A heat treatment apparatus for hardware

Abstract

This utility model relates to a heat treatment device for hardware parts, including: a quenching tank, a heat insulation plate fixed to the quenching tank, a drain outlet in the quenching tank, a support rod under the quenching tank, a settling tank under the support rod, a partition plate fixed to the settling tank, a rotating rod rotatably mounted inside the heat insulation plate and the partition plate, an adjusting rod fixed to the rotating rod, a sealing plate fixed to the outside of the rotating rod, and a drain pipe connected to the sealing plate; by the operator rotating the adjusting rod, the rotating rod, the sealing plate and the drain pipe rotate, aligning the drain pipe with the drain outlet, and directing the high-temperature medium on the left side into the left side of the settling tank. After impurities are intercepted by the filter plate, the fan assembly drives air through the protective cover air duct to remove the heat from the heat dissipation fins, thus cooling the medium; at the same time, the connecting cylinder rotates to connect the inlet tank and the connecting tank, and then the centrifugal pump is started to pump the cooling medium on the right side to the right side of the quenching tank, preventing the mixing of new and old media from affecting the quenching efficiency. The production efficiency is improved by alternating operation on the left and right sides.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat treatment equipment for hardware parts, and specifically relates to a heat treatment equipment for hardware parts. Background Technology

[0002] Heat treatment of hardware parts involves heating, holding, and cooling to alter the internal structure of the metal, thereby improving its properties such as hardness, strength, and wear resistance. In the entire heat treatment process, the quenching tank plays a crucial role as the core equipment in the cooling stage. It is mainly used to hold media such as water, oil, and polymer solutions. When high-temperature hardware parts are immersed in the quenching tank, the medium rapidly exchanges heat with the workpiece, carrying away a large amount of heat and causing the workpiece to cool quickly. This promotes phase transformation in the metal, achieving performance enhancement, such as forming a high-hardness martensitic structure in steel.

[0003] However, existing quenching tanks have limitations in practical applications. During the quenching process of hardware parts, a large amount of heat carried by the workpiece is transferred to the medium, causing the medium temperature to rise significantly. Once the medium temperature exceeds the allowable range of the process, its cooling capacity will drop sharply, which will not only fail to meet the cooling requirements of the subsequent hardware parts, but may even cause unstable quenching quality of the workpiece, resulting in problems such as insufficient hardness, deformation, or cracking. In order to ensure the quenching effect, it is often necessary to replace the medium in a timely manner. When replacing the medium, in order to prevent the new medium from mixing with the old medium, it is necessary to completely drain the old medium before adding the new medium. Such an operation will make the medium replacement time-consuming and labor-intensive, which will seriously affect the quenching efficiency and production progress of hardware parts. To address these issues, we propose a heat treatment equipment for hardware parts to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a heat treatment device for hardware parts to solve the problems existing in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A heat treatment device for hardware parts, comprising:

[0007] A quenching tank, wherein a heat insulation plate is fixed in the middle of the quenching tank, and two drain outlets are opened at the bottom of the quenching tank, which are symmetrical about the heat insulation plate;

[0008] A settling tank, wherein a partition is fixed in the middle of the settling tank;

[0009] Four support rods are evenly distributed between the quenching tank and the stationary tank at their respective facing ends;

[0010] Cooling components are used to cool the medium;

[0011] A circulation component is used to redirect the cooled medium back into the quenching tank.

[0012] An adjustment assembly is provided between the heat insulation plate and the partition plate;

[0013] The adjustment component includes:

[0014] A rotating rod, which is rotatably disposed inside the heat insulation plate and the partition plate;

[0015] An adjusting rod is fixedly connected to one end of the rotating rod that extends out of the heat insulation plate;

[0016] A sealing disc is fixedly connected to the outside of the rotating rod and abuts against the end of the quenching tank facing the stationary tank.

[0017] A drain pipe is connected to the end of the sealing plate facing the settling tank, and the connection port of the drain pipe matches the drain outlet.

