Automatic edging mechanism for scissor blade and control system of automatic edging mechanism

Abstract

The invention discloses an automatic edging mechanism for a scissor blade and a control system of the automatic edging mechanism, and relates to the technical field of scissor edging, a batch edging mode is adopted on the basis of a mechanical edging mode of the scissor blade, firstly, a fixing mode of a workpiece body is optimized, and the workpiece body is fixed in a direct clamping mode; the difference is that the workpiece body has small-amplitude sliding capacity due to the balls on the clamping seat, the key point is that the position of a cutter handle in the workpiece body is fixed in an upper-pressing and lower-supporting mode through an upper pressing part and a lower supporting part, and feedback is mainly carried out on the basis of the vibration frequency generated by the workpiece body in the specific operation period. Specifically, the grinding state of a workpiece body is directly obtained in this way through an ultra-frequency assembly, a medium-frequency assembly and a low-frequency assembly, and then the workpiece body is driven to move in a small range through the force difference of upper pressing and lower supporting adopted for an ultra-frequency part, so that the situation that the grinding quality or the grinding wheel quality is affected due to excessive grinding is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of scissor edge grinding, and particularly relates to an automatic edge grinding mechanism for scissor blades and its control system. Background Art

[0002] For the industrial edge grinding process of scissor blades, reference can be made to the specific content in the publication number CN114905347A. Essentially, a structure such as a grinding wheel disc contacts the edge of the blade during constant-speed rotation. Considering high production efficiency, most batch workpieces are processed in the same batch. Specifically, multiple workpieces are fixed in sequence and then edge ground one by one or synchronously. The purpose is to shorten the processing cycle without repeated loading and unloading.

[0003] During the edge grinding process, due to various factors such as slight angular deviation, vibration, and temperature, the processing quality of one or more workpieces has defects. Specifically, the local high temperature (up to 300 - 400 °C) generated by the grinding of the grinding wheel during the edge grinding process is superimposed with mechanical stress. If the cooling is not timely or the feed rate is too large, microcracks visible to the naked eye are likely to form at the edge, and even problems such as chipping and curling of the edge may directly occur. However, during the processing, it is also necessary to ensure full contact between the workpiece and the grinding wheel to obtain a fully ground edge effect. Since multiple workpieces are edge ground synchronously, how to ensure the processing quality of batch workpieces is an aspect that needs to be solved in the present invention, to avoid problems such as inconsistent processing quality, over - processing / under - processing of single / multiple workpieces. For this, the following technical solutions are proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic edge grinding mechanism for scissor blades and its control system, which is used to solve the problem of inconsistent processing quality during the batch synchronous processing of scissor blades and avoid the problem of over - processing or under - processing of workpieces.

[0005] The purpose of the present invention can be achieved by the following technical solutions: An automatic edge grinding mechanism for scissor blades includes a base and an edge grinding action member. A clip assembly corresponding to the edge grinding action member and a pressing assembly corresponding to the clip assembly are arranged on the base. The clip assembly consists of a clip seat, a fixed sliding rod, and a clip action member. The pressing assembly includes an upper sleeve, a lower sleeve, and multiple curved rods arranged from top to bottom. An upper pressing element and a lower supporting element 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 arranged on the base. Multiple workpiece bodies are arranged in the clip assembly. Multiple vibration - sensing probes corresponding to the workpiece bodies are arranged on the vibration frequency detector. The integrated controller controls the pressing of the upper sleeve, the lower sleeve, and the edge grinding action member through the vibration frequency detector.

[0007] Further set as: the workpiece body is located at the middle position of the clamp between adjacent positions, the fixed slide rod is located at the lower side position of the clamp, and the fixed slide rod is slidably connected to the clamp through the clip actuator. A plurality of limiting rings corresponding to the clamp are installed on the fixed slide rod, and the fixed slide rods are symmetrically arranged along the width direction of the base.

[0008] Further set as: the clamps are linearly and equidistantly arranged along the width direction of the base, and balls are rotatably installed on the clamps. The limiting rings are arranged staggeredly along the positions of the clamps.

[0009] Further set as: inserting rods corresponding to the installation positions in the workpiece body are arranged in the base, and the workpiece body is rotatably connected to the inserting rods.

