Metal parts heat treatment equipment

Abstract

The present invention provides a metal parts heat treatment device, which includes a quenching tank, a residue conveying component, and a stirring and residue concentration component. The quenching tank contains quenching liquid; the residue conveying component includes a mounting frame, a conveyor belt, a plurality of filter plates, a first drive component, and a brush roller. The conveyor belt is tilted in the quenching tank, with the lower end immersed in the quenching liquid and the upper end protruding from the quenching tank; the plurality of filter plates are arranged at intervals along the moving direction of the conveyor belt and connected to the conveyor belt, and the filter plates located on the lower side of the conveyor belt are arranged horizontally or with the outer ends tilted upward; the brush roller is used to brush the surface of the conveyor belt. The stirring and residue concentration component includes a first filter screen, a piston, a second drive component, and a water inlet redirection component. The metal parts heat treatment device provided by the present invention stirs the quenching liquid in real time to make the temperature distribution of the quenching liquid more uniform, and discharges the residue from the quenching tank in real time to ensure the quenching quality of the parts.

Description

Technical Field

[0001] The invention belongs to the technical field of metal heat treatment, and in particular relates to a metal part heat treatment device. Background Art

[0002] In industrial production, many metal workpieces are heat treated to achieve process performance requirements. Quenching is a commonly used heat treatment method. Quenching usually involves heating the metal workpiece to a certain appropriate temperature and maintaining it for a period of time, and then immersing it in a quenching medium to quickly cool it down.

[0003] When the workpiece is immersed in the quenching liquid for quenching, as the immersion time increases, the temperature of the quenching liquid around the workpiece rises, and the temperature is higher than the temperature of the quenching liquid away from the workpiece, which makes the temperature distribution of the quenching liquid uneven, affecting the quenching efficiency and quenching quality. At the same time, during quenching, it is easy to produce residues such as oxide scale. When the quenching operation is performed again, the residue in the quenching oil is easy to be adsorbed on the parts to be processed, causing the surface of the parts to be uneven. Summary of the invention

[0004] The present invention provides a metal part heat treatment device, aiming to solve the technical problems raised in the above background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a metal part heat treatment device, comprising:

[0006] A quenching tank, which contains quenching liquid;

[0007] A residue conveying assembly, comprising a mounting frame, a conveyor belt, a plurality of filter plates, a first driving assembly and a brush roller, wherein the mounting frame is connected to the quenching tank; the conveyor belt is arranged obliquely in the quenching tank, with the lower end immersed in the quenching liquid and the upper end protruding out of the quenching tank; the first driving assembly is connected to the mounting frame, and is used to drive the conveyor belt to move; the plurality of filter plates are arranged at intervals along the moving direction of the conveyor belt, and are connected to the conveyor belt, and the filter plates located on the lower side of the conveyor belt are arranged horizontally or with the outer ends inclined upward; the brush roller is arranged on the upper side of the conveyor belt, and is used to brush the surface of the conveyor belt; and

[0008] A stirring and residue concentration component comprises a first filter, a piston, a second drive component and a water inlet direction changing component, wherein the first filter is arranged at the lower part of the quenching tank and is inclined to one side of the residue conveying component and is connected to the quenching tank; the water inlet direction changing component is arranged at the lower side of the first filter and is connected to the quenching tank, and the quenching liquid on the upper side of the first filter enters the lower side of the first filter through the water inlet direction changing component; the piston is arranged at the lower side of the water inlet direction changing component and is sealed with the quenching tank; the power output end of the second drive component is connected to the water inlet direction changing component and the piston, so as to drive the water inlet direction changing component to switch the water inlet direction between vertical and horizontal states and then drive the piston to move;

[0009] Among them, the second driving component first drives the water inlet changing component to move so that the water inlet is in a vertical state, and then drives the piston to move downward, so that the quenching liquid on the upper side of the first filter screen is sucked into the lower side of the first filter screen, and the residue is actively adsorbed on the first filter screen; then, the second driving component drives the water inlet changing component to move so that the water inlet is in a horizontal state, toward the residue conveying component, and then drives the piston to move upward, so that the quenching liquid on the lower side of the first filter screen moves along the water inlet toward one side of the residue conveying component, and the residue attached to the first filter screen is flushed to one side of the residue conveying component, and this reciprocating process is performed to complete the aggregation of the residue and the stirring of the quenching liquid.

[0010] In a possible implementation of the metal part heat treatment device provided by the present invention, the water inlet redirection component includes:

[0011] A plurality of blades are arranged at intervals along the first filter screen from a side away from the residue conveying assembly to a side where the residue conveying assembly is located, and upper ends of the blades are rotatably connected to the quenching tank; and

[0012] A connecting plate is arranged on the lower side of the blades and is rotationally connected to the plurality of blades. The connecting plate is connected to the power output end of the second driving assembly.

[0013] In a possible implementation of the metal part heat treatment device provided by the present invention, the second driving component includes:

[0014] A plurality of guide rods are vertically and spaced apart at the bottom of the quenching tank, and the piston is slidably matched with the guide rods;

[0015] A first hydraulic cylinder is vertically arranged at the lower side of the quenching tank, a piston rod of the first hydraulic cylinder passes through the bottom of the quenching tank and is connected to the piston, and is in sliding sealing cooperation with the quenching tank; and

[0016] The second hydraulic cylinder has one end rotatably connected to the quenching tank and the other end rotatably connected to the connecting plate.

