Anti-static device and flat knitting machine

Abstract

The utility model discloses an anti-static device and a flat knitting machine, the anti-static device is applied to the flat knitting machine, and the anti-static device comprises a switch plate arranged on the flat knitting machine; the chip assembly is arranged on the switch board; the sensing piece is connected with an operating rod of the flat knitting machine and used for triggering the chip assembly to control the working state of the flat knitting machine; wherein a metal layer is arranged on the side, close to the induction piece, of the switch board, the distance between the metal layer and the induction piece is smaller than the distance between the chip assembly and the induction piece, and the metal layer is connected with a power source positive electrode or a power source negative electrode of the switch board or electrically and used for discharging static electricity on the induction piece when the operating rod is operated. Through the mode, the structure is simplified, the cost is reduced, the problem of static electricity prevention failure caused by neglected loading or long-term aging of the metal wire connected with the electrical ground is avoided, and the reliability of the static electricity prevention function is improved.

Description

Technical Field

[0001] This application relates to the field of flat knitting machine technology, and in particular to an antistatic device and a flat knitting machine. Background Technology

[0002] In the field of flat knitting machines, electrostatic discharge (ESD) is a common problem, especially when operators come into contact with the equipment. When operators touch the operating rods of the flat knitting machine, the static electricity on their bodies may be transmitted through the operating rods to the sensing device, which in turn affects the sensor chip connected to the sensing device, leading to chip damage or a decrease in equipment performance.

[0003] To address this issue, existing anti-static designs mainly include two approaches: the first connects the operating lever to a metal machine base via a metal connection mechanism, and then grounds the machine base to discharge static electricity; the second connects the operating lever to the machine base via a metal wire and grounds it. However, these designs have significant limitations. In the first approach, due to cost-saving requirements, the metal connection mechanism has been replaced with a non-metallic one, causing the anti-static function to fail. The second approach suffers from issues such as missing or aging metal wires connected to the electrical ground, reducing the reliability of the anti-static function. Utility Model Content

[0004] This application mainly provides an anti-static device and a flat knitting machine to solve the problems of the failure of anti-static function when metal connection mechanisms are replaced with non-metal connection mechanisms due to the need to reduce equipment costs; and the problems of missing installation or long-term aging of metal wires connected to electrical ground, which reduce the reliability of anti-static function.

[0005] This application provides an antistatic device for use in a flat knitting machine, comprising:

[0006] A switch panel is installed on the flat knitting machine;

[0007] The chip assembly is mounted on the switch board;

[0008] A sensor, connected to the operating lever of the knitting machine, is used to trigger the chip assembly to control the working state of the knitting machine;

[0009] The switch board has a metal layer on the side near the sensor. The distance between the metal layer and the sensor is less than the distance between the chip assembly and the sensor. The metal layer is connected to the positive or negative power supply of the switch board or to the ground, and is used to discharge static electricity on the sensor when the operating lever is operated.

[0010] The operating lever is used to be operated, the static electricity on the sensor is discharged through the metal layer, the sensor moves towards the chip assembly, triggering the chip assembly and controlling the working state of the knitting machine.

[0011] The switch board is provided with a circuit board, and the side of the circuit board near the sensing element has a window for exposing the metal layer.

[0012] The metal layer has a welded component on the side closest to the sensing element, and the distance between the welded component and the sensing element is less than the distance between the metal layer and the sensing element.

[0013] One end of the sensor is connected to the operating lever, and the other end of the sensor is correspondingly disposed with the switch plate.

[0014] The other end of the sensor is positioned corresponding to the window opening, and the chip assembly is not triggered.

[0015] The lever is used to be operated, and the static electricity on the sensor is transmitted to the metal layer through the other end of the sensor. The other end of the sensor moves toward the chip assembly to trigger the chip assembly.

[0016] The chip assembly includes a first sensor chip, a second sensor chip, and a third sensor chip. The distance between the first sensor chip and the other end of the sensing element is greater than the distance between the window and the other end of the sensing element; the distance between the second sensor chip and the other end of the sensing element is greater than the distance between the window and the other end of the sensing element; and the distance between the third sensor chip and the other end of the sensing element is greater than the distance between the window and the other end of the sensing element.

[0017] The sensing element includes a magnetic sheet, and the chip assembly includes a magnetic sensor chip; the operating lever is used to be operated, and the magnetic sheet moves toward the magnetic sensor chip to trigger the magnetic sensor chip.

[0018] This application also provides a flat knitting machine, including the antistatic device described above.

