CN220943084U - Pump body water inlet and outlet section mould - Google Patents

Abstract

The utility model relates to the field of dies and discloses a pump body water inlet and outlet section die which comprises an outer die, wherein a first cavity is formed in the outer die, a first inner die part and a second inner die part are inserted in the outer die in a sealing manner, a third inner die part and a fourth inner die part are inserted in the outer die in a sealing manner respectively, and a forming cavity is formed by surrounding the first inner die part, the second inner die part, the third inner die part, the fourth inner die part and the first cavity together. The water inlet and outlet sections are manufactured in a casting mode through the matched use between the outer die and each inner die, corresponding cavities are arranged on each part of the die, a forming cavity is formed after the corresponding cavities are assembled, and then molten metal is injected into the feeding holes until the forming cavity is formed, so that the method is used for forming various irregular shapes, the manufacturing difficulty is simplified, and the quality of finished products is improved; the cooperation between external mold and each interior mould portion not only is convenient to assemble in order to synthesize the shaping cavity, and through the cooperation of each module after business turn over water section shaping, can simplify the drawing of patterns process, reduces the drawing of patterns degree of difficulty.

Description

Pump body water inlet and outlet section mould

Technical Field

The utility model relates to the technical field of dies, in particular to a pump body water inlet and outlet section die.

Background

The water inlet and outlet sections are part of the pump body of the centrifugal pump, and are usually punched during production and manufacture, and the punching is a forming processing method for obtaining workpieces with required shapes and sizes by applying external force to plates, strips, pipes, sectional materials and the like by using a press machine and a die to enable the plates, strips, pipes, sectional materials and the like to be plastically deformed or separated. However, although this method is feasible, it is often difficult to ensure the quality after molding for some workpieces with complex structures, and the stamping difficulty for complex workpieces is high; the water inlet and outlet section is provided with a plurality of irregularly-shaped surfaces or parts, and the irregularly-shaped surfaces are easy to clamp the stripping between the die and the formed workpiece, so that the water inlet and outlet section is relatively difficult to demould.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to solve the technical problems that: a pump body water inlet and outlet section mold is provided to solve at least one of the problems mentioned in the background art.

In order to solve the technical problems, the utility model adopts a technical scheme that: providing a pump body water inlet and outlet section die, and specifically comprising an outer die formed by mutually buckling a left side die and a right side die along a first direction, wherein a first cavity which is communicated along an up-down direction and a second direction and is matched with the outer contour of the water inlet and outlet section is formed in the outer die, so that after molten metal is added and formed, the outer contour of the water inlet and outlet section is formed; the top and the bottom of the first cavity on the outer mold are respectively provided with a first inner mold part and a second inner mold part which are coaxially distributed and extend into the first cavity from opposite sides, and the opposite sides of the first inner mold part and the second inner mold part are correspondingly provided with inner contours of a sealing side and an opening side of the main body in an adaptation manner, so that the inner contours of the water inlet and outlet ends are formed; the first inner mold part, the second inner mold part, the third inner mold part, the fourth inner mold part and the first cavity are jointly surrounded to form a forming cavity consistent with the outline of the water inlet and outlet section, a feed port communicated with the first cavity is formed in the outer mold, so that metal liquid is injected into the forming cavity through the feed port until the metal liquid fills the forming cavity, the forming cavity is completely consistent with the inner outline and the outer outline of the water inlet and outlet section, even if an irregular surface is also manufactured accurately, and casting of the water inlet and outlet section can be completed after the metal liquid is formed; and the cooperation between each interior mould portion and external mold also can be comparatively convenient to peel off when the drawing of patterns.

A first type groove matched with the outer contour of the side, which is provided with the water discharge screw hole, of the main body, a second type groove matched with the outer contour of the side of the water inlet section and a third type groove matched with the outer contour of the side of the water outlet section are concavely formed on one side, which faces the left side mold, of the right side mold along a first direction, the first type groove is arranged in a penetrating manner up and down, and the second type groove and the third type groove are respectively arranged on two sides of the first type groove along a second direction and penetrate the first type groove along the second direction so as to facilitate the installation of the third inner mold part and the fourth inner mold part; the left side die is concavely provided with a fourth type groove matched with the outer contour of the other side of the main body, a fifth type groove matched with the outer contour of the other side of the water inlet section and a sixth type groove matched with the outer contour of the other side of the water outlet section along a first direction towards one side far away from the right side die on one side of the left side die, the fourth type groove is vertically and continuously arranged, and the fifth type groove and the sixth type groove are respectively arranged on two sides of the fourth type groove along a second direction and are continuously arranged along the second direction so as to facilitate the installation of the first inner die part and the second inner die part and the installation of the third inner die part and the fourth inner die part, and simultaneously facilitate the drawing and demolding during demolding.

The outer die further comprises a first movable block, a male die which is consistent with the inner contour of the water discharge screw hole is convexly arranged on one side surface of the first movable block facing the left die along the first direction towards the left die, and a first mounting groove for the first movable block to be mounted in is concavely arranged at the position of the first type groove corresponding to the water discharge screw hole, so that the part of the outer die used for adapting to the water discharge screw hole is independently arranged, and the possible occurrence of difficult stripping of the right die due to threads in the water discharge screw hole during demolding is avoided.

The top and the bottom of right side mould are concavely set up respectively and are formed with the second mounting groove, and each second mounting groove is respectively along vertical direction and is kept away from right side mould one side and link up, and each second mounting groove is kept away from left side mould one side along first direction and is kept away from left side mould one side and link up, all installs the second loose piece in two second mounting groove departments to be convenient for peel off between right side mould and the business turn over water section after the shaping.

Two guide holes are formed in the opposite side surfaces of the left side die and the right side die, and the two guide holes in the left side die and the right side die are distributed diagonally, so that the left side die and the side surfaces are aligned completely by inserting a bolt during installation, the assembly process is simplified, and the assembly difficulty is reduced.

The inner cavity structure of the water inlet and outlet section is formed by arranging a first forming part and a second forming part which are consistent with the inner contours of the sealing side and the opening side of the main body on opposite sides of the first inner mold part and the second inner mold part respectively, arranging avoidance grooves which are concavely arranged on one sides of the first forming part and the second forming part facing the third inner mold part and are communicated in the second direction in a back-to-back manner, enabling the third inner mold part to pass through the avoidance grooves and extend between the first forming part and the second forming part, and enabling one end of the fourth inner mold part to be abutted against the second forming part, so that the inner cavity structure of the water inlet and outlet section is formed.

The second molding part comprises a first mold core and a second mold core, the top of the first mold core is matched with the outline of the inner wall of the open side of the main body and the outline of the outer wall of the convex ring so that a second cavity which faces the opening of one side of the first molding part is formed in the first mold core, one end of the second mold core penetrates into the second cavity from bottom to top, one end of the second mold core penetrates into the second cavity is matched with the outline of the convex ring so that a cavity with the thickness consistent with the thickness of the convex ring is formed between the first mold core and the second mold core, and one end of the third inner mold part extending to the position between the first molding part and the second molding part is abutted against the second mold core, so that the structural adaptation of the inner cavity of the open side of the main body part is completed.

The bottom of the first mold core is concavely provided with a third mounting groove, and a third movable block is mounted at the third mounting groove, so that demolding between the first mold core and the second mold core is facilitated.

And a concave ring groove is concavely formed on the inner part of the second cavity along the circumferential direction around the inner wall of the second cavity so as to reduce interference between the second mold core and the first mold core.

The concave ring groove is internally provided with a fourth movable block which is in a semi-annular structure, the second mold core can pass through the inner side of the fourth movable block, and the fourth movable block is propped against the second mold core.

The pump body water inlet and outlet section die has at least the following beneficial effects: the water inlet and outlet sections are manufactured in a casting mode through the matched use between the outer die and each inner die, corresponding cavities are arranged on each part of the die, a forming cavity is formed after the corresponding cavities are assembled, and then molten metal is injected into the feeding holes until the forming cavity is formed, so that the method is used for forming various irregular shapes, the manufacturing difficulty is simplified, and the quality of finished products is improved; the cooperation between external mold and each interior mould portion not only is convenient to assemble in order to synthesize the shaping cavity, and through the cooperation of each module after business turn over water section shaping, can simplify the drawing of patterns process, reduces the drawing of patterns degree of difficulty.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

FIG. 1 is a schematic view of a water inlet and outlet section after molding;

FIG. 2 is a schematic view of a mold according to the present utility model;

FIG. 3 is an exploded view of the mold of the present utility model;

FIG. 4 is a left side view of the mold of the present utility model after the left side mold is hidden;

FIG. 5 is a schematic view of the right side mold of the present utility model;

FIG. 6 is a front cross-sectional view of the first mold core, third loose piece and fourth loose piece of the present utility model.

