A fish hook blank sharpening machine

Abstract

The present application relates to the field of fish hook grinding processing, and discloses a fish hook blank sharpening machine, which comprises a rack, a feeding plate, an intermittent feeding mechanism and a bending forming mechanism arranged on the rack, a grinding assembly arranged on the rack and before the bending forming mechanism, the grinding assembly being fixedly connected with a guide rail capable of sliding forward and backward relative to the rack, and the grinding assembly comprising a base fixedly connected with the guide rail, a swing motor fixedly installed on the base and a polishing motor movably installed on the base. Through cooperation between the main shaft, the swing motor and the adjusting unit, the blank is fixed on the feeding plate, the grinding head is driven to rotate and make conical swing around the blank, the jumping problem caused by rotation of the blank in traditional grinding can be avoided, the end of the blank can be sharpened at one time, the forming precision is high, the taper surface consistency is good, and the finished product quality of the blank sharpening is improved.

Description

Technical Field

[0001] This invention relates to the field of fishhook grinding and processing technology, and in particular to a fishhook blank sharpening machine. Background Technology

[0002] Grinding the tip of the fishhook is the core process in fishhook production. Currently, mass production lines generally use double-length cutting to obtain blanks. Then, the two ends of the blanks are ground by a grinding component. The ground blanks are then cut into two sections by a cutting component. The grinding single-section blanks are then continuously fed by a vibratory feeder mechanism. Finally, the tip cutting, flattening, and bending processes are completed in sequence.

[0003] In the grinding of both ends of the blank, the blank is usually placed in a disc jig with several grooves. The disc jig rotates and moves several blanks. During the movement, several blanks come into contact with the rotating grinding wheel in turn to complete the grinding of the ends. After both ends are ground, they are cut into single blanks of the same length.

[0004] However, in the above scheme, the blank comes into contact with the rotating grinding wheel in sequence. The contact effect and contact orientation between the blank and the grinding wheel are relatively fixed, which makes it impossible to guarantee the grinding quality of the grinding wheel on the blank. In addition, the traditional method of grinding both ends of the blank with double the length and then cutting it requires an additional cutting mechanism after grinding, as well as an additional positioning mechanism for the blank. This results in a redundant and complex production line structure, affecting the overall processing efficiency of the blank and causing a waste of production costs.

[0005] Therefore, it is necessary to provide a fishhook blank sharpening machine to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a fishhook blank sharpening machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a fishhook blank sharpening machine is designed that can directly cut the blank into single blanks for grinding, and can perform 360-degree conical swing grinding along the end of the blank during grinding, and can be directly conveyed for bending and shaping after grinding.

[0008] Based on the above ideas, the present invention provides the following technical solution: a fishhook blank grinding machine, including a frame, a feeding plate, an intermittent feeding mechanism and a bending forming mechanism are arranged on the frame, and a grinding assembly is arranged on the frame and adjacent to the bending forming mechanism. The grinding assembly is fixedly connected to a guide rail that can slide back and forth relative to the frame. The grinding assembly includes a base fixedly connected to the guide rail, a swing motor fixedly mounted on the base and a grinding motor movably mounted on the base. The output shaft of the swing motor is driven by a main shaft. An adjustment unit is arranged between the main shaft and the grinding motor. A grinding head is fixedly mounted on the output shaft of the grinding motor. When the swing motor and the grinding motor are started, the swing motor drives the grinding head to perform a 360-degree conical swing grinding around the end of the blank through the main shaft, the adjustment unit and the grinding motor.

[0009] As a further embodiment of the present invention: the swing motor is located near the top of the base, and the output shaft of the swing motor is connected to the main shaft by a belt drive. The main shaft is rotatably mounted on the base by a partition.

[0010] As a further embodiment of the present invention: the adjustment unit includes a side plate fixedly installed at the end of the spindle and a ball seat fixedly installed on the base. A ball is rotatably installed inside the ball seat. A second connecting rod is fixedly installed between the ball and the grinding motor. A screw is rotatably installed inside the side plate. A slider that slides with the side plate is threaded on the outer surface of the screw. A first connecting rod is rotatably installed between the slider and the ball.

[0011] As a further aspect of the present invention: a groove is provided inside the ball seat and on the side near the grinding motor, the groove is adapted to the ball, an opening is provided on the side of the ball seat near the grinding motor, and a clearance groove for avoiding the second connecting rod is provided between the ball seat and the base.

[0012] As a further aspect of the present invention: when the screw rotates, it drives the slider to move along the axial direction of the screw, and the range of rotation of the ball driven by the slider through the first connecting rod can be adjusted.

[0013] As a further aspect of the present invention: the grinding motor is fixedly mounted on the bracket, the bracket and the base are movably fitted together, and a spring is fixedly mounted on the bracket based on the movable mounting part of the base.

[0014] As a further aspect of the present invention: a gap is provided between the sphere and the groove, and a plurality of balls are movably installed on the outer surface of the sphere, with the balls movably fitting into the groove.

[0015] As a further aspect of the present invention: a round edge is fixedly installed at the groove corresponding to the ball seat, and the round edge is movably fitted to the outer surface of the ball.

[0016] As a further embodiment of the present invention: a baffle is movably installed inside the base corresponding to the clearance groove, the first connecting rod is cylindrical and sleeved inside the baffle, a rubber sleeve sleeved on the outer surface of the first connecting rod is fixedly installed inside the baffle, and the base has space for the baffle to move.

[0017] As a further aspect of the present invention: the frame is provided with a liftable pressure plate that corresponds to the position of the feeding plate. When the intermittent feeding mechanism conveys the blank along the feeding plate, the pressure plate rises. When the grinding head grinds the blank, the pressure plate descends to limit the blank.

[0018] Compared with existing technologies, the advantages of this invention are as follows: Through the cooperation of the spindle, oscillating motor, and adjustment unit, the blank is fixed on the feeding plate, driving the grinding head to rotate and oscillate conically around the blank. This avoids the jumping problem caused by blank rotation in traditional grinding, and allows for the one-time completion of blank end grinding, resulting in high forming accuracy and good conical surface consistency, thus improving the quality of the finished blank. Furthermore, by increasing the left and right arrangement of the grinding components, three-stage progressive continuous grinding of rough grinding, fine grinding, and polishing can be achieved, effectively improving the flexibility of the grinding process, adapting to multi-dimensional processing needs, and having stronger compatibility.

[0019] By arranging the grinding components adjacent to the bending forming mechanism and placing them before the bending forming mechanism, a processing technology is formed that involves single-length cutting, blank grinding, and direct bending forming. Compared with the traditional processing method of cutting twice the length, this directly eliminates one cutting process, reduces one set of cutting mechanisms, and reduces the number of times the blank is positioned, greatly simplifies the production line structure, shortens the processing cycle of a single fishhook, and significantly improves overall production efficiency. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the frame and feeding plate structure of the present invention; Figure 3 This is a schematic diagram of the grinding assembly and guide rail structure of the present invention; Figure 4 This is a schematic diagram of the base and main shaft structure of the present invention; Figure 5 This is a schematic diagram of the sphere and sphere seat structure of the present invention; Figure 6 This is a schematic diagram of the base and baffle structure of the present invention; Figure 7 This is a schematic diagram of the sphere and ball bearing structure of the present invention; Figure 8 This is a schematic diagram of the groove and rounded edge structure of the present invention; Figure 9This is a schematic diagram of the ball seat and compression assembly structure of the present invention; Figure 10 This is a schematic diagram of the airbag and groove structure of the present invention.

[0021] In the diagram: 1. Frame; 2. Feeding plate; 3. Intermittent feeding mechanism; 4. Guide rail; 5. Grinding assembly; 6. Cam mechanism; 7. Cutting mechanism; 8. Bending and forming mechanism; 9. Baffle; 10. Ball bearing; 11. Rounded edge; 12. Compression assembly; 501. Base; 502. Swing motor; 503. Spindle; 504. Grinding motor; 505. Grinding head; 506. Support; 507. Partition. 508. Belt drive; 509. Adjustment unit; 5091. Ball seat; 5092. Side plate; 5093. Screw; 5094. Slider; 5095. Ball; 5096. Groove; 5097. First connecting rod; 5098. Second connecting rod; 5099. Clearance groove; 601. Fitting rod; 602. Crossbar; 1201. Airbag; 1202. Pipe; 1203. One-way air inlet. Detailed Implementation Example

[0022] Please see Figures 1 to 8 This invention provides a fishhook blank grinding machine that, breaking with industry norms regarding processing techniques, effectively improves the grinding effect by performing a 360-degree conical oscillation grinding around the end of the blank. The grinding machine includes a frame 1, on which a feeding plate 2 for placing the blank and an intermittent feeding mechanism 3 for conveying the blank are mounted. A grinding assembly 5, corresponding to the position of the feeding plate 2, is located in front of the frame 1. The grinding assembly 5 can perform a 360-degree conical oscillation on the blank on the feeding plate 2, thereby effectively improving the grinding effect on the end of the blank.

