CN213447580U

CN213447580U - No-shuttle-center sewing machine

Info

Publication number: CN213447580U
Application number: CN202022163693.XU
Authority: CN
Inventors: 王加进
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-06-15
Anticipated expiration: 2030-09-28

Abstract

The application relates to a no shuttle-bobbin sewing machine, which comprises a bod, the organism internal rotation is connected with the lower shaft, the rotating shuttle is connected to lower shaft one end, the inside coaxial wearing of lower shaft is equipped with the yarn axle, the yarn axle runs through the lower shaft, and yarn axle one end penetrates outside the other end wears out the organism in the rotating shuttle, and the yarn hole has been seted up along yarn axle length direction to the center of the yarn axle of wearing. The lower thread enters the rotating shuttle through the threading shaft, the bobbin for placing the lower thread is not required to be installed, the lower thread is directly sent into the machine body from the outside of the machine body, the lower thread in the bobbin is not required to be frequently replaced, and the sewing efficiency of the sewing machine is improved.

Description

No-shuttle-center sewing machine

Technical Field

The application relates to the field of sewing equipment, in particular to a shuttleless sewing machine.

Background

Sewing machines are commonly used in modern life and production processes. The stitch sewed by the sewing machine is neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient. The present sewing machines use a bobbin whose lower thread is arranged on a bobbin inside a rotating shuttle, and use the bobbin tip of the rotating shuttle to hook the thread loop, and simultaneously enlarge the thread loop, and guide the thread loop to form a lock stitch.

In view of the above-mentioned related art, the inventor believes that the lower thread in the bobbin needs to be frequently replaced in use due to the small amount of thread provided by the bobbin, thereby causing inconvenience in use of the sewing machine and lowering sewing efficiency of the sewing machine.

SUMMERY OF THE UTILITY MODEL

In order to improve sewing efficiency of a sewing machine, the application provides a shuttleless sewing machine.

The technical scheme provided by the application is as follows:

a lower shaft is connected in the machine body in a rotating mode, one end of the lower shaft is connected with a rotating shuttle, a yarn penetrating shaft coaxially penetrates through the lower shaft, one end of the yarn penetrating shaft penetrates into the rotating shuttle and the other end of the yarn penetrating shaft penetrates out of the machine body, and a yarn penetrating hole is formed in the center of the yarn penetrating shaft along the length direction of the yarn penetrating shaft.

By adopting the technical scheme, the lower thread enters the rotating shuttle through the threading shaft, the bobbin for placing the lower thread is not required to be installed, the lower thread is directly sent into the machine body from the outside of the machine body, the lower thread on the bobbin is not required to be frequently replaced, and the sewing efficiency of the sewing machine is improved.

Optionally, the rotating shuttle includes a shuttle body, an inner shuttle shell and an outer shuttle shell, the shuttle body is fixedly arranged on the lower shaft, the inner shuttle shell is placed in the shuttle body and rotates with the shuttle body, the outer shuttle shell is placed in the inner shuttle shell and fixed with the inner shuttle shell, and one end of the yarn threading shaft far away from the body is connected to the inner shuttle shell in a threaded manner.

By adopting the technical scheme, the outer shuttle shell and the inner shuttle shell are used for fixing the threading shaft to match with the shuttle body to realize the rotation of the lower thread on the rotating shuttle.

Optionally, the inner bobbin case is internally and fixedly provided with a mounting column, the outer bobbin case is provided with a fixing part in a penetrating manner, the fixing part comprises a screw rod part and a butting part, the screw rod part penetrates through the outer bobbin case and is in threaded connection with the mounting column, the butting part is fixedly arranged at the screw rod part and is far away from one end of the mounting column, the butting part is butted against one side of the outer bobbin case, which deviates from the inner bobbin case, on the outer bobbin case, a connecting hole is formed in the mounting column along the axis direction of the mounting column, a yarn outlet hole is formed in the fixing part along the axis direction of the screw rod part, and the.

Through adopting above-mentioned technical scheme, the setting of mounting can be on the one hand with the outer bobbin case reinforcement setting on interior bobbin case, and on the other hand can make the yarn leave the rotating shuttle through going out the yarn mouth.

Optionally, a plurality of guide grooves are circumferentially formed on one side of the abutting portion, which is away from the outer bobbin case.

By adopting the technical scheme, the guide groove is formed to guide the yarn, and the guide lower line is fixed on the rotating shuttle.

Optionally, a guide tab is mounted on a side of the outer bobbin case facing away from the inner bobbin case.

Through adopting above-mentioned technical scheme, the guide strip plays the guide effect to inserting the line, makes the transport of inserting the line more smooth.

Optionally, one end of the threading shaft, which is far away from the rotating shuttle, is sleeved with a guide sleeve.

Through adopting above-mentioned technical scheme, the setting up of uide bushing can lead to inserting the yarn axle of inserting down, reduces to insert down the line and wear epaxial friction of yarn and the cracked probability appears.

Optionally, the lower shaft comprises an installation part and a connection part, the installation part is installed on the machine body and rotates on the machine body, the connection part is integrally formed on the installation part, the connection part is fixed with the rotating shuttle, the diameter of the connection part is larger than that of the installation part, and the connection part is provided with an oil transportation assembly.

Through adopting above-mentioned technical scheme, connecting portion are used for connecting the rotating shuttle, also are used for setting up the oil transportation subassembly simultaneously.

Optionally, the oil transportation assembly comprises a sleeve, an oil transportation pipe and an oil transportation channel, the sleeve is sleeved on the mounting portion, the oil transportation pipe is mounted on the sleeve, the oil transportation channel is arranged on the connecting portion, and the oil transportation channel is communicated with the oil transportation pipe and the interior of the shuttle body.

Through adopting above-mentioned technical scheme, the oil transportation subassembly can send lubricating oil into between the shuttle and the interior bobbin case, makes the rotation between the shuttle and the interior bobbin case more smooth.

Optionally, a plurality of oil distributing grooves are formed in the shuttle body.

By adopting the technical scheme, the oil separating groove can divide the lubricating oil entering between the shuttle body and the inner shuttle shell into a plurality of parts, so that the lubricating oil can be more uniformly coated between the shuttle body and the inner shuttle shell.

Optionally, a yarn frame is mounted on the machine body, and an upper yarn disc and a lower yarn disc are arranged on the yarn frame.

By adopting the technical scheme, the yarn frame can be used for placing the bobbin for winding the upper wire and the lower wire.

In summary, the present application includes at least one of the following beneficial technical effects:

the lower thread enters the rotating shuttle through the threading shaft without installing a bobbin for placing the lower thread, the lower thread is directly sent into the machine body from the outside of the machine body, the lower thread on the upper inner part of the bobbin does not need to be frequently replaced, and the sewing efficiency of the sewing machine is improved;

the guide sleeve can guide the lower thread to enter the threading shaft, so that the probability of breakage caused by friction of the lower thread on the threading shaft is reduced;

the oil delivery assembly can deliver lubricating oil between the shuttle body and the inner shuttle shell, so that the rotation between the shuttle body and the inner shuttle shell is smoother;

the yarn frame can conveniently place around establishing the spool of going up the line and around establishing the line down.

Drawings

FIG. 1 is a schematic view of an overall structure of the embodiment.

FIG. 2 is a cross-sectional view of an overall structure of the embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is an exploded view of a rotary shuttle according to an embodiment.

FIG. 6 is a sectional view showing the whole structure of the second embodiment.

Fig. 7 is an enlarged view of the portion C in fig. 6.

Description of reference numerals: 1. a body; 101. a platen; 102. mounting the case; 103. a lower chassis; 2. a lower shaft; 21. an installation part; 22. a connecting portion; 3. a rotating shuttle; 31. a shuttle body; 32. an inner bobbin case; 33. an outer bobbin case; 4. a yarn threading shaft; 41. threading a yarn hole; 5. mounting a column; 6. a fixing member; 61. a screw section; 62. an abutting portion; 7. connecting holes; 8. a yarn outlet hole; 9. a guide groove; 10. a guide piece; 11. a guide sleeve; 12. an oil delivery assembly; 121. a sleeve; 122. a delivery tubing; 123. an oil delivery channel; 1231. a spiral conveying pipe; 1232. an inner pipeline; 1233. connecting the oil duct; 13. an oil distributing groove; 14. a yarn frame; 15. winding a wire coil; 16. winding a wire coil; 17. a guide member; 18. a fixed mount; 19. a drive mechanism; 191. a rotating shaft; 192. a first bevel gear; 193. a first bevel gear; 20. and (7) oil sealing.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

A shuttleless sewing machine, referring to fig. 1, comprises a machine body 1, wherein the machine body 1 comprises a platen 101, an upper machine box 102 and a lower machine box 103, the upper machine box 102 and the lower machine box 103 are respectively and fixedly connected with the upper end surface and the lower end surface of the platen 101, and the platen 101 is fixedly connected with a fixed frame 18 for supporting.

The first embodiment is as follows:

a no-bobbin sewing machine, refer to fig. 2-3, the body 1 is rotatably connected with the lower shaft 2, one end of the lower shaft 2 is connected with the rotating shuttle 3, the upper box body is provided with a crochet hook corresponding to the rotating shuttle 3, the upper box body 102 is provided with a driving motor, a driving mechanism 19 is arranged between the driving motor and the lower shaft 2, the driving mechanism 19 is arranged at one end of the lower shaft 2 far away from the rotating shuttle 3, the driving mechanism 19 comprises a rotating shaft 191 rotatably arranged in the body 1, a first bevel gear 192 arranged on the rotating shaft 191 and a second bevel gear 193 arranged on the lower shaft 2, the second bevel gear 193 is provided with a mounting sleeve, a bolt is rotatably arranged on the mounting sleeve, the second bevel gear 193 is fixedly arranged on the lower shaft 2 through the bolt, the rotating shaft 191 is connected with the driving motor, the first bevel gear 192 and the second bevel gear 193 are mutually kneaded, the rotating shaft 191, thereby first bevel gear 192 rotates and drives second bevel gear 193 and rotate and drive lower shaft 2 and rotate, the inside coaxial wearing of lower shaft 2 is equipped with the threading axle 4, threading axle 4 runs through lower shaft 2, 4 one ends of threading axle penetrate in rotating shuttle 3 the other end wear out the machine case 103 outside, threading hole 41 has been seted up along 4 length direction of threading axle in the center of threading axle 4, it passes through in 4 entering rotating shuttle 3 of threading axle to roll off the production line, need not to install the bobbin of placing the production line, the direct organism 1 of sending into from organism 1 outside of rolling off the production line, need not frequently to change the production line in the bobbin, the sewing efficiency of sewing machine is promoted.

Referring to fig. 2 and 4, the rotary shuttle 3 includes a shuttle body 31 fixedly arranged on the lower shaft 2, an inner shuttle shell 32 arranged in the shuttle body 31 and rotating with the shuttle body 31, and an outer shuttle shell 33 arranged in the inner shuttle shell 32 and fixed with the inner shuttle shell 32, a shuttle point is fixedly arranged on the shuttle body 31, and one end of the threading shaft 4 far away from the machine body 1 is connected on the inner shuttle shell 32 by screw thread; the driving motor drives the lower shaft 2 to rotate, so as to drive the shuttle body 31 to rotate, the inner shuttle shell 32 is provided with a clamping groove, the outer shuttle shell 33 is fixedly provided with a clamping block matched with the clamping groove, the inner shuttle shell 32 and the outer shuttle shell 33 are mutually fixed through the clamping groove and the clamping block, and the inner shuttle shell 32 and the outer shuttle shell 33 are fixed on the machine body 1 through installing a positioning hook.

