Furnace entering and exiting tool for shaping heat treatment

Abstract

The utility model relates to a shaping heat treatment in-out furnace tool which comprises a salt bath furnace and a cooling water tank, a guide rail is arranged above the salt bath furnace and the cooling water tank, an electric pulley is arranged in the guide rail and can slide along the guide rail, the bottom of the electric pulley is connected with a hook through an electric hoist and a chain, and the hook is connected with the salt bath furnace and the cooling water tank. An opening is formed in the top of the container containing the nickel-titanium alloy support workpiece, and a limiting cover is fixed to the position, above the hook, of the chain. According to the furnace entering and exiting tool for shaping heat treatment, one conveying mechanism is used for conveying, operation is convenient and fast, occupied space is small, operators do not need to move excessively, high-temperature liquid splashing can be effectively avoided, the activity range of a dangerous source is controlled, and therefore potential safety hazards are reduced, and operation is simplified.

Description

Technical Field

[0001] The utility model relates to a furnace entry and exit tool for shaping heat treatment. Background Art

[0002] Nickel-titanium alloy is considered one of the best biofunctional materials due to its shape memory properties, excellent mechanical properties, corrosion resistance and biocompatibility. With the development of interventional medical technology, the advantages of nickel-titanium alloy in interventional medical devices are becoming increasingly obvious.

[0003] The nickel-titanium alloy stent is mainly made by winding, shaping and welding nickel-titanium alloy wire. When the nickel-titanium alloy workpiece is heat-treated and shaped, it is necessary to lift the container containing the workpiece, open the furnace cover of the salt bath furnace, slowly put the container into the furnace and close the furnace cover. After the heat treatment is completed, open the furnace cover and lift the container, and put it into the cooling water tank for cooling.

[0004] However, the workpiece needs to be transported by multiple transport mechanisms, which is cumbersome and takes up a lot of space. In addition, the salt bath furnace cover is prone to high-temperature liquid splashing during opening and closing, causing burns, and improper operation may cause the workpiece to fall into the furnace. Utility Model Content

[0005] The utility model aims at solving the above technical problems and provides a shaping heat treatment furnace entry and exit tooling.

[0006] The purpose of the utility model is achieved in this way:

[0007] A shaping heat treatment in-and-out furnace tooling comprises a salt bath furnace and a cooling water tank, wherein a guide rail is arranged above the salt bath furnace and the cooling water tank, wherein an electric pulley is arranged in the guide rail, wherein the electric pulley can slide along the guide rail, wherein the bottom of the electric pulley is connected to a hook through an electric hoist and a chain, wherein the top of a container in which a nickel-titanium alloy support workpiece is mounted is open, wherein the bottom of the hook can extend into the top opening of the container and suspend the container, wherein a limit cover is fixed above the hook on the chain, wherein the diameter of the limit cover is greater than the diameter of the top opening of the container.

[0008] The guide rails are arranged on the ceiling of the workshop.

[0009] The electric pulley is controlled by a motor.

[0010] A limiting block is arranged inside the guide rail at a position just above the salt bath furnace and the cooling water tank.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] The utility model discloses a shaping heat treatment furnace entry and exit tooling that uses a transport mechanism for transportation, is easy to operate, occupies less space, and operators do not need to move extra, can effectively avoid high-temperature liquid splashing, and control the activity range of dangerous sources, thereby reducing safety hazards and simplifying operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of a shaping heat treatment furnace inlet and outlet tooling.

[0014] Among them: salt bath furnace 1, cooling water tank 2, guide rail 3, electric pulley 4, chain 5, hook 6, container 7, limit cover 8. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, the utility model relates to a shaping heat treatment in-and-out furnace tooling, comprising a salt bath furnace 1 and a cooling water tank 2, wherein a guide rail 3 is arranged above the salt bath furnace 1 and the cooling water tank 2, the guide rail 3 is arranged on the workshop ceiling, an electric pulley 4 is arranged in the guide rail 3, the electric pulley 4 can slide along the guide rail 3, and a limit block is arranged inside the guide rail 3 at a position directly above the salt bath furnace 1 and the cooling water tank 2, the electric pulley 4 is controlled by a motor, and can only move between two limit blocks.

[0016] The bottom of the electric pulley 4 is connected to the hook 6 through an electric hoist and a chain 5. The top of the container 7 containing the nickel-titanium alloy support workpiece is open, and the bottom of the hook 6 can extend into the top opening of the container 7 and hang the container 7. The chain 5 is fixed with a limit cover 8 above the hook 6. The diameter of the limit cover 8 is slightly larger than the diameter of the top opening of the container 7, so that the container 7 can be covered.

[0017] The movements of the motor and electric hoist are controlled by programs.

[0018] When this type of shaping heat treatment in and out of the furnace tooling is used, first use a hook to hang the container containing the nickel-titanium alloy support workpiece, the electric hoist controls the chain to lift the hook, the motor controls the electric pulley to move to the top of the salt bath furnace, and then the hook puts the container into the salt bath furnace, the chain continues to descend, so that the limit cover covers the top opening of the container, and then the nickel-titanium alloy is shaped. After shaping is completed, the hook lifts the container, and then the motor controls the electric pulley to move to the top of the cooling water tank, and then the hook puts the container into the cooling water tank, the chain continues to descend, so that the limit cover covers the top opening of the container, and then the nickel-titanium alloy is cooled.

Claims

1. A heat treatment furnace loading and unloading tool, characterized by: It comprises a salt bath furnace (1) and a cooling water tank (2). A guide rail (3) is arranged above the salt bath furnace (1) and the cooling water tank (2). An electric pulley (4) is arranged in the guide rail (3). The electric pulley (4) can slide along the guide rail (3). The bottom of the electric pulley (4) is connected to a hook (6) through an electric hoist and a chain (5). The top of a container (7) containing a nickel-titanium alloy support workpiece is open. The bottom of the hook (6) can extend into the top opening of the container (7) and suspend the container (7). A limit cover (8) is fixed to the chain (5) above the hook (6). The diameter of the limit cover (8) is larger than the diameter of the top opening of the container (7).

2. The heat treatment in-and-out furnace tooling according to claim 1 is characterized by: The guide rail (3) is arranged on the ceiling of the workshop.

3. The heat treatment in-and-out furnace tooling according to claim 1 is characterized by: The electric pulley (4) is controlled by a motor.

4. The heat treatment in-and-out furnace tooling according to claim 1 is characterized by: A limit block is arranged inside the guide rail (3) at a position directly above the salt bath furnace (1) and the cooling water tank (2).

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