[0017] In a possible implementation of the metal part heat treatment device provided by the present invention, the stirring and residue concentration component further includes:

[0018] A second filter screen is horizontally arranged within the vertical projection range of the conveyor belt, is spliced ​​with the edge of the first filter screen, and is connected to the quenching tank; and

[0019] A plurality of baffles are arranged along the extension direction of the second filter screen. Both ends of the baffles are rotatably connected to the quenching tank and have the freedom to rotate upward and reset. When the plurality of baffles are horizontal, the second filter screen is covered.

[0020] In a possible implementation of the metal part heat treatment device provided by the present invention, the first driving component includes:

[0021] An upper driving roller, arranged at the upper end of the conveyor belt and connected to the mounting frame;

[0022] A lower driving roller, disposed at the lower end of the conveyor belt and connected to the mounting frame; and

[0023] The driving mechanism is connected to the mounting frame, and the power output end is connected to the upper driving roller, so as to drive the upper driving roller to rotate; the conveyor belt is sleeved on the upper driving roller and the lower driving roller.

[0024] In a possible implementation of the metal parts heat treatment device provided by the present invention, the residue conveying assembly also includes a support box, which is arranged between the upper drive roller and the lower drive roller and on the inner side of the conveyor belt, and is connected to the mounting frame, and the conveyor belt is in contact with the support box.

[0025] In a possible implementation of the metal parts heat treatment device provided by the present invention, a plurality of mounting ears are provided on the filter plate, the mounting ears are rotatably connected to the conveyor belt, and the end surface of the mounting ears facing the support box abuts against the support box to limit the rotation of the filter plate; a plurality of annular grooves are provided on the upper driving roller, and the annular grooves correspond one-to-one to the mounting ears to avoid the mounting ears.

[0026] In a possible implementation of the metal part heat treatment device provided by the present invention, the conveyor belt is provided with dense filter holes for filtering residues; a first partition is provided in the support box, the first partition is connected to the upper and lower ends of the support box and the two sides parallel to the axis of the upper driving roller, and the interior of the support box is divided into a first cavity and a second cavity, and the first cavity is arranged on the lower side of the second cavity; a liquid through hole is opened on the first partition, and a first baffle is provided on one side of the second cavity of the liquid through hole, and the upper end of the first baffle is connected to the first partition, so that the quenching liquid flows from the first cavity to the second cavity in a one-way manner;

[0027] A plurality of liquid inlet holes are provided on the side wall of the first cavity that is in contact with the conveyor belt, and a second baffle is provided inside each of the liquid inlet holes, and the upper end of the second baffle is connected to the support box, so that the quenching liquid flows from the quenching tank to the first cavity in a one-way manner;

[0028] A second partition is provided in the second cavity, a drainage cavity is formed on the side of the second partition facing away from the first cavity, the bottom of the drainage cavity is connected with the second cavity, and a plurality of drainage holes are opened on the side wall of the drainage cavity that is in contact with the conveyor belt;

[0029] The residue conveying assembly further includes a pumping mechanism, which is connected to the first cavity and the second cavity and is used for extracting gas in the first cavity and flushing gas into the second cavity.

[0030] In a possible implementation of the metal part heat treatment device provided by the present invention, the upper driving roller is a cylindrical structure, and a plurality of connecting ports are opened along the axis direction of the upper driving roller, and the top of the support box is in sliding and sealing cooperation with the upper driving roller; a plurality of first air vents and a plurality of third air vents are opened on the top of the first cavity, and a plurality of the first air vents are arranged along the axis direction of the upper driving roller, and a plurality of the third air vents are arranged along the axis direction of the upper driving roller, and the first air vents and the third air vents are arranged at intervals along the circumference of the upper driving roller shaft, and the interval is greater than the length of the connecting port in the circumferential direction of the upper driving roller shaft; a plurality of second air vents are opened on the top of the second cavity along the axis direction of the upper driving roller;

[0031] The exhaust mechanism includes an air cylinder, which is sleeved in the upper driving roller and rotates in a sealed manner with the upper driving roller, and one end of the air cylinder is connected to the mounting frame; a normal pressure chamber, a negative pressure chamber and a high pressure chamber are arranged around the axis in the air cylinder, the normal pressure chamber is connected to the outside atmosphere, the negative pressure chamber is connected to a negative pressure source, the high pressure chamber is connected to a high pressure source, and the normal pressure chamber is provided with a plurality of normal pressure ports along the axis, the negative pressure chamber is provided with a plurality of negative pressure ports along the axis, and the high pressure chamber is provided with a plurality of high pressure ports along the axis; the normal pressure port is suitable for being connected with the third vent through the connecting port, the negative pressure port is suitable for being connected with the first vent through the connecting port, and the high pressure port is suitable for being connected with the second vent through the connecting port.