Referring to fig. 4 and 5, the lower shaft 2 includes a mounting portion 21 mounted on the platen 101 and rotating on the body 1 and a connecting portion 22 integrally formed on the mounting portion 21, a mounting frame is fixedly disposed on the platen 101, the mounting portion 21 is rotatably disposed on the mounting frame, a mounting sleeve is disposed on the rotating shuttle 3, the mounting sleeve is sleeved on the connecting portion and is provided with a bolt, the connecting portion 22 is fixed to the rotating shuttle 3 through the bolt, the diameter of the connecting portion 22 is larger than that of the mounting portion 21, an oil delivery assembly 12 is disposed on the connecting portion 22, and the oil delivery assembly 12 can deliver lubricating oil between the shuttle body 31 and the inner shuttle shell 32, so that the rotation between the shuttle body 31 and the inner shuttle shell 32 is smoother; the oil delivery assembly 12 comprises a sleeve 121 sleeved on the mounting part 21, an oil delivery pipe 122 mounted on the sleeve 121, and an oil delivery channel 123 arranged on the connecting part 22, wherein one end of the oil delivery pipe 122, which is far away from the sleeve 121, penetrates through the bedplate 101, one side of the oil delivery pipe 122, which penetrates through the bedplate 101, is flush with the bedplate 101, and is inserted with a plug, the plug can prevent dust from entering when oil is not injected, the oil delivery pipe comprises a spiral delivery pipe 1231 arranged on the surface of the connecting part 22 and an inner through pipe 1232 arranged in the connecting part 22, the sleeve 121 covers the spiral delivery pipe 1231 and is arranged in a gap with the mounting sleeve of the shuttle body 31, the friction loss between the sleeve 121 and the shuttle body 31 can be reduced, the oil delivery pipe is communicated with the interiors of the shuttle body 31, lubricating oil is delivered into the inner through pipe 1232 along the spiral delivery pipe 1231 by rotating the lower shaft 2, and the lubricating oil is delivered between the shuttle, the smoothness of rotation between the shuttle body 31 and the inner shuttle shell 32 is ensured, and the sewing efficiency is improved; the inside of the shuttle body 31 is provided with the plurality of oil distributing grooves 13, the oil distributing grooves 13 are arc caulking grooves, and the oil distributing grooves 13 can divide the lubricating oil entering between the shuttle body 31 and the inner shuttle shell 32 into a plurality of parts, so that the lubricating oil can be more uniformly coated between the shuttle body 31 and the inner shuttle shell 32, and the phenomenon that the local part has no lubricating oil and the rotation is not smooth is avoided.

Referring to fig. 5, a mounting post 5 is fixedly arranged in an inner bobbin case 32, a fixing member 6 is arranged on an outer bobbin case 33 in a penetrating manner, the fixing member 6 comprises a screw part 61 penetrating through the outer bobbin case 33 and connected to the mounting post 5 in a threaded manner and an abutting part 62 fixedly arranged at one end of the screw part 61 far away from the mounting post 5, the abutting part 62 abuts against the outer bobbin case 33 at one side of the outer bobbin case 33 far away from the inner bobbin case 32, a connecting hole 7 is formed in the mounting post 5 along the axial direction of the mounting post 5, a yarn outlet hole 8 is formed in the fixing member 6 along the axial direction of the screw part 61, the connecting hole 7 is communicated with the yarn outlet hole 8 and a yarn penetrating hole 41, the fixing member 6 can reinforce the outer bobbin case 33 on the inner bobbin case 32 on one hand, and can; a plurality of guide grooves 9 are circumferentially formed in one side, away from the outer bobbin case 33, of the abutting part 62, the guide grooves 9 can guide the lower thread and can provide clamping grooves for clamping the bolt cutters for tightening the fixing part 6; the outer bobbin case 33 deviates from the inner bobbin case 32 and is provided with the guide piece 10, the guide piece 10 is fixedly installed on the outer bobbin case 33 through a bolt, a hooking part is fixed on the guide piece 10 and is used for hooking a lower thread, the lower thread penetrates through the thread penetrating shaft 4 through the thread penetrating hole 41 and then penetrates out of the rotating shuttle 3 through the connecting hole 7 and the thread outlet hole 8, the lower thread is guided to be hooked on the hooking part through the guide groove 9 and the guide piece 10, and the upper thread and the lower thread are sewn through the hook needle on the upper box body in the matching of the shuttle point installed on the bobbin body 31.

Referring to fig. 1 and 2, the end, far away from the rotating shuttle 3, of the threading shaft 4 is sleeved with a guide sleeve 11, the guide sleeve 11 is embedded on the lower case 103 and is fixed on the lower case 103 through bolts, a round chamfer is arranged at an opening of the guide sleeve 11, the round chamfer can reduce the probability of friction fracture during offline conveying, and meanwhile, the embedded guide sleeve 11 can reduce the probability of damage caused by external force impact.

