CN217666242U

CN217666242U - Accelerate auxiliary assembly of shell mould sintering process

Info

Publication number: CN217666242U
Application number: CN202123160134.4U
Authority: CN
Inventors: 潘义震; 严亮
Original assignee: Shuyang Huarui Metal Products Co ltd
Current assignee: Shuyang Huarui Metal Products Co ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-10-28
Anticipated expiration: 2031-12-14

Abstract

The utility model discloses an accelerate auxiliary assembly of shell mould sintering process relates to casting equipment technical field. The utility model discloses a first sintering chamber and second sintering chamber, the top intercommunication in first sintering chamber has the heating chamber, the top in heating chamber be provided with first sintering chamber fixed connection's water tank, the top of water tank is connected with the inlet tube, the intercommunication has outlet pipe and back flow on the water tank, be provided with the water pump on the outlet pipe, second sintering intracavity is provided with the preheating pipe that the structure is the U-shaped. The utility model discloses a two sintering chamber designs, has abandoned current air exhaust formula heat recovery, after the sintering of first sintering intracavity is accomplished, can be with heat conduction to second sintering intracavity to preheat second sintering intracavity portion, make full use of the heat that first sintering chamber sintering produced, and can not cause the pollution to second sintering chamber, heat conduction efficiency is high, environmental protection and energy saving simultaneously has reduced manufacturing cost.

Description

Accelerate auxiliary assembly of shell mould sintering process

Technical Field

The utility model relates to a casting equipment technical field, concretely relates to accelerate auxiliary assembly of shell mould sintering process.

Background

Dewaxing casting is one of precision casting, and the manufacturing process comprises the following steps: the wax pattern is first produced, then assembled to form a wax tree, a casting mold is produced and formed from the wax tree, then the mold is assembled with a die head, a molten raw material (e.g., molten metal, glass solution, etc.) is injected from a gate of the die head, molded in the mold, and finally the molded product is taken out by breaking the mold.

In the dewaxing casting process, after the shell mold is manufactured by using the wax mold, the wax mold in the shell mold needs to be removed, and the common mode is a combustion mode, namely the whole shell mold is placed into a sintering furnace to be combusted, the temperature of the sintering furnace can reach about 1000 ℃, in the high-temperature environment, the wax mold is removed through combustion, and the shell mold is sintered and solidified after high-temperature combustion.

Because the temperature of sintering is very high, even retrieve partial waste heat, still will discharge a large amount of used heat, lead to the waste of energy, current heat recovery adopts the air exhaust formula usually, take out the waste heat in the sintering chamber to another sintering intracavity through the pipeline promptly, in order to realize the preheating in another sintering chamber, nevertheless because can produce harmful gas and dust in the sintering process, the air exhaust mode leads to the fact the pollution to another sintering chamber easily, if filter the gas of taking out, then can increase manufacturing cost, consequently, propose an auxiliary assembly who accelerates shell mould sintering process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: can produce harmful gas and dust in solving sintering process, the mode of bleeding causes the pollution to another sintering chamber easily, if filter the gas of taking out, then can increase manufacturing cost's technical problem, the utility model provides an accelerate shell mould sintering process's auxiliary assembly.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides an accelerate auxiliary assembly of shell mould sintering process, includes first sintering chamber and second sintering chamber, the top intercommunication in first sintering chamber has the heating chamber, the top in heating chamber be provided with first sintering chamber fixed connection's water tank, the top of water tank is connected with the inlet tube, the intercommunication has outlet pipe and back flow on the water tank, be provided with the water pump on the outlet pipe, second sintering intracavity is provided with the preheating pipe that the structure is the U-shaped, the array symmetry has set firmly a plurality of metal fin on the preheating pipe, the outlet pipe with the back flow respectively with the both ends of preheating pipe are connected.

Further, the top annular array of first sintering chamber sets firmly and is no less than three support column, the support column with water tank fixed connection.

Furthermore, a transparent observation window is arranged on the water tank.

Further, the joint of the heating cavity and the water tank is in a funnel shape.

Further, the sintering device further comprises a three-way exhaust pipe, wherein two ends of the three-way exhaust pipe are respectively communicated with the heating cavity and the second sintering cavity.

Furthermore, a baffle is movably arranged in the second sintering cavity.

The utility model has the advantages as follows:

1. the utility model discloses a two sintering chamber designs, has abandoned current air exhaust formula heat recovery, after the sintering of first sintering intracavity is accomplished, can be with heat conduction to second sintering intracavity to preheat second sintering intracavity portion, make full use of the heat that first sintering chamber sintering produced, and can not cause the pollution to second sintering chamber, heat conduction efficiency is high, environmental protection and energy saving simultaneously has reduced manufacturing cost.

2. The utility model discloses a design of observation window, the staff of being convenient for observes the surplus of water tank internal water to be convenient for in time add water in to the water tank when the surplus is not enough.

3. The utility model discloses can increase the area of contact between the heat in the heating chamber and the water tank to make the rate of heating of water in the water tank faster, thereby accelerated the preheating rate of second sintering intracavity portion.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 isbase:Sub>A cross-sectional view taken along the linebase:Sub>A-base:Sub>A of fig. 2 in accordance with the present invention;

fig. 4 is a right side view of the present invention;

fig. 5 is a cross-sectional view taken along the line B-B of fig. 4 according to the present invention.

Reference numerals are as follows: 1. a first sintering chamber; 2. a second sintering chamber; 3. a heating chamber; 4. a water tank; 5. a water inlet pipe; 6. a water outlet pipe; 7. a return pipe; 8. a water pump; 9. preheating a tube; 10. a metal fin; 11. a support column; 12. an observation window; 13. a three-way exhaust pipe; 14. and a baffle plate.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to clearly and completely describe the technical solution in the embodiments of the present invention.

As shown in fig. 1-5, an auxiliary device for accelerating a shell mold sintering process according to an embodiment of the present invention includes a first sintering chamber 1 and a second sintering chamber 2, wherein the chamber doors of the first sintering chamber 1 and the second sintering chamber 2 are located on opposite sides of the first sintering chamber and the second sintering chamber, the top of the first sintering chamber 1 is communicated with a heating chamber 3, the top of the heating chamber 3 is provided with a water tank 4 fixedly connected to the first sintering chamber 1, the top of the water tank 4 is connected to a water inlet pipe 5, the water tank 4 is communicated with a water outlet pipe 6 and a return pipe 7, the water outlet pipe 6 is provided with a water pump 8, the second sintering chamber 2 is provided with a U-shaped preheating pipe 9, the preheating pipe 9 is provided with a plurality of metal fins 10 symmetrically arranged on the preheating pipe 9, in this embodiment, the metal fins 10 are made of copper material with good thermal conductivity, the water outlet pipe 6 and the return pipe 7 are respectively connected to two ends of the preheating pipe 9, before use, water is added into the water tank 4 through the water inlet pipe 5, when the water amount in the water tank 4 is more than about three-fourths of the volume of the water tank, water is stopped to be added into the water tank 4, then the shell mold can be burnt at high temperature through the first sintering cavity 1, the shell mold is sintered and solidified, after the sintering and solidification of the shell mold are completed, a large amount of heat can remain in the first sintering cavity 1, the heat can enter the heating cavity 3 along the first sintering cavity 1, the water in the water tank 4 on the heating cavity 3 is continuously heated, in practical use, a temperature sensor can be additionally arranged in the water tank 4, the temperature of the water in the water tank 4 is conveniently judged, when the water temperature in the water tank 4 reaches the boiling point, the water pump 8 is turned on, the water pump 8 works, the boiling water in the water tank 4 is pumped into the water outlet pipe 6 and enters the preheating pipe 9 through the water outlet pipe 6, the U-shaped design of the preheating pipe 9 can increase the retention time of the boiling water in the second sintering cavity 2, at this moment, a plurality of metal fins 10 can conduct the heat of boiling water in the middle of preheating pipe 9 to second sintering chamber 2, and preheat the inside of second sintering chamber 2, later the temperature-reduced water flows into back flow 7 along preheating pipe 9, and finally gets into in water tank 4 by back flow 7, because the water in water tank 4 is in the continuous heating state this moment, so can continuously preheat the inside of second sintering chamber 2, to sum up, this device adopts two sintering chamber designs, has abandoned current air exhaust formula heat recovery, after sintering is accomplished in first sintering chamber 1, can conduct the heat to second sintering chamber 2 in, in order to preheat the inside of second sintering chamber 2, make full use of the heat that first sintering chamber 1 sintering produced, and can not cause the pollution to second sintering chamber 2, heat conduction efficiency is high, simultaneously environmental protection and energy saving, production cost is reduced, it usually adopts the air exhaust formula to solve current heat recovery, draw the waste heat of sintering intracavity to another sintering intracavity through the pipeline promptly, so as to realize the preheating of another sintering chamber, but because the production gas and the harmful gas that bleeds in the sintering process produce, can increase the dust easily, therefore the problem of dust can be filtered easily.

As shown in fig. 1-2, in some embodiments, at least three support columns 11 are fixedly arranged on the top annular array of the first sintering chamber 1, the support columns 11 are fixedly connected with the water tank 4, and the support columns 11 are designed to support the water tank 4.

As shown in fig. 2, in some embodiments, a transparent viewing window 12 is disposed on the water tank 4, and the viewing window 12 is designed to facilitate a worker to observe the remaining amount of water in the water tank 4, so as to facilitate timely adding water into the water tank 4 when the remaining amount is insufficient.

As shown in fig. 3, in some embodiments, the connection between the heating chamber 3 and the water tank 4 is configured in a funnel shape, which can increase the contact area between the heat in the heating chamber 3 and the water tank 4, so as to heat the water in the water tank 4 faster, thereby increasing the preheating speed inside the second sintering chamber 2.

As shown in fig. 2 to 4, in some embodiments, a three-way exhaust pipe 13 is further included, two ends of the three-way exhaust pipe 13 are respectively communicated with the heating chamber 3 and the second sintering chamber 2, and in actual use, the other end of the three-way exhaust pipe 13 should be connected to an exhaust gas treatment device, so that the exhaust gas in the heating chamber 3 and the second sintering chamber 2 can be exhausted.

As shown in fig. 5, in some embodiments, the baffle plate 14 is movably disposed in the second sintering chamber 2, in practical use, the baffle plate 14 should be driven by a motor to move, when preheating in the second sintering chamber 2 is completed and sintering and curing of the shell mold through the second sintering chamber 2 are required, the baffle plate 14 is driven to move in the second sintering chamber 2 and block the preheating pipe 9, so that the preheating pipe 9 and the metal fins 10 are prevented from being burned out by high temperature in the second sintering chamber 2, and the service life of the preheating pipe 9 and the metal fins 10 is prolonged.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an accelerate auxiliary assembly of shell mould sintering process, includes first sintering chamber (1) and second sintering chamber (2), its characterized in that, the top intercommunication in first sintering chamber (1) has heating chamber (3), the top of heating chamber (3) be provided with first sintering chamber (1) fixed connection's water tank (4), the top of water tank (4) is connected with inlet tube (5), the intercommunication has outlet pipe (6) and back flow (7) on water tank (4), be provided with water pump (8) on outlet pipe (6), be provided with in second sintering chamber (2) preheating pipe (9) that the structure is the U-shaped, the array symmetry has set firmly a plurality of metal fin (10) on preheating pipe (9), outlet pipe (6) with back flow (7) respectively with the both ends of preheating pipe (9) are connected.

2. The auxiliary equipment for accelerating the shell mold sintering process is characterized in that not less than three support columns (11) are fixedly arranged on the top annular array of the first sintering cavity (1), and the support columns (11) are fixedly connected with the water tank (4).

3. Auxiliary equipment for accelerating the sintering process of shell molds according to claim 1, characterized in that the water tank (4) is provided with a transparent observation window (12).

4. An aid to accelerate the shell mould sintering process according to claim 1, characterised in that the junction of the heating chamber (3) and the water tank (4) is funnel shaped.

5. The auxiliary device for accelerating the shell mold sintering process as claimed in claim 1, further comprising a three-way exhaust pipe (13), wherein two ends of the three-way exhaust pipe (13) are respectively communicated with the heating cavity (3) and the second sintering cavity (2).

6. An auxiliary device for accelerating a shell mould sintering process according to claim 1, wherein a baffle (14) is movably arranged in the second sintering chamber (2).