CN216760714U

CN216760714U - Material injection device for full-electric injection molding machine

Info

Publication number: CN216760714U
Application number: CN202123412735.XU
Authority: CN
Inventors: 黄品亚; 孔丹; 潘金伟
Original assignee: Jiangyin Xiaole Dynamo Electric Development Co ltd
Current assignee: Jiangyin Xiaole Dynamo Electric Development Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-17
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a material injection device for a full-electric injection molding machine, and relates to the technical field of industrial production. The injection device comprises a mounting box, an injection pipe is arranged on the lower side in the mounting box, an injection nozzle is arranged at the left end of the injection pipe, a heat conduction pipe is fixed on the upper wall of the injection pipe in a sealing mode, a blanking box is arranged above the heat conduction pipe, a connecting pipe is fixed at the bottom of the blanking box in a sealing mode, a moving block is arranged in the connecting pipe, a motor is arranged above the blanking box, and heating wires are arranged on the side walls of the front side and the rear side in the mounting box. The utility model enables the moving block to move downwards through the motor, so that the injection molding is realized in a molten state in the injection pipe, and the phenomenon that the plastic can not be completely molten is reduced by preheating the to-be-molten plastic at the bottom of the blanking box through the heat of the heating wire.

Description

Material injection device for full-electric injection molding machine

Technical Field

The utility model belongs to the technical field of industrial production, and particularly relates to a material injection device for a full-electric injection molding machine.

Background

In industrial production, an injection molding machine is a main molding device for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by using a plastic molding die, and is divided into a vertical type, a horizontal type and a full-electric type, wherein the full-electric type injection molding machine performs injection molding work by using electric power as a power source and mainly comprises an injection system, a die closing system and the like, the plastic in a molten state is injected into the die by using an injection molding device, and a finished product can be obtained after solidification and shaping, but the injection molding machine still has the following defects in actual use:

1. in the prior art, most screws are adopted to complete conveying and injection of molten plastic, but generally the screws are longer and need to be precisely matched with a charging barrel, so that the qualified screws and charging barrels are difficult to produce, and the cost is higher;

2. in the prior art, plastic is heated in a charging barrel, so that the phenomenon that the plastic cannot be completely melted exists, and the defective rate is increased.

Therefore, in the prior art, most screws are adopted to complete conveying and injection of plastic in a molten state, but the screws are usually long and need to be precisely matched with the material barrel, so that the screw and the material barrel which are qualified in production are difficult, the cost is high, and in the prior art, plastic is heated in the material barrel, so that the phenomenon that the plastic cannot be completely molten is caused, the defective rate is increased, and the requirement in actual use cannot be met, so that an improved technology is urgently needed in the market to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a material injection device for an all-electric injection molding machine, which is characterized in that a moving block is moved downwards through a motor to enable molten plastic inside an injection pipe to be injected, and the molten plastic at the bottom of a blanking box is preheated by utilizing heat of a heating wire, so that the problems that in the prior art, most screws are adopted to complete conveying and injection of the molten plastic, but the screws are usually longer and need to be precisely matched with a charging barrel, so that the qualified screws and charging barrels are difficult to produce, the cost is higher, and in the prior art, the plastic cannot be completely molten due to the fact that the plastic is heated in the charging barrel, and the defective rate is increased are solved.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a material injection device for a fully electric injection molding machine, which comprises a mounting box, wherein an injection pipe is arranged at the lower side in the mounting box, an injection nozzle is arranged at the left end of the injection pipe and is positioned outside a heat insulation layer, a heat conduction pipe is fixed on the upper wall of the injection pipe in a sealing manner, the interior of the heat conduction pipe is communicated with the interior of the injection pipe and the interior of a connection pipe, a blanking box is arranged above the heat conduction pipe, the interior of the blanking box is communicated with the interior of the connection pipe, the bottom of the blanking box is fixedly sealed with the connection pipe, a moving block is arranged in the connection pipe, a motor is arranged above the blanking box, heating wires are arranged on the side walls of the front side and the rear side in the mounting box, and the input ends of the motor and the heating wires are electrically connected with an external power supply through electric wires.

Further, the top of workbin is fixed with the mounting panel down, and the motor is fixed in the intermediate position department of mounting panel upper wall, be fixed with the screw rod on the power output shaft of motor, the feed inlet has been seted up to one side of mounting panel.

Furthermore, a threaded sleeve is fixed on the upper wall of the moving block and is in threaded connection with the screw, and cross rods are fixed on the left side wall and the right side wall of the upper end of the threaded sleeve.

Furthermore, limiting plates are fixed on the inner walls, corresponding to the blanking boxes, of the front side and the rear side of one end, far away from the threaded sleeve, of the cross rod, and the moving blocks are in clearance fit with the connecting pipes.

Furthermore, a heat insulation layer is arranged outside the mounting box, a heat insulation ring is arranged on the upper wall of the heat insulation layer corresponding to the outside of the connecting pipe, and the upper wall of the heat insulation ring is in contact with the blanking box.

Furthermore, the upper end of the heat conduction pipe penetrates through the installation box and the heat insulation layer and is fixed with the lower end of the connecting pipe in a sealing mode, a plurality of through holes are formed between the heat conduction pipe and the heat insulation ring and correspond to the upper wall of the installation box, and the upper end of each through hole penetrates through the upper wall of the heat insulation layer.

The utility model has the following beneficial effects:

1. the utility model controls the motor to work by arranging the motor, the screw rod, the threaded sleeve, the connecting pipe and the heat conducting pipe, when injection is carried out, the power output shaft of the motor rotates to drive the screw rod to rotate, so that the threaded sleeve moves downwards, and then the moving block moves downwards, at the moment, the pressure in the injection pipe is increased, molten plastic is separated from the injection pipe by the injection nozzle on the injection pipe and is injected into the cavity of the mold to complete injection molding, compared with the prior art, the device drives the moving block to move downwards by using the motor to work, so that the molten plastic in the injection pipe can enter the mold to complete injection molding, has the advantages of simple structure, easy production and low cost, solves the problems that the prior art mostly adopts the screw rod to complete the conveying and injection of the molten plastic, but the screw rod is usually longer, and also needs to be precisely matched with the charging barrel, so that the qualified screw rod and the charging barrel are difficult to produce, resulting in a problem of high cost.

2. According to the device, the through holes and the heat insulation pipes are arranged, when the heating wires work, heat generated by the heating wires can penetrate through the through holes to reach the inner parts of the heat insulation rings, the bottoms of the connecting pipes and the blanking box are heated at the moment, and the heat is transferred to plastic which is about to enter the heat conduction pipes to be melted in the bottoms of the connecting pipes and the blanking box, so that the plastic which is about to be melted is preheated.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a view showing the overall structure of the present invention;

FIG. 2 is a sectional view in elevation of FIG. 1;

FIG. 3 is an exploded view of the first embodiment of the present invention;

FIG. 4 is a block diagram of the headbox of the present invention;

FIG. 5 is an exploded view of the second embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a motor; 101. a screw; 2. a blanking box; 201. mounting a plate; 2011. a feed inlet; 202. a connecting pipe; 203. a limiting plate; 3. an injection tube; 301. an injection nozzle; 4. a heat insulating ring; 5. a moving block; 501. a threaded sleeve; 5011. a cross bar; 6. mounting a box; 601. a thermal insulation layer; 602. perforating; 7. a heat conducting pipe; 8. a heating wire.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-5, the present invention is a material injection device for an all-electric injection molding machine, including a mounting box 6, the mounting box 6 is made of high temperature resistant material, an injection tube 3 is disposed on the lower side of the inside of the mounting box 6, an injection nozzle 301 is disposed at the left end of the injection tube 3, the injection nozzle 301 is located outside a heat insulation layer 601, in an injection molding state, plastic in a molten state inside the injection tube 3 is injected into a mold through the injection nozzle 301, a heat conduction pipe 7 is hermetically fixed on the upper wall of the injection tube 3, the heat conduction pipe 7 and the injection tube 3 are made of heat conduction material, the inside of the heat conduction pipe 7 is communicated with the inside of the injection tube 3 and the inside of a connection pipe 202, a blanking box 2 is disposed above the heat conduction pipe 7 for placing plastic, the inside of the blanking box 2 is communicated with the inside of the connection pipe 202, the connection pipe 202 is hermetically fixed at the bottom of the blanking box 2, the connection pipe 202 is adapted to the moving block 5, the inside of connecting pipe 202 is provided with movable block 5, make the inside pressure of heat pipe 7 and injection pipe 3 rise when movable block 5 descends, make plastics under the molten condition inject into the mould inside by injection nozzle 301, the top of workbin 2 is provided with motor 1, be used for driving screw 101 and rotate, the inside front and back both sides lateral wall of mounting box 6 all is provided with heater strip 8, be used for heating the plastics of heat pipe 7 and injection pipe 3 inside, motor 1 and heater strip 8's input passes through conductor wire and external power source electric connection, motor 1 and heater strip 8 are prior art, do not injectd its model here.

As shown in fig. 1-4, a mounting plate 201 is fixed to the top of the blanking box 2 to provide a fixing platform for the motor 1, the motor 1 is fixed to the middle of the upper wall of the mounting plate 201, a screw 101 is fixed to a power output shaft of the motor 1, the screw 101 rotates to enable a screw sleeve 501 to move up and down correspondingly, a feed port 2011 is formed in one side of the mounting plate 201, and the feed port 2011 feeds materials into the inside of the blanking box 2.

The threaded sleeve 501 is fixed on the upper wall of the moving block 5, the threaded sleeve 501 is in threaded connection with the screw 101, the moving block 5 is moved due to the movement of the threaded sleeve 501, the cross rods 5011 are fixed on the left side wall and the right side wall of the upper end of the threaded sleeve 501, and the situation that the threaded sleeve 501 rotates along with the rotation and cannot achieve the effect that the threaded sleeve 501 correspondingly moves up and down when the screw 101 rotates is avoided.