[0019] The beneficial effects of this application are as follows: The anti-static device of this application includes: a switch plate, which is installed on the flat knitting machine; a chip assembly, which is installed on the switch plate; and a sensor, which is connected to the operating lever of the flat knitting machine and is used to trigger the chip assembly to control the working state of the flat knitting machine; wherein, a metal layer is provided on the side of the switch plate near the sensor, and the distance between the metal layer and the sensor is less than the distance between the chip assembly and the sensor, and the metal layer is connected to the positive terminal, negative terminal, or electrical ground of the power supply of the switch plate, so as to discharge the static electricity on the sensor when the operating lever is operated. This application provides a metal layer on the side of the switch board near the sensor, and connects this metal layer to the positive or negative power supply terminal or electrical ground of the switch board. The distance between the metal layer and the sensor is less than the distance between the chip assembly and the sensor. Static electricity can be discharged through the metal layer when the operating lever is operated. Compared with existing anti-static designs, the anti-static device of this application does not require additional metal connection mechanisms or metal wires, which simplifies the structure, reduces costs, and avoids the problem of anti-static failure caused by the omission or long-term aging of the metal wire connected to the electrical ground, thereby improving the reliability of the anti-static function. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of an embodiment of the antistatic device provided in this application. Detailed Implementation

[0022] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0027] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0028] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0029] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a connection between two components or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0030] Existing anti-static designs mainly include two schemes: the first is to connect the operating lever to a metal machine base via a metal connection mechanism, and then ground the metal machine base to achieve static discharge; the second is to connect the operating lever to the metal machine base via a metal wire and ground it. However, these designs have obvious limitations. In the first scheme, due to cost reduction requirements, the metal connection mechanism has been replaced with a non-metallic connection mechanism, resulting in the failure of the anti-static function; the second scheme suffers from problems such as missing installation of the metal wire connected to the electrical ground or long-term aging, reducing the reliability of the anti-static function.

[0031] This application provides an anti-static device; please refer to [link / reference]. Figure 1 As shown, Figure 1 This is a schematic diagram of an embodiment of the antistatic device provided in this application. The antistatic device 1 of this embodiment is applied to a flat knitting machine and includes a switch board 10, a chip assembly 20, and a sensor 30.

[0032] The switch plate 10 is mounted on the flat knitting machine. The switch plate 10 is used to identify the operation of the operating lever of the flat knitting machine, including but not limited to a non-contact switch plate.

[0033] The chip assembly 20 is disposed on the switch board 10, that is, the chip assembly 20 is mounted on the surface of the switch board 10. The chip assembly 20 includes, but is not limited to, a magnetic sensor chip, a Hall sensor chip, or an infrared sensor chip. The mounting method of the chip assembly 20 includes, but is not limited to, soldering.

[0034] The sensor 30 is connected to the operating lever (not shown) of the knitting machine and is used to trigger the chip assembly 20 to control the working state of the knitting machine.

[0035] The switch board 10 has a metal layer (not shown) on the side near the sensor 30. The distance between the metal layer and the sensor 30 is less than the distance between the chip assembly 20 and the sensor 30. The metal layer is connected to the positive terminal, negative terminal or electrical ground of the power supply of the switch board 10, and is used to discharge static electricity on the sensor 30 when the operating lever is operated.

[0036] In some embodiments, when the operator operates the operating lever of the knitting machine, static electricity is transmitted through the operating lever to the sensing element 30 connected to the operating lever. According to the principle of static electricity release nearby, the static electricity on the sensing element 30 first breaks down the air and is discharged to the metal layer of the switch board 10. The metal layer discharges the static electricity through the power supply electrical network connected to the positive terminal, negative terminal, or ground of the power supply of the switch board 10, so as to achieve the anti-static function. At this time, since the static electricity on the sensing element 30 has been discharged through the metal layer, the sensing element 30 can trigger the chip assembly 20 again, which can avoid damage to the chip assembly 20.

[0037] In this embodiment, a metal layer is provided on the side of the switch board 10 near the sensor 30, and the metal layer is connected to the positive terminal, negative terminal, or electrical ground of the switch board 10. The distance between the metal layer and the sensor 30 is less than the distance between the chip assembly 20 and the sensor 30. Static electricity can be discharged through the metal layer when the operating lever is operated. Compared with the existing anti-static design, the anti-static device 1 of this application does not require the connection of additional metal connection mechanism or metal wire, which simplifies the structure, reduces the cost, and avoids the problem of anti-static failure caused by the omission or long-term aging of the metal wire connected to the electrical ground, thereby improving the reliability of the anti-static function.

[0038] According to some embodiments of this application, the operating lever is used to be operated, the static electricity on the sensor 30 is discharged through the metal layer, the sensor 30 moves toward the chip assembly 20, triggering the chip assembly 20 and controlling the working state of the knitting machine.

