An anti-interference touch screen functional sheet

Abstract

The present invention discloses an anti-interference touch screen functional sheet, which relates to the technical field of touch screen functional sheets and includes a housing. One side of the housing is fixedly connected with a protective shell. A display port is arranged on the upper surface of the housing. Guide rods are fixedly connected to the inner walls on both sides of the housing. One end of each guide rod is slidably connected with a moving frame. A second bottom plate is fixedly connected to the upper surface of the moving frame. A lower electrode plate is arranged on the upper surface of the second bottom plate, and an upper electrode plate is arranged on the upper surface of the lower electrode plate. The operation of the first transparent plate, the lower electrode plate, the upper electrode plate and the second bottom plate of the anti-interference touch screen functional sheet disclosed by the present invention requires a certain pressure. Usually, when a numerical control machine tool is machining parts, oil stains and water droplets drip onto the first transparent plate, and the oil stains and water droplets cannot generate input signals, achieving the effect of improving the anti-interference performance of the touch screen under harsh conditions, and at the same time not affecting the precise signal input and multi-touch operations of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of touch screen functional sheets, and particularly to an anti-interference touch screen functional sheet. Background Art

[0002] A touch screen functional sheet is an electronic component used for a touch screen. It is usually made of a layer of glass coated with an ITO film, which can sense capacitance changes for realizing touch operations. The functional sheet is the core part of the touch screen. It is used in combination with a traditional printed circuit board to form the whole touch screen. After the functional sheet is made into small pieces of glass through processes such as screen printing and cutting, a complete touch screen is finally formed. Touch screen functional sheets are widely used in various electronic devices, including public information inquiry, multimedia information systems, medical instruments, industrial automatic control, etc.

[0003] The main differences between capacitive touch screens and resistive touch screens include that resistive touch screens work through pressure sensing, while capacitive touch screens use capacitive touch technology and work through the micro electrical signals of the human body. In terms of accuracy and response speed: capacitive touch screens have higher accuracy and can more accurately identify the touch position, and the response speed is also faster. General numerical control machine tools use capacitive touch screens. In the complex environment of numerical control machining, various dirt such as cooling oil is likely to contaminate the display screen, causing the touch screen to generate false signals, resulting in errors in part processing and unable to meet the actual requirements. Summary of the Invention

[0004] The present invention discloses an anti-interference touch screen functional sheet, aiming to solve the technical problem that in the complex environment of numerical control machining when general numerical control machine tools use capacitive touch screens, various dirt such as cooling oil is likely to contaminate the display screen, causing the touch screen to generate false signals and resulting in errors in part processing.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] An anti-interference touch screen functional sheet, comprising a housing, one side of the housing is fixedly connected with a protective shell, the upper surface of the housing is provided with a display port, guide rods are fixedly connected to the inner walls on both sides of the housing, one end of the guide rod is slidably connected with a moving frame, the upper surface of the moving frame is fixedly connected with a second bottom plate, a lower electrode plate is arranged on the upper surface of the second bottom plate, an upper electrode plate is arranged on the upper surface of the lower electrode plate, a first transparent plate is arranged on the upper surface of the upper electrode plate, a plurality of first scanning lines are arranged on the upper surface of the lower electrode plate, a plurality of lower electrodes are arranged on the first scanning lines, a plurality of second scanning lines are arranged on the upper surface of the upper electrode plate, a plurality of upper electrodes are arranged on the second scanning lines, a second interface is arranged at one side edge of the lower electrode plate, a mounting frame is fixedly connected to the bottom of the inner wall of the housing, a fixing frame is fixedly connected to one side of the mounting frame, a first bottom plate is fixedly connected to the upper surface of the fixing frame, a lower capacitor plate is arranged on the upper surface of the first bottom plate, a partition plate is arranged on the upper surface of the lower capacitor plate, an upper capacitor plate is arranged on the upper surface of the partition plate, a second transparent plate is arranged on the upper surface of the upper capacitor plate, a plurality of third scanning lines are arranged on the upper surface of the lower capacitor plate, a plurality of lower capacitors are arranged on the third scanning lines, a plurality of fourth scanning lines are arranged on the upper surface of the upper capacitor plate, a plurality of upper capacitors are arranged on the fourth scanning lines, a first interface is arranged at one side edge of the lower capacitor plate, and a mounting frame is fixedly connected to the bottom of the first bottom plate;

[0007] A position-changing mechanism is installed on one side of the moving frame, and the position-changing mechanism is used to change the positions of the lower electrode plate, the upper electrode plate and the second bottom plate;

[0008] A cleaning mechanism is installed at a position near the gear at one end edge of the moving frame, and the cleaning mechanism is used to clean the surface dirt of the second transparent plate;

[0009] A sealing mechanism is installed at the other end edge of the moving frame, and the sealing mechanism seals the gap generated after the positions of the lower electrode plate, the upper electrode plate and the second bottom plate change;

[0010] A collecting mechanism is installed on the inner wall at one end of the housing, and the collecting mechanism is used to cooperate with the cleaning mechanism to collect dirt.

[0011] A certain gap is designed between the lower electrode plate and the upper electrode plate, the positions of the first scanning line and the second scanning line are perpendicular, the lower electrode and the upper electrode are electrically connected to the first scanning line and the second scanning line respectively, the first scanning line and the second scanning line are electrically connected to the second interface respectively, the positions of the third scanning line and the fourth scanning line are perpendicular, the upper capacitor and the lower capacitor are electrically connected to the third scanning line and the fourth scanning line respectively, and the third scanning line and the fourth scanning line are electrically connected to the first interface respectively.

[0012] In a preferred embodiment, the commutation mechanism includes a rack fixedly connected to one side edge of the moving frame, a fixed block fixedly connected to the bottom of the inner wall of the housing, a motor fixedly connected to the top of the fixed block, a worm fixedly connected to one end of the output shaft of the motor, a mounting rod fixedly connected to one side of the fixed block, and a gear rotatably connected to one end of the mounting rod.

[0013] In a preferred embodiment, the cleaning mechanism includes a push plate fixedly connected to one side of the moving frame, a connecting rod fixedly connected to the top of the push plate, a rotating plate rotatably connected to one end of the connecting rod, a cleaning roller rotatably connected to the bottom end of the rotating plate, a cleaning plate fixedly connected to the bottom end of the rotating plate near the cleaning roller, and a turning spring fixedly connected to the outer wall of one side of the moving frame near the push plate.

[0014] One end of the push plate is provided with a clamping groove, the top end of the rotating plate is provided with a linkage groove, a stop bar is provided on the inner wall of one side of the rotating plate, the position of the stop bar is on the same horizontal line as the linkage groove on the rotating plate, and the other end of the turning spring is fixedly connected to the bottom of the rotating plate.

[0015] In a preferred embodiment, the sealing mechanism includes a fixing plate fixedly connected to the bottom of the inner wall of the housing, a rotating rod rotatably connected to one side of the fixing plate, a sealing roll provided at one end of the rotating rod, a torsion spring provided at one end of the rotating rod outside one end of the sealing roll, a knob rotatably connected to the other side of the fixing plate, a setting plate fixedly connected to the outer wall of one side of the housing above the knob, and a threaded rod threadedly connected through the upper surface of the setting plate.

[0016] The other end of the sealing roll is fixedly connected to one side edge of the first transparent plate, a connecting frame is fixedly connected to the upper surface of the housing near the torsion spring, the shape of the connecting frame is an inverted U shape, one end of the rotating rod is fixedly connected to the knob, and one end of the torsion spring is fixedly connected to the connecting frame.

[0017] In a preferred embodiment, the collection mechanism includes a collection box fixedly connected to the inner wall of the other end, a connecting plate fixedly connected to the inner wall of the collection box, a moving plate rotatably connected to one side of the connecting plate, a stop bar designed on one side of the top of the moving plate, a fixed rod designed at the bottom of the stop bar on one side of the top of the moving plate, a cleaning spring fixedly connected to one end of the fixed rod, and a cleaning port provided at the bottom of the housing near the collection box.

[0018] The other end of the cleaning spring is fixedly connected to the connecting plate, an arc-shaped plate is fixedly connected to one side of the moving plate, an arc-shaped opening is provided at the bottom of the collection box, the arc-shaped plate just blocks the arc-shaped opening, and the stop bar is used in cooperation with the clamping groove.

[0019] It can be seen from the above that the anti-interference touch screen functional sheet provided by the present invention has the following technical effects.

[0020] First, when a finger touches the first transparent plate, it will squeeze the upper electrode plate, causing the upper electrode plate to deform locally. The upper electrode at this position contacts the lower electrode on the lower electrode plate to form a current. The first scanning line and the second scanning line determine the scanning position, and the signal is converted into a digital signal and transmitted to the computer to perform related operations. Since the operation of the first transparent plate, the lower electrode plate, the upper electrode plate and the second bottom plate requires a certain amount of pressure, when the CNC machine tool is processing parts, oil and water droplets fall on the first transparent plate and no input signal can be generated, which improves the anti-interference performance of the touch screen under harsh conditions, and at the same time does not affect the precise signal input and multi-touch operations of the device.

[0021] Secondly, when the moving frame moves forward, the linkage groove on the top of the rotating plate squeezes the baffle bar, and the rotating plate rotates to make the cleaning roller and the cleaning plate close to the surface of the second transparent plate. Through the relative movement of the moving frame and the second transparent plate, the cleaning roller continuously cleans the surface of the second transparent plate, and the cleaning plate removes the dirt, thereby cleaning the surface of the second transparent plate and preventing the dirt on the second transparent plate from affecting the display effect.

[0022] Third: the card slot on the push plate is pressed against the baffle rod, driving the moving plate and the curved plate to rotate, so that the moving plate pulls the cleaning spring, and the dirt inside the cleaning plate falls into the collection box and leaves the inside of the equipment from the curved opening at the bottom of the collection box. When the card slot is separated from the baffle rod, the cleaning spring drives the moving plate and the curved plate to reclose the curved opening, which automatically handles the dirt and keeps the inside of the equipment clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure is a schematic top view of the structure of an anti-interference touch screen functional sheet proposed by the present invention.

[0024] Figure 2 The figure is a bottom-up structural schematic diagram of an anti-interference touch screen functional sheet proposed by the present invention.

[0025] Figure 3 The figure is a schematic diagram of the internal structure of an anti-interference touch screen functional chip proposed by the present invention.

[0026] Figure 4 The figure is a partial structural diagram of an anti-interference touch screen functional chip proposed by the present invention.

[0027] Figure 5 The present invention provides a schematic diagram of a push plate structure of an anti-interference touch screen functional sheet.

[0028] Figure 6 The present invention provides a schematic diagram of the sealing roll structure of an anti-interference touch screen functional sheet.

[0029] Figure 7 Schematic diagram of the upper electrode plate structure of an anti-interference touch screen functional chip proposed by the present invention.

[0030] Figure 8 Schematic diagram of the upper capacitor plate structure of an anti-interference touch screen functional chip proposed by the present invention.

[0031] In the figure: 1. Outer shell; 2. First transparent plate; 3. Protective shell; 4. Rotating plate; 5. Second transparent plate; 6. Display port; 7. First bottom plate; 8. Cleaning port; 9. Installation frame; 10. Sealing roll; 11. Fixed plate; 12. Moving frame; 13. Fixed block; 14. Installation frame; 15. Collection box; 16. Fixed frame; 17. Cleaning spring; 18. Connecting plate; 19. Moving plate; 20. Stop bar; 21. First interface; 22. Rack; 23. Motor; 24. Installation rod; 25. Pushing plate; 26. Connecting rod; 27. Cleaning plate; 28. Cleaning roller; 29. Lower electrode plate; 30. Upper electrode plate; 31. Flipping spring; 32. Gear; 33. Worm; 34. Knob; 35. Setting plate; 36. Threaded rod; 37. Torsion spring; 38. Second bottom plate; 39. Lower electrode; 40. Upper electrode; 41. Second interface; 42. Upper capacitor; 43. Lower capacitor; 44. Upper capacitor plate; 45. Partition board; 46. Lower capacitor plate. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0033] An anti-interference touch screen functional chip disclosed by the present invention is mainly applied to general numerical control machine tools using capacitive touch screens. In the complex environment of numerical control machining, various dirt such as cooling oil is likely to contaminate the display screen, causing the touch screen to generate error signals and resulting in errors in part processing.

