CN202412630U - Large injection volume screw head structure - Google Patents
Large injection volume screw head structure Download PDFInfo
- Publication number
- CN202412630U CN202412630U CN 201120559324 CN201120559324U CN202412630U CN 202412630 U CN202412630 U CN 202412630U CN 201120559324 CN201120559324 CN 201120559324 CN 201120559324 U CN201120559324 U CN 201120559324U CN 202412630 U CN202412630 U CN 202412630U
- Authority
- CN
- China
- Prior art keywords
- screw head
- screw
- injection volume
- barrel
- fluid
- 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.)
- Withdrawn - After Issue
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a large injection volume screw head structure. The large injection volume screw head structure is arranged at the head part of a screw, the screw is arranged in a machine barrel, and the large injection volume screw head structure is characterized by comprising a spray nozzle, a front barrel, a diversion body, a steel ball and a screw head, wherein one end of the screw head is connected with the screw, the diversion body is arranged at the other end of the screw head, the front barrel is sheathed outside the diversion body and the screw head and connected with the machine barrel, the spray nozzle is screwed and mounted on the front barrel, the diameter of the screw head is larger than that of the screw, a flow passage is arranged at one end of the screw head, which his connected with the diversion body, and the steel ball is arranged in the flow passage. The large injection volume screw head structure disclosed by the utility model can ensure the performances of a machine, simultaneously improve the injection volume of the machine and realize low transformation cost.
Description
Technical field
The utility model relates to a kind of big injection volume screw head structure, is mainly used in the big injection volume of realization on the small screw injection machine.
Background technology
Existing be used for big injection volume injection machine and generally all need bigger screw rod to realize, the cost of so inevitable increase machine, in the time of especially on existing small injecting machine, will realizing big injection volume, improvement cost is very high especially.
The utility model content
The utility model technical problem to be solved is to overcome deficiency of the prior art and a kind of machine injection volume that when guaranteeing machine performance, improves and the cheap big injection volume screw head structure of improvement cost are provided.
The technical scheme that the utility model solves the problems of the technologies described above employing is: this big injection volume screw head structure, be arranged on screw head, and screw rod is arranged in the machine barrel; It is characterized in that: comprise nozzle, preceding barrel, divide fluid, steel ball and screw head; The first end of described screw rod is connected with screw rod, and the screw head other end is provided with the branch fluid, and preceding barrel is sleeved on the branch fluid and is connected with the screw head outside and with machine barrel; Nozzle screws in and is installed on the preceding barrel; Described screw head diameter is greater than screw diameter, and screw head is provided with runner with an end that divides fluid to be connected, and is provided with steel ball in the runner.
The described screw head inner flow passage of the utility model is being bell mouth shape near minute fluid one end, and heavy caliber one end is towards a minute fluid, and a small-bore end is towards screw rod, steel ball size between big small-bore between.
The utility model compared with prior art has the following advantages: the utility model adopts the big screw head and the structure of small screw reducing to realize big injection volume; And adopt the reverse stopping ball structure to replace the check ring structure to stop and melt the backflow of material, thereby realized the big injection volume of small screw completion.The utility model is simple in structure, and is easy to operate.Compare with the machine of same injection volume and to have reduced cost, especially be useful on the existing minicomputer and transform.Adopting the prevention of reverse stopping ball structure to melt material refluxes more reliable.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to Fig. 1, the utility model comprises nozzle 1, preceding barrel 2, divides fluid 3, steel ball 4, screw head 5, machine barrel 6 and screw rod 7.
Screw rod 7 is arranged in the machine barrel 6, and screw head 5 one ends are connected with screw rod 7, and screw head 5 other ends are provided with branch fluid 3, and the diameter of screw head 5 is greater than screw rod 7 diameters.Screw head 5 is provided with runner 51 with an end that divides fluid 3 to be connected; Be provided with steel ball 4 in the runner 51, runner 51 is being bell mouth shape near minute fluid 3 one ends, and heavy caliber one end is towards minute fluid 3; A small-bore end is towards screw rod 7, steel ball 4 diameters between big small-bore between.Preceding barrel 2 is sleeved on branch fluid 3 and is connected with screw head 5 outsides and with machine barrel 6, and nozzle 1 screws in and is installed on the preceding barrel 2.
When screw rod in the barrel 7 injection, because the diameter of the screw head 5 in the preceding barrel 2 is bigger than the diameter of screw rod 7, when the same stroke of screw rod 7 injections, screw head 5 extrudes, and to melt material amount nature just big a lot, realized the big injection volume of small screw.When screw rod 7 plasticizings; The material force steel ball 4 that melts in the machine barrel 6 moves toward branch fluid 3 directions; Because runner 51 heads are bell mouth shape, steel ball 4 carries out above-mentioned mobile back runner 51 to be opened, and melting of 51 li of runners expected through barrel 2 front end storings before dividing fluid 3 to get into.When screw rod 7 injection, melt material force steel ball in preceding barrel 2 front ends and move toward screw rod 7 directions, closed flow 51 makes and melts material and can not reflux, and has solved and has melted the phenomenon that material refluxes in the die cavity.
In addition, need to prove, the specific embodiment described in this specification, its zero, the shape of parts, institute's title of being named etc. can be different.Allly conceive equivalence or the simple change that described structure, characteristic and principle are done, include in the protection domain of the utility model patent according to the utility model patent.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; Only otherwise depart from the structure of the utility model or surmount the defined scope of these claims, all should belong to the protection domain of the utility model.
Claims (2)
1. one kind big injection volume screw head structure is arranged on screw head, and screw rod is arranged in the machine barrel; It is characterized in that: comprise nozzle, preceding barrel, divide fluid, steel ball and screw head; The first end of described screw rod is connected with screw rod, and the screw head other end is provided with the branch fluid, and preceding barrel is sleeved on the branch fluid and is connected with the screw head outside and with machine barrel; Nozzle screws in and is installed on the preceding barrel; Described screw head diameter is greater than screw diameter, and screw head is provided with runner with an end that divides fluid to be connected, and is provided with steel ball in the runner.
2. big injection volume screw head structure according to claim 1; It is characterized in that: described screw head inner flow passage is being bell mouth shape near minute fluid one end; Heavy caliber one end is towards a minute fluid, and a small-bore end is towards screw rod, steel ball size between big small-bore between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120559324 CN202412630U (en) | 2011-12-29 | 2011-12-29 | Large injection volume screw head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120559324 CN202412630U (en) | 2011-12-29 | 2011-12-29 | Large injection volume screw head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202412630U true CN202412630U (en) | 2012-09-05 |
Family
ID=46737422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120559324 Withdrawn - After Issue CN202412630U (en) | 2011-12-29 | 2011-12-29 | Large injection volume screw head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202412630U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260274A (en) * | 2013-12-30 | 2015-01-07 | 肖加云 | A pressure-maintaining nozzle |
| CN111070596A (en) * | 2019-12-17 | 2020-04-28 | 谢志康 | Injection volume super large's two-step type penetrates gluey mechanism |
-
2011
- 2011-12-29 CN CN 201120559324 patent/CN202412630U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104260274A (en) * | 2013-12-30 | 2015-01-07 | 肖加云 | A pressure-maintaining nozzle |
| CN111070596A (en) * | 2019-12-17 | 2020-04-28 | 谢志康 | Injection volume super large's two-step type penetrates gluey mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120905 Effective date of abandoning: 20160307 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |