CN210999711U - Novel waste plastic melting injection molding machine - Google Patents

Abstract

The utility model relates to a novel waste plastic melting injection molding machine, the hopper is equipped with to injection molding machine melting room top, and inside wind passes through the heating pipe heating, by fan drive circulation, the rabbling mechanism below is the screen cloth, and the awl is connected to the screen cloth below and connects the fill, and the awl connects to fight and has reinforced helical blade in, and the awl connects the below to connect and connects the barrel, has the screw rod in the barrel, and the barrel is connected with the storage vat, and the other cylinder that has of storage vat, storage vat below links to each other with the feed cylinder, and is equipped with the ooff valve between the feed cylinder, has the piston in the feed cylinder, and there is the nozzle ooff valve in the. The utility model discloses structural design is compact, adopts hot-blast direct melting waste plastic, need not broken and wash the waste plastic operation, reduces the processing step, directly moulds plastics the melting material to the finished product at last, saves the extrusion cooling granulation remelting process of moulding plastics, and the energy can be saved improves work efficiency.

Description

A new type of waste plastic melt injection molding machine

technical field

The utility model relates to the technical field of injection molding machines, in particular to a novel waste plastic melt injection molding machine.

Background technique

The application range of plastics is becoming more and more extensive, replacing metal, wood, paper, etc., with the widespread use of plastics, a large number of waste plastics appear. . The recycling and resource development of waste plastics is a profound understanding of the environment and resources, and it is a way of life to reduce the environmental pollution and resource waste caused by waste plastics.

The most common way of recycling waste plastics in my country is to recycle and granulate. The traditional granulation process is to crush and clean the recycled waste plastics, and then extrude them through a screw for granulation. The crushing noise is loud, dusty, and sewage is generated during work. cause secondary pollution.

Utility model content

(1) Technical problems solved

The purpose of this utility model is to overcome the deficiencies of the prior art. The utility model provides a new type of waste plastic melting and injection molding machine. The specific method is that the injection molding machine adopts hot air to directly melt the waste plastic in the process, eliminating the need for crushing in the traditional process. And cleaning process, reducing operation steps, avoiding pollution, and finally injecting the melt directly into the finished product, eliminating the need for extrusion, cooling, granulation, and remelting injection molding process, saving energy and improving work efficiency.

(2) Technical solutions

The technical scheme of the utility model: a new type of waste plastic melting and injection molding machine, the structure of the injection molding machine includes a hopper, a box cover, a hot air circulation box, a melting chamber, a fan, a heating pipe, a stirring mechanism, a screen, a cone connecting bucket, Feeding screw blades, barrels, screws, accumulators, cylinders, on-off valves, pistons, barrels, injection molds, nozzle on-off valves and racks.

The top of the injection molding machine is provided with a box cover, the top of the box cover is fixed with a welding hopper, the outer wall of the melting chamber is connected to the hot air circulation box, and a stirring mechanism is installed inside. The shaft is connected, and the barrel is connected to the bottom of the cone. There is a screw in the barrel. The screw is connected with the drive motor. The barrel is connected with the barrel. There is a piston in the barrel and an injection mold at the outlet of the barrel.

The hot air circulation box includes a hot air circulation box shell, a fan, and a heating pipe. The fan is symmetrically installed in the circulation box shell, and there is a heating pipe under the fan. Two fans are symmetrically arranged to recycle the hot air in the melting room, and the heat is supplemented by the heating pipe, which can effectively heat and melt the material, increase the work efficiency, and effectively save energy.

The injection molding system of the injection molding machine includes a screw, a barrel, a material storage cylinder, a cylinder, an on-off valve, a piston, a barrel, an injection mold and a nozzle on-off valve.

There is a screw in the barrel of the injection molding machine, the barrel is connected with the material storage cylinder, there is a cylinder next to the material storage cylinder, the lower part of the material storage cylinder is connected with the material barrel, an on-off valve is arranged between the material barrel, and there is a piston in the material barrel, There is a nozzle switch valve at the outlet of the barrel, and the outlet is connected to the injection mold.

The waste plastic enters the melting chamber from the hopper, and is heated and melted in contact with the hot air. The stirring mechanism stirs the material to make it melted by heat. The molten plastic melt enters the barrel through the cone hopper, and is conveyed to the storage tank by the screw extrusion. At a certain stage, the on-off valve is opened and delivered to the barrel, then the on-off valve is closed, and the piston is injected into the mold through the nozzle on-off valve.

When the switch valve is closed, the cylinder next to the storage tank can push the piston in the cylinder to form air pressure when feeding, and the air pressure is released when the switch valve is opened to push the melt into the barrel smoothly. The on-off valve controls the feeding in the barrel and is controllable during operation.

A heating resistance device and a heat insulation device are attached to the outside of the barrel and the barrel to ensure the temperature of the melt during transportation and prevent solidification.

(3) Beneficial effects

The utility model has the advantages that the design is compact, the waste plastics are directly melted by hot air, the melted plastic melt is extruded and transported into the barrel through the screw, and injected into the injection mold through the piston, and the recovered plastic does not need to be pulverized. Therefore, the generation of noise and dust is avoided, and the working environment is improved; the hot air is recycled, no waste water and waste gas are discharged, and the environment is friendly. At the same time, the plastic melt is directly injected into the finished product, eliminating the need for extrusion, cooling, granulation, and remelting and injection molding, saving energy and improving work efficiency.

Description of drawings

1 is a schematic diagram of the overall structure of the waste plastic melt injection molding machine according to the present invention;

In the figure, 1-1 is a stirring transmission mechanism, 1-2 is a hopper, 1-3 is a melting chamber, 1-4 is a stirring mechanism, 1-5 is a fan, 1-6 is a screen, 1-7 is a heating pipe, 2-1 is the feeding screw blade, 2-2 is the cone receiving bucket, 3-1 is the cylinder, 3-2 is the storage cylinder, 3-3 is the switch valve, 3-4 is the injection mold, and 3-5 is the nozzle switch Valve, 3-6 is plastic melt, 3-7 is barrel, 3-8 is barrel, 3-9 is screw, 3-10 is piston, 3-11 is frame;

2 and 3 are schematic diagrams of the overall structure of another simplified waste plastic melt-injection molding machine that removes the storage cylinder;

In the figure, 4-1 is the barrel, 4-2 is the screw, 4-3 is the injection mold, 4-4 is the barrel, 4-5 is the piston, 4-6 is the plastic melt, and 4-7 is the nozzle switch valve ;

4 is a schematic diagram of the overall structure of another simplified waste plastic melt injection molding machine for removing the barrel screw;

5-1 is the mold, 5-2 is the nozzle switch valve, 5-3 is the plastic melt, 5-4 is the barrel, and 5-5 is the piston.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The schematic diagram of the overall structure of the waste plastic melting and injection molding machine of the present invention is shown in Figure 1. Its structure includes a stirring transmission mechanism 1-1, a hopper 1-2 is installed above the melting chamber 1-3, and the internal air is heated by the heating pipe 1-7, It is driven and circulated by the fan 1-5. Below the stirring mechanism 1-4 is the screen 1-6. The bottom of the screen is connected to the cone hopper 2-2. There are feeding screw blades 2-1 in the cone hopper. The storage cylinder 3-2 is connected, there is a screw 3-9 in the barrel 3-8, a cylinder 3-1 next to the storage cylinder 3-2, and a plastic melt 3-6 in the barrel 3-7, which passes through the piston 3 -10, injection into the injection mold 3-4 through the nozzle switch valve 3-5.

The working principle of the present invention: the waste plastic is put into the hopper 1-2, the material passes through the melting chamber 1-3, and the material is stirred by the stirring mechanism 1-4 to make it heated evenly, and the molten material passes through the screen mesh 1-6, the cone The hopper 2-2 enters the barrel 3-8, and is squeezed by the screw 3-9 into the storage cylinder 3-2. First close the switch valve 3-3 to store the material. After the storage is completed, open the switch valve 3-3 to enter the material. In the barrel 3-7, the on-off valve 3-3 is then closed, and the molten material is injected by the piston 3-10 into the mold 3-4 to generate a product.

The schematic diagram of the overall structure of another simplified waste plastic melt-injection molding machine that removes the storage cylinder is shown in Figure 2 and Figure 3. The lower structure barrel 4-1 has a screw 4-2, the barrel 4-1 and the barrel 4-4 are connected, there is a piston 4-5 in the barrel, a nozzle switch valve 4-7 is located at the outlet of the barrel 4-4, and the outlet is connected to the injection mold 4-3. The molten material 4-6 is extruded into the barrel 4-4 through the screw 4-2, injected by the piston 4-5, and passed through the nozzle switch valve 4-7 to the injection mold 4-3 to generate a product.

The schematic diagram of the overall structure of another simplified waste plastic melt injection molding machine that removes the barrel and screw is shown in Figure 4: the lower cone is connected to the barrel 5-4, the barrel 5-4 has a piston 5-5, and the barrel There is a nozzle switch valve 5-2 at the outlet of 5-4, which is connected to the injection mold 5-1. The molten material 5-3 enters the barrel 5-4 through the feeding screw blade, and is injected by the piston 5-5, and the molten material is injected into the injection mold 5-1 through the nozzle switch valve 5-2 to generate a product.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (3)

1. A novel waste plastic melting injection molding machine comprises a hopper, a box cover, a hot air circulation box body, a melting chamber, a fan, a heating pipe and a stirring mechanism; the method is characterized in that: the injection molding machine is characterized in that a box cover is arranged above the injection molding machine, a welding hopper is fixedly arranged above the box cover, the outer wall of a melting chamber is connected with a hot air circulation box body, fans are symmetrically arranged in a shell of the circulation box body, heating pipes are arranged below the fans, two fans are symmetrically arranged to recycle hot air in the melting chamber, a stirring mechanism is arranged in the circulation box body and connected with a stirring transmission mechanism at the top of the injection molding machine, a cone receiving hopper is connected below the circulation box body, the stirring mechanism is coaxially connected with a feeding spiral blade in the cone receiving hopper, a machine barrel is connected below the cone receiving hopper, a screw rod is arranged in the machine barrel and connected with a storage cylinder, an air cylinder is arranged beside the storage cylinder, the lower portion of the storage cylinder is connected with a material barrel, a switch valve is arranged between the storage cylinder and.

2. The novel waste plastic melting injection molding machine according to claim 1, characterized in that: the outer parts of the machine barrel and the charging barrel are pasted with a heating resistance device and a heat preservation device.

3. The novel waste plastic melting injection molding machine according to claim 1, characterized in that: the heating pipe adopts an electric heating pipe and is connected with an external power supply in series to form a heating loop.

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