Hydraulic forming die for impeller blade of centrifugal fan

Abstract

The utility model relates to the technical field of centrifugal fan impeller blade machining, and discloses a centrifugal fan impeller blade hydraulic forming die which comprises a working table, a lower die is fixedly connected to the top of the working table, supporting vertical plates are fixedly connected to the two sides of the top of the working table, and a top plate is fixedly connected to the tops of the two supporting vertical plates. An air cylinder is fixedly connected to the bottom of the top plate, an upper mold is fixedly connected to the output end of the air cylinder, a collecting box is arranged below the workbench, a filter screen is fixedly connected into the collecting box, a water pump is fixedly connected to the left side of the collecting box, and a water pumping pipe is fixedly connected to the input end of the water pump. According to the impeller blade cooling device, the impeller blade subjected to hydraulic forming can be rapidly cooled, workers can conveniently carry out next operation, water sprayed out by the spray head can be filtered and reused under the action of the drainage groove and the filter screen, and maximum resource utilization is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fan impeller blade processing, in particular to a centrifugal fan impeller blade hydraulic forming die. Background Art

[0002] A centrifugal fan is a common rotary power mechanical device used to compress or discharge gas (usually air) through the power generated by the centrifugal force of a rotating impeller. They are also called centrifugal fans or centrifugal ventilators. Centrifugal fans usually consist of an impeller, a drive device (usually a motor), a casing, and an outlet duct. Hydraulic molds are often used when making centrifugal fan impeller blades.

[0003] In the prior art, when making centrifugal fan blades, workers first burn them red, then use a mold to hydraulically form them, and then wait for them to cool and demold after forming. However, the blades cool very slowly and cannot be cooled and dissipated quickly, which is inconvenient for workers to take them. Therefore, a centrifugal fan impeller blade hydraulic forming mold is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a centrifugal fan impeller blade hydraulic forming mold, which aims to improve the problem that the hydraulically formed impeller blades cannot be quickly cooled and dissipated in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hydraulic forming mold for centrifugal fan impeller blades, comprising a workbench, a lower mold is fixedly connected to the top of the workbench, support vertical plates are fixedly connected to both sides of the top of the workbench, the tops of the two support vertical plates are fixedly connected to top plates, the bottoms of the top plates are fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to the upper mold, a collecting box is arranged below the workbench, a filter is fixedly connected inside the collecting box, a water pump is fixedly connected to the left side of the collecting box, the input end of the water pump is fixedly connected to a water suction pipe, the end of the water suction pipe away from the water pump is fixedly connected to the front side of the collecting box, the output end of the water pump is fixedly connected to a water supply pipe, the end of the water supply pipe away from the water pump is fixedly connected to a plurality of nozzles, and a reciprocating ejecting assembly is arranged at the bottom of the workbench.

[0006] As a further description of the above technical solution:

[0007] The reciprocating ejecting assembly includes a fixed plate, the top of the fixed plate is fixedly connected to the bottom of the workbench, the rear side of the fixed plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a rotating rod, the front side of the rotating rod is fixedly connected to a disc, the front edge of the disc is fixedly connected to a thin rod, the outside of the thin rod is slidably connected to a hollow shell, the top of the hollow shell is fixedly connected to a push rod, and the top of the push rod is fixedly connected to an upper ejecting plate.

[0008] As a further description of the above technical solution:

[0009] A drainage groove is provided on the top of the workbench, and the drainage groove is arranged on the outer periphery of the lower mold. A drainage port is provided inside the drainage groove, and a drainage pipe is fixedly connected to the bottom of the drainage port.

[0010] As a further description of the above technical solution:

[0011] The bottom of the workbench is fixedly connected with support columns on all sides.

[0012] As a further description of the above technical solution:

[0013] The nozzles are arranged on the front and rear sides of the lower mold.

[0014] As a further description of the above technical solution:

[0015] The drain pipe is arranged on the top of the collection box.

[0016] As a further description of the above technical solution:

[0017] The front side of the top of the fixing plate is fixedly connected to a limiting block, and the inside of the limiting block is slidably connected to the outside of the push rod.

[0018] As a further description of the above technical solution:

[0019] The push rod passes through the workbench and is slidably connected to the interior of the lower mold.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, the nozzle is driven to work through the cooperation of the water pump, water pipe, water extraction pipe, filter, collection box, drainage trough, nozzle and other structures, so as to realize the rapid cooling of the impeller blades after hydraulic forming, and facilitate the workers to carry out the next operation. Under the action of the drainage trough and filter, the water sprayed from the nozzle can be filtered and reused, so as to realize the maximum utilization of resources.

