CN216680088U

CN216680088U - Investment casting steel core cladding pellosil wax pattern mould

Info

Publication number: CN216680088U
Application number: CN202122869238.6U
Authority: CN
Inventors: 李江彬; 郭小娇; 吕翠平
Original assignee: Baoding Haoxu Electric Technology Co ltd
Current assignee: Baoding Haoxu Electric Technology Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-06-07
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses an investment casting steel core coated silica gel film wax pattern die which comprises a base, a lower die and an upper die, wherein the lower die is embedded in the center of the upper surface of the base, the steel core is fixedly clamped in a groove formed in the lower die through a clamping mechanism, a silica gel layer wraps the outer side of the steel core, stand columns are welded at four corners of the upper surface of the base, top ends of the four stand columns are welded with a top plate, a hydraulic telescopic rod is fixedly connected to the upper surface of the top plate, and the bottom end of the hydraulic telescopic rod penetrates through the top plate and extends to the outer side and is fixedly connected with the upper die. According to the wax mold with the investment casting steel core coated with the silica gel film, the steel core is coated with the thin silica gel with the thickness of 0.1-0.2mm, and wax slurry can be prevented from flowing into gaps of the steel core to form a joint line or a mold closing sheet in use, so that the problems that the use and the attractiveness are affected by the formed joint line or mold closing sheet, and the removal cost and the removal difficulty are increased are solved.

Description

Investment casting steel core cladding pellosil wax pattern mould

Technical Field

The utility model relates to the technical field of molds, in particular to an investment casting steel core coated silica gel film wax pattern mold.

Background

The die is mainly formed by machining an alloy aluminum material into a cavity structure opposite to that of a part through a carving and milling machine, and is formed by closing 2 or more closing modules and a wear-resistant steel core through positioning pins. And the compression molding wax injection machine injects viscous wax into the wax injection opening of the mold, and the wax injection flow channel is used for filling the cavity to form the wax material part.

However, in the design of the existing mold, the steel core is usually butted or assembled for use, the mold is repeatedly used to generate a gap, a mold closing line or a mold closing sheet is formed under the pressure of a wax injection machine, so that the use and the appearance are affected, and the removal cost and difficulty are increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an investment casting steel core coated silica gel film wax mold to solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the following technical scheme: an investment casting steel core coated silica gel film wax pattern mold comprises a base, a lower mold and an upper mold, wherein the lower mold is embedded in the center of the upper surface of the base, the steel core is fixedly clamped in a groove formed in the upper surface of the lower mold through a clamping mechanism, and the outer side of the steel core is coated with a silica gel layer;

four corner welding of base upper surface have the stand, four the top welding of stand has the roof, roof upper surface rigid coupling has hydraulic telescoping rod, hydraulic telescoping rod's bottom is run through the roof and is extended to the outside and the rigid coupling has last mould, go up the mould cavity that cooperation steel core used is seted up to mould lower surface center department.

As a further description of the above technical solution:

the upper surface of the lower die is welded with a positioning column, and the lower surface of the upper die is provided with a positioning hole matched with the positioning column for use.

As a further description of the above technical solution:

the clamping mechanism comprises a limiting pipe, the limiting pipe is embedded and installed on one side wall of the lower die, a cover plate is welded at one end of the limiting pipe, an inserting rod penetrating through the limiting pipe and extending into the steel core is inserted into the cover plate, a limiting piece is welded in the limiting pipe on the inserting rod, a spring is sleeved in the limiting pipe on the inserting rod, and a limiting block is in threaded connection with the outer side of the cover plate at one end of the inserting rod.

As a further description of the above technical solution:

the clamping mechanisms are arranged in two, and the two clamping mechanisms are mutually symmetrical about a vertical central line of the lower die.

As a further description of the above technical solution:

the base is internally embedded with an electric push rod, and the telescopic end of the electric push rod penetrates through the lower die and the steel core and extends to the outer side.

As a further description of the above technical solution:

go up the mould on the lateral wall turn-on connection have the inlet pipe, the outside cover of inlet pipe is equipped with the heating piece, the embedded electrothermal tube that is equipped with of heating piece, the heating piece outside cover is equipped with outer heat preservation.

The utility model provides an investment casting steel core coated silica gel film wax pattern die. The method has the following beneficial effects:

(1) according to the wax mold for the investment casting steel core coated silica gel film, the steel core is coated with the thin silica gel of 0.1-0.2mm, wax slurry can be prevented from flowing into a steel core gap to form a joint line or a mold closing sheet in use, so that the problems that the use and the appearance are influenced by the formation of the joint line or the mold closing sheet are solved, the removal cost and the removal difficulty are increased, the silica gel is soft and has good stable plasticity, and the silica gel film is very convenient to coat and collect on the steel core.

(2) This investment casting steel core cladding pellosil wax matrix mould, the steel core adopts latch mechanism to fix on the lower mould, and for detachable construction, the change of the steel core of being convenient for realizes that one set of mould corresponds a plurality of steel cores to realize improving dismouting efficiency and saving cost.

Drawings

FIG. 1 is a front view of an investment casting wax pattern mold with a steel core coated with a silicone film according to the present invention;

FIG. 2 is a schematic structural view of a lower mold of the present invention;

fig. 3 is a schematic structural view of an upper mold in the present invention.

Illustration of the drawings:

1. a base; 2. a lower die; 3. a steel core; 31. an electric push rod; 4. a silica gel layer; 5. a column; 6. a top plate; 7. a hydraulic telescopic rod; 8. an upper die; 9. a mold cavity; 10. positioning holes; 11. a positioning column; 12. a clamping mechanism; 13. a limiting pipe; 14. a spring; 15. a limiting sheet; 16. a plug rod; 17. a cover plate; 18. a limiting block; 19. a heating block; 20. an outer insulating layer; 21. an electric heating tube; 22. and (4) feeding a pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, an investment casting steel core coated silica gel film wax mold comprises a base 1, a lower die 2 and an upper die 8, wherein the lower die 2 is embedded and installed at the center of the upper surface of the base 1, the steel core 3 is clamped and fixed in a groove formed in the lower die 2 through a clamping mechanism 12, the outer side of the steel core 3 is coated with a silica gel layer 4, and the thickness of the silica gel layer 4 is 0.1-0.2 mm;

four corner welding of 1 upper surface of base have stand 5, and the top welding of four stand 5 has

roof

6, and 6 upper surfaces rigid couplings of roof have hydraulic telescoping rod 7, and hydraulic telescoping rod 7's bottom is run through roof 6 and is extended to the outside and rigid coupling and have last mould 8, goes up mould 8 lower surface center department and offers the die cavity 9 that cooperation steel core 3 used.

The upper surface welding of lower mould 2 has reference column 11, and the locating hole 10 that cooperation reference column 11 used is seted up to last 8 lower surfaces of mould.

Clamping mechanism 12 includes spacing pipe 13, spacing pipe 13 inlays to establish and installs on the lateral wall of lower mould 2, the one end welding of spacing pipe 13 has apron 17, it has the spliced pole 16 that runs through spacing pipe 13 and extend to in the steel core 3 to peg graft on the apron 17, it has spacing piece 15 to lie in spacing intraductal welding of pipe 13 on the spliced pole 16, it is equipped with spring 14 to lie in spacing intraductal cover of pipe 13 on the spliced pole 16, the outside threaded connection that the one end of spliced pole 16 lies in apron 17 has stopper 18.

In this embodiment, set up the spliced eye that cooperation grafting pole 16 used on the steel core 3, when using, through stopper 18 pulling grafting pole 16, spring 14 contracts for in the spacing pipe 13 is contracted to the one end of grafting pole 16, then place steel core 3 in the recess of seting up on the lower mould 2, do not stimulate stopper 18 this moment, under the spring action of spring 14, drive in the spliced eye that grafting pole 16 inserted and set up on the steel core 3, carry out spacing fixed to steel core 3.

