An automated blade-sharpening mechanism for scissors and its control system

Abstract

This invention discloses an automated sharpening mechanism and control system for scissor blades, relating to the field of scissor sharpening technology. Based on the mechanical sharpening method of scissor blades, it employs a batch sharpening approach. First, the workpiece body is optimized for fixation using direct clamping. A key difference is that the workpiece body has a small sliding capability due to the ball bearings on the clamp. Crucially, an upper pressure plate and a lower support plate are used to fix the blade holder within the workpiece body using an upper pressure and lower support method. During operation, feedback is primarily based on the vibration frequency generated by the workpiece body, specifically using ultra-high, medium, and low frequency components. This method directly obtains the grinding state of the workpiece body. Secondly, a pressing action is applied to the ultra-high frequency components, specifically utilizing the force difference between the upper and lower pressure plates to drive the workpiece body to move slightly. The purpose is to avoid over-grinding, which could affect the grinding quality or the quality of the grinding wheel.

Description

Technical Field

[0001] This invention relates to the field of scissor blade sharpening technology, specifically to an automated scissor blade sharpening mechanism and its control system. Background Technology

[0002] The industrial-scale sharpening process for scissor blades can be found in the details of publication number CN114905347A. Essentially, it involves a structure like a grinding wheel contacting the blade edge while rotating at a constant speed. From the perspective of high production efficiency, this process is mostly used for batch processing of workpieces. Specifically, multiple workpieces are arranged and fixed in sequence, and then sharpened one by one or simultaneously. The purpose is to shorten the processing cycle by eliminating the need for repeated loading and unloading.

[0003] During the sharpening process, due to factors such as slight angular deviations, vibration, and temperature, the processing quality of one or more workpieces may be flawed. Specifically, the localized high temperature (up to 300-400℃) generated by the grinding wheel during the sharpening process, combined with mechanical stress, can easily lead to visible micro-cracks on the cutting edge if cooling is not timely or the feed rate is too large, or even chipping or rolling of the edge. However, during the processing, it is necessary to ensure sufficient contact between the workpiece and the grinding wheel to achieve a complete grinding and sharpening effect. Since multiple workpieces are sharpened simultaneously, how to ensure the processing quality of batch workpieces is the aspect that this invention needs to solve, to avoid inconsistent processing quality and problems related to over- or under-processing of single / multiple workpieces. The following technical solution is proposed to address this issue. Summary of the Invention

[0004] The purpose of this invention is to provide an automated blade-sharpening mechanism and its control system for scissor blades, which addresses the problem of inconsistent processing quality in the batch synchronous processing of scissor blades and avoids the problem of over-processing or under-processing of workpieces.

[0005] The objective of this invention can be achieved through the following technical solution: an automated blade sharpening mechanism for scissors, comprising a base and a blade sharpening actuator. The base is provided with a clamping assembly corresponding to the blade sharpening actuator and a pressing assembly corresponding to the clamping assembly. The clamping assembly consists of a clamping seat, a fixed slide rod, and a clamping actuator. The pressing assembly includes an upper sleeve, a lower sleeve, and multiple curved rods arranged from top to bottom. An upper pressure plate and a lower support plate are respectively installed on the curved rods of the upper sleeve and the lower sleeve.

[0006] An integrated controller and a vibration frequency detector are provided on the base. Multiple workpiece bodies are provided in the clamping assembly. Multiple vibration sensing probes corresponding to the workpiece bodies are provided on the vibration frequency detector. The integrated controller performs top pressure control on the upper sleeve, lower sleeve and cutting action component through the vibration frequency detector.

[0007] The workpiece body is further configured such that it is located in the middle of the clamp between adjacent positions, the fixed slide rod is located on the lower side of the clamp, and the fixed slide rod is slidably connected to the clamp through the clamping plate actuator. Multiple limiting rings corresponding to the clamp are installed on the fixed slide rod, and the fixed slide rod is symmetrically arranged along the width direction of the base.

[0008] The further configuration is as follows: the clamps are arranged linearly and equidistantly along the width direction of the base, and ball bearings are rotatably mounted on the clamps; the limiting rings are arranged in an alternating pattern along the positions of the clamps.

[0009] The base is further configured such that a rod corresponding to the installation position in the workpiece body is provided in the base, and the workpiece body and the rod are rotatably connected.

[0010] Further configured as follows: the middle section of the crank corresponding to the upper end sleeve and the lower end sleeve is rotatably connected to the base in the clockwise and counterclockwise directions respectively; the upper pressure is set at the upper end of the workpiece body and exerts downward pressure on the workpiece body; the lower support is set at the lower side of the workpiece body and exerts upward support on the workpiece body.

[0011] The configuration is further defined as follows: a permanent magnet block is installed at one end of the upper sleeve and the lower sleeve corresponding to the crank rod; the upper sleeve and the lower sleeve are installed on one side of the base; and an electromagnetic assembly corresponding to the permanent magnet block is installed at the lower end and the upper end of the inner part of the upper sleeve and the lower sleeve.

[0012] A further setting is made so that the crank is positioned to match the workpiece body.

[0013] The present invention also proposes a control system for an automated blade sharpening mechanism for scissors, including a subset information collection unit, a single-set motion analysis unit and a multi-set interactive control unit. In the subset information collection unit, the workpiece body is numbered n according to the width direction of the base, and the vibration frequency HZn is obtained through a vibration sensor.

[0014] In the single-set motion analysis unit, each workpiece body is divided into high-frequency, medium-frequency and low-frequency parts according to the vibration frequency HZn. The medium-frequency part indicates that the workpiece body is in a relatively ideal grinding state, the high-frequency part indicates that the workpiece body has an abnormal grinding state with excessive amount, and the low-frequency part indicates that the workpiece body has an abnormal grinding state with insufficient amount.

[0015] The multi-unit interactive control unit does not adjust the workpiece body of the medium-frequency and low-frequency components, and marks the value of the vibration frequency HZn in each overclocking component. It prioritizes the overclocking component with the maximum vibration frequency HZn in descending order until it matches the vibration frequency HZn of the medium-frequency component.

[0016] The present invention has the following beneficial effects:

[0017] This invention proposes a batch sharpening method based on the mechanized sharpening method of scissor blades. The first optimization is to fix the workpiece body. The essence is to directly fix the workpiece body using a clamp. However, the difference is that the workpiece body has a small range of movement during the fixing process due to the movement of the ball bearings on the clamp. The key is to use the upper pressure and lower support to fix the blade holder position in the workpiece body. The purpose is to coordinate with the adjustment process of the workpiece body during the grinding process.

[0018] The key content of this invention is based on the vibration frequency generated when the workpiece body is being ground by the grinding wheel. If the degree of grinding at each cutting edge is different, it will affect the difference in vibration frequency. Specifically, three types of components, namely ultra-high frequency, medium frequency, and low frequency, are differentiated. The medium frequency component represents a relatively ideal grinding state, while the low frequency component reflects the problem of insufficient cutting edge. The key is the workpiece body of the ultra-high frequency component. In order to avoid damage to the grinding wheel or affecting the grinding quality due to excessive cutting edge, a top pressure action is taken in conjunction with the upper pressure and lower support fixing process. Specifically, the force difference between the upper pressure and lower support is used to drive the workpiece body to move slightly. The purpose is to avoid over-grinding, which will affect the grinding quality or the quality of the grinding wheel. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an automated blade sharpening mechanism for scissors proposed in this invention;

[0021] Figure 2 for Figure 1 Lateral sectional view of the central base;

[0022] Figure 3 This is an exploded view of the clip assembly in this invention;

[0023] Figure 4 for Figure 1 A diagram illustrating the action;

[0024] Figure 5 This is a cross-sectional view of the upper sleeve in this invention;

[0025] Figure 6 This is a schematic diagram of the operation of the control system for an automated blade sharpening mechanism for scissors proposed in this invention.

[0026] In the diagram: 1. Base; 2. Lower sleeve; 3. Integrated controller; 4. Upper sleeve; 5. Vibration frequency detector; 6. Sharpening action component; 7. Clamping action component; 8. Workpiece body; 9. Insert rod; 10. Clamping seat; 11. Fixed slide rod; 12. Permanent magnet; 13. Electromagnetic assembly; 14. Curved rod; 15. Upper pressure plate; 16. Lower support; 17. Vibration probe. Detailed Implementation

[0027] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: To address the issue of inconsistent processing quality in the batch synchronous processing of scissor blades and to prevent over- or under-processing of workpieces, the following technical solution is proposed:

[0029] Reference Figures 1-5 In this embodiment, an automated blade sharpening mechanism for scissors includes a base 1 and a blade sharpening actuating component 6. The base 1 is provided with a clamping assembly corresponding to the blade sharpening actuating component 6 and a pressing component corresponding to the clamping assembly. The clamping assembly consists of a clamping seat 10, a fixed slide rod 11, and a clamping actuating component 7. The pressing component includes an upper sleeve 4, a lower sleeve 2, and multiple curved rods 14 arranged from top to bottom. An upper pressure plate 15 and a lower support plate 16 are respectively installed on the curved rods 14 of the upper sleeve 4 and the lower sleeve 2.

[0030] An integrated controller 3 and a vibration frequency detector 5 are installed on the base 1. Multiple workpiece bodies 8 are installed in the clamping assembly. Multiple vibration sensing probes 17 corresponding to the workpiece bodies 8 are installed on the vibration frequency detector 5. The integrated controller 3 controls the pressure of the upper sleeve 4, the lower sleeve 2 and the cutting action part 6 through the vibration frequency detector 5.

[0031] The workpiece body 8 is located in the middle of the clamp 10 between adjacent positions. The fixed slide rod 11 is located on the lower side of the clamp 10, and the fixed slide rod 11 is slidably connected to the clamp 10 through the clamping plate actuating member 7. Multiple limiting rings corresponding to the clamp 10 are installed on the fixed slide rod 11, and the fixed slide rod 11 is symmetrically arranged along the width direction of the base 1. The clamp 10 is linearly and equidistantly arranged along the width direction of the base 1, and ball bearings are rotatably installed on the clamp 10. The limiting rings are staggered along the setting position of the clamp 10. The base 1 is provided with a corresponding insertion rod 9 in the installation position of the workpiece body 8, and the workpiece body 8 and the insertion rod 9 are rotatably connected.

[0032] Working principle: The sharpening process of scissor blades is essentially achieved by continuously grinding the cutting edge with a grinding wheel. Since the structure of scissor blades is not standardized, this invention does not impose major restrictions on the sharpening action component 6. Simply put, after fixing multiple scissor blades, the sharpening action component 6 mainly includes a grinding wheel and a motor assembly. The motor assembly maintains the rotation and movement of the grinding wheel. The movement mainly drives the rotating grinding wheel to move along the cutting edge. This part will not be explained in detail.

[0033] It is important to note that each clamp 10 is primarily used to hold the workpiece body 8. Specifically, the clamp 10 is moved by a fixed slide rod 11 to achieve this. Figure 3 For example, the two fixed slide bars 11 are symmetrically arranged. If each clamp 10 is numbered 1, 2, 3...i along the width direction, then one of the fixed slide bars 11 can only move the clamp 10 with odd numbering, and the other fixed slide bar 11 can only move the clamp 10 with even numbering.

[0034] The fixed slide bar 11 mainly moves the clamping seat 10 through the limiting ring. The movement of the fixed slide bar 11 depends on the clamping plate actuating component 7. The clamping plate actuating component 7 is essentially a push cylinder structure. This method will not be explained in detail, but it is used to indicate the clamping method for scissor blades. However, it should be noted that each clamping seat 10 is equipped with freely rolling balls. The purpose is that when the clamping seat 10 fixes the workpiece body 8, the workpiece body 8 has the ability to slide between each clamping seat 10, which is used to cooperate with the insertion rod 9 to rotate the workpiece body 8.

[0035] Example 2: Based on the sharpening principle in Example 1, the upper pressure piece and lower support piece are explained as follows:

[0036] The middle section of the crank rod 14 corresponding to the upper sleeve 4 and the lower sleeve 2 is rotatably connected to the base 1 in the clockwise and counterclockwise directions, respectively. The upper pressure 15 is set at the upper end of the workpiece body 8 and exerts downward pressure on the workpiece body 8. The lower support 16 is set at the lower side of the workpiece body 8 and exerts upward force on the workpiece body 8. Permanent magnet blocks 12 are installed at one end of the crank rod 14 inside the upper sleeve 4 and the lower sleeve 2. The upper sleeve 4 and the lower sleeve 2 are installed on one side of the base 1. Electromagnetic groups 13 corresponding to permanent magnet blocks 12 are installed at the lower and upper ends of the upper sleeve 4 and the lower sleeve 2. The setting position of the crank rod 14 matches the workpiece body 8.

[0037] Solution Description: Based on the technical content of Embodiment 1, it can be directly understood that although the workpiece body 8 is fixed by the clamp 10, it still retains mobility. Therefore, a top-pressing assembly is needed. First, the structure of the scissor blade is described: the insert rod 9 mainly cooperates with the mounting port position in the scissor blade. The upper pressure element 15 and lower support element 16 in the top-pressing assembly are specifically positioned at the handle position in the scissor blade, and refer to... Figure 4 Explanation:

[0038] The upper pressure plate 15 and the lower support plate 16 are respectively positioned above and below the tool holder. The upper pressure plate 15 and the lower support plate 16 exert downward pressure and upward support force on the tool holder, respectively. When the workpiece body 8 is fixed by the clamp 10 but has the ability to rotate, it can be understood that the entire scissor blade is fixed by the upper pressure plate 15 and the lower support plate 16. The key is the force applied by the upper pressure plate 15 and the lower support plate 16 to the tool holder, which can be simply understood as:

[0039] If the downward pressure generated by the upper pressure plate 15 on the tool holder position is greater than the upward force of the lower support plate 16 on the tool holder position, then the workpiece body 8 in the corresponding position will rotate slightly counterclockwise with the position of the insertion rod 9 as the rotation point. Conversely, it will rotate slightly instantaneously. The key content of this invention is the rotation direction and rotation angle of the crank rod 14 corresponding to the upper pressure plate 15 and the lower support plate 16, which is used to control the clamping force of the upper pressure plate 15 and the lower support plate 16 on the workpiece body 8 and the tilt angle of the workpiece body 8 relative to the insertion rod 9. The purpose is to change the contact distance between the workpiece body 8 and the grinding wheel in the sharpening action member 6.

[0040] The movement of each crank 14 mainly relies on the principle of electromagnetic sensing. Figure 4 For example, a permanent magnet 12 is installed at one end of each crank 14 relative to the upper sleeve 4 and the lower sleeve 2. In order to maintain the tilt direction of the upper and lower cranks 14, the upper sleeve 4 and the lower sleeve 2 ensure that the electromagnetic group 13 in the upper sleeve 4 is set on the lower side of the permanent magnet 12 to maintain the clockwise rotation direction of the upper crank 14. Conversely, the electromagnetic group 13 in the lower sleeve 2 is set on the upper side of the permanent magnet 12 to maintain the counterclockwise rotation of the lower crank 14. The electromagnetic group 13 is essentially based on the principle of electromagnetic induction.

[0041] Example 3: The overall control system will be explained based on Examples 1 and 2:

[0042] Because the key content of this invention lies in batch sharpening, conventional sharpening methods are determined based on empirical parameters. Essentially, the sharpening action component 6 sets the traveling direction and structural angle of the grinding wheel according to the shape (inclination angle) of the cutting edge on the workpiece body 8. Since there are many types of scissor blades, this invention will not elaborate on the specific structural composition of the sharpening action component 6. What needs to be explained is:

[0043] Since the essence of sharpening is grinding, the workpiece body 8 will inevitably vibrate during the sharpening process. To address this, the present invention primarily uses a vibration frequency detector 5 to detect the vibration frequency of the workpiece body 8 in real time. Specifically, it is based on a vibration sensing probe 17. To ensure better detection of the vibration frequency by the vibration sensing probe 17, the probe 17 is magnetically attached to the workpiece body 8 and positioned closer to the sharpening location. Figure 4 As shown, the vibration sensing probe 17 is located near the insertion rod 9;

[0044] Reference Figure 6 The control system for the overall blade-sharpening mechanism is set up as follows during specific operation:

[0045] Subset information collection unit: Each workpiece body 8 is numbered n along the width direction of the base 1, and the vibration frequency of the workpiece body 8 is obtained in real time as HZn through the vibration sensor 17. The current values ​​Is and Ix of the electromagnetic group 13 in the upper sleeve 4 and lower sleeve 2 are set, and the clamping force of the upper pressure plate 15 and lower support plate 16 relative to the workpiece body 8 is generated by combining the length of the crank 14 and the rotation point position relative to the base 1. A brief explanation is given below:

[0046] The tilt angles of the upper and lower curved rods 14 are changed due to the influence of Is and Ix, such as: Fs=Is*k, Fx=Ix*k. k is used as a conversion coefficient for the length of the curved rod 14 and the position of the rotation point relative to the base 1. The length of the curved rod 14 and the position of the rotation point relative to the base 1 are not restricted, so k in this embodiment is just a constant and will not be explained in detail.

