Powder moulding device for processing metal parts of quick coupling pipe joints

Abstract

The application relates to the powder metallurgy field and particularly relates to a powder die pressing device for processing fast-insertion type pipe joint metal pieces, which comprises a pipe joint die pressing table, a quantitative material dropping assembly and a switching control assembly, a lower die forming cavity is arranged on the pipe joint die pressing table, a powder feeding box is horizontally arranged above the lower die forming cavity, the powder feeding box is movably arranged on the pipe joint die pressing table through a sliding assembly, when the device is used, the powder feeding box can stably slide horizontally above the pipe joint die pressing table through the sliding assembly, when it is needed to fill metal powder in the lower die forming cavity, quantitative material dropping can be carried out in the lower die forming cavity through the quantitative material dropping assembly, excessive metal powder waste is avoided, and the metal powder in the lower die forming cavity can be shaken and made uniform through vibration of the powder feeding box, the quality of die pressing forming is improved, and in addition, quantitative dropping of the quantitative material dropping assembly can be completed during movement of the powder feeding box through cooperation of the switching control assembly, the operation is simple, and the device is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of powder metallurgy, specifically to a powder molding device for processing quick-connect pipe fitting metal parts. Background Technology

[0002] Pipe fittings are devices used for pipe connections. Pipe fitting powder metallurgy molding devices are special equipment designed for powder metallurgy processes. They are used to press metal powder into pipe fitting blanks through molds. The core of the device consists of a mold system (including upper mold, lower mold, and concave mold), a pressurizing mechanism, a powder feeding assembly, and a demolding device.

[0003] During use, metal powder is quantitatively filled into the mold cavity. The pressurizing mechanism applies a preset pressure through hydraulic or mechanical transmission, causing the powder to densify and form a pipe joint blank with a certain shape and strength. Finally, the blank is removed by the demolding mechanism and then processed into a sintering device. In existing metal powder feeding operations, a box with an opening at the bottom is used. The box is filled with metal powder. When the metal powder feeding box reaches the forming cavity of the lower mold, the powder fills the forming cavity, and the upper mold presses down to complete the forming. Because there is a certain gap between the metal powder feeding box and the table, a large amount of metal powder will be scattered and accumulated on the table during powder feeding, which wastes costs and is inconvenient to clean. Moreover, when the powder fills the forming cavity naturally, the uniformity of powder distribution varies greatly, resulting in differences in the quality of the formed blank. Summary of the Invention

[0004] The purpose of this invention is to provide a powder molding apparatus for processing quick-connect pipe fitting metal parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a powder molding device for processing quick-connect pipe fitting metal parts, comprising:

[0006] A pipe fitting molding table is provided with a lower mold forming cavity. A powder feeding box is horizontally provided above the lower mold forming cavity. The powder feeding box is movably mounted on the pipe fitting molding table through a sliding assembly, which includes two slide rails and two slide seats.

[0007] A quantitative feeding assembly is provided inside the powder feeding box. The quantitative feeding assembly includes a temporary storage box, a connecting sleeve, a quantitative tube, and a central rod. The quantitative tube and the central rod are both inserted into the connecting sleeve. The lower end of the quantitative tube is provided with a conical feeding port, and the lower diameter of the conical feeding port is smaller than the diameter of the lower mold forming cavity.

[0008] A switching control assembly is provided in two slides. The switching control assembly includes two lifting control plates, which are respectively connected to both sides of the quantitative tube.

[0009] Preferably, the two slide rails are horizontally arranged above the pipe joint molding table, the two slide rails are located on both sides of the lower mold forming cavity, and the two slide blocks are horizontally arranged at the lower ends of both sides of the powder feeding box, and the two slide blocks are slidably sleeved on the two slide rails respectively.

[0010] Preferably, the powder feeding box is horizontally provided with a partition mounting plate, and a temporary storage box is located at the upper center of the partition mounting plate. The lower end of the temporary storage box has a combination hole through the center of the partition mounting plate. A connecting sleeve is inserted into the combination hole through a flange and bolts, and the diameter of the connecting sleeve is the same as the diameter of the combination hole.

[0011] Preferably, the upper end of the quantitative tube is inserted into the lower end of the connecting sleeve, the outer circumference of the quantitative tube is in contact with the inner circumference of the connecting sleeve, the lower end diameter of the conical discharge port is smaller than the upper end diameter, the lower end of the quantitative tube is vertically provided with a contact sleeve, the lower end of the contact sleeve is in contact with the upper end of the pipe joint molding table, and the diameter of the contact sleeve is larger than the diameter of the lower mold forming cavity.

[0012] Preferably, the flange of the connecting sleeve is provided with a plurality of vertically arranged spring guide rods at its lower end, and a lifting connecting plate is provided horizontally on the outer periphery of the metering tube. The lower end of the spring guide rod is movably inserted through the lifting connecting plate through a constraint block, and a circular plate is provided horizontally at the upper end of the spring guide rod. A downward compression spring is sleeved between the spring guide rod and the circular plate and the lifting connecting plate.

[0013] Preferably, the upper end of the connecting sleeve is provided with a horizontal support frame, the central rod is vertically located at the lower center of the support frame, and the lower end of the central rod is vertically inserted into the center of the metering tube.

[0014] Preferably, the upper and lower sides of the central rod inserted into the quantitative tube are respectively provided with a second central block and a first central block. The upper and lower ends of the first central block are provided with a first conical surface, and the first conical surface at the lower end of the first central block is correspondingly provided with the inner side of the conical discharge port.

[0015] Preferably, the upper end of the second central block is provided with a second conical surface, and the upper end of the metering tube is provided with a sealing ring. Both the upper and lower ends of the sealing ring are provided with a third inclined surface. When the third inclined surface at the lower end of the sealing ring is in contact with the second inclined surface of the second central block, the inner side of the conical discharge port is far away from the first conical surface at the lower end of the first central block.

[0016] Preferably, each slide has a horizontally open movable plate groove, one side of which is connected to a powder feeding box. A lifting control plate is horizontally inserted into the movable plate groove via a guide rod. A combined connecting sleeve is horizontally provided on the side of the lifting connecting plate near the lifting control plate. A synchronous connecting rod is horizontally inserted through the center of the lifting control plate via a thread. One side of the synchronous connecting rod passes through the lifting control plate and is inserted into the combined connecting sleeve.

[0017] Preferably, the upper end of each slide rail is provided with a positioning groove, and both sides of the positioning groove are inclined surfaces. The side of the slide block that is connected to the slide rail is provided with a strip groove. The lifting control plate is provided with a sliding roller on one side of the strip groove. The positioning groove and the lower mold forming cavity are on the same plane. The metering tube and the sliding roller are on the same plane. When the sliding roller is located in the center of the positioning groove, the metering tube is located directly above the lower mold forming cavity.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In use, this device allows the powder feeding box to slide horizontally and stably above the pipe joint molding table via a sliding component. When it is necessary to fill the lower mold forming cavity with metal powder, the quantitative feeding component can quantitatively feed the powder into the lower mold forming cavity, avoiding excessive waste of metal powder. In conjunction with the vibration of the powder feeding box, the metal powder in the lower mold forming cavity can be vibrated evenly, improving the quality of molding. In addition, with the switching control component, the quantitative feeding of the quantitative feeding component can be completed during the movement of the powder feeding box. The operation is simple, worry-free and convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a partial side-section structural diagram of the present invention;

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of part A;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of part B;

[0024] Figure 5 For the present invention Figure 3 Schematic diagram of part C;

[0025] Figure 6 This is a schematic diagram of the slide rail structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the quantitative tube installation structure of the present invention;

[0027] Figure 8 For the present invention Figure 7 Schematic diagram of part D;

[0028] Figure 9 This is a schematic diagram of the temporary storage box structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the lifting control plate and the quantitative tube of the present invention.

[0030] In the diagram: 1. Pipe fitting molding table; 2. Lower mold forming cavity; 3. Powder feeding box; 4. Slide rail; 5. Slide seat; 6. Separating mounting plate; 7. Temporary storage box; 8. Connecting sleeve; 9. Quantitative tube; 10. Conical discharge port; 11. Support frame; 12. Center rod; 13. First center block; 14. Sealing ring; 15. Second center block; 16. Contact sleeve; 17. Lifting connecting plate; 18. Spring guide rod; 19. Downward pressure spring; 20. Movable plate groove; 21. Lifting control plate; 22. Positioning groove; 23. Sliding roller; 24. Combined connecting sleeve; 25. Synchronous connecting rod; 26. Vibration module. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-10 The present invention provides the following technical solutions:

[0033] Example 1: A powder molding device for processing quick-connect pipe fitting metal parts includes a pipe fitting molding platform 1, a lower mold forming cavity 2 on the pipe fitting molding platform 1, and a powder feeding box 3 horizontally above the lower mold forming cavity 2. The powder feeding box 3 is movably mounted on the pipe fitting molding platform 1 via a sliding assembly. The sliding assembly includes two slide rails 4 and two slide blocks 5. The two slide rails 4 are horizontally mounted above the pipe fitting molding platform 1 and are located on both sides of the lower mold forming cavity 2. The two slide blocks 5 are horizontally mounted on the lower ends of both sides of the powder feeding box 3, and the two slide blocks 5 are slidably sleeved on the two slide rails 4. An upper mold is mounted above the pipe fitting molding platform 1 via a mold guide post. The upper mold is correspondingly mounted to the lower mold forming cavity 2. The powder feeding box 3 can move horizontally above the pipe fitting molding platform 1 via the slide rails 4 and slide blocks 5. When the upper mold is raised, the powder feeding box 3 can be positioned above the lower mold forming cavity 2 to fill with metal powder.

[0034] A quantitative feeding assembly is installed to quantitatively fill the metal powder in the lower mold forming cavity 2. The quantitative feeding assembly is located inside the powder feeding box 3 and includes a temporary storage box 7, a connecting sleeve 8, a quantitative tube 9, and a central rod 12. The quantitative tube 9 and the central rod 12 are both inserted into the connecting sleeve 8. The lower end of the quantitative tube 9 has a conical feeding port 10, and the diameter of the lower end of the conical feeding port 10 is smaller than the diameter of the lower mold forming cavity 2. A horizontal partition mounting plate 6 is installed inside the powder feeding box 3. The temporary storage box 7 is located at the upper center of the partition mounting plate 6. The lower end of the temporary storage box 7 has a combination hole that penetrates the center of the partition mounting plate 6. The connecting sleeve 8 is inserted into the combination hole through a flange and bolts. The diameter of the connecting sleeve 8 is the same as the diameter of the connecting hole. The upper end of the metering tube 9 is inserted into the lower end of the connecting sleeve 8. The outer circumference of the metering tube 9 is in contact with the inner circumference of the connecting sleeve 8. The lower end diameter of the conical discharge port 10 is smaller than the upper end diameter. The lower end of the metering tube 9 is vertically provided with a contact sleeve 16. The lower end of the contact sleeve 16 is in contact with the upper end of the pipe joint molding table 1. The diameter of the contact sleeve 16 is larger than the diameter of the lower mold forming cavity 2. The powder feeding box 3 is connected to the temporary storage box 7 above and a powder conveying pipe is provided. The powder in the temporary storage box 7 can fall into the metering tube 9 through the connecting sleeve 8, and then fall accurately into the lower mold forming cavity 2 under the converging action of the conical discharge port 10.

[0035] The flange of the sleeve 8 is provided with several vertically arranged spring guide rods 18 at its lower end. The outer periphery of the metering tube 9 is provided with a horizontally arranged lifting connecting plate 17. The lower end of the spring guide rod 18 is movably inserted through the lifting connecting plate 17 through a constraint block. The upper end of the spring guide rod 18 is provided with a horizontally arranged circular plate. A downward pressure spring 19 is sleeved between the spring guide rod 18 and the circular plate and the lifting connecting plate 17. The upper end of the partition mounting plate 6 is provided with several vibration modules 26. The vibration modules 26 can avoid the phenomenon of metal powder sticking to the wall. At the same time, the metering tube 9 can be elastically pressed down on the lifting connecting plate 17 by the downward pressure spring 19, so that the contact sleeve 16 below the metering tube 9 contacts the upper end of the pipe joint molding table 1. When the conical discharge port 10 corresponds to the lower mold forming cavity 2, the contact sleeve 16, in conjunction with the vibration of the vibration module 26, can make the metal powder in the lower mold forming cavity 2 vibrate evenly and avoid large differences in the gaps between powders.

[0036] A support frame 11 is horizontally installed at the upper end of the sleeve 8. A central rod 12 is vertically installed at the lower center of the support frame 11, and the lower end of the central rod 12 is vertically inserted into the center of the metering tube 9. A second central block 15 and a first central block 13 are respectively provided on the upper and lower sides of the central rod 12 inserted into the metering tube 9. The upper and lower ends of the first central block 13 are provided with a first conical surface, and the first conical surface at the lower end of the first central block 13 corresponds to the inner side of the conical discharge port 10. The upper end of the second central block 15 is provided with a second conical surface. A sealing ring 14 is provided at the upper end of the metering tube 9. The upper and lower ends of the sealing ring 14 are provided with a third inclined surface. When the third inclined surface at the lower end of the sealing ring 14 is aligned with the second central block 15, the sealing ring 15 is positioned with a second conical surface. When the second inclined surface of the core block 15 is in contact with the first conical surface of the first center block 13, the inner side of the conical discharge port 10 is far away from the first conical surface of the lower end of the first center block 13. When the metering tube 9 is raised, the inner side of the conical discharge port 10 abuts and seals against the first conical surface of the lower end of the first center block 13. At the same time, the sealing ring 14 is misaligned with the center rod 12. The metal powder in the temporary storage box 7 falls from the connecting sleeve 8 into the metering tube 9. When the metering tube 9 descends through the downward spring 19 and contacts the sleeve 16 and the upper end of the pipe joint molding table 1, the sealing ring 14 and the center rod 12 combine and seal. The metered metal powder in the metering tube 9 falls from the gap between the conical discharge port 10 and the first center block 13 into the lower mold forming cavity 2.

[0037] Example 2: Based on Example 1, a switching control component is set to control the up-and-down movement of the quantitative tube 9. The switching control component is located in two slides 5 and includes two lifting control plates 21. The two lifting control plates 21 are respectively connected to both sides of the quantitative tube 9. Each slide 5 has a horizontally opened movable plate groove 20. One side of the movable plate groove 20 is connected to the powder feeding box 3. The lifting control plate 21 is horizontally inserted into the movable plate groove 20 through a guide rod. The lifting connecting plate 17 is horizontally provided with a combined connecting sleeve 24 on the side near the lifting control plate 21. The center of the lifting control plate 21 is horizontally inserted through a threaded synchronous connecting rod 25. One side of the synchronous connecting rod 25 passes through the lifting control plate 21 and is inserted into the combined connecting sleeve 24. The lifting control plate 21 can move up and down along the guide rod in the movable plate groove 20. When the lifting control plate 21 moves, it can drive the lifting connecting plate 17 and the quantitative tube 9 to move up and down synchronously through the synchronous connecting rod 25.

[0038] The upper end of each slide rail 4 is provided with a positioning groove 22. Both sides of the positioning groove 22 are inclined surfaces. The slide block 5 is connected to the slide rail 4 on one side, and the movable plate groove 20 is provided with a strip groove. The lifting control plate 21 is located on one side of the strip groove and has a sliding roller 23. The positioning groove 22 and the lower mold forming cavity 2 are on the same plane. The metering tube 9 and the sliding roller 23 are on the same plane. When the sliding roller 23 is located in the center of the positioning groove 22, the metering tube 9 is located directly above the lower mold forming cavity 2. When the sliding roller 23 is in the position of the positioning groove 22, the lifting... The connecting plate 17 descends under the action of the downward spring 19. At this time, the lifting connecting plate 17, the lifting control plate 21, and the sliding roller 23 descend simultaneously. At this time, the contact sleeve 16 contacts the pipe joint molding table 1, and the conical discharge port 10 corresponds to the lower mold forming cavity 2. When the powder feeding box 3 moves away from the lower mold forming cavity 2, the sliding roller 23 rolls out from the positioning groove 22. As the sliding roller 23 contacts the upper end of the slide rail 4, the sliding roller 23 pushes the lifting control plate 21, the lifting connecting plate 17, and the metering tube 9 to rise, thereby realizing the vertical metering of metal powder by the metering tube 9.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder molding device for processing quick-connect pipe fitting metal parts, characterized in that, The utility model relates to a pipe joint moulding platform (1) is provided with lower mould forming cavity (2) on the pipe joint moulding platform (1), and the upper level of lower mould forming cavity (2) is provided with powder feeding box (3), and powder feeding box (3) is movably arranged on pipe joint moulding platform (1) through sliding assembly, and sliding assembly includes two slide rails (4) and two slide seats (5). The utility model relates to a pipe joint moulding platform (1) is provided with lower mould forming cavity (2) on the pipe joint moulding platform (1), and the upper level of lower mould forming cavity (2) is provided with powder feeding box (3), and powder feeding box (3) is movably arranged on pipe joint moulding platform (1) through sliding assembly, and sliding assembly includes two slide rails (4) and two slide seats (5). Quantitative feeding assembly is arranged in powder feeding box (3), and quantitative feeding assembly includes temporary storage box (7), combination sleeve (8), quantitative tube (9) and center rod (12), quantitative tube (9) and center rod (12) are inserted into combination sleeve (8), the lower end of quantitative tube (9) is provided with conical feeding port (10), and the diameter of the lower end of conical feeding port (10) is less than the diameter of lower mould forming cavity (2). Switching control assembly is arranged in two slide seats (5), and switching control assembly includes two lifting control plates (21), and two lifting control plates (21) are connected with the two sides of quantitative tube (9) respectively. Two slide rails (4) are horizontally arranged above pipe joint moulding platform (1) respectively, two slide rails (4) are located on the two sides of lower mould forming cavity (2) respectively, two slide seats (5) are horizontally arranged on the two lower ends of powder feeding box (3) respectively, and two slide seats (5) are slidably connected with two slide rails (4) respectively.

2. A powder press device for processing a metal piece of a quick coupling according to claim 1, characterized in that: The lower end of temporary storage box (7) is provided with combination hole in the center of the lower end of the center of separation mounting plate (6), combination sleeve (8) is inserted into combination hole through flange and bolt, and the diameter of combination sleeve (8) is same with the diameter of combination hole.

3. A powder press device for processing a metal piece of a quick coupling according to claim 2, characterized in that: The upper end of quantitative tube (9) is inserted into the lower end of combination sleeve (8), the outer periphery of quantitative tube (9) is in contact with the inner periphery of combination sleeve (8), the diameter of the lower end of conical feeding port (10) is less than the diameter of the upper end, the lower end of quantitative tube (9) is vertically provided with contact sleeve (16), the lower end of contact sleeve (16) is in contact with the upper end of pipe joint moulding platform (1), and the diameter of contact sleeve (16) is greater than the diameter of lower mould forming cavity (2).

4. The powder molding device for processing a metal member of a quick coupling according to claim 3, characterized in that: The lower end of the flange of combination sleeve (8) is provided with a plurality of spring guide rods (18) vertically, the outer periphery of quantitative tube (9) is horizontally provided with lifting connecting plate (17), the lower end of spring guide rod (18) is movably penetrated through lifting connecting plate (17) through constraint block, the upper end of spring guide rod (18) is horizontally provided with a round piece, and spring guide rod (18) is sleeved with downward spring (19) between the round piece and lifting connecting plate (17).

5. A powder molding apparatus for processing a metal member of a quick coupling according to claim 4, characterized in that: The upper end of combination sleeve (8) is horizontally provided with support frame (11), center rod (12) is vertically arranged in the lower end center of support frame (11), and the lower end of center rod (12) is vertically inserted into the center of quantitative tube (9).

6. A powder molding apparatus for processing a metal member of a quick coupling according to claim 5, wherein: ​ 7. A powder molding apparatus for processing a metal member of a quick coupling according to claim 6, wherein: The upper and lower sides of the center rod (12) inserted into the quantitative tube (9) are respectively provided with a second center block (15) and a first center block (13), the upper and lower ends of the first center block (13) are respectively provided with a first tapered surface, and the first tapered surface at the lower end of the first center block (13) is correspondingly arranged with the inner side surface of the tapered blanking port (10).

8. A powder moulding press for processing of metal parts of quick-coupling pipe joints according to claim 7, characterised in that: The upper end of the second center block (15) is provided with a second tapered surface, the upper end of the quantitative tube (9) is provided with a blocking ring (14), the upper and lower ends of the blocking ring (14) are respectively provided with a third inclined surface, when the third inclined surface at the lower end of the blocking ring (14) is attached to the second inclined surface of the second center block (15), the inner side surface of the tapered blanking port (10) is away from the first tapered surface at the lower end of the first center block (13).

9. A powder moulding press for processing of metal pieces of quick- coupling pipe joints according to claim 8, characterised in that: The sliding seat (5) is horizontally provided with a movable plate groove (20), one side of the movable plate groove (20) is communicated with the powder feeding box (3), the movable plate groove (20) is horizontally provided with a lifting control plate (21) through a guide rod, one side of the lifting connecting plate (17) close to the lifting control plate (21) is horizontally provided with a combined connecting sleeve (24), the center of the lifting control plate (21) is horizontally provided with a synchronous connecting rod (25) through a thread, one side of the synchronous connecting rod (25) penetrates the lifting control plate (21) and is inserted into the combined connecting sleeve (24).

10. A powder molding apparatus for processing a metal member of a quick coupling pipe joint according to claim 9, characterized in that: The upper end of the sliding rail (4) is provided with a positioning groove (22), the two side surfaces of the positioning groove (22) are provided with inclined surfaces, one side of the sliding seat (5) sleeved with the sliding rail (4) is provided with a strip-shaped groove communicated with the movable plate groove (20), one side of the lifting control plate (21) located in the strip-shaped groove is provided with a sliding roller (23), the positioning groove (22) and the lower mold forming cavity (2) are in the same plane, the quantitative tube (9) and the sliding roller (23) are in the same plane, when the sliding roller (23) is located in the center of the positioning groove (22), the quantitative tube (9) is located directly above the lower mold forming cavity (2).

Images