CN209920426U

CN209920426U - Injection molding mechanism of injection molding machine

Info

Publication number: CN209920426U
Application number: CN201920401769.2U
Authority: CN
Inventors: 苗永卫; 邓银苍; 王玉鹏
Original assignee: Tianjin Fuqiangxin Plastic Machinery Technology Co Ltd
Current assignee: Tianjin Fuqiangxin Plastic Machinery Technology Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-01-10
Anticipated expiration: 2029-03-28

Abstract

The utility model relates to an injection molding mechanism of an injection molding machine, which comprises a feeding barrel and an injection tube, wherein the feeding barrel is connected with the injection tube in a penetrating way, the lower charging barrel is provided with a material mixing device which comprises a material mixing motor, a main gear, a pinion and a material mixing shaft, the mixing motor is connected with the main gear, the main gear is in meshed connection with the pinion, the mixing shaft is connected with the pinion, an accommodating cavity is arranged in the mixing shaft, an electric heating wire is arranged in the containing cavity, the outer surface of the mixing shaft is connected with a spiral sheet, a first water storage cavity is arranged between the inner wall and the outer wall of the charging barrel, be provided with water inlet and the delivery port that is linked together with first water storage chamber on this feed cylinder's the lateral wall, the water inlet is connected with water supply assembly, and the design of first water storage chamber and electric heating wire can improve the heating efficiency to the raw materials to the dual heating of raw materials.

Description

Injection molding mechanism of injection molding machine

Technical Field

The utility model relates to a technical field of moulding plastics especially relates to a mechanism of moulding plastics of injection molding machine.

Background

Injection molding is the most efficient method of forming plastic, and injection molding machines are very important in plastic forming machines. China is the largest global injection molding machine producing country, and the yield accounts for more than 70% of the annual yield of the world. The injection molding machine utilizes forming die to make various required shapes with thermoplasticity plastics or thermosetting plastics, and can keep the former equipment of plastic products of original material performance, and the mechanism function of moulding plastics among the prior art is comparatively single, inconvenient staff's use, in addition, a section of thick bamboo heating efficiency of moulding plastics among the prior art is slow to can influence the efficiency of moulding plastics, the utility model discloses a new solution is proposed to above problem.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an injection molding machine's mechanism of moulding plastics.

The utility model discloses an injection molding mechanism of injection molding machine, including lower feed cylinder and injection tube, lower feed cylinder and injection tube penetrating connection, be provided with the compounding device on the lower feed cylinder, the compounding device includes compounding motor, master gear, pinion and compounding axle, the compounding motor links to each other with the master gear, master gear and pinion meshing connection, the compounding axle links to each other with the pinion, the compounding axle is inside to be provided with and to hold the chamber, should hold the intracavity portion and be provided with electric heating wire, the compounding axle surface is connected with the flight, be provided with first water storage chamber between the inner wall of lower feed cylinder and the outer wall, be provided with the water inlet and the delivery port that are linked together with first water storage chamber on the lateral wall of lower feed cylinder, the water inlet is connected with water supply assembly, water supply assembly includes water tank, raceway and water supply pump, water supply pump one end links to each other end through the raceway and water inlet links to each other, the water tank is internally provided with a heater, the injection tube is provided with a material pushing assembly, a second water storage cavity is arranged between the inner wall and the outer wall of the injection tube, and the second water storage cavity is connected with the water tank through a circulating assembly.

As preferred, the utility model discloses the improvement has, it includes pushes away material cylinder, support and injection pole to push away the material subassembly, injects pole slidable and installs inside the injection tube, injects the pole and pushes away the material cylinder and link to each other, pushes away the material cylinder and passes through the support and link to each other with the injection tube.

In a further preferred, the utility model discloses the improvement has, the circulation subassembly includes circulating pump and circulating pipe, circulating pump one end links to each other with second water storage chamber, and the other end passes through circulating pipe and links to each other with the water tank.

In a further preferred, the utility model discloses the improvement has, be provided with the valve that dams on raceway and the circulating pipe respectively.

In a further preferred, the utility model discloses the improvement has, the compounding motor passes through the support frame and installs in feed cylinder top down.

In a further preferred aspect, the present invention is improved in that the support frame and the lower barrel and the support frame and the injection barrel are connected together by welding respectively.

In a further preferred embodiment, the outer walls of the lower charging barrel and the injection barrel are provided with heat-insulating layers.

In a further aspect, the utility model discloses the improvement has, the heat preservation is rock wool.

Advantageous effects

The utility model discloses well first water storage chamber and electric heating wire's design can be to the dual heating of raw materials, improve the heating efficiency to the raw materials, in addition, compounding motor and compounding axle direct contact can be avoided in master gear and pinion's cooperation design, improve the stability of compounding axle rotation, it is epaxial to make the produced vibrations of compounding motor can not transmit the compounding, waste heat after the design in second water storage chamber can be fine utilization raw materials heating, in addition, carry the water in the second water storage chamber to the water tank through the circulation subassembly, thereby the heating efficiency of heater to the water tank normal water has been improved.

Drawings

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

fig. 2 is a schematic view of the construction of the mixing shaft of fig. 1.

In the drawings, the reference numbers: 1. feeding the material barrel; 2. an injection tube; 3. a mixing motor; 4. a main gear; 5. a pinion gear; 6. a mixing shaft; 7. an electric heating wire; 8. a spiral sheet; 9. a first water storage cavity; 10. a water tank; 11. a water delivery pipe; 12. a water supply pump; 13. a heater; 14. a second water storage cavity; 15. a material pushing cylinder; 16. a support; 17. an injection rod; 18. a circulation pump; 19. a circulating water pipe; 20. a shutoff valve; 21. a support frame.

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 intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 2, the utility model discloses an injection molding mechanism of injection molding machine, including lower feed cylinder 1 and injection tube 2, lower feed cylinder 1 is connected with injection tube 2 penetrating, be provided with the compounding device on the feed cylinder 1 down, the compounding device includes compounding motor 3, master gear 4, pinion 5 and compounding axle 6, compounding motor 3 links to each other with master gear 4, and master gear 4 is connected with pinion 5 meshing, compounding axle 6 links to each other with pinion 5, the inside chamber that holds that is provided with of compounding axle 6, the intracavity portion that should hold is provided with electric heating wire 7, the outer surface of compounding axle 6 is connected with flight 8, be provided with first water storage chamber 9 between the inner wall of lower feed cylinder 1 and the outer wall, be provided with the water inlet and the delivery port that are linked together with first water storage chamber 9 on the lateral wall of this lower feed cylinder 1, the water inlet is connected with the water supply subassembly, the water supply subassembly includes water tank 10, The water supply device comprises a water conveying pipe 11 and a water supply pump 12, wherein one end of the water supply pump 12 is connected with a water tank 10, the other end of the water supply pump is connected with a water inlet through the water conveying pipe 11, a heater 13 is arranged inside the water tank 10, a material pushing assembly is arranged on the injection tube 2, a second water storage cavity 14 is arranged between the inner wall and the outer wall of the injection tube 2, and the second water storage cavity 14 is connected with the water tank 10 through a circulating assembly.

In this embodiment, for better use of the pushing assembly, the pushing assembly includes a pushing cylinder 15, a bracket 16 and an injection rod 17, the injection rod 17 is slidably mounted inside the syringe 2, the injection rod 17 is connected to the pushing cylinder 15, and the pushing cylinder 15 is connected to the syringe 2 through the bracket 16.

In this embodiment, in order to better use the circulation assembly, the circulation assembly includes a circulation pump 18 and a circulation water pipe 19, and the circulation pump 18 is connected to the second water storage chamber 14 at one end and connected to the water tank 10 through the circulation water pipe 19 at the other end.

In this embodiment, for better use of the water pipe and the water circulating pipe, the water pipe 11 and the water circulating pipe 19 are respectively provided with a shut-off valve 20.

In the embodiment, in order to better mount the mixing motor on the lower barrel, the mixing motor 3 is mounted above the lower barrel 1 through a support frame 21.

In the present embodiment, in order to better connect the support frame and the lower barrel and the support frame and the injection tube together, the support frame 21 and the lower barrel 1, and the support frame 16 and the injection tube 2 are respectively connected together by welding.

In the present embodiment, for better use of the lower charging barrel and the injection cylinder, the outer walls of the lower charging barrel 1 and the injection cylinder 2 are provided with an insulating layer.

In this embodiment, for better use of the insulation layer, the insulation layer is rock wool.

Example 2:

when using, the raw materials at first enters into feed cylinder 1, start compounding motor 3, compounding motor 3 drives the rotation of compounding axle 6, the raw materials is carried the raw materials downwards under the effect of flight 8, and simultaneously, electric heating wire 7 heats the raw materials, heater 13 heats the water in to water tank 10 simultaneously, water after the heating is carried to first water storage chamber 9 in, thereby to the raw materials heating, the dual heating can improve the heating efficiency of raw materials, the raw materials enters into injection tube 2 after carrying downwards, push away material cylinder 15 and drive injection rod 18, injection rod 17 promotes the raw materials, with raw materials propelling movement to the mould in.

Moreover, the terms "mounted," "disposed," "connected," and "nested" are to be construed broadly and may, for example, be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; they may be directly connected or indirectly connected through an intermediate or internal communication between two devices, elements or components, and the specific meanings of the above terms in the present invention should be understood by those skilled in the art according to the specific situation.

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

Claims

1. An injection molding mechanism of an injection molding machine comprises a lower charging barrel (1) and an injection tube (2), wherein the lower charging barrel (1) is in through connection with the injection tube (2), and is characterized in that a material mixing device is arranged on the lower charging barrel (1) and comprises a material mixing motor (3), a main gear (4), an auxiliary gear (5) and a material mixing shaft (6), the material mixing motor (3) is connected with the main gear (4), the main gear (4) is in meshed connection with the auxiliary gear (5), the material mixing shaft (6) is connected with the auxiliary gear (5), a containing cavity is arranged inside the material mixing shaft (6), an electric heating wire (7) is arranged inside the containing cavity, the outer surface of the material mixing shaft (6) is connected with a spiral piece (8), a first water storage cavity (9) is arranged between the inner wall and the outer wall of the lower charging barrel (1), a water inlet and a water outlet which are communicated with the first water storage cavity (9) are arranged on the side wall of the lower charging barrel (1), the water inlet is connected with water supply assembly, water supply assembly includes water tank (10), raceway (11) and working shaft (12), working shaft (12) one end links to each other with water tank (10), and the other end passes through raceway (11) and links to each other with the water inlet, water tank (10) inside is provided with heater (13), be provided with on injection tube (2) and push away the material subassembly, be provided with second water storage chamber (14) between this injection tube (2) inner wall and the outer wall, second water storage chamber (14) link to each other with water tank (10) through the circulation subassembly.

2. The injection mechanism of an injection molding machine according to claim 1, wherein the pushing assembly comprises a pushing cylinder (15), a bracket (16) and an injection rod (17), the injection rod (17) is slidably mounted inside the injection tube (2), the injection rod (17) is connected with the pushing cylinder (15), and the pushing cylinder (15) is connected with the injection tube (2) through the bracket (16).

3. An injection mechanism of an injection molding machine according to claim 2, wherein said circulating means comprises a circulating pump (18) and a circulating water pipe (19), said circulating pump (18) being connected at one end to the second water storage chamber (14) and at the other end to the water tank (10) through the circulating water pipe (19).

4. An injection mechanism of an injection molding machine according to claim 3, wherein the water pipe (11) and the water circulating pipe (19) are respectively provided with a shut-off valve (20).

5. An injection mechanism of an injection molding machine according to claim 1, wherein said mixing motor (3) is mounted above the lower barrel (1) through a support frame (21).

6. An injection mechanism of an injection molding machine according to claim 5, wherein the support frame (21) and the feed cylinder (1) and the support frame (16) and the injection cylinder (2) are connected together by welding.

7. The injection mechanism of an injection molding machine according to claim 6, wherein the outer walls of the lower barrel (1) and the injection cylinder (2) are provided with an insulating layer.

8. The injection molding machine injection mechanism of claim 7, wherein said insulation layer is rock wool.