CN202556669U - Device for producing lead screws and lead screws - Google Patents
Device for producing lead screws and lead screws Download PDFInfo
- Publication number
- CN202556669U CN202556669U CN2012201487406U CN201220148740U CN202556669U CN 202556669 U CN202556669 U CN 202556669U CN 2012201487406 U CN2012201487406 U CN 2012201487406U CN 201220148740 U CN201220148740 U CN 201220148740U CN 202556669 U CN202556669 U CN 202556669U
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- CN
- China
- Prior art keywords
- screw mandrel
- equipment
- injection mold
- mould
- injection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a device for producing lead screws by utilizing the gas-assisted molding technology and the lead screws produced by the device. The device comprises an injection molding mould, a mould closing device, a plasticizing device and an injection device, wherein the mould closing device is used for closing a front mould and a rear mould of the injection molding mould; the plasticizing device is used for melting plastic masterbatches; and the injection mould is used for injecting the melt plastic into a cavity of the injection molding mould through a main runner of the injection molding mould. The device is characterized by further comprising a gas-assisted molding device which comprises a gas pump and a gas channel, wherein the gas channel is communicated to the cavity of the injection molding mould, and the gas pump is used for filling high-pressure gas into the cavity of the injection molding mould through the gas channel. The lead screws produced by the device have thin clearance, the dimension change of the lead screws is reduced, and the deformation of the lead screws is also reduced.
Description
Technical field
The utility model relates to a kind of equipment of producing screw mandrel, and particularly a kind of gas assisted molding technology that adopts is produced the equipment of screw mandrel and the screw mandrel that adopts this device fabrication to go out.
Background technology
Screw mandrel 10 is that gyration is converted into rectilinear motion, or rectilinear motion is converted into a kind of drive mechanism of gyration, and is as shown in Figure 1.The screw mandrel of plastic material is accomplished through Shooting Technique, and the screw mandrel of plastic material requires difficult deformation, the especially length of producing of size in forming process.And the equipment of producing screw mandrel at present is injection machine.This injection machine comprises injection mold, mold closing mechanism, plasticizing apparatus and injection device etc., and this kind injection machine is that the sizing material that incorporates is expelled in the die cavity of mould, treats that the product cooling of injection formed can be taken out moulding from mold cavity.
As shown in Figure 2, for existing technology is produced screw mandrel, the plastics of fusion fill up whole die cavity 12 behind the die cavity 22 that advances cast gate 21 entering moulds of injection moulding grinding tool 20; So this screw mandrel inside is solid, but because plastics have the characteristic of expanding with heat and contract with cold; So plastic injection piece can size occur in forming process unstable, yielding problem, and the screw mandrel of plastic material is no exception; Its length in forming process very easily is out of shape, and causes finished size not meet standard, and yields is lower.
The utility model content
The purpose of the utility model is exactly in order to solve the problem that prior art exists, to have proposed a kind of gas assisted molding technology that adopts and produced the equipment of screw mandrel and the screw mandrel that adopts this device fabrication to go out.Adopt the screw mandrel change in size of this device fabrication very little, yields improves greatly.
The concrete technical scheme of the utility model is following:
The utility model provides a kind of equipment of producing screw mandrel; This equipment comprises injection mold, mold closing mechanism, plasticizing apparatus and injection device, and said mold closing mechanism is used for the front mould of injection mold is closed with the back mould, and said plasticizing apparatus is used for plastic master batch is melted; Said injection device is used for the plastics of fusion are injected injection mold cavity through the sprue of injection mold; It is characterized in that this equipment also comprises gas assisted molding equipment, said gas assisted molding device comprises air pump and air flue; Said air flue is communicated to injection mold cavity, and said air pump is used for gases at high pressure are charged into injection mold cavity through air flue.
Said air flue charges into injection mold cavity through the sprue of injection mold.
The periphery of said air flue is the sprue of annular, and the sprue of said annular connects into cast gate.
Air flue is positioned at the solid plate of injection mold.
The other end of said molding mold cavity is provided with the cold burden groove, and this cold burden groove is used to hold the sizing material of the fusion that gases at high pressure blow out in the die cavity.
Said cold burden groove is positioned at moving platen.
The utility model also provides a kind of screw mandrel, it is characterized in that, this screw mandrel obtains through above-mentioned device fabrication.
The center of the screw mandrel that production obtains has hollow cavity.
The utility model beneficial technical effects is:
Compared to prior art, the utility model adopts gas that sky is blown in the centre of product owing to adopted gas assisted molding equipment to be used for the production of screw mandrel, the glue position attenuation of product, and change in size reduces, and distortion also diminishes.Because being blown into of gas can be accelerated the cooling velocity of product, improved production efficiency simultaneously.
The other end at die cavity is provided with the cold burden groove, can make to make things convenient for being blown into of gas, and avoiding occurring product has pore near the position of advancing cast gate, and does not have the problem of pore away from an end that advances cast gate.
