CN204123261U - A kind of pyramid type sand paper folder - Google Patents
A kind of pyramid type sand paper folder Download PDFInfo
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- CN204123261U CN204123261U CN201420523553.0U CN201420523553U CN204123261U CN 204123261 U CN204123261 U CN 204123261U CN 201420523553 U CN201420523553 U CN 201420523553U CN 204123261 U CN204123261 U CN 204123261U
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- sand paper
- chuck
- paper folder
- pyramid type
- type sand
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Abstract
The utility model discloses a kind of pyramid type sand paper folder, belong to plastic mould production technical field.A kind of pyramid type sand paper folder comprises columniform clamping bar, and one end of described clamping bar is the chuck of frustroconical, and described chuck end has gap, and the A/F 0.3mm of described gap, the degree of depth are greater than the cone height of chuck.A kind of pyramid type sand paper folder, in order to solve less plastic mould hole throw less than problem, existing cylindrical chuck is modified into conical chuck, polishing can be carried out to the little plastic mould hole to 1mm of diameter through the sand paper folder improved, have larger improvement to prior art.
Description
Technical field
The utility model relates to a kind of sand paper folder, particularly relates to a kind of conical sand paper folder.
Background technology
In plastic mould manufacture process, conical runner glue-feeder and other circular holes are normally processed by spark machine, die hole surface smoothness after spark machine processing is good not, in order to make to reach better stripping result during mould die sinking, need to carry out the process such as polishing to runner glue-feeder and circular hole.In existing industry, the chuck that the various pass structures of mould are typically employed in sander fixedly mounts sand paper, and sander drives sand paper to carry out rotation polishing.
Lathe chuck and sand paper are pressed from both sides by sand paper and fixedly mount, and refer to Fig. 1, are the sand paper clamping structure of existing column type, are inserted into one end of sand paper in the gap of sand paper folder, after being wound by sand paper, with gummed paper, sand paper are fixed on sand paper folder along sand paper folder; And then sand paper folder is fixedly mounted on lathe chuck, sand paper is inserted in the pass structure of described mould accordingly, starts sander and carries out polishing.If the body diameter of sand paper folder is less than 2mm, the thickness of corresponding gap also can reduce, and the load that so in polishing process, gap root can bear also can reduce, and therefore causes sand paper to press from both sides gap and easily ruptures.So existing cylindrical sand paper folder all cannot be less than 2.5mm hole to diameter carry out polishing.
Therefore, how providing a kind of sand paper folder carrying out less plastic mould hole polishing, is industry technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model be for above-mentioned prior art exist cannot to problems such as less plastic mould hole polishings, a kind of pyramid type sand paper folder be proposed.
The technical solution adopted in the utility model: a kind of pyramid type sand paper folder, comprise columniform clamping bar, one end of described clamping bar is the chuck of frustroconical, and described chuck end has gap, and the A/F 0.3mm of described gap, the degree of depth are greater than the cone height of chuck.
Preferably, the large mouth diameter of the circular cone of described chuck is 3mm or 4mm.
Preferably, the body diameter of described clamping bar is 2.35mm, 3mm or 4mm.
Preferably, described chuck and diameter be 2.35mm clamping bar between be provided with one section of columniform connecting rod, the diameter of described connecting rod and the large mouth equal diameters of the circular cone of chuck.
Compared with prior art, the beneficial effects of the utility model: a kind of pyramid type sand paper folder, in order to solve less plastic mould hole throw less than problem, existing cylindrical chuck is modified into conical chuck, sand paper folder after improvement all can carry out polishing to the little plastic mould hole to 1mm of diameter, has had larger improvement to prior art.And according to different plastic mould pore sizes, standardized production goes out the sand paper folder of different tapering, can realize the popularization and application of conical sand paper folder, so just need not carry out independent sand paper folder processing, the production efficiency of plastic mould also can improve accordingly.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the structural representation of the utility model one embodiment;
Fig. 3 is the structural representation of another embodiment of the utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described further.
Refer to Fig. 2 to Fig. 3, the utility model relates to a kind of pyramid type sand paper folder, and comprise columniform clamping bar 1, one end of described clamping bar 1 is the chuck 2 of frustroconical, and described chuck 2 end has gap 3.In order to meet standardized production, application, under normal circumstances, the body diameter of clamping bar 1 is divided into 2.35mm, 3mm and 4mm etc. several.
Embodiment 1: when the body diameter of clamping bar 1 is 3mm or 4mm, the circular cone large mouth diameter R of chuck 2
1identical with the body diameter of clamping bar 1.The A/F 0.3mm of gap 3, the degree of depth are greater than the circular cone height H of chuck 2
1, being the thickness in order to ensure gap 3 root with this, preventing fracture.
Embodiment 2: when the body diameter of clamping bar 1 is 2.35mm, the circular cone large mouth diameter R of chuck 2
1be greater than the body diameter of clamping bar 1, the circular cone large mouth diameter R of chuck 2
1also 3mm and 4mm two kinds of sizes are divided into.Be provided with one section of columniform connecting rod 4 between clamping bar 1 and chuck 2, the body diameter of described connecting rod 4 equals chuck 2 circular cone large mouth diameter R
1.The A/F 0.3mm of gap 3, the degree of depth are greater than the circular cone height H of chuck 2
1, being the thickness in order to ensure gap 3 root with this, preventing fracture.
The hole depth H in plastic mould hole
2relative to bore dia R
2much smaller, therefore conical sand paper folder can carry out polishing to conical runner glue-feeder and other circular holes, and eligible:
Wherein,
r 1 the large mouth diameter of circular cone of chuck 2,
h 1 the circular cone of chuck 2 is high,
r 2 the diameter in plastic mould hole,
h 2 the hole depth in plastic mould hole.
During use, the one end of the bar shaped sand paper cut out is inserted in the gap 3 of sand paper folder, after sand paper is wound along sand paper folder, with gummed paper, sand paper is bonded on sand paper folder; And then sand paper folder is fixedly mounted on lathe chuck, start sander and carry out polishing.
Above specific embodiment is only in order to illustrate structure of the present utility model, and those of ordinary skill in the art can make various deformation and change under design of the present utility model, and these distortion and change include within protection domain of the present utility model.
Claims (4)
1. a pyramid type sand paper folder, comprise columniform clamping bar (1), it is characterized in that, one end of described clamping bar is the chuck (2) of frustroconical, described chuck end has gap (3), and the A/F 0.3mm of described gap (3), the degree of depth are greater than the cone height of chuck (2).
2. pyramid type sand paper folder according to claim 1, it is characterized in that, the large mouth diameter of circular cone of described chuck (2) is 3mm or 4mm.
3. pyramid type sand paper folder according to claim 1, it is characterized in that, the body diameter of described clamping bar (1) is 2.35mm, 3mm or 4mm.
4. pyramid type sand paper according to claim 4 folder, is characterized in that, described chuck (2) and diameter be 2.35mm clamping bar (1) between be provided with one section of columniform connecting rod (4), the diameter of described connecting rod and the large mouth equal diameters of the circular cone of chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523553.0U CN204123261U (en) | 2014-09-12 | 2014-09-12 | A kind of pyramid type sand paper folder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420523553.0U CN204123261U (en) | 2014-09-12 | 2014-09-12 | A kind of pyramid type sand paper folder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204123261U true CN204123261U (en) | 2015-01-28 |
Family
ID=52379650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420523553.0U Active CN204123261U (en) | 2014-09-12 | 2014-09-12 | A kind of pyramid type sand paper folder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204123261U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139864A (en) * | 2020-10-09 | 2020-12-29 | 豪利机械(苏州)有限公司 | Polishing process for inner wall of cone at bottom of threaded hole |
| CN113580004A (en) * | 2021-08-16 | 2021-11-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Aero-engine guide pipe spherical surface damage repairing tool and repairing method |
| CN113601387A (en) * | 2021-08-16 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Repairing tool and repairing method for conical surface damage of aircraft engine guide pipe |
-
2014
- 2014-09-12 CN CN201420523553.0U patent/CN204123261U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112139864A (en) * | 2020-10-09 | 2020-12-29 | 豪利机械(苏州)有限公司 | Polishing process for inner wall of cone at bottom of threaded hole |
| CN113580004A (en) * | 2021-08-16 | 2021-11-02 | 中国航发沈阳黎明航空发动机有限责任公司 | Aero-engine guide pipe spherical surface damage repairing tool and repairing method |
| CN113601387A (en) * | 2021-08-16 | 2021-11-05 | 中国航发沈阳黎明航空发动机有限责任公司 | Repairing tool and repairing method for conical surface damage of aircraft engine guide pipe |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |