A surface treatment apparatus for MIM part production

Abstract

The application discloses a surface treatment device for MIM part production and relates to the field of part surface treatment devices.The surface treatment device comprises a treatment box, a heater is fixedly installed on the top and bottom of the inner wall of the treatment box, a rotating assembly is installed in the treatment box, a plurality of fixing rods are installed on the surface of the rotating assembly, at least two rotating plates are installed on the surface of the fixing rods, and the fixing rods movably penetrate through the two rotating plates.The surface treatment device for MIM part production has the advantages that the heater and the rotating assembly are arranged, the heater and the rotating assembly are started, the internal temperature of the treatment box is increased by the heater, and due to the rotating process of the rotating assembly, each feeding frame will pass through different distances away from the heater, so that the MIM parts in each feeding frame can basically receive the same heat, the heat treatment effect of the same batch of MIM parts is almost the same, and the heat treatment effect of the same batch of parts is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of part surface treatment device, in particular to a kind of surface treatment device for MIM part production. BACKGROUND

[0002] MIM is a new type of powder metallurgy near net shape forming technology from plastic injection molding industry, it is well known that plastic injection molding technology produces various complex shaped products at low price, but the strength of plastic product is not high, in order to improve its performance, metal or ceramic powder can be added in plastic to obtain high strength, good wear resistance product, select the metal powder and binder that meet the requirements of MIM, then mix the powder and binder into uniform feedstock at a certain temperature by appropriate method, after granulation, obtain the formed blank, after defatting treatment, sintering densification becomes final product.

[0003] The produced MIM parts need to be surface heat treated, the purpose is to ensure the mechanical properties and processing properties of metal, the process is to place the parts in a certain space, heat the surrounding environment and keep for a period of time, then cool down with selected speed and method to obtain the required microstructure and performance, however, during heating, due to the different distances of parts at different positions from heat source, the temperature received by the surface of parts is also different, thus leading to certain difference between the same batch of production parts. SUMMARY

[0004] The main purpose of the present application is to provide a kind of surface treatment device for MIM part production, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows: a kind of surface treatment device for MIM part production, comprising a treatment box, a heater is fixedly installed on the top and bottom of the inner wall of the treatment box, a rotating assembly is installed in the inside of the treatment box, a plurality of fixed rods are installed on the surface of the rotating assembly, at least two rotating plates are installed on the surface of the fixed rod, the fixed rod is movably penetrated through the two rotating plates, a discharging frame is fixedly installed between the two rotating plates, a fixing assembly is installed in the inside of the treatment box, and the fixed rod is connected with the fixing assembly.

[0006] The rotating assembly comprises two drive gears, drive tooth belts are drivingly installed on the surface of the two drive gears, a plurality of fixed rods are installed on the surface of the drive tooth belts, an installation assembly is installed in the inside of the treatment box, the drive gears are installed on the surface of the installation assembly, a drive motor is installed on the surface of the treatment box, and the drive motor is used to drive the rotation of the drive gears.

[0007] The mounting assembly comprises a fixed plate, two rotating shafts are mounted on the surface of the fixed plate, two drive gears are fixedly sleeved on the surface of the two rotating shafts, diameter expanding plates are fixedly mounted on the surface of the two rotating shafts, and the surface of the diameter expanding plate is in contact with the surface of the drive gear.

[0008] The fixing assembly comprises an extrusion inclined rod, the extrusion inclined rod is installed in the inside of the processing box, a groove is formed in the surface of the fixing rod, a moving inclined rod is installed in the inside of the groove, a rebound assembly is mounted on the surface of the moving inclined rod, a moving assembly is mounted on the surface of the moving inclined rod, a clamping groove is formed in the inside of the rotating plate, and the moving assembly moves into the inside of the clamping groove.

[0009] The rebound assembly comprises a moving plate, the moving plate is installed on the surface of the moving inclined rod, an extrusion spring is installed in the inside of the groove, one end of the extrusion spring is fixedly installed on the surface of the moving plate, and the other end of the extrusion spring is fixed on the inner wall of the groove.

[0010] The moving assembly comprises a moving block, the moving block is movably penetrated into the inside of the groove, the shape of the moving block is matched with that of the clamping groove, an extrusion inclined block is mounted on the surface of the moving inclined rod, and the surface of the extrusion inclined block abuts against the surface of the moving block.

[0011] The number of the moving blocks is two, and a connecting spring is installed between the two moving blocks.

[0012] The shape of the rotating plate is triangular, the fixing rod is movably penetrated into the end position of the rotating plate, and the feeding frame is installed on the opposite side position of the end position.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1、In the present application, the heater and the rotating assembly are set, the heater and the rotating assembly are started, the heater makes the temperature in the inside of the processing box increase, due to the rotating process of the rotating assembly, each feeding frame will pass through different distances away from the heater, so that the MIM parts in each feeding frame can basically receive the same heat, the effect of the heat surface treatment of the same batch of MIM parts is almost the same, and the heat treatment effect of the same batch of parts is ensured.

[0015] 2、In the present application, the rotating plate and the fixing rod are set, the drive motor drives one of the drive gears to rotate, the transmission of the transmission gear belt can make the other pinion rotate, at this time, the fixing rod can move along the surface of the drive gear belt, so that each fixing rod can move to the same position, in the moving process, the rotating plate will still ensure that the feeding frame is at the lower end position due to the action of gravity, so as to prevent the material from falling off.

[0016] 3、The present application, by setting the moving inclined rod, extrusion inclined rod and extrusion spring, when the moving inclined rod moves to the surface of the extrusion inclined rod, the moving inclined rod is extruded, at this time the moving inclined rod moves inside the groove, when the moving inclined rod moves, the extrusion spring is compressed, when the moving inclined rod moves away from the extrusion inclined rod, the extrusion spring returns to the original position due to its elastic force, facilitating the next extrusion, when the moving inclined rod moves, the extrusion inclined block extrudes the moving block, the moving block is clamped inside the clamping groove, thereby ensuring fixation, when the moving inclined rod moves away, it can move away from the clamping groove due to gravity, thereby ensuring that the rotating plate is fixed on the surface of the fixing rod, facilitating the dismounting of the MIM part. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the surface treatment device for MIM part production of the application;

[0018] Figure 2 It is a schematic diagram of the internal structure of the treatment box of the surface treatment device for MIM part production of the application;

[0019] Figure 3 It is a schematic diagram of the position part structure of the driving tooth belt of the surface treatment device for MIM part production of the application;

[0020] Figure 4 It is a schematic diagram of the position part structure of the expanding plate of the surface treatment device for MIM part production of the application;

[0021] Figure 5 It is a schematic diagram of the position part structure of the fixing rod of the surface treatment device for MIM part production of the application;

[0022] Figure 6 It is a schematic diagram of the position part structure of the groove of the surface treatment device for MIM part production of the application.

[0023] In the figure: 1, treatment box; 2, heater; 3, fixing rod; 4, rotating plate; 5, discharging frame; 6, driving gear; 7, driving tooth belt; 8, driving motor; 9, fixed plate; 10, rotating shaft; 11, expanding plate; 12, extrusion inclined rod; 13, groove; 14, moving inclined rod; 15, clamping groove; 16, extrusion spring; 17, moving block; 18, extrusion inclined block; 19, connecting spring; 20, moving plate. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, purposes and effects of the application easy to understand, the application is further described below in conjunction with specific embodiments.

[0025] As Figures 1-6As shown, including processing box 1, the surface of processing box 1 is mounted with sealing door, the top and bottom of the inner wall of processing box 1 is fixedly mounted with heater 2, a certain heat is emitted from the top and bottom of the inside of processing box 1, the heat of both ends is the highest, the heat of the middle will be relatively reduced, the inside of processing box 1 is installed with rotating assembly, the surface of rotating assembly is installed with several fixed rods 3, the surface of fixed rod 3 is installed with at least two rotating plates 4, the fixed rod 3 is movably penetrated through two rotating plates 4, two rotating plates 4 are fixedly installed with discharging frame 5, discharging frame 5 is the place for storing parts, the inside of processing box 1 is installed with fixing assembly, the fixed rod 3 is connected with fixing assembly, fixing assembly is used to ensure that the fixed rod 3 is stable when moving to the fixed position and cannot rotate.

[0026] In use, first, the MIM parts are placed in the inside of discharging frame 5, the number of discharging frame 5 is set to several, the surface of multiple MIM parts can be heat treated at the same time, then the heater 2 and rotating assembly are started, the heater 2 makes the inside temperature of processing box 1 rise, due to the rotating process of rotating assembly, each discharging frame 5 will pass through different distances away from heater 2, so that the MIM parts in each discharging frame 5 can basically receive the same heat, ensuring that the heat surface treatment effect of the same batch of MIM parts is almost the same, due to the effect of gravity in the rotating process of rotating assembly, the discharging frame 5 is located below the fixed rod 3, preventing the MIM parts from falling, and due to the rotation of rotating plate 4, the MIM parts are difficult to be taken down smoothly, therefore, the fixing assembly can be used to fix the discharging frame 5, facilitating the taking down of MIM parts.

[0027] The number of rotating assembly is set to two, which are symmetrically located on both sides of the inside of processing box 1, the rotating assembly includes two driving gears 6, the two driving gears 6 are completely same, the surface of two driving gears 6 is drivingly installed with driving tooth belt 7, the material of driving gear 6 and driving tooth belt 7 is same, which needs to ensure its heat resistance, several fixed rods 3 are installed on the surface of driving tooth belt 7, the fixed rod 3 is installed along the shape of driving tooth belt 7, the both ends of fixed rod 3 extend to both sides of driving tooth belt 7, the inside of processing box 1 is installed with mounting assembly, the driving gear 6 is installed on the surface of mounting assembly, the surface of processing box 1 is installed with driving motor 8, the driving motor 8 is used to drive the rotation of driving gear 6.

[0028] In the process of using, the driving motor 8 is started, and the driving motor 8 drives one of the driving gears 6 to rotate, and the driving gears 6 are driven to rotate through the transmission of the driving toothed belts 7, at this time, the fixed rods 3 can move along the surface of the driving toothed belts 7, so that each fixed rod 3 can move to the same position, and in the moving process, the rotating plate 4 can still ensure that the discharging frame 5 is at the lower end position due to the action of gravity, so as to prevent the material from falling off.

[0029] The mounting assembly comprises two fixed plates 9, two rotating shafts 10 are mounted on the surface of each fixed plate 9, the two driving gears 6 are fixedly sleeved on the surface of the two rotating shafts 10, and the two rotating shafts 10 are fixedly provided with expansion plates 11.

[0030] The fixed assembly comprises an extrusion inclined rod 12, the extrusion inclined rod 12 is installed in the inside of the processing box 1, the surface of the fixed rod 3 is provided with a groove 13, the inside of the groove 13 is installed with a moving inclined rod 14, the surface of the moving inclined rod 14 is installed with a rebound assembly and a moving assembly, the inside of the rotating plate 4 is provided with a clamping groove 15, and the moving assembly moves to the inside of the clamping groove 15.

[0031] When the moving inclined rod 14 moves to the surface of the extrusion inclined rod 12, the moving inclined rod 14 is extruded, at this time, the moving inclined rod 14 moves in the groove 13, and the moving assembly is clamped in the clamping groove 15, so that the rotating plate 4 is fixed on the surface of the fixed rod 3, and the MIM part is conveniently unloaded.

[0032] The rebound assembly comprises a moving plate 20, the moving plate 20 is installed on the surface of the moving inclined rod 14, the inside of the groove 13 is installed with an extrusion spring 16, one end of the extrusion spring 16 is fixedly installed on the surface of the moving plate 20, and the other end of the extrusion spring 16 is fixedly installed on the inner wall of the groove 13.

[0033] When the moving inclined rod 14 moves, the extrusion spring 16 is compressed, when the moving inclined rod 14 moves away from the extrusion inclined rod 12, the extrusion spring 16 returns to the original position due to the rebound force, and the next extrusion is facilitated.

[0034] The moving assembly comprises a moving block 17 movably penetrating the inside of the groove 13, the moving block 17 is matched with the shape of the clamping groove 15, the surface of the moving inclined rod 14 is provided with an extruding inclined block 18, the surface of the extruding inclined block 18 abuts against the surface of the moving block 17, when the moving inclined rod 14 moves, the extruding inclined block 18 extrudes the moving block 17, the moving block 17 is clamped in the inside of the clamping groove 15, so as to guarantee the fixation, when the moving inclined rod 14 moves away, it can move away from the clamping groove 15 due to the gravity.

[0035] The number of the moving block 17 is two, a connecting spring 19 is arranged between the two moving blocks 17, one end of the connecting spring 19 is movably arranged on the surface of the extruding inclined block 18, so as to facilitate the rebound of the moving block 17.

[0036] The shape of the rotating plate 4 is triangular, the fixed rod 3 movably penetrates the end position of the rotating plate 4, the discharging frame 5 is arranged on the opposite side of the end position.

[0037] It needs to be explained that the present application is a kind of surface treatment device for MIM part production, when in use, first, the MIM parts are placed in the inside of the material placing frame 5, the number of material placing frame 5 is provided with several, can carry out heat treatment to the surface of multiple MIM parts at the same time, then start the heater 2 and rotating assembly, the heater 2 makes the inside temperature of the treatment box 1 rise, the driving motor 8 drives one of the driving gears 6 to rotate, through the transmission effect of the driving toothed belt 7, another driving gear 6 can be rotated, at this time, the fixed rod 3 can move along the surface of the driving toothed belt 7, so that each fixed rod 3 can move to the same position, in the process of moving, the rotating plate 4 will still ensure that the material placing frame 5 is at the lower end position due to the action of gravity, so as to prevent the material from falling off, so that each material placing frame 5 will pass through different distances away from the heater 2, so that the MIM parts in each material placing frame 5 can basically receive the same heat, ensure that the same batch of MIM parts, the effect of heat surface treatment is almost the same, because in the process of rotating assembly rotating, due to the action of gravity, the material placing frame 5 will be located below the fixed rod 3, to prevent the MIM parts from falling off, and because the rotating plate 4 rotates, it will be difficult for the MIM parts to be taken down smoothly, so the fixing assembly can be used to fix the material placing frame 5, which facilitates the taking down of the MIM parts, when the moving inclined rod 14 moves to the surface of the extruding inclined rod 12, the moving inclined rod 14 will be extruded, at this time, the moving inclined rod 14 will move in the inside of the groove 13, when the moving inclined rod 14 moves, the extruding spring 16 will be compressed, when the moving inclined rod 14 moves away from the extruding inclined rod 12, the extruding spring 16 will make the extruding inclined rod 12 return to the initial position due to its elastic force, facilitating the extrusion of the next time, when the moving inclined rod 14 moves, the extruding inclined block 18 will extrude the moving block 17, the moving block 17 will be clamped in the inside of the clamping groove 15, so as to ensure fixation, when the moving inclined rod 14 moves away, it can move away from the clamping groove 15 due to gravity, so as to ensure that the rotating plate 4 is fixed on the surface of the fixed rod 3, facilitating the unloading of the MIM parts.

[0038] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for MIM part production, comprising a treatment box (1), a heater (2) is fixedly installed on the top and bottom of the inner wall of the treatment box (1), characterized in that: The inside of the processing box (1) is internally provided with a rotating assembly, the surface of the rotating assembly is provided with a plurality of fixed rods (3), the surface of the fixed rod (3) is provided with two rotating plates (4), the fixed rod (3) movably penetrates through the two rotating plates (4), and a discharging frame (5) is fixedly installed between the two rotating plates (4). The inside of the processing box (1) is internally provided with a fixing assembly, and the fixed rod (3) is connected with the fixing assembly. The fixing assembly comprises an extrusion inclined rod (12) installed in the inside of the processing box (1), a groove (13) is formed in the surface of the fixed rod (3), a moving inclined rod (14) is installed in the inside of the groove (13), a rebound assembly is installed on the surface of the moving inclined rod (14), a moving assembly is installed on the surface of the moving inclined rod (14), a clamping groove (15) is formed in the inside of the rotating plate (4), and the moving assembly moves into the inside of the clamping groove (15). The rebound assembly comprises a moving plate (20) installed on the surface of the moving inclined rod (14), an extrusion spring (16) is installed in the inside of the groove (13), one end of the extrusion spring (16) is fixedly installed on the surface of the moving plate (20), and the other end of the extrusion spring (16) is fixed to the inner wall of the groove (13). The moving assembly comprises a moving block (17) movably penetrating through the inside of the groove (13), the moving block (17) is matched with the shape of the clamping groove (15), an extrusion inclined block (18) is installed on the surface of the moving inclined rod (14), and the surface of the extrusion inclined block (18) abuts against the surface of the moving block (17).

2. A surface treatment apparatus for MIM part production according to claim 1, characterized in that: The rotating assembly comprises two drive gears (6), drive tooth belts (7) are drivingly installed on the surfaces of the two drive gears (6), a plurality of fixed rods (3) are installed on the surfaces of the drive tooth belts (7), the inside of the processing box (1) is internally provided with a mounting assembly, the drive gears (6) are installed on the surfaces of the mounting assembly, a driving motor (8) is installed on the surface of the processing box (1), and the driving motor (8) is used to drive the rotation of the drive gears (6).

3. A surface treatment apparatus for MIM part production according to claim 2, characterized in that: The mounting assembly comprises a fixed plate (9), two rotating shafts (10) are installed on the surface of the fixed plate (9), the two drive gears (6) are fixedly sleeved on the surfaces of the two rotating shafts (10), and the surfaces of the two rotating shafts (10) are fixedly installed with expansion plates (11) in contact with the surfaces of the drive gears (6).

4. The apparatus for surface treatment of MIM parts production according to claim 1, characterized in that: The number of the moving blocks (17) is two, and a connecting spring (19) is installed between the two moving blocks (17).

5. The apparatus for surface treatment of MIM parts production according to claim 1, characterized in that: The shape of the rotating plate (4) is triangular, the fixed rod (3) movably penetrates through the end position of the rotating plate (4), and the discharging frame (5) is installed on the opposite side position of the end position.

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