Description of drawings
Fig. 1 is the stereogram of screw mandrel;
Fig. 2 is an equipment of producing screw mandrel in the prior art;
Fig. 3 is the equipment of the production screw mandrel of the utility model.
The specific embodiment
For the purpose, technical scheme and the advantage that make utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explain the utility model, be not used for limiting the utility model.
Embodiment
A kind of equipment of producing screw mandrel; This equipment comprises injection mold 20, mold closing mechanism (not drawing among the figure), plasticizing apparatus (not drawing among the figure) and injection device (not drawing among the figure); Said mold closing mechanism is used for the front mould of injection mold 20 is closed with the back mould; Said plasticizing apparatus is used for the plastic master batch fusing, and said injection device is used for the plastics of fusion are injected injection mold cavity 22 through the sprue 23 of injection mold 20, it is characterized in that; This equipment also comprises gas assisted molding equipment 30; Said gas assisted molding device comprises air pump 31 and air flue 32, and said air flue 32 is communicated to injection mold cavity 22, and said air pump 31 is used for gases at high pressure are charged into injection mold cavity 22 through air flue 32.Said air flue 32 charges into injection mold cavity 22 through the sprue 23 of injection mold.The periphery of said air flue is the sprue 23 of annular, and the sprue 23 of said annular connects to advance cast gate 21.Air flue is arranged in the solid plate (figure does not draw) of injection mold.The other end of said molding mold cavity 22 is provided with cold burden groove 221, and this cold burden groove 221 is used to hold the sizing material of the fusion that gases at high pressure blow out in the die cavity.Said cold burden groove 221 is arranged in moving platen (figure does not draw).
The center of the screw mandrel 10 that obtains through above-mentioned device fabrication has hollow cavity.
In a word; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technical scheme of the utility model; And not breaking away from the spirit and the scope of the utility model technical scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (7)
1. equipment of producing screw mandrel, this equipment comprises injection mold, mold closing mechanism, plasticizing apparatus and injection device, said mold closing mechanism is used for the front mould of injection mold is closed with the back mould; Said plasticizing apparatus is used for plastic master batch is melted; Said injection device is used for after the front mould of injection mold closes with the back mould, the plastics of fusion being injected injection mold cavity through the sprue of injection mold, it is characterized in that; This equipment also comprises gas assisted molding equipment; Said gas assisted molding device comprises air pump and air flue, and said air flue is communicated to an end of injection mold cavity, and said air pump is used for gases at high pressure are charged into injection mold cavity through air flue.
2. the equipment of production screw mandrel according to claim 1 is characterized in that, said air flue charges into injection mold cavity through the sprue of injection mold.
3. the equipment of production screw mandrel according to claim 2 is characterized in that, the periphery of said air flue is the sprue of annular, and the sprue of said annular connects into cast gate.
4. the equipment of production screw mandrel according to claim 3 is characterized in that, air flue is positioned at the solid plate of injection mold.
5. the equipment of production screw mandrel according to claim 1 is characterized in that, the other end of said molding mold cavity is provided with the cold burden groove, and this cold burden groove is used to hold the sizing material of the fusion that gases at high pressure blow out in the die cavity.
6. the equipment of production screw mandrel according to claim 5 is characterized in that, said cold burden groove is positioned at moving platen.
7. a screw mandrel is characterized in that, this screw mandrel is through arbitrary described device fabrication obtains like claim 1-6, and the center of said screw mandrel has hollow cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201487406U CN202556669U (en) | 2012-03-31 | 2012-03-31 | Device for producing lead screws and lead screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201487406U CN202556669U (en) | 2012-03-31 | 2012-03-31 | Device for producing lead screws and lead screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202556669U true CN202556669U (en) | 2012-11-28 |
Family
ID=47206365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201487406U Expired - Lifetime CN202556669U (en) | 2012-03-31 | 2012-03-31 | Device for producing lead screws and lead screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202556669U (en) |
-
2012
- 2012-03-31 CN CN2012201487406U patent/CN202556669U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151223 Address after: 518103 Guangdong city of Shenzhen province Baoan District Fuyong street baishixia Longwangmiao industrial zone 18 Patentee after: Shenzhen Zhaowei Machinery & Electronics Co., Ltd. Address before: 518103 18 Dragon King Temple Industrial Park, Fuyong Town, Shenzhen, Guangdong, Baoan District Patentee before: Li Haizhou |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518103 Guangdong Shenzhen Baoan District Fuyong Street white stone dragon dragon temple industrial zone 18 Patentee after: Shenzhen mechatronics, mechatronics and Limited by Share Ltd Address before: 518103 Guangdong Shenzhen Baoan District Fuyong Street white stone dragon dragon temple industrial zone 18 Patentee before: Shenzhen Zhaowei Machinery & Electronics Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |