Precise mold vacuum heat treatment device with precise atmosphere control function

Abstract

The utility model provides a precise mold vacuum heat treatment device with precise atmosphere control, which belongs to the technical field of heat treatment and comprises a supporting seat, a furnace body fixedly mounted at the top of the supporting seat, a hearth fixedly mounted in an inner cavity of the furnace body, a heat treatment chamber arranged in an inner cavity of the hearth, and a sealing door fixedly mounted on the front side of the heat treatment chamber. A furnace door is fixedly installed on the front face of the furnace body, and the right side of the furnace body is fixedly connected with an atmosphere control mechanism. According to the utility model, the three-stage pneumatic high-vacuum baffle valve is arranged in the atmosphere control mechanism, so that the flow of gas can be accurately controlled, the on-off of the gas flow can be quickly and accurately switched in different gas extraction stages, the gas extraction efficiency is optimized, and the mechanism can quickly respond when the required vacuum degree is reached; the purpose of achieving more complex gas path paths and control strategies is achieved, different heat treatment process requirements are met, and the flexibility of controlling the vacuum degree and the atmosphere components in the heat treatment chamber is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to heat treatment technical field, concretely relates to a precise mould vacuum heat treatment device with accurate atmosphere control. BACKGROUND

[0002] Mould heat treatment is the important technological process of guaranteeing mould performance, directly influences the manufacturing precision, strength and working life of mould and so on, and the vacuum heat treatment furnace is the key device for carrying out this process, and the workpiece needs to be cooled after being treated in vacuum.

[0003] The valve setting of the existing vacuum heat treatment device is limited, cannot satisfy the complicated atmosphere control, the system cannot quickly respond to the demand of atmosphere change under the complicated atmosphere demand, and the flexibility of the process is limited. UTILITY MODEL CONTENT

[0004] The utility model discloses a precise mould vacuum heat treatment device with accurate atmosphere control, which aims to solve the problems in the background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme.

[0006] A precise mould vacuum heat treatment device with accurate atmosphere control, including support seat, the top of support seat is fixedly installed with furnace body, the inner chamber of furnace body is fixedly installed with hearth, the inner chamber of hearth is provided with heat treatment room, the front of heat treatment room is fixedly installed with sealed door, the front of furnace body is fixedly installed with furnace door, the right side of furnace body is fixedly connected with atmosphere control mechanism.

[0007] As a preferred scheme of the utility model, the atmosphere control mechanism includes first connecting air pipe, diffusion pump, second connecting air pipe, mechanical pump and electromagnetic vacuum air valve, the first connecting air pipe is fixedly connected on the right side of furnace body, the diffusion pump is fixedly installed at the bottom of first connecting air pipe, the second connecting air pipe is fixedly connected on the right side of first connecting air pipe, the mechanical pump is fixedly installed on the right side of second connecting air pipe, and the electromagnetic vacuum air valve is fixedly installed between second connecting air pipe and mechanical pump.

[0008] As a preferred scheme of the utility model, the atmosphere control mechanism further includes third connecting air pipe and roots pump, the third connecting air pipe is fixedly connected between second connecting air pipe and diffusion pump, and the roots pump is fixedly installed above mechanical pump.

[0009] As a preferred solution of the present invention, a first pneumatic high vacuum baffle valve is fixedly installed between the first connecting air pipe and the diffusion pump, a second pneumatic high vacuum baffle valve is fixedly installed between the diffusion pump and the mechanical pump, and a third pneumatic high vacuum baffle valve is fixedly installed between the mechanical pump and the Roots pump.

[0010] As a preferred solution of the present invention, a heater is fixedly installed on the bottom of the diffusion pump, a first flow meter is fixedly installed on the first connecting air pipe, a second flow meter is fixedly installed on the second connecting air pipe, and a third flow meter is fixedly installed on the third connecting air pipe.

