Multi-stage pump impeller precision casting mold

Abstract

The utility model provides a multi-stage pump impeller precision casting mold which comprises a lower mold plate and an upper mold plate, a mold sleeve is fixedly connected to the top of the lower mold plate, a lower mold is fixedly connected in the mold sleeve, a mold is fixedly connected in the lower mold, an upper mold is installed on the top of the lower mold, the upper mold is installed in the mold sleeve, and the lower mold is fixedly connected in the mold sleeve. The bottom of the upper die is fixedly connected with a pump blade embossing, the top of the upper die is fixedly connected with an upper die plate, an upper die cavity is formed in the upper die, a motor is arranged on the top of the upper die plate, the output end of the motor is fixedly connected with a rotating rod, the rotating rod is movably installed in the upper die cavity, and the rotating rod is fixedly connected with a plurality of extension rods. A plurality of vibration devices are fixedly mounted on the extension rods, and after the pump impeller is cast in cooperation with the mold and the pump blade knurling, when demolding operation needs to be carried out, the motor slightly rotates the rotating rod and is started with the vibration devices on the extension rods, so that efficient and uniform demolding of the pump blade knurling is achieved, and then the casting yield is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to pump impeller mould field especially relates to multistage pump impeller precision casting mould. BACKGROUND

[0002] Pump impeller mould is a kind of tool for manufacturing pump impeller, and pump impeller is one of the core components of pump, is responsible for the liquid from the suction end to the discharge end, through rotation generates centrifugal force, thereby realizing the delivery and pressure increase of liquid, and the design and manufacturing precision of pump impeller mould directly influence the quality and performance of impeller, the shape and size in mould are completely consistent with the impeller finally produced, and every detail is ensured to meet the design requirement by precision machining technology, in the production process, melt metal is poured into mould, after cooling and solidification, the mould is opened and the shaped impeller is taken out.

[0003] Now there is a kind of water pump impeller casting manufacturing mould of Chinese patent document CN202322808282.5, including lower mould, lower fixed plate is fixedly connected at the bottom of the lower mould, upper mould is set up at the top of the lower mould, upper fixed plate is fixedly connected at the top of the upper mould, knock mechanism is set up in the inside of the lower mould, is used for the knock of the inner chamber of lower mould, facilitates demoulding, positioning mechanism is set up in the inside of the upper mould, is used for the positioning of lower mould and upper mould, the water pump impeller casting manufacturing mould sets up knock mechanism, repeatedly knocks the inner chamber of lower mould, and the workpiece adhered to the inner chamber of lower mould is made to fall off by the vibration generated by knocking, assists workpiece to demould, improves the efficiency of work, sets up positioning mechanism, facilitates the moulding of upper mould and lower mould, improves the precision of the fixation of upper mould and lower mould, and improves the forming quality of workpiece.

[0004] But the above patent has certain defects when using, since the inner chamber of lower mould is repeatedly knocked, the workpiece adhered to the inner chamber of lower mould is made to fall off by the vibration generated by knocking, when the mould is naturally cooled, only knocking one side mould can cause uneven stress of the mould, and good demoulding effect cannot be achieved.

[0005] Therefore, multistage pump impeller precision casting mould is provided to solve the above problems. Utility model content

[0006] In order to overcome the defects of prior art, the utility model provides multistage pump impeller precision casting mould.

[0007] The utility model adopts the following technical scheme:

[0008] Multistage pump impeller precision casting mould, including

[0009] A lower mold plate is fixedly connected with a mold sleeve at the top, a lower mold is fixedly connected in the mold sleeve, a mold is fixedly connected in the lower mold, an upper mold is installed at the top of the lower mold and is installed in the mold sleeve, and a pump blade embosser is fixedly connected to the bottom of the upper mold.

[0010] The top of the upper mold is fixedly connected with an upper mold plate, and an upper mold cavity is arranged in the upper mold, a motor is arranged at the top of the upper mold plate, a rotating rod is fixedly connected to the output end of the motor, the rotating rod is movably installed in the upper mold cavity, a plurality of extension rods are fixedly connected to the rotating rod, and a plurality of vibration devices are fixedly installed on the extension rods.

[0011] As a preferred scheme of the utility model, the two sides of the lower mold plate are provided with movable rods, push rods are fixedly connected to the two sides of the movable rods, one end of the push rod is fixedly connected with a screw rod, the screw rod is fixedly connected with a baffle at the tail end, a convex limiting device is installed on the screw rod, and an adjusting sleeve is fixedly connected to the convex limiting device.

[0012] As a preferred scheme of the utility model, the two sides of the upper mold plate are fixedly connected with limiting grooves, the limiting grooves are matched with the convex limiting devices, and the limiting grooves are connected with the convex limiting devices.

[0013] As a preferred scheme of the utility model, the top of the lower mold is provided with a plurality of positioning holes, a plurality of positioning columns are fixedly connected to the bottom of the upper mold, and the plurality of positioning holes and the plurality of positioning columns are in an assembly relationship.

[0014] As a preferred scheme of the utility model, the lower mold is provided with a lower mold cavity, a plurality of refrigerating plates are fixedly installed in the lower mold cavity, connecting pipes are fixedly installed between the plurality of refrigerating plates, and an external connecting pipe is fixedly installed between one refrigerating plate, the lower mold and the mold sleeve.

[0015] As a preferred scheme of the utility model, the two sides of the motor are provided with handles, and the handles are fixedly connected to the top of the upper mold plate.

[0016] As a preferred scheme of the utility model, the outer wall of the vibration device is fixedly connected with a rubber pad.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The rotating rod fixedly connected to the output end of the motor at the top of the upper mold plate is movably installed in the upper mold cavity, when the pump blade wheel is finished with the cooperation of the mold and the pump blade embosser, and demolding operation is needed, the motor slightly rotates the rotating rod, and the vibration device on the extension rod is started, so that efficient and uniform demolding of the pump blade embosser is realized, and the casting yield is improved.

[0019] 2. When the upper die and the lower die are installed, the precise fit of the positioning column and the positioning hole ensures the accurate alignment of the mold, and the push rod and the lead screw installed on the movable rod on both sides of the lower die plate cooperate through the adjustment sleeve of the baffle and the convex limiting device, realizing convenient adjustment and stable limiting of the mold, when the upper die is matched with the positioning hole of the lower die through the positioning column, the push rod is manually lifted and pushed into the limiting groove, then the convex limiting device is fixed in the limiting groove through the adjustment sleeve and the lead screw, ensuring the stability of the mold during casting and the high precision of repeated use.

[0020] 3. By providing a plurality of refrigerating plates in the lower die cavity, the refrigerating plates can effectively control the mold temperature when the pump impeller is cast in the mold, quickly cool down, and cooperate with the vibration device to demold, improving the casting efficiency and the production quality of the pump impeller. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall structure diagram of the utility model;

[0022] Figure 2 is the upper die and lower die structure diagram of the utility model;

[0023] Figure 3 is the utility model explosion diagram;

[0024] Figure 4 is the upper die inner cavity structure diagram of the utility model;

[0025] Figure 5 is the lower die inner cavity structure diagram of the utility model;

[0026] Figure 6 is the push rod structure diagram of the utility model;

[0027] In the drawing: 1, upper die plate; 2, lower die plate; 3, upper die; 4, pump leaf embossing; 5, die sleeve; 6, lower die; 7, mold; 8, positioning column; 9, positioning hole; 10, movable rod; 11, push rod; 12, lead screw; 13, baffle; 14, limiting groove; 15, convex limiting device; 16, adjustment sleeve; 17, handle; 18, motor; 19, rotating rod; 20, extension rod; 21, vibration device; 22, rubber pad; 23, upper die cavity; 24, lower die cavity; 25, refrigerating plate; 26, connecting pipe; 27, external pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0029] Embodiment:

[0030] Please refer to Figures 1-5 , multi-stage pump impeller precision casting mold, comprising:

[0031] The lower mold plate 2 is fixedly connected with a mold sleeve 5 at the top, the mold sleeve 5 is fixedly connected with a lower mold 6 inside, the lower mold 6 is fixedly connected with a mold 7 inside, the upper mold 3 is installed at the top of the lower mold 6, and the upper mold 3 is installed in the mold sleeve 5, and the pump blade embossing 4 is fixedly connected to the bottom of the upper mold 3;

[0032] The upper mold 3 is fixedly connected with an upper mold plate 1 at the top, and the upper mold 3 is provided with an upper mold cavity 23 inside, the upper mold plate 1 is provided with a motor 18 at the top, the output end of the motor 18 is fixedly connected with a rotating rod 19, the rotating rod 19 is movably installed in the upper mold cavity 23, a plurality of extension rods are fixedly connected to the rotating rod 19, and a plurality of vibration devices 21 are fixedly installed on the plurality of extension rods.

[0033] In the embodiment, the lower mold plate 2 is fixedly connected with a mold sleeve 5 at the top, the mold sleeve 5 is fixedly connected with a lower mold 6 inside, the lower mold 6 is fixedly connected with a mold 7 inside, the mold 7 is used for forming the complex structure of the pump impeller, the upper mold 3 is installed at the top of the lower mold 6, the pump blade embossing 4 is fixedly connected to the bottom of the upper mold 3, the pump blade embossing 4 and the mold 7 form corresponding patterns for forming the surface of the pump impeller, the upper mold 3 is fixedly connected with an upper mold plate 1 at the top, and the upper mold 3 is provided with an upper mold cavity 23 inside, the upper mold plate 1 is provided with a motor 18 at the top, the output end of the motor 18 penetrates through the upper mold plate 1 and is fixedly connected with a rotating rod 19, after the pump impeller is cast in the mold 7, when demolding operation is needed, the rotating rod 19 is slightly rotated back and forth through the driving of the motor 18, so as to drive the vibration devices 21 on the extension rods to work, and the high-frequency vibration generated by the vibration devices 21 makes the pump impeller fall off from the mold 7.

[0034] Specifically, the two sides of the lower mold plate 2 are provided with movable rods 10, the two sides movable rods 10 are fixedly connected with push rods 11, one end of the push rod 11 is fixedly connected with a screw rod 12, the screw rod 12 is fixedly connected with a baffle 13 at the end, the screw rod 12 is installed with a convex limiting device 15, and the convex limiting device 15 is fixedly connected with an adjusting sleeve 16.

[0035] In this embodiment, the movable rod 10 is fixedly connected with a push rod 11, one end of the push rod 11 is fixedly connected with a lead screw 12, the end of the lead screw 12 is fixedly connected with a baffle 13, the baffle 13 is used to limit the convex limiting device 15, the convex limiting device 15 is fixedly installed on the lead screw 12, and the convex limiting device 15 is fixedly connected with an adjusting sleeve 16, and the position of the convex limiting device 15 on the lead screw 12 is adjusted by rotating the adjusting sleeve 16.

[0036] Specifically, the upper die plate 1 is fixedly connected with a limiting groove 14 on both sides of the top, the limiting groove 14 is matched with the convex limiting device 15, and the limiting groove 14 is connected with the convex limiting device 15.

[0037] In this embodiment, the limiting groove 14 fixedly connected with the convex limiting device 15 on both sides of the upper die plate 1 is in an assembled relationship, when the upper die 3 is installed on the top of the lower die 6 through the die sleeve 5, the push rod 11 is manually lifted and pushed into the limiting groove 14, then the convex limiting device 15 is fixed in the limiting groove 14 by cooperating the adjusting sleeve 16 with the lead screw 12, and the stability of the mold 7 during the casting process and the high precision of repeated use are ensured.

[0038] Specifically, the lower die 6 is provided with a plurality of positioning holes 9, and the upper die 3 is fixedly connected with a plurality of positioning columns 8.

[0039] In this embodiment, the plurality of positioning columns 8 on the bottom of the upper die 3 is in an assembled relationship with the plurality of positioning holes 9 on the top of the lower die 6, when the upper die 3 is installed on the top of the lower die 6 through the die sleeve 5, the plurality of positioning columns 8 on the bottom of the upper die 3 is aligned with the plurality of positioning holes 9 on the bottom of the lower die 6 for installation, ensuring the precise cooperation between the upper die 3 and the lower die 6.

[0040] Specifically, the lower die 6 is provided with a lower die cavity 24, a plurality of refrigerating plates 25 is fixedly installed in the lower die cavity 24, and a connecting pipe 26 is fixedly installed between the plurality of refrigerating plates 25. One of the refrigerating plates 25 is fixedly installed with an external connecting pipe 27 penetrating through the lower die 6 and the die sleeve 5.

[0041] In this embodiment, the lower die cavity 24 is fixedly connected with a plurality of refrigerating plates 25, the plurality of refrigerating plates 25 is connected with a connecting pipe 26, and one of the refrigerating plates 25 is fixedly installed with an external connecting pipe 27 penetrating through the lower die 6 and the die sleeve 5. The external connecting pipe 27 is externally connected with a cooling liquid, and the cooling liquid passes through the refrigerating plates 25 and the connecting pipe 26, so that the pump impeller is quickly cooled after being machined in the mold 7, and is demolded by cooperating with the vibrating device 21, thereby improving the casting efficiency and the production quality of the pump impeller.

[0042] Specifically, the motor 18 is provided with a handle 17 on both sides, and the handle 17 is fixedly connected to the top of the upper die plate 1.

[0043] In the embodiment, the handles 17 are arranged on both sides of the motor 18, which facilitates the operator to install and remove the upper mold 3, thereby better performing the pump impeller demolding.

[0044] Specifically, the outer wall of the vibration device 21 is fixedly connected with the rubber pad 22.

[0045] In the embodiment, the rubber pad 22 can effectively reduce the damage of the vibration device 21 to the pump blade embossing 4 when in operation, and avoid damage to the mold 7 and the cast part.

[0046] The principle of the utility model is: first, the stainless steel liquid is poured into the mold 7 in the lower mold 6, then the multiple positioning columns 8 at the bottom of the upper mold 3 are aligned with the multiple positioning holes 9 at the bottom of the lower mold 6 for installation, when the installation is completed, the mold 7 and the pump blade embossing 4 form corresponding patterns, the push rod 11 is manually lifted and pushed into the limiting groove 14, then the convex limiting device 15 is fixed in the limiting groove 14 by adjusting the sleeve 16 and cooperating with the lead screw 12, when the pump impeller is cast in the mold 7, the cooling liquid is connected through the external connecting pipe 27, then the pump impeller is rapidly cooled after being processed in the mold 7, when the pump impeller is rapidly cooled to the demolding temperature, the convex limiting device 15 is adjusted by the adjusting sleeve 16, then the push rod 11 is removed from the limiting groove 14, at this time, the motor 18 is started, the rotating rod 19 rotates back and forth slightly, thereby driving the vibration device 21 on the extension rod to work, the high-frequency vibration generated by the vibration device 21 makes the pump impeller fall off from the mold 7.

[0047] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and improvement concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A precision casting mold for a multi-stage pump impeller, characterized by, The utility model relates to a pump leaf embossing device, including: The lower mould plate top fixedly connected with the mould cover, the mould cover in fixedly connected with the lower mould, and the lower mould in fixedly connected with the mould, the upper mould is installed in the mould cover, the upper mould bottom fixedly connected with the pump leaf embossing is installed in the mould cover, The upper mould top fixedly connected with the upper mould plate, and the upper mould is equipped with upper mould cavity, the upper mould plate top is equipped with motor, the motor output fixedly connected with the rotating rod, the rotating rod movable installation is in the upper mould cavity, a plurality of extension rods are fixedly connected on the rotating rod, a plurality of vibration devices are fixedly installed on the plurality of extension rods.

2. The precision casting mold for a multistage pump impeller according to claim 1, characterized by: The lower mould plate both sides are equipped with movable rod, the both sides movable rod are all fixedly connected with the push rod, the push rod one end fixedly connected with the screw rod, the screw rod tail fixedly connected with the baffle, the screw rod is installed with convex limit device, and the convex limit device is fixedly connected with the adjusting sleeve on.

3. The precision casting mold for a multistage pump impeller according to claim 2, characterized by: The upper mould plate top both sides are all fixedly connected with the limit slot, the limit slot and convex limit device are matched and installed, and the limit slot is connected with convex limit device.

4. The precision casting mold for a multistage pump impeller according to claim 3, characterized by: The lower mould top is equipped with a plurality of positioning holes, the upper mould bottom fixedly connected with a plurality of positioning columns, a plurality of positioning holes and a plurality of positioning columns are in assembly relationship.

5. The precision casting mold for a multistage pump impeller according to claim 4, characterized by: The lower mould is equipped with lower mould cavity, a plurality of refrigerating plates are fixedly installed in the lower mould cavity, a plurality of connecting pipes are fixedly installed between the plurality of refrigerating plates, and one refrigerating plate is fixedly installed with external connecting pipe through the lower mould and the mould cover.

6. The precision casting mold for a multistage pump impeller according to claim 5, characterized by: The motor both sides are equipped with handle, and the handle is fixedly connected on the upper mould plate top.

7. The precision casting mold for a multistage pump impeller according to claim 6, characterized in that: The vibration device outer wall is fixedly connected with rubber pad.

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