CN112080866A

CN112080866A - Sewing machine with function of automatically replacing bottom coil

Info

Publication number: CN112080866A
Application number: CN202011002990.4A
Authority: CN
Inventors: 谭兆
Original assignee: Jinan Huichuan Clothing Co Ltd
Current assignee: Jinan Huichuan Clothing Co Ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-12-15

Abstract

The invention discloses a sewing machine with a function of automatically replacing a bottom thread loop, which comprises a machine body, wherein a working cavity is arranged in the machine body, a sewing machine rotating shuttle is fixedly arranged on the inner wall of the left side of the working cavity, a bottom thread placing cavity with a right opening is arranged in the sewing machine rotating shuttle, and a first rotating shaft is rotatably arranged on the inner wall of the left side of the bottom thread placing cavity.

Description

Sewing machine with function of automatically replacing bottom coil

Technical Field

The invention relates to the field of garment production equipment, in particular to a sewing machine with a function of automatically replacing a bottom coil.

Background

The garment production equipment is equipment used for designing, cutting, sewing and sizing in the garment production and processing process of the textile industry, and is used as an important machine in the garment production equipment, the sewing machine has wide application on a plurality of production lines, but the existing sewing machine is very inconvenient because a box cover plate is required to be opened to manually replace a bottom line in the use process, and unnecessary damage is caused to users due to the fact that the existing sewing machine touches a needle head with certain probability.

Disclosure of Invention

The invention aims to provide a sewing machine with a function of automatically replacing a bottom coil, and overcomes the condition that the bottom coil of the sewing machine needs to be manually replaced.

The invention is realized by the following technical scheme.

The invention relates to a sewing machine with a function of automatically replacing a bottom coil, which comprises a machine body, wherein a working cavity is arranged in the machine body, a sewing machine rotating shuttle is fixedly arranged on the inner wall of the left side of the working cavity, a bottom thread placing cavity with a right opening is arranged in the sewing machine rotating shuttle, a first rotating shaft is rotatably arranged on the inner wall of the left side of the bottom thread placing cavity, a bottom thread placing wheel with a left end surface contacting with the inner wall of the left side of the bottom thread placing cavity is slidably arranged on the first rotating shaft, a bottom thread winding drum which is slidably connected on the first rotating shaft is arranged between the left end surface and the right end surface of the bottom thread placing wheel, a rotating shuttle cover plate which is slidably connected on the first rotating shaft and is positioned in the bottom thread placing cavity is arranged on the right side of the bottom thread placing wheel, a cover plate switch is rotatably arranged on the right end surface of the rotating shuttle cover plate, when the bottom thread placing wheel needs to be replaced, then, the rotating shuttle cover plate can be pulled out of the bottom line placing cavity, and then the bottom line placing wheel is replaced; a first sliding cavity with an opening facing left is arranged in the inner wall of the right side of the working cavity, a first electromagnet is fixedly arranged on the inner wall of the upper side of the first sliding cavity, a first compression spring is fixedly arranged on the inner wall of the upper side of the first sliding cavity, a first magnetic slide block which is connected in the first sliding cavity in a sliding manner is fixedly arranged at the other end of the first compression spring, a first motor which is connected in the first sliding cavity in a sliding manner is fixedly arranged on the left end face of the first magnetic slide block, a first sliding arrangement block which is positioned in the working cavity is rotatably arranged on the left end face of the first motor, a second sliding cavity with an opening facing left is arranged in the first sliding arrangement block, a second electromagnet is fixedly arranged on the inner wall of the right side of the second sliding cavity, a second compression spring is fixedly arranged on the inner wall of the right side of the second sliding cavity, and a second magnetic slide block which is connected in the, the left end of the second magnetic sliding block is provided with a cover plate pulling-out mechanism positioned in the working cavity, the cover plate pulling-out mechanism comprises a fixed refining stage, a pulling-out working plate is positioned on the left end face of the second magnetic sliding block and on the right side of the sewing machine rotating shuttle, the pulling-out working cavity with an opening facing to the left is arranged in the left end face of the pulling-out working plate, third sliding cavities with opposite openings are symmetrically arranged in the inner walls of the front side and the rear side of the pulling-out working cavity, a third electromagnet is fixedly arranged on the inner wall of the upper side of the third sliding cavity, a third compression spring is fixedly arranged on the inner wall of the lower side of the third sliding cavity, the other end of the third compression spring is fixedly provided with a third magnetic sliding block which is slidably connected in the third sliding cavity, the third magnetic sliding block is close to the side end face of the second magnetic sliding block, a second sliding placing block with an opening facing to the side of the second magnetic sliding block is arranged in the, a second sliding placing block is fixedly arranged on the inner wall of the fourth sliding cavity far away from the second magnetic sliding block, a fourth electromagnet is fixedly arranged on the inner wall of the fourth sliding cavity far away from the second magnetic sliding block, a fourth compression spring is fixedly arranged on the inner wall of the fourth sliding cavity far away from the second magnetic sliding block, and a magnetic clamping block which is connected in the fourth sliding cavity in a sliding mode is fixedly arranged at the other end of the fourth compression spring; a fifth electromagnet is fixedly arranged on the inner wall of the lower side of the first sliding cavity, a fifth compression spring is fixedly arranged on the inner wall of the lower side of the first sliding cavity, a fourth magnetic sliding block which is connected in the first sliding cavity in a sliding manner is fixedly arranged at the other end of the fifth compression spring, the left end of the fourth magnetic sliding block extends into the working cavity and is fixedly provided with a second motor, a second rotating shaft is arranged on the left end surface of the second motor in a rotating manner, a replacing rotating plate is fixedly arranged on the second rotating shaft, two third rotating shafts are symmetrically and vertically arranged on the left end surface of the replacing rotating plate by taking the second rotating shaft as the circle center, a bottom coil replacing mechanism is arranged on each third rotating shaft and comprises a replacing working block fixedly connected on the third rotating shaft, two fifth sliding cavities with openings facing to the left are symmetrically arranged in the left end surface of the replacing working block up and down, fifth slip chamber right side inner wall is gone up to be fixed and is equipped with the sixth electro-magnet, the fixed sixth compression spring that is equipped with on the fifth slip chamber right side inner wall, sixth compression spring other end is fixed and is equipped with sliding connection and is in the fourth slide intracavity take magnetic sliding block, every the fourth slide sliding block is close all be equipped with the opening court in the third rotation axle head left side the sixth slip chamber of third rotation axle side, sixth slip chamber is kept away from the fixed seventh electro-magnet that is equipped with on the third rotation axle side inner wall, the sixth slip chamber is kept away from fixed seventh compression spring that is equipped with on the third rotation axle side inner wall, seventh compression spring other end is fixed and is equipped with and takes magnetism bottom coil clamp splice, initial state, upside two in the bottom coil replacement mechanism take not accompany between the magnetism bottom coil clamp splice the bottom wire place the wheel, downside two in the bottom coil replacement mechanism it is full of to accompany between the magnetism bottom coil clamp splice take the bottom coil to be full of A bobbin for winding the bobbin thread; a fourth motor positioned on the lower side of the sewing machine rotating shuttle is fixedly arranged in the inner wall of the left side of the working cavity, a fourth rotating shaft is arranged on the right end face of the fourth motor in a rotating manner, a winding driving rotating rod is fixedly arranged on the fourth rotating shaft, a third sliding placing block is fixedly arranged on the right end face of the winding driving rotating rod, a seventh sliding cavity with a right opening is arranged in the third sliding placing block, an eighth electromagnet is fixedly arranged on the inner wall of the left side of the seventh sliding cavity, an eighth compression spring is fixedly arranged on the inner wall of the left side of the seventh sliding cavity, a fifth magnetic sliding block in sliding connection with the seventh sliding cavity is fixedly arranged at the other end of the eighth compression spring, a bottom line pre-winding mechanism positioned in the working cavity is arranged at the right end of the fifth magnetic sliding block, and the bottom line pre-winding mechanism comprises a bottom line winding working block fixedly connected with the right end face, a bottom wire winding working cavity with an opening facing right is arranged in the bottom wire winding working cavity, eighth sliding cavities with openings facing the fifth magnetic sliding block side are symmetrically arranged in the inner walls of the upper side and the lower side of the bottom wire winding working cavity, ninth electromagnets are fixedly arranged on the inner walls of the sides of the eighth sliding cavities far away from the fifth magnetic sliding block, ninth compression springs are fixedly arranged on the inner walls of the sides of the eighth sliding cavities far away from the fifth magnetic sliding block, magnetic bottom wire clamping blocks connected in the eighth sliding cavities in a sliding manner are fixedly arranged at the other ends of the ninth compression springs, a ninth sliding cavity located in the inner wall of the bottom wire winding working cavity is arranged on the right side of each eighth sliding cavity, a tenth electromagnet is fixedly arranged on the inner wall of the side of the ninth sliding cavity far away from the fifth magnetic sliding block, and a tenth compression spring is fixedly arranged on the inner wall of the side of the ninth sliding cavity far away from the fifth magnetic sliding block, tenth compression spring other end is fixed to be equipped with sliding connection and is in the magnetic bottom line cutting off block of taking of ninth slip intracavity, the third slides and places a downside and be equipped with fixed connection and place the board in spare bottom line on the inner wall of working chamber downside, spare bottom line is placed the board up end and is rotated and be equipped with the fifth axis of rotation, the cover has spare bottom line in the fifth axis of rotation, under the initial condition, spare bottom line one end is by two take the magnetic bottom line clamp splice to clip.

Preferably, each of the third rotating shafts is rotatably connected at a right end thereof to a third motor fixedly connected to a right end surface of the replacement rotating plate.

Preferably, a distance sensor positioned on the left side of the standby bottom line is fixedly arranged on the inner wall of the left side of the working cavity, and a bottom line supplementary warning lamp is fixedly arranged on the right end face of the machine body.

The invention has the beneficial effects that: according to the invention, the rotating shuttle cover plate in the sewing machine can be automatically taken out through the matching of the electromagnet and the magnetic clamping block, then the used bottom thread placing wheel in the rotating shuttle is clamped out through the magnetic bottom thread clamping block and the placing wheel filled with the bottom thread is replaced, so that the effect of automatically replenishing the bottom thread is achieved, and the effect of automatically replenishing the bottom thread to the used bottom thread placing wheel can be realized through the bottom thread pre-winding mechanism after replacement.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the embodiment of the present invention in the direction of A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of the embodiment of the present invention at B in FIG. 1;

FIG. 4 is an enlarged schematic view of the embodiment of the present invention at C in FIG. 1;

FIG. 5 is a schematic view of the embodiment of the present invention in the direction D-D in FIG. 4.

Detailed Description

The invention will now be described in detail with reference to fig. 1-5, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The sewing machine with the function of automatically replacing the bottom thread loop, which is described in conjunction with the attached drawings 1-5, comprises a machine body 11, a working chamber 71 is arranged in the machine body 11, a sewing machine rotating shuttle 12 is fixedly arranged on the inner wall of the left side of the working chamber 71, a bottom thread placing chamber 72 with an opening facing to the right is arranged in the sewing machine rotating shuttle 12, a first rotating shaft 16 is rotatably arranged on the inner wall of the left side of the bottom thread placing chamber 72, a bottom thread placing wheel 14 with a left end surface contacting with the inner wall of the left side of the bottom thread placing chamber 72 is slidably arranged on the first rotating shaft 16, a bottom thread winding drum 15 slidably connected on the first rotating shaft 16 is arranged between the left end surface and the right end surface of the bottom thread placing wheel 14, a rotating shuttle cover plate 13 slidably connected on the first rotating shaft 16 and positioned in the bottom thread placing chamber 72 is arranged on the right side of the bottom thread placing wheel 14, a cover plate switch 17 is, when the bobbin thread placing wheel 14 needs to be replaced, the cover switch 17 needs to be pulled up to the side away from the rotating shuttle cover 13, then the rotating shuttle cover 13 can be pulled out of the bobbin thread placing cavity 72, and then the replacement of the bobbin thread placing wheel 14 is carried out; be equipped with the opening in the inner wall of working chamber 71 right side and towards left first slip chamber 74, first slip chamber 74 upside inner wall is fixed and is equipped with first electro-magnet 40, first slip chamber 74 upside inner wall is fixed and is equipped with first compression spring 33, first compression spring 33 other end is fixed and is equipped with sliding connection and is in first magnetism sliding block 31 in the first slip chamber 74, first magnetism sliding block 31 left end face is fixed and is equipped with sliding connection and is in first motor 32 in the first slip chamber 74, first motor 32 left end face rotates and is equipped with and is located first slip arrangement block 34 in working chamber 71, first slip arrangement block 34 is equipped with the opening and towards left second slip chamber 75, second slip chamber 75 right side inner wall is fixed and is equipped with second electro-magnet 35, second slip chamber 75 right side inner wall is fixed and is equipped with second compression spring 36, second compression spring 36 other end is fixed and is equipped with sliding connection and is in second slip chamber 75 second takes A magnetic sliding block 37, a cover plate pulling-out mechanism 901 positioned in the working cavity 71 is arranged at the left end of the second magnetic sliding block 37, the cover plate pulling-out mechanism 901 comprises a fixed stage, a pulling-out working plate 38 positioned at the left end surface of the second magnetic sliding block 37 and positioned at the right side of the sewing machine rotating shuttle 12, a pulling-out working cavity 73 with an opening facing to the left is arranged in the left end surface of the pulling-out working plate 38, third sliding cavities 76 with opposite openings are symmetrically arranged in the inner walls at the front and back sides of the pulling-out working cavity 73, a third electromagnet 44 is fixedly arranged on the inner wall at the upper side of the third sliding cavity 76, a third compression spring 42 is fixedly arranged on the inner wall at the lower side of the third sliding cavity 76, a third magnetic sliding block 43 connected in the third sliding cavity 76 in a sliding manner is fixedly arranged at the other end of the third compression spring 42, a second sliding block 45 is fixedly arranged on the side end surface of the third magnetic sliding block 43 close to the, a fourth sliding cavity 77 with an opening facing the second magnetic sliding block 37 side is arranged in the second sliding placing block 45, the fourth sliding cavity 77 is far away from the inner wall of the second magnetic sliding block 37 side, a second sliding placing block 45 is fixedly arranged on the inner wall of the second magnetic sliding block 37 side, the fourth sliding cavity 77 is far away from the inner wall of the second magnetic sliding block 37 side, a fourth electromagnet 46 is fixedly arranged on the inner wall of the second magnetic sliding block 37 side, the fourth sliding cavity 77 is far away from the inner wall of the second magnetic sliding block 37 side, a fourth compression spring 47 is fixedly arranged at the other end of the fourth compression spring 47, a magnetic clamping block 49 which is connected in the fourth sliding cavity 77 in a sliding manner is fixedly arranged at the other end of the fourth compression spring, when a bottom coil needs to be replaced, the second electromagnet 35 works to repel the left side of the second magnetic sliding block 37 and stretch the second compression spring 36, the second magnetic sliding block 37 moves left to drive the pulling working plate 38 to move left, if the working plate 38 moves left to the cover plate 17 and contacts with the left end face of the, the first motor 32 works to drive the first sliding installation block 34 to rotate, the first sliding installation block 34 rotates to drive the pulling-out working plate 38 to rotate, when the pulling-out working plate 38 rotates to the position of the cover plate switch 17, the cover plate switch 17 is clamped in the pulling-out working cavity 73 and is positioned between the two magnetic clamping blocks 49 under the action of the second electromagnet 35, at this time, the first motor 32 stops working, then, the fourth electromagnet 46 works to repel the two magnetic clamping blocks 49 to move oppositely and clamp the cover plate switch 17, then, the second electromagnet 35 stops working, the pulling-out working plate 38 is driven to reset under the action of the second compression spring 36, meanwhile, the first electromagnet 40 works to drive the first magnetic clamping block 31 to move upwards and compress the first compression spring 33, the first magnetic sliding block 31 moves upwards to drive the sliding block pulling-out working plate 38 to move upwards, namely, the cover plate switch 17 is driven to swing obliquely upwards, and when the cover plate switch 17 is positioned at a horizontal limit position, the rotating shuttle cover plate 13 is pulled out of the bottom line placing cavity 72; the inner wall of the lower side of the first sliding cavity 74 is fixedly provided with a fifth electromagnet 26, the inner wall of the lower side of the first sliding cavity 74 is fixedly provided with a fifth compression spring 27, the other end of the fifth compression spring 27 is fixedly provided with a fourth magnetic sliding block 28 which is connected in the first sliding cavity 74 in a sliding manner, the left end of the fourth magnetic sliding block 28 extends into the working cavity 71 and is fixedly provided with a second motor 29, the left end surface of the second motor 29 is rotatably provided with a second rotating shaft 30, the second rotating shaft 30 is fixedly provided with a replacing rotating plate 22, the left end surface of the replacing rotating plate 22 is provided with two third rotating shafts 25 which are vertically and symmetrically rotated by taking the second rotating shaft 30 as the circle center, each third rotating shaft 25 is provided with a bottom coil replacing mechanism 902, the bottom coil replacing mechanism 902 comprises a replacing working block 24 which is fixedly connected to the third rotating shaft 25, two fifth sliding cavities 78 with leftward openings are vertically and symmetrically arranged in the left end surface of the replacing working block 24, a sixth electromagnet 50 is fixedly arranged on the inner wall of the right side of the fifth sliding cavity 78, a sixth compression spring 51 is fixedly arranged on the inner wall of the right side of the fifth sliding cavity 78, the other end of the sixth compression spring 51 is fixedly provided with a fourth magnetic sliding block 52 which is connected in the fifth sliding cavity 78 in a sliding manner, each fourth magnetic sliding block 52 is close to the left side of the end of the third rotating shaft 25, a sixth sliding cavity 79 with an opening facing the side of the third rotating shaft 25 is arranged in the left side of the end of the third rotating shaft 25, the sixth sliding cavity 79 is far away from the inner wall of the side of the third rotating shaft 25, a seventh electromagnet 53 is fixedly arranged on the inner wall of the side of the third rotating shaft 25, the sixth sliding cavity 79 is far away from the inner wall of the side of the third rotating shaft 25 and is fixedly provided with a seventh compression spring 54, a coil clamping block 55 with a magnetic bottom is fixedly arranged at the other end of the seventh compression spring 54, and in an initial state, two coil clamping blocks 55 with, the bobbin thread take-up reel 14 filled with the bobbin thread take-up bobbin 15 is interposed between the two bobbin thread take-up blocks 55 in the lower bobbin thread take-up mechanism 902, and when the rotating hook cover 13 is pulled out, the fifth electromagnet 26 operates to repel the fourth slider 28 from rising and stretch the fifth compression spring 27, the fourth slider 28 rises to move the second motor 29 and the upper bobbin thread take-up block 24 to the right side of the sewing machine rotating hook 12, then the upper two sixth electromagnets 50 operate to repel the fourth slider 52 from left and stretch the sixth compression spring 51, the fourth slider 52 moves to left to enter the bobbin thread take-up cavity 72 with the sixth sliding cavity 79 positioned on the right side of the bobbin thread take-up reel 14, and then the two seventh electromagnets 53 operate to repel the bobbin thread take-up blocks 55 from moving to the third rotary shaft 25 side and stretch the seventh compression spring 51 A compression spring 54, then the under thread holding block 55 with magnetism enters the under thread placing chamber 72 and is positioned at the left side of the under thread placing wheel 14 at the right side, then the sixth electromagnet 50 stops working, under the action of the sixth compression spring 51, the under thread placing wheel 14 is rapidly pulled out from the first rotating shaft 16 and the right end face of the under thread placing wheel 14 at the right side is abutted against the left end face of the replacing working block 24 at the upper side, thereby fixing the under thread placing wheel 14 and the under thread winding drum 15 which are used up, then the second motor 29 is operated to rotate the second rotating shaft 30, the second rotating shaft 30 is rotated to drive the under thread replacing mechanism 902 to move to the right side of the sewing machine rotating shuttle 12, then the under thread holding wheel 14 filled with the under thread winding drum 15 is fed into the under thread placing chamber 72 and is slidably connected to the first rotating shaft 16 by the operation of the sixth electromagnet 50 at the lower side, thereby completing the replacement of the bobbin thread placing wheel 14, when the operation of replacing the bobbin thread placing wheel 14 is finished, the fifth electromagnet 26 stops operating, the replacement rotating plate 22 is driven to reset by the fifth compression spring 27, then, the first electromagnet 40 stops operating, the pulling operating plate 38 is driven to reset by the first compression spring 33, then, the second electromagnet 35 operates again, the rotating shuttle cover 13 clamped between the first and second compression springs 39 is pushed into the bobbin thread placing cavity 72, thereby the whole sewing machine rotating shuttle 12 is in a working state again; a fourth motor 56 positioned on the lower side of the sewing machine rotating shuttle 12 is fixedly arranged in the inner wall of the left side of the working cavity 71, a fourth rotating shaft 57 is rotatably arranged on the right end face of the fourth motor 56, a winding driving rotating rod 58 is fixedly arranged on the fourth rotating shaft 57, a third sliding placing block 59 is fixedly arranged on the right end face of the winding driving rotating rod 58, a seventh sliding cavity 80 with a right opening is arranged in the third sliding placing block 59, an eighth electromagnet 60 is fixedly arranged on the inner wall of the left side of the seventh sliding cavity 80, an eighth compression spring 61 is fixedly arranged on the inner wall of the left side of the seventh sliding cavity 80, a fifth magnetic sliding block 62 slidably connected in the seventh sliding cavity 80 is fixedly arranged at the other end of the eighth compression spring 61, a bottom line pre-winding mechanism 903 positioned in the working cavity 71 is arranged at the right end of the fifth magnetic sliding block 62, the bottom line pre-winding mechanism 903 comprises a bottom line winding working block 63 fixedly connected on the right end face of the fifth magnetic sliding block 62, a bottom wire winding working cavity 81 with a rightward opening is arranged in the bottom wire winding working block 63, eighth sliding cavities 82 with a rightward opening are symmetrically arranged in the upper and lower inner walls of the bottom wire winding working cavity 81, ninth electromagnets 66 are fixedly arranged on the inner walls of the eighth sliding cavities 82 far away from the fifth magnetic sliding block 62, ninth compression springs 67 are fixedly arranged on the inner walls of the eighth sliding cavities 82 far away from the fifth magnetic sliding block 62, magnetic bottom wire clamping blocks 64 slidably connected in the eighth sliding cavities 82 are fixedly arranged at the other ends of the ninth compression springs 67, a ninth sliding cavity 83 located in the inner wall of the bottom wire winding working cavity 81 is arranged on the right side of each eighth sliding cavity 82, a tenth electromagnet 68 is fixedly arranged on the inner wall of the ninth sliding cavity 83 far away from the fifth magnetic sliding block 62, and a tenth compression spring 69 is fixedly arranged on the inner wall of the ninth sliding cavity 83 far away from the fifth magnetic sliding block 62, the other end of the tenth compression spring 69 is fixedly provided with a magnetic bobbin thread cutting block 65 which is slidably connected in the ninth sliding cavity 83, the lower side of the third sliding placement block 59 is provided with a spare bobbin thread placement plate 21 which is fixedly connected on the inner wall of the lower side of the working cavity 71, the upper end surface of the spare bobbin thread placement plate 21 is rotatably provided with a fifth rotating shaft 18, the fifth rotating shaft 18 is sleeved with a spare bobbin thread 19, one end of the spare bobbin thread 19 is clamped by the two magnetic bobbin thread clamping blocks 64 in an initial state, when the spare bobbin thread 19 needs to be supplemented on the used bobbin thread winding barrel 15, the eighth electromagnet 60 works to repel the fifth magnetic sliding block 62 to move right and stretch the eighth compression spring 61, the fifth magnetic sliding block 62 moves to drive the bobbin thread winding working block 63 to move to the lower side of the bobbin thread winding barrel 15 which is clamped between the magnetic bobbin thread clamping blocks 55 at the lower side and is used up, subsequently, the fourth motor 56 works to drive the fourth rotating shaft 57 to rotate, the fourth rotating shaft 57 rotates to drive the winding driving rotating rod 58 to rotate, the winding driving rotating rod 58 rotates to drive the bobbin thread winding working block 63 to do circular motion around the bobbin thread winding barrel 15, and the standby bobbin thread 19 clamped by the magnetic bobbin thread clamping block 64 is wound on the bobbin thread winding barrel 15 for a circle, when the bobbin thread winding working block 63 rotates for a circle and then is positioned at the lower side of the bobbin thread winding barrel 15 again, the ninth electromagnet 66 works to attract the magnetic bobbin thread clamping block 64 to enter the eighth sliding cavity 82 and compress the ninth compression spring 67, at this time, the standby bobbin thread 19 is released, and at the same time, the third motor 23 works to drive the third rotating shaft 25 to rotate, and the third rotating shaft 25 rotates to drive the replacing working block 24 to rotate, the replacement working block 24 rotates to drive the bobbin 15 clamped on the left end face of the replacement working block 24 to rotate, and the spare bobbin 19 is wound on the outer surface of the spare bobbin more, thereby achieving the effect of replenishing the standby bobbin thread 19, when the standby bobbin thread 19 is replenished, the ninth electromagnet 66 stops working, the magnetized bobbin thread clamping block 64 is reset by the ninth compression spring 67 and clamps the spare bobbin thread 19 therein, and then, the tenth electromagnet 68 operates to repel the two pieces of the bobbin thread cutting block 65 from moving out of the ninth sliding chamber 83 and contacting to cut the spare bobbin thread 19, and subsequently, the tenth electromagnet 68 stops operating, the magnetic bottom line cutting block 65 is driven to reset under the action of the tenth compression spring 69, meanwhile, the eighth electromagnet 60 stops working to drive the fifth magnetic sliding block 62 to reset.

Advantageously, each of the third rotating shafts 25 is rotatably connected at a right end thereof to a third motor 23 fixedly attached to a right end surface of the replacement rotating plate 22.

Advantageously, a distance sensor 20 positioned on the left side of the spare bottom line 19 is fixedly arranged on the inner wall of the left side of the working cavity 71, and a bottom line supplementary warning lamp 41 is fixedly arranged on the right end face of the machine body 11.

In the initial state, the first compression spring 33, the second compression spring 36, the third compression spring 42, the fourth compression spring 47, the fifth compression spring 27, the sixth compression spring 51, the seventh compression spring 54, the eighth compression spring 61, the ninth compression spring 67, and the tenth compression spring 69 are in the normal state.

When the bottom coil needs to be replaced, the second electromagnet 35 works to repel the second magnetic sliding block 37 to move left and stretches the second compression spring 36, the second magnetic sliding block 37 moves left to drive the pulling-out working plate 38 to move left, if the pulling-out working plate 38 moves left until the cover plate switch 17 is contacted with the left end face of the pulling-out working plate 38, the first motor 32 works to drive the first sliding arrangement block 34 to rotate, the first sliding arrangement block 34 rotates to drive the pulling-out working plate 38 to rotate, when the pulling-out working plate 38 rotates to the position of the cover plate switch 17, under the action of the second electromagnet 35, the cover plate switch 17 is clamped into the pulling-out working cavity 73 and positioned between the two magnetic clamping blocks 49, at the moment, the first motor 32 stops working, then, the fourth electromagnet 46 works to repel the two magnetic clamping blocks 49 to move oppositely and clamp the cover plate pulling-out switch 17, then, the second electromagnet 35 stops working, and drives the pulling-out working plate 38 to reset under the action of the second compression spring 36, meanwhile, the first electromagnet 40 works to drive the first magnetic slide block 31 to move upwards and compress the first compression spring 33, the first magnetic slide block 31 moves upwards to drive the pull-out working plate 38 to move upwards, namely, the cover plate switch 17 is driven to swing upwards in a slanting way, and when the cover plate switch 17 is positioned at a horizontal limit position, the rotating shuttle cover plate 13 is pulled out of the bottom line placing cavity 72; when the cover plate 13 is pulled out, the fifth electromagnet 26 operates to repel the fourth magnetic slider 28 and to extend the fifth compression spring 27, the fourth magnetic slider 28 ascends to move the second motor 29 and the upper replacement work block 24 to the right side of the sewing machine rotary hook 12, then the upper two sixth electromagnets 50 operate to repel the fourth magnetic slider 52 and to move it to the left and to extend the sixth compression spring 51, the fourth magnetic slider 52 moves it to the left into the lower thread placing chamber 72 with the sixth sliding chamber 79 being located on the left side of the right lower thread placing wheel 14, then the two seventh electromagnets 53 operate to repel the magnetic lower thread loop clamping block 55 to move it toward the third rotation shaft 25 side and to extend the seventh compression spring 54, then the magnetic lower thread placing chamber 55 enters the lower thread placing chamber 72 and is located on the left side of the right lower thread placing wheel 14, then the sixth electromagnet 50 stops operating, under the action of the sixth compression spring 51, the bobbin thread placing wheel 14 is quickly pulled out from the first rotary shaft 16 and the right end face of the right bobbin thread placing wheel 14 is made to abut on the left end face of the upper side replacement work block 24, thereby fixing the bobbin thread placing wheel 14 and the bobbin thread winding tube 15 which are used up, then, the second motor 29 is operated to drive the second rotary shaft 30 to rotate, the second rotary shaft 30 is rotated to drive the lower side bobbin thread replacing mechanism 902 to move to the right side of the sewing machine rotary hook 12, then, the lower side sixth electromagnet 50 is operated and performs the above-mentioned operation, the bobbin thread placing wheel 14 filled with the bobbin thread winding tube 15 is fed into the bobbin thread placing chamber 72 and slidably coupled to the first rotary shaft 16, thereby completing the replacement of the bobbin thread placing wheel 14, after the operation of the bobbin thread placing wheel 14 is finished, the fifth electromagnet 26 stops operating, the replacement rotary plate 22 is driven to return by the action of the fifth compression spring 27, then, the first electromagnet 40 stops operating, the pulling out work plate 38 is driven to return by the action of the first compression spring 33, subsequently, the second electromagnet 35 is operated again to push the rotating shuttle cover 13 sandwiched between 39 into the lower thread placing chamber 72, thereby putting the whole sewing machine rotating shuttle 12 in a operable state again; when the used bobbin thread winding drum 15 needs to be supplemented with the standby bobbin thread 19, the eighth electromagnet 60 works to repel the fifth magnetic sliding block 62 to move right and stretches the eighth compression spring 61, the fifth magnetic sliding block 62 moves to drive the bobbin thread winding working block 63 to move to the lower side of the used bobbin thread winding drum 15 which is clamped between the lower magnetic bobbin thread clamping blocks 55, then the fourth motor 56 works to drive the fourth rotating shaft 57 to rotate, the fourth rotating shaft 57 rotates to drive the winding driving rotating shaft 58 to rotate, the winding driving rotating shaft 58 rotates to drive the bobbin thread winding working block 63 to make a circular motion around the bobbin thread winding drum 15, and the standby bobbin thread 19 clamped by the magnetic bobbin thread clamping blocks 64 is wound on the bobbin thread winding drum 15 for a circle, when the