[0023] Among them, such as Figure 1 As shown, a cutting mechanism 7 for making blanks is provided on the right side of the frame 1. After the metal wire is cut by the cutting mechanism 7, a blank of a single fishhook length is obtained directly. The cutting mechanism 7 is located in front of the station of the grinding component 5. That is, the blank obtained by cutting can be intermittently fed to the grinding component 5 on the feeding plate 2 by the intermittent feeding mechanism 3 for sharpening. Of course, in the middle stroke of the blank from the cutting mechanism 7 to the grinding component 5, processes such as upsetting and sharpening can also be added. This embodiment mainly focuses on the sharpening of the end of the blank, so the above process is not elaborated, which is also an existing mature technology.

[0024] Correspondingly, such as Figure 1As shown, a bending forming mechanism 8 for fishhook forming is provided on the lower left of the frame 1. After the blank is sharpened at the end by the grinding assembly 5, the intermittent feeding mechanism 3 pushes the sharpened blank directly to the bending forming mechanism 8, where the fishhook is formed. The formed fishhook can also be pushed out by the intermittent feeding mechanism 3. It can be understood that the grinding assembly 5 is located between the cutting mechanism 7 and the bending forming mechanism 8. In this embodiment, by first cutting the blank to obtain a single fishhook length, then sharpening the end of the single-length blank, and then bending the sharpened blank, compared with the traditional processing method of cutting the blank to double the length, one cutting step can be saved, and one set of cutting mechanism 7 can be reduced, thereby simplifying the production line structure, effectively improving processing efficiency and saving operating costs.

[0025] It should be noted that in this embodiment, the cutting mechanism 7 cuts the metal wire to obtain the blank, the intermittent feeding mechanism 3 conveys the blank on the feeding plate 2, and the bending and forming mechanism 8 forms the sharpened blank. These are all existing mature technologies and will not be described in detail here. This embodiment does not improve the specific components of the above mechanisms, but optimizes the processing efficiency of the fishhook through process adjustment.

[0026] Furthermore, such as Figure 2 As shown, a guide rail 4 is fixedly installed below the grinding assembly 5 and slides back and forth with the frame 1. The grinding assembly 5 moves back and forth based on the frame 1 through the guide rail 4. When moving forward and retracting, the intermittent feeding mechanism 3 can convey the blank along the feeding plate 2 so that the blank corresponds to the grinding assembly 5. Then the guide rail 4 can drive the grinding assembly 5 to reset backward and grind the end of the blank to a point.

[0027] Among them, such as Figures 1 to 3 As shown, a cam mechanism 6 for driving the guide rail 4 to move back and forth is provided on the frame 1. The cam mechanism 6 includes a cam spindle 503 located at the rear of the frame 1 and a contact rod 601 that is movably engaged with the cam spindle 503. The contact rod 601 is slidably mounted on the frame 1, and a crossbar 602 that engages with the guide rail 4 is fixedly mounted on the bottom of the contact rod 601 by bolts. When the cam spindle 503 rotates, the crossbar 602 can be driven to move back and forth through the contact rod 601, which in turn drives the grinding assembly 5 to move back and forth through the guide rail 4. The position of the crossbar 602 based on the contact rod 601 can be adjusted by bolts, thereby adjusting the back and forth movement distance of the grinding assembly 5 driven by the guide rail 4.

[0028] In the above structure, the cam mechanism 6 can also serve as the power source for the cutting mechanism 7, the intermittent feeding mechanism 3, and the bending and forming mechanism 8 in practical applications, thereby increasing the overall structural linkage. This is also an existing mature technology and will not be described in detail here. Of course, the cam mechanism 6 driving the guide rail 4 can also be replaced with existing cylinders or electric push rods, as long as the guide rail 4 can drive the grinding assembly 5 to move back and forth.

[0029] Correspondingly, such as Figure 3 and Figure 4 As shown, the grinding assembly 5 can be divided into three identical parts along the left and right direction. The design of the three parts can correspond to the three-stage progressive grinding of rough grinding, fine grinding and polishing, or only one part can be activated to perform a one-time grinding of the blank. In this embodiment, only the left side is activated for detailed description. Specifically, the grinding assembly 5 includes a base 501 fixedly connected to the guide rail 4, a swing motor 502 fixedly mounted on the base 501, and a grinding motor 504 movably mounted on the base 501. The output shaft of the swing motor 502 is driven by a main shaft 503. An adjustment unit 509 is provided between the main shaft 503 and the grinding motor 504, so that the grinding motor 504 is driven by the swing motor 502 through the main shaft 503 and the adjustment unit 509. The output shaft of the grinding motor 504 is fixedly mounted with a grinding head 505. When the swing motor 502 and the grinding motor 504 are activated, the swing motor 502 can drive the grinding motor 504 and the grinding head 505 to achieve 360-degree conical swing grinding. At this time, the blank is fixed on the feeding plate 2 and does not move. The grinding head 505 swings 360 degrees around the blank axis, which can achieve end sharpening in one go. There is no blank jumping during the grinding process, resulting in a better sharpening effect.

[0030] Furthermore, a liftable pressure plate (not shown in the figure) corresponding to the position of the feeding plate 2 can be provided on the frame 1. When the pressure plate rises, it does not interfere with the intermittent feeding mechanism 3's conveying of the blank along the feeding plate 2. After the pressure plate falls, it can press the blank on the feeding plate 2, which is beneficial to the grinding and cutting of the blank. Its liftable design can be realized by a known cylinder, electric push rod, or cam mechanism 6.

[0031] Reference Figure 4 In this embodiment, preferably, the swing motor 502 is located near the top of the base 501, and the output shaft of the swing motor 502 is connected to the main shaft 503 by a belt drive 508. The main shaft 503 is rotatably mounted on the base 501 through a partition 507. This design can effectively reduce the front and rear space occupied by the overall machine. Of course, the output shaft of the swing motor 502 can also be directly fixedly connected to the main shaft 503. In this way, the main shaft 503 can be directly driven to rotate by the fixed swing motor 502, which can save the cost and installation of the partition 507.

[0032] Reference Figure 4 and Figure 5 In this embodiment, preferably, the adjustment unit 509 includes a side plate 5092 fixedly installed at the end of the spindle 503 and a ball seat 5091 fixedly installed on the base 501. A ball 5095 is rotatably mounted inside the ball seat 5091. A second connecting rod 5098 is fixedly mounted between the ball 5095 and the grinding motor 504. A screw 5093 is rotatably mounted inside the side plate 5092. A slider 5094 that slides with the side plate 5092 is threaded on the outer surface of the screw 5093. A first connecting rod 5097 is rotatably mounted between the slider 5094 and the ball 5095. When the spindle 503 rotates, the ball 5095 can be driven to make a 360-degree conical swing based on the ball seat 5091 through the side plate 5092, the slider 5094, and the first connecting rod 5097. The ball 5095 can then drive the grinding motor 504 and the grinding head 505 to rotate synchronously through the second connecting rod 5098.

[0033] Furthermore, such as Figure 5 As shown, a groove 5096 is provided inside the ball seat 5091 and on the side near the grinding motor 504. The groove 5096 is adapted to the ball 5095, and the side of the ball seat 5091 near the grinding motor 504 has a large opening, allowing the ball 5095 to drive the second connecting rod 5098 to have a conical swing space. A clearance groove 5099 is provided between the ball seat 5091 and the base 501. The first connecting rod 5097 is located in the clearance groove 5099. When the slider 5094 drives the first connecting rod 5097 to move, there is no interference between the first connecting rod 5097 and the ball seat 5091 and the base 501 through the clearance groove 5099.

[0034] In the above structure, the rotation of the screw 5093 drives the slider 5094 to move based on the side plate 5092, thereby adjusting the position of the rotation base point of the slider 5094 and the first connecting rod 5097. This changes the swing range of the first connecting rod 5097, the ball 5095, and the second connecting rod 5098, thereby adjusting the grinding shape of the grinding head 505 on the end of the blank. This can adapt to different taper ratios required for grinding different fish hooks. The overall adjustment is simple, which greatly shortens the debugging time.

[0035] It should be noted that, as Figure 5 As shown, the first link 5097 rotates clockwise or counterclockwise based on the rotation of the slider 5094 and the rotation of the first link 5097 based on the ball 5095, respectively. Figure 5 The arrow in the middle is deflected circumferentially instead of along the front and back direction of the first link 5097, so that when the slider 5094 drives the first link 5097 to rotate around the main shaft 503, the first link 5097 can drive the ball 5095 to achieve conical oscillation.

[0036] It should also be noted that the grinding motor 504 is movably mounted on the base 501, allowing it to move in multiple directions along the base 501. This enables the ball 5095 to drive the conical oscillation of the grinding motor 504 and the grinding head 505 via the second connecting rod 5098. Specifically, the grinding motor 504 can be fixedly mounted on the bracket 506, which is movably fitted with the base 501. A spring (not shown in the figure) can also be added to the bracket 506 at the movable mounting point of the base 501 to improve the support effect of the base 501 on the grinding motor 504 and to help ensure the positional stability of the grinding motor 504.

[0037] Reference Figure 5 and Figure 6 In this embodiment, preferably, a gap is provided between the ball 5095 and the groove 5096, and a plurality of balls 10 are movably installed on the outer surface of the ball 5095. The plurality of movable balls 10 contact the groove 5096. At this time, the sliding friction between the ball 5095 and the groove 5096 is converted into rolling friction between the balls 10 and the groove 5096, which effectively reduces the impact of the wear of the ball 5095 on the range of conical oscillation of the grinding head 505. It can effectively adapt to the multi-turn rotation grinding requirements of a single blank and the processing requirements of a large batch of blanks.

[0038] Furthermore, a rounded edge 11 is fixedly installed at the groove 5096 corresponding to the ball seat 5091. The rounded edge 11 is in contact with the outer surface of the ball 5095, which can effectively seal the groove 5096. The ball 10 is positioned so that it will not interfere with the rounded edge 11 when it rotates with the ball 5095. This can prevent waste from entering the groove 5096 during long-term processing of the blank and affecting the range of conical oscillation of the grinding head 505.

[0039] Furthermore, a baffle 9 is movably installed inside the base 501 corresponding to the clearance groove 5099. The first connecting rod 5097 can be cylindrical and sleeved inside the baffle 9. A rubber sleeve sleeved on the outer surface of the first connecting rod 5097 is fixedly installed inside the baffle 9. At this time, the first connecting rod 5097 can drive the baffle 9 to shift in multiple directions within the base 501 as the slider 5094 rotates. The base 501 has space for the baffle 9 to move. At this time, the baffle 9 will not interfere with the movement of the first connecting rod 5097 and can prevent waste from entering the groove 5096 from the clearance groove 5099, which can further ensure the conical swing range of the grinding head 505.

[0040] In use, the metal wire is cut into single-length blanks by the cutting mechanism 7. The blanks are then conveyed along the feeding plate 2 towards the grinding head 505 by the intermittent feeding mechanism 3. At this time, the guide rail 4 is driven forward by the cam mechanism 6 to avoid obstruction, allowing the blanks to move to correspond with the front and rear of the grinding head 505. Then, the intermittent feeding mechanism 3 moves away, and the cam mechanism 6 drives the guide rail 4 and the grinding head 505 to move backward towards the blanks. During this process, the swing motor 502 and the grinding motor 504 are started, driving the ball 5095 to perform a 360-degree conical swing through the main shaft 503, side plate 5092, slider 5094, and first connecting rod 5097. The ball 5095 drives the grinding head 505 to move synchronously through the second connecting rod 5098. The grinding head 505 rotates and swings around the blank in a conical shape to complete the end sharpening.

[0041] In summary, through the cooperation of the spindle 503, slider 5094, ball 5095, and ball seat 5091, the blank is fixed on the feeding plate 2, driving the grinding head 505 to rotate and perform a 360-degree conical oscillation around the blank. This avoids the jumping problem caused by blank rotation in traditional grinding, and allows for the one-time completion of blank end grinding, resulting in high forming accuracy and good conical surface consistency, thus improving the quality of the finished blank. Furthermore, by increasing the left and right arrangement of the grinding components 5, three-stage progressive continuous grinding of rough grinding, fine grinding, and polishing can be achieved, effectively improving the flexibility of the grinding process, adapting to multi-dimensional processing needs, and having stronger compatibility.

[0042] By placing the grinding component 5 after the cutting mechanism 7 and in front of the bending and forming mechanism 8, a single-length fixed-length cutting, blank grinding, and direct bending and forming process is formed. Compared with the traditional double-length cutting process, one cutting process is directly eliminated, one set of cutting mechanism 7 can be reduced, and the number of times the blank is positioned is also reduced, which greatly simplifies the production line structure, shortens the processing cycle of a single fishhook, and significantly improves the overall production efficiency.

[0043] Through the cooperation of the slider 5094, screw 5093, side plate 5092 and ball 5095, the slider 5094 can be moved along the screw 5093 to adjust the position of the first connecting rod 5097, which can conveniently adjust the conical swing range of the grinding head 505, thereby flexibly changing the grinding taper ratio of the blank end. It can quickly adapt to the grinding needs of different specifications and models of fish hooks without disassembling the core structure. The overall operation is simple and the debugging is easy, which greatly shortens the changeover and debugging time, saves time and reduces the burden.

[0044] Through the cooperation of the ball 5095, the ball 10, the round edge 11 and the baffle 9, the sliding friction of the ball 5095 is transformed into the rolling friction of the ball 10, which greatly reduces the wear of the mating surface of the ball 5095. This effectively avoids the impact of the wear of the ball 5095 on the oscillation accuracy of the grinding head 505 during long-term operation. In addition, the anti-chip sealing design on both sides of the ball seat 5091 ensures long-term operating accuracy and guarantees the long-term stability of the conical oscillation of the grinding head 505, making it more practical overall. Example

[0045] Please see Figures 1 to 10 Based on Embodiment 1, in order to further ensure the conical swing range of the grinding head 505, the ball seat 5091 is improved: at this time, a compression component 12 extending into the groove 5096 is provided between the ball seat 5091 and the circular edge 11, so that the compression component 12 can overlap with the ball 10. Then, when the ball 5095 drives the ball 10 to rotate, several balls 10 can contact the compression component 12, so that the compression component 12 blows air from the circular edge 11. The gas can directly correspond to the outer surface of the ball 5095 exposed from the ball seat 5091, which can further reduce the impact of a large amount of waste generated during the grinding process.

[0046] Reference Figure 9 and Figure 10 In this embodiment, preferably, the compression assembly 12 includes an airbag 1201 fixedly mounted on the ball seat 5091 and extending into the groove 5096. The airbag 1201 is elastic and can deform and release air after being squeezed by the ball 10. The surface of the airbag 1201 is connected to a pipe 1202 fixedly arranged along the ball seat 5091, and a one-way air outlet (not shown in the figure) is fixedly installed on the surface of the pipe 1202 away from the airbag 1201. The one-way air outlet is correspondingly arranged on the circular edge 11 and can be arranged in an array along the circumferential direction of the circular edge 11. After the airbag 1201 is squeezed by the ball 10, it can continuously blow air onto the outer surface of the ball seat 5095 exposed by the circular edge 11.

[0047] The surface of the airbag 1201 is also fixedly connected to a one-way air inlet 1203. After the ball 10 leaves the airbag 1201, the airbag 1201 can automatically reset and draw air through the one-way air inlet 1203. The position of the one-way air inlet 1203 can be freely adjusted to reduce the impact of waste, such as setting it on the side of the baffle 9 away from the ball 5095.

[0048] Furthermore, the number of one-way air outlets can be increased to improve the air blowing functionality. For example, the gas can be directed to the corresponding position of the grinding head 505, so that the grinding head 505 receives continuous air blowing while rotating and making a 360-degree conical oscillation. This ensures a sharpening effect on the end of the blank and also reduces the temperature of the blank end during grinding, which helps to ensure reliable grinding quality of the blank. In the above structure, the one-way setting of the one-way air inlet 1203 and the one-way air outlet can be achieved by one-way valves, which are existing mature technologies and will not be described in detail here.

[0049] In use, the main shaft 503, slider 5094, ball 5095, and first connecting rod 5097 drive the grinding head 505 to rotate and make a 360-degree conical swing around the end of the blank. The working process and effect of this part are the same as in Embodiment 1, and will not be repeated here. The difference is that when the ball 5095 rotates and drives several balls 10 to move, the balls 10 contact the air bladder 1201 extending into the groove 5096 and cause the air bladder 1201 to continuously exhaust gas. The gas can blow away the outer surface of the ball 5095 exposed on the ball seat 5091, and can also blow away the grinding area between the grinding head 505 and the blank.

[0050] Compared to Embodiment 1, through the cooperation of structures such as the ball bearing 10, airbag 1201, ball seat 5091, and groove 5096, the ball bearing 10 rotates with the ball 5095 to achieve cyclic compression of the airbag 1201, realizing automatic exhaust that starts and stops synchronously with the grinding operation. It can continuously blow away the exposed surface of the ball 5095 and the mating gap of the ball seat 5091, further preventing grinding chips from approaching and entering the core mating areas such as the groove 5096 and the clearance groove 5099, forming a dual chip prevention system of front active blowing barrier and rear passive sealing protection, ensuring the conical swing range of the grinding head 505.

[0051] By adjusting the installation position of the one-way air outlet, the airflow is directly directed to the grinding area between the grinding head 505 and the blank, thereby removing metal shavings generated during the grinding process in real time. This avoids problems such as scratches on the conical surface of the blank, excessive roughness, and uneven abrasive wear caused by the grinding head 505 carrying shavings, and further improves the grinding quality of the blank.

[0052] Furthermore, the airflow blowing towards the grinding area can also achieve corresponding cooling of the grinding area, effectively avoiding problems such as thermal deformation of the blank caused by high grinding temperature, while reducing the wear caused by overheating of the 505 grinding head, improving the overall long-term processing stability, and also helping to improve the grinding quality of the blank, thus making the overall functionality stronger.

Claims

1. A fishhook blank sharpening machine, comprising a frame, on which a feeding plate, an intermittent feeding mechanism, and a bending forming mechanism are arranged, characterized in that, A grinding assembly is provided on the frame and in front of the bending forming mechanism. The grinding assembly is fixedly connected to a guide rail that can slide back and forth relative to the frame. The grinding assembly includes a base fixedly connected to the guide rail, a swing motor fixedly mounted on the base, and a grinding motor movably mounted on the base. The output shaft of the swing motor is driven by a main shaft. An adjustment unit is provided between the main shaft and the grinding motor. The output shaft of the grinding motor is fixedly mounted with a grinding head. When the swing motor and the grinding motor are started, the swing motor drives the grinding head to perform a 360-degree conical swing grinding around the end of the blank through the main shaft, the adjustment unit, and the grinding motor.

2. The fishhook blank sharpening machine according to claim 1, characterized in that, The swing motor is located near the top of the base. The output shaft of the swing motor is connected to the main shaft by a belt drive. The main shaft is rotatably mounted on the base through a partition.

3. The fishhook blank sharpening machine according to claim 1, characterized in that, The adjustment unit includes a side plate fixedly installed at the end of the spindle and a ball seat fixedly installed on the base. A ball is rotatably installed inside the ball seat. A second connecting rod is fixedly installed between the ball and the grinding motor. A screw is rotatably installed inside the side plate. A slider that slides with the side plate is threaded on the outer surface of the screw. A first connecting rod is rotatably installed between the slider and the ball.

4. The fishhook blank sharpening machine according to claim 3, characterized in that, The ball seat has a groove inside and near the grinding motor side, which fits the ball. The ball seat has an opening on the side near the grinding motor. The ball seat and the base have a clearance groove to avoid the second connecting rod.

5. The fishhook blank sharpening machine according to claim 3, characterized in that, When the screw rotates, it drives the slider to move along the axial direction of the screw, and the range of rotation of the ball driven by the slider through the first connecting rod can be adjusted.

6. The fishhook blank sharpening machine according to claim 1, characterized in that, The grinding motor is fixedly mounted on the bracket, which is movably fitted with the base, and a spring is fixedly mounted on the bracket based on the movable mounting part of the base.

7. The fishhook blank sharpening machine according to claim 3, characterized in that, A gap is provided between the sphere and the groove, and several balls are movably installed on the outer surface of the sphere, with the balls movably fitting into the groove.

8. The fishhook blank sharpening machine according to claim 7, characterized in that, A rounded edge is fixedly installed at the groove corresponding to the ball seat, and the rounded edge is movably fitted to the outer surface of the ball.

9. The fishhook blank sharpening machine according to claim 7, characterized in that, The base has a baffle installed inside the corresponding clearance groove. The first connecting rod is cylindrical and is sleeved inside the baffle. A rubber sleeve sleeved on the outer surface of the first connecting rod is fixedly installed inside the baffle. The base has space for the baffle to move.

10. The fishhook blank sharpening machine according to any one of claims 1-9, characterized in that, The frame is equipped with a liftable pressure plate that corresponds to the position of the feeding plate. When the intermittent feeding mechanism conveys the blank along the feeding plate, the pressure plate rises. When the grinding head grinds the blank, the pressure plate descends to limit the blank.

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