A high-precision computerized knitting needle production surface polishing device

Abstract

The application relates to the technical field of knitting needle surface polishing, and discloses a high-precision computer knitting needle production surface polishing device, which comprises a polishing device shell, four supporting legs are fixedly installed at the four corners of the bottom of the outer surface of the polishing device shell, the four supporting legs are arranged in a rectangular array, a knitting needle conveying belt is arranged between the four supporting legs at the bottom of the polishing device shell, a control system device is fixedly installed at the bottom right side of the inner wall of the polishing device shell, and a control console is arranged at the front right side of the polishing device shell. The two conical columns and the cone on the device are used for fixing the knitting needle therebetween, the outer surface of the knitting needle is more closely combined with the polishing surfaces of the two conical columns and the cone, the outer surface of the knitting needle can be completely polished, the marks caused by the fixation are prevented, the polishing efficiency of the device is increased, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of knitting needle surface polishing technology, specifically to a surface polishing device for high-precision computer knitting needle production. Background Technology

[0002] Knitting needles are a major loop-forming component on knitting machines. Made of steel wire or strip through machining, they are used to weave yarn into loops and connect these loops to form knitted fabric. The structure and shape of the knitting needles affect the loop-forming process, the productivity of the knitting machine, and the quality of the finished product, and are an important basis for knitting machine design. Commonly used knitting needles include latch needles, crochet needles, and compound needles.

[0003] Most existing knitting needle polishing machines polish the needles by fixing them in place and then polishing them with sandpaper. This can leave marks on the fixed areas, reducing product quality. In addition, they cannot polish the outer surface of the needles completely. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-precision surface polishing device for computerized knitting needle production. This device solves the problem that existing knitting needle polishing machines primarily rely on fixing the knitting needle and polishing it with sandpaper, which can easily leave marks on the fixed area, thus reducing product quality. Furthermore, it cannot achieve comprehensive polishing of the outer surface of the knitting needle.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a surface polishing device for high-precision computer knitting needle production, comprising a polishing device housing, wherein support legs are fixedly installed at the four corners of the bottom of the outer surface of the polishing device housing, the four support legs are arranged in a rectangular array, and a knitting needle conveyor belt is arranged at the bottom of the polishing device housing between the four support legs.

[0008] The control system equipment is fixedly installed on the bottom right side of the inner wall of the polishing device housing, and the control panel is set on the front right side of the polishing device housing.

[0009] The polishing device housing has a C-shaped groove for loading and unloading materials in the middle near the front end, and the control system equipment is electrically connected to the control console.

[0010] The polishing device housing has four fixed blocks fixedly installed at equal intervals on the bottom of the inner wall. The four fixed blocks are arranged in a rectangular array, and the polishing device is installed on each of the four fixed blocks.

[0011] Among them, a lifting column is fixedly installed on the inner wall of the polishing device shell near the middle of the rear end. A connecting column is fixedly installed on the end of the lifting column away from the bottom of the inner wall of the polishing device shell near the front end. A cone is fixedly installed on the end of the connecting column away from the lifting column.

[0012] Preferably, the polishing device includes a first rotating rod and a second rotating rod. The first rotating rod is rotatably mounted on the bottom end of the two left fixed blocks away from the bottom of the inner wall of the polishing device housing. The second rotating rod is rotatably mounted on the bottom end of the two right fixed blocks away from the bottom of the inner wall of the polishing device housing. A variable frequency motor is fixedly installed at the bottom of the polishing device housing, located at the position of the left rear fixed block.

[0013] Preferably, one end of the first rotating rod extends through the left rear end fixing block, and the extended end of the first rotating rod is fixedly connected to the output end of the variable frequency motor;

[0014] Among them, the first connecting plate is fixedly sleeved on the outer surface of the first rotating rod between the two fixed blocks on the left side, near the position of the variable frequency motor;

[0015] The first rotating rod is fixedly fitted with a first gear on its outer surface near the first connecting plate between the two fixed blocks on the left.

[0016] Preferably, a second gear is provided on the top outer surface of the first gear, a first rotating shaft is fixedly sleeved at the center of the second gear, the end of the first rotating shaft away from the second gear is rotatably connected to the first connecting plate, and the first gear and the second gear are meshed together.