[0011] As a preferred solution of the present invention, a controller is fixedly installed on the front of the support seat, and the controller is electrically connected to the first pneumatic high vacuum baffle valve, the second pneumatic high vacuum baffle valve and the third pneumatic high vacuum baffle valve.

[0012] As a preferred solution of the present invention, a vacuum gauge is fixedly installed on the right side of the controller, and a temperature controller is fixedly installed below the vacuum gauge.

[0013] As a preferred solution of the present invention, a plurality of flange handles are fixedly installed around the furnace door.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] By setting a three-stage pneumatic high vacuum baffle valve in the atmosphere control mechanism, the flow of gas can be precisely controlled to ensure that the airflow can be switched on and off quickly and accurately in different pumping stages, optimize the pumping efficiency, and ensure that the mechanism can respond quickly when the required vacuum degree is reached, so as to achieve the purpose of realizing more complex gas paths and control strategies, adapt to different heat treatment process requirements, and improve the flexibility of controlling the vacuum degree and atmosphere composition in the heat treatment chamber. Through the segmented setting of multiple pneumatic high vacuum baffle valves, it can also effectively prevent external gas from entering the vacuum system, effectively reduce the risk of leakage in the system, thereby protecting the integrity and safety of the vacuum system and improving the sealing and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the furnace structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the atmosphere control mechanism structure of the present utility model;

[0020] Figure 4 This is a front view of the overall structure of the utility model;

[0021] Figure 5 It is a top view of the overall structure of the utility model.

[0022] In the figure: 1. Support base; 2. Furnace body; 3. Furnace chamber; 4. Heat treatment chamber; 5. Sealing door; 6. Furnace door; 7. Atmosphere control mechanism; 701. First connecting air pipe; 702. Diffusion pump; 703. Second connecting air pipe; 704. Mechanical pump; 705. Electromagnetic vacuum charging valve; 706. Third connecting air pipe; 707. Roots pump; 708. First pneumatic high vacuum baffle valve; 709. Second pneumatic high vacuum baffle valve; 7010. Third pneumatic high vacuum baffle valve; 7011. Heater; 7012. First flow meter; 7013. Second flow meter; 7014. Third flow meter; 8. Controller; 9. Vacuum gauge; 10. Temperature controller; 11. Flange handle. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it designate a separate or selective embodiment that is mutually exclusive with other embodiments.

[0026] Example 1

[0027] like Figure 1 - Figure 5As shown, it is the first embodiment of the utility model, which provides a precision mold vacuum heat treatment device with precise atmosphere control, including a support base 1, a furnace body 2 is fixedly installed on the top of the support base 1, a furnace hearth 3 is fixedly installed in the inner cavity of the furnace body 2, a heat treatment chamber 4 is provided in the inner cavity of the furnace hearth 3, a sealing door 5 is fixedly installed on the front of the heat treatment chamber 4, a furnace door 6 is fixedly installed on the front of the furnace body 2, and an atmosphere control mechanism 7 is fixedly connected to the right side of the furnace body 2.

[0028] like Figure 1 、 Figure 2 and Figure 3 As shown, the furnace door 6 and the sealed door 5 of the heat treatment chamber 4 are opened, and the precision mold to be processed is sent into the heat treatment chamber 4. The heat treatment chamber 4 performs heat treatment on the fine model, and the atmosphere control mechanism 7 can adjust and control the gas composition and pressure in the furnace to achieve a specific heat treatment atmosphere.