[0034] Refer to Figure 1 — Figure 8, an anti-interference touch screen functional piece, including a housing 1. One side of the housing 1 is fixedly connected with a protective shell 3. The upper surface of the housing 1 is provided with a display port 6. Guide rods are fixedly connected to the inner walls on both sides of the housing 1. One end of the guide rod is slidably connected with a moving frame 12. The upper surface of the moving frame 12 is fixedly connected with a second bottom plate 38. The upper surface of the second bottom plate 38 is provided with a lower electrode plate 29. The upper surface of the lower electrode plate 29 is provided with an upper electrode plate 30. The upper surface of the upper electrode plate 30 is provided with a first transparent plate 2. The upper surface of the lower electrode plate 29 is provided with a plurality of first scanning lines. A plurality of lower electrodes 39 are arranged on the first scanning lines. The upper surface of the upper electrode plate 30 is provided with a plurality of second scanning lines. A plurality of upper electrodes 40 are arranged on the second scanning lines. One side edge of the lower electrode plate 29 is provided with a second interface 41. The bottom of the inner wall of the housing 1 is fixedly connected with a mounting frame 14. One side of the mounting frame 14 is fixedly connected with a fixing frame 16. The upper surface of the fixing frame 16 is fixedly connected with a first bottom plate 7. The upper surface of the first bottom plate 7 is provided with a lower capacitor plate 46. The upper surface of the lower capacitor plate 46 is provided with a partition 45. The upper surface of the partition 45 is provided with an upper capacitor plate 44. The upper surface of the upper capacitor plate 44 is provided with a second transparent plate 5. The upper surface of the lower capacitor plate 46 is provided with a plurality of third scanning lines. A plurality of lower capacitors 43 are arranged on the third scanning lines. The upper surface of the upper capacitor plate 44 is provided with a plurality of fourth scanning lines. A plurality of upper capacitors 42 are arranged on the fourth scanning lines. One side edge of the lower capacitor plate 46 is provided with a first interface 21. The bottom of the first bottom plate 7 is fixedly connected with a mounting frame 9;

[0035] A position-changing mechanism is installed on one side of the moving frame 12, and the position-changing mechanism is used to change the positions of the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38;

[0036] A cleaning mechanism is installed at a position on the edge of one end of the moving frame 12 close to the gear 32, and the cleaning mechanism is used to clean the surface dirt of the second transparent plate 5;

[0037] A sealing mechanism is installed at the edge of the other end of the moving frame 12, and the sealing mechanism seals the gap generated after the positions of the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38 change;

[0038] A collecting mechanism is installed on the inner wall at one end of the housing 1, and the collecting mechanism is used to cooperate with the cleaning mechanism to collect dirt.

[0039] A certain gap is designed between the lower electrode plate 29 and the upper electrode plate 30. The positions of the first scanning line and the second scanning line are perpendicular. The lower electrode 39 and the upper electrode 40 are respectively electrically connected to the first scanning line and the second scanning line. The first scanning line and the second scanning line are respectively electrically connected to the second interface 41. The positions of the third scanning line and the fourth scanning line are perpendicular. The upper capacitor 42 and the lower capacitor 43 are respectively electrically connected to the third scanning line and the fourth scanning line. The third scanning line and the fourth scanning line are respectively electrically connected to the first interface 21.

[0040] In this embodiment, the outer shell 1 is installed on the control screen of the automatic machine tool. The mounting frame 9 is fixedly connected to the control screen of the automatic machine tool. The first interface 21 is connected to the touch screen cable on the control screen of the automatic machine tool. When repairing the machine tool or modifying the program of the automatic machine tool on site, a large amount of information needs to be quickly input on the screen, and precise signal input and multi-touch are required. By operating with the finger on the second transparent plate 5, the second transparent plate 5, the upper capacitor plate 44, the partition plate 45, the lower capacitor plate 46 and the first bottom plate 7 are all made of transparent materials, and the partition plate 45 is also an insulating material. Due to the different charges of the upper capacitor 42 and the lower capacitor 43, a stable electric field is formed between the upper capacitor 42 and the lower capacitor 43. When the finger touches the second transparent plate 5, the electric field changes. The signal position is scanned through the third scanning line and the fourth scanning line, and the signal is converted into a digital signal and transmitted to the computer for relevant operations. The second transparent plate 5, the upper capacitor plate 44, the partition plate 45, the lower capacitor plate 46 and the first bottom plate 7 form the structure of a capacitive touch screen. The advantages are precise signal input and multi-touch, but it cannot distinguish impurities such as oil stains and water droplets, and the anti-interference performance is weak.

[0041] Furthermore, the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38 are made to stay directly above the second transparent plate 5. Since there is a certain gap between the lower electrode plate 29 and the upper electrode plate 30, the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38 are all made of transparent materials. When the finger touches the first transparent plate 2, it will squeeze the upper electrode plate 30, causing local deformation of the upper electrode plate 30. The upper electrode 40 at this position contacts the lower electrode 39 on the lower electrode plate 29 to form an electric current. The first scanning line and the second scanning line determine the scanning position, convert the signal into a digital signal and transmit it to the computer for relevant operations. The first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38 form a resistive touch screen. Since the operations of the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38 require a certain amount of pressure, during normal machining of parts by the numerical control machine tool, the environment is diverse, and oil stains and water droplets fall on the first transparent plate 2, and no input signal can be generated, which achieves the effect of improving the anti-interference performance of the touch screen under harsh conditions, and at the same time does not affect the precise signal input and multi-touch operations of the device.

[0042] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , in a preferred embodiment, the transposition mechanism includes a rack 22 fixedly connected to one side edge of the moving frame 12. The bottom of the inner wall of the outer shell 1 is fixedly connected with a fixed block 13. The top of the fixed block 13 is fixedly connected with a motor 23. One end of the output shaft of the motor 23 is fixedly connected with a worm 33. One side of the fixed block 13 is fixedly connected with a mounting rod 24. One end of the mounting rod 24 is rotatably connected with a gear 32.

[0043] The worm 33 meshes with the gear 32, the rack 22 meshes with the gear 32, the worm 33 does not contact the rack 22, the gear 32 can only rotate at one end of the mounting rod 24, and the position of the gear 32 does not move at the position of the mounting rod 24.

[0044] In this embodiment, by starting the motor 23 to drive the worm 33 and the gear 32, the rack 22 and the moving frame 12 are driven to move, so that the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38 stay directly above the second transparent plate 5, achieving the effect of changing the positions of the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38.

[0045] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 In a preferred embodiment, the cleaning mechanism includes a push plate 25 fixedly connected to one side of the moving frame 12. A connecting rod 26 is fixedly connected to the top of the push plate 25. One end of the connecting rod 26 is rotatably connected to a rotating plate 4. The bottom end of the rotating plate 4 is rotatably connected to a cleaning roller 28. A cleaning plate 27 is fixedly connected to the bottom end of the rotating plate 4 near the cleaning roller 28. A turning spring 31 is fixedly connected to the outer wall of one side of the moving frame 12 near the push plate 25.

[0046] A card slot is provided at one end of the push plate 25, a linkage slot is provided at the top end of the rotating plate 4, a stop bar is provided on the inner wall of one side of the rotating plate 4, and the position of the stop bar is on the same horizontal line as the linkage slot on the rotating plate 4. The other end of the turning spring 31 is fixedly connected to the bottom of the rotating plate 4.

[0047] In this embodiment, during the forward movement of the moving frame 12, the linkage slot at the top of the rotating plate 4 presses against the stop bar, the rotating plate 4 rotates to make the cleaning roller 28 and the cleaning plate 27 close to the surface of the second transparent plate 5. Through the relative movement between the moving frame 12 and the second transparent plate 5, the cleaning roller 28 continuously sweeps the surface of the second transparent plate 5, and the cleaning plate 27 removes the dirt, achieving the effect of cleaning the surface of the second transparent plate 5 and preventing the dirt on the second transparent plate 5 from affecting the display effect.

[0048] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 6, in a preferred embodiment, the sealing mechanism includes a fixing plate 11 fixedly connected to the bottom of the inner wall of the outer shell 1. One side of the fixing plate 11 is rotatably connected to a rotating rod. One end of the rotating rod is provided with a sealing roll 10. One end of the rotating rod is located outside one end of the sealing roll 10 and is provided with a torsion spring 37. The other side of the fixing plate 11 is rotatably connected to a knob 34. A setting plate 35 is fixedly connected to the outer wall of one side of the outer shell 1 above the knob 34. A threaded rod 36 is threadedly connected through the upper surface of the setting plate 35.

[0049] The other end of the sealing roll 10 is fixedly connected to one side edge of the first transparent plate 2. A connecting frame is fixedly connected to the upper surface of the outer shell 1 near the torsion spring 37. The shape of the connecting frame is an inverted U shape. One end of the rotating rod is fixedly connected to the knob 34. One end of the torsion spring 37 is fixedly connected to the connecting frame.

[0050] In this embodiment, during the movement of the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30 and the second bottom plate 38, the gap at this position will pollute the equipment under harsh conditions. The movement frame 12 drives the sealing roll 10 to move. The sealing roll 10 will cover the gap left by the movement frame 12 to protect the interior of the equipment. When the sealing roll 10 moves forward, the torsion spring 37 will be twisted. When the movement frame 12 returns to its original position, the torsion spring 37 drives the sealing roll 10 to retract, achieving the effect of retracting the sealing roll 10. After long-term use, the torsion spring 37 becomes loose. By rotating the mounting rod 24 to drive the torsion spring 37 to twist, and by twisting the threaded rod 36 to fix the position of the knob 34, the torsion spring 37 is always in an elastic state.

[0051] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , in a preferred embodiment, the collection mechanism includes a collection box 15 fixedly connected to the inner wall of the other end of the outer shell 1. A connecting plate 18 is fixedly connected to the inner wall of the collection box 15. One side of the connecting plate 18 is rotatably connected to a moving plate 19. A stop rod 20 is designed on one side of the top of the moving plate 19. A fixing rod is designed at the bottom of the stop rod 20 on one side of the top of the moving plate 19. One end of the fixing rod is fixedly connected to a cleaning spring 17. A cleaning port 8 is provided at the bottom of the outer shell 1 near the collection box 15.

[0052] The other end of the cleaning spring 17 is fixedly connected to the connecting plate 18. An arc-shaped plate is fixedly connected to one side of the moving plate 19. An arc-shaped opening is provided at the bottom of the collection box 15. The arc-shaped plate exactly blocks the arc-shaped opening. The stop rod 20 is used in cooperation with the card slot.

[0053] In this embodiment, the clamping groove on the push plate 25 abuts against the stop rod 20 to drive the moving plate 19 and the arc plate to rotate, so that the moving plate 19 pulls the cleaning spring 17, and the dirt inside the cleaning plate 27 falls into the inside of the collection box 15 and leaves the inside of the device through the arc-shaped opening at the bottom of the collection box 15. When the clamping groove is separated from the stop rod 20, the cleaning spring 17 drives the moving plate 19 and the arc plate to re-close the arc-shaped opening, achieving the effect of automatically processing dirt and keeping the inside of the device clean.

[0054] Working principle: When in use, the outer shell 1 is installed on the control screen of the automated machine tool. The installation frame 9 is fixedly connected to the control screen of the automated machine tool. The first interface 21 is connected to the touch screen cable on the control screen of the automated machine tool. When repairing the machine tool or modifying the program of the automated machine tool on-site, a large amount of information needs to be quickly input on the screen, and precise signal input and multi-touch are required. By operating with the finger on the second transparent plate 5, the second transparent plate 5, the upper capacitor plate 44, the partition plate 45, the lower capacitor plate 46, and the first bottom plate 7 are all made of transparent materials, and the partition plate 45 is also an insulating material. Due to the different charges of the upper capacitor 42 and the lower capacitor 43, a stable electric field is formed between the upper capacitor 42 and the lower capacitor 43. When the finger touches the second transparent plate 5, the electric field changes. The signal position is scanned through the third scanning line and the fourth scanning line, and the signal is converted into a digital signal and transmitted to the computer for relevant operations. The second transparent plate 5, the upper capacitor plate 44, the partition plate 45, the lower capacitor plate 46, and the first bottom plate 7 form the structure of a capacitive touch screen. The advantages are precise signal input and multi-touch, but it cannot distinguish impurities such as oil stains and water droplets, and the anti-interference performance is weak. By starting the motor 23 to drive the worm 33 and the gear 32, the rack 22 and the moving frame 12 are driven to move, so that the lower electrode plate 29, the upper electrode plate 30, and the second bottom plate 38 stay directly above the second transparent plate 5. Since there is a certain gap between the lower electrode plate 29 and the upper electrode plate 30, the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30, and the second bottom plate 38 are all made of transparent materials. When the finger touches the first transparent plate 2, the upper electrode plate 30 will be squeezed, causing local deformation of the upper electrode plate 30. The upper electrode 40 at this position contacts the lower electrode 39 on the lower electrode plate 29 to form an electric current. The first scanning line and the second scanning line determine the scanning position, convert the signal into a digital signal and transmit it to the computer for relevant operations. The first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30, and the second bottom plate 38 form a resistive touch screen. Since the operation of the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30, and the second bottom plate 38 requires a certain pressure, during normal processing of parts by the CNC machine tool, the environment is diverse, and oil stains and water droplets drip on the first transparent plate 2, and no input signal can be generated, which achieves the effect of improving the anti-interference performance of the touch screen under harsh conditions, and at the same time does not affect the precise signal input and multi-touch operations of the device. During the movement of the first transparent plate 2, the lower electrode plate 29, the upper electrode plate 30, and the second bottom plate 38, the gap at this position will pollute the device under harsh conditions. The sealing roll 10 is driven to move by the moving frame 12, and the sealing roll 10 will cover the gap left by the moving frame 12 to protect the interior of the device. When the sealing roll 10 moves forward, the torsion spring 37 will be twisted. When the moving frame 12 returns to its original position, the torsion spring 37 drives the sealing roll 10 to retract, achieving the effect of retracting the sealing roll 10. After long-term use, the torsion spring 37 becomes loose. By rotating the mounting rod 24 to drive the torsion spring 37 to twist, the position of the knob 34 is fixed by the torsion screw rod 36, so that the torsion spring 37 is always in an elastic state.During the forward movement of the moving frame 12, the linkage groove at the top of the rotating plate 4 presses against the stop bar, and the rotation of the rotating plate 4 brings the cleaning roller 28 and the cleaning plate 27 close to the surface of the second transparent plate 5. Through the relative movement between the moving frame 12 and the second transparent plate 5, the cleaning roller 28 continuously sweeps the surface of the second transparent plate 5, and the cleaning plate 27 removes the dirt, achieving the effect of cleaning the surface of the second transparent plate 5 and preventing the dirt on the second transparent plate 5 from affecting the display effect. By the clamping groove on the push plate 25 against the stop rod 20, the moving plate 19 and the arc plate are driven to rotate, so that the moving plate 19 pulls the cleaning spring 17, and the dirt inside the cleaning plate 27 falls into the inside of the collection box 15 and leaves the inside of the device through the arc-shaped opening at the bottom of the collection box 15. When the clamping groove is separated from the stop rod 20, the cleaning spring 17 drives the moving plate 19 and the arc plate to re-close the arc-shaped opening, achieving the effect of automatically treating dirt and keeping the inside of the device clean.

[0055] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An anti-interference touch screen functional sheet, comprising a housing (1), characterized in that: A protective shell (3) is fixedly connected to one side of the shell (1); a display port (6) is provided on the upper surface of the shell (1); guide rods are fixedly connected to the inner walls of both sides of the shell (1); one end of the guide rods is slidably connected to a moving frame (12); a second bottom plate (38) is fixedly connected to the upper surface of the moving frame (12); a lower electrode plate (29) is provided on the upper surface of the second bottom plate (38); an upper electrode plate (30) is provided on the upper surface of the lower electrode plate (29); a first transparent plate (2) is provided on the upper surface of the upper electrode plate (30); a plurality of first scanning lines are provided on the upper surface of the lower electrode plate (29); a plurality of lower electrodes (39) are provided on the first scanning lines; a plurality of second scanning lines are provided on the upper surface of the upper electrode plate (30); a plurality of upper electrodes (40) are provided on the second scanning lines; a second interface (41) is provided on one side edge of the lower electrode plate (29); 1) is fixedly connected to a mounting frame (14) at the bottom of the inner wall, a fixing frame (16) is fixedly connected to one side of the mounting frame (14), a first bottom plate (7) is fixedly connected to the upper surface of the fixing frame (16), a lower capacitor plate (46) is arranged on the upper surface of the first bottom plate (7), a partition plate (45) is arranged on the upper surface of the lower capacitor plate (46), an upper capacitor plate (44) is arranged on the upper surface of the partition plate (45), a second transparent plate (5) is arranged on the upper surface of the upper capacitor plate (44), a plurality of third scanning lines are arranged on the upper surface of the lower capacitor plate (46), a plurality of lower capacitors (43) are arranged on the third scanning lines, a plurality of fourth scanning lines are arranged on the upper surface of the upper capacitor plate (44), a first interface (21) is arranged on one side edge of the lower capacitor plate (46), and a mounting frame (9) is fixedly connected to the bottom of the first bottom plate (7); A position change mechanism is installed on one side of the moving frame (12), and the position change mechanism is used to change the positions of the lower electrode plate (29), the upper electrode plate (30) and the second bottom plate (38); The shifting mechanism comprises a rack (22) fixedly connected to a side edge of the moving frame (12); a fixing block (13) is fixedly connected to the bottom of the inner wall of the housing (1); a motor (23) is fixedly connected to the top of the fixing block (13); a worm (33) is fixedly connected to one end of the output shaft of the motor (23); a mounting rod (24) is fixedly connected to one side of the fixing block (13); and a gear (32) is rotatably connected to one end of the mounting rod (24); A cleaning mechanism is installed at a position close to the gear (32) at one end edge of the moving frame (12), and the cleaning mechanism is used to clean dirt on the surface of the second transparent plate (5); A sealing mechanism is installed at the edge of the other end of the moving frame (12), and the sealing mechanism seals the gap generated by the position change of the lower electrode plate (29), the upper electrode plate (30) and the second bottom plate (38); A collecting mechanism is installed on the inner wall of one end of the outer shell (1), and the collecting mechanism is used to cooperate with the cleaning mechanism to collect dirt.

2. The anti-interference touch screen functional sheet according to claim 1, characterized in that: A certain gap is designed between the lower electrode plate (29) and the upper electrode plate (30); the first scan line and the second scan line are positioned perpendicularly; the lower electrode (39) and the upper electrode (40) are electrically connected to the first scan line and the second scan line, respectively; the first scan line and the second scan line are electrically connected to the second interface (41), respectively; the third scan line and the fourth scan line are positioned perpendicularly; the upper capacitor (42) and the lower capacitor (43) are electrically connected to the third scan line and the fourth scan line, respectively; and the third scan line and the fourth scan line are electrically connected to the first interface (21), respectively.

3. The anti-interference touch screen functional sheet according to claim 2, characterized in that: The worm (33) meshes with the gear (32), the rack (22) meshes with the gear (32), the worm (33) and the rack (22) do not contact each other, the gear (32) can only rotate at one end of the mounting rod (24), and the position of the gear (32) will not move at the position of the mounting rod (24).

4. The anti-interference touch screen functional sheet according to claim 3, characterized in that: The cleaning mechanism comprises a push plate (25) fixedly connected to one side of the moving frame (12); a connecting rod (26) is fixedly connected to the top of the push plate (25); one end of the connecting rod (26) is rotatably connected to a rotating plate (4); the bottom end of the rotating plate (4) is rotatably connected to a cleaning roller (28); a cleaning plate (27) is fixedly connected to the bottom end of the rotating plate (4) near the cleaning roller (28); and a flip spring (31) is fixedly connected to a position on the outer wall of one side of the moving frame (12) near the push plate (25).

5. The anti-interference touch screen functional sheet according to claim 4, characterized in that: A slot is provided at one end of the push plate (25), a linkage slot is provided at the top end of the rotating plate (4), a blocking bar is provided on an inner wall of one side of the rotating plate (4), the blocking bar is located on the same horizontal line as the linkage slot on the rotating plate (4), and the other end of the flip spring (31) is fixedly connected to the bottom of the rotating plate (4).

6. The anti-interference touch screen functional sheet according to claim 5, characterized in that: The sealing mechanism comprises a fixed plate (11) fixedly connected to the bottom of the inner wall of the outer shell (1); one side of the fixed plate (11) is rotatably connected to a rotating rod; one end of the rotating rod is provided with a sealing roll (10); one end of the rotating rod is located outside one end of the sealing roll (10) and a torsion spring (37) is provided; the other side of the fixed plate (11) is rotatably connected to a knob (34); a setting plate (35) is fixedly connected to a position above the knob (34) on the outer wall of one side of the outer shell (1); a threaded rod (36) is threadedly connected to the upper surface of the setting plate (35).

7. The anti-interference touch screen functional sheet according to claim 6, characterized in that: The other end of the sealing roll (10) is fixedly connected to a side edge of the first transparent plate (2); a connecting frame is fixedly connected to the upper surface of the housing (1) near the torsion spring (37); the connecting frame is in an inverted U shape; one end of the rotating rod is fixedly connected to the knob (34); and one end of the torsion spring (37) is fixedly connected to the connecting frame.

8. The anti-interference touch screen functional sheet according to claim 7, characterized in that: The collecting mechanism comprises a collection box (15) fixedly connected to the inner wall of the other end of the outer shell (1), a connecting plate (18) fixedly connected to the inner wall of the collection box (15), a moving plate (19) rotatably connected to one side of the connecting plate (18), a blocking rod (20) being designed on one side of the top of the moving plate (19), a fixing rod being designed on one side of the top of the moving plate (19) at the bottom of the blocking rod (20), a cleaning spring (17) being fixedly connected to one end of the fixing rod, and a cleaning port (8) being provided at a position near the collection box (15) at the bottom of the outer shell (1).

9. The anti-interference touch screen functional sheet according to claim 8, characterized in that: The other end of the cleaning spring (17) is fixedly connected to the connecting plate (18), one side of the moving plate (19) is fixedly connected to an arc-shaped plate, the bottom of the collection box (15) is provided with an arc-shaped opening, the arc-shaped plate just blocks the arc-shaped opening, and the blocking rod (20) is used in conjunction with the card slot.

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