Heat treatment device for hardware machining
By introducing a reciprocating movement of a placement rack and a glass observation window into the heat treatment device for hardware processing, the problem of uneven heating was solved, enabling rapid and uniform heating of hardware parts, thus improving the heat treatment effect and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-04-14
AI Technical Summary
In existing heat treatment equipment for hardware processing, the heating degree of the hardware parts is uneven between the parts near the heating module and the parts far from the heating module, resulting in excessive or insufficient heat treatment, which affects production efficiency and product quality.
A heat treatment device with a placement rack was designed. It uses resistance wire and hot air blower for heating, and combines the electric control unit to drive the rotating arm to move the placement rack in a reciprocating arc, so that the hardware parts are heated evenly. The heat treatment process is monitored in real time through a glass observation window.
This technology enables rapid and uniform heating of hardware parts, improves heat treatment results, reduces defect rates, and enhances production efficiency and product quality.
Smart Images

Figure CN224119047U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hardware processing technology, and specifically relates to a heat treatment device for hardware processing. Background Technology
[0002] Heat treatment in hardware manufacturing is a process that alters the internal structure of metal materials through heating and cooling, thereby improving their mechanical, physical, or chemical properties. Heat treatment can significantly enhance the hardness, strength, toughness, and wear resistance of hardware, making it an indispensable step in manufacturing high-quality hardware.
[0003] Existing heat treatment equipment for hardware processing involves placing the hardware parts to be heat-treated into a box furnace, then activating the furnace's electric heating module. The furnace uses resistance wires or silicon carbide rods and a hot air blower to heat the hardware parts. However, during operation, because the hardware parts are stationary during heat treatment, the areas near and away from the heating module on the same piece are heated to different degrees. This means that after a certain heating time, the areas near the heating module may be overheated, while the areas away are only adequately heated. This can result in a small number of overheated pieces, potentially increasing the defect rate and impacting production efficiency. Utility Model Content
[0004] In view of this, the present invention addresses the shortcomings of the prior art by providing a heat treatment device for hardware processing. When heating hardware by resistance wire and hot air blower, the device moves the hardware by a placement rack, thereby enabling the hardware to be heated quickly and evenly, and improving the heat treatment effect of hardware processing.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a heat treatment device for hardware processing, including a frame, a box body is arranged inside the frame, symmetrically distributed partition plates are arranged inside the box body, and a perforated plate is arranged in the mounting groove opened in the middle of the partition plate. A uniformly distributed air vent is arranged on the outside of the box body, and a symmetrically distributed sealing door is rotatably arranged on the front side of the box body. A handle is arranged in the middle of the sealing door. A resistance wire module is arranged between the partition plate and the adjacent inner wall of the box body. A hot air blower is arranged symmetrically on the inner walls of the left and right sides of the box body. A hardware placement module for placing hardware parts is also arranged on the box body. A uniformly distributed support leg is arranged on the lower surface of the frame, and a rubber pad is arranged on the lower surface of the support leg.
[0006] As a further improvement of this utility model, the hardware placement module includes a rotating shaft uniformly rotatably disposed on the inner wall of the rear side of the housing. A rotating arm is fixedly sleeved on the front end of the outer arc of each rotating shaft, and the lower end of each rotating arm is rotatably connected to a placement frame. A uniformly distributed placement frame is slidably disposed inside the placement frame. An electrical control unit for driving the rotating shaft to rotate is also disposed on the housing. The electrical control unit includes a drive box disposed on the rear side of the housing. Symmetrically distributed drive shafts are disposed on the inner wall of the front side of the drive box. Each drive shaft is fixed to an adjacent rotating shaft via a coupling. Worm gears are fixedly sleeved on the outer side of each drive shaft. Symmetrically distributed mounting seats are disposed on the inner wall of the front side of the drive box. A worm gear is rotatably disposed inside each mounting seat, and the worm gear meshes with an adjacent worm gear. An electrical control component for driving the worm gear to rotate is also disposed on the drive box.
[0007] As a further improvement of this utility model, the electrical control assembly includes motors symmetrically arranged on the inner wall of the front side of the drive box, and the output shafts of the motors are fixed to the adjacent worm gears by couplings; a control box is set in the middle of the sealing door on the right side, and the motor, hot air blower and resistance wire module are all electrically connected to the control box.
[0008] As a further improvement of this utility model, a glass observation window is provided in the mounting groove opened in the middle of the sealed door.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0010] Firstly, the resistance wire module heats the air around it. A hot air blower draws in the air through the vent and heats it, then blows the hot air onto the metal parts inside the housing for heat treatment.
[0011] Secondly, by rotating the arm synchronously and in the same direction, the placement rack moves in a reciprocating arc inside the box, causing the hardware placed inside the placement rack to move in a reciprocating arc. This allows the hardware to be heated quickly and evenly, improving the heat treatment effect of the hardware processing.
[0012] Third, the output shaft of the motor drives the worm gear connected to it to rotate in both forward and reverse directions in a cyclical manner. This causes the worm gear to drive the worm wheel connected to it to rotate, which in turn causes the drive shaft to drive the rotating shaft connected to it to rotate. This causes the rotating shaft to drive the rotating arm to continuously and stably reciprocate in the same direction.
[0013] Fourth, the glass observation window set in the middle of the sealed door allows personnel to better observe the heat treatment process of the hardware, thereby enabling better control over the heat treatment of the hardware. Attached Figure Description
[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;
[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0018] Figure 4 This is a schematic diagram of the planar structure of this utility model.
[0019] In the diagram: 101, frame; 102, housing; 103, support leg; 104, partition plate; 105, perforated plate; 106, air vent; 107, sealed door; 108, handle; 109, glass observation window; 201, rotating arm; 202, placement rack; 203, placement frame; 204, drive box; 205, drive shaft; 206, mounting base; 207, worm gear; 208, motor; 301, hot air blower; 302, resistance wire module; 401, control box. Detailed Implementation
[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.
[0021] like Figure 1 , 4 As shown, the device includes a frame 101, inside which is a housing 102. Inside the housing 102, there are symmetrically distributed partitions 104. Each partition 104 has a mounting groove in the middle containing a perforated plate 105. The outer side of the housing 102 has evenly distributed air vents 106. The front of the housing 102 has symmetrically distributed sealing doors 107, each with a handle 108 in the middle. Resistance wire modules 302 are installed between the partitions 104 and the adjacent inner walls of the housing 102. Hot air blowers 301 are symmetrically distributed on the left and right inner walls of the housing 102. The housing 102 also has a hardware placement module for placing hardware components.
[0022] like Figure 1 , 4 As shown, the lower surface of the frame 101 is provided with evenly distributed support legs 103, and the lower surface of each support leg 103 is provided with a rubber pad.
[0023] like Figure 2 ,3 As shown, the hardware placement module includes a rotating shaft uniformly rotatably mounted on the inner rear wall of the housing 102. Rotating arms 201 are fixedly fitted onto the outer arc front end of each rotating shaft. The lower ends of the rotating arms 201 are rotatably connected to the placement frame 202. Placement frames 203 are slidably arranged inside the placement frame 202. An electronic control unit for driving the rotating shaft is also provided on the housing 102. The electronic control unit includes a drive box 204 located on the rear side of the housing 102. Symmetrically distributed drive shafts 205 are arranged on the inner front wall of the drive box 204. The drive shafts 205 are... The drive shaft 205 is fixed to the adjacent rotating shaft via a coupling. Worm gears are fixedly sleeved on the outer side of the drive shaft 205. The front inner wall of the drive housing 204 is provided with symmetrically distributed mounting seats 206. Worm gears 207 are rotatably installed inside the mounting seats 206. The worm gears 207 are respectively meshed with the adjacent worm gears. The drive housing 204 is also provided with an electrical control assembly for driving the worm gears 207 to rotate. The electrical control assembly includes motors 208 symmetrically arranged on the front inner wall of the drive housing 204. The output shafts of the motors 208 are respectively fixed to the adjacent worm gears 207 via couplings.
[0024] like Figure 1 , 2 As shown, a control box 401 is located in the middle of the sealing door 107 on the right side. The motor 208, hot air blower 301 and resistance wire module 302 are all electrically connected to the control box 401.
[0025] During use, the operator pulls the placement frame 203 out of the placement rack 202, places the hardware parts requiring heat treatment inside the placement frame 203, inserts the placement frame 203 back into the placement rack 202, and then rotates the sealing door 107 by holding the handle 108 to close the housing 102. The control box 401 regulates the operation of the motor 208, the hot air blower 301, and the resistance wire module 302, causing the resistance wire module 302 to heat the surrounding air. The hot air blower 301 draws in air through the air vent 106 and heats it, then blows the hot air onto the hardware parts inside the housing 102 for heat treatment. The output shaft of the motor 208... The worm gear 207 connected to it rotates in both forward and reverse cycles, which in turn causes the worm wheel connected to it to rotate, which in turn causes the drive shaft 205 connected to it to rotate, which in turn causes the rotating shaft connected to it to rotate, which in turn causes the rotating arm 201 to swing back and forth synchronously in the same direction. The synchronous swing of the rotating arm 201 causes the placement rack 202 to move in a reciprocating arc inside the housing 102, which in turn causes the hardware parts placed inside the placement rack 202 to move in a reciprocating arc. This allows the hardware parts to be heated quickly and evenly, improving the heat treatment effect of the hardware parts processing.
[0026] According to another embodiment of the present invention, such as Figure 1 , 2 As shown, each of the mounting slots in the middle of the sealed door 107 is equipped with a glass observation window 109. During the heat treatment of hardware, the glass observation window 109 in the middle of the sealed door 107 allows personnel to better observe the heat treatment process of the hardware, thereby enabling better control over the heat treatment of the hardware.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A heat treatment apparatus for processing hardware parts, comprising a frame (101), characterized in that: The frame (101) is equipped with a box (102) inside. The box (102) is equipped with symmetrically distributed partitions (104). Each partition (104) has a slot with a perforated plate (105) in the middle. The box (102) is equipped with evenly distributed air vents (106) on the outside. The front of the box (102) is equipped with symmetrically distributed sealing doors (107). Each sealing door (107) has a handle (108) in the middle. A resistance wire module (302) is provided between the partition (104) and the inner wall of the adjacent box (102). The inner walls of the left and right sides of the box (102) are equipped with symmetrically distributed hot air blowers (301). The box (102) is also equipped with a hardware placement module for placing hardware parts.
2. The heat treatment apparatus for hardware processing as described in claim 1, characterized in that: The lower surface of the frame (101) is provided with evenly distributed support legs (103), and the lower surface of each support leg (103) is provided with a rubber pad.
3. The heat treatment apparatus for hardware processing as described in claim 1, characterized in that: The hardware placement module includes a rotating shaft that is uniformly rotated on the inner wall of the rear side of the housing (102). The outer arc front end of the rotating shaft is fixedly fitted with a rotating arm (201). The lower end of the rotating arm (201) is rotatably connected to the placement frame (202). The placement frame (202) is slidably provided with uniformly distributed placement frames (203). The housing (102) is also provided with an electrical control unit for driving the rotating shaft to rotate.
4. The heat treatment apparatus for hardware processing as described in claim 3, characterized in that: The electronic control unit includes a drive box (204) located on the rear side of the housing (102). The front inner wall of the drive box (204) is provided with symmetrically distributed drive shafts (205). The drive shafts (205) are fixed to adjacent rotating shafts by couplings. Worm gears are fixedly sleeved on the outer side of the drive shafts (205). The front inner wall of the drive box (204) is provided with symmetrically distributed mounting seats (206). A worm (207) is rotatably installed inside the mounting seat (206). The worm (207) is meshed with adjacent worm gears. The drive box (204) is also provided with an electronic control component for driving the worm (207) to rotate.
5. The heat treatment apparatus for hardware processing as described in claim 4, characterized in that: The electronic control assembly includes motors (208) symmetrically arranged on the inner wall of the front side of the drive box (204), and the output shafts of the motors (208) are fixed to the adjacent worm gears (207) by couplings.
6. The heat treatment apparatus for hardware processing as described in claim 5, characterized in that: A control box (401) is provided in the middle of the sealed door (107) on the right side. The motor (208), hot air blower (301) and resistance wire module (302) are all electrically connected to the control box (401).
7. The heat treatment apparatus for hardware processing as described in claim 1, characterized in that: Each of the mounting slots in the middle of the sealed door (107) is equipped with a glass observation window (109).