bobbin thread winding working block 63 rotates for a circle and is positioned at the lower side of the bobbin thread winding drum 15 again, the ninth electromagnet 66 works to attract the magnetic bobbin thread clamping block 64 to enter the eighth sliding cavity 82 and compress the ninth compression spring 67, at this time, the spare bobbin thread 19 is released, at the same time, the third motor 23 on the lower side operates to drive the third rotating shaft 25 to rotate, the third rotating shaft 25 rotates to drive the replacing work block 24 to rotate, the replacing work block 24 rotates to drive the bobbin thread winding drum 15 clamped on the left end surface of the replacing work block 24 to rotate, and more of the spare bobbin thread 19 is wound on the outer surface thereof, so that the effect of supplementing the spare bobbin thread 19 is achieved, after the supplement of the spare bobbin thread 19 is completed, the ninth electromagnet 66 stops operating, the bobbin thread clamping block 64 is reset under the action of the ninth compression spring 67 and clamps the spare bobbin thread 19, then, the tenth electromagnet 68 operates to repel the two bobbin thread cutting blocks 65 out of the ninth sliding cavity 83 and contacts to cut the spare bobbin thread 19, then, the tenth electromagnet 68 stops operating, and drives the bobbin thread cutting blocks 65 to reset under the action of the tenth compression spring 69, meanwhile, the eighth electromagnet 60 stops working to drive the fifth magnetic sliding block 62 to reset; when the height of the spare bobbin thread 19 on the fifth rotating shaft 18 is lowered to the lower side of the distance sensor 20 after use, the distance sensor 20 detects and transmits information to the bobbin thread supplement warning lamp 41, and the bobbin thread supplement warning lamp 41 works to warn a worker to replace the spare bobbin thread 19 in time.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sewing machine with automatically, change end coil function, includes the fuselage, its characterized in that: a working cavity is arranged in the machine body, a sewing machine rotating shuttle is fixedly arranged on the inner wall of the left side of the working cavity, a bottom line placing cavity with a right opening is arranged in the sewing machine rotating shuttle, a first rotating shaft is rotatably arranged on the inner wall of the left side of the bottom line placing cavity, a bottom line placing wheel with a left end surface contacting with the inner wall of the left side of the bottom line placing cavity is slidably arranged on the first rotating shaft, a bottom line winding drum which is slidably connected to the first rotating shaft is arranged between the left end surface and the right end surface of the bottom line placing wheel, a rotating shuttle cover plate which is slidably connected to the first rotating shaft and is positioned in the bottom line placing cavity is arranged on the right side of the bottom line placing wheel, a cover plate switch is rotatably arranged on the right end surface of the rotating shuttle cover plate, when the bottom line placing wheel needs to be replaced, the cover plate switch needs to be pulled away from the rotating shuttle cover plate side, and then the, subsequently, the replacement of the bobbin thread placing wheel is performed; a first sliding cavity with an opening facing left is arranged in the inner wall of the right side of the working cavity, a first electromagnet is fixedly arranged on the inner wall of the upper side of the first sliding cavity, a first compression spring is fixedly arranged on the inner wall of the upper side of the first sliding cavity, a first magnetic slide block which is connected in the first sliding cavity in a sliding manner is fixedly arranged at the other end of the first compression spring, a first motor which is connected in the first sliding cavity in a sliding manner is fixedly arranged on the left end face of the first magnetic slide block, a first sliding arrangement block which is positioned in the working cavity is rotatably arranged on the left end face of the first motor, a second sliding cavity with an opening facing left is arranged in the first sliding arrangement block, a second electromagnet is fixedly arranged on the inner wall of the right side of the second sliding cavity, a second compression spring is fixedly arranged on the inner wall of the right side of the second sliding cavity, and a second magnetic slide block which is connected in the, the left end of the second magnetic sliding block is provided with a cover plate pulling-out mechanism positioned in the working cavity, the cover plate pulling-out mechanism comprises a fixed refining stage, a pulling-out working plate is positioned on the left end face of the second magnetic sliding block and on the right side of the sewing machine rotating shuttle, the pulling-out working cavity with an opening facing to the left is arranged in the left end face of the pulling-out working plate, third sliding cavities with opposite openings are symmetrically arranged in the inner walls of the front side and the rear side of the pulling-out working cavity, a third electromagnet is fixedly arranged on the inner wall of the upper side of the third sliding cavity, a third compression spring is fixedly arranged on the inner wall of the lower side of the third sliding cavity, the other end of the third compression spring is fixedly provided with a third magnetic sliding block which is slidably connected in the third sliding cavity, the third magnetic sliding block is close to the side end face of the second magnetic sliding block, a second sliding placing block with an opening facing to the side of the second magnetic sliding block is arranged in the, a second sliding placing block is fixedly arranged on the inner wall of the fourth sliding cavity far away from the second magnetic sliding block, a fourth electromagnet is fixedly arranged on the inner wall of the fourth sliding cavity far away from the second magnetic sliding block, a fourth compression spring is fixedly arranged on the inner wall of the fourth sliding cavity far away from the second magnetic sliding block, and a magnetic clamping block which is connected in the fourth sliding