Referring to fig. 1, a yarn frame 14 is mounted on a machine body 1, an upper coil disc 15 and a lower coil disc 16 are arranged on the yarn frame 14, and the yarn frame 14 can be used for placing bobbins on which upper yarns and lower yarns are wound; the upper case 102 is provided with a guide member 17 such as a wire clamp and a wire hook, and the guide member 17 guides the upper wire and the lower wire to smoothly penetrate through the crochet hook, so that the lower wire can smoothly penetrate into the yarn penetrating shaft 4.

The implementation principle of the embodiment of the application is as follows: placing an upper thread cylinder and a lower thread cylinder on a thread frame 14, guiding an upper thread into a crochet hook through a guide member 17, guiding a lower thread into a threading shaft 4 through the guide member 17, leading the lower thread through a threading hole 41, a connecting hole 7 and a thread outlet hole 8, then passing through a guide groove 9 and a guide sheet 10 and hooking on a hooking part of the guide sheet 10, driving the upper thread to enter a rotating shuttle 3 by the crochet hook, rotating a shuttle body 31, and driving the upper thread to be matched with the lower thread to be sewed under the rotation of the shuttle body 31; when the sewing machine is left for a long time or the lubricating oil between the shuttle body 31 and the inner bobbin case 32 is used up after use, the oil feed pipe 122 is filled with the lubricating oil, the lubricating oil enters the oil feed pipe through the oil feed pipe 122, the lubricating oil is spirally fed in the spiral feed pipe 1231 of the oil feed pipe under the rotation of the lower shaft 2, and then enters between the shuttle body 31 and the inner bobbin case 32 through the inner through pipe 1232 to lubricate the shuttle body 31 and the inner bobbin case 32.

Example two:

a shuttleless sewing machine is different from the first embodiment in that an oil feed unit 12 is provided.

Referring to fig. 6-7, the oil delivery assembly 12 includes a sleeve 121 disposed on the mounting portion 21, an oil delivery pipe 122 disposed on the sleeve 121, and an oil delivery passage 123 disposed on the connecting portion 22, wherein an end of the oil delivery pipe 122 away from the sleeve 121 penetrates the bedplate 101, the oil delivery pipe 122 penetrates one side of the bedplate 101 to be flush with the bedplate 101, and is plugged with a plug, the plug can prevent dust from entering when oil is not injected, the oil delivery passage includes a spiral delivery pipe 1231 disposed on a surface of the connecting portion 22 and a connecting oil passage 1233 disposed on a surface of the connecting portion 22, the sleeve 121 covers the spiral delivery pipe 1231 and is disposed in a gap with the mounting sleeve of the shuttle body 31, the gap is disposed to reduce friction loss between the sleeve 121 and the shuttle body 31, the oil delivery pipe communicates with the interior of the shuttle body 31, lubricating oil is delivered to the connecting oil passage 1233 along the spiral delivery pipe 1231 by rotation of the lower shaft 2, and the lubricating oil is delivered between, the smoothness of rotation between the shuttle body 31 and the inner shuttle shell 32 is ensured, and the sewing efficiency is improved; be provided with oil blanket 20 between installation cover and the sleeve 121, oil blanket 20 is rubber circle and joint on the installation cover, and oil blanket 20 is kept away from rubber blanket one side in the laminating of sleeve 121, and oil blanket 20 can prevent that lubricating oil from leaking outward, and oil blanket 20 has certain deformability simultaneously, even appear wearing and tearing still can guarantee through deformation that sealing between sleeve 121 and the installation cover.

The implementation principle of the embodiment of the application is as follows: placing an upper thread cylinder and a lower thread cylinder on a thread frame 14, guiding an upper thread into a crochet hook through a guide member 17, guiding a lower thread into a threading shaft 4 through the guide member 17, leading the lower thread through a threading hole 41, a connecting hole 7 and a thread outlet hole 8, then passing through a guide groove 9 and a guide sheet 10 and hooking on a hooking part of the guide sheet 10, driving the upper thread to enter a rotating shuttle 3 by the crochet hook, rotating a shuttle body 31, and driving the upper thread to be matched with the lower thread to be sewed under the rotation of the shuttle body 31; when the sewing machine is left for a long time or the lubricating oil between the shuttle body 31 and the inner bobbin case 32 is used up after use, the lubricating oil is filled into the oil delivery pipe 122, the lubricating oil enters the oil delivery pipeline through the oil delivery pipe 122, the lubricating oil is spirally delivered in the spiral delivery pipe 1231 of the oil delivery pipeline under the rotation of the lower shaft 2, and then enters between the shuttle body 31 and the inner bobbin case 32 through the connecting oil passage 1233 to lubricate the shuttle body 31 and the inner bobbin case 32.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a no shuttle heart sewing machine, includes organism (1), the organism (1) internal rotation is connected with lower axle (2), rotating shuttle (3), its characterized in that are connected to lower axle (2) one end: the spinning shaft (4) coaxially penetrates through the inner part of the lower shaft (2), the spinning shaft (4) penetrates through the lower shaft (2), one end of the spinning shaft (4) penetrates into the rotating shuttle (3) and the other end penetrates out of the machine body (1), and a spinning hole (41) is formed in the center of the spinning shaft (4) along the length direction of the spinning shaft (4).

