Key switch for stove and automatic production equipment of its rotating shaft and use method thereof

Abstract

The present invention belongs to the technical field of piano key switches, and in particular to a piano key switch for a stove and an automated production device for its rotating shaft and a method for using the same. Aiming at the problems that a large amount of oil stains adhere to the outer wall of the existing key, which not only affects the smoothness of switch control but also easily damages the micro switch in the piano key switch, and the rotation shaft slotting operation has a low degree of automation and low processing efficiency, the following scheme is proposed, which includes an installation box, a cover body is fixed to the top of the installation box by bolts, and a pad is placed on the top of the cover body; a plurality of rotating shafts, and the plurality of rotating shafts are arranged in sequence from left to right, and the top ends of the plurality of rotating shafts all pass through the top of the installation box. In the present invention, the cooperation of the worm and the first worm gear and the second worm gear can drive the rotating scraper ring to rise and rotate at the same time, so as to remove the oil stains on the outer wall of the key, facilitate the smooth lifting and lowering of the key in the later stage, and avoid damage to the micro switch caused by excessive key pressing. In addition, when slotting the rotating shaft, it can be completed without manual operation.

Description

Technical Field

[0001] The present invention relates to the technical field of piano key switches, and in particular to a piano key switch for a stove, an automatic production device for a rotating shaft thereof, and a use method thereof. Background Art

[0002] A stove key switch is a special switch design used on stoves that imitates the shape and arrangement of piano keys. This switch design allows users to control different functions or settings of the stove by pressing different "keys".

[0003] Specifically, the stove key switch usually includes multiple buttons, each of which corresponds to a specific function or setting of the stove, such as fire power, timing function, keep warm function, etc. The user can press the corresponding button as needed to achieve precise control of the stove.

[0004] Compared with traditional knob or button switches, the keyboard switch of the stove is more intuitive and easy to use. Users can quickly select the desired function or setting with just a light touch, which greatly improves the efficiency of use. In addition, the design of the keyboard switch also makes the appearance of the stove more fashionable and beautiful.

[0005] However, the existing piano key switches still have some shortcomings during use:

[0006] 1. Since the piano key switch is used on the stove, a lot of oil will adhere to the outer wall of the switch button after long-term use. Therefore, when pressing the switch later, it is hindered by the oil, resulting in the switch control not being smooth enough, and more force is needed to press. Excessive force can easily damage the micro switch in the piano key switch;

[0007] 2. When processing the rotating shaft of the piano key switch, in order to ensure the smooth up and down sliding of the rotating shaft, a matching sliding groove needs to be opened on the outer wall of the rotating shaft. However, when the existing processing equipment is grooving, manual tool adjustment is required to ensure the grooving depth, and the direction of the rotating shaft needs to be manually adjusted later to facilitate the grooving operation again. The degree of automation is low, which affects the processing efficiency of the rotating shaft.

[0008] In view of the above problems, the present invention document proposes an automatic production device for a keyboard switch for a stove and a rotating shaft thereof, and a method for using the same. Summary of the invention

[0009] The purpose of the present invention is to solve the shortcomings of the existing key switch, that is, a large amount of oil stains adhere to the outer wall of the key, which not only affects the smoothness of switch control but also easily damages the micro switch in the key switch, the low degree of automation of the shaft grooving operation, and the low processing efficiency, and to propose a key switch for a stove and its shaft automatic production equipment and a method of use thereof.

[0010] In order to achieve the above object, the present invention adopts the following technical solutions:

[0011] A piano key switch for a stove comprises a mounting box, a cover body is fixed to the top of the mounting box by bolts, and a pad is placed on the top of the cover body;

[0012] A plurality of rotating shafts are arranged in sequence from left to right, the top ends of the plurality of rotating shafts all pass through the top of the installation box, and the outer wall of the rotating shaft is provided with a plurality of sliding grooves, the rotating shaft is slidably connected with the installation box through the sliding grooves, and the number of the rotating shafts is at least 4;

[0013] The top ends of the plurality of rotating shafts are sleeved with a button, the top ends of the buttons slide through the cover body and the pad, the outer walls of the plurality of rotating shafts are sleeved with a second spring, the bottom ends of the second springs are fixedly connected to the top of the installation box, and the other ends of the second springs are fixedly connected to the bottom of the button;

[0014] A control structure, arranged in the installation box, for completing the control of the cooktop;

[0015] The cleaning structure is arranged inside the pad and is used to remove oil stains on the surface of the keys.

[0016] In a possible design, the control structure includes two control plates arranged in the installation box, the two control plates are fixedly connected by two connecting plates, pin rods are slidably penetrated in the two connecting plates, the ends of the two pin rods away from each other are respectively fixedly connected to the inner walls of the two sides of the installation box, the outer walls of the two pin rods are sleeved with a first spring, the ends of the two first springs close to each other are fixedly connected to the corresponding connecting plates, and the ends of the two first springs away from each other are respectively fixedly connected to the inner walls of one side of the corresponding installation box, the cooperation of the pin rod, the first spring and the connecting plate is used to reset the control plate, a latch is fixedly penetrated in the multiple rotating shafts, a trapezoidal groove and a plurality of control grooves are provided in the two control plates, the control groove is composed of an inclined groove and a rectangular slot, and the inclined groove is located above the rectangular slot, the latch located on the far left cooperates with the corresponding two trapezoidal grooves to close the stove, and the multiple latches located on the right cooperate with the corresponding control slots In cooperation, a plurality of micro switches are fixed on the inner wall at the bottom of the installation box, and the micro switches correspond to the displacement of the control slots, and are used to cooperate with the corresponding rotating shafts to complete the control of the stove; by pressing any one of the three buttons on the right side, the button drives the rotating shaft and the corresponding latch to move downward, the second spring is in a compressed state, and the latch cooperates with the inclined surface of the inclined surface slot and pushes the control board and the connecting plate to move to the left, the first spring is in a force storage state, until the latch moves into the rectangular slot, the control board and the connecting plate are reset a certain distance under the action of the first spring, at this time the latch is stuck in the rectangular slot, and the rotating shaft touches the micro switch to complete the control of the stove, when it is necessary to reset any one of the three buttons on the right side, press the leftmost button, the button moves downward through the cooperation of the rotating shaft and the latch, the latch drives the control board to move under the action of the trapezoidal slot, at this time the control board releases the brake of any one of the three buttons on the right side, and resets under the action of the second spring of the button, and the stove can be turned off at this time.

