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CN-122000191-A - Amorphous nano-strip magnetic core winding die

CN122000191ACN 122000191 ACN122000191 ACN 122000191ACN-122000191-A

Abstract

The amorphous nano strip magnetic core winding die comprises a first core die and a second core die, wherein the first core die and the second core die are arranged in a sliding fit mode through inclined first inclined planes and second inclined planes, clamping grooves are formed in the first core die and the second core die respectively, clamping sleeves are sleeved outside the first core die and the second core die in a sliding mode, a taper is formed in the inner wall, close to one end of each clamping groove, of each clamping sleeve, a stripping sleeve is sleeved outside the clamping sleeve in a sliding mode, and a connecting sleeve is fixedly connected to the second core die and used for being connected with an external power mechanism to drive the first core die and the second core die to rotate synchronously. According to the invention, the first core die and the second core die are arranged in a sliding and jointing way, after winding is completed, the first core die can be contracted inwards along the direction of the inclined plane, so that the outline dimension of the die is reduced, a gap is formed between the inner wall of the magnetic core and the die, the demolding resistance is greatly reduced, the scratch and deformation of the strip caused by forced pushing are avoided, and the product yield is remarkably improved.

Inventors

  • MA LI
  • WANG RUOBING
  • YU SHU

Assignees

  • 江苏奥纳麦格科技有限公司

Dates

Publication Date
20260508
Application Date
20260401

Claims (10)

  1. 1. An amorphous nanoribbon core winding mold, comprising: The novel plastic core comprises a first core mold (3) and a second core mold (4), wherein the first core mold (3) is provided with a first inclined surface (11), the second core mold (4) is provided with a second inclined surface (12), the first inclined surface (11) and the second inclined surface (12) are arranged in a sliding fit mode, and clamping grooves (10) are formed in the first core mold (3) and the second core mold (4); the clamping sleeve (2) is slidably sleeved outside the first core die (3) and the second core die (4), and the inner wall, close to one end of the clamping groove (10), of the clamping sleeve (2) is provided with a taper; the material removing sleeve (1) is sleeved outside the clamping sleeve (2) in a sliding manner; And the connecting sleeve (5) is fixedly connected with the second core die (4) and is used for being connected with an external power mechanism to drive the first core die (3) and the second core die (4) to synchronously rotate.
  2. 2. The amorphous nano-strip magnetic core winding mold according to claim 1, wherein the first core mold (3) is provided with a first clamping head (6) and a first shaft body (7), the second core mold (4) is provided with a second clamping head (8) and a second shaft body (9), the first inclined surface (11) is arranged on the first clamping head (6) and the first shaft body (7), the second inclined surface (12) is arranged on the second clamping head (8) and the second shaft body (9), and the clamping grooves (10) are symmetrically arranged on the first clamping head (6) and the second clamping head (8).
  3. 3. The amorphous nano-strip magnetic core winding die as set forth in claim 2, wherein a limiting table (13) is arranged at the end of the second shaft body (9), a limiting groove (14) is formed in the first shaft body (7), and the limiting table (13) is embedded in the limiting groove (14).
  4. 4. The amorphous nano-strip magnetic core winding mold according to claim 2, wherein a hinge seat (15) is arranged at the end part of the first shaft body (7), and the hinge seat (15) is used for being in spherical hinge connection with a telescopic driving unit so as to drive the first core mold (3) to slide along the first inclined plane (11) and the second inclined plane (12).
  5. 5. The amorphous nano-strip magnetic core winding mold according to claim 1, wherein an inner wall of the clamping sleeve (2) is provided with an inner circular surface (17), and an end of the inner circular surface (17) close to winding operation is provided with a taper for gradually reducing a gap of the clamping groove (10) when sliding towards the clamping groove (10).
  6. 6. The amorphous nano-strip magnetic core winding die as set forth in claim 5, wherein the clamping sleeve (2) is symmetrically provided with avoidance grooves (16), the position, opposite to the avoidance grooves (16), of the inner circular surface (17) is provided with first avoidance arcs (18) which are concave inwards, and the directions of the first avoidance arcs (18) and the avoidance grooves (16) are adapted to the directions of the first inclined planes (11) so as to avoid interference with the clamping sleeve (2) when the first core die (3) slides.
  7. 7. The amorphous nano-strip magnetic core winding die as set forth in claim 1, wherein a connecting body (19) is embedded in the connecting shaft sleeve (5), the aperture of the connecting shaft sleeve (5) is larger than that of the connecting body (19), the connecting body (19) is fixedly connected with a key slot of a second shaft body (9) of the second core die (4), and second avoidance arcs (20) are symmetrically arranged in the connecting body (19) and used for avoiding interference with an inner hole of the connecting body (19) when the second core die (4) slides.
  8. 8. The amorphous nano-strip magnetic core winding mold according to claim 1, wherein the first core mold (3) and the second core mold (4) are slidably matched through a key groove, so that the first core mold and the second core mold can only slide relatively and cannot rotate relatively.
  9. 9. The amorphous nano-ribbon core winding mold according to claim 1, wherein the first core mold (3) is disposed below the second core mold (4) such that a core can be supported by the second core mold (4) while the first core mold (3) is slid inward.
  10. 10. The amorphous nano-strip magnetic core winding mold according to claim 1, wherein the stripper sleeve (1) moves towards the end parts of the first core mold (3) and the second core mold (4) after the first core mold (3) completes the shrink sliding, and the loosened magnetic core is pushed down from the mold.

Description

Amorphous nano-strip magnetic core winding die Technical Field The invention belongs to the technical field of amorphous nano belts, and particularly relates to a winding die for a magnetic core of an amorphous nano belt. Background Amorphous nanocrystalline magnetically soft alloy strips are widely used in the manufacture of magnetic cores for electronic components such as transformers and inductors due to their excellent magnetic properties. Such tapes are extremely thin, typically between 16 and 30 μm thick, and brittle after heat treatment, placing extremely high demands on the roll forming process. In the winding process of the magnetic core, the die is a key for ensuring the dimensional accuracy and the appearance quality of the magnetic core. The existing amorphous nano-strip winding mould mostly adopts an integral structure or a simple split design. Before winding, the end part of the strip needs to be fixed in a clamping groove of a die, then clamping is realized through extrusion of a clamping sleeve, and the die is driven to rotate by external power to finish winding. However, the prior art has the obvious defect that after the winding operation is finished, the nanocrystalline strip is tightly wound, the magnetic core is tightly attached to the die, and the magnetic core is forced to be pushed down from the die by directly driving the stripping sleeve. The friction force generated by the demoulding mode is huge, and the extremely thin and fragile inner layer of the nanocrystalline strip is extremely easy to scratch, fold and even break, so that the magnetic core is scrapped or the performance is reduced. In addition, when the integrated die is used for demolding, the inner wall of the magnetic core and the outer wall of the die are in whole-course contact friction, so that demolding resistance is high, products are damaged, and production efficiency is also affected. Disclosure of Invention In view of the above, the present invention provides an amorphous nano-ribbon magnetic core winding mold, which at least partially solves the above problems. The invention adopts the technical scheme that the amorphous nano strip magnetic core winding die comprises: the first core mold and the second core mold are provided with a first inclined plane, the second core mold is provided with a second inclined plane, the first inclined plane and the second inclined plane are in sliding fit, and clamping grooves are formed in the first core mold and the second core mold; The clamping sleeve is sleeved outside the first core die and the second core die in a sliding manner, and the inner wall of the clamping sleeve, which is close to one end of the clamping groove, is provided with a taper; the material removing sleeve is slidably sleeved outside the clamping sleeve; and the connecting sleeve is fixedly connected with the second core mould and is used for being connected with an external power mechanism to drive the first core mould and the second core mould to synchronously rotate. Further, the first core mold is provided with a first chuck and a first shaft body, the second core mold is provided with a second chuck and a second shaft body, the first inclined surface is arranged on the first chuck and the first shaft body, the second inclined surface is arranged on the second chuck and the second shaft body, and the clamping grooves are symmetrically arranged on the first chuck and the second chuck. Further, a limiting table is arranged at the end part of the second shaft body, a limiting groove is formed in the first shaft body, and the limiting table is embedded in the limiting groove. Further, a hinge seat is arranged at the end part of the first shaft body and is used for being in spherical hinge connection with the telescopic driving unit so as to drive the first core die to slide along the first inclined plane and the second inclined plane. Furthermore, the inner wall of the clamping sleeve is provided with an inner circular surface, and the end part of the inner circular surface, which is close to the winding operation, is provided with a taper for gradually reducing the gap of the clamping groove when sliding towards the clamping groove. Further, dodging the groove has been seted up to the symmetry on the clamp sleeve, on the interior round surface with dodge the relative position in groove and be equipped with the first arc of dodging of indent, the first arc of dodging with dodging the direction in groove with the direction adaptation on first inclined plane is used for avoid when first mandrel slides with clamp sleeve takes place to interfere. Further, the connecting sleeve is internally embedded with a connecting body, the aperture of the connecting sleeve is larger than that of the connecting body, the connecting body is fixedly connected with a second shaft body key groove of the second core mold, and second avoiding arcs are symmetrically arranged in the connecting body and used for avoiding interfer