A self-sealing yarn condition monitor
By adopting a combined structure of the display fixed plate and circuit board in the yarn status monitor, combined with hot melt adhesive ring and magnetic induction technology, the problems of insolid installation and poor sealing effect are solved, and a higher service life is achieved It also has dustproof and waterproof performance, which improves work efficiency and production cost savings.
Patent Information
- Application Number
- CN202010691714.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-07-17
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2040-07-17
AI Technical Summary
The display screen of the existing yarn status monitor is not installed firmly, resulting in poor sealing effect, affecting service life and dustproof and waterproof performance.
A self-sealed yarn status monitor is designed, adopting a combined structure of the display fixed plate and the circuit board. Through the design of small blanks and LED lights, the display screen is ensured to be installed firmly and has good sealing performance, and a hot melt adhesive ring is used. It achieves seamless connection with magnetic induction and improves waterproof and dustproof effect.
It realizes the firm installation and sealing of the display screen, extends the service life, improves work efficiency and production cost savings, and enhances dust and waterproof functions.
Smart Images

Figure CN111926453B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of yarn production equipment, and in particular to a self-sealed yarn state monitor. Background Art
[0002] In knitting equipment, the state of the yarn needs to be judged by the relevant yarn state detector. Generally, multiple yarn state monitors are installed on a knitting machine. These yarn state monitors need to upload the collected yarn state information to the corresponding yarn state controller, and the yarn state controller counts and processes the collected information. At the same time, the operator sets the parameters of the yarn state controller according to actual needs, and passes the set parameters to the corresponding yarn state detector to realize the information transmission and interaction among people, yarn state monitors and yarn state detectors. The existing yarn monitor display screen is not installed firmly and has poor sealing effect. Summary of the invention
[0003] 1. Technical problem to be solved by the invention
[0004] In view of the technical problem that the display screen of the self-sealing yarn state monitor is not firmly installed, resulting in poor sealing effect, the present invention provides a self-sealing yarn state monitor, which can achieve the technical effect of firm installation and good sealing performance.
[0005] 2. Technical solution
[0006] To solve the above problems, the technical solution provided by the present invention is:
[0007] A self-sealed yarn status monitor includes: a button transparent plate, a front shell, a display screen, a display screen fixing plate, a circuit board and a rear shell; the front shell and the rear shell form a sealed cover shell; the circuit board is installed in the cover shell; the display screen is fixed between the display screen fixing plate and the front shell, and two rectangular baffles are provided above and below the display screen fixing plate. The display screen of the present invention is fixed to the front shell by a display screen fixing plate, and small baffles are provided on the upper and lower sides of the display screen fixing plate, which can better fix the display screen and make the display screen more secure and fit more closely when installed; at the same time, the design of the display screen fixing plate eliminates the friction between the display screen and the circuit board, and increases the service life of the display screen and the circuit board, has good sealing, and has certain dustproof, waterproof and other functions. Through the design of the circuit board and the display screen, the present invention allows the operator to process the yarn through the LED light and the display screen, which greatly improves the work efficiency and saves time and production costs.
[0008] Optionally, the circuit board is provided with a plurality of communication interfaces, and the communication interface can be connected to the yarn state detector via a line to transmit information; the communication interface can be connected to the communication interface of the yarn state detector via the rear housing.
[0009] Optionally, the front shell is provided with a tube to be inserted adjacent to the outer periphery of the front shell, and a hot melt adhesive ring is adhered to the inner wall of the tube to be inserted; the rear shell is provided with a column adapted to the tube to be inserted adjacent to the outer periphery of the rear shell, and an annular magnetic sheet is provided in the column.
[0010] Optionally, the tube to be inserted is provided with a closed magnetic coil and a heating wire, the circuit board is integrated with a main control chip and a power supply, the closed magnetic coil and the heating wire are electrically connected to the main control chip and the power supply through a wire; the main control chip is used to receive the electrical signal induced by the closed magnetic coil, and control the preset time for the power supply to be turned on, so that the heating wire starts to heat and the hot melt adhesive melts. In the present invention, when the plug is inserted into the closed magnetic coil, the closed magnetic coil generates an electrical signal due to magnetic induction, the main control chip is used to receive the electrical signal induced by the closed magnetic coil, and control the preset time for the power supply to be turned on, so that the heating wire starts to heat and the hot melt adhesive melts, and the liquid after the hot melt adhesive is melted flows into the gap between the front shell and the rear shell, so that the tube to be inserted and the plug are seamlessly connected, thereby improving the waterproof and dustproof effect between the front shell and the rear shell.
[0011] Optionally, a key connection interface is provided on the circuit board; a key signal line is provided on the key transparent board; the key signal line passes through the front housing, the display screen, the display screen fixing plate in sequence and is connected to the key connection interface on the circuit board. The present invention adopts "the key signal line on the key transparent board passes through the front housing, the display screen, the display screen fixing plate in sequence and reaches the key interface on the circuit board". Such a structure only requires a 1.5cm-2cm wire to complete the connection, and the wire has a small contact surface with each module, which prevents the edge of each module from rubbing against the wire, and the wire is easy to plug and unplug from the circuit board.
[0012] Optionally, a plurality of circular buttons are provided on the front surface of the button transparent plate.
[0013] Optionally, a first rectangular hole is provided on the front shell at a position corresponding to the button wiring port, and a second rectangular hole is provided on the circuit board. The key signal line of the key passes through the key wiring port, the first rectangular hole on the front shell, the second rectangular hole on the circuit board, and is connected to the corresponding wiring port on the circuit board.
[0014] Optionally, there is a third rectangular hole with the same length and width as the display screen on the left side of the front surface of the front shell, and the wiring on the key transparent plate is connected to the circuit board through the hole. At the same time, a rectangular groove is also provided at the corresponding position on the circuit board for the wiring to pass through.
[0015] Optionally, the circuit board is integrated with a signal interface circuit, a main control chip and a power interface, and the signal interface circuit includes a communication interface, a key connection interface and a debugging interface; the power interface circuit supplies power to the circuit board through the interface and transmits signals.
[0016] Optionally, two first grooves are provided at the lower sides of the front shell, and these two grooves and the two second grooves on the rear shell correspond to form two left and right rectangular grooves of the yarn state controller, which are used for the subsequent installation of the yarn state controller on other devices; a circle of inverted U-shaped grooves are provided on the left and right edges and the upper edge of the front shell, and the grooves are inlaid and connected with the inverted U-shaped bosses of the rear shell; at the same time, there is a groove on the lower edge of the front shell, and the groove is inlaid and connected with the boss at the lower edge of the rear shell.
[0017] Optionally, the upper surface of the front shell is provided with a first semicircular hole, and the first semicircular hole and the second semicircular hole on the upper surface of the rear shell can be combined into one circular hole, and the LED light on the circuit board can extend out of the self-sealed yarn state monitor through the first perforation and the second perforation. In the present invention, the LED light is extended out of the controller housing to facilitate viewing of the LED light on and off, which is more intuitive.
[0018] 3. Beneficial effects
[0019] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:
[0020] (1) The self-sealed yarn state monitor proposed in the embodiment of the present application has a display screen fixed on the front shell through a display screen fixing plate, and small baffles are provided on the upper and lower sides of the display screen fixing plate to better fix the display screen, making the display screen more secure and fit when installed; at the same time, the design of the display screen fixing plate eliminates the friction between the display screen and the circuit board, and increases the service life of the display screen and the circuit board. It has good sealing performance and has certain dustproof and waterproof functions. Through the design of the circuit board and the display screen, the operator can process the yarn through the LED light and the display screen, which greatly improves work efficiency and saves time and production costs.
[0021] (2) In the self-sealed yarn status monitor proposed in the embodiment of the present application, the key signal line on the key transparent plate passes through the front shell, the display screen, the display screen fixing plate, and reaches the interface of the key on the circuit board in sequence. Only 1.5-2 cm of wire is needed to complete the connection, and the contact surface between the wire and each module is small, which prevents the friction of the edge of each module on the wire, and the wire and the circuit board are easy to plug and unplug.
[0022] (3) The self-sealed yarn status monitor proposed in the embodiment of the present application, when the plug-in post is inserted into the closed magnetic coil, the closed magnetic coil generates an electrical signal due to magnetic induction, and the main control chip is used to receive the electrical signal induced by the closed magnetic coil, and control the power-on time to make the electric heating wire start to heat and melt the hot melt adhesive. The melted hot melt adhesive flows into the gap between the front shell and the rear shell, so that the tube to be inserted and the plug-in post are seamlessly connected, thereby improving the waterproof and dustproof effect between the front shell and the rear shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is an exploded diagram of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0024] Figure 2 This is a front view of the button transparent plate of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0025] Figure 3 This is a reverse side view of the button transparent plate of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0026] Figure 4 This is a structural diagram of a display screen fixing plate of a self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0027] Figure 5 1 is a structural diagram of the front housing of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0028] Figure 6 It is a back view of the circuit board of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0029] Figure 7 is a front view of a circuit board of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0030] Figure 8 1 is a reverse side view of the rear housing of the self-sealing yarn state monitor proposed in Example 1 of the present invention;
[0031] Fig. 9 A front view of the rear housing of the self-sealing yarn status monitor provided in Example 1 of the present invention;
[0032] Fig.10 is a cross-sectional view of the cover shell installation of the self-sealing yarn state monitor proposed in Example 2 of the present invention;
[0033] Fig.11 This is a control flow structure diagram of the main control chip of the self-sealing yarn status monitor proposed in Example 2 of the present invention.
[0034] 1. Transparent button plate, 2. Front shell, 3. Display screen, 4. Display screen fixing plate, 5. Baffle, 6. Sixth round hole, 7. Circuit board, 8. Fifth round hole, 9. Second rectangular hole, 10. Rear shell, 11. Screw hole, 12. Second semicircular hole, 13. Round button, 14. First semicircular hole, 15. Button wiring port, 16. First rectangular hole, 17. Second screw hole, 18. First screw hole, 19. First groove, 20. Third rectangular hole, 21. Second rectangular hole, 22. Inverted U-shaped groove, 23. Boss, 25, groove, 26, inverted U-shaped boss, 27, first circular hole, 28, second circular hole, 29, second groove, 30, circular step, 31, LED light, 33, main control chip, 34, button connection interface, 35, debugging interface, 36, 485 communication interface, 37, fuse installation interface, 38, power supply interface, 39, third circular hole, 40, fourth circular hole, 41, tube to be inserted, 42, hot melt adhesive ring, 43, plug column, 44, annular magnetic sheet, 45, closed magnetic coil, 46, heating wire, 48, power supply. DETAILED DESCRIPTION
[0035] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
[0036] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the invention are shown in the accompanying drawings. The words "first", "second", etc. described in the present invention are set for the convenience of describing the technical solution of the present invention, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] Example 1
[0038] Combined with Figure 1-11 As shown, a self-sealed yarn state monitor provided in this embodiment includes: a key transparent plate 1, a front housing 2, a display screen 3, a display screen fixing plate 4, a circuit board 7 and a rear housing 10; the key transparent plate 1 is attached to the front housing 2 by adhesive, the front surface of the key transparent plate 1 is provided with 5 circular keys 13, the rear surface of the key transparent plate 1 is provided with a rectangular key wiring port 15, and at the same time, a first rectangular hole 16 is provided at the position corresponding to the key wiring port 15 on the front housing 2, and a second rectangular hole 9 is provided on the circuit board 7, and the key signal lines of the 5 keys are connected to the corresponding 5 wiring ports on the circuit board 7 through the key wiring port 15, the first rectangular hole 16 on the front housing 2, and the second rectangular hole 21 on the circuit board 7. The key transparent plate 1 is provided with a key signal line.
[0039] There is a third rectangular hole 20 with the same length and width as the display screen 3 on the left side of the front surface of the front housing 2, and there is a small rectangular hole above the rectangular hole. The wiring on the key transparent plate 1 is connected to the circuit board 7 through the hole, and a rectangular groove is also provided at the corresponding position on the circuit board 7 for the wiring to pass through; there are two first screw holes 18 on the left and right sides of the third rectangular hole 20 on the rear surface of the front housing 2, and one first screw hole 18 on each side is provided above and below, for a total of four screw holes; there are four sixth round holes 6 at corresponding positions on the display screen fixing plate 4, and the four round holes and screw holes can be connected by screws to fix the display screen 3 on the display screen fixing plate 4. Between the plate 4 and the front housing 2, two rectangular baffles 5 are provided above and below the display screen fixing plate 4. The display screen 3 can be fixedly placed between the front housing 2 and the display screen fixing plate 4. Four round holes are provided on the display screen fixing plate 4. The four third round holes 39 of the circuit board 7 can be placed on the round step 30. The round holes and screw holes are connected together by screws to fix the circuit board 7; including two first round holes 27 on the top and two second round holes 28 on the bottom, the first round holes 27 are slightly larger than the second round holes 28; four fifth round holes 8 are provided at the corresponding positions of the four corners of the circuit board 7, and two small interfaces for screen display lights are provided below the display screen 3. Two mounting cylinders are provided on the display screen 3, one of which can pass through the first round hole 27 and connect with the two third round holes 39 on the circuit board 7; the other can extend to the circuit board 7 through the second round hole 28 and be welded to the two fourth round holes 40 on the circuit board 7. There are four second screw holes 17 at the four corners of the rear surface of the front shell 2. The edges of the second screw holes 17 are provided with circular steps 30 that are shorter than the screw holes. The four second screw holes 17 are larger in diameter than the four screw holes on the sides of the third rectangular hole 20. A first semicircular hole 14 is provided on the upper surface of the front shell 2. The first semicircular hole 14 and the second semicircular hole 12 on the upper surface of the rear shell 10 can be combined into one circular hole. The LED light 31 on the circuit board 7 can extend out of the yarn state controller through the first perforation and the second perforation. Two long first grooves 19 are provided at the lower sides of the front shell 2, and the two first grooves 19 and the two second grooves 29 on the rear shell 10 correspond to form two left and right rectangular grooves 25 of the yarn state controller, which are used for the subsequent installation of the yarn state controller on other equipment; a circle of inverted U-shaped grooves 22 are provided on the left and right edges and the upper edge of the front shell 2, and the inverted U-shaped grooves 22 are inlaid and connected with the inverted U-shaped boss 26 of the rear shell 10; at the same time, there is a groove 25 at the lower edge of the front shell 2, and the groove 25 is inlaid and connected with the boss 23 at the lower edge of the rear shell 10.
[0040] The circuit board 7 mainly includes a main control chip 33, a mainboard control circuit, a power supply 48 and a signal interface circuit. The mainboard control circuit is mainly developed through the main control chip 33, and the signal interface circuit mainly includes a 485 communication interface 36, a power interface 38, a key connection interface 34 and a debugging interface 35; the 485 communication interface 36, the power interface 38, the key connection interface 34 and the debugging interface 35 are all integrated on the circuit board 7. The power interface circuit mainly supplies power to the circuit board 7 through the power interface 38 and transmits signals. After collecting and counting the information transmitted by the yarn state detector, it is processed. If the data is abnormal, an alarm will be issued and displayed through an LED light. The 485 communication interface 36, the power interface 38 and the fuse installation interface 37 are arranged in parallel and horizontally on one side of the circuit board 7. The debugging interface 35 and the main control chip 33 are located at the other end of the circuit board 7. The 485 communication interface 36 is used for external communication lines, and the fuse installation interface 37 is used to install fuses. The main control chip 33 and the power interface 38 are electrically connected to the 485 communication interface 36 , the power interface 38 , the key connection interface 34 , the fuse installation interface 37 , the display screen 3 and the debugging interface 35 .
[0041] Four screw holes 11 are provided at the four corners of the rear shell 10. A step with a slightly larger aperture is provided on the upper edge of the screw hole to allow the screw nut to be installed without exposing the rear surface of the rear shell 10. It is connected to the front shell 2 by screws to fix the circuit board 7. The second semicircular hole 12 on the upper surface of the rear shell 10 corresponds to the first semicircular hole 14 on the front shell. Two square holes are provided on the left side of the rear shell 10. The square hole on the upper volume is slightly larger. It is mainly used to correspond to the 485 communication interface 36 and the fuse installation interface 37 on the circuit board 7. There is a first rectangular hole 16 below the square hole. The power interface 38 on the circuit board 7 can be connected to the host computer through this first rectangular hole 16; there is a vertical second rectangular hole 21 in the middle of the rear shell 10. The debugging interface 35 on the circuit board 7 can be connected to the computer through the second rectangular hole 21 for program burning and online debugging.
[0042] Example 2
[0043] like Fig.10 and Fig.11As shown, the difference between this embodiment 2 and embodiment 1 is that the front shell 2 is provided with a tube to be inserted 41 adjacent to the outer periphery of the front shell 2, and a hot melt adhesive ring 42 is adhered to the inner wall of the tube to be inserted 41; the rear shell 10 is provided with a plug 43 adjacent to the outer periphery of the rear shell 10 and adapted to the tube to be inserted 41, and a ring-shaped magnetic sheet 44 is provided in the plug 43. A closed magnetic coil 45 and a heating wire 46 are provided in the tube to be inserted 41, and the circuit board 7 is integrated with a main control chip 33 and a power supply 48, and the closed magnetic coil 45 and the heating wire 46 are electrically connected to the main control chip 33 and the power supply 48 through a wire; the main control chip 33 is used to receive the electrical signal induced by the closed magnetic coil 45, and control the power supply 48 to start the preset time, so that the heating wire 46 starts to heat and melt the hot melt adhesive ring 42.
[0044] When this embodiment is implemented, when the plug 43 is inserted into the closed magnetic coil 45, the closed magnetic coil 45 generates an electrical signal due to magnetic induction. The main control chip 33 is used to receive the electrical signal induced by the closed magnetic coil 45, and control the power supply 48 to start at a predetermined time, so that the heating wire 46 starts to heat and melt the hot melt adhesive ring 42. The melted liquid of the hot melt adhesive ring 42 flows into the gap between the front shell 2 and the rear shell 10, so that the tube 41 to be inserted and the plug 43 are seamlessly connected, thereby improving the waterproof and dustproof effect between the front shell 2 and the rear shell 10.
[0045] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.
Claims
1. A self-sealing yarn status monitor, characterized in that: include: A key transparent plate, a front housing, a display screen, a display screen fixing plate, a circuit board and a rear housing; the front housing and the rear housing form a sealed cover shell; the circuit board is installed in the cover shell; The display screen is fixed between a display screen fixing plate and a front shell body, and two rectangular baffles are arranged above and below the display screen fixing plate; a first semicircular hole is arranged on the upper surface of the front shell body, and the first semicircular hole and the second semicircular hole on the upper surface of the rear shell body can be combined into a circular hole, and the LED light on the circuit board can extend out of the yarn status monitor through the first semicircular hole and the second semicircular hole; the key transparent plate is attached to the front shell body by bonding glue; a third rectangular hole with the same length and width as the display screen is arranged on the left side of the front surface of the front shell body, and two first screw holes are arranged on the left and right sides of the third rectangular hole on the rear surface of the front shell body, and one first screw hole on each side is arranged above and below, for a total of four screw holes; four sixth circular holes are arranged at corresponding positions on the display screen fixing plate, and the four circular holes and screw holes can be connected by screws to fix the display screen between the display screen fixing plate and the front shell body; four fifth circular holes are arranged at corresponding positions at the four corners of the circuit board There are four round holes, four second screw holes at the four corners of the rear surface of the front shell, and the edges of the second screw holes are provided with round steps that are shorter than the screw holes, and the four fifth round holes of the circuit board are placed on the round steps; there are four screw holes at the four corners of the rear shell, and the upper edges of the screw holes are provided with steps with slightly larger apertures, allowing the screw caps to be installed without exposing the rear surface of the rear shell, which are connected to the front shell by screws to fix the circuit board; two long first grooves are provided at the lower sides of the front shell, and these two first grooves and the two second grooves on the rear shell correspond to form two left and right rectangular grooves for yarn status monitoring, which are used for the subsequent installation of the yarn status monitor on other equipment; a circle of inverted U-shaped grooves are provided on the left and right edges and the upper edge of the front shell, and the inverted U-shaped grooves are inlaid and connected with the inverted U-shaped bosses of the rear shell; at the same time, there is a groove at the lower edge of the front shell, and the groove is inlaid and connected with the boss at the lower edge of the rear shell; The front shell is provided with a tube to be inserted adjacent to the outer periphery of the front shell, and a hot-melt adhesive ring is adhered to the inner wall of the tube to be inserted; the rear shell is provided with a plug-in column adjacent to the outer periphery of the rear shell and adapted to the tube to be inserted, and the plug-in column is provided with an annular magnetic sheet, and the tube to be inserted is provided with a closed magnetic coil and a heating wire, the circuit board is integrated with a main control chip and a power supply, and the closed magnetic coil and the heating wire are electrically connected to the main control chip and the power supply through a wire; the main control chip is used to receive the electrical signal induced by the closed magnetic coil, and control the predetermined time for the power to be turned on, so that the heating wire starts to heat and the hot-melt adhesive ring melts.
2. The self-sealing yarn state monitor according to claim 1, characterized in that: The circuit board is provided with a plurality of communication interfaces, and the communication interfaces can be connected to the yarn state detector via a line to transmit information; the communication interface can be connected to the communication interface of the yarn state detector via the rear housing.
3. The self-sealing yarn state monitor according to claim 1, characterized in that: The circuit board is provided with a key connection interface, and the key transparent plate is provided with a key signal line; the key signal line passes through the front housing, the display screen, the display screen fixing plate in sequence and is connected to the key connection interface on the circuit board.
4. The self-sealing yarn state monitor according to claim 2, characterized in that: The front surface of the button transparent plate is provided with a plurality of circular buttons.
5. The self-sealing yarn state monitor according to claim 1, characterized in that: A first rectangular hole is provided on the front shell at a position corresponding to the key wiring port, and a second rectangular hole is provided on the circuit board. The key signal line of the key passes through the key wiring port, the first rectangular hole on the front shell, and the second rectangular hole on the circuit board to be connected to the corresponding wiring port on the circuit board.
6. The self-sealing yarn state monitor according to claim 3, characterized in that: The wiring on the key transparent plate is connected to the circuit board through the hole, and a rectangular groove is also provided at a corresponding position on the circuit board for the wiring to pass through.
7. The self-sealing yarn state monitor according to claim 1, characterized in that: The circuit board is integrated with a signal interface circuit, a main control chip and a power interface. The signal interface circuit includes a communication interface, a key connection interface and a debugging interface. The power interface circuit supplies power to the circuit board through the interface and transmits signals.
