Investment casting mold for high-temperature alloy bent pipe

Abstract

The utility model relates to the field of metal elbow manufacturing, and discloses a high-temperature alloy elbow investment casting mold which comprises a supporting frame, a hydraulic cylinder is arranged on the upper side of the supporting frame, a movable plate is connected to the outer side of the supporting frame in a sliding mode, the lower side of an output shaft of the supporting frame is fixedly connected to the upper side of the movable plate, and a casting mechanism is arranged on the outer side of the supporting frame. The casting mechanism comprises a connecting assembly and a fixing assembly, the fixing assembly comprises a lower die plate, the lower die plate is arranged on the outer side of the supporting frame, an upper die plate is arranged on the upper side of the lower die plate, the lower side of the moving plate is fixedly connected to the top end of the upper die plate, and the upper die plate is provided with a plurality of sets of dies. According to the utility model, a plurality of groups of molds are mounted on the upper mold plate through the connecting assemblies, so that a plurality of groups of investment molds can be manufactured at the same time during investment mold manufacturing, the investment mold manufacturing efficiency is improved, and the molds can be quickly replaced through the connecting assemblies, so that the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to alloy elbow manufacturing field especially relates to a high temperature alloy elbow investment casting mould. BACKGROUND

[0002] In modern industrial field, the application of high temperature alloy elbow is increasingly widespread, high temperature alloy can satisfy the use requirement under extremely severe environment because of its excellent high temperature strength, oxidation resistance and corrosion resistance, when alloy elbow is cast, usually use investment casting, first cast the shell through the lost wax method, then pour metal liquid into the shell, after the metal liquid cools down, the shell is taken off to obtain the finished investment.

[0003] When using the lost wax method to manufacture the investment, usually use single mould to manufacture, and need to cool down after mould wax injection is completed, and when casting different specifications of elbow, need to replace the mould, need to be replaced by the worker, reduce the casting efficiency of investment, therefore, a high temperature alloy elbow investment casting mould is provided to solve the above problems. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortage, the utility model provides a high temperature alloy elbow investment casting mould, aims at improving the problem of "when casting different specifications of elbow, need to replace the mould, need to be replaced by the worker, reduce the casting efficiency of investment" in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a high temperature alloy elbow investment casting mould, including support frame, the support frame upside is provided with hydraulic cylinder, the support frame outside is slidably connected with moving plate, the support frame output shaft downside is fixedly connected on the moving plate upside, the support frame outside is provided with casting mechanism, the casting mechanism includes connecting assembly and fixed assembly, the fixed assembly includes lower mould plate, the lower mould plate is arranged on the support frame outside, the lower mould plate upside is provided with upper mould plate, the moving plate downside is fixedly connected on the upper mould plate top end, the upper mould plate is provided with mould, the mould is provided with multiple groups, the mould top end is fixedly connected with the plug-in column, the plug-in column is inserted in the upper mould plate inner wall.

[0006] Further description of the above technical scheme:

[0007] The connecting assembly includes bidirectional lead screw, the bidirectional lead screw is rotatably connected in the upper mould plate inner wall, the bidirectional lead screw outside is screw connected with the limiting rod, the limiting rod is slidably arranged in the upper mould plate inner wall, the plug-in column outside is provided with the slot, the limiting rod is inserted in the slot inner wall, the upper mould plate right side is fixedly connected with the drive motor, the bidirectional lead screw right side is fixedly connected on the drive motor output shaft left side.

[0008] As a further description of the above technical solutions:

[0009] The upper die plate is provided with a wax injection pipe fixedly connected to the upper side of the upper die plate.

[0010] As a further description of the above technical solutions:

[0011] The upper die plate and the lower die plate are provided with a liquid guide groove on the opposite side.

[0012] As a further description of the above technical solutions:

[0013] The mold is provided with multiple groups, and the multiple groups of molds are arranged on the inner wall of the lower die plate.

[0014] As a further description of the above technical solutions:

[0015] The limiting rod is provided with multiple groups, and each two groups of limiting rods are symmetrically arranged.

[0016] As a further description of the above technical solutions:

[0017] The upper die plate is provided with a heat dissipation assembly, the heat dissipation assembly comprises a heat dissipation fin one, the heat dissipation fin one is fixedly connected to the outer side of the upper die plate, and the lower die plate is provided with a heat dissipation fin two.

[0018] As a further description of the above technical solutions:

[0019] The inner wall of the moving plate is provided with a heat dissipation fan, and the heat dissipation fan is provided with multiple groups.

[0020] The utility model has the advantages of:

[0021] 1、The utility model discloses a connecting assembly is installed multiple molds on the upper die plate, can carry out the manufacture of multiple molds at the same time when carrying out the fused die, improves the production efficiency of fused die, and can quickly replace the mold through the connecting assembly, thereby improving the practicality of the device.

[0022] 2、The utility model discloses the cooperation of the upper die plate, the lower die plate and the heat dissipation assembly, after the manufacture of fused die is completed, multiple heat dissipation fans are used to heat dissipation of multiple heat dissipation fins one and heat dissipation fins two arranged on the upper die plate and the lower die plate, thereby improving the heat dissipation efficiency of the mold, and the cooling efficiency of the fused die can be accelerated. DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the whole device in the utility model;

[0024] Figure 2 It is the three-dimensional structure schematic diagram of the upper die plate and the lower die plate in the utility model;

[0025] Figure 3 It is the three-dimensional structure schematic view of the mold and the plug-in column in the utility model;

[0026] Figure 4 It is the three-dimensional structure schematic view of the bidirectional screw rod and the limiting rod.

[0027] Legend:

[0028] 1, support frame; 2, hydraulic cylinder; 3, moving plate; 41, upper die plate; 42, lower die plate; 43, driving motor; 44, bidirectional screw rod; 45, limiting rod; 46, plug-in slot; 5, mold; 51, plug-in column; 6, liquid guide groove; 7, wax injection pipe; 81, cooling fin one; 82, cooling fin two; 83, cooling fan. DETAILED DESCRIPTION

[0029] 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 part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0030] Refer to Figure 1 Figure 3 An embodiment provided by the utility model: a high-temperature alloy elbow pipe investment casting mold, comprising a support frame 1 as the support structure of the whole device, the upper side of the support frame 1 is provided with a hydraulic cylinder 2, the moving plate 3 is driven to move up and down through the telescopic action of the hydraulic cylinder 2, which is used to control the opening and closing action of the upper die plate 41 and the lower die plate 42, the moving plate 3 is slidably connected to the outer side of the support frame 1, the power of the hydraulic cylinder 2 is transmitted to the upper die plate 41, so that the movement of the upper die plate 41 in the vertical direction is realized, the lower side of the output shaft of the support frame 1 is fixedly connected to the upper side of the moving plate 3, the outer side of the support frame 1 is provided with a casting mechanism, the casting mechanism comprises a casting assembly and a fixing assembly, the fixing assembly comprises a lower die plate 42, which is used in cooperation with the upper die plate 41, when the mold is closed with the upper die plate 41, a plurality of molds 5 jointly form a closed cavity space, which provides the necessary forming space for the investment casting of the high-temperature alloy elbow pipe.

[0031] ​Further, the lower die plate 42 is arranged outside the support frame 1, and the upper die plate 41 is arranged on the upper side of the lower die plate 42 and is inserted on the upper side of the lower die plate 42. The lower side of the moving plate 3 is fixedly connected to the top end of the upper die plate 41. The upper die plate 41 is provided with the mold 5, which is directly used for forming the shape of the high-temperature alloy elbow pipe mold. After the mold 5 is closed, a complete elbow pipe shape cavity is formed to facilitate the injection of wax. The mold 5 is provided with multiple groups, which can simultaneously cast multiple molds during a single wax injection operation, thereby improving the casting efficiency. The top end of the mold 5 is fixedly connected with the insertion column 51, which is inserted into the inner wall of the upper die plate 41. By inserting into the inner wall of the upper die plate 41, the mold 5 is accurately installed and positioned on the upper die plate 41, ensuring that the mold 5 does not shift during casting, thereby ensuring the precision of the cast elbow pipe shape.

[0032] Referring to Figure 3 and Figure 4 , the casting assembly comprises a bidirectional screw rod 44, which is rotatably connected to the inner wall of the upper die plate 41. The rotation of the bidirectional screw rod 44 can drive the multiple groups of limiting rods 45 connected by threads on the outside to move linearly in the opposite direction. In this way, the mold 5 is limited and fixed. The bidirectional screw rod 44 is externally threaded with the limiting rod 45, which is mainly inserted into the inner wall of the insertion slot 46 formed on the outside of the mold 5 and works together with the insertion column 51 to limit the mold 5 in all directions, ensuring that the mold 5 is stably positioned in the predetermined position during casting, preventing the mold 5 from loosening or shifting, which affects the casting quality. The limiting rod 45 slides in the inner wall of the upper die plate 41.

[0033] Further, the insertion column 51 is externally provided with the insertion slot 46 for accommodating the insertion of the limiting rod 45, which cooperates with the limiting rod 45 and the insertion column 51 to stably fix the mold 5, and facilitates the quick replacement of the mold 5, thereby improving the replacement efficiency of the device. The limiting rod 45 is inserted into the inner wall of the insertion slot 46. The right side of the upper die plate 41 is fixedly connected with the driving motor 43, which provides power source for the rotation of the bidirectional screw rod 44. The rotation of the motor drives the rotation of the bidirectional screw rod 44, thereby realizing the movement operation of the limiting rod 45. The bidirectional screw rod 44 is fixedly connected to the left side of the output shaft of the driving motor 43.

[0034] Referring to Figure 1 and Figure 2The upper die plate 41 is fixedly connected with a wax injection pipe 7 on the upper side, which is used for injecting wax into the cavity of the mold 5. The upper die plate 41 is provided with a liquid guide groove 6 on the side opposite to the lower die plate 42, which is used for flowing the molten wax into the mold 5, so that the cavity can be better filled. The mold 5 is provided with multiple groups, and the multiple groups of the mold 5 are arranged on the inner wall of the lower die plate 42. The limiting rods 45 are provided with multiple groups, and each two groups of the limiting rods 45 are symmetrically arranged and can be inserted into the inner wall of the insertion slot 46 on the insertion column 51 from both sides, thereby improving the stability of the mold 5.

[0035] Referring to Figure 1 Figure 3 The upper die plate 41 is provided with a heat dissipation assembly on the outer side, which includes a heat dissipation fin 81 fixedly connected on the outer side of the upper die plate 41. The heat dissipation area of the upper die plate 41 is increased to dissipate the heat generated by the mold 5 during casting to the surrounding environment, thereby playing a role in auxiliary heat dissipation, so as to accelerate the cooling efficiency of the mold. The lower die plate 42 is fixedly connected with a heat dissipation fin 82 on the outer side, which is similar to the heat dissipation fin 81 and also increases the heat dissipation area of the lower die plate 42 to dissipate the heat generated during casting, thereby reducing the cooling time. The inner wall of the moving plate 3 is provided with multiple groups of heat dissipation fans 83. The heat dissipation fans 83 accelerate the air flow by blowing, so as to make the heat dissipate from the device and the surrounding environment faster, thereby further enhancing the heat dissipation effect.

[0036] Working principle: in use, according to the actual processing of the bending pipe specification, multiple groups of the mold 5 are placed on the inner wall of the lower die plate 42, and the insertion column 51 of the other multiple groups of the mold 5 is prepared to be inserted with the upper die plate 41. At the same time, the driving motor 43 is started. The driving motor 43 drives the bidirectional screw rod 44 to rotate, and the bidirectional screw rod 44 drives the multiple groups of the limiting rods 45 to slide on the inner wall of the upper die plate 41 and move linearly in the opposite direction, so that the limiting rods 45 are inserted into the insertion slot 46 of the mold 5 and work together with the insertion column 51 to stably fix the mold 5 on the upper die plate 41.

[0037] At this time, the hydraulic cylinder 2 is started. The output shaft of the hydraulic cylinder 2 is telescopic, which drives the moving plate 3 to slide downward along the outer side of the support frame 1. The moving plate 3 drives the upper die plate 41 to move downward, so that the upper die plate 41 gradually approaches the lower die plate 42 until they are attached, thereby enabling the multiple groups of the mold 5 to be spliced, so as to perform the wax injection operation.

[0038] During and after the wax injection and the mold forming process, the mold 5 and the die plate will generate heat. The heat dissipation fin 81 on the outer side of the upper die plate 41 and the heat dissipation fin 82 on the outer side of the lower die plate 42 increase the heat dissipation area to dissipate the heat generated by the device to the surrounding environment. At the same time, the multiple groups of the heat dissipation fans 83 on the inner wall of the moving plate 3 work to accelerate the air flow by blowing, so as to make the heat dissipate from the device and the surrounding environment faster, thereby accelerating the cooling efficiency of the mold and reducing the cooling time, and preparing for the subsequent process.​

[0039] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A mould for the investment casting of a high-temperature alloy elbow, comprising a support frame (1), characterised in that: The support frame (1) is provided with a hydraulic cylinder (2) on the upper side, and a moving plate (3) is slidably connected to the outer side of the support frame (1), and the output shaft of the support frame (1) is fixedly connected to the upper side of the moving plate (3), and a casting mechanism is arranged on the outer side of the support frame (1), the casting mechanism comprises a connecting assembly and a fixing assembly, the fixing assembly comprises a lower mold plate (42), the lower mold plate (42) is arranged on the outer side of the support frame (1), and an upper mold plate (41) is arranged on the upper side of the lower mold plate (42), the moving plate (3) is fixedly connected to the top end of the upper mold plate (41), and the upper mold plate (41) is provided with a mold (5), the mold (5) is provided with a plurality of groups, the mold (5) is provided with a plurality of groups, and the mold (5) is provided with a plurality of groups.

2. The mold for investment casting a high temperature alloy elbow according to claim 1, wherein: The connecting assembly comprises a bidirectional screw (44), the bidirectional screw (44) is rotatably connected to the inner wall of the upper mold plate (41), the outer side of the bidirectional screw (44) is threadedly connected with a limiting rod (45), the limiting rod (45) slides in the inner wall of the upper mold plate (41), the outer side of the plug-in column (51) is provided with a slot (46), the limiting rod (45) is inserted into the inner wall of the slot (46), and the right side of the upper mold plate (41) is fixedly connected with a driving motor (43). The right side of the bidirectional screw (44) is fixedly connected to the left side of the output shaft of the driving motor (43).

3. The mold for investment casting a high temperature alloy elbow according to claim 1, wherein: The upper mold plate (41) is fixedly connected with a wax injection pipe (7) penetratingly.

4. The mold for investment casting a high temperature alloy elbow according to claim 1, wherein: The upper mold plate (41) is provided with a liquid guide groove (6) on the side opposite to the lower mold plate (42).

5. The mold for investment casting a high temperature alloy elbow according to claim 1, wherein: The mold (5) is provided with a plurality of groups, and the mold (5) is provided with a plurality of groups.

6. The mold for investment casting a high temperature alloy elbow according to claim 2, wherein: The limiting rod (45) is provided with a plurality of groups, and each two groups of the limiting rod (45) are symmetrically arranged.

7. The mold for investment casting a high temperature alloy elbow according to claim 1, wherein: The outer side of the upper mold plate (41) is provided with a heat dissipation assembly, the heat dissipation assembly comprises a heat dissipation fin (81), the heat dissipation fin (81) is fixedly connected to the outer side of the upper mold plate (41), and the outer side of the lower mold plate (42) is fixedly connected with a heat dissipation fin (82).

8. The mold for investment casting a high temperature alloy elbow according to claim 1, wherein: The inner wall of the moving plate (3) is provided with a cooling fan (83), and the cooling fan (83) is provided with a plurality of groups.

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