CN210477654U - Impeller mould - Google Patents

Abstract

The utility model discloses an impeller mould, which comprises a pressing mould, a bottom mould and a mould sleeve, wherein forming cavities are formed on two sides of a mould core, impeller inserts inserted into slots are arranged in the forming cavities, and pin moulds are arranged in the pressing mould; a plug sheet filled in the impeller flow passage is arranged between the bottom die and the die sleeve; the plug sheet comprises an upper plug sheet and a lower plug sheet which are connected up and down, and a plurality of compression springs for connecting the upper plug sheet and the lower plug sheet are arranged between the two supporting plates; the utility model discloses set up the chock block into interconnect's layered structure, go up the chock block and connect through compression spring between the lower chock block to utilize backup pad and L type slider spacing each other, the compound die compactness is strong, has ejection effect to the finished product during the die sinking simultaneously, is convenient for the drawing of patterns; the side surface of the mold core is provided with the slot matched with the impeller insert, so that the impeller insert is convenient to position, and the impeller insert is better coated on the blade to form an integral structure; meanwhile, the pin die arranged in the pressing die is convenient for inserting the extrusion pin and is convenient for exhausting air when the casting is pressed.

Description

Impeller mould

Technical Field

The utility model relates to a filling field specifically is an impeller mould.

Background

The centrifugal pump has the advantages of large liquid conveying capacity, uniform and stable flow, convenient use, low manufacturing cost and extremely wide application. The types of materials used in the manufacture of centrifugal pumps include cast iron, stainless steel, ceramics, various plastics, and the like. For conveying strong corrosive acid, alkali and salt media, fluoroplastic or fluoroplastic alloy is mainly adopted. Compared with a centrifugal pump made of metal, the fluoroplastic centrifugal pump widens the application field of the centrifugal pump, but the strength of the fluoroplastic centrifugal pump is much weaker than that of metal, particularly the strength of a heart part, namely an impeller, of a pump part directly influences the service life of a pump product.

In the prior art, the design of the plug piece in the impeller mould is integrally blocked, and because the runner is in a form of being wide inside and narrow outside, the deformation of the outlet of the runner of the impeller is easily caused when the impeller is sintered and demoulded, and the tightness of mould closing is also influenced when the plug piece is formed. Meanwhile, the metal insert is arranged in the impeller blade and is not easy to position, so that the cladding performance of the metal insert is poor, and the production quality is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an impeller mould to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an impeller mold comprises a pressing mold, a bottom mold and a mold sleeve, wherein a mold core is formed in the center of the pressing mold and the center of the bottom mold, a plurality of slots are formed in the periphery of the side surface of the mold core, molding cavities are formed in the two sides of the mold core, impeller inserts inserted into the slots are arranged in the molding cavities, and pin molds communicated with the molding cavities are arranged in the pressing mold; a plug sheet seat is embedded in the middle of the bottom die, and a plug sheet filled in the impeller flow passage is arranged between the bottom die and the die sleeve; the jam piece is including the last jam piece of connecting from top to bottom and lower jam piece, and lower jam piece both ends upwards extend and form the backup pad, are provided with the spout that the opening is relative on two backup pads opposite faces respectively, go up the jam piece bottom and be connected with the L type slider that inserts in the spout, are provided with a plurality of compression springs who connect up the jam piece and lower jam piece between two backup pads.

Preferably, the two sides of the top of the die sleeve are symmetrically provided with mounting holes, and the die sleeve and the side wall of the pressing die are fixed together through screws penetrating through the mounting holes.

Preferably, the two sides of the bottom of the die sleeve are symmetrically provided with the ear plates, the bottom surfaces of the ear plates are provided with the sunken positioning grooves, the top of the bottom die is correspondingly provided with the positioning lugs inserted into the positioning grooves, and the ear plates of the die sleeve are fixedly connected with the bottom die through screws.

Preferably, the slot is formed by closing a mold core of the pressing mold and a mold core of the bottom mold and is divided into an upper part and a lower part with opposite openings.

Preferably, the chock block sets up to a plurality of, and each chock block constitutes the ring shape in being in the impeller runner, and this ring shape has the central pore wall of tapering and the laminating of chock block seat, and the afterbody of each chock block outside being in the impeller runner establishes to the dovetail piece, is equipped with the bolt hole on the dovetail piece and is used for being equipped with each chock block fixed connection on the die block, and the thickness of chock block is not more than the outlet height of impeller runner.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses set up the chock block into interconnect's layered structure, including last chock block and lower chock block, go up the chock block and connect through compression spring between the lower chock block to it is spacing each other to utilize backup pad and L type slider, during the compound die, make impeller shaping stability good under compression spring's effect, the compound die compactness is strong, during the die sinking simultaneously, goes up the chock block and separates under compression spring's effect with lower chock block, has ejecting effect to the finished product, the drawing of patterns of being convenient for.

2. The utility model is provided with the slot matched with the impeller insert on the side surface of the mold core, thereby being convenient for positioning the impeller insert and leading the impeller insert to be better coated in the blade to form an integral structure; meanwhile, the pin die arranged in the pressing die is convenient for inserting the extrusion pin and is convenient for exhausting air when the casting is pressed.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of the die sleeve of the present invention;

fig. 3 is a schematic structural diagram of the plug sheet of the present invention;

fig. 4 is a schematic view of the detailed structure of the plug and dovetail pieces of the present invention.

In the figure: 1. pressing the die; 2. bottom die; 3. die sleeve; 4. a mold core; 5. mounting holes; 6. an ear plate; 7. a positioning groove; 8. positioning the bump; 9. a slot; 10. an impeller insert; 11. a molding cavity; 12. a pin die; 13. a plug seat; 14. a plug sheet; 15. an upper plug sheet; 16. a lower plug sheet; 17. a support plate; 18. a chute; 19. an L-shaped slider; 20. a compression spring; 21. a dovetail piece; 22. bolt holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides a technical solution: an impeller mold comprises a pressing mold 1, a bottom mold 2 and a mold sleeve 3, wherein a mold core 4 is formed in the centers of the pressing mold 1 and the bottom mold 2, a plurality of slots 9 are formed in the periphery of the side surface of the mold core 4, molding cavities 11 are formed in two sides of the mold core 4, impeller inserts 10 inserted into the slots 9 are arranged in the molding cavities 11, and pin molds 12 communicated with the molding cavities 11 are arranged in the pressing mold 1; a plug sheet seat 13 is embedded in the middle of the bottom die 2, and a plug sheet 14 filled in the impeller flow passage is arranged between the bottom die 2 and the die sleeve 3; the plug piece 14 comprises an upper plug piece 15 and a lower plug piece 16 which are connected up and down, two ends of the lower plug piece 16 extend upwards to form support plates 17, sliding grooves 18 with opposite openings are respectively arranged on opposite surfaces of the two support plates 17, an L-shaped sliding block 19 inserted into the sliding groove 18 is connected to the bottom of the upper plug piece 15, and a plurality of compression springs 20 connecting the upper plug piece 15 and the lower plug piece 16 are arranged between the two support plates 17.

Further, mounting holes 5 are symmetrically formed in two sides of the top of the die sleeve 3, and the die sleeve 3 and the side wall of the pressing die 1 are fixed together through screws penetrating through the mounting holes 5.

Further, 3 bottom bilateral symmetry of die sleeve is provided with otic placode 6, and 6 bottom surfaces of otic placode are provided with the positioning groove 7 of caving in, and 2 tops of die block correspond and are provided with the positioning lug 8 that inserts in positioning groove 7, pass through screw fixed connection between 6 of otic placode of die sleeve 3 and the die block 2, fix a position when being convenient for compound die, guarantee the stability of compound die.

Furthermore, the slot 9 is formed by closing the mold core 4 of the pressing mold 1 and the mold core 4 of the bottom mold 2, and is divided into an upper part and a lower part with opposite openings, so that demolding is facilitated during mold opening.

Furthermore, the plug pieces 14 are arranged into a plurality of pieces, each plug piece 14 is arranged in the impeller flow channel to form a circular ring shape, the circular ring shape is provided with a tapered central hole wall which is attached to the plug piece seat 13, the tail of each plug piece 14 outside the impeller flow channel is arranged to be a dovetail piece 21, the dovetail piece 21 is provided with a bolt hole 22 for fixedly connecting each plug piece 14 to the bottom die 2, and the thickness of each plug piece 14 is not more than the outlet height of the impeller flow channel.

The utility model discloses set up the chock block into interconnect's layered structure, including last chock block and lower chock block, go up the chock block and connect through compression spring between the lower chock block to it is spacing each other to utilize backup pad and L type slider, during the compound die, make impeller shaping stability good under compression spring's effect, the compound die compactness is strong, during the die sinking simultaneously, goes up the chock block and separates under compression spring's effect with lower chock block, has ejecting effect to the finished product, the drawing of patterns of being convenient for. The side surface of the mold core is provided with the slot matched with the impeller insert, so that the impeller insert is convenient to position, and the impeller insert is better coated on the blade to form an integral structure; meanwhile, the pin die arranged in the pressing die is convenient for inserting the extrusion pin and is convenient for exhausting air when the casting is pressed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. An impeller mold is characterized by comprising a pressing mold (1), a bottom mold (2) and a mold sleeve (3), wherein a mold core (4) is formed at the centers of the pressing mold (1) and the bottom mold (2), a plurality of slots (9) are formed in the periphery of the side surface of the mold core (4), molding cavities (11) are formed in the two sides of the mold core (4), impeller inserts (10) inserted into the slots (9) are arranged in the molding cavities (11), and pin molds (12) communicated with the molding cavities (11) are arranged in the pressing mold (1); a plug sheet seat (13) is embedded in the middle of the bottom die (2), and a plug sheet (14) filled in the impeller flow passage is arranged between the bottom die (2) and the die sleeve (3); the plug piece (14) includes upper plug piece (15) and lower plug piece (16) of connecting from top to bottom, and lower plug piece (16) both ends upwards extend and form backup pad (17), are provided with spout (18) that the opening is relative on two backup pad (17) opposite faces respectively, and upper plug piece (15) bottom is connected with L type slider (19) that insert in spout (18), is provided with a plurality of compression spring (20) of connecting upper plug piece (15) and lower plug piece (16) between two backup pad (17).

2. An impeller mold in accordance with claim 1 wherein: the die sleeve is characterized in that mounting holes (5) are symmetrically formed in two sides of the top of the die sleeve (3), and the die sleeve (3) and the side wall of the pressing die (1) are fixed together through screws penetrating through the mounting holes (5).

3. An impeller mold in accordance with claim 1 wherein: the die sleeve is characterized in that lug plates (6) are symmetrically arranged on two sides of the bottom of the die sleeve (3), recessed positioning grooves (7) are formed in the bottom surfaces of the lug plates (6), positioning lugs (8) inserted into the positioning grooves (7) are correspondingly arranged at the top of the bottom die (2), and the lug plates (6) of the die sleeve (3) are fixedly connected with the bottom die (2) through screws.

4. An impeller mold in accordance with claim 1 wherein: the inserting groove (9) is formed by closing a mold core (4) of the pressing mold (1) and a mold core (4) of the bottom mold (2) and is divided into an upper part and a lower part with opposite openings.

5. An impeller mold in accordance with claim 1 wherein: the utility model discloses a fan-shaped structure, including impeller runner, gag (14), dovetail piece (21), plug piece (14) are equipped with bolt hole (22) and are used for on die block (2) each gag (14) fixed connection, and the thickness of gag (14) is not more than the outlet height of impeller runner, and each gag (14) constitutes the ring shape in being in the impeller runner, and this ring shape has the central hole wall of tapering and the laminating of gag seat (13), and the afterbody of each gag (14) that is in outside the impeller runner establishes to dovetail piece (21), is equipped with bolt hole (22) on dovetail piece (21.

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