CN212734147U

CN212734147U - Metal powder metallurgy injection mechanism

Info

Publication number: CN212734147U
Application number: CN202020930725.1U
Authority: CN
Inventors: 郑峰
Original assignee: NINGBO GUOXING POWDER METALLUR
Current assignee: NINGBO GUOXING POWDER METALLUR
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-03-19
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a metal powder metallurgy technical field especially discloses a metal powder metallurgy injection mechanism, comprises an operation bench, the injection organism is installed to the operation panel up end, injection organism lower extreme is connected with the injection subassembly, the injection subassembly lower extreme is connected with the closing die device, the injection subassembly includes the axis of rotation, axis of rotation upper end fixedly connected with rolling gear, fixedly connected with supports the lid in the middle of the axis of rotation, it is connected with the injection lid to support the rotation of lid lower extreme, be located in the middle of the injection lid support lid lower extreme position is equipped with the through-hole, the axis of rotation passes the through-hole. The utility model provides a metallurgical injection mechanism of metal powder improves the injection subassembly, thereby avoids appearing the condition that the air fuses into in the material and influences the material and mix the effect, gets rid of the air of sneaking into in the material when making the compounding more even through increasing the puddler, and then improves the quality of product.

Description

Metal powder metallurgy injection mechanism

Technical Field

The utility model relates to a metal powder metallurgy technical field especially relates to a metal powder metallurgy injection mechanism.

Background

The powder metallurgy technology comprises the following basic process steps: firstly, metal powder and organic binder are uniformly mixed and kneaded, and then are pressed and injected into a die cavity by a powder metallurgy injection machine in a heating state for solidification and forming, and then the final product is obtained through binder removal and sintering densification. The product has the characteristics of high precision, uniform structure, excellent performance, low production cost and the like.

The existing metal powder metallurgy injection machine generally injects metal powder which is mixed and heated into a mould by utilizing a screw rod when injecting, and air is fused into a material in the injection process, so that the material mixing effect is influenced, and further, the specification parameters such as the quality, the volume, the wall thickness and the like of a formed product cannot meet the requirements.

To the above problem, the utility model provides a metallurgical injection mechanism of metal powder.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a metal powder metallurgy injection mechanism is provided, improves the injection subassembly, thereby avoids appearing the condition that the air fuses into in the material influence the material and mixes the effect, gets rid of sneaking into in the material when making the compounding more even through increasing the puddler, and then improves the quality of product.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a metallurgical injection mechanism of metal powder, includes the operation panel, the injection organism is installed to the operation panel up end, injection organism lower extreme is connected with the injection subassembly, the injection subassembly lower extreme is connected with closing die device.

The injection assembly comprises a rotating shaft, a rotating gear is fixedly connected to the upper end of the rotating shaft, a supporting cover is fixedly connected to the middle of the rotating shaft, an injection cover is rotatably connected to the lower end of the supporting cover, a through hole is formed in the middle of the injection cover and located at the lower end of the supporting cover, and the rotating shaft penetrates through the through hole.

The axis of rotation lower extreme is connected with first dwang, the first puddler of fixedly connected with in the middle of the first dwang, first dwang lower extreme are connected with the second dwang, fixedly connected with second puddler in the middle of the second dwang, second dwang lower extreme is connected with the injection pole, the injection pole lateral wall is equipped with spiral helicine injection way, the injection way extends to the injection pole tail end from second dwang lower extreme always.

Preferably, the lower end of the injection cover is connected with an injection tube, the injection tube is in an inverted cone shape, the lower end of the injection tube is connected with a transition plate, the lower end of the transition plate is connected with an injection tube, the inner diameter of the injection tube is matched with the overall diameter of the injection rod and the injection passage, and the lower end of the injection tube is connected with the mold closing device.

Preferably, the first stirring rod is divided into two sub-rods, the distance between the two sub-rods is gradually reduced from the position close to one end of the injection cover to the position far away from one end of the injection cover, the second stirring rod is consistent with the first stirring rod in structure, the distance between the two sub-rods of the second stirring rod is integrally smaller than the distance between the two sub-rods of the first stirring rod, and the first stirring rod and the second stirring rod are arranged in a staggered mode.

Preferably, a rotating motor is installed on one side of the upper end face of the operating platform, the upper end of the rotating motor is connected with a rotating shaft through a coupler, a driving gear is fixedly connected to the upper end of the rotating shaft, and a transmission crawler belt is connected between the driving gear and the rotating gear.

Preferably, the upper end of the injection cover is provided with four transition holes, and an exhaust pipe is communicated between the transition holes at the upper end of the injection cover.

Preferably, the lower end of the injection machine body is provided with a transition pipe matched with the transition hole.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model provides a metallurgical injection mechanism of metal powder improves the injection subassembly, thereby avoids appearing the condition that the air fuses to influence the material and mixes the effect in the material, gets rid of the air of sneaking into in the material when making the compounding more even through increasing the puddler, and then improves the quality of product.

2. The utility model provides a metallurgical injection mechanism of metal powder, wherein the special construction of first puddler and second puddler, the cooperation that the injection pole and injection were said in addition makes the material of mixing more even, gets rid of the air of sneaking into in the material simultaneously, makes the air discharge from the blast pipe to improve the quality of product.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the injection assembly of the present invention.

Wherein: the injection molding machine comprises a working table 1, an injection machine body 2, a transition pipe 20, an injection assembly 3, a rotating shaft 30, a rotating gear 31, a rotating motor 311, a rotating shaft 312, a driving gear 313, a driving track 314, a supporting cover 32, an injection cover 33, an injection tube 331, a transition plate 332, an injection tube 333, a transition hole 334, an exhaust pipe 335, a first rotating rod 34, a first stirring rod 35, a sub-rod 350, a second rotating rod 36, a second stirring rod 37, an injection rod 38, an injection channel 39 and a mold closing device 4.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are provided to illustrate the present invention and are not intended to limit the scope of the invention.

Referring to fig. 1, the metal powder metallurgy injection mechanism comprises an operation table 1, wherein an injection machine body 2 is installed on the upper end surface of the operation table 1, an injection assembly 3 is connected to the lower end of the injection machine body 2, and a mold closing device 4 is connected to the lower end of the injection assembly 3; during injection, the mixed and heated material is firstly pushed into the injection assembly 3 from the injection machine body 2 by a screw, and then enters the die assembly for molding after passing through the injection assembly 3.

Referring to fig. 2, the injection assembly 3 includes a rotation shaft 30, a support cap 32 is fixedly connected to the middle of the rotation shaft 30, a lower end of the support cap 32 is rotatably connected to an injection cap 33, four transition holes 334 are formed in an upper end of the injection cap 33, an exhaust pipe 335 is communicated between the transition holes 334 at an upper end of the injection cap 33, a transition pipe 20 matched with the transition holes 334 is formed in a lower end of the injection machine body 2, the transition pipe 20 is clamped with the transition holes 334, and the screw pushes the mixed and heated material into the injection assembly 3 from the injection machine body 2 through the transition pipe 20.

A rotating motor 311 is installed on one side of the upper end face of the operating platform 1, the upper end of the rotating motor 311 is connected with a rotating shaft 312 through a coupling, a driving gear 313 is fixedly connected to the upper end of the rotating shaft 312, a rotating gear 31 is fixedly connected to the upper end of the rotating shaft 30, and a transmission crawler 314 is connected between the driving gear 313 and the rotating gear 31.

The middle of the injection cover 33 is provided with a through hole at the lower end of the support cover 32, the rotating shaft 30 penetrates through the through hole, the lower end of the rotating shaft 30 is connected with a first rotating rod 34, the middle of the first rotating rod 34 is fixedly connected with a first stirring rod 35, the lower end of the first rotating rod 34 is connected with a second rotating rod 36, the middle of the second rotating rod 36 is fixedly connected with a second stirring rod 37, the lower end of the second rotating rod 36 is connected with an injection rod 38, the side wall of the injection rod 38 is provided with a spiral injection channel 39, and the injection channel 39 extends from the lower end of the second rotating rod.

The first stirring rod 35 is divided into two sub-rods 350, the distance between the two sub-rods 350 is gradually reduced from one end close to the injection cover 33 to one end far away from the injection cover 33, the second stirring rod 37 is consistent with the first stirring rod 35 in structure, the distance between the two sub-rods 350 of the second stirring rod 37 is integrally smaller than the distance between the two sub-rods 350 of the first stirring rod 35, and the first stirring rod 35 and the second stirring rod 37 are arranged in a staggered mode.

The lower end of the injection cover 33 is connected with an injection tube 331, the injection tube 331 is in an inverted cone shape, the lower end of the injection tube 331 is connected with a transition plate 332, the lower end of the transition plate 332 is connected with an injection tube 333, the inner diameter of the injection tube 333 is matched with the integral diameter of the injection rod 38 and the injection channel 39, and the lower end of the injection tube 333 is connected with the mold closing device 4.

When the injection machine works specifically, the injection machine body 2 is opened, the rotating motor 311 is opened, when the materials are pushed into the injection tube 331 through the transition tube 20, the motor drives the driving gear 313 to rotate, the driving gear 313 drives the rotating gear 31 to rotate, the rotating gear 31 drives the rotating shaft 30, the first rotating rod 34 and the second rotating rod 36 to rotate, the corresponding first stirring rod 35 and the second stirring rod 37 rotate together, the special structures of the first stirring rod 35 and the second stirring rod 37 can enable the materials to be mixed more uniformly, the rotating frequency of the rotating motor 311 is controlled well, the first and second agitating

bars

35 and 37 are made to cooperate with each other so that air in the material is exhausted from the exhaust pipe 335, and the cooperation of the injection bar 38 and the injection passage 39 makes the mixed material flow down to the mold clamping unit 4 along the injection passage 39 and the injection pipe 333 uniformly and smoothly, thereby improving the quality of the product.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A metal powder metallurgy injection mechanism, includes operation panel (1), its characterized in that: an injection machine body (2) is installed on the upper end face of the operating platform (1), an injection assembly (3) is connected to the lower end of the injection machine body (2), and a mold closing device (4) is connected to the lower end of the injection assembly (3);

the injection assembly (3) comprises a rotating shaft (30), a rotating gear (31) is fixedly connected to the upper end of the rotating shaft (30), a supporting cover (32) is fixedly connected to the middle of the rotating shaft (30), an injection cover (33) is rotatably connected to the lower end of the supporting cover (32), a through hole is formed in the middle of the injection cover (33) and is located at the lower end of the supporting cover (32), and the rotating shaft (30) penetrates through the through hole;

the utility model discloses a syringe, including axis of rotation (30), axis of rotation (30) lower extreme is connected with first dwang (34), the first puddler of fixedly connected with (35) in the middle of first dwang (34), and first dwang (34) lower extreme is connected with second dwang (36), fixedly connected with second puddler (37) in the middle of second dwang (36), second dwang (36) lower extreme is connected with injection rod (38), injection rod (38) lateral wall is equipped with spiral helicine injection way (39), injection way (39) extend to injection rod (38) tail end from second dwang (36) lower extreme always.

2. A metal powder metallurgy injection mechanism according to claim 1, wherein: the lower end of the injection cover (33) is connected with an injection tube (331), the injection tube (331) is in an inverted cone shape, the lower end of the injection tube (331) is connected with a transition plate (332), the lower end of the transition plate (332) is connected with an injection tube (333), the inner diameter of the injection tube (333) is matched with the integral diameter of the injection rod (38) and the injection channel (39), and the lower end of the injection tube (333) is connected with the mold closing device (4).

3. A metal powder metallurgy injection mechanism according to claim 1, wherein: first puddler (35) divide into two sub-poles (350), and the distance between two sub-poles (350) is from being close to injection lid (33) one end is to keeping away from injection lid (33) one end reduces gradually, second puddler (37) with first puddler (35) structure is unanimous, the distance between two sub-poles (350) of second puddler (37) is whole to be less than the distance between two sub-poles (350) of first puddler (35), first puddler (35) with second puddler (37) crisscross setting.

4. A metal powder metallurgy injection mechanism according to claim 1, wherein: rotating motor (311) is installed to operation panel (1) up end one side, rotating motor (311) upper end has pivot (312) through the coupling joint, pivot (312) upper end fixedly connected with driving gear (313), driving gear (313) with be connected with transmission track (314) between rotating gear (31).

5. A metal powder metallurgy injection mechanism according to claim 1, wherein: four transition holes (334) are formed in the upper end of the injection cover (33), and an exhaust pipe (335) is communicated between the transition holes (334) at the upper end of the injection cover (33).

6. A metal powder metallurgy injection mechanism according to claim 5, wherein: the lower end of the injection machine body (2) is provided with a transition pipe (20) matched with the transition hole (334).