CN103358435A - Lead rotary clamping type internal shrinkage core-pulling structure and mould with same - Google Patents
Lead rotary clamping type internal shrinkage core-pulling structure and mould with same Download PDFInfo
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- CN103358435A CN103358435A CN201310295218XA CN201310295218A CN103358435A CN 103358435 A CN103358435 A CN 103358435A CN 201310295218X A CN201310295218X A CN 201310295218XA CN 201310295218 A CN201310295218 A CN 201310295218A CN 103358435 A CN103358435 A CN 103358435A
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- slide block
- helical pitch
- rotary chuck
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Abstract
The invention provides a lead rotary clamping type internal shrinkage core-pulling structure and a mould with the lead rotary clamping type internal shrinkage core-pulling structure. The lead rotary clamping type internal shrinkage core-pulling structure comprises a core rod, a lead rod, large sliding blocks and small sliding blocks, sliding block fixing bodies, a rotary chuck and a rear cover plate, wherein the lead rod is cylindrical, a frustum part is formed at the upper part of the lead rod through shrinkage, a lead groove is formed in the outer wall of the lead rod, the large sliding blocks and the small sliding blocks are arranged around the upper part of the lead rod at intervals and used for forming inner grooves of pipefitting products, the rotary chuck is annular and is positioned in cylinders of the sliding block fixing bodies, the lead rod penetrates through the center of the rotary chuck, first centrifugal curved grooves with same quantity as that of the small sliding blocks are formed in the upper end face of the rotary chuck, second centrifugal curved grooves with same quantity as that of the large sliding blocks are formed in the inner wall of the rotary chuck and positioned below the first centrifugal curved grooves, the lower ends of the small sliding blocks are positioned in the corresponding first centrifugal curved grooves, and the lower ends of the large sliding blocks are positioned in the second centrifugal curved grooves. According to the lead rotary clamping type internal shrinkage core-pulling structure, pipe products can be smoothly pulled outside regardless of the inner diameters of the pipe products.
Description
Technical field
The present invention relates to the technical field of mold for the manufacture of inner groovy round tube series products, particularly a kind of helical pitch turns the mould that cassette inside contracts pulled core structure and has this pulled core structure.
Background technology
In the mould of making inner groovy round tube series products, pulled core structure is one of important device very.At present, when the tubing product of making than large diameter, pulled core structure can withdraw from by free-extension from the tubing product, but when making the less inner groovy round tube series products of internal diameter, because the space is limit, pulled core structure then is difficult to shrink the inner groovy that withdraws from this tubing product.
Summary of the invention
The object of the present invention is to provide a kind of helical pitch to turn the mould that cassette inside contracts pulled core structure and has this pulled core structure, be difficult to the problem of from the less inner groovy tubing product of internal diameter, extracting out to solve pulled core structure that prior art exists.
In order to address the above problem, the invention provides a kind of helical pitch and turn cassette and inside contract pulled core structure, it comprises: core bar, comprise all cylindrical epimere and hypomere, the diameter of described epimere is greater than the diameter of described hypomere; The helical pitch bar is tubular, and top is shunk and formed a frustum section, and outer wall is provided with the helical pitch groove that tilts to extend along clockwise direction from top to bottom, and the hypomere of described core bar passes described helical pitch bar along the axis of described helical pitch bar; Large slide block and small slide block, be a plurality of and quantity identical, described large slide block and small slide block arrange around the space, top of described helical pitch bar, the outside horizontal-extending in the upper surface of described large slide block and small slide block forms and extends edge, and the described large slide block of combining and the extension edge of small slide block form an annular lip to form the inner groovy of pipe fitting product; The slide block fixed body comprises cylinder and front shroud, and described front shroud is covered on the described cylinder upper surface; The central area of described front shroud is the first through hole, and described the first through hole is passed on the top of the top of described helical pitch bar and described large slide block and small slide block; Rotary chuck is circular, is arranged in the described cylinder of described slide block fixed body, and described helical pitch bar passes the center of described rotary chuck, and the upper surface of described rotary chuck is provided with the first eccentric curved groove identical with described small slide block quantity; On described rotary chuck inwall, the below of described the first eccentric curved groove is provided with the second eccentric curved groove identical with described large slide block quantity, the lower end of described small slide block is arranged in the described first corresponding eccentric curved groove, the lower end of described large slide block is arranged in the described second eccentric curved groove, when described rotary chuck rotated, the described first eccentric curved groove, the second eccentric curved groove drove described small slide block, large slide block shrinks to the center; The inwall bottom of described rotary chuck is provided with keyway, is provided with ball in described keyway and the described helical pitch groove, and when described helical pitch bar moved up and down, described helical pitch bar drove described rotary chuck by described ball and rotates; Back shroud is tabular, and the center has the second through hole, and described helical pitch bar passes described the second through hole, and described back shroud is located at the lower surface of described cylinder of described slide block fixed body so that described rotary chuck is defined in the described cylinder of described slide block fixed body.
Turn a kind of preferred embodiment that cassette inside contracts pulled core structure according to above-mentioned helical pitch, wherein, the middle part of described large slide block is provided with outward extending lead, the middle part of described small slide block is provided with outward extending guide plate, the sidewall of the described cylinder of described slide block fixed body is provided with the first pilot hole and the second pilot hole, the afterbody of described lead inserts in described the first pilot hole movably, and the afterbody of described guide plate inserts in described the second pilot hole movably.
Turn a kind of preferred embodiment that cassette inside contracts pulled core structure according to above-mentioned helical pitch, wherein, the described cylinder interior of described slide block fixed body is provided with a plurality of limited blocks, described limited block between adjacent described large slide block and small slide block so that described large slide block and small slide block are steadily mobile.
Turn a kind of preferred embodiment that cassette inside contracts pulled core structure according to above-mentioned helical pitch, wherein, described large slide block and small slide block are 4.
Turn a kind of preferred embodiment that cassette inside contracts pulled core structure according to above-mentioned helical pitch, wherein, the width of described small slide block lower end is greater than the width of described large slide block lower end, so that described small slide block is faster than the translational speed of described large slide block.
In order to address the above problem, the invention provides a kind of mould, for the manufacture of inner groovy round tube series products, have pulled core structure, and described pulled core structure is that above-mentioned arbitrary helical pitch turns cassette and inside contracts pulled core structure.
In the present invention, when the helical pitch bar was taken out outward, it can drive rotary chuck and rotate, and rotary chuck then drives small slide block, large slide block inwardly shrinks, thereby very successfully extracts out from the tubing product, no matter and the internal diameter of tubing product how.
Description of drawings
Fig. 1 is the cross-sectional view of pulled core structure preferred embodiment of the present invention;
Fig. 2 is the structural representation of the core bar of preferred embodiment shown in Figure 1;
Fig. 3 is the structural representation of the slide block fixed body of preferred embodiment shown in Figure 1;
Fig. 4 is the structural representation of the large slide block of preferred embodiment shown in Figure 1;
Fig. 5 is the structural representation of the small slide block of preferred embodiment shown in Figure 1;
Fig. 6 is the structural representation of the rotary chuck of preferred embodiment shown in Figure 1;
Fig. 7 is the structural representation of the back shroud of preferred embodiment shown in Figure 1;
Fig. 8 is the structural representation of the helical pitch bar of preferred embodiment shown in Figure 1;
Fig. 9 is the large slide block of preferred embodiment shown in Figure 1, the combining structure schematic diagram of small slide block;
Figure 10 is the combining structure schematic diagram of core bar, helical pitch bar, large slide block, small slide block and the rotary chuck of preferred embodiment shown in Figure 1;
Figure 11-12 is the helical pitch bar of preferred embodiment shown in Figure 1 and the combining structure schematic diagram of rotary chuck;
Figure 13 is the large slide block of preferred embodiment shown in Figure 1, the expanded configuration schematic diagram of small slide block;
Figure 14 is the large slide block of preferred embodiment shown in Figure 1, the contraction structure schematic diagram of small slide block.
Figure 15 is the structural representation of inner groovy round tube series products.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
As shown in Figure 1, helical pitch provided by the invention turns cassette and inside contracts the pulled core structure preferred embodiment and mainly comprise core bar 2, slide block fixed body 3, large slide block 4, small slide block 5, rotary chuck 6, back shroud 7 and helical pitch bar 8.For the clear application that shows this preferred embodiment, also show inner groovy round tube series products 1 among Fig. 1, the concrete structure of this tubing product as shown in figure 15, the inner groovy 10 that it comprises body 11 and is positioned at inboard, body 11 end.
As depicted in figs. 1 and 2, core bar 2 comprises all cylindrical epimere 21 and hypomere 22, and the diameter of epimere 21 is greater than the diameter of hypomere 22.When making tubing product 1, epimere 21 is positioned at body 11 inside of tubing product 1.