[0017] In a possible design, the cleaning structure includes a worm rotating in a pad, the top of the pad is rotatably connected to a plurality of rotating scraper rings, and the rotating scraper rings are sleeved on the outer wall of the key, a first worm wheel is fixed to the bottom of the plurality of rotating scraper rings, and the first worm wheel extends into the pad, the worm is meshed with the first worm wheel, and the cooperation of the first worm wheel and the worm is used to drive the rotating scraper ring to rotate; when there is a lot of oil stains attached to the outer wall of the key and the oil stains affect the pressing of the key, a degreasing agent is sprayed on the outer wall of the key and then the worm is rotated. The worm drives the rotating scraper ring to rotate through the first worm wheel, and the rotating scraper ring can scrape off the oil stains more effectively, thereby ensuring the cleanliness of the key surface and making the subsequent use of the key smoother, and also avoiding damage to the micro switch caused by excessive pressing of the key.

[0018] In a possible design, sliding rods are fixed on both sides of the bottom of the pad, and the bottom ends of the sliding rods slide and extend into the cover body to limit the lifting and lowering of the pad, and screws are fixed on both sides of the top of the cover body, and the outer walls of the two screws are threaded with sleeves, and the top ends of the sleeves penetrate the cover body and are rotatably connected to the bottom of the pad, and the top ends of the sleeves are fixed with a second worm gear through a fixed column, and the second worm gear is meshed with the worm; the worm is rotated, and the worm and the second worm gear cooperate to drive the sleeve to rotate, and the sleeve moves upward under the action of the screw, and at the same time, the rotating scraper ring rotates under the action of the worm and the first worm gear, and then the rotating scraper ring can more effectively scrape off the oil and dirt, ensure the cleanliness of the key surface, make the subsequent use of the key smoother, and also avoid damage to the micro switch caused by excessive pressing of the key.

[0019] The automatic production equipment for rotating shafts is used to process the rotating shafts in the above-mentioned keyboard switch for stoves, and comprises a bottom plate, a vertical plate is welded on one side of the top of the bottom plate, a convex plate is welded on one side of the vertical plate, and the convex plate is located above the bottom plate;

[0020] A rectangular groove is arranged in the vertical plate, and a lifting platform is slidably connected in the rectangular groove;

[0021] A clamping structure, arranged in the bottom plate and the convex plate, for clamping the rotating shaft;

[0022] A slotting structure, arranged in the rectangular slot, for slotting the outer wall of the rotating shaft;

[0023] The transposition structure is arranged in the rectangular slot and is used to drive the rotating shaft to rotate and adjust the position of the slot.

[0024] In a possible design, the clamping structure includes a rotating shaft rotatably connected to the top of the bottom plate, a cylinder is fixedly passed through the convex plate, a first pressure plate is provided at the top of the rotating shaft and one end of the output shaft of the cylinder, the first pressure plate located at the top is rotatably connected to the output shaft of the cylinder, the first pressure plate located at the bottom is fixedly connected to the top of the rotating shaft, a ejector pin is fixed on one side of the two first pressure plates close to each other, the two ejector pins are used to locate the center of the rotating shaft, a rubber ring is fixed on one end of the two first pressure plates close to each other, the two rubber rings are used to increase the stability of the clamping of the rotating shaft, a damping bearing is fixed in the bottom plate, and the bottom end of the rotating shaft extends into the damping bearing, the damping bearing is used to ensure the stability of the rotating shaft; the rotating shaft to be slotted is placed on the top of the first pressure plate below, the output shaft of the cylinder pushes the first pressure plate above to move downward, the clamping operation of the rotating shaft is completed by the two first pressure plates and the two ejector pins, and the two rubber rings can maintain the stability of the clamping of the rotating shaft.

[0025] In a possible design, the slotting structure includes a reciprocating screw rod rotatably connected in the rectangular slot, and the top end of the reciprocating screw rod is threaded through the lifting platform, a driving motor is provided in the vertical plate, and the output shaft of the driving motor is fixedly connected to the top end of the reciprocating screw rod, and the reciprocating screw rod is used to drive the lifting platform to rise and fall, a return frame is slidably penetrated in the lifting platform, an electric push rod is fixed on one side of the lifting platform, one end of the output shaft of the electric push rod is fixedly connected to the inner wall of one side of the return frame, a U-shaped mounting frame is fixed on one end of the return frame close to the first pressing plate, a saw blade is rotatably connected in the U-shaped mounting frame, the saw blade is used to slot the outer wall of the rotating shaft, a mounting plate is fixed on the bottom of the U-shaped mounting frame, and the mounting plate A laser rangefinder is fixed on one side to measure the distance between the saw blade and the rotating shaft; the driving motor drives the reciprocating screw to rotate, and the reciprocating screw drives the lifting platform to descend a certain distance. The laser rangefinder can detect the distance between the U-shaped mounting frame and the outer wall of the rotating shaft, and the radius of the saw blade is known, so the distance between the saw blade and the outer wall of the rotating shaft can be obtained. Then the output shaft of the electric push rod drives the return frame, the U-shaped mounting frame and the saw blade to move a certain distance, and the depth of the grooving can be controlled as needed. The motor drives the saw blade to rotate, and the saw blade performs the grooving operation, and the reciprocating screw drives the lifting platform to move slowly downward. The cooperation of the lifting platform and the saw blade can cut a vertical groove on the outer wall of the rotating shaft. The degree of automation is high, which improves production efficiency.

[0026] In a possible design, the second pressure plate slides in the rectangular groove, and the second pressure plate is sleeved on the outer wall of the reciprocating screw rod, a third spring is fixed to the bottom of the second pressure plate, and the bottom end of the third spring is fixedly connected to the bottom inner wall of the rectangular groove, the third spring is sleeved on the outer wall of the reciprocating screw rod, the outer wall of the rotating shaft is sleeved with a one-way bearing, and the inner ring of the one-way bearing is fixedly connected to the outer wall of the rotating shaft, the outer ring of the one-way bearing is fixed with a gear, the top of the bottom plate is slidably connected to a rack meshing with the gear, and the one-way bearing is used to control the rack to drive the gear One-way rotation, the top of the rack is rotatably connected to a connecting rod, the top of the connecting rod is rotatably connected to one side of the second pressure plate, and the cooperation between the second pressure plate and the connecting rod is used to drive the rack to move; when the saw blade completes the sliding groove cutting, the saw blade is located below the rotating shaft, the lifting platform continues to move downward and pushes the second pressure plate downward, the third spring is compressed, and the second pressure plate pushes the rack to one side through the connecting rod, the rack drives the gear to rotate, the gear is in a locked state with the rotating shaft through the one-way bearing, and the rack drives the rotating shaft to rotate 180 degrees through the one-way bearing to complete the direction reversal of the rotating shaft.

[0027] In a possible design, a collecting trough for collecting iron chips is provided at the top of the bottom plate, a vertical plate is slidably connected in the collecting trough, an inclined plate is fixed on one side of the vertical plate, and the inclined plate is used to guide the iron chips into the collecting trough, the inclined plate is sleeved on the outer wall of the rotating shaft, and the side of the inclined plate away from the collecting trough is fixedly connected to the second pressing plate, and the second pressing plate drives the inclined plate and the vertical plate to vibrate up and down, a groove is provided on the top of the inclined plate to prevent the iron chips from scattering from the inclined plate, and a plurality of fourth springs are fixed at the bottom of the inclined plate, and the bottom end of the fourth spring is fixedly connected to the top of the bottom plate; when the saw blade disc performs a grooving operation, a cooling liquid is sprayed on the saw blade disc through a cooling pipe (not shown in the figure) to cool the saw blade disc, at this time, the cooling liquid carries the iron chips and falls into the groove, and the gear and rack are protected by the groove, and the lifting platform drives the inclined plate to descend through the second pressing plate, and the fourth spring and the third spring drive the inclined plate to reset, so that the inclined plate can vibrate to a certain extent, which is used to shake the iron chips in the groove into the collecting trough to complete the collection operation of the iron chips.

[0028] The method for using the shaft automatic production equipment includes the following steps:

[0029] S1. Place the rotating shaft 4 to be slotted on the first pressing plate 27 of the equipment; start the cylinder 26 to drive the upper pressing plate and the ejector pin 28 to clamp the rotating shaft 4, and the rubber ring 29 ensures the stability of the clamping;

[0030] S2, the driving motor 32 drives the reciprocating screw rod 31 to rotate, so that the lifting platform 33 descends to a predetermined position: the laser rangefinder 39 detects the distance between the U-shaped mounting frame 36 and the outer wall of the rotating shaft 4 in real time, and combines the radius of the saw blade 37 to accurately control the grooving depth; the electric push rod 35 drives the saw blade 37 to move to the rotating shaft 4 to a set distance;

[0031] S3, the motor drives the saw blade 37 to rotate, and cooperates with the downward movement of the lifting platform 33 to cut a vertical slot on the outer wall of the rotating shaft 4; after the saw blade 37 completes the cutting, the lifting platform 33 continues to move downward, and the rotating shaft 4 is automatically rotated 180 degrees through mechanical transmission to prepare for the next slotting; the electric push rod 35 and the reciprocating screw rod 31 are reset, and the above slotting steps are repeated;

[0032] S4. During the grooving process, coolant is sprayed onto the saw blade 37 through the cooling pipe to reduce the temperature of the saw blade 37; the coolant and iron filings flow into the groove 50, and the inclined plate 48 vibrates under the action of the spring, shaking the iron filings into the collecting groove 47, thereby realizing automatic collection of the iron filings.

[0033] Beneficial effects:

[0034] In the present invention, the top of the pad is rotatably connected with a plurality of rotating scraper rings, the bottoms of the plurality of rotating scraper rings are all fixed with a first worm gear, and the worm is meshed with the first worm gear; the worm drives the rotating scraper ring to rotate through the first worm gear, and the rotating rotating scraper ring can more effectively scrape off the oil stains, thereby ensuring the cleanliness of the key surface, making the key smoother in subsequent use, and also avoiding damage to the micro switch caused by excessive key pressing force;

[0035] In the present invention, screws are fixed on both sides of the top of the cover body, and sleeves are threadedly sleeved on the outer walls of the two screws, and the top of the sleeve is rotatably connected to the bottom of the pad, and the top of the sleeve is fixed with a second worm gear meshing with the worm; the worm and the second worm gear cooperate to drive the sleeve to rotate, which is used to control the pad to move up, and at the same time, the rotating scraper ring rotates under the action of the worm and the first worm gear, which can more effectively scrape off the oil stains, ensure the cleanliness of the key surface, make the key smoother in subsequent use, and also avoid damage to the micro switch caused by excessive key pressing;

[0036] In the present invention, a return frame is slidably penetrated in the lifting platform, a U-shaped mounting frame is fixed at one end of the return frame, a saw blade is rotatably connected in the U-shaped mounting frame, and a laser rangefinder is fixed at the bottom of the U-shaped mounting frame through a mounting plate; the laser rangefinder can detect the distance between the U-shaped mounting frame and the outer wall of the rotating shaft, and is used to control the depth of the slotting, the driving motor drives the saw blade to rotate, and the reciprocating screw rod drives the lifting platform to slowly move downward, the cooperation of the lifting platform and the saw blade can cut a vertical slide groove on the outer wall of the rotating shaft, the automation degree is high, and the production efficiency is improved;

[0037] In the present invention, a second pressure plate is slidably connected in the rectangular groove, a one-way bearing is sleeved on the outer wall of the rotating shaft, a gear is fixed to the outer ring of the one-way bearing, a rack meshing with the gear is slidably connected to the top of the bottom plate, and the top of the rack is rotatably connected to one side of the second pressure plate by a connecting rod; the second pressure plate is pushed downward under the lifting platform, the rack moves to one side and drives the rotating shaft to rotate 180 degrees, completing the direction change of the rotating shaft, and the grooving and replacement operations can be completed without manual operation, with a high degree of automation, thereby improving production efficiency.

[0038] In the present invention, the cooperation between the worm and the first worm gear and the second worm gear can drive the rotating scraper ring to rise and rotate at the same time, so as to remove the oil stains on the outer wall of the key, facilitate the smooth lifting and lowering of the key in the later stage, and avoid damage to the micro switch caused by excessive pressing of the key. In addition, when grooving the rotating shaft, grooving, replacement and other operations can be completed without manual operation, with a high degree of automation, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the three-dimensional structure of a piano key switch for a cooker provided in Example 1 of the present invention;

[0040] Figure 2 A schematic diagram of a three-dimensional cross-sectional structure of a piano key switch for a stove provided in Example 1 of the present invention;

[0041] Figure 3 A schematic diagram of a three-dimensional exploded structure of a rotating shaft, a button, a control panel and a connecting panel of a keyboard switch for a stove provided in Example 1 of the present invention;

[0042] Figure 4 A schematic diagram of the three-dimensional structure of a key, a backing plate and a rotating scraper ring of a piano-key switch for a cooker provided in Example 1 of the present invention;

[0043] Figure 5 A schematic diagram of a three-dimensional exploded structure of a rotating scraper ring, a first worm gear and a worm of a keyboard switch for a stove provided in Example 1 of the present invention;

[0044] Figure 6 A schematic diagram of the three-dimensional structure of the rotating shaft automated production equipment provided in Example 1 of the present invention;

[0045] Figure 7 A schematic diagram of a three-dimensional cross-sectional structure of a vertical plate of the rotating shaft automated production equipment provided in Example 1 of the present invention;

[0046] Figure 8 A schematic diagram of the three-dimensional structure of a U-shaped mounting frame, a lifting platform and a return frame of the rotating shaft automated production equipment provided in Example 1 of the present invention;

[0047] Fig. 9 A schematic diagram of a three-dimensional exploded structure of a first pressing plate, a rotating shaft, a cylinder, and a second pressing plate of the rotating shaft automated production equipment provided in Example 1 of the present invention;

[0048] Fig.10 A schematic diagram of the three-dimensional structure of the automatic production equipment for rotating shafts provided in Example 2 of the present invention;

[0049] Fig.11 This is a schematic diagram of the three-dimensional exploded structure of the inclined plate, the fourth spring and the third spring of the automatic shaft production equipment provided in Example 2 of the present invention.

[0050] In the figure: 1, installation box; 2, cover; 3, pad; 4, shaft; 5, button; 6, control board; 7, connecting plate; 8, pin; 9, first spring; 10, trapezoidal groove; 11, control groove; 12, latch; 13, second spring; 14, micro switch; 15, slide bar; 16, rotating scraper ring; 17, first worm gear; 18, worm; 19, screw; 20, sleeve; 21, second worm gear; 22, bottom plate; 23, vertical plate; 24, convex plate; 25, rotating shaft; 26, cylinder; 27, first pressure plate ; 28. ejector pin; 29. ​​rubber ring; 30. rectangular groove; 31. reciprocating screw rod; 32. drive motor; 33. lifting platform; 34. return frame; 35. electric push rod; 36. U-shaped mounting bracket; 37. saw blade; 38. mounting plate; 39. laser rangefinder; 40. second pressure plate; 41. third spring; 42. one-way bearing; 43. gear; 44. damping bearing; 45. rack; 46. connecting rod; 47. collecting tank; 48. inclined plate; 49. fourth spring; 50. groove; 51. vertical plate. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] Example 1

[0053] Reference Figure 1-Figure 5 A switch is used in the field of piano key switches, comprising a mounting box 1, a cover body 2 is fixed to the top of the mounting box 1 by bolts, and a pad 3 is placed on the top of the cover body 2;

[0054] A plurality of rotating shafts 4 are arranged in sequence from left to right, the top ends of the plurality of rotating shafts 4 all pass through the top of the installation box 1, and the outer wall of the rotating shaft 4 is provided with a plurality of sliding grooves, the rotating shaft 4 is slidably connected with the installation box 1 through the sliding grooves, and the number of the rotating shafts 4 is at least 4;

[0055] The top ends of the multiple rotating shafts 4 are all sleeved with buttons 5, and the top ends of the buttons 5 slide through the cover body 2 and the pad 3. The outer walls of the multiple rotating shafts 4 are all sleeved with second springs 13, and the bottom ends of the second springs 13 are fixedly connected to the top of the installation box 1, and the other ends of the second springs 13 are fixedly connected to the bottom of the buttons 5.

[0056] Reference Figure 1-Figure 4The switch also includes a control structure arranged in the installation box 1 for completing the control of the stove; the control structure includes two control boards 6 arranged in the installation box 1, the two control boards 6 are fixedly connected by two connecting plates 7, and pins 8 are slidably penetrated in the two connecting plates 7, and the ends of the two pins 8 that are far away from each other are fixedly connected to the inner walls of the two sides of the installation box 1, and the outer walls of the two pins 8 are sleeved with first springs 9, and the ends of the two first springs 9 that are close to each other are fixedly connected to the corresponding connecting plates 7, and the ends of the two first springs 9 that are far away from each other are fixedly connected to the corresponding connecting plates 7. They are respectively fixedly connected to the inner wall of one side of the corresponding installation box 1. The cooperation of the pin rod 8, the first spring 9 and the connecting plate 7 is used to reset the control board 6. A latch 12 is fixedly passed through the multiple rotating shafts 4. Trapezoidal grooves 10 and multiple control grooves 11 are provided in the two control boards 6. The control groove 11 consists of an inclined groove and a rectangular slot, and the inclined groove is located above the rectangular slot. The latch 12 on the far left cooperates with the corresponding two trapezoidal grooves 10 to close the stove. The multiple latches 12 on the right cooperate with the corresponding control grooves 11. A plurality of micro switches 14 are fixed to the inner wall at the bottom of the installation box 1, and the micro switches 14 correspond to the displacement of the control slot 11, and are used to cooperate with the corresponding rotating shaft 4 to complete the control of the stove; by pressing any one of the three buttons 5 on the right side, the button 5 drives the rotating shaft 4 and the corresponding latch 12 to move downward, the second spring 13 is in a compressed state, and the latch 12 cooperates with the inclined surface of the inclined groove and pushes the control board 6 and the connecting plate 7 to move to the left, and the first spring 9 is in a force storage state until the latch 12 moves into the rectangular slot, and the control board 6 and the connecting plate 7 are in the first Under the action of a spring 9, it is reset to a certain distance. At this time, the latch 12 is stuck in the rectangular slot, and the shaft 4 touches the micro switch 14 to complete the control of the cooker. When it is necessary to reset any one of the three buttons 5 on the right, press the leftmost button 5. The button 5 moves downward through the cooperation of the shaft 4 and the latch 12. The latch 12 drives the control board 6 to move under the action of the trapezoidal slot 10. At this time, the control board 6 releases the brake of any one of the three buttons 5 on the right and resets under the action of the second spring 13 of the button 5. At this time, the cooker can be turned off.

[0057] Reference Figure 2 and Figure 5The switch also includes a cleaning structure arranged in the pad 3, which is used to remove the oil on the surface of the key 5; the cleaning structure includes a worm 18 rotating in the pad 3, and the top of the pad 3 is rotatably connected to a plurality of rotating scraper rings 16, and the rotating scraper ring 16 is sleeved on the outer wall of the key 5, and the bottoms of the plurality of rotating scraper rings 16 are fixed with a first worm gear 17, and the first worm gear 17 extends into the pad 3, and the worm 18 is meshed with the first worm gear 17, and the cooperation of the first worm gear 17 and the worm 18 is used to drive the rotating scraper ring 16 to rotate; when there is a lot of oil attached to the outer wall of the key 5, and the oil affects the pressing of the key 5, by spraying a degreasing agent on the outer wall of the key 5, and then rotating the worm 18, the worm 18 drives the rotating scraper ring 16 to rotate through the first worm gear 17, and the rotating scraper ring 16 can more effectively scrape off the oil, ensure the cleanliness of the surface of the key 5, make the subsequent use of the key 5 smoother, and also avoid excessive pressing of the key 5 to cause damage to the micro switch 14.

[0058] Reference Figure 4 and Figure 5 The bottom of the backing plate 3 is fixed with sliding rods 15 on both sides, and the bottom ends of the sliding rods 15 slide and extend into the cover body 2 to limit the lifting of the backing plate 3. Screws 19 are fixed on both sides of the top of the cover body 2. The outer walls of the two screws 19 are threadedly sleeved with sleeves 20, and the top ends of the sleeves 20 penetrate the cover body 2 and are rotatably connected to the bottom of the backing plate 3. The top of the sleeve 20 is fixed with a second worm gear 21 through a fixing column, and the second worm gear 21 is meshed with the worm 18; the worm 18 is rotated, and the worm 18 and the second worm gear 21 cooperate to drive the sleeve 20 to rotate. The sleeve 20 moves up under the action of the screw 19, and the rotating scraper ring 16 rotates under the action of the worm 18 and the first worm gear 17. Then, the rotating scraper ring 16 can more effectively scrape off the oil stains, ensure the cleanliness of the surface of the button 5, make the subsequent use of the button 5 smoother, and also avoid the damage of the micro switch 14 caused by excessive pressing force of the button 5.

[0059] Working principle of the piano key switch for stoves:

[0060] S1. When in use, press any one of the three buttons 5 on the right side, the button 5 drives the rotating shaft 4 and the corresponding latch 12 to move downward, the second spring 13 is in a compressed state, and the latch 12 cooperates with the inclined surface of the inclined surface groove and pushes the control board 6 and the connecting plate 7 to move to the left, the first spring 9 is in a force storage state, until the latch 12 moves into the rectangular slot, the control board 6 and the connecting plate 7 are reset to a certain distance under the action of the first spring 9, at this time the latch 12 is stuck in the rectangular slot, and the rotating shaft 4 touches the micro switch 14, completing the control of the cooker;

[0061] S2. When it is necessary to reset any one of the three buttons 5 on the right side, the leftmost button 5 is pressed, and the button 5 moves downward through the cooperation of the rotating shaft 4 and the latch 12. The latch 12 drives the control board 6 to move under the action of the trapezoidal groove 10. At this time, the control board 6 releases the brake of any one of the three buttons 5 on the right side, and resets under the action of the second spring 13 of the button 5. At this time, the cooker can be turned off;

[0062] S3. When there is a lot of oil stains attached to the outer wall of the key 5 and the oil stains affect the pressing of the key 5, a degreasing agent is sprayed on the outer wall of the key 5, and then the worm 18 is rotated. The worm 18 cooperates with the second worm gear 21 to drive the sleeve 20 to rotate. The sleeve 20 moves upward under the action of the screw 19. The sleeve 20 drives the pad 3 and the rotating scraper ring 16 to move upward to scrape off the oil stains on the outer wall of the key 5. In the upward movement process, the worm 18 drives the rotating scraper ring 16 to rotate through the first worm gear 17. The rotating rotating scraper ring 16 can scrape off the oil stains more effectively, thereby ensuring the cleanliness of the surface of the key 5, making the subsequent use of the key 5 smoother, and also avoiding damage to the micro switch 14 caused by excessive pressing of the key 5.

[0063] Reference Figure 6-Figure 10 A production device, which is used in the field of piano key switches, is used to process the rotating shaft 4 in the above-mentioned piano key switch for stoves, including a bottom plate 22, a vertical plate 23 is welded on one side of the top of the bottom plate 22, a convex plate 24 is welded on one side of the vertical plate 23, and the convex plate 24 is located above the bottom plate 22;

[0064] A rectangular groove 30 is disposed in the vertical plate 23 , and a lifting platform 33 is slidably connected in the rectangular groove 30 .

[0065] Reference Figure 6 and Fig. 9The switch also includes a clamping structure arranged in the bottom plate 22 and the convex plate 24, which is used to clamp the rotating shaft 4; the clamping structure includes a rotating shaft 25 rotatably connected to the top of the bottom plate 22, and a cylinder 26 is fixedly passed through the convex plate 24. The top of the rotating shaft 25 and one end of the output shaft of the cylinder 26 are both provided with a first pressing plate 27, the first pressing plate 27 located at the top is rotatably connected to the output shaft of the cylinder 26, and the first pressing plate 27 located at the bottom is fixedly connected to the top of the rotating shaft 25, and the two first pressing plates 27 are fixedly provided with ejector pins 28 on the side close to each other, and the two ejector pins 28 are used to locate the center of the rotating shaft 4, A rubber ring 29 is fixed to one end of the two first pressure plates 27 that are close to each other. The two rubber rings 29 are used to increase the stability of the clamping of the rotating shaft 4. A damping bearing 44 is fixed in the bottom plate 22, and the bottom end of the rotating shaft 25 extends into the damping bearing 44. The damping bearing 44 is used to ensure the stability of the rotating shaft 25. The rotating shaft 4 to be slotted is placed on the top of the first pressure plate 27 below, and the output shaft of the cylinder 26 pushes the first pressure plate 27 above to move downward. The clamping operation of the rotating shaft 4 is completed by the two first pressure plates 27 and the two ejectors 28. At the same time, the two rubber rings 29 can maintain the stability of the clamping of the rotating shaft 4.

[0066] Reference Figure 7 and Figure 8The switch also includes a slotting structure arranged in the rectangular slot 30, which is used to slot the outer wall of the rotating shaft 4; the slotting structure includes a reciprocating screw rod 31 rotatably connected to the rectangular slot 30, and the top end of the reciprocating screw rod 31 is threaded through the lifting platform 33, a driving motor 32 is provided in the vertical plate 23, and the output shaft of the driving motor 32 is fixedly connected to the top end of the reciprocating screw rod 31, and the reciprocating screw rod 31 is used to drive the lifting platform 33 to move up and down, and a return frame 34 is slidably penetrated in the lifting platform 33, an electric push rod 35 is fixed on one side of the lifting platform 33, and one end of the output shaft of the electric push rod 35 is fixedly connected to the inner wall of one side of the return frame 34, and a U-shaped mounting frame 36 is fixed on one end of the return frame 34 close to the first pressing plate 27, and a saw blade 37 is rotatably connected in the U-shaped mounting frame 36, and the saw blade 37 is used to slot the outer wall of the rotating shaft 4, and a mounting plate 38 is fixed on the bottom of the U-shaped mounting frame 36 A laser rangefinder 39 is fixed on one side of the mounting plate 38 for measuring the distance between the saw blade disc 37 and the rotating shaft 4; the driving motor 32 drives the reciprocating screw rod 31 to rotate, and the reciprocating screw rod 31 drives the lifting platform 33 to descend a certain distance. The laser rangefinder 39 can detect the distance between the U-shaped mounting frame 36 and the outer wall of the rotating shaft 4, and the radius of the saw blade disc 37 is known, so the distance between the saw blade disc 37 and the outer wall of the rotating shaft 4 can be obtained, and then the output shaft of the electric push rod 35 drives the return frame 34 and the U-shaped mounting frame 36, and the saw blade disc 37 to move a certain distance, and the depth of the grooving can be controlled as needed. The motor drives the saw blade disc 37 to rotate, and the saw blade disc 37 performs a grooving operation, and the reciprocating screw rod 31 drives the lifting platform 33 to move slowly downward, and the cooperation of the lifting platform 33 and the saw blade disc 37 can cut a vertical groove on the outer wall of the rotating shaft 4, with a high degree of automation, thereby improving production efficiency.

[0067] Reference Figure 7 and Fig. 9The switch also includes a transposition structure arranged in the rectangular groove 30, which is used to drive the rotating shaft 4 to rotate and adjust the position of the slot; the transposition structure includes a second pressure plate 40 sliding in the rectangular groove 30, and the second pressure plate 40 is sleeved on the outer wall of the reciprocating screw rod 31, a third spring 41 is fixed to the bottom of the second pressure plate 40, and the bottom end of the third spring 41 is fixedly connected to the bottom inner wall of the rectangular groove 30, the third spring 41 is sleeved on the outer wall of the reciprocating screw rod 31, the outer wall of the rotating shaft 25 is sleeved with a one-way bearing 42, and the inner ring of the one-way bearing 42 is fixedly connected to the outer wall of the rotating shaft 25, the outer ring of the one-way bearing 42 is fixedly connected to the outer ring of the one-way bearing 42, and the top of the bottom plate 22 is slidably connected to a rack 45 meshing with the gear 43, and the one-way bearing 42 is used to To control the rack 45 to drive the gear 43 to rotate in one direction, the top of the rack 45 is rotatably connected to the connecting rod 46, and the top of the connecting rod 46 is rotatably connected to one side of the second pressure plate 40. The cooperation between the second pressure plate 40 and the connecting rod 46 is used to drive the rack 45 to move; when the saw blade 37 completes the sliding groove cutting, the saw blade 37 is located below the rotating shaft 4, the lifting platform 33 continues to move downward and pushes the second pressure plate 40 to move downward, the third spring 41 is compressed, and the second pressure plate 40 pushes the rack 45 to move to one side through the connecting rod 46, and the rack 45 drives the gear 43 to rotate. The gear 43 is in a locked state with the rotating shaft 25 through the one-way bearing 42, and the rack 45 drives the rotating shaft 25 to rotate 180 degrees through the one-way bearing 42 to complete the direction reversal of the rotating shaft 4.

[0068] Example 2

[0069] refer to Fig.10 , based on the improvement of Example 1: a collecting groove 47 for collecting iron chips is provided on the top of the bottom plate 22, a vertical plate 51 is slidably connected in the collecting groove 47, an inclined plate 48 is fixed on one side of the vertical plate 51, and the inclined plate 48 is used to guide the iron chips into the collecting groove 47, the inclined plate 48 is sleeved on the outer wall of the rotating shaft 25, and the side of the inclined plate 48 away from the collecting groove 47 is fixedly connected to the second pressing plate 40, and the second pressing plate 40 drives the inclined plate 48 and the vertical plate 51 to vibrate up and down, and a groove 50 is provided on the top of the inclined plate 48 to prevent the iron chips from scattering from the inclined plate 48, and a plurality of fourth springs 49 are fixed on the bottom of the inclined plate 48, and the fourth springs The bottom end of the spring 49 is fixedly connected to the top of the base plate 22; when the saw blade 37 is performing a grooving operation, coolant is sprayed onto the saw blade 37 through a cooling pipe (not shown in the figure) to cool the saw blade 37. At this time, the coolant carries iron filings and falls into the groove 50. The gear 43 and the rack 45 are protected by the groove 50, and the lifting platform 33 drives the inclined plate 48 to descend through the second pressure plate 40, while the fourth spring 49 and the third spring 41 drive the inclined plate 48 to reset. Therefore, the inclined plate 48 can vibrate to a certain extent, which is used to shake the iron filings in the groove 50 into the collecting trough 47, thereby completing the iron filings collection operation.

[0070] The method for using the shaft automatic production equipment includes the following steps:

[0071] S1. Place the rotating shaft 4 to be slotted on the top of the first pressing plate 27 below. The output shaft of the cylinder 26 pushes the first pressing plate 27 above to move downward. The two first pressing plates 27 and the two ejector pins 28 complete the clamping operation of the rotating shaft 4. At the same time, the two rubber rings 29 can maintain the stability of the clamping of the rotating shaft 4.

[0072] S2, the driving motor 32 drives the reciprocating screw rod 31 to rotate, and the reciprocating screw rod 31 drives the lifting platform 33 to descend a certain distance. The laser rangefinder 39 can detect the distance between the U-shaped mounting frame 36 and the outer wall of the rotating shaft 4, and the radius of the saw blade 37 is known, so the distance between the saw blade 37 and the outer wall of the rotating shaft 4 can be obtained. Then the output shaft of the electric push rod 35 drives the return frame 34 and the U-shaped mounting frame 36 and the saw blade 37 to move a certain distance, and the depth of the groove can be controlled as needed;

[0073] S3. After the distance of the saw blade 37 moving toward the rotating shaft 4 is controlled, the motor drives the saw blade 37 to rotate, the saw blade 37 performs the slotting operation, and the reciprocating screw rod 31 drives the lifting platform 33 to move down slowly. The cooperation between the lifting platform 33 and the saw blade 37 can cut a vertical slot on the outer wall of the rotating shaft 4. When the saw blade 37 completes the slot cutting, the saw blade 37 is located below the rotating shaft 4. The lifting platform 33 continues to move down and pushes the second pressure plate 40 to move down. The third spring 41 is compressed, and the second pressure plate 40 is connected to the connecting rod 4. 6 pushes the rack 45 to move to one side, the rack 45 drives the gear 43 to rotate, the gear 43 is locked with the rotating shaft 25 through the one-way bearing 42, the rack 45 drives the rotating shaft 25 to rotate 180 degrees through the one-way bearing 42, and the direction of the rotating shaft 4 is turned, then the electric push rod 35 drives the saw blade 37 to reset to the right side, the reciprocating screw rod 31 drives the lifting platform 33 to reset upward, and the cutting operation of step S3 is repeated, and the slotting and transposition operations can be completed without manual operation, with a high degree of automation, thereby improving production efficiency;

[0074] S4. When the saw blade 37 is performing a grooving operation, coolant is sprayed onto the saw blade 37 through a cooling pipe (not shown in the figure) to cool the saw blade 37. At this time, the coolant carries iron filings into the groove 50, and the gear 43 and the rack 45 are protected by the groove 50. The lifting platform 33 drives the inclined plate 48 to descend through the second pressure plate 40, and the fourth spring 49 and the third spring 41 drive the inclined plate 48 to reset. Therefore, the inclined plate 48 can vibrate to a certain extent, which is used to shake the iron filings in the groove 50 into the collecting trough 47, thereby completing the iron filings collection operation.

[0075] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric push rod 35, the drive motor 32, the laser rangefinder 39, the micro switch 14 and the cylinder 26 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0076] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A piano key switch for a stove, characterized in that: It comprises an installation box (1), the top of which is fixed with a cover body (2) by means of bolts, and a pad (3) is placed on the top of the cover body (2); A plurality of rotating shafts (4), and the plurality of rotating shafts (4) are arranged in sequence from left to right, the top ends of the plurality of rotating shafts (4) all penetrate the top of the installation box (1), and the outer wall of the rotating shaft (4) is provided with a plurality of sliding grooves, and the rotating shaft (4) is slidably connected to the installation box (1) through the sliding grooves, and the number of the rotating shafts (4) is at least 4; The top ends of the plurality of rotating shafts (4) are sleeved with a button (5), the top ends of the buttons (5) slide through the cover body (2) and the backing plate (3), the outer walls of the plurality of rotating shafts (4) are sleeved with a second spring (13), the bottom ends of the second springs (13) are fixedly connected to the top of the installation box (1), and the other ends of the second springs (13) are fixedly connected to the bottom of the buttons (5); A control structure, arranged in the installation box (1), for completing the control of the stove; A cleaning structure, arranged inside the backing plate (3), for removing oil stains from the surface of the key (5); The control structure comprises two control plates (6) arranged in the installation box (1), the two control plates (6) are fixedly connected by two connecting plates (7), the two connecting plates (7) are slidably penetrated by pin rods (8), the ends of the two pin rods (8) that are far away from each other are respectively fixedly connected to the inner walls of both sides of the installation box (1), the outer walls of the two pin rods (8) are sleeved with first springs (9), the ends of the two first springs (9) that are close to each other are fixedly connected to the corresponding connecting plates (7), and the ends of the two first springs (9) that are far away from each other are respectively fixedly connected to the inner walls of one side of the corresponding installation box (1), and the cooperation between the pin rods (8), the first springs (9) and the connecting plates (7) is used to make the control The plate (6) is reset and moved, a plurality of the rotating shafts (4) are fixed with latches (12), the two control plates (6) are provided with trapezoidal grooves (10) and a plurality of control grooves (11), the control grooves (11) are composed of an inclined groove and a rectangular slot, and the inclined groove is located above the rectangular slot, the latch (12) located on the far left cooperates with the corresponding two trapezoidal grooves (10) to close the stove, and the plurality of latches (12) located on the right cooperate with the corresponding control grooves (11), a plurality of micro switches (14) are fixed on the inner wall of the bottom of the installation box (1), and the micro switches (14) correspond to the displacement of the control grooves (11), and are used to cooperate with the corresponding rotating shafts (4) to complete the control of the stove; The cleaning structure comprises a worm (18) rotating in a backing plate (3); a plurality of rotating scraper rings (16) are rotatably connected to the top of the backing plate (3); the rotating scraper rings (16) are sleeved on the outer wall of the key (5); a first worm gear (17) is fixed to the bottom of each of the plurality of rotating scraper rings (16); the first worm gear (17) extends into the backing plate (3); the worm (18) is meshed with the first worm gear (17); the cooperation between the first worm gear (17) and the worm (18) is used to drive the rotating scraper ring (16) to rotate; Slide rods (15) are fixed on both sides of the bottom of the pad (3), and the bottom ends of the slide rods (15) slide and extend into the cover body (2) to limit the lifting and lowering of the pad (3). Screw rods (19) are fixed on both sides of the top of the cover body (2). The outer walls of the two screw rods (19) are threadedly sleeved with sleeves (20), and the top ends of the sleeves (20) penetrate the cover body (2) and are rotatably connected to the bottom of the pad (3). The top ends of the sleeves (20) are fixed with a second worm gear (21) via a fixing column, and the second worm gear (21) is meshed with the worm (18).

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