Wax mould with cold wax block supporting function for investment precision casting

Abstract

The utility model provides a wax mould for investment precision casting with a cold wax block supporting function, which comprises a base and an inner mould cylinder, a coaxial supporting piece is fixedly mounted on the base, the base is connected with the bottom of the inner mould cylinder in a pluggable manner, and an outer mould cylinder is sleeved outside the inner mould cylinder; the outer mold cylinder is in meshed connection with the inner mold cylinder; the utility model not only can reduce the use of wax rod raw materials, but also avoids the trouble of winding adhesive tapes, and is more flexible and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of investment casting, especially relates to a wax mold mold for investment casting with cold wax block supporting effect. BACKGROUND

[0002] Wax mold, also known as investment mold, is mainly used for forming the cavity pattern of castings. In the process of investment casting, the wax mold plays a crucial role. To obtain castings with high dimensional accuracy and surface finish, the wax mold itself should have high dimensional accuracy and surface finish.

[0003] As known, in the process of wax mold making, wax mold steel cups are needed, but the existing wax mold steel cups need long supporting wax rods when fixing cold wax blocks, which easily causes unnecessary waste, and when pouring, the holes of the steel cups need to be plugged with adhesive tape, which needs to be disassembled again in the later stage, causing great inconvenience.

[0004] Therefore, it is necessary to invent a wax mold mold for investment casting with cold wax block supporting effect. SUMMARY

[0005] To solve the above technical problems, the utility model provides a wax mold mold for investment casting with cold wax block supporting effect, which adopts the technical scheme of: a wax mold mold for investment casting with cold wax block supporting effect, comprising a base and an inner mold cylinder, wherein: the base is fixedly installed with a coaxial supporting piece, and the base is pull-insertedly connected with the bottom of the inner mold cylinder, and the outer part of the inner mold cylinder is sleeved with an outer mold cylinder; the outer mold cylinder is engagedly connected with the inner mold cylinder.

[0006] Preferably, coaxial wax discharge holes are provided between the base and the supporting piece.

[0007] Preferably, a fixing cavity for placing and fixing wax is provided at the top end of the supporting piece, and the fixing cavity is coaxially communicated with the wax discharge hole, and the inner diameter of the fixing cavity is larger than that of the wax discharge hole.

[0008] Preferably, an integral extension pipe sleeve is arranged at the top end of the inner mold cylinder, and the inner diameter of the extension pipe sleeve is the same as that of the inner mold cylinder, and the diameter of the extension pipe sleeve is smaller than that of the inner mold cylinder; the outer mold cylinder is sleeved on the extension pipe sleeve, and the outer mold cylinder is slidingly connected with the extension pipe sleeve.

[0009] Preferably, a plurality of inner holes are uniformly and through-provided on the surface of the inner mold cylinder.

[0010] Preferably, an integral inner necking is arranged at each end of the outer mold cylinder, and the inner neckings are respectively at the two ends of the inner mold cylinder, and one of the inner neckings is slidingly sleeved outside the extension pipe sleeve; the inner diameter of the inner necking is smaller than the diameter of the inner mold cylinder, and the inner diameter of the inner necking is larger than the diameter of the extension pipe sleeve.

[0011] Preferably, the surface of the outer mold cylinder is uniformly provided with a plurality of outer holes corresponding to the inner holes.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a support piece is provided, when supporting the cold wax block, can reduce the use of wax stick raw material to reduce the waste of wax stick raw material.

[0014] The utility model discloses the setting of inner mold cylinder and outer mold cylinder can when pouring gypsum in the inner mold cylinder, can be through the outer mold cylinder and block the inner hole on the inner mold cylinder to avoid the trouble of sticking adhesive tape, and it is more convenient and flexible. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the outer hole and the inner hole staggered structure schematic diagram of the utility model.

[0016] Fig. 2 It is the outer hole and the inner hole coincident structure schematic diagram of the utility model.

[0017] Fig. 3 It is the full section structure schematic diagram of the utility model.

[0018] In the drawing:

[0019] Base 1, support piece 2, wax discharging hole 3, fixed cavity 4, inner mold cylinder 5, outer mold cylinder 6, extension pipe sleeve 7, inner closing 8, inner hole 9, outer hole 10, fixed wax 11. DETAILED DESCRIPTION

[0020] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment only is the embodiment of a part of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments that the person skilled in the art obtains without making the creative labor should belong to the scope of the protection of the utility model.

[0021] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The utility model will be further described below in combination with the drawings: Embodiments

[0023] Referring to Figs. 1-3 A wax mold mold for investment casting with cold wax block supporting effect, comprising a base 1 and an inner mold cylinder 5, wherein: the coaxial support 2 is fixedly installed on the base 1, so as to support the cold wax block through the support 2, and the base 1 is pull-insertedly connected with the bottom of the inner mold cylinder 5, so that a pouring cavity is formed between the base 1 and the inner mold cylinder 5, and the base 1 and the inner mold cylinder 5 are convenient to disassemble, the outer mold cylinder 6 is arranged outside the inner mold cylinder 5, through the arrangement of the outer mold cylinder 6, the inner hole 9 on the inner mold cylinder 5 can be plugged before pouring into the inner mold cylinder 5, and the outer mold cylinder 6 is engagedly connected with the inner mold cylinder 5, so as to ensure the tightness and firmness between the outer mold cylinder 6 and the inner mold cylinder 5.

[0024] The coaxial wax discharge hole 3 is provided between the base 1 and the support 2, so that the cold wax block and the fixed wax 11 can be discharged through the wax discharge hole 3 after melting.

[0025] The top end of the support 2 is provided with a fixed cavity 4 for placing the fixed wax 11, so that during use, only a small amount of fixed wax 11 is needed to fix the cold wax block on the support 2, and the fixed cavity 4 is coaxially communicated with the wax discharge hole 3, so that the cold wax block and the fixed wax 11 after melting can be discharged through the wax discharge hole 3, and the inner diameter of the fixed cavity 4 is greater than that of the wax discharge hole 3.

[0026] The top end of the inner mold cylinder 5 is provided with an integral extension sleeve 7, so as to provide a required force application point for rotating the outer mold cylinder 6, and the inner diameter of the extension sleeve 7 is the same as the inner diameter of the inner mold cylinder 5, and the diameter of the extension sleeve 7 is smaller than the diameter of the inner mold cylinder 5; the outer mold cylinder 6 is sleeved on the extension sleeve 7, and the outer mold cylinder 6 and the extension sleeve 7 are in sliding connection.

[0027] The surface of the inner mold cylinder 5 is uniformly and throughly provided with a plurality of inner holes 9, so as to increase the contact area between the gypsum and water when the gypsum is removed after pouring.

[0028] Both ends of the outer mold cylinder 6 are provided with integral inner recesses 8, and the inner recesses 8 are respectively located at both ends of the inner mold cylinder 5, one of the inner recesses 8 is sleeved on the outside of the extension sleeve 7, so as to prevent the inner mold cylinder 5 from accidentally falling off the outer mold cylinder 6; the inner diameter of the inner recess 8 is smaller than the diameter of the inner mold cylinder 5, and the inner diameter of the inner recess 8 is greater than the diameter of the extension sleeve 7; the length of the outer mold cylinder 6 is greater than the length of the inner mold cylinder 5.

[0029] The surface of the outer mold cylinder 6 is uniformly and throughly provided with a plurality of outer holes 10 corresponding to the inner holes 9, so as to overlap or stagger the outer holes 10 and the inner holes 9, so as to open or close the inner holes 9.

[0030] In the embodiment, when in use, the base 1 is separated from the inner mold cylinder 5, the required fixed wax 11 is placed in the fixing cavity 4, and the fixed wax 11 is heated to fix the cold wax block on the support 2;

[0031] Then the base 1 and the inner mold cylinder 5 are combined together, at this time, the outer mold cylinder 6 is rotated clockwise, the outer holes 10 on the outer mold cylinder 6 are staggered with the inner holes 9 on the inner mold cylinder 5, and then the liquid gypsum required for the wax mold or other liquid raw materials required for the wax mold can be poured into the inner mold cylinder 5;

[0032] The subsequent corresponding heating equipment is placed in the heating equipment, the fixed wax 11 and the cold wax block are melted, and the melted fixed wax 11 and the cold wax block are discharged through the wax discharge hole 3;

[0033] At this time, the gypsum mold with an inner cavity is formed.

[0034] The technical scheme of the utility model, or the technical personnel in the utility model technical scheme inspired by, design similar technical scheme, and reach the above technical effect, all fall into the protection scope of the utility model.

Claims

1. A wax pattern mold for investment precision casting having a cold wax block supporting function, characterized by: Including base (1) and inner mould cylinder (5), wherein: the coaxial support (2) is fixedly installed on the base (1), and the base (1) is pull-inserted with the bottom of the inner mould cylinder (5), the outer portion of the inner mould cylinder (5) is provided with the outer mould cylinder (6), and the outer mould cylinder (6) is engaged with the inner mould cylinder (5).

2. A wax pattern mold for investment precision casting having a cold wax block support function according to claim 1, characterized in that: The coaxial wax discharging hole (3) is provided between the base (1) and the support (2).

3. A wax pattern mold for investment precision casting having a cold wax block support function according to claim 2, characterized in that: The top end of the support (2) is provided with the fixed cavity (4) for placing and fixing wax (11), and the fixed cavity (4) is coaxially communicated with the wax discharging hole (3), and the inner diameter of the fixed cavity (4) is larger than the inner diameter of the wax discharging hole (3).

4. A wax pattern mold for investment precision casting having a cold wax block support function according to claim 1, characterized in that: The top end of the inner mould cylinder (5) is provided with the integral extension pipe sleeve (7), and the inner diameter of the extension pipe sleeve (7) is same with the inner diameter of the inner mould cylinder (5), and the diameter of the extension pipe sleeve (7) is smaller than the diameter of the inner mould cylinder (5), the outer mould cylinder (6) is sleeved on the extension pipe sleeve (7), and the outer mould cylinder (6) is slidably connected with the extension pipe sleeve (7).

5. A wax pattern mold for investment precision casting having a cold wax block support function according to claim 4, characterized in that: The surface of the inner mould cylinder (5) is uniformly provided with a plurality of inner holes (9).

6. A wax pattern mold for investment precision casting having a cold wax block support function according to claim 4, characterized in that: The both ends of the outer mould cylinder (6) are respectively provided with the integral inner recesses (8), and the inner recesses (8) are respectively located at the both ends of the inner mould cylinder (5), one of the inner recesses (8) is slidably sleeved on the outside of the extension pipe sleeve (7), the inner diameter of the inner recess (8) is smaller than the diameter of the inner mould cylinder (5), and the inner diameter of the inner recess (8) is larger than the diameter of the extension pipe sleeve (7).

7. A wax pattern mold for investment precision casting having a cold wax block support function according to claim 6, characterized in that: The surface of the outer mould cylinder (6) is uniformly provided with a plurality of outer holes (10) corresponding to the inner holes (9).

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