Such as Fig. 1 and Fig. 8, Figure 11, shown in Figure 12, helical pitch bar 8 is tubular, and top 82 is shunk and formed the frustum section that is similar to the frustum structure, and the top 82, the cylindrical shell 81 that run through helical pitch bar 8 are provided with a through hole 80, and through hole 80 is identical with the axis of helical pitch bar 8.82 begin from top, and the outer wall of helical pitch bar 8 is provided with the helical pitch groove 83 that tilts to extend along clockwise direction from top to bottom.The hypomere 22 of core bar 2 passes whole helical pitch bar 8 along through hole 80.
Such as Fig. 1, Fig. 4, Fig. 5, Fig. 9, Figure 10 and Figure 13, shown in Figure 14, large slide block 4 and small slide block 5 are four, and large slide block 4 and small slide block 5 arrange around 82 spaces, top of helical pitch bar 8, surround and form a tubular structure that is similar to frustum.The outside horizontal-extending in the upper surface of large slide block 4 forms and extends edge 41, and the outside horizontal-extending in the upper surface of small slide block 5 forms and extends edge 51.Especially as shown in Figure 9, the large slide block 4 of combining, the extension edge 41 of small slide block 5, extension edge 51 form an annular lip 450, to form the inner groovy (such as Fig. 1) of pipe fitting product 1.
Such as Fig. 1, Fig. 3, Figure 13 and shown in Figure 14, slide block fixed body 3 comprises cylinder 31 and front shroud 32, and front shroud 32 is covered on cylinder 31 upper surfaces; The central area of front shroud 32 is the first through hole 30, and the first through hole 30 is passed on the top 82 of helical pitch bar 8 and the top of large slide block 4, the top of small slide block 5.
Shown in Fig. 1, Fig. 6, Figure 10-12, rotary chuck 6 is circular, it is arranged in the cylinder 31 of slide block fixed body 3, helical pitch bar 8 passes the through hole 60 at rotary chuck 6 centers, the first eccentric curved groove 61 that the upper surface of rotary chuck 6 is provided with is identical with small slide block 5 quantity, arrange along circumferencial direction; On the inwall of rotary chuck 6, the second eccentric curved groove 62 that the below of the first eccentric curved groove 61 is provided with is identical with large slide block 4 quantity, arrange along circumferencial direction.The lower end 53 of small slide block 5 is arranged in the first corresponding eccentric curved groove 61, the lower end 43 of large slide block 4 is arranged in the second eccentric curved groove 62, when rotary chuck 6 rotated counterclockwise, the first eccentric curved groove 61, the second eccentric curved groove drove small slide block 5, large slide block 4 shrinks to the center; The inwall bottom of rotary chuck 6 is provided with keyway 63, is provided with the ball (not shown) in keyway 63 and the helical pitch groove 83, and when helical pitch bar 8 moved up and down, helical pitch bar 8 drove rotary chuck 6 by ball and rotates.
Such as Fig. 1 and shown in Figure 7, back shroud 7 is tabular, and the center has the second through hole 70, and helical pitch bar 8 passes the second through hole 70, and back shroud 7 is located at the lower surface of the cylinder 31 of slide block fixed body 3, so that rotary chuck 6 is defined in the cylinder 31 of slide block fixed body 3.
For large slide block 4, the small slide block 5 that makes this preferred embodiment moves more steadily, such as Fig. 1, Fig. 4 and shown in Figure 5, the middle part of large slide block 4 is provided with outward extending lead 42, and the middle part of small slide block 5 is provided with outward extending guide plate 52.Such as Fig. 3, the sidewall of the cylinder 31 of slide block fixed body 3 is provided with the first pilot hole 33 and the second pilot hole 34, such as Fig. 1, Figure 13, Figure 14, the afterbody of lead 42 inserts in the first pilot hole 33 movably, and the afterbody of guide plate 52 inserts in the second pilot hole 34 movably.
More preferably, such as Fig. 3, cylinder 31 inside of slide block fixed body 3 are provided with a plurality of limited blocks 35, limited block 35 is between adjacent large slide block 4 and small slide block 5, because lead 42 and the thickness of guide plate 52, highly different, therefore the gap 350 between the limited block 35 is also different, and lead 42, guide plate 52 move between the gap 350 that adjacent limited block 35 forms, and can make large slide block 4 and small slide block 5 steadily mobile.
Such as Fig. 4 and Fig. 5, the width of small slide block 5 lower ends 53 is greater than the width of large slide block 4 lower ends 43, like this when rotary chuck 6 rotation, and can be so that small slide block 5 be faster than the translational speed of large slide block 4.
Such as Fig. 1, Figure 13, Figure 14 and miscellaneous part figure, when the inner groovy 10 of tubing product 1, state such as Fig. 1 and shown in Figure 13 of four large slide blocks 4, four small slide blocks 5 and helical pitch bar 8, the extension edge of four large slide blocks 4, four small slide blocks 5 is combined to form an annular lip 450.Produce complete, when needing to extract this preferred embodiment out, helical pitch bar 8 is outwards mobile, and the ball in the helical pitch groove 83 rolls, and ball drives rotary chuck 6 and rotates counterclockwise, the first eccentric curved groove 61 drives the lower end 53 of small slide block 5 and shrinks to the top 82 of helical pitch bar 8, large slide block 4 also is so, then forms the state such as Figure 14, and so large slide block 4, small slide block 5 are all gathered to the center, reduced cross-sectional is easy to extract out.
In sum, the present invention is applied on the mould, when manufacturing has the tubing product of inner groovy, can be easy to finish the action of loosing core, no matter how little the internal diameter of tubing product is.
As known by the technical knowledge, the present invention can realize by other the embodiment that does not break away from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All within the scope of the present invention or the change within being equal to scope of the present invention all be included in the invention.
Claims (6)
1. a helical pitch turns cassette and inside contracts pulled core structure, it is characterized in that, comprising:
Core bar comprises all cylindrical epimere and hypomere, and the diameter of described epimere is greater than the diameter of described hypomere;
The helical pitch bar is tubular, and top is shunk and formed a frustum section, and outer wall is provided with the helical pitch groove that tilts to extend along clockwise direction from top to bottom, and the hypomere of described core bar passes described helical pitch bar along the axis of described helical pitch bar;
Large slide block and small slide block, be a plurality of and quantity identical, described large slide block and small slide block arrange around the space, top of described helical pitch bar, the outside horizontal-extending in the upper surface of described large slide block and small slide block forms and extends edge, and the described large slide block of combining and the extension edge of small slide block form an annular lip to form the inner groovy of pipe fitting product;
The slide block fixed body comprises cylinder and front shroud, and described front shroud is covered on the described cylinder upper surface; The central area of described front shroud is the first through hole, and described the first through hole is passed on the top of the top of described helical pitch bar and described large slide block and small slide block;
Rotary chuck is circular, is arranged in the described cylinder of described slide block fixed body, and described helical pitch bar passes the center of described rotary chuck, and the upper surface of described rotary chuck is provided with the first eccentric curved groove identical with described small slide block quantity; On described rotary chuck inwall, the below of described the first eccentric curved groove is provided with the second eccentric curved groove identical with described large slide block quantity, the lower end of described small slide block is arranged in the described first corresponding eccentric curved groove, the lower end of described large slide block is arranged in the described second eccentric curved groove, when described rotary chuck rotated, the described first eccentric curved groove, the second eccentric curved groove drove described small slide block, large slide block shrinks to the center; The inwall bottom of described rotary chuck is provided with keyway, is provided with ball in described keyway and the described helical pitch groove, and when described helical pitch bar moved up and down, described helical pitch bar drove described rotary chuck by described ball and rotates;
Back shroud is tabular, and the center has the second through hole, and described helical pitch bar passes described the second through hole, and described back shroud is located at the lower surface of described cylinder of described slide block fixed body so that described rotary chuck is defined in the described cylinder of described slide block fixed body.
2. helical pitch according to claim 1 turns cassette and inside contracts pulled core structure, it is characterized in that, the middle part of described large slide block is provided with outward extending lead, the middle part of described small slide block is provided with outward extending guide plate, the sidewall of the described cylinder of described slide block fixed body is provided with the first pilot hole and the second pilot hole, the afterbody of described lead inserts in described the first pilot hole movably, and the afterbody of described guide plate inserts in described the second pilot hole movably.
3. helical pitch according to claim 1 turns cassette and inside contracts pulled core structure, it is characterized in that, the described cylinder interior of described slide block fixed body is provided with a plurality of limited blocks, described limited block between adjacent described large slide block and small slide block so that described large slide block and small slide block are steadily mobile.
