CN213203400U

CN213203400U - Rotating shuttle mechanism of sewing machine and sewing machine

Info

Publication number: CN213203400U
Application number: CN202021638659.7U
Authority: CN
Inventors: 梁月茂
Original assignee: Huizhou Yuemao Daily Necessities Co ltd
Current assignee: Huizhou Yuemao Daily Necessities Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-14
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a rotating shuttle mechanism of a sewing machine and the sewing machine, the rotating shuttle mechanism comprises a shuttle frame and a rotating shuttle, the rotating shuttle is sleeved outside the shuttle frame, and the rotating shuttle can be rotatably arranged on the shuttle frame; the bobbin core of the shuttle frame is provided with a first through hole which is a straight hole, and the bottom thread of the sewing machine can pass through the first through hole to reach the position between the shuttle frame and the rotating shuttle. The sewing machine comprises a rotating shuttle mechanism, a rack, a lower main shaft and an upper machine body, wherein the lower main shaft and the upper machine body are both arranged on the rack, the rotating shuttle mechanism is arranged at the front end of the lower main shaft, and the lower main shaft drives the rotating shuttle to rotate on a shuttle frame. The utility model discloses can set up the bobbin thread coil in the outside of rotating shuttle mechanism, place the bobbin of big book to can continuously supply the bobbin thread, avoided frequent new shuttle cover of change to supply the bobbin thread, thereby improve the efficiency of making up, also can improve sutural quality.

Description

Rotating shuttle mechanism of sewing machine and sewing machine

Technical Field

The utility model relates to a mechanical technical field is made up to the clothing, concretely relates to sewing machine's rotating shuttle mechanism and sewing machine.

Background

With the improvement of science and technology and the improvement of living standard, the automatic equipment of all walks of life uses and popularizes in a large number, for example, the sewing machine of clothing trade, can realize the quick sewing of clothes through the sewing machine, make up efficiency greatly to traditional manual work and improve. The bottom thread of the existing sewing machine is hinged to be matched with the upper thread through the rotating shuttle mechanism to realize sewing of clothes, but the bottom thread is generally supplied through the shuttle sleeve in the rotating shuttle mechanism, the volume of the rotating shuttle mechanism is limited, the space for accommodating the shuttle sleeve in the rotating shuttle mechanism is limited, so that the number of the bottom threads which can be accommodated on the shuttle sleeve is limited, the bottom thread needs to be frequently replaced by a new shuttle sleeve to supplement the bottom thread when the clothes are sewn, the sewing efficiency is influenced, and the thread end is easily formed on the clothes to influence the sewing quality.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a sewing machine's that can solve rotating shuttle mechanism and sewing machine to current rotating shuttle mechanism and sewing machine can not continuously supply with the technical problem of bottom line among the background art.

In order to solve the technical problem, the technical scheme of the utility model is that: a rotating shuttle mechanism of a sewing machine comprises a shuttle frame and a rotating shuttle, wherein the rotating shuttle is sleeved outside the shuttle frame and is rotatably arranged on the shuttle frame; the bobbin core of the shuttle frame is provided with a first through hole which is a straight hole, and the bottom thread of the sewing machine can pass through the first through hole to reach the position between the shuttle frame and the rotating shuttle.

Further, the first through hole is arranged at the axial center position of the shaft core.

Furthermore, a third through hole is further formed in the side wall of the shaft core and communicated with the first through hole, and a bottom thread of the sewing machine can penetrate into the first through hole from one side and penetrate out of the third through hole.

In addition, the sewing machine comprising the rotating shuttle mechanism comprises the rotating shuttle mechanism, a rack, a lower main shaft and an upper machine body, wherein the lower main shaft and the upper machine body are arranged on the rack, the rotating shuttle mechanism is arranged at the front end of the lower main shaft, and the lower main shaft drives the rotating shuttle to rotate on the shuttle rack.

Further, a second through hole is axially formed in the lower spindle and communicated with the first through hole; the lower thread of the sewing machine may be passed through the second through hole and the first through hole to the front side of the shuttle frame.

Further, the lower spindle comprises a shaft rod and a rotating sleeve, the rotating sleeve is rotatably sleeved on the periphery of the shaft rod, the second through hole is formed in the shaft rod, the shuttle frame is connected to the shaft rod, and the rotating shuttle is connected to the rotating sleeve.

Furthermore, a lower engine room is arranged in the frame, and the rotating shuttle mechanism is arranged in the lower engine room; the lower cabin is provided with an upper opening door, a side opening door and an illuminating lamp, the upper opening door is arranged on a working table surface of the rack, the side opening door is arranged on one side of the lower cabin, and the illuminating lamp is arranged inside the lower cabin.

The bobbin winder further comprises a bobbin holder, the bobbin holder is arranged on the rack or the upper machine body, a bobbin can be placed on the bobbin holder, and the bobbin can continuously supply threads for the rotating shuttle mechanism.

Further, still include bottom line elasticity adjusting part, bottom line elasticity adjusting part sets up in the frame or on the last organism, bottom line elasticity adjusting part can adjust the elasticity of sewing machine bottom line.

Further, the bottom line tightness adjusting assembly comprises a stud, a clamping piece, a spring and a nut, a through hole for the bottom line to pass through is formed in the stud, the clamping piece and the spring are sequentially sleeved on the stud, and the nut is screwed on the stud and one side of the clamping piece is far away from the spring.

The utility model discloses the beneficial effect who realizes mainly has following several: the bobbin bracket of the rotating shuttle mechanism is provided with the first through hole to convey the bottom thread, the bottom thread coil can be arranged outside the rotating shuttle mechanism, the space outside the rotating shuttle mechanism is large, and the large coil of thread can be placed, so that the bottom thread can be continuously supplied, frequent replacement of a new bobbin sleeve to supplement the bottom thread is avoided, the sewing efficiency is improved, and the sewing quality can be improved. In addition, the first through hole is a straight hole, so that the bottom line can pass through the first through hole more easily, and the threading operation is facilitated; and the straight hole enables the bottom thread to be smoothly conveyed through the first through hole, the conveying resistance is small, the smoothness of the work of the sewing machine is guaranteed, and the thread breakage caused by the resistance of the bottom thread is avoided. The utility model discloses a sewing machine uses foretell rotating shuttle mechanism, also can realize not needing frequently to change the shuttle cover when sewing up the cloth, can improve the efficiency of making up, can improve sutural quality.

Drawings

Fig. 1 is a schematic perspective view of a shuttle frame of a rotating shuttle mechanism according to an embodiment of the present invention;

fig. 2 is a schematic longitudinal sectional structure view of a shuttle frame of a rotary shuttle mechanism according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a rotating shuttle mechanism according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a shuttle frame of a second embodiment of the present invention;

fig. 5 is a schematic view of a partial longitudinal cross-sectional structure of a sewing machine according to a third embodiment of the present invention (the frame is longitudinally cut, and the upper body is not cut);

fig. 6 is a schematic structural view of a bottom thread tightness adjusting assembly of a sewing machine according to a third embodiment of the present invention.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Referring to fig. 1 to 3, a rotating shuttle mechanism of a sewing machine is used for outputting a bottom thread of the sewing machine and matching with an upper thread to realize sewing of a garment. The rotating shuttle mechanism comprises a shuttle frame 11 and a rotating shuttle 12, wherein the shuttle frame 11 is used for installing the rotating shuttle 12, the outer diameter of the shuttle frame 11 is consistent with the inner diameter of the rotating shuttle 12, so that the rotating shuttle 12 can be just sleeved on the outer side of the shuttle frame 11 and can rotate on the shuttle frame 11, a bottom thread and an upper thread are hinged together, and the cloth is sewn together. The bobbin 111 of the shuttle frame 11 is provided with a first through hole 112, and a bobbin thread of the sewing machine can pass through the first through hole 112 to pass from the rear side of the shuttle frame 11 to the front side of the shuttle frame 11, so that the bobbin thread can be supplied through a thread coil outside the rotating shuttle mechanism and at the rear side of the shuttle frame 11, and is conveyed to the front side of the shuttle frame 11 through the first through hole 112 on the shuttle frame 11, and the bobbin thread and a surface thread are hinged together through the rotating shuttle 12 at the front side of the shuttle frame 11 to sew up cloth. The first through hole 112 is formed in the shuttle frame 11 to convey the bobbin thread, the bobbin thread coil can be arranged outside the rotating shuttle mechanism, the outer space of the rotating shuttle mechanism is large, and the bobbin thread coil with a large coil can be placed, so that the bobbin thread can be continuously supplied, frequent replacement of a new shuttle sleeve to supplement the bobbin thread is avoided, the sewing efficiency is improved, and the sewing quality is also improved. In addition, the first through hole 112 is a straight hole, so that the bottom line can pass through the first through hole 112 more easily, and the threading operation is convenient; and the straight hole enables the bottom thread to be smoothly conveyed in the first through hole 112, the conveying resistance is small, the smooth work of the sewing machine is ensured, and the thread breakage caused by the resistance of the bottom thread is avoided.

Referring to fig. 1 and 2, as a further preferred embodiment, the first through hole 112 is preferably disposed at an axial center position of the shaft core 111, so that the bottom thread is less affected by abrasion of the sidewall of the first through hole 112 when the rotating shuttle 12 rotates on the shuttle frame 11, the bottom thread is not easily abraded, the bottom thread is prevented from being broken, continuous and stable operation of the sewing machine can be ensured, and the work efficiency of the sewing machine can be ensured.

Example two

Referring to fig. 4, the overall structure of the rotating shuttle mechanism in the embodiment is the same as that in the first embodiment, on the basis of the first embodiment, a third through hole 113 is further formed in the side wall of the shaft core 111, and the third through hole 113 is communicated with the first through hole 112, so that a bobbin thread can penetrate through the front side of the first through hole 112 during threading, penetrate through the third through hole 113, and then be guided between the shuttle frame 11 and the rotating shuttle 12, and the bobbin thread and the upper thread are hinged together by rotation of the rotating shuttle, so that the cloth is sewn together. By adopting the mode to penetrate through the bottom thread, the threading distance of the bottom thread in the sewing machine or the rotating shuttle mechanism is shorter, and the threading is easier.

EXAMPLE III

Referring to fig. 1 to 6, in the present embodiment, based on the first or second embodiment, a sewing machine using a rotating shuttle mechanism in the first embodiment is provided, and the following description is given by taking a sewing machine based on the rotating shuttle mechanism in the first embodiment as an example, the sewing machine includes a rotating shuttle mechanism 1, a frame 2, a lower spindle 3 and an upper machine body 4, the rotating shuttle mechanism 1 is the rotating shuttle mechanism in the first embodiment, the frame 2 is provided with various parts of the sewing machine, the lower spindle 3 and the upper machine body 4 are both arranged on the frame 2, the lower spindle 3 is horizontally arranged below a workbench of the frame 2, the upper machine body 4 is arranged on the workbench of the frame 2, the rotating shuttle mechanism 1 is arranged at a front end of the lower spindle 3, and the lower spindle 3 drives a rotating shuttle 12 to rotate on the shuttle frame 11 to cooperate with an upper thread output by the upper machine body 4, thereby realizing sewing of a cloth.

Referring to fig. 5, as a further preferred solution, it is preferable that a second through hole 31 is axially formed in the lower spindle 3, the second through hole 31 is communicated with the first through hole 112, and the bobbin thread of the sewing machine can pass through the second through hole 31 and the first through hole 112 to reach the front side of the shuttle frame 11, so that the bobbin thread coil is arranged at the rear side of the lower spindle 3, further away from the rotating shuttle mechanism 1, and a more sufficient space is provided for accommodating the bobbin thread coil 8 of a larger coil, thereby ensuring the long-time continuous supply of the bobbin thread, reducing the frequency of replacing the bobbin thread coil, and improving the working efficiency of the sewing machine.

Referring to fig. 5, the lower spindle 3 may have the following structure: the bobbin thread. The rotating shuttle 12 is connected to the rotating sleeve 33, so that the rotating shuttle 12 is driven to rotate on the shuttle frame 11 by the rotation of the rotating sleeve 33 on the shaft 32. The rotation of the rotating sleeve 33 on the shaft 32 can be realized by a common rotation driving mechanism such as a motor, a rotating pedal (not shown in the figure) and the like.

Referring to fig. 5, as a further preferred solution, a lower nacelle 21 is disposed in the frame 2 for receiving the rotating shuttle mechanism 1. In order to facilitate threading of a bottom line on the rotating shuttle mechanism 1, the lower cabin 21 is provided with an upper opening door 211, a side opening door 212 and an illuminating lamp 213, the upper opening door 211 is arranged on the working platform 22 of the frame 2, the side opening door 212 is arranged on one side of the lower cabin 21, the illuminating lamp 213 is arranged inside the lower cabin 21, the upper opening door 211 and the side opening door 212 can be opened during threading, two hands respectively extend into the lower cabin 21 from the upper opening door 211 and the side opening door 212, the illuminating lamp 213 is opened, and the bottom line can be more easily led out from the first through hole 112 by matching of the two hands, so that the threading efficiency is improved.

Referring to fig. 5, a bobbin 5 is further included to receive a bobbin thread spool 8 which continuously feeds thread to the rotating shuttle mechanism 1. The bobbin holder 5 is disposed on the frame 2 or the upper body 4, and in this embodiment, the bobbin holder 5 is disposed on the upper body 4, so that the bobbin 8 is higher in position and more convenient to replace. The upper body 4 is further provided with a guide roller 51, and the table top of the frame 2 is provided with a vertical through hole 52, so that the bottom thread 7 led out from the thread coil 8 is guided by the guide roller 51, passes through the vertical through hole 52 to the lower part of the table top of the frame 2, is led into the second through hole 31 of the shaft lever 32, and finally passes out of the front side of the first through hole 112 of the shuttle frame 11. For threading convenience, a threading needle may be further provided, and the bobbin thread 7 is passed through the vertical through hole 52 and the first and second through

holes

112 and 31 by the threading needle.

As a further preferred solution, with reference to fig. 5 and 6, a bobbin thread slack adjuster assembly 6 is preferably further provided, said bobbin thread slack adjuster assembly 6 being arranged on the transport path of the bobbin thread 7, which may be arranged on the frame 2 or on the upper body 4, in this embodiment on the upper body 4. The tightness of the bottom thread of the sewing machine is adjusted through the bottom thread tightness adjusting assembly 6, so that the proper tightness of the bottom thread 7 of the sewing machine is ensured, and the sewing quality is ensured.

Referring to fig. 5 and 6, the bobbin thread take-up unit 6 may be constructed as follows: including double-screw bolt 61, clamping piece 62, spring 63 and nut 64, be provided with the perforation 611 that supplies the bottom line to pass on the double-screw bolt 61, double-screw bolt 61 is fixed on last organism 4, clamping piece 62 and spring 63 overlap in proper order and establish on double-screw bolt 61, nut 64 spiro union spring 63 keeps away from one side of clamping piece 62 on double-screw bolt 61. So that when the bobbin thread 7 passes through the through hole 611, the clip 62 presses the bobbin thread 7 against one end of the through hole 611 by the elastic action of the spring 63, so that the bobbin thread 7 maintains a constant degree of tightness; when the tightness of the bottom thread 7 needs to be adjusted, the nut 64 can be screwed to loosen or tighten the spring 63, so that the pressure of the clamping piece 62 on the bottom thread 7 is adjusted, and the tightness of the bottom thread 7 is adjusted.

The sewing machine based on the rotating shuttle mechanism of the second embodiment has a simpler structure, the main shaft 3 can adopt a simpler structure, the main shaft 3 does not need to penetrate a bottom line, can be directly arranged into a solid rod-shaped structure, and can drive the rotating shuttle to rotate. The bobbin thread is directly led to the front side of the first through hole 111 of the shuttle frame 11 from the bobbin 5, penetrates into the first through hole 111 and then penetrates out from the third through hole 113.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The rotating shuttle mechanism of the sewing machine is characterized in that: the rotating shuttle hook comprises a shuttle frame (11) and a rotating shuttle (12), wherein the rotating shuttle (12) is sleeved on the outer side of the shuttle frame (11), and the rotating shuttle (12) is rotatably arranged on the shuttle frame (11); a first through hole (112) is formed in a shaft core (111) of the shuttle frame (11), the first through hole (112) is a straight hole, and a bottom thread of the sewing machine can penetrate through the first through hole (112) to reach a position between the shuttle frame (11) and the rotating shuttle (12).

2. The rotating shuttle mechanism of a sewing machine according to claim 1, characterized in that: the first through hole (112) is arranged at the axial center position of the shaft core (111).

3. The rotating shuttle mechanism of a sewing machine according to claim 2, characterized in that: the side wall of the shaft core (111) is also provided with a third through hole (113), the third through hole (113) is communicated with the first through hole (112), and a bottom thread of the sewing machine can penetrate through the first through hole (112) and penetrate out of the third through hole (113).

4. A sewing machine comprising a rotary shuttle mechanism according to any one of claims 1 to 3, characterized in that: the rotating shuttle mechanism comprises a rotating shuttle mechanism (1), a rack (2), a lower main shaft (3) and an upper machine body (4), wherein the lower main shaft (3) and the upper machine body (4) are both arranged on the rack (2), the rotating shuttle mechanism (1) is arranged at the front end of the lower main shaft (3), and the lower main shaft (3) drives a rotating shuttle (12) to rotate on a shuttle frame (11).

5. The sewing machine of claim 4, wherein: a second through hole (31) is axially formed in the lower spindle (3), and the second through hole (31) is communicated with the first through hole (112); the lower thread of the sewing machine can be passed through the second through hole (31) and the first through hole (112) to the front side of the shuttle frame (11).

6. The sewing machine of claim 5, wherein: the lower spindle (3) comprises a shaft rod (32) and a rotating sleeve (33), the rotating sleeve (33) is rotatably sleeved on the periphery of the shaft rod (32), the second through hole (31) is formed in the shaft rod (32), the shuttle frame (11) is connected to the shaft rod (32), and the rotating shuttle (12) is connected to the rotating sleeve (33).

7. The sewing machine of claim 6, wherein: a lower cabin (21) is arranged in the rack (2), and the rotating shuttle mechanism (1) is arranged in the lower cabin (21); lower cabin (21) are provided with upward door (211), side door (212) and light (213), upward door (211) sets up on table surface (22) of frame (2), side door (212) set up the one side in cabin (21) down, light (213) set up under inside cabin (21).

8. The sewing machine of claim 7, wherein: the bobbin winder further comprises a bottom thread frame (5), the bottom thread frame (5) is arranged on the rack (2) or the upper machine body (4), a bottom thread roll can be placed on the bottom thread frame (5), and the bottom thread roll continuously supplies threads for the rotating shuttle mechanism (1).

9. The sewing machine of claim 8, wherein: still include bottom line elasticity adjusting part (6), bottom line elasticity adjusting part (6) set up on frame (2) or on last organism (4), the elasticity of sewing machine bottom line can be adjusted in bottom line elasticity adjusting part (6).

10. The sewing machine of claim 9, wherein: bottom line slack adjustment subassembly (6) include double-screw bolt (61), clamping piece (62), spring (63) and nut (64), be provided with on double-screw bolt (61) and supply perforation (611) that the bottom line passed, clamping piece (62) and spring (63) overlap in proper order and establish on double-screw bolt (61), one side that clamping piece (62) were kept away from in spring (63) is gone up in double-screw bolt (61) to nut (64) spiro union.