CN203876175U - Screw rod used in injection molding machine - Google Patents
Screw rod used in injection molding machine Download PDFInfo
- Publication number
- CN203876175U CN203876175U CN201420317703.2U CN201420317703U CN203876175U CN 203876175 U CN203876175 U CN 203876175U CN 201420317703 U CN201420317703 U CN 201420317703U CN 203876175 U CN203876175 U CN 203876175U
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- CN
- China
- Prior art keywords
- blade
- helical
- center
- screw
- pole
- Prior art date
- 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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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a screw rod used in an injection molding machine. According to the key point of the technical scheme, the screw rod comprises a center rod and screw blades surrounding the center rod, wherein the center rod and the screw blades are welded and connected, the screw blades comprise a first screw blade and a second screw blade, the first screw blade and the second screw blade are conically connected to the outer surface of the center rod, and a gap formed among the first screw blade, the second screw blade and the center rod forms a cooling liquid channel. Conventional solid screw blades are changed into a hollow shape, and a cooling liquid is circulated in a hollow part, so that the screw rod ensures constant temperature of the screw blades, and ensures that plastic in a molten state is stably and reliably conveyed without causing the condition of adhering the plastic in the molten state and the screw blades.
Description
Technical field
The utility model relates to a kind of spiral conveyor rod, and more particularly, it relates to a kind of screw rod for injection machine.
Background technology
Injection machine has another name called injection (mo(u)lding) machine or injector, it is to utilize mould for plastics to make the main former of the plastic products of various shapes thermoplastic or thermosetting plastics, can heating of plastic, molten plastic is applied to high pressure, make its ejaculation and be full of mold cavity.
Screw rods at the parts that molten plastic are delivered to mold cavity, in a circulation of injection molding material machine, can be by after the plastic heating plasticizing of some in official hour, under certain pressure and speed, by screw rod, molten plastic is injected to mold cavity, after injection finishes, the melt being expelled in die cavity is kept to sizing.
Traditional screw rod comprises center-pole and helical-blade, and center-pole and helical-blade have two kinds of connected modes, the one processing that is formed in one, and one is to be welded to connect.No matter be any screw rod, all need to ensure the especially constant temperature of helical-blade part of screw rod, and helical-blade directly contacts with the plastics under molten condition for a long time, cannot dispel the heat the very first time, temperature can raise gradually, and that part that the plastics under molten condition directly contact with helical-blade very likely there will be calcination to stick to the situation on helical-blade.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of screw rod for injection machine, can make helical-blade remain on for a long time temperature constant state, guarantee that the plastics under molten condition are reliablely and stablely transferred, the situation that can not exist plastics under molten condition and helical-blade to adhere to.
For achieving the above object, the utility model provides following technical scheme: a kind of screw rod for injection machine, comprise center-pole and the winding helical-blade on center-pole, center-pole and helical-blade are welded to connect, and it is characterized in that: described helical-blade comprises the first helical-blade and the second helical-blade; The first helical-blade and the tapered shape of the second helical-blade are connected in the outer surface of center-pole, and the gap forming between the first helical-blade, the second helical-blade and center-pole forms cooling passage.
By adopting technique scheme, the helical-blade of traditional entity is changed to hollow shape, in hollow part circulation cooling fluid, ensure the constant temperature of helical-blade, guarantee that the plastics under molten condition are reliablely and stablely transferred, the situation that can not exist plastics under molten condition and helical-blade to adhere to.
The utility model is further set to: described center-pole is hollow structure, and this hollow structure is connected with cooling passage conducting.
By adopting technique scheme, not only helical-blade is carried out effectively coolingly, also can carry out center-pole coolingly simultaneously, make plastics under molten condition and screw rod that the situation of adhesion can not occur yet.
The utility model is further set to: the outer surface of described center-pole is provided with helical groove, and helical-blade is welded to connect in helical groove place and center-pole, and center-pole is provided with the linked hole that conducting connects hollow structure and cooling passage in helical groove place.
