CN110438669B

CN110438669B - Online sewing machine based on Internet of things technology and management system thereof

Info

Publication number: CN110438669B
Application number: CN201910656806.9A
Authority: CN
Inventors: 沈淑婉
Original assignee: Zhuhai Hehe Clothing Co ltd
Current assignee: Zhuhai Hehe Clothing Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2022-01-04
Anticipated expiration: 2039-07-19
Also published as: CN110438669A

Abstract

The invention discloses an online sewing machine based on the technology of Internet of things and a management system thereof, comprising a sewing machine body, a thread roller detection mechanism and a puncture detection mechanism; the sewing machine body is internally provided with a motor, the thread roller detection mechanism comprises a sewing machine body, and the upper surface of the sewing machine body is sequentially provided with a thread column and a sliding chute; the puncture detection mechanism comprises a base, wherein a bearing plate is connected to the base, a first circular through hole is formed in the bearing plate, two symmetrical circular grooves are formed in the side face of the first circular through hole, and an infrared transmitter and an infrared receiver are respectively arranged in the two symmetrical circular grooves; this online sewing machine based on internet of things and management system thereof can carry out the preliminary alarm to the condition that the line on the thread roll was used up soon, need carry out threading once more after preventing the line on the thread roll from using up, does not influence work efficiency, can detect the condition of sewing needle puncture moreover, prevents still work after the sewing needle fracture, the management of being convenient for.

Description

Online sewing machine based on Internet of things technology and management system thereof

Technical Field

The invention relates to the technical field of online sewing machines, in particular to an online sewing machine based on the technology of the Internet of things and a management system thereof.

Background

In the garment processing, a large number of sewing machines are arranged, hundreds of sewing machines are arranged, even thousands of sewing machines are arranged, and the management work of the large number of sewing machines is also a difficult problem. In the prior art, a sewing machine cannot give a warning in advance when the thread on the thread roller is used up soon, the thread on the thread roller needs to be threaded again after the thread is used up, the working efficiency is affected, the condition of needle puncture cannot be detected, the sewing needle still works after being broken, the product quality is unqualified, and a plurality of sewing machines which are independently arranged are inconvenient to manage.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an online sewing machine based on the technology of the Internet of things and a management system thereof, which can pre-alarm the thread which is used up quickly on a thread roller, prevent the thread on the thread roller from needing threading again after being used up, do not affect the working efficiency, detect the condition of the puncture of a sewing needle, prevent the sewing needle from still working after being broken, are convenient to manage and can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: an online sewing machine based on the technology of the Internet of things comprises a sewing machine body, a thread roller detection mechanism and a puncture detection mechanism; the sewing machine is characterized in that a motor is arranged in the sewing machine body, the motor is connected with a crankshaft, a connecting ring is sleeved on the crankshaft, the side surface of the connecting ring is connected with a sewing needle mounting mechanism through a connecting rod, and a sewing needle is mounted on the sewing needle mounting mechanism and can be driven to move up and down to sew; the sewing machine body is provided with a thread roller detection mechanism, the lower part of the sewing machine body is fixedly connected with a base, and the base is provided with a puncture detection mechanism; wherein, the inside PLC controller that is equipped with of base, the upper surface of PLC controller is equipped with first wireless transceiver, the PLC controller is connected with first wireless transceiver, motor, line roller detection mechanism, puncture detection mechanism and external power supply electricity, first wireless transceiver is connected with external management server electricity.

So set up, the information transfer of roller detection device and puncture detection mechanism collects for the PLC controller to transmit for outside management server through first wireless transceiver, can show on the outside management server that the condition that the line roller detected and puncture detected carries out the analysis and shows and report to the police, send wireless signal through second wireless transceiver and transmit for first wireless transceiver, first wireless transceiver transmits the signal of telecommunication and gives the PLC controller, make PLC controller control motor stop work.

Furthermore, the thread roller detection mechanism comprises a sewing machine body, wherein a thread post and a sliding groove are sequentially arranged on the upper surface of the sewing machine body, the sliding groove is located on the right side of the thread post, a first electric connection terminal is arranged at one end, close to the thread post, of the sliding groove, a first spring is arranged at one end, far away from the thread post, of the sliding groove, the left end of the first spring is connected with a top plate, a second electric connection terminal is arranged on one side, far away from the first spring, of the top plate, the second electric connection terminal is correspondingly connected with the first electric connection terminal in a butting mode, the thickness of the thread on the thread roller can be detected, and the thread amount on the thread roller is further detected; the PLC controller is respectively electrically connected with the first electric connection terminal and the second electric connection terminal.

Further, the puncture detection mechanism comprises a base, a bearing plate is connected to the base, a first circular through hole is formed in the bearing plate and located below the sewing needle, two symmetrical circular grooves are formed in the side face of the first circular through hole, and an infrared emitter and an infrared receiver are respectively arranged in the two symmetrical circular grooves, so that the puncture condition of the sewing needle can be detected; the PLC controller is respectively electrically connected with the infrared transmitter and the infrared receiver.

Further, still include the reference column, the right-hand member at the spout is established to the reference column, and first spring cup joints the side at the reference column, can fix a position first spring, prevents that first spring skew can't work.

The sewing machine further comprises a tensioning mechanism, the tensioning mechanism comprises a fixing column, the fixing column is arranged on the side face of the sewing machine body, two annular sheets and a second spring are sequentially sleeved on the side face of the fixing column, a stop block is arranged at one end, far away from the sewing machine body, of the fixing column, the second spring is located between the annular sheets and the stop block, a sewing thread penetrates between the two annular sheets, the second spring pushes one of the annular sheets, the two annular sheets can be close to each other to be extruded, the friction force of the sewing thread passing through is increased, and the sewing thread can be tensioned conveniently.

Further, sewing needle installation mechanism includes the sewing needle mount pad, the bottom side of sewing needle mount pad is equipped with the connecting block, two erection columns of side fixedly connected with of connecting block, third spring and sleeve have been cup jointed in proper order to the side of connecting block, and the third spring is located between sewing needle mount pad and the sleeve, and the sewing needle cup joints on the erection column, and the third spring promotes the sleeve and fixes a position the sewing needle, prevents droing of sewing needle.

Further, the side fixedly connected with of connecting block is fixed the ring, telescopic inside top side fixedly connected with ring baffle, and ring baffle is located fixed ring's top, can fix telescopic position.

Further, the one end that the motor was kept away from to the bent axle runs through the sewing machine body, the one end that the motor was kept away from to the bent axle is equipped with the turning handle, can rotate the turning handle, drives the bent axle rotation, makes the sewing needle retract, is convenient for take off of cloth.

Further, still include the circular through-hole of second, the circular through-hole of second is seted up in the side of base, the transmitting terminal of first wireless transceiver stretches into the inside of the circular through-hole of second, prevents that inside seal from blockking wireless signal's transmission.

The invention further provides a management system of the online sewing machine based on the internet of things technology, and the management system comprises a thread roller detection mechanism, a puncture detection mechanism, a first wireless transceiver, a PLC (programmable logic controller) and an external management server, wherein the external management server comprises a CPU (central processing unit), a keyboard, a display, an alarm and a second wireless transceiver, the first wireless transceiver and the keyboard are electrically connected with the CPU, the CPU is electrically connected with the display, the alarm and the second wireless transceiver, and the second wireless transceiver is electrically connected with the PLC.

Compared with the prior art, the invention has the beneficial effects that:

1. the wire roller is sleeved on the wire column, the first spring extends out to push the top plate to move along the sliding groove, so that the top plate is abutted to the wire roller, when the number of wires on the wire roller is too small, the second electric connection terminal is in contact with the first electric connection terminal to be electrified, an electric signal is transmitted to the PLC, and the electric signal is transmitted to the external management server through the first wireless transceiver, so that the thickness of the wires on the wire roller can be detected, and the wire amount on the wire roller can be further detected;

2. the PLC controls the motor, the infrared emitter and the infrared receiver to work simultaneously, when the sewing needle passes through the first circular through hole, the infrared rays between the infrared emitter and the infrared receiver can be interrupted, the puncture condition of the sewing needle is further determined, and the puncture condition of the sewing needle can be detected;

3. the external management server can display the conditions of thread roller detection and puncture detection for analysis and display, simultaneously manage a plurality of sewing machines, finely manage and improve the working efficiency of enterprises, can carry out detailed statistics and prediction on the working conditions of the sewing machines and carry out prejudgment on faults in advance;

4. the information transmission of roller detection device and puncture detection mechanism collects for the PLC controller to give the outside management server through first wireless transceiver transmission, can show on the outside management server that the condition that the line roller detected and puncture detected carries out analysis display and report to the police, send wireless signal transmission for first wireless transceiver through second wireless transceiver, first wireless transceiver transmits the signal of telecommunication for the PLC controller, makes PLC controller control motor stop work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a schematic cross-sectional view of a structural sewing needle mounting mechanism of the present invention;

FIG. 4 is a flow chart of the structure management system of the present invention.

In the figure: the sewing machine comprises a base 1, a sewing machine body 2, a thread post 3, a sliding groove 4, a top plate 5, a first spring 6, a positioning post 7, an annular piece 8, a fixing post 9, a second spring 10, a stop 11, a rotating handle 12, a bearing plate 13, a first circular through hole 14, a second circular through hole 15, a PLC (programmable logic controller) 16, a first wireless transceiver 17, a sleeve 18, a mounting post 19, an infrared emitter 20, an infrared receiver 21, a circular groove 22, a sewing needle 23, a sewing needle mounting mechanism 24, a connecting rod 25, a fixing ring 26, a connecting ring 27, a crankshaft 28, a motor 29, a first electric connection terminal 30, a second electric connection terminal 31, a sewing needle mounting seat 32, a connecting block 33, a third spring 34 and an annular baffle 35.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

the first embodiment is as follows: an online sewing machine based on the technology of the Internet of things comprises a sewing machine body 2, a thread roller detection mechanism and a puncture detection mechanism; the sewing machine body 2: the sewing machine body 2 is internally provided with a motor 29, the motor 29 is connected with a crankshaft 28, one end of the crankshaft 28, which is far away from the motor 29, penetrates through the sewing machine body 2, one end of the crankshaft 28, which is far away from the motor 29, is provided with a rotating handle 12, which can rotate the rotating handle 12 to drive the crankshaft 28 to rotate, so that a sewing needle can retract and the cloth can be conveniently taken down, the crankshaft 28 is sleeved with a connecting ring 27, the side surface of the connecting ring 27 is connected with a sewing needle mounting mechanism 24 through a connecting rod 25, the sewing needle mounting mechanism 24 comprises a sewing needle mounting seat 32, the bottom side of the sewing needle mounting seat 32 is provided with a connecting block 33, the side surface of the connecting block 33 is fixedly connected with two mounting columns 19, the side surface of the connecting block 33 is sequentially sleeved with a third spring 34 and a sleeve 18, the third spring 34 is positioned between the sewing needle mounting seat 32 and the sleeve 18, the sewing needle 23 is sleeved on the mounting columns 19, the third spring 34 pushes the sleeve 18 to position the sewing needle 23, the sewing needle is prevented from falling off, a fixing ring 26 is fixedly connected to the side face of the connecting block 33, an annular baffle 35 is fixedly connected to the top side of the interior of the sleeve 18, the annular baffle 35 is located above the fixing ring 26 and can fix the position of the sleeve 18, the sewing needle 23 is installed on the sewing needle installation mechanism 24, the motor 29 works to drive the crankshaft 28 to rotate, the connecting ring 27 moves relative to the crankshaft 28, the connecting ring 27 drives the connecting rod 25 and the sewing needle installation mechanism 24 to move up and down, and the sewing needle installation mechanism 24 moves up and down to drive the sewing needle 23 to move up and down for sewing; line roller detection mechanism: the thread roller detection mechanism comprises a sewing machine body 2, a thread post 3 and a sliding groove 4 are sequentially arranged on the upper surface of the sewing machine body 2, the sliding groove 4 is positioned on the right side of the thread post 3, one end, close to the thread post 3, of the sliding groove 4 is provided with a first electric terminal 30, one end, far away from the thread post 3, of the sliding groove 4 is provided with a first spring 6, the left end of the first spring 6 is connected with a top plate 5, one side, far away from the first spring 6, of the top plate 5 is provided with a second electric terminal 31, the second electric terminal 31 is in abutting connection with the first electric terminal 30 correspondingly, a thread roller is sleeved on the thread post 3, the first spring 6 extends out to push the top plate 5 to move along the sliding groove 4, the top plate 5 abuts against the thread roller, when a thread on the thread roller is too small, the second electric terminal 31 is in contact with the first electric terminal 30 to be electrified, an electric signal is transmitted to a PLC (16) and is transmitted to an external management server through a first wireless transceiver 17, so that the thickness of the thread on the thread roller can be detected, the sewing machine further comprises a positioning column 7, the positioning column 7 is arranged at the right end of the sliding groove 4, the first spring 6 is sleeved on the side face of the positioning column 7, the first spring 6 can be positioned, and the first spring 6 is prevented from deviating and failing to work; puncture detection mechanism: the puncture detection mechanism comprises a base 1, a bearing plate 13 is connected to the base 1, a first circular through hole 14 is formed in the bearing plate 13, the first circular through hole 14 is located below a sewing needle 23, two symmetrical circular grooves 22 are formed in the side face of the first circular through hole 14, an infrared emitter 20 and an infrared receiver 21 are respectively arranged in the two symmetrical circular grooves 22, a PLC (programmable logic controller) 16 simultaneously controls a motor 29, the infrared emitter 20 and the infrared receiver 21 to work, when the sewing needle 23 penetrates through the first circular through hole 14, infrared rays between the infrared emitter 20 and the infrared receiver 21 can be interrupted, the puncture condition of the sewing needle is further determined, and the puncture condition of the sewing needle 23 can be detected; wherein, the base 1 is internally provided with a PLC controller 16, the upper surface of the PLC controller 16 is provided with a first wireless transceiver 17, the PLC controller 16 is electrically connected with the first wireless transceiver 17, a first electric connection terminal 30, a motor 29 and an infrared emitter 20, the PLC controller 16 is electrically connected with an infrared receiver 21, a second electric connection terminal 31 and an external power supply, the first wireless transceiver 17 is electrically connected with an external management server, the management system comprises a wire roller detection mechanism, a puncture detection mechanism, the first wireless transceiver 17, the PLC controller 16 and the external management server, the external management server comprises a CPU, a keyboard, a display, an alarm and a second wireless transceiver, the first wireless transceiver 17 and the keyboard are electrically connected with the CPU, the CPU is electrically connected with the display, the alarm and the second wireless transceiver, the second wireless transceiver is electrically connected with the PLC controller 16, the information of the roller detection device and the puncture detection mechanism is transmitted to the PLC 16 for collection and is transmitted to an external management server through the first wireless transceiver 17, the external management server can display the conditions of the roller detection and the puncture detection for analysis and display and alarm, a wireless signal is transmitted to the first wireless transceiver 17 through the second wireless transceiver, the first wireless transceiver 17 transmits an electric signal to the PLC 16, so that the PLC 16 controls the motor 29 to stop working, a plurality of sewing machines are managed simultaneously, the fine management improves the working efficiency of enterprises, the working conditions of the sewing machines can be counted and predicted in detail, the faults are predicted in advance, the PLC 16 controls the first wireless transceiver 17, the first electric connection terminal 30, the motor 29, the infrared transmitter 20, the infrared receiver 21 and the second electric connection terminal 31 to work by adopting a method commonly used in the prior art, the PLC controller 16 is embodied as Siemens S7-300.

