two closed clamps 2 11 separate to form a gap. As the two closed clamps 211 open, their thread-holding components 212 move. When the thread-holding components 212 move, the top and bottom inclined blocks 213 will abut against the two rollers 401. The inclined surfaces of the inclined blocks 213 will push the two rollers 401 away from each other, thereby pushing the two traction rods 406 away from each other. This causes the traction rods 406 to pull the rotating plate 404 to rotate, which in turn drives the adapter 407 to rotate, thereby driving the hook plate 408 to rotate, thus hooking the needle and thread from the inside of the thread-holding components 212 to its inside for fixing.

[0042] Furthermore, after the hook plate 408 hooks the needle thread in the thread holder 212, the adjustment knob 203 is rotated in the opposite direction to move the needle plate 205 away from the adapter sleeve 300. At this time, the thread holder 212 is disengaged from the needle thread, allowing the needle thread to pass between the two closed clamps 211, thereby releasing the restriction between the clamping components and the needle thread. When the needle plate 205 is reset, the needle thread passes through the needle hole 104 and is placed inside the adapter groove 303. At the same time, when the needle plate 205 is reset, its spring 403 pushes the connecting seat 400 down, thereby driving the hook plate 408 to reset. At this time, the hook plate 408 pulls the needle thread down and reduces the angle of its restriction on the needle thread. The user can pull the needle thread that has passed through the needle hole 104 and easily pull it to remove the needle thread from the hook plate 408, thus completing the entire needle threading operation.

[0043] In summary, by providing an adapter component, the needle and thread inside the clamping component can be quickly transferred to the inside of the adapter slot 303, thereby achieving rapid needle threading. By setting the clamping component and the adapter component to cooperate with each other, the clamping of the needle and thread after threading can be quickly released, thereby improving the processing efficiency after threading.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewing machine for easy needle threading, comprising a sewing machine body (100) and a base (101), wherein the bottom of the sewing machine body (100) is fixedly connected to the top of the base (101), and a presser foot (102) and a needle (103) are installed inside the sewing machine body (100), wherein a needle hole (104) is provided inside the needle (103), characterized in that: One side of the machine needle (103) is fixedly connected with a sliding groove sleeve (200), the other side of the machine needle (103) is fixedly connected with a mounting seat (301), the lower side of the sliding groove sleeve (200) is provided with a needle penetrating plate (205), one side of the needle penetrating plate (205) is fixedly connected with a mounting shell (206), the inside of the mounting shell (206) is provided with a clamping assembly for limiting the needle thread, the clamping assembly passes through the needle hole (104), the lower side of the mounting seat (301) is provided with an adapter sleeve (300), the inside of the adapter sleeve (300) is structured with an adapter groove (303) matched with the clamping assembly, the inside of the adapter groove (303) is structured with an adapter assembly for clamping the needle thread; The clamping assembly comprises two rotating shafts (207) rotatably connected in the inside of the mounting shell (206), two ends of the two rotating shafts (207) are respectively and symmetrically fixedly connected with movable clamps (208), the movable clamps (208) are commonly fixedly connected with a connecting rod (209), and the outer surface of the connecting rod (209) is rotatably connected with a closed clamp (211); The inside of the mounting shell (206) and the needle penetrating plate (205) is commonly provided with a movable groove, the movable groove is slidably connected with a double-sided rack (214), one end of the double-sided rack (214) extends to one side of the mounting shell (206) and is fixedly connected with a thread placing part (212), the inside of the thread placing part (212) is used for placing the needle thread, the outer surfaces of the two rotating shafts (207) are respectively fixedly connected with micro gears (215), and the two micro gears (215) are respectively engaged with the double-sided rack (214); The inside of the adapter groove (303) is fixedly connected with a plurality of abutting columns (304), and the abutting columns (304) are respectively abutted with the movable clamps (208); The adapter assembly comprises two rotating plates (404) rotatably connected in the inside of the adapter groove (303), one side of each of the two rotating plates (404) approaching each other is fixedly connected with an adapter part (407), one side of each of the two adapter parts (407) is fixedly connected with an inverted hook plate (408), the inverted hook plate (408) is used for hooking the needle thread, and the inside of the adapter groove (303) is structured with a driving mechanism for driving the rotating plates (404) to rotate; The driving mechanism comprises two connecting seats (400) arranged in the inside of the adapter groove (303), one end of each of the two connecting seats (400) approaching each other is rotatably connected with a roller (401), the two sides of each of the two connecting seats (400) are fixedly connected with a traction rod (406), the top and bottom of each of the two rotating plates (404) is fixedly connected with a curved plate (405), the inside of the curved plate (405) is structured with a traction groove, and the traction rod (406) extends into the traction groove of the curved plate (405) and abuts. The top and bottom of the thread placing part (212) are fixedly connected with inclined blocks (213), the two inclined blocks (213) abut against two rollers (401), the inside of the adapter slot (303) is fixedly connected with two telescopic rods (402), the telescopic ends of the two telescopic rods (402) are fixedly connected with two connecting seats (400), the outer surfaces of the two telescopic rods (402) are respectively sleeved with springs (403), one end of the two springs (403) is fixedly connected with the inner wall of the adapter slot (303), the other end of the two springs (403) is fixedly connected with the two connecting seats (400); When the clamping assembly passes through the needle hole (104), the movable clamps (208) are in contact with the abutment columns (304) to drive the rotating shafts (207) to rotate, the rotation of the two micro gears (215) drives the double-sided racks (214) to move to push the thread placing parts (212) to move, the rotation of the two rotating shafts (207) drives the two closing clamps (211) to open away from each other while the thread placing parts (212) move, the inclined surfaces of the inclined blocks (213) push the two rollers (401) to move away from each other, so that the traction rods (406) rotate the rotating plates (404) to drive the adapter pieces (407) to rotate to drive the barbed plates (408) to rotate, so as to hook the needle thread from the inside of the thread placing parts (212) to the inside for fixation.

2. The sewing machine of claim 1, wherein: The outer surface of the connecting rod (209) is sleeved with two torsion springs (210), one end of the two torsion springs (210) is fixedly connected with the two movable clamps (208), the other end of the two torsion springs (210) is fixedly connected with the closing clamp (211).

3. The sewing machine of claim 1, wherein: The inside of the sliding groove sleeve (200) is provided with a cavity, the adjusting lead screw (201) is rotatably connected in the cavity of the sliding groove sleeve (200), the outer surface of the adjusting lead screw (201) is threadedly connected with a threaded block (202), the bottom of the threaded block (202) is fixedly connected with a first electric telescopic rod (204), the telescopic end of the first electric telescopic rod (204) is fixedly connected with a needle penetrating plate (205), one end of the adjusting lead screw (201) extends to one side of the sliding groove sleeve (200) and is fixedly connected with an adjusting knob (203).

4. The sewing machine of claim 1, wherein: The bottom of the mounting seat (301) is fixedly connected with a second electric telescopic rod (302), the telescopic end of the second electric telescopic rod (302) is fixedly connected with an adapter sleeve (300).

Images