The meaning of the reference numerals in the drawings are:

A main body-11; sealing-111; a water inlet section-12; a water outlet section-13; a water discharge screw hole-14;

An outer mold-2; left side die-21; right side mold-22; a first type groove-221; a second type groove-222; third type groove-223; a second mounting slot-224; a first plug-in section-225; a second cartridge segment-226; a third cartridge segment-227; a fourth plug-in section-228; a first loose piece-23; a male die-231; guide holes-24; a second loose piece-25;

a first inner mold part 3; a first limiting plate-31; a first connection block-32; a first molding part-33;

A second inner mold section-4; a first mold core-41; a second limiting plate-411; a second connection block-412; a second molding part-413; seventh type groove-414; ninth cartridge segment-415; avoidance slot-416; a second mold core-42; a third limiting plate-421; a third connection block-422; a third molding part-423; a third loose piece-43; fourth loose piece-44;

A third inner mold part-5; a fourth limiting plate-51; a fourth molding part-52;

a fourth inner mold part-6; a fifth limiting plate-61; a fifth molding part-62;

Forming chamber-7.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1, the structure of a water inlet/outlet section 13 formed by a forming cavity 7 of a pump body water inlet/outlet section die of the present utility model is shown, wherein the water inlet/outlet section 13 comprises a main body 11 with a hollow interior and an open bottom and a top seal 111, a convex ring positioned at the side of the seal 111 of the inner cavity of the main body 11 and the open top, a water inlet section 12 positioned at one side of the main body 11 and communicated with the inner cavity of the convex ring, and a water outlet section 13 positioned at the other side of the main body 11 and communicated with the inner cavity of the main body 11, the top of the main body 11 is concavely arranged, the surface of the seal 111 is positioned at the concave bottom surface to seal the top of the main body 11, and the whole structure of the main body 11 is in a circular tube shape; the convex ring is positioned in the main body 11 and below the surface of the seal 111, the convex ring is formed by the circular ring shape vertical downward convex arrangement at the surface of the seal 111, for this purpose, a water collecting cavity is formed in the convex ring, an outer ring cavity is formed between the main body 11 and the outer wall of the convex ring, and the bottoms of the convex ring and the main body 11 are all open and arranged so that the water collecting cavity and the outer ring cavity can be communicated through the bottom; the water inlet section 12 and the water outlet section 13 are respectively arranged on the outer walls of the two sides of the main body 11 along the second direction, the end part of the water inlet section 12 extends into the outer annular cavity and is connected with the convex ring, meanwhile, the inner cavity of the water inlet section 12 is communicated with the water collecting cavity, one end of the water outlet section 13 is connected with the main body 11 and is communicated with the outer annular cavity, and a water discharge screw hole 14 communicated with the outer annular cavity is formed in the outer wall of the main body 11.

Referring to fig. 2 to 6, the pump body water inlet/outlet section mold of the present utility model includes an outer mold 2 formed by mutually fastening a left side mold 21 and a right side mold 22 along a first direction, a first inner mold portion 3 sealed and inserted at the top of the outer mold 2, a second inner mold portion 4 sealed and inserted at the bottom of the outer mold 2, a third inner mold portion 5 sealed and inserted at a side wall of one side of the outer mold 2, and a fourth inner mold portion 6 sealed and inserted at a side wall of the other side of the outer mold 2, wherein the first inner mold portion 3 and the second inner mold portion 4 are respectively arranged on two sides of the top and the bottom of the outer mold 2 and coaxially distributed, the third inner mold portion 5 and the fourth inner mold portion 6 are respectively arranged on two side walls of the outer mold 2 along a second direction and coaxially distributed, the first direction and the second direction are mutually perpendicular and are both horizontal, and the distribution of the first direction and the second direction can refer to the directions of an X axis and a Y axis in a coordinate system, which will not be repeated herein. A first cavity penetrating along the vertical up-down direction and the second direction is formed inside the outer mold 2, the first cavity is matched with the overall external contour of the water inlet and outlet section 13, the first inner mold part 3 and the second inner mold part 4 are arranged at positions corresponding to the first cavity and are respectively inserted at the top and the bottom of the first cavity, one end of the first inner mold part 3 and one end of the second inner mold part 4, which faces the first cavity, extend into the first cavity in opposite directions, the contour of the part, extending into the first cavity, of the first inner mold part 3 is matched with the internal contour of the sealing 111 side of the main body 11 in a matched mode, the contour structure, extending into the first cavity, of the second inner mold part 4 is matched with the internal contour of the opening side of the main body 11 in a matched mode, and the internal contour of the opening side of the main body 11 consists of the inner wall of the outer ring cavity and the internal and the external contour of the convex ring. So that the first and second inner mold sections 3, 4, after being inserted into the first cavity, serve as deployment portions for the cavity and closure 111 portions of the body 11. The third internal mold part 5 and the fourth internal mold part 6 are arranged opposite to the first cavity in the second direction, one ends of the third internal mold part 5 and the fourth internal mold part 6 are inserted at the open positions of the first cavity on two sides of the second direction in a sealing way, the third internal mold part 5 and the fourth internal mold part 6 extend into the first cavity in the opposite direction, the structural outline of the third internal mold part 5 is consistent with the structural outline of the inner cavity of the water inlet section 12 to be matched with the structural outline of the inner cavity of the water outlet section 13, the structural outline of the fourth internal mold part 6 is consistent with the structural outline of the inner cavity of the water outlet section 13 to be matched with the structural outline of the first internal mold part 3, the second internal mold part 4, the third internal mold part 5, the fourth internal mold part 6 and the first cavity are jointly enclosed to form a forming cavity 7 which is consistent with the outline of the whole water inlet section 13 to be matched with the first internal mold part, and a feeding port which is communicated with the first cavity and the forming cavity 7 is arranged on the external mold 2.

During assembly, after the left side die 21 and the right side die 22 are aligned and buckled, the first inner die part 3, the second inner die part 4, the third inner die part 5 and the fourth inner die part 6 are sequentially installed at four openings corresponding to the first cavity, all modules are connected in a sealing state except for a feed port through adhesion and the like, molten metal is injected from the feed port until the whole forming cavity 7 and the feed port are filled with the molten metal, after the molten metal is cooled and formed, the left side die 21 and the right side die 22 are sequentially taken down, then the third inner die part 5, the fourth inner die part 6, the first inner die part 3 and the second inner die part 4 are sequentially taken down, the water inlet and outlet section 13 structure shown in fig. 1 can be obtained, and after the structure corresponding to the feed port is ground, a water inlet and outlet section 13 finished product can be obtained.

Referring to fig. 3, 4 and 5, the outer mold 2 includes left and right molds 21 and 22 which are fastened to each other, and a first movable block 23 provided on the right mold 22, the left and right molds 21 and 22 being separated in a first direction, and each of the left and right molds 21 and 22 having a vertical plane on a side facing each other so that the left and right molds 21 and 22 can be fastened to each other. A first groove 221 for matching the external contour of the main body 11 on the side provided with the water discharge screw hole 14, a second groove 222 for matching the external contour of the water inlet section 12, and a third groove 223 for matching the external contour of the water outlet section 13 are concavely formed on the vertical plane of the side of the right side mold 22 facing the left side mold 21 along the first direction toward the side far away from the left side mold 21, the first groove 221 is vertically arranged in a penetrating manner, and the shape of the first groove 221 is matched with the outer wall structure of the main body 11 having half of the water discharge screw hole 14. The second shaped groove 222 and the third shaped groove 223 are respectively arranged on two sides of the first shaped groove 221 along the second direction and are coaxially distributed, the second shaped groove 222 and the third shaped groove 223 penetrate through the first shaped groove 221 along the second direction, the shape of the second shaped groove 222 is consistent with the structure of the outer wall of the water inlet section 12 corresponding to half of the water outlet screw hole 14, the shape of the third shaped groove 223 is consistent with the structure of the outer wall of the water outlet section 13 corresponding to half of the water outlet screw hole 14, so that the shape of the inner walls of the first shaped groove 221, the second shaped groove 222 and the third shaped groove 223 is consistent with the outline of the outer wall of the water outlet section 13 corresponding to half of the water outlet screw hole 14, and the second shaped groove 222 and the third shaped groove 223 are used as one of the forming and arranging of the water inlet section 13 and the outlet section 13.

Referring to fig. 5, in the present embodiment, the top and bottom of the first mold groove 221 are respectively formed with a first insertion section 225 and a second insertion section 226 for respectively sealing and inserting the first and second inner mold portions 3 and 4 therein, respectively, the first inner mold portion 3 is inserted at the first insertion section 225, and the second inner mold portion 4 is inserted at the second insertion section 226, so that the first and second inner mold portions 3 and 4 can be mounted on the outer mold 2 and inserted in the first mold groove 221. A third insertion section 227 is formed on a side of the second mold groove 222 away from the first mold groove 221 along the second direction toward a side away from the first mold groove 221, in which the third inner mold portion 5 is inserted and sealed, so that the third inner mold portion 5 can be connected to the outer mold 2 and inserted into the second mold groove 222. A fourth insertion section 228 into which the fourth inner mold portion 6 is inserted in a sealed manner is formed on a side of the third mold groove 223 remote from the first mold groove 221 in the second direction toward a side remote from the first mold groove 221, so that the fourth inner mold portion 6 can be connected to the outer mold 2 and inserted in the third mold groove 223 while the formation of the first cavity is not affected by the respective inner mold portions.

The vertical plane of the side of the left side die 21 facing the right side die 22 is concavely provided with a fourth type groove which is matched with the external contour of the other side of the main body 11, which is not provided with the water discharge screw hole 14, a fifth type groove which is matched with the external contour of the other side of the water inlet section 12 and a sixth type groove which is matched with the external contour of the other side of the water outlet section 13 along the first direction towards the side far away from the right side die 22, the fourth type groove is vertically through-arranged, and the shape of the fourth type groove is matched with the outer wall structure of the half of the main body 11, which is not provided with the water discharge screw hole 14. The fifth type groove and the sixth type groove are respectively arranged on two sides of the fourth type groove along the second direction and are coaxially distributed, the fifth type groove and the sixth type groove are communicated with the fourth type groove along the second direction, the shape of the fifth type groove is consistent with the outer wall structure of the water inlet section 12 corresponding to the rest half, the shape of the sixth type groove is consistent with the outer wall structure of the water outlet section 13 corresponding to the rest half, so that the inner wall shapes of the fourth type groove, the fifth type groove and the sixth type groove are consistent with the outline of the other half of the water inlet section 13 without a water outlet screw hole 14, the first type groove 221, the second type groove 222, the third type groove 223, the fourth type groove, the fifth type groove and the sixth type groove are jointly arranged to form a cavity body which is consistent with the outline of the outer structure of the water inlet section 13 after the left side mold 21 and the right side mold 22 are buckled, the first type groove 221 and the fourth type groove form the outer outline structure of the main body 11, the second type groove 222 and the fifth type groove form the outline structure of the water inlet section 12, and the third type groove 223 form the outline of the outer structure of the water outlet section 13.

In this embodiment, the top and bottom of the fourth mold groove are respectively formed with a fifth insertion section and a sixth insertion section facing away from each other, in which the first inner mold portion 3 and the second inner mold portion 4 are respectively inserted in a sealing manner, the first inner mold portion 3 is inserted in the fifth insertion section, and the second inner mold portion 4 is inserted in the sixth insertion section, so that the first inner mold portion 3 and the second inner mold portion 4 can be mounted on the outer mold 2 and pass through the fourth mold groove. A seventh inserting section for the third inner mold part 5 to be inserted in a sealing manner is formed on one side, far away from the fourth type groove, of the fifth type groove along the second direction towards one side, far away from the fourth type groove, so that the third inner mold part 5 can be connected to the outer mold 2 and pass through the fifth type groove. An eighth inserting section for the fourth inner mold part 6 to be inserted and installed in a sealing way is formed on one side, far away from the fourth type groove, of the sixth type groove along the second direction towards one side, far away from the fourth type groove, so that the fourth inner mold part 6 can be connected to the outer mold 2 and is arranged in the sixth type groove in a penetrating way, and meanwhile, the formation of the first cavity is not affected by all inner mold parts.

Referring to fig. 3 and 5, a first movable block 23 is installed on the right side mold 22 at a position corresponding to the drain screw hole 14. A male die 231 conforming to the inner contour of the drain screw hole 14 is formed to protrude toward the left side die 21 in the first direction on a side surface of the first movable block 23 facing the left side die 21 so that the drain screw hole 14 can be formed in the water inlet and outlet section 13 after molding. The first mounting groove for mounting the first movable block 23 is concavely arranged at the position corresponding to the water discharge screw hole 14 on the first type groove 221, the first movable block 23 is mounted at the first mounting groove during assembly, one side surface of the first movable block 23 facing the left side die 21 and the inner wall of the right side die 22 facing the left side die 21 form the first type groove 221 together, so that the first movable block 23 does not influence the formation of the water inlet and outlet section 13, the right side die 22 can be conveniently stripped from the water inlet and outlet section 13 after the water inlet and outlet section 13 is formed, the inner wall of the water discharge screw hole 14 is provided with internal threads, and the shape of the main body 11 is a circular tube shape, and the second type groove 222 and the third type groove 223 correspond to the water inlet and outlet section 12, so that the right side die 22 cannot rotate relative to the water inlet and outlet section 13 after the formation, the internal threads of the water discharge screw hole 14 can limit the horizontal movement of the right side die 22 relative to the water inlet and outlet section 13 in the first direction or the second direction, the internal threads of the water inlet and outlet section 13 can be damaged when the water inlet and outlet section 13 is hard to be stripped, and the first movable block 22 can be stripped from the water inlet and outlet section 13 along the direction of the water inlet and outlet section 13 when the water inlet and outlet section 13 is difficult to be stripped.

Preferably, the top and bottom of the right side mold 22 are respectively concavely provided with a second mounting groove 224 so that two second mounting grooves 224 are formed on the right side mold 22, the second mounting groove 224 at the top is vertically penetrated upward and penetrated toward the left side mold 21 side; the second installing grooves 224 at the bottom are vertically penetrated downwards and penetrated towards the left side die 21, the second movable blocks 25 are installed at the positions of the two second installing grooves 224, the second movable blocks 25 at the top are positioned in the first inserting section 225, the second movable blocks 25 at the bottom are positioned in the second inserting section 226, so that the two second movable blocks 25 respectively lean against the first inner die part 3 and the second inner die part 4, and torque is transmitted when the first inner die part 3 and the second inner die part 4 are assembled on the outer die 2, so that the first inner die part 3 and the first inserting section 225 with the same diameter are matched, and the second inner die part 4 and the second inserting section 226 with the same diameter are matched.

Preferably, two guide holes 24 are arranged on opposite sides of the left die 21 and the right die 22, the guide holes 24 are in cylindrical groove structures, the two guide holes 24 on the left die 21 and the right die 22 are diagonally distributed, when the left die 21 and the right die 22 are assembled, the left die 21 and the right die 22 are aligned by a vertical plane and have no alignment structure on the vertical plane, so that the left die 21 and the right die 22 are difficult to align when assembled, once the left die 21 and the right die 22 are not aligned, the structure of the water inlet and outlet section 13 after molding is seriously influenced, and the left die 21 and the right die 22 are scrapped, so that waste is caused.

Referring to fig. 3, the first inner mold part 3 includes a first limiting plate 31, a first connecting block 32 and a first molding part 33 which are sequentially connected from top to bottom and integrally molded, the first connecting block 32 has a structure and a size which are consistent with those of the first and fifth inserting sections 225 and 225 to be matched, the diameter of the first limiting plate 31 is larger than that of the first connecting block 32 and the first inserting section 225, so that the first limiting plate 31 can limit the depth of the first molding part 33 into the first cavity when the first inner mold part 3 is mounted on the outer mold 2, the first connecting block 32 is used for blocking the buckled first and fifth inserting sections 225 and 33, and the first molding part 33 extends into the first cavity, and meanwhile, the structural profile of the first molding part 33 is consistent with the inner profile of the sealing 111 side of the main body 11 to be matched.

The second inner mold part 4 comprises a first mold core 41 and a second mold core 42 positioned inside the first mold core 41, the first mold core 41 comprises a second limiting plate 411, a second connecting block 412 and a second molding part 413 which are sequentially connected from bottom to top and are integrally molded, the structure and the size of the second connecting block 412 are consistent with those of the second inserting section 226 and the sixth inserting section so as to be matched, the diameter of the second limiting plate 411 is larger than that of the second inserting section 226 and the sixth inserting section, when the second inner mold part 4 is mounted on the outer mold 2, the second limiting plate 411 can limit the depth of the second molding part 413 into the first cavity, the second connecting block 412 is used for blocking the second inserting section 226 and the sixth inserting section after being buckled, the second molding part 413 extends into the first cavity, and meanwhile, the structural outline of the second molding part 413 is consistent with the inner outline of the open side of the main body 11 so as to be matched. An avoidance groove 416 is formed on one side of the first molding part 33 and one side of the second molding part 413 facing the third inner mold part 5 in a back-to-back manner, the avoidance groove 416 is communicated in the second direction, the third inner mold part 5 passes through the avoidance groove 416, extends between the first molding part 33 and the second molding part 413 and abuts against the second mold core 42, so that the water inlet section 12 of the molded water inlet and outlet section 13 is communicated with the water collecting cavity, and one end of the fourth inner mold part 6 abuts against the second molding part 413, so that the water outlet section 13 of the molded water inlet and outlet section 13 is communicated with the outer ring cavity.

Referring to fig. 6, specifically, the second molding portion 413 at the top of the first mold core 41 is contoured to match the contours of the inner wall and the outer wall of the bead on the open side of the main body 11, so that a second cavity open toward the first molding portion 33 is formed inside the first mold core 41. Preferably, the second cavity includes a seventh shaped groove 414 which is consistent with the outline of the outer cavity to be matched with the outline of the outer cavity, a ninth inserting section 415 with a diameter smaller than that of the seventh shaped groove 414 is formed at the bottom of the seventh shaped groove 414 in a downward extending mode, the second mold core 42 includes a third limiting plate 421, a third connecting block 422 and a third forming part 423 which are sequentially connected from bottom to top and are integrally formed, the diameter of the third limiting plate 421 is larger than that of the second cavity, the third forming part 423 sequentially passes through the ninth inserting section 415 from bottom to top and penetrates into the seventh shaped groove 414, and the diameter of the third connecting block 422 is the same as that of the ninth inserting section 415 to be plugged in the ninth inserting section 415. The third molding portion 423 is adapted to the inner contour of the collar so that a cavity having a thickness consistent with the thickness of the collar is formed between the first mold core 41 and the second mold core 42, one end of the third inner mold portion 5 extending between the first molding portion 33 and the second molding portion 413 abuts against the third molding portion 423 of the second mold core 42, and one end of the fourth inner mold portion 6 abuts against the first mold core 41.

Preferably, the bottom of the ninth inserting section 415 of the first mold core 41 is concavely provided with a third mounting groove penetrating downward and facing the second mold core 42, and a third movable block 43 is mounted at the third mounting groove to transmit torque when assembling the second mold core 42 to reduce the difficulty of mounting the second mold core 42.

Preferably, a concave groove 45 is concavely formed on the inside of the ninth insertion section 415 of the second cavity around the inner wall of the second cavity in the circumferential direction to reduce interference between the second mold core 42 and the first mold core 41. A fourth movable block 44 is installed in the concave ring groove 45, the fourth movable block 44 has a semi-annular structure, the second mold core 42 can pass through the inner side of the fourth movable block 44, and the fourth movable block 44 abuts against the second mold core 42, so that the tightness between the first mold core 41 and the second mold core 42 can be increased.

The third inner mold part 5 comprises a fourth limiting plate 51 with the diameter larger than that of the third inserting section 227, a fourth connecting block inserted on the third inserting section 227 and a fourth forming part 52 which is consistent with the outline of the inner cavity of the water inlet section 12 to be matched with the outline, and the fourth connecting block blocks the third inserting section 227 and the seventh inserting section after the mold is assembled.

The fourth inner mold part 6 comprises a fifth limiting plate 61 with the diameter larger than that of the fourth inserting section 228, a fifth connecting block inserted on the fourth inserting section 228 and a fifth forming part 62 which is consistent with the inner cavity contour of the water outlet section 13 to be matched with the inner cavity contour, and the fifth connecting block blocks the fourth inserting section 228 and the eighth inserting section after the mold is assembled.

Claims (10)

1. The utility model provides a pump body business turn over water section mould for the casting business turn over water section, business turn over water section include inside cavity and bottom are open and the top seals the main part, be located main part inner chamber seal side and the open bulge loop in top, locate main part one side and communicate the water section of protruding circle inner chamber and locate main part opposite side and communicate the play water section of main part inner chamber, offered the screw that drains of a intercommunication main part inner chamber in the main part, its characterized in that includes:

The water inlet and outlet section comprises an outer mold formed by mutually buckling a left side mold and a right side mold along a first direction, wherein a first cavity which is communicated along an up-down direction and a second direction and is matched with the outer contour of the water inlet and outlet section is formed in the outer mold, a first inner mold part and a second inner mold part which are coaxially distributed and extend into the first cavity from opposite sides are respectively inserted in the top and the bottom of the first cavity on the outer mold in a sealing way, and the opposite sides of the first inner mold part and the second inner mold part are correspondingly arranged in a matching way on the inner contour of the sealing side and the opening side of the main body; the two sides of the outer die, which are positioned on the first die cavity in the second direction, are respectively and hermetically inserted with a third inner die part which is coaxially distributed and extends to the first die cavity in the opposite direction and is matched with the inner contour of the water inlet section, and a fourth inner die part which is matched with the inner contour of the water outlet section, wherein the first inner die part, the second inner die part, the third inner die part, the fourth inner die part and the first die cavity are jointly enclosed to form a forming cavity which is consistent with the contour of the water inlet section and the water outlet section, and a feed inlet which is communicated with the first die cavity is formed in the outer die.

2. The pump body water inlet and outlet section die set according to claim 1, wherein:

A first type groove matched with the outer contour of the side, which is provided with the water discharge screw hole, of the main body, a second type groove matched with the outer contour of the side of the water inlet section and a third type groove matched with the outer contour of the side of the water outlet section are concavely formed on one side, which faces the left side mold, of the right side mold along a first direction, the first type groove is arranged in a penetrating manner up and down, and the second type groove and the third type groove are respectively arranged on two sides of the first type groove along a second direction and penetrate through the first type groove along the second direction;

The left side die is concavely provided with a fourth type groove matched with the outer contour of the other side of the main body, a fifth type groove matched with the outer contour of the other side of the water inlet section and a sixth type groove matched with the outer contour of the other side of the water outlet section along a first direction towards one side far away from the right side die on one side of the left side die, the fourth type groove is vertically and continuously arranged, and the fifth type groove and the sixth type groove are respectively arranged on two sides of the fourth type groove along a second direction and are continuously arranged along the second direction.

3. The pump body water inlet and outlet section die set according to claim 2, wherein: the outer die further comprises a first movable block, a male die which is consistent with the inner contour of the water discharge screw hole is convexly arranged on one side surface of the first movable block facing the left die along the first direction towards the left die, and a first mounting groove for the first movable block to be mounted in is concavely arranged on the first groove at the position corresponding to the water discharge screw hole.

4. A pump body water inlet and outlet section die as claimed in claim 3, wherein: the top and the bottom of right side mould are concavely set up respectively and are formed with the second mounting groove, and each second mounting groove is respectively along vertical direction and is kept away from right side mould one side and link up, and each second mounting groove is kept away from left side mould one side along first direction and is kept away from left side mould one side and link up, all installs the second loose piece in two second mounting groove departments.

5. The pump body water inlet and outlet section die set forth in claim 4, wherein: two guide holes are arranged on one side surface of the left side die and the right side die, which are opposite to each other, and the two guide holes on the left side die and the right side die are diagonally distributed.

6. The pump body water inlet and outlet section die set according to claim 1, wherein: the first forming part and the second forming part which are consistent with the inner contours of the sealing side and the opening side of the main body are respectively formed on one sides of the first inner mold part and the second inner mold part which are opposite to each other, the side of the first forming part and the side of the second forming part which faces the third inner mold part are opposite to each other, the avoidance grooves are concavely formed in the avoidance grooves and are communicated in the second direction, the third inner mold part penetrates through the avoidance grooves and extends between the first forming part and the second forming part, and one end of the fourth inner mold part is abutted against the second forming part.

7. The pump body water inlet and outlet section die set forth in claim 6, wherein: the second molding part comprises a first mold core and a second mold core, the top of the first mold core is matched with the outline of the inner wall of the open side of the main body and the outline of the outer wall of the convex ring so that a second cavity which faces the opening of one side of the first molding part is formed in the first mold core, one end of the second mold core penetrates into the second cavity from bottom to top, one end of the second mold core penetrating into the second cavity is matched with the outline of the convex ring so that a cavity with the thickness consistent with the thickness of the convex ring is formed between the first mold core and the second mold core, and one end of the third inner mold part extending to the position between the first molding part and the second molding part is abutted against the second mold core.

8. The pump body water inlet and outlet section die set forth in claim 7, wherein: the bottom of the first mold core is concavely provided with a third mounting groove, and a third loose piece is mounted at the third mounting groove.

9. The pump body water inlet and outlet section die set forth in claim 8, wherein: and a concave ring groove is concavely formed on the inner part of the second cavity along the circumferential direction around the inner wall of the second cavity.

10. The pump body water inlet and outlet section die set forth in claim 9, wherein: and a fourth movable block is arranged in the concave ring groove, the fourth movable block is of a semi-annular structure, the second mold core can pass through the inner side of the fourth movable block, and the fourth movable block is propped against the second mold core.