The limiting plates 203 are fixed on the inner walls, corresponding to the blanking box 2, of the front side and the rear side of one end, far away from the threaded sleeve 501, of the cross rod 5011, so that the cross rod 5011 is prevented from rotating, the cross rod 5011 can only move up and down, the moving block 5 is in clearance fit with the connecting pipe 202, and plastic in a molten state is prevented from entering the blanking box 2 when the moving block 5 moves downwards.

As shown in fig. 1, 2 and 5, a heat insulation layer 601 is disposed outside the mounting box 6, a heat insulation ring 4 is disposed on the upper wall of the heat insulation layer 601 corresponding to the outside of the connecting pipe 202, and the upper wall of the heat insulation ring 4 is in contact with the blanking box 2.

The upper end of the heat conduction pipe 7 passes through the installation box and the heat insulation layer 601 and is fixed to the lower end of the connection pipe 202 in a sealing manner, a plurality of through holes 602 are formed between the heat conduction pipe 7 and the heat insulation ring 4 corresponding to the upper wall of the installation box and are used as heat flow channels, and the upper ends of the through holes 602 penetrate through the upper wall of the heat insulation layer 601.

One specific application of this embodiment is: when injection is carried out, firstly, the power supply of the heating wire 8 is switched on, so that the heat conduction pipe 7 and the plastic in the injection pipe 3 are in a molten state, at the moment, the motor 1 is controlled to work, the power output shaft of the motor 1 rotates to drive the screw rod 101 to rotate, the threaded sleeve 501 moves downwards, and then the moving block 5 moves downwards, at the moment, the pressure in the injection pipe 3 is increased, the plastic in the molten state is separated from the injection pipe 3 by the injection nozzle 301 on the injection pipe 3 and is injected into the cavity of the mold to complete injection molding, after the plastic in the mold is molded, the motor 1 is controlled to work to lift the threaded sleeve 501 and drive the moving block 5 to lift, at the moment, the plastic in the blanking box 2 enters the connecting pipe 202 under the action of gravity to supplement raw materials, injection molding operation is carried out in such a circulation manner, and when the heating wire 8 works, the heat generated by the heating wire 8 can pass through the through hole 602 to reach the inside of the heat insulation ring 4, at this time, the bottoms of the connecting pipe 202 and the feed box 2 are heated, and the heat is transferred to the plastic to be melted in the heat conducting pipe 7 in the bottoms of the connecting pipe 202 and the feed box 2, so as to preheat the plastic to be melted.

The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.

Claims

1. The utility model provides a material injection device for full-electric injection molding machine, includes mounting box (6), its characterized in that: the utility model discloses a heating device, including mounting box (6), injection nozzle (301), heat pipe (7), workbin (2) are provided with in the top of heat pipe (7), connecting pipe (202) are fixed with in the bottom sealing of workbin (2), the inside of connecting pipe (202) is provided with movable block (5), the top of workbin (2) is provided with motor (1), both sides lateral wall all is provided with heater strip (8) around mounting box (6) inside.

2. The material injection device for the all-electric injection molding machine according to claim 1, wherein a mounting plate (201) is fixed to the top of the blanking box (2), the motor (1) is fixed to the middle position of the upper wall of the mounting plate (201), a screw (101) is fixed to a power output shaft of the motor (1), and a feed inlet (2011) is formed in one side of the mounting plate (201).

3. The material injection device for the all-electric injection molding machine according to claim 1, wherein a threaded sleeve (501) is fixed on the upper wall of the moving block (5), the threaded sleeve (501) is in threaded connection with the screw (101), and cross bars (5011) are fixed on the left side wall and the right side wall of the upper end of the threaded sleeve (501).

4. The material injection device for the all-electric injection molding machine according to claim 3, wherein the front side and the rear side of one end of the cross bar (5011) far away from the threaded sleeve (501) are respectively fixed with a limiting plate (203) corresponding to the inner wall of the blanking box (2), and the moving block (5) is in clearance fit with the connecting pipe (202).

5. A material injection device for an all-electric injection molding machine according to claim 1, characterized in that the outer part of the mounting box (6) is provided with a heat insulation layer (601), the upper wall of the heat insulation layer (601) is provided with a heat insulation ring (4) corresponding to the outer part of the connecting pipe (202), and the upper wall of the heat insulation ring (4) is in contact with the blanking box (2).

6. The material injection device for the all-electric injection molding machine according to claim 1, wherein the upper end of the heat conduction pipe (7) penetrates through the installation box and the thermal insulation layer (601) and is fixed with the lower end of the connection pipe (202) in a sealing manner, a plurality of through holes (602) are formed between the heat conduction pipe (7) and the thermal insulation ring (4) corresponding to the upper wall of the installation box, and the upper ends of the through holes (602) penetrate through the upper wall of the thermal insulation layer (601).