[0022] 2. In the utility model, with the cooperation of the motor, turntable, rotating rod, limit block, push rod, upper top plate, thin rod, hollow shell and other structures, the hydraulically formed impeller blades are ejected, which solves the problem of inconvenience in taking out the impeller blades after forming and greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional schematic diagram of a hydraulic forming mold for centrifugal fan impeller blades proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of a drainage groove of a centrifugal fan impeller blade hydraulic forming mold proposed by the utility model;

[0025] Figure 3 The utility model is a schematic structural diagram of a push rod of a hydraulic forming die for centrifugal fan impeller blades.

[0026] Legend:

[0027] 1. Workbench; 2. Support plate; 3. Top plate; 4. Cylinder; 5. Upper mold; 6. Lower mold; 7. Drain trough; 8. Drain outlet; 9. Drain pipe; 10. Collection box; 11. Water pump; 12. Water pipe; 13. Nozzle; 14. Suction pipe; 15. Filter; 16. Fixed plate; 17. Motor; 18. Rotating rod; 19. Disc; 20. Thin rod; 21. Hollow shell; 22. Push rod; 23. Limit block; 24. Upper plate; 25. Support column. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1 and Figure 2 The utility model provides an embodiment: a hydraulic forming mold for centrifugal fan impeller blades, including a workbench 1, a lower mold 6 is fixedly connected to the top of the workbench 1, support vertical plates 2 are fixedly connected to both sides of the top of the workbench 1, top plates 3 are fixedly connected to the tops of the two support vertical plates 2, cylinders 4 are fixedly connected to the bottom of the top plates 3, and an upper mold 5 is fixedly connected to the output end of the cylinder 4. A collecting box 10 is arranged below the workbench 1, a filter screen 15 is fixedly connected to the inside of the collecting box 10, a water pump 11 is fixedly connected to the left side of the collecting box 10, and a water pump 14 is fixedly connected to the input end of the water pump 11. The end of the tube 14 away from the water pump 11 is fixedly connected to the front side of the collecting box 10, the output end of the water pump 11 is fixedly connected to a water pipe 12, the end of the water pipe 12 away from the water pump 11 is fixedly connected to a plurality of nozzles 13, a reciprocating material pushing assembly is arranged at the bottom of the workbench 1, a drainage groove 7 is opened at the top of the workbench 1, the drainage groove 7 is arranged on the outer periphery of the lower mold 6, a drainage port 8 is opened inside the drainage groove 7, a drainage pipe 9 is fixedly connected to the bottom of the drainage port 8, support columns 25 are fixedly connected all around the bottom of the workbench 1, the nozzles 13 are arranged on the front and rear sides of the lower mold 6, and the drainage pipe 9 is arranged on the top of the collecting box 10.

[0030] Specifically, the water pump 11 plays a driving role, the suction pipe 14 plays a role in extracting water from the collection box 10, the water pipe 12 plays a role in transporting the water source to the nozzle 13, the nozzle 13 plays a role in spraying the water source onto the impeller blades to cool them, the drainage trough 7 plays a role in discharging the wastewater to the drainage port 8, and then transporting the wastewater from the drainage port 8 to the drainage pipe 9 and finally to the collection box 10. The collection box 10 plays a role in storing water and collecting filtered wastewater, and the filter screen 15 plays a role in filtering out impurities in the wastewater, so as to facilitate the recycling and secondary utilization of water resources.

[0031] Reference Figure 1 and Figure 3 The reciprocating ejection assembly includes a fixed plate 16, the top of the fixed plate 16 is fixedly connected to the bottom of the workbench 1, the rear side of the fixed plate 16 is fixedly connected to a motor 17, the output end of the motor 17 is fixedly connected to a rotating rod 18, the front side of the rotating rod 18 is fixedly connected to a disc 19, the front edge of the disc 19 is fixedly connected to a thin rod 20, the outside of the thin rod 20 is slidably connected to a hollow shell 21, the top of the hollow shell 21 is fixedly connected to a push rod 22, the top of the push rod 22 is fixedly connected to an upper ejection plate 24, the front side of the top of the fixed plate 16 is fixedly connected to a limiting block 23, the inside of the limiting block 23 is slidably connected to the outside of the push rod 22, and the push rod 22 passes through the workbench 1 and is slidably connected to the inside of the lower mold 6.

[0032] Specifically, the motor 17 drives the rotating rod 18 to rotate, the rotating rod 18 connects the disc 19 and the thin rod 20, the hollow shell 21 limits the thin rod 20, changes its motion trajectory, and drives the push rod 22 to reciprocate up and down, the limit block 23 limits the push rod 22, and the push rod 22 connects the upper top plate 24. The workbench 1 and the lower mold 6 should both have a slide groove for the push rod 22 to slide.

[0033] Working principle: workers place the red-hot softened impeller blades in the lower mold 6 through the clamp, start the cylinder 4 to drive the lower mold 5 to perform hydraulic treatment on the impeller blades. After the impeller blades are hydraulically formed, they need to be demoulded and ejected. Start the motor 17 to drive the rotating rod 18 to rotate, and at the same time drive the rotating disk 19 and the thin rod 20 to rotate. Under the limit of the hollow shell 21 on the thin rod 20, the thin rod 21 changes its motion trajectory, drives the hollow shell 21 and the push rod 22 to reciprocate up and down, and then drives the upper top plate 24 to eject the hydraulically formed impeller blades. The impeller blades must be red-hot and softened before hydraulic molding. Therefore, they need to be cooled after the hydraulic molding is completed. At this time, start the The dynamic water pump 11 drives the suction pipe 14 to pump out the water inside the collection box 10 and transport it to the water delivery pipe 12, and then the water delivery pipe 12 transports it to the nozzle 13 to cool the impeller blades that are pushed out and reverse cooling. The cooled wastewater flows into the drain pipe 9 through the drain port 8 inside the drain trough 7, and the wastewater is transported to the inside of the collection box 10 through the drain pipe 9. The wastewater will wash away some impurities on the workbench and be discharged into the collection box 10 through the drain pipe 9. In order to prevent impurities from clogging the suction pipe 14, the filter 15 will filter out the impurities. The filtered water is again transported to the nozzle 13 through the suction pipe 14 and the water delivery pipe 12 to cool the impeller blades, thereby achieving the recycling of water resources.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A centrifugal fan impeller blade hydraulic forming mold, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a lower mold (6), the top of the workbench (1) is fixedly connected to supporting upright plates (2) on both sides, the tops of the two supporting upright plates (2) are fixedly connected to a top plate (3), the bottom of the top plate (3) is fixedly connected to a cylinder (4), the output end of the cylinder (4) is fixedly connected to an upper mold (5), a collection box (10) is arranged below the workbench (1), a filter screen (15) is fixedly connected to the inside of the collection box (10), and the collection box (10) is fixedly connected to the filter screen (15). A water pump (11) is fixedly connected to the left side of the collecting box (10); a water pump (11) is fixedly connected to the input end of the water pump (11) with a water extraction pipe (14); one end of the water extraction pipe (14) away from the water pump (11) is fixedly connected to the front side of the collecting box (10); an output end of the water pump (11) is fixedly connected to a water delivery pipe (12); one end of the water delivery pipe (12) away from the water pump (11) is fixedly connected to a plurality of nozzles (13); and a reciprocating material ejecting assembly is provided at the bottom of the workbench (1).

2. A centrifugal fan impeller blade hydraulic forming mold according to claim 1, characterized in that: The reciprocating ejecting assembly comprises a fixed plate (16), the top of the fixed plate (16) is fixedly connected to the bottom of the workbench (1), the rear side of the fixed plate (16) is fixedly connected to a motor (17), the output end of the motor (17) is fixedly connected to a rotating rod (18), the front side of the rotating rod (18) is fixedly connected to a disc (19), the front edge of the disc (19) is fixedly connected to a thin rod (20), the outside of the thin rod (20) is slidably connected to a hollow shell (21), the top of the hollow shell (21) is fixedly connected to a push rod (22), and the top of the push rod (22) is fixedly connected to an upper ejecting plate (24).

3. The centrifugal fan impeller blade hydraulic forming mold according to claim 1, characterized in that: The top of the workbench (1) is provided with a drainage groove (7), the drainage groove (7) is arranged on the outer periphery of the lower mold (6), a drainage port (8) is provided inside the drainage groove (7), and a drainage pipe (9) is fixedly connected to the bottom of the drainage port (8).

4. The centrifugal fan impeller blade hydraulic forming mold according to claim 1, characterized in that: Support columns (25) are fixedly connected to the bottom of the workbench (1) on all sides.

5. The centrifugal fan impeller blade hydraulic forming mold according to claim 1, characterized in that: The nozzle (13) is arranged on the front and rear sides of the lower mold (6).

6. The centrifugal fan impeller blade hydraulic forming mold according to claim 3, characterized in that: The drainage pipe (9) is arranged on the top of the collection box (10).

7. The centrifugal fan impeller blade hydraulic forming mold according to claim 2, characterized in that: The front side of the top of the fixed plate (16) is fixedly connected to a limiting block (23), and the inside of the limiting block (23) is slidably connected to the outside of the push rod (22).

8. The centrifugal fan impeller blade hydraulic forming mold according to claim 2, characterized in that: The push rod (22) passes through the workbench (1) and is slidably connected to the inside of the lower mold (6).

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