By adopting technique scheme, make the firm and reliable connection of helical-blade and center-pole.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model for the screw rod embodiment of injection machine;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view.
Detailed description of the invention
Referring to figs. 1 through Fig. 2, the utility model is described further for the screw rod embodiment of injection machine.
For a screw rod for injection machine, comprise center-pole 1 and the winding helical-blade 2 on center-pole 1, center-pole 1 and helical-blade 2 are welded to connect;
Described center-pole 1 is hollow structure 11, and its outer surface is provided with helical groove 3, and helical groove 3 places are provided with linked hole 6;
Described helical-blade 2 comprises the first helical-blade 21 and the second helical-blade 22; The first helical-blade 21 and the tapered shape of the second helical-blade 22 are welded to connect helical groove 3 places in center-pole 1,
The gap forming between the first helical-blade 21, the second helical-blade 22 and center-pole 1 forms cooling passage 4, and the hollow structure 11 of center-pole 1 is realized conducting with cooling passage 4 by linked hole 6 and is connected.
Wherein, on center-pole 1, helical groove 3 can be set, directly helical-blade 2 is welded on the surface of center-pole 1, for helical-blade 2 is connected more solid and reliable with center-pole 1, the present embodiment is preferred, helical groove 3 is set on center-pole 1, and helical-blade 2 is welded to connect with center-pole 1 in helical groove 3;
Linked hole 6 can be set to coherent threaded hole, also can be distributed in the independent through-hole in helical groove 3 for several;
The helical-blade of traditional entity 2 is changed to hollow shape by the utility model, in hollow part circulation cooling fluid, ensure the constant temperature of helical-blade 2, guarantee that the plastics under molten condition are reliablely and stablely transferred, the situation that can not exist plastics under molten condition and helical-blade 2 to adhere to; The hollow structure 11 of center-pole 1 and the setting of linked hole 6, not only carry out effectively coolingly to helical-blade 2, also can carry out center-pole 1 coolingly simultaneously, makes plastics under molten condition and screw rod that the situation of adhesion can not occur yet.
Claims (3)
1. for a screw rod for injection machine, comprise center-pole and the winding helical-blade on center-pole, center-pole and helical-blade are welded to connect, and it is characterized in that: described helical-blade comprises the first helical-blade and the second helical-blade; The first helical-blade and the tapered shape of the second helical-blade are connected in the outer surface of center-pole, and the gap forming between the first helical-blade, the second helical-blade and center-pole forms cooling passage.
2. the screw rod for injection machine according to claim 1, is characterized in that: described center-pole is hollow structure, this hollow structure is connected with cooling passage conducting.
3. the screw rod for injection machine according to claim 2, it is characterized in that: the outer surface of described center-pole is provided with helical groove, helical-blade is welded to connect in helical groove place and center-pole, and center-pole is provided with the linked hole that conducting connects hollow structure and cooling passage in helical groove place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317703.2U CN203876175U (en) | 2014-06-13 | 2014-06-13 | Screw rod used in injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317703.2U CN203876175U (en) | 2014-06-13 | 2014-06-13 | Screw rod used in injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203876175U true CN203876175U (en) | 2014-10-15 |
Family
ID=51676716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317703.2U Expired - Lifetime CN203876175U (en) | 2014-06-13 | 2014-06-13 | Screw rod used in injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203876175U (en) |
-
2014
- 2014-06-13 CN CN201420317703.2U patent/CN203876175U/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: 20161018 Address after: 201616, No. 888, Kun Gang Road, Xiao Kunshan Town, Shanghai, Songjiang District Patentee after: SHANGHAI GUANGSU MACHINERY MANUFACTURE Co.,Ltd. Address before: 325000 Zhejiang Province, Wenzhou City Heng Du first industrial zone Patentee before: WENZHOU GUANGMING PLASTIC MACHINERY MANUFACTURINGCO., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |