Aluminum alloy casting die for water outlet of water pump

Abstract

The utility model discloses an aluminum alloy casting die for a water outlet of a water pump, which comprises a die block a, a die block b and a die core, the die core is positioned between the die block a and the die block b and transversely penetrates through the die block a and the die block b, a sprue is formed above the die block a and the die block b after die assembly, an outer barrel cavity is formed between the outer side of the die core and the die block a and the die block b after die assembly, and the lower end of the sprue is communicated with the outer barrel cavity. The die core comprises two core columns, a plurality of protruding teeth are evenly arranged at the inner ends of the core columns along the circumference, two opposite sets of protruding teeth are meshed in a staggered mode, a blade cavity is formed between the two meshed protruding teeth, the outer end of the blade cavity is communicated with the outer barrel cavity, a tail base is arranged at the tail of each core column, sliding grooves are symmetrically formed in the two sides of the die block a, and the tail bases are connected with the sliding grooves in a matched and sliding mode. The two core columns can transversely move along the sliding grooves to achieve mold opening and closing, the core columns are driven by the lead screws on the backs to move face to face or back to back, and therefore stable demolding and material taking are conveniently achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to casting mould technical field, concretely is aluminium alloy casting mould of water pump water outlet. BACKGROUND

[0002] Axial flow pump is a kind of water pump of large flow and low lift, and is worked by the thrust generated by impeller rotation, axial flow pump has vertical type, horizontal type, inclined type and tubular type, axial flow type submersible pump can meet the needs of pumping and drainage when urban waterlogging and flood control, improve the working efficiency when flood control and drainage. The water outlet of the axial flow pump is mostly a cylinder structure formed by aluminum alloy casting, and a plurality of uniformly distributed guide vanes are arranged in the inside of the cylinder along the circumference. Since the cavity structure of the formed vane is complex, it is not easy to separate and demold. SUMMARY

[0003] The utility model discloses an aluminium alloy casting mould of water pump water outlet, which aims at solving the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: an aluminium alloy casting mould of water pump water outlet, comprising a module a, a module b and a core, the core is located between the module a and the module b and transversely penetrates, the module a and the module b form a sprue at the top after closing, an outer cylinder cavity is formed between the outer side of the core and the module a and the module b after closing, the lower end of the sprue is communicated with the outer cylinder cavity, the core comprises two core columns, a plurality of protrusions are evenly arranged on the circumferences of the inner ends of the core columns, the protrusions of the two groups are staggered and engaged, a vane cavity is formed between the two engaged protrusions, the outer end of the vane cavity is communicated with the outer cylinder cavity, a tail seat is arranged at the tail of the core column, a sliding groove is symmetrically arranged on the two sides of the module a, and the tail seat is slidably connected with the sliding groove.

[0005] Preferably, a box-shaped casting ladle is fixedly installed on the module a, and the casting ladle is located on one side of the sprue.

[0006] Preferably, a freely rotatable lead screw is installed on the back of the module a through a support, two threads with opposite directions are arranged on the lead screw, a support arm is arranged on the back side of the core column, the lead screw penetrates the support arm and is screwed with the support arm, and the lead screw rotates to drive the two core columns to move synchronously towards or away from each other.

[0007] Preferably, two rectangular holes along the length direction are symmetrically arranged on the module a, the support arm penetrates the rectangular holes, and a hand wheel is fixedly installed on one end of the lead screw.

[0008] Compared with the prior art, the two core columns of the utility model can move transversely along the sliding groove to realize mold opening and closing, the core columns are driven by the screw rods at the back to move towards each other or away from each other, so that stable demolding can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is a three-dimensional structure schematic view of the utility model;

[0010] Fig. 2 It is a three-dimensional structure schematic view of the utility model;

[0011] Fig. 3 It is a three-dimensional structure schematic view of the utility model.

[0012] In the drawing: 1, module a; 2, module b; 3, sprue; 4, pouring ladle; 5, mold core; 51, core column; 52, protruding tooth; 53, blade cavity; 6, screw rod; 7, hand wheel; 8, outer cylinder cavity. DETAILED DESCRIPTION

[0013] 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 a part of the embodiments of the utility model, not all the embodiments.

[0014] Please refer to Figs. 1-3 The utility model provides a kind of technical scheme: aluminum alloy casting mold of water pump water outlet, including the module a1, module b2 made of 45 steel, mold core 5, mold core 5 is located between module a1 and module b2 and transversely penetrates, module a1 is formed with sprue 3 after being closed with module b2 in upper side, box-shaped pouring ladle 4 is fixedly installed on module a1, pouring ladle 4 is located in the side of sprue 3, pouring ladle 4 will be used to guide flow to sprue 3 with metal liquid.

[0015] Outer side of mold core 5 and the module a1, module b2 between closed mold form outer cylinder cavity 8, the lower end of sprue 3 is communicated with outer cylinder cavity 8, mold core 5 includes two core columns 51, the inner end of core column 51 is evenly provided with a plurality of protruding teeth 52 along circumference, relative two groups of protruding teeth 52 are staggered and engaged, and blade cavity 53 is formed between the two engaged protruding teeth 52, the outer end of blade cavity 53 is communicated with outer cylinder cavity 8, and the blade is integrally formed in the cylinder. The tail of core column 51 is provided with tail seat, and sliding groove is symmetrically arranged on the both sides of module a1, and tail seat and sliding groove are slidably connected.

[0016] The back of the module a1 is provided with a freely rotatable screw rod 6 through a support, the screw rod 6 is provided with two sections of threads in opposite directions, the back side of the core column 51 is provided with a supporting arm, the screw rod 6 penetrates the supporting arm and is screwed with the supporting arm, the screw rod 6 rotates to drive the two core columns 51 to move synchronously towards or away from each other, the module a1 is symmetrically provided with two rectangular holes along the length direction, the supporting arm penetrates the rectangular hole, one end of the screw rod 6 is fixedly provided with a hand wheel 7, and the screw rod 6 is driven to rotate through the hand wheel 7.

[0017] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An aluminum alloy casting mold for a water pump outlet, comprising a mold block a (1), a mold block b (2), and a core (5) which is located between the mold block a (1) and the mold block b (2) and which is transversely penetrated, and a sprue (3) is formed above when the mold block a (1) and the mold block b (2) are combined, characterized in that: The outer side of the mold core (5) and the mold module a (1) and the mold module b (2) after the mold closing form an outer cylinder cavity (8), the lower end of the sprue (3) communicates with the outer cylinder cavity (8), the mold core (5) comprises two core columns (51), the inner end of the core column (51) is uniformly provided with a plurality of convex teeth (52) along the circumference, the two groups of convex teeth (52) are staggered and engaged, the two engaged convex teeth (52) form a blade cavity (53), the outer end of the blade cavity (53) communicates with the outer cylinder cavity (8), the tail of the core column (51) is provided with a tail seat, the mold module a (1) is symmetrically provided with a sliding groove on both sides, and the tail seat and the sliding groove are slidably connected.

2. The aluminum alloy casting mold for a water pump discharge port according to claim 1, characterized by: The mold module a (1) is fixedly provided with a box-shaped casting bucket (4), the casting bucket (4) is located on one side of the sprue (3), and the casting bucket (4) is used for guiding the metal liquid to the sprue (3).

3. The aluminum alloy casting mold for a water pump discharge port according to claim 1, characterized by: The back of the mold module a (1) is provided with a freely rotatable lead screw (6) through a support, the lead screw (6) is provided with two threads in opposite directions, the back side of the core column (51) is provided with an arm, the lead screw (6) penetrates the arm and is screwed therewith, and the lead screw (6) rotates to drive the two core columns (51) to move synchronously towards or away from each other.

4. The aluminum alloy casting mold for a water pump discharge port according to claim 3, characterized by: The mold module a (1) is symmetrically provided with two lengthwise rectangular holes, the arm penetrates the rectangular hole, and one end of the lead screw (6) is fixedly provided with a hand wheel (7).

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