[0010] Further set as: the middle positions of the curved rods corresponding to the upper end sleeve and the lower end sleeve are respectively rotatably connected to the base in the clockwise and counterclockwise directions. The upper presser is arranged at the upper end position of the workpiece body and generates a downward pressure on the workpiece body. The lower support is arranged at the lower side position of the workpiece body and generates an upward supporting force on the workpiece body.

[0011] Further set as: permanent magnetic blocks are installed at one end positions of the curved rods corresponding to the inside of the upper end sleeve and the lower end sleeve. The upper end sleeve and the lower end sleeve are installed at one side position of the base, and electromagnetic groups corresponding to the permanent magnetic blocks are installed at the lower inside and the upper inside positions of the upper end sleeve and the lower end sleeve.

[0012] Further set as: the arrangement position of the curved rod matches the workpiece body.

[0013] The present invention also proposes a control system for an automatic edge-opening mechanism of a pair of scissors blades, including a subset information collection unit, a single-set motion analysis unit, and a multi-set interaction control unit. In the subset information collection unit, the workpiece bodies are numbered n according to the width direction of the base, and the vibration frequency HZn is obtained through a vibration sensing probe.

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

[0015] The multi-set interaction control unit does not adjust the workpiece bodies of the medium-frequency part and the low-frequency part, marks the numerical values of the vibration frequency HZn in each over-frequency part, and preferentially performs a pressing action on the over-frequency part with the maximum vibration frequency HZn in descending order until it matches the vibration frequency HZn of the medium-frequency part.

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

[0017] 1. The present invention proposes a batch edge-opening method based on the mechanized edge-opening method of scissors blades. First, the fixing method of the associated workpiece body is optimized. Its essence is to directly fix the workpiece body using a clamp seat. However, the difference is that due to the movement ability of the balls on the clamp seat, the workpiece body has a small movement ability during the fixing process in cooperation with the insertion rod. The key is the upper pressing and lower supporting fixing method adopted by the upper presser and the lower support for the handle position of the workpiece body, aiming to cooperate with the adjustment process of the workpiece body during the grinding process.

[0018] 2. The key content of the present invention is the vibration frequency generated when the workpiece body is ground by the grinding wheel. If the grinding degree at each edge is different and affects the difference in vibration frequency, three frequency components, namely high, medium, and low, are specifically differentiated. Among them, the medium-frequency component represents a relatively ideal grinding state, while the low-frequency component reflects the problem of edge shortage. The key lies in the workpiece body of the high-frequency component. In order to avoid excessive edge damage to the grinding wheel or affecting the grinding quality, a pressing action is taken in cooperation with the fixing process of the upper pressing and lower supporting. Specifically, the workpiece body is driven to move slightly by using the force difference between the upper pressing and the lower supporting, aiming to avoid over-grinding from affecting the grinding quality or the quality of the grinding wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of an automatic edge-opening mechanism for scissors blades proposed by the present invention;

[0021] Figure 2 is Figure 1 a lateral sectional view of the base in;

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

[0023] Figure 4 is Figure 1 a schematic operation diagram of;

[0024] Figure 5 is a sectional view of the upper sleeve in the present invention;

[0025] Figure 6 is a schematic operation diagram of the control system of an automatic edge-opening mechanism for scissors blades proposed by the present invention.

[0026] In the figure: 1, base; 2, lower end sleeve; 3, integrated controller; 4, upper end sleeve; 5, vibration frequency detector; 6, edge-opening action part; 7, clip action part; 8, workpiece body; 9, insertion rod; 10, clip seat; 11, fixed slide bar; 12, permanent magnet block; 13, electromagnetic group; 14, curved rod; 15, upper pressure piece; 16, lower support piece; 17, vibration sensing probe. Specific implementation mode

[0027] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present invention.

[0028] Embodiment 1: In the batch synchronous processing of scissors blades, to solve the problem of inconsistent processing quality and avoid the problem of over-processing or under-processing of workpieces, the following technical solutions are proposed:

[0029] Refer to Figures 1 to 5 , in this embodiment, an automatic edge-opening mechanism for scissors blades includes a base 1 and an edge-opening action part 6. A clip assembly corresponding to the edge-opening action part 6 and a top pressure assembly corresponding to the clip assembly are arranged on the base 1. The clip assembly consists of a clip seat 10, a fixed slide bar 11 and a clip action part 7. The top pressure assembly includes an upper end sleeve 4, a lower end sleeve 2 and a plurality of curved rods 14 arranged from top to bottom. An upper pressure piece 15 and a lower support piece 16 are respectively installed on the curved rods 14 of the upper end sleeve 4 and the lower end sleeve 2;

[0030] An integrated controller 3 and a vibration frequency detector 5 are arranged on the base 1. A plurality of workpiece bodies 8 are arranged in the clip assembly. A plurality of vibration sensing probes 17 corresponding to the workpiece bodies 8 are arranged on the vibration frequency detector 5. The integrated controller 3 controls the top pressure of the upper end sleeve 4, the lower end sleeve 2 and the edge-opening action part 6 through the vibration frequency detector 5;

[0031] The workpiece body 8 is located at the middle position between adjacent clip seats 10. The fixed slide bar 11 is located at the lower side of the clip seat 10, and the fixed slide bar 11 is slidably connected to the clip seat 10 through the clip action part 7. A plurality of limiting rings corresponding to the clip seat 10 are installed on the fixed slide bar 11, and the fixed slide bar 11 is symmetrically arranged along the width direction of the base 1. The clip seats 10 are linearly equidistantly arranged along the width direction of the base 1, and a ball is rotatably installed on the clip seat 10. The limiting rings are arranged in a staggered manner along the position of the clip seat 10. An insertion rod 9 corresponding to the installation position of the workpiece body 8 in the base 1 is arranged, and the workpiece body 8 is rotatably connected to the insertion rod 9.

[0032] Working principle: The sharpening process of the scissors blade is described as follows: Its essence is to continuously grind the edge with a grinding wheel. Since the structures of the scissors blades are not uniform, the present invention does not mainly limit the sharpening actuator 6. A brief description of it is: After fixing multiple scissors blades, the sharpening actuator 6 mainly includes a grinding wheel and a motor group. The motor group maintains the rotation and advancement of the grinding wheel. The advancement mainly drives the rotating grinding wheel to move along the edge. This part will not be elaborated much;

[0033] What needs to be emphasized is that each clamping seat 10 is mainly used to clamp the workpiece body 8. Specifically, the fixed slide rod 11 drives the clamping seat 10 to slide, so that Figure 3 taking it as an example, the two fixed slide rods 11 are symmetrically arranged. If each clamping seat 10 is numbered 1, 2, 3... i along the width direction, then one of the fixed slide rods 11 only drives the clamping seats 10 with odd numbers to move, and the other fixed slide rod 11 can only drive the clamping seats 10 with even numbers to move;

[0034] The fixed slide rod 11 mainly drives the clamping seat 10 to move through a limiting ring. The movement process of the fixed slide rod 11 depends on the clip actuator 7. The essence of the clip actuator 7 is a push cylinder structure. This method will not be elaborated much, only used to represent the clamping method for the scissors blade. However, it should be noted that: Each clamping seat 10 is provided 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, used to cooperate with the rotation ability of the insertion rod 9 for the workpiece body 8.

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

[0036] The middle positions of the curved rods 14 corresponding to the upper end sleeve 4 and the lower end sleeve 2 are respectively rotationally connected to the base 1 in the clockwise and counterclockwise directions. The upper presser 15 is arranged at the upper end position of the workpiece body 8 and generates a downward pressure on the workpiece body 8. The lower support 16 is arranged at the lower side position of the workpiece body 8 and generates an upward supporting force on the workpiece body 8. Permanent magnets 12 are installed at one end positions of the curved rods 14 corresponding to the inside of the upper end sleeve 4 and the lower end sleeve 2. The upper end sleeve 4 and the lower end sleeve 2 are installed on one side of the base 1, and electromagnetic groups 13 corresponding to the permanent magnets 12 are installed at the lower and upper inner positions of the upper end sleeve 4 and the lower end sleeve 2. The setting position of the curved rod 14 matches the workpiece body 8.

[0037] Solution description: Combining with the technical content of Embodiment 1, it can be directly understood that although the workpiece body 8 is fixed by the clamping seat 10, it still has the ability to move essentially. Therefore, a pressing component needs to be added. First, the structure of the scissors blade is described: The inserting column 9 mainly cooperates with the installation opening position in the scissors blade. The upper pressing element 15 and the lower supporting element 16 in the pressing component are specifically arranged at the handle position of the scissors blade, and with reference to Figure 4 it is described as follows:

[0038] The upper pressing element 15 and the lower supporting element 16 are respectively arranged on the upper side and the lower side of the handle position. The upper pressing element 15 and the lower supporting element 16 respectively generate a downward pressure and an upward supporting force on the handle position. When the scissors blade 8 is fixed by the clamping seat 10 but has the ability to rotate, it can be understood that the whole scissors blade is fixed by the upper pressing element 15 and the lower supporting element 16. The key lies in the forces exerted by the upper pressing element 15 and the lower supporting element 16 on the handle, which can be simply understood as:

[0039] If the downward pressure generated by the upper pressing element 15 on the handle position is greater than the upward supporting force generated by the lower supporting element 16 on the handle position, then the workpiece body 8 at the corresponding position will rotate slightly counterclockwise with the inserting column 9 as the rotation point. Conversely, it will rotate slightly instantaneously. The key content of the present invention lies in the rotation direction and rotation angle of the curved rod 14 corresponding to the upper pressing element 15 and the lower supporting element 16, so as to control the clamping force of the upper pressing element 15 and the lower supporting element 16 on the workpiece body 8 and the inclination angle of the workpiece body 8 relative to the inserting rod 9. The purpose is to change the contact distance between the workpiece body 8 and the grinding wheel in the edge-opening workpiece 6;

[0040] The action process of each curved rod 14 mainly depends on the electromagnetic sensing principle. Taking Figure 4 as an example, a permanent magnet block 12 is installed at one end of each curved rod 14 relative to the upper end sleeve 4 and the lower end sleeve 2. In order to maintain the inclination directions of the upper and lower groups of curved rods 14, the electromagnetic group 13 in the upper end sleeve 4 is arranged below the permanent magnet block 12 to maintain the clockwise rotation direction of the upper curved rod 14. Conversely, the electromagnetic group 13 in the lower end sleeve 2 is arranged above the permanent magnet block 12 to maintain the counterclockwise rotation of the lower curved rod 14. The essence of the electromagnetic group 13 is the principle of electrified electromagnet.

[0041] Embodiment 3: Based on Embodiment 1 and Embodiment 2, the overall control system is explained and described:

[0042] Since the key content of the present invention lies in batch edge-opening, the conventional edge-opening method is determined according to empirical parameters. Its essence is that the edge-opening working piece 6 sets the traveling direction and structural angle of the grinding wheel according to the shape (inclination angle) of the edge on the workpiece body 8. Because there are many types of scissors blades, the specific structural composition of the edge-opening working piece 6 will not be described in detail in the present invention. It should be noted that:

[0043] Since the essence of edge grinding is grinding, the workpiece body 8 will definitely vibrate during the edge grinding process. In this regard, the present invention mainly uses a vibration frequency detector 5 to detect the vibration frequency of the workpiece body 8 in real time. Specifically, based on the vibration sensor probe 17, to ensure that the vibration sensor probe 17 can better detect the vibration frequency, the vibration sensor probe 17 is attached to the workpiece body 8 in a magnetic adsorption manner and is closer to the edge grinding position. As Figure 4 shown, the vibration sensor probe 17 is close to the insertion rod 9;

[0044] Refer to Figure 6 , the following control system is set for the overall edge grinding mechanism during the specific operation process:

[0045] Subset information collection unit: Each workpiece body 8 is numbered n along the width direction of the base 1, and the vibration frequency HZn in the workpiece body 8 is obtained in real time through the vibration sensor probe 17. The energization current values Is and Ix of the electromagnetic groups 13 in the upper end sleeve 4 and the lower end sleeve 2 are set, and the clamping force of the upper pressing element 15 and the lower supporting element 16 relative to the workpiece body 8 is generated in combination with the length of the curved rod 14 and the position of the rotation point relative to the base 1. A simple explanation is as follows:

[0046] The inclination angles of the upper and lower curved rods 14 are changed under the influence of Is and Ix. For example: Fs = Is * k, Fx = Ix * k, where k is a conversion coefficient for the length of the combined rod 14 and the position of the rotation point relative to the base 1. Since the length of the rod 14 and the position of the rotation point relative to the base 1 are not restricted, k in this embodiment is only regarded as a constant and will not be elaborated further;

[0047] Single set action analysis unit: Interactive analysis actions are performed based on multiple HZn in the subset information collection unit. In the most ideal edge grinding action, the grinding wheel in the edge grinding element 6 also grinds the edge in the most ideal state. Then, the vibration frequency HZn in each workpiece body 8 should be exactly equal. However, in actual situations, it is difficult to have such an ideal state specifically due to the self - mass of the workpiece body 8 and the wear degree of the grinding wheel. Therefore, in this unit, over - frequency components, medium - frequency components, and low - frequency components are identified among the obtained multiple groups of vibration frequencies HZn. The medium - frequency components represent the relatively ideal state in the edge grinding action. In this state, the contact force between the grinding wheel and the edge is relatively stable;

[0048] The over - frequency components are mainly used to represent that the contact force between the grinding wheel and the edge is relatively high or there are obvious fluctuations. The specific principle may be due to the structural problems of the grinding wheel itself or the structural problems of the workpiece body 8, resulting in a larger grinding amplitude between the grinding wheel and the workpiece body 8 and an increase in the vibration frequency;

[0049] The low-frequency component is used to indicate that the contact force between the grinding wheel piece and the edge is relatively small, resulting in a relatively small grinding amplitude between the two. The possible principle is that there are quality problems in the edge of the workpiece body 8 itself or the grinding wheel piece has significant wear;

[0050] In the specific interaction analysis action, since the intermediate-frequency component is the best ideal state, the edge opening of the workpiece body 8 corresponding to the intermediate-frequency component is not adjusted. Specifically, the over-frequency component and the low-frequency component need to be marked and then enter the multi-set interaction control unit;

[0051] In the multi-set interaction control unit, the workpiece body in the intermediate-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 (edge deficiency). Therefore, only this part of the workpiece body 8 is marked but not adjusted. The focus is on the over-frequency component. First, obtain the vibration frequency HZn in the over-frequency component. When the edge-opening workpiece 6 continuously performs edge opening, and there is no over-frequency problem in the vibration frequency HZn before the over-frequency problem occurs, then the problem of the grinding wheel piece itself can be not considered;

[0052] It mainly feedbacks that there are quality problems in the local edge position of the workpiece body 8, and a pressing action is performed accordingly. The pressing action specifically controls the energizing current values Is and Ix. Its purpose is to change the inclination angle of the workpiece body 8 at the corresponding position. To avoid excessive grinding of the edge by the grinding wheel piece, the key role of this pressing action is to ensure that the workpiece body 8 rotates in the clockwise direction and avoid the edge getting too close to the grinding wheel piece;

[0053] Then it is necessary to ensure that the upward supporting force Fx of the lower support 16 is slightly greater than the downward pressing force Fs of the upper press 15. And to ensure the stability of the workpiece body 8, it is necessary to ensure that the upper and lower groups of curved rods 14 are started simultaneously, so that the edge position of the workpiece body 8 is slightly away from the grinding wheel piece, thereby ensuring that the vibration frequency HZn slowly approaches the vibration frequency HZn in the intermediate-frequency component. Finally, the pressing action is used again to drive the workpiece assembly 8 at this place to reset. Essentially, it is to ensure that the upward supporting force Fx of the lower support 16 is slightly less than the downward pressing force Fs of the upper press 15, so as to ensure that the grinding amount of the grinding wheel piece on the workpiece body is exactly the same. And it should be noted that:

[0054] When performing the pressing action, the edge-opening action part 6 only maintains the rotation action of the grinding wheel piece and will not move along the linear direction of the edge. Its purpose is to only focus on processing the local edge until the vibration frequency HZn in the workpiece body 8 completely approaches the intermediate-frequency component, and then the edge-opening action part 6 continues to move, and the edge-opening action is continuously performed in this way;

[0055] It should also be noted that: in the specific edge-opening operation, there may be more than one overclocking component. Then, when performing the pressing component, according to the maximum value in the vibration frequency HZn of each overclocking component, and in the order from large to small, the pressing action is preferentially performed on the workpiece body 8 of this part. After completing this part, the pressing action is performed on another overclocking component.

[0056] To sum up: based on the mechanical edge-opening method of the scissors blade and adopting the batch edge-opening method, first, the fixing method of the workpiece body is optimized, and it is fixed by direct clamping. The difference is that: due to the balls on the clamp seat, the workpiece body is ensured to have the ability of small-amplitude sliding. The key is to use the upper presser and the lower support to fix the handle position in the workpiece body by pressing from above and supporting from below. During the specific operation, it is mainly based on the vibration frequency generated by the workpiece body for feedback. Specifically, there are three frequency components of high, medium, and low. In this way, the grinding state of the workpiece body can be directly obtained. Secondly, the pressing action taken for the overclocking component, specifically using the force difference between pressing from above and supporting from below to drive the workpiece body to move in a small amplitude, the purpose is to avoid excessive grinding affecting the grinding quality or the quality of the grinding wheel.

[0057] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments 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 by this claim book, they should fall within the protection scope of the present invention.

Claims

1. An automatic blade sharpening mechanism for scissors, comprising a base (1) and a sharpening action member (6), characterized in that, A clip assembly corresponding to the edge-opening actuator (6) and a pressing assembly corresponding to the clip assembly are provided on the base (1). The clip assembly consists of a clip seat (10), a fixed slide bar (11), and a clip actuator (7). The pressing assembly includes an upper sleeve (4), a lower sleeve (2), and a plurality of curved rods (14) arranged from top to bottom. An upper pressure element (15) and a lower support element (16) are respectively installed on the curved rods (14) of the upper sleeve (4) and the lower sleeve (2). An integrated controller (3) and a vibration frequency detector (5) are provided on the base (1). A plurality of workpiece bodies (8) are provided in the clip assembly. A plurality of vibration sensing probes (17) corresponding to the workpiece bodies (8) are provided on the vibration frequency detector (5). The integrated controller (3) controls the pressing of the upper sleeve (4), the lower sleeve (2), and the edge-opening actuator (6) through the vibration frequency detector (5).

2. The automatic edge-grinding mechanism for a pair of scissors blades according to claim 1, wherein, The workpiece body (8) is located at the middle position between adjacent clip seats (10). The fixed slide bar (11) is located at the lower side of the clip seat (10), and the fixed slide bar (11) is slidably connected to the clip seat (10) through the clip actuator (7). A plurality of limiting rings corresponding to the clip seat (10) are installed on the fixed slide bar (11), and the fixed slide bar (11) is symmetrically arranged along the width direction of the base (1).

3. The automatic edge-grinding mechanism for a pair of scissors blades according to claim 2, wherein, The clip seats (10) are linearly and equidistantly arranged along the width direction of the base (1), and balls are rotatably installed on the clip seats (10). The limiting rings are arranged alternately along the position of the clip seats (10).

4. An automatic edge-grinding mechanism for a pair of scissors blades according to claim 1, wherein, A plug rod (9) corresponding to the installation position in the workpiece body (8) is provided in the base (1). The workpiece body (8) is rotatably connected to the plug rod (9).

5. The automatic edge-grinding mechanism for a pair of scissors blades according to claim 1, wherein, The middle positions of the curved rods (14) corresponding to the upper sleeve (4) and the lower sleeve (2) are respectively rotatably connected to the base (1) in the clockwise and counterclockwise directions. The upper pressure element (15) is arranged at the upper end of the workpiece body (8) and generates a downward pressure on the workpiece body (8). The lower support element (16) is arranged at the lower side of the workpiece body (8) and generates an upward supporting force on the workpiece body (8).

6. The automated blade sharpening mechanism for scissors blades according to claim 5, characterized in that, Permanent magnets (12) are installed at one end position of the curved rods (14) corresponding to the inside of 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 electromagnetic groups (13) corresponding to the permanent magnets (12) are installed at the lower end and the upper end positions inside the upper sleeve (4) and the lower sleeve (2).

7. An automatic blade sharpening mechanism for scissors blades according to claim 6, characterized in that, The arrangement position of the curved rod (14) matches the workpiece body (8).

8. A control system for an automatic edge grinding mechanism of a pair of scissors blades, which is applied to an automatic edge grinding mechanism of a pair of scissors blades according to any one of claims 1 to 7, characterized in that, It includes a subset information collection unit, a single set action analysis unit, and a multi-set interaction control unit. In the subset information collection unit, the workpiece bodies (8) are numbered as n according to the width direction of the base (1), and the vibration frequency HZn is obtained through the vibration sensing probe (17). In the single-set motion analysis unit, each workpiece body (8) is classified into an over-frequency part, a medium-frequency part, and a 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 over-frequency part indicates that there is an excessive abnormal grinding state in the workpiece body (8). The low-frequency part indicates that there is a lack of abnormal grinding state in the workpiece body (8). The multi-set interaction control unit does not adjust the workpiece bodies (8) of the medium-frequency parts and the low-frequency parts, marks the numerical value of the vibration frequency HZn in each over-frequency part, and preferentially performs a pressing action on the over-frequency part with the maximum vibration frequency HZn in descending order until it matches the vibration frequency HZn of the medium-frequency part.

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