[0017] The first rotating shaft has a third gear on its top outer surface, a third rotating rod fixedly sleeved at the center of the third gear, and a second connecting plate rotatably sleeved on the outer surface of the end of the third rotating rod away from the third gear. The end of the second connecting plate away from the third rotating rod is fixedly connected to the end of the first rotating rod away from the first connecting plate.

[0018] Preferably, the other end of the third rotating rod extends through the middle of the first connecting plate toward the rear end of the inner wall of the polishing device housing. The outer surface of the extended end of the third rotating rod is fixedly fitted with the third connecting plate. A fourth rotating shaft is rotatably installed at the center of the third connecting plate. A sixth gear is fixedly fitted on the outer surface of the end of the fourth rotating shaft away from the third connecting plate. A tapered column is fixedly fitted on the outer surface of the third rotating rod located between the second connecting plate and the first connecting plate.

[0019] The sixth gear meshes with the third gear, and the second gear meshes with the third gear.

[0020] Preferably, a third rotating shaft is rotatably sleeved on the end of the third connecting plate away from the third rotating rod, and a fourth gear is fixedly sleeved on the end of the third rotating shaft away from the third connecting plate, and the fourth gear meshes with the sixth gear.

[0021] The third rotating shaft is located between the third connecting plate and the fourth gear, and the fourth connecting plate is rotatably sleeved on its outer surface. The fourth connecting plate is rotatably sleeved on the end away from the third rotating shaft.

[0022] Preferably, one end of the fourth rotating rod is rotatably fitted with the same first connecting plate, and the end of the same first connecting plate away from the fourth rotating rod is fixedly connected to the outer surface of the second rotating rod;

[0023] The other end of the fourth rotating rod is rotatably fitted with a fifth connecting plate, and the end of the fifth connecting plate away from the fourth rotating rod is fixedly connected to the outer surface of the second rotating rod.

[0024] Preferably, the fourth rotating rod is fixedly sleeved with a fifth gear at a position close to the outer surface of the same first connecting plate, the fifth gear meshing with the fourth gear, and the outer surface of the fourth rotating rod located between the fifth gear and the fifth connecting plate is fixedly sleeved with the same conical column;

[0025] Among them, electric telescopic rods are fixedly installed on the top opposing surfaces of the two first connecting plates, and connecting blocks are vertically fixedly installed at the middle position of the end of the two electric telescopic rods away from the two first connecting plates.

[0026] Preferably, a connecting block is fixedly installed at the middle position of both connecting blocks, and a U-shaped block is rotatably installed at both ends of the two second rotating shafts. Both U-shaped blocks are fixedly connected to the inner walls of the polishing device housing near the top.

[0027] (III) Beneficial Effects

[0028] Compared with the prior art, the present invention provides a surface polishing device for high-precision computerized needle production, which has the following beneficial effects:

[0029] 1. This high-precision computerized needle production surface polishing device, during adjustment, uses an electric telescopic rod to retract or extend, causing the first connecting plate to rotate around the first rotating rod as an axis, thereby adjusting the distance between the left and right conical columns. The retraction of the electric telescopic rod causes the fourth and third connecting plates on it to move along its trajectory. The movement of the fourth and third connecting plates causes the sixth and fourth gears on them to move as well. Simultaneously, the limiting positions of the third and fourth connecting plates ensure continued engagement. The needle is placed at the top of the contact surface of the two conical columns, with the larger end of the needle facing the smaller diameter of the two conical columns. Simultaneously, the lifting column moves downward, causing the connecting column to move downward, which in turn causes the conical column to move downward. Once the conical column moves downward and the needles are in contact, the movement stops to prevent the needles from shifting. Then, the variable frequency motor is started. The output of the variable frequency motor rotates, causing the first gear to rotate. The first gear rotates counterclockwise, causing the second gear to rotate clockwise. The rotation drives the third gear to rotate counterclockwise, which in turn drives the third rotating rod to rotate counterclockwise, which in turn drives the conical column to rotate counterclockwise, which in turn drives the sixth gear to rotate clockwise, which in turn drives the fourth gear to rotate counterclockwise, which in turn drives the fifth gear to rotate clockwise, which in turn drives the fourth rotating rod to rotate clockwise, which in turn drives the same conical column to rotate clockwise. Thus, the two conical columns rotate in opposite directions, with the smaller diameter ends of the two conical columns facing the same direction. The smaller diameter end of the cone faces the opposite direction to the smaller diameter ends of the two conical columns. This polishes the outer surface of the knitting needle. The two conical columns and the cone on this device fix the knitting needle between them, ensuring a closer fit between the outer surface of the knitting needle and the polished surfaces of the two conical columns and the cone. This not only completely polishes the outer surface of the knitting needle but also prevents the fixing from leaving marks. This device not only increases the polishing efficiency but also improves product quality.