Example two:

the difference between this embodiment and the first embodiment is:

in this embodiment, still include straining device, straining device includes fixed column 9, and fixed column 9 establishes in the side of sewing machine body 2, and two annular pieces 8 and second spring 10 have been cup jointed in proper order to the side of fixed column 9, and the one end that sewing machine body 2 was kept away from to fixed column 9 is equipped with dog 11, and second spring 10 is located between annular piece 8 and the dog 11.

Specifically, the sewing thread is arranged to pass between the two ring-shaped sheets 8, and the second spring 10 pushes one of the ring-shaped sheets 8, so that the two ring-shaped sheets 8 are pressed close to each other, thereby increasing the friction force of the sewing thread passing through, and facilitating the tensioning of the sewing thread.

Example three:

the difference between this embodiment and the first embodiment is:

in this embodiment, the wireless communication device further includes a second circular through hole 15, the second circular through hole 15 is opened on the side surface of the base 1, and the transmitting end of the first wireless transceiver 17 extends into the second circular through hole 15.

In particular, this arrangement prevents the internal seal from blocking the transmission of wireless signals by the first wireless transceiver 17, facilitating the transmission of signals.

The utility model provides a management system of online sewing machine based on internet of things, includes line roller detection mechanism, puncture detection mechanism, first wireless transceiver 17, PLC controller 16 and outside management server, outside management server includes CPU, keyboard, display, alarm and second wireless transceiver, and first wireless transceiver 17 and keyboard are connected with the CPU electricity, CPU is connected with display, alarm and second wireless transceiver electricity, second wireless transceiver is connected with PLC controller 16 electricity, and the outside management server who sets up at the distal end can carry out the data interaction through first wireless transceiver, second wireless transceiver and PLC controller 16 to acquire sewing machine's operational data, and the accessible sends down the instruction to PLC controller 16 and manages online sewing machine.

When in use: the thread roller is sleeved on the thread post 3, the first spring 6 extends out to push the top plate 5 to move along the sliding groove 4, so that the top plate 5 is abutted on the thread roller, when the thread on the thread roller is too little, the second electric terminal 31 is contacted with the first electric terminal 30 to be electrified, an electric signal is transmitted to the PLC 16 and is transmitted to an external management server through the first wireless transceiver 17, the thickness of the thread on the thread roller can be detected, the thread amount on the thread roller can be detected, the sewing thread on the thread roller can be managed, the PLC 16 simultaneously controls the motor 29, the infrared transmitter 20 and the infrared receiver 21 to work, the motor 29 works to drive the crankshaft 28 to rotate, so that the connecting ring 27 moves relatively along the crankshaft 28, the connecting ring 27 drives the connecting rod 25 and the sewing needle mounting mechanism 24 to move up and down, the sewing needle mounting mechanism 24 moves up and down to drive the sewing needle 23 to move up and down for sewing, when the sewing needle 23 passes through the first circular through hole 14, the infrared ray between the infrared emitter 20 and the infrared receiver 21 can be interrupted, the puncture condition of the sewing needle can be determined, the puncture condition of the sewing needle 23 can be detected, the information of the roller detection device and the puncture detection mechanism is transmitted to the PLC controller 16 to be collected and transmitted to an external management server through the first wireless transceiver 17, the conditions of the roller detection and the puncture detection can be displayed on the external management server to be analyzed and displayed and give an alarm, a wireless signal is transmitted to the first wireless transceiver 17 through the second wireless transceiver, the first wireless transceiver 17 transmits an electric signal to the PLC controller 16, and the PLC controller 16 controls the motor 29 to stop working.

It should be noted that the PLC controller 16 disclosed in this embodiment controls the first wireless transceiver 17, the first electrical terminal 30, the motor 29, the infrared transmitter 20, the infrared receiver 21, and the second electrical terminal 31 to operate by a method commonly used in the art, the PLC controller 16 is specifically siemens S7-300, and the motor 29 may be a single-phase series motor manufactured by shin motor products ltd, available in dongguan, preferably with a rotation speed of 21000 rpm or less.

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

Claims

1. The utility model provides a management system of online sewing machine based on internet of things, its characterized in that: the device comprises a wire roller detection mechanism, a puncture detection mechanism, a first wireless transceiver (17), a programmable logic controller (16) and an external management server, wherein the external management server comprises a CPU (Central processing Unit), a keyboard, a display, an alarm and a second wireless transceiver, the first wireless transceiver (17) and the keyboard are electrically connected with the CPU, the CPU is electrically connected with the display, the alarm and the second wireless transceiver, and the second wireless transceiver is electrically connected with the programmable logic controller (16); the information of the wire roller detection mechanism and the puncture detection mechanism is transmitted to the programmable logic controller (16) for collection, and is transmitted to an external management server through a first wireless transceiver (17), the conditions of the wire roller detection and the puncture detection are analyzed and displayed on the external management server and are alarmed, a wireless signal is transmitted to the first wireless transceiver (17) through a second wireless transceiver, and the first wireless transceiver (17) transmits an electric signal to the programmable logic controller (16);

the online sewing machine comprises a sewing machine body (2), a thread roller detection mechanism and a puncture detection mechanism; a motor (29) is arranged in the sewing machine body (2), the motor (29) is connected with a crankshaft (28), one end, far away from the motor (29), of the crankshaft (28) penetrates through the sewing machine body (2), and a rotating handle (12) is arranged at one end, far away from the motor (29), of the crankshaft (28) so as to rotate the rotating handle (12) to drive the crankshaft (28) to rotate to enable the sewing needle to retract; the connecting ring (27) is sleeved on the crankshaft (28), the side surface of the connecting ring (27) is connected with a sewing needle installation mechanism (24) through a connecting rod (25), the sewing needle installation mechanism (24) comprises a sewing needle installation seat (32), a connecting block (33) is arranged at the bottom side of the sewing needle installation seat (32), two installation columns (19) are fixedly connected to the side surface of the connecting block (33), a third spring (34) and a sleeve (18) are sequentially sleeved on the side surface of the connecting block (33), and the third spring (34) is located between the sewing needle installation seat (32) and the sleeve (18); the sewing needle mounting mechanism (24) is provided with a sewing needle (23); the sewing needle (23) is sleeved on the mounting column (19), and the third spring (34) pushes the sleeve (18) to position the sewing needle (23);

the sewing machine body (2) is provided with a thread roller detection mechanism, the lower part of the sewing machine body (2) is fixedly connected with the base (1), and the base (1) is provided with a puncture detection mechanism; the automatic puncture detection device comprises a base (1), a programmable logic controller (16), a first wireless transceiver (17), a motor (29), a wire roller detection mechanism, a puncture detection mechanism and an external power supply, wherein the programmable logic controller (16) is arranged in the base (1), the first wireless transceiver (17) is arranged on the upper surface of the programmable logic controller (16), and the programmable logic controller (16) is electrically connected with the first wireless transceiver (17), the motor (29), the wire roller detection mechanism, the puncture detection mechanism and the external power supply; the programmable logic controller (16) is electrically connected with the first wireless transceiver (17), the first electric connection terminal (30), the motor (29) and the infrared transmitter (20), the programmable logic controller (16) is electrically connected with the infrared receiver (21), the second electric connection terminal (31) and an external power supply, and the first wireless transceiver (17) is electrically connected with an external management server;

the thread roller detection mechanism comprises a thread column (3) and a sliding groove (4), the upper surface of the sewing machine body (2) is sequentially provided with the thread column (3) and the sliding groove (4), the sliding groove (4) is located on the right side of the thread column (3), one end, close to the thread column (3), of the sliding groove (4) is provided with a first electric connection terminal (30), one end, far away from the thread column (3), of the sliding groove (4) is provided with a first spring (6), the left end of the first spring (6) is connected with a top plate (5), one side, far away from the first spring (6), of the top plate (5) is provided with a second electric connection terminal (31), the second electric connection terminal (31) is correspondingly connected with the first electric connection terminal (30) in a butting mode, and the programmable logic controller (16) is respectively connected with the first electric connection terminal (30) and the second electric connection terminal (31);

the puncture detection mechanism comprises a bearing plate (13), the bearing plate (13) is connected to the base (1), a first circular through hole (14) is formed in the bearing plate (13), the first circular through hole (14) is located below the sewing needle (23), two symmetrical circular grooves (22) are formed in the side face of the first circular through hole (14), the two symmetrical circular grooves (22) are respectively provided with an infrared emitter (20) and an infrared receiver (21), and the programmable logic controller (16) is respectively electrically connected with the infrared emitter (20) and the infrared receiver (21); the programmable logic controller (16) simultaneously controls the motor (29), the infrared emitter (20) and the infrared receiver (21), and detects the puncture condition of the sewing needle (23) when the sewing needle (23) penetrates through the first circular through hole (14) to discontinuously block the infrared ray between the infrared emitter (20) and the infrared receiver (21);

still include reference column (7), establish at the right-hand member of spout (4) reference column (7), and first spring (6) cup joint the side at reference column (7), fix a position first spring (6).

2. The management system of the online sewing machine based on the internet of things technology as claimed in claim 1, wherein: the side fixedly connected with of connecting block (33) fixes ring (26), the inside top side fixedly connected with ring baffle (35) of sleeve (18), and ring baffle (35) are located the top of fixing ring (26).

3. The management system of the online sewing machine based on the internet of things technology as claimed in claim 2, wherein: still include straining device, straining device includes fixed column (9), and fixed column (9) establish the side at sewing machine body (2), two annular pieces (8) and second spring (10) have been cup jointed in proper order to the side of fixed column (9), the one end that sewing machine body (2) were kept away from in fixed column (9) is equipped with dog (11), second spring (10) are located between annular piece (8) and dog (11).

4. The management system of the online sewing machine based on the internet of things technology as claimed in claim 3, wherein: the wireless communication device is characterized by further comprising a second round through hole (15), wherein the second round through hole (15) is formed in the side face of the base (1), and the transmitting end of the first wireless transceiver (17) extends into the second round through hole (15).