CN218948255U

CN218948255U - Vertical injection mechanism for supercritical foaming molding

Info

Publication number: CN218948255U
Application number: CN202223023390.3U
Authority: CN
Inventors: 余廷洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-05-02
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to a vertical injection mechanism for supercritical foaming molding, which comprises mixing equipment, a quantifying device connected with the mixing equipment and a mold connected with the quantifying device for outputting molding materials; the quantitative device is provided with a quantitative barrel with a quantitative space formed inside, a quantitative pusher pushing the molding material out of the quantitative barrel, a quantitative space capable of loading the output end to output the molding material, and a connecting channel connected with the die and outputting the molding material into the die, wherein the connecting channel is vertically designed with the die, and the connecting channel is linearly arranged from the quantitative space to the molding groove, so that the connecting channel can linearly convey the molding material into the die by virtue of the design, and the quantitative conveying can be smoothly and accurately performed, thereby effectively improving the molding quality.

Description

Vertical injection mechanism for supercritical foaming molding

Technical Field

The present utility model relates to a foam molding injection mechanism, and more particularly to a vertical injection mechanism for supercritical foam molding.

Background

The foaming plastic is generally formed by feeding plastic into a feeding pipe provided with a screw rod, injecting gas into the feeding pipe, arranging a heating device on the feeding pipe, fully mixing the melted plastic with the gas under the stirring of the screw rod after melting the plastic, forming plastic melt containing bubbles, outputting the melt from the front end of the feeding pipe, and cooling and forming after passing through a die.

Referring to fig. 1, a conventional foam molding injection mechanism 1 includes a raw material device 11 for outputting a first material, a mixing device 12 connected to the raw material device 11 and inputting a second material, a dosing device 13 for mixing the mixing device 12, and a die set 14 for receiving the molding material output from the dosing device 13; wherein, the die set 14 is provided with a connecting channel 141 connected with the quantitative device 13 and a molding groove 142 connected with the connecting channel 141 and used for inputting and molding the molding material; when the molding machine is used, the molding material is introduced into the molding groove 142 through the connecting channel 141 by the quantitative device 13, after the molding space in the mold set 14 is filled, the plastic in the molding space is cooled to solid and the molding space is cooled to a proper temperature, and then the molding process is completed, however, when the molding injection mechanism 1 is arranged and enters the molding groove 142 through the connecting channel 141, the connecting channel 141 presents a bending state, and the plastic in a molten state flows through the connecting channel 141 in the bending state, so that the pressure is changed in the process of being input, and the plastic cannot uniformly enter the molding groove 142, so that the subsequent quality is relatively unstable, and the situation is improved; furthermore, the apparatus cannot be used for supercritical materials, and a constant pressure of gas needs to be injected into the die set 14 during the mixing and feeding of the supercritical materials into the die set 142, and air in the forming tank 142 needs to be pumped out for foaming when the forming materials are fed into the forming tank 142, and the conventional apparatus cannot be used for supercritical foaming technology, and needs to be improved.

Disclosure of Invention

Therefore, the utility model aims to provide a vertical injection mechanism for supercritical foaming molding, which can perform quantitative conveying more smoothly and accurately, and further effectively improve the molding quality.

Thus, the vertical injection mechanism for supercritical foam molding of the present utility model comprises:

a mixing device having a mixing drum with a mixing space formed therein, a first injector for inputting a first material into the mixing space, a second injector for inputting a second material into the mixing space, and a pusher for pushing an output of the mixing drum, wherein the mixing drum has an input end and an output end in communication with the mixing space, and the first material and the second material are mixed in the mixing drum to form a molding material, the first injector is disposed adjacent to the input end, and the second injector is disposed adjacent to the output end;

the quantitative device is provided with a quantitative barrel with a quantitative space formed in the quantitative barrel, a quantitative pusher pushing the molding material out of the quantitative barrel, and a quantitative space capable of loading the output end to output the molding material and a connecting channel outputting the molding material in the quantitative space are arranged in the quantitative barrel; a kind of electronic device with high-pressure air-conditioning system

The die is provided with a feeding air extraction die unit and a forming die unit which is connected with the feeding air extraction die unit and is internally provided with a forming groove, the feeding air extraction die unit is provided with a feeding channel which is at least connected with the connecting channel and the forming groove, and a plurality of gas channels which are communicated with the forming groove and are used for extracting gas in the forming groove, meanwhile, the connecting channel and the die are vertically designed, and the connecting channel and the feeding channel between the quantitative space and the forming groove are linearly arranged, so that the connecting channel can linearly convey the forming material into the forming groove.

Further, the feeding and air extracting mold unit is further provided with a plurality of sub-channels between the feeding channel and the forming groove, so that part of forming material enters the forming groove from the sub-channels.

Further, the gas channel is additionally connected with a gas inlet and outlet device so as to pump out the gas in the forming groove.

Therefore, after the technical scheme is adopted, the connecting channel can linearly convey the molding material into the molding groove by virtue of the design, so that quantitative conveying can be smoothly and accurately carried out, the subsequent molding quality is prevented from being influenced due to uneven pressure in the conveying process, and further the molding quality is effectively improved.

Drawings

FIG. 1 is a schematic diagram of a conventional structure;

FIG. 2 is a schematic structural view of a first preferred embodiment of the present utility model;

FIG. 3 is a schematic diagram of the operation of the first embodiment of the present utility model;

FIG. 4 is a schematic diagram of the operation of the first embodiment of the present utility model;

fig. 5 is a schematic diagram of the operation (III) of the first preferred embodiment of the present utility model.

Symbol description:

[ utility model ]

3 vertical injection mechanism

31 mixing apparatus

311 mixing drum

312 first injector

313 second injector

314 pusher

3111 mixing space

3112 input terminal

3113 output terminal

32 quantitative device

321, quantitative barrel

322, definite pusher

3211 quantitative space

3212 connection channel

33 mould

331 feeding air extracting die unit

3311 feed channel

3312 gas passage

3313 Secondary channel

332 Forming die Unit

3321 shaping groove

34, an air inlet and outlet device.

Detailed Description

The foregoing and other technical aspects, features and advantages of the present utility model will become more apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings.

Referring to fig. 2, a preferred embodiment of the vertical injection mechanism 3 for supercritical foam molding according to the present utility model, the vertical injection mechanism 3 comprises a mixing device 31, a dosing device 32 connected to the mixing device 31, and a mold 33 connected to the dosing device 32 for outputting molding materials; the mold 33 includes a material-feeding and air-extracting mold unit 331 and a forming mold unit 332 connected to the material-feeding and air-extracting mold unit 331 and having a forming slot 3321 formed therein, wherein the material-feeding and air-extracting mold unit 331 has at least one material-feeding channel 3311 connected between the connecting channel 3212 of the quantitative device 32 and the forming slot 3321, and a plurality of gas channels 3312 connected to the forming slot 3321 and extracting gas from the forming slot 3321, and the forming slot 3321 is provided with a foaming material for foaming after a forming material is fed, and in this embodiment, the gas channels 3312 may be additionally connected with a gas-feeding and air-extracting device 34 to extract gas from the forming slot 3321, and the material-feeding and air-extracting mold unit 331 is further provided with a plurality of sub-channels 3313 interposed between the material-feeding channel 3311 and the forming slot 3321, so that a part of the forming material can enter the forming slot 3321 from the sub-channels 3313.

Still further, the mixing apparatus 31 has a mixing drum 311 with a mixing space 3111 formed therein, a first injector 312 for inputting a first material into the mixing space 3111, a second injector 313 for inputting a second material into the mixing space 3111, a pusher 314 for pushing the output of the mixing drum 311, the mixing drum 311 having an input 3112 communicating with the mixing space 3111, and an output 3113 communicating with the mixing space 3111 and the dosing device 32, and the first material and the second material being mixed in the mixing drum 311 to form a molding material, the first injector 312 being disposed adjacent to the input 3112, the second injector 313 being disposed adjacent to the output 3113, and the first material being a plastic material, the second material being a foaming material (or inert gas), and the first material and the second material being mixed in the mixing space 3111 and then being output into the dosing space 3211.

Furthermore, the quantifying device 32 has a quantifying cylinder 321 with a quantifying space 3211 formed therein, a pushing device 322 pushing the molding material out of the quantifying cylinder 321, and the quantifying cylinder 321 has a quantifying space 3211 for loading the molding material outputted from the output end 3113 therein, and a connecting channel 3212 for connecting the mold 33 and outputting the molding material into the molding tank 3321, wherein the connecting channel 3212 is perpendicular to the mold 33, and the connecting channel 3212 and the feeding channel 3311 between the quantifying space 3211 and the molding tank 3321 are arranged in a straight line, so that the connecting channel 3212 can linearly convey the molding material into the molding tank 3321.

Referring to fig. 2 to 4, in use, the first injector 312 inputs a first material into the mixing drum 311, and the second injector 313 inputs a second material into the mixing drum 311 at the same time, so that after the first material and the second material are mixed in the mixing drum 311 to form a molding material, the molding material is directly mixed in the mixing drum 311 and injected into the first material and the second material, and the pusher 314 pushes the molding material onto the metering drum 321, so that the first material and the second material are fully mixed, and each time the metering drum 321 is filled with the molding material, the molding material is output to the molding groove 3321, and the metering drum 322 is positioned at the position of the metering drum 321, so that the amount of the molding material can be loaded into the metering drum 321, and after the molding material output from the mixing drum 311 is filled in the metering drum 321, the molding material is matched with fig. 5, the metering drum 322 directly mixes the molding material in the metering space 3211 through the connecting channel 3212, the connecting channel 33 is more smoothly arranged, and the molding channel 332 is more smoothly connected to the connecting channel 332, so that the molding channel 332 is more smoothly connected to the connecting channel 332, and the molding channel 3321 is more smoothly arranged, so that the molding channel 332 is more easily; in addition, due to the design of the secondary channel 3313, the molding material can be more evenly input into the molding groove 3321, meanwhile, when the molding material is not input into the molding groove 3321, the air inlet and outlet device 34 can input air into the molding groove 3321, and when the molding material is input into the molding groove 3321, the air inlet and outlet device 34 can synchronously extract the air in the mold 33 through the air channels 3312, so that the molding material can be foamed after being input into the molding groove 3321, and further the quantitative and stable foaming effect can be achieved.

In summary, the vertical injection mechanism for supercritical foaming molding of the present utility model uses the design of the mixing device, the quantifying device and the mold, and the connecting channel is arranged in a straight line from the quantifying space to the molding groove, so that the design can make the connecting channel transport the molding material into the molding groove in a straight line, and the quantitative transport can be performed more smoothly and accurately, and further the molding quality can be effectively improved, so as to achieve the purpose of the present utility model.

However, the foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, i.e., the utility model is not limited to the specific embodiments described herein, but is to be accorded the full scope of the claims.

Claims

1. A vertical injection mechanism for supercritical foam molding, comprising:

2. The vertical injection molding machine according to claim 1, wherein the feed suction die unit is further provided with a plurality of sub-channels interposed between the feed channel and the molding tank, so that a part of molding material enters the molding tank from the sub-channels.

3. The vertical injection molding machine according to claim 1, wherein the gas passage is additionally connected with a gas inlet and outlet device for exhausting the gas in the molding tank.