[0039] In some embodiments, at the moment the operator operates the control lever, the sensor 30 is in the initial position, and the static electricity on the sensor 30 is discharged through the metal layer closer to it. The sensor 30 then moves closer to the chip assembly 20. When the sensor 30 moves to the trigger range of the chip assembly 20, the chip assembly 20 is triggered. At this time, the chip assembly 20 generates a signal change to control the working state of the flat knitting machine.

[0040] According to some embodiments of this application, such as Figure 1 As shown, the switch board 10 of this embodiment is provided with a circuit board (not shown in the figure). The side of the circuit board near the sensing element 30 is provided with a window 11, which is used to expose the metal layer.

[0041] The circuit board is located on the side of the switch plate 10 near the sensing element 30, and the circuit board is installed by means including but not limited to soldering.

[0042] In some embodiments, the integrated circuit board on the switch board 10 has a metal layer that is an internal component of the circuit board, such as copper foil metal, and the outer surface of the circuit board is usually provided with a protective layer (green oil layer); in this case, a window 11 is provided on the protective layer on the side of the circuit board near the sensing element 30 to expose the internal metal layer.

[0043] This embodiment provides an efficient discharge path for static electricity by setting a window 11 on the circuit board of the switch board 10 to expose the metal layer. This design not only improves the static discharge efficiency and enhances the protection of the chip assembly 20, but also optimizes the structural design and reduces costs.

[0044] According to some embodiments of this application, a solder joint (not shown) is provided on the side of the metal layer near the sensing element 30, and the distance between the solder joint and the sensing element 30 is smaller than the distance between the metal layer and the sensing element 30. The solder joint includes, but is not limited to, an overlay of tin.

[0045] In this embodiment, the welding component enables static electricity to be transferred from the inductor 30 to the metal layer more quickly. Since the distance between the welding component and the inductor 30 is smaller than the distance between the metal layer and the inductor 30, the path impedance encountered by static electricity during the transfer process is smaller, thereby enabling more efficient discharge of static electricity and reducing static electricity accumulation.

[0046] According to some embodiments of this application, such as Figure 1 As shown, in this embodiment, one end 301 of the sensing element 30 is connected to the operating lever, and the other end 302 of the sensing element 30 is correspondingly disposed with the switch plate 10.

[0047] In some embodiments, one end 301 of the sensing element 30 is connected to the operating lever of the horizontal machine, and the other end 302 of the sensing element 30 is correspondingly arranged with the switch plate 10 in the axial direction of the switch plate 10; at this time, there is a preset distance between the other end 302 of the sensing element 30 and the switch plate 10, so as to realize non-contact triggering of the switch plate 10.

[0048] According to some embodiments of this application, such as Figure 1 As shown, in this embodiment, the other end 302 of the sensor 30 is correspondingly set with the window 11, and the chip component 20 is not triggered.

[0049] In some embodiments, the other end 302 of the sensing element 30 is disposed axially opposite to the opening 11 on the switch plate 10, for example... Figure 1 As shown, the other end 302 of the sensor 30 is located above the window 11; at this time, the sensor 30 is in the initial position and the chip assembly 20 is not triggered.

[0050] According to some embodiments of this application, the lever is used to be operated, and the static electricity on the sensor 30 is transmitted to the metal layer through the other end 302 of the sensor 30. The other end 302 of the sensor 30 moves toward the chip assembly 20 to trigger the chip assembly 20.

[0051] In some embodiments, at the moment the operator operates the control lever, the sensor 30 is in the initial position. Since the distance between the other end 302 of the sensor 30 and the window 11 is less than the distance between the other end 302 of the sensor 30 and the chip assembly 20, after the static electricity is discharged by being transmitted to the metal layer through the other end 302 of the sensor 30, the other end 302 of the sensor 30 moves toward the chip assembly 20, and the chip assembly 20 is triggered.

[0052] According to some embodiments of this application, such as Figure 1 As shown, the chip assembly 20 in this embodiment includes a first sensor chip 21, a second sensor chip 22, and a third sensor chip 23. The distance between the first sensor chip 21 and the other end 302 of the sensing element 30 is greater than the distance between the window 11 and the other end 302 of the sensing element 30; the distance between the second sensor chip 22 and the other end 302 of the sensing element 30 is greater than the distance between the window 11 and the other end 302 of the sensing element 30; and the distance between the third sensor chip 23 and the other end 302 of the sensing element 30 is greater than the distance between the window 11 and the other end 302 of the sensing element 30.

[0053] Among them, the first sensor chip 21, the second sensor chip 22 and the third sensor chip 23 include, but are not limited to, magnetic sensor chips, Hall sensor chips or infrared sensor chips.