The clamping mechanisms 12 are provided in total in two, and the two clamping mechanisms 12 are symmetrical to each other about a vertical center line of the lower die 2.

An electric push rod 31 is embedded in the base 1, and the telescopic end of the electric push rod 31 penetrates through the lower die 2 and the steel core 3 and extends to the outer side.

In this embodiment, the electric push rod 31 is used for ejecting the formed workpiece, so as to realize automatic discharging.

A feeding pipe 22 is connected to one side wall of the upper die 8 in a conduction mode, a heating block 19 is sleeved on the outer side of the feeding pipe 22, an electric heating pipe 21 is embedded in the heating block 19, and an outer heat insulation layer 20 is sleeved on the outer side of the heating block 19.

In this embodiment, the heating block 19 is used to heat the feeding pipe 22 to prevent the raw material fed by the feeding pipe 22 from cooling and solidifying.

The working principle is as follows: when this investment casting steel core cladding pellosil wax matrix mould used, at first control hydraulic telescoping rod 7 extension, drive and go up mould 8 and move down and closely laminate with lower mould 2, reference column 11 can peg graft in locating hole 10 this moment, then can use through the raw materials of injecting into die cavity 9 of inlet pipe 22.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An investment casting steel core coated silica gel film wax pattern mold comprises a base (1), a lower mold (2) and an upper mold (8), and is characterized in that the lower mold (2) is embedded and installed at the center of the upper surface of the base (1), a steel core (3) is clamped and fixed in a groove formed in the lower mold (2) through a clamping mechanism (12), and a silica gel layer (4) wraps the outer side of the steel core (3);

base (1) upper surface four corners welding have stand (5), four the top welding of stand (5) has roof (6), roof (6) upper surface rigid coupling has hydraulic telescoping rod (7), hydraulic telescoping rod (7) bottom is run through roof (6) and is extended to the outside and rigid coupling and have last mould (8), it locates to offer die cavity (9) that cooperation steel core (3) used to go up mould (8) lower surface center.

2. The investment casting steel core-coated silicone film wax mold according to claim 1, wherein the positioning columns (11) are welded on the upper surface of the lower mold (2), and the positioning holes (10) matched with the positioning columns (11) are formed in the lower surface of the upper mold (8).

3. The investment casting steel core-coated silicone film wax mold mould as claimed in claim 1, wherein the clamping mechanism (12) comprises a limiting tube (13), the limiting tube (13) is embedded and installed on a side wall of the lower mould (2), a cover plate (17) is welded at one end of the limiting tube (13), an insertion rod (16) which penetrates through the limiting tube (13) and extends into the steel core (3) is inserted into the cover plate (17), a limiting sheet (15) is welded in the limiting tube (13) on the insertion rod (16), a spring (14) is sleeved in the limiting tube (13) on the insertion rod (16), and a limiting block (18) is screwed at one end of the insertion rod (16) outside the cover plate (17).

4. The investment casting steel core-coated silicone film wax mold according to claim 1, wherein two clamping mechanisms (12) are provided, and the two clamping mechanisms (12) are symmetrical to each other about a vertical center line of the lower mold (2).

5. The investment casting steel core-coated silicone wax mold die according to claim 1, wherein an electric push rod (31) is embedded in the base (1), and a telescopic end of the electric push rod (31) penetrates through the lower die (2) and the steel core (3) and extends to the outside.

6. The investment casting steel core-coated silica gel wax pattern mold according to claim 1, wherein a feeding pipe (22) is conductively connected to one side wall of the upper mold (8), a heating block (19) is sleeved outside the feeding pipe (22), an electric heating pipe (21) is embedded in the heating block (19), and an outer insulating layer (20) is sleeved outside the heating block (19).