Automatic production equipment for kitchen range related accessories and use method of automatic production equipment

Abstract

The invention belongs to the technical field of automatic production, particularly relates to automatic production equipment for kitchen range related accessories and a use method of the automatic production equipment, and aims to solve the problems that a large amount of greasy dirt is attached to the outer wall of an existing key, the switch control smoothness is affected, a microswitch in a key switch is easily damaged, the automation degree of rotating shaft slotting operation is low, and the machining efficiency is low. According to the scheme, the device comprises a mounting box, a cover body is fixed to the top of the mounting box through bolts, and a base plate is placed on the top of the cover body; according to the key cleaning device, through cooperation of the worm, the first worm gear and the second worm gear, the rotating scraping ring can be driven to ascend and rotate at the same time, oil stains on the outer wall of a key are removed, smooth ascending and descending of the key in the later period are facilitated, and the key cleaning effect is improved. Damage of the microswitch caused by overexertion of pressing the key is avoided, and in addition, slotting can be completed without manual operation when the rotating shaft is slotted.

Description

Technical Field

[0001] The present invention relates to the technical field of key switches, and particularly to an automated production device for accessories related to cooktops and its usage method. Background Art

[0002] The cooktop key switch is a special switch design used on cooktops, which mimics the shape and arrangement of piano keys. This switch design enables users to control different functions or settings of the cooktop by pressing different "keys".

[0003] Specifically, the cooktop key switch usually includes multiple buttons, and each button corresponds to a specific function or setting of the cooktop, such as the size of the firepower, the timing function, the heat preservation function, etc. Users can press the corresponding button according to their needs to achieve precise control of the cooktop.

[0004] Compared with traditional rotary or push-button switches, the cooktop key switch has the characteristics of being more intuitive and user-friendly. Users only need to press gently to quickly select the required function or setting, which greatly improves the usage efficiency. In addition, the design of the key switch also makes the appearance of the cooktop more fashionable and beautiful.

[0005] However, there are still some deficiencies in the existing key switches during use:

[0006] 1. Since the key switch is used on the stove top, after long-term use, a large amount of oil stains adhere to the outer wall of the switch button. Therefore, when pressing the switch later, it is hindered by the oil stains, resulting in unsmooth switch control. A greater force is required to press, and if the force is too large, the micro switch in the key switch is easily damaged.

[0007] 2. When processing the rotating shaft in the key switch, in order to ensure the smooth sliding of the rotating shaft up and down, matching chutes need to be opened on the outer wall of the rotating shaft. However, when the existing processing equipment performs grooving, in order to ensure the grooving depth, manual tool setting is required, and later, manual adjustment of the direction of the rotating shaft is also required to facilitate grooving operations 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 automated production device for cooktop key switches and their rotating shafts and its usage method. Summary of the Invention

[0009] The purpose of the present invention is to solve the drawbacks that a large amount of oil stains adhering to the outer wall of the existing button not only affects the smoothness of switch control but also easily damages the micro switch in the key switch, and the degree of automation of the rotating shaft grooving operation is low and the processing efficiency is low, and proposes an automated production device for cooktop key switches and their rotating shafts and its usage method.

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

[0011] The piano key switch for a cooking appliance includes an installation box. A cover body is fixed to the top of the installation box by bolts, and a backing plate is placed on the top of the cover body.

[0012] A plurality of rotating shafts, and the plurality of rotating shafts are arranged in sequence from left to right. The tops of the plurality of rotating shafts all penetrate through the top of the installation box, and a plurality of sliding grooves are provided on the outer wall of the rotating shaft. The rotating shaft is slidably connected to the installation box through the sliding groove, and the number of the rotating shafts is at least 4.

[0013] Buttons are sleeved on the tops of the plurality of rotating shafts. The tops of the buttons slidably penetrate through the cover body and the backing plate. Second springs are sleeved on the outer walls of the plurality of rotating shafts, and 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 bottoms of the buttons.

[0014] A control structure is arranged in the installation box and is used to complete the control of the cooking range.

[0015] A cleaning structure is arranged in the backing plate and is used to remove the oil stains on the surface of the buttons.

