Automatic cleaning device for hard alloy powder metallurgy die

Abstract

The utility model discloses an automatic cleaning device for a hard alloy powder metallurgy die, relates to the relevant field of metallurgical die cleaning, and aims to solve the problems that in the prior art, small forming spaces, pores, slits and other areas exist in a forming cavity, and cleaning assemblies at fixed positions or fixed cleaning areas are difficult to clean the areas; and cleaning is not thorough. A plurality of cleaning assemblies are arrayed in the middle of the interior of the cleaning pool, each cleaning assembly comprises a cleaning main pipe, water outlet pipes are installed outside the cleaning main pipes in an annular array mode, rotating caps are rotationally connected to the exteriors of the outer ends of the water outlet pipes, and cleaning pipes are connected to the exteriors of the rotating caps in an annular array mode; the cleaning pipe, the rotating cap, the water outlet pipe and the cleaning main pipe are internally communicated, the cleaning pipe is composed of two pipelines with different inclination angles and a bent pipe, and the bent pipe is integrally connected between the two pipelines with different inclination angles.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical mold cleaning, specifically an automatic cleaning device for cemented carbide powder metallurgy molds. Background Technology

[0002] Powder metallurgy, as an advanced material processing method, manufactures parts of various complex shapes by pressing and sintering metal powders, and is widely used in automotive, aerospace, electronics, machinery, and other fields. As a key tool in powder metallurgy technology, the cleanliness of cemented carbide powder metallurgy molds directly affects product quality and production efficiency. During the use of cemented carbide powder metallurgy molds, because the raw materials are mostly powdery particles, and the mold generates high temperatures and pressures during pressing, metal powder, oil, and other impurities easily remain on the mold surface and inside. These impurities not only affect the molding quality of subsequent products but may also accelerate mold wear and shorten its service life. Therefore, regular cleaning of cemented carbide powder metallurgy molds is a crucial step in ensuring product quality and production efficiency.

[0003] Automatic cleaning devices can automatically clean molds, improving cleaning efficiency, ensuring cleaning quality, and reducing labor costs and safety hazards. For example, Chinese authorized patent CN 221335609 U (A Mold Cleaning Device) includes a collection box, a mold fixing structure, and a cleaning treatment structure. The collection box has an open top, and a fixing rod and bracket are welded to the top of the collection box. The mold fixing structure is located above the collection box, and a top plate is welded to the top of the bracket. A hydraulic cylinder is fixedly installed on the top of the top plate, and a treatment plate is located below the top plate. The free end of the hydraulic cylinder is fixedly connected to the treatment plate. The cleaning treatment structure is located above the collection box. This mold cleaning device can flip the mold, remove impurities from the cleaned mold, allowing impurities to fall into the collection box. It also fixes the mold horizontally and vertically, improving the mold's fixation effect, thereby improving the quality of mold cleaning, making operation more flexible, and facilitating widespread use.

[0004] While some existing cleaning devices with similar technologies can clean molds, the mold cavity contains small molding spaces, pores, and slits. Cleaning components with fixed positions or fixed cleaning areas cannot effectively clean these areas, resulting in incomplete cleaning. Utility Model Content

[0005] The purpose of this invention is to provide an automatic cleaning device for cemented carbide powder metallurgy molds, in order to solve the problem mentioned in the background art that the mold cavity contains small molding spaces, pores, slits and other areas, and that cleaning components with fixed positions or fixed cleaning areas are difficult to clean these areas, resulting in incomplete cleaning.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic cleaning device for cemented carbide powder metallurgy molds, comprising a cleaning tank, wherein multiple cleaning components are arranged in a central array inside the cleaning tank, each cleaning component comprising a cleaning main pipe, wherein a water outlet pipe is installed in a ring array outside the cleaning main pipe, wherein a rotating cap is rotatably connected to the outer end of the water outlet pipe, and a cleaning pipe is connected to the outer ring array of the rotating cap, wherein the cleaning pipe, the rotating cap, the water outlet pipe and the cleaning main pipe are internally connected, and the cleaning pipe is composed of two pipes with different inclination angles and a bend, wherein the bend is integrally connected between the two pipes with different inclination angles.

[0007] Preferably, a second drive motor is mounted on one side of the lower end of the cleaning tank via a motor bracket. A first bevel gear is mounted on the output shaft of the second drive motor. The front end of the first bevel gear is meshed with the second bevel gear. A drive gear is coaxially connected to the upper end of the second bevel gear. A lower gear is mounted on the outside of the main cleaning pipe along the lower end of the cleaning tank. One side of the lower gear meshes with the drive gear, and adjacent lower gears are meshed together.

[0008] Preferably, an inner edge is welded and fixed to the lower end of the cleaning tank, and a filter screen is provided at the upper end of the inner edge. The cleaning main pipe passes through the filter screen and is rotatably connected to the filter screen.

[0009] Preferably, a front support plate is installed at the front end of the cleaning tank, a water pump is installed at the upper end of the front support plate, a water pump is installed at the input end of the water pump, the other end of the water pump extends to the lower end of the inner edge of the cleaning tank, and a water supply pipe is installed at the output end of the water pump; the lower ends of the main cleaning pipes on multiple cleaning components are connected to a lower water tank, the main cleaning pipes are connected to the interior of the lower water tank, the main cleaning pipes are rotatably connected to the lower water tank, and the other end of the water supply pipe extends to the interior of the lower water tank.

[0010] Preferably, an L-shaped fixing arm is welded and fixed at the center of the rear end of the cleaning pool. A rectangular slot is opened through the upper end of the cleaning pool on the L-shaped fixing arm. A transverse fixing plate is welded and fixed at both the upper and lower ends of the rectangular slot at the rear end of the L-shaped fixing arm. A first drive motor is installed at the lower end of the lower transverse fixing plate. A threaded rod is connected between the two transverse fixing plates along the output shaft end of the first drive motor.

[0011] Preferably, the threaded rod is externally threaded with a vertical sliding block, which slides along the L-shaped fixed arm for limitation. A front fixed frame is welded and fixed to the front end of the vertical sliding block, and a placement basket is placed inside the front fixed frame.

[0012] Preferably, a water inlet pipe is installed at the upper end of one side of the cleaning pool, and a waste discharge pipe is installed along the upper end of the filter screen on the other side of the cleaning pool.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the cleaning pipe is composed of two pipes with different inclination angles and a bend. The rotating cap is rotatably connected to the water outlet pipe. When the water body of the cleaning liquid is sprayed out, it has a certain pushing force on the cleaning pipe. The cleaning pipe and the rotating cap rotate under the pushing force, and the cleaning liquid is sprayed out in a rotating manner on the vertical plane. The cleaning liquid is sprayed out in a rotating manner by the pumping force of the cleaning liquid, which can effectively pump the cleaning liquid to various positions inside the molding cavity. It can rinse the molding cavity of the mold from different angles, ensuring that there are no dead corners in the cleaning and greatly improving the cleaning effect.

[0015] (2) In this utility model, the cleaning liquid is sprayed out in a rotating manner on the vertical plane and can also be sprayed out in a rotating manner on the horizontal plane, which ensures that the cleaning liquid can evenly cover the forming cavity of the mold and further improves the cleaning quality.

[0016] (3) In this utility model, the first drive motor drives the placement basket to descend into the cleaning liquid, the water pump extracts the cleaning liquid and delivers it to the cleaning component, and the second drive motor drives the cleaning component to rotate. The entire cleaning process does not require manual intervention, which improves cleaning efficiency and reduces labor intensity.

[0017] (4) In this utility model, the filter screen can filter impurities in the cleaning fluid, prevent impurities from clogging the cleaning components, extend the service life of the cleaning components, and also facilitate the recycling of the cleaning fluid. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic cleaning device for cemented carbide powder metallurgy molds from the main view of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall structure of an automatic cleaning device for cemented carbide powder metallurgy molds from an overhead perspective.

[0020] Figure 3 This is a top view of an automatic cleaning device for cemented carbide powder metallurgy molds according to the present invention.

[0021] Figure 4 This is a front view of an automatic cleaning device for cemented carbide powder metallurgy molds according to the present invention.

[0022] Figure 5 This is a side view of an automatic cleaning device for cemented carbide powder metallurgy molds according to the present invention.

[0023] Figure 6 This is a schematic diagram of the cleaning tank of an automatic cleaning device for cemented carbide powder metallurgy molds according to the present invention.

[0024] Figure 7 This is a schematic diagram of the cleaning component of an automatic cleaning device for cemented carbide powder metallurgy molds according to the present invention.

[0025] In the diagram: 1. Cleaning tank; 2. Inlet pipe; 3. Discharge pipe; 4. Front support plate; 5. Inner edge; 6. L-shaped fixing arm; 7. Rectangular slot; 8. Horizontal fixing plate; 9. Filter screen; 10. First drive motor; 11. Threaded rod; 12. Vertical sliding block; 13. Front fixing frame; 14. Placement basket; 15. Cleaning assembly; 16. Main cleaning pipe; 17. Outlet pipe; 18. Rotating cap; 19. Cleaning pipe; 20. Lower gear; 21. Second drive motor; 22. First bevel gear; 23. Second bevel gear; 24. Drive gear; 25. Lower water tank; 26. Water pump; 27. Pumping pipe; 28. Water delivery pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Please see Figures 1-7 One embodiment provided by this utility model:

[0028] (1) Placement of basket descent structure

[0029] An L-shaped fixing arm 6 is welded and fixed at the center of the rear end of the cleaning tank 1. A rectangular slot 7 is cut through the upper end of the cleaning tank 1. Horizontal fixing plates 8 are welded and fixed at both the upper and lower ends of the rear end of the L-shaped fixing arm 6 along the rectangular slot 7. A first drive motor 10 is installed at the lower end of the lower horizontal fixing plate 8. A threaded rod 11 is connected between the two horizontal fixing plates 8 along the output shaft end of the first drive motor 10. A vertical sliding block 12 is externally threaded to the threaded rod 11. The vertical sliding block 12 slides along the L-shaped fixing arm 6. A front fixing frame 13 is welded and fixed to the front end of the vertical sliding block 12. A placement basket 14 is placed inside the front fixing frame 13.

[0030] The forming cavity of the mold is placed downwards and centered in the placement basket 14. The first drive motor 10 is started, driving the threaded rod 11 to rotate. Since the threaded rod 11 is threadedly connected to the vertical sliding block 12, and the vertical sliding block 12 slides along the L-shaped fixed arm 6, the rotation of the threaded rod 11 will drive the vertical sliding block 12 and the front fixed frame 13 to move downwards, thereby causing the placement basket 14 and its internal mold to move downwards into the cleaning liquid in the cleaning tank 1. This structure ensures the stability of the placement basket 14 during the descent process, avoids the mold from shaking during cleaning, improves cleaning safety, and realizes automatic descent of the mold, thus improving cleaning efficiency.

[0031] (2) Rotating structure of cleaning component

[0032] The cleaning tank has multiple cleaning components arranged in a central array. Each cleaning component 15 includes a main cleaning pipe 16. A water outlet pipe 17 is installed in a ring array outside the main cleaning pipe 16. A rotating cap 18 is rotatably connected to the outer end of the water outlet pipe 17. A cleaning pipe 19 is connected to the outer ring array of the rotating cap 18. The cleaning pipe 19, the rotating cap 18, the water outlet pipe 17 and the main cleaning pipe 16 are internally connected. The cleaning pipe 19 consists of two pipes with different inclination angles and a bend. The bend is integrally connected between the two pipes with different inclination angles.

[0033] A second drive motor 21 is mounted on one side of the lower end of the cleaning tank 1 via a motor bracket. A first bevel gear 22 is mounted on the output shaft of the second drive motor 21. A second bevel gear 23 is meshed with the front end of the first bevel gear 22. A drive gear 24 is coaxially connected to the upper end of the second bevel gear 23. A lower gear 20 is mounted on the outside of the cleaning main pipe 16 along the lower end of the cleaning tank 1. One side of the lower gear 20 meshes with the drive gear 24, and adjacent lower gears 20 are meshed together.

[0034] The second drive motor 21 starts, driving the first bevel gear 22 to rotate. The meshing relationship between the first bevel gear 22 and the second bevel gear 23 drives the second bevel gear 23 to rotate. The coaxial relationship between the second bevel gear 23 and the drive gear 24 drives the drive gear 24 to rotate. The meshing relationship between the drive gear 24 and the lower gear 20 on one of the cleaning components 15 drives one of the cleaning components 15 to rotate. The meshing relationship between the lower gear 20 on the cleaning components 15 drives the other cleaning components 15 to rotate. The cleaning fluid rotates in the horizontal plane and is sprayed out through the water outlet pipe 17. This structure allows the cleaning fluid to be sprayed evenly in the horizontal plane, further improving the comprehensiveness and uniformity of cleaning, ensuring that the forming cavity of the mold is cleaned from all directions.

[0035] (3) Cleaning fluid circulation and spraying structure

[0036] The lower end of the cleaning tank 1 is welded with an inner edge 5, and a filter screen 9 is installed at the upper end of the inner edge 5.

[0037] The lower ends of the external cleaning main pipes 16 on multiple cleaning components 15 are connected to a water tank 25. The cleaning main pipes 16 and the water tank 25 are internally connected and rotatably connected.

[0038] A front support plate 4 is installed at the front end of the cleaning tank 1. A water pump 26 is installed at the upper end of the front support plate 4. A water pump pipe 27 is installed at the input end of the water pump 26. The other end of the water pump pipe 27 extends to the lower end of the inner edge 5 inside the cleaning tank 1. A water delivery pipe 28 is installed at the output end of the water pump 26. The other end of the water delivery pipe 28 extends to the inside of the lower water tank 25.

[0039] Water pump 26 draws cleaning fluid from cleaning tank 1 through water pumping pipe 27. Due to the filter screen 9, water pumping pipe 27 can accurately draw cleaning fluid from the lower end of cleaning tank 1, avoiding the extraction of impurities. The drawn cleaning fluid is pumped into lower water tank 25 through water delivery pipe 28. Since lower water tank 25 is connected to the main cleaning pipe 16 of cleaning assembly 15, the cleaning fluid enters the main cleaning pipe 16 and is pumped out through water outlet pipe 17, then enters cleaning pipe 19 through rotating cap 18, and is discharged through cleaning pipe 19 to rinse the forming cavity of the mold. Due to the shape of cleaning pipe 19, the water spraying out has a certain pushing force on cleaning pipe 19. Since cleaning pipe 19 is fixed to rotating cap 18, and rotating cap 18 is rotatably connected to water outlet pipe 17, cleaning pipe 19 and rotating cap 18 rotate under the pushing force, and cleaning fluid is sprayed out in a rotating manner on the vertical plane. This structure allows the cleaning fluid to cover the forming cavity of the mold more evenly, improving the cleaning effect. At the same time, the recycling of cleaning fluid also saves water resources.

[0040] The rotatable connection and internal communication between the rotating cap 18 and the outlet pipe 17, as well as the internal communication and rotatable connection between the cleaning main pipe 16 and the lower water tank 25, are achieved through a limiting structure and a sealing structure. A connecting ring and a connecting ring groove are respectively provided in the two connecting structures. The connecting ring is located in the connecting ring groove and can rotate, thus realizing the limiting and rotation functions. Furthermore, a silicone sealing layer or other sealing layer is provided at the connection position of the two connecting structures, so that the position is relatively sealed while allowing rotation.

[0041] (4) Other structures

[0042] A water inlet pipe 2 is installed on the upper end of one side of the cleaning tank 1 for injecting cleaning liquid into the cleaning tank 1; a waste discharge pipe 3 is installed on the other side of the cleaning tank 1 along the upper end of the filter screen plate 9 for discharging impurities from the cleaning tank 1.

[0043] To ensure cleaning effectiveness, several external rinsing pipes can be installed on the front fixed frame 13. The external rinsing pipes are connected by a central pipe, which is connected to the water supply pipe 28 via a tee. Another pipe extends into the interior of the lower water tank 25, allowing the pumped cleaning fluid to be pumped out to the outside of the rinsing mold. Alternatively, a drive structure and a cleaning roller that cooperates with the drive structure can be installed on the front fixed frame 13 for external cleaning.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hard metal powder metallurgical mould automatic cleaning device comprising a cleaning tank (1), characterised in that: The inside middle array of the cleaning pool (1) has multiple cleaning assemblies (15), the cleaning assembly (15) includes a cleaning main pipe (16), the outer annular array of the cleaning main pipe (16) is provided with a water outlet pipe (17), the outer end of the water outlet pipe (17) is rotatably connected with a rotating cap (18), the outer annular array of the rotating cap (18) is connected with a cleaning pipe (19), the cleaning pipe (19), the rotating cap (18), the water outlet pipe (17) and the cleaning main pipe (16) are internally communicated, the cleaning pipe (19) is composed of two pipes with different inclined angles and a bend pipe, and the bend pipe is integrally connected between the two pipes with different inclined angles.

2. A device for automatic cleaning of a powder metallurgical die for cemented carbide according to claim 1, characterized in that The lower end of the cleaning pool (1) is provided with a second driving motor (21) on one side through a motor support, the output shaft end of the second driving motor (21) is provided with a first bevel gear (22), the front end of the first bevel gear (22) is meshedly connected with a second bevel gear (23), the upper end of the second bevel gear (23) is coaxially connected with a driving gear (24), the lower end of the cleaning main pipe (16) is provided with a lower gear (20) along the lower end of the cleaning pool (1) outside, one side of the lower gear (20) is meshed with the driving gear (24), and adjacent lower gears (20) are meshedly connected.

3. A device for automatic cleaning of a hard metal powder metallurgical mould according to claim 1, characterised in that: The lower end of the cleaning pool (1) is welded and fixed with an inner edge (5), the upper end of the inner edge (5) is provided with a filter screen plate (9), and the cleaning main pipe (16) penetrates through and is rotatably connected with the filter screen plate (9).

4. A device for automatic cleaning of a hard metal powder metallurgical mould according to claim 3, characterised in that: The front end of the cleaning pool (1) is provided with a front support horizontal plate (4), the upper end of the front support horizontal plate (4) is provided with a water pump (26), the input end of the water pump (26) is provided with a water suction pipe (27), the other end of the water suction pipe (27) extends to the inside of the cleaning pool (1) along the lower end of the inner edge (5), and the output end of the water pump (26) is provided with a water supply pipe (28); the lower ends of the cleaning main pipes (16) of multiple cleaning assemblies (15) are jointly connected with a lower water tank (25), the cleaning main pipe (16) is in internal communication with the lower water tank (25), the cleaning main pipe (16) is rotatably connected with the lower water tank (25), and the other end of the water supply pipe (28) extends to the inside of the lower water tank (25).

5. A device for automatic cleaning of a hard metal powder metallurgical mould according to claim 1, characterised in that: The rear end of the cleaning pool (1) is centrally welded and fixed with an L-shaped fixed arm (6), a rectangular slot (7) is formed through the upper end of the cleaning pool (1) in front of and behind the L-shaped fixed arm (6), transverse fixed plates (8) are welded and fixed to the upper and lower ends of the rectangular slot (7) at the rear end of the L-shaped fixed arm (6), a first driving motor (10) is mounted to the lower end of the lower transverse fixed plate (8), and a threaded rod (11) is connected between the two transverse fixed plates (8) along the output shaft end of the first driving motor (10).

6. A device for automatic cleaning of a hard metal powder metallurgical mould according to claim 5, characterised in that: A vertical sliding block (12) is threadedly connected to the outer side of the threaded rod (11), the vertical sliding block (12) is limitingly slid along the L-shaped fixed arm (6), a front fixed frame (13) is welded and fixed to the front end of the vertical sliding block (12), and a placing basket (14) is placed in the inside of the front fixed frame (13).

7. A device for automatic cleaning of a hard metal powder metallurgical mould according to claim 3, characterised in that: The water inlet pipe (2) is installed on the upper end of one side of the cleaning pool (1), and the impurity discharge pipe (3) is installed on the upper end of the other side of the cleaning pool (1) along the filter screen plate (9).

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