CN204936083U - Ball screw moves back thread systems - Google Patents
Ball screw moves back thread systems Download PDFInfo
- Publication number
- CN204936083U CN204936083U CN201520702642.6U CN201520702642U CN204936083U CN 204936083 U CN204936083 U CN 204936083U CN 201520702642 U CN201520702642 U CN 201520702642U CN 204936083 U CN204936083 U CN 204936083U
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- ball screw
- screw
- moves back
- thread
- ball
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Abstract
The utility model discloses a kind of ball screw and move back thread systems, comprise: the outer cover of ball screw and screw thread fuse, described ball screw has driving gear, the outside middle part cover of described screw thread fuse has driven gear, the bottom of described screw thread fuse is provided with strand facing, described driving gear and driven gear engaged transmission.By the way, the retrogressing rotation that the utility model can realize screw thread fuse in mould is moved back screw thread and rotates reset of advancing, and automaticity is high, saves the production cycle.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, is specifically related to a kind of ball screw and moves back thread systems.
Background technology
At present, what Shooting Technique used in producing moves back thread systems many employings motor driving chain, sprocket wheel, or oil cylinder pushing tooth bar, gear, makes screw thread fuse rotate and retreat, realizes moving back screw thread with this.Aborning, motor or oil cylinder need start-up time, also screw thread fuse will be resetted, so just extend the production cycle after having moved back screw thread.And motor or oil cylinder, all outside mould, make die boundary dimensions strengthen, mechanism is complicated.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of ball screw and moves back thread systems, and this system all completes in mould, opening by mould, screw thread fuse is retreated and rotates, and realizes moving back screw thread; Closing of mould, makes screw thread fuse rotate reset of advancing.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of ball screw to move back thread systems, comprise: ball screw and screw thread fuse, the outer cover of described ball screw has driving gear, the outside middle part cover of described screw thread fuse has driven gear, the bottom of described screw thread fuse is provided with strand facing, described driving gear and driven gear engaged transmission.
In the utility model preferred embodiment, described ball screw and driving gear are screwed.
In the utility model preferred embodiment, described driven gear is by key and thread core sub-connection.
In the utility model preferred embodiment, described ball screw comprises screw mandrel and ball overcoat, and described screw mandrel is provided with steep-lead thread, is provided with metal balls between described screw mandrel and ball overcoat.
In the utility model preferred embodiment, the pitch of described strand facing is consistent with the pitch of screw thread fuse upper end.
The beneficial effects of the utility model are: this ball screw that the utility model utility model provides moves back thread systems, completes and moves back action, thread, do not have dead time in mould open/close, shorten the mould molding cycle.Mould structure is simple in addition, does not have unnecessary external structure or device, reduces die boundary dimensions.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model ball screw moves back thread systems;
In accompanying drawing, the mark of each parts is as follows: 1, ball screw; 2, screw thread fuse; 3, driving gear; 4, driven gear; 5, facing is twisted; 10, screw mandrel; 11, ball overcoat; 12, metal balls.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model.
Refer to Fig. 1, the utility model embodiment comprises: a kind of ball screw moves back thread systems, comprise: the outer cover of ball screw 1 and screw thread fuse 2, described ball screw 1 has driving gear 3, the outside middle part cover of described screw thread fuse 2 has driven gear 4, the bottom of described screw thread fuse 2 is provided with strand facing 5, described driving gear 3 and driven gear 4 engaged transmission.
Furtherly, described ball screw 1 is screwed with driving gear 3; Described driven gear 4 is connected with screw thread fuse 2 by key; Described ball screw 1 comprises screw mandrel 10 and ball overcoat 11, and described screw mandrel 1 is provided with steep-lead thread, is provided with metal balls 12 between described screw mandrel 10 and ball overcoat 11; The pitch of described strand facing 5 is consistent with the pitch of screw thread fuse 2 upper end.
The utility model ball screw moves back thread systems in actual use, and screw mandrel 10 retreats, but non rotating, ball overcoat 11 starts to rotate, and drives driving gear 3 to rotate, then drives to driven gear 4; Drive screw thread fuse 2 again, screw thread fuse 2 by the restriction of strand facing 5, retreats backward in rotation, realizes moving back action, thread.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (5)
1. a ball screw moves back thread systems, it is characterized in that, comprise: ball screw and screw thread fuse, the outer cover of described ball screw has driving gear, the outside middle part cover of described screw thread fuse has driven gear, the bottom of described screw thread fuse is provided with strand facing, described driving gear and driven gear engaged transmission.
2. ball screw according to claim 1 moves back thread systems, it is characterized in that: described ball screw and driving gear are screwed.
3. ball screw according to claim 1 moves back thread systems, it is characterized in that: described driven gear is by key and thread core sub-connection.
4. ball screw according to claim 1 moves back thread systems, it is characterized in that: described ball screw comprises screw mandrel and ball overcoat, and described screw mandrel is provided with steep-lead thread, is provided with metal balls between described screw mandrel and ball overcoat.
5. ball screw according to claim 1 moves back thread systems, it is characterized in that: the pitch of described strand facing is consistent with the pitch of screw thread fuse upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520702642.6U CN204936083U (en) | 2015-09-11 | 2015-09-11 | Ball screw moves back thread systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520702642.6U CN204936083U (en) | 2015-09-11 | 2015-09-11 | Ball screw moves back thread systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204936083U true CN204936083U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520702642.6U Active CN204936083U (en) | 2015-09-11 | 2015-09-11 | Ball screw moves back thread systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204936083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414954A (en) * | 2021-06-22 | 2021-09-21 | 台州誊喏模塑有限公司 | Injection mold and injection molding process thereof |
-
2015
- 2015-09-11 CN CN201520702642.6U patent/CN204936083U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414954A (en) * | 2021-06-22 | 2021-09-21 | 台州誊喏模塑有限公司 | Injection mold and injection molding process thereof |
| CN113414954B (en) * | 2021-06-22 | 2022-11-01 | 台州誊喏模塑有限公司 | Injection mold and injection molding process thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |