A water pump impeller forming equipment

Abstract

The present invention belongs to the technical field of water pump impellers, specifically, a water pump impeller molding device, including a lower mold, a lower molding groove is provided on the surface of the lower mold, a lifting rod is provided on the upper surface of the lower mold, an upper mold is slidably connected to the surface of the lifting rod, an upper molding groove is provided on the lower surface of the upper mold, and an injection port is provided inside the upper mold; a temporary storage frame is provided at the upper end of the upper mold, and a storage barrel is provided at the upper end of the temporary storage frame. By setting the temporary storage frame, when the lower mold is separated from the upper mold, the temporary storage frame can automatically load the injection molding liquid through the feeding pipe, and move the injection molding liquid required for molding a water pump impeller to the inside of the temporary storage frame, and the high-temperature heating pipe on the side wall of the temporary storage frame can control the temperature of the injection molding liquid inside the temporary storage frame and ensure the fluidity of the injection molding liquid. When the lower mold and the upper mold are fitted, the injection molding liquid will automatically enter the lower molding groove and the upper molding groove from the temporary storage frame, realizing automatic loading and intelligent storage of the injection molding liquid.

Description

Technical Field

[0001] The invention belongs to the technical field of water pump impellers, in particular to a water pump impeller forming device. Background Art

[0002] The water pump impeller is the core component of the water pump, and its performance directly affects the working efficiency of the water pump. The existing water pump impeller molding is through single-piece casting or investment casting process, among which investment casting can achieve higher casting dimensional accuracy and lower surface roughness, so the molding of water pump impellers mostly uses investment casting.

[0003] A patent application with publication number CN220347129U discloses a water pump impeller molding mold, including an upper mold, a lower mold, a base, a fixed plate, a leveling assembly, a feed port, a screw, a motor and a limit sleeve. By providing a limit sleeve that spirally rises with the screw, the molding mold can push the upper mold upward after cooling, avoiding the current situation where it is difficult to demold when separating the upper and lower molds.

[0004] There are still some problems in the actual application of the above scheme. Although the above mold can make it easier to demold the molded water pump impeller, the injection of the injection molding liquid still needs to be done manually, and the preparation time of the injection molding liquid is relatively long. After the previous water pump impeller is molded, it takes a long time to prepare the next injection molding liquid, which will greatly affect the working cycle. For this reason, when the water pump impeller is molded, a large amount of injection molding liquid is prepared at one time and stored in a container. After the water pump impeller is molded, it is only necessary to directly add the injection molding liquid to the mold. However, in some cold areas, if a large amount of injection molding liquid is stored in a container and the temperature outside the container is lower than the solidification point of the injection molding liquid, the viscosity of some injection molding liquids will increase and the fluidity will decrease during the injection molding, and unmelted residues will be formed, namely injection molding films. These films will not only affect the flow of the injection molding liquid, but also affect the molding effect of the water pump impeller.

[0005] To this end, the present invention provides a water pump impeller molding device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a water pump impeller molding device described in the present invention comprises a lower mold, a lower molding groove is provided on the surface of the lower mold, a lifting rod is provided on the upper surface of the lower mold, an upper mold is slidably connected on the surface of the lifting rod, an upper molding groove is provided on the lower surface of the upper mold, and an injection port is provided inside the upper mold; a temporary storage frame is provided at the upper end of the upper mold, a material storage barrel is provided at the upper end of the temporary storage frame, and injection molding liquid is placed inside the material storage barrel; the material storage barrel comprises: a blocking ball, the blocking ball is slidably connected to the inside of the material storage barrel, and the blocking ball contacts the opening of the lower end of the material storage barrel in an initial state; the temporary storage frame comprises: a temporary storage cavity, a temporary storage cavity is provided inside the temporary storage frame, and injection molding liquid is placed inside the temporary storage cavity; a high-temperature heating tube, the high-temperature heating tube is arranged on the inner wall of the temporary storage frame; a lower closing plate, the lower closing plate is slidably connected to the opening at the lower end of the temporary storage frame.

[0008] Preferably, the material storage barrel also includes: a material storage cavity, which is opened inside the material storage barrel; the temporary storage frame also includes: a feed pipe, which is arranged on the upper surface of the temporary storage frame; a fixing rod, which is arranged inside the feed pipe, and the fixing rod is abutted against the blocking ball; a discharge pipe, which is arranged on the lower surface of the temporary storage frame, and the discharge pipe is inserted into the interior of the injection port, and the lower closing piece slides inside the discharge pipe.

[0009] Preferably, an intermittent sealing piece is slidably connected inside the discharge pipe, and the intermittent sealing piece is arranged at the upper end of the lower sealing piece.

[0010] Preferably, a second abutment block is provided at the lower end of the intermittent closing plate, and a spring is provided at the end of the intermittent closing plate away from the discharge pipe, a first abutment block is provided at the upper end of the lower closing plate, and the first abutment block is in contact with the second abutment block, and the surface of the temporary storage frame is rotatably connected with a second double-layer tooth, and the second double-layer tooth is meshed with the lower closing plate.

[0011] Preferably, an upper sealing piece is slidably connected to the interior of the feed pipe, and the upper sealing piece seals the feed pipe in an initial state.

[0012] Preferably, a first double-layer tooth is rotatably connected to the surface of the temporary storage frame, and the first double-layer tooth is meshed with the upper closing plate.

[0013] Preferably, a fixed frame is provided on the surface of the lifting rod, an adjusting plate is fixedly connected to the surface of the fixed frame, a tooth block is provided on the surface of the adjusting plate, and the tooth block is meshed with both the first double-layer teeth and the second double-layer teeth.

[0014] Preferably, an active shaft piece is provided inside the material storage barrel, and the active shaft piece is in contact with a blocking ball, a clamping groove is provided on the lower surface of the blocking ball, an auxiliary clamping strip is provided on the upper end of the fixing rod, and the auxiliary clamping strip is clamped with the clamping groove.

[0015] Preferably, a screw is rotatably connected inside the material storage chamber, and the active shaft is fixedly connected to the screw. A pressing plate is slidably connected inside the material storage chamber, and the pressing plate is threadedly connected to the screw.

[0016] Preferably, a stirring sheet is provided on the surface of the active shaft sheet, and the stirring sheet is in contact with the injection liquid.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The water pump impeller molding equipment described in the present invention provides a temporary storage frame. After the water pump impeller is molded, the lower mold and the upper mold need to be separated so as to take out the molded water pump impeller. When the lower mold is separated from the upper mold, the temporary storage frame can automatically load the injection molding liquid through the feeding pipe, and move the injection molding liquid required for molding a water pump impeller to the inside of the temporary storage frame. The high-temperature heating pipe on the side wall of the temporary storage frame can control the temperature of the injection molding liquid inside the temporary storage frame and ensure the fluidity of the injection molding liquid. When the lower mold and the upper mold are fitted together, the injection molding liquid will automatically enter the lower molding groove and the upper molding groove from the temporary storage frame, realizing automatic loading and intelligent storage of the injection molding liquid.

[0019] 2. The water pump impeller molding equipment described in the present invention can automatically open and close the feed pipe and the discharge pipe during the movement of the upper mold by setting the first double-layer teeth and the second double-layer teeth, so that the opening can be automatically opened when the injection liquid is transferred, and the opening can be automatically closed when the injection liquid is temporarily stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention;

[0022] Figure 2 is a bottom view of the first embodiment of the present invention;

[0023] Figure 3 It is a position diagram of the upper mold and the lower mold of the present invention;

[0024] Figure 4 It is a working diagram of the upper mold and the lower mold of the present invention;

[0025] Figure 5 is a three-dimensional diagram of the first embodiment of the present invention;

[0026] Figure 6 It is an internal view of the storage barrel of the present invention;

[0027] Figure 7 It is a side view of the storage barrel of the present invention;

[0028] Figure 8 It is a partial view of the temporary storage frame of the present invention;

[0029] Fig. 9 It is a connection diagram of the feed pipe and the blocking ball of the present invention;

[0030] Fig.10 It is a position diagram of the fixing rod and the auxiliary clamping strip of the present invention;

[0031] Fig.11 It is a connection diagram of the fixed frame and the lifting rod of the present invention;

[0032] In the figure: 1. lower mold; 11. lower molding groove; 12. lifting rod; 2. upper mold; 21. upper molding groove; 22. injection port; 3. storage barrel; 31. storage cavity; 32. pressing plate; 33. screw; 34. active shaft plate; 35. stirring plate; 36. blocking ball; 37. clamping groove; 4. temporary storage frame; 401. temporary storage cavity; 402. high-temperature heating tube; 403. inlet pipe; 404. outlet pipe; 405. upper closing plate; 406. first double-layer teeth; 407. second double-layer teeth; 408. intermittent closing plate; 409. lower closing plate; 410. first abutment block; 411. second abutment block; 412. fixing rod; 413. auxiliary clamping strip; 414. fixing frame; 415. adjustment plate; 416. tooth block. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] Embodiment 1: Figures 1 to 11As shown, a water pump impeller molding device according to an embodiment of the present invention comprises a lower mold 1, a lower molding groove 11 is provided on the surface of the lower mold 1, a lifting rod 12 is provided on the upper surface of the lower mold 1, an upper mold 2 is slidably connected to the surface of the lifting rod 12, an upper molding groove 21 is provided on the lower surface of the upper mold 2, and an injection port 22 is provided inside the upper mold 2; a temporary storage frame 4 is provided at the upper end of the upper mold 2, a storage barrel 3 is provided at the upper end of the temporary storage frame 4, and injection liquid is placed inside the storage barrel 3; the storage barrel 3 includes: a blocking ball 36, which is slidably connected to the inside of the storage barrel 3, and the blocking ball 36 contacts the opening of the lower end of the storage barrel 3 in the initial state; the temporary storage frame 4 includes: a temporary storage cavity 401, the temporary storage frame 4 is provided with a temporary storage cavity 401, and the injection liquid is placed in the temporary storage cavity 401; a high-temperature heating tube 402, the high-temperature heating tube 402 is arranged on the inner wall of the temporary storage frame 4; and a lower closing piece 409, which is slidably connected to the opening of the lower end of the temporary storage frame 4.

[0035] Specifically, in the water pump impeller molding device of the scheme, when in use, the lower molding groove 11 and the upper molding groove 21 need to be wiped first to ensure that their surfaces are in a dry state, and then the selected plastic particles are preheated, the plastic particles are the raw materials of the water pump impeller molding injection molding liquid, and then the plastic particles are heated and pressurized to melt the plastic particles into a flowing molten material, the molten material is the injection molding liquid for the water pump impeller molding, and then the lower mold 1 and the upper mold 2 are put together, so that the lower molding groove 11 and the upper molding groove 21 are attached to each other and isolated from the outside, and at this time, a certain amount of injection molding liquid is added to the injection port 22, so that When the injection molding liquid fills the lower molding groove 11 and the upper molding groove 21, the injection molding can be stopped. At this time, the lower mold 1 and the upper mold 2 are pressurized and cooled. After the injection molding liquid is completely cooled, the mold is opened and the molded impeller can be taken out. However, this molding method not only requires manual injection molding in the early stage, but also takes a long time to prepare the injection molding liquid. After the previous water pump impeller is molded, it takes a long time to prepare the next injection molding liquid, which will greatly affect the working cycle. If the injection molding liquid is prepared in advance, the temperature of the injection molding liquid will change during the waiting time for injection molding, thereby affecting the effect of subsequent water pump impeller molding. For this reason, A temporary storage frame 4 is provided at the upper end of the upper mold 2, and a storage barrel 3 is provided above the temporary storage frame 4. When the injection molding liquid is prepared, a large amount of injection molding liquid can be prepared at one time, and the injection molding liquid is placed in the storage barrel 3 for storage, and then the upper mold 2 is started. Since the upper mold 2 is arranged to slide on the surface of the lifting rod 12, when the upper mold 2 moves to the lower end of the storage barrel 3, the opening at the upper end of the temporary storage frame 4 will abut against the blocking ball 36, and the blocking ball 36 will be pushed upward. At this time, the opening at the lower end of the storage barrel 3 will be opened, and the injection molding liquid temporarily stored inside will move toward the temporary storage cavity 401. When the dosage of the injection molding liquid reaches When a water pump impeller can be injection molded, the upper mold 2 is started again and the upper mold 2 will move downward. During the movement, the high-temperature heating tube 402 is started to control the temperature of the injection liquid inside the temporary storage chamber 401 so that it can cope with various cold environments. In addition, since the blocking ball 36 is no longer abutted by the temporary storage frame 4, the blocking ball 36 will move downward and block the lower end opening of the storage barrel 3 again. Then the upper mold 2 will move to fit with the lower mold 1. At this time, the lower closing piece 409 is opened, and the injection liquid will flow from the injection port 22 into the lower molding groove 11 and the upper molding groove 21 to realize the molding of the water pump impeller.

[0036] like Figures 1 to 10As shown, the storage barrel 3 also includes: a storage cavity 31, which is opened inside the storage barrel 3; the temporary storage frame 4 also includes: an inlet pipe 403, which is arranged on the upper surface of the temporary storage frame 4; a fixing rod 412, which is arranged inside the inlet pipe 403, and the fixing rod 412 is abutted against the blocking ball 36; a discharge pipe 404, which is arranged on the lower surface of the temporary storage frame 4, and the discharge pipe 404 is inserted into the interior of the injection port 22, and the lower closing piece 409 slides inside the discharge pipe 404.

[0037] Specifically, when the injection liquid needs to be extracted, the upper mold 2 is started, the feed pipe 403 on the upper surface of the upper mold 2 will be inserted into the interior of the storage barrel 3, and the fixing rod 412 will abut against the blocking ball 36, so that the injection liquid can enter the interior of the temporary storage cavity 401.

[0038] like Figures 1 to 8 As shown, an intermittent sealing piece 408 is slidably connected inside the discharge pipe 404 , and the intermittent sealing piece 408 is arranged at the upper end of the lower sealing piece 409 .

[0039] Specifically, an intermittent sealing piece 408 is provided at the upper end of the lower sealing piece 409. When the lower sealing piece 409 is opened, the intermittent sealing piece 408 is still closed. After the lower sealing piece 409 is fully opened, the intermittent sealing piece 408 will be opened to allow the injection molding liquid to enter the temporary storage chamber 401. After the water pump impeller is formed, the upper mold 2 needs to be lifted. At this time, the lower sealing piece 409 is started. The lower sealing piece 409 will move toward the direction of the discharge pipe 404, and finally the discharge pipe 404 will be closed. The intermittent sealing piece 408 will also block the discharge pipe 404, and the blocking speeds are inconsistent. The two plates with inconsistent closing speeds can play a good role in closing the discharge pipe 404, and some injection molding liquid remaining in the temporary storage chamber 401 will not move downward with the discharge pipe 404.

[0040] like Figures 6 to 8 As shown, a second abutment block 411 is provided at the lower end of the intermittent closing piece 408, and a spring is provided at the end of the intermittent closing piece 408 away from the discharge pipe 404, a first abutment block 410 is provided at the upper end of the lower closing piece 409, and the first abutment block 410 is in contact with the second abutment block 411, and the surface of the temporary storage frame 4 is rotatably connected with a second double-layer tooth 407, and the second double-layer tooth 407 is meshed with the lower closing piece 409.

[0041] Specifically, by setting the first abutment block 410 and the second abutment block 411, when the water pump impeller is formed and the upper mold 2 needs to be lifted, the second double-layer tooth 407 is started, and the second double-layer tooth 407 will drive the lower closing piece 409 to move toward the direction of the discharge pipe 404. When the lower closing piece 409 moves a certain distance and opens the discharge pipe 404, the first abutment block 410 will contact the second abutment block 411, thereby automatically driving the movement of the intermittent closing piece 408.

[0042] like Figures 7 and 8 As shown, an upper closing piece 405 is slidably connected inside the feed pipe 403, and the upper closing piece 405 closes the feed pipe 403 in the initial state.

[0043] Specifically, by setting a sliding upper closing piece 405 inside the feed pipe 403, when the injection liquid needs to be moved from the storage chamber 31 to the inside of the temporary storage chamber 401, starting the upper closing piece 405 will open the feed pipe 403. When the injection liquid transfer is completed and the upper mold 2 moves downward, the upper closing piece 405 is started again, and the upper closing piece 405 will close the feed pipe 403 again, thereby preventing the injection liquid from flowing out from the upper end of the feed pipe 403.

[0044] like Figures 7 and 8 As shown, the surface of the temporary storage frame 4 is rotatably connected with a first double-layer tooth 406 , and the first double-layer tooth 406 is meshed with the upper closing piece 405 .

[0045] Specifically, when the injection liquid needs to be moved from the storage chamber 31 to the interior of the temporary storage chamber 401 , the first double-layer teeth 406 are activated, and the first double-layer teeth 406 will drive the upper closing piece 405 to move and open the feeding pipe 403 .

[0046] like Figures 7 to 11 As shown, a fixed frame 414 is provided on the surface of the lifting rod 12, an adjusting plate 415 is fixedly connected to the surface of the fixed frame 414, a tooth block 416 is provided on the surface of the adjusting plate 415, and the tooth block 416 is meshed with both the first double-layer teeth 406 and the second double-layer teeth 407.

[0047] Specifically, when the temporary storage frame 4 moves to the bottom of the storage barrel 3, the first double-layer teeth 406 will automatically open due to the engagement of the tooth block 416, so that the injection liquid can enter the interior of the temporary storage cavity 401, and when the upper mold 2 moves to fit with the lower mold 1, the second double-layer teeth 407 will engage with the tooth block 416, thereby driving the lower closing plate 409 to move.

[0048] Embodiment 2: Figures 6 to 10As shown, compared with Example 1, another embodiment of the present invention is: an active shaft piece 34 is provided inside the storage barrel 3, and the active shaft piece 34 is in contact with the blocking ball 36, a clamping groove 37 is provided on the lower surface of the blocking ball 36, an auxiliary clamping strip 413 is provided at the upper end of the fixing rod 412, and the auxiliary clamping strip 413 is clamped with the clamping groove 37.

[0049] Specifically, by providing an auxiliary clamping strip 413 on the surface of the fixed rod 412, when the fixed rod 412 contacts the blocking ball 36, the auxiliary clamping strip 413 at the upper end of the fixed rod 412 will be clamped into the inside of the clamping groove 37, and the blocking ball 36 will abut against the lower end of the active shaft 34. When the temporary storage frame 4 moves downward, the auxiliary clamping strip 413 will move downward with the blocking ball 36, and finally block the lower end of the storage barrel 3, thereby avoiding the problem that the blocking ball 36 does not block the lower end of the storage barrel 3 after the temporary storage frame 4 is separated from the storage barrel 3.

[0050] like Figures 6 to 10 As shown, a screw rod 33 is rotatably connected inside the material storage chamber 31 , and an active shaft sheet 34 is fixedly connected to the screw rod 33 . A pressing sheet 32 ​​is slidably connected inside the material storage chamber 31 , and the pressing sheet 32 ​​is threadedly connected to the screw rod 33 .

[0051] Specifically, by setting a pressing plate 32, when the injection liquid inside the storage chamber 31 flows into the temporary storage chamber 401, the screw 33 is started to rotate, and the screw 33 will drive the pressing plate 32 to move downward, thereby increasing the pressure of the injection liquid, so that the injection liquid can be quickly transferred to the interior of the temporary storage chamber 401.

[0052] like Figures 6 to 10 As shown, a stirring blade 35 is provided on the surface of the driving shaft 34, and the stirring blade 35 is in contact with the injection liquid.

[0053] Specifically, a large amount of injection molding liquid is stored in the storage barrel 3. If the temperature outside the storage barrel 3 is lower than the freezing point of the injection molding liquid, the viscosity of some injection molding liquid will increase and form unmelted residues, namely, injection molding films. These films will affect the flow of the injection molding liquid. For this purpose, a stirring blade 35 is provided. When the screw 33 rotates, the screw 33 will drive the stirring blade 35 to rotate together, thereby stirring the injection molding liquid to ensure that the injection molding liquid has good fluidity.

[0054] Working principle: When in use, first wipe the lower molding groove 11 and the upper molding groove 21 to ensure that their surfaces are dry, and then preheat the selected plastic particles, which are the raw materials for the injection molding liquid for the water pump impeller. Then heat and pressurize the plastic particles to melt the plastic particles into a flowing molten material, which is the injection molding liquid for the water pump impeller. Put the injection molding liquid into the storage barrel 3 for storage, and then start the upper mold 2. Since the upper mold 2 is set to slide on the surface of the lifting rod 12, when the upper mold 2 moves to the lower end of the storage barrel 3, the feed pipe 403 will be inserted into the interior of the storage barrel 3, and the fixing rod 412 will abut against the blocking ball 36 to push the blocking ball 36 upward. At this time, the opening at the lower end of the storage barrel 3 will be opened, allowing the injection molding liquid to flow in. It can enter the interior of the temporary storage chamber 401. When the dosage of the injection molding liquid reaches that of injecting a water pump impeller, the upper mold 2 is started again and the upper mold 2 will move downward. During the movement, the first double-layer teeth 406 will be automatically closed due to the engagement of the tooth block 416. When the upper mold 2 moves to fit with the lower mold 1, the second double-layer teeth 407 will engage with the tooth block 416, thereby driving the lower closing piece 409 to move. At this time, the injection molding liquid can open the discharge pipe 404, so that the injection molding liquid flows into the lower molding groove 11 and the upper molding groove 21 along the injection port 22 to realize the molding of the water pump impeller. In addition, during the movement of the upper mold 2, the high-temperature heating tube 402 is started to control the temperature of the injection molding liquid inside the temporary storage chamber 401, so that it can cope with various cold environments.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water pump impeller forming device, characterized in that: The invention comprises a lower mold (1), wherein a lower molding groove (11) is provided on the surface of the lower mold (1), a lifting rod (12) is provided on the upper surface of the lower mold (1), an upper mold (2) is slidably connected to the surface of the lifting rod (12), an upper molding groove (21) is provided on the lower surface of the upper mold (2), and an injection port (22) is provided inside the upper mold (2); a temporary storage frame (4) is provided at the upper end of the upper mold (2), a material storage barrel (3) is provided at the upper end of the temporary storage frame (4), and injection liquid is placed inside the material storage barrel (3); The storage cylinder (3) comprises: A material blocking ball (36), the material blocking ball (36) being slidably connected to the interior of the material storage barrel (3), and the material blocking ball (36) contacts the opening at the lower end of the material storage barrel (3) in an initial state; A material storage cavity (31), wherein the material storage cavity (31) is opened inside the material storage barrel (3); The temporary storage frame (4) comprises: A temporary storage cavity (401), wherein the temporary storage frame (4) is provided with a temporary storage cavity (401) inside, and an injection liquid is placed inside the temporary storage cavity (401); A high-temperature heating tube (402), wherein the high-temperature heating tube (402) is arranged on the inner wall of the temporary storage frame (4); A lower closing piece (409), the lower closing piece (409) being slidably connected to an opening at the lower end of the temporary storage frame (4); A material feeding pipe (403), wherein the material feeding pipe (403) is arranged on the upper surface of the temporary storage frame (4); A fixing rod (412), wherein the fixing rod (412) is disposed inside the material inlet pipe (403), and the fixing rod (412) is in contact with the material blocking ball (36); A discharge pipe (404) is provided on the lower surface of the temporary storage frame (4), and the discharge pipe (404) is inserted into the interior of the injection port (22), and the lower sealing piece (409) slides inside the discharge pipe (404).

2. A water pump impeller forming device according to claim 1, characterized in that: An intermittent sealing piece (408) is slidably connected inside the discharge pipe (404), and the intermittent sealing piece (408) is arranged at the upper end of the lower sealing piece (409).

3. A water pump impeller forming device according to claim 2, characterized in that: A second abutment block (411) is provided at the lower end of the intermittent closing piece (408), and a spring is provided at one end of the intermittent closing piece (408) away from the discharge pipe (404). A first abutment block (410) is provided at the upper end of the lower closing piece (409), and the first abutment block (410) is in contact with the second abutment block (411). A second double-layer tooth (407) is rotatably connected to the surface of the temporary storage frame (4), and the second double-layer tooth (407) is meshed with the lower closing piece (409).

4. The water pump impeller forming equipment according to claim 1, characterized in that: An upper sealing piece (405) is slidably connected inside the feed pipe (403), and the upper sealing piece (405) seals the feed pipe (403) in an initial state.

5. The water pump impeller forming equipment according to claim 4, characterized in that: The surface of the temporary storage frame (4) is rotatably connected with a first double-layer tooth (406), and the first double-layer tooth (406) is meshed with the upper closing plate (405).

6. The water pump impeller forming equipment according to claim 5, characterized in that: A fixed frame (414) is provided on the surface of the lifting rod (12), an adjusting plate (415) is fixedly connected to the surface of the fixed frame (414), a tooth block (416) is provided on the surface of the adjusting plate (415), and the tooth block (416) is meshed with both the first double-layer teeth (406) and the second double-layer teeth (407).

7. The water pump impeller forming equipment according to claim 1, characterized in that: An active shaft sheet (34) is provided inside the material storage barrel (3), and the active shaft sheet (34) is in contact with a material blocking ball (36). A clamping groove (37) is provided on the lower surface of the material blocking ball (36). An auxiliary clamping strip (413) is provided at the upper end of the fixing rod (412), and the auxiliary clamping strip (413) is clamped with the clamping groove (37).

8. The water pump impeller forming equipment according to claim 1, characterized in that: The material storage chamber (31) is rotatably connected to a screw rod (33) inside, and the driving shaft sheet (34) is fixedly connected to the screw rod (33). The material storage chamber (31) is slidably connected to a pressing sheet (32) inside, and the pressing sheet (32) is threadedly connected to the screw rod (33).

9. The water pump impeller forming equipment according to claim 8, characterized in that: A stirring sheet (35) is provided on the surface of the active shaft sheet (34), and the stirring sheet (35) is in contact with the injection liquid.

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