CN202943851U - Self-centering extrusion mold - Google Patents
Self-centering extrusion mold Download PDFInfo
- Publication number
- CN202943851U CN202943851U CN2012206737003U CN201220673700U CN202943851U CN 202943851 U CN202943851 U CN 202943851U CN 2012206737003 U CN2012206737003 U CN 2012206737003U CN 201220673700 U CN201220673700 U CN 201220673700U CN 202943851 U CN202943851 U CN 202943851U
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- China
- Prior art keywords
- centering
- core rod
- mold
- angle
- die cap
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model provides a self-centering extrusion mold. The extrusion mold comprises a mold core and a mold cover, wherein four positioning pins are arranged on an outer conical surface of the mold core and are fixedly connected on the mold core; an annular platform is arranged at the tail end of an inner conical surface of the mold cover; and the inner diameter of the annular platform is connected with the outer diameters of the positioning pins of the mold core in a matching manner. The extrusion mold can achieve self-centering, thus reducing the time for concentric adjustment, improving the production efficiency and the product production consistency and saving the raw materials of sheaths and the cost.
Description
Technical field
The utility model relates to a kind of from the centering plsitive mold, belongs to Communication ray cable molding technical field.
Background technology
Along with the production-scale expansion of optical cable, how Market competition reduces the operation loss, raises the efficiency the important goal that becomes Reducing Cost in Enterprises.In the sheath operation that optical cable is produced, adopt extrusion process to make the oversheath of optical cable, and national standard or client all have certain requirement to the thickness of oversheath, specific requirement often comprises three numerical value, i.e. nominal value, mean value and minimum of a value.Because of protective cover material shared ratio in the non-optical fiber cost of optical cable maximum, so the consumption of protective cover material is directly connected to the cost of optical cable.In order to satisfy the requirement of external jacket thickness, save simultaneously protective cover material, just need the concentricity of oversheath very high, avoid the waste of the protective cover material that bias causes.
The concentricity of oversheath is that the concentricity that relies on the core rod die cap to coordinate guarantees, the concentric problem that therefore solves the core rod die cap can solve the concentric problem of oversheath.Traditional core rod die cap concentricity ensure dual mode, a kind of is the integral type head, and the core rod die cap directly is contained on head, after head, core rod, die cap three's processing, concentricity is the concentricity of sheath moulding, can not adjust.This mode one has proposed very high requirement to the machining accuracy of head, core rod, die cap, and two when any one has wearing and tearing the three, all is difficult to guarantee its concentricity, especially the head inner chamber impaired after.Another kind is the separate type head, and core rod and die cap are arranged on respectively on two parts of head, and the core rod mounting portion is stiff end, and adjustment up and down can be carried out in the die cap mounting portion.This kind mode can be carried out active accommodation, but to the having relatively high expectations of operating personnel, the subjectivity adjustment of depending on one heart operating personnel of core rod die cap, so the uniformity of product is difficult to guarantee, the generation that eccentric excessive situation causes the optical cable substandard products often occurs
Summary of the invention
Problem to be solved in the utility model is to provide the plsitive mold of a kind of energy automatic centering.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of from the centering plsitive mold, comprise core rod and die cap, and the outer conical surface of described core rod is provided with four angles, and described angle is fixed on core rod; The tail end of the internal conical surface of described die cap is provided with an annular table, and the external diameter of the internal diameter of described annular table and core rod angle is connected.
Further, circumferentially even 90 ° of distributions of described four angles.
Further, the longitudinal cross-section of described angle is shaped as isosceles trapezoid.
Further, the width of described angle is circular division 15-25 °.
Further, described angle and core rod weld together.
Further, the external diameter of the internal diameter of described annular table and core rod angle is interference fits.
Further, the width of described annular table is greater than the length of angle.
Further, described die core front end face and die cap front end face spacing are 8-12mm.
Advantage and the good effect that the utlity model has are: adopt the technical program, four equally distributed angles on core rod male-tapered face and the annular table of die cap internal conical surface tail end coordinate, realized automatic centering between the two, thereby solved the problem of concentric adjustment, simplified the Operating Complexity of concentric adjustment, reduce the required time of concentric adjustment, improved production efficiency; Improved the uniformity of production; Exempted conventional method and need to extrude protective cover material and adjust with one heart, thereby saved the sheath raw material, provided cost savings.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the mold insert structure schematic diagram;
Fig. 3 is the A-A cutaway view of core rod in Fig. 2;
Fig. 4 is the structural representation of die cap.
In figure:
1. core rod 2. die caps
11. outer conical surface 12. angles
21. internal conical surface 22. annular table
The specific embodiment
Enumerating a specific embodiment below in conjunction with accompanying drawing is further elaborated the utility model.
As shown in Figure 1, the utility model is a kind of from the centering plsitive mold, comprises core rod 1 and die cap 2, and the outer conical surface 11 of described core rod 1 is provided with four angles 12, and described angle 12 is fixed on core rod 1; The tail end of the internal conical surface 21 of described die cap 2 is provided with an annular table 22, and the external diameter of the internal diameter of described annular table 22 and core rod 1 angle 12 is connected.
In the present embodiment, totally four of angles 12, when one of them angle 12 is too large or coordinate when bad due to the gap of 22 of the annular table of wearing and tearing or other reasons and die cap, other three angles 12 can also make core rod 1 and die cap 2 from centering.
Four angles 12 circumferentially evenly are 90 ° of distributions, and the longitudinal cross-section of angle 12 is shaped as isosceles trapezoid, and the width of angle 12 is circular division 15-25 °, and in the present embodiment, angle 12 is connected together with core rod 1 brazing.
The external diameter of the internal diameter of annular table 22 and core rod angle 12 is interference fits, and the width of annular table 22 guarantees 2 stability that coordinate of core rod 1 and die cap so effectively greater than the length of angle 12.
The operation principle of the present embodiment: core rod 1 is arranged on the standing part of separate type head, die cap 2 coordinates with core rod angle 12 by the annular table 22 of tail end, be arranged on core rod 1, its X-Y direction is all limited on the coupling face of core rod 1 outlet and die cap 2 like this, and consistent with one heart, and then another part of head is installed, with fixing die cap 2, limit it in the displacement of Z-direction, thereby realized the adjustment of concentricity, and guarantee that the spacing of core rod 1 front end face and die cap 2 front end faces remains on 8-12mm; Improve the uniformity of production efficiency and product, saved cost.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., within all should still belonging to patent covering scope of the present utility model.
Claims (8)
1. one kind from the centering plsitive mold, comprises core rod and die cap, and it is characterized in that: the outer conical surface of described core rod is provided with four angles, and described angle is fixed on core rod; The tail end of the internal conical surface of described die cap is provided with an annular table, and the external diameter of the internal diameter of described annular table and core rod angle is connected.
2. according to claim 1 from the centering plsitive mold, it is characterized in that: described four angles circumferentially evenly are 90 ° of distributions.
3. according to claim 1 from the centering plsitive mold, it is characterized in that: the longitudinal cross-section of described angle is shaped as isosceles trapezoid.
4. according to claim 1 from the centering plsitive mold, it is characterized in that: the width of described angle is circular division 15-25 °.
5. according to claim 1 from the centering plsitive mold, it is characterized in that: described angle and core rod weld together.
6. according to claim 1 from the centering plsitive mold, it is characterized in that: the external diameter of the internal diameter of described annular table and core rod angle is interference fits.
7. according to claim 1 from the centering plsitive mold, it is characterized in that: the width of described annular table is greater than the length of angle.
8. according to claim 1 from the centering plsitive mold, it is characterized in that: described die core front end face and die cap front end face spacing are 8-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206737003U CN202943851U (en) | 2012-12-06 | 2012-12-06 | Self-centering extrusion mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206737003U CN202943851U (en) | 2012-12-06 | 2012-12-06 | Self-centering extrusion mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202943851U true CN202943851U (en) | 2013-05-22 |
Family
ID=48419564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206737003U Expired - Fee Related CN202943851U (en) | 2012-12-06 | 2012-12-06 | Self-centering extrusion mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202943851U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384352A (en) * | 2018-07-03 | 2021-02-19 | 康宁股份有限公司 | Extrusion device with fixed profile |
-
2012
- 2012-12-06 CN CN2012206737003U patent/CN202943851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112384352A (en) * | 2018-07-03 | 2021-02-19 | 康宁股份有限公司 | Extrusion device with fixed profile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN XINMAO SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20131122 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131122 Address after: Yangliuqing town, Liu Hau Road 300384 Tianjin city Xiqing District No. 98 Patentee after: TIANJIN YOFC XMKJ OPTICAL CABLE CO., LTD. Patentee after: TIANJIN XINMAO SCIENCE & TECHNOLOGY CO., LTD. Address before: Yangliuqing town, Liu Hau Road 300384 Tianjin city Xiqing District No. 98 Patentee before: TIANJIN YOFC XMKJ OPTICAL CABLE CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20171206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |