CN103200515B - The extrusion die of interior magnetic speaker U iron - Google Patents
The extrusion die of interior magnetic speaker U iron Download PDFInfo
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- CN103200515B CN103200515B CN201310108261.0A CN201310108261A CN103200515B CN 103200515 B CN103200515 B CN 103200515B CN 201310108261 A CN201310108261 A CN 201310108261A CN 103200515 B CN103200515 B CN 103200515B
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Abstract
The invention discloses a kind of extrusion die of interior magnetic speaker U iron, comprise the upper die component with matrix cavity, there is lower mold assemblies and the ejecting mechanism of punch (13), U iron (15) is placed in the die cavity that matrix cavity and punch (13) formed, described ejecting mechanism comprises ejector (12) and push rod (11), push rod (11) is slidably connected in lower mold assemblies, the lower end of ejector (12) is fixedly connected with push rod (11) top, ejector (12) is socketed in punch (13) and be slidably matched with punch (13) outward, the end face of ejector (12) and the openend end face of U iron (15) offset.After adopting this structure, can avoid when the demoulding making U iron to produce the phenomenons such as distortion, cracking, thus the qualification rate of raising product, and can enhance productivity, reduce production cost.
Description
Technical field
The present invention relates to the technical field of acoustical generator, the extrusion die of interior magnetic speaker U iron when being specifically a kind of manufacturing.
Background technology
At present, known loud speaker is made up of magnetic circuit system, vibrational system and support system, and the magnet wherein in magnetic circuit system can be divided into T iron and U iron usually.U iron generally has the interior concave space can placing magnetite, is placed in U iron in concave space during use by magnetite and voice coil loudspeaker voice coil, then by U ferropexy in frame.Usually, U iron forms by die drawn is shaping, and the drawing die of prior art comprises cope match-plate pattern, punch, die, lower bolster and guide pillar, punch is fixed on lower bolster, die is fixed on cope match-plate pattern, and one end of guide pillar is connected with lower bolster, and the other end and cope match-plate pattern are slidably matched; In addition, be provided with ejecting mechanism in punch inside, when the demoulding, cope match-plate pattern drives die upwards to throw off before this, is more upwards pushed up by ejecting mechanism U iron is thrown off from punch.But there is following shortcoming in the U iron drawing die of this structure:
1) because ejecting mechanism is arranged on punch central part to put, push rod contacts with the bottom surface of U iron, therefore, the contact area of push rod and U iron is little, when U iron is thrown off from punch, to be subject to the active force of push rod larger in the bottom surface of U iron, thus distortion is produced to U iron bottom surface, even the root of bottom surface and sidewall can produce the phenomenon of cracking by destruction to a certain extent, causes product rejection;
2) in addition, there is outside the opening part sidewall of some U iron snap ring outwardly, in prior art, the U iron of this structure is through twice stretching to realize, therefore, have two pairs of moulds to complete the operation of these twice, increase production cost on the one hand, also make production efficiency greatly reduce on the other hand.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of can avoiding when the demoulding to make U iron produce the phenomenons such as distortion, cracking, thus improves the qualification rate of product, and the extrusion die of the interior magnetic speaker U iron of production cost of enhancing productivity, reduce.
For solving the problems of the technologies described above; the extrusion die of interior magnetic speaker U iron provided by the invention; comprise the upper die component with matrix cavity, the lower mold assemblies with punch and ejecting mechanism; U iron is placed in the die cavity of matrix cavity and punch formation; described ejecting mechanism comprises ejector and push rod; push rod is slidably connected in lower mold assemblies; the lower end of ejector is fixedly connected with push rod top; it is outer and be slidably matched with punch that ejector is socketed in punch, and the end face of ejector and the openend end face of U iron offset.Described lower mold assemblies comprises lower bolster, punch retainer, lower cavity die circle stress and lower cavity die, described lower bolster, punch retainer and lower cavity die circle stress are fixedly connected sequentially from the bottom up, punch is positioned at punch retainer, and lower cavity die close-fitting is in lower cavity die circle stress; Lower cavity die, ejector and punch form recessed die cavity.Have snap ring outwardly outside the opening part sidewall of described U iron, the recessed die cavity place of corresponding lower cavity die has cannelure.Described upper die component comprises guide rod, punch holder, drift, upper cavity die circle stress and upper cavity die, described guide rod close-fitting is in punch holder, punch holder is fixedly connected with upper cavity die circle stress, the upper part of drift is positioned at upper cavity die circle stress, the lower part of drift is positioned at upper cavity die, upper cavity die close-fitting is in upper cavity die circle stress lower end, and the lower surface of guide rod and the upper surface of drift push against, and upper cavity die, drift form fovea superior die cavity.
After adopting above structure, the present invention compared with prior art, has the following advantages:
1) because the upper surface of ejector is annular, the contact area of it and U iron is comparatively large, and therefore, at U iron from punch during the demoulding, the active force being subject to ejector is less, and distortion is just little;
2) simultaneously, the ejecting force that U iron is subject to is not positioned at bottom surface, but the end face of circle wall, in other words, active force is moved on to from center around, therefore, can avoid the root of U iron bottom surface and circle wall that the phenomenon ftractureed occurs, thus reduce the scrappage of product;
3) in addition, after the recessed die cavity place of lower cavity die is provided with the cannelure matched with the snap ring on U iron, twice extrusion process can be concentrated on an extrusion molding, only need one pair of mould just can realize, reduce production cost on the one hand, also make production efficiency greatly improve on the other hand.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the extrusion die of magnetic speaker U iron in the present invention.
Wherein: 1, guide rod; 2, punch holder; 3, drift; 4, upper cavity die circle stress; 5, upper cavity die; 6, snap ring; 7, lower cavity die circle stress; 8, lower cavity die; 9, punch retainer; 10, lower bolster; 11, push rod; 12, ejector; 13, punch; 14, cannelure; 15, U iron.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
From the structural representation of the extrusion die of magnetic speaker U iron in the present invention shown in the drawings, it comprises the upper die component with matrix cavity, the lower mold assemblies with punch 13 and ejecting mechanism, and U iron 15 is placed in the die cavity of matrix cavity and punch 13 formation.Described ejecting mechanism comprises ejector 12 and push rod 11, push rod 11 is slidably connected in lower mold assemblies, the lower end of ejector 12 is fixedly connected with push rod 11 top, and it is outer and be slidably matched with punch 13 that ejector 12 is socketed in punch 13, and the end face of ejector 12 and the openend end face of U iron 15 offset.
Described upper die component comprises guide rod 1, punch holder 2, drift 3, upper cavity die circle stress 4 and upper cavity die 5, described guide rod 1 close-fitting is in punch holder 2, punch holder 2 is fixedly connected with upper cavity die circle stress 4, the upper part of drift 3 is positioned at upper cavity die circle stress 4, the lower part of drift 3 is positioned at upper cavity die 5, upper cavity die 5 close-fitting is in upper cavity die circle stress 4 lower end, and the lower surface of guide rod 1 and the upper surface of drift 3 push against, and upper cavity die 5 and drift 3 form fovea superior die cavity.
Described lower mold assemblies comprises lower bolster 10, punch retainer 9, lower cavity die circle stress 7 and lower cavity die 8, described lower bolster 10, punch retainer 9 and lower cavity die circle stress 7 are fixedly connected sequentially from the bottom up, punch 13 is positioned at punch retainer 9, and lower cavity die 8 close-fitting is in lower cavity die circle stress 7.Lower cavity die 8, ejector 12 and punch 13 form recessed die cavity.
Have snap ring 6 outwardly outside the opening part sidewall of described U iron 15, the recessed die cavity place of corresponding lower cavity die 8 has cannelure 14.
Claims (1)
1. the extrusion die of magnetic speaker U iron in a kind, comprise the upper die component with matrix cavity, there is lower mold assemblies and the ejecting mechanism of punch (13), U iron (15) is placed in the die cavity that matrix cavity and punch (13) formed, it is characterized in that: described ejecting mechanism comprises ejector (12) and push rod (11), push rod (11) is slidably connected in lower mold assemblies, the lower end of ejector (12) is fixedly connected with push rod (11) top, ejector (12) is socketed in punch (13) and be slidably matched with punch (13) outward, the end face of ejector (12) and the openend end face of U iron (15) offset, described lower mold assemblies comprises lower bolster (10), punch retainer (9), lower cavity die circle stress (7) and lower cavity die (8), described lower bolster (10), punch retainer (9) and lower cavity die circle stress (7) are fixedly connected sequentially from the bottom up, punch (13) is positioned at punch retainer (9), and lower cavity die (8) close-fitting is in lower cavity die circle stress (7), lower cavity die (8), ejector (12) and punch (13) form recessed die cavity, have snap ring (6) outwardly outside the opening part sidewall of described U iron (15), the recessed die cavity place of corresponding lower cavity die (8) has cannelure (14), described upper die component comprises guide rod (1), punch holder (2), drift (3), upper cavity die circle stress (4) and upper cavity die (5), described guide rod (1) close-fitting is in punch holder (2), punch holder (2) is fixedly connected with upper cavity die circle stress (4), the upper part of drift (3) is positioned at upper cavity die circle stress (4), the lower part of drift (3) is positioned at upper cavity die (5), upper cavity die (5) close-fitting is in upper cavity die circle stress (4) lower end, the lower surface of guide rod (1) and the upper surface of drift (3) push against, upper cavity die (5) and drift (3) form fovea superior die cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108261.0A CN103200515B (en) | 2013-03-29 | 2013-03-29 | The extrusion die of interior magnetic speaker U iron |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108261.0A CN103200515B (en) | 2013-03-29 | 2013-03-29 | The extrusion die of interior magnetic speaker U iron |
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| Publication Number | Publication Date |
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| CN103200515A CN103200515A (en) | 2013-07-10 |
| CN103200515B true CN103200515B (en) | 2015-09-23 |
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| CN201310108261.0A Active CN103200515B (en) | 2013-03-29 | 2013-03-29 | The extrusion die of interior magnetic speaker U iron |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611794A (en) * | 2013-11-13 | 2014-03-05 | 梧州恒声电子科技有限公司 | Flattening die for T-shaped iron |
| CN103639222A (en) * | 2013-11-25 | 2014-03-19 | 梧州恒声电子科技有限公司 | U iron extrusion die |
| CN114289612B (en) * | 2022-01-10 | 2023-10-27 | 赣州基盛精密机械有限公司 | Orthopedic equipment is used in production of car bolt reed |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201768835U (en) * | 2010-08-18 | 2011-03-23 | 宁波向阳坦科斯特电子有限公司 | U-shaped iron flanging sizing die |
| CN202037256U (en) * | 2011-04-20 | 2011-11-16 | 宁波向阳坦科斯特电子有限公司 | U-shaped iron stretching die |
| CN202212512U (en) * | 2011-05-05 | 2012-05-09 | 宁波向阳坦科斯特电子有限公司 | U-iron cold extrusion die |
| CN203104775U (en) * | 2013-03-29 | 2013-07-31 | 宁波科高电声有限公司 | Extrusion die for U iron of inside magnetic loudspeaker |
-
2013
- 2013-03-29 CN CN201310108261.0A patent/CN103200515B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201768835U (en) * | 2010-08-18 | 2011-03-23 | 宁波向阳坦科斯特电子有限公司 | U-shaped iron flanging sizing die |
| CN202037256U (en) * | 2011-04-20 | 2011-11-16 | 宁波向阳坦科斯特电子有限公司 | U-shaped iron stretching die |
| CN202212512U (en) * | 2011-05-05 | 2012-05-09 | 宁波向阳坦科斯特电子有限公司 | U-iron cold extrusion die |
| CN203104775U (en) * | 2013-03-29 | 2013-07-31 | 宁波科高电声有限公司 | Extrusion die for U iron of inside magnetic loudspeaker |
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| CN103200515A (en) | 2013-07-10 |
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