A limit comb automatic adjustment structure and trimmer

Abstract

The present invention provides a limit comb automatic adjustment structure and a trimmer. The limit comb automatic adjustment structure includes a blade, a limit comb, a hairstyle setting module, a first adjustment mechanism and a second adjustment mechanism, and also includes an angular velocity sensor and a posture verification module. The angular velocity sensor is used to detect the second Euler angle data, and the posture verification module is used to determine whether the trimming position of the trimmer is consistent with the position of the corresponding head contour point; the hairstyle data includes limit length data and limit angle data. In the present invention, the hairstyle data of each trimming indication area is set in the hairstyle setting module, so that the first adjustment mechanism and the second adjustment mechanism connected to the limit comb automatically drive the limit comb to move forward and backward and adjust the angle according to the hairstyle data, respectively. By comparing the second Euler angle data with the first Euler angle data, it is ensured that the hairstyle trimming effect achieved by the automatic adjustment of the limit comb during trimming is consistent with the hairstyle requirement set by the user.

Description

Technical Field

[0001] The invention relates to the technical field of hairdressing equipment, and in particular to an automatic adjustment structure of a limit comb and a trimmer. Background Art

[0002] With the progress of the economy and society, more and more people will consider timeliness, hygiene and economy in their lives, which has led to an increasing number of people doing their own haircuts at home. As a result, various smart hair clippers have appeared on the market. The existing smart hair clippers on the market have complex structures, and the steps of haircutting are cumbersome, which easily causes users to forget the next step. In addition, the inclination angle of the limit comb cannot be adjusted automatically, which easily leads to a large difference in the height of the haircuts between different trimming areas, and it is impossible to achieve an ideal haircut effect. Summary of the invention

[0003] In order to solve at least one aspect of the above problems, the present invention first provides an automatic adjustment structure of a limit comb, comprising a blade, a limit comb, a hairstyle setting module and a main controller, wherein the limit comb is connected to a first adjustment mechanism and a second adjustment mechanism, wherein the first adjustment mechanism, the second adjustment mechanism and the hairstyle setting module are all connected to the main controller, wherein the hairstyle setting module is used to generate a plurality of trimming indication areas and hairstyle data of each trimming indication area according to a pre-stored head contour model, wherein the head contour model has a head contour point, and the head contour point has a first Euler angle data; further comprising an angular velocity sensor and a posture verification module connected to the main controller, wherein the angular velocity sensor is used to detect the second Euler angle data when the trimmer trims the head trimming area corresponding to the trimming indication area, and the posture verification module is used to detect whether the second Euler angle data is consistent with the first Euler angle data to determine whether the trimming position of the trimmer is consistent with the position of the corresponding head contour point; the hairstyle data comprises limit length data and limit angle data, wherein the first adjustment mechanism is used to drive the limit comb to move forward and backward relative to the blade according to the limit length data, and the second adjustment mechanism is used to drive the limit comb to adjust the angle according to the limit angle data.

[0004] Optionally, the hairstyle setting module includes a length modification module, and the length modification module is used for allowing the user to adjust the hairstyle data of the trimming indication area.

[0005] Optionally, the first adjustment mechanism includes a first motor and a length adjustment component, both ends of the length adjustment component are respectively connected to the first motor and the limit comb, and the first motor drives the length adjustment component to push the limit comb to move forward and backward.

[0006] Optionally, the length adjustment assembly includes an adjusting screw, an adjusting nut and a positioning support rod, one end of the positioning support rod is connected to the adjusting nut and the other end is connected to the limiting comb, the adjusting screw is connected to the first motor, and the adjusting nut cooperates with the adjusting screw.

[0007] Optionally, the length adjustment assembly further comprises a first photoelectric encoding disk and a first photoelectric sensor which are inductively coupled to each other, and the first photoelectric encoding disk is sleeved outside the adjusting screw.

[0008] Optionally, a touch switch is provided on the front side of the limit comb, and the touch switch is electrically connected to the main controller.

[0009] Optionally, the second adjustment mechanism includes a second motor and an angle adjustment component, two ends of the angle adjustment component are respectively connected to the second motor and the limit comb, and the second motor drives the angle adjustment component to push the limit comb to adjust the angle.

[0010] Optionally, the angle adjustment assembly includes a reversing gear box and a left adjustment assembly and a right adjustment assembly connected to the left and right sides of the reversing gear box. The reversing gear box is connected to the second motor, and when the second motor drives the reversing gear box to work, it drives the left adjustment assembly and the right adjustment assembly to move in opposite directions.

[0011] Optionally, the left adjusting component includes a left connecting rod and a left support arm push rod, one end of the left connecting rod is connected to the reversing gear box, and the other end is connected to the left gear, one end of the left support arm push rod is provided with a left rack meshing with the left gear, and the other end is connected to the left end of the limiting comb; the right adjusting component includes a right connecting rod and a right support arm push rod, one end of the right connecting rod is connected to the reversing gear box, and the other end is connected to the right gear, one end of the right support arm push rod is provided with a right rack meshing with the right gear, and the other end is connected to the right end of the limiting comb.

[0012] Optionally, the left adjustment component and / or the right adjustment component further comprises a second photoelectric encoding disk and a second photoelectric sensor that are inductively coupled to each other, and the second photoelectric encoding disk is sleeved outside the left connecting rod and / or the right connecting rod.

[0013] Compared with the prior art, the automatic adjustment structure of the limit comb in the present invention sets the hairstyle data of each trimming indication area in the hairstyle setting module, so that the first adjustment mechanism and the second adjustment mechanism connected to the limit comb automatically drive the limit comb to move forward and backward and adjust the angle according to the hairstyle data, and an angular velocity sensor is set to detect the second Euler angle data of the head trimming area and compare the second Euler angle data with the first Euler angle data of the trimming indication area of ​​the head contour model, so as to ensure that the trimmer starts the trimming work normally only when the second Euler angle data is consistent with the first Euler angle data, thereby ensuring that the hairstyle trimming effect achieved by the automatic adjustment of the limit comb during trimming can be consistent with the hairstyle requirement set by the user. Not only is the user operation simple and easy to use, but it can also effectively ensure that the hairstyle lengths between different head trimming areas can have a smooth transition to achieve an ideal haircutting effect.

[0014] In addition, the present invention provides a trimmer including the above-mentioned limit comb automatic adjustment structure.

[0015] Compared with the prior art, the trimmer of the present invention and the above-mentioned limit comb automatic adjustment structure have the same advantages over the prior art, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the automatic adjustment structure of the limit comb of the embodiment of the present invention Figure 1 ;

[0017] Figure 2 The structure of the automatic adjustment structure of the limit comb of the embodiment of the present invention Figure 2 ;

[0018] Figure 3 A schematic diagram of the limit comb of an embodiment of the present invention moving forward and backward and adjusting the angle;

[0019] Figure 4 It is a structural block diagram of the automatic adjustment structure of the limit comb according to an embodiment of the present invention;

[0020] Figure 5 is a schematic diagram of a head contour model according to an embodiment of the present invention;

[0021] Figure 6 Schematic diagram of the trimming indication area in the hairstyle setting module of an embodiment of the present invention Figure 1 ;

[0022] Figure 7 Schematic diagram of the trimming indication area in the hairstyle setting module of an embodiment of the present invention Figure 2 ;

[0023] Figure 8 Schematic diagram of the trimming indication area in the hairstyle setting module of an embodiment of the present invention Figure 3;

[0024] Fig. 9 It is a schematic diagram of adjusting a hairstyle model for user reference in a hairstyle setting module according to an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 10. Blade; 20. Positioning comb; 30. Hair style setting module; 301. Length modification module; 302. Trimming indication area; 40. Main controller; 50. First adjustment mechanism; 501. First motor; 502. Length adjustment assembly; 5021. Adjustment screw; 5022. Positioning support rod; 5023. First photoelectric encoder disk; 5024. First photoelectric sensor; 5025. First reduction gear box; 60. Second adjustment mechanism; 601. Second motor; 602. Angle adjustment assembly; 6021. , reversing gear box; 6022, left adjustment component; 60221, left connecting rod; 60222, left support arm push rod; 60223, left gear; 6023, right adjustment component; 60231, right connecting rod; 60232, right support arm push rod; 60233, right gear; 603, second photoelectric encoder; 604, second photoelectric sensor; 70, head contour model; 701, head contour point; 80, angular velocity sensor; 90, posture verification module; 100, third motor; 110, touch switch. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is normally used.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. A coordinate system XYZ is provided in the drawings of the embodiments of the present invention, wherein the positive direction of the X-axis represents the right, the reverse direction of the X-axis represents the left, the positive direction of the Y-axis represents the front, the reverse direction of the Y-axis represents the back, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom.

[0030] The embodiment of the present invention provides a limit comb automatic adjustment structure, combined with Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, it includes a blade 10, a limit comb 20, a hairstyle setting module 30 and a main controller 40, wherein the limit comb 20 is connected to a first adjustment mechanism 50 and a second adjustment mechanism 60, wherein the first adjustment mechanism 50, the second adjustment mechanism 60 and the hairstyle setting module 30 are all connected to the main controller 40, and the hairstyle setting module 30 is used to generate a plurality of trimming indication areas 302 and hairstyle data of each trimming indication area 302 according to a pre-stored head contour model 70, wherein the head contour model 70 has a head contour point 701, and the head contour point 701 has a first Euler angle data; and further includes an angular velocity sensor 80 and a posture checker connected to the main controller 40. Module 90, the angular velocity sensor 80 is used to detect the second Euler angle data when the trimmer is trimming the head trimming area corresponding to the trimming indication area 302, and the posture verification module 90 is used to detect whether the second Euler angle data is consistent with the first Euler angle data to determine whether the trimming position of the trimmer is consistent with the position of the corresponding head contour point 701; the hairstyle data includes limit length data and limit angle data, the first adjustment mechanism 50 is used to drive the limit comb 20 to move forward and backward relative to the blade 10 according to the limit length data, and the second adjustment mechanism 60 is used to drive the limit comb 20 to adjust the angle according to the limit angle data.

[0031] Among them, the main controller 40 is arranged in the trimmer, and the user holds and pushes the trimmer to perform mobile trimming operations when the trimmer is trimming. The limit comb 20 is arranged in front of the blade 10, the blade 10 is used to cut hair, and the limit comb 20 is used to limit the length of hair trimming. The blade 10 is connected to the third motor 100, and the third motor 100 can drive the blade 10 to perform hair cutting operations when working; the number of trimming indication areas 302 is preferably eight, and there are three trimming indication areas 302 on the left and right sides of the head respectively, and two trimming indication areas 302 on the top of the head. The trimming indication areas 302 are divided into multiple areas to facilitate users to perform trimming operations in steps and reduce the difficulty of trimming.

[0032] The number of head trimming areas is also eight, which correspond to the trimming indication areas 302 one by one. The head trimming area refers to the position of the user's head corresponding to the position of the head indication area when the user trims his or her hair style. The head contour model 70 is obtained by collecting the user's head contour data by the collector and recording and saving it. The head contour model 70 is obtained by combining multiple head contour points 701, and each head contour point 701 corresponds to a first Euler angle data.

[0033] The blade 10 and the limit comb 20 are installed at the front end of the trimmer, the first adjustment mechanism 50, the second adjustment mechanism 60, the main controller 40 and the angular velocity sensor 80 are all arranged in the trimmer, the blade 10, the first adjustment mechanism 50, the second adjustment mechanism 60, the angular velocity sensor 80 are all electrically connected to the main controller 40, the hairstyle setting module 30 and the posture verification module 90 can be installed on the trimmer and electrically connected to the main controller 40, or can be installed on the smart terminal and connected to the main controller 40 by wireless communication, and the wireless communication connection method is preferably Bluetooth connection, the hairstyle setting module 30 generates the hairstyle data of each trimming indication area 302 according to the pre-stored head contour model 70 and sends the hairstyle data to the main controller 40, the hairstyle data is the hairstyle result expected by the user, and the main controller 40 generates the hairstyle data according to the hairstyle data The main controller 40 controls the change of the action of the first adjusting mechanism 50 in real time according to the limit length data, so that the limit comb 20 can move forward and backward relative to the blade 10 in real time. The main controller 40 also controls the change of the action of the second adjusting mechanism 60 in real time according to the limit angle data of the hairstyle data, so that the limit comb 20 can change the angle in real time. The angle refers to the angle between the limit comb 20 and the blade 10 in the left and right directions. The hairstyle data includes the limit length data and the limit angle data, so that the hairstyle of a certain head contour point 701 corresponding to the user after automatic trimming can reach the specified inclination angle, so as to have a perfect transition with the hairstyle of the adjacent head contour point 701 after automatic trimming. In addition, after the first adjusting mechanism 50 pushes the limit comb 20 to move away from the blade 10, the second adjusting mechanism 60 can also adjust the angle of the limit comb 20 in a larger range.

[0034] The angular velocity sensor 80 is installed in the trimmer and its installation inclination angle is consistent with the inclination angle of the blade 10, so as to accurately detect the current posture of the trimmer. The angular velocity sensor 80 is preferably a gyroscope sensor; the main controller 40 sends the second Euler angle data detected by the angular velocity sensor 80 to the posture verification module 90, and the posture verification module 90 compares the second Euler angle data with the corresponding pre-stored first Euler angle data of the head contour point 701. Only when the second Euler angle data is consistent with the first Euler angle data, it means that the position and posture of the trimmer are consistent with the position of the head contour point 701. At this time, the trimmer can perform the trimming operation. Otherwise, the posture verification module 90 will prompt and guide the user to adjust the posture of the trimmer, such as prompting the user to move the head or tail of the trimmer up or down.

[0035] For another example, when the head trimming area does not correspond to the trimming indication area 302, such as when the trimming indication area 302 on the left ear is required to be trimmed, but the trimmer is in the posture of trimming the right ear, the second Euler angle data of the current user actually holding the trimmer is transmitted to the posture detection module via wireless Bluetooth. The posture detection module will guide the user to adjust to the best posture of the trimmer, specifically the rotation direction, the upward or downward tilt of the blade 10 and other prompts.

[0036] When the trimmer is trimming the user's hairstyle, the same trimming operation will be performed on each head trimming area in turn. During the trimming process, the limit comb 20 adjusts its position in real time according to the hairstyle data. When all the head trimming areas are trimmed, the ideal hairstyle set by the hairstyle setting module 30 can be obtained. The pre-stored head contour model 70 can be the head contour models 70 of multiple users. When performing the trimming work, the selected head contour model 70 must be the current user's own head contour model 70.

[0037] The limit comb automatic adjustment structure in this embodiment sets the hairstyle data of each trimming indication area 302 in the hairstyle setting module 30, so that the first adjustment mechanism 50 and the second adjustment mechanism 60 connected to the limit comb 20 automatically drive the limit comb 20 to move forward and backward and adjust the angle according to the hairstyle data, and an angular velocity sensor 80 is set to detect the second Euler angle data of the head trimming area and compare the second Euler angle data with the first Euler angle data of the trimming indication area 302 of the head contour model 70, so as to ensure that the trimmer starts the trimming work normally only when the second Euler angle data is consistent with the first Euler angle data, thereby ensuring that the hairstyle trimming effect achieved by the automatic adjustment of the limit comb 20 during trimming can be consistent with the hairstyle requirement set by the user. Not only is the user operation simple and easy to use, but it can also effectively ensure that the hairstyle lengths between different head trimming areas can have a smooth transition to achieve an ideal haircutting effect.

[0038] Optionally, combined Figure 1 , Figure 4 , Fig. 9 As shown, the hairstyle setting module 30 includes a length modification module 301 , and the length modification module 301 is used for the user to adjust the hairstyle data of the trimming indication area 302 .

[0039] The hairstyle setting module 30 will provide a hairstyle model for user reference based on the head contour model 70. The user can adjust the length of the hairstyle model provided for reference through the length modification module 301 to generate an adjusted hairstyle model. The adjustment method includes lengthening the hair length, shortening the hair length, or not modifying the hair length. For example, as shown in the figure, the user clicks to modify the hair length of a certain modification indication area in the hairstyle setting module 30. The hair length recommended by the hairstyle setting module 30 is such as curve M. After clicking to modify, curve N will be generated. After the modification is confirmed, the hairstyle setting module 30 will first make an accumulated difference to the original length to form a new hairstyle data and send it to the main controller of the trimmer via wireless Bluetooth. The trimmer adjusts the length and angle of the limit according to the hairstyle data.

[0040] In this embodiment, a length modification model is set so that the hairstyle setting module 30 can provide the user with a reference hairstyle or fine-tune the reference hairstyle according to the head contour data, thereby making the selection and design of the hairstyle more intelligent and meeting the user's higher usage requirements.

[0041] Optionally, combined Figure 1 , Figure 2 , Figure 4 As shown, the first adjustment mechanism 50 includes a first motor 501 and a length adjustment component 502. The two ends of the length adjustment component 502 are respectively connected to the first motor 501 and the limit comb 20. The first motor 501 drives the length adjustment component 502 to push the limit comb 20 to move forward and backward.

[0042] Among them, the length adjustment component 502 is connected to the center position of the lower end of the limit comb 20 to ensure that it does not interfere with the hair trimming operation of the blade 10 located above. The forward and reverse rotation of the first motor 501 can drive the length adjustment component 502 to extend and retract, so that the first adjustment mechanism 50 pushes the limit comb 20 to move forward and backward; the first motor 501 is electrically connected to the main controller 40, and the main controller 40 drives the first motor 501 to perform corresponding work according to the limit length data, so as to achieve the purpose of moving the limit comb 20 relative to the blade 10.

[0043] Optionally, combined Figure 1 , Figure 2 As shown, the length adjustment component 502 includes an adjusting screw 5021, an adjusting nut and a positioning support rod 5022, one end of the positioning support rod 5022 is connected to the adjusting nut, and the other end is connected to the limiting comb 20, the adjusting screw 5021 is connected to the first motor 501, and the adjusting nut cooperates with the adjusting screw 5021.

[0044] Among them, one end of the positioning support rod 5022 is fixedly connected to the outer wall of the adjusting nut, and the other end is fixedly connected to the middle part of the lower end of the limiting comb 20; the end of the adjusting screw 5021 connected to the adjusting nut is provided with an external thread of a certain length, and the external thread is matched with the adjusting nut; a first reduction gear box 5025 is provided between the first motor 501 and the adjusting screw 5021 to reduce the rotation speed of the first motor 501 so that the output torque is larger to ensure that the first motor 501 drives the adjusting screw 5021 to rotate when working. During the rotation of the adjusting screw 5021, the adjusting nut can move in the front and rear directions relative to the adjusting screw 5021, thereby realizing the change of the position of the limiting comb 20.

[0045] In this embodiment, the structure of adjusting screw 5021 and adjusting nut is adopted so that the first motor 501 can drive the limit comb 20 to move by moving the positioning support rod 5022 forward and backward. The structure is simple and the forward and backward position change of the limit comb 20 is stable and reliable.

[0046] Optionally, combined Figure 1 , Figure 2 As shown, the length adjustment component 502 further includes a first photoelectric encoding disk 5023 and a first photoelectric sensor 5024 that are inductively coupled to each other, and the first photoelectric encoding disk 5023 is sleeved outside the adjustment screw 5021 .

[0047] Among them, the first photoelectric encoding disk 5023 is fixedly connected to the outside of the adjusting screw 5021, and when the adjusting screw 5021 rotates, it can drive the first photoelectric encoding disk 5023 to rotate synchronously. The first photoelectric sensor 5024 can be set on the trimmer housing or on the first reduction gear box 5025, and the position of the first photoelectric sensor 5024 remains fixed; the first photoelectric encoding disk 5023 and the first photoelectric sensor 5024 are used in conjunction with each other to detect the rotation speed and number of turns of the adjusting screw 5021, so that the main controller 40 calculates the distance moved by the adjusting nut relative to the adjusting screw 5021 in the front-to-back direction according to the rotation speed and number of turns of the adjusting screw 5021; the first photoelectric encoding disk 5023 is provided with a plurality of holes, and a high level is obtained when the first photoelectric sensor 5024 coincides with the hole, and a low level is obtained when the first photoelectric sensor 5024 does not coincide with the hole.

[0048] In this embodiment, the first photoelectric encoder disk 5023 is arranged on the adjusting screw 5021, and the first photoelectric encoder disk 5023 and the first photoelectric sensor 5024 are mutually inductively sensed during the rotation of the adjusting screw 5021 to control the moving distance according to the received limit length data, so as to ensure the reliability and accuracy of the forward and backward movement position of the limit comb 20. In addition, the moving distance data of the limit comb 20 detected by the first photoelectric sensor 5024 will also be fed back to the hairstyle setting module 30 through the main controller 40, so as to provide real-time feedback on the current trimming situation of the trimmer.

[0049] Optionally, combined Figure 1 , Figure 2 , Figure 4 As shown, a touch switch 110 is provided on the front side of the limit comb 20 , and the touch switch 110 is electrically connected to the main controller 40 .

[0050] Among them, when the user uses the trimmer to trim hair by himself, only when the front side of the limit comb 20 contacts the user's head contour can the trimmed length meet the set hairstyle requirements. Therefore, a touch switch 110 is provided on the front side of the limit comb 20, which helps to ensure in real time that the limit comb 20 is always in contact with the head contour. If the limit comb 20 does not contact the head contour, the trimmer will not continue the trimming work, thereby greatly ensuring the ideal effect of hair trimming.

[0051] Optionally, combined Figure 1 , Figure 2 , Figure 4 As shown, the second adjustment mechanism 60 includes a second motor 601 and an angle adjustment component 602. The two ends of the angle adjustment component 602 are respectively connected to the second motor 601 and the limit comb 20. The second motor 601 drives the angle adjustment component 602 to push the limit comb 20 to adjust the angle.

[0052] Among them, the angle adjustment component 602 is connected to the left and / or right position of the limit comb 20. When the second motor 601 is working, the angle adjustment component 602 can drive the limit comb 20 to rotate, so as to realize the change of the angle between the limit comb 20 and the blade 10 in the left and right directions. The forward and reverse rotation of the second motor 601 can drive the angle adjustment component 602 to extend and retract, so as to realize the second adjustment mechanism 60 pushing the limit comb 20 to change the angle; the second motor 601 is electrically connected to the main controller 40, and the main controller 40 drives the second motor 601 to perform corresponding work according to the limit angle data, so as to achieve the purpose of adjusting the angle of the limit comb 20 relative to the blade 10.

[0053] Optionally, combined Figure 1 , Figure 2 As shown, the angle adjustment component 602 includes a reversing gear box 6021 and a left adjustment component 6022 and a right adjustment component 6023 connected to the left and right sides of the reversing gear box 6021. The reversing gear box 6021 is connected to the second motor 601. When the second motor 601 drives the reversing gear box 6021 to work, it drives the left adjustment component 6022 and the right adjustment component 6023 to move in opposite directions.

[0054] The reversing gearbox 6021 also includes a deceleration function to reduce the rotation speed of the second motor 601, so that the output torque is greater, so as to ensure that the second motor 601 drives the left adjustment component 6022 and the right adjustment component 6023 to move when working; the reversing gearbox 6021 is composed of three bevel gears, one of which is fixedly connected to the motor shaft of the second motor 601, and the other two bevel gears are respectively located on the left and right sides of the bevel gear and are respectively meshed with the bevel gear, and the bevel gears on the left and right sides are respectively connected to the left adjustment component 6022 and the right adjusting component 6023 are fixedly connected, so that when the second motor 601 rotates, the left adjusting component 6022 and the right adjusting component 6023 can move in opposite directions respectively; the left adjusting component 6022 and the right adjusting component 6023 are respectively connected to the left and right sides of the limit comb 20, and when the left adjusting component 6022 pushes the left end of the limit comb 20 forward, the right adjusting component 6023 pulls the right end of the limit comb 20 backward, thereby changing the angle between the limit comb 20 and the blade 10 in the left and right directions.

[0055] In this embodiment, two left and right adjustment components are used to drive the limiting comb 20 to change its angle, so that the angle adjustment of the limiting comb 20 is more stable and reliable, and can also play a supporting role on both sides of the limiting comb 20, so that when the trimmer is trimming, the position of the limiting comb 20 will not be changed by external force, and the extended length and inclination angle of the limiting comb 20 can be kept accurate to achieve an ideal haircutting effect.

[0056] Optionally, combined Figure 1 , Figure 2 As shown, the left adjusting component 6022 includes a left connecting rod 60221 and a left support arm push rod 60222, one end of the left connecting rod 60221 is connected to the reversing gear box 6021, and the other end is connected to the left gear 60223, one end of the left support arm push rod 60222 is provided with a left rack meshing with the left gear 60223, and the other end is connected to the left end of the limiting comb 20; the right adjusting component 6023 includes a right connecting rod 60231 and a right support arm push rod 60232, one end of the right connecting rod 60231 is connected to the reversing gear box 6021, and the other end is connected to the right gear 60233, one end of the right support arm push rod 60232 is provided with a right rack meshing with the right gear 60233, and the other end is connected to the right end of the limiting comb 20.

[0057] Among them, the left adjustment component 6022 and the right adjustment component 6023 have the same structure and are symmetrically arranged; when the reversing gear box 6021 drives the left connecting rod 60221 to rotate forward, the left gear 60223 drives the left rack to move backward, that is, the left support arm push rod 60222 also moves backward, thereby driving the left end of the limit comb 20 to move backward, and at the same time, when the reversing gear box 6021 drives the right connecting rod 60231 to rotate backward, the right gear 60233 drives the right rack to move forward, that is, the right support arm push rod 60232 also moves forward, thereby driving the right end of the limit comb 20 to move forward, thereby realizing the adjustment of the angle of the limit comb 20.

[0058] Optionally, combined Figure 1 , Figure 2 As shown, the left adjustment component 6022 and / or the right adjustment component 6023 also includes a second photoelectric encoding disk 603 and a second photoelectric sensor 604 that are inductively coupled to each other, and the second photoelectric encoding disk 603 is sleeved outside the left connecting rod 60221 and / or the right connecting rod 60231.

[0059] The second photoelectric encoder 603 is fixedly connected to the outside of the left connecting rod 60221 and / or the right connecting rod 60231. When the left connecting rod 60221 and / or the right connecting rod 60231 rotates, the second photoelectric encoder 603 can be driven to rotate synchronously. The second photoelectric sensor 604 can be arranged on the trimmer housing or on the reversing gear box 6021. The position of the second photoelectric sensor 604 is fixed and unchanged. The second photoelectric encoder 603 is used in conjunction with the second photoelectric sensor 604 to detect the left connecting rod 60221 and the right connecting rod 60231. / or the rotation speed and number of revolutions of the right connecting rod 60231, so that the main controller 40 calculates the distance that the left rack moves in the front-to-back direction relative to the left gear 60223 and / or the distance that the right rack moves in the front-to-back direction relative to the right gear 60233 according to the rotation speed and number of revolutions of the left connecting rod 60221 and / or the right connecting rod 60231; the second photoelectric encoder disk 603 is provided with a plurality of holes, and a high level is obtained when the second photoelectric sensor 604 coincides with the hole, and a low level is obtained when the second photoelectric sensor 604 does not coincide with the hole.

[0060] In this embodiment, a second photoelectric encoder 603 is provided on the left connecting rod 60221 and / or the right connecting rod 60231, and during the rotation of the connecting rod and / or the right connecting rod 60231, the second photoelectric encoder 603 and the second photoelectric sensor 604 are inductively coupled to each other to control the angle change of the limit comb 20 according to the received limit angle data, so as to ensure the reliability and accuracy of the angle adjustment position of the limit comb 20; the left support arm push rod 60222 and the right support arm push rod 60232 are made of metal to ensure the supporting strength.

[0061] Preferably, combined Figure 1 , Figure 2 , Figure 3 As shown, the ratio between the length distance of the limit comb 20 extended or retracted and the angle between the limit comb 20 and the blade 10 in the left and right directions is 1:3. The ratio is set to ensure that the limit comb 20 will not interfere with the blade 10 when it rotates to the maximum angle in the left and right directions relative to the blade 10. For example, the first motor 501 is transmitted to the adjusting screw 5021 through the first reduction gear box 5025, and the first photoelectric sensor 5024 detects that the adjusting screw 5021 rotates 1 circle, and is set to 1 circle equal to 1 mm. Then, the current position of the position points A, B, and C is 1 mm away from the starting position. The second motor 601 is transmitted to the left connecting rod 60221 and the right connecting rod 60231 through the reversing gear box 6021, and the second photoelectric sensor Device 604 detects that the left connecting rod 60221 and the right connecting rod 60231 rotate one circle, and is set to 1 circle equal to 1mm. At this time, the distance between the current position of position point A and the starting position is -1mm, and the distance between the current position of position point C and the starting position is +1mm. The angle of the limit comb 20 changes by about 3° when the extended length of the limit comb 20 changes by 1mm. Therefore, this ratio is set to 1:3. In this way, if the angle of the limit comb 20 needs to be adjusted by 1°, it is only necessary to push the limit comb 20 forward by 0.33mm, and at the same time, the left support arm push rod 60222 and the right support arm push rod 60232 also move 0.33mm in opposite directions respectively; the above-mentioned position points A, B, and C are three points located at the left, middle, and right positions of the limit comb 20, respectively.

[0062] Another embodiment of the present invention provides a trimmer, comprising the above-mentioned limit comb automatic adjustment structure.

[0063] The limit comb automatic adjustment structure in this embodiment sets the hairstyle data of each trimming indication area 302 in the hairstyle setting module 30, so that the first adjustment mechanism 50 and the second adjustment mechanism 60 connected to the limit comb 20 automatically drive the limit comb 20 to move forward and backward and adjust the angle according to the hairstyle data, and an angular velocity sensor 80 is set to detect the second Euler angle data of the head trimming area and compare the second Euler angle data with the first Euler angle data of the trimming indication area 302 of the head contour model 70, so as to ensure that the trimmer starts the trimming work normally only when the second Euler angle data is consistent with the first Euler angle data, thereby ensuring that the hairstyle trimming effect achieved by the automatic adjustment of the limit comb 20 during trimming can be consistent with the hairstyle requirement set by the user. Not only is the user operation simple and easy to use, but it can also effectively ensure that the hairstyle lengths between different head trimming areas can have a smooth transition to achieve an ideal haircutting effect.

