CN103507237A - Machine barrel screw for injection molding equipment - Google Patents
Machine barrel screw for injection molding equipment Download PDFInfo
- Publication number
- CN103507237A CN103507237A CN201310451035.2A CN201310451035A CN103507237A CN 103507237 A CN103507237 A CN 103507237A CN 201310451035 A CN201310451035 A CN 201310451035A CN 103507237 A CN103507237 A CN 103507237A
- Authority
- CN
- China
- Prior art keywords
- screw
- machine barrel
- main body
- rod main
- groove
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/58—Details
- B29C45/60—Screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/52—Non-return devices
- B29C2045/528—Mixing means forming part of or in close proximity to the non-return valve
Abstract
The invention relates to a machine barrel screw for injection molding equipment. The machine barrel screw comprises a machine barrel and a screw main body movably arranged in the machine barrel, wherein the tail end of the screw main body extends out of the machine barrel, and a conical screw head is arranged at the front end of the screw main body; a machine barrel front body is arranged at the front end of the machine barrel, and is connected with the machine barrel; a groove which is matched with the screw head is formed in the tail end of the machine barrel front body; the screw head extends into the groove; a gap is formed between the screw head and the groove; a first thread is arranged on the screw main body; a nozzle is arranged at the upper end of the machine barrel front body; discharging channels are formed in the nozzle and the machine barrel front body, and are communicated with the groove. The machine barrel screw is characterized in that the first thread is evenly distributed at the upper half part and the lower half part of the screw main body; a second thread is arranged at the upper half part of the screw main body, and is shorter than the first thread. The machine barrel screw enables produced plastic products to have good smoothness and to difficultly generate bubbles.
Description
Technical field
The present invention relates to plastics machinery technical field, refer to especially a kind of screw barrel for injection-moulding device.
Background technology
Plastic products miscellaneous have improved the people's living standard greatly, the critical component of injection-moulding device is screw barrel, screw rod in use will be all single-screw shape structure substantially at present, in particular for the screw rod of processing PET raw material, owing to being that single-screw shape structure causes PET frosting fineness poor and easily produce the shortcoming of bubble.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of screw barrel for injection-moulding device to make PET plastic light cleanliness good, be difficult for producing bubble.
For addressing the above problem, the technical solution used in the present invention is: a kind of screw barrel for injection-moulding device, comprise machine barrel and be movably arranged on the screw rod main body in machine barrel, the end of screw rod main body stretches out machine barrel, the front end of screw rod main body is provided with tapered screw head, machine barrel front end is provided with machine barrel precursor, machine barrel precursor is connected with machine barrel, the end of machine barrel precursor is provided with the groove matching with screw head, screw head stretches in groove, in the middle of screw head and groove, be provided with gap, in screw rod main body, be provided with the first screw thread, the upper end of machine barrel precursor is provided with nozzle, nozzle and machine barrel precursor inside are provided with tapping channel, tapping channel is connected with groove, it is characterized in that: described the first screw thread is evenly distributed on the first half and the Lower Half of screw rod main body, the screw rod main body first half is also provided with the second screw thread, it is shorter in length than the first screw thread.
The pitch of the second described screw thread is greater than the first screw thread.
The upper end of described screw rod main body is provided with some pins.
The part being connected with screw head in described screw rod main body is disposed with check ring and locating ring.
The invention has the beneficial effects as follows: above-mentioned a kind of screw barrel for injection-moulding device is owing to being provided with the second screw thread and some pins in screw rod main body, make stirring, molten plastic more thoroughly evenly, thereby make the plastic product fineness made good, be difficult for producing bubble, again owing to being provided with check ring, can prevent from filling when material liquid countercurrent, the position that the locating ring of setting can standing screw main body.
Accompanying drawing explanation
Fig. 1 is the structural representation of screw barrel of the present invention.
Fig. 2 is the partial structurtes schematic diagram of screw barrel of the present invention.
In figure: 1, machine barrel, 2, screw rod main body, 3, screw head, 4, machine barrel precursor, 5, groove, the 6, first screw thread, 7, nozzle, 8, tapping channel, the 9, second screw thread, 10, pin, 11, check ring, 12, locating ring.
The specific embodiment
Below by specific embodiment, a kind of screw barrel for injection-moulding device of the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of screw barrel for injection-moulding device, comprise machine barrel 1 and be movably arranged on the screw rod main body 2 in machine barrel 1, the end of screw rod main body 2 stretches out machine barrel 1, the front end of screw rod main body 2 is provided with tapered screw head 3, machine barrel 1 front end is provided with machine barrel precursor 4, machine barrel precursor 4 is connected with machine barrel 1, the end of machine barrel precursor 4 is provided with the groove 5 matching with screw head 3, screw head 3 stretches in groove 5, screw head 3 and the middle gap that is provided with of groove 5, in screw rod main body 2, be provided with the first screw thread 6, the upper end of machine barrel precursor 4 is provided with nozzle 7, nozzle 7 and machine barrel precursor 4 inside are provided with tapping channel 8, tapping channel 8 is connected with groove 5, it is characterized in that: described the first screw thread 6 is evenly distributed on the first half of screw rod main body 2 and latter half of, on screw rod main body 2 first halfs, be also provided with the second screw thread 9, it is shorter in length than the first screw thread 6.The pitch of the second described screw thread 9 is greater than the first screw thread 6.The leading section of described screw rod main body 2 is provided with some pins 10.The part being connected with screw head 3 in described screw rod main body 2 is disposed with check ring 11 and locating ring 12, and check ring 11 is for preventing solution adverse current, and locating ring 12 is for the position of standing screw main body 2.
Above-mentioned a kind of screw barrel for injection-moulding device in use, plastic grain enters machine barrel 1 from the first screw thread 6 ends, stirring melting through the first screw thread 6, arrive that the first screw thread 6 and the overlapping part of the second screw thread 9 further stir, melting, plastics after melting enter tapping channel 8 along the gap of screw head 3 and groove 5, finally from nozzle 7 ejections.Owing to being provided with the second screw thread 9 and some pins 10 in screw rod main body 2, make to stir, molten plastic more thoroughly evenly, thereby make the plastic product fineness made good, be difficult for producing bubble.
The above embodiments are principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not for limiting the present invention; It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (4)
1. the screw barrel for injection-moulding device, comprise machine barrel and be movably arranged on the screw rod main body in machine barrel, the end of screw rod main body stretches out machine barrel, the front end of screw rod main body is provided with tapered screw head, machine barrel front end is provided with machine barrel precursor, machine barrel precursor is connected with machine barrel, the end of machine barrel precursor is provided with the groove matching with screw head, screw head stretches in groove, in the middle of screw head and groove, be provided with gap, in screw rod main body, be provided with the first screw thread, the upper end of machine barrel precursor is provided with nozzle, nozzle and machine barrel precursor inside are provided with tapping channel, tapping channel is connected with groove, it is characterized in that: described the first screw thread is evenly distributed on the first half and the Lower Half of screw rod main body, the screw rod main body first half is also provided with the second screw thread, it is shorter in length than the first screw thread.
2. a kind of screw barrel for injection-moulding device according to claim 1, is characterized in that: the pitch of the second described screw thread is greater than the first screw thread.
3. a kind of screw barrel for injection-moulding device according to claim 1, is characterized in that: the upper end of described screw rod main body is provided with some pins.
4. a kind of screw barrel for injection-moulding device according to claim 1, is characterized in that: the part being connected with screw head in described screw rod main body is disposed with check ring and locating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451035.2A CN103507237A (en) | 2013-09-27 | 2013-09-27 | Machine barrel screw for injection molding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310451035.2A CN103507237A (en) | 2013-09-27 | 2013-09-27 | Machine barrel screw for injection molding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103507237A true CN103507237A (en) | 2014-01-15 |
Family
ID=49890915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310451035.2A Pending CN103507237A (en) | 2013-09-27 | 2013-09-27 | Machine barrel screw for injection molding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103507237A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283122A (en) * | 1985-10-09 | 1987-04-16 | Dainippon Printing Co Ltd | Injection molding machine |
| CN201752916U (en) * | 2010-07-06 | 2011-03-02 | 北京化工大学 | Planetary screw mixing integral injection molding machine |
| CN202656456U (en) * | 2012-07-02 | 2013-01-09 | 张家港华丰重型设备制造有限公司 | Double-spiral groove Maillefer screw |
| CN202685238U (en) * | 2012-08-08 | 2013-01-23 | 浙江嘉丞机械有限公司 | Novel threaded rod |
| CN202781735U (en) * | 2012-08-08 | 2013-03-13 | 浙江嘉丞机械有限公司 | Screw for processing PET (polyethylene terephthalate) material |
| CN203496242U (en) * | 2013-09-27 | 2014-03-26 | 江苏维达机械有限公司 | Machine barrel screw used for injection molding machine |
-
2013
- 2013-09-27 CN CN201310451035.2A patent/CN103507237A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6283122A (en) * | 1985-10-09 | 1987-04-16 | Dainippon Printing Co Ltd | Injection molding machine |
| CN201752916U (en) * | 2010-07-06 | 2011-03-02 | 北京化工大学 | Planetary screw mixing integral injection molding machine |
| CN202656456U (en) * | 2012-07-02 | 2013-01-09 | 张家港华丰重型设备制造有限公司 | Double-spiral groove Maillefer screw |
| CN202685238U (en) * | 2012-08-08 | 2013-01-23 | 浙江嘉丞机械有限公司 | Novel threaded rod |
| CN202781735U (en) * | 2012-08-08 | 2013-03-13 | 浙江嘉丞机械有限公司 | Screw for processing PET (polyethylene terephthalate) material |
| CN203496242U (en) * | 2013-09-27 | 2014-03-26 | 江苏维达机械有限公司 | Machine barrel screw used for injection molding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |