CN213291275U

CN213291275U - Servo-driven injection seat of electric injection molding machine

Info

Publication number: CN213291275U
Application number: CN202022216141.0U
Authority: CN
Inventors: 葛少军
Original assignee: Hangzhou Pingcheng Machinery Co ltd
Current assignee: Hangzhou Pingcheng Machinery Co ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-28
Anticipated expiration: 2030-09-30

Abstract

The utility model relates to a servo driven electric injection molding machine injection seat, including establishing the feeding portion that melts material portion, intercommunication melt material portion lateral wall and be used for leading-in cavity of granule, connect the material portion of melting and be used for extruding the material portion that pushes away and the drive that the material portion global movement melted material portion that melts of granule, melt material portion one end and melt the discharge gate of material portion for being used for extruding the melting granule, establish the heating member in the cavity, melt material portion lateral wall opening, feeding portion sets up in melting material portion opening, and along melting material portion length direction sliding connection in melting material portion. The application has the effect of reducing the coke charge generated in the heating process.

Description

Servo-driven injection seat of electric injection molding machine

Technical Field

The application relates to the field of injection machines, in particular to an injection seat of a servo-driven electric injection molding machine.

Background

An injection molding machine, also known as an injection molding machine or an injection molding machine, is a main molding apparatus for producing plastic products of various shapes from thermoplastic or thermosetting pellets by using a mold.

Chinese patent publication No. CN105479656A discloses an injection molding machine, comprising a movable injection mold, an injection molding mechanism and an operation table, wherein the movable injection mold and the injection molding mechanism are arranged on the operation table, and the injection molding mechanism is located behind the movable injection mold; the injection molding mechanism comprises a screw heater, a screw, a hopper, a servo motor, a screw moving driving mechanism and a flow stopping valve, wherein a cavity is arranged inside the screw heater, the flow stopping valve is arranged in the cavity and separates the cavity, the screw is arranged in the screw heater and penetrates through the flow stopping valve, the hopper is arranged above the screw heater, an outlet of the hopper is communicated with the inner cavity of the screw heater, and the screw is connected with the screw moving driving mechanism through a connecting rod.

In view of the above-mentioned related technologies, the inventors believe that as the heating time of the pellets increases during injection molding, the temperature gradually increases and the melting speed increases, which may cause the occurrence of coke inside and affect the quality of the discharged material.

Disclosure of Invention

In order to reduce the generation of coke materials, the application provides an injection seat of a servo-driven electric injection molding machine.

The application provides a servo drive's electric injection molding machine injection seat adopts following technical scheme:

the utility model provides a servo driven electric injection molding machine injection seat, includes that to establish the melting portion of cavity, intercommunication melting portion lateral wall and be used for the feeding portion of the leading-in cavity of aggregate, connect the driving piece that the material portion that pushes away the material portion and the drive of melting portion bodily movement that melting portion was used for extruding the melting aggregate of melting portion, melting portion one end is for the discharge gate that is used for extruding the melting aggregate, establish the heating member in the cavity, melting portion lateral wall opening, feeding portion set up in melting portion opening, and along melting a length direction sliding connection in melting portion.

By adopting the technical scheme, the granules are fed from the upper end of the feeding part, and after entering the melting part, the granules are heated by the electric heating wire, and are gradually melted into a liquid state in the process that the pushing part pushes the granules to the discharging borrow port, and finally are extruded and molded. The position of feed portion is adjustable, and the short heating temperature of start-up time is not high, and the accessible removes feed portion to keeping away from discharge gate one side, and extension heating time reaches heavy fully fused effect, and when heating temperature rised, removes feed portion to discharge gate one side, shortens heating time, reduces because the condition of the too high formation coke charge of temperature, improves granule fused quality.

Preferably, the feeding portion is including installing in melting the material portion opening and along melting the material portion length direction sliding connection in melting the striker plate of material portion and fixed mounting in the striker plate keep away from cavity one side and the inlet pipe that communicates the cavity.

Through adopting above-mentioned technical scheme, the striker plate is located and melts the material portion opening, plays the effect of keeping off the material, reduces the leakage of melting aggregate. Along with the removal of striker plate, the inlet pipe removes along with the striker plate, reaches the effect of adjusting aggregate feed position.

Preferably, the upper end of the feeding pipe is arranged in a flaring manner.

Through adopting above-mentioned technical scheme, the aggregate passes through the inlet pipe and gets into in the cavity, sets the flaring to the inlet pipe upper end, and in the time of reinforced, can reduce the probability that the aggregate spills. Simultaneously, the inlet pipe that the flaring set up can increase the volume that the aggregate was stored, and operating personnel can once only add great volume, has great convenience.

Preferably, melt material portion opening and be close to cavity one side and seted up the spout, the striker plate sets up in the spout, the striker plate seals completely and melts material portion opening, and striker plate lateral wall butt in spout inner wall, and along spout length direction sliding connection in spout inner wall.

By adopting the technical scheme, partial granules are melted and need to be pressurized into the cavity so as to increase the internal pressure and improve the extrusion rate. When the striker plate slides along the length direction of the opening of the melting part, the opening of the melting part is always closed, so that the pressure is conveniently applied to the cavity.

Preferably, the outer wall of the side, provided with the opening, of the melting part is provided with scales along the length direction of the opening.

Through adopting above-mentioned technical scheme, when the relative material portion that melts of feeding portion removed, the operator can be according to the heat time, observes the scale that corresponds and carries out manual regulation, has improved the precision of adjusting.

Preferably, the material pushing part comprises a screw rod penetrating into the cavity and a servo motor driving the screw rod to rotate, and the servo motor is installed outside the material melting part.

Through adopting above-mentioned technical scheme, select servo motor as driving piece, servo motor can just reverse. If the equipment is stopped for a period of time, the servo motor reversely rotates to drive most of the molten granules close to one end of the discharge hole to reset into the cavity. When restarting, heating the residual aggregate in the cavity, repeatedly using, improving the utilization ratio of the aggregate.

Preferably, the side wall of the screw abuts against the inner wall of the cavity.

By adopting the technical scheme, the side wall of the screw abuts against the inner wall of the cavity, and when the screw rotates, the melted granular materials adhered to the inner wall of the cavity are scraped, so that the conduction of the melted granular materials is facilitated, and the probability of producing coke materials is reduced.

Preferably, the melting part comprises a cylinder with an opening at one end and a cylinder cover arranged at the opening end of the cylinder, and the cylinder cover and the cylinder are connected through bolts.

By adopting the technical scheme, after the device is used, partial molten granules are adhered to the inner wall of the cavity, and at the moment, the device is difficult to clean from the feeding part. The barrel cover can be detached to comprehensively clean the interior of the barrel body and the surface of the screw, so that the influence of solidified granules left in the barrel body on the next processing is reduced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by adjusting the position of the feeding part, the situation of coke formation due to overhigh temperature is reduced, and the quality of the fusion of the granules is improved.

2. When the striker plate slides along the length direction of the opening of the melting part, the opening of the melting part is always closed, so that the pressure is conveniently applied to the cavity.

3. Through dismantling the cover, carry out comprehensive washing to barrel inside and screw rod surface, reduce the granule material of remaining solidification in the barrel to the influence of processing next time.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

fig. 2 is a front sectional view of the present embodiment.

Description of reference numerals: 10. a cavity; 11. a material melting part; 12. a barrel; 13. a cylinder cover; 14. a bolt; 15. a through groove; 16. a chute; 17. calibration; 20. a feeding section; 21. a striker plate; 22. a feed pipe; 23. a material pushing section; 24. a screw; 25. a servo motor; 30. a drive member; 31. a slider; 32. a screw rod; 33. a support; 34. and (4) a discharge port.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a servo-driven electric injection molding machine injection seat. Referring to fig. 1 and 2, the apparatus includes a melting portion 11 having a cavity 10 therein, a feeding portion 20 communicating with a side wall of the melting portion 11 to introduce the pellets into the cavity 10, a pushing portion 23 connected to the melting portion 11 to extrude the melted pellets, and a driving member 30 for driving the melting portion 11 to move as a whole. The cavity 10 is provided with a heating element, which may be an electric heating wire, and one end of the melting part 11 is opened to form a discharge port 34 for extruding out the melted granules.

During injection, the heating element heats the melting part 11, the granules enter the cavity 10 from the feeding part 20, and when the pushed part 23 is pushed to the discharge port 34 side, the granules are gradually melted, and the melted granules are extruded into a mold and cooled and molded.

Specifically, referring to fig. 1 and 2, the side wall of the melting portion 11 is open to form a through groove 15 communicated with the cavity 10, a sliding groove 16 is formed in the side wall of the through groove 15, the sliding groove 16 is formed along the length direction of the melting portion 11 but is not communicated with the cavity 10, and a scale 17 is arranged on one side of the sliding groove 16 along the length direction thereof. The feeding portion 20 comprises a material baffle 21 and a feeding pipe 22 fixedly installed on the material baffle 21, the material baffle 21 is an arc-shaped plate completely covering the through groove 15, the material baffle 21 is arranged in the sliding groove 16 and is abutted against the inner wall of the sliding groove 16, and the material baffle is connected to the inner wall of the sliding groove 16 in a sliding mode along the length direction of the sliding groove 16. The feed pipe 22 is fixedly connected to the side wall of the striker plate 21 far away from one side of the cavity 10, and one end of the feed pipe 22 far away from the striker plate 21 is flared.

During feeding, the aggregate gets into in the cavity 10 from inlet pipe 22, and when the short heating temperature of start-up time was not high, can remove striker plate 21 and inlet pipe 22 to keeping away from discharge gate 34 one side, the distance increase of inlet pipe 22 and discharge gate 34, the heating time extension reaches the effect of heavily fully melting the aggregate, and striker plate 21 will lead to groove 15 and seal completely, can pressurize in the cavity 10 and accelerate the extrusion of melting the aggregate.

Specifically, referring to fig. 1 and 2, a bracket 33 for supporting the melting part 11 and the driving member 30 is mounted at the lower end of the melting part 11, the driving member 30 includes a slider 31 fixedly connected to the melting part 11, a screw rod 32 screwed to the slider 31, and a servo motor 25 for driving the screw rod 32 to rotate, the upper end of the bracket 33 forms a U shape with an upward opening, the melting part 11 abuts against the opening end of the bracket 33 and is slidably connected to the bracket 33 along the length direction of the melting part 11, and the servo motor 25 is fixedly mounted on the bracket 33. The melting part 11 is provided with a discharge port 34, and one end of the melting part is arranged in a necking way. Both ends of the screw rod 32 are rotatably connected to the bracket 33, the servo motor 25 is fixedly installed on the bracket 33, and the rotating shaft at the end part is fixedly connected to the screw rod 32.

The melting part 11 comprises a cylinder 12 with an opening at one end and a cylinder cover 13 arranged at the opening end of the cylinder 12, bolts 14 penetrate through one side, away from the cylinder 12, of the cylinder cover 13, the bolts 14 are uniformly arranged along the circumferential direction of the cylinder cover 13, and the end part of each bolt 14 is in threaded connection with the cylinder 12. The material pushing part 23 comprises a screw 24 installed in the cavity 10 and a servo motor 25 driving the screw 24 to rotate, the screw 24 is axially arranged along the material melting part 11, one end of the screw is rotatably connected to the material melting part 11 through a bearing, and the outer side wall of the screw 24 abuts against the inner wall of the cavity 10. The servo motor 25 is fixedly installed on one side of the cylinder cover 13 far away from the cylinder 12, and a rotating shaft at the end part of the servo motor is fixedly connected with the screw rod 24.

When the molten granules are extruded, the discharge port 34 of the melting part 11 needs to be in butt joint with the die, the servo motor 25 drives the screw rod 32 to rotate, and the melting part 11 is pushed towards one side of the die until the discharge port 34 is in butt joint with the die. The screw 24 is driven by the servo motor 25 on one side of the cylinder cover 13 to rotate, so that the internal molten granules are extruded out of the discharge port 34, and the molten granules adhered to the inner wall of the cavity 10 are scraped off by the screw 24 and extruded together.

The implementation principle of the injection seat of the servo-driven electric injection molding machine in the embodiment of the application is as follows: during injection, the heating element heats the melting part 11, the granules enter the cavity 10 from the feeding part 20, the servo motor 25 drives the screw 24 to rotate, and the granules melted in the cavity are extruded out from the discharge hole 34. The driving member 30 drives the melting portion 11 to make the discharge port 34 abut against the mold. The molten pellets are pressed out into a mold until cooled and formed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a servo drive's electronic injection molding machine injection seat which characterized in that: melt material portion (11), intercommunication including interior establishing cavity (10) melt material portion (11) lateral wall and be used for feeding portion (20) with granule leading-in cavity (10), connect and melt material portion (11) and be used for extruding the material portion (23) that pushes away of melting granule and drive melt driving piece (30) that material portion (11) bodily movement, melt material portion (11) one end and be discharge gate (34) for extruding the melting granule, establish the heating member in cavity (10), melt material portion (11) lateral wall opening, feeding portion (20) set up in melting material portion (11) opening, and along melting material portion (11) length direction sliding connection in melting material portion (11).

2. The injection seat of a servo-driven electric injection molding machine according to claim 1, characterized in that: feeding portion (20) including install in melting material portion (11) opening and along melting material portion (11) length direction sliding connection in melt striker plate (21) of material portion (11) and fixed mounting keep away from cavity (10) one side and feed pipe (22) that communicate cavity (10) at striker plate (21).

3. The injection seat of a servo-driven electric injection molding machine according to claim 2, characterized in that: the upper end of the feeding pipe (22) is flared.

4. The injection seat of a servo-driven electric injection molding machine according to claim 2, characterized in that: melt material portion (11) opening and be close to cavity (10) one side and seted up spout (16), striker plate (21) set up in spout (16), striker plate (21) seal completely and melt material portion (11) opening, striker plate (21) lateral wall butt in spout (16) inner wall, and along spout (16) length direction sliding connection in spout (16) inner wall.

5. The injection seat of a servo-driven electric injection molding machine according to claim 1, characterized in that: the outer wall of the side, provided with the opening, of the melting part (11) is provided with scales (17) along the length direction of the opening.

6. The injection seat of a servo-driven electric injection molding machine according to claim 1, characterized in that: the material pushing part (23) comprises a screw rod (24) arranged in the cavity (10) in a penetrating mode and a servo motor (25) driving the screw rod (24) to rotate, and the servo motor (25) is installed outside the material melting part (11).

7. The injection seat of a servo-driven electric injection molding machine according to claim 6, wherein: the side wall of the screw rod (24) is abutted against the inner wall of the cavity (10).

8. The injection seat of a servo-driven electric injection molding machine according to claim 1, characterized in that: the melting part (11) comprises a cylinder body (12) with an opening at one end and a cylinder cover (13) arranged at the opening end of the cylinder body (12), and the cylinder cover (13) is connected with the cylinder body (12) through a bolt (14).