CN212636474U

CN212636474U - Polylactic acid is moulded plastics with heating melting device

Info

Publication number: CN212636474U
Application number: CN202021384607.1U
Authority: CN
Inventors: 胡育强
Original assignee: Hunan Juyi New Material Technology Co ltd
Current assignee: Hunan Juyi New Material Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-03-02
Anticipated expiration: 2030-07-15

Abstract

The utility model belongs to the technical field of polylactic acid processing, in particular to a heating and melting device for polylactic acid injection molding, which comprises a melting tank and a conveying cylinder communicated with the melting tank, wherein the melting tank is internally provided with a heating mechanism for heating polylactic acid, the melting tank is internally provided with a heating cavity for placing the polylactic acid, the bottom of the melting tank is fixedly connected with a tank cover, and the top of the tank cover is fixedly connected with a first motor; let polylactic acid solution mix together with other raw materials, the melting speed of polylactic acid has been accelerated, and simultaneously, also avoided leading to the inhomogeneous condition of solution composition distribution to take place because of the mixed solution produces the sediment in awl barrel, the product quality after having improved moulding plastics, and the work efficiency is improved, can make mixed solution remain the motion state all the time when transporting mixed solution, let the more even of composition distribution in the mixed solution, further improvement mixed solution's quality, therefore, the clothes hanger is strong in practicability.

Description

Polylactic acid is moulded plastics with heating melting device

Technical Field

The utility model belongs to the technical field of polylactic acid processing, concretely relates to polylactic acid is moulded plastics and is used heating melting device.

Background

A single lactic acid molecule has a hydroxyl group and a carboxyl group, a plurality of lactic acid molecules are combined together, OH and-COOH of other molecules are subjected to dehydration condensation, COOH and-OH of other molecules are subjected to dehydration condensation, so that the lactic acid molecules and the-OH of other molecules are manually pulled to form polymers, namely polylactic acid, polylactic acid is also called polylactide, belongs to the family of polyesters, the polylactic acid is a polymer obtained by polymerizing lactic acid serving as a main raw material, the raw material source is sufficient and can be regenerated, the production process of the polylactic acid is pollution-free, the product can be biodegraded, the natural circulation is realized, the polylactic acid is an ideal green high polymer material, and when the polylactic acid is subjected to injection molding, the polylactic acid and other raw materials are usually melted together and then subjected to injection molding.

Polylactic acid and other raw materials melt after mixing, and the mixed solution can produce the sediment in the storage cavity that leaks hopper-shaped, leads to the raw materials composition in the mixed solution to distribute inhomogeneous, has reduced the product quality after moulding plastics.

Accordingly, those skilled in the art have provided a heating and melting apparatus for polylactic acid injection molding to solve the problems set forth in the background art described above.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a polylactic acid moulds plastics with heating melting device has the even characteristics of raw materials distribution.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a polylactic acid is moulded plastics and is used heating melting device, includes melting jar and the conveying cylinder that is linked together with it, the inside of melting jar has the heating mechanism that is used for the polylactic acid heating, the inside of melting jar has the heating chamber that is used for placing the polylactic acid, the bottom fixedly connected with cover of melting jar, the first motor of top fixedly connected with of cover, the first pivot of output fixedly connected with of first motor, first pivot runs through the cover and extends to the inside of heating chamber, just the first leaf and the second of stirring of a plurality of fixedly connected with that the outer wall of first pivot is even stirs the leaf, the second stirs the leaf and is located the below of first leaf, the bottom fixedly connected with connecting pipe of melting jar, the other end of connecting pipe is fixed the outer wall of conveying cylinder, the inside of conveying cylinder has the transport chamber, the connecting pipe runs through conveying cylinder and with the transport chamber is linked together, the top fixedly connected with second motor of a conveying cylinder, the output end fixedly connected with second pivot of second motor, the second pivot runs through a conveying cylinder and extends to carry the bottom in chamber, just the outer wall fixedly connected with auger of second pivot, first motor, second motor all with external power source electric connection.

Preferably, the bottom of the melting tank is provided with a cone part, and the second stirring blade is positioned inside the cone part.

Preferably, a valve is fixedly connected to the inside of the connecting pipe.

Preferably, the outer wall of the connecting pipe is fixedly connected with a protective pipe, a fixing groove matched with the connecting pipe is formed in the protective pipe, and the protective pipe is fixed on the outer wall of the connecting pipe through the fixing groove.

Preferably, the protection tube has an isolation chamber therein, and the isolation chamber is located outside the fixing groove.

Preferably, the bottom of the conveying cylinder is provided with a discharge hole, and the conveying cylinder is communicated with a feed inlet of the injection mold through the discharge hole.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in the outer wall fixedly connected with auger of second pivot, when melting the polylactic acid in the heating chamber, first motor work drives the first pivot of fixing at its output and rotates, and drive first stirring leaf and the second stirring leaf of fixing on it and rotate, let polylactic acid solution mix together with other raw materials, the melting speed of polylactic acid has been accelerated, simultaneously, also avoided leading to the condition that solution composition distributes unevenly because of mixed solution produces the deposit in the cone portion to take place, the product quality after the injection moulding has been improved, the work efficiency has been improved, when carrying mixed solution, second motor work drives the second pivot of fixing at its output and rotates, and drive the auger and rotate, carry mixed solution that gets into through the connecting pipe and carry the chamber by the auger, can make mixed solution keep the motion state all the time when carrying out the transportation to mixed solution, the components in the mixed solution are distributed more uniformly, the quality of the mixed solution is further improved, and the practicability is high.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of a first stirring blade and a second stirring blade in the present invention;

FIG. 3 is a schematic structural view of the connecting pipe, the melting tank and the conveying cylinder of the present invention;

fig. 4 is a schematic structural view of the middle protection tube of the present invention.

In the figure: 1. a melting tank; 101. a heating cavity; 11. a can lid; 12. a first motor; 121. a first rotating shaft; 13. a cone part; 14. a first stirring blade; 15. second stirring leaves; 16. a connecting pipe; 17. a valve; 18. a protective tube; 181. fixing grooves; 182. an isolation chamber; 2. a delivery cartridge; 201. a delivery lumen; 202. a discharge port; 21. a second motor; 22. a second rotating shaft; 23. and (4) a packing auger.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a polylactic acid is moulded plastics and is used heating melting device, including melting jar 1 and rather than the conveyer drum 2 that is linked together, the inside of melting jar 1 has the heating mechanism who is used for polylactic acid heating, the inside of melting jar 1 has the heating chamber 101 that is used for placing polylactic acid, the bottom fixedly connected with cover 11 of melting jar 1, the top fixedly connected with first motor 12 of cover 11, the output fixedly connected with first pivot 121 of first motor 12, first pivot 121 runs through cover 11 and extends to the inside of heating chamber 101, and the even fixedly connected with of the outer wall of first pivot 121 has a plurality of first stirring leaves 14 and second stirring leaf 15, second stirring leaf 15 is located the below of first stirring leaf 14, the bottom fixedly connected with connecting pipe 16 of melting jar 1, the other end of connecting pipe 16 is fixed at the outer wall of conveyer drum 2, the inside of conveyer drum 2 has

conveyer chamber

201, 16 runs through conveyer drum 2 and is linked together with the conveyer chamber 201, the top fixedly connected with second motor 21 of a transport section of thick bamboo 2, the output fixedly connected with second pivot 22 of second motor 21, second pivot 22 run through a transport section of thick bamboo 2 and extend to the bottom of carrying chamber 201, and the outer wall fixedly connected with auger 23 of second pivot 22, first motor 12, second motor 21 all with external power source electric connection.

In this embodiment: the top of the tank cover 11 is fixedly connected with a first motor 12, the output end of the first motor 12 is fixedly connected with a first rotating shaft 121, the first rotating shaft 121 penetrates through the tank cover 11 and extends into the heating chamber 101, the outer wall of the first rotating shaft 121 is uniformly and fixedly connected with a plurality of first stirring blades 14 and second stirring blades 15, the second stirring blades 15 are positioned below the first stirring blades 14, when the polylactic acid in the heating chamber 101 is melted, the first motor 12 works to drive the first rotating shaft 121 fixed at the output end to rotate and drive the first stirring blades 14 and the second stirring blades 15 fixed thereon to rotate, so that the polylactic acid solution and other raw materials are mixed together, the melting speed of the polylactic acid is accelerated, meanwhile, the condition that components in the mixed solution are not uniformly distributed is avoided, the product quality after injection molding is improved, the working efficiency is improved, the bottom of the melting tank 1 is fixedly connected with a connecting pipe 16, the other end of the connecting pipe 16 is fixed on the outer wall of the conveying cylinder 2, a conveying cavity 201 is arranged inside the conveying cylinder 2, the connecting pipe 16 penetrates through the conveying cylinder 2 and is communicated with the conveying cavity 201, after the polylactic acid is melted, a worker opens the valve 17 to enable the mixed solution to enter the conveying cavity 201 through the connecting pipe 16, the top of the conveying cylinder 2 is fixedly connected with a second motor 21, the output end of the second motor 21 is fixedly connected with a second rotating shaft 22, the second rotating shaft 22 penetrates through the conveying cylinder 2 and extends to the bottom of the conveying cavity 201, the outer wall of the second rotating shaft 22 is fixedly connected with an auger 23, the second motor 21 works to drive the second rotating shaft 22 fixed at the output end to rotate and drive the auger 23 to rotate, the mixed solution entering the conveying cavity 201 is conveyed by the auger 23, and the mixed solution can be kept in a moving state all the time when the mixed solution is conveyed, let the more even of the composition distribution in the mixed solution, further improvement the quality of mixed solution, the practicality is strong, and rethread discharge gate 202 is moulded plastics in carrying the mixed solution entering injection mold.

In fig. 1, 2 and 3: when the polylactic acid in the heating cavity 101 is melted, the first motor 12 operates to drive the first rotating shaft 121 fixed at the output end to rotate and drive the first stirring blade 14 and the second stirring blade 15 fixed thereon to rotate, so that the polylactic acid solution is mixed with other raw materials, the melting speed of the polylactic acid is accelerated, meanwhile, the condition that the components of the mixed solution are not uniformly distributed due to the precipitation of the mixed solution in the cone-shaped cylinder part 13 is avoided, the product quality after injection molding is improved, the working efficiency is improved, after the polylactic acid is melted, a worker opens the valve 17 to allow the mixed solution to enter the conveying cavity 201 through the connecting pipe 16, the second motor 21 operates to drive the second rotating shaft 22 fixed at the output end to rotate and drive the auger 23 to rotate, the auger 23 conveys the mixed solution entering the conveying cavity 201, and the mixed solution can be kept in a moving state all the time while being conveyed, the components in the mixed solution are distributed more uniformly, the quality of the mixed solution is further improved, and the practicability is high.

In fig. 4: when the protection device is used, a worker fixes the protection tube 18 outside the connecting tube 16 through the fixing groove 181, the connecting tube 16 is protected by the isolation cavity 182, the situation that the temperature of a solution inside the connecting tube 16 is reduced due to the influence of the external temperature on the connecting tube 16 is avoided, meanwhile, the temperature of the connecting tube 16 can be isolated, and the situation that the worker touches the connecting tube 16 to cause scalding is avoided.

The utility model discloses a theory of operation and use flow: when the polylactic acid in the heating cavity 101 is melted, the first motor 12 (model is YL-7112) works to drive the first rotating shaft 121 fixed at the output end to rotate, and drive the first stirring blade 14 and the second stirring blade 15 fixed thereon to rotate, so that the polylactic acid solution is mixed with other raw materials, the melting speed of the polylactic acid is accelerated, meanwhile, the condition that the components of the mixed solution are not uniformly distributed due to the precipitation in the conical barrel part 13 is avoided, the product quality after injection molding is improved, the working efficiency is improved, after the melting of the polylactic acid is completed, a worker opens the valve 17, so that the mixed solution enters the conveying cavity 201 through the connecting pipe 16, the second motor 21 (model is YL-7112) works to drive the second rotating shaft 22 fixed at the output end to rotate, and drive the auger 23 to rotate, the auger 23 conveys the mixed solution entering the conveying cavity 201, can make mixed solution remain motion state throughout when transporting mixed solution, let the more even of composition distribution in the mixed solution, further improvement mixed solution's quality, the practicality is strong.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a polylactic acid is moulded plastics and is used heating melting device, includes melting tank (1) and rather than communicating transport cylinder (2), the inside of melting tank (1) has the heating mechanism who is used for polylactic acid heating, its characterized in that: the melting tank (1) is internally provided with a heating cavity (101) for placing polylactic acid, the melting tank (1) is fixedly connected with a tank cover (11) at the bottom, the tank cover (11) is fixedly connected with a first motor (12) at the top, an output end of the first motor (12) is fixedly connected with a first rotating shaft (121), the first rotating shaft (121) penetrates through the tank cover (11) and extends to the inside of the heating cavity (101), the outer wall of the first rotating shaft (121) is uniformly and fixedly connected with a plurality of first stirring blades (14) and second stirring blades (15), the second stirring blades (15) are positioned below the first stirring blades (14), the melting tank (1) is fixedly connected with a connecting pipe (16) at the bottom, the other end of the connecting pipe (16) is fixed on the outer wall of the conveying cylinder (2), and the conveying cylinder (2) is internally provided with a conveying cavity (201), connecting pipe (16) run through carry a section of thick bamboo (2) and with carry chamber (201) and be linked together, the top fixedly connected with second motor (21) of carrying a section of thick bamboo (2), the output fixedly connected with second pivot (22) of second motor (21), second pivot (22) run through carry a section of thick bamboo (2) and extend to carry the bottom of chamber (201), just outer wall fixedly connected with auger (23) of second pivot (22), first motor (12), second motor (21) all with external power source electric connection.

2. The heating and melting device for polylactic acid injection molding according to claim 1, wherein: the bottom of the melting tank (1) is provided with a cone part (13), and the second stirring blades (15) are positioned inside the cone part (13).

3. The heating and melting device for polylactic acid injection molding according to claim 1, wherein: and a valve (17) is fixedly connected inside the connecting pipe (16).

4. The heating and melting device for polylactic acid injection molding according to claim 1, wherein: the outer wall of the connecting pipe (16) is fixedly connected with a protective pipe (18), a fixing groove (181) matched with the connecting pipe (16) is formed in the protective pipe (18), and the protective pipe (18) is fixed on the outer wall of the connecting pipe (16) through the fixing groove (181).

5. The heating and melting device for polylactic acid injection molding according to claim 4, wherein: the interior of the protective tube (18) is provided with an isolation cavity (182), and the isolation cavity (182) is positioned outside the fixing groove (181).

6. The heating and melting device for polylactic acid injection molding according to claim 1, wherein: the bottom of the conveying cylinder (2) is provided with a discharge hole (202), and the conveying cylinder (2) is communicated with a feed hole of the injection mold through the discharge hole (202).