[0018] Further specifying, the cooling assembly includes:

[0019] Several heat dissipation fins are evenly disposed between the two sides of the partition and the inner wall of the stationary groove.

[0020] A fan assembly, which is mounted on the outside of the stationary slot;

[0021] Two protective covers are fixedly connected to the outside of the stationary slot, and the ends of each heat dissipation fin that pass through the stationary slot are located inside the protective cover. The end of the protective cover near the fan assembly is connected to an air inlet pipe, and the end of the protective cover away from the fan assembly is provided with an exhaust port.

[0022] Further specifying, the loop component includes:

[0023] The connecting cylinder has a cavity inside the partition plate, and the connecting cylinder rotates inside the cavity. The connecting cylinder is fixedly connected to one end of the rotating rod that extends into the cavity. The inner wall of the cavity has symmetrically opened communication grooves that communicate with the settling groove, and the outer side of the connecting cylinder has a liquid inlet groove that matches the communication groove.

[0024] A centrifugal pump, which is placed on the ground, has an inlet pipe between its suction end and the connecting cylinder, and an outlet pipe between its discharge end and the adjusting rod.

[0025] A drain valve is rotatably and sealingly connected to the outlet pipe.

[0026] Further specified, the opening inside the quenching tank is set as a semi-cylindrical shape, and each of the heat insulation plates is hinged to a mesh plate at one end facing away from each other, and a handle is provided on the side of each of the two mesh plates that is far apart from each other.

[0027] Furthermore, the quenching tank is symmetrically equipped with intercepting rods inside, and the intercepting rods are higher than the leakage port.

[0028] Furthermore, filter plates are symmetrically placed inside the static tank, and the two filter plates respectively abut against each of the uppermost heat dissipation fins.

[0029] The beneficial effects of this utility model are:

[0030] 1. By rotating and linking the rotating rod, adjusting rod, sealing plate, and leakage pipe, the high-temperature medium on one side of the quenching tank is directionally discharged to the corresponding side of the settling tank, avoiding the time-consuming operation of draining the entire liquid in traditional equipment and improving replacement efficiency. At the same time, the partition design of the heat insulation plate and the partition plate ensures that the medium on the left and right sides of the quenching tank and the settling tank flows independently, preventing the uncooled medium from mixing with the high-temperature medium and maintaining cooling efficiency.

[0031] 2. By combining the fan-shaped column slot of the quenching tank with the hinged placement of the mesh plate, compared with the traditional straight slot, the dead angle of medium flow is reduced, and the placement of the mesh plate for rotation and loading / unloading is facilitated, thus improving the convenience of operation.

[0032] 3. The design of the interceptor bar being higher than the drain outlet prevents workpieces from falling and clogging the drain outlet. Traditional equipment does not have this protection, and parts may accidentally fall into the quenching tank, blocking the outlet of the medium. This requires frequent manual cleaning. This structure improves the reliability of the equipment. Attached Figure Description

[0033] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.

[0034] Figure 1 This is a schematic diagram of the structure of a heat treatment device for hardware parts according to this utility model. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the structure of a heat treatment device for hardware parts according to this utility model. Figure 2 ;

[0036] Figure 3 This is a schematic cross-sectional view of a heat treatment device for hardware parts according to the present invention. Figure 1 ;

[0037] Figure 4 This is a partial cross-sectional structural diagram of a heat treatment equipment for hardware parts according to the present invention;

[0038] Figure 5This is a schematic cross-sectional view of a heat treatment device for hardware parts according to the present invention. Figure 2 ;

[0039] Figure 6 for Figure 5 Enlarged structural diagram at point A;

[0040] The symbols for the main components are explained below:

[0041] Quenching tank 100, heat insulation plate 101, liquid outlet 102, settling tank 103, partition plate 104, support rod 105.

[0042] Rotating rod 200, adjusting rod 201, sealing plate 202, leakage pipe 203

[0043] Heat sink fins 300, fan assembly 301, protective cover 302

[0044] Connecting cylinder 400, connecting groove 401, liquid inlet groove 402, centrifugal pump 403, liquid inlet pipe 404, liquid outlet pipe 405, drain tap 406.

[0045] Place the mesh plate 500, handle 501, interceptor bar 502, and filter plate 503. Detailed Implementation

[0046] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0047] like Figures 1-6 As shown, a heat treatment device for hardware parts includes:

[0048] Quenching tank 100, with heat insulation plate 101 fixed in the middle of quenching tank 100, and two drain outlets 102 opened at the bottom of quenching tank 100, which are symmetrical about heat insulation plate 101.

[0049] A settling tank 103, with a partition 104 fixed in the middle of the settling tank 103;

[0050] Four support rods 105 are evenly distributed between the quenching tank 100 and the stationary tank 103 at their respective facing ends;

[0051] Cooling components are used to cool the medium;

[0052] A circulation component is used to redirect the cooled medium back into the quenching tank 100.

[0053] An adjustment assembly is provided between the heat insulation plate 101 and the partition plate 104;

[0054] The adjustment components include:

[0055] Rotating rod 200 is rotatably disposed inside the heat insulation plate 101 and the partition plate 104;

[0056] Adjusting rod 201 is fixedly connected to one end of rotating rod 200 that extends out of heat insulation plate 101;

[0057] The sealing disc 202 is fixedly connected to the outside of the rotating rod 200 and abuts against the end of the quenching tank 100 facing the stationary tank 103.

[0058] The drain pipe 203 is connected to the end of the sealing plate 202 facing the stationary tank 103, and the connection port of the drain pipe 203 is matched with the drain port 102.

[0059] Quenching tank 100 carries media such as water or oil, providing a cooling space for quenching hardware parts;

[0060] The heat insulation plate 101 divides the quenching tank 100 into two independent slots on the left and right, which can be used for quenching operations separately, avoiding the mixing of the media on both sides and affecting temperature control. It also prevents direct heat conduction between the media on both sides, keeping the temperature of the media on both sides independent, which is convenient for zoned control and circulation.

[0061] The drain outlet 102, as a discharge channel for high-temperature medium, is symmetrically distributed on both sides of the heat insulation plate 101 to ensure that the medium in each tank outlet can be discharged independently into the settling tank 103.

[0062] The settling tank 103 receives the high-temperature medium discharged from the quenching tank 100, and cools, filters and stores the medium through its internal structure, providing conditions for recycling.

[0063] The partition 104 is used to separate the space on the left and right sides of the settling tank 103, so that the media on both sides can be cooled independently, avoiding uneven temperature after mixing and affecting the cooling efficiency.

[0064] The support rod 105 supports the quenching tank 100 and fixes its relative position with the stationary tank 103 to ensure that the distance between them is stable, providing a structural basis for media flow and component connection.

[0065] The rotating rod 200, as the core transmission component of the adjustment assembly, transmits the rotational motion of the adjustment rod 201, driving the sealing disc 202 and the leakage pipe 203 to rotate, thereby switching the medium flow path.

[0066] The adjusting rod 201 controls the movement of the rotating rod 200 by rotating the adjusting rod 201, thereby realizing the "switching" of the medium flow and the switching of the flow direction;

[0067] The sealing disc 202 seals the leakage port 102 of the quenching tank 100 to prevent medium leakage; at the same time, it serves as the mounting carrier for the leakage pipe 203, adjusting the alignment between the leakage pipe 203 and the leakage port 102 as the rotating rod 200 rotates.

[0068] The drain pipe 203 serves as a channel for the flow of the medium, connecting to the drain port 102 of the quenching tank 100, and guiding the high-temperature medium from the quenching tank 100 into the settling tank 103.

[0069] The connection port of the leakage pipe 203 is located between the two leakage ports 102, and the distance between it and the rotating rod 200 is equal to the distance between any leakage port 102 and the rotating rod 200.

[0070] The cooling components include:

[0071] Several heat dissipation fins 300 are evenly distributed between the two sides of the partition plate 104 and the inner wall of the stationary groove 103.

[0072] Fan assembly 301 is installed on the outside of the stationary slot 103;

[0073] Two protective covers 302 are fixedly connected to the outside of the stationary slot 103, and the end of each heat dissipation fin 300 passing through the stationary slot 103 is located inside the protective cover 302. The end of the protective cover 302 near the fan assembly 301 is connected to an air inlet pipe, and the end of the protective cover 302 away from the fan assembly 301 is provided with an exhaust port.

[0074] The heat dissipation fins 300 significantly increase the contact area with the medium, accelerating heat absorption; by being densely distributed between the two sides of the partition plate 104 and the inner wall of the stationary groove 103, they efficiently absorb the heat in the medium and conduct it to the outside.

[0075] The fan assembly 301 forces and accelerates airflow to form an airflow circulation, drawing external cold air into the protective cover 302 through the air intake pipe, allowing the cold air to flow over the surface of the heat dissipation fins 300, carrying away heat before being discharged from the exhaust port, thus forming forced convection.

[0076] The protective cover 302 serves two purposes: firstly, it seals the exposed ends of the heat dissipation fins 300, forming an independent airflow channel to ensure directional airflow;

[0077] Secondly, it protects the heat dissipation fins 300 from damage caused by collisions with foreign objects.

[0078] Third, it guides airflow to concentrate through the heat dissipation fins 300, improving heat exchange efficiency;

[0079] The loop component includes:

[0080] The connecting cylinder 400 has a cavity inside the partition plate 104. The connecting cylinder 400 rotates inside the cavity. The connecting cylinder 400 is fixedly connected to one end of the rotating rod that extends into the cavity. The inner wall of the cavity has symmetrically opened communication grooves 401 that communicate with the settling groove 103. The outer side of the connecting cylinder 400 has an inlet groove 402 that matches the communication groove 401.

[0081] Centrifugal pump 403 is placed on the ground. A liquid inlet pipe 404 is provided between the suction end of centrifugal pump 403 and the connecting cylinder 400, and a liquid outlet pipe 405 is provided between the discharge end of centrifugal pump 403 and the adjusting rod 201.

[0082] Drain tap 406 is rotatably and sealingly connected to outlet pipe 405.

[0083] The connecting cylinder 400 serves as a rotary connection hub between the settling tank 103 and the centrifugal pump 403. Through linkage with the rotating rod 200, it enables selective extraction of media from the left and right sides of the settling tank 103.

[0084] The outer liquid inlet 402 can be aligned with the connecting groove 401 on the left or right side of the stationary tank 103 during rotation, thereby opening the medium flow path on the corresponding side; for example, when the liquid inlet 402 is aligned with the connecting groove 401 on the left side, the centrifugal pump 403 can draw the cooling medium on the left side of the stationary tank 103.

[0085] The liquid inlet tank 402 is located between the two connecting tanks 401 and is positioned opposite to the liquid outlet pipe 203.

[0086] There is a small gap between the connecting cylinder 400 and the inner wall of the cavity, which will not affect the mixing of the new and old media in the two sides of the stationary tank 103 when the connecting cylinder 400 rotates.

[0087] Centrifugal pump 403 provides a power source to extract the cooled medium from the settling tank 103 and pressurize it to be transported into the quenching tank 100.

[0088] The inlet pipe 404 connects the suction end of the centrifugal pump 403 to the connecting cylinder 400, forming a flow channel for the medium from the settling tank 103 to the centrifugal pump 403.

[0089] The outlet pipe delivers the medium pressurized by the centrifugal pump 403 to the drain tap 406, and the direction of discharge is controlled by rotating the drain tap 406;

[0090] The drain faucet 406 serves as the outlet for the medium to flow back to the quenching tank 100. It can be rotated to adjust the drain direction and, together with the adjustment component, achieves a "single-sided discharge-single-sided return" circulation mode.

[0091] The groove inside the quenching tank 100 is set as a semi-cylindrical shape. The heat insulation plates 101 are hinged to the opposite ends of each other with a placement mesh plate 500. The two placement mesh plates 500 are provided with handles 501 on the opposite sides.

[0092] The opening of the quenching tank 100 is set as a semi-cylindrical shape, which can reduce the dead angle of medium flow and make the temperature distribution more uniform; at the same time, it provides an arc track for placing the mesh plate 500, which facilitates its rotation around the hinge point.

[0093] A 500mm mesh plate is placed to support the metal parts for quenching. The mesh structure allows for free flow of the medium, ensuring uniform cooling of the workpiece. The hinge allows for flipping, facilitating the loading and unloading of the workpiece.

[0094] The handle 501 provides an operating point of force, making it easy for workers to use tools such as hooks to hook the handle 501 and achieve the rotation and lifting of the placed mesh plate 500.

[0095] The quenching tank 100 is symmetrically equipped with intercepting rods 502 inside, and the intercepting rods 502 are higher than the leakage port 102.

[0096] The interceptor bar 502 can prevent hardware parts from accidentally falling into the drain outlet 102 during quenching or retrieval, thus avoiding blockage of the drain outlet 102 or damage to the workpiece; at the same time, it serves as an auxiliary limiting structure to ensure the stability of the placed mesh plate in the tank.

[0097] The filter plates 503 are symmetrically placed inside the static tank 103, and the two filter plates 503 respectively abut against each of the heat dissipation fins 300 on the uppermost side.

[0098] Filter plate 503 physically intercepts impurities in the medium, such as oxide scale and metal shavings, to prevent them from entering the circulation system and causing pipe blockage or damage to centrifugal pump 403.

[0099] The filter plate 503 is made of high-temperature resistant porous material such as stainless steel filter screen or ceramic filter plate, and is placed vertically in the settling tank 103. When the medium flows from one side of the filter plate 503 to the other side, impurities are intercepted on the surface. Regular cleaning or replacement of the filter plate can maintain the filtration efficiency.

[0100] Initially:

[0101] The quenching tank 100 is filled with medium on either side, such as the left side, and the opposite side of the settling tank 103, such as the right side.

[0102] High-temperature medium directional discharge:

[0103] The operator rotates the adjusting rod 201, which drives the rotating rod 200 to rotate. The rotating rod 200 drives the sealing plate 202 and the leakage pipe 203 to rotate synchronously. When the adjusting rod 201 rotates 90 degrees to the left, the connecting port of the leakage pipe 203 is aligned and connected with the leakage port 102 on the left side of the quenching tank 100. In this way, the high-temperature medium on the left side flows into the interior of the left side of the settling tank 103 through the leakage port 102 and the leakage pipe 203, thereby realizing the directional discharge of the medium.

[0104] The heat insulation plate 101 and the partition plate 104 ensure that the left and right sides of the quenching tank 100 and the settling tank 103 are independent, thus avoiding the mixing of uncooled medium and high-temperature medium.

[0105] Filtration and cooling of high-temperature media:

[0106] The high-temperature medium flowing into the settling tank 103 first passes through the filter plate 503 to intercept impurities such as oxide scale and metal shavings, preventing them from entering the circulation system;

[0107] The fan assembly 301 drives air through the air duct inside the protective cover 302, forcibly removing heat from the surface of the heat sink 300 and accelerating the cooling of the medium.

[0108] Cooling medium recirculation:

[0109] As the rotating rod 200 rotates 90 degrees to the left, the connecting cylinder 400 will also rotate synchronously. At this time, the liquid inlet tank 402 will connect with the connecting tank 401 on the right side of the settling tank 103.

[0110] Then start the centrifugal pump 403 and draw the cooled medium on the right side of the settling tank 103 through the inlet pipe 404. Pump it to the right side of the quenching tank 100 through the outlet pipe 405 and the drain faucet 406. This can prevent the mixing of the old and new media, which would affect the quenching efficiency of the hardware.

[0111] Repeat the above operation to achieve an alternating cycle between the left and right sides, thereby improving production efficiency.

[0112] In this embodiment, the operator rotates the adjusting rod 201 to rotate the rotating rod 200, the sealing plate 202, and the drain pipe 203, aligning the connecting port of the drain pipe 203 with the drain port 102 on the left side of the quenching tank 100. This directs the high-temperature medium from the left side into the left side of the settling tank 103. After impurities are intercepted by the filter plate 503, the fan assembly 301 drives air through the protective cover 302 duct to carry away the heat from the heat dissipation fins 300, thus cooling the medium. Simultaneously, the connecting cylinder 400 rotates to connect the liquid inlet tank 402 with the connecting groove 401 on the right side of the settling tank 103. The centrifugal pump 403 is then started to pump the cooling medium from the right side to the right side of the quenching tank 100, preventing the mixing of new and old media from affecting the quenching efficiency. This alternating operation on both sides improves production efficiency.

[0113] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A hardware heat treatment apparatus, characterized by comprising: include: A quenching tank (100) is provided, with a heat insulation plate (101) fixed in the middle of the quenching tank (100). Two drain outlets (102) are provided at the bottom of the quenching tank (100) and are symmetrical about the heat insulation plate (101). A settling tank (103) is provided with a partition (104) fixed in the middle of the settling tank (103); Four support rods (105) are evenly distributed between the quenching tank (100) and the stationary tank (103) facing each other. Cooling components are used to cool the medium. A circulation component is used to redirect the cooled medium back into the quenching tank (100); An adjustment assembly is provided between the heat insulation plate (101) and the partition plate (104); The adjustment component includes: Rotating rod (200), the rotating rod (200) is rotatably disposed inside the heat insulation plate (101) and the partition plate (104); An adjusting rod (201) is fixedly connected to one end of the rotating rod (200) that extends out of the heat insulation plate (101); A sealing disc (202) is fixedly connected to the outside of the rotating rod (200) and abuts against the end of the quenching tank (100) facing the stationary tank (103); The drain pipe (203) is connected to the end of the sealing plate (202) facing the stationary tank (103), and the connection port of the drain pipe (203) is matched with the drain port (102).

2. The apparatus for heat treating hardware according to claim 1, wherein: The cooling assembly includes: A plurality of heat dissipation fins (300) are evenly disposed on both sides of the partition (104) and between the inner wall of the stationary groove (103); A fan assembly (301) is mounted on the outside of the stationary slot (103); Two protective covers (302) are fixedly connected to the outside of the stationary slot (103), and the end of each heat dissipation fin (300) passing through the stationary slot (103) is located inside the protective cover (302). The end of the protective cover (302) near the fan assembly (301) is connected to an air inlet pipe, and the end of the protective cover (302) away from the fan assembly (301) is provided with an exhaust port.

3. The apparatus for heat treating hardware according to claim 1, wherein: The loop component includes: The connecting cylinder (400) has a cavity inside the partition (104), and the connecting cylinder (400) rotates inside the cavity. The connecting cylinder (400) is fixedly connected to one end of the rotating rod that extends into the cavity. The inner wall of the cavity has symmetrically opened communication grooves (401) that communicate with the stationary groove (103). The outer side of the connecting cylinder (400) has a liquid inlet groove (402) that matches the communication groove (401). A centrifugal pump (403) is placed on the ground, an inlet pipe (404) is arranged between the suction end of the centrifugal pump (403) and the connecting cylinder (400), and an outlet pipe (405) is arranged between the discharge end of the centrifugal pump (403) and the adjusting rod (201); A liquid discharge faucet (406) is rotatably and sealingly connected with the outlet pipe (405).

4. The apparatus for heat treating hardware according to claim 1, wherein: The notch inside the quenching tank (100) is in a semicylindrical shape, the heat insulation plates (101) are both hinged with a placing mesh plate (500) at one end opposite to each other, and the two placing mesh plates (500) are both provided with a handle (501) on the side away from each other.

5. The apparatus for heat treating hardware according to claim 1, wherein: The quenching tank (100) is symmetrically provided with an intercepting rod (502) higher than the liquid leakage opening (102).

6. The apparatus for heat treating hardware according to claim 2, wherein: The stationary tank (103) is symmetrically provided with a filter plate (503) abutting against each heat dissipation fin (300) on the uppermost side.

Images