[0047] Single-set motion analysis unit: Based on multiple HZn values ​​in the subset information collection unit, interactive motion analysis is performed. In the ideal sharpening motion, the grinding wheel in the sharpening motion component 6 also performs edge grinding in the most ideal state. Then, the vibration frequency HZn in each workpiece body 8 should be completely equal. However, in reality, due to the mass of the workpiece body 8 itself and the wear of the grinding wheel, it is difficult to have such an ideal state. Therefore, in this unit, the multiple sets of vibration frequencies HZn are identified as high-frequency components, medium-frequency components, and low-frequency components. The medium-frequency component represents the relatively ideal state in the sharpening motion. In this state, the contact force between the grinding wheel and the edge is relatively stable.

[0048] The overclocking component is mainly used to indicate that the contact force between the grinding wheel and the cutting edge is high or there is obvious fluctuation. The specific principle may be due to the structural problems of the grinding wheel itself or the structural problems of the workpiece body 8, which leads to a larger grinding amplitude between the grinding wheel and the workpiece body 8 and increases the vibration frequency.

[0049] The low-frequency component indicates that the contact force between the grinding wheel and the cutting edge is relatively small, resulting in a smaller grinding range between them. The principle may be that there is a quality problem at the cutting edge in the workpiece body 8 or that the grinding wheel has significant wear.

[0050] In the specific interactive analysis action, since the mid-frequency component is in the best ideal state, the sharpness of the workpiece body 8 corresponding to the mid-frequency component is not adjusted. Specifically, it is necessary to mark the over-frequency component and the low-frequency component and enter the multi-set interactive control unit.

[0051] In the multi-unit interactive control unit, the workpiece body in the medium frequency component is not adjusted, while the workpiece body 8 in the low frequency component may be difficult to adjust due to its own quality problems (insufficient cutting edge). Therefore, only the workpiece body 8 in this part is marked but not adjusted. The focus is on the overclocking component. First, the vibration frequency HZn in the overclocking component is obtained. When the sharpening action component 6 performs continuous sharpening, the vibration frequency HZn between the occurrence of the overclocking problem does not have an overclocking problem. Therefore, the problem of the grinding wheel itself can be disregarded.

[0052] The main feedback is that there is a quality problem at the local cutting edge position of the workpiece body 8. To address this, a pressing action is performed. The pressing action is specifically controlled by the current values ​​Is and Ix. The purpose is to change the tilt angle of the workpiece body 8 at the corresponding position. To avoid the grinding wheel from over-grinding the cutting edge, the key function of this pressing action is to ensure that the workpiece body 8 rotates clockwise and prevents the cutting edge from getting too close to the grinding wheel.

[0053] Therefore, it is necessary to ensure that the upward lifting force Fx of the lower support 16 is slightly greater than the downward pressure Fs of the upper pressure 15. Furthermore, to ensure the stability of the workpiece body 8, both sets of cranks 14 need to be activated simultaneously. This ensures that the cutting edge of the workpiece body 8 moves slightly away from the grinding wheel, thereby gradually bringing the vibration frequency HZn closer to the vibration frequency HZn of the medium-frequency component. Finally, the workpiece body 8 is reset by the pressing action. Essentially, this ensures that the upward lifting force Fx of the lower support 16 is slightly less than the downward pressure Fs of the upper pressure 15, thus ensuring that the grinding amount of the grinding wheel on the workpiece body is completely consistent. It should also be noted that:

[0054] During the pressing action, the sharpening action 6 only maintains the rotation of the grinding wheel and does not move along the linear direction of the cutting edge. The purpose is to focus on the local cutting edge until the vibration frequency HZn in the workpiece body 8 is close to that of the medium frequency component. The sharpening action 6 continues to move, and the sharpening action is carried out in this way.

[0055] It should also be noted that: during the specific blade-opening action, there may be more than one overclocking component. When pressing the components, the workpiece body 8 of this part is pressed first according to the maximum value of the vibration frequency HZn in each overclocking component, and in the order from the largest to the smallest. After this part is completed, the other overclocking component is pressed.

[0056] In summary: Based on the mechanical sharpening method of scissor blades, a batch sharpening method is adopted. First, the workpiece body is fixed by direct clamping. The difference is that the ball bearings on the clamp ensure that the workpiece body has a small sliding range. The key is to use the upper pressure plate and the lower support plate to fix the tool holder position in the workpiece body by pressing up and supporting down. During actual operation, the feedback is mainly based on the vibration frequency generated by the workpiece body, specifically using three frequency components: ultra-high, medium, and low. This method directly obtains the grinding state of the workpiece body. Secondly, the top pressure action adopted for the ultra-high frequency component uses the force difference between the upper pressure plate and the lower support plate to drive the workpiece body to move slightly. The purpose is to avoid over-grinding, which would affect the grinding quality or the quality of the grinding wheel.

[0057] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An automated blade-sharpening mechanism for scissors, comprising a base (1) and a blade-sharpening actuating component (6), characterized in that, The base (1) is provided with a clamping plate assembly corresponding to the blade-opening action component (6) and a top-pressing component corresponding to the clamping plate assembly. The clamping plate assembly consists of a clamping seat (10), a fixed slide rod (11) and a clamping plate action component (7). The top-pressing component includes an upper end sleeve (4), a lower end sleeve (2) and multiple curved rods (14) arranged from top to bottom. An upper pressure plate (15) and a lower support plate (16) are respectively installed on the curved rods (14) of the upper end sleeve (4) and the lower end sleeve (2). An integrated controller (3) and a vibration frequency detector (5) are provided on the base (1). Multiple workpiece bodies (8) are provided in the clamping assembly. Multiple vibration sensing probes (17) corresponding to the workpiece bodies (8) are provided on the vibration frequency detector (5). The integrated controller (3) controls the pressure of the upper sleeve (4), lower sleeve (2) and the blade-opening action part (6) through the vibration frequency detector (5). The workpiece body (8) is located in the middle of the clamp (10) between adjacent positions. The fixed slide rod (11) is located on the lower side of the clamp (10). The fixed slide rod (11) is slidably connected to the clamp (10) through the clamping action (7). Multiple limiting rings corresponding to the clamp (10) are installed on the fixed slide rod (11). The fixed slide rod (11) is symmetrically arranged along the width direction of the base (1). The clamp (10) is linearly and equidistantly arranged along the width direction of the base (1). Ball bearings are rotatably installed on the clamp (10). The limiting rings are staggered along the setting position of the clamp (10). The middle section of the crank rod (14) corresponding to the upper sleeve (4) and the lower sleeve (2) is rotatably connected to the base (1) in the clockwise and counterclockwise directions, respectively. The upper pressure (15) is set at the upper end of the workpiece body (8) and exerts downward pressure on the workpiece body (8). The lower support (16) is set at the lower side of the workpiece body (8) and exerts upward force on the workpiece body (8). The crank rod (14) is equipped with a permanent magnet block (12) at one end inside the upper sleeve (4) and the lower sleeve (2). The upper sleeve (4) and the lower sleeve (2) are installed on one side of the base (1), and the lower end and the upper end of the upper sleeve (4) and the lower sleeve (2) are equipped with electromagnetic groups (13) corresponding to the permanent magnet block (12).

2. The automated blade sharpening mechanism for scissors according to claim 1, characterized in that, The base (1) is provided with a plug (9) corresponding to the installation position in the workpiece body (8), and the workpiece body (8) and the plug (9) are rotatably connected.

3. The automated blade sharpening mechanism for scissors according to claim 1, characterized in that, The crank (14) is positioned to match the workpiece body (8).

4. A control system for an automated blade sharpening mechanism for scissors, applied to the automated blade sharpening mechanism for scissors as described in any one of claims 1 to 3, characterized in that, It includes a subset information collection unit, a single set motion analysis unit and a multi-set interactive control unit. In the subset information collection unit, the workpiece body (8) is numbered n according to the width direction of the base (1), and the vibration frequency HZn is obtained through the vibration probe (17). In the single-set motion analysis unit, each workpiece body (8) is divided into high-frequency part, medium-frequency part and low-frequency part according to the vibration frequency HZn. The medium-frequency part indicates that the workpiece body (8) is in a relatively ideal grinding state, the high-frequency part indicates that the workpiece body (8) has an abnormal grinding state with excessive amount, and the low-frequency part indicates that the workpiece body (8) has an abnormal grinding state with insufficient amount. The multi-unit interactive control unit does not adjust the workpiece body (8) of the medium-frequency component and the low-frequency component, and marks the value of the vibration frequency HZn in each over-frequency component. It prioritizes the over-frequency component with the maximum vibration frequency HZn in descending order until it matches the vibration frequency HZn of the medium-frequency component.

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