[0030] 2. The high-precision computerized needle production surface polishing device, as described above, can polish the outer surface of needles of different sizes, thereby improving the practicality of the polishing device.

[0031] 3. The surface polishing device for high-precision computerized needle production, through the setting of two electric telescopic rods as described above, effectively prevents damage to one electric telescopic rod during use. The other electric telescopic rod can be used for adjustment, ensuring that the polishing progress is not affected by machine damage during production, thereby further increasing the polishing efficiency.

[0032] 4. The surface polishing device for high-precision computer knitting needle production, after polishing as described above, activates the electric telescopic rod to separate the two conical columns, allowing the knitting needles to fall through the loading and unloading C-shaped grooves onto the upper surface of the knitting needle conveyor belt, completing the automatic unloading. The knitting needles are then conveyed to the next process via the fifth gear. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the surface polishing device for high-precision computerized needle production according to the present invention;

[0034] Figure 2 This is a schematic diagram of the surface polishing device for high-precision computerized needle production according to the present invention;

[0035] Figure 3 This is a schematic diagram of the polishing device of the present invention;

[0036] Figure 4 This is a schematic diagram of the separation structure of the polishing device of the present invention;

[0037] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A;

[0038] Figure 6 For the present invention Figure 4 A magnified structural diagram at point B in the middle.

[0039] In the diagram: 1. Polishing device housing; 2. Support leg; 3. Knitting needle conveyor belt; 4. Loading / unloading C-shaped groove; 5. Lifting column; 6. Connecting column; 7. Cone; 8. Fixing block; 9. Control system equipment; 10. Control panel; 11. First rotating rod; 12. Second rotating rod; 13. Variable frequency motor; 14. First gear; 15. First connecting plate; 16. First rotating shaft; 17. Second gear; 18. Third rotating rod; 19. Third gear; 20. Second connecting plate; 21. Conical column; 22. Electric telescopic rod; 23. Connecting block; 24. Second rotating shaft; 25. U-shaped block; 26. Third connecting plate; 27. Third rotating shaft; 28. Fourth gear; 29. ​​Fourth connecting plate; 30. Fourth rotating rod; 31. Fifth gear; 32. Fifth connecting plate; 33. Sixth gear; 34. Fourth rotating shaft. Detailed Implementation

[0040] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-6 This invention provides a new technical solution: a surface polishing device for high-precision computerized needle production, comprising a polishing device housing 1, support legs 2 fixedly installed at the four corners of the bottom of the outer surface of the polishing device housing 1, the four support legs 2 being arranged in a rectangular array, and a needle conveyor belt 3 being arranged at the bottom of the polishing device housing 1 between the four support legs 2, a control system device 9 fixedly installed on the bottom right side of the inner wall of the polishing device housing 1, and a control table 10 being arranged on the front right side of the polishing device housing 1, a loading and unloading C-shaped groove 4 being opened in the middle of the polishing device housing 1 near the front end, and the control system device 9 being electrically connected to the control table 10, four fixing blocks 8 being fixedly installed at equal intervals on the bottom of the inner wall of the polishing device housing 1, the four fixing blocks 8 being arranged in a rectangular array, and polishing devices being arranged on the four fixing blocks 8, a lifting column 5 being fixedly installed on the inner wall of the polishing device housing 1 near the middle of the rear end, a connecting column 6 being fixedly installed on the end of the lifting column 5 away from the bottom of the inner wall of the polishing device housing 1 near the front end, and a cone 7 being fixedly installed on the end of the connecting column 6 away from the lifting column 5.

[0042] Furthermore, the polishing device includes a first rotating rod 11 and a second rotating rod 12. The first rotating rod 11 is rotatably mounted on the bottom end of the two left fixed blocks 8 away from the inner wall of the polishing device housing 1. The second rotating rod 12 is rotatably mounted on the bottom end of the two right fixed blocks 8 away from the inner wall of the polishing device housing 1. A variable frequency motor 13 is fixedly mounted at the bottom of the polishing device housing 1, located at the position of the left rear fixed block 8.

[0043] Furthermore, one end of the first rotating rod 11 extends through the left rear end fixing block 8, and the extended end of the first rotating rod 11 is fixedly connected to the output end of the variable frequency motor 13. The first connecting plate 15 is fixedly sleeved on the outer surface of the first rotating rod 11 between the two fixing blocks 8 on the left side, near the position of the variable frequency motor 13. The first gear 14 is fixedly sleeved on the outer surface of the first rotating rod 11 between the two fixing blocks 8 on the left side, near the position of the first connecting plate 15.

[0044] Furthermore, a second gear 17 is provided on the top outer surface of the first gear 14, and a first rotating shaft 16 is fixedly sleeved at the center of the second gear 17. The end of the first rotating shaft 16 away from the second gear 17 is rotatably connected to the first connecting plate 15, and the first gear 14 and the second gear 17 are meshed together. A third gear 19 is provided on the top outer surface of the first rotating shaft 16, and a third rotating rod 18 is fixedly sleeved at the center of the third gear 19. A second connecting plate 20 is rotatably sleeved on the outer surface of the end of the third rotating rod 18 away from the third gear 19. The end of the second connecting plate 20 away from the third rotating rod 18 is fixedly connected to the end of the first rotating rod 11 away from the first connecting plate 15.

[0045] Furthermore, the other end of the third rotating rod 18 extends through the middle of the first connecting plate 15 toward the rear end of the inner wall of the polishing device housing 1. The outer surface of the extended end of the third rotating rod 18 is fixedly fitted with the third connecting plate 26. The center of the third connecting plate 26 is rotatably mounted with the fourth rotating shaft 34. The outer surface of the end of the fourth rotating shaft 34 away from the third connecting plate 26 is fixedly fitted with the sixth gear 33. The outer surface of the third rotating rod 18 located between the second connecting plate 20 and the first connecting plate 15 is fixedly fitted with the tapered column 21. The sixth gear 33 is meshed with the third gear 19, and the second gear 17 is meshed with the third gear 19.

[0046] Furthermore, a third rotating shaft 27 is rotatably sleeved on the end of the third connecting plate 26 away from the third rotating rod 18, and a fourth gear 28 is fixedly sleeved on the end of the third rotating shaft 27 away from the third connecting plate 26. The fourth gear 28 meshes with the sixth gear 33. A fourth connecting plate 29 is rotatably sleeved on the outer surface of the third rotating shaft 27 located between the third connecting plate 26 and the fourth gear 28, and a fourth rotating rod 30 is rotatably sleeved on the end of the fourth connecting plate 29 away from the third rotating shaft 27.

[0047] Furthermore, one end of the fourth rotating rod 30 is rotatably fitted with the same first connecting plate 15, and the end of the same first connecting plate 15 away from the fourth rotating rod 30 is fixedly connected to the outer surface of the second rotating rod 12. The other end of the fourth rotating rod 30 is rotatably fitted with the fifth connecting plate 32, and the end of the fifth connecting plate 32 away from the fourth rotating rod 30 is fixedly connected to the outer surface of the second rotating rod 12.

[0048] Furthermore, a fifth gear 31 is fixedly sleeved on the fourth rotating rod 30 near the outer surface of the same first connecting plate 15. The fifth gear 31 is meshed with the fourth gear 28. The outer surface of the fourth rotating rod 30 located between the fifth gear 31 and the fifth connecting plate 32 is fixedly sleeved with the same conical column 21. Electric telescopic rods 22 are fixedly installed on the opposite sides of the top of the two first connecting plates 15. Connecting blocks 23 are vertically fixedly installed at the middle position of the end of the two electric telescopic rods 22 away from the two first connecting plates 15.

[0049] Furthermore, a connecting block 23 is fixedly installed in the middle position of each of the two connecting blocks 23, and a U-shaped block 25 is rotatably installed at both ends of each of the two second rotating shafts 24. Both U-shaped blocks 25 are fixedly connected to the inner wall of the polishing device housing 1 near the top position on both sides.

[0050] Furthermore, during adjustment, the electric telescopic rod 22 retracts or extends, causing the first connecting plate 15 to rotate around the first rotating rod 11, thereby adjusting the distance between the left and right conical columns 21. The retraction of the electric telescopic rod 22 causes the fourth connecting plate 29 and the third connecting plate 26 to move along its trajectory. The movement of the fourth and third connecting plates 29 and 26 causes the sixth gear 33 and the fourth gear 28 to move accordingly. Simultaneously, the limiting action of the third and fourth connecting plates 26 and 29 ensures continued engagement. The knitting needle is placed at the top of the contact surface of the two conical columns 21, with the larger end of the needle facing the smaller diameter end of the two conical columns 21. Simultaneously, the lifting column 5 moves downwards. The lifting column 5 moves downward, causing the connecting column 6 to move downward. The connecting column 6 moves downward, causing the cone 7 to move downward. After the cone 7 moves downward and the knitting needles come into contact, it stops moving to prevent the knitting needles from moving. Then, the variable frequency motor 13 is started. The output end of the variable frequency motor 13 rotates, causing the first gear 14 to rotate. The first gear 14 rotates counterclockwise, causing the second gear 17 to rotate clockwise. The second gear 17 rotates clockwise, causing the third gear 19 to rotate counterclockwise. The third gear 19 rotates counterclockwise, causing the third rotating rod 18 to rotate counterclockwise. The third rotating rod 18 rotates counterclockwise, causing the conical column 21 to rotate counterclockwise. The third gear 19 rotates counterclockwise, causing the sixth gear 33 to rotate clockwise. The sixth gear 33 rotates clockwise, causing the fourth gear 28 to rotate clockwise. The counter-clockwise rotation of the fourth gear 28 causes the fifth gear 31 to rotate clockwise, which in turn causes the fourth rotating rod 30 to rotate clockwise. This, in turn, causes the identical conical column 21 to rotate clockwise, resulting in the two conical columns 21 rotating in opposite directions. The smaller diameter ends of the two conical columns 21 are aligned in the same direction, while the smaller diameter end of the cone 7 is aligned in the opposite direction to the smaller diameter ends of the two conical columns 21. This polishes the outer surface of the knitting needle. The two conical columns 21 and the cone 7 on this device fix the knitting needle between them, ensuring a tighter fit between the outer surface of the knitting needle and the polished surfaces of the two conical columns 21 and the cone 7. This not only completely polishes the outer surface of the knitting needle but also prevents the fixing from affecting its proper fit. The absence of marks not only increases the polishing efficiency of the device but also improves product quality. Furthermore, it can polish the outer surface of knitting needles of different sizes, thus enhancing the practicality of the polishing device. The two electric telescopic rods 22 effectively prevent damage to one rod during use; the other can be used for adjustment, ensuring that the polishing progress is not affected by machine failure, further increasing polishing efficiency. After polishing, the electric telescopic rods 22 are activated to separate the two conical columns 21, allowing the knitting needles to fall through the loading / unloading C-groove 4 onto the upper surface of the knitting needle conveyor belt 3, completing automatic unloading. The needles are then conveyed to the next process via the fifth gear 31.

[0051] Working principle: During adjustment, the electric telescopic rod 22 retracts or extends, causing the first connecting plate 15 to rotate around the first rotating rod 11, thereby adjusting the distance between the left and right conical columns 21. The retraction of the electric telescopic rod 22 causes the fourth connecting plate 29 and the third connecting plate 26 to move along its trajectory. The movement of the fourth and third connecting plates 29 and 26 causes the sixth gear 33 and the fourth gear 28 to move accordingly. Simultaneously, the limiting action of the third connecting plate 26 and the fourth connecting plate 29 ensures continued engagement. The knitting needle is placed at the top of the contact surface of the two conical columns 21, with the larger end of the needle facing the smaller diameter end of the two conical columns 21. At the same time, the lifting column 5 moves downwards. The lifting column 5 moves downward, causing the connecting column 6 to move downward. The connecting column 6 moves downward, causing the cone 7 to move downward. After the cone 7 moves downward and the knitting needles come into contact, it stops moving to prevent the knitting needles from moving. Then, the variable frequency motor 13 is started. The output end of the variable frequency motor 13 rotates, causing the first gear 14 to rotate. The first gear 14 rotates counterclockwise, causing the second gear 17 to rotate clockwise. The second gear 17 rotates clockwise, causing the third gear 19 to rotate counterclockwise. The third gear 19 rotates counterclockwise, causing the third rotating rod 18 to rotate counterclockwise. The third rotating rod 18 rotates counterclockwise, causing the conical column 21 to rotate counterclockwise. The third gear 19 rotates counterclockwise, causing the sixth gear 33 to rotate clockwise. The sixth gear 33 rotates clockwise, causing the fourth gear 2... 8. Rotating counterclockwise, the fourth gear 28 rotates counterclockwise, driving the fifth gear 31 to rotate clockwise. The fifth gear 31 rotates clockwise, driving the fourth rotating rod 30 to rotate clockwise. The fourth rotating rod 30 rotates clockwise, driving the identical conical column 21 to rotate clockwise. Thus, the two conical columns 21 rotate in opposite directions, with the smaller diameter ends of the two conical columns 21 facing the same direction. The smaller diameter end of the cone 7 is positioned opposite to the smaller diameter ends of the two conical columns 21. This polishes the outer surface of the knitting needle. The two conical columns 21 and the cone 7 on this device fix the knitting needle between them, making the outer surface of the knitting needle more tightly fitted to the polished surfaces of the two conical columns 21 and the cone 7. This not only completely polishes the outer surface of the knitting needle but also prevents the fixing from causing damage. The marks left by the device not only increase its polishing efficiency but also improve product quality. Furthermore, it can polish the outer surface of knitting needles of different sizes, thus enhancing the practicality of the polishing device. The two electric telescopic rods 22 effectively prevent damage to one rod during use; the other can be used for adjustment, ensuring that the polishing progress is not affected by machine damage during production, further increasing polishing efficiency. After polishing is complete, the electric telescopic rods 22 are activated to separate the two conical columns 21, allowing the knitting needles to fall through the loading / unloading C-groove 4 onto the upper surface of the knitting needle conveyor belt 3, completing automatic unloading. The needles are then conveyed to the next process via the fifth gear 31.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surface polishing device for high-precision computerized needle production, comprising a polishing device housing (1), characterized in that: Support legs (2) are fixedly installed at the four corners of the bottom of the outer surface of the polishing device housing (1). The four support legs (2) are arranged in a rectangular array, and a knitting needle conveyor belt (3) is arranged at the bottom of the polishing device housing (1) between the four support legs (2). Among them, the bottom right side of the inner wall of the polishing device housing (1) is fixedly installed with the control system device (9), and the front right side of the polishing device housing (1) is provided with the control panel (10). Among them, the polishing device housing (1) has a C-shaped groove (4) for loading and unloading near the front end, and the control system equipment (9) is electrically connected to the control panel (10); Among them, four fixing blocks (8) are fixedly installed at equal intervals on the bottom of the inner wall of the polishing device housing (1). The four fixing blocks (8) are arranged in a rectangular array, and the polishing device is installed on the four fixing blocks (8). Among them, a lifting column (5) is fixedly installed on the inner wall of the polishing device housing (1) near the middle of the rear end. A connecting column (6) is fixedly installed on the bottom of the inner wall of the polishing device housing (1) away from the front end. A cone (7) is fixedly installed on the end of the connecting column (6) away from the lifting column (5). The polishing device includes a first rotating rod (11) and a second rotating rod (12). The first rotating rod (11) is rotatably mounted on the bottom end of the inner wall of the polishing device housing (1) away from the two fixed blocks (8) on the left side. The second rotating rod (12) is rotatably mounted on the bottom end of the inner wall of the polishing device housing (1) away from the two fixed blocks (8) on the right side. A variable frequency motor (13) is fixedly mounted at the bottom of the polishing device housing (1) at the position of the left rear fixed block (8). One end of the first rotating rod (11) extends through the left rear end fixing block (8), and the extended end of the first rotating rod (11) is fixedly connected to the output end of the variable frequency motor (13). Among them, the first rotating rod (11) is located on the outer surface of the left side between the two fixed blocks (8) and close to the variable frequency motor (13) and is fixedly fitted with the first connecting plate (15). Among them, the first rotating rod (11) is located on the outer surface of the two fixed blocks (8) on the left side, near the first connecting plate (15), and the first gear (14) is fixedly sleeved thereon. A second gear (17) is provided on the top outer surface of the first gear (14). A first rotating shaft (16) is fixedly sleeved at the center position of the second gear (17). The end of the first rotating shaft (16) away from the second gear (17) is rotatably connected to the first connecting plate (15), and the first gear (14) and the second gear (17) are meshed together. Among them, a third gear (19) is provided on the top outer surface of the first rotating shaft (16), a third rotating rod (18) is fixedly sleeved at the center position of the third gear (19), a second connecting plate (20) is rotatably sleeved on the outer surface of the end of the third rotating rod (18) away from the third gear (19), and the end of the second connecting plate (20) away from the third rotating rod (18) is fixedly connected to the end of the first rotating rod (11) away from the first connecting plate (15); The other end of the third rotating rod (18) extends through the middle of the first connecting plate (15) toward the rear end of the inner wall of the polishing device housing (1). The outer surface of the extended end of the third rotating rod (18) is fixedly fitted with the third connecting plate (26). The center of the third connecting plate (26) is rotatably mounted with the fourth rotating shaft (34). The outer surface of the end of the fourth rotating shaft (34) away from the third connecting plate (26) is fixedly fitted with the sixth gear (33). The outer surface of the third rotating rod (18) located between the second connecting plate (20) and the first connecting plate (15) is fixedly fitted with the conical column (21). Among them, the sixth gear (33) is meshed with the third gear (19), and the second gear (17) is meshed with the third gear (19); The third connecting plate (26) is rotatably fitted with a third rotating shaft (27) at one end away from the third rotating rod (18), and a fourth gear (28) is fixedly fitted at one end of the third rotating shaft (27) away from the third connecting plate (26). The fourth gear (28) meshes with the sixth gear (33). Among them, the third rotating shaft (27) is located between the third connecting plate (26) and the fourth gear (28), and the fourth connecting plate (29) is rotatably sleeved on the outer surface. The fourth connecting plate (29) is rotatably sleeved on the end away from the third rotating shaft (27) with the fourth rotating rod (30). The same first connecting plate (15) is rotatably sleeved on one end of the fourth rotating rod (30), and the end of the same first connecting plate (15) away from the fourth rotating rod (30) is fixedly connected to the outer surface of the second rotating rod (12); Among them, the other end of the fourth rotating rod (30) is rotatably sleeved with a fifth connecting plate (32), and the end of the fifth connecting plate (32) away from the fourth rotating rod (30) is fixedly connected to the outer surface of the second rotating rod (12); The fourth rotating rod (30) is fixedly fitted with a fifth gear (31) near the same outer surface of the first connecting plate (15). The fifth gear (31) is meshed with the fourth gear (28). The fourth rotating rod (30) is located between the fifth gear (31) and the fifth connecting plate (32) and the same conical column (21) is fixedly fitted on its outer surface. Among them, electric telescopic rods (22) are fixedly installed on the top opposite surfaces of the two first connecting plates (15), and connecting blocks (23) are fixedly installed vertically at the middle position of the end of the two electric telescopic rods (22) away from the two first connecting plates (15).

2. The surface polishing device for high-precision computerized needle production according to claim 1, characterized in that: The two connecting blocks (23) are fixedly installed in the middle position, and the two second rotating shafts (24) are rotatably installed with U-shaped blocks (25) at both ends. The two U-shaped blocks (25) are fixedly connected to the inner wall of the polishing device housing (1) near the top position.

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