2. The shuttleless sewing machine as claimed in claim 1, wherein: the rotating shuttle (3) comprises a shuttle body (31), an inner shuttle shell (32) and an outer shuttle shell (33), the shuttle body (31) is fixedly arranged on the lower shaft (2), the inner shuttle shell (32) is arranged in the shuttle body (31) and rotates with the shuttle body (31), the outer shuttle shell (33) is arranged in the inner shuttle shell (32) and is fixed with the inner shuttle shell (32), and one end, far away from the machine body (1), of the yarn threading shaft (4) is in threaded connection with the inner shuttle shell (32).

3. The shuttleless sewing machine as claimed in claim 2, wherein: the novel bobbin thread fixing device is characterized in that a mounting column (5) is fixedly arranged in the inner bobbin case (32), a fixing piece (6) penetrates through the outer bobbin case (33), the fixing piece (6) comprises a screw rod portion (61) and a butting portion (62), the screw rod portion (61) penetrates through the outer bobbin case (33) and is connected to the mounting column (5) in a threaded mode, the butting portion (62) is fixedly arranged at one end, away from the mounting column (5), of the screw rod portion (61), the butting portion (62) is abutted to one side, away from the inner bobbin case (32), of the outer bobbin case (33), a connecting hole (7) is formed in the mounting column (5) in the axis direction of the mounting column (5), a yarn outlet hole (8) is formed in the fixing piece (6) in the axis direction of the screw rod portion (61), and the connecting hole (7) is communicated with the yarn outlet hole (8) and a yarn.

4. A shuttleless sewing machine as claimed in claim 3, characterized in that: and a plurality of guide grooves (9) are formed in the circumferential direction of one side of the abutting part (62) departing from the outer shuttle shell (33).

5. The shuttleless sewing machine as claimed in claim 4, wherein: and a guide piece (10) is arranged on one side of the outer shuttle shell (33) departing from the inner shuttle shell (32).

6. The shuttleless sewing machine as claimed in claim 5, wherein: one end of the threading shaft (4) far away from the rotating shuttle (3) is sleeved with a guide sleeve (11).

7. The shuttleless sewing machine as claimed in claim 1, wherein: lower shaft (2) are including installation department (21) and connecting portion (22), installation department (21) are installed on organism (1) and are rotated on organism (1), connecting portion (22) integrated into one piece is on installation department (21), and connecting portion (22) are fixed with rotating shuttle (3), and the diameter of connecting portion (22) is greater than installation department (21), is provided with oil transportation subassembly (12) on connecting portion (22).

8. The shuttleless sewing machine as claimed in claim 7, wherein: the oil conveying assembly (12) comprises a sleeve (121), an oil conveying pipe (122) and an oil conveying channel (123), the sleeve (121) is sleeved on the mounting portion (21), the oil conveying pipe (122) is mounted on the sleeve (121), the oil conveying channel (123) is arranged on the connecting portion (22), and the oil conveying channel (123) is communicated with the inside of the oil conveying pipe (122) and the shuttle body (31).

9. The shuttleless sewing machine as claimed in claim 8, wherein: the shuttle body (31) is internally provided with a plurality of oil distributing grooves (13).

10. The shuttleless sewing machine as claimed in claim 1, wherein: a yarn frame (14) is installed on the machine body (1), and an upper coil disc (15) and a lower coil disc (16) are arranged on the yarn frame (14).