[0016] In a possible design, the control structure includes two control boards disposed in the installation box. The two control boards are fixedly connected by two connecting plates. A pin rod slidably penetrates through each of the two connecting plates. One end of each of the two pin rods away from each other is fixedly connected to the inner walls of the two sides of the installation box. A first spring is sleeved on the outer wall of each of the two pin rods. One end of each of the two first springs close to each other is fixedly connected to the corresponding connecting plate, and one end of each of the two first springs away from each other is fixedly connected to the inner wall of one side of the corresponding installation box. The cooperation of the pin rod, the first spring and the connecting plate is used to make the control board move in a reset manner. A plug is fixedly penetrated through each of the plurality of rotating shafts. Each of the two control boards is provided with a trapezoidal groove and a plurality of control grooves. The control groove is composed of an inclined groove and a rectangular clamping groove, and the inclined groove is located above the rectangular clamping groove. The plug located on the leftmost side cooperates with the corresponding two trapezoidal grooves to close the stove top. The plurality of plugs located on the right side cooperate with the corresponding control grooves. The inner bottom wall of the installation box is fixed with a plurality of microswitches, and the microswitches correspond to the displacement of the control grooves, and are used to cooperate with the corresponding rotating shafts to complete the control of the stove top; Press any one of the three buttons on the right side. The button drives the rotating shaft and the corresponding plug to move downward. The second spring is in a compressed state. The plug cooperates with the inclined surface of the inclined groove and pushes the control board and the connecting plate to move to the left side. The first spring is in a state of storing energy. Until the plug moves into the rectangular clamping groove, the control board and the connecting plate are reset a certain distance under the action of the first spring. At this time, the plug is stuck in the rectangular clamping groove, and the rotating shaft touches the microswitch to complete the control of the cooker. 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 plug. The plug drives the control board to move under the action of the trapezoidal groove. At this time, the control board releases the braking of any one of the three buttons on the right side and resets under the action of the second spring of the button. At this time, the cooker can be closed.

[0017] In a possible design, the cleaning structure includes a worm rotating in a backing plate. The top of the backing plate is rotatably connected with a plurality of rotating scraping rings, and the rotating scraping rings are sleeved on the outer wall of the button. A first worm gear is fixed to the bottom of each of the plurality of rotating scraping rings, and the first worm gear extends into the backing plate. The worm is meshed with the first worm gear. The cooperation of the first worm gear and the worm is used to drive the rotating scraping ring to rotate; When there is more oil stain attached to the outer wall of the button and the oil stain affects the pressing of the button, spray degreaser on the outer wall of the button, and then rotate the worm. The worm drives the rotating scraping ring to rotate through the first worm gear. The rotating scraping ring can more effectively scrape off the oil stain, ensure the cleanliness of the button surface, make the subsequent use of the button smoother, and also avoid damage to the microswitch caused by excessive pressing force of the button.

[0018] In a possible design, slide bars are fixed to both sides of the bottom of the backing plate, and the bottom ends of the slide bars extend slidably into the cover body to limit the lifting of the backing plate. Screws are fixed to both sides of the top of the cover body. Sleeve members are threadedly sleeved on the outer walls of the two screws, and the top ends of the sleeve members penetrate through the cover body and are rotatably connected to the bottom of the backing plate. A second worm gear is fixed to the top end of the sleeve member through a fixing post, and the second worm gear meshes with a worm. When the worm is rotated, the worm and the second worm gear cooperate to drive the sleeve member to rotate. Under the action of the screw, the sleeve member moves upward. At the same time, the rotating scraping ring rotates under the action of the worm and the first worm gear. Thus, the rotating scraping ring can more effectively scrape off oil stains, ensuring the cleanliness of the button surface, making the subsequent use of the button smoother, and also avoiding damage to the micro switch caused by excessive pressing force on the button.

[0019] A shaft automatic production device is used for processing the shafts in the above-mentioned piano key switches for cookers, and includes a bottom plate. One side of the top of the bottom plate is welded with a vertical plate, and a convex plate is welded to one side of the vertical plate, and the convex plate is located above the bottom plate.

[0020] A rectangular groove is provided in the vertical plate, and a lifting table is slidably connected in the rectangular groove.

[0021] A clamping structure is provided in the bottom plate and the convex plate for clamping the shaft.

[0022] A grooving structure is provided in the rectangular groove for grooving on the outer wall of the shaft.

[0023] A position-changing structure is provided in the rectangular groove for driving the shaft to rotate and adjusting the position of the groove.

[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 penetrated through the convex plate. First pressing plates are provided at one ends of the output shaft of the cylinder and the top end of the rotating shaft. The first pressing plate located above is rotatably connected to the output shaft of the cylinder, and the first pressing plate located below is fixedly connected to the top end of the rotating shaft. Thumb tacks are fixed to one sides of the two first pressing plates close to each other, and the two thumb tacks are used to position the center of the shaft. Rubber rings are fixed to one ends of the two first pressing plates close to each other, and the two rubber rings are used to increase the stability of the shaft clamping. A damping bearing is fixed in the bottom plate, and the bottom end of the rotating shaft extends into the damping bearing, and the damping bearing is used to ensure the stability of the rotating shaft. Place the shaft to be grooved on the top of the lower first pressing plate. The output shaft of the cylinder pushes the upper first pressing plate downward, and the clamping operation of the shaft is completed through the two first pressing plates and the two thumb tacks. At the same time, the two rubber rings can maintain the stability of the shaft clamping.

