Heat treatment equipment for processing connecting pipe nut

By introducing a mold changing and locking mechanism into the nut processing heat treatment equipment, rapid demolding and mold replacement are achieved, solving the problem of low demolding efficiency in traditional equipment and improving production efficiency and quality.

CN224258689UActive Publication Date: 2026-05-19浙江强达紧固件股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
浙江强达紧固件股份有限公司
Filing Date
2025-06-09
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional nut processing heat treatment equipment lacks a quick demolding mechanism, resulting in a cumbersome demolding process that affects production efficiency and quality.

Method used

A heat treatment device including a mold changing mechanism and a locking mechanism was designed. The device enables rapid demolding and replacement of different types of threaded heads through an electric push rod and a locking mechanism, simplifying the mold changing process.

Benefits of technology

It improves the efficiency of demolding and mold changing, enhances production efficiency and the practicality of the equipment, and avoids damage and pollution problems caused by manual operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of nut processing, and discloses heat treatment equipment for processing a connecting pipe nut, which comprises a working table, the top of the working table is fixedly connected with a mounting frame, the top of the mounting frame is fixedly connected with a hot melting device, and the output end of the hot melting device is fixedly connected with an electric push rod. Two mounting plates are fixedly connected to the outer portion of the mounting frame, a connecting plate is slidably connected between the two mounting plates, a mold is arranged at the top of the connecting plate, mold changing mechanisms are arranged on the outer portions of the two mounting plates, a threaded head is slidably connected to the output end of an electric push rod, and a clamping groove is formed in the outer portion of the threaded head. And a clamping mechanism is arranged outside the output end of the electric push rod. According to the die replacing device, the pin rod is pulled outwards through the handle to drive the limiting block to compress the reset spring to retract into the mounting shell, at the moment, the die can be detached together with the connecting plate, the die replacing efficiency is improved, and the production efficiency of the whole device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, and in particular to a heat treatment device for processing pipe nuts. Background Technology

[0002] Nut processing heat treatment equipment is mainly used for heat treatment of metal parts such as nuts during the production process to improve their strength, wear resistance, and corrosion resistance. Nuts typically require heat treatment processes such as heating, quenching, and tempering to give them higher mechanical properties and durability. These devices play a crucial role in the nut heat treatment process, and different heat treatment processes and equipment selections will affect the final performance of the nut.

[0003] In traditional nut processing and heat treatment equipment, most machines lack a quick demolding mechanism. This makes the demolding process after nut processing cumbersome, often requiring manual labor or additional tools. The process is complex, increasing the need for manual intervention and time costs. Manual demolding can easily cause surface damage, deformation, or contamination of the nuts, affecting subsequent processing quality and performance. Demolding efficiency is also limited, especially in mass production, potentially creating a bottleneck on the production line and impacting overall production rhythm and efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a heat treatment device for processing pipe nuts, which aims to improve the problem of low demolding efficiency and reduced production efficiency caused by the lack of a quick demolding mechanism in most traditional nut processing heat treatment equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat treatment device for processing pipe nuts, comprising a workbench, a mounting frame fixedly connected to the top of the workbench, a heat melter fixedly connected to the top of the mounting frame, an electric push rod fixedly connected to the output end of the heat melter, two mounting plates fixedly connected to the outside of the mounting frame, a connecting plate slidably connected between the two mounting plates, a mold provided on the top of the connecting plate, a mold changing mechanism provided on the outside of each of the two mounting plates, the mold changing mechanism being used for quick demolding, a threaded head slidably connected to the output end of the electric push rod, a slot being provided on the outside of the threaded head, and a locking mechanism being provided on the outside of the output end of the electric push rod, the locking mechanism being used for quick replacement of threaded heads of different models;

[0006] The mold changing mechanism includes two mounting shells, with the opposite sides of the two mounting shells fixedly connected to the opposite sides of the two mounting plates. A return spring is fixedly connected inside the mounting shell, and a limit block is fixedly connected to the side of the return spring near the mounting plate. A pin is fixedly connected inside the limit block, and the pin passes through the mounting plate and engages with the outside of the connecting plate.

[0007] As a further description of the above technical solution:

[0008] A fixing box is fixedly connected to the top of the mounting shell, a sliding plate is slidably connected inside the fixing box, a baffle plate is fixedly connected to the bottom of the sliding plate, and the bottom of the baffle plate abuts against the top of the limiting block.

[0009] As a further description of the above technical solution:

[0010] The limiting block is slidably connected inside the mounting housing, and the pin passes through both ends of the mounting housing.

[0011] As a further description of the above technical solution:

[0012] A handle is fixedly connected to the side of the pin away from the limiting block.

[0013] As a further description of the above technical solution:

[0014] A control panel is provided on the front side of the workbench.

[0015] As a further description of the above technical solution:

[0016] The engaging mechanism includes a slide rod, which is slidably connected to the outside of the output end of the electric push rod. A slider is fixedly connected to the side of the slide rod near the electric push rod, and a compression spring is fixedly connected to the side of the slider away from the slide rod. Connecting rods are rotatably connected to both sides of the slider. U-shaped frames are rotatably connected to the sides of the two connecting rods away from the slider. Locking rods are fixedly connected to the sides of the two U-shaped frames away from the connecting rods. Clamps are fixedly connected to the opposite sides of the two locking rods, and both clamps engage with the locking groove.

[0017] As a further description of the above technical solution:

[0018] The slider is slidably connected inside the output end of the electric push rod, both connecting rods are slidably connected inside the output end of the electric push rod, and the side of the compression spring away from the slider is fixedly connected inside the output end of the electric push rod.

[0019] As a further description of the above technical solution:

[0020] A push handle is fixedly connected to the side of the slide bar away from the slider.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by pulling the pin rod outward with the handle, the limiting block is compressed and the reset spring is retracted into the mounting shell. The barrier plate automatically falls due to gravity, blocking the limiting block and preventing it from moving. At this time, the mold can be removed along with the connecting plate. After replacing the mold with a new one, the barrier plate is pulled up by the slide plate. The return force of the reset spring pushes the limiting block, which in turn drives the pin rod to re-engage and fix with the connecting plate. This achieves the effect of quick demolding and mold changing through the mold changing mechanism, improving the efficiency of mold changing and the overall production efficiency of the device.

[0023] 2. In this utility model, when changing different types of thread heads, the slider is pushed inward by the push handle to compress the spring. When the slider moves, the connecting rods on both sides drive the U-shaped frame, causing the clamping rod to separate the two clamps and release the engagement with the slot, thus removing the thread head. This achieves the effect of quickly changing the thread head through the clamping mechanism, making the device applicable to the production of more types of nuts and improving the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of a heat treatment device for processing pipe nuts according to the present invention;

[0025] Figure 2 This is a schematic diagram of the connecting plate of a heat treatment device for processing pipe nuts according to this utility model;

[0026] Figure 3 This is a cross-sectional view of the mounting shell of a heat treatment device for processing pipe nuts according to this utility model;

[0027] Figure 4 This is a schematic diagram of an electric push rod for a heat treatment device for processing pipe nuts according to this utility model;

[0028] Figure 5 This is a schematic diagram of the threaded head of a heat treatment device for processing pipe nuts according to this utility model;

[0029] Figure 6 This is a schematic diagram of the locking mechanism of a heat treatment device for processing pipe nuts according to this utility model.

[0030] Legend:

[0031] 1. Workbench; 2. Mounting bracket; 3. Control panel; 4. Hot melt machine; 5. Electric push rod; 6. Mounting plate; 7. Connecting plate; 8. Mounting housing; 9. Return spring; 10. Limit block; 11. Pin; 12. Fixing box; 13. Slide plate; 14. Barrier plate; 15. Handle; 16. Threaded head; 17. Slot; 18. Slide rod; 19. Slider; 20. Compression spring; 21. Connecting rod; 22. U-shaped frame; 23. Clamping rod; 24. Clamp; 25. Push handle. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a heat treatment device for processing pipe nuts, including a workbench 1, which serves to support the upper structure. A mounting frame 2 is fixedly connected to the top of the workbench 1, which serves to connect a heat melter 4. The heat melter 4 is fixedly connected to the top of the mounting frame 2 and serves to heat the nut. An electric push rod 5 is fixedly connected to the output end of the heat melter 4 and serves to install the nut. Two mounting plates 6 are fixedly connected to the outside of the mounting frame 2 and serve to install a connecting plate 7. A connecting plate 7 is slidably connected between the two mounting plates 6 and serves to place a mold. A mold is set on the top of the connecting plate 7. A mold changing mechanism is set on the outside of both mounting plates 6 for quick demolding. A threaded head 16 is slidably connected to the output end of the electric push rod 5. A slot 17 is opened on the outside of the threaded head 16. A locking mechanism is set on the outside of the output end of the electric push rod 5 for quick replacement of different types of threaded heads 16.

[0034] The mold changing mechanism includes two mounting shells 8, which serve to fix the internal structure. The opposite sides of the two mounting shells 8 are fixedly connected to the opposite sides of the two mounting plates 6. A return spring 9 is fixedly connected inside the mounting shell 8. The return spring 9 provides elastic force to push the limit block 10. The limit block 10 is fixedly connected to the side of the return spring 9 near the mounting plate 6. The limit block 10 prevents the return spring 9 from falling off. A pin 11 is fixedly connected inside the limit block 10. The pin 11 is engaged and fixed. The pin 11 passes through the mounting plate 6 and engages with the outside of the connecting plate 7. A fixing box 12 is fixedly connected to the top of the mounting shell 8. The fixing box 12 serves to fix the internal structure. A sliding plate 13 is slidably connected inside the fixing box 12. The sliding plate 13 serves to connect the baffle plate 14. The baffle plate 14 is fixedly connected to the bottom of the sliding plate 13. The baffle plate 14 serves to prevent the limit block 10 from moving. The bottom of the baffle plate 14 abuts against the top of the limit block 10. The limit block 10 is slidably connected inside the mounting shell 8. A pin 11 passes through both ends of the mounting shell 8. A handle 15 is fixedly connected to the side of the pin 11 away from the limit block 10. A control panel 3 is provided on the front side of the workbench 1.

[0035] Reference Figure 1 and Figures 4-6 The engaging mechanism includes a slide rod 18, which connects to a slider 19. The slide rod 18 is slidably connected to the outside of the output end of the electric push rod 5. A slider 19 is fixedly connected to the side of the slide rod 18 closest to the electric push rod 5. The slider 19 connects to a compression spring 20. A compression spring 20 is fixedly connected to the side of the slider 19 furthest from the slide rod 18. The compression spring 20 provides elastic force to push the slider 19. Connecting rods 21 are rotatably connected to both sides of the slider 19. Connecting rods 21 connect to U-shaped frames 22. U-shaped frames 22 are rotatably connected to the sides of the two connecting rods 21 furthest from the slider 19. U-shaped frames 22 connect to locking rods 23. Locking rods 23 are fixedly connected to the sides of the two U-shaped frames 22 furthest from the connecting rods 21. Locking rods 23 connect to clamps 24. Clamps 24 are fixedly connected to the opposite sides of the two locking rods 23. Clamps 24 engage with the locking grooves 17. The slider 19 is slidably connected inside the output end of the electric push rod 5. Both connecting rods 21 are slidably connected inside the output end of the electric push rod 5. The compression spring 20 is fixedly connected inside the output end of the electric push rod 5 on the side away from the slider 19. The push handle 25 is fixedly connected to the side of the slide rod 18 away from the slider 19.

[0036] Working principle: The nut is heated by the hot melter 4, and the nut is embedded into the mold on the top of the connecting plate 7 by the electric push rod 5. After the mold cools and solidifies, the demolding operation can be carried out. By pulling the pin 11 outward by the handle 15, the limit block 10 is driven to compress the return spring 9 and retract into the mounting shell 8. The barrier plate 14 automatically falls under the influence of gravity and blocks the limit block 10, preventing it from moving. At this time, the mold can be removed along with the connecting plate 7. After replacing the mold, the barrier plate 14 is pulled up by the slide plate 13. The return force of the return spring 9 pushes the limit block 10, which drives the pin 11 to re-engage and fix with the connecting plate 7.

[0037] When replacing different models of threaded heads 16, push the slide bar 18 inward with the push handle 25 to move the slider 19 inward and compress the spring 20. When the slider 19 moves, it drives the U-shaped frame 22 through the connecting rods 21 on both sides, so that the locking rod 23 drives the two clamps 24 to separate and release the locking state with the slot 17, and the threaded head 16 can be removed.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat treatment device for processing pipe fitting nuts, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a mounting bracket (2), the top of the mounting bracket (2) is fixedly connected to a hot melter (4), the output end of the hot melter (4) is fixedly connected to an electric push rod (5), the outside of the mounting bracket (2) is fixedly connected to two mounting plates (6), a connecting plate (7) is slidably connected between the two mounting plates (6), the top of the connecting plate (7) is provided with a mold, the outside of the two mounting plates (6) is provided with a mold changing mechanism, the mold changing mechanism is used for quick demolding, the output end of the electric push rod (5) is slidably connected to a threaded head (16), the outside of the threaded head (16) is provided with a slot (17), the outside of the output end of the electric push rod (5) is provided with a locking mechanism, the locking mechanism is used for quick replacement of different models of the threaded head (16). The mold changing mechanism includes two mounting shells (8), and the opposite sides of the two mounting shells (8) are respectively fixedly connected to the opposite sides of the two mounting plates (6). A return spring (9) is fixedly connected inside the mounting shell (8). A limit block (10) is fixedly connected to the side of the return spring (9) near the mounting plate (6). A pin (11) is fixedly connected inside the limit block (10). The pin (11) passes through the mounting plate (6) and engages with the outside of the connecting plate (7).

2. The heat treatment equipment for processing pipe fitting nuts according to claim 1, characterized in that: The top of the mounting shell (8) is fixedly connected to a fixing box (12), and a sliding plate (13) is slidably connected inside the fixing box (12). A barrier plate (14) is fixedly connected to the bottom of the sliding plate (13), and the bottom of the barrier plate (14) abuts against the top of the limiting block (10).

3. The heat treatment equipment for processing pipe fitting nuts according to claim 1, characterized in that: The limiting block (10) is slidably connected inside the mounting shell (8), and the pin (11) passes through both ends of the mounting shell (8).

4. The heat treatment equipment for processing pipe fitting nuts according to claim 1, characterized in that: A handle (15) is fixedly connected to the side of the pin (11) away from the limiting block (10).

5. The heat treatment equipment for processing pipe fitting nuts according to claim 1, characterized in that: A control panel (3) is provided on the front side of the workbench (1).

6. The heat treatment equipment for processing pipe fitting nuts according to claim 1, characterized in that: The engaging mechanism includes a slide rod (18), which is slidably connected to the outside of the output end of the electric push rod (5). A slider (19) is fixedly connected to the side of the slide rod (18) near the electric push rod (5). A compression spring (20) is fixedly connected to the side of the slider (19) away from the slide rod (18). Connecting rods (21) are rotatably connected to both sides of the slider (19). A U-shaped frame (22) is rotatably connected to the side of the two connecting rods (21) away from the slider (19). A locking rod (23) is fixedly connected to the side of the two U-shaped frames (22) away from the connecting rods (21). A clamp (24) is fixedly connected to the opposite side of the two clamps (23). Both clamps (24) engage with the locking groove (17).

7. The heat treatment equipment for processing pipe fitting nuts according to claim 6, characterized in that: The slider (19) is slidably connected inside the output end of the electric push rod (5), and both connecting rods (21) are slidably connected inside the output end of the electric push rod (5). The compression spring (20) is fixedly connected inside the output end of the electric push rod (5) on the side away from the slider (19).

8. The heat treatment equipment for processing pipe fitting nuts according to claim 6, characterized in that: A push handle (25) is fixedly connected to the side of the slide bar (18) away from the slider (19).