CN211542137U

CN211542137U - Injection molding machine feeding device with crushing function

Info

Publication number: CN211542137U
Application number: CN202020011562.7U
Authority: CN
Inventors: 刘用熙
Original assignee: Aotai Plastic Industry Ruijin Co ltd
Current assignee: Aotai Plastic Industry Ruijin Co ltd
Priority date: 2020-01-04
Filing date: 2020-01-04
Publication date: 2020-09-22
Anticipated expiration: 2030-01-04

Abstract

The invention relates to a feeding device with a crushing function for an injection molding machine, which comprises a feed hopper, wherein the feed hopper comprises a cylindrical part, a conical part and a discharge pipe, wherein a grating is arranged in the joint between the cylindrical part and the conical part, a spherical protective cover with a hollow interior is arranged in the conical part below the grating, an exhaust pipe I extending into the protective cover is arranged on the side wall of the conical part, a stirring mechanism is arranged in the cylindrical part, wherein the cylindrical part is also internally provided with a filter screen, the filter screen is connected with the cover plate through a spring, the stirring mechanism comprises a motor positioned on the cover plate of the opening at the top of the cylindrical part, wherein the motor is provided with a rotating shaft which penetrates through the cover plate and the filter screen, and the rotating shaft which is positioned below the filter screen is provided with a stirring blade, the cover plate is also provided with an exhaust pipe II which runs through the cover plate and a feeding pipe which runs through the cover plate and the filter screen in sequence. The invention can effectively crush the materials which are likely to agglomerate and remove impurities in the materials.

Description

Injection molding machine feeding device with crushing function

Technical Field

The invention relates to the technical field of injection molding, in particular to a feeding device of an injection molding machine with a crushing function.

Background

At present, an injection molding machine is also called an injection molding machine or an injection machine, and is main molding equipment for manufacturing thermoplastic plastics or thermosetting plastics into plastic products with various shapes by utilizing a plastic molding die, wherein the injection molding machine is divided into a vertical type, a horizontal type and a full-electric type; the injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The existing feeding device for injection molding machine has some disadvantages, such as: the existing feeding device for the injection molding machine does not have a dust removal function, cannot clean light dust contained in injection molding particles, and also has the advantages that common materials are easy to agglomerate after being stored for a long time, so that the materials are not broken during feeding, and the subsequent heating and melting are easily influenced.

Disclosure of Invention

The invention aims to provide a feeding device of an injection molding machine with a crushing function, which can effectively crush materials which are likely to agglomerate and remove impurities in the materials.

The technical problem of the invention is mainly solved by the following technical scheme:

a feeding device with a crushing function for an injection molding machine comprises a feeding hopper, wherein the feeding hopper comprises a cylindrical part positioned above, a conical part positioned in the middle and a discharging pipe positioned below, a grid is arranged in the joint between the cylindrical part and the conical part, a protective cover which is spherical and is hollow inside is arranged in the conical part below the grid, the side wall of the upper half part of the protective cover is of a solid structure, air inlet holes are uniformly formed in the side wall of the lower half part of the protective cover, an air exhaust pipe I extending into the protective cover is arranged on the side wall of the conical part, a stirring mechanism is arranged in the cylindrical part, a filter screen capable of moving up and down is also arranged in the cylindrical part, a circle of supporting edge used for supporting the edge of the filter screen is arranged on the inner side wall of the cylindrical part, the filter screen is connected with a cover plate through a spring, wherein be provided with the pivot of running through apron and filter screen on the motor, and be located and be provided with stirring vane in the pivot between filter screen and the grid, still be provided with the exhaust column II that runs through the apron on the apron and run through the inlet pipe of apron and filter screen in proper order, wherein lie in the inlet pipe bottom of filter screen below and outwards turn over and have a round hem, exhaust column II end is provided with the connector, wherein is provided with the connecting pipe of being connected with the connector on the exhaust column I.

Preferably, the support edge is semicircular in cross section.

Preferably, the tail end of the exhaust pipe I is connected with an exhaust fan.

Preferably, the top end of the protective cover is welded and fixed with the bottom end of the grating.

Preferably, the edge of the grating is fixedly connected with the inner side wall of the feed hopper, and the aperture of the grating is of a quadrangular frustum pyramid structure.

Preferably, the stirring blades are at least two groups, wherein the length of the uppermost stirring blade is less than that of the lower stirring blade, and the feeding pipe is positioned right above the outer side of the tail end of the uppermost stirring blade.

The invention has the beneficial effects that:

1. after the materials are guided into the cylindrical part, the motor stirs the materials above the grating through the rotating shaft and the stirring blades, so that the materials which are likely to agglomerate are stirred, the stirred materials are uniformly screened out through the aperture of the grating, the subsequent melting work of the materials is prevented from being influenced by the agglomeration of the materials, and meanwhile, impurities in the materials can also be diffused in the upper half part of the cylindrical part in the stirring process so as to be removed conveniently.

2. When the exhaust fan works, impurities diffused at the top of the cylindrical part are extracted through the exhaust pipe I, the connecting pipe and the exhaust pipe II, so that the impurities diffused at the top of the cylindrical part are removed, the aim of removing the impurities in the materials above the feed hopper is fulfilled, meanwhile, after the materials are uniformly screened by the grating through the stirring mechanism, residual impurities in the materials can be diffused in the conical part, and at the moment, the impurities such as dust diffused in the conical part can flow into the protective cover through the air inlet hole and are extracted by the exhaust pipe I, so that the aim of removing the impurities in the materials from the lower part of the feed hopper is fulfilled, the materials finally removed with the impurities enter the injection molding machine through the discharge pipe, and the aim of removing the dust in the materials from the upper end and the lower end of the feed hopper in.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: 1. the device comprises a feed hopper, 101, a cylindrical part, 102, a conical part, 103, a discharge pipe, 2, a grid, 3, a protective cover, 4, an exhaust pipe I, 5, a stirring mechanism, 51, a motor, 52, a rotating shaft, 53, a stirring blade, 6, a cover plate, 7, a filter screen, 8, a supporting edge, 9, a spring, 10, an exhaust pipe II, 11, a feed pipe, 12, a folded edge, 13, a connector, 14 and a connecting pipe.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.

The utility model provides an injection molding machine feed arrangement with crushing function, includes feeder hopper 1, feeder hopper 1 includes the tube-shape part 101 that is located the top, is located middle toper part 102 and is located the discharging pipe 103 of below, and integrative the setting between the three.

Wherein, a grid 2 is arranged in the joint between the cylindrical part 101 and the conical part 102, a protective cover 3 which is spherical and has a hollow inner part is arranged in the conical part 102 below the grid 2, the top end of the protective cover 3 is welded and fixed with the bottom end of the grid 2, the side wall of the upper half part of the protective cover 3 is of a solid structure, air inlet holes are uniformly arranged on the side wall of the lower half part of the protective cover, an exhaust pipe I4 which extends into the protective cover 3 is arranged on the side wall of the conical part 102, the tail end of the exhaust pipe I4 is connected with an exhaust fan, when materials are placed on the top of the grid 2 and screened and uniformly dropped, dust impurities in the materials can diffuse in the falling process, the solid side wall of the top of the protective cover 3 can block the dropped materials in the falling process of the materials, the dropped materials are prevented from contacting the exhaust pipe I4 and are extracted, and the materials, meanwhile, impurities such as dust and the like which are filled in the conical part 102 can flow into the protective cover 3 through the air inlet holes and are pumped out by the air pumping pipe I4, wherein materials cannot enter the protective cover 3 through the air inlet holes and are pumped out, so that the purpose of removing the impurities in the materials is achieved, and the materials which are finally removed with the impurities enter the injection molding machine through the discharge pipe 103.

As shown in fig. 1, a stirring mechanism 5 is disposed in the cylindrical portion 101, the stirring mechanism 5 includes a motor 51 disposed on the cover plate 6 at the top opening of the cylindrical portion 101, wherein a rotating shaft 52 penetrating through the cover plate 6 and the filter screen 7 is disposed on the motor 51, and a stirring blade 53 is disposed on the rotating shaft 52 between the filter screen 7 and the grid 2, so that after the material is introduced into the cylindrical portion 101, the motor 51 stirs the material above the grid 2 through the rotating shaft 52 and the stirring blade 53, thereby stirring the material which may be agglomerated, uniformly sieving the stirred material through the aperture of the grid 2, preventing the material from agglomerating to affect the subsequent melting operation, and simultaneously, impurities in the material can also diffuse into the upper half portion of the cylindrical portion 101 during the stirring process to facilitate the removal.

An exhaust pipe II10 penetrating through the cover plate 6 is arranged on the cover plate 6, a connector 13 is arranged at the tail end of the exhaust pipe II10, and a connecting pipe 14 connected with the connector 13 is arranged on the exhaust pipe I4. Therefore, the connecting pipe 14 and the exhaust pipe II10 can be conveniently disassembled and assembled, and then impurities diffused at the top of the cylindrical part 101 can be extracted through the exhaust pipe I4, the connecting pipe 14 and the exhaust pipe II10 when the exhaust fan works, so that the impurities diffused at the top of the cylindrical part 101 are removed, and the purpose of removing the impurities in the materials is realized.

Meanwhile, a filter screen 7 capable of moving up and down is arranged in the cylindrical part 101, the filter screen 7 prevents the materials sputtered by the stirring mechanism 5 when the materials are stirred from contacting with the exhaust pipe II10 and being extracted, wherein a circle of supporting edge 8 for supporting the edge of the filter screen 7 is arranged on the inner side wall of the cylindrical part 101, the filter screen 7 is prevented from continuously moving downwards in the cylindrical part 101 by the supporting edge 8, the filter screen 7 is connected with the cover plate 6 by a spring 9, so that a gap is formed between the filter screen 7 and the cover plate 6, impurities such as dust stirred and raised by the stirring mechanism 5 can permeate the aperture of the filter screen 7 to be diffused in the cylindrical part 101 between the filter screen 7 and the cover plate 6, enough space for the diffused dust to be raised and extracted by the exhaust pipe II10, and the materials sputtered during stirring can push the filter screen 7 to move upwards and press the spring 9 to shrink, at the moment, the spring 9 can play a role in buffering the filter screen 7 in the telescopic process, so that the filter screen 7 is prevented from being easily damaged by materials.

In this embodiment, the feeding pipe 11 sequentially penetrating through the cover plate 6 and the filter screen 7 is further disposed on the cover plate 6, wherein a circle of folded edge 12 is outwardly folded at the bottom end of the feeding pipe 11 below the filter screen 7, so that when the filter screen 7 moves up and down, the circular hole on the filter screen 7 moves up and down on the rotating shaft 52 and the feeding pipe 11, so that the rotating shaft 52 and the feeding pipe 11 do not affect the up-and-down movement of the filter screen 7, the folded edge 12 can prevent the feeding pipe 11 from being drawn out from the circular hole on the filter screen 7, and when the feeding pipe 11 feeds materials, the materials cannot be guided into the cylindrical portion 101 above the filter screen 7 and are drawn out by.

In this embodiment, the number of the stirring blades 53 is two, wherein the length of the uppermost stirring blade 53 is smaller than the length of the lower stirring blade 53, as shown in fig. 1, since the feeding pipe 11 is located outside the uppermost stirring blade 53, the material falling from the feeding pipe 11 cannot directly hit the stirring blade 53, so that the safety of the stirring blade is improved, and the lower stirring blade 53 is covered by the material, so that the material falling from the feeding pipe 11 cannot be affected.

The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A feeding device with a crushing function for an injection molding machine comprises a feeding hopper and is characterized in that the feeding hopper comprises a cylindrical part positioned above, a conical part positioned in the middle and a discharging pipe positioned below, wherein a grid is arranged in the joint between the cylindrical part and the conical part, a protective cover which is spherical and is hollow inside is arranged in the conical part below the grid, the side wall of the upper half part of the protective cover is of a solid structure, air inlet holes are uniformly formed in the side wall of the lower half part of the protective cover, an exhaust pipe I extending into the protective cover is arranged on the side wall of the conical part, a stirring mechanism is arranged in the cylindrical part, a filter screen capable of moving up and down is further arranged in the cylindrical part, a circle of supporting edge used for supporting the edge of the filter screen is arranged on the inner side wall of the cylindrical part, the filter screen is connected with a cover plate through a spring, wherein be provided with the pivot of running through apron and filter screen on the motor, and be located and be provided with stirring vane in the pivot between filter screen and the grid, still be provided with the exhaust column II that runs through the apron on the apron and run through the inlet pipe of apron and filter screen in proper order, wherein lie in the inlet pipe bottom of filter screen below and outwards turn over and have a round hem, exhaust column II end is provided with the connector, wherein is provided with the connecting pipe of being connected with the connector on the exhaust column I.

2. The feeding device of an injection molding machine with a crushing function as claimed in claim 1, wherein the supporting edge is semicircular in cross section.

3. The feeding device of the injection molding machine with the crushing function as claimed in claim 1, wherein an exhaust fan is connected to the tail end of the exhaust pipe I.

4. The feeding device of an injection molding machine with a crushing function as claimed in claim 1, wherein the top end of the protective cover is fixedly welded with the bottom end of the grating.

5. The feeding device of an injection molding machine with a crushing function as claimed in claim 1, wherein the edge of the grating is fixedly connected with the inner side wall of the feed hopper, and the aperture of the grating is in a quadrangular frustum pyramid structure.

6. The feeding device of an injection molding machine with a crushing function according to claim 1, wherein the number of the stirring blades is at least two, wherein the length of the uppermost stirring blade is smaller than that of the lower stirring blade, and the feeding pipe is positioned right above the outer side of the tail end of the uppermost stirring blade.