CN115519124A

CN115519124A - Injection molding machine for metal powder melt injection

Info

Publication number: CN115519124A
Application number: CN202211107811.2A
Authority: CN
Inventors: 杨美
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-12-27

Abstract

The invention discloses an injection molding machine for metal powder melt injection, which comprises an injection molding table, wherein a Z-direction guide frame, a powder feeding cavity and a heating reaction kettle are arranged on the injection molding table, the heating reaction kettle is positioned right below the powder feeding cavity, the powder feeding cavity is connected with the heating reaction kettle through a material conveying pipeline, an injection molding rack is fixedly arranged on the Z-direction guide frame, an injection molding cylinder body is arranged on the injection molding rack, and the heating reaction kettle is connected with the injection molding cylinder body through a discharge bent pipe.

Description

Injection molding machine for metal powder melt injection

Technical Field

The invention belongs to the technical field of injection molding machines, and particularly relates to an injection molding machine for metal powder melt injection.

Background

The injection molding is to utilize the thermophysical property of plastics, plasticize, melt and homogenize the materials, inject the materials into a cavity of a mold, and perform pressure maintaining, cooling, solidification and shaping on the molten materials through the cavity to obtain a finished product. In order to obtain a blank with high density, high strength and good uniformity in a partial injection molding process, metal powder is generally added into a melt to prepare a slurry with low relative viscosity and high solid volume fraction, and then an organic monomer in the slurry is polymerized to solidify the slurry in situ.

For example, patent application No. 20191017119 discloses an injection molding machine for metal powder melt injection, which comprises a frame, a mold closing system, an injection system and a control system, wherein the frame is used for realizing the opening and closing of a mold arranged on the injection molding machine; the injection molding device is used for injecting a molten material into a cavity of a mold and comprises a plasticizing component, a first injection screw and a second injection screw, wherein the plasticizing component comprises a material barrel and an injection screw arranged in the material barrel; and the injection screw is connected with the die closing system and the injection system and used for controlling the opening and closing of a die of the die closing system and controlling the injection screw to do pulse type rotation and pulse type axial reciprocating motion in the charging barrel during injection. Through setting up control system control injection screw and making pulsed rotation and pulsed axial reciprocating motion in the feed cylinder when injecting, can make free volume increase, the mutual separation effect between the macromolecule strengthen in the metal powder melt in the injection process, promote the unwrapping of macromolecular chain, chain segment to reduce the viscosity and the elasticity of metal powder melt, strengthen mobility, but current injection molding machine still has following not enoughly at the in-process of moulding plastics that adds metal powder:

1. when the existing injection molding machine is added with metal powder, the control of the amount of the metal powder is inconvenient, the metal powder is usually added manually, and the added metal powder is easy to agglomerate;

2. in the injection molding process of the existing injection molding machine, the injection molding slurry is generally integrally introduced into an injection molding cylinder cavity, and injection molding is finished through the injection molding cylinder cavity, so that excess material in the injection molding cylinder cavity is easily caused, and the waste of the injection molding slurry is caused;

3. the existing injection molding machine is easy to cause injection molding slurry to be heated unevenly in an injection mold in the injection molding process, the slurry at the bottom of the injection mold is cooled quickly, and the injection molding quality is influenced.

Disclosure of Invention

The invention aims to provide an injection molding machine for injecting molten metal powder, wherein a powder feeding cavity and a heating reaction kettle are separately arranged, injection molding slurry is heated through the heating reaction kettle, powder is guided into the powder feeding cavity, grinding balls are driven to rotate through a fifth motor, the metal powder is ground and crushed under the grinding action of the grinding balls and a V-shaped grinding cylinder, the precision of metal powder grinding is ensured, and a stirring blade is driven by a rotating shaft to stir the powder in the powder feeding cavity, so that the caking of the metal powder is effectively prevented, the quality of the metal powder is effectively ensured, and the mixing quality of the injection molding slurry is improved; according to the invention, the powder feeding cavity and the heating reaction kettle are connected through the material conveying pipeline, namely when metal powder is fed, the material in the powder feeding cavity automatically flows into the heating reaction kettle by opening the material conveying pipeline, and hot steam in the heating reaction kettle can be effectively prevented from entering the powder feeding cavity through the control valve on the material conveying pipeline, so that the material in the powder feeding cavity is effectively protected; according to the invention, the heating reaction kettle and the injection cylinder body are designed in a split manner, the injection slurry is heated through the heating reaction kettle, in the injection molding process, the screw rod is driven by the motor to rotate in four directions, the screw rod drives the screw seat to move upwards, so that the screw seat drives the lower pressing plate and the injection piston of the injection cylinder body to lift upwards, and the injection cylinder body forms negative pressure to suck the injection slurry in the heating reaction kettle, thereby realizing the pouring of the injection cylinder body, having strong practicability, being capable of controlling the suction amount of the injection cylinder body according to the amount of the injection slurry, having high flexibility, and being capable of effectively saving raw materials; according to the invention, the heating plate is arranged on the injection molding table, the bottom of the injection mold is heated through the heating plate, and the injection mold is insulated through the insulation boards on the four clamping jaws of the four-jaw chuck, so that the problem that the plastic slurry which is poured first is cooled in the injection mold first is effectively avoided, the slurry in the injection mold is synchronously cooled, and the pouring quality is improved; according to the invention, the early warning tank with the transparent structure is arranged on the discharge elbow pipe through the detection pipeline, and the plastic slurry entering the injection cylinder body is checked in advance through the early warning tank, so that the quality of the injection slurry entering the injection cylinder body can be effectively ensured, and the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an injection molding machine for injection of metal powder melt, includes the platform of moulding plastics, be provided with heating plate and four-jaw chuck on the mesa of the platform of moulding plastics, the heating plate is located the central point that the mesa intermediate position of the platform of moulding plastics is located four jack catchs of four-jaw chuck simultaneously and puts, the mesa both sides of the platform of moulding plastics are provided with U template frame one and U template frame two, be connected with the crossbeam through the fixed plate between U template frame one and the U template frame two, just be connected with nut seat two through the fixed plate at both ends on the front of crossbeam, nut seat two are provided with Z to guide frame, powder material loading chamber and heating reaction cauldron side by side on openly, heating reaction cauldron is located powder material loading chamber under, powder material loading chamber is connected with heating reaction cauldron through conveying pipeline, the last control valve that is provided with of conveying pipeline, the fixed frame of moulding plastics that is provided with of Z to the guide frame, it moulds plastics to be provided with the cylinder body to mould plastics in the frame, heating reaction cauldron with mould plastics between the cylinder body and be connected through the return bend, be connected with the early warning jar through the detection pipeline on the return bend.

As a still further scheme of the invention: the powder feeding device comprises a powder feeding cavity, a powder feeding device and a grinding ball, wherein a V-shaped grinding cylinder with a horn-shaped structure is arranged inside the powder feeding cavity, a supporting frame is arranged on the external top surface of the powder feeding cavity, the supporting frame is of a cuboid cavity structure with an uncovered bottom surface, a motor mounting plate is slidably connected inside the supporting frame, an air cylinder is fixedly arranged on the external top surface of the supporting frame, a piston rod of the air cylinder penetrates through the supporting frame to be connected with the top surface of the motor mounting plate, a motor V is arranged on the bottom surface of the motor mounting plate, the output end of the motor V is connected with a rotating shaft, the rotating shaft is arranged inside the powder feeding cavity, a grinding ball is fixedly arranged in the middle position of the rotating shaft and above the V-shaped grinding cylinder, and is matched with the V-shaped grinding cylinder;

a feeding hole is formed in one side of the top of the powder feeding cavity.

As a still further scheme of the invention: the bottom rigidity of pivot is provided with the stirring leaf, the stirring leaf is made by violently, indulge the puddler combination, the vertical puddler end of stirring leaf is the slope structure, and the inclination is unanimous with powder material loading chamber bottom surface inclination.

As a still further scheme of the invention: and the discharge elbow is provided with a control valve.

As a still further scheme of the invention: the early warning device is characterized in that a control valve is arranged on the detection pipeline, an internal thread is formed in the inner wall of the bottom end of the detection pipeline, the early warning tank is connected to the detection pipeline through a thread, and the early warning tank is of a transparent structure.

As a still further scheme of the invention: z is to guide frame including U type grillage three, the vertical screw rod three that is provided with in inside of U type grillage three, the top of screw rod three is run through U type grillage three and is connected with the output of motor three, there is nut seat three through threaded connection on the screw rod three, nut seat three is with the L type riser fixed connection of the frame of moulding plastics.

As a still further scheme of the invention: the injection molding machine comprises an L-shaped vertical plate, the top of the L-shaped vertical plate is provided with a motor II, the bottom surface of the L-shaped vertical plate is fixedly provided with a cylinder body upper mounting plate, the output end of the motor II is connected with a lead screw, the bottom end of the lead screw is arranged on the cylinder body upper mounting plate, a screw seat is connected onto the lead screw, a lower pressing plate is fixedly arranged on the screw seat, the lower pressing plate is fixedly connected with the top of an injection push rod of an injection molding cylinder body, the cylinder body upper mounting plate is provided with a cylinder body lower mounting plate on the bottom surface of the cylinder body upper mounting plate through a connecting column, V-shaped grooves for injection molding cylinder body installation are formed between the cylinder body upper mounting plate and the cylinder body lower mounting plate, supporting blocks are arranged on the two sides of the V-shaped grooves between the cylinder body upper mounting plate and the cylinder body lower mounting plate, locking screws are connected on the supporting blocks on the two sides through threads, and limit blocks are sleeved with limit blocks, and are compressed through the locking nuts on the locking screws.

As a still further scheme of the invention: clamping grooves for the clamping jaws to slide are formed in the table top of the injection molding table and located around the heating plate, U-shaped groove openings for mounting the connecting blocks are formed in the clamping jaws, limiting plates are fixedly arranged on the side faces of the connecting blocks, T-shaped grooves are formed in the plate faces of the other sides of the limiting plates, and the plate faces of the limiting plates are connected with heat insulation plates in a sliding mode through the T-shaped grooves;

the connecting block is fixed in the U-shaped notch of the clamping jaw through a fastening screw.

As a still further scheme of the invention: and a rotating hand wheel for rotating the four-jaw chuck is arranged on the front surface of the injection molding table.

As a still further scheme of the invention: the structure of the inner part of the first U-shaped plate frame is completely consistent with that of the second U-shaped plate frame, a first screw is arranged inside the first U-shaped plate frame, a first nut seat is connected to the first screw through threads, a fixed plate is fixedly arranged on the side surface of the first nut seat, a strip-shaped groove is formed in the top surface of the first U-shaped plate frame, and the upper end of the fixed plate penetrates through the strip-shaped groove and is connected to the strip-shaped groove in a sliding mode;

the first U-shaped plate frame is fixedly connected with the fixing plates of the second U-shaped plate frame through a cross beam, a second screw is arranged between the two fixing plates, and one end of the second screw penetrates through the fixing plates and is connected with the output end of the second motor;

one end of a first screw rod inside the first U-shaped plate frame penetrates through one side of the first U-shaped plate frame and is connected with a first motor and a first gear, one end of a first screw rod inside the second U-shaped plate frame penetrates through one side of the second U-shaped plate frame and is connected with a second gear, and the first gear and the second gear are connected through a gear belt.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the injection molding slurry feeding device, the powder feeding cavity and the heating reaction kettle are separately arranged, the injection molding slurry is heated through the heating reaction kettle, the powder is guided into the powder feeding cavity, the grinding balls are driven to rotate through the five motors, the metal powder is ground and crushed under the grinding action of the grinding balls and the V-shaped grinding cylinder, the precision of metal powder grinding is guaranteed, the powder in the powder feeding cavity is stirred through the rotating shaft driving stirring blades, and the caking of the metal powder is effectively prevented, so that the quality of the metal powder is effectively guaranteed, and the mixing quality of the injection molding slurry is improved;

