Surface treatment device for metal powder injection molding part

Abstract

The utility model discloses a metal powder injection molding part surface treatment device which comprises two machine frames, and a base is fixedly arranged at the upper ends of the machine frames. The mounting frame is arranged at the upper end of the base, a liquid inlet pipe is arranged in the middle of the lower end of a transverse plate of the mounting frame, the upper end of the liquid inlet pipe penetrates through and extends to the position above the mounting frame, the liquid inlet pipe is rotationally connected with the mounting frame, and a spraying disc is fixedly arranged at the lower end of the liquid inlet pipe; and the spraying rods are arranged on the two sides of the lower end of the spraying disc, a plurality of spraying heads are fixedly arranged on the sides, close to the center position of the spraying disc, of the spraying rods and the lower end of the spraying disc correspondingly, and the spraying heads communicate with the spraying rods and the spraying disc correspondingly. And the problem that the formed part is easy to fall off from the discharging frame in the moving process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of surface treatment of molded parts, in particular to a surface treatment device for metal powder injection molded parts. Background Art

[0002] Metal Injection Molding, or MIM for short, is an advanced manufacturing technology that combines metal powder with organic matter to produce high-density, precise-sized, complex-shaped metal parts through injection molding and sintering processes. The precision of metal powder injection molding can usually reach 0.5% of the size, and the net shape of certain features can even reach 0.3%. The application areas of metal powder injection molding technology are very wide, including automotive manufacturing, consumer electronics, and medical treatment. After the metal powder injection molded parts are produced, their surface needs to be treated.

[0003] For example, the Chinese patent "A surface treatment device for MIM parts production" with announcement number CN116851756A includes a processing box, heaters are fixedly installed on the top and bottom of the inner wall of the processing box, a rotating component is installed inside the processing box, a plurality of fixed rods are installed on the surface of the rotating component, at least two rotating plates are installed on the surface of the fixed rods, the fixed rods movably pass through the two rotating plates, a material discharge frame is fixedly installed between the two rotating plates, a fixed component is installed inside the processing box, the fixed rods are connected to the fixed component, and the rotating component includes two driving gears.

[0004] Although the above-mentioned prior art can achieve surface treatment of metal powder injection molded parts, in actual use, on the one hand, the spray cleaning effect of the molded parts is not good enough. When the surface of the metal powder injection molded parts is treated, the internal molded parts are cleaned through the discharge frame through the nozzle, resulting in the molded parts being directly recovered after one spray cleaning, thereby reducing the surface treatment quality of the molded parts. On the other hand, the molded parts are easy to fall off from the discharge frame during the movement. The discharge frame will shake during the movement of the discharge frame, resulting in some molded parts easily falling off from the discharge frame. Therefore, it does not meet the existing needs. In this regard, we propose a surface treatment device for metal powder injection molded parts. Utility Model Content

[0005] The utility model aims to provide a surface treatment device for metal powder injection molded parts, so as to solve the problems that the spray cleaning effect of the molded parts proposed in the above background technology is not good enough and the molded parts are easy to fall off from the discharge frame during movement.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surface treatment device for metal powder injection molding parts, comprising a frame, wherein two frames are provided, and a base is fixedly provided on the upper end of the frame; and further comprising:

[0007] A mounting frame is arranged at the upper end of the base, a liquid inlet pipe is arranged at the middle position of the lower end of the horizontal plate of the mounting frame, the upper end of the liquid inlet pipe passes through and extends to the top of the mounting frame, and the liquid inlet pipe is rotatably connected to the mounting frame, a spray plate is fixedly arranged at the lower end of the liquid inlet pipe, and the spray plate is connected to the liquid inlet pipe;

[0008] The spray rod is arranged on both sides of the lower end of the spray plate, and the spray rod is connected to the spray plate. A plurality of spray heads are fixedly arranged on one side of the spray rod close to the center of the spray plate and the lower end of the spray plate, and the spray heads are respectively connected to the spray rod and the spray plate.

[0009] Preferably, a transmission gear is fixedly provided on the outside of the liquid inlet pipe above the spray plate, a motor is fixedly provided on one side inside the mounting frame, and the output shaft of the motor extends to the bottom of the mounting frame, a driving gear is fixedly provided on the lower end of the motor output shaft, and the driving gear is meshingly connected with the transmission gear.

[0010] Preferably, three support rods are fixedly provided at the upper end of the base located inside the spray rod, and positioning grooves are provided above the inside of the support rods, and one side of the positioning grooves is an open structure.

[0011] Preferably, a material basket is provided between the support rods, and fixing bars are fixedly provided on both sides and the rear end of the material basket, one side of the fixing bar extends to the outside of the positioning groove, and the fixing bar is slidably matched with the positioning groove.

[0012] Preferably, a bolt is provided at the upper end of the support rod, the bolt is threadedly connected to the support rod, and the lower end of the bolt extends into the interior of the positioning groove, a rubber pad is fixedly provided at the lower end of the bolt located inside the positioning groove, and the lower end of the rubber pad is in contact with the fixing strip.

[0013] Preferably, a drainage hole is provided at a middle position inside the base, and the drainage hole is a through structure.

[0014] Preferably, a water tank is provided at the upper end of the frame cross plate, and the water tank corresponds to the position of the drainage hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can perform rotational spraying on molded parts through the spray disc and the spray rod. When spraying, the material basket has been fixed. At this time, the cleaning liquid is poured into the inside of the liquid inlet pipe, and the motor is turned on at the same time. The cleaning liquid flows into the spray rod through the spray disc and is sprayed out from the spray head. At this time, the output shaft of the motor drives the driving gear to rotate. When the driving gear rotates, it drives the transmission gear meshing with it to rotate together. The spray disc rotates together with the spray rod through the transmission gear, so that the cleaning liquid sprayed from the spray head is sprayed more comprehensively on the surface of the molded part, thereby improving the cleaning efficiency.

[0017] 2. The utility model can fix the material basket by the support rod and the bolt. Before the surface treatment of the molded part is performed, the molded part is first placed inside the material basket. At this time, the fixing bars on both sides of the material basket are aligned with the openings of the positioning grooves and the material basket is pushed. At the same time, the fixing bars on both sides slide in the positioning grooves until the fixing bars at the rear end of the material basket move to the positioning grooves on the rear end support rods. Finally, the bolts are turned to move the bolts on the support rods through the external threads. At this time, the bolts drive the rubber pads to move in the vertical direction until the lower end of the rubber pads contacts and squeezes the fixing bars, so that the material basket is fixed on the support rods, thereby avoiding the situation where the material basket moves during the processing operation.

[0018] 3. The utility model can collect and recycle the cleaning liquid through the drainage hole and the water tank. When the molded parts are subjected to surface treatment, the cleaning liquid generated by the spraying flows into the water tank through the drainage hole, and then the operator collects and recycles the cleaning liquid in the water tank. At the same time, when the cleaning liquid passes through the drainage hole, the larger solid particle impurities therein will be intercepted by the opening of the drainage hole, so as to prevent the larger solid particle impurities from flowing into the water tank, so that the cleaning liquid can be collected, thereby preventing the cleaning liquid from polluting the operating environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the internal structure of the utility model;

[0020] Figure 2 It is a side view of the internal structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the spray structure of the utility model;

[0022] Figure 4 For the utility model Figure 1 A partial enlarged view of area A in the middle.

[0023] In the figure: 1. frame; 2. base; 3. mounting frame; 4. liquid inlet pipe; 5. motor; 6. drive gear; 7. transmission gear; 8. spray plate; 9. spray rod; 10. spray head; 11. support rod; 12. positioning groove; 13. bolt; 14. fixing bar; 15. material basket; 16. drainage hole; 17. water tank; 18. rubber pad. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a surface treatment device for metal powder injection molding parts, including a frame 1, and the frame 1 is provided with two, and the upper end of the frame 1 is fixedly provided with a base 2; and further comprising:

[0026] The mounting frame 3 is arranged at the upper end of the base 2, and a liquid inlet pipe 4 is arranged at the middle position of the lower end of the horizontal plate of the mounting frame 3, the upper end of the liquid inlet pipe 4 passes through and extends to the top of the mounting frame 3, and the liquid inlet pipe 4 is rotatably connected to the mounting frame 3, and a spray plate 8 is fixedly arranged at the lower end of the liquid inlet pipe 4, and the spray plate 8 is connected to the liquid inlet pipe 4;

[0027] The spray rod 9 is arranged on both sides of the lower end of the spray plate 8, and the spray rod 9 is connected to the spray plate 8. A plurality of spray heads 10 are fixedly arranged on one side of the spray rod 9 close to the center of the spray plate 8 and on the lower end of the spray plate 8, and the spray heads 10 are respectively connected to the spray rod 9 and the spray plate 8.

[0028] During use, when spraying is performed, the material basket 15 has been fixed, and the cleaning liquid is poured into the liquid inlet pipe 4. At the same time, the motor 5 is turned on, and the cleaning liquid flows into the spray rod 9 through the spray plate 8 and is sprayed out from the spray head 10. At this time, the output shaft of the motor 5 drives the driving gear 6 to rotate. When the driving gear 6 rotates, it drives the transmission gear 7 meshing with it to rotate together. Through the transmission gear 7, the spray plate 8 rotates together with the spray rod 9, so that the cleaning liquid sprayed from the spray head 10 is sprayed more comprehensively on the surface of the molded part.

[0029] See also Figure 1 and Figure 3 A transmission gear 7 is fixedly provided on the outside of the liquid inlet pipe 4 located above the spray plate 8, a motor 5 is fixedly provided on one side inside the mounting frame 3, and the output shaft of the motor 5 extends to the bottom of the mounting frame 3, and a driving gear 6 is fixedly provided on the lower end of the output shaft of the motor 5, and the driving gear 6 is meshed and connected with the transmission gear 7, so that the transmission gear 7 can be driven by the driving gear 6 to rotate together with the liquid inlet pipe 4.

[0030] See also Figure 1 and Figure 2 Three support rods 11 are fixedly arranged at the upper end of the base 2 located inside the spray rod 9. A positioning groove 12 is arranged above the inside of the support rod 11, and one side of the positioning groove 12 is an open structure, which is convenient for positioning the material basket 15 through the positioning groove 12.

[0031] See also Figure 1 and Figure 2 A material basket 15 is arranged between the support rods 11, and fixing bars 14 are fixedly arranged on both sides and the rear end of the material basket 15. One side of the fixing bar 14 extends to the outside of the positioning groove 12, and the fixing bar 14 and the positioning groove 12 are slidably matched, so that the material basket 15 can be fixed by the clamping of the fixing bar 14 and the positioning groove 12.

[0032] See also Figure 1 and Figure 4 A bolt 13 is provided at the upper end of the support rod 11, and the bolt 13 is connected to the support rod 11 by a thread, and the lower end of the bolt 13 extends to the inside of the positioning groove 12, and a rubber pad 18 is fixedly provided at the lower end of the bolt 13 located inside the positioning groove 12, and the lower end of the rubber pad 18 is in contact with the fixing strip 14, so as to increase the friction between the bolt 13 and the fixing strip 14 through the rubber pad 18.

[0033] See also Figure 1 A drainage hole 16 is provided at the middle position inside the base 2 , and the drainage hole 16 is a through structure, so that the cleaning liquid can be discharged from the upper end of the base 2 through the drainage hole 16 .

[0034] See also Figure 1 A water tank 17 is provided at the upper end of the horizontal plate of the frame 1, and the water tank 17 corresponds to the position of the drainage hole 16, so that the used cleaning liquid can be recovered through the water tank 17.

[0035] Working principle: before surface treatment of the molded part, the molded part is first placed inside the material basket 15. At this time, the fixing bars 14 on both sides of the material basket 15 are aligned with the openings of the positioning grooves 12 and the material basket 15 is pushed. At the same time, the fixing bars 14 on both sides of the material basket 15 slide in the positioning grooves 12 until the fixing bars 14 at the rear end of the material basket 15 move to the positioning grooves 12 on the rear end support rod 11. Finally, the bolt 13 is turned to move the bolt 13 on the support rod 11 through the external thread. At this time, the bolt 13 drives the rubber pad 18 to move in the vertical direction until the lower end of the rubber pad 18 contacts and squeezes the fixing bars 14, so that the material basket 15 is fixed on the support rod 11. When the molded part is surface treated, the cleaning liquid generated by the spraying flows into the water tank 17 through the drainage hole 16, and then the cleaning liquid in the water tank 17 is centrally recovered and processed by the operator. At the same time, when the cleaning liquid passes through the drainage hole 16, the larger solid particle impurities in it will be intercepted by the opening of the drainage hole 16 to prevent the larger solid particle impurities from flowing into the water tank 17.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A surface treatment device for metal powder injection molded parts, comprising a frame (1), wherein two frames (1) are provided, and a base (2) is fixedly provided at the upper end of the frame (1); Features: Also includes: A mounting frame (3) is arranged at the upper end of the base (2); a liquid inlet pipe (4) is arranged at the middle position of the lower end of the horizontal plate of the mounting frame (3); the upper end of the liquid inlet pipe (4) passes through and extends to the top of the mounting frame (3); the liquid inlet pipe (4) is rotatably connected to the mounting frame (3); a spray plate (8) is fixedly arranged at the lower end of the liquid inlet pipe (4); and the spray plate (8) is connected to the liquid inlet pipe (4); A spray rod (9) is arranged on both sides of the lower end of the spray plate (8), and the spray rod (9) is connected to the spray plate (8). A plurality of spray heads (10) are fixedly arranged on one side of the spray rod (9) close to the center of the spray plate (8) and the lower end of the spray plate (8), and the spray heads (10) are respectively connected to the spray rod (9) and the spray plate (8).

2. A surface treatment device for metal powder injection molded parts according to claim 1, characterized in that: A transmission gear (7) is fixedly arranged on the outside of the liquid inlet pipe (4) located above the spray plate (8), a motor (5) is fixedly arranged on one side inside the mounting frame (3), and the output shaft of the motor (5) extends to the bottom of the mounting frame (3), and a driving gear (6) is fixedly arranged on the lower end of the output shaft of the motor (5), and the driving gear (6) is meshingly connected with the transmission gear (7).

3. The surface treatment device for metal powder injection molded parts according to claim 2, characterized in that: Three support rods (11) are fixedly arranged at the upper end of the base (2) located inside the spray rod (9), and a positioning groove (12) is arranged above the inside of the support rod (11), and one side of the positioning groove (12) is an open structure.

4. The surface treatment device for metal powder injection molded parts according to claim 3, characterized in that: A material basket (15) is arranged between the support rods (11), and fixing strips (14) are fixedly arranged on both sides and the rear end of the material basket (15), one side of the fixing strip (14) extends to the outside of the positioning groove (12), and the fixing strip (14) and the positioning groove (12) are slidably matched.

5. The surface treatment device for metal powder injection molded parts according to claim 4, characterized in that: A bolt (13) is provided at the upper end of the support rod (11), the bolt (13) is connected to the support rod (11) by means of a thread, and the lower end of the bolt (13) extends into the interior of the positioning groove (12), a rubber pad (18) is fixedly provided at the lower end of the bolt (13) located in the interior of the positioning groove (12), and the lower end of the rubber pad (18) is in contact with the fixing strip (14).

6. The surface treatment device for metal powder injection molded parts according to claim 5, characterized in that: A drainage hole (16) is provided at a middle position inside the base (2), and the drainage hole (16) is a through structure.

7. The surface treatment device for metal powder injection molded parts according to claim 6, characterized in that: A water tank (17) is provided at the upper end of the horizontal plate of the frame (1), and the positions of the water tank (17) and the drainage hole (16) correspond.

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