A well-type tempering furnace for die steel

Abstract

The utility model discloses a well type tempering furnace for die steel relates to die steel technical field, including the top of the tempering furnace body that is equipped with the opening, the top of the tempering furnace body is equipped with the cover and sets up the furnace cover of tempering furnace in the top of the tempering furnace body, is equipped with the rotary drive mechanism for fixing die steel and driving die steel rotation on the furnace cover of tempering furnace, the utility model discloses being equipped with the fixed jaw, can fix the die steel and hold, is convenient for the fixed die steel, the output shaft of first speed reducer drives one gear rotation, and a plurality of gears are connected through chain drive, make all the gear that sets up rotate synchronously, and the gear drives the rotation of the rotating rod, and the rotating rod drives die steel rotation through fixed plus jaw, can make all the die steel that fixedly holds rotate, can rotate the die steel of inner ring, avoid the uneven heating of inner and outer rings to occur, make all the die steel even heating, improve the heat treatment quality.

Description

Technical Field

[0001] This utility model relates to the field of mold steel technology, specifically a pit-type tempering furnace for mold steel. Background Technology

[0002] Die steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die casting molds. Molds are the primary processing tools in industries such as machinery manufacturing, radio instruments, motors, and electrical appliances, used for manufacturing parts. The quality of the mold directly affects the quality of the pressure processing, the precision and output of the product, and production costs. Besides reasonable structural design and machining accuracy, the quality and service life of the mold are mainly influenced by the mold material and heat treatment. During heat treatment, a pit-type tempering furnace is required to temper the die steel.

[0003] Traditional pit-type tempering furnaces use hangers to fix the mold steel, and then put the mold steel into the tempering furnace for heat treatment. Existing tempering furnaces do not have a rotation function, which leads to uneven heat treatment of the mold steel and affects its performance. Even if some have a rotation function, it rotates as a whole and cannot rotate out the inner ring of mold steel, which still affects the uniformity of heat treatment of the mold steel. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pit-type tempering furnace for mold steel.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a well-type tempering furnace for mold steel, comprising a furnace body with an opening at the top, a furnace cover at the top of the furnace body, and a rotary drive mechanism for fixing and rotating the mold steel on the furnace cover. The rotary drive mechanism includes multiple annular and equidistantly distributed rotating rods connected to the inner wall of the furnace cover via rotating shafts. The bottom end of each rotating rod is provided with a fixed gripper, and the upper end of each rotating rod is provided with a gear. The multiple gears are connected by a chain drive. A first reduction motor for driving one of the rotating rods to rotate is installed on the furnace cover. A lifting drive mechanism for opening the furnace cover is provided at the top of the furnace body.

[0007] As a preferred technical solution of this utility model, the outer walls of the multiple rotating rods are connected to the same heat insulation plate via bearings. The heat insulation plate matches the inner cavity of the tempering furnace. The inner wall of the upper end of the tempering furnace body is provided with a limiting support ring plate that limits and supports the heat insulation plate.

[0008] As a preferred technical solution of this utility model, the fixed gripper includes a fixed plate disposed at the bottom end of the rotating rod, a sliding groove is provided at the bottom end of the fixed plate, a bidirectional lead screw is disposed inside the sliding groove, and a sliding block is threadedly connected to both threaded sections of the bidirectional lead screw, and a Y-shaped arc-shaped clamping plate is disposed at the bottom end of the sliding block.

[0009] As a preferred technical solution of this utility model, the lifting drive mechanism includes a U-shaped bracket located above the tempering furnace body, with a mounting frame at the top of the bracket and a rope winding roller on the mounting frame.

[0010] As a preferred technical solution of this utility model, a main steel wire rope is wound on the winding roller, and three branch ropes of equal length are provided at the end of the main steel wire rope. The bottom ends of the three branch ropes are ring-shaped and equidistantly connected to the furnace cover of the tempering furnace.

[0011] As a preferred technical solution of this utility model, the bracket is provided with a rope-passing hole for the main steel wire rope to pass through, and a second reduction motor for driving the rope-taking roller to rotate is installed on the mounting frame.

[0012] As a preferred technical solution of this utility model, the bracket is provided with a rope-passing hole for the main steel wire rope to pass through, and a second reduction motor for driving the rope-taking roller to rotate is installed on the mounting frame.

[0013] As a preferred technical solution of this utility model, the outer wall of the tempering furnace cover is provided with a guide slider that matches the support and slides.