[0054] In some embodiments, the first sensor chip 21, the second sensor chip 22, and the third sensor chip 23 correspond to the fast speed, slow speed, and stop speed of the operating lever, respectively; the operating lever is operated, and the other end 302 of the sensing element 30 moves toward the first sensor chip 21, the second sensor chip 22, or the third sensor chip 23 to trigger the sensor chip of the corresponding speed, thereby controlling the working state of the flat knitting machine.

[0055] In this embodiment, by setting the distance between the window 11 and the other end 302 of the sensing element 30 to be smaller than the distance between each sensor chip and the sensing element 30, it is ensured that static electricity is discharged to the metal layer through the window 11 during the transmission process, thereby effectively protecting the sensor chip from static damage.

[0056] According to some embodiments of this application, the sensing element 30 includes a magnetic sheet, and the chip assembly 20 includes a magnetic sensor chip; an operating lever is used to be operated, and the magnetic sheet is moved toward the magnetic sensor chip to trigger the magnetic sensor chip.

[0057] In some embodiments, one end of the magnetic sheet is connected to the operating lever of the flat knitting machine, the operating lever is used to be operated, and the other end of the magnetic sheet moves toward the magnetic sensor chip to trigger the magnetic sensor chip and control the working state of the flat knitting machine.

[0058] Another embodiment of this application provides a flat knitting machine, including the antistatic device 1 described in the above embodiment.

[0059] In summary, this application provides a metal layer on the side of the switch board 10 near the sensor 30, and connects this metal layer to the positive or negative power supply terminal or electrical ground of the switch board 10. The distance between the metal layer and the sensor 30 is less than the distance between the chip assembly 20 and the sensor 30. Static electricity can be discharged through the metal layer when the operating lever is operated. Compared with existing anti-static designs, the anti-static device 1 of this application does not require additional metal connection mechanisms or metal wires, which simplifies the structure, reduces costs, and avoids the problem of anti-static failure caused by the omission or long-term aging of the metal wire connected to the electrical ground, thereby improving the reliability of the anti-static function.

[0060] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. An antistatic device, characterized in that, Applied to flat knitting machines, including: A switch panel is installed on the flat knitting machine; The chip assembly is mounted on the switch board; A sensor, connected to the operating lever of the knitting machine, is used to trigger the chip assembly to control the working state of the knitting machine; The switch board has a metal layer on the side near the sensor. The distance between the metal layer and the sensor is less than the distance between the chip assembly and the sensor. The metal layer is connected to the positive or negative power supply of the switch board or to the ground, and is used to discharge static electricity on the sensor when the operating lever is operated.

2. The antistatic device according to claim 1, characterized in that, The operating lever is used to be operated, the static electricity on the sensor is discharged through the metal layer, the sensor moves towards the chip assembly, triggering the chip assembly and controlling the working state of the knitting machine.

3. The antistatic device according to claim 1, characterized in that, The switch board is provided with a circuit board, and the side of the circuit board near the sensing element has a window for exposing the metal layer.

4. The antistatic device according to claim 3, characterized in that, A welded component is provided on the side of the metal layer near the sensing element, and the distance between the welded component and the sensing element is smaller than the distance between the metal layer and the sensing element.

5. The antistatic device according to claim 3, characterized in that, One end of the sensor is connected to the operating lever, and the other end of the sensor is correspondingly arranged with the switch plate.

6. The antistatic device according to claim 5, characterized in that, The other end of the sensor is positioned corresponding to the window opening, and the chip assembly is not triggered.

7. The antistatic device according to claim 6, characterized in that, The lever is used to be operated, and static electricity on the sensor is transmitted to the metal layer through the other end of the sensor. The other end of the sensor moves toward the chip assembly to trigger the chip assembly.

8. The antistatic device according to claim 6, characterized in that, The chip assembly includes a first sensor chip, a second sensor chip, and a third sensor chip. The distance between the first sensor chip and the other end of the sensing element is greater than the distance between the window and the other end of the sensing element; the distance between the second sensor chip and the other end of the sensing element is greater than the distance between the window and the other end of the sensing element; and the distance between the third sensor chip and the other end of the sensing element is greater than the distance between the window and the other end of the sensing element.

9. The antistatic device according to claim 8, characterized in that, The sensing element includes a magnetic sheet, and the chip assembly includes a magnetic sensor chip; the operating lever is used to be operated, and the magnetic sheet is moved toward the magnetic sensor chip to trigger the magnetic sensor chip.

10. A flat knitting machine, characterized in that, Includes the antistatic device as described in any one of claims 1-9.

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