An automatic wave curler

Abstract

The utility model relates to the technical field of hair care, and specifically discloses an automatic wavy hair curler, which comprises a hair curling mechanism for curling hair, a metering rotating roller installed at the side of the hair curling mechanism, and a metering assembly located at the end of the metering rotating roller and used for metering the number of rotating circles of the metering rotating roller. The automatic wavy hair curler can effectively solve the problem that the existing wavy hair curler cannot measure the length of hair.

Description

Technical Field

[0001] This utility model relates to the field of hair care technology, and in particular to an automatic wave curling iron. Background Technology

[0002] A wave curling iron is a hair styling tool used to create wavy or curly hairstyles. Current wave curling irons can only curl hair and lack hair length measurement functions, thus failing to meet the demands of a younger market.

[0003] Therefore, this invention aims to improve existing wave curling irons to solve the problem that they cannot measure hair length.

[0004] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide an automatic wave curling iron that can effectively solve the problem that existing wave curling irons cannot measure hair length.

[0006] To achieve the above objectives, this utility model provides an automatic wave curling iron, including a curling mechanism for curling hair, a measuring roller installed on the side of the curling mechanism, and a measuring component located at the end of the measuring roller for measuring the number of rotations of the measuring roller.

[0007] Optionally, the curling mechanism includes:

[0008] Two curling irons;

[0009] A rotary drive mechanism, wherein the drive end of the rotary drive mechanism is connected to the two hair curling parts for driving the two hair curling parts to rotate in order to curl the hair.

[0010] Optionally, the curling iron is U-shaped;

[0011] The hair curling component includes a pivot section, a rotating section, and a U-shaped groove located between the pivot section and the rotating section;

[0012] The two hair curling components are in an interlaced state where they are driven in the forward direction by the rotation drive mechanism and rotated until the rotating part of each hair curling component is embedded in the U-shaped groove of the other hair curling component; and in a separated state where they are driven in the reverse direction by the rotation drive mechanism and rotated until the rotating part of each hair curling component is disengaged from the U-shaped groove of the other hair curling component.

[0013] Optionally, the rotary drive mechanism is connected to the two curling irons via a gear assembly;

[0014] The gear assembly includes:

[0015] Mounting plate;

[0016] Two rotating bushings are provided corresponding to the two rotating shaft parts, and the two rotating bushings are rotatably mounted on the mounting plate; wherein, the rotating shaft part is provided with a plug-in part that is synchronously connected to the corresponding rotating bushing.

[0017] Two bushing gears are provided in one-to-one correspondence with the two rotating bushings. Each bushing gear is fixedly sleeved on one of the rotating bushings and is synchronously rotated and connected with the corresponding rotating bushing.

[0018] A central gear is rotatably mounted on the mounting plate and meshes with the two bushing gears; wherein the central gear is connected to the drive end of the rotary drive mechanism.

[0019] Optionally, the automatic wave curler has two spaced-apart wave shaping plates inside, and a turntable driven by the rotation drive mechanism is provided between the two wave shaping plates. The two curling parts are installed and fixed on the turntable.

[0020] Optionally, the curling tool is rectangular or cylindrical.

[0021] Optionally, the curling iron is equipped with a heating plate inside.

[0022] Optionally, the metering component includes a rotating light-blocking plate fixed at the end of the metering roller, and a photoelectric sensor for detecting the number of times the rotating light-blocking plate blocks light.

[0023] Optionally, it may also include a clamping roller disposed opposite to the metering roller, and a clamping drive assembly for driving the clamping roller closer to the metering roller.

[0024] Optionally, the clamping drive assembly includes:

[0025] A fixing box is provided with an internal space and a guide groove connecting the internal space to the external space of the fixing box; wherein the end of the clamping roller extends into the internal space of the box through the guide groove;

[0026] A torsion spring is installed in the space inside the box and abuts against the end of the clamping roller to drive the clamping roller along the guide groove toward the metering roller.

[0027] The beneficial effects of this utility model are as follows: It provides an automatic wave curling iron with two application scenarios, which is sufficient to ensure the realization of the length measurement function:

[0028] Scenario 1: Pure Length Measurement. When the user only needs to measure hair length, the heating function of the curling mechanism can be left off. In this state, the automatic wave curler functions simply as a hair length measuring tool. Since there is no heating, there is no need to worry about burning the scalp. The user can place the measuring roller at the roots or any custom starting point, then pull down the ends of the hair with one hand and pull down the automatic wave curler with the other. This will cause the measuring roller to rotate, triggering the measuring component to count the curls. During this process, the hair is straightened, avoiding tangles and knots caused by loose hair, thus obtaining an accurate total hair length.

[0029] Scenario 2: Simultaneous Styling and Measurement. When a user needs to achieve wavy curls, this mode measures not the total hair length, but rather the "effective hair length that has been successfully styled." During operation, the curling mechanism begins working at a safe distance from the roots (to avoid burning the scalp), and styling and measurement are performed simultaneously. The measuring roller records the length of the hair after passing the styling point and already styled.

[0030] Therefore, the automatic wave curler provided by this utility model can effectively solve the problem that existing wave curlers cannot measure hair length. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the external structure of the automatic wave curling iron provided in the embodiment;

[0033] Figure 2 An exploded view of the automatic wave curling iron provided in the embodiment;

[0034] Figure 3 A schematic diagram of the internal structure of the automatic wave curling iron provided in the embodiment;

[0035] Figure 4 A schematic diagram of the automatic wave curler provided in the embodiment in an alternating state;

[0036] Figure 5 A schematic diagram of the automatic wave curler in the detached state provided in the embodiment;

[0037] Figure 6 A schematic diagram of the gear assembly provided in the embodiment;

[0038] Figure 7 A schematic diagram of the clamping drive assembly provided in the embodiment;

[0039] Figure 8 This is a schematic diagram of a rectangular hair curler provided in an embodiment when the hair has not been curled or styled.

[0040] Figure 9 This is a schematic diagram illustrating the use of a rectangular hair curler in a curling and styling process, as provided in the embodiment.

[0041] Figure 10 This is a schematic diagram of the circular hair curler provided in the embodiment when the hair has not been curled or styled.

[0042] Figure 11 This is a schematic diagram of the circular hair curler provided in the embodiment during hair curling and styling.

[0043] In the picture:

[0044] 1. Hair curling mechanism; 101. Hair curling component; 1011. Rotating shaft; 1011a. Insertion part; 1011b. Internal space of the tube; 1012. Rotating part; 1013. U-shaped groove; 1014. Heating plate; 102. Rotation drive mechanism; 103. Turntable; 104. Wave shaping plate;

[0045] 2. Metering roller;

[0046] 3. Metering components; 301. Rotating light-blocking plate; 302. Photoelectric sensor;

[0047] 4. Curling iron half-shell;

[0048] 5. Gear assembly; 501. Mounting plate; 502. Rotating bushing; 503. Bushing gear; 504. Center gear;

[0049] 6. Clamp the rotating roller;

[0050] 7. Clamping drive assembly; 701. Fixing box; 7011. Guide groove; 702. Torsion spring. Detailed Implementation

[0051] In this utility model, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this utility model, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0052] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit the invention.

[0053] In the description of this utility model, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " generally indicates that the preceding and following objects have an "or" logical relationship.

[0054] In this invention, terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy, or order between these entities or operations.

[0055] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this invention is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a series of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0056] Similar to the understanding in the Examination Guidelines, in this utility model, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this utility model, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0057] In the description of the embodiments of this utility model, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the convenience of describing the specific embodiments of this utility model or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0058] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this utility model, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this utility model pertains, the specific meaning of the above terms in the embodiments of this utility model can be understood according to the specific circumstances.

[0059] This invention provides an automatic wave curling iron, suitable for applications where hair is curled into wave shapes. It effectively solves the problem that existing wave curling irons cannot measure hair length.

[0060] See Figures 1-3 The automatic wave curler includes a curling mechanism 1 for curling hair, a measuring roller 2 mounted on the side of the curling mechanism 1, and a measuring component 3 located at the end of the measuring roller 2 for measuring the number of rotations of the measuring roller 2.

[0061] This utility model's automatic wave curler is designed for two application scenarios, sufficient to ensure the realization of the length measurement function:

[0062] Scenario 1: Pure Length Measurement. When the user only needs to measure hair length, the heating function of the curling mechanism 1 can be left off. In this state, the automatic wave curler functions simply as a hair length measuring tool. Since there is no heating, there is no need to worry about burning the scalp. The user can place the measuring roller 2 at the roots of the hair or any custom starting point, then pull down the ends of the hair with one hand and pull down the automatic wave curler with the other hand. This will cause the measuring roller 2 to rotate, thereby triggering the measuring component 3 to count the rotations. During this process, the hair is straightened, avoiding problems such as tangling and knotting caused by loose hair, thus obtaining an accurate total hair length.

[0063] Scenario 2: Simultaneous Measurement for Styling. When a user needs to curl their hair in waves, this mode measures not the total hair length, but rather the "effective hair length that has been successfully styled." During operation, the curling mechanism 1 begins working at a safe distance from the hair roots (to avoid burning the scalp), and styling and measurement are performed simultaneously. The measuring roller 2 records the length of the hair after it has been styled, following the styling point.

[0064] Furthermore, when the hair causes the measuring roller 2 to rotate, the measuring component 3 can obtain the number of rotations of the measuring roller 2. The hair length can then be calculated based on the diameter of the measuring roller 2 and the number of rotations. The hair length calculation can be expressed by the formula: Hair length = ×D×Q, the aforementioned The symbol represents pi (π), D represents the diameter of the metering roller 2, and Q represents the number of rotations of the metering roller 2.

[0065] It should be noted that, generally, curling irons are used from top to bottom, that is, the automatic wave curler moves from the roots to the ends of the hair. Of course, users can also, according to their own needs, pull down the ends of the hair with one hand and drive the automatic wave curler from bottom to top with the other hand.

[0066] When measuring hair length, users should pull the automatic wave curler in one direction only (either continuously pulling down or continuously pulling up to ensure that the measuring roller 2 rotates in one direction) to avoid measurement errors caused by back-and-forth movement (pulling down a distance and then pulling up a distance, the measuring roller 2 will rotate in both directions).

[0067] Accordingly, the metering component 3 includes a rotating light-blocking plate 301 fixed at the end of the metering roller 2, and a photoelectric sensor 302 for detecting the number of times the rotating light-blocking plate 301 blocks light. The photoelectric sensor 302 can calculate the rotation parameters of the rotating light-blocking plate 301 based on the number of times the rotating light-blocking plate 301 blocks light, and then calculate the number of rotations of the metering roller 2.

[0068] Of course, in some other embodiments, considering the scenario that "the user may accidentally pull the automatic wave curler back slightly during actual operation, causing the measuring roller 2 to reverse several revolutions," the measuring component 3 can also be designed as a rotary encoder. Specifically, the rotatable brush of the rotary encoder is coaxially and fixedly connected to the measuring roller 2; the circuit board with the code track of the rotary encoder is fixedly set relative to the curler half-shell 4. The measuring roller 2 drives the drive shaft of the brush to rotate, thereby generating a corresponding electrical signal, and thus recording the number of revolutions Q of the measuring roller 2. Since the rotary encoder can identify the direction of rotation, it can eliminate the number of revolutions of the measuring roller 2 in the reverse direction, thereby reducing measurement errors and improving measurement convenience.

[0069] Of course, a reset button can also be set. If the user accidentally pulls the automatic wave curler back, pressing the reset button will clear the count of rotations and allow for a new measurement.

[0070] Therefore, the automatic wave curler provided by this utility model can effectively solve the problem that existing wave curlers cannot measure hair length.

[0071] The hair curling mechanism 1 includes two hair curling parts 101 and a rotary drive mechanism 102 whose drive end is pulsatorically connected to the two hair curling parts 101. The rotary drive mechanism 102 is used to drive the two hair curling parts 101 to rotate in order to curl the hair.

[0072] Furthermore, the automatic wave curler also includes two opposing curler shells 4, with each curling element 101 mounted inside one of the curler shells 4, and a metering roller 2 mounted inside either of the curler shells 4.

[0073] It is worth noting that the specific shape of the hair curling component in this utility model can have multiple implementations.

[0074] As an optional implementation method, see [link to implementation details]. Figures 3-7 The curling iron has an overall U-shaped structure.

[0075] Specifically, the U-shaped hair curler 101 includes a pivot portion 1011, a rotating portion 1012, and a U-shaped groove 1013 located between the pivot portion 1011 and the rotating portion 1012. The two hair curlers 101 are forward-driven by the rotation drive mechanism 102, rotating to an interleaved state where the rotating portion 1012 of each hair curler 101 is embedded in the U-shaped groove 1013 of the other hair curler 101 (e.g., ...). Figure 4 As shown); and having a reverse drive by the rotation drive mechanism 102, rotating until the rotating part 1012 of each hair curl 101 is disengaged from the U-shaped groove 1013 of the other hair curl 101 (as shown). Figure 5 (As shown).

[0076] Initially, the rotary drive mechanism 102 causes the two curling pieces 101 to rotate to a separated state so that the hair can be placed between the two curling pieces 101. Then, the rotary drive mechanism 102 causes the two curling pieces 101 to rotate to an interlaced state, and the hair is bent into an S-shape by the two curling pieces 101. At this time, the heating plate 1014 inside the rotating part 1011 and the rotating part 1012 is activated to heat the hair. Then, the automatic wave curler is pulled down to create a wave style for the hair.

[0077] Therefore, in this embodiment, the separation and interlacing states of the two curling pieces 101 are automatically controlled by the rotary drive mechanism 102. When the rotary drive mechanism 102 causes the two curling pieces 101 to rotate to the interlacing state, the metering roller 2 will not rotate because the two curling pieces 101 rotate to the interlacing state. At this time, the hair does not move on the metering roller 2. Only when the two curling pieces 101 pull the hair down will the metering roller 2 that is in contact with the hair rotate. This ensures that the hair length can be accurately calculated based on the number of rotations of the metering roller 2.

[0078] It should be noted that in this embodiment, the hair drives the measuring roller 2 to rotate, and the hair length is calculated based on the number of rotations of the measuring roller 2. Therefore, regardless of whether the hair is straight or curly, the number of rotations of the measuring roller 2 is only related to the relative movement distance of the hair on the measuring roller 2. As mentioned above, "the hair is bent into an S-shape by two curling parts 101", which is not related to "the relative movement distance of the hair on the measuring roller 2". Since the hair is in direct contact with the measuring roller 2, the relative movement distance of the hair on the measuring roller 2 can reflect the length of the hair being measured. Therefore, in this embodiment, the length of the hair being measured can be accurately calculated based on the number of rotations of the measuring roller 2.

[0079] In this embodiment, the rotary drive mechanism 102 is connected to the two hair curlers 101 via the gear assembly 5.

[0080] It should be noted that the heating plate 1014 in this embodiment can be a PTC heating plate in conventional technology. Of course, those skilled in the art can also use other types of heating plates, which will not be specifically specified in this document. Specifically, the heating plate 1014 is disposed inside the rotating part 1012 and inside the rotating shaft part 1011. The heating plate 1014 is electrically connected to a switch (the switch is usually located on the curling iron half shell 4, not shown in the figure) through a power cord. When the switch is turned on, the heating plate 1014 is connected to the power supply through the power cord, and the heating plate 1014 is energized and heats up. When the switch is turned off, the power cord of the heating plate 1014 is disconnected, and the heating plate 1014 is de-energized.

[0081] See Figure 6 The rotary drive mechanism 102 is connected to the two hair curlers 101 via the gear assembly 5. Optionally, the gear assembly 5 includes a mounting plate 501, two rotating bushings 502 that correspond one-to-one with the two rotating shaft parts 1011, two bushing gears 503 that correspond one-to-one with the two rotating bushings 502, and a central gear 504.

[0082] Two rotating bushings 502 are rotatably mounted on the mounting plate 501; wherein, the rotating shaft portion 1011 is provided with an insertion portion 1011a that is synchronously rotatably connected to the corresponding rotating bushing 502. Each bushing gear 503 is fixedly sleeved on one rotating bushing 502 and is synchronously rotatably connected to the corresponding rotating bushing 502. The central gear 504 is rotatably mounted on the mounting plate 501 and meshes with the two bushing gears 503; wherein, the central gear 504 is drive-connected to the drive end of the rotary drive mechanism 102.

[0083] The rotary drive mechanism 102 drives the central gear 504 to rotate, and the central gear 504 can then drive the corresponding hair curler 101 to rotate around its own pivot 1011 in sequence through the bushing gear 503, the rotating bushing 502, and the insertion part 1011a.

[0084] In this embodiment, the plug-in part 1011a is a hollow tubular structure. The power cord enters the curling iron 101 from the outside through the tubular space 1011b of the plug-in part 1011a and is electrically connected to the heating plate 1014.

[0085] See Figure 7 Optionally, the automatic wave curler also includes a clamping roller 6 disposed opposite to the metering roller 2, and a clamping drive assembly 7 for driving the clamping roller 6 close to the metering roller 2.

[0086] The clamping drive assembly 7 includes a fixed box 701 and a torsion spring 702. The fixed box 701 has an internal space and a guide groove 7011 that connects the internal space to the external space of the fixed box 701; wherein, the end position of the clamping roller 6 extends into the internal space of the box through the guide groove 7011; the torsion spring 702 is installed in the internal space of the box and abuts against the end position of the clamping roller 6, for driving the clamping roller 6 to move closer to the metering roller 2 along the guide groove 7011.

[0087] It should be noted that in this embodiment, the clamping drive assembly 7 drives the clamping roller 6 to press against the metering roller 2, thereby clamping the hair between them. This clamping structure ensures that the hair generates sufficient friction with the surface of the metering roller 2 during the pull-down process, driving the metering roller 2 to rotate precisely corresponding to the hair's movement stroke. Without the clamping roller 6, the hair and the metering roller 2 may slip relative to each other due to insufficient contact, causing the number of rotations of the metering roller 2 to fail to accurately reflect the actual distance the hair moves, thus introducing significant measurement errors.

[0088] Furthermore, the torsion spring 702 is a conventional elastic element in the art, and its specific parameters can be selected according to the required clamping force. The surface friction coefficient of the clamping roller 6 is also not specifically limited, as long as it can effectively clamp and transmit hair.

[0089] As an alternative, the curling iron can also be rectangular or circular, or other shapes. Furthermore, both rectangular and circular curling irons have a heating plate inside. When the curling iron is used to curl the user's hair, the heat emitted by the heating plate heats the user's hair, allowing for quick styling while the hair is being curled.

[0090] For example, as shown in the appendix Figure 8As shown, the automatic wave curler has two wave-setting plates 104 fixedly arranged at relative intervals inside. A turntable 103 driven by a rotary drive mechanism is located between the two wave-setting plates 104. Two rectangular curling irons 101 are mounted and fixed on the turntable 103. There is a spaced area between the two rectangular curling irons 101 for hair to enter. When the rotary drive mechanism rotates the turntable 103, [see...] Figure 9 The rectangular curling iron 101 rotates with the turntable 103, thereby orienting the hair to the inner surface of the wave styling plate 104. After heating and styling, the hair can be formed into a wave shape that matches the inner surface of the wave styling plate 104.

[0091] For example, as shown in the appendix Figure 10 As shown, the automatic wave curler has two diagonally opposite wave-setting plates fixed inside. A turntable 103, driven by a rotary drive mechanism, is located between the two wave-setting plates 104. Two circular curling irons 101 are mounted and fixed on the turntable 103. There is a spacer area between the two circular curling irons 101 for hair to enter. When the rotary drive mechanism rotates the turntable 103, [see...] Figure 11 The circular hair curler 101 rotates with the turntable 103, thereby directing the hair toward the inner surface of the wave styling plate 104. After heating and styling, the hair can be formed into a wave shape that matches the inner surface of the wave styling plate 104.

[0092] In summary, the automatic wave curler provided in this embodiment has the following advantages:

[0093] ① When the automatic wave curler is pulled down, the curling component heats and curls the hair into waves. At the same time, the hair drives the measuring roller 2 to rotate, and the hair length is calculated.

[0094] ② The clamping drive assembly 7 is set up to drive the clamping roller 6 to cooperate with the metering roller 2 to clamp the hair, thereby improving the metering accuracy of the metering roller 2.

[0095] It should be noted that the linear drive mechanism mentioned in this utility model can be a cylinder, hydraulic cylinder, electric cylinder, or motor lead screw linear module, etc., and the rotary drive mechanism mentioned can be a brushed motor, brushless motor, or rotary cylinder, etc. This utility model does not limit the specific structural form of the linear drive mechanism and the rotary drive mechanism.

[0096] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. An automatic wave curling iron, characterized in that, It includes a hair curling mechanism (1) for curling hair, a measuring roller (2) installed on the side of the hair curling mechanism (1), and a measuring component (3) located at the end of the measuring roller (2) for measuring the number of rotations of the measuring roller (2).

2. The automatic wave curling iron according to claim 1, characterized in that, The hair curling mechanism (1) includes: Two curling irons (101); A rotary drive mechanism (102) is provided, the drive end of which is connected to the two hair curling pieces (101) for driving the two hair curling pieces (101) to rotate in order to curl the hair.

3. The automatic wave curling iron according to claim 2, characterized in that, The hair curling piece (101) is U-shaped; The hair curling component (101) includes a pivot portion (1011), a rotating portion (1012), and a U-shaped groove (1013) located between the pivot portion (1011) and the rotating portion (1012). The two hair curling pieces (101) are in an interlaced state where they are driven in the forward direction by the rotation drive mechanism (102) and rotated until the rotating part (1012) of each hair curling piece (101) is embedded in the U-shaped groove (1013) of the other hair curling piece (101); and in a separated state where they are driven in the reverse direction by the rotation drive mechanism (102) and rotated until the rotating part (1012) of each hair curling piece (101) is disengaged from the U-shaped groove (1013) of the other hair curling piece (101).

4. The automatic wave curling iron according to claim 3, characterized in that, The rotary drive mechanism (102) is connected to the two hair curling pieces (101) via a gear assembly (5); The gear assembly (5) includes: Mounting plate (501); Two rotating bushings (502) are provided in a one-to-one correspondence with the two rotating shaft parts (1011), and the two rotating bushings (502) are rotatably mounted on the mounting plate (501); wherein, the rotating shaft part (1011) is provided with a plug-in part (1011a) that is synchronously rotatably connected to the corresponding rotating bushing (502). Two bushing gears (503) are provided in a one-to-one correspondence with the two rotating bushings (502). Each bushing gear (503) is fixedly sleeved on one of the rotating bushings (502) and is synchronously rotated and connected with the corresponding rotating bushing (502). A central gear (504) is rotatably mounted on the mounting plate (501) and meshes with the two bushing gears (503); wherein the central gear (504) is connected to the drive end of the rotary drive mechanism (102).

5. The automatic wave curling iron according to claim 2, characterized in that, The automatic wave curler has two spaced wave shaping plates (104) fixed inside. A turntable (103) driven by the rotation drive mechanism (102) is provided between the two wave shaping plates (104). The two curling parts (101) are installed and fixed on the turntable (103).

6. The automatic wave curling iron according to claim 5, characterized in that, The curling component (101) is rectangular or cylindrical.

7. The automatic wave curling iron according to claim 2, characterized in that, The hair curling tool (101) has a heating plate (1014) inside.

8. The automatic wave curling iron according to claim 1, characterized in that, The metering component (3) includes a rotating light-blocking plate (301) fixed at the end of the metering roller (2) and a photoelectric sensor (302) for detecting the number of times the rotating light-blocking plate (301) blocks light.

9. The automatic wave curling iron according to claim 8, characterized in that, It also includes a clamping roller (6) disposed opposite to the metering roller (2), and a clamping drive assembly (7) that drives the clamping roller (6) to approach the metering roller (2).

10. The automatic wave curling iron according to claim 9, characterized in that, The clamping drive assembly (7) includes: A fixed box (701) is provided with an inner space and a guide groove (7011) that connects the inner space to the outer space of the fixed box (701); wherein the end of the clamping roller (6) extends into the inner space of the box through the guide groove (7011); A torsion spring (702) is installed in the space inside the box and abuts against the end position of the clamping roller (6) to drive the clamping roller (6) along the guide groove (7011) to approach the metering roller (2).

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