Annealing device for spring washer production

By designing an annealing device with a rotating frame and heating mechanism, the problem of uneven temperature during the annealing process of spring pads was solved, achieving improved temperature uniformity and efficiency, and saving energy.

CN223892802UActive Publication Date: 2026-02-10HANDAN TURUI FASTENER MANUFACTURING CO LTD
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Patent Information

Application Number
CN202520344683.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-01
Publication Date
2026-02-10
Estimated Expiration
2035-03-01

AI Technical Summary

Technical Problem

In the prior art, the accumulation of spring pads during the annealing process leads to uneven temperature, which affects the annealing efficiency.

Method used

An annealing device including a rotating frame and a heating mechanism was designed. The device uses multiple trays to hold spring pads in layers and the rotating frame drives the trays to rotate. Combined with heating and hot air circulation, the device improves temperature uniformity and efficiency.

Benefits of technology

It achieves uniform heating and efficient cooling of the spring pad, improves annealing efficiency, and saves energy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an annealing device for spring washer production, which comprises an annealing box, a feed port is arranged on the front side of the annealing box, a protective door is mounted at the feed port, a containing mechanism is arranged in the annealing box, and a heating mechanism is connected onto the annealing box. The containing mechanism comprises a rotating frame and a containing disc. The heating mechanism comprises a heating box, a heater, an air inlet channel and an air exhaust channel. The spring washer storage device has the beneficial effects that the spring washers are stored in a layered manner by using the plurality of storage discs, so that the stacking thickness of the spring washers can be reduced, the spring washers can be conveniently heated, the contact area between the spring washers and air in the annealing box is increased, the spring washers can be stably and efficiently cooled, and the storage discs can be rotated, so that the spring washers can be conveniently stored. The flowing speed between the spring washer and air is increased, temperature rise is facilitated, hot air can be recycled, and electric energy is saved.
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Description

Technical Field

[0001] This utility model relates to the technical field of spring pad processing equipment, and more specifically, to an annealing device for spring pad production. Background Technology

[0002] Spring washers are components installed under nuts to prevent them from loosening. During the production of spring washers, they need to be annealed, so an annealing device is required to anneal many spring washers.

[0003] In the existing technology, when annealing spring pads, a large number of spring pads are usually piled together for heating, heat preservation and cooling. However, there are some problems in its use. Due to the large number of spring pads piled up, the temperature of the outer spring pads changes faster and the temperature of the inner spring pads changes slower, which will affect the annealing efficiency.

[0004] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned problems by designing an annealing device for the production of spring pads.

[0006] The technical solution of this utility model to achieve the above objectives is an annealing device for the production of spring pads, including an annealing box, a feed inlet on the front side, a protective door installed at the feed inlet, a holding mechanism inside the annealing box, and a heating mechanism connected to the annealing box.

[0007] The holding mechanism includes a rotating frame installed inside the annealing chamber, on which multiple holding trays are detachably mounted. The multiple holding trays are stacked on the rotating frame, and spring pads are placed on the holding trays. The rotating frame can drive the holding trays to rotate.

[0008] The heating mechanism includes a heating box installed on the upper end of the annealing box, a heater installed inside the heating box, an air inlet channel installed at one end of the heating box and connected to the annealing box at one end, and an exhaust channel installed at the other end of the heating box and connected to the annealing box at one end.

[0009] Furthermore, the rotating frame includes a square drive rod located inside the annealing chamber, with circular drive rods installed at both ends of the square drive rod. Rolling bearings are installed at the upper and lower ends of the annealing chamber, with one end of the circular drive rod extending into the rolling bearing. A servo motor is installed at the upper end of the annealing chamber, and the rotating end of the servo motor is connected to the circular drive rod via a coupling. A rotating plate is installed at the lower end of the square drive rod, and multiple connecting rods are installed on the rotating plate.

[0010] Furthermore, the holding tray includes a circular holding plate with a square notch that can be fitted onto the outside of a square drive rod. The lower end of the circular holding plate has multiple connecting holes that can be fitted onto the outside of a connecting rod. A baffle is installed at the edge of the circular holding plate, and multiple connecting shafts are installed at the upper end of the baffle. The connecting shafts can extend into the connecting holes above them. A cover plate is installed on the uppermost holding tray.

[0011] Furthermore, the rotating plate, the circular holding plate, and the baffle are provided with multiple ventilation holes.

[0012] Furthermore, a blower is installed inside the air intake duct.

[0013] The beneficial effects of this utility model are as follows: By using multiple trays to hold the spring pads in layers, the thickness of the spring pad stack can be reduced, which facilitates heating of the spring pads, increases the contact area between the spring pads and the air in the annealing chamber, and enables stable and efficient cooling of the spring pads. The trays can also be rotated to increase the flow speed between the spring pads and the air, which facilitates heating. Hot air can be recycled, saving energy. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the annealing device for producing spring pads according to the present invention;

[0015] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0016] Figure 3 yes Figure 1 A magnified view of a section at point B in the middle;

[0017] Figure 4 yes Figure 1 A magnified view of a section at point C;

[0018] Figure 5 This is a schematic diagram showing the positional relationship between the square drive rod and the holding tray described in this utility model;

[0019] Figure 6 This is a schematic diagram showing the connection relationship between the annealing chamber and the heating chamber described in this utility model;

[0020] In the diagram, 1. Annealing chamber; 2. Feed inlet; 3. Protective door; 4. Rotating frame; 5. Holding tray; 6. Heating chamber; 7. Heater; 8. Air inlet channel; 9. Air outlet channel; 10. Square drive rod; 11. Circular drive rod; 12. Rolling bearing; 13. Servo motor; 14. Rotating plate; 15. Connecting rod; 16. Circular holding plate; 17. Square notch; 18. Connecting hole; 19. Baffle; 20. Connecting shaft; 21. Cover plate; 22. Vent hole; 23. Blower. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] This utility model provides, for example Figure 1-6 An annealing apparatus for producing spring pads is shown, comprising an annealing chamber 1 with a feed inlet 2 on the front side and a protective door 3 installed at the feed inlet 2. The annealing chamber 1 is equipped with a holding mechanism and a heating mechanism connected to it. The holding mechanism includes a rotating frame 4 installed inside the annealing chamber 1, on which multiple holding trays 5 are detachably mounted. The multiple holding trays 5 are stacked on the rotating frame 4, and spring pads are placed on the holding trays 5. The rotating frame 4 can drive the holding trays 5 to rotate. The heating mechanism includes a heating chamber 6 installed at the upper end of the annealing chamber 1, with a heater 7 installed inside. One end of the heating chamber 6 is equipped with an air inlet channel 8 connected to the annealing chamber 1, and the other end of the heating chamber 6 is equipped with an exhaust channel 9 connected to the annealing chamber 1.

[0024] The annealing process of this device for spring pads is as follows: A large number of spring pads are placed on multiple holding trays 5, the protective door 3 is opened, and then the multiple holding trays 5 are stacked on the rotating frame 4 through the feed port 2. The protective door 3 is closed, the air in the heating chamber 6 is heated by the heater 7, and then the hot air is introduced into the annealing chamber 1 through the air inlet channel 8 for heating. The air in the annealing chamber 1 is discharged into the heating chamber 6 through the exhaust channel 9, so that the hot air can be recycled and energy consumption is reduced. When the temperature in the annealing chamber 1 is reached, the heater 7 is used to maintain a sufficient temperature in the annealing chamber 1. After a period of time, the heater 7 is turned off to allow it to cool down naturally. Then the protective door 3 is opened, and the material is replaced through the feed port 2.

[0025] Refer to the instruction manual appendix Figure 1 Included with instruction manual Figure 2 The rotating frame 4 includes a square drive rod 10 located inside the annealing box 1. Circular drive rods 11 are installed at both ends of the square drive rod 10. Rolling bearings 12 are installed at the upper and lower ends of the annealing box 1. One end of the circular drive rod 11 extends into the rolling bearing 12. A servo motor 13 is installed at the upper end of the annealing box 1. The rotating end of the servo motor 13 is connected to the circular drive rod 11 through a coupling. A rotating plate 14 is installed at the lower end of the square drive rod 10. Multiple connecting rods 15 are installed on the rotating plate 14.

[0026] The rotation process of the rotating frame 4 is as follows: the servo motor 13 is started to rotate. The servo motor 13 can drive the circular drive rod 11, the square drive rod 10 and the rotating plate 14 to rotate through the coupling. The rotating plate 14 can hold the holding tray 5, and the square drive rod 10 can drive the holding tray 5 to rotate.

[0027] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Included with instruction manual Figure 5 The holding tray 5 includes a circular holding plate 16 with a square notch 17. The square notch 17 can be fitted onto the outside of the square drive rod 10. The lower end of the circular holding plate 16 has multiple connecting holes 18, which can be fitted onto the outside of the connecting rod 15. A baffle 19 is installed at the edge of the circular holding plate 16. Multiple connecting shafts 20 are installed at the upper end of the baffle 19. The connecting shafts 20 can extend into the connecting holes 18 above them. A cover plate 21 is installed at the upper end of the uppermost holding tray 5.

[0028] The process of the square drive rod 10 driving the tray 5 to rotate is as follows: The square notch 17 on the circular tray 16 is fitted onto the square drive rod 10, and then the circular tray 16 is moved downward so that the connecting hole 18 is fitted onto the connecting rod 15, thereby limiting the bottom circular tray 16. Then, other circular trays 16 are placed on top in sequence, and the connecting holes 18 are fitted onto the connecting shaft 20. The top tray 5 is equipped with a cover plate to prevent the spring pad from falling off. When the square drive rod 10 rotates, the circular tray 16 can be driven to rotate by the engagement of the square drive rod 10 and the square notch 17.

[0029] Refer to the instruction manual appendix Figure 1 Instruction manual attached Figure 2 Instruction manual attached Figure 3 Instruction manual attached Figure 4 Included with instruction manual Figure 5 The rotating plate 14, the circular holding plate 16 and the baffle 19 have multiple ventilation holes 22, which allow hot air in the annealing box 1 to enter the holding tray 5 through the ventilation holes 22 to heat the spring pad.

[0030] Refer to the instruction manual appendix Figure 1 A blower 23 is installed inside the air inlet channel 8. The blower 23 can accelerate the air flow and improve the heating efficiency.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An annealing apparatus for producing spring pads, comprising an annealing chamber (1) with a feed inlet (2) on the front side, wherein a protective door (3) is installed at the feed inlet (2), characterized in that, The annealing box (1) is equipped with a holding mechanism, and a heating mechanism is connected to the annealing box (1); The holding mechanism includes a rotating frame (4) installed in the annealing box (1), on which multiple holding trays (5) are detachably mounted. The multiple holding trays (5) are stacked on the rotating frame (4), and spring pads are placed on the holding trays (5). The rotating frame (4) can drive the holding trays (5) to rotate. The heating mechanism includes a heating box (6) installed on the upper end of the annealing box (1), a heater (7) installed inside the heating box (6), an air inlet channel (8) installed at one end of the heating box (6), one end of the air inlet channel (8) being connected to the annealing box (1), and an exhaust channel (9) installed at the other end of the heating box (6), one end of the exhaust channel (9) being connected to the annealing box (1).

2. An annealing apparatus for producing spring pads according to claim 1, characterized in that, The rotating frame (4) includes a square drive rod (10) located inside the annealing box (1). Circular drive rods (11) are installed at both ends of the square drive rod (10). Rolling bearings (12) are installed at the upper and lower ends of the annealing box (1). One end of the circular drive rod (11) extends into the rolling bearing (12). A servo motor (13) is installed at the upper end of the annealing box (1). The rotating end of the servo motor (13) is connected to the circular drive rod (11) through a coupling. A rotating plate (14) is installed at the lower end of the square drive rod (10). Multiple connecting rods (15) are installed on the rotating plate (14).

3. An annealing apparatus for producing spring pads according to claim 2, characterized in that, The holding tray (5) includes a circular holding plate (16), on which a square notch (17) is opened. The square notch (17) can be fitted onto the outside of the square drive rod (10). The lower end of the circular holding plate (16) has multiple connecting holes (18), which can be fitted onto the outside of the connecting rod (15). A baffle (19) is installed at the edge of the circular holding plate (16), and multiple connecting shafts (20) are installed at the upper end of the baffle (19). The connecting shafts (20) can extend into the connecting holes (18) above them. A cover plate (21) is installed at the upper end of the uppermost holding tray (5).

4. An annealing apparatus for producing spring pads according to claim 3, characterized in that, The rotating plate (14), the circular holding plate (16), and the baffle (19) have multiple ventilation holes (22).

5. An annealing apparatus for producing spring pads according to claim 1, characterized in that, A blower (23) is installed in the air intake channel (8).