[0032] In a possible implementation of the metal part heat treatment device provided by the present invention, the upper driving roller includes:

[0033] The cylinder has one end that is closed and the other end that is open, and the gas cylinder is arranged in the cylinder and cooperates with the cylinder to rotate and seal;

[0034] A rotating shaft is arranged outside the closed end of the cylinder, connected to the cylinder, and rotatably cooperates with the mounting frame; the power output end of the driving mechanism is drivingly connected to the rotating shaft to drive the upper driving roller to rotate; and

[0035] An annular cover plate is arranged at one end of the cylinder body which is open and covers the outside of the cylinder, and is connected to the cylinder body; a connecting rod is arranged at the end of the cylinder, and the connecting rod extends out of the annular cover plate and is connected to the mounting frame.

[0036] The beneficial effect of the metal part heat treatment device provided by the present invention is as follows: compared with the prior art, in the metal part heat treatment device provided by the present invention, during operation, the second driving component first drives the water inlet direction changing component to move, so that the water inlet is in a vertical state, and then drives the piston to move downward, so that the quenching liquid on the upper side of the first filter screen is sucked into the lower side of the first filter screen, and actively adsorbs the residue on the first filter screen, so that the residue in the quenching liquid is quickly settled; then, the second driving component drives the water inlet direction changing component to move, so that the water inlet is in a horizontal state, toward the residue conveying component, and then drives the piston to move upward, so that the quenching liquid on the lower side of the first filter screen moves along the water inlet toward one side of the residue conveying component, and the residue attached to the first filter screen is flushed toward one side of the residue conveying component, and the quenching liquid is stirred in real time, so that the temperature distribution of the quenching liquid is more uniform; at the same time, the residue is gathered on one side of the residue conveying component, and then is picked up by the filter plate on the rotating conveyor belt and carried upward out of the quenching tank, and then is swept down by the brush roller, and the residue is discharged from the quenching tank in real time, so as to ensure the quenching quality of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1A schematic diagram of the three-dimensional structure of the metal part heat treatment device provided by an embodiment of the present invention after removing the front side plate;

[0038] Figure 2 A schematic diagram of the main structure of the metal parts heat treatment device provided by an embodiment of the present invention when the nozzle is horizontal;

[0039] Figure 3 A schematic diagram of the main structure of the metal part heat treatment device provided by an embodiment of the present invention when the nozzle is vertical;

[0040] Figure 4 A schematic diagram of the three-dimensional structure of a residue conveying assembly removing a mounting frame and a brush roller of a metal part heat treatment device provided in an embodiment of the present invention;

[0041] Figure 5 for Figure 4 A magnified view of part A in FIG.

[0042] Figure 6 A schematic diagram of the front view of the structure of the metal parts heat treatment device provided in an embodiment of the present invention, wherein the slag conveying assembly without the mounting frame and the brush roller is removed;

[0043] Figure 7 For along Figure 6 The cross-sectional structure diagram of the middle BB line;

[0044] Figure 8 For along Figure 7 Cross-sectional structural diagram of the center CC line;

[0045] Fig. 9 for Figure 8 The enlarged view of the D part in FIG.

[0046] Fig.10 for Figure 8 The enlarged view of part E in FIG.

[0047] Description of reference numerals:

[0048] 10. Quenching tank; 21. Mounting frame; 22. Conveyor belt; 23. Filter plate;

[0049] 231, mounting ear; 24, brush roller; 25, upper driving roller; 251, communication port;

[0050] 252, annular groove; 26, lower driving roller; 27, driving mechanism; 28, supporting box;

[0051] 281, first partition plate; 2811, liquid port; 2812, first baffle; 282, first cavity;

[0052] 2821, first vent; 2822, third vent; 2823, liquid inlet; 2824, second baffle;

[0053] 283, second cavity; 2831, second vent; 2832, drainage cavity; 2833, drainage hole;

[0054] 29, gas cylinder; 291, normal pressure chamber; 2911, normal pressure port; 292, negative pressure chamber;

[0055] 2921, negative pressure port; 293, high pressure chamber; 2931, high pressure port;

[0056] 31. first filter screen; 32. second filter screen; 33. piston; 341. blade;

[0057] 342, connecting plate; 351, guide rod; 352, first hydraulic cylinder; 353, second hydraulic cylinder;

[0058] 36. Baffle. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0061] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0063] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0064] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0065] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0066] Please also read Figures 1 to 10, the metal parts heat treatment device provided by the present invention is now described. The metal parts heat treatment device comprises a quenching tank 10, a residue conveying component and a stirring and residue concentration component. The quenching liquid is contained in the quenching tank 10; the residue conveying component comprises a mounting frame 21, a conveyor belt 22, a plurality of filter plates 23, a first driving component and a brush roller 24. The mounting frame 21 is connected to the quenching tank 10; the conveyor belt 22 is tiltedly arranged in the quenching tank 10, with the lower end immersed in the quenching liquid and the upper end protruding from the quenching tank 10; the first driving component is connected to the mounting frame 21, and is used to drive the conveyor belt 22 to move; a plurality of filter plates 23 are arranged at intervals along the moving direction of the conveyor belt 22, and are connected to the conveyor belt 22. The filter plates 23 located on the lower side of the conveyor belt 22 are arranged horizontally or with the outer ends tilted upward; the brush roller 24 is arranged on the upper side of the conveyor belt 22, and is used to brush the surface of the conveyor belt 22.

[0067] The stirring and residue concentration component includes a first filter screen 31, a piston 33, a second drive component and a water inlet changing component. The first filter screen 31 is arranged at the lower part of the quenching tank 10 and is inclined toward the side of the residue conveying component, and is connected to the quenching tank 10; the water inlet changing component is arranged at the lower side of the first filter screen 31, and is connected to the quenching tank 10. The quenching liquid on the upper side of the first filter screen 31 enters the lower side of the first filter screen 31 through the water inlet changing component; the piston 33 is arranged at the lower side of the water inlet changing component, and is sealed with the quenching tank 10; the power output end of the second drive component is connected to the water inlet changing component and the piston 33, and is used to drive the water inlet changing component to switch the water inlet direction between vertical and horizontal states and then drive the piston 33 to move.

[0068] Among them, the second driving component first drives the water inlet changing component to move, so that the water inlet is in a vertical state, and then drives the piston 33 to move downward, so that the quenching liquid on the upper side of the first filter screen 31 is sucked into the lower side of the first filter screen 31, and the residue is actively adsorbed on the first filter screen 31; then, the second driving component drives the water inlet changing component to move, so that the water inlet is in a horizontal state, toward the residue conveying component, and then drives the piston 33 to move upward, so that the quenching liquid on the lower side of the first filter screen 31 moves along the water inlet toward the side of the residue conveying component, and the residue attached to the first filter screen 31 is flushed to the side of the residue conveying component, and this reciprocating process is performed to complete the aggregation of the residue and the stirring of the quenching liquid.

[0069] It should be noted that the brush roller 24 is an existing component and is driven by a driving unit alone; the conveyor belt in the figure rotates clockwise.

[0070] The beneficial effect of the heat treatment device for metal parts provided by the present invention is as follows: compared with the prior art, the heat treatment device for metal parts provided by the present invention, during operation, first drives the water inlet redirection component to move through the second drive component to make the water inlet in a vertical state, and then drives the piston 33 to move downward, so that the quenching liquid on the upper side of the first filter screen 31 is sucked into the lower side of the first filter screen 31, and actively adsorbs the residue on the first filter screen 31, so that the residue in the quenching liquid is quickly settled, and then with a cooling device with sufficient power, the quenching interval between the two parts can be effectively shortened, and the quenching cycle can be improved; then, the second drive component drives The dynamic water inlet redirecting assembly moves to make the water inlet horizontal, toward the residue conveying assembly, and then drives the piston 33 to move upward, so that the quenching liquid on the lower side of the first filter 31 moves along the water inlet toward the side of the residue conveying assembly, and the residue attached to the first filter 31 is flushed toward the side of the residue conveying assembly, and the quenching liquid is stirred in real time to make the temperature distribution of the quenching liquid more uniform; at the same time, the residue is gathered on the side of the residue conveying assembly, and then is picked up by the filter plate 23 on the rotating conveyor belt 22 and carried upward out of the quenching tank 10, and then is brushed down by the brush roller 24, and the residue is discharged from the quenching tank 10 in real time to ensure the quenching quality of the parts.

[0071] like Figure 2 and Figure 3 As shown, in a specific implementation of the metal parts heat treatment device provided in an embodiment of the present invention, the water inlet redirecting assembly includes a plurality of blades 341 and a connecting plate 342, and the plurality of blades 341 are arranged at intervals along the first filter screen 31 from the side away from the residue conveying assembly to the side where the residue conveying assembly is located, and the upper end of the blade 341 is rotatably connected to the quenching tank 10; the connecting plate 342 is arranged on the lower side of the blade 341, and is rotatably connected to the plurality of blades 341, and the connecting plate 342 is connected to the power output end of the second drive assembly.

[0072] Specifically, Figure 2 and Figure 3 As shown, in a specific implementation of the metal part heat treatment device provided by an embodiment of the present invention, the second driving assembly includes a plurality of guide rods 351, a first hydraulic cylinder 352 and a second hydraulic cylinder 353. The plurality of guide rods 351 are vertically and spaced apart at the bottom of the quenching tank 10, and the piston 33 is slidably matched with the guide rods 351; the first hydraulic cylinder 352 is vertically arranged at the lower side of the quenching tank 10, and the piston 33 rod of the first hydraulic cylinder 352 passes through the bottom of the quenching tank 10 and is connected to the piston 33, and is slidably and sealedly matched with the quenching tank 10; one end of the second hydraulic cylinder 353 is rotatably connected to the quenching tank 10, and the other end is rotatably connected to the connecting plate 342.

[0073] It should be noted that the first hydraulic cylinder 352 and the second hydraulic cylinder 353 may also be replaced by a mechanism capable of outputting displacement, such as a pneumatic cylinder or an electric push rod.

[0074] Furthermore, Figure 1and Figure 2 As shown, in a specific implementation of the metal parts heat treatment device provided in an embodiment of the present invention, the stirring and residue concentration component also includes a second filter screen 32 and a plurality of baffles 36. The second filter screen 32 is horizontally arranged within the vertical projection range of the conveyor belt 22, is spliced ​​with the edge of the first filter screen 31, and is connected to the quenching tank 10; the plurality of baffles 36 are arranged along the extension direction of the second filter screen 32, and the two ends of the baffles 36 are rotatably connected to the quenching tank 10, and have the freedom to rotate upward and reset. When the plurality of baffles 36 are horizontal, the second filter screen 32 is covered.

[0075] During operation, the second hydraulic cylinder 353 drives the connecting plate 342 to move, so that the blade 341 is in a vertical state, and then the first hydraulic cylinder 352 drives the piston 33 to move downward, so that the quenching liquid on the upper side of the first filter screen 31 is drawn into the lower side of the first filter screen 31, and the residue is adsorbed onto the first filter screen 31; then, the second hydraulic cylinder 353 drives the connecting plate 342 to move, so that the blade 341 is in a horizontal state, and the first hydraulic cylinder 352 drives the piston 33 to move upward, so that the quenching liquid on the lower side of the first filter screen 31 is discharged to one side of the residue conveying component, and the residue on the first filter screen 31 is pushed to one side of the residue conveying component, so that the residue is gathered on the upper side of the second filter screen 32.

[0076] When the piston 33 moves downward and draws the quenching liquid on the upper side of the first filter screen 31 into the lower side of the first filter screen 31, the baffle 36 is subjected to a downward force, and the baffle 36 is horizontally covered on the upper side of the second filter screen 32 to prevent the residue on the upper side of the second filter screen 32 from being sucked downward; when the piston 33 moves upward, the quenching liquid on the lower side of the second filter screen 32 flows upward, pushes up the baffle 36, and then pushes up the residue gathered on the upper side of the second filter screen 32, so that it can be picked up by the filter plate 23 on the conveyor belt 22, thereby improving the slag removal efficiency.

[0077] like Figure 4 As shown, in a specific implementation manner of the metal part heat treatment device provided in an embodiment of the present invention, the first driving component includes an upper driving roller 25, a lower driving roller 26 and a driving mechanism 27, the upper driving roller 25 is arranged at the upper end of the conveyor belt 22, and is connected to the mounting frame 21; the lower driving roller 26 is arranged at the lower end of the conveyor belt 22, and is connected to the mounting frame 21; the driving mechanism 27 is connected to the mounting frame 21, and the power output end is connected to the upper driving roller 25, so as to drive the upper driving roller 25 to rotate; the conveyor belt 22 is sleeved on the upper driving roller 25 and the lower driving roller 26.

[0078] It should be noted that the driving mechanism 27 is a motor assembly, or a motor assembly and a matching chain and sprocket.

[0079] like Figure 4As shown, in a specific implementation of the metal parts heat treatment device provided in an embodiment of the present invention, the residue conveying assembly also includes a support box 28, which is arranged between the upper drive roller 25 and the lower drive roller 26 and on the inner side of the conveyor belt 22, and is connected to the mounting frame 21, and the conveyor belt 22 is in contact with the support box 28.

[0080] like Figure 4 and Figure 5 As shown, in a specific implementation of the metal parts heat treatment device provided in an embodiment of the present invention, a plurality of mounting ears 231 are provided on the filter plate 23, the mounting ears 231 are rotatably connected to the conveyor belt 22, and the end surface of the mounting ears 231 facing the support box 28 abuts against the support box 28 to limit the rotation of the filter plate 23; a plurality of annular grooves 252 are provided on the upper driving roller 25, and the annular grooves 252 correspond to the mounting ears 231 one by one to avoid the mounting ears 231.

[0081] It should be noted that, in the process of the filter plate 23 moving along the surface of the support box 28, the end of the mounting ear 231 abuts against the surface of the support box 28, the filter plate 23 cannot rotate, and the filter plate 23 on the lower side of the conveyor belt 22 remains horizontal or tilted upward to facilitate the collection of residues; when the filter plate 23 moves upward to the liquid level and moves to the upper drive roller 25, the mounting ear 231 enters the annular groove 252 of the upper drive roller 25, so that the filter plate 23 has the freedom to rotate downward, and rotates downward under the action of its own weight or the brush roller 24, so that the brush roller 24 can brush off the residue on the filter plate 23.

[0082] like Figure 8 and Fig.10 As shown, in a specific implementation manner of the metal parts heat treatment device provided in an embodiment of the present invention, dense filter holes are provided on the conveyor belt 22 to filter residues; a first partition plate 281 is provided in the support box 28, and the first partition plate 281 is connected to the upper and lower ends of the support box 28 and the two sides parallel to the axis of the upper driving roller 25, so as to divide the interior of the support box 28 into a first cavity 282 and a second cavity 283, and the first cavity 282 is arranged at the lower side of the second cavity 283; a liquid port 2811 is opened on the first partition plate 281, and a first baffle 2812 is provided on one side of the second cavity 283 of the liquid port 2811, and the upper end of the first baffle plate 2812 is connected to the first partition plate 281, so that the quenching liquid can flow from the first cavity 282 to the second cavity 283 in one direction.

[0083] A plurality of liquid inlet holes 2823 are provided on the side wall of the first cavity 282 which is in contact with the conveyor belt 22 . A second baffle 2824 is provided inside each liquid inlet hole 2823 . The upper end of the second baffle 2824 is connected to the support box 28 , so that the quenching liquid can flow from the quenching tank 10 to the first cavity 282 in a one-way manner.

[0084] A second partition is provided in the second cavity 283, and a drainage cavity 2832 is formed on the side of the second partition facing away from the first cavity 282. The bottom of the drainage cavity 2832 is connected to the second cavity 283. A plurality of drainage holes 2833 are provided on the side wall of the drainage cavity 2832 which is in contact with the conveyor belt 22, and the drainage holes 2833 are all arranged above the liquid surface of the quenching liquid.

[0085] The residue conveying assembly further includes a pumping mechanism, which is connected to the first cavity 282 and the second cavity 283 and is used for extracting gas from the first cavity 282 and injecting gas into the second cavity 283 .

[0086] The lower end of the second partition is spaced apart from the bottom of the second cavity 283 , and the upper end of the second partition and both sides parallel to the axis of the upper driving roller 25 are connected to the inner wall of the second cavity 283 .

[0087] It should be noted that the first blocking piece 2812 is a sheet or plate structure, and the second blocking piece 2824 is a sheet or film structure.

[0088] Further, such as Figure 8 and Fig. 9 As shown, in a specific implementation manner of the metal part heat treatment device provided in an embodiment of the present invention, the upper driving roller 25 is a cylindrical structure, and a plurality of connecting ports 251 are opened along the axial direction of the upper driving roller 25, and the top of the support box 28 is slidingly sealed with the upper driving roller 25; a plurality of first air vents 2821 and a plurality of third air vents 2822 are opened on the top of the first cavity 282, and the plurality of first air vents 2821 are arranged along the axial direction of the upper driving roller 25, and the plurality of third air vents 2822 are arranged along the axial direction of the upper driving roller 25, and the first air vents 2821 and the third air vents 2822 are arranged at intervals along the circumferential direction of the axis of the upper driving roller 25, and the spacing is greater than the length of the connecting port 251 in the circumferential direction of the axis of the upper driving roller 25; a plurality of second air vents 2831 are opened on the top of the second cavity 283 along the axial direction of the upper driving roller 25.

[0089] Specifically, the exhaust mechanism includes an air cylinder 29, which is sleeved in the upper driving roller 25 and rotates and seals with the upper driving roller 25, and one end of the air cylinder 29 is connected to the mounting frame 21; a normal pressure chamber 291, a negative pressure chamber 292 and a high pressure chamber 293 are arranged around the axis in the air cylinder 29, the normal pressure chamber 291 is connected to the outside atmosphere, the negative pressure chamber 292 is connected to the negative pressure source, and the high pressure chamber 293 is connected to the high pressure source, and the normal pressure chamber 291 is provided with a plurality of normal pressure ports 2911 along the axis, the negative pressure chamber 292 is provided with a plurality of negative pressure ports 2921 along the axis, and the high pressure chamber 293 is provided with a plurality of high pressure ports 2931 along the axis; the normal pressure port 2911 is suitable for being connected with the third vent 2822 through the connecting port 251, the negative pressure port 2921 is suitable for being connected with the first vent 2821 through the connecting port 251, and the high pressure port 2931 is suitable for being connected with the second vent 2831 through the connecting port 251.

[0090] It should be noted that, during the rotation of the upper driving roller 25, the connecting port 251 on the upper driving roller 25 first passes between the negative pressure port 2921 and the first air vent 2821, and the negative pressure port 2921 is connected with the first air vent 2821, so that the first cavity 282 is in a negative pressure state, and then the quenching liquid on the lower side of the conveyor belt 22 is sucked into the first cavity 282, and the liquid level is higher than the liquid port 2811, and the residue in the quenching liquid is driven to move toward the conveyor belt 22, so that the filter plate 23 can receive the residue and improve the slag removal efficiency.

[0091] The upper driving roller 25 continues to rotate, and the connecting port 251 passes between the normal pressure port 2911 and the third air vent 2822. The normal pressure port 2911 is connected to the third air vent 2822, and the outside air enters the first cavity 282, so that the quenching liquid above the liquid port 2811 flows into the second cavity 283 through the liquid port 2811.

[0092] The upper driving roller 25 continues to rotate, and the connecting port 251 passes between the high-pressure port 2931 and the second air vent 2831. The high-pressure port 2931 is connected to the second air vent 2831, and the pressure in the second cavity 283 increases, and the quenching liquid in the second cavity 283 is discharged into the upper side of the quenching tank 10 through the drain cavity 2832 and the drain hole 2833.

[0093] This cycle is repeated to continuously discharge the quenching liquid on the lower side of the conveyor belt 22 to the upper side of the quenching tank 10, and then the quenching liquid on the upper side of the quenching tank 10 is sucked downward by the stirring and residue concentration components and discharged to the side of the conveyor belt 22, so that the quenching liquid circulates in the quenching tank 10, thereby making the temperature distribution of the quenching liquid more uniform and ensuring the quenching quality.

