Powder mould pressing device for machining quick-insertion type pipe joint metal piece

Abstract

The invention relates to the field of powder metallurgy, in particular to a powder mold pressing device for machining a quick-insertion type pipe joint metal piece, which comprises a pipe joint mold pressing table, a quantitative blanking assembly and a switching control assembly, a lower mold forming cavity is arranged on the pipe joint mold pressing table, and a powder feeding box is horizontally arranged above the lower mold forming cavity; when the device is used, the powder feeding box can horizontally and stably slide above the pipe joint mold pressing table through the sliding assembly, when metal powder filling needs to be carried out on the lower mold forming cavity, quantitative discharging can be carried out on the interior of the lower mold forming cavity through the quantitative discharging assembly, and the powder feeding box can be used for feeding powder into the lower mold forming cavity. The powder feeding box is arranged, excessive metal powder waste is avoided, the metal powder in the lower die forming cavity can be evenly vibrated in cooperation with vibration of the powder feeding box, the compression molding quality is improved, in addition, in cooperation with the switching control assembly, quantitative feeding of the quantitative discharging assembly can be completed in the moving process of the powder feeding box, operation is easy, worry is saved, and convenience is achieved.

Description

Technical Field

[0001] The invention relates to the field of powder metallurgy, in particular to a powder molding device for processing quick-insert pipe joint metal parts. Background Art

[0002] Pipe joints are devices used to connect pipes. Powder metallurgy molding equipment for pipe joints is a special equipment designed for powder metallurgy process. It is used to press metal powder through a mold to form pipe joint blanks. Its core consists of a mold system (including an upper mold, a lower mold, and a concave mold), a pressurizing mechanism, a powder feeding assembly, and a demoulding device. During use, metal powder is filled into the mold cavity according to a certain quantity, and the pressurizing mechanism applies a preset pressure through hydraulic or mechanical transmission to densify the powder to form a pipe joint blank with a certain shape and strength. Finally, the blank is taken out by the demoulding mechanism, and then the blank is processed by the sintering device. In the existing metal powder feeding operation, a box body with an opening at the bottom is mostly used, and the box body is filled with metal powder. When the metal powder feeding box reaches the molding cavity of the lower mold, the powder fills the molding cavity, and the upper mold presses down to complete the molding. Since 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 when feeding powder, which wastes costs and is inconvenient to clean. In addition, when the powder naturally fills the molding cavity, the distribution uniformity of the powder varies greatly, and thus the quality of the blank after molding varies. Summary of the Invention

[0003] The object of the present invention is to provide a powder molding device for processing quick-connect pipe joint metal parts to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a powder molding device for processing quick-insert pipe joint metal parts, comprising: A pipe joint molding platform, wherein the pipe joint molding platform is provided with a lower mold forming cavity, a powder feeding box is horizontally provided above the lower mold forming cavity, and the powder feeding box is movably arranged on the pipe joint molding platform through a sliding assembly, and the sliding assembly includes two slide rails and two slide seats; A quantitative blanking assembly is provided in the powder feeding box, and includes a temporary storage box, a coupling sleeve, a quantitative tube and a center rod. The quantitative tube and the center rod are both inserted into the coupling sleeve. A tapered blanking opening is provided at the lower end of the quantitative tube, and the diameter of the lower end of the tapered blanking opening is smaller than the diameter of the lower die forming cavity. The switching control component is arranged in the two slides, and the switching control component includes two lifting control plates, and the two lifting control plates are respectively connected to the two sides of the quantitative tube.

[0005] Preferably, the two slide rails are horizontally arranged above the pipe joint molding platform, the two slide rails are respectively located on both sides of the lower mold molding cavity, the two slide seats are horizontally distributed at the lower ends of both sides of the powder feeding box, and the two slide seats are slidably connected to the two slide rails.

[0006] Preferably, a partition mounting plate is horizontally provided in the powder delivery box, a temporary storage box is provided at the center of the upper end of the partition mounting plate, a combination hole is provided at the lower end of the temporary storage box through the center of the partition mounting plate, a combining sleeve is inserted into the combination hole through a flange and a bolt, and the diameter of the combining sleeve is the same as the diameter of the combination hole.

[0007] Preferably, the upper end of the metering tube is inserted into the lower end of the combining sleeve, the outer circumference of the metering tube is in contact with the inner circumference of the combining sleeve, the diameter of the lower end of the tapered blanking port is smaller than the diameter of the upper end, and a contact sleeve is vertically provided at the lower end of the metering tube, the lower end of the contact sleeve is in contact with the upper end of the pipe joint molding platform, and the diameter of the contact sleeve is larger than the diameter of the lower mold molding cavity.

[0008] Preferably, a plurality of spring guide rods are vertically provided at the lower end of the flange of the coupling sleeve, a lifting connecting plate is horizontally provided on the outer peripheral side of the quantitative tube, the lower end of the spring guide rod is movably passed through the lifting connecting plate through the constraint block, and a circular piece is horizontally provided at the upper end of the spring guide rod, and a downward pressure spring is sleeved on the spring guide rod between the circular piece and the lifting connecting plate.

[0009] Preferably, a support frame is horizontally provided at the upper end of the combined sleeve, a center rod is vertically provided at the center of the lower end of the support frame, and the lower end of the center rod is vertically inserted into the center of the quantitative tube.

[0010] Preferably, a second center block and a first center block are respectively provided on the upper and lower sides of the center rod inserted into the quantitative tube, and the upper and lower ends of the first center block are both provided with a first conical surface, and the first conical surface at the lower end of the first center block is arranged corresponding to the inner side surface of the conical blanking port.

[0011] Preferably, a second conical surface is provided at the upper end of the second center block, a sealing ring is provided at the inner upper end of the quantitative tube, and third inclined surfaces are provided at the upper and lower ends of the sealing ring. When the third inclined surface at the lower end of the sealing ring is in contact with the second inclined surface of the second center block, the inner side surface of the conical blanking port is away from the first conical surface at the lower end of the first center block.

[0012] Preferably, a movable plate groove is horizontally opened in the slide seat, one side of the movable plate groove is connected to the powder feeding box, a lifting control plate is horizontally inserted in the movable plate groove through a guide rod, and a combination connecting sleeve is horizontally provided on the side of the lifting connecting plate close to the lifting control plate. A synchronous connecting rod is horizontally inserted through a thread in the center of the lifting control plate, and one side of the synchronous connecting rod passes through the lifting control plate and is inserted into the combination connecting sleeve.

[0013] Preferably, a positioning groove is provided at the upper end of the slide rail, and both side surfaces in the positioning groove are inclined surfaces. A strip groove is provided on one side of the slide seat that is connected to the slide rail and is connected to the movable plate groove. The lifting control plate is located on one side of the strip groove and is provided with a sliding roller. The positioning groove and the lower mold forming cavity are in the same plane, and the metering tube and the sliding roller are in 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.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When the device is in use, the powder feeding box can slide horizontally and stably above the pipe joint molding table through the sliding component. When the metal powder needs to be filled in the lower mold molding cavity, the quantitative blanking component can be used to perform quantitative blanking in the lower mold molding cavity to avoid excessive waste of metal powder. In combination with the vibration of the powder feeding box, the metal powder in the lower mold molding cavity can be vibrated and evenly distributed to improve the quality of molding. In addition, in combination with the switching control component, the quantitative delivery of the quantitative blanking component can be completed during the movement of the powder feeding box. The operation is simple, worry-free and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of a partial side sectional structure of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of part A; Figure 4 For the present invention Figure 3 Schematic diagram of part B; Figure 5 For the present invention Figure 3 Schematic diagram of the C part; Figure 6 This is a schematic diagram of the slide rail arrangement structure of the present invention; Figure 7 This is a schematic diagram of the installation structure of the quantitative tube of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the D part; Figure 9 This is a schematic diagram of the structure of the temporary storage box of the present invention; Figure 10 This is a schematic diagram of the cooperation between the lifting control plate and the metering tube of the present invention.

[0016] In the figure: pipe joint molding table 1, lower mold molding cavity 2, powder feeding box 3, slide rail 4, slide seat 5, partition mounting plate 6, temporary storage box 7, combining sleeve 8, quantitative tube 9, tapered blanking port 10, support frame 11, center rod 12, first center block 13, sealing ring 14, second center block 15, contact sleeve 16, lifting connecting plate 17, spring guide rod 18, downward pressure spring 19, movable plate slot 20, lifting control plate 21, positioning groove 22, sliding roller 23, combined connecting sleeve 24, synchronous connecting rod 25, vibration module 26. DETAILED DESCRIPTION

[0017] In order to clearly and completely describe the objectives and technical solutions of the present invention and make the advantages more clearly understood, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1-10 , the present invention provides the following technical solutions: When the dies are in the air, the powder feeding box 3 is lifted up and the powder feeding box 3 is lifted up, and the powder feeding box 3 is lifted up and the powder feeding box 3 is lifted up.

[0019] A quantitative blanking assembly is provided to quantitatively fill the metal powder in the lower die forming cavity 2. The quantitative blanking assembly is provided in the powder feeding box 3. The quantitative blanking assembly includes a temporary storage box 7, a coupling sleeve 8, a quantitative tube 9 and a center rod 12. The quantitative tube 9 and the center rod 12 are both plugged into the coupling sleeve 8. The lower end of the quantitative tube 9 is provided with a tapered blanking port 10, and the lower end diameter of the tapered blanking port 10 is smaller than the diameter of the lower die forming cavity 2. A partition mounting plate 6 is horizontally provided in the powder feeding box 3. The temporary storage box 7 is provided at the center of the upper end of the partition mounting plate 6. The lower end of the temporary storage box 7 is provided with a combination hole through the center of the partition mounting plate 6. The coupling sleeve 8 is plugged into the combination hole through a flange and a bolt. , and the diameter of the combining sleeve 8 is the same as the diameter of the combination hole, the upper end of the quantitative tube 9 is inserted into the lower end of the combining sleeve 8, the outer peripheral side of the quantitative tube 9 is in contact with the inner peripheral side of the combining sleeve 8, the lower end diameter of the tapered blanking port 10 is smaller than the upper end diameter, and a contact sleeve 16 is vertically provided at the lower end of the quantitative tube 9. The lower end of the contact sleeve 16 is in contact with the upper end of the pipe joint molding platform 1, and the diameter of the contact sleeve 16 is larger than the diameter of the lower mold forming cavity 2. A powder conveying pipe is provided above the powder feeding box 3 and connected to the temporary storage box 7. The powder in the temporary storage box 7 can fall into the quantitative tube 9 through the combining sleeve 8, and then fall into the lower mold forming cavity 2 accurately under the closing action of the tapered blanking port 10.

[0020] A plurality of spring guide rods 18 are vertically provided at the lower end of the flange plate of the combined sleeve 8, and a lifting connecting plate 17 is horizontally provided on the outer peripheral side of the metering tube 9. The lower end of the spring guide rod 18 is movably penetrated through the lifting connecting plate 17 through the constraint block, and a disc is horizontally provided at the upper end of the spring guide rod 18. The spring guide rod 18 is located between the disc and the lifting connecting plate 17 and is sleeved with a downward pressure spring 19. A plurality of vibration modules 26 are provided at the upper end of the partition mounting plate 6. The plurality of vibration modules 26 can prevent the metal powder from hanging on the wall. At the same time, the metering tube 9 can elastically press the lifting connecting plate 17 through 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 tapered blanking port 10 corresponds to the lower mold molding cavity 2, the contact sleeve 16 cooperates with the vibration of the vibration module 26 to vibrate the metal powder in the lower mold molding cavity 2 evenly, thereby avoiding large differences in gaps between powders.

[0021] A support frame 11 is horizontally provided at the upper end of the combined sleeve 8, a center rod 12 is vertically provided at the center of the lower end of the support frame 11, and the lower end of the center rod 12 is vertically inserted into the center of the quantitative tube 9, and a second center block 15 and a first center block 13 are respectively provided on the upper and lower sides of the center rod 12 inserted into the quantitative tube 9. The upper and lower ends of the first center block 13 are provided with a first conical surface, and the first conical surface of the lower end of the first center block 13 is provided corresponding to the inner side surface of the tapered blanking port 10, the upper end of the second center block 15 is provided with a second conical surface, and the upper end of the quantitative tube 9 is provided with a sealing ring 14, and the upper and lower ends of the sealing ring 14 are provided with a third inclined surface. When the third inclined surface of the lower end of the sealing ring 14 is aligned with the second center block 15, the sealing ring 14 is provided with a third inclined surface. When the second inclined surface of the core block 15 fits together, the inner side surface of the conical blanking port 10 is away from the first conical surface of the lower end of the first center block 13. When the metering tube 9 is lifted, the inner side surface of the conical blanking port 10 is abutted and sealed with 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, and the metal powder in the temporary storage box 7 falls from the combining sleeve 8 into the metering tube 9. When the metering tube 9 is lowered by the downward pressure spring 19, the contact sleeve 16 contacts the upper end of the pipe joint molding table 1, the sealing ring 14 and the center rod 12 are combined and sealed, and the quantitative metal powder in the metering tube 9 falls into the lower mold molding cavity 2 from the gap between the conical blanking port 10 and the first center block 13.

[0022] The second embodiment: On the basis of the first embodiment, a switching control component is set to control the up and down movement of the quantitative tube 9. The switching control component is arranged in the two slides 5. The switching control component includes two lifting control plates 21. The two lifting control plates 21 are respectively connected to the two sides of the quantitative tube 9. A movable plate slot 20 is horizontally opened in the slide 5. One side of the movable plate slot 20 is connected to the powder feeding box 3. A lifting control plate 21 is horizontally inserted in the movable plate slot 20 through a guide rod. A combination connecting sleeve 24 is horizontally provided on the side of the lifting connecting plate 17 close to the lifting control plate 21. A synchronous connecting rod 25 is inserted into the center of the lifting control plate 21 horizontally through a thread. One side of the synchronous connecting rod 25 penetrates the lifting control plate 21 and is inserted into the combination connecting sleeve 24. The lifting control plate 21 can move up and down along the guide rod in the movable plate slot 20. When the lifting control plate 21 is active, 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. The upper end of the slide rail 4 is provided with a positioning groove 22, and both sides of the positioning groove 22 are inclined surfaces. The side of the slide seat 5 sleeved on the slide rail 4 is connected to the movable plate groove 20 and has a strip groove. The lifting control plate 21 is located on one side of the strip groove and is provided with a sliding roller 23. The positioning groove 22 and the lower mold forming cavity 2 are in the same plane, and 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. 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 pressure spring 19. At this time, the lifting connecting plate 17, the lifting control plate 21 and the sliding roller 23 descend at the same time. At this time, the contact sleeve 16 contacts the pipe joint molding table 1, and the tapered blanking port 10 corresponds to the lower mold forming cavity 2. When the powder feeding box 3 is away from the lower mold forming cavity 2, the sliding roller 23 rolls out of 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 quantitative tube 9 to rise, thereby realizing the quantitative conveying of metal powder by the quantitative tube 9.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A powder molding device for processing quick-connect pipe joint metal parts, characterized in that: include: A pipe joint molding platform (1), wherein a lower mold forming cavity (2) is provided on the pipe joint molding platform (1), a powder feeding box (3) is horizontally provided above the lower mold forming cavity (2), and the powder feeding box (3) is movably arranged on the pipe joint molding platform (1) via a sliding assembly, and the sliding assembly includes two slide rails (4) and two slide seats (5); A quantitative blanking assembly is provided in a powder feeding box (3), and comprises a temporary storage box (7), a coupling sleeve (8), a quantitative tube (9) and a center rod (12). The quantitative tube (9) and the center rod (12) are both plugged into the coupling sleeve (8). A conical blanking opening (10) is provided at the lower end of the quantitative tube (9), and the diameter of the lower end of the conical blanking opening (10) is smaller than the diameter of the lower die forming cavity (2); A switching control component is provided in the two slides (5), and the switching control component comprises two lifting control plates (21), and the two lifting control plates (21) are respectively connected to two sides of the quantitative tube (9).

2. A powder molding device for processing quick-connect pipe joint metal parts according to claim 1, characterized in that: The two slide rails (4) are respectively arranged horizontally above the pipe joint molding platform (1), and the two slide rails (4) are respectively located on both sides of the lower mold molding cavity (2). The two slide seats (5) are distributed and arranged horizontally at the lower ends of both sides of the powder feeding box (3), and the two slide seats (5) are respectively slidably connected to the two slide rails (4).

3. The powder molding device for processing quick-connect pipe joint metal parts according to claim 2, characterized in that: A partition mounting plate (6) is horizontally provided in the powder delivery box (3), a temporary storage box (7) is provided at the center of the upper end of the partition mounting plate (6), a combination hole is provided at the lower end of the temporary storage box (7) through the center of the partition mounting plate (6), a combination sleeve (8) is inserted into the combination hole through a flange and bolts, and the diameter of the combination sleeve (8) is the same as the diameter of the combination hole.

4. A powder molding device for processing quick-connect pipe joint metal parts according to claim 3, characterized in that: The upper end of the metering tube (9) is plugged into the lower end of the coupling sleeve (8), the outer peripheral side of the metering tube (9) contacts the inner peripheral side of the coupling sleeve (8), the lower end diameter of the tapered blanking port (10) is smaller than the upper end diameter, a contact sleeve (16) is vertically provided at the lower end of the metering tube (9), the lower end of the contact sleeve (16) contacts the upper end of the pipe joint molding platform (1), and the diameter of the contact sleeve (16) is larger than the diameter of the lower mold molding cavity (2).

5. The powder molding device for processing quick-connect pipe joint metal parts according to claim 4, characterized in that: The lower end of the flange of the coupling sleeve (8) is provided with a plurality of spring guide rods (18) vertically, and the outer peripheral side of the quantitative tube (9) is provided with a lifting connecting plate (17) horizontally. The lower end of the spring guide rod (18) is movably penetrated through the lifting connecting plate (17) through the constraint block, and the upper end of the spring guide rod (18) is provided with a circular piece horizontally. The spring guide rod (18) is located between the circular piece and the lifting connecting plate (17) and is sleeved with a downward pressure spring (19).

6. The powder molding device for processing quick-connect pipe joint metal parts according to claim 5, characterized in that: A support frame (11) is horizontally provided at the upper end of the combined sleeve (8), a center rod (12) is vertically provided at the center of the lower end of the support frame (11), and the lower end of the center rod (12) is vertically inserted into the center of the quantitative tube (9).

7. The powder molding device for processing quick-connect pipe joint metal parts according to claim 6, characterized in that: The center rod (12) is inserted into the quantitative tube (9) and is provided with a second center block (15) and a first center block (13) on the upper and lower sides respectively. The upper and lower ends of the first center block (13) are both provided with a first conical surface, and the first conical surface at the lower end of the first center block (13) is arranged corresponding to the inner side surface of the conical blanking port (10).

8. The powder molding device for processing quick-connect pipe joint metal parts according to claim 7, characterized in that: A second conical surface is provided at the upper end of the second center block (15), a sealing ring (14) is provided at the inner upper end of the metering tube (9), and third inclined surfaces are provided at the upper and lower ends of the sealing ring (14). When the third inclined surface at the lower end of the sealing ring (14) is in contact with the second inclined surface of the second center block (15), the inner side surface of the conical blanking port (10) is away from the first conical surface at the lower end of the first center block (13).

9. The powder molding device for processing quick-connect pipe joint metal parts according to claim 8, characterized in that: A movable plate slot (20) is horizontally provided in the slide seat (5), one side of the movable plate slot (20) is connected to the powder feeding box (3), a lifting control plate (21) is horizontally inserted in the movable plate slot (20) through a guide rod, a combination connecting sleeve (24) is horizontally provided on one side of the lifting connecting plate (17) close to the lifting control plate (21), a synchronous connecting rod (25) is horizontally inserted through the center of the lifting control plate (21) through a thread, and one side of the synchronous connecting rod (25) penetrates the lifting control plate (21) and is inserted into the combination connecting sleeve (24).

10. The powder molding device for processing quick-connect pipe joint metal parts according to claim 9, characterized in that: The upper end of the slide rail (4) is provided with a positioning groove (22), and both side surfaces of the positioning groove (22) are inclined surfaces. A strip groove is provided on one side of the slide seat (5) that is connected to the slide rail (4) and is connected to the movable plate groove (20). A sliding roller (23) is provided on one side of the lifting control plate (21) located at the strip groove. The positioning groove (22) and the lower mold forming cavity (2) are in the same plane, and 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).

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