4. helical pitch according to claim 1 turns cassette and inside contracts pulled core structure, it is characterized in that described large slide block and small slide block are 4.
5. helical pitch according to claim 1 turns cassette and inside contracts pulled core structure, it is characterized in that the width of described small slide block lower end is greater than the width of described large slide block lower end, so that described small slide block is faster than the translational speed of described large slide block.
6. a mould for the manufacture of inner groovy round tube series products, has pulled core structure, it is characterized in that, described pulled core structure is that the arbitrary described helical pitch of claim 1-5 turns cassette and inside contracts pulled core structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295218.XA CN103358435B (en) | 2013-07-15 | 2013-07-15 | Lead rotary clamping type internal shrinkage core-pulling structure and mould with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310295218.XA CN103358435B (en) | 2013-07-15 | 2013-07-15 | Lead rotary clamping type internal shrinkage core-pulling structure and mould with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103358435A true CN103358435A (en) | 2013-10-23 |
| CN103358435B CN103358435B (en) | 2015-06-10 |
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| CN201310295218.XA Active CN103358435B (en) | 2013-07-15 | 2013-07-15 | Lead rotary clamping type internal shrinkage core-pulling structure and mould with same |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201120685Y (en) * | 2007-10-30 | 2008-09-24 | 王正军 | Internal loose core apparatus of plastic mold |
| JP2009012340A (en) * | 2007-07-05 | 2009-01-22 | Fujinon Corp | Mold assembly for rotation-free injection molding |
| CN201405467Y (en) * | 2009-05-23 | 2010-02-17 | 台州市黄岩西诺模具有限公司 | Internal core-pulling demolding structure at sealing groove of small pipe fitting |
| CN201693703U (en) * | 2010-06-13 | 2011-01-05 | 湖北鄂丰模具有限公司 | Inward open-type core-pulling die |
| CN101966737A (en) * | 2009-07-27 | 2011-02-09 | 深圳市群达行精密模具有限公司 | Demolding mechanism for full circle internal reverse clamp of automotive air inlet pipe |
| CN203381155U (en) * | 2013-07-15 | 2014-01-08 | 台州伊瑞模具有限公司 | Lead rotating and clamping type indentation core-pulling structure and die with same |
-
2013
- 2013-07-15 CN CN201310295218.XA patent/CN103358435B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009012340A (en) * | 2007-07-05 | 2009-01-22 | Fujinon Corp | Mold assembly for rotation-free injection molding |
| CN201120685Y (en) * | 2007-10-30 | 2008-09-24 | 王正军 | Internal loose core apparatus of plastic mold |
| CN201405467Y (en) * | 2009-05-23 | 2010-02-17 | 台州市黄岩西诺模具有限公司 | Internal core-pulling demolding structure at sealing groove of small pipe fitting |
| CN101966737A (en) * | 2009-07-27 | 2011-02-09 | 深圳市群达行精密模具有限公司 | Demolding mechanism for full circle internal reverse clamp of automotive air inlet pipe |
| CN201693703U (en) * | 2010-06-13 | 2011-01-05 | 湖北鄂丰模具有限公司 | Inward open-type core-pulling die |
| CN203381155U (en) * | 2013-07-15 | 2014-01-08 | 台州伊瑞模具有限公司 | Lead rotating and clamping type indentation core-pulling structure and die with same |
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| Publication number | Publication date |
|---|---|
| CN103358435B (en) | 2015-06-10 |
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Effective date of registration: 20210125 Address after: 436001 room 603, unit 2, building 4, Hangyu Changjiang international, 18 Jiangbi Road, Echeng District, Ezhou City, Hubei Province Patentee after: Zhao Guowei Address before: 318020, Taizhou City, Zhejiang province Huangyan District North City streets Pu West Village Patentee before: TAIZHOU E-REX MOULD Co.,Ltd. |
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Effective date of registration: 20211213 Address after: 314000 Zhejiang 635 Jiaxing, Tongxiang, -1098, Wutong street, Zhenjiang Road, Fengrun international business center, room No. Patentee after: Jiaxing Chuansheng mechanical equipment Co.,Ltd. Address before: 436001 room 603, unit 2, building 4, Hangyu Changjiang international, 18 Jiangbi Road, Echeng District, Ezhou City, Hubei Province Patentee before: Zhao Guowei |
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| TR01 | Transfer of patent right |