Water pump impeller mold for forming water pump impeller

Abstract

The water pump impeller mold for forming the water pump impeller comprises a supporting table, an upper mold body and a lower mold body, supporting plates are arranged on the left side and the right side of the lower surface of the supporting table, and supporting legs are arranged on the lower surfaces of the supporting plates on the left side and the right side; a fixing opening is formed in the upper surface of the supporting table in a penetrating mode, a cooling mechanism is arranged on the right side of the supporting plate, a driving mechanism is arranged on the upper surface of the fixing frame, and a flow control device is arranged in the cooling mechanism. According to the water pump impeller mold for forming the water pump impeller, the mold is cooled through the heat conduction performance of cooling water, the cooling speed is high, cooling is uniform, the production efficiency is improved, automatic supply and control of the cooling water are achieved through a water level sensor and a controller, stable operation of a cooling system is ensured, manual intervention is reduced, and the production cost is reduced. And water vapor generated in the cooling process is discharged outdoors through the exhaust movable pipe, so that the water vapor is prevented from being accumulated in the device, and the operation environment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pump impeller molds, in particular to a water pump impeller mold for forming a water pump impeller. BACKGROUND

[0002] The water pump impeller is a core component of the water pump, mainly used for converting mechanical energy into kinetic energy and pressure energy of the fluid, and the blades on the water pump impeller play a major role. The shape and size of the water pump impeller are closely related to the performance of the water pump. The water pump impeller can be generally divided into single-suction and double-suction types. The single-suction impeller is single-side water suction, and small-flow water pump impellers are mostly of this type. The double-suction impeller is two-side water suction, and large-flow water pump impellers all adopt double-suction impellers.

[0003] At present, the water pump impeller is mainly made by guiding the raw material into the mold and then cooling to form. When the water pump impeller mold is cooled, it is generally cooled by cooling water. The cooling water is a consumable, and manual addition of the cooling water is often required. When the cooling water is added, the process is relatively cumbersome, and it may cause instability of the cooling system. Based on this, a water pump impeller mold for forming a water pump impeller is proposed. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a water pump impeller mold for forming a water pump impeller, which has the advantages of automatic supply and control of cooling water, ensuring stable operation of the cooling system, reducing manual intervention, improving the reliability of the system, and solving the problem of instability of the cooling system caused by the cooling water, which is a consumable, and manual addition of the cooling water is often required. When the cooling water is added, the process is relatively cumbersome.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a water pump impeller mold for forming a water pump impeller, comprising a support table, an upper mold and a lower mold, the left and right sides of the lower surface of the support table are provided with support plates, the front and rear sides of the lower surface of the support plates on the left and right sides are provided with support feet, the upper surface of the support table is provided with a fixing frame, the upper surface of the support table is provided with a fixing port, the right side of the support plate on the right side is provided with a cooling mechanism, the upper surface of the fixing frame is provided with a driving mechanism, and the cooling mechanism is provided with a flow control device capable of effectively detecting the water output and effectively controlling the cooling speed; The cooling mechanism comprises a water storage tank arranged on the right side of the right support plate, and a cooling frame is arranged on the opposite side of the support plates on the left and right sides. A water level sensor is arranged on the left side wall of the inner cavity of the cooling frame. A controller is arranged on the right side of the fixing frame. A water pump is arranged on the right side of the water storage tank. The water inlet end of the water pump extends to the inside through the pipeline penetrating the water storage tank. The fixing port is located on the longitudinal central axis of the support table. The cooling mechanism comprises a first connecting pipe fixed at the water outlet end of the water pump, an electromagnetic valve is communicated with the outer side of the end of the first connecting pipe away from the water pump, a second connecting pipe is communicated with the inner side of the electromagnetic valve, a water spraying part extending into the cooling frame is arranged at the end of the second connecting pipe away from the electromagnetic valve, a water inlet pipe is communicated with the right side of the upper surface of the water storage tank, and a pipe cover is threadedly connected to the outer side of the top end of the water inlet pipe.

[0006] Further, the driving mechanism comprises a first electric push rod arranged on the upper surface of the fixing frame, the output shaft of the first electric push rod is slidably connected to the outside of the fixing frame and extends into the inside of the fixing frame, the outer side of the output shaft of the first electric push rod is fixedly connected to the upper surface of the upper mold, telescopic rods are arranged on the left and right sides of the upper surface of the fixing frame, the bottom ends of the telescopic rods on the left and right sides are slidably connected to the inside of the fixing frame, and the bottom ends of the telescopic rods on the left and right sides are fixedly connected to the left and right sides of the upper surface of the upper mold.

