CN203331377U - Injection molding device of polylactic acid products - Google Patents
Injection molding device of polylactic acid products Download PDFInfo
- Publication number
- CN203331377U CN203331377U CN2013202574340U CN201320257434U CN203331377U CN 203331377 U CN203331377 U CN 203331377U CN 2013202574340 U CN2013202574340 U CN 2013202574340U CN 201320257434 U CN201320257434 U CN 201320257434U CN 203331377 U CN203331377 U CN 203331377U
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- polylactic acid
- temperature regulating
- temperature
- regulating device
- fixed die
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Abstract
The utility model discloses an injection molding device of polylactic acid products. The injection molding device of polylactic acid products comprises a feeding unit, an injection mechanism as well as a molding mechanism, wherein polylactic acid raw materials are arranged in the feeding unit; the injection mechanism is connected with the feeding unit through a pipe body; the pipe body is provided with a plurality of first temperature control devices so as to be controlled at the thermoplastic temperature; the molding mechanism comprises a fixed mold and a movable mold matched with the fixed mold; the fixed mold is connected with the pipe body; the fixed mold and the movable mold are both provided with second temperature control devices respectively, and are controlled to be at the molding temperature. The polylactic acid raw materials are at the appropriate temperature when being molded into finished products by means of the first temperature control devices and the second temperature control devices, so that the molding process is smooth, and the yield of polylactic acid products is improved.
Description
Technical field
The utility model relates to a kind of device for injection moulding, refers in particular to the device for injection moulding for the moulding polylactic acid article.
Background technology
In life now, people are dependent on petrochemical material to make the daily living article of high molecular polymer, such as: polyethylene, polypropylene, polystyrene, polyvinyl chloride etc.But the new line gradually along with environmental consciousness, people find that common high molecular polymer used is difficult to recycling after use gradually, and due to its Stability Analysis of Structures, be difficult for being decomposed in natural environment, therefore, the research for decomposable macromolecule polymer material also more and more comes into one's own.
Wherein, PLA (Poly Lactic Acid, PLA) is current relatively deep decomposable macromolecular material in research, its be with starch or carbohydrate etc. as raw material, and prepared and made environment had to kind material.Except environmental protection, its also have good engineering properties, easy to process, easily obtain material source, impressionability, gas permeability, smell barrier performance ... etc. many advantages.Therefore, the range of application of PLA is quite extensive.
Yet the glass transition temperature of PLA (glass transition) is about 50 ℃ to 60 ℃; And the poly-lactic acid material place different from general plastic material be, poly-lactic acid material can not be lowered the temperature after ejection formation at once, must maintain hot environment to meet the percent crystallization in massecuite of goods, and then after its cooling down moulding, then row takes out product; If poly-lactic acid material does not continue for some time in high temperature after ejaculation, percent crystallization in massecuite deficiency, the temperature of its thermal deformation is affected, and therefore uses the effect of traditional Jet forming machine not satisfactory.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of device for injection moulding of polylactic acid article, and its main purpose is by controlling the temperature of polylactic acid raw material in the process of ejection formation, to improve the yield of polylactic acid article.
For addressing the above problem, the utility model provides a kind of device for injection moulding of polylactic acid article, comprises: a feed unit, there is the posting port and the outlet that are connected, and this posting port is for inserting polylactic acid raw material; One injection mechanism, comprise a body and be located at the screw rod in this body, described injection mechanism is connected with this outlet with an opening of this body one end, this screw rod pushes polylactic acid raw material and extrudes toward a nozzle of body, this body is provided with a plurality of the first temperature regulating devices, respectively this first temperature regulating device is connected with one first processing unit, and this first temperature regulating device is controlled the temperature in thermoplastic in this body; An and shaping mechanism, comprise a fixed die and the But moving die coordinated with this fixed die, this fixed die is communicated with this nozzle with a running channel, be equipped with one second temperature regulating device on this fixed die and this But moving die, respectively this second temperature regulating device is connected with one second processing unit, and this second temperature regulating device is controlled the temperature in moulding in this fixed die and this But moving die.
Further, described each first temperature regulating device is to be located on this body, and respectively this first temperature regulating device is adjacent and do not contact.
The device for injection moulding of the polylactic acid article that the utility model utilization provides, the effect that can obtain is: by the body of this injection mechanism and this fixed die and But moving die, the first temperature regulating device and the second temperature regulating device being set respectively, make polylactic acid raw material in being shaped to the process of finished product, can be in suitable temperature, process in order to moulding is smooth, improves the yield of polylactic acid article.
The accompanying drawing explanation
Fig. 1 is the use state reference map of the utility model embodiment.
Fig. 2 is the block diagram of the utility model embodiment.
Description of reference numerals
The specific embodiment
Before this novel being described in detail, be noted that in the following description content, similarly assembly is to mean with identical numbering.
The preferred embodiment of the device for injection moulding of the utility model polylactic acid article as shown in Figures 1 and 2, it is with so that the polylactic acid raw material ejection formation is polylactic acid article, this device for injection moulding comprises: a feed unit 20, an injecting unit 30 and a shaping mechanism 40, wherein:
Described feed unit 20, be a funnel-shaped structure, and it has a posting port 21 and the outlet 22 be connected, and this posting port 21 is to use for inserting polylactic acid raw material;
Described injection mechanism 30, comprise a body 31 and be located at the screw rod 32 in this body 31, the maximum outside diameter of this screw rod 32 equates with the internal diameter of this body 31, described injection mechanism 30 is connected with this outlet 22 with an opening 33 of these body 31 1 ends, in this embodiment, this opening 33 is in the upside of this body 31, this screw rod 32 pushes this polylactic acid raw material and extrudes toward a nozzle 34 of body 31, be equipped with a plurality of the first temperature regulating devices 35 on the outer peripheral edges of this body 31, respectively this first temperature regulating device 35 is adjacent and interval existence non-contiguously, respectively this first temperature regulating device 35 is connected with one first processing unit 36, this first temperature regulating device 35 is controlled the temperature in thermoplastic in this body 31, wherein, this first temperature regulating device 35 can have intensification and the volume of cooling function, and
Described shaping mechanism 40, comprise a fixed die 41 and the But moving die 42 coordinated with this fixed die 41, this fixed die 41 is communicated with this nozzle 34 with a running channel 43, be equipped with one second temperature regulating device 44 on this fixed die 41 and this But moving die 42, this second temperature regulating device 44 is outer peripheral edges of being located at this fixed die 41 and this But moving die 42, respectively this second temperature regulating device 44 is connected with one second processing unit 45, this second temperature regulating device 44 is controlled the temperature in moulding in this fixed die 41 and this But moving die 42, wherein, the function that this second temperature regulating device 44 can have intensification and lower the temperature.
The above is the utility model embodiment main member and configuration explanation thereof.Occupation mode and effect as for the utility model embodiment, refer to shown in Fig. 1 and Fig. 2, after the raw material of PLA is inserted by the posting port 21 of this feed unit 20, and be positioned at this body 31, and after heating, make the raw materials melt of PLA, and the direction toward this nozzle 34 pushes via this screw rod 32, and extruded by this nozzle 34; And be shaped to polylactic acid article via this running channel 43 in this fixed die 41 and this But moving die 42.It should be noted that, the utility model is provided with the first temperature regulating device 35 in these body 31 outer peripheral edges, be provided with the second temperature regulating device 44 on the outer peripheral edges of this fixed die 41 and But moving die 42, by this, be held in suitable temperature, process in order to moulding is smooth, improves the yield of polylactic acid article.
Claims (2)
1. the device for injection moulding of a polylactic acid article is characterized in that: comprising:
One feed unit, have the posting port and the outlet that are connected, and this posting port is for inserting polylactic acid raw material;
One injection mechanism, comprise a body and be located at the screw rod in this body, this injection mechanism is connected with this outlet with an opening of this body one end, this screw rod pushes polylactic acid raw material and extrudes toward a nozzle of body, this body is provided with a plurality of the first temperature regulating devices, each described first temperature regulating device is connected with one first processing unit, and described the first temperature regulating device is controlled the temperature in thermoplastic in this body; And
One shaping mechanism, comprise a fixed die and the But moving die coordinated with described fixed die, described fixed die is communicated with this nozzle with a running channel, be equipped with one second temperature regulating device on described fixed die and described But moving die, each described second temperature regulating device is connected with one second processing unit, and described the second temperature regulating device is controlled the temperature in moulding in described fixed die and this But moving die.
2. the device for injection moulding of polylactic acid article as claimed in claim 1 is characterized in that: described each first temperature regulating device is to be located on this body, and respectively this first temperature regulating device is adjacent and do not contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202574340U CN203331377U (en) | 2013-05-13 | 2013-05-13 | Injection molding device of polylactic acid products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202574340U CN203331377U (en) | 2013-05-13 | 2013-05-13 | Injection molding device of polylactic acid products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203331377U true CN203331377U (en) | 2013-12-11 |
Family
ID=49700074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202574340U Expired - Fee Related CN203331377U (en) | 2013-05-13 | 2013-05-13 | Injection molding device of polylactic acid products |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203331377U (en) |
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2013
- 2013-05-13 CN CN2013202574340U patent/CN203331377U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140513 |