A surface rotating heat treatment device for a die steel

Abstract

This application relates to the field of mold steel processing technology and discloses a rotary heat treatment device for mold steel surface, including a cooling pool, a mounting frame fixedly connected to one side of the upper end of the cooling pool, a hydraulic cylinder fixedly connected to the upper end of the mounting frame, a first gear rotatably mounted on the lower output end of the hydraulic cylinder, a clamping component for clamping the mold steel mounted on the middle of the lower end of the first gear, a second rack driving the first gear to rotate through a reciprocating screw set at the upper and lower parts of the cooling pool, thereby causing the mold steel clamped by the fixed frame to rotate in the cooling pool and causing the coolant to move, ensuring uniform cooling of the mold steel during the cooling treatment, and also driving the stirring rod to move through the lower reciprocating screw, continuously stirring the coolant at the bottom, further stirring the coolant in the cooling pool, thereby ensuring that the temperature difference of the coolant is reduced and preventing the mold steel from cracking due to uneven cooling.

Description

Technical Field

[0001] This application relates to the field of mold steel processing technology, and in particular to a rotary heat treatment apparatus for mold steel surface. Background Technology

[0002] Mold steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die casting molds. The quality of the mold directly affects the quality of the pressure processing technology, the precision and output of the products, and the production cost. In addition to reasonable structural design and processing precision, the quality and service life of the mold are mainly affected by the mold material and heat treatment. Heat treatment refers to a metal heat working process in which materials are heated, held at a certain temperature and cooled in a solid state to obtain the desired structure and properties.

[0003] Existing technologies typically employ cooling and quenching methods for heat treatment of mold steel, specifically involving immersion in a coolant for quenching. However, uneven cooling is a problem during cooling and quenching. Therefore, the mold steel is continuously rotated to drive the flow of coolant, ensuring continuous contact between the mold steel and the coolant for cooling. However, relying solely on the rotation of the mold steel to drive the water flow is not very effective, as the coolant in other parts of the cooling tank remains unaffected, resulting in a temperature difference between the coolant components and thus affecting the cooling of the mold steel. Therefore, a rotating heat treatment device for the surface of mold steel was designed to solve the aforementioned problems. Utility Model Content

[0004] To address this problem, this application provides a rotary heat treatment apparatus for mold steel surfaces.

[0005] The rotary heat treatment apparatus for mold steel surface provided in this application adopts the following technical solution:

[0006] A rotary heat treatment device for mold steel surface includes a cooling tank, a mounting frame fixedly connected to one side of the upper end of the cooling tank, a hydraulic cylinder fixedly connected to the upper end of the mounting frame, a first gear rotatably mounted on the lower output end of the hydraulic cylinder, and a clamping component for clamping the mold steel mounted in the middle of the lower end of the first gear.

[0007] Two reciprocating lead screws are provided, which are rotatably installed at the upper and lower ends of the cooling pool, respectively. A drive assembly is installed on one side of the reciprocating lead screw that passes through the cooling pool.

[0008] The agitator assembly, mounted on the lower reciprocating screw, is used to agitate the coolant;

[0009] The first rack is installed in the cooling pool to assist in the use of the agitation component.

[0010] Preferably, the agitation assembly includes a moving block, which is threadedly connected to a reciprocating lead screw. A second gear is rotatably connected to the upper end of the moving block, which meshes with a first rack. An agitation rod is fixedly connected to the upper end of the second gear.

[0011] Preferably, a movable plate is threaded onto the upper reciprocating screw, and a second rack is fixedly connected to the front of the movable plate, the second rack being able to mesh with a first gear.

[0012] Preferably, the drive assembly includes a sprocket fixedly mounted on one side of the reciprocating lead screw, a chain mounted on the sprocket, a servo motor fixedly connected to the middle of one side of the sprocket, and the servo motor fixedly mounted on one side of the cooling pool.

[0013] Preferably, the clamping assembly includes a fixing frame, which is fixedly installed on the lower end of the first gear. A mounting groove is provided on one side of the lower end of the fixing frame, and a limiting block is slidably connected in the mounting groove. An elastic sheet is fixedly connected to one side of the limiting block, and the elastic sheet is fixedly connected to the inner wall of the mounting groove on one side.

[0014] Preferably, a pull rod is also fixedly connected to one side of the limiting block, and a handle is fixedly connected to one side of the pull rod through the mounting groove.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] In this invention, a reciprocating screw is installed at the top and bottom of the cooling system. The upper reciprocating screw drives the second rack to move, which in turn drives the first gear to rotate. This causes the model steel held by the fixing frame to rotate within the cooling pool and moves the coolant, ensuring uniform cooling of the model steel. The lower reciprocating screw also drives the stirring rod to move and rotate, continuously agitating the coolant at the bottom of the cooling pool. This further agitates the coolant, reducing the temperature difference and preventing cracking of the model steel due to uneven cooling. Attached Figure Description

[0017] Figure 1 This is a schematic cross-sectional view of the main body of the embodiment of the application;

[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of the main body of the embodiment of the application;

[0019] Figure 3 This is a schematic diagram of the structure of the driving component and the agitation component in the embodiment of the application;

[0020] Figure 4 This is an example of the application. Figure 1 Enlarged view of structure A.

[0021] Explanation of reference numerals in the attached drawings: 1. Cooling pool; 2. Mounting bracket; 3. Hydraulic cylinder; 4. Gear No. 1; 5. Clamping assembly; 51. Limit block; 52. Pull rod; 53. Elastic sheet; 6. Reciprocating screw; 7. Sprocket; 8. Chain; 9. Servo motor; 10. Rack No. 2; 11. Moving block; 12. Gear No. 2; 13. Rack No. 1; 14. Stirring rod. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a rotary heat treatment apparatus for mold steel surface. (Refer to...) Figure 1-4 A rotating heat treatment device for mold steel surface includes a cooling pool 1, a mounting frame 2 fixedly connected to one side of the upper end of the cooling pool 1, a hydraulic cylinder 3 fixedly connected to the upper end of the mounting frame 2, a first gear 4 rotatably mounted at the lower output end of the hydraulic cylinder 3, and a clamping component 5 for clamping the mold steel mounted at the middle of the lower end of the first gear 4.

[0024] Specifically, the clamping assembly 5 includes a fixing frame, which is fixedly installed on the lower end of the first gear 4. A mounting groove is provided on one side of the lower end of the fixing frame, and a limiting block 51 is slidably connected in the mounting groove. An elastic sheet 53 is fixedly connected to one side of the limiting block 51, and an elastic sheet 53 is fixedly connected to the inner wall of the mounting groove on one side.

[0025] Place the model steel that needs to be quenched at the lower end of the fixed frame and position it between the two limiting blocks 51. Then push the model steel upward so that it pushes the limiting blocks 51 on both sides to move into the mounting groove and squeezes the elastic sheet 53 to contract. After the model steel passes through, the elastic sheet 53 drives the limiting block 51 to move, so that the limiting block 51 hinders the model steel from falling and supports the model steel.

[0026] To facilitate unloading, a pull rod 52 is also fixedly connected to one side of the limiting block 51. The pull rod 52 passes through the mounting groove and is fixedly connected to a handle. When unloading, the pull rod 52 can be pulled to drive the limiting block 51 into the mounting groove, so as not to block the mold steel.

[0027] A reciprocating lead screw 6 is rotatably installed in the upper and lower parts of the cooling pool 1. A drive assembly is installed on one side of the reciprocating lead screw 6, which passes through the cooling pool 1. The drive assembly includes a sprocket 7 fixedly installed on one side of the reciprocating lead screw 6. A chain 8 is installed on the sprocket 7. A servo motor 9 is fixedly connected to the middle of one side of the sprocket 7. The servo motor 9 is fixedly installed on one side of the cooling pool 1.

[0028] By adopting the above technical solution, the agitation component is installed on the lower reciprocating screw 6 for agitating the coolant. The agitation component includes a moving block 11, which is threadedly connected to the reciprocating screw 6. The upper end of the moving block 11 is rotatably connected to a second gear 12, which meshes with a first rack 13. The upper end of the second gear 12 is fixedly connected to an agitation rod 14, and a first rack 13 is installed in the cooling pool 1 to assist in the use of the agitation component.

[0029] The lower sprocket 7 drives the reciprocating screw 6 on it to rotate. The reciprocating screw 6 drives the moving block 11 to move. The moving block 11 drives the second gear 12 and the stirring rod 14 to move. At the same time, the second gear 12 meshes with the first rack 13, so that the second gear 12 drives the stirring rod 14 to rotate. The stirring rod 14 moves and rotates at the same time, continuously stirring the coolant at the bottom, so that the coolant in the cooling pool 1 is further stirred, ensuring that the temperature difference of the coolant is reduced, and preventing the steel from cracking due to uneven cooling during the cooling of the mold steel.

[0030] By adopting the above technical solution, a moving plate is threadedly connected to the upper reciprocating screw 6, and a second rack 10 is fixedly connected to the front of the moving plate. The second rack 10 can mesh with the first gear 4.

[0031] The implementation principle of the rotary heat treatment device for mold steel surface in this application embodiment is as follows: The mold steel to be quenched is placed at the lower end of the fixed frame and positioned between two limiting blocks 51. Then, the mold steel is pushed upward, causing the limiting blocks 51 on both sides to move into the mounting groove and compress the elastic sheet 53 to contract. After the mold steel passes through, the elastic sheet 53 drives the limiting blocks 51 to move, thus preventing the mold steel from descending and supporting it. Then, the servo motor 9 is started, causing the servo motor 9 to drive the lower sprocket 7 to rotate. The sprocket 7 is driven by the chain 8, which also drives the upper sprocket 7 to rotate. The upper sprocket 7 drives the reciprocating screw 6 on it to rotate. The reciprocating screw 6 drives the moving plate to move, causing the moving plate to drive the second rack 10 to move. During the movement of rack 10, it drives gear 4 to rotate, causing the model steel held by the fixed frame to rotate within the cooling pool 1 and move the coolant, ensuring uniform cooling of the model steel. Simultaneously, the lower sprocket 7 drives the reciprocating screw 6 to rotate, which in turn drives the moving block 11 to move. The moving block 11 then drives gear 12 and agitator 14 to move. During this movement, gear 12 meshes with rack 13, causing gear 12 to drive agitator 14 to rotate. As gear 14 moves and rotates, it continuously agitates the coolant at the bottom, further agitating the coolant within the cooling pool 1. This reduces the temperature difference of the coolant and prevents cracking of the model steel due to uneven cooling.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A rotary heat treatment apparatus for mold steel surface, comprising a cooling tank (1), characterized in that: The upper side of the cooling pool (1) is fixedly connected to the mounting bracket (2), the upper end of the mounting bracket (2) is fixedly connected to the hydraulic cylinder (3), the lower output end of the hydraulic cylinder (3) is rotatably mounted with a first gear (4), and the lower middle part of the first gear (4) is equipped with a clamping component (5) for clamping the model steel. Two reciprocating lead screws (6) are provided, which are rotatably installed at the upper and lower ends of the cooling pool (1) respectively. A drive assembly is installed on one side of the reciprocating lead screw (6) that passes through the cooling pool (1). The agitation assembly is mounted on the lower reciprocating screw (6) and is used to agitate the coolant; The first rack (13) is installed in the cooling pool (1) to assist in the use of the stirring assembly.

2. The rotary heat treatment apparatus for mold steel surface according to claim 1, characterized in that: The stirring assembly includes a moving block (11), which is threadedly connected to a reciprocating screw (6). The upper end of the moving block (11) is rotatably connected to a second gear (12), which meshes with a first rack (13). The upper end of the second gear (12) is fixedly connected to a stirring rod (14).

3. The rotary heat treatment apparatus for mold steel surface according to claim 1, characterized in that: The upper reciprocating screw (6) is threadedly connected to a moving plate, and the front of the moving plate is fixedly connected to a second rack (10), which can mesh with a first gear (4).

4. The rotary heat treatment apparatus for mold steel surface according to claim 1, characterized in that: The drive assembly includes a sprocket (7) fixedly mounted on one side of the reciprocating screw (6), a chain (8) mounted on the sprocket (7), and a servo motor (9) fixedly connected to the middle of one side of the sprocket (7). The servo motor (9) is fixedly mounted on one side of the cooling pool (1).

5. The rotary heat treatment apparatus for mold steel surface according to claim 1, characterized in that: The clamping assembly (5) includes a fixing frame, which is fixedly installed on the lower end of the first gear (4). A mounting groove is provided on one side of the lower end of the fixing frame, and a limiting block (51) is slidably connected in the mounting groove. An elastic sheet (53) is fixedly connected to one side of the limiting block (51), and the inner wall of the mounting groove is fixedly connected to one side of the elastic sheet (53).

6. The rotary heat treatment apparatus for mold steel surface according to claim 5, characterized in that: The limiting block (51) is also fixedly connected to a pull rod (52) on one side, and the pull rod (52) passes through the mounting groove to fixally connect to a handle on one side.

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