Tool surface composite strengthening apparatus
Patent Information
- Application Number
- CN202521674110.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-08-07
AI Technical Summary
[0013]与现有技术相比，本实用新型的有益效果是：本刀具表面复合强化设备，具有以下好处：
Smart Images
Figure CN224784329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tool surface treatment technology, specifically to a tool surface composite strengthening device. Background Technology
[0002] A utility knife is a precision cutting tool widely used in office work, crafts, model making, and other scenarios. Its core feature is its replaceable blade design. The segmented structure allows users to easily break off the old section after dulling, exposing a sharp new blade, greatly extending the tool's lifespan and ensuring cutting results. The blade is often equipped with a telescopic adjustment and locking device, which can safely store the blade and control the blade length as needed, balancing flexibility and safety.
[0003] Utility knives excel at precisely cutting various soft materials, such as paper, cardboard, tape, and plastic film, making them essential tools in design, packaging, and DIY fields. However, with prolonged use, the knife repeatedly extends and retracts from its internal structure, causing the blade to wear down. The unused portion of the blade at the rear also gradually dulls, reducing its sharpness and causing rust to appear. While existing processing methods for utility knives involve quenching and tempering to enhance hardness, these processes have limited effect on corrosion resistance and wear resistance. Therefore, we propose a composite surface strengthening device for utility knives. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a composite strengthening device for the surface of a cutting tool. Through two surface treatments, hard chrome plating and hot water aging, the wear resistance and corrosion resistance of utility knife blades are improved, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite strengthening device for tool surfaces, comprising a passivation tank, a chromium plating mechanism, and a cleaning mechanism; Passivation tank: The lower end of its front inner wall is fixedly connected with evenly distributed heating tubes, and the left end of the bottom wall of the passivation tank is fixedly connected with a chrome plating tank frame. The chrome plating mechanism includes a chrome plating tank, a connecting seat, connecting pipes, a cathode assembly, a pressure plate, a conductive plate, and an anode assembly. The chrome plating tank is placed inside the chrome plating tank frame. An anode assembly is located on the left side of the chrome plating tank. The front and rear sides of the connecting seat are threaded with symmetrically distributed hexagonal columns. The connecting seat and the hexagonal columns are placed in the middle of the chrome plating tank. A uniformly distributed connecting pipe is fixedly connected to the middle of the connecting seat. A conductive plate is bolted to the upper end of the connecting seat. A cathode assembly is located at the lower end of each connecting pipe. The cathode assemblies are all configured to cooperate with the conductive plates. Connecting plates are located at the lower ends of the connecting pipes at the front end, rear end, and middle. Pressure plates are bolted between the connecting plates. The cathode assemblies are all configured to cooperate with the pressure plates. A uniformly distributed blade is located between the cathode assemblies and the pressure plates. The anode assembly and the conductive plate are all configured to cooperate with an external DC power supply. Cleaning mechanism: Located at the top of the passivation tank, it improves the wear resistance and corrosion resistance of utility knife blades through two surface treatments: hard chrome plating and hot water aging.
[0006] Furthermore, it also includes a controller, which is placed in front of the passivation tank. The input end of the controller is electrically connected to an external power source, and the input ends of the heating tubes are electrically connected to the output end of the controller, controlling the electrical appliances.
[0007] Furthermore, the chrome plating mechanism also includes a drain plate, which is located on the upper right side of the chrome plating tank to avoid waste of the electroplating solution.
[0008] Furthermore, the cathode assembly includes a cathode seat, guide posts, copper wires, and copper rings. The cathode seats are all threaded to the lower end of the connecting pipe. Copper wires are provided along the edges of the cathode seats. A groove is provided at the left end of the cathode seat, and a copper ring is fixedly connected inside the groove. The left end of the copper wire contacts the right side of the copper ring located in the same cathode seat. A guide post is provided in the middle of the groove. The guide post passes through the inner ring of the copper ring located in the same cathode seat. Copper wires are placed inside the connecting pipe. The lower ends of the copper wires are fixedly connected to the copper wires adjacent to the lower ends. The upper ends of the copper wires are in contact with the lower surface of the conductive plate. The round holes of the blades are inserted into the outside of the guide posts. The left ends of the guide posts are inserted into the inside of the pressure plate. The blades are located between the cathode seat and the pressure plate, and the blades are fixed.
[0009] Furthermore, the anode assembly includes a support rod, hooks, and an anode plate. The support rod is placed on the upper left side of the chrome plating tank. The middle of the support rod is secured with evenly distributed hooks. The lower ends of the hooks are hung with the anode plate. The anode plate is configured to cooperate with an external DC power supply for electroplating.
[0010] Furthermore, the cleaning mechanism includes a cleaning tank, water pipes, saw grooves, a support plate, and a T-shaped pipe. There are two cleaning tanks, both of which are fixedly connected to the middle of the passivation tank. Water pipes are symmetrically distributed between the front and rear side walls of the cleaning tank. The middle of each water pipe is equipped with evenly distributed nozzles. A T-shaped pipe is fixedly connected between the right ends of the two water pipes located in the same cleaning tank. A saw groove is opened at the upper end of each cleaning tank. A support plate and rinsing blades are fixedly connected between the upper surfaces of the two cleaning tanks.
[0011] Furthermore, temperature sensors are fixedly connected between the front and rear sides of the passivation tank, and the temperature sensors are bidirectionally electrically connected to the controller to detect the temperature of the passivation solution.
[0012] Furthermore, handrails are fixedly connected to both the front and rear ends of the connecting seat, and conductive plates are respectively located at the lower end of the handrails of the same connecting seat, which facilitates the transfer of the hanging device.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This tool surface composite strengthening device has the following advantages: The blade is chrome-plated inside the chrome plating tank. After chrome plating, the hanger is placed on the top of the drain plate to drain water, reducing the waste of electroplating solution. Then it is rinsed with a double cleaning of clean water and distilled water to avoid contaminating the passivation solution. After passivation, it is rinsed again. The two processes of chrome plating and passivation improve the wear resistance and corrosion resistance of the blade. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the connector of this utility model; Figure 3 This is an exploded structural diagram of the hanger assembly, consisting of the connecting seat and connecting pipes, etc., according to this utility model. Figure 4 This is an exploded structural diagram of the cathode assembly of this utility model; Figure 5 This is a schematic diagram of the structure of the anode assembly of this utility model; Figure 6 This is an enlarged structural diagram of point A in this utility model.
[0015] In the diagram: 1. Passivation tank, 2. Controller, 3. Chrome plating mechanism, 31. Chrome plating tank, 32. Drain plate, 33. Connecting seat, 34. Connecting pipe, 35. Cathode assembly, 351. Cathode seat, 352. Guide post, 353. Copper wire, 354. Copper ring, 36. Pressure plate, 37. Conductive plate, 38. Anode assembly, 381. Support rod, 382. Hook, 383. Anode plate, 4. Connecting plate, 5. Handrail, 6. Hexagonal column, 7. Cleaning mechanism, 71. Cleaning tank, 72. Water pipe, 73. Saw groove, 74. Support plate, 75. T-pipe, 8. Heating tube, 9. Temperature sensor, 10. Blade. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] Please see Figure 1-6 This embodiment provides a technical solution: a composite strengthening device for tool surfaces, including a passivation tank 1, a chromium plating mechanism 3, and a cleaning mechanism 7; Passivation tank 1: Heating tubes 8 are uniformly distributed and fixedly connected to the lower end of its front inner wall. A chromium plating tank frame is fixedly connected to the left end of the bottom wall of passivation tank 1. Temperature sensors 9 are uniformly distributed and fixedly connected between the front and rear sides of passivation tank 1. Temperature sensors 9 are bidirectionally electrically connected to controller 2. Before electroplating, passivation solution (chromium anhydride) is poured into passivation tank 1. Controller 2 controls the heating tubes 8 to turn on, heating the passivation solution. Temperature sensors 9 detect the water temperature at corresponding locations and feed it back to controller 2. The average temperature detected by temperature sensors 9 is... The water temperature is set to approximately 50 degrees Celsius. Since the chromium plating tank 31 is generally a polypropylene tank with poor thermal conductivity, the distilled water is heated to a stable set temperature and maintained at that temperature for a period of time until the electroplating solution temperature is the same as the distilled water temperature before electroplating begins. After rinsing, the rack and blade 10 are placed at the right end of the passivation tank 1 and passivated by the passivation solution. The passivation treatment can form a protective film at the microcracks or pores in the chromium plating layer, preventing corrosive media from eroding the underlying base metal through these defects, thereby significantly improving the overall corrosion resistance of the blade 10. The chrome plating mechanism 3 includes a chrome plating tank 31, a connecting seat 33, connecting pipes 34, a cathode assembly 35, a pressure plate 36, a conductive plate 37, and an anode assembly 38. The chrome plating tank 31 is placed inside the chrome plating tank frame. The anode assembly 38 is arranged on the left side of the chrome plating tank 31. The front and rear sides of the connecting seat 33 are threaded with symmetrically distributed hexagonal prisms 6. The connecting seat 33 and the hexagonal prisms 6 are placed in the middle of the chrome plating tank 31. The middle of the connecting seat 33 is fixedly connected with evenly distributed connecting pipes 34. The upper end of the connecting seat 33 is bolted to the conductive plate 37. The lower end of each connecting pipe 34 is provided with a cathode assembly 35. The cathode assemblies 35 are all arranged in conjunction with the conductive plates 37. The lower ends of the frontmost, rearmost, and middle connecting pipes 34 are all... The system includes connecting plates 4, with pressure plates 36 bolted between them. Cathode assemblies 35 are fitted to the pressure plates 36. Evenly distributed blades 10 are positioned between the cathode assemblies 35 and the pressure plates 36. Anode assemblies 38 and conductive plates 37 are connected to an external DC power supply. The chrome plating mechanism 3 also includes a drain plate 32, located on the upper right side of the chrome plating tank 31. The cathode assembly 35 includes a cathode seat 351, guide posts 352, copper wires 353, and copper rings 354. Cathode seats 351 are threaded to the lower end of connecting pipes 34. Copper wires 353 are arranged along the edges of the cathode seats 351. A groove is provided at the left end of the cathode seat 351, and a copper ring 354 is fixedly connected inside the groove. The left end of the copper wire 353 is located on the same cathode seat 351. The right side of the copper ring 354 of the 1 is in contact with the groove. The middle of each groove is provided with a guide post 352. The guide post 352 passes through the inner ring of the copper ring 354 located in the same cathode seat 351. Copper wires are placed inside the connecting pipe 34. The lower end of the copper wire is fixedly connected to the copper wire 353 adjacent to the lower end. The upper end of the copper wire is in contact with the lower surface of the conductive plate 37. The round holes of the blade 10 are inserted into the outside of the guide post 352. The left end of the guide post 352 is inserted into the inside of the pressure plate 36. The blade 10 is located between the cathode seat 351 and the pressure plate 36. The anode assembly 38 includes a support rod 381, a hook 382 and an anode plate 383. The support rod 381 is placed on the upper left side of the chrome plating tank 31. The middle of the support rod 381 is clamped with evenly distributed hooks 382. An anode plate 383 is hung between the lower ends of hooks 382. The anode plate 383 is configured to work with an external DC power supply. Handles 5 are fixedly connected between the front and rear ends of the connector 33. Conductive plates 37 are located at the lower ends of the handles 5 of the same connector 33. When assembling the hanger, copper wire 353 is passed through the wire hole on the edge of the cathode seat 351. A copper ring 354 is fitted over the outside of the guide post 352. The copper ring 354 is fixed with fluororubber sealant. At the same time, the wire hole is also sealed with fluororubber sealant. Fluororubber sealant is corrosion resistant and prevents the electroplating solution from seeping into the wire hole during the electroplating process. The copper wire 353 is twisted and connected to the copper wire. The copper wire is passed into the inside of the connecting pipe 34. The cathode seat 351 is tightened. The upper end of the copper wire is folded flat and fits against the upper surface of the connector 33.The conductive plate 37 is fixed to the upper surface of the connecting seat 33 by bolts. The upper ends of the copper wires are all in contact with the lower surface of the conductive plate 37. The conductive plate 37 can be a copper conductive plate. When installing the blade, the round hole at the upper end of the blade 10 is passed through the guide post 352. After all the guide posts 352 are filled with blades 10, the pressure plate 36 is installed, and the conductive plate 37 is connected to the connecting plate 4 using polytetrafluoroethylene bolts. The blade 10 is pressed tightly by the pressure plate 36, and the blade 10 is in close contact with the copper ring 354 to achieve circuit conduction. After chrome plating, the power is first turned off, and then the hanger composed of the connecting seat 33, connecting pipe 34, cathode assembly 35, pressure plate 36 and conductive plate 37 is placed on the upper end of the drain plate 32, so that the electroplating solution attached to the hanger and the surface of the blade 10 falls back into the interior of the chrome plating tank 31, reducing the waste of electroplating solution. Cleaning mechanism 7: Located at the upper end of passivation tank 1, cleaning mechanism 7 includes cleaning tank 71, water pipes 72, saw-shaped grooves 73, support plate 74, and T-shaped pipe 75. Two cleaning tanks 71 are provided, each fixedly connected to the middle of passivation tank 1. Water pipes 72 are symmetrically distributed between the front and rear side walls of each cleaning tank 71. Evenly distributed nozzles are provided in the middle of each water pipe 72. A T-shaped pipe 75 is fixedly connected between the right ends of the two water pipes 72 located in the same cleaning tank 71. Saw-shaped grooves 73 are provided at the upper end of each cleaning tank 71. A support plate 74 is fixedly connected between the upper surfaces of the two cleaning tanks 71. The drained hanger is manually transferred to the support plate. At the upper end of the support rod 381, the blade 10 is placed inside the cleaning tank 71 on the left. Ordinary clean water is introduced into the three-way pipe 75 on the left. The clean water is rinsed on both sides of the blade 10 through the nozzles of the two water pipes 72. After rinsing for a period of time, the blade 10 is transferred to the cleaning tank 71 on the right. Distilled water is introduced into the three-way pipe 75 on the right. The blade 10 is rinsed again with distilled water. The connecting pipes 34 are respectively inserted into the interior of the adjacent saw grooves of the saw groove 73 to reduce the splashing of water mist during rinsing and to prevent impurities or minerals in the clean water from adhering to the surface of the blade 10. The clean water rinsing time is three times that of the distilled water rinsing time, which reduces the waste of distilled water and lowers costs.
[0018] The system also includes a controller 2, which is placed in front of the passivation tank 1. The input of the controller 2 is electrically connected to an external power source, and the input of the heating tube 8 is electrically connected to the output of the controller 2.
[0019] The working principle of the tool surface composite strengthening device provided by this utility model is as follows: When assembling the fixture, the copper wire 353 is passed through the wire hole on the edge of the cathode seat 351. A copper ring 354 is fitted on the outside of the guide post 352. The copper ring 354 is fixed with fluororubber sealant. At the same time, the wire hole is also sealed with fluororubber sealant. Fluororubber sealant has corrosion resistance to prevent electroplating solution from seeping into the wire hole during the electroplating process. The copper wire 353 is tightened to the copper wire. The copper wire is then passed into the interior of the connecting pipe 34. The cathode seat 351 is tightened (the connecting pipe 34 is a polytetrafluoroethylene connecting pipe, and the cathode seat 351 is a polytetrafluoroethylene cathode seat. Polytetrafluoroethylene has good corrosion resistance to prevent the connecting pipe 34 and the cathode seat 351 from being corroded). The upper end of the copper wire is bent... The conductive plate 37 is fixed to the upper surface of the connector 33 by bolts, with the upper ends of the copper wires contacting the lower surface of the conductive plate 37. The conductive plate 37 can be made of copper. When inserting the blade, the round hole at the upper end of the blade 10 is passed through the guide post 352. After all guide posts 352 have the blade 10 inserted, the pressure plate 36 is inserted, and the conductive plate 37 is connected to the connector 4 using PTFE bolts. The blade 10 is pressed tightly by the pressure plate 36. (During daily use, when the blade 10 is bent down to only the uppermost section, it is usually replaced with a new blade 10. The blade edge is also chrome-plated here; no electroplating is performed on the rest of the blade edge, so the impact on performance is minimal.) The blade 10 is in close contact with the copper ring 354, achieving circuit conductivity. Before electroplating, passivation solution, chromic anhydride, is poured into passivation tank 1. Controller 2 controls heating tube 8 to turn on, heating the passivation solution. Temperature sensor 9 detects the water temperature at the corresponding location and feeds it back to controller 2. The average temperature detected by temperature sensor 9 is the water temperature. Distilled water is heated to approximately 50 degrees Celsius. Since chrome plating tank 31 is generally a polypropylene tank with poor thermal conductivity, the distilled water is heated to a stable set temperature and maintained at that temperature for a period of time until the electroplating solution temperature is the same as the distilled water temperature before electroplating begins. During electroplating, the assembly consisting of connector 33 and connector pipe 34 is placed in the upper middle part of chrome plating tank 31 via handle 5. The alligator clip of the anode wire of the external DC power supply is clamped at the upper end of anode plate 383. Anode plate 383 is optional. Using a lead-tin alloy, the alligator clip of the cathode wire of the external DC power supply is clamped at the upper end of the conductive plate 37. During electroplating, the current forms a loop along the external DC power supply - anode plate 383 - electroplating solution - blade 10 - copper ring 354 - copper wire 353 - copper wire - conductive plate 37 - external DC power supply. Trivalent chromium in the electroplating solution adheres to the surface of the blade 10 to complete the chromium plating. The chromium plating time is determined according to actual production. After chromium plating, the power is first turned off, and then the hanger (hereinafter referred to as the hanger) composed of the connecting seat 33, connecting pipe 34, cathode assembly 35, pressure plate 36 and conductive plate 37 is placed at the upper end of the drain plate 32, so that the electroplating solution adhering to the hanger and the surface of the blade 10 falls back into the interior of the chromium plating tank 31, reducing the waste of electroplating solution. (The hanger is placed in the middle of the chromium plating tank 31.)The distance between the blade 10 and the anode plate 383 is small. The volume of the electroplating solution between the blade 10 and the anode plate 383 in the chromium plating tank 31 remains basically unchanged, which is equivalent to the resistance of the electroplating solution remaining basically unchanged. Therefore, even if the volume of the chromium plating tank 31 is large, the electroplating solution on the right side of the blade 10 is more than that on the left side, and the power consumption does not change much. After draining, the hanger is manually transferred to the upper end of the support rod 381. The blade 10 is placed inside the cleaning tank 71 on the left. Ordinary clean water is introduced into the three-way pipe 75 on the left. The clean water is rinsed on both sides of the blade 10 through the nozzles of the two water pipes 72. After rinsing for a period of time, the blade 10 is transferred to the cleaning tank 71 on the right. Distilled water is introduced into the three-way pipe 75 on the right. The blade 10 is rinsed again with distilled water. Connecting pipes 34 are inserted into the interior of adjacent saw cuts in the saw groove 73 to reduce water spray and prevent impurities or minerals from adhering to the blade 10 surface. The water rinsing time is three times that of the distilled water rinsing time, reducing waste and lowering costs. After rinsing, the rack and blade 10 are placed at the right end of the passivation tank 1 for passivation with a passivation solution. Passivation treatment forms a protective film at microcracks or pores in the chromium plating layer, preventing corrosive media from eroding the underlying base metal and significantly improving the overall corrosion resistance of the blade 10. After passivation, the blade 10 is rinsed again in the cleaning tank 71 with both water and distilled water to remove the passivation solution.
[0020] It is worth noting that the controller 2 disclosed in the above embodiments can be an STM8L152R8T6, the temperature sensor 9 can be a PT100 temperature sensor, and the controller 2 controls the operation of the temperature sensor 9 and the heating tube 8 using methods commonly used in the prior art.
[0021] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A tool surface composite strengthening device, characterized in that: It includes a passivation tank (1), a chromium plating mechanism (3), and a cleaning mechanism (7); Passivation tank (1): The lower end of its front inner wall is fixedly connected with a uniformly distributed heating tube (8), and the left end of the bottom wall of the passivation tank (1) is fixedly connected with a chrome plating tank frame. Chromium plating mechanism (3): It includes a chromium plating tank (31), a connecting seat (33), a connecting pipe (34), a cathode assembly (35), a pressure plate (36), a conductive plate (37), and an anode assembly (38). The chromium plating tank (31) is placed inside the chromium plating tank frame. The anode assembly (38) is arranged on the left side of the chromium plating tank (31). The front and rear sides of the connecting seat (33) are threaded with hexagonal columns (6) that are symmetrically distributed on the left and right. The connecting seat (33) and the hexagonal columns (6) are placed in the middle of the chromium plating tank (31). The middle of the connecting seat (33) is fixedly connected with evenly distributed connecting pipes (34). The upper end of the connector (33) is connected to a conductive plate (37) by bolts. The lower end of the connecting pipe (34) is provided with a cathode assembly (35). The cathode assembly (35) is configured to cooperate with the conductive plate (37). The lower end of the connecting pipe (34) at the front end, the rear end and the middle is provided with a connecting plate (4). The connecting plates (4) are connected to a pressure plate (36) by bolts. The cathode assembly (35) is configured to cooperate with the pressure plate (36). The cathode assembly (35) and the pressure plate (36) are provided with uniformly distributed blades (10). The anode assembly (38) and the conductive plate (37) are configured to cooperate with an external DC power supply. Cleaning mechanism (7): It is located at the top of the passivation tank (1).
2. The tool surface composite strengthening device according to claim 1, characterized in that: It also includes a controller (2), which is placed in front of the passivation tank (1). The input end of the controller (2) is electrically connected to an external power source, and the input ends of the heating tube (8) are electrically connected to the output end of the controller (2).
3. The tool surface composite strengthening device according to claim 1, characterized in that: The chrome plating mechanism (3) also includes a drain plate (32), which is located on the upper right side of the chrome plating tank (31).
4. The tool surface composite strengthening device according to claim 1, characterized in that: The cathode assembly (35) includes a cathode seat (351), a guide post (352), a copper wire (353), and a copper ring (354). The cathode seats (351) are all threaded to the lower end of the connecting pipe (34). Copper wires (353) are provided along the edges of each cathode seat (351). A groove is provided at the left end of each cathode seat (351), and a copper ring (354) is fixedly connected inside the groove. The left end of the copper wire (353) contacts the right side of the copper ring (354) located in the same cathode seat (351). A guide post is provided in the middle of each groove. 352), the guide post (352) passes through the inner ring of the copper ring (354) located in the same cathode seat (351), and copper wires are placed inside the connecting pipe (34). The lower end of the copper wire is fixedly connected to the copper wire (353) adjacent to the lower end. The upper end of the copper wire is in contact with the lower surface of the conductive plate (37). The round hole of the blade (10) is inserted into the outside of the guide post (352). The left end of the guide post (352) is inserted into the inside of the pressure plate (36). The blade (10) is located between the cathode seat (351) and the pressure plate (36).
5. The tool surface composite strengthening device according to claim 1, characterized in that: The anode assembly (38) includes a support rod (381), hooks (382) and an anode plate (383). The support rod (381) is placed on the upper left side of the chrome plating tank (31). The middle part of the support rod (381) is fitted with evenly distributed hooks (382). The lower ends of the hooks (382) are hung with the anode plate (383). The anode plate (383) is configured to cooperate with an external DC power supply.
6. The tool surface composite strengthening device according to claim 1, characterized in that: The cleaning mechanism (7) includes a cleaning tank (71), a water pipe (72), a saw groove (73), a support plate (74), and a three-way pipe (75). There are two cleaning tanks (71). Both cleaning tanks (71) are fixedly connected to the middle of the passivation tank (1). Water pipes (72) are symmetrically distributed on the left and right sides of the front and rear side walls of the cleaning tank (71). The middle of each water pipe (72) is provided with a uniformly distributed nozzle. A three-way pipe (75) is fixedly connected between the right ends of the two water pipes (72) located in the same cleaning tank (71). A saw groove (73) is opened at the upper end of each cleaning tank (71). A support plate (74) is fixedly connected between the upper surfaces of the two cleaning tanks (71).
7. The tool surface composite strengthening device according to claim 2, characterized in that: Temperature sensors (9) are fixedly connected between the front and rear sides of the passivation pool (1), and the temperature sensors (9) are bidirectionally electrically connected to the controller (2).
8. The tool surface composite strengthening device according to claim 1, characterized in that: Handrails (5) are fixedly connected between the front and rear ends of the connecting seat (33), and conductive plates (37) are located at the lower end of the handrails (5) of the same connecting seat (33).