A scissor blade grinding and polishing apparatus

Abstract

The application provides a scissor blade grinding and polishing device, and belongs to the technical field of hardware cutter processing equipment, and solves the technical problems of low integration degree and poor working efficiency and single function of the existing scissor blade polishing machine. The scissor blade grinding and polishing device comprises a base, two fixing blocks for fixing the surface of the base, a lead screw rotatably connected between the two fixing blocks, and a driving motor for driving the rotation of the lead screw, the outer wall of the lead screw is connected with a moving seat through a ball nut, the moving seat is slidably connected to the surface of the base, and a grinding wheel is rotatably connected above the moving seat. In the application, a material supporting unit is arranged on one side of the grinding wheel, and under the action of the material supporting unit and a polishing unit, the single device has high integration degree, compared with the traditional process which relies on skilled artisans to manually complete the grinding and polishing of multiple steps, the manual intervention link is greatly reduced, and multiple scissors can be ground and polished synchronously, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This invention belongs to the technical field of hardware tool processing equipment, and relates to a scissor polishing equipment, particularly a scissor blade grinding and polishing equipment. Background Technology

[0002] As a daily and professional cutting tool, the core performance of scissors depends on the sharpness, symmetry and smoothness of the blade. Traditional scissor sharpening mainly relies on skilled craftsmen to do it by hand on a grinding wheel or whetstone, which has problems such as low efficiency, poor quality consistency, high labor intensity and high dependence on worker experience.

[0003] A search revealed a specialized polishing machine for scissor blades, disclosed in Chinese patent literature [Application No.: CN201220427373.3; Publication No.: CN202716123U]. This specialized polishing machine for scissor blades includes a grinding wheel and a worktable located below the grinding wheel. A clamping block for fixing the scissors is mounted on the worktable. The lower end face of the clamping block is parallel and in contact with the worktable. The upper end face of the clamping block facing the grinding surface of the grinding wheel is an inclined surface, and the angle between the inclined surface and the grinding surface of the grinding wheel is equal to the angle between the cross-section of the scissor blade. The inclined surface also has a protruding post that fits into the central hinge hole of the scissors and a stop block that fits into the top of the back edge of the scissors.

[0004] Although the polishing machine disclosed in this patent facilitates quick assembly and disassembly of the grinding wheel, the transition between the scissor blade grinding and polishing processes still requires manual operation or intervention, making it difficult to achieve continuous automated production. Moreover, the processing function is limited, and completing all edge processing requires changing equipment or workstations, affecting efficiency and easily causing positioning errors. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a scissor blade grinding and polishing device. The technical problem this invention aims to solve is: how to improve the automation level of scissor blade processing and integrate grinding and polishing functions into a scissor blade processing device.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A scissor blade grinding and polishing device includes a base, two fixed blocks that fix the surface of the base, a lead screw rotatably connected between the two fixed blocks, and a drive motor for driving the lead screw to rotate. The outer wall of the lead screw is connected to a movable seat through ball nuts. The movable seat is slidably connected to the surface of the base. A grinding wheel is rotatably connected above the movable seat. The grinding wheel is driven by a first servo motor, and the first servo motor is fixedly installed on one side of the movable seat.

[0008] A fixing plate is fixedly installed on the surface of the base, and guide rails are fixedly installed on both sides of the fixing plate. A material support unit is slidably connected to the surface of the guide rail, and a material conveying unit is provided on the side of the material support unit away from the grinding wheel. The material conveying unit is slidably connected to the surface of the guide rail.

[0009] The guide rail includes two parallel guide bars, which are fixedly connected to the surface of the fixed plate. Each guide bar has a T-slot at its top and a guide hole through its sidewall. A rack plate is fixedly connected between the two guide bars and is fixedly installed on the surface of the fixed plate.

[0010] The material conveying unit includes a movable block, which is slidably connected to the surface of the fixed plate. Multiple telescopic rods are fixedly connected to the surface of the movable block, and the outer wall of the telescopic rods is fitted with telescopic springs. A material support plate is fixedly installed at the top of the telescopic rods.

[0011] An electric motor is fixedly mounted on the surface of the moving block, and movable rods are fixedly mounted on both output ends of the electric motor. The movable rods are rotatably connected to the top of the moving block. Both ends of the movable rods are meshed with a synchronous belt, and the bottom end of the synchronous belt is meshed with a transmission rod. Both ends of the transmission rod are rotatably connected with side plates, and the side plates are fixedly mounted on the bottom end of the moving block. A second gear is fixedly mounted on the outer wall of the transmission rod, and the bottom end of the second gear is meshed with a rack plate.

[0012] The two outer walls of the movable block are fixedly equipped with first toothed plates, and the outer walls of the first toothed plates are movably meshed with gear columns. The gear columns are rotatably connected to the surface of the fixed plate, and the gear columns are located outside the guide rail. The outer walls of the gear columns are meshed with polishing units.

[0013] The movable seat has two guide posts that slide through it. The guide posts are fixedly connected between two fixed blocks and are symmetrically arranged on both sides of the lead screw. The lead screw and the guide posts are distributed in parallel.

[0014] A baffle is fixedly installed between the two fixed blocks, and a material support unit is fixedly installed on the outer wall of the baffle, with the material support unit located below the grinding wheel.

[0015] With the above structure, the moving seat moves stably on the surface of the base under the rotation of the lead screw. Thus, through the cooperation of the lead screw, guide column and moving seat, the high-precision linear feed motion of the grinding wheel is realized. At the same time, the symmetrical arrangement of the guide columns ensures stable and reliable guidance of the moving seat, preventing deflection or vibration caused by grinding force and ensuring grinding accuracy. Moreover, the baffle serves as both structural support and determines the installation reference position of the material support unit. The structure is compact and highly practical.

[0016] The material support unit includes two mounting seats, both of which are slidably connected to the surface of the guide strip. A rotating plate is rotatably connected between the two mounting seats, and multiple positioning posts are equidistantly installed on the surface of the rotating plate. Toothed grooves are fixedly connected to the outer walls of both ends of the rotating plate, and toothed rods are meshed at the bottom of the toothed grooves.

[0017] A connecting plate is fixedly installed between the two racks, and the output end of an electric push rod is fixedly connected to the surface of the connecting plate. A baffle is fixedly connected to the end of the electric push rod away from the connecting plate.

[0018] With the above structure, positioning posts are set on the surface of the rotating plate. Multiple positioning posts facilitate quick positioning of the shears. Moreover, under the action of the electric push rod, when the electric push rod moves the connecting plate and the toothed rod, the meshing action between the toothed rod and the tooth groove of the rotating plate can precisely control the flip angle of the rotating plate. This makes it easy to adapt to the grinding needs of shears with different cutting edge angles, with high adjustment accuracy and a simple and compact structure.

[0019] A rotating rod is rotatably connected between the two mounting bases. The rotating rod is located inside the guide hole and passes through it. The rotating rod is driven by a bidirectional motor, which is fixedly installed on the outside of the mounting base. A first gear is fixedly installed on the outer wall of the rotating rod and meshes with the surface of the rack plate.

[0020] With the above structure, when the bidirectional motor is energized and drives the rotating rod to rotate, the first gear meshes with the fixed rack plate, thereby generating a reaction force to drive the entire material support unit to move along the length of the guide rail. This setting allows the material support unit to move on the surface of the guide rail, making it easier for the material handling unit to pick up and put down the shears, realizing material handling and adjustment between workstations, and improving the smoothness of continuous equipment operation.

[0021] Guide blocks are fixedly installed on both bottom ends of the movable block, and the guide blocks are slidably connected to the inner wall of the T-slot, and the guide blocks are arranged in a "T" shape with respect to the T-slot.

[0022] The T-slot is configured with an inverted "T" shape.

[0023] By adopting the above structure, the T-slot and T-guide block work together to prevent the moving block from falling off, ensuring that the moving block can only slide smoothly along the predetermined guide rail during the process of carrying and transporting the shears, without tilting or derailing, thus ensuring the stability and reliability of the material transportation process.

[0024] The polishing unit includes a fixed seat, and the fixed seat is fixedly connected to the surface of the base. A plurality of columns penetrate through the top end of the fixed seat. The top end of the column is fixedly connected with a limiting plate, and the limiting plate is located above the fixed seat. The bottom end of the column is fixedly connected with a top plate, and the top plate is located inside the fixed seat. The output end of a cylinder is fixedly installed at the top end of the top plate, and the cylinder is fixedly installed on the inner top wall of the fixed seat;

[0025] Below the top plate, two rotating rollers are rotatably connected. The output end of a second servo motor is fixedly connected to the outer end of one of the rotating rollers. A polishing belt is meshed and connected to the outer walls of the two rotating rollers.

[0026] With the above structure, through the setting of the cylinder, the top plate and the column can accurately control the pressing pressure and contact position of the polishing belt, ensuring the polishing quality and facilitating the second servo motor to drive the polishing belt to polish the blade evenly and stably.

[0027] On both inner walls of the fixed seat, a bidirectional tooth column is slidably connected. One side of the bidirectional tooth column is meshed and connected to the outer wall of a gear column. The top end of the bidirectional tooth column is meshed and connected to a second tooth plate, and the second tooth plate is rotatably connected inside the fixed seat. The outer end of the second tooth plate is fixedly connected with a third gear, and the third gear is rotatably connected to the outer wall of the fixed seat;

[0028] The outer wall of the third gear is meshed and connected to a side rack. The top end of the side rack is fixedly installed with a connecting rod. Above the connecting rod, a plurality of mounting rods are fixedly connected. The bottom end of the mounting rod is fixedly connected with a pressing plate. The pressing plate is slidably connected to the inner wall of the material tank. The material tank is fixedly installed on the outer wall of the fixed seat. A polishing agent is filled between the pressing plate and the material tank.

[0029] With the above structure, when the material transporting unit moves towards the inside of the fixed seat, under the meshing action of the first tooth plate and the gear column, the gear column drives the bidirectional tooth column to slide, and the side rack moves downward, so as to squeeze the polishing agent in the material tank to the polishing area through the bottom outlet of the material tank, realizing the accuracy and real-time of the polishing agent supply.

[0030] The connecting rod is slidably connected to the outer wall of the fixed seat. The two connecting rods are arranged in an inverted U-shaped structure. The bottom end of the connecting rod is fixedly connected with a return spring. The bottom end of the return spring is fixedly installed with a side block, and the side block is fixedly connected to the outer wall of the fixed seat.

[0031] With the above structure, through the setting of the return spring, it is ensured that after a polishing agent supply action is completed, the connecting rod and the pressing plate can automatically reset under the action of the spring force to prepare for the next supply. And through the inverted U-shaped structure setting of the two connecting rods, the overall structural rigidity and movement synchronization of the connecting rod are improved, which is beneficial to extending the service life and working accuracy of the equipment.

[0032] Compared with the prior art, the scissor blade grinding and polishing device of the present invention has the following advantages:

[0033] 1. In this invention, by setting a material support unit on one side of the grinding wheel, and with the action of the material conveying unit and the polishing unit, the integration of a single machine is high. Compared with the traditional process that relies on skilled craftsmen to manually complete multiple grinding and polishing steps, it greatly reduces the manual intervention links. Moreover, it can grind and polish multiple scissors simultaneously, which greatly improves production efficiency and facilitates mass production. At the same time, through the meshing connection between the tooth groove of the rotating plate and the toothed rod, the rotating plate can drive the scissors to adjust the angle through the positioning column, avoiding the current problem of manual angle adjustment relying on experience and poor consistency, and ensuring the symmetry of the blade edge of each scissor and the grinding consistency.

[0034] 2. In this invention, by setting up the material conveying unit, the scissors after grinding can directly enter the polishing unit, realizing a seamless and continuous flow between the two core processes of grinding and polishing, greatly reducing the waiting and operation time between processes. Furthermore, by using the guide rail structure shared by the material conveying unit and the material support unit, the equipment space is rationally utilized, the structure is compact, and the complexity, high cost and safety hazards brought about by using high-speed robotic arms are avoided.

[0035] 3. In this invention, under the action of the material support unit, the positioning pins enable the scissors to be efficiently positioned and installed on the surface of the rotating plate. Furthermore, the movement of multiple positioning pins and grinding wheels facilitates the simultaneous grinding of multiple scissors. The rotation of the rotating plate allows for precise adjustment of the grinding angle, making it widely applicable and adaptable to the processing of scissors with different cutting edge design angles.

[0036] 4. In this invention, under the active meshing action of the gear column and the material conveying unit, the polishing machine is automatically squeezed out when the material conveying unit reaches one side of the polishing station, realizing the precise supply of polishing agent, ensuring that the medium adhesion state of the polishing area is consistent each time polishing, fundamentally eliminating the polishing quality fluctuation caused by uneven supply of polishing agent, and making the surface finish of the cutting edge stable and reliable. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a scissor blade grinding and polishing device according to the present invention;

[0038] Figure 2 This is a top view schematic diagram of a scissor blade grinding and polishing device according to the present invention;

[0039] Figure 3 This is a schematic cross-sectional view of a scissor blade grinding and polishing device according to the present invention;

[0040] Figure 4 This is a schematic diagram of the structure of the grinding wheel and the material support unit in this invention;

[0041] Figure 5 This is a cross-sectional structural diagram of the grinding wheel and the material support unit in this invention;

[0042] Figure 6 In this invention Figure 3 A magnified structural diagram at point A;

[0043] Figure 7 This is a schematic diagram of the material support unit in this invention;

[0044] Figure 8 This is a bottom-view three-dimensional structural diagram of the material support unit in this invention;

[0045] Figure 9 This is a side view of the material handling unit in this invention.

[0046] Figure 10 This is a three-dimensional structural diagram of the material handling unit in this invention;

[0047] Figure 11 This is a cross-sectional structural diagram of the material handling unit in this invention;

[0048] Figure 12 This is a three-dimensional structural diagram of the polishing unit in this invention;

[0049] Figure 13 This is a side view of the polishing unit in this invention.

[0050] Figure 14 This is a cross-sectional structural diagram of the polishing unit in this invention;

[0051] Figure 15 In this invention Figure 12 A magnified structural diagram at point B.

[0052] In the diagram, 1. Base; 2. Fixing block; 3. Lead screw; 4. Moving seat; 5. Drive motor; 6. Grinding wheel; 7. First servo motor; 8. Guide column; 9. Fixing plate; 10. Guide rail; 101. Guide bar; 102. T-slot; 103. Rack plate; 104. Guide hole; 11. Baffle; 12. Material support unit; 1201. Mounting seat; 1202. Rotating plate; 1203. Positioning column; 1204. Gear groove; 1205. Gear; 1206. Connecting plate; 1207. Electric push rod; 1208. Rotating rod; 1209. First gear; 1210. Bidirectional motor; 13. Material conveying unit; 1301. Moving block; 1302. Telescopic rod; 1303. Telescopic spring; 1304. Material support plate; 13 05. Electric motor; 1306. Movable rod; 1307. Synchronous belt; 1308. Transmission rod; 1309. Second gear; 1310. Side plate; 1311. Guide block; 1312. First gear plate; 14. Gear column; 15. Polishing unit; 1501. Fixed base; 1502. Column; 1503. Top plate; 1504. Cylinder; 1505. Limiting plate; 1506. Bidirectional gear column; 1507. Second gear plate; 1508. Third gear; 1509. Side rack; 1510. Connecting rod; 1511. Return spring; 1512. Side block; 1513. Mounting rod; 1514. Pressure plate; 1515. Material trough; 1516. Rotating roller; 1517. Polishing belt; 1518. Second servo motor. Detailed Implementation

[0053] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0054] like Figures 1-15As shown, a scissor blade grinding and polishing device includes a base 1, two fixed blocks 2 that fix the surface of the base 1, a lead screw 3 rotatably connected between the two fixed blocks 2, a movable seat 4, a drive motor 5 for driving the lead screw 3 to rotate, a grinding wheel 6, a first servo motor 7, a guide column 8, a fixed plate 9, a guide rail 10, a guide bar 101, a T-slot 102, a rack plate 103, a guide hole 104, a baffle 11, a material support unit 12, a mounting base 1201, a rotating plate 1202, a positioning column 1203, a toothed groove 1204, a toothed bar 1205, a connecting plate 1206, and an electric push rod. 1207, Rotating rod; 1208, First gear; 1209, Bidirectional motor; 1210, Material conveying unit; 13, Moving block; 1301, Telescopic rod; 1302, Telescopic spring; 1303, Material support plate; 1304, Electric motor; 1305, Movable rod; 1306, Synchronous belt; 1307, Transmission rod; 1308, Second gear; 1309, Side plate; 1310, Guide block; 1311, First toothed plate; 1312, Gear post; 14, Polishing unit; 15, Fixed base; 1501, Column; 1502, Top plate; 1503, Cylinder; 1504, Limiting plate; 1505, Bidirectional toothed post; 150 6. The components include a second toothed plate 1507, a third gear 1508, a side rack 1509, a connecting rod 1510, a return spring 1511, a side block 1512, a mounting rod 1513, a pressure plate 1514, a material trough 1515, a rotating roller 1516, a polishing belt 1517, and a second servo motor 1518. A movable seat 4 is connected to the outer wall of the lead screw 3 via a ball nut. The movable seat 4 is slidably connected to the surface of the base 1. A grinding wheel 6 is rotatably connected above the movable seat 4, and the grinding wheel 6 is driven by a first servo motor 7, which is fixedly mounted on one side of the movable seat 4. The moving seat 4 has two guide columns 8 that slide through it. The guide columns 8 are fixedly connected between two fixed blocks 2 and are symmetrically arranged on both sides of the lead screw 3. The lead screw 3 and the guide columns 8 are parallel to each other. Under the rotation of the lead screw 3, the moving seat 4 moves stably on the surface of the base 1. Thus, through the cooperation of the lead screw 3, the guide columns 8 and the moving seat 4, the high-precision linear feed motion of the grinding wheel 6 is realized. At the same time, the symmetrical arrangement of the guide columns 8 enables the moving seat 4 to achieve stable and reliable guidance, preventing deflection or vibration caused by grinding force and ensuring grinding accuracy.

[0055] A fixing plate 9 is fixedly mounted on the surface of the base 1, and guide rails 10 are fixedly mounted on both sides of the fixing plate 9. A material support unit 12 is slidably connected to the surface of the guide rails 10, and a material conveying unit 13 is provided on the side of the material support unit 12 away from the grinding wheel 6. The material conveying unit 13 is slidably connected to the surface of the guide rails 10. The guide rails 10 include two parallel guide bars 101, which are fixedly connected to the surface of the fixing plate 9. The parallel double guide bars 101 ensure that the material conveying unit 13 and the material support unit 12 perform precise linear motion, and a T-slot 102 is provided at the top of each guide bar 101 to effectively prevent... The moving block 1301 and the mounting base 1201 can tilt upward or disengage from the track when bearing the scissors or subjected to lateral force. At the same time, guide holes 104 are provided through the side walls of the guide bars 101, so that the guide rail 10 allows the rotating rod 1208 of the material support unit 12 to pass through the guide holes 104, and restricts the rotational movement of the rotating rod 1208 to a set path without affecting the overall sliding of the material support unit 12. In addition, a rack plate 103 is fixedly connected between the two guide bars 101. The rack plate 103 is fixedly installed on the surface of the fixed plate 9, which facilitates the switching and engagement of work positions through the fixed rack plate 103.

[0056] The material conveying unit 13 includes a movable block 1301, which is slidably connected to the surface of the fixed plate 9. Guide blocks 1311 are fixedly installed on both bottom ends of the movable block 1301, and the guide blocks 1311 are slidably connected to the inner wall of the T-slot 102. The guide blocks 1311 are arranged in a "T" shape relative to the T-slot 102, and the T-slot 102 is arranged in an inverted "T" shape. Through the cooperation between the T-slot 102 and the T-shaped guide blocks 1311, the movable block 1301... The anti-fall-off effect of 301 ensures that the moving block 1301 can only slide smoothly along the predetermined guide rail 10 during the carrying and transporting of the shears, without tilting or derailing, thus guaranteeing the stability and reliability of the material transport process. Simultaneously, multiple telescopic rods 1302 are fixedly connected to the surface of the moving block 1301, and telescopic springs 1303 are sleeved on the outer wall of each telescopic rod 1302. A material support plate 1304 is fixedly installed at the top of each telescopic rod 1302. An electric motor 1305 is fixedly mounted on the surface, and movable rods 1306 are fixedly mounted on both output ends of the electric motor 1305. The movable rods 1306 are rotatably connected to the top of the moving block 1301. Synchronous belts 1307 are engaged with both ends of the movable rods 1306, and transmission rods 1308 are engaged with the bottom ends of the synchronous belts 1307. Side plates 1310 are rotatably connected to both ends of the transmission rods 1308, and the side plates 1310 are fixedly mounted on the bottom of the moving block 1301. At the end, a second gear 1309 is fixedly installed on the outer wall of the transmission rod 1308, and the bottom end of the second gear 1309 is meshed with a rack plate 103. A first toothed plate 1312 is fixedly installed on both outer walls of the moving block 1301, and a gear column 14 is movably meshed with the outer wall of the first toothed plate 1312. The gear column 14 is rotatably connected to the surface of the fixed plate 9, and the gear column 14 is located outside the guide rail 10. A polishing unit 15 is meshed with the outer wall of the gear column 14.

[0057] A baffle 11 is fixedly installed between the two fixed blocks 2, and a material support unit 12 is fixedly installed on the outer wall of the baffle 11. The material support unit 12 is located below the grinding wheel 6. The baffle 11 serves as both a structural support and determines the installation reference position of the material support unit 12. The structure is compact and highly practical. Specifically, the material support unit 12 includes two mounting seats 1201, both of which are slidably connected to the surface of the guide strip 101. A rotating plate 1202 is rotatably connected between the two mounting seats 1201, and multiple positioning posts 1203 are equidistantly installed on the surface of the rotating plate 1202. Toothed grooves 1204 are fixedly connected to the outer walls of both ends of the rotating plate 1202, and toothed rods 1205 are meshed at the bottom ends of the toothed grooves 1204. A connecting plate 1206 is fixedly installed, and the output end of an electric push rod 1207 is fixedly connected to the surface of the connecting plate 1206. A baffle 11 is fixedly connected to the end of the electric push rod 1207 away from the connecting plate 1206. By setting positioning posts 1203 on the surface of the rotating plate 1202, multiple positioning posts 1203 facilitate quick positioning of the scissors. Under the action of the electric push rod 1207, when the electric push rod 1207 moves by pushing the connecting plate 1206 and the rack 1205, the rotation angle of the rotating plate 1202 can be precisely controlled by the meshing action of the rack 1205 and the tooth groove 1204 of the rotating plate 1202. This facilitates the adaptation to the grinding needs of scissors with different cutting edge angles, has high adjustment accuracy, and has a simple and compact structure.

[0058] A rotating rod 1208 is rotatably connected between two mounting bases 1201. The rotating rod 1208 is located inside the guide hole 104 and passes through it. The rotating rod 1208 is driven by a bidirectional motor 1210, which is fixedly installed on the outside of the mounting base 1201. A first gear 1209 is fixedly installed on the outer wall of the rotating rod 1208 and meshes with the surface of the rack plate 103. When the bidirectional motor 1210 is energized and drives the rotating rod 1208 to rotate, the first gear 1209 meshes with the fixed rack plate 103, thereby generating a reaction force to drive the entire material support unit 12 to move along the length of the guide rail 10. With this arrangement, the material support unit 12 can move on the surface of the guide rail 10, which facilitates the subsequent material handling unit 13 to accurately pick up and place the shears, realizes material handling and adjustment between workstations, and improves the smoothness of continuous operation of the equipment.

[0059] Furthermore, the polishing unit 15 includes a fixed base 1501, which is fixedly connected to the surface of the base 1. Multiple columns 1502 are provided through the top of the fixed base 1501. A limiting plate 1505 is fixedly connected to the top of each column 1502, and the limiting plate 1505 is located above the fixed base 1501. A top plate 1503 is fixedly connected to the bottom of each column 1502, and the top plate 1503 is located inside the fixed base 1501. The output end of a cylinder 1504 is fixedly installed on the top of the top plate 1503, and the cylinder 1504 is fixedly installed on the fixed base. The inner top wall of 1501, below the top plate 1503, has two rotating rollers 1516 rotatably connected, and the outer end of one of the rotating rollers 1516 is fixedly connected to the output end of the second servo motor 1518. The outer walls of the two rotating rollers 1516 are meshed with polishing belts 1517. With the setting of cylinder 1504, the top plate 1503 and the column 1502 can accurately control the downward pressure and contact position of the polishing belt 1517, ensuring the polishing quality and facilitating the second servo motor 1518 to drive the polishing belt 1517 to achieve uniform and stable polishing of the blade.

[0060] Both inner walls of the fixed base 1501 are slidably connected to bidirectional gear spurs 1506, and one side of the bidirectional gear spurs 1506 is meshed with the outer wall of the gear spur 14. The top of the bidirectional gear spurs 1506 is meshed with a second gear plate 1507, which is rotatably connected to the inner side of the fixed base 1501. The outer end of the second gear plate 1507 is fixedly connected to a third gear 1508, which is rotatably connected to the outer wall of the fixed base 1501. The outer wall of the third gear 1508 is meshed with a side rack 1509. A connecting rod 1510 is fixedly installed at the top of the side rack 1509. Multiple mounting rods 1513 are fixedly connected above the connecting rod 1510, and a pressure plate 1514 is fixedly connected to the bottom of each mounting rod 1513. The pressure plate 1514 is slidably connected to the inner wall of the material trough 1515, which is fixedly installed on the outer wall of the fixed base 1501. Polishing agent is filled between the pressure plate 1514 and the material trough 1515. Through the arrangement of the gear column 14, when the material conveying unit 13 moves towards the inner side of the fixed base 1501, the first gear plate... Under the meshing action of 1312 and gear column 14, the gear column 14 drives the bidirectional gear column 1506 to slide, which causes the side rack 1509 to move downward, thereby squeezing the polishing agent in the material tank 1515 through the bottom outlet of the material tank 1515 to the polishing area, realizing the precision and real-time supply of polishing agent. The connecting rod 1510 is slidably connected to the outer wall of the fixed base 1501, and the two connecting rods 1510 are arranged in a "U" shape. The bottom end of the connecting rod 1510 is fixedly connected to a return spring 1511. A side block 1512 is fixedly installed at the bottom of 511, and the side block 1512 is fixedly connected to the outer wall of the fixed base 1501. The reset spring 1511 ensures that after one polishing agent supply action is completed, the connecting rod 1510 and the pressure plate 1514 can automatically reset under the action of the spring force, preparing for the next supply. Furthermore, the "U"-shaped structure of the two connecting rods 1510 improves the overall structural rigidity and motion synchronization of the connecting rods 1510, which is beneficial to extending the service life and working accuracy of the equipment.

[0061] Working principle: During operation, the scissors to be processed are placed on the rotating plate 1202 of the material support unit 12, and the hinge holes of the scissors are fitted into the positioning pins 1203 for positioning. The electric push rod 1207 drives the rack 1205 to move. Under the meshing action of the rack 1205 and the toothed groove 1204 at the end of the rotating plate 1202, the rotating plate 1202 is precisely angled so that the cutting edge and the working surface of the grinding wheel 6 reach the required processing angle. Then, the first servo motor 7 drives the grinding wheel 6 to rotate and grind the scissor cutting edge. At the same time, the drive motor 5 drives the lead screw 3 to move the moving seat 4 and the grinding wheel 6. To facilitate the synchronous and efficient grinding of multiple scissor blades on the material support unit 12, after the scissor grinding process is completed, the rotating plate 1202, driven by the electric push rod 1207 and the rack 1205, continues to rotate towards the material conveying unit 13, causing the ground scissors to rotate onto the material support plate 1304 of the material conveying unit 13. After the scissors move from the material support unit 12 to the material conveying unit 13, they are driven by the electric motor 1305, which in turn drives the second gear 1309 to rotate via the synchronous belt 1307 and the transmission rod 1308. The second gear 1309 meshes with the fixed rack plate 103, thus enabling the material conveying unit 1304 to rotate. The material handling unit 13 moves on the surface of the guide rail 10. When the material handling unit 13 moves to the outside of the gear column 14, the gear column 14 rotates on the surface of the base 1 due to the meshing of the first toothed plate 1312 with the gear column 14. Furthermore, the bidirectional toothed column 1506 meshes with the outer wall of the gear column 14, causing the bidirectional toothed column 1506 and the first toothed plate 1312 to move in opposite directions. The second toothed plate 1507 meshes with the top of the bidirectional toothed column 1506, causing the second toothed plate 1507 to rotate synchronously. Under the fixing action of the second toothed plate 1507 and the third gear 1508, the third gear 1508 and the side rack 1509... The meshing connection causes the side rack 1509 to drive the connecting rod 1510 and the pressure plate 1514 to press down, thereby extruding the polishing agent in the material trough 1515 into the polishing area on the surface of the material support plate 1304. After the material support plate 1304 drives the scissors to move into the polishing unit 15, the cylinder 1504 pushes the top plate 1503 and the rotating roller 1516 to press down, so that the polishing belt 1517 contacts the blade for uniform polishing. After polishing is completed, the cylinder 1504 retracts, the polishing belt 1517 leaves the scissor surface, and then the material conveying unit 13 transports the finished scissors to the unloading area. This completes the working principle of the scissor blade grinding and polishing equipment.

[0062] In summary, in this invention, by setting a material support unit 12 on one side of the grinding wheel 6, and with the action of the material conveying unit 13 and the polishing unit 15, the integration level of a single device is high. Compared with the traditional process that relies on skilled craftsmen to manually complete multiple grinding and polishing steps, the manual intervention is greatly reduced. Moreover, multiple scissors can be ground and polished simultaneously, greatly improving production efficiency and facilitating mass production. At the same time, through the meshing connection between the tooth groove 1204 of the rotating plate 1202 and the toothed bar 1205, the rotating plate 1202 can drive the scissors to adjust the angle through the positioning column 1203. This avoids the current problem of manual angle adjustment relying on experience and poor consistency, ensuring the symmetry and grinding consistency of each scissor blade, and solving the technical problems of low integration level, poor working efficiency, and single function of existing scissor blade polishing machines.

[0063] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A scissor blade grinding and polishing device, comprising a base (1), two fixing blocks (2) fixing the surface of the base (1), a lead screw (3) rotatably connected between the two fixing blocks (2), and a drive motor (5) for driving the lead screw (3) to rotate, characterized in that, The outer wall of the lead screw (3) is connected to a movable seat (4) by a ball nut. The movable seat (4) is slidably connected to the surface of the base (1). A grinding wheel (6) is rotatably connected above the movable seat (4). The grinding wheel (6) is driven by a first servo motor (7). The first servo motor (7) is fixedly installed on one side of the movable seat (4). A fixing plate (9) is fixedly installed on the surface of the base (1), and guide rails (10) are fixedly installed on both sides of the fixing plate (9). A material support unit (12) is slidably connected to the surface of the guide rail (10), and a material conveying unit (13) is provided on the side of the material support unit (12) away from the grinding wheel (6). The material conveying unit (13) is slidably connected to the surface of the guide rail (10). The guide rail (10) includes two parallel guide bars (101), which are fixedly connected to the surface of the fixed plate (9). Each guide bar (101) has a T-slot (102) at its top and a guide hole (104) through its sidewall. A rack plate (103) is fixedly connected between the two guide bars (101) and is fixedly installed on the surface of the fixed plate (9). The material handling unit (13) includes a moving block (1301), which is slidably connected to the surface of the fixed plate (9). Multiple telescopic rods (1302) are fixedly connected to the surface of the moving block (1301), and a telescopic spring (1303) is sleeved on the outer wall of the telescopic rod (1302). A material support plate (1304) is fixedly installed at the top of the telescopic rod (1302). An electric motor (1305) is fixedly mounted on the surface of the movable block (1301), and a movable rod (1306) is fixedly mounted on both output ends of the electric motor (1305). The movable rod (1306) is rotatably connected above the movable block (1301). Both ends of the movable rod (1306) are meshed with a synchronous belt (1307), and the bottom end of the synchronous belt (1307) is meshed with a transmission rod (1308). Both ends of the transmission rod (1308) are rotatably connected with a side plate (1310), and the side plate (1310) is fixedly mounted on the bottom end of the movable block (1301). A second gear (1309) is fixedly mounted on the outer wall of the transmission rod (1308), and the bottom end of the second gear (1309) is meshed with a rack plate (103). The two outer walls of the movable block (1301) are fixedly installed with first toothed plates (1312), and the outer walls of the first toothed plates (1312) are movably meshed with gear columns (14). The gear columns (14) are rotatably connected to the surface of the fixed plate (9), and the gear columns (14) are located outside the guide rail (10). The outer walls of the gear columns (14) are meshed with polishing units (15). The polishing unit (15) includes a fixed seat (1501), and the fixed seat (1501) is fixedly connected to the surface of the base (1). Both sides of the inner wall of the fixed seat (1501) are slidably connected with bidirectional toothed columns (1506), and one side of the bidirectional toothed column (1506) is meshed with the outer wall of the gear column (14).

2. The scissor blade grinding and polishing equipment according to claim 1, characterized in that, The movable seat (4) has two guide posts (8) that slide through it. The guide posts (8) are fixedly connected between two fixed blocks (2). The two guide posts (8) are symmetrically arranged on both sides of the lead screw (3), and the lead screw (3) and the guide posts (8) are parallel to each other. A baffle (11) is fixedly installed between the two fixed blocks (2), and a material support unit (12) is fixedly installed on the outer wall of the baffle (11), and the material support unit (12) is located below the grinding wheel (6).

3. The scissor blade grinding and polishing equipment according to claim 2, characterized in that, The material support unit (12) includes two mounting seats (1201), both of which are slidably connected to the surface of the guide bar (101). A rotating plate (1202) is rotatably connected between the two mounting seats (1201), and multiple positioning posts (1203) are equidistantly installed on the surface of the rotating plate (1202). Both ends of the outer wall of the rotating plate (1202) are fixedly connected with toothed grooves (1204), and the bottom end of the toothed grooves (1204) is meshed with a toothed rod (1205). A connecting plate (1206) is fixedly installed between the two racks (1205), and the output end of an electric push rod (1207) is fixedly connected to the surface of the connecting plate (1206), and a baffle (11) is fixedly connected to the end of the electric push rod (1207) away from the connecting plate (1206).

4. The scissor blade grinding and polishing equipment according to claim 3, characterized in that, A rotating rod (1208) is rotatably connected between the two mounting bases (1201). The rotating rod (1208) is located inside the guide hole (104) and passes through it. The rotating rod (1208) is driven by a bidirectional motor (1210), which is fixedly installed on the outside of the mounting base (1201). A first gear (1209) is fixedly installed on the outer wall of the rotating rod (1208), and the first gear (1209) is meshed with the surface of the rack plate (103).

5. The scissor blade grinding and polishing equipment according to claim 1, characterized in that, Guide blocks (1311) are fixedly installed on both bottom ends of the movable block (1301), and the guide blocks (1311) are slidably connected to the inner wall of the T-slot (102), and the guide blocks (1311) are arranged in a "T" shape with respect to the T-slot (102). The T-slot (102) is arranged in an inverted "T" shape.

6. The scissor blade grinding and polishing equipment according to claim 1, characterized in that, A plurality of columns (1502) penetrate through the top end of the fixed seat (1501). A limiting plate (1505) is fixedly connected to the top end of the columns (1502). The limiting plate (1505) is located above the fixed seat (1501). The bottom end of the columns (1502) is fixedly connected to a top plate (1503). The top plate (1503) is located inside the fixed seat (1501). And the output end of a cylinder (1504) is fixedly installed at the top end of the top plate (1503). And the cylinder (1504) is fixedly installed on the inner top wall of the fixed seat (1501); Two rotating rollers (1516) are rotatably connected below the top plate (1503). And the output end of a second servo motor (1518) is fixedly connected to the outer end of one of the rotating rollers (1516). And a polishing belt (1517) is meshed and connected to the outer walls of the two rotating rollers (1516).

7. The scissor blade grinding and polishing equipment according to claim 6, characterized in that, The top end of the bidirectional tooth column (1506) is meshed and connected to a second tooth plate (1507). The second tooth plate (1507) is rotatably connected to the inside of the fixed seat (1501). The outer end of the second tooth plate (1507) is fixedly connected to a third gear (1508). And the third gear (1508) is rotatably connected to the outer wall of the fixed seat (1501); The outer wall of the third gear (1508) is meshed and connected to a side rack (1509). And a connecting rod (1510) is fixedly installed at the top end of the side rack (1509). A plurality of mounting rods (1513) are fixedly connected above the connecting rod (1510). And a pressing plate (1514) is fixedly connected to the bottom end of the mounting rods (1513). The pressing plate (1514) is slidably connected to the inner wall of the material groove (1515). And the material groove (1515) is fixedly installed on the outer wall of the fixed seat (1501). And a polishing agent is filled between the pressing plate (1514) and the material groove (1515).

8. The scissor blade grinding and polishing equipment according to claim 7, characterized in that, The connecting rod (1510) is slidably connected to the outer wall of the fixed seat (1501). And the two connecting rods (1510) are arranged in an inverted "U” shape structure. And the bottom end of the connecting rod (1510) is fixedly connected to a return spring (1511). The bottom end of the return spring (1511) is fixedly installed with a side block (1512). And the side block (1512) is fixedly connected to the outer wall of the fixed seat (1501).

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