[0029] Example 2

[0030] Reference Figure 3 、 Figure 4 and Figure 5 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0031] In this embodiment, the atmosphere control mechanism 7 includes a first connecting air pipe 701, a diffusion pump 702, a second connecting air pipe 703, a mechanical pump 704 and an electromagnetic vacuum inflation valve 705. The first connecting air pipe 701 is fixedly connected to the right side of the furnace body 2, the diffusion pump 702 is fixedly installed at the bottom of the first connecting air pipe 701, the second connecting air pipe 703 is fixedly connected to the right side of the first connecting air pipe 701, the mechanical pump 704 is fixedly installed on the right side of the second connecting air pipe 703, and the electromagnetic vacuum inflation valve 705 is fixedly installed between the second connecting air pipe 703 and the mechanical pump 704. The atmosphere control mechanism 7 also includes a third connecting air pipe 706 and a Roots pump 707. The third connecting air pipe 706 is fixedly connected between the second connecting air pipe 703 and the diffusion pump 702. The Roots pump 707 is fixedly installed above the mechanical pump 704. A first pneumatic high vacuum baffle valve 708 is fixedly installed between the first connecting air pipe 701 and the diffusion pump 702. A second pneumatic high vacuum baffle valve 709 is fixedly installed between the diffusion pump 702 and the mechanical pump 704. A third pneumatic high vacuum baffle valve 7010 is fixedly installed between the mechanical pump 704 and the Roots pump 707.

[0032] like Figure 3 、 Figure 4 and Figure 5As shown, the atmosphere control mechanism 7 is started, and the diffusion pump 702 is used in conjunction with the mechanical pump 704 to pump air from atmospheric pressure to achieve the required vacuum level in the furnace. The mechanical pump 704 serves as a front pump for the diffusion pump 702 to remove most of the gas so that the diffusion pump 702 can reach a high vacuum state. The Roots pump 707 is used in series with the diffusion pump 702 to improve the pumping efficiency of the pump. The electromagnetic vacuum charging valve 705 controls the opening and closing of the valve through the electromagnetic coil to accurately control the gas entering the furnace. The three high vacuum baffle valves are opened and closed by controlling the valve plate through the pneumatic actuator to achieve rapid cutting off and connecting of the gas flow at each stage, thereby ensuring the control of the vacuum level in the furnace and safe operation.

[0033] Example 3

[0034] Reference Figure 1 、 Figure 4 and Figure 5 , which is the third embodiment of the present utility model, is based on the first two embodiments.

[0035] In this embodiment, a heater 7011 is fixedly installed at the bottom of the diffusion pump 702, a first flow meter 7012 is fixedly installed on the first connecting air pipe 701, a second flow meter 7013 is fixedly installed on the second connecting air pipe 703, and a third flow meter 7014 is fixedly installed on the third connecting air pipe 706. A controller 8 is fixedly installed on the front of the support seat 1. The controller 8 is electrically connected to the first pneumatic high vacuum baffle valve 708, the second pneumatic high vacuum baffle valve 709 and the third pneumatic high vacuum baffle valve 7010. A vacuum gauge 9 is fixedly installed on the right side of the controller 8, and a temperature controller 10 is fixedly installed below the vacuum gauge 9. Several flange handles 11 are fixedly installed around the furnace door 6.

[0036] like Figure 1 、 Figure 4 and Figure 5 As shown, the controller 8 is used to set and adjust various parameters in the heat treatment process, such as stability, time, vacuum degree, etc. The vacuum degree and temperature changes in the furnace can be monitored in real time through the vacuum gauge 9 and the temperature controller 10. The opening and closing of the furnace door 6 can be controlled by rotating the flange handles 11 around the furnace door 6.

[0037] In use, before starting the heat treatment, according to the characteristics of the mold to be treated and the required heat treatment process, the parameters such as the temperature in the furnace body 2, the holding time, the vacuum degree and the type of atmosphere are set by the controller 8, the atmosphere control mechanism 7 is started, the pneumatic high-vacuum damper valve is opened, the air in the furnace is pumped out, when the vacuum gauge 9 detects that the vacuum degree in the furnace reaches the required value, the controller 8 controls the three pneumatic high-vacuum damper valves to automatically close in turn, cutting off the gas flow, maintaining a certain precise atmospheric condition in the furnace, and then the mold is heated for treatment. During the heating process, the controller 8 can also start the atmosphere control mechanism 7 to introduce the required gas into the furnace.

[0038] In summary: by setting three-stage pneumatic high-vacuum damper valves in the atmosphere control mechanism 7, the flow of gas can be accurately controlled, ensuring that the on-off of gas flow can be quickly and accurately switched at different stages of pumping, optimizing the pumping efficiency, and ensuring that when the required vacuum degree is reached, the mechanism can respond quickly to achieve more complex gas path and control strategies, adapt to different heat treatment process requirements, improve the flexibility of the control of the vacuum degree and the atmospheric composition in the heat treatment chamber 4, and through the segmented setting of multiple pneumatic high-vacuum damper valves, it can also effectively prevent external gas from entering the vacuum system, effectively reduce the risk of system leakage, thereby protecting the integrity and safety of the vacuum system, and improving the sealing and stability of the device.

[0039] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of discrete elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be changed or re-sequenced without departing from the scope of the application. In the claims, any "means plus function" clause is intended to cover the structures described herein as performing the recited functionality, and not just structural equivalents, but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0041] It will be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A precision mold vacuum heat treatment device with precise atmosphere control, characterized by: The invention comprises a support base (1), a furnace body (2) is fixedly mounted on the top of the support base (1), a furnace chamber (3) is fixedly mounted in the inner cavity of the furnace body (2), a heat treatment chamber (4) is provided in the inner cavity of the furnace chamber (3), a sealing door (5) is fixedly mounted on the front of the heat treatment chamber (4), a furnace door (6) is fixedly mounted on the front of the furnace body (2), and an atmosphere control mechanism (7) is fixedly connected to the right side of the furnace body (2).

2. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 1, characterized in that: The atmosphere control mechanism (7) comprises a first connecting air pipe (701), a diffusion pump (702), a second connecting air pipe (703), a mechanical pump (704) and an electromagnetic vacuum inflation valve (705), wherein the first connecting air pipe (701) is fixedly connected to the right side of the furnace body (2), the diffusion pump (702) is fixedly installed at the bottom of the first connecting air pipe (701), the second connecting air pipe (703) is fixedly connected to the right side of the first connecting air pipe (701), the mechanical pump (704) is fixedly installed on the right side of the second connecting air pipe (703), and the electromagnetic vacuum inflation valve (705) is fixedly installed between the second connecting air pipe (703) and the mechanical pump (704).

3. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 1, characterized in that: The atmosphere control mechanism (7) further comprises a third connecting air pipe (706) and a Roots pump (707), wherein the third connecting air pipe (706) is fixedly connected between the second connecting air pipe (703) and the diffusion pump (702), and the Roots pump (707) is fixedly installed above the mechanical pump (704).

4. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 2, characterized in that: A first pneumatic high vacuum baffle valve (708) is fixedly installed between the first connecting air pipe (701) and the diffusion pump (702), a second pneumatic high vacuum baffle valve (709) is fixedly installed between the diffusion pump (702) and the mechanical pump (704), and a third pneumatic high vacuum baffle valve (7010) is fixedly installed between the mechanical pump (704) and the Roots pump (707).

5. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 3, characterized in that: A heater (7011) is fixedly installed at the bottom of the diffusion pump (702), a first flow meter (7012) is fixedly installed on the first connecting air pipe (701), a second flow meter (7013) is fixedly installed on the second connecting air pipe (703), and a third flow meter (7014) is fixedly installed on the third connecting air pipe (706).

6. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 1, characterized in that: A controller (8) is fixedly mounted on the front of the support seat (1), and the controller (8) is electrically connected to the first pneumatic high vacuum baffle valve (708), the second pneumatic high vacuum baffle valve (709), and the third pneumatic high vacuum baffle valve (7010).

7. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 6, characterized in that: A vacuum gauge (9) is fixedly mounted on the right side of the controller (8), and a temperature controller (10) is fixedly mounted below the vacuum gauge (9).

8. The precision mold vacuum heat treatment device with precise atmosphere control according to claim 1, characterized in that: Several flange handles (11) are fixedly mounted around the furnace door (6).

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