[0064] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A limit comb automatic adjustment structure, characterized in that: The invention comprises a blade (10), a limit comb (20), a hairstyle setting module (30) and a main controller (40), wherein the limit comb (20) is connected to a first adjustment mechanism (50) and a second adjustment mechanism (60), wherein the first adjustment mechanism (50), the second adjustment mechanism (60) and the hairstyle setting module (30) are all connected to the main controller (40), wherein the hairstyle setting module (30) is used to generate a plurality of trimming indication areas (302) and hairstyle data of each trimming indication area (302) according to a pre-stored head contour model (70), wherein the head contour model (70) has a head contour point (701), and the head contour point (701) has first Euler angle data; and further comprises an angular velocity sensor (80) and a posture verification module (90) connected to the main controller (40), wherein the angular velocity sensor (80) is used to detect the position of the trimmer in the head trimming area corresponding to the trimming indication area (302). The method comprises the steps of: determining a second Euler angle data when trimming the hair in the trimming indication area (302); the posture verification module (90) is used to detect whether the second Euler angle data is consistent with the first Euler angle data to determine whether the trimming position of the trimmer is consistent with the position of the corresponding head contour point (701); the hairstyle data comprises limit length data and limit angle data; the first adjustment mechanism (50) is used to drive the limit comb (20) to move forward and backward relative to the blade (10) according to the limit length data; the second adjustment mechanism (60) is used to drive the limit comb (20) to adjust the angle according to the limit angle data; the hairstyle setting module (30) comprises a length modification module (301); the length modification module (301) is used for allowing a user to adjust the hairstyle data of the trimming indication area (302); a touch switch (110) is provided on the front side of the limit comb (20); and the touch switch (110) is electrically connected to the main controller (40).

2. The automatic adjustment structure of the limit comb according to claim 1, characterized in that: The first adjustment mechanism (50) comprises a first motor (501) and a length adjustment component (502), and two ends of the length adjustment component (502) are respectively connected to the first motor (501) and the limit comb (20), and the first motor (501) drives the length adjustment component (502) to push the limit comb (20) to move forward and backward.

3. The automatic adjustment structure of the limit comb according to claim 2, characterized in that: The length adjustment component (502) comprises an adjustment screw (5021), an adjustment nut and a positioning support rod (5022), one end of the positioning support rod (5022) is connected to the adjustment nut, and the other end is connected to the limit comb (20), the adjustment screw (5021) is connected to the first motor (501), and the adjustment nut cooperates with the adjustment screw (5021).

4. The automatic adjustment structure of the limit comb according to claim 3 is characterized in that: The length adjustment component (502) further comprises a first photoelectric encoding disk (5023) and a first photoelectric sensor (5024) that are inductively coupled to each other, wherein the first photoelectric encoding disk (5023) is sleeved outside the adjustment screw (5021).

5. The automatic adjustment structure of the limit comb according to any one of claims 1 to 4, characterized in that: The second adjustment mechanism (60) comprises a second motor (601) and an angle adjustment component (602); two ends of the angle adjustment component (602) are respectively connected to the second motor (601) and the limit comb (20); the second motor (601) drives the angle adjustment component (602) to push the limit comb (20) to adjust the angle.

6. The automatic adjustment structure of the limit comb according to claim 5, characterized in that: The angle adjustment component (602) comprises a reversing gear box (6021) and a left adjustment component (6022) and a right adjustment component (6023) connected to the left and right sides of the reversing gear box (6021); the reversing gear box (6021) is connected to the second motor (601); when the second motor (601) drives the reversing gear box (6021) to work, it drives the left adjustment component (6022) and the right adjustment component (6023) to move in opposite directions.

7. The automatic adjustment structure of the limit comb according to claim 6, characterized in that: The left adjustment component (6022) comprises a left connecting rod (60221) and a left support arm push rod (60222); one end of the left connecting rod (60221) is connected to the reversing gear box (6021), and the other end is connected to a left gear (60223); one end of the left support arm push rod (60222) is provided with a left rack meshing with the left gear (60223), and the other end is connected to the left end of the limit comb (20); The right adjustment component (6023) comprises a right connecting rod (60231) and a right support arm push rod (60232); one end of the right connecting rod (60231) is connected to the reversing gear box (6021), and the other end is connected to a right gear (60233); one end of the right support arm push rod (60232) is provided with a right rack meshing with the right gear (60233), and the other end is connected to the right end of the limit comb (20).

8. The automatic adjustment structure of the limit comb according to claim 7, characterized in that: The left adjustment component (6022) and / or the right adjustment component (6023) further comprises a second photoelectric encoding disk (603) and a second photoelectric sensor (604) which are inductively coupled to each other, and the second photoelectric encoding disk (603) is sleeved on the outside of the left connecting rod (60221) and / or the right connecting rod (60231).

9. A trimmer, characterized in that: It comprises the automatic adjustment structure of the limit comb as described in any one of claims 1 to 8.

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