Hair straightening device for hair product production

The dual-limit structure driven by a servo motor solves the problems of low efficiency, uneven force, and inconvenient operation of traditional hair straightening devices, and realizes uniform straightening and efficient production of wigs.

CN224179233UActive Publication Date: 2026-05-01ANHUI JUDAYUANFA PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI JUDAYUANFA PRODUCTS CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing hair straightening devices are inefficient, have uneven force distribution, and are inconvenient to operate, which can easily lead to hair damage and inconsistent straightening results. They also lack stable support and a precise drive structure.

Method used

The dual-limit structure driven by a servo motor includes a spiral grooved fit between the support plate and the drive roller. The trapezoidal limit block slides into the limit groove to ensure the horizontal linear movement of the support plate, providing uniform force and preventing gravity sagging and movement trajectory deviation.

Benefits of technology

It achieves uniform straightening of wig hair strands, reduces the risk of hair breakage, improves the consistency of straightening quality and ease of operation, and meets the needs of high-precision automated production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a hair straightening device for hair product production, which comprises a box body, first fixing devices, a servo motor and a second fixing device, the two first fixing devices are mounted on the inner wall of the box body, and two fixing plates are fixedly connected to the inner rear wall of the box body. In the aspect of driving and motion control, a driving roller is in sliding clamping connection with a fixing rod at the bottom of a supporting plate through a spiral open groove and is matched with sliding fit between a trapezoidal limiting block on a fixing plate and a limiting groove of the supporting plate, and the rotating motion of a servo motor is accurately converted into reciprocating horizontal linear motion of the supporting plate; the problem that the motion trail is unstable due to traditional single-side driving or simple transmission is thoroughly solved. The double-limiting structure ensures that the supporting plate does not deviate or shake in the stretching process, the pulling force borne by the two ends of the wig is uniform and stable, the consistency of the straightening quality is remarkably improved, and the situation that the wig is damaged or the straightening effect is inconsistent due to uneven stress is avoided.
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Description

A hair straightening device for hair product manufacturing Technical Field

[0001] This utility model relates to the field of hair product manufacturing technology, specifically a hair straightening device for hair product manufacturing. Background Technology

[0002] In the hair product manufacturing industry, the straightening process of wigs is a crucial step in determining product quality. Its core lies in achieving directional stretching of the hair strands through uniform force, while avoiding damage caused by gravity or concentrated mechanical stress. Currently, traditional hair straightening devices often employ manual stretching or simple mechanical clamping. Operators must manually hold both ends of the hair strands and apply tension, which is not only inefficient but also makes it difficult to control the uniformity of the tension, easily leading to hair breakage or inconsistent straightening results. While some mechanized devices have drive mechanisms, they lack effective support structures for the hair strands. This causes the wig strands to sag under their own weight during stretching, deviating from the horizontal axis of force, concentrating the stretching force in localized areas, affecting the straightening effect and increasing the risk of hair damage.

[0003] Furthermore, traditional drive systems often employ single-sided drive or simple gear transmission, resulting in insufficient stability of the motion trajectory. For example, an unreasonable connection structure between the drive roller and the support plate can easily cause the support plate to shift or wobble during reciprocating motion, failing to achieve precise horizontal linear motion and leading to uneven force on the hair strands. Simultaneously, existing equipment has a rudimentary human-machine interface, cumbersome loading and fixing operations, and lacks a closed working space, allowing external dust or debris to easily contaminate the hair strands and affect the cleanliness of the processing environment. To address these issues, there is an urgent need for a new type of hair straightening device with stable support, precise drive, and a uniform force distribution structure to overcome the shortcomings of existing technologies, such as low straightening efficiency, unstable quality, and inconvenient operation, and to meet the demands of industrialized hair product production for high-precision, automated processing. Summary of the Invention

[0004] In order to solve the problems mentioned in the background art, the present invention provides a hair straightening device for hair product manufacturing.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hair straightening device for hair product manufacturing includes a housing, a first fixing device, servo motors, and a second fixing device. Two first fixing devices are installed on the inner wall of the housing. Two fixing plates are fixedly connected to the inner rear wall of the housing. A trapezoidal limiting block is fixedly connected to the top of each fixing plate. A support plate is positioned above the fixing plates. Two second fixing devices are respectively fixedly connected to the side wall of the support plate away from the first fixing devices. The two first fixing devices are adapted to the two second fixing devices. A limiting groove is formed at the bottom of the support plate, and the trapezoidal limiting block is slidably engaged inside the limiting groove. Two servo motors are respectively fixedly connected to the side wall of the fixing plate near the second fixing devices. A drive roller is fixedly connected to the drive end of each servo motor via a rotating shaft. A groove is formed on the outer surface of the drive roller, and the groove is spiral-shaped. A fixing rod is fixedly connected to the bottom of the support plate, and the bottom end of the fixing rod is slidably engaged inside the groove.

[0007] Preferably, the top of the support plate is a horizontal plane.

[0008] Preferably, the end of the drive roller away from the servo motor is rotatably connected to the inner wall of the housing via a rotating shaft.

[0009] Preferably, the front surface of the enclosure is provided with an enclosure door.

[0010] Preferably, both servo motors are electrically connected to an external power supply via wiring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model, through the innovative design of a stable support and precise drive structure, systematically solves the problems of low straightening efficiency, uneven force distribution, and inconvenient operation found in traditional hair straightening devices. The horizontally positioned support plate provides a flat support surface for the artificial hair, effectively offsetting the influence of the hair's own weight. This ensures that the force direction remains horizontal throughout the stretching process, avoiding localized stress concentration caused by gravity-induced sagging. This fundamentally improves the uniformity of the straightening effect and reduces the risk of hair breakage.

[0013] 2. In terms of drive and motion control, the drive roller is slidably engaged with the bottom fixing rod of the support plate through a spiral groove. This, combined with the sliding engagement between the trapezoidal limiting block on the fixing plate and the limiting groove on the support plate, precisely converts the rotational motion of the servo motor into the reciprocating horizontal linear motion of the support plate. This completely solves the problem of unstable motion trajectory caused by traditional single-sided drive or simple transmission. This dual-limiting structure ensures that the support plate does not shift or wobble during stretching, resulting in uniform and stable tension on both ends of the hair strands. This significantly improves the consistency of straightening quality and avoids hair damage or inconsistent straightening effects caused by uneven force. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1. Box body; 2. First fixing device; 3. Fixing plate; 4. Servo motor; 5. Trapezoidal limit block; 6. Support plate; 7. Second fixing device; 8. Limiting groove; 9. Fixing rod; 10. Drive roller; 11. Slot. Detailed Implementation

[0016] Example

[0017] Please refer to Figure 1. A hair straightening device for hair product manufacturing includes a housing 1, a first fixing device 2, a servo motor 4, and a second fixing device 7. The two first fixing devices 2 are installed on the inner wall of the housing 1. Two fixing plates 3 are fixedly connected to the inner rear wall of the housing 1. A trapezoidal limiting block 5 is fixedly connected to the top of the fixing plate 3. A support plate 6 is provided above the fixing plate 3. The two second fixing devices 7 are respectively fixedly connected to the side wall of the support plate 6 away from the first fixing devices 2. The two first fixing devices 2 and the two second fixing devices 7 are respectively adapted to each other. A limiting groove 8 is opened at the bottom of the support plate 6. The trapezoidal limiting block 5 is slidably engaged in the inside of the limiting groove 8. The two servo motors 4 are respectively fixedly connected to the side wall of the fixing plate 3 near the second fixing devices 7. The drive end of the servo motor 4 is fixedly connected to a drive roller 10 through a rotating shaft. A groove 11 is opened on the outer surface of the drive roller 10. The groove 11 is spiral in shape. A fixing rod 9 is fixedly connected to the bottom of the support plate 6. The bottom end of the fixing rod 9 is slidably engaged in the inside of the groove 11.

[0018] The top of the support plate 6 is a horizontal plane, which can provide a flat and stable support surface for the hair wig, ensuring that the hair wig remains horizontal during the straightening process and avoiding uneven force caused by the tilt of the support surface, thereby improving the consistency of the straightening effect.

[0019] The end of the drive roller 10 furthest from the servo motor 4 is rotatably connected to the inner wall of the housing 1 via a rotating shaft, forming a stable rotating structure supported at both ends. This ensures that the drive roller 10 remains balanced when rotating at high speed, avoids radial sway caused by unilateral drive, and thus ensures the smoothness and accuracy of the reciprocating linear motion of the support plate 6.

[0020] The front surface of the housing 1 is equipped with a door, which allows operators to easily open the door to perform the loading, fixing and unloading of wigs, improving the ease of use and human-machine interaction of the device. At the same time, when the door is closed, it can form a closed workspace to reduce external interference.

[0021] Both servo motors 4 are electrically connected to an external power supply via a line, providing a stable power supply to the servo motors 4 and ensuring that they can accurately control the speed and direction of rotation, thereby achieving precise drive of the drive roller 10 to meet the straightening process requirements of different materials and lengths of hair strands.

[0022] The working principle of this utility model is as follows: When using the hair straightening device for hair product production, the operator first opens the door on the front surface of the box 1, puts the hair strands to be straightened into the box 1, fixes one end of the hair strands to the second fixing device 7 on the support plate 6, and fixes the other end to the first fixing device 2. Most of the hair strands are supported by the support plate 6 to reduce the influence of the hair strands' own weight on the straightening process. After fixing, the servo motor 4 drives the drive roller 10 at the bottom of the shaft to rotate. The spiral groove 11 on the outer surface of the drive roller 10 slides and engages with the fixing rod 9 at the bottom of the support plate 6. At the same time, the trapezoidal limiting block 5 on the top of the fixing plate 3 slides and engages with the limiting groove 8 of the support plate 6. The two work together to restrict the movement trajectory of the support plate 6 to a reciprocating horizontal linear motion. When the drive roller 10 rotates, the spiral groove 11 moves the support plate 6 away from or towards the first fixing device 2 through the fixing rod 9. The sliding engagement of the trapezoidal limiting block 5 in the limiting groove 8 ensures that the support plate 6 moves only in the horizontal direction, avoiding deviation or shaking. When the support plate 6 moves away from the first fixing device 2, the second fixing device 7 moves synchronously with the support plate 6, applying a horizontal pulling force to the hair strands. Since the support plate 6 continuously supports the middle of the hair strands, it effectively counteracts the gravity of the hair strands, making the pulling force evenly distributed along the entire length of the hair strands, thereby achieving the stretching and straightening of the hair strands. The spiral groove design 11 of the drive roller 10 allows the support plate 6 to move back and forth during the continuous rotation of the drive roller 10, enabling multiple stretching operations to be completed without frequent motor start-stop, thus improving straightening efficiency. The limiting fit structure between the support plate 6 and the fixed plate 3 ensures that the hair strands are always under horizontal force during the stretching process, avoiding hair damage or inconsistent straightening effects caused by uneven force.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0024] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hair straightening device for hair product manufacturing, comprising a housing (1), a first fixing device (2), a servo motor (4), and a second fixing device (7), characterized in that: Two first fixing devices (2) are installed on the inner wall of the box (1). Two fixing plates (3) are fixedly connected to the inner rear wall of the box (1). A trapezoidal limiting block (5) is fixedly connected to the top of the fixing plate (3). A support plate (6) is provided above the fixing plate (3). Two second fixing devices (7) are respectively fixedly connected to the side wall of the support plate (6) away from the first fixing devices (2). The two first fixing devices (2) are respectively adapted to the two second fixing devices (7). A limiting groove is opened at the bottom of the support plate (6). (8) The trapezoidal limiting block (5) is slidably engaged inside the limiting groove (8). The two servo motors (4) are respectively fixedly connected to the side wall of the fixing plate (3) near the second fixing device (7). The driving end of the servo motor (4) is fixedly connected to the driving roller (10) through the rotating shaft. The outer surface of the driving roller (10) is provided with a slot (11). The slot (11) is spiral in shape. The bottom of the support plate (6) is fixedly connected to the fixing rod (9). The bottom end of the fixing rod (9) is slidably engaged inside the slot (11).

2. The hair straightening device for hair product manufacturing according to claim 1, characterized in that: The top of the support plate (6) is a horizontal plane.

3. The hair straightening device for hair product manufacturing according to claim 1, characterized in that: The end of the drive roller (10) away from the servo motor (4) is rotatably connected to the inner wall of the housing (1) via a rotating shaft.

4. The hair straightening device for hair product manufacturing according to claim 1, characterized in that: The front surface of the box (1) is provided with a box door.

5. A straightening device for straightening hair strands for the production of hair products according to claim 1, characterized in that: Both of the servo motors (4) are electrically connected to an external power supply via wiring.