cavity in a sliding mode is fixedly arranged at the other end of the fourth compression spring; a fifth electromagnet is fixedly arranged on the inner wall of the lower side of the first sliding cavity, a fifth compression spring is fixedly arranged on the inner wall of the lower side of the first sliding cavity, a fourth magnetic sliding block which is connected in the first sliding cavity in a sliding manner is fixedly arranged at the other end of the fifth compression spring, the left end of the fourth magnetic sliding block extends into the working cavity and is fixedly provided with a second motor, a second rotating shaft is arranged on the left end surface of the second motor in a rotating manner, a replacing rotating plate is fixedly arranged on the second rotating shaft, two third rotating shafts are symmetrically and vertically arranged on the left end surface of the replacing rotating plate by taking the second rotating shaft as the circle center, a bottom coil replacing mechanism is arranged on each third rotating shaft and comprises a replacing working block fixedly connected on the third rotating shaft, two fifth sliding cavities with openings facing to the left are symmetrically arranged in the left end surface of the replacing working block up and down, fifth slip chamber right side inner wall is gone up to be fixed and is equipped with the sixth electro-magnet, the fixed sixth compression spring that is equipped with on the fifth slip chamber right side inner wall, sixth compression spring other end is fixed and is equipped with sliding connection and is in the fourth slide intracavity take magnetic sliding block, every the fourth slide sliding block is close all be equipped with the opening court in the third rotation axle head left side the sixth slip chamber of third rotation axle side, sixth slip chamber is kept away from the fixed seventh electro-magnet that is equipped with on the third rotation axle side inner wall, the sixth slip chamber is kept away from fixed seventh compression spring that is equipped with on the third rotation axle side inner wall, seventh compression spring other end is fixed and is equipped with and takes magnetism bottom coil clamp splice, initial state, upside two in the bottom coil replacement mechanism take not accompany between the magnetism bottom coil clamp splice the bottom wire place the wheel, downside two in the bottom coil replacement mechanism it is full of to accompany between the magnetism bottom coil clamp splice take the bottom coil to be full of A bobbin for winding the bobbin thread; a fourth motor positioned on the lower side of the sewing machine rotating shuttle is fixedly arranged in the inner wall of the left side of the working cavity, a fourth rotating shaft is arranged on the right end face of the fourth motor in a rotating manner, a winding driving rotating rod is fixedly arranged on the fourth rotating shaft, a third sliding placing block is fixedly arranged on the right end face of the winding driving rotating rod, a seventh sliding cavity with a right opening is arranged in the third sliding placing block, an eighth electromagnet is fixedly arranged on the inner wall of the left side of the seventh sliding cavity, an eighth compression spring is fixedly arranged on the inner wall of the left side of the seventh sliding cavity, a fifth magnetic sliding block in sliding connection with the seventh sliding cavity is fixedly arranged at the other end of the eighth compression spring, a bottom line pre-winding mechanism positioned in the working cavity is arranged at the right end of the fifth magnetic sliding block, and the bottom line pre-winding mechanism comprises a bottom line winding working block fixedly connected with the right end face, a bottom wire winding working cavity with an opening facing right is arranged in the bottom wire winding working cavity, eighth sliding cavities with openings facing the fifth magnetic sliding block side are symmetrically arranged in the inner walls of the upper side and the lower side of the bottom wire winding working cavity, ninth electromagnets are fixedly arranged on the inner walls of the sides of the eighth sliding cavities far away from the fifth magnetic sliding block, ninth compression springs are fixedly arranged on the inner walls of the sides of the eighth sliding cavities far away from the fifth magnetic sliding block, magnetic bottom wire clamping blocks connected in the eighth sliding cavities in a sliding manner are fixedly arranged at the other ends of the ninth compression springs, a ninth sliding cavity located in the inner wall of the bottom wire winding working cavity is arranged on the right side of each eighth sliding cavity, a tenth electromagnet is fixedly arranged on the inner wall of the side of the ninth sliding cavity far away from the fifth magnetic sliding block, and a tenth compression spring is fixedly arranged on the inner wall of the side of the ninth sliding cavity far away from the fifth magnetic sliding block, tenth compression spring other end is fixed to be equipped with sliding connection and is in the magnetic bottom line cutting off block of taking of ninth slip intracavity, the third slides and places a downside and be equipped with fixed connection and place the board in spare bottom line on the inner wall of working chamber downside, spare bottom line is placed the board up end and is rotated and be equipped with the fifth axis of rotation, the cover has spare bottom line in the fifth axis of rotation, under the initial condition, spare bottom line one end is by two take the magnetic bottom line clamp splice to clip.

2. The sewing machine with the function of automatically replacing the bottom coil according to claim 1, characterized in that: and the right end of each third rotating shaft is rotatably connected with a third motor fixedly connected to the right end face of the replacing rotating plate.

3. The sewing machine with the function of automatically replacing the bottom coil according to claim 1, characterized in that: the working chamber left side inner wall is fixed to be equipped with and is located the left distance sensor of reserve bottom line, the fixed bottom line that is equipped with supplements the warning light on the fuselage right-hand member face.