[0094] Specifically, an air inlet is opened at a position corresponding to the normal pressure chamber 291 at the end of the air cylinder 29 or is connected to the outside atmosphere through a pipeline; the negative pressure chamber 292 is connected to a factory negative pressure source, a vacuum generator, or an air pump or other equipment that can generate a negative pressure environment through a pipeline; the high pressure chamber 293 is connected to a factory high pressure source, an air pump or other equipment that can generate a high pressure ring through a pipeline.

[0095] In this way, compared with directly using a pump body to pump the quenching liquid, the method adopted in this embodiment is that the quenching liquid will not directly enter the negative pressure and high pressure generating equipment, effectively avoiding the trace residue remaining in the quenching liquid from entering the equipment and affecting the equipment, thereby effectively ensuring the service life of the negative pressure and high pressure generating equipment.

[0096] like Figure 4As shown, in a specific implementation manner of the metal parts heat treatment device provided by an embodiment of the present invention, the upper driving roller 25 includes a cylinder, a rotating shaft and an annular cover plate. One end of the cylinder is closed and the other end is open. The air cylinder 29 is arranged in the cylinder and cooperates with the rotation seal of the cylinder; the rotating shaft is arranged on the outside of the closed end of the cylinder, connected to the cylinder, and rotates with the mounting frame 21; the power output end of the driving mechanism 27 is transmission-connected with the rotating shaft to drive the upper driving roller 25 to rotate; the annular cover plate is arranged at one end of the cylinder that is open and covers the outside of the air cylinder 29 and is connected to the cylinder; a connecting rod is provided at the end of the air cylinder 29, and the connecting rod extends out of the annular cover plate and is connected to the mounting frame 21.

[0097] Specifically, the connecting rod is fixedly connected to the mounting frame 21 .

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal parts heat treatment device, characterized in that: include: A quenching tank, which contains quenching liquid; A residue conveying assembly, comprising a mounting frame, a conveyor belt, a plurality of filter plates, a first driving assembly and a brush roller, wherein the mounting frame is connected to the quenching tank; the conveyor belt is arranged obliquely in the quenching tank, with the lower end immersed in the quenching liquid and the upper end protruding out of the quenching tank; the first driving assembly is connected to the mounting frame, and is used to drive the conveyor belt to move; the plurality of filter plates are arranged at intervals along the moving direction of the conveyor belt, and are connected to the conveyor belt, and the filter plates located on the lower side of the conveyor belt are arranged horizontally or with the outer ends inclined upward; the brush roller is arranged on the upper side of the conveyor belt, and is used to brush the surface of the conveyor belt; and A stirring and residue concentration component comprises a first filter, a piston, a second drive component and a water inlet direction changing component, wherein the first filter is arranged at the lower part of the quenching tank and is inclined to one side of the residue conveying component and is connected to the quenching tank; the water inlet direction changing component is arranged at the lower side of the first filter and is connected to the quenching tank, and the quenching liquid on the upper side of the first filter enters the lower side of the first filter through the water inlet direction changing component; the piston is arranged at the lower side of the water inlet direction changing component and is sealed with the quenching tank; the power output end of the second drive component is connected to the water inlet direction changing component and the piston, so as to drive the water inlet direction changing component to switch the water inlet direction between vertical and horizontal states and then drive the piston to move; Among them, the second driving component first drives the water inlet changing component to move so that the water inlet is in a vertical state, and then drives the piston to move downward, so that the quenching liquid on the upper side of the first filter screen is sucked into the lower side of the first filter screen, and the residue is actively adsorbed on the first filter screen; then, the second driving component drives the water inlet changing component to move so that the water inlet is in a horizontal state, toward the residue conveying component, and then drives the piston to move upward, so that the quenching liquid on the lower side of the first filter screen moves along the water inlet toward one side of the residue conveying component, and the residue attached to the first filter screen is flushed to one side of the residue conveying component, and this reciprocating process is performed to complete the aggregation of the residue and the stirring of the quenching liquid.

2. The metal part heat treatment device according to claim 1, characterized in that: The water inlet change-direction component comprises: A plurality of blades are arranged at intervals along the first filter screen from a side away from the residue conveying assembly to a side where the residue conveying assembly is located, and upper ends of the blades are rotatably connected to the quenching tank; and A connecting plate is arranged on the lower side of the blades and is rotationally connected to the plurality of blades. The connecting plate is connected to the power output end of the second driving assembly.

3. The metal part heat treatment device according to claim 2, characterized in that: The second driving assembly comprises: A plurality of guide rods are vertically and spaced apart at the bottom of the quenching tank, and the piston is slidably matched with the guide rods; A first hydraulic cylinder is vertically arranged at the lower side of the quenching tank, a piston rod of the first hydraulic cylinder passes through the bottom of the quenching tank and is connected to the piston, and is in sliding sealing cooperation with the quenching tank; and The second hydraulic cylinder has one end rotatably connected to the quenching tank and the other end rotatably connected to the connecting plate.

4. The metal piece heat treatment device according to claim 1, characterized in that: The stirring and residue concentration component also includes: A second filter screen is horizontally arranged within the vertical projection range of the conveyor belt, is spliced ​​with the edge of the first filter screen, and is connected to the quenching tank; and A plurality of baffles are arranged along the extension direction of the second filter screen. Both ends of the baffles are rotatably connected to the quenching tank and have the freedom to rotate upward and reset. When the plurality of baffles are horizontal, the second filter screen is covered.

5. The metal piece heat treatment device according to claim 1, characterized in that: The first driving assembly comprises: An upper driving roller, arranged at the upper end of the conveyor belt and connected to the mounting frame; A lower driving roller, disposed at the lower end of the conveyor belt and connected to the mounting frame; and The driving mechanism is connected to the mounting frame, and the power output end is connected to the upper driving roller, so as to drive the upper driving roller to rotate; the conveyor belt is sleeved on the upper driving roller and the lower driving roller.

6. The metal piece heat treatment device according to claim 5, characterized in that: The residue conveying assembly also includes a support box, which is arranged between the upper driving roller and the lower driving roller and inside the conveyor belt, and is connected to the mounting frame, and the conveyor belt is in contact with the support box.

7. The metal piece heat treatment device according to claim 6, characterized in that: The filter plate is provided with a plurality of mounting ears, the mounting ears are rotatably connected to the conveyor belt, and the end surface of the mounting ears facing the support box abuts against the support box to limit the rotation of the filter plate; the upper driving roller is provided with a plurality of annular grooves, the annular grooves correspond one-to-one to the mounting ears, and are used to avoid the mounting ears.

8. The metal piece heat treatment device according to claim 6, characterized in that: The conveyor belt is provided with dense filter holes for filtering residues; a first partition is provided in the support box, the first partition is connected to the upper and lower ends of the support box and the two sides parallel to the axis of the upper driving roller, and the interior of the support box is divided into a first cavity and a second cavity, and the first cavity is arranged at the lower side of the second cavity; a liquid through hole is opened on the first partition, and a first baffle is provided on one side of the second cavity of the liquid through hole, and the upper end of the first baffle is connected to the first partition, so that the quenching liquid flows from the first cavity to the second cavity in a one-way manner; A plurality of liquid inlet holes are provided on the side wall of the first cavity that is in contact with the conveyor belt, and a second baffle is provided inside each of the liquid inlet holes, and the upper end of the second baffle is connected to the support box, so that the quenching liquid flows from the quenching tank to the first cavity in a one-way manner; A second partition is provided in the second cavity, a drainage cavity is formed on the side of the second partition facing away from the first cavity, the bottom of the drainage cavity is connected with the second cavity, and a plurality of drainage holes are opened on the side wall of the drainage cavity that is in contact with the conveyor belt; The residue conveying assembly further includes a pumping mechanism, which is connected to the first cavity and the second cavity and is used for extracting gas in the first cavity and flushing gas into the second cavity.

9. The metal piece heat treatment device according to claim 8, characterized in that: The upper driving roller is a cylindrical structure, and is provided with a plurality of connecting ports along the axis direction of the upper driving roller, and the top of the supporting box is in sliding sealing cooperation with the upper driving roller; a plurality of first vents and a plurality of third vents are provided at the top of the first cavity, and a plurality of the first vents are arranged along the axis direction of the upper driving roller, and a plurality of the third vents are arranged along the axis direction of the upper driving roller, and the first vents and the third vents are arranged at intervals along the circumferential direction of the upper driving roller shaft, and the interval is greater than the length of the connecting port in the circumferential direction of the upper driving roller shaft; a plurality of second vents are provided at the top of the second cavity along the axis direction of the upper driving roller; The exhaust mechanism includes an air cylinder, which is sleeved in the upper driving roller and rotates in a sealed manner with the upper driving roller, and one end of the air cylinder is connected to the mounting frame; a normal pressure chamber, a negative pressure chamber and a high pressure chamber are arranged around the axis in the air cylinder, the normal pressure chamber is connected to the outside atmosphere, the negative pressure chamber is connected to a negative pressure source, the high pressure chamber is connected to a high pressure source, and the normal pressure chamber is provided with a plurality of normal pressure ports along the axis, the negative pressure chamber is provided with a plurality of negative pressure ports along the axis, and the high pressure chamber is provided with a plurality of high pressure ports along the axis; the normal pressure port is suitable for being connected with the third vent through the connecting port, the negative pressure port is suitable for being connected with the first vent through the connecting port, and the high pressure port is suitable for being connected with the second vent through the connecting port.

10. The metal piece heat treatment device according to claim 9, characterized in that: The upper driving roller comprises: The cylinder has one end that is closed and the other end that is open, and the gas cylinder is arranged in the cylinder and cooperates with the cylinder to rotate and seal; A rotating shaft is arranged outside the closed end of the cylinder, connected to the cylinder, and rotatably cooperates with the mounting frame; the power output end of the driving mechanism is drivingly connected to the rotating shaft to drive the upper driving roller to rotate; and An annular cover plate is arranged at one end of the cylinder body which is open and covers the outside of the cylinder, and is connected to the cylinder body; a connecting rod is arranged at the end of the cylinder, and the connecting rod extends out of the annular cover plate and is connected to the mounting frame.

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