[0007] Further, the driving mechanism further comprises connecting columns arranged on the outer sides of the output shafts of the second electric push rods on the left and right sides, the opposite sides of the connecting columns on the left and right sides are fixedly connected to the left and right sides of the lower mold, connecting rods are arranged on the front and back surfaces of the lower mold, a push plate is slidably connected to the inside of the lower mold, a push rod is arranged on the lower surface of the push plate, a handle is arranged at the bottom end of the push rod, a sliding hole is formed in the lower surface of the lower mold, the push rod is slidably connected to the inside of the sliding hole, and the gap is matched, a non-slip layer is arranged on the outer side of the handle, the non-slip layer is a rubber layer, and the gap between the push plate and the lower mold is matched.

[0008] Further, the telescopic rod comprises a first sliding rod, a second sliding rod is slidably connected to the inside of the first sliding rod, and an exhaust movable pipe is communicated with the left side of the upper surface of the frame cover.

[0009] Further, a liquid injection movable pipe is communicated with the right side of the upper surface of the upper mold.

[0010] Further, the water level sensor, the water pump and the electromagnetic valve are electrically connected to the controller through wires.

[0011] Further, the water spraying part comprises a three-way pipe fixedly communicated with the second connecting pipe, a gap is formed in the front and back side walls of the inner cavity of the cooling frame, two water spraying pipes fixedly communicated with the three-way pipe are arranged on the left side of the three-way pipe and extend into the two gaps, a plurality of water spraying holes are formed in the opposite sides of the two water spraying pipes, and a spraying head is fixed in each water spraying hole.

[0012] Further, the flow control device comprises a base fixed to the inner top wall of the water storage tank, a booster mechanism is arranged in the base, two movable rods are rotatably connected between the front and rear side walls of the inner cavity of the water storage tank through bearings, a first fixed pulley is fixed to the outer surface of each movable rod, the two first fixed pulleys are located at the lower part of the water storage tank, a stable rod is rotatably connected between the front and rear side walls of the inner cavity of the water storage tank through a bearing, the stable rod is located at the left side of the booster mechanism, a second fixed pulley is fixed to the outer surface of the stable rod, the outer surface of the booster mechanism is wound with a displacement rope and a pulling rope, the displacement rope passes through the second fixed pulley, the pulling rope passes through the two first fixed pulleys, the opposite side of the displacement rope and the pulling rope is fixed with a suspension ball, a plurality of second water pressure sensors are symmetrically arranged on the outer surface of the suspension ball, the plurality of second water pressure sensors are close to the upper side of the suspension ball, and a first water pressure sensor is fixed to the inner bottom wall of the water storage tank.

[0013] Further, the booster mechanism comprises a first encoder fixed to the rear side wall of the base, a transmission rod is fixed to the output end of the first encoder, a first roller is fixed to the outer surface of the transmission rod, two mounting grooves are formed in the right side of the first roller, an electric push rod extending out of each mounting groove is fixed in each mounting groove, a servo motor is fixed to the front side wall of the base, a drive rod penetrating through the front side wall of the base is fixed to the output shaft of the servo motor, a connecting block is fixed to the outer surface of the drive rod, a second roller is fixed to the outer surface of the connecting block, a connecting frame rod is fixed to the right side of the first roller and between the two electric push rods, the connecting frame rod penetrates through the second roller and is rotatably connected with the left side wall of the second roller through a bearing, a rotating frame is rotatably connected to the outer surface of the connecting frame rod through a bearing, the rotating frame is located in the second roller, a driving gear is fixed to the inner side of the rotating frame, a plurality of planet rods are rotatably connected to the inner side of the rotating frame through bearings, a planet gear meshing with the driving gear is fixed to the outer surface of each planet rod, an inner ring gear is fixed to the inner wall of the second roller, the inner ring gear meshes with the plurality of planet gears, a second encoder is fixed to the left side of the connecting block and located in the inner side of the second roller, and the output end of the second encoder is fixed to the right side of the rotating frame.

[0014] Further, the outer surfaces of the first roller and the second roller are respectively fixed with a pay-off roller and a take-up roller, and the outer surfaces of the pay-off roller and the take-up roller are respectively provided with the pulling rope and the displacement rope.

[0015] Compared with the prior art, the technical scheme of the present application has the following beneficial effects: 1. The water pump impeller mold for forming a water pump impeller, the mold is cooled by the heat conduction performance of cooling water, the cooling speed is fast and uniform, the cooling time of the impeller can be effectively shortened, the production efficiency is improved, the automatic supply and control of the cooling water are realized through the water level sensor and the controller, the stable operation of the cooling system is ensured, the manual intervention is reduced, the reliability of the system is improved, the water vapor generated in the cooling process is discharged to the outdoor through the exhaust movable pipe, the accumulation of the water vapor in the device is avoided, and the operating environment is improved.

[0016] 2. The water pump impeller mold for forming a water pump impeller, after the impeller mold is cooled, the first electric push rod can be started to drive the lower mold and the upper mold to move upwards and pass through the fixed port and move to the upper side of the fixed port, then the second electric push rod on the left and right sides is started at the same time, the lower mold moves downwards at the lower side of the upper mold, then the handle is pushed upwards to drive the push plate to move upwards, demolding is realized, and the convenience of demolding is improved.

[0017] 3. The water pump impeller mold for forming a water pump impeller, the height of the water surface falling can be recorded by recording the distance of the floating ball moving, so that the water output is effectively recorded, the purpose of controlling the cooling speed is realized by controlling the output of the water pump, and the control of the cooling speed can further improve the forming quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a structural schematic view of the present application; Fig. 2 It is a connection structure schematic view of the support table and the fixed frame of the present application; Fig. 3 It is a cooling mechanism schematic view of the present application; Fig. 4 It is a driving mechanism schematic view of the present application; Fig. 5 It is an internal structure schematic view of the lower mold of the present application; Fig. 6 It is a structure schematic view of the power assisting mechanism of the present application.

[0019] In the figure: 1 support table, 2 upper mold, 3 lower mold, 4 support plate, 5 support foot, 6 fixing frame, 7 fixing port, 8 cooling mechanism, 801 water storage tank, 802 cooling frame, 803 water level sensor, 804 controller, 805 water pump, 806 first connecting pipe, 807 electromagnetic valve, 808 second connecting pipe, 809 water inlet pipe, 810 pipe cover, 9 driving mechanism, 901 first electric push rod, 902 telescopic rod, 903 frame cover, 904 second electric push rod, 905 connecting column, 906 connecting rod, 907 push plate, 908 push rod, 909 handle, 910 sliding hole, 10 liquid injection pipe movable pipe, 11 exhaust movable pipe, 12 flow control device, 121 base, 122 power assisting mechanism, 1221 first level encoder, 1222 transmission rod, 1223 first level roller, 1224 electric push rod, 1225 servo motor, 1226 driving rod, 1227 connecting frame rod, 1228 rotating frame, 1229 second level encoder, 123 first level fixed pulley, 124 second level fixed pulley, 125 floating ball, 126 let go of the rope, 127 pull rope, 128 first level water pressure sensor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-2 In the embodiment, a water pump impeller mold for forming a water pump impeller includes a support table 1, an upper mold 2 and a lower mold 3. The left and right sides of the lower surface of the support table 1 are each provided with a support plate 4. The front and rear sides of the lower surface of each of the left and right support plates 4 are each provided with a support foot 5. The upper surface of the support table 1 is provided with a fixing frame 6. The upper surface of the support table 1 is provided with a fixing port 7. The right side of the right support plate 4 is provided with a cooling mechanism 8. The cooling mechanism 8 realizes automatic replenishment and control of cooling water, ensures stable operation of the cooling system, reduces manual intervention, improves the reliability of the system, and the upper surface of the fixing frame 6 is provided with a driving mechanism 9. The driving mechanism 9 facilitates demolding. The cooling mechanism 8 is provided with a flow control device 12 that can effectively detect the water output to effectively control the cooling speed.

[0022] In the embodiment, the upper surface of the right side of the upper mold 2 is communicated with the liquid injection pipe movable pipe 10. The fixing port 7 is located on the longitudinal center axis of the support table 1.

[0023] It should be noted that the upper mold 2 and the lower mold 3 are made of metal and have heat conduction performance. When cooling, the generated water vapor is discharged to the outside through the exhaust movable pipe 11. The top end of the exhaust movable pipe 11 can extend to the outside, avoiding the accumulation of water vapor inside the device and improving the operating environment.

[0024] Please refer to Fig. 3 In order to realize automatic supply and control of cooling water, ensure stable operation of the cooling system, reduce manual intervention, and improve the reliability of the system, in the embodiment, the cooling mechanism 8 includes a water storage tank 801 arranged on the right side of the right side support plate 4. The opposite side of the left and right side support plates 4 is provided with a cooling frame 802. The left side wall of the inner cavity of the cooling frame 802 is provided with a water level sensor 803. The right side of the fixed frame 6 is provided with a controller 804. The right side of the water storage tank 801 is provided with a water pump 805. The water inlet end of the water pump 805 penetrates the water storage tank 801 through a pipeline and extends to the inside. The bottom of the cooling frame 802 is fixedly connected with a drain pipe. A ball valve is arranged on the drain pipe. When not in use, in order to avoid excessive moisture in the cooling frame 802 leading to bacterial growth, the water in the cooling frame 802 can be discharged through the ball valve.

[0025] In the embodiment, the cooling mechanism 8 includes a first connecting pipe 806 fixed to the water outlet end of the water pump 805. The outer side of the end of the first connecting pipe 806 away from the water pump 805 is connected with an electromagnetic valve 807. The inside of the electromagnetic valve 807 is connected with a second connecting pipe 808. The end of the second connecting pipe 808 away from the electromagnetic valve 807 is provided with a water spraying part extending into the cooling frame 802. The right side of the upper surface of the water storage tank 801 is connected with a water inlet pipe 809. The outer side of the top end of the water inlet pipe 809 is threadedly connected with a pipe cover 810. The water level sensor 803, the water pump 805 and the electromagnetic valve 807 are electrically connected with the controller 804 through wires.

[0026] Further, the water spraying part includes a three-way pipe fixedly connected with the second connecting pipe 808. The front and rear side walls of the inner cavity of the cooling frame 802 are both provided with a clearance slot. The left side of the three-way pipe is fixedly connected with two water spraying pipes penetrating the right side wall of the cooling frame 802 and extending into the two clearance slots, respectively. The opposite sides of the two water spraying pipes are both provided with a plurality of water spraying holes. Each water spraying hole is fixed with a spray head. Water is transmitted to the three-way pipe through the second connecting pipe 808. The three-way pipe simultaneously transmits water to the two water spraying pipes, realizing uniform water spraying to the mold and improving the cooling quality.

[0027] It should be noted that the water level sensor 803 arranged on the left side wall of the inner cavity of the cooling frame 802 can detect the water level inside the cooling frame 802. When the water level inside the cooling frame 802 is lower than the water level sensor 803, the water level sensor 803 senses and sends a signal to the controller 804, and the controller 804 opens the electromagnetic valve 807 and the water pump 805, and then the water inside the water storage tank 801 can be pumped into the inside of the cooling frame 802 to realize continuous water cooling. When the water level inside the cooling frame 802 is higher than the water level sensor 803, the water level sensor 803 senses and sends a signal to the controller 804, and the controller 804 closes the electromagnetic valve 807 and the water pump 805. The water storage tank 801 can store a large amount of cooling water, realize automatic replenishment and control of cooling water, ensure stable operation of the cooling system, reduce manual intervention, and improve the reliability of the system.

[0028] Please refer to Figs. 4-5 , in order to facilitate demolding, the driving mechanism 9 in the embodiment includes a first electric push rod 901 arranged on the upper surface of the fixed frame 6. The outer side of the output shaft of the first electric push rod 901 slides through the fixed frame 6 and extends into the inside of the fixed frame 6. The outer side of the output shaft of the first electric push rod 901 is fixedly connected with the upper surface of the upper mold 2. The left and right sides of the upper surface of the fixed frame 6 are provided with telescopic rods 902. The bottom ends of the left and right telescopic rods 902 extend through the fixed frame 6 and extend into the inside of the fixed frame 6. The bottom ends of the left and right telescopic rods 902 are fixedly connected with the left and right sides of the upper surface of the upper mold 2. The outer side of the upper mold 2 is provided with a frame cover 903. The left and right sides of the upper surface of the frame cover 903 are provided with second electric push rods 904. The outer sides of the output shafts of the left and right second electric push rods 904 slide through the frame cover 903 and extend to the lower side of the frame cover 903.

[0029] In the embodiment, the left and right second electric push rods 904 are started at the same time, and the output shafts of the left and right second electric push rods 904 move upward synchronously, which can drive the lower mold 3 to move upward, so that the lower surface of the upper mold 2 is in close contact with the upper surface of the lower mold 3. Then the movable pipe 10 of the liquid injection pipe transports the casting liquid into the upper mold 2 and the lower mold 3.

[0030] The driving mechanism 9 in this embodiment further comprises connecting columns 905 arranged outside the output shafts of the left and right second electric push rods 904, the opposite sides of the left and right connecting columns 905 are fixedly connected with the left and right sides of the lower mold 3, the front and back surfaces of the lower mold 3 are provided with connecting rods 906, the inside of the lower mold 3 is slidably connected with a push plate 907, the lower surface of the push plate 907 is provided with a push rod 908, the bottom end of the push rod 908 is provided with a handle 909, the lower surface of the lower mold 3 is provided with a sliding hole 910, the push rod 908 is slidably connected inside the sliding hole 910 and matched with a gap, the telescopic rod 902 comprises a first sliding rod, the inside of the first sliding rod is slidably connected with a second sliding rod, the left side of the upper surface of the frame cover 903 is communicated with an exhaust movable pipe 11, the push plate 907 is matched with a gap of the lower mold 3, the outer side of the handle 909 is provided with an anti-skid layer, and the anti-skid layer is a rubber layer.

[0031] It should be noted that after the impeller mold is completed and cooled, the product is completely solidified, the first electric push rod 901 is started, the lower mold 3 and the upper mold 2 are driven to move upwards and pass through the fixed port 7, and are moved to the upper side of the fixed port 7, at this time, the left and right second electric push rods 904 are started at the same time, the lower mold 3 is moved downwards at the lower side of the upper mold 2, and the lower mold 3 and the upper mold 2 are further separated, finally, the handle 909 is pushed upwards, the push plate 907 is driven to move upwards, and demolding is realized.

[0032] Please refer to Fig. 1 , 3 and Fig. 6In order to effectively control the flow, the flow control device 12 in the embodiment comprises a base 121 fixed with the inner top wall of the water storage tank 801, which is used to improve the overall stability, and a booster mechanism 122 arranged in the base 121, two movable rods are rotatably connected between the front and rear side walls of the inner cavity of the water storage tank 801 through bearings, and a primary fixed pulley 123 is fixed to the outer surface of each movable rod, the bearings can provide good stability for the two movable rods, and ensure the smooth rotation of the movable rods, further ensure the stable rotation of the two primary fixed pulleys 123, the two primary fixed pulleys 123 are located at the lower part of the water storage tank 801, a stable rod is rotatably connected between the front and rear side walls of the inner cavity of the water storage tank 801 through a bearing, and the stable rod is located at the left side of the booster mechanism 122, a secondary fixed pulley 124 is fixed to the outer surface of the stable rod, the connection parts of the primary fixed pulley 123 and the secondary fixed pulley 124 with the displacement rope 126 and the pull rope 127 are in arc shape, since the displacement rope 126 and the pull rope 127 wound on the outer surface of the booster mechanism 122 are not in the same plane, the primary fixed pulley 123 and the secondary fixed pulley 124 are needed to correct them, the connection parts of the displacement rope 126 and the pull rope 127 are in arc shape, which can provide enough offset space for the displacement rope 126 and the pull rope 127, thereby improving the stability of the floating ball 125, the displacement rope 126 and the pull rope 127 are wound on the outer surface of the booster mechanism 122, the displacement rope 126 passes through the secondary fixed pulley 124, the pull rope 127 passes through the two primary fixed pulleys 123, and the opposite side of the displacement rope 126 and the pull rope 127 is fixed with the floating ball 125, the outer surface of the floating ball 125 is fixed with a plurality of secondary water pressure sensors which are symmetrically distributed, the plurality of secondary water pressure sensors are close to the upper part of the floating ball 125, and the inner bottom wall of the water storage tank 801 is fixed with a primary water pressure sensor 128, when the secondary water pressure sensor on the floating ball 125 senses the water pressure, it means that the floating ball 125 has been basically immersed in water, at this time, the servo motor 1225 will be reversed to ensure that the floating ball 125 is in a suspended state.

[0033] It needs to be further explained that the assisting mechanism 122 comprises a primary encoder 1221 fixed with the rear side wall of the base 121, the primary encoder 1221 is used to record the number of rotations of the primary roller 1223, so as to indirectly judge the height of the water surface falling, the output end of the primary encoder 1221 is fixed with a transmission rod 1222, the outer surface of the transmission rod 1222 is fixed with the primary roller 1223, the right side of the primary roller 1223 is provided with two mounting grooves, and each mounting groove is fixed with an electric push rod 1224 extending out of the mounting groove. The left side of the secondary roller is provided with a plurality of positioning grooves matched with the output end of the electric push rod 1224, the front side wall of the base 121 is fixed with a servo motor 1225, the output shaft of the servo motor 1225 is fixed with a drive rod 1226 penetrating through the front side wall of the base 121, the outer surface of the drive rod 1226 is fixed with a connecting block, the outer surface of the connecting block is fixed with a secondary roller, the right side of the primary roller 1223 and between the two electric push rods 1224 is fixed with a connecting frame rod 1227, the connecting frame rod 1227 penetrates through the secondary roller and is rotationally connected with the left side wall of the secondary roller through a bearing, the outer surface of the connecting frame rod 1227 is rotationally connected with a rotating frame 1228 through a bearing, the rotating frame 1228 is located in the secondary roller, the outer surface of the connecting frame rod 1227 is fixed with a driving gear located in the inner side of the rotating frame 1228, the inner side of the rotating frame 1228 is rotationally connected with a plurality of planet rods through a bearing, the outer surface of each planet rod is fixed with a planet gear meshing with the driving gear, the inner wall of the secondary roller is fixed with an inner ring gear, the inner ring gear is meshed with the plurality of planet gears, the left side of the connecting block and the inner side of the secondary roller are fixed with a secondary encoder 1229, the output end of the secondary encoder 1229 is fixed with the right side of the rotating frame 1228, the secondary encoder 1229 controls the servo motor 1225 to speed up or slow down by judging the relative speed between the rotating frame 1228 and the secondary roller, so as to ensure that the rotating speed of the secondary roller is the same as that of the primary roller 1223.

[0034] In addition, the outer surfaces of the primary roller 1223 and the secondary roller are respectively fixed with a pay-off roller and a take-up roller, the outer surfaces of the pay-off roller and the take-up roller are respectively matched with the pull rope 127 and the let-in rope 126, the pull rope 127 and the let-in rope 126 cooperate to effectively limit the floating ball 125, further reducing the left and right shaking of the floating ball 125.

[0035] In the embodiment, the water flow is judged by recording the height of the floating ball 125 following the water surface falling, in order to reduce the influence of the let-in rope 126 on the water and the primary fixed pulley 123, the assisting mechanism 122 is used for assistance to provide additional power, so as to ensure that the winding of the let-in rope 126 and the release of the pull rope 127 remain relatively consistent, and at the same time ensure the accuracy of the data recorded by the primary encoder 1221.

[0036] It can be understood that the change of liquid level is recorded by the primary encoder 1221 and the primary water pressure sensor 128 simultaneously, thereby improving the accuracy of flow recording, and reacting on the cooling mechanism 8 to control the water spraying flow.

[0037] The working principle of the above embodiment is as follows: (1) By simultaneously starting the left and right second electric push rods 904, the output shafts of the left and right second electric push rods 904 are synchronously moved upward, which can drive the lower mold 3 to move upward, so that the lower surface of the upper mold 2 is attached to the upper surface of the lower mold 3. Then, the movable pipe 10 is used to transport the casting liquid into the upper mold 2 and the lower mold 3. When the impeller casting is completed, the first electric push rod 901 is started, the output shaft of the first electric push rod 901 drives the upper mold 2 and the lower mold 3 to move downward and into the cooling frame 802. The frame cover 903 is closed on the upper surface of the cooling frame 802. Then, the cooling water in the cooling frame 802 can cool the impeller mold formed in the upper mold 2 and the lower mold 3. The upper mold 2 and the lower mold 3 are made of metal and have heat conduction performance. When cooling, the water vapor generated is discharged to the outside through the exhaust movable pipe 11. The water level sensor 803 arranged on the left side wall of the inner cavity of the cooling frame 802 can detect the water level in the cooling frame 802. When the water level in the cooling frame 802 is lower than the water level sensor 803, the water level sensor 803 senses and sends a signal to the controller 804. The controller 804 opens the electromagnetic valve 807 and the water pump 805, and then the water in the water storage tank 801 is pumped into the cooling frame 802 to realize continuous water cooling. When the water level in the cooling frame 802 is higher than the water level sensor 803, the water level sensor 803 senses and sends a signal to the controller 804. The controller 804 closes the electromagnetic valve 807 and the water pump 805.

[0038] (2) After the impeller mold is completed and cooled, the product is completely solidified, the first electric push rod 901 is started, the lower mold 3 and the upper mold 2 are moved upward and pass through the fixed port 7, and then the lower mold 3 is moved downward at the lower side of the upper mold 2, so as to further separate the lower mold 3 and the upper mold 2. Finally, the handle 909 is pushed upward, the pushing plate 907 is moved upward, and the mold is demolded.

[0039] (3) When the mold is cooled, the water pump 805 continuously pumps out water, and the servo motor 1225 is started at the same time when the water pump 805 is started. At this time, the liquid level in the water storage tank 801 gradually decreases, which is recorded by the first water pressure sensor 128 and the first encoder 1221 at the same time, to ensure the accuracy of the recorded results. The function of the power assisting mechanism 122 is to reduce the influence of the first fixed pulley 123, the weight of the displacement rope 126, and water. As the floating ball 125 descends with the water surface, the pull rope 127 pulls the first roller 1223 to rotate, and the number of rotation is recorded by the first encoder 1221. At the same time, when the first roller 1223 rotates, the power is transmitted to the driving gear through the connecting rod 1227. When the speed of the servo motor 1225 is appropriate, the speed of the first roller 1223 and the second roller is consistent. At this time, the driving gear and the inner gear ring have the same angular velocity, and the rotating frame 1228 is in a locked state, and the second encoder 1229 cannot detect rotation.

[0040] (4) When the speed of the servo motor 1225 is relatively slow, the speed of the inner gear ring is slower than that of the driving gear at this time. The speed difference at this time drives multiple planetary gears to rotate, thereby promoting the rotation of the rotating frame 1228. At this time, it will be recognized by the second encoder 1229, so as to control the servo motor 1225 to accelerate slowly until the speed of the first roller 1223 and the second roller matches. When the speed of the servo motor 1225 is fast, the rotating frame 1228 will also rotate, but the rotation direction recognized by the second encoder 1229 is opposite to the above. At this time, it can be judged that the speed of the servo motor 1225 is fast, so as to adjust the speed of the servo motor 1225.

[0041] (5) When the water pump 805 stops, the electric push rod 1224 will be started at the same time, and extends into the positioning groove. At the same time, the servo motor 1225 and the first encoder 1221 are closed, and the flow control device 12 is in a locked state. When water is added to the water storage tank 801, as the water level continuously rises, when the floating ball 125 is submerged, the second water pressure sensor senses the water pressure and wakes up the servo motor 1225. At this time, the electric push rod 1224 still extends into the positioning groove, and the servo motor 1225 drives the first roller 1223 and the second roller to rotate at the same time, to ensure that the floating ball 125 continuously moves upward, until the floating ball 125 floats out of the water surface.

[0042] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0043] While the embodiments of the application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, numerous modifications are possible without departing from the spirit and scope of the present application as delineated by the claims and their equivalents.

Claims

1. A pump impeller mold for forming a pump impeller, comprising a support platform (1), an upper mold (2), and a lower mold (3), characterized in that: Support plates (4) are provided on both the left and right sides of the lower surface of the support platform (1). Support feet (5) are provided on both the front and rear sides of the lower surface of the support plates (4) on the left and right sides. A fixing frame (6) is provided on the upper surface of the support platform (1). A fixing opening (7) is provided through the upper surface of the support platform (1). A cooling mechanism (8) is provided on the right side of the support plate (4). A driving mechanism (9) is provided on the upper surface of the fixing frame (6). A flow control device (12) is provided inside the cooling mechanism (8) to effectively detect the water output and thus effectively control the cooling speed. The cooling mechanism (8) includes a water tank (801) located on the right side of the right support plate (4), a cooling frame (802) located on the opposite side of the left and right support plates (4), a water level sensor (803) located on the left side wall of the inner cavity of the cooling frame (802), a controller (804) located on the right side of the fixing frame (6), a water pump (805) located on the right side of the water tank (801), the water inlet of the water pump (805) passing through the water tank (801) through a pipe and extending into the interior, and the fixing port (7) located on the longitudinal central axis of the support platform (1). The cooling mechanism (8) includes a first connecting pipe (806) fixed to the outlet end of the water pump (805). The outer side of the first connecting pipe (806) away from the water pump (805) is connected to an electromagnetic valve (807). The inside of the electromagnetic valve (807) is connected to a second connecting pipe (808). The end of the second connecting pipe (808) away from the electromagnetic valve (807) is provided with a water spray section extending into the cooling frame (802). The right side of the upper surface of the water tank (801) is connected to an inlet pipe (809). The outer side of the top end of the inlet pipe (809) is threaded with a pipe cap (810).

2. A water pump impeller mold for forming a water pump impeller according to claim 1, characterized in that: The drive mechanism (9) includes a first electric push rod (901) disposed on the upper surface of the fixed frame (6). The outer side of the output shaft of the first electric push rod (901) slides through the fixed frame (6) and extends into the fixed frame (6). The outer side of the output shaft of the first electric push rod (901) is fixedly connected to the upper surface of the upper mold (2). Telescopic rods (902) are provided on both the left and right sides of the upper surface of the fixed frame (6). The bottom ends of the telescopic rods (902) on both the left and right sides penetrate the fixed frame (6) and extend into the fixed frame (6). The bottom ends of the telescopic rods (902) on both the left and right sides are fixedly connected to the left and right sides of the upper surface of the upper mold (2). A frame cover (903) is provided on the outer side of the upper mold (2). A second electric push rod (904) is provided on both the left and right sides of the upper surface of the frame cover (903). The outer side of the output shaft of the second electric push rod (904) on both the left and right sides slides through the frame cover (903) and extends into the lower side of the frame cover (903).

3. A water pump impeller mold for forming a water pump impeller according to claim 2, characterized in that: The drive mechanism (9) also includes connecting columns (905) on the outer side of the output shaft of the second electric push rod (904) on the left and right sides. The opposite sides of the connecting columns (905) on the left and right sides are fixedly connected to the left and right sides of the lower mold (3). The front and back sides of the lower mold (3) are provided with connecting rods (906). The interior of the lower mold (3) is slidably connected with a push plate (907). The lower surface of the push plate (907) is provided with a push rod (908). The bottom end of the push rod (908) is provided with a handle (909). The lower surface of the lower mold (3) is provided with a sliding hole (910). The push rod (908) is slidably connected inside the sliding hole (910) and the gap is matched. The outer side of the handle (909) is provided with an anti-slip layer. The anti-slip layer is a rubber layer. The push plate (907) is matched with the lower mold (3) in gap.

4. A pump impeller mold for forming a pump impeller according to claim 2, characterized in that: The telescopic rod (902) includes a first slide rod, and a second slide rod is slidably connected inside the first slide rod. An exhaust pipe (11) is connected to the left side of the upper surface of the frame cover (903).

5. A water pump impeller mold for forming a water pump impeller according to claim 1, characterized in that: The upper surface of the upper mold (2) is connected to the liquid injection pipe (10) on the right side.

6. A water pump impeller mold for forming a water pump impeller according to claim 1, characterized in that: The water level sensor (803), water pump (805) and solenoid valve (807) are all electrically connected to the controller (804) via wires.

7. A water pump impeller mold for forming a water pump impeller according to claim 1, characterized in that: The water spray section includes a three-way pipe that is fixedly connected to the second connecting pipe (808). The front and rear side walls of the inner cavity of the cooling frame (802) are provided with relief grooves. The left side of the three-way pipe is fixedly connected to two water spray pipes that penetrate the right side wall of the cooling frame (802) and extend into the two relief grooves respectively. Multiple water spray holes are provided on the opposite side of the two water spray pipes, and a nozzle is fixed in each water spray hole.

8. A water pump impeller mold for forming a water pump impeller according to claim 1, characterized in that: The flow control device (12) includes a base (121) fixed to the inner top wall of the water storage tank (801). An assist mechanism (122) is provided inside the base (121). Two movable rods are rotatably connected between the front and rear side walls of the water storage tank (801) via bearings. A primary fixed pulley (123) is fixed to the outer surface of each movable rod. Both primary fixed pulleys (123) are located at the lower part of the water storage tank (801). A stabilizing rod is rotatably connected between the front and rear side walls of the water storage tank (801) via bearings. The stabilizing rod is located to the left of the assist mechanism (122), and a secondary fixed pulley is fixed to the outer surface of the stabilizing rod. The outer surface of the auxiliary mechanism (122) is wound with a relief rope (126) and a pull rope (127). The relief rope (126) passes around the secondary fixed pulley (124), and the pull rope (127) passes around two primary fixed pulleys (123). A suspended ball (125) is fixed on the opposite side of the relief rope (126) and the pull rope (127). Multiple secondary water pressure sensors are fixed on the outer surface of the suspended ball (125) in a symmetrical arrangement. The multiple secondary water pressure sensors are all close to the upper part of the suspended ball (125). A primary water pressure sensor (128) is fixed on the inner bottom wall of the water storage tank (801).

9. A pump impeller mold for forming a pump impeller according to claim 8, characterized in that: The assist mechanism (122) includes a primary encoder (1221) fixed to the rear side wall of the base (121). A transmission rod (1222) is fixed to the output end of the primary encoder (1221). A primary roller (1223) is fixed to the outer surface of the transmission rod (1222). Two mounting slots are opened on the right side of the primary roller (1223). An electric push rod (1224) extending out of the mounting slot is fixed in each mounting slot. A servo motor (1225) is fixed to the front side wall of the base (121). A drive rod (1226) penetrating the front side wall of the base (121) is fixed to the output shaft of the servo motor (1225). A connecting block is fixed to the outer surface of the drive rod (1226). A secondary roller is fixed to the outer surface of the connecting block. A secondary roller is fixed to the right side of the primary roller (1223) and located between the two electric push rods (1224). A connecting rod (1227) is fixed, which passes through the secondary roller and is rotatably connected to the left side wall of the secondary roller via a bearing. A rotating frame (1228) is rotatably connected to the outer surface of the connecting rod (1227) via a bearing. The rotating frame (1228) is located inside the secondary roller. A drive gear located inside the rotating frame (1228) is fixed to the outer surface of the connecting rod (1227). Multiple planetary rods are rotatably connected to the inner side of the rotating frame (1228) via a bearing. A planetary gear that meshes with the drive gear is fixed to the outer surface of each planetary rod. An internal gear ring is fixed to the inner wall of the secondary roller. The internal gear ring meshes with multiple planetary gears. A secondary encoder (1229) is fixed to the left side of the connecting block and inside the secondary roller. The output end of the secondary encoder (1229) is fixed to the right side of the rotating frame (1228).

10. A water pump impeller mold for forming a water pump impeller according to claim 9, characterized in that: The outer surfaces of the primary roller (1223) and the secondary roller are respectively fixed with an unwinding roller and a winding roller, and the outer surfaces of the unwinding roller and the winding roller are respectively connected to the pull rope (127) and the clearance rope (126).

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