2. according to the invention, the powder feeding cavity and the heating reaction kettle are connected through the material conveying pipeline, namely when metal powder is fed, the material in the powder feeding cavity automatically flows into the heating reaction kettle by opening the material conveying pipeline, and hot steam in the heating reaction kettle can be effectively prevented from entering the powder feeding cavity through the control valve on the material conveying pipeline, so that the material in the powder feeding cavity is effectively protected;

3. according to the invention, the heating reaction kettle and the injection cylinder body are designed in a split manner, injection molding slurry is heated through the heating reaction kettle, in the injection molding process, the screw rod is driven by the motor to rotate, the screw rod drives the screw seat to move upwards, so that the screw seat drives the lower pressing plate and the injection piston of the injection cylinder body to lift upwards, and the injection cylinder body forms negative pressure to suck the injection molding slurry in the heating reaction kettle, so that the injection cylinder body is cast, the practicability is strong, the suction amount of the injection cylinder body can be controlled according to the injection molding slurry amount, the flexibility is high, and raw materials can be effectively saved;

4. according to the invention, the heating plate is arranged on the injection molding table, the bottom of the injection mold is heated through the heating plate, and the injection mold is insulated through the insulation boards on the four clamping jaws of the four-jaw chuck, so that the problem that the plastic slurry which is poured first is cooled in the injection mold first is effectively avoided, the slurry in the injection mold is synchronously cooled, and the pouring quality is improved;

5. according to the invention, the early warning tank with the transparent structure is arranged on the discharge elbow pipe through the detection pipeline, and the plastic slurry entering the injection cylinder body is checked in advance through the early warning tank, so that the quality of the injection slurry entering the injection cylinder body can be effectively ensured.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view schematically showing a structure of an injection molding machine for molten metal injection of metal powder.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is a schematic structural view of a U-shaped plate frame i in an injection molding machine for molten metal injection.

Fig. 4 is a schematic view showing a structure of a heating plate in an injection molding machine for molten metal injection of metal powder.

FIG. 5 is a top view of an injection station of an injection molding machine for molten metal powder injection.

FIG. 6 is a schematic view of a Z-guide and a frame of an injection molding machine for molten metal injection.

FIG. 7 is a schematic view of a mounting plate on a cylinder of an injection molding machine for molten metal injection of metal powder.

In the figure: 1. an injection molding table; 101. rotating a hand wheel; 102. heating the plate; 103. a card slot; 104. a claw; 105. connecting blocks; 106. a limiting plate; 107. a thermal insulation board; 108. a T-shaped groove; 2. a first U-shaped plate frame; 201. a U-shaped plate frame II; 202. a first screw rod; 203. a first nut seat; 204. a first motor; 205. a strip-shaped groove; 206. a fixing plate; 207. a first gear; 208. a second gear; 209. a gear belt; 3. a cross beam; 301. a second screw; 302. a second motor; 303. a second nut seat; 4. a Z-direction guide frame; 401. a third U-shaped plate frame; 402. a third screw; 403. a third motor; 404. a third nut seat; 5. an injection molding machine frame; 501. an L-shaped vertical plate; 502. a screw rod; 503. a motor IV; 504. a nut seat; 505. pressing the plate downwards; 506. an upper mounting plate of the cylinder body; 507. a lower mounting plate of the cylinder body; 508. connecting columns; 509. a support block; 510. injection molding the cylinder body; 511. locking the screw; 512. a limiting block; 513. locking the nut; 514. a V-shaped groove; 6. a powder feeding cavity; 601. a V-shaped grinding cylinder; 602. a cylinder; 603. a support frame; 604. a motor mounting plate; 605. a fifth motor; 606. a rotating shaft; 607. grinding balls; 608. stirring blades; 609. a feed inlet; 610. a delivery pipeline; 7. heating the reaction kettle; 701. discharging bent pipes; 702. an early warning tank; 703. and detecting the pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, in an embodiment of the present invention, an injection molding machine for injecting a metal powder melt includes an injection molding table 1, a heating plate 102 and a four-jaw chuck are disposed on a table top of the injection molding table 1, the heating plate 102 is located in a middle position of the table top of the injection molding table 1 and is located at a center position of four jaws 104 of the four-jaw chuck, and the heating plate 102 is used to heat a bottom of an injection mold, so that a plastic slurry poured first is effectively prevented from being cooled first in the injection mold, synchronous cooling of the slurry in the injection mold is achieved, and a pouring quality is improved.

The mesa both sides of platform 1 of moulding plastics are provided with U template frame 2 and U template frame two 201, be connected with crossbeam 3 through fixed plate 206 between U template frame 2 and U template frame two 201, just be connected with two 303 of nut seat through the fixed plate 206 at both ends on the front of crossbeam 3, nut seat two 303 are provided with Z side by side on the front and to leading truck 4, powder material loading chamber 6 and heating reation kettle 7, heating reation kettle 7 is located powder material loading chamber 6 under, powder material loading chamber 6 is connected with heating reation kettle 7 through conveying pipeline 610, be provided with the control valve on the conveying pipeline 610, inform the break-make between control valve realization powder material loading chamber 6 and the heating reation kettle 7.

Z is fixed to be provided with frame 5 of moulding plastics on to leading truck 4, be provided with the cylinder body 510 of moulding plastics on the frame 5 of moulding plastics, heating reation kettle 7 is connected through ejection of compact return bend 701 with the cylinder body 510 of moulding plastics between, be connected with early warning jar 702 through detection pipeline 703 on the ejection of compact return bend 701, look over the plastics thick liquids that get into in the cylinder body 510 of moulding plastics in advance through early warning jar 702, can effectively ensure to get into the quality of the interior slip liquids of the cylinder body 510 of moulding plastics.

The inside in powder material loading chamber 6 is provided with V type grinding vessel 601 that is loudspeaker column structure, be provided with braced frame 603 on the outside top surface in powder material loading chamber 6, braced frame 603 is the cuboid cavity structure that the bottom surface does not have the lid, braced frame 603's inside sliding connection has motor mounting panel 604, fixed being provided with cylinder 602 on braced frame 603's the outside top surface, the piston rod of cylinder 602 runs through braced frame 603 and is connected with motor mounting panel 604 top surface, the bottom surface of motor mounting panel 604 is provided with motor five 605, the output of motor five 605 is connected with pivot 606, pivot 606 sets up the inside in powder material loading chamber 6, the middle part position of pivot 606 just is located the fixed grinding ball 607 that is provided with in the top of V type grinding vessel 601, grinding ball 607 and V type grinding vessel 601 looks adaptation, top one side of powder material loading chamber 6 has seted up feed inlet 609, with leading-in powder material loading chamber 6, drives the piston rod through cylinder 602 and pushes down motor mounting panel 604, drives grinding ball 607 to rotate through motor five, carries out the grinding ball 601 effect under grinding effect to metal powder material grinding effect, the grinding of metal powder material stirring, thereby the improvement of the effective grinding impeller 608 that improves the powder grinding quality, thereby the effective grinding efficiency of stirring to the grinding metal powder grinding impeller 606 of stirring, the grinding metal grinding to the grinding metal grinding to the effective grinding impeller 606 of preventing caking that improves the powder.

The bottom rigidity of pivot 606 is provided with stirring leaf 608, stirring leaf 608 is made by violently, indulge the puddler combination, stirring leaf 608 vertical puddler end is the slope structure, and the inclination is unanimous with the slope of 6 bottom surfaces in powder material loading chamber, makes stirring leaf 608 can realize stirring the metal powder of the inside bottom surface in powder material loading chamber 6, effectively avoids metal powder to sink the end in powder material loading chamber 6.

The discharging elbow pipe 701 is provided with a control valve for controlling the on-off of the discharging elbow pipe 701.

The early warning device is characterized in that a control valve is arranged on the detection pipeline 703, internal threads are formed in the inner wall of the bottom end of the detection pipeline 703, the early warning tank 702 is connected to the detection pipeline 703 through threads, and the early warning tank 702 is of a transparent structure and facilitates the disassembly and assembly of the early warning tank 702.

Z is to leading truck 4 including three 401 of U type grillage, three 401 of the inside vertical screw rod 402 that is provided with of three 401 of U type grillages, the top of three 402 of screw rod runs through three 401 of U type grillages and is connected with three 403 of motor output, there are three 404 of nut seat through threaded connection on three 402 of screw rod, three 404 of nut seat with the L type riser 501 fixed connection of frame 5 of moulding plastics, rotate through three 403 drive screw rod of motor three 402, make three 402 of screw rod drive three 404 of nut seat and move in the vertical direction to make three 404 of nut seat drive frame 5 of moulding plastics and move in the vertical direction, accomplish the adjustment to the vertical direction position of the cylinder body 510 of moulding plastics.

The injection molding machine frame 5 comprises an L-shaped vertical plate 501, the top of the L-shaped vertical plate 501 is provided with a motor four 503, the bottom surface of the L-shaped vertical plate 501 is fixedly provided with a cylinder body upper mounting plate 506, the output end of the motor four 503 is connected with a lead screw 502, the bottom end of the lead screw 502 is arranged on the cylinder body upper mounting plate 506, a screw seat 504 is connected onto the lead screw 502, a lower pressing plate 505 is fixedly arranged on the screw seat 504, the lower pressing plate 505 is fixedly connected with the top of an injection push rod of the injection molding cylinder body 510, the lead screw 502 is driven to rotate through the motor four 503 in the injection molding process, the lead screw 502 drives the screw seat 504 to move upwards, the screw seat 504 drives the lower pressing plate 505 and an injection piston of the injection molding cylinder body 510 to lift upwards, the injection molding cylinder body 510 forms negative pressure to suck injection molding slurry in the heating reaction kettle 7, the injection molding cylinder body 510 is poured, the practicability is strong, the suction amount of the injection molding cylinder body 510 can be controlled according to the injection molding slurry amount, the flexibility is high, and raw materials can be effectively saved.

Be provided with mounting panel 507 under the cylinder body through spliced pole 508 on the bottom surface of mounting panel 506 on the cylinder body, all set up the V type groove 514 that supplies the cylinder body 510 installation of moulding plastics between mounting panel 506 and the cylinder body lower mounting panel 507 on the cylinder body, the mounting panel 506 and the cylinder body lower mounting panel 507 under the cylinder body just are located the both sides in V type groove 514 and are provided with supporting shoe 509, and have locking screw 511 through threaded connection on the supporting shoe 509 of both sides, locking screw 511's screw end cover is equipped with stopper 512, stopper 512 compresses tightly through locking nut 513 on locking screw 511, and the messenger moulds plastics the erection of cylinder body 510 in the frame 5 of moulding plastics more stable.

Mould plastics and be located heating plate 102 on the mesa of platform 1 and seted up all around and supply the gliding draw-in groove 103 of jack catch 104, set up the U type notch that supplies the installation of connecting block 105 on the jack catch 104, the fixed limiting plate 106 that is provided with on the side of connecting block 105, T type groove 108 has been seted up on the face of limiting plate 106 opposite side, there is heated board 107 through T type groove 108 sliding connection on the face of limiting plate 106, realizes through four-jaw chuck that it is fixed to injection mold locking on platform 1 of moulding plastics, realizes the heat preservation to injection mold through heated board 107 simultaneously, places the thermal loss of injection mold.

The connecting block 105 is fixed in the U-shaped notch of the clamping jaw 104 through a fastening screw, so that the connecting block 105 can be conveniently disassembled and assembled.

And a rotating hand wheel 101 for rotating the four-jaw chuck is arranged on the front surface of the injection molding table 1.

The inner structures of the U-shaped plate frame I2 and the U-shaped plate frame II 201 are completely consistent, a screw rod I202 is arranged inside the U-shaped plate frame I2, a nut seat I203 is connected to the screw rod I202 through threads, a fixing plate 206 is fixedly arranged on the side face of the nut seat I203, a strip-shaped groove 205 is formed in the top face of the U-shaped plate frame I2, the upper end of the fixing plate 206 penetrates through the strip-shaped groove 205 and is connected to the strip-shaped groove 205 in a sliding mode, the U-shaped plate frame I2 and the fixing plate 206 of the U-shaped plate frame II 201 are fixedly connected through a cross beam 3, a screw rod II 301 is arranged between the two fixing plates 206, one end of the screw rod II 301 penetrates through the fixing plate 206 and is connected with the output end of a motor II 302, one side of one first screw 202 inside U-shaped plate frame 2 is run through and is connected with first motor 204 and first gear 207, the one end of the first screw 202 inside U-shaped plate frame two 201 runs through and is connected with second gear 208 on one side of U-shaped plate frame two 201, first gear 207 and second gear 208 are connected through gear belt 209, drive first gear 207 through first motor 204 and rotate, make first gear 207 drive second gear 208 through gear belt 209 and rotate, thereby realize that first screw 202 of U-shaped plate frame 2 and U-shaped plate frame two 201 inside rotates synchronously, realize that first nut seat 203 in U-shaped plate frame 2 and U-shaped plate frame two 201 drives fixed plate 206 synchronous motion, thereby make fixed plate 206 drive crossbeam 3 and move in longitudinal direction, realize the adjustment to the vertical upper position of cylinder body 510 of moulding plastics.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims

1. The utility model provides an injection molding machine for injection of metal powder melt, its characterized in that, including moulding plastics platform (1), be provided with heating plate (102) and four-jaw chuck on the mesa of platform (1) of moulding plastics, heating plate (102) are located the mesa intermediate position of platform (1) of moulding plastics and are located the central point that four jaws (104) of four-jaw chuck put simultaneously, the mesa both sides of platform (1) of moulding plastics are provided with U template frame (2) and U template frame two (201), be connected with crossbeam (3) through fixed plate (206) between U template frame (2) and U template frame two (201), be connected with nut seat two (303) on the front of crossbeam (3) and through fixed plate (206) at both ends, nut seat two (303) are provided with Z feeding chamber (4), powder feeding chamber (6) and heating reation kettle (7) on the front side by side, heating reation kettle (7) are located powder feeding chamber (6) under, powder feeding chamber (6) are connected to heating reation kettle (7) through pipeline (610), it is connected to the last feeding cylinder body (5) of moulding plastics to defeated material (510), be provided with the elbow (510) through defeated material (510) and the discharge tube (510) of moulding plastics, the discharge elbow (701) is connected with an early warning tank (702) through a detection pipeline (703).

2. The injection molding machine for metal powder melt injection according to claim 1, wherein a V-shaped grinding cylinder (601) with a horn-shaped structure is arranged inside the powder feeding cavity (6), a supporting frame (603) is arranged on the outer top surface of the powder feeding cavity (6), the supporting frame (603) is of a cuboid cavity structure without a cover on the bottom surface, a motor mounting plate (604) is slidably connected inside the supporting frame (603), a cylinder (602) is fixedly arranged on the outer top surface of the supporting frame (603), a piston rod of the cylinder (602) penetrates through the supporting frame (603) and is connected with the top surface of the motor mounting plate (604), a motor five (605) is arranged on the bottom surface of the motor mounting plate (604), an output end of the motor five (605) is connected with a rotating shaft (606), the rotating shaft (606) is arranged inside the powder feeding cavity (6), a grinding ball (607) is fixedly arranged in the middle position of the rotating shaft (606) and above the V-shaped grinding cylinder (601), and the grinding ball (607) is matched with the V-shaped grinding cylinder (601);

and a feeding hole (609) is formed in one side of the top of the powder feeding cavity (6).

3. The injection molding machine for metal powder melt injection of claim 2, wherein the bottom of the rotating shaft (606) is fixedly provided with a stirring blade (608), the stirring blade (608) is made of a combination of a transverse stirring rod and a longitudinal stirring rod, and the end of the longitudinal stirring rod of the stirring blade (608) is in an inclined structure, and the inclination of the longitudinal stirring rod is consistent with the inclination of the bottom surface of the powder feeding cavity (6).

4. An injection molding machine for molten metal injection of claim 1, wherein the discharge elbow (701) is provided with a control valve.

5. The injection molding machine for molten metal injection of metal powder as claimed in claim 1, wherein a control valve is disposed on the detection pipe (703), an inner thread is disposed on an inner wall of a bottom end of the detection pipe (703), the early warning tank (702) is connected to the detection pipe (703) through a thread, and the early warning tank (702) is of a transparent structure.

6. The injection molding machine for metal powder melt injection of claim 1, wherein the Z-direction guide frame (4) comprises a U-shaped plate frame III (401), a screw rod III (402) is vertically arranged inside the U-shaped plate frame III (401), the top end of the screw rod III (402) penetrates through the U-shaped plate frame III (401) and is connected with the output end of a motor III (403), a nut seat III (404) is connected onto the screw rod III (402) through threads, and the nut seat III (404) is fixedly connected with an L-shaped vertical plate (501) of the injection molding machine frame (5).

7. The injection molding machine for injecting molten metal powder as claimed in claim 1, wherein the injection molding machine frame (5) comprises an L-shaped vertical plate (501), a motor four (503) is arranged at the top of the L-shaped vertical plate (501), an upper cylinder mounting plate (506) is fixedly arranged on the bottom surface of the L-shaped vertical plate (501), a lead screw (502) is connected to the output end of the motor four (503), the bottom end of the lead screw (502) is arranged on the upper cylinder mounting plate (506), a nut seat (504) is connected to the lead screw (502), a lower pressing plate (505) is fixedly arranged on the nut seat (504), the lower pressing plate (505) is fixedly connected to the top of the injection push rod of the injection molding cylinder (510), a lower cylinder mounting plate (507) is arranged on the bottom surface of the upper cylinder mounting plate (506) through a connecting column (508), a V-shaped groove (514) for installing the injection molding cylinder (510) is arranged between the upper cylinder mounting plate (506) and the lower cylinder mounting plate (507), a screw thread locking block (509) is arranged on two sides of the V-shaped groove (509), a screw (511) is arranged on two sides of the locking block (511) through a screw (511), and a screw thread locking block (511) is sleeved on two sides of the locking block (511), the limiting block (512) is pressed on the locking screw (511) through a locking nut (513).

8. The injection molding machine for metal powder melt injection according to claim 1, wherein a clamping groove (103) for a clamping jaw (104) to slide is formed in the periphery of the heating plate (102) on the table top of the injection molding table (1), a U-shaped notch for installing a connecting block (105) is formed in the clamping jaw (104), a limiting plate (106) is fixedly arranged on the side surface of the connecting block (105), a T-shaped groove (108) is formed in the plate surface on the other side of the limiting plate (106), and a heat insulation plate (107) is slidably connected to the plate surface of the limiting plate (106) through the T-shaped groove (108);

the connecting block (105) is fixed in the U-shaped groove of the clamping jaw (104) through a fastening screw.

9. An injection moulding machine for the injection of molten metal in powder form, according to claim 1, characterized in that the injection moulding station (1) is provided on its front face with a rotating handwheel (101) rotating against a four-jaw chuck.

10. The injection molding machine for injecting the metal powder melt as claimed in claim 1, wherein the internal structure of the first U-shaped plate frame (2) is completely consistent with that of the second U-shaped plate frame (201), a first screw (202) is arranged inside the first U-shaped plate frame (2), a first nut seat (203) is connected to the first screw (202) through threads, a fixing plate (206) is fixedly arranged on the side surface of the first nut seat (203), a strip-shaped groove (205) is formed in the top surface of the first U-shaped plate frame (2), and the upper end of the fixing plate (206) penetrates through the strip-shaped groove (205) and is slidably connected to the strip-shaped groove (205);

the U-shaped plate frame I (2) is fixedly connected with the fixing plates (206) of the U-shaped plate frame II (201) through the cross beam (3), a screw rod II (301) is arranged between the two fixing plates (206), and one end of the screw rod II (301) penetrates through the fixing plates (206) and is connected with the output end of the motor II (302);

one end of a first screw rod (202) inside the first U-shaped plate frame (2) penetrates through one side of the first U-shaped plate frame (2) and is connected with a first motor (204) and a first gear (207), one end of the first screw rod (202) inside the second U-shaped plate frame (201) penetrates through one side of the second U-shaped plate frame (201) and is connected with a second gear (208), and the first gear (207) and the second gear (208) are connected through a gear belt (209).