[0014] The beneficial effects of this utility model are:

[0015] This type of mold steel uses a pit-type tempering furnace. Fixed clamps securely hold the mold steel, facilitating its fixation. The output shaft of the first reduction motor drives one of the gears to rotate. Multiple gears are connected via a chain drive, ensuring all gears rotate synchronously. The gears drive a rotating rod, which, through the fixed clamps, rotates the mold steel. This allows all the fixedly clamped mold steel to rotate, including the inner ring, preventing uneven heating between the inner and outer rings and ensuring uniform heating of all mold steel, thus improving the quality of heat treatment. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a pit-type tempering furnace for mold steel according to this utility model;

[0018] Figure 2This is a structural cross-sectional view of a pit-type tempering furnace for mold steel according to this utility model;

[0019] Figure 3 This utility model relates to a pit-type tempering furnace for mold steel. Figure 2 Enlarged section view of the middle part;

[0020] Figure 4 This is a sectional view of the fixing claw of a pit-type tempering furnace for mold steel according to this utility model;

[0021] Figure 5 This is a schematic diagram of the arc-shaped clamping plate structure of a well-type tempering furnace for mold steel according to this utility model.

[0022] In the diagram: 1. Tempering furnace body; 2. Tempering furnace cover; 3. Rotary drive mechanism; 4. Rotating rod; 5. Fixed gripper; 6. Gear; 7. Chain; 8. First geared motor; 9. Lifting drive mechanism; 10. Heat insulation plate; 11. Limiting support ring plate; 12. Fixed plate; 13. Sliding groove; 14. Arc-shaped clamp; 15. Bracket; 16. Mounting frame; 17. Rope take-up roller; 18. Main steel wire rope; 19. Support rope; 20. Rope threading hole; 21. Second geared motor; 22. Mounting support ring; 23. Reinforcing rib plate; 24. Guide slider; 25. Bidirectional lead screw; 26. Sliding block. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example: Figure 1 , Figure 2 and Figure 3As shown, this utility model discloses a well-type tempering furnace for mold steel, comprising a furnace body 1 with an opening at the top, a furnace cover 2 covering the top of the furnace body 1, and a rotary drive mechanism 3 for fixing and driving the mold steel to rotate on the furnace cover 2. The rotary drive mechanism 3 includes multiple annular and equidistantly distributed rotating rods 4 connected to the inner wall of the furnace cover 2 via rotating shafts. The bottom end of each rotating rod 4 is provided with a fixing claw 5, and the upper end of each rotating rod 4 is provided with a gear 6. The multiple gears 6 are connected by a chain 7. A first reduction motor 8 for driving one of the rotating rods 4 to rotate is installed on the furnace cover 2. The top of the tempering furnace body 1 is equipped with a lifting drive mechanism 9 for driving the opening of the tempering furnace cover 2. The fixed clamping claw 5 can fix and hold the mold steel, making it easy to fix the mold steel. The output shaft of the first reduction motor 8 drives one of the gears 6 to rotate. Multiple gears 6 are connected by a chain 7, so that all the gears 6 rotate synchronously. The gears 6 drive the rotating rod 4 to rotate. The rotating rod 4 drives the mold steel to rotate through the fixed clamping claw. This allows all the fixedly clamped mold steel to rotate, and the inner ring of the mold steel can be rotated out, avoiding uneven heating of the inner and outer rings. This ensures that all the mold steel is heated evenly and improves the heat treatment quality.

[0025] The outer walls of multiple rotating rods 4 are connected to the same heat insulation plate 10 via bearings. The heat insulation plate 10 matches the inner cavity of the tempering furnace body 1. The inner wall of the upper end of the tempering furnace body 1 is provided with a limiting support ring plate 11 to limit and support the heat insulation plate 10. This can isolate the gear 6 and chain 7 to the upper part, avoiding damage to the gear 6 and chain 7 caused by excessively high temperature inside the tempering furnace, which would affect normal use. The limiting support ring plate 11 can limit and support the heat insulation plate 10.

[0026] Specifically, such as Figure 4 and Figure 5 As shown, the fixed clamp 5 includes a fixed plate 12 located at the bottom of the rotating rod 4. The bottom end of the fixed plate 12 has a sliding groove 13. The sliding groove 13 is provided with a bidirectional lead screw 25. The bidirectional lead screw 25 is made of nickel-based alloy to ensure fatigue and creep resistance. Sliding blocks 26 are threadedly connected to both threaded sections of the bidirectional lead screw 25. The bottom end of the sliding block 26 is provided with a Y-shaped arc-shaped clamping plate 14. When fixing and clamping the mold steel, the bidirectional lead screw 25 is rotated, and the bidirectional lead screw 25 is threadedly connected to the sliding block 26. Under the guidance of the sliding groove 13, the two arc-shaped clamping plates 14 can cooperate to complete the fixing and clamping of the mold steel. Since the arc-shaped clamping plate 14 is Y-shaped, the contact area with the mold steel is small, and the tempering effect is better.

[0027] Specifically, such as Figure 1 and Figure 2As shown, the lifting drive mechanism 9 includes a U-shaped support 15 located above the tempering furnace body 1. A mounting frame 16 is located at the top of the support 15, and a rope take-up roller 17 is mounted on the mounting frame 16. A main steel wire rope 18 is wound around the rope take-up roller 17. Three equal-length branch ropes 19 are located at the ends of the main steel wire rope 18. The bottom ends of the three branch ropes 19 are annular and equidistantly connected to the tempering furnace cover 2. A rope-passing hole 20 is provided on the support 15 for the main steel wire rope 18 to pass through. A second mechanism for driving the rope take-up roller 17 to rotate is mounted on the mounting frame 16. The second gear motor 21 has an annular mounting support ring 22 on the outer wall of the tempering furnace body 1. The bottom end of the mounting support ring 22 is provided with reinforcing ribs 23 that are connected to the outer wall of the tempering furnace body 1 at equal intervals. The bottom end of the bracket 15 is fixedly connected to the mounting support ring 22. When the tempering furnace cover 2 is opened, the output shaft of the second gear motor 21 drives the winding roller 17 to rotate. The winding roller 17 winds up the steel wire rope 18, which can lift the tempering furnace cover 2. The setting of three support ropes 19 improves the stability of the movement of the tempering furnace cover 2.

[0028] The outer wall of the tempering furnace cover 2 is provided with a guide slider 24 that matches the support 15 and slides. The guide slider 24 on the tempering furnace cover 2 moves along the support 15, which improves the stability of the movement of the tempering furnace cover 2.

[0029] During operation, this type of mold steel is tempered in a pit-type furnace. The mold steel is fixedly clamped by the fixed jaws 5, which facilitates its fixation. The output shaft of the first reduction motor 8 drives one of the gears 6 to rotate. Multiple gears 6 are connected by a chain 7, so that all the gears 6 rotate synchronously. The gears 6 drive the rotating rod 4 to rotate, and the rotating rod 4 drives the mold steel to rotate through the fixed jaws. This allows all the fixedly clamped mold steel to rotate, and the inner ring of the mold steel can be rotated out, avoiding uneven heating between the inner and outer rings. This ensures that all the mold steel is heated evenly, improving the heat treatment quality.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pit-type tempering furnace for mold steel, comprising a furnace body (1) with an opening at the top, characterized in that, The top of the tempering furnace body (1) is provided with a tempering furnace cover (2) covering the top of the tempering furnace body (1), and the tempering furnace cover (2) is provided with a rotary drive mechanism (3) for fixing the mold steel and driving the mold steel to rotate. The rotary drive mechanism (3) includes multiple annular and equidistantly distributed rotating rods (4) connected to the inner wall of the tempering furnace cover (2) via a rotating shaft. The bottom end of the rotating rod (4) is provided with a fixed gripper (5), and the upper end of the rotating rod (4) is provided with a gear (6). Multiple gears (6) are connected by a chain (7). A first reduction motor (8) is installed on the tempering furnace cover (2) to drive one of the rotating rods (4) to rotate. The top of the tempering furnace body (1) is provided with a lifting drive mechanism (9) for driving the tempering furnace cover (2) to open.

2. The pit-type tempering furnace for mold steel according to claim 1, characterized in that, The outer walls of multiple rotating rods (4) are connected to the same heat insulation plate (10) via bearings. The heat insulation plate (10) matches the inner cavity of the tempering furnace body (1). The inner wall of the upper end of the tempering furnace body (1) is provided with a limiting support ring plate (11) for limiting and supporting the heat insulation plate (10).

3. The pit-type tempering furnace for mold steel according to claim 1, characterized in that, The fixed gripper (5) includes a fixed plate (12) at the bottom of the rotating rod (4). The bottom of the fixed plate (12) is provided with a sliding groove (13). The sliding groove (13) is provided with a bidirectional lead screw (25). Both threaded sections of the bidirectional lead screw (25) are threaded with sliding blocks (26). The bottom of the sliding block (26) is provided with a Y-shaped arc-shaped clamping plate (14).

4. A pit-type tempering furnace for mold steel according to claim 1, characterized in that, The lifting drive mechanism (9) includes a U-shaped bracket (15) located above the furnace body (1) of the tempering furnace. The top of the bracket (15) is provided with a mounting frame (16), and the mounting frame (16) is provided with a rope winding roller (17).

5. A pit-type tempering furnace for mold steel according to claim 4, characterized in that, A main steel wire rope (18) is wound around the take-up roller (17). The end of the main steel wire rope (18) is provided with three branch ropes (19) of equal length. The bottom ends of the three branch ropes (19) are in a ring shape and are connected to the furnace cover (2) of the tempering furnace at equal intervals.

6. A pit-type tempering furnace for mold steel according to claim 5, characterized in that, The bracket (15) has a rope hole (20) for the steel wire rope (18) to pass through, and the mounting frame (16) is equipped with a second reduction motor (21) to drive the winding roller (17) to rotate.

7. A pit-type tempering furnace for mold steel according to claim 6, characterized in that, The outer wall of the tempering furnace body (1) is provided with an annular mounting support ring (22). The bottom end of the mounting support ring (22) is provided with reinforcing ribs (23) that are connected to the outer wall of the tempering furnace body (1) at equal intervals. The bottom end of the bracket (15) is fixedly connected to the mounting support ring (22).

8. A pit-type tempering furnace for mold steel according to claim 7, characterized in that, The outer wall of the tempering furnace cover (2) is provided with a guide slider (24) that matches the support (15) and slides.

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