CN203496242U - Machine barrel screw used for injection molding machine - Google Patents
Machine barrel screw used for injection molding machine Download PDFInfo
- Publication number
- CN203496242U CN203496242U CN201320609878.6U CN201320609878U CN203496242U CN 203496242 U CN203496242 U CN 203496242U CN 201320609878 U CN201320609878 U CN 201320609878U CN 203496242 U CN203496242 U CN 203496242U
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- China
- Prior art keywords
- screw
- machine barrel
- main body
- rod main
- barrel
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- Expired - Lifetime
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Abstract
The utility model relates to a machine barrel screw used for an injection molding machine. The machine barrel screw comprises a machine barrel and a screw main body movably arranged in the machine barrel, wherein the machine barrel extends out of the tail end of the screw body; the front end of the screw main body is provided with a tapered screw head; the front end of the machine barrel is provided with a front machine barrel body; the front machine barrel body is connected with the machine barrel; the tail end of the front machine barrel body is provided with a groove matched with the screw head; the screw head extends into the groove; a gap exists between the screw head and the groove; the screw main body is provided with first threads; the upper end of the front machine barrel body is provided with a nozzle; a discharge channel is arranged in the nozzle and the front machine barrel body; and the discharge channel is communicated with the groove. The machine barrel screw is characterized in that the first threads are uniformly distributed on the upper half part and the lower half part of the screw body; the upper half part of the screw main body is also provided with second threads; and the length of the second threads is shorter than that of the first threads. By utilizing the machine barrel screw, the degree of finish of a manufactured plastic product is good, and a bubble is not easy to produce.
Description
Technical field
The utility model relates to plastics machinery technical field, refers 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.
Utility model content
Technical problem to be solved in the utility model 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 adopted in the utility model 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 recessed grain matching with screw head, screw head stretches in recessed grain, in the middle of screw head and recessed grain, 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 recessed grain, 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 beneficial effects of the utility model are: 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 described in the utility model.
Fig. 2 is the partial structurtes schematic diagram of screw barrel described in the utility model.
In figure: 1, machine barrel, 2, screw rod main body, 3, screw head, 4, machine barrel precursor, 5, recessed grain, 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 described in the utility model 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 be provided with match with screw head 3 recessed poor 5, screw head 3 stretches in recessed poor 5, in the middle of screw head 3 and recessed poor 5, be provided with gap, 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 recessed poor 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 screw head 3 and recessed poor 5 gap, 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 utility model; It should be pointed out that for the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.
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 |
|---|---|---|---|
| CN201320609878.6U CN203496242U (en) | 2013-09-27 | 2013-09-27 | Machine barrel screw used for injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609878.6U CN203496242U (en) | 2013-09-27 | 2013-09-27 | Machine barrel screw used for injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203496242U true CN203496242U (en) | 2014-03-26 |
Family
ID=50327245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320609878.6U Expired - Lifetime CN203496242U (en) | 2013-09-27 | 2013-09-27 | Machine barrel screw used for injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203496242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507237A (en) * | 2013-09-27 | 2014-01-15 | 江苏维达机械有限公司 | Machine barrel screw for injection molding equipment |
-
2013
- 2013-09-27 CN CN201320609878.6U patent/CN203496242U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507237A (en) * | 2013-09-27 | 2014-01-15 | 江苏维达机械有限公司 | Machine barrel screw for injection molding equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |
|
| CX01 | Expiry of patent term |