[0025] In a possible design, the slotted structure includes a reciprocating lead screw rotatably connected in a rectangular slot, and the top end of the reciprocating lead screw threadedly penetrates through the lifting table. 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 lead screw. The reciprocating lead screw is used to drive the lifting table to move up and down. A rectangular frame is slidably penetrated through the lifting table. An electric push rod is fixed to one side of the lifting table, and one end of the output shaft of the electric push rod is fixedly connected to one inner wall of the rectangular frame. A U-shaped mounting bracket is fixed to one end of the rectangular frame close to the first pressing plate. A saw blade disc is rotatably connected in the U-shaped mounting bracket. The saw blade disc is used to slot the outer wall of the rotating shaft. A mounting plate is fixed to the bottom of the U-shaped mounting bracket. A laser rangefinder is fixed to one side of the mounting plate for measuring the distance between the saw blade disc and the rotating shaft. The driving motor drives the reciprocating lead screw to rotate, and the reciprocating lead screw drives the lifting table to descend a certain distance. The laser rangefinder can detect the distance between the U-shaped mounting bracket and the outer wall of the rotating shaft. Since the radius of the saw blade disc is known, the distance between the saw blade disc and the outer wall of the rotating shaft can be obtained. Then, the output shaft of the electric push rod drives the rectangular frame, the U-shaped mounting bracket, and the saw blade disc to move a certain distance, and the depth of the slotting can be controlled as needed. The motor drives the saw blade disc to rotate, and the saw blade disc performs slotting operations. The reciprocating lead screw drives the lifting table to slowly move down. The cooperation between the lifting table and the saw blade disc can cut a vertical chute on the outer wall of the rotating shaft, with a relatively high degree of automation and improved production efficiency.

[0026] In a possible design, a second pressing plate slides in the rectangular slot, and the second pressing plate is sleeved on the outer wall of the reciprocating lead screw. A third spring is fixed to the bottom of the second pressing plate, and the bottom end of the third spring is fixedly connected to the bottom inner wall of the rectangular slot. The third spring is sleeved on the outer wall of the reciprocating lead screw. A one-way bearing is sleeved on the outer wall of the rotating shaft, and the inner ring of the one-way bearing is fixedly connected to 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. The one-way bearing is used to control the rack to drive the gear to rotate in one direction. The top of the rack is rotatably connected to a connecting rod, and the top end of the connecting rod is rotatably connected to one side of the second pressing plate. The cooperation between the second pressing plate and the connecting rod is used to drive the rack to move. When the saw blade disc finishes cutting the chute, the saw blade disc is located below the rotating shaft. The lifting table continues to move down and pushes the second pressing plate down. The third spring is compressed. The second pressing plate pushes the rack to move 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. 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 collection groove for collecting iron filings is provided at the top of the bottom plate. A vertical plate is slidably connected in the collection groove. One side of the vertical plate is fixed with an inclined plate for guiding the iron filings into the collection groove. The inclined plate is sleeved on the outer wall of a rotating shaft. The side of the inclined plate away from the collection groove is fixedly connected to a second pressing plate. The second pressing plate drives the inclined plate and the vertical plate to vibrate up and down. A groove is provided at the top of the inclined plate to prevent the iron filings from scattering from the inclined plate. A plurality of fourth springs are fixed to the bottom of the inclined plate, and the bottom ends of the fourth springs are fixedly connected to the top of the bottom plate. When the saw blade disc performs grooving operations, coolant is sprayed onto the saw blade disc through a cooling pipe (not shown in the figure) to cool the saw blade disc. At this time, the coolant carries the iron filings and falls into the groove, protecting the gear and the rack through the groove. Moreover, the lifting table drives the inclined plate to descend through the second pressing plate, while the fourth spring and the third spring drive the inclined plate to reset. Therefore, the inclined plate can vibrate to a certain extent to vibrate the iron filings in the groove into the collection groove, completing the collection operation of the iron filings.

[0028] The usage method of a rotating shaft automatic production device includes the following steps:

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

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

[0031] S3. The motor drives the saw blade disc 37 to rotate, and in cooperation with the downward movement of the lifting table 33, a vertical chute is cut on the outer wall of the rotating shaft 4; after the saw blade disc 37 finishes cutting, the lifting table 33 continues to descend, and through mechanical transmission, the rotating shaft 4 automatically rotates 180 degrees to prepare for grooving on the next side; the electric push rod 35 and the reciprocating lead screw 31 reset, and repeat the above grooving steps.

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

[0033] Beneficial effects:

[0034] In the present invention, a plurality of rotating scraping rings are rotatably connected to the top of the backing plate, and a first worm gear is fixed to the bottom of each of the plurality of rotating scraping rings, and the worm is meshed with the first worm gear; the worm drives the rotating scraping ring to rotate through the first worm gear, and the rotating rotating scraping ring can more effectively scrape off the oil stain, ensure the cleanliness of the button surface, make the subsequent use of the button smoother, and also avoid damage to the micro switch caused by excessive pressing force of the button;

[0035] In the present invention, screws are fixed to both sides of the top of the cover body, sleeves are threadedly sleeved on the outer walls of the two screws, and the top end of the sleeve is rotatably connected to the bottom of the backing plate, and a second worm gear meshed with the worm is fixed to the top end of the sleeve; the cooperation of the worm and the second worm gear drives the sleeve to rotate, which is used to control the upward movement of the backing plate. At the same time, the rotating scraping ring rotates under the action of the worm and the first worm gear, which can more effectively scrape off the oil stain, ensure the cleanliness of the button surface, make the subsequent use of the button smoother, and also avoid damage to the micro switch caused by excessive pressing force of the button;

[0036] In the present invention, a rectangular frame is slidably penetrated in the lifting platform, a U-shaped mounting frame is fixed to one end of the rectangular frame, a saw blade disc is rotatably connected in the U-shaped mounting frame, and a laser rangefinder is fixed to 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 disc to rotate, and the reciprocating lead screw drives the lifting platform to slowly move down. The cooperation of the lifting platform and the saw blade disc can cut a vertical slot on the outer wall of the rotating shaft, with a high degree of automation and improved production efficiency;

[0037] In the present invention, a second pressing 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 meshed 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 pressing plate through a connecting rod; when the lifting platform moves down to push the second pressing plate down, the rack moves to one side and drives the rotating shaft to rotate 180 degrees, completing the direction reversal of the rotating shaft. The slotting and transposition operations can be completed without manual operation, with a high degree of automation and improved production efficiency.

[0038] In the present invention, through the cooperation of the worm with the first worm gear and the second worm gear, the rotating scraping ring can be driven to rise and rotate simultaneously to remove the oil stain on the outer wall of the button, facilitating the smooth lifting of the button in the later stage, avoiding damage to the micro switch caused by excessive pressing force of the button. In addition, when slotting the rotating shaft, operations such as slotting and transposition can be completed without manual operation, with a high degree of automation and improved production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a three-dimensional structural diagram of the piano key switch for a cooker provided in Embodiment 1 of the present invention;

[0040] Figure 2 The three-dimensional sectional structure diagram of the key switch for a cooker provided in Embodiment 1 of the present invention;

[0041] Figure 3 The three-dimensional exploded structure diagram of the rotating shaft, key, control board and connecting board of the key switch for a cooker provided in Embodiment 1 of the present invention;

[0042] Figure 4 The three-dimensional structure diagram of the key, backing plate and rotating scraping ring of the key switch for a cooker provided in Embodiment 1 of the present invention;

[0043] Figure 5 The three-dimensional exploded structure diagram of the rotating scraping ring, first worm gear and worm of the key switch for a cooker provided in Embodiment 1 of the present invention;

[0044] Figure 6 The three-dimensional structure diagram of the automatic production equipment for the rotating shaft provided in Embodiment 1 of the present invention;

[0045] Figure 7 The three-dimensional sectional structure diagram of the vertical plate of the automatic production equipment for the rotating shaft provided in Embodiment 1 of the present invention;

[0046] Figure 8 The three-dimensional exploded structure diagram of the U-shaped mounting bracket, lifting platform and return-shaped frame of the automatic production equipment for the rotating shaft provided in Embodiment 1 of the present invention;

[0047] Figure 9 The three-dimensional exploded structure diagram of the first pressing plate, rotating shaft, air cylinder and second pressing plate of the automatic production equipment for the rotating shaft provided in Embodiment 1 of the present invention;

[0048] Figure 10 The three-dimensional structure diagram of the automatic production equipment for the rotating shaft provided in Embodiment 2 of the present invention;

[0049] Figure 11 The three-dimensional exploded structure diagram of the inclined plate, fourth spring and third spring of the automatic production equipment for the rotating shaft provided in Embodiment 2 of the present invention.

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

[0051] 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 the embodiments.

[0052] Embodiment 1

[0053] Referring to Figures 1 - 5 , a switch, which is applied in the field of key switches, includes a mounting box 1. The top of the mounting box 1 is fixed with a cover body 2 by bolts, and a backing plate 3 is placed on the top of the cover body 2;

[0054] A plurality of rotating shafts 4, and the plurality of rotating shafts 4 are arranged in sequence from left to right. The tops of the plurality of rotating shafts 4 all penetrate through the top of the mounting box 1, and a plurality of sliding grooves are provided on the outer wall of the rotating shaft 4. The rotating shaft 4 is slidably connected to the mounting box 1 through the sliding groove, and the number of the rotating shafts 4 is at least 4;

[0055] The tops of the plurality of rotating shafts 4 are all sleeved with keys 5. The tops of the keys 5 slidably penetrate through the cover body 2 and the backing plate 3. The outer walls of the plurality of 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 mounting box 1, and the other ends of the second springs 13 are fixedly connected to the bottoms of the keys 5.

[0056] Referring to Figures 1 - 4, the switch further includes a control structure disposed in the installation box 1 for completing the control of the cooking stove; the control structure includes two control boards 6 disposed in the installation box 1, and the two control boards 6 are fixedly connected by two connecting plates 7. A pin rod 8 slidably penetrates through both of the two connecting plates 7. The mutually remote ends of the two pin rods 8 are respectively fixedly connected to the inner walls of both sides of the installation box 1. A first spring 9 is sleeved on the outer walls of the two pin rods 8. The mutually close ends of the two first springs 9 are fixedly connected to the corresponding connecting plates 7. The mutually remote ends of the two first springs 9 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 make the control board 6 move in a reset manner. A plug 12 is fixedly penetrated through each of the plurality of rotating shafts 4. Each of the two control boards 6 is provided with a trapezoidal groove 10 and a plurality of control grooves 11. The control groove 11 is composed of an inclined groove and a rectangular clamping groove, and the inclined groove is located above the rectangular clamping groove. The plug 12 located on the leftmost side cooperates with the corresponding two trapezoidal grooves 10 to close the cooking stove. The plurality of plugs 12 located on the right side cooperate with the corresponding control grooves 11. A plurality of microswitches 14 are fixedly provided on the bottom inner wall of the installation box 1, and the microswitches 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 cooking stove; pressing any one of the three right-side buttons 5 drives the rotating shaft 4 and the corresponding plug 12 to move downward. The second spring 13 is in a compressed state, and the plug 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 side. The first spring 9 is in a state of storing energy until the plug 12 moves into the rectangular clamping groove. The control board 6 and the connecting plate 7 are reset by a certain distance under the action of the first spring 9. At this time, the plug 12 is stuck in the rectangular clamping groove, and the rotating shaft 4 touches the microswitch 14 to complete the control of the cooker. When it is necessary to reset any one of the three right-side buttons 5, press the leftmost button 5. The button 5 moves downward through the cooperation of the rotating shaft 4 and the plug 12. The plug 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 braking of any one of the three right-side buttons 5, and the button 5 is reset under the action of the second spring 13 of the button 5. At this time, the cooker can be turned off.

[0057] Refer to Figure 2 and Figure 5, the switch further includes a cleaning structure disposed in the backing plate 3 for removing oil stains on the surface of the button 5; the cleaning structure includes a worm 18 rotatably disposed in the backing plate 3, and a plurality of rotating scraping rings 16 are rotatably connected to the top of the backing plate 3, and the rotating scraping rings 16 are sleeved on the outer wall of the button 5. A first worm gear 17 is fixed to the bottom of each of the plurality of rotating scraping rings 16, and the first worm gear 17 extends into the backing plate 3. The worm 18 meshes with the first worm gear 17. The cooperation of the first worm gear 17 and the worm 18 is used to drive the rotating scraping ring 16 to rotate; when there is a large amount of oil stain attached to the outer wall of the button 5 and the oil stain affects the pressing of the button 5, by spraying degreaser on the outer wall of the button 5, and then rotating the worm 18, the worm 18 drives the rotating scraping ring 16 to rotate through the first worm gear 17. The rotating rotating scraping ring 16 can more effectively scrape off the oil stain, ensure the cleanliness of the surface of the button 5, make the subsequent use of the button 5 smoother, and also avoid damage to the micro switch 14 caused by excessive pressing force of the button 5.

[0058] Referring to Figure 4 and Figure 5 , sliding rods 15 are fixed to both sides of the bottom of the backing plate 3, and the bottom ends of the sliding rods 15 extend slidably into the cover body 2 for limiting the lifting of the backing plate 3. Screws 19 are fixed to both sides of the top of the cover body 2. Sleeve 20 is threadedly sleeved on the outer walls of the two screws 19, and the top end of the sleeve 20 penetrates through the cover body 2 and is rotatably connected to the bottom of the backing plate 3. A second worm gear 21 is fixed to the top end of the sleeve 20 through a fixing column, and the second worm gear 21 meshes with the worm 18; rotating the worm 18, the cooperation of the worm 18 and the second worm gear 21 drives the sleeve 20 to rotate. The sleeve 20 moves upward under the action of the screw 19, and at the same time the rotating scraping ring 16 rotates under the action of the worm 18 and the first worm gear 17. Furthermore, the rotating scraping ring 16 can more effectively scrape off the oil stain, ensure the cleanliness of the surface of the button 5, make the subsequent use of the button 5 smoother, and also avoid damage to the micro switch 14 caused by excessive pressing force of the button 5.

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

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

[0061] S2. When it is necessary to reset any one of the three right-side buttons 5, press the leftmost button 5. The button 5 moves downward through the cooperation of the rotating shaft 4 and the pin 12. The pin 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 braking of any one of the three right-side buttons 5. Under the action of the second spring 13 of the button 5, it resets. At this time, the cooking appliance can be turned off.

[0062] S3. When there is a lot of oil stain on the outer wall of the button 5 and the oil stain affects the pressing of the button 5, spray degreaser on the outer wall of the button 5, and then rotate the worm 18. The worm 18 drives the sleeve 20 to rotate through the cooperation with the second worm gear 21. The sleeve 20 moves upward under the action of the screw 19. The sleeve 20 drives the backing plate 3 and the rotating scraping ring 16 to move upward to scrape off the oil stain on the outer wall of the button 5. During the upward movement, the worm 18 drives the rotating scraping ring 16 to rotate through the first worm gear 17. The rotating scraping ring 16 can scrape off the oil stain more effectively, ensuring the cleanliness of the surface of the button 5, making the subsequent use of the button 5 smoother, and also avoiding damage to the micro switch 14 caused by excessive pressing force on the button 5.

[0063] Refer to Figures 6 - 10 , a production device, which is used in the field of key switches and is used to process the rotating shaft 4 in the above-mentioned key switch for cooking appliances. It includes a bottom plate 22. One side of the top of the bottom plate 22 is welded with a vertical plate 23. One side of the vertical plate 23 is welded with a convex plate 24, and the convex plate 24 is located above the bottom plate 22.

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

[0065] Refer to Figure 6 and Figure 9, the switch further includes a clamping structure disposed within the base plate 22 and the convex plate 24 for clamping the rotating shaft 4; the clamping structure includes a rotating shaft 25 rotatably connected to the top of the base plate 22, a cylinder 26 fixedly penetrating through the convex plate 24, and first pressing plates 27 are provided at one end of the output shaft of the cylinder 26 and the top end of the rotating shaft 25. The first pressing plate 27 located above is rotatably connected to the output shaft of the cylinder 26, and the first pressing plate 27 located below is fixedly connected to the top end of the rotating shaft 25. Thumb tacks 28 are fixed on one side of the two first pressing plates 27 close to each other, and the two thumb tacks 28 are used to locate the center of the rotating shaft 4. Rubber rings 29 are fixed at one end of the two first pressing plates 27 close to each other, and 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 within the base 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 grooved is placed on the top of the lower first pressing plate 27, and the output shaft of the cylinder 26 pushes the upper first pressing plate 27 downward to complete the clamping operation of the rotating shaft 4 through the two first pressing plates 27 and the two thumb tacks 28. At the same time, the two rubber rings 29 can maintain the stability of the clamping of the rotating shaft 4.

[0066] Refer to Figure 7 and Figure 8, the switch further includes a grooving structure disposed in the rectangular groove 30 for grooving the outer wall of the rotating shaft 4; the grooving structure includes a reciprocating lead screw 31 rotatably connected in the rectangular groove 30, and the top end of the reciprocating lead screw 31 threadedly penetrates through the lifting table 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 lead screw 31. The reciprocating lead screw 31 is used to drive the lifting table 33 to lift and lower. A rectangular frame 34 slidably penetrates through the lifting table 33. One side of the lifting table 33 is fixed with an electric push rod 35, and one end of the output shaft of the electric push rod 35 is fixedly connected to one side inner wall of the rectangular frame 34. One end of the rectangular frame 34 close to the first pressing plate 27 is fixed with a U-shaped mounting bracket 36. A saw blade disc 37 is rotatably connected in the U-shaped mounting bracket 36. The saw blade disc 37 is used for grooving the outer wall of the rotating shaft 4. The bottom of the U-shaped mounting bracket 36 is fixed with a mounting plate 38. One side of the mounting plate 38 is fixed with a laser rangefinder 39 for measuring the distance between the saw blade disc 37 and the rotating shaft 4. The driving motor 32 drives the reciprocating lead screw 31 to rotate, and the reciprocating lead screw 31 drives the lifting table 33 to descend a certain distance. The laser rangefinder 39 can detect the distance between the U-shaped mounting bracket 36 and the outer wall of the rotating shaft 4, and the radius of the saw blade disc 37 is known, so that the distance between the saw blade disc 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 rectangular frame 34, the U-shaped mounting bracket 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 grooving operations. The reciprocating lead screw 31 drives the lifting table 33 to slowly move downward. The cooperation of the lifting table 33 and the saw blade disc 37 can cut a vertical chute on the outer wall of the rotating shaft 4, with a high degree of automation and improved production efficiency.

[0067] Refer to Figure 7 and Figure 9, the switch further includes a commutation structure disposed in the rectangular groove 30 for driving the rotation shaft 4 to rotate and adjusting the position of the slotted opening; the commutation structure includes a second pressing plate 40 slidably disposed in the rectangular groove 30, and the second pressing plate 40 is sleeved on the outer wall of the reciprocating lead screw 31. A third spring 41 is fixed to the bottom of the second pressing plate 40, and the bottom end of the third spring 41 is fixedly connected to the inner wall of the bottom of the rectangular groove 30. The third spring 41 is sleeved on the outer wall of the reciprocating lead screw 31. A one-way bearing 42 is sleeved on the outer wall of the rotating shaft 25, and the inner ring of the one-way bearing 42 is fixedly connected to the outer wall of the rotating shaft 25. A gear 43 is fixed to the outer ring of the one-way bearing 42. A rack 45 engaged with the gear 43 is slidably connected to the top of the bottom plate 22. The one-way bearing 42 is used 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 a connecting rod 46, and the top end of the connecting rod 46 is rotatably connected to one side of the second pressing plate 40. The cooperation between the second pressing plate 40 and the connecting rod 46 is used to drive the rack 45 to move; when the saw blade disk 37 completes the chute cutting, the saw blade disk 37 is located below the rotating shaft 4. The lifting table 33 continues to move downward and pushes the second pressing plate 40 downward. The third spring 41 is compressed. The second pressing plate 40 pushes the rack 45 to move to one side through the connecting rod 46. 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, completing the direction reversal of the rotating shaft 4.

[0068] Embodiment 2

[0069] Reference Figure 10 , based on the improvement of Embodiment 1: A collection groove 47 for collecting iron filings is provided on the top of the bottom plate 22. A vertical plate 51 is slidably connected in the collection groove 47. An inclined plate 48 is fixed to one side of the vertical plate 51. The inclined plate 48 is used to guide the iron filings into the collection groove 47. The inclined plate 48 is sleeved on the outer wall of the rotating shaft 25. The side of the inclined plate 48 away from the collection groove 47 is fixedly connected to the second pressing plate 40. The second pressing plate 40 drives the inclined plate 48 and the vertical plate 51 to vibrate up and down. A groove 50 is provided on the top of the inclined plate 48 to prevent the iron filings from scattering from the inclined plate 48. A plurality of fourth springs 49 are fixed to the bottom of the inclined plate 48, and the bottom ends of the fourth springs 49 are fixedly connected to the top of the bottom plate 22; when the saw blade disk 37 performs the slotted opening operation, coolant is sprayed onto the saw blade disk 37 through a cooling pipe (not shown in the figure) for cooling the saw blade disk 37. At this time, the coolant carries the iron filings and falls into the groove 50, protecting the gear 43 and the rack 45 through the groove 50. And the lifting table 33 drives the inclined plate 48 to descend through the second pressing 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 to vibrate the iron filings in the groove 50 into the collection groove 47, completing the collection operation of the iron filings.

[0070] The usage method of the rotating shaft automatic production equipment includes the following steps:

[0071] S1. Place the rotating shaft 4 to be grooved on the top of the lower first pressing plate 27. The output shaft of the air cylinder 26 pushes the upper first pressing plate 27 downward to complete the clamping operation of the rotating shaft 4 through the two first pressing plates 27 and the two ejector pins 28. 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 lead screw 31 to rotate. The reciprocating lead screw 31 drives the lifting table 33 to descend a certain distance. The distance between the U-shaped mounting frame 36 and the outer wall of the rotating shaft 4 can be detected by the laser rangefinder 39. And the radius of the saw blade disc 37 is known, so that the distance between the saw blade disc 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 loop-shaped frame 34, the U-shaped mounting frame 36 and the saw blade disc 37 to move a certain distance, and the depth of the groove can be controlled as needed.

[0073] S3. After completing the control of the distance that the saw blade disc 37 moves towards the rotating shaft 4, the motor drives the saw blade disc 37 to rotate, and the saw blade disc 37 performs grooving operations. And the reciprocating lead screw 31 drives the lifting table 33 to slowly descend. The cooperation between the lifting table 33 and the saw blade disc 37 can cut a vertical chute on the outer wall of the rotating shaft 4. When the saw blade disc 37 finishes cutting the chute, the saw blade disc 37 is located below the rotating shaft 4. The lifting table 33 continues to descend and pushes the second pressing plate 40 downward. The third spring 41 is compressed. The second pressing plate 40 drives the rack 45 to move to one side through the connecting rod 46. 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. 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. Then the electric push rod 35 drives the saw blade disc 37 to reset to the right, and the reciprocating lead screw 31 drives the lifting table 33 to reset upward. Repeat the cutting operation in step S3. The grooving and transposition operations can be completed without manual operation, with a high degree of automation and improved production efficiency.

[0074] S4. When the saw blade disc 37 is performing grooving operations, coolant is sprayed onto the saw blade disc 37 through a cooling pipe (not shown in the figure) to cool the saw blade disc 37. At this time, the coolant carries iron filings and falls into the groove 50, which protects the gear 43 and the rack 45. And the lifting table 33 drives the inclined plate 48 to descend through the second pressing 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 to shake the iron filings in the groove 50 into the collection tank 47 to complete the collection operation of the iron filings.

[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 microswitch 14, and the cylinder 26 are common knowledge. They all belong to conventional means or well-known common sense, and will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience.

[0076] 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 and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An automated production equipment for rotating shafts, used for processing rotating shafts (4) in keyboard switches for stoves, characterized in that: It comprises a bottom plate (22), a vertical plate (23) is welded to one side of the top of the bottom plate (22), a convex plate (24) is welded to one side of the vertical plate (23), and the convex plate (24) is located above the bottom plate (22); A rectangular groove (30) is arranged in the vertical plate (23), and a lifting platform (33) is slidably connected in the rectangular groove (30); A clamping structure, arranged inside the bottom plate (22) and the convex plate (24), and used for clamping the rotating shaft (4); A slotting structure, arranged in the rectangular slot (30), and used for slotting the outer wall of the rotating shaft (4); The transposition structure is arranged in the rectangular groove (30) and is used to drive the rotating shaft (4) to rotate and adjust the position of the groove.

2. The shaft automatic production equipment according to claim 1, characterized in that: The clamping structure comprises a rotating shaft (25) rotatably connected to the top of the bottom plate (22); a cylinder (26) is fixedly passed through the convex plate (24); a first pressing plate (27) is provided at the top of the rotating shaft (25) and one end of the output shaft of the cylinder (26); the first pressing plate (27) located at the top is rotatably connected to the output shaft of the cylinder (26); the first pressing plate (27) located at the bottom is fixedly connected to the top of the rotating shaft (25); the two first pressing plates (27) are mutually abutted. A thimble (28) is fixed on the near side, and the two thimbles (28) are used to locate the center of the rotating shaft (4). A rubber ring (29) is fixed on the ends of the two first pressure plates (27) that are close to each other, and the two rubber rings (29) are used to increase the stability of clamping 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), and the damping bearing (44) is used to ensure the stability of the rotating shaft (25).

3. The shaft automation production equipment according to claim 2, characterized in that: The slotted structure comprises a reciprocating screw rod (31) rotatably connected in the rectangular slot (30), and the top end of the reciprocating screw rod (31) is threadedly passed through the lifting platform (33), a driving motor (32) is arranged 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 is used to drive the lifting platform (33) to rise and fall through the reciprocating screw rod (31), a return frame (34) is slidably passed through the lifting platform (33), and an electric push rod (35) is fixed on one side of the lifting platform (33), and the electric push rod (35) is fixed on one side of the lifting platform (33). One end of the output shaft of the rod (35) is fixedly connected to the inner wall of one side of the return frame (34); a U-shaped mounting frame (36) is fixed to one end of the return frame (34) close to the first pressure plate (27); a saw blade (37) is rotatably connected inside the U-shaped mounting frame (36); the saw blade (37) is used to make grooves on the outer wall of the rotating shaft (4); a mounting plate (38) is fixed to the bottom of the U-shaped mounting frame (36); a laser rangefinder (39) is fixed to one side of the mounting plate (38) for measuring the distance between the saw blade (37) and the rotating shaft (4).

4. The shaft automation production equipment according to claim 3, characterized in that: The transposition structure comprises a second pressing plate (40) sliding in the rectangular groove (30), and the second pressing 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 pressing 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), and 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 in contact with the inner ring of the rotating shaft (25). The outer wall is fixedly connected, the outer ring of the one-way bearing (42) is fixed with a gear (43), the top of the bottom plate (22) is slidably connected with a rack (45) meshing with the gear (43), the one-way bearing (42) is used to control the rack (45) to drive the gear (43) to rotate in one direction, the top of the rack (45) is rotatably connected with a connecting rod (46), the top of the connecting rod (46) is rotatably connected with one side of the second pressure plate (40), and the cooperation between the second pressure plate (40) and the connecting rod (46) is used to drive the rack (45) to move.

5. The automatic shaft production equipment according to claim 4, characterized in that: A collecting trough (47) for collecting iron filings is provided at the top of the bottom plate (22), a vertical plate (51) is slidably connected in the collecting trough (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 filings into the collecting trough (47), the inclined plate (48) is sleeved on the outer wall of the rotating shaft (25), the side of the inclined plate (48) away from the collecting trough (47) is fixedly connected to the second pressing plate (40), the second pressing plate (40) drives the inclined plate (48) and the vertical plate (51) to vibrate up and down, a groove (50) is provided on the top of the inclined plate (48) to prevent the iron filings 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 bottom end of the fourth spring (49) is fixedly connected to the top of the bottom plate (22).

6. The method for using the shaft automation production equipment according to claim 5, characterized in that: The following steps are involved: S1. Place the rotating shaft (4) to be grooved 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), while the rubber ring (29) ensures the stability of the clamping; 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 accurately controls the groove depth in combination with the radius of the saw blade (37); the electric push rod (35) drives the saw blade (37) to move to the rotating shaft (4) to a set distance; 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, so that the rotating shaft (4) automatically rotates 180 degrees, ready for the next side of the slot; the electric push rod (35) and the reciprocating screw rod (31) are reset, and the above slotting steps are repeated; S4. During the slotting process, cooling liquid is sprayed onto the saw blade disc (37) through the cooling pipe to reduce the temperature of the saw blade disc (37); the cooling liquid and iron chips flow into the groove (50), and the inclined plate (48) vibrates under the action of the spring, shaking the iron chips into the collection groove (47), thereby realizing automatic collection of the iron chips.

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